An explosion-proof control box

Abstract

The utility model discloses a kind of explosion-proof control cabinet, the explosion-proof control cabinet includes cabinet, cooling device, the cabinet is equipped with control cabinet body, the both sides and back of the control cabinet body are equipped with several equal-interval heat dissipation fins, the upper inside of the cabinet is equipped with sprinkler, the cabinet is equipped with first output end, the cooling device includes first circulating pump, second circulating pump, water tank, heat exchange device, the output of the first circulating pump is connected with the input of heat exchange device, the output of heat exchange device is connected with the input of water tank.Second circulating pump sends cooling water in water tank to sprinkler, and heat exchange cooling with control cabinet, heat dissipation fin improves heat exchange efficiency, after heat exchange with cold air, it is sent to heat exchange device by first circulating pump again and becomes cooling water backflow to water tank, form circulation, this design provides suitable temperature for explosion-proof electric appliance, improves stability, reliability, prolongs life, reduces failure rate, with the advantages of efficient heat dissipation, prolonging life.

Description

Technical Field

[0001] This utility model relates to the field of explosion-proof control box technology, and in particular to an explosion-proof control box. Background Technology

[0002] Explosion-proof electrical appliances refer to a class of electrical equipment used in places where there are explosive gases and vapors. Explosion-proof electrical appliances are mainly divided into explosion-proof lighting fixtures, explosion-proof electrical appliances, explosion-proof pipe fittings, explosion-proof and corrosion-resistant electrical appliances, dust explosion-proof electrical appliances, and stainless steel explosion-proof electrical appliances.

[0003] Explosion-proof control boxes mainly include lighting distribution boxes for controlling lighting systems and power boxes for controlling power systems. To protect explosion-proof electrical appliances, these appliances are typically housed inside the explosion-proof control box. However, these appliances generate significant heat during operation. Existing explosion-proof control boxes generally rely on external ribs for heat exchange, which is inefficient. This method causes heat to accumulate inside the control box, potentially baking the electrical appliances and reducing their lifespan, triggering over-temperature protection, or causing frequent malfunctions. Therefore, the applicant has developed a beneficial design to address these issues, and the technical solution described below arose from this context. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the traditional explosion-proof control box design and to provide a product that improves heat dissipation efficiency and extends service life.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] An explosion-proof control box includes a cabinet and a cooling device. The cabinet contains a control box body, and the control box body has several equally spaced heat dissipation fins on its sides and back. A water spraying device is provided on the upper inner part of the cabinet. The cabinet has a first output end. The cooling device includes a first circulating pump, a second circulating pump, a water tank, and a heat exchange device. The output port of the first circulating pump is connected to the input port of the heat exchange device, and the output port of the heat exchange device is connected to the input port of the water tank. The input port of the first circulating pump is connected to the first output end. The output port of the second circulating pump is connected to the water spraying device, and the input port of the second circulating pump is connected to the output port of the water tank.

[0007] Preferably, the cabinet has a chamber for accommodating the control box body, the chamber has a connecting part, the bottom of the chamber has inclined surfaces on both sides, and the first output end is disposed between the two inclined surfaces.

[0008] Preferably, the control box body is provided with a flange and connected to the connecting part, and the bottom and one side of the control box body are provided with a number of explosion-proof sealing joints.

[0009] Preferably, several explosion-proof sealing joints with equal spacing are evenly distributed on both sides of the first output end with the dot as the axis, and the explosion-proof sealing joints are also provided on one side of the cabinet.

[0010] Preferably, the sprinkler system includes a main pipe and branch pipes on both sides of the main pipe. The main pipe is connected to the output port of the second circulating pump, and the branch pipes are provided with a number of equally spaced through holes and are located above the control box body.

[0011] Preferably, the water tank is provided with a second output end, which is connected to the input port of the second circulation pump.

[0012] Preferably, the water tank is provided with a cover on top, one end of the cover is provided with a ventilation hole, the other end of the cover is provided with a heat dissipation hole, and a filter screen is provided at the air outlet of the ventilation hole.

[0013] Preferably, the heat exchange device includes a heat exchange tube and a cooling fan. The heat exchange tube has an input end and a third output end. The input end is connected to the output port of the first circulating pump, and the third output end is connected to the input port of the water tank. The outer wall of the heat exchange tube is provided with a plurality of equally spaced heat dissipation rings.

[0014] Preferably, the heat exchange tube is located at the air outlet of the filter screen, and the cooling fan is installed and fixed at the ventilation hole, and is located directly in front of the heat exchange tube.

[0015] Beneficial effects:

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This invention utilizes a second circulating pump to continuously draw cooling water from the water tank into a spray device. The cooling water exchanges heat with the control box body, thereby reducing the surface and internal temperature of the control box body. The heat dissipation fins increase the heat exchange area between the cooling water and the control box body, further improving heat exchange efficiency. After exchanging heat, the cooling water becomes water with added heat and collects at the first output end. Subsequently, the first circulating pump transports this water with added heat to the heat exchange device, where it exchanges heat with cold air, gradually converting the water with added heat back into cooling water, and finally flowing back into the water tank, forming a complete circulation system. This design provides a suitable ambient temperature for explosion-proof electrical appliances, effectively improving their operational stability and reliability, extending their service life, and reducing the frequency of failures. This design overcomes the problems existing in the prior art and has the advantages of improving heat dissipation efficiency and extending service life. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of an explosion-proof control box according to the present invention;

[0019] Figure 2 This is a schematic diagram of the back structure of an explosion-proof control box according to the present invention;

[0020] Figure 3 This is a side cross-sectional view of an explosion-proof control box according to the present invention.

[0021] Figure 4 This is a schematic diagram of the internal structure of the casing of an explosion-proof control box according to the present invention;

[0022] The correspondence between the labels and component names in the attached figures is as follows:

[0023] Attached reference numerals: 1. Cabinet; 2. Control box body; 3. Cooling device; 4. Sprinkler device; 5. First circulation pump; 6. Second circulation pump; 7. Water tank; 8. Heat exchange device; 9. Explosion-proof sealing joint;

[0024] 11. First output terminal; 12. Chamber; 13. Connecting part; 14. Inclined surface;

[0025] 21. Heat dissipation fins; 22. Flange;

[0026] 41. Main pipe; 42. Branch pipe; 43. Through hole;

[0027] 71. Second output terminal; 72. Cover; 73. Ventilation hole; 74. Heat dissipation hole; 75. Filter screen;

[0028] 81. Heat exchanger tubes; 82. Cooling fan;

[0029] 811, Input terminal; 812, Third output terminal; 813, Heat sink ring. Detailed Implementation

[0030] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0031] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] In this embodiment of the utility model, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0033] Reference example Figures 1 to 4 An explosion-proof control box includes a cabinet 1 and a cooling device 3. The cabinet 1 contains a control box body 2. The control box body 2 has several equally spaced heat dissipation fins 21 on both sides and the back. The cabinet 1 has a water spraying device 4 on the upper inside. The cabinet 1 has a first output end 11. The cooling device 3 includes a first circulation pump 5, a second circulation pump 6, a water tank 7, and a heat exchange device 8. The output port of the first circulation pump 5 is connected to the input port of the heat exchange device 8, and the output port of the heat exchange device 8 is connected to the input port of the water tank 7. The input port of the first circulation pump 5 is connected to the first output end 11. The output port of the second circulation pump 6 is connected to the water spraying device 4, and the input port of the second circulation pump 6 is connected to the output port of the water tank 7.

[0034] It is worth mentioning that the cabinet 1 is provided with a chamber 12 to accommodate the control box body 2. The chamber 12 is provided with a connecting part 13. Inclined surfaces 14 are provided on both sides of the bottom of the chamber 12. The first output end 11 is located between the two inclined surfaces 14. The chamber 12 confines the cooling water inside, and the inclined surfaces 14 allow the water with heat to be quickly discharged from the chamber 12 through the first output end 11.

[0035] It is worth mentioning that the control box body 2 is provided with a flange 22 and connected to the connecting part 13. The control box body 2 is provided with several explosion-proof sealing joints 9. The explosion-proof sealing joints 9 prevent cooling water and humid air from penetrating into the interior of the control box body 2.

[0036] It is worth mentioning that several explosion-proof sealing joints 9 are evenly distributed on both sides of the first output end 11 with the dot as the axis. The explosion-proof sealing joints 9 are also set on one side of the cabinet 1. The explosion-proof sealing joints 9 prevent the cooling water in the chamber 12 from flowing out from the gap where the cable passes through the cabinet 1.

[0037] It is worth mentioning that the sprinkler device 4 includes a main pipe 41 and branch pipes 42 set on both sides of the main pipe 41. The main pipe 41 is connected to the output port of the second circulation pump 6. The branch pipes 42 are provided with several equally spaced through holes 43 and are located above the control box body 2. The branch pipes 42 increase the cooling water coverage area, and the cooling water is discharged from the through holes 43.

[0038] It is worth mentioning that the water tank 7 is equipped with a second output end 71, which is connected to the input port of the second circulation pump 6;

[0039] It is worth mentioning that a cover 72 is provided on the top of the water tank 7. One end of the cover 72 is provided with a ventilation hole 73, and the other end of the cover 72 is provided with a heat dissipation hole 74. A filter screen 75 is provided at the air outlet of the ventilation hole 73. Outside air enters into the cover 72 through the ventilation hole 73 and is discharged through the heat dissipation hole 74. The filter screen 75 filters out impurities in the air. The filter screen 75 can be a pre-filter 75, and the material of the pre-filter 75 can be selected as synthetic fiber, non-woven fabric, metal mesh, etc.

[0040] It is worth mentioning that the heat exchange device 8 includes a heat exchange tube 81 and a cooling fan 82. The heat exchange tube 81 is provided with an input end 811 and a third output end 812. The input end 811 is connected to the output port of the first circulating pump 5, and the third output end 812 is connected to the input port of the water tank 7. The outer wall of the heat exchange tube 81 is provided with several equally spaced heat dissipation rings 813. The heat dissipation rings 813 increase the contact area with cold air, thereby improving the heat exchange efficiency. The heat exchange tube 81 is a curved pipe from top to bottom.

[0041] It is worth mentioning that the heat exchange tube 81 is set at the air outlet of the filter screen 75, and the cooling fan 82 is installed and fixed at the ventilation hole 73, and is located directly in front of the heat exchange tube 81.

[0042] The working principle of this utility model is described as follows:

[0043] The second circulation pump 6 continuously draws cooling water from the water tank 7 into the spray device 4. The cooling water comes into contact with the control box body 2 for heat exchange, thereby reducing the surface and internal temperature of the control box body 2. The heat dissipation fins 21 increase the heat exchange area between the cooling water and the control box body 2, further improving the heat exchange efficiency.

[0044] After exchanging heat, the cooling water becomes heated water and collects at the bottom of chamber 12. Subsequently, the first circulation pump 5 transports this heated water to the inlet 811 of the heat exchange tube 81.

[0045] The cooling fan 82 continuously draws in external cold air through the ventilation hole 73 and filters out impurities through the filter screen 75. The heat exchange tube 81 and the heat dissipation ring 813 exchange heat with the cold air, gradually converting the water with heat back into cooling water, and finally flowing back into the water tank 7 to form a complete circulation system.

[0046] The above design provides a suitable ambient temperature for explosion-proof electrical appliances, effectively improving their operational stability and reliability, extending their service life, and reducing the frequency of failures. This design overcomes the problems existing in the prior art and has the advantages of improving heat dissipation efficiency and extending service life.

[0047] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. An explosion-proof control box, comprising a cabinet (1) and a cooling device (3), characterized in that: The cabinet (1) is equipped with a control box body (2). The control box body (2) has several equally spaced heat dissipation fins (21) on its sides and back. The cabinet (1) is equipped with a water spraying device (4) on its upper inner side. The cabinet (1) is equipped with a first output end (11). The cooling device (3) includes a first circulation pump (5), a second circulation pump (6), a water tank (7), and a heat exchange device (8). The output port of the first circulation pump (5) is connected to the input port of the heat exchange device (8). The output port of the heat exchange device (8) is connected to the input port of the water tank (7). The input port of the first circulation pump (5) is connected to the first output end (11). The output port of the second circulation pump (6) is connected to the water spraying device (4). The input port of the second circulation pump (6) is connected to the output port of the water tank (7).

2. The explosion-proof control box according to claim 1, characterized in that: The cabinet (1) is provided with a chamber (12) for accommodating the control box body (2). The chamber (12) is provided with a connecting part (13). The bottom sides of the chamber (12) are provided with inclined surfaces (14). The first output end (11) is located between the two inclined surfaces (14).

3. The explosion-proof control box according to claim 2, characterized in that: The control box body (2) is provided with a flange (22) and connected to the connecting part (13). The bottom and one side of the control box body (2) are provided with several explosion-proof sealing joints (9).

4. The explosion-proof control box according to claim 1, characterized in that: Several explosion-proof sealing joints (9) are evenly distributed on both sides of the first output terminal (11) with the dot as the axis. The explosion-proof sealing joints (9) are also provided on one side of the cabinet (1).

5. The explosion-proof control box according to claim 1, characterized in that: The water spraying device (4) includes a main pipe (41) and branch pipes (42) arranged on both sides of the main pipe (41). The main pipe (41) is connected to the output port of the second circulation pump (6). The branch pipes (42) are provided with a number of equally spaced through holes (43) and are located above the control box body (2).

6. The explosion-proof control box according to claim 1, characterized in that: The water tank (7) is provided with a second output end (71) and is connected to the input port of the second circulation pump (6).

7. The explosion-proof control box according to claim 1, characterized in that: The water tank (7) is provided with a cover (72) on top. One end of the cover (72) is provided with a ventilation hole (73) and the other end of the cover (72) is provided with a heat dissipation hole (74). A filter screen (75) is provided at the air outlet of the ventilation hole (73).

8. The explosion-proof control box according to claim 7, characterized in that: The heat exchange device (8) includes a heat exchange tube (81) and a cooling fan (82). The heat exchange tube (81) is provided with an input end (811) and a third output end (812). The input end (811) is connected to the output port of the first circulating pump (5), and the third output end (812) is connected to the input port of the water tank (7). The outer wall of the heat exchange tube (81) is provided with a plurality of equally spaced cooling rings (813).

9. The explosion-proof control box according to claim 8, characterized in that: The heat exchange tube (81) is located at the air outlet of the filter screen (75), and the heat dissipation fan (82) is installed and fixed at the ventilation hole (73) and located directly in front of the heat exchange tube (81).

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