CN100344922C - Overcold condenser - Google Patents
Overcold condenser Download PDFInfo
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- CN100344922C CN100344922C CNB2004101005583A CN200410100558A CN100344922C CN 100344922 C CN100344922 C CN 100344922C CN B2004101005583 A CNB2004101005583 A CN B2004101005583A CN 200410100558 A CN200410100558 A CN 200410100558A CN 100344922 C CN100344922 C CN 100344922C
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- Prior art keywords
- heat
- core
- transfer pipe
- refrigerant
- condensation
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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
- F25B39/00—Evaporators; Condensers
- F25B39/04—Condensers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00321—Heat exchangers for air-conditioning devices
- B60H1/00328—Heat exchangers for air-conditioning devices of the liquid-air type
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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
- F28D1/053—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 straight
- F28D1/0535—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 straight the conduits having a non-circular cross-section
- F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
- F28D1/05391—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators
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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
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/02—Tubular elements of cross-section which is non-circular
- F28F1/022—Tubular elements of cross-section which is non-circular with multiple channels
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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
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/025—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like elements
- F28F3/027—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like elements with openings, e.g. louvered corrugated fins; Assemblies of corrugated strips
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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
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/04—Details of condensers
- F25B2339/044—Condensers with an integrated receiver
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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
- F25B40/00—Subcoolers, desuperheaters or superheaters
- F25B40/02—Subcoolers
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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
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
- F28D2021/0084—Condensers
Abstract
The condenser has a heat exchanger core (6) divided into a coolant condensation core (7) and a sub-cooling core (8). Heat transfer pipes for the core (7) are integrated to an internal fin. The heat transfer pipes for the core (8) have an interior that is separated by partitions integrated with the pipes, into flow passages in direction of air flow direction.
Description
Technical field
The present invention relates to a kind of Overcold condenser, relate in particular to a kind of Overcold condenser that is suitable in the air handling system such as vehicle, it can reduce total flow resistance of whole condenser in the advantage that keeps Overcold condenser to bring.
Background technology
Known a kind of known Overcold condenser, wherein several heat-transfer pipes that extend parallel to each other are connected with a pair of collector, the core, heat exchanger of condenser be divided into make condensation of refrigerant the condensation of refrigerant core and make by condensation of refrigerant core condensed refrigerant cold excessively cross cold core, when this condenser and liquid reservoir are combined as a whole (for example JP-A-2002-31436), this condenser can make whole refrigeration system volume little and also inexpensive in, show excellent refrigerant condensation ability.In such Overcold condenser, by allowing the condensation of refrigerant core adopt the structure of cold-producing medium one way, make that this structure of condenser is simplified, volume also diminished (for example JP-A-2002-31436).
But, even the condensation of refrigerant core has adopted the structure of cold-producing medium one way, for the target condensation function that keeps the condensation of refrigerant core and the target of crossing cold core are crossed cold function, must with in the collector and the relation between the heat-transfer pipe internal resistance be controlled at (for example JP-A-2000-111274) in the specific scope.In JP-A-2002-31436 or JP-A-2000-111274, in order to ensure this relation between the resistance, the condensation of refrigerant core has adopted identical structure with the heat-transfer pipe of crossing cold core, has also adopted especially inner fins to be set to form the heat-transfer pipe that complex three-dimensional flows in pipe in heat-transfer pipe.For example in Overcold condenser 101 as shown in figure 11, a pair of collector 102,103 is connected by the several heat-transfer pipes 104 that extend parallel to each other, between adjacent heat-transfer pipe 104, be provided with rippled fin 105, core, heat exchanger 106 comprises will import the condensation of refrigerant core 107 of the condensation of refrigerant the collectors 102 from refrigerant inlet 109, and make by condensation of refrigerant core 107 condensed refrigerant and the cold-producing medium that imports from the bottom of collector 103 further cooling cross cold core 108.Crossing cold cold-producing medium discharges so that condensation of refrigerant core 107 adopts the structure of cold-producing medium one way at air-flow direction A from exporting 110.In such Overcold condenser 101, be built-in with inner fins 111 in pipe, to form the same structure of cold-producing medium Three-dimensional Flow, be used in simultaneously in the heat-transfer pipe 104 of the heat-transfer pipe 104 of condensation of refrigerant core 107 and mistake cold core 108.
But, when adopting the heat-transfer pipe that in pipe, forms Three-dimensional Flow, especially since cold core be the liquid regions of the liquid refrigerant of the condensation that is used to circulate, it is big that flow resistance herein becomes, thereby the flow resistance of whole Overcold condenser has increased.If the flow resistance of whole condenser has increased, comprise that the load of the whole refrigeration system of condenser will increase, especially the energy consumption of compressor has increased.For instance, in the refrigeration system of vehicle air conditioner,, just must make the flow resistance of above-mentioned whole condenser reduce as much as possible owing to the energy consumption of compressor need be reduced as much as possible.
In order to reach the common purpose of the flow resistance that reduced cold core, JP-A-10-9714 has disclosed following a kind of structure, promptly in intersection fin-type air-cooled condenser that adopts HFC (hydrogen fluorochlorohydrocarbon) cold-producing medium that is mixed by R404A, R507 and R407C or similar condenser (adopting the intersection fin-type air-cooled condenser of U type pipe as the heat-transfer pipe of circulation heat exchange medium), the diameter of crossing heat-transfer pipe in the cool region is bigger than the diameter of heat-transfer pipe in the condenser zone.But such condenser is a kind of dissimilar condenser fully, and has adopted more than a kind of cold-producing medium, and therefore such structure in fact is not suitable for solving problem to be solved by this invention.
Summary of the invention
Therefore, the Overcold condenser that the purpose of this invention is to provide a kind of architecture advances, in Overcold condenser, the several heat-transfer pipes that extend parallel to each other are connected with a pair of collector, the core, heat exchanger of described condenser be divided into make condensation of refrigerant the condensation of refrigerant core and make by described condensation of refrigerant core condensed refrigerant cold excessively cross cold core, described condensation of refrigerant core forms the structure of cold-producing medium one way, when not influencing the advantage of being brought by the one way structure of condensation of refrigerant core, this condenser reduces the flow resistance of whole condenser widely.Realize purpose of the present invention thus, promptly when the present invention is used for vehicle air conditioner, can keep bringing by one way for example in being installed in vehicle the time can freely arrange the advantage of refrigerant inlet pipe in, the energy consumption of reduction compressor also improves overall system efficiency.
To achieve these goals, Overcold condenser according to the present invention comprises a pair of collector and the several heat-transfer pipes that interconnect and extend parallel to each other with described a pair of collector, the core, heat exchanger of described condenser be divided into make condensation of refrigerant the condensation of refrigerant core and make by described condensation of refrigerant core condensed refrigerant cold excessively cross cold core, described condensation of refrigerant core forms the structure of cold-producing medium one way, it is characterized in that, the heat-transfer pipe of described condensation of refrigerant core and the described heat-transfer pipe of crossing cold core form the heat-transfer pipe that differs from one another, be built-in with inner fins in pipe, forming the heat-transfer pipe of cold-producing medium Three-dimensional Flow so that the heat-transfer pipe of described condensation of refrigerant core forms, and the described heat-transfer pipe of crossing cold core forms by the partition wall that forms with this pipe and will manage inside is separated into a plurality of flow channels along air-flow direction heat-transfer pipe (first kind of situation of the present invention).
In addition, Overcold condenser according to the present invention comprises a pair of collector and the several heat-transfer pipes that interconnect and extend parallel to each other with described a pair of collector, the core, heat exchanger of described condenser be divided into make condensation of refrigerant the condensation of refrigerant core and make by described condensation of refrigerant core condensed refrigerant cold excessively cross cold core, described condensation of refrigerant core adopts the structure of cold-producing medium one way, it is characterized in that, the heat-transfer pipe of described condensation of refrigerant core and the described heat-transfer pipe of crossing cold core form the heat-transfer pipe that differs from one another, be built-in with inner fins in pipe, forming the heat-transfer pipe of cold-producing medium Three-dimensional Flow so that the heat-transfer pipe of described condensation of refrigerant core forms, and the described heat-transfer pipe of crossing cold core forms by inner fins built-in in this pipe and will manage inside is separated into a plurality of flow channels along the mobile direction of air heat-transfer pipe.(second kind of situation of the present invention).
In addition, Overcold condenser according to the present invention comprises a pair of collector and the several heat-transfer pipes that interconnect and extend parallel to each other with described a pair of collector, the core, heat exchanger of described condenser be divided into make condensation of refrigerant the condensation of refrigerant core and make by described condensation of refrigerant core condensed refrigerant cold excessively cross cold core, described condensation of refrigerant core forms the structure of cold-producing medium one way, it is characterized in that, the heat-transfer pipe of described condensation of refrigerant core and the described heat-transfer pipe of crossing cold core form following such configuration, wherein the inside of each heat-transfer pipe is separated into a plurality of flow channels along air-flow direction, and the heat-transfer pipe of described condensation of refrigerant core and the described heat-transfer pipe of crossing cold core form the heat-transfer pipe that differs from one another, so that the pressure loss for single heat-transfer pipe in the described heat-transfer pipe of crossing cold core is set the pressure loss for single heat-transfer pipe in the heat-transfer pipe that is lower than described condensation of refrigerant core under identical flox condition.(the third situation of the present invention).
In the third situation of the present invention, adopt such structure, wherein at least one heat-transfer pipe in the described heat-transfer pipe of condensation of refrigerant core and the described described heat-transfer pipe of crossing cold core forms will manage by the partition wall that forms with this pipe and innerly is separated into the heat-transfer pipe of a plurality of flow channels along air-flow direction, and perhaps at least one heat-transfer pipe in the described heat-transfer pipe of condensation of refrigerant core and the described described heat-transfer pipe of crossing cold core forms by being built in the interior inner fins of this pipe and will manage inside is separated into a plurality of flow channels along air-flow direction heat-transfer pipe.
In addition, a kind of Overcold condenser of Overcold condenser according to the present invention, it comprises a pair of collector and the several heat-transfer pipes that interconnect and extend parallel to each other with described a pair of collector, the core, heat exchanger of described condenser be divided into make condensation of refrigerant the condensation of refrigerant core and make by described condensation of refrigerant core condensed refrigerant cold excessively cross cold core, described condensation of refrigerant core forms the structure of cold-producing medium one way, it is characterized in that, the described flow resistance of crossing cold core set for total flow resistance of accounting for whole described condenser 1/2 or still less.(the 4th kind of situation of the present invention).The 4th kind of situation can be used with the third situation together in conjunction with above-mentioned of the present invention first, second.
The heat-transfer pipe and the heat-transfer pipe of crossing cold core of the condensation of refrigerant core of same structure in conventional art, have been adopted, in Overcold condenser according to the present invention, adopted different structures, and the pressure loss of crossing in the cold core in the every heat-transfer pipe is littler than the pressure loss in every heat-transfer pipe in the condensation of refrigerant core.So the flow resistance of crossing in the cold core is more much smaller than the flow resistance of crossing in the cold core in traditional Overcold condenser, thereby greatly reduce the flow resistance of whole condenser.The purpose that reduces flow resistance is, with cross in the cold core flow resistance by traditional account for whole condenser flow resistance 2/3 or drop to account for whole condenser flow resistance 1/2 or lower.Thereby especially by reducing in such Overcold condenser of flow resistance that flow resistance in the cold core reduces whole condenser, when condenser is used for refrigeration system, when keeping the integrally-built advantage of cold core, the energy consumption that reduces compressor becomes possibility.
Therefore, in Overcold condenser according to the present invention, when keeping the advantage of bringing by condensation of refrigerant core one way structure, when can make condenser structure simply and freely arrange the inlet tube of cold-producing medium in the time of for example in being installed in vehicle, the energy consumption of compressor when condenser is used for vehicle air conditioner can also be reduced, and overall system efficiency can be improved.
In conjunction with the preferred embodiments of the present invention purpose of the present invention, characteristics and advantage are further set forth below with reference to accompanying drawings.
Description of drawings
Referring now to accompanying drawing specific embodiments of the invention are described, but described embodiment provides as just example, and the present invention is not provided constraints.
Fig. 1 is the perspective view according to the Overcold condenser of first embodiment of the invention.
Fig. 2 is the local enlarged perspective of heat-transfer pipe of the condensation of refrigerant core of Overcold condenser shown in Figure 1.
Fig. 3 is the local enlarged perspective of the heat-transfer pipe of crossing cold core of Overcold condenser shown in Figure 1.
Fig. 4 is the curve map that concerns between the flow resistance of reflection cold-producing medium encapsulation amount and traditional Overcold condenser shown in Figure 11.
Fig. 5 is the curve map that concerns between the flow resistance of reflection cold-producing medium encapsulation amount and Overcold condenser shown in Figure 1.
Fig. 6 is reflected in according to conventional art with according to the curve map that concerns between face velocity and the heat dispersion in the product of the present invention.
Fig. 7 is reflected in according to conventional art with according to the curve map that concerns between cold-producing medium circular flow and the flow resistance in the product of the present invention.
Fig. 8 is according to the fragmentary, perspective view of crossing the heat-transfer pipe of cold core in the Overcold condenser of second embodiment of the invention.
Fig. 9 is the fragmentary, perspective view according to the heat-transfer pipe of condensation of refrigerant core in the Overcold condenser of third embodiment of the invention.
Figure 10 is according to the fragmentary, perspective view of crossing the heat-transfer pipe of cold core in the Overcold condenser of third embodiment of the invention.
Figure 11 is the perspective view of traditional Overcold condenser.
The specific embodiment
Fig. 1 to shown in Figure 3 be Overcold condenser according to the first embodiment of the present invention, corresponding with aforesaid first kind of situation of the present invention.In Fig. 1, Overcold condenser 1 comprises a pair of collector 2,3, and the several heat-transfer pipes 4 with a pair of collector 2,3 is connected and extends parallel to each other are arranged on the rippled fin 5 between each adjacent heat-transfer pipe 4.Core, heat exchanger 6 is divided into condensation of refrigerant core 7 and crosses cold core 8.7 condensations of condensation of refrigerant core import cold-producing medium the collectors 2 from inlet tube 9, cross cold core 8 and make by condensation of refrigerant core 7 condensed refrigerant and the cold-producing medium that imports from the bottom of collector 3 coldly excessively, cross cold cold-producing medium and flow out from refrigerant outlet pipe 10.That is to say that condensation of refrigerant core 7 adopts the structure of cold-producing medium one way, collector 2 is separated into upper and lower two parts by next door 11, and the upper and lower of collector 3 inside communicates, so that liquid refrigerant can be encapsulated in wherein.In collector 3, be provided with one and have the communicate gripper shoe 12 of part of center, gripper shoe 12 can support the parts that insert in the collector 3, for example also places a structure member of drier or filter screen (not shown) in the structure that keeps vertical connection.
As shown in Figure 2, in Overcold condenser 1 according to first embodiment, the heat-transfer pipe 4 of condensation of refrigerant core 7 has in fact adopted identical structure with heat-transfer pipe 4a shown in Figure 11, and promptly inner fins 14 is inserted in the body 13 to form the structure of cold-producing medium Three-dimensional Flow in body 13.As shown in Figure 3, the heat-transfer pipe 4 of crossing cold core 8 has adopted by manage inside is separated into the heat-transfer pipe 4b of a plurality of small flow passages 16 along air-flow direction structure with the integrally formed partition wall 15 of pipe.Like this, the heat-transfer pipe 4a of condensation of refrigerant core 7 is the heat-transfer pipe that has adopted different internal structures with the heat-transfer pipe 4b that crosses cold core 8.
In above-mentioned Overcold condenser 1, although heat-transfer pipe 4b inside is separated into a plurality of small flow passages 16, because each flow channel 16 extends on identical pipe bearing of trend as the crow flies, so compare with being built-in with the heat-transfer pipe 4a of inner fins 14 with the condensation of refrigerant core 7 of formation Three-dimensional Flow, the every interior flow resistance (pressure loss) of heat-transfer pipe becomes very little.Therefore, the whole flow resistance of crossing cold core 8 has reduced widely, and the flow resistance of whole Overcold condenser 1 has also reduced widely.
Fig. 4 and Fig. 5 for example understand traditional condenser product and according to the condenser of first embodiment of the invention described above in the comparable situation aspect the flow resistance (pressure reduction between condenser inlet and the outlet).For example, as shown in Figure 4, in traditional condenser shown in Figure 11, when cold-producing medium encapsulation amount reduces, although ratio has small variation, account for more than 2/3 or 2/3 of whole condenser flow resistance always cross the flow resistance of cold core, and the flow resistance of whole condenser is bigger.On the contrary, as shown in Figure 5, in Overcold condenser 1 according to the invention described above first embodiment, even when cold-producing medium encapsulation quantitative change, the flow resistance of crossing cold core is reduced to and always accounts for below 1/2 or 1/2 of whole condenser flow resistance, and compare with flow resistance shown in Figure 4, the flow resistance of whole condenser has diminished.
In addition, to show with the wind speed that passes Overcold condenser be the situation of the heat dispersion that changes of face velocity to Fig. 6.As shown in Figure 6, shown in Figure 1 almost do not have difference according to condenser of the present invention and traditional condenser shown in Figure 11 on heat dispersion.
In addition, Fig. 7 shows the situation of the flow resistance of the whole condenser that changes with the cold-producing medium circular flow.As shown in Figure 7, compare with the flow resistance of traditional condenser shown in Figure 11, the flow resistance according to condenser of the present invention shown in Figure 1 greatly reduces.
That is to say, as shown in Figure 1 according to Overcold condenser 1 of the present invention, guaranteeing that heat exchange performance is the gratifying while of heat dispersion, can keep the advantage of the one way structure of condensation of refrigerant core 7.For example when being installed in the vehicle, it can make the inlet tube of little, the simple in structure and free layout cold-producing medium of condensation vessel volume.When Overcold condenser 1 is used for the refrigeration system of car air-conditioner,, can reduces the energy consumption of compressor greatly and improve overall system efficiency by reducing the flow resistance of whole condenser greatly.
Fig. 8 shows according to the heat-transfer pipe of crossing cold core in the Overcold condenser of second embodiment of the invention.The structure of other parts is the structure of the heat-transfer pipe 4a of condensation of refrigerant core 7 especially, and is in fact identical with the structure shown in Fig. 1 and Fig. 2.Second embodiment is corresponding with aforesaid second kind of situation of the present invention, in a second embodiment, cross heat-transfer pipe 21 in the cold core 8 and adopted will manage by the built-in fin 22 of managing 21 inside and innerly be separated into the structure of a plurality of flow channels along air-flow direction A, each small flow passage 23 of being separated by inner fins 22 extends on the direction that pipe extends in parallel to each other as the crow flies.
In such Overcold condenser, the heat-transfer pipe 4a of condensation of refrigerant core 7 has adopted different structures with the heat-transfer pipe 21 of crossing cold core 8.Be built-in with the heat-transfer pipe 4a of inner fins 14 and compare with the condensation of refrigerant core 7 that forms Three-dimensional Flow, inside is separated into the heat-transfer pipe 21 of crossing cold core 8 of a plurality of small flow passages 23 that extend as the crow flies, and its every interior flow resistance (pressure loss) of heat-transfer pipe becomes very little.As a result, the whole flow resistance of crossing cold core 8 has reduced widely, thereby the flow resistance of whole Overcold condenser 1 has also reduced widely.So, just can show with Fig. 5 to Fig. 7 in similar performance.
Fig. 9 and Figure 10 show the heat-transfer pipe according to the Overcold condenser of third embodiment of the invention.Shown in Figure 9 is the heat-transfer pipe 31 of condensation of refrigerant core 7, and shown in Figure 10 was the heat-transfer pipe 32 of cold core 8.The structure of other parts and structure shown in Figure 1 are basic identical.The 3rd embodiment is corresponding with aforesaid the third situation of the present invention, and the heat-transfer pipe 31 of condensation of refrigerant core 7 has all adopted with the heat-transfer pipe 32 of crossing cold core 8 will manage the inner structure that is separated into a plurality of flow channels along air-flow direction A.The structure of heat- transfer pipe 31,32 is inequality again, so that the pressure loss in the every heat-transfer pipe 32 of mistake cold core 8 is littler than the pressure loss in the every heat-transfer pipe 31 of condensation of refrigerant core 7.In addition, in the 3rd embodiment, in the heat- transfer pipe 31,32 at least one or two have adopted to manage and innerly have been separated into a plurality of small flow passages 35,36 along air-flow direction A, and each small flow passage 35,36 direction of extending at pipe structure of straight extension in parallel to each other.In this embodiment, although the number of the small flow passage 35,36 on every pipe is identical, but the sectional area of the sectional area ratio small flow passage 35 of small flow passage 36 is big, and therefore the flow resistance in the every heat-transfer pipe 32 of mistake cold core 8 is littler than the flow resistance in the every heat-transfer pipe 31 of condensation of refrigerant core 7.
In above-mentioned Overcold condenser, the heat-transfer pipe 31 of condensation of refrigerant core 7 is different with the structure of the heat-transfer pipe 32 of crossing cold core 8, compare with the heat-transfer pipe 31 of the less condensation of refrigerant core 7 of flow area, the flow resistance (pressure loss) in the bigger every heat-transfer pipe crossing cold core 8 32 of flow area is much smaller.As a result, the whole flow resistance of crossing cold core 8 has reduced widely, thereby the flow resistance of whole Overcold condenser 1 has also reduced widely.So, just can show with Fig. 5 to Fig. 7 in similar performance.
In the above-described embodiment, although adopted by heat- transfer pipe 31,32 inside all being separated into the structure of a plurality of small flow passages 35,36 with the integrally formed partition wall 33,34 of body, yet at least a heat-transfer pipe also can adopt structure as shown in Figure 8, promptly will manage the inner structure that is separated into a plurality of flow channels along air-flow direction by built-in inner fins.
In addition, in each above-mentioned embodiment, preferably made flow resistance in the cold core 8 account for whole condenser flow resistance 1/2 or still less.We expect, no matter the structure of condensation of refrigerant core 7 and the heat-transfer pipe of crossing cold core 8 how, can both satisfy the relation between the above-mentioned flow resistance, so just can reduce the flow resistance of whole Overcold condenser 1 greatly, that is to say, by satisfying the above-mentioned relation on flow resistance, just can realize the 4th kind of situation of not described aforementioned of the present invention here.
The present invention can be used in any Overcold condenser with following structure, be that the many heat-transfer pipes that extend parallel to each other are connected with a pair of collector, heat exchanger core is divided into the condensation of refrigerant core and crosses cold core, the condensation of refrigerant core adopts cold-producing medium one way structure, and the present invention especially is suitable in the refrigeration system of vehicle air conditioning.
Claims (8)
1. Overcold condenser, it comprises a pair of collector and the several heat-transfer pipes that interconnect and extend parallel to each other with described a pair of collector, the core, heat exchanger of described condenser be divided into make condensation of refrigerant the condensation of refrigerant core and make by described condensation of refrigerant core condensed refrigerant cold excessively cross cold core, described condensation of refrigerant core forms the structure of cold-producing medium one way, it is characterized in that, the heat-transfer pipe of described condensation of refrigerant core and the described heat-transfer pipe of crossing cold core form the heat-transfer pipe that differs from one another, be built-in with inner fins in pipe, forming the heat-transfer pipe of cold-producing medium Three-dimensional Flow so that the heat-transfer pipe of described condensation of refrigerant core forms, and the described heat-transfer pipe of crossing cold core forms by the partition wall that forms with this pipe and will manage inside is separated into a plurality of flow channels along air-flow direction heat-transfer pipe.
2. Overcold condenser according to claim 1, the described flow resistance of crossing cold core set for total flow resistance of accounting for whole described condenser 1/2 or still less.
3. Overcold condenser, it comprises a pair of collector and the several heat-transfer pipes that interconnect and extend parallel to each other with described a pair of collector, the core, heat exchanger of described condenser be divided into make condensation of refrigerant the condensation of refrigerant core and make by described condensation of refrigerant core condensed refrigerant cold excessively cross cold core, described condensation of refrigerant core adopts the structure of cold-producing medium one way, it is characterized in that, the heat-transfer pipe of described condensation of refrigerant core and the described heat-transfer pipe of crossing cold core form the heat-transfer pipe that differs from one another, be built-in with inner fins in pipe, forming the heat-transfer pipe of cold-producing medium Three-dimensional Flow so that the heat-transfer pipe of described condensation of refrigerant core forms, and the described heat-transfer pipe of crossing cold core forms by inner fins built-in in this pipe and will manage inside is separated into a plurality of flow channels along the mobile direction of air heat-transfer pipe.
4. Overcold condenser according to claim 3, the described flow resistance of crossing cold core set for total flow resistance of accounting for whole described condenser 1/2 or still less.
5. Overcold condenser, it comprises a pair of collector and the several heat-transfer pipes that interconnect and extend parallel to each other with described a pair of collector, the core, heat exchanger of described condenser be divided into make condensation of refrigerant the condensation of refrigerant core and make by described condensation of refrigerant core condensed refrigerant cold excessively cross cold core, described condensation of refrigerant core forms the structure of cold-producing medium one way, it is characterized in that, the heat-transfer pipe of described condensation of refrigerant core and the described heat-transfer pipe of crossing cold core form following such configuration, wherein the inside of each heat-transfer pipe is separated into a plurality of flow channels along air-flow direction, and the heat-transfer pipe of described condensation of refrigerant core and the described heat-transfer pipe of crossing cold core form the heat-transfer pipe that differs from one another, so that the pressure loss of the single heat-transfer pipe in the described heat-transfer pipe of crossing cold core is set the pressure loss of the single heat-transfer pipe in the heat-transfer pipe that is lower than described condensation of refrigerant core under identical flox condition.
6. Overcold condenser according to claim 5, at least one heat-transfer pipe in the described heat-transfer pipe of described condensation of refrigerant core and the described described heat-transfer pipe of crossing cold core form by the partition wall that forms with this pipe will manage inside is separated into a plurality of flow channels along air-flow direction heat-transfer pipe.
7. Overcold condenser according to claim 5, at least one heat-transfer pipe in the described heat-transfer pipe of the described heat-transfer pipe of described condensation of refrigerant core and described cold core excessively forms by the inner fins that is built in this pipe will manage the inner heat-transfer pipe that is separated into a plurality of flow channels along air-flow direction.
8. Overcold condenser according to claim 5, the described flow resistance of crossing cold core set for total flow resistance of accounting for whole described condenser 1/2 or still less.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP337345/2003 | 2003-09-29 | ||
| JP337345/03 | 2003-09-29 | ||
| JP2003337345A JP2005106329A (en) | 2003-09-29 | 2003-09-29 | Subcool type condenser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1616905A CN1616905A (en) | 2005-05-18 |
| CN100344922C true CN100344922C (en) | 2007-10-24 |
Family
ID=34308997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004101005583A Expired - Fee Related CN100344922C (en) | 2003-09-29 | 2004-09-29 | Overcold condenser |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2005106329A (en) |
| CN (1) | CN100344922C (en) |
| DE (1) | DE102004047304A1 (en) |
| FR (1) | FR2860285B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103339457A (en) * | 2011-01-21 | 2013-10-02 | 大金工业株式会社 | Heat exchanger and air conditioner |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2010104252A (en) * | 2007-07-09 | 2011-08-20 | Эй-ХИТ ЭЛЛАЙД ХИТ ИКСЧЕНДЖ ТЕКНОЛОДЖИ АГ (DE) | HEAT EXCHANGE SYSTEM WITH A HEAT EXCHANGE DEVICE, AND ALSO A METHOD FOR PRODUCING A HEAT EXCHANGE SYSTEM |
| CN101672553B (en) * | 2009-09-25 | 2012-03-28 | 华南理工大学 | Parallel stream heat exchanger integrated with microchannel and outer fin |
| CN103851838B (en) * | 2012-11-30 | 2016-06-15 | 苏州必信空调有限公司 | Board-like integration system cryogen heat-recovery circulating system |
| CN103225934B (en) * | 2013-04-09 | 2015-11-11 | 顺德职业技术学院 | Become profile of tooth internal thread enhanced tube condenser |
| CN104567509B (en) * | 2015-01-23 | 2016-06-22 | 杭州沈氏节能科技股份有限公司 | A kind of fin-type heat exchange unit and manufacture method and the heat exchanger containing this unit |
| CN105318612A (en) * | 2015-12-05 | 2016-02-10 | 广东志高空调有限公司 | Thermoelectric cooling system for super-cooling section of air-conditioner condenser |
| US10563890B2 (en) * | 2017-05-26 | 2020-02-18 | Denso International America, Inc. | Modulator for sub-cool condenser |
| CN113701544B (en) * | 2020-05-22 | 2024-01-26 | 北京机械设备研究所 | Flat tube radiator and processing method of flat tube of radiator |
| WO2021255790A1 (en) * | 2020-06-15 | 2021-12-23 | 三菱電機株式会社 | Refrigeration cycle device |
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|---|---|---|---|---|
| JPH08178568A (en) * | 1994-12-26 | 1996-07-12 | Showa Alum Corp | Metal tube material for heat exchanger and manufacture thereof |
| US6189607B1 (en) * | 1998-07-31 | 2001-02-20 | Kazuki Hosoya | Heat exchanger |
| US6470703B2 (en) * | 2000-05-09 | 2002-10-29 | Sanden Corporation | Subcooling-type condenser |
| JP2003021432A (en) * | 2001-07-09 | 2003-01-24 | Zexel Valeo Climate Control Corp | Condenser |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2268260A (en) * | 1992-06-24 | 1994-01-05 | Llanelli Radiators Ltd | Heat exchange tubes formed from a unitary portion of sheet or strip material |
-
2003
- 2003-09-29 JP JP2003337345A patent/JP2005106329A/en active Pending
-
2004
- 2004-09-24 FR FR0410126A patent/FR2860285B1/en not_active Expired - Fee Related
- 2004-09-28 DE DE200410047304 patent/DE102004047304A1/en not_active Withdrawn
- 2004-09-29 CN CNB2004101005583A patent/CN100344922C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08178568A (en) * | 1994-12-26 | 1996-07-12 | Showa Alum Corp | Metal tube material for heat exchanger and manufacture thereof |
| US6189607B1 (en) * | 1998-07-31 | 2001-02-20 | Kazuki Hosoya | Heat exchanger |
| US6470703B2 (en) * | 2000-05-09 | 2002-10-29 | Sanden Corporation | Subcooling-type condenser |
| JP2003021432A (en) * | 2001-07-09 | 2003-01-24 | Zexel Valeo Climate Control Corp | Condenser |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103339457A (en) * | 2011-01-21 | 2013-10-02 | 大金工业株式会社 | Heat exchanger and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2860285B1 (en) | 2009-05-01 |
| CN1616905A (en) | 2005-05-18 |
| FR2860285A1 (en) | 2005-04-01 |
| DE102004047304A1 (en) | 2005-06-16 |
| JP2005106329A (en) | 2005-04-21 |
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