CN112922694B - A wall-type flow-around filter module, filter material and oil-gas separator - Google Patents
A wall-type flow-around filter module, filter material and oil-gas separator Download PDFInfo
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- CN112922694B CN112922694B CN202110293320.0A CN202110293320A CN112922694B CN 112922694 B CN112922694 B CN 112922694B CN 202110293320 A CN202110293320 A CN 202110293320A CN 112922694 B CN112922694 B CN 112922694B
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- 239000000463 material Substances 0.000 title claims abstract description 19
- 238000001914 filtration Methods 0.000 claims abstract description 33
- 238000007789 sealing Methods 0.000 claims description 5
- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 abstract description 6
- 239000003595 mist Substances 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 46
- 239000003921 oil Substances 0.000 description 16
- 238000009423 ventilation Methods 0.000 description 13
- 238000002485 combustion reaction Methods 0.000 description 8
- 239000003344 environmental pollutant Substances 0.000 description 7
- 231100000719 pollutant Toxicity 0.000 description 7
- 238000000926 separation method Methods 0.000 description 7
- 239000010705 motor oil Substances 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000003365 glass fiber Substances 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 239000002912 waste gas Substances 0.000 description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000010763 heavy fuel oil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000008206 lipophilic material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M2013/0038—Layout of crankcase breathing systems
- F01M2013/0044—Layout of crankcase breathing systems with one or more valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
- F01M2013/0438—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with a filter
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
本发明公开了一种壁式绕流过滤模块、过滤材料及油气分离器，其中壁式绕流过滤模块，包括至少一层多孔过滤介质层(101)、及至少一层绕流过滤层，所述绕流过滤层形成有供气流绕行的流道，所述流道具有进气口和出气口。本发明提供的壁式绕流过滤模块、过滤材料及油气分离器，在对发动机曲轴箱窜气中的油雾进行分离的同时，可提高对发动机曲轴箱窜气中排放粒子的过滤性能。
The present invention discloses a wall-type bypass filter module, a filter material and an oil-gas separator, wherein the wall-type bypass filter module comprises at least one porous filter medium layer (101) and at least one bypass filter layer, wherein the bypass filter layer forms a flow channel for airflow to bypass, and the flow channel has an air inlet and an air outlet. The wall-type bypass filter module, the filter material and the oil-gas separator provided by the present invention can improve the filtering performance of the emission particles in the engine crankcase blowby while separating the oil mist in the engine crankcase blowby.
Description
Technical Field
The invention relates to the technical field of oil-gas separator detection, in particular to a wall type bypass flow filtering module, a filtering material and an oil-gas separator.
Background
The exhaust pollutants of the diesel engine are mainly combustion exhaust gas directly exhausted by the exhaust pipe and crankcase blow-by gas, along with the stricter control of the exhaust pipe emissions by law and regulation, the technical improvement is mainly focused on the control of the combustion exhaust gas directly exhausted by the exhaust pipe and has remarkable effects, and the national sixth law calculates the crankcase blow-by gas as a part of the exhaust pollutants, the proportion of the pollutants in the crankcase blow-by gas to the total pollutants of the diesel engine is increased, and the crankcase blow-by gas is controlled to further reduce the pollutant emissions.
Crankcase blow-by refers to the mixture of combustible gas and burnt gas that escapes from the combustion chamber into the crankcase through the clearance between the piston group and the cylinder during compression combustion expansion when the internal combustion engine is running. The blowby gas enters the crankcase to raise the temperature of the crankcase, increase the evaporation of the oil in the oil pan, and the splash lubrication is adopted by parts in the crankcase, so that oil mist can be generated in the splash lubrication process, and the blowby gas contains residual fuel oil, waste gas generated by combustion, carbon black and a lot of oil. If the blowby gas can not be discharged in time, fuel oil vapor in the blowby gas is condensed, engine oil is deteriorated, lubrication is poor, and therefore part wear and engine oil consumption are increased. Accordingly, the crankcase of an internal combustion engine requires a ventilation system to treat the blow-by gas, separate the oil from the blow-by gas, while maintaining the crankcase pressure within a suitable range.
The crankcase ventilation system is divided into a natural ventilation system and a forced ventilation system, wherein the crankcase natural ventilation system is also called an open crankcase ventilation system, the principle of the crankcase natural ventilation system is that crankcase waste gas is directly discharged into the atmosphere, and the crankcase forced ventilation system introduces the crankcase waste gas into an air inlet pipe of an engine so as to burn in a cylinder, thereby reducing pollutant discharge and improving the economy of the engine.
Problems of the prior art:
(1) As shown in figure 1, the forced ventilation system is adopted, if the forced ventilation system is not controlled, engine oil vapor contained in the crankcase blowby gas can be condensed along the way and adsorbed on parts such as a supercharger c, an intercooler d, an air inlet and outlet valve and the like of the air inlet system, so that the working performance and the service life of the engine oil are reduced, in addition, the main component of the engine oil is a mixture of heavy high molecular weight hydrocarbons and non-hydrocarbons, the engine oil is difficult to completely burn after being introduced into a combustion chamber, soot is easy to generate, carbon deposition is easy to form in a cylinder b, the working performance of an engine a is reduced, meanwhile, the emission of harmful particles is increased, a tail gas post-processor is polluted, and the performance and the service life of the tail gas post-processor are reduced. Thus, the technical challenges of current forced ventilation systems are very great. As disclosed in patent CN 111246924A, a separator product for a forced ventilation system is disclosed, and the use of the product achieves the purpose of separation performance through a filter medium. The market maintenance of the commercial vehicle can not reach the standard degree of the passenger vehicle, the maintenance of newly added part users is a challenge, the maintenance cost is increased firstly, and if the maintenance is not timely, the abnormal phenomenon that the pressure of the crankcase is increased or the pollutants are discharged to the atmosphere when the safety valve is opened can occur.
(2) There are two structural designs for respirators of open ventilation systems as well, one of which is the design of the filter cartridge as described in the above-identified patent product patent CN 111246924A, the drawbacks of which are described above. The other structure is a filter element-free design, such as the physical structure of acceleration orifice plate, labyrinth collision, etc. in patent CN 106471227A. Such structures can achieve a certain separation in operation, but it is difficult to achieve levels of 6 x 10 x 11 or less in the separation of PN, which is specific to particles larger than 23 nm. Mainly because the particle size in PN is irregular movement, the scheme in patent CN106471227A has shorter movement path and lacks effective capturing medium. The required level of PN in the national sixth emission regulations cannot be reached.
Disclosure of Invention
Based on the problems, the invention aims to provide a wall-type bypass flow filter module and an oil-gas separator, which can optimize and improve the PN separation performance in automobile exhaust.
In order to overcome the defects in the prior art, one of the technical schemes provided by the invention is as follows:
A wall-type bypass filter module comprises at least one porous filter medium layer and at least one bypass filter layer, wherein the bypass filter layer is provided with a flow passage for air flow to bypass, and the flow passage is provided with an air inlet and an air outlet.
In some of these embodiments, the bypass filtration layer is disposed between two porous filter media layers, and the flow channels are in communication with the porous filtration layers.
In some embodiments, the flow-around filter layer comprises two microporous channel layers, the microporous channel layers being of a microporous network structure, the micropores of the two microporous channel layers being staggered with respect to one another to form the flow channels between the two microporous channel layers.
In some embodiments, the microporous channel layer and the porous filter medium layer are fixedly connected with each other between two adjacent microporous channel layers.
In some embodiments, the microwells are one or more of square, round, oval, diamond.
In some embodiments, a plurality of channels are formed in the bypass filter layer in spaced apart relation, the plurality of channels communicating with one another via the porous filter media layer to form the flow channels.
In some embodiments, the bypass filtration layer is made of an oleophobic material.
In some embodiments, the porous filter media layer is made of a lipophilic material.
In order to overcome the defects in the prior art, the invention provides another technical scheme as follows:
An oil and gas separator comprising a wall bypass filtration module as described in any one of the preceding claims.
In some embodiments, the filter cartridge comprises a cartridge body and a central skeleton mounted within the cartridge body, the at least one porous filter media layer, at least one bypass filtration layer being wound around the central skeleton in a circumferential direction.
In some embodiments, the central framework comprises an upper end cover and a central supporting tube arranged on the upper end cover, at least one porous filtering medium layer and at least one bypass filtering layer are wound on the central supporting tube and are abutted to the upper end cover, a plurality of air outlet holes are formed in the upper end cover, a circle of clamping hoops in sealing fit with the tank body are arranged on the periphery of the upper end cover, and the upper end cover is in clamping connection with the clamping hoops.
In some embodiments, the lower end of the central support tube is abutted to the bottom of the tank body, at least one exhaust port is arranged on the side wall of the lower portion of the central support tube, and a safety valve is arranged at the upper end of the central support tube.
In some embodiments, the filter cartridge comprises a canister and a filter cartridge mounting member mounted within the canister, the at least one porous filter media layer, at least one bypass filtration layer being arranged in a stack within the filter cartridge mounting member.
In some embodiments, the filter element mounting piece comprises an end cover part and a mounting part arranged at the lower end of the end cover part, a mounting opening for the wall-type bypass filter module to extend in is formed in the side part of the mounting part, an oil return opening is formed in the bottom of the mounting part, and an air outlet is formed in the end cover part.
In order to overcome the defects in the prior art, the invention provides another technical scheme as follows:
A wall-type bypass filter material includes a porous filter medium layer, and microporous channel layers arranged on both sides in a layer thickness direction of the porous filter medium layer.
In some embodiments, the microporous channel layer is composited on the surface of the porous filter media layer.
Compared with the prior art, the invention has the advantages that:
1. The bypass filter layer is provided with a flow passage for bypassing the air flow, so that the channel length of the gaseous fluid can be prolonged, the collision probability of particles in the air flow and the porous filter medium can be increased, the PN separation performance can be improved, channels except the porous filter medium can be provided, more air flow bypasses the bypass filter layer when the resistance of the porous filter medium is increased, and the circulation resistance of the whole filter module is not obviously increased in the initial and use states;
2. The flow-around filter layer is composed of two layers of microporous channel layers, and the microporous channel layers are of microporous net structures, so that the structure is simple and the production is convenient;
3. The bypass filter layer is made of oleophobic materials, separated oil drops can be settled faster, and the service life of the filter module is prolonged;
4. when the porous filter medium layer and the microporous channel layer are applied to the oil-gas separator, the porous filter medium layer and the microporous channel layer are wound on the central framework, so that the most filter medium can be contained in the minimum space;
5. The safety valve is arranged in the central supporting tube of the central framework, the structure is compact, the inner space of the central supporting tube is utilized, when the inner pressure of the oil-gas separator is overlarge, air flow can enter the central supporting tube through the lower end of the central supporting tube to jack up the safety valve, and accordingly the air flow can be discharged through the upper end of the central supporting tube.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a prior art forced air system;
FIG. 2 is a schematic view of a wall-type bypass filtration module according to embodiment 1 of the present invention;
FIG. 3 is a schematic view of a microporous channel layer according to an embodiment of the present invention;
FIG. 4 is a schematic view of another embodiment of a microchannel layer;
FIG. 5 is a schematic view of a wall-wrapped filter module according to embodiment 2 of the present invention;
fig. 6 is a schematic structural view of embodiment 1 of an oil-gas separator according to the present invention;
FIG. 7 is a top view of the central skeleton of embodiment 1 of the present invention;
fig. 8 is a schematic structural view of embodiment 2 (tank removal) of an oil-gas separator according to the present invention;
FIG. 9 is a top view of FIG. 8;
FIG. 10 is a schematic view of a wall-wrapped filter material according to the present invention;
wherein:
a. the system comprises a generator, a cylinder, a supercharger, an intercooler and a motor;
100. Wall-type bypass filtration module, 101, porous filtration medium layer, 102, microporous channel layer, 103, oil-resistant and temperature-resistant material, 103a, channel, 200, air flow;
1. 1-1 parts of a tank body and an air outlet pipe;
2. 2-1 parts of a central framework, 2-1 parts of an upper end cover, 2-1 parts of an air outlet hole, 2-2 parts of a central supporting tube, 2-2 parts of an air outlet, 2-2 parts of a boss;
3. A safety valve; 3-1 parts of valve cover, 3-2 parts of supporting legs, 3-2a parts of clamping legs;
4. A clamp;
5. A seal ring;
6. the filter element comprises a filter element mounting part, 6-1 parts, an end cover part, 6-1a parts, a gas outlet, 6-2 parts, a mounting part and 6-2a parts and an oil return port.
Detailed Description
The above-described aspects are further described below in conjunction with specific embodiments. It should be understood that these examples are illustrative of the present invention and are not intended to limit the scope of the present invention. The implementation conditions used in the examples may be further adjusted according to the conditions of the specific manufacturer, and the implementation conditions not specified are generally those in routine experiments.
Referring to fig. 2, a schematic structural diagram of embodiment 1 of a wall-type bypass filtration module 100 is provided, which includes at least one porous filter media layer 101, and at least one bypass filtration layer formed with a flow path for a gas flow 200 to bypass, the flow path having a gas inlet and a gas outlet, so that a mixed gas can bypass within the bypass filtration layer.
In this example, the wall-type bypass filtration module 100 includes three porous filtration media layers 101 and two bypass filtration layers, the bypass filtration layers are disposed between the two porous filtration media layers 101, the flow channel is communicated with the porous filtration media layers 101, the airflow 200 entering the flow channel to bypass can collide with the porous filtration media layers 101, so that the collision probability of the airflow 200 and the porous filtration media layers 101 can be increased, and the separation performance of PN can be improved. It should be understood that the number of porous filter media layers 101 and the number of bypass filter layers may be set as desired in practice, and the present invention is not limited, and the bypass filter layers are preferably disposed between two porous filter media layers 101.
In order to facilitate the production and processing of the flow-around filter layer, in this example, the flow-around filter layer includes two microporous channel layers 102, the microporous channel layers 102 are in a microporous mesh structure, and micropores of the two microporous channel layers 102 are staggered with each other to form the above-mentioned flow channel between the two microporous channel layers 102. The microwells may be one or more of square (as shown in fig. 3), circular, oval (as shown in fig. 4), and diamond. Preferably, the bypass filter layer is made of an oleophobic material and contains at least a fluorine-containing compound or is made of a fluorine-containing compound. Thus, the separated oil drops can be quickly settled to be separated from the filter module, and the service life of the filter module can be prolonged. The porous filter medium layer 101 is made of an oleophilic material, and at least contains glass fibers, or is made of glass fibers.
In order to ensure the integrity of the filtration module and eliminate the influence of the separation performance caused by the occurrence of a large gap when the microporous channel layers 102 are dislocated, the microporous channel layers 102 and the porous filtration medium layers 101 and the two adjacent microporous channel layers 102 are fixedly connected with each other, for example, an adhesion process can be adopted to fix the microporous channel layers 102 and the porous filtration medium layers 101 and the two adjacent microporous channel layers 102 by adhesion.
In other embodiments, the flow channels may be configured like a continuous S-shape or Z-shape, as shown in fig. 5, where a bypass filter layer is disposed between two porous filter media layers 101, where the bypass filter layer is made of an oil-resistant and temperature-resistant material 103, for example, a glass fiber material, and a plurality of channels 103a may be formed in the oil-resistant and temperature-resistant material 103 at intervals, where the plurality of channels 103a are mutually communicated via the porous filter media layers 101 to form a flow channel like a continuous Z-shape.
Referring to fig. 6 to 7, the above wall-type flow-around module is applied to an oil-gas separator including a tank 1 and a center frame 2, the center frame 2 is installed in the tank 1, and the above wall-type flow-around filter module 100 is wound around the center frame 2.
Specifically, the central skeleton 2 includes an upper end cover 2-1, and a central support tube 2-2 disposed on the upper end cover 2-1, the wall type bypass filtration module 100 is wound on the central support tube 2-2 and is abutted against the upper end cover 2-1, and a plurality of air outlet holes 2-1a are disposed on the upper end cover 2-1, in this embodiment, an axial air inlet mode is adopted, mixed gas is introduced into the lower end of the wall type bypass module 100 axially, and the filtered gas enters the air outlet tube 1-1 at the upper end of the tank body 1 through the air outlet holes 2-1a on the upper end cover 2-1 and is discharged.
In order to facilitate the installation of the central framework 2, a circle of clamp 4 in sealing fit with the tank body 1 is arranged on the periphery of the upper end cover 2-1, for example, a sealing ring 5 is arranged between the clamp 4 and the upper end of the tank body 1, the upper end cover 2-1 is in buckling connection with the clamp 4, the buckling connection is not described in detail in the prior art, and a gap is arranged between the clamp 4 and the outer side wall of the wall-type bypass module 100, so that glue is conveniently poured to connect the wall-type bypass module 100 with the clamp 4 to realize good sealing.
In order to improve the compactness of the oil-gas separator, the lower end of the central supporting tube 2-2 is abutted to the bottom of the tank body 1, at least one exhaust port 2-2a is arranged on the side wall of the lower portion of the central supporting tube 2-2, meanwhile, a safety valve 3 is arranged at the upper end of the central supporting tube 2-2, when the internal pressure of the oil-gas separator is overlarge, mixed gas enters the central supporting tube 2-2 through the exhaust port 2-2a and is ejected up by the safety valve 3 and then enters the air outlet tube 1-1 to be discharged.
The safety valve 3 comprises a valve cover 3-1 and a plurality of supporting legs 3-2 arranged at the lower end of the valve cover 3-1 at intervals along the circumferential direction, the valve cover 3-1 covers a pipe orifice at the upper end of the central supporting tube 2-2, a circle of boss 2-2b is arranged on the inner wall of the pipe orifice, meanwhile, a clamping leg 3-2a matched with the boss 2-2b is arranged at the lower end of the supporting leg 3-2, when the air pressure in the oil-gas separator is overlarge, mixed gas enters the central supporting tube 2-2 through the air outlet 2-2a to jack up the safety valve 3, the clamping leg 3-2a is abutted on the boss 2-2b to prevent the safety valve 3 from being separated from the central supporting tube 2-2, the mixed gas is discharged through a gap between the two adjacent supporting legs 3-2, and when the air pressure in the oil-gas separator is recovered to be normal, the safety valve 3 falls down to reset.
Referring to fig. 8-9, another embodiment of the oil-gas separator comprises a tank 1 and a filter element mounting member 6 mounted in the tank 1, at least one porous filter medium layer 101 and at least one bypass filter layer are stacked in the filter element mounting member 6.
Specifically, the filter element mounting member 6 includes an end cap portion 6-1, and a mounting portion 6-2 disposed at a lower end of the end cap portion 6-1, a mounting opening into which the wall-type bypass module 100 extends is provided on a side wall of the mounting portion 6-2, an oil return opening 6-2a is provided at a bottom of the mounting portion 6-2, and a gas outlet 6-1a is provided in the end cap portion 6-1. In this example, by adopting a side air intake mode, mixed gas enters through the side wall of the mounting portion 6-2, separated oil mist particles drop to a bottom of the mounting portion 6-2 and are discharged through the oil return opening 6-2a, and filtered gas is discharged through the gas outlet 6-1 a.
Referring to fig. 10, the present invention also provides a wall-type bypass filter material, which includes a porous filter medium layer 101, and microporous channel layers 102 disposed on both sides of the porous filter medium layer 101 in the thickness direction, wherein the microporous channel layers 102 have a microporous mesh structure. Preferably, the microporous channel layer 102 is laminated to the surface of the porous filter media layer 101. The wall-type bypass filter module 100 can be obtained by winding or stacking the wall-type bypass filter materials in sequence, and ensuring that the micropores of two adjacent microporous channel layers 102 are arranged in a staggered manner, so that the production is convenient.
The above examples are provided for illustrating the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the contents of the present invention and to implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.
Claims (8)
1. The wall type bypass filter module is characterized by comprising a porous filter medium layer (101) and at least one bypass filter layer, wherein the bypass filter layer is provided with a flow passage for the air supply flow to bypass, and the flow passage is provided with an air inlet and an air outlet;
the bypass filtration layer is arranged between two porous filter media layers (101), and the flow channel is communicated with the porous filter media layers (101);
the flow-around filter layer comprises two layers of micropore channel layers (102), the micropore channel layers (102) are of micropore net structures, and micropores of the two layers of micropore channel layers (102) are staggered with each other to form the flow channel between the two layers of micropore channel layers (102);
The microporous channel layers (102) and the porous filter medium layers (101) are fixedly connected with each other and the two adjacent microporous channel layers (102);
the bypass filter layer is made of oleophobic materials, and the porous filter medium layer (101) is made of oleophilic materials.
2. The wall-bypass filtration module as recited in claim 1, wherein the micropores are one or more of square, round, oval, and diamond.
3. An oil-gas separator characterized by comprising the wall-type bypass filter module according to claim 1 or 2.
4. An oil-gas separator according to claim 3, comprising a tank (1) and a central skeleton (2), wherein the central skeleton (2) is installed in the tank (1), and the porous filter medium layer (101) and at least one layer of the bypass filter layer are wound around the central skeleton (2) in the circumferential direction.
5. The oil-gas separator according to claim 4, wherein the central framework (2) comprises an upper end cover (2-1) and a central supporting tube (2-2) arranged on the upper end cover (2-1), the porous filter medium layer (101) and at least one layer of flow-around filter layer are wound on the central supporting tube (2-2) and are abutted to the upper end cover (2-1), a plurality of air outlet holes (2-1 a) are formed in the upper end cover (2-1), a circle of clamping hoop (4) in sealing fit with the tank body (1) is arranged on the periphery of the upper end cover (2-1), and the upper end cover (2-1) is in buckling connection with the clamping hoop (4).
6. The oil-gas separator according to claim 5, wherein the lower end of the central support tube (2-2) is abutted to the bottom of the tank body (1), at least one exhaust port (2-2 a) is arranged on the side wall of the lower portion of the central support tube (2-2), and a safety valve (3) is arranged at the upper end of the central support tube (2-2).
7. An oil and gas separator according to claim 3, comprising a tank and a cartridge mount (6) mounted in the tank (1), the porous filter media layer (101), at least one bypass filter layer being arranged in a stack in the cartridge mount (6).
8. The oil-gas separator according to claim 7, wherein the filter element mounting member (6) comprises an end cover part (6-1) and a mounting part (6-2) arranged at the lower end of the end cover part (6-1), a mounting opening into which the wall-type bypass filter module extends is formed in the side part of the mounting part (6-2), an oil return opening (6-2 a) is formed in the bottom of the mounting part (6-2), and a gas outlet (6-1 a) is formed in the end cover part (6-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110293320.0A CN112922694B (en) | 2021-03-18 | 2021-03-18 | A wall-type flow-around filter module, filter material and oil-gas separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110293320.0A CN112922694B (en) | 2021-03-18 | 2021-03-18 | A wall-type flow-around filter module, filter material and oil-gas separator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112922694A CN112922694A (en) | 2021-06-08 |
| CN112922694B true CN112922694B (en) | 2025-02-28 |
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Citations (3)
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| CN2716516Y (en) * | 2004-07-01 | 2005-08-10 | 洪志才 | Balanced type oil-gas separator |
| CN105749622A (en) * | 2016-04-29 | 2016-07-13 | 北京欧洛普过滤技术开发公司 | Multilayer fiber composite filter material |
| CN215170268U (en) * | 2021-03-18 | 2021-12-14 | 苏州达菲特过滤技术股份有限公司 | Wall type streaming filter module, filter material and oil-gas separator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2727405Y (en) * | 2004-09-15 | 2005-09-21 | 重庆宗申技术开发研究有限公司 | Breathing device for internal combustion engine |
| JP4600826B2 (en) * | 2005-10-18 | 2010-12-22 | 日立金属株式会社 | Ceramic honeycomb filter |
| CN105422215B (en) * | 2015-11-13 | 2018-01-26 | 浙江三好汽车部件有限公司 | A kind of oil-gas separator composition and oil-gas separation method thereof |
| CN206613328U (en) * | 2017-03-30 | 2017-11-07 | 北京质享科技有限公司 | A kind of airstrainer and air purifier |
| DE112018002354T5 (en) * | 2017-06-20 | 2020-01-23 | Cummins Filtration Ip, Inc. | AXIALSTROMZENTRIFUGALABSCHEIDER |
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|---|---|---|---|---|
| CN2716516Y (en) * | 2004-07-01 | 2005-08-10 | 洪志才 | Balanced type oil-gas separator |
| CN105749622A (en) * | 2016-04-29 | 2016-07-13 | 北京欧洛普过滤技术开发公司 | Multilayer fiber composite filter material |
| CN215170268U (en) * | 2021-03-18 | 2021-12-14 | 苏州达菲特过滤技术股份有限公司 | Wall type streaming filter module, filter material and oil-gas separator |
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