Transformer respirator and method

Abstract

The invention discloses a transformer respirator and a method thereof, comprising a tank body containing silica gel particles and a three-way pipe communicating with the tank body, the lower branch pipe of the three-way pipe is connected with the breathing pipe of the oil tank, the three-way pipe The left branch pipe of the pipe is connected with the air outlet of the hot air blower, the left solenoid valve and the lower solenoid valve are respectively provided on the left branch pipe and the lower branch pipe, and the oil level pipe on the side of the oil tank is provided with an oil level pipe through a bracket. A color sensor, one side of the tank body is provided with a silicone color sensor, the hot air blower, the left solenoid valve, the lower solenoid valve, the oil level color sensor and the silicone color sensor are all connected to a programmable controller, and the programmable control The device is connected with a wireless communication module. The present invention installs a color sensor on the respirator and the oil level pipe to judge whether the color of the silica gel and oil is normal. Replace color changing silicone.

Description

Technical field [0001] The invention relates to the technical field of transformer respirators, in particular to a transformer respirator and a 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 directly inhales the humid air from the outside, especially in rainy and humid weather. When the traditional main transformer respirator has hygroscopic filler and discolored silica gel absorbs moisture and is saturated, the staff needs to bring qualified dry moisture absorbent or silica gel tank filled with qualified moisture absorbent to the main transformer site for live replacement. During the replacement process, the main transformer breathing tube and the outside world Direct communication with the atmosphere will cause changes in the breathing airflow of the main transformer, which may cause serious malfunctio...

AI Technical Summary

Problems solved by technology

When the traditional main transformer respirator’s moisture-absorbing filler changes color and is saturated with moisture, the staff needs to carry a qualified dry hygroscopic agent or a silicone tank filled with a qualified hygroscopic agent to the main transformer site for electrified replacement. During the replacement process, the main transformer breathing tube is in contact with the outside world. Direct communication with the atmosphere will cause changes in the breathing airflow of the main transformer, which may lead to serious failures of the main transformer gas relay heavy tile malfunction. Therefore, the traditional main transformer respirator must withdraw the main transformer heavy tile protection device when replacing the adsorbent. Exit time up to 4-5 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] Another disadvantage of the traditional main transformer respirator is that when replacing the color-changing silica gel, after the silicone tank is removed, 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 changing the hygroscopic agent will cause waste, and it is also easy to pollute the environment

[0005] In the prior art, such as a transformer respirator disclosed in CN201310029094.0 and a new type of main transformer respirator disclosed in CN201520462444.7, its shortcoming is that it depends entirely on the operator to find the equipment within the pre-arranged inspection period. Faults and defects, due to the weather, sometimes the color-changing silica gel in the respirator will change color in advance, and the operator cannot detect it early, causing environmental pollution and equipment failure, and then causing power outages and economic losses

If the transformer is abnormal or the silica gel is not replaced in time, the color of the silica gel will turn red. If the transformer continues to operate for a long time, it will cause permanent damage to the transformer winding.

The above devices cannot monitor the oil level. If the transformer is short of oil, the oil level indicator will become colorless. If the transformer continues to operate, the transformer will burn out; if the transformer winding runs abnormally, the transformer oil will become darker or black. , will cause damage to the transformer; more importantly, the color-changing silica gel in the above-mentioned prior art has poor adsorption capacity, and frequent replacement of the color-changing silica gel is required, which is labor-intensive, time-consuming and expensive, and affects the stability of power supply

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