Hydrogen compensation device in use process of hydrogen fuel cell

Abstract

The utility model discloses a hydrogen compensation device in the use process of a hydrogen fuel cell, which relates to the technical field of hydrogen compensation and comprises a tank body and the hydrogen fuel cell, one end of the tank body is provided with a pressure reducing valve; the pressure reducing valve is connected with the hydrogen fuel cell through a compensation assembly; the compensation assembly comprises a pipeline; one end of the pipeline is hermetically connected with the hydrogen fuel cell; an electromagnetic valve is fixedly mounted at one end of the pipeline; the end, provided with the electromagnetic valve, of the pipeline is connected with the pressure reducing valve through a connecting pipe. When fuel compensation is conducted, the spring in the pipeline is effectively controlled through the electromagnetic valve, power-on and power-off of the spring are achieved, the effect that the spring drives the compensation pipe to move is achieved, and when the compensation pipe moves, the fuel conveyed by the connecting pipe is discharged into a cavity in the pipeline through the exhaust hole in the end of the compensation pipe. And the sealing head is matched with the one-way conical head, so that the fuel in the inner cavity of the pipeline is conveyed into the hydrogen fuel cell, and the hydrogen fuel in the hydrogen fuel cell is effectively compensated.

Description

Technical Field

[0001] The utility model specifically relates to the technical field of hydrogen compensation, in particular to a hydrogen compensation device during the use of a hydrogen fuel cell. Background Art

[0002] A hydrogen fuel cell is a power generation device that utilizes hydrogen energy through chemical reactions. It only generates water during operation, achieving true zero emissions. Compared with the traditional method of burning fuel, hydrogen fuel cells have higher energy conversion efficiency and lower emissions, becoming one of the important technologies for future environmentally friendly energy. Its basic principle is the reverse reaction of water electrolysis, supplying hydrogen and oxygen to the anode and cathode respectively. After hydrogen diffuses outward through the anode and reacts with the electrolyte, it releases electrons through an external load to reach the cathode. It is a new type of battery.

[0003] At present, when traditional hydrogen fuel cells are in use, the tank is directly connected to the battery. In this way, when the hydrogen fuel in the battery is used up, the battery needs to be refilled with dye. This will affect the use of the battery when the battery is out of fuel, causing damage to the battery and reducing the battery life.

[0004] After searching, Chinese patent publication number CN201710498008.9 discloses a storage system and method for a fuel cell stack; including a stack, a hydrogen system, an air system and a nitrogen automatic pressure replenishing device, the hydrogen system and the air system are arranged in parallel on the stack; the nitrogen automatic pressure replenishing device automatically compensates for the nitrogen pressure in the stack;

[0005] When the structure in the above patent is in use, it is connected to the electric propeller through the storage tank. Although this can realize the compensation of the fuel in the electric propeller, after the fuel in the storage tank is used up, it is necessary to effectively add the fuel in the storage tank when the electric propeller stops working, which will affect the continuous operation of the electric propeller during use, and when the electric propeller starts working again, it will consume more fuel. In addition, when the structure in the above patent is performing fuel compensation, the fuel that cannot be consumed inside cannot be recycled, so when it is used, fuel will accumulate inside the electric propeller. In this way, the purity of the fuel inside the electric propeller cannot be effectively guaranteed during long-term use, which will affect the service life of the electric propeller.

[0006] In view of the above situation, we provide a hydrogen compensation device for use in a hydrogen fuel cell, wherein a compensation device is provided between the tank body and the hydrogen fuel cell, so that during use, the spring in the pipeline is controlled by an electromagnetic valve to realize the movement of the compensation tube, and when the compensation tube moves, the fuel transported through the connecting tube is transmitted to the inside of the pipeline, and then the connection and closing between the pipeline and the hydrogen fuel cell are realized through the cooperation between the sealing head and the one-way conical head, so as to realize the compensation of the hydrogen fuel in the hydrogen fuel cell, and when performing compensation, the fuel inside the hydrogen fuel cell that is not consumed in time enters the hydrogen fuel discharge storage tank through the squeezing of the new fuel, and the hydrogen fuel discharge storage tank is connected to the connecting flange through the circulation pipe, and when the compensation assembly performs hydrogen compensation, a negative pressure is formed in the connecting flange connected to the pipeline, so that the fuel discharged from the hydrogen fuel storage tank is extracted into the connecting flange through the circulation pipe and then mixed with the new fuel and enters the hydrogen fuel cell again, so as to realize the compensation and the effect of fuel recycling. Utility Model Content

[0007] The purpose of the utility model is to provide a hydrogen compensation device during the use of a hydrogen fuel cell, which controls the spring in the pipeline through an electromagnetic valve to realize the movement of the compensation tube. When the compensation tube moves, the fuel transported by the connecting tube is transmitted to the inside of the pipeline, and then the connection and closing between the pipeline and the hydrogen fuel cell are realized through the cooperation between the sealing head and the one-way conical head, so as to realize the compensation of the hydrogen fuel in the hydrogen fuel cell; while carrying out the hydrogen compensation, the effect of hydrogen recycling can also be realized through the hydrogen fuel discharge storage tank and the circulation pipe, so as to solve the problems of the above-mentioned background technology.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A hydrogen compensation device for a hydrogen fuel cell during use, comprising a tank body and a hydrogen fuel cell; wherein a pressure reducing valve is installed at one end of the tank body; the pressure reducing valve is connected to the hydrogen fuel cell through a compensation component; thus, when hydrogen compensation is performed, the pressure reducing valve is used to effectively reduce the pressure of the hydrogen released from the tank body, thereby preventing the occurrence of excessive pressure;

[0010] As a further technical solution of the utility model, the compensation component includes a pipeline; one end of the pipeline is sealed and connected to the hydrogen fuel cell; a solenoid valve is fixedly installed on one end of the pipeline; the pipeline is connected to the pressure reducing valve through a connecting pipe at the end where the solenoid valve is installed; the spring inside the pipeline is effectively controlled by powering on or off the solenoid valve, so that the spring drives the compensation pipe to move, and the hydrogen inside the tank is transmitted to the inside of the hydrogen fuel cell;

[0011] As a further technical solution of the utility model, a one-way conical head is arranged inside one end of the pipeline close to the hydrogen fuel cell, and a conical hole is opened in the center of the one-way conical head; thus, when the compensation tube moves forward, the conical head and the conical hole cooperate with each other, effectively preventing the backflow of hydrogen during the compensation of hydrogen, preventing the volume of hydrogen inside the hydrogen fuel cell from being affected, thereby effectively ensuring the service life of the hydrogen fuel cell;

[0012] As a further technical solution of the utility model, the one-way conical head cooperates with the sealing head; the sealing head is fixedly installed at the end of the compensation tube; the hydrogen moves forward and backward through the compensation tube driven by the spring, so that in the process of the compensation tube moving forward and backward, the hydrogen inside the tank body is transmitted to the hydrogen fuel cell.

[0013] As a further technical solution of the utility model, an exhaust hole is provided at one end of the compensating pipe close to the sealing head; hydrogen is transmitted to the inside of the other end of the pipeline through the exhaust hole, and hydrogen is transmitted from the conical hole to the connecting flange through the extrusion of the conical head;

[0014] As a further technical solution of the utility model, the interior of the pipeline near one end of the connecting pipe is arranged in a stepped shape, and a spring is arranged in the stepped interior; the spring is connected with the compensation pipe; the end of the pipeline away from the connecting pipe is also fixedly provided with an extrusion gas cylinder; the extrusion gas cylinder is arranged in a conical shape; in this way, when the hydrogen is compensated, the hydrogen inside the one-way conical head and the extrusion gas cylinder is pushed forward to the inside of the hydrogen fuel cell through the extrusion of the sealing head; the hydrogen reacts with the oxygen in the air to generate water and generate electricity;

[0015] As a further technical solution of the utility model, the end of the hydrogen fuel cell is provided with two symmetrical connecting flanges, one of which is sealed and connected to the compensation component, and the other is connected to the exchanger through an electric energy transmission line; the exchanger is connected to the motor through a wire; the electric energy generated inside the hydrogen fuel cell is transmitted to the exchanger through the electric energy transmission line, and then transmitted to the motor through the exchanger to realize the motor drive device;

[0016] As a further technical solution of the utility model, an air duct is fixedly installed on the top of the hydrogen fuel cell; the end of the air duct away from the hydrogen fuel cell is connected to the fan; a reaction is generated inside the hydrogen fuel cell, which requires hydrogen to react with oxygen in the air, and is transported to the hydrogen fuel cell reactor through the fan and the air duct, thereby generating electricity inside the hydrogen fuel cell reactor.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. In the utility model, when in use, the tank is connected to the hydrogen fuel cell through a compensation assembly, and a pressure reducing valve is installed at the end of the tank to prevent the connection pipe from breaking when the pressure inside the tank is too high, thereby effectively ensuring the connection between the tank and the hydrogen fuel cell;

[0019] 2. The utility model, when performing fuel compensation, effectively controls the spring inside the pipeline through the solenoid valve to realize the power on and off of the spring, and realizes the spring drives the compensation pipe to move. When the compensation pipe moves, the exhaust hole at the end of the compensation pipe discharges the fuel transmitted by the connecting pipe into the cavity inside the pipeline, and then through the cooperation between the sealing head and the one-way conical head, the hydrogen is transmitted to the hydrogen fuel cell by squeezing the gas cylinder fuel, so as to realize the effective compensation of the hydrogen fuel in the hydrogen fuel cell;

[0020] 3. The utility model closes the one-way conical head and the sealing head inside the pipeline when adding fuel inside the tank, so that the normal operation of the hydrogen fuel cell will not be affected when adding fuel, and the working efficiency of the hydrogen fuel cell is effectively improved;

[0021] 4. In the utility model, when the compensation device is in use, the electromagnetic valve drives the spring inside the pipeline to move, thereby realizing the movement of the compensation tube. In the process of the compensation tube moving back and forth, a negative pressure is formed inside the connecting flange, thereby realizing the effective extraction of hydrogen gas discharged from the hydrogen fuel storage tank, and transporting air to the hydrogen fuel cell through the air duct and the fan, so that the hydrogen gas reacts with the oxygen in the air to produce water and electric energy. The electric energy is transmitted to the exchanger through the electric energy transmission line, and the exchanger transmits the converted electric energy to the motor through the wire, thereby realizing the driving of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0023] Figure 2 This utility model Figure 1 Another perspective structural diagram of .

[0024] Figure 3 This utility model Figure 1 Side view of the compensation component.

[0025] Figure 4 This utility model Figure 3 AA section view.

[0026] In the figure: 1-tank body, 2-pressure reducing valve, 3-hydrogen fuel cell, 4-compensation component, 40-pipeline, 41-solenoid valve, 42-connecting pipe, 43-one-way conical head, 44-sealing head, 45-exhaust hole, 46-compensation pipe, 47-spring, 48-extrusion gas cylinder, 5-electric energy transmission line, 6-exchanger, 7-connecting flange, 8-air duct, 9-fan, 10-motor, 11-wire. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-4 In the embodiment of the utility model, a hydrogen compensation device during the use of a hydrogen fuel cell comprises a tank body 1 and a hydrogen fuel cell 3; wherein a pressure reducing valve 2 is installed at one end of the tank body 1; the pressure reducing valve 2 is connected to the hydrogen fuel cell 3 through a compensation component 4;

[0029] The compensation component 4 includes a pipeline 40; one end of the pipeline 40 is sealed and connected to the hydrogen fuel cell 3; a solenoid valve 41 is fixedly installed at one end of the pipeline 40; the pipeline 40 is connected to the pressure reducing valve 2 through a connecting pipe 42 at the end where the solenoid valve 41 is installed;

[0030] Specifically, a one-way conical head 43 is provided inside the end of the pipe 40 close to the hydrogen fuel cell 3, and a conical hole is opened in the center of the one-way conical head 43;

[0031] By adopting the above technical solution, when in use, the tank body 1 is connected to the hydrogen fuel cell 3 through the compensation component 4, and a pressure reducing valve 2 is installed at the end of the tank body 1 to prevent the tank body 1 from being broken with the connecting pipe 42 when the pressure inside the tank body 1 is too high, thereby effectively ensuring the connection between the tank body 1 and the hydrogen fuel cell 3;

[0032] The one-way conical head 43 cooperates with the sealing head 44; the sealing head 44 is fixedly installed at the end of the compensation tube 46;

[0033] In this embodiment, an exhaust hole 45 is formed at one end of the compensating tube 46 close to the sealing head 44;

[0034] By adopting the above technical solution, when performing fuel compensation, the spring 47 inside the pipeline 40 is effectively controlled by the solenoid valve 41 to realize the power on and off of the spring 47, so that the spring 47 drives the compensation tube 46 to move. When the compensation tube 46 moves, the exhaust hole 45 at the end of the compensation tube 46 discharges the fuel transmitted by the connecting tube 42 into the cavity inside the pipeline 40, and then through the cooperation between the sealing head 44 and the one-way conical head 43, the hydrogen fuel in the inner cavity of the pipeline 40 is squeezed and transmitted to the hydrogen fuel cell 3 through the extrusion gas cylinder 48, thereby realizing effective compensation of the hydrogen fuel in the hydrogen fuel cell 3.

[0035] In this embodiment, the interior of the pipeline 40 near the end of the connecting pipe 42 is arranged in a stepped shape, and a spring 47 is arranged in the stepped interior; the spring 47 is connected with the compensation pipe 46; the end of the pipeline 40 away from the connecting pipe 42 is also fixedly provided with an extrusion gas delivery cylinder 48; the extrusion gas delivery cylinder 48 is arranged in a conical shape;

[0036] The end of the hydrogen fuel cell 3 is provided with two symmetrical connecting flanges 7, one of which is sealedly connected to the compensation component 4, and the other connecting flange 7 is connected to the exchanger 6 through the power transmission line 5; the exchanger 6 is connected to the motor 10 through the wire 11;

[0037] By adopting the above technical solution, when adding fuel inside the tank body 1, the one-way conical head 43 and the sealing head 44 inside the pipe 40 are closed, so that when adding fuel, the normal operation of the hydrogen fuel cell 3 will not be affected, and the working efficiency of the hydrogen fuel cell 3 is effectively improved;

[0038] Furthermore, an air duct 8 is fixedly installed on the top of the hydrogen fuel cell 3; the end of the air duct 8 away from the hydrogen fuel cell 3 is connected to the fan 9;

[0039] By adopting the above technical solution, when the reaction is carried out inside the hydrogen fuel cell 3, hydrogen needs to react with oxygen in the air. The reaction between hydrogen and oxygen produces water and electric energy. The electric energy is transmitted to the exchanger 6 through the electric energy transmission line 5, and then the electric energy is transmitted to the motor 10 through the conductor 11 through the exchanger 6, so as to realize the driving of the motor 10.

[0040] The working principle of the utility model is: when in use, the tank body 1 is connected to the hydrogen fuel cell 3 through the compensation component 4, and a pressure reducing valve 2 is installed at the end of the tank body 1 to prevent the tank body 1 from breaking with the connecting pipe 42 when the pressure inside the tank body 1 is too high, so as to effectively ensure the connection between the tank body 1 and the hydrogen fuel cell 3;

[0041] When performing fuel compensation, the solenoid valve 41 effectively controls the spring 47 inside the pipeline 40 to realize the power on and off of the spring 47, so that the spring 47 drives the compensation tube 46 to move. When the compensation tube 46 moves, the exhaust hole 45 at the end of the compensation tube 46 discharges the fuel transmitted by the connecting tube 42 into the cavity inside the pipeline 40, and then the sealing head 44 and the one-way conical head 43 cooperate to squeeze the hydrogen fuel in the inner cavity of the pipeline 40 through the extrusion gas cylinder 48 and transmit it to the hydrogen fuel cell 3, so as to realize effective compensation of the hydrogen fuel in the hydrogen fuel cell 3;

[0042] When performing fuel compensation, the solenoid valve 41 effectively controls the spring 47 inside the pipeline 40 to realize the power on and off of the spring 47, so that the spring 47 drives the compensation tube 46 to move. When the compensation tube 46 moves, the exhaust hole 45 at the end of the compensation tube 46 discharges the fuel transmitted by the connecting tube 42 into the cavity inside the pipeline 40, and then the sealing head 44 and the one-way conical head 43 cooperate to squeeze the hydrogen fuel in the inner cavity of the pipeline 40 through the extrusion gas cylinder 48 and transmit it to the hydrogen fuel cell 3, so as to realize effective compensation of the hydrogen fuel in the hydrogen fuel cell 3;

[0043] When adding fuel to the tank 1, the one-way conical head 43 and the sealing head 44 inside the pipe 40 are closed, so that the normal operation of the hydrogen fuel cell 3 is not affected when adding fuel, and the working efficiency of the hydrogen fuel cell 3 is effectively improved;

[0044] When the reaction takes place inside the hydrogen fuel cell 3 , hydrogen needs to react with oxygen in the air. The reaction between hydrogen and oxygen produces water and electric energy. The electric energy is transmitted to the exchanger 6 through the electric energy transmission line 5 , and then the electric energy is transmitted to the motor 10 through the conductor 11 through the exchanger 6 , thereby driving the motor 10 .

[0045] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0046] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A hydrogen compensation device during the use of a hydrogen fuel cell, characterized in that: It comprises a tank body (1) and a hydrogen fuel cell (3); wherein a pressure reducing valve (2) is installed at one end of the tank body (1); and the pressure reducing valve (2) is connected to the hydrogen fuel cell (3) via a compensation component (4); The compensation component (4) comprises a pipeline (40); one end of the pipeline (40) is sealedly connected to the hydrogen fuel cell (3); a solenoid valve (41) is fixedly installed at one end of the pipeline (40); and the pipeline (40) is connected to the pressure reducing valve (2) through a connecting pipe (42) at the end where the solenoid valve (41) is installed.

2. The hydrogen compensation device during use of a hydrogen fuel cell according to claim 1, characterized in that: A one-way conical head (43) is arranged inside one end of the pipeline (40) close to the hydrogen fuel cell (3), and a conical hole is opened in the center of the one-way conical head (43).

3. The hydrogen compensation device during use of a hydrogen fuel cell according to claim 2, characterized in that: The one-way conical head (43) cooperates with the sealing head (44); the sealing head (44) is fixedly installed at the end of the compensation tube (46).

4. The hydrogen compensation device during use of a hydrogen fuel cell according to claim 3, characterized in that: An exhaust hole (45) is provided at one end of the compensating tube (46) close to the sealing head (44).

5. The hydrogen compensation device during use of a hydrogen fuel cell according to claim 4, characterized in that: The interior of the pipeline (40) near one end of the connecting pipe (42) is arranged in a stepped shape, and a spring (47) is arranged in the stepped interior; the spring (47) is connected to the compensation pipe (46); an extrusion gas delivery cylinder (48) is fixedly arranged at one end of the pipeline (40) away from the connecting pipe (42); the extrusion gas delivery cylinder (48) is arranged in a conical shape.

6. The hydrogen compensation device during use of a hydrogen fuel cell according to claim 2, characterized in that: The end of the hydrogen fuel cell (3) is provided with two symmetrical connecting flanges (7), one of which is sealedly connected to the compensation component (4), and the other connecting flange (7) is connected to the exchanger (6) via an electric energy transmission line (5); the exchanger (6) is connected to the motor (10) via a wire (11).

7. The hydrogen compensation device during use of a hydrogen fuel cell according to claim 2, characterized in that: An air duct (8) is also fixedly installed on the top of the hydrogen fuel cell (3); the end of the air duct (8) away from the hydrogen fuel cell (3) is connected to a fan (9).

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