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Arrangement for sprinkling and pre-washing flue gas in entrance of flue gas-desulfurizing absorption tower

A desulfurization absorption tower and pre-washing technology, which is applied to the separation of dispersed particles, chemical instruments and methods, separation methods, etc., to achieve the effects of convenient construction, easy implementation, and reduced number of operations

Active Publication Date: 2006-10-11
BEIJING GUODIAN LONGYUAN ENVIRONMENTAL ENG +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a flue gas desulfurization absorption tower inlet flue gas spray pre-washing device, to solve the problem of further improving the desulfurization efficiency and further saving energy consumption of the traditional flue gas desulfurization spray washing device under the condition of less investment technical problem

Method used

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  • Arrangement for sprinkling and pre-washing flue gas in entrance of flue gas-desulfurizing absorption tower
  • Arrangement for sprinkling and pre-washing flue gas in entrance of flue gas-desulfurizing absorption tower

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Embodiment Construction

[0020] Examples see figure 1 and 2 The flue gas spray pre-washing device is installed in the flue 2 of the flue gas inlet of the absorption tower 1, and the expansion joint 7 can be arranged on the flue 2. The flue gas spraying pre-washing device is divided into spraying sub-pipes 4 from the spraying main pipe 3, and the spraying sub-pipes are connected to the nozzles 5 at intervals. The spray sub-pipe is perpendicular to the flue gas flow, inserted into the flue from above the flue, and the nozzles are evenly connected to both sides of the spray sub-pipe.

[0021] The spray sub-pipe 4 is flange-connected with the pipe interface 6 connected outside the flue wall. The interval between the spraying sub-pipes is 1-2 meters.

[0022] The diameter of the spray main pipe 3 decreases gradually or in steps along the downstream direction. Spray main pipe 4 is made of 316L stainless steel pipe lined with glass flake layer to prevent the slurry from corroding the pipe.

[0023] The ...

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Abstract

The invention relates to a spray pre-washing device for treating the smoke at the inlet of smoke desulfuration adsorption tower. Said invention is arranged inside the inlet smoke channel of adsorption tower and separated by spray main tubes into spray sub-tubes; the spray sub-tubes are distantly connected to the injectors; the spray main tube is arranged above the ascending smoke chamber of smoke inlet; the spray sub-tubes are vertical to the direction of smoke and inserted into the smoke channel from the upper part of smoke channel; the injectors are uniformly connected to two sides of spray sub-tubes. The invention has the advantages that: via smoke pre-washing inside the smoke channel, it can improve the desulfuration efficiency of completed adsorption tower; and it can reduce the temperature in the pre-washing process on the completed or built adsorption tower, to reduce the number of spray layer with lower load to reduce the energy consumption.

Description

(1) Technical field [0001] The invention relates to a flue gas desulfurization spray washing device. (two), background technology [0002] Power plants and industrial boilers usually use fossil fuels such as coal and oil. These fossil fuels generally contain sulfur components, which will produce harmful substances such as sulfur dioxide during the combustion process. In order to remove sulfur dioxide in boiler flue gas, limestone-gypsum wet flue gas desulfurization devices are widely used in large power plant boilers. One of the important parts of the existing wet flue gas desulfurization device is the flue gas desulfurization spray washing device. The traditional device has no good solution for the flue gas with relatively high sulfur content, and can only use the method of continuously increasing the number of spray layers. Strategy, so as to continuously increase the height of the absorption tower, to ensure the desulfurization efficiency, it will inevitably increase the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/50B01D53/78
Inventor 徐凤刚陈振宇高建民
Owner BEIJING GUODIAN LONGYUAN ENVIRONMENTAL ENG
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