CN114838288A - Novel gas supply system of automobile-used liquid hydrogen bottle and automobile-used bottle of LNG - Google Patents

Novel gas supply system of automobile-used liquid hydrogen bottle and automobile-used bottle of LNG Download PDF

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Publication number
CN114838288A
CN114838288A CN202210650129.1A CN202210650129A CN114838288A CN 114838288 A CN114838288 A CN 114838288A CN 202210650129 A CN202210650129 A CN 202210650129A CN 114838288 A CN114838288 A CN 114838288A
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China
Prior art keywords
bottle
pipeline
automobile
gas supply
vehicle
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Granted
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CN202210650129.1A
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Chinese (zh)
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CN114838288B (en
Inventor
王伟
王沙沙
王国营
王晓东
李慧莹
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Shandong Auyan New Energy Technology Co ltd
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Shandong Auyan New Energy Technology Co ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
    • F17C9/02—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/03006—Gas tanks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/005—Details of vessels or of the filling or discharging of vessels for medium-size and small storage vessels not under pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/03006—Gas tanks
    • B60K2015/03026—Gas tanks comprising a valve
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K2015/03309—Tanks specially adapted for particular fuels
    • B60K2015/03315—Tanks specially adapted for particular fuels for hydrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/058—Size portable (<30 l)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/012—Hydrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0302—Heat exchange with the fluid by heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0367—Localisation of heat exchange
    • F17C2227/0388—Localisation of heat exchange separate
    • F17C2227/039—Localisation of heat exchange separate on the pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/0408—Level of content in the vessel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0165—Applications for fluid transport or storage on the road
    • F17C2270/0184—Fuel cells
    • 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)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

The invention discloses a novel gas supply system for a vehicle liquid hydrogen bottle and an LNG vehicle bottle, which aims to solve the problems of complex pipelines, complex operation, higher cost, low automatic control system and the like of the conventional vehicle liquid hydrogen container. The gas supply system comprises a vehicle bottle, wherein a filling pipeline for filling gas is arranged on the vehicle bottle, a gas pipeline for supplying gas to the vehicle body is arranged on the filling pipeline in a communicated mode, and a pressure maintaining pipeline for maintaining pressure is arranged on the vehicle bottle. The invention obviously optimizes the pipeline flow through the common-port design of the filling pipeline, the pressure maintaining pipeline and the gas pipeline, and then greatly saves the space of pipeline layout, thereby greatly reducing the production cost of products, further greatly increasing the competitive advantage of enterprises, and in actual use, the invention can effectively adjust different pressure conditions in the vehicle bottle through the arrangement of the pressure maintaining pipeline, and further greatly ensures the stability of gas supply pressure.

Description

Novel gas supply system of automobile-used liquid hydrogen bottle and automobile-used bottle of LNG
Technical Field
The invention belongs to the technical field of automobile gas supply systems, and particularly relates to a novel gas supply system for a liquid hydrogen bottle and an LNG automobile bottle for a vehicle.
Background
The natural gas dual-fuel automobile is a novel alternative fuel automobile which is recognized in the world and has the advantages of energy conservation, low pollution, economy and safety. Generally, two fuel supply systems are provided, one of the fuel supply systems supplies natural gas or liquefied petroleum gas, the other fuel supply system supplies fuel except the natural gas or the liquefied petroleum gas, and the two fuel supply systems supply fuel to a cylinder according to a preset proportion, so that the vehicles which are mixed and combusted in the cylinder, such as CNG diesel dual-fuel vehicles or LPG diesel dual-fuel vehicles, are provided. The vehicles use CNG (or LPG) as main fuel, and diesel oil plays a role in ignition.
Liquid hydrogen and Liquefied Natural Gas (LNG) belong to ultralow-temperature flammable and explosive media, the traditional gas supply system has complex flow, various pipelines, a large number of valve pipes, all components are generally welded or in threaded connection, more connecting nodes exist, certain leakage hidden danger exists, the distance between a valve on a vehicle bottle and the ground is higher and higher along with the increasing volume and diameter of the vehicle bottle, the root valves of most pipelines are manual valves, corresponding switch operation needs to be carried out under different scenes, the personnel operation is inconvenient, even when a valve body leaks, the great potential safety hazard is caused by the fact that the valve cannot be closed in time due to high height, the integration optimization and the realization of the pipeline valve and the automation operation are particularly important, the traditional gas supply pipeline of the vehicle bottle is very long, the valves are numerous and complex to install, the cost can be reduced and the energy can be saved by carrying out optimization and innovation of a pipeline system, certain economic benefit and environmental protection benefit are generated
Therefore, in order to solve the problems of the leakage hidden trouble and the inconvenience of operation of the above-mentioned device, the cost is greatly increased, and the energy consumption is increased, it is urgently needed to improve the using effect of the device.
Disclosure of Invention
(1) Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a novel gas supply system for a vehicle-mounted liquid hydrogen bottle and an LNG vehicle-mounted bottle, and the gas supply system aims at solving the problems of complex pipeline, complex operation, higher cost, low automatic control system and the like of the conventional vehicle-mounted liquid hydrogen container.
The instability of pressure maintenance in a vehicle-mounted low-temperature gas supply system is innovated, the automation control is high, the pressurization effect is fast, and the dormancy period of a vehicle-mounted liquid hydrogen container is greatly prolonged.
(2) Technical scheme
In order to solve the technical problems, the invention provides a novel gas supply system for a liquid hydrogen bottle and an LNG vehicle bottle, which comprises the vehicle bottle, wherein a filling pipeline for filling is arranged on the vehicle bottle, a gas pipeline for supplying gas to a vehicle body is communicated with the filling pipeline, and a pressure maintaining pipeline for maintaining pressure is arranged on the vehicle bottle.
Preferably, the filling pipeline comprises a filling port, and the filling port adopts a vacuum tube design, so that two-phase flow of liquid hydrogen during filling is greatly reduced, and the reduction of filling rate and filling quality caused by gas entering a container during filling is avoided; the other end of feed liquor vacuum tube is equipped with and is used for preventing liquid hydrogen and LNG backward flow to get into fill the mouth or the feed liquor check valve of vehicle bottle for liquid hydrogen or liquefied natural play when getting into vehicle bottle through filling the setting of filling the pipeline, effectively avoid the condition that the refluence appears in the inside medium of vehicle bottle, adopt to fill the pipeline, use gas pipeline and empty pipe way sharing design and reduced its too high problem of gas cylinder static evaporation rate because of the pipeline arouses.
One side fixedly connected with feed liquor vacuum tube of filling the mouth, the one end and the automobile-used bottle of feed liquor vacuum tube communicate mutually, the other end of feed liquor vacuum tube is equipped with and is used for preventing liquid hydrogen and LNG backward flow to get into fill the mouth or feed liquor check valve in the automobile-used bottle, through the setting of filling the pipeline for liquid hydrogen or liquefied natural gas effectively avoid the condition that the refluence appears in the inside medium of automobile-used bottle when getting into automobile-used bottle, and effectively reduce thermal loss in the use, and maximum amplitude reduces automobile-used bottle static evaporation rate index, increases the hold time.
Further, it includes the outlet duct to use the gas pipeline, the bottom fixed mounting of outlet duct has and is used for control the gas root valve of outlet duct line switch, the below of using the gas root valve is equipped with the water bath formula vaporizer that is used for heating the air feed for low temperature gas heats in order to reach the air feed temperature through water bath formula vaporizer in the automobile-used bottle, thereby guarantees the continuous air feed to fuel cell or automobile engine.
Furthermore, the bottom end of the air outlet pipe is connected with the air inlet end of the water bath type vaporizer, the air exhaust end of the water bath type vaporizer is connected with the buffer tank, and one end of the air outlet pipe and the liquid inlet vacuum pipe share the same filling port.
Furthermore, the pressure maintenance pipeline comprises a self-pressurization pipeline, the self-pressurization pipeline is in penetrating connection with the inside of the vehicle bottle, the self-pressurization pipeline is provided with an internal heat exchanger used for exchanging heat of liquid in the vehicle bottle, and the low-temperature liquid in the vehicle bottle is heated and gasified by the arrangement of the internal heat exchanger, so that the pressure in the vehicle bottle is increased, the self-pressurization function is realized, and meanwhile, cooled gas after heat exchange with liquid medium flows through the water bath type vaporizer again to be heated, so that the final temperature can reach the use requirement.
Furthermore, two ends of the self-pressurization pipeline are respectively communicated with an air inlet and exhaust end box of the water bath type vaporizer, and the self-pressurization pipeline is provided with an electromagnetic valve A.
Furthermore, when filling mouth fixed connection feed liquor vacuum tube, fixedly connected with blow-down pipe, be equipped with safe annex on the blow-down pipe, the inside of automobile-used bottle is equipped with the level gauge that is used for carrying out real-time supervision to liquid level and pressure.
Furthermore, when the pressure of the bottle body is reduced, the pressure regulating valve realizes the adjustment of the opening degree of the valve body according to a pressure sensor signal, the pressure sensor signal is simultaneously given to the electromagnetic valve A to open the electromagnetic valve A, so that the hot hydrogen passing through the water bath type gasifier enters the interior of the vehicle bottle, the low-temperature liquid is further heated, and the working pressure of the vehicle bottle is maintained; when the pressure of the vehicle bottle is too high, a sensor signal is given to the electromagnetic valve A to close the electromagnetic valve A, so that the pressure of the vehicle bottle 1 is not overloaded.
(3) Advantageous effects
Compared with the prior art, the invention has the beneficial effects that: according to the invention, through the common-port design of the filling pipeline, the pressure maintaining pipeline and the gas pipeline, the pipeline flow is obviously optimized, and the space of pipeline layout is greatly saved, so that the production cost of the product is greatly reduced, the enterprise competitive advantage is greatly increased, and through the arrangement of the pressure maintaining pipeline, in actual use, different pressure conditions in the vehicle bottle can be effectively adjusted, and the stability of gas supply pressure is greatly ensured.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the apparatus of the present invention.
The labels in the figures are: 1-vehicle bottle, 2-filling pipeline, 3-gas pipeline, 4-pressure maintaining pipeline, 5-regulating valve, 6-buffer tank, 7-blow-down pipe, 8-safety accessory, 9-liquid level meter, 10-stop valve, 11-cleaning valve, 12-electromagnetic valve B, 201-filling port, 202-liquid inlet vacuum pipe, 203-liquid inlet check valve, 301-gas outlet pipe, 302-gas root valve, 303-water bath type vaporizer, 401-self-pressurizing pipeline, 402-internal heat exchanger and 403-electromagnetic valve A.
Detailed Description
The specific embodiment is a novel gas supply system for a liquid hydrogen bottle and an LNG vehicle bottle, the structural schematic diagram of which is shown in fig. 1, and the gas supply system comprises a vehicle bottle 1, a filling pipeline 2 for filling is arranged on the vehicle bottle 1, a gas pipeline 3 for supplying gas to a vehicle body is communicated with the filling pipeline 2, and a pressure maintaining pipeline 4 for maintaining pressure is arranged on the vehicle bottle 1.
Firstly, filling pipeline 2 includes filling port 201, one side fixedly connected with feed liquor vacuum tube 202 of filling port 201, the one end and the vehicle bottle 1 of feed liquor vacuum tube 202 are linked together, the other end of feed liquor vacuum tube 202 is equipped with and is used for preventing liquid hydrogen and LNG backward flow to get into filling port 201 or the interior feed liquor check valve 203 of vehicle bottle 1, through the setting of filling pipeline 2, make liquid hydrogen or liquefied natural gas when getting into vehicle bottle 1, the condition of refluence appears in the medium of effectively avoiding vehicle bottle 1 inside, and effectively reduce thermal loss in the use, and maximum amplitude reduces vehicle bottle static evaporation rate index, increase the hold time.
Subsequently, the gas pipeline 3 comprises a gas outlet pipe 301, a gas outlet root valve 302 for controlling the opening and closing of the gas outlet pipe 3 is fixedly installed at the bottom of the gas outlet pipe 301, and a water bath type vaporizer 303 for heating gas supply is arranged below the gas outlet root valve 302, so that low-temperature gas in the vehicle bottle 1 is heated through the water bath type vaporizer 303 to reach the gas supply temperature, and continuous gas supply to a fuel cell or an automobile engine is ensured.
Meanwhile, the bottom end of the gas outlet pipe 301 is connected with the gas inlet end of the water bath type vaporizer 303, the gas outlet end of the water bath type vaporizer 303 is connected with the buffer tank 6, and one end of the gas outlet pipe 301 and the liquid inlet vacuum pipe 202 share the same filling port 201.
Secondly, the pressure maintaining pipeline 4 comprises a self-pressurization pipeline 401, the self-pressurization pipeline 401 is connected inside the vehicle bottle 1 in a penetrating mode, an internal heat exchanger 402 used for exchanging heat with liquid in the vehicle bottle 1 is arranged on the self-pressurization pipeline 401, and the low-temperature liquid in the vehicle bottle 1 is heated and gasified through the internal heat exchanger 402, so that the pressure in the vehicle bottle 1 is increased, the self-pressurization function is achieved, meanwhile, cooled gas after exchanging heat with a liquid medium flows through the water bath type vaporizer 303 again to be heated, and the final temperature can meet the use requirement.
In addition, the both ends of self-pressurization pipeline 401 respectively with the inlet and outlet end case intercommunication of water bath vaporizer 303, be equipped with solenoid valve A403 on the self-pressurization pipeline 401, when filling port 201 fixed connection feed liquor vacuum tube 202, fixedly connected with blow-down pipe 7, be equipped with safety accessory 8 on the blow-down pipe 7, the inside of automobile-used bottle 6 is equipped with the level gauge 9 that is used for carrying out real-time supervision to liquid level and pressure, the exhaust end of inside heat exchanger 402 is equipped with stop valve 10, the below of stop valve 10 is equipped with cleaning valve 11, the below of cleaning valve 11 is equipped with solenoid valve B12, water bath vaporizer 303 is equipped with governing valve 5 with buffer tank 6's junction, setting through governing valve 5, make the air supply volume effectively adjusted, in order to avoid the inside liquid medium of automobile-used bottle to continuously heat up.
It should be noted that the length of each line may be set as needed.
When the device of the technical scheme is used, the gas pipeline 3 and the filling pipeline 2 share one filling port 201, and then the gas root valve 302 is opened, so that low-temperature gas in the vehicle bottle 1 is heated by the water bath type vaporizer 303 to reach a gas supply temperature, then flows through the buffer tank 6, and finally supplies gas to a fuel cell or an automobile engine;
when the internal pressure of the vehicle bottle 1 is lower than a set value, the electromagnetic valve A403 is automatically opened, hot gas flows through the vehicle bottle 1 through the self-pressurization pipeline 401, the internal heat exchanger 402 is arranged on the self-pressurization pipeline 401 in the vehicle bottle 1 to heat and gasify low-temperature liquid in the bottle, so that the internal pressure of the bottle is increased, the self-pressurization function is further realized, cooled gas after heat exchange with a liquid medium flows through the water bath type vaporizer 303 again to be heated again, circulation continuous heating is performed, when the internal pressure of the vehicle bottle 1 is higher than the set value, the electromagnetic valve A403 is automatically closed, the regulating valve 5 starts to be opened at the moment, the opening degree is controlled according to calculation, and the flow is regulated to supply gas.

Claims (8)

1. The utility model provides a novel gas supply system of automobile-used liquid hydrogen bottle and automobile-used bottle of LNG, this gas supply system includes automobile-used bottle (1), its characterized in that: be equipped with on the automobile-used bottle (1) and be used for filling pipeline (2), filling pipeline (2) are gone up the intercommunication and are equipped with gas line (3) that are used for the automobile body air feed, be equipped with pressure maintenance pipeline (4) that are used for maintaining pressure on the automobile-used bottle (1).
2. The novel gas supply system for the liquid hydrogen bottle and the LNG vehicle bottle as claimed in claim 1, wherein: filling pipeline (2) are including filling port (201), one side fixedly connected with feed liquor vacuum tube (202) of filling port (201), the one end and the automobile-used bottle (1) of feed liquor vacuum tube (202) are linked together, the other end of feed liquor vacuum tube (202) is equipped with and is used for preventing liquid hydrogen and LNG backward flow to get into filling port (201) or feed liquor check valve (203) in the automobile-used bottle (1).
3. The novel gas supply system for the liquid hydrogen bottle and the LNG vehicle bottle as claimed in claim 2, wherein: with trachea line (3) including outlet duct (301), the bottom fixed mounting of outlet duct (301) has and is used for control go out trachea line (3) switch with gas root valve (302), the below of with gas root valve (302) is equipped with water bath formula vaporizer (303) that are used for heating the air feed.
4. The novel gas supply system for the liquid hydrogen bottle and the LNG vehicle bottle as claimed in claim 3, wherein: the bottom of outlet duct (301) is connected with the inlet end of water bath vaporizer (303), the exhaust end of water bath vaporizer (303) is connected with buffer tank (6), the one end of outlet duct (301) with liquid inlet vacuum tube (202) share same filling mouth (201).
5. The novel gas supply system for the liquid hydrogen bottle and the LNG vehicle bottle as claimed in claim 4, wherein: the pressure maintaining pipeline (4) comprises a self-pressurization pipeline (401), the self-pressurization pipeline (401) is connected to the inside of the vehicle bottle (1) in a penetrating mode, and an internal heat exchanger (402) used for exchanging heat with liquid in the vehicle bottle (1) is arranged on the self-pressurization pipeline (401).
6. The novel gas supply system for the liquid hydrogen bottle and the LNG vehicle bottle as claimed in claim 5, wherein: two ends of the self-pressurization pipeline (401) are respectively communicated with an air inlet and outlet end box of the water bath type vaporizer (303), and the self-pressurization pipeline (401) is provided with an electromagnetic valve A (403).
7. The novel gas supply system for the liquid hydrogen bottle and the LNG vehicle bottle as claimed in claim 2, wherein: when filling port (201) fixed connection feed liquor vacuum tube (202), fixedly connected with blow-down pipe (7), be equipped with safety accessory (8) on blow-down pipe (7), the inside of automobile-used bottle (6) is equipped with and is used for carrying out real-time supervision's level gauge (9) to liquid level and pressure.
8. The novel gas supply system for the liquid hydrogen bottle and the LNG vehicle bottle as claimed in claim 5, wherein: the exhaust end of inside heat exchanger (402) is equipped with stop valve (10), the below of stop valve (10) is equipped with purge valve (11), the below of purge valve (11) is equipped with solenoid valve B (12), the junction of water bath vaporizer (303) and buffer tank (6) is equipped with governing valve (5).
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CN218720617U (en) * 2022-06-10 2023-03-24 山东奥扬新能源科技股份有限公司 Novel gas supply system of automobile-used liquid hydrogen bottle and automobile-used bottle of LNG

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CN201334967Y (en) * 2009-01-13 2009-10-28 新疆广汇液化天然气发展有限责任公司 Liquefied natural gas self-pressurization device
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