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Efficiency increasing device and method for desulfurizing absorption tower

A desulfurization absorption tower and tower wall technology, applied in the field of desulfurization, can solve the problems of reducing the flow area of ​​the absorption tower, and achieve the effects of reducing desulfurization power consumption, improving desulfurization efficiency, and reducing liquid-gas ratio

Inactive Publication Date: 2018-12-25
DATANG ENVIRONMENT IND GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above-mentioned technical problems, the present invention provides a desulfurization absorption tower efficiency raising device and an efficiency raising method. Solve the problem of reducing the flow area of ​​the absorption tower, increasing the flue gas flow rate, and improving the desulfurization efficiency when the boiler is operating at low load, reducing the liquid-gas ratio, reducing the number of operating slurry circulation pumps, and reducing desulfurization power consumption

Method used

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  • Efficiency increasing device and method for desulfurizing absorption tower
  • Efficiency increasing device and method for desulfurizing absorption tower
  • Efficiency increasing device and method for desulfurizing absorption tower

Examples

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Embodiment 1

[0023] Example 1, such as Figure 1-3 As shown, a desulfurization absorption tower efficiency improvement device is installed inside the desulfurization absorption tower. The desulfurization absorption tower also includes several spray layers installed inside the desulfurization absorption tower. An efficiency improvement device is arranged under each spray layer , characterized in that,

[0024] The efficiency raising device is circular and placed horizontally, its outer diameter corresponds to the inner diameter of the desulfurization absorption tower, and each efficiency raising device includes several efficiency raising units 1 uniformly arranged along its circumferential direction;

[0025] Each efficiency raising unit includes a blade 4 and a rotating shaft 3 arranged along the central axis of the blade 4. One end of the rotating shaft 3 passes through the tower wall of the desulfurization absorption tower and is connected to the rotation control device 6. The other end ...

Embodiment 2

[0030] Embodiment 2, the efficiency raising method of the desulfurization absorption tower efficiency raising device described in the first embodiment, comprising:

[0031] When the boiler is running at full load, the rotation control device 6 controls the rotation of the rotating shaft 3, controls the blades 4 of all the efficiency raising units 1 to stand up, and the flow area of ​​the desulfurization absorption tower is the largest;

[0032] When the boiler is running at low load, the rotation control device 6 controls part or all of the rotating shaft 3 of the efficiency raising unit 1, and controls the blades 4 of the efficiency raising unit 1 to be placed horizontally or arranged at a uniform angle with the horizontal direction, and controls the flow area of ​​the desulfurization absorption tower , to ensure the flue gas flow rate, and at the same time close part of the slurry circulation pump to control the liquid-gas ratio in the absorption tower to meet the requirement...

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Abstract

The invention provides an efficiency increasing device and method for a desulfurizing absorption tower. The efficiency increasing device is annular and is horizontally arranged, and the outer diameterof the efficiency increasing device corresponds to the inner diameter of the desulfurizing absorption tower. Each efficiency increasing device comprises a plurality of efficiency increasing units which are uniformly arranged along the circumference direction of the efficiency increasing device, each efficiency increasing unit comprises a blade and a rotary shaft arranged along the central axis ofthe blade, and one end of the rotary shaft penetrates the wall of the desulfurizing absorption tower to be connected with a rotation control device. The efficiency increasing device has the advantages that the absorption tower flow area is reduced during the low-load operation of a boiler, the flow velocity of flue gas is increased, desulphurization efficiency is increased, liquid-gas ratio is lowered, the number of operating slurry circulating pumps is reduced, and desulfurizing power consumption is lowered.

Description

technical field [0001] The invention relates to the technical field of desulfurization, in particular to an efficiency raising device and an efficiency raising method for a desulfurization absorption tower. Background technique [0002] For the existing desulfurization system, since the diameter of the desulfurization absorption tower is fixed, when the boiler load decreases and the flue gas volume decreases, the flue gas flow rate in the absorption tower will decrease, which will increase the liquid-gas ratio required for desulfurization. Although the flue gas Gas volume decreases, but the number of slurry circulation pumps required to achieve the predetermined desulfurization effect will not decrease with the decrease of desulfurization load, resulting in the need to open more slurry circulation pumps under low load, increasing desulfurization power consumption and affecting desulfurization System optimization operation. Contents of the invention [0003] In order to so...

Claims

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Application Information

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IPC IPC(8): B01D53/80B01D53/48B01D53/96
CPCB01D53/48B01D53/80B01D53/96B01D2258/0283
Inventor 孙轶敏王凤荣杨春雨魏新卫天尧李雯汪作胜徐岩孙叶朱骏程高蔡亚东孙健
Owner DATANG ENVIRONMENT IND GRP