Suspension type swirling flow demisting system

A suspended and swirling technology, applied in separation methods, dispersed particle separation, chemical instruments and methods, etc., can solve the problems of high power consumption, easy to block the screen, and the reliability of the screen demister needs to be verified, etc., to achieve Effects of increasing reliability, avoiding corrosion or clogging

Pending Publication Date: 2018-03-27
上海电气电站环保工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The wire mesh has the highest demist removal efficiency, and the theoretical outlet concentration can reach 5mg / Nm 3 , but because there is gypsum in the flue gas at the outlet of the absorption tower, it is easy to block the screen, so the reliability of the screen demister needs to be verified
Electrostatic mist removal and dust removal efficiency is high, but it requires a lot of power consumption, and the investment and operation costs are too high

Method used

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  • Suspension type swirling flow demisting system
  • Suspension type swirling flow demisting system
  • Suspension type swirling flow demisting system

Examples

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Embodiment Construction

[0028] Such as Figure 1~5 As shown, a preferred embodiment of the present invention provides a suspension type cyclone defogging system, comprising a fixed beam 2 fixedly installed in the chimney 1 and a cyclone demisting device connected with the fixed beam 2, the cyclone demisting device The fog device is suspended below the fixed beam 2 . Wherein, the swirling flow defogging device includes one or more defogging components 3 and a plurality of defogging channels, and the defogging components 3 sequentially include a first wall 41, a first vane 6, a second wall 42 and a second vane from outside to inside. 5. The defogging channel includes a first channel 411 and a second channel 421. The first channel 411 is defined by the first wall 41, the first blade 6 and the second wall 42. The second channel 421 is defined by the second wall 42 and the second wall. Two blades 5 are defined. In this embodiment, since the swirling flow defogging device is installed in the chimney 1 in...

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Abstract

The invention discloses a suspension type swirling flow demisting system. The suspension type swirling flow demisting system comprises a fixed beam and a swirling flow demisting system, wherein the fixed beam is fixedly arranged in a chimney; the swirling flow demisting system is connected with the fixed beam, and is suspended under the fixed beam. The suspension type swirling flow demisting system has the advantages that because the swirling flow demisting system is suspended in the chimney, the formation of four corners by flue gas in the bottom support design in the prior art is avoided; the suspension type swirling flow demisting system can be installed in the existing chimney, so that no new occupied land exists, the energy source is not directly consumed, and the high-efficiency demisting is favorably realized by high flue gas flow rate in the chimney, inclining angle of blade after simulation and optimizing, and corrugated plate wall surface.

Description

technical field [0001] The invention relates to a high-efficiency defogging technology in a flue gas chimney of a coal-fired power plant, in particular to a hanging swirling defogging system. Background technique [0002] At present, the concentration of gypsum droplets at the outlet of the flue gas desulfurization absorption tower in coal-fired power plants is generally 100mg / Nm 3 Left and right, which contain pollutants such as gypsum, if they are not re-treated, they are directly discharged into the atmosphere, which will cause environmental problems such as gypsum rain. Conventional means of removing gypsum droplets include adding a mist eliminator layer in the absorption tower and wet electrostatic precipitator. Installing a demister layer inside the absorption tower will increase the height of the absorption tower and greatly increase the cost of the absorption tower. Wet electrostatic precipitator can remove gypsum and dust in the flue gas to a certain extent, but t...

Claims

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Application Information

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IPC IPC(8): B01D50/00B01D47/06B01D45/08
CPCB01D45/08B01D47/06B01D50/40Y02A50/2351
Inventor 郭士义杨载涛姜正雄尹俊杭逸斐
Owner 上海电气电站环保工程有限公司
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