CN103226071B - Main transformer on-load switch exempts from dismounting quick sampling device - Google Patents

Main transformer on-load switch exempts from dismounting quick sampling device Download PDF

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Publication number
CN103226071B
CN103226071B CN201310143366.XA CN201310143366A CN103226071B CN 103226071 B CN103226071 B CN 103226071B CN 201310143366 A CN201310143366 A CN 201310143366A CN 103226071 B CN103226071 B CN 103226071B
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China
Prior art keywords
iron pipe
hollow iron
main transformer
oil
base
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Application number
CN201310143366.XA
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Chinese (zh)
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CN103226071A (en
Inventor
成亚伟
吴锡斌
汪晟达
曹仁全
黄芬
吴昊
钱伊姗
万达
胡金锋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
State Grid Jiangsu Electric Power Co Ltd
Wuxi Power Supply Co of Jiangsu Electric Power Co
Original Assignee
State Grid Corp of China SGCC
State Grid Jiangsu Electric Power Co Ltd
Wuxi Power Supply Co of Jiangsu Electric Power Co
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Application filed by State Grid Corp of China SGCC, State Grid Jiangsu Electric Power Co Ltd, Wuxi Power Supply Co of Jiangsu Electric Power Co filed Critical State Grid Corp of China SGCC
Priority to CN201310143366.XA priority Critical patent/CN103226071B/en
Publication of CN103226071A publication Critical patent/CN103226071A/en
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Publication of CN103226071B publication Critical patent/CN103226071B/en
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Abstract

The invention belongs to field of electrical equipment, relate to a kind of main transformer on-load switch and exempt from dismounting quick sampling device, hollow iron pipe afterbody is arranged in the mounting hole of base, and hollow iron pipe outer circumference surface is set with copper block, and copper block lower end is arranged in base installing hole; The afterbody of described hollow iron pipe is taper, and at hollow iron pipe rear side face diameter to offering oiler, sets out hydraulic fluid port and oil recovery mouth at hollow iron pipe head, and described oil-out is connected with the hollow channel of oiler by hollow iron pipe.This apparatus structure is simple, easy to use, is applicable to the main transformer of electric substation 110KV and 35KV.

Description

Main transformer on-load switch exempts from dismounting quick sampling device
Technical field
The invention belongs to field of electrical equipment, relate to a kind of main transformer on-load switch and exempt from dismounting quick sampling device.
Background technology
Existing transformer oil sample collecting work comprises following three contents: main transformer body simplifies oil sample collection, and main transformer body chromatogram oil sample gathers and main transformer on-load switch simplifies oil sample collection.Gather requirement according to existing cycle oil sample, a main transformer needs collection two secondary body to simplify oil sample and has to carry to simplify oil sample every year, and these oil samples are that the situation analysis that main transformer normally runs provides important foundation.
Wherein, main transformer on-load switch sampling valve is straight valve, first need pull down shrouding during sampling, then on oil sample collector, carrys additionally oil drum, turns on straight valve, uses sampling bottle access oil sample; Close straight valve after sampling, clean oil stain, reinstall closed, sampling terminates.Whole sampling process is comparatively loaded down with trivial details, the time expended on dismounting shrouding is more, due to inherent shortcoming during straight valve design, cause transformer oil in sampling process to splash and overflow, oily flow path direction and flow are difficult to hold, not only waste oil sample, also cause pollution to environment, the waste of oil sample also causes each collection capacity too much, thus decreases times of collection, cause the interval time of twice loaded switch repairing shorter, be about about 2 years.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of main transformer on-load switch simple and reasonable for structure to exempt from dismounting quick sampling device, this apparatus structure is simple, easy to use, is applicable to the main transformer of electric substation 110KV and 35KV.
According to technical scheme provided by the invention: a kind of main transformer on-load switch exempts from dismounting quick sampling device, it is characterized in that: hollow iron pipe afterbody is arranged in the mounting hole of base, hollow iron pipe outer circumference surface is set with copper block, and copper block lower end is arranged in base installing hole; The afterbody of described hollow iron pipe is taper, and at hollow iron pipe rear side face diameter to offering oiler, sets out hydraulic fluid port and oil recovery mouth at hollow iron pipe head, and described oil-out is connected with the hollow channel of oiler by hollow iron pipe.
As a further improvement on the present invention, described base is in the form of annular discs, and on base, circumferentially shape is uniform offers four connecting holes.
As a further improvement on the present invention, described copper block outer circumference surface is installed with round nut.
As a further improvement on the present invention, described oil-out is provided with the bolt for preventing oil outlet from coming off.
Compared with prior art, advantage is in the present invention: (1) the present invention, when sampling, without the need to dismounting, thus simplifies the course of work, shortens the whole working time.(2) when can overcome the sampling existing for original load switch sampling valve, transformer oil easily splashes and overflows, and oily flow path direction and flow are subject to the defect of the factor such as weather, equipment impact.(3) interval during the present invention can extend twice repairing, time needed for original load switch sampling is reduced to 5 minutes by 10 minutes, thus reduces the frequency of power cut of main transformer, reduce the job safety risk of maintainer, and the method is simple to operation, be conducive to promoting.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is perspective structure schematic diagram of the present invention.
Embodiment
Below in conjunction with concrete drawings and Examples, the invention will be further described.
As shown in Figure 1 and Figure 2, base 1, outer side seal circle 2, oiler 3, sampling mouth 4, oil-out 5, copper block 6, hollow iron pipe 7, connecting hole 8, round nut 9 etc.
As shown in Figure 2, the present invention is that a kind of main transformer on-load switch exempts from dismounting quick sampling device, hollow iron pipe 7 afterbody is arranged in the mounting hole of base 1, the screw thread of hollow iron pipe 7 afterbody can be engaged compression with this body canal, by rotating the thimble turnover controlled in hollow iron pipe 7, when thimble is opened, oil flows through spherical oiler 3 and flows out, when closing, oiler 3 blocks by thimble, guarantee that transformer oil can not be excessive, hollow iron pipe 7 outer circumference surface is set with copper block 6, and copper block 6 lower end is arranged in base 1 mounting hole; The afterbody of described hollow iron pipe 7 is taper; and at hollow iron pipe 7 rear side face diameter to offering oiler 3; hydraulic fluid port 5 and oil recovery mouth 4 is set out at hollow iron pipe 7 head; described oil-out 5 is connected with the hollow channel of oiler 3 by hollow iron pipe 7; oil recovery mouth 4 reduces further compared to former sampling valve; make oil column can concentrate trickling out, the splashing of overflowing of oil sample can not be caused, while protection of the environment, effectively improve the tidiness of workplace.
Base 1 is in the form of annular discs, and on base 1, circumferentially shape is uniform offers four connecting holes 8, and connecting hole 8 is for fixedly mounting connection.
Described copper block 6 outer circumference surface is installed with round nut 9.
Oil-out 5 is provided with for spacing bolt, can prevent oil outlet from coming off and cause oil spout.
This product eliminates straight valve in existing apparatus and shrouding, and structure simplifies further, effectively can reduce the number of times of main transformer switch repairing after coming into operation, and reduces the technical risk because loaded switch repairing brings.

Claims (1)

1. a main transformer on-load switch exempts from dismounting quick sampling device, it is characterized in that: hollow iron pipe (7) afterbody is arranged in the mounting hole of base (1), hollow iron pipe (7) outer circumference surface is set with copper block (6), and copper block (6) lower end is arranged in base (1) mounting hole; The afterbody of described hollow iron pipe (7) is taper, and at hollow iron pipe (7) rear side face diameter to offering oiler (3), set out hydraulic fluid port (5) and oil recovery mouth (4) at hollow iron pipe (7) head, described oil-out (5) is connected with the hollow channel of oiler (3) by hollow iron pipe (7);
Described base (1) is in the form of annular discs, and on base (1), circumferentially shape is uniform offers four connecting holes (8);
Described copper block (6) outer circumference surface is installed with round nut (9);
Described oil-out (5) is provided with the bolt for preventing oil outlet from coming off.
CN201310143366.XA 2013-04-23 2013-04-23 Main transformer on-load switch exempts from dismounting quick sampling device Active CN103226071B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310143366.XA CN103226071B (en) 2013-04-23 2013-04-23 Main transformer on-load switch exempts from dismounting quick sampling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310143366.XA CN103226071B (en) 2013-04-23 2013-04-23 Main transformer on-load switch exempts from dismounting quick sampling device

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CN103226071A CN103226071A (en) 2013-07-31
CN103226071B true CN103226071B (en) 2015-11-04

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107677507A (en) * 2017-10-11 2018-02-09 广东电网有限责任公司东莞供电局 Oil sampling device for main transformer on-load switch
CN109781457A (en) * 2019-03-11 2019-05-21 国网上海市电力公司 A kind of vacuum on-load operation switch insulating oil sampling apparatus

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4350052A (en) * 1980-07-30 1982-09-21 Elizabeth Virginia Kendall Apparatus and method for tapping and extracting oil samples from an underground high pressure pipe-type transmission cable system
CA2356256A1 (en) * 2001-09-10 2003-03-10 David Henry Prymych Sampling device
CN201561883U (en) * 2009-12-03 2010-08-25 中国石油化工股份有限公司 No-leak liquid sampler
CN201589727U (en) * 2010-01-06 2010-09-22 杭州柯林电力设备有限公司 General vacuum sampling device
CN202255933U (en) * 2011-08-08 2012-05-30 华北电网有限公司廊坊供电公司 Vacuum type online oil sampling device with on-load tap changer oil chamber
CN102607886A (en) * 2012-03-05 2012-07-25 杭州柯林电力设备有限公司 Drainage type vacuum sampling device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4350052A (en) * 1980-07-30 1982-09-21 Elizabeth Virginia Kendall Apparatus and method for tapping and extracting oil samples from an underground high pressure pipe-type transmission cable system
CA2356256A1 (en) * 2001-09-10 2003-03-10 David Henry Prymych Sampling device
CN201561883U (en) * 2009-12-03 2010-08-25 中国石油化工股份有限公司 No-leak liquid sampler
CN201589727U (en) * 2010-01-06 2010-09-22 杭州柯林电力设备有限公司 General vacuum sampling device
CN202255933U (en) * 2011-08-08 2012-05-30 华北电网有限公司廊坊供电公司 Vacuum type online oil sampling device with on-load tap changer oil chamber
CN102607886A (en) * 2012-03-05 2012-07-25 杭州柯林电力设备有限公司 Drainage type vacuum sampling device

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