CN215220781U

CN215220781U - Fuel cell packaging pressure testing device

Info

Publication number: CN215220781U
Application number: CN202121196079.1U
Authority: CN
Inventors: 杨皓; 王志军; 康鹏
Original assignee: Huizhou Lvbao Technology Co ltd
Current assignee: Huizhou Lvbao Technology Co ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2021-12-17
Anticipated expiration: 2031-05-31

Abstract

The utility model relates to a fuel cell produces technical field, concretely relates to fuel cell encapsulation pressure test device, including parallel arrangement's upper end plate and lower end plate, be used for connecting the fastening components of upper end plate and lower end plate, it holds fuel cell unit to have between upper end plate and the lower end plate, the below of upper end plate evenly is provided with a plurality of pressure sensor. The utility model discloses set up pressure sensor between upper end plate, lower end plate, the pressure of different positions when can detecting the fuel cell encapsulation, the homogeneity of analysis fuel cell pile atress, and then the error of pressure when can learn theoretical design and actual encapsulation, and then can optimize and improve the structure of pile, improve the performance of pile. Additionally, the utility model discloses can simulate the pressure variation of fuel cell pile normal operating time, help the technical staff to improve the structure of fuel cell pile.

Description

Fuel cell packaging pressure testing device

Technical Field

The utility model relates to a fuel cell production and processing technology field, concretely relates to fuel cell encapsulation pressure test device.

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 without the limitation of Carnot cycle effect, so that the fuel cell has high efficiency, uses the fuel and oxygen as raw materials, has no mechanical transmission part, has no noise pollution and emits few harmful gases. Common fuel cells include hydrogen-oxygen fuel cells, solid oxide fuel cells, methanol fuel cells, and the like. Because the traditional fossil fuels are developed and utilized on a large scale by human beings, in recent years, the development and utilization of environmental protection energy sources such as hydrogen energy sources are receiving more and more attention, and the hydrogen-oxygen fuel cell is more and more taken as an important direction of the application of the hydrogen energy sources, so that the research and development are continuously carried out, and new products emerge endlessly. During production and processing of the fuel cell, assembly of a plurality of parts is required, a plurality of installation surfaces are required, the product needs to be turned over in the assembly process, the weight of the fuel cell is large, the fuel cell is difficult to achieve through manpower, a worker can turn over the product through the assistance of a lifting tool and the like in the traditional mode, but the mode is troublesome and labor-consuming, the fixing of any angle is difficult to achieve, and certain potential safety hazards are also caused.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a fuel cell encapsulation pressure test device.

The utility model discloses a following scheme realizes:

the fuel cell packaging pressure testing device is characterized by comprising an upper end plate and a lower end plate which are arranged in parallel, and a fastening assembly for connecting the upper end plate and the lower end plate, wherein a fuel cell unit is accommodated between the upper end plate and the lower end plate, a plurality of pressure sensors are uniformly arranged below the upper end plate, and the pressure sensors are connected with an electric control box; the fastening assemblies are arranged in a plurality and are uniformly arranged along the edges of the upper end plate and the lower end plate; the fastening assembly comprises a screw rod penetrating through the upper end plate and the lower end plate, a first nut connected to the upper end of the screw rod, and a second nut connected to the lower end of the screw rod.

Further, a support plate is arranged below the pressure sensor, and the fuel cell is placed between the support plate and the lower end plate.

Further, the upper end plate and the lower end plate are provided with mounting holes for mounting fastening assemblies.

Furthermore, the electronic control box is provided with pressure display controllers, and the number of the pressure display controllers corresponds to the number of the pressure sensors.

Furthermore, the electric control box is connected with an upper computer.

Further, the lower end plate is provided with a hydrogen inlet and a hydrogen outlet.

Further, the lower end plate is provided with an air inlet and an air outlet.

Further, the lower end plate is provided with a water inlet and a water outlet.

Contrast prior art, the utility model discloses following beneficial effect has:

the utility model discloses set up upper end plate, lower end plate, pressure sensor, the pressure of different positions when can detecting fuel cell encapsulation, the homogeneity of analysis fuel cell pile atress, and then the error of pressure when can learn theoretical design and actual encapsulation, and then can optimize and improve the structure of pile, improve the performance of pile. On the other hand, the utility model discloses can simulate the pressure variation of fuel cell galvanic pile normal operating time, help the technical staff to improve the structure of fuel cell galvanic pile.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment 1 of a fuel cell packaging pressure testing apparatus provided by the present invention.

Fig. 2 is an enlarged view of a portion a in fig. 1.

Fig. 3 is an enlarged view of a portion B in fig. 1.

Fig. 4 is a schematic view of an upper end plate according to embodiment 1 of the present invention.

Fig. 5 is a schematic view of a lower end plate structure in embodiment 2 of the present invention.

The figure includes:

the hydrogen generating device comprises an upper end plate 1, a mounting hole 11, a lower end plate 2, a hydrogen inlet 21, a hydrogen outlet 22, an air inlet 23, an air outlet 24, a water inlet 25, a water outlet 26, a fastening assembly 3, a screw 31, a first nut 32, a second nut 33, a pressure sensor 4, an electronic control box 5, a pressure display controller 51, a support plate 6 and an upper computer 7.

Detailed Description

To facilitate understanding of the present invention for those skilled in the art, the present invention will be described in further detail with reference to the following detailed description and accompanying drawings.

Example 1

Referring to fig. 1 to 4, the utility model provides a pair of fuel cell encapsulation pressure test device, including parallel arrangement's upper end plate 1 and lower end plate 2, be used for connecting the fastening components 3 of upper end plate 1 and lower end plate 2, it holds fuel cell unit (specifically be used for placing fuel cell's galvanic pile) to have between upper end plate 1 and the lower end plate 2, the below of upper end plate 1 evenly is provided with a plurality of pressure sensor 4, pressure sensor 4 is connected with an automatically controlled box 5.

The fastening assemblies 3 are arranged in plurality, and the fastening assemblies 3 are uniformly arranged along the edges of the upper end plate 1 and the lower end plate 2; the fastening assembly 3 includes a screw 31 penetrating the upper end plate 1 and the lower end plate 2, a first nut 32 connected to an upper end of the screw 31, and a second nut 33 connected to a lower end of the screw 31.

A support plate 6 is arranged below the pressure sensor 4, and the fuel cell is placed between the support plate 6 and the lower end plate 2.

The upper end plate 1 and the lower end plate 2 are both provided with mounting holes 11 for mounting the fastening assemblies 3. The top surface of the upper end plate 1 corresponds to the position of the fastening component 3 and is provided with a first concave part, the mounting hole 11 at the position of the upper end plate 1 is arranged in the first concave part, the top surface of the lower end plate 2 corresponds to the position of the fastening component 3 and is provided with a second concave part, and the mounting hole 11 at the position of the lower end plate 2 is arranged in the second concave part. The first inner concave part and the mounting hole, and the second inner concave part and the mounting hole form a structure similar to a counter bore.

The electronic control box 5 is provided with pressure display controllers 51, and the number of the pressure display controllers 51 corresponds to the number of the pressure sensors 4. Each pressure sensor is connected to a transducer, which is connected to a corresponding pressure display controller 51.

The electronic control box 5 is connected with an upper computer 7, the electronic control box 5 and the upper computer 7 can be in communication connection through an RS485 serial port, input information is displayed on the upper computer 7, data can be collected in real time, files are generated, and the files are stored.

In the embodiment, 6 sensors are provided, the pressure at 6 positions of the fuel cell can be detected, the pressure at the six positions is defined as F1, F2, F3, F4, F5 and F6, the actual pressure inside the stack can be calculated as F = F1+ F2+ F3+ F4+ F5+ F6, and meanwhile, the pressure uniformity at each position of the stack is compared, so that the error between the maximum pressure and the minimum pressure of the stack is not more than 5%. The galvanic pile pressure is inhomogeneous, and galvanic pile seal structure and galvanic pile internal resistance probably are inconsistent, can cause the galvanic pile performance to descend, detect through pressure sensor 4, can detect theoretical design encapsulation power and actual power error, and then optimize and improve the structure of galvanic pile, improve the performance of galvanic pile. In specific implementation, the number and the positions of the pressure sensors 4 can be set according to specific requirements.

During operation, a certain number of monocell electric pile bodies are stacked on the lower end plate 2, then the pressure sensor 4 supporting plate 6 is placed, a plurality of same pressure sensors 4 are uniformly arranged on the supporting plate 6, then the upper end plate 1 is placed, and the upper end plate 1 and the lower end plate 2 are locked by the fastening assembly 3 according to certain pressure. In practice, the fuel cell stack may also be secured by straps.

Example 2

Referring to fig. 5, the lower end plate 2 is provided with a hydrogen inlet 21 and a hydrogen outlet 22, the lower end plate 2 is provided with an air inlet 23 and an air outlet 24, and the lower end plate 2 is provided with a water inlet 25 and a water outlet 26, so that the normal operation of the stack can be simulated, and the pressure in the stack can be tested when a certain back pressure exists. During operation, a blind plate can be used for blocking the air outlet 14, the water outlet 2615 and the hydrogen outlet 16 of the stack, compressed air (nitrogen) with certain pressure is respectively introduced to stabilize the pressure at 50KPa and 100KPa, the pressures F1, F2, F3, F4, F5 and F6 are tested, the total pressure F is calculated, and the corresponding pressures after inflation are compared, so that the improvement and optimization of the stack design can be facilitated. The structure of the rest is the same as that in embodiment 1, and will not be described redundantly.

In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected" and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection, or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

While the invention has been described in conjunction with the specific embodiments set forth above, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, it is intended to embrace all such alternatives, modifications, and variations that fall within the scope of the included claims.

Claims

1. The fuel cell packaging pressure testing device is characterized by comprising an upper end plate and a lower end plate which are arranged in parallel, and a fastening assembly for connecting the upper end plate and the lower end plate, wherein a fuel cell unit is accommodated between the upper end plate and the lower end plate, a plurality of pressure sensors are uniformly arranged below the upper end plate, and the pressure sensors are connected with an electric control box; the fastening assemblies are arranged in a plurality and are uniformly arranged along the edges of the upper end plate and the lower end plate; the fastening assembly comprises a screw rod penetrating through the upper end plate and the lower end plate, a first nut connected to the upper end of the screw rod, and a second nut connected to the lower end of the screw rod.

2. The fuel cell package pressure testing arrangement of claim 1, wherein a support plate is disposed below the pressure sensor, the fuel cell being placed between the support plate and the upper end plate.

3. The fuel cell package pressure testing apparatus of claim 1, wherein the upper end plate and the lower end plate are each provided with a mounting hole for mounting a fastening assembly.

4. The fuel cell package pressure testing device of claim 1, wherein the electronic control box is provided with pressure display controllers, and the number of the pressure display controllers corresponds to the number of the pressure sensors.

5. The fuel cell package pressure testing device of claim 1, wherein the electronic control box is connected with an upper computer.

6. The fuel cell package pressure test device of claim 1, wherein the lower end plate is provided with a hydrogen inlet and a hydrogen outlet.

7. The fuel cell package pressure testing arrangement of claim 1, wherein the lower end plate is provided with an air inlet and an air outlet.

8. The fuel cell package pressure testing apparatus of claim 1, wherein the lower end plate is provided with a water inlet and a water outlet.