CN107143917A - A kind of air-conditioning and its control method - Google Patents
A kind of air-conditioning and its control method Download PDFInfo
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- CN107143917A CN107143917A CN201710304329.0A CN201710304329A CN107143917A CN 107143917 A CN107143917 A CN 107143917A CN 201710304329 A CN201710304329 A CN 201710304329A CN 107143917 A CN107143917 A CN 107143917A
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- heat exchanger
- conditioning
- compressor
- suction
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 99
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000006978 adaptation Effects 0.000 claims abstract description 84
- 239000003507 refrigerant Substances 0.000 claims description 73
- 238000010438 heat treatment Methods 0.000 claims description 27
- 230000005855 radiation Effects 0.000 claims description 22
- 230000033228 biological regulation Effects 0.000 claims description 15
- 230000009467 reduction Effects 0.000 claims description 8
- 239000007788 liquid Substances 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 14
- 230000006835 compression Effects 0.000 description 13
- 238000007906 compression Methods 0.000 description 13
- 230000001276 controlling effect Effects 0.000 description 13
- 230000006641 stabilisation Effects 0.000 description 8
- 238000011105 stabilization Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000001816 cooling Methods 0.000 description 7
- 238000004781 supercooling Methods 0.000 description 6
- 238000009833 condensation Methods 0.000 description 5
- 230000005494 condensation Effects 0.000 description 5
- 239000002826 coolant Substances 0.000 description 4
- 230000006837 decompression Effects 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 238000013021 overheating Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- 238000012795 verification Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of air-conditioning and its control method, the air-conditioning includes：Compressor, heat exchanger, heat exchanger and radiant panel；Wherein, radiant panel and heat exchanger, are connected by first and second port of heat exchanger；The suction end of the compressor, adaptation is connected to the 3rd port of the heat exchanger；The exhaust end of the compressor, adaptation is connected to one in the heat exchanger and the radiant panel；4th port of the heat exchanger, adaptation is connected to another in the heat exchanger and the radiant panel；Pipeline between first and second port of heat exchanger, the pipeline between third and fourth port of heat exchanger is exchanged heat.The solution of the present invention, suction superheat in the prior art can be overcome it cannot be guaranteed that, cause compressor to there is the defect such as liquid hammer and exchange capability of heat difference, realize that suction superheat can guarantee that, will not cause compressor liquid hammer and the good beneficial effect of exchange capability of heat.
Description
Technical field
The invention belongs to air-conditioning technical field, and in particular to a kind of air-conditioning and its control method, more particularly to a kind of radiation
The control method of air-conditioning system and the air-conditioning system.
Background technology
Radiation cooling (or heating), can be the temperature on one or more surfaces in reduction (or rise) building enclosure inner surface
Degree, forms cold (or heat) radiating surface, is carried out by the radiant heat exchange of radiating surface and human body, furniture and building enclosure remaining surface
The technical method of cooling (or heating).Wherein, radiating surface, can be by setting cold (or heat) pipeline in building enclosure, also can be
Ceiling or wall outer surface add radiant panel to realize.Due to the change of radiating surface and building enclosure and furniture surface temperature, lead
Their heat convections between air are caused to strengthen, enhancing cooling (or heating) effect.In this technology, in general, radiation
Heat exchange amount accounts for more than the 50% of total heat exchange amount.
Air-conditioning system, as a kind of energy-saving air conditioning system, can be combined with low energy consumption or green building, be had well
Good application prospect.Air-conditioning system has the advantages that calm sense, low noise, high-comfort, energy-conservation.In the market
Air-conditioning system, be mostly that refrigerating medium is made using water, the hot and cold amount that source pump is produced be delivered to by indoor spoke by water
Penetrate plate.But due to adding a water circulation, cause the heat exchange of system to lose increase.
In order to reduce loss, existing air-conditioning system is generally integrated system, single small volume it is easy for installation
Radiation air-conditioner is more rare.If directly using refrigerant to the hot and cold amount of indoor conveying, water system can be saved, system effect is improved
Rate, realizes system compact, installs judicial convenience.But radiation mode exchange capability of heat is poor, it is impossible to ensure the suction superheat of compressor,
The reliability of influence system.
In the prior art, there is suction superheat it cannot be guaranteed that, cause compressor exist liquid hammer and exchange capability of heat difference etc. lack
Fall into.
The content of the invention
It is an object of the present invention to for drawbacks described above there is provided a kind of air-conditioning and its control method, to solve prior art
Middle air-conditioning system directly using compressor during refrigerant hot and cold to indoor conveying amount suction superheat it cannot be guaranteed that ask
Topic, reaches the effect that suction superheat can guarantee that.
The present invention provides a kind of air-conditioning, including：Compressor, heat exchanger, heat exchanger and radiant panel；Wherein, the radiation
Plate and the heat exchanger, are connected by first and second port adaptation of the heat exchanger；The suction end of the compressor, adaptation
It is connected to the 3rd port of the heat exchanger；The exhaust end of the compressor, adaptation is connected to the heat exchanger and the spoke
One penetrated in plate；4th port of the heat exchanger, adaptation is connected to another in the heat exchanger and the radiant panel
It is individual；Pipeline between first and second port of the heat exchanger, the pipeline between third and fourth port of the heat exchanger
Exchanged heat.
Alternatively, in addition to：Four-way reversing valve；First valve port of the four-way reversing valve, adaptation is connected to the compression
The exhaust end of machine；Second valve port of the four-way reversing valve, adaptation is connected to the heat exchanger；The 3rd of the four-way reversing valve
Valve port, adaptation is connected to the 4th port of the heat exchanger；4th valve port of the four-way reversing valve, adaptation is connected to described
Radiant panel.
Alternatively, in addition to：At least one of first throttle element and the second restricting element；Wherein, when the air-conditioning bag
When including the first throttle element and second restricting element, the first throttle element, adaptation is arranged on the heat exchange
In pipeline between the first port of device and the radiant panel；When the air-conditioning heating is run, the first throttle element
Flow aperture is its upper threshold；Second restricting element, adaptation be arranged on the second port of the heat exchanger with it is described
In pipeline between heat exchanger；When the air conditioner refrigerating is run, the flow aperture of second restricting element is in its threshold value
Limit；Or, when the air-conditioning includes the first throttle element or second restricting element, the air-conditioning also includes：Multiple-way valve；
The multiple-way valve is adapted to setting with the first throttle element or second restricting element, for the difference fortune in the air-conditioning
In row mode, the order of connection of any restricting element of adaptation regulation.
Alternatively, in addition to：First temperature sensor and second temperature sensor；Wherein, first temperature sensor,
For the first suction temperature of the suction end for obtaining the compressor；The second temperature sensor, for obtaining the four-way
Second suction temperature of the 3rd valve port of reversal valve.
Alternatively, in addition to：Controller；When the air-conditioning also includes the first temperature sensor, second temperature sensor,
The controller, is adapted to setting, for true with the compressor, first temperature sensor and second temperature sensor respectively
Whether fixed first suction temperature is less than or equal to second suction temperature；And, when first suction temperature is less than
Or during equal to second suction temperature, the rotating speed of the blower fan of the adaptation regulation air-conditioning.
Alternatively, in addition to：Controller；When the air-conditioning is also included in first throttle element and the second restricting element extremely
In few a period of time, the controller is additionally operable to the aperture for adjusting the first throttle element or second restricting element, to pass through
The refrigerant temperature of first and second port of the heat exchanger is controlled, the suction superheat to the compressor is controlled.
Alternatively, wherein, the compressor, adaptation be arranged at outer pusher side；And/or, the radiant panel, adaptation is arranged at interior
Pusher side.
Match with above-mentioned air-conditioning, further aspect of the present invention provides a kind of control method of air-conditioning, including：Based on above institute
The air-conditioning stated, obtains the first suction temperature of the suction end of the compressor, and obtain the 4th port of the heat exchanger
Second suction temperature；Determine whether first suction temperature is less than or equal to second suction temperature；And, when described
When one suction temperature is less than or equal to second suction temperature and the air-conditioning and includes blower fan, the adaptation regulation air-conditioning
The rotating speed of blower fan.
Alternatively, in addition to：When the air-conditioning also includes at least one of first throttle element and the second restricting element
When, adjust the aperture of the first throttle element or second restricting element, with by control the heat exchanger first,
The refrigerant temperature of Two-port netwerk, the suction superheat to the compressor is controlled.
Alternatively, the rotating speed of the blower fan of the adaptation regulation air-conditioning, including：Based on default reduction speed, to the wind
First current rotating speed of machine is reduced；During being reduced to the described first current rotating speed, determine that described first inhales
Whether temperature degree is changed into more than second suction temperature；And, when first suction temperature is changed into more than described
During two suction temperatures, determine that the compressor now operates on the suction superheat flex point of itself；Obtain the compressor operating
The second current rotating speed of the blower fan when suction superheat flex point of itself, and the described second current rotating speed is defined as described
The rotating speed of target of blower fan.
Alternatively, the rotating speed of the blower fan of the adaptation regulation air-conditioning, in addition to：Based on default increase rate, to described
3rd current rotating speed of blower fan is raised；During elevated to the described 3rd current rotating speed progress, described first is determined
Whether suction temperature is changed into more than second suction temperature；And, when first suction temperature is changed into more than described
During the second suction temperature, determine that the compressor now operates on the suction superheat flex point of itself；Obtain the compressor fortune
4th current rotating speed of row blower fan when the suction superheat flex point of itself, and the 4th current rotating speed is defined as institute
State the rotating speed of target of blower fan.
Alternatively, when the air-conditioning includes at least one of first throttle element and the second restricting element, in addition to：
When the air-conditioning heating is run, the flow aperture of the first throttle element is its upper threshold；When air conditioner refrigerating fortune
During row, the flow aperture of second restricting element is its upper threshold.
The solution of the present invention, in directly amount hot and cold to indoor conveying using refrigerant, by adjusting the rotating speed of blower fan, control
The heat exchange amount of two strands of refrigerants in heat exchanger, when solving air-conditioning system directly using hot and cold to the indoor conveying amount of refrigerant
The problem of compressor air suction degree of superheat can not be ensured (i.e. radiation mode exchange capability of heat is poor), it is ensured that the compressor air suction degree of superheat, is carried
The reliability of high system.
Further, the solution of the present invention, can be with by controlling the opening sequence of first throttle element and the second restricting element
It is the refrigerant before throttling to ensure the refrigerant for flowing through heat exchanger, further lifts exchange capability of heat.
Further, the solution of the present invention, by directly using refrigerant to the hot and cold amount of indoor conveying, saves existing radiation empty
Water system in adjusting system, realizes system compact, installs judicial convenience；And excessive cost input will not be increased, it is easy to use
Property is good.
Thus, the solution of the present invention, by heat exchanger, makes compressor suction side refrigerant be changed with the refrigerant after system condensing
Heat, control compressor suction superheat, solve in the prior art air-conditioning system directly using refrigerant to indoor conveying it is cold,
The problem of can not ensuring the compressor air suction degree of superheat during heat so that, overcome suction superheat in the prior art it cannot be guaranteed that, lead
Cause compressor exist liquid hammer and exchange capability of heat difference defect, realize suction superheat can guarantee that, will not cause compressor liquid hammer and
The good beneficial effect of exchange capability of heat.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
Obtain it is clear that or being understood by implementing the present invention.
Below by drawings and examples, technical scheme is described in further detail.
Brief description of the drawings
Fig. 1 is the structural representation of an embodiment of the air-conditioning of the present invention；
Fig. 2 is the refrigerating operaton principle schematic of an embodiment of the air-conditioning of the present invention；
Fig. 3 is the heating operation principle schematic of an embodiment of the air-conditioning of the present invention；
Fig. 4 is the schematic flow sheet of an embodiment of the control method of the air-conditioning of the present invention；
Fig. 5 reduces the schematic flow sheet of an embodiment of rotation speed of fan for adaptation in the method for the present invention；
Fig. 6 raises the schematic flow sheet of an embodiment of rotation speed of fan for adaptation in the method for the present invention.
With reference to accompanying drawing, reference is as follows in the embodiment of the present invention：
The outer machines of 10-；11- compressors；12- four-way reversing valves (Q1 is exhaust end, and Q2 is suction end)；13- heat exchangers；
The temperature sensors of 14- first；15- second temperature sensors；16- first throttle elements；The restricting elements of 17- second；18- pipe wings are changed
Hot device；19- blower fans；Machine in 20-；21- radiant panels.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the specific embodiment of the invention and
Technical solution of the present invention is clearly and completely described corresponding accompanying drawing.Obviously, described embodiment is only the present invention one
Section Example, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not doing
Go out the every other embodiment obtained under the premise of creative work, belong to the scope of protection of the invention.
There is provided the knot of a kind of air-conditioning, as shown in Figure 1 an embodiment of the device of the present invention for embodiments in accordance with the present invention
Structure schematic diagram.The air-conditioning can include：Compressor 11, heat exchanger 13, heat exchanger and radiant panel 21.
Wherein, the radiant panel 21 and the heat exchanger, are connected by first and second port adaptation of the heat exchanger 13
Connect；The suction end of the compressor 11, adaptation is connected to the 3rd port of the heat exchanger 13；The exhaust of the compressor 11
End, adaptation is connected to one in the heat exchanger and the radiant panel 21；4th port of the heat exchanger 13, adaptation connects
It is connected to another in the heat exchanger and the radiant panel 21；Pipeline between first and second port of the heat exchanger 13,
Pipeline between third and fourth port of the heat exchanger 13 is exchanged heat.
For example：The 4th port (i.e. d mouthfuls) of heat exchanger 13 is connected to radiant panel 21 or pipe wing heat exchanger 18, compressor 11
Exhaust end be connected to pipe wing heat exchanger 18 or radiant panel 21.
For example：The air-conditioning, can be all-in-one.For example：Compressor 11 and radiant panel 21 can be set with integral type.
Thus, set by the adaptation of heat exchanger, the air-breathing mistake of compressor can be better controled in single chill formula
Temperature, and then be conducive to lifting exchange capability of heat and operational reliability.
Alternatively, the compressor 11, can be adapted to and be arranged at the outer side of machine 10；And/or, the radiant panel 21, Ke Yishi
With being arranged at the interior side of machine 20.
For example：It is arranged on the compressor 11 of the side of outer machine 10 of the air-conditioning.
For example：It is arranged on the radiant panel 21 of the side of interior machine 20 of the air-conditioning.
Thus, by the compressor and radiant panel of split type setting, compressor can be better controled in split air conditioner
Suction superheat, and then be conducive to lifting exchange capability of heat and operational reliability.
In an optional embodiment, it can also include：Four-way reversing valve 12.
Alternatively, the first valve port of the four-way reversing valve 12, adaptation is connected to the exhaust end of the compressor 11；It is described
Second valve port of four-way reversing valve 12, adaptation is connected to the heat exchanger；3rd valve port of the four-way reversing valve 12, adaptation connects
It is connected to the 4th port of the heat exchanger 13；4th valve port of the four-way reversing valve 12, adaptation is connected to the radiant panel
21。
For example：Heat exchanger 13, can include：Four ports；For example：First port a, second port b, the 3rd port c
With the 4th port d.
For example：The radiant panel 21 and the heat exchanger, are connected by first and second port adaptation of the heat exchanger 13
Connect.The suction end of the compressor 11 and the 3rd valve port (i.e. suction end Q2) of the four-way reversing valve 12, are handed over by the heat
Third and fourth port adaptation connection of parallel operation 13.Pipeline between first and second port of the heat exchanger 13, is handed over the heat
Pipeline between third and fourth port of parallel operation 13 is exchanged heat.
Further, the first valve port (i.e. exhaust end Q1) of the four-way reversing valve 12, adaptation is connected to the compressor
11 exhaust end.Second valve port of the four-way reversing valve 12, adaptation is connected to the heat exchanger.The four-way reversing valve 12
4th valve port, adaptation is connected to the radiant panel 21.
That is, the first connection end and the first connection end of the heat exchanger of the radiant panel 21, pass through the heat
The first port a and the heat exchanger 13 of exchanger 13 second port b adaptation connections.The second of the radiant panel 21
Connection end, adaptation is connected to the 4th valve port of the four-way reversing valve (12).Second connection end of the heat exchanger, adaptation connection
To the second valve port of four-way reversing valve (12).
For example：Heat exchanger 13, can be used for the suction side of compressor 11 (for example：The suction end Q1 of compressor) refrigerant is (i.e.
Refrigerant for heat absorption) and system is (for example：The control system of radiation air-conditioner) condensed refrigerant (refrigerant i.e. for heat release)
Heat exchange, controls the suction superheat of compressor 11.
For example：The suction end Q1 and four-way valve of compressor 11 are (for example：Four-way reversing valve 12) suction end Q1, can also lead to
Over-heat-exchanger 13 is connected, and the interface of connection is respectively the 3rd port c and the 4th port d.
Thus, set by the adaptation of heat exchanger, the suction superheat of compressor can be better controled over, and then favorably
In lifting exchange capability of heat and operational reliability；The water system in existing air-conditioning system can be saved, realize system compact,
Judicial convenience is installed；Moreover, compared with existing air-conditioning system, excessive cost input will not be increased.
Alternatively, the heat exchanger, can include：Pipe wing heat exchanger 18, micro-channel heat exchanger etc..
Thus, by pipe wing heat exchanger, heat exchange efficiency is higher, and property easy to use is more preferable.
In an optional embodiment, it can also include：In the restricting element 17 of first throttle element 16 and second extremely
It is one of few.
Alternatively, when the air-conditioning can include the first throttle element (16) and second restricting element (17).
For example：The restricting element 17 of first throttle element 16 and second, can be connected, the interface of connection by heat exchanger 13
Respectively first port a and second port b.
In an optional example, the first throttle element 16, adaptation is arranged on the first end of the heat exchanger 13
In pipeline between mouth and the radiant panel 21.When the air-conditioning heating is run, the flow of the first throttle element 16 is opened
Spend for its upper threshold, reference can be made to the example shown in Fig. 3.
For example：When heating (i.e. in a heating mode), the second restricting element 17 plays throttling action；First throttle member
The aperture of part 16 reaches maximum, and now (i.e. in a heating mode) first throttle element 16 does not play throttling action.
For example：In heating operation, the flow of first throttle element 16 is opened to maximum (not playing throttling action now).
In an optional specific example, in heating operation, the flow of first throttle element 16 is opened to maximum (now
Do not play throttling action), refrigerant by compressor 11 discharge after through four-way valve (for example：Four-way reversing valve 12) get in radiation
Plate (i.e. radiant panel 21) condenses heat release, to indoor heating；Entered after condensation by the first port a (i.e. a interfaces) of heat exchanger 13
Enter heat exchanger 13 to be subcooled with the heat exchange of the air-breathing of compressor 11, the second port b (i.e. b interfaces) for passing through heat exchanger 13 after supercooling flows
Go out to enter the reducing pressure by regulating flow of the second restricting element 17, the evaporation endothermic of pipe wing heat exchanger 18 is entered after decompression, then passes through four-way valve (example
Such as：Four-way reversing valve 12) flow into heat exchanger 13 (for example：It is the entrance of d interfaces by the 4th port d) flowed out with radiant panel 21
Refrigerant heat exchange overheat, the refrigerant after finally overheating is inhaled from the 3rd port c (the i.e. c interfaces) outflows of heat exchanger 13 by compressor 11
Enter compression chamber, complete a complete cycle.
In an optional example, second restricting element 17, adaptation is arranged on the second end of the heat exchanger 13
In pipeline between mouth and the heat exchanger.When the air conditioner refrigerating is run, the flow aperture of second restricting element 17
For its upper threshold, reference can be made to the example shown in Fig. 2.
For example：When refrigeration (i.e. in cooling mode), first throttle element 16 plays throttling action；Second throttling member
The aperture of part 17 reaches maximum, and now (i.e. in cooling mode) the second restricting element 17 does not play throttling action.
For example：In refrigerating operaton, the flow of the second restricting element 17 is opened to maximum (not playing throttling action now).
In an optional specific example, in refrigerating operaton, the flow of the second restricting element 17 is opened to maximum (now
Do not play throttling action), refrigerant by compressor 11 discharge after through four-way valve (for example：Four-way reversing valve 12) enter the heat exchange of pipe wing
Device 18 condenses heat release, enters heat exchanger 13 and compressor 11 by the second port b (i.e. b interfaces) of heat exchanger 13 after condensation
Carry out air-breathing heat exchange supercooling；Flowed out after supercooling by the first port a (i.e. a interfaces) of heat exchanger 13, into first throttle member
The reducing pressure by regulating flow of part 16, gets in radiant panel (i.e. radiant panel 21) evaporation endothermic, to room temperature lowering, then passes through four-way after decompression
Valve is (for example：Four-way reversing valve 12) flow into heat exchanger 13 (for example：Can be the entrance of d interfaces by the 4th port d) and pipe wing
The refrigerant heat exchange overheat that heat exchanger 18 flows out, the refrigerant after finally overheating flows from the 3rd port c (i.e. c interfaces) of heat exchanger 13
Go out, by the inspiration compression chamber of compressor 11, complete a complete cycle.
Alternatively, when the air-conditioning can include the first throttle element 16 or second restricting element 17, the sky
Tune can also include：Multiple-way valve.
In an optional example, the multiple-way valve and the first throttle element 16 or second restricting element 17 are suitable
With setting, in the different operational modes of the air-conditioning, adaptation to adjust the set-up mode of any restricting element.
For example：Set multiple-way valve to change the order of connection of restricting element, using only a restricting element, can save
The quantity of restricting element.
Thus, by controlling the opening sequence of the restricting element 17 of first throttle element 16 and second, it can be ensured that flow through heat
The refrigerant of exchanger 13 is the refrigerant before throttling, and then is conducive to improving exchange capability of heat, lifts reliability.
Alternatively, at least one of the first throttle element 16, described second restricting element 17, can include：Electricity
Sub- expansion valve, for adjusting cold medium flux.
For example：The first throttle element 16, second restricting element 17, can specifically be adapted to and select electric expansion valve
Deng.
Thus, by the restricting element of diversified forms, flexibility and convenience that restricting element is used can be lifted, it is general
Property is strong.
In an optional embodiment, it can also include：Blower fan 19.
Alternatively, the blower fan 19, setting is adapted to the heat exchanger.
Thus, by being adapted to the blower fan set, exchange capability of heat on the one hand can be lifted, on the other hand can more easily be controlled
The suction superheat of compressor processed, good reliability, heat exchange efficiency is high.
In an optional embodiment, it can also include：First temperature sensor 14 and second temperature sensor 15.
For example：The air-conditioning is (for example：The control system of radiation air-conditioner), it can include：Compressor 11, four-way reversing valve 12,
Pipe wing heat exchanger 18 (outdoor heat exchanger of i.e. outer machine part), blower fan 19 (outdoor fan of i.e. outer machine part), first throttle member
Part 16, the second restricting element 17, radiant panel 21 (the indoor radiant panel of machine part in i.e.), heat exchanger 13, the first TEMP
Device 14 and second temperature sensor 15.
For example：Alternatively, the second restricting element 17, heat exchanger 13 and second temperature sensor 15 can be newly-increased devices
Part.Compressor 11, four-way reversing valve 12, pipe wing heat exchanger 18 (outer machine), can be identical with conventional refrigerant system.
For example：At the 3rd port c of heat exchanger 13 and the 4th port d, adaptation is provided with the first temperature sensor respectively
14 and second temperature sensor 15.That is, at the 3rd port c of heat exchanger 13, adaptation is provided with the first TEMP
Device 14；At the 4th port d of heat exchanger 13, adaptation is provided with second temperature sensor 15.
In an optional example, first temperature sensor 14 can be used for the air-breathing for obtaining the compressor 11
First suction temperature at end.For example：First temperature sensor 14, adaptation is arranged at the 3rd port of the heat exchanger 13
Place.
In an optional example, the second temperature sensor 15 can be used for obtaining the four-way reversing valve 12
Second suction temperature of the 3rd valve port.For example：The second temperature sensor 15, adaptation is arranged at the of the heat exchanger 13
Four ports.
Thus, the temperature sensor of third and fourth port of heat exchanger is arranged on by adaptation, can be more convenient, more
The suction temperature of compressor and the suction temperature of four-way valve are accurately obtained, and reliability is high.
In an optional embodiment, it can also include：Controller.For example：It can be controlled by the controller of peripheral hardware,
It can also be controlled by the original controller of frequency-changeable compressor.
For example：Controller, can include：At least one of MCU, single-chip microcomputer, PLC, DSP Processor.
Alternatively, when the air-conditioning also includes the first temperature sensor 14, second temperature sensor 15, the control
Device, is adapted to setting with the compressor 11, first temperature sensor 14 and second temperature sensor 15 respectively, can be used for
Determine whether first suction temperature is less than or equal to second suction temperature；And, when first suction temperature is small
When second suction temperature, the rotating speed of the blower fan 19 of the adaptation regulation air-conditioning.
For example：The controller, is sensed with the compressor 11, first temperature sensor 14, second temperature respectively
Device 15 and the adaptation of the blower fan 19 are set, and are determined for whether first suction temperature is less than or equal to the described second suction
Temperature degree.
For example：The controller, can be also used for when first suction temperature is less than or equal to the second air-breathing temperature
Degree and when the air-conditioning can include blower fan 19, the rotating speed of the adaptation regulation blower fan 19, until first suction temperature is big
In second suction temperature.
For example：By contrasting the data that the first temperature sensor 14 and second temperature sensor 15 are gathered, it can be determined that
The suction superheat size of compressor 11.That is, by detecting the first temperature sensor 14 and second temperature sensor 15
Numerical values recited, it can be determined that whether compressor air suction has the degree of superheat, it is ensured that compressor operating is reliable, prevents liquid hammer.
For example：The numerical value of first temperature sensor 14 is more than the numerical value of second temperature sensor 15, it is meant that compressor 11
Suction end Q1 refrigerant is overheat gaseous coolant.Now compressor 11 has certain suction superheat.Suction superheat increases
Process there is flex point, first slow increase when both less than flex point, speedup is accelerated during more than flex point.System (the example at flex point
Such as：The control system of radiation air-conditioner) performance it is optimal, that is to say, that efficiency of the compressor 11 at suction superheat flex point is most
It is good.
For example：By the number for adjusting the outer rotating speed of blower fan 19, the first temperature sensor 14 of detection and second temperature sensor 15
Value changes, the optimal efficiency point (i.e. suction superheat flex point) of searching system, the rotating speed of outer blower fan 19 when efficiency is optimal is mesh
The outer rotation speed of fan of mark, and run with the stabilization of speed.That is, now compressor 11 has certain suction superheat, energy
The rotating speed of exogenous wind 19 when imitating optimal (at suction superheat flex point) is the outer rotation speed of fan of target, and is transported with the stabilization of speed
OK.
Alternatively, when the air-conditioning can also include at least one of restricting element 17 of first throttle element 16 and second
When, the controller is additionally operable to the aperture for adjusting the first throttle element 16 or second restricting element 17, to pass through control
The refrigerant temperature of first and second port of the heat exchanger 13 is made, the suction superheat to the compressor 11 is controlled.
For example：Controller, can adjust the aperture of two restricting elements, so that the temperature of heat exchange a, b ends refrigerant is controlled,
Reach the purpose of the control compressor air suction degree of superheat.
Thus, by controlling the rotating speed of blower fan and/or the aperture of restricting element, compressor air suction is maintained to keep certain mistake
Temperature, it is possible to achieve the Effec-tive Function of system, that is, lift exchange capability of heat and operational reliability.
Through substantial amounts of verification experimental verification, using the technical scheme of the present embodiment, hot and cold to indoor conveying directly using refrigerant
During amount, by adjusting the heat exchange amount of two strands of refrigerants in the rotating speed of blower fan, control heat exchanger, solve air-conditioning system and directly adopt
The problem of compressor air suction degree of superheat can not be ensured during amount hot and cold to interior conveying with refrigerant (i.e. radiation mode exchange capability of heat
Difference), it is ensured that the compressor air suction degree of superheat, improves the reliability of system.
Embodiments in accordance with the present invention, additionally provide a kind of control method of air-conditioning corresponding to air-conditioning.As shown in Figure 4 originally
The schematic flow sheet of one embodiment of the method for invention.The control method of the air-conditioning can include：
At step S110, based on described air-conditioning (for example：Air-conditioning shown in Fig. 1 to Fig. 3), obtain the compressor 11
Suction end the first suction temperature, and obtain the 4th port (or the of the four-way reversing valve 12 of the heat exchanger 13
Three valve ports) the second suction temperature.
For example：The air-conditioning is (for example：The control system of radiation air-conditioner), it can include：Compressor 11, four-way reversing valve 12,
Pipe wing heat exchanger 18 (outdoor heat exchanger of i.e. outer machine part), blower fan 19 (outdoor fan of i.e. outer machine part), first throttle member
Part 16, the second restricting element 17, radiant panel 21 (the indoor radiant panel of machine part in i.e.), heat exchanger 13, the first TEMP
Device 14 and second temperature sensor 15.
For example：Alternatively, the second restricting element 17, heat exchanger 13 and second temperature sensor 15 can be newly-increased devices
Part.Compressor 11, four-way reversing valve 12, pipe wing heat exchanger 18 (outer machine), can be identical with conventional refrigerant system.
For example：At the 3rd port c of heat exchanger 13 and the 4th port d, adaptation is provided with the first temperature sensor respectively
14 and second temperature sensor 15.That is, at the 3rd port c of heat exchanger 13, adaptation is provided with the first TEMP
Device 14；At the 4th port d of heat exchanger 13, adaptation is provided with second temperature sensor 15.
Thus, the temperature sensor of third and fourth port of heat exchanger is arranged on by adaptation, can be more convenient, more
The suction temperature of compressor and the suction temperature of four-way valve are accurately obtained, and reliability is high.
At step S120, determine whether first suction temperature is less than or equal to second suction temperature.
For example：By contrasting the data that the first temperature sensor 14 and second temperature sensor 15 are gathered, it can be determined that
The suction superheat size of compressor 11.That is, by detecting the first temperature sensor 14 and second temperature sensor 15
Numerical values recited, it can be determined that whether compressor air suction has the degree of superheat, it is ensured that compressor operating is reliable, prevents liquid hammer.
At step S130, when first suction temperature is less than or equal to second suction temperature and the air-conditioning
When can include blower fan 19, the rotating speed of the adaptation regulation blower fan 19 is inhaled until first suction temperature is more than described second
Temperature degree.
For example：The numerical value of first temperature sensor 14 is more than the numerical value of second temperature sensor 15, it is meant that compressor 11
Suction end Q1 refrigerant is overheat gaseous coolant.Now compressor 11 has certain suction superheat.Suction superheat increases
Process there is flex point, first slow increase when both less than flex point, speedup is accelerated during more than flex point.System (the example at flex point
Such as：The control system of radiation air-conditioner) performance it is optimal, that is to say, that efficiency of the compressor 11 at suction superheat flex point is most
It is good.
For example：The numerical value of first temperature sensor 14 is more than the numerical value of second temperature sensor 15, it is meant that compressor 11
Suction end Q1 refrigerant is overheat gaseous coolant.Now compressor 11 has certain suction superheat.Suction superheat increases
Process there is flex point, first slow increase when both less than flex point, speedup is accelerated during more than flex point.System (the example at flex point
Such as：The control system of radiation air-conditioner) performance it is optimal, that is to say, that efficiency of the compressor 11 at suction superheat flex point is most
It is good.
Thus, by controlling the rotating speed of blower fan, compressor air suction is maintained to keep certain degree of superheat, it is possible to achieve system
Effec-tive Function, that is, lift exchange capability of heat and operational reliability.
In an optional example, the rotating speed of the adaptation regulation blower fan 19, can include in step S130：When the sky
When modulating cold operation and first suction temperature and being less than or equal to second suction temperature, the adaptation reduction blower fan 19
Rotating speed, until first suction temperature be more than second suction temperature.
For example：By the number for adjusting the outer rotating speed of blower fan 19, the first temperature sensor 14 of detection and second temperature sensor 15
Value changes, the optimal efficiency point (i.e. suction superheat flex point) of searching system, the rotating speed of outer blower fan 19 when efficiency is optimal is mesh
The outer rotation speed of fan of mark, and run with the stabilization of speed.That is, now compressor 11 has certain suction superheat, energy
The rotating speed of exogenous wind 19 when imitating optimal (at suction superheat flex point) is the outer rotation speed of fan of target, and is transported with the stabilization of speed
OK.
Alternatively, example shown in Figure 5, the rotating speed of the adaptation reduction blower fan 19, can include：
Step S210, based on default reduction speed, is reduced to the first current rotating speed of the blower fan 19.
Step S220, during being reduced to the described first current rotating speed, determines that first suction temperature is
It is no to be changed into more than second suction temperature.And,
Step S230, when first suction temperature is changed into more than second suction temperature, determines the compression
Machine 11 now operates on the suction superheat flex point of itself；Obtain the compressor 11 and run on the suction superheat flex point of itself
Second current rotating speed of Shi Suoshu blower fans 19, and the described second current rotating speed is defined as to the rotating speed of target of the blower fan 19.
For example：When first suction temperature is more than second suction temperature, obtain the blower fan 19 second is worked as
Preceding rotating speed, and the described second current rotating speed is defined as to the rotating speed of target of the blower fan 19.
For example：First suction superheat flex point of the compressor 11 in refrigerating operaton is determined, and makes the blower fan 19
Run on target refrigeration rotating speed corresponding with the first suction superheat flex point.
For example：By the number for adjusting the outer rotating speed of blower fan 19, the first temperature sensor 14 of detection and second temperature sensor 15
Value changes, the optimal efficiency point (i.e. suction superheat flex point) of searching system, the rotating speed of outer blower fan 19 when efficiency is optimal is mesh
The outer rotation speed of fan of mark, and run with the stabilization of speed.That is, now compressor 11 has certain suction superheat, energy
The rotating speed of exogenous wind 19 when imitating optimal (at suction superheat flex point) is the outer rotation speed of fan of target, and is transported with the stabilization of speed
OK.
In an optional example, the rotating speed of the adaptation regulation blower fan 19, can also include in step S130：When described
When air-conditioning heating is run and first suction temperature is less than or equal to second suction temperature, the adaptation rise blower fan
19 rotating speed, until first suction temperature is more than second suction temperature.
Alternatively, example shown in Figure 6, the rotating speed of the adaptation rise blower fan 19, can include：
Step S310, based on default increase rate, is raised to the 3rd current rotating speed of the blower fan 19.
Step S320, during elevated to the described 3rd current rotating speed progress, determines that first suction temperature is
It is no to be changed into more than second suction temperature.And,
Step S330, when first suction temperature is changed into more than second suction temperature, determines the compression
Machine 11 now operates on the suction superheat flex point of itself；Obtain the compressor 11 and run on the suction superheat flex point of itself
4th current rotating speed of Shi Suoshu blower fans 19, and the 4th current rotating speed is defined as to the rotating speed of target of the blower fan 19.
For example：When first suction temperature is more than second suction temperature, obtain the blower fan 19 the 4th works as
Preceding rotating speed, and the 4th current rotating speed is defined as to the rotating speed of target of the blower fan 19.
For example：Second suction superheat flex point of the compressor 11 in heating operation is determined, and makes the blower fan 19
Run on target corresponding with the second suction superheat flex point and heat rotating speed.
For example：Can be by adjusting the heat exchange amounts of two strands of refrigerants in the rotating speed of blower fan 19, control heat exchanger 13, so that real
The numerical value of existing first temperature sensor 14 is more than the numerical value of second temperature sensor 15, compressor air suction is ensured certain overheat
Degree.
Wherein, two strands of refrigerants in control heat exchange 13, can include：The suction side of compressor 11 (i.e. suction end Q1) place
Refrigerant, and system is (for example：The control system of radiation air-conditioner) condensed refrigerant.
Thus, by being adapted to reduction rotation speed of fan, the adaptation rise rotation speed of fan in heating mode in refrigeration mode, adjust
Good portability is saved, reliability is high.
In an optional embodiment, when the air-conditioning can include the restricting element 17 of first throttle element 16 and second
When, it can also include：When the air-conditioning heating is run, the flow aperture of the first throttle element 16 is its upper threshold；
And/or, when the air conditioner refrigerating is run, the flow aperture of second restricting element 17 is its upper threshold.
For example：In refrigerating operaton, when the numerical value of the first temperature sensor 14 is less than or equal to second temperature sensor 15
Numerical value when, show that the degree of superheat of the air-breathing of compressor 11 is not enough, there is the risk of Wet Compression, can be by reducing turning for blower fan 19
Speed, increases the heat exchange amount of two strands of refrigerants in the mass dryness fraction of the refrigerant flowed out from pipe wing heat exchanger, increase heat exchanger, so as to realize the
The numerical value of one temperature sensor 14 is more than the numerical value of second temperature sensor 15, the air-breathing of compressor 11 is ensured certain overheat
Degree.In addition, the rotating speed by controlling blower fan 19, the optimal efficiency point (suction superheat flex point) of searching system, make system with property
Can optimum state operation.
For example：In heating operation, when the numerical value of the first temperature sensor 14 is less than or equal to second temperature sensor 15
Numerical value when, show that the degree of superheat of the air-breathing of compressor 11 is not enough, there is the risk of Wet Compression, can be by raising turning for blower fan 19
The mass dryness fraction for the refrigerant that speed increase is flowed out from pipe wing heat exchanger, so as to realize that the numerical value of the first temperature sensor 14 is more than second temperature
The numerical value of sensor 15, makes compressor air suction ensure certain degree of superheat.In addition, the rotating speed by controlling blower fan 19, finds system
The optimal efficiency point (suction superheat flex point) of system, makes system be run with best performance state.
Thus, by controlling the opening sequence of the restricting element 17 of first throttle element 16 and second, it can be ensured that flow through heat
The refrigerant of exchanger 13 is the refrigerant before throttling, and then is conducive to improving exchange capability of heat, lifts reliability.
In an optional embodiment, it can also include：When the air-conditioning also includes first throttle element 16 and second
During at least one of restricting element 17, the aperture of the first throttle element 16 or second restricting element 17 is adjusted, with
By the refrigerant temperature for first and second port for controlling the heat exchanger 13, the suction superheat to the compressor 11 is carried out
Control.
Thus, the aperture of restricting element is adjusted by coordinating, the suction superheat of compressor can be better controled over, is controlled
Reliability and accuracy can be lifted.
In an optional embodiment, the air-conditioning is (for example：Air-conditioning system), it can include：Compressor 11, four-way
Reversal valve 12, pipe wing heat exchanger 18 (outdoor heat exchanger of i.e. outer machine part), blower fan 19 (outdoor fan of i.e. outer machine part),
One restricting element 16, the second restricting element 17, radiant panel 21 (the indoor radiant panel of machine part in i.e.), heat exchanger 13, first
Temperature sensor 14 and second temperature sensor 15.
Alternatively, the second restricting element 17, heat exchanger 13 and second temperature sensor 15 can be newly-increased devices.Pressure
Contracting machine 11, four-way reversing valve 12, pipe wing heat exchanger 18 (outer machine), can be identical with conventional refrigerant system.
In an optional example, heat exchanger 13 can include：Four ports；For example：First port a, second port
B, the 3rd port c and the 4th port d.
Alternatively, heat exchanger 13, can be used for the suction side of compressor 11 (for example：The suction end Q1 of compressor) refrigerant
(refrigerant i.e. for heat absorption) and system are (for example：The control system of radiation air-conditioner) condensed refrigerant is (i.e. for the cold of heat release
Matchmaker) heat exchange, control the suction superheat of compressor 11.
In an optional example, the restricting element 17 of first throttle element 16 and second can be connected by heat exchanger 13
Logical, the interface of connection is respectively first port a and second port b.
Alternatively, when refrigeration (i.e. in cooling mode), first throttle element 16 plays throttling action；Second throttling
The aperture of element 17 reaches maximum, and now (i.e. in cooling mode) the second restricting element 17 does not play throttling action.
For example：In refrigerating operaton, the flow of the second restricting element 17 is opened to maximum (not playing throttling action now).
Specifically, in refrigerating operaton, the flow of the second restricting element 17 is opened to maximum and (does not play throttling now to make
With), refrigerant by compressor 11 discharge after through four-way valve (for example：Four-way reversing valve 12) put into the condensation of pipe wing heat exchanger 18
Heat, enters heat exchanger 13 by the second port b (i.e. b interfaces) of heat exchanger 13 after condensation and is changed with the progress of compressor 11 air-breathing
Heat supercooling；Flowed out after supercooling by the first port a (i.e. a interfaces) of heat exchanger 13, throttle and drop into first throttle element 16
Pressure, gets in radiant panel (i.e. radiant panel 21) evaporation endothermic after decompression, to room temperature lowering, then by four-way valve (for example：Four
Logical reversal valve 12) flow into heat exchanger 13 (for example：Can be the entrance of d interfaces by the 4th port d) flowed with pipe wing heat exchanger 18
The refrigerant heat exchange overheat gone out, the refrigerant after finally overheating flows out from the 3rd port c (i.e. c interfaces) of heat exchanger 13, compressed
The inspiration compression chamber of machine 11, completes a complete cycle.
Alternatively, when heating (i.e. in a heating mode), the second restricting element 17 plays throttling action；First throttle
The aperture of element 16 reaches maximum, and now (i.e. in a heating mode) first throttle element 16 does not play throttling action.
For example：In heating operation, the flow of first throttle element 16 is opened to maximum (not playing throttling action now).
Specifically, in heating operation, the flow of first throttle element 16 is opened to maximum and (does not play throttling now to make
With), refrigerant by compressor 11 discharge after through four-way valve (for example：Four-way reversing valve 12) get in radiant panel (i.e. radiant panel
21) heat release is condensed, to indoor heating；Heat exchanger 13 is entered by the first port a (i.e. a interfaces) of heat exchanger 13 after condensation
Exchange heat and be subcooled with the air-breathing of compressor 11, second section is exited into by the second port b (i.e. b interfaces) of heat exchanger 13 after supercooling
The reducing pressure by regulating flow of fluid element 17, enters the evaporation endothermic of pipe wing heat exchanger 18, then by four-way valve (for example after decompression：Four-way commutates
Valve 12) flow into heat exchanger 13 (for example：Be the entrance of d interfaces by the 4th port d) with radiant panel 21 flow out refrigerant exchanged heat
Heat, the refrigerant after finally overheating is flowed out by the inspiration compression chamber of compressor 11 from the 3rd port c (i.e. c interfaces) of heat exchanger 13,
Complete a complete cycle.
It can be seen that, by the opening sequence for controlling the restricting element 17 of first throttle element 16 and second, it can be ensured that flow through heat
The refrigerant of exchanger 13 is the refrigerant before throttling.
For example：Refrigerant temperature before throttling is high, is more easy to raise compressor air suction temperature by heat exchanger, it is ensured that compression
Machine operational reliability, and by adjusting suction superheat system can be made to maintain optimal efficiency.
In an optional example, the suction end Q1 and four-way valve of compressor 11 are (for example：Four-way reversing valve 12) air-breathing
Q1 is held, can also be connected by heat exchanger 13, the interface of connection is respectively the 3rd port c and the 4th port d.
In an optional example, at the 3rd port c of heat exchanger 13 and the 4th port d, adaptation is provided with the respectively
One temperature sensor 14 and second temperature sensor 15.That is, at the 3rd port c of heat exchanger 13, adaptation is provided with
First temperature sensor 14；At the 4th port d of heat exchanger 13, adaptation is provided with second temperature sensor 15.
Further, can be with by contrasting the data that the first temperature sensor 14 and second temperature sensor 15 are gathered
Judge the suction superheat size of compressor 11.That is, by detecting that the first temperature sensor 14 and second temperature are sensed
The numerical values recited of device 15, it can be determined that whether compressor air suction has the degree of superheat, it is ensured that compressor operating is reliable, prevents liquid hammer.
Wherein, the numerical value of the first temperature sensor 14 is more than the numerical value of second temperature sensor 15, it is meant that compressor 11
Suction end Q1 refrigerant is overheat gaseous coolant.Now compressor 11 has certain suction superheat.Suction superheat increases
Process there is flex point, first slow increase when both less than flex point, speedup is accelerated during more than flex point.System (the example at flex point
Such as：The control system of radiation air-conditioner) performance it is optimal, that is to say, that efficiency of the compressor 11 at suction superheat flex point is most
It is good.
Therefore, by adjusting the outer rotating speed of blower fan 19, the first temperature sensor 14 and the number of second temperature sensor 15 are detected
Value changes, the optimal efficiency point (i.e. suction superheat flex point) of searching system, the rotating speed of outer blower fan 19 when efficiency is optimal is mesh
The outer rotation speed of fan of mark, and run with the stabilization of speed.That is, now compressor 11 has certain suction superheat, energy
The rotating speed of exogenous wind 19 when imitating optimal (at suction superheat flex point) is the outer rotation speed of fan of target, and is transported with the stabilization of speed
OK.
It is alternatively possible to the rotating speed by adjusting blower fan 19, controls the heat exchange amount of two strands of refrigerants in heat exchanger 13, so that
Realize that the numerical value of the first temperature sensor 14 is more than the numerical value of second temperature sensor 15, compressor air suction is ensured certain mistake
Temperature.
Wherein, two strands of refrigerants in control heat exchange 13, can include：The suction side of compressor 11 (i.e. suction end Q1) place
Refrigerant, and system is (for example：The control system of radiation air-conditioner) condensed refrigerant.
In an optional specific example, in refrigerating operaton, when the numerical value of the first temperature sensor 14 is less than or equal to
During the numerical value of second temperature sensor 15, show that the degree of superheat of the air-breathing of compressor 11 is not enough, there is the risk of Wet Compression, Ke Yitong
The rotating speed of reduction blower fan 19 is crossed, increases two strands of refrigerants in the mass dryness fraction of the refrigerant flowed out from pipe wing heat exchanger, increase heat exchanger
Heat exchange amount, so as to realize that the numerical value of the first temperature sensor 14 is more than the numerical value of second temperature sensor 15, inhales compressor 11
Gas ensures certain degree of superheat.In addition, the rotating speed by controlling blower fan 19, the optimal efficiency point (suction superheat of searching system
Flex point), system is run with best performance state.
In an optional specific example, in heating operation, when the numerical value of the first temperature sensor 14 is less than or equal to
During the numerical value of second temperature sensor 15, show that the degree of superheat of the air-breathing of compressor 11 is not enough, there is the risk of Wet Compression, Ke Yitong
The rotating speed increase of rise blower fan 19 is crossed from the mass dryness fraction of the refrigerant of pipe wing heat exchanger outflow, so as to realize the first temperature sensor 14
Numerical value is more than the numerical value of second temperature sensor 15, compressor air suction is ensured certain degree of superheat.In addition, by controlling blower fan
19 rotating speed, the optimal efficiency point (suction superheat flex point) of searching system makes system be run with best performance state.
It can be seen that, by controlling the rotating speed of blower fan 19, maintain the air-breathing of compressor 11 to keep certain degree of superheat, it is possible to achieve to be
The Effec-tive Function of system.
So, compression can not be ensured when can solve air-conditioning system directly using hot and cold to the indoor conveying amount of refrigerant
The problem of machine suction superheat (radiation mode exchange capability of heat is poor), ensure in directly amount hot and cold to indoor conveying using refrigerant
The compressor air suction degree of superheat, improves the reliability of system；The water system in existing air-conditioning system can be saved, system is realized
Miniaturization, installation judicial convenience；Moreover, compared with existing air-conditioning system, excessive cost input will not be increased, and technically
Easily realize.
The processing and function realized by the method for the present embodiment essentially correspond to earlier figures 1 to the air-conditioning shown in Fig. 3
Embodiment, principle and example, therefore not detailed part in the description of the present embodiment may refer to mutually speaking on somebody's behalf in previous embodiment
It is bright, it will not be described here.
Through substantial amounts of verification experimental verification, using technical scheme, by controlling first throttle element and second to throttle
The opening sequence of element, it can be ensured that the refrigerant for flowing through heat exchanger is the refrigerant before throttling, further lifts exchange capability of heat；
By directly using refrigerant to the hot and cold amount of indoor conveying, the water system in existing air-conditioning system is saved, realizes that system is small-sized
Change, judicial convenience is installed；And excessive cost input will not be increased, property easy to use is good.
To sum up, it will be readily appreciated by those skilled in the art that on the premise of not conflicting, above-mentioned each advantageous manner can be certainly
Combined, be superimposed by ground.
Embodiments of the invention are the foregoing is only, are not intended to limit the invention, for those skilled in the art
For member, the present invention can have various modifications and variations.Any modification within the spirit and principles of the invention, being made,
Equivalent substitution, improvement etc., should be included within scope of the presently claimed invention.
Claims (12)
1. a kind of air-conditioning, it is characterised in that including：Compressor (11), heat exchanger (13), heat exchanger and radiant panel (21)；Its
In,
The radiant panel (21) and the heat exchanger, are connected by first and second port adaptation of the heat exchanger (13)；
The suction end of the compressor (11), adaptation is connected to the 3rd port of the heat exchanger (13)；The compressor
(11) exhaust end, adaptation is connected to one in the heat exchanger and the radiant panel (21)；The heat exchanger (13)
4th port, adaptation is connected to another in the heat exchanger and the radiant panel (21)；
Pipeline between first and second port of the heat exchanger (13), with third and fourth port of the heat exchanger (13) it
Between pipeline exchanged heat.
2. air-conditioning according to claim 1, it is characterised in that also include：Four-way reversing valve (12)；
First valve port of the four-way reversing valve (12), adaptation is connected to the exhaust end of the compressor (11)；The four-way is changed
To the second valve port of valve (12), adaptation is connected to the heat exchanger；3rd valve port of the four-way reversing valve (12), adaptation connection
To the 4th port of the heat exchanger (13)；4th valve port of the four-way reversing valve (12), adaptation is connected to the radiation
Plate (21).
3. air-conditioning according to claim 1 or 2, it is characterised in that also include：First throttle element (16) and the second throttling
At least one of element (17)；Wherein,
When the air-conditioning includes the first throttle element (16) and second restricting element (17), the first throttle element
(16), adaptation is arranged in the pipeline between the first port of the heat exchanger (13) and the radiant panel (21)；When described
When air-conditioning heating is run, the flow aperture of the first throttle element (16) is its upper threshold；
Second restricting element (17), adaptation is arranged between the second port of the heat exchanger (13) and the heat exchanger
Pipeline in；When the air conditioner refrigerating is run, the flow aperture of second restricting element (17) is its upper threshold；
Or,
When the air-conditioning includes the first throttle element (16) or second restricting element (17), the air-conditioning also includes：It is many
Port valve；
The multiple-way valve is adapted to setting with the first throttle element (16) or second restricting element (17), for described
In the different operational modes of air-conditioning, the order of connection of any restricting element of adaptation regulation.
4. the air-conditioning according to one of claim 1-3, it is characterised in that also include：First temperature sensor (14) and
Two temperature sensors (15)；Wherein,
First temperature sensor (14), the first suction temperature of the suction end for obtaining the compressor (11)；
The second temperature sensor (15), the second air-breathing temperature of the 3rd valve port for obtaining the four-way reversing valve (12)
Degree.
5. the air-conditioning according to one of claim 1-4, it is characterised in that also include：Controller；
When the air-conditioning also include the first temperature sensor (14), second temperature sensor (15) when, the controller, respectively with
The compressor (11), first temperature sensor (14) and second temperature sensor (15) adaptation are set, for determining
State whether the first suction temperature is less than or equal to second suction temperature；And, when first suction temperature is less than or waits
When second suction temperature, the rotating speed of the blower fan (19) of the adaptation regulation air-conditioning.
6. the air-conditioning according to one of claim 1-4, it is characterised in that also include：Controller；
When the air-conditioning also includes at least one of first throttle element (16) and the second restricting element (17), the control
Device, is additionally operable to adjust the aperture of the first throttle element (16) or second restricting element (17), with described by control
The refrigerant temperature of first and second port of heat exchanger (13), the suction superheat to the compressor (11) is controlled.
7. the air-conditioning according to one of claim 1-6, it is characterised in that wherein,
The compressor (11), adaptation is arranged at outer machine (10) side；And/or,
The radiant panel (21), adaptation is arranged at interior machine (20) side.
8. a kind of control method of air-conditioning, it is characterised in that including：
Based on the air-conditioning as described in claim 1-7 is any, the first suction temperature of the suction end of the compressor (11) is obtained,
And obtain the second suction temperature of the 4th port of the heat exchanger (13)；
Determine whether first suction temperature is less than or equal to second suction temperature；And,
When first suction temperature is less than or equal to second suction temperature and the air-conditioning includes blower fan (19), fit
Rotating speed with the blower fan (19) for adjusting the air-conditioning.
9. method according to claim 8, it is characterised in that also include：
When the air-conditioning also includes at least one of first throttle element (16) and the second restricting element (17), regulation is described
The aperture of first throttle element (16) or second restricting element (17), with by controlling the of the heat exchanger (13)
First, the refrigerant temperature of Two-port netwerk, the suction superheat to the compressor (11) is controlled.
10. method according to claim 8 or claim 9, it is characterised in that turn of the blower fan (19) of the adaptation regulation air-conditioning
Speed, including：
Based on default reduction speed, the first current rotating speed of the blower fan (19) is reduced；
During being reduced to the described first current rotating speed, determine whether first suction temperature is changed into more than institute
State the second suction temperature；And,
When first suction temperature is changed into more than second suction temperature, determine that the compressor (11) is now run
In the suction superheat flex point of itself；
The second current rotating speed that the compressor (11) runs on the blower fan (19) during the suction superheat flex point of itself is obtained,
And the described second current rotating speed is defined as to the rotating speed of target of the blower fan (19).
11. the method according to one of claim 8-10, it is characterised in that the blower fan (19) of the adaptation regulation air-conditioning
Rotating speed, in addition to：
Based on default increase rate, the 3rd current rotating speed of the blower fan (19) is raised；
During elevated to the described 3rd current rotating speed progress, determine whether first suction temperature is changed into more than institute
State the second suction temperature；And,
When first suction temperature is changed into more than second suction temperature, determine that the compressor (11) is now run
In the suction superheat flex point of itself；
The 4th current rotating speed that the compressor (11) runs on the blower fan (19) during the suction superheat flex point of itself is obtained,
And the 4th current rotating speed is defined as to the rotating speed of target of the blower fan (19).
12. the method according to one of claim 8-11, it is characterised in that when the air-conditioning includes first throttle element
(16) and during at least one of the second restricting element (17), in addition to：
When the air-conditioning heating is run, the flow aperture of the first throttle element (16) is its upper threshold；
When the air conditioner refrigerating is run, the flow aperture of second restricting element (17) is its upper threshold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710304329.0A CN107143917B (en) | 2017-05-03 | 2017-05-03 | Air conditioner and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710304329.0A CN107143917B (en) | 2017-05-03 | 2017-05-03 | Air conditioner and control method thereof |
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