• 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:
    The invention relates to a method for determining the degree of fouling of at least one filter of a ventilation and / or air treatment system comprising the following steps: A. Selection of at least one filter to be analyzed B Determination of the theoretical filtration capacity of the filter selected in step A, as a function of the theoretical efficiency of the filter and the maximum amount of dust that the filter can retain theoretically. C. Collection of pollution data from at least one air entering the ventilation system and passing through the selected filter, D. Measuring the flow rate of air entering the ventilation system, E. Calculating the amount of dust selected by the at least one selected filter, from the air pollution data entering from step C and the measurement of the incoming air flow from step D, F. Repeating step E to every step of time t. G. Determination of the amount of accumulated dust retained by the filter selected from the results of steps E and FH Determination of the fouling rate of the selected filter by comparing the amount of cumulative dust determined in step G with the theoretical capacity of the filter determined in step B.
    公开号:FR3031800A1
    申请号:FR1550460
    申请日:2015-01-21
    公开日:2016-07-22
    发明作者:Serge Buseyne；Damien Labaume
    申请人:Aldes Aeraulique SA；
    IPC主号:
    专利说明:

    [0001] The present invention relates to the field of building ventilation systems and more particularly the ventilation systems equipped with air filters. Classically buildings are ventilated for reasons of conservation of buildings and evacuation of pollution, the pollution being generated by the occupants, the equipment and machinery present in the building and building materials. The principle of ventilation is to create a renewal of the air, by moving in a closed place. In this case, ventilation of a building is to renew the indoor air by bringing in outside air and / or by recycling indoor air. In the present application, external air will be understood to mean air coming from outside the building. In addition, indoor air is understood to mean the ambient air present in the building. Renewing air, known as incoming air, is generally filtered to ensure good air quality in the building. Most ventilation and / or air handling systems have filters either at an air handling unit for the outdoor and / or indoor air systems or at each inlet port. air or even at each air outlet mouth. There are several known ways to detect the fouling of a filter. The first solution is to add a pressure switch in the ventilation system so that it measures the pressure on both sides of the filter. When the pressure increases and reaches a predetermined threshold, the filter is considered fouled. The advantage of this solution lies in the fact that the fouling information can be immediately transmitted, but this solution does not allow to anticipate maintenance interventions. Another solution is to use a factory preset timer. This timer displays an error message when the theoretical fouling time has come to an end. This solution is the least expensive because it sets up an identical system for all filters and does not require individual logistics. However, this solution does not allow to know the fouling state of the filter in a real way. Indeed, the fouling depends in particular pollution whose rate varies over time, while the solution provided is based on a period of theoretical expiry calculated on an invariable theoretical pollution. Thus, the error message can occur even if the filter is not dirty or after said filter has become dirty. The object of the invention is to remedy all or some of the aforementioned drawbacks.
    [0002] The subject of the invention is a method for determining the degree of fouling of at least one filter of a ventilation and / or air treatment system comprising the following steps: A. Selection of at least one filter analyze B. Determination of the theoretical filtration capacity of the filter 10 selected in step A, as a function of the theoretical efficiency of the filter and the maximum amount of dust that can retain the filter theoretically. C. Collection of pollution data from at least one air entering the ventilation system through the selected filter, D. Measurement of the air flow entering the ventilation system, E. Calculation of the amount of dust retained by the at least one selected filter, from the air pollution data entering from step C and the measurement of the incoming air flow from step D, F. Repeating step E for each time step t. G. Determination of the amount of cumulative dust retained by the selected filter from the results of steps E and FH Determination of the fouling rate of the selected filter by comparing the amount of cumulative dust determined in step G with the theoretical capacity of the filter determined in step B. The invention has the advantage of calculating at each time step t the amount of dust retained by the selected filter, which makes it possible to follow the evolution of the fouling of said selected filter and of know when to change the filter appropriately. Thus, one can know and even anticipate clogging filters, since at any time, it is possible to know their fouling rate. It is also possible from the fouling rate data to make a prediction based on past and future use. According to another characteristic of the invention, said determination method comprises an additional step C1 for measuring pollution data, said step C1 being carried out before the collecting step C. Preferably, the pollution data measurement of step C1 is performed by at least one pollution sensor of the ventilation system.
    [0003] According to another characteristic of the invention, in the case where the incoming air is outside incoming air, step C1 can be carried out either by a weather station or by an organization specialized in the measurement of pollution or by least a pollution sensor.
    [0004] According to another characteristic of the invention, the determination method comprises a step I of displaying the fouling rate determined in step H. Thus, the user can visually follow the evolution of the fouling rate of the filter (s). ventilation system. According to another characteristic of the invention, said determination method comprises a step J of alerting the fouling rate of the at least one filter of the ventilation system. Step J warns the user of the need to change the dirty filter (s). According to one characteristic of the invention, said determination method comprises a step J1 prior to the warning step J, said step J1 being a step 15 for comparing the degree of fouling determined in step H with a rate of threshold fouling, when the determined fouling rate is lower than the threshold fouling rate, step J is not implemented, when the determined fouling rate is greater than or equal to the threshold fouling rate then step J is implemented. Advantageously, the threshold fouling rate corresponds to the level of fouling considered as maximum for the at least one filter. According to another characteristic of the invention, the alarm of the fouling rate of step J is a visual alert. According to another characteristic of the invention, the determination method further comprises a step K of preventive alert. Said step K allows the user to know that a filter replacement is to be considered. According to one characteristic of the invention, the determination method further comprises a step K1 for comparing the degree of fouling determined in step H with a prevention level of fouling rate, when the determined fouling rate is less than the rate of fouling prevention threshold, step K is not implemented, when the fouling rate determined is greater than or equal to the rate of fouling prevention threshold then step K is implemented . Advantageously, the step K1 is carried out before the step J1, the rate of fouling prevention threshold being lower than the rate of fouling threshold.
    [0005] According to one characteristic of the invention, step K is carried out after step Ki and before step JI. According to one characteristic of the invention, the determination method operates continuously in order to determine the fouling of each selected filter. .
    [0006] According to another characteristic of the invention, steps C and D are carried out consecutively, step C being performed before or after step D. Alternatively, steps C and D are carried out simultaneously. According to another characteristic of the invention, the incoming air is outside air.
    [0007] According to another characteristic of the invention, the incoming air is indoor air. The invention also relates to a ventilation and / or air treatment system in a building configured to implement the method for determining the level of fouling of at least one filter according to the invention, said system for ventilation and / or air treatment comprising: - at least one air inlet - at least one air outlet, - an element for determining the flow rate of the incoming air, - at least one filter positioned at the level of the at least one air inlet, said filter being arranged to be traversed by an incoming air; a unit for controlling the fouling rate of the at least one filter, the control unit comprising a calculator configured to determine the rate of fouling of the at least one filter from data of pollution of the incoming air, the flow rate of the incoming air, and the theoretical capacity of the filter. According to a feature of the invention, said ventilation system and / or air treatment comprises at least one air pollution sensor, said pollution sensor cooperating with the control unit of the ventilation system and / or treatment air. According to one characteristic of the invention, the at least one pollution sensor is positioned outside the building and is configured to measure the pollution of outside incoming air. According to another characteristic of the invention, the at least one pollution sensor is positioned inside the building and is configured to measure the pollution of an internal incoming air, corresponding to the air extracted from one or more 35 parts of the building.
    [0008] According to another characteristic of the invention, the fouling rate control unit further comprises a display member configured to display the fouling rate of the at least one selected filter. Thus, the user can follow the evolution of the fouling rate of each of the filters of the ventilation system.
    [0009] According to a characteristic of the invention, the fouling rate control unit comprises a comparator configured to compare the determined fouling rate with a threshold fouling rate or with a prevention threshold fouling rate, said comparator cooperates with an analysis unit of the control unit, the analysis unit being configured to derive information from the comparator a maintenance alert which can relate for example to the change of the filter selected in a mandatory manner or in a manner preventive. According to one characteristic of the invention, the maintenance alerts issued by the control unit are displayed by the display member.
    [0010] According to one characteristic of the invention, the ventilation system comprises at least one airflow regulator positioned at the at least one air inlet and / or the at least one air outlet. According to one characteristic of the invention, the at least one regulator comprises a flowmeter, which makes it possible to determine the external incoming air flow rate and / or the incoming air flow rate inside. In other words and according to a characteristic of the invention, the input air flow determining element is at least one regulating element equipped with a flowmeter. According to another characteristic of the invention, the at least one regulator is controlled by a control unit of the ventilation system. According to another characteristic of the invention, the ventilation system comprises at least one external incoming air and / or incoming air fan. According to a characteristic of the invention, the incoming air flow rate is obtained from a feedback of at least one external incoming air and / or incoming air fan inside the unit of control of the fouling rate. In other words and according to a characteristic of the invention, the input air flow determining element is at least one fan of the ventilation system. The invention will be better understood from the following description, which refers to embodiments according to the present invention, given by way of non-limiting example and explained with reference to the appended diagrammatic drawings, in which: FIG. FIG. 1 schematically illustrates a ventilation system according to the invention according to a first embodiment, associated with at least one part of a building, FIG. 2 diagrammatically illustrates a ventilation system according to the invention according to a second embodiment, associated with several rooms and / or housing of a building, Figure 3 schematically illustrates a ventilation system according to the invention according to a third embodiment, associated with a room of a building. In the present application, the ventilation system and / or air treatment 1 is called hereinafter ventilation system 1. The first embodiment of the ventilation system 1 is shown in Figure 1. In the first embodiment , the ventilation system 1 is a dual flow system. In the example illustrated in FIG. 1, the ventilation system is associated with a room 101 of a building 100. The ventilation system 1 according to the first embodiment comprises an outside air intake opening 9, a internal air intake port 8, and at least a first air outlet opening 10 opening into the room 101, and a second air outlet opening 11 opening outside the building 100. A first filter 7 is positioned at the outside air intake port 9. A second inlet air filter 6 is positioned at the interior air inlet mouth 8. Outside air entering Fext and the incoming internal air Fint are led to the first air outlet 10 or the second air outlet 11 by means of the fans 13. Preferably, the incoming air flow is given by a return of information of fans 13. In a variant not shown, the system of ventilation may include one or more regulators equipped with a flow meter.
    [0011] In FIG. 1, the ventilation system 1 is equipped with an outdoor pollution sensor 5 and an indoor pollution sensor 4. Of course, the ventilation system 1 may comprise, according to the invention, a plurality of outdoor pollution sensors. 5 and / or a plurality of indoor pollution sensors 4. As represented in FIG. 1, the ventilation system 1 further comprises a fouling rate control unit 2. Said control unit for the fouling rate 2, is configured to determine the fouling rate of the incoming air filters 7, 6, of the ventilation system 1. The fouling rate control unit 2 comprises a display member 3 configured to alert and display the rate fouling each filter 7, 6. In the example illustrated in Figure 1, the fouling rate control unit 2 and the display member 3 are dissociated. This example is not limiting and the display member 3 could be structurally integrated with the control unit of the fouling rate 2 alternatively and according to the invention. The determination of the fouling rate of an incoming air filter is carried out as follows. The filter to be analyzed is, for example, the external incoming air filter 7. The theoretical efficiency of the external incoming air filter 7 and the maximum quantity of dust that can be retained by the external incoming air filter 7 theoretically are pre-recorded. in the control unit of fouling rate 2 or known and standard. The theoretical filtration capacity of the selected filter 7 is determined from the theoretical efficiency of the external incoming air filter 7 and the maximum amount of dust that can be retained by the external incoming air filter 7 theoretically. The outdoor pollution sensor 5 measures the external pollution at a time t in ug / m3 and the outdoor pollution data are collected by the fouling rate control unit 2. The fans 13 measure the external incoming air flow rate in m3 / h and transmit the information to the control unit of the fouling rate 2. The fouling rate control unit 2 then calculates from the collected data (external air pollution and flow rate external incoming air) the amount of dust in ug / m3 passing through the external incoming air filter 7. Then, the control unit of the fouling rate 2 determines the fouling rate of the air filter incoming external 7 by calculating the amount of dust retained by the filter on a time step t and summing this amount to that already retained by the previously calculated filter. The amount of accumulated dust is compared with the theoretical capacity of the filter determined in a previous step.
    [0012] The determination of the degree of fouling of the indoor air intake filter 6, is carried out according to the same method, the difference relating to the measurement of the indoor air flow rate and the indoor pollution data transmitted by the indoor pollution sensor 4 The second embodiment of the ventilation system 1 is shown in FIG. 2. In the second embodiment, the ventilation system 1 is a single flow system of several rooms 101 of the same building 100. This embodiment can also be used for the collective dwellings of a building 100. In the second embodiment, each part 101 comprises an extraction mouth corresponding to an inlet inlet air inlet interior 8 at which a filter d incoming air 6 is positioned. The ventilation system 1 further comprises an indoor pollution sensor 4 per room 101. The ventilation system 1 also comprises a fouling rate monitoring unit 2 cooperating with each indoor pollution sensor 4 in order to determine the rate of pollution. In addition, the ventilation system 1 comprises a regulating member 12 for each inlet air inlet mouth 8. Each regulating member 12 is equipped with a flowmeter. . The determination of the fouling rate of an internal air intake filter 6 is carried out as described in the first embodiment. Using the indoor pollution data of the pollution sensor 4 of the room 101 in which the filter 6 and the airflow data measured by the regulator 12 of the associated room 101 are located. The third embodiment of the ventilation system 1 is shown in FIG. 3. In the third embodiment, the ventilation system 1 is a simple flow system for a room 101 of a building 100. This embodiment can be used both for collective dwellings and for individual dwellings. In the third embodiment, the workpiece 101 includes an extraction mouth corresponding to an external incoming air intake mouth 9 at which an incoming air filter 7 is positioned. The ventilation system 1 25 further comprises an outdoor pollution sensor 5. The ventilation system 1 also comprises a fouling rate monitoring unit 2 cooperating with the outdoor pollution sensor 5 in order to determine the fouling rate of the Incoming external air filter 7. In addition, the ventilation system 1 comprises a regulating member 12 for the extraction mouth 8. The regulating member 12 is equipped with a flow meter. The determination of the fouling rate of an external incoming air filter 7 is carried out as described in the first embodiment. Using the outdoor pollution data of the outdoor pollution sensor 5 of the room 101 in which the filter 7 and the airflow data measured by the regulator 12 of the room 101 are located or by return of fan information 13.
    [0013] In first variant of the first embodiment and the third embodiment, the outdoor pollution is measured by a weather station. In a second variant of the first embodiment and the third embodiment, the external pollution is measured by an outside body and the pollution data are made available and collected via the Internet for example by the control unit of the rate of pollution. 2. As a variant of any of the embodiments, the air flow measurement is performed by a measuring element other than the regulator equipped with a flow meter, for example the fan 13.
    [0014] Of course, the invention is not limited to the embodiments described and shown in the accompanying figures. Modifications are possible, particularly from the point of view of the constitution of the various elements or by substitution of technical equivalents, without departing from the scope of protection of the invention.
    权利要求:
    Claims (10)
    [0001]
    REVENDICATIONS1. A method for determining the degree of fouling of at least one filter 5 of a ventilation and / or air treatment system comprising the following steps: A. Selection of at least one filter to be analyzed B. Determination of the theoretical filtration capacity of the filter selected in step A, as a function of the theoretical efficiency of the filter 10 and the maximum amount of dust that can retain the filter theoretically. C. Collection of pollution data from at least one air entering the ventilation system through the selected filter, D. Measurement of the air flow entering the ventilation system, E. Calculation of the amount of dust retained by the at least one selected filter, from the air pollution data entering from step C and the measurement of the incoming air flow from step D, F. Repeating step E for each time step t. G. Determination of the amount of cumulative dust retained by the selected filter from the results of steps E and FH Determination of the fouling rate of the selected filter by comparing the amount of cumulative dust determined in step G with the theoretical capacity of the filter determined in step B.
    [0002]
    2. Determination method according to claim 1, characterized in that said determination method comprises an additional step C1 for measuring pollution data, said step C1 being performed before the collection step C. 30
    [0003]
    3. Determination method according to any one of claims 1 or 2, wherein the determination method comprises a step I of displaying the fouling rate determined in step H.
    [0004]
    4. Determination method according to any one of claims 1 to 3, wherein said determination method comprises a step J of alerting the fouling rate.
    [0005]
    5. Determination method according to claim 4, wherein said determination method comprises a step J1 prior to the alerting step J, said step J1 being a step of comparing the degree of fouling determined in step H with a threshold fouling rate, when the determined fouling rate is lower than the threshold fouling rate, step J is not implemented, when the determined fouling rate is greater than or equal to the rate of fouling; Threshold fouling then step J is implemented.
    [0006]
    6. Determination method according to any one of claims 1 to 5, wherein steps C and D are performed consecutively, step C being performed before or after step D or steps C and D are performed simultaneously.
    [0007]
    7. Determination method according to any one of claims 1 to 6, wherein the incoming air is outside air.
    [0008]
    8. Determination method according to any one of claims 1 to 7, wherein the incoming air is indoor air.
    [0009]
    9. Ventilation and / or air treatment system in a building configured to implement the method of determining the fouling rate of at least one filter according to any one of claims 1 to 8, said system of ventilation and / or air treatment comprising: - at least one air inlet, - at least one air outlet, - an air flow determining element entering, - at least one filter positioned at the level of the at least one air inlet, said filter being arranged to be traversed by an incoming air; a unit for controlling the fouling rate of the at least one filter, the control unit comprising a calculator configured to determine the rate; fouling of the at least one filter from incoming air pollution data, the flow rate of the incoming air, and the theoretical capacity of the filter
    [0010]
    10. Ventilation and / or air treatment system according to claim 9, comprising at least one air pollution sensor, said pollution sensor cooperating with the control unit of the ventilation system and / or treatment of air. 'air.
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    同族专利:
    公开号 | 公开日
    CA2918475A1|2016-07-21|
    US20160209316A1|2016-07-21|
    FR3031800B1|2017-01-13|
    CN105805888A|2016-07-27|
    EP3048382A1|2016-07-27|
    EP3048382B1|2020-07-15|
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    法律状态:
    2015-12-15| PLFP| Fee payment|Year of fee payment: 2 |
    2016-07-22| PLSC| Publication of the preliminary search report|Effective date: 20160722 |
    2016-12-08| PLFP| Fee payment|Year of fee payment: 3 |
    2017-12-07| PLFP| Fee payment|Year of fee payment: 4 |
    2019-11-29| PLFP| Fee payment|Year of fee payment: 6 |
    2020-12-11| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1550460A|FR3031800B1|2015-01-21|2015-01-21|METHOD FOR DETERMINING THE RUNNING RATE OF AT LEAST ONE FILTER OF A VENTILATION SYSTEM AND ASSOCIATED VENTILATION SYSTEM|FR1550460A| FR3031800B1|2015-01-21|2015-01-21|METHOD FOR DETERMINING THE RUNNING RATE OF AT LEAST ONE FILTER OF A VENTILATION SYSTEM AND ASSOCIATED VENTILATION SYSTEM|
    EP16151788.3A| EP3048382B1|2015-01-21|2016-01-19|Method for determining the fouling rate of at least one filter of a ventilation system and associated ventilation system|
    CA2918475A| CA2918475A1|2015-01-21|2016-01-20|Process for determining the fouling rate of at least one filter in a ventilation system and associated ventilation system|
    CN201610039200.7A| CN105805888A|2015-01-21|2016-01-21|Method for determining the fouling ratio of at least one filter of a ventilation system and associated ventilation system|
    US15/003,574| US20160209316A1|2015-01-21|2016-01-21|Method for determining the fouling ratio of at least one filter of a ventilation system and associated ventilation system|
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