CN203518141U - Data machine room full-year cooling air-conditioning system with condensation heat recycling function - Google Patents

Data machine room full-year cooling air-conditioning system with condensation heat recycling function Download PDF

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Publication number
CN203518141U
CN203518141U CN201320372204.9U CN201320372204U CN203518141U CN 203518141 U CN203518141 U CN 203518141U CN 201320372204 U CN201320372204 U CN 201320372204U CN 203518141 U CN203518141 U CN 203518141U
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China
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water
cooling
heat
machine room
year
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CN201320372204.9U
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Chinese (zh)
Inventor
李先庭
张朋磊
王宝龙
石文星
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清华大学
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/60Planning or developing urban green infrastructure
    • Y02A30/64Planning or developing urban green infrastructure for reducing heat island effects, e.g. by minimizing paved surfaces or by planting trees
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/50Systems profiting of external or internal conditions
    • Y02B30/52Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/50Systems profiting of external or internal conditions
    • Y02B30/56Heat recovery units
    • Y02B30/563Air to air

Abstract

The utility model discloses a data machine room full-year cooling air-conditioning system with the condensation heat recycling function. The data machine room full-year cooling air-conditioning system comprises a cooling tower, a cooling water pump, a hot water pump, a water segregator, a water collector, heating device tail ends, a water-water heat pump unit and a machine special for a water-cooling type machine room, wherein the cooling tower and the water-water heat pump unit are arranged in parallel, cooling water flowing out of a condenser of the machine special for the water-cooling type machine room is distributed to an evaporator of the water-water heat pump unit and/or the cooling tower through flow adjustment valves, the water-water heat pump unit fetches heat from the cooling water of the machine special for the water-cooling type machine room to obtain high-quality hot water which is fed to the heating device tail ends to heat surrounding buildings, and redundant condensation heat discharged by the machine special for the water-cooling type machine room is discharged through cooling water from the cooling tower. According to the data machine room full-year cooling air-conditioning system, the full-year cooling requirement of the data machine room is safely and efficiently met, meanwhile, high-density heat of the data machine room is recycled to heat the surrounding buildings, cold and heat are reasonably used, and the remarkable effects of energy conservation, emission reduction, water resource saving and urban heat island effect buffering are achieved.

Description

A kind of data center module all-year-around cooling air-conditioning system reclaiming with condensation heat

Technical field

The utility model relates to a kind of data center module all-year-around cooling air-conditioning system reclaiming with condensation heat, is specially adapted to the Large-scale Data Rooms that neighboring buildings has heat demand, belongs to field of heating ventilation air conditioning.

Background technology

Flourish along with China's computer and communications industry, especially " rise of cloud computing theory, large-scale operational data center module rapid growth.Data center module intercom set is many, and caloric value is large, and every square metre of caloric value reaches several kilowatts even tens kilowatts.In order to maintain the required humiture requirement of machine room, data center module requires air-conditioning system to carry out all-year-around cooling conventionally, has consumed a large amount of energy for this reason.

At present, data center module all-year-around cooling is most adopts air-cooled cooling device, although air-cooled cooling device convenient and flexible installation, poor performance (especially in summer), power consumption is many, also can cause local tropical island effect, further aggravates performance degradation problem

In order to improve machine room all-year-around cooling performance, the existing water chiller that adopts, utilizes cooling tower heat extraction at present, with heat exchanger, condensation heat is reclaimed to the scheme for neighboring buildings heating in the winter time.This scheme has certain effect to energy-saving and emission-reduction, reduction tropical island effect; For example Chinese utility model patent discloses " a kind of heat recovery water cooling air conditioning system of communication machine rooms (201672618U) ", and for the recycling of condensation heat provides feasible program (shown in Fig. 1), but this scheme exists following defect:

1. the cold water that this scheme is produced handpiece Water Chilling Units is sent in the machine room cooling device in room and is produced cold wind, and this machine room cooling device adopts frozen water type machine room cooling device (3) to be water-air heat exchanger, thereby has the hidden danger of the damage calculator room equipment that leaks;

During 2. for assurance winter operation, the performance of handpiece Water Chilling Units is unlikely to too low, therefore be used for heating by plate type heat exchanger (18) recovering condensing heat, although can reclaim certain heat, cooling water temperature grade reduces, and can not meet the demand of indoor (7) heating to water temperature;

3. do not make full use of natural cooling source, when winter or conditioning in Transition Season outdoor temperature are lower, the handpiece Water Chilling Units (6) of steam compressed machinery refrigeration still needs continuous operation, causes the energy consumption of machine room cooling device too high.

In view of the foregoing, be necessary to propose both to have guaranteed that data center module cooling was safe and efficient, meet the technical scheme of the data center module condensation heat recovery of neighboring buildings indoor heating demand simultaneously.

Utility model content

Based on above-mentioned technical background, the purpose of this utility model is to have proposed a kind of data center module all-year-around cooling air-conditioning system reclaiming with condensation heat, when realizing the efficient all-year-around cooling of computer room safety, solves the heat problem that supplies of machine room neighboring buildings.When machine room neighboring buildings has heat demand, the heat of discharging by machine room cooling device, through the further temperature raising of water-water heat pump unit, gives heat supply in building; When there is no heat demand, cooling water loop is connected and dispels the heat with cooling tower, realizes efficient cooling.

The technical solution of the utility model is as follows:

A kind of data center module all-year-around cooling air-conditioning system reclaiming with condensation heat, comprise cooling tower 4, cooling water pump 5, heat-exchanger pump 10, water knockout drum 15, water collector 16 and heating equipment end 7, water-water heat pump unit 6, machine room cooling device 3, it is characterized in that: described machine room cooling device 3 is water-cooling type machine room special machine, described cooling tower and water-water heat pump unit are arranged in parallel, and the cooling water of machine room cooling device 3 enters respectively in the evaporimeter 61 and cooling tower 4 of water-water heat pump unit by first flow control valve 11 and second adjustable valve 12; Cooling water pump 5 is by the evaporimeter 61 through water-water heat pump unit or/and the cooled cooling water of cooling tower 4 is sent in the condenser of machine room cooling device 3, and the evaporimeter 61 of sending again water-water heat pump unit back to after the heat in absorption machine room is or/and in cooling tower 4; The hot water of producing from the condenser 62 of water-water heat pump unit is sent into heating equipment end 7 through water knockout drum 15 and heat-exchanger pump 10; Hot water after cooling returns in the condenser of water-water heat pump unit 6 through water collector 16 again.

In technique scheme, described water-cooling type machine room special machine is the combination of one or more units in water-cooling type steam compression type cold wind unit, separate heat pipe heat exchange unit, refrigerating medium heat exchange unit and heat pipe-steam compressed combined air conditioner unit.Described cooling tower 4 is open cooling tower or closed cooling tower.Described first flow control valve 11 and second adjustable valve 12 are electric control valve or magnetic valve, or adopt two electric T-shaped valve or three-way solenoid valves that flow control valve is integrated.Described heating equipment end is air-conditioning box, fan coil, radiator radiant heating heat exchanger or domestic hot-water's terminal device.

Technical characterictic of the present utility model is also: this system also comprises a supplying heat source 17, and this supplying heat source is connected with water collector 16 with water knockout drum 15 with valve by pipeline respectively.Described supplying heat source is municipal heating systems or community boiler.By corresponding valve regulated on water collecting and diversifying device, this system is combined for building heat supplying separately or with other supplying heat source 17.

The utility model is compared with existing scheme, has the following advantages: 1. adopt water-cooled-cold type machine room cooling device, it is directly cooling that cold-producing medium replaces chilled water to enter machine room, avoided chilled water directly to enter the potential safety hazard that machine room brings; 2. adopt water-water heat pump, the cooling water of machine room cooling device is further promoted to temperature, the hot water obtaining can meet the requirement of various heat supply ends; 3. machine room cooling device adopts the air-conditioning system with nature cooling function, when outdoor temperature is lower, by natural mode Cheap highly effective be machine room cooling, can greatly reduce the energy consumption of machine room all-year-around cooling.

Generally speaking, a kind of data center module all-year-around cooling air-conditioning system reclaiming with condensation heat, not only meets the all-year-around cooling demand of data center module safely and efficiently, reclaims the high density heat of machine room for neighboring buildings heat supply simultaneously, has realized cold and hot reasonable utilization.Not only can be significantly energy-conservation, water saving, alleviating urban heat island effect, and reduced carbon dioxide and granular material discharged.This scheme is particularly useful for the Large-scale Data Rooms of northern area, can bring significant society and economic benefit.

Accompanying drawing explanation

Fig. 1 is the structural principle schematic diagram of the condensation heat recovery device of Chinese utility model patent 201672618U proposition.

The structural principle schematic diagram of a kind of data center module all-year-around cooling air-conditioning system reclaiming with condensation heat that Fig. 2 provides for the utility model.

Fig. 3 is the structural representation (separate heat pipe heat exchange unit and the combination of steam compressed unit) of the first embodiment of water-cooling type machine room special machine in the utility model.

Fig. 4 is the structural representation (with the combination of separate heat pipe heat exchange unit or refrigerating medium heat exchange unit and the steam compressed unit of liquid pump) of the second embodiment of water-cooling type machine room special machine in the utility model.

Fig. 5 is the structural representation (heat pipe-steam compressed combined air conditioner unit) of the third embodiment of water-cooling type machine room special machine in the utility model.

In figure: 1-chilled water circulating pump; 2-data center module; 3-machine room cooling device; 4-cooling tower; 5-cooling water pump; 6-water-water heat pump unit; 61-water-water heat pump unit evaporimeter; 62-water-water heat pump unit condenser; 7-heat supply end; 10-heat-exchanger pump; 11-first flow control valve; 12-second adjustable valve; 15-water collector; 16-water knockout drum; Other supplying heat source of 17-; 18-plate type heat exchanger.

The specific embodiment

Below in conjunction with drawings and Examples, the utility model is further illustrated.

The structural principle schematic diagram of a kind of data center module all-year-around cooling air-conditioning system reclaiming with condensation heat that Fig. 2 provides for the utility model, this system comprises cooling tower 4, cooling water pump 5, heat-exchanger pump 10, water knockout drum 15, water collector 16 and heating equipment end 7, water-water heat pump unit 6, machine room cooling device 3, it is characterized in that: described machine room cooling device 3 is water-cooling type machine room special machine, described cooling tower and water-water heat pump unit are arranged in parallel, the cooling water of machine room cooling device 3 enters respectively in the evaporimeter 61 and cooling tower 4 of water-water heat pump unit by first flow control valve 11 and second adjustable valve 12, cooling water pump 5 is by the evaporimeter 61 through water-water heat pump unit or/and the cooled cooling water of cooling tower 4 is sent in the condenser of machine room cooling device 3, and the evaporimeter 61 of sending again water-water heat pump unit back to after the heat in absorption machine room is or/and in cooling tower 4, the hot water of producing from the condenser 62 of water-water heat pump unit is sent into heating equipment end 7 through water knockout drum 15 and heat-exchanger pump 10, hot water after cooling returns in the condenser of water-water heat pump unit 6 through water collector 16 again.

In the winter time or conditioning in Transition Season, when machine room neighboring buildings has very large heating demand, first flow control valve valve 11 is opened, and second adjustable valve 12 is closed, the complete conducting of recuperation of heat loop, and heat radiation loop is closed.Now, the cooling water of discharging from the condenser of machine room cooling device 3 enters the evaporimeter 61 of water-water heat pump unit, and the cooling water after cooling is got back to the condenser of machine room cooling device 3 under the effect of cooling water pump 5; Water-water heat pump unit absorbs the heat in cooling water, in the condenser 62 of water-water heat pump unit, produce the hot water of higher temperature, through water knockout drum 15, under heat-exchanger pump 10 effects, to building in each heat supply end 7 heat supplies, the hot water after cooling comes back in the condenser 62 of water-water heat pump unit through water collector 16.Further, in order to improve the safety and reliability of heat supply, the hot water that recuperation of heat makes can pass through the corresponding valve regulated of water collecting and diversifying device, and other thermal source 17 is combined for building heat supplying.

When machine room neighboring buildings does not have heat demand, first flow control valve valve 11 is closed, and second adjustable valve 12 is opened, the loop conducting of dispelling the heat, and recuperation of heat loop is closed.Now, the cooling water of discharging from the condenser of machine room cooling device 3 enters cooling tower 4 and dispels the heat, and the cooling water after cooling is got back to the condenser of machine room cooling device 3 under the effect of cooling water pump 5, has guaranteed that machine room cooling device moves safely and efficiently.

When building has part heat demand, first flow control valve 11 and second adjustable valve 12 are opened simultaneously, regulate the aperture of first flow control valve 11 and second adjustable valve 12, complementary adjusting enters the cooling water flow of water-water heat pump evaporimeter 61 and cooling tower 4.Water-water heat pump absorbs the heat in cooling water, produces the hot water of higher temperature for heat supply in water-water heat pump condenser 62; Enter the cooling water evaporation cooling of cooling tower 4, get rid of unnecessary heat.Two parts cooling water after cooling is got back to the condenser of machine room cooling device 3 under the effect of cooling water pump.Like this, under the prerequisite of assurance neighboring buildings heat demand, after-heat is got rid of by cooling tower, guaranteed that machine room cooling device moves safely and efficiently simultaneously.

This system also comprises a supplying heat source 17, and this supplying heat source is connected with water collector 16 with water knockout drum 15 with valve by pipeline respectively.Described supplying heat source is municipal heating systems or community boiler.By corresponding valve regulated on water collecting and diversifying device, this system is combined for building heat supplying separately or with other supplying heat source 17.

Machine room cooling device is water-cooling type machine room special machine, it has different version, and for example water-cooling type machine room special machine can adopt the combination of one or more units in water-cooling type steam compression type cold wind unit, separate heat pipe heat exchange unit, refrigerating medium heat exchange unit and heat pipe-steam compressed combined air conditioner unit.

Described cooling tower 4 adopts open cooling tower or closed cooling tower.Described first flow control valve 11 and second adjustable valve 12 are electric control valve or magnetic valve, or adopt two electric T-shaped valve or three-way solenoid valves that flow control valve is integrated.Described heating equipment end is air-conditioning box, fan coil, radiator radiant heating heat exchanger or domestic hot-water's terminal device.

Below in conjunction with different embodiment, further illustrate.

Embodiment mono-, shown in Figure 3.The water-cooling type machine room special machine of the present embodiment is the combination of separate heat pipe heat exchange unit and steam compressed unit.Separate heat pipe heat exchange unit and steam compressed air-conditioning unit arrange separately.When indoor and cooling water heat transfer temperature difference are larger, (1. outdoor temperature is low, but there is no heat demand, while dispelling the heat; When 2. water-water heat pump caloric receptivity is greater than machine room inner vapor compressor bank heat exhaust), open separate heat pipe heat exchange unit and carry out nature heat transfer, take full advantage of natural temperature differential and conduct heat, improved the energy saving of system; When indoor and cooling water heat transfer temperature difference hour, open steam compressed air-conditioning unit and force heat extraction, strengthened the reliability of system.Like this, guaranteeing, under the basis of machine room cooling safety, to have saved to greatest extent energy consumption for cooling.Meanwhile, the high density heat of system recoveries machine room, for neighboring buildings heat supply, reaches cold and hot reasonable utilization, guarantees that data center module is annual cooling safely and efficiently, has solved again the heat problem that supplies of neighboring buildings.

Embodiment bis-, shown in Figure 4.The water-cooling type machine room special machine of the present embodiment is the combination with separate heat pipe heat exchange unit or refrigerating medium heat exchange unit and the steam compressed unit of liquid pump.Compare with common gravity type heat pipe heat exchanger, be not subject to the restriction of mounting distance, height with the heat exchange of heat pipe of heat pump, install more flexibly and easily, and reliability is higher.When indoor and cooling water heat transfer temperature difference are larger, separate heat pipe heat exchange unit or the refrigerating medium unit of open belt heat pump carry out nature heat transfer, when indoor and cooling water heat transfer temperature difference hour, open steam compressed air-conditioning unit and force heat transfer.

Embodiment tri-, shown in Figure 5.The water-cooling type machine room special machine of the present embodiment is heat pipe-steam compressed compound unit.This compound unit, by sharing heat exchanger, combines heat pipe circulation and vapor-compression cycle together, can select automatically unit to be operated in heat pipe pattern or compression refrigeration pattern according to environmental condition.When indoor and cooling water heat transfer temperature difference are larger, unit operation, in heat pipe mode of operation, utilizes the temperature difference to carry out nature heat transfer; When indoor and cooling water heat transfer temperature difference hour, by triple valve, switch, unit is switched to compression refrigeration pattern and forces heat transfer.This scheme not only has the energy saving of heat pipe simultaneously, the reliability of compression refrigeration, and there is material-saving, save land, save the advantage of initial cost.

Claims (6)

1. the data center module all-year-around cooling air-conditioning system reclaiming with condensation heat, comprise cooling tower (4), cooling water pump (5), heat-exchanger pump (10), water knockout drum (15), water collector (16), heating equipment end (7), water-water heat pump unit (6) and machine room cooling device (3), it is characterized in that: described machine room cooling device (3) is water-cooling type machine room special machine, described cooling tower (4) is arranged in parallel with water-water heat pump unit (6), the cooling water of machine room cooling device (3) enters respectively in the evaporimeter (61) and cooling tower (4) of water-water heat pump unit by first flow control valve (11) and second adjustable valve (12), cooling water pump (5) is by the evaporimeter (61) through water-water heat pump unit or/and the cooled cooling water of cooling tower (4) is sent in the condenser of machine room cooling device (3), and the evaporimeter (61) of sending again water-water heat pump unit back to after the heat in absorption machine room is or/and in cooling tower (4), the hot water of producing from the condenser (62) of water-water heat pump unit is sent into heating equipment end (7) through water knockout drum (15) and heat-exchanger pump (10), hot water after cooling returns in the condenser of water-water heat pump unit (6) through water collector (16) again.
2. a kind of data center module all-year-around cooling air-conditioning system reclaiming with condensation heat according to claim 1, is characterized in that: described water-cooling type machine room special machine is the combination of one or more units in water-cooling type steam compression type cold wind unit, separate heat pipe heat exchange unit, refrigerating medium heat exchange unit and heat pipe-steam compressed combined air conditioner unit.
3. a kind of data center module all-year-around cooling air-conditioning system reclaiming with condensation heat according to claim 1, is characterized in that: described cooling tower (4) is open cooling tower or closed cooling tower.
4. a kind of data center module all-year-around cooling air-conditioning system reclaiming with condensation heat according to claim 1, it is characterized in that: described first flow control valve (11) and second adjustable valve (12) are electric control valve or magnetic valve, or adopt two electric T-shaped valve or three-way solenoid valves that flow control valve is integrated.
5. a kind of data center module all-year-around cooling air-conditioning system reclaiming with condensation heat according to claim 1, it is characterized in that: this system also comprises a supplying heat source (17), this supplying heat source is connected with water collector (16) with water knockout drum (15) with valve by pipeline respectively.
6. a kind of data center module all-year-around cooling air-conditioning system reclaiming with condensation heat according to claim 5, is characterized in that: described supplying heat source (17) is municipal heating systems or community boiler.
CN201320372204.9U 2013-06-26 2013-06-26 Data machine room full-year cooling air-conditioning system with condensation heat recycling function CN203518141U (en)

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CN201320372204.9U CN203518141U (en) 2013-06-26 2013-06-26 Data machine room full-year cooling air-conditioning system with condensation heat recycling function

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Application Number Priority Date Filing Date Title
CN201320372204.9U CN203518141U (en) 2013-06-26 2013-06-26 Data machine room full-year cooling air-conditioning system with condensation heat recycling function

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104165427A (en) * 2014-08-08 2014-11-26 北京百度网讯科技有限公司 Recovery method and device for hot channel air
CN104296294A (en) * 2014-10-22 2015-01-21 浙江绿城建筑设计有限公司 Commercial complex air-conditioning energy recycling method and system
CN104456795A (en) * 2014-12-03 2015-03-25 郭祥 Centralized efficient cooling and energy-saving system for data center
CN104534598A (en) * 2014-12-31 2015-04-22 浙江工商大学 Machine room air conditioner hot-water system with double-water-source heat pump and control method of machine room air conditioner hot-water system
CN104613668A (en) * 2015-02-28 2015-05-13 广东美的暖通设备有限公司 Combined air-conditioning system as well as control method thereof
CN104613667B (en) * 2015-02-28 2016-08-31 广东美的暖通设备有限公司 Combined air-conditioning system and control method thereof
CN104296294B (en) * 2014-10-22 2017-01-04 浙江绿城建筑设计有限公司 Commercial Complex air conditioner energy source recovery method and system
CN106402982A (en) * 2016-08-31 2017-02-15 新奥泛能网络科技股份有限公司 Data computer room waste heat recycling system and air conditioner system

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104165427A (en) * 2014-08-08 2014-11-26 北京百度网讯科技有限公司 Recovery method and device for hot channel air
CN104296294A (en) * 2014-10-22 2015-01-21 浙江绿城建筑设计有限公司 Commercial complex air-conditioning energy recycling method and system
CN104296294B (en) * 2014-10-22 2017-01-04 浙江绿城建筑设计有限公司 Commercial Complex air conditioner energy source recovery method and system
CN104456795A (en) * 2014-12-03 2015-03-25 郭祥 Centralized efficient cooling and energy-saving system for data center
CN104456795B (en) * 2014-12-03 2017-04-19 郭祥 Centralized efficient cooling and energy-saving system for data center
CN104534598A (en) * 2014-12-31 2015-04-22 浙江工商大学 Machine room air conditioner hot-water system with double-water-source heat pump and control method of machine room air conditioner hot-water system
CN104534598B (en) * 2014-12-31 2018-03-09 浙江工商大学 Using the air conditioner in machine room hot-water heating system and its control method of double water source heat pump
CN104613668A (en) * 2015-02-28 2015-05-13 广东美的暖通设备有限公司 Combined air-conditioning system as well as control method thereof
CN104613667B (en) * 2015-02-28 2016-08-31 广东美的暖通设备有限公司 Combined air-conditioning system and control method thereof
CN106402982A (en) * 2016-08-31 2017-02-15 新奥泛能网络科技股份有限公司 Data computer room waste heat recycling system and air conditioner system

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