CN106545969A - Multiple on-line system and its outdoor restricting element control method - Google Patents
Multiple on-line system and its outdoor restricting element control method Download PDFInfo
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- CN106545969A CN106545969A CN201611050898.9A CN201611050898A CN106545969A CN 106545969 A CN106545969 A CN 106545969A CN 201611050898 A CN201611050898 A CN 201611050898A CN 106545969 A CN106545969 A CN 106545969A
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- Prior art keywords
- superheat
- restricting element
- default
- outdoor
- maximum opening
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Classifications
-
- 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
- F24F11/30—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
- F24F11/70—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
- F24F2110/00—Control inputs relating to air properties
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
-
- 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
-
- 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
Abstract
The invention discloses a kind of multiple on-line system and its outdoor restricting element control method, the multiple on-line system includes off-premises station and multiple indoor sets, and off-premises station includes compressor and outdoor restricting element, and the control method is comprised the following steps：During being controlled to outdoor restricting element, the discharge superheat of compressor is obtained；The current maximum opening of outdoor restricting element is modified according to discharge superheat.The method is adjusted to the current maximum opening of outdoor restricting element by the discharge superheat according to compressor, so that the aperture of outdoor restricting element disclosure satisfy that stable operation of the system in wide frequency ranges.
Description
Technical field
The present invention relates to air-conditioning technical field, the control method of outdoor restricting element in more particularly to a kind of multiple on-line system
And a kind of multiple on-line system.
Background technology
With social development, requirement more and more higher of the people to air conditioner industry technology is required to frequency conversion product range of operation
More and more wider, the requirement to frequency conversion product compressor operating scope is more and more wider.For air-conditioning system, system broadband model
When enclosing operation, security of system ensures that difficulty is increasing.For example, when system is run under the conditions of ultra low temperature/ultra-high temperature
When, due to outdoor environment temperature it is too low/it is too high, when being controlled to outdoor restricting element, be easily caused overshoot, and super
During allocation and transportation row, the reliability of system operation can be affected.
The content of the invention
It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.
For this purpose, it is an object of the present invention in proposing a kind of multiple on-line system outdoor restricting element control method,
The current maximum opening of outdoor restricting element is adjusted by the discharge superheat according to compressor, so that outdoor throttling unit
The aperture of part disclosure satisfy that stable operation of the system in wide frequency ranges.
Further object is that proposing a kind of multiple on-line system.
For achieving the above object, one aspect of the present invention embodiment proposes outdoor restricting element in a kind of multiple on-line system
Control method, the multiple on-line system include off-premises station and multiple indoor sets, and the off-premises station includes compressor and outdoor throttling
Element, the control method are comprised the following steps：During being controlled to the outdoor restricting element, the pressure is obtained
The discharge superheat of contracting machine；And the current maximum opening of the outdoor restricting element is repaiied according to the discharge superheat
Just.
The control method of outdoor restricting element in multiple on-line system according to embodiments of the present invention, to outdoor restricting element
During being controlled, the current maximum opening of outdoor restricting element is adjusted by the discharge superheat according to compressor
Section, so that the aperture of outdoor restricting element disclosure satisfy that stable operation of the system in wide frequency ranges.
According to one embodiment of present invention, it is described according to the discharge superheat to the current of the outdoor restricting element
Maximum opening is modified, including：Judge whether the discharge superheat presets the degree of superheat more than first and continues first to preset
Time；If the discharge superheat is more than the described first default degree of superheat and continues first Preset Time, will be described
The current maximum opening of outdoor restricting element tunes up the first default aperture.
According to one embodiment of present invention, preset the current maximum opening of the outdoor restricting element is tuned up first
After aperture, also include：After the second Preset Time of time delay, judge whether the discharge superheat was preset more than described first again
Temperature；If the discharge superheat continues the current of the outdoor restricting element more than the described first default degree of superheat
Maximum opening tunes up the described first default aperture；If the discharge superheat is kept less than the described first default degree of superheat
Current maximum opening is constant.
According to one embodiment of present invention, it is described according to the discharge superheat to the current of the outdoor restricting element
Maximum opening is modified, and also includes：Judge the discharge superheat whether less than the second default degree of superheat and to continue the 3rd pre-
If the time, wherein, the described second default degree of superheat is less than the described first default degree of superheat；If the discharge superheat is less than institute
State the second default degree of superheat and continue the 3rd Preset Time, then the current maximum opening of the outdoor restricting element is turned down
Second default aperture.
According to one embodiment of present invention, preset turning the current maximum opening of the outdoor restricting element down second
After aperture, also include：After the 4th Preset Time of time delay, judge whether the discharge superheat was preset less than described second again
Temperature；If the discharge superheat continues the current of the outdoor restricting element less than the described second default degree of superheat
Maximum opening turns the described second default aperture down, until the aperture of the outdoor restricting element reaches default initial maximum and opens
Degree.
For achieving the above object, another aspect of the present invention embodiment proposes a kind of multiple on-line system, including：Off-premises station,
The off-premises station includes compressor and outdoor restricting element；Multiple indoor sets；Control module, the control module is for institute
State during outdoor restricting element is controlled, obtain the discharge superheat of the compressor, and according to the discharge superheat
Spend the current maximum opening to the outdoor restricting element to be modified.
Multiple on-line system according to embodiments of the present invention, during being controlled to outdoor restricting element, controls mould
Block is adjusted to the current maximum opening of outdoor restricting element by the discharge superheat according to compressor, so that outdoor throttling
The aperture of element disclosure satisfy that stable operation of the system in wide frequency ranges.
According to one embodiment of present invention, the control module is first to the outdoor throttling according to the discharge superheat
When the current maximum opening of part is modified, wherein, the control module judges whether the discharge superheat is pre- more than first
If the degree of superheat and continuing the first Preset Time, if the discharge superheat is more than the described first default degree of superheat and continues described
The current maximum opening of the outdoor restricting element is then tuned up the first default aperture by the first Preset Time, the control module.
According to one embodiment of present invention, the control module is by the current maximum opening of the outdoor restricting element
After tuning up the first default aperture, the control module also, after the second Preset Time of time delay, judges the discharge superheat again
Whether more than the described first default degree of superheat, wherein, it is if the discharge superheat is more than the described first default degree of superheat, described
Control module then continues for the current maximum opening of the outdoor restricting element to tune up the described first default aperture；If the row
The gas degree of superheat then keeps current maximum opening constant less than the described first default degree of superheat, the control module.
According to one embodiment of present invention, the control module is first to the outdoor throttling according to the discharge superheat
When the current maximum opening of part is modified, wherein, whether the control module also judges the discharge superheat less than second
The default degree of superheat and continue the 3rd Preset Time, if the discharge superheat is less than the described second default degree of superheat and lasting institute
State the 3rd Preset Time, the control module is then turned the current maximum opening of the outdoor restricting element down second and default opened
Degree, wherein, the described second default degree of superheat is less than the described first default degree of superheat.
According to one embodiment of present invention, the control module is by the current maximum opening of the outdoor restricting element
After turning the second default aperture down, the control module also, after the 4th Preset Time of time delay, judges the discharge superheat again
Whether less than the described second default degree of superheat, wherein, it is if the discharge superheat is less than the described second default degree of superheat, described
Control module then continues to turn the current maximum opening of the outdoor restricting element down described second default aperture, until the room
The aperture of outer restricting element reaches default initial maximum aperture.
Description of the drawings
Fig. 1 is the structural representation of multiple on-line system according to an embodiment of the invention；
Fig. 2 is the connection figure that off-premises station according to an embodiment of the invention is communicated with indoor set；
Fig. 3 is the structural representation that off-premises station according to an embodiment of the invention is communicated with indoor set；
Fig. 4 is the flow process of the control method of outdoor restricting element in multiple on-line system according to an embodiment of the invention
Figure；And
Fig. 5 is the flow chart of the control method of outdoor restricting element in multiple on-line system according to embodiments of the present invention.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention.
With reference to the accompanying drawings come the control method of outdoor restricting element in the multiple on-line system of the embodiment of the present invention is described with
And multiple on-line system.
Fig. 1 is the structural representation of multiple on-line system according to an embodiment of the invention.As shown in figure 1, the multi-connected machine
System may include off-premises station 10, multiple indoor sets 20 and control module 30.
Wherein, off-premises station 10 may include compressor 11, oil eliminator 12, capillary 13, cross valve 14, outdoor heat exchanger
15th, outdoor fan 16, fluid reservoir 17 and outdoor restricting element 18.The first end phase of the exhaust outlet of compressor 11 and oil eliminator 12
Even, the second end of oil eliminator 12 is connected with the gas returning port of compressor 11 by capillary 13, the 3rd end of oil eliminator 12 and
The first end of cross valve 14 is connected, and the second end of cross valve 14 passes through one end phase of outdoor heat exchanger 15 and outdoor restricting element 18
Even, outdoor fan 16 is disposed in the outdoor on heat exchanger 15, and the 3rd end of cross valve 14 is returned by fluid reservoir 17 and compressor 11
Gas port be connected, the 4th end of cross valve 14 is connected with one end of multiple indoor sets 20, the other end of outdoor restricting element 18 with it is many
The other end of individual indoor set 20 is connected.
Multiple indoor sets 20 may include machine in the first indoor set 21, the second indoor set 22, the 3rd indoor set 23 and fourth ventricle
24 ..., wherein, each indoor set includes indoor heat exchanger and indoor restricting element, also, as shown in Fig. 2 each indoor set
It is assigned an address, the communication between the communication being easy between each indoor set, and each indoor set and off-premises station 10, example
Such as, the first indoor set 21 is assigned the first address, and the second indoor set 22 is assigned the second address ....In addition, each indoor set is also
Communicated with respective line control machine.
During multiple on-line system is run, in order to realize the balance Control Scheme of refrigerant pressure, as shown in figure 3, often
Individual indoor set sends corresponding operational factor to off-premises station 10, and for example, the running status of indoor set, indoor restricting element are opened
Degree, indoor set operational mode time etc..Off-premises station 10 starts compressor 11 according to indoor set demand, and to outdoor restricting element 18
It is controlled.
When being controlled to outdoor restricting element 18, the control logic in correlation technique is to pre-set outdoor throttling
The initial maximum aperture of element 18, and in whole control process, the maximum opening is no longer adjusted, although which can be protected
Reliability service in the narrow frequency range of card system, but with the raising of system use range, system operation frequency range broadens,
Under given conditions, for example, under the conditions of ultra-high temperature/ultra low temperature, long-time is in overshoot shape by outdoor restricting element 18
State, and system reliability service cannot be also met under overshoot state, thus the maximum of the outer restricting element 18 of original fixed chamber is opened
The control mode of degree cannot meet wide frequency ranges operation.For this purpose, in an embodiment of the present invention, transport in multiple on-line system
During row, control module 30 judges the actually required maximum opening of outdoor restricting element 18 according to running parameter, with
The maximum opening of outdoor restricting element 18 is adjusted, it is ensured that system can be in safe and reliable operation in wide frequency ranges.
Specifically, control module 30 obtains compressor 11 for during being controlled to outdoor restricting element 18
Discharge superheat, and the current maximum opening of outdoor restricting element 18 is modified according to discharge superheat.
According to one embodiment of present invention, control module 30 according to discharge superheat to the current of outdoor restricting element 18
When maximum opening is modified, whether control module 30 judges discharge superheat more than the first default degree of superheat and to continue first pre-
If the time, if discharge superheat is more than the first default degree of superheat and continues the first Preset Time, control module 30 is then by outdoor
The current maximum opening of restricting element 18 tunes up the first default aperture.Wherein, the first default degree of superheat, the first Preset Time and the
One default aperture can be demarcated according to actual conditions.
Specifically, when system boot runs, outdoor restricting element 18 has default initial maximum aperture, and system exists
In the default initial maximum aperture, PI regulations are carried out to the aperture of outdoor restricting element 18, while real-time judge compressor 11
Discharge superheat.If the discharge superheat of compressor 11 is more than the first default degree of superheat and continues the first Preset Time,
Illustrate that the aperture of outdoor restricting element 18 has reached default initial maximum aperture, system long-time is in overshoot state, is
Guarantee system safe and reliable operation, now needs the aperture of outdoor restricting element 18 further to tune up, to meet higher frequency
Demand, but the aperture of outdoor restricting element 18 is limited by initial maximum aperture, it is then desired to outdoor restricting element 18
Maximum opening carry out tuning up control, then, in the maximum opening of the outdoor restricting element 18 after tuning up to outdoor throttling unit
Part 18 carries out PI regulations.So as to be carried out to the current maximum opening of outdoor restricting element by the discharge superheat according to compressor
Adjust, so that the aperture of outdoor restricting element disclosure satisfy that stable operation of the system in high-frequency range.
Further, according to one embodiment of present invention, control module 30 by outdoor restricting element 18 it is current most
After big aperture tunes up the first default aperture, control module 30 also, after the second Preset Time of time delay, judges discharge superheat again
Whether more than the first default degree of superheat；If discharge superheat then continues room more than the first default degree of superheat, control module 30
The current maximum opening of outer restricting element 18 tunes up the first default aperture；If discharge superheat is less than the first default degree of superheat,
Control module 30 then keeps current maximum opening constant.Wherein, the second Preset Time can be demarcated according to actual conditions.
Specifically, in system operation, when compressor 11 discharge superheat more than the first default degree of superheat and
Continue the first Preset Time, default maximum initial opening is then tuned up the first default aperture by control module 30, and according to tuning up
Maximum opening afterwards carries out PI regulations to outdoor restricting element 18.After the second Preset Time of time delay, control module 30 judges again
Whether the discharge superheat of compressor 11 is more than the first default degree of superheat.If it is, the basis of the maximum opening after tuning up
On, the first default aperture is tuned up again, and PI regulations are carried out to outdoor restricting element 18 according to the maximum opening after tuning up again；
Otherwise, the maximum opening of outdoor restricting element 18 is not tuned up, is repeated according to above-mentioned steps.So as to by maximum
Aperture is progressively adjusted, to ensure that the current maximum opening of outdoor restricting element will not arrange excessive, it is ensured that system safely may be used
The operation leaned on.
According to one embodiment of present invention, control module 30 according to discharge superheat to the current of outdoor restricting element 18
When maximum opening is modified, control module 30 also judges whether discharge superheat presets the degree of superheat less than second and continues the 3rd
Preset Time, if discharge superheat is less than the second default degree of superheat and continues the 3rd Preset Time, control module 30 is then by room
The current maximum opening of outer restricting element 18 turns the second default aperture down, wherein, the second default degree of superheat was preset less than first
Temperature, the second default degree of superheat, the 3rd Preset Time and the second default aperture can be demarcated according to actual conditions.
Specifically, in control process, if it is judged that discharge superheat presets the degree of superheat less than first, then further
Judge discharge superheat whether less than the second default degree of superheat.If discharge superheat is less than the second default degree of superheat and continues the
Three Preset Times, then illustrate the running frequency of compressor 11 than relatively low, outdoor restricting element 18 without the need for too high maximum opening, this
When the maximum opening of outdoor restricting element 18 can be carried out turning control down, to ensure that system is safe and reliable in low frequency ranges
Operation.
According to one embodiment of present invention, the current maximum opening of outdoor restricting element 18 is being turned down by control module 30
After second default aperture, control module 30 judges whether discharge superheat is less than the also after the 4th Preset Time of time delay again
The two default degrees of superheat；If discharge superheat then continues outdoor restricting element less than the second default degree of superheat, control module 30
18 current maximum opening turns the second default aperture down, until the aperture of outdoor restricting element 18 reaches default initial maximum and opens
Degree.Wherein, the 4th Preset Time can be demarcated according to actual conditions.
Specifically, when the discharge superheat for judging compressor 11 presets the degree of superheat less than second and continues the 3rd presets
Between when, turn the maximum opening of outdoor restricting element 18 down second default aperture, and according to regulation after current maximum opening pair
Outdoor restricting element 18 carries out PI regulations.After the 4th Preset Time of time delay, the aperture of outdoor restricting element 18 is judged again whether
Less than the second default degree of superheat.If it is, on the basis of maximum opening after turning down, turning maximum opening down second again
Default aperture, and PI regulations are carried out to outdoor restricting element 18 according to the maximum opening after turning down again；Otherwise, not to outdoor section
The maximum opening of fluid element 18 is adjusted, and repeats according to above-mentioned steps, until the maximum opening of outdoor restricting element 18
After reaching default initial maximum aperture, no longer maximum opening is adjusted.So as to by the maximum to outdoor restricting element
Aperture is progressively turned down control, to ensure that it is too small that maximum opening will not be arranged, it is ensured that safety of the system in low frequency ranges
Reliability service.
To make those skilled in the art be better understood upon the present invention, Fig. 4 is according to an embodiment of the invention multi-joint
The flow chart of the control method of outdoor restricting element in machine system.As shown in figure 4, outdoor restricting element in the multiple on-line system
Control method may include following steps：
S101, brings into operation.
S102, obtains the discharge superheat HDSH of compressor.
Whether S103, judge HDSH more than first default degree of superheat A, and continue the first preset time t 1.If it is, performing
Step S104；If not, return to step S102.
The initial maximum aperture of outdoor restricting element is tuned up the first default aperture m by S104.
S105, the second preset time t of time delay 2.
Whether S106, judge HDSH more than A.If it is, execution step S107；If not, execution step S108.
The current maximum opening of outdoor restricting element is tuned up m by S107.
Whether S108, judge HDSH less than second default degree of superheat B, and continue the 3rd preset time t 3.If it is, performing
Step S109；If not, execution step S113.
S109, turns the current maximum opening of outdoor restricting element down second default aperture n.
S110, the 4th preset time t 4 of time delay.
Whether S111, judge HDSH less than B.If it is, execution step S112；If not, execution step S113.
S112, judges whether the aperture of outdoor restricting element reaches default maximum initial opening.If it is, execution step
S113；If not, return to step S109.
S113, keeps current maximum opening constant.
In sum, multiple on-line system according to embodiments of the present invention, in the process being controlled to outdoor restricting element
In, control module is adjusted to the current maximum opening of outdoor restricting element by the discharge superheat according to compressor, with
The aperture of outdoor restricting element is made to disclosure satisfy that stable operation of the system in wide frequency ranges.
Fig. 5 is the flow chart of the control method of outdoor restricting element in multiple on-line system according to embodiments of the present invention.
In embodiments of the invention, multiple on-line system may include off-premises station and multiple indoor sets, and off-premises station may include compressor and outdoor
Restricting element.
As shown in figure 5, the control method of outdoor restricting element may include following steps in the multiple on-line system：
S1, during being controlled to outdoor restricting element, obtains the discharge superheat of compressor.
S2, is modified to the current maximum opening of outdoor restricting element according to discharge superheat.
According to one embodiment of present invention, the current maximum opening of outdoor restricting element is carried out according to discharge superheat
Amendment, including：Judge whether discharge superheat presets the degree of superheat more than first and continues the first Preset Time；If discharge superheat
Degree is more than the first default degree of superheat and continues the first Preset Time, then the current maximum opening of outdoor restricting element is tuned up first
Default aperture.
According to one embodiment of present invention, the current maximum opening of outdoor restricting element is being tuned up into the first default aperture
Afterwards, also include：After the second Preset Time of time delay, judge discharge superheat whether more than the first default degree of superheat again；If row
The gas degree of superheat then continues for the current maximum opening of outdoor restricting element to tune up first and default opens more than the first default degree of superheat
Degree；If discharge superheat keeps current maximum opening constant less than the first default degree of superheat.
According to one embodiment of present invention, the current maximum opening of outdoor restricting element is carried out according to discharge superheat
Amendment, also includes：Judge whether discharge superheat presets the degree of superheat less than second and continues the 3rd Preset Time, wherein, second
The default degree of superheat is less than the first default degree of superheat；If discharge superheat less than the second default degree of superheat and continue the 3rd it is default when
Between, then turn the current maximum opening of outdoor restricting element down second default aperture.
According to one embodiment of present invention, turning the current maximum opening of outdoor restricting element down second default aperture
Afterwards, also include：After the 4th Preset Time of time delay, judge discharge superheat whether less than the second default degree of superheat again；If row
The gas degree of superheat then continues to turn the current maximum opening of outdoor restricting element down second and default opens less than the second default degree of superheat
Degree, until the aperture of outdoor restricting element reaches default initial maximum aperture.
It should be noted that not disclosing in the control method of outdoor restricting element in the multiple on-line system of the embodiment of the present invention
Details, refer to the details disclosed in the multiple on-line system of the embodiment of the present invention, specifically repeat no more here.
In sum, in multiple on-line system according to embodiments of the present invention outdoor restricting element control method, to room
During outer restricting element is controlled, by current maximum of the discharge superheat according to compressor to outdoor restricting element
Aperture is adjusted, so that the aperture of outdoor restricting element disclosure satisfy that stable operation of the system in wide frequency ranges.
In describing the invention, it is to be understood that term " " center ", " longitudinal direction ", " horizontal ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, is for only for ease of the description present invention and simplifies description, rather than indicates or imply that the device or element of indication must
With specific orientation, with specific azimuth configuration and operation, therefore must be not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include at least one this feature.In describing the invention, " multiple " are meant that at least two, such as two, three
It is individual etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or it is integral；Can be that machinery connects
Connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements, unless otherwise clearly restriction.For one 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 present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be with
It is the first and second feature directly contacts, or the first and second features is by intermediary mediate contact.And, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
Example ", or the description of " some examples " etc. mean specific features with reference to the embodiment or example description, structure, material or spy
Point is contained at least one embodiment or 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 with office
Combined in one or more embodiments or example in an appropriate manner.Additionally, in the case of not conflicting, the skill of this area
The feature of the different embodiments or example described in this specification and different embodiments or example can be tied by art personnel
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (10)
1. in a kind of multiple on-line system outdoor restricting element control method, it is characterised in that the multiple on-line system includes room
Outer machine and multiple indoor sets, the off-premises station include compressor and outdoor restricting element, and the control method is comprised the following steps：
During being controlled to the outdoor restricting element, the discharge superheat of the compressor is obtained；And
The current maximum opening of the outdoor restricting element is modified according to the discharge superheat.
2. in multiple on-line system as claimed in claim 1 outdoor restricting element control method, it is characterised in that the basis
The discharge superheat is modified to the current maximum opening of the outdoor restricting element, including：
Judge whether the discharge superheat presets the degree of superheat more than first and continues the first Preset Time；
If the discharge superheat is more than the described first default degree of superheat and continues first Preset Time, by the room
The current maximum opening of outer restricting element tunes up the first default aperture.
3. in multiple on-line system as claimed in claim 2 outdoor restricting element control method, it is characterised in that will be described
After the current maximum opening of outdoor restricting element tunes up the first default aperture, also include：
After the second Preset Time of time delay, judge the discharge superheat whether more than the described first default degree of superheat again；
If the discharge superheat more than the described first default degree of superheat, continue by the outdoor restricting element it is current most
Big aperture tunes up the described first default aperture；
If the discharge superheat keeps current maximum opening constant less than the described first default degree of superheat.
4. in multiple on-line system as claimed in claim 2 or claim 3 outdoor restricting element control method, it is characterised in that it is described
The current maximum opening of the outdoor restricting element is modified according to the discharge superheat, is also included：
Judge whether the discharge superheat presets the degree of superheat less than second and continues the 3rd Preset Time, wherein, described second
The default degree of superheat is less than the described first default degree of superheat；
If the discharge superheat is less than the described second default degree of superheat and continues the 3rd Preset Time, by the room
The current maximum opening of outer restricting element turns the second default aperture down.
5. in multiple on-line system as claimed in claim 4 outdoor restricting element control method, it is characterised in that will be described
After the current maximum opening of outdoor restricting element turns the second default aperture down, also include：
After the 4th Preset Time of time delay, judge the discharge superheat whether less than the described second default degree of superheat again；
If the discharge superheat less than the described second default degree of superheat, continue by the outdoor restricting element it is current most
Big aperture turns the described second default aperture down, until the aperture of the outdoor restricting element reaches default initial maximum aperture.
6. a kind of multiple on-line system, it is characterised in that include：
Off-premises station, the off-premises station include compressor and outdoor restricting element；
Multiple indoor sets；
Control module, the control module obtain the pressure for during being controlled to the outdoor restricting element
The discharge superheat of contracting machine, and the current maximum opening of the outdoor restricting element is repaiied according to the discharge superheat
Just.
7. multiple on-line system as claimed in claim 6, it is characterised in that the control module is according to the discharge superheat pair
When the current maximum opening of the outdoor restricting element is modified, wherein,
The control module judges whether the discharge superheat presets the degree of superheat more than first and continues the first Preset Time, such as
Really described discharge superheat is more than the described first default degree of superheat and continues first Preset Time, and the control module then will
The current maximum opening of the outdoor restricting element tunes up the first default aperture.
8. multiple on-line system as claimed in claim 7, it is characterised in that the control module is by the outdoor restricting element
Current maximum opening tune up the first default aperture after, the control module also, after the second Preset Time of time delay, judges again
Whether the discharge superheat presets the degree of superheat more than described first, wherein,
If the discharge superheat then continues the outdoor throttling more than the described first default degree of superheat, the control module
The current maximum opening of element tunes up the described first default aperture；
If the discharge superheat then keeps current maximum opening not less than the described first default degree of superheat, the control module
Become.
9. multiple on-line system as claimed in claim 7 or 8, it is characterised in that the control module is according to the discharge superheat
When degree is modified to the current maximum opening of the outdoor restricting element, wherein,
The control module also judges whether the discharge superheat presets the degree of superheat less than second and continues the 3rd Preset Time,
If the discharge superheat is less than the described second default degree of superheat and continues the 3rd Preset Time, the control module is then
Turn the current maximum opening of the outdoor restricting element down second default aperture, wherein, the described second default degree of superheat is less than
The described first default degree of superheat.
10. multiple on-line system as claimed in claim 9, it is characterised in that the control module is will the outdoor throttling unit
After the current maximum opening of part turns the second default aperture down, the control module also, after the 4th Preset Time of time delay, is sentenced again
Whether the discharge superheat that breaks presets the degree of superheat less than described second, wherein,
If the discharge superheat then continues the outdoor throttling less than the described second default degree of superheat, the control module
The current maximum opening of element turns the described second default aperture down, until the aperture of the outdoor restricting element reach it is default just
Beginning maximum opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611050898.9A CN106545969A (en) | 2016-11-22 | 2016-11-22 | Multiple on-line system and its outdoor restricting element control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611050898.9A CN106545969A (en) | 2016-11-22 | 2016-11-22 | Multiple on-line system and its outdoor restricting element control method |
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| Publication Number | Publication Date |
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| CN106545969A true CN106545969A (en) | 2017-03-29 |
Family
ID=58395021
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611050898.9A Pending CN106545969A (en) | 2016-11-22 | 2016-11-22 | Multiple on-line system and its outdoor restricting element control method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108826611A (en) * | 2018-03-19 | 2018-11-16 | 珠海格力电器股份有限公司 | Throttle valve method of adjustment, device, air-conditioning system, storage medium and electronic device |
| CN111023270A (en) * | 2019-12-31 | 2020-04-17 | 宁波奥克斯电气股份有限公司 | Control method and device of electronic expansion valve, air conditioner and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006250479A (en) * | 2005-03-14 | 2006-09-21 | Fujitsu General Ltd | Air conditioner |
| CN105864981A (en) * | 2016-04-26 | 2016-08-17 | 海信（山东）空调有限公司 | Adjusting method and system for multi-split air conditioner |
| CN105865074A (en) * | 2016-04-25 | 2016-08-17 | 广东美的暖通设备有限公司 | VRF air conditioning system and control method for heating and throttling element thereof |
| CN105972860A (en) * | 2016-04-29 | 2016-09-28 | 广东美的暖通设备有限公司 | Multi-split system and valve control method of supercooling return circuit of multi-split system |
-
2016
- 2016-11-22 CN CN201611050898.9A patent/CN106545969A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006250479A (en) * | 2005-03-14 | 2006-09-21 | Fujitsu General Ltd | Air conditioner |
| CN105865074A (en) * | 2016-04-25 | 2016-08-17 | 广东美的暖通设备有限公司 | VRF air conditioning system and control method for heating and throttling element thereof |
| CN105864981A (en) * | 2016-04-26 | 2016-08-17 | 海信（山东）空调有限公司 | Adjusting method and system for multi-split air conditioner |
| CN105972860A (en) * | 2016-04-29 | 2016-09-28 | 广东美的暖通设备有限公司 | Multi-split system and valve control method of supercooling return circuit of multi-split system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108826611A (en) * | 2018-03-19 | 2018-11-16 | 珠海格力电器股份有限公司 | Throttle valve method of adjustment, device, air-conditioning system, storage medium and electronic device |
| CN111023270A (en) * | 2019-12-31 | 2020-04-17 | 宁波奥克斯电气股份有限公司 | Control method and device of electronic expansion valve, air conditioner and storage medium |
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Application publication date: 20170329 |