CN104242115A - Ring main unit anti-dew system - Google Patents
Ring main unit anti-dew system Download PDFInfo
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- CN104242115A CN104242115A CN201410542936.7A CN201410542936A CN104242115A CN 104242115 A CN104242115 A CN 104242115A CN 201410542936 A CN201410542936 A CN 201410542936A CN 104242115 A CN104242115 A CN 104242115A
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- main unit
- ring main
- air
- dew point
- humidity
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Abstract
The invention relates to a ring main unit anti-dew system. The ring main unit anti-dew system comprises a semiconductor dew point dehumidifier and a ventilation and dehumidification device, the two of which are arranged in the space where a ring main unit is located; the ventilation and dehumidification device comprises an air duct formed between the closed bottom of the ring main unit and a cable inspection well, a fan arranged in the air duct, a controller for controlling the fan and a humidity measurement sensor for detecting the humidity in the air duct; the humidity measurement sensor is connected with the controller. The ring main unit anti-dew system is capable of effectively preventing the dewing phenomenon in the ring main unit and guaranteeing safe operation of electrical components in the ring main unit by virtue of the matching of the semiconductor dew point dehumidifier and the ventilation and dehumidification device.
Description
Technical field
The present invention relates to a kind of for preventing the anti-condensation system condensed in ring main unit.
Background technology
Novel high-pressure ring main unit inner space is very compact, for ensureing that it is at high humidity local insulation level, ensures its reliably working, has higher requirement to moistureproof, anti-condensation in cabinet.
Electric component makes moist, and can have problems and comprise:
1, electric equipment gets rusty, and is directed at rotating part malfunctioning when execution work;
2, after electric equipment seriously makes moist, easily cause the decline that electrically punctures or insulate, produce potential safety hazard;
3, electric equipment seriously makes moist for a long time, can make the electrical connection place loose contact of equipment, and equipment tripping or disorderly dynamic occurs when performing electric drive.
Therefore, solving high-voltage ring main unit condensation problem, is ensure that electric component equipment normally runs necessary condition.
China adopts Automatic-heating dehumidifying controller to prevent condensation from having more than ten years history in switch cubicle, this heating and dehumidification controller serves positive role at moisture resistant, anti-condensation guarantee high-tension apparatus reliability service, but has also occurred some problems in the area application had.Such as: at southern plum rain season, sometimes the air humidity of inside switch cabinet is higher, the even existing dew condensation phenomenon in local in switch cubicle, because the condensation sensing station being arranged on cabinet inside does not arrive the degree of condensation, or condensation transducer is for a long time by dust in air and gas pickling, the sensitivity of transducer is affected, condensation controller can not start heater in time, the effect causing condensation to control is malfunctioning, equipment can not normally run, and brings threat to the safe operation of switchgear.
Summary of the invention
The object of this invention is to provide one and be applicable to the anti-condensation and good anti-condensation system of effect of ring main unit.
For achieving the above object, the technical solution used in the present invention is:
The anti-condensation system of a kind of ring main unit, comprises the semiconductor dew point dehumidifier in the space of the ring main unit be arranged at described in placement and ventilation drying device; Described ventilation drying device be included in the air channel formed between the bottom closed of described ring main unit and cable manhole, the fan be arranged in described air channel, control described in the controller of fan and the humidity measuring transducer of the air channel humidity described in detecting, described humidity measuring transducer is connected with described controller.
Preferably, described air channel has relative air inlet and air outlet, and described air inlet is provided with air feed shutter, and described air outlet is provided with air-out blinds.
Preferably, the fan described in is respectively arranged with in described air inlet and in described air outlet.
Preferably, the bottom of described ring main unit is provided with channel-section steel bracket and is maked somebody a mere figurehead and and form described air channel between described cable manhole.
Preferably, described semiconductor dew point dehumidifier is for multiple and be distributed in the space of the ring main unit described in placement.
Preferably, the semiconductor dew point dehumidifier described in each is all connected with the same control system be arranged in control cabinet.
Because technique scheme is used, the present invention compared with prior art has following advantages: the present invention passes through the cooperation of semiconductor dew point dehumidifier and ventilation drying device, effectively can prevent from occurring dew condensation phenomenon in ring main unit, thus ensure the safe operation of electric elements in ring main unit.
Accompanying drawing explanation
Accompanying drawing 1 is the schematic diagram of the anti-condensation system of ring main unit of the present invention.
In above accompanying drawing: 1, ring main unit; 2, semiconductor dew point dehumidifier; 3, control cabinet; 4, air channel; 5, fan; 6, channel-section steel bracket; 7, cable manhole; 8, air feed shutter; 9, air-out blinds; 10, air inlet; 11, air outlet; 12, cable.
Embodiment
Below in conjunction with embodiment shown in the drawings, the invention will be further described.
Embodiment one: as shown in Figure 1, owing to being connected with inspection shaft bottom ring main unit 1, moisture vapor in inspection shaft easily enters ring main unit 1 through gap inner, thus easily cause condensation when temperature acute variation, so the anti-condensation system of this ring main unit, adopt the scheme that semiconductor dew point dehumidifier 2 and ventilation drying device two parts combine.Semiconductor dew point dehumidifier 2 is arranged in the space of placement ring main unit 1, in this space, can uniform multiple semiconductor dew point dehumidifier 2, each semiconductor dew point dehumidifier 2 can be connected with the same control system be arranged in control cabinet 3, thus realizes unified control.
Ventilation drying device is included in the air channel 4 formed between the bottom closed of ring main unit 1 and the cable manhole 7 arranging cable 12, the fan 5 be arranged in air channel 4, controls controller that fan 5 operates and the humidity that detects in air channel 4 and the humidity measuring transducer connected with signal with controller.Concrete, the bottom of the sealing of ring main unit 1 is provided with channel-section steel bracket 6 and is maked somebody a mere figurehead, thus between itself and cable manhole 7, has certain distance and form air channel 4.Air channel 4 has relative air inlet 10 and air outlet 11, and air inlet 10 is provided with air feed shutter 8, and air outlet 11 is provided with air-out blinds 9, and is respectively arranged with a desk fan 5 in air inlet 10 and in air outlet 11.
The above-mentioned control system of semiconductor dew point dehumidifier 2 and the controller of ventilation drying device can be integrated into same control device and be positioned in control cabinet 3.
The anti-condensation system of above-mentioned ring main unit, opens fan 5 when the humidity measuring transducer arranged detects air channel 4 humidity comparatively large (if humidity is higher than 50%) and carry out exhausting in air channel 4; When humidity lower (if humidity is lower than 40%), stop exhausting, thus prevent from wet gas being gone here and there in ring main unit 1 in inspection shaft, ensure that moisture vapor can not enter ring main unit 1 inner.In the space arranging ring main unit 1, arrange semiconductor dew point dehumidifier 2 dehumidify, when ring main unit 1 space humidity comparatively large (if humidity is higher than 50%), open dehumidifying, when humidity lower (if humidity is lower than 40%), stop dehumidifying, to ensure that ring main unit 1 interior humidity is stabilized between 40% to 50%.
Above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (6)
1. the anti-condensation system of ring main unit, is characterized in that: it comprises semiconductor dew point dehumidifier in the space of the ring main unit be arranged at described in placement and ventilation drying device; Described ventilation drying device be included in the air channel formed between the bottom closed of described ring main unit and cable manhole, the fan be arranged in described air channel, control described in the controller of fan and the humidity measuring transducer of the air channel humidity described in detecting, described humidity measuring transducer is connected with described controller.
2. the anti-condensation system of ring main unit according to claim 1, it is characterized in that: described air channel has relative air inlet and air outlet, described air inlet is provided with air feed shutter, and described air outlet is provided with air-out blinds.
3. the anti-condensation system of ring main unit according to claim 2, is characterized in that: be respectively arranged with the fan described in described air inlet and in described air outlet.
4. the anti-condensation system of ring main unit according to claim 1, is characterized in that: the bottom of described ring main unit is provided with channel-section steel bracket and is maked somebody a mere figurehead and and form described air channel between described cable manhole.
5. the anti-condensation system of ring main unit according to claim 1, is characterized in that: described semiconductor dew point dehumidifier is for multiple and be distributed in the space of the ring main unit described in placement.
6. the anti-condensation system of ring main unit according to claim 5, is characterized in that: the semiconductor dew point dehumidifier described in each is all connected with the same control system be arranged in control cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410542936.7A CN104242115B (en) | 2014-10-15 | 2014-10-15 | Ring main unit anti-dew system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410542936.7A CN104242115B (en) | 2014-10-15 | 2014-10-15 | Ring main unit anti-dew system |
Publications (2)
| Publication Number | Publication Date |
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| CN104242115A true CN104242115A (en) | 2014-12-24 |
| CN104242115B CN104242115B (en) | 2017-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410542936.7A Active CN104242115B (en) | 2014-10-15 | 2014-10-15 | Ring main unit anti-dew system |
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| CN (1) | CN104242115B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105509818A (en) * | 2016-02-01 | 2016-04-20 | 江苏省电力公司检修分公司 | High-voltage cabinet dew point detection system and method thereof |
| CN106647846A (en) * | 2017-01-13 | 2017-05-10 | 浙江都美电力科技有限公司 | Anti-condensation ring main unit and ant-condensation method |
| CN107346869A (en) * | 2017-07-31 | 2017-11-14 | 江苏银佳企业集团有限公司 | A kind of high pressure armored withdraw type switch cubicle cabling channel |
| CN109542151A (en) * | 2018-12-18 | 2019-03-29 | 中国电子科技集团公司第十六研究所 | A kind of ring control equipment and control method |
| CN109612011A (en) * | 2018-12-10 | 2019-04-12 | 广东美的制冷设备有限公司 | Control method, device and the fresh air system of fresh air system |
| CN109612010A (en) * | 2018-12-10 | 2019-04-12 | 广东美的制冷设备有限公司 | Control method, device and the fresh air system of fresh air system |
| CN110793571A (en) * | 2019-10-22 | 2020-02-14 | 云南恒协科技有限公司 | Ring main unit online monitoring system |
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| CN203166356U (en) * | 2013-04-11 | 2013-08-28 | 辽宁安煤电力设备制造（集团）有限公司 | Low-voltage power distribution cabinet with radiating air duct |
| CN203423375U (en) * | 2013-09-17 | 2014-02-05 | 国家电网公司 | Ring main unit dehumidifying apparatus |
| CN203690750U (en) * | 2014-01-07 | 2014-07-02 | 国家电网公司 | Electric power system field cabinet body condensation-resisting apparatus |
| CN203850668U (en) * | 2014-04-24 | 2014-09-24 | 常州市盈能电气有限公司 | Top cover of box body of combined-type transformer |
| CN204130956U (en) * | 2014-10-15 | 2015-01-28 | 国家电网公司 | The anti-condensation system of ring main unit |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201892867U (en) * | 2010-11-26 | 2011-07-06 | 李颖 | Intelligent air exchange control system for communication base station |
| CN203166356U (en) * | 2013-04-11 | 2013-08-28 | 辽宁安煤电力设备制造（集团）有限公司 | Low-voltage power distribution cabinet with radiating air duct |
| CN203423375U (en) * | 2013-09-17 | 2014-02-05 | 国家电网公司 | Ring main unit dehumidifying apparatus |
| CN203690750U (en) * | 2014-01-07 | 2014-07-02 | 国家电网公司 | Electric power system field cabinet body condensation-resisting apparatus |
| CN203850668U (en) * | 2014-04-24 | 2014-09-24 | 常州市盈能电气有限公司 | Top cover of box body of combined-type transformer |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105509818A (en) * | 2016-02-01 | 2016-04-20 | 江苏省电力公司检修分公司 | High-voltage cabinet dew point detection system and method thereof |
| CN106647846A (en) * | 2017-01-13 | 2017-05-10 | 浙江都美电力科技有限公司 | Anti-condensation ring main unit and ant-condensation method |
| CN107346869A (en) * | 2017-07-31 | 2017-11-14 | 江苏银佳企业集团有限公司 | A kind of high pressure armored withdraw type switch cubicle cabling channel |
| CN107346869B (en) * | 2017-07-31 | 2023-04-11 | 江苏银佳企业集团有限公司 | High-voltage armored movable-type switch cabinet wiring groove |
| CN109612011A (en) * | 2018-12-10 | 2019-04-12 | 广东美的制冷设备有限公司 | Control method, device and the fresh air system of fresh air system |
| CN109612010A (en) * | 2018-12-10 | 2019-04-12 | 广东美的制冷设备有限公司 | Control method, device and the fresh air system of fresh air system |
| CN109612011B (en) * | 2018-12-10 | 2021-06-18 | 广东美的制冷设备有限公司 | Control method and device of fresh air system and fresh air system |
| CN109542151A (en) * | 2018-12-18 | 2019-03-29 | 中国电子科技集团公司第十六研究所 | A kind of ring control equipment and control method |
| CN110793571A (en) * | 2019-10-22 | 2020-02-14 | 云南恒协科技有限公司 | Ring main unit online monitoring system |
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| CN104242115B (en) | 2017-04-19 |
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