Automatic dehumidification device for box-type substation

Abstract

The utility model discloses a box-type transformer station automatic dehumidification device, which comprises a transformer station cabinet body and a temperature and humidity induction heating structure installed in the transformer station cabinet body, a dehumidification assembly is installed on the inner wall of the transformer station cabinet body, and a wiping assembly used for guiding condensation generated in the dehumidification process to transfer is installed on the dehumidification assembly. The dehumidification assembly comprises a carrier frame installed on the inner wall of the transformer substation cabinet body, an exhaust fan is installed on the side, close to the temperature and humidity induction heating structure, of the carrier frame, a plurality of refrigeration flow deflectors are installed in the carrier frame, and a flow guide frame used for collecting dripping condensation on the refrigeration flow deflectors is installed on the bottom wall of the carrier frame. According to the air conditioner, heated air can make full contact with the outer surfaces of the refrigeration flow deflectors, humid air with the relatively high temperature covers the surfaces of the refrigeration flow deflectors with the relatively low temperature, generated condensation drips downwards into the flow guide frame and is directly transferred and discharged, and removal of moisture in the humid air is accelerated in cooperation with an adsorption structure.

Description

Technical Field

[0001] The utility model relates to the technical field of dehumidification devices, in particular to an automatic dehumidification device for a box-type transformer substation. Background Art

[0002] In order to save costs, most high-voltage metal armored switchgear manufacturers use heating plates and temperature and humidity sensors for dehumidification. In fact, the heating plate only increases the condensation point of water vapor in the cabinet, and the moisture in the air still exists. Once the temperature difference increases, condensation will occur instantly, which will bring safety hazards to power operation. Therefore, this method cannot fundamentally solve the moisture problem. Over and over again, the insulation performance of the equipment in the cabinet will be greatly reduced, which will then cause power safety accidents. Utility Model Content

[0003] In view of the deficiencies of the prior art, the purpose of the present invention is to provide an automatic dehumidification device for a box-type substation to solve the problem in the above background technology that condensation generated during heating and dehumidification inside the box-type substation is difficult to remove.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a box-type substation automatic dehumidification device, comprising a substation cabinet and a temperature and humidity induction heating structure installed inside the substation cabinet, a dehumidification component is installed on the inner wall of the substation cabinet, and a wiping component for guiding the transfer of condensation generated during the dehumidification process is installed on the dehumidification component;

[0005] The dehumidification assembly includes a carrier frame installed on the inner wall of the substation cabinet, an exhaust fan is installed on the side of the carrier frame close to the temperature and humidity induction heating structure, a plurality of refrigeration guide plates are installed inside the carrier frame, a guide frame for collecting condensation dripping from the refrigeration guide plates is installed on the bottom wall of the carrier frame, and a drainage pipe extending from the substation cabinet is connected to one side of the guide frame.

[0006] Preferably, the inclination of the bottom wall of the guide frame is not less than 15°, and the width of the top surface of the guide frame is greater than the width of the refrigeration guide plate.

[0007] Preferably, at least two adsorption structures for cooperating with the exhaust fan to absorb water vapor are installed on the inner wall of the carrier frame, and the adsorption structures are located on the side of the refrigeration guide plate away from the exhaust fan.

[0008] Preferably, the bottom wall of the carrier frame is installed with an inclined plate located below the adsorption structure, and the top surface of the inclined plate is provided with a plurality of guide grooves for guiding the overflowing condensation on the adsorption structure to be discharged to the guide frame.

[0009] Preferably, the wiping assembly comprises a multi-section electric push rod mounted on a carrier frame, a connecting plate is mounted on the free end of the multi-section electric push rod, and the width of the connecting plate is consistent with the distance between the two adsorption structures.

[0010] Preferably, two solid cylinders are installed on the connecting plate, and the outer surfaces of the two solid cylinders are sleeved with extrusion sleeves that cooperate with the multi-section electric push rod to squeeze the condensation in the adsorption structure.

[0011] Preferably, a comb tooth structure is installed on one side of the connecting plate to cooperate with a multi-section electric push rod to wipe water droplets on the surfaces of both sides of a plurality of refrigeration guide plates.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model utilizes an exhaust fan to draw high-humidity air being heated by the temperature and humidity induction heating structure into the interior of the carrier frame, so that the heated air is fully in contact with the outer surface of the refrigeration guide plate, and the relatively high-temperature humid air covers the relatively low-temperature surface of the refrigeration guide plate, gradually condenses to form water droplets, and drips down to the inside of the guide frame and is discharged outward along the drain pipe, thereby achieving the purpose of effective dehumidification.

[0014] 2. The utility model utilizes an adsorption structure made of silica gel to absorb moisture in the passing air, thereby further accelerating the efficiency of eliminating water vapor in the humid air inside the cabinet space of the substation.

[0015] 3. The utility model utilizes a multi-section electric push rod to drive a solid cylinder and an extrusion sleeve to extrude the adsorption structure from top to bottom, thereby squeezing out the adsorbed moisture therein, and at the same time utilizes a comb tooth structure to scrape off the water droplets on the surfaces of both sides of a number of refrigeration guide plates from top to bottom, thereby effectively accelerating the efficiency of condensation discharge inside the substation cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the split structure of the dehumidification component of the utility model;

[0018] Figure 3 This is a schematic diagram of the installation structure of the carrier frame and the exhaust fan of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the wiping component of the utility model;

[0020] Figure 5 It is a schematic diagram of the installation structure of the adsorption structure and the extrusion sleeve of the utility model.

[0021] In the figure: 1. Substation cabinet; 2. Temperature and humidity induction heating structure; 3. Dehumidification component; 301. Carrier frame; 3011. Guide frame; 3012. Drain pipe; 302. Exhaust fan; 303. Refrigeration guide plate; 304. Adsorption structure; 305. Italic plate; 4. Wiping component; 401. Multi-section electric push rod; 402. Solid cylinder; 403. Extrusion sleeve; 404. Comb structure. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In order to save costs, most high-voltage metal armored switchgear manufacturers use heating plates and temperature and humidity sensors for dehumidification. In fact, the heating plate only increases the condensation point of water vapor in the cabinet, and the moisture in the air still exists. Once the temperature difference increases, condensation will occur instantly, which will bring safety hazards to the power operation. In addition, the temperature and humidity sensor is passive. It starts when the humidity in the cabinet reaches 60% or 50%, and stops when the humidity in the cabinet reaches 40%. This process is very slow. Because most switch cabinets only install a 300W aluminum alloy heater in the cable room and the trolley room, it takes at least three hours from the beginning of heating to the time when the humidity in the cabinet drops to 40%. At this time, condensation has already formed in the cabinet. Once the condensation is formed, it is difficult to eliminate it. Therefore, this method cannot fundamentally solve the moisture problem. Repeatedly, the insulation performance of the equipment in the cabinet will be greatly reduced, which will then cause power safety accidents.

[0024] See also Figure 1-Figure 4The utility model provides an automatic dehumidification device for a box-type substation, which can effectively solve the problem of eliminating condensation during heating and dehumidification inside the box-type substation. The temperature and humidity induction heating structure 2 is installed inside the substation cabinet 1 and is used to start heating when the humidity inside the substation cabinet 1 reaches a set value, so as to dehumidify the humid air inside the space. The dehumidification component 3 is installed on the inner wall of the substation cabinet 1 on the side away from the temperature and humidity induction heating structure 2. The wiping component 4 is installed on the dehumidification component 3 and is used to guide the transfer of condensation generated during the dehumidification process. The dehumidification component 3 includes a carrier frame 301 installed on the inner wall of the substation cabinet 1, and an exhaust fan 302 is installed on the side of the carrier frame 301 close to the temperature and humidity induction heating structure 2, which is used to accelerate the flow rate of the air heated by the temperature and humidity induction heating structure 2 inside the space of the substation cabinet 1 to the inside of the carrier frame 301. A plurality of cooling guide plates 303 are installed inside the carrier frame 301, and a guide frame 3011 for collecting condensation dripping on the cooling guide plates 303 is installed on the bottom wall of the carrier frame 301. A drainage pipe 3012 extending out of the substation cabinet 1 is connected to one side of the guide frame 3011. In actual application, the humid air inside the substation cabinet 1 is heated by the temperature and humidity induction heating structure 2, and the exhaust fan 302 is operated at the same time to draw the high-humidity air being heated into the interior of the carrier frame 301, so that the heated air is fully in contact with the outer surface of the cooling guide plate 303, and the relatively high-temperature humid air covers the relatively low-temperature surface of the cooling guide plate 303, and the moisture in the air will condense to form water droplets. As the water droplets gather more and more, the water droplets drip downward to the inside of the guide frame 3011 under the action of their own gravity. Since the inclination of the bottom wall of the guide frame 3011 is not less than 15°, and the top surface width of the guide frame 3011 is greater than the width of the cooling guide plate 303, the water droplets dripping inside the guide frame 3011 can be easily transferred to the outside of the substation cabinet 1 along its inclined bottom wall and the drain pipe 3012.

[0025] In order to further remove the humidity in the humid air inside the substation cabinet 1 space, Figure 2As shown, at least two adsorption structures 304 for cooperating with the exhaust fan 302 to absorb water vapor are installed on the inner wall of the carrier frame 301, and the adsorption structure 304 is located on the side of the cooling guide plate 303 away from the exhaust fan 302. The bottom wall of the carrier frame 301 is installed with an inclined plate 305 located below the adsorption structure 304, and the top surface of the inclined plate 305 is provided with a plurality of guide grooves for guiding the overflowing condensation on the adsorption structure 304 to be discharged to the guide frame 3011. When the exhaust fan 302 accelerates the rate at which the humid air enters the interior of the carrier frame 301, part of the humid air passing through the plurality of cooling guide plates 303 is intercepted by the adsorption structure 304. At this time, the adsorption structure 304 made of silica gel absorbs the moisture in the air passing through, and the overflowing condensation water drops drip down on the inclined plate 305, and at the same time, are discharged into the interior of the guide frame 3011 along the plurality of guide grooves for transfer, thereby further accelerating the elimination efficiency of the water vapor in the humid air inside the space of the substation cabinet 1.

[0026] When the cooling guide plate 303 contacts the humid air heated by the transformer substation cabinet 1 to form water droplets and the adsorption structure 304 adsorbs the water vapor in the humid air, the water droplets on the surface of the cooling guide plate 303 and the adsorption structure 304 are transferred relatively slowly. Figure 1 , Figure 3-Figure 5 As shown, in order to effectively speed up the transfer and discharge rate of water droplets on the refrigeration guide plate 303 and the adsorption structure 304, the wiping component 4 includes a multi-section electric push rod 401 installed on the carrier frame 301, and a connecting plate is installed at the free end of the multi-section electric push rod 401, and the width of the connecting plate is consistent with the spacing between the two adsorption structures 304, and two solid cylinders 402 are installed on the connecting plate. The outer surfaces of the two solid cylinders 402 are both provided with extrusion sleeves 403 that cooperate with the multi-section electric push rod 401 to squeeze the condensation in the adsorption structure 304, and the spacing between the extrusion sleeves 403 mounted on the two solid cylinders 402 is slightly smaller than the thickness of the adsorption structure 304, and a comb tooth structure 404 that cooperates with the multi-section electric push rod 401 to wipe the water droplets on the surfaces of both sides of a number of refrigeration guide plates 303 is installed on one side of the connecting plate. The multi-section electric push rod 401 is extended downward according to the set program to drive the connecting plate and the solid cylinder 402 to move downward. At the same time, the extrusion sleeve 403 follows and rolls downward along the surface of the adsorption structure 304, thereby generating an extrusion force on the adsorption structure 304, squeezing out the adsorbed water therein to restore its adsorption performance. In addition, the comb structure 404 follows and scrapes downward along both sides of a number of refrigeration guide plates 303 to scrape off the water droplets on the surface of the refrigeration guide plates 303, thereby effectively accelerating the rate of water droplet dripping and transfer on its surface.

[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A box-type substation automatic dehumidification device, comprising a substation cabinet (1) and a temperature and humidity induction heating structure (2) installed inside the substation cabinet (1), characterized in that: The inner wall of the transformer substation cabinet (1) is installed with a dehumidification component (3), and a wiping component (4) for guiding the transfer of condensation generated during the dehumidification process is installed on the dehumidification component (3); The dehumidification component (3) comprises a carrier frame (301) mounted on the inner wall of a transformer substation cabinet (1); an exhaust fan (302) is mounted on a side of the carrier frame (301) close to the temperature and humidity induction heating structure (2); a plurality of refrigeration guide plates (303) are mounted inside the carrier frame (301); a guide frame (3011) for collecting condensation dripping from the refrigeration guide plates (303) is mounted on the bottom wall of the carrier frame (301); and a drainage pipe (3012) extending out of the transformer substation cabinet (1) is connected to one side of the guide frame (3011).

2. The automatic dehumidification device for a box-type substation according to claim 1 is characterized in that: The inclination of the bottom wall of the guide frame (3011) is not less than 15°, and the width of the top surface of the guide frame (3011) is greater than the width of the refrigeration guide plate (303).

3. The automatic dehumidification device for a box-type substation according to claim 2 is characterized in that: At least two adsorption structures (304) for absorbing water vapor in cooperation with the exhaust fan (302) are installed on the inner wall of the carrier frame (301), and the adsorption structures (304) are located on a side of the refrigeration guide plate (303) away from the exhaust fan (302).

4. The automatic dehumidification device for a box-type substation according to claim 3 is characterized in that: The bottom wall of the carrier frame (301) is provided with an inclined plate (305) located below the adsorption structure (304), and the top surface of the inclined plate (305) is provided with a plurality of guide grooves for guiding the overflowing condensation on the adsorption structure (304) to be discharged to the guide frame (3011).

5. The automatic dehumidification device for a box-type substation according to claim 1 is characterized in that: The wiping assembly (4) comprises a multi-section electric push rod (401) mounted on a carrier frame (301), a connecting plate being mounted on a free end of the multi-section electric push rod (401), and a width of the connecting plate being consistent with a distance between two adsorption structures (304).

6. The automatic dehumidification device for a box-type substation according to claim 5 is characterized in that: Two solid cylinders (402) are installed on the connecting plate, and the outer surfaces of the two solid cylinders (402) are sleeved with extrusion sleeves (403) that cooperate with the multi-section electric push rod (401) to squeeze the condensation in the adsorption structure (304).

7. The automatic dehumidification device for a box-type substation according to claim 6 is characterized in that: A comb tooth structure (404) is installed on one side of the connection plate to cooperate with a multi-section electric push rod (401) to wipe water drops on the surfaces of both sides of a plurality of refrigeration guide plates (303).

Images