CN104633796B - Air-conditioning system and control method - Google Patents
Air-conditioning system and control method Download PDFInfo
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- CN104633796B CN104633796B CN201310558069.1A CN201310558069A CN104633796B CN 104633796 B CN104633796 B CN 104633796B CN 201310558069 A CN201310558069 A CN 201310558069A CN 104633796 B CN104633796 B CN 104633796B
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- refrigerant
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0003—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
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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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
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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
- F24F2110/00—Control inputs relating to air properties
-
- 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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
Abstract
The present invention discloses a kind of air-conditioning system, including outdoor heat exchanger, indoor heat exchanger, throttling arrangement, compressor and control circuit.The first regulator and the second regulator are respectively provided between heat exchanger and compressor between outdoor heat exchanger and compressor and indoors, control circuit controls the first regulator and the second regulator to improve pressure at expulsion and reduce pressure of inspiration(Pi).Because air-conditioning system of the present invention adjusts pressure at expulsion and pressure of inspiration(Pi) by the first regulator and the second regulator, and then improve the pressure at expulsion of compressor and the ratio of pressure of inspiration(Pi), the coolant quantity that the coolant quantity for flowing into indoor heat exchanger can be thus increased and reduce outflow indoor heat exchanger, the coolant quantity of indoor heat exchanger is set to be rapidly achieved optimal refrigerant amount, so improve the speed of air-conditioning system cooling and warming.
Description
Technical field
The present invention relates to air-conditioning technical field, and in particular to a kind of air-conditioning system and control method.
Background technology
With the improvement of people ' s living standards, requirement of the people to air-conditioning system has been not limited solely to freeze, has heated
On, comfortableness is increasingly becoming focus of concern.And existing air-conditioning system is after powering, due to needing by longer time
Could set up pressure balance, and reach maximum pressure than time it is also long, so as to cause existing air-conditioning system refrigerated medium
The speed of heat is slow, have impact on the comfortableness effect of air-conditioning.
The content of the invention
It is an object of the invention to provide a kind of air-conditioning system and control method, it is intended to improve air-conditioning system cooling and warming
Speed.
In order to realize the object of the invention, the present invention provides a kind of air-conditioning system, including：Outdoor heat exchanger, indoor heat exchanger,
Throttling arrangement, compressor and control circuit, outdoor heat exchanger have the first outdoor interface end and second Room external tapping end, indoor
Heat exchanger has the first indoor interface end and second Room inner joint end, and throttling arrangement is connected to second Room external tapping end and the first Room
Between inner joint end；Compressor has refrigerant import end and refrigerant exit end.Outdoor heat exchanger the first outdoor interface end and
Between the refrigerant exit end of compressor and indoors the refrigerant import end of the second Room inner joint end of heat exchanger and compressor it
Between be respectively provided with the first regulator and the second regulator, control circuit controls the first regulator and the second regulator
Improve pressure at expulsion and reduce pressure of inspiration(Pi).
Preferably, described air-conditioning system also includes four-way valve, and four-way valve has four ports, first regulator
It is connected between the first outdoor interface end of the outdoor heat exchanger and the corresponding port of four-way valve, second regulator connects
Connect between the second Room inner joint end of the indoor heat exchanger and the corresponding port of four-way valve, the compressor refrigerant import end and
The port connection corresponding with four-way valve respectively of refrigerant exit end.
Preferably, described air-conditioning system also includes four-way valve, and four-way valve has four ports, the outdoor heat exchanger
The first outdoor interface end and indoor heat exchanger the port connection corresponding with four-way valve respectively of second Room inner joint end, described the
One regulator is connected between the refrigerant exit end of the compressor and the corresponding port of four-way valve, second regulator
It is connected between the refrigerant import end of the compressor and the corresponding port of four-way valve.
Preferably, the control circuit has control module, obtains indoor environment temperature indoor temperature transmitter, acquisition
The outdoor refrigerant sensor and the acquisition indoor heat exchanger of the outdoor interface end refrigerant pressure of the first of the outdoor heat exchanger
Second Room inner joint end refrigerant pressure indoor refrigerant sensor, the indoor temperature transmitter obtain indoor environment temperature
When the design temperature spent close to user preset reaches default decision content, the first regulator and second are closed in control module control
Regulator, the refrigerant pressure and/or indoor refrigerant sensor that the control module is obtained according to outdoor refrigerant sensor is obtained
Refrigerant pressure the first regulator and/or the second regulator is adjusted to adjust pressure at expulsion and pressure of inspiration(Pi).
Preferably, first regulator by the first supercharging device and the first decompressor connecting or mode arranged side by side
Be formed by connecting, second regulator by the second supercharging device and the second decompressor with connect or mode arranged side by side connect and
Into.
Because air-conditioning system of the present invention adjusts pressure at expulsion and air-breathing by the first regulator and the second regulator
Pressure, and then the pressure at expulsion of compressor and the ratio of pressure of inspiration(Pi) are improve, thus the cold of inflow indoor heat exchanger can be increased
Matchmaker measures and reduces the coolant quantity for flowing out indoor heat exchanger, the coolant quantity of indoor heat exchanger is rapidly achieved optimal refrigerant amount, so
Improve the speed of air-conditioning system cooling and warming.
The corresponding present invention provides a kind of control method of air-conditioning system, and the air-conditioning system includes outdoor heat exchanger, room
Interior heat exchanger, throttling arrangement, compressor and control circuit, outdoor heat exchanger have the first outdoor interface end and second Room external
Mouth end, indoor heat exchanger has the first indoor interface end and second Room inner joint end, and throttling arrangement is connected to second Room external tapping
Between end and the first indoor interface end；Compressor has refrigerant import end and refrigerant exit end, and the method includes：
S10, between the first outdoor interface end of outdoor heat exchanger and the refrigerant exit end of compressor, heat exchanger indoors
Second Room inner joint end and the refrigerant import end of compressor between be respectively provided with regulator and set obtain with indoor ring
The indoor temperature transmitter of border temperature；
S20, improves pressure at expulsion and reduces pressure of inspiration(Pi) to reduce interior by controlling circuit to control two regulators
Heat exchanger reaches the time of default optimal refrigerant amount；And
S30, the indoor environment temperature that control circuit obtains indoor temperature transmitter enters with the design temperature of user preset
Row contrast, indoors environment temperature close to the design temperature of user preset reach default decision content when, control circuit control close
Close two regulators.
Preferably, in the S20, specifically include：
S21, sets the outdoor refrigerant sensor of the first outdoor interface end refrigerant pressure for obtaining outdoor heat exchanger and sets
Put the indoor refrigerant sensor of the second Room inner joint end refrigerant pressure for obtaining indoor heat exchanger；
S22, control circuit controls to open two regulators by control module；
S23, control module judges indoor according to the refrigerant pressure that outdoor refrigerant sensor and indoor refrigerant sensor are obtained
Whether the coolant quantity of heat exchanger is more than default optimal refrigerant amount；
S24, when the coolant quantity of heat exchanger is more than default optimal refrigerant amount indoors, a control module regulation at least pressure regulation
Device or compressor come adjust pressure at expulsion and/or pressure of inspiration(Pi) so that the coolant quantity of indoor heat exchanger maintain it is default optimal
Coolant quantity.
Preferably, in the S23, specifically：Obtained according to outdoor refrigerant sensor and indoor refrigerant sensor
Whether the ratio of refrigerant pressure judges the coolant quantity of indoor heat exchanger more than default optimal refrigerant amount.
Preferably, in the S24, specifically：The first outdoor interface end or indoor heat exchange according to outdoor heat exchanger
Whether the refrigerant pressure at the second Room inner joint end of device is in maximum pressure boost PHmax and default minimum boost pressure PHmin
Between, and/or the refrigerant pressure of the first outdoor interface end at second Room inner joint end or outdoor heat exchanger of indoor heat exchanger be
It is no default minimum decompressed pressure PLmin and default maximum decompressed pressure PLmax between judge indoor heat exchanger
Whether coolant quantity maintains default optimal refrigerant amount.
Preferably, in the S30, specifically include：
S31, indoor environment temperature and user preset that control circuit is obtained indoor temperature transmitter by control module
Design temperature contrasted；
S32, when environment temperature is less than default decision content with the difference of the design temperature of user preset indoors, controls mould
Two regulators are closed in block control.
Because the control method of air-conditioning system of the present invention improves air-conditioning by controlling the supercharging and decompression of two regulators
The pressure at expulsion of system and the pressure of inspiration(Pi) of reduction air-conditioning system, the coolant quantity such that it is able to make indoor heat exchanger are rapidly achieved most
Good coolant quantity, and then improve the speed of air-conditioning system cooling and warming.
Brief description of the drawings
Fig. 1 is the block diagram of the preferred embodiment of air-conditioning system of the present invention；
Fig. 2 is first regulator and the second regulator of air-conditioning system shown in Fig. 1 respectively by supercharging device and decompression
Block diagram when device is in series；
Fig. 3 is first regulator and the second regulator of air-conditioning system shown in Fig. 1 respectively by supercharging device and decompression
Block diagram when device is formed in parallel；
Fig. 4 is the block diagram of the control circuit of air-conditioning system of the present invention；
Fig. 5 is the structure square frame that the first regulator and the second regulator are connected between compressor and four-way valve
Figure；
Fig. 6 is the flow chart of the control method of air-conditioning system of the present invention；
Fig. 7 is the particular flow sheet of the control method of air-conditioning system of the present invention.
The realization of the object of the invention, functional characteristics and advantage will be described further referring to the drawings in conjunction with the embodiments.
Specific embodiment
It should be appreciated that specific embodiment described herein is only used to explain the present invention, it is not intended to limit the present invention.
The present invention provides a kind of air-conditioning system, refers to Fig. 1 and 4, there is disclosed an embodiment of air-conditioning system of the present invention,
In the present embodiment, the air-conditioning system include four-way valve 110, outdoor heat exchanger 120, throttling arrangement 130, indoor heat exchanger 140,
Compressor 150, the first regulator 160, the second regulator 170 and control circuit 180.
Four-way valve 110 has four ports, and it is respectively port 111, port 112, port 113 and port 114.Outdoor is changed
Hot device 120 has the first outdoor interface end 121 and second Room external tapping end 122.Indoor heat exchanger 140 has the first indoor interface
End 141 and second Room inner joint end 142.Throttling arrangement 130 is connected to the second Room external tapping of outdoor heat exchanger 120 by pipeline
Between end 122 and the first indoor interface end 141 of indoor heat exchanger 140.
Compressor 150 has refrigerant import end 151 and refrigerant exit end 152, the refrigerant import end 151 and four-way valve 110
Port 114 by pipeline connect, the refrigerant exit end 152 is connected with the port 111 of four-way valve 110 by pipeline.
First regulator 160 is connected to port 112 and the outdoor heat exchanger 120 of four-way valve 110 by pipeline
Between first outdoor interface end 121.When air-conditioning system works in refrigeration mode, from the refrigerant exit end 152 of compressor 150
The refrigerant of outflow flows into the first regulator 160 through the port 111 of four-way valve 110 and port 112, then through the first regulator
160 pressurizeed after flow into the first outdoor interface end 121 of outdoor heat exchanger 120, so as to improve the exhaust pressure of air-conditioning system
Power；When air-conditioning system works in heating mode, the first regulator 160 will connect from the first outdoor of outdoor heat exchanger 120
The port 112 of four-way valve 110 is delivered to after the refrigerant decompression of mouthful end 121 outflow, then refrigerant through four-way valve 110 port 114
Refrigerant import end 151 with compressor 150 flows into compressor 150, so as to reduce the pressure of inspiration(Pi) of air-conditioning system.
Fig. 2 and Fig. 3 is referred to, the first regulator 160 can be the single device with supercharging and decompression, also may be used
It is formed by connecting with series connection or mode arranged side by side with by the first supercharging device 161 and the first decompressor 162.In the first regulator
160 by the first supercharging device 161 and the first decompressor 162 with connect or mode arranged side by side be formed by connecting when, first supercharging dress
Put 161 can for booster pump, booster, pressurized cylinder, pressure charging valve, heater, turbo charging installation or other can directly increase
Plus-pressure increases stressed device indirectly, the first decompressor 162 can for pressure-reducing valve, pressure reducer, pressure-regulating valve or
Other devices that can directly reduce pressure or reduce pressure indirectly.
Fig. 2 is referred to, is in series by the first supercharging device 161 and the first decompressor 162 in the first regulator 160
When, the first supercharging device 161 is connected the first outdoor interface end 121 of outdoor heat exchanger 120, connect the first decompressor 162
The port 112 of four-way valve 110 is connect, when air-conditioning system works in refrigeration mode, is made from the refrigerant exit end of compressor 150
The refrigerant of 152 outflows is input into the first decompressor 162, the first decompressor 162 through the port 111 of four-way valve 110 and port 112
The first supercharging device 161, the first supercharging device 161 are delivered to after not depressurized in less scope by refrigerant decompression or by refrigerant
The first outdoor interface end 121 of outdoor heat exchanger 120 is delivered to after refrigerant is pressurizeed；Heating mode is in air-conditioning system
During work, the refrigerant from the first outdoor outflow of interface end 121 of outdoor heat exchanger 120 is set to flow into the first supercharging device 161, first
Supercharging device 161 is delivered to the first decompressor 162, first after not being pressurized in less scope by refrigerant supercharging or by refrigerant
Decompressor 162 is delivered to the port 112 of four-way valve 110 after refrigerant is depressurized, then refrigerant through four-way valve 110 port 114
Refrigerant import end 151 with compressor 150 flows into compressor 150.
Fig. 3 is referred to, is formed in parallel by the first supercharging device 161 and the first decompressor 162 in the first regulator 160
When, the first supercharging device 161 and the first decompressor 162 are connected to port 112 and the outdoor heat exchanger of four-way valve 110
Between the outdoor interface end 121 of the first of 120, when air-conditioning system works in refrigeration mode, then the first supercharging device is opened
161, end the first decompressor 162, so that the refrigerant flowed out from the refrigerant exit end 152 of compressor 150 is through four-way valve
110 port 111 and port 112 are input into the first supercharging device 161, are conveyed after then being pressurizeed by the first supercharging device 161
To the first outdoor interface end 121 of outdoor heat exchanger 120；When air-conditioning system works in heating mode, then open first and subtract
Pressure device 162, ends the first supercharging device 161, so that being flowed out from the first outdoor interface end 121 of outdoor heat exchanger 120
Refrigerant through the first decompressor 162 depressurize after convey four-way valve 110 port 112, then refrigerant through four-way valve 110 port
114 and compressor 150 refrigerant import end 151 flow into compressor 150.
Fig. 1 is referred to, the second regulator 170 is changed by the port 113 and interior that pipeline is connected to four-way valve 110
Between the second Room inner joint end 142 of hot device 140.When air-conditioning system works in refrigeration mode, the second regulator 170 will
The port 113 of four-way valve 110 is conveyed after the refrigerant decompression flowed out from the second Room inner joint end 142 of indoor heat exchanger 140, then
Refrigerant flows into compressor 150 through the port 114 of four-way valve 110 and the refrigerant import end 151 of compressor 150, so as to reduce air-conditioning
The pressure of inspiration(Pi) of system；When air-conditioning system works in heating mode, flowed out from the refrigerant exit end 152 of compressor 150
Refrigerant is input into the second regulator 170 through the port 111 of four-way valve 110 and port 113, then enters through the second regulator 170
The second Room inner joint end 142 of indoor heat exchanger 140 is delivered to after row pressurization, so as to improve the pressure at expulsion of air-conditioning system.
Fig. 2 and Fig. 3 is referred to, the second regulator 170 can also be the single device with supercharging and decompression,
Can be formed by connecting with series connection or mode arranged side by side by the second supercharging device 171 and the second decompressor 172.
Fig. 2 is referred to, is in series by the second supercharging device 171 and the second decompressor 172 in the second regulator 170
When, the second supercharging device 171 is connected the second Room inner joint end 142 of indoor heat exchanger 140, connect the second decompressor 172
The port 113 of four-way valve 110 is connect, when air-conditioning system works in refrigeration mode, is made from the second Room of indoor heat exchanger 140
The refrigerant of the outflow of interface end 142 flows into the second supercharging device 171, and be not pressurized for refrigerant or increase refrigerant by the second supercharging device 171
The second decompressor 172 is delivered to after being pressed in less scope, the second decompressor 172 is delivered to four-way after refrigerant is depressurized
The port 113 of valve 110, then refrigerant through four-way valve 110 port 114 and compressor 150 refrigerant import end 151 flow into compression
Machine 150；When air-conditioning system works in heating mode, make the refrigerant flowed out from the refrigerant exit end 152 of compressor 150 through four
The port 111 of port valve 110 and port 113 are input into the second decompressor 172, and refrigerant is not depressurized or will by the second decompressor 172
Refrigerant is delivered to the second supercharging device 171 after depressurizing in less scope, after the second supercharging device 171 is pressurizeed refrigerant
It is delivered to the second Room inner joint end 142 of indoor heat exchanger 140.
Fig. 3 is referred to, is formed in parallel by the second supercharging device 171 and the second decompressor 172 in the second regulator 170
When, the second supercharging device 171 and the second decompressor 172 are connected to port 113 and the indoor heat exchanger of four-way valve 110
Between 140 second Room inner joint end 142, when air-conditioning system works in refrigeration mode, then the second decompressor is opened
172, end the second supercharging device 171, so that the refrigerant flowed out from the second Room inner joint end 142 of indoor heat exchanger 140
Through the second decompressor 172 depressurize after convey four-way valve 110 port 113, then refrigerant through four-way valve 110 the He of port 114
The refrigerant import end 151 of compressor 150 flows into compressor 150；When air-conditioning system works in heating mode, then second is opened
Supercharging device 171, ends the second decompressor 172, so that the refrigerant flowed out from the refrigerant exit end 152 of compressor 150
The second supercharging device 171 is flowed into through the port 111 of four-way valve 110 and port 113, is then added by the second supercharging device 171
The second Room external tapping end 142 of indoor heat exchanger 140 is delivered to after pressure.
Fig. 1 and 4 is referred to, control circuit 180 controls commutation, the rotating speed of compressor 150 and first tune of four-way valve 140
The regulator 170 of pressure device 160 and second is opened.Control circuit 180 control the first regulator 160 and the second regulator
170 pressure for flowing out refrigerant from the first regulator 160 and the second regulator 170 to adjust respectively, so as to adjust air-conditioning system
The pressure at expulsion or pressure of inspiration(Pi) of system, so that the coolant quantity of indoor heat exchanger 140 is rapidly achieved optimal refrigerant amount.The control circuit
180 include control module 181 and the indoor temperature transmitter 182, the outdoor refrigerant sensor 183 that are connected with control module 181
With indoor refrigerant sensor 184.
Indoor temperature transmitter 182 is used to obtain indoor environment temperature.Outdoor refrigerant sensor 183 is disposed in the outdoor heat exchange
Between the outdoor regulator 160 of interface end 121 and first of the first of device 120, outdoor heat exchanger 120 is flowed in or out to obtain
The refrigerant pressure of the first outdoor refrigerant of interface end 121, the outdoor refrigerant sensor 183 is pressure sensor, or can be turned
It is changed to other type sensors of pressure, such as temperature sensor.Indoor refrigerant sensor 184 can also be temperature sensor or pressure
Force snesor, it is disposed in the interior between the second Room inner joint end 142 of heat exchanger 140 and the second regulator 170, to detect
The refrigerant pressure at the second Room inner joint end 142 of outflow or inflow indoor heat exchanger 140.
Indoor environment temperature, outdoor refrigerant sensor 183 that control module 181 is obtained according to indoor temperature transmitter 182
The first regulator of refrigerant pressure control 160 and second that the refrigerant pressure of acquisition and indoor refrigerant sensor 184 are obtained is adjusted
Pressure device 170, so as to adjust the pressure from the first regulator 160 and the outflow refrigerant of the second regulator 170 to improve exhaust
Pressure and reduction pressure of inspiration(Pi), so that the coolant quantity of indoor heat exchanger 140 maintains optimal refrigerant amount, or control module 181
The rotating speed of compressor 150 is controlled to adjust pressure at expulsion and pressure of inspiration(Pi), so that the coolant quantity of indoor heat exchanger 140 is maintained most
Good coolant quantity.
Because air-conditioning system of the present invention connects by the first outdoor of the port 112 of four-way valve 110 and outdoor heat exchanger 120
Mouth connects the first regulator 160 between end 121, in the second Room of the port 113 of four-way valve 110 and indoor heat exchanger 140
The second regulator 160 is connected between interface end 142, the first regulator 160 and the second pressure regulation are controlled by controlling circuit 180
Device 170 flows out the pressure of refrigerant to adjust respectively from the first regulator 160 and the second regulator 170, such that it is able to
Pressure at expulsion is improved when air-conditioning system is started shooting and pressure of inspiration(Pi) is reduced, and then improves the pressure at expulsion and air-breathing of compressor 150
The ratio of pressure, thus the coolant quantity of inflow indoor heat exchanger 140 can be increased and reduce the refrigerant for flowing out indoor heat exchanger 140
Amount, makes the coolant quantity of indoor heat exchanger 140 be rapidly achieved optimal refrigerant amount, so improve the speed of air-conditioning system cooling and warming
Degree.
Certainly, the first regulator 160 and the link position of the second regulator 170 can have various changes, as long as will pressure
The refrigerant of the outflow of refrigerant exit end 152 of contracting machine 150 is pressurizeed and will be flowed into the refrigerant import end 151 of compressor 150
The connected mode that refrigerant is depressurized, the first regulator 160 is such as connected to the refrigerant exit end 152 of compressor 150
And the port 111 of four-way valve 110 between, the second regulator 170 is connected to port 114 and the compressor 150 of four-way valve 110
Refrigerant import end 151 between, as shown in Figure 5.
Additionally, above-described embodiment air-conditioning system can work in refrigeration mode work and heating mode, certainly according to application,
Air-conditioning system can be set to only have refrigeration mode, so as to omit four-way valve 110 or not held by four-way valve 110
Mouth switching.
Correspondingly, the present invention also provides a kind of control method of air-conditioning system, refers to Fig. 1, Fig. 4 and 6, and the method includes
Following steps：
S10, between the first outdoor interface end 121 of outdoor heat exchanger 120 and the refrigerant exit end 152 of compressor 150,
Indoors first is respectively provided between the second Room inner joint end 142 and the refrigerant import end 151 of compressor 150 of heat exchanger 140
The regulator 170 of regulator 160 and second and setting are obtained with the indoor temperature transmitter 182 of indoor environment temperature；
S20, controls the first regulator 160 and the second regulator 170 to improve air-conditioning system by controlling circuit 180
Pressure at expulsion and reduce air-conditioning system pressure of inspiration(Pi)；
Fig. 7 is referred to, controls the first regulator 160 and the second regulator 170 to improve in the control circuit 180
The pressure at expulsion of air-conditioning system and the step of reduce the pressure of inspiration(Pi) of air-conditioning system in, specifically, comprising the following steps：
S21, sets the outdoor refrigerant sensor of the first outdoor refrigerant pressure of interface end 121 for obtaining outdoor heat exchanger 120
183 and set obtain indoor heat exchanger 140 the refrigerant pressure of second Room inner joint end 142 indoor refrigerant sensor 184；
S22, control circuit 180 controls to open the first regulator 160 and the second regulator by control module 181
170 with improve air-conditioning system pressure at expulsion and reduce air-conditioning system pressure of inspiration(Pi)；
S23, the refrigerant pressure that control module 181 is obtained according to outdoor refrigerant sensor 183 and indoor refrigerant sensor 184
Whether the coolant quantity of indoor heat exchanger 140 is judged more than default optimal refrigerant amount, and the coolant quantity of the indoor heat exchanger 140 is
It is no to be connect more than the first outdoor that default optimal refrigerant amount is the outdoor heat exchanger 120 obtained according to outdoor refrigerant sensor 183
The second Room inner joint end 142 of the indoor heat exchanger 140 that the refrigerant pressure at mouth end 121 and indoor refrigerant sensor 184 are obtained
The ratio of refrigerant pressure judges, that is, according to the refrigerant after being pressurized through first regulator 160 or the second regulator 170
The ratio of pressure and the refrigerant pressure before being depressurized through the second regulator 170 and the first regulator 160 judges, in this implementation
In example, when air-conditioning system is in refrigeration mode, adjusted according to the refrigerant pressure after being pressurized through the first regulator 160 and through second
Whether the ratio K of the refrigerant pressure before the decompression of pressure device 170 is more than default ratio K max to judge the cold of indoor heat exchanger 140
Whether matchmaker's amount is more than default optimal refrigerant amount, when air-conditioning system is in heating mode, increases according to through the second regulator 170
Whether the ratio K of refrigerant pressure after pressure and the refrigerant pressure before being depressurized through the first regulator 160 is more than default ratio
Kmax judges whether the coolant quantity of indoor heat exchanger 140 reaches default optimal refrigerant amount；
S24, when the coolant quantity of heat exchanger 140 is more than default optimal refrigerant amount indoors, the regulation of control module 181 first
The regulator 170 of regulator 160 and/or second with reduce pressure at expulsion and/or improve pressure of inspiration(Pi) so that indoor heat exchanger
140 coolant quantity maintains default optimal refrigerant amount, or control module adjusts the rotating speed of compressor 150 so that interior
The coolant quantity of heat exchanger 140 maintains default optimal refrigerant amount, so as to further improve cooling and warming speed；
The control module 181 adjusts the first regulator 160 and/or the second regulator 170 to reduce pressure at expulsion
And/or improve pressure of inspiration(Pi) and the coolant quantity of indoor heat exchanger 140 is maintained the process of default optimal refrigerant amount, specifically
It is：By according to the refrigerant pressure after being pressurized through the first regulator 160 or the second regulator 170 whether in maximum boost pressure
Between power PHmax and default minimum boost pressure PHmin, and/or through the second regulator 170 or the first regulator 160
Refrigerant pressure before decompression whether default minimum decompressed pressure PLmin and default maximum decompressed pressure PLmax between
To judge；
S30, indoor environment temperature and the design temperature of user preset that control circuit 180 obtains indoor temperature transmitter
Contrasted, indoors environment temperature close to the design temperature of user preset reach default decision content when, control circuit 180 control
System closes the first regulator 160 and the second regulator 170, even if also the first regulator 160 and the second regulator 170
Only play a part of to convey refrigerant, without being pressurized refrigerant or being depressurized；
Fig. 7 is referred to, default decision content is reached close to the design temperature of user preset in the environment temperature indoors
In, specifically, comprising the following steps：
The indoor environment temperature that S31 control circuits 180 are obtained indoor temperature transmitter 182 by control module 181 with
The design temperature of user preset is contrasted；
S32, indoors environment temperature close to the design temperature of user preset reach default decision content when, control module
The first regulator 160 and the second regulator 170 are closed in 181 controls, and in the present embodiment, the environment temperature indoors connects
It is design temperature according to indoor environment temperature and user preset that the design temperature of nearly user preset is reached in default decision content
Difference whether judge less than default decision content.
Because the control method of air-conditioning system of the present invention is by controlling the first regulator 160 and the second regulator 170
Supercharging and decompression come improve air-conditioning system pressure at expulsion and reduce air-conditioning system pressure of inspiration(Pi), such that it is able to change interior
The coolant quantity of hot device 140 is rapidly achieved optimal refrigerant amount, and then improves the speed of air-conditioning system cooling and warming.
The preferred embodiments of the present invention are these are only, the scope of the claims of the invention is not thereby limited, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of air-conditioning system, including outdoor heat exchanger, indoor heat exchanger, throttling arrangement, compressor and control circuit, it is outdoor
Heat exchanger has the first outdoor interface end and second Room external tapping end, and indoor heat exchanger has the first indoor interface end and second Room
Inner joint end, throttling arrangement is connected between second Room external tapping end and the first indoor interface end；Compressor has refrigerant import
End and refrigerant exit end；
Characterized in that, between the first outdoor interface end of outdoor heat exchanger and the refrigerant exit end of compressor and indoors
The first regulator and the second pressure regulation are respectively provided between the second Room inner joint end of heat exchanger and the refrigerant import end of compressor
Device, control circuit controls the first regulator and the second regulator to improve pressure at expulsion and reduce pressure of inspiration(Pi)；
The air-conditioning system in refrigeration mode work when, the refrigerant flowed out from the refrigerant exit end of compressor is filled through the first pressure regulation
The first outdoor interface end that outdoor heat exchanger is flowed into after pressurizeing is put, so as to improve the pressure at expulsion of air-conditioning system, is changed from interior
The refrigerant of the second Room inner joint end outflow of hot device flows into pressure after being depressurized through the second regulator through the refrigerant import end of compressor
Contracting machine, so as to reduce the pressure of inspiration(Pi) of air-conditioning system；And/or
The air-conditioning system in heating mode work when, from the refrigerant of the first of outdoor heat exchanger the outdoor interface end outflow through the
Refrigerant import end after the decompression of one regulator through compressor flows into compressor, so that the pressure of inspiration(Pi) of air-conditioning system is reduced, from
The refrigerant of the refrigerant exit end outflow of compressor is delivered to the second Room of indoor heat exchanger after being pressurizeed through the second regulator
Inner joint end, so as to improve the pressure at expulsion of air-conditioning system.
2. air-conditioning system as claimed in claim 1, it is characterised in that also including four-way valve, four-way valve has four ports, institute
The first regulator is stated to be connected between the first outdoor interface end of the outdoor heat exchanger and the corresponding port of four-way valve, it is described
Second regulator is connected between the second Room inner joint end and the corresponding port of four-way valve of the indoor heat exchanger, the compression
The port connection corresponding with four-way valve respectively of machine refrigerant import end and refrigerant exit end.
3. air-conditioning system as claimed in claim 1, it is characterised in that also including four-way valve, four-way valve has four ports, institute
Corresponding with four-way valve respectively hold at the second Room inner joint end of the first outdoor interface end and indoor heat exchanger of stating outdoor heat exchanger
Mouth connection, first regulator is connected between the refrigerant exit end of the compressor and the corresponding port of four-way valve, institute
The second regulator is stated to be connected between the refrigerant import end of the compressor and the corresponding port of four-way valve.
4. air-conditioning system as claimed in claim 1, it is characterised in that the control circuit has control module, obtains indoor
The outdoor refrigerant of the indoor temperature transmitter of environment temperature, the first outdoor interface end refrigerant pressure of the acquisition outdoor heat exchanger
The indoor refrigerant sensor of the second Room inner joint end refrigerant pressure of sensor and the acquisition indoor heat exchanger, in the room
The indoor environment temperature that interior temperature sensor is obtained close to the design temperature of user preset reach default decision content when, control mould
The first regulator and the second regulator, the refrigerant that the control module is obtained according to outdoor refrigerant sensor are closed in block control
The refrigerant pressure that pressure and/or indoor refrigerant sensor are obtained adjusts the first regulator and/or the second regulator to adjust
Pressure at expulsion and pressure of inspiration(Pi).
5. air-conditioning system as claimed in claim 1, it is characterised in that first regulator is by the first supercharging device and
To connect or mode arranged side by side is formed by connecting, second regulator is depressurized one decompressor by the second supercharging device and second
Device is connecting or mode arranged side by side is formed by connecting.
6. a kind of control method of air-conditioning system, the air-conditioning system include outdoor heat exchanger, indoor heat exchanger, throttling arrangement,
Compressor and control circuit, outdoor heat exchanger have the first outdoor interface end and second Room external tapping end, indoor heat exchanger tool
There are the first indoor interface end and second Room inner joint end, throttling arrangement is connected to second Room external tapping end and the first indoor interface end
Between；Compressor has refrigerant import end and refrigerant exit end, it is characterised in that the method includes：
S10, between the first outdoor interface end of outdoor heat exchanger and the refrigerant exit end of compressor, indoors heat exchanger the
The first regulator and the second regulator, Yi Jishe are respectively provided between two indoor interface ends and the refrigerant import end of compressor
Acquisition is put with the indoor temperature transmitter of indoor environment temperature；
S20, improves pressure at expulsion and reduces pressure of inspiration(Pi) to reduce indoor heat exchange by controlling circuit to control two regulators
Device reaches the time of default optimal refrigerant amount；And
S30, it is right that the indoor environment temperature that control circuit obtains indoor temperature transmitter is carried out with the design temperature of user preset
Than, indoors environment temperature close to the design temperature of user preset reach default decision content when, control circuit control close two
Regulator.
7. the control method of air-conditioning system as claimed in claim 6, it is characterised in that in the S20, specifically include：
S21, the outdoor refrigerant sensor and setting for setting the first outdoor interface end refrigerant pressure for obtaining outdoor heat exchanger is obtained
Take the indoor refrigerant sensor of the second Room inner joint end refrigerant pressure of indoor heat exchanger；
S22, control circuit controls to open two regulators by control module；
S23, control module judges indoor heat exchange according to the refrigerant pressure that outdoor refrigerant sensor and indoor refrigerant sensor are obtained
Whether the coolant quantity of device is more than default optimal refrigerant amount；
S24, when the coolant quantity of heat exchanger is more than default optimal refrigerant amount indoors, a control module regulation at least regulator
Or compressor adjusts pressure at expulsion and/or pressure of inspiration(Pi) so that the coolant quantity of indoor heat exchanger maintains default optimal refrigerant
Amount.
8. the control method of air-conditioning system as claimed in claim 7, it is characterised in that in the S23, specifically：Root
The coolant quantity of indoor heat exchanger is judged according to the ratio of outdoor refrigerant sensor and the refrigerant pressure of indoor refrigerant sensor acquisition
Whether default optimal refrigerant amount is more than.
9. the control method of air-conditioning system as claimed in claim 7, it is characterised in that in the S24, specifically：Root
According to the first outdoor interface end or indoor heat exchanger of outdoor heat exchanger second Room inner joint end refrigerant pressure whether in maximum
Between boost pressure PHmax and default minimum boost pressure PHmin, and/or indoor heat exchanger second Room inner joint end or
The refrigerant pressure of the first outdoor interface end of outdoor heat exchanger whether default minimum decompressed pressure PLmin and it is default most
Judge whether the coolant quantity of indoor heat exchanger maintains default optimal refrigerant amount between big decompressed pressure PLmax.
10. the control method of air-conditioning system as claimed in claim 6, it is characterised in that in the S30, specifically include：
S31, the indoor environment temperature that control circuit is obtained indoor temperature transmitter by control module sets with user preset
Constant temperature degree is contrasted；
S32, when environment temperature is less than default decision content with the difference of the design temperature of user preset indoors, control module control
System closes two regulators.
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| CN110081523B (en) * | 2019-04-30 | 2021-12-03 | 广东美的制冷设备有限公司 | Outdoor unit, air conditioning system, control method and device and readable storage medium |
| CN110057042B (en) * | 2019-04-30 | 2022-03-22 | 广东美的制冷设备有限公司 | Control method and device of air conditioning system and computer readable storage medium |
| CN110440472A (en) * | 2019-07-08 | 2019-11-12 | 合肥通用机械研究院有限公司 | A kind of cooling cycle system of partial phase change |
| CN112665098A (en) * | 2020-12-09 | 2021-04-16 | 珠海格力电器股份有限公司 | Air conditioner pipeline pressure control method, controller and air conditioner |
| CN115451623B (en) * | 2022-08-31 | 2024-02-20 | 青岛海尔空调电子有限公司 | Pressure regulating method and device for air conditioner and fixed-frequency air conditioner |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1176901A (en) * | 1996-09-17 | 1998-03-25 | 瓦莱奥空调公司 | Vehicle heating installation using evaporator as heat source |
| CN201335582Y (en) * | 2009-01-05 | 2009-10-28 | 江苏新誉空调系统有限公司 | Track train air conditioner refrigerating system with pressure compensation function |
| CN202521935U (en) * | 2012-04-12 | 2012-11-07 | 珠海格力电器股份有限公司 | Multi-connected air conditioning system |
| CN203605379U (en) * | 2013-11-11 | 2014-05-21 | 美的集团股份有限公司 | Air conditioning system |
-
2013
- 2013-11-11 CN CN201310558069.1A patent/CN104633796B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1176901A (en) * | 1996-09-17 | 1998-03-25 | 瓦莱奥空调公司 | Vehicle heating installation using evaporator as heat source |
| CN201335582Y (en) * | 2009-01-05 | 2009-10-28 | 江苏新誉空调系统有限公司 | Track train air conditioner refrigerating system with pressure compensation function |
| CN202521935U (en) * | 2012-04-12 | 2012-11-07 | 珠海格力电器股份有限公司 | Multi-connected air conditioning system |
| CN203605379U (en) * | 2013-11-11 | 2014-05-21 | 美的集团股份有限公司 | Air conditioning system |
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