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Dual-scale dynamic homogenizing system for flow field

A dual-scale and dynamic technology, applied in chemical instruments and methods, gas treatment, membrane technology, etc., can solve problems such as insufficient gas phase rectification, inability to affect gas phase distribution, and large system resistance, so as to achieve short renovation period and full scale The effect of regulating and reducing consumption

Active Publication Date: 2018-09-18
GUODIAN SCI & TECH RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the former cannot affect the gas phase distribution, and the latter has problems such as large system resistance and insufficient gas phase rectification.

Method used

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  • Dual-scale dynamic homogenizing system for flow field
  • Dual-scale dynamic homogenizing system for flow field
  • Dual-scale dynamic homogenizing system for flow field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] In this case, for example figure 1 , figure 2 As shown, the flow field dual-scale dynamic homogenization system of the present invention includes horizontal and vertical dynamic rectification components and a fixed flow guide unit, wherein both the horizontal and vertical dynamic rectification components include a flow field adjustment unit and a feedback control unit. Among them, the transverse flow field adjustment unit 2 is set in the straight flue section B, the fixed flow guide unit 4 is set in the turning flue section C, and the longitudinal flow field adjustment unit 6 is set in the connecting flue section D in front of the tower. Since the large aspect ratio of the rectangular flue in front of the absorption tower will aggravate the inhomogeneity of the transverse dimension of the flow field, the transverse flow field adjustment unit 2 is set upstream to ensure a longer homogenization time. The fixed flow guide unit 4 is used to assist the diversion of the flu...

Embodiment 2

[0040] In this example, the length of the connecting flue D in front of the tower is more than four times the nominal diameter of the flue, no fixed flow guide unit is installed, and the transverse flow field adjustment unit is installed on the connecting flue in front of the tower, located at the side of the longitudinal flow field adjustment unit upstream. All the other settings are the same as in Embodiment 1. The flue gas enters the absorption tower A after passing through the transverse flow field adjustment unit and the longitudinal flow field adjustment unit in turn.

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Abstract

The invention, specific to the problem that a flue gas flow field in an absorption tower is nonuniform so that desulfurizing reaction efficiency is decreased, provides a dual-scale dynamic feedback homogenizing system for a flow field. The system comprises a horizontal dynamic rectification component, a longitudinal dynamic rectification component and a fixed diversion unit, wherein the horizontaldynamic rectification component and the longitudinal dynamic rectification component both comprise a flow field adjusting unit and a feedback control unit; the system is installed at an upstream flueof the inlet of the absorption tower, a longitudinal flow field adjusting unit is installed at an inlet segment, which is close to the adsorption tower, of a joining flue in front of the tower, a horizontal flow field adjusting unit is arranged at the upstream of the vertical flow field adjusting unit, and the fixed diversion unit is installed in a swerving flue in front of the tower; the flow field adjusting unit is provided with a blade group for adjusting a flow field, the feedback control unit is used for collecting flow field information at the downstream of the flow field adjusting unit, the angle of deflection of the blade group is adjusted according to feedback information, and the system can be used for realizing homogenizing adjustment of the flow field.

Description

Technical field: [0001] The invention provides a flow field dual-scale dynamic homogenization system, which belongs to the field of resource and environment flue gas purification. Background technique: [0002] At present, the capacity of flue gas desulfurization units in thermal power plants accounted for 93% of the capacity of coal-fired power units, of which the limestone-gypsum method and seawater method combined accounted for 95.45%. Restricted by the site conditions behind the boiler, most of the desulfurization towers are arranged in a continuous and sharp bend, which is different from the design requirements of the flue gas pulverized coal pipeline in thermal power plants. In recent years, as the emission standards of coal-fired power plants have been continuously tightened, major layout adjustments have taken place in the flue system upstream of the desulfurization tower, which has intensified the uneven distribution of flue gas in the flue. This situation leads ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/50B01D53/74B01D53/78B01D53/80
CPCB01D53/346B01D53/50B01D53/502B01D53/504B01D53/74B01D53/78B01D53/80B01D2258/0283B01D2251/404
Inventor 王宏亮许月阳管一明薛建明裴杰段玖祥易玉萍张文杰李军状
Owner GUODIAN SCI & TECH RES INST
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