WO2022016565A1 - 一种微波无极放电紫外线废气处理装置 - Google Patents

一种微波无极放电紫外线废气处理装置 Download PDF

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WO2022016565A1
WO2022016565A1 PCT/CN2020/104994 CN2020104994W WO2022016565A1 WO 2022016565 A1 WO2022016565 A1 WO 2022016565A1 CN 2020104994 W CN2020104994 W CN 2020104994W WO 2022016565 A1 WO2022016565 A1 WO 2022016565A1
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microwave
waste gas
treatment device
gas treatment
casing
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PCT/CN2020/104994
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English (en)
French (fr)
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袁亮
袁振
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江苏万贤环境工程有限公司
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8678—Removing components of undefined structure
    • B01D53/8687—Organic components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/007—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by irradiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/88—Handling or mounting catalysts
    • B01D53/885—Devices in general for catalytic purification of waste gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/102—Carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20707—Titanium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/80—Type of catalytic reaction
    • B01D2255/802—Photocatalytic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
    • B01D2259/804—UV light
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
    • B01D2259/806—Microwaves

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  • the invention relates to the technical field of organic waste gas treatment equipment, in particular to a microwave electrodeless discharge ultraviolet waste gas treatment device.
  • ultraviolet catalytic oxidation technology is mainly used to decompose organic waste gas
  • microwaves, photocatalyst panels and ultraviolet rays are used for decomposition, which can greatly improve the decomposition rate and effect, and decompose organic waste gas into harmless ones.
  • water and carbon dioxide there is always a small amount of residual organic waste gas that is directly discharged without being decomposed.
  • the treatment of the existing technical solution is slightly insufficient.
  • the present invention discloses a microwave electrodeless discharge ultraviolet waste gas treatment device that can effectively absorb residual organic waste gas molecules and repeatedly decompose.
  • a microwave electrodeless discharge ultraviolet waste gas treatment device comprising a base, a shell, a carbon box, a microwave generator, and an ultraviolet tube and a photocatalyst plate alternately installed in the shell; the shell is fixed on the base, and the upper part and the lower part are respectively An air inlet and an air outlet are arranged, and a fan is arranged at the air outlet of the casing to promote the flow of organic waste gas.
  • a catalyst cylinder is installed at the position of the air inlet and the air outlet.
  • the catalyst cylinder is provided with air holes, and the surface is coated with nano Tio 2 , which is conducive to the flow of organic waste gas and fully catalyzed; the carbon box is fixed at the end provided with the air outlet. .
  • a vertical mounting plate and a horizontal bracket are arranged in the casing.
  • the horizontal bracket is made of ceramic or plastic and is installed at equal intervals in the casing to support the photocatalyst plate and the carbon box.
  • a group of electrodeless and low-pressure mercury lamps, the electrodeless and low-pressure mercury lamps are fixedly installed on the inner side of the vertical installation plate, the microwave generator is installed on the outer side of the vertical installation plate, below each group of electrodeless and low-pressure mercury lamps, and the carbon box is fixed on the last group. Below the electrodeless low pressure mercury lamp.
  • the catalyst cylinder is preferably made of aluminum material, and while ensuring the circulation of organic waste gas, it forms a closed microwave field with the shell.
  • the lamp tube of the electrodeless low-pressure mercury lamp adopts a quartz tube with a diameter of 19mm, which reduces the load on the tube wall and improves the life of the lamp tube, and uses amalgam inside to overcome the temperature rise and light decay, so as to ensure that the lamp tube is always in the highest UVC emission state.
  • the stainless steel lamp cap protects the amalgam and prevents the amalgam from volatilizing in the heated state.
  • the photocatalyst plate is a honeycomb ceramic photocatalyst plate, and the surface is coated with nano Tio 2 .
  • the microwave electrodeless discharge ultraviolet waste gas treatment device when in use, starts the microwave generator and the fan, the organic waste gas enters from the air inlet, is broken by the microwave ultra-high frequency electromagnetic field and cuts molecular bonds to form smaller molecular bonds. Molecules are further oxidized and decomposed into water and carbon dioxide through ultraviolet rays and photocatalyst panels, and a small amount of residual organic waste gas is absorbed by the carbon box.
  • the fan exits the housing.
  • the invention uses microwaves, ultraviolet rays and photocatalyst plates to catalyze the organic waste gas efficiently; the carbon box absorbs the residual organic waste gas, further decomposes, and treats the organic waste gas more thoroughly with less residual amount; the catalyst cylinder increases the amount of organic waste gas. Contact area to improve catalytic effect.
  • FIG. 1 is a perspective view of the present invention
  • Fig. 2 is the front view of the present invention
  • Fig. 3 is the rear view of the present invention.
  • Figure 4 is a side sectional view of the casing of the present invention.
  • Fig. 5 is the perspective view of the catalyst cylinder of the present invention.
  • Fig. 6 is the front view of the photocatalyst plate of the present invention.
  • a microwave electrodeless discharge ultraviolet waste gas treatment device comprises a base 1, a shell 2, a carbon box 3, an electrodeless low pressure mercury lamp 4, a photocatalyst plate 5, a microwave generator 6 and the fan 7; the casing 2 and the fan 7 are fixed above the base 1, the electrodeless low-pressure mercury lamp 4 and the photocatalyst plate 5 are installed in the casing 2 at intervals, and the microwave generator 6 is used to generate a high-frequency microwave field. It is 2450MHz, the carbon box 3 is fixed in the casing 2, and is located below the last group of electrodeless low-pressure mercury lamps 4.
  • An air inlet 201 and an air outlet 202 are arranged on the upper and lower parts of the housing 1 respectively, and a catalyst cylinder 203 is arranged at the air inlet 201 and the air outlet 202.
  • the catalyst cylinder 203 is made of aluminum and is composed of the housing 2 The microwave cavity is closed; the surface is coated with nano Tio 2 , and air holes are arranged around it, which is conducive to fully contacting and catalyzing with organic waste gas and improving the catalytic effect; the fan 7 is connected to the air outlet 202 .
  • the housing 1 is also provided with a vertical mounting plate 204 for installing the electrodeless low-pressure mercury lamp 4 and a horizontal bracket 205 for supporting the photocatalyst plate 5.
  • the horizontal bracket 205 is made of ceramic or plastic material; the microwave generator 6 is fixed in the vertical installation.
  • the outer side of the plate 204 is located below each group of electrodeless and low-pressure mercury lamps 4; the electrodeless and low-pressure mercury lamps 4 are made of quartz tube material, with a diameter of 19mm, and a stainless steel lamp cap is used to protect the amalgam inside, to prevent the amalgam from being reduced due to heat and volatilization. launch status.
  • the microwave generator 6 and the blower 7 are activated, and the organic waste gas enters the interior of the casing 2 from the air inlet 201 under the action of the blower 7, and smaller molecules are formed in the rupture and cutting molecular bonds of the microwave ultra-high frequency electromagnetic field.
  • the electrodeless low-pressure mercury lamp 4 breaks bonds and decomposes small molecules, the nano Tio 2 on the photocatalyst plate 5 is irradiated to generate a large number of oxyhydroxide-HO and electron-hole pairs, which play a stronger catalytic oxidation effect.
  • the organic waste gas is decomposed into harmless water and carbon dioxide, a small amount of residual organic waste gas is absorbed by the carbon box 3, and the electrodeless low-pressure mercury lamp 4 above the carbon box 3 decomposes the residual organic waste gas again, and finally discharges the shell.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Toxicology (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
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Abstract

本发明公开了一种微波无极放电紫外线废气处理装置，属于废气处理技术领域，包括微波发生器、基座、风机、壳体、无极低压汞灯、光触媒板以及炭箱；所述壳体和风机固定在基座上方，壳体设置进气口和出气口，并在进气口、出气口位置设置催化剂圆筒，光触媒板和无极低压汞灯在壳体内间隔布置；炭箱安装在靠近出气口一端，用于吸附少量的未分解的有机废气，重复分解，风机位于出气口位置，引导气体流出壳体；本发明采用微波、紫外线和光触媒三者配合对有机废气分子有效分解，通过炭箱吸附残余有机废气分子，分解更加彻底。

Description

一种微波无极放电紫外线废气处理装置 技术领域
本发明涉及有机废气处理设备技术领域，具体涉及一种微波无极放电紫外线废气处理装置。
背景技术
目前，对于有机废气处理，主要利用紫外线催化氧化技术，对有机废气进行分解处理，还有采用微波、光触媒板配合紫外线进行分解，能够极大提升分解速率和效果，将有机废气分解为无害的水和二氧化碳；但是总有少量残余的有机废气未经分解，被直接排出，对于这类残余的有机废气，现有技术方案的处理略显不足。
发明内容
技术目的：针对现有技术的不足，本发明公开了一种可以有效吸收残余有机废气分子，并重复分解的微波无极放电紫外线废气处理装置。
技术方案：为实现上述技术目的，本发明采用了如下技术方案：
一种微波无极放电紫外线废气处理装置，包括基座、壳体、炭箱、微波发生器和交替安装在壳体内的紫外线管、光触媒板；所述壳体固定在基座上，上部和下部分别设置有进气口、出气口，并且在壳体出气口位置设置风机，用于促进有机废气流动。
所述进气口、出气口位置安装有催化剂圆筒，所述催化剂圆筒设置有气孔，表面涂有纳米Tio 2，利于有机废气流动，充分进行催化；炭箱固定在设置有出气口的一端。
优选地，所述壳体内设置竖向安装板和水平托架，水平托架采用陶瓷或塑料材质，在壳体内等间隔安装，用于支撑光触媒板和炭箱，相邻光触媒板之间设置一组无极低压汞灯，无极低压汞灯固定安装在竖向安装板内侧，微波发生器安装在竖向安装板外侧面，位于每组无极低压汞灯的下方，所述炭箱固定在最后一组无极低压汞灯的下方。
优选地，所述催化剂圆筒优选铝制材料，保证有机废气流通的同时，与壳体组成封闭的微波场。
优选地，所述无极低压汞灯的灯管采用石英管，直径19mm，减轻了管壁的负载提高灯管的寿命，内部使用汞齐克服温升光衰，确保灯管始终处于最高UVC发射状态，采用不锈钢灯头保护汞齐，防止汞齐在加热状态的挥发。
优选地，所述光触媒板采用蜂窝状陶瓷光触媒板，表面涂有纳米Tio 2。
本发明所提供的一种微波无极放电紫外线废气处理装置，在使用时，启动微波发生 器和风机，有机废气从进气口进入，受到微波超高频电磁场的破裂和切割分子键形成较小的分子，经由紫外线和光触媒板进一步氧化分解成水和二氧化碳，残余的少量有机废气被炭箱吸收，炭箱上方的无极低压汞灯可以对残余的有机废气进一步分解，最后无害气体通过出气口的风机排出壳体。
有益效果：本发明使用微波、紫外线和光触媒板配合，可以高效催化有机废气；炭箱吸收残余的有机废气，进一步分解，对有机废气处理更加彻底，残余量少；催化剂圆筒增加与有机废气的接触面积，提高催化效果。
附图说明
为了更清楚地说明本发明施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单介绍。
图1为本发明立体图；
图2为本发明主视图；
图3为本发明后视图；
图4为本发明壳体侧剖视图；
图5为本发明催化剂圆筒立体图；
图6为本发明光触媒板主视图；
其中，1-基座、2-壳体、3-炭箱、4-无极低压汞灯、5-光触媒板、6-微波发生器、7-风机；
201-进气口、202-出气口、203-催化剂圆筒、204-竖向安装板、205-水平托架。
具体实施方式
下面通过一较佳实施例的方式并结合附图来更清楚完整地说明本发明，但并不因此将本发明限制在所述的实施例范围之中。
如图1、图2所示为本发明所提供的一种微波无极放电紫外线废气处理装置，包括基座1、壳体2、炭箱3、无极低压汞灯4、光触媒板5、微波发生器6和风机7；所述壳体2、风机7固定在基座1上方，无极低压汞灯4、光触媒板5间隔安装在壳体2内，微波发生器6用于产生高频率微波场，频率为2450MHz，炭箱3固定在壳体2内，位于最后一组无极低压汞灯4的下方。
壳体1上部和下部分别设置进气口201和出气口202，在进气口201、出气口202均设置有催化剂圆筒203，所述催化剂圆筒203采用铝制材料，与壳体2组成封闭微波 腔体；表面涂有纳米Tio 2，四周设置气孔，利于与有机废气充分接触催化，提升催化效果；风机7与出气口202连接。
壳体1内还设置有用于安装无极低压汞灯4的竖向安装板204和支撑光触媒板5的水平托架205，水平托架205采用陶瓷或者塑料材质；微波发生器6固定在竖向安装板204外侧面，位于每组无极低压汞灯4的下方；无极低压汞灯4灯管采用石英管材质，直径19mm，使用不锈钢灯头保护内部的汞齐，防止汞齐因受热挥发而减少，影响发射状态。
本发明使用时，启动微波发生器6和风机7，有机废气在风机7作用下，自进气口201进入壳体2内部，在微波超高频电磁场的破裂和切割分子键形成较小的分子，无极低压汞灯4对小分子进行断键分解的同时，照射光触媒板5上的纳米Tio 2产生大量的羟基氧化基-HO和电子空穴对，起到更强的催化氧化作用，最终将有机废气分解为无害的水和二氧化碳，少量残余的有机废气被炭箱3吸收，炭箱3上方的无极低压汞灯4对残余有机废气再一次分解，最后排出壳体。
以上所述仅是本发明的优选实施方式，应当指出：对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (8)

  1. 一种微波无极放电紫外线废气处理装置，其特征在于：包括基座(1)、壳体(2)、用于吸收残余有机废气的炭箱(3)、无极低压汞灯(4)、光触媒板(5)和微波发生器(6)；所述壳体(2)固定在基座(1)上方，壳体(2)上部和下部分别设置进气口(201)和出气口(202)，炭箱(3)安装在壳体(2)内部，固定在靠近出气口(202)的一端，无极低压汞灯(4)、光触媒板(5)安装在壳体(2)内部。
  2. 根据权利要求1所述的一种微波无极放电紫外线废气处理装置，其特征在于：所述进气口(201)、出气口(202)均设置催化剂圆筒(203)，所述催化剂圆筒(203)设有用于气体流通的气孔；所述基座(1)上还设置有风机(7)，风机(7)与出气口(202)连接。
  3. 根据权利要求1所述的一种微波无极放电紫外线废气处理装置，其特征在于：所述壳体(2)内设置竖向安装板(204)和水平托架(205)，所述水平托架(205)与壳体(2)和竖向安装板(204)固定连接，在壳体(2)内等间隔分布，光触媒板(5)位于水平托架(205)上方，相邻光触媒板(5)之间设置无极低压汞灯(4)，固定在竖向安装板(204)位于壳体一侧，微波发生器(6)固定在竖向安装板(204)的外侧面，位于每组无极低压汞灯(4)的下方，炭箱(3)上方安装一组用于分解残余有机废气的无极低压汞灯(4)。
  4. 根据权利要求3所述的一种微波无极放电紫外线废气处理装置，其特征在于：所述水平托架(205)与竖向安装板(204)采用陶瓷或者塑料材质。
  5. 根据权利要求1所述的一种微波无极放电紫外线废气处理装置，其特征在于：所述微波发生器(6)微波频率为2450MHz。
  6. 根据权利要求1所述的一种微波无极放电紫外线废气处理装置，其特征在于：所述无极低压汞灯(4)的灯管采用石英管，管径为19mm，灯头采用不锈钢材质。
  7. 据权利要求6所述的一种微波无极放电紫外线废气处理装置，其特征在于：所述无极低压汞灯(4)使用汞齐。
  8. 根据权利要求1所述的一种微波无极放电紫外线废气处理装置，其特征在于：所述光触媒板(5)采用蜂窝状陶瓷光触媒板。
PCT/CN2020/104994 2020-07-23 2020-07-28 一种微波无极放电紫外线废气处理装置 WO2022016565A1 (zh)

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