Protection technology of full-surface insulating paint dip-coating of dry hollow reactor before operation

Abstract

The invention discloses a protection technology of full-surface insulating paint dip-coating of a dry hollow reactor (hereafter referred to as a reactor). The technology is used for processing the full surface of the reactor, and includes the following steps that the whole reactor is immersed in a tank containing paint and taken out from the tank after a short period of time, abundant paint flows back into the tank again, an insulating paint layer is coated on the full surface of the reactor, and quality of the processed reactor is detected. According to the reactor adopting the protection technology, the probability that vapor molecules infiltrate, and accordingly inter-turn short circuit of the reactor is caused and the reactor is damaged is greatly reduced, and the service life of the reactor is prolonged.

Description

technical field [0001] The invention relates to a protection process for a dry-type air-core reactor, in particular to a protection process for dip-coating an insulating paint on the entire surface of a dry-type air-core reactor. Background technique [0002] The climate in the southern region is humid and rainy, the air humidity is high, and the annual average humidity is above 80%. Epoxy resin, one of the manufacturing materials of dry-type air-core reactors, will gradually lose its The original mechanical properties and insulation properties will become brittle, the mechanical strength will be weakened, and it will be easily broken down. This process is also the aging process of epoxy resin. In general, the higher the temperature, the faster the mechanical and insulating properties of the epoxy resin will weaken; the more moisture the epoxy resin contains, the faster it will age. At present, for the surface protection of the small space in the air duct of the reactor, du...

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Problems solved by technology

[0003] At present, before the reactor leaves the factory and is put into operation, insulating paint is sprayed on the outer surface of the reactor and the outer surface of the inner diameter, but the most important part is the inner surface of the air passage, and often the surface area of ​​this part accounts for the vast majority , the existing tools such as spray guns cannot achieve the spraying work on the inner surface of the narrow and long air passage, resulting in no insulating coating on the inner surface of the air passage at all

It is for this reason that after the reactor equipment has been operated outdoors or indoors for a certain number of years, after various moisture and dirt have gradually accumulated on the inner surface of the airway to a certain extent, under the action of the electric field, moisture infiltration is prone to occur, causing The insulation material is aging and loses its original insulation protection function, which eventually leads to the destruction of the reactor

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