CN100523660C - Air conditioner - Google Patents
Air conditioner Download PDFInfo
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- CN100523660C CN100523660C CNB2004100785889A CN200410078588A CN100523660C CN 100523660 C CN100523660 C CN 100523660C CN B2004100785889 A CNB2004100785889 A CN B2004100785889A CN 200410078588 A CN200410078588 A CN 200410078588A CN 100523660 C CN100523660 C CN 100523660C
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- Prior art keywords
- cold
- producing medium
- conditioner
- air
- heat
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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
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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
- 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
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/007—Compression machines, plants or systems with reversible cycle not otherwise provided for three pipes connecting the outdoor side to the indoor side with multiple indoor units
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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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
- F25B2313/0231—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units with simultaneous cooling and heating
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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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
- F25B2313/0233—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in parallel arrangements
- F25B2313/02331—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in parallel arrangements during cooling
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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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
- F25B2313/0233—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in parallel arrangements
- F25B2313/02334—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in parallel arrangements during heating
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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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/025—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units
- F25B2313/0253—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units in parallel arrangements
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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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/13—Economisers
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
Air conditioner including an outdoor unit installed in outdoor having a compressor, an outdoor heat exchanger, an indoor unit installed in indoor having an indoor heat exchanger, a distributor for guiding refrigerant from the outdoor unit to the indoor unit proper to an operation condition, and refrigerant passed through the indoor unit to the outdoor unit, again, and a subcooling device for subcooling the refrigerant passed through a heat exchange process at the outdoor heat exchanger under an isobaric condition, and guiding the subcooled refrigerant to the distributor, thereby improving an air conditioning capability.
Description
Technical field
The present invention relates to a kind of air-conditioner, relate in particular to a kind of air-conditioner that improves air handling capacity.
The present invention requires the right in the Korean Patent of on January 27th, 2004 application P2004-0005045 number, with it with reference to quoting.
Background technology
Usually, the air-conditioner cooling or the heating interior space, for example residence space, hotel, library or office, it is equipped with compressor and heat exchanger, is used for the cold-producing medium of the cooling interior space with circulation.
Air-conditioner develops towards multi type air-conditioner, and it can cool off and heat simultaneously, realizes being had family with same mode of operation cooling or heating, is used to keep more comfortable indoor environment and the influence that can not be subjected to extraneous weather or environment.
The multi type air-conditioner of this prior art has a plurality of indoor units, and each indoor units is installed in each chamber and is connected to an outdoor unit, is used for being had family with cooling or heating mode cooling or heating.
Yet, when the multi type air-conditioner of prior art is applied to following situation, for example have the high constructure of labyrinth and the wherein position and the purposes variation of chamber, the pipeline that leads to indoor units from outdoor unit becomes very long, causes the pressure decline of the cold-producing medium that imports indoor units into and the air conditioning decrease in efficiency of multi type air-conditioner.
Summary of the invention
Therefore, the present invention relates to a kind of having avoided basically because one or more problems that limitation and shortcoming caused of prior art.
The technical problem that the present invention will solve provides a kind of air-conditioner that improves air handling capacity that has.
Another technical problem that the present invention will solve provides a kind of can minimizing owing to the long air-conditioner that causes the pressure loss of the cold-producing medium that flows in the refrigerant tubing and guaranteed to import into the supercooled state (subcooling state) of the cold-producing medium in the expansion gear of the refrigerant tubing of guiding cold-producing medium.
Other feature and advantage of the present invention will be enumerated out in the following description, and the one of ordinary skilled in the art can partly understand after the content studying hereinafter, perhaps can learn from the practice of the present invention.By by the structure of specifically noting in writing specification and its claims and the accompanying drawing, can realize and obtain purpose of the present invention and other advantage.
In order to realize these purposes and other advantage, according to purpose of the present invention, as institute's enforcements here and broadness description, air-conditioner comprises: be installed in an outdoor outdoor unit, have a compressor and an outdoor heat converter; Be installed in an indoor indoor units, have an indoor heat converter; One distributor, being used to adapt to condition of work will be directed to indoor units from the cold-producing medium of off-premises station group, and will be directed to outdoor unit once more by the cold-producing medium of indoor units; With a supercooling apparatus, it is cold to be used to make cold-producing medium through the heat exchanging process at outdoor heat converter place to descend in isobaric condition, and will cross cold cold-producing medium and be directed to distributor.
Supercooling apparatus makes the part by the cold-producing medium of the heat exchanging process at outdoor heat converter place expand, and make cold-producing medium dilation with remain not swell refrigeration agent and carry out heat exchange.
Supercooling apparatus comprises: one crosses cool-heat-exchanger, is used to make the dilation of cold-producing medium and remains not swell refrigeration agent generation heat exchange; One first connecting pipe has the expansion gear of a part of the cold-producing medium of the heat exchanging process by the outdoor heat converter place that is used to expand, is used for swell refrigeration agent was directed to cool-heat-exchanger; One second connecting pipe is used to guide not swell refrigeration agent to crossing cool-heat-exchanger; One the 3rd connecting pipe, be used to guide passed through cool-heat-exchanger the agent of not swell refrigeration to distributor; With one the 4th connecting pipe, be used to guide the agent of swell refrigeration of having passed through cool-heat-exchanger to the refrigerant tubing that is connected with the suction side of compressor.
Crossing cool-heat-exchanger comprises: one first flow duct, and the one end is connected to second connecting pipe, and the other end is connected to the 3rd connecting pipe, is used for flowing of not swell refrigeration agent; With one second flow duct, the one end is connected to first connecting pipe, and the other end is connected to the 4th connecting pipe, is used for carrying out heat exchange and flowing of swell refrigeration agent with first flow duct.
Cross cool-heat-exchanger and have double-sleeve structure.Second flow duct longitudinally is arranged on the inside of first flow duct.
The flow direction of cold-producing medium that flows through second flow duct is opposite with the flow direction of the cold-producing medium that flows through first flow duct, and the flow direction of cold-producing medium that perhaps flows through second flow duct is identical with the flow direction of the cold-producing medium that flows through first flow duct.
First flow duct longitudinally is arranged on the inside of second flow duct.
Cross the length that cool-heat-exchanger has 1m～2.5m.
Cross cool-heat-exchanger and also comprise the heat exchange section on the inwall of being positioned at that is used to increase heat exchange area.
Heat exchange section is from the inwall inwardly protruding of interior flow duct.In more detail, in heat exchange section is arranged on the inwall of flow duct along the circumferential direction.
Heat exchange section is arranged on the inwall of interior flow duct, along the longitudinal, and perhaps twist.
Expansion gear is an electronic expansion device.
Air-conditioner also comprises the gatherer on the refrigerant tubing that is positioned at the suction side that is connected to compressor, is used for isolating gaseous refrigerant from liquid refrigerant.
The 4th connecting pipe is connected to the refrigerant tubing that links to each other with the refrigerant inlet of gatherer.
Supercooling apparatus is arranged on the pre-position of the inside of outdoor unit.
Outdoor unit also comprises a reversing arrangement, and being used to adapt to condition of work will optionally be converted to outdoor heat converter or distributor from the flow direction of the cold-producing medium of compressor.
The invention provides a kind of multi type air-conditioner, it make some chambers be operated under the refrigerating mode, and other chamber is operated under the heating mode, has improved the installation free degree of multi type air-conditioner, and has kept the supercooled state of cold-producing medium according to room environmental.
Be appreciated that content is described in front of the present invention and the content that elaborates hereinafter is schematic and indicative, be used to provide further specifying for the cited invention of claim.
Description of drawings
Accompanying drawing shows embodiments of the invention, and it provides of the present invention further understands, and is come in to constitute a part of the present invention by merging, and itself and specification one are used from sets forth principle of the present invention.
In the accompanying drawings:
Fig. 1 shows the system diagram of air-conditioner in accordance with a preferred embodiment of the present invention;
Fig. 2 shows the system diagram of the air-conditioner of another preferred embodiment according to the present invention;
Fig. 3 shows the system diagram of a preferred embodiment of the supercooling apparatus of air-conditioner configuration in Fig. 1 or 2;
Fig. 4 shows the perspective view of the preferred embodiment crossing cool-heat-exchanger in the supercooling apparatus of Fig. 3;
Fig. 5 shows the perspective view of another preferred embodiment of crossing cool-heat-exchanger in the supercooling apparatus of Fig. 3;
Fig. 6 shows the P-h figure of the kind of refrigeration cycle of multi type air-conditioner of the present invention.
The specific embodiment
In detail with reference to the preferred embodiments of the present invention, the example of embodiment is shown in the drawings now.In describing embodiment, same parts is used same names and Reference numeral, and omission is repeated in this description.
In order to understand the present invention better, set forth the effect of air-conditioner below.Temperature, humidity, motion and the cleannes of air-conditioner control air are so that adapt to the purposes that is used for the specific region, for example such as the interior space at residence space, office, hotel etc.
In cooling down operation, air-conditioner from the low pressure refrigerant of indoor absorption heat and heat is discharged into outdoor air comes cooling chamber, and in heating operation, comes heating clamber by the operation opposite with said process by compression.
Fig. 1 shows the system diagram of air-conditioner in accordance with a preferred embodiment of the present invention, and it is the concurrent heating/cooling multi type air-conditioner of while cooling chamber.
With reference to figure 1, concurrent heating/cooling multi type air-conditioner comprises: outdoor unit 10, distributor 20 and a plurality of indoor units 30a, 30b and 30c in each chamber.
Each of indoor units 30a, 30b and 30c comprises indoor heat converter 31a, 31b or 31c and expansion gear 32a, 32b or 32c, and expansion gear 32a, 32b or 32c are used for making under refrigerating mode the cold-producing medium that imports indoor heat converter into to expand into predetermined state.
About this aspect, distributor 20 comprises: with the as many first cold-producing medium lateral 21a of the quantity of indoor units, 21b and 21c, 21 branches come out from first refrigerant tubing, and are connected with 32c with indoor units expansion gear 32a, 32b respectively; The second cold-producing medium lateral 22a, 22b and 22c come out from the second refrigerant tubing branch, and are connected with 31c with indoor heat converter 31a, 31b respectively; And the 3rd cold-producing medium lateral 23a, 23 and 23c, 23 branches come out from the 3rd refrigerant tubing, and are connected with 31c with indoor heat converter 31a, 31b respectively.The second cold-producing medium lateral 22a, 22b and 22c have the first electronics shut-off valve 26a, 26b and 26c respectively, and the 3rd cold-producing medium lateral 23a, 23 and 23c have the second electronics shut-off valve 27a, 27b and 27c respectively.
According to said system, when indoor units is operated in heating mode following time, the first electronics shut-off valve that is positioned on the second cold-producing medium lateral that is connected to indoor units is opened, and the second electronics shut-off valve that is positioned on the 3rd cold-producing medium lateral that is connected to indoor units cuts out, and feasible cold-producing medium from compressor 11 flows to indoor heat converter through second refrigerant tubing 22 and the second cold-producing medium lateral that is connected to indoor units.When indoor units is operated in refrigerating mode following time, be positioned at be operated in refrigerating mode under the second cold-producing medium lateral that is connected of indoor units on the first electronics shut-off valve close, and the second electronics shut-off valve that is positioned on the 3rd cold-producing medium lateral that is connected to indoor units is opened, and the feasible cold-producing medium of having introduced by the first cold-producing medium lateral that is connected with indoor units and having expanded at indoor units expansion gear place imports in the 3rd refrigerant tubing 23 with the 3rd cold-producing medium lateral that is connected with indoor units through the indoor heat converter of indoor units.
And distributor 20 comprises: be connected the bypass duct 25 between second refrigerant tubing 22 and the 3rd refrigerant tubing 23; Be transformed into the electronic switch valve 25a of low pressure refrigerant with the high-pressure refrigerant that on bypass duct, is used for to be stuck in second refrigerant tubing, 22 places, under all indoor units all are operated in situation under the refrigerating mode, be used to prevent because the stagnation of high-pressure refrigerant causes cold-producing medium liquefaction.
Simultaneously, concurrent heating/cooling multi type air-conditioner also comprises the supercooling apparatus 100 that is positioned on first refrigerant tubing 21, and it is connected between outdoor heat converter 12 and the distributor 20.
Supercooling apparatus 100 makes the cold-producing medium by the heat exchanging process at outdoor heat converter place descend cold in isobaric condition, and be directed to distributor, promptly, part of refrigerant from outdoor heat converter 12 is expanded, the cold-producing medium that has expanded with flow out from outdoor heat converter, flow to the residual refrigerant generation heat exchange of distributor 20 along first refrigerant tubing 21, and import in the 3rd refrigerant tubing 23 between the suction side that is connected distributor 20 and compressor 11.The back describes supercooling apparatus 100 in detail with reference to figure 3～5.
Except said system, preferably, distributor 20 also comprises the auxiliary supercooling apparatus 24 that is engaged in the coaxitron between the distributor 20 and first refrigerant tubing 21.The cold-producing medium that auxiliary supercooling apparatus 24 is guaranteed to import among indoor heat converter 31a, 31b and the 31c by the mode of heat exchange between the cold-producing medium is cold excessively.
As another embodiment of air-conditioner of the present invention, will this cooling selectivity multi type air-conditioner be described with reference to figure 2.Fig. 2 shows the system diagram of the air-conditioner of another preferred embodiment according to the present invention.
This cooling selectivity multi type air-conditioner comprises: outdoor unit 50, distributor 60 and a plurality of indoor units 70a, 70b and 70c in each chamber are used to make all indoor units to be operated under refrigerating mode or the heating mode.
Each of indoor units comprises indoor heat converter 71a, 71b or 71c and expansion gear 72a, 72b or 72c, and expansion gear 72a, 72b or 72c are used for making under refrigerating mode the cold-producing medium that imports indoor heat converter into to expand into predetermined state.
About this aspect, distributor 60 comprises: with the as many first cold-producing medium lateral 61a of the quantity of indoor units 70a, 70b and 70c, 61b and 61c, 61 branches come out from first refrigerant tubing, and are connected with 72c with indoor units expansion gear 72a, 72b respectively; The second cold-producing medium lateral 62a, 62b and 62c, 62 branches come out from second refrigerant tubing, and are connected with 71c with indoor heat converter 71a, the 71b of indoor units respectively; And an electronics shut-off valve 64, be positioned at second refrigerant tubing 62 and be branched off into position before the second cold-producing medium lateral.The 3rd refrigerant tubing 63 is connected with the other end of second refrigerant tubing 62.
According to said system, as all indoor units 70a, 70b and 70c are operated in refrigerating mode following time, the electronics shut-off valve 64 that is positioned on the second cold-producing medium lateral 62 cuts out, feasible cold-producing medium from compressor 51 is connected to first refrigerant tubing 61 and indoor units 70a by reversing arrangement 55 processes, the first cold-producing medium lateral 61a of 70b and 70c, 61b and 61c flow to expansion gear 72a, 72b and 72c, and at expansion gear 72a, expand in 72b and 72c place, and through indoor heat converter 71a, 71b and 71c, the second cold-producing medium lateral 62a, 62b and 62c, and the 3rd refrigerant tubing 63 is drawn in the compressor 51.
As all indoor units 70a, 70b and 70c are operated in heating mode following time, the electronics shut-off valve 64 that is positioned at the second cold-producing medium lateral 62 is opened, feasible cold-producing medium from compressor 51 passes through reversing arrangement 55 process and second refrigerant tubing 62 and indoor units 70a, the second cold-producing medium lateral 62a that 70b is connected with 70c, 62b and 62c flow to indoor heat converter 71a, 71b and 71c, and at indoor heat converter 71a, heat exchange takes place in 71b and 71c place, and through expansion gear 72a, 72b and 72c, the first cold-producing medium lateral 61a, 61b and 61c, and first refrigerant tubing 61 is drawn in the compressor 51.
Simultaneously, heating/cooling selectivity multi type air-conditioner also comprises the supercooling apparatus 100 that is positioned on first refrigerant tubing 61, and it is connected between outdoor heat converter 52 and the distributor 60.
Describe supercooling apparatus 100 systems in detail below with reference to Fig. 3～5, it is applied to concurrent or selectivity heating/cooling multi type air-conditioner.
In more detail, supercooling apparatus 100 comprises: cross cool-heat-exchanger 110, be used for the part of swell refrigeration agent and remain heat exchange between the not swell refrigeration agent part; First connecting pipe 131 has the expansion gear 120 of the part cold-producing medium of the heat exchanging process by the outdoor heat converter place that is used to expand, and is connected to first refrigerant tubing 21 or 61, is used for swell refrigeration agent was directed to cool-heat-exchanger 110; Second connecting pipe 132 is used for swell refrigeration agent not was directed to cool-heat-exchanger 110; The 3rd connecting pipe 133 is used for and will has passed through heat exchange and cross not swell refrigeration agent directed dispenser 20 or 60 after cold crossing cool-heat-exchanger 110 places; And the 4th connecting pipe 134, the 3rd refrigerant tubing that the swell refrigeration agent guiding that is used for passing through after cool-heat-exchanger and the heat exchange is connected with the suction side of compressor 11 or 51.
Cross cool-heat-exchanger 110 and have flow passage, it is designed to the cold-producing medium of mulitpath introducing from outdoor heat converter 12 or 52.About this respect, preferably, cross cool-heat-exchanger 110 and comprise: first flow duct 111, have an end that is connected with second connecting pipe 132, with the other end that is connected with the 3rd connecting pipe 133, be used for the high temperature refrigerant that do not expand that flows; And second flow duct 112, have an end that is connected with first connecting pipe 131, with the other end that is connected with the 4th connecting pipe 134, be used for carrying out heat exchange with first flow duct 111, and the low temperature swell refrigeration agent of flowing.
Preferably, cross cool-heat-exchanger 110 and have dual pipeline configuration: interior flow duct and at the outer mobile pipeline in the interior flow duct outside is used to improve the heat exchanger effectiveness of cold-producing medium.
In the present invention, preferably, interior flow duct is second flow duct 112, with the outer pipeline that flows be first flow duct 111, be used at the interior flow duct 112 mobile low-temperature refrigerants that expanded, flow in the flow duct 111 outside from outdoor heat converter 12 or 52 high temperature refrigerants of discharging, to prevent on the surface of crossing cool-heat-exchanger 110, forming dew.Certainly, clearly, the interior flow duct that the outer mobile pipeline of mistake cool-heat-exchanger 110 can be connected to first connecting pipe 131 and mistake cool-heat-exchanger 110 can be connected to second connecting pipe 132.Yet, in this case, because therefore the cold-producing medium of the lower temperature that flowing in the flow duct outside forms dew easily on the surface of crossing cool-heat-exchanger 110.
Cross the variation that cool-heat-exchanger 110 can have structure, as long as this structure makes two flow duct 111 contact with 112.As an example, cross cool-heat-exchanger and can have the structure of second flow duct being twined several times first flow duct.And preferably, two flow duct 111 and 112 are made by the material with thermal conductive resin.
In order to prevent that liquid refrigerant from entering compressor, preferably, the 4th connecting pipe 134 is connected to the 3rd refrigerant tubing 23 that links to each other with the inlet of gatherer 14 or 54 and 63 precalculated position.
Certainly, obviously the 4th connecting pipe 134 can be connected to compressor 11 or 51 and gatherer 14 or 54 between the 3rd refrigerant tubing 23.Because cold-producing medium expand into gaseous state in fact, even cold-producing medium imports compressor 11 or 51 into, also can not damage the stability of compressor 11 or 51 very bigly.
Preferably, first to fourth pipeline 131,132,133 and 134 was connected to cool-heat-exchanger 110, make that the flow direction of mobile high temperature refrigerant is opposite with the flow direction of low temperature swell refrigeration agent in first flow duct 111, be used to strengthen heat exchanger effectiveness.Certainly, the design condition that depended on cool-heat-exchanger 100, possiblely be, first to fourth pipeline 131,132,133 and 134 was connected to cool-heat-exchanger 110, made that the flow direction of mobile high temperature refrigerant is identical with the flow direction of low temperature swell refrigeration agent in first flow duct 111.
Preferably, the interior flow duct of crossing cool-heat-exchanger has heat exchange section 113a or 113b, is used to increase heat exchange area.
In more detail, heat exchange section 113a or 113b are from interior flow duct (second flow duct 112) inwardly protruding, the flow resistance that is used to prevent the cold-producing medium that flows along first flow duct 111 increases, and increases the heat exchange area of the cold-producing medium of second flow duct 112 of flowing through.
Certainly, heat exchange section 113a or 113b can all be formed on the inside/outside wall of interior flow duct, or all are formed on the inner/outer of interior flow duct, and are formed on the inwall of the outer pipeline that flows.
The above-mentioned form of heat exchange section 113a or 113b only is some embodiment, and obviously, can there be many variations in heat exchange section 113a or 113b.
Preferably, the hot device for cooling 100 with cool-heat-exchanger 110 is installed in the inside of outdoor unit 10 or 50.In more detail, first refrigerant tubing 21 between supercooling apparatus 100 and outdoor heat converter 12 or 52 or 61 length are done shortlyer, feasible cold-producing medium heat exchange from outdoor heat converter 12 or 52, be used for preventing cold-producing medium demi-inflation at first refrigerant tubing 21, and sub-cooled liquid refrigerant is supplied to distributor 20, is used to minimize the pressure of cold-producing medium at first refrigerant tubing 21 or 61 places and descends.
Preferably, cross the length that cool-heat-exchanger 110 has 1～2.5m, be used for expansion gear 120 places on first connecting pipe 131 low-temperature refrigerant that expands and the not swell refrigeration agent of flowing through second connecting pipe in enough heat exchanges of crossing cool-heat-exchanger 110 places.
Since offer concurrent heating/cooling multi type air-conditioner and offer selectivity heating/cooling multi type air-conditioner supercooling apparatus 100 operation much at one, below with reference to concurrent heating/cooling multi type air-conditioner operating principle of the present invention is described, in most air-conditioners, indoor units 30b and 30c are under the refrigerating mode, in the minority air-conditioner, indoor units 30a is under the heating mode.
At first, when concurrent heating/when the cooling multi type air-conditioner entered in the work, cold-producing medium was compressed to high pressure and discharges from compressor at compressor 11 places, import outdoor heat converter 12 into by reversing arrangement 15.When outdoor fan 13 rotations, high-pressure refrigerant and outdoor air heat exchange and condensation are discharged into first refrigerant tubing 21 that is connected with supercooling apparatus 100 then.
A part of importing the cold-producing medium in the supercooling apparatus 100 along first refrigerant tubing 21 into expand into low-temperature refrigerant by the expansion gear 120 on first connecting pipe 131, and flow through second flow duct 112, and import first flow duct 111 into by second connecting pipe 132 along the remainder that first refrigerant tubing 21 imports the cold-producing medium in the supercooling apparatus 100 into, so that heat exchange mutually makes the cold-producing medium that flows through first flow duct 111 descend cold at isopiestic state.
Then, cold-producing medium from first flow duct 111 of crossing cool-heat-exchanger 110 imports distributor 20 through the 3rd connecting pipe 133 and first refrigerant tubing 21 into unswollen state, be imported into indoor units 30b and 30c through the first cold-producing medium lateral 21b and the 21c that is connected with the indoor units of under refrigerating mode, working,, and drawn in the compressor 11 cooling off each chamber by expansion process and heat exchanging process through the 3rd cold-producing medium lateral 23b and 23c, the 3rd refrigerant tubing 23 and gatherer 14.
Cold-producing medium from second flow duct 112 of crossing cool-heat-exchanger 110 is imported in the gatherer 14 by the guiding of the 4th connecting pipe 134 and the 3rd connecting pipe 23, is separated into gaseous refrigerant and liquid refrigerant, and is drawn in the compressor 11.
Simultaneously, part of refrigerant from compressor 11 is not directly imported in the distributor 20 by outdoor heat converter, through be operated in heating mode under the second cold-producing medium lateral 22a that is connected of indoor units 30a imported into indoor units 30a, by heat exchanging process with heating clamber, and through be operated in heating mode under the first cold-producing medium lateral 21a that is connected of indoor units, combine with the cold-producing medium that flows through first refrigerant tubing.
Fig. 6 shows the P-h figure of the kind of refrigeration cycle of multi type air-conditioner of the present invention.
Air-conditioner of the present invention has following advantages.
At first, even the length of first refrigerant tubing between outdoor unit and the indoor units is big, because The supercooling apparatus of cold cold-producing medium was provided, thereby the pressure drop of cold-producing medium is minimized and has improved system The cryogen performance.
Secondly, crossed the cold anticyclone cold-producing medium owing to introduced, can minimize when cold-producing medium in indoor units The noise that the expansion gear place produces when expanding.
The 3rd, import the minimum pressure drop of cold-producing medium of indoor units into so that compressor offers air-conditioner Capacity minimizes, the volume of realizing saving manufacturing cost and minimizing air-conditioner.
Those skilled in the art are to be understood that and can carry out in the present invention various modifications and variations, and Do not break away from the spirit or scope of the present invention. So, suppose that these modifications and variations fall into claims With their range of equivalent, then wish of the present invention covers the modifications and variations of this invention.
Claims (18)
1. air-conditioner comprises:
Be installed in an outdoor outdoor unit, have a compressor and an outdoor heat converter;
Be installed in an indoor indoor units, have an indoor heat converter;
One distributor, being used to adapt to condition of work will be directed to indoor units from the cold-producing medium of off-premises station group, and will be directed to outdoor unit once more by the cold-producing medium of indoor units; With
One supercooling apparatus, it is cold to be used to make cold-producing medium through the heat exchanging process at outdoor heat converter place to descend in isobaric condition, and will cross cold cold-producing medium and be directed to distributor;
This supercooling apparatus comprises: one crosses cool-heat-exchanger, this is crossed cool-heat-exchanger and has double-sleeve structure, the heat exchange section that is used to increase heat exchange area is positioned at inner tube wall, this supercooling apparatus makes the part by the cold-producing medium of the heat exchanging process at outdoor heat converter place expand, and make cold-producing medium dilation with remain not swell refrigeration agent and carry out heat exchange.
2. air-conditioner as claimed in claim 1, wherein this supercooling apparatus also comprises:
One first connecting pipe has the expansion gear of a part of the cold-producing medium of the heat exchanging process by the outdoor heat converter place that is used to expand, is used for swell refrigeration agent was directed to cool-heat-exchanger,
One second connecting pipe is used to guide not swell refrigeration agent and extremely crosses cool-heat-exchanger,
One the 3rd connecting pipe, be used to guide the not swell refrigeration agent of having passed through cool-heat-exchanger to distributor and
One the 4th connecting pipe is used to guide the agent of swell refrigeration of having passed through cool-heat-exchanger to the refrigerant tubing that is connected with the suction side of compressor.
3. air-conditioner as claimed in claim 2, wherein be somebody's turn to do cool-heat-exchanger and comprised:
One first flow duct, the one end is connected to second connecting pipe, and the other end is connected to the 3rd connecting pipe, be used for not swell refrigeration agent flow and
One second flow duct, the one end is connected to first connecting pipe, and the other end is connected to the 4th connecting pipe, is used for carrying out heat exchange and flowing of swell refrigeration agent with first flow duct.
4. air-conditioner as claimed in claim 3, wherein this second flow duct longitudinally is arranged on the inside of first flow duct.
5. air-conditioner as claimed in claim 4, the flow direction of cold-producing medium that wherein flows through second flow duct is opposite with the flow direction of the cold-producing medium that flows through first flow duct.
6. air-conditioner as claimed in claim 4, the flow direction of cold-producing medium that wherein flows through second flow duct is identical with the flow direction of the cold-producing medium that flows through first flow duct.
7. air-conditioner as claimed in claim 3, wherein first flow duct longitudinally is arranged on the inside of second flow duct.
8. air-conditioner as claimed in claim 3 is wherein crossed cool-heat-exchanger and is had the length of 1m～2.5m.
9. air-conditioner as claimed in claim 3, wherein heat exchange section is from the inwall inwardly protruding of interior flow duct.
10. air-conditioner as claimed in claim 9, wherein heat exchange section along the circumferential direction is provided with on the inwall of interior flow duct.
11. air-conditioner as claimed in claim 9, wherein heat exchange section is arranged on the inwall of interior flow duct along the flow direction of cold-producing medium.
12. air-conditioner as claimed in claim 9, wherein heat exchange section is arranged on the inwall of interior flow duct with spirality.
13. air-conditioner as claimed in claim 2, wherein expansion gear is an electronic expansion device.
14. air-conditioner as claimed in claim 2 wherein also comprises the gatherer on the refrigerant tubing that is positioned at the suction side that is connected to compressor, is used for isolating gaseous refrigerant from liquid refrigerant.
15. air-conditioner as claimed in claim 14, wherein the 4th connecting pipe is connected to the refrigerant tubing that links to each other with the refrigerant inlet of gatherer.
16. air-conditioner as claimed in claim 1, wherein supercooling apparatus is arranged on the pre-position of the inside of outdoor unit.
17. air-conditioner as claimed in claim 1, wherein outdoor unit also comprises a reversing arrangement, and being used to adapt to condition of work will optionally be converted to outdoor heat converter or distributor from the flow direction of the cold-producing medium of compressor.
18. air-conditioner as claimed in claim 2 wherein also comprises the auxiliary supercooling apparatus of coaxitron structure, guarantees that the cold-producing medium that imports into the indoor heat converter from supercooling apparatus is cold excessively.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR5045/04 | 2004-01-27 | ||
| KR5045/2004 | 2004-01-27 | ||
| KR10-2004-0005045A KR100539570B1 (en) | 2004-01-27 | 2004-01-27 | multi airconditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1648558A CN1648558A (en) | 2005-08-03 |
| CN100523660C true CN100523660C (en) | 2009-08-05 |
Family
ID=34651516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100785889A Expired - Fee Related CN100523660C (en) | 2004-01-27 | 2004-09-15 | Air conditioner |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20050160763A1 (en) |
| EP (1) | EP1559969B1 (en) |
| JP (1) | JP2005214613A (en) |
| KR (1) | KR100539570B1 (en) |
| CN (1) | CN100523660C (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100761285B1 (en) * | 2004-12-10 | 2007-09-27 | 엘지전자 주식회사 | Air conditioner |
| KR100688171B1 (en) * | 2004-12-29 | 2007-03-02 | 엘지전자 주식회사 | Multiple air conditioner and refrigerant withdrawing method |
| KR101333984B1 (en) * | 2006-10-17 | 2013-11-27 | 엘지전자 주식회사 | Air conditioner |
| JP5263522B2 (en) * | 2008-12-11 | 2013-08-14 | 株式会社富士通ゼネラル | Refrigeration equipment |
| KR101645183B1 (en) * | 2010-03-04 | 2016-08-03 | 엘지전자 주식회사 | Multi type air conditioner |
| KR101910658B1 (en) * | 2011-07-18 | 2018-10-23 | 삼성전자주식회사 | Multi type air conditioner |
| JP5916330B2 (en) * | 2011-10-04 | 2016-05-11 | 株式会社Ｕａｃｊ銅管 | Heat exchanger tube for supercooler and supercooler using the same |
| KR101877986B1 (en) * | 2011-10-27 | 2018-07-12 | 엘지전자 주식회사 | Air conditioner |
| CN103615838B (en) * | 2013-12-05 | 2016-04-13 | 中国扬子集团滁州扬子空调器有限公司 | The cooling/heating system that internal-external heat exchanger device volumetric ratio is variable |
| JP5955488B1 (en) * | 2015-01-07 | 2016-07-20 | 三菱電機株式会社 | Refrigerant distributor manufacturing method, refrigerant distributor manufacturing apparatus, refrigerant distributor, heat exchanger, and air conditioner |
| JP2019163866A (en) * | 2018-03-19 | 2019-09-26 | パナソニックＩｐマネジメント株式会社 | Refrigeration cycle device and hot water generating device including the same |
| CN109357429A (en) * | 2018-09-21 | 2019-02-19 | 青岛海尔空调电子有限公司 | A kind of heat-reclamation multi-compressors cool-warm switching device, multi-connected machine and control method |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2005214613A (en) | 2005-08-11 |
| EP1559969A1 (en) | 2005-08-03 |
| EP1559969B1 (en) | 2012-01-18 |
| KR20050077139A (en) | 2005-08-01 |
| US20050160763A1 (en) | 2005-07-28 |
| CN1648558A (en) | 2005-08-03 |
| KR100539570B1 (en) | 2005-12-29 |
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