CN105318522B - Heat exchange structure, air-conditioning system and its control method in a kind of air-conditioning system room - Google Patents

Heat exchange structure, air-conditioning system and its control method in a kind of air-conditioning system room Download PDF

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Publication number
CN105318522B
CN105318522B CN201510761027.7A CN201510761027A CN105318522B CN 105318522 B CN105318522 B CN 105318522B CN 201510761027 A CN201510761027 A CN 201510761027A CN 105318522 B CN105318522 B CN 105318522B
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China
Prior art keywords
heat exchanger
air
conditioning
indoor
indoor heat
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CN201510761027.7A
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Chinese (zh)
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CN105318522A (en
Inventor
刘志孝
颜圣绿
王磊
张�浩
刘伯春
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Publication of CN105318522A publication Critical patent/CN105318522A/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30Arrangement or mounting of heat-exchangers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/30Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83Control 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63Electronic processing
    • F24F11/65Electronic processing for selecting an operating mode

Abstract

The present invention relates to heat exchange structures in a kind of air-conditioning system room, including heat radiation type indoor heat exchanger and the second indoor heat exchanger, are only provided with indoor fan in second indoor heat exchanger;The heat radiation type indoor heat exchanger and the second indoor heat exchanger are in parallel or in series.Air-conditioning system provided by the invention, indoor unit add plate heat exchanger by the way of in parallel or series, keep temperature by plate heat exchanger after so that temperature is reached setting value, indoor fan are closed, to realize the purpose of energy-saving and noise-reducing.The comfort of air-conditioning system is set to get a promotion.

Description

Heat exchange structure, air-conditioning system and its control method in a kind of air-conditioning system room
Technical field
The present invention relates to apparatus of air conditioning technical field, heat exchange structure, air-conditioning system in especially a kind of air-conditioning system room System and its control method.
Background technique
Air-conditioned room original room load is big, and operation of air conditioner is in maximum speed oepration at full load, as runing time is prolonged Long, room load demand reduces, and air-conditioning revolving speed is in low speed state operation at this time, this is the fortune of convertible frequency air-conditioner common at present Row logic, depending on frequency machine by intermittent startup-shutdown meet room load variation.The varying duty control mode of both modes The operating of blower long period is required, operation power consumption is big, and the big comfort of noise is bad.
Summary of the invention
In view of this, the purpose of the present invention is to provide heat exchange structure, air-conditioning system and its controls in a kind of air-conditioning system room Method processed, to solve the technical problems such as air-conditioning system power consumption is big in the prior art, noise is big.
According to the first aspect of the invention, it provides in a kind of air-conditioning system room and is changed in heat exchange structure, including heat radiation type room Hot device and the second indoor heat exchanger are only provided with indoor fan in second indoor heat exchanger;In heat radiation type room Heat exchanger and the second indoor heat exchanger are in parallel or in series;
The heat radiation type indoor heat exchanger and the second indoor heat exchanger are in parallel, in the heat radiation type indoor heat exchanger Side is provided with first throttle valve, and the side of second indoor heat exchanger is provided with second throttle;
The heat radiation type indoor heat exchanger is plate heat exchanger, and second indoor heat exchanger is fin-tube type heat exchanger, When the air-conditioning system carries out underrun, the first throttle valve opening increases, and the second throttle aperture is smaller, The indoor fan is closed.
Preferably, the heat radiation type indoor heat exchanger is connected with the second indoor heat exchanger, in heat radiation type room Third throttle valve is provided on the connecting pipeline of heat exchanger and the second indoor heat exchanger.
Preferably, the heat radiation type indoor heat exchanger and the second indoor heat exchanger are respectively arranged with one.
Preferably, on the wall of the heat radiation type indoor heat exchanger setting indoors.
According to the second aspect of the invention, a kind of air-conditioning system, including above-mentioned indoor heat exchange structure are provided.
According to the third aspect of the invention we, a kind of control method of above-mentioned air-conditioning system is provided, the air-conditioning system has Heavy-duty service mode and underrun mode,
In the heavy-duty service mode, the indoor fan is opened;
In the underrun mode, the indoor fan is closed.
Preferably, the heat radiation type indoor heat exchanger is in parallel with the second indoor heat exchanger,
When the air-conditioning system is in heavy-duty service mode, the first throttle valve opening is smaller, second throttle Aperture is larger, and the indoor fan is opened;
When the air-conditioning system is in underrun mode, the first throttle valve opening increases, second throttle Aperture is smaller, and the indoor fan is closed.
Preferably, the heat radiation type indoor heat exchanger and the series connection of the second indoor heat exchanger,
When the air-conditioning system is in heavy-duty service mode, the third throttle valve opening is larger, the interior wind Machine is opened;
When the air-conditioning system is in underrun mode, the third throttle valve opening is larger, the interior wind Organ closes.
It preferably, is heavy-duty service mode when the air-conditioning system just starts, the temperature was then adjusted to turn after set temperature It is changed to underrun mode;Heavy-duty service mould is converted to when actual temperature and set temperature difference are more than setting deviation Formula.
Preferably, the deviation that sets is 0.5~2 DEG C.
Air-conditioning system provided by the invention, indoor unit add plate heat exchanger by the way of in parallel or series, make temperature Reach and temperature is kept by plate heat exchanger after setting value, indoor fan is closed, to realize the purpose of energy-saving and noise-reducing.Make air-conditioning The comfort of system gets a promotion.
Detailed description of the invention
By referring to the drawings to the description of the embodiment of the present invention, above-mentioned and other purposes of the invention, feature and Advantage will be apparent from, in the accompanying drawings:
Fig. 1 is air-conditioning system first embodiment schematic diagram of the present invention;
Fig. 2 is air-conditioning system second embodiment schematic diagram of the present invention;
Fig. 3 is air-conditioning system work flow diagram of the present invention.
Specific embodiment
The various embodiments that the present invention will be described in more detail that hereinafter reference will be made to the drawings.In various figures, identical element It is indicated using same or similar appended drawing reference.For the sake of clarity, the various pieces in attached drawing are not necessarily to scale.
As shown in Figure 1, 2, air-conditioning system provided by the invention includes indoor unit and outdoor unit, and the outdoor unit includes compression Machine 1, four-way reversing valve 2, outdoor heat exchanger 3, the outlet of the compressor 1 are connected to the first port of the four-way reversing valve 2, The entrance of the compressor 1 is connected to the third port of the four-way reversing valve 2;The second port of the four-way reversing valve 2 connects It is connected to the first end of the outdoor heat exchanger 3, the second end of the outdoor heat exchanger 3 is connect with the indoor unit first end, institute Indoor unit second end is stated to connect with the 4th port of four-way reversing valve 2.
The indoor unit includes heat radiation type indoor heat exchanger 4, the second indoor heat exchanger 5 and throttle valve, it is preferable that described Heat radiation type indoor heat exchanger 4 is plate heat exchanger, and second indoor heat exchanger 5 is fin-tube type heat exchanger.The second Room Interior heat exchanger 5 is additionally provided with indoor fan 51.The heat radiation type indoor heat exchanger 4 and the second indoor heat exchanger 5 are mutually indepedent Setting, the heat radiation type indoor heat exchanger 4 setting is indoors on wall, it is preferable that for indoor beauty, house desigh or Person carries out installation site and piping connection space that the heat radiation type indoor heat exchanger 4 need to be reserved when interior decoration.The heat Radial pattern indoor heat exchanger 4 and the second indoor heat exchanger 5 can be selected two different modes and be attached, and can be by controlling institute It states heat radiation type indoor heat exchanger 4 and different operating mould is realized to different indoor loads from the working condition of the second indoor heat exchanger 5 Formula, and then play the purpose of energy-saving and noise-reducing.
The workflow of system can be such that temperature quickly reaches as shown in figure 3, be heavy-duty service mode when system just starts To setting value, it is converted into underrun mode after temperature reaches setting value, while detecting temperature value, if temperature and setting value Deviation be more than setting deviation when, system is transformed into heavy-duty service mode, if be not above setting deviation if keep low Load operation mode.Preferably, the deviation that sets is 0.5~2 DEG C.
The heat radiation type indoor heat exchanger 4 and the specific connection type of the second indoor heat exchanger 5 and its corresponding control Method is respectively as follows:
Embodiment one:
As shown in Figure 1, the heat radiation type indoor heat exchanger 4 is in parallel with the second indoor heat exchanger 5: heat radiation type room The first end of interior heat exchanger 4 is connected to the second end of the first throttle valve 6, and the first end of second indoor heat exchanger 5 connects It is connected to the second end of the second throttle 7, the first end of the first throttle valve 6 and second throttle 7 is connected to described The second end of outdoor heat exchanger 3;The second end of the heat radiation type indoor heat exchanger 4 and the second indoor heat exchanger 5 is connected to 4th port of the four-way reversing valve 2.
Control method:
When needing to freezing in room, just system is high loaded process mode when starting, the of the four-way reversing valve 2 Single port is connected with second port, and third port is connected with the 4th port, and the high pressure gaseous being discharged in the compressor 1 is cold Matchmaker enters the outdoor heat exchanger 3 and condenses heat release, and the outdoor fan 31 of the outdoor heat exchanger 3 is opened and is in high rotary speed working State enhances the heat transfer effect of the outdoor heat exchanger 3, and 6 aperture of first throttle valve is smaller, and the second throttle 7 is opened Spend larger, refrigerant primarily enters 5 evaporation endothermic of the second indoor heat exchanger, and the indoor fan 51 is opened, described in enhancing The heat transfer effect of second indoor heat exchanger 5 realizes indoor fast cooling.After room temperature is reduced to set temperature, system turns It is changed to low load operation mode, 6 aperture of first throttle valve increases, and 7 aperture of second throttle reduces, and simultaneously closes off institute Indoor fan 51 is stated, the outdoor fan 31 is converted to low speed state, and the compressor 1 is converted to low speed state, at this point, Refrigerant keeps room in the mainly evaporation endothermic in the heat radiation type indoor heat exchanger 4, by the heat radiation type indoor heat exchanger 4 Interior temperature.Due to the indoor fan 51 close, the outdoor fan 31 and 1 revolving speed of compressor are lower, thus system energy consumption compared with Low and indoor without noise, comfort level is preferable.
When detecting room temperature and set temperature deviation is more than setting deviation, system is again converted to high load capacity fortune Rotary-die type is again converted to low load operation mode after reaching set temperature.
When needing to heating in room, switch the on state of the four-way reversing valve 2, makes the four-way reversing valve 2 First port be connected with the 4th port, second port is connected with third port.Heavy-duty service mode and underrun mould It is identical when the first throttle valve 6 under formula, second throttle 7, the working condition of indoor fan 51 and outdoor fan 31 are with refrigeration.
Embodiment two:
As shown in Fig. 2, the heat radiation type indoor heat exchanger 4 is connected with the second indoor heat exchanger 5: heat radiation type room The first end of interior heat exchanger 4 is connected to the second end of the third throttle valve 8, and the first end of the third throttle valve 8 is connected to The second end of the outdoor heat exchanger 3;The second end of the heat radiation type indoor heat exchanger 4 is connected to heat exchange in the second Room The first end of device 5, the second end of second indoor heat exchanger 5 are connected to the 4th port of the four-way reversing valve 2.
Control method:
When needing to freezing in room, just system is high loaded process mode when starting, the of the four-way reversing valve 2 Single port is connected with second port, and third port is connected with the 4th port, and the gaseous coolant being discharged in the compressor 1 enters institute It states outdoor heat exchanger 3 and condenses heat release, the outdoor fan 31 of the outdoor heat exchanger 3 is opened and is in high rotary speed working state, increases The heat transfer effect of the strong outdoor heat exchanger 3,8 aperture of third throttle valve is larger, and refrigerant successively enters the heat radiation type 5 evaporation endothermic of indoor heat exchanger 4 and the second indoor heat exchanger, and the indoor fan 51 is opened, second indoor heat exchanger 5 Heat exchange efficiency it is higher, the purpose of indoor fast cooling is mainly realized by second indoor heat exchanger 5.When room temperature drops After set temperature, system is converted to low load operation mode, and 8 aperture of third throttle valve reduces or keep former aperture, The indoor fan 51 is closed, the outdoor fan 31 is converted to low speed state, and the compressor 1 is converted to slow-speed of revolution shape State.Since the indoor fan 51 is closed at this time, the heat exchange efficiency of second indoor heat exchanger 5 is lower, described mainly by institute It states heat radiation type indoor heat exchanger 4 and keeps room temperature.Since the indoor fan 51 is closed, the outdoor fan 31 and compression 1 revolving speed of machine is lower, so system energy consumption is lower, and indoor without noise, comfort level is preferable.
When the deviation for detecting room temperature and set temperature is more than setting deviation, system is again converted to high load capacity Operation mode is again converted to low load operation mode after reaching set temperature.
When needing to heating in room, switch the on state of the four-way reversing valve 2, makes the four-way reversing valve 2 First port be connected with the 4th port, second port is connected with third port.Heavy-duty service mode and underrun mould The third throttle valve 8 under formula, indoor fan 51, outdoor fan 31 and compressor 1 working condition with refrigeration when it is identical.
The heat radiation type indoor heat exchanger 4 is arranged by machine indoors in air-conditioning system of the present invention, and controls the throttling The working condition of valve and indoor fan 51, outdoor fan 31 and compressor 1 realizes the heavy-duty service mode and underload of system Operational mode.It can be switched between two kinds of operational modes according to environment temperature, and low energy consumption when underrun, it is noiseless, Improve the comfort of air-conditioning system.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.
Finally, it should be noted that obviously, the above embodiment is merely an example for clearly illustrating the present invention, and simultaneously The non-restriction to embodiment.For those of ordinary skill in the art, it can also do on the basis of the above description Other various forms of variations or variation out.There is no necessity and possibility to exhaust all the enbodiments.And thus drawn The obvious changes or variations that Shen goes out are still in the protection scope of this invention.

Claims (10)

1. heat exchange structure in a kind of air-conditioning system room, which is characterized in that including being changed in heat radiation type indoor heat exchanger and second Room Hot device is only provided with indoor fan in second indoor heat exchanger;In the heat radiation type indoor heat exchanger and second Room Heat exchanger is in parallel or in series;
When the heat radiation type indoor heat exchanger and the second indoor heat exchanger parallel connection, in the heat radiation type indoor heat exchanger Side is provided with first throttle valve, and the side of second indoor heat exchanger is provided with second throttle;
The heat radiation type indoor heat exchanger is plate heat exchanger, and second indoor heat exchanger is fin-tube type heat exchanger, works as institute When stating air-conditioning system progress underrun, the first throttle valve opening increases, and the second throttle aperture is smaller, described Indoor fan is closed.
2. heat exchange structure in air-conditioning system room according to claim 1, which is characterized in that exchange heat in heat radiation type room Device is connected with the second indoor heat exchanger, is set on the connecting pipeline of the heat radiation type indoor heat exchanger and the second indoor heat exchanger It is equipped with third throttle valve.
3. heat exchange structure in -2 described in any item air-conditioning system rooms according to claim 1, which is characterized in that the heat radiation type Indoor heat exchanger and the second indoor heat exchanger are respectively arranged with one.
4. heat exchange structure in -2 described in any item air-conditioning system rooms according to claim 1, which is characterized in that the heat radiation type On the wall of indoor heat exchanger setting indoors.
5. a kind of air-conditioning system, which is characterized in that including the described in any item indoor heat exchange structures of claim 1-4.
6. a kind of control method of air-conditioning system described in claim 5, which is characterized in that the air-conditioning system has high load capacity Operational mode and underrun mode,
In the heavy-duty service mode, the indoor fan is opened;
In the underrun mode, the indoor fan is closed.
7. air conditioner system control method according to claim 6, which is characterized in that the heat radiation type indoor heat exchanger with Second indoor heat exchanger is in parallel,
When the air-conditioning system is in heavy-duty service mode, the first throttle valve opening is smaller, second throttle aperture Larger, the indoor fan is opened;
When the air-conditioning system is in underrun mode, the first throttle valve opening increases, second throttle aperture Smaller, the indoor fan is closed.
8. air conditioner system control method according to claim 6, which is characterized in that the heat radiation type indoor heat exchanger and The series connection of second indoor heat exchanger,
When the air-conditioning system is in heavy-duty service mode, the third throttle valve opening is larger, and the indoor fan is opened It opens;
When the air-conditioning system is in underrun mode, the third throttle valve opening is larger, and the indoor fan closes It closes.
9. air conditioner system control method according to claim 7 or 8, which is characterized in that when the air-conditioning system just starts For heavy-duty service mode, the temperature was then adjusted to underrun mode is converted to after set temperature;When actual temperature and setting Temperature difference is converted to heavy-duty service mode when being more than setting deviation.
10. air conditioner system control method according to claim 9, which is characterized in that the deviation that sets is 0.5~2 ℃。
CN201510761027.7A 2015-11-09 2015-11-09 Heat exchange structure, air-conditioning system and its control method in a kind of air-conditioning system room Active CN105318522B (en)

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105928063A (en) * 2016-04-28 2016-09-07 珠海格力电器股份有限公司 Air-conditioner and control method
CN106196279A (en) * 2016-07-11 2016-12-07 珠海格力电器股份有限公司 A kind of indoor apparatus of air conditioner, air-conditioner and control method thereof and control system
CN106440454B (en) * 2016-08-31 2019-08-13 珠海格力电器股份有限公司 The control method of air-conditioning system and air-conditioning system
CN106705231A (en) * 2017-01-16 2017-05-24 海信(山东)空调有限公司 Air conditioner indoor machine assembly, refrigerant circulatory system as well as control method and control device of refrigerant circulatory system
CN110715423B (en) * 2019-10-17 2021-06-18 广东美的制冷设备有限公司 Air conditioner, control method and device thereof, electronic equipment and storage medium

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CN205090588U (en) * 2015-11-09 2016-03-16 珠海格力电器股份有限公司 Indoor heat transfer structure of air conditioning system and air conditioning system

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JP2007024417A (en) * 2005-07-19 2007-02-01 Daikin Ind Ltd Air conditioner
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CN102734885A (en) * 2012-06-29 2012-10-17 广东美的电器股份有限公司 Serial air conditioner and temperature regulating box all-in-one machine and operation control method thereof
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