CN108499983B - Rapid treatment method for pollution flashover caused by high-voltage switch cabinet body material - Google Patents
Rapid treatment method for pollution flashover caused by high-voltage switch cabinet body material Download PDFInfo
- Publication number
- CN108499983B CN108499983B CN201810240989.1A CN201810240989A CN108499983B CN 108499983 B CN108499983 B CN 108499983B CN 201810240989 A CN201810240989 A CN 201810240989A CN 108499983 B CN108499983 B CN 108499983B
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- China
- Prior art keywords
- voltage
- voltage insulating
- copper bar
- bar sleeve
- vacuum switch
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- 239000000463 material Substances 0.000 title claims abstract description 9
- 238000000034 method Methods 0.000 title abstract description 11
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 claims abstract description 38
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910052802 copper Inorganic materials 0.000 claims abstract description 27
- 239000010949 copper Substances 0.000 claims abstract description 27
- 239000012212 insulator Substances 0.000 claims abstract description 27
- 239000003822 epoxy resin Substances 0.000 claims abstract description 21
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 21
- 239000007921 spray Substances 0.000 claims abstract description 16
- 239000001273 butane Substances 0.000 claims abstract description 11
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 claims abstract description 11
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000003672 processing method Methods 0.000 claims abstract description 6
- 238000009413 insulation Methods 0.000 abstract description 8
- 238000013461 design Methods 0.000 description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 5
- 238000012360 testing method Methods 0.000 description 4
- 238000007791 dehumidification Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 238000009835 boiling Methods 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000013590 bulk material Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000012745 toughening agent Substances 0.000 description 1
- 238000003809 water extraction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/0064—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by temperature changes
- B08B7/0071—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by temperature changes by heating
- B08B7/0085—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by temperature changes by heating by pyrolysis
Landscapes
- Insulators (AREA)
- Insulating Of Coils (AREA)
Abstract
The invention relates to a rapid processing method for removing dibutyl phthalate on the surfaces of epoxy resin shells of a high-voltage switch cabinet body material, such as a mutual inductor, a high-voltage insulating copper bar sleeve, a high-voltage insulating column, a vacuum switch insulator and the like, to cause pollution flashover. And burning the dibutyl phthalate on the surfaces of epoxy resin shells such as the mutual inductor, the high-voltage insulating copper bar sleeve, the high-voltage insulating column, the vacuum switch insulator and the like by adopting flame sprayed by a butane spray gun. The advantages are that: the dibutyl phthalate on the surfaces of epoxy resin shells such as a mutual inductor, a high-voltage insulating copper bar sleeve, a high-voltage insulating column and a vacuum switch insulator is burnt out by using a butane spray gun, so that the method is quick, effective and low in cost, ensures the insulation reliability of a high-voltage line after treatment, and realizes safe and reliable power-on operation again.
Description
Technical Field
The invention relates to a rapid processing method for removing dibutyl phthalate on the surfaces of epoxy resin shells of a high-voltage switch cabinet body material, such as a mutual inductor, a high-voltage insulating copper bar sleeve, a high-voltage insulating column, a vacuum switch insulator and the like, to cause pollution flashover.
Background
At present, accidents caused by high-voltage breakdown and short circuit of a switch cabinet occupy a certain proportion of the transformation and distribution accidents in the operation of transformation and distribution equipment, the accidents generally have a great relationship with moisture, although measures such as dehumidification by a dehumidifier, heating by a heater and the like are adopted in the operation of the transformation and distribution equipment, the accidents sometimes occur, the daily production and life are directly and seriously influenced after the accidents occur, and therefore, the quick treatment after the accidents occur is very important. At present, no good rapid processing scheme exists, generally, a scheme of replacing devices, components or integrally replacing is adopted, the cost is high, and the power failure time is long.
Disclosure of Invention
The design purpose of the invention is as follows: the method avoids the defects in the background art, and designs a rapid processing method for the high-voltage switch cabinet body material which can thoroughly remove dibutyl phthalate on the surfaces of epoxy resin shells such as a mutual inductor, a high-voltage insulating copper bar sleeve, a high-voltage insulating column, a vacuum switch insulator and the like to cause pollution flashover.
The design causes of the invention are as follows: epoxy resin bodies such as a current transformer, a high-voltage insulating copper bar sleeve, a high-voltage insulating column, a vacuum switch insulator and the like in a high-voltage switch cabinet of 10KV and above 10KV cause high-voltage short circuit and tripping phenomena due to serious pollution flashover, and the current transformer does not cause high-voltage short circuit and tripping due to the presence of a high-voltage fuse, and only burns out the high-voltage fuse. However, after replacing the burned current transformer, the high-voltage insulating copper bar bushing, the high-voltage insulating column, the vacuum switch insulator, etc., it is still not qualified during the high-voltage insulation test, which is caused by the insulation reduction of the other un-burned epoxy resin bodies. If all current transformers, voltage transformers, high-voltage insulation copper bar sleeves, high-voltage insulation columns, vacuum switch insulators and the like are replaced, the cost is high, if the whole replacement is not only high, but also the power failure time is long, and therefore a method which is low in cost and quick in repair is urgently needed, and the method is very practical.
In a large amount of actual rush repair operations, after repeated inspection and test of parts of a high-voltage switch cabinet, the insulation of epoxy resin shells such as a mutual inductor, a high-voltage insulating copper bar sleeve, a high-voltage insulating column and a vacuum switch insulator is found to be reduced, and the epoxy resin bodies such as the mutual inductor, the high-voltage insulating copper bar sleeve, the high-voltage insulating column and the vacuum switch insulator are further inspected to find that the cause is not moisture and dust on the surfaces of the mutual inductor, the high-voltage insulating copper bar sleeve, the high-voltage insulating column and the vacuum switch insulator, so that the common methods of dehumidification, heating and the like are completely ineffective, the real cause is that dibutyl phthalate is separated out from the epoxy resin of the bodies (shells) such as the mutual inductor, the high-voltage insulating copper bar sleeve, the high-voltage insulating column and the vacuum switch insulator in an air humid. Because the cast epoxy resin is used for producing the bodies (shells) of the mutual inductor, the high-voltage insulating copper bar sleeve, the high-voltage insulating column, the vacuum switch insulator and the like, the internal toughening agent is dibutyl phthalate, the addition amount is generally about 12 percent, and the dibutyl phthalate can be separated out in a humid environment due to high water extraction property. The separated dibutyl phthalate is different from a pure product, is mixed with various impurities, has poor insulating property and is a main reason for causing flash.
Due to the characteristics of dibutyl phthalate, the chemical formula: C16H22O 4; C6H4(COOC4H9)2, molecular weight: 278.35, boiling point: 340 ℃, flash point: solubility at 171 deg.C, water solubility of 0.04% (25 deg.C), and solubility in ethanol, diethyl ether, acetone and benzene. Therefore, the washing with water is completely ineffective, the washing effect with ethanol, ether, acetone and benzene is not good, and the operation is inconvenient.
Through repeated tests, the invention discovers that dibutyl phthalate on the surfaces of epoxy resin shells such as a mutual inductor, a high-voltage insulating copper bar sleeve, a high-voltage insulating column, a vacuum switch insulator and the like is burnt off by using a butane spray gun according to the flammability (flash point: 171 ℃) and the volatility (boiling point: 340 ℃) of dibutyl phthalate, the flame temperature of the spray gun is about 800 ℃, and as long as the spray gun is moved quickly during operation and cannot stay for a long time (the stay time cannot be more than 2 seconds), the surfaces of the epoxy resin shells such as the mutual inductor, the high-voltage insulating copper bar sleeve, the high-voltage insulating column, the vacuum switch insulator and the like can be damaged, the insulation of a high-voltage line can be tested after treatment to ensure the qualification, and a high-voltage test is added to ensure the qualification, so that.
The technical scheme is as follows: a rapid processing method for pollution flashover caused by high-voltage switch cabinet body materials is characterized by comprising the following steps: and burning the dibutyl phthalate on the surfaces of epoxy resin shells such as the mutual inductor, the high-voltage insulating copper bar sleeve, the high-voltage insulating column, the vacuum switch insulator and the like by adopting flame sprayed by a butane spray gun.
Compared with the background art, the method has the advantages that dibutyl phthalate on the surfaces of epoxy resin shells such as the mutual inductor, the high-voltage insulating copper bar sleeve, the high-voltage insulating column and the vacuum switch insulator is burnt out by using the butane spray gun, so that the method is quick, effective and low in cost, the insulation reliability of the high-voltage line is ensured after treatment, and the safe and reliable electrification operation is realized again.
Detailed Description
Example 1: a rapid processing method for pollution flashover caused by high-voltage switch cabinet body materials is characterized by comprising the following steps: and burning the dibutyl phthalate on the surfaces of epoxy resin shells such as the mutual inductor, the high-voltage insulating copper bar sleeve, the high-voltage insulating column, the vacuum switch insulator and the like by adopting flame sprayed by a butane spray gun. The flame temperature of the butane spray gun is more than 700 ℃ and less than 900 ℃, and when dibutyl phthalate on the surfaces of epoxy resin shells such as a mutual inductor, a high-voltage insulating copper bar sleeve, a high-voltage insulating column and a vacuum switch insulator is burnt out by flame sprayed by the butane spray gun, the spray gun needs to be moved quickly, and the temperature generated by the residence time of the mutual inductor, the high-voltage insulating copper bar sleeve, the high-voltage insulating column and the vacuum switch insulator is less than the temperature born by the damage of the mutual inductor, the high-voltage insulating copper bar sleeve, the high-voltage insulating column and the vacuum switch insulator.
Pollution flashover caused by high-voltage switch cabinet body material
| Existing methods | Dehumidification and heating | Frequent high voltage short circuit and trip caused by pollution flashover | Poor reliability |
| The method of the present application | Butane flame combustion | High-voltage short circuit and trip caused by pollution flashover can not occur | Reliability 100% |
The pollution caused by the bulk material is as follows: dibutyl phthalate on the surfaces of epoxy resin shells of a mutual inductor, a high-voltage insulating copper bar sleeve, a high-voltage insulating column, a vacuum switch insulator and the like.
It is to be understood that: although the above embodiments have described the design idea of the present invention in more detail, these descriptions are only simple descriptions of the design idea of the present invention, and are not limitations of the design idea of the present invention, and any combination, addition, or modification without departing from the design idea of the present invention falls within the scope of the present invention.
Claims (1)
1. A rapid processing method for pollution flashover caused by high-voltage switch cabinet body materials is characterized by comprising the following steps: based on the phenomena of high-voltage short circuit and tripping caused by serious pollution flashover of an epoxy resin body of a current transformer, a high-voltage insulating copper bar sleeve, a high-voltage insulating column and a vacuum switch insulator in a high-voltage switch cabinet of more than 10KV, a butane spray gun is adopted to spray flame with the temperature of more than 700 ℃ and less than 900 ℃ to burn dibutyl phthalate on the surfaces of epoxy resin shells of the current transformer, the high-voltage insulating copper bar sleeve, the high-voltage insulating column and the vacuum switch insulator; when dibutyl phthalate on the surfaces of epoxy resin shells of the mutual inductor, the high-voltage insulating copper bar sleeve, the high-voltage insulating column and the vacuum switch insulator is burnt off by adopting flame sprayed by a butane spray gun, the spray gun is moved quickly, the stay time of the spray gun on the surfaces of the mutual inductor, the high-voltage insulating copper bar sleeve, the high-voltage insulating column and the vacuum switch insulator is not more than 2 seconds, and the generated temperature is lower than the temperature born by damage of the mutual inductor, the high-voltage insulating copper bar sleeve, the high-voltage insulating column and the vacuum switch insulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810240989.1A CN108499983B (en) | 2018-03-22 | 2018-03-22 | Rapid treatment method for pollution flashover caused by high-voltage switch cabinet body material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810240989.1A CN108499983B (en) | 2018-03-22 | 2018-03-22 | Rapid treatment method for pollution flashover caused by high-voltage switch cabinet body material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108499983A CN108499983A (en) | 2018-09-07 |
| CN108499983B true CN108499983B (en) | 2021-01-01 |
Family
ID=63378145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810240989.1A Active CN108499983B (en) | 2018-03-22 | 2018-03-22 | Rapid treatment method for pollution flashover caused by high-voltage switch cabinet body material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108499983B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB739322A (en) * | 1953-12-30 | 1955-10-26 | Du Pont | Process for removing organic polymers from processing equipment |
| DE19944954A1 (en) * | 1999-09-20 | 2001-03-22 | Abb Hochspannungstechnik Ag | Electrical isolator for outdoor use with overhead lines, has two metallic connection fittings and with insulator body held between connection fittings |
| CN1177333C (en) * | 2001-07-03 | 2004-11-24 | 赵树海 | Wind-driven cleaning ring for insulator |
| CN102614988B (en) * | 2012-03-26 | 2014-06-11 | 兖矿集团有限公司 | Cleaning device for pollution flashover preventive porcelain insulator for electrostatic dust collector and application of cleaning device |
| CN103509299B (en) * | 2013-09-05 | 2015-09-30 | 安徽省科林电子有限公司 | A kind of transformer insulating sheath of resistance to high humidity material and preparation method thereof |
| CN104226654B (en) * | 2014-09-04 | 2016-09-28 | 江苏亨通光纤科技有限公司 | The clean method of quartz central canal in a kind of optical fiber uv oven |
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2018
- 2018-03-22 CN CN201810240989.1A patent/CN108499983B/en active Active
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| Publication number | Publication date |
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| CN108499983A (en) | 2018-09-07 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20240514 Address after: 311100 Room 201, Floor 2, Building 1, No. 833, Linping Avenue, Linping District, Hangzhou, Zhejiang Patentee after: Zhejiang Liansheng Electric Co.,Ltd. Country or region after: China Address before: 311100 2 / F, building 1, No. 833, Linping Avenue, Linping street, Yuhang District, Hangzhou City, Zhejiang Province Patentee before: HANGZHOU PEIYAN ELECTRIC MANUFACTURING Co.,Ltd. Country or region before: China |
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| TR01 | Transfer of patent right |