Centralized heat management device of MW-grade hydrogen energy storage power generation system

Abstract

The utility model discloses a centralized heat management device for an MW-level hydrogen energy storage power generation system. The centralized heat management device comprises a cooling tower, an outer circulating water pump, a cooling water tank, a BOP heat exchange plate heat exchanger, an electric pile heat exchange plate heat exchanger, a BOP water pump, an electric pile water pump, a BOP system and an electric pile system. The heat of the electric pile and the heat of the BOP are respectively transferred to an external cooling tower system through a plate heat exchanger, water circulation in the electric pile is performed through a water pump, the inside of the BOP is performed through a BOP water pump, the outside of the BOP brings the heat into a cooling tower through an external water pump for heat dissipation, and heat management and control of the whole system are realized. According to the hydrogen energy storage power generation system, the structural integration level of the whole hydrogen energy storage power generation system is reduced, the maintainability and the convenience of the system are further improved, parts in intermediate links are reduced, and the investment of system hardware cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to hydrogen fuel cell power generation system field, more specifically, it relates to a kind of MW level hydrogen energy storage power generation system centralized heat management device. BACKGROUND

[0002] Stack is the core component of hydrogen fuel cell power generation, and an important prerequisite for stack operation is to ensure the heat balance of the stack. When the temperature of the stack is too high or too low, not only the power output and the performance of the stack will be affected, but also the life and system safety of the stack will be greatly affected. In severe cases, it may even cause the stack to be scrapped.

[0003] The present technical solution proposes a centralized cooling method for heat management of the power generation system. Compared with the traditional single heat dissipation method of the stack, centralized heat management not only helps to reduce the system structure integration and improve maintainability, but also saves a lot of system hardware cost investment. SUMMARY

[0004] The present invention aims to address the complexity of fuel cell power generation system heat management, high cost investment and the shortcomings of distributed heat management. The present invention proposes a MW level hydrogen energy storage power generation system centralized heat management device, which collects and dissipates the heat of the stack and auxiliary components BOP during power generation, saving system hardware investment and reducing temperature differences during system power generation.

[0005] Technical solution: In order to achieve the above-mentioned invention purpose, the utility model provides a kind of MW level hydrogen energy storage power generation system centralized heat management device, it is applied to the heat collection and heat dissipation of stack and auxiliary components BOP, including: cooling tower, cooling water tank and container system, the pipeline connection between container system and cooling tower, cooling water tank, hot water generated in container system is sent to cooling tower by pipeline, and the cooled water enters cooling water tank by pipeline, and the cooling water in cooling water tank is recycled by pipeline into container system, a plurality of BOP heat exchange links and stack heat exchange links are provided in the container system, the stack heat exchange links control the heat collection and heat dissipation of the stack, and the BOP heat exchange links control the heat collection and heat dissipation of the auxiliary components BOP. The stack heat exchange link is composed of stack heat exchange plate, stack water pump and stack system, the BOP heat exchange link is composed of BOP heat exchange plate, BOP water pump and BOP system, the stack system is controlled by independent stack heat exchange plate, the stack water pump is arranged between the stack heat exchange plate and the stack system, the BOP system is controlled by independent BOP heat exchange plate, and the BOP water pump is arranged between the BOP system and the BOP heat exchange plate.

[0006] An external circulation water pump is arranged between the cooling tower and the cooling water tank, and the external circulation water pump controls the water flow between the cooling tower and the cooling water tank.

[0007] In actual operation, the hot water generated in the container system is sent to the cooling tower through pipes, and the cooled water enters the cooling water tank through pipes. The cooling water in the cooling water tank then enters the container system through pipes for circulation.

[0008] Beneficial effects: Compared with traditional technical solutions, the beneficial effects of this utility model are as follows:

[0009] (1) This utility model centrally manages the heat energy generated in the fuel cell power generation system, saving on hardware costs.

[0010] (2) This device uses a cooling tower for centralized heat dissipation, which omits some components, reduces system integration, and improves maintainability.

[0011] (3) This utility model has set up a separate control board for each BOP heat exchange link and the stack heat exchange link, which improves the control and response accuracy of the system temperature. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a centralized thermal management device for a MW-level hydrogen energy storage power generation system according to this utility model. Detailed Implementation

[0013] The present invention will be described in detail below through a preferred embodiment, but the scope of protection of the present invention is not limited to the embodiment described.

[0014] like Figure 1 As shown, a centralized thermal management device for a MW-level hydrogen energy storage power generation system is used for heat concentration and dissipation of the fuel cell stack and auxiliary component BOP. It includes a cooling tower 1, a cooling water tank 3, and a container system 10. The container system 10 is connected to the cooling tower 1 and the cooling water tank 3 via pipelines. Hot water generated in the container system 10 is sent to the cooling tower 1 via pipelines, and the cooled water enters the cooling water tank 3 via pipelines. The cooling water in the cooling water tank 3 then enters the container system 10 via pipelines for circulation. Several BOP heat exchange links and fuel cell stack heat exchange links are installed within the container system 10. The fuel cell stack heat exchange links control the heat concentration and dissipation of the fuel cell stack, and the BOP heat exchange links control the heat concentration and dissipation of the auxiliary component BOP. The fuel cell stack heat exchange link consists of a fuel cell stack heat exchange plate 5, a fuel cell stack water pump 7, and a fuel cell stack system 9. The BOP heat exchange link consists of a BOP heat exchange plate 4, a BOP water pump 6, and a BOP system 8. The fuel cell stack system 9 is controlled by an independent fuel cell stack heat exchange plate 5. A fuel cell stack water pump 7 is installed between the fuel cell stack heat exchange plate 5 and the fuel cell stack system 9. The BOP system 8 is controlled by an independent BOP heat exchange plate 4. A BOP water pump 6 is installed between the BOP system 8 and the BOP heat exchange plate 4.

[0015] In actual operation, the hot water generated in the container system 10 is sent to the cooling tower 1 through a pipeline, and the cooled water enters the cooling water tank 3 through a pipeline. The cooling water in the cooling water tank 3 enters the container system 10 through a pipeline to perform a circulating operation.

[0016] An outer circulating water pump 2 is arranged between the cooling tower 1 and the cooling water tank 3, which controls the water flow between the cooling tower 1 and the cooling water tank 3. In short, the heat is internally and externally transmitted through the cooling water circulation, and the heat of the entire system is centrally managed.

Claims

1. A MW-level hydrogen energy storage and power generation system centralized thermal management device, applied to heat concentration and dissipation of the electric pile and auxiliary components BOP, comprising: Cooling tower (1), cooling water tank (3) and container system (10), the container system (10) is connected with cooling tower (1), cooling water tank (3) using pipeline, hot water produced in container system (10) is sent to cooling tower (1) through pipeline, and the water after cooling enters cooling water tank (3) through pipeline, and the cooling water in cooling water tank (3) enters container system (10) again through pipeline to carry out circulation operation, a plurality of BOP heat exchange links and electric pile heat exchange links are arranged in the container system (10), the electric pile heat exchange links control heat concentration and heat dissipation of electric pile, and the BOP heat exchange links control heat concentration and heat dissipation of auxiliary components BOP, characterized in that: the electric pile heat exchange links are composed of electric pile heat exchange plate exchanger (5), electric pile water pump (7) and electric pile system (9), the BOP heat exchange links are composed of BOP heat exchange plate exchanger (4), BOP water pump (6) and BOP system (8), the electric pile system (9) is controlled by independent electric pile heat exchange plate exchanger (5), the electric pile water pump (7) is arranged between the electric pile heat exchange plate exchanger (5) and the electric pile system (9), the BOP system (8) is controlled by independent BOP heat exchange plate exchanger (4), and the BOP water pump (6) is arranged between the BOP system (8) and the BOP heat exchange plate exchanger (4).

2. The centralized thermal management device of a MW-level hydrogen energy storage and generation system according to claim 1, characterized in that: The outer circulating water pump (2) is arranged between the cooling tower (1) and the cooling water tank (3), and the outer circulating water pump (2) controls water flow between the cooling tower (1) and the cooling water tank (3).

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