CN102566614A - Environment humidity control method for underground transformer station - Google Patents
Environment humidity control method for underground transformer station Download PDFInfo
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- CN102566614A CN102566614A CN2010105916228A CN201010591622A CN102566614A CN 102566614 A CN102566614 A CN 102566614A CN 2010105916228 A CN2010105916228 A CN 2010105916228A CN 201010591622 A CN201010591622 A CN 201010591622A CN 102566614 A CN102566614 A CN 102566614A
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000007613 environmental effect Effects 0.000 claims description 10
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 240000004859 Gamochaeta purpurea Species 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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Abstract
The invention relates to an environment humidity control method for an underground transformer station, which comprises the following steps: 1, dry and low dew point air is poured into the transformer body; and 2, a plurality of dehumidifiers are arranged in GIS (Gas Insulated Switchgear) equipment room in which GIS equipment is arranged. Compared with the prior art, the invention has the advantages as follows: through the application of the simple method provided by the invention, the environment humidity is considerably reduced, the humidity requirement of the equipment is met, and the practical service life of the equipment is prolonged.
Description
Technical field
The present invention relates to a kind of environmental humidity control method, especially relate to a kind of environmental humidity control method of underground substation.
Background technology
With the Expo station is example; As a columnar structured transformer station; Buried degree of depth reaches 35 meters, and in whole electrical construction installation process, different events in operation produce different pollution source; Both caused the harm to workmen's occupational health, also the installation quality to the important electrical equipment of part (as: GIS, transformer etc.) forms harm.Handle fully as yet by buildings itself and underground, cylindrical shell edge breakthrough, add that station internal drainage system normally do not start shipment the humidity that causes the Expo station is humidity increasing successively to B4 layer (33.5 meters) by B1 layer (11.5 meters) trend.In civil engineering finished up just when the electric installation in Expo station began, as a underground station, being most disadvantageous in one of electrical equipment installation environment factor was exactly envionmental humidity.Expo station-26.5 meter B3 layer humidity keeps high level throughout the year, can find out obviously that by the Humidity Detection result of each month each position in storehouse average relative humidity is all the time more than 85% even 90%.Regulation during relevant gas insulated metal enclosed swit chgear construction in " electric power construction, examination and quality test the assessment of bids accurate ": " assembly work should be carried out under less than 80% condition at no dust storm, no sleet, relative air humidity "; In " rules " to transformer carry out core inspection regulation " when relative air humidity less than 75% the time, the device body is exposed to the airborne time and must not surpasses 16h ".
Summary of the invention
The object of the invention is exactly to have reduced ambient humidity significantly provide the simple and method of a kind of method to implement in order to overcome the defective that above-mentioned prior art exists after; Satisfied the requirement of equipment, increased the environmental humidity control method of underground substation of the physical life of equipment humidity.
The object of the invention can be realized through following technical scheme: a kind of environmental humidity control method of underground substation is characterized in that this method may further comprise the steps: 1) in the transformer body, dash and annotate dry low dew point air; 2) in being provided with the GIS canyon of GIS equipment, many dehumidifiers are set.
Described step 1) is specially, and in the transformer body, fills dry low dew point air through dry air generator.
Described step 2) the GIS equipment in is for adopting the combined electric appliance equipment of SF6 gas as insulating medium.
Described step 2) dehumidifier in is the DH-3502B dehumidifier.
Compared with prior art, the inventive method simply and after the method enforcement has reduced ambient humidity significantly, has satisfied the requirement of equipment to humidity, has increased the physical life of equipment.
Embodiment
Below in conjunction with specific embodiment the present invention is elaborated.
Embodiment
A kind of environmental humidity control method of underground substation may further comprise the steps:
It is example that step 1) becomes transformers with the Japanese TOSHIBA self couplings of 500 kilovolts of this installation, and itself appended technological document requires shown in Fig. 2-1, its envionmental humidity of high permission be 80%, exposing total permission time is 24 hours.Also the technical parameter of other each side is claimed simultaneously.
Therefore in view of on-the-spot complex conditions, for installation progress and the installation quality that guarantees transformer, the method that my company uses dry air generator in the transformer body, to fill dry low dew point air ensures the requirement about interior humidity.
Step 2) GIS equipment is to adopt the combined electric appliance equipment of SF6 gas as insulating medium, processing technology, particularly ambient humidity is had clear and definite requirement during on-the-spot the installation.Current Expo station part GIS equipment is installed in underground 3 layers (26.5 meters), and is positioned at the marginal position of cylindrical shell, and body of wall, surface humidity are big, and average daily humidity is at 80%-95%, installs to equipment and brings many unfavorable factors.With 220 kilovolts of inlet wire GIS canyons is example: spatial area is 250m
2, use the preceding ambient humidity of dehumidifier through being everlasting about 90%, on-the-spot through various scheme discuss, compare through the performance of polytypic industry dehumidifier, finally select the high-power dehumidifier of DH-3502B for use.
Effect is remarkable after using high-power industrial dehumidifier, moisture stable has satisfied GIS equipment the control requirement to ambient humidity is installed about 50%-60% behind the 24h, and this model dehumidifier humidity is controlled to be the back automatic constant manually is set.
Claims (4)
1. the environmental humidity control method of a underground substation is characterized in that, this method may further comprise the steps:
1) in the transformer body, dashes the dry low dew point air of notes;
2) in being provided with the GIS canyon of GIS equipment, many dehumidifiers are set.
2. the environmental humidity control method of a kind of underground substation according to claim 1 is characterized in that, described step 1) is specially, and in the transformer body, fills dry low dew point air through dry air generator.
3. the environmental humidity control method of a kind of underground substation according to claim 1 is characterized in that, described step 2) in GIS equipment for adopting the combined electric appliance equipment of SF6 gas as insulating medium.
4. the environmental humidity control method of a kind of underground substation according to claim 1 is characterized in that, described step 2) in dehumidifier be the DH-3502B dehumidifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105916228A CN102566614A (en) | 2010-12-16 | 2010-12-16 | Environment humidity control method for underground transformer station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105916228A CN102566614A (en) | 2010-12-16 | 2010-12-16 | Environment humidity control method for underground transformer station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102566614A true CN102566614A (en) | 2012-07-11 |
Family
ID=46412253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105916228A Pending CN102566614A (en) | 2010-12-16 | 2010-12-16 | Environment humidity control method for underground transformer station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102566614A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1377047A (en) * | 2002-05-09 | 2002-10-30 | 刘有斌 | Gas insulating dry transformer |
| CN2583589Y (en) * | 2002-11-28 | 2003-10-29 | 乔保振 | Dual-purpose vapour-phase dryer for double evaporimeter |
| CN201387793Y (en) * | 2009-04-07 | 2010-01-20 | 湖北省输变电工程公司 | Fully-sealed processing device of transformer oil |
| CN201437070U (en) * | 2009-03-16 | 2010-04-14 | 华北电网有限公司北京超高压公司 | Air drying and heating device |
| CN201601415U (en) * | 2010-01-26 | 2010-10-06 | 葛洲坝集团机电建设有限公司 | Dustproof and damp-proof device for multi-interface mobile GIS equipment |
-
2010
- 2010-12-16 CN CN2010105916228A patent/CN102566614A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1377047A (en) * | 2002-05-09 | 2002-10-30 | 刘有斌 | Gas insulating dry transformer |
| CN2583589Y (en) * | 2002-11-28 | 2003-10-29 | 乔保振 | Dual-purpose vapour-phase dryer for double evaporimeter |
| CN201437070U (en) * | 2009-03-16 | 2010-04-14 | 华北电网有限公司北京超高压公司 | Air drying and heating device |
| CN201387793Y (en) * | 2009-04-07 | 2010-01-20 | 湖北省输变电工程公司 | Fully-sealed processing device of transformer oil |
| CN201601415U (en) * | 2010-01-26 | 2010-10-06 | 葛洲坝集团机电建设有限公司 | Dustproof and damp-proof device for multi-interface mobile GIS equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. SHANGHAI ELECTRIC POWER C Free format text: FORMER OWNER: SHANGHAI JIULONG ELECTRIC SCIENCE + TECHNOLOGY CO., LTD. Effective date: 20130110 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20130110 Address after: 200122 Shanghai City, Pudong New Area source deep road, No. 1122 Applicant after: Shanghai Electric Power Corporation Applicant after: State Grid Corporation of China Applicant after: Shanghai Electric Power Communication Co., Ltd. Address before: 200122 Shanghai City, Pudong New Area source deep road, No. 1122 Applicant before: Shanghai Electric Power Corporation Applicant before: Shanghai Jiulong Electric Power Co., Ltd. |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120711 |