CN110075667A - Exhaust treatment system - Google Patents
Exhaust treatment system Download PDFInfo
- Publication number
- CN110075667A CN110075667A CN201910465712.3A CN201910465712A CN110075667A CN 110075667 A CN110075667 A CN 110075667A CN 201910465712 A CN201910465712 A CN 201910465712A CN 110075667 A CN110075667 A CN 110075667A
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- Prior art keywords
- pipeline
- gas
- temperature
- treatment system
- exhaust treatment
- Prior art date
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- Granted
Links
- 239000007789 gas Substances 0.000 claims abstract description 75
- 238000003795 desorption Methods 0.000 claims abstract description 44
- 239000002912 waste gas Substances 0.000 claims abstract description 16
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 15
- 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 15
- 239000010457 zeolite Substances 0.000 claims abstract description 15
- 238000010521 absorption reaction Methods 0.000 claims description 13
- 238000006555 catalytic reaction Methods 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 5
- 238000013016 damping Methods 0.000 claims description 3
- 230000008030 elimination Effects 0.000 claims description 3
- 238000003379 elimination reaction Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000010992 reflux Methods 0.000 claims description 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract description 31
- 238000007084 catalytic combustion reaction Methods 0.000 abstract description 8
- 238000001179 sorption measurement Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 6
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 239000005416 organic matter Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000012855 volatile organic compound Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 150000001335 aliphatic alkanes Chemical class 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 229930040373 Paraformaldehyde Natural products 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 125000005442 diisocyanate group Chemical group 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- -1 isocyanide toluene Ester Chemical class 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920002866 paraformaldehyde Polymers 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002699 waste material 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
- 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
-
- 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
- F23G7/061—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating
- F23G7/063—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating electric heating
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2202/00—Combustion
- F23G2202/60—Combustion in a catalytic combustion chamber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2209/00—Specific waste
- F23G2209/14—Gaseous waste or fumes
Abstract
The present invention provides a kind of exhaust treatment system, including sequentially connected first pretreatment unit, second pretreatment unit, zeolite runner, heat-exchange device, catalytic combustion system, the zeolite runner includes desorption area, the desorption area is connect by third pipeline with the heat-exchange device, second pretreatment unit includes outlet side and inlet end, the outlet side is connect with the heat-exchange device again after being connect by the 4th pipeline with the third pipeline, the inlet end is connect with waste gas inlet by pipeline and passes through lateral and is connected on the third pipeline, gas in the third pipeline enters the lateral, and then enter in the 4th pipeline, the residual temperature being had using desorption gas keeps the temperature the temperature in the 4th pipeline.The residual temperature for the organic gas that exhaust treatment system provided by the invention is desorbed out using the first pretreatment unit keeps the temperature the pipeline of the second pretreatment unit, and formaldehyde exhaust-gas can be effectively treated.
Description
Technical field
The present invention relates to waste gas purification field more particularly to a kind of exhaust treatment systems.
Background technique
Volatile organic compounds is a kind of common atmosphere pollution, results from paint production, chemical fibre industry, metal
The industries such as coating, chemical coating, shoemaking process hides, plywood making, Tire production.Volatile organic compounds is divided into: alkanes, virtue
Hydro carbons, esters, aldehydes and other etc..It is most common to have benzene,toluene,xylene, styrene, diisocyanate, two isocyanide toluene
Ester, formaldehyde etc..Currently used method for gas purification includes absorption method, biological degradation method, combustion method.Wherein absorption method structure letter
It is single, it is easy to use, but due to the special chemical performance of some pollutants, tube wall is attached to as formaldehyde is easy crystallization in low temperature
On, current processing equipment can not be handled together the pollutant of different chemical characteristics, and other tables of equipment is needed to stay alone reason, be increased
Cost and the time of processing volatile organic compounds are added.
Summary of the invention
In view of this, being capable of handling multiple gases, save the cost it is necessary to provide a kind of improved exhaust treatment system
And the time.
The present invention provides a kind of exhaust treatment system, including sequentially connected first pretreatment unit, zeolite runner, heat are handed over
Changing device, catalytic combustion system and the exhaust outlet being connect respectively with the zeolite runner and heat-exchange device by pipeline, it is described
Zeolite runner includes desorption area, and the desorption gas gas outlet in the desorption area is connected by third pipeline and the heat-exchange device
It connecing, the exhaust treatment system further includes the second pretreatment unit, and second pretreatment unit includes outlet side and inlet end,
The outlet side is connect with the heat-exchange device again after being connect by the 4th pipeline with the third pipeline, and the inlet end is logical
Piping connect with waste gas inlet and passes through lateral and is connected on the third pipeline, the desorption in the third pipeline
Gas part enters in the lateral, and is entered in the 4th pipeline by second pretreatment unit, using de-
The residual temperature that attached gas has keeps the temperature the temperature in the 4th pipeline.
Further, the 4th pipeline is equipped with temperature sensor, for sensing the temperature in the 4th pipeline.
Further, it is additionally provided with air inlet adjustment valve on the lateral, for what is sensed according to the temperature sensor
Temperature adjusts the amount that desorption gas enters the 4th pipeline, and the temperature in the 4th pipeline is maintained at required range
It is interior.
Further, the lateral is connected to the pipeline of the neighbouring waste gas inlet.
Further, pipeline heater, the pipeline heater and the temperature sensing are additionally provided on the 4th pipeline
Device collaboration is for when second pretreatment unit works independently, guaranteeing the temperature in the 4th pipeline in required range
It is interior.
Further, the third pipeline be equipped with desorption blower, the lateral be connected to the desorption blower and
On the third pipeline between 4th pipeline.
Further, absorption blower, intake valve and check-valves are also successively arranged on the 4th pipeline, it is described for accelerating
The flowing of 4th gas in pipelines avoids the initiation reflux that conflicts with the desorption gas in the third pipeline.
Further, the desorption blower and absorption blower with corresponding pipeline are to be flexible coupling, the noise elimination for blower
Noise reduction and pipeline damping.
Further, the 4th pipeline is connect through branch line with the exhaust outlet, and described branch line one end position
On the 4th pipeline between the absorption blower and intake valve, the branch line is equipped with drain valve.
Further, it is additionally provided with pipe insulation facility on the 4th pipeline, for preventing the temperature in the 4th pipeline
Fast loss is spent, the temperature in pipeline is kept.
In above-mentioned exhaust treatment system, by setting, there are two waste gas inlet and pretreatment units, can handle more
Kind of organic exhaust gas, the pipeline of the residual temperature of the organic gas for being desorbed out using the first pretreatment unit to the second pretreatment unit
It is kept the temperature, formaldehyde exhaust-gas can be effectively treated, therefore, can handle a variety of organic exhaust gas and formaldehyde exhaust-gas, increased without additional
If processing equipment, processing cost, faster processing time are saved.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the exhaust treatment system in an embodiment of the present invention.
Main element symbol description
The present invention that the following detailed description will be further explained with reference to the above drawings.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
It should be noted that it can be directly on another component when component is referred to as " being installed in " another component
Or there may also be components placed in the middle.When a component is considered as " being set to " another component, it, which can be, is directly set
Set on another component or may be simultaneously present component placed in the middle.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " and/or " it include one or more phases
Any and all combinations of the listed item of pass.
Referring to Fig. 1, exhaust treatment system 100 shown in Fig. 1 is for handling volatile organic compounds, the exhaust-gas treatment
System 100 includes the first pretreatment unit 10 for passing sequentially through pipeline connection, zeolite runner 20, heat-exchange device 30 and catalysis combustion
Device 40 is burnt, the exhaust treatment system 100 further includes the second pretreatment unit 50 connecting with the heat-exchange device 30, control
System (not shown) processed and the row being connect respectively with the zeolite runner 20, heat-exchange device 30 and the second pretreatment unit 50
Port 60, the exhaust outlet 60 are used for the uncontaminated gases after emission treatment.
Described first pretreatment unit, 10 one end is connect through pipeline with the first waste gas inlet 11, the other end and the zeolite
Runner 20 connects, and one end that first pretreatment unit 10 is connect with first waste gas inlet 11 is additionally provided with the first benefit wind
Valve 13, the first benefit air-valve 13 are managed between first pretreatment unit 10 and first waste gas inlet 11 for controlling
Adsorption capacity in road controls the flowing velocity of waste exhaust gases in pipeline with this.In one embodiment, the first pretreatment dress
10 are set as filter, the filter is bag filter.In one embodiment, first pretreatment unit 10 with it is described
At least one piping filter is also set up on pipeline between first waste gas inlet 11, for reinforcing the filtering of pre-treatment step
Effect.In one embodiment, on the pipeline between first pretreatment unit 10 and first waste gas inlet 11 also
At least one diminishing separating device is set, for reducing the moisture in exhaust gas.
The zeolite runner 20 includes adsorption zone 21, cooling zone 22 and desorption area 23, and one end of the adsorption zone 21 passes through
Pipeline is connect with first pretreatment unit 10.The other end of the adsorption zone 21 is connected by pipeline and the exhaust outlet 60
It connects, the pipeline between the adsorption zone 21 and the exhaust outlet is equipped with second and mends air-valve 211 and the first absorption blower 212, leads to
It crosses the first absorption blower 212 and most of filtered exhaust gas is sent into the adsorption zone 21, by the adsorption zone 21
Zeolite adsorption filtration after exhaust gas in organic matter, reach discharge standard and by the exhaust outlet 60 to purify exhaust gas
Discharge.It should be understood that pipeline can be arranged at least one on pipeline between the adsorption zone 21 and the exhaust outlet
Filter is further to filter gas.
One end of the cooling zone 22 is connect with first pretreatment unit 10 by pipeline, and the other end is through first pipe
22a and second pipe 22b is connect with the heat-exchange device 30 and desorption area 23 respectively.It is successively set on the first pipe 22a
There are cold air adjusting valve 221 and desorption blower 222, fire arrester 223 is successively arranged on the second pipe 22b, desorption cold wind is adjusted
Valve 224 and wind-mixer 225 are also connected with lateral 22c, the connection of the one end the lateral 22c on the second pipe 22b
In the wind-mixer 225, the other end is connected on the pipeline between the heat-exchange device 30 and exhaust outlet 60, the branched pipe
Road 22c is equipped with desorption hot wind regulating valve 226.The one end in the desorption area 23 is connected to the cold wind tune through third pipeline 23a
It saves on valve 221 and the pipeline being desorbed between blower 222, the other end is connect with second pipe 22b.The desorption cold air adjusting valve
224 are used to adjust the gas flow into the wind-mixer 225 with desorption hot wind regulating valve 226, are controlled with this into described de-
The gas temperature in attached area 23, in one embodiment, the gas temperature are 190-220 DEG C.
The exhaust gas of fraction enters the cooling zone 22 after first pretreatment unit 10 filtering and carries out cooling drying,
Then a part of exhaust gas enters the heat-exchange device 30 through the first pipe 22a and is heated, by the lateral
22c flows into the second pipe 22b, and another part exhaust gas is through the heating in the second pipe 22b and the lateral 22c
Enter the desorption area 23 after exhaust gas mixing, the organic matter heating on the zeolite of adsorption saturation is desorbed out, restores zeolite
Adsorption capacity, the high-concentration waste gas under being desorbed successively is sent through the third pipeline 23a to the heat by the desorption blower 222 to be handed over
In changing device 30 and catalytic combustion system 40, burnt after becoming uncontaminated gases under the effect of the catalyst through the exhaust outlet 60
Discharge.
The heat-exchange device 30 is equipped with the first air inlet 30a, the first gas outlet 30b, the second air inlet 30c and second and goes out
Port 30d, the first air inlet 30a are connect with the desorption blower 222 by pipeline, the first gas outlet 30b and institute
It states exhaust outlet 60 to connect by pipeline, the pipeline between the first gas outlet 30b and the exhaust outlet 60 is equipped with drain valve
61, the drain valve 61 is used to control the discharge of gas, and one end of the lateral 22c is connected to first gas outlet
On pipeline between 30b and drain valve 61.The second air inlet 30c and the second gas outlet 30d, which burns with the catalysis, to be filled
Set 40 connections.High-concentration waste gas under specific desorption is through described in the third pipeline 23a and the first air inlet 30a entrance
Heat-exchange device 30 carries out heat exchange, enters the catalytic combustion system 40 through the second gas outlet 30d, passes through after catalysis burning
The second air inlet 30c enters the heat-exchange device 30, is discharged through the first gas outlet 30b, and most of gas passes through
The exhaust outlet 60 is discharged, and small portion of gas enters the lateral 22c and uses as desorption gas.
The catalytic combustion system 40 is equipped with third air inlet 41 and third gas outlet 42, the third air inlet 41 and institute
It states the second gas outlet 30d to connect by pipeline, the third gas outlet 42 is connect with the second air inlet 30c, the catalysis
Burner 40 makes former exhaust gas become non-contaminated air, reaches under the effect of the catalyst decomposing the organic matter in gas
To discharge standard.The catalytic combustion system 40 further includes electric heater 43, and the electric heater 43 is used to fire in the catalysis
Burning device 40, just starting following period of time preheats it to reach ignition temperature standard, in one embodiment, the electricity
The quantity of heater 43 is two, and ignition temperature is greater than 300 DEG C.
Second pretreatment unit 50 includes inlet end and outlet side, and the inlet end is through pipeline and the second gas inlet
Mouth 51 connects, and the 4th pipeline 50a of outlet side is connected to the pipe between the desorption blower 222 and the first air inlet 30a
On road, second pretreatment unit 50 is used to carry out primary filtration to exhaust gas, in one embodiment, second pretreatment
Device 50 is bag filter.It is successively arranged temperature sensor 52, second on the 4th pipeline 50a and adsorbs blower 53, air inlet
Valve 54, check-valves 55 and fire arrester 56.A branch is connected on pipeline between the second absorption blower 53 and intake valve 54
Pipeline 50b, the other end of the branch line 50b are connect with the exhaust outlet 60, and the branch line 50b is equipped with drain valve
57, the branch line 50b are used to mention when second pretreatment unit 50 is used alone for the catalytic combustion system 40
For preheating time.Second pretreatment unit 50 further includes lateral 50c, and one end of the lateral 50c is connected to
On pipeline between second pretreatment unit 50 and the second waste gas inlet 51, the other end is connected to the desorption blower
222 and the 4th pipeline between pipeline 50a on, in one embodiment, the lateral 50c adjacent to second exhaust gas into
Port 51 is arranged.The lateral 50c is used to for being passed through the organic gas part that the desorption area 23 desorption comes out described
In 4th pipeline 50a, the residual temperature being had by the organic gas that desorption comes out carries out the temperature in the 4th pipeline 50a
Heat preservation.The lateral 50c is equipped with air inlet adjustment valve 58, for adjusting the ratio for the organic gas for being desorbed out in turn
Control the temperature in the 4th pipeline 50a.Specifically, the temperature sensor 52 is connect with control series, according to the temperature
The temperature that sensor 52 senses is spent, the ratio of the air inlet adjustment valve 58 opened or closed is controlled by the control system,
The temperature in the 4th pipeline 50a is kept with this.In one embodiment, formaldehyde is passed through in second waste gas inlet 51
Gas handles it, and because formaldehyde gas is easy crystallization in low temperature, adjusting the temperature in the 4th pipeline 50a keeps it big
In 40 degree, in order to being further processed for subsequent step PARA FORMALDEHYDE PRILLS(91,95) gas.It should be understood that first pretreatment unit 10 can
To handle the organic exhaust gas such as alkanes, aromatic hydrocarbons, esters, second pretreatment unit 50 can also handle the organic wastes such as styrene
Gas.
In one embodiment, the 4th pipeline 50a is equipped with pipeline heater (not shown), the pipeline heater
It is connect with control system, for keeping temperature, such as formaldehyde needed for handling special volatile organic matter in the 4th pipeline 50a
Deng.The pipeline heater can be used in 50 isolated operation of the second pretreatment unit.
In one embodiment, the pipeline between the lateral 22c, the heat-exchange device 30 and drain valve 61,
Pipeline between third pipeline 23a, the 4th pipeline 50a and the desorption blower 222 and the 4th pipeline 50a is equipped with pipe insulation
Facility 70 keeps the temperature in pipeline for preventing the too fast loss of the temperature in pipeline, it is possible to understand that, pipe insulation is set
The position of facility is not limited to the position in above embodiment, can according to need and is equipped with pipe insulation in other connecting pipes
Facility.
In one embodiment, the first gas outlet 30b, catalytic combustion system 40,43 third pipeline 23a of electric heater
And temperature sensor 80 is provided on wind-mixer 225 to the pipeline between desorption area 23, the temperature sensor 80 is used for
The preheating of exhaust treatment system 100 and desorption stage guarantee that the temperature in corresponding pipeline and device reaches operation standard.?
In one embodiment, the wind-mixer 225 to the pipeline between desorption area 23 is equipped at least two temperature sensors 80.It is described
All control valves in temperature sensor 80 and exhaust treatment system 100 are connect with the control system, the control system
The opening and closing united for controlling the control valve, and the temperature sensed according to temperature sensor 80, the control system control correspond to
The opening and closing degree of control valve on pipeline guarantees the normal operation of the exhaust treatment system 100 with this.
It should be understood that the first absorption blower 212, desorption blower 222 and the second absorption blower 53 are soft with pipeline
Connection is used for fan noise elimination noise reduction and pipeline damping.
Exhaust treatment system provided by the invention, there are two waste gas inlet and pretreatment units for setting, can handle more
Kind of organic exhaust gas, the pipeline of the residual temperature of the organic gas for being desorbed out using the first pretreatment unit to the second pretreatment unit
It is kept the temperature, formaldehyde exhaust-gas can be effectively treated, be not necessarily to additional processing equipment, save processing cost, in addition quickening is handled
Time increases gas treatment amount, by the way that pipeline heater is arranged, equally can individually locate when the first pretreatment unit does not work
Manage formaldehyde gas.
Those skilled in the art it should be appreciated that more than embodiment be intended merely to illustrate the present invention,
And be not used as limitation of the invention, as long as in spirit of the invention, to made by embodiment of above
Appropriate change and variation are all intended to fall within the scope of the claimed invention.
Claims (10)
1. a kind of exhaust treatment system, including sequentially connected first pretreatment unit, zeolite runner, heat-exchange device, catalysis
Burner and the exhaust outlet being connect respectively with the zeolite runner and heat-exchange device by pipeline, the zeolite runner include
Area is desorbed, the desorption gas gas outlet in the desorption area is connect by third pipeline with the heat-exchange device, it is characterised in that:
The exhaust treatment system further includes the second pretreatment unit, and second pretreatment unit includes outlet side and inlet end, institute
It states after outlet side is connect by the 4th pipeline with the third pipeline and is connect again with the heat-exchange device, the inlet end passes through
Pipeline connect with waste gas inlet and passes through lateral and is connected on the third pipeline, the desorption gas in the third pipeline
Body portion enters in the lateral, and is entered in the 4th pipeline by second pretreatment unit, utilizes desorption
The residual temperature that gas has keeps the temperature the temperature in the 4th pipeline.
2. exhaust treatment system as described in claim 1, it is characterised in that: the 4th pipeline is equipped with temperature sensor,
For sensing the temperature in the 4th pipeline.
3. exhaust treatment system as claimed in claim 2, it is characterised in that: be additionally provided with air inlet adjustment on the lateral
Valve, the temperature adjustment desorption gas for being sensed according to the temperature sensor enter the amount of the 4th pipeline, will be described
Temperature in 4th pipeline is maintained in required range.
4. exhaust treatment system as described in claim 1, it is characterised in that: the lateral is connected to the neighbouring exhaust gas
The pipeline of air inlet.
5. exhaust treatment system as claimed in claim 2, it is characterised in that: be additionally provided with pipeline heating on the 4th pipeline
Device, the pipeline heater are cooperateed with the temperature sensor for guaranteeing when second pretreatment unit works independently
Temperature in 4th pipeline is in required range.
6. exhaust treatment system as described in claim 1, it is characterised in that: the third pipeline is equipped with desorption blower, institute
It states on the third pipeline that lateral is connected between the desorption blower and the 4th pipeline.
7. exhaust treatment system as claimed in claim 6, it is characterised in that: be also successively arranged absorption wind on the 4th pipeline
Machine, intake valve and check-valves avoid and the desorption gas in the third pipeline for accelerating the 4th gas in pipelines flowing
Body conflict causes reflux.
8. exhaust treatment system as claimed in claim 7, it is characterised in that: the desorption blower and absorption blower with it is corresponding
Pipeline is to be flexible coupling, noise elimination noise reduction and pipeline damping for blower.
9. exhaust treatment system as claimed in claim 7, it is characterised in that: the 4th pipeline is through branch line and the row
Port connection, and described branch line one end is located on the 4th pipeline between the absorption blower and intake valve, it is described
Branch line is equipped with drain valve.
10. exhaust treatment system as described in claim 1, it is characterised in that: be additionally provided with pipe insulation on the 4th pipeline
Facility keeps the temperature in pipeline for preventing the too fast loss of temperature in the 4th pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910465712.3A CN110075667B (en) | 2019-05-30 | 2019-05-30 | Exhaust gas treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910465712.3A CN110075667B (en) | 2019-05-30 | 2019-05-30 | Exhaust gas treatment system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110075667A true CN110075667A (en) | 2019-08-02 |
| CN110075667B CN110075667B (en) | 2024-04-02 |
Family
ID=67422771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910465712.3A Active CN110075667B (en) | 2019-05-30 | 2019-05-30 | Exhaust gas treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110075667B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110075667B (en) * | 2019-05-30 | 2024-04-02 | 江苏新聚环保科技有限公司 | Exhaust gas treatment system |
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