Wear prevention device for wear prevention of circulating fluidized bed water cooling wall and installation method of wear prevention device

Abstract

The invention belongs to the technical field of water cooling walls of fluidized bed boilers, and provides a wear prevention device for wear prevention of a circulating fluidized bed water cooling wall and an installation method of the wear prevention device to solve the technical problems of a poor wear prevention effect and high cost of existing wear prevention treatment of the circulating fluidized bed water cooling wall. The wear prevention device comprises a plurality of wear prevention blocks connected with circulating fluidized bed water wall cooling wall tubes separately, wherein eachwear prevention block is made of stainless steel plates, semicircular open-loop grooves opposite to the corresponding circulating fluidized bed water cooling wall tube are separately formed in each wear prevention block; a preset thermal expansion gap is formed between the outer wall, facing one water cooling wall tube, of each semicircular open-loop groove and the circulating fluidized bed watercooling wall tube, and protrusions at two sides of each semicircular open-loop groove and corresponding fins are welded together. The wear prevention blocks are made of metal materials, so that the installation process is simple and convenient, and the wear prevention device has good thermal conductivity, wear resistance and high temperature resistance.

Description

technical field [0001] The invention relates to the technical field of water cooling walls of fluidized bed boilers, in particular to an anti-wear device for anti-wear of circulating fluidized bed water cooling walls and an installation method thereof. Background technique [0002] Circulating fluidized bed boiler power generation started in 1996 and entered the supercritical era in 2013. Due to its advantages in comprehensive utilization of resources, circulating fluidized bed boilers have replaced pulverized coal boilers and become a trend in the thermal power generation industry. However, it is difficult to increase the boiler capacity due to the limitation of slag discharge cooling auxiliary equipment. [0003] The circulating fluidized bed boiler is a kind of equipment that separates the combustible solid particles mixed in the flue gas at the outlet of the furnace through separators and return devices, and then sends them back to the furnace for multiple combustions. ...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the technical problems of poor anti-wear effect and high cost in the existing circulating fluidized bed water-cooled wall anti-wear treatment, the present invention provides an anti-wear device and installation method for circulating fluidized bed water-cooled wall anti-wear, which adopts The anti-wear block is made of metal material, the installation process is simple, and it has good thermal conductivity, wear resistance and high temperature resistance

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