CN106500277A - A kind of cooling tower intelligent control method and system - Google Patents
A kind of cooling tower intelligent control method and system Download PDFInfo
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- CN106500277A CN106500277A CN201611193202.8A CN201611193202A CN106500277A CN 106500277 A CN106500277 A CN 106500277A CN 201611193202 A CN201611193202 A CN 201611193202A CN 106500277 A CN106500277 A CN 106500277A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a kind of cooling tower intelligent control method, including：The Inlet and outlet water temperature value of detection cooling tower；Detect the air enthalpy of cooling tower place environment；Based on the Inlet and outlet water temperature value and air enthalpy control blower fan of cooling tower unit.The present invention can realize the flexible to cooling tower temperature, improve reliability and energy-saving effect.The invention also discloses a kind of cooling tower intelligence control system.
Description
Technical field
The present invention relates to smart machine field, more particularly, it relates to a kind of cooling tower intelligent control method and system.
Background technology
At present, the return water temperature of supply mains is typically all cooled down to the control of central Cooling Tower for Air conditioning System by detection,
The blower fan that setting value time control cooling tower is reached at or above in return water temperature starts, and freezes less than setting value time control in return water temperature
But the fan parking of tower.In prior art, the change of outdoor working condition is not accounted for the control of cooling tower, therefore there is temperature
The problems such as degree adjusts low dumb, reliability and poor energy-saving effect.
Content of the invention
In view of this, it is an object of the invention to provide a kind of cooling tower intelligent control method, can realize to cooling tower
The flexible of temperature, improves reliability and energy-saving effect.
For achieving the above object, the invention provides a kind of cooling tower intelligent control method, including：
The Inlet and outlet water temperature value of detection cooling tower；
Detect the air enthalpy of cooling tower place environment；
Based on the Inlet and outlet water temperature value and air enthalpy control blower fan of cooling tower unit.
Preferably, methods described also includes：
Add up the run time order of each blower fan in the blower fan unit；
Accordingly, it is specially based on the Inlet and outlet water temperature value and air enthalpy control blower fan of cooling tower unit：
Run time based on each blower fan in the Inlet and outlet water temperature value and the air enthalpy and the blower fan unit
The operation quantity of sequential control blower fan of cooling tower unit and operation power.
Preferably, the air enthalpy of the detection cooling tower place environment includes：
Detect the air temperature value of cooling tower place environment；
Detect the environmental wet angle value of cooling tower place environment；
Detect the wind speed of cooling tower place environment；
Detect the atmospheric pressure value of cooling tower place environment.
Preferably, described based on each blower fan in the Inlet and outlet water temperature value and the air enthalpy and the blower fan unit
Run time sequential control blower fan of cooling tower unit operation quantity and operation power include：
Judge the Inlet and outlet water temperature value of the cooling tower whether more than the first preset temperature value；
When the Inlet and outlet water temperature value of the cooling tower is more than the first preset temperature value, control increases the operation platform of blower fan
Number, according to Cumulative Elapsed Time, short blower fan of first startup optimization time, the blower fan of rear startup optimization time length, while improve institute
State the operation power of blower fan of cooling tower unit；
When the Inlet and outlet water temperature value of the cooling tower is less than or equal to the first preset temperature value, control reduces the operation of blower fan
Number of units, according to Cumulative Elapsed Time, short blower fan of first startup optimization time, the blower fan of rear startup optimization time length, while reduce
The operation power of the blower fan of cooling tower unit.
Preferably, described based on each blower fan in the Inlet and outlet water temperature value and the air enthalpy and the blower fan unit
Run time sequential control blower fan of cooling tower unit operation quantity and operation power include：
Judge the air enthalpy whether more than the second preset value；
When the air enthalpy is more than the second preset value, control increases the operation number of units of blower fan, according to during accumulation operation
Between, short blower fan of first startup optimization time, the blower fan of rear startup optimization time length, while improve the blower fan of cooling tower unit
Operation power；
When the air enthalpy is less than or equal to the second preset value, control reduces the operation number of units of blower fan, according to accumulation fortune
Row time, short blower fan of first startup optimization time, the blower fan of rear startup optimization time length control to reduce the blower fan of cooling tower
The operation power of unit；
When the air enthalpy is more than maximum preset value, all blower fans that control is closed in blower fan unit.
A kind of cooling tower intelligence control system, including：First detection means, second detection device and controller；Wherein：
First detection means of the Inlet and outlet water temperature value of the detection cooling tower is connected with the controller, by the cooling
The Inlet and outlet water temperature value of tower is sent to the controller；
The second detection device of the air enthalpy of the detection cooling tower place environment is connected with the controller, will
The air enthalpy of cooling tower place environment is sent to the controller；
The controller is based on the Inlet and outlet water temperature value and the air enthalpy control blower fan of cooling tower machine for receiving
Group.
Preferably, the system also includes：
Add up the timer of the run time order of each blower fan in the blower fan unit；
Accordingly, the controller is based in the Inlet and outlet water temperature value and the air enthalpy and the blower fan unit
The operation quantity of the run time sequential control blower fan of cooling tower unit of each blower fan and operation power.
Preferably, the second detection device includes：
Detect the temperature sensor of the air temperature value of cooling tower place environment；
Detect the humidity sensor of the environmental wet angle value of cooling tower place environment；
Detect the air velocity transducer of the wind speed of cooling tower place environment；
Detect the barometer of the atmospheric pressure value of cooling tower place environment.
Preferably, the controller includes：
Judge whether the Inlet and outlet water temperature value of the cooling tower is more than the first comparator of the first preset temperature value；
When the Inlet and outlet water temperature value of the cooling tower is more than the first preset temperature value, control increases the operation platform of blower fan
Number, according to Cumulative Elapsed Time, short blower fan of first startup optimization time, the blower fan of rear startup optimization time length, while improve institute
State the first processor of the operation power of blower fan of cooling tower unit；
The first processor, is additionally operable to be less than or equal to the first preset temperature value when the Inlet and outlet water temperature value of the cooling tower
When, control reduces the operation number of units of blower fan, according to Cumulative Elapsed Time, short blower fan of first startup optimization time, and rear startup optimization
The blower fan of time length, while reduce the operation power of the blower fan of cooling tower unit.
Preferably, the controller also includes：
Judge whether the air enthalpy is more than the second comparator of the second preset value；
When the air enthalpy is more than the second preset value, control increases the operation number of units of blower fan, according to during accumulation operation
Between, short blower fan of first startup optimization time, the blower fan of rear startup optimization time length, while increase the blower fan of cooling tower unit
The second processing device of operation power；
The second processing device, is additionally operable to, when the air enthalpy is less than or equal to the second preset value, control less blower fan
Operation number of units, according to Cumulative Elapsed Time, short blower fan of first startup optimization time, the blower fan of rear startup optimization time length, with
When reduce the operation power of the blower fan of cooling tower unit；
Second comparator, is additionally operable to judge that the air enthalpy is more than maximum preset value；
The processor, is additionally operable to when the air enthalpy is more than maximum preset value, and control is closed in blower fan unit
All blower fans.
It can be seen from above-mentioned technical scheme that, a kind of cooling tower intelligent control method that the present invention is provided is right when needing
When cooling tower carries out Based Intelligent Control, the air of Inlet and outlet water temperature value and detection cooling tower place environment by detecting cooling tower
The air enthalpy of the Inlet and outlet water temperature value of cooling tower and cooling tower place environment is combined to enter blower fan of cooling tower unit by enthalpy
Row control, is controlled relative to the Inlet and outlet water temperature value in prior art only for cooling tower, can realize to cooling down tower temperature
The flexible of degree, improves reliability and energy-saving effect.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of method flow diagram of cooling tower intelligent control method embodiment 1 disclosed by the invention；
Fig. 2 is a kind of method flow diagram of cooling tower intelligent control method embodiment 2 disclosed by the invention；
Fig. 3 is a kind of structural representation of cooling tower intelligence control system embodiment 1 disclosed by the invention；
Fig. 4 is a kind of structural representation of cooling tower intelligence control system embodiment 2 disclosed by the invention.
Specific embodiment
Accompanying drawing in below in conjunction with the embodiment of the present invention, to the embodiment of the present invention in technical scheme carry out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiment.It is based on
Embodiment in the present invention, it is all other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
As shown in figure 1, for a kind of method flow diagram of cooling tower intelligent control method embodiment 1 disclosed by the invention, should
Method may comprise steps of：
S101, the Inlet and outlet water temperature value of detection cooling tower；
When needing to carry out Based Intelligent Control to cooling tower, when blower fan unit is started shooting, preset whole blower fan of cooling tower are opened
After time, the turnover coolant-temperature gage of real-time detection cooling tower gets the Inlet and outlet water temperature value of cooling tower in real time.
S102, the air enthalpy of detection cooling tower place environment；
When the Inlet and outlet water temperature value of cooling tower is detected, while the air enthalpy to cooling tower place environment is detected,
Wherein, described air enthalpy can be together decided on by outside air temperature, humidity, wind speed and air pressure.
S103, based on Inlet and outlet water temperature value and air enthalpy control blower fan of cooling tower unit.
After the air enthalpy of the Inlet and outlet water temperature value and cooling tower place environment that detect cooling tower, based on Inlet and outlet water
Temperature value and air enthalpy are flexibly controlled to the unit of blower fan of cooling tower.
In sum, in the above-described embodiments, when needing to carry out Based Intelligent Control to cooling tower, by detecting cooling tower
Inlet and outlet water temperature value and the air enthalpy of detection cooling tower place environment, by the Inlet and outlet water temperature value of cooling tower and cooling tower institute
Combine in the air enthalpy of environment and blower fan of cooling tower unit be controlled, relative in prior art only for cooling tower
Inlet and outlet water temperature value is controlled, and can realize the flexible to cooling tower temperature, improves reliability and energy-saving effect.
As shown in Fig. 2 for a kind of method flow diagram of cooling tower intelligent control method embodiment 2 disclosed by the invention, should
Method may comprise steps of：
S201, the Inlet and outlet water temperature value of detection cooling tower；
When needing to carry out Based Intelligent Control to cooling tower, when blower fan unit is started shooting, preset whole blower fan of cooling tower are opened
After time, the turnover coolant-temperature gage of real-time detection cooling tower gets the Inlet and outlet water temperature value of cooling tower in real time.
S202, the air enthalpy of detection cooling tower place environment；
When the Inlet and outlet water temperature value of cooling tower is detected, while the air enthalpy to cooling tower place environment is detected,
Wherein, described air enthalpy can be together decided on by outside air temperature, humidity and wind speed.For example, cooled down by detection
The air temperature value of tower place environment, the ambient temperature value of detection cooling tower place environment and detection cooling tower place environment
Wind speed is determining the air enthalpy of cooling tower place environment.
The run time order of each blower fan in S203, accumulative blower fan unit；
During the fan operation in blower fan unit, record in the time of each unit operation, and accumulative blower fan unit
The run time order of each blower fan.
S204, the run time sequential control based on each blower fan in Inlet and outlet water temperature value and air enthalpy and blower fan unit
The operation quantity of blower fan of cooling tower unit and operation power.
When each in Inlet and outlet water temperature value, the air enthalpy of cooling tower place environment and the blower fan unit for detect cooling tower
Run time after the run time order of blower fan, based on each blower fan in Inlet and outlet water temperature value and air enthalpy and blower fan unit
The operation quantity of sequential control blower fan of cooling tower unit and operation power.
Specifically, the turnover coolant-temperature gage to detecting judges, judges whether the Inlet and outlet water temperature value of cooling tower is more than
First preset temperature value, wherein, the first described preset temperature value flexibly can be set according to the actual requirements.When judgement cooling
When the Inlet and outlet water temperature value of tower is more than the first preset temperature value, the operation number of units for increasing blower fan is now needed, for the machine of blower fan
Group, according to Cumulative Elapsed Time, short blower fan of first startup optimization time, the blower fan of rear startup optimization time length, by first starting
The short blower fan of run time so that the frequency of usage of the middle blower fan of blower fan unit is more balanced, extends whole blower fan unit
Service life.Meanwhile, when the Inlet and outlet water temperature value of cooling tower is more than the first preset temperature value, according to Inlet and outlet water temperature value and the
The size of the difference of one preset temperature value, output optimal control parameter are flexibly carried to the operation power of blower fan of cooling tower unit
High；When the Inlet and outlet water temperature value of the cooling tower is less than or equal to the first preset temperature value, now in order to avoid the waste of energy consumption
The operation number of units for reducing blower fan is needed, according to Cumulative Elapsed Time, short blower fan of first startup optimization time, the rear startup optimization time
Long blower fan, by the blower fan that the first startup optimization time is short so that the frequency of usage of the middle blower fan of blower fan unit is more balanced, prolongs
The service life of whole blower fan unit is grown.Meanwhile, when the Inlet and outlet water temperature value of cooling tower is less than or equal to the first preset temperature value
When, according to Inlet and outlet water temperature value and the size of the difference of the first preset temperature value, output optimal control parameter is to the cooling tower wind
The operation power of machine unit is reduced.
Specifically, in real time air enthalpy is judged, judges the air enthalpy whether more than the second preset value；Its
In, it should be noted that the second described preset value is according to current air temperature value, air humidity value, wind speed and gas
Pressure value calculates determination in real time.When the air enthalpy is more than the second preset value, the operation number of units for increasing blower fan is now needed,
According to Cumulative Elapsed Time, short blower fan of first startup optimization time, the blower fan of rear startup optimization time length, by first startup optimization
Time short blower fan so that the frequency of usage of the middle blower fan of blower fan unit is more balanced, extends the use of whole blower fan unit
Life-span.Meanwhile, when air enthalpy is more than the second preset value, according to air enthalpy and the size of the difference of the second preset temperature value,
Output optimal control parameter is improved to the operation power of the blower fan of cooling tower unit；When the air enthalpy is less than or equal to
During the second preset value, the operation number of units for reducing blower fan, according to Cumulative Elapsed Time, short wind of first startup optimization time is now needed
Machine, the blower fan of rear startup optimization time length, by the blower fan that the first startup optimization time is short so that the middle blower fan of blower fan unit makes
More balanced with the frequency, extend the service life of whole blower fan unit.Meanwhile, when air enthalpy is less than or equal to the second preset value
When, according to air enthalpy and the size of the difference of the second preset temperature value, output optimal control parameter is to the blower fan of cooling tower machine
The operation power of group is reduced.When whether air enthalpy is judged more than maximum preset value, wherein, when air enthalpy is more than maximum
During preset value, wherein it is desired to illustrate, described maximum preset value be according to current air temperature value, air humidity value,
Wind speed and atmospheric pressure value calculate determination in real time.Now outdoor environmental conditions are not suitable for starting blower fan, and blower fan is closed in now control
All blower fans in unit.
In sum, system can calculate the sky of current time according to humidity, temperature value and the wind speed analysis meter for detecting
The saturated conditions of air humidity degree, the operation power of suitable control blower fan of cooling tower so as to adapt to currently possible evaporation demand, prevent
As air humidity is too big, cooling tower increases operation power on the contrary as cooling effect declines waste occurs.
As shown in figure 3, for a kind of structural representation of cooling tower intelligence control system embodiment 1 disclosed by the invention, should
System can include：First detection means 301, second detection device 302 and controller 303；Wherein：
First detection means 301 of the Inlet and outlet water temperature value of detection cooling tower is connected with controller 303, entering cooling tower
Leaving water temperature value is sent to controller 303；
When needing to carry out Based Intelligent Control to cooling tower, when blower fan unit is started shooting, preset whole blower fan of cooling tower are opened
After time, the turnover coolant-temperature gage of real-time detection cooling tower gets the Inlet and outlet water temperature value of cooling tower in real time.
The second detection device 302 of the air enthalpy of detection cooling tower place environment is connected with controller 303, by cooling tower
The air enthalpy of place environment is sent to controller 303；
When the Inlet and outlet water temperature value of cooling tower is detected, while the air enthalpy to cooling tower place environment is detected,
Wherein, described air enthalpy can be together decided on by outside air temperature, humidity, wind speed and air pressure.
Controller 303 is based on the Inlet and outlet water temperature value and air enthalpy control blower fan of cooling tower unit for receiving.
After the air enthalpy of the Inlet and outlet water temperature value and cooling tower place environment that detect cooling tower, based on Inlet and outlet water
Temperature value and air enthalpy are flexibly controlled to the unit of blower fan of cooling tower.
In sum, in the above-described embodiments, when needing to carry out Based Intelligent Control to cooling tower, by detecting cooling tower
Inlet and outlet water temperature value and the air enthalpy of detection cooling tower place environment, by the Inlet and outlet water temperature value of cooling tower and cooling tower institute
Combine in the air enthalpy of environment and blower fan of cooling tower unit be controlled, relative in prior art only for cooling tower
Inlet and outlet water temperature value is controlled, and can realize the flexible to cooling tower temperature, improves reliability and energy-saving effect.
As shown in figure 4, for a kind of structural representation of cooling tower intelligence control system embodiment 2 disclosed by the invention, should
System can include：First detection means 401, second detection device 402, controller 403 and timer 404；
First detection means 401 of the Inlet and outlet water temperature value of detection cooling tower is connected with controller 403, entering cooling tower
Leaving water temperature value is sent to controller 403；
When needing to carry out Based Intelligent Control to cooling tower, when blower fan unit is started shooting, preset whole blower fan of cooling tower are opened
After time, the turnover coolant-temperature gage of real-time detection cooling tower gets the Inlet and outlet water temperature value of cooling tower in real time.
The second detection device 402 of the air enthalpy of detection cooling tower place environment is connected with controller 403, by cooling tower
The air enthalpy of place environment is sent to controller 403；
When the Inlet and outlet water temperature value of cooling tower is detected, while the air enthalpy to cooling tower place environment is detected,
Wherein, described air enthalpy can be together decided on by outside air temperature, humidity and wind speed.For example, by temperature sensing
The air temperature value of device detection cooling tower place environment, the ambient temperature value for detecting cooling tower place environment by humidity sensor
And the air enthalpy of cooling tower place environment is determined by the wind speed of air velocity transducer detection cooling tower place environment.
The timer 404 of the run time order of each blower fan in accumulative blower fan unit；
During the fan operation in blower fan unit, record in the time of each unit operation, and accumulative blower fan unit
The run time order of each blower fan.
Run time order of the controller 403 based on each blower fan in Inlet and outlet water temperature value and air enthalpy and blower fan unit
The operation quantity of control blower fan of cooling tower unit and operation power.
When each in Inlet and outlet water temperature value, the air enthalpy of cooling tower place environment and the blower fan unit for detect cooling tower
Run time after the run time order of blower fan, based on each blower fan in Inlet and outlet water temperature value and air enthalpy and blower fan unit
The operation quantity of sequential control blower fan of cooling tower unit and operation power.
Specifically, first comparator is judged to the turnover coolant-temperature gage for detecting, and judges the turnover coolant-temperature gage of cooling tower
Whether value is more than the first preset temperature value, and wherein, the first described preset temperature value flexibly can be set according to the actual requirements.
When the Inlet and outlet water temperature value for judging cooling tower is more than the first preset temperature value, the operation number of units for increasing blower fan is now needed, the
Unit of one processor at this point for blower fan, according to Cumulative Elapsed Time, short blower fan of first startup optimization time, rear startup optimization
The blower fan of time length, by the blower fan that the first startup optimization time is short so that the frequency of usage of the middle blower fan of blower fan unit is more equal
Weighing apparatus, extends the service life of whole blower fan unit.Meanwhile, when the Inlet and outlet water temperature value of cooling tower is more than the first preset temperature value
When, according to Inlet and outlet water temperature value and the size of the difference of the first preset temperature value, output optimal control parameter is to blower fan of cooling tower machine
The operation power of group is flexibly improved；When the Inlet and outlet water temperature value of the cooling tower is less than or equal to the first preset temperature value
When, now in order to avoid the waste of energy consumption needs the operation number of units for reducing blower fan, first processor is according to Cumulative Elapsed Time, first
Startup optimization time short blower fan, the blower fan of rear startup optimization time length, by the blower fan that the first startup optimization time is short so that wind
The frequency of usage of the middle blower fan of machine unit is more balanced, extends the service life of whole blower fan unit.Meanwhile, when cooling tower
When Inlet and outlet water temperature value is less than or equal to the first preset temperature value, big with the difference of the first preset temperature value according to Inlet and outlet water temperature value
Little, output optimal control parameter reduces to the operation power of the blower fan of cooling tower unit.
Specifically, air enthalpy is judged by the second comparator, judges the air enthalpy whether more than second
Preset value；, wherein it is desired to illustrate, the second described preset value is according to current air temperature value, air humidity value, wind
Speed and atmospheric pressure value calculate determination in real time.When the air enthalpy is more than the second preset value, now need to increase blower fan
Operation number of units, second processing device according to Cumulative Elapsed Time, short blower fan of first startup optimization time, rear startup optimization time length
Blower fan, by the blower fan that the first startup optimization time is short so that the frequency of usage of the middle blower fan of blower fan unit is more balanced, extends
The service life of whole blower fan unit.Meanwhile, when air enthalpy is more than the second preset value, default according to air enthalpy and second
The size of the difference of temperature value, output optimal control parameter are improved to the operation power of the blower fan of cooling tower unit；Work as institute
When air enthalpy is stated less than or equal to the second preset value, now need the operation number of units for reducing blower fan, second processing device is according to accumulation
Run time, short blower fan of first startup optimization time, the blower fan of rear startup optimization time length are short by the first startup optimization time
Blower fan so that the frequency of usage of the middle blower fan of blower fan unit is more balanced, extends the service life of whole blower fan unit.With
When, when air enthalpy is less than or equal to the second preset value, according to air enthalpy and the size of the difference of the second preset temperature value, output
Optimal control parameter reduces to the operation power of the blower fan of cooling tower unit.When the second comparator judges that air enthalpy is
No more than maximum preset value, wherein it is desired to illustrate, described maximum preset value is according to current air temperature value, sky
Air humidity angle value, wind speed and atmospheric pressure value calculate determination in real time.When air enthalpy is more than maximum preset value, now outdoor environment
Condition is not suitable for starting blower fan, all blower fans that now second processing device control is closed in blower fan unit.
In sum, system can calculate the sky of current time according to humidity, temperature value and the wind speed analysis meter for detecting
The saturated conditions of air humidity degree, the operation power of suitable control blower fan of cooling tower so as to adapt to currently possible evaporation demand, prevent
As air humidity is too big, cooling tower increases operation power on the contrary as cooling effect declines waste occurs.
In this specification, each embodiment is described by the way of going forward one by one, and what each embodiment was stressed is and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
Multiple modifications of these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope for causing.
Claims (10)
1. a kind of cooling tower intelligent control method, it is characterised in that include：
The Inlet and outlet water temperature value of detection cooling tower；
Detect the air enthalpy of cooling tower place environment；
Based on the Inlet and outlet water temperature value and air enthalpy control blower fan of cooling tower unit.
2. method according to claim 1, it is characterised in that also include：
Add up the run time order of each blower fan in the blower fan unit；
Accordingly, it is specially based on the Inlet and outlet water temperature value and air enthalpy control blower fan of cooling tower unit：
Run time order based on each blower fan in the Inlet and outlet water temperature value and the air enthalpy and the blower fan unit
The operation quantity of control blower fan of cooling tower unit and operation power.
3. method according to claim 2, it is characterised in that the air enthalpy of the detection cooling tower place environment
Including：
Detect the air temperature value of cooling tower place environment；
Detect the environmental wet angle value of cooling tower place environment；
Detect the wind speed of cooling tower place environment；
The atmospheric pressure value of detection shrink cooling tower place environment.
4. method according to claim 3, it is characterised in that described based on the Inlet and outlet water temperature value and the air enthalpy
The operation quantity of the run time sequential control blower fan of cooling tower unit of each blower fan and operation in value and the blower fan unit
Power includes：
Judge the Inlet and outlet water temperature value of the cooling tower whether more than the first preset temperature value；
When the Inlet and outlet water temperature value of the cooling tower is more than the first preset temperature value, control increases the operation number of units of blower fan, root
According to Cumulative Elapsed Time, short blower fan of first startup optimization time, the blower fan of rear startup optimization time length, while improve the cooling
The operation power of tower blower fan unit；
When the Inlet and outlet water temperature value of the cooling tower is less than or equal to the first preset temperature value, control reduces the operation platform of blower fan
Number, according to Cumulative Elapsed Time, short blower fan of first startup optimization time, the blower fan of rear startup optimization time length, while reduce institute
State the operation power of blower fan of cooling tower unit.
5. method according to claim 4, it is characterised in that described based on the Inlet and outlet water temperature value and the air enthalpy
The operation quantity of the run time sequential control blower fan of cooling tower unit of each blower fan and operation in value and the blower fan unit
Power includes：
Judge the air enthalpy whether more than the second preset value；
When the air enthalpy is more than the second preset value, control increases the operation number of units of blower fan, according to Cumulative Elapsed Time, first
Startup optimization time short blower fan, the blower fan of rear startup optimization time length, while improve the operation of the blower fan of cooling tower unit
Power；
When the air enthalpy is less than or equal to the second preset value, control reduces the operation number of units of blower fan, according to during accumulation operation
Between, short blower fan of first startup optimization time, the blower fan of rear startup optimization time length control to reduce the blower fan of cooling tower unit
Operation power；
When the air enthalpy is more than maximum preset value, all blower fans that control is closed in blower fan unit.
6. a kind of cooling tower intelligence control system, it is characterised in that include：First detection means, second detection device and control
Device；Wherein：
First detection means of the Inlet and outlet water temperature value of the detection cooling tower is connected with the controller, by the cooling tower
Inlet and outlet water temperature value is sent to the controller；
The second detection device of the air enthalpy of the detection cooling tower place environment is connected with the controller, will be described
The air enthalpy of cooling tower place environment is sent to the controller；
The controller is based on the Inlet and outlet water temperature value and the air enthalpy control blower fan of cooling tower unit for receiving.
7. system according to claim 6, it is characterised in that also include：
Add up the timer of the run time order of each blower fan in the blower fan unit；
Accordingly, the controller is based on each wind in the Inlet and outlet water temperature value and the air enthalpy and the blower fan unit
The operation quantity of the run time sequential control blower fan of cooling tower unit of machine and operation power.
8. system according to claim 7, it is characterised in that the second detection device includes：
Detect the temperature sensor of the air temperature value of cooling tower place environment；
Detect the humidity sensor of the environmental wet angle value of cooling tower place environment；
Detect the air velocity transducer of the wind speed of cooling tower place environment；
Detect the barometer of the atmospheric pressure value of cooling tower place environment.
9. system according to claim 8, it is characterised in that the controller includes：
Judge whether the Inlet and outlet water temperature value of the cooling tower is more than the first comparator of the first preset temperature value；
When the Inlet and outlet water temperature value of the cooling tower is more than the first preset temperature value, control increases the operation number of units of blower fan, root
According to Cumulative Elapsed Time, short blower fan of first startup optimization time, the blower fan of rear startup optimization time length, while improve the cooling
The first processor of the operation power of tower blower fan unit；
The first processor, is additionally operable to when the Inlet and outlet water temperature value of the cooling tower is less than or equal to the first preset temperature value,
Control reduces the operation number of units of blower fan, according to Cumulative Elapsed Time, short blower fan of first startup optimization time, and the rear startup optimization time
Long blower fan, while reduce the operation power of the blower fan of cooling tower unit.
10. system according to claim 9, it is characterised in that the controller also includes：
Judge whether the air enthalpy is more than the second comparator of the second preset value；
When the air enthalpy is more than the second preset value, control increases the operation number of units of blower fan, according to Cumulative Elapsed Time, first
Startup optimization time short blower fan, the blower fan of rear startup optimization time length, while increase the operation of the blower fan of cooling tower unit
The second processing device of power；
The second processing device, is additionally operable to, when the air enthalpy is less than or equal to the second preset value, control the fortune of less blower fan
Row number of units, according to Cumulative Elapsed Time, short blower fan of first startup optimization time, the blower fan of rear startup optimization time length, while drop
The operation power of the low blower fan of cooling tower unit；
Second comparator, is additionally operable to judge that the air enthalpy is more than maximum preset value；
The processor, is additionally operable to when the air enthalpy is more than maximum preset value, and it is all that control is closed in blower fan unit
Blower fan.
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| CN111473479A (en) * | 2020-04-21 | 2020-07-31 | 深圳市英维克科技股份有限公司 | Cooling system control method and related equipment |
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Application publication date: 20170315 |