CN103256748A - Air conditioner - Google Patents
Air conditioner Download PDFInfo
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- CN103256748A CN103256748A CN2012105992521A CN201210599252A CN103256748A CN 103256748 A CN103256748 A CN 103256748A CN 2012105992521 A CN2012105992521 A CN 2012105992521A CN 201210599252 A CN201210599252 A CN 201210599252A CN 103256748 A CN103256748 A CN 103256748A
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- Prior art keywords
- heat exchanger
- outdoor heat
- cross valve
- valve
- compressor
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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
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
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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
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
- F25B47/022—Defrosting cycles hot gas defrosting
- F25B47/025—Defrosting cycles hot gas defrosting by reversing the 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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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
- 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
- F25B41/24—Arrangement of shut-off valves for disconnecting a part of the refrigerant cycle, e.g. an outdoor part
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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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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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
- F25B2313/005—Outdoor unit expansion valves
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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
- F25B2313/006—Compression machines, plants or systems with reversible cycle not otherwise provided for two 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
- F25B2313/021—Indoor unit or outdoor unit with auxiliary heat exchanger not forming part of the indoor or outdoor unit
- F25B2313/0211—Indoor unit or outdoor unit with auxiliary heat exchanger not forming part of the indoor or outdoor unit the auxiliary heat exchanger being only used during defrosting
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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
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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
- F25B2313/0251—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units being defrosted alternately
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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
- F25B2313/0252—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units with bypasses
- F25B2313/02522—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units with bypasses during defrosting
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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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
- F25B2313/02742—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using two four-way valves
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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
- F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
- F25B2313/02743—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using three four-way valves
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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
- F25B2313/029—Control issues
- F25B2313/0292—Control issues related to reversing valves
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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
- F25B2313/031—Sensor arrangements
- F25B2313/0315—Temperature sensors near the outdoor heat exchanger
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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
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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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/19—Pressures
- F25B2700/193—Pressures of the compressor
- F25B2700/1931—Discharge pressures
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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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/19—Pressures
- F25B2700/193—Pressures of the compressor
- F25B2700/1933—Suction pressures
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The invention discloses an air conditioner. The air conditioner controls capacity of an outdoor heat exhanger unit and is not equipped with a switch valve with high pressure loss, preventing a refrigerant from accummulating in the outdoor heat exchanger and keeping reliability of a compressor or refrigeration cycle. The air conditioner comprises a first expansion valve on a liquid pipeline of a first outdoor heat exchanger; a second expansion valve on a liquid pipeline of a second outdoor heat exchanger; a first connecting pipeline that enables a sunction pipeline to be connected to a port of a first four-way valve and is connected with the sunction port of the compressor and the outdoor heat exhanger unit; a second connecting pipeline that enables a sunction pipeline to be connected to a port of a second four-way valve; and a check valve that is disposed on the second connecting pipeline to only allow the refrigerant to flow from the second four-way valve to the sunction pipeline.
Description
Technical field
A plurality of embodiment of the present disclosure relates to air regulator, and it comprises that the capacity of outdoor heat exchanger unit is controlled by a plurality of outdoor heat exchangers are connected the outdoor heat exchanger unit of embarking on journey and constituting when hanging down load running.
Background technology
For example, when air regulator is hanging down under the load running condition---namely during the heating operation or the refrigerating operaton under low room air regulating load and the low outdoor temperature under low room air regulating load and high outdoor temperature condition---during operation, the evaporation of outdoor heat exchanger or condensation ability excessively increase, and cause debatable operation.More specifically, if the evaporability of outdoor heat exchanger excessively increases during the heating operation under the low load running condition, then the pressure at expulsion of compressor also excessively increases and surpasses its upper limit, and this causes the unexpected shutdown of compressor by holding circuit.On the other hand, if the condensation ability of outdoor heat exchanger excessively increases during the refrigerating operaton under the low load running condition, then the pressure at expulsion of compressor reduces, and the pressure of inspiration(Pi) with respect to compressor only has nuance, this causes unsuitable compression ratio, and the feasible reliability that is difficult to keep compressor.
Therefore, proposed a kind of air regulator, wherein a plurality of outdoor heat exchangers are linked to be and arrange to constitute an outdoor heat exchanger unit, make according to service condition the capacity controllable of outdoor heat exchanger unit.
For example, Japan Patent discloses H59-180251 number and has disclosed a kind of air regulator, wherein the electronic switch valve is arranged on front side and the rear side of each outdoor heat exchanger that constitutes the outdoor heat exchanger unit, and under low load running condition, each electronic valve is turned off to reduce the capacity of outdoor heat exchanger unit.
Yet, because a plurality of electronic switch valves are arranged on front side and the rear side of each outdoor heat exchanger, so the conventional air adjuster of Gou Jianing can meet with the high pressure loss in the flow process of cold-producing medium as described above, heat or the refrigeration performance deterioration so make.Yet it is unfavorable on cost to use large scale electronics switch valve to reduce the pressure loss.In addition; though for example can consider by front side or the rear side at each outdoor heat exchanger only the number that the electronic switch valve reduces the electronic switch valve to be installed; the gathering of cold-producing medium in outdoor heat exchanger when but this can cause outdoor heat exchanger to be shut down, thereby the flow velocity of cold-producing medium and refrigeration or heating performance are worsened.
Summary of the invention
One side of the present disclosure provides a kind of air regulator; its can external heat exchanger unit, control room capacity; and do not use the switch valve with high pressure loss; the gathering in outdoor heat exchanger of cold-producing medium when outdoor heat exchanger is shut down can be prevented, the reliability of compressor or kind of refrigeration cycle can be kept.
Additional aspect of the present disclosure partly will be illustrated in ensuing explanation, partly will be obvious because of this explanation, perhaps can be understood by practice of the present disclosure.
According to an aspect of the present disclosure, air regulator comprises via compressor, the cross valve unit, the ring-type of outdoor heat exchanger unit and indoor heat exchanger unit is connected and the refrigerant loop that constitutes, wherein the outdoor heat exchanger unit is divided into first outdoor heat exchanger and second outdoor heat exchanger, wherein the cross valve unit comprises first cross valve and second cross valve, first cross valve switchably is connected to the exhaust outlet of compressor or any in the air entry with the gas line of first outdoor heat exchanger, second cross valve switchably is connected to the exhaust outlet of compressor or any in the air entry with the gas line of second outdoor heat exchanger, and wherein air regulator comprises first expansion valve on the liquid line that is arranged on first outdoor heat exchanger, be arranged on second expansion valve on the liquid line of second outdoor heat exchanger, port first connecting line connected to one another with suction line and first cross valve, port second connecting line connected to one another with suction line and second cross valve, and being arranged on second connecting line to allow the only check-valves that flows from second cross valve to suction line of cold-producing medium, this suction line is connected to each other air entry and the indoor heat exchanger unit of compressor.
Here, suction line can comprise air entry and indoor heat exchanger unit single suction line connected to one another or the many suction line with compressor.Such example can be arranged, and wherein the air entry of compressor is connected to reservoir by single pipeline, and reservoir is connected to the indoor heat exchanger unit by single pipeline, thereby suction line is made up of two pipelines; And wherein optional feature is connected between the air entry and indoor heat exchanger unit of compressor, and suction line is made up of many pipelines.
For above-mentioned structure, under low load running condition, second expansion valve cuts out, and second cross valve is switched the air entry that is connected to compressor with the gas line with second outdoor heat exchanger, thereby prevent that cold-producing medium from flowing to second outdoor heat exchanger, this causes the reducing of capacity of outdoor heat exchanger unit.Like this, capacity that can external heat exchanger unit, control room, and the electronic switch valve that does not have the high pressure loss refrigerant loop setting, and can prevent from heating or the deterioration of refrigerating efficiency.
Though the electronic switch valve is replaced by two cross valves, compare the increase that does not have incurred cost with providing of large scale electronics valve, because being a kind of being easy to, cross valve limits the parts that cost increases, even its size increases to prevent the pressure loss.
As provide check-valves to allow the only result who flows from second cross valve to suction line of cold-producing medium at second connecting line, can prevent from accumulating in second outdoor heat exchanger via second connecting line from the cold-producing medium of suction line or first connecting line, even be not directed to second outdoor heat exchanger at cold-producing medium, but when being directed to first outdoor heat exchanger.Therefore, can prevent the unusual increase of the pressure at expulsion of compressor, perhaps prevent the deterioration of the reliability of the compressor that causes when compression ratio is lower than predetermined value.And, can prevent when second outdoor heat exchanger from shutting down the deterioration owing to the refrigeration performance that gathers of cold-producing medium in second outdoor heat exchanger.
Low and outdoor temperature is also during the low refrigerating operaton with regard to the room air regulating load, the detailed construction of regulation compression ratio is kept in excessive condensation ability by preventing the outdoor heat exchanger unit and the reduction of Compressor Discharge Pressure, air regulator can further comprise the pressure gauge of the pressure at expulsion of measuring compressor and pressure of inspiration(Pi) and control second cross valve at least and the valve control of second expansion valve, if the pressure at expulsion that compression ratio is namely recorded by pressure gauge during the refrigerating operaton is lower than predetermined compression ratio with the ratio of pressure of inspiration(Pi), then valve control can switch second cross valve, make the gas line of second outdoor heat exchanger be connected with the air entry of compressor, and valve control can also cut out second expansion valve.
During and heating operation that outdoor temperature high low in the room air regulating load; prevent that high tension protection circuit from making compressor shutdown under the situation of the pressure at expulsion of the increase of the excessive evaporability of outdoor heat exchanger unit and compressor; if the pressure at expulsion that pressure gauge records during heating operation is higher than predetermined value, then valve control can cut out second expansion valve.
With regard to the structure of each outdoor heat exchanger being carried out defrost operation, the cross valve unit can further comprise main cross valve, it switchably is connected to the indoor heat exchanger unit exhaust outlet of compressor or any in the air entry, air regulator can further comprise first temperature sensor that is arranged on the first outdoor heat exchanger place, be arranged on second temperature sensor at the second outdoor heat exchanger place, with the liquid line of outdoor heat exchanger and the suction line by-pass line connected to one another of compressor, be arranged on the supplementary heat exchanger to carry out heat exchange between the cold-producing medium in liquid line and the cold-producing medium in the by-pass line on the by-pass line, and be arranged on auxiliary expansion valve on the liquid line of supplementary heat exchanger of by-pass line, valve control can be configured to control first cross valve, main cross valve and auxiliary expansion valve, and, if be connected in the indoor heat exchanger unit during the heating operation of exhaust outlet of compressor, first temperature sensor or the detected temperature of second temperature sensor are equal to or less than predetermined value, then changeable first cross valve of valve control or second cross valve make the gas line of win outdoor heat exchanger or second outdoor heat exchanger be connected to the exhaust outlet of compressor, keeping main cross valve simultaneously is connected to each other the exhaust outlet of indoor heat exchanger unit and compressor, thereby allow vapor phase refrigerant to be introduced into first outdoor heat exchanger or second outdoor heat exchanger, valve control can also be opened auxiliary expansion valve, evaporated by supplementary heat exchanger with the permission liquid phase refrigerant, and allow vapor phase refrigerant to turn back to suction line.
Description of drawings
By the explanation to embodiment below in conjunction with accompanying drawing, these and/or other aspect of the present disclosure can become obviously and be more readily understood, wherein:
Fig. 1 is the schematic diagram that illustrates according to the air regulator during the refrigerating operaton of the disclosure one embodiment;
Fig. 2 is a schematic diagram, illustrate be described the refrigerating operaton of air regulator of embodiment according to of the present invention first during, the situation that the performance of outdoor heat exchanger unit is lowered;
Fig. 3 is a curve map, illustrates according to of the present disclosure first to be described under the situation that the performance of outdoor heat exchanger unit is lowered during the refrigerating operaton of air regulator of embodiment the variation of compression ratio;
Fig. 4 is a schematic diagram, illustrates according to of the present disclosure first and is described air regulator during the heating operation of embodiment;
Fig. 5 is a schematic diagram, illustrates according to of the present disclosure first and is described the situation that the performance of outdoor heat exchanger unit is lowered during the heating operation of air regulator of embodiment;
Fig. 6 A and 6B are curve maps, illustrate respectively according to prior art and of the present disclosure first and are described the variation of the situation downforce that the capacity of outdoor heat exchanger unit is lowered during the heating operation of air regulator of embodiment;
Fig. 7 is a schematic diagram, illustrates according to the air regulator during the refrigerating operaton of another embodiment of the disclosure;
Fig. 8 is a schematic diagram, and the situation that the performance according to outdoor heat exchanger unit during the refrigerating operaton of second of the present disclosure air regulator that is described embodiment is lowered is shown;
Fig. 9 is a schematic diagram, illustrates according to the air regulator during second the of the present disclosure heating operation that is described embodiment;
Figure 10 is a schematic diagram, and the situation that the performance according to outdoor heat exchanger unit during the heating operation of second of the present disclosure air regulator that is described embodiment is lowered is shown;
Figure 11 is the diagram that illustrates according to the defrosting concept of second of the present disclosure air regulator that is described embodiment;
Figure 12 is a schematic diagram, and first defrost operation that is described the air regulator of embodiment according to second of the present disclosure is shown;
Figure 13 is a schematic diagram, and second defrost operation that is described the air regulator of embodiment according to second of the present disclosure is shown; And
Figure 14 is a schematic diagram, and the 3rd defrost operation that is described the air regulator of embodiment according to second of the present disclosure is shown.
The specific embodiment
Now will be in detail with reference to embodiment of the present disclosure, its example is shown in the drawings, and wherein identical Reference numeral represents components identical all the time.
The structure of＜the first embodiment 〉
Be described embodiment referring now to of the present disclosure first of description of drawings.
Referring to Fig. 1, comprise the refrigerant loop that the ring-type by compressor 1, cross valve unit 2, outdoor heat exchanger unit 3 and indoor heat exchanger unit 5 connects and composes according to first air regulator with Reference numeral 100 mark that is described embodiment.In air regulator 100, cross valve unit 2 is used for being connected to for the connection of the exhaust outlet of compressor 1 or air entry any of outdoor heat exchanger unit 3 or indoor heat exchanger unit 5, thereby each heat exchanger unit is as condenser or evaporimeter, and what make that room refrigeration and room heat selectively is switching to possibility.In the air regulator 100 that is described embodiment according to first, for the heat-exchange capacity according to external temperature or indoor load change outdoor heat exchanger unit 3, cross valve unit 2 comprises first cross valve 21 and second cross valve 22, similarly, outdoor heat exchanger unit 3 is divided into first outdoor heat exchanger 31 and second outdoor heat exchanger 32.In addition, oil eliminator 6 is arranged on the exhaust side of compressor 1, is used for the oil that oily collection conduit is collected is back to the suction side of compressor 1.Reservoir (accumulator) 7 is positioned on the suction line L2, thereby only allows to be inhaled in the compressor 1 from the vapor phase refrigerant that liquid phase refrigerant is separated.In addition, air regulator 100 comprises control device 8 to control various parts, and such as cross valve unit 2 or expansion valve etc., these parts will be illustrated below.
Below will the syndeton of cross valve unit 2 and outdoor heat exchanger unit 3 be described based on the refrigerating operaton under the typical service condition shown in Figure 1.Flowing of cold-producing medium will represent that the closed condition of expansion valve will be represented with dark circles with the arrow on the pipeline in every pipeline.
Cold-producing medium process oil eliminator 6 from the exhaust outlet of compressor 1 is discharged is directed to two branch roads, i.e. first branch road and second branch road then.Behind the cross valve, outdoor heat exchanger and the expansion valve that arrange through every branch road, cold-producing medium is merged, and through indoor heat exchanger unit 5.The cold-producing medium through indoor heat exchanger unit 5 arrives the suction line L2 that is connected with the air entry of compressor 1 via first cross valve 21, and turns back to compressor 1.
More specifically, first expansion valve, 41 sequential parallel on the liquid line of first cross valve 21, first outdoor heat exchanger 31 and first outdoor heat exchanger 31 are arranged on first branch road.
Be used as under the situation of refrigerating circuit as condenser and first branch road at first outdoor heat exchanger 31, there is not voltage to be applied on first cross valve 21 to cut off first cross valve 21, thereby first port and second port communicate with each other, and the 3rd port and the 4th port communicate with each other.On the other hand, at first outdoor heat exchanger 31 as evaporimeter and first branch road as heating under the situation in loop, voltage is applied on first cross valve 21 to connect first cross valve 21, to make win port and the 4th port and communicates with each other, and second port and the 3rd port communicate with each other.
Be similar to those parts on first branch road, second expansion valve, 42 sequential parallel on the liquid line of second cross valve 22, second outdoor heat exchanger 32 and second outdoor heat exchanger 32 are arranged on second branch road.
Second outdoor heat exchanger 32 as condenser and the situation of second branch road as refrigerating circuit under, do not have voltage to be applied on second cross valve 22 to cut off second cross valve 22, make that only first port and second port communicate with each other.Though the 3rd port and the 4th port are connected to one another when first port and second port communicate with each other, the 4th port seals, the therefore mobile generation of no cold-producing medium between the 3rd port and the 4th port.On the other hand, at second outdoor heat exchanger 32 as evaporimeter and second branch road as heating under the situation in loop, voltage is applied on second cross valve 22 to connect second cross valve 22, makes that only second port and the 3rd port communicate with each other.
At first, will under the low loading condition of low outdoor temperature and low indoor load, carry out the situation of refrigerating operaton with respect to air regulator 100, the operation of valve control 81 will be described.Be described the refrigerating operaton of the air regulator 100 of embodiment according to first, as shown in fig. 1, refer to first cross valve 21 and second cross valve 22 and be in the operation that dissengaged positions and first outdoor heat exchanger 31 and second outdoor heat exchanger 32 all are used as condenser.
Continuous cooling operation under the low loading condition can reduce the pressure at expulsion of compressor 1, and this causes the pressure at expulsion of compressor 1 and the little difference between the pressure of inspiration(Pi).For example, this makes compressor 1 be difficult to move under the compression ratio of recommending, and causes compressor fault.If compression ratio namely is lower than predetermined compression ratio by the ratio of the pressure at expulsion of manometry and pressure of inspiration(Pi) during the refrigerating operaton, as shown in Figure 2, valve control 81 switches second cross valve 22 makes the gas line of second outdoor heat exchanger 32 be connected with the air entry of compressor 1, and valve control 81 also cuts out second expansion valve 42.
That is, if detect reducing of compression ratio, then valve control 81 is connected second cross valve 22, makes the port of winning be connected to the 4th port and is closed, and second port and the 3rd port are interconnected simultaneously.Because second expansion valve 42 is cut out by valve control 81, separates so be provided with second branch road and the loop of second outdoor heat exchanger 32, and does not have the mobile generation of cold-producing medium.Like this, cold-producing medium only flows through first outdoor heat exchanger 31, and this allows the capacity (capacity) of outdoor heat exchanger unit 3 to reduce according to low loading condition.In case the capacity of outdoor heat exchanger unit 3 reduces and adapts with low loading condition, then shown in the curve map of Fig. 3, the pressure at expulsion of compressor 1 increases, and this allows compressor 1 to turn back to normal compression ratio from low compression ratio.Like this, compressor 1 can keep reliable.
In addition, being arranged on the cold-producing medium that check-valves 9 on the second connecting line L32 can prevent that the 4th port and the 3rd port via first cross valve 21 from turning back to the air entry 1 of compressor 1 from indoor heat exchanger unit 5 flow back into second outdoor heat exchanger 32.Namely; when the capacity of outdoor heat exchanger unit 3 reduces according to low loading condition; cold-producing medium gathers in second outdoor heat exchanger 32 in the time of can preventing that second outdoor heat exchanger 32 from shutting down, and can prevent the decline of the refrigerating capacity that the low flow velocity because of cold-producing medium causes.
Next, will under the low loading condition of high outdoor temperature and low indoor load, carry out the situation of heating operation with respect to air regulator 100, the operation of valve control 81 will be described.Equally, in order during the heating operation of standard output, each outdoor heat exchanger to be moved as evaporimeter, as shown in Figure 4, each cross valve is switched, win port and the 4th port are connected with each other, second port and the 3rd port communicate with each other, with being connected between the air entry of the gas line of guaranteeing each outdoor heat exchanger and compressor 1.
Proceed heating operation under low loading condition, shown in the curve map of Fig. 6 A, the pressure at expulsion of compressor 1 constantly increases.So for the sake of security, the operation meeting of compressor 1 stops because of high voltage protective.In order to prevent the shutdown of not expecting of compressor 1, if the detected pressure at expulsion of pressure gauge surpasses predetermined value during heating operation, then as shown in Figure 5, valve control 81 cuts out second expansion valve 42.That is, because second expansion valve 42 is closed, the cold-producing medium that has flow through indoor heat exchanger unit 5 only flows through first heat exchanger 31, and this can reduce the capacity of outdoor heat exchanger unit 3.If the capacity of outdoor heat exchanger unit 3 reduces, then shown in Fig. 6 B, the pressure at expulsion of compressor 1 reduces, and this can prevent the startup of high tension protection circuit.Be different from above-mentioned refrigerating operaton, second cross valve 22 keeps initial on-state during heating operation, thereby special change does not take place.Even in this case, because the second connecting line L32 goes up the check-valves 9 that arranges, can prevent from flowing back to the second connecting line L32 from first outdoor heat exchanger 31 through the cold-producing medium that suction line L2 is back to the air entry of compressor 1, and prevent that it from gathering in second outdoor heat exchanger 32.
The effect of＜the first embodiment 〉
By connecting or turning off second cross valve 22 and close second expansion valve 42, has the effect that reduces the capacity of outdoor heat exchanger unit 3 according to the low loading condition of the low loading condition of refrigerating operaton or heating operation according to first air regulator 100 that is described embodiment.That is, at the front side of second outdoor heat exchanger 32 and rear side the electronic switch valve being set can be no longer necessary, and this electronic switch valve is used to prevent the flowing through second outdoor heat exchanger 32 of cold-producing medium traditionally.
Further, owing to be provided with check-valves 9 at the second connecting line L32 that is connected with suction line L2, use the electronic switch valve so be similar to, can prevent that cold-producing medium from gathering in second outdoor heat exchanger 32.
Therefore, owing to can use the electronic switch valve that causes the high pressure loss to realize the variable capacity of outdoor heat exchanger unit 3, and owing to can use and have that although the low pressure loss and its have large scale but also low cross valve of cost, so can prevent the obvious increase of manufacturing cost, and not have the deterioration of the performance of refrigerating circuit.
The structure of＜the second embodiment 〉
The air regulator 100 that is described embodiment according to second of the disclosure will be described now.Represent with identical Reference numeral with first corresponding parts of parts that are described the air regulator 100 of embodiment.
More specifically, as shown in Figure 7, second air regulator 100 that is described embodiment is different with the air regulator 100 that first is described embodiment about the structure of cross valve unit 2.In addition, second air regulator 100 that is described embodiment further comprises: supplementary heat exchanger 33, and it is arranged on the suction line L2 of the liquid line of outdoor heat exchanger unit 3 and the compressor 1 by-pass line L4 connected to one another; And auxiliary expansion valve 43, it is arranged on the liquid line of supplementary heat exchanger 33 of by-pass line L4.And, in order to defrost, be changed at textural valve control 81, with further control first cross valve 21, the main cross valve 23 that hereinafter will illustrate and auxiliary expansion valve 43.
To illustrate in further detail below with first and be described the different parts of the parts of embodiment.
The interpolation of main cross valve 23 causes the change of the connection structure of first cross valve 21.The 4th port of first cross valve 21 is described at first and is connected to indoor heat exchanger unit 5 among embodiment, still is described among the embodiment at second to be closed.In addition, for first port of first cross valve 21 and the exhaust outlet of compressor 1 are connected to each other, exhaust line L1 is diverged to be connected to first port of main cross valve 23 and first port of first cross valve 21.
Even in second air regulator with above-mentioned structure 100 that is described embodiment, be similar to first and be described embodiment, the capacity of outdoor heat exchanger unit 3 also can suitably be changed, even at refrigerant loop the electronic switch valve is not set.
More specifically, if the pressure at expulsion at compressor 1 during the refrigerating operaton as shown in Figure 7 reduces under low loading condition, then as shown in Figure 8, second cross valve 22 is switched to be suitable for heating mode and is closed, main cross valve 23 remains on refrigeration mode simultaneously, so that cold-producing medium can 5 importings from the indoor heat exchanger unit.
In addition, if the pressure at expulsion at compressor 1 during the heating operation as shown in Figure 9 excessively increases under low loading condition, then as shown in Figure 10, second expansion valve 42 is closed, and main cross valve 23, first cross valve 21 and second cross valve 22 remain on heating mode simultaneously.
Like this, be similar to first and be described embodiment, can reduce the capacity of outdoor heat exchanger unit as required, and keep predetermined compression ratio or reduce the pressure at expulsion of compressor 1.And, as the result that check-valves 9 is set at the second connecting line L32, can prevent that cold-producing medium from refluxing and gather from air intake duct line L2 in second outdoor heat exchanger 32.
Next, will illustrate according to second defrosting that is described the air regulator during heating operation 100 of embodiment.
During defrosting, as shown in figure 11, at first only first outdoor heat exchanger 31 stands defrosting, and first outdoor heat exchanger 31 and second outdoor heat exchanger 32 experience defrosting simultaneously then, thereafter only second outdoor heat exchanger, 32 experience defrostings.Herein, during the defrosting, valve control 81 is opened auxiliary expansion valve 43 in first outdoor heat exchanger 31 and second outdoor heat exchanger 32, thereby causes the evaporation of liquid phase refrigerant by supplementary heat exchanger 33, and allows vapor phase refrigerant to be back to suction line L2.
More specifically, if the temperature that the first temperature sensor (not shown) or the second temperature sensor (not shown) record during the heating operation is equal to or less than predetermined value, then as shown in figure 12, valve control 81 at first is maintained at heating mode with main cross valve 23,21 switchings of first cross valve are suitable for refrigeration mode, and second cross valve 22 is maintained at heating mode, thereby allow vapor phase refrigerant to be imported in first outdoor heat exchanger 31.Like this, because the high temperature vapor phase refrigerant is imported in first outdoor heat exchanger 31, realized the defrosting of first outdoor heat exchanger 31.When the temperature that records when first temperature sensor became predetermined value or higher (for example 1 ℃ or higher), the defrosting of first outdoor heat exchanger 31 finished.During the defrosting of first outdoor heat exchanger 31 only, auxiliary expansion valve 43 is closed.
Next, as shown in figure 13, valve control 81 is suitable for refrigeration mode with first cross valve 21 and 22 switchings of second cross valve simultaneously, make the high temperature vapor phase refrigerant be imported into first outdoor heat exchanger 31 and second outdoor heat exchanger, 32 lasting scheduled time T (for example 30 seconds), valve control 81 also will assist expansion valve 43 to open scheduled time T (for example 30 seconds), make liquid phase refrigerant be evaporated by supplementary heat exchanger 33, be back to suction line L2 to allow vapor phase refrigerant.
Then, as shown in figure 14, valve control 81 is suitable for heating mode with 21 switchings of first cross valve, and second cross valve 22 is remained on refrigeration mode, thereby allows vapor phase refrigerant to be imported into second outdoor heat exchanger 32.Thereby, because the high temperature vapor phase refrigerant is imported into second outdoor heat exchanger 32, realized the defrosting of second outdoor heat exchanger 32.Finish when the temperature that the defrosting of second outdoor heat exchanger 32 records at second temperature sensor becomes predetermined value or higher (for example 1 ℃ or higher), and second cross valve 22 is switched to be suitable for heating mode so that can carry out the heating operation of standard.During the defrosting of second outdoor heat exchanger 32 only, auxiliary expansion valve 43 is closed.
The effect of＜the second embodiment 〉
According to second air regulator with above-mentioned structure 100 that is described embodiment in the reliability of keeping compressor 1, can be alternately to first outdoor heat exchanger 31 and 32 defrostings of second outdoor heat exchanger by making, even during defrosting, also can continue to carry out heating operation, this can limit the decline of room temperature during defrosting, thereby has created comfortable indoor environment.
Other embodiment also are fine.
Provided for example according to the refrigerant lines of each embodiment and the method for attachment of each cross valve, and any other method of attachment all is fine, and can switch refrigeration and heating operation and prevent that cold-producing medium from flowing to selected in the outdoor heat exchanger as long as it makes.
Only otherwise opposite with the purpose of embodiment, the various variations of embodiment and combination can be allowed to.
Obvious by top description, air regulator according to disclosure embodiment utilizes cross valve and expansion valve, can adjust the capacity of outdoor heat exchanger unit according to low load running condition, and not use the electronic switch valve of the balance that is difficult to keep the pressure loss and cost.In addition; when the importing of cold-producing medium to the second outdoor heat exchanger stops; can utilize the check-valves that is arranged on second connecting line to prevent from refluxing through second connecting line from the cold-producing medium of first connecting line or suction line, and can prevent that it from gathering when second outdoor heat exchanger is shut down in second outdoor heat exchanger.
Though embodiment of the present disclosure is shown and explanation, skilled person in the art will appreciate that and to make change and not depart from principle of the present invention and purport these embodiment that scope of the present invention limits in claim and equivalent thereof.
Claims (13)
1. an air regulator comprises the refrigerant loop that is connected structure by the ring-type of compressor, cross valve unit, outdoor heat exchanger unit and indoor heat exchanger unit,
Wherein said outdoor heat exchanger unit is divided into first outdoor heat exchanger and second outdoor heat exchanger,
Wherein said cross valve unit comprises: first cross valve, and its gas line with described first outdoor heat exchanger switchably is connected to the exhaust outlet of described compressor or any in the air entry; And second cross valve, its gas line with described second outdoor heat exchanger switchably is connected to the described exhaust outlet of described compressor or any in the described air entry, and
Wherein said air regulator comprises:
First expansion valve, it is arranged on the liquid line of described first outdoor heat exchanger;
Second expansion valve, it is arranged on the liquid line of described second outdoor heat exchanger;
First connecting line, its port with suction line and described first cross valve is connected to each other, and described suction line is connected to each other described air entry and the described indoor heat exchanger unit of described compressor;
Second connecting line, its port with described suction line and described second cross valve is connected to each other; And
Check-valves, it is arranged on described second connecting line, only to allow the flowing from described second cross valve to described suction line of cold-producing medium.
2. air regulator as claimed in claim 1 further comprises:
Pressure gauge, it measures pressure at expulsion and the pressure of inspiration(Pi) of described compressor; And
Valve control, it controls described second cross valve and described second expansion valve at least,
Wherein, if to be the described pressure at expulsion that records of described pressure gauge be lower than predetermined compression ratio with the ratio of described pressure of inspiration(Pi) to compression ratio during refrigerating operaton, then described valve control switches described second cross valve, make the described gas line of described second outdoor heat exchanger be connected with the described air entry of described compressor, and described valve control also cut out described second expansion valve.
3. air regulator as claimed in claim 2, wherein, if the described pressure at expulsion that is recorded by described pressure gauge during heating operation is higher than predetermined value, then described valve control cuts out described second expansion valve.
4. air regulator as claimed in claim 1, wherein, described cross valve unit further comprises main cross valve, it switchably is connected to described indoor heat exchanger unit the described exhaust outlet of described compressor or any in the described air entry,
Wherein this air regulator further comprises:
First temperature sensor, it is arranged at described first outdoor heat exchanger;
Second temperature sensor, it is arranged at described second outdoor heat exchanger;
By-pass line, it is connected to each other the described liquid line of described outdoor heat exchanger unit and the described suction line of described compressor;
Supplementary heat exchanger, it is arranged on the described by-pass line, to carry out cold-producing medium in the described liquid line and the heat exchange between the cold-producing medium in the described by-pass line; And
Auxiliary expansion valve, it is arranged on the liquid line of described supplementary heat exchanger of described by-pass line;
Wherein said valve control is configured to control described first cross valve, described main cross valve and described auxiliary expansion valve, and
Wherein, if be connected in described indoor heat exchanger unit during the heating operation of described exhaust outlet of described compressor, the temperature that described first temperature sensor or described second temperature sensor record is equal to or less than predetermined value, then described valve control is being kept the described exhaust outlet connected to one another while of described main cross valve with described indoor heat exchanger unit and described compressor, switch described first cross valve or described second cross valve, make the described gas line of described first outdoor heat exchanger or described second outdoor heat exchanger be connected to the described exhaust outlet of described compressor, thereby allow vapor phase refrigerant to be imported in described first outdoor heat exchanger or described second outdoor heat exchanger, and described valve control is also opened described auxiliary expansion valve, to allow liquid phase refrigerant to be evaporated by described supplementary heat exchanger and to allow vapor phase refrigerant to get back to described suction line.
5. air regulator as claimed in claim 2, wherein said cross valve unit further comprises main cross valve, it switchably is connected to described indoor heat exchanger unit the described exhaust outlet of described compressor or any in the described air entry,
Wherein this air regulator further comprises:
First temperature sensor, it is arranged at described first outdoor heat exchanger;
Second temperature sensor, it is arranged at described second outdoor heat exchanger;
By-pass line, it is connected to each other the described liquid line of described outdoor heat exchanger unit and the described suction line of described compressor;
Supplementary heat exchanger, it is arranged on the described by-pass line to carry out cold-producing medium in the described liquid line and the heat exchange between the cold-producing medium in the described by-pass line; And
Auxiliary expansion valve, it is arranged on the liquid line of described supplementary heat exchanger of described by-pass line;
Wherein said valve control is configured to control described first cross valve, described main cross valve and described auxiliary expansion valve, and
Wherein, if be connected in described indoor heat exchanger unit during the heating operation of described exhaust outlet of described compressor, the temperature that described first temperature sensor or described second temperature sensor record is equal to or less than predetermined value, then described valve control is being kept the described exhaust outlet connected to one another while of described main cross valve with described indoor heat exchanger unit and described compressor, switch described first cross valve or described second cross valve, make the described gas line of described first outdoor heat exchanger or described second outdoor heat exchanger be connected to the described exhaust outlet of described compressor, thereby allow vapor phase refrigerant to be imported in described first outdoor heat exchanger or described second outdoor heat exchanger, and described valve control is also opened described auxiliary expansion valve, to allow liquid phase refrigerant to be evaporated by described supplementary heat exchanger and to allow vapor phase refrigerant to get back to described suction line.
6. air regulator as claimed in claim 3, wherein said cross valve unit further comprises main cross valve, it switchably is connected to described indoor heat exchanger unit the described exhaust outlet of described compressor or any in the described air entry,
Wherein this air regulator further comprises:
First temperature sensor, it is arranged at described first outdoor heat exchanger;
Second temperature sensor, it is arranged at described second outdoor heat exchanger;
By-pass line, it is connected to each other the described liquid line of described outdoor heat exchanger unit and the described suction line of described compressor;
Supplementary heat exchanger, it is arranged on the described by-pass line, to carry out cold-producing medium in the described liquid line and the heat exchange between the cold-producing medium in the described by-pass line; And
Auxiliary expansion valve, it is arranged on the liquid line of described supplementary heat exchanger of described by-pass line;
Wherein said valve control is configured to control described first cross valve, described main cross valve and described auxiliary expansion valve, and
Wherein, if be connected in described indoor heat exchanger unit during the heating operation of described exhaust outlet of described compressor, the temperature that is recorded by described first temperature sensor or described second temperature sensor is equal to or less than predetermined value, then described valve control is being kept the described exhaust outlet connected to one another while of described main cross valve with described indoor heat exchanger unit and described compressor, switch described first cross valve or described second cross valve, make the described gas line of described first outdoor heat exchanger or described second outdoor heat exchanger be connected to the described exhaust outlet of described compressor, thereby allow vapor phase refrigerant to be imported in described first outdoor heat exchanger or described second outdoor heat exchanger, and described valve control is also opened described auxiliary expansion valve, to allow liquid phase refrigerant to be evaporated by described supplementary heat exchanger and to allow vapor phase refrigerant to get back to described suction line.
7. air regulator comprises:
Compressor;
The cross valve unit, it comprises first cross valve and second cross valve;
The outdoor heat exchanger unit, it comprises first outdoor heat exchanger and second outdoor heat exchanger; And
The indoor heat exchanger unit,
Wherein said first cross valve is configured to switchably the gas line of described first outdoor heat exchanger is connected to the exhaust outlet of described compressor or any in the air entry, and
Described second cross valve is configured to switchably the gas line of described second outdoor heat exchanger is connected to the described exhaust outlet of described compressor or any in the described air entry.
8. air regulator as claimed in claim 7 further comprises:
First expansion valve, it is arranged on the liquid line of described first outdoor heat exchanger;
Second expansion valve, it is arranged on the liquid line of described second outdoor heat exchanger;
First connecting line, its port with suction line and described first cross valve is connected to each other, and described suction line is connected to each other described air entry and the described indoor heat exchanger unit of described compressor;
Second connecting line, its port with described suction line and described second cross valve is connected to each other; And
Check-valves, it is arranged on described second connecting line, only to allow the flowing from described second cross valve to described suction line of cold-producing medium.
9. air regulator as claimed in claim 7, wherein said suction line comprises the described air entry of described compressor and described indoor heat exchanger unit many suction line connected to one another.
10. air regulator as claimed in claim 7, the described air entry of wherein said compressor is connected to reservoir by single pipeline, and described reservoir is connected to described indoor heat exchanger unit by single pipeline, and
Optional feature is connected between the described air entry and described indoor heat exchanger unit of described compressor.
11. air regulator as claimed in claim 8 further comprises:
Pressure gauge, it measures pressure at expulsion and the pressure of inspiration(Pi) of described compressor; And
Valve control, it controls described second cross valve and described second expansion valve at least, if the described pressure at expulsion that compression ratio is namely recorded by described pressure gauge during refrigerating operaton is lower than predetermined compression ratio with the ratio of described pressure of inspiration(Pi), then described valve control is configured to switch described second cross valve, make the described gas line of described second outdoor heat exchanger be connected to the described air entry of described compressor, and described valve control cut out described second expansion valve.
12. air regulator as claimed in claim 8, wherein said cross valve unit further comprises main cross valve, and it switchably is connected to described indoor heat exchanger unit the described exhaust outlet of described compressor or any in the described air entry.
13. air regulator as claimed in claim 12 further comprises:
First temperature sensor, it is arranged at described first outdoor heat exchanger;
Second temperature sensor, it is arranged at described second outdoor heat exchanger;
By-pass line, it is connected to each other the described liquid line of described outdoor heat exchanger unit and the described suction line of described compressor;
Supplementary heat exchanger, it is arranged on the described by-pass line, to carry out cold-producing medium in the described liquid line and the heat exchange between the cold-producing medium in the described by-pass line; And
Auxiliary expansion valve, it is arranged on the liquid line of described supplementary heat exchanger of described by-pass line,
Wherein said valve control is configured to control described first cross valve, described main cross valve and described auxiliary expansion valve, if and be connected in described indoor heat exchanger unit during the heating operation of described exhaust outlet of described compressor, the temperature that described first temperature sensor or described second temperature sensor record is equal to or less than predetermined value, then described valve control is configured to keeping the described exhaust outlet connected to one another while of described main cross valve with described indoor heat exchanger unit and described compressor, switch described first cross valve or described second cross valve, make the described gas line of described first outdoor heat exchanger or described second outdoor heat exchanger be connected to the described exhaust outlet of described compressor, thereby allow vapor phase refrigerant to be imported in described first outdoor heat exchanger or described second outdoor heat exchanger, and
Described valve control is configured to open described auxiliary expansion valve, to allow liquid phase refrigerant to be evaporated by described supplementary heat exchanger and to allow vapor phase refrigerant to get back to described suction line.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-271481 | 2011-12-12 | ||
| JP2011271481A JP2013122354A (en) | 2011-12-12 | 2011-12-12 | Air conditioner |
| KR10-2012-0114473 | 2012-10-15 | ||
| KR1020120114473A KR20130066499A (en) | 2011-12-12 | 2012-10-15 | Air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103256748A true CN103256748A (en) | 2013-08-21 |
Family
ID=47504671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105992521A Pending CN103256748A (en) | 2011-12-12 | 2012-12-12 | Air conditioner |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2013122354A (en) |
| KR (1) | KR20130066499A (en) |
| CN (1) | CN103256748A (en) |
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| CN113251499A (en) * | 2021-05-06 | 2021-08-13 | 青岛海尔空调器有限总公司 | Air conditioner outdoor unit, air conditioner control method, air conditioner control device, air conditioner control equipment and medium |
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| CN104089427A (en) * | 2014-06-24 | 2014-10-08 | 珠海格力电器股份有限公司 | Air conditioner system and control method thereof |
| WO2017012382A1 (en) * | 2015-07-22 | 2017-01-26 | 广东美的暖通设备有限公司 | Outdoor unit of multi-split air conditioner and multi-split air conditioner having same |
| US10288328B2 (en) | 2015-07-22 | 2019-05-14 | Gd Midea Heating & Ventilating Equipment Co., Ltd. | Outdoor unit for VRF air conditioning system and VRF air conditioning system having same |
| CN106996657A (en) * | 2015-09-16 | 2017-08-01 | Lg电子株式会社 | Air regulator |
| US10465948B2 (en) | 2015-09-16 | 2019-11-05 | Lg Electronics Inc. | Air conditioner |
| CN106996657B (en) * | 2015-09-16 | 2020-05-12 | Lg电子株式会社 | Air conditioner |
| WO2020156101A1 (en) * | 2019-01-31 | 2020-08-06 | 日立江森自控空调有限公司 | Refrigerant distribution and adjustment device, air-conditioning system and method for controlling air-conditioning system |
| CN111076446A (en) * | 2019-12-02 | 2020-04-28 | 珠海格力电器股份有限公司 | Heat pump air conditioning system and control method thereof |
| CN113251499A (en) * | 2021-05-06 | 2021-08-13 | 青岛海尔空调器有限总公司 | Air conditioner outdoor unit, air conditioner control method, air conditioner control device, air conditioner control equipment and medium |
| CN114198857A (en) * | 2021-11-17 | 2022-03-18 | 青岛海尔空调电子有限公司 | Air conditioner control method and air conditioner system |
| CN114198857B (en) * | 2021-11-17 | 2023-02-28 | 青岛海尔空调电子有限公司 | Air conditioner control method and air conditioner system |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20130066499A (en) | 2013-06-20 |
| JP2013122354A (en) | 2013-06-20 |
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