CN107051116A - A kind of organic waste gas treatment system - Google Patents
A kind of organic waste gas treatment system Download PDFInfo
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- CN107051116A CN107051116A CN201710403099.3A CN201710403099A CN107051116A CN 107051116 A CN107051116 A CN 107051116A CN 201710403099 A CN201710403099 A CN 201710403099A CN 107051116 A CN107051116 A CN 107051116A
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- branch road
- treatment system
- oxidation reactor
- waste gas
- blower fan
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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
- B01D53/06—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
- B01D53/343—Heat recovery
-
- 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
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
- B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
- B01D2259/4009—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating using hot gas
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Incineration Of Waste (AREA)
Abstract
The invention provides a kind of organic waste gas treatment system, including absorbing unit, oxidation unit and First Heat Exchanger (12), absorbing unit includes the first blower fan (2), adsorption runner (5) and the first delivery pipe (6)；Oxidation unit includes the second blower fan (8), oxidation reactor and the second delivery pipe (13)；One delivery pipe of pipeline connection second (13) of First Heat Exchanger (12) and oxidation reactor, another pipeline connection desorption branch road (7)；The gas outlet of first blower fan (2) is connected with cooling branch road (3) in parallel and absorption branch road (4)；Cooling zone of the one end and cooling branch road (3) of desorption branch road (7) with adsorption runner (5) is connected, and the renewing zone of the other end of desorption branch road (7) and the air inlet of the second blower fan (8) with adsorption runner (5) is connected.The organic waste gas treatment system that the present invention is provided can be handled VOC waste gas energy-efficiently.
Description
Technical field
The present invention relates to VOCs treatment technical field, more particularly to a kind of organic waste gas treatment system.
Background technology
Meeting when photoelectricity enterprise processing procedure VOC (Volatile Organic Compounds, VOC) is exceeded
Environmental pollution is caused, and harmful, at present, the technique generally existing power consumption of processing VOC waste gas is big, the drawbacks of invest high,
Therefore, VOC waste gas is processed into for those skilled in the art's technical problem urgently to be resolved hurrily how energy-efficiently.
The content of the invention
In view of this, it is an object of the invention to provide a kind of organic waste gas treatment system, the organic waste gas treatment system energy
It is enough that VOC waste gas is handled energy-efficiently.
In order to achieve the above object, the present invention provides following technical scheme：
A kind of organic waste gas treatment system, including absorbing unit, oxidation unit and First Heat Exchanger, the absorbing unit bag
The first blower fan, adsorption runner and the first delivery pipe are included, the oxidation unit includes the second blower fan, oxidation reactor and the second discharge
Pipe；
The adsorption runner includes adsorption zone, renewing zone and cooling zone, and air inlet and the flue gas leading of first blower fan connect
Logical, gas outlet is connected with cooling branch road in parallel and absorption branch road；
The absorption branch road is connected with the adsorption zone of the adsorption runner, and the adsorption zone adsorbs the one of branch road away from described
Side is connected with first delivery pipe；
The cooling branch road is connected with the cooling zone of the adsorption runner, and the renewing zone cools down the one of branch road away from described
Side is connected with desorption branch road, and the described one end of desorption branch road away from the renewing zone is with the cooling zone away from the cooling branch road
Side connection；
The air inlet of second blower fan is connected with side of the renewing zone away from the desorption branch road, gas outlet and institute
State oxidation reactor connection；
Second delivery pipe and the oxidation reactor described in one pipeline connection of the First Heat Exchanger, another pipeline
Connect the desorption branch road.
Preferably, in above-mentioned organic waste gas treatment system, the oxidation reactor is catalyst oxidation reactor.
Preferably, in above-mentioned organic waste gas treatment system, the oxidation unit also includes being arranged on the catalysis oxidation
Heater between reactor and second blower fan.
Preferably, in above-mentioned organic waste gas treatment system, the oxidation unit also includes the second heat exchanger, described second
Catalyst oxidation reactor and First Heat Exchanger described in one pipeline connection of heat exchanger, heater described in another pipeline connection with
Second blower fan.
Preferably, in above-mentioned organic waste gas treatment system, the oxidation reactor is thermal oxidation reactor, the hot oxygen
Change reactor and be provided with natural gas combustion nozzle, the oxidation unit also includes the natural gas tube connected with the natural gas combustion nozzle.
Preferably, in above-mentioned organic waste gas treatment system, the thermal oxidation reactor is provided with three thermal oxidative reactions
Room, three thermal oxidative reaction rooms are interconnected close to one end of the natural gas combustion nozzle, three thermal oxidative reaction rooms
The other end be each provided with three pipelines of parallel connection, one in three pipelines and the gas outlet company of second blower fan
Logical, another is connected with the air inlet of second blower fan, and the last item is connected with second delivery pipe, and on the pipeline
It is provided with switch valve.
Preferably, in above-mentioned organic waste gas treatment system, thermal storage ceramic bed is provided with the thermal oxidative reaction room.
Preferably, in above-mentioned organic waste gas treatment system, the oxidation unit also includes the 4th delivery pipe, the described 4th
The inner chamber that one end of delivery pipe is provided with natural gas combustion nozzle with the thermal oxidation reactor is connected, and the other end is sequentially communicated described
One heat exchanger and second delivery pipe.
It can be seen from above-mentioned technical proposal, in the organic waste gas treatment system that provides of the present invention, be desorbed one end of branch road with
Side connection of the renewing zone of adsorption runner away from cooling branch road, the other end (one end away from renewing zone) is with cooling zone away from cold
But the side connection of branch road, so, the high-temperature gas in desorption branch road is that the cryogenic gas in cooling branch road is heated and obtained
, and a pipeline connection of First Heat Exchanger desorption branch road, another delivery pipe of pipeline connection second and oxidation reactor, because
This, the heat needed for heating cryogenic gas is that the high-temperature gas in the second delivery pipe is provided by First Heat Exchanger.Thus
It can be seen that, the organic waste gas treatment system that the present invention is provided need not introduce additional air to be desorbed adsorption runner, reduce
The live load of adsorption runner, so as to realize the energy-efficient formula processing to VOC waste gas.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 is a kind of schematic diagram for organic waste gas treatment system that the embodiment of the present invention one is provided；
Fig. 2 is a kind of schematic diagram for organic waste gas treatment system that the embodiment of the present invention two is provided.
Marked in figure：
1st, flue gas leading；2nd, the first blower fan；3rd, branch road is cooled down；4th, branch road is adsorbed；5th, adsorption runner；6th, the first delivery pipe；7、
It is desorbed branch road；8th, the second blower fan；9th, the second heat exchanger；10th, heater；11st, catalyst oxidation reactor；12nd, First Heat Exchanger；
13rd, the second delivery pipe；14th, thermal oxidation reactor；15th, natural gas combustion nozzle；16th, thermal storage ceramic bed；17th, switch valve；18th, it is natural
Tracheae；19th, return duct；20th, the 4th delivery pipe；21st, the 3rd delivery pipe.
Embodiment
In order to make it easy to understand, the invention will be further described below in conjunction with the accompanying drawings.
Referring to Fig. 1 and Fig. 2, Fig. 1 is a kind of schematic diagram for organic waste gas treatment system that the embodiment of the present invention one is provided, figure
2 be a kind of schematic diagram for organic waste gas treatment system that the embodiment of the present invention two is provided.
Organic waste gas treatment system provided in an embodiment of the present invention includes absorbing unit, oxidation unit and First Heat Exchanger
12, absorbing unit includes the first blower fan 2, the delivery pipe 6 of adsorption runner 5 and first, and oxidation unit includes the second blower fan 8, oxidation instead
Answer device and the second delivery pipe 13.
Adsorption runner 5 includes adsorption zone, renewing zone and cooling zone, and the air inlet of the first blower fan 2 is connected with flue gas leading 1, gone out
Gas port is connected with cooling branch road 3 in parallel and absorption branch road 4, wherein, cooling branch road 3 is connected with the cooling zone of adsorption runner 5, is inhaled
Attached branch road 4 is connected with the adsorption zone of adsorption runner 5, and the first delivery pipe 6 is connected with side of the adsorption zone away from absorption branch road 4.
The one end for being desorbed branch road 7 is connected with side of the renewing zone away from cooling branch road 3, the other end (one away from renewing zone
End) connected with side of the cooling zone away from cooling branch road 3, the pipeline connection desorption branch road 7 of First Heat Exchanger 12, another
The second delivery pipe of pipeline connection 13 and oxidation reactor.
The air inlet of second blower fan 8 is connected with side of the renewing zone away from desorption branch road 7, and gas outlet connects with oxidation reactor
It is logical.
The operation principle of organic waste gas treatment system provided in an embodiment of the present invention is：
Organic exhaust gas enters the first blower fan 2 from flue gas leading 1, and two-way is divided into afterwards, is inhaled wherein entering all the way from absorption branch road 4
The adsorption zone of attached runner 5, is discharged after completing adsorption cleaning from the first delivery pipe 6, and with the revolution of adsorption runner 5, close to suction
The adsorption runner 5 of attached saturation state enters renewing zone, in renewing zone, adsorption runner 5 and the high-temperature gas from desorption branch road 7
Contact, then organic compound is desorbed, and adsorption runner 5 is regenerated.
Another road after first blower fan 2 enters the cooling zone of adsorption runner 5 from cooling branch road 3, and the absorption after regeneration turns
Wheel 5 then returnes to adsorption zone by being cooled during cooling zone by the cryogenic gas from cooling branch road 3, completes to adsorb/take off
The cyclic process of attached/cooling.
The gas of branch road 7 is desorbed behind the renewing zone of adsorption runner 5, is changed into the organic exhaust gas of high concentration, passes through second
The gas up to standard that blower fan 8 enters after oxidation reactor, oxidation reaction is discharged from the second delivery pipe 13.
From Fig. 1 and Fig. 2, the high-temperature gas in desorption branch road 7 is that the cryogenic gas in cooling branch road 3 is heated and obtained
Arrive, and it is that the high-temperature gas in the second delivery pipe 13 is provided by First Heat Exchanger 12 to heat required heat.Thus
It can be seen that, the organic waste gas treatment system that the present invention is provided need not introduce additional air to be desorbed adsorption runner 5, reduce
The live load of adsorption runner 5, so as to realize the energy-efficient formula processing to VOC waste gas.
In the present invention, embodiment one is to employ different oxidation reactors from the difference of embodiment two, wherein, implement
Example one uses catalyst oxidation reactor 11, and embodiment two uses thermal oxidation reactor 14.
Referring to Fig. 1, in embodiment one, oxidation unit also include being arranged on the blower fan 8 of catalyst oxidation reactor 11 and second it
Between heater 10, heater 10 is used to preheat the organic exhaust gas of high concentration, is that oxidation reaction is prepared.
In order to reduce energy consumption, reduce as far as possible in the use of heater 10, embodiment one, oxidation unit also includes the second heat exchange
Device 9, the pipeline connection catalyst oxidation reactor 11 and First Heat Exchanger 12 of the second heat exchanger 9, another pipeline connection adds
The hot blower fan 8 of device 10 and second, so, after organic waste gas treatment system is behaved, can close heater 10, and utilize oxygen
Change reacted high-temperature gas to preheat the organic exhaust gas of high concentration.
Referring to Fig. 2, in embodiment two, thermal oxidation reactor 14 is provided with natural gas combustion nozzle 15, oxidation unit also include with
Needed for the natural gas tube 18 that natural gas combustion nozzle 15 is connected, the combustion of natural gas release thermal oxidation reactor 14 that natural gas tube 18 is sent
Heat.
In embodiment two, thermal oxidation reactor 14 is provided with three thermal oxidative reaction rooms (unmarked in figure), three hot oxygen
Change reative cell to be interconnected close to one end of natural gas combustion nozzle 15, the other end of three thermal oxidative reaction rooms is each provided with parallel connection
Three pipelines, one in three pipelines connects with the gas outlet of the second blower fan 8, another with the air inlet of the second blower fan 8
Connection, the last item is connected with the second delivery pipe 13, and switch valve 17 is provided with pipeline.
As shown in Fig. 2 setting thermal storage ceramic bed 16 in embodiment two, in thermal oxidative reaction room, thermal oxidative reaction room passes through
Return duct 19 is connected with the air inlet of the second blower fan 8, is connected by the 4th delivery pipe 20 with the second delivery pipe 13.
By setting return duct 19 and three thermal oxidative reaction rooms, the organic waste gas treatment system that embodiment two is provided is realized
Extra fresh air is not introduced as purgative gas, the purpose of heat-energy losses and operating cost is reduced, specific Cleaning principle is：
By controlling switch valve 17, in any instant of system operation, it is ensured that in three thermal oxidative reaction rooms one with
The gas outlet conducting of second blower fan 8, is used as the exhaust gas entrance of thermal oxidation reactor 14；Another is turned on the second delivery pipe 13,
It is used as the clean gas outlet of thermal oxidation reactor 14；The air inlet of last and the second blower fan 8 is turned on, and is used as thermal oxidative reaction
The purgative gas outlet of device 14 (purgative gas and purified gas are all the oxidized reacted gas of waste gas).When being used as thermal oxidation reactor
Run after a period of time, it is necessary to be cleaned to it, at this moment, by controlling switching valve the thermal oxidative reaction room of 14 exhaust gas entrance
Door 17, makes three thermal oxidative reaction rooms synchronously complete following function switching：Exhaust gas entrance originally switches to purgative gas to export (gas
Direction of flow changes), purgative gas outlet originally switches to clean gas outlet (gas flow is constant), and clean gas outlet originally is cut
It is changed to exhaust gas entrance (gas flow change).
After original purgative gas outlet operation a period of time, gas is completely up to standard, therefore can be from second
Delivery pipe 13 is discharged and (can switch to clean gas outlet), and original exhaust gas entrance switches to purgative gas to export, with gas
The change of direction of flow, a part of below standard gas meeting reverse flow, this portion gas can not still be discharged from the second delivery pipe 13,
So needing to return to the air inlet (switching to purgative gas to export) of the second blower fan 8 by return duct 19, one section is continued to run with
After time, the gas in return duct 19 will all be changed into gas up to standard.
As shown in Fig. 2 in order to provide the heat in desorption branch road 7 needed for gas, oxidation unit also includes the 3rd delivery pipe
21, one end of the 3rd delivery pipe 21 is connected with the inner chamber that thermal oxidation reactor 14 is provided with natural gas combustion nozzle 15, and the other end is successively
Connect the delivery pipe 13 of First Heat Exchanger 12 and second.Certainly, in other embodiments, can also successively it be connected by the 4th delivery pipe 20
Lead to the delivery pipe 13 of First Heat Exchanger 12 and second to provide heat.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
A variety of modifications to embodiment will be apparent for those skilled in the art, as defined herein general
Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention will not
It can be restricted to embodiment illustrated herein, and be to fit to consistent with features of novelty with principles disclosed herein most wide
Scope.
Claims (8)
1. a kind of organic waste gas treatment system, it is characterised in that including absorbing unit, oxidation unit and First Heat Exchanger (12),
The absorbing unit includes the first blower fan (2), adsorption runner (5) and the first delivery pipe (6), and the oxidation unit includes the second wind
Machine (8), oxidation reactor and the second delivery pipe (13)；
The adsorption runner (5) includes adsorption zone, renewing zone and cooling zone, the air inlet and flue gas leading of first blower fan (2)
(1) connect, gas outlet is connected with cooling branch road (3) in parallel and absorption branch road (4)；
The absorption branch road (4) connects with the adsorption zone of the adsorption runner (5), and the adsorption zone is away from the absorption branch road
(4) side is connected with first delivery pipe (6)；
The cooling branch road (3) connects with the cooling zone of the adsorption runner (5), and the renewing zone is away from the cooling branch road
(3) side is connected with desorption branch road (7), and one end and the cooling zone away from the renewing zone of the desorption branch road (7) are remote
From the side connection of the cooling branch road (3)；
The side of the air inlet of second blower fan (8) and the renewing zone away from the desorption branch road (7) connect, gas outlet and
The oxidation reactor connection；
Second delivery pipe (13) and the oxidation reactor, another described in one pipeline connection of the First Heat Exchanger (12)
Branch road (7) is desorbed described in pipeline connection.
2. organic waste gas treatment system according to claim 1, it is characterised in that the oxidation reactor is catalysis oxidation
Reactor (11).
3. organic waste gas treatment system according to claim 2, it is characterised in that the oxidation unit also includes being arranged on
Heater (10) between the catalyst oxidation reactor (11) and second blower fan (8).
4. organic waste gas treatment system according to claim 3, it is characterised in that the oxidation unit is also changed including second
Hot device (9), catalyst oxidation reactor (11) and First Heat Exchanger described in a pipeline connection of second heat exchanger (9)
(12), heater (10) described in another pipeline connection and second blower fan (8).
5. organic waste gas treatment system according to claim 1, it is characterised in that the oxidation reactor is that thermal oxide is anti-
Device (14) is answered, the thermal oxidation reactor (14) is provided with natural gas combustion nozzle (15), and the oxidation unit also includes and the day
The natural gas tube (18) of gas-fired burner (15) connection.
6. organic waste gas treatment system according to claim 5, it is characterised in that the thermal oxidation reactor (14) is set
There are three thermal oxidative reaction rooms, three thermal oxidative reaction rooms are interconnected close to one end of the natural gas combustion nozzle (15),
The other end of three thermal oxidative reaction rooms is each provided with one and institute in three pipelines of parallel connection, three pipelines
State the second blower fan (8) gas outlet connection, another connects with the air inlet of second blower fan (8), the last item with it is described
Second delivery pipe (13) is connected, and switch valve (17) is provided with the pipeline.
7. organic waste gas treatment system according to claim 6, it is characterised in that be provided with the thermal oxidative reaction room
Thermal storage ceramic bed (16).
8. organic waste gas treatment system according to claim 6, it is characterised in that the oxidation unit also includes the 3rd row
Pipe (21) is put, one end and the thermal oxidation reactor (14) of the 3rd delivery pipe (21) are provided with natural gas combustion nozzle (15)
Inner chamber is connected, and the other end is sequentially communicated the First Heat Exchanger (12) and second delivery pipe (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710403099.3A CN107051116A (en) | 2017-06-01 | 2017-06-01 | A kind of organic waste gas treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710403099.3A CN107051116A (en) | 2017-06-01 | 2017-06-01 | A kind of organic waste gas treatment system |
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| Publication Number | Publication Date |
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| CN107051116A true CN107051116A (en) | 2017-08-18 |
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ID=59616741
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710403099.3A Pending CN107051116A (en) | 2017-06-01 | 2017-06-01 | A kind of organic waste gas treatment system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107837646A (en) * | 2017-11-28 | 2018-03-27 | 江苏科威环保技术有限公司 | The safe controlling device of more component organic exhaust gas and its technique |
| CN108295620A (en) * | 2018-01-26 | 2018-07-20 | 华北理工大学 | A kind of zeolite rotating cylinder and its adsorption cleaning system |
| CN109001371A (en) * | 2018-05-08 | 2018-12-14 | 净顶新材料科技无锡有限公司 | VOCs molecular sieve runner test macro emergency braking system |
| CN109865394A (en) * | 2017-12-01 | 2019-06-11 | 中外炉工业株式会社 | Exhaust treatment system |
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| CN207042186U (en) * | 2017-06-01 | 2018-02-27 | 上海盛剑环境系统科技有限公司 | A kind of organic waste gas treatment system |
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| CN107837646A (en) * | 2017-11-28 | 2018-03-27 | 江苏科威环保技术有限公司 | The safe controlling device of more component organic exhaust gas and its technique |
| CN109865394A (en) * | 2017-12-01 | 2019-06-11 | 中外炉工业株式会社 | Exhaust treatment system |
| CN108295620A (en) * | 2018-01-26 | 2018-07-20 | 华北理工大学 | A kind of zeolite rotating cylinder and its adsorption cleaning system |
| CN109001371A (en) * | 2018-05-08 | 2018-12-14 | 净顶新材料科技无锡有限公司 | VOCs molecular sieve runner test macro emergency braking system |
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Address after: 201821 room 2, 2 floor, 2, 2229 Yongsheng Road, Jiading District industrial area, Shanghai. Applicant after: Shanghai Sheng Jian environmental system Polytron Technologies Inc Address before: 201821 25F, Taihu Shijia International Building, 1198 De Fu Road, Jiading District, Shanghai Applicant before: SHANGHAI SHENGJIAN ENVIRONMENT SYSTEM TECHNOLOGY CO., LTD. |
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