CN102374592A - Heat exchanger and air conditioner on which this heat exchanger is mounted - Google Patents
Heat exchanger and air conditioner on which this heat exchanger is mounted Download PDFInfo
- Publication number
- CN102374592A CN102374592A CN201110241862XA CN201110241862A CN102374592A CN 102374592 A CN102374592 A CN 102374592A CN 201110241862X A CN201110241862X A CN 201110241862XA CN 201110241862 A CN201110241862 A CN 201110241862A CN 102374592 A CN102374592 A CN 102374592A
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- Prior art keywords
- pipe arrangement
- heat exchanger
- copper
- heat
- aluminum
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/26—Refrigerant piping
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D15/00—Other domestic- or space-heating systems
- F24D15/04—Other domestic- or space-heating systems using heat pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
- F24F1/0057—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
- F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
- F24F1/0067—Indoor units, e.g. fan coil units characterised by heat exchangers by the shape of the heat exchangers or of parts thereof, e.g. of their fins
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0068—Indoor units, e.g. fan coil units characterised by the arrangement of refrigerant piping outside the heat exchanger within the unit casing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
- F28D1/0477—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
- F28D1/0477—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
- F28D1/0478—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag the conduits having a non-circular cross-section
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/084—Heat exchange elements made from metals or metal alloys from aluminium or aluminium alloys
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/085—Heat exchange elements made from metals or metal alloys from copper or copper alloys
Abstract
A heat exchanger in which a breakage of a connection pipeline during installation or the like can be prevented is obtained. A heat exchanger (10) is provided with a heat transfer pipe which is formed of aluminum or aluminum alloy and a connection pipeline (20) through which a refrigerant flowing in from the heat transfer pipe or a refrigerant flowing into the heat transfer pipe passes and is disposed in an air conditioner, and the connection pipeline (20) has a gas pipeline (30) and a liquid pipeline (40). Also, each of the gas pipeline (30) and the liquid pipeline (40) is constituted by connecting an aluminum pipeline (31) or (41) formed of aluminum or aluminum alloy and a copper pipeline (32) or (42) formed of copper or copper alloy by a connection portion (37) or (47), respectively, and each of descending portions (33) and (43) is formed. Each of the connection portions (37) and (47) is arranged in straight portions (35) and (45) of the descending portions (33) and (43), respectively, and in the straight portions (35) and (45), the aluminum pipelines (31) and (41) are longer than the copper pipelines (32) and (42).
Description
Technical field
The present invention relates to a kind of heat exchanger and carried the air conditioner of this heat exchanger, especially relate to and a kind ofly form the heat exchanger of heat-transfer pipe and carried the air conditioner of this heat exchanger by aluminum or aluminum alloy.
Background technology
At present known have a heat exchanger (below be called aluminum-made heat exchanger) that is formed heat-transfer pipe by aluminum or aluminum alloy.Such heat exchanger is through at the heat-transfer pipe that is formed by the aluminum or aluminum alloy (refrigerant piping that is formed by aluminum or aluminum alloy that perhaps, is connected with this heat-transfer pipe.Below be called the aluminium pipe arrangement) go up to connect the refrigerant piping that forms by copper or copper alloy (below be called the copper pipe arrangement), be assembled into the freeze cycle loop.Like this, using the copper pipe arrangement aluminum-made heat exchanger to be packed under the situation in freeze cycle loop, when the water that is attached to the copper pipe arrangement is attached to heat-transfer pipe or aluminium pipe arrangement, there is the problem of heat-transfer pipe and aluminium pipe arrangement generation galvano-cautery (corroding between different metal).
Therefore, in the past, proposed to seek to prevent on heat-transfer pipe that forms by aluminum or aluminum alloy or aluminium pipe arrangement, to take place the heat exchanger of galvano-cautery (corroding between different metal).As such aluminum-made heat exchanger; For example proposed like lower device; Promptly; " constitute by the air conditioner main body with the fixed part 11 that the freeze cycle unit is fixed in the air conditioner main body, this freeze cycle unit comprises heat exchanger 6 and the copper that is connected with this heat exchanger 6 or the refrigerant piping 7 of copper alloy system of compressor, aluminum or aluminum alloy system, will be positioned at the water droplet that the whole conduct of part of top of the heat exchanger 6 of refrigerant piping 7 tilts towards refrigerant piping 7 from heat exchanger 6 downwards and fall the pipe arrangement portion 9 that prevents; water droplet is mobile downwards along pipe arrangement, prevents the galvano-cautery of the heat exchanger 6 that copper ion causes." (for example, with reference to patent documentation 1).
[patent documentation 1] japanese kokai publication hei 6-300303 communique (summary, Fig. 1)
The air conditioner (for example indoor set) that has carried aluminum-made heat exchanger is in the past being installed or during telephone-moving; The connecting pipings of this aluminum-made heat exchanger (above-mentioned aluminium pipe arrangement and copper pipe arrangement) is connected to the freeze cycle loop with aluminum-made heat exchanger; Therefore, twist to any direction.At this moment, because in the past aluminum-made heat exchanger is not considered to install or the load that applies to connecting pipings during telephone-moving, install or connecting pipings damages during telephone-moving problem so exist.
Summary of the invention
The present invention makes for solving aforesaid problem, and its purpose is to obtain a kind of air conditioner that when installation or telephone-moving, can prevent the aluminum-made heat exchanger that connecting pipings is damaged and carry this heat exchanger.
Heat exchanger of the present invention has the heat-transfer pipe that formed by aluminum or aluminum alloy and supplies the cold-producing medium that flows into from heat-transfer pipe or connecting pipings that the cold-producing medium that flows into to heat-transfer pipe passed through; It is the heat exchanger that is arranged at air conditioner; Wherein, connecting pipings has the liquid pipe arrangement that gas pipe arrangement that gas refrigerant passes through and liquid refrigerant or gas-liquid two-phase system cryogen pass through.In addition; First refrigerant piping that gas pipe arrangement and liquid pipe arrangement are formed by aluminum or aluminum alloy reaches second refrigerant piping that is formed by copper or copper alloy and is constituted by connection at connecting portion; First refrigerant piping is connected in said heat-transfer pipe, forms from the portion that hangs down that heat-transfer pipe hangs down.And connecting portion is configured in the straight line portion of the portion of hanging down, the straight line portion in the portion of hanging down, and first refrigerant piping is longer than second refrigerant piping.
In addition, air conditioner of the present invention is equipped with above-mentioned heat exchanger.
The effect of invention
In the present invention, the connecting portion of first refrigerant piping of connecting pipings (refrigerant piping that is formed by aluminum or aluminum alloy) and second refrigerant piping (refrigerant piping that is formed by copper or copper alloy) is configured in the straight line portion of the portion of hanging down.And, the straight line portion in the portion of hanging down, first refrigerant piping is longer than second refrigerant piping.Therefore, even in the connecting pipings distortion, load is applied under the situation on the connecting pipings, can prevent that also connecting pipings is damaged.
Description of drawings
Fig. 1 is the key diagram of the state that is provided with of the air conditioner of expression embodiment of the present invention.
Fig. 2 is the stereogram of the heat exchanger of expression embodiment of the present invention.
Fig. 3 is the front view (main position enlarged drawing) of the heat exchanger of expression embodiment of the present invention.
Fig. 4 is the side view of the heat exchanger of expression embodiment of the present invention.
Fig. 5 is the vertical view of the indoor set of expression embodiment of the present invention.
Fig. 6 is the cutaway view of connection status of aluminium pipe arrangement and the copper pipe arrangement of expression embodiment of the present invention.
The explanation of Reference numeral
1 framework, 2 suction inlets, the 2a filter, 3 blow-off outlets, 4 wind direction guiding mechanisms, 5 pressure fans, 8 again heating and dehumidification use decompressor; 10 indoor heat converters, 10a heat exchanger, 10b heat exchanger, 11 fins, 12 heat-transfer pipes (pipe shape), 15 fins, 16 heat-transfer pipes (flat tube); 20 connecting pipings, 29 horn mouth nut connecting portions, 30 gas pipe arrangements, 31 aluminium pipe arrangements, 32 bronze medal pipe arrangements, 33 portions that hang down, 34 upper curve portions; 35 line parts, 36 lower curve portions, 37 connecting portions, 39 horn mouth nut connecting portions, 40 liquid pipe arrangements, 41 aluminium pipe arrangements, 42 bronze medal pipe arrangements; 43 portions that hang down, 44 upper curve portions, 45 line parts, 46 lower curve portions, 47 connecting portions, 49 horn mouth nut connecting portions, 50 prolong pipe arrangements; 51 horn mouth nut connecting portions, 60 springs, 100 indoor sets, 101 off-premises stations, 110 conditioned spaces, 111 walls, 112 hole portions.
The specific embodiment
In following embodiment, to heat exchanger lift-launch of the present invention is described in the situation of the indoor set of air conditioner.In addition, in the present invention, the example of the indoor set that used on-wall type is described.
Embodiment
Fig. 1 is the key diagram of the state that is provided with of the air conditioner of expression embodiment of the present invention.
As shown in Figure 1, the air conditioner of this embodiment has indoor set 100 and off-premises station 101.Indoor set 100 is arranged on the wall 111 of conditioned space 110.Off-premises station 101 is arranged on outdoor.
The indoor heat converter 10 of this embodiment is a fin tube heat exchanger.In addition, in this embodiment, a plurality of heat exchanger 10a of the heat-transfer pipe 12 through having used the pipe shape and a plurality of heat exchanger 10b that used the heat-transfer pipe 16 of flat tubulose constitute indoor heat converter 10.A plurality of heat-transfer pipes 12 (pipe shape) that heat exchanger 10a has a plurality of fins 11 that formed by aluminum or aluminum alloy and formed by aluminum or aluminum alloy.It is folded that fin 11 separates the predetermined distance ground storey, and heat-transfer pipe 12 (pipe shape) connects these fin 11 ground settings.A plurality of heat-transfer pipes 16 (flat tubulose) that heat exchanger 10b has a plurality of fins 15 that formed by aluminum or aluminum alloy and formed by aluminum or aluminum alloy.It is folded that fin 15 separates the predetermined distance ground storey, and heat-transfer pipe 16 (flat tubulose) connects these fin 15 ground settings.
When pressure fan 5 was driven, the room air of conditioned space 110 was inhaled in the framework 1 via suction inlet 2.This room air is heated or cooled through indoor heat converter 10 time, becomes Air Conditioning.This Air Conditioning is blown from blow-off outlet 3.That is, the indoor heat converter 10 of this embodiment becomes following structure: used the heat exchanger 10a of the heat-transfer pipe 12 of pipe shape to be configured in the upstream side of wind path, used the heat exchanger 10b of the heat-transfer pipe 16 of flat tubulose to be configured in the downstream of wind path.In addition; Indoor heat converter 10 become can enough heat method structure divided into two parts (for example; Between heat exchanger 10a and the heat exchanger 10b), between method heat exchanger divided into two parts, be connected with again heating and dehumidification with decompressor 8 (for example expansion valve) with heat.Thus, for example when cooling operation, can the part of indoor heat converter 10 be brought into play function as condenser, the remaining part of indoor heat converter 10 is brought into play function as evaporimeter.With the method separated into two parts of indoor heat converter 10 usefulness heat, when when at cooling operation, dehumidifying, the excessive temperature ground of the Air Conditioning that can prevent to blow out from blow-off outlet 3 reduces through like this.
This indoor heat converter 10 has connecting pipings 20.That is, on the heat-transfer pipe (at least one side of heat-transfer pipe 12 and heat-transfer pipe 16) of indoor heat converter 10, be connected with an end of connecting pipings 20.This connecting pipings 20 is the pipe arrangements that formed by copper or copper alloy, is pulled out to outdoor via the hole portion 112 that is formed on the wall 111.On another end of connecting pipings 20, be provided with horn mouth nut connecting portion (flare-nut connection) 29.Horn mouth nut connecting portion 51 through to the prolongation pipe arrangement 50 that is connected with off-premises station 101 is connected with horn mouth nut connecting portion 29, connects indoor set 100 and off-premises station 101.Promptly; Through connecting horn mouth nut connecting portion 51 and horn mouth nut connecting portion 29; Indoor heat converter 10 connects with the inscape (compressor and outdoor heat converter etc., all not shown) that is arranged at the freeze cycle loop of off-premises station 101, constitutes the freeze cycle loop.
In addition, of the back, connecting pipings 20 is made up of two pipe arrangements (gas pipe arrangement 30 and liquid pipe arrangement 40).Therefore, horn mouth nut connecting portion 29 also is made up of two horn mouth nut connecting portions (the horn mouth nut connecting portion 39 of gas pipe arrangement 30 and the horn mouth nut connecting portion 49 of liquid pipe arrangement 40).Therefore, prolong pipe arrangement 50 and also be made up of two pipe arrangements, the horn mouth nut connecting portion 51 that prolongs pipe arrangement 50 also is made up of two horn mouth nut connecting portions.
Then, connecting pipings 20 is elaborated.
Fig. 2 is the stereogram of the heat exchanger of expression embodiment of the present invention.In addition, Fig. 3 is the front view (main position enlarged drawing) of this heat exchanger of expression, and Fig. 4 is the side view of this heat exchanger of expression.In addition, Fig. 2 (a) and Fig. 2 (b) are the figure that is used to explain that gas pipe arrangement 30 separates with liquid pipe arrangement 40, and be all identical except Reference numeral.Below, use these Fig. 2～Fig. 4, specify the connecting pipings 20 of this embodiment.
Connecting pipings 20 has gas pipe arrangement 30 and liquid pipe arrangement 40.Here, the gas pipe arrangement is suitable with first refrigerant piping of the present invention, and the liquid pipe arrangement is suitable with second refrigerant piping of the present invention.
In this embodiment, constitute gas pipe arrangement 30 through the aluminium pipe arrangement 31 that forms by aluminum or aluminum alloy with by the copper pipe arrangement 32 that copper or copper alloy form.Equally, constitute liquid pipe arrangement 40 through the aluminium pipe arrangement 41 that forms by aluminum or aluminum alloy with by the copper pipe arrangement 42 that copper or copper alloy form.It the reasons are as follows.
Usually; The horn mouth nut connecting portion that connect to prolong pipe arrangement 50 and gas pipe arrangement 30 and liquid pipe arrangement 40 at a connected side's pipe arrangement (for example; Prolongation pipe arrangement 50) on internal thread part is set; On connected the opposing party's pipe arrangement (for example, gas pipe arrangement 30 and liquid pipe arrangement 40), external thread part is set.Internal thread part forms internal thread at inner surface, and forms and be formed with the through hole of the spatial communication of this internal thread.And the end of a connected side's pipe arrangement (for example, prolong pipe arrangement 50) processes (flare working) by hole enlargement and insert this through hole through horn mouth.In addition, connected the opposing party's pipe arrangement (for example, gas pipe arrangement 30 and liquid pipe arrangement 40) is gone up the external thread part that is provided with and is set at the pipe arrangement end through soldering.Through screwing togather external thread part and internal thread part, the end by enlarging processing of a connected side's pipe arrangement (for example, prolonging pipe arrangement 50) is clamped between internal thread part and the external thread part, prolongs pipe arrangement 50 and gas pipe arrangement 30 and liquid pipe arrangement 40 thereby connect.Usually, external thread part and internal thread part consider processability and with braze ability of copper pipe arrangement etc., form by brass.
At this moment, for example, only constituting gas pipe arrangement 30 by aluminium pipe arrangement 31, the horn mouth nut connecting portion 39 of gas pipe arrangement 30 is become under the situation of brazen external thread part, the braze ability of aluminium pipe arrangement 31 and horn mouth nut connecting portion 39 becomes difficult.In addition, because aluminium pipe arrangement 31 is dissimilar metals with horn mouth nut connecting portion 39, so can take place like back described galvano-cautery (corroding between dissimilar metal) at both connecting portion.And; For example; Only constituting gas pipe arrangement 30 by aluminium pipe arrangement 31; The horn mouth nut connecting portion 39 of gas pipe arrangement 30 is become under the situation of brazen internal thread part, because aluminium pipe arrangement 31 is dissimilar metals with horn mouth nut connecting portion 39, so can take place like back described galvano-cautery (corroding between dissimilar metal) at both contact site.
In addition, for example,, make the horn mouth nut connecting portion 39 of gas pipe arrangement 30 become under the situation of the external thread part that forms by aluminum or aluminum alloy the undercapacity of the ridge of horn mouth nut connecting portion 39 only constituting gas pipe arrangement 30 by aluminium pipe arrangement 31.In addition; At this moment; Because the horn mouth nut connecting portion 51 as the prolongation pipe arrangement 50 of copper pipe arrangement becomes brazen internal thread part; So, at the horn mouth nut connecting portion 39 of gas pipe arrangement 30 with prolong between the horn mouth nut connecting portion 51 of pipe arrangement 50 and can take place as back described galvano-cautery (corroding between dissimilar metal).
In addition, for example, only constituting gas pipe arrangement 30 by aluminium pipe arrangement 31, the horn mouth nut connecting portion 39 of gas pipe arrangement 30 becomes under the situation of the internal thread part that is formed by aluminum or aluminum alloy, the undercapacity of the ridge of horn mouth nut connecting portion 39.In addition, carry out enlarging at the leading section to aluminium pipe arrangement 31 and add man-hour, the leading section of aluminium pipe arrangement 31 may rupture.In addition; Because the copper pipe arrangement promptly prolongs the horn mouth nut connecting portion 51 of pipe arrangement 50 and becomes brazen external thread part; So, at the horn mouth nut connecting portion 39 of gas pipe arrangement 30 with prolong between the horn mouth nut connecting portion 51 of pipe arrangement 50 and can take place as back described galvano-cautery (corroding between dissimilar metal).
In addition; For example; Only constituting gas pipe arrangement 30 by aluminium pipe arrangement 31; Form under the situation of the horn mouth nut connecting portion 39 of gas pipe arrangement 30 and the horn mouth nut connecting portion 51 that prolongs pipe arrangement 50 undercapacity of the ridge of horn mouth nut connecting portion 39 and horn mouth nut connecting portion 51 by aluminum or aluminum alloy.In addition, become under the situation of internal thread part, add man-hour, possibly rupture at the leading section of aluminium pipe arrangement 31 when the leading section to aluminium pipe arrangement 31 carries out enlarging at the horn mouth nut connecting portion 39 that makes gas pipe arrangement 30.In addition, for preventing to take place as back described galvano-cautery (corroding between dissimilar metal), need form by aluminum or aluminum alloy and prolong pipe arrangement 50 at the connecting portion that prolongs pipe arrangement 50 and horn mouth nut connecting portion 51.Therefore, become under the situation of internal thread part, add man-hour, possibly rupture at the leading section that prolongs pipe arrangement 50 when the leading section that prolongs pipe arrangement 50 is carried out enlarging at the horn mouth nut connecting portion 51 that prolongs pipe arrangement 50.
Therefore, in this embodiment, constitute gas pipe arrangement 30 through aluminium pipe arrangement 31 and copper pipe arrangement 32.That is, the brazen horn mouth nut connecting portion 39 as external thread part or internal thread part is set, can prevents the undercapacity of ridge and the fracture that enlarging adds contingent pipe arrangement leading section in man-hour at the leading section of copper pipe arrangement 32.Equally; Through constituting liquid pipe arrangement 40 by aluminium pipe arrangement 41 and copper pipe arrangement 42; Leading section at copper pipe arrangement 42 is provided with the brazen horn mouth nut connecting portion 49 as external thread part or internal thread part, thereby can prevent the undercapacity of ridge and the fracture that enlarging adds contingent pipe arrangement leading section in man-hour.
Here, in this embodiment, the connecting portion 37 of aluminium pipe arrangement 31 and copper pipe arrangement 32 is connected through eutectic bonding.In addition, the end of a side opposite with connecting portion 37 of aluminium pipe arrangement 31 for example is connected with heat-transfer pipe 12 or heat-transfer pipe 16 through soldering.Equally, the connecting portion 47 of aluminium pipe arrangement 41 and copper pipe arrangement 42 is connected through eutectic bonding.In addition, the end of a side opposite with connecting portion 47 of aluminium pipe arrangement 41 for example is connected with heat-transfer pipe 12 or heat-transfer pipe 16 through soldering.
More detailed, the connecting portion 37,47 of aluminium pipe arrangement 31,41 and copper pipe arrangement 32,42 is as shown in Figure 6.That is, the leading section of copper pipe arrangement 32,42 is inserted the leading section of aluminium pipe arrangement 31,41.And, make both eutectic bondings (metal is contacted with each other and form the joint of eutectic alloy) with certain temperature.In addition, when on connecting portion 37,47, being attached with water, through after the principle stated, galvano-cautery (corroding between dissimilar metal) takes place in connecting portion 37,47 (being the part of aluminum or aluminum alloy more in detail).Therefore,, utilize heat-shrinkable tube to cover connecting portion 37,47, or 37,47 enforcement applications get final product to connecting portion for connecting portion 37,47 is carried out waterproof.
In addition, in this embodiment, for preventing aluminium pipe arrangement 31,41 galvano-cautery (corroding between dissimilar metal) taking place, forms gas pipe arrangement 30 and liquid pipe arrangement 40 with following shape.
When the water that comprises copper ion (Cu2+) splashed on the aluminum or aluminum alloy, aluminum or aluminum alloy became because of the difference of ionization tendency
2Al+3Cu
2+→2Al
3++3Cu
That is aluminium ionization, aluminum or aluminum alloy generation galvano-cautery (corroding between dissimilar metal).
On the other hand, even comprise aluminium ion (Al
3+) water droplet attached on the aluminum or aluminum alloy, owing to be identical atom each other, so galvano-cautery (corroding between dissimilar metal) can not take place aluminum or aluminum alloy.In addition, even comprise aluminium ion (Al
3+) water droplet attached on copper or the copper alloy, because copper is littler than the ionization tendency of aluminium, so galvano-cautery (corroding between dissimilar metal) can not take place for copper or copper alloy.
Therefore, in this embodiment, the portion 33 that hangs down is formed at gas pipe arrangement 30, and this portion 33 that hangs down is configured in gas pipe arrangement 30 on the approximate vertical direction.The portion 33 that hangs down is made up of upper curve portion 34, line part 35 and lower curve portion 36.In addition, the top of the portion 33 that hangs down becomes aluminium pipe arrangement 31, and the bottom of the portion 33 that hangs down becomes copper pipe arrangement 32.And the connecting portion 37 of aluminium pipe arrangement 31 and copper pipe arrangement 32 is configured in the line part 35 of the portion of hanging down 33.
Equally, the portion 43 that hangs down is formed at liquid pipe arrangement 40, and this portion 43 that hangs down is configured in liquid pipe arrangement 40 on the approximate vertical direction.The portion 43 that hangs down is made up of upper curve portion 44, line part 45 and lower curve portion 46.In addition, the top of the portion 43 that hangs down becomes aluminium pipe arrangement 41, and the bottom of the portion 43 that hangs down becomes copper pipe arrangement 42.And the connecting portion 47 of aluminium pipe arrangement 41 and copper pipe arrangement 42 is configured in the line part 45 of the portion of hanging down 43.
Like this, be formed with the portion of hanging down 33,43 on gas pipe arrangement 30 and the liquid pipe arrangement 40, dispose connecting portion 37,47 on the line part 35,45 of the portion 33,43 that hangs down, thus, copper pipe arrangement 32,42 is compared the below that is configured in gravity direction with aluminium pipe arrangement 31,41.Therefore, can prevent to be attached to aluminium pipe arrangement 31,41, can prevent that aluminium pipe arrangement 31,41 from galvano-cautery (corroding between dissimilar metal) taking place attached to the water on the copper pipe arrangement 32,42.
In addition, in this embodiment, the portion 33,43 that hangs down is configured in the approximate vertical direction, but can certainly dispose the portion of hanging down 33,43 obliquely.That is, hang down the copper pipe arrangement 32,42 of portion 33,43 as long as compare the below that is configured in gravity direction with aluminium pipe arrangement 31,41.
In addition, in this embodiment, when the installation of indoor set 100 or telephone-moving, when crooked gas pipe arrangement 30, in order to prevent 30 fragmentations of gas pipe arrangement, to line part 35, be coated with the for example spring 60 of spring steel from the lower curve portion 36 of the portion of hanging down 33.Therefore, compare, the connecting portion 37 of aluminium pipe arrangement 31 and copper pipe arrangement 32 is configured in the top with the upper end of spring 60.Thus, because spring 60 does not contact with aluminium pipe arrangement 31,, can prevent that aluminium pipe arrangement 31 from galvano-cautery (corroding between dissimilar metal) taking place so can prevent to be attached to aluminium pipe arrangement 31 attached to the water on the spring 60.In addition,, can prevent that also this water is attached to aluminium pipe arrangement 31, can prevent that aluminium pipe arrangement 31 from galvano-cautery (corroding between dissimilar metal) taking place even rise gradually via spring 60 attached to the water on the copper pipe arrangement 32.
In addition, in this embodiment, only spring 60 is set at gas pipe arrangement 30.Gas pipe arrangement 30 is compared the pipe diameter with liquid pipe arrangement 40 big, so, compare easy fragmentation with liquid pipe arrangement 40.And; In this embodiment; The aluminium pipe arrangement 31 that connects
and the copper pipe arrangement 32 of
form gas pipe arrangement 30.In addition; The aluminium pipe arrangement 41 that connects
and the copper pipe arrangement 42 of
form liquid pipe arrangement 40.
Here, in this embodiment, spring 60 is not arranged at liquid pipe arrangement 40, but the connecting portion 47 of liquid pipe arrangement 40 connecting portion of copper pipe arrangement 42 (the aluminium pipe arrangement 41 with) can be compared also and is configured in the top with the upper end of spring 60.This is because liquid pipe arrangement 40 is more with the situation that gas pipe arrangement 30 closely is provided with.Through being compared with the upper end of spring 60, the connecting portion 47 of liquid pipe arrangement 40 is configured in the top; Thereby; Because spring 60 does not contact with aluminium pipe arrangement 41,, can prevent that aluminium pipe arrangement 41 from galvano-cautery (corroding between dissimilar metal) taking place so can prevent to be attached to aluminium pipe arrangement 41 attached to the water on the spring 60.In addition,, can prevent that also this water is attached to the aluminium pipe arrangement 41 of liquid pipe arrangement 40, can prevent that aluminium pipe arrangement 41 from galvano-cautery (corroding between dissimilar metal) taking place even rise gradually through spring 60 attached to the water on the copper pipe arrangement 32 of gas pipe arrangement 30.
In addition, in this embodiment, when the installation of indoor set 100 or telephone-moving,, form gas pipe arrangement 30 and liquid pipe arrangement 40 with following shape for preventing gas pipe arrangement 30 and 40 breakages of liquid pipe arrangement.
As shown in Figure 1, when indoor set 100 was set, connecting pipings 20 (gas pipe arrangement 30 and liquid pipe arrangement 40) was drawn out to outdoor via the hole portion 112 of wall 111.At this moment, the position of the hole portion 112 of wall 111 and indoor set 100 is provided with the position because of the environment difference is set.Therefore, gas pipe arrangement 30 and liquid pipe arrangement 40 must shown in Fig. 5 (vertical view), make the portion of hanging down 33,43 along axle in about 180 ° scope to direction distortion arbitrarily.
Make the portion of hanging down 33,43 along under the situation of axle distortion at gas pipe arrangement 30 and liquid pipe arrangement 40, in the portion of hanging down 33,43, through the moment of torsion that applies to them distortion that twists.Through this torsional deflection, in the portion of hanging down 33,43, the leakage of the cold-producing medium that possibly take place to cause and the refrigerant pressure loss that the pipe arrangement fragmentation causes by breakage.
Therefore, in this embodiment, shown in Fig. 2 (a), the line part 35 in the portion that hangs down 33 of gas pipe arrangement 30 makes the length L 1 of aluminium pipe arrangement 31 longer than the length L 2 of copper pipe arrangement 32.In addition, shown in Fig. 2 (b), the line part 45 in the portion that hangs down 43 of liquid pipe arrangement 40 makes the length L 3 of aluminium pipe arrangement 41 longer than the length L 4 of copper pipe arrangement 42.Thus, when the installation of indoor set 100 or telephone-moving, can prevent gas pipe arrangement 30 and 40 breakages of liquid pipe arrangement.
More detailed, aluminium pipe arrangement 31,41 is compared low with respect to the endurance of moment of torsion with copper pipe arrangement 32,42.Therefore, moment of torsion was applied to line part at 35,45 o'clock, compared aluminium pipe arrangement 31,41 easy deformation with copper pipe arrangement 32,42.Therefore, the ratio copper pipe arrangement 32 of the aluminium pipe arrangement 31,41 through making easy deformation, more than 42, can reduce the windup-degree of the unit length of aluminium pipe arrangement 31,41.Thus, aluminium pipe arrangement 31,41 parts of line part 35,45 can flexibly be tackled with respect to the moment of torsion of giving.That is,, their breakage (fracture and fragmentation etc.) can be prevented, the leakage of cold-producing medium and the generation of refrigerant pressure loss can be prevented in aluminium pipe arrangement 31,41 parts of line part 35,45.
On the other hand, copper pipe arrangement 32,42 is compared high with respect to the endurance of moment of torsion with aluminium pipe arrangement 31,41, so the deflection of copper pipe arrangement 32,42 parts of line part 35,45 is few.Therefore, in copper pipe arrangement 32,42 parts of line part 35,45, their breakage (fracture and fragmentation etc.) is few.
In addition, for example, at line part 35,45, the length L 1 of aluminium pipe arrangement 31,41, L3 than the short situation of length L 2, the L4 of copper pipe arrangement 32,42 under, at the aluminium pipe arrangement 31,41 than copper pipe arrangement 32,42 easy deformation, it is big that the windup-degree of unit length becomes.Therefore, the leakage of the cold-producing medium that breakage causes and the refrigerant pressure loss that the pipe arrangement fragmentation causes may take place in aluminium pipe arrangement 31,41 parts in the portion of hanging down 33,43.
In addition, for the windup-degree of the unit length that makes aluminium pipe arrangement 31,41 diminishes, also consider to improve the relative intensity of aluminium pipe arrangement 31,41, but this method is preferred hardly with respect to copper pipe arrangement 32,42.For example, under the situation of the wall thickness that thickens aluminium pipe arrangement 31,41, the increase of the pressure loss in the aluminium pipe arrangement 31,41 reduces freeze cycle efficient, and perhaps the cost of indoor heat converter 10 rises.On the contrary, under the situation of the wall thickness attenuation that makes copper pipe arrangement 32,42, withstand voltage not enough with corrosion allowance.
More than, in the indoor heat converter 10 of this embodiment, the line part 35 in the portion that hangs down 33 of gas pipe arrangement 30 makes the length L 1 of aluminium pipe arrangement 31 longer than the length L 2 of copper pipe arrangement 32.In addition, the line part 45 in the portion that hangs down 43 of liquid pipe arrangement 40 makes the length L 3 of aluminium pipe arrangement 41 longer than the length L 4 of copper pipe arrangement 42.Therefore, in the portion of hanging down 33,43, can reduce the windup-degree of unit length of the aluminium pipe arrangement 31,41 of easy deformation.Therefore, indoor set 100 is installed or during telephone-moving, can be prevented the breakage of connecting pipings 20 (gas pipe arrangement 30 and liquid pipe arrangement 40).
Here,,, thereby the torsion angle till breakage can be increased, the breakage of connecting pipings 20 (gas pipe arrangement 30 and liquid pipe arrangement 40) can be further prevented through the good material of selection ductility from aluminum or aluminum alloy as the material of aluminium pipe arrangement 31,41.Equally,,, the torsion angle till breakage can be increased, the breakage of connecting pipings 20 (gas pipe arrangement 30 and liquid pipe arrangement 40) can be further prevented through from copper or copper alloy, selecting the good material of ductility as the material of copper pipe arrangement 32,42.And, in this embodiment,, select the good A3003-0 of ductility as the material of aluminium pipe arrangement 31,41.In addition, as the material of copper pipe arrangement 32,42, use the good C1220-0 of ductility.According to JISH4000, A3003-0 has the rate elongation more than 23% in the tabular test film of thickness 0.8mm～1.3mm.In addition, according to JISH3100, C1220-0 has the rate elongation more than 35% in the tabular test film of thickness 0.3mm～30mm.
In addition, in this embodiment, the example that heat exchanger of the present invention is carried at indoor set 100 is illustrated, but can certainly heat exchanger of the present invention be carried at outdoor heat converter.That is, in this embodiment, to heat exchanger of the present invention is illustrated as the example that indoor heat converter 10 uses, but can certainly heat exchanger of the present invention be used as outdoor heat converter.
In addition, in this embodiment, used heat-transfer pipe 16 both sides of the heat-transfer pipe 12 and the flat tubulose of pipe shape, but also can only use any side's heat-transfer pipe for indoor heat converter 10.In addition, in this embodiment, be that example has been explained the present invention with fin tube heat exchanger (indoor heat converter 10), but can certainly be in various heat exchangers embodiment of the present invention.That is, for heat exchanger with the heat-transfer pipe that forms by aluminum or aluminum alloy, through connecting gas pipe arrangement 30 and the liquid pipe arrangement of explaining in this embodiment 40, can embodiment of the present invention.
Claims (4)
1. heat exchanger has the heat-transfer pipe that is formed by aluminum or aluminum alloy and makes the cold-producing medium that flows into from said heat-transfer pipe or connecting pipings that the cold-producing medium that flows into to said heat-transfer pipe passed through, and said heat exchanger is equipped on air conditioner, it is characterized in that,
Said connecting pipings has the liquid pipe arrangement that gas pipe arrangement that gas refrigerant passes through and liquid refrigerant or gas-liquid two-phase system cryogen pass through,
First refrigerant piping that said gas pipe arrangement and said liquid pipe arrangement are formed by aluminum or aluminum alloy reaches second refrigerant piping that is formed by copper or copper alloy and is constituted by connection at connecting portion,
This first refrigerant piping is connected in said heat-transfer pipe, and is formed with the portion that hangs down that hangs down from said heat-transfer pipe,
Said connecting portion is disposed at the straight line portion of the said portion that hangs down,
Straight line portion in the said portion that hangs down, said first refrigerant piping is longer than said second refrigerant piping.
2. heat exchanger as claimed in claim 1 is characterized in that,
Said gas pipe arrangement covers the spring of the distortion that suppresses said gas pipe arrangement in the bottom of the said portion that hangs down,
Under the state that the air conditioner that is equipped with this heat exchanger has been set up,
Said connecting portion is configured in the top than the upper end of said spring.
3. heat exchanger as claimed in claim 2 is characterized in that,
Under the state that the air conditioner that is equipped with this heat exchanger has been set up,
The said connecting portion of said liquid line is configured in the top than the upper end of the said spring that covers said flue.
4. an air conditioner is characterized in that, has carried each described heat exchanger in the claim 1～3.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-185948 | 2010-08-23 | ||
| JP2010185948A JP5388969B2 (en) | 2010-08-23 | 2010-08-23 | Heat exchanger and air conditioner equipped with this heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102374592A true CN102374592A (en) | 2012-03-14 |
| CN102374592B CN102374592B (en) | 2014-05-07 |
Family
ID=44658635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110241862.XA Active CN102374592B (en) | 2010-08-23 | 2011-08-23 | Heat exchanger and air conditioner on which this heat exchanger is mounted |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2423609B1 (en) |
| JP (1) | JP5388969B2 (en) |
| CN (1) | CN102374592B (en) |
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| CN105917173A (en) * | 2014-01-30 | 2016-08-31 | 大金工业株式会社 | Air conditioner indoor unit |
| CN109099521A (en) * | 2017-06-21 | 2018-12-28 | 日立江森自控空调有限公司 | Refrigerating plant |
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| JP6079619B2 (en) * | 2013-12-27 | 2017-02-15 | ダイキン工業株式会社 | Air conditioning indoor unit |
| JP6107724B2 (en) * | 2014-03-26 | 2017-04-05 | 株式会社富士通ゼネラル | Piping connection structure |
| CN105539803A (en) * | 2015-12-14 | 2016-05-04 | 浙江海洋学院 | Frostless air conditioner refrigeration device for ship by virtue of afterheat reproduction |
| CN107028432B (en) * | 2016-02-03 | 2021-06-15 | 开利公司 | Refrigeration showcase system |
| JP2017172885A (en) * | 2016-03-24 | 2017-09-28 | 株式会社富士通ゼネラル | Auxiliary connection pipe and air conditioner |
| US11549041B2 (en) | 2017-12-18 | 2023-01-10 | Daikin Industries, Ltd. | Composition containing refrigerant, use of said composition, refrigerator having said composition, and method for operating said refrigerator |
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| US11365335B2 (en) | 2017-12-18 | 2022-06-21 | Daikin Industries, Ltd. | Composition comprising refrigerant, use thereof, refrigerating machine having same, and method for operating said refrigerating machine |
| US11906207B2 (en) | 2017-12-18 | 2024-02-20 | Daikin Industries, Ltd. | Refrigeration apparatus |
| WO2019123898A1 (en) * | 2017-12-18 | 2019-06-27 | ダイキン工業株式会社 | Refrigeration machine oil for refrigerant or refrigerant composition, method for using refrigeration machine oil, and use of refrigeration machine oil |
| US11549695B2 (en) | 2017-12-18 | 2023-01-10 | Daikin Industries, Ltd. | Heat exchange unit |
| BR112020011145A2 (en) | 2017-12-18 | 2020-11-17 | Daikin Industries, Ltd. | refrigeration cycle appliance |
| US11441802B2 (en) | 2017-12-18 | 2022-09-13 | Daikin Industries, Ltd. | Air conditioning apparatus |
| US11506425B2 (en) | 2017-12-18 | 2022-11-22 | Daikin Industries, Ltd. | Refrigeration cycle apparatus |
| US11493244B2 (en) | 2017-12-18 | 2022-11-08 | Daikin Industries, Ltd. | Air-conditioning unit |
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| JP6865809B2 (en) * | 2019-12-24 | 2021-04-28 | 三菱電機株式会社 | Air conditioner |
| JP7133076B1 (en) * | 2021-09-30 | 2022-09-07 | ダイキン工業株式会社 | Heat exchange units and air conditioners |
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Also Published As
| Publication number | Publication date |
|---|---|
| EP2423609A3 (en) | 2016-11-09 |
| JP5388969B2 (en) | 2014-01-15 |
| EP2423609B1 (en) | 2020-04-15 |
| JP2012042169A (en) | 2012-03-01 |
| EP2423609A2 (en) | 2012-02-29 |
| CN102374592B (en) | 2014-05-07 |
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