CN1670434A - Catalytic decomposition treatment device for cooking fume - Google Patents
Catalytic decomposition treatment device for cooking fume Download PDFInfo
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- CN1670434A CN1670434A CN 200410099198 CN200410099198A CN1670434A CN 1670434 A CN1670434 A CN 1670434A CN 200410099198 CN200410099198 CN 200410099198 CN 200410099198 A CN200410099198 A CN 200410099198A CN 1670434 A CN1670434 A CN 1670434A
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- 238000003421 catalytic decomposition reaction Methods 0.000 title claims abstract description 8
- 238000010411 cooking Methods 0.000 title abstract description 3
- 239000003517 fume Substances 0.000 title description 32
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 45
- 230000003647 oxidation Effects 0.000 claims abstract description 44
- 230000003197 catalytic effect Effects 0.000 claims abstract description 40
- 239000003054 catalyst Substances 0.000 claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 239000000779 smoke Substances 0.000 claims abstract 6
- 239000000919 ceramic Substances 0.000 claims description 3
- 241000264877 Hippospongia communis Species 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000005485 electric heating Methods 0.000 abstract description 28
- 239000002184 metal Substances 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 30
- 238000000746 purification Methods 0.000 description 13
- 238000010992 reflux Methods 0.000 description 7
- 239000002245 particle Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000004071 soot Substances 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 231100000357 carcinogen Toxicity 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 238000007084 catalytic combustion reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Ventilation (AREA)
Abstract
Description
技术领域technical field
本发明涉及一种脱排油烟机油烟的催化分解处理装置，将回流和催化燃烧两种净化工艺相结合，通过连接管路及调节控制设备形成一个整体的净化处理装置，用于对脱排油烟机排风口的油烟进行净化处理。The invention relates to a catalytic decomposition treatment device for oil fume removal and exhaust, which combines two purification processes of backflow and catalytic combustion, and forms an integral purification treatment device by connecting pipelines and adjusting and controlling equipment, which is used for removing and exhausting oil fume Purify the oil fume from the exhaust outlet of the machine.
背景技术Background technique
现有的油烟废气净化工艺有：The existing oil fume exhaust gas purification processes include:
1、静电除油：将油烟气引入高压电场，油烟气颗粒物在电场力作用下向集尘极运动，并沉积下来从油烟中脱除。特点是设备紧凑，占地面积相对较小，净化效率较高，压降较小。但由于集尘极上油烟冷凝物粘度较高，常造成集尘极清洗困难，使维护工作量增大，造成油烟净化效果下降。同时该方法只对油烟中的油滴颗粒有用，对危害巨大的挥发性有机物起不到处理作用。1. Electrostatic degreasing: The oil fume is introduced into a high-voltage electric field, and the particles of the oil fume move to the dust collecting pole under the action of the electric field force, and are deposited and removed from the oil fume. It is characterized by compact equipment, relatively small footprint, high purification efficiency and small pressure drop. However, due to the high viscosity of the oil fume condensate on the dust collecting pole, it is often difficult to clean the dust collecting pole, which increases the maintenance workload and reduces the oil fume purification effect. At the same time, this method is only useful for the oil droplets in the oil fume, and cannot deal with the extremely harmful volatile organic compounds.
2、洗脱：将油烟气通过特殊的气体分布装置与吸收液接触，将油烟气中的颗粒物从气相中脱除到液相中。优点在于可以同时去除油烟中的SO2、NOx等废气，颗粒物的净化率亦较高，占地面积小运行费用低，但受湿式除尘器性能的限制，对亚微米的颗粒物净化效率较低，洗涤废液尚未能较好解决。2. Elution: The fume gas is contacted with the absorption liquid through a special gas distribution device, and the particulate matter in the fume gas is removed from the gas phase to the liquid phase. The advantage is that it can remove SO 2 , NOx and other exhaust gases in the oil fume at the same time, the purification rate of particulate matter is also high, and the floor space is small and the operation cost is low. Washing waste liquid has not yet been better resolved.
3、活性炭吸附：油烟在净化器中通过被有较大的比表面积活性炭吸附，以达到净化油烟中的有害气体。这一方法的优点为占地面积小，净化效率较高，能有效去除油烟、异味、CO、致癌物等有害气体，但由于油烟的颗粒物粘度较高造成压降较大，而且活性炭容易饱和，造成运行费用上升。3. Activated carbon adsorption: The oil fume is adsorbed by activated carbon with a large specific surface area in the purifier to purify the harmful gases in the oil fume. The advantage of this method is that it occupies a small area, has high purification efficiency, and can effectively remove harmful gases such as oil fume, peculiar smell, CO, and carcinogens. cause operating costs to rise.
4、旋风分离：利用旋转气流产生的离心力使油烟中的颗粒物分离的装置。主要优点是设备简单，压降较小，弊端在于对小粒径的颗粒去除率低，而且由于油烟中颗粒物粘度很大，清洗维护工作量较大。4. Cyclone separation: a device that uses the centrifugal force generated by the rotating airflow to separate the particles in the oil fume. The main advantage is that the equipment is simple and the pressure drop is small. The disadvantage is that the removal rate of small particle size particles is low, and because the particles in the oil fume have a high viscosity, the cleaning and maintenance workload is relatively large.
发明内容Contents of the invention
本发明的目的在于针对现有技术的不足，提供一种脱排油烟机油烟的催化分解处理装置，具有节能低耗、净化效率高、操作方便安全等特点，适合家庭油烟机风量大、油烟浓度低的特点的净化治理。The object of the present invention is to address the deficiencies in the prior art, to provide a catalytic decomposition treatment device for extracting and exhausting range hood oil fume, which has the characteristics of energy saving, low consumption, high purification efficiency, convenient and safe operation, etc. Purification treatment with low characteristics.
为实现这样的目的，本发明设计的脱排油烟机油烟的催化分解处理装置主要由催化氧化反应器和调节控制两部分组成，催化氧化反应器采用电加热室和催化氧化室为一体的竖式结构，由催化氧化管，电加热内管，出气管，回流器，电加热开关及催化剂组成。催化氧化管采用薄壁金属管，以抽屉形式嵌入脱排油烟机排风口内，电加热内管紧贴催化氧化管的内壁，电加热内管内充填以蜂窝陶瓷为载体的氧化催化剂，电加热内管的上部设置电加热开关，回流器位于催化氧化反应器的前端，出气管位于催化反应器的后端。本发明的调节控制部分利用脱排油烟机的控制开关来控制排风机的运行状态，同时控制催化氧化反应器中电加热开关的开启。In order to achieve such a purpose, the catalytic decomposition treatment device for the oil fume of the range hood exhaust machine designed in the present invention is mainly composed of a catalytic oxidation reactor and an adjustment control. The catalytic oxidation reactor adopts a vertical type in which the electric heating chamber and the catalytic oxidation chamber are integrated. The structure is composed of a catalytic oxidation tube, an electric heating inner tube, an air outlet tube, a reflux device, an electric heating switch and a catalyst. The catalytic oxidation tube adopts a thin-walled metal tube, which is embedded in the exhaust port of the range hood in the form of a drawer. The electric heating inner tube is close to the inner wall of the catalytic oxidation tube, and the electric heating inner tube is filled with oxidation catalyst with honeycomb ceramics as the carrier. An electric heating switch is arranged on the upper part of the pipe, the reflux device is located at the front end of the catalytic oxidation reactor, and the gas outlet pipe is located at the rear end of the catalytic reactor. The regulation and control part of the present invention uses the control switch of the range hood to control the running state of the exhaust fan, and at the same time controls the opening of the electric heating switch in the catalytic oxidation reactor.
本发明装置工作时，启动脱排油烟机开关按钮，油烟机排风机转动的同时催化氧化反应器的电加热开关也启动，将催化氧化反应器中的催化剂逐渐加热并将其控制在油烟催化氧化反应的温度(200℃)。废气气流通过回流器自然冷却，使其中部分油液滴冷凝并回流到油烟机的集油器，然后油烟进入催化氧化管，在此油烟废气被催化剂氧化为无害的水和二氧化碳而使空气净化。油烟催化氧化后产生大量的热，这部分热能可降低电加热的能耗。净化后的气体通过出气口排出。整个装置的吸附过程采用负压操作，可避免有机废气在操作间的溢出。When the device of the present invention is working, start the switch button of the range hood, and the electric heating switch of the catalytic oxidation reactor is also activated while the exhaust fan of the range hood rotates. The temperature of the reaction (200°C). The exhaust gas flow is naturally cooled by the reflux device, so that some of the oil droplets condense and return to the oil collector of the range hood, and then the oil fume enters the catalytic oxidation pipe, where the oil fume exhaust gas is oxidized by the catalyst into harmless water and carbon dioxide to purify the air . A large amount of heat is generated after the catalytic oxidation of soot, and this part of heat energy can reduce the energy consumption of electric heating. The purified gas is discharged through the gas outlet. The adsorption process of the whole device adopts negative pressure operation, which can avoid the overflow of organic waste gas in the operation room.
本发明的控制部分可以采用手动操作，也可采用PC机、可编程控制器、电器元件等来实现自动控制。The control part of the present invention can be operated manually, or can be automatically controlled by PC, programmable controller, electrical components and the like.
本发明中使用的催化剂可以根据风量进行选择，中小风量可以用阻力大的催化剂，在大风量情况下主要使用床层阻力小的以蜂窝陶瓷为载体的氧化催化剂。The catalyst used in the present invention can be selected according to the air volume. The catalyst with high resistance can be used for small and medium air volumes. In the case of large air volume, the oxidation catalyst with small bed resistance and honeycomb ceramics as the carrier is mainly used.
本发明结构紧凑，采用抽屉式结构直接嵌入脱排油烟机，不需改变油烟机尺寸。利用脱排油烟机的风机进行排气，利用脱排油烟机的电源加热，还可同时利用烹饪时对气体的加热，高效低温催化处理油烟。适合针对家庭油烟机风量大(2000m3/h)、油烟浓度低(＜2000mg/m3)的特点进行净化治理。本发明使用方便安全，运行低耗节能，处理后的气体安全无害，不会对环境形成二次污染。The invention has a compact structure, adopts a drawer structure and is directly embedded in the range hood, without changing the size of the range hood. Use the fan of the range hood to exhaust, use the power supply of the range hood to heat, and also use the heating of the gas during cooking to efficiently and low-temperature catalytically treat the oil fume. It is suitable for purifying and treating the characteristics of large air volume (2000m 3 /h) and low oil fume concentration (<2000mg/m 3 ) of household range hoods. The invention is convenient and safe to use, low in energy consumption and energy saving in operation, and the treated gas is safe and harmless, and will not cause secondary pollution to the environment.
附图说明Description of drawings
图1为本发明的结构示意图。Fig. 1 is a structural schematic diagram of the present invention.
图1中，1为催化氧化管，2为电加热内管，3为出气管，4为回流器，5、6为电加热开关，7为催化剂。In Fig. 1, 1 is a catalytic oxidation tube, 2 is an electric heating inner tube, 3 is an outlet pipe, 4 is a reflux device, 5 and 6 are electric heating switches, and 7 is a catalyst.
具体实施方式Detailed ways
以下结合附图对本发明的技术方案作进一步描述。The technical solution of the present invention will be further described below in conjunction with the accompanying drawings.
本发明主要由催化氧化反应器和调节控制两部分组成，催化氧化反应器采用电加热室和催化氧化室为一体的竖式结构，如图1所示，由催化氧化管1，电加热内管2，出气管3，回流器4，催化反应器的电加热开关5和6及催化剂7组成。催化氧化管1采用薄壁金属管，以抽屉形式嵌入脱排油烟机排风口内，紧贴催化氧化管1的内壁为电加热内管2，电加热内管2内充填氧化催化剂7，电加热内管2的上部设置电加热开关5和6，回流器4位于催化氧化反应器的前端，出气管3位于催化反应器的后端。The present invention is mainly composed of a catalytic oxidation reactor and an adjustment control. The catalytic oxidation reactor adopts a vertical structure in which an electric heating chamber and a catalytic oxidation chamber are integrated. As shown in Figure 1, the catalytic oxidation tube 1 and the electric heating inner tube 2. Composed of gas outlet pipe 3, reflux device 4, electric heating switches 5 and 6 of the catalytic reactor and catalyst 7. The catalytic oxidation tube 1 adopts a thin-walled metal tube, which is embedded in the exhaust port of the range hood in the form of a drawer. The inner wall of the catalytic oxidation tube 1 is an electric heating inner tube 2, and the electric heating inner tube 2 is filled with an oxidation catalyst 7. The upper part of the inner pipe 2 is provided with electric heating switches 5 and 6, the reflux device 4 is located at the front end of the catalytic oxidation reactor, and the gas outlet pipe 3 is located at the rear end of the catalytic reactor.
本发明的调节控制部分利用脱排油烟机的控制开关来控制排风机运行停止，控制催化氧化反应器中电加热开关5和6的开启。The regulation control part of the present invention uses the control switch of the range hood to control the stop of the exhaust fan, and controls the opening of the electric heating switches 5 and 6 in the catalytic oxidation reactor.
本发明装置的工作流程如下：The work flow of device of the present invention is as follows:
启动脱排油烟机开关按钮，油烟机排风机转动的同时催化氧化反应器的电加热开关也启动，将催化氧化反应器中的催化剂7逐渐加热并将其控制在油烟催化氧化反应的温度(200℃)。废气气流通过回流器4自然冷却，使其中部分油液滴冷凝并回流到油烟机的集油器，然后油烟进入催化氧化管1，在此油烟废气被催化剂7氧化为无害的水和二氧化碳而使空气净化。油烟催化氧化后产生大量的热，这部分热能可降低电加热的能耗。净化后的气体通过出气口3排出。Start the switch button of the range hood, and the electric heating switch of the catalytic oxidation reactor is also started when the range hood exhaust fan rotates, and the catalyst 7 in the catalytic oxidation reactor is gradually heated and controlled at the temperature of the oil fume catalytic oxidation reaction (200 ℃). The exhaust gas flow is naturally cooled by the reflux device 4, so that part of the oil droplets condenses and returns to the oil collector of the range hood, and then the oil fume enters the catalytic oxidation tube 1, where the oil fume exhaust gas is oxidized by the catalyst 7 into harmless water and carbon dioxide. Make the air clean. A large amount of heat is generated after the catalytic oxidation of soot, and this part of heat energy can reduce the energy consumption of electric heating. The purified gas is discharged through the gas outlet 3.
实施例1Example 1
油烟废气总浓度为100mg/L左右。排风量为1800m3/h，安装一套本发明的废气净化处理装置，油烟废气在净化装置内的停留时间控制在3秒以内，治理后油烟废气总浓度降为2mg/L左右。The total concentration of soot exhaust gas is about 100mg/L. The exhaust air volume is 1800m 3 /h, and a set of exhaust gas purification treatment device of the present invention is installed. The residence time of oil fume exhaust gas in the purification device is controlled within 3 seconds, and the total concentration of oil fume exhaust gas is reduced to about 2mg/L after treatment.
实施例2Example 2
油烟废气总浓度为220mg/L左右。排风量为1200m3/h，安装一套废气净化处理装置，油烟废气在净化装置内的停留时间控制在3秒以内，治理后油烟废气总浓度降为5mg/L左右。The total concentration of soot exhaust gas is about 220mg/L. The exhaust air volume is 1200m 3 /h, and a set of exhaust gas purification treatment device is installed. The residence time of oil fume exhaust gas in the purification device is controlled within 3 seconds, and the total concentration of oil fume exhaust gas is reduced to about 5mg/L after treatment.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410099198XA CN100342178C (en) | 2004-12-29 | 2004-12-29 | Oil smoke catalytic decomposition treating apparatus for range hoods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410099198XA CN100342178C (en) | 2004-12-29 | 2004-12-29 | Oil smoke catalytic decomposition treating apparatus for range hoods |
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| Publication Number | Publication Date |
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| CN1670434A true CN1670434A (en) | 2005-09-21 |
| CN100342178C CN100342178C (en) | 2007-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB200410099198XA Expired - Fee Related CN100342178C (en) | 2004-12-29 | 2004-12-29 | Oil smoke catalytic decomposition treating apparatus for range hoods |
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| CN (1) | CN100342178C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107435969A (en) * | 2017-10-03 | 2017-12-05 | 吴联凯 | A kind of commercial kitchen fume purifying dust pelletizing system |
| CN108397782A (en) * | 2018-03-02 | 2018-08-14 | 徐州燃烧控制研究院有限公司 | A kind of volatile organic matter heatable catalytic combustion reactor and its method |
| CN115041017A (en) * | 2022-05-13 | 2022-09-13 | 南京都乐制冷设备有限公司 | Device and method for removing VOCs in closed area |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4954694A (en) * | 1989-01-31 | 1990-09-04 | Matsushita Electric Industrial Co., Ltd. | Cooking oven having function to automatically clean soils attached to inner walls thereof |
| JPH0518529A (en) * | 1991-07-11 | 1993-01-26 | Matsushita Electric Ind Co Ltd | Purification system for exhaust gas |
| CN2369785Y (en) * | 1999-05-25 | 2000-03-22 | 中国科学院成都有机化学研究所 | Catalytic purifier for kitchen fume |
| CN2445222Y (en) * | 2000-09-22 | 2001-08-29 | 曲振征 | Cooker hood |
| CN2506335Y (en) * | 2001-10-26 | 2002-08-21 | 深圳市先科环保有限公司 | Catalysing combustion oil fume purifier |
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2004
- 2004-12-29 CN CNB200410099198XA patent/CN100342178C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107435969A (en) * | 2017-10-03 | 2017-12-05 | 吴联凯 | A kind of commercial kitchen fume purifying dust pelletizing system |
| CN107435969B (en) * | 2017-10-03 | 2019-11-29 | 杭州福达医用设备有限公司 | A kind of commercial kitchen fume purifying dust pelletizing system |
| CN108397782A (en) * | 2018-03-02 | 2018-08-14 | 徐州燃烧控制研究院有限公司 | A kind of volatile organic matter heatable catalytic combustion reactor and its method |
| CN115041017A (en) * | 2022-05-13 | 2022-09-13 | 南京都乐制冷设备有限公司 | Device and method for removing VOCs in closed area |
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| Publication number | Publication date |
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| CN100342178C (en) | 2007-10-10 |
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