Hydrothermal management device of hydrogen fuel power generation unit

Abstract

The utility model discloses a hydrothermal management device of a hydrogen fuel power generation unit. The hydrothermal management device comprises circulating water, an electric pile, a water replenishing port and a water draining port, the hydrogen fuel power generation unit hydrothermal management device further comprises a water pump, a heat dissipation assembly, a heater, a thermostat, a deionizer and a filter, a water outlet and a water inlet are formed in the electric pile, circulating water needs to enter the electric pile, the water pump is connected with the water outlet of the electric pile, and the filter and the deionizer are arranged in front of the water inlet of the electric pile. The circulating water circularly flows to enable the heat of the electric pile to flow into the heat dissipation assembly or the heater, and the thermostat adjusts the flow direction proportion of the circulating water through the inlet and outlet temperature and pressure of the electric pile. According to the device, on the premise that circulating water is reasonably utilized to take away heat energy in power generation, dynamic heat preservation operation is conducted, heat dissipation and heating can be achieved, the situation that the temperature of the device is too high or too low in the running process is avoided, and the running safety of the system is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to hydrogen fuel cell power generation management field, more specifically, it relates to a kind of hydrogen fuel power generation unit hydrothermal management device. BACKGROUND

[0002] The current domestic energy consumption is mainly fossil energy. Fossil energy has obvious shortcomings, such as non-renewable and pollution to the environment during use. In order to respond to the state's requirements for "carbon peak" and "carbon neutral", new pollution-free and renewable energy is urgently needed to replace. In new energy, hydrogen energy has obvious characteristics and advantages. Hydrogen has high energy density per unit weight. Water electrolysis hydrogen production and hydrogen power generation into water can be recycled without pollution. Hydrogen can be stored and transported through hydrogen cylinders or pipelines, and hydrogen fuel cells can generate electricity. Therefore, the entire hydrogen energy industry chain can be pollution-free, which is an ideal energy source for future development.

[0003] The hydrogen fuel power generation system mainly consists of air path, hydrogen path, water path and circuit. The water path mainly stabilizes the temperature of the chemical reaction environment of the system. Since the temperature is too high or too low during hydrogen power generation, it will affect the efficiency of power generation. Therefore, a reliable water and heat management system is needed to ensure the stability of the reaction environment. SUMMARY

[0004] The purpose of the application is to solve the problem that the temperature is too high or too low during hydrogen power generation, which affects the efficiency of power generation. The utility model provides a hydrogen fuel power generation unit hydrothermal management device, which performs dynamic insulation under the premise of reasonably utilizing circulating water to remove heat energy generated during power generation, to avoid the situation that the overall device has too high or too low temperature during operation.

[0005] Technical scheme: In order to achieve the above-mentioned purpose of the application, the utility model provides a hydrogen fuel power generation unit hydrothermal management device, which comprises circulating water, an electric pile, a water supplementing port and a water outlet. The hydrogen fuel power generation unit hydrothermal management device further comprises a water pump, a heat dissipation assembly, a heater, a thermostat, a deionizer and a filter. The electric pile is provided with a water outlet and a water inlet. The circulating water needs to enter the inside of the electric pile. The water pump is connected to the water outlet of the electric pile. The filter and the deionizer are arranged before the water inlet of the electric pile. The circulating water circulates to flow the heat of the electric pile into the heat dissipation assembly or the heater. The thermostat adjusts the flow direction and proportion of the circulating water through the temperature and pressure of the inlet and outlet of the electric pile. The water pump is also connected to the water outlet. A water discharge control valve is arranged between the water pump and the water outlet.

[0006] An expansion tank is arranged between the water supplementing port and the electric pile. An exhaust port is arranged on the expansion tank. An exhaust control valve is arranged between the expansion tank and the exhaust port. The water supplementing port is directly connected to the water outlet of the electric pile or connected to the water outlet of the electric pile through the expansion tank.

[0007] The water temperature regulator has one inlet and two outlets, and can accurately control the flow of the two outlets, the inlet of the water temperature regulator is connected with the water pump, the two outlets of the water temperature regulator are connected with the heat dissipation assembly and the heater respectively, the heat dissipation assembly and the heater are connected with the electric pile through the filter, a proportional valve is arranged between the filter and the heat dissipation assembly and the heater, and the proportional valve is connected with the deionizer in parallel.

[0008] A front temperature sensor and a front water pressure sensor are arranged between the water inlet of the electric pile and the filter, and a rear temperature sensor and a rear water pressure sensor are arranged between the water outlet of the water pump and the electric pile.

[0009] A conductivity sensor is arranged between the water temperature regulator and the water pump.

[0010] Since the circulating water of heat dissipation needs to enter the electric pile, the electric pile has multiple positive and negative electrode materials, and the ions in the water can cause internal charge leakage, so the internal circulating water needs to use deionized water, and a deionizer and a conductivity detection sensor need to be integrated in the system.

[0011] The use environment of the hydrogen fuel cell can be low temperature in winter and high temperature in summer, so the temperature in the system can be very high or very low. In order to solve the different environmental temperatures, the system needs to have a heat dissipation device and a heating device. The working principle of the water temperature regulator is similar to that of a three-way valve, that is, one inlet and two outlets, which can accurately control the flow of the two outlets. For example, when the temperature of the electric pile is low, the water temperature regulator increases the outlet flow of the heater side, when the temperature is high, the water temperature regulator increases the outlet flow of the heat dissipation side, and in normal times, dynamic adjustment is carried out.

[0012] Advantages: Compared with the prior art, the advantages of the utility model are as follows:

[0013] (1) The device can perform dynamic heat preservation under the premise of reasonably utilizing circulating water to take away heat energy in power generation, can realize heat dissipation and heating, avoids the situation that the overall device has excessively high or low temperature in operation, and guarantees the safety of system operation.

[0014] (2) The device is suitable for high-performance electric piles in power generation scenes, is customized with high efficiency as a core, has higher service life under full-power power generation conditions, has simple pipeline layout, is easy to assemble, and is very convenient to disassemble and replace. DETAILED DESCRIPTION

[0015] Figure 1 It is a structural schematic view of the hydrogen fuel power generation unit water heat management device. DETAILED DESCRIPTION

[0016] 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.

[0017] like Figure 1 As shown, a hydrothermal management device for a hydrogen fuel cell power generation unit includes circulating water, a fuel cell stack 11, a water inlet 3, and a drain outlet 2. The device further includes a water pump 8, a heat dissipation assembly 5, a heater 6, a thermostat 4, a deionizer 10, and a filter 9. The fuel cell stack 11 has an outlet and an inlet. The circulating water needs to enter the fuel cell stack 11. The water pump 8 is connected to the outlet of the fuel cell stack 11. The filter 9 and deionizer 10 are installed before the inlet of the fuel cell stack 11. The circulating water circulates, carrying heat from the fuel cell stack 11 into the heat dissipation assembly 5 or the heater 6. The thermostat 4 regulates the flow ratio of the circulating water based on the inlet and outlet temperatures and pressures of the fuel cell stack 11. The water pump 8 is also connected to the drain outlet 2, and a drain control valve is installed between the water pump 8 and the drain outlet 2.

[0018] An expansion tank 1 is provided between the water inlet 3 and the fuel cell stack 11. An exhaust port is provided on the expansion tank 1. An exhaust control valve is provided between the expansion tank 1 and the exhaust port. The water inlet 3 is directly connected to the water outlet of the fuel cell stack 11 or connected to the water outlet of the fuel cell stack 11 through the expansion tank 1.

[0019] The thermostat 4 has one inlet and two outlets, which can precisely control the flow rate of the two outlets. The inlet of the thermostat 4 is connected to the water pump 8. The two outlets of the thermostat 4 are respectively connected to the heat dissipation assembly 5 and the heater 6. The heat dissipation assembly 5 and the heater 6 are both connected to the fuel cell stack 11 through the filter 9. A proportional valve is installed between the filter 9 and the heat dissipation assembly 5 and the heater 6. A deionizer 10 is connected in parallel to the proportional valve.

[0020] A front temperature sensor and a front water pressure sensor are installed between the water inlet of the fuel cell stack 11 and the filter 9, and a rear temperature sensor and a rear water pressure sensor are installed between the water pump 8 and the water outlet of the fuel cell stack 11.

[0021] A conductivity sensor is installed between the thermostat 4 and the water pump 8.

Claims

1. A hydrogen fuel power generation unit hydrothermal management device, comprising circulating water, a stack (11), a water supplement port (3) and a water discharge port (2), characterized in that: The hydrogen fuel power generation unit water thermal management device further comprises a water pump (8), a heat dissipation assembly (5), a heater (6), a thermostat (4), a deionizer (10), a filter (9), the water outlet and the water inlet are arranged on the stack (11), the circulating water needs to enter the inside of the stack (11), the water pump (8) is connected to the water outlet of the stack (11), the water inlet of the stack (11) is provided with the filter (9) and the deionizer (10) in sequence, the circulating water circulates and flows to make the heat of the stack (11) flow into the heat dissipation assembly (5) or the heater (6), the thermostat (4) adjusts the flow direction ratio of the circulating water through the inlet and outlet temperature and pressure of the stack (11), the water pump (8) is further connected with the drain port (2), and the water pump (8) and the drain port (2) are provided with a drain control valve.

2. A hydrothermal management device for a hydrogen fuel cell power unit according to claim 1, characterized by: The expansion water tank (1) is arranged between the water supplement port (3) and the stack (11), the expansion water tank (1) is provided with an exhaust port, an exhaust control valve is arranged between the expansion water tank (1) and the exhaust port, and the water supplement port (3) is directly connected with the water outlet of the stack (11) or is connected with the water outlet of the stack (11) through the expansion water tank (1).

3. A hydrothermal management device for a hydrogen fuel cell power unit according to claim 1, wherein: The thermostat (4) has an inlet and two outlets, the flow rates of the two outlets can be accurately controlled, the inlet of the thermostat (4) is connected with the water pump (8), the two outlets of the thermostat (4) are connected with the heat dissipation assembly (5) and the heater (6) respectively, the heat dissipation assembly (5) and the heater (6) are connected with the stack (11) through the filter (9), a proportional valve is arranged between the filter (9) and the heat dissipation assembly (5) and the heater (6), and the deionizer (10) is connected in parallel on the proportional valve.

4. A hydrothermal management device for a hydrogen fuel cell power unit according to claim 1, characterized by: A front temperature sensor and a front water pressure sensor are arranged between the water inlet of the stack (11) and the filter (9), and a rear temperature sensor and a rear water pressure sensor are arranged between the water pump (8) and the water outlet of the stack (11).

5. A hydro gen fuel cell power plant water thermal management device according to claim 3, wherein: An electrical conductivity sensor is arranged between the thermostat (4) and the water pump (8).

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