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Replacing device and replacing method for butterfly valve of main transformer

A technology for main transformers and transformers, applied in the field of butterfly valve replacement devices for main transformers, can solve problems such as extended power outage time and heavy labor, and achieve the effects of reducing labor, improving efficiency, and simple structure

Inactive Publication Date: 2010-04-07
国网江苏省电力有限公司句容市供电分公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, there is no special disc valve replacement device for replacing the disc valve, so the disc valve can only be replaced after the main transformer oil is discharged from the transformer, and the transformer oil is injected into the main transformer after replacement. Prolonged outage time and heavy labor

Method used

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  • Replacing device and replacing method for butterfly valve of main transformer
  • Replacing device and replacing method for butterfly valve of main transformer
  • Replacing device and replacing method for butterfly valve of main transformer

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Embodiment Construction

[0015] Such as figure 1 As shown, the disc valve replacement device of the main transformer of the present invention includes a vacuum pipeline 1, and one end of the vacuum pipeline 1 is communicated with the transformer oil chamber 5 through an explosion-proof tube 4, and the other end of the vacuum pipeline is connected with a vacuum pump 2. A pressure indicating gauge 3 is installed on the vacuum pump 2 .

[0016] The method of the present invention is used to replace the oil discharge butterfly valve 6 that leaks at the bottom of a 35kV main transformer in the power transmission line, and the steps are as follows:

[0017] Determination of the density of transformer oil: Use a 300ml conical cup to measure 250, 200, 150, and 100ml of transformer oil respectively and place them on a standard balance. The obtained quality and corresponding density data are as follows:

[0018] Body 250 200 150 100

[0019] Volume (ml)

[0020] Quality 211.75 169.21 127.24 84.64

[0021] Q...

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Abstract

The invention relates to a replacing device and a replacing method for a butterfly valve of a main transformer. The device comprises a vacuum-pumping pipeline communicated with the top of the oil cavity of the transformer, and the tail end of the vacuum-pumping pipeline is connected with a vacuum pump which is provided with a pressure indicator gauge. The inventive replacing device for the butterfly valve of the main transformer has simple structure, and the replacing method for the butterfly valve of the main transformer is easy and convenient, thus greatly improving efficiency, and reducing labor capacity in working operation.

Description

technical field [0001] The invention relates to a butterfly valve replacement device and a replacement method of a main transformer used for replacing a butterfly valve of an oil discharge port at the bottom of a power transformer. Background technique [0002] The main transformer of power transmission equipment is equipped with a certain amount of transformer oil. When the butterfly valve of the oil discharge port at the bottom of the main transformer is damaged and oil leaks, it often needs to be replaced. However, in the prior art, there is no special disc valve replacement device for replacing the disc valve, so the disc valve can only be replaced after the main transformer oil is discharged from the transformer, and the transformer oil is injected into the main transformer after replacement. The power outage time is prolonged, and the workload is heavy. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a dis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/14H01F41/00
Inventor 盛小海周云赵新
Owner 国网江苏省电力有限公司句容市供电分公司