CN104879875B - Machine control method and multi-online air-conditioning system in multi-online air-conditioning system - Google Patents
Machine control method and multi-online air-conditioning system in multi-online air-conditioning system Download PDFInfo
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- CN104879875B CN104879875B CN201410067830.6A CN201410067830A CN104879875B CN 104879875 B CN104879875 B CN 104879875B CN 201410067830 A CN201410067830 A CN 201410067830A CN 104879875 B CN104879875 B CN 104879875B
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- machine
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- interior
- expansion valve
- opening value
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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
- 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
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
-
- 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
- F24F11/70—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 machine control method and multi-online air-conditioning system in a kind of multi-online air-conditioning system, belongs to air-conditioning and its control method field, is designed to solve the problems, such as that more interior machines can not jointly control.Machine control method is respectively more interior machines setting grades in multi-online air-conditioning system of the present invention, and system controller controls the expansion valve opening of every interior machine to ensure that the high interior function of grade is preferentially less than its maximum opening value MaxVal ij working condition in expansion valve opening value respectively.Multi-online air-conditioning system of the present invention includes outer machine and at least two interior machines, and every interior machine is provided with expansion valve, and air-conditioning system also includes system controller, and system controller is used for the opening value for detecting and controlling every interior machine expansion valve.Machine control method and multi-online air-conditioning system can ensure that the high interior machine of grade preferentially meets requirement according to grade in multi-online air-conditioning system of the present invention, rational in infrastructure, easy to use, applied widely.
Description
Technical field
The present invention relates to machine control method in a kind of multi-online air-conditioning system and realize that the multi-connected machine of the control method is empty
Adjusting system.
Background technology
Multi-online air-conditioning system refers to that an outdoor unit connects the indoor set of two or more than two.Multi-gang air-conditioner system
System is generally made up of the interior machine in different use environments.The requirement and influence of the internal air conditioner effect of use environment are very
Greatly.By taking heating as an example, sun-drenched room is more much less than the heating load that dark moist room needs, VIP user room
Between than domestic consumer room to air-conditioning effect require it is high, be required to preferentially disclosure satisfy that the heating of VIP user in the same time
Demand.
In existing multi-connected machine machine generally use expansion valve come control by outer machine enter interior machine heat exchanger cold medium flux.Specifically
, the aperture size of expansion valve is calculated according to the coil temperature of interior machine heat exchanger.The interior spontaneous control expansion valve of machine
Aperture simply carries out a control, it is impossible to machine personalised effects difference in realizing on the whole, can not preferentially ensure important place
Air-conditioning effect.
The content of the invention
It is an object of the invention to propose that a kind of interior machine that can guarantee that grade is high preferentially meets the multi-connected machine of requirement
Machine control method in air-conditioning system.
The present invention's a further object is the multi-online air-conditioning system for proposing that a kind of more interior machines of energy jointly control.
For up to this purpose, on the one hand, the present invention uses following technical scheme：
Machine control method in a kind of multi-online air-conditioning system, this method are that respectively more interior machines set grades, system control
Device processed controls the expansion valve opening of every interior machine to ensure that the high interior function of grade is preferentially less than in expansion valve opening value respectively
Its maximum opening value MaxVal-ij working condition.
Particularly, it is less than high-grade interior machine expansion valve opening value by the expansion valve opening for the interior machine for reducing inferior grade
Its maximum opening value MaxVal-ij.
Particularly, methods described comprises the steps：
Step 1, for every in system interior machine setting coding ij, wherein, the grade that i characterizes this interior machine is i-stage, 1≤i
≤ N, N are whole interior machine number of degrees；It is machine in jth platform in i-stage that j, which characterizes this interior machine, and 1≤j≤Mi, Mi are i-stage
The interior machine number possessed；
Step 2, the minimum opening value MinVal-ij and maximum opening value MaxVal- of expansion valve setting for every interior machine
ij；The initial value for setting i is N, and the initial value for setting j is 1；
Whether the expansion valve opening value of machine is more than or equal to its maximum opening value MaxVal-ij in step 3, the i-th j platforms of detection,
More than or equal to then going to step 4；Less than then going to step 5；
Step 4, the expansion valve opening for reducing every interior machine in the i-th -1 grade to the 1st grade, go to step 3；
Whether j is equal to Mi in step 5, judgment step 3, is entered as j+1 not equal to then j and goes to step 3；Equal to then going to
Step 6；
Step 6, by every interior machine in the i-th -1 grade to the 1st grade it is current expansion valve opening value record be respectively the interior machine it is new
Maximum opening value MaxVal；I is entered as i-1, j and is entered as 1, goes to step 7；
Step 7, judge whether i is equal to 1, equal to then going to step 8；Not equal to then going to step 3；
Step 8, EP (end of program).
Further, in step 3, the method for the expansion valve opening of every interior machine is in the i-th -1 grade to the 1st grade of reduction：Will
The expansion valve opening value of every interior machine is adjusted to K times of currency in the i-th -1 grade to the 1st grade, wherein, 0 ＜ K ＜ 1.
Further, the K values corresponding to different grades of interior machine are different.
Further, the more low then corresponding K values of the grade of interior machine are smaller.
Particularly, when the expansion valve opening value of interior machine is minimum opening value then without adjustment.
Particularly, after system turns back on or restarts, then the system controller order according to grade from high to low again
Whether the expansion valve for detecting every interior machine successively is operated in maximum opening value.
On the other hand, the present invention uses following technical scheme：
A kind of multi-online air-conditioning system for being used to realize above-mentioned interior machine control method, the air-conditioning system is including outer machine and extremely
Few two interior machines, every interior machine are provided with expansion valve, and the air-conditioning system also includes system controller, and the system controller is used
In the opening value for detecting and controlling every interior machine expansion valve.
Particularly, the system controller is arranged on the outer machine.
Machine control method is to ensure that the high interior function of grade is preferentially full according to grade in multi-online air-conditioning system of the present invention
The high interior function of sufficient requirement, i.e. grade is preferentially less than its maximum opening value MaxVal-ij work in expansion valve opening value
Make state, by more interior machine Joint regulations, resource（Refrigerant）Allotment is more reasonable, and the needs such as VIP user can be allowed preferably to meet
Interior machine in the room of requirement is operated in more rational state.Machine corresponds to different COEFFICIENT Ks, Ke Yirang in different brackets
Adjust highly efficient, offered convenience for machine adjustment in follow-up inferior grade.
Multi-online air-conditioning system of the present invention realizes above-mentioned interior machine control method, rational in infrastructure, easy to use, the scope of application
Extensively.
Brief description of the drawings
Fig. 1 is machine control method flow chart in the multi-online air-conditioning system of the preferred embodiment of the present invention one.
Embodiment
Further illustrate technical scheme below in conjunction with the accompanying drawings and by embodiment.
Preferred embodiment one：
This preferred embodiment provides machine control method in a kind of multi-online air-conditioning system, and this method is respectively more interior machines
Grade is set, system controller controls the expansion valve opening of every interior machine to ensure the high interior function of grade preferentially in swollen respectively
Swollen valve opening value is less than its maximum opening value MaxVal-ij working condition.Wherein, by the expansion for the interior machine for reducing inferior grade
Valve opening makes high-grade interior machine expansion valve opening value be less than its maximum opening value MaxVal-ij.
As shown in figure 1, this method comprises the steps：
Step 1, for every in system interior machine setting coding ij, wherein, the grade that i characterizes this interior machine is i-stage, 1≤i
≤ N, N are whole interior machine number of degrees；It is machine in jth platform in i-stage that j, which characterizes this interior machine, and 1≤j≤Mi, Mi are i-stage
The interior machine number possessed.
Set the direction of the foundation including room of grade, floor, area, warming effect, whether be VIP user room etc..
No matter air-conditioning work is under refrigeration or heating mode, and these environmental factors can cause the load of interior machine different, and user
Factor can cause to the high or low of air-conditioning work effect requirements.So grade can be set for interior machine accordingly.
Step 2, the minimum opening value MinVal-ij and maximum opening value MaxVal- of expansion valve setting for every interior machine
ij；The initial value for setting i is N, and the initial value for setting j is 1.
Minimum opening value MinVal-ij is a fixed value, such as 200；Maximum opening value MaxVal-ij initial value is
One fixed value, such as 480, but the maximum opening value MaxVal-ij of every interior machine may be sent out during follow-up adjustment
Changing.In system, the minimum opening value MinVal-ij and/or maximum opening value MaxVal-ij of every interior machine can with it is identical,
Can also be different, depending on actual use situation.
Whether the expansion valve opening value of machine is more than or equal to its maximum opening value MaxVal-ij in step 3, the i-th j platforms of detection,
More than or equal to then going to step 4；Less than then going to step 5；
Step 4, the expansion valve opening for reducing every interior machine in the i-th -1 grade to the 1st grade, go to step 3.Reduce by the i-th -1 grade
Into the 1st grade, the specific method of the expansion valve opening of every interior machine is unlimited, and method for optimizing is：By every in the i-th -1 grade to the 1st grade
The expansion valve opening value of interior machine is adjusted to K times of currency, wherein, 0 ＜ K ＜ 1.K values corresponding to different grades of interior machine can
With it is identical can also be different, it is preferred that the more low then corresponding K values of the grade of interior machine are smaller.
Whether j is equal to Mi in step 5, judgment step 3, is entered as j+1 not equal to then j and goes to step 3；Equal to then going to
Step 6；
Step 6, by every interior machine in the i-th -1 grade to the 1st grade it is current expansion valve opening value record be respectively the interior machine it is new
Maximum opening value MaxVal；I is entered as i-1, j and is entered as 1, goes to step 7；
Step 7, judge whether i is equal to 1, equal to then going to step 8；Not equal to then going to step 3；
Step 8, EP (end of program).
In order to realize above-mentioned interior machine control method, this preferred embodiment provides a kind of multi-online air-conditioning system, the air-conditioning system
System includes outer machine, the system controller being arranged on outer machine and at least two interior machines；Every interior machine is provided with expansion valve.System
System controller is used for the opening value for detecting and controlling every interior machine expansion valve.According to the requirement of each interior machine, pass through interior machine
The interface such as controller or outer machine control panel sets the grade of each interior machine successively.By communication mechanism, outer chance is known in each
The grade of machine.
Following table show the record of adjustment twice for the multi-online air-conditioning system being made up of 10 interior machines, and mode of operation is system
Heat.
In the multi-online air-conditioning system, the grade of machine is 7 grades in 0#, is machine in grade highest；Machine in 3# and 8#
Grade is all 6 grades；The grade of machine is all 5 grades in 6# and 22#；The grade of machine is 4 grades in 11#；The grade of machine is 3 grades in 10#；
The grade of machine is 2 grades in 15#；The grade of machine is all 1 grade in 18# and 30#.
Machine first in detection level highest 0#.Its expansion valve opening value is 370 before adjustment starts, less than maximum opening value
MaxVal, illustrate air-conditioning effect energy meet demand, without adjustment, continue to detect next interior machine.
The machine only in 0# that grade is 7 grades, so what is next detected will be 6 grades of interior machine.The grade of machine in 3# and 8#
All it is 6 grades, according to sequence number, first detects machine in 3#.Machine expansion valve opening value is 480 in 3# before adjustment starts, and is maximum opening value
MaxVal initial value, illustrating to flow into the refrigerant of machine in 3# can not meet the air-conditioning effect demand of itself, it is necessary to be adjusted.
System controller adjusts the expansion valve opening value of 1 to 5 grade of all interior machine.Wherein, machine expansion valve opening value becomes in 5 grades
Machine expansion valve opening value in COEFFICIENT K=0.99,4 grade is multiplied by for currency is adjusted to currency be multiplied by machine in COEFFICIENT K=0.98,3 grade
Expansion valve opening value is adjusted to currency and is multiplied by machine expansion valve opening value in COEFFICIENT K=0.97,2 grade and is adjusted to currency to be multiplied by
Machine expansion valve opening value is adjusted to currency and is multiplied by COEFFICIENT K=0.95 in number K=0.96,1 grade.In upper table, "-" represents machine in 0#
Be all that the expansion valve opening value of machine in 6 grades of 8# automatically controls, do not adjusted, controlled by system controller.In addition, 5 grades
Machine expansion valve opening value has reached minimum value in 22#, is not also adjusted by system controller.
At regular intervals, outer machine rejudges whether machine expansion valve opening value in 6 grades of 3# is less than maximum opening value
MaxVal.If being still maximum opening value MaxVal, adjusted next time, until machine expansion valve opening value is less than most in 3#
Untill big opening value MaxVal.Machine expansion valve opening value is 478 in 3# after if third time adjusts, less than its maximum opening value
480, show in 3# that air conditioner effect has adjusted and finish.
Now machine expansion valve opening value is 320 in 8#, less than maximum opening value MaxVal, illustrates that air-conditioning effect can meet need
Ask, without adjustment, continue to detect next interior machine.
6 grades of all interior machines have all met to require, into the 5th grade in machine adjustment.The grade of machine is all in 6# and 22#
5 grades, machine in 6# is preferably detected according to sequence number.
The current aperture of machine is 311 in 6#, and the value is the new maximum opening value MaxVal formed in 3# after machine adjustment, so
Machine is currently operating in maximum opening value MaxVal, it is necessary to adjust 1 to 4 grade of all interior machines in 6#.The expansion valve of machine is automatic in 6#
Regulation, but no more than new maximum opening value MaxVal, i.e., 311.
1 to 4 grade of different COEFFICIENT K of each grade setting, COEFFICIENT K=0.98,2 grade of such as 4 grades of COEFFICIENT K=0.99,3 grade
COEFFICIENT K=0.96 of COEFFICIENT K=0.97,1 grade.At regular intervals, whether small outer machine rejudges machine expansion valve opening value in 6#
In 311.
Adjusted next time if being still maximum opening value until machine expansion valve opening value is less than maximum opening in 6#
Untill value.Assuming that machine expansion valve opening value is 308 in 6# after third time regulation, less than its maximum opening value 311, show machine in 6#
It is adjusted in place, continue to detect next interior machine.
Machine is operated in minimum opening value MinVal in 22#, illustrates the demand for being sufficient for air-conditioning, without adjustment, continues to examine
Survey next interior machine.
Followed by the adjustment of machine in 4 grades, above-mentioned Suitable content is repeated.Adjust after terminating by that analogy until in lowermost level
Untill machine.
When the expansion valve opening value of interior machine is minimum opening value then without adjustment.When system turns back on or restarts
Afterwards, then whether system controller detects the expansion valve of every interior machine and is operated in most successively according to the order of grade from high to low again
Big opening value.
Preferred embodiment two：
This preferred embodiment provides in a kind of multi-online air-conditioning system machine control method and for realizing the interior machine controlling party
The multi-online air-conditioning system of method, the content of control method and the structure of air-conditioning system and preferred embodiment one are essentially identical.Should
Control method is respectively more interior machines setting grades, and system controller controls the expansion valve opening of every interior machine to ensure respectively
The high interior function of grade is preferentially less than its maximum opening value MaxVal-ij working condition in expansion valve opening value.The air-conditioning
System includes outer machine, system controller and at least two interior machines；Every interior machine is provided with expansion valve.System controller is used for
Detect and control the opening value of every interior machine expansion valve.
Difference is：The specific steps of control method are unlimited, can realize this method；In adjustment inferior grade
The maximum opening value MaxVal of the expansion valve of machine, COEFFICIENT K can with it is identical can also be according to the different and different of grade.
System controller can be arranged on outer machine, can also be arranged at other positions, can be timely and accurately interior
Machine in machine current expansion valve opening value and adjustment inferior grade in machine setting grade, detection.
During adjustment, grade can be less than to the interior machine of this one-level again after all interior machines all adjust in certain one-level
The current opening value of expansion valve be set as new maximum opening value；In can also will be all adjusted after adjusting each time every
The current opening value of expansion valve of machine is set as new maximum opening value.
Claims (7)
1. machine control method in a kind of multi-online air-conditioning system, it is characterised in that this method is respectively more interior machines settings etc.
Level, system controller control the expansion valve opening of every interior machine to ensure that the high interior function of grade is preferentially opened in expansion valve respectively
Angle value is less than its maximum opening value MaxVal-ij working condition；
It the described method comprises the following steps：
Step 1, for every in system interior machine setting coding ij, wherein, the grade that i characterizes this interior machine is i-stage, 1≤i≤N,
N is whole interior machine number of degrees；It is machine in jth platform in i-stage that j, which characterizes this interior machine, and 1≤j≤Mi, Mi possess for i-stage
Interior machine number；
Step 2, the minimum opening value MinVal-ij and maximum opening value MaxVal-ij of expansion valve setting for every interior machine；
The initial value for setting i is N, and the initial value for setting j is 1；
Whether the expansion valve opening value of machine is more than or equal to its maximum opening value MaxVal-ij in step 3, the i-th j platforms of detection, is more than
Equal to then going to step 4；Less than then going to step 5；
Step 4, the expansion valve opening for reducing every interior machine in the i-th -1 grade to the 1st grade, go to step 3；
Whether j is equal to Mi in step 5, judgment step 3, is entered as j+1 not equal to then j and goes to step 3；Equal to then going to step
6；
Step 6, by the current expansion valve opening value record of every interior machine in the i-th -1 grade to the 1st grade it is respectively that the interior machine is new most
Big opening value MaxVal；I is entered as i-1, j and is entered as 1, goes to step 7；
Step 7, judge whether i is equal to 1, equal to then going to step 8；Not equal to then going to step 3；
Step 8, EP (end of program).
2. machine control method in multi-online air-conditioning system according to claim 1, it is characterised in that by reducing inferior grade
The expansion valve opening of interior machine high-grade interior machine expansion valve opening value is less than its maximum opening value MaxVal-ij.
3. machine control method in multi-online air-conditioning system according to claim 1, it is characterised in that in step 3, reduce
The method of the expansion valve opening of every interior machine is in the i-th -1 grade to the 1st grade：By the expansion of every interior machine in the i-th -1 grade to the 1st grade
Valve opening value is adjusted to K times of currency, wherein, 0 ＜ K ＜ 1.
4. machine control method in multi-online air-conditioning system according to claim 3, it is characterised in that different grades of interior machine
Corresponding K values are different.
5. machine control method in multi-online air-conditioning system according to claim 4, it is characterised in that the lower grade of interior machine
Then corresponding K values are smaller.
6. machine control method in multi-online air-conditioning system according to claim 1 or 2, it is characterised in that swollen when interior machine
Swollen valve opening value is then no longer adjusted when being minimum opening value.
7. machine control method in multi-online air-conditioning system according to claim 1 or 2, it is characterised in that when system again
After starting shooting or restarting, then the expansion valve that system controller detects every interior machine successively according to the order of grade from high to low again is
It is no to be operated in maximum opening value.
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| CN105588273B (en) * | 2015-09-30 | 2018-10-09 | 青岛海信日立空调系统有限公司 | A kind of aperture control method, indoor unit, outdoor unit and the air-conditioning of electric expansion valve |
| CN108253589B (en) * | 2018-01-03 | 2020-11-06 | 广东美的暖通设备有限公司 | Energy-saving control method and device for multi-split air conditioning system and storage medium |
| CN109458698A (en) * | 2018-11-08 | 2019-03-12 | 珠海格力电器股份有限公司 | Air-conditioning defrosting method and air-conditioning |
| CN111397119A (en) * | 2020-03-20 | 2020-07-10 | 青岛海信日立空调系统有限公司 | Multi-split air conditioner |
| CN112303845B (en) * | 2020-09-30 | 2022-10-28 | 青岛海尔空调电子有限公司 | Multi-split air conditioner and control method and control device thereof |
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| CN101191644A (en) * | 2006-11-29 | 2008-06-04 | 海尔集团公司 | Multi-split air conditioner coolant flow quantity intelligent dispensing system and its method |
| CN103423835A (en) * | 2012-04-24 | 2013-12-04 | 杭州三花研究院有限公司 | Control method of vehicle air-conditioning system and vehicle air-conditioning system |
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| JPH03286946A (en) * | 1990-03-31 | 1991-12-17 | Toshiba Corp | Duct type air-conditioner |
| KR20020031367A (en) * | 2002-03-26 | 2002-05-01 | 윤대성 | The air condition system using enthalpy in a outsider temperature |
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| CN101191644A (en) * | 2006-11-29 | 2008-06-04 | 海尔集团公司 | Multi-split air conditioner coolant flow quantity intelligent dispensing system and its method |
| CN103423835A (en) * | 2012-04-24 | 2013-12-04 | 杭州三花研究院有限公司 | Control method of vehicle air-conditioning system and vehicle air-conditioning system |
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