WO2017133025A1 - 废气处理系统 - Google Patents

废气处理系统 Download PDF

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Publication number
WO2017133025A1
WO2017133025A1 PCT/CN2016/073999 CN2016073999W WO2017133025A1 WO 2017133025 A1 WO2017133025 A1 WO 2017133025A1 CN 2016073999 W CN2016073999 W CN 2016073999W WO 2017133025 A1 WO2017133025 A1 WO 2017133025A1
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exhaust gas
desorption
catalytic combustion
fan
adsorption unit
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PCT/CN2016/073999
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English (en)
French (fr)
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孟杰
李林荣
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四维尔丸井(广州)汽车零部件有限公司
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Publication of WO2017133025A1 publication Critical patent/WO2017133025A1/zh

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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
    • B01D53/02—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
    • B01D53/26—Drying gases or vapours
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
    • F23G7/07—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases in which combustion takes place in the presence of catalytic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
    • B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
    • B01D2259/4009—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating using hot gas

Definitions

  • the present invention relates to the field of exhaust gas treatment, and more particularly to an exhaust gas treatment system.
  • the current treatment methods mainly include liquid absorption, direct combustion, catalytic combustion and activated carbon adsorption.
  • the purification efficiency of the above four methods is not high, and the energy consumption is high, and the degree of automation is low.
  • An exhaust gas treatment system comprising an exhaust gas pretreatment device, an adsorption system, a desorption device, and a catalytic combustion device; the exhaust gas pretreatment device is configured to pretreat the exhaust gas from the exhaust gas source;
  • the adsorption system has an adsorption unit for performing adsorption treatment on a gas treated by the exhaust gas pretreatment apparatus;
  • the desorption device has a desorption fan and a desorption valve, the desorption fan is connected to the adsorption unit, and the desorption valve is disposed between the adsorption unit and the desorption fan for opening Or shutting down the adsorption unit; the desorption fan is configured to introduce hot air into the adsorption unit to desorb and desorb the organic waste gas;
  • the catalytic combustion device has a catalytic combustion bed, the catalytic combustion bed being in communication with the adsorption unit for inhaling the adsorption unit to desorb the desorbed organic exhaust gas, and decomposing the organic exhaust gas into CO 2 and H 2 O.
  • the catalytic combustion apparatus further has a tube heat exchanger connected between the catalytic combustion bed and the desorption fan, and the catalytic combustion bed is generated The gas enters the desorption fan through the tube heat exchanger as a source of hot air.
  • the number of the adsorption unit and the desorption valve are multiple, A plurality of the adsorption units are connected in parallel to the desorption fan, and the desorption valve has a one-to-one correspondence with the adsorption unit.
  • a first flame arrestor is further included, the first flame arrester being disposed between the desorption fan and the catalytic combustion device.
  • an exhaust chimney coupled to the catalytic combustion bed for discharging CO 2 and H 2 O generated by combustion decomposition of the catalytic combustion bed.
  • a second flame arrester is further disposed between the exhaust chimney and the catalytic combustion bed.
  • a supplemental cooling fan disposed between the catalytic combustion bed and the flame arrester for decomposing CO 2 and combustion through the catalytic combustion bed H 2 O is subjected to a cooling treatment.
  • the exhaust gas treatment system is provided with an exhaust gas pretreatment device, an adsorption system, a desorption device, and a catalytic combustion device.
  • the water-washed mixed exhaust gas is lacquered and dehydrated by an exhaust gas pretreatment device.
  • the gas treated by the exhaust gas pretreatment device is adsorbed by the adsorption unit of the adsorption system.
  • Hot air is introduced into the adsorption unit through the desorption fan of the desorption device to cause the adsorption unit to desorb the organic exhaust gas.
  • catalytic combustion bed catalytic combustion apparatus the suction unit sucks the desorbed organic waste, and the decomposition of organic waste gas combustion to CO 2 and H 2 O.
  • the exhaust gas treatment system has the advantages of stable and reliable operation, low operating cost, energy saving, high efficiency purification rate and high automation level, and at the same time, the treated exhaust gas meets the national requirements.
  • the exhaust gas treatment system of the invention can be applied to the field of high air volume and low concentration exhaust gas treatment of the automatic coating line.
  • FIG. 1 is a schematic view of an exhaust gas treatment system according to an embodiment of the present invention.
  • exhaust gas treatment system 100, exhaust gas pretreatment device; 200, adsorption system; 300, desorption wind 400; catalytic combustion device; 500, exhaust chimney; 600, supplementary cooling fan; 700, exhaust fan; 800, control device; 910, first flame arrester; 920, second flame arrester.
  • the exhaust gas treatment system 10 includes an exhaust gas pretreatment device 100, an adsorption system 200, a desorption device, a catalytic combustion device 400, an exhaust chimney 500, a supplemental cooling fan 600, an exhaust fan 700, and a control device.
  • the control device 800 has a PLC computer, which can be used for human-computer interaction, and is convenient for setting various parameters.
  • the exhaust gas pretreatment apparatus 100 is connected to an exhaust gas source.
  • the exhaust gas pretreatment apparatus 100 is for removing paint from the water-washed mixed exhaust gas and dehydrating it.
  • the control device 800 is electrically connected to the exhaust gas pretreatment device 100.
  • the adsorption system 200 has an adsorption unit for adsorbing and treating the gas treated by the exhaust gas pretreatment apparatus 100.
  • the number of adsorption units and desorption valves is plural.
  • a plurality of adsorption units are connected in parallel to the desorption fan 300.
  • the desorption valve has a one-to-one correspondence with the adsorption unit.
  • the control device 800 is electrically connected to the adsorption unit.
  • the control device 800 is electrically connected to the desorption valve for controlling the desorption valve to open or close.
  • the desorption device has a desorption fan 300 and a desorption valve.
  • the desorption fan 300 is connected to the adsorption unit, and the desorption valve is disposed between the adsorption unit and the desorption fan 300 for opening or closing the adsorption unit.
  • the desorption fan 300 is used to introduce hot air into the adsorption unit to desorb the adsorption unit to desorb the organic exhaust gas.
  • the desorption fan 300 can be turned on when the adsorption unit is saturated or when the adsorption unit is partially saturated to achieve desorption and desorption of the adsorption unit.
  • the catalytic combustion apparatus 400 has a catalytic combustion bed and a tube heat exchanger.
  • the catalytic combustion bed is connected to the adsorption unit for desorbing and desorbing the organic exhaust gas for the suction adsorption unit, and decomposing the organic exhaust gas into CO 2 and H 2 O.
  • the control device 800 is electrically connected to the catalytic combustion bed and the tube heat exchanger.
  • the tube heat exchanger is in communication between the catalytic combustion bed and the desorption fan 300.
  • the high temperature gas generated by the combustion of the catalytic combustion bed enters the desorption fan 300 through the tube heat exchanger as a hot air source.
  • the two flame arresters are also included.
  • the two flame arresters are a first flame arrester 910 and a second flame arrester 920, respectively.
  • the first flame arrester 910 is disposed between the desorption fan 300 and the catalytic combustion device 400.
  • the exhaust chimney 500 is connected to a catalytic combustion bed for discharging CO 2 and H 2 O generated by combustion decomposition.
  • a second flame arrester 920 is also disposed between the exhaust stack 500 and the catalytic combustion bed.
  • the adsorption unit is further connected to the exhaust chimney 500 for discharging a part of the flue gas in the adsorption unit.
  • the supplemental cooling fan 600 is disposed between the catalytic combustion bed and the flame arrester for cooling the combustion into a CO 2 and H 2 O by catalytic combustion bed combustion.
  • the control device 800 is electrically connected to the supplemental cooling fan 600.
  • the exhaust fan 700 is disposed between the exhaust gas pretreatment apparatus 100 between the adsorption units for drawing the gas processed by the exhaust gas pretreatment apparatus 100 into the adsorption unit.
  • the control device 800 is electrically connected to the exhaust fan 700.
  • the exhaust gas treatment system 10 is provided with an exhaust gas pretreatment apparatus 100, an adsorption system 200, a desorption apparatus, and a catalytic combustion apparatus 400.
  • the water-washed mixed exhaust gas is lacquered and dehydrated by the exhaust gas pretreatment apparatus 100.
  • the gas treated by the exhaust gas pretreatment apparatus 100 is adsorbed by the adsorption unit of the adsorption system 200.
  • the hot air is introduced into the adsorption unit through the desorption fan 300 of the desorption device to cause the adsorption unit to desorb the organic exhaust gas.
  • the adsorption unit is sucked by the catalytic combustion bed of the catalytic combustion device 400 to desorb the organic exhaust gas, and the organic exhaust gas is burned and decomposed into CO 2 and H 2 O.
  • the exhaust gas treatment system 10 has the advantages of stable and reliable operation, low operating cost, energy saving, high efficiency purification rate, high automation level, and the treated exhaust gas meets the national requirements.
  • the exhaust gas treatment system 10 according to the present invention can be applied to the field of high air volume and low concentration exhaust gas treatment of a fully automatic coating line.

Abstract

一种废气处理系统(10)，其包括废气预处理装置(100)、吸附系统(200)、脱附装置以及催化燃烧装置(400)。废气预处理装置(100)用于对来自废气源的废气预处理，吸附系统(200)具有吸附单元以用于吸附处理经过废气预处理装置(100)处理后的气体；脱附装置具有脱附风机(300)以及脱附阀门，脱附风机(300)连接于吸附单元，脱附阀门设在吸附单元与脱附风机(300)之间，以用于打开或者关闭吸附单元，脱附风机(300)用于引入热风至吸附单元内以使得吸附单元解吸出有机废气；催化燃烧装置(400)具有催化燃烧床，催化燃烧床连通于吸附单元，以用于吸入吸附单元解吸出有机废气，并将有机废气燃烧分解成CO 2和H 2O。该废气处理系统(10)操作简单、净化效率高、节能降耗以及自动化程度高。

Description

废气处理系统 技术领域
本发明涉及废气处理领域，特别是涉及一种废气处理系统。
背景技术
在废气处理领域，目前处理的方法主要有液体吸收、直接燃烧、催化燃烧和活性炭吸附等四种不同方式。上述四种方法的净化效率均不高，并且耗能较多，自动化程度低。
发明内容
基于此，有必要提供一种操作简单、净化效率高、节能降耗以及自动化程度高的废气处理系统。
一种废气处理系统，包括废气预处理装置、吸附系统、脱附装置以及催化燃烧装置；所述废气预处理装置用于对来自废气源的废气预处理；
所述吸附系统具有吸附单元以用于对经过所述废气预处理装置处理后的气体进行吸附处理；
所述脱附装置具有脱附风机以及脱附阀门，所述脱附风机连接于所述吸附单元，所述脱附阀门设在所述吸附单元与所述脱附风机之间，以用于打开或者关闭所述吸附单元；所述脱附风机用于引入热风至所述吸附单元内以使得所述吸附单元解吸脱附出有机废气；
所述催化燃烧装置具有催化燃烧床，所述催化燃烧床连通于所述吸附单元，以用于吸入所述吸附单元解吸脱附出的所述有机废气，并将所述有机废气燃烧分解成CO2和H2O。
在其中一个实施例中，所述催化燃烧装置还具有列管热交换器，所述列管热交换器连通在所述催化燃烧床以及所述脱附风机之间，所述催化燃烧床燃烧生成的气体通过列管热交换器进入脱附风机作为热风源。
在其中一个实施例中，所述吸附单元以及所述脱附阀门的数量均为多个， 多个所述吸附单元并联连接于所述脱附风机，所述脱附阀门与所述吸附单元一一对应。
在其中一个实施例中，还包括第一阻火器，所述第一阻火器设置在所述脱附风机以及所述催化燃烧装置之间。
在其中一个实施例中，还包括排风烟筒，所述排风烟筒连接于所述催化燃烧床，以用于将经过所述催化燃烧床燃烧分解生成的CO2和H2O排出。
在其中一个实施例中，所述排风烟筒与所述催化燃烧床之间还设有第二阻火器。
在其中一个实施例中，还包括补冷风机，所述补冷风机设置在所述催化燃烧床与所述阻火器之间，以用于对经过所述催化燃烧床燃烧分解成的CO2和H2O进行冷却处理。
在其中一个实施例中，还包括抽风机，所述抽风机设置在所述废气预处理装置于所述吸附单元之间，以用于将经过废气预处理装置处理后的气体抽进所述吸附单元内。
本发明涉及的废气处理系统，设置了废气预处理装置、吸附系统、脱附装置以及催化燃烧装置。通过废气预处理装置将经过水洗涤后的混合废气除漆并脱水。通过吸附系统的吸附单元来吸附处理经过废气预处理装置处理后的气体。通过脱附装置的所述脱附风机来引入热风至所述吸附单元内以使得所述吸附单元解吸出有机废气。通过催化燃烧装置的催化燃烧床来吸入所述吸附单元解吸出所述有机废气，并将有机废气燃烧分解成CO2和H2O。该废气处理系统，具有运行稳定可靠，运行成本低，节能降耗，高效净化率，自动化水平高的优势，同时使经过处理的排放废气达到国家要求标准以内。本发明涉及的废气处理系统，可应用于全自动涂装线的大风量，低浓度废气处理领域。
附图说明
图1为本发明一实施例废气处理系统示意图。
附图标记说明
10、废气处理系统；100、废气预处理装置；200、吸附系统；300、脱附风 机；400、催化燃烧装置；500、排风烟筒；600、补冷风机；700、抽风机；800、控制装置；910、第一阻火器；920、第二阻火器。
具体实施方式
为了便于理解本发明，下面将参照相关附图对本发明进行更全面的描述。附图中给出了本发明的较佳实施例。但是，本发明可以以许多不同的形式来实现，并不限于本文所描述的实施例。相反地，提供这些实施例的目的是使对本发明的公开内容的理解更加透彻全面。
需要说明的是，当元件被称为“固定于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。
除非另有定义，本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本发明。本文所使用的术语“和/或”包括一个或多个相关的所列项目的任意的和所有的组合。
参见图1所示，本实施例公开了一种废气处理系统10。该废气处理系统10包括废气预处理装置100、吸附系统200、脱附装置、催化燃烧装置400、排风烟筒500、补冷风机600、抽风机700以及控制装置。控制装置800具有PLC电脑，可以用于人机交互，方便设置各个参数。
废气预处理装置100连接于废气源。废气预处理装置100用于将经过水洗涤后的混合废气除漆并脱水。控制装置800电性连接于废气预处理装置100。
吸附系统200具有吸附单元以用于吸附处理经过废气预处理装置100处理后的气体。吸附单元以及脱附阀门的数量均为多个。多个吸附单元并联连通于脱附风机300。脱附阀门与吸附单元一一对应。控制装置800电性连接于吸附单元。控制装置800电性连接于脱附阀门以用于控制脱附阀门打开或者关闭。
脱附装置具有脱附风机300以及脱附阀门，脱附风机300连接于吸附单元，脱附阀门设在吸附单元与脱附风机300之间，以用于打开或者关闭吸附单元。脱附风机300用于引入热风至吸附单元内以使得吸附单元解吸脱附出有机废气。 脱附风机300可以在吸附单元饱和时或者在吸附单元部分饱和时均可开启，以实现吸附单元的解吸脱附。
催化燃烧装置400具有催化燃烧床、列管热交换器。催化燃烧床连通于吸附单元，以用于吸入吸附单元解吸脱附出有机废气，并将有机废气燃烧分解成CO2和H2O。控制装置800电性连接于催化燃烧床以及列管热交换器。
列管热交换器连通在催化燃烧床以及脱附风机300之间。催化燃烧床燃烧生成的高温气体通过列管热交换器进入脱附风机300作为热风源。
在本实施例中，还包括两个阻火器。两个阻火器分别为第一阻火器910以及第二阻火器920。其中第一阻火器910设置在脱附风机300以及催化燃烧装置400之间。
排风烟筒500连接于催化燃烧床，以用于将燃烧分解生成的CO2和H2O排出。排风烟筒500与催化燃烧床之间还设有第二阻火器920。在本实施例中，吸附单元还连通于排风烟筒500，以用于将吸附单元内的部分烟气排出。
补冷风机600设置在催化燃烧床与阻火器之间，以用于对经过催化燃烧床燃烧分解成CO2和H2O进行冷却处理。控制装置800电性连接于补冷风机600。
抽风机700设置在废气预处理装置100于吸附单元之间，以用于将经过废气预处理装置100处理后的气体抽进吸附单元内。控制装置800电性连接于抽风机700。
本发明涉及的废气处理系统10，设置了废气预处理装置100、吸附系统200、脱附装置以及催化燃烧装置400。通过废气预处理装置100将经过水洗涤后的混合废气除漆并脱水。通过吸附系统200的吸附单元来吸附处理经过废气预处理装置100处理后的气体。通过脱附装置的脱附风机300来引入热风至吸附单元内以使得吸附单元解吸出有机废气。通过催化燃烧装置400的催化燃烧床来吸入吸附单元解吸出有机废气，并将有机废气燃烧分解成CO2和H2O。该废气处理系统10，具有运行稳定可靠，运行成本低，节能降耗，高效净化率，自动化水平高的优势，同时使经过处理的排放废气达到国家要求标准以内。本发明涉及的废气处理系统10，可应用于全自动涂装线的大风量，低浓度废气处理领域。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对本发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。

Claims (8)

  1. 一种废气处理系统，其特征在于，包括废气预处理装置、吸附系统、脱附装置以及催化燃烧装置；所述废气预处理装置用于对来自废气源的废气预处理；
    所述吸附系统具有吸附单元以用于对经过所述废气预处理装置处理后的气体进行吸附处理；
    所述脱附装置具有脱附风机以及脱附阀门，所述脱附风机连接于所述吸附单元，所述脱附阀门设在所述吸附单元与所述脱附风机之间，以用于打开或者关闭所述吸附单元；所述脱附风机用于引入热风至所述吸附单元内以使得所述吸附单元解吸脱附出有机废气；
    所述催化燃烧装置具有催化燃烧床，所述催化燃烧床连通于所述吸附单元，以用于吸入所述吸附单元解吸脱附出的所述有机废气，并将所述有机废气燃烧分解成CO2和H2O。
  2. 根据权利要求1所述的废气处理系统，其特征在于，所述催化燃烧装置还具有列管热交换器，所述列管热交换器连通在所述催化燃烧床以及所述脱附风机之间，所述催化燃烧床燃烧生成的气体通过列管热交换器进入脱附风机作为热风源。
  3. 根据权利要求1或2所述的废气处理系统，其特征在于，所述吸附单元以及所述脱附阀门的数量均为多个，多个所述吸附单元并联连接于所述脱附风机，所述脱附阀门与所述吸附单元一一对应。
  4. 根据权利要求1或2所述的废气处理系统，其特征在于，还包括第一阻火器，所述第一阻火器设置在所述脱附风机以及所述催化燃烧装置之间。
  5. 根据权利要求1或2所述的废气处理系统，其特征在于，还包括排风烟筒，所述排风烟筒连接于所述催化燃烧床，以用于将经过所述催化燃烧床燃烧分解生成的CO2和H2O排出。
  6. 根据权利要求5所述的废气处理系统，其特征在于，所述排风烟筒与所述催化燃烧床之间还设有第二阻火器。
  7. 根据权利要求6所述的废气处理系统，其特征在于，还包括补冷风机， 所述补冷风机设置在所述催化燃烧床与所述阻火器之间，以用于对经过所述催化燃烧床燃烧分解成的CO2和H2O进行冷却处理。
  8. 根据权利要求1或2所述的废气处理系统，其特征在于，还包括抽风机，所述抽风机设置在所述废气预处理装置于所述吸附单元之间，以用于将经过废气预处理装置处理后的气体抽进所述吸附单元内。
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CN111318127A (zh) * 2020-03-05 2020-06-23 广东盛邦环保科技有限公司 有机废气净化处理方法
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