A kind of energy-conservation coil pipe blower control method that can improve environmental degree of comfort
Technical field
The present invention relates to a kind of control method of coil pipe blower fan, more particularly, relate in particular to a kind of energy-conservation coil pipe blower control method.
Background technology
At present, the control mode of air conditioning terminal blower fan is to adopt low power ac motor, and the gear of this state of motor three kinds of friction speeds commonly used is manually controlled.And the temperature controller of air-conditioning draught fan is to adopt the principle of deciding wind speed, alternating temperature degree to control.Temperature controller is circumscribed with temperature sensor, and when actual temperature value was lower than set temperature value certain amplitude (0.5-1 degree), the control magnetic valve broke off cold water pathway; When actual temperature value was higher than set temperature value certain amplitude (0.5-1 degree), the control magnetic valve was communicated with cold water pathway.There is the defective of two aspects in this traditional control mode: in indoor temperature is in a bigger fluctuating range (the positive and negative 0.5-1.5 degree of set temperature value scope), under this temperature environment, can exert an influence to human comfort; The blower fan long-term work is constant-speed operation under the speed of set position, and blower fan is in no cold air output state when chilled water circuit is broken off, and can cause waste of energy like this.
Summary of the invention
The objective of the invention is to deficiency, the energy-conservation coil pipe blower control method of a kind of stationary temperature, change wind speed is provided to above-mentioned prior art.
Technical scheme of the present invention is achieved in that
A kind of energy-conservation coil pipe blower control method that can improve environmental degree of comfort, it may further comprise the steps:
1) at first import data parameters and action command to microcontroller, and the numerical value that this adjusting panel reception is returned by microcontroller is presented at it on display screen by regulating panel;
2) microcontroller receive to be regulated the data communication and the action command of panel then, according to command request, and the switch on and off of microprocessor controls supply unit, and the input of supply unit is carried out voltage, electric current and electrical power factor detect;
3) then the anti-interference filtration device carries out effective clamper filtering to the peak voltage that exists in the supply unit;
4) power factor correcting receives the power parameter of microcontroller output, and improves this power factor and output to arrangements for speed regulation;
5) warm and humid sensor detects the return air humiture of blower fan and it is transported to microcontroller and compares analysis, again by microcontroller output order control arrangements for speed regulation;
6) arrangements for speed regulation receive each data command of microcontroller, and through the step-less adjustment mode blower motor are carried out rotational speed regulation;
7) last blower motor drives draught fan impeller and makes the mobile absorption refrigeration that carries out of air in the environment.
Said supply unit comprises the power sense circuit module that supplies microcontroller to detect voltage, electric current and power factor (PF) and issues microcontroller by the signal of regulating panel output and confirm that the back realizes the power switch circuit module of its instruction of sending.
Said power sense circuit module is made up of protector FS, resistance R 1, R2, RJ, and protector FS one end connects power firestreak, and the other end connects the end of resistance R 1 and RJ respectively; The other end of resistance R 1 connects first port of microcontroller; The other end of resistance R J connects second port of microcontroller; One end of resistance R 2 connects zero-power line, and the other end connects first port of microcontroller.
Said power switch circuit module is by capacitor C 1, C2, resistance R 3, R4, triode Q1, diode D1; Relay K M1 constitutes; Capacitor C 1 and resistance R 3 are connected between resistance R 1 and the anti-interference filtration device, and capacitor C 2 and resistance R 4 are connected between zero-power line and the anti-interference filtration device; The base stage of triode Q1 connects the 3rd port of microcontroller, and the colelctor electrode of triode Q1 connects the same end of diode Q1 and relay K M1, the grounded emitter of triode; Diode Q1 is connected supply voltage with the other end of relay K M1.
Said relay K M1 also comprises two switches, and a switch in parallel is in the both sides of capacitor C 1 and resistance R 3, and another switch in parallel is in the both sides of capacitor C 2 and resistance R 4.
Said anti-interference filtration device comprises capacitor C 3, C4, C5, C6, transformer T1, T2, transient state suppressing element D2, and capacitor C 3 two ends connect the live wire and the zero line of supply unit; The two ends of transformer T1 are connected capacitor C 3 two ends; Capacitor C 4 one ends connect the end of transformer T1, other end ground connection; Capacitor C 5 one ends connect the other end of transformer T1, and the other end ground connection of capacitor C 5: transformer T2 is connected the two ends of transformer T1; Capacitor C 6 is connected the two ends of transformer T2; Transient state suppressing element D2 is connected the two ends of capacitor C 6.
The present invention adopts microcontroller to handle data such as the electric current of temperature and humidity and the supply unit input of the blower fan return air that warm and humid sensor detects, voltage, power factor (PF); And send precisely control arrangements for speed regulation of instruction; And then control the blower motor variable-speed operation, reach the effect of constant temperature; The thermostatic control mode can improve the temperature comfort level under the refrigerating environment; Power factor (PF) is improved, and can reduce line loss; Control method of the present invention can be practiced thrift a large amount of power consumptions, reduces the operating cost of Fan Equipment.
Description of drawings
Below in conjunction with the embodiment in the accompanying drawing the present invention is done further detailed description, but do not constitute any restriction of the present invention.
Fig. 1 is the fundamental diagram of coil pipe blower control method of the present invention.
Fig. 2 is the internal circuit diagram of supply unit of the present invention.
Fig. 3 is the internal circuit diagram of anti-interference filtration device of the present invention.
The specific embodiment
Consult shown in Figure 1; A kind of energy-conservation coil pipe blower control method that can improve environmental degree of comfort of the present invention needs to adopt array apparatus down: it comprises supply unit, anti-interference filtration device, arrangements for speed regulation, power factor correcting, microcontroller, Temperature Humidity Sensor, blower motor, draught fan impeller and regulates panel.Said adjusting panel connects microcontroller; Controller connects supply unit, power factor correcting, arrangements for speed regulation and Temperature Humidity Sensor respectively; Supply unit connects the anti-interference filtration device; Said arrangements for speed regulation also connect anti-interference filtration device, power factor correcting device and blower motor respectively; Blower motor connects draught fan impeller.
A kind of energy-conservation coil pipe blower control method that can improve environmental degree of comfort of the present invention may further comprise the steps:
1) at first import data parameters and action command to microcontroller, and the numerical value that this adjusting panel reception is returned by microcontroller is presented at it on display screen by regulating panel;
2) microcontroller receives data communication and the action command of regulating panel then; According to command request; The switch on and off of microprocessor controls supply unit, and the inner sensing device of microcontroller carries out voltage, electric current and electrical power factor to the input of supply unit and detects;
3) then the anti-interference filtration device carries out effective clamper filtering to the peak voltage that exists in the supply unit;
4) power factor correcting receives the power parameter of microcontroller output, and this power factor correcting device is made up of condenser for power factor improvement and compensating inductance, can improve this power factor and output to arrangements for speed regulation behind the input circuit;
5) warm and humid sensor adopts high-precision sensor to detect the return air humiture of blower fan and it is transported to microcontroller, and microcontroller compares analysis with the humiture value of return air humiture value and inner setting, again output order control arrangements for speed regulation;
6) arrangements for speed regulation receive each data command of microcontroller, and through the step-less adjustment mode blower motor are carried out rotational speed regulation;
7) last blower motor drives draught fan impeller and makes the mobile absorption refrigeration that carries out of air in the environment.
Consult shown in Figure 2ly, the supply unit among the present invention comprises the power sense circuit module that supplies microcontroller to detect voltage, electric current and power factor (PF) and issues microcontroller by the signal of regulating panel output and confirm that the back realizes the power switch circuit module of its instruction of sending.Be that supply unit is made up of midget relay and resistance capaciting absorpting circuit, the break-make of supply unit receives microprocessor controls.Said power sense circuit module is made up of protector FS, resistance R 1, R2, RJ, and protector FS one end connects power firestreak, and the other end connects the end of resistance R 1 and RJ respectively; The other end of resistance R 1 connects first port of microcontroller; The other end of resistance R J connects second port of microcontroller; One end of resistance R 2 connects zero-power line, and the other end connects first port of microcontroller.Said power switch circuit module is by capacitor C 1, C2, resistance R 3, R4, triode Q1, diode D1; Relay K M1 constitutes; Capacitor C 1 and resistance R 3 are connected between resistance R 1 and the anti-interference filtration device, and capacitor C 2 and resistance R 4 are connected between zero-power line and the anti-interference filtration device; The base stage of triode Q1 connects the 3rd port of microcontroller, and the colelctor electrode of triode Q1 connects the same end of diode Q1 and relay K M1, the grounded emitter of triode; Diode Q1 is connected supply voltage with the other end of relay K M1.Said relay K M1 also comprises two switches, and a switch in parallel is in the both sides of capacitor C 1 and resistance R 3, and another switch in parallel is in the both sides of capacitor C 2 and resistance R 4.
The operation principle of power sense circuit module of the present invention is following: alternating current flows into through protector FS from the live wire of supply unit, and this moment, live wire and the zero line side with supply unit inserted in the microcontroller, for the The whole control device provides power supply.Live wire and two proportion resistor of zero line side serial connection are carried out sampled measurements to supply voltage; The power firestreak end can produce pressure drop after flowing through resistance R J; The operational amplifier that the value (V=L-Lin) of sampling pressure drop is sent into microcontroller carries out computing, and the voltage of above sampled measurements, current value are averaged and just be the voltage of supply unit, current value.The maximum of recording voltage, electric current when high-speed sampling, the time coordinate difference of the two is exactly a phase difference, tries to achieve the power factor value of circuit according to phase difference.
The operation principle of power switch circuit module of the present invention is following: the enabling signal by regulating panel output is passed to microcontroller; Sending instruction after microcontroller is confirmed draws the Pout end and is high level; Triode Q1 conducting this moment; After the relay K M1 energising, two just adhesives of switch, the power turn-ons of The whole control device like this of KM1.
Consult shown in Figure 3ly, the anti-interference filtration device is made up of EMC (Electro Magnetic Compatibility) and peak voltage clamper filter circuit, can realize trouble-free operation and for the effective clamper filtering of the peak voltage that exists in the power circuit.Said anti-interference filtration device comprises capacitor C 3, C4, C5, C6, transformer T1, T2, transient state suppressing element D2, and capacitor C 3 two ends connect the live wire and the zero line of supply unit; The two ends of transformer T1 are connected capacitor C 3 two ends; Capacitor C 4 one ends connect the end of transformer T1, other end ground connection; Capacitor C 5 one ends connect the other end of transformer T1, and the other end ground connection of capacitor C 5: transformer T2 is connected the two ends of transformer T1; Capacitor C 6 is connected the two ends of transformer T2; Transient state suppressing element D2 is connected the two ends of capacitor C 6.
The operation principle of anti-interference filtration device of the present invention is following: adopt the second-order filter network mode, the input power supply is carried out the electromagnetism anti-interference process, transient state suppressing element D2 is the interference of filtering peak voltage generation effectively.
The thermostatic control mode that the present invention adopts more accurately, fluctuating range is little can improve the temperature comfort level under the refrigerating environment; Microcontroller of the present invention can directly precisely be controlled arrangements for speed regulation, and the dynamo-electric machine of the high-quality power supply air feed of arrangements for speed regulation output is used; Merit is counted factor and is improved, and can make line loss less; Blower motor operate power after the speed governing descends greatly, compares constant speed blower fan fractional energy savings and exceeds 30-70%, and adopt the control strategy of constant temperature to make the endothermic effect of coil pipe blower fan identical with traditional control system, does not influence refrigerating function fully; Control method functional integration of the present invention is high, and intelligent level is high, has general communication interface to realize automatic control more easily.