CN110375469A - A kind of frequency conversion overlapping machine control method, device, equipment and storage medium - Google Patents
A kind of frequency conversion overlapping machine control method, device, equipment and storage medium Download PDFInfo
- Publication number
- CN110375469A CN110375469A CN201910547615.9A CN201910547615A CN110375469A CN 110375469 A CN110375469 A CN 110375469A CN 201910547615 A CN201910547615 A CN 201910547615A CN 110375469 A CN110375469 A CN 110375469A
- Authority
- CN
- China
- Prior art keywords
- temperature
- frequency
- seconds
- condensation
- evaporating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- F25B13/00—Compression machines, plants or systems, with reversible cycle
-
- 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
-
- 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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- 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
- F25B7/00—Compression machines, plants or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next circuit
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of frequency conversion overlapping machine control method, device, equipment and storage mediums, including open frequency conversion overlapping machine, if feed liquor temperature≤set temperature-return difference temperature, starts the invariable frequency compressor of high temperature side, start the frequency-changeable compressor of low temperature side after 15 seconds；The frequency-changeable compressor raising frequency of low temperature side is run 60 seconds to 30Hz；The frequency-changeable compressor of low temperature side is according to evaporating temperature making frequency adjustment；The frequency-changeable compressor of low temperature side carries out condensation frequency limit according to condensation temperature；When receiving stopping signal, first stop the invariable frequency compressor of high temperature side, stops the frequency-changeable compressor of low temperature side after a period of time again；It can effectively ensure that frequency conversion overlapping machine system operates normally, and save efficiency.
Description
Technical field
The present invention relates to air conditioner controlling technology field, in particular to a kind of frequency conversion overlapping machine control method, device, equipment and
Storage medium.
Background technique
With the improvement of living standards, clean energy resource is required higher and higher.Heat pump has been widely applied to life heat now
Water, the fields such as heating, and application range constantly expands.Although heat pump has many advantages, such as safety, cleaning, itself is deposited
Temperature can not be heated to very high temperature in certain limitation, such as single-stage compressor, general hot water machine is all heated to
55 DEG C or so.So needing special design heat pump in the application places for needing high temperature heat source, the heat pump of double-stage heating form is just answered
It transports and gives birth to.
If two-stage be all using invariable frequency compressor, due to press cannot frequent start and stop, conventional way is at least 3 points
Press can be just again started up after clock.Frequent starting not only shortens the compressor service life, and also waste electric energy causes power grid impact to influence
The normal use of other electric appliances.If avoiding frequent starting, the design of system is very accurate, increases the difficulty of system design
Degree.If two-stage all uses frequency-changeable compressor, although high frequent is resolved the problem of starting, intuitively may be used very much
To see that automatically controlled cost can greatly increase.So having selected a kind of optimal mode, low temperature side uses frequency-changeable compressor, high
Warm side uses invariable frequency compressor.This mode is either all reduced in automatically controlled cost or system design.
It needs to design corresponding control method for the system at present, to reach guarantee system normal operation, save simultaneously
Efficiency.
Summary of the invention
It is an object of the invention at least solve one of the technical problems existing in the prior art, a kind of frequency conversion overlapping is provided
Machine control method, device, equipment and storage medium can effectively ensure that frequency conversion overlapping machine system operates normally, and save energy
Effect.
The first aspect of the present invention provides a kind of frequency conversion overlapping machine control method, comprising the following steps:
Frequency conversion overlapping machine is opened, if feed liquor temperature≤set temperature-return difference temperature, starts the invariable frequency compressor of high temperature side,
Start the frequency-changeable compressor of low temperature side after 15 seconds；
The frequency-changeable compressor raising frequency of low temperature side is run 60 seconds to 30Hz；
The frequency-changeable compressor of low temperature side is according to evaporating temperature making frequency adjustment: if evaporating temperature is in evaporation target setting
Within the scope of temperature ± 1 DEG C, primary frequency operation is maintained；If temperature >=-1 DEG C is arranged in evaporating temperature-evaporation target, operation frequency is increased
Rate；If temperature >=1 DEG C is arranged in evaporating temperature-evaporation target, running frequency is reduced；
The frequency-changeable compressor of low temperature side carries out condensation frequency limit according to condensation temperature: if condensation temperature >=condensation temperature frequency limit temperature
Degree, into frequency limit state, the frequency-changeable compressor of low temperature side no longer raising frequency, the frequency-changeable compressor of low temperature side reduces frequency operation；
If condensation temperature drops to less than condensation temperature frequency limit temperature after the frequency-changeable compressor of low temperature side reduces frequency operation,
Current frequency is then maintained, exits condensation frequency limit, the frequency-changeable compressor of low temperature side is again according to evaporating temperature making frequency adjustment；
When receiving stopping signal, first stop the invariable frequency compressor of high temperature side, stops the frequency conversion pressure of low temperature side after a period of time again
Contracting machine.
A kind of frequency conversion overlapping machine control method according to a first aspect of the present invention, if the evaporating temperature-evaporation mesh
Mark setting temperature >=-1 DEG C, then increase running frequency, comprising:
If temperature >=-15 DEG C are arranged in evaporating temperature-evaporation target, running frequency every five seconds adds 1Hz；
If temperature >=-10 DEG C are arranged in evaporating temperature-evaporation target, add 1Hz within running frequency every 10 seconds；
If temperature >=-5 DEG C are arranged in evaporating temperature-evaporation target, add 1Hz within running frequency every 30 seconds；
If temperature >=-3 DEG C are arranged in evaporating temperature-evaporation target, add 1Hz within running frequency every 50 seconds；
If temperature >=-1 DEG C is arranged in evaporating temperature-evaporation target, add 1Hz within running frequency every 120 seconds；
If temperature >=1 DEG C is arranged in the evaporating temperature-evaporation target, running frequency is reduced, comprising:
If temperature >=1 DEG C is arranged in evaporating temperature-evaporation target, subtract 1Hz within running frequency every 60 seconds；
If temperature >=2 DEG C are arranged in evaporating temperature-evaporation target, subtract 1Hz within running frequency every 40 seconds；
If temperature >=3 DEG C are arranged in evaporating temperature-evaporation target, subtract 1Hz within running frequency every 30 seconds；
If temperature >=4 DEG C are arranged in evaporating temperature-evaporation target, subtract 1Hz within running frequency every 10 seconds；
If temperature >=5 DEG C are arranged in evaporating temperature-evaporation target, running frequency every five seconds subtracts 1Hz.
A kind of frequency conversion overlapping machine control method according to a first aspect of the present invention, if the condensation temperature >=condensation temperature
Frequency limit temperature is spent, the frequency-changeable compressor into frequency limit state, the frequency-changeable compressor of low temperature side no longer raising frequency, low temperature side reduces frequency
Operation, comprising:
If condensation temperature=condensation temperature frequency limit temperature, primary frequency operation is maintained；
If condensation temperature >=+1 DEG C of temperature of condensation temperature frequency limit, and condensation temperature does not decline, then subtracts within running frequency every 10 seconds
1Hz；
If condensation temperature >=+2 DEG C of temperature of condensation temperature frequency limit, and condensation temperature does not decline, then subtracts within running frequency every 10 seconds
2Hz；
If condensation temperature >=+3 DEG C of temperature of condensation temperature frequency limit, and condensation temperature does not decline, then subtracts within running frequency every 10 seconds
3Hz；
If condensation temperature >=+4 DEG C of temperature of condensation temperature frequency limit, and condensation temperature does not decline, then subtracts within running frequency every 10 seconds
5Hz；
If condensation temperature >=+5 DEG C of temperature of condensation temperature frequency limit, and condensation temperature does not decline, then subtracts within running frequency every 10 seconds
10Hz。
A kind of frequency conversion overlapping machine control method according to a first aspect of the present invention, further comprising the steps of:
If detecting vapourator full foot environment temperature<20 DEG C of low temperature side, and environment temperature-coil temperature>=defrosting temperature
Difference, stops the compressor of high temperature side and low temperature side, blowing-out machine, switches four-way valve direction, and be again started up the compressor of low temperature side into
Row defrosting is more than defrosting maximum time until coil temperature is greater than defrosting to exit temperature or operation defrosting time；
Each defrosting time is recorded, if the defrosting time to defrost twice in succession above defrosts maximum time, extends next time
Defrosting time 1 minute；If the defrosting time of last time defrosting was than last shortening 30 seconds or more, 5 points of defrosting delay next time
Clock starts.
The second aspect of the present invention provides a kind of frequency conversion overlapping machine control device, comprising:
Start-up unit, if feed liquor temperature≤set temperature-return difference temperature, starts high temperature side for opening frequency conversion overlapping machine
Invariable frequency compressor, after 15 seconds start low temperature side frequency-changeable compressor；
Higher frequency unit, for running the frequency-changeable compressor raising frequency of low temperature side to 30Hz 60 seconds；
Frequency adjustment unit, for the frequency-changeable compressor making frequency adjustment according to evaporating temperature to low temperature side: if evaporation
Temperature is within the scope of evaporation target setting temperature ± 1 DEG C, maintains primary frequency operation；If evaporating temperature-evaporation target setting temperature
>=-15 DEG C of degree, then running frequency every five seconds adds 1Hz；If temperature >=-10 DEG C, running frequency is arranged in evaporating temperature-evaporation target
Every 10 seconds plus 1Hz；If temperature >=-5 DEG C are arranged in evaporating temperature-evaporation target, add 1Hz within running frequency every 30 seconds；If evaporation temperature
Temperature >=-3 DEG C are arranged in degree-evaporation target, then and running frequency every 50 seconds plus 1Hz；If temperature is arranged in evaporating temperature-evaporation target
>=-1 DEG C, then running frequency every 120 seconds plus 1Hz；If temperature >=1 DEG C, running frequency every 60 is arranged in evaporating temperature-evaporation target
Second subtracts 1Hz；If temperature >=2 DEG C are arranged in evaporating temperature-evaporation target, subtract 1Hz within running frequency every 40 seconds；If evaporating temperature-steaming
It sends out target and temperature >=3 DEG C is set, then subtract 1Hz within running frequency every 30 seconds；If temperature >=4 DEG C are arranged in evaporating temperature-evaporation target,
Subtract 1Hz within running frequency every 10 seconds；If temperature >=5 DEG C are arranged in evaporating temperature-evaporation target, running frequency every five seconds subtracts 1Hz；
Frequency limit unit carries out condensation frequency limit to the frequency conversion compression of low temperature side according to condensation temperature for machine: if condensation temperature
>=condensation temperature frequency limit temperature, into frequency limit state, the frequency-changeable compressor of low temperature side no longer raising frequency, the frequency-changeable compressor of low temperature side
Frequency operation is reduced, if condensation temperature=condensation temperature frequency limit temperature, maintains primary frequency operation；If condensation temperature >=condensation temperature
+ 1 DEG C of frequency limit temperature, and condensation temperature does not decline, then subtracts 1Hz within running frequency every 10 seconds；If condensation temperature >=condensation temperature frequency limit
+ 2 DEG C of temperature, and condensation temperature does not decline, then subtracts 2Hz within running frequency every 10 seconds；If condensation temperature >=condensation temperature frequency limit temperature+
3 DEG C, and condensation temperature does not decline, then subtracts 3Hz within running frequency every 10 seconds；If condensation temperature >=+4 DEG C of temperature of condensation temperature frequency limit,
And condensation temperature does not decline, then subtracts 5Hz within running frequency every 10 seconds；If condensation temperature >=+5 DEG C of temperature of condensation temperature frequency limit, and it is cold
Solidifying temperature does not decline, then subtracts 10Hz within running frequency every 10 seconds；If the frequency-changeable compressor of low temperature side condenses temperature after reducing frequency operation
Degree drops to less than condensation temperature frequency limit temperature, then maintains current frequency, exit condensation frequency limit, the frequency-changeable compressor of low temperature side is again
It is secondary according to evaporating temperature making frequency adjustment；
Unit is shut down, when for receiving stopping signal, first stopping the invariable frequency compressor of high temperature side, stopping again after a period of time low
The frequency-changeable compressor of warm side.
A kind of frequency conversion overlapping machine control device according to a second aspect of the present invention, further includes:
Defrost unit, for defrosting, if detecting vapourator full foot environment temperature < 20 DEG C of low temperature side, and environment
Temperature-coil temperature >=defrosting temperature difference stops the compressor of high temperature side and low temperature side, and blowing-out machine switches four-way valve direction, and again
The compressor of secondary starting low temperature side defrosts, and until coil temperature is greater than, temperature is exited in defrosting or operation defrosting time is more than
It defrosts maximum time；Each defrosting time is recorded, if the defrosting time to defrost twice in succession above defrosts maximum time, is extended
Next defrosting time 1 minute；If the defrosting time of last time defrosting was than last shortening 30 seconds or more, defrosting delay next time
Start within 5 minutes.
The third aspect of the present invention, provides a kind of frequency conversion overlapping machine control equipment, including at least one control processor and
Memory for being communicated to connect at least one described control processor；The memory be stored with can by it is described at least one
The instruction that control processor executes, described instruction are executed by least one described control processor, so that at least one described control
Processor processed is able to carry out frequency conversion overlapping machine control method as described in the first aspect of the invention.
The fourth aspect of the present invention, provides a kind of computer readable storage medium, and the computer readable storage medium is deposited
Computer executable instructions are contained, the computer executable instructions are for executing computer as described in the first aspect of the invention
Frequency conversion overlapping machine control method.
The one or more technical solutions provided in the embodiment of the present invention at least have the following beneficial effects: overlapping machine packet
The frequency conversion system and high temperature side for including low temperature side determine display system, using cascade mode first by the evaporation of the frequency conversion system of low temperature side
Device and air carry out the tow taste heat that primary heat exchange absorbs air, and the frequency conversion of low temperature side is carried out by intermediate evaporative condenser
Then the heat exchange of system and high temperature side determined between display system is again mentioned the frequency conversion system of low temperature side by the display system of determining of high temperature side
The more high-grade heat lift supplied is to more high-grade heat；Namely high temperature side compressor and the low temperature side compressor division of labor is closed
To make, low temperature side provides stable heat source to high temperature side, and each oneself limit of power of leisure promotes temperature to respective target temperature,
It is finally reached ownership goal temperature, can effectively ensure that frequency conversion overlapping machine system operates normally, and save efficiency.
Detailed description of the invention
The present invention is further explained with reference to the accompanying drawings and examples；
Fig. 1 is a kind of flow chart of frequency conversion overlapping machine control method provided by one embodiment of the present invention；
Fig. 2 is a kind of flow chart for frequency conversion overlapping machine control method that another embodiment of the present invention provides；
Fig. 3 is a kind of structural schematic diagram for frequency conversion overlapping machine control device that another embodiment of the present invention provides；
Fig. 4 is the structural representation journey figure that a kind of frequency conversion overlapping machine that another embodiment of the present invention provides controls equipment.
Specific embodiment
This part will be described in specific embodiments of the present invention, and the preferred embodiments of the invention is shown in the accompanying drawings, attached
The effect of figure be with figure remark additionally book word segment description, enable a person to intuitively, visually understand of the invention
Each technical characteristic and overall technical architecture, but it should not be understood as limiting the scope of the invention.
In the description of the present invention, it is to be understood that, be related to orientation description, for example, above and below, front, rear, left and right etc.
The orientation or positional relationship of instruction is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of the description present invention and letter
Change description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation construct and
Operation, therefore be not considered as limiting the invention.
In the description of the present invention, several to be meant that one or more, it is multiple to be meant that two or more, be greater than,
Be less than, more than etc. be interpreted as not including this number, it is above, following, within etc. be interpreted as including this number.If there is being described to first,
Second is only intended to for the purpose of distinguishing technical characteristic, is not understood to indicate or imply relative importance or implicitly indicates institute
The quantity of the technical characteristic of instruction or the precedence relationship for implicitly indicating indicated technical characteristic.
In description of the invention, unless otherwise restricted clearly, the words such as setting, installation, connection be shall be understood in a broad sense, institute
Above-mentioned word in the present invention specific can rationally be determined with the particular content of combination technology scheme by belonging to technical field technical staff
Meaning.
Referring to Fig.1, one embodiment of the present of invention provides a kind of frequency conversion overlapping machine control method, comprising the following steps:
Step S100: frequency conversion overlapping machine is opened, if feed liquor temperature≤set temperature-return difference temperature, starts determining for high temperature side
Frequency compressor starts the frequency-changeable compressor of low temperature side after 15 seconds；
Step S200: the frequency-changeable compressor raising frequency of low temperature side to 30Hz is run 60 seconds；
Step S300: the frequency-changeable compressor of low temperature side is according to evaporating temperature making frequency adjustment: steaming if evaporating temperature is in
It sends out within the scope of target setting temperature ± 1 DEG C, maintains primary frequency operation；If temperature >=-1 DEG C is arranged in evaporating temperature-evaporation target,
Increase running frequency；If temperature >=1 DEG C is arranged in evaporating temperature-evaporation target, running frequency is reduced；
Step S400: the frequency-changeable compressor of low temperature side carries out condensation frequency limit according to condensation temperature: if condensation temperature >=condensation
Temperature frequency limit temperature, the frequency-changeable compressor into frequency limit state, the frequency-changeable compressor of low temperature side no longer raising frequency, low temperature side reduce frequency
Rate operation；
Step S500: if condensation temperature drops to less than condensation temperature after the frequency-changeable compressor of low temperature side reduces frequency operation
Frequency limit temperature, then maintain current frequency, exits condensation frequency limit, and the frequency-changeable compressor of low temperature side carries out frequency again according to evaporating temperature
Rate adjustment；
Step S600: when receiving stopping signal, first stop the invariable frequency compressor of high temperature side, stop low temperature side after a period of time again
Frequency-changeable compressor.
In the present embodiment, overlapping machine includes that the frequency conversion system of low temperature side and high temperature side determine display system, and use is cascade
Mode first carries out the tow taste heat that primary heat exchange absorbs air by the evaporator and air of the frequency conversion system of low temperature side, in
Between evaporative condenser carry out low temperature side frequency conversion system and high temperature side the heat exchange determined between display system, then again by high temperature side
Determine more high-grade heat lift that display system provides the frequency conversion system of low temperature side to more high-grade heat；It is namely high
Warm side compression machine and low temperature side compressor are shared out the work and help one another, and low temperature side provides stable heat source, each oneself ability of leisure to high temperature side
Range promotes temperature to respective target temperature, is finally reached ownership goal temperature, can effectively ensure that frequency conversion overlapping machine system
System operates normally, and saves efficiency.
Further, another embodiment of the invention also provides a kind of frequency conversion overlapping machine control method, wherein step
In S300, if temperature >=-1 DEG C is arranged in the evaporating temperature-evaporation target, running frequency is increased, comprising:
If temperature >=-15 DEG C are arranged in evaporating temperature-evaporation target, running frequency every five seconds adds 1Hz；
If temperature >=-10 DEG C are arranged in evaporating temperature-evaporation target, add 1Hz within running frequency every 10 seconds；
If temperature >=-5 DEG C are arranged in evaporating temperature-evaporation target, add 1Hz within running frequency every 30 seconds；
If temperature >=-3 DEG C are arranged in evaporating temperature-evaporation target, add 1Hz within running frequency every 50 seconds；
If temperature >=-1 DEG C is arranged in evaporating temperature-evaporation target, add 1Hz within running frequency every 120 seconds；
If temperature >=1 DEG C is arranged in the evaporating temperature-evaporation target, running frequency is reduced, comprising:
If temperature >=1 DEG C is arranged in evaporating temperature-evaporation target, subtract 1Hz within running frequency every 60 seconds；
If temperature >=2 DEG C are arranged in evaporating temperature-evaporation target, subtract 1Hz within running frequency every 40 seconds；
If temperature >=3 DEG C are arranged in evaporating temperature-evaporation target, subtract 1Hz within running frequency every 30 seconds；
If temperature >=4 DEG C are arranged in evaporating temperature-evaporation target, subtract 1Hz within running frequency every 10 seconds；
If temperature >=5 DEG C are arranged in evaporating temperature-evaporation target, running frequency every five seconds subtracts 1Hz.
Further, another embodiment of the invention also provides a kind of frequency conversion overlapping machine control method, wherein step
In S400, if the condensation temperature >=condensation temperature frequency limit temperature, into frequency limit state, the frequency-changeable compressor of low temperature side is no longer risen
Frequently, the frequency-changeable compressor of low temperature side reduces frequency operation, comprising:
If condensation temperature=condensation temperature frequency limit temperature, primary frequency operation is maintained；
If condensation temperature >=+1 DEG C of temperature of condensation temperature frequency limit, and condensation temperature does not decline, then subtracts within running frequency every 10 seconds
1Hz；
If condensation temperature >=+2 DEG C of temperature of condensation temperature frequency limit, and condensation temperature does not decline, then subtracts within running frequency every 10 seconds
2Hz；
If condensation temperature >=+3 DEG C of temperature of condensation temperature frequency limit, and condensation temperature does not decline, then subtracts within running frequency every 10 seconds
3Hz；
If condensation temperature >=+4 DEG C of temperature of condensation temperature frequency limit, and condensation temperature does not decline, then subtracts within running frequency every 10 seconds
5Hz；
If condensation temperature >=+5 DEG C of temperature of condensation temperature frequency limit, and condensation temperature does not decline, then subtracts within running frequency every 10 seconds
10Hz。
Referring to Fig. 2, it further includes following step that another embodiment of the invention, which also provides a kind of frequency conversion overlapping machine control method,
It is rapid:
Step S700: if detecting vapourator full foot environment temperature < 20 DEG C of low temperature side, and environment temperature-coil temperature
>=defrosting temperature difference, stops the compressor of high temperature side and low temperature side, and blowing-out machine switches four-way valve direction, and is again started up low temperature side
Compressor defrost, exit temperature or when operation defrosting time is more than that defrosting is maximum until coil temperature is greater than defrosting
Between；
Step S800: recording each defrosting time, if the defrosting time to defrost twice in succession above defrosts maximum time,
Extend next defrosting time 1 minute；If the defrosting time of last time defrosting was than last shortening 30 seconds or more, defrosting next time
Delay starts for 5 minutes.
In the present embodiment, due to double stage heat pump, when operation only have low temperature side can frosting, the heat that frosting can reduce system hands over
Efficiency is changed, so will do it defrosting when meeting the defrosting condition in step S700 and operate, in step S800, if removing twice in succession
The defrosting time of frost above defrosts maximum time, extends next defrosting time 1 minute, it can be ensured that defrost completely, increase
Add heat exchange efficiency, prevents from frequently entering defrosting；If the last shortening of defrosting time ratio of last time defrosting 30 seconds or more, under
Secondary defrosting postpones to start for 5 minutes, can enhance the sustainable working performance of system to avoid the defrosting unnecessary of too frequent progress.
Referring to Fig. 3, another embodiment of the invention also provides a kind of frequency conversion overlapping machine control device, comprising:
Start-up unit, if feed liquor temperature≤set temperature-return difference temperature, starts high temperature side for opening frequency conversion overlapping machine
Invariable frequency compressor, after 15 seconds start low temperature side frequency-changeable compressor；
Higher frequency unit, for running the frequency-changeable compressor raising frequency of low temperature side to 30Hz 60 seconds；
Frequency adjustment unit, for the frequency-changeable compressor making frequency adjustment according to evaporating temperature to low temperature side: if evaporation
Temperature is within the scope of evaporation target setting temperature ± 1 DEG C, maintains primary frequency operation；If evaporating temperature-evaporation target setting temperature
>=-15 DEG C of degree, then running frequency every five seconds adds 1Hz；If temperature >=-10 DEG C, running frequency is arranged in evaporating temperature-evaporation target
Every 10 seconds plus 1Hz；If temperature >=-5 DEG C are arranged in evaporating temperature-evaporation target, add 1Hz within running frequency every 30 seconds；If evaporation temperature
Temperature >=-3 DEG C are arranged in degree-evaporation target, then and running frequency every 50 seconds plus 1Hz；If temperature is arranged in evaporating temperature-evaporation target
>=-1 DEG C, then running frequency every 120 seconds plus 1Hz；If temperature >=1 DEG C, running frequency every 60 is arranged in evaporating temperature-evaporation target
Second subtracts 1Hz；If temperature >=2 DEG C are arranged in evaporating temperature-evaporation target, subtract 1Hz within running frequency every 40 seconds；If evaporating temperature-steaming
It sends out target and temperature >=3 DEG C is set, then subtract 1Hz within running frequency every 30 seconds；If temperature >=4 DEG C are arranged in evaporating temperature-evaporation target,
Subtract 1Hz within running frequency every 10 seconds；If temperature >=5 DEG C are arranged in evaporating temperature-evaporation target, running frequency every five seconds subtracts 1Hz；
Frequency limit unit carries out condensation frequency limit to the frequency conversion compression of low temperature side according to condensation temperature for machine: if condensation temperature
>=condensation temperature frequency limit temperature, into frequency limit state, the frequency-changeable compressor of low temperature side no longer raising frequency, the frequency-changeable compressor of low temperature side
Frequency operation is reduced, if condensation temperature=condensation temperature frequency limit temperature, maintains primary frequency operation；If condensation temperature >=condensation temperature
+ 1 DEG C of frequency limit temperature, and condensation temperature does not decline, then subtracts 1Hz within running frequency every 10 seconds；If condensation temperature >=condensation temperature frequency limit
+ 2 DEG C of temperature, and condensation temperature does not decline, then subtracts 2Hz within running frequency every 10 seconds；If condensation temperature >=condensation temperature frequency limit temperature+
3 DEG C, and condensation temperature does not decline, then subtracts 3Hz within running frequency every 10 seconds；If condensation temperature >=+4 DEG C of temperature of condensation temperature frequency limit,
And condensation temperature does not decline, then subtracts 5Hz within running frequency every 10 seconds；If condensation temperature >=+5 DEG C of temperature of condensation temperature frequency limit, and it is cold
Solidifying temperature does not decline, then subtracts 10Hz within running frequency every 10 seconds；If the frequency-changeable compressor of low temperature side condenses temperature after reducing frequency operation
Degree drops to less than condensation temperature frequency limit temperature, then maintains current frequency, exit condensation frequency limit, the frequency-changeable compressor of low temperature side is again
It is secondary according to evaporating temperature making frequency adjustment；
Unit is shut down, when for receiving stopping signal, first stopping the invariable frequency compressor of high temperature side, stopping again after a period of time low
The frequency-changeable compressor of warm side；
Defrost unit, for defrosting, if detecting vapourator full foot environment temperature < 20 DEG C of low temperature side, and environment
Temperature-coil temperature >=defrosting temperature difference stops the compressor of high temperature side and low temperature side, and blowing-out machine switches four-way valve direction, and again
The compressor of secondary starting low temperature side defrosts, and until coil temperature is greater than, temperature is exited in defrosting or operation defrosting time is more than
It defrosts maximum time；Each defrosting time is recorded, if the defrosting time to defrost twice in succession above defrosts maximum time, is extended
Next defrosting time 1 minute；If the defrosting time of last time defrosting was than last shortening 30 seconds or more, defrosting delay next time
Start within 5 minutes.
It should be noted that being controlled by frequency conversion overlapping machine control device in this present embodiment with above-mentioned frequency conversion overlapping machine
Method is based on identical inventive concept, and therefore, the corresponding contents in embodiment of the method are equally applicable to present apparatus embodiment, herein
No longer it is described in detail.
Referring to Fig. 4, equipment is controlled the present invention also provides a kind of frequency conversion overlapping machine, which controls equipment can be with
It is any type of intelligent terminal, such as mobile phone, tablet computer, personal computer etc..
Specifically, frequency conversion overlapping machine control equipment includes: one or more control processors 10 and memory 20, Fig. 4
In by taking a control processor 10 as an example.
Control processor 10 can be connected with memory 20 by bus or other modes, to be connected by bus in Fig. 4
It is connected in example.
Memory 20 is used as a kind of non-transient computer readable storage medium, can be used for storing non-transient software program, non-
Transitory computer executable program and module, such as the corresponding program of frequency conversion overlapping machine control method in the embodiment of the present invention
Instruction/module, for example, start-up unit, higher frequency unit shown in Fig. 3, frequency adjustment unit, frequency limit unit, shut down unit and
Defrost unit.Non-transient software program, instruction and the module that control processor 10 is stored in memory 20 by operation, from
And execute the various function application and data processing of frequency conversion overlapping machine control device, that is, realize the frequency conversion of above method embodiment
Overlapping machine control method.
Memory 20 may include storing program area and storage data area, wherein storing program area can storage program area,
Application program required at least one function；Storage data area can be stored is created according to using for frequency conversion overlapping machine control device
The data etc. built.In addition, memory 20 may include high-speed random access memory, it can also include non-transient memory, example
Such as at least one disk memory, flush memory device or other non-transient solid-state memories.In some embodiments, it deposits
Optional reservoir 20 includes the memory remotely located relative to control processor 10, these remote memories can be connected by network
It is connected to frequency conversion overlapping machine control equipment.The example of above-mentioned network include but is not limited to internet, intranet, local area network,
Mobile radio communication and combinations thereof.
One or more of modules are stored in the memory 20, are handled when by one or more of controls
When device 10 executes, the frequency conversion overlapping machine control method in above method embodiment is executed, for example, executing in Fig. 1 described above
Method and step S100 to S600, the method and step S700 to S800 in Fig. 2, realize start-up unit in Fig. 3, higher frequency unit,
Frequency adjustment unit, frequency limit unit, the function of shutting down unit and the unit that defrosts.
The present invention also provides a kind of computer readable storage medium, the computer-readable recording medium storage has calculating
Machine executable instruction, the computer executable instructions are executed by one or more control processors, for example, by one in Fig. 4
Control processor 10 executes, and it is multiple to may make that said one or multiple control processors 10 execute the frequency conversion in above method embodiment
Folded machine control method, for example, the method and step S100 to S600 in Fig. 1 described above is executed, the method and step S700 in Fig. 2
To S800, realizes the start-up unit in Fig. 3, higher frequency unit, frequency adjustment unit, frequency limit unit, shuts down unit and defrosting unit
Function.
The apparatus embodiments described above are merely exemplary, wherein described, unit can as illustrated by the separation member
It is physically separated with being or may not be, it can it is in one place, or may be distributed over multiple network lists
In member.Some or all of the modules therein can be selected to achieve the purpose of the solution of this embodiment according to the actual needs.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can borrow
Help software that the mode of general hardware platform is added to realize.It will be appreciated by those skilled in the art that realizing in above-described embodiment method
All or part of the process is relevant hardware can be instructed to complete by computer program, and the program can be stored in one
In computer-readable storage medium, the program is when being executed, it may include such as the process of the embodiment of the above method.Wherein, institute
The storage medium stated can be magnetic disk, CD, read-only memory (ReadOnly Memory, ROM), random access memory
(Random Access Memory, RAM) or read-only memory (Electrically Erasable Programmable
Read only memory, EEPROM) etc..
The embodiment of the present invention is explained in detail above in conjunction with attached drawing, but the present invention is not limited to the above embodiments,
The technical field those of ordinary skill within the scope of knowledge, can also make without departing from the purpose of the present invention
Various change out.
Claims (9)
1. a kind of frequency conversion overlapping machine control method characterized by comprising
Frequency conversion overlapping machine is opened, if feed liquor temperature≤set temperature-return difference temperature, starts the invariable frequency compressor of high temperature side, 15 seconds
Start the frequency-changeable compressor of low temperature side afterwards；
The frequency-changeable compressor raising frequency of low temperature side is run 60 seconds to 30Hz；
The frequency-changeable compressor of low temperature side is according to evaporating temperature making frequency adjustment: if evaporating temperature is in evaporation, temperature is arranged in target
Within the scope of ± 1 DEG C, primary frequency operation is maintained；If temperature >=-1 DEG C is arranged in evaporating temperature-evaporation target, running frequency is increased；
If temperature >=1 DEG C is arranged in evaporating temperature-evaporation target, running frequency is reduced；
The frequency-changeable compressor of low temperature side carries out condensation frequency limit according to condensation temperature: if condensation temperature >=condensation temperature frequency limit temperature,
Into frequency limit state, the frequency-changeable compressor of low temperature side no longer raising frequency, the frequency-changeable compressor of low temperature side reduces frequency operation；
If condensation temperature drops to less than condensation temperature frequency limit temperature after the frequency-changeable compressor of low temperature side reduces frequency operation, tie up
Current frequency is held, exits condensation frequency limit, the frequency-changeable compressor of low temperature side is again according to evaporating temperature making frequency adjustment；
When receiving stopping signal, first stop the invariable frequency compressor of high temperature side, stops the frequency-changeable compressor of low temperature side after a period of time again.
2. a kind of frequency conversion overlapping machine control method according to claim 1, which is characterized in that if the evaporating temperature-steaming
It sends out target and temperature >=-1 DEG C is set, then increase running frequency, comprising:
If temperature >=-15 DEG C are arranged in evaporating temperature-evaporation target, running frequency every five seconds adds 1Hz；
If temperature >=-10 DEG C are arranged in evaporating temperature-evaporation target, add 1Hz within running frequency every 10 seconds；
If temperature >=-5 DEG C are arranged in evaporating temperature-evaporation target, add 1Hz within running frequency every 30 seconds；
If temperature >=-3 DEG C are arranged in evaporating temperature-evaporation target, add 1Hz within running frequency every 50 seconds；
If temperature >=-1 DEG C is arranged in evaporating temperature-evaporation target, add 1Hz within running frequency every 120 seconds；
If temperature >=1 DEG C is arranged in the evaporating temperature-evaporation target, running frequency is reduced, comprising:
If temperature >=1 DEG C is arranged in evaporating temperature-evaporation target, subtract 1Hz within running frequency every 60 seconds；
If temperature >=2 DEG C are arranged in evaporating temperature-evaporation target, subtract 1Hz within running frequency every 40 seconds；
If temperature >=3 DEG C are arranged in evaporating temperature-evaporation target, subtract 1Hz within running frequency every 30 seconds；
If temperature >=4 DEG C are arranged in evaporating temperature-evaporation target, subtract 1Hz within running frequency every 10 seconds；
If temperature >=5 DEG C are arranged in evaporating temperature-evaporation target, running frequency every five seconds subtracts 1Hz.
3. a kind of frequency conversion overlapping machine control method according to claim 1, which is characterized in that if the condensation temperature >=cold
Solidifying temperature frequency limit temperature, the frequency-changeable compressor into frequency limit state, the frequency-changeable compressor of low temperature side no longer raising frequency, low temperature side reduce
Frequency operation, comprising:
If condensation temperature=condensation temperature frequency limit temperature, primary frequency operation is maintained；
If condensation temperature >=+1 DEG C of temperature of condensation temperature frequency limit, and condensation temperature does not decline, then subtracts 1Hz within running frequency every 10 seconds；
If condensation temperature >=+2 DEG C of temperature of condensation temperature frequency limit, and condensation temperature does not decline, then subtracts 2Hz within running frequency every 10 seconds；
If condensation temperature >=+3 DEG C of temperature of condensation temperature frequency limit, and condensation temperature does not decline, then subtracts 3Hz within running frequency every 10 seconds；
If condensation temperature >=+4 DEG C of temperature of condensation temperature frequency limit, and condensation temperature does not decline, then subtracts 5Hz within running frequency every 10 seconds；
If condensation temperature >=+5 DEG C of temperature of condensation temperature frequency limit, and condensation temperature does not decline, then subtracts 10Hz within running frequency every 10 seconds.
4. a kind of frequency conversion overlapping machine control method according to claim 1, which is characterized in that further comprising the steps of:
If detecting vapourator full foot environment temperature<20 DEG C of low temperature side, and environment temperature-coil temperature>=defrosting temperature difference,
Stop the compressor of high temperature side and low temperature side, blowing-out machine switches four-way valve direction, and the compressor for being again started up low temperature side is removed
Frost is more than defrosting maximum time until coil temperature is greater than defrosting to exit temperature or operation defrosting time.
5. a kind of frequency conversion overlapping machine control method according to claim 4, which is characterized in that further comprising the steps of:
Each defrosting time is recorded, if the defrosting time to defrost twice in succession above defrosts maximum time, extends defrosting next time
Time 1 minute；If the defrosting time of last time defrosting was than last shortening 30 seconds or more, next time, defrosting delay was opened for 5 minutes
Begin.
6. a kind of frequency conversion overlapping machine control device characterized by comprising
Start-up unit, for opening frequency conversion overlapping machine, if feed liquor temperature≤set temperature-return difference temperature, starts determining for high temperature side
Frequency compressor starts the frequency-changeable compressor of low temperature side after 15 seconds；
Higher frequency unit, for running the frequency-changeable compressor raising frequency of low temperature side to 30Hz 60 seconds；
Frequency adjustment unit, for the frequency-changeable compressor making frequency adjustment according to evaporating temperature to low temperature side: if evaporating temperature
Within the scope of evaporation target setting temperature ± 1 DEG C, primary frequency operation is maintained；If evaporating temperature-evaporation target setting temperature >=-
15 DEG C, then running frequency every five seconds adds 1Hz；If evaporating temperature-evaporation target setting temperature >=-10 DEG C, running frequency every 10 seconds
Add 1Hz；If temperature >=-5 DEG C are arranged in evaporating temperature-evaporation target, add 1Hz within running frequency every 30 seconds；If evaporating temperature-evaporation
Temperature >=-3 DEG C are arranged in target, then and running frequency every 50 seconds plus 1Hz；If temperature >=-1 DEG C is arranged in evaporating temperature-evaporation target,
Running frequency every 120 seconds plus 1Hz；If temperature >=1 DEG C is arranged in evaporating temperature-evaporation target, subtract 1Hz within running frequency every 60 seconds；
If temperature >=2 DEG C are arranged in evaporating temperature-evaporation target, subtract 1Hz within running frequency every 40 seconds；If evaporating temperature-evaporation target is set
Temperature >=3 DEG C are set, then subtract 1Hz within running frequency every 30 seconds；If temperature >=4 DEG C, running frequency is arranged in evaporating temperature-evaporation target
Subtract 1Hz within every 10 seconds；If temperature >=5 DEG C are arranged in evaporating temperature-evaporation target, running frequency every five seconds subtracts 1Hz；
Frequency limit unit carries out condensation frequency limit to the frequency conversion compression of low temperature side according to condensation temperature for machine: if condensation temperature >=cold
Solidifying temperature frequency limit temperature, the frequency-changeable compressor into frequency limit state, the frequency-changeable compressor of low temperature side no longer raising frequency, low temperature side reduce
Frequency operation maintains primary frequency operation if condensation temperature=condensation temperature frequency limit temperature；If condensation temperature >=condensation temperature frequency limit
+ 1 DEG C of temperature, and condensation temperature does not decline, then subtracts 1Hz within running frequency every 10 seconds；If condensation temperature >=condensation temperature frequency limit temperature+
2 DEG C, and condensation temperature does not decline, then subtracts 2Hz within running frequency every 10 seconds；If condensation temperature >=+3 DEG C of temperature of condensation temperature frequency limit,
And condensation temperature does not decline, then subtracts 3Hz within running frequency every 10 seconds；If condensation temperature >=+4 DEG C of temperature of condensation temperature frequency limit, and it is cold
Solidifying temperature does not decline, then subtracts 5Hz within running frequency every 10 seconds；If condensation temperature >=+5 DEG C of temperature of condensation temperature frequency limit, and condense temperature
Degree does not decline, then subtracts 10Hz within running frequency every 10 seconds；If the frequency-changeable compressor of low temperature side reduces after frequency is run under condensation temperature
It drops to and is less than condensation temperature frequency limit temperature, then maintain current frequency, exit condensation frequency limit, the frequency-changeable compressor of low temperature side root again
According to evaporating temperature making frequency adjustment；
Unit is shut down, when for receiving stopping signal, first stopping the invariable frequency compressor of high temperature side, stopping low temperature side after a period of time again
Frequency-changeable compressor.
7. a kind of frequency conversion overlapping machine control device according to claim 6, which is characterized in that further include:
Defrost unit, for defrosting, if detecting vapourator full foot environment temperature < 20 DEG C of low temperature side, and environment temperature-
Coil temperature >=defrosting temperature difference, stops the compressor of high temperature side and low temperature side, and blowing-out machine switches four-way valve direction, and opens again
The compressor of dynamic low temperature side defrosts, and is more than defrosting until coil temperature is greater than defrosting to exit temperature or operation defrosting time
Maximum time；Each defrosting time is recorded, if the defrosting time to defrost twice in succession above defrosts maximum time, extends next time
Defrosting time 1 minute；If the defrosting time of last time defrosting was than last shortening 30 seconds or more, 5 points of defrosting delay next time
Clock starts.
8. a kind of frequency conversion overlapping machine controls equipment, it is characterised in that: including at least one control processor and for it is described extremely
The memory of few control processor communication connection；The memory, which is stored with, to be held by least one described control processor
Capable instruction, described instruction are executed by least one described control processor, so that at least one described control processor can
Execute frequency conversion overlapping machine control method as described in any one in claim 1-5.
9. a kind of computer readable storage medium, it is characterised in that: the computer-readable recording medium storage has computer can
It executes instruction, the computer executable instructions are multiple for making computer execute frequency conversion as described in any one in claim 1-5
Folded machine control method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910547615.9A CN110375469B (en) | 2019-06-24 | 2019-06-24 | Frequency conversion cascade stacker control method, device, equipment and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910547615.9A CN110375469B (en) | 2019-06-24 | 2019-06-24 | Frequency conversion cascade stacker control method, device, equipment and storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110375469A true CN110375469A (en) | 2019-10-25 |
| CN110375469B CN110375469B (en) | 2021-07-02 |
Family
ID=68250525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910547615.9A Active CN110375469B (en) | 2019-06-24 | 2019-06-24 | Frequency conversion cascade stacker control method, device, equipment and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110375469B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111322822A (en) * | 2020-02-27 | 2020-06-23 | 冰山松洋生物科技(大连)有限公司 | Control method of cascade ultralow temperature refrigerator |
| CN114992893A (en) * | 2022-05-31 | 2022-09-02 | 青岛海尔空调电子有限公司 | Cascade heat pump system and control method thereof |
| CN114992894A (en) * | 2022-05-31 | 2022-09-02 | 青岛海尔空调电子有限公司 | Cascade heat pump system and control method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060062405A (en) * | 2004-12-03 | 2006-06-12 | 삼성전자주식회사 | Multi type air conditioner and control method thereof it |
| JP5330915B2 (en) * | 2009-07-22 | 2013-10-30 | 株式会社前川製作所 | Dual refrigeration cycle apparatus and control method thereof |
| CN104534713A (en) * | 2014-12-31 | 2015-04-22 | 华南理工大学 | Dual-compressor rapid cooling low temperature refrigeration system and method |
| CN105004089A (en) * | 2015-07-31 | 2015-10-28 | 广东申菱空调设备有限公司 | Cascaded unit used for both medium-high temperature cold storage house and low temperature cold storage house |
| JP5988698B2 (en) * | 2012-05-25 | 2016-09-07 | 三菱電機株式会社 | Dual refrigeration equipment |
| CN110849009A (en) * | 2019-12-11 | 2020-02-28 | 郑州长城科工贸有限公司 | Cascade refrigeration system and method for reducing starting load thereof |
-
2019
- 2019-06-24 CN CN201910547615.9A patent/CN110375469B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060062405A (en) * | 2004-12-03 | 2006-06-12 | 삼성전자주식회사 | Multi type air conditioner and control method thereof it |
| JP5330915B2 (en) * | 2009-07-22 | 2013-10-30 | 株式会社前川製作所 | Dual refrigeration cycle apparatus and control method thereof |
| JP5988698B2 (en) * | 2012-05-25 | 2016-09-07 | 三菱電機株式会社 | Dual refrigeration equipment |
| CN104534713A (en) * | 2014-12-31 | 2015-04-22 | 华南理工大学 | Dual-compressor rapid cooling low temperature refrigeration system and method |
| CN105004089A (en) * | 2015-07-31 | 2015-10-28 | 广东申菱空调设备有限公司 | Cascaded unit used for both medium-high temperature cold storage house and low temperature cold storage house |
| CN110849009A (en) * | 2019-12-11 | 2020-02-28 | 郑州长城科工贸有限公司 | Cascade refrigeration system and method for reducing starting load thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111322822A (en) * | 2020-02-27 | 2020-06-23 | 冰山松洋生物科技(大连)有限公司 | Control method of cascade ultralow temperature refrigerator |
| CN111322822B (en) * | 2020-02-27 | 2021-09-14 | 冰山松洋生物科技(大连)有限公司 | Control method of cascade ultralow temperature refrigerator |
| CN114992893A (en) * | 2022-05-31 | 2022-09-02 | 青岛海尔空调电子有限公司 | Cascade heat pump system and control method thereof |
| CN114992894A (en) * | 2022-05-31 | 2022-09-02 | 青岛海尔空调电子有限公司 | Cascade heat pump system and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110375469B (en) | 2021-07-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110375469A (en) | A kind of frequency conversion overlapping machine control method, device, equipment and storage medium | |
| CN112484239B (en) | Air conditioner defrosting method and air conditioner | |
| JP5375904B2 (en) | Air conditioner | |
| CN113357762B (en) | Heat storage control method for heat storage air conditioning fan, heat storage air conditioning fan and storage medium | |
| CN111141008A (en) | Control method and control device for defrosting of air conditioner, storage medium and air conditioner | |
| CN109489199A (en) | Control method, device, system and the storage medium of air-conditioning system | |
| CN112781273A (en) | Defrosting control method for heat pump system and heat pump system | |
| CN112781289B (en) | Defrosting control method, device and equipment for low-temperature heat pump and storage medium | |
| CN109974203B (en) | Defrosting method of air conditioner and air conditioner | |
| EP3882531A1 (en) | Defrosting system, defrosting method and air conditioner | |
| CN106871374B (en) | Humidification control method, device and system and air conditioner | |
| CN114322236A (en) | Method and device for controlling air conditioner, air conditioner and storage medium | |
| JP6098994B2 (en) | Heat pump hot water supply system | |
| CN107110584B (en) | Refrigerating device for container | |
| JP6852984B2 (en) | Heat pump system and power limiting system equipped with it | |
| JP6315027B2 (en) | Heat pump system and power limiting system provided with the same | |
| CN110895013B (en) | Control method and device of water multi-connected system, storage medium and water multi-connected system | |
| CN110953715B (en) | Dynamic descaling control method for heat pump hot water unit | |
| CN209541243U (en) | Dual system low temperature storage box | |
| JPH04353336A (en) | Method and device for controlling multitype air-conditioner | |
| CN114440494B (en) | Compressor frequency adjusting method and device, computer equipment and storage medium | |
| CN113339937B (en) | Defrosting control method and device for air conditioner, air conditioner and storage medium | |
| CN112303928B (en) | Heat pump hot water unit and control method | |
| CN114576882B (en) | Heat pump defrosting control method and device, computer equipment and storage medium | |
| JP3605085B2 (en) | Air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |