A main transformer online regenerative respirator with a frequency conversion control microwave heating device and its use method

Abstract

The invention relates to a main transformer on-line regenerative breathing apparatus with a variable frequency control microwave heating device. The main transformer on-line regenerative breathing apparatus comprises a main transformer body and an oil conservator which is connected with the main transformer body, wherein the upper part of the oil conservator is connected with the upper end of a main transformer breathing tube; the lower end of the main transformer breathing tube is connected with a three-way tube; the rest two ends of the three-way tube are connected to a first moisture absorption tank and a second moisture absorption tank through the first valve and the second valve respectively; the first moisture absorption tank and the second moisture absorption tank are connected to the variable frequency control microwave heating device; the variable frequency control microwave heating device is electrically connected to a variable frequency microwave controller. A moisture absorbent is not required to be replaced; the main transformer on-line regenerative breathing apparatus has the advantages of higher heating efficiency, use safety, energy conservation, consumption reduction and the like; compared with the conventional main transformer breathing device, the apparatus has great advantages.

Description

technical field [0001] The invention relates to the field of main transformer online regenerative respirator, in particular to a main transformer online regenerative respirator with frequency conversion control microwave heating device and its use method. Background technique [0002] When the main transformer is in operation, it will breathe with the outside air through the breathing tube. If there is no respirator installed on the breathing tube, the main transformer will directly inhale the humid air from the outside. Especially in rainy and humid weather, the main transformer is more likely to be damp. The traditional main transformer breathing device is equipped with a color-changing silica gel hygroscopic agent. When the hygroscopic agent becomes saturated with moisture, the staff needs to bring a qualified and dry hygroscopic agent or a hygroscopic tank filled with a qualified hygroscopic agent to the main transformer site for replacement. During the replacement proces...

AI Technical Summary

Problems solved by technology

The traditional main transformer breathing device is equipped with a color-changing silica gel hygroscopic agent. When the hygroscopic agent becomes saturated with moisture, the staff needs to bring a qualified and dry hygroscopic agent or a hygroscopic tank filled with a qualified hygroscopic agent to the main transformer site for replacement. During the replacement process The breathing tube of the middle main transformer is directly connected with the outside atmosphere, which will cause the breathing air flow of the main transformer to change, which may lead to a serious failure of the main transformer gas relay heavy tile malfunction. Therefore, the traditional main transformer breathing device must replace the main transformer heavy tile It can only be carried out after the protection device is withdrawn, and the withdrawal time is as long as 3-4 hours

[0003]Heavy tile protection is one of the most important protection devices for the operation of the main transformer. Action to trip the main transformer switch to prevent further expansion of the accident. If the heavy tile is pulled out at this time, the main transformer switch will not be cut off, resulting in the expansion of the accident and even serious consequences of the main transformer explosion.

The protection device for removing heavy tiles needs to be approved by the chief engineer of the unit, and the operating personnel make a special trip to the main control room of the substation to operate, which is labor-intensive, time-consuming and expensive

[0004] One disadvantage of the traditional main transformer breathing device is that when replacing the color-changing silica gel, after removing the moisture absorption tank, the breathing airflow of the main transformer is directly communicated with the outside atmosphere, making it easy for moisture and water to invade the main transformer oil through the breathing tube of the main transformer, and Replacing the dehumidifier will cause waste and also easily pollute the environment

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