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Fume automatic ventilated spraying system for adsorption tower

A technology of automatic cooling and spraying system, applied in the field of spraying system, can solve the problems of damage to the anti-corrosion rubber lining of the absorption tower and the components of the FRP pipe demister in the spraying layer, etc., and achieve the effect of saving manpower and ensuring safety.

Inactive Publication Date: 2008-04-23
CHINA SHENHUA ENERGY CO LTD +1
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] However, in a desulfurization system without a bypass flue, the absorption tower becomes a necessary passage for the boiler flue gas. If the flue gas entering the absorption tower cannot meet the temperature conditions, it will damage the anti-corrosion lining and spray paint inside the absorption tower. Laminated FRP pipes, demister components, etc.

Method used

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  • Fume automatic ventilated spraying system for adsorption tower
  • Fume automatic ventilated spraying system for adsorption tower

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Embodiment Construction

[0031] Embodiments of the present invention will be described below with reference to the accompanying drawings.

[0032] In the flue gas automatic cooling spraying system for the absorption tower of the present invention, the flue gas automatic cooling spraying system includes: a spraying subsystem and a control subsystem.

[0033] As shown in Figure 1, the spray subsystem has: an emergency cooling water tank 5 for water storage; a spray main pipe 3 connected to the emergency cooling water tank 5 at one end, and the spray main pipe 3 has at least one automatic valve 4a; The other end of the spray main pipe 3 is connected to the spray device 2, the spray device 2 is arranged in the flue 1 before the entrance of the absorption tower, and has a plurality of nozzles 2a. In practical applications, in order to achieve a more secure and tighter seal when closed, the shower main pipe 3 may also have another automatic valve 4b. Moreover, the control subsystem and the automatic valves...

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Abstract

The present invention provides a flue gas automatic-cooling spray system for absorption column. Said flue gas automatic-cooling spray system includes spray subsystem and control subsystem. Said spray subsystem includes failure cooling water tank for storing water; spray main pipe whose one end is connected with said failure cooling water tank, said spray main pipe has at least one automatic valve; spray device connected with another end of spray main pipe, said spray device is placed in the flue stack before absorption column inlet, and has several nozzles. The described control subsystem includes a sensing device for detecting flue gas state in the flue stack before absorption column inlet and a control device which is connected with the sensing device and can be used for controlling automatic valve on the spray main pipe according to the signal given out from sensing device.

Description

technical field [0001] The invention relates to a spraying system, in particular to a spraying system for automatically cooling flue gas in an absorption tower. Background technique [0002] In the absorption tower of the power plant, in order to ensure the safe and stable operation of the desulfurization system, the conventional desulfurization design requires that the flue gas entering the absorption tower must meet certain conditions, especially certain temperature conditions, and the anti-corrosion rubber lining inside the absorption tower must not be damaged. , spray layer FRP pipes, demister components, etc. [0003] When the flue gas temperature of the boiler rises abnormally or all the slurry circulating pumps are out of operation, the high temperature flue gas is not allowed to enter the absorption tower, but enters the chimney through the flue gas bypass and is discharged into the atmosphere, thereby protecting the absorption tower. [0004] However, in a desulfur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/78B01D53/50
Inventor 蒋丛进王文杰周洪光
Owner CHINA SHENHUA ENERGY CO LTD
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