CN100520203C - Air conditioning system and method for controlling the same - Google Patents
Air conditioning system and method for controlling the same Download PDFInfo
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- CN100520203C CN100520203C CNB2004100118442A CN200410011844A CN100520203C CN 100520203 C CN100520203 C CN 100520203C CN B2004100118442 A CNB2004100118442 A CN B2004100118442A CN 200410011844 A CN200410011844 A CN 200410011844A CN 100520203 C CN100520203 C CN 100520203C
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/70—Structural association with built-in electrical component with built-in switch
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H43/00—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed
- H01H43/24—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to a non-rotatable moving part
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R25/00—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits
- H01R25/003—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits the coupling part being secured only to wires or cables
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/007—Compression machines, plants or systems with reversible cycle not otherwise provided for three pipes connecting the outdoor side to the indoor side with multiple indoor units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
- F25B2313/0231—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units with simultaneous cooling and heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/26—Problems to be solved characterised by the startup of the refrigeration cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/19—Pressures
- F25B2700/193—Pressures of the compressor
- F25B2700/1931—Discharge pressures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2106—Temperatures of fresh outdoor air
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
An air conditioning system including an outdoor unit having at least one compressor, and at least one outdoor heat exchanger; a plurality of indoor units connected to the outdoor unit; a refrigerant guide unit to guide a refrigerant discharged from the at least one compressor to the indoor units through first and/or second routes; and a control unit to simultaneously control a first quantity of the refrigerant discharged from the at least one compressor to at least one of the indoor units operating in a cooling mode through the first route, and a second quantity of the refrigerant discharged from the at least one compressor to a remainder of the indoor units operating in a heating mode through the second route.
Description
Technical field
The present invention relates to the method for a kind of air-conditioning system and control air-conditioning system, this air-conditioning system comprises a plurality of indoor units that are connected to outdoor unit, and wherein heating and cooling are carried out simultaneously.
Background technology
Usually, air-conditioning system utilizes single outdoor unit and a plurality of indoor unit that is connected to outdoor unit to carry out the air conditioning operation in the interior space.Outdoor unit comprises the outdoor valve of compressor, outdoor heat converter, outdoor fan and motor operation.In the indoor unit each comprises the indoor valve of indoor heat converter, indoor fan and motor operation.
Because the temperature that the resident can feel in the interior space changes according to the variation of season and environment, therefore be applied to used in the operator scheme such as the heating and cooling pattern of chamber unit needn't be consistent, but can differ from one another.Be that operator scheme can comprise the single-mode that all indoor units are all operated under such as the heating or the model identical of refrigerating mode, and some indoor units operates under heating mode and multi-mode that the remaining indoor unit while operates under refrigerating mode.
Here, multi-mode is divided into overall refrigerating mode and overall heating mode, the majority of indoor unit operate under refrigerating mode and the remaining unit of indoor unit is operated under heating mode under overall refrigerating mode, and the majority of indoor unit is operated under heating mode and the remaining unit of indoor unit is operated under refrigerating mode under overall heating mode.
Traditional air-conditioning system opens based on overall refrigerating mode under the situation of beginning operation, and the refrigerant of discharging from compressor is by outdoor heat converter and supply with the indoor unit of operating under refrigerating mode.Then, the refrigerant by the indoor unit operated under refrigerating mode returns compressor.Finish open beginning operation after, supply with the indoor unit of under heating mode, operating dividually from the refrigerant that compressor is discharged, allow air-conditioning system to carry out refrigerating mode and heating mode simultaneously thus.Because the opening beginning operating period of indoor unit under overall refrigerating mode that is set in heating mode under do not carried out heating mode, so traditional air-conditioning system has shortcoming, because heating operation is delayed.
That must consider to begin under air-conditioning system is in the condition of halted state opens the desired operating characteristic of beginning operation, and by opening the desired operating characteristic of main operation that begins under the condition that the beginning operating air conditioning system is stabilized.Yet, almost carry out equally owing to be applied to the control of opening the beginning operation and be applied to the control of opening the main operation of carrying out after the beginning operation, therefore the shortcoming of traditional air-conditioning system is to have reduced operating efficiency.Promptly extremely fluctuate opening operating period beginning air-conditioning system, thus unstable and increased the time that systems stabilisation spent.In addition, because traditional air-conditioning system relates generally to refrigerating mode, therefore the shortcoming of traditional air-conditioning system is that cooling capacity is better relatively, but it is relatively poor to add thermal capacity.
Summary of the invention
Therefore, an aspect of of the present present invention provides the method for a kind of air-conditioning system and control air-conditioning system, wherein under overall refrigerating mode, open operating period beginning and supply with the indoor unit of under heating mode, operating, carry out heating mode thus rapidly from the refrigerant of compressor discharge.
Another aspect of the present invention provides the method for a kind of air-conditioning system and control air-conditioning system, wherein consider in response to system and be in the operating characteristic that opens the beginning operation that halted state begins, and in response to system by opening the operating characteristic control operation of the beginning main operation that begins of stable operation, increase the operating efficiency of system thus.
Aspect that the present invention is other and/or advantage part propose in the following description, and part is apparent owing to describe, or recognize by enforcement of the present invention.
According to an aspect of the present invention, the invention provides a kind of air-conditioning system, this air-conditioning system comprises: outdoor unit, and described outdoor unit comprises: at least one compressor, and at least one outdoor heat converter; Be connected to a plurality of indoor units of outdoor unit; The refrigerant that to discharge from described at least one compressor by first and/or second channel be directed to the refrigerant guidance unit of indoor unit; And control module, described control module is controlled the refrigerant that is discharged to first amount of at least one indoor unit of operating from described at least one compressor by first passage under refrigerating mode simultaneously, and is discharged to the refrigerant of second amount of the remaining indoor unit the indoor unit of operating by second channel from described at least one compressor under heating mode; Control module can the majority of indoor unit under refrigerating mode, operate and the remaining indoor unit of indoor unit under the overall refrigerating mode of operating under the heating mode, separately supply with the refrigerant of discharging by first passage and second channel from described at least one compressor; Control module can comprise: the indoor control unit of control indoor unit; And the outdoor control unit that is connected to indoor control unit; Wherein outdoor control unit is set overall refrigerating mode in response to total cooling capacity of the indoor unit of operating greater than the thermal capacity that always adds of the indoor unit of operating under heating mode under refrigerating mode.
Wherein at least one outdoor heat converter can be installed on the first passage, and driving-close valve can be arranged on the second channel, wherein drive-close valve and will be directed to the indoor unit of under heating mode, operating from second refrigerant of measuring that described at least one compressor is discharged, and not by at least one outdoor heat converter.
According to a further aspect in the invention, the invention provides a kind of method of controlling air-conditioning system, described air-conditioning system is carried out cooling and heating operation simultaneously by a plurality of indoor units being connected to the outdoor unit with at least one outdoor heat converter, and described method comprises step: the operator scheme of initialization system; Whether the operator scheme of determine setting is that the majority of indoor unit is operated under refrigerating mode and overall refrigerating mode that the remaining indoor unit of indoor unit is operated under heating mode; In response to the operator scheme of determine setting is overall refrigerating mode, determines whether system is opening under the beginning pattern to operate, and the described beginning pattern that opens is that system is by opening the beginning from halted state; And operate opening under the beginning pattern in response to definite system, to supply with the indoor unit of under refrigerating mode, operating by first passage from first refrigerant of measuring that at least one compressor is discharged, and simultaneously the refrigerant of second amount be supplied with the indoor unit of operating by second channel under heating mode.
Can set overall refrigerating mode greater than the thermal capacity that always adds of the indoor unit of under heating mode, operating in response to total cooling capacity of the indoor unit of under refrigerating mode, operating.
According to another aspect of the invention, the invention provides a kind of air-conditioning system, described air-conditioning system comprises: outdoor unit, and described outdoor unit comprises: at least one compressor, at least one outdoor heat converter, the outdoor valve of outdoor fan and motor operation; Be connected to a plurality of indoor units of outdoor unit; Be individually set to a plurality of indoor heat converters of indoor unit; Refrigerant guidance unit, its refrigerant that will discharge from described at least one compressor simultaneously are directed to by first passage and are directed to the indoor unit of operating at the indoor unit of operating under the refrigerating mode and by second channel under heating modes; And control module, described control module begins to open beginning operation and be stabilized carrying out main operation by opening the beginning operation in response to system with execution from halted state in response to system successively, and controls in the outdoor valve of described compressor, outdoor fan and motor operation at least one according to the operating characteristic that opens beginning operation and main operation.
Control module can open beginning operation and main operation greater than the thermal capacity execution that always adds of the indoor unit of operating in response to total cooling capacity of the indoor unit of operating under refrigerating mode under heating mode.
In accordance with a further aspect of the present invention, the invention provides a kind of method of controlling air-conditioning system, described air-conditioning system is carried out cooling and heating operation simultaneously by a plurality of indoor units being connected to the outdoor unit with at least one outdoor heat converter, and described method comprises step: the operator scheme of initialization system; Whether the operator scheme of determine setting is that the majority of indoor unit is operated under refrigerating mode and overall refrigerating mode that the remaining indoor unit of indoor unit is operated under heating mode; Opening the beginning in response to system from halted state successively opens beginning operation with execution and is stabilized to carry out main operation by opening the beginning operation in response to system; And control in the outdoor valve of compressor, outdoor fan and motor operation of outdoor unit at least one according to the operating characteristic that opens beginning operation and main operation.
In opening beginning operation, the operation capacity of described at least one compressor can be set at the indoor unit of under refrigerating mode, operating total cooling capacity about 50～80%.
In opening the beginning operation, the opening degree of the outdoor valve of motor operation can be set according to total cooling capacity of the indoor unit of operating under refrigerating mode.
In opening beginning operation, the operation capacity of outdoor fan can always adding the difference between the thermal capacity and determine according to outdoor temperature according to total cooling capacity of the indoor unit of operating under refrigerating mode and the indoor unit of operating under heating mode.
Carry out successively open beginning operation and main operation during, whether the pressure that is detected by the pressure sensor of the outlet that is installed in described at least one compressor can compare with predetermined pressure to determine to open the beginning and operate and stop.
In main operation, the operation capacity of described at least one compressor can be set according to total cooling capacity of the indoor unit of operating under refrigerating mode.
In main operation, what the opening degree of the outdoor valve of motor operation can be according to the indoor unit of operating under heating mode always adds thermal capacity to being set by the ratio that always adds total operation capacity that the thermal capacity addition obtains of total cooling capacity of the indoor unit of operating and the indoor unit operated under heating mode under refrigerating mode.
Always adding thermal capacity can be inversely proportional to the opening degree of the outdoor valve of motor operation.
The pressure sensor of detection from the pressure of the refrigerant of compressor discharge can be set, and in main operation, the operation capacity of outdoor fan can be set to so that the pressure that detects and supply with the refrigerant of the indoor unit of operating by pressure sensor under heating mode reaches the normal pressure of setting.
Description of drawings
Above-mentioned and/or others of the present invention are by below in conjunction with the description of accompanying drawing to embodiment, can become obviously and easier to understand, wherein:
Fig. 1 is the schematic diagram according to the air-conditioning system of the embodiment of the invention;
Fig. 2 is the block diagram of the air-conditioning system shown in Fig. 1;
Fig. 3 is the schematic diagram of the air-conditioning system shown in Fig. 1, and wherein three indoor units are operated under refrigerating mode and an indoor unit is operated under heating mode; And
Fig. 4 A and 4B are the flow charts according to the method for the air-conditioning system of the embodiment of the invention shown in the control chart 3.
The specific embodiment
Below will be in detail with reference to embodiments of the invention, its example is shown in the drawings, and wherein identical label is represented identical parts in whole context.Describing embodiment below with reference to the accompanying drawings is intended to the present invention is made an explanation.
The present invention relates to the air-conditioning system that a kind of a plurality of indoor unit is connected to outdoor unit.
As shown in Figure 1, comprise outdoor unit 100, four indoor unit 200a, 200b, 200c and 200d according to the air-conditioning system of the embodiment of the invention and between outdoor unit 100 and indoor unit 200a, 200b, 200c and 200d to change the direction conversion loop 300 of cryogen flow direction.
One end of the cross valve 104 of outdoor unit 100 is connected to High- pressure air valve 301a, 301b, 301c and the 301d in direction conversion loop 300 by high-pressure air pipe (HPP).In addition, the reservoir 107 of outdoor unit 100 is connected to low pressure gas valve 302a, 302b, 302c and the 302d in direction conversion loop 300 by low pressure tracheae (LPP).
Public pipe (RP) is installed between the outdoor heat converter 101a and 101b and direction conversion loop 300 of outdoor unit 100, and the outdoor valve 102 of motor operation is installed in the public pipe (RP).With outdoor valve 102 in parallel opening of motor operation-close valve 111 as flow control valve.
Pipeline EP1, EP2, EP3 and the EP4 of indoor heat converter 201a, 201b, 201c and 201d is connected to public pipe (RP).
As shown in Figure 2, the air-conditioning system according to the embodiment of the invention as shown in fig. 1 comprises the outdoor control unit 120 of controlling outdoor unit 100, first to fourth indoor control unit 210a, 210b, 210c and 210d and the linkage unit 122 of control indoor unit 200a, 200b, 200c and 200d, described linkage unit 122 is between outdoor control unit 120 and first to fourth indoor control unit 210a, 210b, 210c and 210d, with both-way communication information, thus operating air conditioning system.
What valve 109 and 111 were opened-closed in the outdoor valve operating unit 130 of motor operation of the outdoor fan operating unit 128 of cross valve operating unit 126, the operating room external fan 105 of the compressor operation unit 124 of operate compressor 103a and 103b, operation cross valve 104, the outer valve 102 of operating electrical machines operating room and operation opens-closes the lead-out terminal that valve operating unit 132 is connected to outdoor control unit 120.
The indoor temperature that first to fourth indoor control unit 210a, 210b, 210c and 210d detect indoor temperature transmitter 203a, 203b, 203c and 203d respectively, utilize temperature that function key and RCU set and operator scheme and offer outdoor control unit 120 about the information of the capacity of indoor heat converter 201a, 201b, 201c and 201d by the user.
First to fourth indoor control unit 210a, 210b, 210c and 210d combine with outdoor control unit 120, control the indoor valve 202a of motor operation, 202b, 202c and 202d and indoor fan (not shown) respectively.
Fig. 3 shows the air-conditioning system shown in Fig. 1, wherein under heating mode, operate, and remaining three indoor units (being indoor unit 200b, 200c, 200d) are operated under refrigerating mode according to indoor unit of embodiments of the invention (being indoor unit 200a).
Under the overall refrigerating mode of air-conditioning system, outdoor control unit 120 operate compressor 103a and 103b open the outdoor valve 102 of motor operation to initial degree, and drive-close valve 109.Outdoor control unit 120 is open at the High-pressure air valve 301a of the indoor unit 200a of operation under the heating mode, and is closed in indoor unit 200b, the 200c of operation under the refrigerating mode and High- pressure air valve 301b, 301c and the 301d of 200d.In addition, outdoor unit 120 is closed in the low pressure gas valve 302a of the indoor unit 200a of operation under the heating mode, and is open at indoor unit 200b, the 200c of operation under the refrigerating mode and low pressure gas valve 302b, 302c and the 302d of 200d.
The part of the refrigerant of discharging from compressor 103a and 103b shown in the arrow that solid line is represented by driving-close valve 109 and check-valves 110, supply to then the indoor unit 200a that under heating mode, operates.The other parts of the refrigerant of discharging from compressor 103a and 103b shown in the arrow that dotted line is represented by outdoor heat converter 101a and 101b and the outdoor valve 102 of motor operation, then with refrigerant interflow by indoor unit 200a.The refrigerant at interflow is successively by the indoor unit 200b, the 200c that operate under refrigerating mode and the indoor valve 202b of motor operation, 202c and 202d and indoor heat converter 201b, 201c and the 201d of 200d, with low pressure gas pipeline (LPP), return compressor 103a and 103b then.Refrigerant produces circulation by above-mentioned loop.
The overall cooling capacity that is in the indoor unit 200b, the 200c that operate under the refrigerating mode and 200d greater than the situation that adds thermal capacity that is in the indoor unit 200a that operates under the heating mode under, outdoor control unit 120 is set overall refrigerating mode, and controls the operation of air-conditioning system based on overall refrigerating mode.Opening operating period beginning of overall refrigerating mode, the refrigerant of discharging from compressor 103a and 103b is separated into two parts as shown in Figure 3, allows the indoor unit 200a that operates under heating mode to realize heating rapidly thus.In addition, the capacity (speed) that outdoor control unit 120 is set the capacity of compressor 103a and 103b and outdoor fan 113 is with the beginning characteristic of the operator scheme that satisfies air-conditioning system, and outdoor control unit 120 is controlled the opening degree of the outdoor valve 102 of motor operation, makes the operating efficiency maximum of air-conditioning system thus.
Describe the operation shown in Fig. 3 in detail with reference to Fig. 4 A and 4B below according to the air-conditioning system of the embodiment of the invention.
When electric power was added to air-conditioning system shown in Fig. 3, outdoor control unit 120 was carried out initialization (400).Initialization refers to according to the automatic process that realizes of the predetermined control program of operating air conditioning system.
After the initialization, indoor control unit 210a, 210b, 210c and 210d are set to difference the operator scheme signal of the heating and cooling pattern of corresponding indoor unit 200a, 200b, 200c and 200d, be assigned to the capacity of indoor heat converter 201a, 201b, 201c and the 201d of corresponding indoor unit 200a, 200b, 200c and 200d, design temperature, and indoor temperature offers outdoor control unit 120 by linkage unit 122.Outdoor control unit 120 receives outdoor temperature (410) from outdoor temperature sensor 108.
Outdoor control unit 120 adds thermal capacity (heating load) and cooling capacity (cooling load) based on the calculation of capacity of indoor heat converter 201a, 201b, 201c and 201d that indoor unit 200a, 200b, 200c and 200d provide.Here, the capacity summation of indoor heat converter that is set under the refrigerating mode three indoor unit 200b, 200c of operation and 200d to be obtaining total cooling capacity (CQ), and the capacity that is set in the indoor heat converter 201a of an indoor unit 200a of operation heating mode under is used as and always adds thermal capacity (HQ) (420).
Outdoor control unit 120 determines that whether total cooling capacity (CQ) is greater than always adding thermal capacity (HQ) (430).Determining that as operation 430 result total cooling capacity (CQ) is not more than under the situation that always adds thermal capacity (HQ), the operator scheme of air-conditioning system is set at such as refrigerating mode, heating mode and indoor unit a plurality of in operation under the heating mode and a kind of (431) of the correspondence in each operator scheme of the overall heating mode that remaining indoor unit is operated under refrigerating mode.
Under the result as operation 430 determined that total cooling capacity (CQ) is greater than the situation that always adds thermal capacity (HQ), the operator scheme of air-conditioning system was set at overall refrigerating mode (440).
Outdoor control unit 120 determines whether that the overall refrigerating mode of air-conditioning system begins (450).Determining as the result who operates 450 under the situation that the overall refrigerating mode of air-conditioning system begins, outdoor control unit 120 control cross valve operating units 126 passages with conversion cross valve 104, and control is opened-is closed valve operating unit 132 and drives-close valve 109 with unlatching, thus the corresponding overall refrigerating mode (460) of refrigerant flow.
Outdoor control unit 120 control compressor operation unit 124 are with initial operation volume operation compressor 103a and 103b according to compressor 103a and 103b.Here, the initial operation capacity of compressor 103a and 103b is set at the about 50～80% of total cooling capacity (CQ) of calculating in 420 in operation, thereby prevents air-conditioning system overload (470).
The outdoor valve operating unit 130 of outdoor control unit 120 control motor operation arrives initial opening degree with the outer valve 102 of operating electrical machines operating room.Here, the initial opening degree of the outdoor valve 102 of motor operation is set by total cooling capacity (CQ), thereby prevents air-conditioning system overload (480).
Outdoor control unit 120 is based on total cooling capacity (CQ) and always add the operation capacity (speed) that difference (CQ-HQ) between the thermal capacity (HQ) is set outdoor fan 113, and control room external fan operating unit 128 is with the operation capacity operating room external fan 113 (500) based on the setting of outdoor fan 113.
The part of the refrigerant of discharging from compressor 103a and 103b supplies to indoor unit 200b, the 200c and the 200d that operate then by outdoor heat converter 101a and 101b and the outdoor valve 102 of motor operation under refrigerating mode.Simultaneously, the other part of the refrigerant of discharging from compressor 103a and 103b is by driving-closes valve 109 and check-valves 110, and do not pass through outdoor heat converter 101a and 101b, supplies to the indoor unit 200a that operates under heating mode then.
Opening operating period beginning, pressure sensor 105 detects the pressure of the refrigerant of discharging, and then the pressure feed that detects is arrived outdoor control unit 120 (510).The pressure of the discharge refrigerant that outdoor control unit 120 will be supplied with compares with being used to finish the setting pressure that opens the beginning operating and setting, and determines whether to finish and open beginning operation (520).
Determine not finish under the situation that opens the beginning operation in the result as operation 520, the operation return 460 of air-conditioning system is carried out and is opened the beginning operation.
Open the beginning operation determining to finish as operation 520 result, or determine under the situation that the overall refrigerating mode of air-conditioning system do not begin as operation 450 result, because air-conditioning system is stabilized owing to opening the beginning operation, so outdoor control unit 120 is set the operation capacity of compressor 103a and 103b.Here, the operation capacity of compressor 103a and 103b is set (530) based on overall cooling capacity (CQ).
Outdoor control unit 120 control compressor operation unit 124 are with setting operation volume operation compressor 103a and the 103b (540) according to compressor 103a and 103b.
Outdoor control unit 120 is based on always adding the opening degree (550) of thermal capacity (HQ) with the outdoor valve 102 of ratio setting motor operation of total operation capacity (CQ+HQ), and control motor operation outdoor valve operating unit 130 is with based on the outer valve 102 of the opening degree operating electrical machines operating room of setting.Here, the opening degree of the outdoor valve 102 of motor operation be set under the heating mode operation indoor unit 200a to add thermal capacity big more, the opening degree of the outdoor valve 102 of motor operation is more little, thereby makes the amount of refrigerant that supplies to the indoor unit 200a of operation under the heating mode reduce (560).
Outdoor control unit 120 is set the operation capacity of outdoor fans 113, so that the pressure of discharging and supplying to the refrigerant of the indoor unit 200a that operates from compressor 103a and 103b under heating mode reaches normal pressure (570).
In order suitably to utilize the refrigerant supply to the indoor unit 200a that operates under heating mode to realize the heating of expectation, the temperature of the refrigerant of discharging from compressor 103a and 103b must be greater than predetermined temperature.In an embodiment of the present invention, the pressure corresponding to the refrigerant of the discharge that is detected by pressure sensor 105 of the temperature of the refrigerant of discharging from compressor 103a and 103b keeps greater than predetermined pressure.The pressure of the refrigerant of discharging from compressor 103a and 103b changes according to the operation capacity (speed) of outdoor fan 113.Promptly under the situation that the operation capacity of outdoor fan 113 increases, the heat exchanger effectiveness of outdoor heat converter 101a and 101b increases, and the discharge pressure of compressor 103a and 103b increases.And under the situation that the operation capacity of outdoor fan 113 reduces, the heat exchanger effectiveness of outdoor heat converter 101a and 101b reduces, and the discharge pressure of compressor 103a and 103b reduces.
Outdoor control unit 120 control room external fan operating units 128 are with the setting operation volume operation outdoor fan 113 (580) based on outdoor fan 113.
Indoor control unit 210b, 210c that operates under refrigerating mode and 210d receive the temperature of the entrance and exit of indoor heat converter 201b, 201c and 201d by Tube Temperature Sensor 204b, 204c and 204d, calculate degree of superheat based on the difference between the temperature at the entrance and exit place of correspondence, and the opening degree of the indoor valve 202b of control motor operation, 202c and 202d, thereby the degree of superheat of calculating reaches the degree of superheat (S590) of setting.
The indoor control unit 210a complete opening indoor valve 202a of motor operation (600) that under heating mode, operates.
Outdoor control unit 120 determines whether that the operation of air-conditioning system stops (610).Determine that in the result as operation 610 operation of air-conditioning system does not have under the situation of termination, the operating process of air-conditioning system turns back to operation 430, to proceed operation.
Under the situation that the operation of determining air-conditioning system as the result who operates 610 stops, outdoor control unit 120 stops the operation of compressor 103a and 103b, outdoor fan 113 and the outdoor valve 102 of motor operation, thereby stops the operation (620) of air-conditioning system.
Can obviously find out from above-mentioned explanation, the invention provides a kind of air-conditioning system, and the method for control air-conditioning system, wherein under overall refrigerating mode, opening operating period beginning and supplying with the indoor unit of under heating mode, operating from the refrigerant of compressor discharge, carry out heating mode thus rapidly.Owing to consider and open the desired operating characteristic control of main operation compressor, outdoor fan and the outdoor valve of motor operation under beginning desired operating characteristic of operation and the overall refrigerating mode, therefore in that to open operating period beginning air-conditioning system stable rapidly, and nonoverload, and consider cooling and add thermal capacity under the situation of system stability under overall refrigerating mode operate compressor, outdoor fan and the outdoor valve of motor operation, thereby have the good cooling and the efficiency of heating surface.
Although illustrate and described embodiments of the invention above, but, for a person skilled in the art clearly, under the situation that does not break away from principle of the present invention and aim, can change these embodiments, scope of the present invention is limited by claim and equivalent thereof.
Claims (17)
1. air-conditioning system comprises:
Outdoor unit, described outdoor unit comprises:
At least one compressor, and
At least one outdoor heat converter;
Be connected to a plurality of indoor units of outdoor unit;
The refrigerant that to discharge from described at least one compressor by first and/or second channel be directed to the refrigerant guidance unit of indoor unit; And
Control module, described control module is controlled the refrigerant that is discharged to first amount of at least one indoor unit of operating from described at least one compressor by first passage under refrigerating mode simultaneously, and is discharged to the refrigerant of second amount of the remaining indoor unit the indoor unit of operating by second channel from described at least one compressor under heating mode;
It is characterized in that:
Control module the majority of indoor unit under refrigerating mode, operate and the remaining indoor unit of indoor unit under the overall refrigerating mode of operating under the heating mode, separately supply with the refrigerant of discharging by first passage and second channel from described at least one compressor;
Wherein control module comprises:
The indoor control unit of control indoor unit; And
Be connected to the outdoor control unit of indoor control unit;
Wherein outdoor control unit is set overall refrigerating mode in response to total cooling capacity of the indoor unit of operating greater than the thermal capacity that always adds of the indoor unit of operating under heating mode under refrigerating mode.
2. air-conditioning system according to claim 1 also comprises:
Be arranged on opening in the second channel-close valve;
Wherein at least one outdoor heat converter is installed on the first passage, and the refrigerant of opening-close second amount that valve will discharge from described at least one compressor be directed to the indoor unit of operating under heating mode, and not by at least one outdoor heat converter.
3. method of controlling air-conditioning system, described air-conditioning system is carried out cooling and heating operation simultaneously by a plurality of indoor units being connected to the outdoor unit with at least one outdoor heat converter, and described method comprises step:
The operator scheme of initialization system;
Whether the operator scheme of determine setting is that the majority of indoor unit is operated under refrigerating mode and overall refrigerating mode that the remaining indoor unit of indoor unit is operated under heating mode;
In response to the operator scheme of determine setting is overall refrigerating mode, determines whether system is opening under the beginning pattern to operate, and the described beginning pattern that opens is that system opens the beginning from halted state; And
Operate opening under the beginning pattern in response to definite system, to supply with the indoor unit of under refrigerating mode, operating by first passage from first refrigerant of measuring that at least one compressor is discharged, and simultaneously the refrigerant of second amount be supplied with the indoor unit of operating by second channel under heating mode.
4. method according to claim 3 is characterized in that:
Total cooling capacity in response to the indoor unit of operating under refrigerating mode is set overall refrigerating mode greater than the thermal capacity that always adds of the indoor unit of operating under heating mode.
5. air-conditioning system comprises:
Outdoor unit, described outdoor unit comprises:
At least one compressor,
At least one outdoor heat converter,
Outdoor fan, and
The outdoor valve of motor operation;
Be connected to a plurality of indoor units of outdoor unit;
Be individually set to a plurality of indoor heat converters of indoor unit;
Refrigerant guidance unit, its refrigerant that will discharge from described at least one compressor simultaneously are directed to by first passage and are directed to the indoor unit of operating at the indoor unit of operating under the refrigerating mode and by second channel under heating modes; And
Control module, described control module begins to carry out to open the beginning operation and be initiated stable operation in response to system from halted state in response to system successively carries out main operation, and according to described at least one compressor of operating characteristic control that opens beginning operation and main operation, outdoor fan, and the outdoor valve of motor operation.
6. air-conditioning system according to claim 5 is characterized in that:
Control module opens beginning operation and main operation in response to total cooling capacity of the indoor unit of operating greater than the thermal capacity execution that always adds of the indoor unit of operating under heating mode under refrigerating mode.
7. method of controlling air-conditioning system, described air-conditioning system is carried out cooling and heating operation simultaneously by a plurality of indoor units being connected to the outdoor unit with at least one outdoor heat converter, and described method comprises step:
The operator scheme of initialization system;
Whether the operator scheme of determine setting is that the majority of indoor unit is operated under refrigerating mode and overall refrigerating mode that the remaining indoor unit of indoor unit is operated under heating mode;
Begin to carry out from halted state in response to system successively and open the beginning operation and be stabilized the execution main operation by opening the beginning operation in response to system; And
According to the compressor of the operating characteristic control outdoor unit that opens beginning operation and main operation, at least one in the outdoor valve of outdoor fan and motor operation.
8. method according to claim 7 is characterized in that:
In opening beginning operation, the operation capacity of described at least one compressor be set at the indoor unit of under refrigerating mode, operating total cooling capacity about 50～80%.
9. method according to claim 7 is characterized in that:
In opening the beginning operation, the opening degree of the outdoor valve of motor operation is set according to total cooling capacity of the indoor unit of operating under refrigerating mode.
10. method according to claim 7 is characterized in that:
In opening beginning operation, the operation capacity of outdoor fan always adds the difference between the thermal capacity and determines according to outdoor temperature according to total cooling capacity of the indoor unit of operating under refrigerating mode and the indoor unit operated under heating mode.
11. method according to claim 7 is characterized in that:
During beginning operation and main operation are opened in execution successively, pressure that is detected by the pressure sensor of the outlet that is installed in described at least one compressor and the pressure of being scheduled to are compared to determine whether open the beginning operation stops.
12. method according to claim 7 is characterized in that:
In main operation, the operation capacity of described at least one compressor is set according to total cooling capacity of the indoor unit of operating under refrigerating mode.
13. method according to claim 7 is characterized in that:
In main operation, the opening degree of the outdoor valve of motor operation is set the ratio that always adds total operation capacity that the thermal capacity addition obtains of total cooling capacity by the indoor unit operated under refrigerating mode and the indoor unit operated under heating mode according to the thermal capacity that always adds of the indoor unit operated under heating mode.
14. method according to claim 13 is characterized in that:
The opening degree that always adds thermal capacity and the outdoor valve of motor operation is inversely proportional to.
15. method according to claim 7 is characterized in that:
The pressure sensor of detection from the pressure of the refrigerant of compressor discharge is set, and in main operation, the operation capacity of outdoor fan is set to so that the pressure that detects and supply with the refrigerant of the indoor unit of operating by pressure sensor under heating mode reaches the normal pressure of setting.
16. an air-conditioning system comprises:
Outdoor unit with at least one compressor; And
Be connected to a plurality of indoor units of outdoor unit;
Wherein at least one in the indoor unit is by the refrigerant of first passage reception from described at least one compressor, under heating mode, to operate, and the remaining indoor unit in the indoor unit is by the refrigerant of second channel reception from described at least one compressor, under refrigerating mode, to operate, supply with by two passages simultaneously from the refrigerant zero hour of system.
17. a method of controlling air-conditioning system, described air-conditioning system are carried out cooling and heating operation simultaneously in a plurality of indoor units that are connected to the outdoor unit with at least one compressor, described method comprises step:
Beginning operation is opened in execution, and wherein refrigerant supplies at least one the indoor unit of operating and the remaining indoor unit of the indoor unit operated from described at least one compressor simultaneously under refrigerating mode under heating mode;
Wherein the refrigerant of first amount by first passage supply with heating mode down in the indoor unit of operation described at least one, and the refrigerant of second amount is supplied with the remaining indoor unit of the indoor unit of operating under refrigerating mode by second channel.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020040003733A KR20050075976A (en) | 2004-01-19 | 2004-01-19 | Air conditioning system and control method thereof |
| KR20040003733 | 2004-01-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1645004A CN1645004A (en) | 2005-07-27 |
| CN100520203C true CN100520203C (en) | 2009-07-29 |
Family
ID=34617466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100118442A Expired - Fee Related CN100520203C (en) | 2004-01-19 | 2004-09-22 | Air conditioning system and method for controlling the same |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20050155361A1 (en) |
| EP (1) | EP1555495A3 (en) |
| KR (1) | KR20050075976A (en) |
| CN (1) | CN100520203C (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060030761A (en) | 2004-10-06 | 2006-04-11 | 삼성전자주식회사 | Multi type air conditioning system and thereof method |
| KR20060070885A (en) * | 2004-12-21 | 2006-06-26 | 엘지전자 주식회사 | Air conditioner |
| KR100766177B1 (en) * | 2006-08-04 | 2007-10-10 | 주식회사 대우일렉트로닉스 | Method for controlling operating of air conditioner |
| KR101151321B1 (en) * | 2007-02-06 | 2012-06-08 | 삼성전자주식회사 | Multi system air conditioner and control method thereof |
| KR100851906B1 (en) * | 2007-03-23 | 2008-08-13 | 삼성전자주식회사 | Multi air conditioner capable of heating and cooling simultaneously and control method thereof |
| KR101346448B1 (en) * | 2007-09-03 | 2014-01-10 | 엘지전자 주식회사 | Multi air conditioner system and auto changeover method for multi air conditioner system |
| CN102112819B (en) * | 2008-10-29 | 2013-07-31 | 三菱电机株式会社 | Air conditioner |
| EP2416081B1 (en) * | 2009-04-01 | 2024-03-20 | Mitsubishi Electric Corporation | Air-conditioning device |
| WO2010131378A1 (en) | 2009-05-12 | 2010-11-18 | 三菱電機株式会社 | Air conditioner |
| WO2010131335A1 (en) * | 2009-05-13 | 2010-11-18 | 三菱電機株式会社 | Air conditioning apparatus |
| US20110219795A1 (en) * | 2010-03-10 | 2011-09-15 | Chisun Ahn | Core assembly for air conditioner and air conditioner having the same |
| JP5404487B2 (en) * | 2010-03-23 | 2014-01-29 | 三菱電機株式会社 | Multi-room air conditioner |
| ES2785060T3 (en) * | 2010-03-25 | 2020-10-05 | Mitsubishi Electric Corp | Air conditioning device |
| CN106322580A (en) * | 2016-08-16 | 2017-01-11 | 广东美的暖通设备有限公司 | Multi-split air conditioning system and defrosting control method and defrosting control device therefor |
| KR20200134809A (en) | 2019-05-23 | 2020-12-02 | 엘지전자 주식회사 | An air conditioning apparatus and control method thereof |
| CN110578991B (en) * | 2019-09-16 | 2021-02-09 | 海信（山东）空调有限公司 | Control method and device of air conditioner capacity mode, air conditioner and readable storage medium |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0336474A (en) * | 1989-07-03 | 1991-02-18 | Toshiba Corp | Air conditioner |
| JP2839343B2 (en) * | 1990-08-10 | 1998-12-16 | 株式会社日立製作所 | Multi air conditioner |
| US5237833A (en) * | 1991-01-10 | 1993-08-24 | Mitsubishi Denki Kabushiki Kaisha | Air-conditioning system |
| AU649810B2 (en) * | 1991-05-09 | 1994-06-02 | Mitsubishi Denki Kabushiki Kaisha | Air conditioning apparatus |
| JPH1194395A (en) * | 1997-09-19 | 1999-04-09 | Fujitsu General Ltd | Multi-room air conditioner |
| AU2410501A (en) * | 2000-06-07 | 2001-12-17 | Samsung Electronics Co., Ltd. | Control system for starting of air conditioner and control method thereof |
| KR100487149B1 (en) * | 2002-06-14 | 2005-05-03 | 삼성전자주식회사 | Air conditioning apparatus and control method thereof |
| KR100504509B1 (en) * | 2003-01-16 | 2005-08-03 | 엘지전자 주식회사 | Multi-type air conditioner for cooling/heating the same time |
-
2004
- 2004-01-19 KR KR1020040003733A patent/KR20050075976A/en not_active Application Discontinuation
- 2004-08-27 US US10/926,985 patent/US20050155361A1/en not_active Abandoned
- 2004-09-20 EP EP04255710A patent/EP1555495A3/en not_active Withdrawn
- 2004-09-22 CN CNB2004100118442A patent/CN100520203C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1645004A (en) | 2005-07-27 |
| EP1555495A3 (en) | 2012-05-02 |
| EP1555495A2 (en) | 2005-07-20 |
| KR20050075976A (en) | 2005-07-26 |
| US20050155361A1 (en) | 2005-07-21 |
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