Efficient coating used for boiler water pump

Abstract

The invention discloses an efficient coating used for a boiler water pump. The efficient coating comprises an anti-corrosion coating and a high temperature resistant strong acid layer, wherein the high temperature resistant strong acid layer comprises a working layer and a hole sealing layer, the working layer is a Hastelloy thermal spraying coating, and the hole sealing layer consists of a high temperature resistant hole sealing agent; the anti-corrosion coating is positioned at the uppermost position, and the working layer is positioned below the anti-corrosion coating, wherein the hole sealing layer is positioned between the anti-corrosion coating and the working layer. The efficient coating has the beneficial effects that firstly, the hole sealing layer carries out hole sealing treatment on the working layer finally, a double protection effect is achieved, the hole sealing layer plays a physical covering protection role to prevent water, air and strong acid media from entering; secondly, the ingredients of the anti-corrosion coating are free of toxic property, and the coating is good in using effect and environment-friendly; and thirdly, the material cost and manufacturing cost are greatly reduced, and the efficient coating has obvious economy and safety.

Description

technical field [0001] The invention relates to the technical field of circulation pumps, in particular to a high-efficiency coating for boiler water pumps. Background technique [0002] Coating is a solid continuous film obtained by one application of paint. It is a thin plastic layer coated on metal, fabric, plastic and other substrates for the purpose of protection, insulation and decoration. The paint can be gaseous, liquid, or solid, and the type and state of the paint are usually determined according to the substrate to be sprayed. Since the working temperature of the boiler water pump is very high, generally above 340°C, the coating used for the boiler water pump must be able to withstand high temperatures. It is difficult for existing pump coatings to achieve high temperature resistance. At present, for strong acid corrosion protection of chemical equipment, pure Hastelloy body material is mainly used as the main material of the equipment. Although the anticorrosion...

AI Technical Summary

Problems solved by technology

Since the working temperature of the furnace water pump is very high, generally above 340°C, the coating used for the furnace water pump must be able to withstand high temperatures. It is difficult for existing pump coatings to achieve high temperature resistance.

At present, the strong acid corrosion protection of chemical equipment mainly uses pure Hastelloy body material as the main material of the equipment. Although the anticorrosion effect is good, the expensive Hastelloy alloy leads to high production costs of the entire equipment.

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