Thermal cotton plug for chemical equipment observation hole

Abstract

The utility model relates to a kind of heat-insulating cotton plug for chemical equipment observation hole, and heat-insulating cotton plug is composed of high temperature cloth and heat-insulating cotton structure;The high temperature cloth is wrapped outside heat-insulating cotton structure.The utility model has the beneficial effect that 1, high temperature cloth is wrapped outside heat-insulating cotton structure, and the wear resistance of high temperature cloth is superior to heat-insulating cotton structure, thus can avoid cotton plug friction damage after multiple uses, improve the service life of heat-insulating cotton plug;2, the shape plasticity of heat-insulating cotton plug made of broken cotton scrap is high, can be applicable to different shapes of observation hole, reduces the production accuracy of observation hole;3, heat-insulating cotton plug made of cotton block or broken cotton scrap has elasticity, even if observation hole appears abrasion, is affected by thermal expansion and cold shrinkage and occurs deformation, the elasticity of cotton plug itself can also guarantee the sealing effect of observation hole, effectively guarantee heat-insulating performance.

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