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Phase change absorption condensation and peak shaving reheating white fog elimination system, and white fog elimination method

A whitening and peak shaving technology, applied in the whitening system field, can solve the problems of high energy consumption, large investment, and large land occupation, and achieve the effect of low energy consumption, low investment, and small land occupation

Pending Publication Date: 2019-01-22
HEIMDALLR SHANGHAI ENERGY SAVING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a new type of phase change technology to overcome the defects of high energy consumption, large area occupation, and large investment in the prior art of industrial flue gas after wet desulfurization and then traditional whitening and dehumidification. Whitening system and whitening method for absorption condensation and peak shaving reheating

Method used

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  • Phase change absorption condensation and peak shaving reheating white fog elimination system, and white fog elimination method
  • Phase change absorption condensation and peak shaving reheating white fog elimination system, and white fog elimination method
  • Phase change absorption condensation and peak shaving reheating white fog elimination system, and white fog elimination method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] (1) Whitening system with phase change absorption condensation and peak shaving reheating

[0070] Such as figure 1 The whitening system of phase change absorption condensation and peak regulation and reheating shown, the whitening system includes a desulfurization tower 10, a whitening unit 20, a first liquid storage tank 30 and a first cooler 40 of partition wall structure; the desulfurization tower 10 A first flue gas inlet 11 and a first flue gas outlet 12 are provided; the whitening unit 20 is provided with a second flue gas inlet and a second flue gas outlet 21; the first flue gas outlet 12 communicates with the second flue gas inlet; The whitening unit 20 is also provided with a whitening liquid circulation circuit, and the whitening liquid circulation circuit is provided with a first liquid storage tank 30 and a first cooler 40 according to the flow direction of the whitening liquid in the whitening liquid circulation circuit; The water precipitated by the whit...

Embodiment 2

[0088] (1) Whitening system with phase change absorption condensation and peak shaving reheating

[0089] Such as figure 2In the whitening system shown, the flue gas discharged from the second flue gas outlet 21 is directly discharged to the atmosphere, and the rest are the same as the whitening system of Embodiment 1.

[0090] (2) Whitening method of industrial flue gas

[0091] The whitening method comprises the following steps:

[0092] (1) The industrial flue gas sent in through the first flue gas inlet 11 is contacted with the desulfurization liquid in the desulfurization tower 10, and after the sulfur-containing substances in the industrial flue gas are removed, the flue gas after desulfurization is obtained;

[0093] (2) The flue gas after desulfurization is discharged through the first flue gas outlet 12, enters in the whitening unit 20 through the second flue gas inlet, and the flue gas after desulfurization is sent into the whitening liquid circulation loop in the...

Embodiment 3

[0098] (1) Whitening system with phase change absorption condensation and peak shaving reheating

[0099] Such as image 3 In the whitening system shown, the flue gas discharged from the second flue gas outlet 21 is directly discharged to the atmosphere, and a third spray pipe is also arranged above the second spray pipe in the desulfurization tower 10, the second spray pipe and the third spray pipe There is also a third filling device between the spray pipes; the whitening system is also provided with a second desulfurization system leading from the second liquid storage tank 80 to communicate with the hot fluid channel of the second cooler 100 and the third spray pipe in turn. Liquid circulation circuit; All the other are with the whitening system of embodiment 2.

[0100] (2) Whitening method of industrial flue gas

[0101] The whitening method comprises the following steps:

[0102] (1) The industrial flue gas sent in through the first flue gas inlet 11 is contacted wit...

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Abstract

The invention discloses a phase change absorption condensation and peak shaving reheating white fog elimination system, and a white fog elimination method. The white fog elimination system comprises adesulfurization tower, a white fog elimination unit, a first liquid storage tank and a first cooler; the desulfurization tower is provided with a first flue gas inlet and a first flue gas outlet; thewhite fog elimination unit is provided with a second flue gas inlet and a second flue gas outlet; the first flue gas outlet is communicated with the second flue gas inlet; the white fog elimination unit is further provided with a white fog liquid circulation loop, and the white fog liquid circulation loop is provided with the first liquid storage tank and the first cooler; and the white fog elimination system is further provided with a water supply pipeline for returning water separated out from the white fog elimination unit into the desulfurization tower. The white fog elimination system and the white fog elimination method have the advantages of simple device, low running cost, stability in running, low energy consumption, small occupied land, less investment, significant reduction ofthe dew point of flue gas at the outlet of the white fog elimination unit, realization of white fog elimination an outside temperature of -5 DEG C or above, and realization of the comprehensive effects of desulfurization, white fog elimination and dust removal; and the water recovered from the white fog elimination unit is directly applied to water supply of the desulfurization tower, so energy and water are saved.

Description

technical field [0001] The invention relates to a whitening system and a whitening method for phase change absorption condensation and peak adjustment reheating. Background technique [0002] At present, the flue gas discharged from industrial furnaces such as power boilers in coal-fired power plants, spent alkali furnaces, and hydrogen production furnaces basically undergoes wet desulfurization to remove sulfur in the flue gas. Slurry contact will absorb a large amount of water, and the dew point of the flue gas discharged from desulfurization is relatively high. When it passes through the chimney and is discharged into the atmosphere, a large amount of white smoke will be generated, which will also cause serious corrosion to the inner wall of the chimney. Water vapor in the flue gas can also adversely affect the spread of the flue gas. Part of the gaseous water vapor and dust particles in the flue gas will condense, forming mist water vapor at the chimney mouth, forming a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/00B01D53/78B01D53/50F23J15/06F23J15/08
CPCB01D53/002B01D53/507B01D53/78F23J15/06F23J15/08B01D2251/2062B01D2258/0283
Inventor 马元张林白亮黄文乐
Owner HEIMDALLR SHANGHAI ENERGY SAVING TECH