CN105757891A - Multi-unit system and control method of heating indoor unit thereof - Google Patents
Multi-unit system and control method of heating indoor unit thereof Download PDFInfo
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- CN105757891A CN105757891A CN201610146148.5A CN201610146148A CN105757891A CN 105757891 A CN105757891 A CN 105757891A CN 201610146148 A CN201610146148 A CN 201610146148A CN 105757891 A CN105757891 A CN 105757891A
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- indoor set
- restricting element
- aperture
- target
- control valve
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- 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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
-
- 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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/247—Active noise-suppression
Abstract
The invention discloses a multi-unit system and a control method of a heating indoor unit thereof. The method comprises the following steps: a shunt device obtains the target opening and the target duration of a throttling element in an indoor unit according to a preset opening and duration table if the indoor unit which is not started or at a refrigeration mode receives heating mode commands when the multi-unit system is at a pure refrigeration mode or a main refrigeration mode, controls the throttling element in the indoor unit to be opened to the target opening to adjust the pressure in front and rear of the throttling element, and adjusts the opening of the throttling element to the maximum opening when the target opening is operated for the target duration; a refrigeration control valve corresponding to the indoor unit is controlled to be closed after time is delayed by a first preset time; a corresponding heating control valve is controlled to be opened after time is delayed by a second preset time. The method avoids scouring noise produced when refrigerant flows rapidly and the influence on the refrigeration capacity of other indoor units by performing pressure equalizing on the indoor unit receiving the heating mode commands.
Description
Technical field
The present invention relates to air-conditioning technical field, particularly to a kind of multiple on-line system heats the control method of indoor set with
And one multiple on-line system.
Background technology
In multiple on-line system, can be by the some control valves in part flow arrangement by the coolant reasonable distribution in off-premises station
To heating in indoor set or refrigeration indoor set accordingly, to realize heating and freezing simultaneously.
When multiple on-line system is in pure refrigeration mode or main refrigeration mode, receive heating mode instruction at indoor set
Time, in correlation technique, immediately the aperture of restricting element in this indoor set is regulated to maximum opening, after time delay a period of time, control
Make refrigeration control valve corresponding to this indoor set to close, and control the control valve that heats corresponding to this indoor set and open.But in system
In a period of time before subcooling control valve closedown, owing to the aperture of the restricting element of this indoor set regulates to maximum opening, thus meeting
Make a large amount of coolant be poured in down a chimney (i.e. flowing along refrigeration circuit) by liquid tube side and enter indoor set, then flow out to low by refrigeration control valve
Pressure pipe, liquid Guan Zhonghui produces bigger coolant and washes away sound, has a strong impact on the noise qualities of product, simultaneously as a large amount of coolant leads to
Cross refrigeration control valve and flow out to low-voltage tube, thus other refrigeration indoor sets can be affected in the refrigerating capacity of this period, affect product
Comfortableness.
Summary of the invention
It is contemplated that one of technical problem solved the most to a certain extent in correlation technique.To this end, the present invention
One purpose is the control method proposing to heat indoor set in a kind of multiple on-line system, and the method is by heating mould to receiving
The indoor set of formula instruction is all pressed, to avoid the sound that washes away that coolant rapid flow produces, and to other indoor sets refrigeration energy
The impact of power.
Further object is that a kind of multiple on-line system of proposition.
For achieving the above object, one aspect of the present invention embodiment heats the control of indoor set in proposing a kind of multiple on-line system
Method processed, described multiple on-line system includes off-premises station, multiple indoor set and part flow arrangement, each room in the plurality of indoor set
Interior machine all includes that restricting element, described part flow arrangement include corresponding with each indoor set in the plurality of indoor set heating control
Valve processed and refrigeration control valve, said method comprising the steps of: when described multiple on-line system is in pure refrigeration mode or main system
During chill formula, if the indoor set being not keyed up or be in the indoor set of refrigeration mode and receive heating mode instruction, then this room
The instruction of described heating mode is sent to described part flow arrangement by interior machine；Described part flow arrangement is according to the aperture-persistent period preset
Table obtains target aperture and the target time duration of restricting element in this indoor set, and controls restricting element unlatching in this indoor set
To described target aperture to regulate in this indoor set pressure before and after restricting element；When in this indoor set restricting element with described mesh
When mark aperture runs described target time duration, described part flow arrangement is by the most maximum for the aperture regulation of restricting element in this indoor set
Aperture, and after time delay the first Preset Time, control refrigeration control valve corresponding to this indoor set and close, and pre-in time delay second
If after the time, the control valve that heats controlling this indoor set corresponding is opened.
Multiple on-line system according to embodiments of the present invention heats the control method of indoor set, when multiple on-line system is in pure
When refrigeration mode or main refrigeration mode, if the indoor set being not keyed up or be in the indoor set of refrigeration mode and receive and heat
Mode instruction, then heating mode instruction is sent to part flow arrangement by this indoor set.Part flow arrangement according to preset aperture-continue time
Between table obtain target aperture and the target time duration of restricting element in this indoor set, and control restricting element in this indoor set and open
Open to target aperture to regulate in this indoor set pressure before and after restricting element, when in this indoor set restricting element with target aperture
During the operational objective persistent period, the aperture of restricting element in this indoor set is regulated to maximum opening by part flow arrangement, and in time delay
After first Preset Time, control refrigeration control valve corresponding to this indoor set and close, and after time delay the second Preset Time, control
Control valve that what this indoor set was corresponding heat is opened, thus is prevented effectively from because in indoor set, the aperture of restricting element regulates suddenly to
What the coolant rapid flow that big aperture causes produced washes away sound, thus improves products noise quality, can reduce by system simultaneously
Subcooling control valve flows out to the coolant quantity of low-voltage tube, substantially reduces the impact of mechanism cold ability in other cool rooms.
According to one embodiment of present invention, described default aperture-persistent period table throttles according in each indoor set
The flow curve of element obtains.
According to one embodiment of present invention, described default aperture-persistent period table is:
Wherein, EEV1, EEV2 ..., EEVm are followed successively by first to the restricting element in m indoor set, Ps1, Ps2 ...,
Psm is followed successively by first to the target aperture of restricting element in m indoor set, and Ts is first to restricting element in m indoor set
Target time duration, m is positive integer.
According to one embodiment of present invention, described default aperture-persistent period table is:
Wherein, EEV1, EEV2 ..., EEVm are followed successively by first to the restricting element in m indoor set, Ts1, Ts2 ...,
Tsn is first to the target time duration of restricting element in m indoor set, when described target time duration is Ts1, first to
In m indoor set, the target aperture of restricting element is followed successively by Ps11, Ps12 ..., Ps1m, when described target time duration is Ts2
Time, in first to m indoor set, the target aperture of restricting element is followed successively by Ps21, Ps22 ..., Ps2m ..., when described target is held
When the continuous time is Tsn, in first to m indoor set, the target aperture of restricting element is followed successively by Psn1, Psn2 ..., Psnm, m and n
It is positive integer.
According to one embodiment of present invention, it is in described pure refrigeration mode or described main system when described multiple on-line system
During chill formula, described in the indoor set that is not keyed up or the refrigeration control valve corresponding to indoor set that is in refrigeration mode be in unlatching
State, described in the indoor set that is not keyed up or the control valve that heats corresponding to indoor set that is in refrigeration mode be in closedown shape
State.
For achieving the above object, another aspect of the present invention embodiment proposes a kind of multiple on-line system, including: off-premises station；
Multiple indoor sets, each indoor set in the plurality of indoor set all includes restricting element；Part flow arrangement, described part flow arrangement bag
Include and corresponding with each indoor set in the plurality of indoor set heat control valve and refrigeration control valve, wherein, when described multi-joint
When machine system is in pure refrigeration mode or main refrigeration mode, if the indoor set being not keyed up or be in the indoor of refrigeration mode
Machine receives heating mode instruction, then the instruction of described heating mode is sent to described part flow arrangement by this indoor set；Described shunting
Device also includes: control module, and described control module saves for obtaining in this indoor set according to the aperture-persistent period table preset
The target aperture of fluid element and target time duration, and control in this indoor set the aperture of restricting element to described target aperture with
Regulate in this indoor set pressure before and after restricting element, and when in this indoor set restricting element run institute with described target aperture
When stating target time duration, the aperture of restricting element in this indoor set is regulated to maximum opening, and when time delay first is preset
After between, control refrigeration control valve corresponding to this indoor set and close, and after time delay the second Preset Time, control this indoor set pair
The control valve that heats answered is opened.
Multiple on-line system according to embodiments of the present invention, when multiple on-line system is in pure refrigeration mode or main refrigeration mode
Time, if the indoor set being not keyed up or be in the indoor set of refrigeration mode and receive heating mode instruction, then this indoor set will
Heating mode instruction is sent to part flow arrangement.Control module in part flow arrangement obtains according to the aperture preset-persistent period table
The target aperture of restricting element and target time duration in this indoor set, and control in this indoor set the aperture of restricting element to mesh
Mark aperture to regulate in this indoor set pressure before and after restricting element, and when in this indoor set restricting element transport with target aperture
During row target time duration, the aperture of restricting element in this indoor set is regulated to maximum opening, and when time delay first is preset
After between, control refrigeration control valve corresponding to this indoor set and close, and after time delay the second Preset Time, control this indoor set pair
The control valve that heats answered is opened, thus is prevented effectively from because in indoor set, the aperture of restricting element regulates suddenly to maximum opening and causes
Coolant rapid flow produce wash away sound, thus improve products noise quality, can reduce by refrigeration control valve stream simultaneously
Go out the coolant quantity to low-voltage tube, substantially reduce the impact of mechanism cold ability in other cool rooms.
According to one embodiment of present invention, described default aperture-persistent period table throttles according in each indoor set
The flow curve of element obtains.
According to one embodiment of present invention, described default aperture-persistent period table is:
Wherein, EEV1, EEV2 ..., EEVm are followed successively by first to the restricting element in m indoor set, Ps1, Ps2 ...,
Psm is followed successively by first to the target aperture of restricting element in m indoor set, and Ts is first to restricting element in m indoor set
Target time duration, m is positive integer.
According to one embodiment of present invention, described default aperture-persistent period table is:
Wherein, EEV1, EEV2 ..., EEVm are followed successively by first to the restricting element in m indoor set, Ts1, Ts2 ...,
Tsn is first to the target time duration of restricting element in m indoor set, when described target time duration is Ts1, first to
In m indoor set, the target aperture of restricting element is followed successively by Ps11, Ps12 ..., Ps1m, when described target time duration is Ts2
Time, in first to m indoor set, the target aperture of restricting element is followed successively by Ps21, Ps22 ..., Ps2m ..., when described target is held
When the continuous time is Tsn, in first to m indoor set, the target aperture of restricting element is followed successively by Psn1, Psn2 ..., Psnm, m and n
It is positive integer.
According to one embodiment of present invention, it is in described pure refrigeration mode or described main system when described multiple on-line system
During chill formula, described in the indoor set that is not keyed up or the refrigeration control valve corresponding to indoor set that is in refrigeration mode be in unlatching
State, described in the indoor set that is not keyed up or the control valve that heats corresponding to indoor set that is in refrigeration mode be in closedown shape
State.
Accompanying drawing explanation
Fig. 1 is the flow chart of the control method heating indoor set in multiple on-line system according to embodiments of the present invention.
Fig. 2 is the structural representation of multiple on-line system according to an embodiment of the invention.
Fig. 3 is the flow chart of the control method heating indoor set according to an embodiment of the invention in multiple on-line system.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, the most from start to finish
Same or similar label represents same or similar element or has the element of same or like function.Below with reference to attached
The embodiment that figure describes is exemplary, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
The control heating indoor set in the multiple on-line system proposed according to embodiments of the present invention is described with reference to the accompanying drawings
Method and multiple on-line system.
Fig. 1 is the flow chart of the control method heating indoor set in multiple on-line system according to embodiments of the present invention.
In an embodiment of the present invention, multiple on-line system can include off-premises station, multiple indoor set and part flow arrangement, multiple
Each indoor set in indoor set all includes restricting element, and part flow arrangement includes corresponding with each indoor set in multiple indoor sets
Heat control valve and refrigeration control valve.Restricting element can be electric expansion valve, heats control valve and refrigeration control valve is permissible
For electromagnetic valve.
Specifically, as in figure 2 it is shown, multiple indoor set can include the first indoor set, the second indoor set, the 3rd indoor set,
Machine in fourth ventricle.In multiple indoor sets, the restricting element of each indoor set is followed successively by EEV1, EEV2, EEV3, EEV4, and each
The indoor heat exchanger of indoor set is followed successively by indoor1, indoor2, indoor3, indoor4, and the first indoor set is corresponding
Refrigeration control valve is SV1 and heats control valve is SV1B, and the refrigeration control valve that the second indoor set is corresponding is SV2 and heats control valve
For SV2B, the refrigeration control valve that the 3rd indoor set is corresponding is SV3 and heats control valve is SV3B, the refrigeration that in fourth ventricle, machine is corresponding
Control valve is SV4 and heats control valve is SV4B.
As it is shown in figure 1, the control method heating indoor set in this multiple on-line system comprises the following steps:
S1, when multiple on-line system is in pure refrigeration mode or main refrigeration mode, if the indoor set being not keyed up or
The indoor set being in refrigeration mode receives heating mode instruction, then heating mode instruction is sent to shunting dress by this indoor set
Put.
In an embodiment of the present invention, when multiple on-line system is in pure refrigeration mode or main refrigeration mode, it is not keyed up
Indoor set or be in the refrigeration control valve corresponding to indoor set of refrigeration mode and be in opening, the indoor set being not keyed up
Or it is in the control valve that heats corresponding to the indoor set of refrigeration mode to be closed.
S2, part flow arrangement obtains the target aperture of restricting element in this indoor set according to the aperture-persistent period table preset
And target time duration, and control restricting element in this indoor set and be opened into target aperture to regulate restricting element in this indoor set
Before and after pressure.
According to one embodiment of present invention, the aperture-persistent period table preset is according to restricting element in each indoor set
Flow curve obtain.
Specifically, at the indoor set being not keyed up or be in the indoor set of refrigeration mode and receive heating mode instruction
Time, if control that the aperture of restricting element in this indoor set is little and the persistent period in short-term, then in this indoor set before restricting element
Rear pressure there will be all press insufficient, when in this indoor set restricting element aperture regulation to maximum opening time, still can produce relatively
Big coolant washes away sound；And if it is very big to control the aperture of restricting element in this indoor set, the most all pressing effect, coolant washed away
Sound is without any improvement.It addition, the ability of each indoor set is different, the bore of the restricting element used or structure are also different
, therefore considering can be according to the bore of the difference section merogenesis fluid element of flow curve or architectural difference.Due to each indoor
In machine, the flow curve of restricting element is different, and target aperture and the target time duration of corresponding restricting element are the most different, to this end,
Aperture-persistent period the table of the restricting element of different flow curve is obtained, as shown in table 1 by experiment:
Table 1
Wherein, EEV1, EEV2 ..., EEVm are followed successively by first to the restricting element in m indoor set, Ps1, Ps2 ...,
Psm is followed successively by first to the target aperture of restricting element in m indoor set, and Ts is first to restricting element in m indoor set
Target time duration, m is positive integer.
In Table 1, in each indoor set, the target time duration of restricting element is definite value, according to this target time duration,
The target aperture of each restricting element is obtained by great many of experiments.It is understood that target time duration can also be different,
And the corresponding different target aperture of different target time duration, aperture the most as shown in table 2-persistent period table.
Table 2
Wherein, EEV1, EEV2 ..., EEVm are followed successively by first to the restricting element in m indoor set, Ts1, Ts2 ...,
Tsn is first to the target time duration of restricting element in m indoor set, when target time duration is Ts1, first to m
In indoor set, the target aperture of restricting element is followed successively by Ps11, Ps12 ..., Ps1m, when target time duration is Ts2, and first
To m indoor set, the target aperture of restricting element is followed successively by Ps21, Ps22 ..., Ps2m ..., when target time duration is Tsn
Time, in first to m indoor set, the target aperture of restricting element is followed successively by Psn1, Psn2 ..., Psnm, m and n is positive integer.
When the indoor set being not keyed up or be in the indoor set of refrigeration mode receive heating mode instruction time, by presetting
Aperture-persistent period table the aperture of restricting element in this indoor set is controlled, there is higher practicality and effectiveness.
S3, when in this indoor set, restricting element is with the target aperture operational objective persistent period, part flow arrangement is by these indoor
In machine, the aperture of restricting element regulates to maximum opening, and after time delay the first Preset Time, controls the system that this indoor set is corresponding
Subcooling control valve is closed, and after time delay the second Preset Time, the control valve that heats controlling this indoor set corresponding is opened.Wherein,
First Preset Time and the second Preset Time can be demarcated according to practical situation.
Specifically, as it is shown on figure 3, when multiple on-line system is in pure refrigeration mode or main refrigeration mode (step
S101), if the indoor set being not keyed up or be in the indoor set of refrigeration mode and receive heating mode instruction (step S102),
Then heating mode instruction is sent to part flow arrangement by this indoor set.Part flow arrangement selects according to the aperture preset-persistent period table
Corresponding target aperture and target time duration are all pressed, and after all pressures, the aperture of the restricting element of this indoor set are adjusted
Save to maximum opening (step S103-S104), thus avoid reaching suddenly because of restricting element coolant that maximum opening causes rapidly
What flowing caused washes away sound, effectively improves products noise quality, simultaneously because be always maintained at less target aperture, thus has
Effect reduces the coolant quantity being flowed out to low-voltage tube by refrigeration control valve, substantially reduces the shadow to other indoor set refrigerating capacities
Ring, improve product comfort.Then, the aperture of the restricting element of this indoor set is regulated the to maximum opening by part flow arrangement
After one Preset Time, control refrigeration control valve corresponding to this indoor set and close (step S105), and at time delay the second Preset Time
After, the control valve that heats controlling this indoor set corresponding opens (step S106), and controls restricting element according to presetting
System (step S107), makes this indoor set heat according to user's request.
Further, as illustrated in fig. 2, it is assumed that multiple on-line system is at pure refrigeration mode, and the first to the 3rd indoor set
In refrigeration mode, its refrigeration circuit is as represented by the arrows in the dashed line in figure 2.When in fourth ventricle mechanism heat start time, part flow arrangement according to
Table 1 selects in fourth ventricle that in machine, the target aperture of restricting element is Ps4 and target time duration is Ts, then by machine in fourth ventricle
The aperture regulation of middle restricting element to target aperture Ps4 and keep target time duration Ts all to press, then by fourth ventricle
In machine, the aperture regulation of restricting element is to maximum opening, and the refrigeration control valve time delay first controlling machine in fourth ventricle corresponding is preset
Time T1 closes, and heats control valve time delay the second preset time T 1+T2 and opens, heats stream as shown in solid arrow in Fig. 2.By
In before controlling the refrigeration control valve that in fourth ventricle, machine is corresponding and closing, restricting element in machine in fourth ventricle is carried out the most voltage-controlled
System, thus effectively prevent a large amount of coolant along refrigeration circuit in fourth ventricle in machine restricting element fall rapidly to indoor heat exchanger
Fill, it is to avoid what in liquid pipe, coolant rapid flow caused washes away sound, simultaneously by Pressure and Control, substantially reduce machine in fourth ventricle
In the first Preset Time before refrigeration control valve cuts out, through the coolant quantity that refrigeration control valve flows out to low-pressure side, thus reduce
In fourth ventricle, the start of mechanism heat is on the impact of mechanism cold ability in refrigeration.
Multiple on-line system according to embodiments of the present invention heats the control method of indoor set, when multiple on-line system is in pure
When refrigeration mode or main refrigeration mode, if the indoor set being not keyed up or be in the indoor set of refrigeration mode and receive and heat
Mode instruction, then heating mode instruction is sent to part flow arrangement by this indoor set.Part flow arrangement according to preset aperture-continue time
Between table obtain target aperture and the target time duration of restricting element in this indoor set, and control restricting element in this indoor set and open
Open to target aperture to regulate in this indoor set pressure before and after restricting element, when in this indoor set restricting element with target aperture
During the operational objective persistent period, the aperture of restricting element in this indoor set is regulated to maximum opening by part flow arrangement, and in time delay
After first Preset Time, control refrigeration control valve corresponding to this indoor set and close, and after time delay the second Preset Time, control
Control valve that what this indoor set was corresponding heat is opened, thus is prevented effectively from because in indoor set, the aperture of restricting element regulates suddenly to
What the coolant rapid flow that big aperture causes produced washes away sound, thus improves products noise quality, can reduce by system simultaneously
Subcooling control valve flows out to the coolant quantity of low-voltage tube, substantially reduces the impact of mechanism cold ability in other cool rooms.
Fig. 2 is the structural representation of multiple on-line system according to an embodiment of the invention.As in figure 2 it is shown, this multi-connected machine
System may include that off-premises station (not specifically illustrated in figure), multiple indoor set and part flow arrangement 10.
Wherein, each indoor set in multiple indoor sets all includes that restricting element, part flow arrangement 10 include and multiple indoor
What each indoor set in machine was corresponding heats control valve and refrigeration control valve.
Specifically, as in figure 2 it is shown, multiple indoor set can include the first indoor set, the second indoor set, the 3rd indoor set,
Machine (Fig. 2 provides four indoor sets and is merely illustrative) in fourth ventricle.In multiple indoor sets, the restricting element of each indoor set is successively
For EEV1, EEV2, EEV3, EEV4, and the indoor heat exchanger of each indoor set be followed successively by indoor1, indoor2,
Indoor3, indoor4, and refrigeration control valve corresponding to the first indoor set is SV1 and to heat control valve be SV1B, the second Room
The refrigeration control valve that interior machine is corresponding is SV2 and to heat control valve be SV2B, the refrigeration control valve that the 3rd indoor set is corresponding be SV3 and
Heating control valve is SV3B, and the refrigeration control valve that in fourth ventricle, machine is corresponding is SV4 and heats control valve is SV4B.
In an embodiment of the present invention, when multiple on-line system is in pure refrigeration mode or main refrigeration mode, it is not keyed up
Indoor set or be in the refrigeration control valve corresponding to indoor set of refrigeration mode and be in opening, the indoor set being not keyed up
Or it is in the control valve that heats corresponding to the indoor set of refrigeration mode to be closed.
When multiple on-line system is in pure refrigeration mode or main refrigeration mode, if the indoor set being not keyed up or be in
The indoor set of refrigeration mode receives heating mode instruction, then heating mode instruction is sent to part flow arrangement 10 by this indoor set.
Part flow arrangement 10 also includes: control module (not specifically illustrated in figure), and control module is for according to the aperture-persistent period preset
Table obtains target aperture and the target time duration of restricting element in this indoor set, and controls opening of restricting element in this indoor set
Spend to target aperture to regulate in this indoor set pressure before and after restricting element, and when in this indoor set restricting element with target
During the aperture operational objective persistent period, the aperture of restricting element in this indoor set is regulated to maximum opening, and in time delay first
After Preset Time, control refrigeration control valve corresponding to this indoor set and close, and after time delay the second Preset Time, control this room
What interior machine was corresponding heats control valve unlatching.
According to one embodiment of present invention, the aperture-persistent period table preset is according to restricting element in each indoor set
Flow curve obtain.
Specifically, at the indoor set being not keyed up or be in the indoor set of refrigeration mode and receive heating mode instruction
Time, if control that the aperture of restricting element in this indoor set is little and the persistent period in short-term, then in this indoor set before restricting element
Rear pressure there will be all press insufficient, when in this indoor set restricting element aperture regulation to maximum opening time, still can produce relatively
Big coolant washes away sound；And if it is very big to control the aperture of restricting element in this indoor set, the most all pressing effect, coolant washed away
Sound is without any improvement.It addition, the ability of each indoor set is different, the bore of the restricting element used or structure are also different
, therefore considering can be according to the bore of the difference section merogenesis fluid element of flow curve or architectural difference.Due to each indoor
In machine, the flow curve of restricting element is different, and target aperture and the target time duration of corresponding restricting element are the most different, to this end,
Aperture-persistent period the table of the restricting element of different flow curve is obtained, as shown in table 1 by experiment.
In Table 1, in each indoor set, the target time duration of restricting element is definite value, according to this target time duration,
The target aperture of each restricting element is obtained by great many of experiments.It is understood that target time duration can also be different,
And the corresponding different target aperture of different target time duration, aperture the most as shown in table 2-persistent period table.
When multiple on-line system is in pure refrigeration mode or main refrigeration mode, if the indoor set being not keyed up or be in
The indoor set of refrigeration mode receives heating mode instruction, then heating mode instruction is sent to part flow arrangement 10 by this indoor set.
When control module in part flow arrangement 10 selects corresponding target aperture and target Continuous according to the aperture preset-persistent period table
Between all press, and after all pressures, the aperture of the restricting element of this indoor set is regulated to maximum opening by control module, thus keeps away
Exempt to reach suddenly because of restricting element that the coolant rapid flow that maximum opening causes causes washes away sound, effectively improve products noise
Quality, simultaneously because be always maintained at less target aperture, thus effectively reduce and flows out to low-voltage tube by refrigeration control valve
Coolant quantity, substantially reduces the impact on other indoor set refrigerating capacities, improves product comfort.Then, control module will
The aperture of the restricting element of this indoor set regulates to the first Preset Time of maximum opening, controls the refrigeration that this indoor set is corresponding
Control valve is closed, and after time delay the second Preset Time, the control valve that heats controlling this indoor set corresponding is opened, and according in advance
Set and restricting element is controlled, make this indoor set heat according to user's request.
Further, as illustrated in fig. 2, it is assumed that multiple on-line system is at pure refrigeration mode, and the first to the 3rd indoor set
In refrigeration mode, its refrigeration circuit is as represented by the arrows in the dashed line in figure 2.When mechanism heat start in fourth ventricle, part flow arrangement 10
Select in fourth ventricle according to table 1 that in machine, the target aperture of restricting element EEV4 is Ps4 and target time duration is Ts, then by the 4th
In indoor set restricting element EEV4 aperture regulation to target aperture Ps4 and keep target time duration Ts all to press, then
By the aperture regulation of restricting element EEV4 in machine in fourth ventricle to maximum opening, and control the refrigeration control that machine in fourth ventricle is corresponding
Valve SV4 time delay the first preset time T 1 is closed, and heats control valve SV4B time delay the second preset time T 1+T2 and opens, heats stream
As shown in solid arrow in Fig. 2.Due to before controlling the refrigeration control valve that in fourth ventricle, machine is corresponding and closing, to machine in fourth ventricle
Middle restricting element has carried out Pressure and Control, thus effectively prevents a large amount of coolant from throttling first in fourth ventricle in machine along refrigeration circuit
Part pours in down a chimney rapidly to indoor heat exchanger, it is to avoid what in liquid pipe, coolant rapid flow caused washes away sound, simultaneously by Pressure and Control,
Substantially reduce in fourth ventricle in the machine the first Preset Time before refrigeration control valve cuts out, through refrigeration control valve to low pressure effluent
The coolant quantity gone out, thus in reducing fourth ventricle, the start of mechanism heat is on the impact of mechanism cold ability in refrigeration.
Multiple on-line system according to embodiments of the present invention, when multiple on-line system is in pure refrigeration mode or main refrigeration mode
Time, if the indoor set being not keyed up or be in the indoor set of refrigeration mode and receive heating mode instruction, then this indoor set will
Heating mode instruction is sent to part flow arrangement.Control module in part flow arrangement obtains according to the aperture preset-persistent period table
The target aperture of restricting element and target time duration in this indoor set, and control in this indoor set the aperture of restricting element to mesh
Mark aperture to regulate in this indoor set pressure before and after restricting element, and when in this indoor set restricting element transport with target aperture
During row target time duration, the aperture of restricting element in this indoor set is regulated to maximum opening, and when time delay first is preset
After between, control refrigeration control valve corresponding to this indoor set and close, and after time delay the second Preset Time, control this indoor set pair
The control valve that heats answered is opened, thus is prevented effectively from because in indoor set, the aperture of restricting element regulates suddenly to maximum opening and causes
Coolant rapid flow produce wash away sound, thus improve products noise quality, can reduce by refrigeration control valve stream simultaneously
Go out the coolant quantity to low-voltage tube, substantially reduce the impact of mechanism cold ability in other cool rooms.
In describing the invention, it is to be understood that term " first ", " second " are only used for describing purpose, and can not
It is interpreted as instruction or hint relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " the
One ", the feature of " second " can express or implicitly include at least one this feature.In describing the invention, " multiple "
It is meant that at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", " fixing " etc.
Term should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or integral；Can be that machinery connects
Connect, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, in can being two elements
The connection in portion or the interaction relationship of two elements, unless otherwise clear and definite restriction.For those of ordinary skill in the art
For, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
Example " or the description of " some examples " etc. means to combine this embodiment or example describes specific features, structure, material or spy
Point is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be in office
One or more embodiments or example combine in an appropriate manner.Additionally, in the case of the most conflicting, the skill of this area
The feature of the different embodiments described in this specification or example and different embodiment or example can be tied by art personnel
Close and combination.
Although above it has been shown and described that embodiments of the invention, it is to be understood that above-described embodiment is example
Property, it is impossible to being interpreted as limitation of the present invention, those of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, revises, replaces and modification.
Claims (10)
1. a multiple on-line system heats the control method of indoor set, it is characterised in that described multiple on-line system includes outdoor
Machine, multiple indoor set and part flow arrangement, each indoor set in the plurality of indoor set all includes restricting element, and described shunting fills
Putting and include corresponding with each indoor set in the plurality of indoor set heating control valve and refrigeration control valve, described method includes
Following steps:
When described multiple on-line system is in pure refrigeration mode or main refrigeration mode, if the indoor set being not keyed up or be in
The indoor set of refrigeration mode receives heating mode instruction, then the instruction of described heating mode is sent to described shunting by this indoor set
Device；
Described part flow arrangement obtains target aperture and the mesh of restricting element in this indoor set according to the aperture-persistent period table preset
The mark persistent period, and control restricting element in this indoor set and be opened into described target aperture to regulate restricting element in this indoor set
Before and after pressure；
When in this indoor set, restricting element runs described target time duration with described target aperture, described part flow arrangement should
In indoor set, the aperture of restricting element regulates to maximum opening, and after time delay the first Preset Time, controls this indoor set corresponding
Refrigeration control valve close, and after time delay the second Preset Time, the control valve that heats controlling this indoor set corresponding is opened.
Multiple on-line system the most according to claim 1 heats the control method of indoor set, it is characterised in that described default
Aperture-persistent period table according in each indoor set restricting element flow curve obtain.
Multiple on-line system the most according to claim 2 heats the control method of indoor set, it is characterised in that described default
Aperture-persistent period table be:
Wherein, EEV1, EEV2 ..., EEVm are followed successively by first to the restricting element in m indoor set, and Ps1, Ps2 ..., Psm depend on
Secondary is first to the target aperture of restricting element in m indoor set, and Ts is first to hold to the target of restricting element in m indoor set
The continuous time, m is positive integer.
Multiple on-line system the most according to claim 2 heats the control method of indoor set, it is characterised in that described default
Aperture-persistent period table be:
Wherein, EEV1, EEV2 ..., EEVm are followed successively by first to the restricting element in m indoor set, and Ts1, Ts2 ..., Tsn are
First to the target time duration of restricting element in m indoor set, and when described target time duration is Ts1, first to m room
In interior machine, the target aperture of restricting element is followed successively by Ps11, Ps12 ..., Ps1m, when described target time duration is Ts2, the
One is followed successively by Ps21, Ps22 ..., Ps2m to the target aperture of restricting element in m indoor set ..., when described target Continuous
Between when being Tsn, in first to m indoor set, the target aperture of restricting element is followed successively by Psn1, Psn2 ..., Psnm, m and n is
Positive integer.
5., according to heating the control method of indoor set in the multiple on-line system according to any one of claim 1-4, its feature exists
In, when described multiple on-line system is in described pure refrigeration mode or described main refrigeration mode, described in the indoor set that is not keyed up
Or be in the refrigeration control valve corresponding to the indoor set of refrigeration mode and be in opening, described in the indoor set that is not keyed up or
It is in the control valve that heats corresponding to the indoor set of refrigeration mode to be closed.
6. a multiple on-line system, it is characterised in that including:
Off-premises station；
Multiple indoor sets, each indoor set in the plurality of indoor set all includes restricting element；
Part flow arrangement, described part flow arrangement include corresponding with each indoor set in the plurality of indoor set heat control valve and
Refrigeration control valve, wherein, when described multiple on-line system is in pure refrigeration mode or main refrigeration mode, if the room being not keyed up
Interior machine or be in the indoor set of refrigeration mode and receive heating mode instruction, then the instruction of described heating mode is sent out by this indoor set
Give described part flow arrangement；
Described part flow arrangement also includes:
Control module, described control module is for obtaining restricting element in this indoor set according to the aperture-persistent period table preset
Target aperture and target time duration, and control in this indoor set the aperture of restricting element should with regulation to described target aperture
Pressure before and after restricting element in indoor set, and when in this indoor set restricting element with described target aperture run described target
During the persistent period, the aperture of restricting element in this indoor set is regulated to maximum opening, and after time delay the first Preset Time, control
Make refrigeration control valve corresponding to this indoor set to close, and after time delay the second Preset Time, control the system that this indoor set is corresponding
Heat control valve (HCV) is opened.
Multiple on-line system the most according to claim 6, it is characterised in that described default aperture-persistent period table according to
In each indoor set, the flow curve of restricting element obtains.
Multiple on-line system the most according to claim 7, it is characterised in that described default aperture-persistent period table is:
Wherein, EEV1, EEV2 ..., EEVm are followed successively by first to the restricting element in m indoor set, and Ps1, Ps2 ..., Psm depend on
Secondary is first to the target aperture of restricting element in m indoor set, and Ts is first to hold to the target of restricting element in m indoor set
The continuous time, m is positive integer.
Multiple on-line system the most according to claim 7, it is characterised in that described default aperture-persistent period table is:
Wherein, EEV1, EEV2 ..., EEVm are followed successively by first to the restricting element in m indoor set, and Ts1, Ts2 ..., Tsn are
First to the target time duration of restricting element in m indoor set, and when described target time duration is Ts1, first to m room
In interior machine, the target aperture of restricting element is followed successively by Ps11, Ps12 ..., Ps1m, when described target time duration is Ts2, the
One is followed successively by Ps21, Ps22 ..., Ps2m to the target aperture of restricting element in m indoor set ..., when described target Continuous
Between when being Tsn, in first to m indoor set, the target aperture of restricting element is followed successively by Psn1, Psn2 ..., Psnm, m and n is
Positive integer.
10. according to the multiple on-line system according to any one of claim 6-9, it is characterised in that at described multiple on-line system
When described pure refrigeration mode or described main refrigeration mode, described in the indoor set that is not keyed up or the indoor being in refrigeration mode
Refrigeration control valve corresponding to machine is in opening, described in the indoor set that is not keyed up or the indoor set institute being in refrigeration mode
The corresponding control valve that heats is closed.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109944974A (en) * | 2019-03-01 | 2019-06-28 | 中国恩菲工程技术有限公司 | Switch valve equipment and control method, device, equipment and computer-readable medium |
| CN111426009A (en) * | 2020-04-03 | 2020-07-17 | 广东美的暖通设备有限公司 | Control method of air conditioning system, air conditioning system and computer storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014020594A (en) * | 2012-07-12 | 2014-02-03 | Sharp Corp | Air conditioner |
| CN103982987A (en) * | 2014-05-07 | 2014-08-13 | 广东美的暖通设备有限公司 | Method and system for preventing bias flowing of refrigerant in multi-split air conditioner and multi-split air conditioner |
| CN104748239A (en) * | 2015-03-31 | 2015-07-01 | 广东美的暖通设备有限公司 | Multi-split system |
| CN105258275A (en) * | 2015-09-23 | 2016-01-20 | 广东美的暖通设备有限公司 | Multi-split system and low noise control method for electronic expansion valves of multi-split system |
| JP2016017673A (en) * | 2014-07-07 | 2016-02-01 | 三菱電機株式会社 | Air conditioner |
-
2016
- 2016-03-15 CN CN201610146148.5A patent/CN105757891B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014020594A (en) * | 2012-07-12 | 2014-02-03 | Sharp Corp | Air conditioner |
| CN103982987A (en) * | 2014-05-07 | 2014-08-13 | 广东美的暖通设备有限公司 | Method and system for preventing bias flowing of refrigerant in multi-split air conditioner and multi-split air conditioner |
| JP2016017673A (en) * | 2014-07-07 | 2016-02-01 | 三菱電機株式会社 | Air conditioner |
| CN104748239A (en) * | 2015-03-31 | 2015-07-01 | 广东美的暖通设备有限公司 | Multi-split system |
| CN105258275A (en) * | 2015-09-23 | 2016-01-20 | 广东美的暖通设备有限公司 | Multi-split system and low noise control method for electronic expansion valves of multi-split system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109944974A (en) * | 2019-03-01 | 2019-06-28 | 中国恩菲工程技术有限公司 | Switch valve equipment and control method, device, equipment and computer-readable medium |
| CN111426009A (en) * | 2020-04-03 | 2020-07-17 | 广东美的暖通设备有限公司 | Control method of air conditioning system, air conditioning system and computer storage medium |
| CN111426009B (en) * | 2020-04-03 | 2021-06-18 | 广东美的暖通设备有限公司 | Control method of air conditioning system, air conditioning system and computer storage medium |
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