CN105749695B - A kind of low concentration, Wind Volume, high peculiar smell exhaust gas concentration energy equipment and its technique - Google Patents
A kind of low concentration, Wind Volume, high peculiar smell exhaust gas concentration energy equipment and its technique Download PDFInfo
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- CN105749695B CN105749695B CN201610258218.6A CN201610258218A CN105749695B CN 105749695 B CN105749695 B CN 105749695B CN 201610258218 A CN201610258218 A CN 201610258218A CN 105749695 B CN105749695 B CN 105749695B
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- 238000000034 method Methods 0.000 title claims abstract description 47
- 230000035943 smell Effects 0.000 title claims abstract description 40
- 239000007789 gas Substances 0.000 claims abstract description 143
- 238000003795 desorption Methods 0.000 claims abstract description 127
- 238000002336 sorption--desorption measurement Methods 0.000 claims abstract description 76
- 238000010521 absorption reaction Methods 0.000 claims abstract description 68
- 239000003463 adsorbent Substances 0.000 claims abstract description 48
- 238000003421 catalytic decomposition reaction Methods 0.000 claims abstract description 39
- 239000002912 waste gas Substances 0.000 claims abstract description 18
- 239000000356 contaminant Substances 0.000 claims abstract description 16
- 239000002440 industrial waste Substances 0.000 claims abstract description 12
- 238000006555 catalytic reaction Methods 0.000 claims description 20
- 239000012141 concentrate Substances 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 claims description 11
- 239000012159 carrier gas Substances 0.000 claims description 9
- 238000002485 combustion reaction Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 8
- 239000002594 sorbent Substances 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims description 6
- 238000010792 warming Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 4
- 230000003647 oxidation Effects 0.000 claims description 4
- 238000007254 oxidation reaction Methods 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims 2
- 238000000746 purification Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 230000003197 catalytic Effects 0.000 abstract description 4
- 238000011084 recovery Methods 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 9
- 230000002860 competitive Effects 0.000 description 7
- 239000003344 environmental pollutant Substances 0.000 description 6
- 231100000719 pollutant Toxicity 0.000 description 6
- 238000007084 catalytic combustion reaction Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000009826 distribution Methods 0.000 description 5
- 238000011069 regeneration method Methods 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000010815 organic waste Substances 0.000 description 3
- 230000008929 regeneration Effects 0.000 description 3
- 229920002456 HOTAIR Polymers 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N AI2O3 Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 206010022114 Injury Diseases 0.000 description 1
- 210000002381 Plasma Anatomy 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002708 enhancing Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N o-xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 230000001172 regenerating Effects 0.000 description 1
- 230000001568 sexual Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000002194 synthesizing Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
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- 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
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2206/00—Waste heat recuperation
- F23G2206/20—Waste heat recuperation using the heat in association with another installation
-
- 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 invention discloses a kind of low concentration, Wind Volume, high peculiar smell exhaust gas concentration energy equipment and its techniques, belong to industrial waste gas purifying field.Including waste gas inlet, adsorption/desorption room and catalytic decomposition room, further include heat exchanger, heater and internal circulating fan, wherein, adsorbent is equipped in adsorption/desorption room, adsorption/desorption room is equipped with waste gas inlet, desorption gas gas outlet, exhaust outlet and desorption gas import, desorption gas import is connected to one end of internal circulating fan by pipeline, the other end, heat exchanger, heater and one end of catalytic decomposition room of internal circulating fan are sequentially connected, the other end of catalytic decomposition room is connect with heat exchanger, and heat exchanger is connected to desorption gas gas outlet.It is more efficient using the removal for the contaminant component that multi-stage absorption system makes adsorption capacity weaker, and peculiar smell purification efficiency improves, multicomponent exhaust gas stably reaching standard；The adsorption efficiency of organic exhaust gas is improved, catalytic exhaust residual heat recovery energy-saving effect is notable.
Description
Technical field
The present invention relates to industrial waste gas purifying fields more particularly to a kind of low concentration, Wind Volume, high peculiar smell exhaust gas to concentrate energy
Source equipment and its technique.
Background technology
" concentration is low, large-minded, component is more, peculiar smell is dense " is the production dirt feature of common industrial organic exhaust gas.With resident couple
The continuous promotion of ambient atmosphere quality requirement, more and more blowdown enterprises are faced with " peculiar smell complaint " puzzlement, meanwhile, blowdown is received
The implementation of expense system has also beaten alarm bell to blowdown enterprise, and enterprise is to development steady in a long-term, it is necessary to solve exhaust gas peculiar smell and ask
Topic.And some common at present VOCs treatment technologies, such as high temperature incineration method, absorption process, plasma method, photochemical catalytic oxidation
Method etc., due to economy, technology and management etc. are various, it is difficult to meet current and environmental requirement from now on.
Traditional absorption-catalytic decomposition process leads to the purification efficiency system of multicomponent pollutant due to competitive Adsorption
About, if the absorption of adsorbent is easy to occur peak value in desorption process to lead to safety problem with long, desorption is also easily caused
Next round adsorption efficiency is not caused totally to reduce problem.
There are the following problems for currently used adsorbent equipment：1. operating cost is high.Replacement or steam due to adsorbent are again
It is raw, it causes system operation expense higher, causes system operating ratio low, mostly decoration device.2. stably reaching standard is difficult.Since industry is different
The multi-component competitive Adsorption problem of taste exhaust gas, causes peculiar smell purification efficiency not high, it is difficult to ensure the stably reaching standard of peculiar smell.3. grasping
Make complex management.It regularly replaces adsorbent or steam regeneration method is difficult to realize automation control, increase the difficulty of operator
Degree and workload.4. security risk.Traditional absorption-catalytic decomposition process is susceptible to desorption shakiness due to adsorbing with long
It is fixed, there is safety problem.It always will appear adsorbent equipment combustion problem in recent years, gently then injury device, it is heavy then explode, sum up
Reason is mainly that gas concentration mutates, and reaches burning limit.A kind of situation of gas concentration mutation is gas source condition shakiness
Fixed, fluctuation of concentration causes, and is in addition exactly absorption with long, is desorbed unstable, and instantaneous concentration occur transfinites.
Chinese invention patent, publication No.：CN 103438467A, date of publication：2013.12.11 disclosing a kind of organic waste
Aspiration desorption concentration catalytic combustion device system, including dry filter device, dry filter device lower end are connected with catalysis
Burning bed, the catalysis burning bed right end are connected with spark arrester a, and the spark arrester a bottom righthand sides are connected with benefit cold blast sliding valve, described to urge
Change burning bed lower end and is also associated with temperature control valve (TCV).The replacing construction of the invention activated carbon greatly promotes, and reduces activated carbon
Replacing construction, activated carbon can effectively desorption and regeneration recycle, and the organic exhaust gas after desorption thoroughly decomposes after catalysis is burnt
For CO2 and H2O, non-secondary pollution, system uses PLC and human-computer interface control operating system, easy to operate, and reducing maloperation can
Energy.Its shortcoming is：First, absorbing process is used using conventional two towers switching in the patent, and a tower adsorbs online, and a tower exists
Line is desorbed, and adsorption tower easily occurs adsorbing with the problems such as long, adsorption efficiency is low, desorption is not clean when carrying out adsorption operations.Its
Secondary, desorption gas reuse equally realizes concentration energy, has very big advantage compared to traditional adsorption/desorption technique, but is catalyzed
Reaction itself is more demanding to temperature condition, and gas temperature is extremely difficult to urge after being desorbed generally in 200~450 DEG C, the patent
Change and requires, even if reaching catalytic reaction temperature, organic component, which decomposes the reaction heat generated, to make gas temperature further increase,
This can bring both sides problem：First, high-temperature gas itself is dangerous, easily adsorbent is made to catch fire, temperature is higher, and danger is got over
Greatly, because the thing for making equipment damage or explode completely of catching fire is appeared in the newspapers repeatly in recent years；Another aspect desorption temperature is general
At 260 DEG C hereinafter, excessively high gas temperature can cause additional energy waste.
Chinese utility model patent, Authorization Notice No.：CN 204601947U, authorized announcement date：2015.09.02 announcing
A kind of volatile organic waste gas treatment device integrating absorption-desorption-catalysis burning, is related in field of environment protection
The processing unit of volatile organic waste gas, it is characterized in that：Catalytic combustion system is mounted in adsorbent equipment, and adsorbent is seated in suction
In the chuck that adsorption device and catalytic combustion system are formed, the heat adsorbent generated in catalyticing combustion process completes desorption,
Gas after desorption enters catalytic combustion system and forms cycle, effectively solves each in traditional absorption/desorption-catalytic combustion system
From the problems such as solely invest larger, high energy consumption, operating cost is high.Disadvantage is that：The patent is shared due to absorption and catalysis
A set of gas piping realizes that the unlatching of demand property, to close catalytic module difficult, and cannot achieve continuous production；In addition, this is specially
Equally there is aforementioned patent (Chinese invention patent, publication No. in profit：CN 103438467A, date of publication：2013.12.11) same
Problem, in addition it is more severe, i.e. and catalysis reaction needs to reach certain temperature condition, does not occur any heating in the patent and sets
It is standby；Furthermore adsorption process is typical exothermic process, since catalysis reaction heat can make adsorbent bed temperature liter by wall
Height, it is very unfavorable to adsorption process, therefore patent engineering application can encounter many problems.
Invention content
1. technical problems to be solved by the inivention
For the low problem of the organic exhaust gas adsorption efficiency of the prior art, the present invention provides a kind of low concentration, Wind Volume,
High peculiar smell exhaust gas concentration energy equipment and its technique.It improves the adsorption efficiency of organic exhaust gas.
2. technical solution
To solve the above problems, technical solution provided by the invention is：
A kind of low concentration, Wind Volume, high peculiar smell exhaust gas concentrate energy equipment, including waste gas inlet, adsorption/desorption room
Further include heat exchanger, heater and internal circulating fan, wherein be equipped with adsorbent in adsorption/desorption room, inhale with catalytic decomposition room
Attached desorption chamber is equipped with waste gas inlet, desorption gas gas outlet, exhaust outlet and desorption gas import, and desorption gas import is recycled with internal
One end of wind turbine is connected to by pipeline, the other end of internal circulating fan, heat exchanger, heater and be catalytically decomposed one end of room according to
Secondary connection, the other end that room is catalytically decomposed are connect with heat exchanger, and heat exchanger is connected to desorption gas gas outlet.
Preferably, adsorption/desorption room includes primary adsorption desorption chamber and secondary absorption desorption chamber, and a desorption gas import is given up
Gas air inlet and desorption gas gas outlet are each provided in primary adsorption desorption chamber, and primary adsorption desorption chamber and secondary absorption desorption chamber connect
Logical, another desorption gas import and exhaust outlet are each provided in secondary absorption desorption chamber.
Preferably, heat exchanger is sequentially connected in series by first-class heat exchanger, secondary heat exchanger and three-level heat exchanger, level-one heat exchange
The upper side of device is connected to the upper side of secondary heat exchanger, and the downside of secondary heat exchanger and the downside of three-level heat exchanger connect
Logical, the upper side of the inlet communication of three-level heat exchanger and heater, three-level heat exchanger is connected to catalytic decomposition room, first-class heat exchanger
It is connected to desorption gas gas outlet.
Preferably, primary adsorption desorption chamber, adsorbent used in secondary absorption desorption chamber, according to the composition of air source and dense
Degree distribution is sorbent material of the same race.
Preferably, primary adsorption desorption chamber, adsorbent used in secondary absorption desorption chamber, according to the composition of air source and dense
Degree distribution, is different types of sorbent material.
Preferably, the series of heat exchanger is adjustable, and heat exchanger series is determined according to gas temperature after heat exchange, gas temperature after heat exchange
Ranging from 80~200 DEG C of degree.
Preferably, indoor adsorbent bed layered arrangement is desorbed in primary adsorption desorption chamber and secondary absorption.
A kind of low concentration, Wind Volume, high peculiar smell exhaust gas concentrate energy technique, and industrial waste gas passes through above-described one kind
Low concentration, Wind Volume, high peculiar smell exhaust gas concentration energy equipment are handled, and step is：
A, the industrial waste gas entered from waste gas inlet is by primary adsorption desorption chamber, and a part of contaminant component is in level-one
Adsorption on the adsorbent of adsorption/desorption room；
B, the weaker contaminant remaining component of another part adsorption capacity enters secondary absorption desorption chamber, is desorbed by secondary absorption
The adsorbent of room adsorbs, and pure air is discharged by exhaust outlet, this is adsorption process；
C, the cleaning of internal circulating fan suction multi-stage heat exchanger discharge, high temperature air；Simultaneously by two desorption gas imports
Into in secondary absorption desorption chamber and primary adsorption desorption chamber；
D, it is desorbed through heating power, secondary absorption desorption chamber and primary adsorption are desorbed in indoor adsorbent surface and duct and adhere to
Gas molecule parsing, be back to gas phase again, mix with carrier gas, formed low-temperature mixed gas, by desorption gas gas outlet discharge, this is
Desorption process；
E, the low-temperature mixed gas after desorption passes through first-class heat exchanger, secondary heat exchanger, three-level heat exchanger and heater successively
It is warming up to catalytic decomposition temperature, is burnt into catalytic decomposition room, this is catalyticing combustion process；
F, catalyticing combustion process discharges heat, and the taken heat part of high-temperature gas heats absorption as the heat source of heat exchanger
The low-temperature mixed gas of desorption chamber discharge, another part heat are aspirated with carrier gas by internal circulating fan, are sent into level-one simultaneously respectively
Adsorption/desorption room is desorbed adsorbent heating power with secondary absorption desorption chamber, repeats step C, D and E.
Preferably, the out temperature of room, heat exchanger and heater is catalytically decomposed can need adjustment to urge according to technique
Changing the gas temperature before decomposing can be compensated by heater to catalysis oxidation required temperature；
Preferably, catalytic decomposition needs to carry out at a certain temperature, and temperature range is 300~380 DEG C.
3. advantageous effect
Using technical solution provided by the invention, compared with prior art, have the advantages that：
(1) traditional absorption-catalytic decomposition process is due to competitive Adsorption, cause the purification efficiency of multicomponent pollutant by
It restricts, if the absorption of adsorbent is easy to occur peak value in desorption process to lead to safety problem with long, also easily causes de-
It is attached that next round adsorption efficiency is not caused totally to reduce problem；The present invention uses two-stage adsorption system, i.e. adsorption/desorption room includes one
Grade adsorption/desorption room and secondary absorption desorption chamber, the industrial waste gas entered from waste gas inlet is by primary adsorption desorption chamber, and one
Most of contaminant component Adsorption on the adsorbent of primary adsorption desorption chamber, the weaker contaminant remaining component of adsorption capacity
It is adsorbed again into secondary absorption desorption chamber, pure air is discharged by exhaust outlet, avoids regional competitive Adsorption, is improved more
The adsorption efficiency of component pollutant；
(2) removal for the contaminant component that the present invention makes adsorption capacity weaker using multi-stage absorption system is more efficient, different
Taste purification efficiency improves, multicomponent exhaust gas stably reaching standard；
(3) heat exchanger of the invention uses plural serial stage, the high-temperature gas after catalysis reaction that heat is reached desorption low temperature
Gas, entire heat transfer process is steady, heat exchange efficiency and capacity usage ratio are high, and energy reuse so that additional heat is few, and operating cost is bright
It is aobvious to reduce；
(4) catalytic decomposition process of the present invention discharges heat, heat source of the taken heat part of high-temperature gas as heat exchanger
The low-temperature mixed gas of adsorption/desorption room discharge is heated, another part heat is aspirated with carrier gas by internal circulating fan, respectively simultaneously
Be sent into primary adsorption desorption chamber and secondary absorption desorption chamber adsorbent heating power is desorbed, repeat step C, D and E, automatic cycle into
Row desorption and catalytic decomposition, adsorbent heat air regenesis fully achieve automation control, hence it is evident that reduce the difficulty of execute-in-place worker
Degree and workload.
Description of the drawings
Fig. 1 is low concentration of the present invention, Wind Volume, high peculiar smell exhaust gas concentration energy device structure schematic diagram；
Fig. 2 is low concentration of the present invention, Wind Volume, high peculiar smell exhaust gas concentration energy process flow diagram.
Label declaration in schematic diagram：
1, waste gas inlet；2, primary adsorption desorption chamber；3, secondary absorption desorption chamber；4, exhaust outlet；5, gas import is desorbed；
6, desorption gas gas outlet；71, first-class heat exchanger；72, secondary heat exchanger；73, three-level heat exchanger；8, heater；9, it is catalytically decomposed
Device；10, internal circulating fan.
Specific implementation mode
To further appreciate that present disclosure, in conjunction with accompanying drawings and embodiments, the present invention is described in detail.
In conjunction with Fig. 1-2, a kind of low concentration, Wind Volume, high peculiar smell exhaust gas concentrate energy equipment, including waste gas inlet 1,
Adsorption/desorption room, catalytic decomposition room 9, heat exchanger, heater 8 and internal circulating fan 10, wherein be equipped with and inhale in adsorption/desorption room
Attached dose, adsorption/desorption room is equipped with waste gas inlet 1, desorption gas gas outlet 6, exhaust outlet 4 and desorption gas import 5, desorption gas into
Mouth 5 is connected to one end of internal circulating fan 10 by pipeline；
Adsorption/desorption room includes primary adsorption desorption chamber 2 and secondary absorption desorption chamber 3, a desorption gas import 5, exhaust gas into
Gas port 1 and desorption gas gas outlet 6 are each provided in primary adsorption desorption chamber 2, primary adsorption desorption chamber 2 and secondary absorption desorption chamber 3
Connection, another desorption gas import 5 and exhaust outlet 4 are each provided in secondary absorption desorption chamber 3.
Traditional absorption-catalytic decomposition process leads to the purification efficiency system of multicomponent pollutant due to competitive Adsorption
About, if the absorption of adsorbent is easy to occur peak value in desorption process to lead to safety problem with long, desorption is also easily caused
Next round adsorption efficiency is not caused totally to reduce problem.The present invention is to solve the problems, such as this, and using two-stage adsorption system, i.e. absorption is de-
Alcove includes primary adsorption desorption chamber 2 and secondary absorption desorption chamber 3, and the industrial waste gas entered from waste gas inlet 1 passes through level-one
Adsorption/desorption room 2, most contaminant component Adsorption, adsorption capacity on the adsorbent of primary adsorption desorption chamber 2 are weaker
Contaminant remaining component enter secondary absorption desorption chamber 3 and adsorb again, pure air is discharged by exhaust outlet 4, avoids region
Sexual competition is adsorbed, and the adsorption efficiency of multicomponent pollutant can improve 5%~30%.Multi-stage absorption system so that adsorption capacity is weaker
Contaminant component removal it is more efficient, peculiar smell purification efficiency synchronize improve 5%~30%, multicomponent exhaust gas stably reaching standard.
Adsorbent used in primary adsorption desorption chamber 2, secondary absorption desorption chamber 3 can be activated carbon, activated carbon fibre,
Carbon molecular sieve, silica gel, activated alumina, synthesis zeolite etc., according to the composition and concentration distribution of air source, primary adsorption is de-
Alcove 2 and secondary absorption desorption chamber 3 can be sorbent material of the same race or different types of sorbent material.
The other end, heat exchanger, heater 8 and one end of catalytic decomposition room 9 of internal circulating fan 10 are sequentially connected, and are catalyzed
The other end of decomposition chamber 9 is connect with heat exchanger, and heat exchanger is connected to desorption gas gas outlet 6.
Heat exchanger is sequentially connected in series by first-class heat exchanger 71, secondary heat exchanger 72 and three-level heat exchanger 73, level-one heat exchange
The upper side of device 71 is connected to the upper side of secondary heat exchanger 72, under the downside and three-level heat exchanger 73 of secondary heat exchanger 72
Side is connected to, the inlet communication of three-level heat exchanger 73 and heater 8, and upper side and the catalytic decomposition room 9 of three-level heat exchanger 73 connect
Logical, first-class heat exchanger 71 is connected to desorption gas gas outlet 6.Heat exchanger is connected, and why is constrained to exchange heat at present using three-level
The efficiency of device realizes that big temperature difference heat exchange, first-class heat exchanger are technically difficult to realize, so required for being obtained by increasing series
Temperature value, fully ensured that heat transfer effect so that desorption temperature remains at defined temperature range.
The series of heat exchanger is adjustable, and heat exchanger series is determined according to gas temperature after heat exchange, air temperature ranges after heat exchange
It is 80~200 DEG C.Adsorbent bed layered arrangement in primary adsorption desorption chamber 2 and secondary absorption desorption chamber 3, contact area increase
Greatly, gas-flow resistance reduces；Adsorption effect enhances.
A kind of low concentration, Wind Volume, high peculiar smell exhaust gas concentrate energy technique, and industrial waste gas passes through above-described one kind
Low concentration, Wind Volume, high peculiar smell exhaust gas concentration energy equipment are handled, and step is：
A, the industrial waste gas entered from waste gas inlet 1 is by primary adsorption desorption chamber 2, and a part of contaminant component is one
Adsorption on the adsorbent of grade adsorption/desorption room 2；
B, the weaker contaminant remaining component of another part adsorption capacity enters secondary absorption desorption chamber 3, is taken off by secondary absorption
The adsorbent of alcove 3 adsorbs, and pure air is discharged by exhaust outlet 4, this is adsorption process；As shown in Figure 1, primary adsorption desorption chamber
2 and secondary absorption desorption chamber 3 be integrated, communicate between the two, here it is integrated two-stage series connection adsorption systems；
C, internal circulating fan 10 aspirate cleaning, high temperature air that first-class heat exchanger 71 is discharged (unspecial air into
Gas port, using air source for the first time, there are two types of modes：First, the air in entire adsorption/desorption room；Second is that draught fan impeller part is leaked
The supplement air come in, because gas recycles between desorption, catalysis, heat exchange, desorption always, without gas consumption, normal operation
Afterwards, air need not additionally be supplemented.)；By two desorption gas imports 5 (can only air inlet) while entering 3 He of secondary absorption desorption chamber
In primary adsorption desorption chamber 2, this is desorption system in parallel；With the adsorption system in step B, it is used in conjunction with primary adsorption desorption chamber
2 and secondary absorption desorption chamber 3, it is formed " integrated two-stage series connection absorption-parallel connection desorption system "；
D, it is desorbed through heating power, it is attached in secondary absorption desorption chamber 3 and adsorbent surface in primary adsorption desorption chamber 2 and duct
The gas molecule parsing, is back to gas phase again, is mixed with carrier gas (i.e. clean, high temperature air), low-temperature mixed gas is formed, by taking off
Attached gas gas outlet 6 is discharged, this is desorption process, and whole process realizes that heat reuse, hot-air automation regeneration form hot-air
Regenerative system is automated, substantially energy saving consumption reduces operating cost.
E, the low-temperature mixed gas after desorption passes through first-class heat exchanger 71, secondary heat exchanger 72,73 and of three-level heat exchanger successively
Heater 8 is warming up to catalytic decomposition temperature, and temperature range is 300~380 DEG C, is burnt into catalytic decomposition room 9, this is catalysis
Combustion system, catalysis burning are a meanings with catalytic decomposition, and product is substantially CO2And H2O, direct and heat enters together to be changed
Hot device；Catalytic decomposition room 9 is inner to release big calorimetric because combustion reaction occurs, and high temperature, the pure air of discharge can turn through heat exchanger
Remove a part of heat, desorption process can dissipate another part heat again, and desorption makes the gaseous molecular for being adsorbed on surface gather around again
There is kinetic energy, and be distributed in gas, therefore, the temperature of desorption gas (i.e. gaseous mixture) is relatively low.
F, catalytic decomposition process release heat, high-temperature gas (it is exactly to be catalyzed reaction heat to improve mixed gas temperature in fact,
Become high-temperature gas) the low-temperature mixed gas of taken a heat part as the heat source heating adsorption/desorption room discharge of heat exchanger, separately
A part of heat is aspirated with carrier gas by internal circulating fan 10, and it is de- with secondary absorption to be sent into primary adsorption desorption chamber 2 simultaneously respectively
Adsorbent heating power is desorbed in alcove 3, repeats step C, D and E.Automatic cycle is desorbed and is catalytically decomposed, adsorbent heat air
Regeneration fully achieves automation control, hence it is evident that reduces the difficulty and workload of execute-in-place worker.
It can solve the problems, such as that exhaust gas peculiar smell removal rate caused by Multicomponent Competitive Adsorption Onto is not high through the invention, be effectively ensured
While peculiar smell removal effect, the decomposition heat of pollutant is made full use of, reduces the operating cost of system, ensures that the safety of system is steady
Fixed operation.
The out temperature of catalytic decomposition room 9, heat exchanger and heater 8 can need to adjust according to technique.Technique needs
Refer to that jljl system desorption temperature is not different, for example, benzene desorption temperature at 80 DEG C, the desorption temperature of dimethylbenzene is 140 degree, other
The desorption temperature of object system can be provided according to its physical parameter (boiling point) in technological process；The present invention is an equipment, applicable
In various object systems, so temperature needs need to adjust according to technique.
Embodiment 1
In conjunction with Fig. 1-2, a kind of low concentration, Wind Volume, high peculiar smell exhaust gas concentrate energy equipment, including waste gas inlet 1,
Adsorption/desorption room and catalytic decomposition room 9 further include heat exchanger, heater 8 and internal circulating fan 10, wherein adsorption/desorption room
Interior to be equipped with adsorbent, adsorption/desorption room is equipped with waste gas inlet 1, desorption gas gas outlet 6, exhaust outlet 4 and desorption gas import 5,
Desorption gas import 5 is connected to one end of internal circulating fan 10 by pipeline, and adsorption/desorption room includes 2 He of primary adsorption desorption chamber
Secondary absorption desorption chamber 3, a desorption gas import 5, waste gas inlet 1 and desorption gas gas outlet 6 are each provided at primary adsorption desorption
On room 2, primary adsorption desorption chamber 2 is connected to secondary absorption desorption chamber 3, another desorption gas import 5 and exhaust outlet 4 are each provided at two
On grade adsorption/desorption room 3.
Adsorbent bed layered arrangement in primary adsorption desorption chamber 2 and secondary absorption desorption chamber 3；Primary adsorption desorption chamber
2, adsorbent used in secondary absorption desorption chamber 3 is sorbent material of the same race according to the composition and concentration distribution of air source.
The other end, heat exchanger, heater 8 and one end of catalytic decomposition room 9 of internal circulating fan 10 are sequentially connected, and are catalyzed
The other end of decomposition chamber 9 is connect with heat exchanger, and heat exchanger is connected to desorption gas gas outlet 6.
Heat exchanger is sequentially connected in series by first-class heat exchanger 71, secondary heat exchanger 72 and three-level heat exchanger 73, level-one heat exchange
The upper side of device 71 is connected to the upper side of secondary heat exchanger 72, under the downside and three-level heat exchanger 73 of secondary heat exchanger 72
Side is connected to, the inlet communication of three-level heat exchanger 73 and heater 8, and upper side and the catalytic decomposition room 9 of three-level heat exchanger 73 connect
Logical, first-class heat exchanger 71 is connected to desorption gas gas outlet 6.
The series of heat exchanger is adjustable, and heat exchanger series is determined according to gas temperature after heat exchange, air temperature ranges after heat exchange
It is 80 DEG C.
A kind of low concentration, Wind Volume, high peculiar smell exhaust gas concentrate energy technique, and industrial waste gas passes through above-described one kind
Low concentration, Wind Volume, high peculiar smell exhaust gas concentration energy equipment are handled, and step is：
A, the industrial waste gas entered from waste gas inlet 1 is by primary adsorption desorption chamber 2, and a part of contaminant component is one
Adsorption on the adsorbent of grade adsorption/desorption room 2；
B, the weaker contaminant remaining component of another part adsorption capacity enters secondary absorption desorption chamber 3, is taken off by secondary absorption
The adsorbent of alcove 3 adsorbs, and pure air is discharged by exhaust outlet 4, this is adsorption process；
C, internal circulating fan 10 aspirates the cleaning of heat exchanger discharge, high temperature air；By two desorption gas imports 5 simultaneously into
Enter in secondary absorption desorption chamber 3 and primary adsorption desorption chamber 2；
D, it is desorbed through heating power, it is attached in secondary absorption desorption chamber 3 and adsorbent surface in primary adsorption desorption chamber 2 and duct
The gas molecule parsing, is back to gas phase, is mixed with carrier gas, form low-temperature mixed gas, be discharged by desorption gas gas outlet 6 again,
This is desorption process；
E, the low-temperature mixed gas after desorption passes through first-class heat exchanger 71, secondary heat exchanger 72,73 and of three-level heat exchanger successively
Heater 8 is warming up to catalytic decomposition temperature, and temperature range is 300 DEG C, is burnt into catalytic decomposition room 9, this is that catalysis is burned
Journey；The out temperature that room 9, heat exchanger and heater 8 is catalytically decomposed can be needed according to technique before adjusting catalytic decomposition
Gas temperature can be compensated by heater 8 to catalysis oxidation required temperature；
F, catalyticing combustion process discharges heat, and the taken heat part of high-temperature gas heats absorption as the heat source of heat exchanger
The low-temperature mixed gas of desorption chamber discharge, another part heat are aspirated with carrier gas by internal circulating fan 10, are sent into one simultaneously respectively
Grade adsorption/desorption room 2 is desorbed adsorbent heating power with secondary absorption desorption chamber 3, repeats step C, D and E.
Embodiment 2
The present embodiment is similar to Example 1, wherein the difference is that, the series of heat exchanger is adjustable, and heat exchanger grade is several
It is determined according to gas temperature after heat exchange, air temperature ranges are 200 DEG C after heat exchange.
A kind of low concentration, Wind Volume, high peculiar smell exhaust gas concentrate energy technique, the low-temperature mixed gas after being desorbed in step E
It is warming up to catalytic decomposition temperature by first-class heat exchanger 71, secondary heat exchanger 72, three-level heat exchanger 73 and heater 8 successively, temperature
Ranging from 380 DEG C of degree burns into catalytic decomposition room 9.
Embodiment 3
The present embodiment is similar to Example 1, wherein the difference is that, the series of heat exchanger is adjustable, and heat exchanger grade is several
It is determined according to gas temperature after heat exchange, air temperature ranges are 100 DEG C after heat exchange.
A kind of low concentration, Wind Volume, high peculiar smell exhaust gas concentrate energy technique, the low-temperature mixed gas after being desorbed in step E
It is warming up to catalytic decomposition temperature by first-class heat exchanger 71, secondary heat exchanger 72, three-level heat exchanger 73 and heater 8 successively, temperature
Ranging from 350 DEG C of degree burns into catalytic decomposition room 9.
Embodiment 4
The present embodiment and embodiment 1-3 are similar, wherein the difference is that, primary adsorption desorption chamber 2, secondary absorption are de-
Adsorbent used in alcove 3 is different types of sorbent material according to the composition and concentration distribution of air source.
The problem of low concentration, Wind Volume, high peculiar smell exhaust gas are primarily present is since there are peculiar smell removal is not thorough for competitive Adsorption
Bottom, even if qualified discharge, the peculiar smell problem Ye Huishi enterprises that disturb residents constantly complain by resident.The present invention is by increasing secondary absorption
Desorption chamber effectively avoids the absorption competition between different component, and the component of strong adsorption force removes in primary adsorption room, adsorption capacity
Weak component removes again in secondary absorption room, and peculiar smell purification is complete.
Meanwhile low concentration Wind Volume exhaust gas is directly catalyzed, processing cost of burning and operating cost are high, technical difficulty is big, this
Invention makes low concentration gas contaminant component concentration improve 5~10 times by Adsorption Concentration, and catalytic burning difficulty reduces, and logical
Multi-stage heat exchanger is crossed, realizes that catalysis reaction heat energy recycles, energy-saving effect is notable.
Schematically the present invention and embodiments thereof are described above, description is not limiting, institute in attached drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited to this.So if the common skill of this field
Art personnel are enlightened by it, without departing from the spirit of the invention, are not inventively designed and the technical solution
Similar frame mode and embodiment, are within the scope of protection of the invention.
Claims (8)
1. a kind of low concentration, Wind Volume, high peculiar smell exhaust gas concentrate energy equipment, including waste gas inlet（1）, adsorption/desorption room
With catalytic decomposition room（9）, which is characterized in that further include heat exchanger, heater（8）With internal circulating fan（10）, wherein absorption
Adsorbent is equipped in desorption chamber, adsorption/desorption room is equipped with waste gas inlet（1）, desorption gas gas outlet（6）, exhaust outlet（4）With
Gas import is desorbed（5）, gas import is desorbed（5）With internal circulating fan（10）One end be connected to by pipeline, internal circulating fan
（10）The other end, heat exchanger, heater（8）With catalytic decomposition room（9）One end be sequentially connected, be catalytically decomposed room（9）It is another
One end is connect with heat exchanger, heat exchanger and desorption gas gas outlet（6）Connection；
Adsorption/desorption room includes primary adsorption desorption chamber（2）With secondary absorption desorption chamber（3）, a desorption gas import（5）, exhaust gas
Air inlet（1）With desorption gas gas outlet（6）It is each provided at primary adsorption desorption chamber（2）On, primary adsorption desorption chamber（2）It is inhaled with two level
Attached desorption chamber（3）Connection, another desorption gas import（5）And exhaust outlet（4）It is each provided at secondary absorption desorption chamber（3）On；Heat exchange
The series of device is adjustable, and heat exchanger series is determined according to gas temperature after heat exchange, and air temperature ranges are 80~200 DEG C after heat exchange.
2. a kind of low concentration according to claim 1, Wind Volume, high peculiar smell exhaust gas concentrate energy equipment, feature exists
In heat exchanger is by first-class heat exchanger（71）, secondary heat exchanger（72）With three-level heat exchanger（73）It is sequentially connected in series, level-one heat exchange
Device（71）Upper side and secondary heat exchanger（72）Upper side connection, secondary heat exchanger（72）Downside and three-level heat exchanger
（73）Downside connection, three-level heat exchanger（73）With heater（8）Inlet communication, three-level heat exchanger（73）Upper side with
Room is catalytically decomposed（9）Connection, first-class heat exchanger（71）With desorption gas gas outlet（6）Connection.
3. a kind of low concentration according to claim 1, Wind Volume, high peculiar smell exhaust gas concentrate energy equipment, feature exists
In primary adsorption desorption chamber（2）, secondary absorption desorption chamber（3）Used adsorbent, according to the composition of air source and concentration point
Cloth is sorbent material of the same race.
4. a kind of low concentration according to claim 1, Wind Volume, high peculiar smell exhaust gas concentrate energy equipment, feature exists
In primary adsorption desorption chamber（2）, secondary absorption desorption chamber（3）Used adsorbent, according to the composition of air source and concentration point
Cloth is different types of sorbent material.
5. a kind of low concentration according to claim 1, Wind Volume, high peculiar smell exhaust gas concentrate energy equipment, feature exists
In primary adsorption desorption chamber（2）With secondary absorption desorption chamber（3）Interior adsorbent bed layered arrangement.
6. a kind of low concentration, Wind Volume, high peculiar smell exhaust gas concentrate energy technique, which is characterized in that industrial waste gas passes through right
It is required that a kind of low concentration, Wind Volume, high peculiar smell exhaust gas concentration energy equipment described in 1 are handled, step is：
A, from waste gas inlet（1）The industrial waste gas of entrance passes through primary adsorption desorption chamber（2）, a part of contaminant component is one
Grade adsorption/desorption room（2）Adsorbent on Adsorption；
B, the weaker contaminant remaining component of another part adsorption capacity enters secondary absorption desorption chamber（3）, it is desorbed by secondary absorption
Room（3）Adsorbent absorption, pure air is by exhaust outlet（4）Discharge, this is adsorption process；
C, internal circulating fan（10）Aspirate cleaning, the high temperature air of heat exchanger discharge；By two desorption gas imports（5）While into
Enter secondary absorption desorption chamber（3）With primary adsorption desorption chamber（2）It is interior；
D, it is desorbed through heating power, secondary absorption desorption chamber（3）With primary adsorption desorption chamber（2）It is attached in interior adsorbent surface and duct
The gas molecule parsing, is back to gas phase, is mixed with carrier gas, low-temperature mixed gas is formed, by desorption gas gas outlet again（6）Row
Go out, this is desorption process；
E, the low-temperature mixed gas after desorption passes through first-class heat exchanger successively（71）, secondary heat exchanger（72）, three-level heat exchanger（73）
And heater（8）It is warming up to catalytic decomposition temperature, into catalytic decomposition room（9）Burning, this is catalyticing combustion process；
F, catalyticing combustion process discharges heat, and the taken heat part of high-temperature gas heats adsorption/desorption as the heat source of heat exchanger
The low-temperature mixed gas of room discharge, another part heat is with carrier gas by internal circulating fan（10）Suction is sent into level-one simultaneously respectively
Adsorption/desorption room（2）With secondary absorption desorption chamber（3）Adsorbent heating power is desorbed, step C, D and E are repeated.
7. a kind of low concentration according to claim 6, Wind Volume, high peculiar smell exhaust gas concentrate energy technique, feature exists
In catalytic decomposition room（9）, heat exchanger and heater（8）Out temperature can need to adjust according to technique, catalysis point
Gas temperature before solution can pass through heater（8）It compensates to catalysis oxidation required temperature.
8. a kind of low concentration according to claim 6, Wind Volume, high peculiar smell exhaust gas concentrate energy technique, feature exists
In catalytic decomposition needs to carry out at a certain temperature, and temperature range is 300~380 DEG C.
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| CN106123128A (en) * | 2016-08-16 | 2016-11-16 | 中船重工鹏力（南京）超低温技术有限公司 | A kind of indoor harmful gas removal device based on low temperature cold source |
| CN106422651A (en) * | 2016-11-17 | 2017-02-22 | 南京大学环境规划设计研究院有限公司 | Inert gas protection system for industrial adsorber and operation control method thereof |
| CN106492605A (en) * | 2016-11-22 | 2017-03-15 | 徐亚军 | A kind of multi-stage combination, the Treatment process of circular treatment volatile organic compoundses |
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| CN107344069A (en) * | 2017-03-22 | 2017-11-14 | 广州黑马科技有限公司 | A kind of organic waste gas treatment device |
| CN107998821A (en) * | 2017-12-30 | 2018-05-08 | 和和乐和（天津）环境科技有限公司 | A kind of fixed bed zeolite VOC exhaust treatment systems |
| CN108704442A (en) * | 2018-07-05 | 2018-10-26 | 江苏中科睿赛污染控制工程有限公司 | A kind of purifier and its purification method |
| CN111389175B (en) * | 2020-03-11 | 2021-04-30 | 南京大学环境规划设计研究院集团股份公司 | Series targeted adsorption and parallel desorption organic waste gas treatment device |
| CN115155308B (en) * | 2022-07-27 | 2023-02-10 | 浙江华跃环境科技有限公司 | VOCs exhaust-gas treatment system |
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