CN109894000A - Two waveband UV photodissociation aoxidizes intelligent circulation and controls composite exhaust gas processing system - Google Patents
Two waveband UV photodissociation aoxidizes intelligent circulation and controls composite exhaust gas processing system Download PDFInfo
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- CN109894000A CN109894000A CN201910320983.XA CN201910320983A CN109894000A CN 109894000 A CN109894000 A CN 109894000A CN 201910320983 A CN201910320983 A CN 201910320983A CN 109894000 A CN109894000 A CN 109894000A
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Abstract
The invention proposes a kind of two waveband UV photodissociation oxidation intelligent circulation to control composite exhaust gas processing system, belongs to environmental technology field.For the different characteristics that UV-C and UV-D manages harmful components photolysis mechanism and ozone generator, reasonably optimizing layout and configuration are carried out, using a variety of composite means such as filtering, absorption, photodissociation, oxidation, catalysis, the circulating treatment procedure of intelligent control exhaust gas.Under the premise of guaranteeing exhaust-gas treatment speed, operation quantity, its balanced runing time of UV lamp pipe group are reduced to the greatest extent, and the Harmful ingredient content and ozone content that make to discharge in exhaust gas are maintained in reasonable threshold range.The processing speed, efficiency and effect of system are effectively improved, maintenance workload and operating cost is reduced, extends the service life of system components.Meanwhile also having many advantages, such as that structure is simple, cost is relatively low, reliable for operation, convenient for installation and maintenance, it can be widely applied to the occasion of multi-exhaust gas purification processing, effectively improve environment protecting.
Description
Technical field
It is especially a kind of to be carried out using two waveband UV, to waste gas treatment process the present invention relates to a kind of exhaust treatment system
Exhaust treatment systems that intelligent multi-cycle automatically controls, using combined type means.Belong to environmental technology field.
Background technique
At present carry out exhaust-gas treatment, especially VOCs treatment in, UV photodissociation oxidation technology belong to comparative maturity and
Common technology.But there is also many problems not to be solved effectively, as organic matter is easy to paste after long-play
UV lamp pipe group is caused efficiency to decline or fail, is generated using the very short failure easy quickly of active carbon filter life, UV lamp pipe group
Ozone, which does not react sufficiently to be just expelled directly out, to be caused secondary pollution, causes exhaust-gas treatment to be not thorough using single line process, is difficult to control
The treatment effeciency of exhaust gas processed and effect etc..So that using the generally existing efficiency of exhaust treatment system of UV photodissociation oxidation technology
Low, the defects of effect is poor, maintenance workload is big, operating cost is high, service life is short.
The prior art has to be handled using circulation process, such as a kind of Chinese patent " photooxidation catalytic waste gas processing dress
Set (application number: 201611023003.2) ", a kind of Chinese patent " ozone photodissociation Detachment Activity charcoal waste gas purification apparatus (application
Number: 201710871765.3) " etc., but do not consider the automatic control and equilibrium problem of air circulation and air inlet air quantity, to smelly
Oxygen content variation and last elimination are not also considered, and therefore, it is difficult to reach ideal exhaust-gas treatment effect.
In addition, existing carried out in photodissociation oxidation technology using two waveband UV lamp pipe, not according to UV-C and UV-D to having
The different characteristics of evil ingredient photolysis mechanism and ozone generator reason, carry out reasonably optimizing layout, fully consider exhaust-gas treatment
The variation of amount and its ingredient, and planning is balanced to ozone generation and consumption, and realize corresponding intelligent automatic control,
Effective control measure are not taken to the service life for extending UV lamp pipe.
Summary of the invention
In order to solve the above technical problems, the purpose of the present invention is to provide a kind of two waveband UV photodissociation oxidation intelligence to follow
Ring controls composite exhaust gas processing system, solves active carbon failure, organic exhaust gas paste pipe, eliminates ozone residual, intelligent automatic control
A series of problems, such as treatment effeciency and effect of exhaust gas, effectively improves the processing speed, efficiency and effect of system, greatly reduces dimension
Workload and operating cost are protected, the service life of UV lamp pipe and whole system is extended.Meanwhile also have structure is simple, cost compared with
The advantages that low, reliable for operation, convenient for installation and maintenance.
The technical solution adopted by the present invention to solve the technical problems is:
The two waveband UV photodissociation oxidation intelligent circulation controls composite exhaust gas processing system, including the first process chamber (1), second
Process chamber (2), third process chamber (3), fourth processing chamber (4), UV-D light tube group (5), UV-C light tube group (6), active carbon filtering
Device (7), gas composition sensor (8), intelligent measuring and control device (9), air exhauster (10), circulating fan (11).
First process chamber (1), second processing room (2), third process chamber (3), fourth processing chamber (4) be sequentially connected it is logical,
Three process chambers (3) are connected with the first process chamber (1).
UV-D light tube group (5) are installed inside first process chamber (1), UV-D light tube group (5) are installed inside third process chamber (3)
With UV-C light tube group (6), fourth processing chamber (3) is internal to install UV-C light tube group (6), and the installation of third process chamber (3) inlet is lived
Property carbon filter (7).
Exhaust gas from second processing room (2) enter, with the first process chamber (1) come through UV-D light tube group (5), treated
After gas is sufficiently mixed, mixed gas enters third process chamber (3) through active carbon filter (7), through UV-D light tube group (5) and
After UV-C light tube group (6) photodissociation oxidation processes, a part enters the first process chamber (1), handles through (5) photodissociation of UV-D light tube group,
It sends second processing room (2) back to again, constitutes the circulating treatment procedure of exhaust gas, another part enters fourth processing chamber (4), via UV-C
It is discharged after light tube group (6) photodissociation processing.
Gas composition sensor (8) is mounted on the outlet port of fourth processing chamber (4), acquire in real time in exhaust gas it is harmful at
Divide content and ozone content, gives intelligent measuring and control device (9) and carry out Real Time Monitoring.
Setting ozone content reasonable threshold value progressively closes off reduction when ozone content is higher in intelligent measuring and control device (9)
The operation quantity of UV-D light tube group (5) in third process chamber (3) increases in third process chamber (3) conversely, gradually opening
The operation quantity of UV-D light tube group (5).
Harmful ingredient content reasonable threshold value is set in intelligent measuring and control device (9), when Harmful ingredient content is relatively low, gradually
It closes and reduces the operation quantity of the UV-C light tube group (6) in third process chamber (3), improve air exhauster (10) revolving speed, reduce and follow
Ring blower (11) revolving speed increases the operation quantity of the UV-C light tube group (6) in third process chamber (3), reduces conversely, gradually opening
Air exhauster (10) revolving speed improves circulating fan (11) revolving speed.
The principle that intelligent measuring and control device (9) carries out automatic real-time control is, before the exhaust-gas treatment speed needed for guaranteeing
Put, reduce the operation quantity of UV-D light tube group (5) and UV-C light tube group (6) to the greatest extent, and balanced multiple UV-D light tube groups (5) and
The runing time of multiple UV-C light tube groups (6), and the Harmful ingredient content and ozone content that make to discharge in exhaust gas are maintained at reasonable
Threshold range in.
Further, the UV-D light tube group (5), UV-C light tube group (6) are drawer-type structure.
Further, the active carbon filter (7) is drawer-type structure.
Further, further include nano TiO 2 net (12), fourth processing chamber (4) inside is mounted on, with UV-C light tube group (6)
It is used cooperatively.
Further, active carbon filter (7) are installed in fourth processing chamber (4) inlet.
Further, further include pretreatment chamber (13), enter second after the preprocessed room of exhaust gas (13) pretreatment to be processed
Process chamber (2)；Filter screen (14) are installed in pretreatment chamber (13), are drawer-type structure；There is row in pretreatment chamber (13) bottom
Dirty mouth (15).
Further, further include pressure sensor (16), be mounted in second processing room (2), acquire second processing in real time
Room (2) internal pressure, gives intelligent measuring and control device (9), automatically controls air exhauster (10) and circulating fan (11) revolving speed, maintains
It is negative pressure state inside second processing room (2).
Compared with prior art, the present invention has the advantage that
1, circulating treatment procedure is constituted using the first process chamber, second processing room and third process chamber, fourth processing chamber is discharged
Preceding last processing；It is right for the different characteristics that UV-C and UV-D manages harmful components photolysis mechanism and ozone generator
UV-C light tube group and UV-D light tube group have carried out reasonably optimizing layout, and the generation of ozone has been planned in entire exhaust-gas treatment process
With the process of consumption, ozone was not only taken full advantage of but also can have been completely eliminated in final stage；Using filtering, absorption, photodissociation,
A variety of composite means such as oxidation, catalysis, the circulating treatment procedure of intelligent control exhaust gas.Solve single line flow processing be not thorough and
The ozone that UV lamp pipe group generates, which does not react sufficiently to be just expelled directly out, causes secondary pollution problems.Effectively improve the processing of system
Efficiency and effect, meanwhile, also have many advantages, such as that structure is simple, cost is relatively low, reliable for operation, convenient for installation and maintenance.
2, the Harmful ingredient content and ozone content in exhaust gas are acquired in real time using gas composition sensor, by intelligent monitoring
Device carries out intelligent automatic control, under the premise of guaranteeing required exhaust-gas treatment speed, reduces UV-D light tube group and UV- to the greatest extent
The operation quantity of C light tube group, and the Harmful ingredient content and ozone content that make to discharge in exhaust gas are maintained at reasonable threshold range
It is interior.The processing speed, efficiency and effect for effectively improving system solve the problems, such as that discharge gas ozone content is excessively high, and can use up
The runing time of the balanced each UV lamp pipe group of amount, effectively extends the service life of UV-D light tube group and UV-C light tube group.
3, the exhaust gas having just enter into carries out exhaust gas pretreatment by pretreatment chamber, after eliminating solid particle and water vapour, first with
Rich cycle gas mixed oxidization ozoniferous, then filtered through active carbon, so that most of bulky grain is divided in organic exhaust gas
It after solution or absorption, is just contacted with UV-D light tube group and UV-C light tube group, efficiently solves the problems, such as paste tube failure, improve photodissociation effect
Rate and system effectiveness greatly reduce maintenance workload and operating cost, extend service life.
4, the design of system flow is so that contain ozone in the exhaust gas for passing through active carbon filter, constantly to active carbon
Carry out circulating purification regeneration, greatly reduce the frequency of maintenance of active carbon filter, effectively improve absorption and photodissociation oxidation effectiveness,
It greatly reduces maintenance workload and operating cost, extend service life.
5, UV-D light tube group, UV-C light tube group, active carbon filter, filter screen are drawer type design, are easily installed, tie up
It repairs, replace, clean, also have the advantages that production is easy for installation, maintenance maintenance is convenient, operating cost is low etc..
6, air exhauster and circulating fan rotating speed are automatically controlled using pressure sensor combination intelligent measuring and control device, maintained whole
A internal system is negative pressure state, it is therefore prevented that pernicious gas and ozone leak.
Detailed description of the invention
Fig. 1: system structure diagram.
In figure: the first process chamber of 1-, 2- second processing room, 3- third process chamber, 4- fourth processing chamber, 5-UV-D fluorescent tube
Group, 6-UV-C light tube group, 7- active carbon filter, 8- gas composition sensor, 9- intelligent measuring and control device, 10- air exhauster,
11- circulating fan, 12- nano TiO 2 net, 13- pretreatment chamber, 14- filter screen, 15- sewage draining exit, 16- pressure sensor.
Specific embodiment
The invention will now be described in further detail with reference to the accompanying drawings:
It is as shown in Figure 1 system structure diagram, the two waveband UV photodissociation oxidation intelligent circulation control composite exhaust gas processing
System includes the first process chamber (1), second processing room (2), third process chamber (3), fourth processing chamber (4), UV-D light tube group
(5), UV-C light tube group (6), active carbon filter (7), gas composition sensor (8), intelligent measuring and control device (9), air exhauster
(10), circulating fan (11), nano TiO 2 net (12), pretreatment chamber (13), filter screen (14), sewage draining exit (15), pressure sensing
Device (16).
In Fig. 1, the organic exhaust gas of purified treatment is needed, generally also contains fraction solids particle and water vapour, passes first into
Pretreatment chamber (13) is pre-processed.Filter screen (14) uses stainless steel metal filter screen, is full of entire pretreatment chamber (13), then
Solid particle in organic exhaust gas largely adheres on filter screen (14), and water vapour encounters filter screen (14) also and can generate solidifying
Knot, under the effect of gravity, condensed water carry sewage draining exit (15) discharge of passing through under solid particle, to be effectively reduced subsequent photodissociation
The pressure of process, and reduce the pollution to UV-D light tube group (5), UV-C light tube group (6), system effectiveness is improved, is extended
Service life.
In Fig. 1, filtered exhaust gas enters second processing room (2), and the gas to come with the first process chamber (1) is sufficiently mixed
It closes, then enters third process chamber (3) after active carbon filter (7) absorption, via UV-D light tube group (5), UV-C light tube group (6)
After photodissociation oxidation processes, a part is transmitted back to the first process chamber (1), via UV-D light tube group (5) photodissociation oxidation processes, then sends back to
Second processing room (2), constitutes the circulating treatment procedure of exhaust gas.Wherein, the gas that the first process chamber (1) comes is recyclegas,
UV-D light tube group (5) and UV-C light tube group (6) photodissociation for having already passed through third process chamber (3) are oxidation-treated, and at first
The processing of photodissociation again is carried out in reason room (1) under the action of UV-D light tube group (5), harmful components are further effectively addressed.
Simultaneously as the effect of UV-D light tube group (5) make wherein ozone content it is higher, with the filtered exhaust gas newly entered
Mixing, the preliminary exposition of harmful substance has been carried out using ozone first；Entering third process chamber through active carbon filter (7)
(3) during, ozone again can to active carbon filter (7) generate cleaning activating and regenerating effect, both reduce ozone content,
The efficiency of active carbon filter (7) is improved again and extends service life.
In Fig. 1, the UV-D light tube group (5) and UV-C light tube group (6) of third process chamber (3) carry out photodissociation to the exhaust gas of entrance
It aoxidizes, harmful substance has already passed through filtering and circular treatment in exhaust gas at this time, and exhaust gas a part that treated is as circulating air
Body enters the first process chamber (1), and another part, which enters fourth processing chamber (4) after active carbon filter (7) absorption again, to be done finally
Catalysis photodissociation oxidation.
In Fig. 1, the exhaust gas into fourth processing chamber (4) has been repeatedly a variety of by circulation, oxidation, photodissociation, absorption etc.
Composite means processing, harmful components are seldom, and may wherein contain a small amount of ozone.UV-C light tube group (6) uses C-band
Ultraviolet light does not generate ozone substantially, and basic during capable of adhering to the ingredient of UV-C light tube group (6) in exhaust gas in front
It is disposed, under the catalytic action of nano TiO 2 net (9), last catalysis photodissociation is done to exhaust gas and aoxidizes and eliminates last residual
The ozone deposited is up to the exhaust gas discharge of discharge standard.
In Fig. 1, gas composition sensor (8) is mounted on the outlet port of fourth processing chamber (4), acquires in exhaust gas in real time
Harmful ingredient content and ozone content give intelligent measuring and control device (9) and carry out Real Time Monitoring.
Setting ozone content reasonable threshold value progressively closes off reduction when ozone content is higher in intelligent measuring and control device (9)
The operation quantity of UV-D light tube group (5) in third process chamber (3) increases in third process chamber (3) conversely, gradually opening
The operation quantity of UV-D light tube group (5).
Harmful ingredient content reasonable threshold value is set in intelligent measuring and control device (9), when Harmful ingredient content is relatively low, gradually
It closes and reduces the operation quantity of the UV-C light tube group (6) in third process chamber (3), improve air exhauster (10) revolving speed, reduce and follow
Ring blower (11) revolving speed increases the operation quantity of the UV-C light tube group (6) in third process chamber (3), reduces conversely, gradually opening
Air exhauster (10) revolving speed improves circulating fan (11) revolving speed.
It acquires the Harmful ingredient content and ozone content in exhaust gas in real time using gas composition sensor, is filled by intelligent monitoring
It sets and carries out automatically controlling, under the premise of guaranteeing required exhaust-gas treatment speed, reduce UV-D light tube group (5) and UV-C lamp to the greatest extent
The operation quantity of pipe group (6), and the Harmful ingredient content and ozone content that make to discharge in exhaust gas are maintained at reasonable threshold range
It is interior.The processing speed, efficiency and effect that system can be effectively improved solve the problems, such as secondary pollution caused by ozone content is excessively high.
And the runing time of each UV lamp pipe group balanced as far as possible, so that the accumulated running time of each UV lamp pipe group is essentially identical, it can be effective
Extend the service life of UV-D light tube group and UV-C light tube group.
In Fig. 1, pressure sensor (16) is mounted in second processing room (2), acquires pressure inside second processing room (2) in real time
Power is given intelligent measuring and control device (9), and air exhauster (10) and circulating fan (11) revolving speed is automatically controlled, and maintains second processing room
(2) internal is negative pressure state.Due to being the pressure highest point of whole system inside second processing room (2), to maintain automatically whole
A internal system is negative pressure state, it is therefore prevented that pernicious gas and ozone leak.
The foregoing is merely preferable embodiments of the invention, are not intended to limit the invention, all in spirit of the invention
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (7)
1. two waveband UV photodissociation aoxidizes intelligent circulation and controls composite exhaust gas processing system, it is characterised in that: including the first process chamber
(1), second processing room (2), third process chamber (3), fourth processing chamber (4), UV-D light tube group (5), UV-C light tube group (6), work
Property carbon filter (7), gas composition sensor (8), intelligent measuring and control device (9), air exhauster (10), circulating fan (11)；
First process chamber (1), second processing room (2), third process chamber (3), fourth processing chamber (4) be sequentially connected it is logical, at third
Reason room (3) is connected with the first process chamber (1)；
UV-D light tube group (5) are installed inside first process chamber (1), inside third process chamber (3) installation UV-D light tube group (5) and
UV-C light tube group (6), fourth processing chamber (3) is internal to install UV-C light tube group (6), third process chamber (3) inlet installation activity
Carbon filter (7)；
Exhaust gas enters from second processing room (2), with the first process chamber (1) come through UV-D light tube group (5) treated gas
After being sufficiently mixed, mixed gas enters third process chamber (3) through active carbon filter (7), through UV-D light tube group (5) and UV-C lamp
After pipe group (6) photodissociation oxidation processes, a part enters the first process chamber (1), handles through (5) photodissociation of UV-D light tube group, then send back to
Second processing room (2) constitutes the circulating treatment procedure of exhaust gas, and another part enters fourth processing chamber (4), via UV-C light tube group
(6) it is discharged after photodissociation processing；
Gas composition sensor (8) is mounted on the outlet port of fourth processing chamber (4), and the harmful components acquired in exhaust gas in real time contain
Amount and ozone content give intelligent measuring and control device (9) and carry out Real Time Monitoring；
Setting ozone content reasonable threshold value progressively closes off reduction third when ozone content is higher in intelligent measuring and control device (9)
The operation quantity of UV-D light tube group (5) in process chamber (3), conversely, gradually opening the UV-D lamp increased in third process chamber (3)
The operation quantity of pipe group (5)；
Setting Harmful ingredient content reasonable threshold value is progressively closed off when Harmful ingredient content is relatively low in intelligent measuring and control device (9)
The operation quantity of the UV-C light tube group (6) in third process chamber (3) is reduced, air exhauster (10) revolving speed is improved, reduces circulated air
Machine (11) revolving speed increases the operation quantity of the UV-C light tube group (6) in third process chamber (3), reduces exhaust conversely, gradually opening
Blower (10) revolving speed improves circulating fan (11) revolving speed；
The principle that intelligent measuring and control device (9) carries out automatic real-time control is, under the premise of guaranteeing required exhaust-gas treatment speed,
Reduce the operation quantity of UV-D light tube group (5) and UV-C light tube group (6) to the greatest extent, and balanced multiple UV-D light tube groups (5) and multiple
The runing time of UV-C light tube group (6), and the Harmful ingredient content and ozone content that make to discharge in exhaust gas are maintained at reasonable threshold
It is worth in range.
2. two waveband UV photodissociation oxidation intelligent circulation according to claim 1 controls composite exhaust gas processing system, feature
Be: the UV-D light tube group (5), UV-C light tube group (6) are drawer-type structure.
3. two waveband UV photodissociation oxidation intelligent circulation according to claim 1 controls composite exhaust gas processing system, feature
Be: the active carbon filter (7) is drawer-type structure.
4. two waveband UV photodissociation oxidation intelligent circulation according to claim 1 controls composite exhaust gas processing system, feature
It is: including nano TiO 2 net (12), is mounted on fourth processing chamber (4) inside, is used cooperatively with UV-C light tube group (6).
5. two waveband UV photodissociation oxidation intelligent circulation according to claim 1 controls composite exhaust gas processing system, feature
It is: active carbon filter (7) is installed in fourth processing chamber (4) inlet.
6. two waveband UV photodissociation oxidation intelligent circulation according to claim 1 controls composite exhaust gas processing system, feature
It is: including pretreatment chamber (13), enters second processing room (2) after the preprocessed room of exhaust gas (13) pretreatment to be processed；Pre- place
Filter screen (14) are installed in reason room (13), are drawer-type structure；There are sewage draining exit (15) in pretreatment chamber (13) bottom.
7. two waveband UV photodissociation oxidation intelligent circulation according to claim 1 controls composite exhaust gas processing system, feature
It is: including pressure sensor (16), is mounted in second processing room (2), acquires second processing room (2) internal pressure in real time,
It gives intelligent measuring and control device (9), automatically controls air exhauster (10) and circulating fan (11) revolving speed, maintain second processing room (2)
Inside is negative pressure state.
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Cited By (1)
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| CN113426271A (en) * | 2021-07-30 | 2021-09-24 | 荷兰英菲尼有限公司 | Device for purifying gas |
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