CN106196724A - Many group units stagger and enter the control method of preset state - Google Patents
Many group units stagger and enter the control method of preset state Download PDFInfo
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- CN106196724A CN106196724A CN201610613757.7A CN201610613757A CN106196724A CN 106196724 A CN106196724 A CN 106196724A CN 201610613757 A CN201610613757 A CN 201610613757A CN 106196724 A CN106196724 A CN 106196724A
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- target temperature
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- cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
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- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Defrosting Systems (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention relates to a kind of many group units stagger and enter the control method of preset state, comprise the steps: to preset the target temperature of M group unit, respectively R+ (1 1) b, R+ (2 1) b ... R+ (M 1) b；In M group unit running process, one group of unit correspondence presets a target temperature, and enters preset operating state according to respective target temperature respectively；When unit arrives cycle P on duty by turns by the duration that the target temperature preset runs, again preset the target temperature corresponding to M group unit according to described M group target temperature, and the triggering temperature preset of the last time of at least two groups of units is not equal to the triggering temperature of this last reset of its correspondence.This many groups unit stagger enter preset state control method in the case of meeting user's heat demand, equilibrium adjust each unit operation duration, reduce the wasting of resources, make equalize the service life of all units as far as possible.
Description
Technical field
The present invention relates to unit operation and control technical field, particularly relate to one, organize unit more and stagger entrance preset state
Control method.
Background technology
Large-scale heating and ventilation project employing N group source pump jointly heats and meets demand, and generally dispatches from the factory with the unit of type
Configure the most identical, use N group source pump to will appear from problems with when jointly heating the most simultaneously:
1. the N group unit of group setup simultaneously enters defrosting state, causes N group unit to stop heating and cannot meeting simultaneously
User's heat demand；
The target temperature of 2.N group group setup is identical, and when user side temperature reaches target temperature, N group unit can be simultaneously
Shut down or start, cause the unnecessary wasting of resources；
If 3. every unit being arranged different defrosting cycles, long-play under this defrosting cycle, may cause removing
The unit defrosting of frost cycle length is not clean, affects set heat exchange efficiency；The short unit defrosting of defrosting cycle is excessively frequent, reduces machine
The heating capacity of group；If unit arranges different target temperatures, each unit heating capacity is different, after long-play, unit
The compressor operating cumulative time is unequal, and long-play is by different in size for the life-span causing unit.
Summary of the invention
Based on this, it is necessary to provide a kind of many group units to stagger and enter the control method of preset state, supply meeting user
In the case of heat demand, it is to avoid all units simultaneously enter shutdown, in the case of the service life equalizing all units, as far as possible
Reduce the wasting of resources.
Its technical scheme is as follows:
A kind of many group units stagger and enter the control method of preset state, comprise the steps:
Preset the defrosting cycle of N group unit, respectively T+ (1-1) a, T+ (2-1) a ... T+ (N-1) a；
The energising of N group unit runs, one group of unit correspondence presets an above-mentioned defrosting cycle, and respectively according to respective defrosting
Cycle defrosts；
When unit arrives cycle K on duty by turns by the duration that the defrosting cycle preset runs, according to described N group defrosting cycle
Again preset the defrosting cycle corresponding to N group unit, and the defrosting cycle that the last time of at least two groups of units presets is not equal to
The defrosting cycle of this last reset of its correspondence；
Wherein, one group of unit includes at least one unit, N >=2, T for presetting defrosting cycle, a be preset interval time and
A ≠ 0, P ＞ 0.
Further below technical scheme is illustrated: wherein in an embodiment, during such as wherein b ＞ 0, minimum target
Temperature is C+ (1-1) b, and highest goal temperature is C+ (M-1) b；
When unit arrives cycle P on duty by turns by the duration that the target temperature preset runs, run by minimum target temperature
The target temperature reseted of unit be preset as C+ (M-1) b, it is each self-corresponding that the target temperature that remaining unit is reseted is respectively equal to it
The last target temperature preset deducts b；Or whenever unit arrives cycle P on duty by turns by the duration of the target temperature operation preset
Time, the target temperature that the unit run by highest goal temperature is reseted is C+ (1-1) b, the target temperature that remaining group unit is reseted
The target temperature that respectively equal to its each self-corresponding last time presets is plus b.
Wherein in an embodiment, during such as wherein b ＞ 0, minimum target temperature is C+ (M-1) b, and highest goal temperature is
C+(1-1)b；
When unit arrives cycle P on duty by turns by the duration that the target temperature preset runs, run by minimum target temperature
The target temperature reseted of unit be preset as C+ (1-1) b, it is each self-corresponding that the target temperature that remaining unit is reseted is respectively equal to it
The last target temperature preset is plus b；Or whenever unit arrives cycle P on duty by turns by the duration of the target temperature operation preset
Time, the target temperature that the unit run by highest goal temperature is reseted is C+ (M-1) b, the target temperature that remaining group unit is reseted
The target temperature that respectively equal to its each self-corresponding last time presets deducts b.
Wherein in an embodiment, when being even number such as M, the average criterion temperature of M group unit is C△1, whenever unit is pressed
When the duration that the target temperature preset runs arrives cycle P on duty by turns, the target temperature that often the group unit last time presets is heavy with this
If target temperature after is added equal to 2C△1；
When being odd number such as M, the average criterion temperature of M group unit is C△2, whenever unit is by the target temperature operation preset
When duration arrives cycle P on duty by turns, target temperature is equal to C△2The target temperature reseted of unit still for C△2, remaining group unit on one
Secondary default target temperature is added with the target temperature after this last reset equal to 2C△2。
Wherein in an embodiment, described unit is provided with the first triggering temperature entering holding state, described unit
It is c that target temperature deducts the described first difference triggering temperature of its correspondence1, c1≤0.
Wherein in an embodiment, or/and described unit also sets the second triggering temperature entering normal operating conditions, institute
The difference of the described second triggering temperature that the target temperature stating unit deducts its correspondence is c2, c2≥0。
Wherein in an embodiment, described preset difference value temperature b >=c1Or/and b >=c2。
Wherein in an embodiment, when in M group unit, as only one unit is in normal operating conditions, remaining machine
Group is in holding state, and when this unit arrives the first triggering temperature, this unit does not enter holding state, still maintains normal work
State.
Wherein in an embodiment, when in M group unit, when being in normal operating conditions such as only one group unit, when this
When unit includes at least two units, when this unit reaches target temperature, default one or the unit of more than two do not enter
Entering holding state, continue to normally work, remaining unit enters holding state.
Wherein in an embodiment, after M group unit operation arrives preset duration, the maximum between any two units
The difference of machine set compressor work accumulating time works the 5% of the cumulative time less than or equal to the machine set compressor of all units.
Wherein in an embodiment, after M group unit operation arrives preset duration, every unit maximum machine set compressor
Work accumulating time is the most equal.
Wherein in an embodiment, also comprise the steps:
Preset the target temperature of M group unit, respectively R+ (1-1) b, R+ (2-1) b ... R+ (M-1) b；
In M group unit running process, one group of unit correspondence presets a target temperature, and respectively according to respective target temperature
Degree enters preset operating state；
When unit arrives cycle P on duty by turns by the duration that the target temperature preset runs, according to described M group target temperature
Again preset the target temperature corresponding to M group unit, and the triggering temperature that the last time of at least two groups of units presets is not equal to
The triggering temperature of this last reset of its correspondence；
Wherein, one group of unit includes at least one unit, M >=2, and R is pre-set target temperature, b be preset difference value temperature and
B ≠ 0, K ＞ 0.
Wherein in an embodiment, during such as wherein a ＞ 0, the shortest defrosting cycle is T+ (1-1) a, and the longest defrosting cycle is
T+(N-1)a；
When unit arrives cycle K on duty by turns by the duration that the defrosting cycle preset runs, run by the shortest defrosting cycle
The defrosting cycle reseted of unit be preset as T+ (N-1) a, it is each self-corresponding that the defrosting cycle that remaining unit is reseted is respectively equal to it
The last defrosting cycle preset deducts a；Or whenever unit arrives cycle K on duty by turns by the duration of the defrosting cycle operation preset
Time, the defrosting cycle that the unit run by the longest defrosting cycle is reseted is preset as T+ (1-1) a, the defrosting that remaining group unit is reseted
Cycle is respectively equal to defrosting cycle that its each self-corresponding last time presets plus a.
Wherein in an embodiment, during such as wherein a ＜ 0, the shortest defrosting cycle is T+ (N-1) a, and the longest defrosting cycle is
T+(1-1)a；
When unit arrives cycle K on duty by turns by the duration that the defrosting cycle preset runs, run by the shortest defrosting cycle
The defrosting cycle reseted of unit be preset as T+ (1-1) a, it is the most corresponding that the defrosting cycle that remaining group unit is reseted is respectively equal to it
The defrosting cycle preset of last time plus a；Or whenever unit arrives cycle K on duty by turns by the duration of the defrosting cycle operation preset
Time, the defrosting cycle that the unit run by the longest defrosting cycle is reseted is T+ (N-1) a, and the defrosting cycle that remaining unit is reseted divides
The defrosting cycle Deng Yu do not preset its each self-corresponding last time deducts a.
Wherein in an embodiment, when being even number such as N, the average defrosting cycle of N group unit is T△1, whenever unit is pressed
When the duration that the defrosting cycle preset runs arrives cycle K on duty by turns, the defrosting cycle that often the group unit last time presets is heavy with this
If defrosting cycle after is added equal to 2T△1；
When being odd number such as N, the average defrosting cycle of N group unit is T△2, whenever unit is by the defrosting cycle operation preset
When duration arrives cycle K on duty by turns, defrosting cycle is equal to T△2The defrosting cycle reseted of unit still for T△2, remaining group unit on one
Secondary default defrosting cycle is added with the defrosting cycle after this last reset equal to 2T△2。
Wherein in an embodiment, when unit defrosts, also include arriving and preset accumulative defrosting time t, unit
Exit Defrost operation, enter normal operating conditions.
Wherein in an embodiment, described preset interval time a is more than or equal to presetting accumulative defrosting time t.
Wherein in an embodiment, when unit defrosts, also including arriving to preset exiting defrosting temperature, unit moves back
Go out Defrost operation, enter normal operating conditions.
Wherein in an embodiment, summation T that the defrosting cycle of N group unit is addedAlways, described cycle K >=T on duty by turnsAlways。
Wherein in an embodiment, after N group unit operation arrives preset duration, the maximum between any two units
The difference of defrosting accumulating time is less than or equal to average the 5% of the accumulating time that defrosts of all units.
Wherein in an embodiment, after N group unit operation arrives preset duration, the defrosting accumulating time of every unit
The most equal.
" first " described in the invention described above, " second " do not represent concrete quantity and order, are only used for title
Distinguish.
The beneficial effect of the invention described above:
Above-mentioned many group units stagger and enter the control method of preset state, by the target temperature of default M group unit, each machine
Group enters preset operating state according to respective target temperature respectively, and the duration run by the target temperature preset when unit arrives
During cycle P on duty by turns, again preset the target temperature corresponding to M group unit, and at least two groups of machines according to described M group target temperature
The triggering temperature that the last time of group presets is not equal to the triggering temperature of this last reset of its correspondence.This many groups unit staggers entrance in advance
If the control method of state is in the case of meeting user's heat demand, equalize heat exchanger effectiveness between each unit as far as possible；Simultaneously
Equilibrium adjusts the operation duration of each unit, reduces the wasting of resources, makes equalize the service life of all units as far as possible.
Accompanying drawing explanation
Fig. 1 is that many group units of the present invention stagger the schematic flow sheet of the control method entering preset state；
Fig. 2 is that many group units of the present invention stagger the flow process of another embodiment of the control method entering preset state
Schematic diagram figure.
Detailed description of the invention
For making the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and specific embodiment party
Formula, is described in further detail the present invention.It should be appreciated that detailed description of the invention described herein is only in order to solve
Release the present invention, do not limit protection scope of the present invention.
As in figure 2 it is shown, a kind of many group units of the present invention stagger enters the control method of preset state, including as follows
Step:
Preset the target temperature of M group unit, respectively C+ (1-1) b, C+ (2-1) b ... C+ (M-1) b；
In M group unit running process, one group of unit correspondence presets a target temperature and respectively according to respective target temperature
Degree enters preset operating state；
When unit arrives cycle P on duty by turns by the duration that the target temperature preset runs, according to described M group target temperature
Again preset the target temperature corresponding to M group unit, and the triggering temperature that the last time of at least two groups of units presets is not equal to
The triggering temperature of this last reset of its correspondence；
Wherein, one group of unit includes at least one unit, M >=2, and C is pre-set target temperature, b be preset difference value temperature and
B ≠ 0, P ＞ 0.
This many groups unit staggers and enters the control method of preset state, by the target temperature of default M group unit, each unit
(preset operating state includes entering holding state and entering normal to enter preset operating state according to respective target temperature respectively
Duty), when unit arrives cycle P on duty by turns by the duration that the target temperature preset runs, according to described M group target temperature
Again preset the target temperature corresponding to M group unit, and the triggering temperature that the last time of at least two groups of units presets is not equal to
The triggering temperature of this last reset of its correspondence.This many groups unit stagger enter preset state control method meeting user's heat supply
Under conditions of demand, equilibrium adjusts the operation duration of each unit, reduces the wasting of resources, and the service life making all units as far as possible is equal
Weighing apparatus.
Further, when being in normal operating conditions such as only one group unit, when this unit arrives target temperature, do not enter
Enter holding state, continue to normally work, to meet user's heat demand；Further, just it is in such as only one group unit
Often during duty, when this unit includes at least two units, when this unit reaches target temperature, default one or two
Unit more than platform does not enter holding state, continues to normally work, and remaining unit enters holding state, supplies meeting user
On the premise of heat demand, save electricity as far as possible, make this heating and ventilation project more environmentally-friendly energy-conservation.
Further, during such as wherein b ＞ 0, minimum target temperature is C+ (1-1) b, and highest goal temperature is C+ (M-1) b；
When unit arrives cycle P on duty by turns by the duration that the target temperature preset runs, the unit weight run by minimum target temperature
If target temperature be preset as C+ (M-1) b, it is pre-that the target temperature that remaining unit is reseted is respectively equal to its each self-corresponding last time
If target temperature deduct b；Or when unit arrives cycle P on duty by turns by the duration that the target temperature preset runs, by the highest
The target temperature that the unit that target temperature runs is reseted is C+ (1-1) b, and the target temperature that remaining group unit is reseted is respectively equal to it
The target temperature that each self-corresponding last time presets is plus b；Such as b=-5 DEG C, M=4, C=45 DEG C, defrosting cycle is 30 DEG C,
35 DEG C, 40 DEG C, 45 DEG C, when unit arrives cycle P on duty by turns by the duration that the defrosting cycle preset runs, by 30 DEG C of defrosting weeks
It is 45 DEG C that the unit that phase is run resets rear defrosting cycle, and it is 30 that the unit run by 35 DEG C of defrosting cycles resets rear defrosting cycle
DEG C, it is 35 DEG C that the unit run by 40 DEG C of defrosting cycles resets rear defrosting cycle, and the unit run by 45 DEG C of defrosting cycles is reseted
Rear defrosting cycle is 40 DEG C.Or during such as wherein b ＞ 0, minimum target temperature is C+ (M-1) b, and highest goal temperature is C+ (1-1)
b；When unit arrives cycle P on duty by turns by the duration that the target temperature preset runs, the unit run by minimum target temperature
The target temperature reseted is preset as C+ (1-1) b, and the target temperature that remaining unit is reseted is respectively equal to its each self-corresponding last time
The target temperature preset is plus b；Or when unit arrives cycle P on duty by turns by the duration that the target temperature preset runs, press
The target temperature that the unit that high target temperature runs is reseted is C+ (M-1) b, and the target temperature that remaining group unit is reseted is respectively equal to
The target temperature that its each self-corresponding last time presets deducts b；Such as b=5 DEG C, M=4, C=30 DEG C, defrosting cycle is 30 DEG C,
35 DEG C, 40 DEG C, 45 DEG C, when unit arrives cycle P on duty by turns by the duration that the defrosting cycle preset runs, by 45 DEG C of defrosting weeks
It is 30 DEG C that the unit that phase is run resets rear defrosting cycle, and it is 35 that the unit run by 30 DEG C of defrosting cycles resets rear defrosting cycle
DEG C, it is 30 DEG C that the unit run by 35 DEG C of defrosting cycles resets rear defrosting cycle, and the unit run by 40 DEG C of defrosting cycles is reseted
Rear defrosting cycle is 45 DEG C, and this cycle P on duty by turns can be configured according to user's request.Above two shift process is utilized to be easy to machine
Group is from the normal operating time of Row sum-equal matrix unit, it is to avoid after long-play, and it is unequal that the compressor operating of unit adds up duration,
Wherein the fault rate of the unit of long operational time can increase, and causes whole heating and ventilation project frequently to be keeped in repair, affects user's heat demand.
Further, after M group unit operation arrives preset duration, the maximum machine set compressor work between any two units is tired
The difference of meter used time works the 5% of the cumulative time less than or equal to the machine set compressor of all units, it is preferred that when M group unit is transported
After row arrives preset duration, every unit maximum machine set compressor work accumulating time is the most equal, and this preset duration can be on duty by turns
Cycle P is multiplied by the multiple of M group.
Further, when being even number such as M, the average criterion temperature of M group unit is C△1, whenever unit is by the target preset
The target when duration that temperature is run arrives cycle P on duty by turns, after target temperature and this last reset that often the group unit last time presets
Temperature is added equal to 2C△1；When being odd number such as M, the average criterion temperature of M group unit is C△2, whenever unit is by the target temperature preset
When the duration that degree runs arrives cycle P on duty by turns, target temperature is equal to C△2The target temperature reseted of unit still for C△2, remaining group
The target temperature that the unit last time presets is added with the target temperature after this last reset equal to 2C△2；Such as, b=5 DEG C, M=4, C
=30 DEG C, target temperature is 30 DEG C, 35 DEG C, 40 DEG C, 45 DEG C, and average criterion temperature is 37.5 DEG C, whenever unit is by the mesh preset
When the duration that mark temperature is run arrives cycle P on duty by turns, it is 30 DEG C that the unit run by 45 DEG C of target temperatures resets rear target temperature,
It is 45 DEG C that the unit run by 30 DEG C of target temperatures resets rear target temperature, and the unit run by 35 DEG C of target temperatures resets rear mesh
Mark temperature is 40 DEG C, and it is 35 DEG C that the unit run by 40 DEG C of target temperatures resets rear target temperature；In like manner, b=5 DEG C, M=4, C
=30 DEG C, target temperature is 30 DEG C, 35 DEG C, 40 DEG C, and average criterion temperature is 35 DEG C, whenever unit is by the target temperature fortune preset
When the duration of row arrives cycle P on duty by turns, it is 40 DEG C that the unit run by 30 DEG C of target temperatures resets rear target temperature, by 35 DEG C of mesh
It is 35 DEG C that the unit that mark temperature is run resets rear target temperature, and the unit run by 40 DEG C of target temperatures is reseted rear target temperature and is
30 DEG C, this cycle P on duty by turns can be configured according to user's request.Utilize above two shift process only need to adjust twice, so that it may
Equilibrium adjusts the normal operating time of unit, it is to avoid after long-play, it is unequal that the compressor operating of unit adds up duration, its
The fault rate of the unit of middle long operational time can increase, and causes whole heating and ventilation project frequently to be keeped in repair, affects user's heat demand.Again
Further, after M group unit operation arrives preset duration, the maximum machine set compressor work between any two units is accumulative
The difference of used time works the 5% of the cumulative time less than or equal to the machine set compressor of all units, it is preferred that when M group unit operation
After arriving preset duration, every unit maximum machine set compressor work accumulating time is the most equal, and this preset duration can be that wheel is on weekly duty
Phase P is multiplied by the multiple of M group.
Further, described unit is provided with the first triggering temperature entering holding state, and the target temperature of described unit subtracts
The described first difference triggering temperature going its correspondence is c1, c1≤0,；Or/and described unit also sets entrance normal operating conditions
Second triggering temperature, the target temperature of described unit deduct its correspondence described second trigger temperature difference be c2, c2>=0,
Trigger temperature by arranging the first triggering temperature and second, obtain the operation conditions judging unit in advance, with the mesh needed for user
Mark temperature contrasts, and adjusts the operation conditions of unit in time, reduces the difference variation in unit running process, improves user's body
Test；This first trigger temperature, second trigger temperature can according to the stable acquisition of predeterminated position of detection unit, as inflow temperature,
Leaving water temperature etc.；Preferably, described preset difference value temperature b >=c1Or/and b >=c2, it is to avoid the temperature difference differentiation of each unit adjusts to be lost
Effect；Further, when, in M group unit, only one unit is in normal operating conditions, and remaining unit is in holding state,
When this unit arrives the first triggering temperature, this unit does not enter holding state, still maintains normal operating conditions, to meet user
Heat demand；Further, when in M group unit, when being in normal operating conditions such as only one group unit, when this unit includes
During at least two units, when this unit reaches target temperature, default one or the unit of more than two do not enter standby shape
State, continuing to normally work, remaining unit enters holding state, on the premise of meeting user's heat demand, saves as far as possible
About electricity, makes this heating and ventilation project more environmentally-friendly energy-conservation.
As in figure 2 it is shown, many group units of the present invention stagger enters the control method of preset state, also include walking as follows
Rapid:
Preset the defrosting cycle of N group unit, respectively T+ (1-1) a, T+ (2-1) a ... T+ (N-1) a；
The energising of N group unit runs, one group of unit correspondence presets an above-mentioned defrosting cycle and respectively according to respective defrosting
Cycle defrosts；
When unit arrives cycle K on duty by turns by the duration that the defrosting cycle preset runs, according to described N group defrosting cycle
Again preset the defrosting cycle corresponding to N group unit, and the defrosting cycle that the last time of at least two groups of units presets is not equal to
The defrosting cycle of this last reset of its correspondence；
Wherein, one group of unit includes at least one unit, N >=2, T for presetting defrosting cycle, a be preset interval time and
A ≠ 0, K ＞ 0.
Above-mentioned N group unit staggers the control method carrying out defrosting, and presets N group defrosting cycle, one group of unit according to N group unit
Corresponding preset a defrosting cycle, and stagger according to respective defrosting cycle respectively and defrost, when unit is by the defrosting preset
When the duration of periodic duty arrives cycle K on duty by turns, again preset the defrosting corresponding to N group unit according to described N group defrosting cycle
Cycle, and the defrosting cycle preset of the last time of at least two groups of units is not equal to the defrosting cycle of this last reset of its correspondence.
This N group unit staggers the control method carrying out defrosting can be in the case of meeting user's heat demand, and equilibrium adjusts the accumulative of unit
Defrosting duration, equalizes heat exchanger effectiveness between each unit as far as possible.
Further, during such as wherein a ＜ 0, the shortest defrosting cycle is T+ (N-1) a, and the longest defrosting cycle is T+ (1-1) a；
When unit arrives cycle K on duty by turns by the duration that the defrosting cycle preset runs, the unit weight run by the shortest defrosting cycle
If defrosting cycle be preset as T+ (1-1) a, remaining group defrosting cycle of reseting of unit is respectively equal to its each self-corresponding last time
The defrosting cycle preset is plus a；Or when unit arrives cycle K on duty by turns by the duration that the defrosting cycle preset runs, press
The defrosting cycle that the unit that long defrosting cycle runs is reseted is T+ (N-1) a, and the defrosting cycle that remaining unit is reseted is respectively equal to it
The defrosting cycle that each self-corresponding last time presets deducts a；Such as, a=-5min, N=4, T=45min, defrosting cycle is
30min, 35min, 40min, 45min, when unit arrives cycle K on duty by turns by the duration that the defrosting cycle preset runs, press
It is 45min that the unit that 30min defrosting cycle runs resets rear defrosting cycle, after the unit run by 35min defrosting cycle is reseted
Defrosting cycle is 30min, and it is 35min that the unit run by 40min defrosting cycle resets rear defrosting cycle, by 45min defrosting week
It is 40min that the unit that phase is run resets rear defrosting cycle.Or during such as wherein a ＜ 0, the shortest defrosting cycle is T+ (N-1) a, the longest
Defrosting cycle is T+ (1-1) a；When unit arrives cycle K on duty by turns by the duration that the defrosting cycle preset runs, remove by the shortest
The defrosting cycle that the unit of frost periodic duty is reseted is preset as T+ (1-1) a, and the defrosting cycle that remaining group unit is reseted is respectively equal to
The defrosting cycle that its each self-corresponding last time presets is plus a；Or whenever unit by default defrosting cycle run time grow to
When reaching cycle K on duty by turns, the defrosting cycle that the unit run by the longest defrosting cycle is reseted is T+ (N-1) a, and remaining unit is reseted
Defrosting cycle be respectively equal to its each self-corresponding last time preset defrosting cycle deduct a；Such as a=5min, N=4, T=
30min, defrosting cycle is 30min, 35min, 40min, 45min, whenever unit by default defrosting cycle run time grow to
When reaching cycle K on duty by turns, it is 30min that the unit run by 45min defrosting cycle resets rear defrosting cycle, by 30min defrosting cycle
It is 35min that the unit run resets rear defrosting cycle, and the unit run by 35min defrosting cycle is reseted rear defrosting cycle and is
30min, it is 45min that the unit run by 40min defrosting cycle resets rear defrosting cycle, and this cycle K on duty by turns can be according to user's need
Ask and be configured, it is preferred that described cycle K >=T on duty by turnsAlways, wherein, summation T that the defrosting cycle of N group unit is addedAlways.In utilization
Stating two kinds of shift process and be easy to unit from Row sum-equal matrix defrosting cycle, after longtime running, the defrosting of unit adds up duration and is more or less the same,
The unit defrosting avoiding defrosting cycle length is clean, affect set heat exchange efficiency, the short unit defrosting of defrosting cycle excessively frequently,
Reduce the heating capacity of unit.Further, after N group unit operation arrives preset duration, between any two units
The difference of maximum defrosting accumulating time is less than or equal to average the 5% of the accumulating time that defrosts of all units；Preferably, when N group machine
Group is run after arriving preset duration, and the defrosting accumulating time of every unit is the most equal, and this preset duration can be that cycle K on duty by turns is multiplied by
The multiple of N group.
Further, when being even number such as N, the average defrosting cycle of N group unit is T△1, whenever unit is by the defrosting preset
The defrosting when duration of periodic duty arrives cycle K on duty by turns, after the defrosting cycle that often the group unit last time presets and this last reset
Cycle is added equal to 2T△1；Or as N be odd number time, the average defrosting cycle of N group unit is T△2, whenever unit is by the defrosting preset
When the duration of periodic duty arrives cycle K on duty by turns, defrosting cycle is equal to T△2The defrosting cycle reseted of unit still for T△2, remaining
The defrosting cycle that the group unit last time presets is added with the defrosting cycle after this last reset equal to 2T△2.Such as, a=5min, N=
4, T=30min, defrosting cycle is 30min, 35min, 40min, 45min, and average defrosting cycle is 37.5min, whenever unit is pressed
When the duration that the defrosting cycle preset runs arrives cycle K on duty by turns, the unit run by 45min defrosting cycle defrosts week after reseting
Phase is 30min, and it is 45min that the unit run by 30min defrosting cycle resets rear defrosting cycle, runs by 35min defrosting cycle
Unit to reset rear defrosting cycle be 40min, it is 35min that the unit run by 40min defrosting cycle resets rear defrosting cycle；With
Reason, a=5min, N=3, T=30min, defrosting cycle is 30min, 35min, 40min, and average defrosting cycle is 35min, whenever
When unit arrives cycle K on duty by turns by the duration that the defrosting cycle preset runs, after the unit run by 30min defrosting cycle is reseted
Defrosting cycle is 40min, and it is 35min that the unit run by 35min defrosting cycle resets rear defrosting cycle, by 40min defrosting week
To reset rear defrosting cycle be 30min to the unit that phase is run, and then only need to adjust twice, so that it may when equalizing each unit defrosting accumulative
Long, improve unit heat exchanger effectiveness, this cycle K on duty by turns can be configured according to user's request simultaneously, it is preferred that described take turns on weekly duty
Phase K >=TAlways, wherein, summation T that the defrosting cycle of N group unit is addedAlways.After N group unit operation arrives preset duration, any two
The difference of the maximum defrosting accumulating time between platform unit is less than or equal to average the 5% of the accumulating time that defrosts of all units；Excellent
Choosing, after N group unit operation arrives preset duration, the defrosting accumulating time of every unit is the most equal, and this preset duration can be
Cycle K on duty by turns is multiplied by the multiple of N group.
Further, also including arriving and preset accumulative defrosting time t, unit exits Defrost operation, enters the shape that normally works
State；Accumulative defrosting time t+ (1-1) d, t+ (2-1) d of N group can also be set simultaneously ... t+ (N-1) d, according to the defrosting of unit
Cycle presets corresponding accumulative defrosting time, and the accumulative defrosting time of the longest correspondence of defrosting cycle is the longest, and wherein d is accumulative for presetting
Duration；Further, described preset interval time a is more than or equal to presetting accumulative defrosting time t, it is to avoid two groups of units are simultaneously
Enter defrosting, affect heating capacity, cause Consumer's Experience the best；Further, when unit defrosts, also include arriving
Presetting and exit defrosting temperature, unit exits Defrost operation, enters normal operating conditions, can be according to self of unit by this setting
Situation adjusts defrosting time, makes unit put into normal operating conditions in time, improves the common heating capacity of unit.Need explanation
Be, when arrange simultaneously preset accumulative defrosting time t and preset defrosting temperature time, first trigger such as unit and preset accumulative defrosting time t
Then enter normal operating conditions, first trigger such as unit and preset defrosting temperature, then enter normal operating conditions.
In the specific embodiment of the present invention, N=5, M=3, each unit can be carried out according to defrosting cycle and target temperature respectively
Run, and can require to modify according to user, separately can set defrosting cycle or target temperature and run as preferred rank.
As, to preset defrosting cycle T and be set to 40min, preset interval time is set to 5min, then the defrosting cycle of each unit will
Can set as follows:
Cycle K on duty by turns is set to 10, then unit operation defrosting cycle after 10 days becomes:
As, pre-set target temperature C is set to 20 DEG C, and preset difference value temperature b is 1 DEG C, then the target temperature of each unit will
Following setting:
Cycle P on duty by turns is set to 10, then unit operation target temperature after 10 days becomes:
Beneficial effects of the present invention:
1, unit parameter arranges conveniently, and only need to be respectively provided with 2 parameters just can determine that the defrosting cycle of multiple stage unit, target
Temperature, is configured one by one without on every unit；
2, avoid relatively multicomputer and simultaneously enter defrosting, user can be effectively ensured and continue the demand of heat supply；
3, avoid relatively multicomputer and simultaneously enter constant temperature shutdown, effectively reduce unnecessary energy waste；
4, defrosting cycle/target heats temperature and distributes in turn, it is ensured that the working time of long-time each the unit used
And workload is more or less the same, make the equilibrium as far as possible of each unit durability length.
Each technical characteristic of embodiment described above can combine arbitrarily, for making description succinct, not to above-mentioned reality
The all possible combination of each technical characteristic executed in example is all described, but, as long as the combination of these technical characteristics is not deposited
In contradiction, all it is considered to be the scope that this specification is recorded.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed, but also
Can not therefore be construed as limiting the scope of the patent.It should be pointed out that, come for those of ordinary skill in the art
Saying, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement, these broadly fall into the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. one kind more organize unit stagger enter preset state control method, it is characterised in that comprise the steps:
Preset the target temperature of M group unit, respectively R+ (1-1) b, R+ (2-1) b ... R+ (M-1) b；
In M group unit running process, one group of unit correspondence presets a target temperature, and enters according to respective target temperature respectively
Enter preset operating state；
When unit arrives cycle P on duty by turns by the duration that the target temperature preset runs, according to described M group target temperature again
Preset target temperature corresponding to M group unit, and last time of at least two groups of units default triggering temperature to be not equal to it right
The triggering temperature of this last reset answered；
Wherein, one group of unit includes at least one unit, M >=2, and R is pre-set target temperature, b be preset difference value temperature and b ≠
0, P ＞ 0.
Many group units the most according to claim 1 stagger and enter the control method of preset state, it is characterised in that as wherein
During b ＞ 0, minimum target temperature is R+ (1-1) b, and highest goal temperature is R+ (M-1) b；
When unit arrives cycle P on duty by turns by the duration that the target temperature preset runs, the machine run by minimum target temperature
The target temperature that group is reseted is preset as R+ (M-1) b, the target temperature that remaining unit is reseted be respectively equal to its each self-corresponding upper one
Secondary default target temperature deducts b；Or when unit arrives cycle P on duty by turns by the duration that the target temperature preset runs, press
The target temperature reseted of unit that highest goal temperature is run is R+ (1-1) b, and the target temperature that remaining group unit is reseted is respectively etc.
The target temperature preset in its each self-corresponding last time adds b.
Many group units the most according to claim 1 stagger and enter the control method of preset state, it is characterised in that as wherein
During b ＞ 0, minimum target temperature is R+ (M-1) b, and highest goal temperature is R+ (1-1) b；
When unit arrives cycle P on duty by turns by the duration that the target temperature preset runs, the machine run by minimum target temperature
The target temperature that group is reseted is preset as R+ (1-1) b, the target temperature that remaining unit is reseted be respectively equal to its each self-corresponding upper one
Secondary default target temperature adds b；Or when unit arrives cycle P on duty by turns by the duration that the target temperature preset runs, press
The target temperature reseted of unit that highest goal temperature is run is R+ (M-1) b, and the target temperature that remaining group unit is reseted is respectively etc.
The target temperature preset in its each self-corresponding last time deducts b.
Many group units the most according to claim 1 stagger and enter the control method of preset state, it is characterised in that as M is
During even number, the average criterion temperature of M group unit is R△1, the duration run by the target temperature preset whenever unit arrives on duty by turns
During cycle P, the target temperature that often the group unit last time presets is added with the target temperature after this last reset equal to 2R△1；
When being odd number such as M, the average criterion temperature of M group unit is R△2, whenever the duration that unit is run by the target temperature preset
When arriving cycle P on duty by turns, target temperature is equal to R△2The target temperature reseted of unit still for R△2, remaining group unit is last pre-
If target temperature be added equal to 2R with the target temperature after this last reset△2。
Many group units the most according to claim 1 stagger and enter the control method of preset state, it is characterised in that described machine
Group is provided with the first triggering temperature entering holding state, and the target temperature of described unit deducts described the first of its correspondence and triggers warm
The difference of degree is c1, c1≤0。
Many group units the most according to claim 5 stagger and enter the control method of preset state, it is characterised in that or/and
Described unit also sets the second triggering temperature entering normal operating conditions, and the target temperature of described unit deducts the described of its correspondence
Second difference triggering temperature is c2, c2≥0。
Many group units the most according to claim 6 stagger and enter the control method of preset state, it is characterised in that described pre-
If differential temperature b >=c1Or/and b >=c2。
Many group units the most according to claim 1 stagger and enter the control method of preset state, it is characterised in that when M group
In unit, as only one unit is in normal operating conditions, remaining unit is in holding state, touches when this unit arrives first
When sending out temperature, this unit does not enter holding state, still maintains normal operating conditions.
Many group units the most according to claim 1 stagger and enter the control method of preset state, it is characterised in that when M group
In unit, when being in normal operating conditions such as only one group unit, when this unit includes at least two units, when this unit reaches
During to target temperature, default one or the unit of more than two do not enter holding state, continue to normally work, remaining machine
Group enters holding state.
10. stagger according to the many groups unit described in any one of claim 1 to 9 and enter the control method of preset state, its feature
It is, also comprises the steps:
Preset the defrosting cycle of N group unit, respectively T+ (1-1) a, T+ (2-1) a ... T+ (N-1) a；
The energising of N group unit runs, one group of unit correspondence presets an above-mentioned defrosting cycle, and respectively according to respective defrosting cycle
Defrost；
When unit arrives cycle K on duty by turns by the duration that the defrosting cycle preset runs, according to described N group defrosting cycle again
Preset defrosting cycle corresponding to N group unit, and last time of at least two groups of units default defrosting cycle to be not equal to it right
The defrosting cycle of this last reset answered；
Wherein, one group of unit includes at least one unit, N >=2, T for presetting defrosting cycle, a be preset interval time and a ≠
0, K ＞ 0.
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| CN108731321A (en) * | 2017-04-25 | 2018-11-02 | 同方人工环境有限公司 | A kind of defrosting control method of air source heat pump system |
| CN110926071A (en) * | 2019-11-08 | 2020-03-27 | 广东芬尼克兹节能设备有限公司 | Intelligent defrosting control method and system for heat pump system |
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|---|---|
| CN106196724B (en) | 2018-09-28 |
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