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Power transformer respirator

A technology for power transformers and respirator, applied in the direction of transformer/inductor cooling, etc., can solve the problems of time-consuming, labor-intensive and inconvenient maintenance, and achieve the effect of convenient maintenance and performance recovery.

Inactive Publication Date: 2018-04-13
徐州市苏腾电器设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the current transformer respirator is time-consuming and laborious in the maintenance process, which is very inconvenient

Method used

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  • Power transformer respirator
  • Power transformer respirator
  • Power transformer respirator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] exist figure 1 , figure 2 In the shown embodiment one, the power transformer respirator includes a filter cavity 1 made of glass tubes, the filter cavity 1 is filled with filter material 2, and the air entering the filter cavity from one end of the filter cavity 1 needs to pass through the filter cavity. The filter material 2 flows out from the other end of the filter cavity; the outside of the filter cavity 1 is surrounded by a thermal insulation tube 3; a closed area is formed between the thermal insulation tube 3 and the filter cavity 1, and a surrounding filter is provided in the closed area. Electric heating device 4 for chamber 1. The enclosed area is not a strictly enclosed area, and there is a small ventilation hole between it and the outside world, so that the air expanded in the enclosed area can flow out from the small ventilation hole, so as to avoid excessive pressure in the enclosed area.

[0019] The detector 5 facing the filter material 2 is also arra...

Embodiment 2

[0023] for image 3 The second embodiment shown is different from the first embodiment in that the filter material 2 is cylindrical, the end of the filter material 2 facing the oil conservator is fixed with a first slide plug 21, and the end of the filter material 2 facing the outside is fixed with a second Two sliding plugs 22; make the filter material 2 and the first and second sliding plugs 21, 22 axially slide in the filter chamber 1; and the first and second sliding plugs 21, 22 are provided with ventilation holes A return spring 6 is arranged between the end of the second slide 22 and the filter cavity 1; the back of the first slide 21 is away from the filter material side and a telescopic cylinder 7 is fixed by a supporting frame 71; the telescopic cylinder 7 When the internal gas temperature is greater than the design value, one end face of the telescopic cylinder 7 is stretched to resist the first slide 21 and completely cover the vent hole on the first slide 21, so t...

Embodiment 3

[0026] for Figure 4 The third embodiment shown is different from the second embodiment in that the cover 8, the air pipe 81 and the electromagnetic valve 9 are used to replace the telescopic cylinder 7 and the support frame 71 in the second embodiment; the cover 8 covers the second A slide plug 21 is away from the filter material side, and a gas pipe 81 is drawn out on the cover 8, and a solenoid valve 9 is connected in series in the gas pipe 81; the solenoid valve 9 is kept closed when the electric heating device 4 is turned on, 4 stays on when disconnected.

[0027] The technical effect produced by the third embodiment is basically the same as that of the second embodiment, except that the opening and closing of the air hole of the first spool 21 can be controlled more precisely; but because the first sled 21 is moving, a part of the connection needs to be consumed. circuit cost.

[0028] During the use of the self-recovering transformer respirator in each of the above-me...

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PUM

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Abstract

The invention provides a power transformer respirator which comprises a filtering cavity composed of by glass tubes. The filtering cavity is filled with a filtering material, air entering the filtering cavity from one end of the filtering cavity needs to pass through the filtering material and then flows out of the other end of the filtering cavity. The outer side of the filtering cavity is surrounded by a heat insulation pipe. A closed area is formed between the heat insulation pipe and the filtering cavity, and an electric heating device surrounding the filtering cavity is arranged in the closed area. A detector facing the filtering material is also arranged in the heat insulation pipe and comprises a red light source and a photosensitive sensor, wherein the lighting range of the photosensitive sensor is limited to light spots formed by the red light source on the filtering material. The photosensitive sensor is coupled between the electric heating device and a power supply structureof the respirator, and only when the lighting strength of the photosensitive sensor is greater than a set threshold value, the electric heating device is connected. The power transformer respirator can automatically complete performance restoration and is very convenient to maintain and repair.

Description

[0001] This application is a divisional application of the patent application whose application number is 2016111825011 and which is named self-restoring respirator. technical field [0002] The invention relates to the field of electric equipment, in particular to a transformer respirator. Background technique [0003] For oil-immersed transformers, due to the obvious difference in heat generation between peak hours and low-peak periods of electricity consumption, the oil level in the oil conservator will change greatly. Therefore, the air in the transformer often enters and exits the transformer inside and outside the transformer; In order to filter out the moisture and impurities in the outside air, it is necessary to make the air in the transformer pass through the respirator to be the same as the outside world. In this way, when the air enters and exits the transformer, it is filtered through the silica gel and other filter materials in the respirator, which can protect ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/14
CPCH01F27/14
Inventor 朱小菊
Owner 徐州市苏腾电器设备有限公司