CN104279722A - Air conditioner energy saving control device and control method for same - Google Patents
Air conditioner energy saving control device and control method for same Download PDFInfo
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- CN104279722A CN104279722A CN201410161603.XA CN201410161603A CN104279722A CN 104279722 A CN104279722 A CN 104279722A CN 201410161603 A CN201410161603 A CN 201410161603A CN 104279722 A CN104279722 A CN 104279722A
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- temperature
- cpu
- output unit
- host computer
- ice 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
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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
- F24F2110/00—Control inputs relating to air properties
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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
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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 about a kind of control device, particularly about a kind of air conditioner energy saving controller and control method thereof.
Background technology
Aircondition is for controlling the equipment of indoor temperature in the modern life, and such as, temperature for controlling in family, in office or factory building, particularly in large space, the control of aircondition all the more seems important.
For ice water host computer, its function mode is first to have the air-conditioning box that a frozen water presetting leaving water temperature is sent to indoor, after frozen water and room air carry out heat exchange, temperature can improve, and then can carry out the action cooled again, sends back ice water host computer again after obtaining the cooling water of lowering the temperature.
But the thermoregulator accuracy of ice water host computer is Celsius ± 1 DEG C at present, cannot remake and control more accurately, usually can cause the waste of electric power, when environmental consciousness is surging now, be difficult to the target reaching energy-saving and emission-reduction.
Therefore, need can not the problem that regulates of more accurate control temperature to propose a solution to above-mentioned.
Summary of the invention
One of the present invention object is to provide a kind of air conditioner energy saving controller and control method thereof, and it can regulate more accurately to the frozen water temperature of ice water host computer.
For achieving the above object, according to the air conditioner energy saving controller of the present invention for controlling an ice water host computer, this aircondition comprises: a CPU, stores a target temperature, and this target temperature is the temperature value that one of this ice water host computer frozen water temperature finally need reach; One temperature detecting unit, is electrically coupled to this ice water host computer and this CPU; And an output unit, be electrically coupled to this ice water host computer and this CPU.This temperature detecting unit is detected this frozen water temperature of this ice water host computer and is transmitted this frozen water temperature to this CPU.When this frozen water temperature is greater than a higher limit, this CPU generation load instructions or unloading command, to this output unit, make this output unit control this ice water host computer and carry out load operation or unloading operation.When this frozen water temperature is less than this higher limit and is greater than median on, this CPU produces load instructions to this output unit, makes this output unit control this ice water host computer and carries out load operation.When this frozen water temperature is less than median on this and is greater than stationary value on, this CPU calculates the rate of temperature change of this frozen water temperature, and producing load instructions or unloading command or hold instruction to this output unit according to the rate of temperature change of this frozen water temperature, this frozen water temperature making this output unit control this ice water host computer operates towards this target temperature.When this frozen water temperature is less than stationary value on this and is greater than this target temperature, this CPU controls this ice water host computer through this output unit and does not make load operation or unloading operation.This frozen water temperature be less than this target temperature and be greater than stationary value time, this CPU controls this ice water host computer through this output unit and does not make load operation or unloading operation.This frozen water temperature be less than this lower stationary value and be greater than median time, this CPU calculates the rate of temperature change of this frozen water temperature, and producing load instructions or hold instruction or unloading command to this output unit according to the rate of temperature change of this frozen water temperature, this frozen water temperature making this output unit control this ice water host computer operates towards this target temperature.When this frozen water temperature is less than this lower median and is greater than a lower limit, this CPU produces unloading command and is sent to this output unit, makes this output unit control this ice water host computer and carries out unloading operation.When this frozen water temperature is less than this lower limit, this CPU produces stop command and is also sent to this output unit, makes this output unit control this ice water host computer and carries out urgency and stop operating.
In the air conditioner energy saving controller of the present invention, when this frozen water temperature is greater than this higher limit, this CPU produces load instructions to this output unit, this output unit is controlled after this ice water host computer carries out load operation, this CPU calculates the rate of temperature change of this frozen water temperature further, when rate of temperature change is greater than a variations in temperature setting value, this CPU can produce unloading command to this output unit, make this output unit control this ice water host computer and carry out unloading operation, when rate of temperature change is less than this variations in temperature setting value, this CPU can produce load instructions to this output unit, make this output unit control this ice water host computer and carry out load operation.
In the air conditioner energy saving controller of the present invention, on this, stationary value adds 0.3 DEG C for this target temperature, and this lower stationary value subtracts 0.3 DEG C for this target temperature.
In the air conditioner energy saving controller of the present invention, on this, median adds 1 DEG C for this target temperature, and this lower median subtracts 1 DEG C for this target temperature.
In the air conditioner energy saving controller of the present invention, this higher limit is at least greater than this target temperature 4 DEG C.
In the air conditioner energy saving controller of the present invention, this lower limit is 4 DEG C.
In the air conditioner energy saving controller of the present invention, comprise an input block further and be electrically coupled to this ice water host computer and this CPU, produce a warning escape signal when this ice water host computer breaks down escape and be sent to this input block, this warning escape signal is sent to this CPU by this input block again.
In the air conditioner energy saving controller of the present invention, comprise an electric detecting unit further and be electrically coupled to this ice water host computer and this CPU, this electric detecting unit is detected the operation voltage of this ice water host computer and revolution electric current and is sent to this CPU.
In the air conditioner energy saving controller of the present invention, comprise a communication unit further and be electrically coupled to an ammeter and this CPU, this communication unit transmits one of this ice water host computer electricity consumption number of degrees for receiving this ammeter, and these electricity consumption number of degrees are sent to this CPU.
For achieving the above object, according to the control method of the air conditioner energy saving controller of the present invention for controlling an ice water host computer, this air conditioner energy saving controller comprises a CPU, a temperature detecting unit and an output unit, this CPU stores a target temperature, this target temperature is the temperature value that one of this ice water host computer frozen water temperature finally need reach, and the control method of this air conditioner energy saving controller comprises:
A. start;
B. this temperature detecting unit is detected this frozen water temperature of this ice water host computer and is transmitted this frozen water temperature to this CPU;
C. this CPU judges whether this frozen water temperature is greater than a higher limit, if so, performs step K, if not, performs step D;
D. this CPU judges whether this frozen water temperature is less than this higher limit and is greater than median on, if so, performs step L, if not, performs step e;
E. this CPU judges whether this frozen water temperature is less than median on this and is greater than stationary value on, if so, performs step M, if not, performs step F;
F. this CPU judges whether this frozen water temperature is less than stationary value on this and is greater than this target temperature, if so, performs step N, if not, performs step G;
G. this CPU judges whether this frozen water temperature is less than this target temperature and is greater than stationary value, if so, performs step O, if not, performs step H;
H. this CPU judges whether this frozen water temperature is less than this lower stationary value and is greater than median, if so, performs step P, if not, performs step I;
I. this CPU judges whether this frozen water temperature is less than this lower median and is greater than a lower limit, if so, performs step Q, if not, performs step J;
J. this CPU judges whether this frozen water temperature is less than this lower limit, if so, performs step R, if not, performs step S;
K. this CPU produces load instructions or unloading command to this output unit, makes this output unit control this ice water host computer and carries out load operation or unloading operation and perform step S;
L. this CPU produces load instructions to this output unit, makes this output unit control this ice water host computer and carries out load operation and perform step S;
M. this CPU calculates the rate of temperature change of this frozen water temperature, and producing load instructions or unloading command or hold instruction to this output unit according to the rate of temperature change of this frozen water temperature, this frozen water temperature making this output unit control this ice water host computer operates towards this target temperature and performs step S;
N. this CPU controls this ice water host computer through this output unit and does not make load operation or unloading operation and perform step S;
O. this CPU controls this ice water host computer through this output unit and does not make load operation or unloading operation and perform step S;
P. this CPU calculates the rate of temperature change of this frozen water temperature, and producing load instructions or hold instruction or unloading command to this output unit according to the rate of temperature change of this frozen water temperature, this frozen water temperature making this output unit control this ice water host computer operates towards this target temperature and performs step S;
Q. this CPU produces unloading command and is sent to this output unit, makes this output unit control this ice water host computer and carries out unloading operation and perform step S;
R. this CPU produces stop command be sent to this output unit, makes this output unit control this ice water host computer and carries out urgency and stop operating and perform 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, this CPU produces load instructions to this output unit, this output unit is controlled after this ice water host computer carries out load operation, this CPU judges the rate of temperature change of this frozen water temperature further, when rate of temperature change is greater than a variations in temperature setting value, this CPU can produce unloading command to this output unit, make this output unit control this ice water host computer and carry out unloading operation, when rate of temperature change is less than this variations in temperature setting value, this CPU can produce load instructions to this output unit, make this output unit control this ice water host computer and carry out load operation.
In the control method of the air conditioner energy saving controller of the present invention, on this, stationary value adds 0.3 DEG C for this target temperature, and this lower stationary value subtracts 0.3 DEG C for this target temperature.
In the control method of the air conditioner energy saving controller of the present invention, on this, median adds 1 DEG C for this target temperature, and this lower median subtracts 1 DEG C for this target temperature.
In the control method of the air conditioner energy saving controller of the present invention, this higher limit is at least greater than this target temperature 4 DEG C.
In the control method of the air conditioner energy saving controller of the present invention, this lower limit is 4 DEG C.
The air conditioner energy saving controller of the present invention and the accuracy of control method control temperature better, make ice water host computer with the operation of lower revolution electric current, and then reach the target of energy-saving and emission-reduction and temperature precise control.
Accompanying drawing explanation
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 that Fig. 4 judges after illustrating the step S400 of Fig. 3 further.
Detailed description of the invention
The explanation of following embodiment is graphic with reference to what add, can in order to the specific embodiment implemented in order to illustrate the present invention.
Refer to Fig. 1, it illustrates the air conditioner energy saving controller 1 according to one embodiment of the invention.
Air conditioner energy saving controller 1 is for controlling an ice water host computer 3, and that is, air conditioner energy saving controller 1 is electrically coupled to ice water host computer 3.
The air conditioner energy saving controller 1 of the present invention comprises a CPU (Central Processing Unit; CPU) the electric detecting unit 18 of 10, one temperature detecting unit 12, output unit 14, input block 16, one and a communication unit 20.
Input block 16 is electrically coupled to ice water host computer 3 and CPU 10, and when ice water host computer 3 breaks down escape, can produce a warning escape signal and be sent to input block 16, this warning escape signal is sent to CPU 10 by input block 16 again.In an embodiment, input block 16 is for example and without limitation to digital input unit.
Electric detecting unit 18 is electrically coupled to ice water host computer 3 and CPU 10, and electric detecting unit 18 is for detecting the operation voltage of ice water host computer 3 and revolution electric current and being sent to CPU 10.In an embodiment, electric detecting unit 18 is for example and without limitation to analogue input unit.
Temperature detecting unit 12 is electrically coupled to ice water host computer 3 and CPU 10, for detecting that one of ice water host computer 3 frozen water enters coolant-temperature gage, a frozen water leaving water temperature, a cooling water enter coolant-temperature gage and a cooling water leaving water temperature be sent to CPU 10.In an embodiment, temperature detecting unit 12 is for example and without limitation to thermistor.
Communication unit 20 is electrically coupled to an ammeter 5 and CPU 10, for receive ammeter 5 transmit revolution electric current and the voltage of ice water host computer 3, and revolution electric current and voltage are sent to CPU 10.
Output unit 14 is electrically coupled to ice water host computer 3 and CPU 10, the various information that CPU 10 transmits according to temperature detecting unit 12, input block 16, electrically detecting unit 18 and communication unit 20, through output unit 14 control ice water host computer 3 startup, stop and various operation.In an embodiment, output unit 14 is for example and without limitation to digital output feature.
The air conditioner energy saving controller 1 of the present invention can improve the accuracy of the frozen water temperature (can enter coolant-temperature gage for frozen water leaving water temperature or frozen water) of ice water host computer 3, ice water host computer 3 is operated with lower revolution electric current, reach the object of energy-saving and emission-reduction, the controlling mechanism of air conditioner energy saving controller 1 below will be described in detail in detail.
Please refer to Fig. 1 and Fig. 2, Fig. 2 illustrates the controlling curve of the air conditioner energy saving controller according to the present invention, more particularly, this controlling curve is CPU 10 controls the frozen water leaving water temperature of ice water host computer 3 change curve through output unit 14, wherein X-axis is the time, and Y-axis is the current frozen water leaving water temperature of ice water host computer 3.The preferred curve that the controlling curve of Fig. 2 obtains after continuous test for the present invention.
CPU 10 stores the frozen water leaving water temperature that an ice water host computer finally need reach, its can according to demand by user through User's Interface (User Interface; UI) set, for the controlling curve of Fig. 2, the frozen water water outlet temperature setting that ice water host computer finally need reach is 7 DEG C Celsius.
The current frozen water leaving water temperature that temperature detecting unit 12 will detect ice water host computer 3 is sent to CPU 10, using the foundation as judgement and control.For ease of illustrating and distinguishing, below the temperature value that the frozen water leaving water temperature of ice water host computer 3 finally need reach is called target temperature, temperature detecting unit 12 detect ice water host computer 3 current frozen water leaving water temperature be called current temperature.
After CPU 10 receives the current temperature that temperature detecting unit 12 transmits, produce a control instruction according to the size of current temperature and be sent to output unit 14, carrying out temperature adjustment by output unit 14 according to the frozen water leaving water temperature (i.e. current temperature) of control instruction to ice water host computer 3.
When CPU 10 judges that current temperature is greater than a higher limit, that is when being positioned at first loading zone of Fig. 2, represent current temperature and target temperature difference large, CPU 10 produces load instructions to output unit 14, make output unit 14 control ice water host computer 3 and carry out load operation, to turn cold the control of matchmaker to determine rotating speed, described load operation is when specifying rotating speed, increases refrigerant and reaches load operation.In addition, in a preferred embodiment, when current temperature is positioned at the first loading zone, for avoiding the excessive velocities of load operation, CPU 10 is producing load instructions to output unit 14, output unit 14 is controlled after ice water host computer 3 carries out load operation, the rate of temperature change (that is slope of accounting temperature change) of current temperature can be judged further, when rate of temperature change is greater than a variations in temperature setting value, CPU 10 can produce a unloading command to output unit 14, make output unit 14 control ice water host computer 3 and carry out unloading operation, use and avoid loading too fast problem generation, that is, avoid entering the second loading zone with too fast loading velocity, but wish to enter the second loading zone with comparatively gentle loading velocity from the first loading zone, to control preferably.
In summary, when CPU 10 first time judges that current temperature is greater than higher limit, load instructions can be produced to output unit 14, make output unit 14 control ice water host computer 3 and carry out load operation, when ice water host computer 3 carries out load operation, CPU 10 judges that current temperature is greater than higher limit again, for avoiding the excessive velocities of load operation, CPU 10 can judge the rate of temperature change (that is slope of accounting temperature change) of current temperature further, when rate of temperature change is greater than variations in temperature setting value, CPU 10 can produce unloading command to output unit 14, make output unit 14 control ice water host computer 3 and carry out unloading operation, use and avoid loading too fast problem generation.On the contrary, when rate of temperature change is less than variations in temperature setting value, CPU 10 can produce load instructions to output unit 14, makes output unit 14 control ice water host computer 3 and carries out load operation again.So when the first loading zone, CPU 10 may produce load instructions, also may produce unloading command.
When CPU 10 judges that current temperature is less than higher limit and is greater than median on, that is when temperature is positioned at second loading zone of Fig. 2 at present, represent current temperature and target temperature difference less, CPU 10 produces load instructions to output unit 14, makes output unit 14 control ice water host computer 3 and carries out load operation.When being noted that current temperature is positioned at the second loading zone, CPU 10 only produces load instructions, and can not calculate and judge whether rate of temperature change is greater than variations in temperature setting value, that is does not consider to load too fast problem.
When CPU 10 judges that current temperature is less than upper median and is greater than stationary value on, that is when temperature is positioned at confusion region on Fig. 2 at present, represent current temperature and target temperature difference less, the rate of temperature change (that is slope of accounting temperature change) that CPU 10 can calculate current temperature is the rate of rise, descending slope or maintenance slope, and produce load or unload or hold instruction (that is selecting load instructions or unloading command or hold instruction) to output unit 14 according to Different Slope situation, the trend making output unit 14 control the current temperature head for target temperature of ice water host computer 3 operates.
When CPU 10 judges that current temperature is less than upper stationary value and is greater than target temperature, that is when temperature is positioned at stable region on Fig. 2 at present, represent that the difference of current temperature and target temperature is within the permissible range set, CPU 10 does not produce load or unload instruction, that is controls ice water host computer 3 through output unit 14 and do not make load operation or unloading operation.
When CPU 10 judges that current temperature is less than target temperature and is greater than lower stationary value, that is when temperature is positioned at stable region under Fig. 2 at present, identical with upper stable region, represent that the difference of current temperature and target temperature is within the permissible range set, CPU 10 does not produce load or unload instruction, that is controls ice water host computer 3 through output unit 14 and do not make load operation or unloading operation.
When CPU 10 judges that current temperature is less than lower stationary value and is greater than lower median, that is when temperature is positioned at confusion region under Fig. 2 at present, identical with upper confusion region, the rate of temperature change (that is slope of accounting temperature change) that CPU 10 can calculate current temperature is the rate of rise, descending slope or maintenance slope, and according to Different Slope situation produce load or keep or unloading command (that is selecting load instructions or hold instruction or unloading command) to output unit 14, the trend making output unit 14 control the current temperature head for target temperature of ice water host computer 3 operates.
When CPU 10 judges that current temperature is less than lower median and is greater than a lower limit, that is when temperature is positioned at the unload zone of Fig. 2 at present, CPU 10 produces unloading command to output unit 14, makes output unit 14 control ice water host computer 3 and carries out unloading operation.
When CPU 10 judges that current temperature is less than lower limit, that is when at present temperature is positioned at Tu2Zhi Jiting district, CPU 10 produces stop command to output unit 14, makes output unit 14 control ice water host computer 3 and carries out urgency and stop operating.
Be noted that above-mentioned load operation, unloading operation and suddenly stop being operating as known by 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 set through User's Interface by user according to demand, for the controlling curve of Fig. 2, target temperature is set as 7 DEG C Celsius, upper stationary value and lower stationary value be set as respectively target temperature ± 0.3 DEG C, upper median and lower median be set as respectively target temperature ± 1 DEG C, higher limit is set as at least being greater than target temperature 4 DEG C, lower limit is better is set as 4 DEG C, lower limit is better when being set as that the reason of 4 DEG C is the temperature of water lower than 4 DEG C, its volume can expand, therefore must control ice water host computer carry out urgency stop operation, volumetric expansion is avoided to cause the problem of pipe breakage to occur by this.In addition, the preferred values that the target temperature of Fig. 2, higher limit, upper median, upper stationary value, lower stationary value, lower median and lower limit obtain after continuous test for the present invention, that is, target temperature, higher limit, upper median, upper stationary value, lower stationary value, lower median and lower limit are not only simple selection or simply test and obtain, but coordinate different operations (as load operation, removal operation, keeping operating and suddenly stop to operate) to reach best Energy Saving Control effect according to the current temperature of detecting.
In addition, be noted that, Fig. 2 display be the controlling curve of frozen water leaving water temperature, the frozen water that the CPU 10 of the present invention also can control ice water host computer 3 through output unit 14 enters coolant-temperature gage, that is store the change curve that frozen water enters coolant-temperature gage in advance, and target temperature is set as the temperature value that the frozen water of ice water host computer 3 enters coolant-temperature gage and finally need reach, after entering coolant-temperature gage by the current frozen water detecting ice water host computer 3, carry out the control similar with Fig. 2, reach the Energy Saving Control effect of the best by this.
Refer to Fig. 1 to Fig. 3, Fig. 3 illustrates the control method of the air conditioner energy saving controller 1 of Fig. 1.
Step S300, starts.
Step S310, temperature detecting unit 12 is detected the frozen water leaving water temperature of ice water host computer 3 and is transmitted frozen water leaving water temperature to CPU 10.
Step S320, CPU 10 judges whether frozen water leaving water temperature is greater than a higher limit, if so, performs step S400, if not, performs step S330.
Step S330, CPU 10 judges whether frozen water leaving water temperature is less than higher limit and is greater than median on, if so, performs step S410, if not, performs step S340.
Step S340, CPU 10 judges whether frozen water leaving water temperature is less than median and is greater than stationary value on, if so, performs step S420, if not, performs step S350.
Step S350, CPU 10 judges whether frozen water leaving water temperature is less than stationary value and is greater than target temperature, if so, performs step S430, if not, performs step S360.
Step S360, CPU 10 judges whether frozen water leaving water temperature is less than target temperature and is greater than stationary value, if so, performs step S440, if not, performs step S370.
Step S370, CPU 10 judges whether frozen water leaving water temperature is less than lower stationary value and is greater than median, if so, performs step S450, if not, performs step S380.
Step S380, CPU 10 judges whether frozen water leaving water temperature is less than lower median and is greater than a lower limit, if so, performs step S460, if not, performs step S390.
Step S390, CPU 10 judges whether frozen water leaving water temperature is less than lower limit, if so, performs step S470, if not, performs step S480.
Step S400, CPU 10 produces load instructions or unloading command to output unit 14, makes output unit 14 control ice water host computer 3 and carries out load operation or unloading operation and perform step S480.
In addition, Fig. 4 is referred to, the flow chart that Fig. 4 judges after illustrating the step S400 of Fig. 3 further.In Fig. 4, comprise after step S400:
Step S402, CPU 10 calculates the rate of temperature change of frozen water leaving water temperature further and when judging whether this rate of temperature change is greater than a variations in temperature setting value, if so, performs step S404, if not, performs step S406.
Step S404, CPU 10 can produce unloading command to output unit 14, makes output unit 14 control ice water host computer 3 and carries out unloading operation and perform step S480.
Step S406, CPU 10 can produce load instructions to output unit 14, makes output unit 14 control ice water host computer 3 and carries out load operation and perform step S480.
The object of step S402 and S404 is to avoid with too fast loading velocity to enter second loading zone of Fig. 2, but wishes to enter the second loading zone from the first loading zone, to control preferably with comparatively gentle loading velocity.
Referring again to Fig. 3, step S410, CPU 10 produces load instructions to output unit 14, makes output unit 14 control ice water host computer 3 and carries out load operation and perform step S480.
Step S420, CPU 10 calculates the rate of temperature change of frozen water leaving water temperature, and produce load instructions or unloading command or hold instruction to output unit 14 according to the rate of temperature change of frozen water leaving water temperature, make output unit 14 control the frozen water leaving water temperature head for target temperature operation of ice water host computer 3 and perform step S480.
Step S430, CPU 10 controls ice water host computer 3 through output unit 14 and does not make load operation or unloading operation and perform step S480.
Step S440, CPU 10 controls ice water host computer 3 through output unit 14 and does not make load operation or unloading operation and perform step S480.
Step S450, CPU 10 calculates the rate of temperature change of frozen water leaving water temperature, and produce load instructions or hold instruction or unloading command to output unit 14 according to the rate of temperature change of frozen water leaving water temperature, make output unit 14 control the frozen water leaving water temperature head for target temperature operation of ice water host computer 3 and perform step S480.
Step S460, CPU 10 produces unloading command and is sent to output unit 14, makes output unit 14 control ice water host computer 3 and carries out unloading operation and perform step S480.
Step S470, CPU 10 produces stop command and is sent to output unit 14, makes output unit 14 control ice water host computer 3 and carries out urgency and stop operating and perform step S480.
Step S480, terminates.
Be noted that after step S480 terminates, the control method of the air conditioner energy saving controller 1 of the present invention can repeat from step S300 again, that is continues the frozen water leaving water temperature of detecting ice water host computer 3 and do different control according to frozen water leaving water temperature.
In addition, said method is the control to frozen water leaving water temperature, in another embodiment, the frozen water that CPU 10 also can control ice water host computer 3 through output unit 14 enters coolant-temperature gage, that is store the change curve that frozen water enters coolant-temperature gage in advance, and target temperature is set as the temperature value that the frozen water of ice water host computer 3 enters coolant-temperature gage and finally need reach, after entering coolant-temperature gage by the current frozen water detecting ice water host computer 3, carry out the control similar with Fig. 2, reach the Energy Saving Control effect of the best by this.
In the control method of air conditioner energy saving controller 1 of the present invention, upper stationary value and lower stationary value be preferably be set as respectively target temperature ± 0.3 DEG C, upper median and lower median be preferably be set as respectively target temperature ± 1 DEG C, higher limit is preferably and is set as at least being greater than target temperature 4 DEG C, lower limit is better is set as 4 DEG C, lower limit is better when being set as that the reason of 4 DEG C is the temperature of water lower than 4 DEG C, its volume can expand, therefore must control ice water host computer carry out urgency stop operation, avoid volumetric expansion to cause the problem of pipe breakage to occur by this.
Existing air conditioner energy saving controller only can have the capacity regulating of segmentation to ice water host computer, such as 33%, 66%, 99% syllogic adjustment or 25%, 50%, 75%, 100% four-part form regulates, the accuracy of control temperature is poor, the air conditioner energy saving controller 1 of the present invention and control method thereof can not only carry out the capacity regulating of above-mentioned syllogic and four-part form by the application of controlling curve to ice water host computer, and the capacity regulating of stepless can be carried out further, that is can by the higher limit of setting Fig. 2, upper median, upper stationary value, lower stationary value, the stepless that lower median and lower limit are reached from 25% to 100% regulates, the accuracy of control temperature is better, ice water host computer 3 is operated with lower revolution electric current, and then reach the target of energy-saving and emission-reduction and temperature precise control.
In sum; although the present invention discloses as above with preferred embodiment; but above preferred embodiment is also not used to limit the present invention; those of ordinary skill in the art; without departing from the spirit and scope of the present invention; all can do various change and retouching, the scope that therefore protection scope of the present invention defines with claim is as the criterion.
Claims (15)
1. an air conditioner energy saving controller, for controlling an ice water host computer, is characterized in that, this air conditioner energy saving controller comprises:
One CPU, stores a target temperature, and this target temperature is the temperature value that one of this ice water host computer frozen water temperature finally need reach;
One temperature detecting unit, is electrically coupled to this ice water host computer and this CPU; And
One output unit, is electrically coupled to this ice water host computer and this CPU,
This temperature detecting unit is detected this frozen water temperature of this ice water host computer and is transmitted this frozen water temperature to this CPU,
When this frozen water temperature is greater than a higher limit, this CPU generation load instructions or unloading command, to this output unit, make this output unit control this ice water host computer and carry out load operation or unloading operation,
When this frozen water temperature is less than this higher limit and is greater than median on, this CPU produces load instructions to this output unit, makes this output unit control this ice water host computer and carries out load operation,
When this frozen water temperature is less than median on this and is greater than stationary value on, this CPU calculates the rate of temperature change of this frozen water temperature, and produce load instructions or unloading command or hold instruction to this output unit according to the rate of temperature change of this frozen water temperature, this frozen water temperature making this output unit control this ice water host computer operates towards this target temperature
When this frozen water temperature is less than stationary value on this and is greater than this target temperature, this CPU controls this ice water host computer through this output unit and does not make load operation or unloading operation,
This frozen water temperature be less than this target temperature and be greater than stationary value time, this CPU controls this ice water host computer through this output unit and does not make load operation or unloading operation,
This frozen water temperature be less than this lower stationary value and be greater than median time, this CPU calculates the rate of temperature change of this frozen water temperature, and produce load instructions or hold instruction or unloading command to this output unit according to the rate of temperature change of this frozen water temperature, this frozen water temperature making this output unit control this ice water host computer operates towards this target temperature
When this frozen water temperature is less than this lower median and is greater than a lower limit, this CPU produces unloading command and is sent to this output unit, makes this output unit control this ice water host computer and carries out unloading operation,
When this frozen water temperature is less than this lower limit, this CPU produces stop command and is also sent to this output unit, makes this output unit control this ice water host computer and carries out urgency and stop operating.
2. air conditioner energy saving controller according to claim 1, it is characterized in that, when this frozen water temperature is greater than this higher limit, this CPU produces load instructions to this output unit, this output unit is controlled after this ice water host computer carries out load operation, this CPU judges the rate of temperature change of this frozen water temperature further, when rate of temperature change is greater than a variations in temperature setting value, this CPU can produce unloading command to this output unit, make this output unit control this ice water host computer and carry out unloading operation, when rate of temperature change is less than this variations in temperature setting value, this CPU can produce load instructions to this output unit, make this output unit control this ice water host computer and carry out load operation.
3. air conditioner energy saving controller according to claim 1, is characterized in that, on this, stationary value adds 0.3 DEG C for this target temperature, and this lower stationary value subtracts 0.3 DEG C for this target temperature.
4. air conditioner energy saving controller according to claim 1, is characterized in that, on this, median adds 1 DEG C for this target temperature, and this lower median subtracts 1 DEG C for this target temperature.
5. air conditioner energy saving controller according to claim 1, is characterized in that, this higher limit is at least greater than this target temperature 4 DEG C.
6. air conditioner energy saving controller according to claim 1, is characterized in that, this lower limit is 4 DEG C.
7. air conditioner energy saving controller according to claim 1, it is characterized in that, comprise an input block further and be electrically coupled to this ice water host computer and this CPU, produce a warning escape signal when this ice water host computer breaks down escape and be sent to this input block, this warning escape signal is sent to this CPU by this input block again.
8. air conditioner energy saving controller according to claim 1, it is characterized in that, comprise an electric detecting unit further and be electrically coupled to this ice water host computer and this CPU, this electric detecting unit is detected one of this ice water host computer operation voltage and a revolution electric current and is sent to this CPU.
9. air conditioner energy saving controller according to claim 1, it is characterized in that, comprise a communication unit further and be electrically coupled to an ammeter and this CPU, this communication unit receives this ammeter and transmits one of this ice water host computer electricity consumption number of degrees, and these electricity consumption number of degrees are sent to this CPU.
10. the control method of an air conditioner energy saving controller, for controlling an ice water host computer, this air conditioner energy saving controller comprises a CPU, a temperature detecting unit and an output unit, it is characterized in that, this CPU stores a target temperature, this target temperature is the temperature value that one of this ice water host computer frozen water temperature finally need reach, and the control method of this air conditioner energy saving controller comprises:
A. start;
B. this temperature detecting unit is detected this frozen water temperature of this ice water host computer and is transmitted this frozen water temperature to this CPU;
C. this CPU judges whether this frozen water temperature is greater than a higher limit, if so, performs step K, if not, performs step D;
D. this CPU judges whether this frozen water temperature is less than this higher limit and is greater than median on, if so, performs step L, if not, performs step e;
E. this CPU judges whether this frozen water temperature is less than median on this and is greater than stationary value on, if so, performs step M, if not, performs step F;
F. this CPU judges whether this frozen water temperature is less than stationary value on this and is greater than this target temperature, if so, performs step N, if not, performs step G;
G. this CPU judges whether this frozen water temperature is less than this target temperature and is greater than stationary value, if so, performs step O, if not, performs step H;
H. this CPU judges whether this frozen water temperature is less than this lower stationary value and is greater than median, if so, performs step P, if not, performs step I;
I. this CPU judges whether this frozen water temperature is less than this lower median and is greater than a lower limit, if so, performs step Q, if not, performs step J;
J. this CPU judges whether this frozen water temperature is less than this lower limit, if so, performs step R, if not, performs step S;
K. this CPU produces load instructions or unloading command to this output unit, makes this output unit control this ice water host computer and carries out load operation or unloading operation and perform step S;
L. this CPU produces load instructions to this output unit, makes this output unit control this ice water host computer and carries out load operation and perform step S;
M. this CPU calculates the rate of temperature change of this frozen water temperature, and producing load instructions or unloading command or hold instruction to this output unit according to the rate of temperature change of this frozen water temperature, this frozen water temperature making this output unit control this ice water host computer operates towards this target temperature and performs step S;
N. this CPU controls this ice water host computer through this output unit and does not make load operation or unloading operation and perform step S;
O. this CPU controls this ice water host computer through this output unit and does not make load operation or unloading operation and perform step S;
P. this CPU calculates the rate of temperature change of this frozen water temperature, and producing load instructions or hold instruction or unloading command to this output unit according to the rate of temperature change of this frozen water temperature, this frozen water temperature making this output unit control this ice water host computer operates towards this target temperature and performs step S;
Q. this CPU produces unloading command and is sent to this output unit, makes this output unit control this ice water host computer and carries out unloading operation and perform step S;
R. this CPU produces stop command be sent to this output unit, makes this output unit control this ice water host computer and carries out urgency and stop operating and perform step S; And
S. terminate.
The control method of 11. air conditioner energy saving controllers according to claim 10, it is characterized in that, in step K, this CPU produces load instructions to this output unit, this output unit is controlled after this ice water host computer carries out load operation, this CPU judges the rate of temperature change of this frozen water temperature further, when rate of temperature change is greater than a variations in temperature setting value, this CPU can produce unloading command to this output unit, make this output unit control this ice water host computer and carry out unloading operation, when rate of temperature change is less than this variations in temperature setting value, this CPU can produce load instructions to this output unit, make this output unit control this ice water host computer and carry out load operation.
The control method of 12. air conditioner energy saving controllers according to claim 10, is characterized in that, on this, stationary value adds 0.3 DEG C for this target temperature, and this lower stationary value subtracts 0.3 DEG C for this target temperature.
The control method of 13. air conditioner energy saving controllers according to claim 10, is characterized in that, on this, median adds 1 DEG C for this target temperature, and this lower median subtracts 1 DEG C for this target temperature.
The control method of 14. air conditioner energy saving controllers according to claim 10, is characterized in that, this higher limit is at least greater than this target temperature 4 DEG C.
The control method of 15. air conditioner energy saving controllers according to claim 10, is characterized in that, this 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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| CN104279722B (en) | 2017-04-12 |
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