CN104566859B - Anti-freezing control method and device for air conditioning unit - Google Patents
Anti-freezing control method and device for air conditioning unit Download PDFInfo
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- CN104566859B CN104566859B CN201410823206.4A CN201410823206A CN104566859B CN 104566859 B CN104566859 B CN 104566859B CN 201410823206 A CN201410823206 A CN 201410823206A CN 104566859 B CN104566859 B CN 104566859B
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- 238000000034 method Methods 0.000 title claims abstract description 41
- 238000007710 freezing Methods 0.000 title claims abstract description 31
- 238000004378 air conditioning Methods 0.000 title abstract description 8
- 230000002528 anti-freeze Effects 0.000 claims description 96
- 239000002826 coolant Substances 0.000 claims description 53
- 230000008014 freezing Effects 0.000 claims description 23
- 238000001514 detection method Methods 0.000 claims description 19
- 239000003507 refrigerant Substances 0.000 claims description 6
- 108010053481 Antifreeze Proteins Proteins 0.000 claims 1
- 230000009467 reduction Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 230000006870 function Effects 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000004148 unit process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an anti-freezing control method and device for an air conditioning unit. The anti-freezing control method of the air conditioning unit comprises the following steps: detecting whether the air conditioning unit meets an anti-freezing opening condition or not when the air conditioning unit is in a state of being shut down and the automatic anti-freezing function is opened; if the air conditioning unit meets the anti-freezing opening condition, respectively acquiring the accumulated running time of the plurality of compressors; determining the compressor with the least accumulated running time; and controlling the compressor with the least accumulated running time to start and enter the anti-freezing protection. By the invention, the effect of avoiding the reduction of the service life of the compressor due to anti-freezing protection is achieved.
Description
Technical field
The present invention relates to field of air conditioning, in particular to the antifreeze control method and device of a kind of air-conditioner set.
Background technology
At present, air-conditioner set generally all has antifreeze function, for protecting air-conditioner set to avoid in the very low feelings of temperature
Freezing air-conditioner set under condition.
However, it is found by the inventors that, for multi-compressor or multisystem air conditioner unit, in the case of power-off, such as
Fruit meets antifreeze condition, then multi-compressor or multisystem open antifreeze simultaneously, and water temperature rises fast so antifreeze process is tied quickly
Beam, i.e. compressor are closed quickly after opening.On the one hand this kind of antifreeze control mode causes the high frequent start and stop of system；It is another
Aspect increases the total run time of compressor, and too fast consumption compressor shortens the service life of compressor, reduces its reliability
Property.
For the problem for reducing the service life of compressor due to anti-frost protection in the prior art, not yet propose at present effective
Solution.
The content of the invention
Antifreeze control method and device it is a primary object of the present invention to provide a kind of air-conditioner set, to solve existing skill
The problem of the service life of compressor is reduced in art due to anti-frost protection.
To achieve these goals, one side according to embodiments of the present invention, there is provided a kind of air-conditioner set it is antifreeze
Control method.The antifreeze control method of air-conditioner set of the invention includes：It is in the air-conditioner set and is shut down and automatic
In the state of antifreeze function is opened, detect whether the air-conditioner set meets antifreeze unlocking condition；If detecting it is the sky
Adjust unit to meet antifreeze unlocking condition, then obtain the accumulated running time of the multiple compressor respectively；Determine accumulative operation
Time minimum compressor；And control accumulated running time minimum compressor start and enter anti-frost protection.
Further, after the compressor start and entrance anti-frost protection for controlling the accumulated running time minimum, institute
Stating antifreeze control method also includes：Detect operation shape of the accumulated running time minimum compressor during anti-frost protection
State；According to the running status judge the accumulated running time minimum compressor whether disorderly closedown；And if it is determined that
Go out the accumulated running time minimum compressor fault to shut down, then when controlling in the multiple compressor except the accumulative operation
Between outside minimum compressor accumulated running time minimum compressor enter anti-frost protection.
Further, detecting it is the antifreeze control method after the air-conditioner set meets antifreeze unlocking condition
Also include：Detect respectively the multiple compressor whether failure；If detecting that the multiple compressor is normal, obtain respectively
Take the accumulated running time of the multiple compressor；If detecting that the multiple compressor has failure, institute is obtained respectively
The accumulated running time of normal compressor in multiple compressors is stated, wherein it is determined that going out accumulated running time minimum compressor
Including：Determine the minimum compressor of accumulated running time in the multiple compressor；Or, determine the normal compression
Accumulated running time in machine minimum compressor.
Further, the multiple compressor includes the first compressor and the second compressor, wherein it is determined that going out accumulative operation
Time minimum compressor includes：Compare the accumulated running time of first compressor and the accumulative fortune of second compressor
The row time；Control compressor start that the accumulated running time is minimum and include into anti-frost protection：If first pressure
The accumulated running time of contracting machine less than the accumulated running time of second compressor, then controls first compressor start simultaneously
Into anti-frost protection；If the accumulated running time of first compressor is more than the accumulative operation of second compressor
Between, then control second compressor start and enter anti-frost protection.
Further, first compressor belongs to the first coolant circulating system, and it is cold that second compressor belongs to second
Matchmaker's circulatory system, wherein, it is that the antifreeze control method is also after the air-conditioner set meets antifreeze unlocking condition detecting
Including：Detect respectively first coolant circulating system and second coolant circulating system whether failure；If detecting institute
State the first coolant circulating system and second coolant circulating system is normal, then obtain the accumulative of first compressor respectively
The accumulated running time of run time and second compressor；If detecting the first coolant circulating system failure,
Control second coolant circulating system to enter anti-frost protection, start second compressor；If detecting that described second is cold
Matchmaker's circulatory system failure, then control first coolant circulating system to enter anti-frost protection, starts first compressor.
To achieve these goals, another aspect according to embodiments of the present invention, there is provided a kind of air-conditioner set it is antifreeze
Control device.The freezing protection control device of air-conditioner set of the invention includes：First detection unit, in the air conditioner
Group detects whether the air-conditioner set meets antifreeze unlocking condition in the state of shutdown and the unlatching of automatic freezing-protective function；The
One acquiring unit, if being that the air-conditioner set meets antifreeze unlocking condition for detecting, obtains the multiple pressure respectively
The accumulated running time of contracting machine；Determining unit, for determining accumulated running time minimum compressor；And first control it is single
Unit, for the compressor start for controlling the accumulated running time minimum and enters anti-frost protection.
Further, the freezing protection control device also includes：Second detection unit, for when the accumulative operation is controlled
Between minimum compressor start and enter after anti-frost protection, detect the accumulated running time minimum compressor in antifreeze guarantor
Running status during shield；Judging unit, for judging the accumulated running time minimum pressure according to the running status
Contracting machine whether disorderly closedown；And second control unit, for if it is judged that the accumulated running time minimum compressor
Disorderly closedown, then control in the multiple compressor the accumulated running time in addition to the accumulated running time minimum compressor
Minimum compressor enters anti-frost protection.
Further, the freezing protection control device also includes：3rd detection unit, for detecting it is the air conditioner
Group is met after antifreeze unlocking condition, detect respectively the multiple compressor whether failure；Second acquisition unit, if for examining
Measure that the multiple compressor is normal, then obtain the accumulated running time of the multiple compressor respectively；If detecting institute
State multiple compressors and there is failure, then obtain the accumulated running time of normal compressor in the multiple compressor respectively, its
In, the determining unit includes：First determining module, for determining the multiple compressor in accumulated running time it is minimum
Compressor, or, determine accumulated running time in the normal compressor minimum compressor.
Further, the multiple compressor includes the first compressor and the second compressor, wherein, the determining unit bag
Include：Second determining module, for comparing the accumulated running time of first compressor and the accumulative fortune of second compressor
The row time；First control unit includes：Control module, if be less than for the accumulated running time of first compressor
The accumulated running time of second compressor, then control first compressor start and enter anti-frost protection；If described
The accumulated running time of the first compressor more than the accumulated running time of second compressor, then controls second compressor
Start and enter anti-frost protection.
Further, first compressor belongs to the first coolant circulating system, and it is cold that second compressor belongs to second
Matchmaker's circulatory system, wherein, the freezing protection control device also includes：4th detection unit, for detecting it is the air conditioner
Group is met after antifreeze unlocking condition, detects whether are first coolant circulating system and second coolant circulating system respectively
Failure；3rd acquiring unit, if equal for detecting first coolant circulating system and second coolant circulating system
Normally, then the accumulated running time of first compressor and the accumulated running time of second compressor are obtained respectively；The
Three control units, if for detecting the first coolant circulating system failure, controlling second coolant circulating system
Into anti-frost protection, start second compressor；If detecting the second coolant circulating system failure, control is described
First coolant circulating system enters anti-frost protection, starts first compressor.
According to embodiments of the present invention, air-conditioner set is controlled many in the case where off-mode is detected and meets antifreeze condition
Accumulated running time minimum compressor start and enter anti-frost protection in individual compressor, other compressors then continue to remain turned-off
State, so, anti-frost protection is launched into without each compressor, so as to keep compressor operating time balanced, it is to avoid by
In anti-frost protection so that the long service life for causing the compressor of the run time of wherein certain compressor is reduced, solve existing
Have in technology due to anti-frost protection reduction compressor service life problem, reached and avoided being compressed due to anti-frost protection reduction
The effect of machine service life.
Brief description of the drawings
The accompanying drawing for constituting the part of the application is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate, for explaining the present invention, not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the flow chart of the antifreeze control method of air-conditioner set according to embodiments of the present invention；
Fig. 2 is the flow chart of preferred antifreeze control method according to embodiments of the present invention；And
Fig. 3 is the schematic diagram of the freezing protection control device of air-conditioner set according to embodiments of the present invention.
Specific embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the embodiment of the present invention
Accompanying drawing, is clearly and completely described to the technical scheme in the embodiment of the present invention, it is clear that described embodiment is only
The embodiment of a part of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, should all belong to the model of present invention protection
Enclose.
It should be noted that term " first ", " in description and claims of this specification and above-mentioned accompanying drawing
Two " it is etc. for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so using
Data can exchange in the appropriate case, so as to embodiments of the invention described herein.Additionally, term " including " and " tool
Have " and their any deformation, it is intended that covering is non-exclusive to be included, for example, containing series of steps or unit
Process, method, system, product or equipment are not necessarily limited to those steps clearly listed or unit, but may include without clear
It is listing to Chu or for these processes, method, product or other intrinsic steps of equipment or unit.
The embodiment of the invention provides a kind of antifreeze control method of air-conditioner set.Wherein, air-conditioner set includes multiple pressure
Contracting machine, the unit can be single system multiple compressors unit, or multisystem multiple compressors unit, such as it is double
System unit.Multiple compressors in air-conditioner set after each run terminates, when counting the accumulative operation of each compressor
Between.The antifreeze control method of the present embodiment is mainly used in air-conditioner set anti-frost protection in the power-offstate.
Fig. 1 is the flow chart of the antifreeze control method of air-conditioner set according to embodiments of the present invention.As shown in figure 1, the sky
Adjusting the antifreeze control method of unit includes that step is as follows：
Step S102, in the state of air-conditioner set is in shutdown and automatic freezing-protective function is opened, detection air-conditioner set is
It is no to meet antifreeze unlocking condition.
Step S104, if it is that air-conditioner set meets antifreeze unlocking condition to detect, obtains multiple compressors respectively
Accumulated running time.
Step S106, determines accumulated running time minimum compressor.
Step S108, control accumulated running time minimum compressor start simultaneously enters anti-frost protection.
Air-conditioner set is under off-mode, detects whether to meet antifreeze condition, if it is satisfied, then opening anti-frost protection.
Specifically, the accumulated running time of the advance statistics of multiple compressors is first obtained respectively, during by the accumulative operation of multiple compressors
Between be compared respectively, determine accumulated running time minimum compressor, control the compressor start to run, and enter antifreeze
The working condition of protection, other compressors then continue to remain off.Wherein, if accumulated running time minimum compressor
There is multiple, then can randomly choose wherein any one compressor, control it to start, and enter anti-frost protection.
According to embodiments of the present invention, air-conditioner set is controlled many in the case where off-mode is detected and meets antifreeze condition
Accumulated running time minimum compressor start and enter anti-frost protection in individual compressor, other compressors then continue to remain turned-off
State, so, anti-frost protection is launched into without each compressor, so as to keep compressor operating time balanced, it is to avoid by
In anti-frost protection so that the long service life for causing the compressor of the run time of wherein certain compressor is reduced, solve existing
Have in technology due to anti-frost protection reduction compressor service life problem, reached and avoided being compressed due to anti-frost protection reduction
The effect of machine service life.
In addition, in the embodiment of the present invention, because control accumulated running time minimum compressor enters anti-frost protection, without
Multiple compressors start simultaneously, it is to avoid cause compressor fault because high frequent starts.
Preferably, after the compressor start and entrance anti-frost protection for controlling accumulated running time minimum, antifreeze control
Method includes：Running status of the detection accumulated running time minimum compressor during anti-frost protection；According to running status
Judge accumulated running time minimum compressor whether disorderly closedown；And if it is judged that accumulated running time minimum compression
Machine disorderly closedown, then control in multiple compressors that accumulated running time is minimum in addition to accumulated running time minimum compressor
Compressor enters anti-frost protection.
After the compressor start and entrance anti-frost protection for controlling accumulated running time minimum, in anti-frost protection process
In compressor carry out condition monitoring, and judge whether it breaks down, if there is disorderly closedown, and anti-frost protection people
Remain unfulfilled, then the accumulated running time in addition to the compressor of above-mentioned failure is determined from the multiple compressors for getting
Minimum compressor, and control the compressor start to run, into anti-frost protection.If do not broken down, proceed inspection
Survey, until anti-frost protection terminates.
If it should be noted that in addition to the compressor of disorderly closedown, only one of which compressor, the then compressor
It is considered accumulated running time in addition to the compressor of above-mentioned failure minimum compressor, then directly controls its to start fortune
OK.
In the embodiment of the present invention, after control compressor start operation, its running status is detected, in its appearance
During failure, the compressor start for controlling accumulated running time in other compressors minimum runs and carries out anti-frost protection, both ensures
Air-conditioner set normal anti-frost protection, ensure that the equilibrium assignment of compressor operating time again.
Preferably, detecting it is that antifreeze control method includes after air-conditioner set meets antifreeze unlocking condition：Examine respectively
Survey multiple compressors whether failure；If detecting that multiple compressors are normal, when obtaining the accumulative operation of multiple compressors
Between；If detecting that multiple compressors have failure, the accumulated running time of normal compressor in multiple compressors is obtained,
Wherein it is determined that go out accumulated running time minimum compressor including：Accumulated running time is minimum in determining multiple compressors
Compressor；Or, determine accumulated running time in normal compressor minimum compressor.
After detecting that air-conditioner set meets anti-frost protection unlocking condition, the state of multiple compressors can be first detected, sentenced
Disconnected compressor whether there is failure, if not having faulty compressor, the accumulated running time of compressor be obtained respectively；Conversely,
Then obtain the accumulated running time of the compressor outside the compressor of failure.Then determined from the accumulated running time for obtaining
Accumulated running time minimum compressor.
If it should be noted that air-conditioner set for multisystem multi-compressor unit, wherein, each system correspondence one
Compressor, then can be same as described above with detecting system state, principle, does not repeat here.
According to embodiments of the present invention, by first carrying out fault detect to compressor, it is to avoid the compressor of subsequently selected startup
It is the compressor of failure, it is ensured that anti-frost protection is normally carried out.
In the embodiment of the present invention, multiple compressors include the first compressor and the second compressor, wherein it is determined that going out accumulative fortune
Row time minimum compressor includes：Compare the first compressor accumulated running time and the second compressor accumulative operation when
Between；Control accumulated running time minimum compressor start simultaneously includes into anti-frost protection：If the accumulative fortune of the first compressor
The row time less than the accumulated running time of the second compressor, then controls the first compressor start and enters anti-frost protection；If the
The accumulated running time of one compressor more than the accumulated running time of the second compressor, then controls the second compressor start and enters
Anti-frost protection.
By taking dual system unit as an example, wherein, the first compressor belongs to the first system, and the second compressor belongs to second system,
Determine that accumulated running time minimum compressor can be by the accumulated running time of the first compressor in the embodiment of the present invention
Accumulated running time with the second compressor is compared, if the accumulated running time of the first compressor is few, controls first
Compressor start, the second compressor is remained turned-off；Conversely, then controlling the second compressor start, the first compressor is remained turned-off.
Below by taking dual system unit as an example, the embodiment of the present invention is described with reference to Fig. 2.Wherein, air-conditioner set includes
First coolant circulating system and the second coolant circulating system, wherein, the first compressor belongs to the first coolant circulating system, the second pressure
Contracting machine belongs to the second coolant circulating system.
As shown in Fig. 2 the antifreeze control method includes that step is as follows：
Step S202, display board shutdown.Under off-mode, display board opens automatic freezing-protective function, and unit has automatic
Antifreeze operation function.
Whether step S204, detection automatic freezing-protective function opens.If opened, step S206 is performed, conversely, then continuing
Detection.
Step S206, detects whether to meet antifreeze condition.If meeting antifreeze condition, step S208 is performed, conversely, then
Continue to detect.
Step S208, the whether equal fault-free of two systems.
Specifically, detecting it is after air-conditioner set meets antifreeze unlocking condition, the first refrigerant circulation system to be detected respectively
System and the second coolant circulating system whether failure；If detecting the first coolant circulating system and the second coolant circulating system just
Often, then step S210 is performed；If detecting the first coolant circulating system failure, step S212 is performed；If detecting
Two coolant circulating system failures, then perform step S214.
Step S210, obtains compressor accumulated running time, and judge whether the run time of the first compressor is less than the
The run time of two compressors.Specifically, the accumulative operation of the accumulated running time and the second compressor of the first compressor is obtained
Time, accumulated running time is compared, if the accumulated running time of the first compressor is accumulative less than the second compressor
Run time, then perform step S220, conversely, then performing step S216.
Step S212, determines the first system failure.
Step S214, determines second system failure.
Step S216, it is determined that during the first system failure, the second compressor operating is antifreeze.Control the second refrigerant circulation system
System enters anti-frost protection, starts the second compressor.
Step S218, if meet antifreeze exit criteria.If it is, return to step S202, conversely, then continuing executing with step
Rapid S216.
Step S220, it is determined that during the first system failure, the first compressor operating is antifreeze.Control the first refrigerant circulation system
System enters anti-frost protection, starts the first compressor.
Step S222, if meet antifreeze exit criteria.If it is, return to step S202, conversely, then continuing executing with step
Rapid S220.
Specifically, in the embodiment of the present invention, if meeting antifreeze unlocking condition, judge whether unit is faulty, this time-division
Four kinds of situations：
(1) if the equal fault-free of two systems, compares the accumulated running time of two systems compressor, if the accumulative fortune of compressor
Row time the first system<Second system, then the first system compressor turn on into antifreeze, second system compressor remains turned-off shape
State；If compressor accumulated running time the first system>Second system, then second system compressor turn on into antifreeze, first is
System compressor is remained off.Two control methods of compressor alternate run during so as to realizing antifreeze.
(2) if the first system is faulty, second system fault-free, then the unlatching of second system press is antifreeze.
(3) if the first system fault-free, second system is faulty, then the first system press is opened antifreeze.
(4) if two systems are faulty, unit cannot open antifreeze, wait fault clearance.
Wherein, if if reaching antifreeze exit criteria during antifreeze operation, unit exits antifreeze.Certain system is just antifreeze
If broken down during operation shutting down, antifreeze exit criteria is now unsatisfactory for, then another system is turned on into immediately
It is antifreeze.
The embodiment of the present invention additionally provides a kind of freezing protection control device of air-conditioner set.It should be noted that the present invention is real
The freezing protection control device for applying the air-conditioner set of example can be used for performing the antifreeze control of the air-conditioner set that the embodiment of the present invention is provided
Method processed, the air-conditioning that the antifreeze control method of the air-conditioner set of the embodiment of the present invention can also be provided by the embodiment of the present invention
The freezing protection control device of unit is performed.
Fig. 3 is the schematic diagram of the freezing protection control device of air-conditioner set according to embodiments of the present invention.As shown in figure 3, the sky
Adjusting the freezing protection control device of unit includes：First detection unit 10, first acquisition unit 20, the control of determining unit 30 and first are single
Unit 40.
First detection unit 10 is used in the state of air-conditioner set is in shutdown and automatic freezing-protective function is opened, and detection is empty
Adjust whether unit meets antifreeze unlocking condition.
If first acquisition unit 20 is used for detecting it is that air-conditioner set meets antifreeze unlocking condition, obtain respectively multiple
The accumulated running time of compressor.
Determining unit 30 is used to determine the compressor that accumulated running time is minimum.
First control unit 40 is used for the compressor start for controlling accumulated running time minimum and enters anti-frost protection.
Air-conditioner set is under off-mode, detects whether to meet antifreeze condition, if it is satisfied, then opening anti-frost protection.
Specifically, the accumulated running time of the advance statistics of multiple compressors is first obtained respectively, during by the accumulative operation of multiple compressors
Between be compared respectively, determine accumulated running time minimum compressor, control the compressor start to run, and enter antifreeze
The working condition of protection, other compressors then continue to remain off.Wherein, if accumulated running time minimum compressor
There is multiple, then can randomly choose wherein any one compressor, control it to start, and enter anti-frost protection.
According to embodiments of the present invention, air-conditioner set is controlled many in the case where off-mode is detected and meets antifreeze condition
Accumulated running time minimum compressor start and enter anti-frost protection in individual compressor, other compressors then continue to remain turned-off
State, so, anti-frost protection is launched into without each compressor, so as to keep compressor operating time balanced, it is to avoid by
In anti-frost protection so that the long service life for causing the compressor of the run time of wherein certain compressor is reduced, solve existing
Have in technology due to anti-frost protection reduction compressor service life problem, reached and avoided being compressed due to anti-frost protection reduction
The effect of machine service life.
In addition, in the embodiment of the present invention, because control accumulated running time minimum compressor enters anti-frost protection, without
Multiple compressors start simultaneously, it is to avoid cause compressor fault because high frequent starts.
Preferably, freezing protection control device also includes：Second detection unit, in the pressure for controlling accumulated running time minimum
Contracting machine starts and enters after anti-frost protection, operation of the detection accumulated running time minimum compressor during anti-frost protection
State；Judging unit, for according to running status judge accumulated running time minimum compressor whether disorderly closedown；And the
Two control units, for if it is judged that accumulated running time minimum compressor fault is shut down, then controlling multiple compressors in
Minimum compressor enters anti-frost protection accumulated running time in addition to accumulated running time minimum compressor.
After the compressor start and entrance anti-frost protection for controlling accumulated running time minimum, in anti-frost protection process
In compressor carry out condition monitoring, and judge whether it breaks down, if there is disorderly closedown, and anti-frost protection people
Remain unfulfilled, then the accumulated running time in addition to the compressor of above-mentioned failure is determined from the multiple compressors for getting
Minimum compressor, and control the compressor start to run, into anti-frost protection.If do not broken down, proceed inspection
Survey, until anti-frost protection terminates.
If it should be noted that in addition to the compressor of disorderly closedown, only one of which compressor, the then compressor
It is considered accumulated running time in addition to the compressor of above-mentioned failure minimum compressor, then directly controls its to start fortune
OK.
In the embodiment of the present invention, after control compressor start operation, its running status is detected, in its appearance
During failure, the compressor start for controlling accumulated running time in other compressors minimum runs and carries out anti-frost protection, both ensures
Air-conditioner set normal anti-frost protection, ensure that the equilibrium assignment of compressor operating time again.
Preferably, freezing protection control device also includes：3rd detection unit, for detecting that to be that air-conditioner set meets antifreeze
After unlocking condition, detect respectively multiple compressors whether failure；Second acquisition unit, if for detecting multiple compressors
It is normal, then the accumulated running time of multiple compressors is obtained respectively；If detecting that multiple compressors have failure, distinguish
The accumulated running time of normal compressor in multiple compressors is obtained, wherein it is determined that unit includes：First determining module, uses
The accumulated running time minimum compressor in multiple compressors are determined, or, determine accumulative in normal compressor
The minimum compressor of run time.
After detecting that air-conditioner set meets anti-frost protection unlocking condition, the state of multiple compressors can be first detected, sentenced
Disconnected compressor whether there is failure, if not having faulty compressor, the accumulated running time of compressor be obtained respectively；Conversely,
Then obtain the accumulated running time of the compressor outside the compressor of failure.Then determined from the accumulated running time for obtaining
Accumulated running time minimum compressor.
If it should be noted that air-conditioner set for multisystem multi-compressor unit, wherein, each system correspondence one
Compressor, then can be same as described above with detecting system state, principle, does not repeat here.
According to embodiments of the present invention, by first carrying out fault detect to compressor, it is to avoid the compressor of subsequently selected startup
It is the compressor of failure, it is ensured that anti-frost protection is normally carried out.
Preferably, multiple compressors include the first compressor and the second compressor, wherein it is determined that unit includes：Second is true
Cover half block, for comparing the accumulated running time of the first compressor and the accumulated running time of the second compressor；First control is single
Unit includes：Control module, if for the accumulated running time of the accumulated running time less than the second compressor of the first compressor,
Then control the first compressor start and enter anti-frost protection；If the accumulated running time of the first compressor is more than the second compressor
Accumulated running time, then control the second compressor start and enter anti-frost protection.
By taking dual system unit as an example, wherein, the first compressor belongs to the first system, and the second compressor belongs to second system,
Determine that accumulated running time minimum compressor can be by the accumulated running time of the first compressor in the embodiment of the present invention
Accumulated running time with the second compressor is compared, if the accumulated running time of the first compressor is few, controls first
Compressor start, the second compressor is remained turned-off；Conversely, then controlling the second compressor start, the first compressor is remained turned-off.
Preferably, the first compressor belongs to the first coolant circulating system, and the second compressor belongs to the second coolant circulating system,
Wherein, freezing protection control device also includes：4th detection unit, for detect be air-conditioner set meet antifreeze unlocking condition it
Afterwards, detect respectively the first coolant circulating system and the second coolant circulating system whether failure；3rd acquiring unit, if for examining
Measure the first coolant circulating system and the second coolant circulating system is normal, then when obtaining the accumulative operation of the first compressor respectively
Between and the second compressor accumulated running time；3rd control unit, if for detecting the first coolant circulating system failure,
Then control the second coolant circulating system to enter anti-frost protection, start the second compressor；If detecting the second coolant circulating system
Failure, then control the first coolant circulating system to enter anti-frost protection, starts the first compressor.
Specifically, in the embodiment of the present invention, if meeting antifreeze unlocking condition, judge whether unit is faulty, this time-division
Four kinds of situations：
(1) if the equal fault-free of two systems, compares the accumulated running time of two systems compressor, if the accumulative fortune of compressor
Row time the first system<Second system, then the first system compressor turn on into antifreeze, second system compressor remains turned-off shape
State；If compressor accumulated running time the first system>Second system, then second system compressor turn on into antifreeze, first is
System compressor is remained off.Two control methods of compressor alternate run during so as to realizing antifreeze.
(2) if the first system is faulty, second system fault-free, then the unlatching of second system press is antifreeze.
(3) if the first system fault-free, second system is faulty, then the first system press is opened antifreeze.
(4) if two systems are faulty, unit cannot open antifreeze, wait fault clearance.
It should be noted that for foregoing each method embodiment, in order to be briefly described, therefore it is all expressed as a series of
Combination of actions, but those skilled in the art should know, the present invention not by described by sequence of movement limited because
According to the present invention, some steps can sequentially or simultaneously be carried out using other.Secondly, those skilled in the art should also know
Know, embodiment described in this description belongs to preferred embodiment, involved action and module is not necessarily of the invention
It is necessary.
In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, and does not have the portion described in detail in certain embodiment
Point, may refer to the associated description of other embodiment.
In several embodiments provided herein, it should be understood that disclosed device, can be by another way
Realize.For example, device embodiment described above is only schematical, such as the division of described unit is only one kind
Division of logic function, can there is other dividing mode when actually realizing, such as multiple units or component can combine or can
To be integrated into another system, or some features can be ignored, or not perform.It is another, it is shown or discussed each other
Coupling or direct-coupling or communication connection can be the INDIRECT COUPLING or communication connection of device or unit by some interfaces,
Can be electrical or other forms.
The unit that is illustrated as separating component can be or may not be it is physically separate, it is aobvious as unit
The part for showing can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be according to the actual needs selected to realize the mesh of this embodiment scheme
's.
In addition, during each functional unit in each embodiment of the invention can be integrated in a processing unit, it is also possible to
It is that unit is individually physically present, it is also possible to which two or more units are integrated in a unit.Above-mentioned integrated list
Unit can both be realized in the form of hardware, it would however also be possible to employ the form of SFU software functional unit is realized.
If the integrated unit is to realize in the form of SFU software functional unit and as independent production marketing or use
When, can store in a computer read/write memory medium.Based on such understanding, technical scheme is substantially
The part for being contributed to prior art in other words or all or part of the technical scheme can be in the form of software products
Embody, the computer software product is stored in a storage medium, including some instructions are used to so that a computer
Equipment (can be personal computer, mobile terminal, server or network equipment etc.) performs side described in each embodiment of the invention
The all or part of step of method.And foregoing storage medium includes：USB flash disk, read-only storage (ROM, Read-Only Memory),
Random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disc or CD etc. are various can be stored
The medium of program code.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of antifreeze control method of air-conditioner set, it is characterised in that the air-conditioner set includes multiple compressors, wherein,
The antifreeze control method includes：
In the state of the air-conditioner set is in shutdown and automatic freezing-protective function is opened, detect whether the air-conditioner set meets
Antifreeze unlocking condition；
If it is that the air-conditioner set meets antifreeze unlocking condition to detect, the accumulative fortune of the multiple compressor is obtained respectively
The row time；
Determine accumulated running time minimum compressor；And
Control compressor start that the accumulated running time is minimum and enter anti-frost protection.
2. antifreeze control method according to claim 1, it is characterised in that the accumulated running time is minimum controlling
Compressor start simultaneously enters after anti-frost protection, and the antifreeze control method also includes：
Detect running status of the accumulated running time minimum compressor during anti-frost protection；
According to the running status judge the accumulated running time minimum compressor whether disorderly closedown；And
If it is judged that the compressor fault shutdown that the accumulated running time is minimum, then control to remove institute in the multiple compressor
State the minimum compressor of accumulated running time outside accumulated running time minimum compressor and enter anti-frost protection.
3. antifreeze control method according to claim 1, it is characterised in that detecting that to be that the air-conditioner set meets anti-
Freeze after unlocking condition, the antifreeze control method also includes：
Detect respectively the multiple compressor whether failure；
If detecting that the multiple compressor is normal, the accumulated running time of the multiple compressor is obtained respectively；
If detecting that the multiple compressor has failure, normal compressor in the multiple compressor is obtained respectively
Accumulated running time,
Wherein it is determined that go out accumulated running time minimum compressor including：Determine when adding up operation in the multiple compressor
Between minimum compressor；Or, determine accumulated running time in the normal compressor minimum compressor.
4. antifreeze control method according to claim 1, it is characterised in that the multiple compressor includes the first compressor
With the second compressor, wherein,
Determine that accumulated running time minimum compressor includes：Compare accumulated running time of first compressor and described
The accumulated running time of the second compressor；
Control compressor start that the accumulated running time is minimum and include into anti-frost protection：If first compressor
Accumulated running time less than second compressor accumulated running time, then control first compressor start and enter
Anti-frost protection；If the accumulated running time of first compressor is more than the accumulated running time of second compressor,
Control second compressor start and enter anti-frost protection.
5. antifreeze control method according to claim 4, it is characterised in that first compressor belongs to the first refrigerant and follows
Loop systems, second compressor belongs to the second coolant circulating system, wherein, it is that the air-conditioner set meets antifreeze detecting
After unlocking condition, the antifreeze control method also includes：
Detect respectively first coolant circulating system and second coolant circulating system whether failure；
If detecting that first coolant circulating system and second coolant circulating system are normal, obtain respectively described
The accumulated running time of the first compressor and the accumulated running time of second compressor；
If detecting the first coolant circulating system failure, second coolant circulating system is controlled to enter antifreeze guarantor
Shield, starts second compressor；
If detecting the second coolant circulating system failure, first coolant circulating system is controlled to enter antifreeze guarantor
Shield, starts first compressor.
6. a kind of freezing protection control device of air-conditioner set, it is characterised in that the air-conditioner set includes multiple compressors, wherein,
The freezing protection control device includes：
First detection unit, in the state of the air-conditioner set is in shutdown and automatic freezing-protective function is opened, detecting institute
State whether air-conditioner set meets antifreeze unlocking condition；
First acquisition unit, if being that the air-conditioner set meets antifreeze unlocking condition for detecting, obtains described respectively
The accumulated running time of multiple compressors；
Determining unit, for determining accumulated running time minimum compressor；And
First control unit, for the compressor start for controlling the accumulated running time minimum and enters anti-frost protection.
7. freezing protection control device according to claim 6, it is characterised in that the freezing protection control device also includes：
Second detection unit, for the compressor start and entrance anti-frost protection for controlling accumulated running time minimum it
Afterwards, running status of accumulated running time minimum compressor during anti-frost protection is detected；
Judging unit, for judging the accumulated running time minimum compressor according to the running status, whether failure is stopped
Machine；And
Second control unit, for if it is judged that the accumulated running time minimum compressor fault is shut down, then controlling institute
The minimum compressor of the accumulated running time in addition to the accumulated running time minimum compressor is stated in multiple compressors to enter
Anti-frost protection.
8. freezing protection control device according to claim 6, it is characterised in that the freezing protection control device also includes：
3rd detection unit, for detecting it is to detect described respectively after the air-conditioner set meets antifreeze unlocking condition
Multiple compressors whether failure；
Second acquisition unit, if normal for detecting the multiple compressor, obtains the multiple compressor respectively
Accumulated running time；If detecting that the multiple compressor has failure, obtain respectively in the multiple compressor just
The accumulated running time of normal compressor,
Wherein, the determining unit includes：First determining module, for determining accumulated running time in the multiple compressor
Minimum compressor, or, determine accumulated running time in the normal compressor minimum compressor.
9. freezing protection control device according to claim 6, it is characterised in that the multiple compressor includes the first compressor
With the second compressor, wherein,
The determining unit includes：Second determining module, for comparing accumulated running time of first compressor and described
The accumulated running time of the second compressor；
First control unit includes：Control module, if being less than institute for the accumulated running time of first compressor
The accumulated running time of the second compressor is stated, is then controlled first compressor start and is entered anti-frost protection；If described
The accumulated running time of one compressor more than the accumulated running time of second compressor, then controls second compressor to open
Move and enter anti-frost protection.
10. freezing protection control device according to claim 9, it is characterised in that first compressor belongs to the first refrigerant
The circulatory system, second compressor belongs to the second coolant circulating system, wherein, the freezing protection control device also includes：
4th detection unit, for detecting it is to detect described respectively after the air-conditioner set meets antifreeze unlocking condition
First coolant circulating system and second coolant circulating system whether failure；
3rd acquiring unit, if for detecting first coolant circulating system and second coolant circulating system just
Often, then the accumulated running time of first compressor and the accumulated running time of second compressor are obtained respectively；
3rd control unit, if for detecting the first coolant circulating system failure, controlling second refrigerant to follow
Loop systems enter anti-frost protection, start second compressor；If detecting the second coolant circulating system failure, control
Make first coolant circulating system and enter anti-frost protection, start first compressor.
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| CN201410823206.4A CN104566859B (en) | 2014-12-22 | 2014-12-22 | Anti-freezing control method and device for air conditioning unit |
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| CN106246525B (en) * | 2016-08-31 | 2019-02-01 | 珠海格力电器股份有限公司 | Compressor operation control method and device |
| CN106288232B (en) * | 2016-09-27 | 2018-05-18 | 珠海格力电器股份有限公司 | Air-conditioning cooling water unit system start-stop control method and system |
| CN106440588B (en) * | 2016-10-20 | 2019-06-07 | 珠海格力电器股份有限公司 | Electric appliance control method and electric appliance |
| CN109750774A (en) * | 2019-02-28 | 2019-05-14 | 北京汉能光伏技术有限公司 | A kind of photovoltaic curtain wall system and its heat dissipating method |
| CN110553345A (en) * | 2019-09-12 | 2019-12-10 | 珠海格力电器股份有限公司 | Automatic unit anti-freezing method and air conditioning system |
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