CN104977432B - Long-string insulator wet practice impact test water injector and its application - Google Patents
Long-string insulator wet practice impact test water injector and its application Download PDFInfo
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- CN104977432B CN104977432B CN201410146737.4A CN201410146737A CN104977432B CN 104977432 B CN104977432 B CN 104977432B CN 201410146737 A CN201410146737 A CN 201410146737A CN 104977432 B CN104977432 B CN 104977432B
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Abstract
The present invention relates to long-string insulator wet practice impact test water injector and its applications, the water injector includes the hose and water yield control system of spray head, jet nozzle, connection spray head and extraneous water route, the jet nozzle includes pedestal and the insulation column that is vertically mounted on the pedestal, the insulation column is containing cylinder and a plurality of umbrella bodies being molded on the cylinder, the equidistant a plurality of spray heads of installation, the distance between adjacent spray head are 0.4-0.6 meters along the vertical direction on the insulation column.The application is: above-mentioned water injector being used for long-string insulator wet practice impact test, the jet nozzle of water injector is arranged at 4 meters of long-string insulator test product.The present invention not only can guarantee that water spray angle and amount of water sprayed meet standard requirements, but also can guarantee electric insulation, and the rain that can be used for ultra-high-voltage post insulator dodges and dirty rain dodges experimental study.
Description
Technical field
It is wet more specifically to long-string insulator the present invention relates to the test of high-tension insulator switching impulse withstanding voltage
Switching impulse test water injector and its application.
Background technique
Developing UHV transmission is the important measure in China's electric power development history, for realizing larger range of resource optimization
The Efficient Development of configuration and promotion China's energy, which utilizes, to be of great significance.China is completed a plurality of 1000kV extra-high-voltage alternating current
Power transmission engineering and ± 800kV extra-high voltage direct-current transmission engineering.Currently, China is building silk screen-southern Jiangsu and waxy common wheat-Guangdong two
Item extra-high voltage ± 800kV DC transmission engineering.It, will also by the multinomial extra-high voltage AC and DC engineering of planning construction during " 12th Five-Year Plan "
It is greatly facilitated " transferring electricity from the west to the east " ability.
With the raising of voltage class, insulator chain length is continuously increased, and needs the insulator test product that R and D are new.Absolutely
The wet practice impulse voltage test of edge is the important tests of Insulators Used detection.It is using short string in previous detection
Test product (string is long to be generally less than 5 meters) carries out correlation test, and test difficulty is little, carries out smooth.It is full-scale for extra-high voltage at present
Insulator test product (general UHV Long Insulator String is long to be greater than 8 meters) carries out wet practice impulse voltage test, since insulator chain is long
It is longer, this requires to should be greater than insulator chain long for the insulation distance of traditional water injector and insulator, otherwise it be easy to cause height
Pressure side discharges to water injector, and does not have the effect of detection insulator electric property.But when water injector is long apart from insulator
When spending longer, the water of ejection is unable to satisfy the water drenching angle of insulator wet test requirement.Therefore, using traditional water injector without
The wet practice impulse voltage test of method completion extra-high voltage long-string insulator.
Summary of the invention
The object of the present invention is to provide a kind of long-string insulator wet practice impact test water injector and its application, the sprays
Water installations not only can guarantee that water spray angle and amount of water sprayed meet standard requirements, but also can guarantee electric insulation.
The technical solution adopted by the invention is as follows:
A kind of long-string insulator wet practice impact test water injector, including spray head, jet nozzle, connection spray head and the external world
The hose and water yield control system in water route, the jet nozzle include pedestal and the insulation branch that is vertically mounted on the pedestal
Column, the insulation column is containing cylinder and a plurality of umbrella bodies for being molded on the cylinder, on the insulation column along the vertical direction etc.
Distance installs a plurality of spray heads, and the distance between adjacent spray head is 0.4-0.6 meters.
In above-mentioned long-string insulator wet practice impact test water injector, it is preferable that the height of the insulation column
Degree is 10-15 meters, and the distance of nethermost spray head to the pedestal is 5-7 meters.
In above-mentioned long-string insulator wet practice impact test water injector, it is preferable that the umbrella of the insulation column
Spacing is 85 millimeters -100 millimeters, and it is 80 millimeters -90 millimeters that umbrella, which stretches out,.
In above-mentioned long-string insulator wet practice impact test water injector, it is preferable that the insulation column is by multiple
The several sections of detachably connected compositions of insulating sublayer pillar.
In above-mentioned long-string insulator wet practice impact test water injector, it is preferable that the pedestal of the jet nozzle
In cross, terminal pad is arranged in the center of cross pedestal, and the insulation column is mounted on the jet nozzle by the terminal pad
Pedestal on.
In above-mentioned long-string insulator wet practice impact test water injector, it is preferable that the nozzle is spatially bored
Structure.
A kind of long-string insulator wet practice impact test method, the test method is using water spray described in above-mentioned any one
Device sprays water to long-string insulator test product, and the jet nozzle of water injector is arranged at 4 meters of long-string insulator test product.
In above-mentioned long-string insulator wet practice impact test method, it is preferable that long-string insulator test product is 10 meters
UHV Long Insulator String.
The invention has the following advantages that
Due to using the jet nozzle of above structure, so that water injector has preferable insulation performance, therefore can be close
Distance, which sprays water to long-string insulator test product, discharges to water injector without will cause high-voltage end, therefore the water injector is applied to
Long-string insulator wet practice impact test not only can guarantee that water spray angle and amount of water sprayed meet standard requirements, but also can guarantee electrical
Insulation, the rain that can be used for ultra-high-voltage post insulator dodges and dirty rain dodges experimental study.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of an embodiment water injector；
Fig. 2 is the enlarged drawing in the portion A in Fig. 1.
Specific embodiment
The present invention is described further with reference to the accompanying drawings and examples.
As illustrated in fig. 1 and 2, the present embodiment long-string insulator wet practice impact test water injector includes: spray head 1, spray
Head frame 2, the hose 3 and water yield control system 4 of connection spray head 1 and extraneous water route.
Jet nozzle 2 includes pedestal 21 and the insulation column 22 being vertically mounted on the pedestal 21.
Pedestal 21 is in cross, and You Lianggen I-steel intersects 90 ° of compositions, and every I-steel length is 10m, cross pedestal
Center weld diameter be 30cm disk (terminal pad) 211, insulation column 22 is mounted on pedestal 21 by the disk 211.
Pedestal 21 is used to support insulation column 22, and construction and shape are not limited to above description.
Insulation column 22 is made of six knot insulation columns, is successively installed, is fixed from bottom to top with screw means, insulation branch
The high 13m of 22 vertical direction of column.A spray head 1 is installed every 0.5m in the position of 22 vertical direction 6m-13m of insulation column, i.e., most lower
The distance of the spray head in face to pedestal 21 is 6 meters.In some embodiments, the length of insulation column 22 is also designed to 10-15
Rice, the distance of nethermost spray head to the pedestal 21 are also designed to 5-7 meters, and the distance between adjacent spray head can also be set
It is calculated as 0.4-0.6 meters.
Insulation column 22 is containing cylinder 221 and a plurality of umbrella bodies 222 being molded on the cylinder 221, umbrella spacing (i.e. adjacent two
The distance between a umbrella body 222) it is 85 millimeters, it is 80 millimeters that umbrella, which stretches out (i.e. along the distance for arriving outer in umbrella body 222),.Some realities
Apply in example, the umbrella spacing of the insulation column is also designed to 85 millimeters -100 millimeters, umbrella stretching can be designed as 80 millimeters -
90 millimeters.
The spatially wimble structure of nozzle 1.Nozzle 1 can also be using various used in existing insulator wet practice impact test
Nozzle.Water yield control system 4 can use existing water quantity controller.
Above-mentioned jet nozzle 2 makes this water injector have preferable insulation performance, therefore can be closely to long string insulation
Sub- test product water spray discharges to water injector without will cause high-voltage end, therefore the water injector is applied to the wet behaviour of long-string insulator
Make impact test, not only can guarantee that water spray angle and amount of water sprayed meet standard requirements, but also can guarantee electric insulation, can be used for extra-high
It presses the rain of support insulator to dodge and dodges experimental study with dirty rain.
It is carried out in long-string insulator wet practice impact test using above-mentioned water injector, the jet nozzle 2 of water injector can
To be arranged at 4 meters of long-string insulator test product.It can be used in carrying out wet practice impact to 10 meters of UHV Long Insulator String
Test.
Claims (2)
1. a kind of long-string insulator wet practice impact test water injector, for the long extra-high voltage insulator for being greater than 8 meters of string
String carries out wet practice impact test, and the water injector includes the soft of spray head (1), jet nozzle (2), connection spray head and extraneous water route
Manage (3) and water yield control system (4), it is characterised in that: the jet nozzle (2) includes pedestal (21) and is vertically mounted to
Insulation column (22) on the pedestal (21), the insulation column (22) is containing plural number cylinder (221) and be molded on the cylinder
A umbrella body (222), equidistant a plurality of spray heads (1) of installation along the vertical direction on the insulation column (22), between adjacent spray head
Distance be 0.4-0.6 meters；The height of the insulation column (22) is 10-15 meters, nethermost spray head to the pedestal (21)
Distance be 5-7 meter, the umbrella spacing of the insulation column (22) is 85 millimeters -100 millimeters, and it is 80 millimeters -90 millimeters that umbrella, which stretches out,；
The spray head spatially wimble structure；
The insulation column (22) is constituted by plural knot insulation column is detachably connected；
The pedestal (21) of the jet nozzle (2) is in cross, and terminal pad (211) are arranged in the center of cross pedestal, the insulation
Pillar is mounted on the pedestal of the jet nozzle by the terminal pad.
2. a kind of long-string insulator wet practice impact test method, it is characterised in that: the test method is using described in claim 1
Water injector spray water to long-string insulator test product, the jet nozzle of water injector is arranged at 4 meters of long-string insulator test product；
The UHV Long Insulator String that long-string insulator test product is 10 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410146737.4A CN104977432B (en) | 2014-04-11 | 2014-04-11 | Long-string insulator wet practice impact test water injector and its application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410146737.4A CN104977432B (en) | 2014-04-11 | 2014-04-11 | Long-string insulator wet practice impact test water injector and its application |
Publications (2)
| Publication Number | Publication Date |
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| CN104977432A CN104977432A (en) | 2015-10-14 |
| CN104977432B true CN104977432B (en) | 2019-09-20 |
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| CN103198907A (en) * | 2013-04-17 | 2013-07-10 | 国家电网公司 | Temporary support insulator for hot-line work wires of 10 kV power distribution |
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| CN104977432A (en) | 2015-10-14 |
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Address after: 510080 West Tower, Yuedian building, No.6 and 8 shuijungang, Dongfeng East Road, Yuexiu District, Guangzhou City, Guangdong Province Patentee after: ELECTRIC POWER Research Institute CHINA SOUTHERN POWER GRID Patentee after: Shenzhen International Graduate School of Tsinghua University Address before: 510080 West Tower, Yuedian building, No.6 and 8 shuijungang, Dongfeng East Road, Yuexiu District, Guangzhou City, Guangdong Province Patentee before: ELECTRIC POWER Research Institute CHINA SOUTHERN POWER GRID Patentee before: GRADUATE SCHOOL AT SHENZHEN, TSINGHUA University |
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