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Series type transformer oil fine filter

A fine filter and transformer oil technology, which is applied in transformer/inductor cooling, filtration separation, chemical instruments and methods, etc., can solve the problem that the particle size index of the transformer cannot meet the requirements, and achieve the effect of improving the filtration efficiency

Inactive Publication Date: 2012-06-20
SHANDONG POWER EQUIP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the past, the transformer oil was filtered by a double-stage high-vacuum oil filter before being injected into the transformer and in the hot oil circulation process of the main body. The granularity index required by the above transformers cannot meet the requirements

Method used

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  • Series type transformer oil fine filter
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Embodiment Construction

[0011] As shown in the figure, a transformer oil filter that can be connected in series includes a cylinder body 4, a cover 1 and a bottom plate 9, and an oil inlet pipe joint 8 is provided on the upper side of the cylinder body 4, which is connected to the oil outlet of the oil filter unit. The other side is provided with an oil outlet pipe joint 12, which is connected with a transformer or an oil tank, and the oil inlet pipeline and the oil outlet pipeline are connected by flanges. A coaxial filter element 6 and an oil penetration pipe 5 are arranged inside the cylinder body 4 , and the filter element 6 and the oil penetration pipe 5 are connected to the cylinder body 4 through the flange plate at the upper end and the flange plate at the lower end. A back-up ring 7 is respectively arranged up and down in the cylindrical body 4, which is close to the filter core and can prevent the filter core from moving. A sealing gasket 2 and a sealing ring 3 are also provided in the cyli...

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Abstract

The invention relates to a series type transformer oil fine filter which comprises a cylinder, a cover and a bottom plate, wherein an oil inlet pipe joint is arranged on one side of the cylinder and connected with an oil discharge port of an oil filter; an oil outlet pipe joint is arranged on the other side of the cylinder and connected with a transformer or oil tank; an oil inlet pipeline and an oil outlet pipeline are connected through a flange; coaxial 0.5mu m filter element and oil-through pipe are sequentially arranged from outside to inside in the cylinder; four universal wheels are arranged at the lower end of the bottom plate, can move flexibly and are connected with any oil filter. One level of 0.5mu m fine filter is added to the 3mu m filter at the oil discharge port of the oil filter, and the oil filtering efficiency of the transformer is greatly improved so that the hot oil circulation granularity of the 500kV transformer reaches the NAS3 level and the circulated hot oil of the 750kV transformer reaches NAS1 level.

Description

technical field [0001] The invention relates to a transformer oil filter, in particular to a transformer oil fine filter which can be connected in series. Background technique [0002] In the past, the transformer oil was filtered by a double-stage high-vacuum oil filter before being injected into the transformer and in the hot oil circulation process of the main body. The granularity indicators required by the above transformers cannot meet the requirements. Contents of the invention [0003] In view of the above problems, the present invention proposes a series-connectable fine filter, which adds a first-stage fine filter to the 3um filter at the oil discharge port of the double-stage high vacuum oil filter, which greatly improves the efficiency of transformer oil filtration. [0004] The present invention adopts the following technical solutions: a transformer oil filter that can be connected in series, including a cylinder body, a cover and a bottom plate, and an oil ...

Claims

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Application Information

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IPC IPC(8): H01F27/14B01D35/02
Inventor 杨红燕王士君王献董艺冰
Owner SHANDONG POWER EQUIP