Rapid heat exchange device for solid hydrogen storage material

Abstract

The utility model provides a quick heat exchange device for a solid hydrogen storage material, comprising: a battery main body, in which a hydrogen storage material is arranged; the interior of the heat exchange shell is hollow, a refrigerant guide pipe is arranged on the inner wall of the heat exchange shell, an opening is formed in the side, facing the axis of the heat exchange shell, of the refrigerant guide pipe, a refrigerant inlet and a refrigerant outlet which communicate with the refrigerant guide pipe are formed in the outer wall of the heat exchange shell, and the heat exchange shell can be coaxially arranged outside the battery body in a sleeving mode; and after the heat exchange shell is arranged outside the battery main body in a sleeving manner, the outer wall of the battery main body blocks the opening of the refrigerant guide pipe, so that the refrigerant guide pipe forms a sealed refrigerant passage. According to the heat exchange device provided by the invention, the refrigerant can directly act on the side wall of the battery main body, so that rapid heat exchange of the hydrogen storage material in the battery is realized.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of fuel cell technology, in particular to a rapid heat exchange device for solid-state hydrogen storage material. BACKGROUND

[0002] As a high-efficiency and clean energy conversion device, hydrogen fuel cell has attracted wide attention in recent years in the fields of new energy vehicles, portable power sources and distributed energy storage. Its working principle is based on the synergistic effect of solid-state hydrogen storage material and fuel cell, and the energy storage and release are realized through the adsorption and desorption of hydrogen. However, in the process of hydrogen adsorption and desorption, the chemical reaction between hydrogen storage material and hydrogen gas will be accompanied by a sharp change in heat, resulting in a sharp rise or drop in the temperature of the battery. If the battery cannot be heat exchanged in time, it will seriously affect the efficiency of hydrogen adsorption and desorption.

[0003] The heat exchange of the battery is usually realized by external heat exchange device. The traditional heat exchange device uses air cooling or liquid coolant for heat exchange. The air cooling heat exchange is noisy, and the liquid coolant heat exchange usually places the coolant in the pipeline. Since the liquid coolant cannot directly contact the battery in the pipeline, the heat exchange efficiency is low. CONTENT OF THE INVENTION

[0004] In view of the above-mentioned defects or shortcomings in the prior art, it is desirable to provide a rapid heat exchange device for solid-state hydrogen storage material to solve the above-mentioned problems.

[0005] The present application provides a rapid heat exchange device for solid-state hydrogen storage material, comprising:

[0006] a battery main body, wherein the battery main body is internally provided with hydrogen storage material;

[0007] a heat exchange shell, wherein the heat exchange shell is hollow inside and provided with a coolant guide pipe on the inner wall, the coolant guide pipe is open to one side of the axis of the heat exchange shell, the outer wall of the heat exchange shell is provided with a coolant inlet and a coolant outlet which are in communication with the coolant guide pipe, and the heat exchange shell can be coaxially sleeved outside the battery main body;

[0008] After the heat exchange shell is sleeved outside the battery main body, the outer wall of the battery main body blocks the opening of the coolant guide pipe, so that the coolant guide pipe forms a sealed coolant passage.

[0009] According to the technical scheme provided by the embodiment of the present application, the coolant guide pipe is made of elastic material, the outer wall of the battery main body is provided with a clamping groove corresponding to the wall of the coolant guide pipe, and after the heat exchange shell is sleeved outside the battery main body, the wall of the coolant guide pipe is inserted into the clamping groove.

[0010] According to the technical solution provided in the embodiments of this application, the refrigerant guide pipe extends in a spiral shape around the axis of the heat exchange shell.

[0011] According to the technical solution provided in the embodiments of this application, the outer wall of the battery body near the front end is provided with an external thread, and the inner wall of the heat exchange shell near the front end is provided with a corresponding internal thread. The battery body and the heat exchange shell are axially locked through the internal thread and the external thread.

[0012] According to the technical solution provided in the embodiments of this application, a pressure block is provided on the outer wall of the battery body near the front end, and the external thread is provided on the outer peripheral side of the pressure block. When the battery body is axially locked with the heat exchange shell, the pressure block squeezes the refrigerant guide pipe so that the pipe wall of the refrigerant guide pipe extends radially along the heat exchange shell.

[0013] According to the technical solution provided in the embodiments of this application, a plurality of spacers are installed on the inner wall of the heat exchange shell. The spacers are slidable along the axial direction of the heat exchange shell. The spacers are disposed between two sections of the refrigerant guide pipes arranged along the axial direction of the heat exchange shell. The spacers are fixedly connected to the outer walls of the refrigerant guide pipes on both sides.

[0014] According to the technical solution provided in the embodiments of this application, an elastic sealing ring is provided in the card slot.

[0015] According to the technical solution provided in the embodiments of this application, an elastic buffer block is provided on the inner bottom wall of the heat exchange shell.

[0016] According to the technical solution provided in the embodiments of this application, the sidewall of the battery body is made of a material with high thermal conductivity.

[0017] Compared with existing technologies, the advantages of this application are as follows: By coaxially sleeved the heat exchange shell around the battery body and sealing the refrigerant guide pipe opening with the outer wall of the battery body to form a sealed refrigerant passage, the refrigerant directly contacts the battery sidewall for heat exchange. Compared with the traditional external refrigerant pipeline advanced heat exchange method, this design significantly shortens the heat conduction path and increases the effective contact area between the refrigerant and the battery body, thereby greatly improving the heat exchange efficiency of the hydrogen storage material; in addition, the formation of the sealed passage avoids the risk of refrigerant leakage and enhances the stability and reliability of the system; the coaxial sleeve structure simplifies the device assembly process and facilitates quick disassembly and maintenance. Attached Figure Description

[0018] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the structure of the battery body in this application;

[0020] Figure 2 The structure schematic diagram of the heat exchange shell in the application;

[0021] Figure 3 The assembly schematic diagram of the heat exchange device provided in the application;

[0022] Figure 4 The structure schematic diagram of the heat exchange device provided in the application; Figure 3 The enlarged schematic diagram of A in the application;

[0023] Figure 5 The structure schematic diagram of the heat exchange device provided in the application; Figure 3 The schematic diagram of the rotation locking of the heat exchange device shown in the application;

[0024] Figure 6 The structure schematic diagram of the heat exchange device provided in the application; Figure 5 The enlarged schematic diagram of B in the application.

[0025] Corresponding reference signs: 100, battery body; 101, hydrogen storage material; 102, clamping groove; 103, external thread; 104, pressing block; 105, gas guide port; 200, heat exchange shell; 201, refrigerant guide pipe; 202, refrigerant inlet; 203, refrigerant outlet; 204, internal thread; 205, spacing block; 206, guide groove; 207, elastic buffer block. DETAILED DESCRIPTION

[0026] The application will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related application, and are not a limitation on the application. In addition, it should be noted that only the parts related to the application are shown in the drawings for ease of description.

[0027] It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other without conflict. The application will be described in detail below with reference to the accompanying drawings and embodiments.

[0028] Please refer to Figures 1-6 The application provides a rapid heat exchange device for solid hydrogen storage material, which comprises:

[0029] A battery body 100, wherein the battery body 100 is internally provided with a hydrogen storage material 101;

[0030] A heat exchange shell 200, wherein the heat exchange shell 200 is hollow inside and provided with a refrigerant guide pipe 201 on the inner wall, the refrigerant guide pipe 201 is open to one side of the axis of the heat exchange shell 200, the outer wall of the heat exchange shell 200 is provided with a refrigerant inlet 202 and a refrigerant outlet 203 which are in communication with the refrigerant guide pipe 201, and the heat exchange shell 200 can be coaxially sleeved outside the battery body 100;

[0031] After the heat exchange shell 200 is sleeved outside the battery body 100, the opening of the refrigerant guide pipe 201 is blocked by the outer wall of the battery body 100, so that the refrigerant guide pipe 201 forms a sealed refrigerant passage.

[0032] Specifically, the battery body 100 is a cylindrical shell and is smooth on the outside, the battery body 100 is hollow on the inside, the battery body 100 internally contains solid hydrogen storage material 101, and the hydrogen storage material 101 is optionally a metal hydride; the front end of the battery body 100 is provided with a gas guide port 105 in communication with the inside thereof, the gas guide port 105 is used for the flow of hydrogen during hydrogen charging and hydrogen release, and the position of the gas guide port 105 is switchable. The valve belongs to the prior art, so it is not embodied in the drawings, and the type of the valve can be selected according to the needs.

[0033] The heat exchange shell 200 is a hollow cylinder, the bottom of the heat exchange shell 200 is sealed and the head is open, the heat exchange shell 200 can be sleeved outside the battery body 100, and the heat exchange shell 200 is coaxially arranged with the battery body 100 when sleeved; the inner wall of the heat exchange shell 200 is fixed with a refrigerant guide pipe 201 along the circumference, the refrigerant guide pipe 201 is open to the side of the axis of the heat exchange shell 200, and the refrigerant guide pipe 201 has a U-shaped cross section. The outer wall of the heat exchange shell 200 is welded or integrally formed with a refrigerant inlet 202 and a refrigerant outlet 203, wherein the refrigerant inlet 202 is arranged at one end close to the tail of the heat exchange shell 200, and the refrigerant outlet 203 is arranged at one end close to the head of the heat exchange shell 200; the refrigerant inlet 202 and the refrigerant outlet 203 are respectively in communication with the two ends of the refrigerant guide pipe 201. The refrigerant guide pipe 201 cannot guide the refrigerant before the heat exchange shell 200 is assembled with the battery body 100.

[0034] The assembly process is as follows: the head of the battery body 100 with the heat exchange shell 200 is inserted, the opening of the refrigerant guide pipe 201 is covered by the outer wall of the battery body 100 during the insertion process, and when the battery body 100 is completely inserted into the heat exchange shell 200, the battery body 100 completely covers the opening of the refrigerant guide pipe 201, so that the refrigerant guide pipe 201 cooperates with the outer wall of the battery body 100 to form a closed refrigerant passage; the refrigerant inlet 202 and the refrigerant outlet 203 are communicated with the refrigerant circulating device, the refrigerant flows into the refrigerant inlet 202, flows along the refrigerant guide pipe 201, and finally flows out of the refrigerant outlet 203. When the refrigerant flows, it directly contacts the outer wall of the battery body 100, and then takes away the heat transferred to the side wall of the battery body 100 by the hydrogen storage material 101, thereby improving the heat exchange efficiency of the hydrogen storage material 101.

[0035] Further, the refrigerant guide pipe 201 is made of elastic material, and the outer wall of the battery body 100 is provided with a clamping groove 102 corresponding to the pipe wall of the refrigerant guide pipe 201. After the heat exchange shell 200 is sleeved on the outside of the battery body 100, the pipe wall of the refrigerant guide pipe 201 is inserted into the clamping groove 102.

[0036] Specifically, the refrigerant guide pipe 201 made of elastic material can better seal when in contact with the outer wall of the battery body 100, and can also facilitate the insertion of the battery body 100 into the heat exchange shell 200. To further improve the sealing of the refrigerant passage, a plurality of clamping grooves 102 are provided on the outer side wall of the battery body 100. When the battery body 100 is completely inserted into the heat exchange shell 200, the refrigerant guide pipe 201 at all positions is inserted into the corresponding clamping groove 102. The clamping groove 102 makes the refrigerant guide pipe 201 fit more closely with the outer wall of the battery body 100, thereby improving the sealing of the refrigerant passage.

[0037] Further, the refrigerant guide pipe 201 extends spirally around the axis of the heat exchange shell 200.

[0038] Specifically, the clamping groove 102 also extends spirally on the outer wall of the battery body 100, so that the refrigerant passage is spirally shaped. The spiral-shaped refrigerant passage can increase the flow path of the refrigerant around the battery body 100, thereby increasing the contact area between the refrigerant and the outer wall of the battery body 100, and further improving the heat exchange efficiency.

[0039] Further, the outer wall of the battery body 100 near the front end is provided with an external thread 103, and the inner wall of the heat exchange shell 200 near the front end is provided with a corresponding internal thread 204. The battery body 100 and the heat exchange shell 200 are axially locked by the internal thread 204 and the external thread 103.

[0040] Specifically, the battery body 100 and the heat exchange shell 200 are connected by threads to achieve quick assembly and disassembly. When the battery body 100 is installed by threads, the battery body 100 produces an axial relative position with respect to the heat exchange shell 200, so that the battery body 100 and the heat exchange shell 200 produce an axial locking force.

[0041] Further, the outer wall of the battery body 100 near the front end is provided with a pressing block 104, and the external thread 103 is arranged on the outer circumferential side of the pressing block 104. When the battery body 100 and the heat exchange shell 200 are axially locked, the pressing block 104 extrudes the refrigerant guide pipe 201, so that the pipe wall of the refrigerant guide pipe 201 extends along the radial direction of the heat exchange shell 200.

[0042] Specifically, the radial dimension of the pressing block 104 is smaller than the radial dimension of the front end of the battery body 100, and the external thread 103 is arranged on the axial side wall of the pressing block 104. When the battery body 100 is installed into the heat exchange shell 200, the pressing block 104 is hidden inside the heat exchange shell 200, and the front end of the battery body 100 blocks the opening of the head of the heat exchange shell 200. While the battery body 100 and the heat exchange shell 200 are axially locked by the thread, the pressing block 104 is in contact with the refrigerant guide pipe 201 and continuously axially extrudes it. Since the refrigerant guide pipe 201 is made of elastic material, the refrigerant guide pipe 201 is deformed radially, so that the extrusion between the refrigerant guide pipe 201 and the clamping groove 102 is stronger, and the sealing effect between them is better.

[0043] Further, the inner wall of the heat exchange shell 200 is provided with a plurality of spacing blocks 205, which are slidable along the axial direction of the heat exchange shell 200. The spacing block 205 is arranged between the two refrigerant guide pipes 201 arranged along the axial direction of the heat exchange shell 200, and the spacing block 205 is fixedly connected with the outer walls of the refrigerant guide pipes 201 on both sides.

[0044] Specifically, a guide groove 206 is arranged on the inner wall of the heat exchange shell 200 corresponding to each spacing block 205, and the spacing block 205 is slidingly installed in the guide groove 206. The guide groove 206 is used to guide the movement of the spacing block 205. The spacing block 205 is fixed with the refrigerant guide pipes 201 on the upper and lower sides, which limits the position of the refrigerant guide pipes 201 in the heat exchange shell 200, and avoids affecting the mutual extrusion between the refrigerant guide pipes 201 of adjacent layers.

[0045] Further, an elastic sealing ring is arranged in the clamping groove 102.

[0046] Specifically, the elastic sealing ring is attached to the inner wall of the clamping groove 102. By arranging the elastic sealing ring in the clamping groove 102, the sealing performance of the refrigerant passage can be further improved. The elastic sealing ring is not shown in the drawings.

[0047] Further, an elastic buffer block 207 is arranged on the inner bottom wall of the heat exchange shell 200.

[0048] Specifically, the elastic buffer block 207 can be sponge or rubber pad, which is used to limit the insertion position of the battery body 100 and also buffers the insertion process of the battery body 100.

[0049] Further, the side wall of the battery body 100 is made of high thermal conductivity material.

[0050] Specifically, the battery body 100 of high-thermal-conductivity material can improve the heat exchange efficiency between the hydrogen storage material 101 and the refrigerant. Optionally, the side wall of the battery body 100 is made of aluminum alloy material.

[0051] The above description is merely preferred embodiments of the present application and a description of the principles of the technology used. It should be understood by those skilled in the art that the scope of the application involved in the present application is not limited to the technical solutions formed by the specific combinations of the above technical features, and also covers other technical solutions formed by any combination of the above technical features or equivalent features without departing from the inventive concept. For example, the above features are replaced with each other to form a technical solution with similar functions disclosed in the present application (but not limited to).

Claims

1. A rapid heat exchange device for solid state hydrogen storage material, characterized in that, The application relates to a hydrogen battery, which comprises the following parts: a battery body (100) with a hydrogen storage material (101) built-in; a heat exchange shell (200) with a hollow interior and an inner wall provided with a refrigerant guide pipe (201) which is open to one side of the axis of the heat exchange shell (200), and an outer wall of the heat exchange shell (200) is provided with a refrigerant inlet (202) and a refrigerant outlet (203) which are in communication with the refrigerant guide pipe (201), and the heat exchange shell (200) can be coaxially sleeved outside the battery body (100); after the heat exchange shell (200) is sleeved outside the battery body (100), the outer wall of the battery body (100) blocks the opening of the refrigerant guide pipe (201), so that the refrigerant guide pipe (201) forms a sealed refrigerant passage.

2. The rapid heat exchange device for solid-state hydrogen storage material according to claim 1, wherein The refrigerant guide pipe (201) is made of elastic material, and the outer wall of the battery body (100) is provided with a clamping groove (102) corresponding to the pipe wall of the refrigerant guide pipe (201), and after the heat exchange shell (200) is sleeved outside the battery body (100), the pipe wall of the refrigerant guide pipe (201) is inserted into the clamping groove (102).

3. The rapid heat exchange device for solid-state hydrogen storage material according to claim 2, wherein, The refrigerant guide pipe (201) extends spirally around the axis of the heat exchange shell (200).

4. The rapid heat exchange device for solid-state hydrogen storage material according to claim 3, wherein The outer wall of the battery body (100) near the front end is provided with an external thread (103), and the inner wall of the heat exchange shell (200) near the front end is provided with a corresponding internal thread (204), and the battery body (100) and the heat exchange shell (200) are axially locked through the internal thread (204) and the external thread (103).

5. The rapid heat exchange device for solid-state hydrogen storage material according to claim 4, wherein The outer wall of the battery body (100) near the front end is provided with a pressing block (104), and the external thread (103) is arranged on the outer circumferential side of the pressing block (104), and when the battery body (100) and the heat exchange shell (200) are axially locked, the pressing block (104) extrudes the refrigerant guide pipe (201), so that the pipe wall of the refrigerant guide pipe (201) extends along the radial direction of the heat exchange shell (200).

6. The rapid heat exchange device for solid-state hydrogen storage material of claim 5, wherein, The inner wall of the heat exchange shell (200) is provided with a plurality of spacing blocks (205) which can slide along the axial direction of the heat exchange shell (200), the spacing blocks (205) are arranged between two refrigerant guide pipes (201) arranged along the axial direction of the heat exchange shell (200), and the spacing blocks (205) are fixedly connected with the outer walls of the two refrigerant guide pipes (201).

7. The rapid heat exchange device for solid-state hydrogen storage material according to claim 6, wherein An elastic sealing ring is arranged in the clamping groove (102).

8. The rapid heat exchange device for solid-state hydrogen storage material of claim 7, wherein, An elastic buffer block (207) is arranged on the inner bottom wall of the heat exchange shell (200).

9. The rapid heat exchange device for solid-state hydrogen storage material of claim 8, wherein, The side wall of the battery body (100) is made of high-thermal-conductivity material.

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