Spray device and method for manual ice coating of ultra-high voltage equipment

A spray device and ultra-high voltage technology, applied in the field of electrical engineering, can solve the problems of complicated operation and short icing distance, and achieve the effects of uniform spray, convenient operation and maintenance, and good economy.

Inactive Publication Date: 2015-04-29
STATE GRID CORP OF CHINA +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention provides a spraying device and method for artificial icing of ultra-high voltage and ultra-high voltage equipment, and its purpose is to overcome the problems of short icing distance and complicated operation in the prior art

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  • Spray device and method for manual ice coating of ultra-high voltage equipment

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Embodiment 1

[0026] In the embodiment of the present invention, the climate artificial simulation indoor UHV equipment is artificially iced with a tapered spray air supply bellows, such as figure 1 As shown, the mounting bracket 1 is made of ordinary stainless steel square tube; the variable frequency induction fan 2 is an explosion-proof centrifugal fan of model B4-72 (79) produced by Zhejiang Shangyu Sanhe Fan Co., Ltd., and its air volume is 4420- 48800m 3 / h, the wind pressure is 317-2118Pa; the static pressure box 3 is made of ordinary hot-dip galvanized steel plate with a thickness of 1.5mm to make a square pipe, and its size is 800mm (length) × 700mm (width) × 2400mm (height); taper The type air supply bellows 4 is made of ordinary hot-dip galvanized steel sheet with a thickness of 1.5mm to form a square pipe. There are four levels in total. Three spherical air outlets 5 and three ice-coated nozzles 6 are evenly installed on each level. The first level is a cubic bellows. The size ...

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Abstract

The invention discloses a spray device and method for manual ice coating of ultra-high voltage equipment. The spray device comprises a mounting support 1, a variable frequency inducement blower 2, a static pressure box 3 and a gradual contraction type spray blow box 4. The variable frequency inducement blower 2, the static pressure box 3 and the gradual contraction type spray blow box 4 are sequentially connected and are all mounted on the mounting support 1. The gradual contraction type spray blow box is provided with a plurality of air outlets 5, and an ice coating shower nozzle 6 is mounted in front of each air outlet. According to the device, one small air outlet is formed in each spray nozzle, even and high-pressure induced air is generated, tiny raindrops are pushed out by several meters at the spray nozzles through the induced air, and the spray distance of the spray nozzles is prolonged. Due to the fact that the diameter of the air outlets is very small, the influence on the inside environment of a climatic simulation test room is very small, meanwhile, the effective spray distance of ice coating water drops can be extended to reach 10-12 meters, the effective spray distance can be adjusted by adjusting the air pressure, and the test requirement of the ultra-high voltage equipment is met.

Description

technical field [0001] The invention relates to the technical field of electrical engineering, in particular to a spray device and method for artificial icing of ultra-high voltage and ultra-high voltage equipment. Background technique [0002] The climate artificial simulation laboratory for power system is the main environmental laboratory used to study the icing law and hazards of power equipment. For the research on icing of UHV equipment, the internal space size of the laboratory must meet the electrical requirements of the icing test of UHV equipment. The distance requirement is usually 18 meters or even more than 20 meters in diameter. When icing the EHV and UHV equipment under live conditions, the EHV and UHV equipment should be placed in the center of the climate simulation laboratory, and the ice-coated water spray device The distance between the nozzle and the UHV equipment needs to be kept at about 8-10 meters (ultra-high pressure can be reduced). For this reason...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
Inventor 蒋正龙陆佳政赵纯李波胡建平张红先吴伟方针
Owner STATE GRID CORP OF CHINA
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