Hydrogen supply device of fuel cell engine

Abstract

The invention relates to the technical field of fuel cells, and discloses a fuel cell engine hydrogen supply device which comprises a bottom plate, and a supply mechanism is arranged on the top surface of the bottom plate; and the supply mechanism comprises two vertical plates fixedly connected to the top face of the bottom plate, the inner walls of the two vertical plates are fixedly connected with a hydrogen cylinder, and the left side of the hydrogen cylinder communicates with a gas inlet pipe. The hydrogen cylinder is generally filled with compressed hydrogen, after the hydrogen cylinder and the gas inlet pipe are communicated, the compressed hydrogen in the hydrogen cylinder can be discharged into the flow dividing box through the gas inlet pipe, under the action of the flow dividing box and the flow dividing pipes, the hydrogen on the bottom plate is divided and discharged into the sealing bottles, and at the moment, the expanded hydrogen in the hydrogen cylinder can be released; and the multiple flow dividing pipes are used for buffering and dividing expanded gas, damage to a conveying and supplying system caused by too large tension during gas expansion is avoided, and then the stability in the whole conveying process is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of fuel cells, in particular to a hydrogen supply device for a fuel cell engine. Background Art

[0002] The working principle of the hydrogen supply device for the fuel cell engine is to transport hydrogen from the hydrogen storage tank to the fuel cell stack while ensuring that the pressure, flow and purity of the hydrogen meet the requirements of the fuel cell stack.

[0003] In the prior art, the interior of a hydrogen tank is usually filled with high-pressure liquid hydrogen. When the high-pressure liquid hydrogen is gasified, discharged, transmitted and supplied, it will generate a strong expansion force. If this tension is not buffered, it is easy to cause structural damage and even cause a safety accident. Summary of the invention

[0004] The object of the present invention is to provide a hydrogen supply device for a fuel cell engine to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: The present invention is a hydrogen supply device for a fuel cell engine, comprising a bottom plate, the top surface of which is provided with a supply mechanism; The supply mechanism includes two vertical plates fixedly connected to the top surface of the bottom plate, the inner walls of the two vertical plates are fixedly connected to hydrogen cylinders, the left side of the hydrogen cylinder is connected to an air inlet pipe, the hydrogen cylinder is fixedly connected to the air inlet pipe, the end of the air inlet pipe away from the hydrogen cylinder is connected to a shunt box, the air inlet pipe is fixedly connected to the shunt box, the top surface of the bottom plate is fixedly connected to a fixed frame, and the fixed frame is provided with a plurality of adjustment components; The regulating assembly comprises a plurality of sealing bottles fixedly connected to the inner wall of the fixing frame.

[0006] Furthermore, a plurality of shunt tubes are connected to the right side of the shunt box, the shunt box and the plurality of shunt tubes are fixedly connected, one end of the plurality of shunt tubes away from the shunt box extends to the inner wall of the sealed bottle, and the shunt tubes are fixedly connected to the sealed bottle.

[0007] Furthermore, a fixing block is fixedly connected to the inner wall of the sealed bottle, a sleeve is fixedly connected to the right side of the fixing block, and three air inlet grooves are opened on the fixing block.

[0008] Furthermore, a piston 1 is slidably connected to the inner wall of the sleeve, a slide rod 1 is fixedly connected to the right side of the piston 1, the right end of the slide rod 1 slides and extends to the right side of the sleeve, the right end of the slide rod 1 is fixedly connected to a connecting plate, the inner wall of the sealed bottle is fixedly connected to a fixing plate, a ventilation groove is provided on the fixing plate, the outer diameter of the slide rod 1 is smaller than the inner diameter of the ventilation groove, and the left side of the connecting plate is in contact with the right side of the fixing plate.

[0009] Furthermore, a spring is wound around the outer wall of the sliding rod 1, one end of the spring is fixedly connected to the sleeve, and the other end of the spring is fixedly connected to the connecting plate.

[0010] Furthermore, the outer walls of several of the sealed bottles are connected to air outlet pipes, the air outlet pipes are fixedly connected to the sealed bottles, the right ends of several of the air outlet pipes are connected to expansion pipes, and valves are provided on several of the expansion pipes.

[0011] Furthermore, the inner walls of several of the sealed bottles are slidably connected to piston 2, the right ends of several of the pistons 2 are fixedly connected to slide rod 2, the right ends of several of the slide rods 2 are slidably extended to the right side of the sealed bottle, and the right ends of several of the slide rods 2 are fixedly connected to a movable plate.

[0012] Furthermore, the top surface of the base plate is fixedly connected to a fixing frame, a plurality of the flared tubes are passed through the fixing frame, a plurality of the flared tubes are fixedly connected to the fixing frame, a hydraulic cylinder is fixedly connected to the inner wall of the fixing frame, and the right side of the movable plate is fixedly connected to the output end of the hydraulic cylinder.

[0013] The present invention has the following beneficial effects: (1) The present invention is provided with a supply mechanism. The interior of the hydrogen cylinder is generally filled with compressed hydrogen. After the hydrogen cylinder is connected to the air inlet pipe, the compressed hydrogen in the hydrogen cylinder will be discharged to the interior of the diverter box through the air inlet pipe. Under the action of the diverter box and multiple diverter pipes, the bottom plate hydrogen is diverted and discharged to the interior of multiple sealed bottles. At this time, the expanded hydrogen in the hydrogen cylinder will be released, so that the multiple diverter pipes can buffer and divert the expanded gas, thereby avoiding excessive tension during gas expansion to damage the transportation supply system, thereby improving the stability of the overall transportation process.

[0014] (2) The present invention is provided with an adjustment component. When the hydrogen in the hydrogen bottle is about to be exhausted and the gas pressure is insufficient or the hydrogen discharge volume needs to be regulated, the hydraulic cylinder in the fixed frame can be driven to drive the movable plate and the sliding rod 2 to move to the left. At this time, the pistons 2 in the multiple sealed bottles will also move to the left to squeeze the gas inside the sealed bottles. At this time, the left side of the connecting plate will abut against the right side of the fixing plate to prevent gas backflow, and at the same time, the hydrogen inside the sealed bottle can be squeezed out through the outlet pipe. After the piston 2 moves to the left side of the outlet pipe, the internal space of the sealed bottle on the left side of the piston 2 is in a sealed state. At this time, the electronic valve can be closed and the hydraulic cylinder can be driven to drive the multiple pistons 2 to move to the right until the piston 2 moves to the right side of the outlet pipe. After the hydrogen in the hydrogen bottle is pumped into the sealed bottle, the electronic valve can be opened to discharge the hydrogen. Not only can the hydrogen discharge volume be controlled, but also the residual hydrogen in the hydrogen bottle can be pumped out, thereby achieving more efficient resource utilization.

[0015] (3) The present invention provides an outlet pipe and a flared pipe, so that the gas inside the system can flow and adjust effectively, thereby improving the overall performance and efficiency. The outlet pipe plays an important role in the discharge of gas. It not only ensures that the gas can be discharged smoothly, but also reduces the accumulation of internal pressure, avoiding possible leakage and failure. The design of the flared pipe allows the gas to be further diffused and the speed to be increased when it flows through this part. This process helps to reduce energy loss. The electronic valve is used to control the discharged hydrogen, which greatly improves the hydrogen delivery efficiency and safety of the overall device.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of a top-view cross-sectional structure of the present invention; Figure 3 It is a schematic diagram of the front cross-sectional structure of the present invention; Figure 4 It is a structural schematic diagram of the regulating assembly of the present invention; Figure 5 for Figure 1 A schematic diagram of the enlarged structure at A in the middle; Figure 6 for Figure 2 A schematic diagram of the enlarged structure at B in the middle; Figure 7 for Figure 3 Schematic diagram of the enlarged structure at C in the middle; Figure 8 for Figure 4 Schematic diagram of the enlarged structure at D in the middle; In the accompanying drawings, the components represented by the reference numerals are listed as follows: In the figure: 1. bottom plate; 2. supply mechanism; 21. vertical plate; 22. hydrogen cylinder; 23. air inlet pipe; 24. shunt box; 25. fixed frame; 26. adjustment component; 261. sealing bottle; 262. fixing block; 263. sleeve; 264. air inlet groove; 265. piston one; 266. slide bar one; 267. connecting plate; 268. fixing plate; 269. ventilation groove; 2691. spring; 27. shunt pipe; 28. air outlet pipe; 281. flaring pipe; 282. electronic valve; 29. ​​piston two; 291. slide bar two; 292. moving plate; 3. fixed frame; 4. hydraulic cylinder. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 8 As shown, the present invention is a hydrogen supply device for a fuel cell engine, comprising a bottom plate 1, a supply mechanism 2 is arranged on the top surface of the bottom plate 1; The supply mechanism 2 includes two vertical plates 21 fixedly connected to the top surface of the bottom plate 1, the inner walls of the two vertical plates 21 are fixedly connected with hydrogen bottles 22, the left side of the hydrogen bottle 22 is connected with an air inlet pipe 23, the hydrogen bottle 22 is fixedly connected to the air inlet pipe 23, the end of the air inlet pipe 23 away from the hydrogen bottle 22 is connected with a shunt box 24, the air inlet pipe 23 is fixedly connected to the shunt box 24, the top surface of the bottom plate 1 is fixedly connected with a fixed frame 25, and the fixed frame 25 is provided with a plurality of adjustment components 26; The regulating assembly 26 includes a plurality of sealed bottles 261 fixedly connected to the inner wall of the fixing frame 25. The right side of the shunt box 24 is connected with a plurality of shunt tubes 27. The shunt box 24 and the plurality of shunt tubes 27 are fixedly connected. One end of the plurality of shunt tubes 27 away from the shunt box 24 extends to the inner wall of the sealed bottle 261. The shunt tubes 27 are fixedly connected to the sealed bottle 261. The supply mechanism 2 is provided. The interior of the hydrogen bottle 22 is generally filled with compressed hydrogen. When the hydrogen bottle 22 is connected to the inlet, the hydrogen bottle 22 is connected to the inlet. After the air pipe 23, the compressed hydrogen inside the hydrogen bottle 22 will be discharged to the inside of the diverter box 24 through the air inlet pipe 23. Under the action of the diverter box 24 and multiple diverter tubes 27, the hydrogen on the bottom plate 1 will be diverted and discharged to the inside of multiple sealed bottles 261. At this time, the expanded hydrogen in the hydrogen bottle 22 will be released, so that the multiple diverter tubes 27 can buffer and divert the expanded gas, avoiding damage to the transportation and supply system due to excessive tension during gas expansion, thereby improving the stability of the overall transportation process.

[0021] The inner wall of the sealed bottle 261 is fixedly connected with a fixed block 262, the right side of the fixed block 262 is fixedly connected with a sleeve 263, three air inlet grooves 264 are provided on the fixed block 262, the inner wall of the sleeve 263 is slidably connected with a piston 265, the right side of the piston 265 is fixedly connected with a slide bar 266, the right end of the slide bar 266 slides and extends to the right side of the sleeve 263, the right end of the slide bar 266 is fixedly connected with a connecting plate 267, and the inner wall of the sealed bottle 261 is fixedly connected with a piston 265. A fixing plate 268 is connected, and a venting groove 269 is provided on the fixing plate 268. The outer diameter of the slide bar 266 is smaller than the inner diameter of the venting groove 269. The left side of the connecting plate 267 fits with the right side of the fixing plate 268. A spring 2691 is wound around the outer wall of the slide bar 266. One end of the spring 2691 is fixedly connected to the sleeve 263, and the other end of the spring 2691 is fixedly connected to the connecting plate 267. The outer walls of the plurality of sealed bottles 261 are all connected and provided with an air outlet pipe 28. The air outlet pipe 28 is fixedly connected to the sealing bottle 261, and the right ends of several air outlet pipes 28 are connected to the expansion pipe 281, and the expansion pipes 281 are provided with valves 282. The inner walls of several sealing bottles 261 are slidably connected to the piston 29, and the right ends of several pistons 29 are fixedly connected to the slide rod 291. The right ends of several slide rods 291 are slidably extended to the right side of the sealing bottle 261, and the right ends of several slide rods 291 are fixedly connected to the movable plate. 292, the top surface of the bottom plate 1 is fixedly connected with a fixing frame 3, a plurality of flared tubes 281 are all passed through the fixing frame 3, a plurality of flared tubes 281 are all fixedly connected with the fixing frame 3, the inner wall of the fixing frame 3 is fixedly connected with a hydraulic cylinder 4, and the right side of the movable plate 292 is fixedly connected with the output end of the hydraulic cylinder 4. By providing an adjustment component 26, not only the emission of hydrogen can be controlled, but also the residual hydrogen in the hydrogen bottle 22 can be extracted, thereby achieving more efficient resource utilization.

[0022] When in use, the hydrogen cylinder 22 is generally filled with compressed hydrogen by providing a supply mechanism 2. After the hydrogen cylinder 22 and the air inlet pipe 23 are connected, the compressed hydrogen in the hydrogen cylinder 22 is discharged to the inside of the shunt box 24 through the air inlet pipe 23. After passing through the shunt box 24 and the plurality of shunt pipes 27, the hydrogen in the bottom plate 1 is shunted and discharged to the inside of the plurality of sealed bottles 261. At this time, the expanded hydrogen in the hydrogen cylinder 22 is released, so that the plurality of shunt pipes 27 buffer and shunt the expanded gas, thereby avoiding damage to the transport supply system caused by excessive tension during gas expansion, thereby improving the stability of the overall transport process; By providing an adjustment component 26, after the expanded gas is guided into the adjustment component 26, the gas will flow into the inner middle section of the sealed bottle 261 through the multiple air inlet grooves 264 on the fixed block 262. At this time, the expanded gas will push the connecting plate 267 to move to the right, thereby driving the slide bar 266 and the piston 265 to slide to the right inside the sleeve 263. While stretching the spring 2691, the gas will flow into the inner middle section of the sealed bottle 261 through the gap between the sleeve 263 and the connecting plate 267, further buffering the expanded gas while opening the electronic valve 282, so that the gas can be discharged from the outlet pipe 28 in the middle section of the sealed bottle 261. When the hydrogen in the hydrogen bottle 22 is about to be exhausted and the air pressure is insufficient or the discharge amount of hydrogen needs to be regulated, the hydraulic cylinder 4 in the fixed frame 3 can be driven to drive the movable plate 292 and the slide bar 291 to move to the left. When the piston 29 moves to the left, the pistons 29 in the multiple sealed bottles 261 will also move to the left to squeeze the gas in the sealed bottles 261. At this time, the left side of the connecting plate 267 will abut against the right side of the fixing plate 268 to prevent the gas from flowing back. At the same time, the hydrogen in the sealed bottle 261 can be squeezed out through the outlet pipe 28. After the piston 29 moves to the left side of the outlet pipe 28, the internal space of the sealed bottle 261 on the left side of the piston 29 is in a sealed state. At this time, the electronic valve 282 can be closed, and the hydraulic cylinder 4 is driven to drive the multiple pistons 29 to move to the right until the piston 29 moves to the right side of the outlet pipe 28. After the hydrogen in the hydrogen bottle 22 is pumped into the sealed bottle 261, the electronic valve 282 can be opened to discharge the hydrogen. Not only can the emission of hydrogen be controlled, but also the residual hydrogen in the hydrogen bottle 22 can be pumped out, thereby achieving more efficient resource utilization. By providing the outlet pipe 28 and the expansion pipe 281, the gas inside the system can flow and adjust effectively, thereby improving the overall performance and efficiency. The outlet pipe 28 plays an important role in the discharge process of the gas. It not only ensures that the gas can be discharged smoothly, but also reduces the accumulation of internal pressure, avoiding possible leakage and failure. The design of the expansion pipe 281 allows the gas to be further diffused and the speed to be increased when it flows through this part. This process helps to reduce energy loss, and cooperates with the electronic valve 282 to regulate the discharged hydrogen, greatly improving the hydrogen transportation efficiency and safety of the overall device.

[0023] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A hydrogen supply device for a fuel cell engine, comprising a base plate (1), characterized in that: A supply mechanism (2) is provided on the top surface of the bottom plate (1); The supply mechanism (2) comprises two vertical plates (21) fixedly connected to the top surface of the bottom plate (1), the inner walls of the two vertical plates (21) being fixedly connected to hydrogen bottles (22), an air intake pipe (23) being arranged in communication with the left side of the hydrogen bottle (22), the hydrogen bottle (22) being fixedly connected to the air intake pipe (23), an end of the air intake pipe (23) away from the hydrogen bottle (22) being arranged in communication with a flow divider box (24), the air intake pipe (23) being fixedly connected to the flow divider box (24), a fixing frame (25) being fixedly connected to the top surface of the bottom plate (1), and a plurality of adjustment components (26) being arranged on the fixing frame (25); The regulating assembly (26) comprises a plurality of sealing bottles (261) fixedly connected to the inner wall of the fixing frame (25).

2. A fuel cell engine hydrogen supply device according to claim 1, characterized in that: A plurality of shunt tubes (27) are provided on the right side of the shunt box (24), the shunt box (24) and the plurality of shunt tubes (27) are fixedly connected, one end of the plurality of shunt tubes (27) away from the shunt box (24) extends to the inner wall of the sealing bottle (261), and the shunt tubes (27) are fixedly connected to the sealing bottle (261).

3. A hydrogen supply device for a fuel cell engine according to claim 2, characterized in that: A fixing block (262) is fixedly connected to the inner wall of the sealed bottle (261), a sleeve (263) is fixedly connected to the right side of the fixing block (262), and three air inlet grooves (264) are provided on the fixing block (262).

4. A hydrogen supply device for a fuel cell engine according to claim 3, characterized in that: The inner wall of the sleeve (263) is slidably connected to a piston 1 (265), the right side of the piston 1 (265) is fixedly connected to a slide rod 1 (266), the right end of the slide rod 1 (266) slides and extends to the right side of the sleeve (263), the right end of the slide rod 1 (266) is fixedly connected to a connecting plate (267), the inner wall of the sealed bottle (261) is fixedly connected to a fixing plate (268), a ventilation groove (269) is provided on the fixing plate (268), the outer diameter of the sliding rod 1 (266) is smaller than the inner diameter of the ventilation groove (269), and the left side of the connecting plate (267) is in contact with the right side of the fixing plate (268).

5. A hydrogen supply device for a fuel cell engine according to claim 4, characterized in that: A spring (2691) is wound around the outer wall of the sliding rod 1 (266); one end of the spring (2691) is fixedly connected to the sleeve (263); and the other end of the spring (2691) is fixedly connected to the connecting plate (267).

6. A hydrogen supply device for a fuel cell engine according to claim 5, characterized in that: The outer walls of the plurality of sealed bottles (261) are connected to an air outlet pipe (28), the air outlet pipe (28) is fixedly connected to the sealed bottle (261), the right ends of the plurality of air outlet pipes (28) are connected to an expansion pipe (281), and the plurality of expansion pipes (281) are provided with a valve (282).

7. A hydrogen supply device for a fuel cell engine according to claim 6, characterized in that: The inner walls of several of the sealed bottles (261) are slidably connected to piston 2 (29), the right ends of several of the pistons 2 (29) are fixedly connected to slide rod 2 (291), the right ends of several of the slide rods 2 (291) are slidably extended to the right side of the sealed bottle (261), and the right ends of several of the slide rods 2 (291) are fixedly connected to a movable plate (292).

8. A hydrogen supply device for a fuel cell engine according to claim 7, characterized in that: The top surface of the bottom plate (1) is fixedly connected to a fixing frame (3), a plurality of the flared tubes (281) are all passed through the fixing frame (3), a plurality of the flared tubes (281) are all fixedly connected to the fixing frame (3), an inner wall of the fixing frame (3) is fixedly connected to a hydraulic cylinder (4), and the right side of the movable plate (292) is fixedly connected to an output end of the hydraulic cylinder (4).

Images