Wear prevention device for wear prevention of circulating fluidized bed water cooling wall and installation method of wear prevention device
A circulating fluidized bed and water-cooled wall technology, which is applied to fluidized bed combustion equipment, combustion methods, and fuels burned in a molten state, can solve the problems of poor anti-wear effect and high cost, and achieve high manufacturing efficiency, light weight, The effect of reducing the gray speed
Pending Publication Date: 2021-02-12
山西昱光发电有限责任公司 +1
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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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[0040]In the process of realizing the technical solution of this embodiment, the inventors found that different structures of anti-wear beams have different effects on the anti-wear effects of water-cooled walls. Decrease speed, thereby reducing the erosion and wear of particles on the water wall. Generally, the material of the water wall is mostly castable, which seriously affects the heat transfer of the water wall and the combustion in the furnace. For this reason, this embodiment provides an anti-wear device for the water-cooled wall of a circulating fluidized bed. The two sides of the water-cooled wall tube of the circulating fluidized bed are respectively provided with fins, and the fins are arranged on the circulating fluidized bed. The surface of the bed water wall tube, the anti-wear device includes:
[0041] Multiple anti-wear blocks respectively connected to the water wall of the circulating fluidized bed;
[0042] Each anti-wear block is made of stainless steel p...
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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. ...
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IPC IPC(8): F23C10/18F23M5/08
CPCF23C10/18F23M5/08F23C2206/10
Inventor 张茂珍刘瑞锋魏利平李鑫贾征琦周勇王强
Owner 山西昱光发电有限责任公司
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