CN219412755U - Gas leakage backflow filtering system of gas engine - Google Patents
Gas leakage backflow filtering system of gas engine Download PDFInfo
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- CN219412755U CN219412755U CN202320445918.1U CN202320445918U CN219412755U CN 219412755 U CN219412755 U CN 219412755U CN 202320445918 U CN202320445918 U CN 202320445918U CN 219412755 U CN219412755 U CN 219412755U
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- gas
- air
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- spring
- gas engine
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Abstract
A gas engine leakage backflow filtering system comprises a gas engine, a leakage backflow filter, an air filter, a gas mixer, a supercharger, a mixing cooler and a speed regulating valve; the gas engine is provided with a power system and a lubrication system, the power system is provided with an air inlet, and the lubrication system is provided with a breathing port and a lubricating oil inlet; the air filter, the gas mixer, the supercharger, the mixing cooler and the speed regulating valve are connected in sequence; the output end of the speed regulating valve is connected with an air inlet of the power system; the air leakage backflow filter is provided with a filtering air inlet, a filtering air outlet and an oil discharge port; the breathing port of the lubricating system is connected with the filtering air inlet of the leakage backflow filter, the lubricating oil inlet is connected with the oil drain port of the leakage backflow filter, and the filtering air outlet of the leakage backflow filter is connected with the input end of the supercharger. Therefore, the breathing gas can be recycled, and the consumption of lubricating oil is reduced.
Description
Technical Field
The utility model relates to the technical field of gas engines, in particular to a gas leakage backflow filtering system of a gas engine.
Background
The crankcase of the gas engine generates a breathing gas, which is mixed with lubricating oil particles and is discharged through a breathing port. The breathing gas of the existing gas engine is directly discharged to the external space, so that air pollution is caused, and the waste of lubricating oil is large due to the direct discharge of the breathing gas, so that the consumption of the lubricating oil is large.
Disclosure of Invention
In view of the above, the present utility model provides a gas leakage and backflow filtering system of a gas engine, which can recycle the breathing gas and reduce the consumption of lubricating oil, so as to solve the above problems.
A gas engine leakage backflow filtering system comprises a gas engine, a leakage backflow filter, an air filter, a gas mixer, a supercharger, a mixing cooler and a speed regulating valve; the gas engine is provided with a power system and a lubrication system, the power system is provided with an air inlet, and the lubrication system is provided with a breathing port and a lubricating oil inlet; the air filter, the gas mixer, the supercharger, the mixing cooler and the speed regulating valve are connected in sequence; the output end of the speed regulating valve is connected with an air inlet of the power system; the air leakage backflow filter is provided with a filtering air inlet, a filtering air outlet and an oil discharge port; the breathing port of the lubricating system is connected with the filtering air inlet of the leakage backflow filter, the lubricating oil inlet is connected with the oil drain port of the leakage backflow filter, and the filtering air outlet of the leakage backflow filter is connected with the input end of the supercharger.
Further, the gas mixer is provided with an air inlet, a gas inlet and a mixed gas outlet; an air inlet is connected with the air filter for receiving air; the fuel gas inlet is used for receiving fuel gas; the gas mixer is used for mixing gas and air to form mixed gas; the mixer outlet is used for outputting the mixed gas.
Further, an air pressure regulator is arranged in the air leakage backflow filter and comprises a shell, a spring seat positioned in the shell, a spring with one end positioned in the spring seat, a contact cap abutted with the other end of the spring and a side cover connected with the shell; a first opening is formed in one end of the shell, a second opening is formed in the middle of the side cover, and the contact cap is movably located in the second opening.
Further, the shell comprises a main shell, an annular inner ring fixedly arranged in the main shell, an air outlet pipe vertically connected with the outer side wall of the main shell and a connecting ring protruding outwards from one end of the main shell with a first opening; an adjusting cavity communicated with the first opening is formed in the main shell; one end of the main shell, which is far away from the connecting ring, is fixedly connected with the inner ring; an air outlet communicated with the adjusting cavity is formed in the outer side wall of the main shell, and the air outlet pipe is communicated with the air outlet.
Further, the inner ring divides the adjusting cavity into an inner cavity positioned in the inner ring and an outer cavity positioned outside the inner ring, a plurality of strip-shaped openings are axially arranged at intervals on one side of the circumferential side wall of the inner ring, which is close to the first opening, and the strip-shaped openings are communicated with the inner cavity and the outer cavity; the spring seat is located in the inner ring, a spring mounting groove is formed in the end, facing the first opening, of the spring seat in an inwards recessed mode, and one end of the spring is located in the spring mounting groove.
Further, the axial length of the spring seat is smaller than the axial length of the inner ring.
Further, the contact cap comprises a round contact plate and a positioning column vertically connected with the middle part of one side of the contact plate, the positioning column is positioned in the spring, and the other end of the spring is abutted with one side of the contact plate, on which the positioning column is arranged.
Further, the edge of one end of the contact plate, which faces the spring seat, is outwards provided with an abutting ring in a protruding mode, and the abutting ring is movably abutted with the side cover.
Compared with the prior art, the gas engine leakage backflow filtering system comprises a gas engine, a leakage backflow filter, an air filter, a gas mixer, a supercharger, a mixing cooler and a speed regulating valve; the gas engine is provided with a power system and a lubrication system, the power system is provided with an air inlet, and the lubrication system is provided with a breathing port and a lubricating oil inlet; the air filter, the gas mixer, the supercharger, the mixing cooler and the speed regulating valve are connected in sequence; the output end of the speed regulating valve is connected with an air inlet of the power system; the air leakage backflow filter is provided with a filtering air inlet, a filtering air outlet and an oil discharge port; the breathing port of the lubricating system is connected with the filtering air inlet of the leakage backflow filter, the lubricating oil inlet is connected with the oil drain port of the leakage backflow filter, and the filtering air outlet of the leakage backflow filter is connected with the input end of the supercharger. Therefore, the breathing gas can be recycled, and the consumption of lubricating oil is reduced.
Drawings
Embodiments of the utility model are described below with reference to the accompanying drawings, in which:
FIG. 1 is a block schematic diagram of a gas engine blow-by gas recirculation filter system provided by the present utility model.
Fig. 2 is a schematic perspective view of the air pressure regulator of fig. 1.
Fig. 3 is a side cross-sectional view of the air pressure regulator of fig. 1.
Detailed Description
Specific embodiments of the present utility model will be described in further detail below based on the drawings. It should be understood that the description herein of the embodiments of the utility model is not intended to limit the scope of the utility model.
Referring to fig. 1, the gas engine leakage recirculation filtering system provided by the present utility model includes a gas engine 100, a leakage recirculation filter 200, an air filter 300, a gas mixer 400, a supercharger 500, a hybrid cooler 600 and a speed valve 700.
The gas engine 100 has a power system 110 and a lubrication system 120, the power system 110 having an intake port, and the lubrication system 120 having a breathing port and a lubrication oil inlet.
The air filter 300, the gas mixer 400, the supercharger 500, the hybrid cooler 600, and the speed valve 700 are connected in this order.
The gas mixer 400 has an air inlet, a gas inlet, and a mixture outlet; an air inlet is connected to the air filter 300 for receiving air; the gas inlet is for receiving a gas, such as natural gas; the gas mixer 400 is used for mixing gas and air according to a certain ratio to form a mixed gas. The mixer outlet is used for outputting the mixed gas.
The air filter 300 is used to filter air.
The supercharger 500 is used to generate negative pressure to cause the mixed gas to flow to the gas engine 100.
The hybrid cooler 600 is used for cooling the mixture, and the speed valve 700 is used for adjusting the flow rate of the mixture.
The output of the speed valve 700 is connected to the air inlet of the power system 110.
The blow-by gas recirculation filter 200 has a filter air inlet, a filter air outlet, and an oil drain.
The breathing port of the lubrication system 120 is connected with the filtering air inlet of the blow-by gas backflow filter 200, the lubricating oil inlet is connected with the oil outlet of the blow-by gas backflow filter 200, and the filtering air outlet of the blow-by gas backflow filter 200 is connected with the input end of the supercharger 500, so that the power for extracting the breathing gas can be improved, and the filtering efficiency can be improved.
The blow-by gas recirculation filter 200 is used for filtering the breathing gas discharged from the breathing port, and the filtered gas is recirculated to the supercharger 500, and the precipitated oil particles are collected and recirculated to the lubrication system 120.
Because the negative pressure generated by the supercharger 500 is large, the connection to the lubrication system 120 through the blow-by gas recirculation filter 200 may result in negative pressure being generated within the lubrication system 120, which is undesirable.
A pneumatic regulator 210 is provided in the blow-by gas recirculation filter 200 to ensure that no negative pressure is created within the lubrication system 120.
Referring to fig. 2 and 3, the air pressure regulator 210 includes a housing 10, a spring seat 20 disposed in the housing 10, a spring 30 having one end disposed in the spring seat 20, a contact cap 40 abutting against the other end of the spring 30, and a side cover 50 connected to the housing 10.
The housing 10 includes a cylindrical main housing 11, an annular inner ring 12 fixedly provided in the main housing 11, an air outlet pipe 13 perpendicularly connected to an outer side wall of the main housing 11, and a connection ring 14 protruding and extending outward from one end of the main housing 11.
An adjusting cavity is formed in the main shell 11, a first opening communicated with the adjusting cavity is formed in the middle of one end, provided with the connecting ring 14, of the main shell 11, and one end, away from the connecting ring 14, of the main shell 11 is fixedly connected with the inner ring 12.
An air outlet communicated with the adjusting cavity is formed in the outer side wall of the main shell 11, and an air outlet pipe 13 is communicated with the air outlet.
The inner ring 12 divides the adjustment chamber into an inner chamber located in the inner ring 12 and an outer chamber located outside the inner ring 12.
One side of the circumferential side wall of the inner ring 12, which is close to the first opening, is provided with a plurality of strip-shaped openings 121 at intervals along the axial direction, and the strip-shaped openings 121 are communicated with the inner cavity and the outer cavity.
The spring seat 20 is cylindrical in shape, the axial length of the spring seat 20 is smaller than that of the inner ring 12, the spring seat 20 is located in the inner ring 12, a spring mounting groove 21 is formed in an inward concave manner at one end of the spring seat 20 facing the first opening, and one end of the spring 30 is located in the spring mounting groove 21.
The contact cap 40 includes a circular contact plate 41 and a positioning column 42 vertically connected to a middle portion of one side of the contact plate 41, the positioning column 42 is located in the spring 30, and the other end of the spring 30 abuts against the side of the contact plate 41 where the positioning column 42 is provided.
The connecting ring 14 is provided with a plurality of first mounting holes 141 at intervals, the middle part of the side cover 50 is provided with a second opening, the diameter of the second opening is smaller than that of the first opening and slightly larger than that of the contact plate 41, and the contact cap 40 is movably positioned in the second opening.
The circumferential edge of the side cover 50 is provided with a second mounting hole corresponding to the first mounting hole 141, and a connection member 60 passes through the first mounting hole 141 and the second mounting hole, thereby connecting the side cover 50 and the case 10. The connection 60 may be a stud and a nut.
Gas enters from the second opening, pushes the contact cap 40 toward the spring seat 20 under the action of gas pressure, compresses the spring 30, and then flows through the plurality of strip-shaped openings 121 and out through the gas outlet tube 13.
Thus, the air pressure is automatically regulated by the elasticity of the spring 30, and different parts in the gas engine or different gas engines can realize different pressure regulation by replacing the spring 30 with different elastic coefficients.
The edge of the contact plate 41 facing one end of the spring seat 20 is provided with an abutment ring protruding outwards, and the abutment ring is movably abutted against the side cover 50, so that the contact cap 40 is prevented from being separated from the second opening under the elastic action of the spring 30.
The spring seat 20 is provided with a positioning block 22 protruding from the middle of the bottom wall of the spring mounting groove 21, and the positioning block 22 is located in the spring 30.
Compared with the prior art, the gas engine leakage backflow filtering system comprises a gas engine 100, a leakage backflow filter 200, an air filter 300, a gas mixer 400, a supercharger 500, a hybrid cooler 600 and a speed regulating valve 700; the gas engine 100 has a power system 110 and a lubrication system 120, the power system 110 having an intake port, the lubrication system 120 having a breathing port and a lubrication oil inlet; the air filter 300, the gas mixer 400, the supercharger 500, the hybrid cooler 600 and the speed regulating valve 700 are connected in sequence; the output end of the speed control valve 700 is connected with the air inlet of the power system 110; the leakage air backflow filter 200 is provided with a filtering air inlet, a filtering air outlet and an oil drain port; the breathing port of the lubrication system 120 is connected with the filtering air inlet of the blow-by gas recirculation filter 200, the lubricating oil inlet is connected with the oil drain port of the blow-by gas recirculation filter 200, and the filtering air outlet of the blow-by gas recirculation filter 200 is connected with the input end of the supercharger 500. Therefore, the breathing gas can be recycled, and the consumption of lubricating oil is reduced.
The above is only a preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model, and any modifications, equivalent substitutions or improvements within the spirit of the present utility model are intended to be covered by the claims of the present utility model.
Claims (8)
1. A gas engine blow-by gas reflux filtration system, characterized by: the device comprises a gas engine, a leakage backflow filter, an air filter, a gas mixer, a supercharger, a mixing cooler and a speed regulating valve; the gas engine is provided with a power system and a lubrication system, the power system is provided with an air inlet, and the lubrication system is provided with a breathing port and a lubricating oil inlet; the air filter, the gas mixer, the supercharger, the mixing cooler and the speed regulating valve are connected in sequence; the output end of the speed regulating valve is connected with an air inlet of the power system; the air leakage backflow filter is provided with a filtering air inlet, a filtering air outlet and an oil discharge port; the breathing port of the lubricating system is connected with the filtering air inlet of the leakage backflow filter, the lubricating oil inlet is connected with the oil drain port of the leakage backflow filter, and the filtering air outlet of the leakage backflow filter is connected with the input end of the supercharger.
2. The gas engine blow-by gas recirculation filter system of claim 1, wherein: the gas mixer is provided with an air inlet, a gas inlet and a mixed gas outlet; an air inlet is connected with the air filter for receiving air; the fuel gas inlet is used for receiving fuel gas; the gas mixer is used for mixing gas and air to form mixed gas; the mixer outlet is used for outputting the mixed gas.
3. The gas engine blow-by gas recirculation filter system of claim 1, wherein: the air leakage backflow filter is internally provided with an air pressure regulator, and the air pressure regulator comprises a shell, a spring seat positioned in the shell, a spring with one end positioned in the spring seat, a contact cap abutted with the other end of the spring and a side cover connected with the shell; a first opening is formed in one end of the shell, a second opening is formed in the middle of the side cover, and the contact cap is movably located in the second opening.
4. A gas engine blow-by gas recirculation filter system according to claim 3, wherein: the shell comprises a main shell, an annular inner ring fixedly arranged in the main shell, an air outlet pipe vertically connected with the outer side wall of the main shell and a connecting ring protruding outwards from one end of the main shell with a first opening; an adjusting cavity communicated with the first opening is formed in the main shell; one end of the main shell, which is far away from the connecting ring, is fixedly connected with the inner ring; an air outlet communicated with the adjusting cavity is formed in the outer side wall of the main shell, and the air outlet pipe is communicated with the air outlet.
5. The gas engine blow-by gas recirculation filter system of claim 4, wherein: the inner ring divides the adjusting cavity into an inner cavity positioned in the inner ring and an outer cavity positioned outside the inner ring, a plurality of strip-shaped openings are axially arranged on one side of the circumferential side wall of the inner ring, which is close to the first opening, at intervals, and the strip-shaped openings are communicated with the inner cavity and the outer cavity; the spring seat is located in the inner ring, a spring mounting groove is formed in the end, facing the first opening, of the spring seat in an inwards recessed mode, and one end of the spring is located in the spring mounting groove.
6. The gas engine blow-by gas recirculation filter system of claim 5, wherein: the axial length of the spring seat is smaller than that of the inner ring.
7. The gas engine blow-by gas recirculation filter system of claim 5, wherein: the contact cap comprises a round contact plate and a positioning column vertically connected with the middle of one side of the contact plate, the positioning column is positioned in the spring, and the other end of the spring is abutted with one side of the contact plate, on which the positioning column is arranged.
8. The gas engine blow-by gas recirculation filter system of claim 7, wherein: the edge of one end of the contact plate, which faces the spring seat, is outwards provided with an abutting ring in a protruding mode, and the abutting ring is movably abutted with the side cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320445918.1U CN219412755U (en) | 2023-03-06 | 2023-03-06 | Gas leakage backflow filtering system of gas engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320445918.1U CN219412755U (en) | 2023-03-06 | 2023-03-06 | Gas leakage backflow filtering system of gas engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219412755U true CN219412755U (en) | 2023-07-25 |
Family
ID=87228646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320445918.1U Active CN219412755U (en) | 2023-03-06 | 2023-03-06 | Gas leakage backflow filtering system of gas engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219412755U (en) |
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2023
- 2023-03-06 CN CN202320445918.1U patent/CN219412755U/en active Active
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