Drainage device of hydrogen fuel cell

Abstract

The utility model discloses a drainage device of a hydrogen fuel cell, and relates to the related technical field of hydrogen fuel cells. The cooling device comprises a battery main body, a cooling box, a miniature air pump and a cooling bin, the cooling box is fixed at a short edge of the bottom of the battery main body, the cooling box extends out of the outer side of the battery main body in an overlook view, the cooling bin is fixed at the top, extending out of the outer side of the battery main body, of the cooling box, and the top end of the cooling bin is higher than the top of the battery main body. An oxygen pipe is fixedly communicated between the center line, parallel to the short edge, of the top of the battery body and the cooling bin, a micro air pump is fixed to the top of the battery body between the oxygen pipe and the cooling bin, and fixing pipes are evenly fixed to one side of the cooling box in a rectangular array in a penetrating mode. Through the arrangement of the battery main body, the cooling box, the micro air pump and the cooling bin, the problems that the drainage device of the hydrogen fuel battery is insufficient in drainage, relatively low in oxygen circulation efficiency and not high in drainage efficiency are solved.

Description

Technical Field

[0001] This utility model belongs to the technical field of hydrogen fuel cells, and in particular relates to a drainage device for hydrogen fuel cells. Background Technology

[0002] Hydrogen fuel cells achieve energy conversion through an electrochemical process. Hydrogen gas decomposes into electrons and hydrogen ions (protons) under the action of an anode catalyst. Protons pass through a proton exchange membrane to the cathode, where they react with oxygen to produce water and heat. Electrons flow from the anode to the cathode through an external circuit, generating electrical energy. The energy conversion rate is high, typically exceeding 50%, and the combined thermoelectric efficiency can reach over 90%, offering higher energy utilization efficiency compared to traditional fossil fuel power generation. Water is a byproduct, and during operation, the water produced in the battery needs to be drained to maintain a suitable humidity level. However, it still has the following drawbacks in practical use:

[0003] The drainage device of a hydrogen fuel cell needs to release the remaining oxygen during the drainage process. However, during the drainage process, the oxygen will be cooled and the water will condense. After the water is discharged, the efficiency is insufficient due to only preliminary condensation, resulting in insufficient drainage of the fuel cell.

[0004] Secondly, the drainage device will pass through a large amount of excess oxygen from the reaction. During the operation, the oxygen will continuously circulate. However, the oxygen circulation efficiency in the drainage device is low, which will result in insufficient drainage efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a drainage device for hydrogen fuel cells. By setting up a battery body, a cooling box, a micro air pump and a cooling chamber, it solves the problems of insufficient drainage, low oxygen circulation efficiency and low drainage efficiency of hydrogen fuel cells.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a drainage device for a hydrogen fuel cell, comprising a battery body, a cooling tank, a micro air pump, and a cooling chamber. The cooling tank is fixed to one short side of the bottom of the battery body. From a top-down view, the cooling tank extends beyond the outer side of the battery body, and a cooling chamber is fixed to the top of the cooling tank extending beyond the outer side of the battery body. The top of the cooling chamber is higher than the top of the battery body. An oxygen pipe is fixedly connected between the center line of the top of the battery body (parallel to the short side) and the cooling chamber. A micro air pump is fixed to the top of the battery body between the oxygen pipe and the cooling chamber. A rectangular array of fixed pipes is uniformly arranged along one side of the cooling tank. During operation, the battery body generates water and electricity when hydrogen and oxygen pass through it. During operation, the remaining oxygen and water vapor from the battery body are introduced into the cooling tank after use. After cooling in the cooling tank, the water rises to the cooling chamber for further cooling, ensuring complete liquefaction of the water, which is then transported to the oxygen pipe by the micro air pump.

[0008] Furthermore, a connecting wire is symmetrically fixed through the middle of the bottom of the battery body, a hydrogen pipe is fixedly connected to the top of the battery body at a position symmetrical to the oxygen pipe, and a recovery pipe is fixedly connected to the bottom of the battery body. The recovery pipe corresponds to the position of the hydrogen pipe. The electrical energy generated in the battery body is transmitted to the connecting wire and then to the device that uses the electrical energy. The hydrogen pipe inputs hydrogen into the battery body and is recovered and transported to the next production equipment through the recovery pipe.

[0009] Furthermore, a connecting port is provided at the top of the cooling box at the bottom of the cooling chamber. An interface is fixedly connected to the top of the cooling box at a position symmetrical to the connecting port, and the interface is fixed to the bottom of the battery body. The connecting port on the cooling chamber collects the remaining oxygen after use from the battery body.

[0010] Furthermore, a water receiving chamber is fixedly connected to the center of the bottom of the cooling box, and a drain pipe is fixedly connected to the center of the bottom of the water receiving chamber. An electrically controlled valve is fixed around the drain pipe. When the cooling box is working, the water receiving chamber receives condensate and then transports it to the drain pipe for discharge.

[0011] Furthermore, the input end of the micro air pump is fixedly connected to an air inlet pipe, and the end of the air inlet pipe away from the micro air pump is fixedly connected to a cooling chamber. The output end of the micro air pump is fixedly connected to an exhaust pipe, and the end of the exhaust pipe away from the micro air pump is fixedly connected to the periphery of the oxygen pipe. When the micro air pump is working, the air inlet pipe inputs oxygen from the cooling chamber into it, and then discharges it into the oxygen pipe through the exhaust pipe.

[0012] Furthermore, the cooling chamber is fixed to the end of the battery body, and a heat sink is fixed through the side of the cooling chamber away from the battery body. The side of the heat sink away from the battery body is flush with the side of the cooling chamber away from the battery body. The heat sink is hollow inside and has an opening on the side away from the battery body. When the cooling chamber is working, the heat sink increases the heat dissipation efficiency.

[0013] This utility model has the following beneficial effects:

[0014] This invention solves the problem of insufficient drainage in hydrogen fuel cell drainage devices by setting up a battery body, a cooling box, and a cooling chamber. After oxygen is used in the battery body, excess oxygen is transported to the interface on the cooling box and then into the cooling box. During the process of oxygen passing through the cooling box, air is transported to a fixed pipe and passes through the fixed pipe to fully cool the oxygen, producing condensate. After the oxygen rises, it is transported to the cooling chamber. During the rise in the cooling chamber, the air passes through the inside of the heat sink, increasing the heat dissipation efficiency. After the oxygen is fully cooled during the rise, the water in the oxygen condenses and then falls into the water collection chamber, making the drainage of the hydrogen fuel cell drainage device more complete.

[0015] This invention solves the problems of low oxygen circulation efficiency and insufficient drainage efficiency by setting up a battery body, a micro air pump, and a cooling chamber. After the oxygen in the cooling chamber is cooled, it rises and the micro air pump is activated. The air inlet pipe draws out the oxygen from the cooling chamber, compresses it, and delivers it to the exhaust pipe and then to the oxygen pipe. From there, it is delivered to the oxygen area inside the battery body, thus circulating the oxygen. During operation, the oxygen can be actively circulated conveniently, accelerating drainage and resulting in higher oxygen circulation and drainage efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A three-dimensional view of the assembly structure of a drainage device for a hydrogen fuel cell;

[0018] Figure 2 A three-dimensional structural diagram of the battery body;

[0019] Figure 3 This is a three-dimensional structural view of the cooling box;

[0020] Figure 4 A three-dimensional structural diagram of a miniature air pump;

[0021] Figure 5 This is a three-dimensional view of the cooling chamber after it has been partially cut open.

[0022] Figure label:

[0023] 1. Battery body; 101. Connecting wire; 102. Hydrogen pipe; 103. Recovery pipe; 104. Oxygen pipe; 2. Cooling tank; 201. Interface; 202. Connecting port; 203. Fixing pipe; 204. Water inlet; 205. Drain pipe; 206. Electrically controlled valve; 3. Miniature air pump; 301. Air inlet pipe; 302. Exhaust pipe; 4. Cooling tank; 401. Heat sink. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Specific Implementation Example 1

[0025] Please see Figure 1-5 This utility model relates to a drainage device for a hydrogen fuel cell, comprising a battery body 1, a cooling tank 2, a micro air pump 3, and a cooling chamber 4. The cooling tank 2 is fixed to one short side of the bottom of the battery body 1. During operation, the battery body 1 generates electricity after passing through hydrogen and oxygen. Excess oxygen used within the battery body 1 enters the cooling tank 2. From a top-down view, the cooling tank 2 extends beyond the battery body 1, and the cooling chamber 4 is fixed to the top of the cooling tank 2 extending beyond the battery body 1. Oxygen that has undergone preliminary cooling in the cooling tank 2 is transported to the cooling chamber 4 for further cooling. The top of the cooling chamber 4 is higher than the top of the battery body 1. An oxygen pipe 104 is fixedly connected between the center line parallel to the short side of the top of the main body 1 and the cooling chamber 4. The top of the oxygen pipe 104 is connected to the oxygen delivery equipment in the car to deliver oxygen to the battery main body 1. A micro air pump 3 is fixed on the top of the battery main body 1 between the oxygen pipe 104 and the cooling chamber 4. When the micro air pump 3 is working, it pumps the oxygen that has been further cooled in the cooling chamber 4 to the oxygen pipe 104. A fixed pipe 203 is fixedly connected in a rectangular array on one side of the cooling box 2. When the fixed pipe 203 is working, after the air passes through the fixed pipe 203, it cools down the oxygen in the cooling box 2, so that the moisture in the oxygen cools down and condenses after the oxygen is recovered.

[0026] Specifically, a power connection wire 101 is symmetrically and fixedly connected to the middle of the bottom of the battery body 1. A hydrogen pipe 102 is fixedly connected to the top of the battery body 1 at a position symmetrical to that of the oxygen pipe 104. A recovery pipe 103 is fixedly connected to the bottom of the battery body 1. The recovery pipe 103 corresponds to the position of the hydrogen pipe 102. The power connection wire 101 of the battery body 1 outputs the electrical energy generated therein. The top end of the hydrogen pipe 102 is fixedly connected to the pipeline for pumping hydrogen. The bottom end of the recovery pipe 103 is connected to the equipment for recovering hydrogen. So that during operation, hydrogen is transported into the hydrogen pipe 102, then into the battery body 1, generates electrical energy, and then is transported to the recovery pipe 103.

[0027] Furthermore, a connecting port 202 is provided on the top of the cooling box 2 at the bottom of the cooling chamber 4. An interface 201 is fixedly connected to the top of the cooling box 2 at a position symmetrical to the connecting port 202, and the interface 201 is fixedly connected to the bottom of the battery body 1. When the cooling box 2 is working, the connecting port 202 on it is connected to the cooling chamber 4, and the interface 201 delivers the oxygen that needs to be recovered after use in the battery body 1 to the cooling box 2.

[0028] Furthermore, a water receiving chamber 204 is fixedly connected to the center of the bottom of the cooling tank 2, and a drain pipe 205 is fixedly connected to the center of the bottom of the water receiving chamber 204. The bottom end of the drain pipe 205 is connected to the pipeline of the drainage equipment. An electric control valve 206 is fixed around the drain pipe 205. When the cooling tank 2 is working, the water receiving chamber 204 is also working. The cooled water in the cooling tank 2 collects into the water receiving chamber 204 and falls into the bottom of the water receiving chamber 204. It is then discharged into the drainage equipment through the drain pipe 205. The electric control valve 206 controls the flow of the drain pipe 205.

[0029] Furthermore, the cooling chamber 4 is fixed to the end of the battery body 1, and a heat sink 401 is fixed through the side of the cooling chamber 4 away from the battery body 1. The side of the heat sink 401 away from the battery body 1 is flush with the side of the cooling chamber 4 away from the battery body 1. The heat sink 401 is hollow inside, and the side of the heat sink 401 away from the battery body 1 is open. When the cooling chamber 4 is working, the heat sink 401 is hollow and the side flush with the surface of the cooling chamber 4 is open, which increases the heat dissipation area and accelerates the heat dissipation efficiency of the oxygen passing through the cooling chamber 4.

[0030] The operation process of this embodiment is as follows: During operation, hydrogen gas is first delivered to the battery body 1 through hydrogen pipe 102, and simultaneously oxygen gas is delivered to the battery body 1 through oxygen pipe 104. Electrical energy is generated within the battery body 1 and transmitted to the electrical device via connecting wire 101. After the hydrogen gas is used within the battery body 1, excess hydrogen gas is delivered to the recovery pipe 103 and output to a hydrogen recovery device. After the oxygen gas is used within the battery body 1, excess oxygen gas is delivered to the interface 201 on the cooling box 2 and then to the cooling box 2. The oxygen passes through the cooling box 2... In the process, air is delivered to the fixed pipe 203 and passes through it, which fully cools the oxygen and produces condensate. After the oxygen rises, it is delivered to the cooling chamber 4. During the ascent in the cooling chamber 4, the air passes through the heat sink 401, which increases the heat dissipation efficiency. After the oxygen is fully cooled during the ascent, the water in the oxygen condenses and falls into the water receiving chamber 204. The water then collects at the bottom of the water receiving chamber 204 and is delivered to the drain pipe 205. The electric control valve 206 on the drain pipe 205 is opened to drain the water from the water receiving chamber 204. Specific Implementation Example 2

[0031] Please see Figure 1 , 2 4, 5. Based on the specific embodiment one, the input end of the micro air pump 3 is fixedly connected to the air inlet pipe 301, and the end of the air inlet pipe 301 away from the micro air pump 3 is fixedly connected to the cooling chamber 4. The output end of the micro air pump 3 is fixedly connected to the exhaust pipe 302, and the end of the exhaust pipe 302 away from the micro air pump 3 is fixedly connected to the periphery of the oxygen pipe 104. When the micro air pump 3 is working, it draws oxygen from the cooling chamber 4 through the air inlet pipe 301, compresses it, and then delivers it to the exhaust pipe 302 and the oxygen pipe 104. The oxygen is then delivered to the oxygen area in the battery body 1 through the oxygen pipe 104, so that the oxygen is circulated.

[0032] The operation process of this embodiment is as follows: During operation, when the oxygen in the cooling chamber 4 rises after cooling, the micro air pump 3 is started, the air inlet pipe 301 draws out the oxygen in the cooling chamber 4, and after being compressed by the micro air pump 3, it is delivered to the exhaust pipe 302 and then to the oxygen pipe 104. It is then delivered to the oxygen area in the battery body 1 through the oxygen pipe 104, so that the oxygen is circulated. During operation, the oxygen can be actively circulated in a convenient way to accelerate drainage.

[0033] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A drain device of a hydrogen fuel cell, comprising a cell main body (1), a cooling box (2), a micro air pump (3), and a cooling compartment (4), characterized in that: A cooling box (2) is fixed at one short side of the bottom of the battery body (1). From a top view, the cooling box (2) extends out of the battery body (1), and a cooling chamber (4) is fixed at the top of the cooling box (2) extending out of the battery body (1). The top of the cooling chamber (4) is higher than the top of the battery body (1). An oxygen pipe (104) is fixedly connected between the center line of the top of the battery body (1) parallel to the short side and the cooling chamber (4). A micro air pump (3) is fixed at the top of the battery body (1) between the oxygen pipe (104) and the cooling chamber (4). A fixed pipe (203) is fixedly connected in a rectangular array on one side of the cooling box (2).

2. The water drain device for a hydrogen fuel cell according to claim 1, characterized by: A power connection wire (101) is symmetrically fixed through the middle of the bottom of the battery body (1). A hydrogen pipe (102) is fixedly connected to the top of the battery body (1) at a position symmetrical to that of the oxygen pipe (104). A recovery pipe (103) is fixedly connected to the bottom of the battery body (1). The recovery pipe (103) corresponds to the position of the hydrogen pipe (102).

3. The drain apparatus of a hydrogen fuel cell according to claim 1, characterized by: The cooling box (2) at the bottom of the cooling chamber (4) has a connecting port (202) at the top. The top of the cooling box (2) is symmetrically connected to the connecting port (202) with an interface (201), and the interface (201) is fixedly connected to the bottom of the battery body (1).

4. The water drain device of a hydrogen fuel cell according to claim 1, characterized by: The bottom center of the cooling tank (2) is fixedly connected to a water receiving chamber (204), the bottom center of the water receiving chamber (204) is fixedly connected to a drain pipe (205), and an electric control valve (206) is fixedly connected to the periphery of the drain pipe (205).

5. The water drain device of a hydrogen fuel cell according to claim 1, characterized by: The input end of the micro air pump (3) is fixedly connected to an air inlet pipe (301), and the end of the air inlet pipe (301) away from the micro air pump (3) is fixedly connected to a cooling chamber (4). The output end of the micro air pump (3) is fixedly connected to an exhaust pipe (302), and the end of the exhaust pipe (302) away from the micro air pump (3) is fixedly connected to the periphery of an oxygen pipe (104).

6. The water drain device of a hydrogen fuel cell according to claim 1, characterized by: The cooling chamber (4) is fixed to the end of the battery body (1), and a heat sink (401) is fixed through the side of the cooling chamber (4) away from the battery body (1). The side of the heat sink (401) away from the battery body (1) is flush with the side of the cooling chamber (4) away from the battery body (1). The heat sink (401) is hollow inside, and the side of the heat sink (401) away from the battery body (1) is open.

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