CN116440596B - Aircraft exhaust treatment system that sprays paint - Google Patents
Aircraft exhaust treatment system that sprays paint Download PDFInfo
- Publication number
- CN116440596B CN116440596B CN202310458645.9A CN202310458645A CN116440596B CN 116440596 B CN116440596 B CN 116440596B CN 202310458645 A CN202310458645 A CN 202310458645A CN 116440596 B CN116440596 B CN 116440596B
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- China
- Prior art keywords
- runner
- molecular sieve
- zeolite molecular
- rotating wheel
- activated carbon
- Prior art date
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- 239000003973 paint Substances 0.000 title claims abstract description 43
- 239000007921 spray Substances 0.000 title claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 175
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 92
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 92
- 239000010457 zeolite Substances 0.000 claims abstract description 92
- 239000002808 molecular sieve Substances 0.000 claims abstract description 91
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims abstract description 91
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 39
- 238000001179 sorption measurement Methods 0.000 claims abstract description 38
- 239000002912 waste gas Substances 0.000 claims abstract description 34
- 239000000126 substance Substances 0.000 claims abstract description 30
- 230000001413 cellular effect Effects 0.000 claims abstract description 24
- 238000009835 boiling Methods 0.000 claims abstract description 12
- 230000000694 effects Effects 0.000 claims abstract description 6
- 238000003795 desorption Methods 0.000 claims description 77
- 239000007789 gas Substances 0.000 claims description 48
- 238000001816 cooling Methods 0.000 claims description 39
- 238000009434 installation Methods 0.000 claims description 23
- 238000012423 maintenance Methods 0.000 claims description 18
- 238000006555 catalytic reaction Methods 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 17
- 230000003197 catalytic effect Effects 0.000 claims description 12
- 238000004140 cleaning Methods 0.000 claims description 9
- 238000005192 partition Methods 0.000 claims description 5
- 239000000779 smoke Substances 0.000 claims 4
- 238000005507 spraying Methods 0.000 abstract description 21
- 238000000034 method Methods 0.000 abstract description 14
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 12
- 239000003546 flue gas Substances 0.000 description 12
- 239000012855 volatile organic compound Substances 0.000 description 9
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 8
- 230000008859 change Effects 0.000 description 8
- 239000000428 dust Substances 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 238000001914 filtration Methods 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 5
- 238000007599 discharging Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- 239000001569 carbon dioxide Substances 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 4
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- -1 polyhexamethylene diisocyanate Polymers 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 230000004224 protection Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- YRKCREAYFQTBPV-UHFFFAOYSA-N acetylacetone Chemical compound CC(=O)CC(C)=O YRKCREAYFQTBPV-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 241001233242 Lontra Species 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-M hexanoate Chemical compound CCCCCC([O-])=O FUZZWVXGSFPDMH-UHFFFAOYSA-M 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000007592 spray painting technique Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0002—Casings; Housings; Frame constructions
- B01D46/0012—In-line filters
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/06—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8678—Removing components of undefined structure
- B01D53/8687—Organic components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/3483—Regenerating or reactivating by thermal treatment not covered by groups B01J20/3441 - B01J20/3475, e.g. by heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0258—Other waste gases from painting equipments or paint drying installations
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Organic Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
The application relates to an aircraft paint spraying waste gas treatment system, which comprises a suction fan, a concentration device, a waste gas treatment device and a discharge device, wherein a pretreatment box body is further arranged between the suction fan and a zeolite molecular sieve, a filter chamber is arranged in the pretreatment box body, and the filter chamber of the pretreatment box body is communicated with the suction fan and the concentration device; the filter chamber of pretreatment box is interior to be dismantled and to be connected with first filter and second filter, pretreatment box is provided with the active carbon adsorption portion that is used for adsorbing high boiling point harmful substance, and active carbon adsorption portion includes a plurality of cellular active carbon, and each cellular active carbon all is located the filter chamber of pretreatment box, and arbitrary cellular active carbon all can take out alone. The method has the effects of improving the treatment efficiency of the waste gas treatment system, saving energy and reducing economic cost.
Description
Technical Field
The application relates to the field of environmental protection equipment, in particular to an aircraft paint spraying exhaust gas treatment system.
Background
Aircraft paint is a material that forms a continuous film on the surface of an object such as an aircraft body, accessory or component. The paint mainly comprises film forming substances, pigments, solvents, auxiliaries and the like. The paint is mainly coated by spraying. The paint after film formation has the functions of corrosion resistance, wear resistance, heat resistance, temperature change resistance, ultraviolet resistance, decoration and the like on an airplane body, accessories or parts. In addition, the paint on the surface of the machine body can also improve the pneumatic smoothness of the machine body, reduce the friction between the machine body and the atmosphere during flying and effectively reduce the fuel consumption; the radar cover and the paint on the radome have the properties of wave transmission, static resistance and the like; some positions of the paint have the performances of skid resistance, fluorescent marks and the like. Paints used for lacquering often contain a large amount of volatile toxic substances, such as acetylacetone, butyl acetate, toluene, xylene, polyhexamethylene diisocyanate, etc. Because different parts of the aircraft achieve different effects, the paint adopted for painting at each position is different, and the harmful gas generated by the paint is not completely the same.
The aircraft paint spraying process is generally divided into primer spraying, finish spraying and marking spraying, wherein the common aircraft primer mainly comprises a mixture of epoxy polyurethane, dimethylbenzene and butanol; the main component of the finishing paint of the airplane is polyurethane paint. The existing aircraft paint spraying exhaust gas treatment system generally uses a high-power fan to uniformly suck the generated exhaust gas into the exhaust gas treatment system in the aircraft paint spraying process, and the methods adopted by the exhaust gas treatment system are mainly a combustion method (mainly a catalytic oxidation method CTO) and an adsorption method (adopting zeolite molecular sieve adsorption), and the exhaust gas generated by paint spraying is adsorbed, desorbed and concentrated by an adsorption device. And the waste gas generated by spray painting is treated by the waste gas treatment system, and is intensively discharged after reaching the environmental protection standard.
For the prior art, the inventor finds that the existing aircraft paint spraying exhaust gas treatment system gathers the harmful gas generated by paint spraying at each part of the aircraft and performs adsorption and desorption through an adsorption device (zeolite molecular sieve) so as to improve the concentration of the harmful gas in the exhaust gas, in order to enable the adsorption device (zeolite molecular sieve) to desorb more thoroughly, the desorption temperature of the adsorption device needs to be set according to the harmful substance with the highest desorption temperature in the exhaust gas (for example, the desorption temperature of polyhexamethylene diisocyanate is 255 ℃ and the desorption temperature of butanone is only 79.6 ℃), in fact, most of the substances are desorbed and do not need to have such high temperature, which causes larger energy waste, and the service life of the adsorption device is shortened due to higher temperature.
Disclosure of Invention
In order to remove harmful substances with larger required desorption temperature difference before the waste gas is adsorbed, desorbed and concentrated, the treatment efficiency of a waste gas treatment system is improved, the energy is saved, and the economic cost is reduced.
The application provides an aircraft exhaust treatment system that sprays paint adopts following technical scheme:
the spray paint exhaust gas treatment system of the aircraft comprises a suction fan, a concentration device, an exhaust gas treatment device and a discharge device, wherein the suction fan drives exhaust gas to be desorbed and concentrated through a pipeline and then discharged through the discharge device after harmful substances in the exhaust gas are treated through the exhaust gas treatment device, a pretreatment box body is further arranged between the suction fan and the zeolite molecular sieve, a filter chamber is arranged in the pretreatment box body, and the filter chamber of the pretreatment box body is communicated with the suction fan and the concentration device; the filter chamber of pretreatment box is interior to be dismantled and to be connected with first filter and second filter, first filter with the cross section setting that the second filter homoenergetic covered the filter chamber, pretreatment box is provided with the active carbon adsorption portion that is used for adsorbing high boiling point harmful substance, and active carbon adsorption portion includes a plurality of cellular active carbon, and each cellular active carbon all is located the filter chamber of pretreatment box, and arbitrary cellular active carbon all can take out alone.
Through adopting above-mentioned technical scheme, when the user uses, inhale the waste gas that the fan will spray paint and produce and inhale along the pipeline, waste gas passes through first filter and second filter in succession, and first filter is arranged in filtering some great dust particles in the waste gas, and the second filter then filters the dust particle of another part volume less, and first filter and second filter prevent this part dust from getting into the system jointly and piling up the jam. And then, the waste gas passes through the activated carbon adsorption part in the pretreatment box body, the activated carbon has a good adsorption effect on substances with higher boiling points, and the harmful substances with higher boiling points in the waste gas are adsorbed by the honeycomb activated carbon, so that the harmful substances with higher boiling points are filtered out before the subsequent adsorption and desorption concentration process, the temperature required by the desorption concentration process is reduced, the energy consumption is reduced, the economic cost is increased, the temperature born by a concentration device is reduced, and the service life of the concentration device is prolonged.
Optionally, the activated carbon adsorption part further comprises a mounting table, the mounting table covers the cross section of the filtering chamber, the mounting table is provided with a plurality of air passages, the mounting table is provided with an activated carbon frame corresponding to each air passage in a sliding manner, and each activated carbon frame can slide along the length direction of the air passage; the honeycomb activated carbon is arranged in each activated carbon frame, and the honeycomb activated carbon arranged in the activated carbon frame can cover the corresponding air passage of the mounting table.
Through adopting above-mentioned technical scheme, when the user uses, the user slides out the active carbon frame, afterwards install cellular active carbon in the active carbon frame, the user only needs to promote the active carbon frame after the installation is accomplished and push into the mount table with the active carbon frame in, and make the air flue setting of cellular active carbon cover mount table, can accomplish the installation of cellular active carbon, after the cellular active carbon in arbitrary air flue adsorbs and reaches the saturation, the user only needs outwards to stimulate the active carbon frame, with the active carbon frame can change the cellular active carbon wherein from the mount table internal sliding, the user can nimble change the cellular active carbon of saturation or damage, need not to change all cellular active carbon once, the waste of cellular active carbon has been reduced, and the cost is saved.
Optionally, the activated carbon adsorption part further comprises a mounting disc, the mounting disc is connected in the filter cavity of the pretreatment box body in a switching mode, and the mounting disc covers the cross section of the filter cavity; the installation plate is radially provided with a plurality of active carbon installation grooves along the self, the active carbon installation grooves penetrate through the installation plate, and each active carbon installation groove of the installation plate is internally provided with the honeycomb active carbon; the mounting opening is formed in the position of the pretreatment box body, corresponding to one side of the mounting plate, in the length direction of the mounting opening, the mounting plate is arranged along the radial direction of the mounting plate, the mounting plate is further connected with a stepping motor, the stepping motor can drive the mounting plate to rotate and enable the activated carbon mounting grooves to be aligned with the mounting opening of the pretreatment box body one by one, and honeycomb activated carbon can be mounted in the activated carbon mounting grooves of the mounting plate along the mounting opening of the pretreatment box body.
Through adopting above-mentioned technical scheme, when the user uses, the user stretches into the mounting groove of mounting disc with cellular active carbon along the mounting opening of pretreatment box, and the user only needs to start step motor after accomplishing the installation of a cellular active carbon, makes step motor drive the mounting disc and rotates, makes the next mounting groove of mounting disc rotate the mounting opening position department of pretreatment box, and the user need not to climb higher height when installing and changing cellular active carbon, also need not to promote cellular active carbon, has reduced the damage in the cellular active carbon installation, also is convenient for the user to install and change cellular active carbon simultaneously.
Optionally, enrichment facility includes concentrated box, connects runner casing, runner frame and zeolite molecular sieve runner in concentrated box, be formed with the working chamber in the runner casing, zeolite molecular sieve runner switching in the runner frame, the runner frame can set up in the working chamber of runner casing, and the runner casing corresponds self working intracavity rigid coupling and has a plurality of baffles, the baffle is divided into desorption chamber, cooling chamber and absorption chamber triplex with the working chamber of runner casing, the absorption chamber of runner casing is linked together with pretreatment box and exhaust apparatus through the pipeline, the desorption chamber of runner casing is linked together with exhaust gas treatment device through the pipeline, the cooling chamber of runner casing has cooling fan through the pipeline intercommunication.
Through adopting above-mentioned technical scheme, when the user uses, after the harmful substance of high boiling point is filtered through active carbon adsorption portion in the pretreatment box, other waste gas is driven by the suction fan and passes through the concentrated box of pipeline entering and the absorption chamber of runner casing, afterwards, waste gas passes through zeolite molecular sieve runner, harmful volatile organic compounds (V0 Cs) in the waste gas are adsorbed by zeolite molecular sieve runner, other harmless substances pass zeolite molecular sieve runner and pass through discharge device and discharge, after the zeolite molecular sieve runner that is located the absorption chamber adsorbs the saturation, zeolite molecular sieve runner rotates and makes saturated region rotate to desorption chamber and carries out high temperature desorption, harmful Volatile Organic Compounds (VOCs) after the desorption is concentrated get into exhaust gas treatment device through the pipeline and handle, zeolite molecular sieve runner after the desorption is accomplished rotates to the cooling chamber position department of runner casing, the cooling fan inhales outside air and blows zeolite molecular sieve runner and cools down it, this region rotates the Volatile Organic Compounds (VOCs) that are adsorbed to the absorption chamber position department of runner casing again along with the rotation of zeolite molecular sieve runner after the cooling is accomplished.
Optionally, one side of the concentrating box body is connected with an adjusting chamber, the adjusting chamber is communicated with the concentrating box body, a maintenance area and a standby area are arranged in the adjusting chamber, the standby area of the adjusting chamber is also internally provided with the rotating wheel frame and the zeolite molecular sieve rotating wheel, the rotating wheel frame in the rotating wheel shell and the zeolite molecular sieve rotating wheel connected with the rotating wheel frame can move into the maintenance area of the adjusting chamber, and the rotating wheel frame in the maintenance area of the adjusting chamber and the zeolite molecular sieve rotating wheel connected with the rotating wheel frame can move into the working cavity of the rotating wheel shell.
Through adopting above-mentioned technical scheme, when the user uses, when the zeolite molecular sieve runner that is located in the runner casing appears damaging and needs the maintenance, the user removes the runner frame and shifts out the zeolite molecular sieve runner from the runner casing and move into the adjustment room, make the runner frame drive the zeolite molecular sieve runner that damages remove the maintenance district of adjustment room, afterwards the user removes the runner frame and the zeolite molecular sieve runner that are located in the reserve district of adjustment room into the working chamber of runner casing, can be quick the change of realization zeolite molecular sieve runner, make aircraft spray paint exhaust treatment system can resume work rapidly, reduce the down time of exhaust treatment system that the maintenance zeolite molecular sieve runner leads to, improve work efficiency.
Optionally, the runner casing is connected with cleaning element, cleaning element is located the cooling chamber of runner casing, cleaning element includes the mounting bracket, switches in the brush roll of mounting bracket, actuating lever and connect in the power motor of runner casing, mounting bracket one end articulates in the runner casing, the mounting bracket with the length direction of brush roll is along setting up the radial setting of zeolite molecular sieve runner in the runner casing, the brush roll can contradict in setting up the zeolite molecular sieve runner in the runner casing, the spread groove has been seted up to the mounting bracket, actuating lever one end is connected with the connecting rod, the connecting rod slides and locates in the spread groove of mounting bracket, actuating lever one end be connected in power motor, power motor passes through actuating lever, connecting rod, mounting bracket drive brush roll and the reciprocal swing of hinge position department of mounting bracket and runner casing.
Through adopting above-mentioned technical scheme, when the user uses, thereby power motor drives the actuating lever and rotates and drive the connecting rod and slide in the spread groove of mounting bracket, the connecting rod is along with actuating lever rotation in-process promotion mounting bracket is around self with the articulated position department reciprocal swing of installation casing, thereby the brush roller of switching in the installation casing is at zeolite molecular sieve runner surface circulation brush, the cooling wind of cooperation runner casing cooling intracavity, clear away the impurity of attaching on zeolite molecular sieve runner, reduce the jam and the damage of zeolite molecular sieve runner that cause because the desorption is incomplete, the life of extension zeolite molecular sieve runner.
Optionally, zeolite molecular sieve runner includes the assembly jig, the assembly jig switching in the runner frame, the assembly jig is formed with a plurality of assembly chambeies, and is a plurality of the assembly chambeies are the circumference array setting around the assembly jig center, every the assembly intracavity all is provided with fan-shaped zeolite molecular sieve board, and the assembly jig corresponds every assembly chambeies position department of self all and has the end to block up through bolted connection, the end is blocked up and can be contradicted in zeolite molecular sieve board.
Through adopting above-mentioned technical scheme, when the user uses, zeolite molecular sieve runner has a plurality of zeolite molecular sieve to assemble through the assembly jig and forms, and when arbitrary zeolite molecular sieve desorption did not thoroughly take place to block up or damage, the user can be through the end of corresponding assembly chamber position department to block up and tear down to tear down corresponding zeolite molecular sieve, need not to change whole zeolite molecular sieve runner, reduce cost of maintenance, also improve maintenance speed simultaneously.
Optionally, the exhaust gas treatment device includes the catalytic reaction case, connects in the heater of catalytic reaction incasement, connects in catalytic bed and the flue gas heat exchanger of catalytic reaction incasement, catalytic reaction case both sides are connected with input pipeline and output pipeline respectively, input pipeline intercommunication in the desorption chamber of runner casing, output pipeline intercommunication in discharging device, the flue gas heat exchanger is connected in output pipeline, and the flue gas heat exchanger still is connected with desorption pipeline, desorption pipeline intercommunication is in the desorption chamber of runner casing, and the flue gas heat exchanger is with the heat transfer of the high temperature gas in the output pipeline to in the desorption pipeline.
Through adopting above-mentioned technical scheme, when the user uses, waste gas input pipeline after enrichment facility desorption concentration gets into catalytic reaction case, through the catalytic bed after the heater heats, react harmful Volatile Organic Compounds (VOCs) and produce harmless carbon dioxide and water under the catalyst effect, finally discharge through discharging device, because whole reaction needs higher reaction temperature, the exhaust gas after the reaction has higher temperature after accomplishing, the gas after the reaction passes through the flue gas heat exchanger in entering discharging device through the output pipeline in-process, the flue gas heat exchanger is with the heat transfer of gas after the reaction to desorption pipeline, heat the gas in the desorption pipeline, make the gas heating in the desorption pipeline to desorption temperature, thereby realize the cyclic utilization of heat energy, improve the utilization efficiency of heat energy, reduce the energy consumption of spraying paint exhaust treatment system, economic cost is saved.
Drawings
FIG. 1 is a schematic overall structure of a first embodiment of the present application;
FIG. 2 is a top view of the overall structure of the first embodiment of the present application;
FIG. 3 is a schematic view of a pretreatment tank according to the first embodiment of the present application;
FIG. 4 is a cross-sectional view of a pretreatment tank according to an embodiment of the present application;
FIG. 5 is a schematic view of a concentrating tank according to a first embodiment of the present disclosure;
FIG. 6 is a cross-sectional view of a rotor housing structure according to an embodiment of the present application;
FIG. 7 is a cross-sectional view of a mounting structure according to one embodiment of the present application;
FIG. 8 is a schematic illustration of a zeolite molecular sieve rotor configuration in accordance with one embodiment of the present application;
FIG. 9 is a schematic view of an assembly frame structure according to the first embodiment of the present application;
FIG. 10 is a schematic view showing the construction of an exhaust gas treatment device according to the first embodiment of the present application;
FIG. 11 is a cross-sectional view of a flue gas heat exchanger according to an embodiment of the present application;
FIG. 12 is a schematic view of a pretreatment tank according to a second embodiment of the present application;
fig. 13 is a sectional view of a mounting plate structure according to a second embodiment of the present application.
Reference numerals illustrate: 1. a pretreatment box body; 11. a first filter; 12. a second filter; 13. a filtration chamber; 2. a concentrating device; 21. concentrating the box body; 22. a rotor housing; 221. a working chamber; 222. an adsorption chamber; 223. a desorption chamber; 224. a cooling chamber; 23. a rotating wheel frame; 24. zeolite molecular sieve wheel; 25. a cleaning assembly; 251. a mounting frame; 252. a brush roller; 253. a driving rod; 254. a power motor; 255. a connecting rod; 256. a connecting groove; 26. a first chute; 3. a suction fan; 31. a suction line; 4. an exhaust gas treatment device; 41. a catalytic reaction box; 42. an input pipeline; 43. an output line; 44. a desorption fan; 45. a heater; 46. a catalytic bed; 47. a flue gas heat exchanger; 5. a chimney; 6. an activated carbon adsorption unit; 61. a mounting table; 62. an airway; 63. an activated carbon holder; 631. a sealing plate; 632. a handle; 64. honeycomb activated carbon; 65. a mounting plate; 66. an active carbon installation groove; 67. a stepping motor; 68. a mounting port; 681. a support slide plate; 69. sealing the door; 691. a sealing bump; 7. a cooling pipeline; 71. a dust-proof screen; 72. a cooling fan; 73. a desorption pipeline; 74. a preheater; 8. an adjustment chamber; 81. a second chute; 83. a maintenance area; 84. a spare area; 86. an assembly frame; 87. an assembly chamber; 88. zeolite molecular sieve plates; 89. and (5) end blocking.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-13.
Embodiment one:
an embodiment of the application discloses an aircraft exhaust treatment system that sprays paint, refer to fig. 1 and 2, including pretreatment box 1, enrichment facility 2, set up suction fan 3, exhaust treatment device 4 and the exhaust apparatus who is connected in exhaust treatment device 4 and enrichment facility 2 between enrichment facility 2 and pretreatment box 1. The pretreatment box body 1, the concentration device 2, the suction fan 3, the waste gas treatment device 4 and the discharge device are all communicated with each other. The waste gas that the spray paint produced gets into pretreatment box 1 under the traction of suction fan 3 and filters the harmful substance of its high boiling point, later gets into enrichment facility 2 and adsorbs, and the gaseous discharge of discharging device is passed through after filtering harmful substance, and harmful substance enters into exhaust treatment device 4 after desorption concentration, forms harmless carbon dioxide and water with waste gas oxidation through exhaust treatment device 4, later discharges external environment through discharging device.
Referring to fig. 2-4, one side of the pretreatment tank 1 is connected with a suction pipeline 31, a filter chamber 13 is arranged in the pretreatment tank 1, the suction pipeline 31 is communicated with the filter chamber 13 of the pretreatment tank 1, waste gas is led by a suction fan 3 to enter the filter chamber 13 of the pretreatment tank 1 through the suction pipeline 31, a first filter 11 and a second filter 12 are slidably connected in the filter chamber 13 of the pretreatment tank 1, the diameter of a filter hole of the first filter 11 is larger than that of a filter hole of the second filter 12, the first filter 11 is a filter reaching the G4 standard, and the second filter 12 is a filter reaching the F7 standard. The first filter 11 is slidably connected to the pretreatment tank 1 at a position close to the suction line 31, and the second filter 12 is slidably connected to a side of the first filter 11 remote from the suction line 31. The first filter 11 and the second filter 12 can each be arranged to cover the cross section of the filter chamber 13, and the first filter 11 and the second filter 12 can each be slid out of the pre-treatment tank 1. The side, which corresponds to the second filter 12 and is far away from the first filter 11, of the filter chamber 13 of the pretreatment tank body 1 is provided with an activated carbon adsorption part 6 for filtering out high-boiling-point harmful substances, and the activated carbon adsorption part 6 comprises an installation table 61 installed in the pretreatment tank body 1, wherein the installation table 61 covers the cross section of the filter chamber 13. Four air passages 62 are formed in the mounting table 61, the four air passages 62 are arranged in an array along the height direction of the mounting table 61, and waste gas generated by paint spraying can pass through the mounting table 61 through the air passages 62. Three activated carbon frames 63 are slidably arranged in each air passage 62 of the mounting table 61, which activated carbon frames 63 are slidably arranged in the same air passage 62 are arranged in an array along the width direction of the mounting table 61, and the activated carbon frames 63 can slide in the air passages 62 along the length direction of the mounting table 61. Each activated carbon frame 63 is internally provided with a honeycomb activated carbon 64 through a screw, the honeycomb activated carbon 64 is in a cuboid shape, each honeycomb activated carbon 64 can cover the section of the corresponding air passage 62 of the mounting table 61, and the honeycomb activated carbon 64 plays a role in adsorbing and filtering harmful substances with high boiling point.
Referring to fig. 2-4, the position of the pretreatment tank 1 corresponding to each activated carbon rack 63 is provided with a mounting opening 68, the activated carbon rack 63 can be moved out of the pretreatment tank 1 through the corresponding mounting opening 68, one end of each activated carbon rack 63 is fixedly connected with a flexible sealing plate 631, the sealing plates 631 can be abutted against the pretreatment tank 1 and cover the corresponding mounting opening 68 of the pretreatment tank 1, and one side of each sealing plate 631 far away from the pretreatment tank 1 is fixedly connected with a handle 632.
When the pretreatment box is used by a user, waste gas generated by paint spraying enters the filter chamber 13 of the pretreatment box body 1 through the suction pipeline 31, the waste gas passes through the first filter 11 and the second filter 12 in the filter chamber 13 of the pretreatment box body 1, large-particle dust in the waste gas is filtered through the first filter 11, smaller dust in the waste gas is filtered through the second filter 12, and accumulation of the dust in the subsequent activated carbon adsorption part 6 is reduced through double-layer filtration, so that the honeycomb activated carbon 64 is prevented from being blocked. The exhaust gas after passing through the second filter 12 then passes through the mounting table 61 through the plurality of air passages 62, and organic matters with high boiling point (such as polyhexamethylene diisocyanate) in the exhaust gas are adsorbed by the honeycomb activated carbon 64 in the process, so that harmful matters with higher boiling point in the exhaust gas are filtered, the desorption needs of other harmful matters can be met without reaching higher desorption temperature in the subsequent desorption concentration process, the temperature needs in the desorption process are reduced, the energy consumption is reduced, and the use cost is reduced. When any honeycomb activated carbon 64 is adsorbed to be saturated, the user only needs to pull the handle 632 to drive the activated carbon rack 63 to slide out from the mounting table 61 through the mounting opening 68 of the pretreatment box 1, so that the honeycomb activated carbon 64 mounted in the corresponding activated carbon rack 63 can be replaced, and the user does not need to replace all the honeycomb activated carbon 64 at one time, thereby reducing the use cost. The sealing plate 631 can serve to seal the gap between the activated carbon holder 63 and the pretreatment tank 1, preventing the escape of harmful gases.
Referring to fig. 2, 5 and 6, the air inlet of the suction fan 3 is connected to the side of the pretreatment tank 1 far from the suction pipeline 31 through a pipeline, and the air outlet of the suction fan 3 is connected to the concentrating device 2 through a pipeline. The concentrating device 2 comprises a concentrating box body 21 and a rotating wheel shell 22 arranged in the concentrating box body 21 through bolts, a working cavity 221 is formed in the rotating wheel shell 22, a plurality of partition plates are fixedly connected to the inner side of the rotating wheel shell 22, and the working cavity 221 of the rotating wheel shell 22 is partitioned by the partition plates to form an adsorption cavity 222, a desorption cavity 223 and a cooling cavity 224. The adsorption cavity 222 of the runner casing 22 is communicated with the suction fan 3 through a pipeline, the suction fan 3 can draw the waste gas passing through the pretreatment box 1 into the adsorption cavity 222 of the runner casing 22, and the adsorption cavity 222 of the runner casing 22 is also communicated with the discharge device through a pipeline. The cooling cavity 224 position department rigid coupling of runner casing 22 has cooling pipeline 7, and cooling pipeline 7 is linked together with the cooling cavity 224 of runner casing 22, and cooling pipeline 7 one end passes concentrated box 21 and communicates in external environment, and the rigid coupling has dustproof otter board 71 in the cooling pipeline 7, and cooling pipeline 7 is connected in the one end rigid coupling of concentrated box 21 has cooling fan 72, and cooling pipeline 7 communicates in cooling fan 72's air intake. The air outlet of cooling fan 72 communicates and has desorption pipeline 73, and desorption pipeline 73 is connected with pre-heater 74, and desorption pipeline 73 is kept away from cooling fan 72 one end and is communicated in the desorption chamber 223 of runner casing 22. The position of the side of the runner shell 22, which is far away from the desorption pipeline 73 and corresponds to the self-desorption cavity 223, is communicated with the exhaust gas treatment device 4 through a pipeline.
Referring to fig. 5 to 7, a first chute 26 is formed at the bottom of the concentrating box 21 corresponding to the middle position of the runner housing 22, and the length direction of the first chute 26 is along the length direction of the runner housing 22. The runner casing 22 is provided with a runner frame 23 in a working chamber 221 thereof, the runner frame 23 is slidably disposed in a first chute 26 of the concentrating tank 21, the runner frame 23 is slidably disposed along a length direction of the first chute 26, and the runner frame 23 is fixable in the working chamber 221 of the runner casing 22 by bolts. The rotating wheel frame 23 is connected with the zeolite molecular sieve rotating wheel 24 in a switching way, and when the rotating wheel frame 23 is fixed in the working cavity 221 of the rotating wheel shell 22 through bolts, the partition plates can be abutted against two sides of the zeolite molecular sieve rotating wheel 24. The cleaning assembly 25 is connected to the self-cooling chamber 224 of the wheel housing 22, and the cleaning assembly 25 includes a mounting frame 251, a brush roller 252 connected to the mounting frame 251, a driving rod 253, and a power motor 254 connected to the wheel housing 22. One end of the mounting frame 251 is hinged to the middle position of the rotating wheel shell 22, the length directions of the mounting frame 251 and the brush roller 252 are arranged in the same direction, the length directions of the mounting frame 251 and the brush roller 252 are both arranged along the radial direction of the zeolite molecular sieve rotating wheel 24, and the brush roller 252 can be arranged on the surface of the zeolite molecular sieve rotating wheel 24 in a propping mode. The power motor 254 is fixedly connected to the position of the runner housing 22 corresponding to the self cooling cavity 224, an output shaft of the power motor 254 passes through the runner housing 22, the output shaft of the power motor 254 is located at the position of the mounting frame 251 corresponding to the self middle position along the length direction of the power motor, the driving rod 253 is fixedly connected to the position of the output shaft of the power motor 254 passing through the runner housing 22, a connecting rod 255 is fixedly connected to one side of the driving rod 253 close to the mounting frame 251, and the connecting rod 255 is located at the position of the driving rod 253 far away from the output shaft of the power motor 254. A connecting groove 256 is formed in one side of the mounting frame 251, a connecting rod 255 is slidably connected in the connecting groove 256 of the mounting frame 251, and the power motor 254 drives the brush roller 252 to swing back and forth around the hinge position of the mounting frame 251 and the rotating wheel shell 22 through the driving rod 253, the connecting rod 255 and the mounting frame 251 so as to clean the surface of the zeolite molecular sieve rotating wheel 24.
Referring to fig. 5, 8 and 9, an adjusting chamber 8 is fixedly connected to one side of the concentrating box 21, the adjusting chamber 8 is communicated with the concentrating box 21, a maintenance area 83 and a standby area 84 are arranged in the adjusting chamber 8, a second sliding groove 81 is formed in the bottom of the adjusting chamber 8, the second sliding groove 81 is communicated with the maintenance area 83 and the standby area 84 of the adjusting chamber 8, a first sliding groove 26 of the concentrating box 21 is communicated with the second sliding groove 81 of the adjusting chamber 8, the rotating wheel frame 23 can slide along the length direction of the first sliding groove 26 to enter the second sliding groove 81, and also can slide from the second sliding groove 81 to the first sliding groove 26, and the rotating wheel frame 23 can slide along the length direction of the first sliding groove 26 to enter the standby area 84 or the maintenance area 83 of the adjusting chamber 8. The same rotating wheel frame 23 as the rotating wheel frame 23 is also arranged in the standby area 84 of the adjusting chamber 8, the rotating wheel frame 23 in the standby area 84 of the adjusting chamber 8 is connected with the second sliding groove 81 in a sliding way, and the rotating wheel frame 23 in the standby area 84 is also connected with the zeolite molecular sieve rotating wheel 24 in a rotating way. Each rotating wheel frame 23 is provided with a driving motor (not shown) for driving the zeolite molecular sieve rotating wheel 24 to rotate around the rotating wheel frame 23 connected with the zeolite molecular sieve rotating wheel.
Referring to fig. 8 and 9, zeolite molecular sieve runner 24 includes assembly jig 86, and assembly jig 86 is discoid, and assembly jig 86 switching is in runner frame 23, and assembly jig 86 is formed with four assembly chambeies 87, and four assembly chambeies 87 are circumference array setting around the assembly jig 86 center, every all be provided with fan-shaped zeolite molecular sieve 88 in the assembly chambeies 87, zeolite molecular sieve 88 can cover the assembly chambeies 87 setting of assembly jig 86, and assembly jig 86 one side corresponds every assembly chambeies 87 position department all through bolted connection end stifled 89, and end stifled 89 sets up along the profile of assembly chambeies 87, and end stifled 89 can contradict in zeolite molecular sieve 88 one side and play the effect of fixed zeolite molecular sieve 88.
Referring to fig. 2, 10 and 11, the exhaust gas treatment device 4 includes a catalytic reaction box 41, two sides of the catalytic reaction box 41 are fixedly connected with an input pipeline 42 and an output pipeline 43 respectively, one end of the input pipeline 42 is fixedly connected with a desorption fan 44, the input pipeline 42 is communicated with an air outlet of the desorption fan 44, an air inlet of the desorption fan 44 is communicated with a desorption cavity 223 of the runner shell 22 through a pipeline, and the desorption fan 44 can pull the exhaust gas desorbed and concentrated through the zeolite molecular sieve runner 24 into the input pipeline 42 and into the catalytic reaction box 41 along the input pipeline 42. The other end of the output line 43 communicates with a discharge device, which is a chimney 5. The catalytic reaction box 41 is fixedly connected with a heater 45, and the heater 45 is an explosion-proof electric heater 45. The heater 45 is fixedly connected to the catalytic reactor at a position close to the input pipeline 42. A catalytic bed 46 is fixedly connected to the position, away from the input pipeline 42, of the catalytic reaction tank 41 corresponding to the heater 45, a catalyst is attached to the catalytic bed 46, high-concentration harmful gas entering the catalytic reaction tank 41 through the input pipeline 42 is heated to a higher temperature by the heater 45, then passes through the catalytic bed 46, and harmful Substances (VOCs) in the gas are oxidized to generate harmless carbon dioxide and water under the action of the catalyst, and then enter the output pipeline 43. The input pipeline 42 is connected with the flue gas heat exchanger 47, the desorption pipeline 73 is also connected with the flue gas heat exchanger 47, the flue gas heat exchanger 47 transfers part of heat of high-temperature gas subjected to high-temperature catalytic oxidation in the output pipeline 43 into the desorption pipeline 73, and the air in the desorption pipeline 73 is heated by matching with the preheater 74, so that the air in the desorption pipeline 73 reaches the desorption temperature as soon as possible, and the utilization rate of energy sources is improved.
The implementation principle of the paint spraying exhaust gas treatment system of the aircraft disclosed in the embodiment of the application is as follows: when a user uses the paint spraying device, harmful waste gas generated by the paint spraying of the airplane enters the pretreatment box body 1 through the suction pipeline 31 of the pretreatment box body 1 under the traction of the suction fan 3. The harmful exhaust gas passes through the first filter 11 and the second filter 12 in sequence, so that dust particles in the harmful exhaust gas are filtered out, and the subsequent honeycomb activated carbon 64 is prevented from being blocked. The harmful waste gas after dust particles are filtered out is adsorbed with high-boiling-point harmful substances in the harmful waste gas through a plurality of air passages 62 of the mounting table 61 by honeycomb activated carbon 64, and the temperature required in the subsequent desorption stage after a small amount of high-boiling-point harmful substances (mainly polyhexamethylene diisocyanate) are filtered out only needs to meet the desorption temperature of most harmful substances, so that the energy waste is reduced and the economic cost is reduced. The waste gas filtered out high boiling point harmful substances enters the suction fan 3 and is drawn by the suction fan 3 to enter the adsorption cavity 222 of the runner housing 22 in the concentration box 21 along the pipeline and pass through the zeolite molecular sieve runner 24 positioned in the adsorption cavity 222, the harmful Substances (VOCs) in the waste gas are adsorbed by the zeolite molecular sieve runner 24, and other harmless gases are discharged along the chimney 5 through the pipeline.
As the zeolite molecular sieve runner 24 in the adsorption cavity 222 is adsorbed to be close to saturation, the driving motor (not shown) drives the zeolite molecular sieve runner 24 to rotate, so that the zeolite molecular sieve runner 24 is rotated to the desorption cavity 223 of the runner housing 22 in the region close to adsorption saturation, air in the desorption pipeline 73 is heated by the preheater 74 and then blown to the zeolite molecular sieve runner 24 in the desorption cavity 223 of the runner housing 22 along the desorption pipeline 73 under the traction of the cooling fan 72 and the desorption fan 44, so that the harmful substances originally adsorbed on the zeolite molecular sieve runner 24 begin to be desorbed at a high temperature, the concentration of the harmful substances after high temperature desorption becomes high, the harmful substances enter the catalytic reaction box 41 along the input pipeline 42 under the traction of the desorption fan 44 and are heated to a higher temperature by the heater 45, pass through the catalytic bed 46, and the oxidation reaction occurs under the action of the catalyst on the catalytic bed 46 to oxidize the harmful substances into carbon dioxide and water, and then the harmful substances are discharged from the chimney 5 along the output pipeline 43. Because the temperature of the reacted gas is higher, the harmless gas after the reaction passes through the flue gas heat exchanger 47 in the process of being discharged through the output pipeline 43, and transfers heat to the desorption pipeline 73, and the air in the desorption pipeline 73 is heated by matching with the preheater 74, so that the temperature of the air in the desorption pipeline 73 reaches the required desorption temperature, the energy consumed by the heating of the preheater 74 is reduced, the utilization rate of the energy is improved, and the economic cost is reduced.
The zeolite molecular sieve runner 24 after desorption is completed can be used continuously after cooling is required due to higher temperature, and a driving motor (not shown in the figure) drives the zeolite molecular sieve runner 24 to rotate, so that the region of adsorption saturation of the zeolite molecular sieve runner 24 is transferred into the desorption cavity 223 of the runner shell 22, and the region of desorption completion of the zeolite molecular sieve runner 24 is also rotated into the cooling cavity 224. The cooling fan 72 draws air from the external environment and blows the air into the cooling cavity 224 through the cooling pipeline 7 to cool the zeolite molecular sieve runner 24 at high temperature, and meanwhile, the power motor 254 drives the brush roller 252 to swing back and forth around the hinged position of the mounting frame 251 and the runner shell 22 through the driving rod 253, the connecting rod 255 and the mounting frame 251 so as to clean the surface of the zeolite molecular sieve runner 24. The air flow blown out by the cooling fan 72 passes through the zeolite molecular sieve runner 24 and is drawn into the desorption pipeline 73 by the desorption fan 44, and is used for desorption of the zeolite molecular sieve runner 24 after being heated.
When a certain area of the zeolite molecular sieve rotor 24 is damaged, a user can unscrew bolts connecting the rotor frame 23 and the concentrating box 21, then slide the damaged zeolite molecular sieve rotor 24 into the second sliding groove 81 along the first sliding groove 26 through the rotor frame 23, then slide to the maintenance area 83 of the adjusting chamber 8 along the second sliding groove 81, and the user can maintain and replace the damaged zeolite molecular sieve rotor 24 in the maintenance area 83. Meanwhile, the zeolite molecular sieve runner 24 in the standby area 84 slides into the first chute 26 along the second chute 81 through the runner frame 23 by a user, then slides into the working cavity 221 of the runner shell 22, and then the runner frame 23 is fixed through bolts, so that the paint spraying exhaust gas treatment system can be continuously operated, the time occupied by shutdown maintenance is reduced, and the working efficiency is improved. In the maintenance area 83 of the conditioning chamber 8, a user can remove the zeolite molecular sieve plate 88 installed therein for replacement by removing the end plugs 89 from the damaged area of the zeolite molecular sieve wheel 24. The user only changes the zeolite molecular sieve plate 88 in the damaged area when some parts of the zeolite molecular sieve wheel 24 are damaged, and does not need to change the whole zeolite molecular sieve wheel 24, thereby further reducing the replacement cost and improving the economic value.
Embodiment two:
the second embodiment of the application discloses an aircraft paint spraying exhaust gas treatment system, which is different from the first embodiment in that, referring to fig. 12 and 13, the activated carbon adsorption portion 6 includes a mounting plate 65, the mounting plate 65 is switched into the filter chamber 13 of the pretreatment tank 1, and the mounting plate 65 covers the filter chamber 13 of the pretreatment tank 1. Eight activated carbon mounting grooves 66 are formed in the mounting plate 65, and the length direction of the activated carbon mounting grooves 66 is set along the radial direction of the mounting plate 65. The honeycomb activated carbon 64 is installed in each activated carbon installation groove 66 of the installation plate 65, and the honeycomb activated carbon 64 passing through each activated carbon installation groove 66 of the installation plate 65 from the suction line 31 of the pretreatment tank 1 into the pretreatment tank passes through the installation plate 65. The step motor 67 is installed at the position of the pretreatment box body 1 corresponding to the lower position of the mounting plate 65, an output shaft of the step motor 67 is connected to the mounting plate 65 through a belt pulley and a belt, and the step motor 67 can drive the mounting plate 65 to rotate. The mounting opening 68 is formed in the position, corresponding to the mounting plate 65, of one side of the pretreatment tank body 1, the support sliding plate 681 is fixedly connected to the position, corresponding to the mounting opening 68, of the pretreatment tank body 1, and the support sliding plate 681 is located below the mounting opening 68 of the pretreatment tank body 1. The mounting plate 65 is driven to rotate by the stepping motor 67, so that each activated carbon mounting groove 66 can be aligned with the mounting opening 68 of the treatment box body, and the honeycomb activated carbon 64 can slide into the activated carbon mounting groove 66 of the mounting plate 65 through the mounting opening 68 of the pretreatment box body 1. The sealing door 69 is hinged at the position of the pretreatment box body 1 corresponding to the mounting opening 68, an elastic sealing lug 691 is fixedly connected to one side of the sealing door 69, and the sealing lug 691 can be clamped in the mounting opening 68 of the pretreatment box body 1 to play a role in sealing the mounting opening 68 of the pretreatment box body 1.
The implementation principle of the paint spraying hall of the airplane disclosed in the second embodiment of the application is as follows: the user opens the sealing door 69, stretches the honeycomb activated carbon 64 into the mounting groove of the mounting plate 65 along the mounting opening 68 of the pretreatment box 1, and after the installation of one honeycomb activated carbon 64 is completed, the user only needs to start the stepping motor 67, so that the stepping motor 67 drives the mounting plate 65 to rotate, the next activated carbon mounting groove 66 of the mounting plate 65 rotates to the position of the mounting opening 68 of the pretreatment box 1, and all the honeycomb activated carbon 64 is installed by analogy. The user does not need to climb to a higher height when installing and replacing the honeycomb activated carbon 64, does not need to lift the honeycomb activated carbon 64, reduces the damage in the installation process of the honeycomb activated carbon 64, and is convenient for the user to install and replace the honeycomb activated carbon 64.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (6)
1. The utility model provides an aircraft exhaust treatment system that sprays paint, includes suction fan (3), enrichment facility (2), exhaust treatment device (4) and exhaust apparatus, and suction fan (3) drive waste gas and pass through exhaust apparatus discharge after enrichment facility (2) through the pipeline, and the waste gas after desorption is concentrated is discharged through exhaust apparatus after exhaust treatment device (4) handle harmful substance wherein, its characterized in that: a pretreatment box body (1) is further arranged between the suction fan (3) and the concentration device (2), a filter chamber (13) is formed in the pretreatment box body (1), and the filter chamber (13) of the pretreatment box body (1) is communicated with the suction fan (3) and the concentration device (2); the utility model discloses a filter chamber (13) of pretreatment box (1) can dismantle in and be connected with first filter (11) and second filter (12), first filter (11) with the cross section setting that second filter (12) homoenergetic covers filter chamber (13), pretreatment box (1) is provided with activated carbon adsorption part (6) that are used for adsorbing high boiling point harmful substance, and activated carbon adsorption part (6) include a plurality of cellular activated carbon (64), and each cellular activated carbon (64) all is located in filter chamber (13) of pretreatment box (1), and arbitrary cellular activated carbon (64) all can take out alone, and activated carbon adsorption part (6) are including mounting disc (65), and mounting disc (65) switching is in filter chamber (13) of pretreatment box (1), and mounting disc (65) cover filter chamber (13) of pretreatment box (1) set up, and eight activated carbon mounting grooves (66) have been seted up to mounting disc (65), and the length of activated carbon mounting groove (66) corresponds in the radial direction of mounting disc (65) of the installation box (65) and installs the radial direction (65) of the corresponding activated carbon (65) of the installation disc (65), the output shaft of step motor (67) passes through belt pulley and belt to be connected in mounting disc (65), step motor (67) can drive mounting disc (65) and rotate, install mouth (68) have been seted up to the corresponding mounting disc (65) position in pretreatment box (1) one side, the fixedly connected with support slide (681) of corresponding self install mouth (68) position department, support slide (681) are located the below position of the install mouth (68) of pretreatment box (1), mounting disc (65) drive through step motor (67) and rotate, can make every active carbon mounting groove (66) all can align in the install mouth (68) of treatment box setting, cellular active carbon (64) can slide in entering mounting disc (65) active carbon mounting groove (66) through install mouth (68) of pretreatment box (1), the fixedly connected with sealing door (69) of corresponding self install mouth (68) position department of pretreatment box (1), sealing door (69) one side fixedly connected with has elastic sealing lug (691), sealing lug (691) can play the effect of installing (68) in pretreatment box (1).
2. An aircraft spray paint exhaust treatment system according to claim 1, wherein: the concentrating device (2) comprises a concentrating box body (21), a rotating wheel shell (22) connected in the concentrating box body (21), a rotating wheel frame (23) and a zeolite molecular sieve rotating wheel (24), wherein a working cavity (221) is formed in the rotating wheel shell (22), the zeolite molecular sieve rotating wheel (24) is connected to the rotating wheel frame (23) in a switching mode, the rotating wheel frame (23) can be arranged in the working cavity (221) of the rotating wheel shell (22), a plurality of partition boards are fixedly connected in the rotating wheel shell (22) corresponding to the working cavity (221), the partition boards divide the working cavity (221) of the rotating wheel shell (22) into a desorption cavity (223), a cooling cavity (224) and an adsorption cavity (222), the adsorption cavity (222) of the rotating wheel shell (22) is communicated with the pretreatment box body (1) and the exhaust device through pipelines, and the cooling cavity (224) of the rotating wheel shell (22) is communicated with the exhaust gas treatment device (4) through pipelines, and the cooling cavity (224) of the rotating wheel shell (22) is communicated with the cooling fan (72) through the pipelines.
3. An aircraft spray paint exhaust treatment system according to claim 2, wherein: the utility model discloses a zeolite molecular sieve system, including concentrated box (21), rotor frame (23), zeolite molecular sieve runner (24), control room (8) are connected with one side of concentrated box (21), control room (8) with concentrated box (21) are linked together, are provided with maintenance district (83) and reserve district (84) in control room (8), second spout (81) have been seted up to control room (8) bottom, second spout (81) with first spout (26) are linked together, also be provided with above-mentioned rotor frame (23) and above-mentioned zeolite molecular sieve runner (24) in reserve district (84) of control room (8), zeolite molecular sieve runner (23) in runner housing (22) and zeolite runner (24) that are connected to this rotor frame (23) can get into control district (83) along control district (83), the runner frame (23) in the maintenance area (83) of the adjusting chamber (8) and the zeolite molecular sieve runner (24) connected with the runner frame (23) can move into the working cavity (221) of the runner shell (22) along the chute.
4. An aircraft spray paint exhaust treatment system according to claim 3, wherein: the utility model provides a cleaning device, including runner casing (22), cleaning assembly (25) are located cooling chamber (224) of runner casing (22), cleaning assembly (25) include mounting bracket (251), switching in brush roll (252), actuating lever (253) of mounting bracket (251) and connect in power motor (254) of runner casing (22), mounting bracket (251) one end articulates in runner casing (22), mounting bracket (251) with the length direction of brush roll (252) is along setting up the radial setting of zeolite molecular sieve runner (24) in runner casing (22), brush roll (252) can conflict in zeolite molecular sieve runner (24) that set up in runner casing (22), connecting groove (256) have been seted up to mounting bracket (251), actuating lever (253) one end is connected with connecting rod (255), connecting rod (255) slide locate in connecting groove (253) of mounting bracket (251), actuating lever (254) one end be connected in power motor (254), through actuating lever (253), actuating lever (252) drive connecting rod (252) and swing position around runner (252) the reciprocating roller (252) around connecting rod (252).
5. An aircraft spray paint exhaust treatment system according to claim 4, wherein: zeolite molecular sieve runner (24) include assembly jig (86), assembly jig (86) switching in runner frame (23), assembly jig (86) are formed with a plurality of assembly chambeies (87), a plurality of assembly chambeies (87) are circumference array setting around assembly jig (86) center, every all be provided with fan-shaped zeolite molecular sieve board (88) in assembly chambeies (87), assembly jig (86) correspond every assembly chambeies (87) position department all have end to block up (89) through bolted connection, end block up (89) can contradict in zeolite molecular sieve board (88).
6. An aircraft spray paint exhaust treatment system according to claim 5, wherein: the waste gas treatment device (4) comprises a catalytic reaction box (41), a heater (45) connected in the catalytic reaction box (41), a catalytic bed (46) connected in the catalytic reaction box (41) and a smoke heat exchanger (47), wherein two sides of the catalytic reaction box (41) are respectively connected with an input pipeline (42) and an output pipeline (43), the input pipeline (42) is communicated with a desorption cavity (223) of the rotating wheel shell (22), the output pipeline (43) is communicated with the exhaust device, the smoke heat exchanger (47) is connected with the output pipeline (43), the smoke heat exchanger (47) is also connected with a desorption pipeline (73), the desorption pipeline (73) is communicated with the desorption cavity (223) of the rotating wheel shell (22), and the smoke heat exchanger (47) is used for transferring heat of gas in the output pipeline (43) into the desorption pipeline (73).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310458645.9A CN116440596B (en) | 2023-04-25 | 2023-04-25 | Aircraft exhaust treatment system that sprays paint |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310458645.9A CN116440596B (en) | 2023-04-25 | 2023-04-25 | Aircraft exhaust treatment system that sprays paint |
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| CN116440596A CN116440596A (en) | 2023-07-18 |
| CN116440596B true CN116440596B (en) | 2024-01-23 |
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| CN116440596A (en) | 2023-07-18 |
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