CN107560173A - Heat pump water-heating machine and its control method, control device - Google Patents
Heat pump water-heating machine and its control method, control device Download PDFInfo
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- CN107560173A CN107560173A CN201710657912.XA CN201710657912A CN107560173A CN 107560173 A CN107560173 A CN 107560173A CN 201710657912 A CN201710657912 A CN 201710657912A CN 107560173 A CN107560173 A CN 107560173A
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Abstract
The invention discloses a kind of heat pump water-heating machine and its control method, control device, the described method comprises the following steps：Obtain the leaving water temperature of outdoor environment temperature and heat pump water-heating machine；Judge whether outdoor environment temperature is in default environment temperature section and continues the first preset time, and judge whether leaving water temperature is in default water temperature section and continues the first preset time, wherein, each corresponding environment temperature a reference value in default environment temperature section, each preset the corresponding water temperature a reference value in water temperature section；If it is, energy-saving run frequency, the energy-saving run rotating speed of blower fan and the energy-conservation aperture of electric expansion valve of compressor are obtained according to environment temperature a reference value and water temperature a reference value；Compressor, blower fan and electric expansion valve are controlled respectively, so that heat pump water-heating machine is run with energy saver mode.This method can be controlled according to outdoor environment temperature and leaving water temperature to heat pump water-heating machine, so as to so that the operation of the more efficient energy-conservation of heat pump water-heating machine.
Description
Technical field
The present invention relates to heat pump water-heating machine technical field, more particularly to a kind of control method of heat pump water-heating machine, Yi Zhongfei
Provisional computer-readable recording medium, a kind of control device of heat pump water-heating machine and a kind of heat pump water-heating machine.
Background technology
Generally, the aptitude tests pattern of heat pump water-heating machine is under certain outdoor environment temperature and leaving water temperature, is passed through
Compressor frequency, rotation speed of fan and electronic expansion valve opening are adjusted be optimal the single-point efficiency of machine.
And in heat pump water-heating machine actual moving process, outdoor environment temperature and leaving water temperature have fluctuation, if according to
Compressor frequency, rotation speed of fan and electronic expansion valve opening in aptitude tests pattern are controlled to heat pump water-heating machine, then
Can not be optimal the operational energy efficiency of heat pump water-heating machine.
The content of the invention
It is contemplated that at least solves one of technical problem in correlation technique to a certain extent.Therefore, the present invention
First purpose is to propose a kind of control method of heat pump water-heating machine, and this method according to outdoor environment temperature and can go out water temperature
Degree is controlled to heat pump water-heating machine, so as to so that the operation of the more efficient energy-conservation of heat pump water-heating machine.
Second object of the present invention is to propose a kind of computer-readable recording medium.
Third object of the present invention is to propose a kind of control device of heat pump water-heating machine.
Fourth object of the present invention is to propose a kind of heat pump water-heating machine.
To reach above-mentioned purpose, first aspect present invention embodiment proposes a kind of control method of heat pump water-heating machine, institute
Stating heat pump water-heating machine includes compressor, blower fan and electric expansion valve, and the control method comprises the following steps：Obtain outdoor environment
The leaving water temperature of temperature and heat pump water-heating machine；Judge whether the outdoor environment temperature is in default environment temperature section and continues
First preset time, and judge whether the leaving water temperature is in default water temperature section and continues the first preset time, wherein, institute
It is respectively at least one to state default environment temperature section and the default water temperature section, each default environment temperature section pair
An environment temperature a reference value is answered, each corresponding water temperature a reference value in default water temperature section；If the outdoor environment
Temperature is in default environment temperature section and continues the first preset time, and the leaving water temperature is in default water temperature section and held
Continuous first preset time, the then energy-conservation that the compressor is obtained according to the environment temperature a reference value and the water temperature a reference value are transported
The energy-conservation aperture of line frequency, the energy-saving run rotating speed of the blower fan and the electric expansion valve；According to the energy-saving run frequency,
The energy-saving run rotating speed and the energy-conservation aperture are entered to tackling compressor, the blower fan and the electric expansion valve respectively
Row control, so that the heat pump water-heating machine is run with energy saver mode.
The control method of heat pump water-heating machine according to embodiments of the present invention, outdoor environment temperature and heat-pump hot-water are obtained first
The leaving water temperature of machine, then judges whether outdoor environment temperature is in default environment temperature section and continues the first preset time,
And whether leaving water temperature is judged in presetting water temperature section and continuing the first preset time, if outdoor environment temperature is in default
Environment temperature section and continue the first preset time, and leaving water temperature is in default water temperature section and continues the first preset time,
Then according to environment temperature a reference value and water temperature a reference value obtain the energy-saving run frequency of compressor, the energy-saving run rotating speed of blower fan and
The energy-conservation aperture of electric expansion valve, finally reply is pressed respectively according to energy-saving run frequency, energy-saving run rotating speed and energy-conservation aperture
Contracting machine, blower fan and electric expansion valve are controlled, so that heat pump water-heating machine is run with energy saver mode.This method can be according to outdoor
Environment temperature and leaving water temperature are controlled to heat pump water-heating machine, so as to so that the operation of the more efficient energy-conservation of heat pump water-heating machine.
In addition, the control method of the heat pump water-heating machine proposed according to the above embodiment of the present invention can also have following add
Technical characteristic：
According to one embodiment of present invention, if the outdoor environment temperature is not in default environment temperature section, or
The time that outdoor environment temperature described in person is in default environment temperature section does not continue the first preset time, or it is described go out water temperature
Degree is not in default water temperature section, or the leaving water temperature be in default water temperature section time do not continue first it is default when
Between, then control the heat pump water-heating machine to perform conventional control strategy.
According to one embodiment of present invention, according to obtaining the environment temperature a reference value and the water temperature a reference value
The energy-conservation aperture of the energy-saving run frequency of compressor, the energy-saving run rotating speed of the blower fan and the electric expansion valve, including：Root
According to the environment temperature a reference value and the water temperature a reference value by inquiring about default outdoor environment temperature-leaving water temperature-frequency locking
Information table is put to obtain the lock frequency point information of the heat pump water-heating machine；According to the corresponding energy-saving run of the frequency locking point acquisition of information
Frequency, energy-saving run rotating speed and energy-conservation aperture.
According to one embodiment of present invention, the control method of above-mentioned heat pump water-heating machine also includes：Judge the heat pump
Whether the time that hot water machine is run with energy saver mode reaches the second preset time, and judges that the outdoor environment temperature is in default
Whether the time in environment temperature section continues the 3rd preset time, and judges that the leaving water temperature is in default water temperature section
Whether the time continues the 3rd preset time；If it is pre- that the time that the heat pump water-heating machine is run with energy saver mode reaches second
If time, or the outdoor environment temperature are in time not lasting 3rd preset time in default environment temperature section,
Or the leaving water temperature is in time not lasting 3rd preset time in default water temperature section, then controls the Heat Pump
Water dispenser exits energy saver mode.
According to one embodiment of present invention, first preset time is 20min, and second preset time is 30-
300min, the 3rd preset time are 30min.
To reach above-mentioned purpose, the second aspect of the present invention embodiment proposes a kind of computer-readable recording medium, its
On be stored with computer program, the program realizes the control method of above-mentioned heat pump water-heating machine when being executed by processor.
The storage medium of the computer of the embodiment of the present invention, the water outlet of outdoor environment temperature and heat pump water-heating machine is obtained first
Temperature, then judges whether outdoor environment temperature is in default environment temperature section and continues the first preset time, and judges
Whether coolant-temperature gage is in presetting water temperature section and continuing the first preset time, if outdoor environment temperature is in default environment temperature
Section and continue the first preset time, and leaving water temperature is in default water temperature section and continues the first preset time, then according to ring
Border temperature reference value and water temperature a reference value obtain the energy-saving run frequency of compressor, the energy-saving run rotating speed and electronic expansion of blower fan
The energy-conservation aperture of valve, finally according to energy-saving run frequency, energy-saving run rotating speed and energy-conservation aperture respectively to reply compressor, blower fan
It is controlled with electric expansion valve, so that heat pump water-heating machine is run with energy saver mode, so as to so that heat pump water-heating machine is more efficient
The operation of energy-conservation.
To reach above-mentioned purpose, the third aspect of the present invention embodiment proposes a kind of control device of heat pump water-heating machine,
The pump hot water machine includes compressor, blower fan and electric expansion valve, and the control device includes：Acquisition module, for obtaining room
The leaving water temperature of external environment temperature and heat pump water-heating machine；First judge module, for judging whether the outdoor environment temperature is located
In default environment temperature section and continue the first preset time, and judge the leaving water temperature whether in default water temperature section and
Continue the first preset time, wherein, the default environment temperature section and the default water temperature section are respectively at least one, often
The individual corresponding environment temperature a reference value in the default environment temperature section, each corresponding water temperature in default water temperature section
A reference value；Control module, for the outdoor environment temperature be in default environment temperature section and continue the first preset time,
And the leaving water temperature when being in default water temperature section and continuing the first preset time according to the environment temperature a reference value and institute
State water temperature a reference value and obtain the energy-saving run frequency of the compressor, the energy-saving run rotating speed of the blower fan and the electronic expansion
The energy-conservation aperture of valve, and according to the energy-saving run frequency, the energy-saving run rotating speed and the energy-conservation aperture respectively to reply
The compressor, the blower fan and the electric expansion valve are controlled, so that the heat pump water-heating machine is run with energy saver mode.
The control device of heat pump water-heating machine according to embodiments of the present invention, by acquisition module obtain outdoor environment temperature and
The leaving water temperature of heat pump water-heating machine, the first judge module judge whether outdoor environment temperature is in default environment temperature section and holds
Continuous first preset time, and judge whether leaving water temperature is in default water temperature section and continues the first preset time, wherein, preset
Environment temperature section and default water temperature section are respectively at least one, each the corresponding environment temperature in default environment temperature section
A reference value, each the corresponding water temperature a reference value in default water temperature section, control module are in default environment in outdoor environment temperature
Temperature range and continue when the first preset time and leaving water temperature are in default water temperature section and continue the first preset time according to
It is swollen that environment temperature a reference value and water temperature a reference value obtain the energy-saving run frequency of compressor, the energy-saving run rotating speed of blower fan and electronics
The energy-conservation aperture of swollen valve, and according to energy-saving run frequency, energy-saving run rotating speed and energy-conservation aperture respectively to reply compressor, blower fan
It is controlled with electric expansion valve, so that heat pump water-heating machine is run with energy saver mode.Thus, the device can be according to outdoor environment
Temperature and leaving water temperature are controlled to heat pump water-heating machine, so as to so that the operation of the more efficient energy-conservation of heat pump water-heating machine.
In addition, the control device of the heat pump water-heating machine proposed according to the above embodiment of the present invention can also have following add
Technical characteristic：
According to one embodiment of present invention, when the outdoor environment temperature is not in default environment temperature section, or
The time that the outdoor environment temperature is in default environment temperature section does not continue the first preset time, or the leaving water temperature
Default water temperature section is not in, or time of the leaving water temperature in default water temperature section does not continue the first preset time
When, the control module is additionally operable to control the heat pump water-heating machine to perform conventional control strategy.
According to one embodiment of present invention, the control module is further used for, according to the environment temperature a reference value
With the water temperature a reference value by inquiring about default outdoor environment temperature-leaving water temperature-frequency locking point information table to obtain the heat
The lock frequency point information of pump hot water machine, and according to the corresponding energy-saving run frequency of the frequency locking point acquisition of information, energy-saving run rotating speed
With energy-conservation aperture.
According to one embodiment of present invention, the control device of above-mentioned heat pump water-heating machine also includes the second judge module,
When second judge module is used to judging whether time that the heat pump water-heating machine run with energy saver mode to reach second and preset
Between, and judge whether time of the outdoor environment temperature in default environment temperature section continues the 3rd preset time, and
Judge that the leaving water temperature is in time whether lasting 3rd preset time in default water temperature section, wherein, when the heat
The time that pump hot water machine is run with energy saver mode reaches the second preset time, or the outdoor environment temperature is in default environment
The time of temperature range does not continue the 3rd preset time, or the leaving water temperature is in the time in default water temperature section not
When continuing three preset time, the control module is additionally operable to control the heat pump water-heating machine to exit energy saver mode.
According to one embodiment of present invention, first preset time is 20min, and second preset time is 30-
300min, the 3rd preset time are 30min.
To reach above-mentioned purpose, fourth aspect present invention embodiment proposes a kind of heat pump water-heating machine, including the present invention the
The control device of heat pump water-heating machine described in three aspect embodiments.
The heat pump water-heating machine of the embodiment of the present invention, by above-mentioned control device, according to outdoor environment temperature and it can go out
Coolant-temperature gage is controlled to compressor, blower fan and electric expansion valve, so as to the operation of more efficient energy-conservation.
Brief description of the drawings
Of the invention above-mentioned and/or additional aspect and advantage will become from the following description of the accompanying drawings of embodiments
Substantially and it is readily appreciated that, wherein,
Fig. 1 is the flow chart of the control method of heat pump water-heating machine according to an embodiment of the invention；
Fig. 2 is the flow chart of the control method of heat pump water-heating machine in accordance with another embodiment of the present invention；
Fig. 3 is the flow chart according to the control method of the heat pump water-heating machine of a specific example of the invention；
Fig. 4 is the block diagram of the control device of heat pump water-heating machine according to an embodiment of the invention；And
Fig. 5 is the block diagram of the control device of heat pump water-heating machine in accordance with another embodiment of the present invention.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
Describe to propose the control method of heat pump water-heating machine, non-transitory meter according to embodiments of the present invention with reference to the accompanying drawings
The control device and heat pump water-heating machine of calculation machine readable storage medium storing program for executing, heat pump water-heating machine.
Fig. 1 is the flow chart of the control method of heat pump water-heating machine according to an embodiment of the invention.Wherein, heat-pump hot-water
Machine includes compressor, blower fan and electric expansion valve, as shown in figure 1, control method comprises the following steps：
S1, obtain the leaving water temperature Twout of outdoor environment temperature T and heat pump water-heating machine.
S2, judges whether outdoor environment temperature T is in default environment temperature section and continues the first preset time t 1, and sentences
Whether disconnected leaving water temperature Twout is in default water temperature section and continues the first preset time t 1.Wherein, environment temperature section is preset
Respectively at least one with default water temperature section, each default environment temperature section corresponds to an environment temperature a reference value Am, often
The individual corresponding water temperature a reference value B in default water temperature sectionn。
S3, if outdoor environment temperature T is in default environment temperature section and continues the first preset time t 1, and go out water temperature
Degree Twout is in default water temperature section and continues the first preset time t 1, then according to environment temperature a reference value AmWith water temperature benchmark
Value BnObtain energy-saving run frequency f, the energy-saving run rotational speed omega of blower fan and the energy-conservation aperture EXV of electric expansion valve of compressor.
Further, according to one embodiment of present invention, as shown in Fig. 2 according to environment temperature a reference value AmAnd water temperature
A reference value BnObtain energy-saving run frequency f, the energy-saving run rotational speed omega of blower fan and the energy-conservation aperture of electric expansion valve of compressor
EXV, including：
S301, according to environment temperature a reference value AmWith water temperature a reference value BnBy inquiring about default outdoor environment temperature-water outlet
Temperature-frequency locking point information table is to obtain the lock frequency point information of heat pump water-heating machine.
S302, according to the corresponding energy-saving run frequency f of frequency locking point acquisition of information, energy-saving run rotational speed omega and energy-conservation aperture
EXV。
S4, according to energy-saving run frequency f, energy-saving run rotational speed omega and energy-conservation aperture EXV respectively to reply compressor, blower fan
It is controlled with electric expansion valve, so that heat pump water-heating machine is run with energy saver mode.
Specifically, the leaving water temperature of outdoor environment temperature T and heat pump water-heating machine can be detected by temperature sensor
Twout。
Whether outdoor environment temperature T can be determined in default environment temperature section according to formula (1) and table 1, and can be with
Whether leaving water temperature Twout can be determined in default water temperature section according to table (1) and formula (2), according to outdoor environment temperature T
Residing default environment temperature section can determine corresponding to water temperature a reference value Am, it is default according to residing for leaving water temperature Twout
Water temperature section can determine corresponding to water temperature a reference value Bn。
Am-2.5≤T≤Am+2.5 (1)
Bn-2.5≤Twout≤Bn+2.5 (2)
Table 1
Wherein, AmFor environment temperature a reference value, and Am-Am-1>=5, BnFor water temperature a reference value, and Bn-Bn-1>=5, m, n are
Positive integer more than or equal to 1, AmBnFor the frequency locking point of heat pump water-heating machine.
If outdoor environment temperature T meets Am-2.5≤T≤Am+ 2.5, and the duration reach the first preset time t 1, go out
Coolant-temperature gage Twout meets Bn-2.5≤Twout≤Bn+ 2.5, and the duration reach the first preset time t 1, then obtain
AmBn, the lock frequency point information of heat pump water-heating machine can be obtained by inquiring about outdoor environment temperature-leaving water temperature-frequency locking point information table,
Wherein, outdoor environment temperature-leaving water temperature-frequency locking point information table can be preset in heat pump water-heating machine in advance in the form of table 2
In storage device.According to compressor, blower fan and the electric expansion valve of lock frequency point information control heat pump water-heating machine to save accordingly
Running frequency f, energy-saving run rotational speed omega and the EXV operations of energy-conservation aperture.
Table 2
For example, if outdoor environment temperature T meets A1-2.5≤T≤A1+ 2.5, leaving water temperature Twout meets B1-
2.5≤Twout≤B1+ 2.5, and the duration reach the t1 times, then control the compressor, blower fan and electronics of heat pump water-heating machine
Expansion valve is respectively with frequency f11, rotational speed omega11With aperture EXV11Operation, so that heat pump water-heating machine is run with energy saver mode.Thus,
This method can be carried out according to outdoor environment temperature and leaving water temperature to the compressor, blower fan and electric expansion valve of heat pump water-heating machine
Control, so as to so that the operation of the more efficient energy-conservation of heat pump water-heating machine.
Further, according to one embodiment of present invention, as shown in Fig. 2 the control method of above-mentioned heat pump water-heating machine
It can also include：
S5, if outdoor environment temperature T is not in default environment temperature section, or outdoor environment temperature T is in default
The time in environment temperature section does not continue the first preset time t 1, or leaving water temperature Twout is not in default water temperature section, or
The time that person's leaving water temperature Twout is in default water temperature section does not continue the first preset time t 1, then controls heat pump water-heating machine to hold
Row conventional control strategy.
Specifically, conventional control strategy is heat pump water-heating machine with control plan during mode operation in addition to energy saver mode
Slightly.If outdoor environment temperature T is unsatisfactory for Am-2.5≤T≤Am+ 2.5, or T is in Am-2.5≤T≤Am+ 2.5 sections when
Between do not continue the t1 times, or Twout is unsatisfactory for Bn-2.5≤Twout≤Bn+ 2.5, or Twout is in interval Bn-2.5≤
Twout≤Bn+ 2.5 time does not continue the t1 times, then control heat pump water-heating machine performs conventional control strategy.
Further, as shown in Fig. 2 the control method of above-mentioned heat pump water-heating machine can also include：
S6, judges whether the time t that heat pump water-heating machine is run with energy saver mode reaches the second preset time t 2, and judges room
Whether the time that external environment temperature T is in default environment temperature section continues the 3rd preset time t 3, and judges leaving water temperature
Whether the time that Twout is in default water temperature section continues the 3rd preset time t 3.
S7, if the time t that heat pump water-heating machine is run with energy saver mode reaches the second preset time t 2, or outdoor environment
The time that temperature T is in default environment temperature section does not continue the 3rd preset time t 3, or leaving water temperature Twout is in default
The time in water temperature section does not continue the 3rd preset time t 3, then controls heat pump water-heating machine to exit energy saver mode.
Wherein, in an embodiment of the present invention, the first preset time t 1 can be 20min, and the second preset time t 2 can be with
For 30-300min, the 3rd preset time t 3 can be 30min.Preferably, the second preset time t 2 can be 60min.
Specifically, when being run according to lock frequency point information control heat pump water-heating machine with energy saver mode, real-time judge Heat Pump
Whether the time t that water dispenser is run with energy saver mode reaches 60min, and judges that outdoor environment temperature T is in Am-2.5≤T≤Am+
Whether the time in 2.5 sections continues 30min, and judges that leaving water temperature Twout is in interval Bn-2.5≤Twout≤Bn+2.5
Time whether continue 30min.If the time t that heat pump water-heating machine is run with energy saver mode reaches 60min, or outdoor environment
Temperature T is in Am-2.5≤T≤AmThe time in+2.5 sections does not continue 30min, or leaving water temperature Twout is in interval Bn-
2.5≤Twout≤Bn+ 2.5 time does not continue 30min, then control heat pump water-heating machine exits energy saver mode, performs conventional control
System strategy.And if the time t that heat pump water-heating machine is run with energy saver mode is not up to 60min, and outdoor environment temperature T is in
Am-2.5≤T≤AmThe time in+2.5 sections continues 30min, and leaving water temperature Twout is in interval Bn-2.5≤Twout≤Bn+
2.5 time continues 30min, then continues to control heat pump water-heating machine to run with energy saver mode according to lock frequency point information, to improve
The operational energy efficiency of heat pump water-heating machine.
To make those skilled in the art be more clearly understood that the present invention, Fig. 3 is the heat according to a specific example of the invention
The flow chart of the control method of pump hot water machine.As shown in figure 3, this method may comprise steps of：
S101, obtain the leaving water temperature Twout of outdoor environment temperature T and heat pump water-heating machine.
S102, judge whether Am-2.5≤T≤Am+ 2.5 and Bn-2.5≤Twout≤Bn+ 2.5, and continue 20min.
If it is not, then perform step S103；If it is, perform step S104.
Specifically, can be according to the A shown in table 1mAnd BnJudge whether Am-2.5≤T≤Am+ 2.5 and Bn-2.5≤
Twout≤Bn+2.5。
S103, control heat pump water-heating machine perform conventional control strategy.
S104, obtain AmBnAnd its corresponding lock frequency point information, according to the compression of lock frequency point information control heat pump water-heating machine
Machine, blower fan and electric expansion valve are with corresponding energy-saving run frequency f, energy-saving run rotational speed omega and the EXV operations of energy-conservation aperture.
Specifically, A can be obtained by inquiry table 2mBnCorresponding lock frequency point information.
S105, judge whether t >=t2, and Am-2.5≤T≤Am+ 2.5 do not continue 30min, and Bn-2.5≤Twout
≤Bn+ 2.5 do not continue 30min.If it is, perform step S106；If it is not, then perform step S107.
Wherein, t is the time that heat pump water-heating machine is run with energy saver mode.
S106, control heat pump water-heating machine exit energy saver mode, perform conventional control strategy.
S107, control heat pump water-heating machine is continued to run with energy saver mode, and return to step S105.
It is appreciated that in an embodiment of the present invention, heat pump water-heating machine enters the process of energy saver mode or exits energy-conservation
After pattern, compressor frequency, rotation speed of fan and electronic expansion valve opening are all controlled according to conventional control strategy.
In summary, the control method of heat pump water-heating machine according to embodiments of the present invention, obtains outdoor environment temperature first
With the leaving water temperature of heat pump water-heating machine, then judge whether outdoor environment temperature in default environment temperature section and continues first
Preset time, and whether leaving water temperature is judged in presetting water temperature section and continuing the first preset time, if outdoor environment temperature
Degree is in default environment temperature section and continues the first preset time, and leaving water temperature is in default water temperature section and continues first
Preset time, then energy-saving run frequency, the energy-conservation of blower fan of compressor are obtained according to environment temperature a reference value and water temperature a reference value
The energy-conservation aperture of running speed and electric expansion valve, finally according to energy-saving run frequency, energy-saving run rotating speed and energy-conservation aperture point
It is other that reply compressor, blower fan and electric expansion valve are controlled, so that heat pump water-heating machine is run with energy saver mode.This method can
To be controlled according to outdoor environment temperature and leaving water temperature to heat pump water-heating machine, so as to so that the more efficient section of heat pump water-heating machine
The operation of energy.
The embodiment of the present invention also proposes a kind of computer-readable recording medium, is stored thereon with computer program, the program
The control method of above-mentioned heat pump water-heating machine is realized when being executed by processor.
The storage medium of the computer of the embodiment of the present invention, the water outlet of outdoor environment temperature and heat pump water-heating machine is obtained first
Temperature, then judges whether outdoor environment temperature is in default environment temperature section and continues the first preset time, and judges
Whether coolant-temperature gage is in presetting water temperature section and continuing the first preset time, if outdoor environment temperature is in default environment temperature
Section and continue the first preset time, and leaving water temperature is in default water temperature section and continues the first preset time, then according to ring
Border temperature reference value and water temperature a reference value obtain the energy-saving run frequency of compressor, the energy-saving run rotating speed and electronic expansion of blower fan
The energy-conservation aperture of valve, finally according to energy-saving run frequency, energy-saving run rotating speed and energy-conservation aperture respectively to reply compressor, blower fan
It is controlled with electric expansion valve, so that heat pump water-heating machine is run with energy saver mode, so as to so that heat pump water-heating machine is more efficient
The operation of energy-conservation.
Fig. 4 is the block diagram of the control device of heat pump water-heating machine according to an embodiment of the invention.Wherein, as schemed
Shown in 4, heat pump water-heating machine includes compressor 1, blower fan 2 and electric expansion valve 3；Control device includes：Acquisition module 10, first are sentenced
Disconnected module 20 and control module 30.
Wherein, acquisition module 10 is used for the leaving water temperature Twout for obtaining outdoor environment temperature T and heat pump water-heating machine.First
Judge module 20 is used to judge whether outdoor environment temperature T is in default environment temperature section and continues the first preset time t 1,
And judge whether leaving water temperature Twout is in default water temperature section and continues the first preset time t 1, wherein, preset environment temperature
Section and default water temperature section are respectively at least one, each the corresponding environment temperature a reference value in default environment temperature section
Am, each preset the corresponding water temperature a reference value B in water temperature sectionn.Control module 30 is used to be in default in outdoor environment temperature T
Environment temperature section and continue that the first preset time t 1 and leaving water temperature Twout are in default water temperature section and to continue first pre-
If according to environment temperature a reference value A during time t1mWith water temperature a reference value BnObtain energy-saving run frequency f, the section of blower fan of compressor
Energy running speed ω and the electric expansion valve energy-conservation aperture EXV, and according to energy-saving run frequency f, energy-saving run rotational speed omega
Reply compressor 1, blower fan 2 and electric expansion valve 3 are controlled respectively with energy-conservation aperture EXV, so that heat pump water-heating machine is to save
Can mode operation.
In an embodiment of the present invention, control module 30 is further used for, according to environment temperature a reference value AmWith water temperature base
Quasi- value BnBy inquiring about default outdoor environment temperature-leaving water temperature-frequency locking point information table to obtain the frequency locking of heat pump water-heating machine
Point information, and according to the corresponding energy-saving run frequency f of frequency locking point acquisition of information, energy-saving run rotational speed omega and energy-conservation aperture EXV.
Specifically, the leaving water temperature of outdoor environment temperature T and heat pump water-heating machine can be detected by temperature sensor
Twout, acquisition module 10 obtain the outdoor environment temperature T of temperature sensor detection and the leaving water temperature Twout of heat pump water-heating machine.
Whether first judge module 20 judges outdoor environment temperature T in default environment temperature section according to formula (1) and table 1, and can
Whether to judge leaving water temperature Twout in default water temperature section according to table (1) and formula (2), and according to outdoor environment temperature T
Residing default environment temperature section may determine that corresponding water temperature a reference value Am, it is pre- according to residing for leaving water temperature Twout
If water temperature section may determine that corresponding water temperature a reference value Bn。
Am-2.5≤T≤Am+2.5 (1)
Bn-2.5≤Twout≤Bn+2.5 (2)
Table 1
| B1 | B2 | …… | Bn | |
| A1 | A1B1 | A1B2 | …… | A1Bn |
| A2 | A2B1 | A2B2 | …… | A2Bn |
| …… | …… | …… | …… | …… |
| Am | AmB1 | AmB2 | …… | AmBn |
Wherein, AmFor environment temperature a reference value, and Am-Am-1>=5, BnFor water temperature a reference value, and Bn-Bn-1>=5, m, n are
Positive integer more than or equal to 1, AmBnFor the frequency locking point of heat pump water-heating machine.
If it is determined that the first judge module 20 judges that outdoor environment temperature T meets Am-2.5≤T≤Am+ 2.5, and continue when
Between reach the first preset time t 1, leaving water temperature Twout meets Bn-2.5≤Twout≤Bn+ 2.5, and the duration reach first
Preset time t 1, then control module 30 obtains AmBn, and by inquiring about outdoor environment temperature-leaving water temperature-frequency locking point information table
The lock frequency point information of heat pump water-heating machine is obtained, and according to compressor 1, blower fan 2 and the electricity of lock frequency point information control heat pump water-heating machine
Sub- expansion valve 3 is with corresponding energy-saving run frequency f, energy-saving run rotational speed omega and the EXV operations of energy-conservation aperture.Wherein, outdoor environment
Temperature-leaving water temperature-frequency locking point information table can be preset in the storage device of heat pump water-heating machine in advance in the form of table 2.
Table 2
For example, if the outdoor environment temperature T of the first judge module 20 meets A1-2.5≤T≤A1+ 2.5, leaving water temperature
Twout meets B1-2.5≤Twout≤B1+ 2.5, and the duration reach the t1 times, then control module 30 control heat-pump hot-water
Compressor 1, blower fan 2 and the electric expansion valve 3 of machine are respectively with frequency f11, rotational speed omega11With aperture EXV11Operation, so that Heat Pump
Water dispenser is run with energy saver mode.Thus, the pressure that the device can be according to outdoor environment temperature and leaving water temperature to heat pump water-heating machine
Contracting machine, blower fan and electric expansion valve are controlled, so as to so that the operation of the more efficient energy-conservation of heat pump water-heating machine.
According to one embodiment of present invention, when outdoor environment temperature T is not in default environment temperature section, or outdoor
The time that environment temperature T is in default environment temperature section does not continue the first preset time t 1, or leaving water temperature Twout does not locate
In default water temperature section, or when leaving water temperature Twout is in time in default water temperature section and does not continue the first preset time t 1,
Control module 30 is additionally operable to control heat pump water-heating machine to perform conventional control strategy.
Specifically, conventional control strategy is heat pump water-heating machine with control plan during mode operation in addition to energy saver mode
Slightly.If the first judge module 20 judges that outdoor environment temperature T is unsatisfactory for Am-2.5≤T≤Am+ 2.5, or judge that T is in Am-
2.5≤T≤AmThe time in+2.5 sections does not continue the t1 times, or judges that Twout is unsatisfactory for Bn-2.5≤Twout≤Bn+ 2.5,
Or judge that Twout is in interval Bn-2.5≤Twout≤Bn+ 2.5 time does not continue the t1 times, then control module 30 is controlled
Heat pump hot water machine and perform conventional control strategy.
According to one embodiment of present invention, as shown in figure 4, the control device of above-mentioned heat pump water-heating machine can also include
Second judge module 40.Second judge module 40 is used to judge whether the time t that heat pump water-heating machine is run with energy saver mode reaches
Second preset time t 2, and it is default to judge whether times of the outdoor environment temperature T in default environment temperature section continues the 3rd
Time t3, and judge that leaving water temperature Twout is in time whether lasting 3rd preset time t 3 in default water temperature section,
Wherein, when the time t that heat pump water-heating machine is run with energy saver mode reaches the second preset time t 2, or at outdoor environment temperature T
Time in default environment temperature section does not continue the 3rd preset time t 3, or leaving water temperature Twout is in default water temperature area
Between time when not continuing three preset time ts 3, control module 30 is additionally operable to control heat pump water-heating machine to exit energy saver mode.
Wherein, in an embodiment of the present invention, the first preset time t 1 can be 20min, and the second preset time t 2 can be with
For 30-300min, the 3rd preset time t 3 can be 30min.Preferably, the second preset time t 2 can be 60min.
Specifically, when control module 30 is run according to lock frequency point information control heat pump water-heating machine with energy saver mode, second
Whether the time t that the real-time judge heat pump water-heating machine of judge module 40 is run with energy saver mode reaches 60min, and judges outdoor environment
Temperature T is in Am-2.5≤T≤AmWhether the time in+2.5 sections continues 30min, and judges that leaving water temperature Twout is in area
Between Bn-2.5≤Twout≤BnWhether+2.5 time continues 30min.If the second judge module 40 judge heat pump water-heating machine with
The time t of energy saver mode operation reaches 60min, or outdoor environment temperature T is in Am-2.5≤T≤AmThe time in+2.5 sections
Do not continue 30min, or leaving water temperature Twout is in interval Bn-2.5≤Twout≤Bn+ 2.5 time does not continue 30min, that
Control module 40 controls heat pump water-heating machine to exit energy saver mode, performs conventional control strategy.And if the second judge module 40
Judge that the time t that heat pump water-heating machine is run with energy saver mode is not up to 60min, and outdoor environment temperature T is in Am-2.5≤T≤
AmThe time in+2.5 sections continues 30min, and leaving water temperature is in interval Bn-2.5≤Twout≤Bn+ 2.5 time continues
30min, then control module 40 continues to control heat pump water-heating machine to run with energy saver mode according to lock frequency point information, to improve heat pump
The operational energy efficiency of hot water machine.
It is appreciated that in an embodiment of the present invention, heat pump water-heating machine enters the process of energy saver mode or exits energy-conservation
After pattern, control module 30 to compressor frequency, rotation speed of fan and electronic expansion valve opening is entered according to conventional control strategy
Row control.
In summary, the control device of heat pump water-heating machine according to embodiments of the present invention, obtained by acquisition module outdoor
Whether the leaving water temperature of environment temperature and heat pump water-heating machine, the first judge module judge outdoor environment temperature in default environment temperature
Degree and continues the first preset time at section, and judge leaving water temperature whether in default water temperature section and continue first it is default when
Between, wherein, preset environment temperature section and default water temperature section is respectively at least one, each default environment temperature section is corresponding
One environment temperature a reference value, the corresponding water temperature a reference value in water temperature section is each preset, control module is in outdoor environment temperature
In default environment temperature section and continue that the first preset time and leaving water temperature are in default water temperature section and to continue first pre-
If according to environment temperature a reference value and the energy-saving run frequency of water temperature a reference value acquisition compressor, the energy-saving run of blower fan during the time
The energy-conservation aperture of rotating speed and electric expansion valve, and corresponded to respectively according to energy-saving run frequency, energy-saving run rotating speed and energy-conservation aperture
Compressor, blower fan and electric expansion valve are controlled, so that heat pump water-heating machine is run with energy saver mode.Thus, the device can
To be controlled according to outdoor environment temperature and leaving water temperature to heat pump water-heating machine, so as to so that the more efficient section of heat pump water-heating machine
The operation of energy.
In addition, the embodiment of the present invention also proposes a kind of heat pump water-heating machine, include the control device of above-mentioned heat pump water-heating machine.
The heat pump water-heating machine of the embodiment of the present invention, by above-mentioned control device, according to outdoor environment temperature and it can go out
Coolant-temperature gage is controlled to compressor, blower fan and electric expansion valve, so as to the operation of more efficient energy-conservation.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, it is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the invention, " multiple " are meant that at least two, such as two, three
It is individual etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements, limited unless otherwise clear and definite.For one of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the different embodiments or example and the feature of different embodiments or example described in this specification
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (12)
1. a kind of control method of heat pump water-heating machine, it is characterised in that the heat pump water-heating machine includes compressor, blower fan and electronics
Expansion valve, the control method comprise the following steps：
Obtain the leaving water temperature of outdoor environment temperature and heat pump water-heating machine；
Judge whether the outdoor environment temperature is in default environment temperature section and continues the first preset time, and described in judgement
Whether leaving water temperature is in default water temperature section and continues the first preset time, wherein, the default environment temperature section and institute
It is respectively at least one to state default water temperature section, each corresponding environment temperature a reference value in default environment temperature section,
Each corresponding water temperature a reference value in the default water temperature section；
If the outdoor environment temperature is in default environment temperature section and continues the first preset time, and the leaving water temperature
In default water temperature section and continue the first preset time, then obtained according to the environment temperature a reference value and the water temperature a reference value
Take the energy-conservation aperture of the energy-saving run frequency of the compressor, the energy-saving run rotating speed of the blower fan and the electric expansion valve；
According to the energy-saving run frequency, the energy-saving run rotating speed and the energy-conservation aperture respectively to tackle the compressor,
The blower fan and the electric expansion valve are controlled, so that the heat pump water-heating machine is run with energy saver mode.
2. the control method of heat pump water-heating machine as claimed in claim 1, it is characterised in that if the outdoor environment temperature is not
Do not continue first in default environment temperature section, or time of the outdoor environment temperature in default environment temperature section
Preset time, either the leaving water temperature is not in default water temperature section or the leaving water temperature is in default water temperature section
Time do not continue the first preset time, then control the heat pump water-heating machine to perform conventional control strategy.
3. the control method of heat pump water-heating machine as claimed in claim 1 or 2, it is characterised in that according to the environment temperature base
Quasi- value and the water temperature a reference value obtain the energy-saving run frequency of the compressor, the energy-saving run rotating speed of the blower fan and described
The energy-conservation aperture of electric expansion valve, including：
According to the environment temperature a reference value and the water temperature a reference value by inquiring about default outdoor environment temperature-go out water temperature
Degree-frequency locking point information table is to obtain the lock frequency point information of the heat pump water-heating machine；
According to the corresponding energy-saving run frequency of the frequency locking point acquisition of information, energy-saving run rotating speed and energy-conservation aperture.
4. the control method of heat pump water-heating machine as claimed in claim 1, it is characterised in that also include：
Judge whether the time that the heat pump water-heating machine is run with energy saver mode reaches the second preset time, and judge the outdoor
Whether the time that environment temperature is in default environment temperature section continues the 3rd preset time, and judges at the leaving water temperature
Whether the time in default water temperature section continues the 3rd preset time；
If the time that the heat pump water-heating machine is run with energy saver mode reaches the second preset time, or the outdoor environment temperature
Time of the degree in default environment temperature section does not continue the 3rd preset time, or the leaving water temperature is in default water
Time between warm area does not continue the 3rd preset time, then controls the heat pump water-heating machine to exit energy saver mode.
5. the control method of heat pump water-heating machine as claimed in claim 4, it is characterised in that first preset time is
20min, second preset time are 30-300min, and the 3rd preset time is 30min.
6. a kind of non-transitorycomputer readable storage medium, is stored thereon with computer program, it is characterised in that the program quilt
The control method as any one of claim 1-5 is realized during computing device.
7. a kind of control device of heat pump water-heating machine, it is characterised in that the heat pump water-heating machine includes compressor, blower fan and electronics
Expansion valve, the control device include：
Acquisition module, for obtaining the leaving water temperature of outdoor environment temperature and heat pump water-heating machine；
First judge module, for judging the outdoor environment temperature whether in default environment temperature section and to continue first pre-
If the time, and judge whether the leaving water temperature is in default water temperature section and continues the first preset time, wherein, it is described default
Environment temperature section and the default water temperature section are respectively at least one, and each default environment temperature section is corresponding one
Environment temperature a reference value, each corresponding water temperature a reference value in default water temperature section；
Control module, for the outdoor environment temperature be in default environment temperature section and continue the first preset time and
According to the environment temperature a reference value and described when the leaving water temperature is in default water temperature section and continues the first preset time
Water temperature a reference value obtains the energy-saving run frequency of the compressor, the energy-saving run rotating speed of the blower fan and the electric expansion valve
Energy-conservation aperture, and according to the energy-saving run frequency, the energy-saving run rotating speed and it is described energy-conservation aperture respectively to tackle institute
State compressor, the blower fan and the electric expansion valve to be controlled, so that the heat pump water-heating machine is run with energy saver mode.
8. the control device of heat pump water-heating machine as claimed in claim 7, it is characterised in that when the outdoor environment temperature is not located
In default environment temperature section, or outdoor environment temperature time for being in default environment temperature section, not continue first pre-
If the time, either the leaving water temperature is not in default water temperature section or the leaving water temperature is in default water temperature section
When time does not continue the first preset time, the control module is additionally operable to control the heat pump water-heating machine to perform conventional control plan
Slightly.
9. the control device of heat pump water-heating machine as claimed in claim 7 or 8, it is characterised in that the control module is further
For according to the environment temperature a reference value and the water temperature a reference value by inquiring about default outdoor environment temperature-go out water temperature
Degree-frequency locking point information table is and corresponding according to the frequency locking point acquisition of information to obtain the lock frequency point information of the heat pump water-heating machine
Energy-saving run frequency, energy-saving run rotating speed and energy-conservation aperture.
10. the control device of heat pump water-heating machine as claimed in claim 7, it is characterised in that also including the second judge module, institute
The second judge module is stated to be used to judge whether the time that the heat pump water-heating machine is run with energy saver mode reaches the second preset time,
And judge whether time of the outdoor environment temperature in default environment temperature section continues the 3rd preset time, and judge
Whether the time that the leaving water temperature is in default water temperature section continues the 3rd preset time, wherein,
Reach the second preset time, or the outdoor environment temperature when the time that the heat pump water-heating machine is run with energy saver mode
Time in default environment temperature section does not continue the 3rd preset time, or the leaving water temperature is in default water temperature
When the time in section does not continue three preset time, the control module is additionally operable to control the heat pump water-heating machine to exit section
Can pattern.
11. the control device of heat pump water-heating machine as claimed in claim 10, it is characterised in that first preset time is
20min, second preset time are 30-300min, and the 3rd preset time is 30min.
12. a kind of heat pump water-heating machine, it is characterised in that including such as the heat pump water-heating machine any one of claim 7-11
Control device.
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| CN201710657912.XA CN107560173A (en) | 2017-08-03 | 2017-08-03 | Heat pump water-heating machine and its control method, control device |
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| CN201710657912.XA CN107560173A (en) | 2017-08-03 | 2017-08-03 | Heat pump water-heating machine and its control method, control device |
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| CN109237712A (en) * | 2018-09-25 | 2019-01-18 | 珠海格力电器股份有限公司 | Multimode unit temperature control method of water |
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| CN114811957A (en) * | 2021-01-29 | 2022-07-29 | 青岛海尔新能源电器有限公司 | Control method and control device of water heater |
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Application publication date: 20180109 |