A hydrogen energy storage fuel cell power plant

Abstract

This invention belongs to the field of hydrogen fuel cell technology, specifically relating to a hydrogen energy storage fuel cell power generation device, including a fuel cell, a storage battery, an inverter output component, a hydrogen storage component, and a protective component. The fuel cell is electrically connected between the inverter output component and the storage battery, and the inverter output component includes an external power output terminal. The inner cavity of the hydrogen storage tank is connected to the fuel cell. The hydrogen storage component includes a hydrogen storage tank, a hydrogen filling panel, and an explosion-proof layer. The protective component is fixedly installed on the outside of the hydrogen storage component and includes a water storage sleeve, an explosion-proof cover, and a telescopic explosion-proof plate. When the hydrogen storage tank of this invention is subjected to a significant collision risk, the hydrogen in the hydrogen storage tank is automatically partitioned and stored in various hydrogen storage chambers, thereby reducing the hydrogen concentration. Combined with the explosion-proof layer covering the outer perimeter of the hydrogen storage tank and the hollow nitrogen chamber to mitigate external impacts, the device's anti-explosion capability is enhanced. Furthermore, the telescopic explosion-proof plate completely seals the hydrogen storage tank, improving the overall explosion-proof capability of the device.

Description

Technical Field

[0001] This invention belongs to the field of hydrogen fuel cell technology, and specifically relates to a hydrogen energy storage fuel cell power generation device. Background Technology

[0002] Hydrogen fuel cells directly convert chemical energy into electrical energy. Hydrogen gas is delivered to the anode plate of the fuel cell. Through the action of a catalyst, an electron is separated from the hydrogen atom. The hydrogen ion, having lost its electron, passes through the proton exchange membrane and reaches the cathode plate. The separated electron travels through an external circuit to the cathode plate, generating an electric current. The oxygen for hydrogen fuel cells can be obtained from the air. Therefore, as long as hydrogen is continuously supplied to the anode plate, air to the cathode plate, and water (vapor) is promptly removed, electrical energy can be continuously provided. Hydrogen fuel cells have an energy conversion efficiency as high as 60-80%, and since the fuel is hydrogen and oxygen, and the byproduct is clean water, they have promising application prospects.

[0003] Whether hydrogen is produced on-site or stored directly through filling, its unstable and flammable nature necessitates explosion-proof management of the hydrogen cylinders used for storage. However, in existing hydrogen fuel cells, hydrogen is stored uniformly in the same flow space. When the hydrogen cylinder is subjected to external impact, posing an explosion risk, relying solely on the rigid structure of the cylinder itself for explosion protection is extremely difficult, posing significant safety hazards for hydrogen use. Furthermore, since hydrogen filling ports or hydrogen leak detection mechanisms are typically installed on the outer wall of the cylinder, the explosion-proof capability of this area is relatively weak. Summary of the Invention

[0004] The purpose of this invention is to provide a hydrogen energy storage fuel cell power generation device that can effectively solve the problems of high explosion-proof pressure leading to significant safety hazards and weak explosion-proof capability in the hydrogen cylinder installation and operation area when using hydrogen energy storage fuel cell power generation devices.

[0005] Technical solution to achieve the purpose of this invention:

[0006] A hydrogen energy storage fuel cell power generation device includes a mounting cabinet. A fuel cell, a battery, and an inverter output assembly are fixedly mounted on the right side of the cabinet's interior cavity. The fuel cell is electrically connected between the inverter output assembly and the battery, and the inverter output assembly includes an external power output terminal. A hydrogen storage assembly is fixedly mounted on the left side of the cabinet's interior cavity. The hydrogen storage assembly includes a hydrogen storage tank, a hydrogen filling panel fixedly mounted on the left wall of the hydrogen storage tank, and an explosion-proof layer fixedly connected to the outside of the hydrogen storage tank. The interior cavity of the hydrogen storage tank is in communication with the fuel cell. Several independent nitrogen chambers are formed on the side wall of the hydrogen storage tank, located between the hydrogen storage tank and the explosion-proof layer. The inner cavity of the hydrogen storage tank is connected to the nitrogen chamber. Several baffles are fixedly installed in the inner cavity of the hydrogen storage tank, which divide the inner cavity space of the hydrogen storage tank into multiple hydrogen storage chambers. A paddle spring rod is rotatably installed on the central axis of the hydrogen storage tank, and a centrally symmetrical sealing plate is installed on the paddle spring rod at the position corresponding to the baffle. The protective assembly is fixedly installed on the outside of the hydrogen storage assembly, including a water storage sleeve fixedly connected to the outer wall of the hydrogen storage tank, an explosion-proof cover fixedly installed on the top of the hydrogen storage tank, and a telescopic explosion-proof plate slidably inserted into the left wall of the explosion-proof layer. The water storage sleeve is located on the outer periphery of the explosion-proof layer, and the telescopic explosion-proof plate is located between the explosion-proof layer and the water storage sleeve. A nitrogen tank is fixedly connected to the left side of the explosion-proof cover.

[0007] Furthermore, a hydrogen delivery pipe is fixedly connected between the inner cavity of the hydrogen storage tank and the fuel cell, and the hydrogen delivery pipe penetrates the explosion-proof layer and the water storage jacket.

[0008] Furthermore, the partition plate is provided with a centrally symmetrical through groove, the sealing plate is slidably connected to the inner wall of the through groove, and the inner wall of the through groove is provided with a through hole communicating with the nitrogen chamber.

[0009] Furthermore, the explosion-proof cover is sealed to the top of the explosion-proof layer.

[0010] Furthermore, the protective assembly also includes a slip ring slidably connected in the water storage sleeve, a top rod fixedly installed on the top of the slip ring, a pressure chamber formed in the explosion-proof cover and in conjunction with the paddle spring rod, a screw block slidably engaged with the top of the explosion-proof cover, the screw block being threadedly connected to the paddle spring rod, a spring-loaded lever slidably inserted into the left side of the screw block, and a retaining bead movably engaged on the lower wall of the spring-loaded lever.

[0011] Furthermore, the bottom valve port of the nitrogen tank is movably abutted against the top rod, and a sliding cavity adapted to the telescopic explosion-proof plate is opened on the left wall of the explosion-proof layer. A three-way pipe is fixedly connected between the nitrogen tank valve port, the pressurization chamber, and the sliding cavity. The nitrogen tank is connected to the pressurization chamber and the sliding cavity through the three-way pipe.

[0012] Furthermore, both the explosion-proof layer and the water storage sleeve have openings on the left side corresponding to the hydrogenation panel, with the telescopic explosion-proof plate located on the upper wall of the opening.

[0013] Furthermore, the left wall of the hydrogen storage tank is provided with a sliding groove for the movement of the locking ball. The sliding groove is located between the elastic locking rod and the telescopic explosion-proof plate. The lower wall of the elastic locking rod includes an annular groove corresponding to the locking ball, and the right wall of the telescopic explosion-proof plate is provided with a locking groove corresponding to the locking ball.

[0014] The beneficial technical effects of this invention are as follows:

[0015] 1. The present invention provides a hydrogen energy storage fuel cell power generation device. When the hydrogen storage tank is subjected to a large collision risk, the pawl spring rod drives the sealing plate to automatically seal each partition, thereby storing the hydrogen in the hydrogen storage tank in each hydrogen storage chamber. At the same time, the sealing plate deflects to release the nitrogen in the corresponding nitrogen chamber, so as to quickly reduce the hydrogen concentration and reduce the risk of explosion. In addition, the explosion-proof layer is covered around the hydrogen storage tank, and the hollow nitrogen chamber mitigates the impact of external impact, thereby enhancing the explosion resistance of the device.

[0016] 2. The hydrogen energy storage fuel cell power generation device provided by the present invention utilizes the deformation of the water storage jacket to trigger the release of nitrogen tank, thereby directly driving the hydrogen storage component to adjust the protective state, and at the same time stably lowering the telescopic explosion-proof plate to completely seal the hydrogen storage tank, thereby improving the overall explosion-proof capability of the equipment. Attached Figure Description

[0017] Figure 1 A three-dimensional structural diagram of a hydrogen energy storage fuel cell power generation device provided by the present invention;

[0018] Figure 2 A perspective cross-sectional view of a hydrogen energy storage fuel cell power generation device provided by the present invention;

[0019] Figure 3 This is a three-dimensional structural diagram of the hydrogen storage component and protection component in a hydrogen energy storage fuel cell power generation device provided by the present invention.

[0020] Figure 4 This is a first-view perspective sectional view of the hydrogen storage component and protective component in a hydrogen energy storage fuel cell power generation device provided by the present invention.

[0021] Figure 5 This is a second-view perspective sectional view of the hydrogen storage component and protective component in a hydrogen energy storage fuel cell power generation device provided by the present invention.

[0022] Figure 6 This is a three-dimensional cross-sectional view of a hydrogen storage component in a hydrogen energy storage fuel cell power generation device provided by the present invention;

[0023] Figure 7 This is a third-view perspective sectional view of the hydrogen storage component and protective component in a hydrogen energy storage fuel cell power generation device provided by the present invention.

[0024] Figure 8This is a partial three-dimensional structural diagram of the hydrogen storage component in a hydrogen energy storage fuel cell power generation device provided by the present invention.

[0025] In the diagram: 1-Installation cabinet; 2-Fuel cell; 3-Battery; 4-Inverter output assembly; 5-Hydrogen storage assembly; 51-Hydrogen storage tank; 52-Hydrogen refueling panel; 53-Explosion-proof layer; 54-Nitrogen chamber; 55-Baffle; 56-Hydrogen storage cavity; 57-Paddle spring rod; 58-Sealing plate; 59-Through groove; 510-Hydrogen delivery pipe; 6-Protective assembly; 61-Water storage sleeve; 62-Slip ring; 63-Top rod; 64-Explosion-proof cover; 65-Pressurization chamber; 66-Nitrogen tank; 67-Screw block; 68-Elastic locking rod; 69-Locking ball; 610-Telescopic explosion-proof plate. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0027] like Figure 1-8 As shown, the present invention provides a hydrogen energy storage fuel cell power generation device, including an installation cabinet 1. A fuel cell 2, a storage battery 3, and an inverter output assembly 4 are fixedly installed on the right side of the inner cavity of the installation cabinet 1. The fuel cell 2 is electrically connected between the inverter output assembly 4 and the storage battery 3, and the inverter output assembly 4 includes an external power output terminal. A hydrogen storage assembly 5 is fixedly installed on the left side of the inner cavity of the installation cabinet 1. The hydrogen storage assembly 5 includes a hydrogen storage tank 51, a hydrogen filling panel 52 fixedly installed on the left wall of the hydrogen storage tank 51, and an explosion-proof layer 53 fixedly connected to the outside of the hydrogen storage tank 51. Several independent nitrogen chambers 54 are opened on the side wall of the hydrogen storage tank 51. The nitrogen chambers 54 are located between the hydrogen storage tank 51 and the explosion-proof layer 53. Several partitions 55 are fixedly installed in the inner cavity of the hydrogen storage tank 51. The partitions 55 divide the inner cavity space of the hydrogen storage tank 51 to form multiple hydrogen storage chambers 56. A paddle spring rod 57 is rotatably installed on the central axis of the hydrogen storage tank 51. Two centrally symmetrical sealing plates 58 are installed on the paddle spring rod 57 corresponding to the positions of the partitions 55.

[0028] The protective component 6 is fixedly installed outside the hydrogen storage component 5, including a water storage sleeve 61 fixedly connected to the outer wall of the hydrogen storage tank 51, an explosion-proof cover 64 fixedly installed on the top of the hydrogen storage tank 51, and a telescopic explosion-proof plate 610 slidably inserted into the left wall of the explosion-proof layer 53. The water storage sleeve 61 is located on the outer periphery of the explosion-proof layer 53, and the telescopic explosion-proof plate 610 is located between the explosion-proof layer 53 and the water storage sleeve 61. A nitrogen tank 66 is fixedly connected to the left side of the explosion-proof cover 64.

[0029] Preferably, the storage battery 3 can be a lithium battery.

[0030] Furthermore, a hydrogen delivery pipe 510 is fixedly connected between the inner cavity of the hydrogen storage tank 51 and the fuel cell 2, and the hydrogen delivery pipe 510 penetrates the explosion-proof layer 53 and the water storage jacket 61. Using the hydrogen delivery pipe 510, the hydrogen stored in the hydrogen storage tank 51 can directly reach the fuel cell 2 to power the fuel cell 2 to generate electricity.

[0031] Furthermore, two centrally symmetrical through slots 59 are provided on the partition plate 55. The sealing plate 58 is slidably connected to the inner wall of the through slot 59, and the inner wall of the through slot 59 is provided with through holes communicating with the nitrogen chamber 54. The sealing plate 58 seals the through holes, and each nitrogen chamber 54 initially filled with nitrogen is sealed. The presence of the nitrogen chamber 54 increases the outer diameter of the hydrogen storage tank 51, which can effectively buffer the impact of the outside on the hydrogen storage tank 51. When the hydrogen storage tank 51 encounters a greater collision risk, the sealing plate 58 seals the through slots 59, so that the hydrogen in the hydrogen storage tank 51 can be stored in each hydrogen storage chamber 56 in separate sections. The through holes for releasing nitrogen in the nitrogen chamber 54 are exposed as the sealing plate 58 deflects, and the nitrogen in the nitrogen chamber 54 is released to quickly reduce the hydrogen concentration and reduce the risk of explosion.

[0032] Furthermore, the explosion-proof cover 64 is sealed to the top of the explosion-proof layer 53, thereby increasing the protection of the hydrogen storage tank 51 and reducing explosion damage.

[0033] Furthermore, the protective component 6 also includes a slip ring 62 slidably connected in the water storage sleeve 61, a top rod 63 fixedly installed on the top of the slip ring 62, a pressurizing chamber 65 formed in the explosion-proof cover 64 and in conjunction with the paddle spring rod 57, a screw block 67 slidably engaged with the top of the explosion-proof cover 64, the screw block 67 being threadedly connected to the paddle spring rod 57, a spring-loaded locking rod 68 slidably inserted into the left side of the screw block 67, and a locking bead 69 movably engaged with the lower wall of the spring-loaded locking rod 68.

[0034] Furthermore, the bottom valve port of the nitrogen tank 66 is movably abutted against the top rod 63, and a sliding cavity adapted to the telescopic explosion-proof plate 610 is opened on the left wall of the explosion-proof layer 53. A three-way pipe is fixedly connected between the valve port of the nitrogen tank 66, the pressurization chamber 65, and the sliding cavity. The nitrogen tank 66 is connected to the pressurization chamber 65 and the sliding cavity through the three-way pipe. The left side of the explosion-proof layer 53 and the water storage sleeve 61 both include a through-hole corresponding to the hydrogenation panel 52, and the telescopic explosion-proof plate 610 is located on the upper wall of the through-hole.

[0035] When the push rod 63 moves upward to open the nitrogen tank 66, the nitrogen tank 66 automatically releases nitrogen outward through the three-way pipe, squeezing the telescopic explosion-proof plate 610 to move downward to seal the hydrogen filling panel 52 area on the hydrogen storage tank 51, thereby strengthening explosion protection. At the same time, it drives the paddle spring rod 57 to deflect and adjust the protective state of the hydrogen storage component 5, thereby reducing the risk of explosion.

[0036] Furthermore, the left wall of the hydrogen storage tank 51 is provided with a sliding groove for the movement of the locking ball 69. The sliding groove is located between the elastic locking rod 68 and the telescopic explosion-proof plate 610. The lower wall of the elastic locking rod 68 includes an annular groove corresponding to the locking ball 69, and the right wall of the telescopic explosion-proof plate 610 is provided with a locking groove corresponding to the locking ball 69.

[0037] After the telescopic explosion-proof plate 610 moves down to seal the hydrogen filling panel 52 area on the hydrogen storage tank 51, the slot on the telescopic explosion-proof plate 610 aligns perfectly with the retaining bead 69. Subsequently, with the elastic retaining rod 68 moving up, the retaining bead 69 is squeezed into the slot on the telescopic explosion-proof plate 610, thereby restricting the movement of the telescopic explosion-proof plate 610. This provides double protection for the seal of the telescopic explosion-proof plate 610, preventing nitrogen leakage caused by the downward movement of the telescopic explosion-proof plate 610 due to collision deformation of the hydrogen storage tank 51, which would otherwise lead to the failure of the seal of the telescopic explosion-proof plate 610.

[0038] The working principle of the hydrogen storage fuel cell power generation device provided by this invention is as follows: Hydrogen stored in the hydrogen storage tank 51 can be directly delivered to the fuel cell 2 via the hydrogen delivery pipe 510 to generate electricity. When the water storage jacket 61 is subjected to a large external impact, since the water storage jacket 61 is initially filled with water and the slip ring 62 is in a water-sealed position, the water storage jacket 61 deforms, and the water inside is pressurized, exerting an upward force on the slip ring 62. The slip ring 62 then drives the push rod 63 to move upward and open the nitrogen tank 66. The pressurized nitrogen in chamber 66 is automatically released outward through the three-way pipe, compressing the telescopic explosion-proof plate 610 to move downward and seal the hydrogen filling panel 52 area on the hydrogen storage tank 51, enhancing explosion protection. Simultaneously, nitrogen fills the pressurization chamber 65, driving the paddle spring rod 57 to deflect. The paddle spring rod 57 then drives the sealing plate 58 to seal the through groove 59, thus enabling the hydrogen in the hydrogen storage tank 51 to be stored in separate hydrogen storage chambers 56. Meanwhile, the nitrogen outlet of the nitrogen chamber 54 is exposed as the sealing plate 58 deflects, allowing the nitrogen in the nitrogen chamber 54 to be released. The hydrogen is released into the independently separated hydrogen storage chamber 56 to quickly reduce the concentration of hydrogen in the corresponding chamber and reduce the risk of explosion. At the same time, due to the deflection of the paddle spring rod 57, the screw block 67 connected to it is driven to move upward along the explosion-proof cover 64, and also drives the elastic locking rod 68 upward. Since it takes a certain amount of time for the nitrogen to compress the telescopic explosion-proof plate 610 initially, and the locking ball 69 continuously engages with the elastic locking rod 68, the elastic locking rod 68 is subjected to the upward compressive force of the screw block 67, thus accumulating elastic potential energy. When the telescopic explosion-proof plate 610 moves down and completely seals the hydrogen filling panel 52 area on the hydrogen storage tank 51, the slot on the telescopic explosion-proof plate 610 aligns with the locking bead 69. The locking bead 69 is then pressed into the slot on the telescopic explosion-proof plate 610 by the elastic locking rod 68, thereby restricting the movement of the telescopic explosion-proof plate 610. This provides double protection for the sealing of the telescopic explosion-proof plate 610, preventing nitrogen leakage caused by the deformation of the hydrogen storage tank 51 due to impact, which would otherwise cause the telescopic explosion-proof plate 610 to move down and thus fail to seal.

[0039] The present invention has been described in detail above with reference to the accompanying drawings and embodiments. However, the present invention is not limited to the above embodiments, and various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention. All contents not described in detail in the present invention can be derived from existing technologies.

Claims

1. A hydrogen energy storage fuel cell power generation device, the device comprising a mounting cabinet (1), characterized in that, The right side of the inner cavity of the installation cabinet (1) is fixedly installed with a fuel cell (2), a storage battery (3), and an inverter output assembly (4). The fuel cell (2) is electrically connected between the inverter output assembly (4) and the storage battery (3), and the inverter output assembly (4) includes an external power output terminal. The left side of the inner cavity of the installation cabinet (1) is fixedly installed with a hydrogen storage assembly (5). The hydrogen storage assembly (5) includes a hydrogen storage tank (51), a hydrogen filling panel (52) fixedly installed on the left wall of the hydrogen storage tank (51), and an explosion-proof layer (53) fixedly connected to the outside of the hydrogen storage tank (51). The inner cavity of the hydrogen storage tank (51) is connected to the fuel cell (2). Several independent nitrogen chambers (54) are opened on the side wall of the hydrogen storage tank (51). The nitrogen chambers (54) are located between the hydrogen storage tank (51) and the explosion-proof layer (53). The inner cavity of the hydrogen storage tank (51) is connected to the nitrogen chambers (54). 51) Several partitions (55) are fixedly installed in the inner cavity. The partitions (55) divide the inner cavity space of the hydrogen storage tank (51) to form multiple hydrogen storage chambers (56). A paddle spring rod (57) is rotatably installed on the central axis of the hydrogen storage tank (51). A centrally symmetrical sealing plate (58) is installed on the paddle spring rod (57) at the position corresponding to the partition (55). The protective component (6) is fixedly installed outside the hydrogen storage component (5), including a water storage sleeve (61) fixedly connected to the outer wall of the hydrogen storage tank (51), an explosion-proof cover (64) fixedly installed on the top of the hydrogen storage tank (51), and a telescopic explosion-proof plate (610) slidably inserted into the left wall of the explosion-proof layer (53). The water storage sleeve (61) is located on the outer periphery of the explosion-proof layer (53), and the telescopic explosion-proof plate (610) is located between the explosion-proof layer (53) and the water storage sleeve (61). A nitrogen tank (66) is fixedly connected to the left side of the explosion-proof cover (64). A centrally symmetrical through groove (59) is provided on the partition (55), and a sealing plate (58) is slidably connected to the inner wall of the through groove (59), and a through hole communicating with the nitrogen chamber (54) is provided on the inner wall of the through groove (59). The protective component (6) also includes a slip ring (62) slidably connected in the water storage sleeve (61), a top rod (63) fixedly installed on the top of the slip ring (62), a pressurization chamber (65) formed in the explosion-proof cover (64) and in conjunction with the paddle spring rod (57), a screw block (67) slidably engaged on the top of the explosion-proof cover (64), the screw block (67) being threadedly connected to the paddle spring rod (57), a spring-loaded locking rod (68) slidably inserted on the left side of the screw block (67), and a locking ball (69) movably engaged on the lower wall of the spring-loaded locking rod (68). The bottom valve port of the nitrogen tank (66) is movably abutted against the top rod (63). The left wall of the explosion-proof layer (53) is provided with a sliding cavity that is compatible with the telescopic explosion-proof plate (610). A three-way pipe is fixedly connected between the valve port of the nitrogen tank (66), the pressurization chamber (65), and the sliding cavity. The nitrogen tank (66) is connected to the pressurization chamber (65) and the sliding cavity through the three-way pipe.

2. The hydrogen energy storage fuel cell power generation device according to claim 1, characterized in that, The hydrogen storage tank (51) is fixedly connected to the fuel cell (2) by a hydrogen delivery pipe (510), and the hydrogen delivery pipe (510) penetrates the explosion-proof layer (53) and the water storage jacket (61).

3. The hydrogen energy storage fuel cell power generation device according to claim 1, characterized in that, The explosion-proof cover (64) is sealed to the top of the explosion-proof layer (53).

4. A hydrogen energy storage fuel cell power generation device according to claim 1, characterized in that, The explosion-proof layer (53) and the water storage sleeve (61) both have openings on the left side corresponding to the hydrogenation panel (52), and the telescopic explosion-proof plate (610) is located on the upper wall of the opening.

5. A hydrogen energy storage fuel cell power generation device according to claim 1, characterized in that, The left wall of the hydrogen storage tank (51) is provided with a sliding groove for the movement of the locking ball (69). The sliding groove is located between the elastic locking rod (68) and the telescopic explosion-proof plate (610). The lower wall of the elastic locking rod (68) includes an annular groove corresponding to the locking ball (69), and the right wall of the telescopic explosion-proof plate (610) is provided with a locking groove corresponding to the locking ball (69).

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