CN109374516A - A kind of route suspended compound insulator surface dusting detection method - Google Patents

A kind of route suspended compound insulator surface dusting detection method Download PDF

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Publication number
CN109374516A
CN109374516A CN201811455237.3A CN201811455237A CN109374516A CN 109374516 A CN109374516 A CN 109374516A CN 201811455237 A CN201811455237 A CN 201811455237A CN 109374516 A CN109374516 A CN 109374516A
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China
Prior art keywords
molecular diaphragm
molecular
diaphragm
parts
composite insulator
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CN201811455237.3A
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Chinese (zh)
Inventor
张珣
万小东
刘继承
向文祥
郭景武
王星超
南敬
刘春堂
向丰
李瑶琴
王清
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State Grid Corp of China SGCC
China Electric Power Research Institute Co Ltd CEPRI
Maintenance Branch of State Grid Hubei Electric Power Co Ltd
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State Grid Corp of China SGCC
China Electric Power Research Institute Co Ltd CEPRI
Maintenance Branch of State Grid Hubei Electric Power Co Ltd
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Priority to CN201811455237.3A priority Critical patent/CN109374516A/en
Publication of CN109374516A publication Critical patent/CN109374516A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N17/00Investigating resistance of materials to the weather, to corrosion, or to light

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  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Environmental Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The present invention provides a kind of route suspended compound insulator surface dusting detection methods, include the following steps: A: high-molecular diaphragm being pasted on composite insulator umbrella skirt surface, the high-molecular diaphragm is high-molecular organic material;B: while the high-molecular diaphragm and the composite insulator umbrella skirt are heated, so that the high-molecular diaphragm is stopped heating after molten state by Solid State Transformation;C: wait the high-molecular diaphragm natural cooling, after being changed into solid-state by molten state, open the high-molecular diaphragm;D: observing the high-molecular diaphragm, judge the surface of composite insulator whether dusting.Route suspended compound insulator provided by the invention surface dusting detection method removes pollution layer and dusting layer, the state for facilitating observation, judging surface of composite insulator by high-molecular diaphragm.

Description

A kind of route suspended compound insulator surface dusting detection method
Technical field
The present invention relates to transmission & distribution electro-technical fields, especially a kind of route suspended compound insulator surface dusting detection side Method.
Background technique
Meeting aging after overhead transmission line rod type suspended compound insulator longtime running, one of feature are surface dusting. Under high humidity environment, the Hydrophobicity of Composite Insulator of surface dusting is easy to lose, and antifouling work ability is substantially reduced, set to power transmission and transformation Standby safe operation brings hidden danger." nominal voltage is higher than 1000V exchange overhead transmission line with compound exhausted to standard DL/T 864-2004 Edge uses directive/guide " regulation, it is answered after surface of composite insulator dusting out of service.
Human eye observation, but composite insulator longtime running are relied primarily on for the judgement of surface of composite insulator dusting at present Rear surface contamination blackening, dusting layer are covered by pollution layer, and human eye observation will appear relatively large deviation, not accurate enough.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of route suspended compound insulator surface dusting detection methods, subtract Few influence of the surface filth layer to the state for judging composite insulator.
The present invention provides a kind of route suspended compound insulator surface dusting detection methods, include the following steps:
A: high-molecular diaphragm is pasted on composite insulator umbrella skirt surface, the high-molecular diaphragm is high-molecular organic material;
B: while the high-molecular diaphragm and the composite insulator umbrella skirt are heated, so that the high-molecular diaphragm is turned by solid-state Stop heating after becoming molten state;
C: after waiting the high-molecular diaphragm to be changed into solid-state by molten state, the high-molecular diaphragm is opened;
D: observing the high-molecular diaphragm, judge the surface of composite insulator whether dusting.
Further,
The high-molecular diaphragm includes following components: polymeric matrix, tackifier, filler and antioxidant;
The manufacturing method of the high-molecular diaphragm includes the following steps:
S1: each component of the high-molecular diaphragm is put into mixer and is blended;
S2: it is suppressed in press-forming machine;
S3: depanning after pressure maintaining is cooling.
Further,
The high-molecular diaphragm includes the component of following parts by weight: 60 ~ 75 parts of polymeric matrix, 32 ~ 38 parts of tackifier, 5 ~ 8 parts of filler and 0.5 ~ 0.9 part of antioxidant;
The manufacturing method of the high-molecular diaphragm includes the following steps:
S1: each component of the high-molecular diaphragm being put into mixer and is blended, and 12 ~ 18min of time is blended, and blending temperature is 140~158℃;
S2: suppressing in press-forming machine, and the pressing time is 6 ~ 18min, and press temperature is 120 ~ 140 DEG C;
S3: depanning after pressure maintaining is cooling;
In the step B, be heated to the high-molecular diaphragm and the composite insulator 100 ~ 135 DEG C and to continue 1.5 ~ 3.5min。
Further,
The high-molecular diaphragm includes the component of following parts by weight: 65 ~ 70 parts of polymeric matrix, 35 ~ 37 parts of tackifier, 6 ~ 7 parts of filler and 0.6 ~ 0.7 part of antioxidant;
The manufacturing method of the high-molecular diaphragm includes the following steps:
S1: each component of the high-molecular diaphragm being put into mixer and is blended, and 14 ~ 16min of time is blended, and blending temperature is 145~150℃;
S2: suppressing in press-forming machine, and the pressing time is 9 ~ 15min, and press temperature is 125 ~ 135 DEG C;
S3: depanning after pressure maintaining is cooling;
In the step B, the high-molecular diaphragm and the composite insulator are heated to 120 ~ 130 DEG C and continue 2 ~ 3min.
Further,
The high-molecular diaphragm includes the component of following parts by weight: 67 parts of polymeric matrix, 36 parts of tackifier, 6.5 parts Filler and 0.65 part of antioxidant;
The manufacturing method of the high-molecular diaphragm includes the following steps:
S1: each component of the high-molecular diaphragm being put into mixer and is blended, and time 15min, blending temperature 148 is blended ℃;
S2: suppressing in press-forming machine, pressing time 10min, and press temperature is 130 DEG C;
S3: depanning after pressure maintaining is cooling;
In the step B, the high-molecular diaphragm and the composite insulator are heated to 125 DEG C and continue 2.5min.
Further, in the step D, judge the surface of composite insulator whether the method for dusting: observe the height Whether molecule membrane surface is stained with silicon rubber dusting layer.
Further, the polymeric matrix are as follows: ethylene-vinyl acetate copolymer or thermoplastic polyurethane polymer, institute State tackifier are as follows: hydrogenation C5 Petropols or rosin glycerides, the filler are as follows: precipitated calcium carbonate or pitch, the antioxygen Agent are as follows: antioxidant 246 or antioxidant 1010.
Route suspended compound insulator provided by the invention surface dusting detection method is removed filthy by high-molecular diaphragm Layer and dusting layer, the state for facilitating observation, judging surface of composite insulator.
Detailed description of the invention
Fig. 1 is the flow chart of route suspended compound insulator of the present invention surface dusting detection method;
Fig. 2 is the test parameters table of verification test.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings and specific examples, so that those skilled in the art can be with It more fully understands the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
A kind of route suspended compound insulator surface dusting detection method, as shown in Figure 1, including the following steps:
A: high-molecular diaphragm is pasted on composite insulator umbrella skirt surface, the high-molecular diaphragm is high-molecular organic material;
B: while the high-molecular diaphragm and the composite insulator umbrella skirt are heated, so that the high-molecular diaphragm is turned by solid-state Stop heating after becoming molten state;
C: after waiting the high-molecular diaphragm to be changed into solid-state by molten state, it can be natural cooling, open the polymeric membrane Piece;
D: observing whether the high-molecular diaphragm surface is stained with silicon rubber dusting layer, whether judges the surface of composite insulator Dusting.
Surface of composite insulator pollution layer and dusting layer are a kind of polar groups, and the macromolecule containing polar group can be used Material adsorbs it.According to " similar to mix " criterion, in the environment of heating, the polar group of high molecular material is transported in heat It can be together with each other with filthy and dusting polar group under dynamic.It is solid-state under high-molecular diaphragm room temperature, places it in compound It is heated after insulator surface, high-molecular diaphragm becomes molten state, dunghill/atomized particles and high score from solid-state at a certain temperature Sub- diaphragm polar groups binding force is greater than the binding force of itself and silicone oil small molecule, stops heating polymeric membrane after temperature reduction Piece becomes solid-state from molten state, then dunghill/atomized particles are adsorbed in high-molecular diaphragm, to reach the mesh of dusting detection 's.
The present invention is not influenced the dusting detection of composite insulator by weather conditions, can solve due to composite insulator Surface filth layer covers the problem of caused eye-observation inaccuracy, does not cause to damage to composite insulator in detection process.Inspection Surveying work can implement at the scene, do not need a composite insulator and dismantle from shaft tower, easy to operate, greatly reduce compound inslation The working strength of son detection.
In one optional embodiment of the present embodiment, high-molecular diaphragm includes following components: polymeric matrix, tackifier, Filler and antioxidant, wherein tackifier are used to increase the adhesion strength of high-molecular diaphragm;The filler is for shortening solidification Time, and increase the intensity of the material;The antioxidant is used to prevent the aging of high-molecular diaphragm.The polymeric matrix Are as follows: ethylene-vinyl acetate copolymer or thermoplastic polyurethane polymer, the tackifier are as follows: hydrogenation C5 Petropols or rosin Glyceride, the filler are as follows: precipitated calcium carbonate or pitch, the antioxidant are as follows: antioxidant 246 or antioxidant 1010.It is described The manufacturing method of high-molecular diaphragm includes the following steps: S1: each component of the high-molecular diaphragm is put into mixer altogether It is mixed;S2: it is suppressed in press-forming machine;S3: depanning after pressure maintaining is cooling.
For the effect for verifying this case, verification test is made.
Test process:
The composite insulator for preparing 7 full filthy ginseng layers of surface covering and serious dusting, manufactures respectively according to the parameter in Fig. 2 Different high-molecular diaphragm out, and the pollution layer on composite insulator is removed under the corresponding conditions, according to high after the completion of test The amount of molecule diaphragm surface silicon rubber dusting layer scores, and the high-molecular diaphragm after the completion of the test of 60 following presentations is nonadherent silicon Rubber dusting layer can not judge the pulverized state of surface of composite insulator, after the completion of 60 tests indicated above by appearance High-molecular diaphragm is stained with silicon rubber dusting layer, and the pulverized state of surface of composite insulator, and number can be judged by appearance It is bigger to be worth the higher amount for indicating silicon rubber dusting layer, that is, more easily determining the pulverized state of surface of composite insulator.
As shown in Figure 2, according to the method for this case, observe, judge the state of surface of composite insulator with can be convenient.
The scope of protection of the present invention is not limited to this.Those skilled in the art are made equivalent on the basis of the present invention Substitution or transformation, it is within the scope of the present invention.Protection scope of the present invention is subject to claims.

Claims (7)

1. a kind of route suspended compound insulator surface dusting detection method, which comprises the steps of:
A: high-molecular diaphragm is pasted on composite insulator umbrella skirt surface, the high-molecular diaphragm is high-molecular organic material;
B: while the high-molecular diaphragm and the composite insulator umbrella skirt are heated, so that the high-molecular diaphragm is turned by solid-state Stop heating after becoming molten state;
C: after waiting the high-molecular diaphragm to be changed into solid-state by molten state, the high-molecular diaphragm is opened;
D: observing the high-molecular diaphragm, judge the surface of composite insulator whether dusting.
2. route suspended compound insulator described in claim 1 surface dusting detection method, which is characterized in that
The high-molecular diaphragm includes following components: polymeric matrix, tackifier, filler and antioxidant;
The manufacturing method of the high-molecular diaphragm includes the following steps:
S1: each component of the high-molecular diaphragm is put into mixer and is blended;
S2: it is suppressed in press-forming machine;
S3: depanning after pressure maintaining is cooling.
3. route suspended compound insulator as claimed in claim 2 surface dusting detection method, which is characterized in that
The high-molecular diaphragm includes the component of following parts by weight: 60 ~ 75 parts of polymeric matrix, 32 ~ 38 parts of tackifier, 5 ~ 8 parts of filler and 0.5 ~ 0.9 part of antioxidant;
The manufacturing method of the high-molecular diaphragm includes the following steps:
S1: each component of the high-molecular diaphragm being put into mixer and is blended, and 12 ~ 18min of time is blended, and blending temperature is 140~158℃;
S2: suppressing in press-forming machine, and the pressing time is 6 ~ 18min, and press temperature is 120 ~ 140 DEG C;
S3: depanning after pressure maintaining is cooling;
In the step B, be heated to the high-molecular diaphragm and the composite insulator 100 ~ 135 DEG C and to continue 1.5 ~ 3.5min。
4. route suspended compound insulator as claimed in claim 3 surface dusting detection method, which is characterized in that
The high-molecular diaphragm includes the component of following parts by weight: 65 ~ 70 parts of polymeric matrix, 35 ~ 37 parts of tackifier, 6 ~ 7 parts of filler and 0.6 ~ 0.7 part of antioxidant;
The manufacturing method of the high-molecular diaphragm includes the following steps:
S1: each component of the high-molecular diaphragm being put into mixer and is blended, and 14 ~ 16min of time is blended, and blending temperature is 145~150℃;
S2: suppressing in press-forming machine, and the pressing time is 9 ~ 15min, and press temperature is 125 ~ 135 DEG C;
S3: depanning after pressure maintaining is cooling;
In the step B, the high-molecular diaphragm and the composite insulator are heated to 120 ~ 130 DEG C and continue 2 ~ 3min.
5. route suspended compound insulator as claimed in claim 4 surface dusting detection method, which is characterized in that
The high-molecular diaphragm includes the component of following parts by weight: 67 parts of polymeric matrix, 36 parts of tackifier, 6.5 parts Filler and 0.65 part of antioxidant;
The manufacturing method of the high-molecular diaphragm includes the following steps:
S1: each component of the high-molecular diaphragm being put into mixer and is blended, and time 15min, blending temperature 148 is blended ℃;
S2: suppressing in press-forming machine, pressing time 10min, and press temperature is 130 DEG C;
S3: depanning after pressure maintaining is cooling;
In the step B, the high-molecular diaphragm and the composite insulator are heated to 125 DEG C and continue 2.5min.
6. route suspended compound insulator described in claim 1 surface dusting detection method, which is characterized in that the step D In, judge the surface of composite insulator whether the method for dusting: observe whether the high-molecular diaphragm surface is stained with silicon rubber Rubber powder layer.
7. any route suspended compound insulator surface dusting detection method of claim 2 ~ 5, which is characterized in that described Polymeric matrix are as follows: ethylene-vinyl acetate copolymer or thermoplastic polyurethane polymer, the tackifier are as follows: hydrogenation C5 petroleum Resin or rosin glycerides, the filler are as follows: precipitated calcium carbonate or pitch, the antioxidant are as follows: antioxidant 246 or antioxidant 1010。
CN201811455237.3A 2018-11-30 2018-11-30 A kind of route suspended compound insulator surface dusting detection method Pending CN109374516A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114034632A (en) * 2021-11-18 2022-02-11 广东电网有限责任公司广州供电局 Method for measuring aging degree of silicon rubber material

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JPH02226057A (en) * 1989-02-27 1990-09-07 Ngk Insulators Ltd Measurement of amount of dirt in insulator
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US20180100804A1 (en) * 2016-01-15 2018-04-12 Graduate School At Shenzhen, Tsinghua University Method for inspecting aging state of silicone rubber composite insulating material
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US20100080261A1 (en) * 2008-09-29 2010-04-01 Korea Electric Power Corporation Simulation test system for thermal impact ageing of power transmission insulator
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114034632A (en) * 2021-11-18 2022-02-11 广东电网有限责任公司广州供电局 Method for measuring aging degree of silicon rubber material
CN114034632B (en) * 2021-11-18 2024-02-27 广东电网有限责任公司广州供电局 Method for measuring ageing degree of silicone rubber material

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