CN103261801B

CN103261801B - Utilize the air-conditioning system of outer gas, gas unit, outer gas unit, laminate in it

Info

Publication number: CN103261801B
Application number: CN201180060473.5A
Authority: CN
Inventors: 高桥正树; 峰岸裕一郎; 大贺俊辅
Original assignee: Fuji Electric Co Ltd
Current assignee: Fuji Electric Co Ltd
Priority date: 2010-12-28
Filing date: 2011-12-22
Publication date: 2015-11-25
Anticipated expiration: 2031-12-22
Also published as: US20130283837A1; CN103261801A; WO2012090850A1; JPWO2012090850A1; JP5626365B2

Abstract

Interior gas unit (90) has the laminate (91) be made up of pressure fan (fan) (91a), condenser (91b), liquid-gas-heat exchanger (91c), evaporimeter (91d) etc.The condenser that common Operation system setting outside the building makes outer gas pass through is arranged on inside building to make interior gas pass through condenser in native system.When temperature degree is higher than interior temperature degree outside, the cooling effect of the cold-producing medium of the condenser in native system is higher.Further, because the temperature by interior gas time condenser (91b) rises, therefore can make the indirectly outer gas refrigeration generation effect according to liquid-gas-heat exchanger (91c) etc., its efficiency also uprises.

Description

Utilize the air-conditioning system of outer gas, gas unit, outer gas unit, laminate in it

Technical field

The present invention relates to the air-conditioning system utilizing outer gas.

Background technology

In the past, such as, multiple servers etc. are provided with in the room server etc. of data center or enterprise.This room servers etc. cause the rising of room temperature due to the heat release of server, and likely cause the out of control or fault of server due to the rising of this room temperature.Therefore, room server adopts the air-conditioning system making the temperature in whole room remain constant.And this air-conditioning system almost operates constantly, even if winter is also in running.

Tackle the air-conditioning system in the past of this room server to seek the stable of the room temperature of room server, the Cryogenic air (cold air) be provided in room server from aircondition blowout, in the state current downflow contacted with the server in server rack, cools this server thus.Accordingly, the air (heating installation) warmed according to the heat of server adopts to be got back in aforementioned aircondition from this server, after this aircondition is cooled, again becomes aforementioned cold air and is blown, cold air is provided to the endless form waited in room server again thus.

At this, such as, there is the prior art of record in patent document 1,2.

The invention of patent document 1 can realize with energy-efficient performance while being provided in and guaranteeing enough high frequency countermeasures is preferential running and take Temperature and Humidity Control as the air conditioner of preferential running.

And, the invention of patent document 2 can suppress while being provided in and guaranteeing enough high frequency countermeasures with the indoor temperature change generated in case of the change of operating number and obtain good temperature control energy, and for the air conditioner that can realize best running that energy-efficient performance also carries out considering fully.

Patent document 1: Japan Patent No. 3361458 publication

Patent document 2: Japan Patent No. 3320360 publication

At this, an example of existing outer gas refrigeration system indirectly shown in Figure 14.

In fig. 14, outer gas refrigeration system is the refrigeration system cooled the arbitrary interior space indirectly, is the system without the need to making outer gas flow into the interior space, outer gas being used in refrigeration.This interior space is for be such as provided with multiple room server having carried the server rack 202 of the radiator bodies 201 such as server unit (computer installation).In this interior space, because the thermal discharge of multiple radiator body 201 is large, even if also need winter to freeze.

At this, the above-mentioned interior space is divided into illustrated Servers installed space, floor lower side space, ceiling inner space in this example.Wherein, Servers installed space is the space being provided with the server rack 202 having carried above-mentioned radiator body 201.The upside in Servers installed space has ceiling, and downside has floor, and the space therefore on the upside of ceiling is above-mentioned ceiling inner space, and the space of the downside on floor is above-mentioned floor lower side space.At this, plate or ceiling are obviously offered porose, cold air and heating installation by this hole inflow/outflow in Servers installed space.

Return air (heating installation) from room server such as utilizes general aircondition 210 to cool by illustrated outer gas refrigeration system indirectly, and in its last stage, by utilizing outer gas to make the temperature of return air decline, seeks energy-saving thus.

At this, the air conditioner 210 be made up of illustrated refrigerator 211, air conditioner unit 212, expansion valve 213, refrigerant pipe 214 etc. is existing general air conditioner.That is, air conditioner 210 is use cold-producing medium to take order as the general air conditioner that the general compression freeze cycle (steam compression type freeze cycle etc.) of evaporimeter → compressor → condenser → expansion valve → evaporimeter carries out freezing.

Cold-producing medium is circulated between refrigerator 211, air conditioner unit 212, expansion valve 213 etc. by refrigerant pipe 214.Refrigerator 211 possesses compressor, condenser, fan (pressure fan) etc.Air conditioner unit 212 possesses evaporimeter, fan (pressure fan) etc.

Air conditioner unit 212 sends cold air to the floor lower side space in the above-mentioned interior space, by floor lower side space, cold air is supplied to Servers installed space.This cold air becomes heating installation by the above-mentioned radiator body 201 of cooling, and this heating installation flows into ceiling inner space from Servers installed space.Then, if common refrigeration system, then make this heating installation flow into air conditioner unit 212 from ceiling inner space by air channel etc.Air conditioner unit 212 generates above-mentioned cold air by this inflow heating installation of above-mentioned evaporator cools.

At this, air conditioner unit 212 performs the refrigeration to flowing into heating installation, and to make the temperature of cold air reach set-point (setting value), but the temperature obviously flowing into heating installation is higher, and the load needed for refrigeration is then larger, and power consumption is larger.Therefore, in order to save the energy, be provided with illustrated outer gas refrigeration machine 220 indirectly, to reduce the temperature of the inflow heating installation flowing to above-mentioned air conditioner unit 212.

At this, illustrated wall 1 is the wall of arbitrary building, with this wall 1 for boundary is divided into interior of building and building outside.At interior of building, not only there is the interior space being provided with above-mentioned server etc., also there is the space (be the adjacent space of the interior space in illustrated example, such as, be sometimes referred to as Machine Room etc.) being provided with above-mentioned air conditioner unit 212 grade.Air (interior gas) in building repeat above-mentioned cold air and heating installation state and at building Inner eycle.For the temperature of the air (outer gas) outside building, if the season beyond such as summer, then also can think temperature lower than gas in heating installation state.

Outer gas refrigeration machine 220 possesses heat exchanger 221, pressure fan 222, pressure fan 223, interior gas air channel 224, outer gas air channel 225 indirectly.Its one end, interior gas air channel 224 is arranged on above-mentioned ceiling inner space side, while its other end is arranged on above-mentioned air conditioner unit 212 side, is connected to heat exchanger 221 in midway.Discharge towards air conditioner unit 212 side while above-mentioned ceiling inner space side heating installation flows into interior gas air channel 224 by pressure fan 222, and midway is by heat exchanger 221.

And offer hole (place is called outer air-flow hand-hole 226, and another place is called outer gas tap 227) in any two positions of wall 1, so that the one end in above-mentioned outer gas air channel 225 is connected to outer air-flow hand-hole 226, the other end is connected to outer gas tap 227.And outer gas air channel 225 is connected to heat exchanger 221 in midway.Make outer gas by outer gas air channel 225 by pressure fan 223.That is, make outer gas be discharged by outer gas tap 227 while outer air-flow hand-hole 226 flows into, and outer gas will by heat exchanger 221 in midway.

As mentioned above, indirect outer gas refrigeration system is in the past formed as the structure newly establishing outer gas refrigeration machine 220 indirectly on existing general air conditioner 210, and correspondingly, installation space can increase.Further, illustrate although simplify in figure, air channel (interior gas air channel 224, outer gas air channel 225) in fact occupies very large installation space.And although be smaller, but the electric power consumption that pressure fan 222 and pressure fan 223 are brought also can increase.And, for indirect outer gas refrigeration machine 220 as shown in figure 14, it is bothersome that comparison between projects is set, also can increase cost.

As mentioned above, interior gas (heating installation) and outer gas pass through in heat exchanger 221, the heat exchange of gas (heating installation) and outer gas in performing in heat exchanger 221 thus.At this, according to this heat exchanger 221, by outer gas and interior air bound from and carry out heat exchange, therefore can not bring into the interior space such as the outer air humidity degree be contained in outer gas or dust, corrosive gas etc., the reliability of the electronic equipments such as server can be maintained accordingly.At this, this heat exchanger 221 is existing heat exchanger, no longer specially illustrates for concrete formation.

If make the temperature of interior gas decline by the heat exchange in above-mentioned heat exchanger 221, then the temperature flowing to the inflow heating installation of above-mentioned air conditioner unit 212 can decline, and the electric power consumption of air conditioner 210 can reduce (obtaining energy-saving effect).At this, for the electric power consumption of pressure fan 222 and pressure fan 223, also can be considered as smaller.

Substantially, only when " temperature of the outer gas of temperature > of interior gas (heating installation) ", interior gas just can by outer air cooling but, and the temperature of interior gas (heating installation) just can decline.Therefore, under the situation that temperature degree outer as winter is low, uprised by the cooling effect of gas (heating installation) in heat exchanger 221, the energy-saving effect of air conditioner 210 becomes large accordingly.In addition, in summer, exist and diminish by gas cooling effect in heat exchanger 221 or there is no effect, or produce the possibility of minus effect.Or, be not limited to this seasonal factor, such as, as torrid areas, likely there is the area that outer temperature degree almost in whole 1 year is all very high.

So, have in the air-conditioning system in the space of radiator body at cooling room server etc., especially for the air-conditioning system of seeking energy-saving by utilizing outer gas, even if under main problem is the state that temperature degree is high outside, also outer gas can be used in the refrigeration of the interior space and realizes energy-saving.And except main problem, also exist and further seek energy-saving and seek other problems such as densification, cost degradation.

Summary of the invention

Problem of the present invention relates to the outer gas of utilization and cools the air-conditioning system of the interior space energy-conservationly, even if while the interior air cooling of the outer gas of utilization also can be made when providing a kind of degree of temperature outside high but to play function, the air-conditioning system of the outer gas of utilization of the energy-saving of the air-conditioning system of compression freeze cycle can be sought, gas unit, outer gas unit etc. in it.

The air-conditioning system of the outer gas of utilization of the present invention comprises the part of side disposed in the interior (inside building) and the part of side disposed in the outdoor (outside building).As the air of indoor, especially using from cooling object space return air (heating installation) as interior gas.Wherein, the air of outside is outer gas.

Further, indoor be provided with the first heat exchanger, evaporimeter, condenser, for making interior gas by the first pressure fan of this first heat exchanger, evaporimeter, condenser.

And outside is provided with the second heat exchanger and for making above-mentioned outer gas by the second pressure fan of this second heat exchanger.

Further, expansion valve and compressor is also provided with.These expansion valves and compressor are separately positioned on any side of outside, indoor.

And, be configured to set gradually above-mentioned condenser, above-mentioned first heat exchanger, above-mentioned evaporimeter from the upstream side of the air-flow of gas in being formed by above-mentioned first pressure fan.Therefore, interior gas, first by condenser, passes through the first heat exchanger, afterwards finally by evaporimeter.

Further, the first pipe arrangement being connected to above-mentioned evaporimeter, above-mentioned condenser, above-mentioned expansion valve, above-mentioned compressor is provided with.And, the first cold-producing medium is circulated by the first pipe arrangement in above-mentioned evaporimeter, above-mentioned condenser, above-mentioned expansion valve, above-mentioned compressor, thus forms the air conditioner according to compression freeze cycle.

Further, the second pipe arrangement being connected to above-mentioned first heat exchanger and above-mentioned second heat exchanger is provided with.By this second pipe arrangement, second refrigerant (such as, the cooling fluid such as water) is circulated in the first heat exchanger, the second heat exchanger.

And, form outer air cooling system indirectly by this first heat exchanger and the second heat exchanger and second refrigerant.That is, by above-mentioned first heat exchanger, make above-mentioned second refrigerant and carry out heat exchange by the above-mentioned interior gas of above-mentioned condenser, cool this interior gas by this second refrigerant thus.In above-mentioned second heat exchanger, above-mentioned interior gas and cooled second refrigerant and above-mentioned outer gas is made to carry out heat exchange, thus by this outer air cooling but this second refrigerant.

At this, above-mentioned condenser discharges the heat that above-mentioned evaporimeter absorbs from surrounding (interior gas), usual side disposed in the outdoor (outside building) and externally gas carry out heat release.To this, in said structure, condenser side disposed in the interior (inside building).Therefore, by condenser, temperature rises larger interior gas.And the interior gas after temperature rises carries out heat exchange with outer gas indirectly by above-mentioned second refrigerant.Therefore, even if when temperature degree is very high outside, outer gas also can be utilized to cool interior gas.

Further, in above-mentioned condenser, above-mentioned cold-producing medium by above-mentioned interior air cooling but.Therefore, especially outside under the environment of temperature degree higher than interior temperature degree (temperature by before condenser), the cooling effect of the first cold-producing medium in condenser becomes higher.That is, as common situation, make outer gas by condenser by outer air cooling the first cold-producing medium when, the cooling effect step-down of the first cold-producing medium under the environment that temperature degree is very high outside.And, especially under the environment of " in outer temperature degree > temperature degree ", use interior gas to make the cooling effect of the first cold-producing medium uprise on the contrary.Accordingly, in the structure of the invention described above, at least under such circumstances, the power consumption of the air conditioner that compression freeze cycle causes can suppress for lower than ever mutually.

Accompanying drawing explanation

Fig. 1 is the pie graph of the air-conditioning system of embodiment one.

Fig. 2 is the pie graph of the air-conditioning system of embodiment two.

Fig. 3 is the enlarged drawing of the local of the structure of Fig. 2.

Fig. 4 is the pie graph of the air-conditioning system (one) of embodiment three.

Fig. 5 A is the pie graph of the first case of the air-conditioning system (its two) of embodiment three.

Fig. 5 B is the pie graph of the second case of the air-conditioning system (its two) of embodiment three.

Fig. 6 is the figure of the action model of the air-conditioning system that embodiment three is shown.

(a) ~ (d) of Fig. 7 is the figure for being described with embodiment three more in the past.

Fig. 8 is the variation of the structure of Fig. 4.

Fig. 9 is the variation of the structure of Fig. 5 A.

Figure 10 is the concise and to the point pie graph of the entirety of the air-conditioning system comprising embodiment three.

Figure 11 is the pie graph of the air-conditioning system (one) of embodiment four.

Figure 12 is the pie graph of the air-conditioning system (its two) of embodiment four.

Figure 13 is the figure of the action model of the air-conditioning system that embodiment four is shown.

Figure 14 is the figure of an example of the indirect outer gas refrigeration system illustrated in the past.

Detailed description of the invention

Below, with reference to accompanying drawing, embodiments of the present invention are described.

Wherein, " indoor " in this explanation refers to " inner side of building ".Therefore, " indoor " is not only " becoming the interior space of cooling object ", also comprises Machine Room etc.In other words, " indoor " is alternatively the space that above-mentioned " interior gas " (air in building) exists.Equally, " outside " in this description refers in above-mentioned " outside of building ".In other words, " outside " is alternatively the space that above-mentioned outer gas (air outside building) exists.At this, the meaning of " interior space " and above-mentioned " indoor " is slightly different, following " the cooling object space (becoming the interior space of cooling object) of outer gas refrigeration system indirectly: refer to Servers installed space wherein in the narrow sense further ".Therefore, " interior space " does not comprise Machine Room etc.

Fig. 1 is the pie graph of the air-conditioning system (indirectly outer gas refrigeration system) of embodiment one.

Wherein, in Fig. 1, the cooling object space of outer air cooling system is identical with the past case shown in Figure 14 indirectly.That is, the interior space becoming cooling object is such as be provided with multiple room server etc. having carried the server rack 102 of the radiator bodies 101 such as server unit (computer installation).Wherein, the above-mentioned interior space is divided into illustrated Servers installed space, floor lower side space, ceiling inner space in this example as Figure 14.Certainly be not limited to this example, in this explanation, use this example.Wherein, in this instance, cool object and in a narrow sense can be regarded as Servers installed space.

And identical with the example of Figure 14, to be divided into inside building by wall 1 and outside building, the air (interior gas) inside building repeats cold air state and heating installation state and circulates.And, in the present note, be substantially considered as the temperature of temperature lower than gas in heating installation state of the air (outer gas) outside building.

In building, not only there is the above-mentioned interior space, also there is above-mentioned Machine Room etc.As mentioned above, Machine Room is the space adjacent with the such as above-mentioned interior space, is formed be connected with above-mentioned floor lower side space, ceiling inner space.Air conditioner unit 12 described later, interior gas unit 30 etc. are provided with in Machine Room.

Briefly, general air conditioner 10 grade also cools the return air (heating installation) from the interior space to above-mentioned interior space supply cold air and again generates cold air.But, in native system, utilize outer gas that the temperature of return air (heating installation) is declined before this.

In illustrated example, general air conditioner 10 sends cold air to floor lower side space, and by floor lower side space to Servers installed space supply cold air, cools each radiator body 101 by this cold air.Accordingly, cold air becomes heating installation, and this heating installation gets back to air conditioner 10 as return air after flowing into ceiling inner space, but in indirect outer gas refrigeration machine 20, utilizes outer gas before this and temperature is reduced.Wherein, air conditioner 10 can be identical with above-mentioned general air conditioner 210 in the past.

And, wherein, in the following description, in addition the temperature of gas low premised on.Wherein, " temperature of outer gas is low " does not refer to that specifically to reach several DEG C such as the following, but depends on the temperature etc. of interior gas (heating installation).These contents itself are as in the past.A kind of viewpoint is, outer gas freezes for utilizing outer gas to make the temperature of interior gas (heating installation) decline indirectly, and the situation that therefore conclusion can reduce the temperature of above-mentioned return air (heating installation) is the period that the temperature of outer gas is low.As an example, as mentioned above, the temperature of outer gas lower than the situation being considered as " temperature of outer gas is low " period of the temperature of interior gas (heating installation), but is not limited thereto example.

At this, the device sending cold air to above-mentioned floor lower side space is illustrated general air conditioner 10.This general air conditioner 10 is made up of refrigerator 11, air conditioner unit 12, expansion valve 13, refrigerant pipe 14 etc.These refrigerators 11, air conditioner unit 12, expansion valve 13, refrigerant pipe 14 can be identical with the refrigerator 211 in the past shown in Figure 14, air conditioner unit 212, expansion valve 213, refrigerant pipe 214.

That is, general air conditioner 10 can be identical with existing general airconditions such as above-mentioned air conditioners 210 in the past.Therefore, not in specially diagram and explanation in detail, air conditioner unit 12 has illustrated evaporimeter 12a, pressure fan (fan) 12b.And refrigerator 11 not only has illustrated pressure fan (fan) 11a, also has not shown compressor, condenser.

So, general air conditioner 10 has the above-mentioned evaporimeter 12a of the part as general air conditioner, not shown compressor and condenser, expansion valve 13 etc., and cold-producing medium is circulated at these parts by refrigerant pipe 14.That is, cold-producing medium circulates with the general compression freeze cycle (steam compression type freeze cycle etc.) of " evaporimeter → compressor → condenser → expansion valve → evaporimeter ".Heat around absorbing when cold-producing medium evaporates in evaporimeter 12a, to cool ambient air (inflow heating installation).The heat absorbed is discharged to outer gas etc. by condenser.By pressure fan (fan) 11a, outer pneumatic transmission is entered not shown condenser, condenser not shown thus carries out heat release as described above.Certainly, after this, this outer gas is discharged to the outside of refrigerator 11.

Wherein, illustrated wall 1 is the wall of arbitrary building, and this interior of building exists the adjacent space (Machine Room) of the above-mentioned interior space, this interior space.Above-mentioned air conditioner unit 12, interior gas unit 30 described later etc. are arranged in Machine Room, and above-mentioned refrigerator 11, outer gas unit 40 described later are arranged on outside building.Interior gas (interior space and Machine Room) inside building repeats heating installation state and cold air state and circulates, and outer gas is then present in the outside of building.

Above-mentioned simple explanation has only been carried out for general air conditioner 10, but be preferably, the same with the situation of above-mentioned air conditioner 210 in the past, by reducing the temperature of the return air (heating installation) of the air conditioner unit 12 flowing into general air conditioner 10, reduce the power consumption of general air conditioner 10 thus.But, even if reduce the power consumption of general air conditioner 10, if the electric power consumption of entirety increases, then meaningless.Accordingly, can consider to utilize outer gas to reduce the temperature of interior gas (heating installation), be provided with outer gas refrigeration machine 220 indirectly in the past.

To this, in this example, illustrated outer gas refrigeration machine 20 is indirectly provided with.

Below, indirect outer gas refrigeration machine 20 is described in detail.

First, outer gas refrigeration machine 20 is made up of interior gas unit 30 and outer gas unit 40 indirectly.

Interior gas unit 30 and outer gas unit 40 are set to be close to wall 1(respectively at inwall, outer wall after such as manufacturing separately in factory etc. respectively as shown in figure).

Wherein, with wall 1 for boundary is divided into outside (outside building) and indoor (inside building), and outer gas unit 40 side disposed in the outdoor, interior gas unit 30 side disposed in the interior.That is, outer gas unit 40 is set to the outside wall being close to wall 1.Interior gas unit 30 is set to the indoor wall being close to wall 1.

Interior gas unit 30 such as has illustrated liquid-gas-heat exchanger 31, pressure fan (fan) 32, a pipe arrangement 21(part wherein; About half), circulating pump 22.

Outer gas unit 40 such as has illustrated liquid-gas-heat exchanger 41, pressure fan (fan) 42, a pipe arrangement 21(part wherein; About half).

When interior gas unit 30 is manufactured in factory etc., such as in one side by the casing of the box of opening (opening, the state without any parts), illustrated liquid-gas-heat exchanger 31, pressure fan (fan) 32 etc. are set.And, casing offers illustrated two holes (interior air flow inlet 33, interior gas outlet 34).Wherein, illustrated pipe arrangement 21(is connected with in midway the pipe arrangement 21 that circulation touches 22) both can manufactured in factory etc. time be connected to liquid-gas-heat exchanger 31 in advance, also can be connected to liquid-gas-heat exchanger 31 when arranging.Or, at factory's only connecting pipings 21, and when arranging, circulating pump 22 can also be connected to pipe arrangement 21.

Outer gas unit 40 such as arranges illustrated liquid-gas-heat exchanger 41, pressure fan (fan) 42 etc. time manufactured in factory etc. in the casing of the box of one side open (opening, the state without any parts).

Wherein, interior gas unit 30, outer gas unit 40 are all configured such that the above-mentioned wall being fitted to wall 1 by the face opened.

And, the casing of outer gas unit 40 offers illustrated two holes (outer air flow inlet 43, outer gas outlet 44).Wherein, illustrated pipe arrangement 21 both can manufactured in factory etc. time be connected to liquid-gas-heat exchanger 41 in advance, also can be connected to liquid-gas-heat exchanger 41 when arranging.

Wherein, when arranging, need on wall 1, offer two through holes for making above-mentioned pipe arrangement 21 pass.And, be provided with a pipe arrangement 21(part wherein respectively at interior gas unit 30 and outer gas unit 40 when manufacturing in factory etc.; About half) time, also can be waited each other by this pipe arrangement 21 of welding (and, now, also connect circulating pump 22), formed illustrated " midway is connected with the pipe arrangement 21 of circulating pump 22 ".

Interior gas unit 30, outer gas unit 40 are set as described above, thus form above-mentioned outer gas refrigeration machine 20 indirectly.

Due to by outer gas and interior air bound from and carry out heat exchange, therefore in above-mentioned outer gas refrigeration machine 20 indirectly, in the past identical with shown in Figure 14, outer gas and interior gas phase are isolated mutually and carry out heat exchange, so can not bring to the interior space the outer air humidity degree or dust, corrosive gas that contain in outer gas into, therefore the reliability of the electronic equipment such as server will be maintained.

And, as mentioned above, need the hole offered on wall 1 for making pipe arrangement 21 pass, but compare with the situation in the hole 226,227 of discharging for making outer gas flow into setting in the past, owing to only needing to arrange aperture, therefore technique is set and becomes easy.

In above-mentioned example, pipe arrangement 21 is divided into be made cold-producing medium from the pipe arrangement of outer gas unit stream inside gas unit and makes cold-producing medium from the pipe arrangement of the outside gas unit of interior gas unit stream, amount to two pipe arrangements, therefore on wall 1, offer two through holes, but embodiments of the present invention are not limited thereto example.Such as, also can offer a large through hole, make two pipe arrangements 21 all through this hole accordingly.

In above-mentioned example, interior gas unit 30 and outer gas unit 40 are all configured such that the wall being fitted to wall 1 by the face opened, but embodiments of the present invention are not limited thereto example.Such as, also can be in the factory, interior gas unit 30 and outer gas unit 40 are fabricated to after welding pipe arrangement 21 etc., are embodied as gas unit inside and outside integration, and the shape hole identical with gas unit inside and outside integration is set on wall 1, thus inside and outside gas unit is buried underground on wall.

In after above-mentioned setting in gas unit 30, pressure fan (fan 32) produces the air-flow (representing by dash-dot arrows in figure) of following air, namely, the heating installation of above-mentioned ceiling inner space is made to flow into interior air flow inlet 33, and by within interior gas unit 30 (especially, in liquid-gas-heat exchanger 31) after, discharge from interior gas outlet 34.Substantially, the temperature of the heating installation of discharging from interior gas outlet 34 is lower than the temperature of the heating installation flowed into by interior air flow inlet 33.

The heating installation of discharging from interior gas outlet 34 flows within air conditioner unit 12, and become cold air by coolings such as the evaporimeter 12a in air conditioner unit 12, this cold air is sent to floor lower side space by pressure fan (fan) 12b.Reduce the temperature of heating installation as described above, compared with directly entering the situation of air conditioner unit 12 with the heating installation of ceiling inner space, the power consumption of general air conditioner 10 can be reduced.

In outer gas unit 40 after above-mentioned setting, pressure fan 42 produces the air-flow (in figure, representing with dotted arrow) of following air, that is, outer gas is made to be flowed into by outer air flow inlet 43, and interior (especially by outer gas unit, in liquid-gas-heat exchanger 41) after, discharge from outer gas outlet 44.

At this, while its arbitrary position of above-mentioned pipe arrangement 21 is connected with above-mentioned circulating pump 22, in pipe arrangement, be sealed with the cold-producing mediums such as liquid (such as, water).Accordingly, by the above-mentioned circulating pump 22 that operates, this liquid (such as, water) is made to be circulated in liquid-gas-heat exchanger 31, liquid-gas-heat exchanger 41 by pipe arrangement 21 and flow.Liquid-gas-heat exchanger 31 and liquid-gas-heat exchanger 41 can be identical parts.

At this, liquid-gas-heat exchanger 31,41 is existing parts, therefore no longer describes in detail and is described simply.Above-mentioned heat exchanger 221 in the past (is air by making two kinds of gases, interior gas (heating installation) and outer gas) inner by it, and make to produce heat exchange between these two kinds of gases, thus cool interior gas (heating installation) by outer gas when temperature degree is low especially outside.Liquid-gas-heat exchanger 31,41, by making liquid (such as, water) and gas (in this case air) by its inside, makes to produce heat exchange between liquids and gases, thus the side that chilling temperature is higher.

Wherein, above-mentioned gas (air) is interior gas (heating installation) in liquid-gas-heat exchanger 31, in liquid-gas-heat exchanger 41, become outer gas.And aforesaid liquid is the water etc. circulated by above-mentioned pipe arrangement 21, circulating pump 22.

When temperature degree is low outside, pass through the heat exchange of aforesaid liquid (water etc.) and outer gas in liquid-gas-heat exchanger 41, the temperature of liquid (water etc.) declines, and the temperature of outer gas rises.Accordingly, the liquid (water etc.) of relative low temperature flows into liquid-gas-heat exchanger 31 inside by pipe arrangement 21.Accordingly, in liquid-gas-heat exchanger 31, the liquid (water etc.) of this relative low temperature carries out heat exchange with interior gas (heating installation).Thus, the temperature of interior gas (heating installation) declines, and liquid (water etc.) temperature rises.Thus, the liquid (water etc.) becoming relatively-high temperature flows within liquid-gas-heat exchanger 41 by pipe arrangement 21, again as described above by outer air cooling but.Wherein, the outer gas that temperature rises thus is discharged by outer gas outlet 44.

Wherein, the flowing of the air in interior gas unit 30 is according to pressure fan 32, and wind direction is formed as in downward direction in (from upper direction down) in FIG, but also can be formed as upward direction (under direction upward).Equally, the flowing of the air in outer gas unit 40 is according to pressure fan 42, and wind direction is formed as upward direction in FIG, but also can be formed as in downward direction.

But the flowing of the air in interior gas unit 30 preferably as shown in Figure 1 in downward direction.During formation like this, above the warm air warmed at radiator body 101 is positioned at, and by the air flows down that liquid-gas-heat exchanger 31 cools, the circulation of the air therefore in gas unit 30 can not with free convection natural process phenomenon on the contrary mutually.

At this, for above-mentioned indirectly outer gas refrigeration machine 20 manufacture and technique be set be described.

In the example of Fig. 1, outer gas unit 40 makes the shape of its casing almost identical with size (therefore with interior gas unit 30, erection space on wall also becomes almost identical), by being configured to roughly symmetrical and being integrally formed centered by wall 1, form above-mentioned outer gas refrigeration machine 20 indirectly thus.Wherein, left and right is the left and right sides in figure.

When arranging these unit, such as, first on wall 1, multiple through hole is offered.Then, (namely the framework that outer gas unit 40 and interior gas unit 30 are configured in its casing is respectively clipped the symmetrical position of wall 1, as shown in Figure 1, clip wall 1 almost in identical position), utilize fixing outer gas unit 40 and the interior gas unit 30 such as screw bolt and nut by the multiple through holes being located in above-mentioned wall 1 in the position of the plurality of through hole.And, by other through hole connecting pipings 21.

And in the example shown in Fig. 1, not only casing is roughly the same for outer gas unit 40 and interior gas unit 30, also roughly the same (as shown in the figure, roughly symmetrical), difference is with or without circulating pump 22 formation of its inside.Therefore, such as, in factory etc., not distinguishing outer gas unit and interior gas unit and manufacture the unit not having circulating pump 22, this unit can be used as any one unit in outer gas unit 40 and interior gas unit 30 when arranging thus.But, when using as interior gas unit 30, need the operation carrying out connecting circulating pump 22 when arranging.Really like this, the manufacture efficiency of factory can be improved, thus the effect that cost declines can also be expected.

Following effect can be brought according to above-mentioned indirect outer gas refrigeration machine 20.

Namely, indirectly by the wall 1 of separation building inner side and outer side, to configure internal flow be liquid and external fluid to outer gas refrigeration machine 20 is a pair liquid-gas-heat exchanger 31,41 of gas, and outer gas is circulated as the external fluid of the liquid-gas-heat exchanger 41 of a side, interior gas is circulated as the external fluid of the liquid-gas-heat exchanger 31 of the opposing party, and by pipe arrangement 21, the internal flow of two liquid-gas-heat exchangers (liquid) is circulated.Accordingly, the heat exchange of outer gas and interior gas is performed.

Above-mentioned outer gas refrigeration machine 20 indirectly reaches following effect according to above-mentioned feature.

(1) by by have liquid-gas-heat exchanger 41 that outer air-flow is led to outer gas unit 40 and have interior air-flow is led to liquid-gas-heat exchanger 31 in gas unit 30 in symmetric configuration integrated centered by wall 1, and these unit 30,40 can use the casing of the framework with same general configuration, can reduce manufacturing cost thus.

(2) and, when arranging indirect outer gas refrigeration machine 20, by the multiple through holes worn on wall 1 utilize screw bolt and nut etc. in the position of the plurality of through hole fixing outer gas unit 40 and interior gas unit 30, therefore can reduce operating expenses, and engineering is set also becomes easy.

(3) with the systematic comparison in the past of Figure 14 etc., air passage portion can be removed, therefore, it is possible to the pressure loss that the resistance reducing air channel causes.

Below, the air-conditioning system (integral air conditioner system) about embodiment two is described.

Wherein, the air-conditioning system of embodiment two also belongs to the one in indirect outer gas refrigeration system, its type that forms as one, and is formed as compact structure.

In the indirect outer gas refrigeration system of above-described embodiment one, about indirect outer gas refrigeration machine 20 recommendation without air channel and compact and structure that is that easily arrange, but for general air conditioner 10, then with in the past roughly the same.

In embodiment two, release the function of outer gas refrigeration machine 20 and the function of general air conditioner 10 indirectly and be bundled into one, one-piece type outer gas refrigeration system indirectly.

Thus, the simplification of whole apparatus structure can be sought, and device can be made compacter, can reduce costs, the minimizing of overall power consumption can also be expected.

Fig. 2 is the pie graph of the air-conditioning system (integral air conditioner system) of embodiment two.

And Fig. 3 is the enlarged drawing of the local of the structure of Fig. 2.

Wherein, in fig. 2, the cooling object space based on one-piece type outer gas refrigeration system is indirectly identical with the example shown in Fig. 1 or Figure 14.That is, as cooling the interior space of object such as being provided with multiple room server etc. having carried the server rack 102 of the radiator bodies 101 such as server unit (computer installation).And, send cold air to floor lower side space, via floor lower side space to Servers installed space supply cold air, and utilize this cold air to cool each radiator body 101.Accordingly, cold air becomes heating installation, and this heating installation flows into ceiling inner space.

At this, the device sending cold air to above-mentioned floor lower side space is illustrated one-piece type outer gas refrigeration system 50 indirectly.One-piece type outer gas refrigeration system 50 indirectly has the formation indirect function of outer gas refrigeration machine and the function of general air conditioner rolled into one.One-piece type outer gas refrigeration system 50 indirectly makes the heating installation of above-mentioned ceiling inner space flow into, and first relies on the function of outer gas refrigeration machine indirectly to reduce the temperature of heating installation, then relies on the function of general air conditioner to produce the cold air of predetermined temperature.Below, be described in detail with reference to Fig. 2, Fig. 3.

One-piece type indirectly outer gas refrigeration system 50 is made up of gas unit 60 in shown in Fig. 2, Fig. 3 and outer gas unit 70.

Wherein, the function of the above-mentioned one-piece type indirect outer gas refrigeration machine of outer gas refrigeration system 50 is indirectly identical with the structure shown in the past case shown in Figure 14 or Fig. 1, outer gas and interior gas mutually isolated and carry out heat exchange, therefore can not bring the outer air humidity degree be contained in outer gas or dust, corrosive gas into the interior space, thus the reliability of the electronic equipments such as server is maintained.

After interior gas unit 60 and outer gas unit 70 are such as manufactured individually in factory etc. respectively, be set to the wall being close to wall 1 as shown in figure.Now, by arrange further illustrated pipe arrangement 51, refrigerant pipe 52(or, connect the part that (welding etc.) is made as roughly half), thus be integrally formed type outer gas refrigeration system 50 indirectly.Wherein, need the through hole arranged on wall 1 for arranging pipe arrangement 51, refrigerant pipe 52, the structure of this through hole is identical with the through hole of Fig. 1 with Figure 14, arranges 4.Wherein, about manufacture and the setting of interior gas unit 60 and outer gas unit 70, can be roughly the same with outer gas unit 40 etc. with gas unit 30 in above-described embodiment one, no longer illustrate in greater detail at this.

Wherein, with wall 1 for boundary is divided into outside (outside building) and indoor (inside building), outer gas unit 70 side disposed in the outdoor, interior gas unit 60 side disposed in the interior.That is, outer gas unit 70 is set to the wall of the outside being close to wall 1.Interior gas unit 60 is set to the wall of the indoor being close to wall 1.

Preferably, outer gas unit 70 and interior gas unit 60 clip wall 1 and are arranged on mutually corresponding position.The position clipping wall 1 mutually corresponding is the position that such as Fig. 2 or Fig. 3 etc. illustrates, such as, when observing from outer gas unit 70 side, and the position of gas unit 60 in the inner side of wall 1 exists.Alternatively, suppose that the casing of outer gas unit 70 as shown in the figure and the casing of interior gas unit 60 have roughly the same shape and size, then these two casings are configured to be formed the relation of roughly symmetrical (for roughly symmetrical in figure) in wall 1 as shown in the figure.Certainly, be not limited to such example, be substantially preferably set to become easily setting and pipe arrangement is shortened.

Interior gas unit 60 has laminate 61 etc.Laminate 61 has evaporimeter 61a, liquid-gas-heat exchanger 61b, pressure fan (fan) 61c etc., these parts lamination and being integrally constituted as shown in figure.Wherein, so evaporimeter, liquid-gas-heat exchanger, pressure fan (fan) are formed one-piece type structure as laminate and have lot of advantages, but be not limited to this configuration example.But the feature of embodiment two is " one-piece type " unit, need to arrange evaporimeter, liquid-gas-heat exchanger, pressure fan (fan) in gas unit 60 therefore.

And, offer the hole of illustrated interior air flow inlet 62, interior gas outlet 63 etc. in the casing (such as, the box etc. of one side open) of interior gas unit 60.Pressure fan (fan) 61c produces the air-flow of following air (in figure, represent with dash-dot arrows), namely, the heating installation of above-mentioned ceiling inner space is made to flow in this interior gas unit 60 from interior air flow inlet 62, and by after (especially in laminate 61) in interior gas unit 60, discharge from interior gas outlet 63.

Above-mentioned laminate 61 is configured to arrange above-mentioned liquid-gas-heat exchanger 61b at the upstream side of the air-flow of such air, arranges above-mentioned evaporimeter 61a in downstream.Therefore, be not limited to illustrated configuration example, as long as can meet this condition, then any structure can.

And, although do not illustrate especially, when there is no laminate (one-piece type), also needing to arrange liquid-gas-heat exchanger at the upstream side of air draught, evaporimeter is set in downstream.That is, need be configured to, for interior gas (heating installation), after reducing temperature by liquid-gas-heat exchanger, be adjusted in evaporimeter and reach predetermined temperature (design temperature).

Wherein, above-mentioned item relates to the relative position relationship of liquid-gas-heat exchanger 61b and evaporimeter 61a, and in above-mentioned laminate 61, pressure fan (fan) 61c can be arranged on any position (configuration sequence for the air-flow of air).That is, pressure fan 61c can be arranged on any one position in the position of the most upstream of above-mentioned air draught, the position of most downstream, centre position (liquid-between gas-heat exchanger 61b and evaporimeter 61a).This is also the same for not having the situation of laminate.And this is also much the same for other laminates 71,81,91,91 ', 111,121,121 ' described later etc.

Outer gas unit 70 has laminate 71 etc.Laminate 71 has condenser 71a, liquid-gas-heat exchanger 71b, pressure fan (fan) 71c etc., these parts as shown in figure lamination and formed one.But, the same with interior gas unit 60, might not laminate be formed.But, the same with interior gas unit 60, need in outer gas unit 70 to arrange condenser, liquid-gas-heat exchanger, pressure fan (fan).

And, the casing of outer gas unit 70 etc. offer the hole of illustrated outer air flow inlet 72, outer gas outlet 73 etc.Pressure fan (fan) 71c produces the air-flow (representing with dotted arrow in figure) of following air, that is, outer gas is made to flow in this outer gas unit 70 from outer air flow inlet 72, and interior (especially by outer gas unit 70, in laminate 71) after, discharge from outer gas outlet 73.Above-mentioned laminate 71 is configured to arrange above-mentioned liquid-gas-heat exchanger 71b at the upstream side of such air draught, arranges above-mentioned condenser 71a in downstream.And, as described, also the same with above-mentioned laminate 61 about laminate 71, pressure fan (fan) 71c can be arranged on any position (configuration sequence for air draught) (therefore, be not limited to illustrated configuration example, as long as the structure of above-mentioned condition can be met, then any structure can).This is also the same for not having the situation of laminate.

As mentioned above, the structure shown in Fig. 2 and Fig. 3 of any one of interior gas unit 60 and outer gas unit 70 is only the example illustrated, is not restricted to this example.This is also the same for the structure shown in later other figure of Fig. 4.

The structure of above-mentioned laminate 61,71 and manufacture method can be varied, are not described in detail in this, but are preferably easily manufacture and/or realize compact structure and manufacture method as far as possible.Such as, for laminate 61, can consider by described evaporimeter 61a, liquid-gas-heat exchanger 61b, pressure fan (fan) 61c whole be contained in (blocking) arbitrary casing while, make the size and shape of this casing roughly the same.And, such as, as an example, can consider to make the shape of this casing such as roughly form cuboid, by lamination three this cuboids, make the shape of laminate 61 roughly become cuboid etc.

And in this embodiment, for the lamination of above-mentioned evaporimeter 61a, liquid-gas-heat exchanger 61b, pressure fan (fan) 61c, integration (formation of laminate 61), such as, as an example, by being connected to each other, said machine casing is carried out.Casing connection each other can use the hole of such as bar or bolt being inserted and being arranged on the corner of each casing and the method that to utilize nut etc. to be fixed etc. general.

Wherein, obvious said machine casing is provided with the multiple hole for making interior gas pass through and the hole etc. for making various pipe arrangement pass through.

At this, liquid-the gas-heat exchanger 31 of liquid-gas-heat exchanger 61b with 71b and embodiment one, 41 roughly the same, be connected to each other by pipe arrangement 51, and the liquid (water etc.) in pipe arrangement 51 by circulating pump 53 at liquid-gas-heat exchanger 61b, 71b and pipe arrangement 51 Inner eycle.And liquid-gas-heat exchanger 61b, 71b can adopt and above-mentioned liquid-gas-heat exchanger 31,41 identical structures, owing to being that therefore existing structure explains no longer especially.

In liquid-gas-heat exchanger 61b, above-mentioned interior gas (heating installation) while having aforesaid liquid (water etc.) to pass through, is also had to pass through.Accordingly, perform the heat exchange of liquid (water etc.) and heating installation in liquid-gas-heat exchanger 61b, heating installation is cooled (heat of heating installation is transferred to liquid) substantially, thus the temperature step-down of heating installation.But this will see the temperature of outer gas and heating installation and determine, can not ensure that the temperature of heating installation is bound to decline.But, during the temperature height of gas outside, can consider by stopping circulating pump 53 grade and tackle.

And, for evaporimeter 61a and condenser 71a, be provided with refrigerant pipe 52, expansion valve 54, compressor 55.These each component parts itself is roughly the same with each component parts of general air conditioner 10.That is, in general air conditioner 10, be equipped with above-mentioned evaporimeter 12a and fan 12b in air conditioner unit 12, evaporimeter 61a is the component parts suitable with evaporimeter 12a.And as mentioned above, refrigerator 11 is provided with not shown compressor, condenser, and the parts suitable with these are above-mentioned compressor 55, condenser 71a.And expansion valve 54 is the component parts suitable with expansion valve 13.

As shown in the figure, evaporimeter 61a, condenser 71a, expansion valve 54 and compressor 55 are connected on refrigerant pipe 52.Cold-producing medium is circulated in evaporimeter 61a, condenser 71a, expansion valve 54 and compressor 55 by refrigerant pipe 52.That is, cold-producing medium circulates with the general compression freeze cycle (steam compression type freeze cycle etc.) of so-called " evaporimeter 61a → compressor 55 → condenser 71a → expansion valve 54 → evaporimeter ".Heat around absorbing when cold-producing medium evaporates in evaporimeter 61a is to cool ambient air.The heat absorbed is discharged into outer gas etc. at condenser 71a.The function of expansion valve 54 and compressor 55 is as in the past, no longer illustrates.

Wherein, as shown in the figure, expansion valve 54 is arranged in interior gas unit 60, but also can be arranged within outer gas unit 70.Compressor 55 is arranged in outer gas unit 70, but also can be arranged in interior gas unit 60.That is, expansion valve 54 can be had to be arranged in interior gas unit 60, and compressor 55 is arranged on the structure in outer gas unit 70; Expansion valve 54 is arranged in outer gas unit 70, and compressor 55 is arranged on the structure in interior gas unit 60; Both expansion valve 54 and compressor 55 are arranged on the structure in interior gas unit 60; Both expansion valve 54 and compressor 55 are arranged on the structure in outer gas unit 70.

And, although circulating pump 53 is arranged in interior gas unit 60 in illustrated example, also can be arranged in outer gas unit 70.

Wherein, above-mentioned liquid-gas-heat exchanger 61b, liquid-gas-heat exchanger 71b is the heat exchanger of the heat exchange performed between liquids and gases, but is not limited to this example.The heat exchanger (being called airair heat exchanger) that also can arrange the heat exchange performed between gas and gas replaces this liquid-gas-heat exchanger.Certainly, now replace liquid and use some gas.

At this, if be referred to as " fluid " by this liquids and gases, then above-mentioned liquid-gas-heat exchanger and airair heat exchanger can be referred to as liquid-gas heat exchanger or fluid-fluid heat exchanger.Now, can be described as in pipe arrangement 51, having some " fluid " to flow.That is, can be described as making arbitrary " fluid " by pipe arrangement 51 circulation in two heat exchangers (be liquid-gas-heat exchanger 61b and liquid-gas-heat exchanger 71b in illustrated example, but as mentioned above, be not limited to this example).This is also roughly the same for other structures described later.Namely, for the component parts of liquid described later-gas-heat exchanger 81b, 91c and pipe arrangement 96, liquid-gas-heat exchanger 111b, 121c and pipe arrangement 126, liquid-gas-heat exchanger 111b, 171c and pipe arrangement 162 etc., also liquid-gas-heat exchanger can be replaced into airair heat exchanger etc., also can be described as some " fluid " is circulated.

Above, the various structures for one-piece type outer gas refrigeration system 50 are indirectly illustrated.

Below, with reference to Fig. 3, the action for the one-piece type outer gas refrigeration system 50 indirectly based on said structure is described.

That is, when the interior gas (heating installation) of above-mentioned ceiling inner space flows in interior gas unit 60 via interior air flow inlet 62, the first heat exchange that performed between this heating installation and liquid (water etc.) by liquid-gas-heat exchanger 61b of this heating installation, makes the temperature of heating installation decline.The temperature of heating installation drops to the temperature which kind of degree then depends on outer temperature degree (temperature of liquid) and heating installation.

The above-mentioned heating installation that temperature declines is then by evaporimeter 61a.Accordingly, the heating installation that temperature declines is cooled in evaporimeter 61a, and temperature declines further, thus becomes cold air.This cold air is controlled as and becomes predetermined temperature (design temperature).For this reason, obviously there is not shown (probably illustrating in Fig. 3) controller 74.This controller 74 for controlling whole one-piece type outer gas refrigeration system 50 indirectly, such as, performs the various control such as the revolution control of each fan or the control of circulating pump 53, no longer illustrates at this.Wherein, controller 74 possesses the storage devices such as arithmetic unit or memory such as CPU, by performing the program being pre-stored within memory etc., and by inputting the variable by not shown various sensors at any time, perform the control of one-piece type outer gas refrigeration system indirectly.

And, in the casing that this controller 74 can be arranged on interior gas unit or in the casing of outer gas unit, also can be arranged on (vicinity etc. of unit) outside these unit.Wherein, in Fig. 3, although the various holding wires etc. that not diagram is not relevant to controller 74, be actually existence, this controller 74 controls the various structures of above-mentioned one-piece type indirect outer gas refrigeration system 50 grade by holding wire.Such as, be provided with not shown temperature sensor near the blowing mouth of pressure fan 61c, controller 74 obtains the metering temperature based on this temperature sensor by not shown holding wire.And controller 74 controls each structure relevant to above-mentioned general compression freeze cycle by not shown holding wire, reaches design temperature to make this metering temperature.

Wherein, as has been described, in this example, the upstream side of the air-flow of heating installation is provided with liquid-gas-heat exchanger 61b, and downstream is provided with evaporimeter 61a.

The cold air (by pressure fan 61c) generated at above-mentioned evaporimeter 61a is discharged from interior gas outlet 63.At this, as shown in Figure 2, interior gas outlet 63 is configured to be connected with floor lower side space.Wherein, for this reason, one-piece type outer gas refrigeration system 50 is different from the indirect outer gas refrigeration machine 20 of above-mentioned Fig. 1 indirectly, as shown in Figure 2, is set to a part and buries underground on the downside of floor.Accordingly, the cold air of discharging from interior gas outlet 63 flows into floor lower side space, and flows into Servers installed space via floor lower side space, thus cooling radiator body 101.Cold air becomes heating installation by cooling radiator body 101, and this heating installation flows into ceiling inner space, and again flows in interior gas unit 60 from above-mentioned interior air flow inlet 62.

In addition, about outer gas unit 70, flowed into the heat exchange of outer gas first by performing between this outer gas and liquid (water etc.) in liquid-gas-heat exchanger 71b in outer gas unit 70 by outer air flow inlet 72.By carrying out heat exchange with heating installation in above-mentioned liquid-gas-heat exchanger 61b, temperature rises this liquid (water etc.).Heat exchange between the liquid (water etc.) risen by so temperature and outer gas, makes the temperature of liquid (water etc.) decline.The liquid (water etc.) that temperature declines is provided to liquid-gas-heat exchanger 61b side again by circulating pump 53 and pipe arrangement 51 etc.

In addition, by the heat exchange with the aforesaid liquid (water etc.) when passing through in liquid-gas-heat exchanger 71b, the temperature of outer gas rises.Temperature this outer gas through rising then by condenser 71a, thus carries out heat release and temperature rises further as described above at condenser 71a, is discharged afterwards from outer gas outlet 73.

According to the one-piece type outer gas refrigeration system 50 indirectly as above illustrated, mainly following effect can be obtained.

(a) densification

In the past with in embodiment one, be provided with general air conditioner and indirect these two equipment of outer gas refrigeration machine, by by these two equipment integrations, miniaturization can be sought, thus can installation space be reduced, such as, when narrow in Machine Room etc., also become easy setting (or the equipment that in the past cannot arrange because of narrow also becomes and can arrange).

B () is arranged on wall without air channel, basis and reduces construction cost

This effect too, there is no need to arrange air channel as in the past in above-described embodiment one.After interior gas unit and outer gas unit are produced in advance in such as factory etc., during construction by means of only by these cellular installations to wall, therefore, it is possible to reduce the time needed for construction, thus can construction cost be reduced.

(c) densification based on laminate and the raising of manufacturability

In the past with in embodiment first-class, such as, about the structure in building, evaporimeter, liquid-gas-heat exchanger, fan etc. separately exist (certainly, manufacturing also is carry out individually).On the other hand, in embodiment two, by being formed the laminate of evaporimeter, liquid-gas-heat exchanger, fan lamination and integration, thus miniaturization can be sought.And, manufacture no longer separately but concentrate manufacture, therefore manufacturing and become easy.Especially, as shown in Figures 2 and 3, arrange as shape is roughly the same with size, therefore can expect the further rising of manufacturability.And, can also expect be convenient to carrying and arrange easy effect.

D () is based on the reduction of the unitized air-supply power of fan (air-supply electric power) and cost degradation

In the structure of embodiment two, and compared the quantity that can reduce fan with embodiment one in the past, thus the reduction of power (air-supply electric power) of can seeking to blow and low price.Such as, in the structure of the embodiment one shown in Fig. 1, fan comprises fan 11a, fan 12b, fan 32, these four fans of fan 42.In contrast, in the structure of the embodiment two shown in Fig. 2, Fig. 3, only comprise fan 71c(61c), these two fans of 71c.That is, the quantity of fan can be reduced half.Accordingly, such as the buying expenses of fan can be reduced half.And running fan needs electric power, but compared to the situation of four fans, the electric power of two fans needs less.

Below, the air-conditioning system for embodiment three is described.

The air-conditioning system of embodiment three is used to solve above-mentioned main problem.That is, even if also outer gas can be used in the air-conditioning system of the refrigeration of the interior space under providing the high state of the temperature of gas outside.

Fig. 5 A, Fig. 5 B are the pie graph of the air-conditioning system (its two) of embodiment three.

Fig. 6 is the figure of the action model of the air-conditioning system that embodiment three is shown etc.

Wherein, the air-conditioning system of embodiment three is also the air-conditioning system outer gas being used in the refrigeration of the interior space as above-mentioned outer gas refrigeration system indirectly etc., therefore also can be called " air-conditioning system utilizing outer gas ".

Below, be first described with reference to Fig. 4.

The air-conditioning system (one) of illustrated embodiment three such as with above-described embodiment one, two identical, by with wall 1 for boundary and the outer gas unit 80 that is arranged on outside building be arranged on gas unit 90 in inside building and formed.Such as, but being not limited thereto example, also can be the such as structure shown in Figure 10 below.

In the diagram, first outer gas unit 80 has laminate 81, and is provided with a part for the pipe arrangement 96 that second refrigerant is circulated.As second refrigerant, the concrete examples such as cooling fluid or freon such as " water " can be enumerated.Laminate 81 possesses as liquid-gas-heat exchanger 81b, pressure fan (fan) 81a etc. for making second refrigerant and outer gas carry out an example of the component parts of heat exchange, and these parts as shown in the figure ground storey amass and are integrally constituted.Wherein, the shape of such laminate and structure and manufacture method etc. are illustrated about laminate 61,71 in embodiment two, in this description will be omitted.

Wherein, liquid-gas-heat exchanger 81b and pressure fan (fan) 81a there is no need to be formed as laminate.Wherein, although illustrate briefly in Fig. 4, in fact identical with above-mentioned outer gas unit 70 etc., the casing of outer gas unit 80 is provided with and above-mentioned outer air flow inlet 72, hole that outer gas outlet 73 is suitable.

And, the setting place of outer gas unit 80 and method to set up (being also included in the manufacture of factory etc.) also can with above-mentioned outer gas unit 40,70 roughly the same, but be not limited thereto example.This is also roughly the same for illustrated interior gas unit 90.That is, interior gas unit 90 is also provided with and above-mentioned interior air flow inlet 62, not shown hole that interior gas outlet 63 is suitable on its casing.And the setting place of interior gas unit 90 also can be roughly the same with above-mentioned interior gas unit 30,60 etc. with method to set up (being also included in the manufacture of factory etc.), but be not limited thereto example.

Interior gas unit 90 possesses laminate 91, also there is a part for the pipe arrangement 96 that second refrigerant (cooling fluid such as such as " water ") is circulated, make the first cold-producing medium (such as, freon etc.) be whole in the refrigerant pipe 95(figure that circulates, but can be a part), the pump 94 be arranged on the pipeline of pipe arrangement 96, be arranged on compressor 92 on the pipeline of refrigerant pipe 95 and expansion valve 93.But this is only an example, is not limited thereto example, such as, any one or two in pump 94, compressor 92, expansion valve 93 or all can be arranged on the outside (but inside building) of outer gas unit 80 side or interior gas unit 90.When any one having at least in compressor 92 and expansion valve 93 is arranged at outer gas unit 80 side, a part for refrigerant pipe 95 also can be arranged on outer gas unit 80 side.

The above-mentioned laminate 91 of interior gas unit 90 possesses pressure fan (fan) 91a, condenser 91b, as liquid-gas-heat exchanger 91c, the evaporimeter 91d for making second refrigerant and interior gas carry out an example of the component parts of heat exchange, these parts as shown in the figure ground storey amass and are integrally constituted.Wherein, not must by pressure fan (fan) 91a, condenser 91b, liquid-gas-heat exchanger 91c, the whole lamination of evaporimeter 91d.Such as, pressure fan (fan) 91a can be arranged separately.Or these structures also can be provided separately.But, as illustrated in embodiment two, can lot of advantages be brought as during laminate.

At this, and whether form laminate and have nothing to do, the position relationship of the condenser 91b in interior gas unit 90, liquid-gas-heat exchanger 91c, evaporimeter 91d is defined as follows.

That is, from the upstream side of the air-flow by the air (interior gas) in interior gas unit 90, the order forming condenser 91b → liquid-gas-heat exchanger 91c → evaporimeter 91d is configured to successively.That is, the most upstream being configured to the air-flow of air (interior gas) is condenser 91b, then for liquid-gas-heat exchanger 91c, most downstream are evaporimeter 91d.Therefore, for the air-flow of the air (interior gas) represented with dash-dot arrows in figure, such as shown in the figure, the order forming condenser 91b → liquid-gas-heat exchanger 91c → evaporimeter 91d is arranged as from the left side figure.

Wherein, to this, as shown in Figure 8, when the air draught formed from pressure fan (fan) 91a becomes contrary, as shown in the laminate 91 ' of Fig. 8, from figure, left side is arranged as the order forming evaporimeter 91d → liquid-gas-heat exchanger 91c → condenser 91b.That is, the same with Fig. 4, from the upstream side of the air-flow by the air (interior gas) in interior gas unit 90, be arranged as the order forming condenser 91b → liquid-gas-heat exchanger 91c → evaporimeter 91d successively.Wherein, change (as shown in Figure 8) even if arrange, the sequence of flow of the first cold-producing medium also can not change.That is, the first cold-producing medium circulates with the order of " evaporimeter 91d → compressor 92 → condenser 91b → expansion valve 93 → evaporimeter 91d ".

Wherein, under the environment as shown in Figure 14, Fig. 1, Fig. 2, be preferably the air-flow forming the air identical with the interior gas unit 60 shown in above-mentioned Fig. 2, Fig. 3.That is, the air-flow (certainly, now forming the structure shown in Fig. 8) that Fig. 4 is preferably the air formed as shown in Figure 8 is compared.Its reason is set forth in embodiment two.

That is, such as in fig. 2, can consider to arrange above-mentioned outer gas unit 80, interior gas unit 90 to replace above-mentioned outer gas unit 70, interior gas unit 60.Now, in Fig. 4, the hole (not shown) that the cold air produced by evaporimeter 91d becomes on the upside of the casing of interior gas unit 90 is discharged.But, as shown in Figure 2, cold air send destination be downside floor lower side space.For this reason, as shown in Figure 8, the cold air being preferably configured to be produced by evaporimeter 91d is discharged by the hole (not shown) of the downside of the casing of interior gas unit 90.Wherein, reason and the inflow of the return air (heating installation) from ceiling inner space also have relevant part (with illustrate identical, this omit).

Turn back to the explanation of Fig. 4.

As shown in the figure, evaporimeter 91d, condenser 91b, expansion valve 93 and compressor 92 are connected on refrigerant pipe 95.Cold-producing medium is circulated in evaporimeter 91d, condenser 91b, expansion valve 93 and compressor 92 by refrigerant pipe 95.That is, the first cold-producing medium circulates with the general compression freeze cycle (steam compression type freeze cycle etc.) of so-called " evaporimeter 91d → compressor 92 → condenser 91b → expansion valve 93 → evaporimeter 91d ".As in the past, the heat around the first cold-producing medium absorbs when evaporimeter 91d evaporates is to cool ambient air (interior gas).Around the heat absorbed is discharged in condenser 91b.The function of expansion valve 93 and compressor 92 is as in the past, no longer illustrates at this.

At this, as shown in Figure 14, Fig. 1, Fig. 2, Fig. 3, usual condenser is arranged on outside (outside building) and externally gas heat release.In addition, as shown in Figure 4, etc., in embodiment three, in indoor, (such as, within interior gas unit 90, but being not limited to this example) is provided with condenser.This is one of feature of embodiment three, describes in detail below.

For the interior gas of the return air (heating installation) in gas unit 90 in flowing into as space (its ceiling inner space) indoor, as mentioned above, first by condenser 91b, then by liquid-gas-heat exchanger 91c, finally by evaporimeter 91d.Return air is by during condenser 91b, according to being derived from the heat release of condenser 91b, temperature rises, then by during liquid-gas-heat exchanger 91c according to carrying out after heat exchange and temperature decline with above-mentioned second refrigerant (water etc.), be cooled according to by evaporimeter 91d, become cold air thus.This cold air is such as supplied among the room server etc. such as cooling object space by floor lower side space etc.

At this, above-mentioned liquid-gas-heat exchanger 81b is roughly the same with the liquid in embodiment two-gas-heat exchanger 61b, 71b with liquid-gas-heat exchanger 91c, mutually be connected by pipe arrangement 96, and the second refrigerant (water etc.) in pipe arrangement 96 according to pump 94 in liquid-gas-heat exchanger 81b, 91c and pipe arrangement 96 inner loop.And liquid-gas-heat exchanger 81b, 91c also can adopt the structure roughly the same with above-mentioned liquid-gas-heat exchanger 31,41 or liquid-gas-heat exchanger 61b, 71b etc., no longer illustrates at this.

While the inside of above-mentioned second refrigerant (water etc.) by liquid-gas-heat exchanger 91c, above-mentioned interior gas (heating installation) is also by the inside of liquid-gas-heat exchanger 91c.Accordingly, second refrigerant (water etc.) and heating installation carry out heat exchange in liquid-gas-heat exchanger 91c, thus on substrate, heating installation is cooled the temperature step-down of (transfer of heat of heating installation is to liquid), heating installation.But, in the past, needed the temperature depending on outer gas and interior gas, can not ensure that the temperature of heating installation can decline.

But among the structure of the embodiment three shown in Fig. 4 etc., owing to there is the heat release according to condenser 91b at the leading portion (upstream side) of liquid-gas-heat exchanger 91c, therefore, the temperature of gas (heating installation) rises.Such as, even if be 30 DEG C from the temperature of the return air (heating installation) of the interior space, outer temperature degree is 35 DEG C, by when the temperature of gas reaches 45 DEG C in after condenser 91b, interior temperature degree can in liquid-gas-heat exchanger 91c step-down (such as, 45 DEG C → 36 DEG C etc.).

That is, even if under the environment of refrigeration (indirectly outer gas refrigeration) the function existing defects of the outer gas of utilization in the past, also can function be played.And because the temperature difference of interior gas and outer gas becomes large, therefore, the cooling effectiveness of gas uprises.

Such as, at this, as shown in this example, even if under the environment that temperature degree is high outside, in fact also can seek to cool interior gas by outer gas, but 36 DEG C higher than temperature degree (30 DEG C) in original.But, for the cooling of the first cold-producing medium in condenser 91b, used the above-mentioned outer gas of 35 DEG C in the past, but in this example, used the interior gas of above-mentioned 30 DEG C.That is, outside under the situation of temperature degree higher than return air (interior gas) temperature, than structure in the past, the cooling effect of the first cold-producing medium in the condenser 91b of the structure of the embodiment three shown in Fig. 4 etc. is higher.

Accordingly, as shown in simulation below, under the situation that so outer temperature degree is high, power consumption diminishes (energy-saving effect uprises) than ever mutually.This is described in detail later.

Wherein, when the structure of Fig. 4 and Fig. 8 described later and the structure such as shown in Fig. 3 compare, following advantage can be brought.

Namely, in the structure of Fig. 4, Fig. 8, by side disposed in the interior for condenser (interior gas unit), therefore, it is possible to the through hole obtaining advantage and the wall 1 with the part (it is short that refrigerant pipe 52 compared by pipe arrangement 96) that pipe arrangement process shortens reduces advantages such as (' 4 ' → ' 2 ').And the structure of Fig. 4, Fig. 8, compared with the structure of Fig. 5 A described later, Fig. 5 B, Fig. 9, Figure 11, Figure 12, can bring the advantages such as the through hole (' 5 ' → ' 2 ') reducing wall 1.

Below, with reference to Fig. 5 A, Fig. 5 B, the configuration example of the air-conditioning system (its two) of embodiment three is described.Wherein, Fig. 5 A is first case, and Fig. 5 B is second case.

Structure shown in Fig. 5 A, Fig. 5 B is based on the structure of above-mentioned Fig. 4, gas cell side also arranges condenser outside, thus by perform by illustrated triple valve 112(switching device shifter) switching control, the action roughly the same with above-described embodiment two (Fig. 3) can also be performed.

Wherein, the cooling object space of the air-conditioning system (one) (its two) according to Fig. 4, Fig. 5 A, Fig. 5 B is such as set as identical with the example shown in Fig. 1 with Fig. 2.That is, the interior space of cooling object is become such as being provided with multiple room server etc. having carried the server rack 102 of the radiator bodies 101 such as server unit (computer installation).And, send cold air to floor lower side space, and via floor lower side space to Servers installed space supply cold air, cool each radiator body 101 by this cold air.Accordingly, cold air becomes heating installation, and this heating installation flows into ceiling inner space.Flow into from the return air (heating installation) of this ceiling inner space in the interior gas unit 120 of the interior gas unit 90 of Fig. 4 or Fig. 5 A, Fig. 5 B, thus in these, produce above-mentioned cold air within gas unit and be sent to floor lower side space.

Below, first Fig. 5 A is described.

The air-conditioning system (its two) of the embodiment three shown in Fig. 5 A is made up of interior gas unit 120 and outer gas unit 110.About the position relationship that the casing of gas unit 120 in these and outer gas unit 110, manufacture/method to set up, inside and outside gas unit are mutual, roughly can with above-mentioned in gas unit 60 identical with outer gas unit 70, no longer illustrate at this.

Below, first internally gas unit 120 is described.

Interior gas unit 120 has laminate 121 etc.This laminate 121 has pressure fan (fan) 121a, condenser 121b, liquid-gas-heat exchanger 121c, evaporimeter 121d etc., and these parts are stacked as shown in figure and be integrally constituted.

At this, above-mentioned laminate 121 can be identical with the laminate 91 shown in above-mentioned Fig. 4.Therefore, required condition is identical with above-mentioned laminate 91.That is, from the upstream side of the air-flow by the air (interior gas) within interior gas unit 120, condenser 121b → liquid-gas-heat exchanger 121c → evaporimeter 121d is arranged as successively.

Wherein, as already described, the structure so evaporimeter, liquid-gas-heat exchanger, condenser, pressure fan (fan) being integrally constituted type as laminate has lot of advantages, but is not limited to this configuration example.Such as, can only by any plural inscape in these four inscapes as laminate, four inscapes also can all be arranged respectively (but, under this situation, as illustrated in the diagram, from the upstream side of the air-flow of interior gas, be arranged as condenser → liquid-gas-heat exchanger → evaporimeter successively).

And, although omit in Fig. 4, identically with embodiment two, in embodiment three gas unit 120 casing on also offer the hole of illustrated interior air flow inlet 128, interior gas outlet 127 etc.In this example, pressure fan (fan) 121a forms the air-flow of the air in the dash-dot arrows direction in figure.Namely, pressure fan (fan) 121a produces the air-flow of following air (in figure, represent with dotted arrow), namely, the heating installation of above-mentioned ceiling inner space is made to flow within this interior gas unit 120 by interior air flow inlet 128, and after becoming cold air by (especially laminate 121) in interior gas unit 120, discharge this cold air by interior gas outlet 127.Wherein, the cold air of discharging from interior gas outlet 127 flows into room server etc. via floor lower side space.

Wherein, identically with Fig. 2 with Fig. 3, also can be formed the illustrated hole as interior gas outlet 127 as interior air flow inlet by pressure fan (fan) 121a, using the air-flow (in figure, with air-flow dash-dot arrows shown in contrary air-flow) of the illustrated hole as interior air flow inlet 128 as the air of interior gas outlet.This configuration example has been shown in Fig. 9.As shown in Figure 9, the upside of casing is provided with interior air flow inlet 127 ', and the downside of casing is provided with interior gas outlet 128 '.

And in this case, as shown in Figure 9, the structure of laminate 121 changes.That is, as mentioned above, arranged cold condenser → liquid-gas-heat exchanger → evaporimeter successively by the upstream side of the air-flow from the air (interior gas) in interior gas unit, becomes the form that the condenser 121b that makes Fig. 5 A and evaporimeter 121d exchanges.That is, the structure of laminate 121 ' is as shown in Figure 9 become.

As shown in the figure, laminate 121 ' sets gradually condenser 121b, liquid-gas-heat exchanger 121c, evaporimeter 121d from the right side figure.The air-flow of the interior gas formed by pressure fan (fan) 121a, as shown in the dash-dot arrows in Fig. 9, is discharged from interior gas outlet 128 ' after interior air flow inlet 127 ' flows in casing.Accordingly, arranged cold condenser 121b → liquid-gas-heat exchanger 121c → evaporimeter 121d successively from the upstream side of the air-flow of this air.

Turn back to the explanation of Fig. 5 A.

Outer gas unit 110 possesses laminate 111.

Laminate 111 has pressure fan (fan) 111a, liquid-gas-heat exchanger 111b, condenser 111c etc., these parts lamination and being integrally constituted as shown in figure.Wherein, these three inscapes there is no need all to form laminate.Wherein, illustrate although simplify in the diagram, the above-mentioned outer gas unit 70 of outer gas unit 110(is also identical) its casing offers hole as illustrated outer air flow inlet 114, outer gas outlet 115.Pressure fan (fan) 111a produces the air-flow of following air (in figure, represent with dotted arrow), that is, make the air outside room (outer gas) flow in outer gas unit 110 from outer air flow inlet 114, and by after this laminate 111, discharge from outer gas outlet 115.

Wherein, laminate 111 itself can be identical with above-mentioned laminate 71.And identically with laminate 71, above-mentioned laminate 111 is configured to arrange above-mentioned liquid-gas-heat exchanger 111b at the upstream side of the air-flow (representing with dotted arrow in figure) of air as above, arranges above-mentioned condenser 111c in downstream.This is also the same in the situation not forming laminate.

And expansion valve 123, compressor 113 are separately positioned on the wherein side of outer gas unit 110 and interior gas unit 120.In illustrated example, expansion valve 123 is arranged within interior gas unit 120, and compressor 113 is arranged within outer gas unit 110, but is not limited thereto example (variation illustrates in embodiment two, therefore omits at this).

And as shown in the figure, evaporimeter 121d, expansion valve 123 and compressor 113 are connected on refrigerant pipe 125.Further, refrigerant pipe 125 is provided with the triple valve 112 of the example as switching device shifter on its pipeline, has illustrated refrigerant pipe 125a and refrigerant pipe 125b from triple valve 112 to destination branch.Refrigerant pipe 125a is connected to the condenser 121b of above-mentioned laminate 121.Refrigerant pipe 125b is connected to the condenser 111c of above-mentioned laminate 111, and is formed in this destination and refrigerant pipe 125a and collaborate.Accordingly, by the switching of the opening and closing valve of triple valve 112, make certain side in the first refrigerant flow direction refrigerant pipe 125a and refrigerant pipe 125b.That is, in other words, certain side in the first refrigerant flow direction condenser 111c and condenser 121b can be made.

So, the first cold-producing medium comprises refrigerant pipe 125a or refrigerant pipe 125b via refrigerant pipe 125() circulate to evaporimeter 121d, condenser 111c or condenser 121b, expansion valve 123, compressor 113.That is, the first cold-producing medium circulates with the compression freeze cycle (steam compression type freeze cycle etc.) of " evaporimeter 121d → compressor 113 → condenser 111c or condenser 121b → expansion valve 123 → evaporimeter 121d ".

As in the past, the heat around the first cold-producing medium absorbs when evaporimeter 121d evaporates, to cool ambient air.The heat absorbed discharges towards periphery in condenser 111c or condenser 121b.The function of expansion valve 123 and compressor 113 is as in the past, therefore no longer illustrates.

The cold-producing medium undertaken by above-mentioned triple valve 112 is switched control and determines according to such as outer temperature degree or interior temperature degree.Or, also can determine according to power consumption.

That is, in the structure of Fig. 4, under the situation (such as, 30 DEG C with first-class) that temperature degree is high especially outside, than air-conditioning system in the past, significant effect can be brought, and may minus effect be brought on the contrary when temperature degree is low outside.

Accordingly, such as outside temperature degree reach to more than fixed temperature time, or " in outer temperature degree > temperature degree " and the temperature difference of outer temperature degree and interior temperature degree reaches more than set-point time, the valve opening and closing that such as illustrated controller 130 performs above-mentioned triple valve 112 switches control, makes the first cold-producing medium flow into refrigerant pipe 125a(condenser 121b).Action is in this case roughly the same with Fig. 4 with effect.That is, flow into refrigerant pipe 125a(condenser 121b when becoming the first cold-producing medium) state time, in condenser 121b, perform the heat release of inside gas, thus the function of laminate 121 is roughly the same with above-mentioned laminate 91.(wherein, interior temperature degree is such as the temperature of the return air from above-mentioned ceiling inner space).

That is, after space (this ceiling inner space) first passes through condenser 121b by interior air flow inlet 128 return air (heating installation) flowed within interior gas unit 120 indoor, by liquid-gas-heat exchanger 121c, finally by evaporimeter 121d.When passing through condenser 121b, according to the heat release of condenser 121b, temperature rises return air, and then by during liquid-gas-heat exchanger 121c according to carrying out after heat exchange and temperature decline with above-mentioned second refrigerant (water etc.), be cooled finally by evaporimeter 121d, become cold air thus.

Wherein, the electric power consumption of the front and back that the valve transfer performing above-mentioned triple valve 112 controls is measured, if electric power consumption reduces, maintain former state, if and electric power consumption increases, then the valve transfer that again can perform above-mentioned triple valve 112 controls and turns back to the state of original state (the first cold-producing medium flows into refrigerant pipe 125b(condenser 111c)).Or, after carrying out above-mentioned switching, such as, when temperature degree is less than to fixed temperature outside, or when " outer temperature degree≤interior temperature degree ", or " although outer temperature degree > " interior temperature degree " but the temperature difference of outer temperature degree and interior temperature degree is less than set-point when, the valve transfer that again can perform above-mentioned triple valve 112 controls and turns back to the state of original state (the first cold-producing medium flows into refrigerant pipe 125b(condenser 111c)).

Such as, temperature degree is less than under the situations such as fixed temperature outside, and the valve transfer performing above-mentioned triple valve 112 controls and makes the first cold-producing medium flow into refrigerant pipe 125b(condenser 111c).Action under this situation can be identical with Fig. 2, Fig. 3.

Namely, space (this ceiling inner space) flows into return air (heating installation) within interior gas unit 120 without special circumstances ground by after condenser 121b by interior air flow inlet 128 indoor, by during liquid-gas-heat exchanger 121c and above-mentioned second refrigerant (water etc.) carry out after heat exchange and temperature decline, be cooled finally by evaporimeter 121d, become cold air thus.In addition, evaporimeter 121d is discharged into outer gas from the heat absorbed around among condenser 111c.Wherein, above-mentioned second refrigerant circulates in pipe arrangement 126 according to circulating pump 124.Identically with above-mentioned pipe arrangement 51, pipe arrangement 126 is connected to liquid-gas-heat exchanger 111b, 121c.

Wherein, the valve opening and closing of such triple valve 112 but changes control and is such as performed by illustrated controller 130, but no longer describes in detail at this.Wherein, controller 130 has CPU/MPU, memory etc., and by never illustrated temperature sensor input temp data etc., thus performing the control of the temperature of adjustment cold air etc., is the control device of whole air-conditioning system.Controller 130 can be arranged on arbitrary position.

Wherein, in the example of Fig. 5 A, in order to avoid flowing into the first refrigerant flow direction refrigerant pipe 125b(of refrigerant pipe 125a in contrast, in order to avoid flowing into the first refrigerant flow direction refrigerant pipe 125a of refrigerant pipe 125b), be provided with non-return valve 122a, 122b as shown in the figure.That is, first, as shown in the figure, behind illustrated junction of two streams R interflow, a refrigerant pipe 125 is again become as be branched off into two the above-mentioned refrigerant pipe 125a of refrigerant pipe 125 and refrigerant pipe 125b.In refrigerant pipe 125a, as shown in the figure, near this junction of two streams R, non-return valve 122a is provided with.In refrigerant pipe 125b too, near this junction of two streams R, non-return valve 122b is provided with.

Wherein, if when using the structure of Fig. 5 A to Fig. 4 to be described, first there is not condenser 111c, so also there is not (and, refrigerant pipe 125a is considered as refrigerant pipe 125) in triple valve 112 and refrigerant pipe 125b and non-return valve 122a, 122b.

Wherein, in contrast to this, based on the structure of Fig. 4, when the structure of Fig. 5 A is described, for the structure of Fig. 4, while first setting up condenser 111c, the above-mentioned refrigerant pipe 125b as the branched pipe formed at branched halfway by refrigerant pipe 125 is made to be connected to condenser 111c.Further, the branch point of above-mentioned refrigerant pipe 125 is provided as the triple valve 112 of an example of switching device shifter, and makes the first cold-producing medium to any side circulation in condenser 121b and condenser 111c according to this switching device shifter.And, set up above-mentioned non-return valve 122a, 122b.

Below, the configuration example shown in Fig. 5 B is described.

The structure of Fig. 5 B is roughly the same with the structure of above-mentioned Fig. 5 A, and only part is different.Therefore, Fig. 5 B is only illustrated the structure roughly the same with Fig. 5 A is then omitted the description the difference with Fig. 5 A.

In the structure of Fig. 5 B, the triple valve 112 that illustrated triple valve 112 ' instead of above-mentioned Fig. 5 A is set.The triple valve 112 of Fig. 5 A is arranged at the leading portion (inflow side) of condenser 111c.In contrast, the triple valve 112 ' of Fig. 5 B is then arranged on the back segment (outflow side) of condenser 111c.From triple valve 112 ' to destination, refrigerant pipe 125 is branched to refrigerant pipe 125a and refrigerant pipe 125b, and this point is roughly the same with Fig. 5 A.And refrigerant pipe 125b is connected to expansion valve 123, refrigerant pipe 125a is connected to condenser 121b, and this point is also roughly the same with Fig. 5 A.

In the structure of Fig. 5 A, cold-producing medium according to the valve transfer control flow check of triple valve 112 to certain side in condenser 111c and condenser 121b.In contrast, in the structure of Fig. 5 B, cold-producing medium must flow to condenser 111c, and whether makes refrigerant flow direction condenser 121b, then controlled by the valve transfer of triple valve 112 '.

The temperature of the cold-producing medium of the outlet side of compressor 113, usually above outer temperature degree, therefore can expect the decline of refrigerant temperature by making cold-producing medium must flow to condenser 11c.Further, when " in outer temperature degree > temperature degree ", controlled by the valve transfer of triple valve 112 ', make refrigerant flow direction refrigerant pipe 125a(also make refrigerant flow direction condenser 121b).Accordingly, by condenser 111c, refrigerant temperature is temporarily declined, and then at condenser 121b, refrigerant temperature can be dropped near interior temperature degree.

Wherein, outer temperature degree is identical with outer temperature meaning.

According to the structure of Fig. 5 B, because the heat exchange amount of the cold-producing medium in condenser 121b and interior gas reduces, therefore, it is possible to seek the miniaturization of condenser 121b.And, because the heat that must pass through heat exchanger 121c process reduces, therefore, it is possible to expect the lifting (such as, the minimizing of the air quantity of pressure fan 111a or the flow minimizing etc. according to the circulating refrigerant of pump 124) of efficiency.

Wherein, the structure for above-mentioned Fig. 5 B can also be described as follows.

That is, gas unit 110 also arranges condenser 111c outside, refrigerant pipe 125 is connected to this condenser 111c, and then on this branch point, arranges switching device shifter (triple valve 112 ') while the refrigerant outflow side of condenser 111c makes refrigerant pipe 125 branch.Then, switch to after the condenser 121b making the first cold-producing medium in interior gas unit 120 circulates according to this switching device shifter, first path of circulating to the expansion valve 123 and condenser 121b of the first cold-producing medium inwardly in gas unit 120 is circulated and to any one path in the second path that expansion valve 123 circulates.Control to be performed by such as controller 130 according to the switching in the path of this switching device shifter.

At this, in Fig. 6, action model and the analog result of the air-conditioning system of above-described embodiment three is shown.

First, the simulated action model shown in Fig. 6 (a) is described.

Wherein, in the following description, although correspond to the structure of Fig. 4 and be described, for Fig. 5 A, Fig. 5 B be also much the same (only identical with Fig. 4 ground action when).

In figure 6, first thick-line arrow represents the air-flow of air (interior gas).Structure (that is, interior gas the structure of process) along the air-flow of this air (interior gas) is illustrated radiator body 140, condenser 141, liquid-gas-heat exchanger 142, evaporimeter 143.

Radiator body 140 is equivalent to the above-mentioned radiator body 101(server unit etc. of the interior space of above-mentioned cooling object).Condenser 141 is equivalent to above-mentioned condenser 91b, and liquid-gas-heat exchanger 142 is equivalent to the liquid-gas-heat exchanger 91c in above-mentioned interior gas unit 90, and evaporimeter 143 is equivalent to above-mentioned evaporimeter 91d.And illustrated compressor 144 is equivalent to above-mentioned compressor 92, illustrated expansion valve 145 is equivalent to above-mentioned expansion valve 93.

The illustrated thin-line arrow coupled together between these condensers 141, evaporimeter 143, compressor 144, expansion valve 145 is represented the flow direction of the first cold-producing medium.That is, the first cold-producing medium circulates with the compression freeze cycle (steam compression type freeze cycle etc.) of " evaporimeter 143 → compressor 144 → condenser 141 → expansion valve 145 → evaporimeter 143 ".

And illustrated pump 146 is equivalent to said pump 94, illustrated liquid-gas-heat exchanger 147 is equivalent to the liquid-gas-heat exchanger 81b of above-mentioned outer gas unit 80 side.The illustrated thin-line arrow coupled together between these pumps 146, liquid-gas-heat exchanger 147, above-mentioned liquid-gas-heat exchanger 142 is represented the flowing of second refrigerant (water etc.).Accordingly, in liquid-gas-heat exchanger 142, carry out the heat exchange of interior gas and second refrigerant, in liquid-gas-heat exchanger 147, carry out the heat exchange of outer gas and second refrigerant.Accordingly, when temperature degree is low outside, realize by second refrigerant the indirect outer gas refrigerating function indirectly being cooled interior gas by outer gas.

At this, in Fig. 6 (a), an example of the interior gas in each stage showing above-mentioned circulation and the temperature of the first cold-producing medium.Wherein, this is also an example at most.And shown here is the Utopian temperature as simulation, in fact not like this.Such as, although the temperature of the first cold-producing medium can decline comparatively large in condenser 141, also can not drop to as diagram and interior gas phase with temperature (32 DEG C), but can become and compare this slightly high temperature (33 DEG C).

First, be described from evaporimeter 143.In illustrated example, interior gas is cooled and becomes the cold air of 18 DEG C in evaporimeter 143.According to this cold air, the radiator body 140 as server unit etc. is cooled, and interior gas becomes the heating installation of 32 DEG C.This heating installation of 32 DEG C is by condenser 141.

At this, the first cold-producing medium of the high temperature (66 DEG C) generated by compressor 144 flows in condenser 141, and heat release towards periphery.In condenser 141, according to the heating installation of above-mentioned 32 DEG C, the first cold-producing medium of high temperature (66 DEG C) is cooled.Accordingly, after condenser 141, the temperature of the first cold-producing medium drops to 32 DEG C, and the temperature of heating installation (interior gas) then rises to 55 DEG C.

This first cold-producing medium of 32 DEG C becomes first cold-producing medium of 10 DEG C further and flows into evaporimeter 143 in the expansion valve 145 of next stage, and evaporimeter 143 cools interior gas as described above and generates the cold air of 18 DEG C accordingly.

In addition, the heating installation becoming 55 DEG C is when by liquid-gas-heat exchanger 142, and by carrying out heat exchange with above-mentioned first cold-producing medium, temperature declines, thus becomes the heating installation of 36 DEG C.Then, this heating installation of 36 DEG C becomes the cold air of 18 DEG C as above by evaporimeter 143.

At this, as mentioned above, be compared with in the of 32 DEG C with the return air from the interior space, flow into the heating installation of evaporimeter 143 and become 36 DEG C, therefore with use indirectly outer gas refrigerating function independently temperature can rise on the contrary.

But as mentioned above, the heating installation of 55 DEG C is become 36 DEG C by outer gas refrigerating function indirectly, thus realizes refrigerating function, and temperature difference is comparatively large, and therefore the cooling effectiveness of heating installation (interior gas) is also higher.Even if this is because under the state of temperature degree very high (being such as 36 DEG C) outside, but very low compared with 55 DEG C.If by the return air of above-mentioned 32 DEG C of the heating installation of liquid-gas-heat exchanger 142, then when temperature degree is 36 DEG C outside, not only temperature cannot be reduced, there is the possibility that temperature rises on the contrary.In addition, in embodiment three, even if outer temperature degree is very high, the possibility of outer gas refrigeration generation effect is also very high indirectly.

At this, it is because be provided with condenser 141 interior gas cell side (indoor) and make interior gas by this condenser 141 that interior gas reaches 55 DEG C as described above.As shown in Figure 14 and Fig. 1 ~ Fig. 3, usual condenser side disposed in the outdoor and externally gas carry out heat release.This without any problem, can cool the first cold-producing medium by outer gas when temperature degree is low outside within the condenser fully.

But under the situation (being such as 36 DEG C) that temperature degree is very high outside, cannot cool the first cold-producing medium fully by outer gas within the condenser, also room temperature will be ensured setting value in this situation, then power consumption will increase.Be directed to this, the air-conditioning system of embodiment three, in condenser 141 as above, by comparing air cooling but the first cold-producing medium in lower above-mentioned 32 DEG C of outer temperature degree, compares the situation of outer gas, the temperature of the first cold-producing medium can be made more to decline, the minimizing of power consumption can be realized.

Analog result relevant to above-mentioned minimizing power consumption shown in Fig. 6 (b).

In curve shown in Fig. 6 (b), transverse axis is outer temperature degree (DEG C), and the longitudinal axis is power consumption (kW).

First, be the power consumption (being mainly the power consumption of fan and pump 146) of outer gas refrigerating function indirectly by the data that triangle (△) represents in curve, with the power consumption (being mainly the power consumption of compressor 144) that the data that quadrangle (◇) represents are freeze cycle, circular (zero) represents these aggregate value (whole power consumption).And, each mark (circle zero of three-pointed hollow star △, quadrilateral shape ◇, hollow) of hollow represents air-conditioning system in the past, solid each mark (black triangle ▲, filled quadrilateral ◆, solid circles ●) for corresponding to the data of the air-conditioning system of embodiment three.Wherein, air-conditioning system is in the past such as the air-conditioning system of above-mentioned Figure 14, but is not limited thereto, and such as, also can be the air-conditioning system of above-described embodiment one or embodiment two.

As shown in the figure, when temperature degree is lower outside, be no matter air-conditioning system in the past or this air-conditioning system (air-conditioning system of embodiment three), overall power consumption has almost no change.

But, when outer temperature degree (degree such as more than 30 DEG C becomes a benchmark) to a certain level or higher, because gas refrigeration indirect outer in air-conditioning system in the past cannot substantially play a role, therefore fan and pump 146 is stopped, so power consumption (three-pointed hollow star △) relevant to outer gas refrigerating function indirectly as shown in figure becomes 0.In addition, in this air-conditioning system, as mentioned above, because interior temperature degree becomes very high (55 DEG C etc.), even if therefore outer temperature degree is more than 30 DEG C, and then more than 35 DEG C, outer gas refrigeration also can produce effect indirectly, therefore without the need to stopping fan and pump 146, therefore there is certain power consumption (black triangle ▲) as shown in figure.

In air-conditioning system in the past, the power consumption (three-pointed hollow star △) of above-mentioned outer gas refrigeration indirectly becomes in the region (assuming that being called high-temperature area) of the outer temperature degree of 0, and as shown in the figure, along with the rising of temperature, overall power consumption increases sharply.Wherein, in this high-temperature area, " the power consumption (quadrilateral shape ◇) of overall power consumption (hollow circular zero)=freeze cycle in air-conditioning system in the past.That is, in above-mentioned high-temperature area, because the power consumption (quadrilateral shape ◇) of freeze cycle increases sharply, thus overall power consumption also increases sharply.

In addition, in this air-conditioning system, even if at above-mentioned high-temperature area, the power consumption (filled quadrilateral ◆) of freeze cycle so far roughly all in the same manner, increases lentamente corresponding to the rising of outer temperature degree, but can not increase sharply.Therefore, as shown in the figure, in above-mentioned high-temperature area, outer temperature degree becomes higher, and the power consumption gap of the entirety of air-conditioning system in the past and this air-conditioning system more becomes large.

So, outside under the high environment to a certain extent of temperature degree, the air-conditioning system of embodiment three is than air-conditioning system in the past, and power consumption diminishes, and outer temperature degree is higher, and this energy-saving effect becomes more obvious.

But, under the environment that temperature degree is low outside, for energy-saving effect, the air-conditioning system of embodiment three may bring minus effect on the contrary, therefore by being configured to, shown in Fig. 5 A etc., be arranged to can switch in fact the air-conditioning system (one) of the embodiment three shown in Fig. 4 and air-conditioning system in the past in the arbitrary moment.But, this also with environmental correclation is set, such as, when setting place belongs to the torrid zone, even if the structure of Fig. 4 also can not bring any problem.

Wherein, larger (refrigerant temperature is low for the cooling degree of the first cold-producing medium; Degree of subcooling is large), then refrigerating effect and refrigerating capacity become larger.These are as such in being recorded in such as bibliography (Japanese Unexamined Patent Publication 2010-7975 publication, especially its paragraph 0009,0038 etc.), belong to known item.In the above referred-to references, disclose following content, such as, when the degree of subcooling of the first cold-producing medium diminishes, refrigerating effect (the specific enthalpy variable quantity of the cold-producing medium in evaporimeter) diminishes, and the refrigerating capacity therefore under the occasion that circulating mass of refrigerant is identical diminishes.

In addition, the temperature as the room server of cooling object space needs roughly to remain design temperature, and in the example of above-mentioned Fig. 6 (a), evaporimeter need continue the cold air generating roughly 18 DEG C.Even if in order to the cold air also generating roughly 18 DEG C when the degree of subcooling of cold-producing medium diminishes, such as need to increase circulating mass of refrigerant, for this reason, power consumption will become large.In this air-conditioning system, under the environment that outer temperature degree is high, than air-conditioning system (using outer air cooling but cold-producing medium) in the past, the degree of subcooling of the first cold-producing medium can not diminish, and therefore compared to air-conditioning system in the past, the increase of power consumption can be suppressed.So, in this air-conditioning system, even if under the environment that temperature degree is high outside, compared with air-conditioning system in the past, high energy-saving effect can be obtained.

Further, in embodiment three, when to realize shown in Fig. 4 and Fig. 5 A etc. and the cellular construction and the manufacture that illustrate, to arrange etc. time, the effect roughly the same with above-described embodiment two can be obtained.That is, as the effect of embodiment two and above-mentioned (a) densification; B () is based on without pipeline, the reduction being installed on the construction cost of wall; (c) densification based on laminate and the raising of manufacturability; D (), based on the reduction of air-supply power (air-supply electric power) of fan sharing and the effect of low cost, can obtain equally in embodiment three.

At this, reference Fig. 7 is by embodiment three and compare in the past and illustrate.

Fig. 7 (a) is for illustrating the figure of the action model of the air-conditioning system of embodiment three.Wherein, this figure is the figure roughly the same with above-mentioned Fig. 6 (a), and it omits a part and illustrates.Accordingly, give the symbol identical with Fig. 6 (a) for each structure, and omit its detailed description.

Inventionbriefly, the freeze cycle of both vapor compression freeze cycle etc. is achieved by illustrated condenser 141, evaporimeter 143, compressor 144 and expansion valve 145.Further, outer gas refrigerating function is indirectly achieved by illustrated pump 146, liquid-gas-heat exchanger 147, liquid-gas-heat exchanger 142.

As liquid-gas-heat exchanger 147 side disposed in the outdoor (outside building) of the structure that outer gas passes through, the condenser 141 of the structure passed through as interior gas, liquid-gas-heat exchanger 142, evaporimeter 143 are then side disposed in the interior (inside building).The Tibetan that arranges for structure in addition to these does not then have special restriction.

And, the action model for the air-conditioning system in the past compared with Fig. 7 (a) has been shown in Fig. 7 (c).

As shown in the figure, at least for the model example shown in Fig. 7 (a), (c), embodiment three and in the past there is structural difference hardly, only the setting position difference of condenser.Because setting position is different, therefore reindexing and be expressed as condenser 141 in Fig. 7 (a), and condenser 141 ' is expressed as in Fig. 7 (c).

As shown in Figure 7 (a), in the air-conditioning system of embodiment three, condenser 141 is arranged on by radiator body 140(server etc.) after interior gas the position of process.In addition, as shown in Fig. 7 (c), the condenser 141 ' in air-conditioning system be in the past arranged on outer gas the position of process.Wherein, although do not illustrate in detail in this figure, condenser 141 ' preferably make by liquid-gas-heat exchanger 147 after outer gas pass through.Wherein, in illustrated example, such as, because outer temperature degree is very high, therefore outer gas refrigerating function is stopped (operation such as stopping pump 146) indirectly.

Fig. 7 (b) is for corresponding to the temperature model figure of the air-conditioning system of the embodiment three of Fig. 7 (a).

Fig. 7 (d) is for corresponding to the temperature model figure of air-conditioning system in the past.

First, in Fig. 7 (b), (d), be connected to radiator body 140(server etc.) and the arrow forming a circle represents the variations in temperature etc. of interior gas.And the arrow being connected to compressor 144 and expansion valve 145 etc. represents the variations in temperature etc. of the first cold-producing medium.And, Q(Q1a etc.) refer to heat, L(Lpa etc.) refer to power (electric power consumption).

And, with dotted line and the part of giving symbol 141a represents the variations in temperature of gas and cold-producing medium in above-mentioned condenser 141 in Fig. 7 (b).Equally, in Fig. 7 (d) with dotted line and the part of giving symbol 141b represents the variations in temperature of the cold-producing medium in above-mentioned condenser 141 '.

And, with dotted line and the part of giving symbol 142a represents the variations in temperature of gas in above-mentioned liquid-gas-heat exchanger 142 in Fig. 7 (b).Equally, in Fig. 7 (d) with dotted line and the part of giving symbol 142b represents the variations in temperature (but temperature not to change like that with illustrated) of gas in above-mentioned liquid-gas-heat exchanger 142.

And, with dotted line and the part of giving symbol 143a represents the variations in temperature of gas and cold-producing medium in above-mentioned evaporimeter 143 in Fig. 7 (b).Equally, in Fig. 7 (d) with dotted line and the part of giving symbol 143b represents the variations in temperature of gas and cold-producing medium in above-mentioned evaporimeter 143.

Then, first in Fig. 7 (b), in condenser 141, carry out the exchange of the heat Q1a between interior gas and the first cold-producing medium, its result, as illustrated 141a, the temperature of interior gas rises, and the temperature of the first cold-producing medium drops to the temperature levels of illustrated reflux gas (RA).Wherein, reflux gas (RA) is from radiator body 140(server etc.) as gas in return air.And wherein, as illustrated in figure 6 (a), this is the Utopian temperature model figure through simulation, in fact not like this.Such as, although the temperature of the first cold-producing medium significantly declines, the temperature levels of reflux gas (RA) can not be dropped to as shown in figure, but the temperature a little more than this can be become.

Afterwards, interior gas carries out heat exchange indirectly by being sucked away heat Q2a(based on above-mentioned outer gas refrigerating function indirectly during liquid-gas-heat exchanger 142 with outer gas, heat is released to outside (outside building)), its result, the temperature such as illustrated 142a of interior gas is such, drops to outer gas (OA) temperature levels.

Then, further as illustrated 143a, interior gas is sucked away the heat that heat is Q3a in evaporimeter 143, and temperature is lowered by the temperature levels to illustrated air feed (SA).Wherein, air feed (SA) refers to and is supplied to radiator body 140(server etc.) interior gas (cold air).Wherein, the temperature of the cold-producing medium in evaporimeter 143 is lowered by the level of illustrated " J ".

In addition, as shown in Fig. 7 (d), in the past, at radiator body 140(server etc.) in because of heat QH temperature rise in gas not can pass through condenser 141 ', therefore temperature can not change (with reference to 141b), and due to outer gas refrigerating function stopping indirectly in the example of Fig. 7 (c), even if therefore by liquid-gas-heat exchanger 142, temperature also can not change (with reference to 142b), maintains the temperature levels of illustrated above-mentioned reflux gas (RA).Afterwards, as shown in illustrated 143b, interior gas is sucked away heat Q3b and till temperature drops to the temperature levels of illustrated air feed (S) in evaporimeter 143.

In addition, the first cold-producing medium by carrying out with outer gas the exchange heat that heat is Q1b, till temperature drops to illustrated outer gas (OA) temperature levels thus in the condenser 141 ' being arranged at outside (outside building).After this, the first cold-producing medium till by expansion valve 145, temperature drops to the temperature of illustrated " J " after, be provided in evaporimeter 143.

At this, accompanying drawing 7(b), shown in (d), the temperature entering the first cold-producing medium before expansion valve 145 is RA in Fig. 7 (b), is OA in Fig. 7 (d), and RA < OA.So in embodiment three, compared in the past, the temperature near the cold-producing medium of expansion valve 145 was low.Accordingly, as already described, the power consumption of the freeze cycle of embodiment three is less.Namely, as shown in the figure, the power (power consumption) (being mainly compressor 144 power (power consumption)) of the freeze cycle of embodiment three is defined as Lca, when the power (power consumption) (being mainly the power (power consumption) of compressor 144) of freeze cycle is in the past defined as Lcb, Lcb > Lca.Wherein, this is if the temperature of the reflux gas RA of illustrated example is lower than the situation of the temperature of outer gas OA.

But, in the example of Fig. 7, due in the past indirectly the power of outer gas refrigerating function stop, therefore its power consumption is " 0 ", in contrast, embodiment three when, the power (power consumption) of indirect outer gas refrigerating function increases Lpa.Therefore, in this example, when meeting the condition of " Lcb > Lca+Lpa ", the air-conditioning system of embodiment three is than air-conditioning system in the past, and its power consumption diminishes.

Figure 10 is the skeleton diagram of the entirety of the air-conditioning system comprising embodiment three.

The air-conditioning system of embodiment three is not limited to the above embodiments, such as, also can be considered the structure shown in Figure 10.Wherein, in Fig. 10, utilize the example shown in Fig. 4 as each inscape, use the symbol identical with Fig. 4.Wherein, as mentioned above, the example of integrated lamination is not limited to, so such as the structure shown in Figure 10 can be formed as.

In the example of Figure 10, the air-conditioning system of embodiment three is made up of illustrated heat pump 151 and heat exchanger 152.Heat pump 151 is made up of above-mentioned evaporimeter 91d, compressor 92, condenser 91b, expansion valve 93 etc., and these parts are connected by refrigerant pipe 95 and cold-producing medium is circulated with the order of " evaporimeter 91d → compressor 92 → condenser 91b → expansion valve 93 → evaporimeter 91d ".

And although do not illustrate especially, heat exchanger 152 is made up of the pipe arrangement 96 of above-mentioned liquid-gas-heat exchanger 91c, 81b and connecting fluid-gas-heat exchanger 91c, 81b.

The cold air (interior gas) sent from heat pump 151 enters into room server via floor lower side space, becomes heating installation through cooling server unit etc.This heating installation (interior gas) flows into heat pump 151 via ceiling inner space, and through condenser 91b temperature rise after inflow heat exchanger 152.Then, perform in heat exchanger 152 in gas and outer gas indirectly heat exchange and the temperature of interior gas is declined.The interior gas that temperature declines flows within heat pump 151, is cooled, becomes above-mentioned cold air, thus be sent to floor lower side space as described above by evaporimeter 91d.

Then, below embodiment four is described.

Figure 13 is the figure of the action model of the air-conditioning system that embodiment four is shown etc.

First, with reference to Figure 11, the air-conditioning system (one) of embodiment four is described.Wherein, give the symbol identical with the symbol shown in Fig. 5 B for the structure roughly the same with the structure shown in Fig. 5 B in fig. 11, and omit or simplify its description.

First, the air-conditioning system (one) of the embodiment four shown in Figure 11 is made up of outer gas unit 160 and interior gas unit 170.These outer gas unit 160 and interior gas unit 170 and the outer gas unit 110 shown in Fig. 5 B and interior gas unit 120 substantially in the same manner, clip wall 1 side disposed in the outdoor (outside building) and indoor (inside building).

And the manufacture of these outer gas unit 160, interior gas unit 170 and method to set up can be roughly the same with the outer gas unit 110 Fig. 5 A, Fig. 5 B etc. Suo Shi, the manufacture of interior gas unit 120, method to set up.This is also identical for the structure shown in Figure 12.And the air-conditioning system of embodiment four can bring the effect roughly the same with the air-conditioning system of embodiment three.And, the distinctive effect of embodiment four described later can also be brought.

Outer gas unit 160 has laminate 111.Laminate 111 has pressure fan (fan) 111a, liquid-gas-heat exchanger 111b, condenser 111c etc., these parts lamination and being integrally constituted as shown in figure.Wherein, these parts give the symbol identical with the structure of the laminate 111 shown in Fig. 5 B, as already described, omit or simplify its description.This is also the same for the structure relating to triple valve 112 ' described later etc.

And expansion valve 123, compressor 113 are separately positioned on certain side in outer gas unit 160, interior gas unit 170.In illustrated example, expansion valve 123 is arranged on interior gas unit 170, and compressor 113 is arranged on outer gas unit 160, but is not limited thereto.

And, identically with Fig. 5 B, make the refrigerant pipe 125 of above-mentioned first refrigerant circulation is provided with above-mentioned expansion valve 123, compressor 113, condenser 111c, condenser 171b etc.And, among the structure of Figure 11, refrigerant pipe 125 is also provided with evaporimeter 172.To be described in detail later for evaporimeter 172.

And among the structure of Figure 11, identical with Fig. 5 B, the midway of refrigerant pipe 125 is provided with the triple valve 112 ' of the example as switching device shifter.Refrigerant pipe 125 branches into illustrated refrigerant pipe 125a and refrigerant pipe 125b from triple valve 112 ' to destination.Triple valve 112 ' is arranged on the back segment (downstream) of condenser 111c.Formed in the downstream of condenser 171b and refrigerant pipe (branched pipe) 125b while refrigerant pipe (branched pipe) 125a is connected to the condenser 171b in interior gas unit 170 and collaborate (collaborate at illustrated junction of two streams R and again become a refrigerant pipe 125).And the refrigerant pipe 125 behind junction of two streams R interflow is connected to expansion valve 123.Wherein, refrigerant pipe 125a and refrigerant pipe 125b is provided with non-return valve 122a, 122b respectively near junction of two streams R.Accordingly, the adverse current of the first cold-producing medium is prevented.

Above, among the structure of Figure 11, mainly the structure roughly the same with the structure shown in Fig. 5 B (obviously, by evaporimeter 172 grade not have except the structure of the imparting symbol identical with Fig. 5 B) is illustrated simply.

And, among the structure of Figure 11, first interior gas unit 170 side is provided with illustrated laminate 171.Laminate 171 is made up of pressure fan (fan) 171a, condenser 171b, liquid-gas-heat exchanger 171c.This laminate 171 is with the difference of above-mentioned laminate 121, laminate 171 is not arranged above-mentioned evaporimeter 121d.Therefore, illustrated pressure fan (fan) 171a, condenser 171b, liquid-gas-heat exchanger 171c itself are roughly the same with pressure fan (fan) 121a, the condenser 121b in laminate 121, liquid-gas-heat exchanger 121c.

According to the air-flow (in figure, representing with dash-dot arrows) of the interior gas formed by pressure fan (fan) 121a, interior gas sequentially passes through these structures with condenser 171b → liquid-gas-heat exchanger 171c's.

Wherein, illustrated structure is only an example, is not limited thereto example.Substantially laminate 171 is arranged within interior gas unit 170, and laminate 111 is arranged within outer gas unit 160, but any side of vibrational power flow in interior gas unit 170 and outer gas unit 160 in addition is all fine.Therefore, such as evaporimeter 172 is arranged on outer gas unit 160 side is also inessential.

Then, in this configuration example, as there is no substituting of evaporimeter 121d as mentioned above, be provided with evaporimeter 172 as shown in the figure.That is, in figure 5b, between expansion valve 123 and compressor 113, (being obviously be on refrigerant pipe 125) is provided with evaporimeter 121d.In contrast, in this structure, between expansion valve 123 and compressor 113, (on refrigerant pipe 125) is provided with evaporimeter 172.

But evaporimeter 121d is different with the structure of evaporimeter 172.Evaporimeter 121d can be considered as liquid-gas-heat exchanger, and the form along with the evaporation of cold-producing medium performs the heat exchange between arbitrary cold-producing medium and air (interior gas).That is, its general evaporimeter used in being general air conditioner etc.

Although in contrast, evaporimeter 172 is existing evaporimeters, is not above-mentioned liquid-gas-heat exchanger, can be considered liquid-liquid heat exchanger.Therefore, evaporimeter 172 can not perform the heat exchange with the air (interior gas) as gas.Evaporimeter 172 substrate is not configured to a part for the laminate 171 that interior gas passes through.The not special regulation of setting position for evaporimeter 172, substrate is arranged at the inside of internal element 170 or external unit 160.

Evaporimeter 172 is arranged on refrigerant pipe 125 as described above, although therefore specially do not illustrate, above-mentioned first cold-producing medium is inner by it.Further, as shown in the figure, evaporimeter 172 is not only connected to above-mentioned refrigerant pipe 125, is also connected to pipe arrangement 162.Pipe arrangement 162 itself is identical with the pipe arrangement 126 of Fig. 5 B, is for making above-mentioned second refrigerant (such as water etc.) carry out the structure circulated outside between the liquid-gas-heat exchanger 111b of gas the unit 160 and liquid-gas-heat exchanger 171c of interior gas unit 170.Wherein, identical with the building form of Fig. 5 B, the circulating pump 124 circulated for making second refrigerant is arranged on the arbitrary position on pipe arrangement 162.

And, as mentioned above, pipe arrangement 162 is also connected with evaporimeter 172.Therefore, not only above-mentioned first cold-producing medium is by the inside of evaporimeter 172, and second refrigerant is also by the inside of evaporimeter 172.And, substantially as shown in the figure, be formed as near liquid-gas-heat exchanger 171c (upstream side) and be provided with the structure of evaporimeter 172.Accordingly, as hereinafter described, the second refrigerant be cooled by the first cold-producing medium in evaporimeter 172 flows into the liquid-gas-heat exchanger 171c being positioned at downstream.

Wherein, in illustrated example, as the difference with Fig. 5 B, there is the difference being provided with triple valve 161 grade, but these triple valves 161 etc. are not indispensable parts.Therefore, for triple valve 161 etc., will be described hereinafter.

As mentioned above, although specially do not illustrate inner composition, the first cold-producing medium and second refrigerant are by evaporimeter 172.And identically with the situation of evaporimeter 121d, the first cold-producing medium evaporates in evaporimeter 172, now absorb the heat (cooling around) of surrounding.For evaporimeter 121d, air (interior gas) is inner by it, and air (interior gas) is cooled thus.In contrast, for evaporimeter 172, second refrigerant is inner by it, and therefore second refrigerant is cooled by the first cold-producing medium.

At this, in figure 5b, second refrigerant according to carrying out in the liquid-gas-heat exchanger 111b of gas unit 110 outside and the heat exchange of outer gas and substantially cooled, thus cooled by this outer gas after second refrigerant be provided to the liquid-gas-heat exchanger 121c of interior gas unit 120.Accordingly, in liquid-gas-heat exchanger 121c, carry out the heat exchange of second refrigerant and interior gas, thus interior gas is cooled by second refrigerant.In addition, for the building form of Figure 11, second refrigerant is cooled further in evaporimeter 172 as described above before being provided to liquid-gas-heat exchanger 171c.

This is as a kind of viewpoint, passes through the direct cooling-air of the first cold-producing medium (interior gas), can be considered as in Figure 11 by the indirect cooling-air of second refrigerant (interior gas) relative in Fig. 5 B.

In the structure of Figure 11, such as enter into gas (return air: heating installation) within interior gas unit 170 from the ceiling inner space shown in Fig. 1 by interior air flow inlet 128 first, to be cooled by liquid-gas-heat exchanger 171c after temperature rising by condenser 171b.This cooled interior gas (cold air) is discharged by interior gas outlet 127, such as, be sent to the baseplate underside space shown in Fig. 1.Accordingly, Quilt with air conditioning is supplied to cooling object space (Servers installed space).

And controller 130 controls compressor 113 and circulating pump 124 etc. and controls the flow etc. of the first cold-producing medium and second refrigerant, to make the design temperature (such as, 18 DEG C) of temperature roughly with given of the cold air of such as discharging from interior gas outlet 127 identical.Wherein, controller 130 such as controls such as compressor 113 and circulating pump 124 etc. by the holding wire 131 shown in Figure 13 described later.

And evaporimeter 172, for making " liquid-liquid heat exchanger " that carry out heat exchange between the liquid of relative low temperature (the first cold-producing medium) and the liquid (second refrigerant) of relatively-high temperature, is specially such as so-called " liquid-liquid plate heat exchanger " etc.

Below, the structure relating to above-mentioned triple valve 161 grade is described.

In the structure of Fig. 5 B, second refrigerant must flow into liquid-gas-heat exchanger 111b and carry out heat exchange with outer gas.Being directed to this, in the structure of Figure 11, not making second refrigerant flow into the situation of (walking around) liquid-gas-heat exchanger 111b by using triple valve 161 etc. to be configured to obtain.For this structure, second refrigerant, also can by the first refrigerant cools in evaporimeter 172 when not carrying out heat exchange with outer gas.

Triple valve 161 is the triple valve for the stream of pipe arrangement being divided into two, has three pipe arrangement connectors, and one of them pipe arrangement connector is used for flowing into (being called inflow entrance), and two other pipe arrangement connector is used for flowing out (being called flow export).Triple valve 161 is connected to above-mentioned pipe arrangement 162, the second refrigerant of 162 circulations in pipe arrangement by circulating pump 124 is flowed into from above-mentioned inflow entrance, and flows out from one of them flow export above-mentioned two flow exports.At this, above-mentioned pipe arrangement 162 can be considered and branched into two by triple valve 161 and branch into illustrated branched pipe 162a, branched pipe 162b.

One of them in two flow exports of above-mentioned triple valve 161 is connected to branched pipe 162a, and another is connected to branched pipe 162b.Branched pipe 162a is collaborating at illustrated junction of two streams Q and branched pipe 162b and is again becoming a pipe arrangement 162 after liquid-gas-heat exchanger 111b, and this pipe arrangement 162 is connected to the evaporimeter 172 of back segment.In addition, branched pipe 162b directly collaborates in branched pipe 162a in above-mentioned junction of two streams Q connection.

When second refrigerant flows out to branched pipe 162a from triple valve 161, second refrigerant, by after liquid-gas-heat exchanger 111b, flow into evaporimeter 172.In addition, when second refrigerant flows into branched pipe 1621b from triple valve 161, second refrigerant is without the need to flowing directly into evaporimeter 172 by liquid-gas-heat exchanger 111b.

Substantially, in liquid-gas-heat exchanger 111b, can, by under the situation of outer air cooling but second refrigerant, make second refrigerant by liquid-gas-heat exchanger 111b.Conversely, such as, under the situation of " outer temperature degree > flows into the temperature of the second refrigerant of liquid-gas-heat exchanger 111b ", second refrigerant flows out to branched pipe 162b(from triple valve 161 and gets around liquid-gas-heat exchanger 111b).Accordingly, second refrigerant temperature in liquid-gas-heat exchanger 111b can be avoided to be promoted.

But be not limited to this example, can adopt and not arrange triple valve 161(therefore, pipe arrangement 162 can not be branched to two) structure.That is, for the structure relevant to second refrigerant, by the structure identical with Fig. 5 B, can be configured to make second refrigerant have to flow through liquid-gas-heat exchanger 111b.

Wherein, although do not illustrate in figure, also can on branched pipe 162a with the junction of two streams Q of branched pipe 162b near non-return valve is set.Accordingly, when second refrigerant flows out to branched pipe 162b from triple valve 161, the phenomenon in this second refrigerant inflow liquid-gas-heat exchanger 111b can be prevented.

Below, the air-conditioning system (its two) for the embodiment four shown in Figure 12 is described.

Figure 12 can be considered the variation of the structure shown in Figure 11, though part is different, almost identical with Figure 11 substantially.Therefore, about Figure 12, for the structure almost identical with Figure 11, omit or simplify its explanation.Wherein, the relation (difference) of Figure 11 with Figure 12 can be regarded as identical with the relation (difference) of Fig. 5 B with above-mentioned Fig. 5 A.

That is, among the structure of Figure 12, be with Figure 11 difference, refrigerant pipe 125 is provided with triple valve.First, the structure of Figure 12 is made up of outer gas unit 160 ' and interior gas unit 170.Interior gas unit can be identical with gas unit 170 in Figure 11, therefore imparts identical symbol " 170 ".In addition, the outer gas unit 160 of outer gas unit and Figure 11 is distinct partially, therefore imparts symbol " 160 ' ".

In the outer gas unit 160 of Figure 11, identical with Fig. 5 B, the outflow side (downstream) of condenser 111c is provided with triple valve 112 ', makes the first cold-producing medium must by condenser 111c.And, control whether to make the first cold-producing medium further by condenser 171b according to triple valve 112 '.

In addition, in the outer gas unit 160 ' of Figure 12, identical with Fig. 5 A, the inflow side (upstream side) of condenser 111c is provided with triple valve 112.And, any one state made in the first cold-producing medium " by condenser 111c but not by the state of condenser 121b " and " not by condenser 111c but pass through the state of condenser 121b " is switched to by triple valve 112.

Above, about the structure of Figure 12, only carry out simple explanation for Figure 11 difference.Wherein, the function of the structure of Figure 12, effect are roughly the same with the structure of Figure 11.

Then, below Figure 13 is described.

The action model of the air-conditioning system of embodiment four as above shown in Figure 13 (a).And, analog result relevant to the minimizing power consumption of embodiment four shown in Figure 13 (b).

First, Figure 13 (a) is described.Wherein, each temperature shown in Figure 13 (a) is identical with Fig. 6 (a), shows the example based on analog result etc., but is not limited to this example.

At this, Figure 13 (a) is corresponding with the configuration example of above-mentioned Figure 12, imparts the symbol with each structure shown in Figure 12.Such as, but illustrated radiator body 140 is radiator body 140 shown in Fig. 6 (a), is equivalent to the radiator body 101(server unit etc. shown in Fig. 1).And Figure 13 (a) becomes the first cold-producing medium not by the situation of the state of condenser 111c side corresponding in Figure 12 by triple valve 112.Therefore, in Figure 13 (a), condenser 111c is not shown, and in the downstream of compressor 113 shown with condenser 171b.

As in Figure 13 (a) with shown in thick-line arrow, indoor air (interior gas) circulates to radiator body 140, condenser 171b, liquid-gas-heat exchanger 171c.

And, circulate in the structure of above-mentioned first cold-producing medium on illustrated refrigerant pipe 125.That is, the first cold-producing medium is as shown in the thin-line arrow in figure, circulates in compressor 113, condenser 171b, expansion valve 123, evaporimeter (liquid-liquid heat exchanger) 172.

And, circulate in the structure of above-mentioned second refrigerant on illustrated pipe arrangement 162.That is, second refrigerant is as shown in the fine rule dotted arrow in figure, circulates in circulating pump 124, liquid-gas-heat exchanger 171c, liquid-gas-heat exchanger 111b, evaporimeter (liquid-liquid heat exchanger) 172.

About interior gas, first with Fig. 6 (a) substantially in the same manner, reach gas in 32 DEG C by cooling radiator body 140 temperature rise to 55 DEG C by condenser 171b.This interior gas of 55 DEG C by during liquid-gas-heat exchanger 171c and second refrigerant carry out heat exchange and be cooled, thus temperature decline (reaching 18 DEG C of illustrated example).Then, this interior gas of 18 DEG C is such as sent to the baseplate underside space shown in Fig. 1 and cools above-mentioned radiator body 140.

When Fig. 6 (a), the interior gas of above-mentioned 55 DEG C is by being cooled according to carrying out heat exchange with second refrigerant during liquid-gas-heat exchanger 142, thus temperature declines, but the temperature of second refrigerant is subject to the impact (being such as 36 DEG C) of outer temperature degree, therefore the temperature of interior gas cannot be dropped to design temperature (18 DEG C etc.).The temperature of interior gas dropped to design temperature (18 DEG C etc.) by the evaporimeter 143 of back segment.

Relative to this, in the example of Figure 13 (a), can pass through evaporimeter (liquid-liquid heat exchanger) 172 makes the temperature of second refrigerant be less than (below design temperature, be 18 DEG C in this example) outer temperature degree, till thus the temperature of interior gas can being dropped to design temperature (18 DEG C) in liquid-gas-heat exchanger 171c.

At this, as mentioned above (and as shown in Figure 13 (a)), the first cold-producing medium and second refrigerant, all by evaporimeter (liquid-liquid heat exchanger) 172, carry out the heat exchange between the first cold-producing medium and second refrigerant thus in evaporimeter 172.In illustrated example, the temperature flowing into the first cold-producing medium of evaporimeter 172 reaches 10 DEG C.In addition, 18 DEG C are become from the temperature (that is, the temperature of the second refrigerant after carrying out heat exchange with the first cold-producing medium) of the second refrigerant of evaporimeter 172 outflow.

At this, although the temperature of the second refrigerant of not shown inflow evaporimeter 172, after second refrigerant carries out heat exchange with outer gas (36 DEG C) in liquid-gas-heat exchanger 111b, flow into evaporimeter 172.Therefore, the temperature substantially flowing into the second refrigerant of evaporimeter 172 can not be less than outer temperature degree (36 DEG C).That is, in illustrated example, in evaporimeter 172, between first cold-producing medium of 10 DEG C and the second refrigerant of 36 DEG C, heat exchange is carried out.Therefore, obvious second refrigerant, by the first refrigerant cools, is cooled to till 18 DEG C as described above in illustrated example.

And although also do not illustrate the temperature (being recorded as temperature Ta) of the second refrigerant flowed out from liquid-gas-heat exchanger 171c, this dissimilates according to the flow of second refrigerant.That is, when the flow of second refrigerant is few when, said temperature Ta likely reaches the temperature (50 DEG C with first-class) close to such as interior temperature degree (55 DEG C).In addition, when the flow of second refrigerant is large, said temperature Ta likely reaches the temperature lower than such as outer temperature degree (36 DEG C).

Under the circumstances, the configuration example that arranges above-mentioned triple valve 161 grade is also carried out.That is, such as, when " the outer temperature degree of Ta < ", controller 130 also can control triple valve 161 and become the state making second refrigerant walk around (not passing through) liquid-gas-heat exchanger 111b.

At this, can arrange not shown " mixed/stirred unit " in the back segment of liquid-gas-heat exchanger 171c (downstream for interior gas).Should " mixed/stirred unit " be that therefore existing structure no longer specially illustrates/illustrate, but its be by inside by gas and vapor permeation/stirrings such as air, thus the structure making the Temperature Distribution of the gases such as air roughly the same.Namely, although the temperature of gas (cold air) is defined as 18 DEG C in flowing out from liquid-gas-heat exchanger 171c as mentioned above, but this refers to temperature when being adjusted to roughly the same by its Temperature Distribution, in fact Temperature Distribution can not be made roughly the same, well imagine, can become and not only there is the state that the low part of (compared with 18 DEG C) temperature also exists the high part of temperature.For this reason, form by arranging above-mentioned not shown " mixed/stirred unit " structure making Temperature Distribution roughly the same.

But, cold air naturally mixes when through floor lower side space etc., thus likely there is the situation that when arriving radiator body 140, Temperature Distribution is roughly the same, therefore likely there is the situation that above-mentioned not shown " mixed/stirred unit " might not be set.

Wherein, for the structure relevant to making the freeze cycle of the first refrigerant circulation (each structure on refrigerant pipe 125 and above-mentioned refrigerant pipe 125), be considered as except replacing except evaporimeter (liquid-liquid heat exchanger) 172 with evaporimeter (liquid-gas-heat exchanger) 143, all the other are roughly the same with Fig. 6 (a) is also inessential.Therefore, briefly, the first cold-producing medium becomes after 25 DEG C by carrying out heat exchange at evaporimeter (liquid-liquid heat exchanger) 172 and second refrigerant, is compressed and become 66 DEG C by compressor 113.By carrying out heat exchange with interior gas in condenser 171b, temperature declines (becoming 32 DEG C) this first cold-producing medium of 66 DEG C, and temperature declines (becoming 10 DEG C) further by expansion valve 123.This first cold-producing medium of 10 DEG C carries out heat exchange with second refrigerant in evaporimeter 172 as above.

At this, the analog result shown in Figure 13 (b) is described.

Curve map shown in Figure 13 (b) is identical with the curve map shown in Fig. 6 (b), transverse axis represents outer temperature degree (DEG C), the longitudinal axis represents power consumption (KW), and the hollow circular (zero) in curve represents the data of system in the past, and solid circles (●) represents the data of the air-conditioning system of embodiment four.Wherein, these data are equivalent to " the overall power consumption " in Fig. 6 (b).And wherein air-conditioning system is in the past such as the air-conditioning system of above-mentioned Figure 14, but is not limited thereto, such as, for the air-conditioning system of above-described embodiment one or embodiment two is also inessential.

As shown in the figure, when temperature degree is lower outside, be no matter air-conditioning system in the past or this air-conditioning system (air-conditioning system of embodiment four), power consumption is not that the such of the imagination changes.

But when outer temperature degree uprises as to a certain degree (be also called high-temperature area, the degree exceeding such as 30 DEG C becomes a benchmark), as shown in the figure, the power consumption of the entirety along with the rising of temperature of air-conditioning system in the past increases sharply.

In addition, in the air-conditioning system of embodiment four, in above-mentioned high-temperature area, power consumption is so far roughly the same, increases lentamente, and can not increase sharply along with the increase of outer temperature degree.For this reason, as shown in the figure, in above-mentioned high-temperature area, outer temperature degree becomes higher, and the power consumption difference of the entirety of air-conditioning system in the past and this air-conditioning system becomes larger.

So, under the environment that temperature degree is to a certain level or higher outside, the air-conditioning system of embodiment four is fewer than its power consumption of air-conditioning system in the past, and outer temperature degree is higher, and its energy-saving effect is larger.

Wherein, the configuration example shown in Figure 11, Figure 12 only as an example, and is not limited thereto example.Such as, show the variation of Fig. 9 for above-mentioned Fig. 5 A, and also can be suitable for same variation for Figure 11, Figure 12.This variation is no longer specially illustrated, but well imagines, should be able to know clearly from the relation of above-mentioned Fig. 5 A and Fig. 9.

According to the air-conditioning system (one) (its two) of the above embodiments four, on the basis obtaining the effect roughly the same with the air-conditioning system of above-described embodiment three, also there is following effect.

Be the liquid-gas-heat exchanger of the heat exchange performed between air (interior gas) and liquid (the first cold-producing medium) relative to the evaporimeter (evaporimeter 121d etc.) of other embodiments, evaporimeter 172 is liquid-liquid heat exchanger as above.In general, liquid-liquid heat exchanger compares liquid-gas-heat exchanger, and heat exchanger effectiveness is higher.Therefore, when heat exchange performance is identical, compared with liquid-gas-heat exchanger, liquid-liquid heat exchanger can realize miniaturization (as an example, the volume of evaporimeter 172 can be about 5% ~ 10% of evaporimeter 121d).

In embodiment is third-class, the path that interior gas flows through is provided with two heat exchangers (being such as liquid-gas-heat exchanger 121c and evaporimeter 121d in Fig. 5 A, Fig. 5 B).In contrast, in the structure of Figure 11, body 12, eliminate evaporimeter 121d, and evaporimeter 172 is not arranged on the path that interior gas flows through.So, reduce the blast pressure of interior gas by removing evaporimeter 121d, thus be improved air-supply efficiency.This saves bringing the electric power of such as fan 171a etc.

Evaporimeter 121d and evaporimeter 172 all perform the cooling based on the first cold-producing medium, but compared to evaporimeter 121d cooling-air, evaporimeter 172 cooling liquid (second refrigerant).Because cooled medium is that thermal capacity compares the larger liquid of air, therefore variations in temperature is slow, stable temperature control.

Such as, suppose because certain reason temporarily causes the situation that the temperature change of the first cold-producing medium is larger.In this case, in mode in the past, also can produce larger variation by the temperature of the direct cooled air of the first cold-producing medium (interior gas).In contrast, in the manner, the temperature also change of second refrigerant, but its variations in temperature (compared to air) is slow, therefore also becomes slow by the variations in temperature of second refrigerant cooled air (interior gas).Therefore, control to become easy for the temperature interior temperature degree maintained near setting value (such as, 18 DEG C).

The situation that temperature degree is high outside (such as, when flowing into the temperature of the outer gas of temperature < of the second refrigerant of liquid-gas-heat exchanger 111b), by triple valve 161, second refrigerant is circulated with the form walking around liquid-gas-heat exchanger 111b, thus second refrigerant can be avoided to be heated by outer gas and the situation of temperature rising.

According to the air-conditioning system of the outer gas of utilization of the present invention, gas unit, outer gas unit in it, relate to cool interior space air-conditioning system with utilizing outer gas energy-saving, even if the interior air cooling that also can make utilization outer gas when temperature degree is high outside, but while generation effect, can seek the energy-saving of the air-conditioning system of compression freeze cycle.

Claims

1. utilize an air-conditioning system for outer gas, it is characterized in that,

Arrange in indoor the first heat exchanger, evaporimeter, condenser, for making interior gas by the first pressure fan of this first heat exchanger, evaporimeter, condenser, and from the upstream side of the air-flow of the described interior gas formed by this first pressure fan, set gradually described condenser, described first heat exchanger, described evaporimeter

Second heat exchanger is set in outside, for making described outer gas by the second pressure fan of this second heat exchanger,

Arrange and be connected to described evaporimeter, described condenser, be arranged on the expansion valve of any side in described outside and described indoor, be arranged on the first pipe arrangement of the compressor of any side in described outside and described indoor, by making the first cold-producing medium via this first pipe arrangement to described evaporimeter, described condenser, described expansion valve, described compressor cycle and the air conditioner formed based on compression freeze cycle

The indirect outer gas refrigeration machine be constructed as follows: the second pipe arrangement being connected to described first heat exchanger and described second heat exchanger is set, make second refrigerant via this second pipe arrangement to described first heat exchanger, second heat exchanger circulation, by making this second refrigerant and carrying out heat exchange by the described interior gas after described condenser in described first heat exchanger, this interior gas is cooled thus by this second refrigerant, in described second heat exchanger, heat exchange is carried out by making the second refrigerant after the described interior gas of cooling and described outer gas, thus by this outer air cooling but this second refrigerant.

2. utilize an air-conditioning system for outer gas, it is characterized in that, possess the interior gas unit that interior gas is passed through and the outer gas unit that outer gas is passed through,

Described interior gas unit possess the first heat exchanger, evaporimeter, condenser, for making described interior gas by the first pressure fan of this first heat exchanger, evaporimeter, condenser, and have from the upstream side of the air-flow of the described interior gas formed by this first pressure fan, to set gradually described condenser, described first heat exchanger, the forming of described evaporimeter

Described outer gas unit possesses the second heat exchanger, for making described outer gas by the second pressure fan of this second heat exchanger,

Arrange and be connected to described evaporimeter, described condenser, be arranged on the expansion valve of any side in described outer gas unit and described interior gas unit, be arranged on the first pipe arrangement of the compressor of any side in described outer gas unit and described interior gas unit, by making the first cold-producing medium via this first pipe arrangement to described evaporimeter, described condenser, described expansion valve, described compressor cycle and the air conditioner formed based on compression freeze cycle

3. the air-conditioning system of the outer gas of utilization according to claim 2, it is characterized in that, flow in described interior gas unit, rise as temperature in cooling object space and while the described interior gas that becomes heating installation utilizes during by described condenser the heat release of this condenser and temperature to rise further, the temperature of described first cold-producing medium declined.

4. the air-conditioning system of the outer gas of utilization according to claim 3, it is characterized in that, the described interior aerial root that temperature rises in described condenser according to by during described first heat exchanger and described second refrigerant carry out heat exchange and temperature declines, cold air is become afterwards through described evaporimeter is cooled, and be supplied to described cooling object space

Described first cold-producing medium that temperature declines in described condenser circulates with the order of described expansion valve, described evaporimeter, and in this evaporimeter, be cooled through the described interior gas of this evaporimeter.

5. the air-conditioning system of the outer gas of the utilization according to any one claim in claim 2 to 4, it is characterized in that, while described outer gas unit arranges the second condenser further, in this second condenser, connect the branched pipe formed at branched halfway by described first pipe arrangement

The branch point of described first pipe arrangement arranges switching device shifter, makes described first cold-producing medium to any one party circulation in the second condenser in the condenser in described interior gas unit and described outer gas unit by this switching device shifter.

6. the air-conditioning system of the outer gas of the utilization according to any one claim in claim 2 to 4, is characterized in that,

Described outer gas unit arranges the second condenser further, described first pipe arrangement is connected to this second condenser, while this first pipe arrangement of refrigerant outflow side branch of this second condenser, switching device shifter is set at this branch point, and is switched to the first path of the backward described expansion valve circulation making described cold-producing medium to the condenser circulation in described interior gas unit by this switching device shifter and makes the not circulation and to any one path in the second path that described expansion valve circulates in the condenser in described interior gas unit of described first cold-producing medium.

7. the air-conditioning system of the outer gas of utilization according to claim 5, it is characterized in that, arrange described second heat exchanger at the upstream side of the air-flow of the described outer gas formed by described second pressure fan, downstream arranges described second condenser.

8. the air-conditioning system of the outer gas of utilization according to claim 6, it is characterized in that, arrange described second heat exchanger at the upstream side of the air-flow of the described outer gas formed by described second pressure fan, downstream arranges described second condenser.

9. the air-conditioning system of the outer gas of utilization according to claim 5, it is characterized in that, if outer temperature degree is high, then by described switching device shifter, described first cold-producing medium is circulated to described condenser, if outer temperature degree is low, then make described first cold-producing medium to described second condenser circulation by described switching device shifter.

10. the air-conditioning system of the outer gas of utilization according to claim 6, is characterized in that, if outer temperature degree is higher than interior temperature degree, then makes described first cold-producing medium to described first path circulation by described switching device shifter.

11. 1 kinds of interior gas unit of air-conditioning system utilizing outer gas, this interior gas unit corresponds to side disposed in the outdoor and the outer gas unit that passes through of outer gas and arranging, this interior gas unit side disposed in the interior and interior gas passes through this interior gas unit, it is characterized in that,

Have the first heat exchanger, evaporimeter, condenser, for making described interior gas by the first pressure fan of this first heat exchanger, evaporimeter, condenser, and have from the upstream side of the air-flow of the described interior gas formed by this first pressure fan, to set gradually described condenser, described first heat exchanger, the forming of described evaporimeter

Have and be connected to described evaporimeter, described condenser, the expansion valve be arranged in described outer gas unit or described interior gas unit, be arranged on the part of the first pipe arrangement of the compressor in described outer gas unit or described interior gas unit, by making the first cold-producing medium via this first pipe arrangement to described evaporimeter, described condenser, described expansion valve, described compressor cycle and the air conditioner formed based on compression freeze cycle

The indirect outer gas refrigeration machine be constructed as follows a: part with the second pipe arrangement of the second heat exchanger be connected in described first heat exchanger and described outer gas unit, make second refrigerant via this second pipe arrangement to described first heat exchanger and described second heat exchanger circulation, by making this second refrigerant and carrying out heat exchange by the described interior gas after described condenser in described first heat exchanger, this interior gas is cooled thus by this second refrigerant, in described second heat exchanger, heat exchange is carried out by making the second refrigerant after the described interior gas of cooling and described outer gas, thus by this outer air cooling but this second refrigerant.

12. 1 kinds of outer gas unit of air-conditioning system utilizing outer gas, this outer gas unit corresponds to side disposed in the interior and the interior gas unit that passes through of interior gas and arranging, this outer gas unit side disposed in the outdoor and outer gas passes through this outer gas unit, it is characterized in that,

There is the second heat exchanger, for making described outer gas by the second pressure fan of this second heat exchanger,

Have to be connected to and be arranged on condenser in described interior gas unit and evaporimeter, the expansion valve be arranged in described outer gas unit or described interior gas unit, be arranged on the part of the first pipe arrangement of the compressor in described outer gas unit or described interior gas unit, by making the first cold-producing medium via this first pipe arrangement to described evaporimeter, described condenser, described expansion valve, described compressor cycle and the air conditioner formed based on compression freeze cycle

The indirect outer gas refrigeration machine be constructed as follows a: part with the second pipe arrangement of the first heat exchanger be connected in described second heat exchanger and described interior gas unit, make second refrigerant via this second pipe arrangement to the second heat exchanger circulation in described first heat exchanger and described outer gas unit, by making this second refrigerant and carrying out heat exchange by the described interior gas after described condenser in described first heat exchanger, this interior gas is cooled thus by this second refrigerant, in described second heat exchanger, heat exchange is carried out by making the second refrigerant after the described interior gas of cooling and described outer gas, thus by this outer air cooling but this second refrigerant.

13. 1 kinds of laminates, it is configured to be arranged within interior gas unit, for cooling by gas in this interior gas unit, wherein, this interior gas unit side disposed in the interior, and arrange accordingly with the outer gas unit having outer gas to pass through of side disposed in the outdoor,

Wherein, condenser, the first heat exchanger, evaporimeter, the first pressure fan are formed integration by lamination,

Described condenser is the condenser of the compression freeze cycle forming use first cold-producing medium, for make the described interior gas unit of inflow, to rise as temperature in cooling object space and the described interior gas that becomes heating installation passes through, make the temperature of this interior gas increase according to heat release while, the temperature of described first cold-producing medium is declined

Described first heat exchanger makes to pass through with the second refrigerant of described outer gas heat exchange and temperature rises in described condenser described interior gas in described outer gas unit, to make to carry out heat exchange between this second refrigerant and this interior gas,

Described evaporimeter forms described compression freeze cycle together with described condenser.

The air-conditioning system of 14. 1 kinds of outer gas of utilization, is characterized in that,

Arrange in indoor the first heat exchanger, condenser, for making interior gas by the first pressure fan of this first heat exchanger, condenser, and from the upstream side of the air-flow of the described interior gas formed by this first pressure fan, set gradually described condenser, described first heat exchanger

The evaporimeter of any side be connected in described condenser, side disposed in the outdoor and described indoor is set, is arranged on the expansion valve of any side in described outside and described indoor, is arranged on the first pipe arrangement of the compressor of any side in described outside and described indoor, by making the first cold-producing medium via this first pipe arrangement to described evaporimeter, described condenser, described expansion valve, described compressor cycle and form compression freeze cycle

The indirect outer gas refrigeration machine be constructed as follows: the second pipe arrangement being connected to described first heat exchanger and described evaporimeter is set, make second refrigerant via this second pipe arrangement to described first heat exchanger, the circulation of described evaporimeter, in this evaporimeter, heat exchange is carried out by making described first cold-producing medium and second refrigerant, thus by this this second refrigerant of the first refrigerant cools, by making described interior gas and described cooled second refrigerant carry out heat exchange in described first heat exchanger, cool this interior gas by this second refrigerant thus.

The air-conditioning system of 15. 1 kinds of outer gas of utilization, is characterized in that, possesses the interior gas unit that interior gas is passed through and the outer gas unit that outer gas is passed through,

Described interior gas unit possess the first heat exchanger, condenser, for making interior gas by the first pressure fan of this first heat exchanger, condenser, and have from the upstream side of the air-flow of the described interior gas formed by this first pressure fan, to set gradually described condenser, the forming of described first heat exchanger

The first pipe arrangement being connected to described condenser, being arranged on the evaporimeter of any side in described outer gas unit and described interior gas unit, being arranged on the expansion valve of any side in described outer gas unit and described interior gas unit, being arranged on the compressor of any side in described outer gas unit and described interior gas unit is set, by making the first cold-producing medium via this first pipe arrangement to described evaporimeter, described condenser, described expansion valve, described compressor cycle and form compression freeze cycle

The air-conditioning system of the outer gas of 16. utilizations according to claims 14 or 15, it is characterized in that, in outside or described outer gas unit arrange be connected to described second pipe arrangement the second heat exchanger, for making outer gas by the second pressure fan of this second heat exchanger

Make after described second refrigerant and outer gas carries out heat exchange, in described evaporimeter, to make described second refrigerant and described first cold-producing medium carry out heat exchange in described second heat exchanger.

The air-conditioning system of the outer gas of 17. utilizations according to claim 16, it is characterized in that, described second pipe arrangement is arranged this second pipe arrangement is branched into two branched pipes, with make described second refrigerant in these two branched pipes any one branched pipe flowing switching device shifter while, any one branched pipe in these two branched pipes is connected to described second heat exchanger

According to described switching device shifter, can switch to and make described second refrigerant to the state of described second heat exchanger circulation and do not make described second refrigerant to any one state of described second heat exchanger circulation.

The air-conditioning system of the outer gas of 18. utilizations according to any one claim in claim 14,15,17, it is characterized in that, described first heat exchanger is liquid-gas-heat exchanger, and described evaporimeter is liquid-liquid heat exchanger.

19. 1 kinds of interior gas unit of air-conditioning system utilizing outer gas, is characterized in that, this interior gas unit corresponds to side disposed in the outdoor and the outer gas unit that passes through of outer gas and arranging, this interior gas unit side disposed in the interior and interior gas passes through this interior gas unit, it is characterized in that,

Have the first heat exchanger, condenser, for making interior gas by the first pressure fan of this first heat exchanger, condenser, and have from the upstream side of the air-flow of the described interior gas formed by this first pressure fan, to set gradually described condenser, the forming of described first heat exchanger

There is the evaporimeter being connected to described condenser, being arranged on any side in described outer gas unit and described interior gas unit, the expansion valve being arranged on any side in described outer gas unit and described interior gas unit, be arranged on the part of the first pipe arrangement of the compressor of any side in described outer gas unit and described interior gas unit, by making the first cold-producing medium via this first pipe arrangement to described evaporimeter, described condenser, described expansion valve, described compressor cycle and form compression freeze cycle

The indirect outer gas refrigeration machine be constructed as follows a: part with the second pipe arrangement being connected to described first heat exchanger and described evaporimeter, make second refrigerant via this second pipe arrangement to described first heat exchanger, the circulation of described evaporimeter, in this evaporimeter, heat exchange is carried out by making described first cold-producing medium and second refrigerant, thus by this this second refrigerant of the first refrigerant cools, by making described interior gas and described cooled second refrigerant carry out heat exchange in described first heat exchanger, cool this interior gas by this second refrigerant thus.