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Wetted wall venturi scrubber with a 2-stage venturi throat

a scrubber and venturi throat technology, applied in the direction of combustible gas purification/modification, heating types, separation processes, etc., can solve the problems of abnormal increase of pressure drop and unstable operation, and achieve the effect of avoiding clogging in the throa

Inactive Publication Date: 2013-02-14
NAT CHIAO TUNG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The design effectively prevents throat clogging, reduces manufacturing time and costs, and maintains high particle removal efficiency by ensuring continuous flow of scrubbing fluid along the converging section's inner wall, avoiding excessive fluid passage through the throat and abnormal pressure drops.

Problems solved by technology

Accumulation of particles in the converging section results in throat clogging, thereby causing operation instability and abnormal increase of pressure drop.

Method used

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  • Wetted wall venturi scrubber with a 2-stage venturi throat
  • Wetted wall venturi scrubber with a 2-stage venturi throat
  • Wetted wall venturi scrubber with a 2-stage venturi throat

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Embodiment Construction

[0021]Referring to FIGS. 1-3, a wetted wall venturi scrubber with a 2-stage venturi throat 10 in accordance with a first embodiment of the present invention is shown comprising a venturi tube 20, two scrubbing fluid conduits 30, a scrubbing fluid tank 40, an atomized sprayer 50 and two overflow gutters 60.

[0022]The venturi tube 20 comprises a converging section 22, a diverging section 24 and a throat 26. The throat 26 is connected between the converging section 22 and the diverging section 24 with its boundary wall extended to the inside of the converging section 22. The converging section 22 has a gas inlet 221 formed in its one end remote from the throat 26. The diverging section 24 has a gas outlet 241 formed in its one end remote from the throat 26.

[0023]The two scrubbing fluid conduits 30 each have a top end 32 connected with the bottom side of the converging section 22 of the venturi tube 20, and a bottom end 34 connected with the scrubbing fluid tank 40.

[0024]During fabricati...

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Abstract

A venturi scrubber, which avoids clogging in the throat by dust particles, includes a venturi tube, two scrubbing fluid conduits and a scrubbing fluid tank. The venturi tube has a converging section, a diverging section and a throat section which is connected between the converging section and the diverging section. The scrubbing fluid conduit has a top end connected with the bottom end of the converging section of the venturi tube, and the scrubbing fluid conduit is connected with the scrubbing fluid tank. Thereby, scrubbing fluid can be guided directly into the scrubbing fluid tank without passing through the throat section. As a result, the clogging of dust particles on the converging section of the venturi throat can be minimized and the abnormal increase of the pressure drop of the throat can also be avoided.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This patent application is a division of U.S. patent application Ser. No. 12 / 662,899 filed May 11, 2010 entitled “Wetted Wall Venturi Scrubber with A 2-Stage Venturi Throat”, the entire disclosure of which is incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to air pollution control equipment and more particularly, to a wetted wall venturi scrubber with a 2-stage venturi throat, which avoids clogging in the throat by dust particles.[0004]2. Description of the Related Art[0005]For the advantage of excellent particle removal efficiency, venturi scrubber has been intensively used in the industry. A regular venturi scrubber, as disclosed in 2005 in J. Air & Waste Manage. Assoc. by Tsai et al, generally comprises a converging section, a diverging section and a throat. The throat is formed between the converging section and the diverging section. During application, was...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B01D47/10
CPCB01D47/10B01D47/021B01D47/06
Inventor TSAI, CHUEN-JINN
Owner NAT CHIAO TUNG UNIV