CN103121021A - 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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- CN103121021A CN103121021A CN2013100734284A CN201310073428A CN103121021A CN 103121021 A CN103121021 A CN 103121021A CN 2013100734284 A CN2013100734284 A CN 2013100734284A CN 201310073428 A CN201310073428 A CN 201310073428A CN 103121021 A CN103121021 A CN 103121021A
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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 the 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 long term exposure is in atmospheric environment, and the insulator of on-line operation is subject to the impact of the environmental factors such as industrial emissions and natural airborne dust, and the surface can deposit one deck dunghill gradually.When these dunghills that contain salt, acid, alkaline components run into wet weather, can form the moisture film of one deck conduction at insulator surface, cause its electrical conductivity to increase, insulating properties reduce, leakage current sharply increases, and produces local arc, even may develop into pollution flashover.Therefore the filthy cleaning of regularly carrying out 500KV converting equipment insulator surface is the important measures that prevent that pollution flashover accident from occuring.
At present, artificial power failure cleaning is mainly adopted in the filthy cleaning of 500KV converting equipment, because needs carry out power failure operation, this has brought great inconvenience and huge economic loss for power supply department and user, and the living water washing operation is a kind of good solution.
Because the operation of 500KV converting equipment living water washing does not also have clear and definite technical specification, thereby be badly in need of instructing carrying out of 500KV converting equipment living water washing operation from rinsing the effective living water washing method of considering the aspects such as safety and developing result.Wherein, the twin props insulator is to carry out one of capital equipment of living water washing in 500KV transformer station, is also the more special equipment of a class, and the present invention sums up a method that the speciogenesis probability of flashover is low and developing result is good by lot of experiments.
In Chinese patent application number is 201210262863.7 patent document, " a kind of 500kV support insulator living water washing method and equipment thereof " is disclosed, its scheme for be 500KV one-mast support insulator, and for 500KV twin props insulator, formed by small one and large one two one-mast support insulators and vertical structure.If adopt 90 ° of angles of four rifles, two to thoroughly do away with edge sub-surface leakage currents large, produces the pollution flashover probability high, and security is low, and flushing process easily can leave the dead angle, and flush efficiency is lower, effect is relatively poor.
Summary of the invention
Based on this, be necessary that flushing for 500KV twin props insulator provides 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:
Step 1 is arranged in five giants around 500KV twin props insulator, the length that described giant rinses water column is set 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 of two giants and little pillar giants are existed side by side, and with the angle of the 3rd giant be 100 °;
Step 2 is utilized described five giants and by the synchronous developing mode, described little support insulator and large support insulator is rinsed; Wherein, the mode that adopts 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 security standpoint, flush efficiency, the consideration of the result to the flushing position, adopt five giants, and for it, more rational angle is set, mode synchronous to twin props insulator employing five rifles, that a punching adds even flyback for three times is rinsed, and 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.
Description of drawings
Fig. 1 is that five giants are arranged in twin props insulator front view on every side;
Fig. 2 is that five giants are arranged in twin props insulator top view on every side;
Fig. 3 is the living water washing program schematic diagram that the punching of an embodiment adds even flyback for three times.
The specific embodiment
Be described in detail below in conjunction with the specific embodiment 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:
Step 1 is arranged in five giants around 500KV twin props insulator, the length that described giant rinses water column is set 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 of two giants and little pillar giants are existed side by side, and with the angle of the 3rd giant be 100 °.
Shown in Fig. 1,2, Fig. 1 is that five giants are arranged in twin props insulator front view on every side, and Fig. 2 is that five giants are arranged in twin props insulator top view on every side; 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, giant 02,03 and two giants 04,05 of little pillar exist side by side, and with the angle of the 3rd giant 01 be 100 °.
Preferably, described each giant adopts the 8-10mm nozzle, and the outlet pressure of monitor scope is 0.5-1.5Mpa.
Step 2 is utilized described five giants and by the synchronous developing mode, described little support insulator and large support insulator is rinsed; Wherein, adopting a punching to add the mode that even flyback returns for three times in flushing process rinses.
In one embodiment, as shown in Figure 3, Fig. 3 is the living water washing program schematic diagram that the punching of an embodiment adds even flyback for three times; In figure, intensive arrow section is rinsed 2s at least, and non-dense set arrow section is rinsed 1s at least, and whole twin props insulator is to Shaochong 27s; Particularly, described flushing process comprises the steps:
Step S101 rinses from the bottom past 1/3rd of flushing insulator, and from the bottom to top, on one side giant swings, Yi Bian rising, washing time is at least 2s;
Step S102, the bottom from 1/3rd quick flybacks of flushing insulator to insulator, washing time is at least 1s;
Step S103 rinses from the bottom past 2/3rds of flushing insulator, and flushing to the time at 1/3rd places is at least 1s, and after rinsing 1/3rd to 2/3rds places, on one side giant swings, Yi Bian rising, washing time is at least 2s;
Step S104, the bottom from 2/3rds flybacks of flushing insulator to insulator, washing time is at least 2s;
Step S105 rinses from the bottom of flushing insulator toward the top, rinses to the time at 2/3rds places and is at least 2s, and when rinsing 2/3rds during to the top, on one side giant swings, Yi Bian rising, washing time is at least 2s;
Step S106, from the top flyback of flushing insulator to the bottom, washing time is at least 3s;
Step S107 rinses toward the top from the bottom of flushing insulator, and washing time is at least 3s;
Step S108, the even flyback to three from the top of flushing insulator/two, washing time is at least 1s;
Step S109 rinses toward the top from 2/3rds of flushing insulator, and washing time is at least 1s;
Step S110, the even flyback to three from the top of flushing insulator/one, washing time is at least 2s;
Step S111 rinses toward the top from 1/3rd of flushing insulator, and washing time is at least 2s;
Step S112, from the even flyback in the top of flushing insulator to the bottom, washing time is at least 3s.
The flushing flow process of above-described embodiment, can guarantee the job safety in the insulator charged water flushing process of 500KV twin props, do not stay filthy dead angle, the 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, added even flyback after a punching three times, better for the insulator effect that pollution level is more serious.
For the various embodiments described above, in flushing process, when rinsing part when accounting for more than the 2/3 and top that is rinsed the insulator height and local arc occurring, the water column of giant is sprayed to described local arc, until arc extinction.Further, when beginning to rinse, produce local arc if be rinsed the top of insulator, stop flushing operation.
The insulator charged water flushing method of 500KV twin props of the present invention provides a kind of cleaning that need not to have a power failure, the living water washing method that can carry out; In flushing process twin props insulator surface leakage current little, the low purging method of pollution flashover probability occurs, improved the security reliability of flushing process; Can solve well occur in existing douching technique leave filthy dead angle, rinse unclean, the problem such as flush efficiency is low.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.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, comprises the steps:
Step 1 is arranged in five giants around 500KV twin props insulator, the length that described giant rinses water column is set 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 of two giants and little pillar giants are existed side by side, and with the angle of the 3rd giant be 100 °;
Step 2 is utilized described five giants and by the synchronous developing mode, described little support insulator and large support insulator is rinsed; Wherein, the mode that adopts 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 that adopts a punching to add even flyback for three times in described step 2 comprises:
Step S101 rinses from the bottom past 1/3rd of flushing insulator, and from the bottom to top, on one side giant swings, Yi Bian rising, washing time is at least 2s;
Step S102, the bottom from 1/3rd quick flybacks of flushing insulator to insulator, washing time is at least 1s;
Step S103 rinses from the bottom past 2/3rds of flushing insulator, and flushing to the time at 1/3rd places is at least 1s, and after rinsing 1/3rd to 2/3rds places, on one side giant swings, Yi Bian rising, washing time is at least 2s;
Step S104, the bottom from 2/3rds flybacks of flushing insulator to insulator, washing time is at least 2s;
Step S105 rinses from the bottom of flushing insulator toward the top, rinses to the time at 2/3rds places and is at least 2s, and when rinsing 2/3rds during to the top, on one side giant swings, Yi Bian rising, washing time is at least 2s;
Step S106, from the top flyback of flushing insulator to the bottom, washing time is at least 3s;
Step S107 rinses toward the top from the bottom of flushing insulator, and washing time is at least 3s;
Step S108, the even flyback to three from the top of flushing insulator/two, washing time is at least 1s;
Step S109 rinses toward the top from 2/3rds of flushing insulator, and washing time is at least 1s;
Step S110, the even flyback to three from the top of flushing insulator/one, washing time is at least 2s;
Step S111 rinses toward the top from 1/3rd of flushing insulator, and washing time is at least 2s;
Step S112, from the even flyback in the top of flushing insulator to the 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, rinsing part when accounting for more than the 2/3 and top that is rinsed the insulator height and local arc occurring, 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 beginning to rinse, produces local arc if be rinsed the top of insulator, 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 the 8-10mm nozzle.
6. the insulator charged water flushing method of 500KV twin props according to claim 1, is characterized in that, described giant outlet pressure scope 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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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104998856A (en) * | 2015-07-31 | 2015-10-28 | 中国能源建设集团广东火电工程有限公司 | Electrified water washing device and method |
| 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 |
| CN105562382A (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 strain insulator string |
| CN107971267A (en) * | 2017-06-19 | 2018-05-01 | 山东鲁能智能技术有限公司 | A kind of pedestal auxiliary flusher and its method |
| CN112222056A (en) * | 2020-08-17 | 2021-01-15 | 云南电网有限责任公司曲靖供电局 | Live water washing operation method |
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| JPH08222058A (en) * | 1995-02-10 | 1996-08-30 | Ngk Insulators Ltd | Insulator washing method, and insulator washing device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105562382A (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 strain insulator string |
| CN104998856A (en) * | 2015-07-31 | 2015-10-28 | 中国能源建设集团广东火电工程有限公司 | Electrified water washing device and method |
| CN107971267A (en) * | 2017-06-19 | 2018-05-01 | 山东鲁能智能技术有限公司 | A kind of pedestal auxiliary flusher and its 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 |
| CN112222056A (en) * | 2020-08-17 | 2021-01-15 | 云南电网有限责任公司曲靖供电局 | Live water washing operation method |
| 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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| CN103121021B (en) | 2015-04-22 |
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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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