Method for manufacturing anti-corrosion pipe fittings for superheater and pipe bending device

Abstract

The invention discloses a method for manufacturing an anti-corrosion pipe fitting of a superheater and a pipe bending device, aiming at solving the problems of low cladding construction efficiency of an alloy protective layer after the superheater pipe is formed, and failure to ensure cladding quality. The invention comprises the following steps: a. cladding the alloy protective layer on the surface of the pipe fitting blank; b. blanking, cutting the pipe fitting blank coated with the alloy protective layer into several bent pipe sections; c. performing pipe bending operation on the bent pipe section ; d. Splicing the bent pipe sections end to end in turn to form the anti-corrosion pipe fittings of the superheater. In the process of manufacturing anti-corrosion pipe fittings for superheaters, the alloy protective layer is clad on the surface of the pipe fitting blank before bending the pipe, and then the bending process is carried out. During the cladding operation, the blank structure of the pipe fittings is simple, which greatly facilitates the cladding operation, and the cladding construction efficiency is high. The bent pipe section is bent and then assembled to form a corrosion-resistant pipe fitting for the superheater. Improve work efficiency and ensure cladding quality.

Description

technical field [0001] The present invention relates to a superheater, more specifically, it relates to a method for manufacturing an anti-corrosion pipe fitting of a superheater and a pipe bending device. Background technique [0002] Boilers are important heat supply equipment in the national economy. Electric power, machinery, metallurgy, chemical industry, textile, papermaking, food and other industries, as well as industrial and civil heating all require boilers to supply a large amount of heat energy. In power stations, locomotives and marine boilers, in order to improve the cycle thermal efficiency of the entire steam power plant Equipped with a superheater, the superheater is a part in the boiler that further heats the steam from the saturated temperature to the superheated temperature, and is an important equipment to ensure the boiler efficiency and steam parameters. The convection superheater is the most commonly used and adopts the serpentine tube type. It has ...

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Problems solved by technology

[0003] The invention overcomes the low efficiency of cladding construction of the alloy protective layer after the superheater pipe fittings are formed and cannot guarantee the cladding quality, and provides a method for manufacturing anti-corrosion pipe fittings of the superheater and a pipe bending device, and the superheater pipe fittings are finished. The cladding construction of the alloy protective layer is followed by bending and forming, which improves the work efficiency and ensures the cladding quality

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