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A method for obtaining the height of the integrated chimney of the indirect air-cooled unit

A chimney height, air-cooling unit technology, applied in computer-aided design, instrument, geometric CAD, etc., can solve the problems of flue gas corrosion to the inner wall of the air-cooling tower, flue gas retention, low airflow velocity, etc., to achieve compact model, easy to operate, simple steps

Active Publication Date: 2021-02-12
京能秦皇岛热电有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, the air velocity in the air cooling tower is very low. According to the usual chimney height design, the flue gas may stay in the air cooling tower for a long time, which will cause the corrosion of the inner wall of the air cooling tower by the flue gas.

Method used

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  • A method for obtaining the height of the integrated chimney of the indirect air-cooled unit
  • A method for obtaining the height of the integrated chimney of the indirect air-cooled unit
  • A method for obtaining the height of the integrated chimney of the indirect air-cooled unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] Example 1: Place a chimney simulating a height of 56m in a recirculation wind tunnel, place a transparent cooling tower model in the chimney, supply heat in winter, and operate with one unit without mixing air. Tested under the conditions of 5m / s, 6m / s and 9m / s, other specific experimental parameters are shown in the table above.

Embodiment 2

[0072] Example 2: Place a simulated chimney with a height of 56m in a recirculation wind tunnel, place a transparent cooling tower model in the chimney, supply heat in winter, operate a unit, and mix air, successively at a wind speed of 5m / s, 6m / s and 9m / s conditions, other specific experimental parameters are shown in the table above.

Embodiment 3

[0073] Embodiment 3: Place the chimney with a simulated height of 56m in the recirculation wind tunnel, place the transparent cooling tower model in the chimney, supply heat in winter, and operate two units without mixing air. Tested under the conditions of 5m / s, 6m / s and 9m / s, other specific experimental parameters are shown in the table above.

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Abstract

A method for obtaining the height of the integrated chimney of an indirect air-cooled unit, which uses wind tunnel physical simulation to obtain the height of the chimney: put the cooling tower model and the chimney model in the wind tunnel, and under different ambient wind speeds and chimney heights, use The method of releasing tracer smoke, observing and recording the uplift, diffusion and discharge of the smoke in the cooling tower, qualitatively determine the optimal chimney height; use the particle image velocity field instrument to measure the velocity distribution of the airflow and smoke in the tower, quantitatively This method can qualitatively determine the optimal chimney height under different ambient wind speeds, chimney height conditions and different working conditions, and quantitatively obtain different heights of chimneys under different conditions. The smoke exhaust condition is simple, the operation is quick, the experimental process is intuitive, and the optimal height of the chimney can be accurately obtained.

Description

technical field [0001] The invention relates to the technical field of smoke exhaust in thermal power plants, in particular to a method for obtaining the height of a combined chimney of an indirect air cooling unit. Background technique [0002] Chimney tower integration technology, that is, cancel the chimney in the thermal power plant, send the desulfurized flue gas into the natural draft cooling tower and discharge it into the atmosphere together with the cooling tower airflow. The flue gas tower integration technology uses the huge hot and humid air updraft of the cooling tower to wrap and lift the desulfurized net flue gas, thereby promoting the diffusion of pollutants in the flue gas. Adopting this technology can omit the reheater and chimney of the wet flue gas desulfurization system of the thermal power plant, which greatly simplifies the flue gas system of the thermal power plant and reduces equipment investment. [0003] The smoke tower integration technology orig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/17G06F30/20G06F111/10G06F113/08
Inventor 鲁凤鹏郝天明薛常海丁力田文鑫孙宝泉孙志强马彬李彬赵峰赵光士
Owner 京能秦皇岛热电有限公司
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