A dehumidifying device for a common-tank enclosed bus

Abstract

A dehumidification device for a shared-enclosed busbar, relating to the field of power equipment technology, includes an air supply main pipe and a return air pipe installed on the enclosed busbar body. One end of the return air pipe is connected to the enclosed busbar body and is equipped with a return air valve. The air supply main pipe is equipped with a branch pipe connected to it, and the other end of the branch pipe is connected to the enclosed busbar body. The branch pipe is equipped with an air inlet regulating valve. The air supply main pipe is equipped with a connecting pipe connected to it, and a dehumidification section is provided between the connecting pipe and the return air pipe. This utility model achieves multi-point air intake with adjustable flow by setting air inlet regulating valves on each branch pipe of the air supply main pipe, so as to facilitate the replacement of humid air in various parts of the enclosed busbar body. By setting a dehumidification section, the air entering the enclosed busbar body is heated and dried, thereby improving dehumidification efficiency. By setting a regeneration device, the moisture-absorbing material of the dehumidification section is regenerated for convenient subsequent use.

Description

Technical Field

[0001] This utility model relates to the field of power equipment technology, and in particular to a dehumidification device for a common-enclosed busbar. Background Technology

[0002] A common-enclosed busbar is a high-current power transmission device in which three-phase conductors are housed together in a metal enclosed structure box. The conductors are fixed by insulators, and the conductors are insulated from each other and from the outer casing by air. Rubber gaskets are used to seal the gaps between the access cover and the access flange, as well as between the busbar outer casing flange. Due to the low protection level of the common-enclosed busbar and the aging of the rubber gaskets after long-term operation, external moisture can easily enter the enclosed structure box of the busbar. When the relative humidity is high or the temperature drops, condensation can easily form inside the enclosed busbar, leading to a decrease in insulation performance.

[0003] Currently, there are two main methods for dealing with condensation on shared busbars: 1. Adding a heating tape inside the enclosure. This essentially increases the air temperature inside the shared busbar to reduce relative humidity, but it does not reduce the absolute humidity of the gas inside the shared busbar. Condensation will still occur after shutdown, preventing the busbar from being put back into operation. 2. Using compressed air to purge the inside of the shared busbar after shutdown. However, due to the poor sealing performance of the busbar, numerous leakage points, long length, and high air resistance, it is generally impossible to blow compressed air to the far end, and it cannot be guaranteed that the humid air in every part of the shared busbar can be replaced. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this utility model discloses a dehumidification device for a common-enclosure busbar. This utility model achieves efficient dehumidification of the common-enclosure busbar by setting an air supply pipe and a return pipe on the enclosed busbar body, setting a connecting pipe on the air supply pipe, and setting a dehumidification part on the connecting pipe and the return pipe.

[0005] To achieve the aforementioned objective, this utility model adopts the following technical solution:

[0006] A dehumidification device for a shared enclosed busbar includes an air supply main pipe and an air return pipe installed on the enclosed busbar body. One end of the air return pipe is connected to the enclosed busbar body and is equipped with an air return valve. The air supply main pipe is equipped with a branch pipe connected to it, and the other end of the branch pipe is connected to the enclosed busbar body. The branch pipe is equipped with an air inlet regulating valve. The air supply main pipe is equipped with a connecting pipe connected to it. A dehumidification section is provided between the connecting pipe and the air return pipe. The dehumidification section consists of a filter housing, a dehumidification filter, a dehumidification impeller, a dehumidification heater, and a dehumidification fan. The end of the air return pipe is connected to the dehumidification filter. The dehumidification filter is connected to one end of the filter housing. The dehumidification impeller is disposed inside the filter housing. The other end of the filter housing is equipped with a dehumidification heater connected to it. The dehumidification heater is equipped with a dehumidification fan. The air inlet of the dehumidification fan is connected to the dehumidification heater, and the air outlet of the dehumidification fan is connected to the end of the connecting pipe.

[0007] The main air supply pipe is equipped with at least two branch pipes, and each branch pipe is equipped with an air intake regulating valve.

[0008] The dehumidifier heater is electrically connected to an external controller, and the dehumidifier fan is electrically connected to an external switch.

[0009] The dehumidifying impeller is coaxially arranged with the filter housing and is rotatably connected to the filter housing. The dehumidifying impeller has a honeycomb structure.

[0010] The dehumidifying impeller is made of any one of silica gel, molecular sieve, or lithium chloride impregnated with a moisture-absorbing material.

[0011] The filter housing has a fixed housing on its side, and a rotary motor is installed inside the fixed housing. The rotary motor is electrically connected to an external controller. A pulley is installed on the output shaft of the rotary motor. The dehumidifying rotary wheel is connected to the pulley through a transmission belt. The rotary motor drives the dehumidifying rotary wheel to rotate.

[0012] The filter housing is equipped with a regeneration device, which includes a regeneration fan, a regeneration heater, and a regeneration filter. The air inlet of the regeneration fan is connected to one end of the filter housing, and the regeneration heater is connected to the other end of the filter housing. The air inlet of the regeneration heater is equipped with a regeneration filter.

[0013] The regenerative fan is electrically connected to an external switch, and the regenerative heater is electrically connected to an external controller.

[0014] This utility model discloses a dehumidification device for a common-enclosed busbar. It is highly practical and very convenient to use. By installing air intake regulating valves on each branch pipe of the air supply main pipe, it achieves multi-point air intake with adjustable flow rate, facilitating the replacement of humid air in various parts of the enclosed busbar body. The dehumidification section heats and dries the air entering the enclosed busbar body, improving dehumidification efficiency. A regeneration device regenerates the moisture-absorbing material in the dehumidification section, facilitating subsequent use. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram showing the positional relationship between the enclosed busbar body, the air supply main pipe, and the branch pipe of this utility model.

[0017] Figure 3 This is a side view of the dehumidification section of this utility model;

[0018] Figure 4 This is a cross-sectional view of the dehumidification section of this utility model;

[0019] In the diagram: 1. Enclosed busbar body; 2. Connecting pipe; 3. Return air pipe; 4. Filter housing; 5. Fixed housing; 6. Rotary motor; 7. Dehumidifying fan; 8. Dehumidifying heater; 9. Dehumidifying filter; 10. Air supply main pipe; 11. Diverter pipe; 12. Inlet regulating valve; 13. Return air valve; 14. Regeneration fan; 15. Regeneration heater; 16. Regeneration filter; 17. Dehumidifying rotor; 18. Pulley; 19. Drive belt. Detailed Implementation

[0020] The present invention will be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0021] Combined with appendix Figures 1-4 A dehumidification device for a shared enclosed busbar includes an air supply main pipe 10 and a return air pipe 3 installed on the enclosed busbar body 1. One end of the return air pipe 3 is connected to the enclosed busbar body 1 and is equipped with a return air valve 13. The air supply main pipe 10 is equipped with a branch pipe 11 connected to it, and the other end of each branch pipe 11 is connected to the enclosed busbar body 1. The branch pipe 11 is equipped with an air inlet regulating valve 12. The air supply main pipe 10 is equipped with a connecting pipe 2 connected to it. A dehumidification section is provided between the connecting pipe 2 and the return air pipe 3. The wet section consists of a filter housing 4, a dehumidifier 9, a dehumidifier impeller 17, a dehumidifier heater 8, and a dehumidifier fan 7. The end of the return air pipe 3 is connected to the dehumidifier 9. The dehumidifier 9 is connected to one end of the filter housing 4. The dehumidifier impeller 17 is installed inside the filter housing 4. The other end of the filter housing 4 is equipped with a dehumidifier heater 8 connected to it. The dehumidifier heater 8 is equipped with a dehumidifier fan 7. The air inlet of the dehumidifier fan 7 is connected to the dehumidifier heater 8, and the exhaust end of the dehumidifier fan 7 is connected to the end of the connecting pipe 2.

[0022] The main air supply pipe 10 is provided with at least two branch pipes 11, and each branch pipe 11 is provided with an air intake regulating valve 12.

[0023] The dehumidifier heater 8 is electrically connected to an external controller, which controls the heating temperature of the dehumidifier heater 8. The dehumidifier fan 7 is electrically connected to an external switch, which controls the switching on and off and the speed of the dehumidifier fan 7.

[0024] The dehumidifying impeller 17 is coaxially arranged with the filter housing 4 and is rotatably connected to the filter housing 4. The dehumidifying impeller 17 has a honeycomb structure, which ensures that the dehumidifying impeller 17 has a large moisture absorption area per unit volume and a fast dehumidification speed.

[0025] The dehumidifying impeller 17 is made of any one of silica gel, molecular sieve or lithium chloride impregnated with a moisture-absorbing material.

[0026] The filter housing 4 has a fixed housing 5 on its side, and a rotary motor 6 is installed inside the fixed housing 5. The rotary motor 6 is electrically connected to an external controller. A pulley 18 is installed on the output shaft of the rotary motor 6. The dehumidifying rotary wheel 17 is connected to the pulley 18 through a transmission belt 19. The rotary motor 6 drives the dehumidifying rotary wheel 17 to rotate.

[0027] The filter housing 4 is equipped with a regeneration device, which includes a regeneration fan 14, a regeneration heater 15, and a regeneration filter 16. The air inlet of the regeneration fan 14 is connected to one end of the filter housing 4, and the regeneration heater 15 is connected to the other end of the filter housing 4. The air inlet of the regeneration heater 15 is equipped with a regeneration filter 16.

[0028] The regeneration fan 14 is electrically connected to an external switch, which controls the switching and speed of the regeneration fan 14. The regeneration heater 15 is electrically connected to an external controller, which controls the heating temperature of the regeneration heater 15.

[0029] The dehumidification device for a common-enclosed busbar described in this embodiment involves opening the inlet regulating valve 12 and the return air valve 13 during operation. By controlling the flow rate of the regulating valve 12, dry air is blown to the far end of the enclosed busbar body 1, ensuring that the humid air inside the enclosed busbar body 1 is effectively replaced. Then, the dehumidifying fan 7 and the dehumidifying heater 8 are turned on, and the speed of the dehumidifying fan 7 and the heating temperature of the dehumidifying heater 8 are controlled. Air enters the air supply main pipe 10 through the connecting pipe 2 and enters the enclosed busbar body 1 through each branch pipe 11, creating a slight positive pressure inside the common-enclosed busbar body 1. The original humid air inside is discharged through the return air pipe 3 or enters the dehumidifying filter 9, and the external air and the return air... After being filtered, the air enters the filter housing 4. The rotary motor 6 drives the dehumidifying rotor 17 to rotate. The air passes through the dehumidifying rotor 17, which adsorbs water vapor to obtain dry gas. The honeycomb structure ensures that the dehumidifying rotor 17 has a large moisture absorption area per unit volume and a fast dehumidification speed. The dry gas re-enters the dehumidifying heater 8 for heating. The heated dry gas more effectively reduces the relative humidity inside the enclosed busbar body 1. The multi-point air intake with adjustable flow rate facilitates the replacement of humid air in various parts of the enclosed busbar body 1. During the dehumidification process, the regeneration fan 14, the regeneration heater 15, and the rotary motor 6 work simultaneously. After being heated by the regeneration filter 16, the external air flows through the dehumidifying rotor 17 after being absorbed by moisture. The hot air carries the desorbed water vapor and is discharged from the filter housing 4 by the regeneration fan 14, regenerating the dehumidifying rotor 17.

[0030] The parts of this utility model not described in detail are prior art. Although this utility model has been specifically shown and introduced in conjunction with preferred embodiments, there are many methods and approaches to implement this technical solution. The above description is only a preferred embodiment of this utility model. However, those skilled in the art should understand that various changes in form and detail can be made to this utility model without departing from the spirit and scope of this utility model as defined by the appended claims, and all such changes shall be within the protection scope of this utility model.

Claims

1. A dehumidification device for a shared enclosed busbar, comprising an air supply main pipe (10) and a return air pipe (3) installed on the enclosed busbar body (1), one end of the return air pipe (3) being connected to the enclosed busbar body (1), a return air valve (13) being provided on the return air pipe (3), branch pipes (11) connected to the air supply main pipe (10) being distributed thereon, the other end of each branch pipe (11) being connected to the enclosed busbar body (1), an air intake regulating valve (12) being provided on each branch pipe (11), and a connecting pipe (2) connected to the air supply main pipe (10), characterized in that: A dehumidification section is provided between the connecting pipe (2) and the return pipe (3). The dehumidification section consists of a filter housing (4), a dehumidification filter (9), a dehumidification impeller (17), a dehumidification heater (8), and a dehumidification fan (7). The end of the return pipe (3) is connected to the dehumidification filter (9). The dehumidification filter (9) is connected to one end of the filter housing (4). The dehumidification impeller (17) is located inside the filter housing (4). The other end of the filter housing (4) is provided with a dehumidification heater (8) connected to it. A dehumidification fan (7) is provided on the dehumidification heater (8). The air inlet of the dehumidification fan (7) is connected to the dehumidification heater (8), and the exhaust end of the dehumidification fan (7) is connected to the end of the connecting pipe (2).

2. The dehumidification device for a shared-enclosed busbar according to claim 1, characterized in that: The main gas supply pipe (10) is provided with at least two branch pipes (11).

3. The dehumidification device for a shared-enclosed busbar according to claim 1, characterized in that: The dehumidifier heater (8) is electrically connected to an external controller, and the dehumidifier fan (7) is electrically connected to an external switch.

4. The dehumidification device for a shared-enclosed busbar according to claim 1, characterized in that: The dehumidifying wheel (17) is coaxially arranged with the filter housing (4), and the dehumidifying wheel (17) is rotatably connected to the filter housing (4). The dehumidifying wheel (17) has a honeycomb structure.

5. The dehumidification device for a shared-enclosed busbar according to claim 4, characterized in that: The dehumidifying impeller (17) is made of any of the following impregnated moisture-absorbing materials: silica gel, molecular sieve, or lithium chloride.

6. The dehumidification device for a shared-enclosed busbar according to claim 4, characterized in that: The filter housing (4) has a fixed housing (5) on its side. The fixed housing (5) has a rotary motor (6) inside. The rotary motor (6) is electrically connected to an external controller. The output shaft of the rotary motor (6) has a pulley (18). The dehumidifying rotary wheel (17) and the pulley (18) are connected by a transmission belt (19). The rotary motor (6) drives the dehumidifying rotary wheel (17) to rotate.

7. The dehumidification device for a shared-enclosed busbar according to claim 6, characterized in that: The filter housing (4) is provided with a regeneration device, which includes a regeneration fan (14), a regeneration heater (15) and a regeneration filter (16). The air inlet of the regeneration fan (14) is connected to one end of the filter housing (4), and the regeneration heater (15) is connected to the other end of the filter housing (4). The air inlet of the regeneration heater (15) is provided with a regeneration filter (16).

8. The dehumidification device for a shared-enclosed busbar according to claim 7, characterized in that: The regenerating fan (14) is electrically connected to an external switch, and the regenerating heater (15) is electrically connected to an external controller.

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