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Adjusting type venturi tube double-layer structure atomizing nozzle

A Venturi tube and double-layer structure technology, applied in chemical instruments and methods, dispersed particle separation, separation methods, etc., can solve problems such as poor atomization effect, high energy consumption, easy blockage, etc., and reduce daily maintenance costs , expand the atomization area, and improve the effect of using stability

Active Publication Date: 2012-02-22
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The atomization effect of this type of nozzle is not good, the energy consumption is high, and it is easy to block

Method used

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  • Adjusting type venturi tube double-layer structure atomizing nozzle
  • Adjusting type venturi tube double-layer structure atomizing nozzle

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Embodiment Construction

[0028] The specific embodiments of the present invention will be described in further detail below, but the embodiments of the present invention are not limited thereto.

[0029] Such as figure 1 shown. The adjustable Venturi tube double-layer structure atomizing nozzle of the present invention includes a slurry nozzle 1 with an inner tapered end and a gas nozzle 2 with a Venturi tube at the end. The gas nozzle 2 is installed inside the slurry nozzle 1. There is a gap between the outer wall of the gas nozzle 2 and the inner wall of the slurry nozzle 1 (the size of the gap is determined by the diameter of the slurry nozzle 1 and the gas nozzle 2), and the gap constitutes the slurry cavity 3; the outer wall of the slurry nozzle 1 is provided with The slurry enters tube 4. The diameter of the outlet of the gas nozzle 2 should be smaller than the diameter of the outlet of the slurry nozzle 1; the tail end 5-1 of the slurry nozzle 1 and the tail 5 of the gas nozzle 2 are slidingl...

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Abstract

The invention discloses an adjusting type venturi tube double-layer structure atomizing nozzle, which comprises an inner cone-shaped serosity nozzle and a venturi tube gas nozzle. A serosity inlet pipe is arranged on the outer wall of the serosity nozzle, and the surface of the inner circumference of the serosity nozzle is a thread surface. The venturi tube gas nozzle and the serosity nozzle are axially adjustable. Pressed pressure gas enters the gas nozzle with an inner cone-shaped end, is compressed and sprayed out from the gas nozzle, and mixes with serosity in a cone-shaped spraying cavity of the serosity nozzle to form 'liquid wrapped gas'. The 'liquid wrapped gas' cracks under effects of high speed and differential pressure, liquid drops are separated and cracked and finally sprays out from the serosity nozzle, so that the serosity is efficiently atomized and best flue gas desulfurization effects are achieved. A slope tangential of a serosity inlet pipe is penetrated with the gas nozzle, the installation angle is consistent with the spiral angle of the thread structure, so that the serosity is further promoted to form natural spiral rotational flow when entering the serositycavity, and the formation of the 'liquid wrapped gas' are promoted.

Description

technical field [0001] The invention is an atomizing nozzle applied to a spraying system for flue gas wet desulfurization, and specifically refers to an adjustable Venturi tube double-layer structure atomizing nozzle. Background technique [0002] With the rapid development of thermal power plants, sulfur dioxide emissions are also increasing. The emission of sulfur dioxide is one of the main causes of air pollution and acid rain. How to implement desulfurization projects in coal-fired power plants, improve desulfurization process, and improve desulfurization efficiency are effective means to effectively curb sulfur dioxide emissions. Practice has shown that wet limestone-gypsum wet flue gas desulfurization technology is an efficient desulfurization technology and has been adopted by many large coal-fired power plants. [0003] The main advantages of the limestone / gypsum method are: a wide range of applicable coal types, high desulfurization efficiency (when Ca / S=1 in some...

Claims

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Application Information

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IPC IPC(8): B01D53/78B01D53/50
Inventor 刘定平张竞争李小伟
Owner SOUTH CHINA UNIV OF TECH
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