A method for rapid oil draining and oil filling when replacing pipeline accessories of oil-immersed transformers
A technology for transformers and pipelines, which is applied in the field of rapid oil discharge and oil injection, which can solve the problems of accelerating the deterioration of insulating oil, increasing the workload of oil injection, affecting the insulation of transformers, etc., achieving accurate oil discharge, avoiding excessive oil discharge and insulating oil waste, The effect of improving work efficiency
Active Publication Date: 2021-03-30
安徽金寨抽水蓄能有限公司 +2
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Problems solved by technology
[0004] 1. The cleanliness and dryness of the collection container or oil tank and the pipeline for the discharged insulating oil are very high. Once it is not dust-free and dry, the deterioration of the insulating oil will be accelerated, and the insulation of the transformer will be affected if it is serious;
[0005] 2. The oil is discharged through the special oil discharge valve at the bottom of the transformer, and the oil discharge volume cannot be accurately grasped, and it is easy to discharge excessive insulating oil, which increases the workload of oil injection;
[0006] 3. The above-mentioned oil discharge and oil injection operations are cumbersome, and there are problems such as waste and loss of insulating oil during the operation process
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[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0027] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the purpose of It is for the convenience of describing the present utility and simplifying the description, rather than indicating or implyin...
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The invention provides a method for high-efficiently carrying out oil draining and oiling during replacement of an oil-immersed transformer pipeline accessory. Exhaust valves of a cooling oil pump anda cooler system are used to drain oil from an oil-immersed transformer and accurate oil draining is achieved. A remaining oil storage space of an oil conservator is used to store discharged insulating oil so as to avoid problems of pollution of insulating oil and the like caused by external connection of an oil storage tank. Wastes of insulating oil during a work process are maximumly reduced andoil draining and oiling efficiency is greatly increased.
Description
technical field [0001] The invention relates to a method for quick oil discharge and oil injection when replacing pipeline accessories of an oil-immersed transformer, and belongs to the technical field of power generation and distribution systems. Background technique [0002] Oil-immersed transformers are widely used in all aspects of power generation and distribution in power systems, and are important power distribution equipment in power systems. With the increase of operating years, oil-immersed transformers are likely to have many common problems such as air leakage from the cooling oil pump, oil leakage from the auxiliary valve sealing, and water leakage from the external cooler. Once the above situation occurs, and the nearest valve cannot form an effective isolation, the accessories of the pipeline can only be replaced by draining the insulating oil of the transformer. The traditional oil-draining method for oil-immersed transformers below 220kV is to drain the oil...
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IPC IPC(8): H01F41/00H01F27/14
CPCH01F27/14H01F41/00
Inventor 王熙林柏秋杨聚伟王少华王雄飞瞿洁罗国虎倪马兵钱继源纵向群林文仵杰黄少争田波波
Owner 安徽金寨抽水蓄能有限公司