CN109059106A - Indoor unit, control method and the air-conditioning system of air-conditioning system - Google Patents
Indoor unit, control method and the air-conditioning system of air-conditioning system Download PDFInfo
- Publication number
- CN109059106A CN109059106A CN201810636740.2A CN201810636740A CN109059106A CN 109059106 A CN109059106 A CN 109059106A CN 201810636740 A CN201810636740 A CN 201810636740A CN 109059106 A CN109059106 A CN 109059106A
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- Prior art keywords
- refrigerant
- air
- indoor unit
- conditioning system
- reheater
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
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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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F2003/144—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by dehumidification only
- F24F2003/1446—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by dehumidification only by condensing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/247—Active noise-suppression
-
- 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
- F25B2500/00—Problems to be solved
- F25B2500/12—Sound
Abstract
The invention discloses a kind of indoor unit of air-conditioning system, control method and air-conditioning systems.Wherein, the indoor unit of air-conditioning system, comprising: reheater;Indoor set heat exchanger;Heat-exchanger rig, one end of the heat-exchanger rig is connected to the refrigerant exit of outdoor unit and the other end is connected to the refrigerant exit of the refrigerant inlet of the indoor set heat exchanger and the reheater respectively, for working in the indoor unit in constant temperature dehumidification mode, cool down to the refrigerant of the refrigerant exit of the outdoor unit, and is sent into the indoor set heat exchanger after mixing with the refrigerant of the refrigerant exit of the reheater.The noise of constant temperature dehumidification can be effectively reduced in the indoor unit of air-conditioning system of the invention, and promotes the constant temperature dehumidification effect of indoor unit.
Description
Technical field
The present invention relates to heating equipment field more particularly to a kind of indoor units of air-conditioning system, control method and air-conditioning system
System.
Background technique
Air conditioner generally also has dehumidification function other than basic refrigeration and heat-production functions, due to dehumidifying and refrigerating operaton
There is no essential distinctions, and therefore, when dehumidifying typically results in room temperature reduction, when temperature is inherently high and when humidity is larger,
Such as plum rain season, usually carrying out dehumidifying can make human body sensory uncomfortable, and therefore, constant temperature dehumidification technology is come into being.
In the related technology, constant temperature dehumidification technology mainly has control compressor to start and stop to guarantee room temperature, also has
The leaving air temp of air-conditioning is improved by increasing the auxiliary thermal of electricity, but this heating air-supply will cause the waste of the energy, in order to drop
Low energy consumption, the constant temperature dehumidification method that air-supply is heated using the refrigerant of high temperature and pressure are come into being.
As shown in figure 3, in the related technology, being heated using the refrigerant of high temperature and pressure in the constant temperature dehumidification method of air-supply, room
For interior machine when carrying out constant temperature dehumidification, it is easy to appear gas-liquid two-phases when the liquid pipe refrigerant degree of supercooling deficiency come out from outer machine
State, (that is: electronics is swollen with the first valve 1 is entered after the refrigerant of the second valve (that is: electric expansion valve 2) is mixed
Swollen valve 1) very big throttling noise can be generated, and the refrigerant of gas-liquid two-phase state also will affect the control essence of electric expansion valve 1
Degree.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.
For this purpose, an object of the present invention is to provide a kind of indoor units of air-conditioning system.The indoor unit of the air-conditioning system
The noise of constant temperature dehumidification can be effectively reduced, and promote the constant temperature dehumidification effect of indoor unit.
It is another object of the present invention to a kind of control methods for the indoor unit for proposing air-conditioning system.
Another object of the present invention is to propose a kind of air-conditioning system.
To achieve the goals above, the embodiment of the first aspect of the present invention discloses a kind of indoor unit of air-conditioning system,
It include: reheater;Indoor set heat exchanger;Heat-exchanger rig, one end of the heat-exchanger rig be connected to the refrigerant exit of outdoor unit and
The other end is connected to the refrigerant exit of the refrigerant inlet of the indoor set heat exchanger and the reheater respectively, in the room
The work of interior machine cools down to the refrigerant of the refrigerant exit of the outdoor unit in constant temperature dehumidification mode, and with the reheater
Refrigerant exit refrigerant mixing after be sent into the indoor set heat exchanger.
Indoor unit under constant temperature dehumidification mode can be effectively reduced in the indoor unit of air-conditioning system according to an embodiment of the present invention
Operating noise, the throttling noise for effectively inhibiting refrigerant to generate by the electric expansion valve of indoor unit, while indoor unit can also be mentioned
The control precision of high electric expansion valve promote the constant temperature dehumidification effect of indoor unit in turn, promote the user experience of indoor unit.
In some instances, the heat-exchanger rig includes pipeline, and at least part of the pipeline runs through the reheater,
It is subcooled using refrigerant of the Cryogenic air after dehumidifying to the refrigerant exit of the outdoor unit.
In some instances, the pipeline is metal cooling-pipe road.
In some instances, the heat-exchanger rig includes heat exchanger, and one end of the heat exchanger and the refrigerant of outdoor unit go out
Mouth is connected to and the other end is connected to the refrigerant exit of the refrigerant inlet of the indoor set heat exchanger and the reheater respectively.
In some instances, further includes: the refrigerant exit of refrigerant blending tank, the refrigerant blending tank and the reheater,
The refrigerant inlet of the other end of the heat-exchanger rig and the indoor set heat exchanger is connected.
In some instances, the other end of the heat-exchanger rig passes through the refrigerant of the first valve and the indoor set heat exchanger
Entrance is connected, and is connected by the second valve with the refrigerant exit of the reheater.
In some instances, first valve and second valve are electric expansion valve.
The embodiment of the second aspect of the present invention discloses a kind of control method of the indoor unit of air-conditioning system, comprising:
The indoor unit work further cools down to the refrigerant of the refrigerant exit of outdoor unit in constant temperature dehumidification mode;Cooling down
Afterwards, the refrigerant with the refrigerant exit of reheater is mixed and fed into indoor set heat exchanger.
Constant temperature dehumidification mode can be effectively reduced in the control method of the indoor unit of air-conditioning system according to an embodiment of the present invention
The operating noise of lower indoor unit, the throttling noise for effectively inhibiting refrigerant to generate by the electric expansion valve of indoor unit, while can also
To propose the control precision of the high electric expansion valve of indoor unit, in turn, the constant temperature dehumidification effect of indoor unit is promoted, indoor unit is promoted
User experience.
The embodiment of the third aspect of the present invention discloses a kind of air-conditioning system, comprising: outdoor unit and indoor unit, wherein
The indoor unit is the indoor unit of the air-conditioning system according to the embodiment of above-mentioned first aspect.The air-conditioning system can be effective
Reduce the operating noise of indoor unit under constant temperature dehumidification mode, the section for effectively inhibiting refrigerant to generate by the electric expansion valve of indoor unit
Noise is flowed, while the control precision of the high electric expansion valve of indoor unit can also be proposed, in turn, promotes the constant temperature dehumidification effect of indoor unit
Fruit promotes the user experience of indoor unit.
In some instances, the air-conditioning system is multi-online air-conditioning system.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect and advantage combination following accompanying drawings of the invention in the description of embodiment to will become
Obviously and it is readily appreciated that, in which:
Fig. 1 is the schematic diagram of the indoor unit of air-conditioning system according to an embodiment of the invention.
Fig. 2 is the flow chart of the control method of the indoor unit of air-conditioning system according to an embodiment of the invention.
Fig. 3 is the schematic diagram of the indoor unit of air-conditioning system in the related technology.
Appended drawing reference:
Indoor unit 100, reheater 110, indoor set heat exchanger 120, heat-exchanger rig 130, the first valve 1, the second valve 2,
Refrigerant blending tank 140, first filter 3, the second filter 4, the first distributor 5, the second distributor 6, height pressure valve 7, gas side
Valve 8, liquid side valve 9.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
Indoor unit, control method and the air-conditioning system of air-conditioning system according to an embodiment of the present invention are described with reference to the accompanying drawing
System.
Fig. 1 is the schematic diagram of the indoor unit of air-conditioning system according to an embodiment of the invention.As shown in Figure 1, according to this
The indoor unit 100 of the air-conditioning system of invention one embodiment, comprising: reheater 110, indoor set heat exchanger 120 and heat-exchanger rig
130。
One end of heat-exchanger rig 130 be connected to the refrigerant exit of outdoor unit and the other end respectively with indoor set heat exchanger 120
Refrigerant inlet be connected to the refrigerant exit of reheater 110, for the work of machine 100 indoors in constant temperature dehumidification mode, to room
The refrigerant of the refrigerant exit of outer machine cools down, and is sent into indoor unit after mixing with the refrigerant of the refrigerant exit of reheater 110 and changes
Hot device 120.
As a specific example, the other end of heat-exchanger rig 130 passes through the first valve 1 and indoor set heat exchanger 120
Refrigerant inlet be connected, and be connected by the second valve 2 with the refrigerant exit of reheater 110.As shown in Figure 1, the first valve 1
It is with the second valve 2 but is not limited to electric expansion valve, such as: the first valve 1 is electric expansion valve 1, and the second valve 2 is electronic expansion
Valve 2.
Heat-exchanger rig 130 includes pipeline, and at least part of pipeline runs through reheater 110, empty using the low temperature after dehumidifying
The refrigerant of the refrigerant exit of outdoor unit is subcooled in gas.Wherein, pipeline is but is not limited to metal cooling-pipe road.As shown in Figure 1, metal
The inside of reheater 110 is arranged in a part of cooling line.
Heat-exchanger rig 130 is by taking metal cooling-pipe road as an example, then the work of the indoor unit 100 of the air-conditioning system of the embodiment of the present invention
It is as follows to make principle:
When indoor unit 100 is in constant temperature dehumidification mode, it may be assumed that when indoor unit 100 carries out constant temperature dehumidification, by from room
The exhaust of the compressor of outer machine introduces high temperature and pressure refrigerant to improve supply air temperature to reach dehumidifying and not cool down (that is: constant temperature dehumidification)
Purpose.
When running constant-temperature dehumidifying function, from refrigerant (that is: the refrigerant exit of the outdoor unit) mistake of the pipeline of outdoor unit out
It is easy to appear gas-liquid two-phase states when cold degree is insufficient, at this point, if directly with come from the refrigerant exit of reheater 110 it is cold
Matchmaker enters electric expansion valve 1 after mixing, then is easy to that very big throttling noise can be generated, while when electric expansion valve 1 is dynamic
The variation of work, fluctuation of operating conditions, 120 heat transfer effect of indoor set heat exchanger may also can equally further result in the size of throttling noise
Uncertainty so the operation noise of indoor unit 100 under constant temperature dehumidification mode on the one hand can be made big, produce human body
Raw sense of discomfort, the gas-liquid two-phase state that another aspect refrigerant is presented will affect the control precision of 1 aperture of electric expansion valve.
Therefore, the indoor unit 100 of the embodiment of the present invention, by increasing supercooling (that is: increase all the way on reheater 110
The metal cooling-pipe road of heat-exchanger rig 130), using the Cryogenic air after dehumidifying refrigerant to be subcooled, it may be assumed that the refrigerant of outdoor unit
The refrigerant of outlet cools down, so that the gaseous coolant content of the refrigerant of the refrigerant exit of outdoor unit is reduced, thus, it is possible to effectively
Inhibit refrigerant to pass through the throttling noise that electric expansion valve 1 generates, while can also be improved the control precision of electric expansion valve 1.
In other examples of the invention, heat-exchanger rig 130 is also for newly-increased heat exchanger, wherein one end of heat exchanger
It is connected to the refrigerant exit of outdoor unit and the other end is cold with the refrigerant inlet of indoor set heat exchanger 120 and reheater 110 respectively
Matchmaker's outlet.That is, further being dropped by increasing a heat exchanger newly to the refrigerant of the refrigerant exit of outdoor unit
Temperature can similarly play the gaseous coolant content for reducing the refrigerant of refrigerant exit of outdoor unit, thus, it is possible to effectively inhibit cold
Matchmaker passes through the throttling noise that electric expansion valve 1 generates, while can also be improved the control precision of electric expansion valve 1.
Indoor unit under constant temperature dehumidification mode can be effectively reduced in the indoor unit of air-conditioning system according to an embodiment of the present invention
Operating noise, the throttling noise for effectively inhibiting refrigerant to generate by the electric expansion valve of indoor unit, while indoor unit can also be mentioned
The control precision of high electric expansion valve promote the constant temperature dehumidification effect of indoor unit in turn, promote the user experience of indoor unit.
Recombine Fig. 1, the indoor unit 100 of air-conditioning system, further includes: refrigerant blending tank 140, refrigerant blending tank 140 with
The refrigerant inlet of the refrigerant exit of reheater 110, the other end of heat-exchanger rig 130 and indoor set heat exchanger 120 is connected.
That is: before refrigerant is sent into indoor set heat exchanger 120, refrigerant blending tank 140 plays the role of transfer to refrigerant, so as to
The throttling noise that refrigerant is generated by the electric expansion valve of indoor unit is further suppressed, while the high electronics of indoor unit can also be mentioned
The control precision of expansion valve.
The noise of constant temperature dehumidification can be effectively reduced in the indoor unit of the air-conditioning system of the embodiment of the present invention, and promotes indoor unit
Constant temperature dehumidification effect.
Fig. 2 is the flow chart of the control method of the indoor unit of air-conditioning system according to an embodiment of the invention.Such as Fig. 2 institute
Show, the control method of the indoor unit of air-conditioning system according to an embodiment of the invention, comprising:
S201: machine work indoors carries out the refrigerant of the refrigerant exit of outdoor unit further in constant temperature dehumidification mode
Cooling.
S202: after cooling, indoor set heat exchanger is mixed and fed into the refrigerant of the refrigerant exit of reheater.
Constant temperature dehumidification mode can be effectively reduced in the control method of the indoor unit of air-conditioning system according to an embodiment of the present invention
The operating noise of lower indoor unit, the throttling noise for effectively inhibiting refrigerant to generate by the electric expansion valve of indoor unit, while can also
To propose the control precision of the high electric expansion valve of indoor unit, in turn, the constant temperature dehumidification effect of indoor unit is promoted, indoor unit is promoted
User experience.
It should be noted that the specific implementation of the control method of the indoor unit of the air-conditioning system of the embodiment of the present invention with
The specific implementation of the indoor unit of the air-conditioning system of the embodiment of the present invention is similar, specifically refers to the indoor unit portion of air-conditioning system
The description divided is not repeated herein to reduce redundancy.
Further, embodiment of the invention discloses a kind of air-conditioning systems, comprising: outdoor unit and indoor unit, wherein room
Interior machine is the indoor unit of the air-conditioning system according to any one above-mentioned embodiment.The air-conditioning system is, for example, multi-gang air-conditioner
System, it may be assumed that the air-conditioning system including an outdoor unit and multiple indoor units.Constant temperature dehumidification mould can be effectively reduced in the air-conditioning system
The operating noise of indoor unit under formula, the throttling noise for effectively inhibiting refrigerant to generate by the electric expansion valve of indoor unit, while
The control precision of the high electric expansion valve of indoor unit can be proposed, in turn, the constant temperature dehumidification effect of indoor unit is promoted, promotes indoor unit
User experience.
In addition, air-conditioning system according to an embodiment of the present invention other compositions and effect for this field ordinary skill
All be for personnel it is known, be not repeated herein.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiment or examples in can be combined in any suitable manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is defined by the claims and their equivalents.
Claims (10)
1. a kind of indoor unit of air-conditioning system characterized by comprising
Reheater;
Indoor set heat exchanger;
Heat-exchanger rig, one end of the heat-exchanger rig be connected to the refrigerant exit of outdoor unit and the other end respectively with the indoor unit
The refrigerant inlet of heat exchanger is connected to the refrigerant exit of the reheater, for working in the indoor unit in constant temperature dehumidification mode
When, cool down to the refrigerant of the refrigerant exit of the outdoor unit, and after being mixed with the refrigerant of the refrigerant exit of the reheater
It is sent into the indoor set heat exchanger.
2. the indoor unit of air-conditioning system according to claim 1, which is characterized in that the heat-exchanger rig includes pipeline, institute
At least part of pipeline is stated through the reheater, using the Cryogenic air after dehumidifying to the refrigerant exit of the outdoor unit
Refrigerant supercooling.
3. the indoor unit of air-conditioning system according to claim 2, which is characterized in that the pipeline is metal cooling-pipe road.
4. the indoor unit of air-conditioning system according to claim 1, which is characterized in that the heat-exchanger rig includes heat exchanger,
One end of the heat exchanger is connected to the refrigerant exit of outdoor unit and refrigerant of the other end respectively with the indoor set heat exchanger enters
Mouth is connected to the refrigerant exit of the reheater.
5. the indoor unit of air-conditioning system according to claim 1, which is characterized in that further include: refrigerant blending tank, it is described cold
Refrigerant exit, the other end of the heat-exchanger rig and the refrigerant of the indoor set heat exchanger of matchmaker's blending tank and the reheater
Entrance is connected.
6. the indoor unit of air-conditioning system according to claim 1, which is characterized in that the other end of the heat-exchanger rig passes through
First valve is connected with the refrigerant inlet of the indoor set heat exchanger, and is gone out by the refrigerant of the second valve and the reheater
Mouth is connected.
7. the indoor unit of air-conditioning system according to claim 6, which is characterized in that first valve and second valve
Door is electric expansion valve.
8. a kind of control method of the indoor unit of air-conditioning system characterized by comprising
In indoor unit work in constant temperature dehumidification mode, further cooled down to the refrigerant of the refrigerant exit of outdoor unit;
After cooling, indoor set heat exchanger is mixed and fed into the refrigerant of the refrigerant exit of reheater.
9. a kind of air-conditioning system characterized by comprising outdoor unit and indoor unit, wherein the indoor unit is to be wanted according to right
Seek the indoor unit of the described in any item air-conditioning systems of 1-7.
10. air-conditioning system according to claim 9, which is characterized in that the air-conditioning system is multi-online air-conditioning system.
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CN201810636740.2A CN109059106A (en) | 2018-06-20 | 2018-06-20 | Indoor unit, control method and the air-conditioning system of air-conditioning system |
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CN201810636740.2A CN109059106A (en) | 2018-06-20 | 2018-06-20 | Indoor unit, control method and the air-conditioning system of air-conditioning system |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110207265A (en) * | 2019-06-10 | 2019-09-06 | 珠海格力电器股份有限公司 | Air conditioner indoor unit and air conditioner |
CN110726225A (en) * | 2019-10-12 | 2020-01-24 | 广东美的暖通设备有限公司 | Multi-split system and control method thereof |
CN112013515A (en) * | 2019-05-30 | 2020-12-01 | 广东美的制冷设备有限公司 | Control method of air conditioner |
CN112013471A (en) * | 2019-05-30 | 2020-12-01 | 广东美的制冷设备有限公司 | Air conditioner and control method thereof |
CN112797657A (en) * | 2019-10-28 | 2021-05-14 | 广东美的制冷设备有限公司 | Air conditioner and control method thereof |
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CN112013471A (en) * | 2019-05-30 | 2020-12-01 | 广东美的制冷设备有限公司 | Air conditioner and control method thereof |
CN112013515B (en) * | 2019-05-30 | 2022-02-11 | 广东美的制冷设备有限公司 | Control method of air conditioner |
CN112013471B (en) * | 2019-05-30 | 2022-05-17 | 广东美的制冷设备有限公司 | Air conditioner and control method thereof |
CN110207265A (en) * | 2019-06-10 | 2019-09-06 | 珠海格力电器股份有限公司 | Air conditioner indoor unit and air conditioner |
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