CN215680742U

CN215680742U - Solid oxide fuel cell stack

Info

Publication number: CN215680742U
Application number: CN202122190208.2U
Authority: CN
Inventors: 孙大强; 左晨东; 郭少军; 孔彪; 李现红; 孔德龙
Original assignee: Shandong Sacred Sun Power Sources Co Ltd
Current assignee: Shandong Sacred Sun Power Sources Co Ltd
Priority date: 2021-09-10
Filing date: 2021-09-10
Publication date: 2022-01-28
Anticipated expiration: 2031-09-10

Abstract

The utility model provides a solid oxide fuel cell stack. In the technical scheme, a plurality of battery unit bodies are densely arranged on a fixing frame, and the fixing frame is directly carried on a heat conducting plate made of metal; a chassis with a snake-shaped groove is arranged below the heat conducting plate, so that the upper battery unit body is supported, and a heat dissipation structure is constructed by depending on an interlayer; the heat dissipation structure takes a coiled pipe as a main body, and a joint at the end part of the coiled pipe extends out of a through hole in the side wall of the box body and is connected with a water source, so that a continuously flowing cooling water environment is constructed in the coiled pipe; the serpentine pipe is embedded in a serpentine groove on the chassis and is tightly contacted with the heat conducting plate, so that the water cooling and heat dissipation effects are achieved on the battery unit body above the serpentine pipe; meanwhile, the electromagnetic valve is additionally arranged on the coiled pipe, so that the flow speed of cooling water can be controlled, and the cooling efficiency can be controlled. The utility model effectively overcomes the technical defect of poor heat dissipation of the cell stack in a high integration mode, and has good popularization prospect.

Description

Solid oxide fuel cell stack

Technical Field

The utility model relates to the field of fuel cells, in particular to a solid oxide fuel cell stack.

Background

A fuel cell is a chemical device that directly converts chemical energy of fuel into electrical energy, and is also called an electrochemical generator. It is a fourth power generation technology following hydroelectric power generation, thermal power generation and atomic power generation. The fuel cell converts the Gibbs free energy in the chemical energy of the fuel into electric energy through electrochemical reaction, and is not limited by the Carnot cycle effect, so the efficiency is high; in addition, fuel and oxygen are used as raw materials for the fuel cell, and mechanical transmission parts are not arranged, so that the discharged harmful gas is extremely little, and the service life is long. It follows that fuel cells are the most promising power generation technology from the viewpoint of energy conservation and ecological environment conservation.

The fuel cell is an energy conversion device which converts chemical energy stored in fuel and oxidant into electric energy isothermally according to the electrochemical principle, i.e. the primary cell operation principle, so that the actual process is an oxidation-reduction reaction. A fuel cell is mainly composed of four parts, namely an anode, a cathode, an electrolyte and an external circuit. The fuel gas and the oxidizing gas are respectively introduced from the anode and the cathode of the fuel cell. The fuel gas emits electrons at the anode, which are conducted to the cathode through an external circuit and combine with the oxidizing gas to generate ions. Under the action of the electric field, the ions migrate to the anode through the electrolyte and react with the fuel gas to form a loop, and generate current. At the same time, the fuel cell also generates a certain amount of heat due to its own electrochemical reaction and the internal resistance of the cell. The cathode and anode of the battery conduct electrons and also act as a catalyst for the redox reaction. When the fuel is a hydrocarbon, the anode is required to have higher catalytic activity. The cathode and the anode are generally porous structures so as to facilitate the introduction of reaction gas and the discharge of products. The electrolyte plays a role in transferring ions and separating fuel gas and oxidizing gas. To prevent short circuits in the cell caused by mixing of the two gases, the electrolyte is typically a dense structure. In practical applications, fuel cells are commonly operated in cooperation with an integrated structure, and at the moment, a plurality of fuel cells are commonly packaged into a cell stack, which also causes a heat dissipation problem while improving the working efficiency.

Disclosure of Invention

The utility model aims to provide a solid oxide fuel cell stack aiming at the technical defects of the prior art so as to solve the technical problem of low heat dissipation efficiency of the conventional fuel cell stack.

In order to achieve the technical purpose, the utility model adopts the following technical scheme:

the utility model provides a solid oxide fuel cell stack, the power distribution box comprises a box body, the through-hole, the chassis, the snake-shaped groove, the snake-shaped pipe, connect, the solenoid valve, the cell body, the mount, the cell unit body, the end cover, the hasp, wherein, the through-hole has been seted up on the lateral wall of box, be provided with the chassis on the inside bottom surface of box, the snake-shaped groove has been seted up to the chassis upper end, the snake-shaped pipe is embedded in the snake-shaped groove, the tip at the snake-shaped pipe has the joint, be provided with the solenoid valve in joint department, it stretches out to the box outside via the through-hole to connect, the cell body has on the snake-shaped groove, the solenoid valve is embedded in the cell body, it has the heat-conducting plate to attach in the upper end of snake-shaped pipe, a plurality of mounts of fixedly connected with in the upper end of heat-conducting plate, a plurality of cell unit body joints are on a plurality of mounts, the end cover has been detained in the upper end of box, be provided with the hasp between end cover and the box.

Preferably, the adapter is connected to a water source by a hose to which a liquid pump is connected.

Preferably, the plurality of battery unit cells are arranged side by side with their axes parallel to each other.

Preferably, a buckle is arranged at the lower port of the end cover, a clamping groove is arranged at the upper port of the box body, and the buckle and the clamping groove are matched with each other.

Preferably, the outer wall of the box body is provided with a plurality of strip-shaped grooves which are parallel to each other.

The utility model provides a solid oxide fuel cell stack. The technical scheme adopts a high-density array type arrangement mode, and a replaceable water-cooling radiating component is designed for the cell stack. Specifically, the battery units are densely arranged on the fixing frame, and the fixing frame is directly carried on the heat conducting plate made of metal material; a chassis with a snake-shaped groove is arranged below the heat conducting plate, so that the upper battery unit body can be supported, and a heat dissipation structure is constructed by depending on an interlayer between the chassis and the heat conducting plate; the heat dissipation structure takes a coiled pipe as a main body, and a joint at the end part of the coiled pipe extends out of the box body through a through hole on the side wall of the box body and is connected with a water source, so that a continuously flowing cooling water environment is constructed in the coiled pipe; the serpentine pipe is embedded in a serpentine groove on the chassis and is tightly contacted with the heat conducting plate, so that the water cooling and heat dissipation effects are achieved on the battery unit body above the serpentine pipe; meanwhile, the electromagnetic valve is additionally arranged on the coiled pipe, so that the flow speed of cooling water can be controlled, and the cooling efficiency can be controlled. The utility model effectively overcomes the technical defect of poor heat dissipation of the cell stack in a high integration mode, and has good popularization prospect.

Drawings

FIG. 1 is a state diagram of the present invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

in the figure:

1. case body 2, through hole 3, chassis 4 and snake-shaped groove

5. Coiled pipe 6, joint 7, electromagnetic valve 8 and tank body

9. Heat conducting plate 10, fixing frame 11, battery unit body 12 and end cover

13. And (5) locking.

Detailed Description

Hereinafter, specific embodiments of the present invention will be described in detail. Well-known structures or functions may not be described in detail in the following embodiments in order to avoid unnecessarily obscuring the details. Approximating language, as used herein in the following examples, may be applied to identify quantitative representations that could permissibly vary in number without resulting in a change in the basic function. Unless defined otherwise, technical and scientific terms used in the following examples have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Example 1

A solid oxide fuel cell stack, as shown in figures 1-3, comprises a case 1, a through hole 2, a chassis 3, a serpentine groove 4, a serpentine pipe 5, a joint 6, an electromagnetic valve 7, a groove body 8, a heat conducting plate 9, a fixing frame 10, cell unit bodies 11, an end cover 12 and a lock catch 13, wherein the through hole 2 is arranged on the side wall of the case 1, the chassis 3 is arranged on the inner bottom surface of the case 1, the serpentine groove 4 is arranged on the upper end of the chassis 3, the serpentine pipe 5 is embedded in the serpentine groove 4, the joint 6 is arranged at the end part of the serpentine pipe 5, the electromagnetic valve 7 is arranged at the joint 6, the joint 6 extends out of the case 1 through the through hole 2, the groove body 8 is arranged on the serpentine groove 4, the electromagnetic valve 7 is embedded in the groove 8, the heat conducting plate 9 is attached to the upper end of the serpentine pipe 5, the fixing frames 10 are fixedly connected to the upper end of the heat conducting plate 9, the cell unit bodies 11 are clamped on the fixing frames 10, an end cover 12 is buckled at the upper end of the box body 1, and a lock catch 13 is arranged between the end cover 12 and the box body 1.

Example 2

A solid oxide fuel cell stack, as shown in figures 1-3, comprises a case 1, a through hole 2, a chassis 3, a serpentine groove 4, a serpentine pipe 5, a joint 6, an electromagnetic valve 7, a groove body 8, a heat conducting plate 9, a fixing frame 10, cell unit bodies 11, an end cover 12 and a lock catch 13, wherein the through hole 2 is arranged on the side wall of the case 1, the chassis 3 is arranged on the inner bottom surface of the case 1, the serpentine groove 4 is arranged on the upper end of the chassis 3, the serpentine pipe 5 is embedded in the serpentine groove 4, the joint 6 is arranged at the end part of the serpentine pipe 5, the electromagnetic valve 7 is arranged at the joint 6, the joint 6 extends out of the case 1 through the through hole 2, the groove body 8 is arranged on the serpentine groove 4, the electromagnetic valve 7 is embedded in the groove 8, the heat conducting plate 9 is attached to the upper end of the serpentine pipe 5, the fixing frames 10 are fixedly connected to the upper end of the heat conducting plate 9, the cell unit bodies 11 are clamped on the fixing frames 10, an end cover 12 is buckled at the upper end of the box body 1, and a lock catch 13 is arranged between the end cover 12 and the box body 1. Wherein the joint 6 is connected to a water source by means of a hose to which a liquid pump is connected. The plurality of battery unit bodies 11 are arranged side by side, and the axes of the plurality of battery unit bodies 11 are parallel to each other. A buckle is arranged at the lower port of the end cover 12, a clamping groove is arranged at the upper port of the box body 1, and the buckle and the clamping groove are matched with each other. The outer wall of the box body 1 is provided with a plurality of strip-shaped grooves which are parallel to each other.

The embodiments of the present invention have been described in detail, but the description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model. Any modification, equivalent replacement, and improvement made within the scope of the application of the present invention should be included in the protection scope of the present invention.

Claims

1. A solid oxide fuel cell stack is characterized by comprising a box body (1), a through hole (2), a chassis (3), a serpentine groove (4), a serpentine pipe (5), a joint (6), an electromagnetic valve (7), a groove body (8), a heat conducting plate (9), a fixing frame (10), a cell unit body (11), an end cover (12) and a lock catch (13), wherein the through hole (2) is formed in the side wall of the box body (1), the chassis (3) is arranged on the inner bottom surface of the box body (1), the serpentine groove (4) is formed in the upper end of the chassis (3), the serpentine pipe (5) is embedded in the serpentine groove (4), the joint (6) is arranged at the end part of the serpentine pipe (5), the electromagnetic valve (7) is arranged at the joint (6), the joint (6) extends out of the box body (1) through the through hole (2), the groove body (8) is formed in the serpentine groove (4), the electromagnetic valve (7) is embedded in the groove body (8), the heat conducting plate (9) is attached to the upper end of the coiled pipe (5), the plurality of fixing frames (10) are fixedly connected to the upper end of the heat conducting plate (9), the plurality of battery unit bodies (11) are connected to the plurality of fixing frames (10) in a clamped mode, the upper end of the box body (1) is provided with the end cover (12), and the lock catch (13) is arranged between the end cover (12) and the box body (1).

2. A solid oxide fuel cell stack according to claim 1, characterized in that the connection (6) is connected to a water source by means of a hose to which a liquid pump is connected.

3. A solid oxide fuel cell stack according to claim 1, wherein a plurality of unit cells (11) are arranged side by side, and the axes of the plurality of unit cells (11) are parallel to each other.

4. The solid oxide fuel cell stack of claim 1, wherein a snap is provided at a lower port of the end cap (12), and a snap groove is provided at an upper port of the case (1), the snap and the snap groove are mutually matched.

5. Solid oxide fuel cell stack in accordance with claim 1, characterized by the fact that there are several strip-shaped grooves on the outer wall of the casing (1), said grooves being parallel to each other.