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Dust remover rear flue gas system provided with flue gas heat exchanger

A flue gas heat exchanger and heat exchanger technology, applied in the direction of waste gas exhaust device, climate sustainability, reduction of greenhouse gases, etc., can solve the problems of large land occupation, increased flue resistance, flue material consumption, etc., to achieve Reduce pressure loss, improve operating economy, and smooth flue connection

Active Publication Date: 2016-06-01
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

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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  • Dust remover rear flue gas system provided with flue gas heat exchanger
  • Dust remover rear flue gas system provided with flue gas heat exchanger
  • Dust remover rear flue gas system provided with 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] Such as figure 1 As shown, a flue gas system after a dust collector equipped with a flue gas heat exchanger includes a double-row induced draft fan 100 communicated with the outlet of the dust collector, a flue gas heat exchanger 300 communicated with the double-row induced draft fan 100, and The desulfurization absorption tower 500 communicated with the flue gas heat exchanger 300, and the chimney 800 communicated with the flue gas heat exchanger 300, and the double row induced draft fan 100, flue gas heat exchanger 300, desulfurization absorption tower 500 and the chimney 800 are all arranged on the same straight line. The desulfurization absorption tower 500 and the chimney 800 are vertically arranged side by side, and the double-row induced draft fan 100 and the flue gas heat exchanger 300 are arranged between the chimney 800 and the desulf...

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Abstract

The invention discloses a dust remover rear flue gas system provided with a flue gas heat exchanger. The system comprises two columns of induced draft fans communicated with a dust remover outlet, the flue gas heat exchanger communicated with the two columns of induced draft fans, a desulfurization absorption tower communicated with the flue gas heat exchanger, and a chimney communicated with the flue gas heat exchanger. The two columns of induced draft fans, the flue gas heat exchanger, the desulfurization absorption tower and the chimney are all arranged on the same straight line. The desulfurization absorption tower and the chimney are vertically arranged side by side. The two columns of induced draft fans and the flue gas heat exchanger are arranged between the chimney and the desulfurization absorption tower. The flue gas heat exchanger is arranged above the two columns of induced draft fans and comprises a gas inlet heat exchanger part communicated with one end of the desulfurization absorption tower, and a gas outlet heat exchanger part communicated with the other end of the desulfurization absorption tower. The gas inlet heat exchanger part and the gas outlet heat exchanger part are arranged into a whole. The dust remover rear flue gas system provided with the flue gas heat exchanger effectively utilizes space, the occupied land is saved, flue resistance and flue material consumption are reduced, and operating economy of a power plant is improved.

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 equipped with 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 indicators. Most of the equipment in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23J15/00F23J15/02F23J15/06F23J13/04
CPCF23J13/04F23J15/00F23J15/02F23J15/06F23J2215/20Y02E20/30
Inventor 范旭杨劲潘灏马雪松
Owner CHINA ENERGY ENG GRP GUANGDONG ELECTRIC POWER DESIGN INST CO LTD
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