Pipeline connecting structure of hydrogen supply system
By introducing a buffer venting device into the hydrogen supply system and utilizing the design of buffer components and valve connection components, the problem of damage to pipelines and connecting parts caused by high-pressure hydrogen flow is solved, achieving safe and efficient hydrogen transmission.
Patent Information
- Application Number
- CN202423112996.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-12-17
AI Technical Summary
In existing technologies, when high-pressure hydrogen flows in pipelines, it may generate a large impact force, causing damage to the pipelines and connecting components.
A buffer ventilation device is adopted, including four ventilation branch pipes, two three-dimensional five-way valves, a buffer assembly, valves and valve connection assemblies. Through the buffer system composed of the mounting cavity, springs, telescopic buffer components and other components in the buffer assembly, the high-pressure hydrogen flow is diverted and buffered, reducing the impact force on the pipeline and connecting parts.
This effectively reduces the damage to pipelines and connecting components caused by high-pressure hydrogen flow, achieving safe and efficient hydrogen transmission.
Smart Images
Figure CN223677570U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to hydrogen supply system technical field especially relates to a hydrogen supply system's pipeline connection structure. BACKGROUND
[0002] The pressurized filling integrated skid-mounted hydrogenation equipment is an innovative hydrogen energy supply facility, which integrates the functions of hydrogen pressurization, storage and filling. The equipment receives external hydrogen supply (or internal hydrogen production) and pressurizes it, and then stores it in a high-pressure hydrogen storage tank. When hydrogenation is needed for fuel cell vehicles or other devices that need to use hydrogen, the equipment will automatically start the hydrogenation program, and high-pressure hydrogen will be filled into the target device through a hydrogenation gun.
[0003] The prior art skid-mounted hydrogenation station includes a gas unloading column, a compressor, a plurality of pressure level hydrogen storage tanks, a cooler and a hydrogenation machine. The gas unloading column is connected to the compressor and the cooler respectively. The compressor is connected to the gas inlet ends of the plurality of pressure level hydrogen storage tanks respectively. The compressor also forms a water cooling circulation system with the cooler through a pipeline. The gas outlet ends of the plurality of pressure level hydrogen storage tanks are connected to the cooler respectively. The cooler is connected to the hydrogenation machine through a pipeline. Hydrogen is delivered to the gas unloading column for delivery to the cooler and the compressor respectively. The compressor is used to raise the pressure of hydrogen from the gas unloading column to a predetermined value, and then cool the pressurized hydrogen, and then deliver the cooled hydrogen to the plurality of pressure level hydrogen storage tanks. The cooler is used to cool hydrogen from the gas unloading column or the plurality of pressure level hydrogen storage tanks and to cool the compressor. The hydrogenation machine is used to fill the cooled hydrogen into hydrogen fuel cell vehicles. The pipeline connection structure of the hydrogen supply system is a key part to ensure the safe and efficient transmission of hydrogen.
[0004] However, in the above-mentioned technology, the connections between the plurality of pressure level hydrogen storage tanks of the equipment, and the connections with the compressor, the cooler and the hydrogenation machine respectively are all connected through pipelines, and the connections are adjusted and controlled by adjusting valves installed on the pipelines. However, in the hydrogen supply system, hydrogen usually needs to be stored and delivered at high pressure. When high-pressure hydrogen flows in the pipeline, it may generate a large impact force, causing damage to the pipeline and connecting parts. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a pipeline connection structure of a hydrogen supply system, which solves the problem that high-pressure hydrogen flowing in the pipeline may generate a large impact force, causing damage to the pipeline and connecting parts.
[0006] To achieve the above-mentioned purpose, the utility model provides a pipeline connection structure of a hydrogen supply system, which comprises a connecting pipeline,
[0007] Further comprising a buffer ventilation device;
[0008] The buffer ventilation device comprises four ventilation branch pipes, two three-dimensional five-way pipes, a buffer assembly, a valve and a valve connecting assembly, the four ventilation branch pipes are installed between the two three-dimensional five-way pipes, the connecting pipeline is welded to one of the three-dimensional five-way pipes, the other three-dimensional five-way pipe is connected with the connecting pipeline through the valve, the buffer assembly is installed on the three-dimensional five-way pipe, the valve is connected with the three-dimensional five-way pipe through the valve connecting assembly and is connected with the connecting pipeline through the valve connecting assembly, and the valve connecting assembly is installed on the valve.
[0009] The buffer assembly comprises a mounting cavity, a spring and a telescopic buffer component, the mounting cavity is fixedly connected with the three-dimensional five-way pipe and is located on the outer wall of the three-dimensional five-way pipe, the spring is fixedly installed on the inner side wall of the mounting cavity, and the telescopic buffer component is installed at one end of the spring.
[0010] The telescopic buffer component comprises a piston rod, a folding pipe and a rubber ball, the piston rod is fixedly connected with the spring and is located at one end of the spring, the folding pipe is fixedly connected with the three-dimensional five-way pipe and the rubber ball, and the rubber ball is fixedly connected with the piston rod and is located at one end of the piston rod extending into the three-dimensional five-way pipe.
[0011] The three-dimensional five-way pipe is provided with a connecting hole which is arranged at one end of the three-dimensional five-way pipe close to the mounting cavity and is matched with the piston rod.
[0012] The valve connecting assembly comprises a connecting plate and a connecting bolt, the connecting plate is fixedly connected with the valve and is located at both ends of the outer side of the valve, and the connecting bolt is threadedly connected with the connecting plate and penetrates through the connecting plate.
[0013] The pipeline connecting structure of the hydrogen supply system of the utility model, hydrogen flow is input from the connecting pipeline of the right end, the hydrogen flow is controlled through the valve, enters the three-dimensional five-way pipe of the right end, carries out buffer input through the buffer assembly on the three-dimensional five-way pipe, then carries out shunt buffer input through the four ventilation branch pipes connected and converges in the three-dimensional five-way pipe of the left end, finally enters the next component through the connecting pipeline of the left end, thereby realizes that the buffer ventilation device carries out buffer transmission to high pressure hydrogen flow, reduces the damage to the pipeline and connecting component. BRIEF DESCRIPTION OF DRAWINGS
[0014] In order to more clearly illustrate the technical scheme in the embodiment or prior art of the present application, the drawings needed to be used in the embodiment or prior art description will be briefly introduced.
[0015] Fig. 1 It is the front view of the pipeline connecting structure of the hydrogen supply system of the utility model.
[0016] Fig. 2 is the structure diagram of the pipeline connection structure of the hydrogen supply system.
[0017] Fig. 3 is the internal structure diagram of the pipeline connection structure of the hydrogen supply system.
[0018] In the figure: 101-connection pipeline, 102-vent branch pipe, 103-solid five-way, 104-valve, 105-mounting cavity, 106-spring, 107-piston rod, 108-folding pipe, 109-rubber ball, 110-connection hole, 111-connection plate, 112-connection bolt. DETAILED DESCRIPTION
[0019] The embodiments of the present application will be described in detail below, examples of which are shown in the accompanying drawings, the embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.
[0020] Please refer to Figs. 1 to 3 , wherein Fig. 1 is the front view of the pipeline connection structure of the hydrogen supply system, Fig. 2 is the structure diagram of the pipeline connection structure of the hydrogen supply system, Fig. 3 is the internal structure diagram of the pipeline connection structure of the hydrogen supply system.
[0021] The pipeline connection structure of the hydrogen supply system of the present application: including connection pipeline 101 and buffer ventilation device, the buffer ventilation device includes four ventilation branch pipes 102, two solid five-ways 103, a buffer assembly, a valve 104 and a valve connection assembly, the buffer assembly includes a mounting cavity 105, a spring 106 and a telescopic buffer member, the telescopic buffer member includes a piston rod 107, a folding pipe 108 and a rubber ball 109, the solid five-way 103 has a connection hole 110, the valve connection assembly includes a connection plate 111 and a connection bolt 112. The foregoing scheme solves the problem that high-pressure hydrogen gas flowing in the pipeline may generate a large impact force, causing damage to the pipeline and connecting parts; it can be understood that the foregoing scheme can effectively divert the hydrogen gas flow through the buffer ventilation device, thereby achieving a buffering effect, and further effectively reducing the impact force on the pipeline and connecting parts when high-pressure hydrogen gas flows through the pipeline for hydrogenation.
[0022] In the embodiment, the connection between the hydrogen storage tanks of multiple pressure levels in the hydrogen supply system, and the connection between the hydrogen storage tanks and the gas unloading column, the compressor cooler and the hydrogen dispenser are all connected by two connecting pipes 101, and the buffer venting device is used for buffer communication.
[0023] The four vent branch pipes 102 are installed between the two three-dimensional five-way pipes 103, one three-dimensional five-way pipe 103 is welded with the connecting pipe 101, and the other three-dimensional five-way pipe 103 is connected with the connecting pipe 101 through the valve 104, the buffer assembly is installed on the three-dimensional five-way pipe 103, the valve 104 is connected with the three-dimensional five-way pipe 103 through the valve connecting assembly, and the valve 104 is connected with the connecting pipe 101 through the valve connecting assembly, and the valve connecting assembly is installed on the valve 104. One end of one connecting pipe 101 is fixedly installed with the three-dimensional five-way pipe 103, and the other end of the other connecting pipe 101 is installed with the other three-dimensional five-way pipe 103 through the valve 104, and the three-dimensional five-way pipe 103 is fixedly installed with the buffer assembly, and the hydrogen gas is buffered into the three-dimensional five-way pipe 103 through the buffer assembly. The four vent branch pipes 102 are welded and communicated with the four through holes of the two three-dimensional five-way pipes 103, so that the hydrogen gas entering the three-dimensional five-way pipe 103 can be effectively divided through the four vent branch pipes 102, thereby achieving the effect of re-buffering, reducing the impact force of hydrogen gas flowing at high pressure, and reducing the damage to the pipeline and the connecting parts. The valve 104 is installed through the valve connecting assembly to realize the functions of opening, closing, adjusting flow and the like of the pipeline connection structure of the hydrogen supply system, and the valve 104 is a butterfly valve. Therefore, the hydrogen gas is input from the right end of the connecting pipe 101, the flow rate of the hydrogen gas is controlled through the valve 104, the hydrogen gas enters the right end of the three-dimensional five-way pipe 103, the buffer assembly on the three-dimensional five-way pipe 103 is used for buffer input, then the four vent branch pipes 102 are connected to divide and buffer the input hydrogen gas into the left end of the three-dimensional five-way pipe 103, and finally the hydrogen gas enters the next component through the left end of the connecting pipe 101, thereby realizing the buffer transmission of the high-pressure hydrogen gas flow by the buffer venting device, and reducing the damage to the pipeline and the connecting parts.
[0024] Secondly, the installation cavity 105 is fixedly connected with the three-dimensional five-way pipe 103 and is located on the outer wall of the three-dimensional five-way pipe 103; the spring 106 is fixedly installed on the inner side wall of the installation cavity 105; and the telescopic buffer member is installed on one end of the spring 106. The left end of the spring 106 is fixedly connected with the left side wall in the inner cavity of the installation cavity 105, the right end of the spring 106 is fixedly connected with the telescopic buffer member, and the telescopic penetrating member penetrates one side of the installation cavity 105 installed on the three-dimensional five-way pipe 103. When hydrogen enters the inside of the three-dimensional five-way pipe 103, it will impact the telescopic buffer member, the telescopic buffer member will extrude the spring 106 to the left, so that the spring 106 elastically deforms to generate a reaction force, thereby buffering the impact force of hydrogen.
[0025] Meanwhile, the piston rod 107 is fixedly connected with the spring 106 and is located at one end of the spring 106; the folding pipe 108 is fixedly connected with the three-dimensional five-way pipe 103 and is fixedly connected with the rubber ball 109; the rubber ball 109 is fixedly connected with the piston rod 107 and is located at one end of the piston rod 107 extending into the three-dimensional five-way pipe 103. The connecting hole 110 is arranged at one end of the three-dimensional five-way pipe 103 close to the installation cavity 105, and the piston rod 107 is matched. The cross section of the piston rod 107 is in the shape of an I-beam, one end of the piston rod 107 extends into the inner cavity of the installation cavity 105 and is limitingly and slidingly matched with the shape of the inner cavity of the installation cavity 105, and the right end of the spring 106 is fixedly connected with the piston rod 107, the middle end of the piston rod 107 penetrates the connecting hole 110 of the three-dimensional five-way pipe 103 and extends into the three-dimensional five-way pipe 103 to be fixedly connected with the rubber ball 109, the rubber ball 109 is in the shape of a hemisphere, the rubber ball 109 can block the inlet of the valve 104 connected with the three-dimensional five-way pipe 103, and the effect of a one-way valve can be achieved, and the folding pipe 108 is fixedly sleeved on one side of the three-dimensional five-way pipe 103 close to the connecting hole 110, and the other side of the folding pipe 108 is fixedly sleeved on the piston rod 107, the folding pipe 108 can effectively prevent hydrogen from entering the installation cavity 105, when hydrogen enters the three-dimensional five-way pipe 103 through the valve 104 and impacts the surface of the rubber ball 109, the rubber ball 109 drives the piston rod 107 to move into the installation cavity 105, extrudes the spring 106, and drives the folding pipe 108 to fold, thereby buffering the blocking of the three-dimensional five-way pipe 103 and the impact of hydrogen through the telescopic buffer member.
[0026] Then, the connecting plate 111 is fixedly connected with the valve 104 and located at both ends of the outer side of the valve 104; the connecting bolt 112 is threadedly connected with the connecting plate 111 and penetrates through the connecting plate 111. The connecting plate 111 is welded on the upper and lower sides of the left and right ends of the outer side wall of the valve 104, screw holes are arranged on both ends of the connecting plate 111, the valve 104 is installed and fixed with the three-dimensional five-way pipe 103 through the connecting plate 111 and the connecting bolt 112, and the other end of the valve 104 is installed through the connecting plate 111 and the connecting plate 111 on the connecting pipeline 101 through the connecting bolt 112 and locked through a nut, and then the valve 104 is installed, and the connecting pipeline 101 and the three-dimensional five-way pipe 103 are connected.
[0027] When the pipeline connecting structure of the hydrogen supply system is used, hydrogen flow is input from the right end of the connecting pipeline 101, the flow rate of the hydrogen flow is controlled through the valve 104, the hydrogen flow enters the right end of the three-dimensional five-way pipe 103, is buffered through the buffering assembly on the three-dimensional five-way pipe 103, is then buffered and input into the left end of the three-dimensional five-way pipe 103 through the four connected air branch pipes 102, and finally enters the next component through the left end of the connecting pipeline 101, so that the buffering air device buffers and transmits the high-pressure hydrogen flow, and damage to the pipeline and the connecting component is reduced.
[0028] The above only discloses one or more preferred embodiments of the application, and cannot limit the scope of the application. Those skilled in the art can understand that all or part of the above-mentioned embodiments can be implemented, and equivalent changes made according to the claims of the application still belong to the scope of the application.
Claims
1. A pipeline connection structure of a hydrogen supply system, comprising a connecting pipeline, characterized in that, it further comprises a buffer ventilation device; the buffer ventilation device comprises four ventilation branch pipes, two three-dimensional five-way pipes, a buffer assembly, a valve and a valve connecting assembly, the four ventilation branch pipes are installed between the two three-dimensional five-way pipes, the connecting pipeline is welded to one of the three-dimensional five-way pipes, the other three-dimensional five-way pipe is connected to the connecting pipeline through the valve, the buffer assembly is installed on the three-dimensional five-way pipe, the valve is connected to the three-dimensional five-way pipe through the valve connecting assembly and connected to the connecting pipeline through the valve connecting assembly, and the valve connecting assembly is installed on the valve.
2. The pipeline connection structure of the hydrogen supply system according to claim 1, characterized in that, the buffer assembly comprises a mounting cavity, a spring and a telescopic buffer member, the mounting cavity is fixedly connected to the three-dimensional five-way pipe and located on the outer wall of the three-dimensional five-way pipe, and the spring is fixedly installed on the inner side wall of the mounting cavity; the telescopic buffer member is installed at one end of the spring.
3. The pipeline connection structure of the hydrogen supply system according to claim 2, characterized in that, the telescopic buffer member comprises a piston rod, a folding pipe and a rubber ball, the piston rod is fixedly connected to the spring and located at one end of the spring, the folding pipe is fixedly connected to the three-dimensional five-way pipe and fixedly connected to the rubber ball, and the rubber ball is fixedly connected to the piston rod and located at the end of the piston rod inserted into the three-dimensional five-way pipe.
4. The pipeline connection structure of the hydrogen supply system according to claim 3, characterized in that, the three-dimensional five-way pipe has a connecting hole, the connecting hole is arranged at one end of the three-dimensional five-way pipe close to the mounting cavity and matched with the piston rod.
5. The pipeline connection structure of the hydrogen supply system according to claim 1, characterized in that, the valve connecting assembly comprises a connecting plate and a connecting bolt, the connecting plate is fixedly connected to the valve and located at the outer side of both ends of the valve, and the connecting bolt is threadedly connected to the connecting plate and penetrates through the connecting plate.