A gas processing device for the production of oil return pipes for piston internal combustion engines

Abstract

The present invention relates to the field of solid-liquid separation technology, and in particular to a gas processing device for the production of a piston internal combustion engine oil return pipe, comprising a spray tower: a spray assembly is arranged on the top of the spray tower, and the spray assembly sprays a copper sulfate solution to the inside of the spray tower; two second sieve plates are matched with the horizontal cross-section inside the connection box, and the second sieve plate is provided with a first sieve plate near the inner wall of the connection box, and the second sieve plate is provided with a plurality of through-type second sieve holes, and the first sieve plate is provided with a plurality of first sieve holes evenly; the first sieve plate and the second sieve plate on the same side are arranged vertically to each other. The present invention sprays a copper sulfate solution into the spray tower to form a copper sulfide precipitate, and the precipitate needs to be separated from the solution in time, and the precipitate falls into the bottom connection box, and the precipitate is separated by the solid-liquid separation structure inside the connection box, and the waste liquid and the precipitate are collected separately to prevent the precipitate from clogging.

Description

Technical Field

[0001] The invention relates to the technical field of solid-liquid separation, and in particular to a gas processing device for producing an oil return pipe of a piston type internal combustion engine. Background Art

[0002] The oil return pipe is a component of the automobile engine fuel system. Its main function is to return the fuel with excess pressure formed after the fuel pump supplies fuel to the fuel tank through a specific pipeline, so as to adjust the fuel pressure, reduce fuel consumption, and ensure that the suction port of the injection pump will not produce vaporization and cavitation due to low oil pressure, ensure the continuity of the high-pressure oil pump supply, and make the engine work stably. Some oil return pipes are mainly composed of rubber materials. A large amount of gas will be generated during the preparation of rubber materials, and the gas also contains gases that are harmful to the environment.

[0003] The existing publication number is CN118320552A, and the name is a rubber production waste gas treatment device, which relates to the field of waste gas treatment devices, including a spray tower main body, a spray water tank, a spray connecting pipe, a spray drive water pump, a spray circulating water pump, a filter support net, a synergistic treatment mechanism and a reagent adding mechanism; the spray water tank is fixedly connected to the lower rear end of the spray tower main body; the spray connecting pipe is fixedly connected to the upper rear end of the spray tower main body; the spray drive water pump is fixedly connected to the top of the spray water tank; the spray circulating water pump is fixedly connected to the left side of the spray water tank; the filter support net is fixedly connected to the upper inner end of the spray tower main body; the synergistic treatment mechanism is arranged inside the spray tower main body; the reagent adding mechanism is arranged above the spray water tank, which reduces the volatilization consumption of the deodorant, ensures the treatment quality of the waste gas, and solves the problem that the deodorant in the existing spray water tank in the later stage is excessively diluted, resulting in poor deodorization effect and affecting the treatment quality of the waste gas.

[0004] In the above-mentioned prior art, spraying is adopted to contact the gas, and precipitates are generated after the gas and the spray liquid contact each other. These precipitates should be separated from the liquid solution in time, otherwise there will be a problem of blockage when the precipitation at the bottom of the spray tower reaches a certain amount. Summary of the invention

[0005] The purpose of the present invention is to solve the defect that the solid-liquid separation cannot be achieved in the prior art, and to propose a gas processing device for the production of the oil return pipe of a piston type internal combustion engine.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] Design a gas treatment device for the production of piston internal combustion engine oil return pipe, including a spray tower and a gas concentration box:

[0008] A spray assembly is provided on the top of the spray tower, and the spray assembly sprays the copper sulfate solution into the inner side of the spray tower;

[0009] The gas concentration box is connected to an air intake pipe assembly, and the air intake pipe assembly extends to the interior of the spray tower;

[0010] The bottom of the spray tower is externally connected to a connection box, and a solid-liquid separation structure is arranged inside the connection box for performing solid-liquid separation on the salt precipitate generated by the reaction;

[0011] The solid-liquid separation structure comprises a second sieve plate symmetrically rotated and arranged inside the connection box, when the two second sieve plates are in a horizontal state, the two second sieve plates match the horizontal cross-section inside the connection box, the second sieve plate is installed with a first sieve plate near the inner wall of the connection box, the second sieve plate is provided with a plurality of through-type second sieve holes, and the first sieve plate is evenly provided with a plurality of first sieve holes;

[0012] The first sieve plate and the second sieve plate on the same side are arranged vertically to each other, a round rod is horizontally installed at the connection between the first sieve plate and the second sieve plate on the same side, and one end of the round rod extends to the outside of the connecting box, the size of the first sieve hole is smaller than the size of the second sieve hole, and a transmission tooth is installed at the end position of the round rod, an electric telescopic rod is vertically installed on the outer wall of the connecting box, a moving frame is installed at the bottom of the electric telescopic rod, and racks are symmetrically arranged on both sides of the moving frame, and the racks and the transmission teeth are meshed with each other.

[0013] Preferably, a support pipe is vertically installed at the bottom of the spray tower, a gas concentration box is installed at the bottom of the support pipe, and multiple groups of adjustment structures are arranged on the support pipe;

[0014] The regulating structure includes a filter plate, holes and a discharge hole;

[0015] The filter plate is detachably mounted on the outer side of the support tube, the holes are provided on the filter plate, and the discharge holes are provided on the support tube between two adjacent filter plates.

[0016] Preferably, the spray assembly includes a liquid storage tank, a cover plate, a spray head and a spray rack;

[0017] The cover plate is detachably mounted on the spray tower, the liquid storage tank is mounted on the top of the cover plate, the spray frame penetrates the cover plate and is connected to the inside of the liquid storage tank, the spray head is fixedly mounted on the bottom of the spray frame, and the spray head sprays the copper sulfate solution in the liquid storage tank.

[0018] Preferably, the air intake pipe assembly includes a first air intake pipe and a second air intake pipe, the second air intake pipe is respectively interconnected with the gas concentration box and the first air intake pipe, and the inner diameter of the first air intake pipe is greater than the inner diameter of the second air intake pipe.

[0019] Preferably, the inner surface of the first air inlet pipe is provided with a plurality of irregular protrusions.

[0020] Preferably, a through-hole is provided at the bottom of the spray tower, the interior of the connection box is communicated with the interior of the spray tower via the through-hole, and a bottom plate is detachably mounted at the bottom of the connection box.

[0021] Preferably, the middle portion of the filter plate is recessed downwards, and a plurality of leakage holes are provided in a circular array at the middle portion of the filter plate.

[0022] The gas processing device for producing the oil return pipe of a piston type internal combustion engine proposed by the present invention has the beneficial effect that: the gas processing device for producing the oil return pipe of a piston type internal combustion engine is according to the chemical formula:

[0023] CuSO4+H2S=CuS↓+H2SO4

[0024] Copper sulfate solution is sprayed into the spray tower to form copper sulfide precipitation. The precipitate needs to be separated from the solution in time, and the precipitate falls into the connection box at the bottom. The precipitate is separated by the solid-liquid separation structure inside the connection box, and the waste liquid and precipitate are collected separately to prevent clogging by the precipitate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic structural diagram of a gas processing device for producing an oil return pipe of a piston type internal combustion engine proposed by the present invention.

[0026] Figure 2 This is a structural front view of a gas processing device for producing an oil return pipe of a piston type internal combustion engine proposed by the present invention.

[0027] Figure 3 The present invention is a structural side view of a gas processing device for producing an oil return pipe of a piston type internal combustion engine.

[0028] Figure 4 This is a structural rear view of a gas processing device for producing an oil return pipe of a piston type internal combustion engine proposed by the present invention.

[0029] Figure 5 This is a bottom view of the structure of a gas processing device for producing an oil return pipe of a piston type internal combustion engine proposed by the present invention.

[0030] Figure 6 This is a schematic diagram of the internal structure of a connection box of a gas processing device for producing an oil return pipe of a piston type internal combustion engine proposed by the present invention.

[0031] Figure 7This is a structural schematic diagram of the positions of the first sieve plate and the second sieve plate of a gas processing device for producing an oil return pipe of a piston type internal combustion engine proposed by the present invention.

[0032] Figure 8 This is a schematic structural diagram of an intake pipe assembly of a gas processing device for producing an oil return pipe of a piston type internal combustion engine proposed by the present invention.

[0033] In the figure: liquid storage tank 1, cover plate 2, spray tower 3, spray head 4, spray frame 5, support pipe 6, filter plate 7, hole 8, discharge hole 9, leakage hole 10, gas concentration box 11, through hole 12, first sieve plate 13, first sieve hole 14, round rod 15, second sieve plate 16, second sieve hole 17, transmission gear 18, drain pipe 19, bottom plate 20, connection box 21, first air inlet pipe 22, second air inlet pipe 23, electric telescopic rod 24, movable frame 25, rack 26, protrusion 27. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Example

[0035] Reference Figure 1-6 , a gas processing device for the production of a piston internal combustion engine oil return pipe, comprising a spray tower 3:

[0036] A spray assembly is provided on the top of the spray tower 3, and the spray assembly sprays the copper sulfate solution into the inside of the spray tower 3. The spray assembly includes a liquid storage tank 1, a cover plate 2, a spray head 4 and a spray rack 5. The liquid storage tank 1 is connected to the spray head 4 through the spray rack 5.

[0037] The cover plate 2 is detachably mounted on the spray tower 3, the liquid storage tank 1 is mounted on the top of the cover plate 2, the spray frame 5 penetrates the cover plate 2 and is connected with the inside of the liquid storage tank 1, the spray head 4 is fixedly mounted on the bottom of the spray frame 5, and the spray head 4 sprays the copper sulfate solution in the liquid storage tank 1 with the help of a pump body.

[0038] The gas concentration box 11 is connected to an air intake pipe assembly, and the air intake pipe assembly extends to the interior of the spray tower 3 .

[0039] Most of the oil return pipes on the market are made of rubber. A large amount of gas will be generated during the production and preparation of rubber. The gas contains hydrogen sulfide gas, which is toxic and needs to be purified before discharge.

[0040] The bottom of the spray tower 3 is externally connected to a connection box 21 , and a solid-liquid separation structure is provided inside the connection box 21 for performing solid-liquid separation on the salt precipitate generated by the reaction.

[0041] The solid-liquid separation structure includes a second sieve plate 16 symmetrically rotated inside the connection box 21. When the two second sieve plates 16 are in a horizontal state, the two second sieve plates 16 match the horizontal cross-section inside the connection box 21. The first sieve plate 13 is installed on the second sieve plate 16 near the inner wall of the connection box 21. A plurality of through-type second sieve holes 17 are provided on the second sieve plate 16. A plurality of first sieve holes 14 are evenly provided on the first sieve plate 13. A round rod 15 is horizontally installed at the connection between the first sieve plate 13 and the second sieve plate 16 on the same side, and one end of the round rod 15 extends to the outside of the connection box 21.

[0042] A transmission tooth 18 is installed at the end position of the round rod 15, an electric telescopic rod 24 is vertically installed on the outer wall of the connecting box 21, a moving frame 25 is installed at the bottom of the electric telescopic rod 24, and racks 26 are symmetrically arranged on both sides of the moving frame 25, and the racks 26 and the transmission tooth 18 are meshed with each other.

[0043] refer to Figure 7 The first sieve plate 13 and the second sieve plate 16 on the same side are arranged perpendicular to each other, and the size of the first sieve hole 14 is smaller than the size of the second sieve hole 17.

[0044] A through hole 12 is provided at the bottom of the spray tower 3 , and the interior of the connection box 21 is connected to the interior of the spray tower 3 through the through hole 12 . A bottom plate 20 is detachably mounted at the bottom of the connection box 21 .

[0045] By spraying the copper sulfate solution using the spray rack 5 and the spray head 4 on the upper part of the spray tower 3, a corresponding copper sulfide precipitate will be generated. The generated precipitate needs to be separated from the sulfuric acid solution. On the one hand, it is to prevent the two from mixing together and causing a reverse reaction. On the other hand, it is necessary to separate the solid and liquid and collect them separately, so that different methods of collection and treatment can be implemented for the solid and liquid.

[0046] Different treatment methods are adopted for product particles of different sizes. For this purpose, a first sieve plate 13 and a second sieve plate 16 are symmetrically arranged on the inner side of the connection box 21. The first sieve plate 13 and the second sieve plate 16 are vertically arranged. When the first sieve plate 13 is in a horizontal state, the other second sieve plate 16 is in contact with the inner wall of the connection box 21. At this time, the two first sieve plates 13 in a horizontal state separate the precipitate and the product solution, and the solution passes through the first sieve hole 14 and enters the bottom of the connection box 21. In this way, the liquid is discharged through the drain pipe 19.

[0047] Since the sizes of the first sieve holes 14 and the second sieve holes 17 are different, when it is necessary to adjust the size of the filtered sediment, different sieve hole sizes are selected. At this time, it is necessary to adjust the position between the first sieve plate 13 and the second sieve plate 16, and use the external electric telescopic rod 24 to drive the mobile frame 25 to move up and down. The racks 26 on both sides of the mobile frame 25 are meshed with the transmission teeth 18 to transfer kinetic energy to the round rod 15, and adjust the relative position between the second sieve plate 16 and the first sieve plate 13. In this way, smaller sediments can be separated into solids and liquids as needed. Example

[0048] In the traditional process of gas and liquid contacting each other, the contact area is often small, resulting in insufficient mixing of the two.

[0049] refer to Figure 1-3 The difference between this embodiment and embodiment 1 is that a support pipe 6 is vertically installed at the bottom of the spray tower 3, a gas concentration box 11 is installed at the bottom of the support pipe 6, and multiple groups of adjustment structures are arranged on the support pipe 6.

[0050] The regulating structure includes a filter plate 7 , holes 8 and a discharge hole 9 .

[0051] The filter plate 7 is detachably mounted on the outer side of the support tube 6, the hole 8 is provided on the filter plate 7, the discharge hole 9 is provided on the support tube 6 between two adjacent filter plates 7, the middle of the filter plate 7 is recessed downward, and a plurality of leakage holes 10 are provided in a circular array in the middle of the filter plate 7.

[0052] The air intake pipe assembly transmits the gas to the gas concentration box 11, and the gas concentration box 11 is connected to a support tube 6. A filter plate 7 is arranged on the outside of the support tube 6, and holes 8 are evenly opened on the filter plate 7. A discharge hole 9 is arranged on the support tube 6 to discharge the gas inside the support tube 6. The spray head 4 sprays the copper sulfate solution inside the liquid storage tank 1 into the interior of the spray tower 3 through the pump body. When the liquid contacts the filter plate 7, the holes 8 arranged on the filter plate 7 can increase the surface area when contacting with the hydrogen sulfide gas, and the copper sulfate solution in the holes 8 will also contact with the gas. At the same time, when the copper sulfate solution falls on the filter plate 7, the gathered bubbles will also increase the contact area with the hydrogen sulfide and fully contact with the gas, which can effectively promote the progress of the reaction.

[0053] At the same time, the middle of the filter plate 7 is sunken downwards, and a leakage hole 10 is provided at the sunken part, and the leakage hole 10 is used for discharging the reaction raw materials downwards. Example

[0054] When the spray tower 3 is working normally, it will generate huge noise. The analysis principle is that when the gas passes through the air inlet pipe, the sound waves generated by friction are transmitted in the pipe.

[0055] refer to Figure 8 The difference between this embodiment and Embodiment 1 and Embodiment 2 is that the air intake pipe assembly includes a first air intake pipe 22 and a second air intake pipe 23, the second air intake pipe 23 is respectively connected to the gas concentration box 11 and the first air intake pipe 22, the inner diameter of the first air intake pipe 22 is larger than the inner diameter of the second air intake pipe 23, and the inner surface of the first air intake pipe 22 is provided with a plurality of irregular protrusions 27.

[0056] To this end, the inner diameter of the first air intake pipe 22 is larger than the inner diameter of the second air intake pipe 23, and a plurality of irregular protrusions 27 are provided on the inner surface of the first air intake pipe 22. The sound wave is transmitted in the second air intake pipe 23, and then enters the inner side of the first air intake pipe 22. When encountering a sudden change in the cross-sectional area of ​​the pipe, the sound wave is reflected on the inner side of the second air intake pipe 23. Due to the sudden increase in the cross-sectional area, the speed of the sound wave is reduced. Part of the sound wave contacts and reflects with the protrusions 27 on the inner wall of the second air intake pipe 23, while the other part continues to propagate forward. This process causes the energy of the sound wave to be dispersed, thereby achieving the purpose of reducing noise.

[0057] The working principle of the device is:

[0058] Most of the oil return pipes on the market are made of rubber. A large amount of gas will be generated during the production and preparation process of rubber. The gas contains hydrogen sulfide gas, which is toxic and needs to be purified before discharge.

[0059] According to the chemical formula:

[0060] CuSO4+H2S=CuS↓+H2SO4

[0061] By spraying the copper sulfate solution using the spray rack 5 and the spray head 4 on the upper part of the spray tower 3, a corresponding copper sulfide precipitate will be generated. The generated precipitate needs to be separated from the sulfuric acid solution. On the one hand, it is to prevent the two from mixing together and causing a reverse reaction. On the other hand, it is necessary to separate the solid and liquid and collect them separately, so that different methods of collection and treatment can be implemented for the solid and liquid.

[0062] Different treatment methods are adopted for product particles of different sizes. For this purpose, a first sieve plate 13 and a second sieve plate 16 are symmetrically arranged on the inner side of the connection box 21. The first sieve plate 13 and the second sieve plate 16 are vertically arranged. When the first sieve plate 13 is in a horizontal state, the other second sieve plate 16 is in contact with the inner wall of the connection box 21. At this time, the two first sieve plates 13 in a horizontal state separate the precipitate and the product solution, and the solution passes through the first sieve hole 14 and enters the bottom of the connection box 21. In this way, the liquid is discharged through the drain pipe 19.

[0063] Since the sizes of the first sieve holes 14 and the second sieve holes 17 are different, when it is necessary to adjust the size of the filtered sediment and select different sieve hole sizes, it is necessary to adjust the position between the first sieve plate 13 and the second sieve plate 16, and use the external electric telescopic rod 24 to drive the mobile frame 25 to move up and down, and the racks 26 on both sides of the mobile frame 25 are engaged with the transmission teeth 18 to transfer kinetic energy to the round rod 15, and adjust the relative position between the second sieve plate 16 and the first sieve plate 13. In this way, according to needs, solid-liquid separation can be performed on sediments of smaller sizes without opening the connection box 21.

[0064] The separated sediment waste is discharged after the bottom plate 20 is disassembled.

[0065] In the traditional process of gas and liquid contacting each other, the contact area is often small, resulting in insufficient mixing of the two.

[0066] To this end, the air intake pipe assembly transmits the gas to the gas concentration box 11, and the gas concentration box 11 is connected to a support tube 6. A filter plate 7 is arranged on the outside of the support tube 6, and holes 8 are evenly opened on the filter plate 7. A discharge hole 9 is arranged on the support tube 6 to discharge the gas inside the support tube 6. The spray head 4 sprays the copper sulfate solution inside the liquid storage tank 1 into the interior of the spray tower 3 through the pump body. When the liquid contacts the filter plate 7, the holes 8 arranged on the filter plate 7 can increase the surface area when contacting with the hydrogen sulfide gas, and the copper sulfate solution in the holes 8 will also contact with the gas. At the same time, when the copper sulfate solution falls on the filter plate 7, the gathered bubbles will also increase the contact area with the hydrogen sulfide and fully contact with the gas, which can effectively promote the progress of the reaction.

[0067] At the same time, the middle of the filter plate 7 is sunken downwards, and a leakage hole 10 is provided at the sunken part, and the leakage hole 10 is used for discharging the reaction raw materials downwards.

[0068] When the spray tower 3 is working normally, it will generate huge noise. The analysis principle is that when the gas passes through the air inlet pipe, the sound waves generated by friction are transmitted in the pipe.

[0069] To this end, the inner diameter of the first air intake pipe 22 is larger than the inner diameter of the second air intake pipe 23, and a plurality of irregular protrusions 27 are provided on the inner surface of the first air intake pipe 22. The sound wave is transmitted in the second air intake pipe 23, and then enters the inner side of the first air intake pipe 22. When encountering a sudden change in the cross-sectional area of ​​the pipe, the sound wave is reflected on the inner side of the second air intake pipe 23. Due to the sudden increase in the cross-sectional area, the speed of the sound wave is reduced. Part of the sound wave contacts and reflects with the protrusions 27 on the inner wall of the second air intake pipe 23, while the other part continues to propagate forward. This process causes the energy of the sound wave to be dispersed, thereby achieving the purpose of reducing noise.

[0070] At the same time, the solution sprayed from the spray head 4 directly contacts the filter plate 7, so that the spraying interval of the solution can be shortened, the kinetic energy of the liquid can be reduced, the tendency of impact can be reduced, and the noise can be reduced to a certain extent.

[0071] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A gas processing device for the production of a piston internal combustion engine oil return pipe, comprising a spray tower (3) and a gas concentration box (11), characterized in that: A spray assembly is provided on the top of the spray tower (3), and the spray assembly sprays the copper sulfate solution into the inner side of the spray tower (3); The gas concentration box (11) is connected to an air intake pipe assembly, and the air intake pipe assembly extends to the interior of the spray tower (3); The bottom of the spray tower (3) is externally connected to a connection box (21), and a solid-liquid separation structure is arranged inside the connection box (21) for performing solid-liquid separation on the salt precipitate generated by the reaction; The solid-liquid separation structure comprises a second sieve plate (16) symmetrically arranged in rotation inside the connection box (21); when the two second sieve plates (16) are in a horizontal state, the two second sieve plates (16) match the horizontal cross-section inside the connection box (21); a first sieve plate (13) is installed near the inner wall of the connection box (21) on the second sieve plate (16); a plurality of through-type second sieve holes (17) are formed on the second sieve plate (16); and a plurality of first sieve holes (14) are uniformly formed on the first sieve plate (13); The first sieve plate (13) and the second sieve plate (16) on the same side are arranged perpendicular to each other, a round rod (15) is horizontally installed at the connection between the first sieve plate (13) and the second sieve plate (16) on the same side, and one end of the round rod (15) extends to the outside of the connection box (21), the size of the first sieve hole (14) is smaller than the size of the second sieve hole (17), a transmission tooth (18) is installed at the end position of the round rod (15), an electric telescopic rod (24) is vertically installed on the outer wall of the connection box (21), a moving frame (25) is installed at the bottom of the electric telescopic rod (24), racks (26) are symmetrically arranged on both sides of the moving frame (25), and the racks (26) and the transmission teeth (18) are meshed with each other; A support pipe (6) is vertically installed at the bottom of the spray tower (3), a gas concentration box (11) is installed at the bottom of the support pipe (6), and a plurality of adjustment structures are arranged on the support pipe (6); The regulating structure comprises a filter plate (7), holes (8) and a discharge hole (9); The filter plate (7) is detachably mounted on the outside of the support tube (6), the hole (8) is provided on the filter plate (7), and the discharge hole (9) is provided on the support tube (6) between two adjacent filter plates (7).

2. The gas processing device for producing the oil return pipe of a piston type internal combustion engine according to claim 1, characterized in that: The spray assembly comprises a liquid storage tank (1), a cover plate (2), a spray head (4) and a spray rack (5); The cover plate (2) is detachably mounted on the spray tower (3); the liquid storage tank (1) is mounted on the top of the cover plate (2); the spray frame (5) penetrates the cover plate (2) and is connected to the inside of the liquid storage tank (1); the spray head (4) is fixedly mounted on the bottom of the spray frame (5); and the spray head (4) sprays the copper sulfate solution in the liquid storage tank (1).

3. The gas processing device for producing the oil return pipe of a piston type internal combustion engine according to claim 2, characterized in that: The air intake pipe assembly comprises a first air intake pipe (22) and a second air intake pipe (23); the second air intake pipe (23) is respectively connected to the gas concentration box (11) and the first air intake pipe (22); the inner diameter of the first air intake pipe (22) is greater than the inner diameter of the second air intake pipe (23).

4. The gas processing device for producing the oil return pipe of a piston type internal combustion engine according to claim 3, characterized in that: The inner surface of the first air inlet pipe (22) is provided with a plurality of irregular protrusions (27).

5. The gas processing device for producing the oil return pipe of a piston type internal combustion engine according to claim 4, characterized in that: A through hole (12) is provided at the bottom of the spray tower (3); the interior of the connection box (21) is connected to the interior of the spray tower (3) via the through hole (12); and a bottom plate (20) is detachably mounted at the bottom of the connection box (21).

6. The gas processing device for producing the oil return pipe of a piston type internal combustion engine according to claim 5, characterized in that: The middle portion of the filter plate (7) is recessed downwards, and a plurality of material leakage holes (10) are provided in a circular array at the middle portion of the filter plate (7).

Images