CN110319541A - A kind of load out control control method of huge discharge connected machine system - Google Patents
A kind of load out control control method of huge discharge connected machine system Download PDFInfo
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- CN110319541A CN110319541A CN201910578064.2A CN201910578064A CN110319541A CN 110319541 A CN110319541 A CN 110319541A CN 201910578064 A CN201910578064 A CN 201910578064A CN 110319541 A CN110319541 A CN 110319541A
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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
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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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
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
- F24F11/67—Switching between heating and cooling modes
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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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
- F24F2110/10—Temperature
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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
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of load out control control methods of huge discharge connected machine system, the multi-line system includes outdoor unit and multiple indoor units, each indoor unit includes indoor heat exchanger and electric expansion valve, the outdoor unit includes outdoor heat exchanger, compressor and unloading solenoid valve, and the unloading solenoid valve is used to be connected to gas side and the return side out of the compressor；The control method includes: that the multi-line system enters operating mode, detects and judge the start and stop state of each indoor heat exchanger；If operating mode is refrigeration mode, obtains the outlet temperature parameter of indoor heat exchanger in the open state and calculate outlet temperature average value, the aperture of the unloading solenoid valve is determined according to the outlet temperature average value；If operating mode is heating mode, obtains the middle portion temperature parameter of indoor heat exchanger in the open state and calculate middle portion temperature average value, the aperture of the unloading solenoid valve is determined according to the middle portion temperature average value.
Description
Technical field
The present invention relates to air conditioning multi-couple machine technical fields, more particularly, to a kind of unloading of huge discharge connected machine system
Adjustment control method.
Background technique
In present multi-line system, indoor unit model is small, and the refrigerating capacity of demand is small, and the frequency-changeable compressor of huge discharge
Even if with it is minimum can running frequency operation, fan-out capability is also far longer than indoor unit demand (such as 20 frequency-changeable compressors
Minimum operation 10Hz, ability of the compressor capacity also above 3000W), cause compressor capacity big, and indoor unit capability demand
It is the phenomenon that contradiction of very little, i.e. " low load with strong power ", big in compressor of outdoor unit output, and indoor machine evaporation very little and its
In the case that matched electric expansion valve bore is also small, since electric expansion valve bore is small, multi-line system can be frequently caused
High-pressure, which is crossed, causes multi-line system due to pressure protection frequent start-stop；
Meanwhile in cooling mode, indoor set heat exchanger is unable to the complete liquid refrigerants of evaporating completely, will lead to evaporator refrigerant temperature
It is very low, eventually lead to that indoor set heat exchanger frosting is serious to freeze, the anti-freeze of indoor unit is protected prevent indoor unit is from holding
Continuous refrigeration, causes the variation of ambient temperature of indoor very big, eventually affects the comfort that user uses；
And in a heating mode, indoor set heat exchanger is unable to total condensation, and it is very high to will lead to refrigerant condensation temperature, indoor unit meeting
There is high temperature-proof protection, occurs causing the environment temperature of indoor to become since indoor unit cannot continue to heat after high temperature-proof is protected
Change is very big, eventually affects the comfort that user uses.
Summary of the invention
In view of the deficiencies of the prior art, the purpose of the present invention is to provide a kind of huge discharge connected machines that energy valid value is high
The load out control control method of system.
To achieve the above object, a kind of scheme provided by the invention are as follows: load out control of huge discharge connected machine system
Control method, the multi-line system include outdoor unit and multiple indoor units, each indoor unit include indoor heat exchanger and
Electric expansion valve, the outdoor unit include outdoor heat exchanger, compressor and unloading solenoid valve, and the unloading solenoid valve is for connecting
Lead to the compressor goes out gas side and return side；The control method includes: that the multi-line system enters operating mode, detection
And judge the start and stop state of each indoor heat exchanger；If operating mode is refrigeration mode, interior in the open state is obtained
The outlet temperature parameter of heat exchanger simultaneously calculates outlet temperature average value, determines the unloading according to the outlet temperature average value
The aperture of solenoid valve；If operating mode is heating mode, the middle portion temperature ginseng of indoor heat exchanger in the open state is obtained
Middle portion temperature average value is counted and calculated, the aperture of the unloading solenoid valve is determined according to the middle portion temperature average value.
Further, if the operating mode is refrigeration mode, the outlet of indoor heat exchanger in the open state is obtained
Temperature parameter simultaneously calculates outlet temperature average value, and the aperture of the unloading solenoid valve is determined according to the outlet temperature average value
It include: the aperture that the unloading solenoid valve is determined according to the outlet temperature average value include: when the outlet temperature is flat
Mean value be greater than or equal to the first maximum preset temperature value when, it is determined that it is described unloading solenoid valve aperture be it is fully closed, when it is described go out
When mouth temperature averages are less than or equal to the first minimum preset temperature value, it is determined that the aperture of the unloading solenoid valve is standard-sized sheet,
When the outlet temperature average value is less than the first maximum preset temperature value and is greater than the first minimum preset temperature value, according to default
The aperture negative correlativing relation of fixed outlet temperature average value and unloading solenoid valve determines the aperture of the unloading solenoid valve.
Further, the first maximum preset temperature value is 8 DEG C, and the described first minimum preset temperature value is 2 DEG C.
Further, if the operating mode is heating mode, the middle part of indoor heat exchanger in the open state is obtained
Temperature parameter simultaneously calculates middle portion temperature average value, and the aperture of the unloading solenoid valve is determined according to the middle portion temperature average value
It include: when the middle portion temperature average value is greater than or equal to the second maximum preset temperature value, it is determined that the unloading solenoid valve
Aperture be standard-sized sheet, when the middle portion temperature average value is less than or equal to the second minimum preset temperature value, it is determined that described to unload
Carry solenoid valve aperture be it is fully closed, when the middle portion temperature average value is less than the second maximum preset temperature value and to be greater than second minimum
When preset temperature value, unloaded according to the aperture positive correlation determination of presetting middle portion temperature average value and unloading solenoid valve
Carry the aperture of solenoid valve.
Further, the second maximum preset temperature value is 55 DEG C, and the described second minimum preset temperature value is 44 DEG C.
Further, the control method further include: indoor heat exchanger if it is in the open state is only one, then obtaining should
Indoor environment temperature parameter corresponding to indoor heat exchanger, when operating mode is refrigeration mode, according to going out for the indoor heat exchanger
Mouth temperature averages and indoor environment temperature parameter determine the aperture of the unloading solenoid valve jointly；When operating mode is heating mould
Formula determines the unloading solenoid valve according to the middle portion temperature average value of the indoor heat exchanger and indoor environment temperature parameter jointly
Aperture.
Further, described when operating mode is refrigeration mode, according to the outlet temperature average value of the indoor heat exchanger and room
Interior environment temperature parameter determine jointly it is described unloading solenoid valve aperture include: indoor environment temperature parameter is subtracted it is presetting
Indoor target temperature obtains cooling difference, when the cooling difference is greater than or equal to the first maximum temperature difference value, it is determined that described
Unload solenoid valve aperture be it is fully closed, when the cooling difference is less than or equal to the first minimum temperature difference value, it is determined that described to unload
The aperture for carrying solenoid valve is standard-sized sheet, when the cooling difference is less than the first maximum temperature difference value and is greater than the first minimum temperature difference value,
The aperture of the unloading solenoid valve is determined according to the negative correlativing relation of presetting cooling difference and unloading electromagnetism valve opening；By root
According to the aperture and the unloading electricity according to determined by indoor environment temperature parameter for unloading solenoid valve determined by outlet temperature average value
The aperture of magnet valve compares, and chooses maximum aperture and makees the final aperture for being determined as the unloading solenoid valve.
Further, the first maximum temperature difference value is 5 DEG C, and the first minimum temperature difference value is -1 DEG C.
Further, when operating mode is heating mode, according to the middle portion temperature average value of the indoor heat exchanger and indoor ring
Border temperature parameter determines that the aperture of the unloading solenoid valve includes: that presetting indoor target temperature is subtracted indoor environment jointly
Temperature parameter obtains heating difference, when the heating difference is greater than or equal to the second maximum temperature difference value, it is determined that the unloading
The aperture of solenoid valve be it is fully closed, when the heating difference is less than or equal to the second minimum temperature difference value, it is determined that the unloading is electric
The aperture of magnet valve is standard-sized sheet, when the heating difference is less than the second maximum temperature difference value and is greater than the second minimum temperature difference value, according to
The negative correlativing relation of presetting heating difference and unloading electromagnetism valve opening determines the aperture of the unloading solenoid valve；It will be in
The aperture of solenoid valve is unloaded determined by portion's temperature averages and unloads solenoid valve according to determined by indoor environment temperature parameter
Aperture compare, choose maximum aperture and make the final aperture for being determined as the unloading solenoid valve.
Further, the second maximum temperature difference value is 5 DEG C, and the second minimum temperature difference value is -1 DEG C.
Compared with the prior art, the beneficial effect of the present invention is that accordingly controlled by the aperture to unloading solenoid valve, from
And when demand of each indoor heat exchanger to refrigerant is lower, so that unloading is passed through from the refrigerant that gas side comes out that goes out of compressor in part
Solenoid valve is directly back to the return side of compressor, and when demand of each indoor heat exchanger to refrigerant is lower, then controls unloading electricity
The aperture of magnet valve is bigger, and the refrigerant that gas side comes out out from compressor is more offloaded to the return side of compressor, a side
Face reduces the refrigerant circulation of indoor unit, and still further aspect also reduces multi-line system high side pressure, improves multi-joint
Machine system low-voltage lateral pressure, enhances the reliability of compressor, effectively avoids changing because of compressor fan-out capability much higher than each interior
The demand of hot device and cause under entire multi-line system frequent start-stop, refrigeration mode indoor unit that cannot continue refrigeration, heating mode
Lower indoor unit cannot continue the phenomenon that heating problem.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is flow chart one of the invention.
Fig. 3 is flowchart 2 of the invention.
Wherein, 1- compressor, 2- outdoor heat exchanger, 3- unload solenoid valve, 4- indoor heat exchanger, 6- electric expansion valve, 7-
Outlet temperature sensor, 8- middle portion temperature sensor, 9- indoor temperature transmitter.
Specific embodiment
The present invention is further explained in the light of specific embodiments:
Referring to shown in attached drawing 1 to attached drawing 3, the present embodiment is a kind of huge discharge connected machine system, including outdoor unit and multiple
Indoor unit, each indoor unit include indoor heat exchanger 4 and electric expansion valve 6, and outdoor unit includes outdoor heat exchanger 2, compressor 1
(compressor 1 is frequency-changeable compressor), unloading solenoid valve 3 and four-way valve, wherein compressor 1 goes out between gas side and return side
It is provided with a unloading branch, unloading solenoid valve 3 is arranged in series in unloading branch road, and the unlatching by unloading solenoid valve 3 may make
Unload branch conducting connection compressor 1 goes out gas side and return side；It further include having controller and multiple sensors, wherein multiple
Sensor includes the outlet temperature sensor 7 set on each 4 exit of indoor heat exchanger, is set in the middle part of each interior sensor
Middle portion temperature sensor 8 at position and set on each interior sensor room temperature in corresponding indoor environment pass
Sensor 9, controller are electrically connected simultaneously with each sensor, each electric expansion valve 6 and unloading solenoid valve 3 to carry out data
Interaction, by the opening and closing information of each electric expansion valve 6 of acquisition, the collected parameter information of each sensor institute to be integrated
Analysis and judgement after to unloading solenoid valve 3 aperture accordingly controlled, thus work as demand of each indoor heat exchanger 4 to refrigerant compared with
When low, unlatching unloading solenoid valve 3 makes to unload branch conducting, so that partially from the refrigerant that gas side comes out out of compressor 1 by unloading
It carries branch and is directly back to the return side of compressor 1, and when demand of each indoor heat exchanger 4 to refrigerant is lower, then control unloading
The aperture of solenoid valve 3 is bigger, and the refrigerant that gas side comes out out from compressor 1 is more offloaded to the return side of compressor 1,
On the one hand the refrigerant circulation of indoor unit is reduced, still further aspect also reduces multi-line system high side pressure, improves
Multi-line system low-pressure lateral pressure, enhances the reliability of compressor 1, effectively avoids because 1 fan-out capability of compressor is much higher than each
The demand of indoor heat exchanger 4 and cause under entire multi-line system frequent start-stop, refrigeration mode indoor unit that cannot continue refrigeration, system
Indoor unit cannot continue the phenomenon that heating problem under heat pattern.
The load out control control method of huge discharge connected machine system is as follows:
If multi-line system enters refrigeration mode, controller is judged each by the opening and closing information of each electric expansion valve 6 of detection
The start and stop state of indoor heat exchanger 4:
If detect the indoor heat exchanger 4 that has turned on be it is multiple, obtain the outlet temperature of indoor heat exchanger 4 in the open state
Degree parameter simultaneously calculates outlet temperature average value, and the aperture of unloading solenoid valve 3 is determined according to outlet temperature average value, is specially worked as
Outlet temperature average value be greater than or equal to the first maximum preset temperature value when, it is determined that unloading solenoid valve 3 aperture be it is fully closed, when
When outlet temperature average value is less than or equal to the first minimum preset temperature value, it is determined that the aperture of unloading solenoid valve 3 is standard-sized sheet, when
Outlet temperature average value goes out less than the first maximum preset temperature value and when being greater than the first minimum preset temperature value according to presetting
The aperture negative correlativing relation of mouth temperature averages and unloading solenoid valve 3 determines the aperture of unloading solenoid valve 3, in the present embodiment,
The negative correlativing relation specifically: the first maximum preset temperature value is 8 DEG C, and the first minimum preset temperature value is 2 DEG C, works as outlet temperature
When average value is greater than or equal to 8 DEG C, determine that the aperture of unloading solenoid valve 3 is 0 degree (i.e. fully closed), when outlet temperature average value is 7
DEG C when, determine that the aperture of unloading solenoid valve 3 is 60 degree, when outlet temperature average value is 6 DEG C, determine that unloading solenoid valve 3 opens
Degree is 120 degree, when outlet temperature average value is 5 DEG C, determines that the aperture of unloading solenoid valve 3 is 180 degree, when outlet temperature is average
When value is 4 DEG C, determines that the aperture of unloading solenoid valve 3 is 240 degree, when outlet temperature average value is 3 DEG C, determine unloading solenoid valve
3 aperture is 300 degree, when outlet temperature average value is 2 DEG C, determines that the aperture of unloading solenoid valve 3 is 360 degree (i.e. standard-sized sheet)；
If detecting, indoor heat exchanger 4 in the open state is only one, obtains interior corresponding to the indoor heat exchanger 4
Environment temperature parameter, determined jointly according to the outlet temperature average value of the indoor heat exchanger 4 and indoor environment temperature parameter described in
Unload solenoid valve 3 aperture, specifically, by indoor environment temperature parameter subtract presetting indoor target temperature obtain cooling it is poor
Value, when cool down difference be greater than or equal to the first maximum temperature difference value when, it is determined that it is described unloading solenoid valve 3 aperture be it is fully closed, when
When the difference that cools down is less than or equal to the first minimum temperature difference value, it is determined that the aperture of unloading solenoid valve 3 is standard-sized sheet, when cooling difference is small
In the first maximum temperature difference value and when being greater than the first minimum temperature difference value, according to presetting cooling difference and unloading 3 aperture of solenoid valve
Negative correlativing relation determine it is described unloading solenoid valve 3 aperture；Solenoid valve 3 will be unloaded according to determined by outlet temperature average value
Aperture compared with the aperture for unloading solenoid valve 3 according to determined by indoor environment temperature parameter, choose maximum aperture and make
It is determined as unloading the final aperture of solenoid valve 3, in the present embodiment, the first maximum temperature difference value is 5 DEG C, the first minimum temperature difference value
It is -1 DEG C, when the difference that cools down is 5 DEG C, determines that the aperture of unloading solenoid valve 3 is 0 degree (i.e. fully closed), when cooling difference is 4 DEG C
When, it determines that the aperture of unloading solenoid valve 3 is 60 degree, when the difference that cools down is 3 DEG C, determines that the aperture of unloading solenoid valve 3 is 120
Degree determines that the aperture of unloading solenoid valve 3 is 180 degree, when the difference that cools down is 1 DEG C, determines unloading when the difference that cools down is 2 DEG C
The aperture of solenoid valve 3 is 240 degree, when the difference that cools down is 0 DEG C, determines that the aperture of unloading solenoid valve 3 is 300 degree, poor when cooling down
When value is -1 DEG C, determine that the aperture of unloading solenoid valve 3 is 360 degree (i.e. standard-sized sheet)；If then really by outlet temperature average value institute
The aperture of fixed unloading solenoid valve 3 is 240 degree, and the aperture of unloading solenoid valve 3 determined by indoor environment temperature parameter is 300
Degree, it is determined that the final aperture of unloading solenoid valve 3 is 300 degree.
If multi-line system enters heating mode, controller is judged by detecting the opening and closing information of each electric expansion valve 6
The start and stop state of each indoor heat exchanger 4:
If detect the indoor heat exchanger 4 that has turned on be it is multiple, obtain the middle part temperature of indoor heat exchanger 4 in the open state
Degree parameter simultaneously calculates middle portion temperature average value, and the aperture of unloading solenoid valve 3 is determined according to middle portion temperature average value, is specially worked as
When middle portion temperature average value is greater than or equal to the second maximum preset temperature value, it is determined that the aperture of unloading solenoid valve 3 is standard-sized sheet, when
When middle portion temperature average value is less than or equal to the second minimum preset temperature value, it is determined that the aperture of unloading solenoid valve 3 be it is fully closed, when
Middle portion temperature average value is less than the second maximum preset temperature value and when being greater than the second minimum preset temperature value, in presetting
The aperture positive correlation of portion's temperature averages and unloading solenoid valve 3 determines the aperture of unloading solenoid valve 3, in the present embodiment,
The positive correlation specifically: the second maximum preset temperature value is 55 DEG C, and the second minimum preset temperature value is 44 DEG C, when middle part temperature
When spending average value more than or equal to 55 DEG C, determine that the aperture of unloading solenoid valve 3 is 360 degree (i.e. standard-sized sheet), when middle part temperature-averaging
When value is 53 DEG C, determines that the aperture of unloading solenoid valve 3 is 300 degree, when middle part temperature averages are 51 DEG C, determine unloading electromagnetism
The aperture of valve 3 is 240 degree, when middle part temperature averages are 49 DEG C, determine that the aperture of unloading solenoid valve 3 is 180 degree, works as middle part
When temperature averages are 47 DEG C, determine that the aperture of unloading solenoid valve 3 is 120 degree, when middle part temperature averages are 45 DEG C, determine
The aperture for unloading solenoid valve 3 is 60 degree, when middle part temperature averages are 44 DEG C, determines that the aperture of unloading solenoid valve 3 is 0 degree
(i.e. fully closed)；
If detecting, indoor heat exchanger 4 in the open state is only one, obtains interior corresponding to the indoor heat exchanger 4
Environment temperature parameter, determined jointly according to the middle portion temperature average value of the indoor heat exchanger 4 and indoor environment temperature parameter described in
Unload solenoid valve 3 aperture, specifically, by presetting indoor target temperature subtract indoor environment temperature parameter obtain heating it is poor
Value, when heat up difference be greater than or equal to the second maximum temperature difference value when, it is determined that it is described unloading solenoid valve 3 aperture be it is fully closed, when
When the difference that heats up is less than or equal to the second minimum temperature difference value, it is determined that the aperture of unloading solenoid valve 3 is standard-sized sheet, when heating difference is small
In the second maximum temperature difference value and when being greater than the second minimum temperature difference value, according to presetting heating difference and unloading 3 aperture of solenoid valve
Negative correlativing relation determine it is described unloading solenoid valve 3 aperture；Solenoid valve 3 will be unloaded according to determined by middle portion temperature average value
Aperture compared with the aperture for unloading solenoid valve 3 according to determined by indoor environment temperature parameter, choose maximum aperture and make
It is determined as unloading the final aperture of solenoid valve 3, in the present embodiment, the second maximum temperature difference value is 5 DEG C, the second minimum temperature difference value
It is -1 DEG C, when the difference that heats up is 5 DEG C, determines that the aperture of unloading solenoid valve 3 is 0 degree (i.e. fully closed), when heating difference is 4 DEG C
When, it determines that the aperture of unloading solenoid valve 3 is 60 degree, when the difference that heats up is 3 DEG C, determines that the aperture of unloading solenoid valve 3 is 120
Degree determines that the aperture of unloading solenoid valve 3 is 180 degree, when the difference that heats up is 1 DEG C, determines unloading when the difference that heats up is 2 DEG C
The aperture of solenoid valve 3 is 240 degree, when the difference that heats up is 0 DEG C, determines that the aperture of unloading solenoid valve 3 is 300 degree, poor when heating up
When value is -1 DEG C, determine that the aperture of unloading solenoid valve 3 is 360 degree (i.e. standard-sized sheet)；If then really by middle portion temperature average value institute
The aperture of fixed unloading solenoid valve 3 is 180 degree, and the aperture of unloading solenoid valve 3 determined by indoor environment temperature parameter is 120
Degree, it is determined that the final aperture of unloading solenoid valve 3 is 180 degree.
In addition, it should be noted that, the specific embodiments described in this specification, each section title etc. can not
Together, the equivalent or simple change that all structure, feature and principles described according to the invention patent design are done, is included in the present invention
In the protection scope of patent.Those skilled in the art can do described specific embodiment various each
The mode that the modify or supplement or adopt of sample is similar substitutes, and without departing from structure of the invention or surmounts the claims
Defined range, is within the scope of protection of the invention.
Claims (10)
1. a kind of load out control control method of huge discharge connected machine system, it is characterised in that: the multi-line system packet
Outdoor unit and multiple indoor units are included, each indoor unit includes indoor heat exchanger (4) and electric expansion valve (6), the outdoor
Machine includes outdoor heat exchanger (2), compressor (1) and unloading solenoid valve (3), and the unloading solenoid valve (3) is described for being connected to
Compressor (1) goes out gas side and return side；The control method includes: that the multi-line system enters operating mode, and detection is simultaneously
Judge the start and stop state of each indoor heat exchanger (4)；If operating mode is refrigeration mode, interior in the open state is obtained
The outlet temperature parameter of heat exchanger (4) simultaneously calculates outlet temperature average value, according to outlet temperature average value determination
Unload the aperture of solenoid valve (3)；If operating mode is heating mode, indoor heat exchanger in the open state (4) is obtained
Middle portion temperature parameter simultaneously calculates middle portion temperature average value, determines the unloading solenoid valve according to the middle portion temperature average value
(3) aperture.
2. a kind of load out control control method of huge discharge connected machine system according to claim 1, feature exist
In: if the operating mode is refrigeration mode, obtain the outlet temperature parameter of indoor heat exchanger in the open state (4) simultaneously
Outlet temperature average value is calculated, determines that the aperture of unloading solenoid valve (3) includes: institute according to the outlet temperature average value
It states and determines that the aperture of unloading solenoid valve (3) includes: when the outlet temperature average value according to the outlet temperature average value
When more than or equal to the first maximum preset temperature value, it is determined that it is described unloading solenoid valve (3) aperture be it is fully closed, when the outlet
When temperature averages are less than or equal to the first minimum preset temperature value, it is determined that the aperture of unloading solenoid valve (3) is standard-sized sheet,
When the outlet temperature average value is less than the first maximum preset temperature value and is greater than the first minimum preset temperature value, according to default
The aperture negative correlativing relation of fixed outlet temperature average value and unloading solenoid valve (3) determines the aperture of unloading solenoid valve (3).
3. a kind of load out control control method of huge discharge connected machine system according to claim 2, feature exist
In: the first maximum preset temperature value is 8 DEG C, and the described first minimum preset temperature value is 2 DEG C.
4. a kind of load out control control method of huge discharge connected machine system according to claim 1, feature exist
In: if the operating mode is heating mode, obtain the middle portion temperature parameter of indoor heat exchanger in the open state (4) simultaneously
Middle portion temperature average value is calculated, determines that the aperture of unloading solenoid valve (3) includes: to work as according to the middle portion temperature average value
When the middle portion temperature average value is greater than or equal to the second maximum preset temperature value, it is determined that unloading solenoid valve (3) is opened
Degree is standard-sized sheet, when the middle portion temperature average value is less than or equal to the second minimum preset temperature value, it is determined that the unloading electricity
The aperture of magnet valve (3) be it is fully closed, when the middle portion temperature average value is less than the second maximum preset temperature value and to be greater than second minimum
When preset temperature value, institute is determined according to the aperture positive correlation of presetting middle portion temperature average value and unloading solenoid valve (3)
State the aperture of unloading solenoid valve (3).
5. a kind of load out control control method of huge discharge connected machine system according to claim 4, feature exist
In: the second maximum preset temperature value is 55 DEG C, and the described second minimum preset temperature value is 44 DEG C.
6. a kind of load out control control method of huge discharge connected machine system according to claim 1, feature exist
In: the control method further include: indoor heat exchanger (4) if it is in the open state is only one, then obtains the interior heat exchange
Indoor environment temperature parameter corresponding to device (4), when operating mode is refrigeration mode, according to the outlet of the indoor heat exchanger (4)
Temperature averages and indoor environment temperature parameter determine the aperture of unloading solenoid valve (3) jointly；When operating mode is heating
Mode determines the unloading electricity according to the middle portion temperature average value of the indoor heat exchanger (4) and indoor environment temperature parameter jointly
The aperture of magnet valve (3).
7. a kind of load out control control method of huge discharge connected machine system according to claim 6, feature exist
In: it is described when operating mode is refrigeration mode, according to the outlet temperature average value and indoor environment temperature of the indoor heat exchanger (4)
Parameter determines that the aperture of unloading solenoid valve (3) includes: that indoor environment temperature parameter is subtracted to presetting indoor mesh jointly
Mark temperature obtains cooling difference, when the cooling difference is greater than or equal to the first maximum temperature difference value, it is determined that the unloading electricity
The aperture of magnet valve (3) be it is fully closed, when the cooling difference is less than or equal to the first minimum temperature difference value, it is determined that the unloading is electric
The aperture of magnet valve (3) is standard-sized sheet, when the cooling difference is less than the first maximum temperature difference value and is greater than the first minimum temperature difference value, root
The aperture of unloading solenoid valve (3) is determined according to the negative correlativing relation of presetting cooling difference and unloading solenoid valve (3) aperture；
The aperture of solenoid valve (3) will be unloaded according to determined by outlet temperature average value and according to determined by indoor environment temperature parameter
The aperture of unloading solenoid valve (3) compares, and chooses maximum aperture and makees the final aperture for being determined as unloading solenoid valve (3).
8. a kind of load out control control method of huge discharge connected machine system according to claim 7, feature exist
In: the first maximum temperature difference value is 5 DEG C, and the first minimum temperature difference value is -1 DEG C.
9. a kind of load out control control method of huge discharge connected machine system according to claim 6, feature exist
In: when operating mode is heating mode, according to the middle portion temperature average value and indoor environment temperature parameter of the indoor heat exchanger (4)
The aperture for determining unloading solenoid valve (3) jointly includes: that presetting indoor target temperature is subtracted indoor environment temperature ginseng
Number obtains heating difference, when the heating difference is greater than or equal to the second maximum temperature difference value, it is determined that the unloading solenoid valve
(3) aperture be it is fully closed, when the heating difference is less than or equal to the second minimum temperature difference value, it is determined that the unloading solenoid valve
(3) aperture is standard-sized sheet, when the heating difference is less than the second maximum temperature difference value and is greater than the second minimum temperature difference value, according to pre-
The heating difference of setting and the negative correlativing relation of unloading solenoid valve (3) aperture determine the aperture of unloading solenoid valve (3)；By root
It is unloaded according to the aperture for unloading solenoid valve (3) determined by middle portion temperature average value with according to determined by indoor environment temperature parameter
The aperture of solenoid valve (3) compares, and chooses maximum aperture and makees the final aperture for being determined as unloading solenoid valve (3).
10. a kind of load out control control method of huge discharge connected machine system according to claim 9, feature exist
In: the second maximum temperature difference value is 5 DEG C, and the second minimum temperature difference value is -1 DEG C.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110671777A (en) * | 2019-10-21 | 2020-01-10 | 宁波奥克斯电气股份有限公司 | Control method and device of air conditioner and air conditioner |
| CN111878980A (en) * | 2020-07-31 | 2020-11-03 | 广东美的暖通设备有限公司 | Air conditioner, control method of air conditioner, and computer-readable storage medium |
| CN111878962A (en) * | 2020-06-28 | 2020-11-03 | 青岛海尔空调电子有限公司 | Control method of air conditioning system |
| CN113531856A (en) * | 2020-04-22 | 2021-10-22 | 青岛海尔空调电子有限公司 | Multi-connected air conditioning system and refrigerant flow control method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2460899Y (en) * | 2001-01-10 | 2001-11-21 | 广东科龙电器股份有限公司 | One-with-multiple heat pump equipment with variable refrigerating output and heating output |
| CN101158495A (en) * | 2007-08-15 | 2008-04-09 | 阿尔西制冷工程技术（北京）有限公司 | Refrigeration system capable of controlling refrigerating capacity |
| CN101871707A (en) * | 2010-06-29 | 2010-10-27 | 广东志高空调有限公司 | Oil return system of low-pressure cavity compressor air conditioner |
| CN104748427A (en) * | 2015-03-31 | 2015-07-01 | 广东美的暖通设备有限公司 | Unloading component for multi-split system and multi-split system with same |
| CN107490115A (en) * | 2017-08-29 | 2017-12-19 | 广东美的制冷设备有限公司 | Air-conditioning system, multi-split air conditioner and its control method and storage medium |
| US20180224175A1 (en) * | 2017-02-07 | 2018-08-09 | Lennox Industries Inc. | Liquid transfer pump cycle |
-
2019
- 2019-06-28 CN CN201910578064.2A patent/CN110319541B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2460899Y (en) * | 2001-01-10 | 2001-11-21 | 广东科龙电器股份有限公司 | One-with-multiple heat pump equipment with variable refrigerating output and heating output |
| CN101158495A (en) * | 2007-08-15 | 2008-04-09 | 阿尔西制冷工程技术（北京）有限公司 | Refrigeration system capable of controlling refrigerating capacity |
| CN101871707A (en) * | 2010-06-29 | 2010-10-27 | 广东志高空调有限公司 | Oil return system of low-pressure cavity compressor air conditioner |
| CN104748427A (en) * | 2015-03-31 | 2015-07-01 | 广东美的暖通设备有限公司 | Unloading component for multi-split system and multi-split system with same |
| US20180224175A1 (en) * | 2017-02-07 | 2018-08-09 | Lennox Industries Inc. | Liquid transfer pump cycle |
| CN107490115A (en) * | 2017-08-29 | 2017-12-19 | 广东美的制冷设备有限公司 | Air-conditioning system, multi-split air conditioner and its control method and storage medium |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110671777A (en) * | 2019-10-21 | 2020-01-10 | 宁波奥克斯电气股份有限公司 | Control method and device of air conditioner and air conditioner |
| CN110671777B (en) * | 2019-10-21 | 2021-07-20 | 宁波奥克斯电气股份有限公司 | Control method and device of air conditioner and air conditioner |
| CN113531856A (en) * | 2020-04-22 | 2021-10-22 | 青岛海尔空调电子有限公司 | Multi-connected air conditioning system and refrigerant flow control method thereof |
| CN111878962A (en) * | 2020-06-28 | 2020-11-03 | 青岛海尔空调电子有限公司 | Control method of air conditioning system |
| CN111878980A (en) * | 2020-07-31 | 2020-11-03 | 广东美的暖通设备有限公司 | Air conditioner, control method of air conditioner, and computer-readable storage medium |
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Address after: No. 1 by villagers' group of helongsha, Shengli village, Lishui Town, Nanhai District, Foshan City, Guangdong Province Patentee after: Guangdong Kaili HVAC Co.,Ltd. Address before: No. 1 by villagers' group of helongsha, Shengli village, Lishui Town, Nanhai District, Foshan City, Guangdong Province Patentee before: GUANGDONG CHIGO HEATING AND VENTILATION EQUIPMENT Co.,Ltd. |
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