Dynamic jet flow energy-saving demister

A demister and jet technology, applied in the direction of chemical instruments and methods, dispersed particle separation, combined devices, etc., can solve the problems of poor corrosion resistance, easy scaling, inconvenient washing, etc., to increase the collection area, improve the collection The effect of collecting efficiency and reducing pressure drop loss

Inactive Publication Date: 2011-06-15
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, due to the unreasonable internal structure of these traditional mist eliminators, the trapping effect is poor, the washing is inconvenient and easy to scale, the corrosion resistance is also poor, and it is easy to cause secondary entrainment, etc., which brings hidden dangers to the subsequent production process

Method used

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  • Dynamic jet flow energy-saving demister
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  • Dynamic jet flow energy-saving demister

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment one: see figure 1 with figure 2 , the dynamic jet energy-saving mist eliminator, including the tower body 8 of the absorption tower, the upper part of the inner cavity of the tower body 8 is equipped with two layers of dynamic jet defogging mechanism, each layer of dynamic jet defogging mechanism includes four purification units, one "米" character supporting part 1 and the connecting piece 2 fixedly connected with the tower body 8, each said purifying unit consists of a rotating drainage body 3, a plurality of blades 4 with inclined angles connected around the rotating drainage body, The cover bar 5 connected with the outer end of the blade and the controllable water spray device installed on the "rice" character support part 1 constitute.

Embodiment 2

[0026] Embodiment 2: This embodiment is basically the same as Embodiment 1, and the more detailed structure is described in detail as follows: the four purification units are evenly distributed on the same circular surface in the circumferential direction, and are fixedly installed on the "rice" character support member 1 respectively. The ends of the other four poles of the "meter" character supporting part 1 are fixedly connected with the tower body 8 through the connecting piece 2. There are 45 o rotation staggered. The structure of the rotating drainage body 3: an upper cone is connected to a lower cone through a middle cylinder, and the apex angle between the upper cone and the lower cone is 90° o ~150 o , the middle cylinder is fixedly connected with the blade 4 . The blade 4 has an elevation angle b with the horizontal plane, and the elevation angle b=8 o ~16 o . The controllable water spraying device is to fix a water delivery pipe 7 on the pole on which the rota...

Embodiment 3

[0027] Embodiment three: as figure 2 As shown, the dynamic jet energy-saving mist eliminator has two layers, and each layer includes four purification units, a "meter" character supporting part 1 and a connecting part 2 with the tower body. Each purification unit consists of a rotating drainage body 3, a plurality of blades 4 with inclined angles connected around the rotating drainage body, a cover fence 5 connected to the outer end of the blades, and a controllable water spray device (water delivery pipe 7 and nozzle 6). composition. The four purification units are arranged in four positions up, down, left, and right in the same circular surface, and are supported by four support rods drawn from the center of the "meter" character support part 1. The inclination angle between the support rod and the horizontal direction is 10 o , it is convenient for the liquid on the support bar to gather toward the center and fall into the slurry pool. Place the water delivery pipe 7 on ...

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Abstract

The invention relates to a dynamic jet flow energy-saving demister, which comprises a tower body, wherein two layers of dynamic jet flow demisting mechanisms are arranged on the upper part of the inner cavity of the tower body; and each layer of dynamic jet flow demisting mechanism comprises four purifying single bodies, a supporting part shaped like a Chinese character 'mi' and a connect part for connection with the tower body. Each purifying single body consists of a rotary flow guide body, a plurality of inclined blades connected to the periphery of the rotary fluid guide body, cover columns connected with the outer ends of the blades, and a controllable water spray device (a water pipe and a spray nozzle). In the invention, rotary blades are used in place of a wire screen or deflector plate in the conventional demister, so equipment resistance is reduced and demising efficiency is improved. The dynamic jet flow energy-saving demister has the characteristics of low cost, scaling prevention, high stability, secondary entrainment prevention and the like. Thus, the desulfurization efficiency of the absorption tower is improved, and the demister is suitable to demist and purify industrial boiler flue gas.

Description

technical field [0001] The invention relates to a purification device for flue gas of industrial coal-fired boilers, in particular to a dynamic jet flow energy-saving demister, which is suitable for removing water droplets or liquid-phase mist droplets in flue gas in wet flue gas desulfurization systems of coal-fired boilers. Background technique [0002] The demister is used to separate the liquid droplets entrained by the gas in the tower to ensure the mass transfer efficiency, reduce the loss of valuable materials and improve the operation of the compressor behind the tower. Generally, a demister is installed on the top of the tower. It can effectively remove 3-5um mist droplets, so the demister is mainly used for gas-liquid separation. [0003] During the operation of the absorption tower of wet flue gas desulfurization, it is easy to generate "fog" with a particle size of 10-60 microns. "Fog" not only contains water, but also dissolves sulfuric acid, sulfate, SO 2 Wait...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/78B01D50/00B01D53/50
Inventor 万皓袁义邵申何仁初江舒产文兵孙在柏
Owner SHANGHAI UNIV
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