Moisture removal and heat dissipation device of high-low voltage switch cabinet

Abstract

The invention provides a moisture removal and heat dissipation device of a high-low voltage switch cabinet, and relates to the technical field of high-low voltage switch cabinets. The moisture removal and heat dissipation device of the high-low voltage switch cabinet comprises a switch cabinet body, an air blower is fixedly connected to the upper end of the switch cabinet body, a circulating exhaust pipe is fixedly connected to one side of the air blower, a first connecting pipe is fixedly connected to the other side of the air blower, and a drying box is fixedly connected to one side of the first connecting pipe. A plurality of dehumidification frames are fixedly connected to the interior of the drying box, and dehumidification plates are fixedly connected to the interiors of the dehumidification frames. Through an air blower, a circulating exhaust pipe, a first connecting pipe, a drying box, a dehumidification frame, a dehumidification plate, a second connecting pipe, a cold air box, a semiconductor chilling plate, a flow guide plate, a third connecting pipe, a snake-shaped heat exchange pipe, a fourth connecting pipe, a cold air outlet and a temperature and humidity sensor, circulating heat dissipation and dehumidification are achieved, loss of cold air can be effectively reduced, and more energy consumption needed by refrigeration is saved.

Description

Technical Field

[0001] The invention relates to the technical field of high and low voltage switch cabinets, and in particular to a dehumidification and heat dissipation device for high and low voltage switch cabinets. Background Art

[0002] As the name suggests, high and low voltage switchgear is equipment for connecting high-voltage or low-voltage cables. Generally, power supply bureaus and substations use high-voltage cabinets, which are then stepped down by transformers to low-voltage cabinets, and then to distribution boxes for various electricity users. The cabinets are nothing more than some protective devices such as switches and circuit breakers assembled into one electrical equipment. Moreover, most of the current high and low voltage switchgears are composed of multiple sealed boxes fixed together.

[0003] In the prior art, high and low voltage switch cabinets often generate heat due to their working characteristics. If they are not cooled, there will be great safety hazards. The more common cooling methods on the market are to place the high and low voltage switch cabinets in a fixed area and use an external refrigerator to cool them, or to install a cooling fan on the side wall on one side of the cabinet, and open an air inlet on the other side to speed up the air flow rate in the cabinet to cool it. At the same time, a dehumidification device is installed at the air inlet to prevent humid air from entering the cabinet and causing a short circuit. However, the above method draws outside air into the switch cabinet and then cools it, so that the cold air exchanges heat with the switch cabinet body to achieve heat dissipation of the switch cabinet. It is necessary to continuously circulate the outside air, which is easy to cause the loss of cold air in the switch cabinet, resulting in a large energy consumption required for refrigeration. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the present invention provides a dehumidification and heat dissipation device for high and low voltage switch cabinets, which can extract hot air in the switch cabinet body through a blower, a circulating exhaust pipe, a first connecting pipe, a drying box, a dehumidification frame, a dehumidification plate, a second connecting pipe, a cold air box, a semiconductor refrigeration plate, a guide plate, a third connecting pipe, a serpentine heat exchange pipe, a fourth connecting pipe, a cold air outlet, and a temperature and humidity sensor. The hot air in the switch cabinet body can be extracted through a blower and a circulating exhaust pipe, and enter the drying box through the first connecting pipe, and be dried through the dehumidification plate. The dried air enters the cold air box through the second connecting pipe, and is cooled through the cooling surface of the semiconductor refrigeration plate. Through the action of the guide plate, the time that the air is in the cold wind is extended, so that the cooling effect is better. The cold air enters the serpentine heat exchange pipe through the third connecting pipe for heat exchange, and at the same time enters the fourth connecting pipe and is discharged through the cold air outlet. The cold air enters the switch cabinet body for heat dissipation, thereby realizing circulating heat dissipation and dehumidification, which can effectively reduce the loss of cold air and save the energy consumption required for refrigeration.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a dehumidification and heat dissipation device for high and low voltage switch cabinets, comprising a switch cabinet body, a blower is fixedly connected to the upper end of the switch cabinet body, a circulating exhaust pipe is fixedly connected to one side of the blower, a first connecting pipe is fixedly connected to the other side of the blower, a drying box is fixedly connected to one side of the first connecting pipe, a plurality of dehumidification frames are fixedly connected to the interior of the drying box, a dehumidification plate is fixedly connected to the interior of the dehumidification frame, a second connecting pipe is fixedly connected to one side of the drying box, a cold air box is fixedly connected to one side of the second connecting pipe, semiconductor refrigeration sheets are arranged on both sides of the cold air box, a plurality of guide plates are fixedly connected to the interior of the cold air box, a third connecting pipe is fixedly connected to one side of the cold air box, a serpentine heat exchange pipe is fixedly connected to the lower end of the third connecting pipe, a fourth connecting pipe is fixedly connected to one end of the serpentine heat exchange pipe, and a plurality of cold air outlets are opened at the upper end of the fourth connecting pipe;

[0008] An air pressure detection sensor and a temperature and humidity sensor are fixedly connected to the top of the switch cabinet body, an external exhaust pipe is fixedly connected to one side of the circulating exhaust pipe, drying pipes are arranged on both sides of the first connecting pipe, a plurality of heating plates are fixedly connected to the inside of the drying pipe, a plurality of drying frames are fixedly connected to one end of the drying pipe, a plurality of drying outlets are fixedly connected to the lower end of the drying frame, the drying outlets pass through the dehumidification frame, a dehumidification hood is fixedly connected to one side of the drying box, and a dehumidification pipe is fixedly connected to one side of the dehumidification hood.

[0009] Preferably, a first valve is provided inside the circulating air extraction pipe, and the circulating air extraction pipe runs through the switch cabinet body.

[0010] Preferably, a second valve is disposed inside the first connecting pipe.

[0011] Preferably, a third valve is disposed inside the second connecting pipe.

[0012] Preferably, an S-shaped channel is formed between the guide plate and the cold air box.

[0013] Preferably, the third connecting pipe passes through the switch cabinet body.

[0014] Preferably, a fourth valve is provided inside the external air extraction pipe, and a dustproof mesh plate is fixedly connected to the inside of the external air extraction pipe.

[0015] Preferably, a fifth valve is provided inside the drying tube.

[0016] Preferably, a sixth valve is provided inside the dehumidification pipe.

[0017] Preferably, a cabinet door is provided on one side of the switch cabinet body.

[0018] (III) Beneficial effects

[0019] The present invention provides a dehumidification and heat dissipation device for high and low voltage switch cabinets. It has the following beneficial effects:

[0020] 1. By arranging a blower, a circulating exhaust pipe, a first connecting pipe, a drying box, a dehumidification frame, a dehumidification plate, a second connecting pipe, a cold air box, a semiconductor refrigeration sheet, a guide plate, a third connecting pipe, a serpentine heat exchange pipe, a fourth connecting pipe, a cold air outlet, and a temperature and humidity sensor, the hot air in the switch cabinet body is extracted through the blower and the circulating exhaust pipe, enters the drying box through the first connecting pipe, is dried through the dehumidification plate, and the dried air enters the cold air box through the second connecting pipe, is cooled by the cooling surface of the semiconductor refrigeration sheet, and the air is prolonged in the cold air box through the guide plate to achieve better cooling effect. The cold air enters the serpentine heat exchange pipe through the third connecting pipe, exchanges heat with the hot air inside the switch cabinet body, and enters the fourth connecting pipe at the same time, is discharged through the cold air outlet, and the cold air enters the switch cabinet body to dissipate heat, thereby realizing circulating heat dissipation and dehumidification, which can effectively reduce the loss of cold air and save the energy consumption required for refrigeration.

[0021] 2. By setting up an air pressure detection sensor and an external air extraction pipe, when the air pressure inside the switch cabinet body is insufficient, the outside air is drawn into the switch cabinet body through a blower to supplement the air that can meet the circulation. Through the drying tube, heating plate, drying frame, dehumidification hood and dehumidification pipe, when it is necessary to ventilate the air inside the switch cabinet body, the air enters the drying tube through the first connecting pipe and is heated by the heating plate. The heated air enters the drying frame and dries the dehumidification plate without manual processing. The dehumidification operation of the switch cabinet body can be met, and the moisture generated after heating is discharged from the drying box through the dehumidification hood and dehumidification pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the cabinet door opening of the present invention;

[0024] Figure 3 is a cross-sectional view of a drying oven of the present invention;

[0025] Figure 4 It is a schematic diagram of the internal structure of the cold air box of the present invention;

[0026] Figure 5 For the present invention Figure 3 The enlarged schematic diagram at A in the middle;

[0027] Figure 6It is a schematic diagram of the structure of the dehumidification frame, dehumidification plate and drying frame of the present invention.

[0028] Among them, 1. switch cabinet body; 2. cabinet door; 3. blower; 4. circulating exhaust pipe; 5. first valve; 6. first connecting pipe; 7. drying box; 8. second valve; 9. dehumidification frame; 10. dehumidification plate; 11. second connecting pipe; 12. third valve; 13. cold air box; 14. semiconductor refrigeration plate; 15. guide plate; 16. third connecting pipe; 17. serpentine heat exchange pipe; 18. fourth connecting pipe; 19. cold air outlet; 20. air pressure detection sensor; 21. temperature and humidity sensor; 22. external exhaust pipe; 23. fourth valve; 24. drying pipe; 25. fifth valve; 26. heating plate; 27. drying frame; 28. dehumidification hood; 29. ​​dehumidification pipe; 30. sixth valve. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Embodiment 1:

[0031] like Figure 1-6As shown, an embodiment of the present invention provides a dehumidification and heat dissipation device for a high and low voltage switch cabinet, comprising a switch cabinet body 1, a blower 3 is fixedly connected to the upper end of the switch cabinet body 1, a circulating exhaust pipe 4 is fixedly connected to one side of the blower 3, a first connecting pipe 6 is fixedly connected to the other side of the blower 3, a drying box 7 is fixedly connected to one side of the first connecting pipe 6, a plurality of dehumidification frames 9 are fixedly connected to the interior of the drying box 7, a dehumidification plate 10 is fixedly connected to the interior of the dehumidification frame 9, a second connecting pipe 11 is fixedly connected to one side of the drying box 7, A cold air box 13 is fixedly connected to one side of the second connecting pipe 11, semiconductor refrigeration sheets 14 are arranged on both sides of the cold air box 13, a plurality of guide plates 15 are fixedly connected to the interior of the cold air box 13, a third connecting pipe 16 is fixedly connected to one side of the cold air box 13, a serpentine heat exchange pipe 17 is fixedly connected to the lower end of the third connecting pipe 16, a fourth connecting pipe 18 is fixedly connected to one end of the serpentine heat exchange pipe 17, a plurality of cold air outlets 19 are opened at the upper end of the fourth connecting pipe 18, and a blower 3, a circulating exhaust pipe 4, and a first The connecting pipe 6, the drying box 7, the dehumidification frame 9, the dehumidification plate 10, the second connecting pipe 11, the cold air box 13, the semiconductor refrigeration sheet 14, the guide plate 15, the third connecting pipe 16, the serpentine heat exchange pipe 17, the fourth connecting pipe 18, the cold air outlet 19, the temperature and humidity sensor 21, the hot air in the switch cabinet body 1 is extracted through the blower 3 and the circulating exhaust pipe 4, and enters the drying box 7 through the first connecting pipe 6, and is dried through the dehumidification plate 10. The dried air enters the cold air box 13 through the second connecting pipe 11, and the air is circulated. The cooling surface of the semiconductor refrigeration plate 14 is cooled, and the air is kept in the cold air box 13 for a longer time through the function of the guide plate 15, so that the cooling effect is better. The cold air enters the serpentine heat exchange tube 17 through the third connecting pipe 16, exchanges heat with the hot air inside the switch cabinet body 1, and enters the fourth connecting pipe 18 at the same time, and is discharged through the cold air outlet 19. The cold air enters the switch cabinet body 1 to dissipate heat, realizing cyclic heat dissipation and dehumidification, which can effectively reduce the loss of cold air and save the energy consumption required for refrigeration.

[0032] The top of the switch cabinet body 1 is fixedly connected with an air pressure detection sensor 20 and a temperature and humidity sensor 21, one side of the circulating exhaust pipe 4 is fixedly connected with an external exhaust pipe 22, both sides of the first connecting pipe 6 are provided with drying pipes 24, the interior of the drying pipe 24 is fixedly connected with a plurality of heating plates 26, one end of the drying pipe 24 is fixedly connected with a plurality of drying frames 27, the lower end of the drying frame 27 is fixedly connected with a plurality of drying outlets, and the drying outlets pass through the dehumidification frame 9, one side of the drying box 7 is fixedly connected with a dehumidification cover 28, and one side of the dehumidification cover 28 is fixedly connected with a dehumidification pipe 29. By arranging the air pressure monitoring sensor 20 and the external exhaust pipe 22, when the switch cabinet When the air pressure inside the main body 1 is insufficient, the outside air is drawn into the switch cabinet main body 1 through the blower 3 to supplement the air that can meet the circulation needs. When the air inside the switch cabinet main body 1 needs to be ventilated, the air enters the drying pipe 24 through the first connecting pipe 6 and is heated by the heating plate 26. The heated air enters the drying frame 27 and dries the dehumidification plate 10. No manual processing is required, which can meet the dehumidification operation of the switch cabinet main body 1. The moisture generated after heating is discharged from the drying box 7 through the dehumidification hood 28 and the dehumidification pipe 29.

[0033] A first valve 5 is provided inside the circulating exhaust pipe 4, the circulating exhaust pipe 4 runs through the switch cabinet body 1, a second valve 8 is provided inside the first connecting pipe 6, a third valve 12 is provided inside the second connecting pipe 11, an S-shaped channel is formed between the guide plate 15 and the cold air box 13, the third connecting pipe 16 runs through the switch cabinet body 1, a fourth valve 23 is provided inside the external exhaust pipe 22, a dustproof mesh plate is fixedly connected to the inside of the external exhaust pipe 22, a fifth valve 25 is provided inside the drying pipe 24, a sixth valve 30 is provided inside the dehumidification pipe 29, and a cabinet door 2 is provided on one side of the switch cabinet body 1.

[0034] Working principle: When in use, the temperature and humidity in the switch cabinet body 1 are monitored by the temperature and humidity sensor 21. When the temperature and humidity are higher than the set value, the blower 3 is started, the first valve 5 is opened, and the hot air in the switch cabinet body 1 is extracted through the circulating exhaust pipe 4. The second valve 8 is opened, and the hot air enters the drying box 7 through the first connecting pipe 6. The moisture in the hot air is dried multiple times by the multiple groups of dehumidification plates 10 in the drying box 7. The third valve 12 is opened, and the dried air enters the cold air box 13 through the second connecting pipe 11. The cooling surface of the semiconductor refrigeration plate 14 on the side of the cold air box 13 is used for cooling. Through the action of the guide plate 15, the time of air in the cold air box 13 is prolonged to achieve better cooling effect. The cold air enters the serpentine heat exchange tube 17 through the third connecting pipe 16, exchanges heat with the hot air inside the switch cabinet body 1, and enters the fourth connecting pipe 18 at the same time. It is discharged through the cold air outlet 19, and the cold air enters the switch cabinet body 1 to dissipate heat, realizing circulating heat dissipation and dehumidification. It can effectively reduce the loss of cold air and save the energy consumption required for refrigeration. When the air pressure detection sensor 20 detects that the air pressure in the switch cabinet body 1 is insufficient, the fourth valve 23 is opened, and the external air exhaust pipe 22 extracts the external air. The extracted external air filters the dust through the dustproof mesh plate and mixes with the air in the circulating air exhaust pipe 4 to supplement the air that can meet the circulation. When it is necessary to ventilate the air inside the switch cabinet body 1, the second valve 8 and the third valve 12 are closed, the fifth valve 25 and the sixth valve 30 are opened, and the blower 3 extracts the air in the switch cabinet body 1 through the circulating air exhaust pipe 4. The air enters the drying pipe 24 through the first connecting pipe 6, and the heating plate 26 is started. The air is heated by the heating plate 26. The heated air enters the drying frame 27, and the hot air dries the dehumidification plate 10 without manual treatment. The dehumidification operation of the switch cabinet body 1 can be met, and the moisture generated after heating is discharged from the drying box 7 through the dehumidification hood 28 and the dehumidification pipe 29.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dehumidification and heat dissipation device for a high and low voltage switch cabinet, comprising a switch cabinet body (1), characterized in that: The upper end of the switch cabinet body (1) is fixedly connected to a blower (3), one side of the blower (3) is fixedly connected to a circulating exhaust pipe (4), the other side of the blower (3) is fixedly connected to a first connecting pipe (6), one side of the first connecting pipe (6) is fixedly connected to a drying box (7), the interior of the drying box (7) is fixedly connected to a plurality of dehumidification frames (9), the interior of the dehumidification frame (9) is fixedly connected to a dehumidification plate (10), one side of the drying box (7) is fixedly connected to a second connecting pipe (11), the second connecting pipe (11 ) is fixedly connected to one side of the cold air box (13), semiconductor refrigeration plates (14) are arranged on both sides of the cold air box (13), a plurality of guide plates (15) are fixedly connected to the inside of the cold air box (13), a third connecting pipe (16) is fixedly connected to one side of the cold air box (13), a serpentine heat exchange pipe (17) is fixedly connected to the lower end of the third connecting pipe (16), a fourth connecting pipe (18) is fixedly connected to one end of the serpentine heat exchange pipe (17), and a plurality of cold air outlets (19) are provided at the upper end of the fourth connecting pipe (18); The top of the switch cabinet body (1) is fixedly connected with an air pressure detection sensor (20) and a temperature and humidity sensor (21); one side of the circulating exhaust pipe (4) is fixedly connected with an external exhaust pipe (22); both sides of the first connecting pipe (6) are provided with drying pipes (24); a plurality of heating plates (26) are fixedly connected inside the drying pipe (24); one end of the drying pipe (24) is fixedly connected with a plurality of drying frames (27); the lower end of the drying frame (27) is fixedly connected with a plurality of drying outlets, and the drying outlets pass through the dehumidification frame (9); one side of the drying box (7) is fixedly connected with a dehumidification cover (28); one side of the dehumidification cover (28) is fixedly connected with a dehumidification pipe (29).

2. The dehumidification and heat dissipation device for high and low voltage switch cabinets according to claim 1 is characterized in that: A first valve (5) is arranged inside the circulating air extraction pipe (4), and the circulating air extraction pipe (4) passes through the switch cabinet body (1).

3. The dehumidification and heat dissipation device for high and low voltage switch cabinets according to claim 1 is characterized in that: A second valve (8) is arranged inside the first connecting pipe (6).

4. The dehumidification and heat dissipation device for high and low voltage switch cabinets according to claim 1, characterized in that: A third valve (12) is arranged inside the second connecting pipe (11).

5. The dehumidification and heat dissipation device for high and low voltage switch cabinets according to claim 1, characterized in that: An S-shaped channel is formed between the guide plate (15) and the cold air box (13).

6. The dehumidification and heat dissipation device for high and low voltage switch cabinets according to claim 1, characterized in that: The third connecting pipe (16) passes through the switch cabinet body (1).

7. The dehumidification and heat dissipation device for high and low voltage switch cabinets according to claim 1, characterized in that: A fourth valve (23) is arranged inside the external air extraction pipe (22), and a dustproof screen is fixedly connected to the inside of the external air extraction pipe (22).

8. The dehumidification and heat dissipation device for high and low voltage switch cabinets according to claim 1, characterized in that: A fifth valve (25) is arranged inside the drying pipe (24).

9. The dehumidification and heat dissipation device for high and low voltage switch cabinets according to claim 1, characterized in that: A sixth valve (30) is arranged inside the moisture removal pipe (29).

10. The dehumidification and heat dissipation device for high and low voltage switch cabinets according to claim 1, characterized in that: A cabinet door (2) is provided on one side of the switch cabinet body (1).

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