Moisture absorber for transformer

Abstract

The invention relates to the technical field of conventional electric power manufacturing, and discloses a moisture absorber for a transformer. The moisture absorber comprises a side box, a main box body, a sealing cover, a silica gel moisture absorption device I, a silica gel moisture absorption device II, a connecting pipe, an air humidity detector and a bolt, wherein the right end of the side box is connected with the left end of the main box body through a flange plate, and the sealing cover is located on the upper surface of the main box body. Real-time humidity detection is carried out on air entering the transformer through the arrangement of an air humidity detector, so that the safety of the transformer is effectively improved; the moisture absorption effect of the moisture absorber is strictly monitored by adopting a modern technology; and manual observation and a glass silica gel cylindrical container are omitted, the labor cost is reduced, the structural strength of the moisture absorber is improved, the safety of the moisture absorber is improved, and the loss caused by damage of the silica gel container is reduced. Meanwhile, the use efficiency of silica gel can be effectively improved, the use time of the silica gel is prolonged, the replacement frequency of the silica gel is reduced, and the maintenance cost is reduced.

Description

technical field [0001] The invention relates to the technical field of conventional electric power manufacturing, in particular to a moisture absorber for a transformer. Background technique [0002] The distribution station uses dry-type transformers and oil-immersed transformers to change the voltage for power transmission. Due to the poor air-cooling and heat dissipation of dry-type transformers, oil-immersed transformers that use oil passages to dissipate heat are widely used. When the transformer is heated and expands, the transformer is exhaled Excess air inside; when the transformer oil temperature drops and shrinks, it needs to inhale air from the outside to balance the pressure. In order to prevent the transformer from being damp and ensure the insulation strength of the transformer oil, a moisture absorber is required to filter and absorb moisture from the external air. The moisture absorber passes through the transformer oil and silica gel to filter impurities and...

AI Technical Summary

Problems solved by technology

[0003] First, external air enters from the bottom of the dehumidifier and passes into the bottom cover transformer oil. Once the transformer absorbs more air, the air flow in the dehumidifier becomes larger, causing the bottom cover transformer oil to spray upwards, causing large-scale pollution to the silica gel. , the moisture absorption effect is reduced. At the same time, when the external air passes through the bottom cover transformer oil, it will carry the transformer oil and contact the silica gel, causing the bottom silica gel to be polluted. After drying, it will become black particles and lose the moisture absorption function. At the same time, the silica gel is granular and difficult to sort , so it is necessary to replace all the silica gel in the dehumidifier, causing great waste and increasing the cost of operation and maintenance

[0004] Second, at present, in order to ensure the moisture absorption effect of the dehumidifier, the silica gel in the dehumidifier is usually replaced after two-thirds of the discoloration of the silica gel, but the silica gel container is a cylindrical container, and the air contacts the silica gel from the bottom, causing the bottom silica gel The color changes first, so that there is an obvious color difference between the upper and lower sides. In actual use, the silica gel will be replaced after one-third of the discoloration. It is impossible to have an accurate judgment on the moisture absorption effect in the dehumidifier and the air humidity entering the transformer. accurate measurement

[0005] Third, when replacing the silica gel in the moisture absorber, it is necessary to remove the moisture absorber as a whole and disconnect it from the oil conservator on the transformer, resulting in a long replacement time, and the air containing moisture and debris during the replacement process Entering the oil conservator will cause the transformer oil to deteriorate and affect the operation of the transformer. At the same time, for the convenience of observation, a transparent cylindrical glass tube is used as the silicone container, which makes the moisture absorber easy to be damaged during miscellaneous transportation and use, causing great inconvenience to transportation and use.

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