CN108579331A - A kind of efficient desorption catalyzing device of polluted air from paint booth governing system - Google Patents
A kind of efficient desorption catalyzing device of polluted air from paint booth governing system Download PDFInfo
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- CN108579331A CN108579331A CN201810696660.6A CN201810696660A CN108579331A CN 108579331 A CN108579331 A CN 108579331A CN 201810696660 A CN201810696660 A CN 201810696660A CN 108579331 A CN108579331 A CN 108579331A
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- desorption
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- 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
- B01D53/04—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 stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
-
- 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
- B01D53/04—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 stationary adsorbents
- B01D53/0454—Controlling adsorption
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Separation Of Gases By Adsorption (AREA)
Abstract
The invention discloses a kind of efficient desorption catalyzing devices of polluted air from paint booth governing system, including heat exchanger, catalytic combustion reactor and desorption wind turbine, the desorption of adsorbent equipment is connected by escape pipe with heat exchanger refrigerant inlet, heat exchanger refrigerant exit is connected with desorption catalyzing reactor inlet, desorption catalyzing reactor outlet is connected with heat exchanger heating agent entrance, the outlet of heat exchanger heating agent is connected by hot wind inlet pipe with desorption fans entrance, desorption fan outlet is connected by hot wind outlet pipe with the desorption entrance of adsorbent equipment, overflow pipe is set in the hot wind outlet pipe, the overflow pipe is connected with purification exhaust pipe, it is provided with flow spill valve on the overflow pipe, the desorption catalyzing device further includes the new air benefit pipe for being incorporated to hot wind inlet pipe, the new air, which is mended to be provided on pipe, fills into air door；The device catalytic is fast, and energy utilization rate is high.
Description
Technical field
The present invention relates to a kind of efficient desorption catalyzing device of polluted air from paint booth governing system, especially a kind of Wind Volume is high
The efficient desorption catalyzing device of concentration polluted air from paint booth governing system, belongs to polluted air from paint booth Treatment process field.
Background technology
The peak value of the large-scale Painting Shop VOCs gas concentrations of the industries such as ship may be up to 1000ppm or so, and process is porous
Increasingly harsh discharge standard requirement can be met after activated carbon and the absorption of molecular sieve adsorbent equipment.But the ability of molecular sieve absorption
It is limited, if not taking replacement or regeneration measure, filtering material is needed to frequently replace, operating cost is very high, absorption is imitated
Rate is also very low, and it is exceeded to be easy to cause discharge.
Invention content
To solve the above-mentioned problems, the technical solution adopted by the present invention is such, a kind of polluted air from paint booth improvement system
It unites efficient desorption catalyzing device, including heat exchanger, catalytic combustion reactor and desorption wind turbine, the desorption of adsorbent equipment are logical
It crosses escape pipe with heat exchanger refrigerant inlet to be connected, heat exchanger refrigerant exit is connected with catalytic combustion reactor entrance, catalysis
Combustion reactor outlet is connected with heat exchanger heating agent entrance, and the outlet of heat exchanger heating agent is entered by hot wind inlet pipe and desorption wind turbine
Mouth is connected, and desorption fan outlet is connected by hot wind outlet pipe with the desorption entrance of adsorbent equipment, is arranged in the hot wind outlet pipe
Overflow pipe, the overflow pipe are connected with purification exhaust pipe, and overflow valve, the desorption catalyzing are provided on the overflow pipe
Device further includes the new air benefit pipe for being incorporated to hot wind inlet pipe, and the new air is mended and is provided with compensating air valve door on pipe.
In order to start desorption catalyzing device faster, the catalytic reactor electrified heating function can be used for the first of device
Beginningization is run.
In order to ensure that the adsorbent equipment after desorption is quickly cooled down, lower step absorption work, the desorption catalyzing device are carried out
Further include the cooling air inlet pipe being connected with the desorption entrance of adsorbent equipment, cooling sky is provided on the cooling air inlet pipe
Air valve.
In order to avoid wind turbine frequent start-stop is desorbed, and ensure that desorption catalyzing reactor is in suitable temperature range, also wraps
The inner circulating tube being connected with desorption fan outlet is included, the inner circulating tube is incorporated to desorption gas outlet pipe, the desorption gas outlet pipe
On be provided with interior loop control valve.
Advantageous effect：
The gas after the pre- thermal desorption of heat exchanger in the desorption catalyzing device, the gas after desorption are sent to catalysis combustion again
It burns in reactor and carries out catalysis combustion decomposition；High-temperature gas after the completion of decomposition adds after heat exchanger cools down from supplement
The fresh air that air door enters increases oxygen content and is re-fed into adsorbent equipment after further cooling to an OK range
It is interior, desorption processing is carried out to the filler in adsorbent equipment；Circulating for desorption gas is ensured by desorption wind turbine.
Catalytic combustion reactor can be both catalyzed the high-temperature gas that reaction generates and tentatively be dropped by the heat exchanger
Temperature makes desorption normal operation；Also using the gas after the heat desorption of catalysis reaction generation, ensure the quick of catalysis reaction
Efficiently, it thereby may be ensured that desorption, the self-sustaining of catalysis is run
The system structure is ingenious, and catalysis reaction is fast, energy utilization rate is high；It can guarantee the fortune reliably and with long-term for ensureing adsorbent equipment
Row, and then it is up to standard to ensure that discharge continues.
Description of the drawings
Fig. 1 is the front view of the present invention；
Fig. 2 is the overall structure diagram of governing system；
Fig. 3 is present invention absorption work status architecture schematic diagram；
Fig. 4 is present invention desorption working state structure schematic diagram；
Fig. 5 is cooling work status architecture schematic diagram of the present invention.
Specific implementation mode
In order to deepen the understanding of the present invention, below in conjunction with embodiment and attached drawing, the invention will be further described, should
Embodiment is only used for explaining the present invention, is not intended to limit the scope of the present invention..
A kind of efficient desorption catalyzing device of polluted air from paint booth governing system, including heat exchanger 17, catalyst combustion reaction
Device 15 and desorption wind turbine 19, the desorption of sieve adsorpting bed 8 are connected by escape pipe with 17 refrigerant inlet of heat exchanger, heat
17 refrigerant exit of exchanger is connected with 15 entrance of catalytic combustion reactor, the outlet of catalytic combustion reactor 15 and 17 heat of heat exchanger
Matchmaker's entrance is connected, and the outlet of 17 heating agent of heat exchanger is connected by hot wind inlet pipe with desorption 19 entrance of wind turbine, and desorption wind turbine 19 exports
It is connected with the desorption entrance of sieve adsorpting bed by hot wind outlet pipe, overflow pipe is set in the hot wind outlet pipe, the overflow pipe
It is connected with purification exhaust pipe, overflow valve 18 is provided on the overflow pipe, the desorption catalyzing device further includes simultaneously
The new air for entering hot wind inlet pipe mends pipe, and the new air is mended and is provided with compensating air valve door 16 on pipe.
Catalytic reactor has electrified heating function, can be used for the initialization operation of device, can start desorption faster and urge
Makeup is set.
The desorption apparatus further includes the cooling air inlet pipe being connected with the desorption entrance of sieve adsorpting bed, described
Cooling air valve 21 is provided on cooling air inlet pipe, it is ensured that the sieve adsorpting bed after desorption is quickly cooled down.
It is further preferred that the desorption apparatus further includes the inner circulating tube being connected with desorption fan outlet, it is described
Inner circulating tube is incorporated to desorption gas outlet pipe, and interior loop control valve 20 is provided on the inner circulating tube, can be to avoid desorption wind
Machine frequent start-stop, and ensure that desorption catalyzing reactor is in suitable temperature range.
A kind of waste gas pollution control and treatment system including the efficient desorption catalyzing device, including above-mentioned desorption catalyzing device 14 and suction
Adsorption device, the adsorbent equipment are made of first order adsorbent equipment 3 and second level adsorbent equipment 9, second level absorption
Device 9 is made of the sieve adsorpting bed 8 of multiple parallel connections；The input terminal of the first order adsorbent equipment 3 is inhaled with lacquer spraying waste gas
Enter manifold 1 to be connected, the output end of first order adsorbent equipment 3 is connected with the absorption entrance of each sieve adsorpting bed, each molecule
The absorption outlet of sieve adsorbent bed is connected with induced draft fans 12；Each sieve adsorpting bed 8 adsorbs entrance and absorption exports
On be respectively arranged with second level inlet valve 6 and second level outlet valve 11.
The desorption of each sieve adsorpting bed 8 is connected with the escape pipe of desorption catalyzing device, desorption catalyzing device
Hot wind outlet pipe is connected with the desorption entrance of each sieve adsorpting bed 8；Each sieve adsorpting bed is desorbed entrance and takes off
Desorption purging inlet valve 7 and desorption purging outlet valve 10 are respectively arranged in attached outlet.
In order to promote the pretreating effect of first order adsorbent equipment, moved along lacquer spraying waste gas inside first order adsorbent equipment
Direction is provided with porous activated carbon adsorbent layer 2, the first nonwoven filtration stratum reticulare 4 and the second nonwoven filtration stratum reticulare 5.
In order to promote the pretreating effect of second level adsorbent equipment, honeycomb zeolite is filled in sieve adsorpting bed 8.
In order to which comprehensive each region to workshop carries out the collection of exhaust gas, the waste gas pollution control and treatment system further includes more
A lacquer spraying waste gas suction manifold (not marked in attached drawing) being arranged in workshop each region is connected with lacquer spraying waste gas suction main；
Utilize the method for the improvement Wind Volume high concentration polluted air from paint booth of above-mentioned waste gas pollution control and treatment system：
1) lacquer spraying waste gas is entered by lacquer spraying waste gas suction main 1 in first order adsorbent equipment 3, is adsorbed in lacquer spraying waste gas
Part VOCs gases；
2) moieties of second level adsorbent equipment 9 are introduced into through 3 pretreated lacquer spraying waste gas of first order adsorbent equipment
It sieves in adsorbent bed 8, is further adsorbed and removed the VOCs of the rest part of lacquer spraying waste gas；Simultaneously with this, second level adsorbent equipment 9
The VOCs of absorption is desorbed under the action of the high-temperature gas that desorption catalyzing device inputs for other part sieve adsorpting bed 8, takes off
Attached VOCs gases discharge after detecting 13 using discharge after the decomposition of desorption catalyzing device；
By the absorption of moieties adsorbent bed 8 in the adsorbent equipment of the second level and other part sieve adsorpting bed 8 with it is de-
Attached rotation makes entire adsorption process keep continuous in cycles.
The efficient desorption catalyzing device, including following three kinds of methods of operation：
A, the absorption working condition of desorption catalyzing device
The second level inlet valve 6 and second level outlet valve 11 for opening the sieve adsorpting bed 8 for needing to adsorb, are closed simultaneously
Desorption purging inlet valve 7 and desorption purging outlet valve 10 are closed, at this time by through the first order in corresponding sieve adsorpting bed 8
The pretreated exhaust gas of adsorbent equipment, the filler in sieve adsorpting bed 8 carry out adsorption operations to the VOCs in exhaust gas.
B, the desorption working condition of desorption catalyzing device
The desorption purging inlet valve 7 and desorption purging outlet valve 10 for opening the sieve adsorpting bed 8 for needing to be desorbed, are closed
Corresponding second level inlet valve 6 and second level outlet valve 11 are closed, compensating air valve door 16 is opened, opens flow spill valve 18,
Other valves of desorption catalyzing device are closed, desorption wind turbine 19 opens operation, that is, starts desorption process, when initial launch, needs
The electric heater for opening desorption catalyzing reactor 15, makes up to operating temperature.Hot-air flows into sieve adsorpting bed 8, to
Make its VOCs adsorbed be desorbed out, absorbs into heat exchanger 17 and urged into desorption catalyzing reactor 15 after thermal temperature increases
It is innocuous substance to change burning, and the gas temperature after burning further increases, mixed with supplement air after the cooling of over-heat-exchanger 17
Conjunction is fed again into sieve adsorpting bed 8 by desorption wind turbine 19 and is desorbed, and flow spill valve 18 passes through extra gas exhausting device
After cycle after a period of time, the VOCs that is adsorbed in sieve adsorpting bed 8 is desorbed, is catalyzed and burns, to make absorbing unit
Has adsorption capacity again.
C, the cooling work state of desorption catalyzing device
Cooling air valve 21 is opened, opens and purging inlet valve 7 and second level outlet valve 11 is desorbed, cycle in opening
Control valve 20, close the other valves of desorption catalyzing device keeps cooling air stream excessive using the swabbing action of induced draft fans 12
Son sieve adsorbent bed 8, to reduce its temperature to adsorbable temperature.After sieve adsorpting bed 8 reaches adsorbable temperature, close cold
But air door 21 close the desorption purging inlet valve 7 of the sieve adsorpting bed 8, open the second level inlet valve of the unit
Door 6.
Desorption manipulation in turn is carried out to remaining molecular sieve absorbing unit according to above-mentioned adsorption and desorption, cooling means, to
Make molecular sieve absorbing unit adsorption and desorption, cooling in turn, and then ensures the continuous operation of equipment.
The configuration of the present invention is simple, multiple functional, desorption catalyzing is efficient, keeps lasting fortune using the heat itself generated
Row, energy conservation and environmental protection, reliability are high, and molecular sieve adsorbent equipment continuous high-efficient can be made to run, ensure good adsorption effect, to
Discharge is set to continue up to standard.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (4)
1. a kind of efficient desorption catalyzing device of polluted air from paint booth governing system, which is characterized in that including heat exchanger, catalysis combustion
Reactor and desorption wind turbine are burnt, the desorption of adsorbent equipment is connected by escape pipe with heat exchanger refrigerant inlet, heat exchange
Device refrigerant exit is connected with desorption catalyzing reactor inlet, and desorption catalyzing reactor outlet is connected with heat exchanger heating agent entrance,
The outlet of heat exchanger heating agent is connected by hot wind inlet pipe with desorption fans entrance, and desorption fan outlet passes through hot wind outlet pipe and absorption
The desorption entrance of device is connected, and overflow pipe is arranged in the hot wind outlet pipe, which is connected with purification exhaust pipe, institute
Flow spill valve is provided on the overflow pipe stated, the desorption catalyzing device further includes the new air benefit pipe for being incorporated to hot wind inlet pipe,
The new air, which is mended to be provided on pipe, fills into air door.
2. the efficient desorption catalyzing device of a kind of polluted air from paint booth governing system according to claim 1, which is characterized in that
Further include the cooling air inlet pipe being connected with the desorption entrance of adsorbent equipment, cooling sky is provided on the cooling air inlet pipe
Air valve.
3. the efficient desorption catalyzing device of a kind of polluted air from paint booth governing system according to claim 1 or 2, feature exist
In, further include being incorporated to desorption gas outlet pipe with the inner circulating tube that is connected of desorption fan outlet, the inner circulating tube, it is described interior to follow
Interior loop control valve is provided on endless tube.
4. the efficient desorption catalyzing device of a kind of polluted air from paint booth governing system according to claim 1, the catalysis
Electric heating element is equipped in combustion reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810696660.6A CN108579331A (en) | 2018-06-29 | 2018-06-29 | A kind of efficient desorption catalyzing device of polluted air from paint booth governing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810696660.6A CN108579331A (en) | 2018-06-29 | 2018-06-29 | A kind of efficient desorption catalyzing device of polluted air from paint booth governing system |
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| Publication Number | Publication Date |
|---|---|
| CN108579331A true CN108579331A (en) | 2018-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810696660.6A Withdrawn CN108579331A (en) | 2018-06-29 | 2018-06-29 | A kind of efficient desorption catalyzing device of polluted air from paint booth governing system |
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| CN (1) | CN108579331A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109529530A (en) * | 2019-01-10 | 2019-03-29 | 深圳市天得环境科技有限公司 | Low concentration VOCs gas purge system and method |
-
2018
- 2018-06-29 CN CN201810696660.6A patent/CN108579331A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109529530A (en) * | 2019-01-10 | 2019-03-29 | 深圳市天得环境科技有限公司 | Low concentration VOCs gas purge system and method |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180928 |
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| WW01 | Invention patent application withdrawn after publication |