Cooling device for hydrogen storage device and hydrogen storage device

Abstract

The utility model provides a cooling device for a hydrogen storage device and the hydrogen storage device, and relates to the technical field of hydrogen storage, the cooling device for the hydrogen storage device comprises a main flow pipeline and branch flow pipelines, the main flow pipeline is used for being arranged at the upper part of a box body of the hydrogen storage device, and an outlet of the main flow pipeline is respectively communicated with inlets of a plurality of branch flow pipelines; the multiple flow dividing pipelines extend in the vertical direction, a plurality of nozzles are evenly distributed on the flow dividing pipelines in the length direction of the flow dividing pipelines, and the nozzles are used for being arranged in the direction facing the hydrogen storage tank. According to the hydrogen storage tank cooling device, the main flow pipeline is arranged, the branch flow pipelines are connected to the outlet of the main flow pipeline, and the nozzles are evenly distributed on the branch flow pipelines in the Z-axis direction, so that cooling liquid flowing into the branch flow pipelines can be sprayed to the hydrogen storage tank from the nozzles, covers all positions of the hydrogen storage tank in the vertical direction and cools the hydrogen storage tank; the coverage rate and the coverage amount of cooling liquid on the hydrogen storage tank are increased, the hydrogen storage efficiency is improved, and the hydrogen storage amount is prevented from being affected by too high temperature of the hydrogen storage tank.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen storage, and in particular, to a cooling device for a hydrogen storage device and a hydrogen storage device. Background Art

[0002] As the most promising secondary energy source in this century, hydrogen energy has the advantages of wide sources, environmental friendliness, and renewability, and its development and utilization have attracted much attention. Hydrogen storage containers have now been widely used in hydrogen refueling stations, new energy vehicles, and the aerospace field. Existing hydrogen storage technologies often use hydrogen storage devices to store hydrogen. Multiple hydrogen storage tanks are arranged in the box body of the hydrogen storage device, and hydrogen is filled into the hydrogen storage tanks for storage. However, during the process of adding hydrogen to the hydrogen storage tanks, the phenomenon of hydrogen temperature rise is likely to occur, resulting in too high a temperature inside the hydrogen storage tanks, increasing the pressure inside the hydrogen storage containers, affecting the hydrogen addition efficiency, and at the same time, also affecting the actual amount of hydrogen added inside the hydrogen storage containers. Summary of the Utility Model

[0003] The problem to be solved by the utility model is how to improve the hydrogen storage efficiency.

[0004] To this end, the utility model provides a cooling device for a hydrogen storage device, including a main flow pipeline and a shunt pipeline. The main flow pipeline and the shunt pipeline are used for circulating a liquid medium. The main flow pipeline is used to be arranged at the upper part of the box body of the hydrogen storage device. The outlet of the main flow pipeline is respectively communicated with the inlets of a plurality of shunt pipelines. The plurality of shunt pipelines are used to be arranged on the periphery of the hydrogen storage tank and extend along the vertical direction. A plurality of nozzles are uniformly arranged on the shunt pipeline along its length direction, and the nozzles are used to be arranged facing the hydrogen storage tank.

[0005] Optionally, a plurality of the shunt pipelines are used to be oppositely arranged on both sides in the length direction of the hydrogen storage tank.

[0006] Optionally, there are four shunt pipelines, and the four shunt pipelines are respectively used to be arranged at the four corners of the box body.

[0007] Optionally, a control valve is arranged at the nozzle, and the control valve is used to adjust the flow rate of the nozzle.

[0008] Optionally, a temperature sensor is arranged at the nozzle, and the temperature sensor is used to detect the temperature of the liquid medium sprayed out by the nozzle.

[0009] Optionally, the number of nozzles on any one of the shunt pipelines is used to correspond one-to-one with the number of layers of the hydrogen storage tank.

[0010] Optionally, the nozzle includes two spray heads, and the two spray heads are respectively arranged to deviate towards both ends in the length direction of the shunt pipeline.

[0011] Optionally, a connecting plate is provided on the diversion pipe, and the connecting plate is used to be connected to the inner surface of the box body.

[0012] Optionally, the connecting plate is a U-shaped structure, the diversion pipe passes through the U-shaped structure and abuts against the inner surface of the U-shaped structure, and both ends of the U-shaped structure are used to connect to the inner surface of the box body.

[0013] Compared with the prior art, the cooling device for hydrogen storage device of the utility model has the following beneficial effects:

[0014] The utility model sets a mainstream pipe on the top of the box body, and connects multiple branch pipes at the outlet of the mainstream pipe. Liquid medium, that is, coolant can flow into the multiple branch pipes through the mainstream pipe. The multiple branch pipes all extend in the vertical direction, that is, the Z-axis direction. When the coolant flows from the mainstream pipe into the branch pipe, the coolant will accelerate the flow speed under the action of its own gravity. The branch pipe is set on the side of the hydrogen storage tank, and multiple nozzles are evenly distributed on the branch pipe along the Z-axis direction. The nozzles are set toward the direction of the hydrogen storage tank, so that the coolant flowing into the branch pipe can be sprayed toward the hydrogen storage tank from the multiple nozzles, covering various parts of the hydrogen storage tank in the vertical direction. The multiple nozzles on the multiple branch pipes cool the hydrogen storage tank at the same time, thereby improving the coverage rate and coverage amount of the coolant on the hydrogen storage tank, improving the hydrogen storage efficiency, and preventing the hydrogen storage tank from being overheated and affecting the hydrogen storage amount.

[0015] In addition, in order to solve the above problems, the present invention also provides a hydrogen storage device, including a box body, a plurality of hydrogen storage tanks arranged in the box body, and the above-mentioned cooling device for the hydrogen storage device.

[0016] Compared with the prior art, the beneficial effects of the hydrogen storage device described in the present invention are substantially the same as the beneficial effects of the cooling device for the above-mentioned hydrogen storage device, and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is one of the structural schematic diagrams of the cooling device for the hydrogen storage device according to an embodiment of the present utility model;

[0018] Figure 2 This is the second structural schematic diagram of the cooling device for the hydrogen storage device described in an embodiment of the present utility model.

[0019] Description of reference numerals:

[0020] 1-main stream pipeline; 2-diversion pipeline; 3-nozzle; 31-sprinkler; 4-control valve; 5-connecting plate; 6-tank; 7-hydrogen storage tank. DETAILED DESCRIPTION

[0021] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following provides a detailed description of specific embodiments of the present utility model with reference to the accompanying drawings.

[0022] It should be noted that in the description of the present utility model, the orientation or positional relationships indicated by "upper", "lower", "left", "right", "top", "bottom", "front", "rear", "inner", and "outer" are based on the orientation or positional relationships shown in the drawings. This is only for the convenience of describing the present utility model and does not indicate or imply that the device referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present utility model.

[0023] The terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features.

[0024] Moreover, although the present utility model is described with reference to specific embodiments in the present utility model, it should be understood that these embodiments are only examples of the principles and applications of the present utility model. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed, as long as they do not deviate from the spirit and scope of the present utility model defined by the appended claims. It should be understood that different dependent claims and features in the present text can be combined in a manner different from that described in the original claims. It should also be understood that the features described in connection with individual embodiments can be used in other embodiments.

[0025] To solve the above problems, as Figure 1 and Figure 2 shown, the present utility model provides a cooling device for a hydrogen storage device, including a main flow pipeline 1 and a shunt pipeline 2. The main flow pipeline 1 and the shunt pipeline 2 are used for circulating a liquid medium. The main flow pipeline 1 is used to be arranged at the upper part of the box body 6 of the hydrogen storage device. The outlets of the main flow pipeline 1 are respectively communicated with the inlets of a plurality of the shunt pipelines 2. The plurality of shunt pipelines 2 are used to be arranged on the periphery of the hydrogen storage tank 7 and extend along the vertical direction. A plurality of nozzles 3 are evenly arranged on the shunt pipeline 2 along its length direction. The nozzles 3 are used to be arranged facing the hydrogen storage tank 7.

[0026] In this embodiment, a mainstream pipe 1 is provided at the top of the box body 6, and a plurality of branch pipes 2 are connected at the outlet of the mainstream pipe 1. The liquid medium, that is, the coolant, can flow into the plurality of branch pipes 2 through the mainstream pipe 1. The plurality of branch pipes 2 extend in the vertical direction, that is, the Z-axis direction. When the coolant flows from the mainstream pipe 1 into the branch pipe 2, the coolant will accelerate the flow speed under the action of its own gravity. The branch pipe 2 is provided on the side of the hydrogen storage tank 7, and a plurality of nozzles 3 are evenly distributed on the branch pipe 2 along the Z-axis direction. The nozzles 3 are arranged toward the direction of the hydrogen storage tank 7, so that the coolant flowing into the branch pipe 2 can be sprayed toward the hydrogen storage tank 7 from the plurality of nozzles 3, covering all parts of the hydrogen storage tank 7 in the vertical direction. The plurality of nozzles 3 on the plurality of branch pipes 2 cool the hydrogen storage tank 7 at the same time, thereby improving the coverage rate and coverage amount of the coolant on the hydrogen storage tank 7, improving the hydrogen storage efficiency, and preventing the hydrogen storage tank 7 from being too hot and affecting the hydrogen storage amount.

[0027] Specifically, an opening is provided on the box body 6 for the main pipeline 1 to pass through, so that the liquid medium can flow into the box body 6. The end of the branch pipeline 2 away from the main pipeline 1 is closed to improve the utilization rate of the liquid medium. A drain valve is provided at the bottom of the box body 6 to facilitate the discharge of the liquid medium in the box body 6. The liquid medium can be cooling water or hot water. When hydrogen needs to be released, hot water is introduced into the main pipeline 1 and the branch pipeline 2 to increase the temperature, so as to facilitate the gasification and discharge of liquid hydrogen in the hydrogen storage tank 7.

[0028] Alternatively, as Figure 1 and Figure 2 As shown, the plurality of diversion pipes 2 are arranged relatively on both sides of the length direction of the hydrogen storage tank 7 .

[0029] In this embodiment, by symmetrically arranging multiple branch pipes 2 on both sides of the hydrogen storage tank 7 along the X-axis direction, the nozzles 3 on the branch pipes 2 can spray liquid medium to the hydrogen storage tank 7 from both sides of the X-axis direction, thereby increasing the speed at which the liquid medium covers the hydrogen storage tank 7, improving the cooling efficiency of the hydrogen storage tank 7, and improving the hydrogen storage efficiency.

[0030] Alternatively, as Figure 1 and Figure 2 As shown, there are four diversion pipes 2 , and the four diversion pipes 2 are respectively arranged at the four corners of the box body 6 .

[0031] In this embodiment, by setting four diversion pipes 2, the four diversion pipes 2 are respectively set at the four corners of the box 6, so that the liquid medium can be sprayed toward the hydrogen storage tank 7 from four directions, thereby increasing the speed at which the liquid medium covers the hydrogen storage tank 7, improving the cooling efficiency of the hydrogen storage tank 7, and improving the hydrogen storage efficiency.

[0032] Alternatively, as Figure 1 As shown, a control valve 4 is provided at the nozzle 3 , and the control valve 4 is used to adjust the flow of the nozzle 3 .

[0033] In this embodiment, by providing a control valve 4 at the nozzle 3, the control valve 4 can control the opening and closing of the nozzle 3 and adjust the flow rate of the liquid medium sprayed from the nozzle 3 to the hydrogen storage tank 7. It can control the opening of the nozzle 3 when the liquid medium is needed and adjust the cooling rate of the hydrogen storage tank 7.

[0034] Optionally, a temperature sensor is provided at the nozzle 3, and the temperature sensor is used to detect the temperature of the liquid medium ejected from the nozzle 3.

[0035] In this embodiment, by providing a temperature sensor at the nozzle 3, the temperature sensor can detect the temperature of the liquid medium ejected from the nozzle 3 and adjust the temperature of the liquid medium ejected from the nozzle 3 as needed.

[0036] Optionally, as Figure 1 shown, the number of nozzles 3 on any one of the shunt pipes 2 is used to correspond one-to-one with the number of layers of the hydrogen storage tank 7.

[0037] In this embodiment, by making the number of nozzles 3 on any one of the shunt pipes 2 consistent with the number of layers of the hydrogen storage tank 7 in the vertical direction, each nozzle 3 corresponds to one layer of the hydrogen storage tank 7, so that each layer of the hydrogen storage tank 7 has a corresponding nozzle 3 aligned for cooling, improving the cooling efficiency of the hydrogen storage tank 7.

[0038] Optionally, as Figure 1 shown, the nozzle 3 includes two spray heads 31, and the two spray heads 31 are respectively arranged to deviate towards both ends of the length direction of the shunt pipe 2.

[0039] In this embodiment, by providing two spray heads 31 on the nozzle 3, both spray heads 31 extend in the positive direction of the X axis and are respectively inclined in the positive and negative directions of the Y axis, so that the liquid medium ejected from one nozzle 3 is ejected in two directions, covering different areas on the hydrogen storage tank 7, improving the coverage rate and coverage amount of the liquid medium on the hydrogen storage tank 7, and improving the hydrogen storage efficiency.

[0040] Optionally, as Figure 1 shown, a connecting plate 5 is provided on the shunt pipe 2, and the connecting plate 5 is used to connect to the inner surface of the box body 6.

[0041] In this embodiment, by providing a connecting plate 5 on the shunt pipe 2, the connecting plate 5 connects the inner surface of the box body 6 and the shunt pipe 2 together, fixing the cooling device on the box body 6 and improving the stability of the connection relationship between the cooling device and the box body 6.

[0042] Specifically, a plurality of connecting plates 5 are connected to each shunt pipe 2, improving the stability of the connection relationship between the cooling device and the box body 6.

[0043] Optionally, asFigure 1 As shown, the connecting plate 5 has a U-shaped structure. The shunt pipe 2 passes through the U-shaped structure and abuts against the inner surface of the U-shaped structure. Both ends of the U-shaped structure are used to be connected to the inner surface of the box body 6.

[0044] In this embodiment, by setting the connecting plate 5 to have a U-shaped structure, both ends of the U-shaped structure are connected to the inner surface of the box body 6, and the shunt pipe 2 is disposed inside the groove of the U-shaped structure and abuts against the inner surface of the U. The shunt pipes 2 facing the positive and negative directions of the X-axis are used in cooperation with the connecting plates 5 of the U-shaped structure facing the positive and negative directions of the X-axis to limit the shunt pipes 2 in the X-axis and Y-axis directions, improving the stability of the connection relationship between the cooling device and the box body 6.

[0045] A hydrogen storage device according to another embodiment of the present invention includes a box body 6, a plurality of hydrogen storage tanks 7 disposed inside the box body 6, and the above-mentioned cooling device for the hydrogen storage device.

[0046] Optionally, the plurality of hydrogen storage tanks 7 are all horizontally arranged in parallel and are arranged in an array inside the box body 6.

[0047] Compared with the prior art, the beneficial effects of the hydrogen storage device in this embodiment are substantially the same as those of the above-mentioned cooling device for the hydrogen storage device, and will not be elaborated here.

[0048] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will all fall within the protection scope of the present invention.

Claims

1. A cooling device for a hydrogen storage device, characterized in that, It includes a main pipeline (1) and a shunt pipeline (2). The main pipeline (1) and the shunt pipeline (2) are used for circulating a liquid medium. The main pipeline (1) is used to be arranged at the upper part of the box body (6) of the hydrogen storage device. The outlet of the main pipeline (1) is respectively communicated with the inlets of a plurality of the shunt pipelines (2). The plurality of shunt pipelines (2) are used to be arranged on the periphery of the hydrogen storage tank (7) and extend along the vertical direction. A plurality of nozzles (3) are evenly distributed on the shunt pipeline (2) along its length direction. The nozzles (3) are used to be arranged towards the direction of the hydrogen storage tank (7).

2. The cooling device for a hydrogen storage device according to claim 1, characterized in that The plurality of shunt pipelines (2) are used to be oppositely arranged on both sides in the length direction of the hydrogen storage tank (7).

3. The cooling device for a hydrogen storage device according to claim 1, characterized in that, There are four shunt pipelines (2), and the four shunt pipelines (2) are respectively used to be arranged at the four corners of the box body (6).

4. The cooling device for a hydrogen storage device according to claim 1, characterized in that, A control valve (4) is arranged at the nozzle (3), and the control valve (4) is used to adjust the flow rate of the nozzle (3).

5. The cooling device for a hydrogen storage device according to claim 1, wherein, A temperature sensor is arranged at the nozzle (3), and the temperature sensor is used to detect the temperature of the liquid medium ejected from the nozzle (3).

6. The cooling device for a hydrogen storage device according to claim 1, characterized in that, The number of the nozzles (3) on any one of the shunt pipelines (2) is used to correspond one-to-one with the number of layers of the hydrogen storage tank (7).

7. The cooling device for a hydrogen storage device according to claim 1, wherein, The nozzle (3) includes two spray heads (31), and the two spray heads (31) are respectively biased towards both ends in the length direction of the shunt pipeline (2).

8. The cooling device for a hydrogen storage device according to claim 1, characterized in that, A connecting plate (5) is arranged on the shunt pipeline (2), and the connecting plate (5) is used to be connected to the inner surface of the box body (6).

9. The cooling device for a hydrogen storage device according to claim 8, characterized in that, The connecting plate (5) is of a U-shaped structure. The shunt pipeline (2) passes through the U-shaped structure and abuts against the inner surface of the U-shaped structure. Both ends of the U-shaped structure are used to be connected to the inner surface of the box body (6).

10. A hydrogen storage device, characterized in that, It includes a box body (6), a plurality of hydrogen storage tanks (7) arranged in the box body (6), and a cooling device for a hydrogen storage device according to any one of claims 1 to 9.

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