Air-cooled heat exchange device for flow battery

Abstract

The utility model relates to the technical field of air-cooled heat exchange of flow batteries, and discloses an air-cooled heat exchange device of a flow battery, which is characterized by comprising a ventilation fence, a pipeline structure and a plurality of heat exchange structures, the multiple heat exchange structures are all arranged on the ventilation fence and used for conducting heat exchange on the electrolyte, and the pipeline structure is arranged on the heat exchange structures and used for guiding the hot electrolyte to the heat exchange structures and guiding out the cooled electrolyte; the diameter of the input end of the heat exchange structure is gradually reduced in the direction from the input end to the output end; when wind blows through the heat exchange structures, the output pressure of the output ends of the heat exchange structures is reduced, the heat exchange structures are arranged on the ventilation fence for heat exchange, and the special arrangement that the diameters of the input ends of the heat exchange structures are gradually reduced in the direction from the output ends is matched, so that the throttling effect is generated when the wind blows through the heat exchange structures; the output pressure of the output end of the heat exchange structure is reduced, a large amount of heat is taken away, the electrolyte is guided to the heat exchange structure in cooperation with the pipeline structure, and therefore heat exchange is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of air-cooling heat exchange of liquid flow batteries, and more specifically to an air-cooling heat exchange device for liquid flow batteries. Background Art

[0002] Liquid flow battery is a new type of storage battery. Liquid flow battery consists of a stack unit, electrolyte, electrolyte storage and supply unit, and management control unit. It is a high-performance storage battery that separates the positive and negative electrolytes and circulates them separately. It has the characteristics of high capacity, wide application field (environment), and long cycle life. It is a new energy product, but there is an overheating problem, specifically the electrolyte overheating, which needs to be controlled. Most of the control methods in the existing technology are air cooling, but it is not convenient for rapid heat dissipation. The equipment for rapid heat dissipation is too complicated and difficult to maintain. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a liquid flow battery air-cooled heat exchange device for overcoming the above-mentioned defects in the prior art. Heat exchange is performed by arranging a plurality of heat exchange structures on the ventilation grille, wherein a special arrangement is adopted in which the diameter of the input end of the heat exchange structure gradually decreases toward the output end, so that a throttling effect occurs when wind blows through the plurality of heat exchange structures, and the output pressure at the output end of the heat exchange structure is reduced, thereby taking away a large amount of heat. The electrolyte is guided to the heat exchange structure in cooperation with the pipeline structure, thereby completing the heat exchange.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a liquid flow battery air-cooled heat exchange device, comprising a ventilation grille, a pipeline structure and a plurality of heat exchange structures; the plurality of heat exchange structures are all arranged on the ventilation grille for exchanging electrolyte heat, and the pipeline structure is arranged on the heat exchange structure for guiding the hot electrolyte to the heat exchange structure and conducting the cooled electrolyte out; the diameter of the input end of the heat exchange structure gradually decreases toward the output end; when wind blows through the plurality of heat exchange structures, the output pressure of the output end of the heat exchange structure decreases, and heat exchange is performed by arranging a plurality of heat exchange structures on the ventilation grille, wherein the diameter of the input end of the heat exchange structure gradually decreases toward the output end, which is a special arrangement, so that when wind blows through the plurality of heat exchange structures, a throttling effect occurs, and the output pressure of the output end of the heat exchange structure decreases, thereby taking away a large amount of heat, and the electrolyte is guided to the heat exchange structure in cooperation with the pipeline structure, thereby completing the heat exchange.

[0005] As a further improvement of the present invention, the heat exchange structure includes an expansion portion, a fin tube, a straight tube portion and an annular groove; the straight tube portion is fixedly connected to the ventilation grille, the fin tube is fixedly connected to one end of the straight tube portion, the expansion portion is fixedly connected to the other end of the straight tube portion, and the annular groove is opened in the fin tube. By adding annular grooves in the fin tubes to facilitate the flow of electrolyte, and cooperating with the throttling effect to achieve wind pressure reduction, a large amount of heat is taken away during the flow of electrolyte, thereby completing heat exchange.

[0006] As a further improvement of the utility model, the pipeline structure includes a plurality of branch pipelines and two main pipelines; the plurality of branch pipelines are connected to a plurality of finned tubes and communicated with the annular groove, and the two main pipelines are respectively located at both ends of the branch pipelines and communicated with one end of all the branch pipelines. By diverting the electrolyte to a plurality of heat exchange structures, heat exchange is rapid and efficiency is improved.

[0007] As a further improvement of the utility model, the ventilation grille is provided with a plurality of connection ports; the plurality of connection ports are respectively connected with a plurality of straight pipe portions.

[0008] As a further improvement of the present invention, the shape of the tube opening of the fin tube matches that of the tube opening of the straight tube portion, and the shape of the annular groove matches that of the fin tube.

[0009] Beneficial effects of the utility model:

[0010] (1) The utility model performs heat exchange by arranging a plurality of heat exchange structures on the ventilation grille, wherein the diameter of the input end of the heat exchange structure gradually decreases toward the output end, which is a special arrangement. When wind blows through the plurality of heat exchange structures, a throttling effect occurs, and the output pressure at the output end of the heat exchange structure decreases, thereby taking away a large amount of heat. The electrolyte is guided to the heat exchange structure in cooperation with the pipeline structure, thereby completing the heat exchange.

[0011] (2) The utility model adds annular grooves in the fin tubes to facilitate the flow of electrolyte, and cooperates with the throttling effect to achieve wind pressure reduction, thereby taking away a large amount of heat during the flow of electrolyte, thereby achieving heat exchange.

[0012] (3) The utility model divides the electrolyte into several heat exchange structures to rapidly exchange heat and improve efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a main structural schematic diagram of the utility model;

[0014] Figure 2 It is a main structural schematic diagram of the utility model;

[0015] Figure 3 This utility model Figure 2 Structural schematic diagram of the middle heat exchange structure;

[0016] Figure 4 This utility model Figure 3 A schematic diagram of the structure at the middle expansion portion;

[0017] Figure 5 It is a structural schematic diagram of a fin tube in a specific embodiment 1 of the utility model;

[0018] Figure 6 It is a structural schematic diagram of the fin tube in the second specific embodiment of the utility model;

[0019] Figure 7 It is a structural schematic diagram of the finned tube in the third specific embodiment of the utility model.

[0020] Figure numerals: 1, ventilation grille; 11, connection port; 2, pipeline structure; 21, branch pipeline; 22, main pipeline; 3, heat exchange structure; 31, expansion part; 32, fin tube; 33, straight pipe part; 34, annular groove. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. The same parts are represented by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "bottom surface" and "top surface", "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0022] Specific embodiment 1: refer to Figure 1-7 As shown, a liquid flow battery air-cooled heat exchange device of the present embodiment includes a ventilation grille 1, a pipeline structure 2 and a plurality of heat exchange structures 3; the plurality of heat exchange structures 3 are all arranged on the ventilation grille 1 for exchanging electrolyte heat, and the pipeline structure 2 is arranged on the heat exchange structure 3 for guiding the hot electrolyte to the heat exchange structure 3 and conducting the cooled electrolyte; the diameter of the input end of the heat exchange structure 3 gradually decreases toward the output end; when wind blows through the plurality of heat exchange structures 3, the output pressure of the output end of the heat exchange structure 3 decreases, and heat exchange is performed by arranging a plurality of heat exchange structures 3 on the ventilation grille 1, wherein the diameter of the input end of the heat exchange structure 3 gradually decreases toward the output end, which is a special arrangement, so that when wind blows through the plurality of heat exchange structures 3, a throttling effect occurs, and the output pressure of the output end of the heat exchange structure 3 decreases, thereby taking away a large amount of heat, and the electrolyte is guided to the heat exchange structure 3 in cooperation with the pipeline structure 2, thereby completing the heat exchange.

[0023] Reference Figure 1-7As shown, the heat exchange structure 3 includes an expansion portion 31, a fin tube 32, a straight tube portion 33 and an annular groove 34; the straight tube portion 33 is fixedly connected to the ventilation grille 1, the fin tube 32 is fixedly connected to one end of the straight tube portion 33, the expansion portion 31 is fixedly connected to the other end of the straight tube portion 33, and the annular groove 34 is provided in the fin tube 32. The annular groove 34 is added in the fin tube 32 to facilitate the flow of electrolyte, and the throttling effect is used to achieve the pressure reduction of the wind, so that a large amount of heat is taken away during the flow of the electrolyte, thereby completing the heat exchange.

[0024] Reference Figure 1-7 As shown, the pipeline structure 2 includes a plurality of branch pipelines 21 and two main pipelines 22; the plurality of branch pipelines 21 are connected to a plurality of fin tubes 32 and communicated with the annular groove 34, and the two main pipelines 22 are respectively located at the two ends of the branch pipelines 21 and communicated with one end of all the branch pipelines 21. By diverting the electrolyte to a plurality of heat exchange structures 3, heat exchange is rapid and efficiency is improved.

[0025] Reference Figure 1-7 As shown, the ventilation grille 1 is provided with a plurality of connection ports 11 ; the plurality of connection ports 11 are respectively connected to a plurality of straight pipe portions 33 .

[0026] Reference Figure 1-7 As shown, the shape of the tube opening of the fin tube 32 matches that of the tube opening of the straight tube portion 33 , and the shape of the annular groove 34 matches that of the fin tube 32 .

[0027] Working principle: Refer to Figure 1-5 As shown, when in use, the electrolyte flows through the main pipeline 22, then flows toward the plurality of branch pipelines 21, flows into all the annular grooves 34, and then the wind flows toward the expansion portion 31 and flows toward the straight pipe portion 33 to reduce the pressure, and takes away the heat of the electrolyte when flowing toward the finned tube 32, completing the heat exchange.

[0028] Specific embodiment 2: refer to Figure 1-7 As shown, the present embodiment is different from the specific embodiment 1 in that: the diameter of the expansion portion 31 is larger than the diameter of the straight tube portion 33, the diameter of the straight tube portion 33 is smaller than the diameter of the fin tube 32, and the diameter of the fin tube 32 is smaller than the diameter of the expansion portion 31;

[0029] When using, Figure 6 As shown, the wind passes through the expansion portion 31 and flows to the straight tube portion 33 to reduce pressure, and then flows to the fin tube 32 to increase pressure, thereby completing heat exchange with the electrolyte.

[0030] Specific embodiment three: refer to Figure 1-7 As shown, this embodiment is different from the other two specific embodiments in that: the diameter of the expansion portion 31 is larger than the diameter of the straight tube portion 33, and the diameter of the straight tube portion 33 is larger than the diameter of the fin tube 32;

[0031] When using, Figure 7As shown, the wind passes through the expansion portion 31 and flows to the straight tube portion 33 where the pressure is reduced, and then flows to the fin tube 32 where the pressure is reduced again, thereby completing the heat exchange with the electrolyte.

[0032] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims

1. A liquid flow battery air-cooled heat exchange device, characterized in that: It comprises a ventilation grille (1), a pipeline structure (2) and a plurality of heat exchange structures (3); The plurality of heat exchange structures (3) are all arranged on the ventilation grille (1) and are used to exchange heat of the electrolyte; the pipeline structure (2) is arranged on the heat exchange structure (3) and is used to guide the hot electrolyte to the heat exchange structure (3) and to guide the cooled electrolyte out; The diameter of the input end of the heat exchange structure (3) gradually decreases towards the output end; When wind blows through a plurality of heat exchange structures (3), the output pressure at the output end of the heat exchange structure (3) decreases.

2. The air-cooled heat exchange device for a liquid flow battery according to claim 1, characterized in that: The heat exchange structure (3) comprises an expansion portion (31), a fin tube (32), a straight tube portion (33) and an annular groove (34); The straight tube portion (33) is fixedly connected to the ventilation grille (1), the fin tube (32) is fixedly connected to one end of the straight tube portion (33), the expansion portion (31) is fixedly connected to the other end of the straight tube portion (33), and the annular groove (34) is provided in the fin tube (32).

3. The air-cooled heat exchange device for a liquid flow battery according to claim 2, characterized in that: The pipeline structure (2) comprises a plurality of branch pipelines (21) and two main pipelines (22); The plurality of branch pipelines (21) are connected to the plurality of fin tubes (32) and communicate with the annular groove (34); the two main pipelines (22) are respectively located at the two ends of the branch pipelines (21) and communicate with one end of all the branch pipelines (21).

4. The air-cooled heat exchange device for a liquid flow battery according to claim 2, characterized in that: The ventilation grille (1) is provided with a plurality of connection ports (11); the plurality of connection ports (11) are respectively connected to a plurality of straight pipe portions (33).

5. The air-cooled heat exchange device for a liquid flow battery according to claim 2, characterized in that: The shape of the tube opening of the fin tube (32) matches that of the tube opening of the straight tube portion (33).

6. The air-cooled heat exchange device for a liquid flow battery according to claim 2, characterized in that: The shape of the annular groove (34) matches that of the fin tube (32).

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