Novel superheater hoisting installation

Abstract

The invention relates to a novel superheater hoisting installation, and aims to bring facility to pipeline replacing operation during the maintenance and operation of a superheater through the provided device, reduce the hoisting installation cost of the superheater and meanwhile improve the stability of superheater components. According to the technical scheme, the novel superheater hoisting installation is characterized by including a fixed frame horizontally fixed on a horizontal flue collecting box and a plurality of hanging assemblies hooking the superheater on the fixed frame detachably; the fixed frame is a rectangular frame composed of two box irons and two steel trusses; the hanging assemblies comprises a hanger plate fixed to the superheater in a sleeved mode and a hook pin fixed to the fixed frame and fitted with the hanger plate in a hooked mode.

Description

technical field [0001] The invention relates to a garbage incineration boiler, in particular to a novel hoisting device for a superheater. Background technique [0002] With the rapid development of cities, the problem of urban domestic waste is becoming more and more serious. How to realize the harmless, reduction and recycling of urban domestic waste has become a major problem facing the world. Among them, waste incineration boilers have been widely used as a waste treatment method in China. [0003] In large waste incineration boilers, superheaters are often vertically arranged in the boiler flue in the form of serpentine tubes. In order to reduce pipe deformation, the superheater is hoisted to the roof beam at the bend of the serpentine pipe through hoops, booms and other components. This hoisting structure makes the hoisting points on the superheater densely distributed, the space is cramped, and the hoisting cost is high. At the same time, due to the small distance ...

AI Technical Summary

Problems solved by technology

This hoisting structure makes the hoisting points on the superheater densely distributed, the space is cramped, and the hoisting cost is high

At the same time, due to the small distance between the serpentine pipe elbow and the elbow, it is impossible to provide a lifting point at each serpentine pipe elbow. Therefore, the pipe is allowed to be relatively deformed at the elbow without a lifting point Produced, affecting the service life of the pipe

In addition, due to the complexity of the composition of the waste entering the furnace, the large fluctuations in moisture content and calorific value, the flue gas generated after combustion is highly corrosive, and the high-temperature corrosion during the incineration process mainly occurs in the superheater area. More prone to tube burst accidents than other components in the boiler

The maintenance and replacement of the superheater piping system also brings a lot of inconvenience to the suspension structure of the superheater

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