CN210372860U - Air supply device for vehicle - Google Patents
Air supply device for vehicle Download PDFInfo
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- CN210372860U CN210372860U CN201920149492.9U CN201920149492U CN210372860U CN 210372860 U CN210372860 U CN 210372860U CN 201920149492 U CN201920149492 U CN 201920149492U CN 210372860 U CN210372860 U CN 210372860U
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Abstract
The gas supply device for the vehicle comprises a gas cylinder and a liquid outlet device, wherein the liquid outlet device is arranged to lead out liquid and gas in the gas cylinder. The utility model discloses during the use, through the liquid-out device with the gas cylinder in liquid and gaseous back of deriving, supply vehicle uses, avoid gas backflow in the gas cylinder to cause gas cylinder internal gas pressure too high, and then make the gas cylinder relief valve open the gassing, cause the waste of natural gas.
Description
Technical Field
The utility model relates to an air feeder especially relates to an automobile-used air feeder.
Background
With the promotion of new energy industry in China, natural gas automobiles and natural gas cylinders for vehicles are effectively popularized. But receive the influence of gas cylinder self characteristic, the phenomenon of liquid natural gas existence gasification pressure boost in the gas cylinder, after pressure boost to a certain degree, the relief valve can be opened, discharges gaseous natural gas.
In order to effectively utilize natural gas in a cylinder and avoid waste caused by the tripping of a safety valve, an economic valve structure is usually arranged on the gas cylinder. The structure of the economic valve is that a gas outlet and a liquid outlet in the gas cylinder are connected together through a pipeline, then gas is discharged from the common channel, however, low-temperature liquid flows into the economic valve connecting pipe through the liquid outlet and exchanges heat with air for gasification, high-pressure gas is formed and flows back into the gas cylinder through the gas phase outlet, and the gas cylinder is pressurized. Under this condition, the economic valve structure that is used for the step-down originally has become the pressure intensifying structure on the contrary, makes the gas pressure in the bottle too high, and then makes the gas cylinder relief valve open, deflates to the natural gas in the bottle, leads to the natural gas extravagant.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above-mentioned problem that exists among the prior art, provide an avoid the automobile-used air feeder of gas cylinder internal pressure too high.
In order to realize the technical purpose, the technical effect is achieved, the utility model discloses a realize through following technical scheme:
the gas supply device for the vehicle comprises a gas cylinder and a liquid outlet device, wherein the liquid outlet device is arranged to lead out liquid and gas in the gas cylinder.
Automobile-used air feeder, wherein, play liquid installation includes first liquid outlet pipe, goes out liquid valve and exhaust apparatus, it sets up to go out the liquid valve first liquid outlet pipe is last, first liquid outlet pipe one end with gas cylinder liquid phase intercommunication, exhaust apparatus one end with gas cylinder gaseous phase intercommunication, the other end with first liquid outlet pipe intercommunication, and be in the gas cylinder is normal during operation, first liquid outlet pipe with the atmospheric pressure of exhaust apparatus junction department is less than gas cylinder gaseous phase atmospheric pressure in the gas cylinder.
Automobile-used air feeder, wherein, exhaust apparatus includes economic valve and the pipeline of giving vent to anger, economic valve sets up on the pipeline of giving vent to anger, give vent to anger pipeline one end with first liquid pipeline intercommunication, and set up out the liquid valve on the first liquid pipeline between connecting point and the gas cylinder.
Automobile-used air feeder, wherein, it is the stop valve to go out the liquid valve, and can open and close.
Automobile-used air feeder, wherein, the gas cylinder top is provided with the relief valve, the relief valve can be closed and open according to gas cylinder internal pressure.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses during the use, through the liquid-out device with the gas cylinder in liquid and gaseous back of deriving, supply vehicle uses, avoid gas backflow in the gas cylinder to cause gas cylinder internal gas pressure too high, and then make the gas cylinder relief valve open the gassing, cause the waste of natural gas.
Drawings
FIG. 1 is a view of the overall structure of the present invention;
Detailed Description
Referring to fig. 1, it should be understood by those skilled in the art that the terms "upper", "top", "bottom", "one end", "the other end" and the like in the disclosure of the present invention are based on the orientations and positional relationships shown in the drawings, which are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the above terms should not be construed as limiting the present invention. The embodiment is an automobile-used gas supply device, including gas cylinder 100, still including going out liquid device 200, it is set up to derive liquid and gas in the gas cylinder 100 to go out liquid device 200, during the use, through going out liquid device 200 with gas derivation back in the gas cylinder 100, supply with the vehicle and use, avoid gas reflux in the gas cylinder 100 to cause gas cylinder 100 internal gas pressure too high, and then make the gas cylinder relief valve open the gassing, cause the waste of natural gas.
In the vehicular air supply device provided in this embodiment, the liquid outlet device 200 includes a first liquid outlet pipe 210, a liquid outlet valve 220 and an air exhaust device 230, the liquid outlet valve can be a stop valve, as long as the opening and closing of the first liquid outlet pipe 210 can be controlled, the liquid outlet valve 220 is disposed on the first liquid outlet pipe 210, one end of the first liquid outlet pipe 210 is in liquid-phase communication with the air cylinder 100, that is, in liquid communication with the air cylinder 100, and is used for exhausting the liquid in the air cylinder 100, specifically, the first liquid outlet pipe 210 can be connected to the bottom of the air cylinder 100, one end of the air exhaust device 230 is in gas-phase communication with the air cylinder 100, that is, in gas-phase communication with the air cylinder 100, specifically, the top of the air cylinder 100, and the other end of the air cylinder are in communication with the first liquid outlet pipe 210, when the air cylinder 100 normally works, the air pressure at the connection point of the first liquid outlet pipe 210 and the air exhaust device 230 is less than the air pressure in the, the gas in the bottle can be normal discharges through exhaust apparatus 230, has avoided normal during operation, and the phenomenon in the natural gas backward flow gas cylinder 100 has avoided the continuous increase of gas cylinder internal pressure, and when needing to explain, normal work means, and the gas cylinder is normal to the vehicle air feed, and the pressure of junction point department means liquefied natural gas because the high temperature after the gasification of ambient temperature, need to explain that first liquid pipeline 210 keeps away from gas cylinder one end and vehicle connection, and this is prior art, does not do detailed explanation here, concrete connection does not do the utility model discloses the technical problem who solves does not do detailed explanation here.
The gas supply device for the vehicle provided by this embodiment, the exhaust device 230 includes an economic valve 231 and a gas outlet pipe 232, the economic valve 231 is disposed on the gas outlet pipe 232, one end of the gas outlet pipe 232 is communicated with the first liquid outlet pipe 210, and the first liquid outlet pipe 210 between the connection point and the gas cylinder 100 is disposed with the liquid outlet valve 220, after the liquid in the gas cylinder 100 passes through the first liquid outlet pipe 210 and the liquid outlet valve 220, there is a great gas pressure difference, the connection point of the gas outlet pipe 232 and the first liquid outlet pipe 210 is located behind the liquid outlet valve 220, due to the existence of the gas pressure difference, it can be ensured that the gas pressure at the connection point is smaller than the gas phase in the gas cylinder 100, that the gas does not flow backwards at this time, thereby avoiding the gas pressure in the gas cylinder 100 from being too high, it should be noted that the economic valve 231 can be set to be opened when the gas pressure in the gas cylinder 100 is too high, and closed when the pressure is too low, the pressure set by the economic valve 231 The economizer valve 231 is commercially available and will not be described in detail.
In the gas supply device for the vehicle provided in this embodiment, the top of the gas cylinder 100 is provided with the safety valve 300, the safety valve 300 can be closed and opened according to the pressure in the gas cylinder 100, the safety valve 300 can be purchased directly from the market, and will not be described in detail herein, the pressure of the safety valve 300 is set to be higher than the pressure of the economy valve 231, so as to prevent the safety valve from being opened when the pressure of the economy valve 231 is not reached, and to discharge the gas in the gas cylinder 100.
The above-mentioned embodiments are only to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.
Claims (4)
1. The vehicle gas supply device comprises a gas cylinder (100) and is characterized by further comprising a liquid outlet device (200), wherein the liquid outlet device (200) is arranged to lead out liquid and gas in the gas cylinder (100);
the liquid outlet device (200) comprises a first liquid outlet pipeline (210), a liquid outlet valve (220) and an exhaust device (230), the liquid outlet valve (220) is arranged on the first liquid outlet pipeline (210), one end of the first liquid outlet pipeline (210) is communicated with a liquid phase of the gas cylinder (100), one end of the exhaust device (230) is communicated with a gas phase of the gas cylinder (100), the other end of the exhaust device is communicated with the first liquid outlet pipeline (210), and when the gas cylinder (100) normally works, the gas pressure at the joint of the first liquid outlet pipeline (210) and the exhaust device (230) is smaller than the gas phase gas pressure in the gas cylinder (100).
2. The vehicle gas supply device according to claim 1, wherein the gas exhaust device (230) comprises an economizer valve (231) and a gas outlet pipe (232), the economizer valve (231) is arranged on the gas outlet pipe (232), one end of the gas outlet pipe (232) is communicated with the first liquid outlet pipe (210), and a liquid outlet valve (220) is arranged on the first liquid outlet pipe (210) between the connection point and the gas cylinder (100).
3. A gas supply device for vehicle according to claim 2, wherein said outlet valve (220) is a shut-off valve and can be opened and closed.
4. The gas supply device for vehicle according to claim 2, wherein a safety valve (300) is provided at the top of the gas cylinder (100), and the safety valve (300) is capable of closing and opening according to the pressure in the gas cylinder (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920149492.9U CN210372860U (en) | 2019-01-29 | 2019-01-29 | Air supply device for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920149492.9U CN210372860U (en) | 2019-01-29 | 2019-01-29 | Air supply device for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210372860U true CN210372860U (en) | 2020-04-21 |
Family
ID=70245158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920149492.9U Active CN210372860U (en) | 2019-01-29 | 2019-01-29 | Air supply device for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210372860U (en) |
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2019
- 2019-01-29 CN CN201920149492.9U patent/CN210372860U/en active Active
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