CN105020832A - Integrated air conditioning unit suitable for interior of subway train - Google Patents

Integrated air conditioning unit suitable for interior of subway train Download PDF

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Publication number
CN105020832A
CN105020832A CN201510412108.6A CN201510412108A CN105020832A CN 105020832 A CN105020832 A CN 105020832A CN 201510412108 A CN201510412108 A CN 201510412108A CN 105020832 A CN105020832 A CN 105020832A
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CN
China
Prior art keywords
air
water
unit
subway
pipe
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Granted
Application number
CN201510412108.6A
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Chinese (zh)
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CN105020832B (en
Inventor
黄翔
苏晓青
吕伟华
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Ansen (Guangzhou) Environmental Energy Technology Co., Ltd.
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Xian Polytechnic University
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Priority to CN201510412108.6A priority Critical patent/CN105020832B/en
Publication of CN105020832A publication Critical patent/CN105020832A/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00Ventilation
    • F24F7/04Ventilation with ducting systems also by double walls; with natural circulation
    • F24F7/06Ventilation with ducting systems also by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F24F7/08Ventilation with ducting systems also by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F12/00Use of energy recovery systems in air conditioning, ventilation or screening
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements

Abstract

The invention discloses an integrated air conditioning unit suitable for the interior of a subway train. The integrated air conditioning unit comprises a unit shell. An upper air duct and a lower air duct parallel to the upper air duct are formed in the unit shell. A fresh air opening a and an air supply opening are formed in the corresponding side wall of an inlet and the corresponding side wall of an outlet of the upper air duct respectively. A fresh air opening b and an exhaust outlet are formed in the corresponding side wall of an inlet and the corresponding side wall of an outlet of the lower air duct respectively. A fresh return air mixing chamber, a filter, a vertical-tube indirect evaporative cooler and an evaporation unit are sequentially arranged in the upper air duct and located between the fresh air opening a and the air supply opening. A condensing unit, a compressor and an exhaust fan are arranged in the lower air duct and located between the fresh air opening b and the exhaust outlet. According to the integrated air conditioning unit, a chilled water system, a cooling water system and a cooling tower are omitted, and the integrated air conditioning unit has the characteristics of being high in refrigeration efficiency, low in conveying energy consumption, small in occupied space, capable of saving energy, environmentally friendly and economical.

Description

Be applicable to the integrated air conditioner unit in subway
Technical field
The invention belongs to air conditioner technical field, be specifically related to a kind of integrated air conditioner unit be applicable in subway.
Background technology
Subway ventilation air-conditioning system forms primarily of subway concourse, platform ventilation and air conditioning system, equipment control ventilation and air conditioning system and air-conditioner water system.And as a rule, equipment in subway ventilation air-conditioning system mainly contains handpiece Water Chilling Units, air-treatment unit and cooling tower, its operational mode is: chilled water handpiece Water Chilling Units produced is sent in air-treatment unit, carry out cool-down dehumidification process to the new wind in outdoor, the cooling water of cooling tower to absorption condensation heat cools.
As can be seen here, the air-conditioning equipment comprised in the large and small system of subway ventilation air-conditioning is more, and this just causes floor space large, and more complicated arranged by pipeline; In addition, larger energy consumption can be produced in cooling water, chilled water transmission & distribution process.Therefore, develop that a kind of floor space is little, pipeline arrange simple, energy consumption lower ground iron air-conditioning seem particularly important.
Summary of the invention
The object of the present invention is to provide a kind of integrated air conditioner unit be applicable in subway, solve that more, the floor space of air-conditioning equipment that the large and small system of existing subway ventilation air-conditioning exists is large, pipeline complicated layout and the larger problem of energy consumption.
The technical solution adopted in the present invention is, is applicable to the integrated air conditioner unit in subway, includes machine unit shell, forms the upper air duct be arranged in parallel and lower air duct in machine unit shell; The import that upper air duct is corresponding and outlet two side are respectively arranged with fresh wind port a, air outlet; The import that lower air duct is corresponding and outlet two side are respectively arranged with fresh wind port b, exhaust outlet;
In upper air duct: be disposed with new return air mixing chamber, filter, standpipe indirect evaporation cooler and evaporation element between fresh wind port a and air outlet;
In lower air duct: be disposed with condensing unit, compressor and exhaust blower between fresh wind port b and exhaust outlet;
Evaporation element, condensing unit and compressor are connected by pipe network.
Feature of the present invention is also:
Air-valve is provided with in fresh wind port a and fresh wind port b.
New return air mixing chamber top is provided with return air inlet;
Blowing unit is provided with in new return air mixing chamber.
Air-valve is provided with in return air inlet;
What blowing unit adopted is forced blower fan.
Evaporation element is made up of evaporimeter and the water tank b be arranged at below evaporimeter, and water tank b was connected with the water tank a in standpipe indirect evaporation cooler by communicating pipe;
Condensing unit, includes condenser, and the top of condenser is provided with shower, shower is provided with multiple nozzle b towards condenser spray; The below of condenser is provided with water tank c, and water tank c is connected with shower by water pipe, water pipe is provided with water pump b;
Evaporimeter, condenser are connected with compressor by pipe network.
Standpipe indirect evaporation cooler, includes vertical heat exchanging pipe group, and the top of vertical heat exchanging pipe group is provided with water distributor, water distributor is evenly provided with multiple nozzle a towards vertical heat exchanging pipe group spray; The below of vertical heat exchanging pipe group is provided with water tank a, and water tank a is connected with water distributor by feed pipe, and water tank a is also connected with the water tank b in evaporation element by communicating pipe; Form air channel between vertical heat exchanging Guan Zuyu water tank a, the machine unit shell sidewall that air channel is corresponding is provided with overfiren air port.
Machine unit shell roof corresponding above water fender is provided with air outlet.
Vertical heat exchanging pipe group is made up of the heat exchanger tube that many are vertically arranged.
Feed pipe is provided with water pump a.
The water side of evaporimeter is connected with compressor by the first pipeline, compressor is connected with the water inlet end of condenser by second pipe, the water side of condenser is connected with the water inlet end of evaporimeter by the 3rd pipeline, and the 3rd pipeline is provided with choke valve, forms refrigerant system.
Beneficial effect of the present invention is:
1. evaporation cooling technique combines with mechanical refrigeration techniques by integrated air conditioner unit of the present invention, achieve the multistep treatment to the new wind in outdoor: first with indirect evaporation cooler to outdoor pre-cooling of fresh air, with evaporimeter, cool-down dehumidification process is carried out to it again, reach required temperature and the requirement of humidity, send into subway concourse and the platform of subway.
2. have employed the evaporimeter carrying low-temperature receiver in integrated air conditioner unit of the present invention, eliminate chilled water system, by square under the vaporizers, water tank is set, collect the condensate water of evaporimeter, condensate water can flow into for standpipe type indirect evaporation cooler application in the water tank of standpipe type indirect evaporation cooler, effectively the temperature of reduction recirculated water; Condenser adopts the form of unit evaporating type condensing, by taking away the condensation heat of cold-producing medium at condenser surface water spray and forced ventilation, eliminates cooling tower and cooling water system.
3. integrated air conditioner unit of the present invention, its unit inside is divided into upper and lower two air passage portions; Upper air duct realizes the process to the new wind in outdoor, and the condensation heat of lower air duct to cold-producing medium processes; Whole unit is arranged more convenient, flexible, is convenient to I&M.
4. integrated air conditioner unit of the present invention, the pressure fan of its inside adopts forced pressure fan, eliminates secondary exhausting machine.
5. integrated air conditioner unit of the present invention, indirect evaporation cooler adopts standpipe indirect evaporation cooler, vertical, reduces the size of collator.
6. integrated air conditioner unit of the present invention not only has the high advantage of refrigerating efficiency, also reduces conveying energy consumption, makes unit more energy-conservation.
Accompanying drawing explanation
Fig. 1 is the structural representation of integrated air conditioner unit of the present invention.
In figure: 1. fresh wind port a, 2. return air inlet, 3. new return air mixing chamber, 4. filter, 5. water fender, 6. nozzle a, 7. heat exchanger tube, 8. evaporimeter, 9. water pump a, 10. overfiren air port, 11. water tank a, 12. communicating pipes, 13. water tank b, 14. blowing units, 15. air outlets, 16. fresh wind port b, 17. nozzle b, 18. water tank c, 19. condensers, 20. water pump b, 21. choke valves, 22. compressors, 23. exhaust blowers, 24. exhaust outlets, 25. water pipes, 26. feed pipes, 27. air outlets, G1. the first pipeline, G2. second pipe, G3. the 3rd pipeline.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
The present invention is applicable to the integrated air conditioner unit in subway, its structure as shown in Figure 1, include machine unit shell, in machine unit shell, form the upper air duct be arranged in parallel and lower air duct, the import that upper air duct is corresponding and outlet two side are respectively arranged with fresh wind port a1, air outlet 15; The import that lower air duct is corresponding and outlet two side are respectively arranged with fresh wind port b16, exhaust outlet 24; In upper air duct: be disposed with new return air mixing chamber 3, filter 4, standpipe indirect evaporation cooler and evaporation element between fresh wind port a1 and air outlet 15; In lower air duct: be disposed with condensing unit, compressor 22 and exhaust blower 23 between fresh wind port b16 and exhaust outlet 24; Evaporation element, condensing unit and compressor 22 is connected by pipe network.
Air-valve is provided with, for regulating the size of resh air requirement in fresh wind port a1 and fresh wind port b16.
New return air mixing chamber 3 top is provided with return air inlet 2, is provided with air-valve in return air inlet 2, for regulating the size of return air amount; Blowing unit 14 is provided with in new return air mixing chamber 3; What blowing unit 14 adopted is forced blower fan.
Evaporation element is made up of evaporimeter 8 and the water tank b13 be arranged at below evaporimeter.
Condensing unit, includes condenser 19, and the top of condenser 19 is provided with shower, shower is provided with multiple nozzle b17 sprayed towards condenser 19; The below of condenser 19 is provided with water tank c18, and water tank c18 is connected with shower by water pipe 25, water pipe 25 is provided with water pump b20; Evaporimeter 8, condenser 19 are connected with compressor 22 by pipe network.
The water side of evaporimeter 8 is connected with compressor 22 by the first pipeline G1, compressor 22 is connected with the water inlet end of condenser 19 by second pipe G2, the water side of condenser 19 is connected with the water inlet end of evaporimeter 8 by the 3rd pipeline G3,3rd pipeline G3 is provided with choke valve 21, forms refrigerant system.
Standpipe indirect evaporation cooler, includes vertical heat exchanging pipe group, and the top of vertical heat exchanging pipe group is disposed with water distributor and water fender 5, water distributor is evenly provided with multiple nozzle a6 towards vertical heat exchanging pipe group spray; The below of vertical heat exchanging pipe group is provided with water tank a11, and water tank a11 is connected with water distributor by feed pipe 26, feed pipe is provided with water pump a9, and water tank a11 is also by being connected with the water tank b13 in evaporation element communicating pipe 12; Form air channel between vertical heat exchanging Guan Zuyu water tank a11, the machine unit shell sidewall that air channel is corresponding is provided with overfiren air port 10.
Machine unit shell roof corresponding above water fender 5 is provided with air outlet 27.
Vertical heat exchanging pipe group is made up of the heat exchanger tube 7 that many are vertically arranged.
Volume control damper is provided with in overfiren air port 10.
The effect that the present invention is applicable to critical piece in the integrated air conditioner unit in subway is as follows:
Being provided with the air-valve controlling air quantity in fresh wind port a1 and return air inlet 2, entering resh air requirement in upper air duct and return air amount for regulating.
Filter 4: for filtering out dust in new wind and return air and impurity.
Standpipe indirect evaporation cooler: cool for closing wind to new wind, return air or new back-mixing, water tank a11 in its neutral tube indirect evaporation cooler is connected by communicating pipe 12 with the water tank b13 in evaporation element, the condensate water in water tank b13 can be utilized, effectively reduce the temperature of recirculated water, thus improve evaporative cooling efficiency; In addition, have employed vertical heat exchanging pipe group in standpipe indirect evaporation cooler, the size of unit can be effectively reduced.
Refrigerant system: its inside is provided with evaporation element, condensing unit, compressor 22 and choke valve 21; Wherein, the evaporimeter 8 in evaporation element carries low-temperature receiver, eliminates chilled water system; Condenser 19 in condensing unit adopts the form of evaporating type condensing, utilizes nozzle b17 to condenser 19 surface sprinkling, and is taken away the condensation heat of cold-producing medium by forced ventilation, eliminate cooling tower and cooling water system.
The present invention is applicable to the integrated air conditioner unit in subway, and its workflow is as follows:
(1) work of wind system is as follows:
Supply air system:
Outdoor new wind enters in the upper air duct in machine unit shell by fresh wind port a1, the return air of subway subway concourse, platform also enters in the upper air duct in machine unit shell by return air inlet 2; In being in the wind: new wind mixes at new return air mixing chamber 3 with return air, then through filter 4 filtration, purification, flow into afterwards in standpipe indirect evaporation cooler, heat exchange is carried out with the moisture film outside many vertical heat exchanging pipes, air is by precooling, air after precooling continues to flow in evaporation element, after carrying out the humiture that cool-down dehumidification reaches required, sends into subway concourse, platform and equipment room by air outlet 15 by evaporimeter 8.
Auxiliary air enters in standpipe indirect evaporation cooler by overfiren air port 10, flow in many heat exchanger tubes from bottom to top, with through nozzle a6, the recirculated water sprayed in heat exchanger tube 7 carries out hot and humid area, after the processed air outside cooling heat transferring pipe, discharged by air outlet 27.
Exhaust system:
Outdoor air is entered in the lower air duct in machine unit shell by fresh wind port b16, in lower air duct: the condenser 19 in outdoor air and condensing unit carries out hot and humid area, takes away the condensation heat of cold-producing medium, is discharged afterwards under the effect of exhaust blower 23 by exhaust outlet 24.
(2) course of work of water system is as follows:
Be provided with water tank b13 below the evaporimeter 8 of evaporation element, the low-temperature condensate in water tank b13 by being transported to communicating pipe 12 in the water tank a11 in standpipe type indirect evaporation cooler, for reducing the temperature of recirculated water in water tank a11; Recirculated water in water tank a11 is transported in the nozzle a6 that water distributor is arranged under water pump a9 effect through feed pipe 26, by nozzle a6 by Water spray in many heat exchanger tubes 7, hot and humid area is carried out, the processed air outside cooling heat transferring pipe 7 with the auxiliary air flowed through in heat exchanger tube 7.
In condensing unit: the recirculated water in water tank c18 pressurizes through water pump b20 and promotes, shower is given by water pipe 25, by the multiple nozzle b17 on shower by Water spray on condenser 19, the moisture film on condenser 19 surface carries out hot and humid area with the outdoor air entered in lower air duct through fresh wind port b16, the condensation heat of condenser 19 is taken away by outdoor air, unevaporated recirculated water falls back in water tank c18, so circulates.
(3) course of work of refrigerant system:
Cold-producing medium becomes the refrigerant gas of HTHP after compressor 22 compresses, condenser 19 condensation heat release is delivered into through second pipe G2, heat is taken away by outdoor air, cold-producing medium becomes the liquid of cryogenic high pressure, the refrigerant liquid of low-temp low-pressure is become again after the 3rd pipeline G3 enters choke valve 21, evaporimeter 8 evaporation endothermic is entered finally by the 3rd pipeline G3, to the dehumidifying of processed air cooling-down, cold-producing medium becomes the gas of high-temperature low-pressure, got back in compressor 22 through the first pipeline G1 by evaporimeter 8 again, so circulate.
The present invention is applicable to form upper air duct, lower air duct in the integrated air conditioner unit in subway; Parts in upper air duct are used for processing the new wind in outdoor and return air; Parts in lower air duct are used for processing the condensation heat of cold-producing medium; Whole unit is arranged more convenient, flexible, is convenient to I&M; The mode that evaporation element wherein adopts evaporimeter 8 to be combined with water tank b13 eliminates chilled water system, and condensing unit adopts the form of evaporative condenser, eliminates the setting of cooling water system and cooling tower.The present invention's integrated air conditioner unit be applicable in subway has that refrigerating efficiency is high, conveying energy consumption is low, floor space is little, the feature of energy-conserving and environment-protective and economy.

Claims (10)

1. be applicable to the integrated air conditioner unit in subway, it is characterized in that, include machine unit shell, in described machine unit shell, form the upper air duct be arranged in parallel and lower air duct; Import corresponding to described upper air duct and outlet two side are respectively arranged with fresh wind port a(1), air outlet (15); Import corresponding to described lower air duct and outlet two side are respectively arranged with fresh wind port b(16), exhaust outlet (24);
In described upper air duct: at fresh wind port a(1) and air outlet (15) between be disposed with new return air mixing chamber (3), filter (4), standpipe indirect evaporation cooler and evaporation element;
In described lower air duct: at fresh wind port b(16) and exhaust outlet (24) between be disposed with condensing unit, compressor (22) and exhaust blower (23);
Described evaporation element, condensing unit and compressor (22) are connected by pipe network.
2. the integrated air conditioner unit be applicable in subway according to claim 1, is characterized in that, described fresh wind port a(1) and fresh wind port b(16) in be provided with air-valve.
3. the integrated air conditioner unit be applicable in subway according to claim 1, is characterized in that, described new return air mixing chamber (3) top is provided with return air inlet (2);
Blowing unit (14) is provided with in described new return air mixing chamber (3).
4. the integrated air conditioner unit be applicable in subway according to claim 3, is characterized in that, described return air inlet is provided with air-valve in (2);
What described blowing unit (14) adopted is forced blower fan.
5. the integrated air conditioner unit be applicable in subway according to claim 1, it is characterized in that, described evaporation element is by evaporimeter (8) and the water tank b(13 that is arranged at below evaporimeter) form, described water tank b(13) by communicating pipe (12) and the water tank a(11 in standpipe indirect evaporation cooler) be connected;
Described condensing unit, includes condenser (19), and the top of described condenser (19) is provided with shower, described shower is provided with multiple nozzle b(17 sprayed towards condenser (19)); The below of described condenser (19) is provided with water tank c(18), described water tank c(18) be connected with shower by water pipe (25), (25) are provided with water pump b(20 to described water pipe);
Described evaporimeter (8), condenser (19) are connected with compressor (22) by pipe network.
6. be applicable to the integrated air conditioner unit in subway according to claim 1 or 5, it is characterized in that, described standpipe indirect evaporation cooler, include vertical heat exchanging pipe group, the top of described vertical heat exchanging pipe group is provided with water distributor, described water distributor is evenly provided with multiple nozzle a(6 towards vertical heat exchanging pipe group spray);
The below of described vertical heat exchanging pipe group is provided with water tank a(11), described water tank a(11) be connected with water distributor by feed pipe (26), described water tank a(11) also by communicating pipe (12) and the water tank b(13 in evaporation element) be connected;
Described vertical heat exchanging Guan Zuyu water tank a(11) between form air channel, the machine unit shell sidewall that described air channel is corresponding is provided with overfiren air port (10).
7. the integrated air conditioner unit be applicable in subway according to claim 6, is characterized in that, the machine unit shell roof that described water fender (5) top is corresponding is provided with air outlet (27).
8. the integrated air conditioner unit be applicable in subway according to claim 6, is characterized in that, described vertical heat exchanging pipe group is made up of the heat exchanger tube (7) that many are vertically arranged.
9. the integrated air conditioner unit be applicable in subway according to claim 6, is characterized in that, (26) are provided with water pump a(9 with described feed pipe).
10. the integrated air conditioner unit be applicable in subway according to claim 5, it is characterized in that, the water side of described evaporimeter (8) is connected with compressor (22) by the first pipeline (G1), described compressor (22) is connected by the water inlet end of second pipe (G2) with condenser (19), the water side of described condenser (19) is connected with the water inlet end of evaporimeter (8) by the 3rd pipeline (G3), described 3rd pipeline (G3) is provided with choke valve (21), forms refrigerant system.
CN201510412108.6A 2015-07-14 2015-07-14 Suitable for the integrated air conditioner unit in subway Active CN105020832B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105276735A (en) * 2015-11-20 2016-01-27 西安工程大学 Evaporative cooling-mechanical refrigerating combined air conditioning system utilizing subway tunnel to radiate
CN106765685A (en) * 2017-01-23 2017-05-31 东南大学 A kind of heat pump driven indirect evaporating-cooling return air full heat recovery fresh air processing unit

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2184557A1 (en) * 2008-11-07 2010-05-12 TROX GmbH Ventilation system
CN202024424U (en) * 2011-04-19 2011-11-02 西安工程大学 Pipe heat recovery type evaporative cooling air conditioning set for equipment room
CN104006469A (en) * 2014-05-23 2014-08-27 西安工程大学 Evaporative cooling and mechanical refrigeration combined variable air duct energy-saving air conditioning unit
CN203893343U (en) * 2014-05-30 2014-10-22 西安工程大学 Integrated air conditioning unit combining evaporative cooling and mechanical refrigeration

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2184557A1 (en) * 2008-11-07 2010-05-12 TROX GmbH Ventilation system
CN202024424U (en) * 2011-04-19 2011-11-02 西安工程大学 Pipe heat recovery type evaporative cooling air conditioning set for equipment room
CN104006469A (en) * 2014-05-23 2014-08-27 西安工程大学 Evaporative cooling and mechanical refrigeration combined variable air duct energy-saving air conditioning unit
CN203893343U (en) * 2014-05-30 2014-10-22 西安工程大学 Integrated air conditioning unit combining evaporative cooling and mechanical refrigeration

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105276735A (en) * 2015-11-20 2016-01-27 西安工程大学 Evaporative cooling-mechanical refrigerating combined air conditioning system utilizing subway tunnel to radiate
CN106765685A (en) * 2017-01-23 2017-05-31 东南大学 A kind of heat pump driven indirect evaporating-cooling return air full heat recovery fresh air processing unit

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Effective date of registration: 20190723

Address after: 511400 Dajian Road Section 4, East of Nansha Avenue, Dongyong Town, Nansha District, Guangzhou City, Guangdong Province

Patentee after: Ansen (Guangzhou) Environmental Energy Technology Co., Ltd.

Address before: 710048 Shaanxi city of Xi'an Province Jinhua Road No. 19

Patentee before: Xi'an Engineering Univ.