CN219123276U

CN219123276U - Quick cooling and temperature control system of fuel cell test bench

Info

Publication number: CN219123276U
Application number: CN202121800616.9U
Authority: CN
Inventors: 杨景官; 范身申; 白同沈; 宋兰; 孙雪峰
Original assignee: Dalian Jingyuan Hydrogen Technology Co ltd
Current assignee: Dalian Jingyuan Hydrogen Technology Co ltd
Priority date: 2021-08-04
Filing date: 2021-08-04
Publication date: 2023-06-02
Anticipated expiration: 2031-08-04

Abstract

The utility model provides a rapid cooling and temperature controlling system of a fuel cell test bench, which comprises a spray tank and first temperature radiating fins, wherein a circulating loop is formed by connecting the spray tank and the first temperature radiating fins in series through pipelines, and a circulating loop is also formed by connecting the spray tank and second temperature radiating fins in series through pipelines; the spray tank is divided into two branches through a pipeline and is connected to the first temperature radiating fin. In the utility model, the spray tank is connected with a second water pump, the second water pump is connected with a second temperature radiating fin, the other end of the second temperature radiating fin is connected with a cold water machine, a second electric ball valve is arranged at a cold water exchange inlet of the second temperature radiating fin, the water flow of the cold water entering the second temperature radiating fin is controlled, and the water in the spray tank directly returns to the spray tank after passing through the second temperature radiating fin; by adopting the arrangement, the water in the spray tank circulates between the spray tank and the second temperature radiating fin, and the temperature difference between the upper temperature and the lower temperature of the spray tank can be reduced.

Description

Quick cooling and temperature control system of fuel cell test bench

Technical Field

The utility model relates to the technical field of new energy, in particular to a rapid cooling and temperature controlling system of a fuel cell test bench.

Background

In the use scheme of cooling and temperature control of the traditional fuel cell test bench, the problem of temperature rise of a spray tank can be realized only by using a heating and temperature-reducing waterway with a spray device, and the purpose of cooling can also be realized; but in the process of cooling, the waterway is subjected to plate replacement through the cooling plate, and enters the spray tank through the spraying device after heat transfer with external cold water, so that the temperature of a spraying port is rapidly reduced, the temperature of the tank bottom is not changed, when the spraying temperature is lower than the set temperature, the heating tank is heated when the temperature cooling plate is subjected to heat transfer, the cooling is slow, the temperature fluctuation is large, and the humidity in the spray tank is unstable. In practical application, when a hydrogen fuel cell is used as a power generation system, the above cooling conditions far do not meet the ideal requirements, so the utility model provides a rapid cooling and temperature control system for a fuel cell test bench to solve the above problems.

Disclosure of Invention

The utility model aims to provide a rapid cooling and temperature control system for a fuel cell test bench, so as to solve the technical problems.

The utility model aims to solve the technical problems, and is realized by adopting the following technical scheme: the rapid cooling and temperature controlling system of the fuel cell test bench comprises a spray tank and first temperature radiating fins, wherein a circulating loop is formed by connecting the spray tank and the first temperature radiating fins in series through pipelines, and a circulating loop is also formed by connecting the spray tank and second temperature radiating fins in series through pipelines; the spray tank is divided into two branches through a pipeline and is connected to the first temperature radiating fin, wherein a first temperature sensor, a first Y-shaped filter, a first water pump and a first pressure sensor are sequentially arranged on one branch; the other branch road is sequentially provided with a second temperature sensor, a second pressure sensor and a heating tank; the spray tank is divided into two branches through a pipeline and is connected to the second temperature radiating fin, and a second Y-shaped filter, a second water pump and a third pressure sensor are sequentially arranged on one branch.

Preferably, the first temperature cooling fin is further provided with a first cold water outlet and a first cold water inlet, and a first electric ball valve is arranged in the first cold water inlet.

Preferably, the second temperature cooling fin is provided with a second cold water outlet and a second cold water inlet, wherein a second electric ball valve is arranged in the second cold water inlet.

Preferably, the first electric ball valve, the second electric ball valve, the first water pump and the second water pump are all electrically connected to the NI controller and are detected and controlled by the controller NI.

Preferably, the first temperature sensor, the second temperature sensor, the first pressure sensor, the second pressure sensor and the third pressure sensor are all electrically connected to the NI controller and are detected by the controller NI.

Compared with the related art, the rapid cooling and temperature controlling system of the fuel cell test stand has the following beneficial effects:

the utility model provides a rapid cooling and temperature controlling system of a fuel cell test board, which comprises the following steps that firstly, two loops between a spray tank and a second temperature radiating fin are added on the original one path; the spray tank is connected with a second water pump, the second water pump is connected with a second temperature radiating fin, the other end of the second temperature radiating fin is connected with a water chiller, a second electric ball valve is arranged at a cold water exchange inlet of the second temperature radiating fin, the water flow of the cold water entering the second temperature radiating fin is controlled, and the water in the spray tank directly returns to the spray tank after passing through the second temperature radiating fin; by adopting the arrangement, the water in the spray tank circulates between the spray tank and the second temperature radiating fin, thereby realizing circulation temperature control and adjustment and being capable of reducing the temperature difference between the upper temperature and the lower temperature of the spray tank; the spray temperature and the spray tank temperature are controlled, so that the cooling speed is increased, the time of cooling and temperature control of the device is ensured, and the working efficiency of cooling and temperature control of the hydrogen fuel cell is improved.

Drawings

FIG. 1 is a schematic diagram of a rapid cooling and temperature control system for a fuel cell test stand according to the present utility model;

FIG. 2 is a block diagram of a rapid cooling and temperature control system for a fuel cell test stand according to the present utility model;

reference numerals: 1. a first electrically operated ball valve; 2. a first temperature heat sink; 3. a heating tank; 4. a second pressure sensor; 5. a second temperature sensor; 6. a spray tank; 7. a first temperature sensor; 8. a first Y-filter; 9. a first water pump; 10. a first pressure sensor; 11. a second Y-filter; 12. a second water pump; 13. a third pressure sensor; 14. a second temperature heat sink; 15. and a second electrically operated ball valve.

Detailed Description

In order that the manner in which the above recited features, objects and advantages of the present utility model are obtained, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. Based on the examples in the embodiments, those skilled in the art can obtain other examples without making any inventive effort, which fall within the scope of the utility model.

Specific embodiments of the present utility model are described below with reference to the accompanying drawings.

In the specific implementation process, as shown in fig. 1, a rapid cooling and temperature controlling system of a fuel cell test board comprises a spray tank 6 and a first temperature radiating fin 2, wherein the spray tank 6 and the first temperature radiating fin 2 are connected in series through a pipeline to form a circulation loop, and the spray tank 6 and a second temperature radiating fin 14 are connected in series through a pipeline to form a circulation loop; the spray tank 6 is divided into two branches through a pipeline and is connected to the first temperature radiating fin 2, wherein a first temperature sensor 7, a first Y-shaped filter 8, a first water pump 9 and a first pressure sensor 10 are sequentially arranged on one branch; the other branch road is sequentially provided with a second temperature sensor 5, a second pressure sensor 4 and a heating tank 3; the spray tank 6 is divided into two branches by a pipeline and is connected to a second temperature radiating fin 14, wherein one branch is sequentially provided with a second Y-shaped filter 11, a second water pump 12 and a third pressure sensor 13.

In the specific implementation process, as shown in fig. 1 and 2, the first temperature cooling fin 2 is further provided with a first cold water outlet and a first cold water inlet, wherein the first cold water inlet is internally provided with a first electric ball valve 1. The second temperature cooling fin 14 is provided with a second cold water outlet and a second cold water inlet, wherein a second electric ball valve 15 is arranged in the second cold water inlet. The first electric ball valve 1, the second electric ball valve 15, the first water pump 9 and the second water pump 12 are all electrically connected to an NI controller and are detected and controlled by the controller NI.

In the implementation, as shown in fig. 2, the first temperature sensor 7, the second temperature sensor 5, the first pressure sensor 10, the second pressure sensor 4, and the third pressure sensor 13 are all electrically connected to and detected by the NI controller.

The working principle of the utility model is as follows:

the water in the spray tank 6 is filtered through a pipeline connected with a first Y-shaped filter 8 and a second Y-shaped filter 11, then the water is conveyed into the heating tank 3 through a first water pump 9, a first pressure sensor 10 and a first temperature radiating fin 2 are arranged in the space, and finally the water in the heating tank 3 is recycled into the spray tank 6 after being sprayed through a spray device, and the water is circulated in sequence; in the process, whether the first water pump 9 works normally or not can be observed through the NI controller, and the rotating speed of the first water pump 9 can be controlled to control the water flow. The other side of the first temperature radiating fin 2 is communicated with a water chiller, a first electric ball valve 1 is added at the front end of the inlet of the first temperature radiating fin 2 to control cooling, the heat dissipation capacity of the first temperature radiating fin 2 is realized through the opening size of the electric ball valve, but only the group controls cooling and temperature control time to be too long, and the control is unstable after the temperature is reduced to the set temperature;

the upper temperature and the lower temperature of the spray tank 6 have temperature difference, so that the humidity is unstable and the working efficiency of the hydrogen fuel cell is influenced, therefore, on the basis, the spray tank 6 is connected with a second water pump 12, the second water pump 12 is connected with a second temperature radiating fin 14, the other end of the second temperature radiating fin 14 is connected with a water chiller, a second electric ball valve 15 is arranged at a cold water exchange inlet of the second temperature radiating fin 14, the water flow of the cold water entering the second temperature radiating fin 14 is controlled, and the water in the spray tank 6 directly returns to the spray tank 6 after passing through the second temperature radiating fin 14; adjusting the temperature difference of the spray tank 6;

the NI controller judges whether the water temperature in the spray tank 6 is reduced to be close to the set temperature through the second temperature sensor 5, then the second electric ball valve 15 is closed, the NI controller gradually adjusts the spray temperature by controlling the heating tank 6 and the first electric ball valve 1, so that the temperature of the spray tank is gradually stable, and finally the effects of rapid temperature reduction and temperature control are achieved.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a quick cooling of fuel cell testboard, accuse temperature system, includes spray tank (6) and first temperature fin (2), its characterized in that: the spray tank (6) and the first temperature radiating fins (2) are connected in series through a pipeline to form a circulation loop, and the spray tank (6) and the second temperature radiating fins (14) are connected in series through a pipeline to form a circulation loop;

the spray tank (6) is divided into two branches through a pipeline and is connected to the first temperature radiating fin (2), wherein a first temperature sensor (7), a first Y-shaped filter (8), a first water pump (9) and a first pressure sensor (10) are sequentially arranged on one branch; the other branch road is sequentially provided with a second temperature sensor (5), a second pressure sensor (4) and a heating tank (3);

the spray tank (6) is divided into two branches through a pipeline and is connected to a second temperature radiating fin (14), and a second Y-shaped filter (11), a second water pump (12) and a third pressure sensor (13) are sequentially arranged on one branch.

2. The rapid cooling and temperature control system for a fuel cell test stand of claim 1, wherein: the first temperature cooling fin (2) is also provided with a first cold water outlet and a first cold water inlet, wherein a first electric ball valve (1) is arranged in the first cold water inlet.

3. The rapid cooling and temperature control system for a fuel cell test stand of claim 2, wherein: and a second cold water outlet and a second cold water inlet are arranged on the second temperature radiating fin (14), and a second electric ball valve (15) is arranged in the second cold water inlet.

4. A rapid cooling and temperature control system for a fuel cell test stand according to claim 3, wherein: the first electric ball valve (1), the second electric ball valve (15), the first water pump (9) and the second water pump (12) are electrically connected to an NI controller and are detected and controlled by the NI controller.

5. The rapid cooling and temperature control system for a fuel cell test stand of claim 1, wherein: the first temperature sensor (7), the second temperature sensor (5), the first pressure sensor (10), the second pressure sensor (4) and the third pressure sensor (13) are electrically connected to the NI controller and are detected by the NI controller.