CN107202398A - Central air conditioning water system control method, device and can storage medium - Google Patents
Central air conditioning water system control method, device and can storage medium Download PDFInfo
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 44
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Abstract
The invention provides a kind of central air conditioning water system control method, method comprises the following steps：The current operating condition of handpiece Water Chilling Units and/or the current operating condition of pump group are obtained respectively；Switch the number of units of cooling-water machine according to cold station running state parameter of the handpiece Water Chilling Units under current operating condition, and after the number of units switching of cooling-water machine adjustment handpiece Water Chilling Units the corresponding acquiescence switchable load rate of current operating condition；And/or, switch the quantity of water pump according to pump group running state parameter of the pump group under current operating condition, and the corresponding acquiescence of current operating condition of adjustment pump group switches water-carrying capacity after the quantity switching of water pump.Present invention also offers a kind of control device of central air conditioning water system.The central air conditioning water system control method and device of the present invention, improve handpiece Water Chilling Units and/or the overall efficiency of pump group, and then improve the efficiency of the central air conditioning water system.
Description
Technical field
The present invention relates to Heating, Ventilation and Air Conditioning (HVAC) Technology field, more particularly to a kind of central air conditioning water system control method, device and can
Storage medium.
Background technology
Usually, central air conditioning water system is made up of many handpiece Water Chilling Units, refrigerating water pump, cooling pump and cooling tower etc., each
All there is optimal operating condition in varied situations in different equipment.And traditional handpiece Water Chilling Units number of units control for adding machine at full capacity
System strategy so that handpiece Water Chilling Units are difficult to operate in most efficient rate of load condensate interval, so as to cause energy waste.
The content of the invention
In view of the problem of traditional handpiece Water Chilling Units control strategy is likely to result in energy waste, it is an object of the invention to provide
A kind of central air conditioning water system control method, device and can storage medium.
To achieve the above object, the present invention is adopted the following technical scheme that：
A kind of central air conditioning water system control method, methods described comprises the following steps：
The current operating condition of handpiece Water Chilling Units and/or the current operating condition of pump group are obtained respectively；
Switch the number of units of cooling-water machine according to cold station running state parameter of the handpiece Water Chilling Units under current operating condition, and
The corresponding acquiescence switchable load rate of current operating condition of the handpiece Water Chilling Units is adjusted after the number of units switching of the cooling-water machine；
And/or, switch the quantity of water pump according to pump group running state parameter of the pump group under current operating condition, and
The corresponding acquiescence switching water-carrying capacity of current operating condition of the pump group is adjusted after the quantity switching of the water pump.
In one of the embodiments, the cold station running state parameter according to the handpiece Water Chilling Units under current operating condition
The step of number of units for switching cooling-water machine, further comprises：
Calculated according to overall refrigerating effect of the handpiece Water Chilling Units under current operating condition and obtain being averaged for the handpiece Water Chilling Units
Rate of load condensate；
When the average load rate of the handpiece Water Chilling Units, which reaches that the current operating condition is corresponding, gives tacit consent to switchable load rate,
Then switch the number of units of the cooling-water machine.
In one of the embodiments, the current operation of the handpiece Water Chilling Units is adjusted after the number of units switching of the cooling-water machine
Operating mode it is corresponding acquiescence switchable load rate the step of further comprise：
Obtain the cold station total power value before the switching of cooling-water machine number of units and the cold station total power value after the switching of cooling-water machine number of units；
The cold station after cold station total power value and cooling-water machine number of units switching before being switched according to the cooling-water machine number of units is total
Performance number adjusts the corresponding acquiescence switchable load rate of the current operating condition of handpiece Water Chilling Units.
In one of the embodiments, cold station total power value and the cooling-water machine before being switched according to the cooling-water machine number of units
Cold station total power value after number of units switching adjusts the step of the corresponding acquiescence switchable load rate of the current operating condition of handpiece Water Chilling Units
Suddenly include：
The cold station after cold station total power value and cooling-water machine number of units switching before being switched according to the cooling-water machine number of units is total
Performance number, which is calculated, obtains the first power offset value；
When first power offset value and default first value and power reference are inconsistent, then the current working is adjusted
Corresponding acquiescence switching load factor, until first power offset value is placed in default first error range.
In one of the embodiments, the corresponding acquiescence switching load factor of the current working is adjusted to comprise the following steps：
When first power offset value is more than default first value and power reference, then current operating condition correspondence is heightened
Acquiescence switchable load rate, until first power offset value is placed in default first error range；
When first power offset value is less than default first value and power reference, then the current operating condition is turned down
Corresponding acquiescence switchable load rate, until first power offset value is placed in default first error range.
In one of the embodiments, the corresponding acquiescence switching load factor of the adjustment current working further comprises as follows
Step：
The switching load factor of the handpiece Water Chilling Units is divided into multiple load factors etc. according to default multiple reference load rates
Level；
It is when first power offset value is more than default first value and power reference, then current operating condition is corresponding
Acquiescence switchable load rate heightens one or more load factor grades；
It is when first power offset value is less than default first value and power reference, then current operating condition is corresponding
Acquiescence switchable load rate turns down one or more load factor grades.
In one of the embodiments, switched according to pump group running state parameter of the pump group under current operating condition
The step of quantity of water pump, includes：
Obtain current lift and current water-carrying capacity of the pump group under current operating condition；
When the current water-carrying capacity reaches that the corresponding acquiescence of the current lift switches water-carrying capacity, then switch the water pump
Quantity.
In one of the embodiments, the current operating condition pair of the pump group is adjusted after the quantity switching of the water pump
The step of acquiescence switching water-carrying capacity answered, further comprises：
Obtain the pump group performance number before the switching of water pump quantity and the pump group performance number after water pump quantity switching；
The pump group performance number after pump group performance number and water pump quantity switching before being switched according to the water pump quantity is adjusted
The whole current lift is corresponding to give tacit consent to switching water-carrying capacity.
In one of the embodiments, pump group performance number and the water pump quantity before being switched according to the water pump quantity are cut
Pump group performance number after changing, which adjusts the step of corresponding acquiescence of the current lift switches water-carrying capacity, also to be included：
The pump group performance number meter after pump group performance number and water pump quantity switching before being switched according to the water pump quantity
Calculate and obtain the second power offset value；
When second power offset value and default second value and power reference are inconsistent, then the current lift is adjusted
Corresponding acquiescence switching water-carrying capacity, until second power offset value is placed in default second error range.
In one of the embodiments, adjusting the step of corresponding acquiescence of the current lift switches water-carrying capacity includes：
When second power offset value is more than default second value and power reference, then current lift is heightened corresponding silent
Switching water-carrying capacity is recognized, until second power offset value is placed in default second error range；
When second power offset value is less than default second value and power reference, then current lift is turned down corresponding silent
Switching water-carrying capacity is recognized, until second power offset value is placed in default second error range.
In one of the embodiments, the step of corresponding acquiescence of the current lift switches water-carrying capacity is adjusted further to wrap
Include：
The switching water-carrying capacity of the pump group is divided into multiple flow grades according to default multiple reference water flow values；
It is when second power offset value is more than default second value and power reference, then the current lift is corresponding
Acquiescence switching water-carrying capacity heightens one or more flow grades；
It is when second power offset value is less than default second value and power reference, then the current lift is corresponding
Acquiescence switching water-carrying capacity turns down one or more flow grades.
Meanwhile, present invention also offers a kind of central air conditioning water system control device, including detection components, processor, deposit
Reservoir and the computer program being stored on the memory, the detection components are connected to the processor, the processing
Device is when performing the computer program, the step in the specific control method performed described in any of the above-described.
In addition, present invention also offers one kind can storage medium, be stored with the readable storage medium storing program for executing computer instruction,
The step instructed for performing in the control method described in any of the above-described.
The beneficial effects of the invention are as follows：
The present invention central air conditioning water system control method, device and can storage medium, transported according to handpiece Water Chilling Units currently
Cold station running state parameter under row operating mode switches the number of units of cooling-water machine, optimizes cooling-water machine number of units switchover policy, and in cold water
The corresponding acquiescence switchable load rate of current operating condition of adjustment handpiece Water Chilling Units after the number of units switching of machine so that the work(of handpiece Water Chilling Units
Changing value is consumed before and after the switching of cooling-water machine number of units close to zero, is born so that the handpiece Water Chilling Units can operate in optimal switching
Lotus rate, to improve the efficiency of handpiece Water Chilling Units, and then improves the efficiency of the central air conditioning water system.Meanwhile, central hollow of the invention
Water transfer system control method and device can also switch water according to pump group running state parameter of the pump group under current operating condition
The quantity of pump, control is optimized to the water pump quantity of pump group, and adjusts after the quantity switching of water pump the current operation of pump group
The corresponding acquiescence switching water-carrying capacity of operating mode so that the change of power consumption value of pump group is front and rear close to zero in the switching of water pump quantity, so that
The overall efficiency of pump group is improved, and then improves the efficiency of the central air conditioning water system.
Brief description of the drawings
Fig. 1 is the control flow chart of the embodiment of central air conditioning water system control method one of the present invention；
Fig. 2 is the control flow chart of the embodiment of handpiece Water Chilling Units one in central air conditioning water system control method of the invention；
Fig. 3 is the control flow chart of another embodiment of handpiece Water Chilling Units in central air conditioning water system control method of the invention；
Fig. 4 is the control flow chart of the embodiment of pump group one in central air conditioning water system control method of the invention；
Fig. 5 is the control flow chart of another embodiment of pump group in central air conditioning water system control method of the invention；
Fig. 6 is the structured flowchart of the embodiment of central air conditioning water system control device one of the present invention；
Fig. 7 is the structural representation of the embodiment of handpiece Water Chilling Units one in parallel in central air conditioning water system of the invention；
Fig. 8 is the structural representation of the embodiment of parallel pumps one in central air conditioning water system of the invention.
Embodiment
In order that technical scheme is clearer, below in conjunction with accompanying drawing, to the central air conditioning water system of the present invention
Control method, device and can storage medium be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain that the present invention is not intended to limit the present invention.It should be noted that in the case where not conflicting, the implementation in the application
Feature in example and embodiment can be mutually combined.
Usually, central air conditioning water system can include the handpiece Water Chilling Units and multiple water pumps of the parallel connection formation of multiple cooling-water machines simultaneously
Join the pump group formed.Fig. 7 is the schematic diagram of the embodiment of handpiece Water Chilling Units one of central air conditioning water system, wherein, the handpiece Water Chilling Units 200
Three cooling-water machines being set up in parallel can be included.Each cooling-water machine includes refrigerating water pump 210, cooling pump 230, the and of cooling tower 240
Main frame 220 (main frame includes evaporator 221 and condenser 222 etc.).Certainly, the handpiece Water Chilling Units 200 can also include more than three
Cooling-water machine.Further, detection components, including chilled water flow quantity sensor 270 are additionally provided with the handpiece Water Chilling Units 200, it is cold
Freeze water inflow temperature sensor 250 and chilled water leaving water temperature sensors 260.Fig. 8 is the pump group one of central air conditioning water system
The schematic diagram of embodiment, wherein, the pump group 300 can include three water pumps 310 for being arranged in parallel, certainly, and the pump group can be with
Including more than three water pumps.Further, detection components, including pump group inlet pressure sensing are additionally provided with the pump group 300
Device 320, pump group outlet pressure sensor 330 and pump group flow sensor 340.
As shown in figure 1, the invention provides a kind of central air conditioning water system control method, for above-mentioned central air-conditioning water system
In the handpiece Water Chilling Units of system in the unit number control and pump group of cooling-water machine water pump quantity control, to optimize above-mentioned central air-conditioning water system
The efficiency of system.Specifically, the above method may include steps of：
S010, the current operating condition that handpiece Water Chilling Units are obtained respectively and/or pump group current operating condition；Specifically, should
Handpiece Water Chilling Units can be formed by the N platforms cooling-water machine parallel connection currently opened, wherein, N >=1, N is positive integer.It is possible to further logical
Cross the chilled water inflow temperature for detecting the handpiece Water Chilling Units, chilled water leaving water temperature, chilled-water flow and cooling water leaving water temperature
The current operating condition of the handpiece Water Chilling Units is obtained Deng cooling parameters.Pump group can be by the shape in parallel of the M water pump in opening
Into, wherein, M >=1, M is positive integer, for example, pump group is formed by 3 water pump parallel connections.It is possible to further by detecting pump group
Lift and water-carrying capacity etc. determine the current operating condition of the pump group.
S020, the number of units for switching according to cold station running state parameter of the handpiece Water Chilling Units under current operating condition cooling-water machine,
And the corresponding acquiescence switchable load rate of current operating condition of handpiece Water Chilling Units is adjusted after the number of units switching of cooling-water machine.Specifically,
Cold station running state parameter can include the average load rate of handpiece Water Chilling Units.Pass through the above-mentioned control to handpiece Water Chilling Units so that cold
The change of power consumption value of water dispenser group is front and rear close to zero in the switching of cooling-water machine number of units, so that the handpiece Water Chilling Units can be operated in most
Excellent switchable load rate, to improve the efficiency of handpiece Water Chilling Units, and then improves the efficiency of the central air conditioning water system.
S030, and/or, switch the quantity of water pump according to pump group running state parameter of the pump group under current operating condition,
And the corresponding acquiescence of current operating condition of adjustment pump group switches water-carrying capacity after the quantity switching of water pump.The running status of pump group
Parameter can include the lift and water-carrying capacity of pump group.Pass through the above-mentioned control to pump group so that the change of power consumption value of pump group is in water
Close to zero before and after the switching of pump quantity, so as to improve the overall efficiency of pump group, and then the efficiency of the central air conditioning water system is improved.
In the present embodiment, the control of handpiece Water Chilling Units and the control of pump group can be with separate controls, can also Collaborative Control.
Illustrate the platform for switching cooling-water machine according to cold station running state parameter of the handpiece Water Chilling Units under current operating condition below in conjunction with the accompanying drawings
Count, and the corresponding acquiescence switchable load rate of current operating condition of handpiece Water Chilling Units is adjusted after the number of units switching of cooling-water machine, with reality
The detailed process that now handpiece Water Chilling Units are controlled.As shown in Fig. 2 having in above-mentioned control method to the rate-determining steps S020 of handpiece Water Chilling Units
Body comprises the following steps：
S100, obtain the formation of many cooling-water machines handpiece Water Chilling Units current operating condition and under current operating condition
Average load rate.Specifically, the current operating condition of handpiece Water Chilling Units can be cold under current operating condition according to handpiece Water Chilling Units
Freeze the cold station running state parameter such as water leaving water temperature and cooling water leaving water temperature to determine.The handpiece Water Chilling Units are under current operating condition
Average load rate can according to the overall refrigerating effect of handpiece Water Chilling Units calculate obtain.
S200, when the average load rate of handpiece Water Chilling Units reach current operating condition it is corresponding acquiescence switchable load rate when, then
Switch the number of units of cooling-water machine；Wherein, each operating condition is correspondingly arranged on acquiescence switchable load rate.Specifically, handpiece Water Chilling Units are worked as
Average load rate reach current operating condition it is corresponding acquiescence switchable load rate when, then increase cooling-water machine number of units, you can with
The number of units of current cooling-water machine is switched into N+1 platforms from current N platforms, after switching, the cooling-water machine that the handpiece Water Chilling Units are opened by N+1 platforms
Parallel connection is formed.
S300, cold station total power value and cold water board before being switched after the number of units of cooling-water machine switches according to cooling-water machine number of units
Cold station total power value after number switching adjusts the corresponding acquiescence switchable load rate of current operating condition.Specifically, it can obtain first
Take the cold station total power value before the number of units of cooling-water machine and the cold station total power value after the switching of cooling-water machine number of units.It is possible to further
The cold station total power value after cold station total power value and the switching of cooling-water machine number of units before being switched according to cooling-water machine number of units, which is calculated, obtains work(
Rate deviation, further adjusts the corresponding switchable load rate of current working, to cause cooling-water machine number of units according to the power offset value
Cold station total power value before and after switching is kept approximately constant, so as to improve the efficiency of handpiece Water Chilling Units.
In one embodiment, as shown in figure 3, above-mentioned steps S100 further comprises following steps：
S110, the current chilled water inflow temperature for obtaining handpiece Water Chilling Units, current chilled water leaving water temperature, current chilled water flow
Amount and current cooling water leaving water temperature.Specifically, the chilled water inflow temperature and chilled water leaving water temperature of handpiece Water Chilling Units can lead to
The detection such as the temperature sensor being arranged at the freezing supply mains of handpiece Water Chilling Units or temperature-sensitive bag is crossed to obtain；Chilled-water flow can lead to
Cross the detection acquisition such as flow sensor for being arranged on freezing supply mains place.Cooling water leaving water temperature can be the cold of every cooling-water machine
But the equal leaving water temperature of level, cooling supply mains leaving water temperature or cooling supply mains's Inlet and outlet water temperature averages etc..
S120, current operating condition determined according to current chilled water leaving water temperature and current cooling water leaving water temperature.Specifically
Ground, can be according to chilled water leaving water temperature and cooling water water outlet when the current cooling-water machine operation number of units of the handpiece Water Chilling Units is N platforms
Temperature carries out region division, enters exhaustive during row-column list to the possible operation area of handpiece Water Chilling Units (i.e. operating condition), obtains current N
The operating mode table of the handpiece Water Chilling Units of platform cooling-water machine formation, as shown in table 1 below, the operating mode table can be preformed, it is possible to deposit
Storage is in memory or server.Further, the cooling-water machine is corresponded in the case where different cooling-water machines opens quantity and set
It is equipped with above-mentioned operating mode table.If the sum of cooling-water machine is K (K >=1, and K is positive integer, and N≤K) in the handpiece Water Chilling Units, then on
It is K-1 to state the quantity of operating mode table.K-1 operating mode table can be stored in memory or server, can be according to current cold
The cooling-water machine number of units of water dispenser group selects corresponding operating mode table.
For example, when there is the handpiece Water Chilling Units N platforms to be in the cooling-water machine of opening, its corresponding operating mode table is as follows：
Table 1
Wherein, AA~HE in table 1 is used to represent in different operating condition codings, table 1 that five-pointed star to be used to identify currently
The current operating condition of the current operation area of the handpiece Water Chilling Units, the i.e. handpiece Water Chilling Units.It is possible to further according to current acquisition
Chilled water leaving water temperature and the cooling water leaving water temperature that currently obtains matched with upper table 1, so that it is determined that the handpiece Water Chilling Units
Current operating condition.For example, when the current chilled water leaving water temperature of the handpiece Water Chilling Units is 7 DEG C~8 DEG C, and current cooling water goes out
Coolant-temperature gage is 33 DEG C~35 DEG C, then the current operating condition that the handpiece Water Chilling Units are determined by searching for above-mentioned table 1 is operating mode EC.
S130, according to the current chilled-water flow under current operating condition, current chilled water inflow temperature and current freezing
Water leaving water temperature calculates overall refrigerating effect of the freezing unit under current operating condition；Specifically, the calculation formula of overall refrigerating effect is such as
Under：
Overall refrigerating effect=current chilled-water flow × water density × (current chilled water inflow temperature-current chilled water water outlet
Temperature).
S140, the average load rate according to overall refrigerating effect calculating acquisition handpiece Water Chilling Units.Specifically, the handpiece Water Chilling Units are averaged
The rated cooling capacity sum of rated cooling capacity sum=overall refrigerating effect/N platform main frames of rate of load condensate=overall refrigerating effect/N platform cooling-water machines.
In one embodiment, as shown in figure 3, above-mentioned steps 300 can further include：
S310, according to cooling-water machine number of units switch before cold station total power value and cooling-water machine number of units switching after cold station general power
Value, which is calculated, obtains the first power offset value.Specifically, the cold station total power value, the work(can be obtained before the switching of cooling-water machine number of units
Rate value can be the whole power consumption of N platform cooling-water machines, including All hosts, all refrigerating water pumps, all cooling pumps and all cold
But the power consumption of tower.The cold station total power value can be obtained after the switching of cooling-water machine number of units, the performance number can be N+1 platform cold water
The whole power consumption of machine, including All hosts, all refrigerating water pumps, the power consumption of all cooling pumps and all cooling towers.This
One power offset value is equal to the cold station general power after the cold station total power value before cooling-water machine number of units switches switches with cooling-water machine number of units
The difference of value.
S320, judge whether the first power offset value is consistent with default first value and power reference；Wherein, the first power is joined
Examine value to prestore on a memory, the first value and power reference is more than zero.When the first power offset value and the first value and power reference
When inconsistent, such as the first power offset value is more than the first value and power reference, or the first power offset value is less than the first power reference
During value, then step S330 is performed, the corresponding acquiescence switching load factor of current working of handpiece Water Chilling Units is adjusted, until the first power is inclined
Difference is placed in default first error range.Above-mentioned first error range can be (0,0.5).Further, when the first work(
When rate deviation and inconsistent the first value and power reference, then the corresponding acquiescence switching load of current working of handpiece Water Chilling Units is adjusted
Rate, until the first power offset value levels off to 0.When the first power offset value is consistent with the first value and power reference, i.e., when first
When power offset value is equal to the first value and power reference, the corresponding acquiescence switching of current operating condition of handpiece Water Chilling Units can be kept negative
Load rate is constant.
Further, above-mentioned steps S330 also comprises the following steps：
S331, judge the first power offset value whether be more than default first value and power reference；
When the first power offset value is more than default first value and power reference, then step S332 is performed, current fortune is heightened
The corresponding acquiescence switchable load rate of row operating mode, until the first power offset value is placed in default first error range.Alternatively,
Above-mentioned steps S332 is specially：The corresponding acquiescence switchable load rate of current operating condition is heightened, until the first power offset value becomes
It is bordering on 0.Further, the switching load factor of handpiece Water Chilling Units can be divided into multiple negative by default multiple reference load rates
Load rate grade；It is when the first power offset value is more than default first value and power reference, then current operating condition is corresponding silent
Recognize switchable load rate and heighten one or more load factor grades, until the first power offset value levels off to 0, so that in cold water
Before and after the number of units switching of machine, the power consumption of handpiece Water Chilling Units keeps constant, to realize the Energy Saving Control of the central air conditioning water system.
When the first power offset value is less than default first value and power reference, then step S333 is performed, current fortune is turned down
The corresponding acquiescence switchable load rate of row operating mode, until first power offset value is placed in default first error range.Can
Selection of land, above-mentioned steps S333 is specially：The corresponding acquiescence switchable load rate of current operating condition is turned down, until the first power deviation
Value levels off to 0.Further, when the first power offset value is less than default first value and power reference, then will currently it run
The corresponding acquiescence switchable load rate of operating mode turns down one or more load factor grades, until the first power offset value levels off to 0, from
And cause before and after the number of units switching of cooling-water machine, the power consumption of handpiece Water Chilling Units keeps constant, to realize the central air conditioning water system
Energy Saving Control.
Born for example, can be 7 by the power switched load partition of handpiece Water Chilling Units by default multiple reference load rates
Load rate grade, shown in table 2 specific as follows：
Table 2
As shown in upper table 2, the load factor grade of the switching load factor of handpiece Water Chilling Units is followed successively by from small to large：55%~
60%, 60%~65%, 65%~70%, 70%~75%, 75%~80%, 80%~85% and 85%~90%.Can
Selection of land, the load factor grade of the switching load factor of above-mentioned handpiece Water Chilling Units may be arranged as other possible scopes, specifically can root
It is determined according to the practical operation situation of handpiece Water Chilling Units.The current switching that five-pointed star in table 2 is used to identify the handpiece Water Chilling Units is born
Lotus rate.Illustrate the regulation process of the cooling-water machine number of units and switching load factor to the handpiece Water Chilling Units with reference to Tables 1 and 2.
First, according to the possibility excursion of the chilled water leaving water temperature with N platform cooling-water machine handpiece Water Chilling Units and cooling
The possibility excursion of water leaving water temperature determines the operating condition table of the handpiece Water Chilling Units, as shown in Table 1.Then, it is cold according to this
The current chilled water leaving water temperature and current cooling water leaving water temperature of water dispenser group determine the current operating condition of the handpiece Water Chilling Units.It is false
If the current operating condition of the handpiece Water Chilling Units is the operating mode EC in table 1, the corresponding acquiescence switchable load rates of operating mode EC is in tables 2
The 70%~75% of mark.
Secondly, gone out by current chilled water inflow temperature, current chilled-water flow and the current chilled water of the handpiece Water Chilling Units
Coolant-temperature gage etc. can calculate the overall refrigerating effect for obtaining the handpiece Water Chilling Units, calculated according to overall refrigerating effect obtain the handpiece Water Chilling Units afterwards
Average load rate.Afterwards, judge whether the average load rate of the handpiece Water Chilling Units reaches the corresponding acquiescence switching of current operating condition
Rate of load condensate, that is, judge whether the average load rate reaches 70%~75%.70% is reached when the average load rate of handpiece Water Chilling Units~
When 75%, then increase the number of units of the cooling-water machine of unlatching, the number of units of cooling-water machine is switched into N+1 platforms by N platforms, after switching, the cold water
The cooling-water machine parallel connection that unit is opened by N+1 platforms is formed.
Again, the cold station total power value (E1 in such as table 2) before the switching of record cooling-water machine number of units and the switching of cooling-water machine number of units
Cold station total power value (E2 in such as table 2) afterwards, and calculate the first power offset value of acquisition (△ E1~△ E7 in such as table 2).
Afterwards, first power offset value and default first value and power reference size can be compared, wherein, first value and power reference
More than 0.Specifically, it is when first power offset value is more than the first value and power reference, then current operating condition is corresponding silent
Recognize switchable load rate and heighten a load factor grade, so circulation, until the first power offset value levels off to 0.Such as the institute of upper table 2
Show, i.e., operating mode EC acquiescence switchable load rate is now re-set as 75%~80%.When first power offset value is less than
During the first value and power reference, then the corresponding acquiescence switchable load rate of current operating condition is turned down into a load factor grade, so
Circulation, until the first power offset value levels off to 0.Operating mode EC acquiescence switchable load rate is now re-set as 65%~
70%.When first power offset value is equal to the first value and power reference, current acquiescence switchable load rate can be maintained constant,
Illustrate that now the handpiece Water Chilling Units have been operated in optimal cold switching load factor.
So, when the handpiece Water Chilling Units are run again, and the number of units for the cooling-water machine opened is N platforms, and handpiece Water Chilling Units is current
When operating condition is still operating mode EC, then judge whether to need to increase the cold water opened according to the acquiescence switchable load rate after the renewal
Machine quantity.For example, when the handpiece Water Chilling Units with N platform cooling-water machines are started shooting run on above-mentioned operating mode EC again, operating mode EC's is silent
It can be 75%~80% to recognize switchable load rate.Above-mentioned steps S200~step S300 can be performed afterwards.
Further, if the corresponding acquiescence switchable load rate of current operating condition in highest load factor grade or most
Low-load rate grade, then can maintain current acquiescence switchable load rate constant.If for example, the corresponding acquiescence of current operating condition
Switchable load rate is 85%~90%, then when the first power offset value is more than the first value and power reference, can keep current fortune
The corresponding acquiescence switchable load rate of row operating mode is constant, i.e., can not now update the corresponding acquiescence switchable load of current operating condition
Rate.Similarly, if the corresponding default load rate of current operating condition is 55%~60%, it is less than first in the first power offset value
During value and power reference, the corresponding acquiescence switchable load rate of current operating condition can also be kept constant.
Further, above-mentioned control method also includes reducing the cooling-water machine number of units in opening in handpiece Water Chilling Units
Step.Alternatively, when the cooling-water machine number of units of the handpiece Water Chilling Units is kept to N platforms from N+1 platforms, formed by measuring N+1 platform cooling-water machines
Handpiece Water Chilling Units average load rate, and according to the average load rate and certain proportionality coefficient (such as can be (N+1)/N) meter
The cooling-water machine number of units for calculating acquisition handpiece Water Chilling Units is reduced to the average load rate of the handpiece Water Chilling Units after N platforms.It is possible to further basis
The Rate of average load of the handpiece Water Chilling Units of N+1 platforms cooling-water machine formation calculates with proportionality coefficient (N+1)/N product and obtains cold water board
Number is reduced to the average load rate of the handpiece Water Chilling Units after N platforms.When the Rate of average load of the handpiece Water Chilling Units of N+1 platforms cooling-water machine formation reaches
To the acquiescence switchable load rate (as shown in table 2) of N platform cold, then perform and subtract machine operation, by the cooling-water machine number of units of handpiece Water Chilling Units from N
+ 1 is kept to N platforms.
Experimental verification shows, the cooling-water machine number of units of handpiece Water Chilling Units is controlled by the above method, can be improved in this
The overall efficiency of air-conditioner water system is entreated, specifically, the overall efficiency of the water system can improve 5%~20%.
As a further improvement, above-mentioned control method also includes the pump to parallel water pump formation in central air conditioning water system
The control of group.The control to pump group separately can individually be controlled with the control of above-mentioned handpiece Water Chilling Units herein, can also Synchronization Control.
Specifically, illustrated below in conjunction with accompanying drawing and water pump is switched according to pump group running state parameter of the pump group under current operating condition
Quantity, and water pump quantity switching after adjustment pump group current operating condition it is corresponding acquiescence switching water-carrying capacity, with realize
To the control process of pump group.As shown in figure 4, specifically including following step to the rate-determining steps S030 of pump group in above-mentioned control method
Suddenly：
S400, the current lift and current water-carrying capacity for obtaining the pump group that multiple water pumps are formed, wherein, each lift correspondence is set
It is equipped with acquiescence switching water-carrying capacity.Specifically, can be by being arranged on the inlet pressure detection means 320 of pump group import, such as pressure
Sensor etc., detects the inlet pressure of pump group；By being arranged on the outlet pressure detection means 330 that pump group is exported, such as pressure is passed
Sensor etc., detects the outlet pressure of pump group；Meanwhile, by the current amount detecting device 340 being arranged at pump group import or export,
Such as flow sensor, detection obtains the water-carrying capacity of pump group.It is possible to further obtain pump group inlet pressure, pump according to detection
The water-carrying capacity of group outlet pressure and pump group calculates the lift for obtaining pump group.
If S500, current water-carrying capacity reach that the corresponding acquiescence of current lift switches water-carrying capacity, switch the quantity of water pump；
Specifically, if current water-carrying capacity reaches that the corresponding acquiescence of current lift switches water-carrying capacity, the quantity of water pump is increased, you can with
The quantity of current water pump is switched into M+1 platforms from M platforms, after switching, the water pump that the pump group has M+1 unlatching is composed in parallel.
S600, water pump quantity switching after, according to water pump quantity switch before pump group performance number and water pump quantity switch
Pump group performance number afterwards adjusts the corresponding acquiescence switching water-carrying capacity of current lift.Specifically, water pump quantity can be obtained first to cut
The pump group performance number after pump group performance number and the switching of water pump quantity before changing.It is alternatively possible to before being switched according to water pump quantity
Pump group performance number after pump group performance number and the switching of water pump quantity, which is calculated, obtains power offset value, and one is entered according to the power offset value
The corresponding water-carrying capacity of the current lift of successive step, to cause the pump group performance number before and after the switching of pump group quantity to be kept approximately constant, from
And improve the efficiency of pump group.
Further, as shown in figure 5, above-mentioned steps S600 also includes：
S610, according to water pump quantity switch before pump group performance number and water pump quantity switching after pump group performance number calculate obtain
Obtain the second power offset value；Specifically, a pump group performance number can be recorded before the switching of water pump quantity, and is cut in water pump quantity
A pump group performance number is recorded after changing again.Second power offset value is equal to the pump group performance number before water pump quantity switches and water
The difference of pump group performance number after the switching of pump quantity.
S620, judge whether the second power offset value is consistent with default second value and power reference；Specifically, second work(
Rate reference value can be pre-stored within memory, and second value and power reference is more than zero.Alternatively, when the second power offset value
With the second value and power reference it is inconsistent when, such as the second power offset value is more than the second value and power reference, or the second power offset value
During less than the second value and power reference, then step S630 is performed, the corresponding acquiescence switching water-carrying capacity of current lift is adjusted, until second
Power offset value is placed in default second error range.Wherein, the second error range can be (0,0.5).Further, when
When the second power offset value and inconsistent the second value and power reference, the corresponding acquiescence switching water-carrying capacity of current lift is adjusted, until
Second power offset value levels off to 0.When the second power offset value is consistent with the second value and power reference, i.e. second power offset value etc.
When the second value and power reference, the corresponding acquiescence switching water-carrying capacity of current lift of pump group can be kept constant.
Further, above-mentioned steps S630 also comprises the following steps：
S631, judge the second power offset value whether be more than default second value and power reference；
When the second power offset value is more than default second value and power reference, then step S632 is performed, heightens and currently raises
The corresponding acquiescence switching water-carrying capacity of journey, until second power offset value is placed in default second error range.Alternatively,
Above-mentioned steps S632 is specially：The corresponding acquiescence switching water-carrying capacity of current lift is heightened, until the second power offset value levels off to
0.Further, the switching water-carrying capacity of pump group can be divided into multiple flow grades by default multiple reference water-carrying capacity；
When the second power offset value is more than default second value and power reference, then the corresponding acquiescence switching water-carrying capacity of current lift is adjusted
High one or more flow grades, until the second power offset value levels off to 0, to improve the corresponding acquiescence switching water of current lift
Flow.
When the second power offset value is less than default second value and power reference, then step S633 is performed, turns down and currently raises
The corresponding acquiescence switching water-carrying capacity of journey, until the second power offset value is placed in default second error range.Alternatively, it is above-mentioned
Step S633 is specifically as follows：The corresponding acquiescence switching water-carrying capacity of current lift is turned down, until the second power offset value levels off to
0.Further, when the second power offset value is less than default second value and power reference, then by the corresponding acquiescence of current lift
Switching water-carrying capacity turns down one or more flow grades, until the second power offset value levels off to 0, to reduce current lift correspondence
Acquiescence switching water-carrying capacity.
, can raising according to the pump group when the number of units of the water pump in opening of pump group is M platforms in the present embodiment
Journey and water-carrying capacity enter row-column list exhaustion to the possible operation area of pump group (i.e. operating condition), obtain current M platforms water pump formation
The operating mode table of pump group, as shown in table 3 below, the operating mode table can be preformed, it is possible to be stored in memory or server
In.Further, the pump group is correspondingly arranged on above-mentioned operating mode table in the case where different water pumps opens quantity.If the pump group
The sum of middle water pump is L (L >=1, and L is positive integer, and M≤L), then the quantity of above-mentioned operating mode table is L-1.Above-mentioned L-1
Individual operating mode table can be stored in memory or server, can select relative according to the quantity of water pump in current pump group
The operating mode table answered, to determine the current operating condition of the pump group.
For example, when the pump group has the M platforms water pump in opening in parallel, default multiple references can be passed through
The switching water-carrying capacity of pump group is divided into 5 flow grades by water-carrying capacity, shown in table 3 specific as follows：
Table 3
As shown in upper table 3, the flow grade of pump group is followed successively by from small to large：100l/s~120l/s, 120l/s~140l/
S, 140l/s~160l/s, 160l/s~180l/s, and 180l/s~200l/s.Each five-pointed star in table 3 is used to identify
The corresponding acquiescence switching water-carrying capacity of current lift of pump group.For example, when the lift of pump group is 15m~17m, then its is corresponding silent
It is 180l/s~200l/s to recognize switching water-carrying capacity.When the lift of pump group is 17m~19m, then its corresponding acquiescence switches current
Measure as 100l/s~120l/s.Wherein, the unit of water-carrying capacity is the liter/second (l/s).Illustrate with reference to upper table 3 to the pump group
Water pump quantity and the regulation process for switching water-carrying capacity.
For example, when the current water pump quantity of pump group is M platforms, can be according to the lift and water-carrying capacity of pump group to pump group
Possible operation area (operating condition) is divided, and obtains the pump group operating mode table as shown in upper table 3, specific as shown in table 3.
It is possible, firstly, to obtain pump group according to the inlet pressure of pump group, the exit pressure levels of pump group and pump group flow
Current lift.The corresponding acquiescence switching water-carrying capacity of current lift can be known by inquiring about upper table 3 according to current lift.Such as, pump group
When current lift is 17m~19m, the acquiescence switching water-carrying capacity of pump group is 160l/s~180l/s.Pump group is may determine that afterwards
Whether current water-carrying capacity reaches the corresponding acquiescence switching water-carrying capacity of current lift, that is, judges whether the current water-carrying capacity of pump group reaches
160l/s~180l/s.When the current water-carrying capacity of pump group reaches 160~180, then increase the water pump quantity of unlatching, by water pump
Quantity switches to M+1 by M, and after switching, current pump group is formed in parallel by M+1 water pump.
Secondly, the pump group performance number (the performance number E1 in such as table 3) before the switching of record water pump quantity and the switching of water pump quantity
Pump group performance number (the performance number E2 in such as table 3) afterwards, which is calculated, obtains the second power offset value (△ E11~△ in such as table 3
E55).Compare the size of second power offset value and default second value and power reference, to obtain the switching water-carrying capacity of pump group
Regulated quantity.Specifically, when the second power offset value is more than the second value and power reference, then the corresponding acquiescence of current lift is switched
Water-carrying capacity heightens a flow grade, so circulation, until the second power offset value levels off to 0.For example, when the second power deviation
When value is more than the second value and power reference, the corresponding acquiescence switching water-carrying capacity of current lift 17m~19m can be reset to 180l/s
~200l/s, so circulation, until the second power offset value levels off to 0.When the second power offset value is less than the second power reference
During value, then the corresponding acquiescence switching water-carrying capacity of current lift is turned down into a flow grade, so circulation, until the second power is inclined
Difference levels off to 0.For example, when the second power offset value is less than the second value and power reference, can be by current lift 17m~19m
Corresponding acquiescence switching water-carrying capacity is reset to 140l/s~160l/s, so circulation, until the second power offset value levels off to 0.
When second power offset value is equal to the second value and power reference, then the corresponding acquiescence switching water-carrying capacity of current lift can be kept
It is constant.
So, when the pump group is run again, and the quantity for the water pump opened is M platforms, and the current lift of pump group is still 17m
During~19m, then judge whether to need to increase the water pump quantity opened according to the acquiescence switching water-carrying capacity after the renewal.For example, working as
During current lift 17m~19m of the pump group formed by the parallel connection of M platforms water pump, then its corresponding acquiescence switching water-carrying capacity can be
180l/s~200l/s, is adjusted according to above-mentioned steps S500~step S600, so that the pump group operates in optimal water pump afterwards
Switch the pump group energy consumption in water-carrying capacity, reduction water pump quantity handoff procedure, realize the purpose of Energy Saving Control.
Further, if the corresponding acquiescence switching water-carrying capacity of current lift is maximum stream flow grade or minimum discharge grade
When, it can now keep the corresponding acquiescence switching water-carrying capacity of current lift constant.For example, when current lift is 15m~17m,
Its corresponding acquiescence switching water-carrying capacity is 180l/s~200l/s, and acquiescence switching water-carrying capacity has reached highest water-carrying capacity etc.
Level.Now, when the second power offset value is more than the second value and power reference, the corresponding acquiescence switching current of the lift can be kept
Amount is constant.
Further, the step of above-mentioned control method also includes reducing the water pump quantity for being in opening in pump group.
Alternatively, when the water pump quantity in pump group is kept to M platforms from M+1 platforms, the current of the pump group by measuring the formation of M+1 platforms water pump
Amount.When the water-carrying capacity of the pump group of M+1 platforms water pump formation reaches the acquiescence switching water-carrying capacity (as shown in table 3) of M platform water pumps, then perform
Subtract machine operation, the water pump quantity of pump group is kept to M platforms from M+1 platforms.
Experimental verification shows, the water pump quantity of pump group is controlled by the above method, the central air-conditioning can be improved
The overall efficiency of water system, specifically, the overall efficiency of the central air conditioning water system can improve 5%~10%.
One of ordinary skill in the art will appreciate that realize all or part of flow in above-described embodiment method, being can be with
The hardware of correlation is instructed to complete by computer program, described program can be stored in a computer read/write memory medium
In, the program is upon execution, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, described storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..
Meanwhile, as shown in fig. 6, one embodiment of the invention additionally provides a kind of central air conditioning water system control device 100, bag
Include detection components 110, processor 120, memory 130 and the computer program being stored on memory 130, detection components
110 are connected to processor 120, and detection components 110 can include the chilled water inflow temperature detection means of handpiece Water Chilling Units, chilled water
Outlet water temperature detecting device, cooling water outlet water temperature detecting device and chilled water flow amount detecting device.The detection components 110 may be used also
With including pump group inlet pressure detection means, pump group outlet pressure detection means and pump group flow detector.Temperature therein
Detection means can use temperature sensor or temperature-sensitive bag etc., and above-mentioned pressure-detecting device can use pressure sensor etc.,
Above-mentioned flow detector can be using flow sensor etc..Specifically, processor 120 is when performing computer program, tool
Step in the control method of any of the above-described embodiment of body execution.
In the present embodiment, step in the control process and the above method of 100 pairs of central air conditioning water systems of control device
S010~S030 is consistent.Specifically, above-mentioned control device 100 is to the step in the control process and the above method of handpiece Water Chilling Units
S100~step S300 is corresponding, and its specific work process can be found in described above.Above-mentioned control device 100 is to pump group
Control process is corresponding with step S400~S600 in the above method, and its specific work process can be found in described above.
In addition, one embodiment of the invention additionally provide one kind can storage medium, be stored with the readable storage medium storing program for executing meter
Calculation machine instruct, it is described instruct for perform any of the above-described embodiment control method in step.Wherein, described storage medium
Can be magnetic disc, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random
Access Memory, RAM) etc..
The present invention central air conditioning water system control method, device and can storage medium, transported according to handpiece Water Chilling Units currently
Cold station running state parameter under row operating mode switches the number of units of cooling-water machine, optimizes cooling-water machine number of units switchover policy, and in cold water
The corresponding acquiescence switchable load rate of current operating condition of adjustment handpiece Water Chilling Units after the number of units switching of machine so that the work(of handpiece Water Chilling Units
Changing value is consumed before and after the switching of cooling-water machine number of units close to zero, is born so that the handpiece Water Chilling Units can operate in optimal switching
Lotus rate, to improve the efficiency of handpiece Water Chilling Units, and then improves the efficiency of the central air conditioning water system.Meanwhile, central hollow of the invention
Water transfer system control method and device can also switch water according to pump group running state parameter of the pump group under current operating condition
The quantity of pump, control is optimized to the water pump quantity of pump group, and adjusts after the quantity switching of water pump the current operation of pump group
The corresponding acquiescence switching water-carrying capacity of operating mode so that the change of power consumption value of pump group is front and rear close to zero in the switching of water pump quantity, so that
The overall efficiency of pump group is improved, and then improves the efficiency of the central air conditioning water system.
Embodiment described above only expresses the several embodiments of the present invention, and it describes more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (13)
1. a kind of central air conditioning water system control method, it is characterised in that methods described comprises the following steps：
The current operating condition of handpiece Water Chilling Units and/or the current operating condition of pump group are obtained respectively；
Switch the number of units of cooling-water machine according to cold station running state parameter of the handpiece Water Chilling Units under current operating condition, and in institute
The corresponding acquiescence switchable load rate of current operating condition of the handpiece Water Chilling Units is adjusted after the number of units switching for stating cooling-water machine；
And/or, switch the quantity of water pump according to pump group running state parameter of the pump group under current operating condition, and in institute
The corresponding acquiescence switching water-carrying capacity of current operating condition of the pump group is adjusted after the quantity switching for stating water pump.
2. control method according to claim 1, it is characterised in that according to the handpiece Water Chilling Units under current operating condition
Cold station running state parameter switch cooling-water machine number of units the step of further comprise：
The average load for obtaining the handpiece Water Chilling Units is calculated according to overall refrigerating effect of the handpiece Water Chilling Units under current operating condition
Rate；
When the average load rate of the handpiece Water Chilling Units, which reaches that the current operating condition is corresponding, gives tacit consent to switchable load rate, then cut
Change the number of units of the cooling-water machine.
3. control method according to claim 1, it is characterised in that adjust described after the number of units switching of the cooling-water machine
The step of current operating conditions of handpiece Water Chilling Units corresponding acquiescence switchable load rate, further comprises：
Obtain the cold station total power value before the switching of cooling-water machine number of units and the cold station total power value after the switching of cooling-water machine number of units；
The cold station general power after cold station total power value and cooling-water machine number of units switching before being switched according to the cooling-water machine number of units
The corresponding acquiescence switchable load rate of the value adjustment current operating condition of handpiece Water Chilling Units.
4. control method according to claim 3, it is characterised in that the cold station before being switched according to the cooling-water machine number of units is total
It is corresponding that cold station total power value after performance number and cooling-water machine number of units switching adjusts the current operating condition of handpiece Water Chilling Units
The step of acquiescence switchable load rate, includes：
The cold station general power after cold station total power value and cooling-water machine number of units switching before being switched according to the cooling-water machine number of units
Value, which is calculated, obtains the first power offset value；
When first power offset value and default first value and power reference are inconsistent, then working as the handpiece Water Chilling Units is adjusted
Preceding operating mode is corresponding to give tacit consent to switching load factor, until first power offset value is placed in default first error range.
5. control method according to claim 4, it is characterised in that the corresponding acquiescence switching of the adjustment current working is negative
Load rate comprises the following steps：
When first power offset value is more than default first value and power reference, then current operating condition is heightened corresponding silent
Switchable load rate is recognized, until first power offset value is placed in default first error range；
When first power offset value is less than default first value and power reference, then the current operating condition correspondence is turned down
Acquiescence switchable load rate, until first power offset value is placed in default first error range.
6. control method according to claim 5, it is characterised in that the corresponding acquiescence switching of the adjustment current working is negative
Load rate further comprises following steps：
The switching load factor of the handpiece Water Chilling Units is divided into multiple load factor grades according to default multiple reference load rates；
When first power offset value is more than default first value and power reference, then by the corresponding acquiescence of current operating condition
Switchable load rate heightens one or more load factor grades；
When first power offset value is less than default first value and power reference, then by the corresponding acquiescence of current operating condition
Switchable load rate turns down one or more load factor grades.
7. control method according to claim 1, it is characterised in that according to pump of the pump group under current operating condition
The step of group running state parameter switches the quantity of water pump includes：
Obtain current lift and current water-carrying capacity of the pump group under current operating condition；
When the current water-carrying capacity reaches that the corresponding acquiescence of the current lift switches water-carrying capacity, then switch the number of the water pump
Amount.
8. control method according to claim 1, it is characterised in that adjust the pump after the quantity switching of the water pump
The step of corresponding acquiescence of current operating condition of group switches water-carrying capacity further comprises：
Obtain the pump group performance number before the switching of water pump quantity and the pump group performance number after water pump quantity switching；
The pump group performance number after pump group performance number and water pump quantity switching before being switched according to the water pump quantity adjusts institute
State the corresponding acquiescence switching water-carrying capacity of current lift.
9. control method according to claim 8, it is characterised in that the pump group power before being switched according to the water pump quantity
It is worth the step of pump group performance number adjustment current lift after switching with the water pump quantity is corresponding to give tacit consent to switching water-carrying capacity
Also include：
The pump group performance number after pump group performance number and water pump quantity switching before being switched according to the water pump quantity, which is calculated, to be obtained
Obtain the second power offset value；
When second power offset value and default second value and power reference are inconsistent, then the current lift correspondence is adjusted
Acquiescence switching water-carrying capacity, until second power offset value is placed in default second error range.
10. control method according to claim 9, it is characterised in that the adjustment current lift is corresponding to give tacit consent to switching
The step of water-carrying capacity, includes：
When second power offset value is more than default second value and power reference, then heightens the corresponding acquiescence of current lift and cut
Water-carrying capacity is changed, until second power offset value is placed in default second error range；
When second power offset value is less than default second value and power reference, then turns down the corresponding acquiescence of current lift and cut
Water-carrying capacity is changed, until second power offset value is placed in default second error range.
11. control method according to claim 10, it is characterised in that the adjustment current lift is corresponding to give tacit consent to switching
The step of water-carrying capacity, further comprises：
The switching water-carrying capacity of the pump group is divided into multiple flow grades according to default multiple reference water flow values；
When second power offset value is more than default second value and power reference, then by the corresponding acquiescence of the current lift
Switching water-carrying capacity heightens one or more flow grades；
When second power offset value is less than default second value and power reference, then by the corresponding acquiescence of the current lift
Switching water-carrying capacity turns down one or more flow grades.
12. a kind of central air conditioning water system control device, it is characterised in that including detection components, processor, memory and deposit
The computer program on the memory is stored up, the detection components are connected to the processor, and the processor is performing institute
When stating computer program, specific perform claim requires the step in the control method any one of 1-11.
13. one kind can storage medium, it is characterised in that be stored with computer instruction on the readable storage medium storing program for executing, the instruction
The step in the control method described in any one of 1-11 is required for perform claim.
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| WO2019210807A1 (en) * | 2018-05-03 | 2019-11-07 | 广东美的暖通设备有限公司 | Method, device, and system for controlling cold-water main unit of central air conditioning system |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1629556A (en) * | 2003-12-19 | 2005-06-22 | 珠海福士得冷气工程有限公司 | Energy-saving central air conditioning system |
| JP2006177568A (en) * | 2004-12-21 | 2006-07-06 | Hitachi Ltd | Unit number control device of refrigerator and cool heat supply system |
| JP2009008356A (en) * | 2007-06-29 | 2009-01-15 | Yamatake Corp | System for controlling number of machines, and method of controlling number of machines |
| JP2013170753A (en) * | 2012-02-21 | 2013-09-02 | Hitachi High-Tech Control Systems Corp | Refrigerator system |
| CN103868190A (en) * | 2012-12-12 | 2014-06-18 | 同方泰德国际科技(北京)有限公司 | Energy-saving control method suitable for central air-conditioning cooling water system |
| CN203857618U (en) * | 2014-04-03 | 2014-10-01 | 浙江大冲能源科技有限公司 | Self-adaptive throttle control equipment for water cooling unit freezing pump of central air conditioner |
| CN104534617A (en) * | 2014-12-08 | 2015-04-22 | 北京华电方胜技术发展有限公司 | Cold source centralized digital control method based on energy consumption monitoring |
-
2017
- 2017-05-16 CN CN201710344414.XA patent/CN107202398B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1629556A (en) * | 2003-12-19 | 2005-06-22 | 珠海福士得冷气工程有限公司 | Energy-saving central air conditioning system |
| JP2006177568A (en) * | 2004-12-21 | 2006-07-06 | Hitachi Ltd | Unit number control device of refrigerator and cool heat supply system |
| JP2009008356A (en) * | 2007-06-29 | 2009-01-15 | Yamatake Corp | System for controlling number of machines, and method of controlling number of machines |
| JP2013170753A (en) * | 2012-02-21 | 2013-09-02 | Hitachi High-Tech Control Systems Corp | Refrigerator system |
| CN103868190A (en) * | 2012-12-12 | 2014-06-18 | 同方泰德国际科技(北京)有限公司 | Energy-saving control method suitable for central air-conditioning cooling water system |
| CN203857618U (en) * | 2014-04-03 | 2014-10-01 | 浙江大冲能源科技有限公司 | Self-adaptive throttle control equipment for water cooling unit freezing pump of central air conditioner |
| CN104534617A (en) * | 2014-12-08 | 2015-04-22 | 北京华电方胜技术发展有限公司 | Cold source centralized digital control method based on energy consumption monitoring |
Cited By (14)
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