Combined arrangement structure of four outlets of dust remover and rear smoke and air systems of two rows of induced draft fans for power plant

Abstract

The invention relates to a combined arrangement structure of four outlets of a dust remover and rear smoke and air systems of two rows of induced draft fans for a power plant. The combined arrangement structure comprises the four outlets of the dust remover, an induced draft fan structure, a desulfurizing absorption tower, a wet electric dust remover and a chimney, wherein the induced draft fan structure is a two-row induced draft fan structure which is composed of two induced draft fans, and every two outlets of the dust remover are connected with an air inlet of one induced draft fan; air outlets of the two induced draft fans are connected with an air inlet of the desulfurizing absorption tower, and an air outlet of the desulfurizing absorption tower is connected with an air inlet of the chimney through the wet electric dust remover; the desulfurizing absorption tower is of a vertical structure, an air inlet of the desulfurizing absorption tower is formed in the lower portion of the side wall, and the air outlet of the desulfurizing absorption tower is formed in the top; the induced draft fan structure and the four outlets of the dust remover are located between the desulfurizing absorption tower and the chimney, the induced draft fan structure is located below the four outlets of the dust remover, the wet electric dust remover is located above the four outlets of the dust remover, a wet electric dust remover structure is located over the induced draft fans, the outlets of the dust remover are horizontally arranged, an air inlet of the induced draft fan structure is vertically arranged, and an air outlet of the induced draft fan structure is horizontally arranged. The combined arrangement structure is low in cost, small in occupied area, and good in operating effect.

Description

technical field [0001] The invention relates to a joint layout structure of the rear flue air system of four outlets of a dust collector and a double-row induced draft fan for a power plant, and belongs to the technical field of power plant smoke exhaust and ventilation equipment. Background technique [0002] In a coal-fired thermal power plant project, the distance from the first column of the boiler to the center line of the chimney is one of the important land occupation indicators. Most of the equipment in the flue gas system is arranged behind the furnace, while the boiler room frame, front flue and dust collector The layout is relatively fixed, and the optimization of the layout after the furnace is mainly concentrated after the dust collector. Regarding the structural form of the flue air system after the dust collector, the main structural forms at home and abroad basically adopt the arrangement structure of each equipment, that is, the induced draft fan 1-2 is arra...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a power plant with four outlets and a double-row induced draft fan for dust collectors in order to solve the technical problems of the existing coal-fired thermal power plant, such as the layout of the equipment behind the dust collector, which occupies a large area, the flue is long, and the flue resistance is large. The joint layout structure of the rear flue air system

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