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Flue gas system after dust collector with integration of desulfurization absorption tower and flue gas heat exchanger

A technology of desulfurization absorption tower and flue gas heat exchanger, which is applied in the field of flue gas system of thermal power plants, can solve the problems of increasing flue resistance, flue material consumption, difficulty in making full use of space everywhere, and large footprint , to achieve the effect of improving operating economy, avoiding white smoke, and reducing pressure loss

Active Publication Date: 2017-10-13
CHINA ENERGY ENG GRP GUANGDONG ELECTRIC POWER DESIGN INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is difficult to make full use of the space in the traditional layout after the dust collector
This arrangement not only occupies a large area, but also increases the flue resistance and the consumption of flue materials

Method used

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  • Flue gas system after dust collector with integration of desulfurization absorption tower and flue gas heat exchanger
  • Flue gas system after dust collector with integration of desulfurization absorption tower and flue gas heat exchanger
  • Flue gas system after dust collector with integration of desulfurization absorption tower and flue gas heat exchanger

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Embodiment Construction

[0030] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0031] like Figure 1 to Figure 2 As shown, the present invention proposes a flue gas system after the deduster in which the desulfurization absorption tower and the flue gas heat exchanger are integrated, including a double-row induced draft fan 100 communicated with the outlet of the dust collector, and a double-row induced draft fan 100 communicated with the double-row induced draft fan 100 The flue gas heat exchanger 300, the desulfurization absorption tower 500 integrally communicated with the flue gas heat exchanger 300, and the chimney 700 communicated with the flue gas heat exchanger 300, and the double row induced draft fan 100, The flue gas heat exchanger 300, the desulfurization absorption tower 500 and the chimney 700 are all arranged on the same straight line. The desulfurization absorption tower 500 is vertically arranged between the chi...

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Abstract

The invention discloses a desulfurizing absorption tower and flue gas heat exchanger integrated flue gas system behind a dust remover. The desulfurizing absorption tower and flue gas heat exchanger integrated flue gas system behind the dust remover comprises a double-row induced draft fan communicated with an outlet of the dust remover, a flue gas heat exchanger communicated with the double-row induced draft fan, a desulfurizing absorption tower integrally communicated with the flue gas heat exchanger and a chimney communicated with the flue gas heat exchanger. The desulfurizing absorption tower is vertically arranged between the chimney and the double-row induced draft fan, and outlets of the double-row induced draft fan both deviate from the desulfurizing absorption tower. The flue gas heat exchanger is arranged right above the desulfurizing absorption tower and comprises a gas inlet heat exchanger portion and a gas outlet heat exchanger portion which are respectively communicated with the two sides of the desulfurizing absorption tower, and the gas inlet heat exchanger portion and the gas outlet heat exchanger portion are integrated with the desulfurizing absorption tower. The desulfurizing absorption tower and flue gas heat exchanger integrated flue gas system behind the dust remover effectively utilizes space and save land, reduces flue resistant and flue material consumption and improves the operating economy of a power plant.

Description

technical field [0001] The invention relates to the technical field of flue gas systems in thermal power plants, in particular to a flue gas system after a dust collector integrating a desulfurization absorption tower and a flue gas heat exchanger. Background technique [0002] With the increasing environmental protection requirements of coal-fired thermal power plants, to avoid white smoke from the chimney, it is necessary to increase the exhaust temperature of the flue gas to effectively reduce the corrosion of the chimney and increase the climbing height of the flue gas in the chimney. The flue gas temperature can be increased by configuring the flue gas heat exchanger (GGH) equipment. Due to the addition of GGH equipment, the conventional layout of the flue gas system will greatly increase the land occupation of coal-fired power plants, and the distance from A to the centerline of the chimney in coal-fired power plant projects is one of the important land occupation indi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23L17/00F23J15/06F23J15/08F23J15/02F23J11/00
CPCF23J11/00F23J15/02F23J15/06F23J15/08F23J2215/20F23L17/005Y02E20/30
Inventor 杨劲范旭李伟科范永春
Owner CHINA ENERGY ENG GRP GUANGDONG ELECTRIC POWER DESIGN INST CO LTD
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