Method and device for vaporizing and mixing ammonia water for denitration

A technology of ammonia water and denitrification, which is applied in the direction of chemical instruments and methods, mixers, separation methods, etc., can solve the problems of difficult equipment layout, poor mixing effect, large floor area, etc., to achieve enhanced turbulence, improved mixing effect, The effect of increasing the mixing time

Pending Publication Date: 2022-05-13
CHONGQING CISDI THERMAL & ENVIRONMENTAL ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The existing process is equipped with two sets of equipment, ammonia water vaporizer and ammonia / air mixer, which have problems such as large footprint, difficult equipment layout, and poor mixing effect

Method used

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  • Method and device for vaporizing and mixing ammonia water for denitration
  • Method and device for vaporizing and mixing ammonia water for denitration
  • Method and device for vaporizing and mixing ammonia water for denitration

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Embodiment Construction

[0029] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic concept of the present invention, and the following embodiments and the features in the embodiments can be combined with each other in the case of no conflict.

[0030] Wherein, the accompanying drawings are for illustrative purposes only, and represent only schematic diagrams, rather than physical drawings, and should...

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Abstract

The invention belongs to the technical field of ammonia water vaporizing and mixing, relates to an ammonia water vaporizing and mixing method and device for denitration, and adopts an ammonia water vaporizing and mixing integrated device for denitration. Ammonia water is vaporized into ammonia gas by utilizing heat of high-temperature flue gas in the vaporization cavity; high-temperature flue gas and ammonia gas are premixed in the accelerating cavity, secondary high-temperature flue gas is input through the secondary high-temperature flue gas inlet, the secondary high-temperature flue gas drives airflow, the airflow speed is increased in the accelerating cavity through the Venturi effect, and turbulent flow between the airflow is enhanced through the sealing plate; and the accelerated mixed gas is decelerated by utilizing a partition plate in the mixing cavity, so that the gas is uniformly mixed in the gas mixing channel. Ammonia water vaporization, acceleration and mixing are all completed in the tower body, additional heating and acceleration equipment is not needed, integrated arrangement of the equipment is achieved, and the problems that an existing ammonia water vaporizer and an existing air ammonia mixer are large in occupied space and high in arrangement difficulty are solved.

Description

technical field [0001] The invention belongs to the technical field of ammonia water vaporization and mixing, and relates to an ammonia water vaporization and mixing method and device for denitrification. Background technique [0002] In the field of flue gas denitrification treatment, the SCR denitrification reaction needs to use a reducing agent to reduce NOx into nitrogen and water. The conventional reducing agent mainly includes ammonia water. Before the ammonia water enters the denitration reaction flue, the ammonia water needs to be atomized into ammonia gas and diluted to less than 5%. The diluted ammonia gas is sprayed into the denitration inlet flue and mixed with the flue gas for SCR denitration reaction. [0003] The existing process is equipped with two sets of equipment, the ammonia water vaporizer and the ammonia / air mixer, which have problems such as large footprint, difficult equipment layout, and poor mixing effect. Contents of the invention [0004] In v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F33/82B01F23/70B01D53/86B01D53/90B01D53/56
CPCB01D53/8631B01D53/90B01D2258/0283B01D2257/404
Inventor 原志文王拓周涛梁广
Owner CHONGQING CISDI THERMAL & ENVIRONMENTAL ENG CO LTD
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