CN108704442A - A kind of purifier and its purification method - Google Patents

A kind of purifier and its purification method Download PDF

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Publication number
CN108704442A
CN108704442A CN201810732485.1A CN201810732485A CN108704442A CN 108704442 A CN108704442 A CN 108704442A CN 201810732485 A CN201810732485 A CN 201810732485A CN 108704442 A CN108704442 A CN 108704442A
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China
Prior art keywords
gas
clean
heat exchanger
outlet
desorption
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CN201810732485.1A
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Chinese (zh)
Inventor
岳仁亮
齐丛亮
吴傲立
王彬彬
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JIANGSU ZHONGKE RUISAI POLLUTION CONTROL ENGINEERING Co.,Ltd.
Institute of Process Engineering of CAS
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JIANGSU ZHONGKE RUISAI POLLUTION CONTROL ENGINEERING Co Ltd
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Priority to CN201810732485.1A priority Critical patent/CN108704442A/en
Publication of CN108704442A publication Critical patent/CN108704442A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/02Separation 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
    • B01D53/04Separation 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 stationary adsorbents
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/06Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
    • F23G7/07Incinerators 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2257/00Components to be removed
    • B01D2257/70Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
    • B01D2257/708Volatile organic compounds V.O.C.'s
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2259/00Type of treatment
    • B01D2259/40Further details for adsorption processes and devices
    • B01D2259/40083Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
    • B01D2259/40088Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
    • B01D2259/4009Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating using hot gas
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Abstract

The invention discloses a kind of purifier and its purification methods, belong to technical field of air purification.Purifier of the present invention includes clean room, heat exchanger and catalytic combustor, gas import to be clean to be opened/closed respectively, clean gas outlet, desorption gas import and the outlet of desorption gas are provided in clean room, adsorption module is provided in clean room, adsorption module is used to adsorb the VOC in gas to be clean;Heat exchanger includes the first heat exchanger tube and the second heat exchanger tube, and heat exchange can be carried out between the first heat exchanger tube and the second heat exchanger tube, and the outlet of desorption gas can be connected to the first import of the first heat exchanger tube by the first connecting pipeline;Catalytic combustor is used to carry out catalysis burning, the first outlet of the first heat exchanger tube and the second inlet communication of catalytic combustor, the third inlet communication of the second outlet of catalytic combustor and the second heat exchanger tube to entering the gas in it.Purifier provided by the invention and purification method energy utilization are more abundant, low energy consumption, more energy efficient environmental protection.

Description

A kind of purifier and its purification method
Technical field
The present invention relates to technical field of air purification more particularly to a kind of purifier and its purification methods.
Background technology
As people's quality of life is become better and better, people are higher and higher to living environment requirement, and people gradually pay close attention to air Quality, indoor pollution also increasingly attract much attention.(volatile organic compounds, volatility are organic by VOC Compound) pollutant as room air, harm be it is very outstanding, to human body there is also certain harm with it is undesirable It influences.When the VOC in room is more than a certain concentration, people can feel headache, Nausea and vomiting, limbs fatigue in a short time. If left scene not in time, it can feel the above symptom aggravation, can twitch, go into a coma when serious, lead to failure of memory.
Indoor VOC essentially from combustion products, smoking, heating and the cookings such as coal-fired and natural gas etc. smog, building and The discharge etc. of ornament materials, furniture, household electrical appliance, detergent and human body itself.
Technology is polluted about indoor VOC at present, it is net to common are activated carbon adsorption method, photocatalysis technology, plasma Change technology, catalytic combustion technology.Wherein:The widely used active carbon adsorption of activated-charcoal purifier does not decompose organic dirt in fact Object is contaminated, only pollutant phase inversion is adsorbed, there are problems that adsorption saturation in operation, needs ceaselessly to replace in actual use.Light Catalysis technique, plasma for purification technology are currently used primarily in indoor disinfection, also to be studied to the purification of VOC, purification effect Fruit need to be investigated.
Adsorption desorption-catalytic combustion technology is typically using sorbing material come the lower content in absorbing and storing exhaust gas to be clean VOC;Then the VOC in sorbing material is desorbed using high-temperature steam, so that the VOC that storage concentrates is released, after desorption VOC enters catalytic combustor and carries out catalysis burning, is emitted into air after generating carbon dioxide and water.
But the technology deposits following problem in the application:
1) it, needs to use steam desorption manipulation, haves the shortcomings that energy consumption is high, use cost is high.
2), on adsorption desorption material, using integral honeycomb filled-type sorbing material, particles filled type sorbing material etc. these As adsorption desorption material, these filled-type sorbing materials exist to adsorption gas flow and desorption air-flow traditional filled-type sorbing material The larger defect of resistance, further increase enforcement difficulty, increase energy consumption;For example, wherein integral honeycomb type sorbing material Internal structure is slender type microcellular structure, haves the characteristics that hole gap is small, time of contact is long, resistance is big in use;Particle Type sorbing material structure is subtle, haves the shortcomings that filling gap is small, resistance is larger.
If 3), equipment breaks down, leading to VOC excessive concentrations, either oxygen concentration is low to cause to explode or fire The danger such as insufficient generation carbon monoxide are burnt, the safety of equipment operation is low.
4), just because of the defects such as its above-mentioned high energy consumption, safety be low, the application of the technology is limited, the technology is current It is mainly used for industrial waste gas VOC purifications and is dfficult to apply to indoor environment.
Invention content
It is an object of the invention to propose a kind of to efficiently use energy, the purifier that low energy consumption and purification method.
In order to achieve the above object, on the one hand, the present invention uses following technical scheme:
A kind of purifier, including:
Clean room, be provided in the clean room gas import to be clean to be opened/closed respectively, clean gas outlet, desorption gas into Mouth and desorption gas export, and adsorption module are provided in the clean room, the adsorption module is for adsorbing in gas to be clean VOC;
Heat exchanger, the heat exchanger include the first heat exchanger tube and the second heat exchanger tube, first heat exchanger tube and described second Heat exchange can be carried out between heat exchanger tube, desorption gas outlet and the first import of first heat exchanger tube can pass through first Connecting pipeline is connected to;
Catalytic combustor, the catalytic combustor are used to carry out catalysis burning to entering the gas in it, and described first changes Second inlet communication of the first outlet of heat pipe and the catalytic combustor, the second outlet of the catalytic combustor and described the The third inlet communication of two heat exchanger tubes.
Further, the third outlet of second heat exchanger tube is connected by the second connecting pipeline and the desorption gas import It is logical.
Further, it is provided with gas supplementing opening to be opened/closed on first connecting pipeline, benefit is provided at the gas supplementing opening Gas wind turbine.
Further, emergent exhaust outlet to be opened/closed, the emergent exhaust ports are provided on first connecting pipeline It is provided with emergent air exhauster.
Further, the first straight line residing for the gas import to be clean and the clean gas outlet and the desorption gas into Second straight line residing for mouth and desorption gas outlet intersects.
Further, the adsorption module includes porous metals shell and the fibers adsorption that is set in the porous metals shell Material.
Further, the porous metals shell includes annular sidewall, and one end of the annular sidewall is in open end, the other end It is provided with bottom and forms blind end, cavity is provided in the annular sidewall, the fiber adsorbing material is set to the sky Intracavitary, is provided with support ring between the outer wall of the open end and the inner wall of combustion chamber, the support ring divides the clean room It is divided into the first chamber and the second chamber, the blind end is located at second intracavitary, the gas import to be clean, the desorption gas import It is set on the side wall of second chamber, desorption gas outlet is set to the side wall of first chamber with the clean gas outlet On.
Further, the 4th import of first connecting pipeline exports close to the desorption gas and is arranged, and described first There is gap between 4th import of connecting pipeline and desorption gas outlet.
On the other hand, the present invention uses following technical scheme:
A kind of purification method based on purifier described in any one of the above embodiments, includes the following steps:
Open gas import to be clean and clean gas outlet, close desorption gas import and the outlet of desorption gas, gas to be clean from The gas import to be clean enters the clean room, is discharged from the clean gas outlet after the adsorption module adsorbs VOC;
It closes gas import to be clean and clean gas outlet, opens desorption gas import and the outlet of desorption gas, desorption gas is from described Gas import is desorbed and enters the clean room, be desorbed after the VOC in the adsorption module exported successively through the desorption gas, described the Enter the catalytic combustor behind a connecting pipe road, VOC burnings generate flue gas, and the flue gas is through described in the catalytic combustor Second outlet be discharged into second heat exchanger tube and in first heat exchanger tube desorption gas and VOC exchange heat.
Further, after the desorption gas in the flue gas and first heat exchanger tube and VOC exchange heat, the catalysis is closed The heater of combustion chamber.
Beneficial effects of the present invention are as follows:
Purifier provided by the invention and purification method enter catalytic combustor, VOC burnings after the attached VOC of qi exhaustion is desorbed Generate flue gas and simultaneously discharge heat, the flue gas can in the first heat exchanger tube the desorption gas that will enter catalytic combustor burning and VOC exchanges heat, and to reduce the heats required in subsequent combustion of the VOC in the first heat exchanger tube, energy utilization is more abundant, energy Consume low, more energy efficient environmental protection, more conducively in the industry with promoted the use of in indoor environment.
Description of the drawings
Fig. 1 is the structural schematic diagram for the purifier that the specific embodiment of the invention provides.
In figure:
1, catalytic combustor;2, clean room;3, adsorption module;4, heat exchanger;5, the first connecting pipeline;6, the second communicating pipe Road;7, gap;8, gas supplementing opening;9, tonifying Qi wind turbine;10, emergent exhaust outlet;11, emergent air exhauster;12, support ring;13, it keeps the temperature Layer;14, uniform device;15, exhaust pipe;16, air exhauster;21, gas import to be clean;22, clean gas outlet;23, desorption gas into Mouthful;24, desorption gas outlet;21', gas inlet valve to be clean;22', clean gas outlet valve;23', desorption gas inlet valve;24', it is de- Attached gas outlet valve;25, the first chamber;26, the second chamber;31, porous metals shell;32, fiber adsorbing material;310, bottom;41, first Import;42, first outlet;43, third import;44, third exports;51, the 4th import.
Specific implementation mode
Technical solution to further illustrate the present invention below with reference to the accompanying drawings and specific embodiments.
It should be noted that in the description of invention, term " first ", " second ", " third ", " the 4th " are only used for describing Purpose, and should not be understood as indicating or implying relative importance, it can not be construed as to imply that quantity.
The specific embodiment of the invention provides a kind of purifier, preferably but be not limited to room air (such as containing Soot gas, containing dusty gas etc.) purifier.As shown in Figure 1, purifier provided by the invention includes clean room 2, changes Hot device 4 and catalytic combustor 1.
Cleaning module 3 is provided in clean room 2, cleaning module 3 is used to adsorb the VOC in gas to be clean.It is set in clean room 2 It is equipped with gas import 21 to be clean, clean gas outlet 22, desorption gas import 23 and desorption gas outlet 24, it is gas import 21 to be clean, net Change and be respectively arranged with valve at gas outlet 22, desorption gas import 23 and desorption gas outlet 24, specifically, is set at gas import 21 to be clean It is equipped with gas inlet valve 21&apos to be clean;, be provided with clean gas outlet valve 22&apos at clean gas outlet 22;, be arranged at desorption gas import 23 There is desorption gas inlet valve 23', be provided with desorption gas outlet valve 24&apos at desorption gas outlet 24;, with open or close gas to be clean into Mouth 21, clean gas outlet 22, desorption gas import 23 or desorption gas outlet 24.Clean gas outlet preferably but is not limited to and exhaust pipe 15 are connected to, and air exhauster 16 is preferably provided on exhaust pipe 15.
Heat exchanger 4 includes that the first heat exchanger tube and the second heat exchanger tube (illustrate only the first heat exchanger tube and the second heat exchanger tube in Fig. 1 Port), can carry out heat exchange between the first heat exchanger tube and the second heat exchanger tube, the of the outlet 24 of desorption gas and the first heat exchanger tube One import 41 can be connected to by the first connecting pipeline 5, in the first connecting pipeline 5 preferably but be not limited to be provided with ventilating fan (not shown).
Catalytic combustor 1 is used to carry out catalysis burning to entering the gas in it, so that VOC can be converted to dioxy Change carbon and water, the first outlet 42 of the first heat exchanger tube and the second inlet communication of catalytic combustor 1, the second of catalytic combustor 1 Outlet is connected to the third import 43 of the second heat exchanger tube.Having heaters is set in catalytic combustor 1 and VOC burnings can be catalyzed Catalyst.The type of catalyst can be selected according to specific VOC to be processed, can be catalyzed VOC and be burnt.Catalysis The outside of combustion chamber 1 is preferred but is not limited to be provided with insulating layer 13.Second entrance of catalytic combustor 1 is preferred but does not limit to To be provided with uniform device 14, uniform device 14 is preferably porous plate, so that air-flow is evenly.
The purification method of purifier provided in this embodiment is as follows:Open gas import 21 to be clean and clean gas outlet 22, desorption gas import 23 and desorption gas outlet 24 are closed, gas to be clean enters clean room 2 from gas import 21 to be clean, passes through Cleaning module 3 is discharged after adsorbing VOC from clean gas outlet 22;Gas import 21 to be clean and clean gas outlet 22 are closed, is opened de- Attached gas import 23 and desorption gas outlet 24, desorption gas enter clean room 2, the attached cleaning module of desorption qi exhaustion 3 from desorption gas import 23 In VOC after successively through desorption gas export the 24, first connecting pipeline 5 after enter catalytic combustor 1, VOC burning generate flue gas, cigarette Second outlet of the gas through catalytic combustor 1 be discharged into the second heat exchanger tube and in the first heat exchanger tube desorption gas and VOC exchange heat.
It is desorbed after qi exhaustion attached VOC and enters catalytic combustor 1, VOC burnings generate flue gas and simultaneously discharge heat, which can be with the The desorption gas and VOC that will enter in one heat exchanger tube, catalytic combustor 1 burnt exchange heat, to reduce in the first heat exchanger tube The VOC heats required in subsequent combustion.Such as it after desorption gas in flue gas and the first heat exchanger tube and VOC heat exchange, closes The heater of catalytic combustor 1 or the power for reducing by 1 heater of catalytic combustor, VOC in the first heat exchanger tube using its from The heat that body is obtained burns, and takes full advantage of energy, reduces energy consumption, more energy efficient environmental protection, more conducively in the industry and room It is promoted the use of in interior environment.
Still there is more energy after flue gas heat exchange in second heat exchanger tube, thus, in the present embodiment, by the second heat exchanger tube Third outlet 44 by the second connecting pipeline 6 with desorption gas entrance 23 be connected to, using the flue gas of high temperature as be desorbed gas with into One step improves desorption effect.It is preferably provided with air exhauster 16 on second connecting pipeline 6.
4th import 51 of the first connecting pipeline 5 is preferably arranged close to desorption gas outlet 24, and the first connecting pipeline 5 There is gap 7 between 4th import 51 and desorption gas outlet 24.It, can be by closing the after multiple desorption reaches discharge standard The mode of the valve at the 4th import 51 of wind turbine or closing in a connecting pipe road 5 so that desorption gas is directly discharged from the gap 7 Into external environment.It should be noted that can also be connected in other embodiments with desorption gas outlet 24 by being additionally arranged Pipeline realize the final discharge of desorption gas;Or the discharge of the exhaust outlet to be opened/closed by being set on the first connecting pipeline 5; Again alternatively, can also be discharged by above-mentioned clean gas outlet 22.
In order to avoid VOC constantly burns oxygen consumption and leads to anoxic in catalytic combustor 1 and then leads to insufficient generation of burning Carbon monoxide causes danger, and in the present embodiment, gas supplementing opening 8 is arranged on the first connecting pipeline 5, can be realized by the way that valve is arranged Open or close gas supplementing opening 8, setting tonifying Qi wind turbine 9 at gas supplementing opening 8.Tonifying Qi wind turbine 9 to first can be utilized by artificial timing Air is filled into pipeline, and controller and the first detector can also be set, and the first detector is for detecting in catalytic combustor 1 Oxygen concentration, when oxygen concentration of the controller in catalytic combustor 1 is less than certain value, the 9 work tonifying Qi of control tonifying Qi wind turbine;It is being catalyzed When oxygen concentration in combustion chamber 1 is higher than certain value, tonifying Qi wind turbine 9 and gas supplementing opening 8 are closed.In addition, just having started in desorption process When, air can be filled by the gas supplementing opening 8, air enters after catalytic combustor 1 burns to be passed through as elevated temperature desorption gas Gas import 23 is desorbed and enters clean room 2, to ensure that catalysis burning is that have enough oxygen in 1, improves the purifier and purification Safety of the method in industry and indoor application,.
When catalytic burner breaks down, desorption gas is still constantly ceaselessly to be taken off to the VOC in adsorption tube It is attached, and then the VOC concentration in the first connecting pipeline 5 is caused to be continuously improved, when concentration reaches certain value, it is easy to reach explosion pole Limit, there are the risks of equipment burnout.In order to avoid above-mentioned risk, improves the purifier and purification method and answered in industry and interior Safety in, can be with as shown in Figure 1, be provided with emergent exhaust outlet 10 on the first connecting pipeline 5, at exhaust outlet 10 of meeting an urgent need It realizes and can be opened and closed by the way that valve is arranged, emergent air exhauster 11 is provided at emergent exhaust outlet 10.It breaks down in catalytic burner When, open meet an urgent need exhaust outlet 10 and emergent air exhauster 11.Emergent exhaust outlet 10 and emergent air exhauster 11 can lead to Cross following manner opening:First, can be opened manually when finding failure;Second is that the second detection of device connection is set and controlled Device, when the VOC concentration during the second detector detects the first connecting pipeline 5 is higher than preset value, the emergent exhaust of controller control Mouth 10 and emergent air exhauster 11 are opened.
The structure of cleaning module 3 is unlimited, can adsorb the VOC in gas to be clean, and cleaning module 3 wraps in the present embodiment The fiber adsorbing material 32 for including porous metals shell 31 and being set in porous metals shell 31.Fiber adsorbing material 32 includes molecule At least one of sieve, activated carbon, zeolite and silica gel.Fiber adsorbing material 32 is small to the resistance of air-flow, more conducively the stream of gas It is dynamic, so that the operation of equipment is more unobstructed, energy consumption also smaller.In order to make the effect adsorbed and be desorbed more preferable, wait for net Change the first straight line residing for gas import 21 and clean gas outlet 22 and second residing for desorption gas import 23 and desorption gas outlet 24 Straight line intersection.It is highly preferred that porous metals shell 31 includes annular sidewall, one end of annular sidewall is arranged in open end, the other end There is bottom 310 to form blind end, preferably but is not limited to connect by welding manner between annular sidewall and bottom 310;Ring Cavity is provided in shape side wall, fiber adsorbing material 32 is set in cavity, between the outer wall of open end and the inner wall of combustion chamber It is provided with support ring 12, support ring 12 preferably but is not limited to be made of metal material, and clean room 2 is separated into the by support ring 12 One chamber 25 and the second chamber 26, blind end are located in the second chamber 26, and gas import 21 to be clean, desorption gas import 23 are set to the second chamber On 26 side wall, desorption gas outlet 24 and clean gas outlet 22 are set on the side wall of the first chamber 25.Aperture on annular sidewall It is preferred that but be not limited to 1-10 μm, the thickness of cavity preferably but is not limited to 1-10cm.
In adsorption process, air to be clean enters the second chamber 26 from gas import 21 to be clean, due to one end of annular sidewall For blind end, device to be clean has to pass through annular sidewall and the ability after the fiber adsorbing material 32 in annular sidewall adsorbs VOC The first chamber 25 can be entered and clean room 2 is discharged by clean gas outlet 22, ensure that gas to be clean can fully and sorbing material Contact, adsorption effect are good;And in desorption process, desorption gas enters the first chamber 25 from desorption gas import 23, it is also necessary to pass through annular It could enter the second chamber 26 after the VOC that side wall and the fiber adsorbing material 32 being desorbed in it adsorb and export 24 rows by the way that gas is desorbed Go out, ensure that gas to be clean can be contacted fully with sorbing material, desorption effect is good.
Purifier provided in this embodiment and purification method are introduced below in conjunction with specific experiment:
Using the above-mentioned purifier with 26 structure of the first chamber 25 and the second chamber, wherein the material of porous metals shell 31 It is stainless steel, aperture 0.01cm, fiber adsorbing material 32 is molecular sieve, and the thickness of molecular sieve is 10cm in annular sidewall.
Adsorption process:Room temperature, the VOC ingredients in air to be clean are ethyl alcohol, and the processing tolerance of air to be clean is 500m3/h.A concentration of 10mg/m of wherein VOC3When, adsorption efficiency reaches 99%;A concentration of 20mg/m of VOC3When, adsorption efficiency is 98%;A concentration of 100mg/m of VOC3When, adsorption efficiency 95%.
Gas-flow resistance test has been carried out to cleaning module 3, the results are shown in Table 1.
Table 1
Handle tolerance (m3/h) Gas-flow resistance size (Pa)
100 50
150 70
200 110
250 200
500 350
As can be seen from Table 1:(it is not higher than 250m in reduction process tolerance3/ h) under, gas-flow resistance linearly increases substantially, But more than 250m3/ h, air resistance growth rate have the tendency that rise.
Desorption process:Table 2 is the experiment condition and experimental data of desorption process.
Table 2
From table 2 it can be seen that (being not higher than 75m in relatively low desorption tolerance3/ h) under, base between tolerance and desorption resistance is desorbed This is in a linear relationship, and with the increase of desorption tolerance, desorption time is also shorter and shorter.
Experiment 2:
Using the above-mentioned purifier with 26 structure of the first chamber 25 and the second chamber, wherein the material of porous metals shell 31 It is irony, aperture 0.1cm, fiber adsorbing material 32 is activated carbon, and the thickness of activated carbon is 5cm in annular sidewall.
Adsorption process:Room temperature, the VOC ingredients in air to be clean are toluene, and processing tolerance is 200m3/h.When VOC concentration For 10mg/m3, adsorption efficiency reaches 99%;A concentration of 20mg/m of VOC3When, adsorption efficiency 97%;A concentration of 100mg/ of VOC m3, adsorption efficiency 93%.
Gas-flow resistance test has been carried out to cleaning module 3, the results are shown in Table 3.
Table 3
Handle tolerance (m3/h) Gas-flow resistance size (Pa)
100 25
150 35
200 70
250 100
500 180
From table 3 it can be seen that (being not higher than 250m in reduction process tolerance3/ h) under, the substantially linear growth of gas-flow resistance, But more than processing tolerance 250m3/ h, air resistance growth rate have the tendency that rise.
Desorption process:Table 4 is the experiment condition and experimental data of desorption process.
Table 4
From table 4, it can be seen that (being not higher than 75m in relatively low desorption tolerance3/ h) under, base between tolerance and desorption resistance is desorbed This is in a linear relationship, and with the increase of desorption tolerance, desorption time is also shorter and shorter.
From experiment 1 and experiment 2, it can be seen that the VOC good purifications of purifier provided by the invention, purification speed Soon.
The technical principle of the present invention is described above in association with specific embodiment.These descriptions are intended merely to explain the present invention's Principle, and it cannot be construed to limiting the scope of the invention in any way.Based on the explanation herein, the technology of this field Personnel would not require any inventive effort the other specific implementation modes that can associate the present invention, these modes are fallen within Within protection scope of the present invention.

Claims (10)

1. a kind of purifier, which is characterized in that including:
Clean room, be provided in the clean room gas import to be clean to be opened/closed respectively, clean gas outlet, desorption gas import and Gas outlet is desorbed, adsorption module is provided in the clean room, the adsorption module is used to adsorb the VOC in gas to be clean;
Heat exchanger, the heat exchanger include the first heat exchanger tube and the second heat exchanger tube, and first heat exchanger tube and described second exchange heat Heat exchange can be carried out between pipe, the desorption gas outlet can be connected to the first import of first heat exchanger tube by first Pipeline connection;
Catalytic combustor, the catalytic combustor are used to carry out catalysis burning, first heat exchanger tube to entering the gas in it First outlet and the catalytic combustor the second inlet communication, the second outlet of the catalytic combustor changes with described second The third inlet communication of heat pipe.
2. purifier according to claim 1, which is characterized in that the third outlet of second heat exchanger tube passes through second Connecting pipeline and the desorption gas inlet communication.
3. purifier according to claim 1, which is characterized in that be provided on first connecting pipeline to be opened/closed Gas supplementing opening is provided with tonifying Qi wind turbine at the gas supplementing opening.
4. purifier according to claim 1, which is characterized in that be provided on first connecting pipeline to be opened/closed Emergent exhaust outlet, the emergent exhaust ports are provided with emergent air exhauster.
5. purifier according to any one of claims 1 to 4, which is characterized in that
First straight line residing for the gas import to be clean and the clean gas outlet and the desorption gas import and the desorption The residing second straight line intersection in gas outlet.
6. purifier according to claim 5, which is characterized in that the adsorption module includes porous metals shell and setting Fiber adsorbing material in the porous metals shell.
7. purifier according to claim 6, which is characterized in that
The porous metals shell includes annular sidewall, one end of the annular sidewall open end, the other end be provided with bottom and Blind end is formed, cavity is provided in the annular sidewall, the fiber adsorbing material is arranged in the cavity, the opening Support ring is provided between the outer wall at end and the inner wall of combustion chamber, the clean room is separated into the first chamber and by the support ring Two chambers, the blind end are located at second intracavitary, and the gas import to be clean, the desorption gas import are set to described second On the side wall of chamber, the desorption gas outlet and the clean gas outlet are set on the side wall of first chamber.
8. purifier according to any one of claims 1 to 4, which is characterized in that
4th import of first connecting pipeline is exported close to the desorption gas to be arranged, and the 4th of first connecting pipeline There is gap between import and desorption gas outlet.
9. a kind of purification method based on such as claim 1 to 8 any one of them purifier, which is characterized in that including such as Lower step:
It opens gas import to be clean and clean gas outlet, closes desorption gas import and the outlet of desorption gas, gas to be clean is from described Gas import to be clean enters the clean room, is discharged from the clean gas outlet after the adsorption module adsorbs VOC;
Gas import to be clean and clean gas outlet, opening desorption gas import and the outlet of desorption gas are closed, gas is desorbed from the desorption Gas import enters the clean room, is desorbed after the VOC in the adsorption module and connects successively through desorption gas outlet, described first Behind siphunculus road enter the catalytic combustor, VOC burning generate flue gas, the flue gas through the catalytic combustor described second Outlet be discharged into second heat exchanger tube and in first heat exchanger tube desorption gas and VOC exchange heat.
10. purification method according to claim 9, which is characterized in that in the flue gas and first heat exchanger tube After gas and VOC heat exchange is desorbed, the heater of the catalytic combustor is closed.
CN201810732485.1A 2018-07-05 2018-07-05 A kind of purifier and its purification method Pending CN108704442A (en)

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CN110694602A (en) * 2019-10-25 2020-01-17 航天凯天环保科技股份有限公司 Adsorbing material desorption regeneration system
CN112827315A (en) * 2020-12-24 2021-05-25 安徽同益净化科技有限公司 VOCs exhaust-gas treatment equipment

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CN2905193Y (en) * 2006-05-24 2007-05-30 北京绿创大气环保工程有限责任公司 An organic waste gas purifier
CN101474521A (en) * 2008-12-30 2009-07-08 中国科学院长春应用化学研究所 Indoor air purification method
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Publication number Priority date Publication date Assignee Title
CN110694602A (en) * 2019-10-25 2020-01-17 航天凯天环保科技股份有限公司 Adsorbing material desorption regeneration system
CN112827315A (en) * 2020-12-24 2021-05-25 安徽同益净化科技有限公司 VOCs exhaust-gas treatment equipment

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Application publication date: 20181026