CN204678355U - Be suitable for the catalytic combustion system of VOCs treatment - Google Patents
Be suitable for the catalytic combustion system of VOCs treatment Download PDFInfo
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- CN204678355U CN204678355U CN201520404796.7U CN201520404796U CN204678355U CN 204678355 U CN204678355 U CN 204678355U CN 201520404796 U CN201520404796 U CN 201520404796U CN 204678355 U CN204678355 U CN 204678355U
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- adsoption catalysis
- clarifier
- catalysis clarifier
- adsoption
- catalytic combustion
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
The utility model relates to the catalytic combustion system being suitable for VOCs treatment, comprise ventilating fan, the outlet side of ventilating fan is connected with Flue Gas Pretreatment Device, the outlet side of Flue Gas Pretreatment Device is connected with heat exchanger, the outlet side of described heat exchanger is parallel is connected with adsoption catalysis clarifier I, adsoption catalysis clarifier II, adsoption catalysis clarifier I, adsoption catalysis clarifier II inside is provided with catalyst, adsoption catalysis clarifier I, microwave applicator I is respectively arranged with outside adsoption catalysis clarifier II, microwave applicator II, adsoption catalysis clarifier I, the inlet end of adsoption catalysis clarifier II is connected with air blower.The utility model arranges adsoption catalysis clarifier I, adsoption catalysis clarifier II by block form, two clarifiers carry out organic exhaust gas adsorption in turn and concentrate and catalyst desorb-microwave catalysis oxidation operation, not only increase the treatment effeciency of waste gas, and avoid the large problem of traditional catalytic combustion system floor space.
Description
Technical field
The utility model relates to exhaust fume catalytic treating apparatus field, particularly, relates to a kind of catalytic combustion system being suitable for VOCs treatment.
Background technology
Production by Catalytic Combustion Process, also referred to as non-flaming combustion, its essence is catalytic oxidation, adopts suitable catalyst, utilizes the treating technology of catalyst activity the temperature of organic component below burning-point (200-400 DEG C) and oxidation to be closed, generates nontoxic CO
2and H
2o, reaches purification object.Production by Catalytic Combustion Process is particularly suitable for that organic concentration is higher, complicated components and do not have the purified treatment of the organic exhaust gas of recovery value.
For low-concentration organic exhaust gas, existing catalytic combustion system is not only low to the treatment effeciency of waste gas, and floor space is large; In addition, a large amount of reaction heat can be produced in waste gas catalytic combustion process, the reaction heat of generation can not be processed utilization by existing catalytic combustion system in time, not only causes the waste of heat energy, and the exhaust gas evacuation with reaction heat after purification can be caused serious potential safety hazard; Existing catalytic combustion system also can cause portion to be purified completely and emptying, if things go on like this, still there is hidden danger to air quality.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of catalytic combustion system being suitable for VOCs treatment, has overcome the problem that the treatment effeciency of existing catalytic combustion system to waste gas is low, floor space is large.
The technical scheme in the invention for solving the above technical problem is: the catalytic combustion system being suitable for VOCs treatment, comprise ventilating fan, the outlet side of ventilating fan is connected with Flue Gas Pretreatment Device, the outlet side of Flue Gas Pretreatment Device is connected with heat exchanger, the outlet side of described heat exchanger is parallel is connected with adsoption catalysis clarifier I, adsoption catalysis clarifier II, adsoption catalysis clarifier I, adsoption catalysis clarifier II inside is provided with catalyst, adsoption catalysis clarifier I, microwave applicator I is respectively arranged with outside adsoption catalysis clarifier II, microwave applicator II, adsoption catalysis clarifier I, the inlet end of adsoption catalysis clarifier II is connected with air blower.During the organic exhaust gas of existing catalytic combustion system for the treatment of low concentration, need desorb after organic exhaust gas Adsorption Concentration, thus need to be equipped with desorption equipment, so not only cause the efficiency of exhaust-gas treatment low, make occupation area of equipment large and investment increase, in addition, when waste gas higher for concentration after absorption is drawn into desorption equipment, increase blower fan extra again, further increase energy consumption and the use cost of catalytic combustion system, ventilating fan described in the utility model specifically refers to the device for will the waste gas of purification be needed to introduce adsoption catalysis clarifier, described Flue Gas Pretreatment Device can carry out drying to waste gas, depositing dust process, described heat exchanger is by organic exhaust gas heat exchange to room temperature, and the cryogenic absorption being conducive to organic exhaust gas concentrates, described adsoption catalysis clarifier I, adsoption catalysis clarifier II had not only concentrated place for organic exhaust gas adsorption but also had been organic exhaust gas catalytic oxidation place, when closing microwave applicator I and air blower or microwave applicator II and air blower, adsoption catalysis clarifier I, adsoption catalysis clarifier II pair of organic exhaust gas carries out Adsorption Concentration, when at adsoption catalysis clarifier I, when the concentration of the organic exhaust gas in adsoption catalysis clarifier II reaches certain value, open microwave applicator I and air blower or microwave applicator II and air blower, adsoption catalysis clarifier I, adsoption catalysis clarifier II pair of organic exhaust gas carries out catalytic oxidation, described microwave applicator I, microwave applicator II specifically show in adsoption catalysis clarifier I, adsoption catalysis clarifier II catalyst provide organic exhaust fume catalytic to be oxidized institute energy requirement, microwave heating technique is existing heating technique, it is used for waste gas desorb and catalytic combustion heating as the alternative traditional electrical mode of heating of a kind of Novel heating mode, and have firing rate fast, be easy to control, consume energy low, the feature that outlet exhaust temperature is lower, described catalyst specifically refers to the medium of organic exhaust gas catalytic oxidation, and the catalyst selected plays absorption and catalytic oxidation function simultaneously, described air blower specifically refers to introduces adsoption catalysis clarifier I by pure air, the equipment of adsoption catalysis clarifier II, air blower provides except oxygen except for catalytic oxidation process, also to adsoption catalysis clarifier I, adsoption catalysis clarifier II and internal accelerator play the effect of fast cooling, reduce adsoption catalysis clarifier I, adsoption catalysis clarifier II cools the time, be conducive to catalyst and again carry out adsorption operations, the utility model adsoption catalysis clarifier I, adsoption catalysis clarifier II had not only concentrated place for organic exhaust gas adsorption but also had been organic exhaust gas catalytic oxidation place, when avoiding the organic exhaust gas of existing catalytic combustion system for the treatment of low concentration, the problem that the floor space needing additional configuration desorption equipment to cause is large, and adsoption catalysis clarifier I of the present utility model, adsoption catalysis clarifier II block form is arranged, two adsoption catalysis clarifiers carry out organic exhaust gas adsorption in turn and concentrate and catalyst desorb-microwave catalysis oxidation operation, (first in adsorption plant, organic exhaust gas is concentrated with traditional catalytic unit, again the waste gas after concentrated is passed into desorption equipment and carries out catalytic oxidation) improve the efficiency of organically process, and the utility model adsoption catalysis clarifier I, the cold air that adsoption catalysis clarifier II adopts purges cooling, shorten the temperature fall time of catalyst, and then shorten adsoption catalysis clarifier I or adsoption catalysis clarifier II adsorbs the look time again, improve the overall circular flow efficiency of catalytic combustion system, so, it is low that the utility model overcomes the treatment effeciency of existing catalytic combustion system to waste gas, the problem that floor space is large.
Further, the outlet side of adsoption catalysis clarifier I, adsoption catalysis clarifier II is provided with waste heat boiler.Waste heat boiler for reclaiming high-temperature residual heat that waste gas is with after catalytic combustion, and produces water vapour, the heat energy produced can not only be recycled during catalytic combustion, and avoids the waste gas after purification and directly discharge the potential safety hazard caused with waste heat.
Further, the outlet side of waste heat boiler is connected with return line, and return line is connected with the inlet end of pretreatment unit.Return line is specifically arranged on the emptying pipe after waste heat boiler, the absorption tail gas of being discharged by adsoption catalysis clarifier I, adsoption catalysis clarifier II, microwave catalysis oxidation tail gas are partly refluxed in organic exhaust gas admission line by this return line, to guarantee organic exhaust gas adsorption or burning completely, improve plant waste gases purifying rate; And, return line of the present utility model is connected with the inlet end of pretreatment unit, thus the waste gas refluxed can be cooled to just to flow in clarifier after room temperature through heat exchanger and carry out concentrated absorption, avoids because of the adsorption rate of the too high reduction waste gas of reflux temperature in clarifier (waste gas has the character of cryogenic absorption speed in clarifier).
Further, adsoption catalysis clarifier I, adsoption catalysis clarifier II are earthenware or quartz ampoule.
Further, catalyst is metallic catalyst.The catalytic oxidation efficiency of metallic catalyst to organic exhaust gas can reach 95% and more than, and it has good suction-operated to organic exhaust gas, further increasing the treatment effeciency of catalytic combustion system to waste gas.
To sum up, the beneficial effects of the utility model are:
1, the utility model arranges adsoption catalysis clarifier I, adsoption catalysis clarifier II by block form, adsoption catalysis clarifier I, adsoption catalysis clarifier II had not only concentrated place for organic exhaust gas adsorption but also be organic exhaust gas catalytic oxidation place, two clarifiers carry out organic exhaust gas adsorption in turn and concentrate and catalyst desorb-microwave catalysis oxidation operation, not only increase the treatment effeciency of waste gas, and the utility model achieves adsorption-desorption-catalyticing combustion process closed loop, without the need to another standby desorption equipment, avoid the problem that floor space is large.
2, absorption tail gas and catalytic oxidation combustion tail gas are back in organic exhaust gas admission line by the pipeline backflow adopted by the utility model, improve the organic waste-gas purification rate of equipment.
3, the cold air that the utility model the utility model adsoption catalysis clarifier I, adsoption catalysis clarifier II adopt purges cooling, shorten the temperature fall time of catalyst, and then shorten adsoption catalysis clarifier I or adsoption catalysis clarifier II adsorbs the look time again, improve the overall circular flow efficiency of catalytic combustion system.
4, the utility model uses waste heat boiler to carry out waste heat recovery to catalytic combustion tail gas, improves plant capacity utilization ratio.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Mark and corresponding parts title in accompanying drawing:
1-ventilating fan; 2-flue gas pre-processing device; 3-heat exchanger; 4-first check valve; 5-first triple valve; 6-first two-port valve; 7-second two-port valve; 8-second triple valve; 9-the 3rd triple valve; 10-second check valve; 11-the 3rd check valve; 12-the 4th triple valve; 13-waste heat boiler; 14-the 5th triple valve; The attached catalyst for purifying I of 15-; 16-adsorption cleaning catalyst converter II; 17-microwave applicator I; 18-microwave applicator II; 19-the 6th triple valve; 20-the 3rd two-port valve; 21-the 4th two-port valve; 22-the 4th check valve; 23-air blower.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.
Embodiment 1:
As shown in Figure 1, be suitable for the catalytic combustion system of VOCs treatment, comprise ventilating fan 1, the outlet side of ventilating fan 1 is connected with Flue Gas Pretreatment Device 2, the outlet side of Flue Gas Pretreatment Device 2 is connected with heat exchanger 3, the outlet side of described heat exchanger 3 is parallel is connected with adsoption catalysis clarifier I 15, adsoption catalysis clarifier II 16, adsoption catalysis clarifier I 15, adsoption catalysis clarifier II 16 inside is provided with metallic catalyst, adsoption catalysis clarifier I 15, microwave applicator I 17 is respectively arranged with outside adsoption catalysis clarifier II 16, microwave applicator II 18, adsoption catalysis clarifier I 15, the inlet end of adsoption catalysis clarifier II 16 is connected with air blower 23, adsoption catalysis clarifier I 15, the outlet side of adsoption catalysis clarifier II 16 is provided with waste heat boiler 13, the outlet side of waste heat boiler 13 is connected with return line, return line is connected with the inlet end of pretreatment unit 2, described adsoption catalysis clarifier I 15, adsoption catalysis clarifier II 16 is earthenware.
Operation principle of the present utility model: when blower fan 1 introduce be the organic exhaust gas of low concentration Wind Volume time, first check valve 4, first triple valve 5, first two-port valve 6, second triple valve 8, second check valve 10, 4th triple valve 12, 5th triple valve 14, 4th check valve 22 is opened, first pre-processing device 2 carries out drying to waste gas, dust removal process, waste gas is down to room temperature by heat exchanger 3, after cooling, waste gas enters in adsoption catalysis clarifier I 15 and carries out Adsorption Concentration, until the catalyst in adsorption cleaning catalyst converter I 15 is close or reach capacity, adsorption operations stops, first two-port valve 6, second check valve 10 is closed, second two-port valve 7, 3rd triple valve 9, 3rd check valve 11 is opened, now adsorption operations opened by adsoption catalysis clarifier II 16, meanwhile, adsoption catalysis clarifier I 15 starts desorb-microwave catalysis oxidation operation, microwave applicator I 17 runs, until temperature reach organic exhaust gas catalytic oxidation temperature required after, air blower 23 is run, 6th triple valve 19, 3rd two-port valve 20, second check valve 10 is opened, organic exhaust gas carries out catalytic oxidation combustion in adsoption catalysis clarifier I 15, the burnt gas that adsoption catalysis clarifier I 15 is discharged and the absorption tail gas that adsoption catalysis clarifier II 16 is discharged together pass into waste heat boiler 13 recovery waste heat and produce water vapour, exhaust gas section after waste heat boiler 13 processes is emptying, part enters in adsoption catalysis clarifier II 16 through reflux line carries out Adsorption Concentration process again, the saturated required time of Catalyst Adsorption is longer, after adsoption catalysis clarifier I 15 completes catalytic oxidation operation, adsoption catalysis clarifier II 16 is still in the Adsorption Concentration stage, and adsoption catalysis clarifier I 15 catalytic oxidation can not carry out Adsorption Concentration operation after having operated immediately again, and need adsoption catalysis clarifier I 15 inner catalyst be lowered the temperature, therefore, microwave applicator I 17 is out of service, air blower 23 continues to pass into cold air to adsoption catalysis clarifier I 15 internal accelerator fast cooling to adsoption catalysis clarifier I 15, reduce adsoption catalysis clarifier I 15 cool time, waste gas still carries out waste heat recovery processing by waste heat boiler 13, after room temperature, air blower 23 is out of service, 3rd two-port valve 20 cuts out, after catalytic cleaner II 16 upon adsorption completes Adsorption Concentration operation, first two-port valve 6, 4th two-port valve 21 is opened, second two-port valve 7 cuts out, microwave applicator II 18 runs, adsoption catalysis clarifier I 15 starts Adsorption Concentration operation again, microwave applicator II 18 catalytic oxidation temperature reaches rear operation air blower 23, start desorb-microwave catalysis oxidation operation.
Embodiment 2:
Earthenware in embodiment, based on embodiment 1, is replaced to quartz ampoule by the present embodiment.
As mentioned above, the utility model can be realized preferably.
Claims (5)
1. be suitable for the catalytic combustion system of VOCs treatment, comprise ventilating fan (1), the outlet side of ventilating fan (1) is connected with Flue Gas Pretreatment Device (2), it is characterized in that, the outlet side of Flue Gas Pretreatment Device (2) is connected with heat exchanger (3), the outlet side of described heat exchanger (3) is parallel is connected with adsoption catalysis clarifier I (15), adsoption catalysis clarifier II (16), adsoption catalysis clarifier I (15), adsoption catalysis clarifier II (16) inside is provided with catalyst, adsoption catalysis clarifier I (15), adsoption catalysis clarifier II (16) outside is respectively arranged with microwave applicator I (17), microwave applicator II (18), adsoption catalysis clarifier I (15), the inlet end of adsoption catalysis clarifier II (16) is connected with air blower (23).
2. the catalytic combustion system being suitable for VOCs treatment according to claim 1, is characterized in that, the outlet side of described adsoption catalysis clarifier I (15), adsoption catalysis clarifier II (16) is provided with waste heat boiler (13).
3. the catalytic combustion system being suitable for VOCs treatment according to claim 2, is characterized in that, the outlet side of described waste heat boiler (13) is connected with return line, and return line is connected with the inlet end of pretreatment unit (2).
4., according to the arbitrary described catalytic combustion system being suitable for VOCs treatment of claims 1 to 3, it is characterized in that, described adsoption catalysis clarifier I (15), adsoption catalysis clarifier II (16) are earthenware or quartz ampoule.
5. the catalytic combustion system being suitable for VOCs treatment according to claim 4, is characterized in that, described catalyst is metallic catalyst.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520404796.7U CN204678355U (en) | 2015-06-12 | 2015-06-12 | Be suitable for the catalytic combustion system of VOCs treatment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520404796.7U CN204678355U (en) | 2015-06-12 | 2015-06-12 | Be suitable for the catalytic combustion system of VOCs treatment |
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| CN204678355U true CN204678355U (en) | 2015-09-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879761A (en) * | 2015-06-12 | 2015-09-02 | 四川省有色冶金研究院有限公司 | Catalytic combustion device suitable for treating organic waste gas as well as waste gas treatment process |
| CN106895419A (en) * | 2017-03-29 | 2017-06-27 | 安徽师范大学 | A kind of valuator device of low-temperature combustion catalyst |
-
2015
- 2015-06-12 CN CN201520404796.7U patent/CN204678355U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879761A (en) * | 2015-06-12 | 2015-09-02 | 四川省有色冶金研究院有限公司 | Catalytic combustion device suitable for treating organic waste gas as well as waste gas treatment process |
| CN106895419A (en) * | 2017-03-29 | 2017-06-27 | 安徽师范大学 | A kind of valuator device of low-temperature combustion catalyst |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |