WO2021077986A1 - 一种吸附材料脱附再生系统 - Google Patents

一种吸附材料脱附再生系统 Download PDF

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Publication number
WO2021077986A1
WO2021077986A1 PCT/CN2020/117832 CN2020117832W WO2021077986A1 WO 2021077986 A1 WO2021077986 A1 WO 2021077986A1 CN 2020117832 W CN2020117832 W CN 2020117832W WO 2021077986 A1 WO2021077986 A1 WO 2021077986A1
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Prior art keywords
section box
desorption
purification section
heat exchanger
outlet
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PCT/CN2020/117832
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English (en)
French (fr)
Inventor
彭芬
汪壮
吴卫
何曦
谢东
朱辉
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航天凯天环保科技股份有限公司
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Publication of WO2021077986A1 publication Critical patent/WO2021077986A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/34—Regenerating or reactivating
    • B01J20/3483—Regenerating or reactivating by thermal treatment not covered by groups B01J20/3441 - B01J20/3475, e.g. by heating or cooling
    • 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
    • B01D53/06—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 with moving adsorbents, e.g. rotating beds
    • 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
    • B01D2257/00—Components to be removed
    • B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
    • B01D2257/708—Volatile organic compounds V.O.C.'s

Definitions

  • the invention belongs to the field of industrial waste gas purification, and specifically relates to an adsorption material desorption regeneration system.
  • the spray paint and baking paint exhaust gas of auto repair shops are often treated with technologies such as "activated carbon adsorption", “photocatalysis” or “low temperature plasma”, but they all have certain defects.
  • the activated carbon adsorption method has high purification efficiency, but the activated carbon needs to be replaced after the adsorption is saturated, and the saturated activated carbon must be disposed of as hazardous waste.
  • a desorption system may be configured for catalytic combustion treatment, and vehicle maintenance
  • vehicle maintenance For small-scale projects such as shops, it is bound to cause high initial investment; photocatalysis has the advantages of low maintenance costs and low energy consumption, but the purification efficiency is very limited and the lifespan is short; low-temperature plasma has relatively high requirements for equipment safety and operation High, especially the recent explosion accidents, have begun to restrict its use, and the safety is worrying.
  • Chinese patent CN206715653U discloses a mobile VOCs exhaust gas desorption and purification integrated machine, including a filter, a desorption fan, a heat exchanger, a catalytic oxidation device, an exhaust cylinder, an integrated machine housing and a mobile body.
  • the system has limited processing capacity ,
  • the piping system is complex, the structure is not compact enough, and the floor space is large.
  • Chinese patent CN108854448A discloses a VOCs mobile adsorption and desorption-catalytic combustion linkage device, which has the characteristics of continuous operation of adsorption and desorption, but can not desorb a separate adsorption device, and the annular porous sleeve used determines that it can only be used for Specific types of adsorbents, such as spherical or columnar, and honeycomb are not applicable.
  • the technical problem solved by the present invention is to provide an adsorption material desorption regeneration system for small spray paint booths such as automobile repair shops that adopt adsorption purification technology, so as to facilitate unified desorption and regeneration treatment of replaced adsorption materials.
  • the present invention adopts the following technical solutions to achieve.
  • An adsorbent material desorption regeneration system comprising a desorption section box body 1 and a purification section box body 3 that are integrally connected.
  • the desorption section box body 1 and the purification section box body 3 pass through the purification section box body inlet 2 and The outlet 21 of the purification section box realizes air circulation and communication.
  • the inside of the desorption section box body 1 is filled with the adsorption material to be desorbed in the channel between the purification section box body inlet 2 and the purification section box body outlet 21.
  • the purification section box 3 is provided with a heat exchanger 6 and a catalytic combustion zone 8 and a heating zone 12 that are connected to each other.
  • the heat exchanger 6 includes two sets of heat exchange channels inside, and two correspondingly communicating channels are provided on the outside.
  • the inlet 2 is connected, the first outlet 14 of the heat exchanger is connected with the heating zone 12, the second inlet 7 of the heat exchanger is connected with the catalytic combustion zone 8, and the second outlet 17 of the heat exchanger is connected with the outlet of the purification section box.
  • 21 is connected, the heating zone 12 is provided with heating components, and the catalytic combustion zone 8 is provided with a catalyst for catalytic combustion of desorbed gas.
  • a desorption fan 20 that drives the circulation of air flow is also provided inside the purification section box 3.
  • the desorption section box 1 is provided with a number of adsorbent drawers 24 for filling adsorbents. All the adsorbent drawers 24 are stacked and fixed together and are rotatably supported at the entrance of the purification section box through a rotating shaft 23. In the passage between 2 and the outlet 21 of the purification section box, the rotating shaft 23 is in transmission connection with the rotating motor 22, and the adsorption material drawer is driven to rotate by the rotating motor to improve the uniformity of the adsorption material desorption.
  • the center of the adsorbent drawer 24 is provided with an assembly hole for transmission with the rotating shaft 23, and all the adsorbent drawers 24 are sleeved and supported on the rotating shaft 23 through the assembly hole.
  • the outer wall of the purification section box 3 is wrapped with a thermal insulation material 4 to heat the inside of the purification section box to avoid heat loss and potential safety hazards caused by excessively high external temperature of the box.
  • a plurality of catalyst drawers 10 filled with catalysts are arranged in the catalytic combustion zone 8, and the catalyst drawers 10 are fixed in the catalytic combustion zone 8 through partitions 9.
  • a plurality of groups of heating pipes 13 are distributed in the heating zone 12, and a first temperature sensor 11 is arranged between the heating zone 12 and the catalytic combustion zone 8.
  • the control of the first temperature sensor 11 and the heating pipe 13 is Module feedback connection, through the temperature detection feedback of the first temperature sensor, adjust the number of heating pipes working in the heating zone, and perform precise heating control on the desorption gas.
  • a supplemental cooling air valve 18 is provided inside the purification section box 3, and the supplemental cooling air valve 18 is connected in parallel to the air inlet end of the desorption fan 20, and is arranged at the second heat exchanger along with the desorption fan 20.
  • the second outlet 17 of the heat exchanger is provided with a second temperature sensor 19 that controls the opening and closing of the supplemental cooling air valve 18, and the supplementary cooling air valve serves as the air inlet of the entire system at the same time. Combined with the temperature detection feedback of the second temperature sensor, the temperature of the desorption gas entering the box of the desorption section is adjusted.
  • the purification section box 3 is also provided with an exhaust valve 26 which is arranged in parallel between the catalytic combustion zone 8 and the second inlet 7 of the heat exchanger.
  • the catalytic combustion zone 8 and There is also a third temperature sensor 27 between the second inlet 7 of the heat exchanger that controls the opening and closing of the exhaust valve 26.
  • the third temperature sensor detects the temperature of the high-temperature gas that enters the heat exchanger after the recovery and combustion, and Linked with the exhaust valve to avoid excessive internal temperature of the system.
  • the heat exchanger 6 adopts a plate-type dividing wall heat exchanger or a back-shaped dividing wall heat exchanger, and the inside is divided into two sets of circulation heat exchange channels by heat exchange plates.
  • the desorption section box body 1 is detachably fixed to the purification section box body 3 through a flange structure, and the purification section box body 3 is fixed on a bottom wheel.
  • the entire system equipment is easy to move.
  • the invention aims at a simple desorption device without a desorption regeneration system, and centrally processes the replaced adsorption materials, can centrally perform unified desorption treatment on multiple sets of small exhaust gas adsorption equipment, and solves the operating cost of the entire machine with a separate desorption system. High question.
  • the desorption section box body and the purification section box body of the present invention can be detachably connected, and the entire purification section box body can also be directly connected to the exhaust gas adsorption equipment for removal treatment.
  • the present invention has the following beneficial effects.
  • the desorption section box body and the purification section box body of the present invention are separable, and can be applied to the equipment reserved for desorption inlet and outlet, or the adsorption material must be taken out for desorption regeneration, and it is applicable to different adsorption materials. It can be placed in the drawer of adsorbent material for desorption treatment.
  • the desorption temperature is flexible and adjustable.
  • the invention is suitable for desorption and regeneration of adsorption materials with different desorption temperatures.
  • the temperature sensor detects that the temperature is higher than the required desorption temperature of the adsorbent material, open the supplemental cooling air valve, adjust the temperature to a suitable range, and then the heat exchanger will send the desorption gas adjusted for heat exchange into the desorption section box.
  • the adsorption material performs desorption to ensure the high efficiency and safety of desorption. Whether the heating tube of the heating zone is turned on or not, and how many groups are turned on, need to be determined according to the temperature detection result of the temperature sensor.
  • the temperature control is more accurate and energy-saving.
  • the heating method is safe and reliable.
  • the invention adopts electric heating, which not only has more uniform heating, but also has higher safety.
  • the invention adopts an integrated modular design, and both the desorption section and the purification section are integrated and arranged in the box body, there is no complicated pipeline inside, the structure is compact, the floor space is small, and the movement is convenient.
  • the adsorption material desorption regeneration system disclosed in the present invention adopts a mobile design of an integrated machine, compact structure, high purification efficiency, low energy consumption, and low operating cost. It can be widely used in various adsorption equipment and adsorption equipment. Material desorption and purification, 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 the adsorption material desorption regeneration system in the embodiment.
  • Fig. 2 is a view from the direction A in Fig. 1, which is mainly a schematic diagram of the inlet and outlet on the purification section.
  • Figures 3a and 3b are schematic diagrams of the inside of the heat exchanger in the embodiment.
  • Fig. 4 is a working schematic diagram of the adsorption material desorption regeneration system in the embodiment connected to an external exhaust gas adsorption device.
  • the adsorption material desorption regeneration system in the figure is a specific embodiment of the present invention, and specifically includes two parts: a desorption section box 1 and a purification section box 3, where the desorption section box 1 is used for High-temperature gas desorption treatment is performed on the adsorbent material, and a drawer 24 for loading the adsorbent material to be desorbed is arranged inside; the purification box 3 recovers the waste heat of the desorbed gas and performs catalytic combustion treatment, and removes the desorbed gas Of harmful substances.
  • the desorption section box body 1 and the purification section box body 3 realize the circulating communication of the desorption airflow through the purification section box body inlet 2 and the purification section box body outlet 21, wherein the purification section box body inlet 2 and the purification section box body outlet 21 They are all set on the purification section box 3, as shown in FIG. 2, and the purification section box inlet 2 and the purification section box outlet 21 are respectively located at the upper and lower ends of the adsorption material drawer 24 inside the desorption section box, so that it enters the desorption section.
  • the desorption gas inside the attachment box 1 must pass through the adsorbent drawer 24 and fully contact the adsorbent filled inside to achieve desorption.
  • a heat exchanger 6, a catalytic combustion zone 8 and a heating zone 12 are arranged in the purification section box 3.
  • the heat exchanger 6, the heating zone 12 and the catalytic combustion zone 8 are connected in sequence, and can be passed through a pipe arranged inside the purification section box 3.
  • the path communication may also be connected to each other through a path formed by a partition provided inside the purification section box 3.
  • the heat exchanger 6 is provided with two sets of heat exchange channels, and there are four inlets and outlets for entering and leaving the two sets of channels, respectively: the first inlet of the heat exchanger 5, the first outlet of the heat exchanger 14, and the heat exchange The second inlet of the heat exchanger 7 and the second outlet 17 of the heat exchanger.
  • the first inlet 5 of the heat exchanger is connected to the inlet 2 of the purification section box, and is used to pass the desorbed exhaust gas into the heat exchanger and use the heat exchange
  • the heat exchanger 6 conducts preliminary heat exchange and temperature increase of this part of the exhaust gas.
  • the first outlet 14 of the heat exchanger is connected to the heating zone 12, and is used to send the desorbed gas after heat exchange to the heating zone 12 through the heating components inside the heating zone 12. Heating up again, so that the desorbed gas reaches a temperature that can be catalytically combusted, and then sent to the catalytic combustion zone 8 for catalytic combustion.
  • the second inlet 7 of the heat exchanger is connected to the catalytic combustion zone 8, and the high-temperature gas after catalytic combustion is sent to the heat exchange
  • the second outlet 17 of the heat exchanger is connected with the outlet 21 of the purification section box to send the desorbed gas after heat exchange and cooling.
  • the high temperature gas after catalytic combustion and the low temperature gas after desorption are used in the heat exchanger Perform heat exchange to realize the recovery and utilization of waste heat from catalytic combustion in the desorption process.
  • a desorption fan 20 is provided between the second outlet 17 of the heat exchanger and the outlet 21 of the purification section box, and the flow power of the air flow is provided by the desorption fan 20.
  • this embodiment is also provided with a supplemental cooling air valve 18 inside the purification section box 3, and the supplemental cooling air valve 18 is used as the air inlet of the external air into the internal system.
  • the supplemental cooling air valve 18 is connected in parallel to the air inlet of the desorption fan 20.
  • the desorption fan 20 is arranged between the second outlet 17 of the heat exchanger and the outlet 21 of the purification section box.
  • the supplemental cooling air valve 18 adopts an electronic control valve, and the second outlet 17 of the heat exchanger is provided with a second temperature sensor 19 that controls the opening and closing of the supplementary cooling air valve 18, according to the output from the inside of the heat exchanger 6 to the inside of the desorption section box. Adjust the temperature of the desorption gas and adjust the cold air entering the box of the desorption section. When the temperature of the desorption gas entering the box 1 of the desorption section exceeds the desorption temperature, open the supplemental cooling air valve 18 and let in fresh air to reduce the desorption. After the temperature of the gas reaches the required desorption temperature, the supplemental cooling air valve 18 is closed, and in other cases, the supplemental cooling air valve 18 is closed.
  • the heat exchanger 6 in this embodiment adopts a plate-type dividing wall heat exchanger or a back-shaped dividing wall heat exchanger, and the inside is divided into zigzag or back-shaped circulation heat exchange channels by heat exchange plates.
  • the heat exchanger 6 has the function of closing some of the internal passages according to the temperature required for desorption to realize a partitioned or full heat exchange method.
  • the second temperature sensor 19 is also feedback-controlled with the function switching control unit of the heat exchanger 6.
  • the desorption temperature of honeycomb activated carbon is generally 80-100°C
  • the molecular sieve switch The desorption temperature of the wheel is generally 200-220°C
  • the temperature of the catalytic combustion outlet is generally as high as 400-500°C. Therefore, the high-temperature gas at the catalytic combustion outlet and the low-temperature gas at the desorption outlet can be used to make full use of the waste heat.
  • the temperature sensor 19 monitors the temperature of the desorption gas discharged from the outlet 17 of the heat exchanger to meet the desorption temperature of different adsorption materials.
  • a number of catalyst drawers 10 filled with catalysts are arranged in the catalytic combustion zone 8.
  • the catalyst drawers 10 are fixed in the catalytic combustion zone 8 through partitions 9.
  • the catalyst drawer 10 adopts a mesh plate, and the desorbed gas will interact with the inside of the catalyst drawer 10 after reaching the catalytic temperature.
  • Catalytic combustion reaction occurs on the catalyst.
  • Catalytic combustion referred to here does not refer to real combustion, but refers to the harmful substances in the desorbed gas that react with the catalyst after reaching the catalytic temperature to form harmless carbon dioxide and water.
  • the heating pipes 13 adopt electric heating pipes that can be temperature-controlled.
  • a first temperature sensor 11 is provided between the heating zone 12 and the catalytic combustion zone 8 to detect the heating Zone 12 enters the high-temperature desorption gas temperature of catalytic combustion zone 8.
  • the first temperature sensor 11 is connected to the control module of the heating tube 13, and the number of heating tubes working in the heating zone is adjusted through the temperature detection feedback of the first temperature sensor.
  • the temperature of the desorbed gas entering the catalytic combustion zone 8 is lower than the catalytic temperature, increase the number of heating pipes in the heating zone 12.
  • the temperature of the desorbed gas entering the catalytic combustion zone 8 reaches or exceeds the catalytic temperature, reduce heating
  • the number of heating tubes inside the zone 12 can be used for precise heating control of the desorption gas.
  • the purifying section box 3 is also provided with an exhaust valve 26, which is arranged in parallel between the catalytic combustion zone 8 and the second inlet 7 of the heat exchanger.
  • the exhaust valve 26 adopts an electronic control valve.
  • a third temperature sensor 27 for controlling the opening and closing of the exhaust valve 26 is also provided between the catalytic combustion zone 8 and the second inlet 7 of the heat exchanger. The temperature detection of the high-temperature gas after the catalysis and combustion inside the device is carried out.
  • the exhaust valve 26 is controlled to open, the temperature and pressure inside the regulating system are within a safe range, and the exhaust valve 26 is closed in other cases.
  • the feedback control technology of the temperature sensor, the electric heating component, and the electric control valve used in this embodiment are all conventional automatic detection and control technologies. Those skilled in the art can perform the related circuits and control programs according to the selected temperature sensor parameters. Design, this embodiment will not repeat it here.
  • the outer wall of the purification section box 3 is wrapped with a thermal insulation material 4, and the thermal insulation material 4 is made of high-quality aluminum silicate thermal insulation material to heat the inside of the purification section box to avoid heat loss inside the box and cause the external temperature of the box. Safety hazards caused by too high.
  • Both the desorption section box body 1 and the purification section box body 3 are equipped with installation, maintenance and inspection doors.
  • a number of adsorption material drawers 24 for filling adsorption materials are arranged inside the desorption section box 1, and all the adsorption material drawers 24 are stacked and fixed together and rotatably supported by the purification section box inlet 2 and the purification section through a rotating shaft 23.
  • the rotating shaft 23 is rotated in the vertical direction and assembled in the middle of the adsorption section box 3.
  • the bottom plate of the adsorption material drawer 24 has a mesh structure to facilitate the free flow of desorption gas through the inside of the drawer.
  • a transmission hole is provided in the center of the adsorbent drawer 24, such as a square hole with a non-circular structure.
  • All the adsorbent drawers 24 are sleeved on the rotating shaft 23 through the drive hole, and the axial support is realized by the step positioning structure on the drive shaft 23 For positioning, multiple sets of adsorption material drawers 24 are sleeved together on the drive shaft 23 to achieve unified stacking, which improves the space for placing adsorption materials.
  • the number of adsorption material drawers 24 can be determined according to the number of adsorption materials under specific working conditions.
  • the bottom of the rotating shaft 23 is in transmission connection with the rotating motor 22.
  • the rotating shaft 23 is driven by the rotating motor 22 to drive all the adsorbent drawers to rotate at a constant speed, so as to improve the uniformity of desorption of all adsorbent materials in the adsorbent drawer 24.
  • the desorption section box body 1 is detachably fixed to the purification section box body 3 through a flange structure.
  • a sealing ring is arranged between the desorption section box body 1 and the purification section box body 3 to ensure the air between the boxes.
  • the purification section box 3 is fixed on the bottom plate 15 with bottom wheels 16, and the entire system equipment can be moved and used.
  • the purification section box inlet 2 and the purification section box outlet 21 on the side of the purification section box 3 are exposed through the air inlet and outlet insulation hose 25 Connect the inlet 2 of the purification section box and the outlet 21 of the purification section box to the desorption system in the exhaust gas adsorption equipment respectively.
  • the adsorption material in the adsorption equipment can be directly desorbed and regenerated, and the corresponding adsorption The equipment needs to reserve a desorption import and export.

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Abstract

本发明公开了一种吸附材料脱附再生系统，包括一体连接的脱附段箱体和净化段箱体，所述脱附段箱体和净化段箱体之间通过净化段箱体入口和净化段箱体出口实现气流循环连通；所述脱附段箱体内部在净化段箱体入口和净化段箱体出口之间的通道内填装待脱附的吸附材料；所述净化段箱体设有换热器以及相互连通设置的催化燃烧区和加热区，形成脱附气体和催化燃烧高温气体之间的余热利用循环通路。本发明采用一体机设计，结构紧凑、净化效率高、能耗低、运行成本低，可广泛应用于各种吸附设备及吸附材料的脱附及净化，设备维护方便快捷，具有广泛的应用价值。

Description

一种吸附材料脱附再生系统 技术领域
本发明属于工业废气净化领域，具体涉及一种吸附材料脱附再生系统。
 背景技术
目前，汽车维修店的喷漆、烤漆废气常采用“活性炭吸附”、“光催化”或“低温等离子”等技术治理，但都存在一定缺陷。活性炭吸附法净化效率高，但活性炭吸附饱和后需更换，饱和的活性炭还要作为危险废弃物处置，为此，将产生较高的运行成本，或者配置脱附系统进行催化燃烧处理，对汽车维修店这种小规模的项目来说势必造成初期投资高的问题；光催化具有维护费用和能耗低的优点，但是净化效率非常有限，寿命较短；低温等离子对设备的安全性和操作要求较高，尤其是近期发生的几起爆炸事故，已经开始限制其使用，安全性令人堪忧。
中国专利CN206715653U公开了一种移动式VOCs废气脱附净化一体机，包括过滤器、脱附风机、换热器、催化氧化装置、排气筒、一体机壳体和移动本体，该系统处理能力有限、管路系统复杂、结构不够紧凑、占地面积较大。
中国专利CN108854448A公开了一种VOCs移动吸脱附-催化燃烧联动装置，具有吸脱附连续运行的特点，但是不能对单独的吸附设备进行脱附，且采用的环形多孔套管决定了只能针对特定的吸附剂种类，如球状或柱状，蜂窝状不适用。
 技术问题
本发明解决的技术问题是：针对采用吸附净化技术的汽车维修店等小型喷烤漆房提供一种吸附材料脱附再生系统，便于对更换下来的吸附材料进行统一脱附再生处理。
 技术解决方案
本发明采用如下技术方案实现。
一种吸附材料脱附再生系统，包括一体连接的脱附段箱体1和净化段箱体3，所述脱附段箱体1和净化段箱体3之间通过净化段箱体入口2和净化段箱体出口21实现气流循环连通。
所述脱附段箱体1内部在净化段箱体入口2和净化段箱体出口21之间的通道内填装待脱附的吸附材料。
所述净化段箱体3设有换热器6以及相互连通设置的催化燃烧区8和加热区12，所述换热器6内部包括相互换热的两组通道，外部设有分别对应连通两组通道的换热器第一入口5、换热器第一出口14、换热器第二入口7、换热器第二出口17，其中所述换热器第一入口5与净化段箱体入口2连通，所述换热器第一出口14与加热区12连通，所述换热器第二入口7与催化燃烧区8连通，所述换热器第二出口17与净化段箱体出口21连通，所述加热区12内设有加热部件，所述催化燃烧区8内部设有用于脱附气体催化燃烧的催化剂。
所述净化段箱体3内部还设有驱动气流循环的脱附风机20。
进一步的，所述脱附段箱体1内部设有若干用于填装吸附材料的吸附材料抽屉24，所有吸附材料抽屉24叠装固定在一起并通过旋转轴23旋转支撑于净化段箱体入口2和净化段箱体出口21之间的通道内，所述旋转轴23与旋转电机22传动连接，通过旋转电机驱动吸附材料抽屉转动，提高吸附材料脱附的均匀性。
进一步的，所述吸附材料抽屉24的中心设置与旋转轴23传动的装配孔，所有吸附材料抽屉24通过该装配孔套装支撑在旋转轴23上。
进一步的，所述净化段箱体3外壁包裹设有保温材料4，对净化段箱体内部进行保温，避免热量散失以及造成箱体外部温度过高导致的安全隐患。
进一步的，所述催化燃烧区8内设置若干填装催化剂的催化剂抽屉10，所述催化剂抽屉10通过隔板9固定在催化燃烧区8内。
进一步的，所述加热区12内部分布设置若干组加热管13，所述加热区12和催化燃烧区8之间设有第一温度传感器11，所述第一温度传感器11与加热管13的控制模块反馈连接，通过第一温度传感器的温度检测反馈，调整加热区内工作的加热管数量，对脱附气体进行精确的加热控制。
进一步的，所述净化段箱体3内部设有补冷风阀18，所述补冷风阀18并联连接在脱附风机20的进风端，并随脱附风机20一同设置在换热器第二出口17和净化段箱体出口21之间，所述换热器第二出口17设置有控制补冷风阀18开启和关闭的第二温度传感器19，补冷风阀同时作为整个系统的进风端，结合第二温度传感器的温度检测反馈，调整进入脱附段箱体内部的脱附气体温度。
进一步的，所述净化段箱体3上还设有排风阀26，所述排风阀26并联设置在催化燃烧区8和换热器第二入口7之间，所述催化燃烧区8和换热器第二入口7之间还设有控制排风阀26开启和关闭的第三温度传感器27，第三温度传感器对进入换热器内部的催还燃烧后的高温气体进行温度检测，并与排风阀联动，避免系统内部温度过高。
具体的，所述换热器6采用板式间壁式换热器或回字形间壁式换热器，内部通过换热板间隔成两组流通换热的通道。
在本发明的一种吸附材料脱附再生系统中，所述脱附段箱体1通过法兰结构可拆卸固定在净化段箱体3上，所述净化段箱体3固定在带有底轮16的底板15上，整个系统设备便于移动。
本发明针对没有配置脱附再生系统的简易脱附装置，对更换下来的吸附材料进行集中处理，可以集中对多套小型废气吸附设备进行统一脱附处理，解决整机单独配置脱附系统运行成本高的问题。本发明的脱附段箱体与净化段箱体之间可拆卸连接，也可以将整个净化段箱体直接对接到废气吸附设备上进行脱出处理。
 有益效果
本发明具有如下有益效果。
1)      灵活性和适用性强。本发明的脱附段箱体和净化段箱体可拆分，可针对预留脱附进出口的设备，或者吸附材料必须取出进行脱附再生的情况，均可适用，并且对应不同的吸附材料均可放置于吸附材料抽屉内进行脱附处理。
2)      脱附温度灵活可调。本发明通过多级温度传感器与阀门以及加热器反馈控制，可适用于不同脱附温度的吸附材料脱附再生。当温度传感器检测温度高于吸附材料所需脱附温度时，打开补冷风阀，将温度调至合适范围，再由换热器将调整换热的脱附气体送入脱附段箱体内，对吸附材料进行脱附，确保脱附的高效性和安全性。加热区的加热管开启与否、以及开启几组，均需根据温度传感器检测温度结果确定，若温度低于废气的起燃温度，则开启相应的加热管，对废气进行加热升温至起燃温度后停止加热，若废气温度达到起燃温度，则加热管不工作，温度控制更精确并节能。
3)      加热方式安全可靠。本发明采用电加热的方式，不仅加热较为均匀，且安全性较高。
4)      占地面积小。本发明采用一体式模块设计，无论是脱附段还是净化段都集成设置在箱体内，内部无复杂管路，结构紧凑，占地面积小，移动方便。
5)      余热充分利用。采用分区换热方式，余热充分利用，从而达到节能的效果。
由上所述，本发明公开的一种吸附材料脱附再生系统采用一体机可移动式设计，结构紧凑、净化效率高、能耗低、运行成本低，可广泛应用于各种吸附设备及吸附材料的脱附及净化，设备维护方便快捷，具有广泛的应用价值。
以下结合附图和具体实施方式对本发明做进一步说明。
 附图说明
图1为实施例中的吸附材料脱附再生系统的内部结构示意图。
图2为图1中的A向视图，主要为净化段上的入口和出口示意图。
图3a、3b为实施例中的换热器内部示意图。
图4为实施例中的吸附材料脱附再生系统连接外部废气吸附设备的工作示意图。
图中标号：1-脱附段箱体，2-净化段箱体入口，3-净化段箱体，4-保温材料，5-换热器第一入口，6-换热器，7-换热器第二入口，8-催化燃烧区，9-隔板，10-催化剂抽屉，11-第一温度传感器，12-加热区，13-加热管，14-换热器第一出口，15-底板，16-底轮，17-换热器第二出口，18-补冷风阀，19-第二温度传感器，20-脱附风机，21-净化段箱体出口，22-旋转电机，23-旋转轴，24-吸附材料抽屉，25-进出风保温软管，26-排风阀，27-第三温度传感器。
 本发明的实施方式
实施例。
参见图1，图示中的吸附材料脱附再生系统为本发明的具体实施方案，具体包括脱附段箱体1和净化段箱体3两大部分，其中，脱附段箱体1用于对吸附材料进行高温气体脱附处理，内部设置有用于装载待脱附的吸附材料抽屉24；净化箱体3对脱附后的气体进行余热回收利用并且进行催化燃烧处理，取出脱附后气体中的有害物质。脱附段箱体1和净化段箱体3之间通过净化段箱体入口2和净化段箱体出口21实现脱附气流的循环连通，其中净化段箱体入口2和净化段箱体出口21均设置在净化段箱体3上，结合图2所示，并且净化段箱体入口2和净化段箱体出口21分别位于脱附段箱体内部吸附材料抽屉24的上下两端，这样进入脱附段箱体1内部的脱附气体必定穿过吸附材料抽屉24并与内部填装的吸附材料充分接触实现脱附。
在净化段箱体3内设置有换热器6、催化燃烧区8和加热区12 ，换热器6、加热区12和催化燃烧区8依次连通，可以通过净化段箱体3内部设置的管路连通，也可以通过净化段箱体3内部设置的隔板形成的通路相互连通。其中换热器6内部设有相互换热的两组通道，分别设有进出两组通道的四个进出口，分别为：换热器第一入口5、换热器第一出口14、换热器第二入口7、换热器第二出口17，其中换热器第一入口5与净化段箱体入口2连通，用于向换热器内部通入脱附完成的废气，并利用换热器6对该部分废气进行初步换热升温，换热器第一出口14与加热区12连通，用于将换热后的脱附气体送到加热区12，通过加热区12内部的加热部件进行再次加热升温，使得脱附气体达到可以催化燃烧的温度后送入催化燃烧区8进行催化燃烧，换热器第二入口7与催化燃烧区8连通，将催化燃烧后的高温气体送入换热器6进行换热降温后，以达到用于脱附的温度重新形成干净的脱附气体，换热器第二出口17与净化段箱体出口21连通，将换热降温后的脱附气体送入脱附段箱体1内部进行吸附材料的循环连续脱附，形成图1中所示的“∞”形气流循环路线，利用催化燃烧后的高温气体和脱附后的低温气体在换热器进行换热，实现脱附过程中催化燃烧的余热回收利用。
本实施例在换热器第二出口17和净化段箱体出口21之间设置脱附风机20，通过脱附风机20提供气流的流动动力。同时，本实施例在净化段箱体3内部还设有补冷风阀18，利用补冷风阀18作为外部空气进入内部系统的进风端，补冷风阀18并联连接在脱附风机20的进风端，并随脱附风机20一同设置在换热器第二出口17和净化段箱体出口21之间。补冷风阀18采用电控阀门，换热器第二出口17处设置有控制补冷风阀18开启和关闭的第二温度传感器19，根据从换热器6内部输出到脱附段箱体内部的脱附气体的温度，调整进入脱附段箱体内部的冷空气，当进入脱附段箱体1内部的脱附气体温度超过脱附温度时，打开补冷风阀18通入新风以降低脱附气体的温度直至达到所需脱附温度后关闭补冷风阀18，其他情况下则关闭补冷风阀18。
参见图3a和3b，本实施例中的换热器6采用板式间壁式换热器或回字形间壁式换热器，内部通过换热板间隔成之字形或者回字形的流通换热通道。并且换热器6具备根据脱附所需温度需要关闭内部部分通道实现采取分区或全部换热方式的功能。同时，第二温度传感器19还与换热器6的功能切换控制单元反馈控制，由于不同吸附材料所需的脱附温度不同，如蜂窝活性炭的脱附温度一般是80-100℃，而分子筛转轮的脱附温度一般是200-220℃，催化燃烧出口温度一般高达400-500℃，因此将催化燃烧出口高温气体与脱附出口低温气体进行换热，可以达到余热的充分利用，通过第二温度传感器19对换热器出口17排出的脱附气体温度进行监控，满足不同吸附材料的脱附温度。当换热器第二出口17排出的脱附气体温度高于脱附所需温度，打开补冷风阀18，以达到所需温度为止；当所需脱附温度较高时，控制换热器6采用部分换热，将换热器部分通道关闭，当所需脱附温度低时，采取全换热器换热，进一步降低脱附气体换热后的温度。
催化燃烧区8内设置若干填装催化剂的催化剂抽屉10，催化剂抽屉10通过隔板9固定在催化燃烧区8内，催化剂抽屉10采用网板，脱附气体在达到催化温度后与催化剂抽屉10内部的催化剂发生催化燃烧反应，这里所指的催化燃烧并不是指的真正的燃烧，而是指脱附气体内部的有害物质在达到催化温度后与催化剂发生催化反应，形成无害的二氧化碳和水。
加热区12内部分布设置若干组加热管13，加热管13采用可以进行温度控制的电加热管，本实施例在加热区12和催化燃烧区8之间设有第一温度传感器11，检测从加热区12进入到催化燃烧区8的高温脱附气体温度，第一温度传感器11与加热管13的控制模块反馈连接，通过第一温度传感器的温度检测反馈，调整加热区内工作的加热管数量，当进入催化燃烧区8内部的脱附气体温度低于催化温度时，增加加热区12内部加热管的启动数量，当进入催化燃烧区8内部的脱附气体温度达到或超过催化温度时，减少加热区12内部加热管的启动数量，对脱附气体进行精确的加热控制。
净化段箱体3上还设有排风阀26，排风阀26并联设置在催化燃烧区8和换热器第二入口7之间，当系统内部气流温度过高或者通入的气体过多导致压力增大时进行排气。排风阀26采用电控阀门，催化燃烧区8和换热器第二入口7之间还设有控制排风阀26开启和关闭的第三温度传感器27，第三温度传感器27对进入换热器内部的催还燃烧后的高温气体进行温度检测，当催化燃烧后进入换热器的脱附气体温度超过安全阈值或者通过系统内部设置的压力传感单元检测到箱体内部的压力过高时，控制排风阀26打开，调节系统内部的温度和压力处于安全范围内，其他情况下排风阀26关闭。
本实施例中采用的温度传感器与电加热部件以及电控阀门的反馈控制技术均为常规的自动检测控制技术，本领域技术人员可以根据所选用的温度传感器参数对所涉及的电路以及控制程序进行设计，本实施例在此不对其进行赘述。
本实施例中的净化段箱体3外壁包裹设有保温材料4，保温材料4采用优质硅酸铝保温材料，对净化段箱体内部进行保温，避免箱体内部热量散失以及造成箱体外部温度过高导致的安全隐患。脱附段箱体1和净化段箱体3上均设有安装维护检修门。
在脱附段箱体1内部设有若干用于填装吸附材料的吸附材料抽屉24，所有吸附材料抽屉24叠装固定在一起并通过旋转轴23旋转支撑于净化段箱体入口2和净化段箱体出口21之间的通道内，旋转轴23沿竖直方向旋转装配在吸附段箱体3的中间，吸附材料抽屉24的底板具有网孔结构，便于脱附气体自由流通穿过抽屉内部，在吸附材料抽屉24的中心位置设置传动孔，例如非圆结构的方形孔，所有的吸附材料抽屉24均通过传动孔套装在旋转轴23上，通过传动轴23上的台阶定位结构实现轴向支撑定位，多组吸附材料抽屉24一同套装在传动轴23上实现统一叠放，提升放置吸附材料的空间，吸附材料抽屉24数量可以根据具体工况的吸附材料数量确定。旋转轴23的底部与旋转电机22传动连接，通过旋转电机22驱动旋转轴23带动所有的吸附材料抽屉定速旋转，提高吸附材料抽屉24内部所有吸附材料脱附的均匀性。
本实施例中的脱附段箱体1通过法兰结构可拆卸固定在净化段箱体3上，脱附段箱体1和净化段箱体3之间设置密封圈保证箱体之间的气密性，净化段箱体3固定在带有底轮16的底板15上，整个系统设备可以移动使用。通过将脱附段箱体1从净化段箱体3上拆卸下来后，净化段箱体3侧面上的净化段箱体入口2和净化段箱体出口21暴露出来，通过进出风保温软管25将净化段箱体入口2和净化段箱体出口21分别与废气吸附设备中脱附系统对接，如图4所示，可以直接对可对吸附设备内的吸附材料进行脱附再生，对应的吸附设备需要预留了脱附进出口。
以上仅为本发明具体实施案例说明，不能以此限定本发明的权利保护范围。凡根据本发明申请权利要求书及说明书内容所作的等效变化与修改，皆在本发明保护的范围内。

Claims (10)

  1. 一种吸附材料脱附再生系统，其特征在于：包括一体连接的脱附段箱体（1）和净化段箱体（3），所述脱附段箱体（1）和净化段箱体（3）之间通过净化段箱体入口（2）和净化段箱体出口（21）实现气流循环连通；
    所述脱附段箱体（1）内部在净化段箱体入口（2）和净化段箱体出口（21）之间的通道内填装待脱附的吸附材料；
    所述净化段箱体（3）设有换热器（6）以及相互连通设置的催化燃烧区（8）和加热区（12），所述换热器（6）内部包括相互换热的两组通道，外部设有分别对应连通两组通道的换热器第一入口（5）、换热器第一出口（14）、换热器第二入口（7）、换热器第二出口（17），其中所述换热器第一入口（5）与净化段箱体入口（2）连通，所述换热器第一出口（14）与加热区（12）连通，所述换热器第二入口（7）与催化燃烧区（8）连通，所述换热器第二出口（17）与净化段箱体出口（21）连通，所述加热区（12）内设有加热部件，所述催化燃烧区（8）内部设有用于脱附气体催化燃烧的催化剂；
    所述净化段箱体（3）内部还设有驱动气流循环的脱附风机（20）。
  2. 根据权利要求1所述的一种吸附材料脱附再生系统，所述脱附段箱体（1）内部设有若干用于填装吸附材料的吸附材料抽屉（24），所有吸附材料抽屉（24）叠装固定在一起并通过旋转轴（23）旋转支撑于净化段箱体入口（2）和净化段箱体出口（21）之间的通道内，所述旋转轴（23）与旋转电机（22）传动连接。
  3. 根据权利要求2所述的一种吸附材料脱附再生系统，所述吸附材料抽屉（24）的中心设置与旋转轴（23）传动的装配孔，所有吸附材料抽屉（24）通过该装配孔套装支撑在旋转轴（23）上。
  4. 根据权利要求1所述的一种吸附材料脱附再生系统，所述净化段箱体（3）外壁包裹设有保温材料（4）。
  5. 根据权利要求4所述的一种吸附材料脱附再生系统，所述催化燃烧区（8）内设置若干填装催化剂的催化剂抽屉（10），所述催化剂抽屉（10）通过隔板（9）固定在催化燃烧区（8）内。
  6. 根据权利要求4所述的一种吸附材料脱附再生系统，所述加热区（12）内部分布设置若干组加热管（13），所述加热区（12）和催化燃烧区（8）之间设有第一温度传感器（11），所述第一温度传感器（11）与加热管（13）的控制模块反馈连接。
  7. 根据权利要求1所述的一种吸附材料脱附再生系统，所述净化段箱体（3）内部设有补冷风阀（18），所述补冷风阀（18）并联连接在脱附风机（20）的进风端，并随脱附风机（20）一同设置在换热器第二出口（17）和净化段箱体出口（21）之间，所述换热器第二出口（17）设置有控制补冷风阀（18）开启和关闭的第二温度传感器（19）。
  8. 根据权利要求7所述的一种吸附材料脱附再生系统，所述净化段箱体（3）上还设有排风阀（26），所述排风阀（26）并联设置在催化燃烧区（8）和换热器第二入口（7）之间，所述催化燃烧区（8）和换热器第二入口（7）之间还设有控制排风阀（26）开启和关闭的第三温度传感器（27）。
  9. 根据权利要求1所述的一种吸附材料脱附再生系统，所述换热器（6）采用板式间壁式换热器或回字形间壁式换热器。
  10. 根据权利要求1-9中任一项所述的一种吸附材料脱附再生系统，所述脱附段箱体（1）通过法兰结构可拆卸固定在净化段箱体（3）上，所述净化段箱体（3）固定在带有底轮（16）的底板（15）上。
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