CN117823302A - Air rail assembly integrating one-way valve and filter - Google Patents

Air rail assembly integrating one-way valve and filter Download PDF

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Publication number
CN117823302A
CN117823302A CN202311234376.4A CN202311234376A CN117823302A CN 117823302 A CN117823302 A CN 117823302A CN 202311234376 A CN202311234376 A CN 202311234376A CN 117823302 A CN117823302 A CN 117823302A
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CN
China
Prior art keywords
air rail
filter element
hydrogen
filter
hydrogen storage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202311234376.4A
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Chinese (zh)
Inventor
毛国豪
黄志伟
华磊
孟德弟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Usui Engine Parts Co ltd
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Shanghai Usui Engine Parts Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Usui Engine Parts Co ltd filed Critical Shanghai Usui Engine Parts Co ltd
Priority to CN202311234376.4A priority Critical patent/CN117823302A/en
Publication of CN117823302A publication Critical patent/CN117823302A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02M21/0245—High pressure fuel supply systems; Rails; Pumps; Arrangement of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0203—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels characterised by the type of gaseous fuel
    • F02M21/0206—Non-hydrocarbon fuels, e.g. hydrogen, ammonia or carbon monoxide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02M21/0227—Means to treat or clean gaseous fuels or fuel systems, e.g. removal of tar, cracking, reforming or enriching
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02M21/023—Valves; Pressure or flow regulators in the fuel supply or return system

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

The invention relates to an air rail assembly integrating a one-way valve and a filter, which mainly comprises an air rail main body and a sealing element; the inlet end connector is connected with the air rail main body through threads, and a sealing cavity for wrapping the first filter element is formed, and the first filter element maintains the relative stability of the position of the first filter element and the sealing of the first filter element and the inner cavity of the air rail main body under the compression action of the first spring; the sealing element is assembled in the clamping groove of the lifting head, and under the action of the third spring and air pressure, the sealing element and the stop block are opened and closed. The inlet end of the hydrogen filter has the functions of filtering and a single valve, so that the hydrogen can be filtered, and the hydrogen can be prevented from flowing reversely; the outlet end also has a filtering function so as to prevent the pipeline and the hydrogen storage bottle in the hydrogen storage system from polluting hydrogen; the method is applicable to the gas conveying field of the vehicle-mounted hydrogen supply system of 20MPa and above for the motor vehicle.

Description

Air rail assembly integrating one-way valve and filter
Technical Field
The application relates to the field of valves, filtration and gas distributors, in particular to a gas rail assembly of an integrated one-way valve and a filter for a vehicle-mounted high-pressure hydrogen supply system.
Background
Both fuel cell vehicles and hydrogen-burning engine vehicles are hydrogen energy vehicles. The hydrogen is clean, only generates water in the energy conversion process, has wide sources, can be obtained by purifying and separating industrial byproduct gas, and can also be obtained by utilizing solar energy and water energy to electrolyze water.
Hydrogen is the smallest molecule in volume in all gases, and has good diffusivity. Once the hydrogen molecules leak, they accumulate in a small space, and if the explosion limit interval of 4.0 to 74.2% is reached, it is very dangerous.
The vehicle-mounted hydrogen storage system comprises a hydrogenation port, a filter, a one-way valve, a hydrogen storage bottle, a bottle valve, an air rail, a pipeline and the like, different components are connected through the pipeline generally, a plurality of components are connected together, the number of connecting ports is large, and the risk of hydrogen leakage is greatly increased. And occupies larger volume and weight, and increases purchasing cost.
In order to solve the problems, the application relates to an air rail assembly integrating a one-way valve and a filter, wherein functions of the one-way valve, the filter and the air rail are integrated on one component. The sealing device is small in size, light in weight and good in sealing performance.
Disclosure of Invention
The invention aims to solve the problems of scattered functions and low integration level of the components of the existing gas storage system and provides a gas rail assembly integrating a one-way valve and a filter.
The invention aims at realizing the following technical scheme:
the design thought of this application is: the principle of integrating small parts into large parts is followed, and the parts with smaller volumes of the filter and the one-way valve are integrated on the air rail; the inlet end and the outlet end are respectively provided with a filter element (specifically a first filter element and a second filter element) which are used for filtering impurities in the air source and the hydrogen storage system respectively. The check valve is arranged at the rear end of the first filter element (4) at the inlet end, so that the check valve sealing piece is not polluted by air source impurities, the position of the first filter element (4) is prevented from moving due to back blowing of air, the filter element uniformly acts on air flow, and the stress of the check valve lifting head (16) is uniform.
The air rail assembly integrating the one-way valve and the filter is characterized by comprising an air rail main body, an inlet end connector, a first spring, a first filter element, an outlet end connector, a second spring, a second filter element (6), a one-way valve stop block, a lifting head, a sealing piece and a third spring; the air rail is integrated with functions of a filter and a one-way valve at an inlet end respectively; integrating the function of a filter at the outlet end;
the inlet end connector is connected with the air rail main body through threads, and a sealing cavity for wrapping the first filter element is formed, and the first filter element maintains the relative stability of the position of the first filter element and the sealing of the first filter element and the inner cavity of the air rail main body under the compression action of the first spring;
the check valve stop block is connected with the air rail main body through threads and screwed to a fixed position, one end of the third spring is propped against the inner hole platform of the air rail main body, and the other end of the third spring is propped against the rear end of the lifting head;
the sealing element is assembled in the clamping groove of the lifting head, and under the action of the third spring and air pressure, the unidirectional circulation of air is realized through the opening and closing between the sealing element and the stop block; after the gas enters the gas rail, hydrogen is stored in the hydrogen storage bottle through the shunting effect of the gas rail;
the outlet end connector is connected with the air rail main body through threads, and a sealing cavity for wrapping the second filter element is formed, and the second filter element maintains the relative stability of the position of the second filter element and the sealing of the outlet end connector under the compression action of the second spring.
The sealing mode of the inlet end joint and the air rail main body is conical surface sealing;
the sealing mode of the outlet end joint and the air rail main body is conical surface sealing;
the gas rail main body is a forged piece, and fig. 6 is a forged blank diagram thereof, which is in a branch bud shape, wherein all branch bud parts are connected as main pipes, branch bud parts are branch pipes, the main pipes are perpendicular to the branch pipes, and the number of the branch pipes is not limited.
The circulation of the hydrogen has directivity (figure 3), the gas can only flow in from the inlet end to the outlet end, and flows out from the outlet end, the hydrogen at the first communicated hydrogen storage bottle pipeline position, the hydrogen at the third communicated hydrogen storage bottle pipeline position can flow bidirectionally, namely, the hydrogen flows out from the gas rail to be stored in the hydrogen storage bottle when the hydrogen is charged, and the hydrogen flows back to the gas rail from the hydrogen storage bottle when the hydrogen is used.
The air rail main body is provided with an interface connected with the sensor.
The inlet end connector, the outlet end connector and the first communicated hydrogen storage bottle pipeline position, the second communicated hydrogen storage bottle pipeline position and the third communicated hydrogen storage bottle pipeline position are provided with conical surface characteristics, and the conical surface angle is preferably 60 degrees.
The inlet end, the outlet end, the first intercommunication hydrogen storage bottle pipeline position, the second intercommunication hydrogen storage bottle pipeline position, the third intercommunication hydrogen storage bottle pipeline position, the pressure sensor end is responsible for, the position of selecting on the branch pipe is unrestricted, the preferred, the outlet end of hydrogen, the inlet end is at the both ends of being responsible for, the first intercommunication hydrogen storage bottle pipeline position, the second intercommunication hydrogen storage bottle pipeline position, third intercommunication hydrogen storage bottle pipeline position and pressure sensor end setting are on the branch pipe.
Should the mounting hole in the gas rail main part, through the connection of mounting hole and hydrogen storage system frame, this application gas rail assembly stability stronger.
The air rail assembly has two filtering functions; the cavity of parcel first filter core and second filter core is by the entry end joint, and the exit end joint forms through conical surface seal with the air rail main part respectively. The contact position of the first filter element and the air rail main body is sealed under the pressure action of the first spring, so that all hydrogen entering the air rail flows through the first filter element main body to achieve the filtering purpose. The contact position of the second filter element and the outlet end connector forms a seal under the pressure action of the second spring, so that all hydrogen flowing out of the gas rail flows through the second filter element base body to achieve the filtering purpose.
The first filter element and the second filter element are cup-shaped, are made of metal, and are preferably made of SUS316L.
The lifting head of the air rail assembly can slide under the action of the third spring and air pressure, when hydrogen is charged, the hydrogen enters from the inlet end joint and reaches the position of the check valve stop block through the first filter element, when the charging pressure reaches a certain value, the thrust of the charging pressure to the lifting head is larger than the sum of the pressure of the spring to the lifting head and the pressure of the air pressure at the back of the lifting head to the lifting head, the lifting head is lifted, a circulation channel is formed between the sealing element and the check valve stop block, and the hydrogen flows in. When the hydrogen charging is finished, the pressure of the position of the check valve baffle block is reduced, the lifting head approaches the check valve baffle block under the comprehensive action of the pressure of the third spring to the lifting head and the pressure of the air pressure of the back of the lifting head to the lifting head, the circulation channel is closed, and the hydrogen cannot reversely flow.
The check valve stop has an internal hexagonal and internal conical surface structure (fig. 8), and the check valve stop needs to be screwed to the plane position of the air rail internal groove and forms a seal.
The sealing element is assembled in the groove of the lifting head (figure 7), and the assembly and the inner cone of the check valve baffle block form a valve port for opening and closing the check valve.
The two ends of the first spring, the second spring and the third spring are required to be ground flat so as to ensure the uniformity of stress.
The lifting head can slide.
The number of check valves or filters is not limited, and preferably, there are 1 check valve function and 2 filter functions.
Compared with the prior art, the technical advantage of this application lies in:
1) The integration level is high, the connection point with a pipeline is reduced, and the leakage risk is reduced;
2) The volume is small, and the weight is light;
3) The integration level of the whole hydrogen storage system is increased, and the pipeline layout is more convenient;
4) The functions are integrated, the purchasing period is shortened, and the purchasing cost is reduced.
From the angle of hydrogen storage system, after integrated check valve of gas rail, filter, sensor interface, whole hydrogen storage system will be by hydrogenation mouth, hydrogen storage bottle and bottle valve, integrated gas rail, four major components of relief pressure valve to by the pipe connection, spare part quantity reduces greatly, and whole hydrogen storage system is more modularization, intensification.
Drawings
FIG. 1 is a cross-sectional view of an air rail assembly of the present application;
FIG. 2 is a partial enlarged view of the inlet end of the air rail assembly of the present application;
FIG. 3 is a front view of the air rail assembly of the present application;
FIG. 4 is an exterior view of the air rail assembly of the present application;
FIG. 5 is an exploded view of the air rail assembly of the present application;
FIG. 6 is an external view of a blank forging of the air rail body;
FIG. 7 is a schematic view of the assembly of the poppet with the seal;
FIG. 8 is an enlarged cross-sectional view of the check valve stop;
FIG. 9 is a cross-sectional view of the present application;
description of the reference numerals
1: the main body of the air rail,
2: an inlet end connector, a connecting piece of the inlet end,
3: the first spring is arranged on the first side of the first frame,
4: the first filter element is provided with a first filter element,
5: an outlet end joint, a connecting piece and a connecting piece,
6: a second filter element is arranged on the inner side of the first filter element,
7: the second spring is arranged on the upper surface of the first spring,
8: the inlet end is connected with the position of the pipeline,
9: the outlet end is connected with the position of the pipeline,
10: the position of the connecting sensor is sealed with the conical surface,
11: the mounting holes are arranged on the inner side of the mounting holes,
12: the first communicated hydrogen storage bottle pipeline is positioned,
13: the second is communicated with the pipeline position of the hydrogen storage bottle,
14: the third is communicated with the pipeline position of the hydrogen storage bottle,
15: a check block of the one-way valve,
16: the lifting head is provided with a lifting head,
17: the sealing member is provided with a seal groove,
18: and a third spring.
Detailed Description
The invention is analyzed in connection with the following examples.
The present invention is embodied in many ways, and is analyzed here by way of example with respect to the location of the doorway and the combination of functions.
Example 1
Please refer to fig. 1, 2, 3, 4, 5, 6, 8
FIG. 1 is a cross-sectional view of the present invention, wherein an inlet and an outlet are respectively provided at both ends of an air rail main body (1), and a branch pipe is used as an interface for connecting a hydrogen storage bottle and a sensor. FIG. 6 is a blank of a forging prior to machining of an air rail body having a main tube with four vertical legs in the same plane.
Further, fig. 2 is an enlarged view of a part of the inlet end of the present invention, and a sealed cavity is formed by sealing the inlet end fitting (2) with the tapered surface of the air rail body (1). The first filter element (4) is arranged in the sealing cavity, the sealing is formed by the pressure of the first spring (3) and the inner cavity contact line of the air rail main body (1), the check valve stop block (15) is connected with the air rail main body (1) through threads and forms sealing on the contact end face below the filter element, the lifting head (16) slides under the action of air pressure at two sides of the lifting head and the third spring (18), the sealing element (17) is driven, the opening and closing between the lifting head (16) and the check valve stop block (15) are realized, and the purpose of unidirectional flow of hydrogen is realized.
Further, the outlet end joint (5) and the conical surface of the air rail main body (1) are sealed to form a sealed cavity. The second filter element (6) is arranged in the sealed cavity, the sealing is formed by the pressure of the second spring (7) and the contact line of the inner cavity of the outlet end connector (5), and all the flowing hydrogen must flow through the substrate of the second filter element (6), so that the filtering purpose is realized, and the filtering precision is preferably 10 microns.
Further, fig. 3 is a front view of the present application and the hydrogen flow directions of different ports, and as described above, the two ends of the main pipe are respectively provided with an inlet and an outlet. The inlet is used in hydrogenation, hydrogen can only enter, the outlet is used in downstream when hydrogen is needed, and hydrogen can only flow out. The branch pipe is provided with ports connected with the hydrogen storage bottles, hydrogen can flow in and out, hydrogen is distributed to each hydrogen storage bottle through the gas rail during hydrogenation, and hydrogen is converged to the gas rail through the ports connected with each hydrogen storage bottle during hydrogen use and flows out from the outlet. Sensor locations are also provided on the manifold.
Furthermore, the gas rail assembly and the external hydrogen transmission pipeline adopt a conical surface sealing mode, and the corresponding interface positions of the gas rail assembly have conical surface characteristics, preferably, the conical surface angle is 60 degrees.
Fig. 4 is an external view of the present application.
Fig. 5 is an exploded view of the present application.
Furthermore, the two ends of the first spring (3), the second spring (6) and the third spring (18) need to be ground flat.
Further, the check valve stop (15) has an internal hexagonal feature, external threads M10.
Further, the first filter element (4) and the second filter element (6) are made of metal, preferably SUS316L.
Further, the sealing member (17) is made of a polymer material, preferably PTFE.
Example 2
Please refer to fig. 9, 2 and 8
Fig. 9 is a sectional view of the present invention, in which inlet and sensor ports are provided at both ends of the gas rail main body (1), respectively, and branch pipe positions are used for connecting the hydrogen storage bottle and the outlet. The air rail main body (1) is provided with a main pipe which is vertical to four branch pipes, and the four branch pipes are in the same plane.
Further, fig. 2 is an enlarged view of a part of the inlet end of the present invention, and a sealed cavity is formed by sealing the inlet end fitting (2) with the tapered surface of the air rail body (1). The first filter element (4) is arranged in the sealing cavity, the sealing is formed by the pressure of the first spring (3) and the inner cavity contact line of the air rail main body (1), the check valve stop block (15) is connected with the air rail main body (1) through threads and forms sealing on the contact end face below the filter element, the lifting head (16) slides under the action of air pressure at two sides of the lifting head and the third spring (18), the sealing element (17) is driven, the opening and closing between the lifting head (16) and the check valve stop block (15) are realized, and the purpose of unidirectional flow of hydrogen is realized.
Further, the outlet end joint (5) and the conical surface of the air rail main body (1) are sealed to form a sealed cavity. The second filter element (6) is arranged in the sealed cavity, the seal is formed by the pressure of the second spring (7) and the contact line of the inner cavity of the outlet end connector (5), and all the outflow hydrogen must flow through the substrate of the second filter element (6), so that the filtering purpose is realized, and the filtering precision is preferably 10um.
Further, the inlet of the hydrogen storage device is arranged at one end of the main pipe, the inlet is used in hydrogenation, and hydrogen can only enter. The outlet is arranged on the branch pipe, and the outlet is used when hydrogen is needed downstream, and the hydrogen can only flow out. The port that the hydrogen storage bottle is connected sets up in branch pipe position, and this position hydrogen can flow in also can flow out, and during the hydrogenation, hydrogen distributes to each hydrogen storage bottle through the gas rail, and during the hydrogen, hydrogen gathers to the gas rail through the port that is connected with each hydrogen storage bottle to flow out by the export. The sensor position is arranged at the other end of the main pipe.
Furthermore, the gas rail assembly and the external hydrogen transmission pipeline adopt a conical surface sealing mode, and the corresponding interface positions of the gas rail assembly have conical surface characteristics, preferably, the conical surface angle is 60 degrees.
Furthermore, the two ends of the first spring (3), the second spring (6) and the third spring (18) need to be ground flat.
Further, the check valve stop (15) has an internal hexagonal feature, external threads M10.
Further, the first filter element (4) and the second filter element (6) are made of metal, preferably SUS316L.
Further, the sealing member (17) is made of a polymer material, preferably PTFE.
The invention is composed of a forged gas rail main body (1), and integrates functions of a filter and a one-way valve at different positions of the forged gas rail main body. The outlet end also has a filtering function so as to prevent the pipeline and the hydrogen storage bottle in the hydrogen storage system from polluting hydrogen. The invention also has a plurality of interfaces connected with the hydrogen storage bottle to play a role in transmitting and distributing hydrogen. The high integration reduces the leakage risk caused by pipeline connection in the hydrogen storage system, is lighter and has better economy. The method is suitable for the gas conveying field of the vehicle-mounted hydrogen supply system of 20MPa and above for the motor vehicle.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the concept of the present invention, and are intended to be within the scope of the present invention.

Claims (10)

1. An air rail assembly integrating a one-way valve and a filter is characterized by mainly comprising an air rail main body and a sealing piece;
the inlet end connector is connected with the air rail main body through threads, and a sealing cavity for wrapping the first filter element is formed, and the first filter element maintains the relative stability of the position of the first filter element and the sealing of the first filter element and the inner cavity of the air rail main body under the compression action of the first spring;
the sealing element is assembled in the clamping groove of the lifting head, and under the action of the third spring and air pressure, the sealing element and the stop block are opened and closed.
2. The integrated check valve and filter air rail assembly of claim 1 wherein the check valve stop is threadably connected to the air rail body and screwed into a fixed position, one end of the third spring being disposed against the air rail body bore platform, the other end of the third spring being disposed against the lift head rear end;
the outlet end connector is connected with the air rail main body through threads, and a sealing cavity for wrapping the second filter element is formed, and the second filter element maintains the relative stability of the position of the second filter element and the sealing of the outlet end connector under the compression action of the second spring.
3. The integrated check valve and filter air rail assembly of claim 1 wherein the sealing means of the inlet end fitting to the air rail body is a cone seal;
the sealing mode of the outlet end joint and the air rail main body is conical surface sealing.
4. The integrated check valve and filter air rail assembly of claim 1 wherein the air rail body is a forged piece which is in the shape of a branch bud, wherein all branch bud parts are connected as a main, the branch bud parts are branch pipes, and the main pipe is perpendicular to the branch pipes;
the air rail main body is provided with an interface connected with the sensor.
5. The integrated check valve and filter gas rail assembly of claim 1 wherein the flow of hydrogen gas is directional, gas can only flow in from the inlet end to the outlet end, the first communicating hydrogen storage bottle line location, the second communicating hydrogen storage bottle line location, the third communicating hydrogen storage bottle line location hydrogen gas can flow bi-directionally, i.e. hydrogen gas flows out of the gas rail to store in the hydrogen storage bottle during charging, hydrogen gas flows back to the gas rail from the hydrogen storage bottle during use of hydrogen gas;
the inlet end connector, the outlet end connector and the pipeline position of the first communicated hydrogen storage bottle are provided with conical surface characteristics; preferably, the taper angle is 60 °;
the inlet end, the outlet end, the first intercommunication hydrogen storage bottle pipeline position, the second intercommunication hydrogen storage bottle pipeline position, the third intercommunication hydrogen storage bottle pipeline position, the pressure sensor end is responsible for, the position of selecting on the branch pipe is unrestricted, the preferred, the outlet end of hydrogen, the inlet end is at the both ends of being responsible for, the first intercommunication hydrogen storage bottle pipeline position, the second intercommunication hydrogen storage bottle pipeline position, third intercommunication hydrogen storage bottle pipeline position and pressure sensor end setting are on the branch pipe.
6. The integrated check valve and filter gas rail assembly of claim 1, wherein the gas rail body has mounting holes through which the gas rail body is connected to the hydrogen storage system frame.
7. The integrated check valve and filter air rail assembly of claim 1, wherein the air rail assembly has two filtering functions; the cavities for wrapping the first filter element and the second filter element are formed by sealing inlet end joints and outlet end joints with the air rail main body through conical surfaces respectively; the contact position of the first filter element and the air rail main body forms a seal under the pressure action of the first spring;
the contact position of the second filter element and the outlet end connector forms a seal under the pressure of the second spring.
8. The integrated check valve and filter air rail assembly of claim 1 wherein the check valve stop has a hexagonal, conical internal configuration and is adapted to be screwed into the planar position of the air rail internal groove and form a seal.
9. An integrated check valve and filter air rail assembly as recited in claim 1, wherein the seal is mounted in a recess in the poppet, the mounting and check valve stop inner cone forming the check valve opening and closing valve port.
10. An integrated check valve and filter air rail assembly as claimed in claim 1, wherein,
the first filter element and the second filter element are cup-shaped and are made of metal;
the two ends of the first spring, the second spring and the third spring need to be ground flat.
CN202311234376.4A 2023-09-24 2023-09-24 Air rail assembly integrating one-way valve and filter Pending CN117823302A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311234376.4A CN117823302A (en) 2023-09-24 2023-09-24 Air rail assembly integrating one-way valve and filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311234376.4A CN117823302A (en) 2023-09-24 2023-09-24 Air rail assembly integrating one-way valve and filter

Publications (1)

Publication Number Publication Date
CN117823302A true CN117823302A (en) 2024-04-05

Family

ID=90521677

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311234376.4A Pending CN117823302A (en) 2023-09-24 2023-09-24 Air rail assembly integrating one-way valve and filter

Country Status (1)

Country Link
CN (1) CN117823302A (en)

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