Unlock instant, AI-driven research and patent intelligence for your innovation.

Desulfurizing tower and chimney integration device

A desulfurization tower and chimney technology, which is applied in the field of desulfurization tower and chimney integrated device, can solve the problems of large flue gas flow resistance, long flue, clean flue and its support cost, and reduce flue gas resistance and manufacturing cost Reduce and save the effect of smoke exhaust power consumption

Pending Publication Date: 2018-07-31
NORTH CHINA POWER ENG
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] But the defects are also obvious: the clean flue 31 after desulfurization enters the chimney 1 at a high position, and the space at the bottom of the chimney 1 is not fully and effectively utilized, resulting in waste; the flue gas at the top outlet of the desulfurization tower 2 can only be received by turning two 90-degree bends The inner tube of the chimney has a large flow resistance of the flue gas; the flue between the outlet of the desulfurization tower 2 and the chimney 1 is very long, the anti-corrosion requirements are high, and the cost of the clean flue and its support is high; the floor area is large

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Desulfurizing tower and chimney integration device
  • Desulfurizing tower and chimney integration device
  • Desulfurizing tower and chimney integration device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] 300,000-kilowatt coal-fired heating unit project, two 350MW supercritical coal-fired units, wet desulfurization, one furnace and one tower, the diameter of the desulfurization tower is 13m, and the height of the tower is 33m. The two units share a 210m chimney, the bottom inner diameter of the outer cylinder of the chimney is 20m, and the inner diameter of the top is 10.6m. The chimney uses a single bundled inner cylinder with a diameter of 7.8m;

[0037] To adopt the combined device of the desulfurization tower and the chimney of this patent, the diameter of the lower part of the outer cylinder of the chimney needs to be expanded to about 45m, and the height of the lower part is more than 35m. It can be restored to the normal cylinder diameter (15m) at an elevation of about 55m. Between 35m and 55m, a structural transition layer is used for transition, and the flue gas at the outlet of the desulfurization tower is pushed out and merged, and then connected to the inner ...

Embodiment 2

[0039] 600,000-kilowatt coal-fired unit project, two 660MW ultra-supercritical coal-fired units, wet desulfurization, one furnace and one tower, the diameter of the desulfurization tower is 16.8m, and the height of the tower is 44m. The two units share a 240m chimney. The inner diameter of the chimney outer cylinder is 30.4m at the bottom and 13.4m at the top. The chimney uses a single cluster inner cylinder with a diameter of 10.5m;

[0040] To adopt the combined device of the desulfurization tower and the chimney of this patent, the diameter of the lower part of the outer cylinder needs to be expanded to about 51m, and the height of the lower part is more than 45m. It can be restored to the normal cylinder diameter (22.6m) at an elevation of about 65m. Between 45m and 65m, a structural transition layer is used for transition, and the flue gas at the outlet of the desulfurization tower is pushed out and merged, and then connected to the inner tube of the chimney.

Embodiment 3

[0042] 1 million kilowatt-class coal-fired unit project, two 1000MW ultra-supercritical coal-fired units, wet desulfurization, one furnace and one tower, the diameter of the desulfurization tower is 22.2m, and the height of the tower is 44m. The two units share a 240m chimney, the bottom inner diameter of the outer cylinder of the chimney is 35.5m, and the inner diameter of the top is 21.2m. The chimney adopts a double cluster inner cylinder with a diameter of 9.0m;

[0043] To adopt the combination device of the desulfurization tower and the chimney of this patent, the diameter of the lower part of the outer cylinder needs to be expanded to 64m, and the height of the lower part is more than 45m. It can be restored to the normal cylinder diameter (27.4m) at an elevation of about 70m. Between 45m and 70m, a structural transition layer is used for transition, and the flue gas at the outlet of the desulfurization tower is ejected and connected to the inner tube of the chimney.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a desulfurizing tower and chimney integration device which comprises a chimney and at least one desulfurizing tower arranged in the chimney. An enlarging part with the diameter being larger than the upper part of the chimney is arranged on the lower part of the chimney; a desulfurizing tower body is arranged in the enlarging part; the enlarging part of the chimney and theupper part of the chimney are in transition by adopting a structural transfer floor; an exhaust cylinder(s) of one or more desulfurizing towers in the chimney extend(s) upwards along the chimney, or extend(s) upwards along the chimney after joining; and the enlarging part of the chimney is of a cylindrical structure, or the bottom part of the chimney is of a herringbone column structure. Accordingto the integration device provided by the invention, an idle space on the lower part of the chimney can be effectively utilized, so that a gas purification flue at an outlet of the desulfurizing tower is omitted, the cost of the gas purification flue and a support is reduced, the flue gas resistance is further reduced, the smoke exhaust power consumption is saved, and the furnace rear occupationis optimized. In the north cold area, the lower part of the chimney can adopt a sealed structure, so that the cold and freezing protection of related desulfurizing accessory equipment and pipelines isfacilitated.

Description

technical field [0001] The invention relates to an integrated device of a desulfurization tower and a chimney in a thermal power plant. Background technique [0002] Boiler exhaust must be purified before being discharged through the chimney. The necessary purification process includes dust removal, desulfurization, denitrification, etc. Since coal contains sulfur, the flue gas produced after coal combustion in the boiler must contain SO 2 , must be removed before being discharged into the atmosphere. Therefore, the desulfurization device is an essential environmental protection facility for coal-fired generating units. [0003] At present, the most mainstream boiler flue gas desulfurization process in the world is wet desulfurization. The flue gas after wet desulfurization is wet saturated flue gas. Its flow characteristics, corrosion characteristics and further flue gas treatment are very difficult. Therefore, from the flue gas flow In general, desulfurization is gener...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F23J15/00F23J15/02
CPCF23J15/006F23J15/02F23J2215/20
Inventor 刘闯王勇强李兴利彭红文陈磊
Owner NORTH CHINA POWER ENG