CN112283575A - Vehicle-mounted hydrogen supply system pipeline system - Google Patents

Vehicle-mounted hydrogen supply system pipeline system Download PDF

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Publication number
CN112283575A
CN112283575A CN201910671729.4A CN201910671729A CN112283575A CN 112283575 A CN112283575 A CN 112283575A CN 201910671729 A CN201910671729 A CN 201910671729A CN 112283575 A CN112283575 A CN 112283575A
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CN
China
Prior art keywords
valve
hydrogen
cylinder
vehicle
module
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Pending
Application number
CN201910671729.4A
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Chinese (zh)
Inventor
于文俊
王东雨
乐煜
刘绍军
刘强
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Shanghai Sunwise Energy System Co ltd
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Shanghai Sunwise Energy System Co ltd
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Priority to CN201910671729.4A priority Critical patent/CN112283575A/en
Publication of CN112283575A publication Critical patent/CN112283575A/en
Pending legal-status Critical Current

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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
    • F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • F17C5/06—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with compressed gases
    • 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
    • F17C13/002—Details of vessels or of the filling or discharging of vessels for vessels 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
    • 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
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
    • 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
    • F17C2201/03—Orientation
    • F17C2201/035—Orientation with substantially horizontal main axis
    • 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
    • F17C2201/056—Small (<1 m3)
    • 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
    • F17C2205/0323—Valves
    • 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
    • F17C2205/0323—Valves
    • F17C2205/0326—Valves electrically actuated
    • 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
    • F17C2205/0323—Valves
    • F17C2205/0329—Valves manually actuated
    • 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
    • F17C2205/0323—Valves
    • F17C2205/0332—Safety valves or pressure relief valves
    • 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
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • 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
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/035—High pressure (>10 bar)
    • 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
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
    • F17C2225/0107—Single phase
    • F17C2225/0123—Single phase gaseous, e.g. CNG, GNC
    • 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
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/03—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the pressure level
    • F17C2225/035—High pressure, i.e. between 10 and 80 bars
    • 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
    • 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
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/01—Purifying the fluid
    • F17C2265/012—Purifying the fluid by filtering
    • 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
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/06—Fluid distribution
    • F17C2265/061—Fluid distribution for supply of supplying vehicles
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/32—Hydrogen storage

Abstract

The invention relates to a pipeline system of a vehicle-mounted hydrogen supply system, which comprises a hydrogen filling module, a hydrogen storage module and a hydrogen supply module, wherein the hydrogen filling module is connected to the hydrogen storage module through a hydrogen pipeline; the cylinder valve component comprises a cylinder valve arranged at the bottle mouth of the hydrogen storage bottle, and a first one-way valve, a stop valve and an overflow valve which are integrated on the cylinder valve and are sequentially connected in series between the cylinder valve and the bottle mouth of the hydrogen storage bottle, wherein the first one-way valve is connected with an electromagnetic valve in parallel; the cylinder valve is provided with an air inlet and an air outlet, so that the serial connection of a plurality of hydrogen storage cylinders is realized. Compared with the prior art, the method has the advantages of safety, reliability, simple flow, low cost, few leakage points and the like.

Description

Vehicle-mounted hydrogen supply system pipeline system
Technical Field
The invention relates to the field of structure optimization of vehicle-mounted hydrogen supply systems, in particular to a pipeline system of a vehicle-mounted hydrogen supply system.
Background
With the guidance and implementation of a series of national new energy policies, hydrogen fuel cell vehicles have recently entered a rapid development stage, and the design of pipelines of a vehicle-mounted hydrogen supply system serving as a hydrogen storage and supply system of the hydrogen fuel cell vehicle is one of the keys for ensuring the safe and reliable running of the hydrogen fuel vehicle. Considering that hydrogen is very small in size and easy to leak, each connecting point of a pipeline on the vehicle-mounted hydrogen supply system, whether in clamping sleeve connection or in threaded connection, has the hidden danger of leakage, particularly, a part of high-pressure pipelines are limited by arrangement environment and possibly have installation stress, and the connecting points of the pipeline and a valve element are easy to leak under the long-term running vibration of a vehicle, so that the pipeline connecting points are reduced as much as possible, the pipeline is simplified, and the safety performance of the vehicle-mounted hydrogen supply system is further improved; meanwhile, the existing vehicle-mounted hydrogen supply system also generally has the problems of high production cost, complex pipeline flow and the like.
Chinese patent CN208703568U discloses a series connection's on-vehicle hydrogen supply system, relates to on-vehicle hydrogen supply system configuration optimization field, including hydrogen bottle group, hydrogenation mouth, hydrogen supply device, connecting line and fixed frame, the bottleneck valve is installed to the hydrogen bottle bottleneck, is provided with air inlet and gas outlet on the bottleneck valve, realizes the series connection of a plurality of hydrogen bottles. However, the valve assembly for controlling the hydrogen flow in cooperation with the cylinder valve in the patent needs to be additionally installed, so that connection points are increased, more leakage points possibly exist, and the installation cost is increased; in addition, only one of the two outlets of the cylinder valve of the device is provided with the overflow valve, and the pipeline of the other outlet cannot play an effective overflow role when the pipeline is broken under an extreme condition, so that certain potential safety hazards are generated.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a pipeline system of a vehicle-mounted hydrogen supply system.
The purpose of the invention can be realized by the following technical scheme:
a pipeline system of a vehicle-mounted hydrogen supply system comprises a hydrogen filling module, a hydrogen storage module and a hydrogen supply module, wherein the hydrogen filling module is connected to the hydrogen storage module through a hydrogen pipeline; the cylinder valve component comprises a cylinder valve arranged at the bottle mouth of the hydrogen storage bottle, and an overflow valve, a stop valve and a first one-way valve which are integrated on the cylinder valve and are sequentially connected in series between the cylinder valve and the bottle mouth of the hydrogen storage bottle, wherein the first one-way valve is connected with an electromagnetic valve in parallel; and the cylinder valve is provided with an air inlet and an air outlet, so that the serial connection of a plurality of hydrogen storage modules is realized.
Compared with the common vehicle-mounted hydrogen supply system with a large number of three-way valves on the pipeline, and the more the number of gas cylinders of the vehicle-mounted hydrogen supply system, the more the number of the three-way valves, the pipeline in the system pipeline arrangement scheme of the invention directly connects all the valve parts in series, hydrogen flows from the hydrogen gas filling nozzle to the battery reactor through the one-way valve, the first cylinder valve, the second cylinder valve, the third cylinder valve, the filter and the first-level pressure reducing valve in sequence, and no three-way or multi-way flow exists in the whole hydrogen gas flow path, on one hand, the possible leakage connection points of the pipeline are reduced to the maximum extent, the safety of the vehicle-mounted hydrogen supply system is improved, on the other hand, the pipeline is simplified and the valve parts are reduced on the premise that the functionality and the safety of the, such as a pressure gauge, a filter of a filling module and the like, and is convenient for pipeline manufacturing and installation and cost control.
A first overtemperature safety valve is further integrated on the cylinder valve of the cylinder valve component; and the tail valve of the hydrogen storage bottle is connected with a second over-temperature safety valve.
And the emptying ports of the first overtemperature safety valve and the second overtemperature safety valve are both connected with a discharge protector.
And a pressure sensor interface is arranged on a cylinder valve of the cylinder valve component directly connected with the hydrogen filling module and is connected with a high-pressure sensor.
In the hydrogen storage module, two hydrogen inlet and outlet interfaces and a pressure sensor interface are arranged on a cylinder valve, and valves such as a check valve, a stop valve, an electromagnetic valve, an overflow valve, a temperature sensor and a TPRD (thermal safety valve) are integrated; because the overflow valve is integrated into the cylinder valve, the pipeline arrangement scheme can fully utilize two interfaces of the cylinder valve to replace a tee joint, so that the series connection between the cylinder valves is realized; TPRD (over-temperature safety valve) is respectively designed at the bottle mouth and the tail valve of the hydrogen storage bottle, and the vent hole of the TPRD is connected by adopting a discharge protector, so that a vent pipeline system is greatly simplified, and the difficulty in manufacturing and installing pipelines and the material cost are reduced.
The hydrogen filling module comprises a gas filling nozzle fixed on the filling panel and a one-way valve connected with the gas filling nozzle in series.
The hydrogen filling module can efficiently and stably fill the gas cylinder, and a filling nozzle is fixed on a filling panel in the filling module to ensure the operation stability during filling; the back end of the gas adding nozzle is provided with a one-way valve, which plays the role of preventing the gas in the hydrogen storage bottle from leaking outwards when the gas adding nozzle is damaged and improving the service life of the gas adding nozzle.
The hydrogen supply module comprises a filter connected with the hydrogen storage module, and a primary pressure reducing valve assembly connected with the filter in series, wherein the primary pressure reducing valve assembly is connected with the fuel cell through a metal hose.
The first-stage pressure reducing valve assembly comprises a pressure reducing valve, a first outlet and a second outlet are arranged on the pressure reducing valve, the first outlet is connected with the manual discharge valve, and the second outlet is connected with the metal hose.
An unloading valve is integrated in the pressure reducing valve, and an outlet of the unloading valve is connected with a discharge protector; the pressure reducing valve is integrated with a pressure sensor interface, and the pressure sensor interface is connected with a medium pressure sensor.
In the hydrogen supply module, the primary pressure reducing valve is provided with two outlets, so that the number of tee joints and adapters in a pipeline can be further reduced, and possible leakage points are reduced; the primary pressure reducing valve integrates functions of an unloading valve, a pressure sensor interface and the like, so that a tee joint for installing a valve is prevented from being formed on a pipeline; the filter is arranged in front of the pressure reducing valve, so that the pressure reducing valve and parts at the rear end of the pressure reducing valve can be effectively prevented from being polluted by impurities, and the purity of hydrogen of the feed pile is ensured. An outlet behind the pressure reducing valve is connected with an emptying hand valve for emptying the pipeline during maintenance, and the hand valve needs a special matching wrench when being screwed, so that the hand valve can be prevented from being unscrewed by misoperation of other people. Another outlet behind the pressure reducing valve is directly connected with the galvanic pile, and the last section adopts metal hose for transition, so that the shock resistance of a pipeline system is improved, and the installation of the pipeline is also facilitated.
A bend is arranged on the serial pipeline arranged among the hydrogen storage bottles. The pipeline between the cylinder valves is bent, and the anti-seismic performance of the cylinder valves is improved.
The vehicle-mounted hydrogen supply system pipeline system is arranged in an environment which keeps air flow circulation with the outside. Because the system of the invention is provided with the hydrogen gas discharge port, the system of the invention is suitable for the condition that the vehicle-mounted hydrogen supply system is in an open environment which can keep gas circulation with the outside all the time, such as the vehicle-mounted hydrogen supply system is arranged on the top of the carriage of an automobile.
Compared with the prior art, the invention has the following advantages:
(1) the pipeline flow in the pipeline arrangement scheme of the vehicle-mounted hydrogen supply system is concise and clear, a tee joint or a multi-way joint does not exist, the hydrogen supply pipeline and the emptying pipeline are simplified to the maximum extent, the safety performance of the fuel cell vehicle is further improved on the basis of effectively ensuring the hydrogen supply requirement of the fuel cell vehicle under various working conditions, the production cost is reduced, the pipeline installation and production are more convenient, and the vehicle-mounted hydrogen supply system is suitable for most fuel cell vehicles;
(2) the system is provided with a one-way valve, a stop valve, an electromagnetic valve, an overflow valve and other components to form a hydrogen storage and supply control system, so that high-efficiency and safe supply of hydrogen is realized, the hydrogen flow is easy to control, and the safety of the system is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
in the figure, 1 is a hydrogen filling module, 11 is a filling nozzle, 12 is a second one-way valve, 2 is a hydrogen storage module, 21 is a hydrogen storage bottle, 22 is a bottle valve assembly, 221 is a high-pressure sensor, 222 is a first one-way valve, 223 is a stop valve, 224 is an overflow valve, 225 is an electromagnetic valve, 226 is a first over-temperature safety valve, 23 is a second over-temperature safety valve, 24 is a first discharge protector, 25 is a second discharge protector, 3 is a hydrogen supply module, 31 is a filter, 32 is a primary pressure reducing valve assembly, 321 is a pressure reducing valve, 322 is a medium-pressure sensor, 323 is an unloading valve, 33 is a manual discharge valve, 34 is a third discharge protector, 35 is a metal hose, N1 is a hydrogen inlet, N2 is a vent, and N3 is a fuel removal battery port.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the invention. All falling within the scope of the present invention.
Examples
A pipeline system of a vehicle-mounted hydrogen supply system, as shown in fig. 1, includes a hydrogen filling module 1, a hydrogen storage module 2, and a hydrogen supply module 3, wherein the hydrogen filling module 1 is connected to the hydrogen storage module 2 through a hydrogen pipeline, the hydrogen storage module 2 is connected to the hydrogen supply module 3 through a hydrogen pipeline, and the hydrogen supply module 3 is connected to a fuel cell.
The hydrogen filling module 1 comprises a filling nozzle 11 fixed on the filling panel and a second one-way valve 12 connected with the filling nozzle 11 in series, the filling nozzle 11 is connected with a hydrogen inlet N1, and the filling nozzle 11 is fixed on the filling panel to ensure the operation stability during filling; the rear end of the gas adding nozzle 11 is provided with a second one-way valve 12, so that the effects of preventing gas from leaking outwards and prolonging the service life of the gas receiving head under the condition that the gas adding nozzle is damaged are achieved, and the hydrogen filling module 1 in the embodiment can fill the gas cylinder efficiently and stably.
The hydrogen storage module 2 comprises a hydrogen storage bottle 21 and a bottle valve assembly 22; as shown in the structure of the broken line frame in fig. 1, the cylinder valve assembly 22 comprises a cylinder valve mounted at the mouth of the hydrogen storage cylinder 21, and a first check valve 222, a stop valve 223 and an overflow valve 224 which are integrated on the cylinder valve and connected in series in sequence between the cylinder valve and the mouth of the hydrogen storage cylinder 21, wherein the first check valve 222 is connected with an electromagnetic valve 225 in parallel; the cylinder valve is also integrated with a first over-temperature safety valve 226(TPRD), and the first over-temperature safety valve 226(TPRD) is connected with the opening of the hydrogen storage cylinder 21; the tail valve of the hydrogen storage bottle 21 is connected with a second over-temperature safety valve 23 (TPRD); the vents of the first over-temperature safety valve 226(TPRD) and the second over-temperature safety valve 23(TPRD) are respectively connected with a first discharge protector 24 and a second discharge protector 25; the cylinder valve of this embodiment is provided with an air inlet and an air outlet, and realizes the series connection of a plurality of hydrogen storage modules 2. The cylinder valve of the cylinder valve assembly 22 directly connected to the hydrogen filling module 1 is provided with a pressure sensor port, and the pressure sensor port is connected to the high-pressure sensor 221.
In the hydrogen storage module 2, the cylinder valve integrates valves such as a check valve, a stop valve, an electromagnetic valve, an overflow valve, a temperature sensor, a TPRD (thermal Plastic deformation detector) overtemperature safety valve and the like, and is provided with two hydrogen inlet and outlet interfaces and a pressure sensor interface. Because the cylinder valve also integrates the overflow valve, the pipeline arrangement scheme can make full use of two interfaces of the cylinder valve, so that the cylinder valve can replace a tee joint, and the series connection between the cylinder valves is realized. The TPRD unloading mouth of cylinder valve and gas cylinder tail valve all adopts the emission protector to connect in this pipeline arrangement scheme, has simplified the evacuation pipe-line system greatly, has reduced the pipeline preparation installation degree of difficulty and material cost, but this scheme is only applicable to on-vehicle hydrogen supply system and is in the condition in the open environment that can keep the gas circulation with the external world always, if with on-vehicle hydrogen supply system installation at the carriage top of car.
The hydrogen supply module 3 comprises a filter 31 connected with the hydrogen storage module 2, a primary pressure reducing valve assembly 32 connected in series with the filter 31, the primary pressure reducing valve assembly 32 being connected with the fuel cell by a metal hose 35; the primary pressure reducing valve assembly 32 comprises a pressure reducing valve 321, a first outlet and a second outlet are arranged on the pressure reducing valve 321, the first outlet is connected with the manual discharge valve 33, the outlet of the manual discharge valve 33 is a vent N2, and the second outlet is connected with the metal hose 35; an unloading valve 323 is integrated in the pressure reducing valve 321, and an outlet of the unloading valve 323 is connected with a discharge protector; the pressure reducing valve 321 has a pressure sensor connection integrated thereon, which is connected to a medium-pressure sensor 322.
In the hydrogen supply module 3, a pressure reducing valve in the primary pressure reducing valve component integrates functions of an unloading valve, a pressure sensor interface and the like, and is provided with two outlets, so that the number of tee joints and adapters in a pipeline can be further reduced, and possible leakage points are reduced; the filter is arranged in front of the pressure reducing valve, so that the pressure reducing valve and parts at the rear end of the pressure reducing valve can be effectively prevented from being polluted by impurities, and the purity of hydrogen of the feed pile is ensured. An outlet behind the pressure reducing valve is connected with an emptying hand valve for emptying the pipeline during maintenance, and the hand valve needs a special matching wrench when being screwed, so that the hand valve can be prevented from being unscrewed by misoperation of other people. The fuel cell removing port N3 after the pressure reducing valve is directly connected with the fuel cell stack, and the last section is transited by adopting the metal hose 35, so that the shock resistance of a pipeline system is improved, and the pipeline is convenient to install.
In this embodiment, the serial pipes between the hydrogen storage bottles 21 are bent to improve the shock resistance.
The integrated cylinder valve and pressure reducing valve of the present invention are commercially available, for example, the cylinder valve is exemplified by the HTV-35 series cylinder valve of OMB, Italy, and the pressure reducing valve is exemplified by the M-H35 series pressure reducing valve of Metatron, Italy.
Compared with the system in the chinese patent CN208703568U, the system in this embodiment needs to have a built-in overflow valve in the cylinder valve, and compared with the GFI cylinder valve without an integrated overflow valve in CN208703568U in the prior art, and after the cylinder valves in the prior art are connected in series, two outlets of each cylinder valve are all connected to a hydrogen pipeline, but the overflow valve is only installed at one of the outlets, and the overflow valve is not installed at the other outlet, so that if the pipeline of the other outlet without the overflow valve is broken, the uncontrolled release of hydrogen cannot be effectively prevented, which causes a safety hazard. In the prior art, three-way joints of an overflow valve, an unloading valve and a tandem emptying needle valve are additionally arranged, so that connecting points are increased, the production cost is also increased, transition adapters exist for the connection of a pressure reducing valve with the unloading valve and a medium-pressure sensor, and leakage points are increased; in the system of the embodiment, the mode of integrating a plurality of functional parts on one valve element as much as possible is adopted to reduce the connection point and the installation workload, the system comprises a built-in overflow valve of a cylinder valve and a built-in unloading valve of a pressure reducing valve, and two outlets and a medium-pressure sensor interface are also provided, wherein one outlet is connected with a pile, and the other outlet is connected with an air release valve. According to the system, on the premise of ensuring the functionality and safety requirements of the vehicle-mounted hydrogen supply system, some unnecessary valves, such as a pressure gauge, a filter of a filling module and the like, are reduced, and leakage points and production cost are further reduced; the emptying of the emptying port of the cylinder valve, the tail valve and the unloading valve in the system of the embodiment adopts a discharge protector form, so that the emptying pipeline is greatly simplified, the cost is reduced, the installation workload is reduced, the emptying hand valve can be operated by a special wrench, the misoperation of personnel is avoided, and the safety is improved.
The pipeline flow in the pipeline arrangement scheme of the vehicle-mounted hydrogen supply system is simple and clear, a tee joint or a multi-way joint does not exist, the hydrogen supply pipeline and the emptying pipeline are simplified to the maximum extent, the safety performance of the fuel cell vehicle is further improved on the basis of effectively ensuring the hydrogen supply requirement of the fuel cell vehicle under various working conditions, the production cost is reduced, the pipeline installation and production are more convenient, and the vehicle-mounted hydrogen supply system is suitable for most fuel cell vehicles. In short, the system of the embodiment has the advantages of less electric leakage, less installation workload, low cost, high safety and the like.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention.

Claims (10)

1. A vehicle-mounted hydrogen supply system pipeline system comprises a hydrogen filling module (1), a hydrogen storage module (2) and a hydrogen supply module (3), wherein the hydrogen filling module (1) is connected to the hydrogen storage module (2) through a hydrogen pipeline, the hydrogen storage module (2) is connected to the hydrogen supply module (3) through a hydrogen pipeline, the hydrogen supply module (3) is connected to a fuel cell, and the hydrogen storage module (2) comprises a hydrogen storage bottle (21) and a bottle valve component (22);
it is characterized in that the preparation method is characterized in that,
the cylinder valve assembly (22) comprises a cylinder valve arranged at the mouth of the hydrogen storage cylinder (21), and a first one-way valve (222), a stop valve (223) and an overflow valve (224) which are integrated on the cylinder valve and are sequentially connected in series between the cylinder valve and the mouth of the hydrogen storage cylinder (21), wherein the first one-way valve (222) is connected with an electromagnetic valve (225) in parallel; the cylinder valve is provided with an air inlet and an air outlet, so that the hydrogen storage modules (2) are connected in series.
2. A vehicle hydrogen supply system pipe system according to claim 1, wherein the cylinder valve of the cylinder valve assembly (22) is further integrated with a first over-temperature safety valve (226), and the tail valve of the hydrogen storage cylinder (21) is connected with a second over-temperature safety valve (23).
3. A vehicle hydrogen supply system piping system according to claim 2, characterized in that the vent of the first overtemperature protection valve (226) and the second overtemperature protection valve (23) are connected with a discharge protector.
4. The on-vehicle hydrogen supply system piping system according to claim 1, characterized in that a pressure sensor port is provided on a cylinder valve of a cylinder valve assembly (22) directly connected to the hydrogen filling module (1), and the pressure sensor port is connected to a high pressure sensor (221).
5. A vehicle-mounted hydrogen supply system pipeline system according to claim 1, wherein the hydrogen filling module (1) comprises a filling nozzle (11) fixed on a filling panel, and a second one-way valve (12) connected in series with the filling nozzle (11).
6. A vehicle hydrogen supply system piping system according to claim 1, wherein the hydrogen gas supply module (3) comprises a filter (31) connected to the hydrogen gas storage module (2), a primary pressure reducing valve assembly (32) connected in series with the filter (31), the primary pressure reducing valve assembly (32) being connected to the fuel cell by a metal hose (35).
7. A vehicle hydrogen supply system pipe system according to claim 6, wherein the primary pressure reducing valve assembly (32) comprises a pressure reducing valve (321), the pressure reducing valve (321) is provided with a first outlet and a second outlet, the first outlet is connected with a manual drain valve (33), and the second outlet is connected with the metal hose (35).
8. A vehicle-mounted hydrogen supply system pipeline system according to claim 7, characterized in that an unloading valve (323) is integrated in the pressure reducing valve (321), and an outlet of the unloading valve (323) is connected with a discharge protector; the pressure reducing valve (321) is integrated with a pressure sensor interface, and the pressure sensor interface is connected with a medium pressure sensor (322).
9. A vehicle-mounted hydrogen supply system pipeline system according to claim 1, wherein a bend is provided on a serial pipeline between the hydrogen storage bottles (21).
10. The on-board hydrogen supply system piping system according to claim 1, wherein the on-board hydrogen supply system piping system is installed in an environment in air flow communication with the outside.
CN201910671729.4A 2019-07-24 2019-07-24 Vehicle-mounted hydrogen supply system pipeline system Pending CN112283575A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113028278A (en) * 2021-03-31 2021-06-25 黄冈格罗夫氢能汽车有限公司 Hydrogen energy light truck high-pressure hydrogen storage system
CN113113638A (en) * 2021-03-31 2021-07-13 东风汽车集团股份有限公司 High-pressure hydrogen supply system of fuel cell automobile

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113028278A (en) * 2021-03-31 2021-06-25 黄冈格罗夫氢能汽车有限公司 Hydrogen energy light truck high-pressure hydrogen storage system
CN113113638A (en) * 2021-03-31 2021-07-13 东风汽车集团股份有限公司 High-pressure hydrogen supply system of fuel cell automobile
CN113113638B (en) * 2021-03-31 2022-08-19 东风汽车集团股份有限公司 High-pressure hydrogen supply system of fuel cell automobile

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