Air preheater enamel pipe inner surface enameling device and working method

Abstract

The invention relates to an air preheater enamel pipe inner surface enameling device and a working method. The enameling device comprises a rack, a delivery mechanism, a clamping mechanism and an enameling mechanism, wherein the delivery mechanism, the clamping mechanism and the enameling mechanism are fixed to the rack; the delivery mechanism is fixed to the top end of the rack and used for hanging and moving a pipe to be enameled; the clamping mechanism is used for clamping the pipe wall of the pipe; the enameling mechanism is connected with an enameling driving device and is driven to moveup and down along the rack by the enameling driving device; the enameling mechanism is provided with a glaze tank. In the enameling process, the enameling mechanism moves the bottom end of the pipe tobe enameled along the rack, the pipe to be enameled is inserted into the glaze tank, and the glaze tank and an inner cavity of the pipe to be enameled form a closed space through a sealing component;under the action of a slurry feed system, glaze goes into the closed space to conduct immersion type enameling on the pipe to be enameled. The air preheater enamel pipe inner surface enameling deviceprovided by the invention is high in automation degree, the production efficiency is improved, and the labor intensity is reduced.

Description

technical field [0001] The invention relates to the technical field of enamel pipe enamelling equipment, in particular to an enamelling device and working method for the inner surface of an enamel pipe used in an air preheater. Background technique [0002] The air preheater, also referred to as the air preheater for short, is a preheating device that improves the heat exchange performance of the boiler and reduces heat loss. The function of the air preheater is to conduct the heat carried in the flue gas discharged from the flue at the tail of the boiler to the air before entering the boiler through the enamel heat exchange element, preheat the air to a certain temperature, and transfer the heat to the air entering the boiler. Air in front of the boiler. [0003] Steel is often used to make heat transfer elements because of its excellent heat transfer and mechanical properties, but steel heat transfer elements have poor chemical corrosion resistance. According to the meas...

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the above-mentioned technical defects, the present invention provides an enamelling device for the inner surface of the enamel tube of the air preheater, which is used for continuous immersion enamelling on the inner surface of the enamel tube of the tubular air preheater, which improves the enamelling efficiency of the inner surface of the enamel tube and solves the problem of The problem of low product pass rate and unstable performance, in order to achieve the above purpose, the present invention adopts the following technical solutions:

Images