Solid hydrogen storage and fuel cell heat exchange system

Abstract

The utility model provides a solid hydrogen storage and fuel cell heat exchange system, which relates to the technical field of fuel cells and comprises a solid hydrogen storage circulating liquid pipe system, a fuel cell circulating water pipe system and a heat exchanger. The fuel cell circulating water pipe system comprises a main circulating pipeline and a heat exchange pipeline connected to the main circulating pipeline in parallel, a fuel cell and a radiator are arranged on the main circulating pipeline, a one-way valve is arranged on the heat exchange pipeline, and a three-way valve is arranged between the main circulating pipeline and the heat exchange pipeline. The heat exchanger is arranged between the heat exchange pipeline and the solid hydrogen storage circulating liquid pipe system, and the solid hydrogen storage circulating liquid pipe system is provided with hydrogen storage equipment, a liquid storage tank and a heater arranged in the liquid storage tank. Compared with the prior art, the heat exchange system for the solid hydrogen storage and the fuel cell can transfer heat in a circulating water pipe system of the fuel cell to a circulating liquid pipe system of the solid hydrogen storage, so that the energy consumption of a heater and a radiator is reduced to a certain extent.

Description

TECHNICAL FIELD

[0001] The utility model relates to fuel cell technical field, specifically, relate to a solid state hydrogen storage and fuel cell's heat exchange system. BACKGROUND

[0002] Hydrogen fuel cell is a kind of device that hydrogen and oxygen are converted into electric energy by electrochemical reaction. Its basic principle is to utilize the reaction of hydrogen in anode and oxygen in cathode, generates electric current, heat and water. Hydrogen fuel cell system usually includes solid state hydrogen storage circulating liquid pipe system and fuel cell circulating water pipe system, fuel cell and radiator are arranged on fuel cell circulating water pipe system, solid state hydrogen storage circulating liquid pipe system is provided with solid state hydrogen storage unit (hydrogen storage equipment) liquid tank, heater and pump etc., wherein the heater in solid state hydrogen storage circulating liquid pipe system can heat circulating liquid to a certain temperature, metal hydride in the inner tank of solid state hydrogen storage unit can release hydrogen at a certain temperature, the released hydrogen enters fuel cell, as the fuel of electrochemical reaction, and reacts with oxygen in air, that is, it can discharge, with the rise of fuel cell discharge power, its circulating water temperature gradually rises, at this time, the radiator arranged in fuel cell circulating water pipe system can cool circulating water.

[0003] However, the solid state hydrogen storage circulating liquid pipe system and fuel cell circulating water pipe system in the prior art are independent of each other, resulting in the waste of heat generated by fuel cell, and the solid state hydrogen storage unit also needs heat to release hydrogen, therefore, the heater in the solid state hydrogen storage circulating liquid pipe system and the radiator in the fuel cell circulating water pipe system must work at full power to ensure the normal operation of the system, if the wasted heat in the fuel cell circulating water pipe system can be applied to the solid state hydrogen storage circulating liquid pipe system, the energy consumption of the heater and the radiator can be reduced to a certain extent. UTILITY MODEL CONTENTS

[0004] The problem to be solved by the utility model is how to perform heat exchange in the solid state hydrogen storage circulating liquid pipe system and the fuel cell circulating water pipe system to reduce energy consumption.

[0005] The utility model provides a solid state hydrogen storage and fuel cell's heat exchange system, include: solid state hydrogen storage circulating liquid pipe system, fuel cell circulating water pipe system and heat exchanger, fuel cell circulating water pipe system includes main circulation pipeline and parallelly connected on the main circulation pipeline heat exchange pipeline, the main circulation pipeline is provided with fuel cell and radiator, the heat exchange pipeline is provided with check valve, the main circulation pipeline with the heat exchange pipeline between being provided with three way valve, the three way valve is used for adjusting whether the circulating water in the main circulation pipeline flows through the heat exchange pipeline, the heat exchanger is connected with the heat exchange pipeline and the solid state hydrogen storage circulating liquid pipe system respectively, the solid state hydrogen storage circulating liquid pipe system is provided with hydrogen storage equipment, liquid tank and the heater in the liquid tank.

[0006] The heat exchange system of solid-state hydrogen storage and fuel cells has the following beneficial effects, but is not limited to the following:

[0007] The heat exchange system of solid-state hydrogen storage and fuel cells, heat exchangers are added between the fuel cell circulating water pipe system and the solid-state hydrogen storage circulating liquid pipe system, heat in the fuel cell circulating water pipe system is transferred to the solid-state hydrogen storage circulating liquid pipe system, specifically, after the fuel cell is initially started, when the power generation power is low, the fuel cell circulating water (liquid in the fuel cell circulating water pipe system) temperature is low, at this time, heat exchange with the outside is not needed, the valve position of the three-way valve is adjusted to the first direction, the reverse medium of the check valve does not flow, at this time, the fuel cell circulating water is self-circulated and does not exchange heat with the outside. At this time, the heater on the solid-state hydrogen storage circulating liquid pipe system works at full power, so that the solid-state hydrogen storage circulating liquid (liquid in the solid-state hydrogen storage circulating liquid pipe system) temperature is maintained at the hydrogen release temperature (the metal hydride in the inner tank of the hydrogen storage equipment releases hydrogen near room temperature (≤60 DEG C)), as the fuel cell power continuously rises, the heat generated is higher, and the circulating water temperature gradually rises, when the temperature exceeds the hydrogen release temperature of the hydrogen storage equipment, the valve position of the three-way valve is adjusted to the second direction, the fuel cell circulating water flows through the heat exchanger after the heat exchanger and returns to the fuel cell inlet, the heat exchanger transfers the high temperature of the fuel cell circulating water to the solid-state hydrogen storage circulating liquid pipe system, in this process, the heating power of the heater in the solid-state hydrogen storage circulating liquid pipe system can be reduced, the energy consumption can be reduced (because the fuel cell circulating water transfers a certain amount of heat), and the energy efficiency of the radiator itself of the fuel cell circulating water pipe system can be reduced (because a certain amount of heat is transferred, the heat dissipation amount itself does not need to be large). During the working process of the fuel cell, if the heat exchange to the outside is too large, so that the temperature difference between the fuel cell inlet and outlet exceeds the fuel cell working condition value, the valve position of the three-way valve is adjusted to the first direction again, the circulating water does not flow through the heat exchanger, and the heat transfer to the solid-state hydrogen storage circulating liquid pipe system is cut off, when the temperature difference is within the working condition value range, the valve position of the three-way valve is adjusted to the second direction, and heat is transferred to the solid-state hydrogen storage circulating liquid pipe system. Compared with the prior art, the heat exchange system of solid-state hydrogen storage and fuel cells adds heat exchangers between the fuel cell circulating water pipe system and the solid-state hydrogen storage circulating liquid pipe system, can transfer heat in the fuel cell circulating water pipe system to the solid-state hydrogen storage circulating liquid pipe system, and can reduce the energy consumption of the heater in the solid-state hydrogen storage circulating liquid pipe system and the radiator in the fuel cell circulating water pipe system to a certain extent.

[0008] Optionally, the heat exchanger comprises a first water inlet, a second water outlet, a second water inlet and a first water outlet, the heat exchange pipeline comprises a first pipeline and a second pipeline, one end of the first pipeline is connected with the first water inlet, the other end is connected with the main circulating pipeline, the three-way valve is arranged between the first pipeline and the main circulating pipeline, one end of the second pipeline is connected with the first water outlet, the other end is connected with the main circulating pipeline, the one-way valve is arranged on the second pipeline;

[0009] The solid-state hydrogen storage circulating liquid pipeline system comprises a third pipeline, a fourth pipeline and a fifth pipeline, one end of the third pipeline is connected with the second water outlet, the other end is connected with the liquid inlet of the hydrogen storage device, one end of the fourth pipeline is connected with the liquid outlet of the hydrogen storage device, the other end is connected with the liquid inlet of the liquid storage tank, one end of the fifth pipeline is connected with the liquid outlet of the liquid storage tank, the other end is connected with the second water inlet.

[0010] Optionally, a first temperature sensor is arranged on the third pipeline, and the first temperature sensor is located close to the liquid inlet of the hydrogen storage device.

[0011] Optionally, the heater comprises a heating rod arranged in the liquid storage tank and used for heating the liquid in the liquid storage tank.

[0012] Optionally, a first circulating water pump is arranged on the fifth pipeline, and the first circulating water pump is located close to the liquid outlet of the liquid storage tank.

[0013] Optionally, a second temperature sensor is arranged on the main circulating pipeline, and the second temperature sensor is located close to the water outlet of the fuel cell.

[0014] Optionally, a third temperature sensor is arranged on the main circulating pipeline, and the third temperature sensor is located close to the water inlet of the fuel cell.

[0015] Optionally, a second circulating water pump is arranged on the main circulating pipeline, and the second circulating water pump is located between the fuel cell and the three-way valve.

[0016] Optionally, a flow meter is arranged on the main circulating pipeline.

[0017] Optionally, the three-way valve is an electric three-way ball valve. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic view of the solid-state hydrogen storage and fuel cell heat exchange system of the utility model embodiment.

[0019] Mark explanation:

[0020] 1, heat exchanger; a, first water inlet; b, first water outlet; c, second water inlet; d, second water outlet; 2, fuel cell; 3, radiator; 4, hydrogen storage device; 51, liquid storage tank; 52, heater; 6, three-way valve; 7, check valve; 8, first temperature sensor; 9, first circulating water pump; 10, second temperature sensor; 11, third temperature sensor; 12, second circulating water pump; 13, flow meter. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purpose, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0022] In the description of the present application, the directions or position relationships indicated by "up", "down", "left", "right", "top", "bottom", "front", "back", "inner" and "outer" are based on the directions or position relationships shown in the drawings, and are only for the convenience of describing the present application, and do not indicate or imply that the device must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the scope of protection of the present application.

[0023] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0024] In the description of the present application, the description of the terms "embodiment", "one embodiment" and "one embodiment" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or embodiment are included in at least one embodiment or embodiment of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or embodiment. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or embodiments in a suitable manner.

[0025] As Figure 1The utility model discloses a solid hydrogen storage and fuel cell heat exchange system, including: solid hydrogen storage circulating liquid pipe system, fuel cell circulating water pipe system and heat exchanger 1, fuel cell circulating water pipe system includes main circulating pipeline and parallel on heat exchange pipeline of main circulating pipeline, be provided with fuel cell 2 and radiator 3 on main circulating pipeline, be provided with check valve 7 on heat exchange pipeline, be provided with three -way valve 6 between main circulating pipeline with heat exchange pipeline, three -way valve 6 is used for adjusting whether the circulating water in main circulating pipeline flows through heat exchange pipeline, heat exchanger 1 is connected with heat exchange pipeline and solid hydrogen storage circulating liquid pipe system respectively, be provided with hydrogen storage equipment 4, liquid storage tank 51 and be provided in heater 52 of liquid storage tank 51 on solid hydrogen storage circulating liquid pipe system.

[0026] In the present embodiment, in conjunction with the attached drawings, the following will be described. Figure 1As shown, the heat exchanger 1 is added between the fuel cell circulating water pipe system and the solid-state hydrogen storage circulating liquid pipe system, the heat in the fuel cell circulating water pipe system is transferred to the solid-state hydrogen storage circulating liquid pipe system, after the fuel cell 2 is initially started, when the power generation power is low, the temperature of the fuel cell circulating water (the liquid in the fuel cell circulating water pipe system) is low, at this time, the heat exchange with the outside is not needed, the valve position of the three-way valve 3 is adjusted to the first direction, the reverse medium of the check valve 7 does not flow, at this time, the fuel cell circulating water is self-circulated and does not exchange heat with the outside. At this time, the heater 52 on the solid-state hydrogen storage circulating liquid pipe system works at full power, so that the temperature of the solid-state hydrogen storage circulating liquid (the liquid in the solid-state hydrogen storage circulating liquid pipe system) is maintained at the hydrogen release temperature (the metal hydride in the inner tank of the hydrogen storage device releases hydrogen near room temperature (≤60℃)), as the power of the fuel cell 2 continuously rises, the heat generated by the fuel cell 2 is higher, and the temperature of the circulating water is gradually increased, when the temperature exceeds the hydrogen release temperature of the hydrogen storage device 4, the valve position of the three-way valve 6 is adjusted to the second direction, the fuel cell circulating water flows through the heat exchanger 1 after flowing through the heat exchange pipeline, and then returns to the fuel cell inlet, the heat exchanger 1 transfers the high temperature of the fuel cell circulating water to the solid-state hydrogen storage circulating liquid pipe system, in this process, the heating power of the heater 52 in the solid-state hydrogen storage circulating liquid pipe system can be reduced, the energy consumption can be reduced (because the fuel cell circulating water transfers a certain amount of heat), and the energy consumption of the radiator 3 in the fuel cell circulating water pipe system itself can be reduced (because a certain amount of heat is transferred, the heat dissipation amount itself does not need to be large). During the working process of the fuel cell 2, if the heat exchange with the outside is too large, so that the temperature difference between the inlet and the outlet of the fuel cell 2 exceeds the working condition value of the fuel cell 2, the valve position of the three-way valve 6 is adjusted to the first direction again, the circulating water does not flow through the heat exchanger 1, and the heat transfer to the solid-state hydrogen storage circulating liquid pipe system is cut off, when the temperature difference is within the working condition value, the valve position of the three-way valve 6 is adjusted to the second direction, and the heat is transferred to the solid-state hydrogen storage circulating liquid pipe system. Compared with the prior art, the heat exchanger is added between the fuel cell circulating water pipe system and the solid-state hydrogen storage circulating liquid pipe system, the heat in the fuel cell circulating water pipe system can be transferred to the solid-state hydrogen storage circulating liquid pipe system, and the energy consumption of the heater in the solid-state hydrogen storage circulating liquid pipe system and the radiator in the fuel cell circulating water pipe system can be reduced to a certain extent.

[0027] It should be noted that the hydrogen is transmitted between the hydrogen storage device 4 and the fuel cell 2 through the external pipeline. The heat exchanger 1 is prior art, and is not fixed in the form of a heat exchanger, which can be a plate heat exchanger, a tube heat exchanger or other forms.

[0028] Optionally, the heat exchanger 1 comprises a first water inlet a, a second water outlet b, a second water inlet c and a first water outlet d, the heat exchange pipeline comprises a first pipeline and a second pipeline, one end of the first pipeline is connected with the first water inlet a, the other end is connected with the main circulating pipeline, the three-way valve 6 is arranged between the first pipeline and the main circulating pipeline, one end of the second pipeline is connected with the first water outlet d, the other end is connected with the main circulating pipeline, the one-way valve 7 is arranged on the second pipeline;

[0029] The solid-state hydrogen storage circulating liquid pipeline system comprises a third pipeline, a fourth pipeline and a fifth pipeline, one end of the third pipeline is connected with the second water outlet b, the other end is connected with the liquid inlet of the hydrogen storage device 4, one end of the fourth pipeline is connected with the liquid outlet of the hydrogen storage device 4, the other end is connected with the liquid inlet of the liquid storage tank 51, one end of the fifth pipeline is connected with the liquid outlet of the liquid storage tank 51, the other end is connected with the second water inlet c.

[0030] In the embodiment, combined with the accompanying drawings, the heat exchanger 1 is arranged between the fuel cell circulating water pipeline system and the solid-state hydrogen storage circulating liquid pipeline system, and heat exchange is realized between the fuel cell circulating water pipeline system and the solid-state hydrogen storage circulating liquid pipeline system. Figure 1 As shown in the figure, the heat exchanger 1 is arranged between the fuel cell circulating water pipeline system and the solid-state hydrogen storage circulating liquid pipeline system, and heat exchange is realized between the fuel cell circulating water pipeline system and the solid-state hydrogen storage circulating liquid pipeline system. Specifically, as the power of the fuel cell increases, the heat generated by the fuel cell is higher, and the temperature of the circulating water gradually rises. When the temperature exceeds the hydrogen release temperature of the hydrogen storage device 4, the valve position of the three-way valve 6 is adjusted to the second direction, the fuel cell circulating water flows through the heat exchanger 1 through the heat exchange pipeline and returns to the fuel cell inlet, and the heat exchanger 1 transfers the high temperature of the fuel cell circulating water to the solid-state hydrogen storage circulating liquid pipeline system. This process can reduce the heating power of the heater 52 in the solid-state hydrogen storage circulating liquid pipeline system, and also can reduce the energy consumption of the radiator 3 in the fuel cell circulating water pipeline system.

[0031] Optionally, the third pipeline is provided with a first temperature sensor 8, and the first temperature sensor 8 is located close to the liquid inlet of the hydrogen storage device 4.

[0032] In the embodiment, combined with the accompanying drawings, the heat exchanger 1 is arranged between the fuel cell circulating water pipeline system and the solid-state hydrogen storage circulating liquid pipeline system, and heat exchange is realized between the fuel cell circulating water pipeline system and the solid-state hydrogen storage circulating liquid pipeline system. Figure 1 As shown in the figure, the first temperature sensor 8 is arranged on the third pipeline, and the first temperature sensor 8 is located close to the liquid inlet of the hydrogen storage device 4. The first temperature sensor 8 can detect the temperature of the liquid flowing into the hydrogen storage device 4.

[0033] Optionally, the heater 52 comprises a heating rod, and the heating rod is arranged in the liquid storage tank 51 and used for heating the liquid in the liquid storage tank 51.

[0034] In the embodiment, combined with the accompanying drawings, the heat exchanger 1 is arranged between the fuel cell circulating water pipeline system and the solid-state hydrogen storage circulating liquid pipeline system, and heat exchange is realized between the fuel cell circulating water pipeline system and the solid-state hydrogen storage circulating liquid pipeline system. Figure 1 As shown in the figure, the liquid storage tank 51 is used for storing circulating liquid, and the heater 52 comprises a heating rod arranged in the liquid storage tank 51. The heating rod is used for heating the liquid in the liquid storage tank 51 by being electrified.

[0035] Optionally, the fifth pipeline is provided with a first circulating water pump 9, and the first circulating water pump 9 is located close to the liquid outlet of the liquid storage tank 51.

[0036] In the embodiment, the accompanying drawings are combined. Figure 1 As shown in the accompanying drawings, the fifth pipeline is provided with the first circulating water pump 9, and the first circulating water pump 9 is located close to the liquid outlet of the liquid storage tank 51. The first circulating water pump 9 is used to provide circulating power for the circulating liquid in the solid-state hydrogen storage circulating liquid pipeline system.

[0037] Optionally, the main circulating pipeline is provided with a second temperature sensor 10, and the second temperature sensor 10 is located close to the water outlet of the fuel cell 2.

[0038] The main circulating pipeline is provided with a third temperature sensor 11, and the third temperature sensor 11 is located close to the water inlet of the fuel cell 2.

[0039] In the embodiment, the accompanying drawings are combined. Figure 1 As shown in the accompanying drawings, the main circulating pipeline is provided with the second temperature sensor 10 and the third temperature sensor 11. The second temperature sensor 10 is located close to the water outlet of the fuel cell 2, and the third temperature sensor 11 is located close to the water inlet of the fuel cell 2. The second temperature sensor 10 is used to detect the circulating liquid temperature at the water outlet of the fuel cell 2, and the third temperature sensor 11 is used to detect the circulating liquid temperature at the water inlet of the fuel cell 2. The second temperature sensor 10 and the third temperature sensor 11 are used to determine whether the temperature difference between the inlet and outlet of the fuel cell 2 exceeds the working condition value of the fuel cell 2.

[0040] Optionally, the main circulating pipeline is provided with a second circulating water pump 12, and the second circulating water pump 12 is located between the fuel cell 2 and the three-way valve 6.

[0041] In the embodiment, the accompanying drawings are combined. Figure 1 As shown in the accompanying drawings, the main circulating pipeline is provided with the second circulating water pump 12, and the second circulating water pump 12 is located between the fuel cell 2 and the three-way valve 6. The second circulating water pump 12 is used to provide circulating power for the circulating liquid in the fuel cell circulating water pipeline system.

[0042] Optionally, the main circulating pipeline is provided with a flow meter 13.

[0043] In the embodiment, the accompanying drawings are combined. Figure 1 As shown in the accompanying drawings, the main circulating pipeline is provided with the flow meter 13, which is used to display the flow of the circulating liquid on the main circulating pipeline in real time.

[0044] Optionally, the three-way valve 6 is an electric three-way ball valve.

[0045] In the present embodiment, the three-way valve 6 is an electrically operated three-way ball valve, so that the three-way valve 6 can be adjusted by means of electrical control.

[0046] The terms "first", "second", etc. are used only for the purpose of description and should not be understood as indicating or implying relative importance or an indicated number of technical features. Thus, features defined with "first", "second", etc. can explicitly or implicitly include at least one of the features.

[0047] Although the utility model discloses as above, the protection scope of the utility model is not limited to this only.The person skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model, and these changes and modifications will all fall into the protection scope of the utility model.

Claims

1. A heat exchange system for solid state hydrogen storage and fuel cell, characterized in that, The application relates to a solid-state hydrogen storage circulating liquid pipeline system, a fuel cell circulating water pipeline system and a heat exchanger (1), wherein the fuel cell circulating water pipeline system comprises a main circulating pipeline and a heat exchange pipeline connected in parallel with the main circulating pipeline, a fuel cell (2) and a radiator (3) are arranged on the main circulating pipeline, a one-way valve (7) is arranged on the heat exchange pipeline, a three-way valve (6) is arranged between the main circulating pipeline and the heat exchange pipeline, the three-way valve (6) is used for adjusting whether circulating water in the main circulating pipeline flows through the heat exchange pipeline, the heat exchanger (1) is connected with the heat exchange pipeline and the solid-state hydrogen storage circulating liquid pipeline system respectively, and a hydrogen storage device (4) and a liquid storage tank (51) are arranged on the solid-state hydrogen storage circulating liquid pipeline system, and a heater (52) is arranged in the liquid storage tank (51). The heat exchanger (1) comprises a first water inlet (a), a second water outlet (b), a second water inlet (c) and a first water outlet (d), the heat exchange pipeline comprises a first pipeline and a second pipeline, one end of the first pipeline is connected with the first water inlet (a), the other end is connected with the main circulating pipeline, the three-way valve (6) is arranged between the first pipeline and the main circulating pipeline, one end of the second pipeline is connected with the first water outlet (d), the other end is connected with the main circulating pipeline, and the one-way valve (7) is arranged on the second pipeline.

2. The heat exchange system of claim 1, wherein, The solid-state hydrogen storage circulating liquid pipeline system comprises a third pipeline, a fourth pipeline and a fifth pipeline, one end of the third pipeline is connected with the second water outlet (b), the other end is connected with a liquid inlet of the hydrogen storage device (4), one end of the fourth pipeline is connected with a liquid outlet of the hydrogen storage device (4), the other end is connected with a liquid inlet of the liquid storage tank (51), one end of the fifth pipeline is connected with a liquid outlet of the liquid storage tank (51), and the other end is connected with the second water inlet (c). A first temperature sensor (8) is arranged on the third pipeline, and the first temperature sensor (8) is located close to the liquid inlet of the hydrogen storage device (4).

3. The heat exchange system of claim 2, wherein, The heater (52) comprises a heating rod arranged in the liquid storage tank (51) and used for heating liquid in the liquid storage tank (51).

4. The heat exchange system of claim 1, wherein, A first circulating water pump (9) is arranged on the fifth pipeline, and the first circulating water pump (9) is located close to the liquid outlet of the liquid storage tank (51).

5. The heat exchange system of claim 2, wherein, A second temperature sensor (10) is arranged on the main circulating pipeline, and the second temperature sensor (10) is located close to a water outlet of the fuel cell (2).

6. The heat exchange system of claim 1, wherein, A third temperature sensor (11) is arranged on the main circulating pipeline, and the third temperature sensor (11) is located close to a water inlet of the fuel cell (2).

7. The heat exchange system of claim 1, wherein, A second circulating water pump (12) is arranged on the main circulating pipeline, and the second circulating water pump (12) is located between the fuel cell (2) and the three-way valve (6).

8. The heat exchange system of claim 1, wherein, A flow meter (13) is arranged on the main circulating pipeline.

9. The heat exchange system of claim 1, wherein, The three-way valve (6) is an electric three-way ball valve.

10. The heat exchange system of claim 1-9, wherein, ​

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