CN109357430A - The indoor temperature control system and method that air-conditioning is combined with heat transfer unit (HTU) - Google Patents

The indoor temperature control system and method that air-conditioning is combined with heat transfer unit (HTU) Download PDF

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Publication number
CN109357430A
CN109357430A CN201811150940.3A CN201811150940A CN109357430A CN 109357430 A CN109357430 A CN 109357430A CN 201811150940 A CN201811150940 A CN 201811150940A CN 109357430 A CN109357430 A CN 109357430A
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CN
China
Prior art keywords
temperature
flow cycle
refrigerant flow
heat transfer
air
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Application number
CN201811150940.3A
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Chinese (zh)
Inventor
李越峰
高向军
袁竹
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四川长虹空调有限公司
四川佳港科技有限公司
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Priority to CN201811150940.3A priority Critical patent/CN109357430A/en
Publication of CN109357430A publication Critical patent/CN109357430A/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B13/00Compression machines, plant or systems with reversible cycle
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/20Disposition of valves, e.g. of on-off valves or flow control valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/30Expansion means; Dispositions thereof
    • F25B41/31Expansion valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B47/00Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
    • F25B47/02Defrosting cycles
    • F25B47/022Defrosting cycles hot gas defrosting
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B49/00Arrangement or mounting of control or safety devices
    • F25B49/02Arrangement or mounting of control or safety devices for compression type machines, plant or systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B2313/00Compression machines, plant, or systems with reversible cycle not otherwise provided for
    • F25B2313/021Indoor unit or outdoor unit with auxiliary heat exchanger not forming part of the indoor or outdoor unit
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B2313/00Compression machines, plant, or systems with reversible cycle not otherwise provided for
    • F25B2313/021Indoor unit or outdoor unit with auxiliary heat exchanger not forming part of the indoor or outdoor unit
    • F25B2313/0215Indoor unit or outdoor unit with auxiliary heat exchanger not forming part of the indoor or outdoor unit the auxiliary heat exchanger being used parallel to the outdoor heat exchanger during heating operation
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

The present invention relates to field of air conditioning, although existing air-conditioning system meets calm sense and but occurs that indoor temperature distribution is uneven and energy efficiency utilizes low problem, it is proposed a kind of indoor temperature control system that air-conditioning is combined with heat transfer unit (HTU), including outdoor unit and indoor unit, it further include heat transfer unit (HTU), detection unit and control unit, indoor unit connect to form refrigerant flow cycle one with outdoor unit, heat transfer unit (HTU) connect to form refrigerant flow cycle two with outdoor unit, and two circuits respectively use one group of restricting element;Detection unit is for detecting room temperature, the heat transfer temperature of heat transfer unit (HTU) superficial air, the heat transfer temperature of indoor heat exchanger superficial air and the relative humidity of room air in indoor unit;Control unit is used to control operating mode locating for refrigerant flow cycle one and refrigerant flow cycle two respectively according to room temperature, relative humidity, heat transfer temperature and the set temperature of user to promote user experience.The present invention is suitable for the calm sensing control system of air-conditioning.

Description

The indoor temperature control system and method that air-conditioning is combined with heat transfer unit (HTU)
Technical field
The present invention relates to field of air conditioning, in particular to a kind of room temperature control technology.
Background technique
Air conditioner is popularized in consumer home as a kind of domestic indoor temperature control system.Split air conditioner packet Indoor unit and outdoor unit are included, is to be blown a cold wind over outward by air outlet or hot wind is mentioned to interior in existing air conditioner room unit Semen donors or heat, but since cold wind or hot wind are directly blown out from the air outlet of air conditioner, it, can band with wind to user Carry out the uncomfortable feeling of user, influences the usage experience of user.Especially in heating operations, due to being caused with wind to user Chilly sensation must just improve air conditioning exhausting temperature, it is contemplated that outlet air air is constantly spread with room air, to guarantee air-flow temperature Degree keeps user satisfied in arrival user location, it is sometimes desirable to which air outlet temperature will be more than 50 DEG C.Excessively high condensation temperature can make heat pump Cycle efficieny is decreased obviously, while increasing the indoor leaking heat to outdoor, makes user's surrounding air more dry in this way, and efficiency It reduces, user is uncomfortable.When refrigeration, the blowing feeling directly dried causes user's cold and dry skin that user's generation is made not relax Suitable sense.Forced-convection heat transfer necessarily will cause that apparent temperature gradient occurs in indoor temperature field and that temperature distribution is non-uniform is existing As.
To solve the above problems, the Chinese patent that Authorization Notice No. is CN205957314U discloses in a kind of air conditioner chamber Machine, including casing, outlet frame, wind deflector, calm sense air outlet plate and driving mechanism, casing is interior to have air duct, and casing is equipped with Air port;Outlet frame is fixed in casing and the connection air duct;Wind deflector is equipped with the air guide hole being adapted with outlet air mouth-shaped, Calm sense air outlet plate is equipped with multiple apertures, and wind deflector and calm sense air outlet plate are slidably connected on outlet frame;Driving mechanism The connection air duct for driving wind deflector and calm sense air outlet plate can be switched and air outlet.The utility model air outlet is subtracted using aperture The principle of Trimetaphan, is greatly reduced air velocity, although improving blowing feeling, this air-conditioning has significantly caused energy efficiency It reduces, problem that the blowing form of low wind speed not can solve that temperature distribution is non-uniform still.
Separately having publication No. is that the Chinese patent of CN101936580A discloses a kind of capillary network tail-end water source heat pump center Air-conditioning system, including water source heat pump units, capillary network radiation cycle system, fresh air replacement the dehumidifying circulatory system, temperature and humidity control System processed;Water source heat pump units are connected by circulating pump, condensate correcting-distribuing device with the water inlet of capillary network radiation cycle system;Outside If Cooling and Heat Source is identical as surface air cooler inner cavity by circulating pump, water inlet pipe mouth, returned in the Cooling and Heat Source such as peripheral hardware through effluent pipe mouth;Fresh air It is communicated by surface air cooler with the indoor wind outlet after flat plate heat exchanger realizes heat exchange with indoor return air.Such mode The capillary radiation circulatory system although solve the problems, such as blowing, but due to needing individual fresh air dehumidification cyclic system when refrigeration System, outdoor high temperature highly humid air is dry by independent humidity control system, then dry air is blown into interior and is mixed with room air It closes to prevent capillary radiation circulatory system surface from dew occur.It, will although solving the problems, such as indoor radiating surface moisture condensation Hot outdoor air carries out processing and enters the room, and the waste of the energy, whole system scheme are caused while increasing indoor heat load It is at high cost.
Summary of the invention
The technical problems to be solved by the present invention are: overcoming existing air-conditioning system although to meet calm sense but there is interior Temperature distribution is non-uniform and energy efficiency utilizes low problem, proposes the indoor temperature control system that a kind of air-conditioning is combined with heat transfer unit (HTU) System and method.
The present invention solves above-mentioned technical problem, the technical solution adopted is that:
The indoor temperature control system that air-conditioning is combined with heat transfer unit (HTU), including outdoor unit and indoor unit further include Heat transfer unit (HTU), detection unit and control unit, indoor unit include two groups of restricting elements, the indoor unit and outdoor unit Unit connects to form refrigerant flow cycle one, and the heat transfer unit (HTU) connect to form refrigerant flow cycle with outdoor unit Two, refrigerant flow cycle one and refrigerant flow cycle two respectively use one group of restricting element;
The detection unit for detecting room temperature, the heat transfer temperature of heat transfer unit (HTU) superficial air, it is indoor in indoor unit The heat transfer temperature of heat exchanger surface air and the relative humidity of room air, and the information that will test is transmitted to control unit;
Described control unit according to room temperature, relative humidity, heat transfer temperature and the set temperature of user for distinguishing Control operating mode locating for refrigerant flow cycle one and refrigerant flow cycle two.
Preferably, described that refrigerant is controlled according to room temperature, relative humidity, heat transfer temperature and the set temperature of user Operating mode locating for flow cycle one and refrigerant flow cycle two includes: according to the room temperature and relative humidity calculation Dew-point temperature, if the heat transfer temperature of heat transfer unit (HTU) superficial air is less than or equal to indoor heat exchanger surface in dew-point temperature or indoor unit The heat transfer temperature of air is less than or equal to dew-point temperature, then controls operating mode locating for refrigerant flow cycle one as dehumidifying mould Formula, the electric expansion valve closed in refrigerant flow cycle two make refrigerant flow cycle two work in park mode.
Preferably, described that refrigerant is controlled according to room temperature, relative humidity, heat transfer temperature and the set temperature of user If operating mode locating for flow cycle one and refrigerant flow cycle two includes: that set temperature is less than room temperature and the two The absolute value of difference is greater than predetermined value, then controls operating mode locating for refrigerant flow cycle one and refrigerant flow cycle two For refrigeration mode;If set temperature is less than room temperature and the absolute value of the difference of the two is less than or equal to predetermined value, the system of closing Electric expansion valve in cryogen flow cycle one makes the work of refrigerant flow cycle one in park mode, controls refrigerant circulation Circuit two work refrigeration mode and control refrigerant supply state make room temperature and room temperature difference it is absolute Value is less than or equal to predetermined value.
Further, the detection unit is also used to detect the temperature on outdoor heat exchanger surface in outdoor unit, if should Temperature is lower than zero degree, then controls the work of refrigerant flow cycle one in defrosting mode, close the electricity in refrigerant flow cycle two Sub- expansion valve makes the work of refrigerant flow cycle two in park mode.
Preferably, described that refrigerant is controlled according to room temperature, relative humidity, heat transfer temperature and the set temperature of user If operating mode locating for flow cycle one and refrigerant flow cycle two includes: that set temperature is greater than room temperature and the two Difference is greater than predetermined value, then controls operating mode locating for refrigerant flow cycle one and refrigerant flow cycle two as heating mould Formula;If set temperature is greater than room temperature and the difference of the two is less than or equal to predetermined value, close in refrigerant flow cycle one Electric expansion valve make the work of refrigerant flow cycle one in park mode, control the work of refrigerant flow cycle two and heating Mode and the supply state for controlling refrigerant make the difference of room temperature and room temperature be less than or equal to predetermined value.
Further, the detection unit further includes the height detection unit for detecting height above sea level, and the control is single Member is also used to calculate local atmospheric density according to the height above sea level and air themperature that detect, and is calculated according to local atmospheric density Correction factor adjusts the running frequency of air-conditioning and the supply of refrigerant according to correction factor.
Preferably, institute's heat transfer unit (HTU) includes heat-transfer pipe or heat pipe coupler.
The control method for the indoor temperature control system that air-conditioning is combined with heat transfer unit (HTU), includes the following steps:
A, room temperature, the heat transfer temperature of heat transfer unit (HTU) superficial air, indoor heat exchanger superficial air in indoor unit are detected Heat transfer temperature and room air relative humidity;
B, refrigerant circulation is controlled respectively according to room temperature, relative humidity, heat transfer temperature and the set temperature of user Operating mode locating for circuit one and refrigerant flow cycle two.
Preferably, according to the room temperature and relative humidity calculation dew-point temperature, if the biography of heat transfer unit (HTU) superficial air The heat transfer temperature that hot temperature is less than or equal to indoor heat exchanger superficial air in dew-point temperature or indoor unit is less than or equal to dew-point temperature, Then controlling operating mode locating for refrigerant flow cycle one is dehumidification mode, and the electronics closed in refrigerant flow cycle two is swollen Swollen valve makes the work of refrigerant flow cycle two in park mode;
And/or;
If set temperature is less than room temperature and the absolute value of the difference of the two is greater than predetermined value, refrigerant circulation is controlled Operating mode locating for circuit one and refrigerant flow cycle two is refrigeration mode;If set temperature is less than room temperature and the two The absolute value of difference be less than or equal to predetermined value, then the electric expansion valve closed in refrigerant flow cycle one makes refrigerant stream The logical work of circuit one controls the work of refrigerant flow cycle two in refrigeration mode and controls the supply shape of refrigerant in park mode State makes the absolute value of the difference of room temperature and room temperature be less than or equal to predetermined value;
And/or;
The temperature on outdoor heat exchanger surface in outdoor unit is detected, if the temperature is lower than zero degree, controls refrigerant stream In defrosting mode, the electric expansion valve closed in refrigerant flow cycle two makes refrigerant flow cycle two for the logical work of circuit one Work is in park mode;
And/or;
If set temperature is greater than room temperature and the difference of the two is greater than predetermined value, one He of refrigerant flow cycle is controlled Operating mode locating for refrigerant flow cycle two is heating mode;If set temperature is greater than room temperature and the difference of the two is small In being equal to predetermined value, then the electric expansion valve closed in refrigerant flow cycle one makes the work of refrigerant flow cycle one temporary Stop mode, control refrigerant flow cycle two work heating mode and control refrigerant supply state make room temperature with The difference of room temperature is less than or equal to predetermined value.
Further, in the step A further include: detect the height detection unit of height above sea level;It is also wrapped in the step B It includes: local atmospheric density being calculated according to the height above sea level and air themperature detected, and is calculated and is corrected according to local atmospheric density COEFFICIENT K adjusts the running frequency of air-conditioning and the supply of refrigerant according to adjusted coefficient K.
The beneficial effects of the present invention are:
In parallel heat transfer unit (HTU) and relevant connection device on the circuit of the indoor unit of traditional air conditioner, indoor unit with Outdoor unit connects to form refrigerant flow cycle one, and heat transfer unit (HTU) connect to form refrigerant flow cycle with outdoor unit Two;Detection unit detects room temperature, the heat transfer temperature of heat transfer unit (HTU) superficial air, indoor heat exchanger superficial air in indoor unit Heat transfer temperature and room air relative humidity, control unit is according to room temperature, relative humidity, heat transfer temperature and user Set temperature controls operating mode locating for refrigerant flow cycle one and refrigerant flow cycle two respectively.Refrigerant circulation Circuit one and refrigerant flow cycle two respectively use a set of throttling original part;Design may be implemented separate refrigeration agent and circulate back in this way Road one and refrigerant flow cycle two improve energy utilization rate, are realized by the refrigeration and heating of refrigerant flow cycle two Calm sense solves the problems, such as that indoor temperature distribution is non-uniform since any position indoors can be set in heat transfer unit (HTU), two Freeze simultaneously or heat the speed for reaching cooling and warming faster than conventional air-conditioning, while outdoor unit and heat transfer unit (HTU) in a circuit When collective effect, heat exchange area is greater than the heat exchange area of an independent indoor unit, and heat exchange area can be obviously improved greatly steaming Temperature is sent out, whole system cycle efficieny is substantially improved.
Detailed description of the invention
Fig. 1 is the structure chart of the embodiment of the present invention one;
Wherein, 1 is outdoor unit, and 11 be compressor, and 12 be four-way valve, and 13 be outdoor motor and fan, and 14 be outdoor Heat exchanger, 15a are electric expansion valve one, and 15b electric expansion valve two, 16a is control valve one, and 16b is control valve two, and 17a is to cut Only valve one, 17b are shut-off valve two, and 17c is shut-off valve three, and 17d is shut-off valve four, and 18 be fluid reservoir, and 2 be indoor unit, 29a For pipe fitting one, 29b is pipe fitting two, and 23 be indoor fan and fan, and 24 be indoor heat exchanger, and 3 be heat transfer unit (HTU), and 34a is Heat-transfer pipe one, 34b are heat-transfer pipe two, and 39a is pipe fitting three, 39b is pipe fitting four, and 39c is pipe fitting five, and 39d is pipe fitting Six.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, right with reference to the accompanying drawings and embodiments The present invention is further elaborated.
Overcome existing air-conditioning system although to meet calm sense and but occurs that indoor temperature distribution is uneven and energy efficiency is sharp With low problem, the indoor temperature control system and method that a kind of air-conditioning is combined with heat transfer unit (HTU) is proposed.
The indoor temperature control system that air-conditioning is combined with heat transfer unit (HTU), including outdoor unit and indoor unit further include Heat transfer unit (HTU), detection unit and control unit, indoor unit include two groups of restricting elements, the indoor unit and outdoor unit Unit connects to form refrigerant flow cycle one, and the heat transfer unit (HTU) connect to form refrigerant flow cycle with outdoor unit Two, refrigerant flow cycle one and refrigerant flow cycle two respectively use one group of restricting element;
The detection unit for detecting room temperature, the heat transfer temperature of heat transfer unit (HTU) superficial air, it is indoor in indoor unit The heat transfer temperature of heat exchanger surface air and the relative humidity of room air, and the information that will test is transmitted to control unit;
Described control unit according to room temperature, relative humidity, heat transfer temperature and the set temperature of user for distinguishing Control operating mode locating for refrigerant flow cycle one and refrigerant flow cycle two.
Wherein, outdoor unit and indoor unit are traditional air conditioner device, and restricting element may include expansion valve and cut Only valve.In order to save cost, refrigerant flow cycle one and refrigerant flow cycle two can be shared in indoor unit unit Compressor, fluid reservoir, indoor heat exchanger and four-way valve.
It is described to be circulated back according to room temperature, relative humidity, heat transfer temperature and the set temperature of user to control refrigerant Operating mode locating for road one and refrigerant flow cycle two includes: according to the room temperature and relative humidity calculation dew point temperature Degree, if the heat transfer temperature of heat transfer unit (HTU) superficial air is less than or equal to indoor heat exchanger superficial air in dew-point temperature or indoor unit Heat transfer temperature is less than or equal to dew-point temperature, then controlling operating mode locating for refrigerant flow cycle one is dehumidification mode, closes Electric expansion valve in refrigerant flow cycle two makes the work of refrigerant flow cycle two in park mode.Such control mode Cooling stages are applicable to, are dehumidified for preventing ground condensation.
It is described to be circulated back according to room temperature, relative humidity, heat transfer temperature and the set temperature of user to control refrigerant If operating mode locating for road one and refrigerant flow cycle two includes: the difference that set temperature is less than room temperature and the two Absolute value is greater than predetermined value, then controls operating mode locating for refrigerant flow cycle one and refrigerant flow cycle two as refrigeration Mode;If set temperature is less than room temperature and the absolute value of the difference of the two is less than or equal to predetermined value, refrigerant stream is closed Electric expansion valve in logical circuit one makes the work of refrigerant flow cycle one in park mode, controls refrigerant flow cycle two It works in refrigeration mode and controls the supply state of refrigerant the absolute value of difference of room temperature and room temperature is less than Equal to predetermined value.
Further, the detection unit is also used to detect the temperature on outdoor heat exchanger surface in outdoor unit, if should Temperature is lower than zero degree, then controls the work of refrigerant flow cycle one in defrosting mode, close the electricity in refrigerant flow cycle two Sub- expansion valve makes the work of refrigerant flow cycle two in park mode.
Preferably, described that refrigerant is controlled according to room temperature, relative humidity, heat transfer temperature and the set temperature of user If operating mode locating for flow cycle one and refrigerant flow cycle two includes: that set temperature is greater than room temperature and the two Difference is greater than predetermined value, then controls operating mode locating for refrigerant flow cycle one and refrigerant flow cycle two as heating mould Formula;If set temperature is greater than room temperature and the difference of the two is less than or equal to predetermined value, close in refrigerant flow cycle one Electric expansion valve make the work of refrigerant flow cycle one in park mode, control the work of refrigerant flow cycle two and heating Mode and the supply state for controlling refrigerant make the difference of room temperature and room temperature be less than or equal to predetermined value.
Further, the detection unit further includes the height detection unit for detecting height above sea level, and the control is single Member is also used to calculate local atmospheric density according to the height above sea level and air themperature that detect, and is calculated according to local atmospheric density Correction factor adjusts the running frequency of air-conditioning and the supply of refrigerant according to correction factor.
Preferably, institute's heat transfer unit (HTU) includes heat-transfer pipe or heat pipe coupler.
The control method for the indoor temperature control system that air-conditioning is combined with heat transfer unit (HTU), includes the following steps:
A, room temperature, the heat transfer temperature of heat transfer unit (HTU) superficial air, indoor heat exchanger superficial air in indoor unit are detected Heat transfer temperature and room air relative humidity;
B, refrigerant circulation is controlled respectively according to room temperature, relative humidity, heat transfer temperature and the set temperature of user Operating mode locating for circuit one and refrigerant flow cycle two.
Preferably, according to the room temperature and relative humidity calculation dew-point temperature, if the biography of heat transfer unit (HTU) superficial air The heat transfer temperature that hot temperature is less than or equal to indoor heat exchanger superficial air in dew-point temperature or indoor unit is less than or equal to dew-point temperature, Then controlling operating mode locating for refrigerant flow cycle one is dehumidification mode, and the electronics closed in refrigerant flow cycle two is swollen Swollen valve makes the work of refrigerant flow cycle two in park mode;
And/or;
If set temperature is less than room temperature and the absolute value of the difference of the two is greater than predetermined value, refrigerant circulation is controlled Operating mode locating for circuit one and refrigerant flow cycle two is refrigeration mode;If set temperature is less than room temperature and the two The absolute value of difference be less than or equal to predetermined value, then the electric expansion valve closed in refrigerant flow cycle one makes refrigerant stream The logical work of circuit one controls the work of refrigerant flow cycle two in refrigeration mode and controls the supply shape of refrigerant in park mode State makes the absolute value of the difference of room temperature and room temperature be less than or equal to predetermined value;
And/or;
The temperature on outdoor heat exchanger surface in outdoor unit is detected, if the temperature is lower than zero degree, controls refrigerant stream In defrosting mode, the electric expansion valve closed in refrigerant flow cycle two makes refrigerant flow cycle two for the logical work of circuit one Work is in park mode;
And/or;
If set temperature is greater than room temperature and the difference of the two is greater than predetermined value, one He of refrigerant flow cycle is controlled Operating mode locating for refrigerant flow cycle two is heating mode;If set temperature is greater than room temperature and the difference of the two is small In being equal to predetermined value, then the electric expansion valve closed in refrigerant flow cycle one makes the work of refrigerant flow cycle one temporary Stop mode, control refrigerant flow cycle two work heating mode and control refrigerant supply state make room temperature with The difference of room temperature is less than or equal to predetermined value.
Further, in the step A further include: detect the height detection unit of height above sea level;It is also wrapped in the step B It includes: local atmospheric density being calculated according to the height above sea level and air themperature detected, and is calculated and is corrected according to local atmospheric density COEFFICIENT K adjusts the running frequency of air-conditioning and the supply of refrigerant according to adjusted coefficient K.
Embodiment one
As shown in Figure 1, heat transfer unit (HTU) 3 is realized using heat-transfer pipe in the present embodiment, including outdoor unit 1 and indoor unit list Member 2, include in outdoor unit 1 compressor 11, fluid reservoir 18, four-way valve 12, outdoor heat exchanger 14, one 15a of electric expansion valve, One 17a of shut-off valve and control unit for controlling one 17a of compressor 11, one 15a of electric expansion valve and shut-off valve;It further include passing Thermal 3, detection unit and control unit, indoor unit 2 include two groups of restricting elements, indoor unit 2 and outdoor unit list 1 connection of member forms refrigerant flow cycle one, and refrigerant flow cycle one includes following connection relationship: compressor 11 connects liquid storage Tank 18,12 connect compressor 11 of four-way valve, fluid reservoir 18 and outdoor heat exchanger 14 are simultaneously connected to indoor unit list by one 17a of shut-off valve One end of indoor heat exchanger 24 in member, outdoor heat exchanger 14 are another by one 15a of electric expansion valve connection indoor heat exchanger 24 One end.Heat transfer unit (HTU) 3 connect to form refrigerant flow cycle two with outdoor unit 1, refrigerant flow cycle one and refrigerant Flow cycle two respectively uses one group of restricting element;The restricting element that wherein refrigerant flow cycle two uses includes electronic expansion Two 17b of two 15b of valve and shut-off valve, refrigerant flow cycle two include following connection relationship: the connection fluid reservoir 18 of compressor 11, and four 12 connect compressor 11 of port valve, fluid reservoir 18 and outdoor heat exchanger 14 are simultaneously connected to the one of heat transfer unit (HTU) 3 by two 17b of shut-off valve End, outdoor heat exchanger 14 are connected to the other end of heat transfer unit (HTU) 3 by two 15b of electric expansion valve.Two 15b of electric expansion valve and cut-off Two 17b of valve is electrically connected with control unit.The heat transfer unit (HTU) can be laid on the outside of indoor unit and be located at indoor any Position.
Detection unit includes for detecting the temperature sensor one of indoor room temperature, for detecting heat transfer unit (HTU) surface sky The temperature sensor two of the heat transfer temperature of gas, the temperature for detecting the heat transfer temperature of indoor heat exchanger superficial air in indoor unit The humidity sensor of sensor three and the relative humidity for detecting room air, the temperature sensor one, temperature sensor Two, temperature sensor three, humidity sensor are electrically connected with controller, further include for calculating indoor dew in the controller The calculation module of point temperature;The heat transfer unit (HTU), which is located on the outside of indoor unit, is set to indoor any position, heat transfer unit (HTU) One end outdoor heat exchanger is connected to by electric expansion valve two, the other end of heat transfer unit (HTU) is connected to four-way valve by shut-off valve two.
Control unit for controlling respectively according to room temperature, relative humidity, heat transfer temperature and the set temperature of user Operating mode locating for refrigerant flow cycle one and refrigerant flow cycle two.
Control unit is according to the room temperature and relative humidity calculation dew-point temperature, if the biography of heat transfer unit (HTU) superficial air The heat transfer temperature that hot temperature is less than or equal to indoor heat exchanger superficial air in dew-point temperature or indoor unit is less than or equal to dew-point temperature, Then controlling operating mode locating for refrigerant flow cycle one is dehumidification mode, and the electronics closed in refrigerant flow cycle two is swollen Swollen valve makes the work of refrigerant flow cycle two in park mode.According to the room temperature and relative humidity calculation dew-point temperature It can refer to such as the following table 1 dry-bulb temperature dew-point temperature list corresponding with relative humidity and calculate acquisition, can also be used other existing Technology, room temperature are dry-bulb temperature.
1 dry-bulb temperature of table dew-point temperature list corresponding with relative humidity
If set temperature is less than room temperature and the absolute value of the difference of the two is greater than predetermined value, refrigerant circulation is controlled Operating mode locating for circuit one and refrigerant flow cycle two is refrigeration mode;If set temperature is less than room temperature and the two The absolute value of difference be less than or equal to predetermined value, then the electric expansion valve closed in refrigerant flow cycle one makes refrigerant stream The logical work of circuit one controls the work of refrigerant flow cycle two in refrigeration mode and controls the supply shape of refrigerant in park mode State makes the absolute value of the difference of room temperature and room temperature be less than or equal to predetermined value.
Wherein, as shown in figure 1 shown in solid arrow, specific refrigerant circulates back the circulating direction of refrigerant in refrigeration mode The operational process of the heating mode on road one are as follows: in outdoor unit 1, gaseous refrigerant becomes by the compression of compressor 11 as high temperature The gaseous refrigerant of high pressure, by four-way valve 12 enter outdoor heat exchanger 14 radiate after become high temperature and pressure liquid refrigerant into Indoor unit 2 is arrived separately at after entering the liquid refrigerant that one 15a of electric expansion valve expansion decompression is low-temp low-pressure;Indoor unit list In member 2, refrigerant reaches the gaseous state system that atmospheric heat in 24 absorption chamber of indoor heat exchanger is vaporizated into low temperature by two 29b of pipe fitting Cryogen flows back into four-way valve 12 by one 29a of pipe fitting, one 17a of shut-off valve and one 16a of control valve, is finally inhaled into compression The air entry of machine;
The operational process of the heating mode of specific refrigerant flow cycle two are as follows: in outdoor unit 1, gaseous refrigerant The gaseous refrigerant become as high temperature and pressure is compressed by compressor 11, after entering the heat dissipation of outdoor heat exchanger 14 by four-way valve 12 Liquid refrigerant as high temperature and pressure arrives after entering the liquid refrigerant that two 15b of electric expansion valve expansion decompression is low-temp low-pressure Up to heat transfer unit (HTU) 3;In refrigerant flow cycle two, refrigerant arrives separately at heat transfer by three 39a of pipe fitting and four 39b of pipe fitting The gas-liquid two-phase cold-producing medium of low-temp low-pressure is vaporizated into after one 34a of pipe and heat-transfer pipe 2 44 and room air progress heat exchange, then Four 17d of shut-off valve is reached by five 39c of pipe fitting and six 39d of pipe fitting respectively, then flows back into four-way via two 16b of control valve Valve 12 is finally inhaled into the air entry of compressor;The refrigerative circle system of system so can be completed.
The detection unit is also used to detect the temperature on outdoor heat exchanger surface in outdoor unit, if the temperature is lower than zero Degree then controls the work of refrigerant flow cycle one in defrosting mode, and the electric expansion valve closed in refrigerant flow cycle two makes The work of refrigerant flow cycle two is obtained in park mode.
It is described to be circulated back according to room temperature, relative humidity, heat transfer temperature and the set temperature of user to control refrigerant If operating mode locating for road one and refrigerant flow cycle two includes: that set temperature is big greater than the difference of room temperature and the two In predetermined value, then controlling operating mode locating for refrigerant flow cycle one and refrigerant flow cycle two is heating mode;If Set temperature is greater than room temperature and the difference of the two is less than or equal to predetermined value, then closes the electronics in refrigerant flow cycle one Expansion valve makes the work of refrigerant flow cycle one in park mode, control the work of refrigerant flow cycle two heating mode simultaneously The supply state of control refrigerant makes the difference of room temperature and room temperature be less than or equal to predetermined value.
Wherein, as indicated by the dashed arrow in fig. 1, specific refrigerant circulates back the circulating direction of refrigerant in heating mode The operational process of the heating mode on road one are as follows: in outdoor unit 1, gaseous refrigerant becomes by the compression of compressor 11 as high temperature The gaseous refrigerant of high pressure reaches indoor unit 2 by one 17a of shut-off valve respectively by four-way valve 12;Refrigerant flow cycle 1 In, refrigerant is normal temperature high voltage liquid by the cooling heat release of indoor heat exchanger 24, is being that low temperature is low by one 15a of expansion valve decompression Then press liquid is low temperature and low pressure steam by 14 evaporation endothermic of outdoor heat exchanger, then reaches compressor by four-way valve 12 11。
The operational process of the heating mode of specific refrigerant flow cycle two are as follows: outdoor in refrigerant flow cycle two In machine unit 1, gaseous refrigerant compresses the gaseous refrigerant become as high temperature and pressure by compressor 11, is passed through by four-way valve 12 It crosses and two 17b of shut-off valve reaches heat transfer unit (HTU) 3;Refrigerant is normal temperature high voltage liquid by the cooling heat release of heat transfer unit (HTU) 3, is being passed through Two 15b of expansion valve decompression is low temperature and low pressure liquid, is then low temperature and low pressure steam by 14 evaporation endothermic of outdoor heat exchanger, then Compressor 11 is reached by four-way valve 12.The heating cyclic process of system so can be completed.
The detection unit further includes the height detection unit for detecting height above sea level, and described control unit is also used to root Local atmospheric density is calculated according to the height above sea level and air themperature detected, and correction factor is calculated according to local atmospheric density, The running frequency of air-conditioning and the supply of refrigerant are adjusted according to correction factor.
Specific refrigeration work process in actual use can are as follows: starting cooling stages is master based on air conditioner indoor unit unit Cooling and dehumidification function are undertaken, supplemented by heat-transfer pipe is thermally conductive;As temperature and humidity drops to reasonable value, the energy of heat-transfer pipe side is increased Power reduces the ability output of indoor unit;When close to user's set temperature, the output of indoor unit refrigerating capacity is closed, Room temperature is finely adjusted and maintained by heat-transfer pipe radiation tail end, realizes radiation refrigeration, indoor unit is transported at this time with gentle breeze Turn, undertakes acquisition indoor environment data and controlled for outdoor compressor.
The specific heating course of work in actual use can are as follows: outer machine simultaneously carries out heat transfer guard system and indoor unit Heating capacity output, indoor unit starts heating operations by the anti-cold wind mode of standard, as room temperature rises, hot loop at this time Pipe radiating surface temperature also steps up at any time, when close to set temperature, closes the output of indoor unit heating capacity, relies on Heat-transfer pipe radiating surface is completed room temperature fine tuning and is maintained.When outdoor unit reaches defrosting condition, heat transfer tube loop is closed, it can be with Certain heat-transfer pipe radiating surface temperature is kept, indoor unit circuit is opened, using heat in indoor unit suction chamber, is completed Outer machine defrosting.Since radiating surface has certain temperature persistently to provide heat during defrosting, defrost process is reduced due to Indoor Temperature Degree decline, human body chilly sensation improve users'comfort.
Compared with conventional air-conditioning, cooling and warming comfort is not only improved, simultaneously because indoor unit is not after temperature is stablized Work, noise of indoor unit is extremely low, and conventional air-conditioning compressor transmitting sound, structural member sound and refrigerant flowing sound all do not have, this Air-conditioning can solve the nearly all noise pain spot of conventional air-conditioning very well, more can user meet the requirement of sleep.
Embodiment two
The present embodiment is unanimous on the whole in the working principle of embodiment one, has only changed heat transfer unit (HTU) into heat pipe coupler, Heat pipe coupler is the device for connecting heat pipe and the long ruler piping of air-conditioning, and cooling system (heating) ability is transmitted to heat by coupler Pipe, then on the structural plane through heat pipe for thermal conductivity to interior architecture.Now air-conditioned function not only may be implemented, it is such as independent using indoor The linkage of machine and outdoor unit;And the technical solution of complete calm sense may be implemented, it opens heat pipe coupler and carries out heat radiation Exchange, the technical solution are exactly that the radiant heat exchange technology of heat pipe coupler is fully utilized to be freezed or heated, such skill Art scheme not only allows temperature field more uniform, but also fully achieves calm sense, to improve the comfort level of user.Heat pipe The road N can be set in coupler, to guarantee the balance of layout.

Claims (10)

1. the indoor temperature control system that air-conditioning is combined with heat transfer unit (HTU), including outdoor unit and indoor unit, feature exist In further including heat transfer unit (HTU), detection unit and control unit, indoor unit includes two groups of restricting elements, the indoor unit list Member connect to form refrigerant flow cycle one with outdoor unit, and the heat transfer unit (HTU) connect to form refrigerant with outdoor unit Flow cycle two, refrigerant flow cycle one and refrigerant flow cycle two respectively use one group of restricting element;
The detection unit for detecting room temperature, the heat transfer temperature of heat transfer unit (HTU) superficial air, indoor heat exchange in indoor unit The heat transfer temperature of device superficial air and the relative humidity of room air, and the information that will test is transmitted to control unit;
Described control unit for controlling respectively according to room temperature, relative humidity, heat transfer temperature and the set temperature of user Operating mode locating for refrigerant flow cycle one and refrigerant flow cycle two.
2. the indoor temperature control system that air-conditioning as described in claim 1 is combined with heat transfer unit (HTU), which is characterized in that the basis Room temperature, relative humidity, heat transfer temperature and the set temperature of user circulate to control refrigerant flow cycle one and refrigerant Operating mode locating for circuit two includes: according to the room temperature and relative humidity calculation dew-point temperature, if heat transfer unit (HTU) table The heat transfer temperature that the heat transfer temperature of face air is less than or equal to indoor heat exchanger superficial air in dew-point temperature or indoor unit is less than etc. In dew-point temperature, then controlling operating mode locating for refrigerant flow cycle one is dehumidification mode, closes refrigerant flow cycle Electric expansion valve in two makes the work of refrigerant flow cycle two in park mode.
3. the indoor temperature control system that air-conditioning as claimed in claim 1 or 2 is combined with heat transfer unit (HTU), which is characterized in that described Refrigerant flow cycle one and refrigerant are controlled according to room temperature, relative humidity, heat transfer temperature and the set temperature of user If operating mode locating for flow cycle two includes: that set temperature is greater than in advance less than the absolute value of room temperature and the difference of the two Definite value, then controlling operating mode locating for refrigerant flow cycle one and refrigerant flow cycle two is refrigeration mode;If setting Temperature is less than room temperature and the absolute value of the difference of the two is less than or equal to predetermined value, then closes in refrigerant flow cycle one Electric expansion valve makes the work of refrigerant flow cycle one in park mode, controls the work of refrigerant flow cycle two in refrigeration mould Formula and the supply state for controlling refrigerant make the absolute value of the difference of room temperature and room temperature be less than or equal to predetermined value.
4. the indoor temperature control system that air-conditioning as described in claim 1 is combined with heat transfer unit (HTU), which is characterized in that the detection Unit is also used to detect the temperature on outdoor heat exchanger surface in outdoor unit, if the temperature is lower than zero degree, controls refrigerant The work of flow cycle one makes refrigerant flow cycle in defrosting mode, the electric expansion valve closed in refrigerant flow cycle two Two work are in park mode.
5. the indoor temperature control system that air-conditioning as described in claim 1 or 4 is combined with heat transfer unit (HTU), which is characterized in that described Refrigerant flow cycle one and refrigerant are controlled according to room temperature, relative humidity, heat transfer temperature and the set temperature of user If operating mode locating for flow cycle two includes: that set temperature is greater than the difference of room temperature and the two and is greater than predetermined value, Controlling operating mode locating for refrigerant flow cycle one and refrigerant flow cycle two is heating mode;If set temperature is greater than The difference of room temperature and the two is less than or equal to predetermined value, then the electric expansion valve closed in refrigerant flow cycle one to make The work of cryogen flow cycle one controls the work of refrigerant flow cycle two in heating mode and controls refrigerant in park mode Supply state makes the difference of room temperature and room temperature be less than or equal to predetermined value.
6. the indoor temperature control system that air-conditioning as described in claim 1 is combined with heat transfer unit (HTU), which is characterized in that the detection Unit further includes the height detection unit for detecting height above sea level, and described control unit is also used to according to the height above sea level detected Degree and air themperature calculate local atmospheric density, and calculate correction factor according to local atmospheric density, are adjusted according to correction factor The running frequency of air-conditioning and the supply of refrigerant.
7. the indoor temperature control system that air-conditioning as described in claim 1 is combined with heat transfer unit (HTU), which is characterized in that conduct heat dress It sets including heat-transfer pipe or heat pipe coupler.
8. the control method for the indoor temperature control system that air-conditioning as described in claim 1 is combined with heat transfer unit (HTU), feature exist In including the following steps:
A, detect room temperature, the heat transfer temperature of heat transfer unit (HTU) superficial air, in indoor unit indoor heat exchanger superficial air biography The relative humidity of hot temperature and room air;
B, refrigerant flow cycle is controlled according to room temperature, relative humidity, heat transfer temperature and the set temperature of user respectively One and refrigerant flow cycle two locating for operating mode.
9. method according to claim 8, which is characterized in that the step B includes:
According to the room temperature and relative humidity calculation dew-point temperature, if the heat transfer temperature of heat transfer unit (HTU) superficial air is less than etc. The heat transfer temperature of indoor heat exchanger superficial air is less than or equal to dew-point temperature in dew-point temperature or indoor unit, then controls refrigerant Operating mode locating for flow cycle one is dehumidification mode, and the electric expansion valve closed in refrigerant flow cycle two to freeze Agent flow cycle two works in park mode;
And/or;
If set temperature is less than room temperature and the absolute value of the difference of the two is greater than predetermined value, refrigerant flow cycle is controlled One and refrigerant flow cycle two locating for operating mode be refrigeration mode;If set temperature is less than the difference of room temperature and the two The absolute value of value is less than or equal to predetermined value, then the electric expansion valve closed in refrigerant flow cycle one makes refrigerant circulate back The work of road one controls the work of refrigerant flow cycle two in refrigeration mode and controls the supply state of refrigerant and make in park mode The absolute value for obtaining the difference of room temperature and room temperature is less than or equal to predetermined value;
And/or;
The temperature on outdoor heat exchanger surface in outdoor unit is detected, if the temperature is lower than zero degree, refrigerant is controlled and circulates back The work of road one makes refrigerant flow cycle two work in defrosting mode, the electric expansion valve closed in refrigerant flow cycle two In park mode;
And/or;
If set temperature is greater than room temperature and the difference of the two is greater than predetermined value, refrigerant flow cycle one and refrigeration are controlled Operating mode locating for agent flow cycle two is heating mode;If the difference that set temperature is greater than room temperature and the two is less than etc. In predetermined value, then the electric expansion valve closed in refrigerant flow cycle one makes the work of refrigerant flow cycle one in pause mould Formula, the work of control refrigerant flow cycle two is in heating mode and controls the supply state of refrigerant and makes room temperature and indoor The difference of temperature is less than or equal to predetermined value.
10. method as claimed in claim 8 or 9, which is characterized in that in the step A further include: detect the height of height above sea level Spend detection unit;In the step B further include: local atmospheric density is calculated according to the height above sea level and air themperature detected, And adjusted coefficient K is calculated according to local atmospheric density, the running frequency of air-conditioning and the confession of refrigerant are adjusted according to adjusted coefficient K It answers.
CN201811150940.3A 2018-09-29 2018-09-29 The indoor temperature control system and method that air-conditioning is combined with heat transfer unit (HTU) CN109357430A (en)

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Publication number Priority date Publication date Assignee Title
JP2007024417A (en) * 2005-07-19 2007-02-01 Daikin Ind Ltd Air conditioner
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CN104487774A (en) * 2013-07-26 2015-04-01 生态工厂有限公司 Air conditioning device and method for operating air conditioning device
CN104764097A (en) * 2015-04-08 2015-07-08 珠海格力电器股份有限公司 Air-conditioning system, air-conditioner and control method thereof
CN106765967A (en) * 2016-12-29 2017-05-31 北京海林节能科技股份有限公司 A kind of dew-point temperature control method and device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007024417A (en) * 2005-07-19 2007-02-01 Daikin Ind Ltd Air conditioner
CN201935336U (en) * 2011-01-13 2011-08-17 帝思迈环境设备(上海)有限公司 Temperature controller for radiant cooling and heating
CN103328895A (en) * 2011-01-19 2013-09-25 大金工业株式会社 Air conditioner
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