• 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:
    ABSTRACT There is provided an arrangement for de-gassing liquid/ semi-liquid material.The arrangement Comprises a Chamber 33 Comprising Walls enclosing avolume. The arrangement further Comprises an inlet 2 located at one end ofthe Chamber 33 and being Configured for introducing liquid or semi~1íquidmaterial into said Chamber 33 and at least one gas trap 4, 5, 10 arrangedWithin said Chamber 33 and being Configured for de-gassing said introducedliquid or semi-liquid material, and at least one valve 6, 7, ll, 13 Configuredfor evacuating gas out of said Chamber 33. The arrangement also Comprisesan outlet 3 located at a second end of said Chamber 33 and being Configuredfor evacuating said de-gassed liquid/ semi-liquid material from said Chamber33. There is also provided a Control unit for Controlling the opening and Closing of the valves in the arrangement. FIG A
    公开号:SE1550693A1
    申请号:SE1550693
    申请日:2015-05-28
    公开日:2016-11-29
    发明作者:Nilsson Joakim
    申请人:Food Radar Systems In Sweden Ab；
    IPC主号:
    专利说明:

    METHOD AND ARRANGEMENT FOR DE-GASSING OF F LUIDS TECHNICAL FIELD The present invention relates to processing of liquid or semi-liquid matter ingeneral, and specifically to de-gassing e.g. removal of unwanted gas bubbles in such matter.
    BACKGROUN D In industrial processes, in both food and other processing industries, Whereliquid or semi liquid fluids are transported in pipes and tubes, different typesof problems are occasionally occurring. One such problem is the presence ofbubbles of air and/ or other gas forming agents Within the transported material.
    If gas bubbles containing oxygen are present in transported food material,the medium is exposed to oxidative reactions, which may change theproduct, resulting in off-flavors, loss of colors, changes in stability etc. Thisis for example a great problem in the food and pharmaceutical sector Whereair bubbles often become mixed into the product in earlier processing stepsand causes loss of product quality due to induced lipid oxidation, bleaching, vitamin losses and unwanted other chemical reactions.
    Gas bubbles or cavities in products flowing in tubes also causes otherproblems like pumping irregularities, inaccurate measurements ofprocessing parameters, irregular filling of the product in the packing process etc.
    Furthermore an irregular flow of liquid or semi liquid fluids in tubes due topumpíng effects, turbulences as a consequence of unfavorable tubeconstructíons, foam formation in the product etc. also causes similar types of mechanical problems as gas bubbles in the product.
    As a consequence of what is described above there is a great demand fromindustry for compact, efficient and cost effective constructions which easilycan be installed and cleaned in the production line, Which reduces oreliminates gas bubbles in the product and Which reduces the disadvantagesof foam formation, turbulences, cavities and irregular pumping and filling properties.
    Consequently, there is a need for an efficient and simple method andarrangement for removal of unwanted gas bubbles in fluids that overcome the difficulties With known arrangements.
    SUMMARY The present disclosure relates to methods and arrangements for removing unwanted gas bubbles in fluids or semi-fluids.
    In order to enable the above, an arrangement for de-gassing liquid/ semi-liquid material is disclosed. The arrangement comprises a chamber Whichcomprises Walls enclosing a volume. The arrangement further comprises aninlet located at one end of the chamber and being configured for introducingliquid or semi-liquid material into the chamber. The arrangement alsocomprises at least one gas trap arranged within the chamber and beingconfigured for de-gassing the introduced liquid or semi-liquid material. Thearrangement further comprises at least one valve configured for evacuatinggas out of the chamber. The arrangement further comprises an outlet locatedat a second end of the chamber and being configured for evacuating the de- gassed liquid/ semi-liquid material from the chamber. 3 Also disclosed is a control unit for controlling the opening and closing of thevalves in an arrangement according to above. The control unit is configuredto read input obtained from sensors provided in the arrangement, where theinput provides information about measured gas levels. The control unit isalso configured to controlling the opening and closing of the valves based on the read input.
    Advantages of the current disclosure enable a simplified de-gassing of fluids and semi-fluids.
    BRIEF DESCRIPTION OF THE DRAWINGS The invention, together with further objects and advantages thereof, maybest be understood by referring to the following description taken together with the accompanying drawings, in which: Fig. A is a block diagram of an embodiment of the current disclosure,containing a horizontal tube, two valves and two sensors close to the valves; Fig. B is a block diagram of a further embodiment of the currentdisclosure, containing a horizontal tube, three valves of which one has acomparably larger area and is located in the mid part of the tube, and threesensors close to the valves; Fig. C is another embodiment of the current disclosure, containing atube, where the first part is horizontal and the second part is deviatingfrom the horizontal plane, three valves and three sensors close to the valves; Fig. D is another schematic drawing illustrating how a control unit isconfigured to control the valves of the arrangement.
    Fig. E provides a more detailed view of the left side of Figs. A-C.
    Fig. F provides a more detailed view of the right side of Figs. A-C.
    DETAILED DESCRIPTION The present disclosure relates to removal of unwanted bubbles in liduid or semi-liquid matter, e.g. food product.
    In order to further understand the benefits of the current disclosure, some aspects of known technology will be described below.
    The probably most commonly used constructions to overcome the problemswith air in liquid products are de-aerators based on vacuum principles. Inthose the fluid is passed through a tank with a pressure significantly lowerthan the ambient pressure. The principle works if the fluid viscosity is lowbut as soon as the viscosity is fairly high, like in semi liquid fluids whichoften is the case in for example food processing, vacuum based systems willfail in many cases. Furthermore a separate vacuum pump is required sotogether with the tank, which has to be vacuum tolerant, it makes thesystem costly. Since the product is exposed to vacuum, water will beremoved from the product in the de-aerator, thus changing the productproperties. Of the same reason volatile compounds like flavors, solvents etc.will be lost in the process, which is a definite disadvantage in i.e. food andpharmaceutical products. To condensate and re-incorporate such volatilecompounds is a costly process. It is furthermore not obvious that thevacuum based systems reduce existing flow irregularities. Furthermore thereis usually a need to include a separate pump after the de-aerator and thiswill affect the product in a negative way by introducing an additional mechanícal abrasion to the product.
    There are also some system constructions available that operates with apressure close to the ambient pressure. The used systems are principallybased on a vessel into which the product stream is pumped and where theoutlet from the tank is located in the bottom of the vessel, separated fromthe inlet. The gas is expected to flow up to the liquid surface, due to its lowerdensity, andfleave the vessel through a valve in the top, when the productlevel becomes too low. These systems might work as long as the fluidviscosity is low and allows the gas to move upwards through the liquid. If the liquid is of a higher viscosity the gas bubbles will not easily move upwards through the medium. Furthermore, since the inlet of the liquid flow into thevessel in many cases is above the liquid surface, a flow is induced which cancreate new gas bubbles in the product. It is furthermore not clear to what extent those systems reduce the existing flow irregularities.
    To summarize, there are some previously known designs on the marketwhich might reduce gas bubbles in fluids with low viscosity. Some of themare costly and/ or creates quality defects in the product. None is effectivelyworking with more viscous liquids and at the same time reducing both gasbubbles and other disadvantages as foam formation, turbulences, cavities and irregular pumping and filling properties.
    Therefore, the inventors have developed an improved de-gassingarrangement, which efficiently removes bubbles even from liquids with relatively high viscosity and without the need for vacuum operation.
    Below is described a novel arrangement which is a compact, efficient andcost effective construction, which can be easily installed and cleaned in theproduction line, CIP, Cleaning in Place. The arrangement is adapted toreduce or eliminate gas bubbles in a liquid or semi-liquid product and toreduce disadvantages emanating from foam formation, turbulences, cavitiesand irregular pumping and filling properties even in the case With semi-liquid fluids of high viscosity. The arrangement is furthermore gentle to theproduct and is constructed in such way that it does not require that vacuumpumps, or other pumps, are installed in order to move the product forward through the Chamber towards the next step in the process.
    According to the present invention there is provided an arrangement for de-gassing liquid or semi-liquid material. The arrangement comprises aChamber 33 that comprises walls enclosing a volume. The arrangementfurther comprises an inlet 2 located at one end of the chamber 33 and being configured for introducing liquid or semi-liquid material into the chamber 6 33. The arrangement also Comprises at least one gas trap 4, 5, 10 arrangedWithin the Chamber 33 and being Configured for de-gassing the introducedliquid or semi-liquid material. The arrangement further Comprises at leastone valve 6, 7, ll, 13 Configured for evacuating gas out of the Chamber 33.The arrangement is also provided With an outlet 3 located at a second end ofthe Chamber 33 and being Configured for evacuating the de-gassed liquid/ semi-liquid material from the Chamber 33.
    A particular embodiment of the proposed arrangement provides anarrangement Wherein the inlet 2 Comprises an inlet tube adapted to beconnected to an external feeding pipe 15 for feeding liquid or semi-liquid material into the Chamber 33 through the inlet tube.
    A possible embodiment of the arrangement provides an arrangement thatComprises two gas traps 4, 5, where one of the gas traps 4 is arranged close to the inlet 2 and Where the other gas trap 5 is arranged close to the outlet 3.
    Still another possible embodiment provides an arrangement Wherein each ofthe at least one gas trap 4, 5, lO is defined by a region bounded by at leastone Wall section. The Wall section being angularly disposed relative the flowdirection of the liquid or semi-liquid material introduced to the Chamber 33.A possible example of such an embodiment Comprises Wall sections, such asmetal or rubber sheets, that can be inserted at suitable locations Within theChamber. The Wall sections may be inserted in a direction that is angularlydisposed relative the flow direction. In this Way the transition point Wherethe material flow passes the sheet or Wall section defines an angled edge.The turbulent flow created due to the angled edges facilitates the separationof bubbles from the liquid/semi-liquid material and enables their transportto the upper part of the arrangement. Hence the angled edge together Withthe height of the sheet or wall section acts as a gas trap Whereby bubbles of gas are transported upward along the direction of the angled Wall and is 7 trapped in an area in the vicinity of the Wall. By providing an exit for thebubbles by means of an appropriately placed valve, it will be possible toguide the bubbles toward the gas trap and evacuate them by opening the valve.
    An optional embodiment of the arrangement described above provides anarrangement wherein the wall section 4 that acts as a gas trap form part ofthe Walls of the chamber 33. That is, the wall sections 4 are íntegrally formedWith the chamber 33. This particular embodiment provides a robustconstruction displaying a minimum number of loose parts or units. An illustrated example of such an arrangement is provided by FIG.A According to still another embodiment there is provided an arrangementWherein the wall sections have a vertical or almost vertical extension relativethe flow direction of the liquid or semi-liquid material introduced to thechamber 33. The vertical, or almost vertical, extension of the Walls relativethe flow direction of the liquid or semi-liquid material ensures that thetransition point Where the material flows past the wall is defined by a sharpedge. The turbulent flovv created due to the sharp edge facilitates theseparation of bubbles from the liquid/ semi-liquid material and enables theirtransport to the upper part of the arrangement. Hence the sharp edge,cooperating With the height of the wall comprising the sharp edge, Will act asa gas trap Whereby bubbles of gas are transported upvvard along thedirection of the Wall and is trapped in an area in the vicinity of the upperpart of the wall. By providing an exit for the bubbles by means of anappropriately placed valve, it Will be possible to guide the bubbles toward thegas trap and evacuate them by opening the valve. The valves may be adaptedto be opened and closed manually but they may also be controlledautomatically by means of a control unit. Such a control unit Will be described at a later stage in the present application.
    Gas traps as the one described above may be arranged in the vicinity of theinlet and/ or the outlet of the chamber. A possible embodiment of theproposed arrangement also comprises at least one more gas trap that can bearranged closer to the center of the chamber 33. That is, an embodiment ofthe proposed arrangement comprises at least one additional gas trap 10 thatis arranged at the upper part of the Chamber 33, this at least one additionalgas trap 10 defines a region of the Chamber 33 that is partially bounded byWall sections that are angularly disposed relative the flow direction of theliquid or semi-liquid material introduced to the chamber 33, the region isopen at a lower part to enable gas bubbles in the liquid or semi-liquid material to enter the region.
    The additional gas trap, or gas traps, 10 may be provided in the form of abox like structure that can be attached to the interior of the chamber at asuitable location. The box like structure have wall sections that areangularly disposed relative the floW direction of the liquid or semi-liquidmaterial. The wall sections, and the height of the wall sections acts in thesame way as the earlier described gas traps. Hence gas bubbles that passesthe transition point defined by the lower end of a wall section Will be directedupwards following along the wall section. By providing a valve in the vicinityof the gas "trap 10 gas bubbles may be evacuated from the chamber byopening the valve. According to an optional embodiment there is provided anarrangement 1 wherein at least one of the additional gas traps 10 is acentrally arranged gas trap. Figure B provides an illustration Where a singleadditional gas trap 10 is arranged in the central part of the chamber 33. Theadditional gas trap 10 may be positioned anywhere in the chamber 33.According to an exemplary embodiment is the gas trap 10 located closest tothe outlet 3.
    The additional gas trap(s) 10 may have wall sections that form part of the walls of the chamber 33. That is, the additional gas trap 10 may be integrally 9 formed with the Chamber 33. This ensures a robust construction With aminimum amount of loose parts or units. This in turn ensures that the risk that parts of the arrangement loosens and joins the material flovv is reduced.
    An embodiment of the proposed arrangement provides an arrangement thatcomprises at least one valve 6, 7, 11, 13, that is configured for evacuatinggas out of the Chamber 33, and that is provided in the vicinity of any of thegas traps 4, 5, 10. Another possible embodiment provides an arrangementwherein a valve 6, 7, ll, 13, is provided in the vicinity of each of the gas traps 4, 5, 10 to enable evacuation of gas from said Chamber 33.
    According to a useful embodiment there is provided an arrangement whereinthe arrangement comprises a control unit 40 that is adapted to control the opening and closing of the valves 6, 7, ll, 13.
    According to still another useful embodiment of the proposed technologythere is provided an arrangement that comprises sensor means 14 that areconfigured to measure the gas level in the Chamber 33. The sensor means 14may in turn be connected to the control unit 40 whereby the sensor means14 is configured to provide information to the Control unit 40 to enable thecontrol unit to control the opening and closing of the valve based on theinformation provided from the sensor means. The sensor control unitinteraction enables a complete automatic handling of the arrangement. Thesensors 14 performs measurements of the gas levels in the vicinity of the gastraps and report the outcome of the measurements to the control unit 40.The Control unit is configured to read the input from the sensors and, basedon the information, determine Whether a valve or several valves shall open.The control unit may in particular be configured to determine that a valve shall be opened if the measurements performed by the sensor(s) provide I indications that the gas level is above a certain threshold value, e.g. a pre- determined threshold value. On the same token it may determine that the valve(s) shall be closed if the reported gas level is below the threshold valueor below another pre-determíned threshold value. A specific example ofsensor that can be used for determining the gas levels in the chamber is alevel switch sensor such as the level switch sensor LBFS provided byBaumer GmBH. It is however possible to use any type of sensor that is capable of determining the level of gas in e. g. a chamber.
    Still another embodiment of the proposed arrangement is illustratedschematically in FIG.C. There it is shown an arrangement according to anyof the embodíments described above but wherein the chamber 33 alsocomprises a first section 12* essentially parallel With the direction of the flowof the material. The chamber 33 also comprises a second section 12 that isangled relative the first section 12* and wherein the outlet 3 is located at the end of the second section 12 that is farthest from the first section 12*.
    FIG.C illustrates that the horizontal part or the first section 12* of thechamber 33 is followed by a section 12 of the chamber that deviates from thehorizontal plane in order to force the product flow downwards before it leavesthe arrangement 1. A construction where the chamber is entirely or partlydeviating from a horizontal plane is especially useful when the liquid orsemi-liquid product contains larger volumes of gas. This chamber designforces the gas bubbles in the end of the tube to move backwards which inturn makes is possible for a lot of the remaining gas bubbles to leave thechamber 33 through a valve 13 that is arranged in the upper part of the chamber 33 at the beginning of the section of the chamber that is inclined.
    With reference to Figures A-C, a few basic embodíments and examples of anarrangement for de-gassing liquid or semi-liquid material in a processingplant will be described. The examples and embodíments are merely intendedto facilitate the understanding of the workíngs of the proposed arrangement and should not be seen as limiting the scope. ll With reference to Figure A, the arrangement l for de-gassing liquid/ semi-liquid material comprises a Chamber or an interior cavity 33, an inlet tube 2and outlet tube 3. The inlet tube 2 are adapted to introduce liquid or semi-liquid material in the lower part of the arrangement 1 into the Chamber 33.The location of the product inlet in the arrangement removes dead pocketsand creates an optimal hygienic design. The initial product stream throughinlet tube 2 is preferably parallel to the product floW in the feeding pipe 15from which the liquid or semi-liquid product is transferred to thearrangement 1. The initial product stream is preferably horizontal or almosthorizontal. The chamber 33 of the arrangement has an area that is largerthan the area of both the inlet tube 2 and the outlet tube 3. The ratio of theareas of the inlet tube 2 and outlet tube 3 in relation to the area of thechamber 33 of the arrangement as Well as the length of the chamber 33 ofthe arrangement is dependent on the product flow and the amount of gasbubbles in the product. The higher the product floW, the larger amount ofgas bubbles are present and thus there Will be a greater area ratio betweenthe chamber 33 and the inlet tube 2 and outlet tube 3. The length of thechamber may preferably also be chosen to ascertain that smaller gasbubbles, Who take longer time to reach the upper part of the chamber, may have sufficient time to reach the upper part.
    The transition point Where the product flow enters the chamber 33 of thearrangement 1 is marked with a first Wall 4 that is designed with sharpedges in order to create certain floW turbulence in the product flow and tothereby facilitate the separation of gas bubbles 8 from the liquid or semi-liquid material and to direct the gas bubbles 8 towards the upper part ofchamber 33 in the arrangement 1. Larger gas bubbles are denoted With thenumeral 8 in the drawings while smaller gas bubbles are denoted by the numeral 9.
    As can be seen in Figure A, the immediate decrease in area between the chamber 33 of the arrangement 1 and the outlet tube 3 creates a high 12 second wall 5 that acts as a second gas trap where, due to the sharp edges,potentially remaining gas bubbles and foam are transferred upwardstowards a roof of the Chamber instead of following the product flow.According to a particular embodiment of the arrangement there could beprovided a valve 7 in the upper area of the safety wall, or gas trap, 5 whichmay be controlled to open up and evacuate those gas bubbles that havegathered there. Furthermore, when the product flow starts and stops andsometimes moves back and forth towards the outlet 3, the safety wall 5 actsto prevent the gas bubbles to follow the product flow. The constructiontherefore acts as a gas trap whose essentially vertical walls 4, 5, vertical withreference to the flow direction of the product, acts to both separate out gasbubbles from the product flow, at wall 4, and to trap the gas bubbles and direct them towards the upper part of the chamber, at the second wall 5.
    Figures E and F provides a more detailed illustration of the gas trapconstruction according to the proposed arrangement. Fig. E illustrates inlarger detail the inlet side of the proposed arrangement. Shown is the inlet 2,the gas trap 4, a valve 6 and a sensor 14. Fig. F provides an illustration ofthe outlet side of an arrangement according to the proposed technology.
    Shown is the outlet 3, the gas trap 5, the valve 7 and a sensor 14.
    Further, the arrangement includes in the upper part one or more valves 6, 7,that are adapted to evacuate gas from the chamber 33 of the arrangementand to control the level of the liquid/semi-liquid material in the chamber.Most of the larger gas bubbles 8 will in this construction mainly be removedthrough the valve 6 at the inlet side of the arrangement 1. To be able toremove also small bubbles 9 and foam etc., a valve 7 should preferably beplaced at the end of the chamber 33, where the product leaves thearrangement. In this way it will be possible to remove even smaller bubblesand foam from the interior of the arrangement 1. In case the productcontains even larger volumes of gas, even more valves can be introduced in the upper part of the chamber 33 of the arrangement 1. One particular 13 embodiment is illustrated in Figure B where an additional gas trap 10,having walls whose lower ends define sharp edges relative the product flow,is located in the central part of the Chamber 33 of the arrangement. Thewalls of this centrally located gas trap 10 might in particular embodimentsbe higher than the walls 4, 5 located at the beginning and the end, respectively of the arrangement 1.
    All valves and tubes may be positioned to make it easy to clean the exit areafor the bubbles and to remove possible product splashes following the valveopenings. Possible product splashes may for example be removed by meansof an automated water flush that can be controlled by a control unit, eitherthe control unit 40 that controls the opening and closing of the valves, or by means of a separated control unit dedicated to this particular purpose.
    The arrangement may in some embodiments be inclined from the horizontalplane in the direction that forces the product flow to move downwards. Thiswill in certain cases facilitate a backward motion of the air bubbles, ascompared to the flow direction, in the upper part of the arrangement l. Thisbackward motion will enable the gas bubbles to move towards the outlet valve 6 at the flow entrance and leave the chamber through the valve 6.
    In the upper part of the arrangement there are preferably one or moresensors 14. These sensors are preferably arranged close to the valves andare configured to measure the level of gas and providing information aboutthe measurements to a control unit 40 configured for controlling the valvesin order to open or close the valves. The arrangement moreover includes anoutlet tube 3 located at the lower part of the Chamber. The outlet tube 3 isconfigured to evacuate the de-gassed liquid or semi-liquid material from theChamber 33. The product level of the gas trap can preferably be controlled byconnecting the sensors and valve control to a micro controller or similar device. It may also be controlled by a means of a passive float switch valve. 14 An illustration of an arrangement comprising a control unit 40 is given inFIG.D The feedback from the sensors in the upper part of the arrangement ispreferably monitored by a PLC, a Programmable Logic Controller, or similarmeans and the control unit is adapted to open and close the gas outlet in theupper part of the chamber. This is further illustrated in figure D. Theconstruction is very compact and is designed for inline cleaning, CIP -Cleaning in Place. The arrangement can furthermore, due to the fact that thedesign includes suitable valves, be emptied from products. This can forexample be done by pressing in air, inert gas or Water via a valve in the top.This will press out the product from the arrangement Which is essential for an industrial user.
    In contrary to known existing de-aerating systems available, Which areoperating below the ambient pressure, the proposed arrangement 1 isfunctioning under a pressure that is higher than the ambient pressure. ThisWill eliminate the need to provide additional pumps. The pipe diameter of theinlet tube 2 and outlet tube 3 may be the same, it may also be about the sizeof the pipe diameter in the feeding pipe 15 that feeds the material to thearrangement. This Will make it possible to easily install the arrangement inan existing production line without having to change the production speed.The arrangement has been tested under realistic circumstances (flows in therange of 1 - 15 m3/h) With both liquid and semi liquid products in industrial production With excellent result.
    The product floW leaving the equipment is de-gassed, the gas bubbles aretrapped in the construction and the disadvantages of foam formation,turbulences, cavities and irregular pumping and filling properties are significantly reduced.
    The embodiments described above are to be understood as a few illustrativeexamples of the present invention. It Will be understood by those skilled inthe art that various modifications, combinations and changes may be madeto the embodiments without departing from the scope of the presentinvention. In particular, different part solutions in the different embodimentscan be combined in other configurations, where technically possible. The scope of the present invention is, however, defined by theappended claims.
    权利要求:
    Claims (17)
    [1] 1. An arrangement for de-gassing liquid or semi-liquid material, said arrangement comprising: a Chamber (33) comprising walls enclosing a volume; an inlet (2) located at one end of the Chamber (33) and being Configuredfor introducing liquid or semi-liquid material into said Chamber (33); at least one gas trap (4, 5, 10) arranged Within said Chamber (33) andbeing Configured for de-gassing said introduced liquid or semi-liquidmaterial; at least one valve (6, 7, 11, 13) Configured for evacuating gas out of saidChamber (33); an outlet (3) located at a second end of said Chamber (33) and beingConfigured for evacuating said de-gassed liquid/ semi-liquid material fromsaid Chamber (33).
    [2] 2. The arrangement of claim 1, Wherein said inlet (2) comprises an inlet tubeadapted to be connected to an external feeding pipe (15) for feeding liquid or semi-liquid material into said Chamber (33) through said inlet tube.
    [3] 3. The arrangement according to claim 1 or 2, Wherein the arrangementcomprises two gas traps (4, 5), one of the gas traps (4) being arrangedclose to the inlet (2) and the other gas trap (5) being arranged close to theoutlet (3).
    [4] 4. The arrangement according to any of the claims 1 to 3, Wherein each ofsaid at least one gas trap (4, 5, 10) is defined by a region bounded by atleast one Wall section, said wall section being angularly disposed relativethe flovv direction of the liquid or semi-liquid material introduced to theChamber (33). 17
    [5] 5. The arrangement according to claim 4, wherein said Wall section form part of the Walls of said Chamber (33).
    [6] 6. The arrangement according to claim 4 or 5, wherein the wall sectionshave a vertical or almost vertical extension relative the flow direction of the liquid or semi-liquid material introduced to the chamber (33).
    [7] 7. The arrangement according to any of the claims l - 6, wherein the arrangement ( 1) comprises at least one additional gas trap (10) arrangedat the upper part of the chamber (33), said at least one additional gastrap ( 10) defining a region of the chamber (33) that is partially boundedby wall sections that are angularly disposed relative the flow direction ofthe liquid or semi-liquid material introduced to the chamber (33), saidregion being open at a lower part to enable gas bubbles in the liquid or semi-liquid material to enter the region.
    [8] 8. The arrangement according to claim 7, wherein the Wall sections form part of the Walls of said chamber (33).
    [9] 9. The arrangement according to claim 6 or 7, wherein the Wall sections have a vertical or almost vertical extension relative the flow direction of the liquid or semi-liquid material introduced to the chamber (33).
    [10] 10. The arrangement according to any of the claims 7-9, wherein at least one of said gas traps ( 10) is arranged in the central part of the chamber(33). 18
    [11] 11. The arrangement according to any of the claims 1-10, wherein at leastone valve (6, 7, 11, 13), configured for evacuating gas out of said Chamber (33), is provided in the vicinity of any of the gas traps (4, 5, 10).
    [12] 12. The arrangement according to claim 11, wherein a valve (6, 7, 11, 13),is provided in the vicinity of each of the gas traps (4, 5, 10) to enable evacuation of gas from said chamber (33).
    [13] 13. The arrangement according to any of the claims 1-12, wherein thearrangement (1) further comprises sensor means (14) being configured to measure the gas level in chamber (33).
    [14] 14. The arrangement according to claim 1-13, wherein the arrangementfurther comprises a control unit (40) adapted to control the opening andclosing of the valves (6, 7, 11, 13).
    [15] 15. The arrangement according to claim 14, wherein the control unit (40)is connected to the sensor means ( 14) and wherein the sensor means ( 14)is configured to provide information to the control unit to enable thecontrol unit to control the opening and closing of the valve based on the information provided from the sensor means.
    [16] 16. The arrangement according to any of the claims 1-15, wherein thechamber (33) comprises a first section (12*), said first section (12*) beingessentially parallel With the direction of the flow of the material, and asecond section (12) that is angled relative the first section (12*) andwherein the outlet (3) is located at the end of the second section (12) that is farthest from the first section (12*).
    [17] 17. A control unit (40) for controlling the opening and closing of the valvesin an arrangement according to any of the claims 1-16, wherein said control unit is configured to: 19 read input obtained from sensors provided in the arrangement, saidinput providing information about measured gas levels;oontrolling, based on the read input, the opening and closing of said valves.
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    同族专利:
    公开号 | 公开日
    SE538793C2|2016-11-29|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1550693A|SE538793C2|2015-05-28|2015-05-28|Method and arrangement for de-gassing of fluids|SE1550693A| SE538793C2|2015-05-28|2015-05-28|Method and arrangement for de-gassing of fluids|
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