A hydrogen fuel cell thermal management evaluation device

Abstract

The present invention discloses a hydrogen fuel cell thermal management evaluation device, comprising a stainless steel tank, a PTC heater fixed to one side of the auxiliary heating tank, the top of the auxiliary heating tank connected to a simulated heating mechanism via a second water pipe, the top of the simulated heating mechanism connected to the stainless steel tank via a recovery pipe, and a second temperature sensor fixed to the recovery pipe. In this hydrogen fuel cell thermal management evaluation device, after placing the radiator on a support plate, the turntable rotates counterclockwise, and the four clamps approach each other to facilitate clamping and fixing the radiator. High-temperature liquid can circulate in the water channel, and the heat conducting plate can conduct heat in the liquid to the radiator, facilitating the simulation of the high temperature during fuel cell operation. The second temperature sensor can detect the temperature in the recovery pipe, facilitating the rapid evaluation of the radiator's maximum heat dissipation power. By controlling the operation of the heating rod and the PTC heater, the radiator's heat dissipation under different ambient temperatures can be evaluated.

Description

Technical Field

[0001] The present invention relates to the technical field related to hydrogen fuel cells, and in particular to a hydrogen fuel cell thermal management evaluation device. Background Art

[0002] The raw materials for fuel cell power generation are hydrogen and oxygen. Electrochemical reactions occur inside the fuel cell to generate water, release heat, and output electricity. The current efficiency of fuel cell systems is about 50%-60% (it may be lower or higher). Although the efficiency is much higher than traditional gasoline and diesel internal combustion generators, since the rest of the energy is converted into heat, effective thermal management temperature control has a significant impact on the durability, stability, reaction efficiency, and life of the fuel cell. Therefore, in-depth research on fuel cell thermal management systems is of great significance.

[0003] There are currently no dedicated facilities for evaluating the heat dissipation capacity of existing fuel cell thermal management systems. System integration is required to determine whether the heat dissipation capacity is met. This is especially true for heat dissipation power under high-temperature ambient conditions. Actual operation is required to determine whether the heat dissipation capacity is met. This results in a long test cycle, significant investment in manpower and material resources, low efficiency, and a long R&D cycle. To address these issues, existing equipment needs to be improved. Summary of the Invention

[0004] The purpose of the present invention is to provide a hydrogen fuel cell thermal management evaluation device to solve the problem raised in the above background technology that there is no dedicated facility for evaluating the heat dissipation capacity of the existing fuel cell thermal management system, and whether the heat dissipation capacity is met can only be known after integration with the system. In particular, for the heat dissipation power under high-temperature ambient temperature conditions, whether the heat dissipation capacity is met can only be known during actual operation. In this way, the test time period is long, a large amount of manpower and material resources are required, the efficiency is low, and the R&D cycle is long.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a hydrogen fuel cell thermal management evaluation device, comprising a stainless steel tank, an electric water valve fixed on one side of the stainless steel tank, a heating rod fixed on the inner bottom of the stainless steel tank, a stirring column rotatably connected to the bottom of the stainless steel tank, and an electric pressure relief valve fixed on the other side of the stainless steel tank.

[0006] A simulated heating mechanism is fixed on the top of the stainless steel tank, a water pump is fixed on the other side of the stainless steel tank, one side of the water pump is connected to the auxiliary heating tank through a first water supply pipe, the auxiliary heating tank is fixed on the other side of the stainless steel tank, a PTC heater is fixed on one side of the auxiliary heating tank, the top of the auxiliary heating tank is connected to the simulated heating mechanism through a second water supply pipe, the top of the simulated heating mechanism is connected to the stainless steel tank through a recovery pipe, and a second temperature sensor is fixed on the recovery pipe.

[0007] Preferably, a first motor is fixed to the bottom of the stainless steel tank, and the top of the first motor is connected to the stirring column.

[0008] By adopting the above technical solution, the stirring column can be rotated, which is convenient for automatically stirring the coolant.

[0009] Preferably, a first temperature sensor is fixed on the other side of the stainless steel tank, and a pressure sensor is fixed on the inner wall of the other side of the stainless steel tank.

[0010] By adopting the above technical solution, the first temperature sensor and the pressure sensor can be used to detect temperature and pressure.

[0011] Preferably, the simulated heating mechanism includes a support plate, and the support plate is fixed on the top of the stainless steel tank. A slide is provided on the support plate, and a limiting rod is fixed in the slide. A splint is slidably connected in the slide, and the limiting rod passes through the splint.

[0012] By adopting the above technical solution, the slideway and the limiting rod play a limiting role during the sliding process of the splint.

[0013] Preferably, the clamping plate is connected to the inner wall of the slideway via a compression spring, and the compression spring is wrapped around the outer side of the limiting rod.

[0014] By adopting the above technical solution, the turntable can be rotated to squeeze the clamping plates using the extrusion plate before loading. After the loading operation is completed, the turntable rotates and the four clamping plates approach each other, making it easier to clamp and fix the radiator.

[0015] Preferably, one end surface of the splint is provided with tooth grooves, and the tooth grooves are evenly spaced on the splint. Four splints are provided, and the four splints are evenly distributed circumferentially on the support plate.

[0016] By adopting the above technical solution, the radiator can be better clamped by using four clamping plates at the same time.

[0017] Preferably, a water channel is placed on the outer side of the clamping plate, and the water channel is fixed to the clamping plate through a support rod, and two adjacent water channels are connected by a connecting pipe.

[0018] By adopting the above technical solution, after adjusting the height of the water passage, the water passage can be tightly fixed by using the supporting rod.

[0019] Preferably, a heat conducting sheet is fixed to the inner end surface of the water passage, and the heat conducting sheets are distributed on the water passage in a rectangular array.

[0020] By adopting the above technical solution, the heat conducting sheet can play a role in heat conduction.

[0021] Preferably, a second motor is fixed in the support plate, and the bottom of the second motor is connected to the turntable, an extrusion plate and a tooth plate are fixed on the outside of the turntable, and the extrusion plate and the clamping plate are arranged in a one-to-one correspondence, and the tooth plate and the clamping plate are arranged in a one-to-one correspondence.

[0022] By adopting the above technical solution, after the radiator is clamped and fixed by the clamping plate, the clamping plate can be locked by using the tooth plate and the tooth groove.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The hydrogen fuel cell thermal management evaluation device can achieve the purpose of clamping and simulating high-temperature evaluation through the coordinated use of the support plate, clamping plate, water channel, heat conducting plate, turntable, extrusion plate, recovery pipe and second temperature sensor. Before loading, the turntable rotates clockwise, the extrusion plate squeezes the clamping plate to move, and the four clamping plates move away from each other. After the radiator is placed on the support plate, the turntable rotates counterclockwise, and the four clamping plates move closer to each other, which is convenient for clamping and fixing the radiator. The high-temperature liquid can circulate in the water channel, and the heat conducting plate can transfer the heat in the liquid to the radiator, which is convenient for simulating the high temperature during fuel cell operation. The second temperature sensor can detect the temperature in the recovery pipe, which is convenient for quickly evaluating the maximum heat dissipation power of the radiator. By controlling the operation of the heating rod and the PTC heater, the heat dissipation of the radiator under different ambient temperatures can be evaluated.

[0025] 2. This hydrogen fuel cell thermal management evaluation device achieves uniform heating through the coordinated use of a stainless steel tank, heating rod, and stirring column. When the heating rod heats the coolant in the stainless steel tank, the stirring column rotates to automatically stir the liquid, ensuring uniform and efficient heating of the coolant.

[0026] 3. The hydrogen fuel cell thermal management evaluation device can achieve the purpose of auxiliary heating through the coordinated use of the heating rod, the first water pipeline, the auxiliary heating tank, the PTC heater and the second water pipeline. When the liquid is transported by the first water pipeline and the second water pipeline, the liquid will pass through the auxiliary heating tank. The PTC heater can heat the coolant while assisting the heating rod, thereby facilitating the increase of the heating rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the front cross-sectional structure of the present invention;

[0028] Figure 2 For the present invention Figure 1 A in the middle is an enlarged structural diagram;

[0029] Figure 3 It is a schematic diagram of a top cross-sectional structure of the present invention;

[0030] Figure 4 This is a schematic diagram of the connection structure of the support plate, slideway, clamping plate, compression spring, turntable, extrusion plate and tooth plate of the present invention;

[0031] Figure 5 It is a schematic diagram of the connection structure between the splint and the tooth groove of the present invention.

[0032] In the figure: 1. Stainless steel tank; 2. Electric water valve; 3. Heating rod; 4. First motor; 5. Stirring column; 6. First temperature sensor; 7. Pressure sensor; 8. Electric pressure relief valve; 9. Simulated heating mechanism; 901. Support plate; 902. Slide; 903. Limit rod; 904. Clamp; 905. Compression spring; 906. Tooth groove; 907. Water channel; 908. Push rod; 909. Connecting pipe; 910. Heat conducting plate; 911. Second motor; 912. Turntable; 913. Extrusion plate; 914. Tooth plate; 10. Water pump; 11. First water supply pipeline; 12. Auxiliary heating tank; 13. PTC heater; 14. Second water supply pipeline; 15. Recovery pipeline; 16. Second temperature sensor. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0034] See also Figures 1 to 5 The present invention provides a technical solution: a hydrogen fuel cell thermal management evaluation device, comprising a stainless steel tank 1, an electric water valve 2 fixed on one side of the stainless steel tank 1, a heating rod 3 fixed on the inner bottom of the stainless steel tank 1, a stirring column 5 rotatably connected to the bottom of the stainless steel tank 1, and an electric pressure relief valve 8 fixed on the other side of the stainless steel tank 1.

[0035] A simulated heating mechanism 9 is fixed on the top of the stainless steel tank 1, and a water pump 10 is fixed on the other side of the stainless steel tank 1. One side of the water pump 10 is connected to the auxiliary heating tank 12 through a first water supply pipe 11. The auxiliary heating tank 12 is fixed on the other side of the stainless steel tank 1. A PTC heater 13 is fixed on one side of the auxiliary heating tank 12. The top of the auxiliary heating tank 12 is connected to the simulated heating mechanism 9 through a second water supply pipe 14. The top of the simulated heating mechanism 9 is connected to the stainless steel tank 1 through a recovery pipe 15. A second temperature sensor 16 is fixed on the recovery pipe 15.

[0036] In this embodiment, Figure 1As shown, a first motor 4 is fixed to the bottom of the stainless steel tank 1, and the top of the first motor 4 is connected to the stirring column 5. When the coolant in the stainless steel tank 1 is heated by the heating rod 3, the stirring column 5 can rotate under the action of the first motor 4, so that the heating effect is more comprehensive and uniform.

[0037] In this embodiment, Figure 1 As shown, a first temperature sensor 6 is fixed on the other side of the stainless steel tank 1, and a pressure sensor 7 is fixed on the inner wall of the other side of the stainless steel tank 1. The first temperature sensor 6 can be used to detect the temperature of the coolant in the stainless steel tank 1, and the pressure sensor 7 can detect the pressure in the stainless steel tank 1 in real time.

[0038] In this embodiment, Figure 1 and Figure 2 As shown, the simulated heating mechanism 9 includes a support plate 901, and the support plate 901 is fixed on the top of the stainless steel tank 1. A slide 902 is provided on the support plate 901, and a limiting rod 903 is fixed in the slide 902. A splint 904 is slidably connected in the slide 902. The limiting rod 903 passes through the splint 904, and the splint 904 can slide in the slide 902. The limiting rod 903 limits the splint 904. The compression spring 905 and the splint 904 are used in combination to clamp and fix the radiator.

[0039] In this embodiment, Figure 1 、 Figure 2 and Figure 3 As shown, the clamping plate 904 is connected to the inner wall of the slide 902 through the compression spring 905, and the compression spring 905 is wrapped around the outer side of the limit rod 903. After pushing the clamping plate 904 and placing the radiator between the four clamping plates 904, the clamping plate 904 can be loosened. The clamping plate 904 can automatically press against the radiator under the action of the compression spring 905, making it convenient to clamp and fix the radiator.

[0040] In this embodiment, Figure 1 、 Figure 2 、 Figure 3 and Figure 5 As shown, one end face of the clamping plate 904 is provided with a tooth groove 906, and the tooth grooves 906 are evenly spaced on the clamping plate 904. There are four clamping plates 904, and the four clamping plates 904 are evenly distributed circumferentially on the support plate 901. Using four clamping plates 904 at the same time can clamp the radiator more firmly and stably.

[0041] In this embodiment, Figure 1 and Figure 2As shown, a water channel 907 is placed on the outer side of the splint 904, and the water channel 907 is fixed to the splint 904 by a push rod 908, and two adjacent water channels 907 are connected by a connecting pipe 909. After adjusting the height of the water channel 907 according to the size of the radiator, the push rod 908 can be used to tighten and fix the water channel 907, and the connecting pipe 909 serves to connect the two adjacent water channels 907.

[0042] In this embodiment, Figure 1 、 Figure 2 and Figure 3 As shown, a heat conducting sheet 910 is fixed to the inner end face of the water channel 907, and the heat conducting sheets 910 are distributed in a rectangular array on the water channel 907. The heat conducting sheets 910 play a role of heat conduction, which facilitates the heat of the liquid in the water channel 907 to be transferred to the radiator, and facilitates the role of simulating high temperature. The heat conducting sheets 910 distributed in a rectangular array can make the heat conduction effect better.

[0043] In this embodiment, Figure 1 、 Figure 2 and Figure 4 As shown, a second motor 911 is fixed in the support plate 901, and the bottom of the second motor 911 is connected to the turntable 912, and an extrusion plate 913 and a tooth plate 914 are fixed to the outside of the turntable 912, and the extrusion plate 913 and the clamping plate 904 are arranged in a one-to-one correspondence, and the tooth plate 914 and the clamping plate 904 are arranged in a one-to-one correspondence. After the radiator is clamped and fixed by using the clamping plate 904 and the compression spring 905, the turntable 912 can rotate under the action of the second motor 911, and the tooth plate 914 is engaged and connected with the corresponding tooth groove 906 to facilitate locking the clamping plate 904.

[0044] The use method and advantages of the present invention: The working process of the hydrogen fuel cell thermal management evaluation device is as follows:

[0045] like Figures 1 to 5As shown: first, after the radiator is placed on the support plate 901, the turntable 912 rotates, and the clamping plate 904 moves under the support of the clamping plate 904. After the four clamping plates 904 are used to clamp and fix the radiator, the tooth plate 914 is engaged with the tooth groove 906 on the corresponding clamping plate 904 to lock the clamping plate 904. Coolant is introduced into the stainless steel tank 1. While the heating rod 3 is used to heat the coolant, the stirring column 5 rotates to stir the coolant. The turntable 912 rotates, and the squeezing plate 913 squeezes the clamping plate 904 to move outward. The liquid can be in the stainless steel tank 1 and the first water pipeline. 11. The auxiliary heating tank 12, the second water supply pipe 14, the connecting pipe 909 and the recovery pipe 15 circulate. The PTC heater 13 is used to assist the heating rod 3 inside the stainless steel tank 1 under low temperature conditions, and at the same time heat the coolant to increase the heating rate. The heat conducting plate 910 can transfer the heat of the liquid in the water channel 907 to the radiator to facilitate the simulation of high temperature. The second temperature sensor 16 can detect the temperature in the recovery pipe 15, thereby determining whether the radiator controls the return water temperature within the specified temperature range. If it cannot be controlled within the range of ±5°C, it means that the heat dissipation capacity of the radiator does not meet the requirements.

[0046] In summary, the hydrogen fuel cell thermal management evaluation device achieves the purpose of clamping and fixing, simulating high-temperature evaluation, uniform heating and auxiliary heating, and meets people's usage needs.

[0047] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydrogen fuel cell thermal management evaluation device, comprising a stainless steel tank (1), characterized in that: An electric water valve (2) is fixed to one side of the stainless steel tank (1), a heating rod (3) is fixed to the inner bottom of the stainless steel tank (1), a stirring column (5) is rotatably connected to the bottom of the stainless steel tank (1), and an electric pressure relief valve (8) is fixed to the other side of the stainless steel tank (1); A simulated heating mechanism (9) is fixed on the top of the stainless steel tank (1), and the simulated heating mechanism (9) includes a support plate (901), and the support plate (901) is fixed on the top of the stainless steel tank (1), and the radiator is placed on the support plate (901), and a slideway (902) is provided on the support plate (901), and a limit rod (903) is fixed in the slideway (902), and a clamping plate (904) is slidably connected in the slideway (902), and the limit rod (903) passes through the clamping plate (904), and a water channel (907) is placed on the outer side of the clamping plate (904), and the water channel (907) is fixed on the clamping plate (904) through a stop rod (908), and two adjacent water channels (907) are connected by a connecting pipe (909), and the water channel ( A heat conducting sheet (910) is fixed to the inner end surface of the stainless steel tank (907), and the heat conducting sheets (910) are distributed in a rectangular array on the water passage (907). A water pump (10) is fixed to the other side of the stainless steel tank (1), and one side of the water pump (10) is connected to the auxiliary heating tank (12) through a first water delivery pipe (11). The auxiliary heating tank (12) is fixed to the other side of the stainless steel tank (1). A PTC heater (13) is fixed to one side of the auxiliary heating tank (12). The top of the auxiliary heating tank (12) is connected to the simulated heating mechanism (9) through a second water delivery pipe (14). The top of the simulated heating mechanism (9) is connected to the stainless steel tank (1) through a recovery pipe (15). A second temperature sensor (16) is fixed to the recovery pipe (15).

2. A hydrogen fuel cell thermal management evaluation device according to claim 1, characterized in that: A first motor (4) is fixed to the bottom of the stainless steel tank (1), and the top of the first motor (4) is connected to a stirring column (5).

3. The hydrogen fuel cell thermal management evaluation device according to claim 1, characterized in that: A first temperature sensor (6) is fixed on the other side of the stainless steel tank (1), and a pressure sensor (7) is fixed on the inner wall of the other side of the stainless steel tank (1).

4. The hydrogen fuel cell thermal management evaluation device according to claim 1, characterized in that: The clamping plate (904) is connected to the inner wall of the slideway (902) via a compression spring (905), and the compression spring (905) is wrapped around the outer side of the limiting rod (903).

5. The hydrogen fuel cell thermal management evaluation device according to claim 1, characterized in that: One end surface of the splint (904) is provided with tooth grooves (906), and the tooth grooves (906) are evenly spaced on the splint (904). Four splints (904) are provided, and the four splints (904) are evenly distributed circumferentially on the support plate (901).

6. The hydrogen fuel cell thermal management evaluation device according to claim 1, characterized in that: A second motor (911) is fixed inside the support plate (901), and the bottom of the second motor (911) is connected to the turntable (912). An extrusion plate (913) and a tooth plate (914) are fixed to the outside of the turntable (912), and the extrusion plate (913) and the clamping plate (904) are arranged in a one-to-one correspondence, and the tooth plate (914) and the clamping plate (904) are arranged in a one-to-one correspondence.

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