CN107240880A - The online blocking method of SF 6 high-voltage combined electrical apparatus - Google Patents
The online blocking method of SF 6 high-voltage combined electrical apparatus Download PDFInfo
- Publication number
- CN107240880A CN107240880A CN201710657843.2A CN201710657843A CN107240880A CN 107240880 A CN107240880 A CN 107240880A CN 201710657843 A CN201710657843 A CN 201710657843A CN 107240880 A CN107240880 A CN 107240880A
- Authority
- CN
- China
- Prior art keywords
- air leakage
- leakage point
- electrical apparatus
- combined electrical
- voltage combined
- 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.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/12—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing elastic covers or coatings, e.g. soapy water
Abstract
The invention discloses a kind of online blocking method of SF 6 high-voltage combined electrical apparatus, being related to power system service technique field, there is provided a kind of online blocking method of SF 6 high-voltage combined electrical apparatus that can accurately detect air leakage point and effectively handle.This method includes the following steps carried out successively：A, using sulfur hexafluoride leak detector to detecting, obtain the approximate range of air leakage point；B, in the range of the step A obtained air leakage point gas injection leak-checking agent in equipment；The position for having bubble to produce is air leakage point；C, to the progress of air leakage point near zone processing make the region clean and smooth；D, the suitable pressure sealing material of selection, pressure sealing material is fabricated to and leakage stopping block；E, leakage stopping block combined with air leakage point region, block air leakage point；F, processing leakage stopping block and neighbouring equipment surface, make its smooth.G, detection plugging effect.Present invention can apply in the maintenance of SF 6 high-voltage combined electrical apparatus.
Description
Technical field
The present invention relates to power system service technique field, especially design a kind of SF 6 high-voltage combined electrical apparatus and block up online
Leakage method.
Background technology
In electric power system, due to the high-strength insulating properties of sulfur hexafluoride and good electric arc extinction performance, sulfur hexafluoride
High-voltage combined electrical apparatus technology over 30 years, is having been carried out production domesticization after introduction, be widely used in large-scale power system.
At present, domestic electrical system continues to increase to sulfur hexafluoride combined electric appliance usage amount, is used as oil-break and vacuum circuit breaker
Substitute products.It is lithium because itself manufacture craft has been short of or other reasonses during sulfur fluoride high-voltage combined electrical apparatus use
Sulphur gas leak phenomenon is relatively conventional.Sulfur hexafluoride gas is the major insulation medium of electrical equipment, once sew, in the case of insufficient pressure absolutely
Edge performance volume declines therewith, the serious consequence that can finally cause electric switch locking and supply of electric power to be interrupted, therefore sulfur hexafluoride
Gas leakage be to one of power system reliable power supply restriction and threaten.Detect that universal means are to combined electrical apparatus gas leakage now
Using sulfur hexafluoride leak detector, but the method can not be accurately positioned air leakage point, and electric mounting is at outdoor, because air flow is former
Cause, further increases the difficulty of leak detection.
The content of the invention
The technical problem to be solved in the present invention is：A kind of hexafluoro that can accurately detect air leakage point and effectively handle is provided
Change the online blocking method of sulphur high-voltage combined electrical apparatus.
Technical scheme for the use that solves the above problems is：The online blocking method of SF 6 high-voltage combined electrical apparatus include according to
The following steps of secondary progress：
A, staff wear insulating boot, wear insulating glove, and electricity is combined to SF 6 high-voltage using sulfur hexafluoride leak detector
Device is detected, obtains the approximate range of air leakage point；
B, gas leak detection agent is ejected on SF 6 high-voltage combined electrical apparatus, spray regime is step A obtained leakage
Gas point range；The position for having bubble to produce is air leakage point；
C, the metal structure according to air leakage point, the polishing carried out to air leakage point near zone, scraping, derusting or cleaning, make
The region clean and smooth；
D, suitable pressure sealing material chosen according to air leakage point metalline, leakage stopping block is made in pressure sealing material,
The block-shaped size of closing of leak stopping is adapted to the form and dimension of air leakage point；
E, the structure according to air leakage point, make leakage stopping block and air leakage point region reliably tie using means such as anchor ear, free-hand external pressures
Close, block air leakage point；
F, one minute post processing leakage stopping block and neighbouring SF 6 high-voltage combined electrical apparatus surface, make its smooth.
G, detection plugging effect, leak stopping is completed if no longer gas leakage；If still having gas leakage repeat step D to F until
No longer gas leakage.
The beneficial effects of the invention are as follows：(1) it can accurately detect air leakage point and effectively handle, it is ensured that SF 6 high-voltage
Combined electrical apparatus is normally run, and saves the expensive cost of overhaul, while reducing the air pollution that sulfur hexafluoride gas leakage is caused.
(2) it can be hunted leak and be handled in the case where not having a power failure in High-Voltage Electrical Appliances, it is to avoid the large area produced by maintenance
Have a power failure.
(3) plugging effect was not in gas leak phenomenon at least 1 year persistently.
(4) after the completion of leak stopping, equipment surface does not have obvious leak stopping trace, does not influence equipment attractive in appearance.
Embodiment
With reference to embodiment, the present invention is further described.
It is online in order to provide a kind of SF 6 high-voltage combined electrical apparatus that can accurately detect air leakage point and effectively handle
Blocking method.The online blocking method of SF 6 high-voltage combined electrical apparatus includes the following steps carried out successively：A, staff wear
Insulating boot, insulating glove is worn, SF 6 high-voltage combined electrical apparatus is detected using sulfur hexafluoride leak detector, air leakage point is obtained
Approximate range；B, gas leak detection agent is ejected on SF 6 high-voltage combined electrical apparatus, spray regime obtains for step A's
Gas leakage point range；The position for having bubble to produce is air leakage point；C, the metal structure according to air leakage point, enter to air leakage point near zone
Capable polishing, scraping, derusting or cleaning, makes the region clean and smooth；D, suitable band chosen according to air leakage point metalline
Loss circulation material is pressed, leakage stopping block is made in pressure sealing material, the block-shaped size of closing of leak stopping is adapted to the form and dimension of air leakage point；
E, the structure according to air leakage point, make leakage stopping block and air leakage point region reliable connection, closure leakage using means such as anchor ear, free-hand external pressures
Gas point；F, one minute post processing leakage stopping block and neighbouring SF 6 high-voltage combined electrical apparatus surface, make its smooth.G, detection
Plugging effect, leak stopping is completed if no longer gas leakage；The repeat step D to F if still having gas leakage is until no longer gas leakage.
Wherein, pressure sealing material can be aluminium glue rod or aluminium glue mud.
Claims (1)
1. the online blocking method of SF 6 high-voltage combined electrical apparatus, it is characterised in that：Including the following steps carried out successively：
A, staff wear insulating boot, wear insulating glove, and SF 6 high-voltage combined electrical apparatus is entered using sulfur hexafluoride leak detector
Row detection, obtains the approximate range of air leakage point；
B, gas leak detection agent is ejected on SF 6 high-voltage combined electrical apparatus, spray regime is step A obtained air leakage point
Scope；The position for having bubble to produce is air leakage point；
C, the metal structure according to air leakage point, the polishing carried out to air leakage point near zone, scraping, derusting or cleaning, Shi Gai areas
Clean and smooth in domain；
D, suitable pressure sealing material chosen according to air leakage point metalline, leakage stopping block, leak stopping is made in pressure sealing material
Block-shaped conjunction size is adapted to the form and dimension of air leakage point；
E, the structure according to air leakage point, make leakage stopping block and air leakage point region reliable connection using means such as anchor ear, free-hand external pressures, envelope
Stifled air leakage point；
F, one minute post processing leakage stopping block and neighbouring SF 6 high-voltage combined electrical apparatus surface, make its smooth.
G, detection plugging effect, leak stopping is completed if no longer gas leakage；The repeat step D to F if still having gas leakage is until no longer
Gas leakage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710657843.2A CN107240880A (en) | 2017-08-03 | 2017-08-03 | The online blocking method of SF 6 high-voltage combined electrical apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710657843.2A CN107240880A (en) | 2017-08-03 | 2017-08-03 | The online blocking method of SF 6 high-voltage combined electrical apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107240880A true CN107240880A (en) | 2017-10-10 |
Family
ID=59989090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710657843.2A Pending CN107240880A (en) | 2017-08-03 | 2017-08-03 | The online blocking method of SF 6 high-voltage combined electrical apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107240880A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102024609A (en) * | 2009-09-18 | 2011-04-20 | 杭州市电力局 | Method and device for blocking leakage of sulfur hexafluoride |
| CN102496864A (en) * | 2011-11-15 | 2012-06-13 | 山西太钢不锈钢股份有限公司 | Method for eliminating gas leakage of gas-insulated metal-enclosed switch |
| CN102518908A (en) * | 2011-11-02 | 2012-06-27 | 辽宁省电力有限公司葫芦岛供电公司 | SF6 leakage plugging method of GIS (Gas Insulated Switchgear) |
| CN103606832A (en) * | 2013-12-01 | 2014-02-26 | 国网河南省电力公司安阳供电公司 | On-spot leakage detection and blocking technique of whole-sealing combination electric appliance |
| CN106532532A (en) * | 2016-12-15 | 2017-03-22 | 国网山东省电力公司电力科学研究院 | Air-leakage electrified under-pressure plugging method for gas-insulated switchgear |
-
2017
- 2017-08-03 CN CN201710657843.2A patent/CN107240880A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102024609A (en) * | 2009-09-18 | 2011-04-20 | 杭州市电力局 | Method and device for blocking leakage of sulfur hexafluoride |
| CN102518908A (en) * | 2011-11-02 | 2012-06-27 | 辽宁省电力有限公司葫芦岛供电公司 | SF6 leakage plugging method of GIS (Gas Insulated Switchgear) |
| CN102496864A (en) * | 2011-11-15 | 2012-06-13 | 山西太钢不锈钢股份有限公司 | Method for eliminating gas leakage of gas-insulated metal-enclosed switch |
| CN103606832A (en) * | 2013-12-01 | 2014-02-26 | 国网河南省电力公司安阳供电公司 | On-spot leakage detection and blocking technique of whole-sealing combination electric appliance |
| CN106532532A (en) * | 2016-12-15 | 2017-03-22 | 国网山东省电力公司电力科学研究院 | Air-leakage electrified under-pressure plugging method for gas-insulated switchgear |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171010 |
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| RJ01 | Rejection of invention patent application after publication |