CN217518749U - Gas supply device of vehicle-mounted gas generator unit - Google Patents
Gas supply device of vehicle-mounted gas generator unit Download PDFInfo
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- CN217518749U CN217518749U CN202221519060.0U CN202221519060U CN217518749U CN 217518749 U CN217518749 U CN 217518749U CN 202221519060 U CN202221519060 U CN 202221519060U CN 217518749 U CN217518749 U CN 217518749U
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Abstract
The utility model provides a vehicle-mounted gas generator unit gas supply device belongs to cold chain transport vechicle technical field. The gas supply device of the vehicle-mounted gas generator unit comprises a gas supply pipeline and a first pressure regulating valve, the gas supply pipeline is used for being connected with an engine intake manifold of the gas generator unit, the first pressure regulating valve is arranged on the gas supply pipeline, and the first pressure regulating valve is connected with the engine intake manifold through a pressure feedback pipeline. In the cold chain transport vechicle, this on-vehicle gas generator unit gas feeding device can use with traditional air supply system mutually independent, and on-vehicle gas generator unit gas feeding device does not influence each other with traditional air supply system, guarantees that the air feed is stable.
Description
Technical Field
The utility model relates to a cold chain transport vechicle technical field particularly, relates to an on-vehicle gas generator unit gas feeding device.
Background
With the increasing global environmental pollution, the increasing environmental pollution poses a direct threat to the human living environment, so in recent years, people's awareness of environmental protection is gradually increased, and the damage to the ecological environment is also reduced as much as possible by means and methods, wherein the exhaust emission in the air is particularly attractive, so the atmospheric pollution is an urgent problem to be solved all over the world.
At present, all countries in the world actively search and develop new clean energy for replacing the original energy, and the purpose of the new clean energy is to reduce the emission of air pollution and waste gas. LNG (liquefied natural gas) is a new clean energy source, and its environmental protection and economic applicability determine that it will occupy an important position in the future energy field.
At present, LNG is widely used as power energy in freight cars and cold chain transport vehicles in China, the LNG power cold chain transport vehicle in the traditional form only has one set of gas supply system, the gas supply system not only needs to supply gas for a main engine of the cold chain transport vehicle, but also needs to supply gas for engines in a secondary gas generator unit, wherein the main engine provides power for vehicle running, the secondary gas generator unit supplies power for refrigerators on the cold chain transport vehicle, and as the set of gas supply system supplies gas for two engines respectively, unstable gas supply is easy to occur, in addition, the pressure in an engine intake manifold is passively changed under the influence of the power of the generators, and the gas supply pressure of the existing gas supply system is usually unchanged during working, so that the difference between the gas supply pressure and the pressure in the engine intake manifold is difficult to keep at a constant value, and the working effect of the refrigerators is finally influenced.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solve at least one of the above problems.
In order to solve the problem, the utility model provides a vehicle-mounted gas generator unit gas feeding device for to the gas generator unit air feed of cold chain transport vechicle, the gas generator unit is used for supplying power to on-vehicle refrigerator, and vehicle-mounted gas generator unit gas feeding device includes gas supply pipeline and first air-vent valve, the gas supply pipeline be used for with the engine air intake manifold of gas generator unit connects, first air-vent valve set up in gas air feed gas supply pipeline, just first air-vent valve pass through the pressure feedback pipeline with engine air intake manifold connects.
The utility model provides a pair of on-vehicle gas generator unit gas feeding device compares in prior art, has but not limit to following beneficial effect:
in the cold chain transport vechicle, this on-vehicle gas generator unit gas feeding device can use with traditional air supply system mutually independent, and on-vehicle gas generator unit gas feeding device is the engine air feed in the gas generator unit promptly, and traditional air supply system is only main engine air feed, and on-vehicle gas generator unit gas feeding device does not influence each other with traditional air supply system, and then guarantees that the engine in main engine and the gas generator unit all has a stable air supply system. In addition, when the vehicle-mounted gas generator unit gas supply device supplies gas to the gas generator unit through the gas supply pipeline, particularly when the gas supply device supplies gas to an engine intake manifold of an engine in the gas generator unit, even if the internal pressure of the engine intake manifold changes under the influence of the power change of the generator, the first pressure regulating valve can be a feedback type pressure reducing valve, the feedback type pressure reducing valve can obtain the implementation pressure in the engine intake manifold through the pressure feedback pipeline, and then the supply pressure to the engine intake manifold is adjusted through the feedback type pressure reducing valve, so that the difference value between the supply pressure and the changed internal pressure of the engine intake manifold is kept constant, the stability of the operation of the engine in the gas generator unit is further ensured, and the good working effect of the refrigerator is also ensured.
Further, the fuel gas supply device of the vehicle-mounted fuel gas generator unit further comprises an LNG storage tank and a vaporizer, the LNG storage tank is arranged at one end of the fuel gas supply pipeline and connected with the other end of the fuel gas supply pipeline and connected with the engine intake manifold, the vaporizer is arranged on the fuel gas supply pipeline, and the vaporizer is located between the LNG storage tank and the first pressure regulating valve.
Further, the gas supply device of the vehicle-mounted gas generator set further comprises a second pressure regulating valve, the second pressure regulating valve is arranged on the gas supply pipeline, and the second pressure regulating valve is located between the carburetor and the first pressure regulating valve.
Further, the gas supply device of the vehicle-mounted gas generator set further comprises a heater, and the heater is arranged on the carburetor.
Further, the gas supply device of the vehicle-mounted gas generator set further comprises a buffer tank, the buffer tank is arranged on the gas supply pipeline, and the buffer tank is located between the vaporizer and the first pressure regulating valve.
Further, the gas supply device of the vehicle-mounted gas generator set further comprises an injection gas rail and a mixer, the injection gas rail and the mixer are respectively arranged on the gas supply pipeline, the injection gas rail is located between the first pressure regulating valve and the engine intake manifold, and the mixer is located between the injection gas rail and the engine intake manifold.
Further, the gas supply device of the vehicle-mounted gas generator set further comprises an electronic throttle valve, the electronic throttle valve is arranged on the gas supply pipeline, and the electronic throttle valve is located between the mixer and the engine intake manifold.
Further, the gas supply device of the vehicle-mounted gas generator set further comprises a filter, the filter is arranged on the gas supply pipeline, and the first pressure regulating valve is located between the filter and the engine air inlet manifold.
Further, the gas supply device of the vehicle-mounted gas generator set further comprises a valve piece, the valve piece is arranged on the gas supply pipeline, and the valve piece is used for connecting or disconnecting the gas supply pipeline.
Further, the valve member is an electromagnetic valve.
Drawings
Fig. 1 is a schematic structural view of a gas supply device of an on-vehicle gas generator set according to an embodiment of the present invention.
Description of the labeling:
1. a gas supply line; 2. an engine intake manifold; 3. a first pressure regulating valve; 4. an LNG storage tank; 5. a vaporizer; 6. a heater; 7. a second pressure regulating valve; 8. a buffer tank; 9. injecting an air rail; 10. a mixer; 11. an electronic throttle; 12. a filter; 13. a valve member; 14. a pressure feedback line.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.
The terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include at least one of the feature.
At present, LNG is widely used as power energy in freight cars and cold chain transport vehicles in China, the LNG power cold chain transport vehicle in the traditional form only has one set of gas supply system, the gas supply system not only needs to supply gas for a main engine of the cold chain transport vehicle, but also needs to supply gas for engines in a secondary gas generator unit, wherein the main engine provides power for vehicle running, the secondary gas generator unit supplies power for refrigerators on the cold chain transport vehicle, and as the set of gas supply system supplies gas for two engines respectively, unstable gas supply is easy to occur, in addition, the pressure in an engine intake manifold is passively changed under the influence of the power of the generators, and the gas supply pressure of the existing gas supply system is usually unchanged during working, so that the difference between the gas supply pressure and the pressure in the engine intake manifold is difficult to keep at a constant value, and the working effect of the refrigerators is finally influenced.
Referring to fig. 1, an embodiment of the present invention provides a gas supply device for a vehicle-mounted gas generator unit, for supplying gas to a gas generator unit of a cold chain transport vehicle, the gas generator unit is used for supplying power to a vehicle-mounted refrigerator, the gas supply device for the vehicle-mounted gas generator unit includes a gas supply pipeline 1 and a first pressure regulating valve 3, the gas supply pipeline 1 is used for connecting with an engine intake manifold 2 of the gas generator unit, the first pressure regulating valve 3 is disposed in the gas supply pipeline 1, and the first pressure regulating valve 3 is connected with the engine intake manifold 2 through a pressure feedback pipeline 14.
In this embodiment, in the cold chain transport vechicle, this on-vehicle gas generator unit gas feeding device can use with traditional air supply system mutually independent, both mutually noninterference, on-vehicle gas generator unit gas feeding device is the engine air feed in the gas generator unit promptly, and traditional air supply system is only main engine air feed, on-vehicle gas generator unit gas feeding device and traditional air supply system mutually do not influence, and then guarantee that main engine and the engine in the gas generator unit all have a stable air supply system.
In addition, when the gas supply device of the vehicle-mounted gas generator set supplies gas to the gas generator set through the gas supply pipeline 1, particularly when the gas supply device supplies gas to the engine intake manifold 2 of the engine in the gas generator set, even if the internal pressure of the engine intake manifold 2 changes under the influence of the power change of the generator, the first pressure regulating valve 3 can be a feedback type pressure reducing valve, the feedback type pressure reducing valve can obtain the implementation pressure in the engine intake manifold 2 through the pressure feedback pipeline 14, and then the supply pressure to the engine intake manifold 2 is adjusted through the feedback type pressure reducing valve, so that the difference value between the supply pressure and the changed internal pressure of the engine intake manifold 2 is kept constant, the stability of the operation of the engine in the gas generator set is further ensured, and the good working effect of the refrigerator is also ensured.
In the present embodiment, the function of the first pressure regulating valve 3 is exemplarily described, for example, if the pressure in the engine intake manifold 2 is 1bar and the required pressure difference is 4bar, the feedback pressure reducing valve adjusts the pressure to 5bar, and if the pressure in the engine intake manifold 2 fluctuates upwards to 1.5bar, the feedback pressure reducing valve adjusts the pressure to 5.5bar, thereby ensuring a constant pressure difference.
Referring to fig. 1, optionally, the gas supply device of the vehicle-mounted gas generator set further includes an LNG storage tank 4 and a vaporizer 5, the LNG storage tank 4 is disposed at one end of the gas supply pipeline 1 and connected to the other end of the gas supply pipeline 1, the vaporizer 5 is disposed on the gas supply pipeline 1, and the vaporizer 5 is located between the LNG storage tank 4 and the first pressure regulating valve 3.
In this embodiment, the gas source is not gaseous, and the gas source is preferably liquid, that is, after the liquid natural gas is changed into the gaseous natural gas, the gaseous natural gas is supplied to the engine intake manifold 2 through the gas supply line 1.
In this embodiment, because the gas source is liquid, LNG storage tank 4 promptly, the on-vehicle transportation of being convenient for reduces the space occupation to cold chain transport vechicle to the security is higher.
In this embodiment, one end of the gas supply pipeline 1 is connected to a gas source, that is, the LNG storage tank 4, and the other end of the gas supply pipeline 1 is connected to the engine intake manifold 2. The liquid natural gas is gasified into the gas fuel gas by the vaporizer 5.
Referring to fig. 1, the gas supply device of the vehicle-mounted gas generator set optionally further comprises a second pressure regulating valve 7, wherein the second pressure regulating valve 7 is arranged on the gas supply pipeline 1, and the second pressure regulating valve 7 is positioned between the carburetor 5 and the first pressure regulating valve 3.
In this embodiment, the liquid fuel gas is gasified into the gaseous fuel gas after entering the vaporizer 5, and in this process, it is difficult to ensure that the pressure of the gasified gaseous fuel gas is stable, so the pressure value just converted into the gaseous fuel gas is adjusted to a constant value by the second pressure adjusting valve 7, for example, the second pressure adjusting valve 7 is a pressure reducing valve, and the gasified gaseous fuel gas is reduced to a certain value, for example, to 6 bar.
Moreover, due to the existence of the second pressure regulating valve 7, the gas pressure entering the first pressure regulating valve 3 is ensured to be a lower and constant pressure, and the normal operation of the second pressure regulating valve 7 can be further ensured.
Referring to fig. 1, optionally, the gas supply device of the vehicle-mounted gas generator set further comprises a heater 6, and the heater 6 is arranged on the carburetor 5.
In this embodiment, the heater 6 that may be disposed on the vaporizer 5 heats the circulating water in the vaporizer 5, and after the circulating water is heated, the liquid fuel gas inside is gasified.
In this embodiment, this heater 6 can be linked with the controller, and then starts the preheating in advance under the low temperature condition, saves time for the gas generator unit can run fast.
Referring to fig. 1, optionally, the gas supply device of the vehicle-mounted gas generator set further includes a buffer tank 8, the buffer tank 8 is disposed on the gas supply pipeline 1, and the buffer tank 8 is located between the vaporizer 5 and the first pressure regulating valve 3.
In this embodiment, the natural gas portion decompressed by the second pressure regulating valve 7 is stored in the buffer tank 8, which is convenient for the next start-up of the gas engine, and further improves the operating efficiency of the gas engine.
Referring to fig. 1, optionally, the gas supply device of the vehicle-mounted gas generator set further includes an injection gas rail 9 and a mixer 10, the injection gas rail 9 and the mixer 10 are respectively disposed on the gas supply pipeline 1, the injection gas rail 9 is located between the first pressure regulating valve 3 and the engine intake manifold 2, and the mixer 10 is located between the injection gas rail 9 and the engine intake manifold 2.
In this embodiment, the gas regulated by the second pressure regulating valve 7 is injected into the mixer 10 through the injection gas rail 9, and is mixed with air in the mixer 10, and the mixed gas (natural gas and air) finally enters the engine intake manifold 2. The gas injection rail 9 can adjust the opening thereof, and the gas proportion of the mixed gas in the mixer 10 or the concentration of the mixed gas can be changed through the adjustment of the opening thereof.
Referring to fig. 1, optionally, the gas supply device of the vehicle-mounted gas generator set further includes an electronic throttle valve 11, where the electronic throttle valve 11 is disposed on the gas supply pipeline 1, and the electronic throttle valve 11 is located between the mixer 10 and the engine intake manifold 2.
In this embodiment, the electronic throttle 11 is disposed between the mixer 10 and the engine intake manifold 2, and by adjusting the opening of the electronic throttle 11, a proper amount of mixed gas can be injected into the engine intake pipe, so as to meet the requirements of the gas engine, ensure the dynamic fuel and air intake of the gas engine, and maintain the normal operation of the power and rotation speed required by the engine.
The electronic throttle 11 can be linked with a controller to realize remote control.
Referring to fig. 1, optionally, the gas supply device of the vehicle-mounted gas generator set further comprises a filter 12, the filter 12 is arranged on the gas supply pipeline 1, and the first pressure regulating valve 3 is located between the filter 12 and the engine intake manifold 2.
In this embodiment, the filter 12 is located between the buffer tank 8 and the first pressure regulating valve 3, and the filter 12 can filter out impurities in the gaseous fuel gas, thereby ensuring the reliability of the operation of the gas engine.
Referring to fig. 1, optionally, the gas supply device of the vehicle-mounted gas generator set further includes a valve 13, the valve 13 is disposed on the gas supply pipeline 1, and the valve 13 is used for connecting or disconnecting the gas supply pipeline 1.
In this embodiment, the valve element 13 is located between the filter 12 and the first pressure regulating valve 3, and the gas supply line 1 can be opened and closed by the valve element 13 to determine whether to supply gas to the gas engine (specifically, whether to supply gas to the engine intake manifold 2).
Optionally, the valve member 13 is a solenoid valve.
In this embodiment, the solenoid valve can be linked with the controller, and then remote control is realized.
The utility model discloses a further embodiment still provides a cold chain transport vechicle, and this cold chain transport vechicle includes main engine, main air supply system, gas generator unit, refrigerator and aforementioned on-vehicle gas generator unit gas feeding device, main air supply system is used for the gas supply to main engine, main engine is used for driving the cold chain transport vechicle and traveles, on-vehicle gas generator unit gas feeding device is arranged in to gas generator unit engine air intake manifold 2 in the air supply, and the generator in the gas generator unit is used for supplying power to the refrigerator.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Without departing from the spirit and scope of the present disclosure, those skilled in the art can make various changes and modifications, which will fall into the scope of the present disclosure.
Claims (10)
1. The utility model provides a vehicle-mounted gas generator unit gas feeding device, its characterized in that, vehicle-mounted gas generator unit gas feeding device is used for the gas generator unit air feed to the cold chain transport vechicle, the gas generator unit is used for supplying power to on-vehicle refrigerator, vehicle-mounted gas generator unit gas feeding device includes gas supply pipeline (1) and first air-vent valve (3), gas supply pipeline (1) be used for with the engine air intake manifold (2) of gas generator unit are connected, first air-vent valve (3) set up in gas air feed gas supply pipeline (1), just first air-vent valve (3) through pressure feedback pipeline with engine air intake manifold (2) are connected.
2. The gas supply device of claim 1, further comprising an LNG storage tank (4) and a vaporizer (5), wherein the LNG storage tank (4) is connected to one end of the gas supply line (1), the other end of the gas supply line (1) is connected to the engine intake manifold (2), the vaporizer (5) is arranged on the gas supply line (1), and the vaporizer (5) is located between the LNG storage tank (4) and the first pressure regulating valve (3).
3. The gas supply device of the on-board gas generator set according to claim 2, further comprising a second pressure regulating valve (7), wherein the second pressure regulating valve (7) is disposed in the gas supply line (1), and the second pressure regulating valve (7) is located between the carburetor (5) and the first pressure regulating valve (3).
4. The gas supply device of an on-board gas generator set according to claim 2, further comprising a heater (6), wherein the heater (6) is provided on the carburetor (5).
5. The gas supply device of the on-board gas generator set according to claim 2, further comprising a buffer tank (8), wherein the buffer tank (8) is disposed on the gas supply pipeline (1), and the buffer tank (8) is located between the vaporizer (5) and the first pressure regulating valve (3).
6. The vehicle gas generator set gas supply device according to claim 1, further comprising an injection gas rail (9) and a mixer (10), wherein the injection gas rail (9) and the mixer (10) are respectively disposed on the gas supply pipeline (1), the injection gas rail (9) is located between the first pressure regulating valve (3) and the engine intake manifold (2), and the mixer (10) is located between the injection gas rail (9) and the engine intake manifold (2).
7. The gas supply device of the on-board gas generator set according to claim 6, further comprising an electronic throttle valve (11), wherein the electronic throttle valve (11) is disposed on the gas supply pipe (1), and the electronic throttle valve (11) is located between the mixer (10) and the engine intake manifold (2).
8. The gas supply device of the on-board gas generator set according to claim 1, further comprising a filter (12), wherein the filter (12) is disposed on the gas supply line (1), and the first pressure regulating valve (3) is located between the filter (12) and the engine intake manifold (2).
9. The gas supply device of the on-board gas generator set according to claim 1, further comprising a valve member (13), wherein the valve member (13) is disposed on the gas supply line (1), and the valve member (13) is used for connecting or disconnecting the gas supply line (1).
10. The gas supply device of an on-board gas generator unit according to claim 9, wherein the valve member (13) is an electromagnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221519060.0U CN217518749U (en) | 2022-06-17 | 2022-06-17 | Gas supply device of vehicle-mounted gas generator unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221519060.0U CN217518749U (en) | 2022-06-17 | 2022-06-17 | Gas supply device of vehicle-mounted gas generator unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217518749U true CN217518749U (en) | 2022-09-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221519060.0U Active CN217518749U (en) | 2022-06-17 | 2022-06-17 | Gas supply device of vehicle-mounted gas generator unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217518749U (en) |
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2022
- 2022-06-17 CN CN202221519060.0U patent/CN217518749U/en active Active
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