CN203928605U - The dry air extractor of a kind of SF6 electrical equipment air chamber test port pressure-fired - Google Patents
The dry air extractor of a kind of SF6 electrical equipment air chamber test port pressure-fired Download PDFInfo
- Publication number
- CN203928605U CN203928605U CN201420294608.5U CN201420294608U CN203928605U CN 203928605 U CN203928605 U CN 203928605U CN 201420294608 U CN201420294608 U CN 201420294608U CN 203928605 U CN203928605 U CN 203928605U
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- CN
- China
- Prior art keywords
- pipeline
- fired
- pressure
- electrical equipment
- test port
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 17
- 229910018503 SF6 Inorganic materials 0.000 claims abstract description 29
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 claims abstract description 29
- 229960000909 sulfur hexafluoride Drugs 0.000 claims abstract description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000000741 silica gel Substances 0.000 claims abstract description 4
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000000740 bleeding effect Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 239000012491 analyte Substances 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 231100000167 toxic agent Toxicity 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Landscapes
- Drying Of Gases (AREA)
Abstract
The utility model relates to the dry air extractor of a kind of SF6 electrical equipment air chamber test port pressure-fired, comprise device box, top in device box is mounted with and is slightly less than 1.3 atmospheric pressure-fired air extractors, bottom in device box is mounted with blower fan, described pressure-fired air extractor is drawn two-way by pipeline, one road pipeline is connected with adapter after via Micropressure safety valve and negtive micropressure switch valve, another road pipeline is connected with exhaust-valve after the pipeline of silica gel is housed, described blower and pipeline is successively via blower fan pressure-reducing valve, after fan switch valve and safety valve for fan, be connected with adapter, described adapter is connected with sulfur hexafluoride electrical equipment via density monitor by pipeline.The utility model can carry out air chamber test port and be dried, bleeds, and removes moisture in test port, eliminates the measure error that exists moisture to bring due to test port.
Description
Technical field
The utility model belongs to sulfur hexafluoride electrical equipment moisture measurement technical field, and especially a kind of SF6 electrical equipment air chamber test port pressure-fired is dried air extractor.
Background technology
Sulfur hexafluoride gas-insulating switch is widely applied with its good performance.When the moisture of sulfur hexafluoride electrical equipment acquires a certain degree, not only can react with the gas analyte under arcing and generate toxicant and continue and cause the chemical attack of equipment, and can make the decline of solid insulation level cause insulation flashover, have a strong impact on electric property, mechanical performance and the break performance of equipment, cause many serious consequences.Thereby sulfur hexafluoride gas is implemented to strict quality surveillance and safety management is the important guarantee of guaranteeing equipment reliability service and health of human body safety.Pilot project and the cycle of professional standard DL/T596-1996 " power equipment preventive trial code " to operating sulfur hexafluoride gas proposed strict requirement, specific standards with to ask for an interview to table 1.
Water content detection, cycle and the requirement of table 1 SF6 gas in service
Humidity is the important project in sulfur hexafluoride gas test, is mainly very large to the harm of equipment generation because of moisture wide material sources in sulfur hexafluoride electrical equipment and moisture.Moisture in sulfur hexafluoride electrical equipment gas is mainly derived from the following aspects: intrinsic residual moisture in the new gas of (1) SF6.This is due to the cause that can not definitely discharge moisture in production technology.(2) sulfur hexafluoride electrical equipment manufacture in transport, installation, maintenance process all may contact wetting and moisture is immersed in to each original paper of equipment in go, comprise that parts in air chamber are failed bone dry before installation good; When installing or overhauling, ambient humidity is excessive; In air chamber vacuum do not reach gas that requirement makes to contain moisture be able to residual, adhesive water on wall simultaneously; Air chamber sealing imprecision; (3) although take drying step, the moisture of 0.1%-0.5% weight ratio is still contained in the organic insulation inside of sulfur hexafluoride electrical equipment, in equipment running process, can outwards discharge lentamente.(4) adsorbent is brought moisture into.(5) will raise as sulfur hexafluoride gas water content after operation a period of time of dielectric.Moisture in evidence gas increases along with the rising of environment temperature.(6) see through the moisture that seal infiltrates.
While finding sulfur hexafluoride electrical equipment in field experiment, find humidity over limit, once find air chamber Moisture high UCL, conventional treatment way: repeated measurement or adopt other instruments to monitor, in actual process, find sulfur hexafluoride electrical equipment Moisture high UCL, all often that air chamber test port makes moist and causes humidity measurement to exceed standard, the measure error of bringing.
Summary of the invention
The purpose of this utility model is in order to overcome the deficiencies in the prior art, provides a kind of SF6 electrical equipment air chamber test port pressure-fired to be dried air extractor.
The utility model solves its technical problem and takes following technical scheme to realize:
The dry air extractor of a kind of SF6 electrical equipment air chamber test port pressure-fired, comprise device box, top in device box is mounted with and is slightly less than 1.3 atmospheric pressure-fired air extractors, bottom in device box is mounted with blower fan, described pressure-fired air extractor is drawn two-way by pipeline, one road pipeline is connected with adapter after via Micropressure safety valve and negtive micropressure switch valve, another road pipeline is connected with exhaust-valve after the pipeline of silica gel is housed, described blower and pipeline is successively via blower fan pressure-reducing valve, after fan switch valve and safety valve for fan, be connected with adapter, described adapter is connected with sulfur hexafluoride electrical equipment via density monitor by pipeline.
And, on the pipeline between described blower fan and adapter, Pressure gauge is installed.
Advantage of the present utility model and good effect are:
1, the utility model can carry out air chamber test port and is dried, bleeds, and moisture in air chamber mouth is removed.Eliminate due to the test port moisture measure error of bringing on the high side.
2, the utility model adopts multichannel design, and air chamber moisture is by a road pressure-fired air extractor, and a road pressure-fired adds drying system, meets under different condition and switches and remove moisture.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is implemented to be further described, following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.
The dry air extractor of a kind of SF6 electrical equipment air chamber test port pressure-fired, as shown in Figure 1, comprise device box 1, top in device box is mounted with and is slightly less than 1.3 atmospheric pressure-fired air extractors 2, bottom in device box is mounted with blower fan 3, described pressure-fired air extractor is drawn two-way by pipeline, one road pipeline is connected with adapter 8 afterwards via Micropressure safety valve 4 and negtive micropressure switch valve 6, another road pipeline is connected with exhaust-valve 7 via the pipeline 5 that silica gel is housed is rear, described blower and pipeline is successively via blower fan pressure-reducing valve 14, after fan switch valve 13 and safety valve for fan 12, be connected with adapter, described adapter is connected with sulfur hexafluoride electrical equipment 10 via density monitor 9 by pipeline.
In concrete enforcement of the present utility model, the pressure of Pressure gauge 11 in order to real-time monitoring Fan pipeline is installed on the pipeline between described blower fan and adapter.
Operation principle
Once find that sulfur hexafluoride electrical equipment moisture measurement exceeds standard, use this equipment to process sulfur hexafluoride electrical equipment, have two passages: by adapter, pressure-fired air extractor is connected, start afterwards pressure-fired air extractor (being slightly less than 1.3 atmospheric pressure) and open, other valves are in closed condition, the 3-5 minute that bleeds, switches, and closes negtive micropressure switch valve, open adapter, bleed dry, 3-5min, removes moisture.
By adapter, blower fan is connected with electrical equipment, opens safety valve for fan, note observing Pressure gauge while bleeding, pressure is difficult for being greater than 1.3 atmospheric pressure, and protection air chamber test port, purges bleeding.
Claims (2)
1. the dry air extractor of SF6 electrical equipment air chamber test port pressure-fired, it is characterized in that: comprise device box, top in device box is mounted with and is slightly less than 1.3 atmospheric pressure-fired air extractors, bottom in device box is mounted with blower fan, described pressure-fired air extractor is drawn two-way by pipeline, one road pipeline is connected with adapter after via Micropressure safety valve and negtive micropressure switch valve, another road pipeline is connected with exhaust-valve after the pipeline of silica gel is housed, described blower and pipeline is successively via blower fan pressure-reducing valve, after fan switch valve and safety valve for fan, be connected with adapter, described adapter is connected with sulfur hexafluoride electrical equipment via density monitor by pipeline.
2. the dry air extractor of SF6 electrical equipment air chamber test port pressure-fired according to claim 1, is characterized in that: on the pipeline between described blower fan and adapter, Pressure gauge is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420294608.5U CN203928605U (en) | 2014-06-05 | 2014-06-05 | The dry air extractor of a kind of SF6 electrical equipment air chamber test port pressure-fired |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420294608.5U CN203928605U (en) | 2014-06-05 | 2014-06-05 | The dry air extractor of a kind of SF6 electrical equipment air chamber test port pressure-fired |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203928605U true CN203928605U (en) | 2014-11-05 |
Family
ID=51824407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420294608.5U Expired - Lifetime CN203928605U (en) | 2014-06-05 | 2014-06-05 | The dry air extractor of a kind of SF6 electrical equipment air chamber test port pressure-fired |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203928605U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016165996A1 (en) * | 2015-04-15 | 2016-10-20 | Rwe Deutschland Ag | Method for drying a gas chamber and arrangement comprising a protective-gas filled chamber |
-
2014
- 2014-06-05 CN CN201420294608.5U patent/CN203928605U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016165996A1 (en) * | 2015-04-15 | 2016-10-20 | Rwe Deutschland Ag | Method for drying a gas chamber and arrangement comprising a protective-gas filled chamber |
| CN107683519A (en) * | 2015-04-15 | 2018-02-09 | 威咖亚力山大威甘德公司 | The device of the drying means of gas compartment and the gas compartment including being filled with protective gas |
| EP3283833B1 (en) | 2015-04-15 | 2019-03-13 | innogy Netze Deutschland GmbH | Method for drying a gas chamber and arrangement comprising a protective-gas filled chamber |
| US10352618B2 (en) | 2015-04-15 | 2019-07-16 | WIKA Alexander Weigand SE & Co. KG | Method for drying a gas chamber and arrangement comprising a protective gas-filled chamber |
| CN107683519B (en) * | 2015-04-15 | 2019-07-26 | 威咖亚力山大威甘德公司 | The device of the drying means of gas compartment and the gas compartment including being filled with protective gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 300010 Tianjin city Hebei District Wujing Road No. 39 Patentee after: State Grid Corporation of China Patentee after: STATE GRID TIANJIN ELECTRIC POWER Co. Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee before: State Grid Corporation of China Patentee before: STATE GRID TIANJIN ELECTRIC POWER Co. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141105 |