• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    filtration system, and, filtration method. a filtration system is arranged to safely vent a tank into which a mist mixture is introduced. venting a tank reduces and/or prevents a substantial increase in tank internal pressure. to control the pressure difference between the tank and the ambient air pressure, a ventilation manifold with an in-line duct fan is used, for example, to release the air from the tank to the atmosphere. the exhaust air from the tank is then filtered to reduce exfiltration and/or other contaminants from the environmentally sealed tank.
    公开号:BR112015002349B1
    申请号:R112015002349-5
    申请日:2013-07-31
    公开日:2021-08-24
    发明作者:Robert Scott Fassel；Scott Aaron Christie
    申请人:Pace International, Llc；
    IPC主号:
    专利说明:

    FUNDAMENTALS
    [001] Post-harvest chemicals are applied to fruits in an environmentally sealed deposit. Air treatment chemicals are applied in the form of a chemical mist mixture. The mist mixture is introduced into the tank using a device such as an electrothermal spray gun. The introduction of externally supplied air into the mist mixture increases the internal pressure of the environmentally sealed deposits. SUMMARY
    [002] This summary is provided to introduce a variety of concepts in a simplified form, which are further described below in the detailed description. This summary is not intended to identify the main features or essential characteristics of the object claimed, nor is it intended as an aid in determining the scope of application of the subject matter claimed.
    [003] A system and method for safely venting a warehouse (such as a goods warehouse) into which a mist mixture is introduced is disclosed in this document. Venting a tank reduces and/or prevents a substantial increase in tank internal pressure. To control the pressure difference between the tank and the ambient air pressure, a vent manifold with an in-line duct fan is used, for example, to release the air from the tank to atmosphere. The exhaust air from the deposit is then filtered to reduce the exhaust and/or other contaminants from the environmentally sealed deposit.
    [004] These and other features and advantages will become evident from a reading of the following detailed description and a review of the associated drawings. It is understood that both the above general description and the detailed description below are only explanatory and not restrictive. Among other things, the various embodiments described in this document can be embodied as methods, devices, or a combination thereof. Therefore, the present disclosure is not to be construed as limiting. BRIEF DESCRIPTION OF THE FIGURES
    [005] FIG. 1 is a schematic diagram illustrating a thermal fog filter system in accordance with embodiments of the present invention;
    [006] FIG. 2 is an isometric view illustrating a filter system in accordance with the embodiments of the present disclosure;
    [007] FIG. 3 is a graphical diagram illustrating the efficiency of a "3M" filterbank used in a thermal fog filtration system, in accordance with embodiments of the present disclosure;
    [008] FIG. 4 is a graphical diagram illustrating the efficiency of a "3M well-sealed" filter bank used in a thermal fog filtration system, in accordance with embodiments of the present disclosure;
    [009] FIG. 5 is a graphical diagram illustrating the efficiency of a "cheap" filterbank used in a thermal fog filtration system, in accordance with embodiments of the present disclosure;
    [0010] FIG. 6 is a graphical diagram illustrating the efficiency of a "reusable" filterbank used in a thermal fog filtration system, in accordance with embodiments of the present disclosure;
    [0011] FIG. 7 is a graphical diagram illustrating the efficiency of a "cheap filterbank (2nd test) used in a thermal fog filtration system, in accordance with embodiments of the present disclosure;
    [0012] FIG. 8 is a graphical diagram illustrating the effectiveness of a filterbank of "reusable filters pretreated with propylene glycol" (PG) used in a thermal fog filtration system, in accordance with embodiments of the present disclosure;
    [0013] FIG. 9 is a graphical diagram illustrating the efficiency of a "carbon/fiber (untreated) filter" filterbank used in a thermal mist filtration system, in accordance with embodiments of the present disclosure;
    [0014] FIG. 10 is a graphical diagram illustrating the efficiency of a "carbon/fiber filter (10% PG)" filterbank used in a thermal fog filtration system, in accordance with embodiments of the present disclosure;
    [0015] FIG. 11 is a graphical diagram illustrating the efficiency of a "3M Filter (2nd Test)" filterbank used in a thermal fog filtration system, in accordance with embodiments of the present disclosure;
    [0016] FIG. 12 is a graphical diagram illustrating the efficiency of a "3M filter (wash and dry)" filterbank used in a thermal fog filtration system, in accordance with embodiments of the present disclosure;
    [0017] FIG. 13 is a graphical diagram illustrating the efficiency of a "two inexpensive filters and four 3M filters" filterbank used in one in a thermal fog filtration system, in accordance with embodiments of the present disclosure;
    [0018] FIG. 14 is a graphical diagram illustrating the efficiency of a filterbank of "two inexpensive filters and four 3M filters (reused)" used in one in a thermal fog filtration system, in accordance with embodiments of the present disclosure;
    [0019] FIG. 15 is a graphical diagram illustrating the efficiency of a filterbank of "20x25 (new) 3M filters" used in a thermal fog filtration system, in accordance with embodiments of the present disclosure;
    [0020] FIG. 16 is a graphical diagram illustrating the efficiency of a filterbank of "20x25 (reused) 3M filters" used in a thermal fog filtration system, in accordance with embodiments of the present disclosure;
    [0021] FIG. 17 is a graphical diagram illustrating the efficiency of a "20x25 (1900 EcoFOG)" 3M filter bank used in a thermal fog filtration system, in accordance with embodiments of the present disclosure;
    [0022] FIG. 18 is a graphical diagram illustrating the efficiency of a "20x25 (1900 DP A Melted)" filterbank used in a thermal fog filtration system, in accordance with embodiments of the present disclosure;
    [0023] FIG. 19 is a graphical diagram illustrating the efficiency of a "20x25 3M (1900 EcoFOG 100 new)" filterbank used in a thermal fog filtration system, in accordance with embodiments of the present disclosure;
    [0024] FIG. 20 is a graphical diagram illustrating the efficiency of a "20x25 3M (1900 EcoFOG 100 new)" filterbank used in a thermal fog filtration system, in accordance with embodiments of the present disclosure;
    [0025] FIG. 21 is a graphical diagram illustrating the efficiency of a filterbank of "six new 3M filters (EcoFOG 160)" used in one in a thermal fog filtration system, in accordance with embodiments of the present disclosure;
    [0026] FIG. 22 is a graphic diagram illustrating the efficiency of a filter bank of 20x25 "3M filters (2200 plus two inches of EcoFOG 160 2L activated carbon) used in a thermal fog filtration system, according to modalities of present disclosure;
    [0027] FIG. 23 is a graphical diagram illustrating the efficiency of a second test of a 20x25 "3M filter bank (2200 plus two inches of EcoFOG 160 2L activated carbon) filter bank used in a thermal fog filtration system of according to the modalities of this disclosure. DETAILED DESCRIPTION
    [0028] Various embodiments will be described in detail with reference to the drawings, in which similar reference numbers represent similar parts and assemblies by means of several views. Many details of certain embodiments of the disclosure are set out in the following description and accompanying figures, so as to provide a complete understanding of the modalities. References to the various embodiments do not limit the scope of the claims appended hereto. Additionally, some examples presented in this specification are not intended to be limiting, and merely set out some of the various modalities for the claims appended hereto.
    [0029] FIG. 1 is a schematic diagram illustrating a thermal fog filter system in accordance with embodiments of the present invention. The thermal fog filtration system 100 includes an environmentally sealed bin 110 (like a goods bin for storing potatoes) and is provided to safely treat items within an environmentally sealed bin 110. The environmentally sealed bin 110 is a room substantially closed which is arranged to substantially reduce the introduction of a substantial amount of treatment substances into a surrounding area.
    [0030] Access to the environmentally sealed deposit chamber 110 can be provided using the inlet 112, which is arranged to allow entry and exit from the environmentally sealed deposit chamber 110 through, for example, humans and/or items 124 to be treated within the environmentally sealed deposit 110. (In many embodiments, the environmentally sealed deposit 110 is any suitable chamber, and does not need to be large enough to allow a human to enter the environmentally sealed deposit 110.)
    [0031] An air flow substance infuser is arranged to infuse treatment substances into the air flow to generate airborne treatment substance. The airflow substance infuser is arranged to introduce the airflow and airborne treatment into a substantially closed room air volume to generate dispersed airborne substances. The thermal fog gun is an example of an airborne substance infuser that is arranged to infuse treatment substances into an air stream. Thermal mist gun 120 is attached to environmentally sealed container 100 through access port 112, which is normally sealed during times when items 124 within environmentally sealed container 110 are being treated. During treatment, airborne substances 122 are introduced into an environmentally sealed vessel 110 by directing the air flow through an exhaust port of the thermal mist gun 120. The airborne substances 122 disperse after being introduced into the vessel environmentally sealed 110 and come into contact with the 124 items to be handled.
    [0032] In an exemplary application, post-harvest chemicals are applied to fruit (or vegetables, including tubers such as potatoes) in environmentally sealed deposits using the thermal mist application method. Air and mist treatment chemicals are introduced into a depot (and/or container) using an electrically powered thermal fog gun. The treatment chemicals are dispersed into the tank using air currents (such as those caused by the thermal fog gun itself and/or circulating fans) and diffusion gradients (e.g., naturally occurring). (The term “fan” means, for example, a device that causes air to move). The operation can be continued (without, for example, interruption over a period of hours (approximately)
    [0033] However, the introduction of airborne substances 122 into an environmentally sealed tank 110 can increase the air pressure of the environmentally sealed tank 110. For example, increasing the air pressure of the environmentally sealed tank 110 can potentially cause the exfiltration of air (and airborne particles) from the environmentally sealed container 110, and according to the degree to which the environmentally sealed container is, among other things, airtight. In addition, increasing the air pressure of the environmentally sealed tank 110 can cause a high back pressure existing in relation to the exhaust port of the thermal fog gun 120, which can cause a reduction in the effectiveness of the thermal fog gun, as well as the reduction in the efficiency of the treatment process for airborne substances 122.
    [0034] An exhaust manifold 140 is provided to prevent a substantial increase in air pressure in the environmentally sealed tank 110 (so that, for example, uncontrolled exfiltration is reduced and/or eliminated). In an exemplary embodiment, the exhaust manifold 140 is a plastic tube that is disposed in an area that is an environmentally sealed tank 110 that is at an opposite end of and/or away from the area of the access port 112, so that the airborne substances pass through a portion of the environmentally sealed warehouse 110 which includes items 124 to be treated.
    [0035] The vent openings 142 are disposed in the exhaust manifold 140 to allow the introduction of air (including airborne particles) into the exhaust manifold 140. In an exemplary embodiment, the vent openings 142 are three/quarters of a time. inch in diameter and are spaced by 18 inch centers along one wall of an environmentally sealed tank 110 that faces the exhaust port of the thermal fog gun 120. The air pressure that builds up in the environmentally sealed tank 110 by introducing air (which transports airborne substances) into the environmentally sealed container 110 facilitates the introduction of air (including airborne particles) into an exhaust manifold 140. The distribution arrangement of vent openings 142 along parts of the exhaust manifold 140 (placed along the wall opposite the exhaust port 112 through which airborne substances 122 are introduced in an environmentally sealed container 110, for example) promote a more balanced distribution of airborne substances throughout the chamber of the environmentally sealed container 110.
    [0036] The exhaust manifold 140 is coupled to the filter 150 which is arranged to capture a part (including a part containing substantially all) of the concentration of airborne particles that have been introduced into the exhaust manifold 140. The filter 150 can be located out of the environmentally sealed tank to allow easy maintenance and monitoring of filter 150. (Filter 150 is further described below, with reference to FIG. 2.)
    [0037] To reduce the possibility of exfiltration of airborne particles from the filter 150 (and/or parts of the exhaust manifold 140 that are external to the environmentally sealed tank 110), and the in-line duct fan 160 is coupled to the exhaust 150. In-line duct blower 160 is arranged to supply a negative pressure (eg, suction) to the exhaust filter 150. The applied negative pressure can, for example, be used to reduce the pressure of the filter 150 relative to the pressure of ambient air (eg, the air pressure around the environmentally sealed tank 110).
    [0038] The reduced internal pressure of filter 150 substantially reduces the potential for airborne substances to escape from filter housing 150 by decreasing (and/or reversing) the pressure gradient between the interior of the filter 150 and the exterior of the filter 150 (As described below, the filter housing 150 is arranged to be opened to allow for maintenance of the filter 150 as well as for inspection of the same). The exhaust gases from the in-line duct fan 160 can be, for example, optionally coupled to another filter, and/or installed in series both before and after the filter 150. The exhaust from the in-line duct fan 160 can be released as an exhaust (through exhaust port 170) to ambient air (around the environmentally sealed tank). The exhaust port 170 optionally contains a check valve 172 to, for example, allow parts of the system (as described below) to operate at pressures below ambient (eg, a gauge) (which normally reduces the possibility of exfiltration of substances treatment for ambient air).
    [0039] In one embodiment, the thermal fogging gun 120 is arranged to introduce about 30-40 cubic feet per minute (CFM) of air/chemical mixture into the environmentally sealed tank 110 as a mist. Controller 180 is arranged to determine ambient pressure (via sensor 182), chamber pressure (via sensor 132), filter inlet pressure (via sensor 152), filter exhaust pressure (via sensor 154), and the exhaust pressure of the fan (via sensor 162).
    [0040] Controller 180 is arranged to control the tank pressure to a value selected between (for example) -0.15 and +0.15 inches of water column (IWC) using a pressure difference reading. The pressure difference reading can be determined by subtracting a reading from sensor 132 with an (almost simultaneous) reading from sensor 182. Controller 180 is arranged to control the tank pressure to a value selected to control the speed of the tank fan. in-line duct.
    [0041] Controller 180 can also determine the flow rate through filter 150 by determining the pressure difference in response to readings from sensor 152 (and the input of filter 150) and a sensor 154 (in the exhaust of filter 150). An abnormally high pressure difference may indicate a clogging of the filter (for example), or indicate that the filter is in need of maintenance. Pressure sensor 162 can be used in combination with other pressure sensors (such as sensor 154) to determine the efficiency of the in-line duct fan 160, a blockage of the sensor 162 exhaust manifold mount, and normalization and/ or calibration of other sensors.
    [0042] In various embodiments, controller 180 is optionally arranged to selectively couple one (or more, simultaneously) of uprights 182, 184, and 186 of pistol inlet 188. When inlet 182 is selected, the air volume of air (including airborne treatment substances, if applicable) from the environmentally sealed container 110 can be recirculated for the injection of additional airborne treatment substances into the environmentally sealed container. Recirculation through inlet 182, for example, extends the life of filter 150, and reduces the possibility that airborne substances (not captured by filter 150) can be released into the surrounding area.
    [0043] When inlet 184 is selected, exhaust air from filter 150 (including airborne treatment substances, if applicable) can be re-circulated for injection of additional treatment substances into the environmentally sealed tank. Using information from (pressure) sensors 132, 152, 154, 162, and 182, controller 180 can vary the pressure in selected areas. The pressure of the volumes measured by sensors 152, 154, and 162 can be controlled by selectively controlling the relative speeds of an inlet fan of gun 120 and fan 160.
    [0044] When the flow rate of fan 160 increases above the flow rate of the gun 120 fan, the air pressure between the 120 gun exhaust and the fan inlet is lowered. Thus, the pressures at the points measured by sensors 152, 154, and 162 can be reduced - even to pressures below ambient pressure (which can reduce the possibility of exfiltration of the treatment substances to ambient air). The pressure of the volumes measured by sensors 152, 154, and 162 can be controlled by selectively controlling the relative speeds of one or both between gun 120 or fan 160. To help maintain gun 120 and fan operation 160 within normal operating parameters, input 186 (for example) can be selectively open using a range of settings from fully open to fully closed. (In another exemplary embodiment, check valve 172 may be controlled in a similar manner).
    [0045] Recirculation through inlet 184 when the flow rate of gun 12 is increased above the flow rate of fan 160, and valve 172 is closed (through controller 180, or relative air pressures, for example), reduces the possibility of airborne substances (not captured by filter 150) being released into the surrounding area during a nebulization process.
    [0046] When intake 184 is selected, ambient air is used by gun 120 for the injection of airborne treatment substances into the environmentally sealed container. Fan 160 is used to drive airflow into the exhaust manifold, to direct airborne substances through filter 150, and to release filtered air through opening 170, as described above.
    [0047] Thus, the possibility of exfiltration of airborne substances from the environmentally sealed tank 110 is reduced, the possibility of exfiltration of airborne substances from parts of the exhaust manifold 140 and filter 150 is reduced, and the dispersion of substances airborne in the environmentally sealed tank 110 is distributed more evenly and according to distribution with the vent openings 142.
    [0048] FIG. 2 is an isometric view illustrating a filter system in accordance with the embodiments of the present disclosure. Filter system 200 includes a chamber 210 that has a width W (e.g., 16 inches), a height H (e.g., 25 inches), and a depth D (e.g., 20 inches). Inlet port 220 is arranged to accept an air stream 222, which contains airborne substances that must be filtered (eg. removed) by filter system 200. Thus, air stream 222 is coupled to chamber 210 through the inlet port 220, and after it has been filtered, as described below, is exhausted through exhaust port 250. Fan 260 is arranged to motivate a stream of air 222 to pass through filter chambers 210 through the evacuation of air (in varying degrees, as described above) from chamber 110 and exhausting the exhausted air in the form of air stream 272.
    [0049] Chamber 210 has a first filter stage 230 and a second filter stage 240. The first filter stage 230, in one embodiment, is a bank of six "3M" high particle rate fiber air filters (such as model number 1900 or 2200 and having dimensions of one inch deep by 20 inches wide by 25 inches high) that are arranged in series with respect to the air stream flow (so that the air stream passes through each fiber air filter in the bank in turn) The first filter stage 230 includes, for example, a series (bank) of pleated filters arranged to filter out visible airborne particles. Airborne particles typically include an active ingredient (Al) used to treat, for example, items 124 in an environmentally sealed container. The first filter stage 230 may include one or more individual filters arranged in a bank.
    [0050] The second filter stage 240 is an embodiment in a mesh filter (eg, 1.68 mm x 0.595 mm) of 12 x 30 column of activated carbon (with outer dimensions of two inches deep by 20 inches of depth). width by 25 inches high). The second stage of filter 240 is arranged to capture the volatile solvents and odor ("non-visible" aerial particles) present in the air stream 222. The second stage of filter 240 may include one or more individual filters arranged in a bank. .
    [0051] The effectiveness of the filter system 200 can be made by measuring the amount of incoming air, as well as measuring the quality of the outgoing air (e.g., filtered). In one embodiment, inspection ports 224 and 254 are respectively provided for, for example, sampling inlet air and outlet air. Inspection ports 224 and 254 are used to provide a substantially airtight opening, which is arranged to accept the sampling probe. For example, inspection ports 224 and 254 may each include a substantially sealed membrane through which a needle of syringes 226 and 256, respectively, are inserted. (The terms "substantially" sealed or hermetic are used, for example, to indicate the level at which the exfiltration of airborne substances, and/or air infiltration from the sampling ports would introduce an unacceptable level of error in the measurements .)
    [0052] Measurements regarding the quality of incoming air and outgoing air can be made by measuring and sampling the concentrations of active ingredient (AI) pre-filter (eg, through inspection port 224) and post- filter (eg through inspection port 254) Concentration measurements can be carried out by aerosol sampling at intervals starting at, for example, about five to ten minutes after the start of the nebulization process (which typically includes introduction of treatment substances in an environmentally sealed container 110, as described above). In an example embodiment, a first 60 ml syringe is used to withdraw a 50 ml sample through inspection port 224 (pre-filter) and a second 60 ml syringe is used to withdraw a 50 ml sample through the inspection port 254 (post-filter).
    [0053] A 50 ml sample can be taken by inserting a needle into an inspection port and the plunger being slowly pulled back (eg pulled up) to the 60 ml mark. After a 10 second delay, the plunger is depressed (eg pushed down) to the 50 ml mark. The syringe is pulled out of an inspection port and used to suck 5 mil of a solvent (such as analytical grade ethyl acetate) into the syringe. The aerosol sample and solvent are mixed, for example, by removing the syringe, closing the syringe outlet, and vigorously shaking the syringe for about 30 seconds. After a 15 second delay (while keeping the syringe vertically oriented with the outlet still capped), the plunger is depressed to release the liquid contents (including solvents and solutes) in sample vials. The active ingredient content of the liquid content in the sampling vials can be determined using a suitable method based on gas chromatography.
    [0054] Filter efficiency can be determined by comparing the highest concentration of AI in the pre-filter aerosol sample to the (usually lower) concentration of (if any) AI in a corresponding post-filter aerosol sample. For more accurate determinations, samples should be taken simultaneously (or substantially simultaneously) in comparison to the corresponding output sample. The determination can be expressed in accordance with:
    [0055] Cg = 100 X CL(I)
    [0056] where Cg is the concentration of Al in the aerosol (expressed in units of mg/m) and where CL is the concentration of Al in the liquid solution, as determined by gas chromatography measurement (expressed in units of mg/L or ppm).
    [0057] Table 1 is a summary of the capture efficiency gains of the various filters tested: TABLE 1

    [0058] FIG. 3 is a graphical diagram illustrating the efficiency of a "3M" filter bank used in a thermal fog filtration system, in accordance with embodiments of the present disclosure. Graph 300 includes a graph 310, which illustrates a percentage of gain weight of each "3M" filter from a filter bank (for example) used in an exemplary thermal fog filtration system, having a total "mist" application time of 45 minutes.
    [0059] Table 2 is a summary of the weight gain of the "3M" filters tested (due to airborne substances being captured by each filter, for example): TABLE 2

    [0060] Table 3 is a summary of an analysis of aerosol reduction in a thermal fog filtration system using tested "3M" filters: TABLE 3

    [0061] FIG. 4 is a graphical diagram illustrating the efficiency of a "3M well-sealed" filter bank used in a thermal fog filtration system, in accordance with embodiments of the present disclosure. Chart 400 includes a chart 410, which illustrates a percentage of the weight gain of each "3M well-sealed" filter from a filter bank (for example) used in an exemplary thermal fog filtration system, having a total application time. of "fog" of 135 minutes.
    [0062] Table 4 is a summary of weight gain of "3M well-sealed" filters tested (due to airborne substances being captured by each filter, for example): TABLE 4

    [0063] Table 5 is a summary of an analysis of aerosol reduction in a thermal fog filtration system using tested "3M well-sealed" filters: TABLE 5

    [0064] FIG. 5 is a graphical diagram illustrating the efficiency of a "cheap filter" filterbank used in a thermal fog filtration system, in accordance with embodiments of the present disclosure. Chart 500 includes a chart 510, which illustrates a percentage of the weight gain of each "cheap" filter from a filter bank (for example) used in an exemplary thermal fog filtration system, having a total application time of " mist" of 15 minutes.
    [0065] Table 6 is a summary of the weight gain of the "cheap" filters tested (due to airborne substances being captured by each filter, for example): TABLE 6

    [0066] Table 7 is a summary of an analysis of aerosol reduction in a thermal fog filtration system using tested "cheap" filters: TABLE 7

    [0067] FIG. 6 is a graphical diagram illustrating the efficiency of a "reusable" filterbank used in a thermal fog filtration system, in accordance with embodiments of the present disclosure. Chart 600 includes a chart 610, which illustrates a percentage of the weight gain of each "reusable" filter from a filter bank (for example) used in an exemplary thermal fog filtration system, reading a total application time of " fog" of 165 minutes.
    [0068] Table 8 is a summary of the weight gain of the "reusable" filters tested (due to airborne substances being captured by each filter, for example): TABLE 8

    [0069] Table 9 is a summary of an analysis of an aerosol reduction in a thermal fogging system using tested "reusable" filters. TABLE 9

    [0070] FIG. 7 is a graphical diagram illustrating the efficiency of a "cheap (2nd test)" filterbank used in a thermal fog filtration system, in accordance with embodiments of the present disclosure. Chart 700 includes a chart 710, which illustrates a percentage of the weight gain of each "cheap (2nd test)" filter from a filter bank (for example) used in an exemplary thermal fog filtration system, taking a time. 152 minutes total mist application.
    [0071] Table 10 is a summary of the weight gain of the "cheap (2nd test)" filters tested (due to airborne substances being captured by each filter, for example): TABLE 10

    [0072] Table 11 is a summary of an analysis of aerosol reduction in a thermal fog filtration system using tested "cheap (2nd test)" filters: TABLE 11

    [0073] FIG. 8 is a graphic diagram illustrating the effectiveness of a filter bank of "reusable filters pre-treated with propylene glycol" (PG) used in a thermal fog filtration system, according to modalities of the present disclosure. Chart 800 includes a chart 810, which illustrates a percentage of the weight gain of each "PG-pretreated reusable filter" from a filter bank (for example) used in an exemplary thermal fog filtration system, having a time. total "mist" application of 165 minutes.
    [0074] Table 12 is a summary of the weight gain of the "PG-pretreated reusable filters" tested (due to airborne substances being captured by each filter, for example): TABLE 12

    [0075] Table 13 is a summary of an analysis of an aerosol reduction in a thermal fogging system using tested "PG pretreated reusable" filters: TABLE 13

    [0076] The effectiveness of a "six inch activated carbon" filter used in a thermal fog filtration system, in accordance with embodiments of the present disclosure, is now discussed. Tables 14 and 15 illustrate the measurements taken when using a "six inch activated carbon" filter (for example) used in an exemplary thermal fog filtration system having a fog application time of 125 minutes.
    [0077] Table 14 is a summary of the weight gain of the "six inch activated carbon" filters tested (due to airborne substances being captured by each filter, for example): TABLE 14

    [0078J Table 15 is a summary of an analysis of aerosol reduction in a thermal fog filtration system using tested "six inch activated carbon" filters: TABLE 15

    [0079] The effectiveness of a "six inch (pretreated) activated carbon" filter used in a thermal fog filtration system, in accordance with embodiments of the present disclosure, is now discussed. The six inch activated carbon filter was pretreated with a 10% PG solution. Tables 16 and 17 illustrate the measures taken when using a "six inch (pretreated) activated carbon" filter (for example) used in an exemplary thermal fog filtration system having a fog application time of 125 minutes.
    [0080] Table 16 is a summary of the weight gain of "six-inch (pre-treated)" filters using pre-tested filters (due to airborne substances being captured by each filter, for example): TABLE 16

    [0081] Table 17 is a summary of an analysis of aerosol reduction in a thermal fog filtration system using tested "six inch activated carbon (pretreated)" filters: TABLE 17

    [0082] FIG. 9 is a graphical diagram illustrating the efficiency of a "carbon/fiber (untreated) filter" filterbank used in a technical mist filtration system, in accordance with embodiments of the present disclosure. Chart 900 includes a chart 910, which illustrates a percentage gain weight of each "carbon/fiber (untreated) filter" filter of a filter bank (for example) used in an exemplary thermal fog filtration system , having a total mist application time of 125 minutes.
    [0083] Table 18 is a summary of the weight gain of the "carbon/fiber (untreated) filter" filters tested (due to airborne substances being captured by each filter, for example): TABLE 18

    [0084] Table 19 is a summary of an analysis of aerosol reduction in a thermal fog filtration system using tested "carbon/fiber filter (untreated)" filters: TABLE 19

    [0085] FIG. 10 is a graphical diagram illustrating the efficiency of a "carbon/fiber (10% PG)" filterbank used in a thermal fog filtration system, in accordance with embodiments of the present disclosure. Chart 1000 includes a 1010 chart that illustrates a percentage gain weight of each "carbon/fiber filter (10% PG)" filter of a filter bank (for example) used in a thermal fog filtration system exemplary, having a total mist application time of 125 minutes.
    [0086] Table 20 is a summary of the weight gain of the "carbon/fiber filter (10% PG)" filters tested (due to airborne substances being captured by each filter, for example): TABLE 20

    [0087] Table 21 is a summary of an analysis of aerosol reduction in a thermal fog filtration system using "carbon/fiber filter (10% PG)" filters tested: TABLE 21

    [0088] FIG. 11 is a graphical diagram illustrating the efficiency of a "3M Filter (2nd Test)" filterbank used in a thermal fog filtration system, in accordance with embodiments of the present disclosure. Chart 1100 includes a chart 1110, which illustrates a percentage of the weight gain of each "3M (Second Test)" filter from a filter bank (for example) used in an exemplary thermal fog filtration system, having a total time. of 140-minute "mist" application.
    [0089] Table 22 is a summary of the weight gain of the "3M filter (2nd Test)" filter tested (due to airborne substances being captured by each filter, for example): TABLE 22

    [0090] Table 23 is a summary of the analysis of aerosol reduction in a thermal fog filtration system using "3M Filter (2nd Test)" filters: TABLE 23

    [0091] FIG. 12 is a graphical diagram illustrating the efficiency of a "3M (wash and dry)" filterbank used in a thermal fog filtration system, in accordance with embodiments of the present disclosure; Chart 1100 includes a chart 1110, which illustrates a percentage of the weight gain of each "3M (wash and dry)" filter from a filter bank (for example) used in an exemplary thermal fog filtration system, having a time. 125 minutes total "mist" application.
    [0092] Table 24 is a summary of the weight gain of the "3M filter (washed and dry)" filter tested (due to airborne substances being captured by each filter, for example): TABLE 24

    [0093] Table 25 is a summary of an analysis of aerosol reduction in a thermal fog filtration system using "3M filter (wash and dry)" filters tested: TABLE 25

    [0094] FIG. 13 is a graphical diagram illustrating the efficiency of a filter bank of "two inexpensive filters and four 3TvT filters used in one in a thermal fog filtration system, in accordance with embodiments of the present disclosure. Graph 1300 includes a graph 1310 , which illustrates a percentage of the weight gain of each "two cheap filters and four 3M filters" filter from a filter bank (for example) used in an exemplary thermal fog filtration system, having a total "mist application time" " of 125 minutes.
    [0095] Table 26 is a summary of the weight gain of the two "cheap filters and four 3M filters" tested (due to airborne substances being captured by each filter, for example): TABLE 26

    [0096] Table 27 is a summary of an analysis of aerosol reduction in a thermal fog filtration system using "two inexpensive filters and four 3M filters" tested: TABLE 27

    [0097] FIG. 14 is a graphical diagram illustrating the efficiency of a filterbank of "two inexpensive filters and four 3M filters (reused)" used in one in a thermal fog filtration system, in accordance with embodiments of the present disclosure. The 1400 Graph includes a 1410 graph that illustrates a percentage of the weight gain of each filter "two inexpensive filters and four 3M filters (reused)" from a filter bank (for example) used in an exemplary thermal fog filtration system, having a total "mist" application time of 125 minutes.
    [0098] Table 28 is a summary of the weight gain of "two inexpensive filters and four 3M filters (reused)" using pre-tested filters (due to airborne substances being captured by each filter, for example): TABLE 28

    [0099] Table 29 is a summary of an analysis of aerosol reduction in a thermal fog filtration system using "two inexpensive filters and four 3M (reused) filters" tested: TABLE 29

    [00100] FIG. 15 is a graphical diagram illustrating the efficiency of a filterbank of "20x25 (new) 3M filters" used in a thermal fog filtration system, in accordance with embodiments of the present disclosure. Chart 1500 includes a 1510 chart that illustrates a percentage of the weight gain of each "20x25 3M (new)" filter from a filter bank (for example) used in an exemplary thermal fog filtration system, having a total time. 125 minutes of "mist" application.
    [00101] Table 30 is a summary of the weight gain of the "20x25 (new) 3M filters" filters tested (due to airborne substances being captured by each filter, for example): TABLE 30

    [00102] Table 31 is a summary of the aerosol reduction analysis in a thermal fog filtration system using tested "20x25 (new) 3M filters" filters: TABLE 31

    [00103] FIG. 16 is a graphical diagram illustrating the efficiency of a "3M" filterbank used in a thermal fog filtration system, in accordance with embodiments of the present disclosure. The 1600 Graph includes a 1610 graph that illustrates a percentage of the weight gain of each "20x25 3M (reused)" filter from a filter bank (for example) used in an exemplary thermal fog filtration system, having a total time. 100-minute "mist" application time.
    [00104] Table 32 is a summary of the weight gain of the "3M 20x25 (new) filters" filters tested (due to airborne substances being captured by each filter, for example): TABLE 32

    [00105] Table 33 is a summary of the aerosol reduction analysis in a thermal fog filtration system using tested "20x25 (reused) 3M filters" filters: TABLE 33

    [00106] The effectiveness of a 20x20x6 "activated carbon (large granules)" filter used in a thermal fog filtration system, in accordance with embodiments of the present disclosure is now discussed. Tables 34 and 35 illustrate the measures taken when using a 20x20x6 "activated carbon (large granules)" filter (for example) used in an exemplary thermal fog filtration system having a fog application time of 125 minutes.
    [00107] Table 34 is a summary of the weight gain of the "activated carbon (large granules) 20x20x6" filters tested (due to airborne substances being captured by each filter, for example): TABLE 34

    [00108] Table 35 is a summary of an aerosol reduction analysis in a thermal fog filtration system using 20x20x6 "activated carbon (large granules)" filters tested: TABLE 35

    [00109] The effectiveness of a 20x20x12 "activated carbon (large granules) filter used in a thermal fog filtration system, in accordance with embodiments of the present disclosure is now discussed. Tables 36 and 37 illustrate the measures taken when using a 20x20x12 "activated carbon (large granules) filter (for example) used in an exemplary thermal fog filtration system having a fog application time of 205 minutes.
    [00110] Table 36 is a summary of the weight gain of the "activated carbon (large granules) 20x20x12" filters tested (due to airborne substances being captured by each filter, for example): TABLE 36

    [00111] Table 37 is a summary of an analysis of aerosol reduction in a thermal fog filtration system using 20x20x12 "activated carbon (large granules)" filters tested: TABLE 37

    [00112] FIG. 17 is a graphical diagram illustrating the efficiency of a "20x25 3M (1900 EcoFOG 11)" filterbank used in a thermal fog filtration system, in accordance with embodiments of the present disclosure. The 1700 Graph includes a 1710 graph, which illustrates a percentage of the weight gain of each "20x25 3M (1900 EcoFOG 11)" filter from a filter bank (for example) used in an exemplary thermal fog filtration system, having a total "mist" application time of 125 minutes.
    [00113] Table 38 is a summary of the weight gain of the "3M filters 20x25 (1900 EcoFOG 11)" filters tested (due to airborne substances being captured by each filter, for example): TABLE 38

    [00114] Table 39 is a summary of the aerosol reduction analysis in a thermal fog filtration system using "20x25 (1900 EcoFOG 11)" filters tested: TABLE 39

    [00115] FIG. 18 is a graphical diagram illustrating the efficiency of a "20x25 3M (1900 DP A Melted)" filterbank used in a thermal fog filtration system, in accordance with embodiments of the present disclosure. Graph 1800 includes an 1810 graph, which illustrates a percentage of the weight gain of each "3M 20x25 (1900 DP A Melted)" filter from a filter bank (for example) used in an exemplary thermal fog filtration system, having a total "mist" application time of 125 minutes.
    [00116] Table 40 is a summary of the weight gain of the "20x25 3M filters (1900 DP A Melted)" filters tested (due to airborne substances being captured by each filter, for example): TABLE 40

    [00117] Table 41 is a summary of the aerosol reduction analysis in a thermal fog filtration system using "20x25 (1900 DP A Melted)" filters tested: TABLE 41

    [00118] FIG. 19 is a graphical diagram illustrating the efficiency of a "20x25 3M (1900 EcoFOG 100 new)" filterbank used in a thermal fog filtration system, in accordance with embodiments of the present disclosure. The 1900 Graph includes a 1910 graph, which illustrates a percentage of the weight gain of each "20x25 3M (1900 EcoFOG 100 new)" filter from a filter bank (for example) used in an exemplary thermal fog filtration system, having a total "mist" application time of 119 minutes.
    [00119] Table 42 is a summary of the weight gain of the "20x25 3M filters (1900 EcoFOG 100 new)" filters tested (due to airborne substances being captured by each filter, for example): TABLE 42

    [00120] Table 43 is a summary of the aerosol reduction analysis in a thermal fog filtration system using "20x25 3M filters (1900 EcoFOG 100 new)" filters tested: TABLE 43

    [00121] FIG. 20 is a graphical diagram illustrating the efficiency of a "20x25 3M (1900 EcoFOG 100 new)" filterbank used in a thermal fog filtration system, in accordance with embodiments of the present disclosure. The 1900 Graph includes a 1910 graph, which illustrates a percentage of the weight gain of each "20x25 3M (1900 EcoFOG 100 new)" filter from a filter bank (for example) used in an exemplary thermal fog filtration system, having a total "mist" application time of 65 minutes in a first room, and 80 in a second room.
    [00122] Table 44 is a summary of the weight gain of the filters "3M 20x25 filters (1900 EcoFOG 100 new)" after being used to filter the two rooms (sequentially): TABLE 44

    [00123] Table 45 is a summary of the aerosol reduction analysis in a thermal fog filtration system using "20x25 3M filters (1900 EcoFOG 100 new)" filters tested in a first room: TABLE 45

    [00124] Table 46 is a summary of the aerosol reduction analysis in a thermal fog filtration system using "20x25 3M filters (1900 EcoFOG 100 new)" filters tested in a second room: TABLE 46

    [00125] FIG. 21 is a graphical diagram illustrating the efficiency of a filterbank of "six new 3M filters (EcoFOG 160)" used in a thermal fog filtration system, in accordance with embodiments of the present disclosure. Chart 2100 includes a chart 2110, which illustrates a percentage of the weight gain of each filter "six new 3M filters (EcoFOG 160)" from a filter bank (for example) used in an exemplary thermal fog filtration system, having a total "mist" application time of 118 minutes.
    [00126] Table 47 is a summary of the weight gain of the "six new 3M filters (EcoFOG 160)" filters tested (due to the substances that are captured by each filter, for example): TABLE 47

    [00127] Table 48 is a summary of an analysis of aerosol reduction in a thermal fog filtration system using tested "six new 3M filters (EcoFOG 160)" filters: TABLE 48

    [00128] FIG. 22 is a graphic diagram illustrating the efficiency of a filter bank of "20x25 3M filters (2200 plus two inches of EcoFOG 160 2L carbon)" used in a thermal fog filtration system, according to modalities of the present disclosure . Chart 2200 includes a chart 2210, which illustrates a percentage of the weight gain of each "3M 20x25 (2200 plus two inches of EcoFog 160 2L)" filter weight gain of a filter bank (for example) used in a system. of exemplary thermal mist filtration, having a total "mist" application time of 125 minutes.
    [00129] Table 49 is a summary of weight gain of the filters "3M 20x25 filters (2200 plus two inches of activated carbon EcoFOG 160 2L)" tested: TABLE 49

    [00130] FIG. 23 is a graphic diagram illustrating the efficiency of a filter bank of "20x25 3M filters (2200 plus two inches of activated carbon EcoFOG 160 2L)" used in a thermal fog filtration system, according to the modalities of the present disclosure. Chart 2300 includes a chart 2310, which illustrates a percentage of the weight gain of each filter "3M 20x25 (2200 plus two inches of activated carbon EcoFog 160 2L)" of a filter bank (for example) used in a system of exemplary thermal mist filtration, having a total "mist" application time of 125 minutes.
    [00131] Table 50 is a weight gain summary of the filters "20 x 25 3M filters (2200 plus two inches of activated carbon EcoFOG 160 2L)" tested (due to substances being captured by each filter, for example ): TABLE 50

    [00132] Table 51 is a summary of an analysis of aerosol reduction in a thermal fog filtration system using 20x25 filters (2200 plus two inches of activated carbon EcoFOG 160 2L) tested: TABLE 51

    [00133] The various exemplary embodiments described above are provided for illustrative purposes only and are not to be construed as limiting with respect to the claims appended herein. Those skilled in the art will readily recognize various modifications and changes that could be made without following the exemplary modalities and applications illustrated and described herein, and without departing from the true spirit and scope of the following claims.
    权利要求:
    Claims (8)
    [0001]
    1. A filtration system, characterized in that it comprises: an enclosed room that is arranged to hold items for treatment in a volume of air; an air flow substance infuser that is arranged for the treatment of substances in a flow of air. air to generate airborne treatment substances and which is arranged to introduce the air flow and airborne treatment substances into a closed room air volume to generate dispersed airborne substances; a first filter coupled between a port an exhaust air stream of the closed room and an exhaust opening which is arranged to receive an exhaust air stream flowing from the closed room, wherein the exhaust air stream includes a received portion of airborne substances, and wherein the first filter is arranged to capture a part of a received part of the airborne substances coupled from the closed room; a fan which is coupled in series with the first filter between the closed room exhaust port and the exhaust port, wherein the fan is arranged to induce the flow of an exhaust air stream from the closed room to the exhaust port; a second filter which is coupled between the first filter and the fan; and, an exhaust manifold that is arranged to receive airborne substances dispersed in a volume of closed room air and to couple the exhaust air stream to the fan, where the first filter includes a first filter bank that is arranged to capture an active ingredient from airborne substances and the second filter is arranged to capture organic solvents from airborne substances
    [0002]
    2. System according to claim 1, characterized in that: (i) the exhaust manifold inlet is arranged with the items to be treated interposed between the exhaust manifold inlet and the infuser of air flow substances ; or, (ii) the exhaust manifold inlet includes multiple spaced-apart vent holes that are arranged to aid in the dispersion of airborne treatment substances.
    [0003]
    3. System according to claim 1, characterized in that it further comprises a controller arranged to control the pressure of the closed room.
    [0004]
    4. System according to claim 3, characterized in that the controller is adapted to control the pressure of the closed room, selectively varying the relative speed of an air flow substances infuser fan and the speed of the fan that is coupled in series with the first filter between the closed room exhaust port and the exhaust opening.
    [0005]
    5. System according to claim 4, characterized in that the controller is arranged to select from the use of unfiltered air from the exhaust manifold as input to the air flow substance infuser, select from filtered air of the exhaust manifold as an inlet to the air flow substances infuser, and to select from the use of ambient air.
    [0006]
    6. Method of filtration, characterized in that it comprises using the filtration system defined in claim 1 and includes the following steps: arrange the items to be treated in a closed room, with a volume of air; infuse the treatment substances in the air flow to generate airborne treatment substances. introduce the airflow and airborne treatment substances into a closed room air volume to generate dispersed airborne substances. Induce a stream of exhaust air flowing from the closed room to the room exhaust port closed, wherein the exhaust air stream includes a portion received from the airborne substances; ecapture of a part of the received part of the coupled airborne substances from the exhaust port.
    [0007]
    7. Method according to claim 6, characterized in that it comprises the selection among: using unfiltered air from the exhaust port as an inlet to the airborne substances infuser, which is arranged to infuse the substances of airflow treatment; use filtered air from the exhaust port as an inlet to the airflow substance infuser; and, use ambient air.
    [0008]
    8. Method according to claim 7, characterized in that it comprises controlling the closed room pressure by selectively varying the relative speed of the air flow substance infuser fan and the speed of the fan used to induce the current of exhaust air through the first filter used to capture the captured portion of the airborne substances.
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    同族专利:
    公开号 | 公开日
    EP2879771A4|2016-03-16|
    MX367810B|2019-09-06|
    AU2013296601A1|2015-02-19|
    AU2013296601B2|2017-08-31|
    US20160353759A1|2016-12-08|
    MX2015001560A|2015-09-29|
    EP2879771B1|2019-03-13|
    BR112015002349A2|2017-07-04|
    CA2880243A1|2014-02-06|
    US20160360767A1|2016-12-15|
    CL2015000246A1|2015-06-12|
    US9961912B2|2018-05-08|
    TR201904221T4|2019-05-21|
    US20160073649A1|2016-03-17|
    US9433227B2|2016-09-06|
    AR091973A1|2015-03-11|
    ES2717926T3|2019-06-26|
    US20170049118A1|2017-02-23|
    US20140033926A1|2014-02-06|
    PL2879771T3|2019-06-28|
    US10258056B2|2019-04-16|
    CA2880243C|2020-03-24|
    ZA201500684B|2016-08-31|
    WO2014022460A1|2014-02-06|
    EP2879771A1|2015-06-10|
    US9961913B2|2018-05-08|
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    法律状态:
    2018-03-06| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2018-03-13| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2018-03-20| B06I| Publication of requirement cancelled [chapter 6.9 patent gazette]|Free format text: ANULADA A PUBLICACAO CODIGO 6.6.1 NA RPI NO 2462 DE 13/03/2018 POR TER SIDO INDEVIDA. |
    2019-10-08| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-04-06| B07A| Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]|
    2021-08-03| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-08-24| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 31/07/2013, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US13/566936|2012-08-03|
    US13/566,936|US20140033926A1|2012-08-03|2012-08-03|Filtration System|
    PCT/US2013/052826|WO2014022460A1|2012-08-03|2013-07-31|Filtration system|
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