CN110118509A - A kind of blower fan of cooling tower energy-saving control method and system - Google Patents
A kind of blower fan of cooling tower energy-saving control method and system Download PDFInfo
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- CN110118509A CN110118509A CN201910505371.8A CN201910505371A CN110118509A CN 110118509 A CN110118509 A CN 110118509A CN 201910505371 A CN201910505371 A CN 201910505371A CN 110118509 A CN110118509 A CN 110118509A
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- leaving water
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
- F28F27/003—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus specially adapted for cooling towers
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Abstract
The application discloses a kind of blower fan of cooling tower energy-saving control method and system, belongs to refrigeration technology field.This method is applied to cooling tower, and the cooling tower is provided with frequency conversion fan；The described method includes: obtaining the currently practical leaving water temperature of the cooling tower；Judge whether the relationship between the currently practical leaving water temperature and current setting leaving water temperature meets preset condition；When to be, the frequency conversion fan is controlled based on default leaving water temperature and runs the first preset duration, wherein the default leaving water temperature is less than the currently practical leaving water temperature；Obtain the practical leaving water temperature of the cooling tower in first preset duration；Target leaving water temperature is determined based on the practical leaving water temperature in first preset duration；The frequency conversion fan operation is controlled based on the target leaving water temperature.This method can monitor and adjust cooling tower leaving water temperature in real time using external parameter, reach energy saving while ideal refrigeration effect, improve the refrigeration effect of cold source control system.
Description
Technical field
The application belongs to refrigeration technology field, and in particular to a kind of blower fan of cooling tower energy-saving control method and system.
Background technique
In cold source control system, cooling tower as heat dissipation main running equipment, whether can efficiently, energy-saving run not only
It is related to the operational efficiency of itself, while also largely affects the refrigeration effect of cold source control system.In data
For the heart, cold source control system account for about the 4-6 of consumption of data center at.Wherein, every 1 DEG C of the decline of cooling tower leaving water temperature, cold
Energy saving 2%-5%, it can be seen that, the fluctuation of temperature is most important for the energy saving of entire cold source control system.
Existing cold source control system is grabbed for the setting value of cooling tower leaving water temperature, fully relies on operator rule of thumb
Setting, and there is very big uncertainty in operator, can not adjust in real time according to variable data (meteorology, load, device characteristics)
It is whole, it is too high or too low that water outlet temperature setting value is caused in this way.And if water outlet temperature setting value is too low (to be less than cooling tower herein
Value, namely the lower limit that can be exchanged heat lower than wet-bulb temperature are approached under under scene), since the too low cooling tower fan of setting value is bound to
Full range operation, even if fan full range is run, is still unable to reach setting value, to cause the energy due to meteorological condition
Waste；If setting value it is excessively high (greater than cooling tower in this scenario on approach value, namely can exchange heat higher than wet-bulb temperature
The upper limit), since setting value is excessively high, cause the running frequency of cooling tower fan too small, is unable to fully reduce using outdoor energy cold
But tower leaving water temperature, to reduce the utilization efficiency of cold source.
Summary of the invention
In consideration of it, the application's is designed to provide a kind of blower fan of cooling tower energy-saving control method and system, it is existing to improve
It is inaccurate (too high or too low) there is cooling tower water outlet temperature setting, and causes cold source utilization efficiency low or causes asking for energy waste
Topic.
Embodiments herein is achieved in that
In a first aspect, the embodiment of the present application provides a kind of blower fan of cooling tower energy-saving control method, it is applied to cooling tower, institute
It states cooling tower and is provided with frequency conversion fan；The described method includes: obtaining the currently practical leaving water temperature of the cooling tower；Described in judgement
Whether the relationship between currently practical leaving water temperature and current setting leaving water temperature meets preset condition；When to be, based on pre-
It sets out coolant-temperature gage and controls the first preset duration of the frequency conversion fan operation, wherein the default leaving water temperature is less than described current
Practical leaving water temperature；Obtain the practical leaving water temperature of the cooling tower in first preset duration；It is default based on described first
Practical leaving water temperature in duration determines target leaving water temperature；The frequency conversion fan fortune is controlled based on the target leaving water temperature
Row.
In the embodiment of the present application, when between the currently practical leaving water temperature for monitoring cooling tower and current setting leaving water temperature
Relationship when meeting preset condition, the first preset duration is run based on default leaving water temperature control frequency conversion fan, so that cooling tower
Fast-refrigerating, and the practical leaving water temperature of the cooling tower under this situation is obtained, and the practical leaving water temperature based on the cooling tower
It determines target leaving water temperature, avoids being arranged excessively high by target leaving water temperature and reducing refrigeration effect, or target is discharged
Temperature setting obtains too low and causes energy waste, allows to monitoring and adjust cooling tower in real time using external parameter go out water temperature
Degree, reaches energy saving while ideal refrigeration effect, improves the refrigeration effect of cold source control system.
Embodiment with reference to first aspect, under a kind of possible embodiment, the water outlet of the cooling tower is provided with temperature
Sensor is spent, obtains the currently practical leaving water temperature of the cooling tower, comprising: according to prefixed time interval, when second is default
The leaving water temperature of the temperature sensor monitoring is repeatedly obtained in long；The average value of multiple leaving water temperatures is obtained, it is described flat
Mean value is the currently practical leaving water temperature of the cooling tower.In the embodiment of the present application, by repeatedly obtaining according to prefixed time interval
The average value for the multiple leaving water temperatures that takes the leaving water temperature in a period of time, and will acquire as cooling tower it is currently practical go out
Coolant-temperature gage improves the accuracy and reliability of the currently practical leaving water temperature of cooling tower.
Embodiment with reference to first aspect obtains being averaged for multiple leaving water temperatures under a kind of possible embodiment
Value, comprising: reject the exceptional value in multiple leaving water temperatures；Multiple leaving water temperatures after obtaining excluding outlier it is flat
Mean value.In the embodiment of the present application, by removing the exceptional value in multiple leaving water temperatures, such as extreme value eliminates the influence of exceptional value,
It can be further ensured that the accuracy and reliability of result.
Embodiment with reference to first aspect, under a kind of possible embodiment, judge the currently practical leaving water temperature with
Whether the relationship between current setting leaving water temperature meets preset condition, comprising: judges the currently practical leaving water temperature and institute
Whether the absolute value for stating the difference of current setting leaving water temperature is greater than preset threshold, if more than preset threshold, then it is pre- to characterize satisfaction
If condition.In the embodiment of the present application, by the difference for judging the currently practical leaving water temperature and the current setting leaving water temperature
Whether the absolute value of value is greater than preset threshold to determine whether meeting preset condition, avoids the difference of the two excessive, and causes cold
The problem of source utilization efficiency is low or causes energy waste.
Embodiment with reference to first aspect, under a kind of possible embodiment, the water outlet of the cooling tower is provided with temperature
Sensor is spent, obtains the practical leaving water temperature of the cooling tower in first preset duration, comprising: according between preset time
Every repeatedly obtaining the leaving water temperature of temperature sensor monitoring in first preset duration；By described first it is default when
Practical leaving water temperature of the average value of the multiple leaving water temperatures got in length as the cooling tower.In the embodiment of the present application,
By according to prefixed time interval, the multiple leaving water temperature obtained in a period of time, and the multiple leaving water temperatures that will acquire
Practical leaving water temperature of the average value as cooling tower, improves the accuracy and reliability of the practical leaving water temperature of cooling tower.
Embodiment with reference to first aspect, under a kind of possible embodiment, based on the reality in first preset duration
Border leaving water temperature determines target leaving water temperature, comprising: by the practical leaving water temperature and predetermined deviation in first preset duration
For the value of multiplication as the target leaving water temperature, the predetermined deviation coefficient is greater than 1 less than 1.1.In the embodiment of the present application,
When determining target leaving water temperature, by the practical leaving water temperature and a predetermined deviation coefficient slightly larger than 1 in the first preset duration
The value of multiplication avoids influence of the temperature fluctuation to target leaving water temperature, further improves refrigeration as target leaving water temperature
Or energy saving effect.
Second aspect, the embodiment of the present application also provides a kind of blower fan of cooling tower energy-saving control systems, are applied to cooling tower,
The blower fan of cooling tower energy-saving control system includes fan controller and the frequency conversion fan that connect with the fan controller；
The fan controller, for obtaining the currently practical leaving water temperature of the cooling tower；The fan controller, is also used to
Judge whether the relationship between the currently practical leaving water temperature and current setting leaving water temperature meets preset condition；The blower
Control device is also used to when to be, is controlled the frequency conversion fan based on default leaving water temperature and is run the first preset duration,
In, the default leaving water temperature is less than the currently practical leaving water temperature；The fan controller is also used to obtain described
The practical leaving water temperature of the cooling tower in one preset duration；The fan controller is also used to default based on described first
Practical leaving water temperature in duration determines target leaving water temperature；The fan controller is also used to be discharged based on the target
Temperature controls the frequency conversion fan operation.
In conjunction with second aspect embodiment, under a kind of possible embodiment, the blower fan of cooling tower energy-saving control system
Further include the temperature sensor for being set to the water outlet of the cooling tower, the fan controller is used for: according to it is default when
Between be spaced, the leaving water temperature of temperature sensor monitoring is repeatedly obtained in the second preset duration；Obtain multiple water outlets
The average value of temperature, the average value are the currently practical leaving water temperature of the cooling tower.
In conjunction with second aspect embodiment, under a kind of possible embodiment, the fan controller is also used to: picking
Except the exceptional value in multiple leaving water temperatures；The average value of multiple leaving water temperatures after obtaining excluding outlier.
In conjunction with second aspect embodiment, under a kind of possible embodiment, the fan controller is also used to: sentencing
Whether the absolute value of difference of the currently practical leaving water temperature and the current setting leaving water temperature of breaking is greater than preset threshold, if
Greater than preset threshold, then characterization meets preset condition.
In conjunction with second aspect embodiment, under a kind of possible embodiment, the water outlet of the cooling tower is provided with temperature
Sensor is spent, the fan controller is also used to: according to prefixed time interval, repeatedly being obtained in first preset duration
Take the leaving water temperature of the temperature sensor monitoring；The average value of multiple leaving water temperatures in first preset duration is obtained,
The average value of multiple leaving water temperatures in first preset duration is the practical leaving water temperature.
In conjunction with second aspect embodiment, under a kind of possible embodiment, the fan controller is also used to: will
The value of practical leaving water temperature and predetermined deviation multiplication in first preset duration is as the target leaving water temperature, institute
Predetermined deviation coefficient is stated greater than 1 less than 1.1.
Other feature and advantage of the application will be illustrated in subsequent specification, also, partly be become from specification
It is clear that being understood and implementing the embodiment of the present application.The purpose of the application and other advantages can be by written
Specifically noted structure is achieved and obtained in specification and attached drawing.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the application
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.By the way that shown in attached drawing, above and other purpose, the feature and advantage of the application will be more clear.In whole
Identical appended drawing reference indicates identical part in attached drawing.Attached drawing, emphasis deliberately are not drawn by actual size equal proportion scaling
It is that the purport of the application is shown.
Fig. 1 shows a kind of flow diagram of blower fan of cooling tower energy-saving control method provided by the embodiments of the present application；
Fig. 2 shows the variation schematic diagrames of cooling tower leaving water temperature in a scenario provided by the embodiments of the present application；
Fig. 3 shows the variation schematic diagram of the cooling tower leaving water temperature under another scene provided by the embodiments of the present application；
Fig. 4 shows a kind of structural schematic diagram of blower fan of cooling tower energy-saving control system provided by the embodiments of the present application.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application is described.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.Meanwhile the application's
The relational terms of such as " first ", " second " or the like are used merely to an entity or operation and another entity in description
Or operation distinguishes, without necessarily requiring or implying between these entities or operation there are any this actual relationship or
Person's sequence.Moreover, the terms "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion, to make
Obtaining the process, method, article or equipment including a series of elements not only includes those elements, but also including not arranging clearly
Other element out, or further include for elements inherent to such a process, method, article, or device.Not more
In the case where limitation, the element that is limited by sentence "including a ...", it is not excluded that including process, the side of the element
There is also other identical elements in method, article or equipment.
Furthermore term "and/or" in the application, only a kind of incidence relation for describing affiliated partner, expression can deposit
In three kinds of relationships, for example, A and/or B, can indicate: individualism A exists simultaneously A and B, these three situations of individualism B.
First embodiment
Referring to Fig. 1, being a kind of blower fan of cooling tower Energy Saving Control side applied to cooling tower provided by the embodiments of the present application
Method, the step of including to it below in conjunction with Fig. 1, are illustrated.Wherein, cooling tower is provided with frequency conversion fan.
Step S101: the currently practical leaving water temperature of the cooling tower is obtained.
When needing to carry out radiating control to cooling tower, the currently practical leaving water temperature of the cooling tower is obtained.By at this
Temperature sensor is arranged in the water outlet of cooling tower, carrys out the practical leaving water temperature of real-time monitoring cooling tower, as a kind of embodiment party
Formula can be using the temperature of the temperature sensor currently got acquisition as the currently practical leaving water temperature of cooling tower.As
Another embodiment, can be using the temperature sensor repeatedly got in a period of time acquisition temperature average value as
The currently practical leaving water temperature of cooling tower.For example, repeatedly obtaining temperature biography in the second preset duration according to prefixed time interval
The leaving water temperature of sensor monitoring；The average value of multiple leaving water temperatures in the second preset duration is obtained, the average value is institute
State the currently practical leaving water temperature of cooling tower.In order to make it easy to understand, the second preset duration is 6 with prefixed time interval for 10 seconds
Minute for, that is to say, that in 6 minutes time, every 10 seconds obtain a temperature sensor monitoring leaving water temperature, one
Available 36 leaving water temperatures altogether, calculate the average value of this 36 leaving water temperatures, which is the current reality of cooling tower
Border leaving water temperature.
Certainly when obtaining the average value of multiple leaving water temperatures, it is also possible to first reject different in multiple leaving water temperatures
Constant value；Then the average value of multiple leaving water temperatures after excluding outlier is obtained, to reduce influence of the extreme value to end value,
For example, therefrom rejecting maximum value and minimum value after obtaining 36 leaving water temperatures, then calculating remaining 34 leaving water temperatures
Average value.
Certainly as another embodiment, it is also possible to that multiple temperature sensors are arranged in the water outlet of cooling tower,
Then the average value of the leaving water temperature of each temperature sensor acquisition will be calculated.I.e. when calculating average value, calculating one can be
The average value of the leaving water temperature of a temperature sensor multi collect, is also possible to calculate multiple temperature sensors and respectively at least acquires
The average value of primary leaving water temperature.
Step S102: judge whether the relationship between the currently practical leaving water temperature and current setting leaving water temperature meets
Preset condition.
After the currently practical leaving water temperature for obtaining cooling tower, judges the currently practical leaving water temperature and currently set out
Whether the relationship between coolant-temperature gage meets preset condition, when to be, thens follow the steps S103, otherwise continues to execute step S101
And S102.
As an implementation, judging the pass between the currently practical leaving water temperature and current setting leaving water temperature
When whether system meets preset condition, the difference for judging the currently practical leaving water temperature and the current setting leaving water temperature can be
Whether the absolute value of value is greater than preset threshold, and if more than preset threshold, then characterization meets preset condition.In order to facilitate understanding below
Citing is illustrated, it is assumed that currently practical leaving water temperature is indicated with Wtime, indicates to set out water temperature currently with Wavgnote
Degree, then the above process is to judge | Wtime-Wavgnote | > 1? if the absolute value that Wtime subtracts Wavgnote difference is greater than pre-
If threshold value (for example, 1), then characterization meets preset condition, executes step S103, otherwise continues step S101 and S102.Certainly
It is understood that above-mentioned preset threshold is not limited to 1, it is also possible to other numerical value relatively, such as 1.5,2 these numbers
Value.
Certainly, as another embodiment, judge the currently practical leaving water temperature and current setting leaving water temperature it
Between relationship whether meet preset condition, be also possible to judgeorIf Wtime with
Relationship between Wavgnote meetsOr meetThen characterization meets preset condition, holds
Otherwise row step S103 continues step S101 and S102.
Step S103: the frequency conversion fan is controlled based on default leaving water temperature and runs the first preset duration.
Whether the relationship between the currently practical leaving water temperature and current setting leaving water temperature meets preset condition,
That is when the absolute value that Wtime subtracts Wavgnote difference is greater than preset threshold (such as 1), the change is controlled based on default leaving water temperature
The first preset duration of frequency fan operation, so that cooling tower fast-refrigerating, and subsequent operation is executed with this condition, it avoids initially setting
Fixed leaving water temperature is because being arranged to obtain excessively high adverse effect, so that the value of the target leaving water temperature finally determined is more
Adduction is physical and chemical.Wherein, the default leaving water temperature is less than the currently practical leaving water temperature.For example, it is described it is currently practical go out
When whether the relationship between coolant-temperature gage and current setting leaving water temperature meets preset condition, based on 16 degrees Celsius of default water temperature out
Degree controls the frequency conversion fan and runs the first preset duration, such as 5 minutes.As an implementation, which can
Think the accessible minimum temperature of cooling tower, for example, 16 degrees Celsius, it is of course possible to which understanding, this presets leaving water temperature also simultaneously
It is not necessarily the accessible minimum temperature of cooling tower, is also possible to the lower temperature that compares, such as 16.5 degrees Celsius etc..
It is understood that first preset duration is not limited to above-mentioned 5 minutes, for example, it may be the number such as 4 minutes or 6 minutes
Value.
Step S104: the practical leaving water temperature of the cooling tower in first preset duration is obtained.
When frequency conversion fan is based on default the first preset duration of leaving water temperature operation, the cooling tower in this period of time is obtained
Practical leaving water temperature.Optionally, the process is similar with the above-mentioned process of step S101, for example, it may be according to it is default when
Between be spaced, the leaving water temperature of temperature sensor monitoring is repeatedly obtained in first preset duration；It is pre- by described first
If practical leaving water temperature of the average value of the multiple leaving water temperatures got in duration as the cooling tower.For example, with 10 seconds
For interval, the leaving water temperature of the temperature sensor monitoring is repeatedly obtained in 5 minutes, available 30 leaving water temperatures will
Practical leaving water temperature of the average value of this 30 leaving water temperatures as the cooling tower.
Certainly, when obtaining the average value of multiple leaving water temperatures, it is also possible to first reject in multiple leaving water temperatures
Exceptional value；Then the average value of multiple leaving water temperatures after excluding outlier is obtained, to reduce extreme value to the shadow of end value
It rings, for example, therefrom rejecting maximum value and minimum value after obtaining 30 leaving water temperatures, then calculates remaining 28 and go out water temperature
The average value of degree.
Step S105: target leaving water temperature is determined based on the practical leaving water temperature in first preset duration.
It is getting in first preset duration after the practical leaving water temperature of the cooling tower, it is default based on described first
Practical leaving water temperature in duration determines target leaving water temperature.As an implementation, which may is that described first
The value of practical leaving water temperature and predetermined deviation multiplication in preset duration is described default inclined as the target leaving water temperature
Poor coefficient is greater than 1 less than 1.1.Namely the product of the practical leaving water temperature and predetermined deviation coefficient in the first preset duration is obtained,
The value of the product is made to be the target leaving water temperature.For example, it is assumed that in the first preset duration the cooling tower practical water outlet
Temperature is 18 degrees Celsius, and predetermined deviation coefficient is 1.02, then target leaving water temperature is 18*1.02=18.36.It is understood that
It is that above-mentioned predetermined deviation coefficient is not limited to above-mentioned 1.02, it is any within the scope of this less than 1.1 may be greater than 1
Numerical value.
As another embodiment, target leaving water temperature can also be the reality of the cooling tower in the first preset duration
Border leaving water temperature.
Step S106: the frequency conversion fan operation is controlled based on the target leaving water temperature.
After determining the target leaving water temperature of cooling tower, the frequency conversion fan fortune is controlled based on the target leaving water temperature
Row.
It should be noted that can be iteratively repeated above-mentioned during the entire process of the leaving water temperature to cooling tower controls
Step S101- step S105, allow in real time adjust cooling tower leaving water temperature, while reaching ideal refrigeration effect
It is energy saving.
Citing, is illustrated by above-mentioned control process in order to facilitate understanding below, it is assumed that cooling tower is currently set out
Coolant-temperature gage is 22 DEG C, and since meteorological temperature declines, the leaving water temperature of cooling tower is averaged real value (namely cooling tower in 6 minutes
Currently practical leaving water temperature) it is 19 DEG C, at this time due to currently practical leaving water temperature (19 DEG C) and current setting leaving water temperature (22
DEG C) between relationship meet preset condition (absolute value of difference both i.e. is greater than 1), resetting condition activation, at this point, with 16 DEG C
(the default leaving water temperature of cooling tower) controls the frequency conversion fan and runs 5 minutes (the first preset duration), if the cooling in 5 minutes
The practical leaving water temperature of tower be 18 DEG C (namely the leaving water temperature of the cooling tower real value that is averaged is 18 DEG C in 5 minutes), at this point, target
Leaving water temperature is the product of practical leaving water temperature and predetermined deviation coefficient, namely is equal to 18*1.02=18.36, then with the mesh
Mark (18.36 DEG C) of coolant-temperature gage controls frequency conversion fan operation.
Above-mentioned 18.36 DEG C of target leaving water temperature are the current setting leaving water temperature of second leg, namely at next time
When conjunction, currently leaving water temperature is set as 18.36 DEG C, since the leaving water temperature that meteorological temperature rises cooling tower in 6 minutes is average real
Duration (namely the currently practical leaving water temperature of cooling tower) is 21 DEG C, at this time due to currently practical leaving water temperature (18.36 DEG C) with
Relationship between current setting leaving water temperature (21 DEG C) meets preset condition (i.e. the absolute value of the difference of the two is greater than 1), resetting
Condition activation, at this point, running 5 minutes with 16 DEG C (the default leaving water temperature of cooling tower) the control frequency conversion fans, (first is default
Duration), if the practical leaving water temperature of the cooling tower in 5 minutes be 20 DEG C (namely in 5 minutes cooling tower leaving water temperature it is average real
Duration is 20 DEG C), at this point, target leaving water temperature is the product of practical leaving water temperature and predetermined deviation coefficient, namely it is equal to 20*
1.02=20.4, then with (20.4 DEG C) of the target leaving water temperature controls frequency conversion fan operation.Wherein, which goes out water temperature
Degree (20.4 DEG C) is the current setting leaving water temperature of second leg.
The effect of blower fan of cooling tower energy-saving control method provided by the embodiments of the present application, Ke Yican are applied in order to facilitate understanding
Read the variation schematic diagram of the cooling tower leaving water temperature under the different scenes shown in Fig. 2 and Fig. 3.It can be with from Fig. 2 and Fig. 3
It is clearly seen that using blower fan of cooling tower energy-saving control method provided by the embodiments of the present application and sets the water temperature out of cooling tower
The variation of degree and the existing artificial leaving water temperature that cooling tower is set by experience.It can be seen that from figure (Fig. 2 and Fig. 3)
It is able to achieve automation control using blower fan of cooling tower energy-saving control method provided by the embodiments of the present application, to replace manual operation,
Environment temperature can be made full use of to carry out regulation to reach energy-saving effect, due to natural in true environment to cooling tower leaving water temperature
Temperature be it is changing, different regions amplitude of variation and frequency be not also identical.And traditional manual operation is it is possible that nothing
Method adjusts cooling tower leaving water temperature according to external parameter (environment temperature) and inner parameter (load) in real time.If cooling tower is discharged
Desired temperature it is excessively high (greater than cooling tower in this scenario on approach value, namely can exchange heat higher than wet-bulb temperature upper
Limit), it will cause underusing for cold source；, whereas if cooling tower water outlet temperature setting value is too low (to be less than cooling tower at this
Value, namely the lower limit that can be exchanged heat lower than wet-bulb temperature are approached under under scape), it will lead to the operation of cooling tower full range and be but unable to reach
The leaving water temperature of setting, causes energy waste.And apply blower fan of cooling tower energy-saving control method provided by the embodiments of the present application can
To monitor and adjust cooling tower leaving water temperature in real time using external parameter, reach energy saving while ideal refrigeration effect.
Wherein, Fig. 2 shows be that cooling tower leaving water temperature is average real-time in the excessively high situation of cooling tower water outlet temperature setting value
Value, the setting value under existing way and the setting under application blower fan of cooling tower energy-saving control method provided by the embodiments of the present application
The comparison diagram of value.Wherein, Fig. 3 is shown in the too low situation of cooling tower water outlet temperature setting value, and cooling tower leaving water temperature is average
Under setting value and application blower fan of cooling tower energy-saving control method provided by the embodiments of the present application under real value, existing way
The comparison diagram of setting value.
Wherein, the A in Fig. 2 and Fig. 3 indicates the water outlet temperature setting value of the cooling tower under manual operation, and B indicates cooling
The leaving water temperature of tower is averaged real value, and C is indicated under application blower fan of cooling tower energy-saving control method provided by the embodiments of the present application
The water outlet temperature setting value of cooling tower.
Second embodiment
The embodiment of the present application also provides a kind of blower fan of cooling tower energy-saving control systems 100 applied in cooling tower, such as
Shown in Fig. 4.The blower fan of cooling tower energy-saving control system 100 includes: memory 120, fan controller 130, temperature sensor
110 and frequency conversion fan 140.
The fan controller 130 and the memory 120, the temperature sensor 110 and the frequency conversion fan 140
In each element be directly or indirectly electrically connected between each other, to realize the transmission or interaction of data.For example, these element phases
It can be realized and be electrically connected by one or more communication bus or signal wire between mutually.Temperature sensor 110 is for acquiring cooling
The leaving water temperature of the water outlet of tower, and it is transmitted to fan controller 130.Memory 120 can be high speed and deposit at random
Access to memory 120 (Random Access Memory, RAM), is also possible to non-labile 120 (non-of memory
Volatile memory), a for example, at least magnetic disk storage 120.Wherein, it is stored in memory 120 computer-readable
It instructs (computer program), which includes that at least one can be in the form of software or firmware (firmware)
The software function module being stored in the memory 120.The fan controller 130, is deposited for executing in memory 120
The computer-readable instruction fetch of storage, to execute the step that blower fan of cooling tower energy-saving control method provided by the embodiments of the present application is included
Suddenly.Such as the fan controller 130, for obtaining the currently practical leaving water temperature of the cooling tower；The air-blower control
It is pre- to be also used to judge whether the relationship between the currently practical leaving water temperature and current setting leaving water temperature meets for device 130
If condition；The fan controller 130, is also used to when to be, controls the frequency conversion fan 140 based on default leaving water temperature
Run the first preset duration, wherein the default leaving water temperature is less than the currently practical leaving water temperature；The air-blower control dress
130 are set, is also used to obtain the practical leaving water temperature of the cooling tower in first preset duration；The fan controller
130, it is also used to determine target leaving water temperature based on the practical leaving water temperature in first preset duration；The air-blower control dress
130 are set, is also used to control the operation of frequency conversion fan 140 based on the target leaving water temperature.
Wherein, above-mentioned fan controller 130 may be a kind of IC chip, the processing capacity with signal.It should
Fan controller 130 can be general processor, including central processing unit (Central Processing Unit, CPU),
Network processing unit (Network Processor, NP) etc.；It can also be digital signal processor (Digital Signal
Processor, DSP), it is specific integrated circuit (Application Specific Integrated Circuit, ASIC), existing
It is field programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic device, discrete
Door or transistor logic, discrete hardware components.It may be implemented or execute the disclosed each side in the embodiment of the present invention
Method, step and logic diagram.General processor can be microprocessor or the fan controller 130 be also possible to it is any often
The processor etc. of rule.
Wherein, the component of blower fan of cooling tower energy-saving control system 100 shown in Fig. 4 and structure are only exemplary, rather than
Restrictive, as needed, blower fan of cooling tower energy-saving control system 100 also can have other assemblies and structure.
It should be noted that all the embodiments in this specification are described in a progressive manner, each embodiment weight
Point explanation is the difference from other embodiments, and the same or similar parts between the embodiments can be referred to each other.
The technology of the function of fan controller 130 provided by the embodiment of the present application, realization principle and generation
Effect is identical with preceding method embodiment, and to briefly describe, Installation practice part does not refer to place, can refer to preceding method reality
Apply corresponding contents in example.
3rd embodiment
The embodiment of the present application also provides a kind of non-volatile computer readable storage medium storing program for executing (hereinafter referred to as storage medium),
It is stored thereon with computer program, the computer program executes above-mentioned when being run by processor (such as fan controller 130)
The step of blower fan of cooling tower energy-saving control method as described in Figure 1.Specific implementation can be found in embodiment of the method, no longer superfluous herein
It states.
Specifically, which can be general storage medium, such as mobile disk, hard disk, on the storage medium
Program code when being run, be able to carry out the blower fan of cooling tower energy-saving control method shown in above-described embodiment.
In several embodiments provided herein, it should be understood that disclosed device and method can also pass through
Other modes are realized.The apparatus embodiments described above are merely exemplary, for example, flow chart and block diagram in attached drawing
Show the device of multiple embodiments according to the application, the architectural framework in the cards of method and computer program product,
Function and operation.In this regard, each box in flowchart or block diagram can represent the one of a module, section or code
Part, a part of the module, section or code, which includes that one or more is for implementing the specified logical function, to be held
Row instruction.It should also be noted that function marked in the box can also be to be different from some implementations as replacement
The sequence marked in attached drawing occurs.For example, two continuous boxes can actually be basically executed in parallel, they are sometimes
It can execute in the opposite order, this depends on the function involved.It is also noted that every in block diagram and or flow chart
The combination of box in a box and block diagram and or flow chart can use the dedicated base for executing defined function or movement
It realizes, or can realize using a combination of dedicated hardware and computer instructions in the system of hardware.
In addition, each functional module in each embodiment of the application can integrate one independent portion of formation together
Point, it is also possible to modules individualism, an independent part can also be integrated to form with two or more modules.
It, can be with if the function is realized and when sold or used as an independent product in the form of software function module
It is stored in a computer readable storage medium.Based on this understanding, the technical solution of the application is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, laptop, server or network equipment etc.) execute each embodiment the method for the application whole
Or part steps.And storage medium above-mentioned include: USB flash disk, mobile hard disk, read-only memory (Read-Only Memory,
ROM), random access memory (Random Access Memory, RAM), magnetic or disk etc. are various can store program
The medium of code.
The above, the only specific embodiment of the application, but the protection scope of the application is not limited thereto, it is any
Those familiar with the art within the technical scope of the present application, can easily think of the change or the replacement, and should all contain
Lid is within the scope of protection of this application.Therefore, the protection scope of the application shall be subject to the protection scope of the claim.
Claims (10)
1. a kind of blower fan of cooling tower energy-saving control method, which is characterized in that be applied to cooling tower, the cooling tower is provided with frequency conversion
Blower；The described method includes:
Obtain the currently practical leaving water temperature of the cooling tower；
Judge whether the relationship between the currently practical leaving water temperature and current setting leaving water temperature meets preset condition；
When to be, the frequency conversion fan is controlled based on default leaving water temperature and runs the first preset duration, wherein is described pre- to set out
Coolant-temperature gage is less than the currently practical leaving water temperature；
Obtain the practical leaving water temperature of the cooling tower in first preset duration；
Target leaving water temperature is determined based on the practical leaving water temperature in first preset duration；
The frequency conversion fan operation is controlled based on the target leaving water temperature.
2. the method according to claim 1, wherein the water outlet of the cooling tower is provided with temperature sensor,
Obtain the currently practical leaving water temperature of the cooling tower, comprising:
According to prefixed time interval, the leaving water temperature of the temperature sensor monitoring is repeatedly obtained in the second preset duration；
The average value of multiple leaving water temperatures is obtained, the average value is the currently practical leaving water temperature of the cooling tower.
3. according to the method described in claim 2, it is characterized in that, obtaining the average value of multiple leaving water temperatures, comprising:
Reject the exceptional value in multiple leaving water temperatures；
The average value of multiple leaving water temperatures after obtaining excluding outlier.
4. the method according to claim 1, wherein judging the currently practical leaving water temperature and currently setting out
Whether the relationship between coolant-temperature gage meets preset condition, comprising:
Judge the currently practical leaving water temperature and it is described it is current setting leaving water temperature difference absolute value whether be greater than it is default
Threshold value, if more than preset threshold, then characterization meets preset condition.
5. method according to any of claims 1-4, which is characterized in that the water outlet of the cooling tower is provided with
Temperature sensor obtains the practical leaving water temperature of the cooling tower in first preset duration, comprising:
According to prefixed time interval, the temperature sensor monitoring is repeatedly obtained in first preset duration goes out water temperature
Degree；
Obtain the average value of multiple leaving water temperatures in first preset duration, multiple water outlets in first preset duration
The average value of temperature is the practical leaving water temperature.
6. according to the method described in claim 5, it is characterized in that, based on the practical leaving water temperature in first preset duration
Determine target leaving water temperature, comprising:
The value of practical leaving water temperature and predetermined deviation multiplication in first preset duration is discharged as the target
Temperature, the predetermined deviation coefficient are greater than 1 less than 1.1.
7. a kind of blower fan of cooling tower energy-saving control system, which is characterized in that be applied to cooling tower, the blower fan of cooling tower energy conservation control
System processed includes fan controller and the frequency conversion fan that connect with the fan controller；
The fan controller, for obtaining the currently practical leaving water temperature of the cooling tower；
The fan controller is also used to judge the pass between the currently practical leaving water temperature and current setting leaving water temperature
Whether system meets preset condition；
The fan controller is also used to when to be, controls the frequency conversion fan operation first based on default leaving water temperature
Preset duration, wherein the default leaving water temperature is less than the currently practical leaving water temperature；
The fan controller is also used to obtain the practical leaving water temperature of the cooling tower in first preset duration；
The fan controller is also used to determine that target goes out water temperature based on the practical leaving water temperature in first preset duration
Degree；
The fan controller is also used to control the frequency conversion fan operation based on the target leaving water temperature.
8. blower fan of cooling tower energy-saving control system according to claim 7, which is characterized in that the blower fan of cooling tower energy conservation
Control system further includes the temperature sensor for being set to the water outlet of the cooling tower, and the fan controller is used for: pressing
According to prefixed time interval, the leaving water temperature of the temperature sensor monitoring is repeatedly obtained in the second preset duration；
The average value of multiple leaving water temperatures is obtained, the average value is the currently practical leaving water temperature of the cooling tower.
9. blower fan of cooling tower energy-saving control system according to claim 8, which is characterized in that the fan controller,
It is also used to: rejecting the exceptional value in multiple leaving water temperatures；
The average value of multiple leaving water temperatures after obtaining excluding outlier.
10. blower fan of cooling tower energy-saving control system according to claim 7, which is characterized in that the fan controller,
Be also used to: judge the currently practical leaving water temperature and it is described it is current setting leaving water temperature difference absolute value whether be greater than it is pre-
If threshold value, if more than preset threshold, then characterization meets preset condition.
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| CN201910505371.8A CN110118509B (en) | 2019-06-11 | 2019-06-11 | Energy-saving control method and system for cooling tower fan |
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| CN201910505371.8A CN110118509B (en) | 2019-06-11 | 2019-06-11 | Energy-saving control method and system for cooling tower fan |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110514026A (en) * | 2019-07-23 | 2019-11-29 | 江苏天晟节能科技有限公司 | Modularization industrial cooling tower control system and its working method |
| CN112857132A (en) * | 2021-01-07 | 2021-05-28 | 丁一 | Cooling tower, cooling tower detection control method, device, equipment and storage medium |
| CN113465441A (en) * | 2021-06-29 | 2021-10-01 | 青岛海尔空调电子有限公司 | Control method of cooling tower and storage medium |
| CN114877582A (en) * | 2022-05-26 | 2022-08-09 | 杰瑞石油天然气工程有限公司 | Temperature control method, device and system based on air cooling |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010060166A (en) * | 2008-09-01 | 2010-03-18 | Yazaki Corp | Cooling tower and heat source machine system |
| JP2014087728A (en) * | 2012-10-29 | 2014-05-15 | Miura Co Ltd | Water treatment adjusting system |
| CN105953602A (en) * | 2016-04-25 | 2016-09-21 | 珠海格力电器股份有限公司 | Energy-saving control method and device for cooling tower and air conditioning system |
| CN105987617A (en) * | 2015-02-05 | 2016-10-05 | 东元电机股份有限公司 | Energy-saving frequency converting control system of cooling tower |
| CN106482573A (en) * | 2016-12-05 | 2017-03-08 | 上海大众祥源动力供应有限公司 | A kind of blower fan of cooling tower Optimal Control System and method |
| CN106979717A (en) * | 2016-11-04 | 2017-07-25 | 深圳达实智能股份有限公司 | The control method and device of cooling tower supply water temperature setting value |
-
2019
- 2019-06-11 CN CN201910505371.8A patent/CN110118509B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010060166A (en) * | 2008-09-01 | 2010-03-18 | Yazaki Corp | Cooling tower and heat source machine system |
| JP2014087728A (en) * | 2012-10-29 | 2014-05-15 | Miura Co Ltd | Water treatment adjusting system |
| CN105987617A (en) * | 2015-02-05 | 2016-10-05 | 东元电机股份有限公司 | Energy-saving frequency converting control system of cooling tower |
| CN105953602A (en) * | 2016-04-25 | 2016-09-21 | 珠海格力电器股份有限公司 | Energy-saving control method and device for cooling tower and air conditioning system |
| CN106979717A (en) * | 2016-11-04 | 2017-07-25 | 深圳达实智能股份有限公司 | The control method and device of cooling tower supply water temperature setting value |
| CN106482573A (en) * | 2016-12-05 | 2017-03-08 | 上海大众祥源动力供应有限公司 | A kind of blower fan of cooling tower Optimal Control System and method |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110514026A (en) * | 2019-07-23 | 2019-11-29 | 江苏天晟节能科技有限公司 | Modularization industrial cooling tower control system and its working method |
| CN112857132A (en) * | 2021-01-07 | 2021-05-28 | 丁一 | Cooling tower, cooling tower detection control method, device, equipment and storage medium |
| CN113465441A (en) * | 2021-06-29 | 2021-10-01 | 青岛海尔空调电子有限公司 | Control method of cooling tower and storage medium |
| CN113465441B (en) * | 2021-06-29 | 2022-10-28 | 青岛海尔空调电子有限公司 | Control method of cooling tower and storage medium |
| WO2023273827A1 (en) * | 2021-06-29 | 2023-01-05 | 青岛海尔空调电子有限公司 | Cooling tower control method and storage medium |
| CN114877582A (en) * | 2022-05-26 | 2022-08-09 | 杰瑞石油天然气工程有限公司 | Temperature control method, device and system based on air cooling |
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|---|---|
| CN110118509B (en) | 2020-07-07 |
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