CN104279722B - Control method of air conditioner energy saving control device - Google Patents
Control method of air conditioner energy saving control device Download PDFInfo
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- CN104279722B CN104279722B CN201410161603.XA CN201410161603A CN104279722B CN 104279722 B CN104279722 B CN 104279722B CN 201410161603 A CN201410161603 A CN 201410161603A CN 104279722 B CN104279722 B CN 104279722B
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- temperature
- output unit
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- host computer
- frozen water
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Classifications
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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
- F24F11/30—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
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides an air conditioner energy saving control device and a control method for the same, which are used for controlling a water chilling unit. The air conditioner energy saving control device comprises a central processing unit storing a target temperature, a temperature detecting unit electrically coupled to the water chilling unit and the central processing unit, and an output unit electrically coupled to the water chilling unit and the central processing unit. The temperature detecting unit detects chilled water temperature of the water chilling unit and transmits the chilled water temperature to the central processing unit; the central processing unit controls the water chilling unit through the output unit according to the chilled water temperature in different ways. According to the air conditioner energy saving control device and the control method for the same, the accuracy for controlling the temperature is high, the water chilling unit works in low running current, and the aims of saving energy, reducing emission and accurately controlling the temperature are fulfilled further.
Description
Technical field
The present invention with regard to a kind of control device, more particularly to a kind of air conditioner energy saving controller and its control method.
Background technology
Air-conditioning device be for the equipment that controls indoor temperature in the modern life, such as controlling house in, office or
Temperature in factory building, particularly in large space, the control of air-conditioning device all the more seems important.
By taking ice water host computer as an example, its function mode is first will to be sent to an interior with the frozen water of a default leaving water temperature
Air-conditioning box, frozen water carries out temperature after heat exchange with room air can be improved, the action that then can be cooled down again, obtain what is lowered the temperature
Send back ice water host computer after cooling water again.
But at present the thermoregulator accuracy of ice water host computer is ± 1 DEG C Celsius, it is impossible to remake more precise control, often
The waste of electric power can be often caused, in the case where environmental consciousness now is surging, it is difficult to reach the target of energy-saving and emission-reduction.
Accordingly, it would be desirable to propose a solution to the above-mentioned thermoregulator problem of more precise control that is unable to.
The content of the invention
One of present invention purpose is to provide a kind of air conditioner energy saving controller and its control method, and it can be to ice water host computer
Frozen water temperature more accurately adjusted.
To reach above-mentioned purpose, it is used to control an ice water host computer, the air-conditioning according to the air conditioner energy saving controller of the present invention
Device includes：One CPU, stores a target temperature, the target temperature be one of ice water host computer frozen water temperature most
The temperature value that need to be reached eventually；One temperature detecting unit, is electrically coupled to the ice water host computer and the CPU；And one is defeated
Go out unit, be electrically coupled to the ice water host computer and the CPU.The temperature detecting unit detects being somebody's turn to do for the ice water host computer
Frozen water temperature simultaneously transmits the frozen water temperature to the CPU.When the frozen water temperature is more than a higher limit, the central authorities are processed
Unit produces loading instruction or unloading command to the output unit, and making the output unit control the ice water host computer carries out loading operation
Or unloading operation.The frozen water temperature less than the higher limit and more than one on median when, the CPU produces loading and refers to
Make to the output unit, making the output unit control the ice water host computer carries out loading operation.The frozen water temperature is less than centre on this
Value and more than one on stationary value when, the CPU calculates the rate of temperature change of the frozen water temperature, and according to the frozen water temperature
The rate of temperature change of degree produces and loads instruction or unloading command or keep instruction to the output unit, is somebody's turn to do the output unit control
The frozen water temperature of ice water host computer is towards the target temperature operation.The frozen water temperature is less than stationary value on this and more than the target temperature
When spending, the CPU controls the ice water host computer and is not loaded operation or unloading operation through the output unit.The frozen water
Less than the target temperature and during more than stationary value once, the CPU controls the frozen water to temperature through the output unit
Main frame is not loaded operation or unloading operation.The frozen water temperature less than the lower stationary value and during more than median once, the central authorities
Processing unit calculates the rate of temperature change of the frozen water temperature, and according to the rate of temperature change of the frozen water temperature produce loading instruction or
Keep instruction or unloading command to the output unit, make the output unit control the frozen water temperature of the ice water host computer towards the mesh
Mark temperature operation.Less than the lower median and during more than a lower limit, the CPU produces unloading and refers to the frozen water temperature
The output unit is made and is sent to, making the output unit control the ice water host computer carries out unloading operation.The frozen water temperature is less than should
During lower limit, the CPU produces stop command and is sent to the output unit, makes the output unit control the frozen water
Main frame carries out jerk operation.
In the air conditioner energy saving controller of the present invention, when the frozen water temperature is more than the higher limit, the CPU
Loading instruction is produced to the output unit, making the output unit control the ice water host computer is carried out after loading operation, and the central authorities are processed
Unit further calculates the rate of temperature change of the frozen water temperature, when rate of temperature change is more than a temperature change setting value, in this
Central Processing Unit can produce unloading command to the output unit, and making the output unit control the ice water host computer carries out unloading operation,
When rate of temperature change is less than the temperature change setting value, the CPU can produce loading instruction to the output unit,
Making the output unit control the ice water host computer carries out loading operation.
In the air conditioner energy saving controller of the present invention, stationary value adds 0.3 DEG C for the target temperature on this, the lower stationary value
Subtract 0.3 DEG C for the target temperature.
In the air conditioner energy saving controller of the present invention, median adds 1 DEG C for the target temperature on this, and the lower median is
The target temperature subtracts 1 DEG C.
In the air conditioner energy saving controller of the present invention, the higher limit is at least above 4 DEG C of the target temperature.
In the air conditioner energy saving controller of the present invention, the lower limit is 4 DEG C.
In the air conditioner energy saving controller of the present invention, further include that an input block is electrically coupled to the ice water host computer
With the CPU, a warning escape signal is produced when the ice water host computer breaks down escape and is sent to the input list
The warning escape signal is sent to the CPU by unit, the input block again.
In the air conditioner energy saving controller of the present invention, further include that an electric detecting unit is electrically coupled to the frozen water
Main frame and the CPU, the electric detecting unit is detected the operation voltage and revolution electric current of the ice water host computer and is transmitted
To the CPU.
In the air conditioner energy saving controller of the present invention, further include that a communication unit is electrically coupled to an ammeter and is somebody's turn to do
CPU, the communication unit is used to receiving the ammeter and transmits one of ice water host computer electricity consumption number of degrees, and by the electricity consumption
The number of degrees are sent to the CPU.
To reach above-mentioned purpose, it is used to control a frozen water master according to the control method of the air conditioner energy saving controller of the present invention
Machine, the air conditioner energy saving controller includes a CPU, a temperature detecting unit and an output unit, the central authorities
Processing unit stores a target temperature, and the target temperature is the temperature that one of ice water host computer frozen water temperature finally need to reach
Value, the control method of the air conditioner energy saving controller includes：
A. start；
B. the temperature detecting unit detects the frozen water temperature of the ice water host computer and transmits the frozen water temperature to the centre
Reason unit；
C. the CPU judges whether the frozen water temperature is more than a higher limit, if so, execution step K, if it is not, holding
Row step D；
D. the CPU judge the frozen water temperature whether less than the higher limit and more than one on median, if so,
Execution step L, if it is not, execution step E；
E. the CPU judge the frozen water temperature whether less than median on this and more than one on stationary value, if
It is, execution step M, if it is not, execution step F；
F. whether the CPU judges the frozen water temperature less than stationary value on this and more than the target temperature, if
It is, execution step N, if it is not, execution step G；
G. whether the CPU judges the frozen water temperature less than the target temperature and more than stationary value once, if
It is, execution step O, if it is not, execution step H；
H. whether the CPU judges the frozen water temperature less than the lower stationary value and more than median once, if
It is, execution step P, if it is not, execution step I；
I. the CPU judges the frozen water temperature whether less than the lower median and more than a lower limit, if so,
Execution step Q, if it is not, execution step J；
J. the CPU judges whether the frozen water temperature is less than the lower limit, if so, execution step R, if it is not, holding
Row step S；
K. the CPU produces loading instruction or unloading command to the output unit, is somebody's turn to do the output unit control
Ice water host computer carries out loading operation or unloading operation and execution step S；
L. the CPU produces loading instruction to the output unit, makes the output unit control the ice water host computer and enters
Row loading operation and execution step S；
M. the CPU calculates the rate of temperature change of the frozen water temperature, and according to the temperature change of the frozen water temperature
Rate generation loading instruction or unloading command keep instruction to the output unit, make the output unit control being somebody's turn to do for the ice water host computer
Frozen water temperature is operated and execution step S towards the target temperature；
N. the CPU through the output unit control the ice water host computer be not loaded operation or unloading operation simultaneously
Execution step S；
O. the CPU through the output unit control the ice water host computer be not loaded operation or unloading operation simultaneously
Execution step S；
P. the CPU calculates the rate of temperature change of the frozen water temperature, and according to the temperature change of the frozen water temperature
Rate generation loading instruction keeps instruction or unloading command to the output unit, makes the output unit control being somebody's turn to do for the ice water host computer
Frozen water temperature is operated and execution step S towards the target temperature；
Q. the CPU produces unloading command and is sent to the output unit, makes the output unit control the frozen water
Main frame carries out unloading operation and execution step S；
R. the CPU produces stop command and is sent to the output unit, makes the output unit control the frozen water
Main frame carries out jerk operation and execution step S；And
S. terminate.
In the control method of the air conditioner energy saving controller of the present invention, in above-mentioned steps K, the CPU is produced
To the output unit, making the output unit control the ice water host computer is carried out after loading operation, the CPU for loading instruction
The rate of temperature change of the frozen water temperature is determined whether, when rate of temperature change is more than a temperature change setting value, the centre
Reason unit can produce unloading command to the output unit, and making the output unit control the ice water host computer carries out unloading operation, works as temperature
When degree rate of change is less than the temperature change setting value, the CPU can produce loading instruction to the output unit, make this
Output unit controls the ice water host computer and carries out loading operation.
In the control method of the air conditioner energy saving controller of the present invention, stationary value adds 0.3 DEG C for the target temperature on this,
The lower stationary value subtracts 0.3 DEG C for the target temperature.
In the control method of the air conditioner energy saving controller of the present invention, median adds 1 DEG C for the target temperature on this, should
Lower median subtracts 1 DEG C for the target temperature.
In the control method of the air conditioner energy saving controller of the present invention, the higher limit is at least above 4 DEG C of the target temperature.
In the control method of the air conditioner energy saving controller of the present invention, the lower limit is 4 DEG C.
The accuracy of the air conditioner energy saving controller of the present invention and its control method control temperature preferably, make ice water host computer with
Relatively low revolution electric current operation, and then reach energy-saving and emission-reduction and the accurate target of temperature control.
Description of the drawings
Fig. 1 illustrates the air conditioner energy saving controller according to one embodiment of the invention.
Fig. 2 illustrates the controlling curve of the air conditioner energy saving controller according to the present invention.
Fig. 3 illustrates the control method of the air conditioner energy saving controller of Fig. 1.
The flow chart determined whether after the step of Fig. 4 illustrates Fig. 3 S400.
Specific embodiment
The explanation of following embodiment is the particular implementation implemented to illustrate the present invention may be used to reference to additional schema
Example.
Fig. 1 is referred to, it illustrates the air conditioner energy saving controller 1 according to one embodiment of the invention.
Air conditioner energy saving controller 1 is used to control an ice water host computer 3, that is to say, that the electrical coupling of air conditioner energy saving controller 1
It is connected to ice water host computer 3.
The air conditioner energy saving controller 1 of the present invention includes a CPU（Central Processing Unit；
CPU）10th, a temperature detecting unit 12, an output unit 14, an input block 16, an electric detecting unit 18 and a communication
Unit 20.
Input block 16 is electrically coupled to ice water host computer 3 and CPU 10, when ice water host computer 3 breaks down escape
When, a warning escape signal can be produced and be sent to input block 16, during input block 16 is again sent to the warning escape signal
Central Processing Unit 10.In an embodiment, input block 16 is such as, but not limited to digital input unit.
Electrically detecting unit 18 is electrically coupled to ice water host computer 3 and CPU 10, and electric detecting unit 18 is used for
The operation voltage and revolution electric current of detecting ice water host computer 3 are simultaneously sent to CPU 10.In an embodiment, electrically detect
Survey unit 18 and be such as, but not limited to analogue input unit.
Temperature detecting unit 12 is electrically coupled to ice water host computer 3 and CPU 10, for detect ice water host computer 3 it
One frozen water enters during coolant-temperature gage, a frozen water leaving water temperature, a cooling water enter coolant-temperature gage and a cooling water leaving water temperature and be sent to
Central Processing Unit 10.In an embodiment, temperature detecting unit 12 is such as, but not limited to thermistor.
Communication unit 20 is electrically coupled to an ammeter 5 and CPU 10, and for receiving ammeter 5 frozen water master is transmitted
The revolution electric current and voltage of machine 3, and revolution electric current and voltage are sent to into CPU 10.
Output unit 14 is electrically coupled to ice water host computer 3 and CPU 10, and CPU 10 is according to temperature
The various information that detecting unit 12, input block 16, electric detecting unit 18 and communication unit 20 are transmitted, through output unit
Startup, stopping and the various operations of 14 control ice water host computers 3.In an embodiment, output unit 14 is such as but not limited to counted
Word output device.
The air conditioner energy saving controller 1 of the present invention can improve the frozen water temperature of ice water host computer 3（It can be frozen water leaving water temperature
Or frozen water enters coolant-temperature gage）Accuracy, make ice water host computer 3 and operated with relatively low revolution electric current, reach the purpose of energy-saving and emission-reduction, with
Under will be described the controlling mechanism of air conditioner energy saving controller 1.
The controlling curve of the air conditioner energy saving controller according to the present invention is illustrated please refer to Fig. 1 and Fig. 2, Fig. 2, more
Specifically, the controlling curve is the frozen water leaving water temperature that CPU 10 controls ice water host computer 3 through output unit 14
Change curve, wherein X-axis be the time, Y-axis for ice water host computer 3 current frozen water leaving water temperature.The controlling curve of Fig. 2 is this
The resulting preferred curve after constantly test of invention.
CPU 10 stores the frozen water leaving water temperature that an ice water host computer finally need to reach, and it can be according to demand
User's Interface is passed through by user（User Interface；UI）Setting, by taking the controlling curve of Fig. 2 as an example, ice water host computer is most
The frozen water water outlet temperature setting that need to be reached eventually is 7 DEG C Celsius.
Temperature detecting unit 12 will detect the current frozen water leaving water temperature of ice water host computer 3 and be sent to CPU
10, using the foundation as judgement and control.It is below that the frozen water leaving water temperature of ice water host computer 3 is final for ease of illustrating and distinguishing
The temperature value that need to be reached is referred to as target temperature, and temperature detecting unit 12 detects the current frozen water leaving water temperature of ice water host computer 3
Referred to as current temperature.
CPU 10 is received after the current temperature that temperature detecting unit 12 is transmitted, according to the big abortion of current temperature
A raw control instruction is simultaneously sent to output unit 14, the frozen water water outlet by output unit 14 according to control instruction to ice water host computer 3
Temperature（I.e. current temperature）Carry out temperature adjustment.
When CPU 10 judge current temperature be more than a higher limit when, that is, positioned at first loading zone of Fig. 2 when,
Represent that current temperature is big with target temperature difference, CPU 10 produces loading instruction to output unit 14, makes output list
Unit 14 controls ice water host computer 3 and carries out loading operation, and as a example by determining the control of rotating speed change refrigerant, the loading operation is to specify rotating speed
In the case of, increase refrigerant to reach loading operation.Additionally, in a preferred embodiment, current temperature is located at the first loading zone
When, to avoid loading the excessive velocities of operation, CPU 10 is producing loading instruction to output unit 14, is making output
The control ice water host computer 3 of unit 14 carries out that the rate of temperature change of current temperature can be determined whether after loading operation（That is, calculate warm
The slope of degree change）, when rate of temperature change is more than a temperature change setting value, CPU 10 can produce a unloading and refer to
Make to output unit 14, make the control ice water host computer 3 of output unit 14 carry out unloading operation, use and avoid loading too fast problem
It is raw, that is to say, that, it is to avoid enter the second loading zone with too fast loading velocity, and be desirable to the loading velocity relatively to ease up from
First loading zone enters the second loading zone, preferably to be controlled.
In summary, when the first time of CPU 10 judging that current temperature is more than higher limit, loading can be produced and is referred to
Make to output unit 14, make the control ice water host computer 3 of output unit 14 carry out loading operation, in ice water host computer 3 loading operation is carried out
And CPU 10 judge again current temperature be more than higher limit when, for avoid load operation excessive velocities, centre
Reason unit 10 can determine whether the rate of temperature change of current temperature（That is, the slope of calculating temperature change）, work as rate of temperature change
During more than temperature change setting value, CPU 10 can produce unloading command to output unit 14, control output unit 14
Ice water host computer processed 3 carries out unloading operation, uses and avoids loading too fast problem generation.On the contrary, when rate of temperature change is less than temperature
During degree change setting value, CPU 10 can produce loading instruction to output unit 14, make output unit 14 control frozen water
Main frame 3 carries out again loading operation.So in the first loading zone, CPU 10 may produce loading instruction, also may be used
Can produce unloading command.
When CPU 10 judge current temperature less than higher limit and more than one on median when, that is, at present temperature
Positioned at second loading zone of Fig. 2 when, represent that current temperature is less with target temperature difference, CPU 10 is produced and loaded
Instruct to output unit 14, make the control ice water host computer 3 of output unit 14 carry out loading operation.It is noted that current temperature level
When the second loading zone, CPU 10 only produces loading instruction, without calculating and judging whether rate of temperature change is big
In temperature change setting value, that is, do not consider to load too fast problem.
When CPU 10 judge current temperature less than upper median and more than one on stationary value when, that is, at present temperature
When degree is located at confusion region on Fig. 2, represent that current temperature is less with target temperature difference, CPU 10 can be calculated at present
The rate of temperature change of temperature（That is, the slope of calculating temperature change）Be the rate of rise, descending slope or maintain slope, and according to
Different Slope situation produces load or unload or keeps instruction（That is, select loading instruction or unloading command or keep instruction）Extremely
Output unit 14, the current temperature for making the control ice water host computer 3 of output unit 14 is operated towards the trend of target temperature.
When CPU 10 judges current temperature less than upper stationary value and during more than target temperature, that is, temperature at present
On Fig. 2 during stable region, represent that current temperature is the centre within the permissible range of setting with the difference of target temperature
Reason unit 10 then do not produce load or unload instruction, that is, through output unit 14 control ice water host computer 3 be not loaded operation or
Unloading operation.
When CPU 10 judges current temperature less than target temperature and during more than lower stationary value, that is, temperature at present
It is identical with upper stable region under Fig. 2 during stable region, represent that current temperature is allowing in setting with the difference of target temperature
Within the scope of, CPU 10 does not then produce load or unload instruction, that is, controls ice water host computer through output unit 14
3 are not loaded operation or unloading operation.
When CPU 10 judges current temperature less than lower stationary value and during more than lower median, that is, temperature at present
Identical with upper confusion region under Fig. 2 during confusion region, CPU 10 can calculate the rate of temperature change of current temperature
（That is, the slope of calculating temperature change）It is the rate of rise, descending slope or maintenance slope, and is produced according to Different Slope situation
Loading keeps or unloading command（That is, select loading instruction or keep instruction or unloading command）To output unit 14, output is made
The current temperature of the control ice water host computer 3 of unit 14 is operated towards the trend of target temperature.
When CPU 10 judges current temperature less than lower median and during more than a lower limit, that is, temperature at present
Positioned at the unloading area of Fig. 2 when, CPU 10 produce unloading command to output unit 14, make output unit 14 control frozen water
Main frame 3 carries out unloading operation.
When CPU 10 judges that current temperature is less than lower limit, that is, at present temperature is located at the jerk area of Fig. 2
When, CPU 10 produces stop command to output unit 14, makes the control ice water host computer 3 of output unit 14 carry out jerk behaviour
Make.
It is noted that the operation of above-mentioned loading operation, unloading operation and jerk is known to those skilled in the art,
This does not add to repeat.
Above-mentioned target temperature, higher limit, upper median, upper stationary value, lower stationary value, lower median and lower limit can be with roots
Set through User's Interface by user according to demand, by taking the controlling curve of Fig. 2 as an example, target temperature is set as Celsius 7
DEG C, upper stationary value and lower stationary value are respectively set as ± 0.3 DEG C of target temperature, and upper median and lower median set respectively
For ± 1 DEG C of target temperature, higher limit is set as that lower limit is preferably set as 4 DEG C, lower limit at least above 4 DEG C of target temperature
When the reason for being preferably set as 4 DEG C is that the temperature of water is less than 4 DEG C, its volume can expand, it is therefore necessary to control ice water host computer and enter
Row jerk is operated, and thereby avoids volumetric expansion from causing the problem of pipe breakage to occur.Additionally, the target temperature of Fig. 2, higher limit,
Upper median, upper stationary value, lower stationary value, lower median and lower limit are that the present invention is resulting preferable after constantly test
Value, that is to say, that target temperature, higher limit, upper median, upper stationary value, lower stationary value, lower median and lower limit are not only
Obtain for simple selection or simple test, but different operations are coordinated according to the current temperature of detecting（Such as load operation,
Unload division operation, keep operation and jerk operation）To reach optimal Energy Saving Control effect.
Additionally, it is noted that Fig. 2 is shown the controlling curve of frozen water leaving water temperature, central authorities' process list of the present invention
Unit 10 can also pass through the frozen water of the control ice water host computer 3 of output unit 14 and enter coolant-temperature gage, that is, in advance storage frozen water enters coolant-temperature gage
Change curve, and target temperature is set as that the frozen water of ice water host computer 3 enters the temperature value that coolant-temperature gage finally need to reach, by detecting
The current frozen water of ice water host computer 3 to enter carry out after coolant-temperature gage the control similar with Fig. 2, thereby reaches optimal Energy Saving Control effect.
Fig. 1 to Fig. 3 is referred to, Fig. 3 illustrates the control method of the air conditioner energy saving controller 1 of Fig. 1.
Step S300, starts.
Step S310, the frozen water leaving water temperature of the detecting ice water host computer 3 of temperature detecting unit 12 simultaneously transmits frozen water leaving water temperature
To CPU 10.
Step S320, CPU 10 judges whether frozen water leaving water temperature is more than a higher limit, if so, execution step
S400, if it is not, execution step S330.
Step S330, CPU 10 judge frozen water leaving water temperature whether less than higher limit and more than one in the middle of
It is worth, if so, execution step S410, if it is not, execution step S340.
Step S340, CPU 10 judge frozen water leaving water temperature whether less than upper median and more than one on it is stable
It is worth, if so, execution step S420, if it is not, execution step S350.
Whether step S350, CPU 10 judges frozen water leaving water temperature less than upper stationary value and more than target temperature
Spend, if so, execution step S430, if it is not, execution step S360.
Whether step S360, CPU 10 judges frozen water leaving water temperature less than target temperature and more than stable once
It is worth, if so, execution step S440, if it is not, execution step S370.
Whether step S370, CPU 10 judges frozen water leaving water temperature less than lower stationary value and more than middle once
It is worth, if so, execution step S450, if it is not, execution step S380.
Whether step S380, CPU 10 judges frozen water leaving water temperature less than lower median and more than a lower limit
It is worth, if so, execution step S460, if it is not, execution step S390.
Step S390, CPU 10 judges whether frozen water leaving water temperature is less than lower limit, if so, execution step
S470, if it is not, execution step S480.
Step S400, CPU 10 produces loading instruction or unloading command to output unit 14, makes output unit
14 control ice water host computers 3 carry out loading operation or unloading operation and execution step S480.
Additionally, referring to Fig. 4, the flow chart determined whether after S400 the step of Fig. 4 illustrates Fig. 3.In Fig. 4,
Include after step S400：
Step S402, CPU 10 further calculates the rate of temperature change of frozen water leaving water temperature and judges the temperature
Whether rate of change during more than a temperature change setting value, if so, execution step S404, if it is not, execution step S406.
Step S404, CPU 10 can produce unloading command to output unit 14, make output unit 14 control ice
Water main frame 3 carries out unloading operation and execution step S480.
Step S406, CPU 10 can produce loading instruction to output unit 14, make output unit 14 control ice
Water main frame 3 carries out loading operation and execution step S480.
The purpose of step S402 and S404 is to avoid entering second loading zone of Fig. 2 with too fast loading velocity, and
It is desirable to enter the second loading zone from the first loading zone with relatively gentle loading velocity, preferably to be controlled.
Referring again to Fig. 3, step S410, CPU 10 produces loading instruction to output unit 14, makes output list
Unit 14 controls ice water host computer 3 and carries out loading operation and execution step S480.
Step S420, CPU 10 calculates the rate of temperature change of frozen water leaving water temperature, and goes out water temperature according to frozen water
The rate of temperature change of degree produces loading instruction or unloading command or keeps instruction to output unit 14, makes output unit 14 control ice
The frozen water leaving water temperature of water main frame 3 is operated and execution step S480 towards target temperature.
Step S430, CPU 10 is not loaded operation or unloads through the control ice water host computer 3 of output unit 14
Operation and execution step S480.
Step S440, CPU 10 is not loaded operation or unloads through the control ice water host computer 3 of output unit 14
Operation and execution step S480.
Step S450, CPU 10 calculates the rate of temperature change of frozen water leaving water temperature, and goes out water temperature according to frozen water
The rate of temperature change of degree produces loading instruction or keeps instruction or unloading command to output unit 14, makes output unit 14 control ice
The frozen water leaving water temperature of water main frame 3 is operated and execution step S480 towards target temperature.
Step S460, CPU 10 produces unloading command and is sent to output unit 14, controls output unit 14
Ice water host computer processed 3 carries out unloading operation and execution step S480.
Step S470, CPU 10 produces stop command and is sent to output unit 14, controls output unit 14
Ice water host computer processed 3 carries out jerk operation and execution step S480.
Step S480, terminates.
It is noted that after step S480 terminates, the control method meeting of the air conditioner energy saving controller 1 of the present invention
Start again to repeat from step S300, that is, persistently detect the frozen water leaving water temperature of ice water host computer 3 and water temperature is gone out according to frozen water
Degree makees different controls.
Additionally, said method is the control to frozen water leaving water temperature, in another embodiment, CPU 10 also may be used
Coolant-temperature gage is entered with the frozen water that ice water host computer 3 is controlled through output unit 14, that is, in advance storage frozen water enters the change song of coolant-temperature gage
Line, and target temperature is set as that the frozen water of ice water host computer 3 enters the temperature value that coolant-temperature gage finally need to reach, by detecting ice water host computer
3 current frozen water to enter carry out after coolant-temperature gage the control similar with Fig. 2, thereby reaches optimal Energy Saving Control effect.
In the control method of the air conditioner energy saving controller 1 of the present invention, upper stationary value and lower stationary value are preferably distinguished
It is set as ± 0.3 DEG C of target temperature, upper median and lower median are preferably respectively set as ± 1 DEG C of target temperature, on
Limit value is preferably set as that lower limit is preferably set as 4 DEG C, and lower limit is preferably set as 4 DEG C at least above 4 DEG C of target temperature
When reason is that the temperature of water is less than 4 DEG C, its volume can expand, it is therefore necessary to which controlling ice water host computer carries out jerk operation, thereby
Volumetric expansion is avoided to cause the problem of pipe breakage to occur.
Existing air conditioner energy saving controller is only capable of having carried out ice water host computer the capacity regulating of segmentation, such as 33%, 66%,
99% three-stage is adjusted or 25%, 50%, 75%, 100% four-part form is adjusted, and the accuracy for controlling temperature is poor, the air-conditioning of the present invention
Energy-saving control device 1 and its control method can not only carry out above-mentioned three-stage and four by the application of controlling curve to ice water host computer
The capacity regulating of segmentation, and can further carry out the capacity regulating of stepless, that is, can by the higher limit of setting Fig. 2, on
Median, upper stationary value, lower stationary value, lower median and lower limit reach the stepless regulation from 25% to 100%, control temperature
Accuracy preferably, make ice water host computer 3 and operated with relatively low revolution electric current, and then it is accurate with temperature control to reach energy-saving and emission-reduction
Target.
In sum, although the present invention it is disclosed above with preferred embodiment, but above preferred embodiment and be not used to limit
The system present invention, one of ordinary skill in the art without departing from the spirit and scope of the present invention, can make various changes and profit
Adorn, therefore protection scope of the present invention is defined by the scope that claim is defined.
Claims (6)
1. a kind of control method of air conditioner energy saving controller, for controlling an ice water host computer, the air conditioner energy saving controller bag
Include a CPU, a temperature detecting unit and an output unit, it is characterised in that the CPU storage
There is a target temperature, the target temperature is the temperature value that one of ice water host computer frozen water temperature finally need to reach, the air conditioner energy saving
The control method of control device includes：
A. start；
B. the temperature detecting unit detects the frozen water temperature of the ice water host computer and transmits the frozen water temperature to the central authorities and processes single
Unit；
C. the CPU judges whether the frozen water temperature is more than a higher limit, if so, execution step K, if it is not, performing step
Rapid D；
D. the CPU judge the frozen water temperature whether less than the higher limit and more than one on median, if so, perform
Step L, if it is not, execution step E；
E. the CPU judge the frozen water temperature whether less than median on this and more than one on stationary value, if so, hold
Row step M, if it is not, execution step F；
F. the CPU judges that the frozen water temperature, whether less than stationary value on this and more than the target temperature, is if so, held
Row step N, if it is not, execution step G；
G. the CPU judges that the frozen water temperature, whether less than the target temperature and more than stationary value once, is if so, held
Row step O, if it is not, execution step H；
H. the CPU judges that the frozen water temperature, whether less than the lower stationary value and more than median once, is if so, held
Row step P, if it is not, execution step I；
I. the CPU judges that the frozen water temperature, whether less than the lower median and more than a lower limit, is if so, performed
Step Q, if it is not, execution step J；
J. the CPU judges whether the frozen water temperature is less than the lower limit, if so, execution step R, if it is not, performing step
Rapid S；
K. the CPU produces loading instruction or unloading command to the output unit, makes the output unit control the frozen water
Main frame carries out loading operation or unloading operation and execution step S；
L. the CPU produces loading instruction to the output unit, and making the output unit control the ice water host computer carries out adding
Carry operation and execution step S；
M. the CPU calculates the rate of temperature change of the frozen water temperature, and is produced according to the rate of temperature change of the frozen water temperature
Raw loading instruction or unloading command keep instruction to the output unit, make the output unit control the frozen water of the ice water host computer
Temperature is operated and execution step S towards the target temperature；
N. the CPU controls the ice water host computer and is not loaded operation or unloading operation and performs through the output unit
Step S；
O. the CPU controls the ice water host computer and is not loaded operation or unloading operation and performs through the output unit
Step S；
P. the CPU calculates the rate of temperature change of the frozen water temperature, and is produced according to the rate of temperature change of the frozen water temperature
Raw loading instruction keeps instruction or unloading command to the output unit, makes the output unit control the frozen water of the ice water host computer
Temperature is operated and execution step S towards the target temperature；
Q. the CPU produces unloading command and is sent to the output unit, makes the output unit control the ice water host computer
Carry out unloading operation and execution step S；
R. the CPU produces stop command and is sent to the output unit, makes the output unit control the ice water host computer
Carry out jerk operation and execution step S；And
S. terminate.
2. the control method of air conditioner energy saving controller according to claim 1, it is characterised in that in step K, in this
Central Processing Unit produces loading instruction to the output unit, and making the output unit control the ice water host computer is carried out after loading operation,
The CPU determines whether the rate of temperature change of the frozen water temperature, when rate of temperature change sets more than a temperature change
During value, the CPU can produce unloading command to the output unit, and making the output unit control the ice water host computer is carried out
Unloading operation, when rate of temperature change is less than the temperature change setting value, the CPU can produce loading instruction and extremely should
Output unit, making the output unit control the ice water host computer carries out loading operation.
3. the control method of air conditioner energy saving controller according to claim 1, it is characterised in that stationary value was for should on this
Target temperature adds 0.3 DEG C, and the lower stationary value subtracts 0.3 DEG C for the target temperature.
4. the control method of air conditioner energy saving controller according to claim 1, it is characterised in that median was for should on this
Target temperature adds 1 DEG C, and the lower median subtracts 1 DEG C for the target temperature.
5. the control method of air conditioner energy saving controller according to claim 1, it is characterised in that the higher limit is at least big
In 4 DEG C of the target temperature.
6. the control method of air conditioner energy saving controller according to claim 1, it is characterised in that the lower limit is 4 DEG C.
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| CN201410161603.XA CN104279722B (en) | 2013-07-11 | 2014-04-22 | Control method of air conditioner energy saving control device |
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| CN201410161603.XA CN104279722B (en) | 2013-07-11 | 2014-04-22 | Control method of air conditioner energy saving control device |
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| CN108571803B (en) * | 2017-03-07 | 2020-06-30 | 佛山市顺德区顺达电脑厂有限公司 | Ice water main machine control method |
| CN111341078B (en) * | 2020-05-18 | 2020-09-04 | 广东电网有限责任公司惠州供电局 | Reminding device for preventing power distribution equipment from being close to stacked articles |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1793746A (en) * | 2005-12-31 | 2006-06-28 | 东莞市广大制冷有限公司 | Method for automatic regulating and controlling cooling water and frozen water flow of central air conditioning system |
| TWI328723B (en) * | 2006-09-28 | 2010-08-11 | Yung Chung Chang | |
| CN102207322A (en) * | 2010-09-14 | 2011-10-05 | 中华电信股份有限公司 | Method for dynamically adjusting ice water temperature of ice water main machine |
| CN102338441A (en) * | 2010-07-27 | 2012-02-01 | 中华电信股份有限公司 | Method for regulating and controlling freezing ability of fixed-frequency freezing air-conditioning ice-water system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2008232460A (en) * | 2007-03-16 | 2008-10-02 | Tokyo Gas Co Ltd | Absorption chiller/heater and its control method |
| KR20100121961A (en) * | 2009-05-11 | 2010-11-19 | 엘지전자 주식회사 | Air conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1793746A (en) * | 2005-12-31 | 2006-06-28 | 东莞市广大制冷有限公司 | Method for automatic regulating and controlling cooling water and frozen water flow of central air conditioning system |
| TWI328723B (en) * | 2006-09-28 | 2010-08-11 | Yung Chung Chang | |
| CN102338441A (en) * | 2010-07-27 | 2012-02-01 | 中华电信股份有限公司 | Method for regulating and controlling freezing ability of fixed-frequency freezing air-conditioning ice-water system |
| CN102207322A (en) * | 2010-09-14 | 2011-10-05 | 中华电信股份有限公司 | Method for dynamically adjusting ice water temperature of ice water main machine |
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