CN103121021B - 500 KV double-post-insulator electrification water washing method - Google Patents
500 KV double-post-insulator electrification water washing method Download PDFInfo
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- CN103121021B CN103121021B CN201310073428.4A CN201310073428A CN103121021B CN 103121021 B CN103121021 B CN 103121021B CN 201310073428 A CN201310073428 A CN 201310073428A CN 103121021 B CN103121021 B CN 103121021B
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Abstract
The invention provides a 500 KV double-post-insulator electrification water washing method. The method comprises the steps of arranging five hydraulic monitors around a 500 KV double-post-insulator and setting length of washing water columns of the hydraulic monitors to be not less than 5 m, wherein two hydraulic monitors are arranged around a small-post-insulator and the included angle between the two hydraulic monitors is 160 degrees, three hydraulic monitors are arranged around a big-post-insulator, two of the three hydraulic monitors and the two hydraulic monitors arranged around the small-post-insulator are side by side, and the include angle between each of the two of the three hydraulic monitors and a third hydraulic monitor is 100 degrees; and washing the small-post-insulator and the big-post-insulator with a method of synchronous washing with the five hydraulic monitors, wherein the washing is carried out with a method of one washing with three returning and uniform sweeping back. According to the 500 KV double-post-insulator electrification water washing method, the leakage current on the surface of the double-post-insulator is small during washing, probability of occurrence of pollution flashover is low, safety is high, filthy dead angles do not exist after the washing, washing is complete, and washing efficiency is high.
Description
Technical field
The present invention relates to high-tension transformation equipment Anti-pollution Flashover, particularly relate to the insulator charged water flushing method of a kind of 500KV twin props.
Background technology
500KV converting equipment is chronically exposed in atmospheric environment, the insulator of on-line operation, is subject to the impact of the environmental factor such as industrial emissions and natural airborne dust, and surface can deposit one deck dunghill gradually.These contain dunghill when running into wet weather of salt, acid, alkaline components, can form the moisture film of one deck conduction, cause its electrical conductivity to increase at insulator surface, insulating properties reduce, leakage current sharply increases, and produces local arc, even may develop into pollution flashover.Therefore the filthy cleaning regularly carrying out 500KV converting equipment insulator surface is the important measures preventing pollution flashover accident from occurring.
At present, the filthy cleaning of 500KV converting equipment mainly adopts the cleaning that manually has a power failure, because needs carry out power failure operation, this brings inconvenience greatly and huge economic loss to power supply department and user, and living water washing operation is a kind of well solution.
Because the operation of 500KV converting equipment living water washing does not also have clear and definite technical specification, be thus badly in need of from the viewpoint of the effective living water washing method of safety and developing result etc. of rinsing to instruct carrying out of 500KV converting equipment living water washing operation.Wherein, twin props insulator is one of capital equipment carrying out living water washing in 500KV transformer station, is also the more special equipment of a class, and the present invention is summed up by lot of experiments and a kind of low the and method that developing result is good of probability of flashover occurs.
Be in the patent document of 201210262863.7 in Chinese Patent Application No., disclose " a kind of 500kV support insulator living water washing method and equipment thereof ", its scheme for be 500KV one-mast support insulator, and for 500KV twin props insulator, by small one and large one two one-mast support insulators and vertical structure form.According to four rifles, 90 ° of angles, then two insulator surface leakage currents are large, and produce pollution flashover probability high, security is low, and flushing process easily can leave dead angle, and flush efficiency is lower, effect is poor.
Summary of the invention
Based on this, be necessary to provide for the flushing of 500KV twin props insulator that a kind of security is higher, the insulator charged water flushing method of 500KV twin props of better effects if.
The insulator charged water flushing method of a kind of 500KV twin props, comprises the steps:
Five giants are arranged in around 500KV twin props insulator by step one, and the length arranging described giant flushing water column is not less than 5m; Wherein, little support insulator arranges two giants, and the angle of two giants is 160 °, and large support insulator arranges three giants, wherein two giants of two giants and little pillar are existed side by side, and are 100 ° with the angle of the 3rd giant;
Step 2, is utilized described five giants and is rinsed described little support insulator and large support insulator by synchronous developing mode; Wherein, the mode adopting a punching to add even flyback for three times in flushing process is rinsed.
The insulator charged water flushing method of above-mentioned 500KV twin props, based on the consideration of the security standpoint to flushing position, flush efficiency, effect, adopt five giants, and more rational angle is set for it, adopt the mode that five rifles are synchronous, a punching adds even flyback for three times to rinse to twin props insulator, in flushing process, twin props insulator surface leakage current is little, generation pollution flashover probability low-security is high, does not leave filthy dead angle after flushing, rinse well, flush efficiency is high.
Accompanying drawing explanation
Fig. 1 is the front view that five giants are arranged in around twin props insulator;
Fig. 2 is the top view that five giants are arranged in around twin props insulator;
Fig. 3 is that one of an embodiment rushes the living water washing program schematic diagram adding even flyback for three times.
Detailed description of the invention
Be described in detail below in conjunction with the detailed description of the invention of accompanying drawing to the insulator charged water flushing method of 500KV twin props of the present invention.
The insulator charged water flushing method of 500KV twin props of the present invention, comprises the steps:
Five giants are arranged in around 500KV twin props insulator by step one, and the length arranging described giant flushing water column is not less than 5m.
Wherein, little support insulator arranges two giants, and the angle of two giants is 160 °, and large support insulator arranges three giants, wherein two giants of two giants and little pillar are existed side by side, and are 100 ° with the angle of the 3rd giant.
Shown in Fig. 1,2, Fig. 1 is the front view that five giants are arranged in around twin props insulator, and Fig. 2 is the top view that five giants are arranged in around twin props insulator; As can be seen from the figure, little support insulator 07 arranges two giants 04,05, the angle of two giants is 160 °, large support insulator 06 arranges three giants 01,02,03, two giants 04,05 of giant 02,03 and little pillar are existed side by side, and are 100 ° with the angle of the 3rd giant 01.
Preferably, described each giant adopts 8-10mm nozzle, and outlet pressure of monitor scope is 0.5-1.5Mpa.
Step 2, is utilized described five giants and is rinsed described little support insulator and large support insulator by synchronous developing mode; Wherein, in flushing process, adopt a punching to add the mode that even flyback returns for three times to rinse.
In one embodiment, as shown in Figure 3, Fig. 3 is that one of an embodiment rushes the living water washing program schematic diagram adding even flyback for three times; In figure, intensive arrow section at least rinses 2s, and non-dense set arrow section at least rinses 1s, and whole twin props insulator is to Shaochong 27s; Particularly, described flushing process comprises the steps:
Step S101, rinse from the bottom of rinsed insulator toward 1/3rd, from the bottom to top, giant swings, and slowly rise on one side, washing time is at least 2s;
Step S102, from 1/3rd fast retrace of rinsed insulator to insulator, washing time is at least 1s;
Step S103, rinses from the bottom of rinsed insulator toward 2/3rds, and the time of rinsing to 1/3rd places is at least 1s, and when behind flushing 2/1 to three/3rds place, giant swings, and slowly rise in one side, washing time is at least 2s;
Step S104, from 2/3rds flybacks of rinsed insulator to insulator, washing time is at least 2s;
Step S105, rinses from the bottom of rinsed insulator toward top, and the time of rinsing to 2/3rds places is at least 2s, and when flushing three/bis-to top, giant swings, and slowly rise on one side, washing time is at least 2s;
Step S106, from the top flyback of rinsed insulator to bottom, washing time is at least 3s;
Step S107, rinse from the bottom of rinsed insulator toward top, washing time is at least 3s;
Step S108, from even flyback to three/bis-in the top of rinsed insulator, washing time is at least 1s;
Step S109, rinse from 2/3rds of rinsed insulator toward top, washing time is at least 1s;
Step S110, from even flyback to three/mono-in the top of rinsed insulator, washing time is at least 2s;
Step S111, rinse from 1/3rd of rinsed insulator toward top, washing time is at least 2s;
Step S112, from the even flyback in the top of rinsed insulator to bottom, washing time is at least 3s.
The flushing flow process of above-described embodiment, the job safety in the insulator charged water flushing process of 500KV twin props can be ensured, do not stay filthy dead angle, leakage current amplitude is little, and the probability that filthy flushing flashover occurs is low, and after rinsing, the insulating properties of insulator improve, by the quantification to washing time, improve the flush efficiency of living water washing, add even flyback after a punching three times, the insulator effect more serious for pollution level is better.
For the various embodiments described above, in flushing process, when flushing part account for be rinsed insulator height more than 2/3 and top there is local arc time, the water column of giant is sprayed to described local arc, until arc extinction.Further, when starting to rinse, if the top being rinsed insulator produces local arc, then stop flushing operation.
The insulator charged water flushing method of 500KV twin props of the present invention, provides a kind of without the need to carrying out power failure cleaning, the living water washing method that can carry out; The purging method that twin props insulator surface leakage current is little in flushing process, generation pollution flashover probability is low, improves the security reliability of flushing process; Can solve well occur in existing douching technique leave filthy dead angle, punching do not wash clean, the problems such as flush efficiency is low.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (6)
1. the insulator charged water flushing method of 500KV twin props, is characterized in that, comprise the steps:
Five giants are arranged in around 500KV twin props insulator by step one, and the length arranging described giant flushing water column is not less than 5m; Wherein, little support insulator arranges two giants, and the angle of two giants is 160 °, and large support insulator arranges three giants, wherein two giants of two giants and little pillar are existed side by side, and are 100 ° with the angle of the 3rd giant;
Step 2, is utilized described five giants and is rinsed described little support insulator and large support insulator by synchronous developing mode; Wherein, the mode adopting a punching to add even flyback for three times in flushing process is rinsed.
2. the insulator charged water flushing method of 500KV twin props according to claim 1, is characterized in that, the flushing process adopting a punching to add even flyback for three times in described step 2 comprises:
Step S101, rinse from the bottom of rinsed insulator toward 1/3rd, from the bottom to top, giant swings, and slowly rise on one side, washing time is at least 2s;
Step S102, from 1/3rd fast retrace of rinsed insulator to insulator, washing time is at least 1s;
Step S103, rinses from the bottom of rinsed insulator toward 2/3rds, and the time of rinsing to 1/3rd places is at least 1s, and when behind flushing 2/1 to three/3rds place, giant swings, and slowly rise in one side, washing time is at least 2s;
Step S104, from 2/3rds flybacks of rinsed insulator to insulator, washing time is at least 2s;
Step S105, rinses from the bottom of rinsed insulator toward top, and the time of rinsing to 2/3rds places is at least 2s, and when flushing three/bis-to top, giant swings, and slowly rise on one side, washing time is at least 2s;
Step S106, from the top flyback of rinsed insulator to bottom, washing time is at least 3s;
Step S107, rinse from the bottom of rinsed insulator toward top, washing time is at least 3s;
Step S108, from even flyback to three/bis-in the top of rinsed insulator, washing time is at least 1s;
Step S109, rinse from 2/3rds of rinsed insulator toward top, washing time is at least 1s;
Step S110, from even flyback to three/mono-in the top of rinsed insulator, washing time is at least 2s;
Step S111, rinse from 1/3rd of rinsed insulator toward top, washing time is at least 2s;
Step S112, from the even flyback in the top of rinsed insulator to bottom, washing time is at least 3s.
3. the insulator charged water flushing method of 500KV twin props according to claim 2, it is characterized in that, in flushing process in described step 2, flushing part account for be rinsed insulator height more than 2/3 and top there is local arc time, the water column of giant is sprayed to described local arc, until arc extinction.
4. the insulator charged water flushing method of 500KV twin props according to claim 2, is characterized in that, in the flushing process in described step 2, when starting to rinse, if the top being rinsed insulator produces local arc, then stops flushing operation.
5. the insulator charged water flushing method of 500KV twin props according to claim 1, is characterized in that, described giant adopts 8-10mm nozzle.
6. the insulator charged water flushing method of 500KV twin props according to claim 1, is characterized in that, described giant inlet pressure ranges is 0.5-1.5Mpa.
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| CN201310073428.4A CN103121021B (en) | 2013-03-07 | 2013-03-07 | 500 KV double-post-insulator electrification water washing method |
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| CN201310073428.4A CN103121021B (en) | 2013-03-07 | 2013-03-07 | 500 KV double-post-insulator electrification water washing method |
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| CN103121021B true CN103121021B (en) | 2015-04-22 |
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| CN105562382B (en) * | 2014-10-14 | 2018-09-18 | 山西晋缘电力化学清洗中心有限公司 | A kind of living water washing method of strain insulator string |
| CN105562381A (en) * | 2014-10-14 | 2016-05-11 | 山西晋缘电力化学清洗中心有限公司 | Live washing method for suspension insulator string and washing device |
| CN104998856B (en) * | 2015-07-31 | 2018-12-28 | 中国能源建设集团广东火电工程有限公司 | A kind of electrified water flusher and method |
| CN107971267B (en) * | 2017-06-19 | 2020-06-09 | 国网智能科技股份有限公司 | Support type auxiliary flushing device and method thereof |
| CN112222056B (en) * | 2020-08-17 | 2022-02-22 | 云南电网有限责任公司曲靖供电局 | Live water washing operation method |
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| JP3244988B2 (en) * | 1995-02-10 | 2002-01-07 | 日本碍子株式会社 | Insulator cleaning method and insulator cleaning device |
| CN101337229B (en) * | 2008-08-11 | 2011-07-20 | 张平安 | Electric insulation cleaning method of high-pressure electric power apparatus |
| CN102773226B (en) * | 2012-07-27 | 2015-08-19 | 武汉大学 | A kind of 500kV support insulator living water washing method |
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Address after: 528000 No. 1 South Fenjiang Road, Chancheng District, Guangdong, Foshan Co-patentee after: Guangdong Weiheng Electric Power Technology Development Co., Ltd. Patentee after: FOSHAN POWER SUPPLY BUREAU OF GUANGDONG POWER GRID CORPORATION Co-patentee after: WuHan University Address before: 528000 No. 1 South Fenjiang Road, Chancheng District, Guangdong, Foshan Co-patentee before: Guangdong Weiheng Electric Power Technology Development Co., Ltd. Patentee before: Foshan Power Supply Bureau, Guangdong Power Grid Corporation Co-patentee before: WuHan University |
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Effective date of registration: 20191030 Address after: 528000 No. 1 South Fenjiang Road, Chancheng District, Guangdong, Foshan Co-patentee after: Guangdong Weiheng Power Transmission and Distribution Co., Ltd. Patentee after: FOSHAN POWER SUPPLY BUREAU OF GUANGDONG POWER GRID CORPORATION Co-patentee after: WuHan University Address before: 528000 No. 1 South Fenjiang Road, Chancheng District, Guangdong, Foshan Co-patentee before: Guangdong Weiheng Electric Power Technology Development Co., Ltd. Patentee before: FOSHAN POWER SUPPLY BUREAU OF GUANGDONG POWER GRID CORPORATION Co-patentee before: WuHan University |
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