CN101975428A - Air-cooling thermotube-type machine room air-conditioning system - Google Patents

Air-cooling thermotube-type machine room air-conditioning system Download PDF

Info

Publication number
CN101975428A
CN101975428A CN 201010528027 CN201010528027A CN101975428A CN 101975428 A CN101975428 A CN 101975428A CN 201010528027 CN201010528027 CN 201010528027 CN 201010528027 A CN201010528027 A CN 201010528027A CN 101975428 A CN101975428 A CN 101975428A
Authority
CN
China
Prior art keywords
air
cooled
heat exchanger
type computer
condenser
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.)
Granted
Application number
CN 201010528027
Other languages
Chinese (zh)
Other versions
CN101975428B (en
Inventor
陈光明
唐黎明
陈琪
何一坚
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 Thorpe United Technology Co.,Ltd.
Original Assignee
Zhejiang University ZJU
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.)
Filing date
Publication date
Application filed by Zhejiang University ZJU filed Critical Zhejiang University ZJU
Priority to CN 201010528027 priority Critical patent/CN101975428B/en
Publication of CN101975428A publication Critical patent/CN101975428A/en
Application granted granted Critical
Publication of CN101975428B publication Critical patent/CN101975428B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The invention discloses an air-cooling thermotube-type machine room air-conditioning system which comprises a compressor, a first air cooling condenser, a throttling set, an evaporative condenser, a liquid storage tank, a flow balance valve, a tail end heat exchanger, a bubble pump, a first refrigerant changeover valve, a second refrigerant changeover valve and a second air cooling condenser, wherein the high-pressure exhaust port of the compressor is orderly connected with the first air cooling condenser, the throttling set, the evaporation side of the evaporative condenser, and the low-pressure air suction inlet of the compressor, thereby forming a compression refrigerating cycle loop; the condensing side outlet of the evaporative condenser is orderly connected with the liquid storage tank, the flow balance valve, the tail end heat exchanger, the bubble pump, the first refrigerant changeover valve, and the condensing side inlet of the evaporative condenser; and the outlet of the tail end heat exchanger is orderly connected with the second refrigerant changeover valve, the second air cooling condenser, and the inlet of the liquid storage tank, thereby forming a thermotube refrigerating cycle loop. The system has the advantages of small temperature difference and high energy efficiency ratio during heat exchange.

Description

A kind of air-cooled heat pipe type computer-room air conditioning system
Technical field
The present invention relates to the air-conditioning system technical field, be specifically related to a kind of air-cooled heat pipe type computer-room air conditioning system.
Background technology
Along with the fast development of China recent years information industry and network application, machine room and base station construction speed are accelerated greatly, and its quantity increases sharply, and more and more becomes the energy consumption rich and influential family.According to statistics, the energy consumption of machine room and base station accounts for 90% of whole network energy consumption, and the air conditioner refrigerating energy consumption accounts for 40%~50% of machine room and base station energy consumption.Particularly many base stations still need to utilize air conditioner refrigerating in spring and autumn and winter season, and this moment, outdoor air temperature was often lower, will reduce the energy consumption of base station air conditioner greatly if can utilize outdoor low temperature to freeze.
The discharging that utilizes outdoor lower temperature to carry out indoor heat is not a completely new concept, and the VMC that has been adopted has in a large number at present promptly adopted this theory, also has the refrigeration system that directly adopts heat exchange method in addition.
A kind of computer-room air conditioning system is disclosed among the Chinese patent ZL200920037779.9, comprise and need the heat radiation unit, the heating face or the non-heating face of two adjacent units in this unit that need dispel the heat are settled relatively, the bottom of each unit is provided with the gas channel that is led to heating face by non-heating face, blower fan is housed in the gas channel, and the division board that extends to the roof is installed in the top of each unit.Between two adjacent unit heating faces and the roof between the non-heating face suction opeing and the air outlet that connects air conditioner is set respectively, can form air conditioner and under last, send cold wind by air outlet, ventilation round via bottom and each layer is delivered to heating face by non-heating face, the suction opeing bottom-up extraction of face hot gas of will generating heat, form rational air-conditioning wind field circulation, obtain desirable air-conditioning effect, and cost economy.
A kind of air conditioner in machine room servicing unit is disclosed among the Chinese invention patent application CN200910035398.1, below the outer machine of air-conditioning, be provided with spray equipment, this spray equipment comprises the spray person in charge, spray is responsible for and is provided with at least one spray arm, the spray arm is arranged at the below of outer machine, be provided with atomizer at a spray tube end, spray is responsible for and is provided with solenoid electric valve, and temperature control circuit is set on the solenoid electric valve.By outdoor machine of air-conditioner is sprayed water-cooled, improve the refrigeration of air-conditioning.
But the refrigeration modes of existing VMC can exist complicated air quality to handle problems, and can there be the problem that the operation temperature difference is big, Energy Efficiency Ratio is not high in the refrigeration system of heat exchange method.Therefore, be necessary to develop a kind of novel computer-room air conditioning system.
Summary of the invention
The invention provides a kind of air-cooled heat pipe type computer-room air conditioning system.
A kind of air-cooled heat pipe type computer-room air conditioning system comprises compressor, first air-cooled condenser, throttling arrangement, evaporative condenser, fluid reservoir, flow balance valve, end heat exchanger, airlift pump, the first cold-producing medium transfer valve, the second cold-producing medium transfer valve and second air-cooled condenser;
The high-pressure exhaust of described compressor is connected with the evaporation side of first air-cooled condenser, throttling arrangement, evaporative condenser, the low pressure air suction mouth of compressor successively, forms the compression refrigeration closed circuit;
The condensation side outlet of described evaporative condenser is connected with the condensation side import of fluid reservoir, flow balance valve, end heat exchanger, airlift pump, the first cold-producing medium transfer valve, evaporative condenser successively, the outlet of described end heat exchanger is connected with the import of the second cold-producing medium transfer valve, second air-cooled condenser, fluid reservoir successively, forms the heat-pipe refrigerating closed circuit.
Described fluid reservoir preferably is positioned at evaporative condenser and second air-cooled condenser below, is beneficial to cold-producing medium and utilizes the gravity effect to circulate.
Described fluid reservoir is positioned at end heat exchanger top, and the distance between fluid reservoir and end heat exchanger is 1m~4m, and the cold-producing medium of being convenient in the fluid reservoir flows into end heat exchanger under the effect of self gravitation.
Described airlift pump can be selected this area common blister pump commonly used for use, also can select for use by perpendicular to the pipeline on ground be installed at the simple and easy airlift pump that the heater on the pipeline is formed.Described air-cooled heat pipe type computer-room air conditioning system needs consumed power to heat in initial start stage, can heat cold-producing medium by airlift pump, and cold-producing medium can be circulated under the effect of indoor/outdoor temperature-difference voluntarily, after this, can close airlift pump.
Described airlift pump is positioned at and is higher than on end heat exchanger 0~1.5m and the pipeline perpendicular to ground, is beneficial to cold-producing medium proper flow in circulation.
Described airlift pump starts back 10min~30min at air-cooled heat pipe type computer-room air conditioning system to be used, and pumps into second air-cooled condenser and makes it to enter fluid reservoir so that stay cold-producing medium between the airlift pump and second air-cooled condenser before system started.
Be set up in parallel 2-20 platform end heat exchanger in the described heat-pipe refrigerating closed circuit, to satisfy different space requirements, general space can suitably increase the quantity of end heat exchanger more greatly.
The described end heat exchanger flow balanced valve of all connecting, convenient thermic load of regulating each end heat exchanger.
The preferred environmental protection working medium cold-producing medium that adopts in the described compression refrigeration closed circuit, the cold-producing medium in this loop can be provided by the air-cooled heat pipe type computer-room air conditioning system of the present invention, also can be provided by other air-conditioning systems, to economize on resources.Described environmental protection working medium cold-producing medium refers to that mainly ozone layer consumption potential (ODP) value is 0 cold-producing medium, as R410 or R134A etc.
The preferred non-azeotropic refrigerant that adopts in the described heat-pipe refrigerating closed circuit.
Compared with prior art, the air-cooled heat pipe type computer-room air conditioning system of the present invention has not only solved the air quality of complexity handling problem in the VMC, also solved the problem that the operation temperature difference is big in the hot swapping, Energy Efficiency Ratio is not high, still be aspects such as national energy strategy no matter from economic benefit, social benefit, all have meaning, mainly have following beneficial effect:
(1) reduces heat transfer temperature difference during more than or equal to 20 ℃ in outdoor temperature, improves refrigerating efficiency.
(2) directly adopt the airlift pump circulating refrigerant when outdoor temperature is lower than 20 ℃, refrigerating efficiency increases substantially, and coefficient of performance of refrigerating (COP) can reach 15~20.
(3) overcome in the conventional computer-room air conditioning system defective that water easily advances machine room, guarantee the computer room safety operation.
Description of drawings
Fig. 1 is the structural representation of the air-cooled heat pipe type computer-room air conditioning system of the present invention;
Among Fig. 1,1 is that compressor, 2 is that first air-cooled condenser, 3 is that throttling arrangement, 4 is that evaporative condenser, 5 is that fluid reservoir, 6 is that flow balance valve, 7 is that end heat exchanger, 8 is that airlift pump, 9 is that the first cold-producing medium transfer valve, 10 is that the second cold-producing medium transfer valve, 11 is second air-cooled condenser.
The specific embodiment
As shown in Figure 1, the air-cooled heat pipe type computer-room air conditioning system of the present invention comprises compressor 1, first air-cooled condenser 2, throttling arrangement 3, evaporative condenser 4, fluid reservoir 5, flow balance valve 6, end heat exchanger 7, airlift pump 8, the first cold-producing medium transfer valve 9, the second cold-producing medium transfer valve 10 and second air-cooled condenser 11.
The high-pressure exhaust of compressor 1 is connected with the evaporation side of first air-cooled condenser 2, throttling arrangement 3, evaporative condenser 4, the low pressure air suction mouth of compressor 1 successively, forms the compression refrigeration closed circuit;
The condensation side outlet of evaporative condenser 4 is connected with the condensation side import of fluid reservoir 5, flow balance valve 6, end heat exchanger 7, airlift pump 8, the first cold-producing medium transfer valve 9, evaporative condenser 4 successively, the outlet of end heat exchanger 7 is connected with the import of the second cold-producing medium transfer valve 10, second air-cooled condenser 11, fluid reservoir 5 successively, forms the heat-pipe refrigerating closed circuit.
Fluid reservoir 5 is positioned at evaporative condenser 4 and second air-cooled condenser, 11 belows, and is positioned at end heat exchanger 7 tops, and the distance that fluid reservoir 5 and end heat exchanger are 7 is 3m.
Airlift pump 8 is served as reasons perpendicular to the pipeline on ground and is installed at the simple and easy airlift pump that the heater on the pipeline is formed, and is installed in to be positioned to be higher than on end heat exchanger 71.5m and the pipeline perpendicular to ground.
Airlift pump 8 starts back 20min at air-cooled heat pipe type computer-room air conditioning system to be used.
Be set up in parallel 15 end heat exchangers 7 in the heat-pipe refrigerating closed circuit, every end heat exchanger 7 series connection one flow balanced valve 6.
The air-cooled heat pipe type computer-room air conditioning system of the present invention is made up of compression refrigeration closed circuit and heat-pipe refrigerating closed circuit, the compression refrigeration closed circuit preferably adopts environmental protection working medium cold-producing medium as first cold-producing medium, as environmental protection working medium cold-producing mediums such as R410 or R134A, cold-producing medium in this loop can be provided by the air-cooled heat pipe type computer-room air conditioning system of the present invention, also can provide, to economize on resources by other air-conditioning systems; The heat-pipe refrigerating closed circuit can adopt non-azeotropic refrigerant as second cold-producing medium, as non-azeotropic refrigerants such as R410A.
The course of work of the air-cooled heat pipe type computer-room air conditioning system of the present invention is as follows:
When outdoor temperature during more than or equal to 20 ℃, the first cold-producing medium transfer valve 9 is opened, the second cold-producing medium transfer valve 10 cuts out, the first cold-producing medium transfer valve 9 open or close and the second cold-producing medium transfer valve 10 open or close all that can control by existing responsive to temperature control system also can be by manually control.In the compression refrigeration closed circuit, enter first air-cooled condenser 2 after compressed machine 1 compression of first refrigerant gas and become first refrigerant liquid by the outdoor air cooling condensation, first refrigerant liquid enters evaporative condenser 4 after throttling arrangement 3 throttling step-downs evaporation side, with the condensation side generation Hot swapping of evaporative condenser 4, promptly absorb after the condensation heat in the heat-pipe refrigerating closed circuit evaporation and become first refrigerant gas and sucked by compressor 1 and enter next circulation.In the heat-pipe refrigerating closed circuit, the flow balance valve 6 of under the gravity effect, flowing through of second refrigerant liquid in the fluid reservoir 5, evaporate behind the heat in the absorption chamber in the heat exchanger 7 endways and become second refrigerant gas, the condensation side that second refrigerant gas enters evaporative condenser 4 through the first cold-producing medium transfer valve 9, carry out Hot swapping with first refrigerant liquid in the evaporation side of evaporative condenser 4, become second refrigerant liquid after the release heat and enter fluid reservoir 5, enter next circulation.
When outdoor temperature is lower than 20 ℃, the first cold-producing medium transfer valve 9 cuts out, the second cold-producing medium transfer valve 10 is opened, 8 of airlift pumps are worked in system starts back 20min, stay second cold-producing medium between the airlift pump 8 and second air-cooled condenser 11 before system is started and pump into second air-cooled condenser 11 and make it to enter fluid reservoir 5.The compression refrigeration closed circuit quits work.In the heat-pipe refrigerating closed circuit, second refrigerant liquid in the fluid reservoir 5 is process flow balance valve 6 under the gravity effect, evaporate behind the heat in the absorption chamber in the heat exchanger 7 endways and become second refrigerant gas, second refrigerant gas enters 11 condensations of second air-cooled condenser through airlift pump 8 and the second cold-producing medium transfer valve 10 and becomes second refrigerant liquid, second refrigerant liquid enters fluid reservoir 5, enters next circulation.
The air-cooled heat pipe type computer-room air conditioning system of the present invention system, when outdoor temperature is low, can directly adopt the heat-pipe refrigerating closed circuit, do not use the compression refrigeration closed circuit, system COP increases substantially, can reach 18, regulate airlift pump 8 and start back 10min~30min use at air-cooled heat pipe type computer-room air conditioning system, the distance that fluid reservoir 5 and end heat exchanger are 7 is 1m~4m, airlift pump 8 is positioned at and is higher than on end heat exchanger 70~1.5m and the pipeline perpendicular to ground, be set up in parallel 2-20 platform end heat exchanger 7 these parameters in the heat-pipe refrigerating closed circuit, system COP can reach 15~20.The indoor direct employing heat-pipe refrigerating circulation of machine room, second cold-producing medium uses non-azeotropic refrigerants such as R410A, guarantees computer room safety.

Claims (10)

1. air-cooled heat pipe type computer-room air conditioning system, it is characterized in that, comprise compressor (1), first air-cooled condenser (2), throttling arrangement (3), evaporative condenser (4), fluid reservoir (5), flow balance valve (6), end heat exchanger (7), airlift pump (8), the first cold-producing medium transfer valve (9), the second cold-producing medium transfer valve (10) and second air-cooled condenser (11);
The high-pressure exhaust of described compressor (1) is connected with the evaporation side of first air-cooled condenser (2), throttling arrangement (3), evaporative condenser (4), the low pressure air suction mouth of compressor (1) successively, forms the compression refrigeration closed circuit;
The condensation side outlet of described evaporative condenser (4) is connected with the condensation side import of fluid reservoir (5), flow balance valve (6), end heat exchanger (7), airlift pump (8), the first cold-producing medium transfer valve (9), evaporative condenser (4) successively, the outlet of described end heat exchanger (7) is connected with the import of the second cold-producing medium transfer valve (10), second air-cooled condenser (11), fluid reservoir (5) successively, forms the heat-pipe refrigerating closed circuit.
2. air-cooled heat pipe type computer-room air conditioning system according to claim 1 is characterized in that, described fluid reservoir (5) is positioned at evaporative condenser (4) and second air-cooled condenser (11) below.
3. air-cooled heat pipe type computer-room air conditioning system according to claim 1 and 2 is characterized in that, described fluid reservoir (5) is positioned at end heat exchanger (7) top, and the distance between fluid reservoir (5) and end heat exchanger (7) is 1m~4m.
4. air-cooled heat pipe type computer-room air conditioning system according to claim 1 is characterized in that, described airlift pump (8) is served as reasons perpendicular to the pipeline on ground and is installed at the simple and easy airlift pump that the heater on the pipeline is formed.
5. according to claim 1 or 4 described air-cooled heat pipe type computer-room air conditioning systems, it is characterized in that described airlift pump (8) is positioned at and is higher than on end heat exchanger (7) 0~1.5m and the pipeline perpendicular to ground.
6. air-cooled heat pipe type computer-room air conditioning system according to claim 1 is characterized in that, described airlift pump (8) starts back 10min~30min at air-cooled heat pipe type computer-room air conditioning system to be used.
7. air-cooled heat pipe type computer-room air conditioning system according to claim 1 is characterized in that, is set up in parallel 2-20 platform end heat exchanger (7) in the described heat-pipe refrigerating closed circuit.
8. air-cooled heat pipe type computer-room air conditioning system according to claim 7 is characterized in that, described end heat exchanger (7) the flow balanced valve (6) of all connecting.
9. air-cooled heat pipe type computer-room air conditioning system according to claim 1 is characterized in that, adopts environmental protection working medium cold-producing medium in the described compression refrigeration closed circuit.
10. air-cooled heat pipe type computer-room air conditioning system according to claim 1 is characterized in that, adopts non-azeotropic refrigerant in the described heat-pipe refrigerating closed circuit.
CN 201010528027 2010-11-02 2010-11-02 Air-cooling type machine room air-conditioning system Active CN101975428B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201010528027 CN101975428B (en) 2010-11-02 2010-11-02 Air-cooling type machine room air-conditioning system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201010528027 CN101975428B (en) 2010-11-02 2010-11-02 Air-cooling type machine room air-conditioning system

Publications (2)

Publication Number Publication Date
CN101975428A true CN101975428A (en) 2011-02-16
CN101975428B CN101975428B (en) 2013-03-13

Family

ID=43575331

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201010528027 Active CN101975428B (en) 2010-11-02 2010-11-02 Air-cooling type machine room air-conditioning system

Country Status (1)

Country Link
CN (1) CN101975428B (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102538100A (en) * 2012-02-17 2012-07-04 合肥工业大学 Heat pipe composite air conditioning unit for machine room and control method of heat pipe composite air conditioning unit
CN102538101A (en) * 2012-02-17 2012-07-04 合肥工业大学 Heat pipe composite air conditioning unit for machine room and working mode of heat pipe composite air conditioning unit
CN104251529A (en) * 2014-10-16 2014-12-31 中国扬子集团滁州扬子空调器有限公司 Combined type refrigeration and multi-connected air conditioning system
CN104315668A (en) * 2014-11-05 2015-01-28 中国扬子集团滁州扬子空调器有限公司 Control method of photovoltaic drive heat pipe composite machine room air conditioning unit
CN104864734B (en) * 2014-02-23 2017-03-15 参化(上海)能源科技有限公司 Condenser and condensation method
CN106568297A (en) * 2016-10-27 2017-04-19 银川天佳能源科技股份有限公司 Cooling process for refrigeration system in natural gas liquefaction device
CN106679284A (en) * 2017-01-03 2017-05-17 中国科学院理化技术研究所 Perishable food both-way alternative air supply cold processing device
CN107588490A (en) * 2016-07-08 2018-01-16 浙江盾安人工环境股份有限公司 Refrigeration heat pipe composite air conditioner system and its control method
CN113432196A (en) * 2021-06-21 2021-09-24 深圳市科信通信技术股份有限公司 Air conditioning system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000002474A (en) * 1998-04-15 2000-01-07 Mitsubishi Electric Corp Freezing air conditioner and its control method
WO2007069019A2 (en) * 2005-12-14 2007-06-21 Indesit Company S.P.A. Electric appliance with at least one refrigerated compartment and an air treatment unit
CN101245955A (en) * 2008-03-17 2008-08-20 时代嘉华(中国)科技有限公司 Coolant natural circulation type unit air-conditioning set
CN101520218A (en) * 2009-04-03 2009-09-02 清华大学 All-year cold supply chiller with natural cooling and cold-accumulation functions
CN101608817A (en) * 2009-07-20 2009-12-23 南京佳力图空调机电有限公司 A kind of energy-saving air conditioner of indirect utilization outdoor cold source

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000002474A (en) * 1998-04-15 2000-01-07 Mitsubishi Electric Corp Freezing air conditioner and its control method
WO2007069019A2 (en) * 2005-12-14 2007-06-21 Indesit Company S.P.A. Electric appliance with at least one refrigerated compartment and an air treatment unit
CN101245955A (en) * 2008-03-17 2008-08-20 时代嘉华(中国)科技有限公司 Coolant natural circulation type unit air-conditioning set
CN101520218A (en) * 2009-04-03 2009-09-02 清华大学 All-year cold supply chiller with natural cooling and cold-accumulation functions
CN101608817A (en) * 2009-07-20 2009-12-23 南京佳力图空调机电有限公司 A kind of energy-saving air conditioner of indirect utilization outdoor cold source

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102538100A (en) * 2012-02-17 2012-07-04 合肥工业大学 Heat pipe composite air conditioning unit for machine room and control method of heat pipe composite air conditioning unit
CN102538101A (en) * 2012-02-17 2012-07-04 合肥工业大学 Heat pipe composite air conditioning unit for machine room and working mode of heat pipe composite air conditioning unit
CN102538101B (en) * 2012-02-17 2014-01-15 合肥工业大学 Heat pipe composite air conditioning unit for machine room and working mode of heat pipe composite air conditioning unit
CN102538100B (en) * 2012-02-17 2014-01-15 合肥工业大学 Heat pipe composite air conditioning unit for machine room and control method of heat pipe composite air conditioning unit
CN104864734B (en) * 2014-02-23 2017-03-15 参化(上海)能源科技有限公司 Condenser and condensation method
CN104251529A (en) * 2014-10-16 2014-12-31 中国扬子集团滁州扬子空调器有限公司 Combined type refrigeration and multi-connected air conditioning system
WO2016058280A1 (en) * 2014-10-16 2016-04-21 中国扬子集团滁州扬子空调器有限公司 Combined cascade refrigeration air-conditioning system and control method therefor
CN104315668A (en) * 2014-11-05 2015-01-28 中国扬子集团滁州扬子空调器有限公司 Control method of photovoltaic drive heat pipe composite machine room air conditioning unit
CN107588490A (en) * 2016-07-08 2018-01-16 浙江盾安人工环境股份有限公司 Refrigeration heat pipe composite air conditioner system and its control method
CN106568297A (en) * 2016-10-27 2017-04-19 银川天佳能源科技股份有限公司 Cooling process for refrigeration system in natural gas liquefaction device
CN106679284A (en) * 2017-01-03 2017-05-17 中国科学院理化技术研究所 Perishable food both-way alternative air supply cold processing device
CN106679284B (en) * 2017-01-03 2018-09-28 中国科学院理化技术研究所 A kind of perishable items two way alternate air-supply cold working apparatus
CN113432196A (en) * 2021-06-21 2021-09-24 深圳市科信通信技术股份有限公司 Air conditioning system

Also Published As

Publication number Publication date
CN101975428B (en) 2013-03-13

Similar Documents

Publication Publication Date Title
CN101975428B (en) Air-cooling type machine room air-conditioning system
CN202149545U (en) Fresh air fan set with heat recovery and humidification functions
CN203848433U (en) Heat pipe and heat pump dual-mode air conditioner with evaporative condenser
CN103940271B (en) A kind of heat pipe heat exchanging system with evaporative condenser
CN203010777U (en) Dual-refrigeration-cycle energy-saving air conditioning unit
CN105135739A (en) Multifunctional heat pump type evaporative condensing air-conditioning unit
CN101968245A (en) Water-cooled energy-saving machine room air conditioning system
CN201322466Y (en) Evaporative condensing/cooling air conditioning water chilling unit
CN100538208C (en) A kind of double-temperature refrigerator water/cold wind unit
CN103940018A (en) Heat pipe air conditioner all-in-one machine with evaporative condenser
CN101979928B (en) Water-cooled heat pipe-type machine room air-conditioning system
CN109357427B (en) Combined air conditioning system for machine room and hot water system and control method thereof
CN202757346U (en) Central air-conditioning and hot water all-in-one machine
CN100494824C (en) Four-pipe heating pump central air conditioner system
CN101975494B (en) Air-cooled energy-saving type motor room air conditioning system
CN104279662B (en) Cold and heat combined supply water-loop heat pump air conditioning system and realizing method thereof
CN102954548A (en) Direct evaporation split type heat pipe heat-exchanger
CN201434458Y (en) Air conditioning refrigeration system for large temperature difference series connection cascade utilization
CN205119549U (en) Multi -functional heat pump type evaporation formula condensation air conditioning unit
CN204806586U (en) Evaporation cooling formula cooling water set
CN210486163U (en) High-efficient refrigeration waste heat utilization system
CN203928493U (en) Earth source heat pump
CN102829519B (en) Dehumidifying unit of double cold source all fresh air heat pump provided with cold carrying heat exchanger
CN203116175U (en) Large space air-conditioner device of valve hall of convertor station of transmission project
CN102620477B (en) Double-cold-source full fresh air heat pump dehumidification unit

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
C14 Grant of patent or utility model
TR01 Transfer of patent right

Effective date of registration: 20220530

Address after: 310019 Room 501, building 1, No. 51, Jiusheng Road, Jianggan District, Hangzhou City, Zhejiang Province

Patentee after: Zhejiang Thorpe United Technology Co.,Ltd.

Address before: 310027 No. 38, Zhejiang Road, Hangzhou, Zhejiang, Xihu District

Patentee before: ZHEJIANG University