An oil-gas separator and its non-disassembling backpressure regulating component

Abstract

The present invention discloses an oil-gas separator and a backpressure regulating assembly thereof without disassembly, specifically relating to the field of backpressure regulation of oil-gas separators. It includes a main body mechanism, which comprises a housing. A ventilation pipe is connected and arranged at the top of the housing, and an air outlet pipe is connected and arranged at the top of the housing. An oil discharge pipe is fixedly installed at the bottom of the housing. A separation mechanism is arranged inside the main body mechanism. The separation mechanism includes a first oil filter plate installed in a vertically sliding state in the inner cavity of the housing, and a second oil filter plate is fixedly installed on the outer wall of the ventilation pipe. By making the filter holes on the first auxiliary baffle and the second auxiliary baffle coincide, and when the limit type rotating block rotates, the first supporting rod drives the overall height of the first oil filter plate to be adjusted, so that the oil-gas mixture is hindered by obstacles and the pressure applied in the direction opposite to the movement direction is changed, which is more convenient for actual use.

Description

Technical Field

[0001] The present invention relates to the technical field of backpressure regulation of oil-gas separators. More specifically, the present invention relates to an oil-gas separator and a backpressure regulation assembly thereof that can be adjusted without disassembly. Background Art

[0002] Backpressure refers to the pressure at the back end, which is usually used to describe the pressure (greater than the local atmospheric pressure) opposite to the flow direction exerted on the fluid discharged from the system at the outlet or the secondary side. Generally, it refers to the pressure opposite to the flow direction exerted on the moving fluid in a closed container along its path (such as a pipeline or a ventilation path) due to the obstruction of an obstacle or a sharp turn. It is also usually used to describe the pressure of the fluid discharged from the system at the outlet or the secondary side (greater than the local atmospheric pressure). Backpressure usually refers to the suction pressure of a compressor. Sometimes, a compressor has to bear several different storage temperatures. The evaporation temperature of the high-temperature storage is high, and the evaporation temperature of the low-temperature storage is low. When the compressor operates, it is based on the evaporation pressure of the low-temperature storage. Therefore, the suction pressure is relatively low. At this time, a backpressure valve has to be installed on the outlet pipeline of the evaporator that needs to maintain a higher evaporation temperature to keep the pressure in front of the valve within a given range. The pressure after throttling by the valve is equal to the suction pressure, so as to ensure that each evaporator of the system operates under its respective working conditions, that is, to convert the high backpressure into low backpressure. This is called backpressure regulation.

[0003] Chinese Patent with application number CN115624831A discloses an oil-gas separator, which relates to the technical field of oil-gas separation. It includes a bottom plate, and the surface of the bottom plate is fixed with a housing by screws. Multiple groups of oil-filtering plates are fixed inside the housing, and an air inlet and an air outlet are respectively arranged at both ends of the housing. For this oil-gas separator, the protective baffle assembly can protect the spraying plate during oil-gas separation. When it is necessary to wash the oil-filtering plates, with the help of the moving assembly, the protective baffle assembly can be automatically opened and fitted to the oil-filtering plates for washing. At the same time, the components arranged inside the cleaning liquid preparation and spraying tank can automatically prepare and spray the cleaning liquid, and only one driving source is needed to realize the operation of multiple processes. It is convenient to use, and the concept is ingenious, saving energy consumption. After the oil-filtering plates are used for a long time, they can be automatically cleaned without manual operation, greatly reducing the labor intensity, and is suitable for use in relatively large oil-gas separators.

[0004] Chinese Patent with application number CN114427488A discloses an oil-gas separator, an engine and a control method. The oil-gas separator includes a filtering assembly, a bottom plate and a first driving assembly. The filtering assembly includes a first baffle and a filtering element. The first baffle and the filtering element are arranged at intervals on the bottom plate, and the first baffle can rotate relative to the bottom plate. The first driving assembly drives the first baffle to rotate to adjust the included angle between the first baffle and the filtering element. The oil-gas separator of this invention can effectively separate water and engine oil in the air flow.

[0005] When an oil-gas separator similar to the above is currently in use and the back pressure of the oil-gas separator needs to be adjusted, the existing back pressure adjustment methods for oil-gas separators mostly involve disassembling the entire separator, increasing or decreasing the internal filter plates, and replacing the sizes of the filter holes to make it suitable for use under different pressures. However, using this method, on the one hand, it is easy to lead to low work efficiency, and on the other hand, repeated disassembly and installation are likely to reduce the service life of the oil-gas separator, which is not convenient for actual use.

[0006] Moreover, for an oil-gas separator installed at the breather port of the engine crankcase or outside the exhaust pipe, during actual use, in addition to considering the separation of oil and gas and reducing disassembly problems, it is also necessary to consider improving the purity and efficiency of oil-gas separation.

[0007] Therefore, the present invention proposes an oil-gas separator and its back pressure adjustment assembly without disassembly to solve the above problems. Summary of the Invention

[0008] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides an oil-gas separator and its back pressure adjustment assembly without disassembly to improve the purity of oil-gas separation and achieve automatic pressure regulation without disassembly.

[0009] To achieve the above object, the present invention provides the following technical solution: An oil-gas separator, a main body mechanism, which includes a housing, a ventilation pipe is connected and communicated at the top of the housing, a rotary spraying device is installed in the housing cavity part of the ventilation pipe, an air outlet pipe is connected and communicated at the top of the housing, and an oil discharge pipe is fixedly installed at the bottom of the housing;

[0010] A separation mechanism, which is arranged inside the main body mechanism, the separation mechanism includes a first oil filter plate, the first oil filter plate is slidably installed up and down in the housing cavity, a second oil filter plate is fixedly installed on the outer wall of the ventilation pipe, a first auxiliary baffle is fixedly connected to the top of the first oil filter plate, a third limit chute is opened on the first auxiliary baffle, a second auxiliary baffle is rotatably installed in the third limit chute, and a plurality of filter holes are opened inside both the first auxiliary baffle and the second auxiliary baffle;

[0011] It further includes a first adjustment mechanism, which is fixedly connected to the bottom of the separation mechanism.

[0012] As a further solution of the present invention, a plurality of filter holes opened inside the first auxiliary baffle and the second auxiliary baffle are arranged in a one-to-one correspondence, and the filter holes opened on the first auxiliary baffle and the second auxiliary baffle are arranged in an overlapping state under normal conditions, the filter holes are conical, a second auxiliary baffle is rotatably connected in the third limit chute, and an auxiliary rotating plate is fixedly installed on the second auxiliary baffle.

[0013] As a further solution of the present invention, the second oil filtering plate is arranged in a funnel shape, and the first oil filtering plate, the first auxiliary baffle and the second auxiliary baffle are all arranged in a flat plate state.

[0014] As a further solution of the present invention, the rotary spraying device includes a rotating block, a connecting rotating rod is rotationally and sealingly connected inside the rotating block, the axis of the connecting rotating rod is hollow, and the upper end is fixedly connected to a ventilation pipe. A chamber is provided inside the rotating block, and spraying barrels are evenly fixed around the rotating block. The spraying barrels are communicated with the inner cavity of the rotating block and the connecting rotating rod. A plurality of spraying heads are evenly fixed along the axis and obliquely downward on the spraying barrels, and spraying holes are provided on the spraying heads.

[0015] As a further solution of the present invention, the oil and gas sprayed by the spraying head is sprayed on the auxiliary rotating plate through the spraying holes. During the spraying process, the auxiliary rotating plate drives the second auxiliary baffle to rotate relative to the first auxiliary baffle under the action of the oil and gas.

[0016] As a further solution of the present invention, a plurality of filtering holes are provided on both the second auxiliary baffle and the first auxiliary baffle. When the second auxiliary baffle slides in the third limiting chute of the first auxiliary baffle, the plurality of filtering holes of the first auxiliary baffle and the second auxiliary baffle are misaligned up and down, so that the oil and gas passing through the second auxiliary baffle and the first auxiliary baffle form a low-pressure state.

[0017] The present invention also provides a non-detachable backpressure adjustment assembly for an oil-gas separator, which is used to adjust the backpressure in the oil-gas separator. A limiting support sleeve is fixedly installed at the bottom of the outer shell. The inside of the limiting support sleeve is hollow, and the first adjustment mechanism includes a limiting rotating block rotatably installed inside the limiting support sleeve. A support pipe fixedly connected to the bottom of the limiting support sleeve is rotatably installed at the bottom of the limiting rotating block. The inside of the limiting rotating block and the support pipe are both hollow, and a first supporting rod fixedly connected to the first oil filtering plate is installed in the limiting rotating block and the support pipe in a vertically sliding state. A telescopic spring fixedly connected to the limiting support sleeve is fixedly installed at the bottom of the first supporting rod. A first limiting chute is provided on the outer wall of the support pipe in a vertical state, and a second limiting chute parallel to the first limiting chute is provided on the inner wall of the limiting support sleeve. An engaging slider is slidably installed in the inner cavity of the second limiting chute. One side of the engaging slider is fixedly installed with an engaging frame that penetrates the first limiting chute and is fixedly connected to the first supporting rod. A spiral through groove is provided on the outer wall of the limiting rotating block, and an engaging sliding frame fixedly connected to the engaging slider is slidably installed in the inner cavity of the spiral through groove. A first gear is fixedly installed at the bottom of the limiting rotating block, and a second gear is meshed with the outer wall of the first gear. A first adjustment rotating rod rotatably connected to the outer shell is fixedly installed at the bottom of the second gear.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. By arranging the first auxiliary baffle and the second auxiliary baffle that are parallel to each other, when the second auxiliary baffle is rotated and adjusted, the filter holes provided on the first auxiliary baffle and the second auxiliary baffle coincide, so as to adjust the size of the filter holes between the first auxiliary baffle and the second auxiliary baffle, and then adjust the back pressure and perform oil-gas separation. The adjustment is very convenient and more convenient for actual use.

[0020] 2. By arranging a rotatable limit-type rotating block and opening a spiral through groove on the outer wall of the limit-type rotating block, when the limit-type rotating block rotates, the connecting-type sliding frame can move along the track of the spiral through groove, and then synchronously change the height of the connecting-type slider. When combined with the arrangement of the connecting frame, the overall height of the first supporting rod driving the first oil filter plate is adjusted, the distance between the second auxiliary baffle and the ventilation pipe is changed, and the pressure applied to the oil-gas mixture in the opposite direction to the movement direction due to the obstruction of the obstacle is changed. The overall adjustment is very convenient, and there is no need to disassemble the whole shell and remove and reinstall the first oil filter plate, the first auxiliary baffle and the second auxiliary baffle, which is more beneficial to improving work efficiency.

[0021] 3. By arranging a rotary spraying device, and the rotary spraying device cooperates with the separation mechanism. During use, the oil-gas is transported to the rotary spraying device through the ventilation pipe, passes through the connecting rotating rod, the rotating block and the spraying barrel, and the oil-gas is sprayed out through the spraying holes via the spraying head. During the spraying process, due to the action of centrifugal force, the spraying barrel rotates under the action of the spraying head through the rotating block, and rotates counterclockwise around the connecting rotating rod together with the rotating block, and sprays the oil-gas all around through the spraying holes. The oil-gas passes through the second auxiliary baffle installed in the third limit sliding groove on the first auxiliary baffle, and the spraying head sprays on the auxiliary rotating plate, so that the oil-gas acts on the auxiliary rotating plate. While the oil-gas is separated, under the action of the auxiliary rotating plate, the second auxiliary baffle makes a sliding rotation movement in the third limit sliding groove, so that the filter holes provided on the first auxiliary baffle and the second auxiliary baffle periodically make relative movements of concentricity and non-concentricity, so that the passing oil-gas is depressurized through the filter holes, and the oil-gas is further separated by the first oil filter plate. Part of the upper gas is further blocked and filtered by the second oil filter plate, thereby effectively improving the purity of oil-gas separation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the internal structure of the present invention.

[0023] Figure 2 It is a partial structural cross-sectional view of the limit-type support sleeve and the separation mechanism of the present invention.

[0024] Figure 3 For the present invention Figure 2 is an enlarged view of the structure of part A.

[0025] Figure 4 is a partial structural cross-sectional view of the outer shell and the second auxiliary baffle of the present invention.

[0026] Figure 5 For the present invention Figure 4 is an enlarged view of the structure of part B.

[0027] Figure 6 is a partial structural cross-sectional view of the separation mechanism and the first adjustment mechanism of the present invention.

[0028] Figure 7 For the present invention Figure 6 is an enlarged view of the structure of part C.

[0029] Figure 8 is a partial cross-sectional structural schematic diagram of the rotary spraying device of the present invention.

[0030] Figure 9 is a schematic diagram of the whole of the present invention.

[0031] Reference numerals are: 1, main body mechanism; 101, outer shell; 102, ventilation pipe; 103, air outlet pipe; 104, oil drain pipe; 105, limit type support sleeve; 2, separation mechanism; 21, first oil filter plate; 22, second oil filter plate; 23, first auxiliary baffle; 231, third limit chute; 24, second auxiliary baffle; 241, auxiliary rotating plate; 25, filter hole; 3, first adjustment mechanism; 31, limit type rotating block; 32, support pipe; 33, first supporting rod; 34, telescopic spring; 35, first limit chute; 36, second limit chute; 37, connecting type slider; 38, connecting frame; 39, connecting type sliding frame; 310, spiral through groove; 311, first gear; 312, second gear; 313, first adjustment rotating rod; 4, rotary spraying device; 41, rotating block; 412, connecting rotating rod; 42, spraying bucket; 43, spraying head; 431, spraying hole. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] Embodiment 1

[0034] Referring to the accompanying drawings of the specification Figure 1-8, An oil-gas separator according to an embodiment of the present invention is as follows Figure 1 As shown, it includes: a main body mechanism 1, which includes a housing 101. A ventilation pipe 102 is connected and communicated at the top of the housing 101, an air outlet pipe 103 is connected and communicated at the top of the housing 101, and an oil drain pipe 104 is fixedly installed at the bottom of the housing 101. During actual use, the oil and gas are discharged into the inner cavity of the housing 101 through the ventilation pipe 102. The separated oil is discharged through the oil drain pipe 104, and the gas is discharged from the air outlet pipe 103.

[0035] As Figure 2 , Figure 4 As shown, it further includes a separation mechanism 2, which is arranged inside the main body mechanism 1. The separation mechanism 2 includes a first oil filter plate 21 slidably installed up and down in the inner cavity of the housing 101. A second oil filter plate 22 is fixedly installed on the outer wall of the ventilation pipe 102. A first auxiliary baffle 23 is fixedly connected to the top of the first oil filter plate 21. A third limit chute 231 is opened at the top of the first auxiliary baffle 23. A second auxiliary baffle 24 is rotatably installed in the third limit chute 231. A plurality of filter holes 25 are opened in both the first auxiliary baffle 23 and the second auxiliary baffle 24. When the oil and gas are discharged into the inner cavity of the housing 101 through the ventilation pipe 102, they are sequentially filtered by the second auxiliary baffle 24, the first auxiliary baffle 23, and the first oil filter plate 21, and continuously fall by their own weight until the separated oil falls to the bottom of the housing 101. Among them, the separated gas rises and is filtered again by the second oil filter plate 22.

[0036] At the same time, combined with Figure 1 , Figure 2 As shown, it further includes a first adjustment mechanism 3, which is fixedly connected to the bottom of the separation mechanism 2. The first adjustment mechanism 3 is used to drive the first oil filter plate 21 to move up and down as a whole.

[0037] Furthermore, combined with Figure 4-5 As shown, the multiple filter holes 25 opened in the first auxiliary baffle 23 and the second auxiliary baffle 24 are arranged in a one-to-one correspondence, and the filter holes 25 opened in the first auxiliary baffle 23 and the second auxiliary baffle 24 are overlapped with each other under normal conditions and the filter holes 25 are conical. The purpose of such a setting is that the filter holes 25 on the first auxiliary baffle 23 and the second auxiliary baffle 24 overlap with each other under normal conditions, and the exposed blank part is larger, so as to facilitate the natural flow of the oil and gas. When the second auxiliary baffle 24 is rotated, the filter holes 25 on the first auxiliary baffle 23 and the second auxiliary baffle 24 are displaced, and then the exposed blank part gradually shrinks, then the flow rate of the oil and gas can be synchronously slowed down, so as to achieve the purpose of initially adjusting the back pressure inside the housing 101. At the same time, referring to Figure 2As shown, the second oil filter plate 22 is arranged in a funnel shape. The purpose of this setting is to increase the contact range when the gas rises and contacts the second oil filter plate 22. The first oil filter plate 21, the first auxiliary baffle 23, and the second auxiliary baffle 24 are all arranged in a flat plate state. The purpose of this setting is to make the spraying of the oil-gas mixture onto the surface of the second auxiliary baffle 24 more uniform and prevent it from accumulating together. As a result, the oil and other impurities in the oil-gas mixture can be multi-layer filtered through the second auxiliary baffle 24, the first auxiliary baffle 23, and the first oil filter plate 21 in sequence, and the problem of the filtered impurities accumulating in one place and affecting subsequent use is avoided, thereby effectively filtering the oil and gas.

[0038] Embodiment 2

[0039] Since air pressure has a great impact on the separation of oil and gas, making the oil and gas extremely unstable during the separation process, and after using for a period of time, it is necessary to replace a large number of components, and it is rather troublesome to replace the whole set of equipment. Therefore, further improvements have been made.

[0040] On the basis of Embodiment 1, referring to Figure 2 , this embodiment provides a disassembly-free backpressure adjustment assembly for an oil-gas separator, including a first adjustment mechanism 3 and a separation mechanism 2. As shown in Figure 4-6 , the separation mechanism 2 includes a first auxiliary baffle 23. A second auxiliary baffle 24 is rotatably installed in the third limit chute 231 on the first auxiliary baffle 23. The second auxiliary baffle 24 rotates and adjusts on the top of the first auxiliary baffle 23 as a whole, so that the filter holes 25 provided on the first auxiliary baffle 23 and the second auxiliary baffle 24 coincide, thereby achieving the purpose of adjusting the size of the filter holes between the first auxiliary baffle 23 and the second auxiliary baffle 24, further adjusting the backpressure and separating the oil and gas. It is very convenient to adjust and more convenient for actual use.

[0041] Furthermore, as shown in Figure 3 , a limit-type support sleeve 105 is fixedly installed at the bottom of the housing 101. The inside of the limit-type support sleeve 105 is hollow, and the first adjustment mechanism 3 includes a limit-type rotating block 31 rotatably installed inside the limit-type support sleeve 105. As shown in Figure 7As shown in the figure, a support pipe 32 fixedly connected to the bottom of the limit support sleeve 105 is rotatably installed at the bottom of the limit rotating block 31. The interiors of both the limit rotating block 31 and the support pipe 32 are hollow. And a first support rod 33 fixedly connected to the first oil filter plate 21 is installed in the limit rotating block 31 and the support pipe 32 in a vertically sliding state. A telescopic spring 34 fixedly connected to the limit support sleeve 105 is fixedly installed at the bottom of the first support rod 33. The purpose of such a setting is that when the support pipe 32 is pushed or pulled up and down, the heights of the first oil filter plate 21 and the first auxiliary baffle 23 and the second auxiliary baffle 24 provided on its top can be adjusted synchronously. Furthermore, the distance between the second auxiliary baffle 24 and the ventilation pipe 102 is changed, so that the oil-gas mixture is hindered by an obstacle and the pressure applied in the direction opposite to the movement direction is changed, thereby achieving the purpose of adjusting the back pressure. At the same time, referring to Figure 7 As shown in the figure, a first limit sliding groove 35 is vertically provided on the outer wall of the support pipe 32. A second limit sliding groove 36 parallel to the first limit sliding groove 35 is provided on the inner wall of the limit support sleeve 105. An articulated slider 37 is slidably installed in the inner cavity of the second limit sliding groove 36. One side of the articulated slider 37 is fixedly installed with an articulated frame 38 that passes through the first limit sliding groove 35 and is fixedly connected to the first support rod 33. When the articulated frame 38 moves up and down, the articulated slider 37 and the first support rod 33 as a whole can be driven to move up and down synchronously. Combining Figure 3 As shown in the figure, a spiral through groove 310 is provided on the outer wall of the limit rotating block 31. An articulated sliding frame 39 fixedly connected to the articulated slider 37 is slidably installed in the inner cavity of the spiral through groove 310. The purpose of such a setting is that when the limit rotating block 31 rotates, the spiral through groove 310 rotates synchronously, and then the contact position with the articulated sliding frame 39 changes. Furthermore, the articulated slider 37 is synchronously displaced up and down, and then the height of the first support rod 33 is changed synchronously through the articulated frame 38.

[0042] Further, a first gear 311 is fixedly installed at the bottom of the limit type rotating block 31. A second gear 312 is meshed with the outer wall of the first gear 311. A first adjusting rotating rod 313 rotatably connected to the housing 101 is fixedly installed at the bottom of the second gear 312. The purpose of such a setting is that when the first adjusting rotating rod 313 is rotated, the second gear 312 can be driven to drive the first gear 311 to rotate, and then the entire limit type rotating block 31 can be synchronously rotated inside the limit type supporting sleeve 105, so that the connecting type sliding frame 39 can move along the trajectory of the spiral through groove 310, and then the height of the connecting type sliding block 37 can be synchronously changed. When combined with the setting of the connecting frame 38, the overall height of the first supporting rod 33 driving the first oil filter plate 21 can be adjusted. The overall adjustment is very convenient, and there is no need to disassemble the entire housing 101 and remove and reinstall the first oil filter plate 21, the first auxiliary baffle 23 and the second auxiliary baffle 24, which is more conducive to improving work efficiency and more convenient for actual use.

[0043] Embodiment III

[0044] During the actual use process, there are many impurities in the oil and gas. However, these impurities have a great impact on the purity of oil and gas separation. Therefore, in order to further improve the purity of oil and gas separation in this embodiment, further improvements are made.

[0045] On the basis of the above, combined with Figure 1 、 Figure 3 、 Figure 5 、 Figure 8 and Embodiment I, by setting the rotary injection device 4, and the rotary injection device 4 cooperating with the separation mechanism 2. During the use process, the oil and gas are transported to the rotary injection device 4 through the air pipe 102, and through the connecting rotating rod 412, the rotating block 41 and the injection barrel 42, the oil and gas are ejected through the injection head 43 via the injection holes 431. During the injection process, due to the action of centrifugal force, the injection barrel 42 rotates under the action of the injection head 43 through the rotating block 41, and rotates counterclockwise around the connecting rotating rod 412 together with the rotating block 41, and the oil and gas are ejected in all directions through the injection holes 431. The oil and gas pass through the second auxiliary baffle 24 installed in the third limit sliding groove 231 on the first auxiliary baffle 23, and the injection head 431 ejects the auxiliary rotating plate 241, so that the oil and gas act on the auxiliary rotating plate 241. While the oil and gas are separated, under the action of the auxiliary rotating plate 241, the second auxiliary baffle 24 makes a sliding and rotating movement in the third limit sliding groove 231, so that the filter holes 25 opened on the first auxiliary baffle 23 and the second auxiliary baffle 24 periodically make relative movements of concentricity and non - concentricity, so that the passing oil and gas are depressurized through the filter holes 25, and the oil and gas are further separated by the first oil filter plate 21 to improve the separation purity. Part of the upper gas is further blocked and filtered by the second oil filter plate 22 to further improve the purity of oil and gas separation.

[0046] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. An oil-gas separator, characterized in that, Including: The main body mechanism, which includes a housing. A ventilation pipe is connected and communicated at the top of the housing. A rotary spraying device is installed in the cavity part of the housing on the ventilation pipe. An air outlet pipe is connected and communicated at the top of the housing. An oil drain pipe is fixedly installed at the bottom of the housing. The separation mechanism, which is arranged inside the main body mechanism. The separation mechanism includes a first oil filter plate. The first oil filter plate is slidably installed up and down in the housing cavity. A second oil filter plate is fixedly installed on the outer wall of the ventilation pipe. A first auxiliary baffle is fixedly connected to the top of the first oil filter plate. A third limit chute is opened on the first auxiliary baffle. A second auxiliary baffle is rotatably installed in the third limit chute. A plurality of filter holes are opened in both the first auxiliary baffle and the second auxiliary baffle. It also includes a first adjustment mechanism, which is fixedly connected to the bottom of the separation mechanism. The rotary spraying device includes a rotating block. A connecting rotating rod is rotationally and sealingly connected inside the rotating block. The axis of the connecting rotating rod is hollow, and the upper end is fixedly connected to the ventilation pipe. A cavity is opened in the rotating block. Spraying barrels are evenly fixed around the rotating block. The spraying barrels are communicated with the inner cavity of the rotating block and the connecting rotating rod. A plurality of spray heads are evenly fixed along the axis and obliquely downward on the spraying barrels. Spray holes are opened on the spray heads. The oil and gas sprayed by the spray heads are sprayed on the auxiliary rotating plate through the spray holes. During the spraying process, the auxiliary rotating plate drives the second auxiliary baffle to rotate relative to the first auxiliary baffle under the action of the oil and gas. A plurality of filter holes are opened in both the second auxiliary baffle and the first auxiliary baffle. When the second auxiliary baffle slides in the third limit chute of the first auxiliary baffle, the plurality of filter holes of the first auxiliary baffle and the second auxiliary baffle are misaligned up and down, so that the oil and gas passing through the second auxiliary baffle and the first auxiliary baffle form a low-pressure state. It also includes a back pressure adjustment component. The back pressure adjustment component includes a limit type support sleeve fixedly installed at the bottom of the housing. The inside of the limit type support sleeve is hollow. And the first adjustment mechanism includes a limit type rotating block rotatably installed inside the limit type support sleeve. A support pipe fixedly connected to the bottom of the limit type support sleeve is rotatably installed at the bottom of the limit type rotating block. The inside of both the limit type rotating block and the support pipe is hollow. And a first supporting rod fixedly connected to the first oil filter plate is slidably installed up and down inside the limit type rotating block and the support pipe. A telescopic spring fixedly connected to the limit type support sleeve is fixedly installed at the bottom of the first supporting rod.

2. The oil-gas separator according to claim 1, characterized in that, A plurality of filter holes opened inside the first auxiliary baffle and the second auxiliary baffle are arranged in a one-to-one correspondence. And the filter holes opened on the first auxiliary baffle and the second auxiliary baffle are overlapped with each other under normal conditions. The filter holes are conical. A second auxiliary baffle is rotatably connected in the third limit chute. An auxiliary rotating plate is fixedly installed on the second auxiliary baffle.

3. An oil-gas separator according to claim 2, characterized in that, The second oil filter plate is arranged in a funnel shape. The first oil filter plate, the first auxiliary baffle and the second auxiliary baffle are all arranged in a flat plate state.

4. The oil-gas separator according to claim 3, characterized in that, A first limiting sliding groove is provided on the outer wall of the support pipe and is arranged vertically. A second limiting sliding groove parallel to the first limiting sliding groove is provided on the inner wall of the limiting support sleeve. An adapter slider is slidably installed in the inner cavity of the second limiting sliding groove. One side of the adapter slider is fixedly installed with an adapter frame that penetrates through the first limiting sliding groove and is fixedly connected to the first supporting rod. A spiral through groove is provided on the outer wall of the limiting rotating block, and an adapter sliding frame fixedly connected to the adapter slider is slidably installed in the inner cavity of the spiral through groove.

5. The oil-gas separator according to claim 4, characterized in that, A first gear is fixedly installed at the bottom of the limiting rotating block. A second gear is meshed with the outer wall of the first gear. A first adjusting rotating rod rotatably connected to the housing is fixedly installed at the bottom of the second gear.

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