Oil filtering device for electrified oil filter of ultra-high voltage transformer

A transformer and ultra-high voltage technology, which is applied in the field of oil filtration equipment for ultra-high voltage transformers, which are charged and finely filtered for nine indicators of transformer oil, can solve the problems of low efficiency, high cost, and long working time.

Pending Publication Date: 2019-04-23
沈阳大型电力变压器维修有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] 2.1 There have been live oil filter equipment at home and abroad, and its characteristics are mainly for transformer switching oil with less oil and oil-less transformer oil filter with lower voltage level. When using the above live oil filter equipment, the working time is long and the efficiency is high. Low cost, high cost, and a single index for oil filtration projects, and this live oil filtration equipment needs to be equipped with a heating power supply and an intermediate filter tank
At present, there is no data at home and abroad to show that live oil filtering and oil filtering equipment for ultra-high voltage transformers can intelligently process nine kinds of oil project indicators at the same time, and use the thermal energy efficiency generated by the transformer itself to realize energy-saving live oil filtering. Fastest oil effect, high precision, saving time and energy

Method used

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  • Oil filtering device for electrified oil filter of ultra-high voltage transformer

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] An oil filtering device for live oil filtering of ultra-high voltage transformers, comprising a filter tank 1.

[0035] There is a filter element 2 (composite solid filter element) inside the filter tank 1. The filter tank 1 includes the outer shell of the filter element, and the filter element 2 is arranged inside the outer shell of the filter element. The filter element 2 is a cylinder. Body inlet 3, and the other end is core body outlet 4.

[0036] The outer casing of the filter element has an inlet of the outer casing of the filter element, the pipeline is connected to the inlet 3 of the core body, and the outlet 4 of the core body is sealed by a sealing plate 17 . The sealing plate 17 is fixedly supported in the outer casing of the filter element at the same time.

[0037] There is a gap between the filter element 2 and the outer housing of the filter element. The outer casing of the filter element also has an outlet of the outer casing of the filter element, whi...

Embodiment 2

[0063] Embodiment 2 is basically the same as Embodiment 1, and its difference is:

[0064] The filter element 2 is mainly made of 3.5 parts of activated clay, 6 parts of silica gel and 0.5 part of adsorbent.

[0065] The curing agent is a resin, and the quality of the resin is 9% of the sum of the mass of activated clay, silica gel and adsorbent.

[0066] The ingredients of the filter element 2 are used when the oil medium loss value is 1-4% at 90°C.

Embodiment 3

[0068] Embodiment 2 is basically the same as Embodiment 1, and its difference is:

[0069] The filter element 2 is mainly made of 9.5 parts of silica gel and 0.5 parts of adsorbent.

[0070] The curing agent is resin, and the mass of resin is 10% of the sum of silica gel and adsorbent mass.

[0071] The ingredients of the filter element 2 are used when the oil medium loss value is 0.5-1% at 90°C.

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PUM

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Abstract

An oil filtering device for electrified oil filter of ultra-high voltage transformer comprises an oil pump. The outlet pipe of the oil pump is connected to the inlet of the outer casing of a filter element, the outer casing of the filter element is internally provided with the filter element, and the outer casing of the filter core is provided with a filter element outer casing outlet. A degassingtank is arranged on a pipeline between the filter element outer casing outlet and the outlet of the oil pump. An electrostatic device is arranged on the inlet pipeline of the oil pump. An oil discharge pump is arranged on the outlet pipe of the outer casing of the filter element. A circulating oil pump that draws oil towards the degassing tank is connected between the inlet of the oil discharge pump and the inlet of the degassing tank. The filter element is mainly made of activated clay, silica gel and adsorbent. The UHV transformer does not need to be powered off during normal operation. Theload heat energy during normal operation of the transformer is employed to replace traditional required power sources. Processing of nine oil quality indexes can be completed at the same time in theprocessing process.

Description

technical field [0001] The invention belongs to the technical field of electric power, and in particular relates to an oil filtering device used for live oil filtering of ultra-high voltage transformers, which can be used for ultra-high voltage transformer live fine filtering of nine indicators of transformer oil. Background technique [0002] The life of a transformer in normal operation depends on the quality of the transformer oil. After several years of operation for a newly installed transformer, the quality of the oil will change to varying degrees. The greater the load of the transformer, the greater the heat energy generated. The body is affected by the heat energy, and its solid matter expands. Transformer oil, as the liquid insulation medium for cooling the inner body, will fuse some tiny impurities and dust on the solid surface into the oil during the process of thermal buoyancy displacement of the heat energy. Under the action of the electric field and working te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/14
CPCH01F27/14
Inventor 张宇张晓亮常云鹏
Owner 沈阳大型电力变压器维修有限公司
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