CN211351439U - Humidity control system for electric cabinet - Google Patents

Abstract

The utility model discloses a humidity control system for an electrical cabinet, comprising a control switch, a temperature and humidity control device, an air circulation fan blade, a dehumidification circulation fan blade and a temperature and humidity detection device. The heat dissipation holes opened on the chip are connected, and the heat sink at one end of the transformer away from the heat dissipation pipe is connected to the dehumidification pipe, and the dehumidification circulating fan blade is connected to the dehumidification pipe through the dehumidification pipe. Several terminal dehumidification pipes are connected on the pipe, and the terminal dehumidification pipes are respectively connected with the dehumidification holes provided on the busbar sleeve and the cable sleeve. Solve the wet discharge phenomenon caused by poor air flow between the cable and the tube sleeve, use the heat of the transformer to dehumidify the inside of the electrical cabinet, and at the same time cool the transformer body, saving energy and environmental protection.

Description

An electrical cabinet humidity control system

technical field

The utility model relates to the technical field of electrical cabinets, in particular to a humidity control system for electrical cabinets.

Background technique

Electrical cabinets are made of steel to protect components from working properly. Electrical cabinets are widely used in chemical industry, environmental protection industry, power system, metallurgical system, industry, nuclear power industry, fire safety monitoring, transportation industry, etc. If the electrical cabinet is installed in an area where the environment is warm and humid all the year round, the inside of the electrical cabinet is very easy to condense due to moisture, which will reduce the insulation of the outer surface of the live equipment and cause abnormal discharge or even creepage phenomenon. At present, our company has found abnormal discharge in electrical cabinets in many wind farms. After inspection, it was found that it was caused by the humidity between the busbar and the bushing and between the cable and the cable bushing. In the prior art, although the configuration in the electrical room There are dehumidifiers, heaters and air conditioners, but the humidity control inside the cabinet has not been significantly improved, especially in the hidden area between the casing and the cable.

The purpose of the utility model is to design an electrical cabinet humidity control system to solve the problem of abnormal discharge caused by excessive humidity in the electrical cabinet, especially between cables and pipe sleeves.

Utility model content

The purpose of the present invention is to provide a humidity control system for an electrical cabinet to solve the problems raised in the above background technology.

To achieve the above object, the utility model provides the following technical solutions:

A humidity control system for an electrical cabinet, comprising a control switch, a temperature and humidity control device, an air circulation fan blade, a dehumidification circulation fan blade and a temperature and humidity detection device, the control switch is electrically connected with the temperature and humidity control device, and the temperature and humidity control device The device is electrically connected with the air circulation fan blade, the dehumidification circulation fan blade and the temperature and humidity detection device. The air circulation fan blade is connected with the heat dissipation hole opened on the heat dissipation fin of the transformer through the heat dissipation pipe, and the transformer is far away from the heat dissipation fin at one end of the heat dissipation pipe. It is connected with the dehumidification pipe, and the dehumidification circulating fan blades are communicated with the dehumidification pipe through the dehumidification pipe. The dehumidification pipe is installed with shunt pipes on both sides. The casing is connected with the dehumidification hole provided on the cable casing, and the side walls of the busbar casing and the cable casing are provided with an air outlet.

Preferably, the control switch, the temperature and humidity control device, the air circulation fan blade, and the dehumidification circulation fan blade are installed in the high pressure control room, and the temperature and humidity detection device is installed in the high pressure room.

Preferably, the air circulation fan blades and the dehumidification circulation fan blades are installed on the partition plate between the high pressure control chamber and the high pressure chamber close to the side of the high pressure control chamber, and the heat dissipation pipes and the dehumidification pipes enter through the air inlets opened on the partition plate. In the high-pressure chamber, a return air outlet is also opened on the partition between the high-pressure control chamber and the high-pressure chamber.

Preferably, the temperature and humidity control device, the air circulation fan blade, the dehumidification circulation fan blade and the temperature and humidity detection device are all electrically connected to a power supply, and the power supply is arranged in a low-voltage control room.

Preferably, sealing plates are fixedly installed on the heat sinks on both sides of the transformer, and the heat dissipation holes are arranged at an upper and lower interval on two adjacent heat sinks.

Preferably, the dehumidification holes of the busbar casing and the cable casing are arranged in the middle thereof, and the air outlets are arranged on the upper and lower sides of the dehumidification holes.

Compared with the prior art, the beneficial effects of the present utility model are:

1. The utility model can dehumidify the hidden space and area in a targeted manner through the dehumidification tube at the end, which can effectively solve the phenomenon of wet discharge caused by poor air flow between the cable and the tube sleeve, and ensure the normal operation of the internal equipment of the electrical cabinet. Reduce the incidence of electrical cabinet accidents;

2. The utility model can not only dehumidify, but also dissipate heat from the transformer. At the same time, the heat of the transformer is used to dehumidify the interior of the electrical cabinet, making full use of resources, saving energy and protecting the environment. When the heat of the transformer is insufficient for sufficient dehumidification, control the The dehumidification circulating fan blades work to achieve the purpose of full dehumidification.

The utility model uses the terminal dehumidification pipe to dehumidify the hidden space and area in a targeted manner, which can effectively solve the phenomenon of wet discharge caused by poor air flow between the cable and the pipe sleeve, and use the heat of the transformer for dehumidification inside the electrical cabinet. , At the same time, the temperature of the transformer body is cooled, energy saving and environmental protection.

Description of drawings

Fig. 1 is the overall system flow chart of the present utility model;

2 is a schematic diagram of the split structure of a heat sink of the present invention;

3 is a schematic diagram of the installation structure of the terminal dehumidification pipe of the present invention;

4 is a schematic diagram of the internal structure of the busbar sleeve of the present invention;

5 is a schematic diagram of the internal structure of the cable sleeve of the present invention;

FIG. 6 is a schematic structural diagram of an electrical cabinet of the present invention.

In the picture: 1 control switch, 2 temperature and humidity control device, 3 air circulation fan blades, 4 dehumidification circulation fan blades, 5 temperature and humidity detection device, 6 cooling pipes, 7 transformers, 8 cooling fins, 9 cooling holes, 10 dehumidification pipes, 11 dehumidification pipe, 12 branch pipe, 13 end dehumidification pipe, 14 busbar bushing, 15 cable bushing, 16 dehumidification hole, 17 air outlet, 18 high pressure control room, 19 high pressure room, 20 partition, 21 air inlet, 22 return Air outlet, 23 low-voltage control room, 24 sealing plate, 25 busbar, 26 cable.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to Figures 1-6, the present utility model provides a technical solution:

A humidity control system for an electrical cabinet, comprising a control switch 1, a temperature and humidity control device 2, an air circulation fan blade 3, a dehumidification circulation fan blade 4 and a temperature and humidity detection device 5, the control switch 1 is electrically connected with the temperature and humidity control device 2, The control switch 1 is used to control the on-off of the dehumidification system, the temperature and humidity control device 2 is used to set the temperature and humidity alarm value, and the real-time data of the temperature and humidity of the high pressure chamber detected by the temperature and humidity detection device 5 are collected. The circulation fan blade 3, the dehumidification circulation fan blade 4 and the temperature and humidity detection device 5 are electrically connected, and the temperature and humidity control device 2 controls the entire dehumidification system to work according to whether the real-time temperature and humidity data exceeds the set value, and the air circulation fan blade 3 passes through. The heat dissipation pipe 6 is communicated with the heat dissipation holes 9 opened on the heat dissipation fins 8 of the transformer 7, and the air blown by the air circulation fan blades 3 enters the heat dissipation pipe 6 and can take away the heat on the transformer 7 through the heat dissipation fins 8, and at the same time can be used for the heat dissipation pipe. The air flow inside 6 is heated, and the heated air flow can dehumidify the subsequently connected busbar bushing 14 and cable bushing 15. The heat sink 8 at one end of the transformer 7 away from the heat dissipation pipe 6 is connected to the dehumidification pipe 10, and the dehumidification circulating fan blade 4 passes through. The dehumidification pipe 11 is communicated with the dehumidification pipe 10. When the air circulation fan blades 3 are not sufficient for effective dehumidification, the dehumidification circulation fan blades 4 are controlled, and the air flow is heated and sent into the dehumidification pipe 11 through the dehumidification circulation fan blades 4. The air flow heated by the sheet 8 dehumidifies the busbar bushing 14 and the cable bushing 15 together. A shunt pipe 12 is installed on both sides of the dehumidification pipe 10. The shunt pipe 12 is connected with a number of terminal dehumidification pipes 13. Conceal the parts that are prone to moisture and on the busbar bushing 14 and the cable bushing 15 so as to dehumidify these areas with low air flow. 16 is connected, the side walls of the busbar sleeve 14 and the cable sleeve 15 are provided with an air outlet 17, and the dehumidified airflow enters the busbar sleeve 14 and the cable sleeve 15 through the dehumidification hole 16, and the gap area is dehumidified to prevent moisture accumulation. cause abnormal discharge.

As a preference, the control switch 1, the temperature and humidity control device 2, the air circulation fan blade 3, and the dehumidification circulation fan blade 4 are installed in the high-pressure control room 18, the temperature and humidity detection device 5 is installed in the high-pressure chamber 19, and the temperature and humidity detection device 5 is used for Try to detect the temperature inside the high-pressure chamber 19, through the end dehumidification pipe 13 to make each air-impermeable area form an airflow circulation, at this time, the temperature and humidity detection device 5 can more accurately reflect the temperature and humidity in the high-pressure chamber 19. The temperature and humidity control device 2, the air circulation fan blade 3, and the dehumidification circulation fan blade 4 are installed in the high-pressure control room 18 to facilitate later maintenance.

As a preference, the air circulation fan blade 3 and the dehumidification circulation fan blade 4 are installed on the side of the partition plate 20 between the high pressure control chamber 18 and the high pressure chamber 19 close to the high pressure control chamber 18, and the heat dissipation pipe 6 and the dehumidification pipe 11 pass through the partition plate 20. The air inlet 21 opened on the upper enters the high pressure chamber 19, and the partition plate 20 between the high pressure control chamber 18 and the high pressure chamber 19 is also provided with a return air outlet 22, and the air flow is blown into the high pressure through the air circulation fan blade 3 and the dehumidification circulation fan blade 4. Inside the chamber 19, the air return port 22 provided on the partition plate 20 enters the high pressure control chamber 18, thereby forming an air circulation.

As a preferred example, the temperature and humidity control device 2 , the air circulation fan blade 3 , the dehumidification circulation fan blade 4 and the temperature and humidity detection device 5 are all electrically connected to a power supply, and the power supply is arranged in the low-voltage control room 23 .

As a preference, sealing plates 24 are fixedly installed on the heat sinks 8 on both sides of the transformer 7 , and the heat dissipation holes 9 are arranged at an upper and lower interval on two adjacent heat sinks 8 . It flows in an S-shaped path, so as to fully take away the heat on the surface of the heat sink 8, and the heated airflow can better dehumidify.

As a preference, the dehumidification holes 16 of the busbar bushing 14 and the cable bushing 15 are arranged in the middle, the air outlet 17 is arranged on the upper and lower sides of the dehumidification hole 16, and the dehumidified airflow enters the busbar bushing 14 and the cable bushing through the dehumidification holes 16. 15, enter the air flow of the high pressure chamber through the air outlet 17 arranged up and down.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. The utility model provides an regulator cubicle humidity control system, includes control switch (1), atmospheric control device (2), air cycle flabellum (3), dehumidification circulation flabellum (4) and temperature and humidity detection device (5), its characterized in that: the temperature and humidity control device comprises a control switch (1) and a temperature and humidity control device (2) which are electrically connected, wherein the temperature and humidity control device (2) is electrically connected with an air circulation fan blade (3), a dehumidification circulation fan blade (4) and a temperature and humidity detection device (5), the air circulation fan blade (3) is communicated with a heat dissipation hole (9) formed in a heat dissipation pipe (6) and a heat dissipation fin (8) of a transformer (7), the heat dissipation fin (8) far away from one end of the heat dissipation pipe (6) of the transformer (7) is connected with a dehumidification pipe (10), the dehumidification circulation fan blade (4) is communicated with the dehumidification pipe (10) through a dehumidification pipe (11), shunt pipes (12) are installed on two sides of the dehumidification pipe (10), a plurality of terminal dehumidification pipes (13) are connected onto the shunt pipes (12), and the terminal dehumidification pipes (13) are respectively connected with dehumidification holes (16) formed in a bus sleeve (14) and a cable sleeve (15), and air outlets (17) are formed in the side walls of the bus sleeve (14) and the cable sleeve (15).

2. The humidity control system of an electrical cabinet according to claim 1, wherein: the control switch (1), the temperature and humidity control device (2), the air circulation fan blades (3) and the dehumidification circulation fan blades (4) are installed in a high-pressure control chamber (18), and the temperature and humidity detection device (5) is installed in a high-pressure chamber (19).

3. The humidity control system of an electrical cabinet according to claim 1 or 2, wherein: air cycle flabellum (3) and dehumidification cycle flabellum (4) are installed baffle (20) between high-pressure control room (18) and hyperbaric chamber (19) and are close to high-pressure control room (18) one side, air intake (21) that heat dissipation pipeline (6) and dehumidification pipeline (11) seted up on through baffle (20) get into hyperbaric chamber (19) in, return air inlet (22) have still been seted up on baffle (20) between hyperbaric chamber (18) and hyperbaric chamber (19).

4. The humidity control system of an electrical cabinet according to claim 1, wherein: temperature and humidity control device (2), air cycle flabellum (3), dehumidification cycle flabellum (4) and temperature and humidity detection device (5) all with power supply electric connection, power supply sets up in low-voltage control room (23).

5. The humidity control system of an electrical cabinet according to claim 1, wherein: and sealing plates (24) are fixedly mounted on the radiating fins (8) on two sides of the transformer (7), and the radiating holes (9) are arranged on the two adjacent radiating fins (8) at intervals.

6. The humidity control system of an electrical cabinet according to claim 1, wherein: the dehumidification holes (16) of the bus sleeve (14) and the cable sleeve (15) are formed in the middle of the bus sleeve, and the air outlets (17) are formed in the upper side and the lower side of the dehumidification holes (16).

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