Hydrogen gas supply system, fuel cell stack and hydrogen energy power generation vehicle using the system

Abstract

The present invention relates to a hydrogen gas supply system and a stack and a hydrogen energy power generation vehicle using the system, belonging to hydrogen energy power generation; the system comprises a plurality of hydrogen tanks and a gas supply pipeline, the gas supply pipeline comprises a main gas supply pipe and a plurality of bronchial tubes fixedly connected to the gas supply pipe, and the plurality of hydrogen tanks and bronchial tubes are installed and connected in a one-to-one correspondence; an outer tube is rotatably connected to the end of the bronchial tube, and a movable tube matched with the thread thereof is arranged inside the outer tube; a baffle is arranged inside the bronchial tube, and a vent hole is provided on the baffle, and an end of the movable tube close to the baffle can be fitted together with the baffle to realize the connection and closure of the vent hole; a limiting pin is fixedly connected to the inner wall of the bronchial tube, and a limiting groove in the same length direction as the bronchial tube is provided on the circumferential surface of the movable tube; a gas transmission pipe is fixedly connected to the bottle mouth of the hydrogen tank, and the end of the gas transmission pipe can enter the outer tube and be connected to the movable tube, and a valve is also fixedly connected to the gas transmission pipe. The present invention has the effect of facilitating the replacement of hydrogen tanks and improving work efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen energy power generation, and in particular to a hydrogen energy power generation gas supply system and a hydrogen energy power generation vehicle using the system. Background Art

[0002] Hydrogen energy power generation vehicle refers to a hydrogen-oxygen generator set that uses hydrogen and oxygen combustion. This unit is a rocket-type internal combustion engine with a generator. It does not require a complex steam boiler system, so it is simple, easy to maintain, and quick to start. It can be easily moved to a location where emergency power generation or short-term power generation is required for power generation, and is easy to use. In general, multiple stacks are set in a power generation vehicle, and the power generated can be selected according to needs.

[0003] The above-mentioned existing technical solutions have the following defects: the gas supply system in general hydrogen energy power generation vehicles is directly connected to the hydrogen tank through multiple pipelines, but the problem with this gas supply system is that there are too many pipelines, which makes it inconvenient to disassemble and replace the hydrogen tank, reducing the efficiency of replacing the hydrogen tank. Summary of the invention

[0004] In view of the deficiencies in the prior art, one of the objectives of the present invention is to provide a hydrogen energy power generation and gas supply system.

[0005] The above-mentioned object of the present invention is achieved through the following technical solutions:

[0006] A hydrogen energy power generation gas supply system, comprising a plurality of hydrogen tanks and a gas supply pipeline, wherein the gas supply pipeline comprises a main gas supply pipe and a plurality of bronchial pipes fixedly connected to the gas supply pipe, and the plurality of hydrogen tanks and bronchial pipes are installed and connected in a one-to-one correspondence;

[0007] An outer tube is rotatably connected to the end of the bronchus, and the outer tube can rotate along its own axis. A moving tube that is threadedly matched with the outer tube is provided inside the outer tube, so that the moving tube can move inside the outer tube along its own axis.

[0008] The movable tube can be sleeved on the gas delivery tube, and the movable tube and the gas delivery tube have an interference fit; a limiting pin is fixedly connected to the inner wall of the bronchus, and a limiting groove in the same length direction as the movable tube is opened on the circumferential surface, and the limiting pin is in the limiting groove;

[0009] A gas delivery pipe is fixedly connected to the valve outlet of the hydrogen tank, and the end of the gas delivery pipe can enter the outer pipe and be connected to the mobile pipe.

[0010] By adopting the above technical solution, the gas supply pipe can collect the hydrogen inside multiple hydrogen tanks through the bronchial tubes and then transmit it. Multiple bronchial tubes are fixedly connected to the gas supply pipe together, and there is no need to connect to other terminals. The length of the bronchial tubes can be reduced, thereby avoiding entanglement of the bronchial tubes and making the gas supply system more concise; at the same time, by rotating the outer tube, the movable tube that matches the thread of the outer tube can be moved, and when connected to the bronchial tube and the hydrogen tank, the gas supply pipe on the hydrogen tank is inserted into the outer tube for fixing, and then the outer tube is rotated so that the movable tube can be sleeved on the gas supply pipe, and the movable tube and the gas supply pipe have an interference fit, so that the movable tube and the gas supply pipe can be tightly connected. They are connected together, and when the valve on the gas pipe is opened, hydrogen enters the gas supply pipe through the gas pipe, the mobile pipe and the bronchial pipe, which is quick and convenient and facilitates the installation of the hydrogen tank; when the hydrogen tank needs to be removed, it only needs to be rotated in the opposite direction to move the mobile pipe away from the gas pipe, and the end of the mobile pipe away from the gas pipe can fit with the baffle, and the pipe wall of the gas pipe can cover the vent, so when the hydrogen tank is removed, the bronchial pipe can also be sealed to prevent the gas in the gas supply pipe from flowing out, so multiple hydrogen tanks can be removed separately without affecting the entire gas supply system; therefore, it is convenient to replace the hydrogen tank independently and can improve work efficiency.

[0011] In a preferred example, the present invention can be further configured as follows: a sealing gasket is fixedly connected to one end of the moving tube close to the baffle, and the sealing gasket can fit tightly with the surface of the baffle.

[0012] By adopting the above technical solution, when the moving tube and the baffle are fitted together, the sealing gasket can be squeezed, thereby increasing the sealing between the moving tube and the baffle, and further enabling the moving tube to better seal the vent hole.

[0013] In a preferred example, the present invention can be further configured as follows: the end of the outer tube away from the bronchus is rotatably connected to a fixed tube, and the fixed tube can rotate along its own axis direction;

[0014] A plurality of clamping plates are fixedly connected to one end of the fixed tube away from the outer tube, and the plurality of clamping plates are evenly spaced around the axis of the fixed tube; a plurality of limit plates are fixedly connected to the circumferential surface of the gas pipe of the hydrogen tank, and the plurality of limit plates are evenly spaced around the axis of the gas pipe, and the space between adjacent limit plates can be used for the passage of the clamping plates.

[0015] By adopting the above technical solution, the outer tube and the gas pipe can be connected together through the functions of the fixed tube, the clamping plate and the limit plate, and the rotation of the outer tube will not be affected, so that the outer tube and the gas pipe can be connected together, and the mobile tube and the gas pipe can be better socketed, thereby improving the stability of the connection between the mobile tube and the gas pipe.

[0016] In a preferred example, the present invention can be further configured as follows: a chamfer is provided at one end of the moving tube away from the baffle.

[0017] By adopting the above technical solution, the chamfer can increase the diameter of the end of the mobile pipe, thereby facilitating the gas pipe to enter the mobile pipe and improving the installation speed.

[0018] In a preferred example, the present invention can be further configured as follows: a layer of rubber pad is fixedly connected to the inner wall of the moving tube.

[0019] By adopting the above technical solution, the interference fit between the movable tube and the gas pipe is achieved through the rubber pad, so while achieving the interference fit, the sealing between the gas pipe and the movable tube can also be increased.

[0020] A second object of the present invention is to provide a fuel cell stack using a hydrogen gas supply system.

[0021] The above-mentioned object of the present invention is achieved through the following technical solutions:

[0022] A fuel cell stack using a hydrogen gas supply system, comprising a plurality of fuel cells connected in parallel, an air intake pipe fixedly connected to the fuel cell stack, and the above-mentioned hydrogen gas supply system;

[0023] The end of the intake pipe away from the fuel cell stack is connected to the air supply pipe, the air supply pipe is fixedly connected with a solenoid valve, the outlet of the solenoid valve is fixedly connected with a threaded pipe, and the intake pipe is rotatably connected with a connecting pipe so that the connecting pipe can rotate along its own axis and can be threadedly connected with the threaded pipe.

[0024] By adopting the above technical solution, the hydrogen gas supply system can be connected to the fuel cell stack through multiple intake pipes, and can be threadedly connected together through threaded pipes and connecting pipes, which facilitates the connection between the gas supply system and the fuel cell stack, and further enables the fuel cell stack to be disassembled separately, thereby facilitating the use of the gas supply system.

[0025] A third object of the present invention is to provide a hydrogen energy power generation vehicle using a hydrogen gas supply system.

[0026] The above-mentioned object of the present invention is achieved through the following technical solutions:

[0027] A hydrogen energy power generation vehicle using a hydrogen gas supply system comprises a vehicle body, a carriage fixedly connected to the vehicle body, and a gas supply pipeline installed inside the carriage;

[0028] A hydrogen fuel cell capable of providing power for the vehicle engine is arranged on the lower surface of the vehicle body. A feed pipe is fixedly connected to the hydrogen fuel cell. The feed pipe and the air supply pipe are fixedly connected. A switch valve is fixedly connected to the feed pipe.

[0029] By adopting the above technical solution, the gas supply system can directly supply gas to the hydrogen fuel cell of the power generation vehicle, and can also supply gas to the fuel cell stack. The gas supply system can also supply gas to the hydrogen fuel cell or the fuel cell stack separately, so the gas supply pipeline can more freely adjust the hydrogen supply.

[0030] In a preferred example, the present invention can be further configured as follows: the feed pipe and the air intake pipe are both fixedly connected to the air supply pipe;

[0031] The battery stack is installed inside the carriage, and a partition is fixedly connected inside the carriage. The hydrogen tank is installed above the partition, and the battery stack is located below the partition.

[0032] By adopting the above technical solution, the partition can isolate the hydrogen tank and the fuel cell stack. The fuel cell stack will generate heat when working, and the partition can prevent the heat from moving toward the hydrogen tank, thereby avoiding affecting the hydrogen tank.

[0033] In summary, the present invention includes at least one of the following beneficial technical effects:

[0034] 1. A hydrogen energy power generation gas supply system, which can collect and distribute the gas supply of multiple hydrogen tanks, and can facilitate the replacement of hydrogen tanks through the cooperation of movable pipes and baffles. When the hydrogen tanks are disassembled, the bronchial pipes can be automatically closed, so that the gas supply system will not be unable to work normally due to the replacement of a single hydrogen tank, thereby improving work efficiency and not affecting the gas supply of the gas supply system;

[0035] 2. A fuel cell stack using a hydrogen gas supply system, wherein the fuel cell stack is threadedly connected to the gas supply pipe through a threaded pipe and a connecting pipe, thereby facilitating the connection between the fuel cell stack and the gas supply pipeline, and facilitating the disassembly and maintenance of the fuel cell stack;

[0036] 3. A hydrogen energy power generation vehicle using a hydrogen gas supply system, in which the gas supply pipe in the gas supply system is connected to the fuel cell stack and the hydrogen fuel cell respectively through a bronchial pipe and a connecting pipe, and the gas supply pipeline can supply gas to the fuel cell stack and the hydrogen fuel cell at the same time, and can also supply gas to the fuel cell stack and the hydrogen fuel cell separately, so that the gas supply system can more flexibly allocate hydrogen. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 Schematic diagram of the structure of the gas supply system installed on the power generation vehicle in the embodiment.

[0038] Figure 2 It is a partial cross-sectional view of the connection structure between the bronchial tube and the hydrogen tank in the embodiment.

[0039] Figure 3 yes Figure 2 Enlarged view of part A in the middle.

[0040] Figure 4is an exploded view highlighting the fixed pipe structure in the embodiment.

[0041] Figure 5 yes Figure 4 Enlarged view of part B in the middle.

[0042] Figure 6 2 is a schematic diagram showing the structure of the limiting plate in the embodiment.

[0043] Figure 7 It is a structural diagram highlighting the battery stack in the embodiment.

[0044] Figure 8 yes Figure 7 Enlarged view of part C in the middle.

[0045] In the figure, 1. hydrogen tank; 11. gas pipeline; 12. limit plate; 2. gas supply pipeline; 21. main gas supply pipe; 22. bronchial pipe; 221. limit pin; 222. baffle; 223. vent; 23. outer tube; 24. movable tube; 241. limit groove; 242. rubber pad; 243. chamfer; 25. sealing pad; 26. fixed tube; 261. clamping plate; 27. vertical tube; 28. feed pipe; 3. fuel cell stack; 31. intake pipe; 32. flange; 4. vehicle body; 41. hydrogen fuel cell; 5. compartment; 51. partition. DETAILED DESCRIPTION

[0046] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0047] Embodiment 1

[0048] Reference Figure 1 , is a hydrogen energy power generation gas supply system disclosed in the present invention, comprising a plurality of hydrogen tanks 1 and a gas supply pipeline 2 arranged at one end of the hydrogen tank 1, the gas supply pipeline 2 comprising a main gas supply pipe 21 and a plurality of branch pipes 22 fixedly connected to the main gas supply pipe 21, the hydrogen tank 1 and the branch pipe 22 are detachably connected, thereby facilitating the disassembly and installation of the hydrogen tank 1 and improving the efficiency of replacing the hydrogen tank 1.

[0049] Reference Figure 2 and Figure 3, the end of the bronchial tube 22 close to the hydrogen tank 1 is rotatably connected with the outer tube 23, and the outer tube 23 can rotate along its own axis direction. The outer tube 23 is provided with a movable tube 24 threadedly connected thereto, and the movable tube 24 also extends into the bronchial tube 22. A limiting pin 221 is fixedly connected to the inner wall of the bronchial tube 22, and a limiting groove 241 in the same length direction as the bronchial tube 22 is provided on the outer wall of the movable tube 24. The limiting pin 221 is in the limiting groove 241 and can slide along the limiting groove 241; therefore, rotating the outer tube 23 can achieve the purpose of controlling the movable tube 24 to move along its own direction. The valve of the hydrogen tank 1 is fixedly connected with the gas supply pipe 11, and the gas supply pipe 11 can extend into the outer tube 23. Rotating the outer tube 23 can make the movable tube 24 move in the direction close to the gas supply pipe 11, so that the movable tube 24 can be sleeved on the gas supply pipe 11, thereby connecting the bronchial tube 22 and the hydrogen tank 1 together, which is convenient for the installation of the hydrogen tank 1.

[0050] Reference Figure 3 A layer of rubber pad 242 is fixedly connected to the inner wall of the movable tube 24, and the rubber pad 242 is used to achieve interference fit between the movable tube 24 and the gas pipe 11, so that the movable tube 24 and the gas pipe 11 can be stably connected together, and the sealing between the movable tube 24 and the gas pipe 11 can be improved.

[0051] Reference Figure 3 A chamfer 243 is provided at the end of the mobile tube 24 close to the gas pipe 11. The chamfer 243 can increase the end diameter of the mobile tube 243, thereby making it easier for the gas pipe 11 to enter the mobile tube 24, thereby improving the installation efficiency of the hydrogen tank 1.

[0052] Reference Figure 3 A baffle 222 is also fixedly connected to the inside of the bronchial tube 22, and a plurality of vents 223 are formed on the baffle 22, and the vents 223 are evenly distributed around the axis of the bronchial tube 22; when disassembling the hydrogen tank 1, the outer tube 23 is rotated in the opposite direction, so that the movable tube 24 can move away from the gas pipe 11, thereby separating the movable tube 24 from the gas pipe 11, and facilitating the disassembly of the hydrogen tank 1. At the same time, the movable tube 24 can fit the surface of the baffle 222, and the end of the movable tube 24 blocks the vents 223, thereby achieving the closure of the bronchial tube 22. Therefore, when disassembling the hydrogen tank 1, the closure of the bronchial tube 22 is completed, which is convenient and quick, and improves the work efficiency.

[0053] Reference Figure 3 A sealing gasket 25 is also fixedly connected to the end of the mobile tube 24 close to the baffle 222. When the mobile tube 24 and the baffle 222 are in contact, the sealing gasket 25 can increase the sealing between the mobile tube 24 and the baffle 222, thereby improving the sealing of the mobile tube 24 to the bronchus 22 and reducing the probability of hydrogen leakage.

[0054] Reference Figure 5 , Figure 6 as well as Figure 7 The end of the outer tube 23 away from the bronchus 22 is also rotatably connected to a fixed tube 26, and a plurality of clamping plates 261 are fixedly connected to the end of the fixed tube 26 away from the outer tube 23, and the clamping plates 261 are evenly distributed around the axis of the fixed tube 26, and a plurality of limit plates 12 are fixedly connected to the outer wall of the gas pipe 11, and the plurality of limit plates 12 are evenly distributed around the axis of the gas pipe 11, and the distance between adjacent limit plates 12 can be provided for the passage of the clamping plates 261. When installing the hydrogen tank 1, the gas pipe 11 is first extended into the outer tube 23, and then the clamping plates 261 are passed through the gap between the limit plates 12, and the fixed tube 26 is rotated so that the clamping plates 261 are stuck on the side of the limit plate 12 away from the bronchus 22, and then the fixed tube 26 is not rotated, and the outer tube 23 can be rotated. Therefore, when the movable tube 24 is sleeved on the gas pipe 11, it will not push the gas pipe 11 to move in the direction away from the bronchus 22.

[0055] Embodiment 2

[0056] Reference Figure 7 and Figure 8 , is a fuel cell stack using a hydrogen gas supply system disclosed in the present invention, including multiple fuel cells 3 and an intake pipe 31 fixedly connected to the fuel cell 3, and multiple vertical risers 27 are also fixedly connected to the main gas supply pipe 21, and the intake pipe 31 and the riser 27 are bolted together by a flange 32, so that the gas supply system can supply gas to the fuel cell 3; and when a hydrogen tank 1 or a fuel cell 3 is replaced separately, the gas supply of the gas supply system will not be affected, thereby not affecting the power generation work of the fuel cell.

[0057] Embodiment 3

[0058] Reference Figure 8 , is a hydrogen energy power generation vehicle using a hydrogen supply system disclosed in the present invention, including a vehicle body 4 and a carriage 5 fixedly connected to the vehicle body 4, a partition 51 is fixedly connected inside the carriage 5, the partition 51 divides the carriage into two parts, the hydrogen tank 1 is in the space above the partition 51, and the fuel cell stack 3 is in the space below the partition 51; the fuel cell stack 3 will generate heat during the power generation process, and the partition 51 can prevent the heat from entering the space where the hydrogen tank 1 is located, thereby avoiding affecting the hydrogen tank.

[0059] Reference Figure 8 A feed pipe 28 is also fixedly connected to the main air supply pipe 21, and a hydrogen fuel cell 41 is fixedly provided on the lower surface of the vehicle body 4. The feed pipe 28 can be connected to the hydrogen fuel cell 41, so that the air supply system can also supply the hydrogen fuel cell 41 to provide fuel for the movement of the power generation vehicle, so that the power generation vehicle does not need additional fuel.

[0060] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A hydrogen gas supply system, characterized in that: The invention comprises a plurality of hydrogen tanks (1) and a gas supply pipeline (2), wherein the gas supply pipeline (2) comprises a main gas supply pipe (21) and a plurality of bronchial pipes (22) fixedly connected to the main gas supply pipe (21), and the plurality of hydrogen tanks (1) and the bronchial pipes (22) are installed and connected in a one-to-one correspondence; An outer tube (23) is rotatably connected to the end of the bronchus (22). The outer tube (23) can rotate along its own axis. A movable tube (24) is provided inside the outer tube (23) and is threadably matched with the outer tube (23), so that the movable tube (24) can move inside the outer tube (23) along its own axis. A chamfer (243) is provided at one end of the movable tube (24) away from the baffle (222). A layer of rubber pad (242) is also fixedly connected to the inner wall of the movable tube (24). One end of the mobile tube (24) extends into the bronchus (22), and a baffle (222) is provided inside the bronchus (22), and a vent (223) is provided on the baffle (222), and one end of the mobile tube (24) close to the baffle (222) can be attached to the baffle (222) to achieve communication and sealing of the vent (223); The movable tube (24) can be sleeved on the gas delivery tube (11), and the movable tube (24) and the gas delivery tube (11) are interference fit; a limiting pin (221) is fixedly connected to the inner wall of the bronchial tube (22), a limiting groove (241) in the same length direction as the movable tube (24) is provided on the circumferential surface, and the limiting pin (221) is located in the limiting groove (241); A gas delivery pipe (11) is fixedly connected to the valve outlet of the hydrogen tank (1), and an end of the gas delivery pipe (11) can enter the outer pipe (23) and be connected to the movable pipe (24).

2. The hydrogen supply system according to claim 1, characterized in that: One end of the moving tube (24) close to the baffle (222) is fixedly connected with a sealing gasket (25), and the sealing gasket (25) can fit tightly with the surface of the baffle (222).

3. The hydrogen supply system according to claim 1, characterized in that: One end of the outer tube (23) away from the bronchus (22) is rotatably connected to a fixed tube (26), and the fixed tube (26) can rotate along its own axis direction; A plurality of clamping plates (261) are fixedly connected to one end of the fixed tube (26) away from the outer tube (23), and the plurality of clamping plates (261) are evenly spaced around the axis of the fixed tube (26). A plurality of limit plates (12) are fixedly connected to the circumferential surface of the gas delivery pipe (11) of the hydrogen tank (1), and the plurality of limit plates (12) are evenly spaced around the axis of the gas delivery pipe (11), and the spaces between adjacent limit plates (12) allow the clamping plates (261) to pass through.

4. A fuel cell stack using a hydrogen gas supply system, characterized in that: It comprises a plurality of fuel cell stacks (3) arranged in parallel, an air intake pipe (31) fixedly connected to the fuel cell stacks (3), and a hydrogen gas supply system as claimed in any one of claims 1 to 3; A vertical standpipe (27) is fixedly connected to the main pipe, an air intake pipe (31) is fixedly connected to the battery stack (3), and the air intake pipe (31) and the standpipe (27) are bolted together via a flange (32).

5. A hydrogen energy power generation vehicle using a hydrogen gas supply system, characterized in that: It comprises a vehicle body (4), a vehicle compartment (5) fixedly connected to the vehicle body (4), and a hydrogen supply system as claimed in any one of claims 1 to 3 installed inside the vehicle compartment (5); A hydrogen fuel cell (41) capable of providing power to an engine of the vehicle body (4) is provided on the lower surface of the vehicle body (4); a feed pipe (28) is fixedly connected to the hydrogen fuel cell (41); and the feed pipe (28) is fixedly connected to a main air supply pipe (21).

6. The hydrogen energy power generation vehicle using the hydrogen gas supply system according to claim 5 is characterized in that: The hydrogen energy power generation vehicle further comprises a plurality of battery stacks (3) arranged in parallel and an air intake pipe (31) fixedly connected to the battery stacks (3), wherein the feed pipe (28) and the air intake pipe (31) are both fixedly connected to the main air supply pipe (21); The battery stack (3) is installed inside the carriage (5), a partition (51) is fixedly connected inside the carriage (5), the hydrogen tank (1) is installed above the partition (51), and the battery stack (3) is located below the partition (51).

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