CN202018342U - Internal water flow temperature rise measuring device for water-cooling winding of turbogenerator - Google Patents

Internal water flow temperature rise measuring device for water-cooling winding of turbogenerator Download PDF

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Publication number
CN202018342U
CN202018342U CN2011201041528U CN201120104152U CN202018342U CN 202018342 U CN202018342 U CN 202018342U CN 2011201041528 U CN2011201041528 U CN 2011201041528U CN 201120104152 U CN201120104152 U CN 201120104152U CN 202018342 U CN202018342 U CN 202018342U
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CN
China
Prior art keywords
water flow
temperature rise
measuring device
charge amplifier
signal output
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 - Fee Related
Application number
CN2011201041528U
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Chinese (zh)
Inventor
马传兵
张大为
李志斌
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
Electric Power Research Institute of State Grid Heilongjiang Electric Power Co Ltd
Original Assignee
Electric Power Research Institute of State Grid Heilongjiang Electric Power Co Ltd
Priority date (The priority date 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 date listed.)
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Publication date
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Priority to CN2011201041528U priority Critical patent/CN202018342U/en
Application granted granted Critical
Publication of CN202018342U publication Critical patent/CN202018342U/en
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Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses an internal water flow temperature rise measuring device for a water-cooling winding of a turbogenerator, and relates to the internal water flow temperature rise measuring device for the water-cooling winding of the turbogenerator. The internal water flow temperature rise measuring device is used for measuring the temperature of a water pipe, and overcomes the defect that a temperature numerical value which is obtained in a conventional measuring manner is biased. The internal water flow temperature rise measuring device comprises a thermocouple, a charge amplifier, an A/D (Analog to Digital) conversion circuit, a computer, a spring clip and a heat insulating material covering body, wherein, a signal output terminal of the thermocouple is connected with a signal input terminal of the charge amplifier; the signal output terminal of the charge amplifier is connected with the signal input terminal of the A/D conversion circuit; the signal output terminal of the A/D conversion circuit is connected with the signal input terminal of the computer; one surface of the heat insulating material covering body surrounds a half of the spherical thermocouple; and the other surface of the heat insulating material covering body is fixed on the inner surface of one clamp arm of the spring clip.

Description

Turbodynamo water-cooled winding water flow inside warm raising measurement set
Technical field
The utility model relates to a kind of turbodynamo water-cooled winding water flow inside warm raising measurement set.
Background technology
Along with the continuous expansion of large turbo-type generator capacity, the temperature rise of control generator unit stator winding operates in the limit of temperature rise of allowing it, becomes the key that guarantees the generator safe and stable operation.Stator winding internal water cooling technology is generally adopted in large turbo-type generator stator winding cooling at present, because high-rating generator stator winding structure complexity, the manufacturing installation difficulty is big, cause the circulation of stator winding internal water system not smooth easily, therefore large turbo-type generator stator winding internal water system is carried out test check, guarantee that generator unit stator winding internal water system is very important without any latch up phenomenon.The test method that provides according to " revision of JB/T6228-1992 " turbodynamo winding internal water system test method and evaluation " " instructs, need the testing ground at first generator unit stator direct conductor cooling water to be heated to high temperature, pass to chilled water then, until reaching temperature stabilization.This process need to turbodynamo water-cooled winding water flow inside temperature rise measure in real time, all be to measure cooling water flow out of on the adapter outside surface behind the core motor winding of turbo-generator end at present by the people is manual to the measurement of water temperature, because temperature element is with the loose contact of taking over outside surface and do not take any insulation measure, so there is deviation in the Temperature numerical that measures.
The utility model content
The purpose of this utility model provides a kind of turbodynamo water-cooled winding water flow inside warm raising measurement set, to overcome the defective that there is deviation in Temperature numerical that existing metering system obtains.It comprises thermopair 1, charge amplifier 2, A/D change-over circuit 3 and computing machine 4, the signal output part of described thermopair 1 connects the signal input part of charge amplifier 2, the signal output part of charge amplifier 2 connects the signal input part of A/D change-over circuit 3, and the signal output part of A/D change-over circuit 3 connects the signal input part of computing machine 4; It also comprises spring clip 5 and heat-insulation material nappe 6, and a loaf of bread of heat-insulation material nappe 6 is put half of spherical thermopair 1 on the spot, and another face of heat-insulation material nappe 6 is fixed on the inside surface of 5 one tong arms of spring clip.
During work, spring clip 5 is clipped in cooling water flow out of of turbo-generator end to be taken on the outside surface, be subjected to the clamping force effect of spring clip, thermopair 1 exposed hemisphere contacts with the adapter intimate, and between the tong arm of thermopair 1 and spring clip 5 and and air between insulation thermal insulation material nappe 6 hold, can not dissipate heat, the measured value that therefore obtains is accurate, error free, has overcome the defective that there is deviation in Temperature numerical that existing metering system obtains.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Embodiment one: specify present embodiment below in conjunction with Fig. 1.Present embodiment comprises thermopair 1, charge amplifier 2, A/D change-over circuit 3 and computing machine 4, the signal output part of described thermopair 1 connects the signal input part of charge amplifier 2, the signal output part of charge amplifier 2 connects the signal input part of A/D change-over circuit 3, and the signal output part of A/D change-over circuit 3 connects the signal input part of computing machine 4; It also comprises spring clip 5 and heat-insulation material nappe 6, and a loaf of bread of heat-insulation material nappe 6 is put half of spherical thermopair 1 on the spot, and another face of heat-insulation material nappe 6 is fixed on the inside surface of 5 one tong arms of spring clip.
Embodiment two: the difference of present embodiment and embodiment one is: thermopair 1 is the manganese copper-constantan thermocouple, is formed by the end of manganin wire and the end sintering of constantan line together.
Embodiment three: the difference of present embodiment and embodiment one is: heat-insulation material nappe 6 adopts insulation quilt.

Claims (3)

1. turbodynamo water-cooled winding water flow inside warm raising measurement set, it comprises thermopair (1), charge amplifier (2), A/D change-over circuit (3) and computing machine (4), the signal output part of described thermopair (1) connects the signal input part of charge amplifier (2), the signal output part of charge amplifier (2) connects the signal input part of A/D change-over circuit (3), and the signal output part of A/D change-over circuit (3) connects the signal input part of computing machine (4); It is characterized in that it also comprises spring clip (5) and heat-insulation material nappe (6), a loaf of bread of heat-insulation material nappe (6) is put half of spherical thermopair (1) on the spot, and another face of heat-insulation material nappe (6) is fixed on the inside surface of (5) tong arms of spring clip.
2. turbodynamo water-cooled winding water flow inside warm raising measurement set according to claim 1 is characterized in that thermopair (1) is the manganese copper-constantan thermocouple.
3. turbodynamo water-cooled winding water flow inside warm raising measurement set according to claim 1 is characterized in that heat-insulation material nappe (6) adopts insulation quilt.
CN2011201041528U 2011-04-11 2011-04-11 Internal water flow temperature rise measuring device for water-cooling winding of turbogenerator Expired - Fee Related CN202018342U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201041528U CN202018342U (en) 2011-04-11 2011-04-11 Internal water flow temperature rise measuring device for water-cooling winding of turbogenerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201041528U CN202018342U (en) 2011-04-11 2011-04-11 Internal water flow temperature rise measuring device for water-cooling winding of turbogenerator

Publications (1)

Publication Number Publication Date
CN202018342U true CN202018342U (en) 2011-10-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011201041528U Expired - Fee Related CN202018342U (en) 2011-04-11 2011-04-11 Internal water flow temperature rise measuring device for water-cooling winding of turbogenerator

Country Status (1)

Country Link
CN (1) CN202018342U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105093567A (en) * 2015-09-25 2015-11-25 温州市佳宏眼镜厂 Optical glasses capable of being connected with sunglasses
CN106644120A (en) * 2016-12-07 2017-05-10 四川秋明山测绘有限公司 Scissor type temperature measuring device
CN111157129A (en) * 2020-02-18 2020-05-15 佛山市顺德区伊戈尔电力科技有限公司 Temperature measuring device and electric coil component applied to same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105093567A (en) * 2015-09-25 2015-11-25 温州市佳宏眼镜厂 Optical glasses capable of being connected with sunglasses
CN106644120A (en) * 2016-12-07 2017-05-10 四川秋明山测绘有限公司 Scissor type temperature measuring device
CN111157129A (en) * 2020-02-18 2020-05-15 佛山市顺德区伊戈尔电力科技有限公司 Temperature measuring device and electric coil component applied to same

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ASS Succession or assignment of patent right

Owner name: HEILONGJIANG ELECTRIC POWER RESEARCH INSTITUTE

Effective date: 20130424

Owner name: STATE ELECTRIC NET CROP.

Free format text: FORMER OWNER: HEILONGJIANG ELECTRIC POWER RESEARCH INSTITUTE

Effective date: 20130424

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COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 150030 HARBIN, HEILONGJIANG PROVINCE TO: 100761 XICHENG, BEIJING

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Effective date of registration: 20130424

Address after: 100761 West Chang'an Avenue, Beijing, No. 86, No.

Patentee after: State Grid Corporation of China

Patentee after: Heilongjiang Electric Power Research Institute

Address before: 150030 Xiangjiang Road, Xiangfang District, Heilongjiang, No. 7, No.

Patentee before: Heilongjiang Electric Power Research Institute

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20111026

Termination date: 20180411

CF01 Termination of patent right due to non-payment of annual fee