CN109193391B - High tension switchgear prevents static protection system - Google Patents
High tension switchgear prevents static protection system Download PDFInfo
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- CN109193391B CN109193391B CN201811279770.9A CN201811279770A CN109193391B CN 109193391 B CN109193391 B CN 109193391B CN 201811279770 A CN201811279770 A CN 201811279770A CN 109193391 B CN109193391 B CN 109193391B
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- switch cabinet
- cooling plate
- communicated
- protection system
- water
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
- H05F3/00—Carrying-off electrostatic charges
- H05F3/06—Carrying-off electrostatic charges by means of ionising radiation
Abstract
The invention provides an anti-static protection system of a high-voltage switch cabinet, which comprises a monitoring mechanism, a control mechanism, a heating mechanism, a static electricity removing mechanism and a condensing mechanism, wherein the monitoring mechanism, the control mechanism, the heating mechanism and the static electricity removing mechanism are arranged in the switch cabinet, the condensing mechanism comprises a refrigeration cavity arranged on the inner side wall of the switch cabinet, a first heat preservation layer is arranged on the inner surface of the refrigeration cavity, a cooling plate is arranged in the refrigeration cavity, a flow cavity is arranged in the cooling plate in a hollow mode, the upper end of the cooling plate is provided with an air outlet communicated with the flow cavity, the lower end of the cooling plate is provided with an air inlet communicated with the flow cavity, the air inlet is communicated with the refrigeration mechanism, and the air outlet is communicated with an exhaust mechanism. The invention can eliminate static electricity in the switch cabinet and neutralize the charges of certain electrified parts during partial discharge, and can prevent the damage caused by aggravation of the static electricity in the switch cabinet and the partial discharge caused by condensation in the switch cabinet.
Description
Technical Field
The invention relates to the technical field of switch cabinets, in particular to an anti-static protection system of a high-voltage switch cabinet.
Background
With the increasing expansion of the power grid scale, higher requirements are made on the stability and reliability of the switch cabinet and the operation condition of the electrical equipment. In recent years, economic losses due to switchgear failures have also been on the rise year by year. The design of medium and high voltage switch cabinets is increasingly miniaturized along with the improvement of production technology and process level under the influence of floor area, geographical conditions and the like, so that the requirement on the insulating property of insulating devices is higher and higher. There are a lot of to the insulating influence condition of cubical switchboard, the biggest inside partial discharge phenomenon of cubical switchboard that is, especially aggravate partial discharge's harm after the cubical switchboard is inside to appear the condensation, consequently need set up in the cubical switchboard and prevent the device that static harm just prevents the condensation.
The publication number is 108039656A's patent discloses a condensation prevention switch cabinet, the intelligent cabinet temperature adjusting device comprises a cabinet body, be provided with a plurality of vents on the cabinet body, be provided with dehumidification ventilation unit in the vent, dehumidification ventilation unit includes cylindric casing, casing one end is separated into a plurality of cavitys through the baffle, a plurality of cavity both ends are provided with inside heating wire and are filled there is the silica gel drier of being equipped with of silk screen, the casing lateral wall slides and is provided with a plurality of sliders, be equipped with the apron that is used for closing the cavity lid on the slider, be equipped with the motor in the casing, be connected with fan and a plurality of first belt pulley on the motor output shaft, a plurality of first belt pulleys pass through belt drive with a plurality of second belt pulleys respectively and are connected, be provided with the pivot with a plurality of apron one-to-ones, the second belt pulley passes through the reduction gears transmission with the pivot, the one end that the pivot is close to the apron is provided with first inclined plane, be provided with the second inclined plane on the apron, be provided with the extension spring between slider and the casing, be provided with conductive contact piece on the apron. This kind of prevent condensation cubical switchboard can prevent the condensation and avoid maintaining. However, these patents prevent condensation by heating, too high temperature in the switch cabinet also affects the operation of the equipment, and no device for protecting partial discharge is provided inside the switch cabinet, so the effect is not ideal.
Disclosure of Invention
In view of the above, the present invention provides an anti-static protection system for a high voltage switch cabinet, which can eliminate static electricity in the switch cabinet and neutralize charges at certain charged portions during partial discharge, and can prevent condensation from occurring in the switch cabinet to aggravate damages caused by the static electricity and the partial discharge in the switch cabinet.
In order to solve the problems, the invention provides an anti-static protection system of a high-voltage switch cabinet, which comprises a monitoring mechanism, a control mechanism, a heating mechanism, a static clearing mechanism and a condensing mechanism, wherein the monitoring mechanism, the control mechanism, the heating mechanism, the static clearing mechanism and the condensing mechanism are arranged in the switch cabinet, the condensing mechanism comprises a refrigeration cavity arranged on the inner side wall of the switch cabinet, a first heat preservation layer is arranged on the inner surface of the refrigeration cavity, a cooling plate is arranged in the refrigeration cavity, a flow cavity is arranged in the cooling plate in a hollow mode, an air outlet communicated with the flow cavity is arranged at the upper end of the cooling plate, an air inlet communicated with the flow cavity is arranged at the lower end of the cooling plate, the air inlet is communicated with the refrigeration mechanism, the air outlet is communicated with an exhaust mechanism, and the control mechanism is in signal connection with the monitoring mechanism, the heating mechanism, the static clearing mechanism and the refrigeration mechanism.
Further, the control mechanism adopts a microcontroller, and the monitoring mechanism comprises a temperature and humidity sensor.
Furthermore, the refrigerating mechanism adopts a central air conditioner, and a cold air pipeline of the central air conditioner is communicated with the air inlet through a drainage pipeline.
Furthermore, exhaust mechanism include with the blast pipe of the L type of gas outlet intercommunication, the blast pipe is worn out from the lateral wall of cubical switchboard, the blast pipe is located the regional parcel of cubical switchboard inside and is set up the second heat preservation.
Further, the cooling plate outside sets up comdenstion water adsorption device, comdenstion water adsorption device includes the diaphragm that cooling plate lower extreme lateral surface set up, set up the arc wall on the diaphragm, set up the strip that absorbs water in the arc wall.
Furthermore, the water absorption strip comprises a water absorption core and a permeable layer wrapping the water absorption core, the water absorption core adopts water-absorbent resin particles, and the permeable layer adopts polyester fabric.
Furthermore, the cubical switchboard inboard corresponds the cooling plate sets up the comdenstion water and clears away the mechanism, the comdenstion water is clear away the mechanism and is included the base that sets up on the cubical switchboard inside wall, set up the lifter on the base, the lifter upper end sets up the support of L type, the tip level of support set up with the rubber scraping strip of cooling plate contact.
Further, the static electricity removing mechanism comprises a mounting frame arranged at the bottom of the switch cabinet, a miniature ion fan is horizontally arranged at the top of the mounting frame, and the temperature rising mechanism is arranged below the miniature ion fan.
Furthermore, the temperature raising mechanism comprises an air inlet cylinder arranged below an air inlet of the miniature ion fan, and a heating resistance wire is arranged in the air inlet cylinder.
The invention provides an anti-static protection system of a high-voltage switch cabinet, which comprises a monitoring mechanism, a control mechanism, a heating mechanism, a static clearing mechanism and a condensing mechanism, wherein the monitoring mechanism, the control mechanism, the heating mechanism, the static clearing mechanism and the condensing mechanism are arranged in the switch cabinet, the condensing mechanism comprises a refrigeration cavity arranged on the inner side wall of the switch cabinet, a first heat preservation layer is arranged on the inner surface of the refrigeration cavity, a cooling plate is arranged in the refrigeration cavity, a flow cavity is arranged in the cooling plate in a hollow mode, an air outlet communicated with the flow cavity is arranged at the upper end of the cooling plate, an air inlet communicated with the flow cavity is arranged at the lower end of the cooling plate, the air inlet is communicated with the refrigerating mechanism, the air outlet is communicated with an exhaust mechanism, and the control mechanism is in signal connection with the monitoring mechanism, the heating mechanism, the static clearing mechanism and the refrigerating mechanism.
Monitoring mechanism can monitor the humiture in the cubical switchboard, and control mechanism is responsible for receiving monitoring information and controls each mechanism according to predetermined threshold value, and the moisture in the cubical switchboard is all clear away to intensification mechanism and condensation mechanism, and cooperation result of use is better. Static elimination mechanism eliminates the static in the cubical switchboard, avoids insulating breakdown especially under the humid environment insulating layer damage more easily after the time of having a specified duration. Work under condensation mechanism control mechanism's control, refrigeration mechanism produces air conditioning and enters into the inside flow chamber of cooling plate through the air inlet, exhaust mechanism from the cooling plate upper end discharges again, the first heat preservation that the position that the cooling plate is connected with the refrigeration chamber of cubical switchboard set up, avoid its heat that absorbs the cubical switchboard lateral wall, make the temperature of cooling plate lateral wall can be lower, if the inside moisture of cubical switchboard is great like this, steam can condense on the cooling plate, thereby inside humidity has been reduced.
The control mechanism adopts a microcontroller, and the monitoring mechanism comprises a temperature and humidity sensor. The control mechanism is controlled by a microcontroller, a main control chip of the control mechanism can adopt an 89C51 singlechip, and a temperature and humidity sensor can adopt an HTU21 temperature and humidity sensor, and can also adopt independent sensors such as DS18B20 and HF3223 type humidity sensors.
The refrigerating mechanism adopts a central air conditioner, and a cold air pipeline of the central air conditioner is communicated with the air inlet through a drainage pipeline. The refrigeration mechanism can use a central air conditioner, and can provide cold air for all switch cabinets in equipment rooms or plants by arranging cold air pipelines and communicating the cold air pipelines with the air inlets through drainage pipelines.
The exhaust mechanism comprises an L-shaped exhaust pipe communicated with the air outlet, the exhaust pipe penetrates out of the side wall of the switch cabinet, and a second heat insulation layer is wrapped in an area, located inside the switch cabinet, of the exhaust pipe. The blast pipe is located the inside partial temperature of cubical switchboard also can be very low, adsorbs the comdenstion water easily and can't fall the comdenstion water clearance, therefore the blast pipe directly passes the lateral wall of cubical switchboard and goes out from cooling plate top, and sets up the second heat preservation and avoid its surface temperature low and adsorb the comdenstion water.
The cooling plate outside sets up comdenstion water adsorption apparatus structure, comdenstion water adsorption apparatus structure includes the diaphragm that cooling plate lower extreme lateral surface set up, set up the arc wall on the diaphragm, set up the strip that absorbs water in the arc wall. The diaphragm is located the lower extreme of cooling plate, and steam can be because gravity stays after condensing on the cooling plate and assembles on the diaphragm, sets up the strip that absorbs water through the arc wall on the diaphragm, and the strip that absorbs water can absorb moisture, avoids moisture to volatilize once more and gets into in the air in the cubical switchboard.
The strip that absorbs water includes the layer that permeates water that absorbs water core and parcel absorb water core, the core that absorbs water adopts water-absorbent resin granule, it adopts the dacron cloth to permeate water the layer. The terylene cloth is adopted because the terylene cloth has good wear resistance and large elasticity, and the water-absorbent resin is prevented from breaking the water-permeable layer after absorbing water and expanding.
The switch cabinet is inboard to correspond the cooling plate sets up the comdenstion water and clears away the mechanism, the comdenstion water is clear away the mechanism and is included the base that sets up on the switch cabinet inside wall, set up the lifter on the base, the lifter upper end sets up the support of L type, the tip level of support set up with the rubber scraping strip of cooling plate contact. Condensate water clearance mechanism can accelerate the condensate water on cooling plate surface and flow to the diaphragm, the preferred electric telescopic handle of lifter, and it cooperates with control mechanism, after starting central air conditioning, opens the lifter and clears away the drop of water according to the frequency once an hour. The rubber scraping strips are located at the uppermost part of the cooling plate, the lifting rods shrink downwards when condensation needs to be removed, and water is scraped from the cooling plate by the rubber scraping strips and is gathered on the transverse plate to be absorbed by the water absorbing strips. After the cleaning is finished, the lifting rod is produced, so that the rubber scraping strip is continuously positioned at the highest position of the cooling plate to wait for the next operation.
The static electricity removing mechanism comprises a mounting frame arranged at the bottom of the switch cabinet, a miniature ion fan is horizontally arranged at the top of the mounting frame, and the temperature rising mechanism is arranged below the miniature ion fan. The miniature ion fan is horizontally arranged and blows air upwards, a large amount of air flow with positive and negative charges can be generated, and the charges on an object can be neutralized. When the surface of the object is charged with negative charges, the object attracts the positive charges in the airflow; when the surface of the object is positively charged, it attracts negative charges in the air flow. When the positive and negative charges are contacted in equal amount, the electrical neutralization can be achieved, so that static electricity in the switch cabinet and charges on parts in the switch cabinet caused by partial discharge can be eliminated.
The temperature rising mechanism comprises an air inlet cylinder arranged below an air inlet of the miniature ion fan, and a heating resistance wire is arranged in the air inlet cylinder. The temperature rise mechanism increases the temperature in the switch cabinet, so that the temperature difference between air and the cooling plate is larger, and the gathering of water vapor on the cooling plate is facilitated. The heating mechanism adopts a heating resistance wire for heating, the heating resistance wire adopts a resistance wire with a smaller volume, the heating resistance wire heats air in the air inlet cylinder, the air heated under the action of the miniature ion fan enters the air inlet and moves upwards, and finally the temperature in the switch cabinet is heated.
The invention can eliminate static electricity in the switch cabinet and neutralize the charge of certain charged parts during partial discharge, and can prevent the damage caused by the static electricity and the partial discharge in the switch cabinet aggravated by condensation in the switch cabinet.
Drawings
FIG. 1 is a schematic structural diagram of an anti-static protection system of a high-voltage switch cabinet according to the present invention;
FIG. 2 is a horizontal cross-sectional view of the condensate removal mechanism of the present invention;
fig. 3 is a schematic structural view of the absorbent strip of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 3 of the embodiments of the present invention. It should be apparent that the described embodiments are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.
The embodiment one, this embodiment provides a high tension switchgear prevents electrostatic protection system, including monitoring mechanism 8, control mechanism 9, the intensification mechanism, the static clearance mechanism that sets up in cubical switchboard 25 and the condensation mechanism of setting at the cubical switchboard 25 inside wall, condensation mechanism includes the refrigeration chamber 19 that sets up on the cubical switchboard 25 inside wall, 19 internal surfaces in refrigeration chamber set up the first heat preservation 12 of one deck, set up cooling plate 6 in the refrigeration chamber 19, the inside cavity of cooling plate 6 sets up mobile chamber 13, cooling plate 6 upper end set up with the gas outlet 11 that flows chamber 13 intercommunication, the lower extreme set up with the air inlet 20 that flows chamber 13 intercommunication, air inlet 20 and refrigeration mechanism intercommunication, gas outlet 11 and exhaust mechanism intercommunication, control mechanism 9 and monitoring mechanism 8, intensification mechanism, static clearance mechanism and refrigeration mechanism signal connection.
The control mechanism 9 adopts a microcontroller, and the monitoring mechanism 8 comprises a temperature and humidity sensor.
The refrigerating mechanism adopts a central air conditioner, and a cold air pipeline 17 of the central air conditioner is communicated with an air inlet 20 through a drainage pipeline 16.
The exhaust mechanism comprises an L-shaped exhaust pipe 7 communicated with the air outlet 11, the exhaust pipe 7 penetrates out of the side wall of the switch cabinet 25, and a second heat-insulating layer 10 is wrapped in an area, located inside the switch cabinet 25, of the exhaust pipe 7.
The second embodiment is different from the first embodiment in that:
6 outsides of cooling plate set up comdenstion water adsorption apparatus and construct, comdenstion water adsorption apparatus constructs including diaphragm 15 that 6 lower extreme lateral surfaces of cooling plate set up, set up arc wall 14 on diaphragm 15, set up the strip 18 that absorbs water in the arc wall 14.
The water absorbing strip 18 comprises a water absorbing core 27 and a permeable layer 26 wrapping the water absorbing core 27, the water absorbing core 27 is made of water absorbing resin particles, and the permeable layer 26 is made of terylene cloth.
The switch cabinet 25 inboard corresponds cooling plate 6 sets up the comdenstion water and clears away the mechanism, the comdenstion water is clear away the base 24 that the mechanism set up on including the switch cabinet 25 inside wall, set up lifter 23 on the base 24, lifter 23 upper end sets up the support 22 of L type, the tip level of support 22 set up with the rubber of cooling plate 6 contact scrapes strip 21.
The third embodiment is different from the first embodiment in that:
the static electricity removing mechanism comprises a mounting rack 5 arranged at the bottom of the switch cabinet 25, a miniature ion fan 1 is horizontally arranged at the top of the mounting rack 5, and the temperature rising mechanism is arranged below the miniature ion fan 1.
The temperature rising mechanism comprises an air inlet cylinder 4 arranged below an air inlet 2 of the miniature ion fan 1, and a heating resistance wire 3 is arranged in the air inlet cylinder 4.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. The utility model provides a high tension switchgear prevents static protection system which characterized in that: the cooling device comprises a monitoring mechanism, a control mechanism, a heating mechanism, an electrostatic eliminating mechanism and a condensing mechanism, wherein the monitoring mechanism, the control mechanism, the heating mechanism, the electrostatic eliminating mechanism and the condensing mechanism are arranged in a switch cabinet, the condensing mechanism comprises a refrigeration cavity arranged on the inner side wall of the switch cabinet, a first heat-insulating layer is arranged on the inner surface of the refrigeration cavity, a cooling plate is arranged in the refrigeration cavity, a flow cavity is arranged in the cooling plate in a hollow mode, an air outlet communicated with the flow cavity is formed in the upper end of the cooling plate, an air inlet communicated with the flow cavity is formed in the lower end of the cooling plate, the air inlet is communicated with the refrigerating mechanism, the air outlet is communicated with an exhaust mechanism, and the control mechanism is in signal connection with the monitoring mechanism, the heating mechanism, the electrostatic eliminating mechanism and the refrigerating mechanism; a condensate water adsorption mechanism is arranged on the outer side of the cooling plate and comprises a transverse plate arranged on the outer side surface of the lower end of the cooling plate, an arc-shaped groove is formed in the transverse plate, and a water absorption strip is arranged in the arc-shaped groove; the switch cabinet is characterized in that the inner side of the switch cabinet corresponds to the cooling plate and is provided with a condensate water removing mechanism, the condensate water removing mechanism comprises a base arranged on the inner side wall of the switch cabinet, a lifting rod is arranged on the base, the upper end of the lifting rod is provided with an L-shaped support, and the end part of the support is horizontally provided with a rubber scraping strip contacted with the cooling plate.
2. The high-voltage switch cabinet antistatic protection system of claim 1, characterized in that: the control mechanism adopts a microcontroller, and the monitoring mechanism comprises a temperature and humidity sensor.
3. The high-voltage switch cabinet antistatic protection system of claim 1, characterized in that: the refrigerating mechanism adopts a central air conditioner, and a cold air pipeline of the central air conditioner is communicated with the air inlet through a drainage pipeline.
4. The high-voltage switch cabinet antistatic protection system of claim 1, characterized in that: the exhaust mechanism comprises an L-shaped exhaust pipe communicated with the air outlet, the exhaust pipe penetrates out of the side wall of the switch cabinet, and a second heat insulation layer is wrapped in an area, located inside the switch cabinet, of the exhaust pipe.
5. The high-voltage switch cabinet antistatic protection system of claim 1, characterized in that: the strip that absorbs water includes the layer that permeates water that absorbs water core and parcel absorb water core, the core that absorbs water adopts water-absorbent resin granule, it adopts the dacron cloth to permeate water the layer.
6. The high-voltage switch cabinet antistatic protection system of claim 1, characterized in that: the static clearing mechanism comprises a mounting frame arranged at the bottom of the switch cabinet, a miniature ion fan is horizontally arranged at the top of the mounting frame, and the warming mechanism is arranged below the miniature ion fan.
7. The high voltage switch cabinet antistatic protection system of claim 6, characterized in that: the temperature raising mechanism comprises an air inlet barrel arranged below an air inlet of the miniature ion fan, and a heating resistance wire is arranged in the air inlet barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811279770.9A CN109193391B (en) | 2018-10-30 | 2018-10-30 | High tension switchgear prevents static protection system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811279770.9A CN109193391B (en) | 2018-10-30 | 2018-10-30 | High tension switchgear prevents static protection system |
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| CN109193391A CN109193391A (en) | 2019-01-11 |
| CN109193391B true CN109193391B (en) | 2023-03-31 |
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| CN201811279770.9A Active CN109193391B (en) | 2018-10-30 | 2018-10-30 | High tension switchgear prevents static protection system |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109888644B (en) * | 2019-02-26 | 2020-11-24 | 北京万润森泰机械有限公司 | Anti-static power distribution cabinet |
| CN111509594A (en) * | 2020-04-23 | 2020-08-07 | 广东电网有限责任公司东莞供电局 | Condensation preventing device and control box |
| CN112713512B (en) * | 2020-12-15 | 2023-04-25 | 中国铁建重工集团股份有限公司 | Dehumidifying device |
| CN112965555A (en) * | 2021-01-29 | 2021-06-15 | 福建丰意电气设备有限公司 | High-voltage board humiture monitoring system |
| CN116231473B (en) * | 2023-05-11 | 2023-07-21 | 泰森电气有限公司 | Switch board with automatic alarm function |
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