CN109817412A - A kind of insulation shell and its processing method for electric power electric transformer - Google Patents

A kind of insulation shell and its processing method for electric power electric transformer Download PDF

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Publication number
CN109817412A
CN109817412A CN201711163526.1A CN201711163526A CN109817412A CN 109817412 A CN109817412 A CN 109817412A CN 201711163526 A CN201711163526 A CN 201711163526A CN 109817412 A CN109817412 A CN 109817412A
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China
Prior art keywords
shell
built
insulation shell
fitting
electric power
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CN201711163526.1A
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Chinese (zh)
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CN109817412B (en
Inventor
李纬
廖庆华
王刚
汪文斌
曾琼程
史红岩
罗赞才
罗乐
陈可
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Guangyuan Sci & Tech Zhuzhou Electric Locomotive LLC
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Guangyuan Sci & Tech Zhuzhou Electric Locomotive LLC
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Priority to CN201711163526.1A priority Critical patent/CN109817412B/en
Publication of CN109817412A publication Critical patent/CN109817412A/en
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Publication of CN109817412B publication Critical patent/CN109817412B/en
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  • Insulating Bodies (AREA)
  • Insulating Of Coils (AREA)
  • Organic Insulating Materials (AREA)

Abstract

The invention discloses a kind of insulation shells for electric power electric transformer, the built-in fitting for being used to install other equipment including shell made of glass reinforced plastic and on shell, and each face of the shell, which is wrapped up, is equipped with interlayer made of NOMEX cardboard.Insulation shell of the invention is made of glass reinforced plastic inner clip NOMEX cardboard, and unique material and structure make insulation shell have better high pressure resistant electrical property for existing insulation shell.Built-in fitting is made of nonmetal parts, on the one hand improves insulation performance;On the other hand, the overall weight of insulation shell is greatly reduced.

Description

A kind of insulation shell and its processing method for electric power electric transformer
Technical field
The invention belongs to field of track traffic, and in particular to a kind of insulation shell of the electric power electric transformer for EMU And its processing method.
Background technique
Currently, the insulation shell for EMU electric power electric transformer is generally made of glass-reinforced plastic material, glass is being pasted Pre-embedding metal part ultimately forms the insulation shell with built-in fitting for installing other equipment during glass steel.It is actually using In the process, it has following defects that
1. although generally can only achieve 30,000 volts of pressure resistances, if there is the insulation of requirements at the higher level glass-reinforced plastic material has insulation performance Property, this kind of insulation shell is difficult to reach requirement.For example, need to produce the insulation shell that can satisfy 60,000 volts of requirements above at present, it is existing Technology is difficult to accomplish.
2. built-in fitting is metal, on the one hand since metal is conductor, cause product insulation performance poor, proof voltage can be compared with It is low;On the other hand, metal quality weight considerably increases the overall weight of insulation shell.
NOMEX cardboard involved in this case is a kind of aromatic polyester amine polymer of synthesis, is E.I.Du Pont Company's invention wound It makes and is capable of providing when it is processed into various paper kenels in a kind of nineteen sixty-five commercialized scientific and technological heat resistanceheat resistant insulating materials Fabulous motor, chemistry and mechanical integrity.
Gel coat (English name gel coat), it is added made of the dispersion such as pigment and thixotropic agent in unsaturated polyester (UP) (UP) The coloring thixotropy product that glass reinforced plastic (FRP) and table top finishing coat are used to develop.
Summary of the invention
In view of the above-mentioned problems, the present invention is intended to provide a kind of be used for electric power electric transformer with more excellent insulation performance Insulation shell and its processing method.
The technical solution that the present invention solves the problems, such as is: a kind of insulation shell for electric power electric transformer, including glass reinforced plastic Manufactured shell and the built-in fitting for being used to install other equipment on shell, each face of the shell, which is wrapped up, to be set There is interlayer made of NOMEX cardboard.
Interlayer made of NOMEX cardboard is set in shell in above scheme, since NOMEX cardboard has excellent insulation Performance, it is more preferable than the insulation performance of glass-reinforced plastic material, so that can only achieve the shell of 30,000 volts of voltage endurance capabilities originally, it now is possible to 60,000 volts of voltage endurance capability are reached
Preferably, the built-in fitting is made of nylon material.The built-in fitting of this kind of material is first very light, is second insulator, absolutely Edge performance is better than metal.
Preferably, the shell length is 2.9~3.5m, and the thickness of interlayer is 0.5~1mm.
Correspondingly, the present invention also provides a kind of processing methods of above-mentioned insulation shell for electric power electric transformer, including Following steps:
(a) die surface is cleaned out, coating release agent, later in the uniform glue spraying clothing of die surface;
(b) on gel coat, glass cloth is pasted layer by layer, and NOMEX cardboard and built-in fitting are bonded in glass before reaching preset thickness On glass cloth;
(c) continue to paste glass cloth again up to design thickness, so that NOMEX cardboard is wrapped in interior, built-in fitting part by glass cloth It is embedded in glass cloth, partial denudation is outside;
(d) product is vacuum-treated immediately after pasting;
(e) insulation shell product can be obtained in demoulding.
Preferably, the built-in fitting is made of nylon material.
Preferably, the shell length is 2.9~3.5m, and the thickness of interlayer is 0.5~1mm.
Remarkable result of the invention is:
1. insulation shell is made of glass reinforced plastic inner clip NOMEX cardboard, unique material and structure make insulation shell relative to existing exhausted There is better high pressure resistant electrical property for edge shell.
2. built-in fitting is made of nonmetal parts, insulation performance is on the one hand improved;On the other hand, insulation is greatly reduced The overall weight of shell.
Detailed description of the invention
The present invention will be further explained below with reference to the attached drawings.
Fig. 1 is insulation shell structural schematic diagram of the present invention.
In figure: 1- shell, 2- built-in fitting, 3- interlayer.
Specific embodiment
As shown in Figure 1, a kind of insulation shell for electric power electric transformer, including shell 1, Yi Jishe made of glass reinforced plastic In the nylon material built-in fitting 2 for being used to install other equipment on shell 1.Each face of the shell 1, which is wrapped up, to be equipped with Interlayer 3 made of NOMEX cardboard.
1 length of shell is 2.9~3.5m, and the interlayer 3 is with a thickness of 0.5~1mm.
The present embodiment also provides a kind of processing method of above-mentioned insulation shell for electric power electric transformer, including walks as follows It is rapid:
(a) die surface is cleaned out, coating release agent, later in the uniform glue spraying clothing of die surface.
(b) on gel coat, glass cloth is pasted layer by layer, is bonded NOMEX cardboard and built-in fitting before reaching preset thickness On glass cloth.
(c) continue to paste glass cloth again up to design thickness, so that NOMEX cardboard is wrapped in interior, built-in fitting 2 by glass cloth It is partially submerged into glass cloth, partial denudation is outside.
(d) product is vacuum-treated immediately after pasting.
(e) insulation shell product can be obtained in demoulding.

Claims (6)

1. a kind of insulation shell for electric power electric transformer, including shell made of glass reinforced plastic (1) and it is set to shell (1) On for installing the built-in fittings (2) of other equipment, it is characterised in that: wrap up equipped with NOMEX in each face of the shell (1) Interlayer made of cardboard (3).
2. the insulation shell according to claim 1 for electric power electric transformer, it is characterised in that: the built-in fitting (2) It is made of nylon material.
3. the insulation shell according to claim 1 for electric power electric transformer, it is characterised in that: the shell (1) is long Degree is 2.9~3.5m, and the interlayer (3) is with a thickness of 0.5~1mm.
4. a kind of processing method for the insulation shell of electric power electric transformer as described in claim 1, it is characterised in that including Following steps:
(a) die surface is cleaned out, coating release agent, later in the uniform glue spraying clothing of die surface;
(b) on gel coat, glass cloth is pasted layer by layer, and NOMEX cardboard and built-in fitting are bonded in glass before reaching preset thickness On glass cloth;
(c) continue to paste glass cloth again up to design thickness, so that NOMEX cardboard is wrapped in interior, built-in fitting (2) portion by glass cloth Divide in insertion glass cloth, partial denudation is outside;
(d) product is vacuum-treated immediately after pasting;
(e) insulation shell product can be obtained in demoulding.
5. processing method according to claim 4, it is characterised in that: the built-in fitting (2) is made of nylon material.
6. processing method according to claim 4, it is characterised in that: shell (1) length is 2.9~3.5m, described Interlayer (3) is with a thickness of 0.5~1mm.
CN201711163526.1A 2017-11-21 2017-11-21 Insulating shell for power electronic transformer and processing method thereof Active CN109817412B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711163526.1A CN109817412B (en) 2017-11-21 2017-11-21 Insulating shell for power electronic transformer and processing method thereof

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Application Number Priority Date Filing Date Title
CN201711163526.1A CN109817412B (en) 2017-11-21 2017-11-21 Insulating shell for power electronic transformer and processing method thereof

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CN109817412A true CN109817412A (en) 2019-05-28
CN109817412B CN109817412B (en) 2024-07-30

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Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN86203852U (en) * 1986-05-27 1987-10-03 山东省武城棉机厂 Integral vehicle body made of glass fibre reinforced plastics (frp)
CN2132254Y (en) * 1992-06-15 1993-05-05 胡宗 Novel dry-type energy-saving power transformer
CN101289826A (en) * 2007-04-17 2008-10-22 中国铁道科学研究院铁道建筑研究所 Crossties of glass fiber reinforced plastics and producing method thereof
CN201809907U (en) * 2010-09-20 2011-04-27 马义和 Prefabricated member for corrugated roof covering or cornice
CN104088481A (en) * 2014-07-18 2014-10-08 北京城建建设工程有限公司 Sandwich composite glass fiber reinforced plastic plenum chamber for auditorium and construction method thereof
CN204117824U (en) * 2014-08-04 2015-01-21 河北天安电力设备有限公司 A kind of outdoor breaker PT
CN104319064A (en) * 2014-09-30 2015-01-28 天津市元和华铁电气设备有限公司 Fireproof insulated casing for isolation transformer
CN105069857A (en) * 2015-07-20 2015-11-18 西安航空制动科技有限公司 Flight data recorder casing and preparation method thereof
CN105082556A (en) * 2014-05-07 2015-11-25 上海航天设备制造总厂 Von Karman shaped satellite fairing and moulding method thereof
CN105153638A (en) * 2015-07-09 2015-12-16 光合(北京)文化创意股份有限公司 Fiber reinforced plastic and method for producing sculpture from fiber reinforced plastic
CN206271506U (en) * 2016-12-02 2017-06-20 浙江志杰电力科技有限公司 A kind of firm formula European-type box becomes
CN207651290U (en) * 2017-11-21 2018-07-24 株洲电力机车广缘科技有限责任公司 A kind of insulation shell for electric power electric transformer

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN86203852U (en) * 1986-05-27 1987-10-03 山东省武城棉机厂 Integral vehicle body made of glass fibre reinforced plastics (frp)
CN2132254Y (en) * 1992-06-15 1993-05-05 胡宗 Novel dry-type energy-saving power transformer
CN101289826A (en) * 2007-04-17 2008-10-22 中国铁道科学研究院铁道建筑研究所 Crossties of glass fiber reinforced plastics and producing method thereof
CN201809907U (en) * 2010-09-20 2011-04-27 马义和 Prefabricated member for corrugated roof covering or cornice
CN105082556A (en) * 2014-05-07 2015-11-25 上海航天设备制造总厂 Von Karman shaped satellite fairing and moulding method thereof
CN104088481A (en) * 2014-07-18 2014-10-08 北京城建建设工程有限公司 Sandwich composite glass fiber reinforced plastic plenum chamber for auditorium and construction method thereof
CN204117824U (en) * 2014-08-04 2015-01-21 河北天安电力设备有限公司 A kind of outdoor breaker PT
CN104319064A (en) * 2014-09-30 2015-01-28 天津市元和华铁电气设备有限公司 Fireproof insulated casing for isolation transformer
CN105153638A (en) * 2015-07-09 2015-12-16 光合(北京)文化创意股份有限公司 Fiber reinforced plastic and method for producing sculpture from fiber reinforced plastic
CN105069857A (en) * 2015-07-20 2015-11-18 西安航空制动科技有限公司 Flight data recorder casing and preparation method thereof
CN206271506U (en) * 2016-12-02 2017-06-20 浙江志杰电力科技有限公司 A kind of firm formula European-type box becomes
CN207651290U (en) * 2017-11-21 2018-07-24 株洲电力机车广缘科技有限责任公司 A kind of insulation shell for electric power electric transformer

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