CN105042938B - Air-cooled heat pump cold-hot water machine system and its plus Unloading Control method - Google Patents
Air-cooled heat pump cold-hot water machine system and its plus Unloading Control method Download PDFInfo
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- CN105042938B CN105042938B CN201510477833.1A CN201510477833A CN105042938B CN 105042938 B CN105042938 B CN 105042938B CN 201510477833 A CN201510477833 A CN 201510477833A CN 105042938 B CN105042938 B CN 105042938B
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Abstract
Add Unloading Control method and air-cooled heat pump cold-hot water machine system the invention discloses a kind of air-cooled heat pump cold-hot water machine system, the described method comprises the following steps：Current environmental temperature is detected, and air-cooled heat pump cold-hot water machine system is obtained according to current environmental temperature and design temperature and adds ability output percentage during unloading to vary with temperature curve；Detection leaving water temperature or return water temperature in real time；Being added ability output percentage during unloading to vary with temperature curve acquisition air-cooled heat pump cold-hot water machine system according to leaving water temperature/return water temperature and air-cooled heat pump cold-hot water machine system adds ability during unloading to export percentage, and exports percentage according to ability and obtain compressor unlatching number；And number is opened according to compressor air-cooled heat pump cold-hot water machine system is carried out to add Unloading Control.This method can realize continuous, the accurate control of leaving water temperature, effectively avoid causing leaving water temperature fluctuation excessive because adding unloading to be delayed, influence Consumer's Experience.
Description
Technical field
The present invention relates to air conditioner technical field, more particularly to a kind of air-cooled heat pump cold-hot water machine system plus Unloading Control
Method and a kind of air-cooled heat pump cold-hot water machine system.
Background technology
Air-cooled heat pump water chiller-heater units are the middle-size and small-size central air-conditioning using air as cold/heat source, and it is situated between by refrigeration of refrigerant
Matter, exchanged heat with water, cold heat amount is provided by secondary heat exchange for desired zone by the water after cooling/heating.
Most of existing air-cooled heat pump water chiller-heater units come the start and stop between control module and add unloading according to entry/exit water temperature,
Therefore, accurately hold air-cooled heat pump water chiller-heater units total water outlets/total return water temperature and intermodule plus unloading relation be effectively to carry
The key of high each module operating efficiency.
In correlation technique, water temperature is always gone out by detection and judges whether it is adding in unloading section, and then is tied according to judgement
Fruit carries out plus unloading adjustment, which can not accurately between control module plus unload, can only passively feed back, there is larger delay
Property.Therefore, it is necessary to add Unloading Control to be improved intermodule.
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
One purpose is to propose that a kind of adding for air-cooled heat pump cold-hot water machine system that can be realized that leaving water temperature is continuous, accurately control unloads
Carry control method.
It is another object of the present invention to propose a kind of air-cooled heat pump cold-hot water machine system.
It is that one aspect of the present invention embodiment proposes a kind of air-cooled heat pump cold-hot water machine system plus unload to reach above-mentioned purpose
Control method is carried, the air-cooled heat pump cold-hot water machine system includes multiple air-cooled heat pump cold-hot water machines, wherein, each air-cooled heat pump
The outlet pipe of water chiller/heater is each individually connected to the total outlet pipe of the air-cooled heat pump cold-hot water machine system, each air-cooled heat-pump cold
The return pipe of hot water machine is each individually connected to total return pipe of the air-cooled heat pump cold-hot water machine system, to realize the multiple wind
Cold-heat pump water chiller/heater is connected in parallel, and described plus Unloading Control method comprises the following steps：Detection current environmental temperature, and according to
The current environmental temperature and design temperature obtain the ability output percentage when air-cooled heat pump cold-hot water machine system adds unloading
Than varying with temperature curve；The leaving water temperature of the total outlet pipe or the return water temperature of total return pipe are detected in real time；Root
Ability during unloading is added to export percentage with temperature according to the leaving water temperature/return water temperature and the air-cooled heat pump cold-hot water machine system
Degree change curve obtains the ability output percentage when air-cooled heat pump cold-hot water machine system adds unloading, and according to the ability
Export percentage and obtain compressor unlatching number；And number is opened to the air-cooled heat pump cold-hot water machine according to the compressor
System carries out plus Unloading Control.
Air-cooled heat pump cold-hot water machine system according to embodiments of the present invention adds Unloading Control method, and front ring is worked as in detection first
Border temperature, and air-cooled heat pump cold-hot water machine system is obtained according to current environmental temperature and design temperature and adds ability during unloading to export
Percentage varies with temperature curve, then detects the leaving water temperature of total outlet pipe or the return water temperature of total return pipe, root in real time
Add ability during unloading to export percentage according to leaving water temperature/return water temperature and air-cooled heat pump cold-hot water machine system and vary with temperature song
Line obtains ability output percentage when air-cooled heat pump cold-hot water machine system adds unloading, and exports percentage according to ability and obtain pressure
Contracting machine opens number, and opens number according to compressor and air-cooled heat pump cold-hot water machine system is carried out to add Unloading Control, so as to
Continuous, the accurate control of leaving water temperature is realized, i.e., the demand of user is determined based on leaving water temperature, and then accurately starts phase
The quantity of air-cooled heat pump cold-hot water machine is answered, and is adjusted in real time, effectively prevent and go out water temperature caused by delay plus unloading
Degree fluctuates, and improves the experience of user.
According to one embodiment of present invention, when carrying out Loading Control to the air-cooled heat pump cold-hot water machine system, its
In, if the leaving water temperature/return water temperature is more than or equal to default start-up temperature Ts-dAnd less than or equal to the first default temperature
Spend Ts+d, then according to the ability export percentage vary with temperature curve acquisition described in air-cooled heat pump cold-hot water machine system energy
Power output percentage X%, it is rounding for N*X% that the compressor, which opens number, and N is the total quantity of air-cooled heat pump cold-hot water machine；
If leaving water temperature/the return water temperature is more than the first preset temperature Ts+dAnd it is less than the second preset temperature Tsmax, then obtain
The ability output percentage of the air-cooled heat pump cold-hot water machine system is default maximum output percentage a%, the compressor
It is rounding for N*a% to open number；If leaving water temperature/the return water temperature is more than or equal to second preset temperature
Tsmax, then the compressor in the air-cooled heat pump cold-hot water machine system is controlled all to start.
According to one embodiment of present invention, when carrying out Unloading Control to the air-cooled heat pump cold-hot water machine system, its
In, if the leaving water temperature/return water temperature is less than or equal to the second preset temperature TsmaxAnd more than or equal to the 3rd default temperature
Spend Tsf, then the compressor in the air-cooled heat pump cold-hot water machine system is controlled all to start；If the leaving water temperature/backwater temperature
Degree is less than the 3rd preset temperature TsfAnd it is more than the first preset temperature Ts+d, then the air-cooled heat pump cold-hot water machine system is obtained
Ability output percentage be default maximum output percentage a%, the compressor opens number rounding for N*a%, and N is
The total quantity of air-cooled heat pump cold-hot water machine；If leaving water temperature/the return water temperature is more than or equal to default start-up temperature Ts-d
And it is less than or equal to the first preset temperature Ts+d, then percentage is exported according to the ability and varies with temperature curve acquisition institute
The ability output percentage X% of air-cooled heat pump cold-hot water machine system is stated, it is rounding for N*X% that the compressor, which opens number,；Such as
Leaving water temperature/return water temperature described in fruit is less than the default start-up temperature Ts-dAnd it is more than default shutdown temperature Toff, then obtain
The ability of the air-cooled heat pump cold-hot water machine system is taken to export percentage as default minimum output percentage b%, the compression
Machine opens number rounding for N*b%, b ＜ a.
Wherein, when the leaving water temperature/return water temperature is less than or equal to the default shutdown temperature ToffWhen, control institute
State the compressor Close All in air-cooled heat pump cold-hot water machine system.
In some embodiments of the invention, do not given up by rounding with obtaining only to enter when the compressor opens number.
To reach above-mentioned purpose, another aspect of the present invention embodiment proposes a kind of air-cooled heat pump cold-hot water machine system, bag
Include：Multiple air-cooled heat pump cold-hot water machines, the outlet pipe of each air-cooled heat pump cold-hot water machine are each individually connected to the air-cooled heat pump
The total outlet pipe of water chiller/heater system, the return pipe of each air-cooled heat pump cold-hot water machine are each individually connected to the air-cooled heat-pump cold
Total return pipe of water-heating machine system, to realize that the multiple air-cooled heat pump cold-hot water machine is connected in parallel；First temperature detecting module,
For detecting current environmental temperature；Second temperature detection module, for detect in real time the total outlet pipe leaving water temperature or
The return water temperature of total return pipe；Control module, for obtaining the wind according to the current environmental temperature and design temperature
Cold-heat pump water chiller/heater system adds ability during unloading to export percentage to vary with temperature curve, and according to the leaving water temperature/
Return water temperature and the air-cooled heat pump cold-hot water machine system add ability output percentage during unloading to vary with temperature curve acquisition
The air-cooled heat pump cold-hot water machine system adds ability output percentage during unloading, and exports percentage according to the ability and obtain
Take compressor to open number, and number is opened according to the compressor air-cooled heat pump cold-hot water machine system is carried out plus unloaded
Control.
Air-cooled heat pump cold-hot water machine system according to embodiments of the present invention, the first temperature detecting module detection current environment temperature
Degree, second temperature detection module detect the leaving water temperature of total outlet pipe or the return water temperature of total return pipe, control module in real time
According to current environmental temperature and design temperature obtain ability output percentage when air-cooled heat pump cold-hot water machine system adds unloading with
Temperature variation curve, and add ability during unloading to export according to leaving water temperature/return water temperature and air-cooled heat pump cold-hot water machine system
Percentage varies with temperature ability output percentage when curve acquisition air-cooled heat pump cold-hot water machine system adds unloading, and according to
Ability output percentage obtains compressor and opens number, and opens number according to compressor and air-cooled heat pump cold-hot water machine system is entered
Row plus Unloading Control, so as to realize continuous, the accurate control of leaving water temperature, i.e., the need of user are determined based on leaving water temperature
Ask, and then accurately start the quantity of corresponding air-cooled heat pump cold-hot water machine, and adjusted in real time, be effectively prevent because delay adds
Leaving water temperature fluctuates caused by unloading, improves the experience of user.
According to one embodiment of present invention, when carrying out Loading Control to the air-cooled heat pump cold-hot water machine system, its
In, if the leaving water temperature/return water temperature is more than or equal to default start-up temperature Ts-dAnd less than or equal to the first default temperature
Spend Ts+d, then the air-cooled heat pump according to ability output percentage varies with temperature curve acquisition is cold and hot for the control module
The ability output percentage X% of water dispenser system, it is rounding for N*X% that the compressor, which opens number, and N is air-cooled heat pump cold-hot water
The total quantity of machine；If leaving water temperature/the return water temperature is more than the first preset temperature Ts+dAnd it is less than the second preset temperature
Tsmax, the ability output percentage that the control module then obtains the air-cooled heat pump cold-hot water machine system is that default maximum is defeated
Go out percentage a%, it is rounding for N*a% that the compressor, which opens number,；If leaving water temperature/the return water temperature is more than or waited
In the second preset temperature Tsmax, the control module then controls the compressor in the air-cooled heat pump cold-hot water machine system complete
Portion starts.
According to one embodiment of present invention, when carrying out Unloading Control to the air-cooled heat pump cold-hot water machine system, its
In, if the leaving water temperature/return water temperature is less than or equal to the second preset temperature TsmaxAnd more than or equal to the 3rd default temperature
Spend Tsf, the control module then controls compressor in the air-cooled heat pump cold-hot water machine system all to start；If it is described go out
Coolant-temperature gage/return water temperature is less than the 3rd preset temperature TsfAnd it is more than the first preset temperature Ts+d, the control module then obtains
The ability output percentage of the air-cooled heat pump cold-hot water machine system is default maximum output percentage a%, the compressor
It is rounding for N*a% to open number, and N is the total quantity of air-cooled heat pump cold-hot water machine；If leaving water temperature/the return water temperature is big
In or equal to default start-up temperature Ts-dAnd it is less than or equal to the first preset temperature Ts+d, the control module is then according to institute
State the ability output percentage that ability output percentage varies with temperature air-cooled heat pump cold-hot water machine system described in curve acquisition
X%, it is rounding for N*X% that the compressor, which opens number,；If leaving water temperature/the return water temperature is less than described default open
Dynamic temperature Ts-dAnd it is more than default shutdown temperature Toff, the control module then obtains the air-cooled heat pump cold-hot water machine system
Ability exports percentage and opens number rounding for N*b%, b ＜ a for default minimum output percentage b%, the compressor.
Wherein, when the leaving water temperature/return water temperature is less than or equal to the default shutdown temperature ToffWhen, the control
Molding block controls the compressor Close All in the air-cooled heat pump cold-hot water machine system.
In some embodiments of the invention, do not given up by rounding with obtaining only to enter when the compressor opens number.
Brief description of the drawings
Fig. 1 is air-cooled heat pump cold-hot water machine system according to embodiments of the present invention plus Unloading Control method flow chart.
Fig. 2 is ability output percentage when air-cooled heat pump cold-hot water machine system according to an embodiment of the invention adds unloading
Than varying with temperature curve map.
Fig. 3 is the block diagram of air-cooled heat pump cold-hot water machine system according to embodiments of the present invention.
Reference：Multiple air-cooled heat pump cold-hot water machines 10, the first temperature detecting module 20, second temperature detection module 30
With control module 40.
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.
The adding for air-cooled heat pump cold-hot water machine system to describe to propose according to embodiments of the present invention, unloads with reference to the accompanying drawings
Control method and air-cooled heat pump cold-hot water machine system.
Fig. 1 is air-cooled heat pump cold-hot water machine system according to embodiments of the present invention plus Unloading Control method flow chart.
Wherein, air-cooled heat pump cold-hot water machine system includes multiple air-cooled heat pump cold-hot water machines, the water outlet of each air-cooled heat pump cold-hot water machine
Pipe is each individually connected to the total outlet pipe of air-cooled heat pump cold-hot water machine system, and the return pipe of each air-cooled heat pump cold-hot water machine is divided equally
Total return pipe of air-cooled heat pump cold-hot water machine system is not connected to, to realize that multiple air-cooled heat pump cold-hot water machines are connected in parallel.
As shown in figure 1, the air-cooled heat pump cold-hot water machine system adds Unloading Control method to comprise the following steps：
S1, current environmental temperature is detected, and air-cooled heat pump cold-hot water machine is obtained according to current environmental temperature and design temperature
System adds ability output percentage during unloading to vary with temperature curve.
According to the specific example of the present invention, air-cooled heat pump cold-hot water machine system adds ability output percentage during unloading
Curve is varied with temperature as shown in Fig. 2 wherein, ToffFor shutdown temperature, Ts-dFor start-up temperature, TsFor design temperature, Ts+dFor
One preset temperature, TsfFor the 3rd preset temperature, TsmaxFor the second preset temperature, also, shutdown temperature ToffWith start-up temperature Ts-d
Between temperature gap ToffsetTo shut down return difference temperature, start-up temperature Ts-dWith the first preset temperature Ts+dBetween temperature gap
T2dFor temperature controlling range, the first preset temperature Ts+dWith the 3rd preset temperature TsfBetween temperature gap t1For the first active region
Between, the 3rd preset temperature TsfWith the second preset temperature TsmaxBetween temperature gap t2For the second action section, a% is maximum defeated
Go out percentage, b% is minimum output percentage, and Ps is that the ability corresponding to design temperature Ts exports percentage.
S2, the leaving water temperature of total outlet pipe or the return water temperature of total return pipe are detected in real time.
S3, ability output percentage during unloading is added according to leaving water temperature/return water temperature and air-cooled heat pump cold-hot water machine system
Ability during unloading is added to export percentage than varying with temperature curve acquisition air-cooled heat pump cold-hot water machine system, and it is defeated according to ability
Go out percentage and obtain compressor unlatching number.
S4, number is opened according to compressor air-cooled heat pump cold-hot water machine system is carried out to add Unloading Control.
According to one embodiment of present invention, when carrying out Loading Control to air-cooled heat pump cold-hot water machine system, wherein, such as
Fruit leaving water temperature/return water temperature is more than or equal to default start-up temperature Ts-dAnd it is less than or equal to the first preset temperature Ts+d, then
The ability that curve acquisition air-cooled heat pump cold-hot water machine system is varied with temperature according to ability output percentage exports percentage X%,
It is rounding for N*X% that compressor, which opens number, and N is the total quantity of air-cooled heat pump cold-hot water machine；If leaving water temperature/return water temperature
More than the first preset temperature Ts+dAnd it is less than the second preset temperature Tsmax, then the ability of acquisition air-cooled heat pump cold-hot water machine system is defeated
It is default maximum output percentage a% to go out percentage, and it is rounding for N*a% that compressor, which opens number,；If leaving water temperature/return
Coolant-temperature gage is more than or equal to the second preset temperature Tsmax, then the compressor in air-cooled heat pump cold-hot water machine system is controlled all to open
It is dynamic.
According to one embodiment of present invention, when carrying out Unloading Control to air-cooled heat pump cold-hot water machine system, wherein, such as
Fruit leaving water temperature/return water temperature is less than or equal to the second preset temperature TsmaxAnd it is more than or equal to the 3rd preset temperature Tsf, then control
Compressor in air-cooled heat pump cold-hot water machine system processed all starts；If leaving water temperature/return water temperature is less than the 3rd default temperature
Spend TsfAnd it is more than the first preset temperature Ts+d, then it is default to obtain the ability output percentage of air-cooled heat pump cold-hot water machine system
Maximum output percentage a%, it is rounding for N*a% that compressor, which opens number, and N is the total quantity of air-cooled heat pump cold-hot water machine；Such as
Fruit leaving water temperature/return water temperature is more than or equal to default start-up temperature Ts-dAnd it is less than or equal to the first preset temperature Ts+d, then
The ability that curve acquisition air-cooled heat pump cold-hot water machine system is varied with temperature according to ability output percentage exports percentage X%,
It is rounding for N*X% that compressor, which opens number,；If leaving water temperature/return water temperature is less than default start-up temperature Ts-dAnd it is more than
Default shutdown temperature Toff, then the ability output percentage for obtaining air-cooled heat pump cold-hot water machine system is default minimum output
Percentage b%, compressor open number rounding for N*b%, b ＜ a.Also, when leaving water temperature/return water temperature is less than or equal to
Default shutdown temperature ToffWhen, control the compressor Close All in air-cooled heat pump cold-hot water machine system.
In some embodiments of the invention, do not given up by rounding with obtaining only to enter when compressor opens number.
Specifically, if design temperature is Ts, the current environmental temperature of detection is Th, then it is T according to design temperaturesWith work as
Preceding environment temperature ThSelect suitable difference d, the first action section t1, second action section t2, maximum output percentage a% and
Minimum output percentage b%, and according to difference d and design temperature TsDetermine start-up temperature TS-d, shut down return difference temperature ToffsetWith
Temperature controlling range T2d, as shown in table 1.
Table 1
| Title | Default value | Scope is set |
| Start-up temperature TS-d | 7 | 0-15 |
| Shut down return difference temperature Toffset | 2 | 2-5 |
| Temperature controlling range T2d | 3 | 2-5 |
| First action section t1 | 1 | 1-3 |
| Second action section t2 | 1 | 1-3 |
| Minimum output percentage b% | 20% | 10%-30% |
| Maximum output percentage a% | 80% | 70%-90% |
If that is, according to design temperature TsWith current environmental temperature ThThe difference d=1.5 of selection, the first active region
Between t1=1, second action section t2=1, maximum output percentage a%=80% and minimum output percentage b%=20%, then
Shutdown temperature T can be determinedoff=5, start-up temperature TS-d=7, first preset temperature Ts+d=10, the 3rd preset temperature Tsf=11
And the second preset temperature Tsmax=12, so as to obtain the ability when air-cooled heat pump cold-hot water machine system shown in Fig. 2 adds unloading
Output percentage varies with temperature curve.
The return water temperature of the leaving water temperature of detection total outlet pipe or total return pipe in real time, if current leaving water temperature/return
Coolant-temperature gage is less than start-up temperature Ts-d, then whole compressors in air-cooled heat pump cold-hot water machine system are controlled to be closed, i.e.,
Control air-cooled heat pump cold-hot water machine system does not start output；If current leaving water temperature/return water temperature, which is more than or equal to, starts temperature
Spend Ts-d, then air-cooled heat pump cold-hot water machine system is controlled to start output.It is actually needed so as to basis to air-cooled heat pump cold-hot water
Machine system carries out startup control, avoids meaningless startup and causes electric quantity loss.
Control air-cooled heat pump cold-hot water machine system start output during, its control logic follow A → B → C → D →
E → F → C → B → A → G → H → I, wherein, by the Loading Control mistake that A → B → C → D → E is air-cooled heat pump cold-hot water machine system
Journey, by the Unloading Control process that E → F → C → B → A → G → H → I is air-cooled heat pump cold-hot water machine system.
Specifically, it is assumed that current leaving water temperature/return water temperature is T0, then added in air-cooled heat pump cold-hot water machine system
Carry in control process：As start-up temperature Ts-d≤T0≤ the first preset temperature Ts+dWhen, the ability of air-cooled heat pump cold-hot water machine system
Output percentage is X%, and it is rounding for N*X% that compressor, which opens number,；As the first preset temperature Ts+d＜ T0The default temperature of ＜ second
Spend TsmaxWhen, the ability output percentage of air-cooled heat pump cold-hot water machine system is maximum output percentage a%, and compressor is opened individual
Number rounds for N*a%'s；As the second preset temperature Tsmax≤T0When, control the compressor in air-cooled heat pump cold-hot water machine system complete
Portion starts, i.e. the ability output of air-cooled heat pump cold-hot water machine system is 100%.Unloaded in air-cooled heat pump cold-hot water machine system
In control process：As the 3rd preset temperature Tsf≤T0≤ the second preset temperature TsmaxWhen, control air-cooled heat pump cold-hot water machine system
In compressor all start；As the first preset temperature Ts+d＜ T0The preset temperature T of ＜ the 3rdsfWhen, air-cooled heat pump cold-hot water machine system
The ability output percentage of system is maximum output percentage a%, and it is rounding for N*a% that compressor, which opens number,；Work as start-up temperature
Ts-d≤T0≤ the first preset temperature Ts+dWhen, the ability output percentage of air-cooled heat pump cold-hot water machine system is X%, and compressor is opened
It is rounding for N*X% to open number；As shutdown temperature Toff＜ T0＜ start-up temperatures Ts-dWhen, the energy of air-cooled heat pump cold-hot water machine system
Power output percentage is minimum output percentage b%, and it is rounding for N*b% that compressor, which opens number,.
And work as T0≤ shutdown temperature ToffWhen, the compressor Close All in air-cooled heat pump cold-hot water machine system is controlled, that is, is controlled
Air-cooled heat pump cold-hot water machine system processed stops output.So as to realize continuous, the accurate control to the leaving water temperature of total outlet pipe, keep away
Exempt to control high frequent start and stop and produce loss, and controlled according to user's request real-time, tunable, avoid compressor meaningless
Start and cause electric quantity loss, and effectively avoid leaving water temperature fluctuation excessive, improve Consumer's Experience.
In summary, air-cooled heat pump cold-hot water machine system according to embodiments of the present invention plus Unloading Control method, first
When detecting current environmental temperature, and adding unloading according to current environmental temperature and design temperature acquisition air-cooled heat pump cold-hot water machine system
Ability output percentage vary with temperature curve, then in real time detection total outlet pipe leaving water temperature or total return pipe return
Coolant-temperature gage, ability output percentage when adding unloading according to leaving water temperature/return water temperature and air-cooled heat pump cold-hot water machine system with
Temperature variation curve obtains ability output percentage when air-cooled heat pump cold-hot water machine system adds unloading, and exports hundred according to ability
Divide and open number than obtaining compressor, and air-cooled heat pump cold-hot water machine system add according to compressor unlatching number and unloaded
Control, so as to realize continuous, the accurate control of leaving water temperature, i.e., the demand of user, Jin Erzhun are determined based on leaving water temperature
The quantity of the true corresponding air-cooled heat pump cold-hot water machine of startup, and adjusted in real time, it effectively prevent and led because of delay plus unloading
The leaving water temperature of cause fluctuates, and improves the experience of user.
Fig. 3 is the block diagram of air-cooled heat pump cold-hot water machine system according to embodiments of the present invention.As shown in figure 3, should
Air-cooled heat pump cold-hot water machine system includes：Multiple air-cooled heat pump cold-hot water machines 10, the first temperature detecting module 20, second temperature inspection
Survey module 30 and control module 40.
Wherein, the outlet pipe of each air-cooled heat pump cold-hot water machine is each individually connected to the total of air-cooled heat pump cold-hot water machine system
Outlet pipe, the return pipe of each air-cooled heat pump cold-hot water machine are each individually connected to total backwater of air-cooled heat pump cold-hot water machine system
Pipe, to realize that multiple air-cooled heat pump cold-hot water machines are connected in parallel.First temperature detecting module 20 is used to detect current environmental temperature,
Second temperature detection module 30 is used to detect the leaving water temperature of total outlet pipe or the return water temperature of total return pipe in real time, controls mould
Block 40 is used to obtain ability output when air-cooled heat pump cold-hot water machine system adds unloading according to current environmental temperature and design temperature
Percentage varies with temperature curve, and when adding unloading according to leaving water temperature/return water temperature and air-cooled heat pump cold-hot water machine system
Ability output percentage varies with temperature ability output percentage when curve acquisition air-cooled heat pump cold-hot water machine system adds unloading,
And percentage is exported according to ability and obtains compressor unlatching number, and number is opened to air-cooled heat pump cold-hot water according to compressor
Machine system carries out plus Unloading Control.
According to the specific example of the present invention, air-cooled heat pump cold-hot water machine system adds ability output percentage during unloading
Curve is varied with temperature as shown in Fig. 2 wherein, ToffFor shutdown temperature, Ts-dFor start-up temperature, TsFor design temperature, Ts+dFor
One preset temperature, TsfFor the 3rd preset temperature, TsmaxFor the second preset temperature, also, shutdown temperature ToffWith start-up temperature Ts-d
Between temperature gap ToffsetTo shut down return difference temperature, start-up temperature Ts-dWith the first preset temperature Ts+dBetween temperature gap
T2dFor temperature controlling range, the first preset temperature Ts+dWith the 3rd preset temperature TsfBetween temperature gap t1For the first active region
Between, the 3rd preset temperature TsfWith the second preset temperature TsmaxBetween temperature gap t2For the second action section, a% is maximum defeated
Go out percentage, b% is minimum output percentage, and Ps is that the ability corresponding to design temperature Ts exports percentage.
According to one embodiment of present invention, when carrying out Loading Control to air-cooled heat pump cold-hot water machine system, wherein, such as
Fruit leaving water temperature/return water temperature is more than or equal to default start-up temperature Ts-dAnd it is less than or equal to the first preset temperature Ts+d, control
The ability that molding block 40 then varies with temperature curve acquisition air-cooled heat pump cold-hot water machine system according to ability output percentage exports
Percentage X%, it is rounding for N*X% that compressor, which opens number, and N is the total quantity of air-cooled heat pump cold-hot water machine；If go out water temperature
Degree/return water temperature is more than the first preset temperature Ts+dAnd it is less than the second preset temperature Tsmax, control module 40 then obtains air-cooled heat pump
The ability output percentage of water chiller/heater system is default maximum output percentage a%, and it is N*a%'s that compressor, which opens number,
Round；If leaving water temperature/return water temperature is more than or equal to the second preset temperature Tsmax, control module 40 then controls air-cooled heat pump
Compressor in water chiller/heater system all starts.
According to one embodiment of present invention, when carrying out Unloading Control to air-cooled heat pump cold-hot water machine system, wherein, such as
Fruit leaving water temperature/return water temperature is less than or equal to the second preset temperature TsmaxAnd it is more than or equal to the 3rd preset temperature Tsf, control
Module 40 then controls the compressor in air-cooled heat pump cold-hot water machine system all to start；If leaving water temperature/return water temperature is less than
3rd preset temperature TsfAnd it is more than the first preset temperature Ts+d, control module 40 then obtains the energy of air-cooled heat pump cold-hot water machine system
Power output percentage is default maximum output percentage a%, and it is rounding for N*a% that compressor, which opens number, and N is air-cooled heat pump
The total quantity of water chiller/heater；If leaving water temperature/return water temperature is more than or equal to default start-up temperature Ts-dAnd it is less than or equal to
First preset temperature Ts+d, it is cold and hot that control module 40 then varies with temperature curve acquisition air-cooled heat pump according to ability output percentage
The ability output percentage X% of water dispenser system, it is rounding for N*X% that compressor, which opens number,；If leaving water temperature/return water temperature
Less than default start-up temperature Ts-dAnd it is more than default shutdown temperature Toff, control module 40 then obtains air-cooled heat pump cold-hot water machine
The ability of system exports percentage and opens number rounding for N*b%, b ＜ for default minimum output percentage b%, compressor
a.Also, when leaving water temperature/return water temperature is less than or equal to default shutdown temperature ToffWhen, control module 40 controls air-cooled heat
Compressor Close All in pump water chiller/heater system.
In some embodiments of the invention, do not given up by rounding with obtaining only to enter when compressor opens number.
Specifically, if design temperature is Ts, the current environmental temperature of the first temperature detecting module 20 detection is Th, then control
Molding block 40 is T according to design temperaturesWith current environmental temperature ThSelect suitable difference d, the first action section t1, it is second dynamic
Make section t2, maximum output percentage a% and minimum output percentage b%, and according to difference d and design temperature TsIt is determined that start
Temperature TS-d, shut down return difference temperature ToffsetWith temperature controlling range T2d, as shown in Table 1 above.
That is, if control module 40 is according to design temperature TsWith current environmental temperature ThThe difference d=1.5 of selection,
First action section t1=1, second action section t2=1, maximum output percentage a%=80% and minimum output percentage b%
=20%, then control module 40 can determine shutdown temperature Toff=5, start-up temperature TS-d=7, first preset temperature Ts+d=10,
3rd preset temperature Tsf=the 11 and second preset temperature Tsmax=12, so as to obtain the air-cooled heat pump cold-hot water machine shown in Fig. 2
System adds ability output percentage during unloading to vary with temperature curve.
Second temperature detection module 30 detects the leaving water temperature of total outlet pipe or the return water temperature of total return pipe in real time, such as
Current leaving water temperature/the return water temperature of fruit is less than start-up temperature Ts-d, then in the control of control module 40 air-cooled heat pump cold-hot water machine system
Whole compressors be closed, that is, control air-cooled heat pump cold-hot water machine system do not start output；If currently go out water temperature
Degree/return water temperature is more than or equal to start-up temperature Ts-d, then the startup of the control air-cooled heat pump cold-hot water machine of control module 40 system is defeated
Go out.It is actually needed so as to basis and startup control is carried out to air-cooled heat pump cold-hot water machine system, is avoided meaningless startup and make
Into electric quantity loss.
During control module 40 controls air-cooled heat pump cold-hot water machine system to start output, its control logic follows A
→ B → C → D → E → F → C → B → A → G → H → I, wherein, it is air-cooled heat pump cold-hot water machine system by A → B → C → D → E
Loading Control process, by E → F → C → B → A → G → H → I be air-cooled heat pump cold-hot water machine system Unloading Control process.
Specifically, it is assumed that current leaving water temperature/return water temperature is T0, then added in air-cooled heat pump cold-hot water machine system
Carry in control process：As start-up temperature Ts-d≤T0≤ the first preset temperature Ts+dWhen, it is cold and hot that control module 40 obtains air-cooled heat pump
The ability output percentage of water dispenser system is X%, and it is rounding for N*X% that compressor, which opens number,；As the first preset temperature Ts+d＜
T0The second preset temperatures of ＜ TsmaxWhen, control module 40 obtains the ability output percentage of air-cooled heat pump cold-hot water machine system as most
Big output percentage a%, it is rounding for N*a% that compressor, which opens number,；As the second preset temperature Tsmax≤T0When, control module
Compressor in 40 control air-cooled heat pump cold-hot water machine systems all starts, i.e. the ability output of air-cooled heat pump cold-hot water machine system
For 100%.During air-cooled heat pump cold-hot water machine system carries out Unloading Control：As the 3rd preset temperature Tsf≤T0≤ the second is pre-
If temperature TsmaxWhen, control module 40 controls the compressor in air-cooled heat pump cold-hot water machine system all to start；When first default
Temperature Ts+d＜ T0The preset temperature T of ＜ the 3rdsfWhen, control module 40 obtains the ability output hundred of air-cooled heat pump cold-hot water machine system
It is maximum output percentage a% to divide ratio, and it is rounding for N*a% that compressor, which opens number,；As start-up temperature Ts-d≤T0≤ the first is pre-
If temperature Ts+dWhen, the ability output percentage that control module 40 obtains air-cooled heat pump cold-hot water machine system is X%, and compressor is opened
It is rounding for N*X% to open number；As shutdown temperature Toff＜ T0＜ start-up temperatures Ts-dWhen, control module 40 obtains air-cooled heat-pump cold
The ability output percentage of water-heating machine system is minimum output percentage b%, and it is rounding for N*b% that compressor, which opens number,.
And work as T0≤ shutdown temperature ToffWhen, control module 40 controls the compressor in air-cooled heat pump cold-hot water machine system complete
Portion closes, that is, controls air-cooled heat pump cold-hot water machine system to stop output.So as to realize to the leaving water temperature of total outlet pipe it is continuous,
Accurate control, avoid controlling high frequent start and stop and producing loss, and controlled according to user's request real-time, tunable, avoid pressing
The meaningless startup of contracting machine and cause electric quantity loss, and effectively avoid leaving water temperature fluctuation it is excessive, improve Consumer's Experience.
Air-cooled heat pump cold-hot water machine system according to embodiments of the present invention, the first temperature detecting module detection current environment temperature
Degree, second temperature detection module detect the leaving water temperature of total outlet pipe or the return water temperature of total return pipe, control module in real time
According to current environmental temperature and design temperature obtain ability output percentage when air-cooled heat pump cold-hot water machine system adds unloading with
Temperature variation curve, and add ability during unloading to export according to leaving water temperature/return water temperature and air-cooled heat pump cold-hot water machine system
Percentage varies with temperature ability output percentage when curve acquisition air-cooled heat pump cold-hot water machine system adds unloading, and according to
Ability output percentage obtains compressor and opens number, and opens number according to compressor and air-cooled heat pump cold-hot water machine system is entered
Row plus Unloading Control, so as to realize continuous, the accurate control of leaving water temperature, i.e., the need of user are determined based on leaving water temperature
Ask, and then accurately start the quantity of corresponding air-cooled heat pump cold-hot water machine, and adjusted in real time, be effectively prevent because delay adds
Leaving water temperature fluctuates caused by unloading, improves the experience of user.
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 (10)
1. a kind of air-cooled heat pump cold-hot water machine system adds Unloading Control method, it is characterised in that the air-cooled heat pump cold-hot water
Machine system includes multiple air-cooled heat pump cold-hot water machines, wherein, the outlet pipe of each air-cooled heat pump cold-hot water machine is each individually connected to
The total outlet pipe of the air-cooled heat pump cold-hot water machine system, the return pipe of each air-cooled heat pump cold-hot water machine are each individually connected to institute
Total return pipe of air-cooled heat pump cold-hot water machine system is stated, it is described to realize that the multiple air-cooled heat pump cold-hot water machine is connected in parallel
Unloading Control method is added to comprise the following steps：
Current environmental temperature is detected, and the air-cooled heat pump cold-hot water machine is obtained according to the current environmental temperature and design temperature
System adds ability output percentage during unloading to vary with temperature curve, wherein, according to the current environmental temperature and setting temperature
Degree obtains difference d, the first action section t1, second action section t2, maximum output percentage a% and minimum output percentage
B%, and according to difference d and design temperature TsDetermine start-up temperature TS-d, shut down return difference temperature ToffsetWith temperature controlling range T2d,
And according to the start-up temperature TS-d, shut down return difference temperature Toffset, temperature controlling range T2d, first action section t1, second
Act section t2, maximum output percentage a% and minimum output percentage b% obtain the air-cooled heat pump cold-hot water machine system and add
Ability output percentage during unloading varies with temperature curve；
The leaving water temperature of the total outlet pipe or the return water temperature of total return pipe are detected in real time；
Add ability output percentage during unloading according to the leaving water temperature/return water temperature and the air-cooled heat pump cold-hot water machine system
Ability during unloading is added to export percentage than varying with temperature air-cooled heat pump cold-hot water machine system described in curve acquisition, and according to institute
State ability output percentage and obtain compressor unlatching number；And
Number is opened according to the compressor air-cooled heat pump cold-hot water machine system is carried out to add Unloading Control.
2. air-cooled heat pump cold-hot water machine system according to claim 1 adds Unloading Control method, it is characterised in that right
When the air-cooled heat pump cold-hot water machine system carries out Loading Control, wherein,
If leaving water temperature/the return water temperature is more than or equal to default start-up temperature Ts-dIt is and default less than or equal to first
Temperature Ts+d, then according to the ability export percentage vary with temperature curve acquisition described in air-cooled heat pump cold-hot water machine system
Ability output percentage X%, it is rounding for N*X% that the compressor, which opens number, and N is the sum of air-cooled heat pump cold-hot water machine
Amount；
If leaving water temperature/the return water temperature is more than the first preset temperature Ts+dAnd it is less than the second preset temperature Tsmax, then
The ability output percentage for obtaining the air-cooled heat pump cold-hot water machine system is default maximum output percentage a%, the pressure
It is rounding for N*a% that contracting machine, which opens number,；
If leaving water temperature/the return water temperature is more than or equal to the second preset temperature Tsmax, then the air-cooled heat pump is controlled
Compressor in water chiller/heater system all starts.
3. air-cooled heat pump cold-hot water machine system according to claim 1 adds Unloading Control method, it is characterised in that right
When the air-cooled heat pump cold-hot water machine system carries out Unloading Control, wherein,
If leaving water temperature/the return water temperature is less than or equal to the second preset temperature TsmaxAnd more than or equal to the 3rd default temperature
Spend Tsf, then the compressor in the air-cooled heat pump cold-hot water machine system is controlled all to start；
If leaving water temperature/the return water temperature is less than the 3rd preset temperature TsfAnd it is more than the first preset temperature Ts+d, then obtain
Taking the ability of the air-cooled heat pump cold-hot water machine system, to export percentage be default maximum output percentage a%, the compression
It is rounding for N*a% that machine, which opens number, and N is the total quantity of air-cooled heat pump cold-hot water machine；
If leaving water temperature/the return water temperature is more than or equal to default start-up temperature Ts-dAnd less than or equal to described first
Preset temperature Ts+d, then according to the ability export percentage vary with temperature curve acquisition described in air-cooled heat pump cold-hot water machine system
The ability output percentage X% of system, it is rounding for N*X% that the compressor, which opens number,；
If leaving water temperature/the return water temperature is less than the default start-up temperature Ts-dAnd it is more than default shutdown temperature
Toff, then the ability output percentage for obtaining the air-cooled heat pump cold-hot water machine system is default minimum output percentage b%,
The compressor opens number rounding for N*b%, b ＜ a.
4. air-cooled heat pump cold-hot water machine system according to claim 3 adds Unloading Control method, it is characterised in that works as institute
State leaving water temperature/return water temperature and be less than or equal to the default shutdown temperature ToffWhen, control the air-cooled heat pump cold-hot water machine
Compressor Close All in system.
5. the air-cooled heat pump cold-hot water machine system plus Unloading Control method according to Claims 2 or 3, it is characterised in that
Do not given up by rounding with obtaining only to enter when the compressor opens number.
A kind of 6. air-cooled heat pump cold-hot water machine system, it is characterised in that including：
Multiple air-cooled heat pump cold-hot water machines, the outlet pipe of each air-cooled heat pump cold-hot water machine are each individually connected to the air-cooled heat pump
The total outlet pipe of water chiller/heater system, the return pipe of each air-cooled heat pump cold-hot water machine are each individually connected to the air-cooled heat-pump cold
Total return pipe of water-heating machine system, to realize that the multiple air-cooled heat pump cold-hot water machine is connected in parallel；
First temperature detecting module, for detecting current environmental temperature；
Second temperature detection module, for detecting the leaving water temperature of the total outlet pipe or the backwater of total return pipe in real time
Temperature；
Control module, add for obtaining the air-cooled heat pump cold-hot water machine system according to the current environmental temperature and design temperature
Ability output percentage during unloading varies with temperature curve, and according to the leaving water temperature/return water temperature and the air-cooled heat
Pump water chiller/heater system adds ability output percentage during unloading to vary with temperature air-cooled heat pump cold-hot water machine described in curve acquisition
System adds ability output percentage during unloading, and exports percentage according to the ability and obtain compressor unlatching number, and
Number is opened according to the compressor air-cooled heat pump cold-hot water machine system is carried out to add Unloading Control, wherein, according to described
Current environmental temperature and design temperature obtain difference d, the first action section t1, second action section t2, maximum output percentage
A% and minimum output percentage b%, and according to difference d and design temperature TsDetermine start-up temperature TS-d, shut down return difference temperature
ToffsetWith temperature controlling range T2d, and according to the start-up temperature TS-d, shut down return difference temperature Toffset, temperature controlling range
T2d, first action section t1, second action section t2, described in maximum output percentage a% and minimum output percentage b% obtain
Air-cooled heat pump cold-hot water machine system adds ability output percentage during unloading to vary with temperature curve.
7. air-cooled heat pump cold-hot water machine system according to claim 6, it is characterised in that cold and hot to the air-cooled heat pump
When water dispenser system carries out Loading Control, wherein,
If leaving water temperature/the return water temperature is more than or equal to default start-up temperature Ts-dIt is and default less than or equal to first
Temperature Ts+d, the control module then according to the ability export percentage vary with temperature curve acquisition described in air-cooled heat-pump cold
The ability output percentage X% of water-heating machine system, it is rounding for N*X% that the compressor, which opens number, and N is that air-cooled heat pump is cold and hot
The total quantity of water dispenser；
If leaving water temperature/the return water temperature is more than the first preset temperature Ts+dAnd it is less than the second preset temperature Tsmax, institute
State control module then obtain the air-cooled heat pump cold-hot water machine system ability output percentage be default maximum output percentage
Than a%, it is rounding for N*a% that the compressor, which opens number,；
If leaving water temperature/the return water temperature is more than or equal to the second preset temperature Tsmax, the control module then controls
Compressor in the air-cooled heat pump cold-hot water machine system all starts.
8. air-cooled heat pump cold-hot water machine system according to claim 6, it is characterised in that cold and hot to the air-cooled heat pump
When water dispenser system carries out Unloading Control, wherein,
If leaving water temperature/the return water temperature is less than or equal to the second preset temperature TsmaxAnd more than or equal to the 3rd default temperature
Spend Tsf, the control module then controls compressor in the air-cooled heat pump cold-hot water machine system all to start；
If leaving water temperature/the return water temperature is less than the 3rd preset temperature TsfAnd it is more than the first preset temperature Ts+d, it is described
The ability output percentage that control module then obtains the air-cooled heat pump cold-hot water machine system is default maximum output percentage
A%, it is rounding for N*a% that the compressor, which opens number, and N is the total quantity of air-cooled heat pump cold-hot water machine；
If leaving water temperature/the return water temperature is more than or equal to default start-up temperature Ts-dAnd less than or equal to described first
Preset temperature Ts+d, the control module then according to the ability export percentage vary with temperature curve acquisition described in air-cooled heat
The ability output percentage X% of pump water chiller/heater system, it is rounding for N*X% that the compressor, which opens number,；
If leaving water temperature/the return water temperature is less than the default start-up temperature Ts-dAnd it is more than default shutdown temperature
Toff, the ability output percentage that the control module then obtains the air-cooled heat pump cold-hot water machine system is that default minimum is defeated
Go out percentage b%, the compressor opens number rounding for N*b%, b ＜ a.
9. air-cooled heat pump cold-hot water machine system according to claim 8, it is characterised in that when the leaving water temperature/backwater
Temperature is less than or equal to the default shutdown temperature ToffWhen, the control module controls the air-cooled heat pump cold-hot water machine system
Compressor Close All in system.
10. the air-cooled heat pump cold-hot water machine system according to claim 7 or 8, it is characterised in that by rounding to obtain
State only to enter when compressor opens number and do not give up.
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| CN108626923B (en) * | 2017-03-15 | 2021-10-22 | 约克广州空调冷冻设备有限公司 | Control structure and control method of air conditioning system |
| CN108534394B (en) * | 2018-04-03 | 2020-08-28 | 安徽郁金香新能源科技有限公司 | Group control optimization control method for loading and unloading of double units of ground source heat pump |
| CN109489199B (en) * | 2018-11-08 | 2020-09-22 | 珠海格力电器股份有限公司 | Control method, device and system of air conditioning system and storage medium |
| CN110068107B (en) * | 2019-04-08 | 2021-04-13 | 广东纽恩泰新能源科技发展有限公司 | Modular control method |
| CN110513930B (en) * | 2019-09-05 | 2021-07-13 | 四川长虹空调有限公司 | Loading and unloading control method for variable-frequency compressor of air source heat pump unit |
| CN110686381B (en) * | 2019-10-15 | 2021-09-14 | 广东美的暖通设备有限公司 | Air conditioner control method and device and computer readable storage medium |
| CN111121219A (en) * | 2019-12-28 | 2020-05-08 | 维克（天津）有限公司 | Air-cooled module machine loading and unloading control mode |
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