CN103140718A - Integrated air-conditioning system, and internal air unit, external air unit, and laminated body, thereof - Google Patents

Integrated air-conditioning system, and internal air unit, external air unit, and laminated body, thereof Download PDF

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Publication number
CN103140718A
CN103140718A CN2011800477814A CN201180047781A CN103140718A CN 103140718 A CN103140718 A CN 103140718A CN 2011800477814 A CN2011800477814 A CN 2011800477814A CN 201180047781 A CN201180047781 A CN 201180047781A CN 103140718 A CN103140718 A CN 103140718A
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CN
China
Prior art keywords
air
unit
heat exchanger
outdoor air
air unit
Prior art date
Application number
CN2011800477814A
Other languages
Chinese (zh)
Inventor
高桥正树
峰岸裕一郎
大贺俊辅
Original Assignee
富士电机株式会社
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Filing date
Publication date
Priority to JP2010267249 priority Critical
Priority to JP2010-267249 priority
Application filed by 富士电机株式会社 filed Critical 富士电机株式会社
Priority to PCT/JP2011/076841 priority patent/WO2012073746A1/en
Publication of CN103140718A publication Critical patent/CN103140718A/en

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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
    • F25B30/00Heat pumps
    • F25B30/02Heat pumps of the compression type
    • 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
    • F24F12/001Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
    • F24F12/002Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an intermediate heat-transfer fluid
    • 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
    • F24F12/001Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
    • F24F12/006Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an air-to-air heat exchanger
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/20Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20709Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
    • H05K7/20718Forced ventilation of a gaseous coolant
    • H05K7/20745Forced ventilation of a gaseous coolant within rooms for removing heat from cabinets, e.g. by air conditioning device
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/20Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20709Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
    • H05K7/20763Liquid cooling without phase change
    • H05K7/2079Liquid cooling without phase change within rooms for removing heat from cabinets
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/20Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20709Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
    • H05K7/208Liquid cooling with phase change
    • H05K7/20827Liquid cooling with phase change within rooms for removing heat from cabinets, e.g. air conditioning devices
    • 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]
    • Y02B30/56Heat recovery units
    • 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
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00Climate change mitigation technologies for sector-wide applications
    • Y02P80/10Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier

Abstract

An integrated air-conditioning system (50) in which an internal air unit (60) and an external air unit (70) are connected with a wall (1) therebetween, has an integrated structure comprising both: a structure as an indirect external air cooling machine (liquid-gas heat exchangers (61b, 71b), pipes (51), etc.); and a structure as a general air-conditioning machine (evaporator (61a), expansion valve (54), compressor (55), condenser (71b), etc.).

Description

The integral air conditioner system, be used for the integral air conditioner system the room air unit, be used for outdoor air unit and the stack structure of integral air conditioner system

Technical field

The present invention relates to a kind of air-conditioning system.

Background technology

In the past, many servers and similar devices are arranged in room server of data center and enterprise etc.In this room server etc., indoor temperature rises due to the heat that many servers produce, and the rising of this indoor temperature may cause the out of control or fault of server.Therefore, adopt in room server whole chamber is maintained air-conditioning system under steady temperature.The ground operation of this air-conditioning system substantial constant, operation even in the winter time.

In order to stablize room temperature in this room server etc., the air-conditioning system of prior art adopts a kind of round-robin method, wherein, server is cooling by the Cryogenic air (cold air) that blows out and supply to from the apparatus of air conditioning in room server, and Cryogenic air flows in server rack and contacts with server.Thus, turned back in above-mentioned air-conditioning equipment from room server by the air (hot-air) of the heat of server heating, cooling by air-conditioning equipment, become again cold air, and blow back in room server, again to supply with cold air.

For example, known patent document 1,2 and 3 air conditioner.

Even if in patent documentation 1,2 and 3, invention disclosed all relates to for the air conditioner that still needs cooling high heat density (high heating) equipment when outside air temperature is low, and relate to and adopt outside air temperature to come air conditioner in cooling chamber.

Patent documentation 1,2 and 3 air conditioner all have roughly the same structure, and comprise the cooling circuit that is connected with refrigerated medium pump, expansion valve, evaporimeter, compressor and condenser in it in turn.In this refrigerant loop, can realize making compressor operating with the compression cycle in cooling chamber and running refrigerating agent pump and compressor operating is circulated with the refrigerated medium pump in cooling chamber.Operation when usually, compressor is different with refrigerated medium pump.Basically, make pump refrigerant circular flow when outside air temperature is low, and makes the compression cycle operation when outside air temperature is higher.

Compression cycle is the Normal squeezing kind of refrigeration cycle (evaporation-condensation kind of refrigeration cycle and analog) of " evaporimeter → compressor → condenser → expansion valve → evaporimeter ".In the pump refrigerant circulation, the refrigerant gas that leaves evaporimeter is sent to condenser like this, and the cooling and liquefaction by the low temperature chamber outer air in condenser, then is sent to refrigerated medium pump.In refrigerated medium pump, liquid refrigerant is pressurized and be directed to evaporimeter.Come the cooling refrigeration agent and adopt the cold-producing medium be cooled to be called as in cooling chamber indirect outdoor air cooling etc. by outdoor air.

In the invention of patent documentation 1, by for example with outside air temperature and setting value T1, T2 and T3(T3〉T2〉T1) relatively carry out the switching between above-mentioned two circulations.Thus, can carry out two cyclic switching operations, so that overall energy consumption reduces.

In addition, in the invention of patent documentation 2, when the air output in making outside pressure fan maximizes and indoor temperature is equal to or higher than predetermined value in addition, will operate from the pump refrigerant cyclic switching to compression cycle.

In addition, in the invention of patent documentation 3, be provided with control device, thereby, in the operating period of indirect outdoor air cool cycles, when the liquid refrigeration agent flux is equal to or less than definite value, at least one in the air quantity of the input quantity of the pneumatic conveyer of control cold-producing medium, the air quantity of inner blower machine, outside pressure fan and the valve opening of expansion valve.When the rotating speed when the flow of above-mentioned liquid refrigerant is equal to or less than definite value surpassed desired speed at the appointed time, control device changed over evaporation-compression cool cycles with cool cycles from indirect outdoor air cool cycles.

The prior art document

Patent documentation

No. the 3967033rd, patent documentation 1 Japan Patent

No. the 3995825th, patent documentation 2 Japan Patents

No. the 4145632nd, patent documentation 3 Japan Patents

Summary of the invention

Fig. 4 illustrates the example of the indirect outdoor air cooling system of prior art.

In Fig. 4, the outdoor air cooling system is the cooling system of cooling any inner space indirectly, and is used for cools outdoor air, and does not cause that outdoor air flows into the inner space.The inner space is such as being room server that is equipped with in it many server racks 102 etc., and server unit (computer installation) or other generating component 101 are arranged on these server racks.In this inner space, produce large calorimetric by many heater elements 101, even and if also need in the winter time to carry out cooling.

In this example, above-mentioned inner space is divided into side space and ceiling superjacent air space under Servers installed space, floor in Fig. 4.Certainly, the Servers installed space is the space that server rack 102 is installed, and above-mentioned heater element 101 is arranged in server rack.Be ceiling above the Servers installed space, the below is the floor; The space of ceiling top is above-mentioned ceiling superjacent air space, and under the floor, side space is side space under above-mentioned floor.Certainly, have the hole on floor and ceiling, cold air and hot-air enter via these orifice flows and flow out the Servers installed space.

Shown indirect outdoor air cooling system adopt general aircondition come cooling such as from room server etc. return to air (hot-air), but by using outdoor air and reduce the temperature of returning to air in stage before, realize the saving to power.

At this, the air conditioner 110 that comprises refrigeration unit 111, air conditioner unit 112, expansion valve 113, refrigerant tubing 114 etc. is air conditioners of general preexist.That is, air conditioner 110 is to adopt the common compression refrigeration circulation (evaporation-compression-type kind of refrigeration cycle etc.) of " evaporimeter → compressor → condenser → expansion valve → evaporimeter " to come cooling general air conditioner.

Cold-producing medium cycles through refrigeration unit 111, air conditioner unit 112, expansion valve 113 etc. via refrigerant tubing 114.Refrigeration unit 111 has compressor, condenser, pressure fan etc.Air conditioner unit 112 has evaporimeter, pressure fan etc.

Air conditioner unit 112 is transported to cold air under above-mentioned indoor floor in side space, and cold air is supplied to the Servers installed space via side space under the floor.The above-mentioned generating component 101 of this chilled air cools also becomes hot-air, and hot-air is in Servers installed space inflow ceiling superjacent air space.In common cooling system, this hot-air flows into air conditioner unit 112 from the ceiling superjacent air space via pipeline etc.The hot-air that air conditioner unit 112 adopts above-mentioned evaporator cools to flow into is to produce above-mentioned cold air.

At this, the hot-air of air conditioner unit 112 cooling inflows, thereby the temperature of cold air becomes setting (setting value), the temperature of the hot-air that certainly flows into is higher, need cooling load larger, and the power that consumes is larger.Therefore, for energy-conservation, indirect outdoor air cooler 120 is set to reduce the temperature of the hot-air that flows into above-mentioned air conditioner unit 112.

Shown wall 1 is any wall of building, and is the border between interior of building and outside.At interior of building, except the inner space that above-mentioned server etc. is installed, also be provided with the space that above-mentioned air conditioner unit 112 grades arrange the place (in the example shown, this is the space adjacent with the inner space, and can such as being called as machine room etc.).The air of interior of building (room air) circulates in building, repeatedly experiences above-mentioned cold air and hot-air state simultaneously.In season beyond summer for example, the air themperature (outdoor air) in the building outside can be considered to lower than the temperature that is in the room air under the hot-air state.

Outdoor air cooler 120 has heat exchanger 121, pressure fan 122, pressure fan 123, room air pipeline 124, outdoor air pipeline 125 etc. indirectly.One end of room air pipeline 124 is arranged on above-mentioned ceiling superjacent air space side, and the other end is arranged on above-mentioned air conditioner unit 112 sides, and is connected to heat exchanger 121 in the centre.The hot-air of above-mentioned ceiling superjacent air space side is because pressure fan 122 flows into room air pipeline 124, and is discharged to air conditioner unit 112 sides, and passes through halfway heat exchanger 121.

At first, (one is called as outdoor air ostium 126 to two any position perforates in wall 1, another is called as outdoor air tap 127), an end of above-mentioned outdoor air pipeline 125 is connected to outdoor air ostium 126, and the other end is connected to outdoor air tap 127.In addition, outdoor air pipeline 125 is connected to heat exchanger 121 midway.Make outdoor air through outdoor air pipeline 125 by pressure fan 123.That is, make flow of outside air enter outdoor air ostium 126 and discharge from outdoor air tap 127, but outdoor air passes through heat exchanger 121 inside halfway.

As above explaination is such, by making room air (hot-air) and outdoor air through the inside of heat exchanger 121, carries out the heat exchange between room air (hot-air) and outdoor air in heat exchanger 121.By this heat exchanger 121, separate to turn up the soil with room air outdoor air is carried out heat exchange, thereby, be included in outdoor air humidity, dust and corrosive gas in outdoor air and can be brought into indoorly, and keep the reliability of server and other electronic equipment.This heat exchanger 121 is the equipment of preexist, does not therefore specifically describe the details of this structure.

If the temperature of room air descends owing to carrying out heat exchange in above-mentioned heat exchanger 121, the hot air temperature that flows in above-mentioned air conditioner unit 112 descends, and therefore, reduces the energy consumption (obtaining energy-conservation effect) of air conditioner 110.The energy consumption that is caused by pressure fan 122 and pressure fan 123 can be considered to relatively low.

Basically, only in the situation that " indoor (heat) air themperature〉outside air temperature ", room air is just come cooling by outdoor air, so that the temperature of indoor (heat) air descends.Therefore, under the lower condition of outside air temperature, such as in the winter time, larger by the effect of (heat) air in heat exchanger 121 cooling chambers, the energy-saving effect of air conditioner 110 is also larger thus.On the other hand, less by the effect of heat exchanger 121 cooling room airs in summer, perhaps there is no effect, perhaps can produce a contrary effect.

As above explaination like that, in the indirect outdoor air cooling system of prior art, indirectly outdoor air cooler 120 is the air conditioners 110 that newly are added to general preexist, and increases the installing space of this tittle.In addition, illustrate although simplify, in fact pipeline (room air pipeline 124 and outdoor air pipeline 125) needs larger installing space.In addition, as above explaination like that, although less also will add the energy consumption of pressure fan 122 and pressure fan 123.And, cause trouble and cause cost when the indirect outdoor air cooler 120 of installing shown in Fig. 4.

Main purpose of the present invention is to provide a kind of integral air conditioner system of compactness.

Integral air conditioner of the present invention system has following structure.

At first, generally speaking, integral air conditioner of the present invention system has the outdoor air unit that room air unit that room air passes through and outdoor air pass through.

Above-mentioned room air unit has First Heat Exchanger, evaporimeter and the first pressure fan, so that room air is by First Heat Exchanger and evaporimeter.

The outdoor air unit has the second heat exchanger, condenser and the second pressure fan, so that outdoor air is by the second heat exchanger and condenser.

Then, air conditioner based on the compression refrigeration circulation is constructed in the following way, namely, provide and be connected to evaporimeter, condenser, be arranged on the expansion valve in outdoor air unit and room air unit and be arranged on the outdoor air unit and the room air unit in one in the refrigerant tubing of compressor, and by making cold-producing medium cycle through evaporimeter, condenser, expansion valve and compressor via refrigerant tubing.

In addition, the outdoor air cooler is constructed in the following way indirectly, namely, the fluid pipeline that is connected to First Heat Exchanger and the second heat exchanger is provided, by making any fluid cycle through First Heat Exchanger and described the second heat exchanger via fluid pipeline, carry out heat exchange between fluid and outdoor air by making in the second heat exchanger, to pass through thus the outdoor air cooling fluid, and carry out heat exchange between cooling fluid and room air by making in First Heat Exchanger, to come cools outdoor air by fluid thus.

The integral air conditioner system constructs by room air unit and outdoor air unit, to comprise the indirect outdoor air refrigerating function that adopts outdoor air to reduce indoor air temperature and the general air conditioning function that adopts the compression refrigeration circulation.

In the integral air conditioner system, for example in the room air unit, First Heat Exchanger, evaporimeter and the first pressure fan can be integrated, to form one-piece type the first stack structure.

In the integral air conditioner system, for example in the outdoor air unit, the second heat exchanger, condenser and the second pressure fan are stacking, to form one-piece type the second stack structure.

Description of drawings

Fig. 1 illustrates the structure of the air-conditioning system (outdoor air cooling system indirectly) of embodiment 1;

Fig. 2 illustrates the structure of the air-conditioning system (integrated air-conditioning system) of embodiment 2;

Fig. 3 is the partial enlarged drawing of the structure of Fig. 2; And

Fig. 4 illustrates the structure of the indirect outdoor air cooling system of prior art.

The optimal mode that carries out an invention

Explain with reference to the accompanying drawings embodiments of the invention.

Fig. 1 illustrates the structure of the air-conditioning system (outdoor air cooling system indirectly) of embodiment 1.

In Fig. 1, come cooling space identical with the example of the prior art shown in Fig. 4 by indirect outdoor air cooling system.That is, be used for cooling inner space such as being the room server etc. that many server racks 102 are installed in it, server unit (computer installation) or other generating component 101 are arranged on these server racks.In this example, above-mentioned inner space is similar to Fig. 4 and is divided into as shown side space and ceiling superjacent air space under Servers installed space, floor.Certainly, other example also is fine, but adopts this example in the present note.In this example, space to be cooled can be considered to the Servers installed space narrowly.

In addition, be similar to the example of Fig. 4, wall 1 is the boundary section between interior of building and building outside, and the air of interior of building (room air) is in the situation that repeatedly experience cold air and the hot-air state circulates.In the present note, the temperature of building extraneous air (outdoor air) is considered to basically lower than the indoor air temperature under hot state.

In building, also there is above-mentioned machine room etc. except above-mentioned inner space.As above explaination like that, machine room is for example adjacent with above-mentioned inner space and invest the space of above-mentioned floor below air and ceiling superjacent air space.The air conditioner unit 12 of following explaination and room air unit 30 etc. are installed in machine room.

Generally speaking, general air conditioner 10 or analog supply to above-mentioned inner space with cold air, and cooling from the inner space return to air (hot-air), again produce cold air.Yet, in this system, before this, adopt outdoor air to reduce the temperature of returning to air (hot-air).

In the example shown, general air conditioner 10 is transported to side space under the floor with cold air, and cold air is supplied to the Servers installed space via side space under the floor, and by each generating component 101 of this chilled air cools.Thus, cold air becomes hot-air, and after in flowing into the ceiling superjacent air space, this hot-air turns back to air conditioner 10 as returning to air; In stage before this, reduce temperature at the indirect interior employing outdoor air of outdoor air cooler 20.Air conditioner 10 can be identical with above-mentioned general air conditioner 110.

In following explanation, suppose that outside air temperature is lower.Statement " outside air temperature is lower " does not refer to that temperature is equal to or less than certain particular value, but depends on room air (hot-air) temperature etc.This fact itself is same as the prior art.As a kind of method, due to when indirectly outdoor air is cooling with the temperature of outdoor air for reducing room air (hot-air), therefore when the above-mentioned air that returns (hot-air) temperature can reduce thus, can say that outside air temperature is lower.As an example, as mentioned above, outside air temperature can be regarded as the situation of " outside air temperature is lower " lower than the situation of room air (hot-air) temperature, but the invention is not restricted to this example.

At this, the structure that cold air is transported to side space under above-mentioned floor is shown general air conditioner 10.This general air conditioner 10 comprises refrigeration unit 11, air conditioner unit 12, expansion valve 13, refrigerant tubing 14 etc.Refrigeration unit 11, air conditioner unit 12, expansion valve 13 and refrigerant tubing 14 can be identical with refrigerant tubing 114 with refrigeration unit 111, air conditioner unit 112, the expansion valve 113 of above-mentioned prior art in Fig. 4.

That is, general air conditioner 10 can be identical with above-mentioned air conditioner 110 or the another kind of general existing air conditioner of prior art.Therefore, do not specifically illustrate or explain details, but air conditioner unit 12 have evaporimeter 12a and pressure fan 12b as shown.In addition, the pressure fan 11a shown in refrigeration unit 11 not only has also has unshowned compressor and condenser.

Like this, in the structure of general air conditioner, general air conditioner 10 has above-mentioned evaporimeter 12a, unshowned compressor and condenser, evaporator valve 13 etc., and makes cold-producing medium via refrigerant tubing 14 these structures of circulation process.That is, cold-producing medium is with common compression refrigeration circulation (evaporation-compression-type kind of refrigeration cycle etc.) circulation of " evaporimeter → compressor → condenser → expansion valve → evaporimeter ".In evaporimeter 12a, cold-producing medium is caught heat from surrounding environment when evaporation, and cooling surrounding air (hot-air of inflow).The heat of catching thus, is dispersed into outdoor air etc. in condenser.Outdoor air is sent to unshowned condenser by pressure fan 11a, and as mentioned above, unshowned condenser is loose to outdoor air with heat.Certainly, after this, outdoor air is discharged to outside refrigeration unit 11.

Shown wall 1 is any wall of building, and has above-mentioned inner space and the space (machine room) adjacent with this inner space in building.Above-mentioned air conditioner unit 12 and following room air unit 30 etc. are arranged in machine room, and above-mentioned refrigeration unit 11 and following outdoor air unit 40 etc. are installed outside the building.Room air circulates in building in (inner space and machine room), repeatedly experience cold air and hot-air state simultaneously, and outdoor air is present in outside building.

Above-mentioned simple explanation is only for general air conditioner 10, but similarly also for the situation of the above-mentioned air conditioner 110 of prior art, desired is, flows into the energy consumption that the temperature of returning to air (hot-air) in the air conditioner unit 12 of general air conditioner 10 reduce general air conditioner 10 by reduction.If overall energy consumption rises, the reduction of the energy consumption of this general air conditioner 10 is insignificant but certainly.Therefore, consider that outdoor air can be used for reducing the temperature of room air (hot-air), and in the prior art, provide a kind of indirect outdoor air cooler 120.

On the other hand, in this example, be provided with unshowned indirect outdoor air cooler 20.

Next, explain in detail indirect outdoor air cooler 20.

Indirectly outdoor air cooler 20 comprises room air unit 30 and outdoor air unit 40.

Room air unit 30 and outdoor air unit 40 are separately made in factory etc., and then being mounted to as shown abuts wall 1(is respectively inner and outer wall).

Building is divided into building outside and interior of building, and wall 1 is as the border, and outdoor air unit 40 is arranged on the building outside, and room air unit 30 is arranged on interior of building.That is, outdoor air unit 40 is mounted to the wall that is positioned at the building outside of abuts wall 1.Room air unit 30 is mounted to the wall that is positioned at the building inboard of abuts wall 1.

Room air unit 30 has half that for example the liquefied gas heat exchanger 31 shown in accompanying drawing, pressure fan 32, pipeline 21(only illustrate pipeline) and circulating pump 22.

Outdoor air unit 40 has half that for example the liquefied gas heat exchanger 41 shown in accompanying drawing, pressure fan 42, pipeline 21(only illustrate pipeline).

When factory etc. is made, room air unit 30 be provided be positioned at such as the box shell, shown in liquefied gas heat exchanger 31 and pressure fan 32 etc., the recording quantity of this shell (do not cover, be in the state that does not have anything).In addition, have in the enclosure two holes illustrated in the accompanying drawings (room air import 33 and room air outlet 34).Be connected with the pipeline 21 of circulating pump 22 in the middle of shown pipeline 21() can be connected to liquefied gas heat exchanger 31 when the manufacturings such as factory, or be connected to when mounted liquefied gas heat exchanger 31.Perhaps, can be in the independent connecting pipe 21 of factory, and circulating pump 22 can be connected to pipeline 21 when mounted.

When factory etc. is made, outdoor air unit 40 be provided be positioned at such as the box shell, shown in liquefied gas heat exchanger 41 and pressure fan 42 etc., the recording quantity of this shell (do not cover, be in the state that does not have anything).

Room air unit 30 and outdoor air unit 40 all are equipped with the above-mentioned opening surface that the wall of abutment walls 1 is placed.

In addition, have two holes shown in accompanying drawing (outside-air intake 43 and outdoor air outlet 44) in the shell of outdoor air unit 40.Pipeline 21 shown in accompanying drawing can be connected to liquefied gas heat exchanger 41 when the manufacturings such as factory, or is connected to when mounted liquefied gas heat exchanger 41.

When mounted, be necessary that the hole is opened in two positions in wall 1, so that above-mentioned pipeline 21 passes.In addition, when pipeline 21(only illustrates the only about half of of pipeline) when making, factory has been arranged on room air unit 30 and outdoor air unit 40 when interior, pipeline 21 such as can weld together at (and this moment, circulating pump 22 also can connect), to form " centre is connected with the pipeline 21 of circulating pump 22 " of accompanying drawing.

By air element 30 in installation room as mentioned above and outdoor air unit 40, construct above-mentioned indirect outdoor air cooler 20.

In above-mentioned indirect outdoor air cooler 20, be similar to the prior art structure shown in Fig. 4, outdoor air and room air carry out heat exchange with being separated from each other, thereby, be included in outdoor air humidity, dust and corrosive gas in outdoor air and can be brought into indoorly, and keep the reliability of server or other electronic equipment.

In addition, as mentioned above, wall 1 is interior must perforate so that pipeline 21 passes, but compare with 127 with being provided with to flow into the hole 126 of discharge for outdoor air as in prior art, aperture is just enough, and installs also simple.

After above-mentioned installation in room air unit 30, pressure fan 32 produces such air-flow (being represented by the dot-and-dash arrowhead in accompanying drawing), this air-flow causes that the hot-air in above-mentioned ceiling superjacent air space flows into from room air import 33, and is particularly passing through liquefied gas heat exchanger 31 through room air unit 30() discharge from room air outlet 34 afterwards.Basically, make the temperature of the hot-airs of discharging from room air outlet 34 lower than the temperature of the hot-air that flows into from room air import 33.

The hot-airs of discharging from room air outlet 34 flow in air conditioner units 12, and cooling by the evaporimeter 12a in air conditioner unit 12 etc., and becoming cold air, and this cold air is delivered to side space under the floor by pressure fan 12b.Reduce as described above hot air temperature, the situation that flows into like this air conditioner unit 12 with hot-air in the ceiling superjacent air space is compared, and has reduced the energy consumption of general air conditioner 10.

After above-mentioned installation in outdoor air unit 40, pressure fan 42 produces such air-flow (being represented by the dot-and-dash arrowhead in accompanying drawing), this air-flow causes that outdoor air flows into from outside-air intake 43, and is passing through outdoor air unit 40(and particularly passing through liquefied gas heat exchanger 41) discharge from outdoor air outlet 44 afterwards.

At this, above-mentioned pipeline 21 is connected to above-mentioned circulating pump 22 at an arbitrary position, and liquid (for example, water) is sealed in pipeline.Thus, by operating above-mentioned circulating pump 22, liquid (for example, water) via pipeline 21 in liquefied gas heat exchanger 31 and the interior circulation of liquefied gas heat exchanger 41 with flow.Liquefied gas heat exchanger 31 and liquefied gas heat exchanger 41 can be identical.

At this, liquefied gas heat exchanger 31 and 41 has the structure of preexist, and does not specifically do detailed explaination, is next simple explanation.In the above-mentioned heat exchanger 121 of prior art, make the gas of two types (be air; Internal heat air and outdoor air) through inner, and by causing the heat exchange between the gas of two types, when outside air temperature was low especially, the internal heat air was cooling by outdoor air.In liquefied gas heat exchanger 31 and 41, make liquid (being for example water) and gas (at this, air) through inner, and by causing that the heat exchange between liquids and gases comes the cooling fluid that is in higher temperature.

Above-mentioned gas (air) is for the internal heat air of liquefied gas heat exchanger 31 and is used for the outdoor air of liquefied gas heat exchanger 41.In addition, aforesaid liquid is water or analog, makes this liquid-circulating by above-mentioned pipeline 21 and circulating pump 22.

When outside air temperature was low, by carry out the heat exchange between aforesaid liquid (water or analog) and outdoor air in liquefied gas heat exchanger 41, the temperature of liquid (water or analog) reduced, and the temperature of outdoor air rises.Thus, the liquid of relatively lower temp (water or analog) is via pipeline 21 in influent gas heat exchanger 31.Like this, in liquefied gas heat exchanger 31, carry out heat exchange between this relatively lower temp liquid (water or analog) and Indoor Thermal air.Thus, the temperature of Indoor Thermal air reduces, and the temperature of liquid (water or analog) rises.Therefore, the liquid of high-temperature (water or analog) is via pipeline 21 in influent gas heat exchanger 41 relatively, and again is cooled as mentioned above by extraneous air.The extraneous air that risen of temperature is discharged from room air outlet 44 thus.

Make air-flows in room air unit 30 by hair-dryer 32 (direction from the top down) downwards in Fig. 1, but also can make progress (direction from top to bottom) move.Similarly, the air-flows in outdoor air unit 40 are made progress in the drawings by hair-dryer 42, but also can move downward.

Yet desired is, the air-flows in room air unit 30 move downward as shown in fig. 1.When downward, the hot-air that is heated by generating component 101 flows downward at the interior cooled air of liquefied gas heat exchanger 31 up, thereby the natural airflows in room air unit 30 meet natural phenomena, and not opposite with free convection.

At this, manufacturing and the installation task of above-mentioned indirect outdoor air cooler 20 is described.

In the example shown in Fig. 1, the shape and size of the shell by making outdoor air unit 40 and room air unit 30 are substantially the same (so that also substantially the same in the erection space on wall) and be arranged to centered by wall 1 shell roughly that left and right symmetrically is integral, and form above-mentioned indirect outdoor air cooler 20.At this, " left and right " is with reference to accompanying drawing.

When these unit are installed, for example, at first offer a plurality of through holes in wall 1.Next, outdoor air unit 40 and room air unit 30 all are arranged on as upper/lower positions: left-right symmetry is (namely centered by wall 1 for the framework that makes shell, with respect to the roughly the same position of wall 1 between them, as shown in fig. 1), screw bolt and nut or analog are used for via above-mentioned a plurality of through holes of offering, outdoor air unit 40 and room air unit 30 being fastened on a plurality of through holes positions in wall 1.In addition, pipeline 21 connects via independent through hole.

In addition, in the example shown in Fig. 1, outdoor air unit 40 and room air unit 30 substantially the same aspect shell and internal structure (as shown in the drawing, left-right symmetry) basically, difference is to be with or without circulating pump 22 etc.Therefore at factory, for example, manufacture the unit that there is no circulating pump 22, there is no the structure of boundary between outdoor and room air unit, and when mounted, the unit can be used as outdoor air unit 40 or room air unit 30.Yet, when being installed as room air unit 30, need to connect circulating pump 22.Yet, improved the manufacturing efficient of factory, and will have the effect of cost.

By above-mentioned indirect outdoor air cooler 20, has following advantageous effects.

In indirect outdoor air cooler 20, a pair of liquid-gas heat exchanger 31 and 41 is arranged on interior of building and outside, and between has wall 1, the internal flow of heat exchanger is liquid, and external fluid is gas, make outdoor air interior mobile as external fluid at a liquid-gas heat exchanger 41, make room air interior mobile as external fluid at another liquid-gas heat exchanger 31, and internal flow (liquid) is circulated in two liquid-gas heat exchangers via pipeline 21.Thus, carry out heat exchange between outdoor air and room air.

By above-mentioned feature, above-mentioned indirect outdoor air cooling system 20 has following advantageous effects.

(1) by left and right symmetrically setting centered by wall 1 and integrated have outdoor air the outdoor air unit 40 of liquid-gas heat exchanger 41 of process and room air the room air unit 30 of liquid-gas heat exchanger 31 of process, can use the shell with substantially the same frame structure in these unit 30 and 40, and reduce manufacturing cost.

(2) in addition, when indirect outdoor air cooling system 20 was installed, outdoor air unit 40 and room air unit 30 use screw bolt and nut or analog were via be fastened on the position at a plurality of through holes place at the interior a plurality of through holes opened of wall 1.Therefore, constructions cost is lower, installs in addition simple.

(3) compare with the system etc. of prior art in Fig. 4, pipe section can reduce, and the pressure loss that causes due to the resistance of ducting can reduce.

The air-conditioning system (integral air conditioner system) of embodiment 2 next, is described.

The air-conditioning system of embodiment 2 also can be known as one type of indirect outdoor air cooling system, but be integrated, have compactly designed.

In the indirect outdoor air cooling system of above-described embodiment 1, advise such structure that is used for indirect outdoor air conditioner system 20, this construct without pipeline and compactness, and is easy to installation; General air conditioner 10 is basically same as the prior art.

In embodiment 2, advise a kind of one-piece type indirect outdoor air cooling system, wherein, the function of the function of integrated indirect outdoor air cooler and general air conditioner.

Thus, can simplify overall device structure, make this equipment can be compacter, cost can reduce, and will reduce but can expect total energy consumption.

Fig. 2 illustrates the structure of the air-conditioning system (integral air conditioner system) of embodiment 2.

In addition, Fig. 3 is the partial enlarged drawing of the structure of Fig. 2.

In Fig. 2, come cooling space identical with the instance space shown in Fig. 1 and Fig. 4 by one-piece type indirect outdoor air cooling system.That is, being used for cooling inner space is for example the room server that many server racks 102 are installed in it, and server unit (computer installation) or other heater element 101 are arranged on these server racks.Cold air is sent to side space under the floor, and cold air supplies to the Servers installed space via side space under the floor, and each heater element 101 is by this chilled air cools.Thus, cold air becomes hot-air, and hot-air flows in the ceiling superjacent air space.

At this, the one-piece type indirect outdoor air cooling system 50 of the structure that cold air is transported to side space under above-mentioned floor shown in being.The structure of the function of the function that one-piece type indirect outdoor air cooling system 50 has indirect outdoor air cooling system 20 integrated and general air conditioner 10.In one-piece type indirect outdoor air cooling system 50, hot-air in above-mentioned ceiling superjacent air space is flowed into, the temperature of this hot-air first function by indirect outdoor air cooler reduces, and then, produces by the function of general air conditioner the cold air that is under set point of temperature.Next, provide detailed description with reference to Fig. 2 and Fig. 3.

One-piece type indirect outdoor air cooling system 50 comprises the room air unit 60 shown in Fig. 2 and 3 and outdoor air unit 70..

When the indirect outdoor air cooler of above-mentioned indirect outdoor air cooling system 50 works, be similar to the structure of example of the prior art shown in Fig. 4 and the structure shown in Fig. 1, when carrying out heat exchange, outdoor air and room air are spaced from each other, thereby, be included in outdoor air humidity, dust and corrosive gas in outdoor air and can be brought into indoorly, and keep the reliability of server or other electronic equipment.

Drive into after row makes at the factory decile, room air unit 60 and outdoor air unit 70 as shown for example with near mode be installed to the wall of wall 1.At this moment, are connected with refrigerant tubing etc. (or two approximate half making in advance by connecting (welding or alternate manner)) by the pipeline 51 shown in further installation, consist of indirect outdoor air cooling system 50.When pipe laying 51 and refrigerant tubing 52, must be provided with through hole in wall 1; As in Fig. 1 and Fig. 4, through hole is formed at four positions.In addition, the manufacturing of room air unit 60 and outdoor air unit 70 and install can be substantially the same with room air unit 30 and the outdoor air unit 40 of above-described embodiment 1, and do not explain further details at this.

Building is divided into building outside and interior of building, and wall 1 is as the border, and outdoor air unit 70 is arranged on the building outside, and room air unit 60 is arranged on interior of building.That is, outdoor air unit 70 is mounted to the wall that is positioned at the building outside of abuts wall 1.Room air unit 60 is mounted to the wall that is positioned at the building inboard of abuts wall 1.

Expectation be that outdoor air unit 70 and room air unit 60 are arranged on corresponding position centered by wall 1.Correspondence position centered by wall 1 is such as being position as shown in Fig. 2 and 3 etc., and when for example seeing from outdoor air unit 70 these sides, is positioned to the inboard that room air unit 60 is present in wall 1.In other words, suppose that the shape and size of shell of the shell of outdoor air unit 70 and room air unit 60 are substantially the same, as shown, these two shells are arranged to respect to wall 1 substantial symmetry relation (in the accompanying drawings, left-right symmetry) basically.Certainly, this structure is not limited to this example, but basically desired be that mounting design becomes easily to install, and therefore pipeline is shorter.

Room air unit 60 has stack structure 61.Stack structure 61 has evaporimeter 61a, liquid-gas heat exchanger 61b, pressure fan 61c etc., and these parts are stacked up to form as shown integral member.Integrated evaporimeter, liquid-gas heat exchanger and pressure fan have some advantageous effects as this structure of stack structure, but the invention is not restricted to this structure example.Yet the feature of embodiment 2 is to adopt the unit of " one-piece type ", and is necessary evaporimeter, liquid-gas heat exchanger and blower setting in room air unit 60.

In addition, have shown room air import 62 and room air outlet 63 and other hole in the shell (box-shaped that for example, has an opening) of room air unit 60.Pressure fan 61c produces as downstream (being represented by the dot-and-dash arrowhead in accompanying drawing), this air-flow makes the hot-air in above-mentioned ceiling superjacent air space flow into unit 60 from room air import 62, and in process room air unit 60(and particularly stack structure 61) discharge from room air outlet 63 afterwards.

Above-mentioned stack structure 61 is configured with the aforesaid liquid of the upstream side that is arranged on this air-flow-gas heat exchanger 61b and is configured with the above-mentioned evaporimeter 61a that is arranged on the downstream.Therefore, the example shown in this structure is not limited to, and can adopt any structure, as long as satisfy this condition.

In addition, although do not specifically illustrate, even if do not adopt stacking (one) member, also need liquid-gas heat exchanger to be arranged on the upstream side of air-flow and the structure that evaporimeter is arranged on the downstream.That is, need such structure, that is, after the temperature that adopts liquid-gas heat exchanger reduction room air (hot-air), be adjusted to set point of temperature (design temperature) in evaporimeter.

The above has described the relative position relation between liquid-gas heat exchanger 61b and evaporimeter 61a; In above-mentioned stack structure 61, can be with the arrange order of pressure fan 61c(with respect to air-flow) be positioned at Anywhere.That is, pressure fan 61c can be in the position of the upstream side farthest of said flow, perhaps in the position in downstream farthest, and perhaps can be in the centre position (between liquid-gas heat exchanger 61b and evaporimeter 61a).Even if adopt stack structure also like this.This is also basically applicable for the stack structure 71 that the following describes.

Outdoor air unit 70 has stack structure 71 etc.Stack structure 71 has condenser 71a, liquid-gas heat exchanger 71b, pressure fan 71c etc., and is configured to that they are stacking and integrated as shown.Yet, be similar to room air unit 60, the invention is not restricted to the example of stack structure.Yet, be similar to room air unit 60, be necessary condenser, liquid-gas heat exchanger and blower setting in outdoor air unit 70.

In addition, outside-air intake 72 and outdoor air outlet 73 and other hole shown in having in the shell of outdoor air unit 70 grades.Pressure fan 71c produces as downstream (being represented by the dot-and-dash arrowhead in accompanying drawing), this air-flow makes outdoor air flow into this unit 70 from outside-air intake 72, and in process outdoor air unit 70(and particularly stack structure 71) discharge from outdoor air outlet 73 afterwards.

The above-mentioned condenser 71a that above-mentioned stack structure 71 is configured with the aforesaid liquid of the upstream side that is arranged on this air-flow-gas heat exchanger 71b and is arranged on the downstream.As above explaination is such, be substantially similar to above-mentioned stack structure 61, the position (with respect to the order that arranges of air-flow) of pressure fan 71c in stack structure 71 is (and the example of structure shown in therefore the invention is not restricted to anywhere, and can adopt any structure, as long as satisfy above-mentioned condition).Even if do not adopt stack structure, also like this.

As above explain like that, being used for the structure shown in Fig. 2 and 3 of room air unit 60 and outdoor air unit 70 is an example, and the invention is not restricted to this example.

Can adopt various structures and the manufacture method of above-mentioned stack structure 61 and 71, and not provide detailed explaination at this, but desired be to adopt to make to be easy to make and/or to make member compact as far as possible structure and manufacture method.For example, as exemplary stack member 61, above-mentioned evaporimeter 61a, liquid-gas heat exchanger 61b and pressure fan 61c can all be contained in any shell (forming unit), and the size and dimension of shell can be substantially the same.In addition, as an example, the shape of shell can for example be essentially cuboid, and by stacking these three cuboids, the shape of stack structure 61 can be essentially cuboid.

In addition, in this example, can be for example by above-mentioned shell being linked together carry out above-mentioned evaporimeter 61a, liquid-gas heat exchanger 61b and pressure fan 61c stacking and integrated (formation of stack structure 61).With shell link together in the bight that can for example be arranged on each shell by bar or bolt are passed the Kong Bingyong fastening nuts or undertaken by some other common methods.

Certainly, can make many holes that room air passes through and the hole that various pipelines etc. pass is arranged in above-mentioned shell.

At this, liquid-gas heat exchanger 31 and 41 that liquid-gas heat exchanger 61b and 71b are substantially similar in embodiment 1 links together via pipeline 51 like that, and makes the liquid (water or analog) in pipeline 51 pass through circulating pump 53 in liquid-gas heat exchanger 61b and 71b and the interior circulation of pipeline 51.Liquid-gas heat exchanger 61b and 71b can be similar to aforesaid liquid-gas heat exchanger 31 and 41 and construct like that; Adopt the structure of preexist, therefore specifically do not explain details.

Aforesaid liquid (water or analog) and above-mentioned room air (hot-air) are through liquid-gas heat exchanger 61b.Thus, carry out the heat exchange between liquid (water or analog) and hot-air in liquid-gas heat exchanger 61b, basically, hot-air is cooled (heat in hot-air moves to liquid), and the temperature of hot-air descends.Yet this depends on the temperature of outdoor air and hot-air, and does not guarantee that the temperature of hot-air can descend.And when outside air temperature was higher, circulating pump 53 can be stopped transport, or taked other measure.

In addition, evaporimeter 61a and condenser 71a are provided with refrigerant tubing 52, expansion valve 54 and compressor 55.Each in these member of formation composition member with general air conditioner 10 basically is identical.That is, in general air-conditioning 10, air conditioner unit 12 comprises above-mentioned evaporimeter 12a and pressure fan 12b, and evaporimeter 61b has the structure corresponding to evaporimeter 12a.In addition, that as above explains is such, and refrigeration unit 11 comprises unshowned compressor and condenser, and the structure of above-mentioned compressor 55 and condenser 71 is corresponding to these parts.Expansion valve 54 has the structure corresponding to expansion valve 13.

As shown, evaporimeter 61a, condenser 71a, expansion valve 54 and compressor 55 are connected to refrigerant tubing 52.Cold-producing medium cycles through evaporimeter 61a, condenser 71a, expansion valve 54 and compressor 55 via refrigerant tubing 52.That is, cold-producing medium circulation in the common compression refrigeration circulation (vapor compression refrigeration type circulation etc.) of " evaporimeter 61a → compressor 55 → condenser 71a → expansion valve 54 → evaporimeter 61a ".In evaporimeter 61a, cold-producing medium the time obtains heat from surrounding environment in evaporation, and cooling surrounding air thus.The heat that obtains is dispersed into outdoor air etc. in condenser 71a.Identical in the function of expansion valve 54 and compressor 55 and prior art, do not provide concrete explaination.

As shown, expansion valve 54 is arranged in room air unit 60, but also can be arranged in outdoor air unit 70.Compressor 55 is arranged in outdoor air unit 70, but also can be arranged in room air unit 60.That is, expansion valve 54 is arranged in room air unit 60 and compressor 55 is arranged on structure, expansion valves 54 in outdoor air unit 70 and is arranged in outdoor air unit 70 and compressor 55 is arranged on structure, expansion valve 54 and compressors 55 in room air unit 60 all to be arranged on the structures that structure in room air unit 60 and expansion valve 54 and compressor 55 all be arranged in outdoor air unit 70 be all feasible.

In addition, in the example shown, circulating pump 53 is arranged in room air unit 60, but also can be arranged in outdoor air unit 70.

Aforesaid liquid-gas heat exchanger 61b and liquid-gas heat exchanger 71b carries out heat exchange between liquids and gases, but other structure also is fine.As substituting of these liquid-gas heat exchangers, the heat exchanger (hereinafter being called as gas-gas heat exchanger) that carries out heat exchange between gas and gas can be set.Certainly, in the case, replace liquid with some gas.If this liquids and gases always are called as " fluid ", aforesaid liquid-gas heat exchanger and gas-gas heat exchanger can always be called as fluid-gas heat exchanger or fluid-fluid heat exchanger.In the case, can say in certain " fluid " flow ipe 51.That is, making arbitrarily, " fluid " circulates between two heat exchangers (in the example shown, they are liquid-gas heat exchanger 61b and liquid-gas heat exchanger 71b, but as mentioned above, other structure also is fine) via pipeline 51.

The above has explained heteroid one-piece type indirect outdoor air cooling system 50.

Below, the operation of the one-piece type indirect outdoor air cooling system 50 of each in the above-mentioned structure of explaination employing.

Namely, when the room air in the ceiling superjacent air space (hot-air) flowed into room air unit 60 via room air import 62, hot-air first passed through liquid-gas heat exchanger 61b, thereby, carry out heat exchange between hot-air and liquid (water or analog), and the temperature of hot-air descends.The degree that descends depends on outside air temperature (fluid temperature) and hot air temperature.

Then, the lowered above-mentioned hot-air of temperature is through evaporimeter 61a.Thus, the lowered hot-air of temperature is cooling by evaporimeter 61a, and still further decline of temperature, to become cold air.This cold air is controlled to is in set point of temperature (design temperature).So far, certainly also there is the controller 80 of not shown (name illustrates in Fig. 3).This controller 80 is controlled whole one-piece type indirect outdoor air cooling system 50, and goes back control example such as pressure fan rotating speed, controlled circulation pump 53 and carry out various other controls; Yet, specifically do not provide explaination.Controller 80 has CPU or other calculation element and memory or another storage device, and controls one-piece type indirect outdoor air cooling system by suitably inputting from the measured value of unshowned various sensors.

In addition, controller 80 can be arranged in the shell of room air unit 60 or the shell of outdoor air unit 70 in, perhaps can be arranged on these outsides, unit (near described unit etc.).In Fig. 3, the not shown various signal lines that relate to controller 80 etc., but have in practice these signal lines, and controller 80 is controlled the above-mentioned one-piece type indirect outdoor air cooling system 50 that is various structures by the sort signal circuit.For example, be provided with unshowned temperature sensor near the outlet of pressure fan 61c, and controller 80 obtains the temperature that records by this temperature sensor via unshowned signal line.Controller 80 is controlled by unshowned signal pipe line and is related to the structure that above-mentioned general compression refrigeration circulates, thereby this temperature that records equals design temperature.

In above-mentioned example, liquid-gas heat exchanger 61b is arranged on the upstream side of thermal air current, and evaporimeter 61a is arranged on the downstream.

Discharge (after through pressure fan 61c) by the cold air that above-mentioned evaporimeter 61a produces from room air outlet 63.At this, as shown in Figure 2, room air outlet 63 is arranged to be connected to side space under the floor.Therefore, as shown in Figure 2, above-mentioned indirect outdoor air cooling system 20 differences of one-piece type indirect outdoor air cooling system 50 and Fig. 1 are to be mounted to a part and extend below the floor.Thus, the cold airs of discharging from room air outlet 63 flow into spaces, below, floor, flow in the Servers installed space via space, below, floor, and cooling heating element 101.By cooling heating element 101, cold air becomes hot-air, and this hot-air flows into ceiling superjacent air space, and again flows into room air unit 60 from above-mentioned room air import 62.

On the other hand, about outdoor air unit 70, the outdoor air that has flowed into outdoor air unit 70 via outside-air intake 72 first passes through liquid-gas heat exchanger 71b, so that carry out heat exchange between outdoor air and liquid (water or analog).When in aforesaid liquid-gas heat exchanger 61b during with the hot-air heat exchange, the temperature of this liquid (water or analog) rises.Heat exchange between liquid (water or analog) by making temperature so increase and outdoor air, the temperature of liquid (water or analog) descends.The liquid that temperature has descended (water or analog) supplies to liquid-gas heat exchanger 61b side by circulating pump 53 and pipeline 51 again.

On the other hand, during due to undercoating liquid-gas heat exchanger 71b and aforesaid liquid (water or analog) heat exchange, the temperature of outdoor air rises.Then, this outdoor air that temperature has risen is through condenser 71a, and because condenser 71a dispels the heat as described above, temperature further rises, and outdoor air is discharged from outdoor air outlet 73 subsequently.

In the above description, " interior of building " can be called as " inboard ".Therefore, " inboard " not only comprises " being used for cooling inner space ", also comprises machine room etc.In other words, " inboard " can be described as above-mentioned " room air " (air of interior of building) existing space.Similarly, in above-mentioned explaination, " building is outside " can be called as " outside ".In other words, " outside " can be described as above-mentioned " outdoor air " air of outside (building) existing space.The implication of " inner space " is slightly different from above-mentioned " inboard ", and it refers to above-mentioned " coming cooling space (being used for cooling inner space) by indirect outdoor air air cooling system ".Therefore, " inner space " do not comprise machine room etc.

By above-mentioned one-piece type indirect outdoor air cooler 50, mainly obtain following advantageous effects.

(a) compactedness

In prior art and embodiment 1, there are two devices, i.e. general air conditioner and outdoor air cooler indirectly can be realized compactedness by integrated these two devices, and can reduce installing space.Even if machine room etc. are less, for example, also make to be easy to install (perhaps, even if also can install) in space too little for the equipment that prior art is installed.

(b) reduce constructions cost by installing without pipeline

This advantageous effects is similar to above-described embodiment 1, need not provide as pipeline of the prior art.For example make room air unit and outdoor air unit at factory in advance, and only by when the structure with these cellular installations (although need to be the perforates on wall such as pipeline) on wall, can reduce the structure labour, and so reduce constructions cost.

(c) by improve compactedness and manufacturing characteristics with stack structure.

In prior art, embodiment 1 etc., about the structure of interior of building, there be (certainly, also can make separately) individually in such as evaporimeter, liquid-gas heat exchanger, pressure fan etc.On the other hand, in embodiment 2, evaporimeter, liquid-gas heat exchanger, pressure fan is stacking and be integrated in stack structure, and therefore can realize compactedness.In addition, make together rather than individually so that manufacture easier.Particularly, by making and the substantially the same shape and size standardization shown in Fig. 2 and 3, can expect manufacturing characteristics will further improve.In addition, can expect the advantageous effects of transporting more greatly convenience and being easy to the installation aspect.

(d) by using common pressure fan reduce to dry power (electric power) and reducing costs

In the structure of embodiment 2, compare with embodiment 1 with prior art, can reduce the number of pressure fan, and the power (electric power) that therefore can reduce to dry, and can reduce costs.For example, in the structure of the embodiment 1 shown in Fig. 1, be provided with four pressure fans, they are pressure fan 11a, pressure fan 12b, pressure fan 32 and pressure fan 42.On the other hand, in the structure of the embodiment 2 shown in Fig. 2 and 3, only two pressure fans, be that pressure fan 61c and 71c are just much of that.That is, the number of pressure fan can reduce by half.Therefore, for example, the cost that the purchase pressure fan causes can reduce by half.In addition, need electric power to make pressure fan operation, but the electric power when adopting two pressure fans and comparing when adopting four pressure fans reduce.

By integral air conditioner of the present invention system, integrated be the device of two in the prior art, be general air conditioner and outdoor air cooler indirectly, and can realize compactedness thus.In addition, in the prior art, the individualisms such as evaporimeter, compressor, heat exchanger, hair-dryer.By these parts are stacking and be integrated into stack structure, can realize further compactedness, and manufacture simpler.And, can reduce the number of hair-dryer, thereby blowing electric power and cost can reduce.

Claims (9)

1. integral air conditioner system, described air-conditioning system comprise room air the room air unit of process and outdoor air the outdoor air unit of process,
Wherein, described room air unit has First Heat Exchanger, evaporimeter and the first pressure fan, so that room air is through described First Heat Exchanger and described evaporimeter;
Described outdoor air unit has the second heat exchanger, condenser and the second pressure fan, so that outdoor air is through described the second heat exchanger and described condenser;
Air conditioner based on compression refrigeration circulation is constructed in the following manner: provide and be connected to described evaporimeter, described condenser, be arranged on the expansion valve in described outdoor air unit and room air unit and be arranged on described outdoor air unit and the room air unit in one in the refrigerant tubing of compressor; And, make cold-producing medium cycle through described evaporimeter, described condenser, described expansion valve and described compressor via described refrigerant tubing; And
The outdoor air cooler is constructed in the following manner indirectly: the pipeline that is connected to described First Heat Exchanger and described the second heat exchanger is provided; Make any fluid cycle through described First Heat Exchanger and described the second heat exchanger via described pipeline; Make in described the second heat exchanger and carry out heat exchange between fluid and outdoor air to pass through thus the cooling described fluid of described outdoor air; And, make in described First Heat Exchanger and carry out heat exchange between cooling fluid and room air to pass through thus the cooling described room air of fluid.
2. integral air conditioner as claimed in claim 1 system, is characterized in that, in described room air unit, described First Heat Exchanger, described evaporimeter and described the first pressure fan are stacking and integrated, to form the first stack structure.
3. integral air conditioner as claimed in claim 1 or 2 system, is characterized in that, in described outdoor air unit, described the second heat exchanger, described condenser and described the second pressure fan are stacking and integrated, to form the second stack structure.
4. as described in any one in claim 1 to 3 integral air conditioner system, it is characterized in that, in described room air unit, described First Heat Exchanger is arranged on the upstream side of the indoor air stream that is formed by described the first pressure fan, and described evaporimeter is arranged on the downstream.
5. according to any one of claims 1 to 4 integral air conditioner system, it is characterized in that, in described outdoor air unit, described the second heat exchanger is arranged on the upstream side of the flow of outside air that is formed by described the second pressure fan, and described condenser is arranged on the downstream.
6. room air unit, described room air unit is arranged on the indoor, and room air is through described room air unit, described room air unit is arranged to corresponding to the outdoor air unit, described outdoor air unit is arranged on the outside, and outdoor air is through described outdoor air unit, and described room air unit comprises:
First Heat Exchanger, evaporimeter and the first pressure fan are so that room air is through described First Heat Exchanger and described evaporimeter;
Wherein, construct in the following manner based on the air conditioner of compression refrigeration circulation: the condenser that is connected in described evaporimeter, described outdoor air unit is provided, is arranged on the expansion valve in described outdoor air unit or room air unit and is arranged on described outdoor air unit or the room air unit in the part of refrigerant tubing of compressor; And, make cold-producing medium cycle through described evaporimeter, described condenser, described expansion valve and described compressor via described refrigerant tubing; And
Indirectly the outdoor air cooler is constructed in the following manner: the part that the fluid pipeline that is connected to the second heat exchanger in described First Heat Exchanger and described outdoor air unit is provided; And, make any fluid via the described fluid pipeline circulation described First Heat Exchanger of process and the second heat exchanger, carry out heat exchange and cooling room air between fluid and room air to make thus in described First Heat Exchanger.
7. outdoor air unit, described outdoor air unit is arranged on the outside, and outdoor air is through described outdoor air unit, described outdoor air unit is arranged to corresponding to the room air unit, described room air unit is arranged on the indoor, and room air is through described room air unit, and described outdoor air unit comprises:
The second heat exchanger, condenser and the second pressure fan are so that outdoor air is by described the second heat exchanger and described condenser;
Wherein, construct in the following manner based on the air conditioner of compression refrigeration circulation: the evaporimeter that is connected in described condenser, described room air unit is provided, is arranged on the expansion valve in described outdoor air unit or room air unit and is arranged on described outdoor air unit or the room air unit in the part of refrigerant tubing of compressor; And, make cold-producing medium cycle through described evaporimeter, described condenser, described expansion valve and described compressor via described refrigerant tubing; And
Indirectly the outdoor air cooler is constructed in the following manner: the part that the fluid pipeline that is connected to the First Heat Exchanger in the second heat exchanger and described room air unit is provided; And make any fluid via the described fluid pipeline circulation described First Heat Exchanger of process and described the second heat exchanger, carry out heat exchange and cooling described fluid between fluid and outdoor air to make thus in described the second heat exchanger.
8. stack structure, described stack structure is configured to cooling room air and is arranged in the room air unit, described room air unit is arranged on the indoor, and room air is through described room air unit, described room air unit is arranged to corresponding to the outdoor air unit, described outdoor air unit is arranged on the outside, and outdoor air is through described outdoor air unit
Wherein, described stack structure is by stacking and integratedly form as lower component:
First Heat Exchanger, described First Heat Exchanger make with described outdoor air unit in outdoor air carried out the fluid of heat exchange and room air through described First Heat Exchanger, and carry out heat exchange between described fluid and described room air;
Evaporimeter, described evaporimeter consists of the compression refrigeration circulation together with described outdoor air unit; And
The first pressure fan.
9. stack structure, described stack structure is configured to the heat in room air is moved on to outdoor air, and be arranged in the outdoor air unit, described outdoor air unit is arranged on the outside, and outdoor air is by described outdoor air unit, and described outdoor air unit is arranged to corresponding to the room air unit, described room air unit is arranged on the indoor, and room air is by described room air unit, and wherein, described stack structure is by stacking and integratedly form as lower component:
The second heat exchanger, described the second heat exchanger make with described room air unit in room air carried out the fluid of heat exchange and outdoor air by described the second heat exchanger, and carry out heat exchange between described fluid and described outdoor air;
Condenser, described condenser consists of the compression refrigeration circulation together with the room air unit; And
The second pressure fan.
CN2011800477814A 2010-11-30 2011-11-21 Integrated air-conditioning system, and internal air unit, external air unit, and laminated body, thereof CN103140718A (en)

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JP2010-267249 2010-11-30
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CN2011800477814A CN103140718A (en) 2010-11-30 2011-11-21 Integrated air-conditioning system, and internal air unit, external air unit, and laminated body, thereof

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103528150A (en) * 2013-10-17 2014-01-22 江苏香江科技股份有限公司 Energy-saving integrated air conditioner for communication machine room
CN104010477A (en) * 2014-06-13 2014-08-27 浪潮电子信息产业股份有限公司 Data center with hot air channel and cold air channel arranged separately
CN105937791A (en) * 2016-05-27 2016-09-14 深圳市英维克科技股份有限公司 Heat dissipating system with external unit for machine room
CN107062386A (en) * 2015-12-02 2017-08-18 谷歌公司 Cool down data center
WO2021000510A1 (en) * 2019-07-03 2021-01-07 北京秦淮数据有限公司 Cooling system used for data center system, and data center system

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140069131A1 (en) * 2012-09-13 2014-03-13 Mitsubishi Electric Corporation Air conditioning system
JP6309775B2 (en) * 2014-02-06 2018-04-11 株式会社竹中工務店 Air conditioning system, combined air conditioning system
CN105627502A (en) * 2014-11-28 2016-06-01 南京五洲制冷集团有限公司 Direct-current variable-frequency all-fresh-air air conditioning unit
JP6413713B2 (en) * 2014-12-04 2018-10-31 富士電機株式会社 Snow and ice air conditioning system
JP6413761B2 (en) * 2014-12-25 2018-10-31 富士電機株式会社 Snow and ice air conditioning system and its control device
US9510486B1 (en) * 2016-07-13 2016-11-29 Matteo B. Gravina Data center cooling system having electrical power generation
US20180279509A1 (en) * 2017-03-23 2018-09-27 Revolver 26 Investment Corporation Packaged glycol run-around cooling air handling unit for multi-story data centers
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JP2019077398A (en) * 2017-10-26 2019-05-23 株式会社デンソー Vehicular heat management system
CN111818783A (en) * 2020-09-08 2020-10-23 苏州浪潮智能科技有限公司 Server data center system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6157536B2 (en) * 1979-08-02 1986-12-08 Daikin Kogyo Co Ltd
JPH02233923A (en) * 1989-03-06 1990-09-17 Matsuda Hirata Sakamoto Sekkei Jimusho:Kk Central direct expansion air conditioning device
JPH10300128A (en) * 1997-04-23 1998-11-13 Matsushita Electric Works Ltd Cooling/dehumidifying apparatus of refrigerant natural circulation type air air-conditioning apparatus combinedly provided therewith
JP2001099446A (en) * 1999-09-30 2001-04-13 Mitsubishi Electric Corp Air conditioning apparatus, and non-humidifying heating body-containing cooling equipment
JP2004132575A (en) * 2002-10-09 2004-04-30 Mitsubishi Electric Corp Cooling device
CN1511436A (en) * 2002-03-28 2004-07-07 三菱电机株式会社 Cooling device
CN101657084A (en) * 2008-08-19 2010-02-24 日立电线株式会社 Data center

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6039111A (en) * 1997-02-14 2000-03-21 Denso Corporation Cooling device boiling and condensing refrigerant
US6539736B1 (en) * 1999-08-03 2003-04-01 Mitsubishi Denki Kabushiki Kaisha Method for controlling to cool a communication station
US6374627B1 (en) * 2001-01-09 2002-04-23 Donald J. Schumacher Data center cooling system
JP5503312B2 (en) * 2010-01-29 2014-05-28 Gac株式会社 Air conditioning system
US20110259573A1 (en) * 2010-04-26 2011-10-27 Gac Corporation Cooling system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6157536B2 (en) * 1979-08-02 1986-12-08 Daikin Kogyo Co Ltd
JPH02233923A (en) * 1989-03-06 1990-09-17 Matsuda Hirata Sakamoto Sekkei Jimusho:Kk Central direct expansion air conditioning device
JPH10300128A (en) * 1997-04-23 1998-11-13 Matsushita Electric Works Ltd Cooling/dehumidifying apparatus of refrigerant natural circulation type air air-conditioning apparatus combinedly provided therewith
JP2001099446A (en) * 1999-09-30 2001-04-13 Mitsubishi Electric Corp Air conditioning apparatus, and non-humidifying heating body-containing cooling equipment
CN1511436A (en) * 2002-03-28 2004-07-07 三菱电机株式会社 Cooling device
JP2004132575A (en) * 2002-10-09 2004-04-30 Mitsubishi Electric Corp Cooling device
CN101657084A (en) * 2008-08-19 2010-02-24 日立电线株式会社 Data center

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103528150A (en) * 2013-10-17 2014-01-22 江苏香江科技股份有限公司 Energy-saving integrated air conditioner for communication machine room
CN104010477A (en) * 2014-06-13 2014-08-27 浪潮电子信息产业股份有限公司 Data center with hot air channel and cold air channel arranged separately
CN107062386A (en) * 2015-12-02 2017-08-18 谷歌公司 Cool down data center
US10342163B2 (en) 2015-12-02 2019-07-02 Google Llc Cooling a data center
US10785896B2 (en) 2015-12-02 2020-09-22 Google Llc Cooling a data center
CN107062386B (en) * 2015-12-02 2020-11-03 谷歌有限责任公司 Cooled data center
CN105937791A (en) * 2016-05-27 2016-09-14 深圳市英维克科技股份有限公司 Heat dissipating system with external unit for machine room
CN105937791B (en) * 2016-05-27 2019-07-19 深圳市英维克科技股份有限公司 A kind of unit external heat dissipation system for computer room
WO2021000510A1 (en) * 2019-07-03 2021-01-07 北京秦淮数据有限公司 Cooling system used for data center system, and data center system

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