CN211423991U

CN211423991U - Bottom side type low-temperature LNG (liquefied natural gas) cylinder gas inlet and outlet pipeline device

Info

Publication number: CN211423991U
Application number: CN201922393950.6U
Authority: CN
Inventors: 王光艳; 林金良; 杨传雄; 邓凤霞
Original assignee: Dongfeng Automobile Co Ltd
Current assignee: Dongfeng Automobile Co Ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-09-04
Anticipated expiration: 2029-12-26

Abstract

The utility model relates to a bottom side formula low temperature LNG gas cylinder business turn over gas piping arrangement. The device comprises a liquid filling panel, a buffer tank and a water bath type vaporizer, wherein the liquid filling panel is provided with an air charging seat, a pressure gauge and an air return seat, the air return seat is connected with an air return valve of the gas cylinder through an air return pipe, an air return gun is connected with the air return seat, and the pressure in the gas cylinder is released through the air return gun; the buffer tank is connected with the engine through an air outlet pipe, the buffer tank is connected with the water bath type vaporizer through a buffer tank air inlet pipe, the water bath type vaporizer is connected with the air storage tank through a vaporizer air inlet pipe, and the air charging seat is connected with the inside of the air bottle through an air guide pipe. The utility model discloses the logic is simple, simple to operate arranges the compactness, convenient to use, sturdy and durable characteristics, satisfies the gas pitcher and gives vent to anger, admits air, atmospheric pressure control and regulatory action, satisfies the experimental requirement of the on-vehicle low temperature gas pitcher device type of country, satisfies the striking under the on-vehicle environment, and the fever falls performance safety requirement. The device is developed for Dongfeng brand clean energy sanitation vehicle.

Description

Bottom side type low-temperature LNG (liquefied natural gas) cylinder gas inlet and outlet pipeline device

Technical Field

The utility model relates to a LNG new energy automobile especially relates to a bottom side formula low temperature LNG gas cylinder business turn over gas piping arrangement.

Background

The vehicle is a clean energy vehicle which is improved on the basis of a fuel vehicle and takes low-temperature natural gas as fuel to meet the requirements of the national six-environment-friendly vehicle type. Because the gas outlet of LNG gas cylinder is behind high-pressure management and control system, be connected with the engine, provide fuel supply for the engine, bottom side formula low temperature LNG gas cylinder business turn over gas piping installation is one kind of the arrangement mode of LNG gas bomb gas outlet system, possess the logic simple, high durability and convenient installation, arrange compactly, high durability's characteristics, satisfy the gas pitcher and give vent to anger, admit air, atmospheric pressure control and regulatory action, this device, satisfy the experimental requirement of the on-vehicle low temperature gas bomb device type of country, satisfy striking, the fever under the on-vehicle environment, fall performance safety requirement.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, the utility model provides a bottom side formula low temperature LNG gas cylinder business turn over gas piping installation, the device simple to operate arranges the compactness, convenient to use.

The utility model adopts the technical proposal that: the utility model provides a bottom side formula low temperature LNG gas cylinder business turn over gas piping installation which characterized in that: the gas cylinder comprises a liquid filling panel, a buffer tank and a water bath type vaporizer, wherein the liquid filling panel is provided with a gas filling seat, a pressure gauge and a gas return seat, the gas return seat is connected with a gas return valve of a gas cylinder through a gas return pipe, a gas return gun is connected with the gas return seat, and the pressure in the gas cylinder is released through the gas return gun; the buffer tank is connected with the engine through an air outlet pipe, the buffer tank is connected with the water bath type vaporizer through a buffer tank air inlet pipe, the water bath type vaporizer is connected with an air storage tank through a vaporizer air inlet pipe, and the air charging seat is connected with the air bottle through an air guide pipe.

Preferably, the system also comprises a pressurized air return hard pipe assembly and a pressurized liquid outlet hard pipe assembly.

Preferably, the air return pipe and the air guide pipe are both corrugated metal hoses.

The utility model discloses the beneficial effect who gains is: the utility model discloses possess the logic simple, simple to operate arranges the compactness, convenient to use, sturdy and durable characteristics, satisfy the gas pitcher and give vent to anger, admit air, atmospheric pressure control and regulatory action, satisfy the experimental requirement of the on-vehicle low temperature gas pitcher device type of country, satisfy the striking under the on-vehicle environment, the fever falls performance safety requirement. The device is specially developed for Dongfeng brand clean energy sanitation vehicle, and the bottom-side low-temperature LNG cylinder gas inlet and outlet pipeline device is connected with the LNG cylinder, so that the device has good safety and reliability. Meets the requirements of users and the industry standard.

Drawings

Fig. 1 is a schematic structural view of the present invention;

reference numerals: 1. a liquid filled panel; 2. an air charging seat; 3. a pressure gauge; 4. a gas return seat; 5. a buffer tank; 6. a water bath vaporizer; 7. an air return pipe; 8. a pressure boost return hard tube assembly; 9. an air outlet pipe; 10. an air inlet pipe of the buffer tank; 11. a vaporizer air inlet pipe; 12. an air duct; 13. and (4) pressurizing the liquid outlet hard pipe assembly.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, the utility model discloses a bottom side formula low temperature LNG gas cylinder business turn over gas piping installation, including liquid filling panel 1, buffer tank 5 and water bath vaporizer 6, be equipped with on the liquid filling panel 1 with gas charging seat 2, manometer 3 and air return seat 4, air return seat 4 passes through air return pipe 7 and is connected with gas cylinder return valve, air return pipe 7 adopts corrugated metal hose, during the liquid feeding of hydraulic pressure station, if gas cylinder pressure is higher, the liquid feeder is under pressure differential's effect, can not be full of the gas cylinder, at this moment, gas cylinder pressure passes through the air return pipe release, the liquid feeding station is equipped with the air return gun, the back is connected with air return seat 4 to the air return gun, gas cylinder pressure will pass through the release of air return gun, drop to the required pressure of filling station to pressure, can normally add the liquid after the pressure is normal.

Buffer tank 5 is connected with the engine through outlet duct 9, and buffer tank 5 is connected with water bath vaporizer 6 through buffer tank intake pipe 10, and water bath vaporizer 6 passes through vaporizer intake pipe 11 and gas holder connection, and air entrainment seat 2 passes through air duct 12 and gas cylinder internal connection. High-pressure low-temperature gas comes out of the gas storage tank, the gas cannot directly enter a combustion chamber of the engine, a buffer tank 5 is needed, and the high-pressure low-temperature gas reaches qualified air pressure through the buffer tank 5 and then enters the combustion chamber of the engine; the water bath type vaporizer 6 is used for increasing the temperature of low-temperature gas before the low-temperature gas enters the engine, because the low-temperature LNG gas cannot directly enter a combustion chamber of the engine and the temperature is too low to be used, the water bath type vaporizer 6 heats up the cooling gas to reach the temperature for combustion of the engine.

The air duct 12 adopts a corrugated metal hose, the corrugated pipe is beneficial to bending, and in the use process, due to reasons such as vibration and the like, the air duct 12 and the air storage tank move relatively, so that the air duct 12 is prevented from being broken in the use process, and the corrugated pipe connection mode is adopted, so that the air duct can play a role in guiding air and can also meet the requirement of relative bending movement.

The utility model discloses a bottom side formula low temperature LNG gas cylinder business turn over gas piping installation still includes pressure boost return air hard tube subassembly 8 and pressure boost play liquid hard tube subassembly 13, and pressure boost play liquid hard tube subassembly 13 is connected with the pressure boost stop valve, if its gas pressure in the gas cylinder is greater than when the gas pressure that the engine can bear, is used for the pressure release.

The foregoing shows and describes the general principles and principal structural features of the invention. The present invention is not limited by the above-mentioned examples, and the present invention can be modified in various ways without departing from the spirit and scope of the present invention, and these modifications and improvements fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a bottom side formula low temperature LNG gas cylinder business turn over gas piping installation which characterized in that: the gas cylinder comprises a liquid filling panel, a buffer tank and a water bath type vaporizer, wherein the liquid filling panel is provided with a gas filling seat, a pressure gauge and a gas return seat, the gas return seat is connected with a gas return valve of a gas cylinder through a gas return pipe, a gas return gun is connected with the gas return seat, and the pressure in the gas cylinder is released through the gas return gun; the buffer tank is connected with the engine through an air outlet pipe, the buffer tank is connected with the water bath type vaporizer through a buffer tank air inlet pipe, the water bath type vaporizer is connected with an air storage tank through a vaporizer air inlet pipe, and the air charging seat is connected with the air bottle through an air guide pipe.

2. The bottomside cryogenic LNG gas cylinder gas inlet and outlet pipeline apparatus of claim 1, characterized in that: the device also comprises a pressurization air return hard pipe assembly and a pressurization liquid outlet hard pipe assembly.

3. The bottomside cryogenic LNG gas cylinder gas inlet and outlet pipeline apparatus of claim 1, characterized in that: the air return pipe and the air guide pipe are both corrugated metal hoses.