WO2021129009A1 - 一种一体式蓄热氧化装置 - Google Patents

一种一体式蓄热氧化装置 Download PDF

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Publication number
WO2021129009A1
WO2021129009A1 PCT/CN2020/117801 CN2020117801W WO2021129009A1 WO 2021129009 A1 WO2021129009 A1 WO 2021129009A1 CN 2020117801 W CN2020117801 W CN 2020117801W WO 2021129009 A1 WO2021129009 A1 WO 2021129009A1
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WO
WIPO (PCT)
Prior art keywords
heat storage
channel
section
filter
filter cartridge
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PCT/CN2020/117801
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English (en)
French (fr)
Inventor
彭芬
汪壮
吴卫
何曦
王汉青
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航天凯天环保科技股份有限公司
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Publication of WO2021129009A1 publication Critical patent/WO2021129009A1/zh

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Classifications

    • 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
    • F23G7/061—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating
    • F23G7/065—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating using gaseous or liquid fuel
    • F23G7/066—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating using gaseous or liquid fuel preheating the waste gas by the heat of the combustion, e.g. recuperation type incinerator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
    • B01D46/2411—Filter cartridges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/66—Regeneration of the filtering material or filter elements inside the filter
    • B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/44—Details; Accessories
    • F23G5/46—Recuperation of heat
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2206/00—Waste heat recuperation
    • F23G2206/10—Waste heat recuperation reintroducing the heat in the same process, e.g. for predrying
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00—Specific waste
    • F23G2209/14—Gaseous waste or fumes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Definitions

  • the invention relates to the field of industrial waste gas purification, in particular to an integrated heat storage oxidation device.
  • smog has brought air pollution prevention and control into the scope of public attention. From the country to the local level, it has shown the importance of air pollution control.
  • Common air pollution control technologies include: direct combustion method, catalytic combustion method, regenerative oxidation method, etc.
  • the regenerative oxidation method uses a heat storage body to store and reuse a large amount of heat generated by high-temperature combustion to preheat the exhaust gas and save energy consumption. Compared with the direct combustion method, the energy consumption is lower.
  • the regenerative oxidation technology is a highly efficient organic waste gas purification technology. It has the characteristics of high thermal efficiency, low operating cost, and high purification efficiency.
  • the existing thermal storage oxidation technology whether it is a tower thermal storage oxidation device or a rotary thermal storage oxidation device, has relatively complicated equipment structure and pipeline connections, large equipment volume, and large floor space.
  • the gas is in the pipeline and equipment. Internal turbulence is formed inside, the air flow is not smooth, the pressure loss and the wind resistance are increased, the preheating effect and the combustion effect are reduced, the fuel consumption is increased, and the operating cost is increased.
  • the technical problem solved by the present invention is: in view of the existing heat storage oxidation technology, which has the problems of complicated equipment structure and pipeline, large area, poor airflow organization, and high operating cost, it provides an integrated heat storage oxidation technology.
  • the oxidation device has the advantages of simple and compact structure, smooth air flow, high purification efficiency, and low operating cost, so as to achieve the purpose of long-term efficient and stable operation with low energy consumption.
  • an integrated heat storage oxidation device including an initial effect filter section, a mist removal section, a filter cartridge fine filter section and a heat storage oxidation section integrated in a box and connected in series through a pipeline.
  • the air inlet of the primary effect filter section is provided with an equipment air inlet
  • the air outlet of the thermal storage oxidation section is provided with an equipment air outlet
  • the primary filter section is provided with a multi-layer orifice filter.
  • a plurality of filter holes are uniformly opened on the device, and the filter holes of the adjacent orifice plate filters are arranged in a staggered manner; the mist removal section is provided with a mist removal module; the heat storage oxidation section includes stacking and communicating from top to bottom.
  • the regenerator chamber I, the combustion chamber and the regenerator II, the top of the regenerator I is provided with an upper passage communicating with the regenerator I, the intake end of the upper passage is connected with a first passage, and the upper part
  • a valve I is provided between the inlet end of the channel and the first channel
  • the bottom of the regenerator II is provided with a lower channel communicating with the regenerator II
  • the inlet end of the lower channel is connected with a second channel
  • a valve II is provided between the inlet end of the lower channel and the second channel
  • the first channel and the second channel are converged and communicated with the pipeline between the filter cartridge fine filter section and the heat storage oxidation section through the inlet switch valve, so
  • the gas outlet end of the upper channel and the gas outlet end of the lower channel converge and communicate with the gas outlet end of the thermal storage oxidation section through an outlet switching valve.
  • each layer of orifice plate filter is correspondingly provided with a backwashing system.
  • a drainage system is provided at the bottom of the primary filter section.
  • first-stage filter cartridge and a second-stage filter cartridge are arranged in the fine filter section of the filter cartridge.
  • both the first-stage filter cartridge and the second-stage filter cartridge are correspondingly provided with a back-blowing system.
  • first-stage filter cartridge and the second-stage filter cartridge are installed horizontally, and the upper and lower filter cartridges of each stage filter cartridge are staggered.
  • the heat storage chamber I, the combustion chamber and the heat storage chamber II constitute a heat storage combustion module, and a heat preservation layer is provided on the outside of the heat storage combustion module.
  • an access door is provided on the side of the box body.
  • Pretreatment and anti-clogging Multi-stage filtration of the primary filter section and the filter cartridge fine filter section is adopted to ensure the pretreatment of the exhaust gas, so that the concentration of particulate matter entering the heat storage body and the catalyst is ⁇ 1mg/m 3 to prevent clogging Regenerator and catalyst (if any).
  • the initial filter section is equipped with multi-layer orifice filters, and the holes of each layer of filters are staggered to effectively intercept particulate pollutants.
  • the fine filter section of the filter cartridge adopts a two-stage high-efficiency filter cartridge, and the filter cartridge uses high-precision filter materials to filter the exhaust gas with medium and high precision.
  • thermal storage oxidation equipment covers a large area, the overall integrated series assembly design of the present invention, the thermal storage chamber I, combustion chamber, and thermal storage inside the thermal storage oxidation section Chamber II adopts vertical series connection, compact structure and small floor space.
  • the present invention is equipped with valve I, the first channel, the valve II and the second channel, and the valve I, the valve II and the inlet switch valve are linked to effectively intercept the untreated exhaust gas in the previous cycle and ensure It will not be mixed with the purified gas and then discharged from the outlet switching valve to avoid the occurrence of substandard exhaust gas.
  • the present invention removes water vapor by setting a mist removal section to reduce the heat consumption of vapor evaporation; furthermore, the primary filter section and the filter cartridge fine filter section are respectively equipped with backwashing and backflushing systems to ensure the filter material Regeneration and long-term stable operation. Compared with various filter cottons such as paint mist filter cottons that must be replaced after they are saturated, the operating cost is greatly reduced. At the same time, the setting of regenerator I, combustion chamber, and regenerator II Make full use of waste heat.
  • the present invention integrates primary effect filtration, defogging, filter cartridge high-efficiency precision filtration, and heat storage oxidation.
  • the equipment has a compact structure, a small footprint, and high purification efficiency. Low energy consumption, low operating cost, can be widely used in the purification of exhaust gas, equipment maintenance is convenient and quick, and has a wide range of application values.
  • Fig. 1 is a schematic diagram of the internal structure of an integrated thermal storage oxidation device in an embodiment.
  • Fig. 2 is a schematic diagram of air flow in the thermal storage oxidation section of an integrated thermal storage oxidation device in an embodiment.
  • Fig. 3 is a schematic diagram of the arrangement of the orifice plate filters in the primary filter section of an integrated thermal storage oxidation device in an embodiment.
  • Fig. 4 is a front view of an orifice filter in the primary filter section of an integrated thermal storage oxidation device in an embodiment.
  • Fig. 5 is a schematic diagram of a two-stage filter cartridge arrangement of a filter cartridge fine filter section of an integrated thermal storage oxidation device in an embodiment.
  • Fig. 6 is a front view of the appearance of an integrated thermal storage oxidation device in an embodiment.
  • an integrated heat storage oxidation device includes a primary effect filter section 2, a demister section 5, a filter cartridge fine filter section 8 and a heat storage oxidation section integrated in the box and connected in series through pipes. 11.
  • the side of the box body is provided with an access door 24, which is convenient for installation and replacement of internal components, and is also convenient for equipment maintenance.
  • An equipment air inlet 1 is provided at the air inlet end of the primary filter section 2, and an equipment air outlet 19 is provided at the air outlet end of the thermal storage oxidation section 11.
  • the primary filter section 2 is provided with a multi-layer orifice filter 4, the orifice filter 4 is evenly provided with a plurality of filter holes, and the filter holes of adjacent orifice filters are staggered Layout.
  • the filter holes of adjacent orifice filters are staggered. Therefore, the particles will collide with the orifice filter of the next layer.
  • the orifice filter 4 is specifically designed for particulate pollutants.
  • Each layer of orifice filter 4 is provided with a backwashing system 3 corresponding to the backwashing system 3, which includes a circulating pump, a spray pipe, and a nozzle. Under the pumping action of the circulating pump, the circulating spray liquid is sprayed out through the nozzle and directed to the orifice plate.
  • the filter is spray-washed, so that the dust or paint mist particle pollutants on the orifice filter 4 can be regularly removed, and the orifice filter 4 can be regenerated and can be reused.
  • chemicals can be added to the circulating spray liquid according to the particle contaminants. If there are paint mist particles, a paint mist modified detackifier can be added to the spray liquid to better capture the paint mist particle contaminants.
  • a drainage system 23 is provided at the bottom of the primary filter section 2 to facilitate the drainage of the heavily polluted circulating spray liquid.
  • the mist removal section 5 is provided with a mist removal module 6, which can effectively remove the water vapor generated by the backwash of the primary filter section 2, so as to avoid adverse effects on the filter cartridge fine filter section 8 at the rear end, and at the same time reduce subsequent heat storage oxidation
  • the energy consumption of section 11 reduces the heat consumption of water vapor evaporation.
  • the heat storage oxidation section 11 includes a heat storage chamber I16, a combustion chamber 17 and a heat storage chamber II20 which are sequentially stacked and connected from top to bottom.
  • the heat storage chamber I16, the combustion chamber 17 and the heat storage chamber II20 constitute a heat storage chamber.
  • a combustion module, the heat storage combustion module is provided with an insulation layer 15 outside.
  • the heat storage chamber I16 and the heat storage chamber II20 are provided with a heat storage body, or a catalyst and a heat storage body are placed at the same time.
  • the heat storage body can be a plate type heat storage body or a honeycomb heat storage body, and the combustion chamber 17 is matched
  • a combustion system is provided, which can match the fuel consumption according to the exhaust gas concentration.
  • the top of the regenerator chamber I16 is provided with an upper channel communicating with the regenerator chamber I16, the air inlet end of the upper channel is connected with a first channel 13, and the air inlet end of the upper channel is connected with the first channel.
  • Valve I14 the bottom of the regenerator II20 is provided with a lower channel communicating with the regenerator II20, the air inlet end of the lower channel is connected with a second channel 22, and the air inlet end of the lower channel is connected to the second channel
  • a valve II 21 is provided between the first channel 13 and the second channel through 22 through the inlet switching valve 12 to communicate with the pipeline between the filter cartridge fine filter section and the heat storage oxidation section.
  • the air outlet end and the lower part of the upper channel The gas outlet end of the channel converges and communicates with the gas outlet end of the thermal storage oxidation section 11 through the outlet switching valve 18.
  • the filter cartridge fine filter section 8 is provided with a first-stage filter cartridge 9 and a second-stage filter cartridge 10.
  • the two-stage filter cartridge adopts high-precision filter materials to filter the exhaust gas with medium and high precision, so that the heat storage body and the catalyst
  • the concentration of particulate dust is ⁇ 1mg/m 3 to prevent blockage of the heat storage body and the catalyst.
  • the first-stage filter cartridge 9 and the second-stage filter cartridge 10 are installed horizontally, which is not only easy to install, but also a filtering method in the direction of airflow, which is beneficial to improve the filtering effect.
  • the staggered arrangement of the upper and lower filter cartridges of each stage filter cartridge effectively avoids the dust from the upper filter cartridge falling on the lower filter cartridge when the filter cartridge is blown back.
  • the first-stage filter cartridge 9 and the second-stage filter cartridge 10 are correspondingly provided with a back-blowing system 7, and the back-blowing system 7 includes an air bag connected by an air path, a compressed air storage tank, and a back-blowing solenoid valve. And blowback air nozzle.
  • the back-blowing system 7 can periodically perform back-blowing regeneration of the filter cartridge.
  • the exhaust gas enters from the air inlet 1 of the equipment, passes through the multi-layer orifice filter in the primary filter section 2 for the first stage filtration, and then passes through the demister section 5 to remove water vapor and then enters the filter cartridge fine filter section 8 and passes through the first stage filtration.
  • the exhaust gas filtered by the cartridge 9 and the second-stage filter cartridge 10 enters the heat storage oxidation section 11 through the inlet switching valve 12.
  • the inlet switch valve 12 is pushed to the bottom to open the inlet end of the first channel and the inlet end of the second channel is closed.
  • the outlet switch valve 18 is pushed to the top to close the outlet end of the upper channel and the lower channel.
  • the valve I14 When the air outlet is opened, the valve I14 is opened in linkage to make the first channel and the upper channel realize air flow communication, and the valve II21 is linked to close, so that the second channel and the lower channel are cut off to prevent the purified air flowing from the top to the lower channel from entering the second channel.
  • the exhaust gas enters the regenerator I16 through the first passage 13, the valve I14 and the upper passage, and exchanges heat with the regenerator that has stored heat in the regenerator I16.
  • the exhaust gas enters the combustion chamber 17 after being warmed up and preheated. Through the combustion system, the exhaust gas is oxidized at high temperature to produce carbon dioxide and water to discharge and release heat energy.
  • the processed high-temperature clean gas is then passed through the ceramic body of the regenerator II20 for heat storage.
  • the cooled gas is discharged from the outlet end of the lower channel.
  • the trend is shown by the solid arrow in Figure 2.
  • the exhaust gas remaining in the first channel and the upper channel is burned.
  • the valve plate of the outlet switching valve 18 is pushed to the bottom to close the outlet end of the lower channel and open the outlet end of the upper channel.
  • the valve II21 is opened in linkage, so that the second channel and the lower channel are in air flow communication, and the door I14 is closed in conjunction to make The first channel and the upper channel are cut off to prevent the purified air flowing from the bottom to the upper channel from entering the first channel.
  • the system switches to the air flow mode from the regenerator II20 to the exhaust gas and from the regenerator I16.
  • the airflow direction is as shown in the figure.
  • the cycle repeats in this way to realize the cyclic treatment of exhaust gas.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Incineration Of Waste (AREA)

Abstract

一种一体式蓄热氧化装置，包括依次串联的初效过滤段（2）、除雾段（5）、滤筒精滤段（8）和蓄热氧化段（11），初效过滤段（2）内设置有多层孔板过滤器（4）；蓄热氧化段（11）包括自上而下依次叠置且连通的蓄热室Ⅰ（16）、燃烧室（17）和蓄热室Ⅱ（20），蓄热室Ⅰ（16）的顶部设置有与蓄热室Ⅰ（16）连通的上部通道，上部通道的进气端连通设置有第一通道（13），上部通道的进气端与第一通道（13）之间设置有阀门Ⅰ（14），蓄热室Ⅱ（20）的底部设置有与蓄热室Ⅱ（20）连通的下部通道，下部通道的进气端连通设置有第二通道（22），下部通道的进气端与第二通道（22）之间设置有阀门Ⅱ（21）。该蓄热氧化装置具有结构简单紧凑、气流顺畅、净化效率高、运行成本低的优点，从而达到了长期高效稳定、低能耗运行的目的。

Description

一种一体式蓄热氧化装置 技术领域
本发明涉及工业废气净化领域，具体涉及一种一体式蓄热氧化装置。
 背景技术
近些年，“雾霾”一词将大气污染防治推向了大众的关注的范围内，从国家到地方都表明对大气污染治理的重视。常见的大气污染治理技术包括：直接燃烧法、催化燃烧法、蓄热氧化法等。蓄热氧化法通过利用蓄热体对高温燃烧产生的大量热量进行储存回用，以预热废气，节省能量消耗，相比直接燃烧法能耗更低。与传统的催化燃烧、直接燃烧相比，蓄热氧化技术是一种高效的有机废气净化技术，具有热效率高、运行成本低、净化效率高等特点，浓度适宜时，还可自热运行，进行二次余热回收利用，可大大降低运行成本。现有的蓄热氧化技术，无论是塔式蓄热氧化装置还是旋转式蓄热氧化装置，都存在设备结构和管路连接相对复杂、设备体积大、占地面积大，气体在管路及设备内形成内部湍流，气流不顺畅，增大压损、风阻大，还使得预热效果及燃烧效果降低，增大燃料消耗，增加运行成本等问题。
 技术问题
有鉴于此，本发明解决的技术问题是：针对现有的蓄热氧化技术存在设备结构及管路复杂、占地面积大、气流组织不畅、运行成本高等问题，提供一种一体式蓄热氧化装置，使其具有结构简单紧凑、气流顺畅、净化效率高、运行成本低的优点，以达到长期高效稳定、低能耗运行的目的。
 技术解决方案
本发明通过以下技术手段解决上述问题：一种一体式蓄热氧化装置，包括集成在箱体内且通过管道依次串联的初效过滤段、除雾段、滤筒精滤段和蓄热氧化段，所述初效过滤段的进气端设置有设备进风口，所述蓄热氧化段的出气端设置有设备出风口，初效过滤段内设置有多层孔板过滤器，所述孔板过滤器上均匀开设有多个过滤孔，相邻孔板过滤器的过滤孔错开布置；所述除雾段内设置有除雾模块；所述蓄热氧化段包括自上而下依次叠置且连通的蓄热室Ⅰ、燃烧室和蓄热室Ⅱ，所述蓄热室Ⅰ的顶部设置有与蓄热室Ⅰ连通的上部通道，所述上部通道的进气端连通设置有第一通道，上部通道的进气端与第一通道之间设置有阀门Ⅰ，所述蓄热室Ⅱ的底部设置有与蓄热室Ⅱ连通的下部通道，所述下部通道的进气端连通设置有第二通道，下部通道的进气端与第二通道之间设置有阀门Ⅱ，所述第一通道和第二通道通过入口切换阀与滤筒精滤段和蓄热氧化段之间的管道汇聚连通，所述上部通道的出气端和下部通道的出气端通过出口切换阀与蓄热氧化段的出气端汇聚连通。
进一步，每层孔板过滤器对应设置有反冲洗系统。
进一步，所述初效过滤段的底部设置有排液系统。
进一步，所述滤筒精滤段内设置有第一级滤筒和第二级滤筒。
进一步，所述第一级滤筒和第二级滤筒均对应设置有反吹系统。
进一步，所述第一级滤筒和第二级滤筒均横向安装，每级滤筒的上下滤筒之间错开布置。
进一步，所述蓄热室Ⅰ、燃烧室和蓄热室Ⅱ构成蓄热燃烧模块，所述蓄热燃烧模块的外部设置有保温层。
进一步，所述箱体的侧面设置有检修门。
 有益效果
本发明的有益效果。
1) 预处理防堵：采用初效过滤段和滤筒精滤段多级过滤，确保做好废气的预处理，使得进入蓄热体和催化剂的颗粒物粉尘浓度≤1mg/ m 3，以防堵塞蓄热体和催化剂（如有）。初效过滤段设置多层孔板过滤器，各层过滤器之间孔位错开设置，对颗粒污染物进行有效拦截。滤筒精滤段采用两级高效滤筒，滤筒采用高精度过滤材料，对废气进行中高精度过滤。
2) 占地面积小：多塔式（两塔及以上）蓄热氧化设备占地面积大，本发明整体一体式串联拼装设计，蓄热氧化段内部的蓄热室I、燃烧室、蓄热室Ⅱ采用立式串联连接，结构紧凑，占地面积小。
3) 无需设置吹扫室：本发明设置了阀门I、第一通道、阀门Ⅱ和第二通道，并且阀门I、阀门Ⅱ和入口切换阀联动，有效拦截上一循环未处理完的废气，确保其不会和净化完的气体一起混合后从出口切换阀排出， 避免尾气不达标现象的发生。
4) 运行成本低：本发明通过设置除雾段去除水汽，减少水汽蒸发的热量消耗；再有，初效过滤段和滤筒精滤段分别设有反冲洗和反吹系统，确保过滤材料的再生，并长期稳定运行，相比于各种过滤棉如漆雾过滤棉等达饱和后必须进行更换而言，大大降低了运行成本，同时蓄热室I、燃烧室、蓄热室Ⅱ的设置将余热进行充分利用。
由上所述，本发明集初效过滤、除雾、滤筒高效精滤、蓄热氧化于一体，没有复杂的管路系统及气流通道，设备结构紧凑、占地面积小、净化效率高、能耗低、运行成本低，可广泛应用于废气的净化，设备维护方便快捷，具有广泛的应用价值。
 附图说明
下面结合附图和实施例对本发明作进一步描述。
图1为实施例中的一种一体式蓄热氧化装置的内部结构示意图。
图2为实施例中的一种一体式蓄热氧化装置的蓄热氧化段的气流流动示意图。
图3为实施例中的一种一体式蓄热氧化装置的初效过滤段的孔板过滤器的布置示意图。
图4为实施例中的一种一体式蓄热氧化装置的初效过滤段的孔板过滤器的正视图。
图5为实施例中的一种一体式蓄热氧化装置的滤筒精滤段的两级滤筒布置示意图。
图6为实施例中的一种一体式蓄热氧化装置的外形主视图。
图中标号：1-设备进风口，2-初效过滤段，3-反冲洗系统，4-孔板过滤器，5-除雾段，6-除雾模块，7-反吹系统，8-滤筒精滤段，9-第一级滤筒，10-第二级滤筒，11-蓄热氧化段，12-入口切换阀，13-第一通道，14-阀门I，15-保温层，16-蓄热室Ⅰ，17-燃烧室，18-出口切换阀，19-设备出风口，20-蓄热室Ⅱ，21-阀门Ⅱ，22-第二通道，23-排液系统，24-检修门。
 本发明的实施方式
下面通过附图和实施例对本发明进一步详细说明。通过这些说明，本发明的特点和优点将变得更为清楚明确。显然,所描述的实施例仅是本发明的一部分实施例,而不是全部的实施例。
如图1-6所示，一种一体式蓄热氧化装置，包括集成在箱体内且通过管道依次串联的初效过滤段2、除雾段5、滤筒精滤段8和蓄热氧化段11，所述箱体的侧面设置有检修门24，便于安装及更换内部构件，也便于设备维护。
所述初效过滤段2的进气端设置有设备进风口1，所述蓄热氧化段11的出气端设置有设备出风口19。如图3所示，所述初效过滤段2内设置有多层孔板过滤器4，所述孔板过滤器4上均匀开设有多个过滤孔，相邻孔板过滤器的过滤孔错开布置。过滤时，含颗粒污染物的工业废气高速穿过前一层的过滤孔，而相邻孔板过滤器4的过滤孔又错开布置，因此，颗粒物碰撞到后一层的孔板过滤器后会顺着后一层的孔板过滤器面板流向底部。孔板过滤器4是专门针对含颗粒污染物而设计，它避免了高压静电过滤系统所需较高的维护要求及漆雾过滤棉等高昂的材料更换费用。各孔板过滤器的间距及过滤孔之间的错位量，由空气速度、颗粒速度及颗粒偏转角等计算得出。气流走向如图3中箭头所示。
每层孔板过滤器4对应设置有反冲洗系统3，所述反冲洗系统3包括循环泵、喷淋管道和喷嘴，在循环泵抽送作用下，循环喷淋液经喷嘴喷出而对孔板过滤器进行喷洗，从而可定期对孔板过滤器4上的粉尘或漆雾颗粒污染物进行清除，孔板过滤器4得以再生，可重复使用。此外，可根据颗粒污染物的情况在循环喷淋液中添加药剂，如存在漆雾颗粒，可在喷淋液中添加漆雾改性消粘剂，更好的捕捉漆雾颗粒污染物。进一步的，如图6所示，所述初效过滤段2的底部设置有排液系统23，便于将严重污染的循环喷淋液排出。
所述除雾段5内设置有除雾模块6，可将初效过滤段2反冲洗产生的水汽进行有效去除，以免对后端的滤筒精滤段8产生不利影响，同时减少后续蓄热氧化段11的能量消耗，减少水气蒸发耗热。
所述蓄热氧化段11包括自上而下依次叠置且连通的蓄热室Ⅰ16、燃烧室17和蓄热室Ⅱ20，所述蓄热室Ⅰ16、燃烧室17和蓄热室Ⅱ20构成蓄热燃烧模块，所述蓄热燃烧模块的外部设置有保温层15。所述蓄热室Ⅰ16和蓄热室Ⅱ20内设置蓄热体，或同时放置催化剂和蓄热体，所述蓄热体可采用板式蓄热体或蜂窝状蓄热体，所述燃烧室17配套设置有燃烧系统，所述燃烧系统可根据废气浓度情况，匹配燃料耗量，当废气浓度可维持自热平衡时，燃烧系统无需外部提供能源，最大程度地节省能源，降低成本。所述蓄热室Ⅰ16的顶部设置有与蓄热室Ⅰ16连通的上部通道，所述上部通道的进气端连通设置有第一通道13，上部通道的进气端与第一通道之间设置有阀门Ⅰ14，所述蓄热室Ⅱ20的底部设置有与蓄热室Ⅱ20连通的下部通道，所述下部通道的进气端连通设置有第二通道22，下部通道的进气端与第二通道之间设置有阀门Ⅱ21，所述第一通道13和第二通道通22过入口切换阀12与滤筒精滤段和蓄热氧化段之间的管道汇聚连通，所述上部通道的出气端和下部通道的出气端通过出口切换阀18与蓄热氧化段11的出气端汇聚连通。
所述滤筒精滤段8内设置有第一级滤筒9和第二级滤筒10，两级滤筒采用高精度过滤材料，对废气进行中高精度过滤，使得进入蓄热体和催化剂的颗粒物粉尘浓度≤1mg/ m 3，以防堵塞蓄热体和催化剂。优选地，所述第一级滤筒9和第二级滤筒10采用横装的方式，不仅便于安装，而且为顺气流方向的过滤方式，有利于提高过滤效果。每级滤筒的上下滤筒之间错开布置，有效避免了在对滤筒进行反吹时、上层滤筒的粉尘掉落在下层滤筒上。优选地，所述第一级滤筒9和第二级滤筒10均对应设置有反吹系统7，所述反吹系统7包括气路连通的气包、压缩空气储罐、反吹电磁阀和反吹气嘴。通过反吹系统7可定期对滤筒进行反吹再生。
具体的工作过程如下。
废气由设备进风口1进入，经初效过滤段2内的多层孔板过滤器进行第一级过滤，而后经除雾段5去除水汽后进入滤筒精滤段8，经第一级滤筒9和第二级滤筒10过滤后的废气由入口切换阀12进入蓄热氧化段11。首先，入口切换阀12阀片推至底部将第一通道的进气端打开、第二通道的进气端关闭，出口切换阀18阀片推至顶部将上部通道的出气端关闭、下部通道的出气端打开，阀门Ⅰ14联动打开，使第一通道和上部通道实现气流连通，阀门Ⅱ21联动关闭，使第二通道和下部通道实现气流截断，避免从上向下流入下部通道的净化气流入第二通道，废气经第一通道13、阀门Ⅰ14及上部通道进入蓄热室Ⅰ16，与蓄热室Ⅰ16内已经蓄存热量的蓄热体进行热交换，废气经过升温预热后，进入燃烧室17，通过燃烧系统燃烧，将废气高温氧化生成二氧化碳与水排出并释放热能，处理后的高温洁净气体再经过蓄热室Ⅱ20的陶瓷体进行蓄热，降温后的气体由下部通道的出气端排出，气流走向如图2中的实线箭头所示。达到设定切换时间时，首先将入口切换阀Ⅰ12阀片推至顶部将第一通道的进气端关闭、第二通道的进气端打开，待残留在第一通道和上部通道内的废气燃烧后，出口切换阀18阀片推至底部将下部通道的出气端关闭、上部通道的出气端打开，同时，阀门Ⅱ21联动打开，使第二通道与下部通道实现气流连通，门Ⅰ14联动关闭，使第一通道和上部通道实现气流截断，避免从下向上流入上部通道的净化气流入第一通道，系统切换至由蓄热室Ⅱ20进入废气、由蓄热室Ⅰ16排出的气流方式，气流走向如图2中的虚线箭头所示，如此循环往复，实现废气的循环处理。
本申请通过入口切换阀、阀门Ⅰ14、阀门Ⅱ21和出口切换阀之间的联通控制，在保证了循环预热、储热、燃烧净化废气的同时，避免了管道内残留的废气与净化后的气体混合排放，而且不需要单独设置吹扫室，蓄热氧化段的整体结构更加合理、可靠、高效。
最后说明的是，以上实施例仅用以说明本发明的技术方案而非限制，尽管参照较佳实施例对本发明进行了详细说明，本领域的普通技术人员应当理解，可以对本发明的技术方案进行修改或者等同替换，而不脱离本发明技术方案的宗旨和范围，其均应涵盖在本发明的权利要求范围当中。

Claims (8)

  1. 一种一体式蓄热氧化装置，其特征在于：包括集成在箱体内且通过管道依次串联的初效过滤段、除雾段、滤筒精滤段和蓄热氧化段，所述初效过滤段的进气端设置有设备进风口，所述蓄热氧化段的出气端设置有设备出风口，初效过滤段内设置有多层孔板过滤器，所述孔板过滤器上均匀开设有多个过滤孔，相邻孔板过滤器的过滤孔错开布置；所述除雾段内设置有除雾模块；所述蓄热氧化段包括自上而下依次叠置且连通的蓄热室Ⅰ、燃烧室和蓄热室Ⅱ，所述蓄热室Ⅰ的顶部设置有与蓄热室Ⅰ连通的上部通道，所述上部通道的进气端连通设置有第一通道，上部通道的进气端与第一通道之间设置有阀门Ⅰ，所述蓄热室Ⅱ的底部设置有与蓄热室Ⅱ连通的下部通道，所述下部通道的进气端连通设置有第二通道，下部通道的进气端与第二通道之间设置有阀门Ⅱ，所述第一通道和第二通道通过入口切换阀与滤筒精滤段和蓄热氧化段之间的管道汇聚连通，所述上部通道的出气端和下部通道的出气端通过出口切换阀与蓄热氧化段的出气端汇聚连通。
  2. 根据权利要求1所述的一体式蓄热氧化装置，其特征在于：每层孔板过滤器对应设置有反冲洗系统。
  3. 根据权利要求2所述的一体式蓄热氧化装置，其特征在于：所述初效过滤段的底部设置有排液系统。
  4. 根据权利要求3所述的一体式蓄热氧化装置，其特征在于：所述滤筒精滤段内设置有第一级滤筒和第二级滤筒。
  5. 根据权利要求4所述的一体式蓄热氧化装置，其特征在于：所述第一级滤筒和第二级滤筒均对应设置有反吹系统。
  6. 根据权利要求5所述的一体式蓄热氧化装置，其特征在于：所述第一级滤筒和第二级滤筒均横向安装，每级滤筒的上下滤筒之间错开布置。
  7. 根据权利要求1-6任意一项所述的一体式蓄热氧化装置，其特征在于：所述蓄热室Ⅰ、燃烧室和蓄热室Ⅱ构成蓄热燃烧模块，所述蓄热燃烧模块的外部设置有保温层。
  8. 根据权利要求7所述的一体式蓄热氧化装置，其特征在于：所述箱体的侧面设置有检修门。
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CN115970407A (zh) * 2023-01-09 2023-04-18 江苏国艾健康医疗科技有限公司 一种热量可循环利用的艾烟净化器
CN115970407B (zh) * 2023-01-09 2023-10-03 江苏国艾健康医疗科技有限公司 一种热量可循环利用的艾烟净化器

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