CN104949210B - The control method of air-conditioning system, air conditioner and air-conditioning system - Google Patents
The control method of air-conditioning system, air conditioner and air-conditioning system Download PDFInfo
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- CN104949210B CN104949210B CN201510439763.0A CN201510439763A CN104949210B CN 104949210 B CN104949210 B CN 104949210B CN 201510439763 A CN201510439763 A CN 201510439763A CN 104949210 B CN104949210 B CN 104949210B
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- conditioning system
- heat exchanger
- passing valve
- compressor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention proposes a kind of air-conditioning system, a kind of air conditioner and a kind of control method of air-conditioning system, air-conditioning system therein：At least one compressor, at least one outdoor heat exchanger and at least one indoor heat exchanger；First by-passing valve is arranged between at least one compressor and at least one outdoor heat exchanger；Second by-passing valve, one end are connected to the drainage exit of at least one compressor, and the other end is connected to the muffler of air conditioner；Sensor detects the running parameter of at least one outdoor heat exchanger and/or at least one indoor heat exchanger, and running parameter is sent to controller；Controller adjusts the aperture of the first by-passing valve according to running parameter.The problems such as through the above technical solutions, circular flow of air-conditioning system can be automatically adjusted according to system loading, realizing energy saving of system operation, having dissolved under system heating mode the low air-conditioning system heating efficiency caused by outdoor environment temperature is too low and frosting, defrosting.
Description
Technical field
The present invention relates to air-conditioning technical fields, in particular to a kind of air-conditioning system, a kind of air conditioner and a kind of air-conditioning
The control method of system.
Background technology
Outdoor environment temperature is too low when either outside air humidity is higher general domestic air conditioner or the large size of commercialization
Air-conditioner, when being heated, the evaporating temperature that be easy to cause air-conditioning system declines, heating efficiency is low and frosting etc.
Problem defrosts for the system overwhelming majority using inverse endless form, and four-way valve reverse cycle defrosting will appear to oil, system pressure
Difference change and reduce system reliability the problems such as, although while outdoor environment temperature and air humidity can not artificially change and
Change outdoor environment state and also need the too big cost of flower, can not accomplish to realize non-frosting operation characteristic for air-conditioning system.
In addition, when some domestic air conditioners of transition season or the Large Central Air Conditioning System device of commercialization are in refrigeration or heating,
The energy consumption needed is smaller, however general domestic air conditioner or commercialization Large Central Air Conditioning System device energy consumption transition season simultaneously
It does not reduce, the recycle stream of air-conditioning system can not be automatically adjusted according to indoor and outdoor surroundings temperature and the payload of air conditioner
Amount, which results in the wastes of energy.
Therefore, the frostless operation for how realizing air-conditioning system, automatically adjusts the circular flow of air-conditioning system, becomes at present urgently
Problem to be solved.
Invention content
The present invention is based on the above problem, it is proposed that a kind of new technical solution realizes the frostless fortune of air-conditioning system
Row, automatically adjusts the circular flow of air-conditioning system.
For this purpose, an object of the present invention is to provide a kind of air-conditioning systems.
It is another object of the present invention to propose a kind of air conditioner, there is above-mentioned air-conditioning system.
Another object of the present invention is to propose a kind of control method of air-conditioning system, for above-mentioned air-conditioning system.
To achieve the above object, the embodiment of the first aspect of the present invention proposes a kind of air-conditioning system, is used for air conditioner,
Including：At least one compressor, at least one outdoor heat exchanger and at least one indoor heat exchanger；First by-passing valve, setting exist
Between at least one compressor and at least one outdoor heat exchanger, one end is connected at least one compressor
Exhaust outlet, the other end are connected to the refrigerant inlet of at least one outdoor heat exchanger；Second by-passing valve, one end are connected to institute
The drainage exit of at least one compressor is stated, the other end is connected to the muffler of the air conditioner；Sensor is arranged described
On at least one outdoor heat exchanger and/or at least one indoor heat exchanger, for detecting at least one outdoor heat exchange
The running parameter of device and/or at least one indoor heat exchanger, and the running parameter is sent to the air-conditioning system
Controller；The controller is connected to the sensor and first by-passing valve, for receiving the institute from the sensor
Running parameter is stated, and adjusts the aperture of first by-passing valve according to the running parameter, to adjust the system of the air-conditioning system
The flow of cryogen.
The air-conditioning system of the embodiment of the present invention is arranged between at least one compressor and at least one outdoor heat exchanger
First by-passing valve so that some refrigerant at least one compressor can directly flow to by the first by-passing valve at least one
Outdoor heat exchanger.Specifically, especially in the scene of low-temperature heating, air-conditioning system be susceptible to heating efficiency it is low and
Some refrigerant is fed directly at least one outdoor heat exchanger by frost by adjusting the aperture of the first by-passing valve
Refrigerant inlet, that is, evaporator, can compensate the caloric receptivity of air-conditioning system, and neutralizing is caused since outdoor environment temperature is too low
The problems such as evaporating temperature of air-conditioning system declines, heating efficiency is low and frosting, realizes the frostless operation of air-conditioning system, carries
The heating effect and user experience of air conditioner are risen.I.e. it is capable to automatically adjust following for air-conditioning system according to system loading
Circulation realizes energy saving of system operation, has dissolved and has caused air-conditioning system system since outdoor environment temperature is too low under system heating mode
The problems such as thermal efficiency is low and frosting, defrosting.
In addition, also there is following additional technical feature according to the air-conditioning system that the above embodiment of the present invention provides：
According to one embodiment of present invention, the running parameter includes at least one of or combinations thereof：Operating temperature,
Condensing pressure, evaporating pressure.
The air-conditioning system of embodiment through the invention, controller can according at least one outdoor heat exchanger and/or
The running parameter of at least one indoor heat exchanger is adjusted the aperture of the first by-passing valve, running parameter packet described here
Include but be not limited at least one of or combinations thereof：Operating temperature, condensing pressure, evaporating pressure, in addition, controller can also be
Condensing pressure and evaporating pressure are got, ratio/difference of condensing pressure and evaporating pressure is judged, and according to the ratio
The size of value/difference determines the size of the aperture of the first by-passing valve of adjustment.
According to one embodiment of present invention, the sensor includes at least one of or combinations thereof：Operating temperature passes
Sensor, the operating temperature for detecting at least one outdoor heat exchanger and/or at least one indoor heat exchanger；
Condensing pressure sensor, the condensing pressure for detecting the air-conditioning system；Evaporating pressure sensor, it is described for detecting
The evaporating pressure of air-conditioning system.
The air-conditioning system of embodiment through the invention can pass through operating temperature sensor, condensing pressure sensor, evaporation
Pressure sensor measures operating temperature, condensing pressure, evaporating pressure respectively, wherein at least one outdoor heat exchanger and it is described extremely
A few indoor heat exchanger may be provided with temperature sensor.Pass through above technical scheme so that adjusting the first by-passing valve
There are more reference foundations when aperture, improve the accuracy of aperture adjustment, further improve the heating effect of air conditioner
And user experience.
According to one embodiment of present invention, second by-passing valve is for controlling the described of at least one compressor
Drain the flow of the refrigerant in exit.
The air-conditioning system of embodiment through the invention can draw a branch at least one compressor, prop up
Road is provided with the second by-passing valve of control flow, and the aperture by controlling the second by-passing valve can be by the system of at least one compressor
Cryogen extension, to reduce the circular flow of refrigerant, in addition, the branch drawn can lead to the main road of refrigerant again,
It thus can only make some refrigerant delay that cycle be added, achieve the purpose that the circular flow for reducing refrigerant.High temperature heat,
In the scenes such as cryogenic refrigeration, for example, being freezed or being heated in transition season, air-conditioning system is under low-pressure ratio small load condition
Operation, be easy to cause the waste of energy consumption, at this point, extra refrigerant is released from compressor, can reduce following for refrigerant
Circulation realizes the low power run of air-conditioning system, reduces system energy consumption.
According to one embodiment of present invention, further include：Environment temperature sensor is arranged at least one compressor
On, the current environmental temperature for detecting the air-conditioning system, so that the controller is adjusted according to the current environmental temperature
The aperture of second by-passing valve.
The air-conditioning system of embodiment through the invention, can using current environmental temperature as whether by extra refrigerant from
The foundation released in compressor, for example, in cooling mode, when detecting that current environmental temperature is less than predetermined temperature threshold,
The aperture of second by-passing valve can be tuned up, extra refrigerant is released from compressor, reduce the recycle stream of refrigerant
Amount realizes the low power run of air-conditioning system, reduces system energy consumption.
According to one embodiment of present invention, the controller is additionally coupled to the environment temperature sensor and described second
By-passing valve, for receiving the current environmental temperature from the environment temperature sensor, and according to the current environment temperature
Degree determines whether to adjust the aperture of second by-passing valve, wherein the aperture of second by-passing valve is bigger, the system of extraction
Cryogen is more, and the circular flow of the refrigerant is lower.
The air-conditioning system of embodiment through the invention, can using current environmental temperature as whether by extra refrigerant from
The foundation released in compressor, for example, in cooling mode, when detecting that current environmental temperature is less than predetermined temperature threshold,
The aperture of the second by-passing valve can be tuned up by controller, extra refrigerant is released from compressor, reduces refrigeration
The circular flow of agent realizes the low power run of air-conditioning system, reduces system energy consumption.
According to one embodiment of present invention, further include：Throttling set, setting at least one outdoor heat exchanger and
Between at least one indoor heat exchanger, for throttling to the refrigerant, wherein the throttling set includes capillary
Pipe and/or expansion valve.
The air-conditioning system of embodiment through the invention, throttling set include but not limited to capillary and/or expansion valve,
In, expansion valve can be electric expansion valve, heating power expansion valve.
Second aspect of the present invention embodiment provides a kind of air conditioner, which has any reality of first aspect present invention
Apply example offer air-conditioning system, therefore the air conditioner have any of the above-described embodiment provide air-conditioning system all beneficial to imitate
Fruit.
Third aspect present invention embodiment provides a kind of control method of air-conditioning system, is appointed using first aspect present invention
The air-conditioning system that one embodiment provides, for the air conditioner that second aspect of the present invention provides, including：By in the air-conditioning system
Sensor detect the air-conditioning system at least one outdoor heat exchanger and/or at least one indoor heat exchanger work ginseng
Number；By the controller in the air-conditioning system, according to the running parameter, the first by-passing valve in the air-conditioning system is adjusted
Aperture, with adjustment be flowed directly at least one outdoor from the exhaust outlet of at least one of air-conditioning system compressor
The flow of the refrigerant of the refrigerant inlet of heat exchanger.
The control method of the air-conditioning system of embodiment through the invention, at least one compressor and at least one outdoor
The first by-passing valve is provided between heat exchanger so that some refrigerant at least one compressor can directly pass through the first bypass
Valve flow at least one outdoor heat exchanger.Specifically, especially in the scene of low-temperature heating, air-conditioning system is susceptible to system
The thermal efficiency is low and some refrigerant is fed directly at least one by frost by adjusting the aperture of the first by-passing valve
Refrigerant inlet, that is, evaporator of a outdoor heat exchanger can compensate the caloric receptivity of air-conditioning system, dissolve due to outdoor ring
The problems such as border temperature is too low to cause the evaporating temperature of air-conditioning system to decline, heating efficiency is low and frosting, realizes air-conditioning system
The frostless operation of system, improves the heating effect and user experience of air conditioner.Wherein, running parameter described here includes but not
It is limited at least one of or combinations thereof：Operating temperature, condensing pressure, evaporating pressure, in addition, controller can also got
Condensing pressure and evaporating pressure judge ratio/difference of condensing pressure and evaporating pressure, and according to the ratio/difference
Size determine adjustment the first by-passing valve aperture size.In addition, can be sensed by operating temperature sensor, condensing pressure
Device, evaporating pressure sensor measure operating temperature, condensing pressure, evaporating pressure respectively, wherein at least one outdoor heat exchanger and
At least one indoor heat exchanger may be provided with temperature sensor.Pass through above technical scheme so that adjusting by the of first
There are more reference foundations when the aperture of port valve, improve the accuracy of aperture adjustment, further improve the system of air conditioner
Thermal effect and user experience.
According to one embodiment of present invention, further include：It is detected by the environment temperature sensor in the air-conditioning system
The current environmental temperature of the air-conditioning system；By the controller, according to the current environmental temperature and the air-conditioning system
The load of system, it is determined whether adjust the aperture of the second by-passing valve in the air-conditioning system；Wherein, the second by-passing valve setting
Aperture in the drainage exit of at least one compressor, second by-passing valve is bigger, the recycle stream of the refrigerant
Amount is lower.
The control method of the air-conditioning system of embodiment through the invention can draw one at least one compressor
Branch, also branch road are provided with the second by-passing valve of control flow, and the aperture by controlling the second by-passing valve can will be at least one
The refrigerant extension of compressor, to reduce the circular flow of refrigerant, in addition, the branch drawn can lead to refrigeration again
The main road of agent thus can only make some refrigerant delay that cycle be added, and achieve the purpose that the circular flow for reducing refrigerant.
In the scenes such as high temperature heating, cryogenic refrigeration, for example, being freezed or being heated in transition season, it is small that air-conditioning system is in low-pressure ratio
It is run under load condition, be easy to cause the waste of energy consumption, at this point, extra refrigerant is released from compressor, can reduced
The circular flow of refrigerant realizes the low power run of air-conditioning system, reduces system energy consumption.For example, in cooling mode, working as inspection
When measuring current environmental temperature less than predetermined temperature threshold, the aperture of the second by-passing valve can be tuned up, by extra refrigeration
Agent is released from compressor, reduces the circular flow of refrigerant, realizes the low power run of air-conditioning system, reduces system energy consumption.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obviously, or practice through the invention is recognized.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination following accompanying drawings to embodiment
Obviously and it is readily appreciated that, wherein：
Fig. 1 shows the block diagram of air-conditioning system according to an embodiment of the invention；
Fig. 2 shows the attachment structure schematic diagrams of air-conditioning system according to an embodiment of the invention；
Fig. 3 shows the block diagram of air conditioner according to an embodiment of the invention；
Fig. 4 shows the flow chart of the control method of air-conditioning system according to an embodiment of the invention.
Wherein, the correspondence in Fig. 1 to Fig. 3 between reference numeral and component names is：
11 air-conditioning systems, 111 at least one compressors, 112 at least one outdoor heat exchangers, 113 at least one interiors are changed
Hot device, 114 first by-passing valves, 115 sensors, 116 controllers, 117 second by-passing valves, 118 throttling sets, 119 four-way valves, 1
Air conditioner.
Specific implementation mode
To better understand the objects, features and advantages of the present invention, below in conjunction with the accompanying drawings and specific real
Mode is applied the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
To be implemented different from other modes described here using other, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
Figures 1 and 2 show that the schematic diagram of air-conditioning system according to an embodiment of the invention.
As shown in Figure 1, air-conditioning system 11 according to an embodiment of the invention, is used for air conditioner, including：It is at least one
Compressor 111, at least one outdoor heat exchanger 112 and at least one indoor heat exchanger 113；First by-passing valve is arranged at least
Between one compressor 111 and at least one outdoor heat exchanger 112, one end is connected to the exhaust outlet of at least one compressor 111,
The other end is connected to the refrigerant inlet of at least one outdoor heat exchanger 112；Second by-passing valve 117, one end be connected to it is described extremely
The drainage exit of a few compressor 111, the other end are connected to the muffler of air conditioner；Sensor 115 is arranged at least one
On a outdoor heat exchanger 112 and/or at least one indoor heat exchanger 113, for detect at least one outdoor heat exchanger 112 and/
Or the running parameter of at least one indoor heat exchanger 113, and running parameter is sent to the controller 116 of air-conditioning system 11；Control
Device 116 processed, is connected to sensor 115 and the first by-passing valve, for receiving the running parameter from sensor 115, and according to work
The aperture for making the first by-passing valve of parameter adjustment, to adjust the flow of the refrigerant of air-conditioning system 11.
The air-conditioning system 11 of the embodiment of the present invention, at least one compressor 111 and at least one outdoor heat exchanger 112
Between be provided with the first by-passing valve so that some refrigerant at least one compressor 111 can directly pass through the first by-passing valve
It flow at least one outdoor heat exchanger 112.Specifically, especially in the scene of low-temperature heating, air-conditioning system 11 is easy out
Existing heating efficiency is low and frost, by adjusting the aperture of the first by-passing valve, by some refrigerant be fed directly to
Refrigerant inlet, that is, evaporator of a few outdoor heat exchanger 112, can compensate the caloric receptivity of air-conditioning system 11, neutralizing by
In outdoor environment temperature it is too low cause the evaporating temperature of air-conditioning system 11 to decline, heating efficiency is low and frosting the problems such as, it is real
The frostless operation for having showed air-conditioning system 11 improves the heating effect and user experience of air conditioner.I.e. it is capable to according to being
The circular flow for load automatic adjustment air-conditioning system of uniting realizes energy saving of system operation, has dissolved under system heating mode due to outdoor
Environment temperature is too low the problems such as causing air-conditioning system heating efficiency low and frosting, defrosting.
According to one embodiment of present invention, running parameter includes at least one of or combinations thereof：Operating temperature, condensation
Pressure, evaporating pressure.
The air-conditioning system of embodiment through the invention, controller can according at least one outdoor heat exchanger and/or
The running parameter of at least one indoor heat exchanger is adjusted the aperture of the first by-passing valve, running parameter here include but
It is not limited at least one of or combinations thereof：Operating temperature, condensing pressure, evaporating pressure, in addition, controller can also obtain
To condensing pressure and evaporating pressure, ratio/difference of condensing pressure and evaporating pressure is judged, and according to the ratio/poor
The size of value determines the size of the aperture of the first by-passing valve of adjustment.
According to one embodiment of present invention, sensor includes at least one of or combinations thereof：Operating temperature sensor,
Operating temperature for detecting at least one outdoor heat exchanger and/or at least one indoor heat exchanger；Condensing pressure sensor is used
In the condensing pressure of detection air-conditioning system；Evaporating pressure sensor, the evaporating pressure for detecting air-conditioning system.
The air-conditioning system of embodiment through the invention can pass through operating temperature sensor, condensing pressure sensor, evaporation
Pressure sensor measures operating temperature, condensing pressure, evaporating pressure respectively, wherein at least one outdoor heat exchanger and at least one
A indoor heat exchanger may be provided with temperature sensor.Pass through above technical scheme so that in the aperture for adjusting the first by-passing valve
When, has more with reference to foundations, improves the accuracy of aperture adjustment, further improves the heating effect and use of air conditioner
It experiences at family.
As shown in Fig. 2, according to one embodiment of present invention, the second by-passing valve 117 is for controlling at least one compressor
The flow of the refrigerant in 111 drainage exit.
The air-conditioning system of embodiment through the invention can draw a branch at least one compressor 111, also
Branch road is provided with the second by-passing valve 117 of control flow, and the aperture by controlling the second by-passing valve 117 can be by least one pressure
The refrigerant extension of contracting machine 111, to reduce the circular flow of refrigerant, in addition, the branch drawn can lead to system again
The main road of cryogen thus can only make some refrigerant delay that cycle be added, and achieve the purpose that the circular flow for reducing refrigerant.
In the scenes such as high temperature heating, cryogenic refrigeration, for example, being freezed or being heated in transition season, air-conditioning system is in low-pressure ratio
It is run under small load condition, be easy to cause the waste of energy consumption, at this point, extra refrigerant is released from compressor, can dropped
The circular flow of low refrigerant realizes the low power run of air-conditioning system, reduces system energy consumption.
According to one embodiment of present invention, further include：Environment temperature sensor is arranged at least one compressor 111
On, the current environmental temperature for detecting air-conditioning system, so that controller adjusts the second by-passing valve 117 according to current environmental temperature
Aperture.
The air-conditioning system of embodiment through the invention, can using current environmental temperature as whether by extra refrigerant from
The foundation released in compressor, for example, in cooling mode, when detecting that current environmental temperature is less than predetermined temperature threshold,
The aperture of second by-passing valve 117 can be tuned up, extra refrigerant is released from compressor 111, reduces refrigerant
Circular flow realizes the low power run of air-conditioning system, reduces system energy consumption.
According to one embodiment of present invention, controller is additionally coupled to environment temperature sensor and the second by-passing valve 117, uses
Determine whether that adjusting second bypasses in current environmental temperature of the reception from environment temperature sensor, and according to current environmental temperature
The aperture of valve 117, wherein the aperture of the second by-passing valve 117 is bigger, and the refrigerant of extraction is more, and the circular flow of refrigerant is got over
It is low.
The air-conditioning system of embodiment through the invention, can using current environmental temperature as whether by extra refrigerant from
The foundation released in compressor, for example, in cooling mode, when detecting that current environmental temperature is less than predetermined temperature threshold,
The aperture of the second by-passing valve 117 can be tuned up by controller, extra refrigerant is released from compressor, reduces system
The circular flow of cryogen realizes the low power run of air-conditioning system, reduces system energy consumption.
According to one embodiment of present invention, further include：Throttling set 118 is arranged at least one outdoor heat exchanger 112
Between at least one indoor heat exchanger 113, for throttling to refrigerant, wherein throttling set 118 includes capillary
And/or expansion valve.
The air-conditioning system of embodiment through the invention, throttling set 118 include but not limited to capillary and/or expansion
Valve, wherein expansion valve can be electric expansion valve or heating power expansion valve.
As shown in Fig. 2, air-conditioning system 11 is by least one compressor 111, at least one outdoor heat exchanger 112, at least one
A indoor heat exchanger 113, the first by-passing valve 114, the second by-passing valve 117, throttling set 118 and four-way valve 119 form.
Specifically the course of work is as follows：
Air-conditioning system 11 can be freezed and be heated two kinds of operational modes under the effect of four-way valve 119, air-conditioning system 11
The second by-passing valve 117 can adjust at least one compressor 111 according to outdoor environment temperature size under refrigeration or heating mode
Circular flow.Specifically under cryogenic refrigeration either high temperature heating condition or under the smaller operating mode of indoor load, by adjusting
Second by-passing valve, 117 aperture reduces the circular flow of refrigerant to release extra refrigerant from compressor, realizes air-conditioning
The low power run of system reduces system energy consumption.
First by-passing valve 114 can be pressed according to the size of the condensing pressure of air-conditioning system 11, the size of evaporating pressure, condensation
The difference or condensing pressure of power and evaporating pressure and the ratio of evaporating pressure adjust the aperture of the first by-passing valve 114, and
The steam for the overheat being discharged by least one compressor 111 enters evaporator, for evaporator heat so that reach suppression frost or
The effect of defrosting.At least one outdoor heat exchanger 112 and at least one indoor heat exchanger 113 of air-conditioning system 11 are equipped with work
Make temperature sensor, condensing pressure sensor and evaporating pressure sensor.
Wherein, throttling set 118 is generally capillary or expansion valve.
For air-conditioning system 11 when transition season is freezed or is heated, the energy consumption needed is relatively low, passes through adjusting at this time
The aperture of second by-passing valve 117 can be reduced the refrigerant at least one compressor 111 of air-conditioning system 11, Jin Ershi
Showed air-conditioning system 11 transition season can low power run, reduce the energy consumption of air-conditioning system 11.
In addition, temperature is relatively low in winter when heated for air-conditioning system 11, there is heat in air-conditioning system 11 in order to prevent
The phenomenon that inefficiency and frosting, air-conditioning system 11 can be adjusted according to the size of condensing pressure and the size of evaporating pressure
Fraction refrigerant can be fed directly to the entrance of evaporator, and then compensate air-conditioning system by the aperture of the first by-passing valve 114
System 11 caloric receptivity, avoid due to outdoor environment temperature is too low and caused by 11 evaporating temperature of air-conditioning system decline, heating effect
The problems such as rate is low and frosting, realizes the frostless operation of air-conditioning system 11.
Fig. 3 shows the block diagram of air conditioner according to an embodiment of the invention.
As shown in figure 3, air conditioner 1 according to an embodiment of the invention have the present invention Fig. 1 and Fig. 2 shows appoint
One embodiment provide air-conditioning system 11, therefore the air conditioner 1 have Fig. 1 and Fig. 2 shows any embodiment provide air-conditioning
Whole advantageous effects of system 11, details are not described herein.
Fig. 4 shows the flow chart of the control method of air-conditioning system according to an embodiment of the invention.
As shown in figure 4, the control method of air-conditioning system according to an embodiment of the invention, is shown using Fig. 1 of the present invention
The air-conditioning system 11 that any embodiment that goes out provides, for the present invention Fig. 2 shows air conditioner 1, including：
Step 402, by least one outdoor heat exchanger of the sensor detection air-conditioning system in air-conditioning system and/or extremely
The running parameter of a few indoor heat exchanger；
Step 404, by the controller in air-conditioning system, according to running parameter, the first bypass in air-conditioning system is adjusted
The aperture of valve is flowed directly at least one outdoor heat exchanger with adjustment from the exhaust outlet of at least one of air-conditioning system compressor
Refrigerant inlet refrigerant flow.
The control method of the air-conditioning system of embodiment through the invention, at least one compressor and at least one outdoor
The first by-passing valve is provided between heat exchanger so that some refrigerant at least one compressor can directly pass through the first bypass
Valve flow at least one outdoor heat exchanger.Specifically, especially in the scene of low-temperature heating, air-conditioning system is susceptible to system
The thermal efficiency is low and some refrigerant is fed directly at least one by frost by adjusting the aperture of the first by-passing valve
Refrigerant inlet, that is, evaporator of a outdoor heat exchanger can compensate the caloric receptivity of air-conditioning system, dissolve due to outdoor ring
The problems such as border temperature is too low to cause the evaporating temperature of air-conditioning system to decline, heating efficiency is low and frosting, realizes air-conditioning system
The frostless operation of system, improves the heating effect and user experience of air conditioner.Wherein, running parameter here includes but not limited to
At least one of or combinations thereof：Operating temperature, condensing pressure, evaporating pressure, in addition, controller can also get condensation
Pressure and evaporating pressure judge ratio/difference of condensing pressure and evaporating pressure, and according to the big of the ratio/difference
The size of the aperture of first by-passing valve of small determining adjustment.In addition, can by operating temperature sensor, condensing pressure sensor,
Evaporating pressure sensor measures operating temperature, condensing pressure, evaporating pressure respectively, wherein at least one outdoor heat exchanger and extremely
A few indoor heat exchanger may be provided with temperature sensor.Pass through above technical scheme so that adjusting the first by-passing valve
There are more reference foundations when aperture, improve the accuracy of aperture adjustment, further improve the heating effect of air conditioner
And user experience.
According to one embodiment of present invention, further include：Air-conditioning is detected by the environment temperature sensor in air-conditioning system
The current environmental temperature of system；By the controller, according to the load of the current environmental temperature and the air-conditioning system,
Determine whether to adjust the aperture of the second by-passing valve in the air-conditioning system；Wherein, the second by-passing valve is arranged at least one pressure
The drainage exit of contracting machine, the aperture of the second by-passing valve is bigger, and the circular flow of refrigerant is lower.
The control method of the air-conditioning system of embodiment through the invention can draw one at least one compressor
Branch, also branch road are provided with the second by-passing valve of control flow, and the aperture by controlling the second by-passing valve can will be at least one
The refrigerant extension of compressor, to reduce the circular flow of refrigerant, in addition, the branch drawn can lead to refrigeration again
The main road of agent thus can only make some refrigerant delay that cycle be added, and achieve the purpose that the circular flow for reducing refrigerant.
In the scenes such as high temperature heating, cryogenic refrigeration, for example, being freezed or being heated in transition season, it is small that air-conditioning system is in low-pressure ratio
It is run under load condition, be easy to cause the waste of energy consumption, at this point, extra refrigerant is released from compressor, can reduced
The circular flow of refrigerant realizes the low power run of air-conditioning system, reduces system energy consumption.For example, in cooling mode, working as inspection
When measuring current environmental temperature less than predetermined temperature threshold, the aperture of the second by-passing valve can be tuned up, by extra refrigeration
Agent is released from compressor, reduces the circular flow of refrigerant, realizes the low power run of air-conditioning system, reduces system energy consumption.
Technical scheme of the present invention is described in detail above in association with attached drawing, technical solution through the invention, save for
The cost of electric motor temperature reduction heat dissipation, and the operating temperature of motor is effectively reduced, so that the efficiency of motor is played to greatest extent,
The user experience is improved, meanwhile, reduce the cost of radiator structure.
In the present invention, term " first ", " second ", " third " are only used for the purpose of description, and should not be understood as indicating
Or imply relative importance；Term " multiple " indicates two or more；Term " connected ", " connection " etc. should all do broad sense reason
Solution, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be directly connected, it can also
Indirectly connected through an intermediary.For the ordinary skill in the art, above-mentioned art can be understood as the case may be
The concrete meaning of language in the present invention.
In the description of this specification, the description of term " one embodiment " etc. means that the embodiment or example is combined to describe
Particular features, structures, materials, or characteristics be included at least one embodiment or example of the invention.In the present specification,
Schematic expression of the above terms are not necessarily referring to identical embodiment or example.Moreover, the specific features of description, knot
Structure, material or feature can be combined in any suitable manner in any one or more of the embodiments or examples.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of air-conditioning system is used for air conditioner, which is characterized in that including：
At least one compressor, at least one outdoor heat exchanger and at least one indoor heat exchanger；
First by-passing valve is arranged between at least one compressor and at least one outdoor heat exchanger, one end connection
To the exhaust outlet of at least one compressor, the other end is connected to the refrigerant inlet of at least one outdoor heat exchanger；
Second by-passing valve, one end are connected to the drainage exit of at least one compressor, and the other end is connected to the air-conditioning
The muffler of device；
Sensor is arranged at least one outdoor heat exchanger and/or at least one indoor heat exchanger, for detecting
The running parameter of at least one outdoor heat exchanger and/or at least one indoor heat exchanger, and by the running parameter
It is sent to the controller of the air-conditioning system；
The controller is connected to the sensor and first by-passing valve, for receiving from described in the sensor
Running parameter, and the aperture of first by-passing valve is adjusted according to the running parameter, to adjust the refrigeration of the air-conditioning system
The flow of agent；
Wherein, the running parameter includes at least one of or combinations thereof：Operating temperature, condensing pressure, evaporating pressure.
2. air-conditioning system according to claim 1, which is characterized in that the sensor includes at least one of or its group
It closes：
Operating temperature sensor, for detecting at least one outdoor heat exchanger and/or at least one indoor heat exchanger
The operating temperature；
Condensing pressure sensor, the condensing pressure for detecting the air-conditioning system；
Evaporating pressure sensor, the evaporating pressure for detecting the air-conditioning system.
3. air-conditioning system according to claim 1 or 2, which is characterized in that second by-passing valve for control it is described extremely
The flow of the refrigerant in the drainage exit of a few compressor.
4. air-conditioning system according to claim 3, which is characterized in that further include：
Environment temperature sensor is arranged at least one compressor, the current environment for detecting the air-conditioning system
Temperature, so that the controller adjusts according to the current environmental temperature aperture of second by-passing valve.
5. air-conditioning system according to claim 4, which is characterized in that the controller is additionally coupled to the environment temperature and passes
Sensor and second by-passing valve, for receiving the current environmental temperature from the environment temperature sensor, and according to
The current environmental temperature determines whether to adjust the aperture of second by-passing valve, wherein the aperture of second by-passing valve is got over
Greatly, the refrigerant of extraction is more, and the circular flow of the refrigerant is lower.
6. air-conditioning system according to claim 5, which is characterized in that further include：
Throttling set, be arranged between at least one outdoor heat exchanger and at least one indoor heat exchanger, for pair
The refrigerant throttles, wherein the throttling set includes capillary and/or expansion valve.
7. a kind of air conditioner, which is characterized in that including air-conditioning system such as according to any one of claims 1 to 6.
8. a kind of control method of air-conditioning system is used using including air-conditioning system such as according to any one of claims 1 to 6
In air conditioner, which is characterized in that including：
At least one outdoor heat exchanger and/or at least one of the air-conditioning system is detected by the sensor in the air-conditioning system
The running parameter of a indoor heat exchanger；
By the controller in the air-conditioning system, according to the running parameter, the first bypass in the air-conditioning system is adjusted
The aperture of valve is flowed directly at least one room with adjustment from the exhaust outlet of at least one of air-conditioning system compressor
The flow of the refrigerant of the refrigerant inlet of external heat exchanger.
9. the control method of air-conditioning system according to claim 8, which is characterized in that further include：
The current environmental temperature of the air-conditioning system is detected by the environment temperature sensor in the air-conditioning system；
By the controller, according to the load of the current environmental temperature and the air-conditioning system, it is determined whether adjust institute
State the aperture of the second by-passing valve in air-conditioning system；
Wherein, second by-passing valve is arranged in the drainage exit of at least one compressor, second by-passing valve
Aperture is bigger, and the circular flow of the refrigerant is lower.
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| CN109539401B (en) * | 2018-11-13 | 2023-09-12 | 珠海格力电器股份有限公司 | Air conditioner and control method |
| CN109974325A (en) * | 2019-03-07 | 2019-07-05 | 海信家电集团股份有限公司 | Air conditioning system, control method and device thereof and air conditioner |
| CN110160815B (en) * | 2019-05-31 | 2021-11-02 | 深圳市英维克信息技术有限公司 | Testing method of air conditioner controller and upper computer |
| CN112696839B (en) * | 2019-10-18 | 2022-12-27 | 广东美的制冷设备有限公司 | Air conditioning system, air conditioner and control method and control device of air conditioner |
| CN111219852B (en) * | 2020-01-10 | 2021-07-27 | 宁波奥克斯电气股份有限公司 | Defrosting method and device, air conditioner and storage medium |
| CN111473500B (en) * | 2020-04-29 | 2021-11-02 | 广东美的暖通设备有限公司 | Air conditioner and control method and device thereof |
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| CN111998444A (en) * | 2020-08-07 | 2020-11-27 | 深圳中集天达吉荣航空制冷有限公司 | Airplane ground air conditioning unit and defrosting method thereof |
| CN114110813A (en) * | 2021-11-17 | 2022-03-01 | 浙江国祥股份有限公司 | Non-frosting air conditioning unit and control method thereof |
| CN114543267A (en) * | 2022-03-03 | 2022-05-27 | 宁波奥克斯电气股份有限公司 | Air conditioner defrosting control method and control device and air conditioner |
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