Busbar protection cover and hydrogen production equipment

Abstract

The utility model discloses a busbar protective cover and a hydrogen production device, the busbar protective cover is connected with an electrolytic bath, the busbar protective cover is hollow to form a protective cavity, the joint of the electrolytic bath and a wiring busbar is arranged in the protective cavity, the side wall surface of the busbar protective cover is provided with heat dissipation holes, the heat dissipation holes are communicated with the protective cavity, and the protective cavity is communicated with the busbar protective cover. The heat dissipation holes are provided with insulating nets. The hydrogen production equipment comprises an electrolytic bath and the busbar protection cover. The utility model can solve the technical problem that the electric arc between the conventional electrolytic bath and the busbar easily causes spark explosion due to insufficient heat dissipation at the wiring part of the electrolytic bath and the busbar.

Description

TECHNICAL FIELD

[0001] The utility model belongs to hydrogen production technical field, especially relate to a busbar protection cover and a hydrogen production equipment. BACKGROUND

[0002] In the existing PEM electrolytic cell, after the cable is connected with the busbar, the cable and the busbar are wrapped with heat shrink tape, and the connection between the cable and the busbar is prone to insufficient heat dissipation, and the busbar is exposed in the explosion-proof area, and the cable and the busbar are prone to electric arc, which is prone to cause spark explosion. SUMMARY

[0003] The utility model aims at providing a busbar protection cover and a hydrogen production equipment to solve the technical problems of insufficient heat dissipation at the connection between the electrolytic cell and the busbar and the electric arc between the two, which is prone to cause spark explosion.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme:

[0005] The utility model discloses a busbar protection cover is connected in electrolytic cell, the hollow of busbar protection cover forms protection cavity, and the connection between electrolytic cell and busbar is located in protection cavity, the lateral wall surface of busbar protection cover is equipped with heat dissipation hole, the heat dissipation hole with protection cavity is open, and the heat dissipation hole is equipped with insulating net.

[0006] The utility model at least has the beneficial effects of the following: the busbar protection cover forms a protection cavity, and the connection between the electrolytic cell and the busbar is located in the protection cavity, avoiding the direct exposure of the connection between the busbar and the electrolytic cell in the explosion-proof area.

[0007] The lateral wall surface of the busbar protection cover is provided with a heat dissipation hole for heat dissipation of the busbar and the electrolytic cell in the protection cavity. When the busbar and the electrolytic cell are electrified in the protection cavity, heat will be generated, the air in the protection cavity exchanges with the heating part, and the air in the protection cavity forms natural convection. As the temperature in the protection cavity rises, the air pressure increases, so that the protection cavity can realize positive pressure ventilation through the heat dissipation hole, the air inside and outside the protection cavity can exchange heat, and the heat dissipation efficiency of the busbar protection cover is improved.

[0008] The heat dissipation hole is provided with an insulating net to prevent the electric arc generated at the connection between the busbar and the electrolytic cell from passing through the heat dissipation hole and causing spark explosion in the explosion-proof area.

[0009] As a further improvement of the above technical scheme, the heat dissipation hole includes an air inlet hole located below and an air outlet hole located above, and the air inlet hole and the air outlet hole are opposite to each other.

[0010] As a further improvement of the above technical scheme, the busbar protection cover is provided with the heat dissipation hole on opposite sides.

[0011] As a further improvement of the above technical solution, when two connection busbars are connected to two electrolytic cells respectively, the busbar protection cover is connected between the two electrolytic cells.

[0012] As a further improvement of the above technical solution, the air inlet holes are arranged in multiple rows in the horizontal direction and the vertical direction, and the air outlet holes are arranged in the same way as the air inlet holes.

[0013] As a further improvement of the above technical solution, the air inlet holes are arranged in eighteen rows, and three rows of air inlet holes are arranged in the horizontal direction, and six air inlet holes are arranged in each row in the vertical direction.

[0014] As a further improvement of the above technical solution, the number and size of the air outlet holes are the same as those of the air inlet holes.

[0015] As a further improvement of the above technical solution, the insulating mesh is provided in multiple rows, and each air inlet hole and each air outlet hole corresponds to one insulating mesh.

[0016] As a further improvement of the above technical solution, the insulating mesh covers all the air inlet holes and / or all the air outlet holes.

[0017] The utility model discloses a kind of hydrogen production equipment, including electrolytic cell and the busbar protection cover as any one described above.

[0018] The utility model at least has the beneficial effect that: avoid the electrolytic cell of hydrogen production equipment in the connection with connection busbar, the problem that arc of connecting portion is exposed in explosion-proof area and causes spark explosion occurs insufficient heat dissipation. BRIEF DESCRIPTION OF DRAWINGS

[0019] The utility model is further described below in conjunction with drawings and examples;

[0020] Figure 1 It is the overall structure schematic view of the hydrogen production equipment provided by the utility model embodiment;

[0021] Figure 2 It is the front view of the hydrogen production equipment provided by the utility model embodiment;

[0022] Figure 3 It is the internal structure schematic view of the heat dissipation hole provided by the utility model embodiment;

[0023] Figure 4 It is the structure schematic view of the busbar protection cover provided by the utility model embodiment.

[0024] Markings in the drawings are as follows:

[0025] 100, busbar protection cover; 110, protection cavity; 120, heat dissipation hole; 121, air inlet hole; 122, air outlet hole;

[0026] 200, electrolytic tank;

[0027] 300, insulating net;

[0028] 400, hydrogen production equipment. DETAILED DESCRIPTION

[0029] This part will describe the specific embodiments of the utility model in detail, the preferred embodiments of the utility model are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0030] In the description of the utility model, it is understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, a particular orientation and operation, therefore, it cannot be understood as the limitation of the utility model.

[0031] In the description of the utility model, if there is a word such as “several” description, its meaning is one or more, the meaning of multiple is two and above, greater than, less than, more than, etc. It is understood as not including the number, above, below, within, etc. It is understood as including the number. If the first, second, third is described, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0032] It should be noted that the X direction in the drawings is from the right side of the busbar protection cover to the left side; The Y direction is from the back side of the busbar protection cover to the front side; The Z direction is from the lower side of the busbar protection cover to the upper side.

[0033] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installing and connecting should be understood broadly, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0034] Reference Figures 1 to 4 , the following will give several embodiments of a busbar protection cover and a hydrogen production equipment of the utility model.

[0035] As Figures 1 to 4As shown, the busbar protection cover 100 is hollowly formed with a protection cavity 110, the electrolytic tank 200 and the wiring busbar are electrically connected through the cable, the electrolytic tank 200 and the busbar protection cover 100 are connected, so that the connection part of the electrolytic tank 200 and the wiring busbar is located in the protection cavity 110, and the connection part of the wiring busbar and the electrolytic tank 200 is prevented from being exposed in the explosion-proof area.

[0036] It can be understood that, when hydrogen is prepared, the wiring busbar and the electrolytic tank 200 are powered to generate heat due to the heat effect of the current.

[0037] In this regard, the sidewall surface of the busbar protection cover 100 is provided with a heat dissipation hole 120, as shown in Figure 4 The heat dissipation hole 120 is communicated between the outer wall surface of the busbar protection cover 100 and the protection cavity 110, the air inside the protection cavity 110 exchanges heat with the heat generating part, the hot air after exchanging heat with the heat generating part is gathered at the upper part of the protection cavity 110, and the cold air in the protection cavity 110 is settled at the lower part of the protection cavity 110, so that the protection cavity 110 forms natural convection.

[0038] In addition, since the air temperature in the protection cavity 110 is increased, the air pressure in the protection cavity 110 is greater than the air pressure outside the busbar protection cover 100, so that the protection cavity 110 can form positive pressure ventilation through the heat dissipation hole 120, the air inside the protection cavity 110 can exchange with the air outside through the heat dissipation hole 120, the external cold air enters the protection cavity 110 through the heat dissipation hole 120, and the hot air in the protection cavity 110 is output to the outside of the protection cavity 110 through the heat dissipation hole 120, so as to accelerate heat dissipation.

[0039] Therefore, the busbar protection cover 100 can continuously dissipate heat for the wiring busbar and the cable through natural convection and positive pressure ventilation, and the heat dissipation efficiency of the busbar protection cover 100 is improved.

[0040] It can be understood that the heat dissipation hole 120 is provided with an insulating net 300, as shown in Figure 3 The electric arc between the cable and the wiring busbar is isolated in the protection cavity 110 by the insulating net 300, so as to prevent the electric arc from appearing outside the busbar protection cover 100 through the heat dissipation hole 120, and prevent the electric arc from causing spark explosion in the explosion-proof area.

[0041] It can be understood that the heat dissipation hole 120 includes an air inlet hole 121 and an air outlet hole 122, as shown in Figure 4 The air inlet hole 121 is located at the lower end of the sidewall surface of the busbar protection cover 100, the air outlet hole 122 is located at the upper end of the sidewall surface of the busbar protection cover 100, and the air inlet hole 121 and the air outlet hole 122 are opposite in the up-down direction, as shown in Figure 1 and Figure 2

[0042] ​In this way, when the electrolytic cell 200 is powered to produce hydrogen, the hot air gathered above the protection cavity 110 corresponds to the air outlet hole 122, and the cold air settled below corresponds to the air inlet hole 121, thereby enhancing the heat dissipation effect of the natural convection of air in the protection cavity 110.

[0043] The air outside the busbar protection cover 100 enters from the air inlet hole 121 below, passes through the connection between the cable and the busbar, and then exits from the air outlet hole 122 above after exchanging heat, thereby improving the heat dissipation effect of the heat generating part.

[0044] It can be understood that one end of the electrolytic cell 200 is electrically connected to the busbar in the left-right direction, i.e., the busbar protection cover 100 is located on the left or right side of the electrolytic cell 200, and the heat dissipation hole 120 can be arranged on the front side wall or the rear side wall of the busbar protection cover 100, so that the connection between the electrolytic cell 200 and the busbar does not interfere with the heat dissipation hole 120.

[0045] In this embodiment, the busbar protection cover 100 is provided with heat dissipation holes 120 on opposite sides, i.e., the front side wall and the rear side wall of the busbar protection cover 100 are respectively provided with heat dissipation holes 120, as shown in Figure 4 This allows the external air to enter from the air inlet holes 121 in front of and behind the busbar protection cover 100, and the hot air in the protection cavity 110 to exit from the air outlet holes 122 on the front and rear sides, thereby further improving the heat dissipation efficiency of the busbar protection cover 100.

[0046] It can be understood that the two heat dissipation holes 120 are symmetrically arranged front and back, i.e., the air inlet hole 121 and the air outlet hole 122 of the front side wall correspond to the air inlet hole 121 and the air outlet hole 122 of the rear side wall, respectively, so that the heat dissipation holes 120 on the front and rear sides can uniformly intake air and uniformly exhaust air.

[0047] In some embodiments, when the busbar is connected to one electrolytic cell 200, the busbar protection cover 100 is arranged at one end of the electrolytic cell 200 connected to the busbar.

[0048] In other embodiments, when two busbars are connected to two electrolytic cells 200, respectively, the busbar protection cover 100 is connected between the two electrolytic cells 200, as shown in Figure 1 and Figure 2 Specifically, the two electrolytic cells 200 are arranged with a left-right spacing, and the two busbars are arranged between the two electrolytic cells 200, wherein the connection cable of one electrolytic cell 200 and the busbar is located above the inside of the protection cavity 110, and the connection cable of the other electrolytic cell 200 and the busbar is located below the inside of the protection cavity 110.

[0049] Therefore, the left end of the busbar protection cover 100 is connected with the electrolytic tank 200 on the left side, and the right end of the busbar protection cover 100 is connected with the electrolytic tank 200 on the right side, so that the cables connected with the two busbars of the two electrolytic tanks 200 are located in the protection cavity 110, thereby saving the number of busbar protection covers 100.

[0050] It can be understood that the busbar protection cover 100 and the electrolytic tank 200 can be connected by a detachable connection mode such as a screw or a bolt.

[0051] In some embodiments, the heat dissipation hole 120 includes an air inlet hole 121 and an air outlet hole 122. By controlling the size of the air inlet hole 121 and the air outlet hole 122, the air inlet area and the air outlet area are adjusted, so as to control the heat dissipation efficiency of the busbar protection cover 100.

[0052] In the embodiment, the heat dissipation hole 120 includes a plurality of air inlet holes 121 and a plurality of air outlet holes 122, as shown in Figure 1 、 Figure 2 and Figure 4 . Specifically, the plurality of air inlet holes 121 are arranged at intervals in the horizontal direction and the vertical direction. Since the plurality of air inlet holes 121 are respectively arranged on the front side wall and the rear side wall of the busbar protection cover 100, the plurality of air inlet holes 121 on one side wall are arranged at intervals in the left-right direction, so that the adjacent four air inlet holes 121 are arranged in a rectangular shape.

[0053] Similarly, the plurality of air outlet holes 122 are also arranged at intervals in the left-right direction and the vertical direction, so that the adjacent four air outlet holes 122 are also arranged in a rectangular shape.

[0054] It can be understood that the more the number of air inlet holes 121 and air outlet holes 122, the higher the heat dissipation efficiency of the protection cavity 110. The busbar protection cover 100 can set the number of air inlet holes 121 and air outlet holes 122 according to the heat dissipation efficiency required by the electrolytic tank 200.

[0055] In the embodiment, eighteen air inlet holes 121 are respectively arranged on the front side wall and the rear side wall. The air inlet holes 121 are arranged at intervals in the left-right direction and are divided into three columns. Each column is arranged at intervals in the vertical direction and includes six air inlet holes 121, as shown in Figure 1 、 Figure 2 and Figure 4 . In the left-right direction, the intervals between the adjacent two air inlet holes 121 are equal. In the vertical direction, the intervals between the adjacent two air inlet holes 121 are equal. Each air inlet hole 121 has the same size.

[0056] Similarly, the number and size of the air outlet holes 122 are the same as those of the air inlet holes 121, and therefore, the front and rear side walls are also provided with eighteen air outlet holes 122, respectively, to ensure that each air outlet hole 122 and each air inlet hole 121 are opposite to each other, so that the air inlet area and the air outlet area of the protection cavity 110 are the same, and uniform natural convection is formed in the protection cavity 110.

[0057] In some embodiments, the insulation net 300 is provided with a plurality of, and each air inlet hole 121 and each air outlet hole 122 corresponds to one insulation net 300. Specifically, the size of the insulation net 300 corresponds to the size of the air inlet hole 121 and the air outlet hole 122, and the insulation net 300 can be connected to the air inlet hole 121 or the air outlet hole 122 by embedding or the like, so that each insulation net 300 completely covers the corresponding air inlet hole 121 or air outlet hole 122, and the electric arc is controlled in the protection cavity 110, as shown in Figure 3

[0058] In other embodiments, the insulation net 300 covers all air inlet holes 121 and / or all air outlet holes 122. Specifically, the size of the insulation net 300 is the same as the rectangular area formed by all air inlet holes 121, and the insulation net 300 is connected to the inner side wall of the busbar protection cover 100, so that a piece of insulation net 300 can completely cover all air inlet holes 121 located on one side wall of the busbar protection cover 100.

[0059] Similarly, a piece of insulation net 300 can completely cover all air outlet holes 122 located on one side wall of the busbar protection cover 100.

[0060] Further, the insulation net 300 corresponding to the plurality of air inlet holes 121 and the insulation net 300 corresponding to the plurality of air outlet holes 122 are the same piece of insulation net 300, and the area of the insulation net 300 is less than or equal to the area of the inner side wall of the protection cavity 110, and only one piece of insulation net 300 needs to be installed to prevent the electric arc from passing through all air inlet holes 121 and all air outlet holes 122 on one side wall.

[0061] It can be understood that since the front and rear side walls of the busbar protection cover 100 are provided with heat dissipation holes 120, the protection cavity 110 is provided with two pieces of insulation net 300, one piece of insulation net 300 is connected to the inner front wall of the protection cavity 110 and corresponds to the heat dissipation hole 120 of the front side wall of the busbar protection cover 100, and the other piece of insulation net 300 is connected to the inner rear wall of the protection cavity 110 and corresponds to the heat dissipation hole 120 of the rear side wall of the busbar protection cover 100.

[0062] In the present embodiment, the busbar protection cover 100 is a square structure, i.e., the protection cavity 110 is a square cavity, as shown in Figure 4 ​Specifically, when the busbar protection cover 100 is connected with one electrolytic cell 200, the busbar protection cover 100 is provided with an opening at one end in the left-right direction. When the busbar protection cover 100 is connected with two electrolytic cells 200, the busbar protection cover 100 is provided with openings at both ends in the left-right direction, so as to be conductive in the left-right direction.

[0063] In some embodiments, the air inlet hole 121 and the air outlet hole 122 both extend in the front-rear direction.

[0064] In other embodiments, the air inlet hole 121 and the air outlet hole 122 both protrude outward and are provided with openings downward, so as to avoid dust in the air from entering the protection cavity 110 through the air inlet hole 121 and the air outlet hole 122.

[0065] The hydrogen production equipment 400 of the embodiment of the utility model comprises electrolytic cells 200 and busbar protection covers 100 connected with each other, as shown in the figure. Figure 1

[0066] The preferred embodiments of the utility model are described in detail above, but the utility model is not limited to the embodiments, and those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the utility model, and these equivalent modifications or replacements are all included in the range defined by the claims of the application.​

Claims

1. A busbar protection cover characterized by, The busbar protection cover is connected to the electrolytic cell, the protection cavity is hollow formed in the busbar protection cover, the connection position of the electrolytic cell and the busbar is arranged in the protection cavity, the sidewall of the busbar protection cover is provided with the heat dissipation hole, the heat dissipation hole and the protection cavity are communicated, and the heat dissipation hole is provided with the insulation net.

2. The busbar cover of claim 1, wherein, The heat dissipation hole comprises the air inlet hole arranged below and the air outlet hole arranged above.

3. The busbar cover of claim 1, wherein, The opposite two sides of the busbar protection cover are respectively provided with the heat dissipation hole.

4. The busbar cover of claim 1, wherein, When two busbars are connected to two electrolytic cells respectively, the busbar protection cover is connected between the two electrolytic cells.

5. The busbar cover of claim 2, wherein, The air inlet hole is provided with a plurality of air inlet holes and is arranged in the horizontal direction and the vertical direction respectively, and the arrangement mode of the air outlet hole is the same as that of the air inlet hole.

6. The busbar cover of claim 5, wherein, The air inlet hole is provided with eighteen air inlet holes, the air inlet holes are arranged in three columns in the horizontal direction, and each column is provided with six air inlet holes in the vertical direction.

7. The busbar cover of claim 6, wherein, The number and size of the air outlet hole are the same as those of the air inlet hole.

8. The busbar cover of claim 2, wherein, The insulation net is provided with a plurality of insulation nets, and each air inlet hole and each air outlet hole is correspondingly provided with an insulation net.

9. The busbar cover of claim 2, wherein, The insulation net covers all the air inlet holes and / or all the air outlet holes.

10. A hydrogen production apparatus, characterized by comprising: The busbar protection cover is connected to the electrolytic cell, the protection cavity is hollow formed in the busbar protection cover, the connection position of the electrolytic cell and the busbar is arranged in the protection cavity, the sidewall of the busbar protection cover is provided with the heat dissipation hole, the heat dissipation hole and the protection cavity are communicated, and the heat dissipation hole is provided with the insulation net.

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