High-temperature and high-pressure hydrogen circulating device

Abstract

The utility model relates to the technical field of hydrogen circulation, and discloses a high-temperature and high-pressure hydrogen circulation device which comprises a main body shell, protective doors are movably connected to the two sides of the front face of the main body shell through hinges, mounting plates are fixedly connected to the surfaces of the protective doors, a movable box is arranged at the bottom end of the inner wall of the main body shell, and a heater is fixedly connected to the inner wall of the movable box. When air is exhausted, an exhaust pipe is opened, the first spring pushes the lower pressing plate downwards through the elasticity of the first spring, and the lower pressing plate is pushed downwards through the elasticity of the first spring when the air is exhausted, so that the air is exhausted, and the lower pressing plate is pushed downwards through the elasticity of the first spring. And through the arranged circulating pipe, when the gas exhausted by the circulating pipe is too much, the redundant gas can enter the storage box again through the circulating pipe, and therefore gas circulation is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen circulation, and more specifically to a high-temperature and high-pressure hydrogen circulation device. Background Art

[0002] The hydrogen fuel cell system needs to integrate a hydrogen circulation system to remove the unreacted hydrogen in the fuel cell stack, and after filtering and pressurizing, re-introduce it into the hydrogen fuel cell stack to participate in the reaction together with fresh hydrogen. In this process, the accumulated water and impurities in the stack can be removed, and the newly introduced hydrogen can also be moistened. Currently, a hydrogen circulation pump or ejector is mainly used to pressurize this part of hydrogen and then send it back into the fuel cell.

[0003] The shortcomings of the existing technology: During the use of the existing hydrogen pump, it does not have an external hydrogen circulation device, which makes it easy for hydrogen to accumulate in the inlet hole of the hydrogen pump. In the long run, it will cause cracks at the connection between the pump body and the pipeline, causing hydrogen to leak from the connection. For this reason, we propose a high-temperature and high-pressure hydrogen circulation device to solve the above problems. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a high-temperature and high-pressure hydrogen circulation device to solve the problems existing in the above-mentioned background technology.

[0005] The utility model provides the following technical solutions: a high-temperature and high-pressure hydrogen circulation device, comprising a main body shell, both sides of the front side of the main body shell are movably connected with protective doors through hinges, the surface of the protective door is fixedly connected with a mounting plate, the bottom end of the inner wall of the main body shell is provided with a movable box, the inner wall of the movable box is fixedly connected with a heater, the output end of the heater is fixedly connected with a heating pipe, the side of the heating pipe is fixedly connected with a row plate, the lower surface of the row plate is fixedly connected to the inner wall of the movable box, the inner wall of the main body shell is fixedly connected with a partition, a storage box is placed on the upper surface of the partition, one end of the storage box is fixedly connected with an intake pipe, one end of the storage box away from the intake pipe is fixedly connected with an exhaust pipe, the side of the exhaust pipe is fixedly connected with a circulation pipe, one end of the circulation pipe away from the intake pipe is fixedly connected to the inner wall of the storage box, the intake pipe, the exhaust pipe, and the inner walls of the circulation pipe are all fixedly connected with a flow guide mechanism, and the inner wall of the storage box is movably connected with a lower pressure plate;

[0006] Preferably, the bottom end of the main shell is fixedly connected to a base, and support legs are fixedly connected to the four corners of the lower surface of the base. Clamps are provided on both sides of the upper surface of the inner wall of the main shell, and the inner walls of the clamps are movably engaged with the upper surface of the storage box. Both ends of the upper surface of the clamps are movably connected with bolts through bearings, and the sides of the bolts are threadedly connected to the threaded grooves on the upper surface of the main shell.

[0007] Preferably, a handle is fixedly connected to one side of the surface of the protective door, an observation window is opened at the top of the surface of the protective door, and transparent glass is fixedly installed on the inner wall of the observation window.

[0008] Preferably, a display is fixedly connected to the top end of the mounting plate on a side away from the protective door, and control buttons are equidistantly arranged at the bottom end of the mounting plate on a side away from the protective door.

[0009] Preferably, one end of the movable box extending to the outside of the main shell is fixedly connected to a strip plate, and a handle is fixedly connected to the surface of the strip plate away from the movable box. Both sides of the movable box are fixedly connected to sliding bars, and the outer sides of the sliding bars are movably connected to sliding rails, and the side surfaces of the sliding rails are fixedly connected to the inner wall of the main shell.

[0010] Preferably, one end of the lower surface of the lower pressure plate is fixedly connected to a temperature detector, the other end of the lower surface of the lower pressure plate is fixedly connected to a pressure detector, both ends of the upper surface of the lower pressure plate are fixedly connected to movable rods, the outer side of the movable rods are movably sleeved with sleeve rods, the top of the sleeve rods are fixedly connected to the upper surface of the inner wall of the storage box, the outer side of the movable rods are sleeved with a first spring, and both ends of the first spring are respectively fixedly connected to the upper surface of the inner wall of the storage box and the upper surface of the lower pressure plate.

[0011] Preferably, the guide mechanism includes a guide plate, the surface of the guide plate is provided with through holes at equal intervals, the middle part of the inner wall of the guide plate is movably connected with a limit rod, one end of the limit rod is fixedly connected with a block, the end of the guide plate away from the block is fixedly connected with a baffle, the surface of the baffle close to the guide plate is fixedly connected with a sealing gasket, the outer side of the limit rod is sleeved with a second spring, and the two ends of the second spring are respectively fixedly connected to the side of the block and the surface of the guide plate.

[0012] Technical effects and advantages of the utility model:

[0013] 1. When the utility model is used, the gas will enter the interior of the storage box through the air inlet pipe. As the gas is gradually injected, the pressure inside the storage box will gradually increase. At this time, the pressure inside the storage box will push the lower pressure plate upward, thereby squeezing and deforming the movable rod, thereby generating elastic force. When the gas is discharged, the exhaust pipe is opened. At this time, the movable rod will push the lower pressure plate downward through its own elastic force, so that the lower pressure plate pushes the gas out of the storage box, and through the provided circulation pipe, when the circulation pipe discharges too much gas, the excess gas will re-enter the interior of the storage box through the circulation pipe, thereby realizing the circulation of the gas.

[0014] 2. The utility model is provided with a guide mechanism. When the device is used, when the gas passes through the guide mechanism, the thrust generated by the gas will blow the baffle, so that the sealing gasket is separated from the surface of the guide plate. At this time, the gas flows through the through holes on the surface of the guide plate, and through the second spring, it will push the block through its own elastic force, so that the baffle is reset, which can prevent gas backflow and help improve the stability of the device.

[0015] 3. The utility model is provided with a heater. When the device is used, when the temperature detector detects that the temperature inside the storage box is lower than the set value, the heater will start. During the operation, the heater will continue to generate heat through the heating tube. During the heating process of the heating tube, the lower surface of the storage box will be baked, thereby heating the storage box. When the temperature reaches the set temperature, the heater will be turned off, so that the temperature inside the storage box can be kept at the set temperature, which is beneficial to improving the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic cross-sectional diagram of the overall structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the splint structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the movable box of the utility model;

[0020] Figure 5 For the utility model Figure 2 Schematic diagram of the structure at A in the middle;

[0021] Figure 6 For the utility model Figure 2 Schematic diagram of the structure at point B in the middle.

[0022] The reference numerals are: 1. main body shell; 101. base; 102. support leg; 103. partition; 104. clamp; 1041. bolt; 2. protective door; 201. buckle; 202. observation window; 3. mounting plate; 301. display; 302. control button; 4. movable box; 401. strip plate; 402. handle; 403. slide bar; 404. slide rail; 5. heater; 501. heating tube; 502, row plate; 6, storage box; 601, intake pipe; 602, exhaust pipe; 603, circulation pipe; 7, lower pressure plate; 701, temperature detector; 702, pressure detector; 703, movable rod; 7031, sleeve rod; 704, first spring; 8, guide mechanism; 801, guide plate; 802, limit rod; 8021, block; 803, baffle; 8031, sealing gasket; 804, second spring. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solution of the present invention in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The high-temperature and high-pressure hydrogen circulation device involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0024] The utility model provides a high-temperature and high-pressure hydrogen circulation device, comprising a main body shell 1, both sides of the front side of the main body shell 1 are movably connected with a protective door 2 through a hinge, the surface of the protective door 2 is fixedly connected with a mounting plate 3, the bottom end of the inner wall of the main body shell 1 is provided with a movable box 4, the inner wall of the movable box 4 is fixedly connected with a heater 5, the output end of the heater 5 is fixedly connected with a heating tube 501, the side of the heating tube 501 is fixedly connected with a row plate 502, the lower surface of the row plate 502 is fixedly connected to the inner wall of the movable box 4, the inner wall of the main body shell 1 is fixedly connected with a partition 103, the upper surface of the partition 103 is placed with a storage box 6, one end of the storage box 6 is fixedly connected with an intake pipe 601, the end of the storage box 6 away from the intake pipe 601 is fixedly connected with an exhaust pipe 602, the side of the exhaust pipe 602 is fixedly connected with a circulation pipe 603, and the circulation pipe 603 is away from the intake pipe 601. The end is fixedly connected to the inner wall of the storage box 6, and the inner walls of the air inlet pipe 601, the exhaust pipe 602, and the circulation pipe 603 are all fixedly connected with the guide mechanism 8. The inner wall of the storage box 6 is movably connected with the lower pressure plate 7. When working, the gas will enter the interior of the storage box 6 through the air inlet pipe 601. As the gas is gradually injected, the pressure inside the storage box 6 will gradually increase. At this time, the pressure inside the storage box 6 will push the lower pressure plate 7 upward, thereby squeezing and deforming the first spring 704, thereby generating elastic force. When exhausting, the exhaust pipe 602 is opened. At this time, the first spring 704 will push the lower pressure plate 7 downward by its own elastic force, so that the lower pressure plate 7 pushes the gas inside the storage box 6 out, and through the provided circulation pipe 603, when the circulation pipe 603 discharges too much gas, the excess gas will re-enter the interior of the storage box 6 through the circulation pipe 603, thereby realizing the circulation of the gas.

[0025] Furthermore, a base 101 is fixedly connected to the bottom end of the main shell 1, and support legs 102 are fixedly connected to the four corners of the lower surface of the base 101. Clamps 104 are provided on both sides of the upper surface of the inner wall of the main shell 1, and the inner walls of the clamps 104 are movably connected to the upper surface of the storage box 6. Both ends of the upper surface of the clamps 104 are movably connected to bolts 1041 through bearings, and the sides of the bolts 1041 are threadedly connected to the threaded grooves on the upper surface of the main shell 1. When in use, the storage box 6 will be fixed by the clamps 104 during use, thereby improving the stability of the device.

[0026] Furthermore, a handle 201 is fixedly connected to one side of the surface of the protective door 2, an observation window 202 is opened at the top of the surface of the protective door 2, and transparent glass is fixedly installed on the inner wall of the observation window 202. A display 301 is fixedly connected to the top of the mounting plate 3 on the side away from the protective door 2, and control buttons 302 are equidistantly arranged at the bottom of the mounting plate 3 on the side away from the protective door 2. When in use, the display 301 and control buttons 302 are provided to facilitate the staff to observe and adjust the working status of the device.

[0027] Furthermore, one end of the movable box 4 extending to the outside of the main shell 1 is fixedly connected with a strip plate 401, and a handle 402 is fixedly connected to the surface of the strip plate 401 away from the movable box 4. Both sides of the movable box 4 are fixedly connected with slide bars 403, and the outer sides of the slide bars 403 are movably connected with slide rails 404, and the sides of the slide rails 404 are fixedly connected to the inner wall of the main shell 1. When in use, the movable box 4 is conveniently opened through the provided slide bars 403 and slide rails 404, thereby facilitating the maintenance and replacement of the heater 5.

[0028] Furthermore, one end of the lower surface of the lower pressure plate 7 is fixedly connected to a temperature detector 701, the other end of the lower surface of the lower pressure plate 7 is fixedly connected to a pressure detector 702, both ends of the upper surface of the lower pressure plate 7 are fixedly connected to movable rods 703, the outer side of the movable rod 703 is movably sleeved with a sleeve rod 7031, the top of the sleeve rod 7031 is fixedly connected to the upper surface of the inner wall of the storage box 6, the outer side of the movable rod 703 is sleeved with a first spring 704, the two ends of the first spring 704 are respectively fixedly connected to the upper surface of the inner wall of the storage box 6 and the upper surface of the lower pressure plate 7. When in use, the first spring 704 will push the lower pressure plate 7 downward through its own elastic force, so that the lower pressure plate 7 pushes the gas inside the storage box 6 out, so that the device can always maintain a specific pressure, thereby improving the stability of the device.

[0029] Further, the guide mechanism 8 includes a guide plate 801, the surface of the guide plate 801 is provided with through holes at equal intervals, the middle of the inner wall of the guide plate 801 is movably connected to a limit rod 802, one end of the limit rod 802 is fixedly connected to a stopper 8021, the end of the guide plate 801 away from the stopper 8021 is fixedly connected to a baffle 803, the surface of the baffle 803 close to the guide plate 801 is fixedly connected to a sealing gasket 8031, the outer side of the limit rod 802 is sleeved with a second spring 804, the two ends of the second spring 804 are respectively connected to the side of the stopper 8021 and the guide plate 8 01 is fixedly connected to the surface of the guide plate 801. When in use, the inner walls of the intake pipe 601, the exhaust pipe 602 and the circulation pipe 603 are all provided with a guide mechanism 8. When the gas passes through the inside, the thrust generated by the gas will blow the baffle 803, so that the sealing gasket 8031 ​​is separated from the surface of the guide plate 801. At this time, the gas flows through the through holes on the surface of the guide plate 801, and through the second spring 804, it will push the stopper 8021 through its own elastic force, so that the baffle 803 is reset, which can prevent the gas from flowing back, thereby improving the stability of the device.

[0030] The working principle of the utility model is as follows: when in use, the device is connected to an external hydrogen supply system through an air inlet pipe 601 and an exhaust pipe 602. When working, the gas will enter the interior of the storage box 6 through the air inlet pipe 601. As the gas is gradually injected, the pressure inside the storage box 6 will gradually increase. At this time, the pressure inside the storage box 6 will push the lower pressure plate 7 upward, thereby squeezing and deforming the first spring 704, thereby generating elastic force. When exhausting, the exhaust pipe 602 is opened. At this time, the first spring 704 will push the lower pressure plate 7 downward by its own elastic force, so that the lower pressure plate 7 pushes the gas inside the storage box 6 out, and through the provided circulation pipe 603, when the circulation pipe 60 When the exhausted gas is too much, the excess gas will re-enter the storage box 6 through the circulation pipe 603, thereby realizing the circulation of the gas. Furthermore, the gas guide mechanism 8 is provided on the inner walls of the intake pipe 601, the exhaust pipe 602 and the circulation pipe 603. When the gas passes through the inner walls, the thrust generated by the gas will blow the baffle 803, thereby separating the sealing gasket 8031 ​​from the surface of the baffle 801. At this time, the gas flows through the through holes on the surface of the baffle 801, and the second spring 804 is provided, which pushes the stopper 8021 by its own elastic force, thereby resetting the baffle 803, thereby preventing the gas from flowing back, thereby improving the stability of the device.

[0031] By means of the heater 5, when the temperature detector 701 detects that the temperature inside the storage box 6 is lower than the set value, the heater 5 will start. During operation, the heater 5 will continuously generate heat through the heating tube 501. During the heating process of the heating tube 501, the lower surface of the storage box 6 will be baked, thereby heating the storage box 6. When the heating reaches the set temperature, the heater 5 will be turned off, thereby maintaining the temperature inside the storage box 6 at the set temperature, which is beneficial to improving the stability of the device.

[0032] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0033] Secondly: The drawings of the embodiments disclosed in the present utility model only involve structures related to the embodiments disclosed in the present utility model, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0034] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A high-temperature and high-pressure hydrogen circulation device, comprising a main housing (1), Features: Both sides of the front side of the main shell (1) are movably connected to a protective door (2) via a hinge, and a mounting plate (3) is fixedly connected to the surface of the protective door (2). A movable box (4) is provided at the bottom end of the inner wall of the main shell (1), and a heater (5) is fixedly connected to the inner wall of the movable box (4). The output end of the heater (5) is fixedly connected to a heating tube (501), and a row plate (502) is fixedly connected to the side of the heating tube (501), and the lower surface of the row plate (502) is fixedly connected to the inner wall of the movable box (4). The inner wall of the main shell (1) is fixedly connected to a partition (103), and the partition A storage box (6) is placed on the upper surface of (103), one end of the storage box (6) is fixedly connected to an air intake pipe (601), the end of the storage box (6) away from the air intake pipe (601) is fixedly connected to an exhaust pipe (602), the side of the exhaust pipe (602) is fixedly connected to a circulation pipe (603), the end of the circulation pipe (603) away from the air intake pipe (601) is fixedly connected to the inner wall of the storage box (6), the inner walls of the air intake pipe (601), the exhaust pipe (602) and the circulation pipe (603) are all fixedly connected to a flow guide mechanism (8), and the inner wall of the storage box (6) is movably connected to a lower pressure plate (7).

2. A high temperature and high pressure hydrogen circulation device according to claim 1, Features: The bottom end of the main shell (1) is fixedly connected to a base (101), and the four corners of the lower surface of the base (101) are fixedly connected to support legs (102). Clamps (104) are provided on both sides of the upper surface of the inner wall of the main shell (1), and the inner walls of the clamps (104) are movably connected to the upper surface of the storage box (6). Bolts (1041) are movably connected to the two ends of the upper surface of the clamps (104) through bearings, and the sides of the bolts (1041) are threadedly connected to the threaded grooves on the upper surface of the main shell (1).

3. A high temperature and high pressure hydrogen circulation device according to claim 1, Features: A handle (201) is fixedly connected to one side of the surface of the protective door (2), an observation window (202) is provided at the top of the surface of the protective door (2), and transparent glass is fixedly installed on the inner wall of the observation window (202).

4. A high temperature and high pressure hydrogen circulation device according to claim 1, Features: A display (301) is fixedly connected to the top end of the mounting plate (3) on the side away from the protective door (2), and control buttons (302) are arranged at equal intervals on the bottom end of the mounting plate (3) on the side away from the protective door (2).

5. A high temperature and high pressure hydrogen circulation device according to claim 1, Features: One end of the movable box (4) extending to the outside of the main shell (1) is fixedly connected to a strip plate (401), and a handle (402) is fixedly connected to the surface of the strip plate (401) away from the movable box (4). Both sides of the movable box (4) are fixedly connected to slide bars (403), and the outer sides of the slide bars (403) are movably connected to slide rails (404), and the side surfaces of the slide rails (404) are fixedly connected to the inner wall of the main shell (1).

6. A high temperature and high pressure hydrogen circulation device according to claim 1, Features: One end of the lower surface of the lower pressure plate (7) is fixedly connected to a temperature detector (701), and the other end of the lower surface of the lower pressure plate (7) is fixedly connected to a pressure detector (702). Both ends of the upper surface of the lower pressure plate (7) are fixedly connected to movable rods (703). The outer side of the movable rod (703) is movably sleeved with a sleeve rod (7031). The top of the sleeve rod (7031) is fixedly connected to the upper surface of the inner wall of the storage box (6). The outer side of the movable rod (703) is sleeved with a first spring (704). The two ends of the first spring (704) are respectively fixedly connected to the upper surface of the inner wall of the storage box (6) and the upper surface of the lower pressure plate (7).

7. A high temperature and high pressure hydrogen circulation device according to claim 1, Features: The guide mechanism (8) comprises a guide plate (801), the surface of the guide plate (801) is provided with through holes at equal intervals, the middle part of the inner wall of the guide plate (801) is movably connected to a limit rod (802), one end of the limit rod (802) is fixedly connected to a stopper (8021), the end of the guide plate (801) away from the stopper (8021) is fixedly connected to a baffle (803), the surface of the baffle (803) close to the guide plate (801) is fixedly connected to a sealing gasket (8031), the outer side of the limit rod (802) is sleeved with a second spring (804), and the two ends of the second spring (804) are respectively fixedly connected to the side of the stopper (8021) and the surface of the guide plate (801).

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