CN108375247A - A kind of jacket type falling film evaporator - Google Patents

A kind of jacket type falling film evaporator Download PDF

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Publication number
CN108375247A
CN108375247A CN201810314075.5A CN201810314075A CN108375247A CN 108375247 A CN108375247 A CN 108375247A CN 201810314075 A CN201810314075 A CN 201810314075A CN 108375247 A CN108375247 A CN 108375247A
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CN
China
Prior art keywords
heat exchanger
refrigerant
falling film
film evaporator
tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810314075.5A
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Chinese (zh)
Inventor
陈祥华
金峰
葛华兰
赵志强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHEJIANG WAITING NEW ENERGY TECHNOLOGY Co Ltd
Original Assignee
ZHEJIANG WAITING NEW ENERGY TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Priority to CN201810314075.5A priority Critical patent/CN108375247A/en
Publication of CN108375247A publication Critical patent/CN108375247A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • F25B39/00Evaporators; Condensers
    • F25B39/02Evaporators

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The invention discloses a kind of jacket type falling film evaporators, including heat exchanger front head, jacket cylinder, heat exchanger and heat exchanger rear head;The jacket cylinder is equipped with outer housing, interlayer cavity, internal partition and inner chamber body successively from outside to inside, it is isolated by internal partition between the interlayer cavity and the inner chamber body, the internal partition is cylindrical, the internal partition is equipped with multiple refrigerant spray heads, the multiple refrigerant spray head circumferentially arranges, the outer housing is equipped with refrigerant inlet tube and refrigerant outlet tube, and the refrigerant inlet tube, interlayer cavity, refrigerant spray head, inner chamber body and refrigerant outlet tube are sequentially communicated;The heat exchanger is mounted in the inner chamber body of the jacket cylinder, and the heat exchanger front head and heat exchanger rear head are mounted on the both ends of the jacket cylinder.The jacket type falling film evaporator heat exchange efficiency of the present invention is high, and the charging amount of refrigerant is small, additionally has the advantages that compact-sized, easily adjusting, applied widely.

Description

A kind of jacket type falling film evaporator
Technical field
The present invention relates to air-conditioning heat exchanging evaporator fields, are specifically related to a kind of jacket type falling film evaporator.
Background technology
There are many forms for air-conditioning heat exchanging evaporator (water-refrigerant).Common form evaporator master in large-scale handpiece Water Chilling Units There are dry evaporator, full liquid evaporator and falling film evaporator.Wherein flooded evaporator efficiency is higher than dry evaporator, but its Refrigerant charge is more than dry evaporator.
Falling film evaporator is a kind of newer evaporating heat exchanger, has gathered high efficiency feature and the dry type evaporation of full-liquid type The small advantage of device refrigerant charge.Falling film evaporation is that feed liquid is added from falling film evaporator heating room upper tube box, through liquid point Cloth and film formation device are evenly distributed in each heat exchanger tube, under gravity and vacuum induced and airflow function, at uniformly membranaceous from upper And lower flowing.It in flow process, is heated and vaporizes by shell side heat medium, the steam of generation enters point of evaporator with liquid phase jointly From room, through being sufficiently separated, steam enters condenser condensation (single-action operation) or enters lower 1st effective evaporator and is situated between as heating vapour-liquid Matter, to realize that multiple-effect operates, liquid phase is then discharged by separation chamber.
The working efficiency and optimization structure for how further increasing falling film evaporator are that air-conditioning heat exchanging evaporator field is ground The emphasis studied carefully.
Invention content
(1) technical problems to be solved
In view of the deficienciess of the prior art, the present invention provides a kind of jacket type falling film evaporator.
(2) technical solution
In order to achieve the above objectives, the present invention provides a kind of jacket type falling film evaporators, including heat exchanger front head, chuck Cylinder, heat exchanger and heat exchanger rear head;
The jacket cylinder is equipped with outer housing, interlayer cavity, internal partition and inner chamber body, the interlayer cavity successively from outside to inside It is isolated by internal partition between body and the inner chamber body, the internal partition is cylindrical, and the internal partition is equipped with multiple refrigeration Agent spray head, the multiple refrigerant spray head circumferentially arrange, and the outer housing is equipped with refrigerant inlet tube and refrigerant Outlet tube, the refrigerant inlet tube, interlayer cavity, refrigerant spray head, inner chamber body and refrigerant outlet tube are sequentially communicated;
The heat exchanger includes more heat exchanger tubes and heat exchanger tube sheet, and the more heat exchanger tubes are mutually parallel mounted on described On heat exchanger tube sheet;
The heat exchanger is mounted in the inner chamber body of the jacket cylinder, the heat exchanger front head and heat exchanger rear head Mounted on the both ends of the jacket cylinder.
Further, the heat exchanger front head is equipped with cooling water inlet and cooling water liquid outlet.
Further, the heat exchanger front head is equipped with cooling water inlet, and the heat exchanger rear head is equipped with cooling Water liquid outlet.
Further, refrigerant and refrigeration oil recovery port are additionally provided on the outer housing.
Further, the heat exchanger tube includes multiple cooling for reflux circuits.
Further, the multiple refrigerant spray head is evenly distributed on the internal partition.
Further, the multiple refrigerant spray head is arranged in several spray lines, and several sprays line is circumferentially It is evenly distributed.
Further, the spray line faces the heat exchanger tube.
Further, the heat exchanger front head is equipped with mutually isolated backflash and liquid outlet groove, and the backflash is located at The centre position of the heat exchanger front head, the liquid outlet groove are located at the outer ring of the backflash, and the heat exchanger tube includes mutual The heat-exchange tube and return duct of connection, the heat-exchange tube connect with the outer ring of the heat exchanger tube sheet, the return duct and institute The inner ring for stating heat exchanger tube sheet connects.
Further, the jacket cylinder is in transversely arranged, and the refrigerant and refrigeration oil recovery port are located at the outer housing Lower end, the refrigerant inlet tube is located at the middle part of the shell, and the refrigerant outlet tube is located at the upper end of the shell, The cooling water inlet and cooling water liquid outlet are located at the side of jacket type falling film evaporator.
In addition the jacket cylinder can also be in and be vertically arranged, and the refrigerant and refrigeration oil recovery port are located at the shell The lower end of body, the refrigerant inlet tube are located at the middle part of the shell, and the refrigerant outlet tube is located at the upper of the shell End, the cooling water inlet and cooling water liquid outlet are located at the upper end of jacket type falling film evaporator.
(3) advantageous effect
Jacket type falling film evaporator heat exchange efficiency of the present invention is high, and the charging amount of refrigerant is small, additionally have it is compact-sized, Easily adjust, it is applied widely the advantages that.
Description of the drawings
Fig. 1 is the structural schematic diagram of 1 jacket type falling film evaporator of the embodiment of the present invention;
Fig. 2 is the structural schematic diagram of heat exchanger front head in 1 jacket type falling film evaporator of the embodiment of the present invention;
Fig. 3 is the structural schematic diagram of heat exchanger tube in 1 jacket type falling film evaporator of the embodiment of the present invention;
Fig. 4 is the structural schematic diagram of 2 jacket type falling film evaporator of the embodiment of the present invention;
Fig. 5 is the structural schematic diagram of 3 jacket type falling film evaporator of the embodiment of the present invention.
Wherein, 1 is heat exchanger front head, and 2 be heat exchanger, and 3 be jacket cylinder, and 4 be heat exchanger rear head, and 5 be outer housing, 6 be interlayer cavity, and 7 be internal partition, and 8 be inner chamber body, and 9 be refrigerant inlet tube, and 10 be refrigerant outlet tube, and 11 spray for refrigerant Head is drenched, 12 be refrigerant and refrigeration oil recovery port, and 13 be heat exchanger tube sheet, and 14 be heat exchanger tube, and 15 be cooling water inlet, and 16 are Cooling water liquid outlet, 17 be liquid outlet groove, and 18 be backflash, and 19 be front head partition board, and 20 be heat-exchange tube, and 21 be return duct.
Specific implementation mode
With reference to the accompanying drawings and examples, the specific implementation mode of the present invention is described in further detail.Implement below Example is not limited to the scope of the present invention for illustrating the present invention.
Embodiment 1
A kind of structure of jacket type falling film evaporator of the present invention is as shown in Figure 1, Figure 2 and Figure 3, including heat exchanger front head 1, jacket cylinder 3, heat exchanger 2 and heat exchanger rear head 4;
The jacket cylinder 3 is equipped with outer housing 5, interlayer cavity 6, internal partition 7 and inner chamber body 8 successively from outside to inside, described It is isolated by internal partition 7 between interlayer cavity 6 and the inner chamber body 8, the internal partition 7 is cylindrical, and the inner chamber body 8 is by institute Internal partition 7 is stated to constitute at cylindric.The internal partition 7 is equipped with multiple refrigerant spray heads 11, the multiple refrigerant spray First 11 circumferentially arrange, and the outer housing 5 is equipped with refrigerant inlet tube 9 and refrigerant outlet tube 10, the refrigerant feed liquor Pipe 9, interlayer cavity 6, refrigerant spray head 11, inner chamber body 8 and refrigerant outlet tube 10 are sequentially communicated;
Compared with traditional falling film evaporator, the present invention is sprayed by the falling liquid film that jacket cylinder 3 and 360 ° of circumference types are arranged There is more more fully wet film area completely on first 11 design, 2 internal heat exchange tubes of heat exchanger, 14 surface, is imitated with fully improving its heat exchange Rate.
In the present embodiment, the heat exchanger 2 includes more heat exchanger tubes 14 and heat exchanger tube sheet 13, the more heat exchanger tubes 14 are mutually parallel on the heat exchanger tube sheet 13.Be conducive to improve its heat exchange efficiency, while reducing small product size.
In the present embodiment, the heat exchanger 2 is mounted in the inner chamber body 8 of the jacket cylinder 3, is sealed before the heat exchanger First 1 and heat exchanger rear head 4 be mounted on the jacket cylinder 3 both ends.
In the present embodiment, the heat exchanger front head 1 is equipped with cooling water inlet 15 and cooling water liquid outlet 16.
In the present embodiment, refrigerant and refrigeration oil recovery port 12 are additionally provided on the outer housing 5.
In the present embodiment, the multiple refrigerant spray head 11 is evenly distributed on the internal partition 7.
In the present embodiment, the multiple refrigerant spray head 11 is arranged in several spray lines, several sprays Line is circumferentially evenly distributed.The busbar of spray line and circular tube shaped internal partition 7 coincides.Refrigerant spray head 11 is arranged in spray Line can reduce interfering between refrigerant spray head, improve spraying effect.It in addition also can be corresponding with heat exchanger tube 14.
In the present embodiment, the spray line faces the heat exchanger tube 14.
The heat exchanger front head 1 is equipped with mutually isolated backflash 18 and liquid outlet groove 17, backflash 18 and liquid outlet groove 17 are isolated by front head partition board 19.The backflash 18 is located at the centre position of the heat exchanger front head 1, the liquid outlet groove 17 are located at the outer ring of the backflash 18, and the heat exchanger tube 14 includes interconnected heat-exchange tube 20 and return duct 21, described Heat-exchange tube 20 connects with the outer ring of the heat exchanger tube sheet 13, the inner ring phase of the return duct 21 and the heat exchanger tube sheet 13 It connects.
In the present embodiment, for the jacket cylinder 3 in being vertically arranged, the refrigerant and refrigeration oil recovery port 12 are located at institute The lower end of outer housing 5 is stated, the refrigerant inlet tube 9 is located at the middle part of the outer housing 5, and the refrigerant outlet tube 10 is located at The upper end of the outer housing 5, the cooling water inlet 15 and cooling water liquid outlet 16 are located at the upper of jacket type falling film evaporator End.
When work, chilled water enters from cooling water inlet 15 in heat exchanger 2, after flowing through the heat exchange cooling of copper heat exchanger tube 14 It is flowed out from cooling water liquid outlet 16.Chilled water flow can be designed to 1~6 flow on demand.
Refrigerant enters from refrigerant inlet tube 9 inside jacket cylinder 3, and by spreading all over the spray of the refrigerant on internal partition 7 First 11 are ejected into 8 internal heat exchange tubes of inner chamber body, 14 outer surface.After heat exchange is evaporated, refrigerant gas is flowed from refrigerant outlet tube 10 Go out.Non- evaporated refrigerant liquid and system circulation are attached to refrigeration oil and are then flowed out by refrigerant and refrigeration oil recovery port 12.
Embodiment 2
Fig. 4 is the structural schematic diagram of 2 jacket type falling film evaporator of the embodiment of the present invention;Jacket type drop in the present embodiment Film evaporator and the jacket type falling film evaporator structure in embodiment 1 are essentially identical, including heat exchanger front head 1, jacket cylinder 3, heat exchanger 2 and heat exchanger rear head 4;
The jacket cylinder 3 is equipped with outer housing 5, interlayer cavity 6, internal partition 7 and inner chamber body 8 successively from outside to inside, described It is isolated by internal partition 7 between interlayer cavity 6 and the inner chamber body 8, the internal partition 7 is cylindrical, and the inner chamber body 8 is by institute Internal partition 7 is stated to constitute at cylindric.The internal partition 7 is equipped with multiple refrigerant spray heads 11, the multiple refrigerant spray First 11 circumferentially arrange, and the outer housing 5 is equipped with refrigerant inlet tube 9 and refrigerant outlet tube 10, the refrigerant feed liquor Pipe 9, interlayer cavity 6, refrigerant spray head 11, inner chamber body 8 and refrigerant outlet tube 10 are sequentially communicated;
In the present embodiment, the jacket cylinder 3 is in transversely arranged, and the refrigerant and refrigeration oil recovery port 12 are located at institute The lower end of outer housing 5 is stated, the refrigerant inlet tube 9 is located at the middle part of the outer housing 5, and the refrigerant outlet tube 10 is located at The upper end of the outer housing 5, the cooling water inlet 15 and cooling water liquid outlet 16 are located at the same of jacket type falling film evaporator Side side.
Embodiment 3
Fig. 5 is the structural schematic diagram of 3 jacket type falling film evaporator of the embodiment of the present invention.Jacket type drop in the present embodiment Film evaporator and the jacket type falling film evaporator structure in embodiment 2 are essentially identical, including heat exchanger front head 1, jacket cylinder 3, heat exchanger 2 and heat exchanger rear head 4;
The jacket cylinder 3 is equipped with outer housing 5, interlayer cavity 6, internal partition 7 and inner chamber body 8 successively from outside to inside, described It is isolated by internal partition 7 between interlayer cavity 6 and the inner chamber body 8, the internal partition 7 is cylindrical, and the inner chamber body 8 is by institute Internal partition 7 is stated to constitute at cylindric.The internal partition 7 is equipped with multiple refrigerant spray heads 11, the multiple refrigerant spray First 11 circumferentially arrange, and the outer housing 5 is equipped with refrigerant inlet tube 9 and refrigerant outlet tube 10, the refrigerant feed liquor Pipe 9, interlayer cavity 6, refrigerant spray head 11, inner chamber body 8 and refrigerant outlet tube 10 are sequentially communicated;The jacket cylinder 3 is in Transversely arranged, the refrigerant and refrigeration oil recovery port 12 are located at the lower end of the outer housing 5, the refrigerant inlet tube 9 In the middle part of the outer housing 5, the refrigerant outlet tube 10 is located at the upper end of the outer housing 5.
In the present embodiment, the heat exchanger front head 1 is equipped with cooling water inlet 15, the heat exchanger rear head 4 It is equipped with cooling water liquid outlet 16.The cooling water inlet 15 and cooling water liquid outlet 16 are located at jacket type falling film evaporator Left and right side.
Beneficial effects of the present invention:Heat exchange efficiency is high, and the charging amount of refrigerant is small, additionally has compact-sized, easy tune Section, it is applied widely the advantages that.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, without departing from the technical principles of the invention, several improvements and modifications can also be made, these improvements and modifications Also it should be regarded as protection scope of the present invention.

Claims (10)

1. a kind of jacket type falling film evaporator, which is characterized in that including heat exchanger front head, jacket cylinder, heat exchanger and heat exchange Device rear head;
The jacket cylinder from outside to inside successively be equipped with outer housing, interlayer cavity, internal partition and inner chamber body, the interlayer cavity with It is isolated by internal partition between the inner chamber body, the internal partition is cylindrical, and the internal partition is sprayed equipped with multiple refrigerants Head is drenched, the multiple refrigerant spray head circumferentially arranges, and the outer housing is equipped with refrigerant inlet tube and refrigerant goes out liquid Pipe, the refrigerant inlet tube, interlayer cavity, refrigerant spray head, inner chamber body and refrigerant outlet tube are sequentially communicated;
The heat exchanger includes more heat exchanger tubes and heat exchanger tube sheet, and the more heat exchanger tubes are mutually parallel mounted on the heat exchange On device tube sheet;
The heat exchanger is mounted in the inner chamber body of the jacket cylinder, the heat exchanger front head and the installation of heat exchanger rear head At the both ends of the jacket cylinder.
2. jacket type falling film evaporator as described in claim 1, which is characterized in that the heat exchanger front head is equipped with cooling Water inlet and cooling water liquid outlet.
3. jacket type falling film evaporator as described in claim 1, which is characterized in that the heat exchanger front head is equipped with cooling Water inlet, the heat exchanger rear head are equipped with cooling water liquid outlet.
4. jacket type falling film evaporator as claimed in claim 2, which is characterized in that be additionally provided on the outer housing refrigerant and Refrigeration oil recovery port.
5. jacket type falling film evaporator as described in claim 1, which is characterized in that the multiple refrigerant spray head uniformly divides Cloth is on the internal partition.
6. jacket type falling film evaporator as described in claim 1, which is characterized in that the multiple refrigerant spray head is arranged in Several spray lines, several sprays line are circumferentially evenly distributed.
7. jacket type falling film evaporator as claimed in claim 6, which is characterized in that the spray line faces the heat exchange Pipe.
8. jacket type falling film evaporator as claimed in claim 2, which is characterized in that the heat exchanger front head is equipped with mutual The backflash and liquid outlet groove of isolation, the backflash are located at the centre position of the heat exchanger front head, and the liquid outlet groove is located at The outer ring of the backflash, the heat exchanger tube include interconnected heat-exchange tube and return duct, the heat-exchange tube with it is described The outer ring of heat exchanger tube sheet connects, and the return duct connects with the inner ring of the heat exchanger tube sheet.
9. jacket type falling film evaporator as claimed in claim 4, which is characterized in that the jacket cylinder is in transversely arranged, institute It states refrigerant and refrigeration oil recovery port is located at the lower end of the outer housing, the refrigerant inlet tube is located in the shell Portion, the refrigerant outlet tube are located at the upper end of the shell, and the cooling water inlet and cooling water liquid outlet are located at chuck The side of formula falling film evaporator.
10. jacket type falling film evaporator as claimed in claim 4, which is characterized in that the jacket cylinder is in be vertically arranged, institute It states refrigerant and refrigeration oil recovery port is located at the lower end of the outer housing, the refrigerant inlet tube is located in the shell Portion, the refrigerant outlet tube are located at the upper end of the shell, and the cooling water inlet and cooling water liquid outlet are located at chuck The upper end of formula falling film evaporator.
CN201810314075.5A 2018-04-10 2018-04-10 A kind of jacket type falling film evaporator Pending CN108375247A (en)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110173933A (en) * 2019-05-21 2019-08-27 王红旗 Water film evaporation condensing unit and condensation method for central air-conditioning

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4570702A (en) * 1983-03-28 1986-02-18 Chicago Bridge & Iron Company Shell and tube vertical heat exchanger with sleeves around the tubes
SU1444611A1 (en) * 1987-02-19 1988-12-15 Научно-Производственное Объединение "Техэнергохимпром" Arrangement for film distributing of liquid
US5893410A (en) * 1997-06-09 1999-04-13 General Electric Co. Falling film condensing heat exchanger with liquid film heat transfer
CN1264819A (en) * 1999-02-16 2000-08-30 开利公司 Heat exchanger including falling-film evaporator and refrigerant distributing system
CN103968612A (en) * 2014-05-14 2014-08-06 天津商业大学商业科技实业总公司 Liquid jetting type heat exchanger of refrigerating system
DE102014000539A1 (en) * 2014-01-15 2015-07-16 Thermea. Energiesysteme Gmbh Evaporator
CN106766392A (en) * 2016-11-22 2017-05-31 罗众锋 One kind spray tank-type heat exchanger and its application method
CN107543432A (en) * 2017-09-08 2018-01-05 广东芬尼克兹节能设备有限公司 Double-tube heat exchanger and heat pump
CN208186916U (en) * 2018-04-10 2018-12-04 浙江蔚庭新能源科技有限公司 A kind of jacket type falling film evaporator

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4570702A (en) * 1983-03-28 1986-02-18 Chicago Bridge & Iron Company Shell and tube vertical heat exchanger with sleeves around the tubes
SU1444611A1 (en) * 1987-02-19 1988-12-15 Научно-Производственное Объединение "Техэнергохимпром" Arrangement for film distributing of liquid
US5893410A (en) * 1997-06-09 1999-04-13 General Electric Co. Falling film condensing heat exchanger with liquid film heat transfer
CN1264819A (en) * 1999-02-16 2000-08-30 开利公司 Heat exchanger including falling-film evaporator and refrigerant distributing system
DE102014000539A1 (en) * 2014-01-15 2015-07-16 Thermea. Energiesysteme Gmbh Evaporator
CN103968612A (en) * 2014-05-14 2014-08-06 天津商业大学商业科技实业总公司 Liquid jetting type heat exchanger of refrigerating system
CN106766392A (en) * 2016-11-22 2017-05-31 罗众锋 One kind spray tank-type heat exchanger and its application method
CN107543432A (en) * 2017-09-08 2018-01-05 广东芬尼克兹节能设备有限公司 Double-tube heat exchanger and heat pump
CN208186916U (en) * 2018-04-10 2018-12-04 浙江蔚庭新能源科技有限公司 A kind of jacket type falling film evaporator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110173933A (en) * 2019-05-21 2019-08-27 王红旗 Water film evaporation condensing unit and condensation method for central air-conditioning

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