CN113482803A - Double-bottle gas supply system with pump and with pressurization function for gas engine - Google Patents
Double-bottle gas supply system with pump and with pressurization function for gas engine Download PDFInfo
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- CN113482803A CN113482803A CN202110765703.3A CN202110765703A CN113482803A CN 113482803 A CN113482803 A CN 113482803A CN 202110765703 A CN202110765703 A CN 202110765703A CN 113482803 A CN113482803 A CN 113482803A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0221—Fuel storage reservoirs, e.g. cryogenic tanks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0221—Fuel storage reservoirs, e.g. cryogenic tanks
- F02M21/0224—Secondary gaseous fuel storages
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/023—Valves; Pressure or flow regulators in the fuel supply or return system
- F02M21/0239—Pressure or flow regulators therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0245—High pressure fuel supply systems; Rails; Pumps; Arrangement of valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0287—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers characterised by the transition from liquid to gaseous phase ; Injection in liquid phase; Cooling and low temperature storage
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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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a double-bottle air supply system with a pump and a supercharging function for a gas engine, which comprises: take the pump gas cylinder, the pump liquid outlet of taking the pump gas cylinder links to each other with the one end of gas supply pipe, and it has high-pressure vaporizer and high-pressure buffer tank to establish ties on the gas supply pipe, and the inlet of taking the pump gas cylinder links to each other with the one end of first feed liquor pipe, and the gaseous phase mouth of taking the pump gas cylinder links to each other with the one end of first gaseous phase pipe, still includes: the liquid inlet of the liquid supplementing gas cylinder is connected with one end of the second liquid inlet pipe, the gas phase port of the liquid supplementing gas cylinder is connected with one end of the second gas phase pipe, the liquid outlet of the liquid supplementing gas cylinder is connected with one end of the liquid supplementing pipe, and the other end of the liquid supplementing pipe is connected with the liquid inlet of the gas cylinder with the pump. The double-cylinder system with the pump can supplement liquid for the gas cylinder with the pump through the liquid supplementing gas cylinder, so that the endurance mileage can be greatly increased; the liquid supplementing gas cylinder is a conventional vehicle gas cylinder without a pump, so the cost increase of the gas supply system is little.
Description
Technical Field
The invention relates to a gas supply system of a gas engine, in particular to a double-bottle gas supply system with a pump for the gas engine.
Background
The existing structure of the air supply system with pump for the HPDI gas engine comprises: the gas cylinder with the pump is characterized in that a liquid outlet of the gas cylinder with the pump is connected with one end of a gas supply pipe, the other end of the gas supply pipe is connected with an engine to supply gas for the engine, a high-pressure vaporizer and a high-pressure buffer tank are connected in series on the gas supply pipe, the high-pressure vaporizer is located between the high-pressure buffer tank and the gas cylinder with the pump, a liquid inlet of the gas cylinder with the pump is connected with one end of a liquid inlet pipe, and a gas phase port of the gas cylinder with the pump is connected with one end of a gas phase pipe. The gas cylinder with the pump is an existing gas cylinder with a high-pressure pump arranged inside, the liquid inlet pipe is used for injecting LNG into the gas cylinder with the pump, the gas phase pipe is used for returning gas, the pump can pump the LNG into the high-pressure vaporizer for vaporization, and then vaporized natural gas can enter the high-pressure buffer tank for buffering and then enters a gas engine. The existing air supply system with the pump is a single-bottle system, and along with the fire explosion of domestic long-distance transportation, cold chain transportation and express transportation markets, the endurance mileage of the single-bottle system cannot meet the use requirement.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the pump-equipped double-bottle air supply system with the pressurization function for the gas engine is low in cost increase and high in endurance mileage.
In order to solve the problems, the technical scheme adopted by the invention is as follows: first, a pumped two-cylinder air supply system with a supercharging function for a gas engine, comprising: take the pump gas cylinder, the pump of taking the pump gas cylinder goes out the liquid mouth and links to each other with the one end of gas supply pipe, and the other end of gas supply pipe is used for linking to each other with the engine and provides the gas for the engine, and it has high-pressure vaporizer and high-pressure buffer tank to establish ties on the gas supply pipe, and high-pressure vaporizer is located high-pressure buffer tank and takes between the pump gas cylinder, and the inlet of taking the pump gas cylinder links to each other with the one end of first feed liquor pipe, and the gaseous phase mouth of taking the pump gas cylinder links to each other its characterized in that with the one end of first gaseous phase pipe: further comprising: the liquid inlet of the liquid supplementing gas bottle is connected with one end of a second liquid inlet pipe, the gas phase port of the liquid supplementing gas bottle is connected with one end of a second gas phase pipe, the liquid outlet of the liquid supplementing gas bottle is connected with one end of a liquid supplementing pipe, and the other end of the liquid supplementing pipe is connected with the liquid inlet of the gas bottle with the pump; one end of the pressure increasing pipe is connected with a fuel gas supply pipe behind the high-pressure buffer tank, the other end of the pressure increasing pipe is connected with the second gas phase pipe, a primary pressure reducing valve, a secondary pressure reducing valve and an electromagnetic valve are sequentially connected in series on the pressure increasing pipe, high-pressure vaporized natural gas in the high-pressure buffer tank can be reduced in pressure through the primary pressure reducing valve and the secondary pressure reducing valve sequentially after entering the pressure increasing pipe, and then the liquid supplementing gas cylinder is pressurized in a gas phase entering the liquid supplementing gas cylinder.
Further, the foregoing pump-equipped two-cylinder air supply system with supercharging function for a gas engine, wherein: the liquid supplementing pipe, the first liquid inlet pipe, the second liquid inlet pipe and the fuel gas supply pipe are all connected in series with a one-way valve for preventing backflow, and the second liquid inlet pipe, the first gas phase pipe, the second gas phase pipe, the liquid supplementing pipe and the pressure increasing pipe are all connected in series with a manual stop valve.
Further, the foregoing pump-equipped two-cylinder air supply system with supercharging function for a gas engine, wherein: the first liquid inlet pipe and the second liquid inlet pipe are both connected with a liquid inlet header pipe, and the first gas phase pipe and the second gas phase pipe are both connected with a gas phase header pipe.
Further, the foregoing pump-equipped two-cylinder air supply system with supercharging function for a gas engine, wherein: the gas cylinder with the pump is also connected with a liquid discharge pipe for emptying the gas cylinder with the pump.
Further, the foregoing pump-equipped two-cylinder air supply system with supercharging function for a gas engine, wherein: the gas supply pipe and the second gas phase pipe are respectively connected with one end of one emptying pipe, and safety valves are connected on the emptying pipes in series.
Second, a two-cylinder air supply system with pump for a gas engine with a supercharging function, comprising: take the pump gas cylinder, the pump of taking the pump gas cylinder goes out the liquid mouth and links to each other with the one end of gas supply pipe, and the other end of gas supply pipe is used for linking to each other with the engine and provides the gas for the engine, and it has high-pressure vaporizer and high-pressure buffer tank to establish ties on the gas supply pipe, and high-pressure vaporizer is located high-pressure buffer tank and takes between the pump gas cylinder, and the inlet of taking the pump gas cylinder links to each other with the one end of first feed liquor pipe, and the gaseous phase mouth of taking the pump gas cylinder links to each other its characterized in that with the one end of first gaseous phase pipe: further comprising: the liquid inlet of the liquid supplementing gas bottle is connected with one end of a second liquid inlet pipe, the gas phase port of the liquid supplementing gas bottle is connected with one end of a second gas phase pipe, the liquid outlet of the liquid supplementing gas bottle is connected with one end of a liquid supplementing pipe, and the other end of the liquid supplementing pipe is connected with the liquid inlet of the gas bottle with the pump; one end of the pressure increasing pipe is connected with the engine, so that high-pressure return air in an engine injection system can enter the pressure increasing pipe, the other end of the pressure increasing pipe is connected with the second gas phase pipe, a primary pressure reducing valve, a secondary pressure reducing valve, a low-pressure air filter and an electromagnetic valve are sequentially connected in series on the pressure increasing pipe, the high-pressure return air in the engine enters the pressure increasing pipe, then is sequentially decompressed through the primary pressure reducing valve and the secondary pressure reducing valve, and then enters the gas phase of the liquid supplementing gas cylinder after being filtered by the low-pressure filter to pressurize the liquid supplementing gas cylinder.
Further, the foregoing pump-equipped two-cylinder air supply system with supercharging function for a gas engine, wherein: the liquid supplementing pipe, the first liquid inlet pipe, the second liquid inlet pipe and the fuel gas supply pipe are all connected in series with a one-way valve for preventing backflow, and the second liquid inlet pipe, the first gas phase pipe, the second gas phase pipe and the liquid supplementing pipe are all connected in series with a manual stop valve.
Further, the foregoing pump-equipped two-cylinder air supply system with supercharging function for a gas engine, wherein: the first liquid inlet pipe and the second liquid inlet pipe are both connected with a liquid inlet header pipe, and the first gas phase pipe and the second gas phase pipe are both connected with a gas phase header pipe.
Further, the foregoing pump-equipped two-cylinder air supply system with supercharging function for a gas engine, wherein: the gas cylinder with the pump is also connected with a liquid discharge pipe for emptying the gas cylinder with the pump.
Further, the foregoing pump-equipped two-cylinder air supply system with supercharging function for a gas engine, wherein: the gas supply pipe and the second gas phase pipe are respectively connected with one end of one emptying pipe, and safety valves are connected on the emptying pipes in series.
The invention has the advantages that: the pump-equipped double-cylinder system with the pressurization function can supplement liquid for the pump-equipped gas cylinder through the liquid supplementing gas cylinder, so that the endurance mileage can be greatly increased; the liquid supplementing gas cylinder is a conventional vehicle gas cylinder without a pump, so the cost increase of the gas supply system is little.
Drawings
Fig. 1 is a schematic view showing a structure of a pumped two-cylinder air supply system with a supercharging function for a gas engine according to the present invention.
Fig. 2 is a schematic view showing another structure of the pump-equipped two-cylinder air supply system with a supercharging function for a gas engine according to the present invention.
Detailed Description
The present invention will be described in further detail below with reference to specific embodiments and the attached drawings.
Example 1
As shown in fig. 1, a pumped two-cylinder air supply system with a supercharging function for a gas engine includes: take pump gas cylinder 1, the pump outlet 13 of taking pump gas cylinder 1 links to each other with the one end of gas supply pipe 2, the other end of gas supply pipe 2 is used for linking to each other with engine 3 and provides the gas for the engine, it has high-pressure vaporizer 21 and high-pressure buffer tank 22 to establish ties on gas supply pipe 2, high-pressure vaporizer 21 is located between high-pressure buffer tank 22 and the pump gas cylinder 1 of taking, the first inlet 14 of taking pump gas cylinder 1 links to each other with the one end of first feed liquor pipe 41, the first gaseous phase mouth 15 of taking pump gas cylinder 1 links to each other with the one end of first gaseous phase pipe 51, still include: the LNG vehicle gas cylinder comprises a liquid supplementing gas cylinder 6 and a pressure increasing pipe 8, wherein the pressure increasing pipe 8 is arranged because the pressure in the liquid supplementing gas cylinder 6 needs to be higher than the pressure in the gas cylinder 1 with a pump in the process of supplementing LNG to the gas cylinder 1 with a pump by the liquid supplementing gas cylinder 6, and the liquid supplementing gas cylinder 6 is a conventional LNG vehicle gas cylinder without a pump; a second liquid inlet 64 of the liquid supplementing gas bottle 6 is connected with one end of a second liquid inlet pipe 42, a second gas phase port 65 of the liquid supplementing gas bottle 6 is connected with one end of a second gas phase pipe 52, a liquid outlet 66 of the liquid supplementing gas bottle 6 is connected with one end of a liquid supplementing pipe 7, and the other end of the liquid supplementing pipe 7 is connected with a first liquid inlet 14 of the gas bottle 1 with a pump; one end of the pressure increasing pipe 8 is connected to the gas supply pipe 2 behind the high-pressure buffer tank 22, the other end of the pressure increasing pipe 8 is connected to the second gas phase pipe 52, the pressure increasing pipe 8 is sequentially connected in series with a primary pressure reducing valve 81, a secondary pressure reducing valve 82 and an electromagnetic valve 83, the electromagnetic valve 83 is opened, the high-pressure vaporized natural gas in the high-pressure buffer tank 22 enters the pressure increasing pipe 8 and then is subjected to pressure reduction through the primary pressure reducing valve 81 and the secondary pressure reducing valve 82 in sequence, and then the gas phase entering the liquid supplementing gas cylinder 6 is pressurized for the liquid supplementing gas cylinder 6.
The pump in the gas cylinder 1 with pump can pump the LNG in the gas cylinder 1 with pump into the high-pressure vaporizer 21 for vaporization, and then the vaporized natural gas enters the high-pressure buffer tank 22 for buffering and then enters the gas engine 3 for combustion. The liquid supplementing gas cylinder 6 can supplement liquid for the gas cylinder 1 with the pump through the liquid supplementing pipe 7, and therefore the endurance mileage is increased.
In the present embodiment, a check valve 11 for preventing backflow is connected in series to each of the fluid replacement pipe 7, the first fluid inlet pipe 41, the second fluid inlet pipe 42, and the gas supply pipe 2, and a manual shutoff valve 12 is connected in series to each of the second fluid inlet pipe 42, the first gas phase pipe 51, the second gas phase pipe 52, the fluid replacement pipe 7, and the pressure increasing pipe 8. After the manual stop valves 12 on the second liquid inlet pipe 42, the second gas phase pipe 52 and the liquid supplementing pipe 7 are closed, the gas cylinder 1 with the pump can be ensured to be independently used.
The first liquid inlet pipe 41 and the second liquid inlet pipe 42 are connected to a liquid inlet header pipe 43, and the first vapor phase pipe 51 and the second vapor phase pipe 52 are connected to a vapor phase header pipe 53.
The gas cylinder 1 with the pump is also connected with a liquid discharge pipe 61 for emptying the gas cylinder 1 with the pump, and the liquid discharge pipe 61 is connected with a manual stop valve 12 in series.
The gas supply pipe 2 and the second gas phase pipe 52 are respectively connected with one end of a vent pipe 62, and a safety valve 63 is connected in series on each vent pipe 62.
Example 2
As shown in fig. 2, a pumped two-cylinder air supply system with a supercharging function for a gas engine includes: take pump gas cylinder 1, the pump outlet 13 of taking pump gas cylinder 1 links to each other with the one end of gas supply pipe 2, the other end of gas supply pipe 2 is used for linking to each other with engine 3 and provides the gas for engine 3, it has high-pressure vaporizer 21 and high-pressure buffer tank 22 to establish ties on gas supply pipe 2, high-pressure vaporizer 21 is located between high-pressure buffer tank 22 and the pump gas cylinder 1 of taking, the first inlet 14 of taking pump gas cylinder 1 links to each other with the one end of first feed liquor pipe 41, the first gaseous phase mouth 15 of taking pump gas cylinder 1 links to each other with the one end of first gaseous phase pipe 51, still include: the LNG replenishing device comprises a liquid replenishing gas cylinder 6 and a pressure increasing pipe 8, wherein the pressure increasing pipe 8 is arranged, and the liquid replenishing gas cylinder 6 is a conventional LNG vehicle gas cylinder, because the pressure in the liquid replenishing gas cylinder 6 is required to be higher than the pressure in the gas cylinder 1 with a pump in the process of replenishing LNG to the gas cylinder 1 with the pump by the liquid replenishing gas cylinder 6; a second liquid inlet 64 of the liquid supplementing gas bottle 6 is connected with one end of a second liquid inlet pipe 42, a second gas phase port 65 of the liquid supplementing gas bottle 6 is connected with one end of a second gas phase pipe 52, a liquid outlet 66 of the liquid supplementing gas bottle 6 is connected with one end of a liquid supplementing pipe 7, and the other end of the liquid supplementing pipe 7 is connected with a first liquid inlet 14 of the gas bottle 1 with a pump; one end of the pressure increasing pipe 8 is connected to the engine 3, so that high-pressure return air in an injection system of the engine 3 can enter the pressure increasing pipe 8, the other end of the pressure increasing pipe 8 is connected with the second gas phase pipe 52, a primary pressure reducing valve 81, a secondary pressure reducing valve 82, a low-pressure air filter 83 and an electromagnetic valve 84 are sequentially connected to the pressure increasing pipe 8 in series, the electromagnetic valve 84 is opened, the high-pressure return air in the engine 3 enters the pressure increasing pipe 8 and then is subjected to pressure reduction through the primary pressure reducing valve 81 and the secondary pressure reducing valve 82 in sequence, and then enters the gas phase of the liquid supplementing gas bottle 6 after being filtered by the low-pressure filter 83 to pressurize the liquid supplementing gas bottle 6. A
The pump in the gas cylinder 1 with pump can pump the LNG in the gas cylinder 1 with pump into the high-pressure vaporizer 21 for vaporization, and then the vaporized natural gas enters the high-pressure buffer tank 22 for buffering and then enters the gas engine 3 for combustion. The liquid supplementing gas cylinder 6 can supplement liquid for the gas cylinder 1 with the pump through the liquid supplementing pipe 7, and therefore the endurance mileage is increased.
The liquid supplementing pipe 7, the first liquid inlet pipe 41, the second liquid inlet pipe 42 and the gas supply pipe 2 are all connected in series with a check valve 11 for preventing backflow, and the second liquid inlet pipe 42, the first gas phase pipe 51, the second gas phase pipe 52 and the liquid supplementing pipe 7 are all connected in series with a manual stop valve 12. After the manual stop valves 12 on the second liquid inlet pipe 42, the second gas phase pipe 52 and the liquid supplementing pipe 7 are closed, the gas cylinder 1 with the pump can be ensured to be independently used.
The first liquid inlet pipe 41 and the second liquid inlet pipe 42 are connected to a liquid inlet header pipe 43, and the first vapor phase pipe 51 and the second vapor phase pipe 52 are connected to a vapor phase header pipe 53.
The gas cylinder 1 with the pump is also connected with a liquid discharge pipe 61 for emptying the gas cylinder 1 with the pump, and the liquid discharge pipe 61 is connected with a manual stop valve 12 in series.
The gas supply pipe 2 and the second gas phase pipe 52 are respectively connected with one end of a vent pipe 62, and a safety valve 63 is connected in series on each vent pipe 62.
Claims (10)
1. A pumped two-cylinder air supply system with supercharging function for a gas engine, comprising: take the pump gas cylinder, the pump of taking the pump gas cylinder goes out the liquid mouth and links to each other with the one end of gas supply pipe, and the other end of gas supply pipe is used for linking to each other with the engine and provides the gas for the engine, and it has high-pressure vaporizer and high-pressure buffer tank to establish ties on the gas supply pipe, and high-pressure vaporizer is located high-pressure buffer tank and takes between the pump gas cylinder, and the inlet of taking the pump gas cylinder links to each other with the one end of first feed liquor pipe, and the gaseous phase mouth of taking the pump gas cylinder links to each other its characterized in that with the one end of first gaseous phase pipe: further comprising: the liquid inlet of the liquid supplementing gas bottle is connected with one end of a second liquid inlet pipe, the gas phase port of the liquid supplementing gas bottle is connected with one end of a second gas phase pipe, the liquid outlet of the liquid supplementing gas bottle is connected with one end of a liquid supplementing pipe, and the other end of the liquid supplementing pipe is connected with the liquid inlet of the gas bottle with the pump; one end of the pressure increasing pipe is connected with a fuel gas supply pipe behind the high-pressure buffer tank, the other end of the pressure increasing pipe is connected with the second gas phase pipe, a primary pressure reducing valve, a secondary pressure reducing valve and an electromagnetic valve are sequentially connected in series on the pressure increasing pipe, high-pressure vaporized natural gas in the high-pressure buffer tank can be reduced in pressure through the primary pressure reducing valve and the secondary pressure reducing valve sequentially after entering the pressure increasing pipe, and then the liquid supplementing gas cylinder is pressurized in a gas phase entering the liquid supplementing gas cylinder.
2. The pumped two-cylinder gas supply system with supercharging function for a gas engine according to claim 1, characterized in that: the liquid supplementing pipe, the first liquid inlet pipe, the second liquid inlet pipe and the fuel gas supply pipe are all connected in series with a one-way valve for preventing backflow, and the second liquid inlet pipe, the first gas phase pipe, the second gas phase pipe, the liquid supplementing pipe and the pressure increasing pipe are all connected in series with a manual stop valve.
3. The pumped two-bottle air supply system with supercharging function for a gas engine according to claim 1 or 2, characterized in that: the first liquid inlet pipe and the second liquid inlet pipe are both connected with a liquid inlet header pipe, and the first gas phase pipe and the second gas phase pipe are both connected with a gas phase header pipe.
4. The pumped two-bottle air supply system with supercharging function for a gas engine according to claim 1 or 2, characterized in that: the gas cylinder with the pump is also connected with a liquid discharge pipe for emptying the gas cylinder with the pump.
5. The pumped two-bottle air supply system with supercharging function for a gas engine according to claim 1 or 2, characterized in that: the gas supply pipe and the second gas phase pipe are respectively connected with one end of one emptying pipe, and safety valves are connected on the emptying pipes in series.
6. A pumped two-cylinder air supply system with supercharging function for a gas engine, comprising: take the pump gas cylinder, the pump of taking the pump gas cylinder goes out the liquid mouth and links to each other with the one end of gas supply pipe, and the other end of gas supply pipe is used for linking to each other with the engine and provides the gas for the engine, and it has high-pressure vaporizer and high-pressure buffer tank to establish ties on the gas supply pipe, and high-pressure vaporizer is located high-pressure buffer tank and takes between the pump gas cylinder, and the inlet of taking the pump gas cylinder links to each other with the one end of first feed liquor pipe, and the gaseous phase mouth of taking the pump gas cylinder links to each other its characterized in that with the one end of first gaseous phase pipe: further comprising: the liquid inlet of the liquid supplementing gas bottle is connected with one end of a second liquid inlet pipe, the gas phase port of the liquid supplementing gas bottle is connected with one end of a second gas phase pipe, the liquid outlet of the liquid supplementing gas bottle is connected with one end of a liquid supplementing pipe, and the other end of the liquid supplementing pipe is connected with the liquid inlet of the gas bottle with the pump; one end of the pressure increasing pipe is connected with the engine, so that high-pressure return air in an engine injection system can enter the pressure increasing pipe, the other end of the pressure increasing pipe is connected with the second gas phase pipe, a primary pressure reducing valve, a secondary pressure reducing valve, a low-pressure air filter and an electromagnetic valve are sequentially connected in series on the pressure increasing pipe, the high-pressure return air in the engine enters the pressure increasing pipe, then is sequentially decompressed through the primary pressure reducing valve and the secondary pressure reducing valve, and then enters the gas phase of the liquid supplementing gas cylinder after being filtered by the low-pressure filter to pressurize the liquid supplementing gas cylinder.
7. The pumped two-cylinder gas supply system with supercharging function for a gas engine according to claim 6, characterized in that: the liquid supplementing pipe, the first liquid inlet pipe, the second liquid inlet pipe and the fuel gas supply pipe are all connected in series with a one-way valve for preventing backflow, and the second liquid inlet pipe, the first gas phase pipe, the second gas phase pipe and the liquid supplementing pipe are all connected in series with a manual stop valve.
8. The pumped two-bottle air supply system with a supercharging function for a gas engine according to claim 6 or 7, characterized in that: the first liquid inlet pipe and the second liquid inlet pipe are both connected with a liquid inlet header pipe, and the first gas phase pipe and the second gas phase pipe are both connected with a gas phase header pipe.
9. The pumped two-bottle air supply system with a supercharging function for a gas engine according to claim 6 or 7, characterized in that: the gas cylinder with the pump is also connected with a liquid discharge pipe for emptying the gas cylinder with the pump.
10. The pumped two-bottle air supply system with a supercharging function for a gas engine according to claim 6 or 7, characterized in that: the gas supply pipe and the second gas phase pipe are respectively connected with one end of one emptying pipe, and safety valves are connected on the emptying pipes in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110765703.3A CN113482803A (en) | 2021-07-07 | 2021-07-07 | Double-bottle gas supply system with pump and with pressurization function for gas engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110765703.3A CN113482803A (en) | 2021-07-07 | 2021-07-07 | Double-bottle gas supply system with pump and with pressurization function for gas engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113482803A true CN113482803A (en) | 2021-10-08 |
Family
ID=77941688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110765703.3A Pending CN113482803A (en) | 2021-07-07 | 2021-07-07 | Double-bottle gas supply system with pump and with pressurization function for gas engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113482803A (en) |
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2021
- 2021-07-07 CN CN202110765703.3A patent/CN113482803A/en active Pending
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