CN210040991U - External automatic dehumidifying device for compact knife switch mechanism box of transformer substation - Google Patents
External automatic dehumidifying device for compact knife switch mechanism box of transformer substation Download PDFInfo
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- CN210040991U CN210040991U CN201920635017.2U CN201920635017U CN210040991U CN 210040991 U CN210040991 U CN 210040991U CN 201920635017 U CN201920635017 U CN 201920635017U CN 210040991 U CN210040991 U CN 210040991U
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- disconnecting link
- mechanism box
- box
- exhaust fan
- link mechanism
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Abstract
The utility model discloses an external automatic dehumidification device for a compact type disconnecting link mechanism box of a transformer substation, which comprises a device box body positioned beside the disconnecting link mechanism box, and an exhaust fan, a drying tank, a controller and a relay which are positioned in the device box body; the controller is sequentially connected with the relay and the exhaust fan; the upper side of the exhaust fan is provided with an air guide pipe communicated with the interior of the disconnecting link mechanism box, the lower side of the exhaust fan is provided with a first air return pipe communicated with the drying tank, and the drying tank is further provided with a second air return pipe communicated with the interior of the disconnecting link mechanism box. This external automatic dehydrating unit simple structure, practical reliable can effectively reduce the inside air humidity of switch mechanism case to make its humidity keep at a lower level, avoid switch operating device corrosion, bite, improve electric wire netting equipment reliability.
Description
Technical Field
The application relates to the technical field of operation and maintenance of compact knife switch mechanism boxes of transformer substations, in particular to an external automatic dehumidification device for the compact knife switch mechanism boxes of the transformer substations.
Background
The 110kV and above disconnecting switch of a conventional transformer substation is arranged in an outdoor high-voltage equipment area, and a disconnecting link operating mechanism of the disconnecting switch is packaged in a mechanism box. Because the disconnecting link mechanism box is arranged outdoors, the mechanism box can be wet in spring festival, rainy season and other seasons with high humidity; and the mechanism box is closed, the water vapor in the mechanism box can not be automatically removed, and the disconnecting link operating mechanism can be corroded and jammed after a long time, so that the normal operation of the disconnecting link is influenced, and the reliability of the power grid equipment is adversely affected. In order to reduce the air humidity in the disconnecting link mechanism box, a heater is arranged in part of the disconnecting link mechanism box, so that the air temperature in the disconnecting link mechanism box is increased, and the problem of moisture in the mechanism box is relieved to a certain extent. However, mechanism boxes produced by part of disconnecting link manufacturers are compact in arrangement, limited in internal space and incapable of being additionally provided with heaters; and the failure rate of the heater in part of the knife switch mechanism box is higher because the heater is in a humid environment for a long time.
Therefore, it is necessary to develop an automatic dehumidification device with an external compact knife switch mechanism box for a transformer substation.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in, to prior art's not enough, provide an external automatic dehydrating unit for compact knife-switch mechanism case of transformer substation to solve the moist technical problem of compact knife-switch mechanism incasement portion of transformer substation.
In order to achieve the above object, the present invention provides the following technical solutions:
an external automatic dehumidification device for a compact disconnecting link mechanism box of a transformer substation comprises a device box body, an exhaust fan, a drying tank, a controller and a relay, wherein the device box body is positioned beside the disconnecting link mechanism box;
the controller is sequentially connected with the relay and the exhaust fan; the upper side of the exhaust fan is provided with an air guide pipe communicated with the interior of the disconnecting link mechanism box, the lower side of the exhaust fan is provided with a first air return pipe communicated with the drying tank, and the drying tank is further provided with a second air return pipe communicated with the interior of the disconnecting link mechanism box.
Optionally, the external automatic dehumidification device further comprises a humidity sensor located inside the disconnecting link mechanism box, and the humidity sensor is connected to the controller.
Optionally, a drying agent is arranged in the drying tank.
Optionally, the exhaust fan is connected with the air guide pipe and the first air return pipe in an airtight manner.
Optionally, the drying tank is connected with the first air return pipe and the second air return pipe in an airtight manner.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the application range is wide: the device can be used for not only the transformer substation disconnecting switch mechanism box with compact internal arrangement, but also other disconnecting switch mechanism boxes or other outdoor electrical box bodies in a transformer substation.
2. The installation is convenient: when the device is installed, only two round holes are required to be formed in the side face of the disconnecting link mechanism box for installing the air guide pipe, the air return pipe and the power supply leading-out and installing the sensor, and the internal mechanism and components of the existing box are not required to be modified.
3. The practicability is strong: the device can effectively reduce the internal humidity of the disconnecting switch mechanism box (or other outdoor electrical box bodies) of the transformer substation, avoid the corrosion and the jamming of the internal mechanism and the electrical elements of the box body, and improve the reliability of electrical equipment of the transformer substation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic structural view of an external automatic dehumidifying device for a compact knife switch mechanism box of a transformer substation.
Illustration of the drawings:
10. a device case; 20. an exhaust fan; 30. a drying tank; 40. a controller; 50. a relay; 60. an air guide pipe; 71. a first air return pipe; 72. a second return air duct; 80. a humidity sensor; 90. knife switch mechanism case.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention are clearly and completely described with reference to the drawings in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.
Furthermore, the terms "long", "short", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience of describing the present invention, but do not indicate or imply that the device or element referred to must have the specific orientation, operate in the specific orientation configuration, and thus, should not be construed as limiting the present invention.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
The embodiment provides an external automatic dehumidification device for a compact disconnecting link mechanism box of a transformer substation, which comprises a device box body 10, an exhaust fan 20, a drying tank 30, a controller 40 and a relay 50, wherein the device box body 10 is positioned beside a disconnecting link mechanism box 90;
the controller 40 is sequentially connected with the relay 50 and the exhaust fan 20; an air guide pipe 60 communicated with the interior of the disconnecting link mechanism box 90 is arranged on the upper side of the exhaust fan 20, a first air return pipe 71 communicated with the drying tank 30 is arranged on the lower side of the exhaust fan 20, and a second air return pipe 72 communicated with the interior of the disconnecting link mechanism box 90 is further arranged on the drying tank 30. Wherein, the exhaust fan 20 is connected with the air guide pipe 60 and the first air return pipe 71 in an airtight manner; the drying tank 30 is connected with the first air return pipe 71 and the second air return pipe 72 in an airtight manner.
Specifically, the air duct 60 is installed at an upper position of a side wall of the disconnecting link mechanism box 90 (mainly divided into upper positions of the space due to low water vapor density), and guides the moist air inside the disconnecting link mechanism box 90 to the drying tank 30; the second air return pipe 72 is installed at the lower part of the side wall of the disconnecting link mechanism box 90 and conveys the dehumidified air into the disconnecting link mechanism box 90; the exhaust fan 20 is installed in the middle of an air circulation loop of the external automatic dehumidifying device to provide power for the circulation dehumidification of the air in the mechanism box, a 24V power supply in the disconnecting link mechanism box 90 is used for getting electricity, a relay 50 is used as a switch, and the start and stop of the exhaust fan 20 are controlled by a signal output by the controller 40; the controller 40 is composed of a microcomputer control unit, can optimize and improve a dehumidification program, and obtains electricity from a 24V power supply in the disconnecting link mechanism box 90;
furthermore, a drying agent is stored in the drying tank 30, and the drying agent is of a moisture-sensitive color-changing type, so that whether the drying agent needs to be replaced or not is conveniently judged; the drying tank 30 is installed in the middle of an air circulation loop of the external automatic dehumidification device, removes moisture in air pumped out of the disconnecting link mechanism box 90, adopts a structure capable of being rapidly disassembled, and is convenient for daily maintenance;
further, the external automatic dehumidification device further comprises a humidity sensor 80 located inside the disconnecting link mechanism box 90, and the humidity sensor 80 is connected to the controller 40. The humidity sensor 80 can convert the humidity inside the mechanism compartment into a digital signal that is sent to the controller 40 to assist the controller 40 in controlling the operation of the suction fan 20.
It can be understood that the humidity sensor 80 is additionally arranged in the disconnecting link mechanism box 90, so that the dehumidifying device can judge whether to start the exhaust fan 20 to dehumidify the air in the disconnecting link mechanism box 90 according to the humidity information uploaded by the humidity sensor 80 in the disconnecting link mechanism box 90; in order to prolong the service life of the exhaust fan 20 and avoid the long-time operation of the exhaust fan 20, the operation of the fan is set to be 2 hours every time, and the operation is stopped for 15 minutes.
In practical application, an air dehumidifying loop is formed by the air guide pipe 60, the exhaust fan 20, the drying tank 30 and the return air pipe, and the humidity sensor 80 and the controller 40 are added, so that dehumidification is more targeted, unnecessary operation of the dehumidifying loop is avoided, a protection algorithm is set (the fan stops for 15 minutes every 2 hours), the service life of the exhaust fan 20 is prolonged, and the loss of consumable materials (drying agents) is reduced. The entire dehumidification loop is isolated from the switch mechanism box 90 from the outside air, preventing outside humid air from reentering the switch mechanism box 90. The controller 40 reads a signal of the humidity sensor 80 in real time, and starts the exhaust fan 20 to start dehumidification when the humidity in the disconnecting switch mechanism box 90 of the transformer substation reaches more than 60%; when the humidity in the knife gate mechanism box 90 drops to 40%, the suction fan 20 is stopped. Effectively reduce the inside air humidity of switch mechanism case to make its humidity keep at a lower level, avoid switch operating device corrosion, jam, improve electric wire netting equipment reliability.
Therefore, the external automatic dehumidifying device of the embodiment has the following advantages:
1. the application range is wide: the device can be used for not only the transformer substation disconnecting switch mechanism box with compact internal arrangement, but also other disconnecting switch mechanism boxes or other outdoor electrical box bodies in a transformer substation.
2. The installation is convenient: when the device is installed, only two round holes are required to be formed in the side face of the disconnecting link mechanism box for installing the air guide pipe, the air return pipe and the power supply leading-out and installing the sensor, and the internal mechanism and components of the existing box are not required to be modified.
3. The practicability is strong: the device can effectively reduce the internal humidity of the disconnecting switch mechanism box (or other outdoor electrical box bodies) of the transformer substation, avoid the corrosion and the jamming of the internal mechanism and the electrical elements of the box body, and improve the reliability of electrical equipment of the transformer substation.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (5)
1. An external automatic dehumidification device for a compact disconnecting link mechanism box of a transformer substation is characterized by comprising a device box body positioned beside the disconnecting link mechanism box, and an exhaust fan, a drying tank, a controller and a relay which are positioned in the device box body;
the controller is sequentially connected with the relay and the exhaust fan; the upper side of the exhaust fan is provided with an air guide pipe communicated with the interior of the disconnecting link mechanism box, the lower side of the exhaust fan is provided with a first air return pipe communicated with the drying tank, and the drying tank is further provided with a second air return pipe communicated with the interior of the disconnecting link mechanism box.
2. The external automatic dehumidifier for a compact disconnecting link box of a substation according to claim 1, further comprising a humidity sensor inside the disconnecting link box, wherein the humidity sensor is connected to the controller.
3. The external automatic dehumidification device for the compact blade switch mechanism box of the substation of claim 1, characterized in that a desiccant is arranged in the drying tank.
4. The external automatic dehumidification device for the compact disconnecting link box of the substation according to claim 1, wherein the exhaust fan is connected with the air guide pipe and the first air return pipe in an airtight manner.
5. The external automatic dehumidification device for the compact blade switch mechanism box of the substation of claim 1, wherein the drying tank is in airtight connection with the first and second return air pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920635017.2U CN210040991U (en) | 2019-05-06 | 2019-05-06 | External automatic dehumidifying device for compact knife switch mechanism box of transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920635017.2U CN210040991U (en) | 2019-05-06 | 2019-05-06 | External automatic dehumidifying device for compact knife switch mechanism box of transformer substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210040991U true CN210040991U (en) | 2020-02-07 |
Family
ID=69363509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920635017.2U Active CN210040991U (en) | 2019-05-06 | 2019-05-06 | External automatic dehumidifying device for compact knife switch mechanism box of transformer substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210040991U (en) |
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2019
- 2019-05-06 CN CN201920635017.2U patent/CN210040991U/en active Active
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