CN105824342B - A kind of agricultural greenhouse environmental Kuznets Curves circuit using industrial exhaust heat - Google Patents
A kind of agricultural greenhouse environmental Kuznets Curves circuit using industrial exhaust heat Download PDFInfo
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- CN105824342B CN105824342B CN201610350990.0A CN201610350990A CN105824342B CN 105824342 B CN105824342 B CN 105824342B CN 201610350990 A CN201610350990 A CN 201610350990A CN 105824342 B CN105824342 B CN 105824342B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
Abstract
The present invention heats after providing the low-grade industrial afterheat power generation after cogeneration is utilized for greenhouse, and cold water is for the cooling of greenhouse and a kind of saving energy, the safe and reliable agricultural greenhouse environmental Kuznets Curves circuit using industrial exhaust heat of humidification.Its scheme is, 1 pin and 2 pins of the first circuit interface J1 is connected to the first humistor and the second humistor, 5 pins and 4 pins of first circuit interface J1 are connected to hot-water line triple valve and cold water pipe triple valve, and 6 pins of the first circuit interface J1 are connected with humidifying spraying nozzle；The configuration of the present invention is simple, it is of low cost, recycle control of the low-grade industrial exhaust heat realization to the temperature and humidity in agricultural greenhouse, both the utilization rate of industrial exhaust heat energy had been improved, it can make the environment in agricultural greenhouse simultaneously always in the environment for being most suitable for growth, the input of three-phase electrical source of power is avoided, securely and reliably, powerful guarantee is provided for the quality and quality of agricultural product.
Description
Technical field
The present invention relates to agricultural greenhouse environment controlling technique fields, particularly a kind of agricultural greenhouse ring using industrial exhaust heat
Border control circuit.
Background technology
With the continuous propulsion of agricultural modernization degree, more and more informationization technologies are applied in agricultural production, had
Agricultural production efficiency is improved to effect, reduces influence of the natural cause to agricultural production, agricultural production has seasonal spy
Point, agricultural greenhouse are exactly counter-seas on production, improve the agricultural production efficiency of agricultural greenhouse, crops life is influenced in agricultural greenhouse
Long environmental factor is mainly temperature and humidity, and the temperature and humidity of agricultural greenhouse is too low or excessively high, will all influence crops
Quality and the speed of growth, be bound to cause the reduction of Household income.
In the case where country vigorously advocates the overall situation of energy-saving and emission-reduction, waste heat power generation equipment has carried out large-scale popularization, effectively
The efficient utilization of the energy can be realized using remaining low grade residual heat is remained after cogeneration, and Chinese patent literature discloses a kind of agriculture
The intelligent control circuit of sparetime university's canopy geothermal heating system（Application number：201410762907.1；Publication No.：CN 104635530
A）, the temperature control which carries out agricultural greenhouse using GEOTHERMAL WATER wastes energy, it is necessary to extracted out GEOTHERMAL WATER with water pump
Source, while the introducing of three-phase electrical source of power, there are security risks under hot and humid environment.
The content of the invention
For the above situation, to overcome the defect of the prior art, being designed to provide for the present invention utilizes cogeneration
After low-grade industrial afterheat power generation afterwards for greenhouse heat, cold water for greenhouse cooling and humidification a kind of saving energy,
The safe and reliable agricultural greenhouse environmental Kuznets Curves circuit using industrial exhaust heat.
Its technical solution solved is, including the first circuit interface J1, second circuit interface J2, power interface J3, temperature
Control circuit and humidity control circuit, 1 pin and 2 pins of the first circuit interface J1 are connected to the first humistor
With the second humistor, 5 pins and 4 pins of the first circuit interface J1 are connected to hot-water line triple valve and cold water pipe threeway
Valve, 6 pins of the first circuit interface J1 are connected with humidifying spraying nozzle；
1 pin, 3 pins, 5 pins and 7 pins of the second circuit interface J2 are connected to the first thermistor,
Two thermistors, the 3rd thermistor and the 4th thermistor；
1 pin and 2 pins of the first circuit interface J1 is connected with the input terminal of humidity control circuit, humid control
The output terminal of circuit is connected with 6 pins of the first circuit interface J1, the input terminal of second circuit interface J2 and temperature-control circuit
Connection, the output terminal of temperature-control circuit are connected with 5 pins of the first circuit interface J1 and 4 pins, and power interface J3 is humidity
Control circuit and temperature-control circuit provide electric energy；
The humidity control circuit includes operational amplifier U1-A, the chip U11 of model LM331, operational amplifier U1-
B, operational amplifier U2-A, comparator U2-B and photo-coupler PC1, the reverse input end of the operational amplifier U1-A is through capacitance
C1 is grounded GND, and the reverse input end of operational amplifier U1-A is connected with 1 pin of the first circuit interface J1, operational amplifier U1-
The reverse input end of A is connected with one end of resistance R1, and the other end of resistance R1 is connected with 2 pins of the first circuit interface J1, electricity
The other end of resistance R1 is connected with one end of resistance R2, and the other end of resistance R2 is connected with the output terminal of operational amplifier U1-A, electricity
One end of resistance R2 is connected with one end of resistance R3, and the other end of resistance R3 is connected with the in-phase input end of operational amplifier U1-A,
The other end of resistance R3 is connected with one end of resistance R4, and one end of the other end ground connection GND, resistance R2 of resistance R4 are with capacitance C2's
One end connects, and the other end of capacitance C2 is connected with one end of resistance R5, the other end of resistance R5 and the chip of model LM331
The 7 pins connection of U11, the other end of capacitance C2 are connected with one end of resistance R6, the other end of resistance R6 and one end of resistance R7
Connection, the other end of resistance R7 are connected with 7 pins of the chip U11 of model LM331, and the 8 of the chip U11 of model LM331
Pin is connected with one end of resistance R7, and 5 pins of the chip U11 of model LM331 are connected with one end of resistance R10, resistance R10
The other end be connected with one end of resistance R7, the 5 of the chip U11 of model LM331 draw foot meridian capacitor C4 ground connection GND, model
2 pins of the chip U11 of LM331 are grounded GND through resistance R8, and 1 pin of the chip U11 of model LM331 is grounded through resistance R11
Draw foot meridian capacitor C3 ground connection GND, 3 pins and 4 of the chip U11 of model LM331 in the 1 of the chip U11 of GND, model LM331
Pin is all grounded GND, homophase input of 1 pin through resistance R13 Yu operational amplifier U1-B of the chip U11 of model LM331
End connection, the reverse input end of operational amplifier U1-B are connected through resistance R12 with the output terminal of operational amplifier U1-B, and computing is put
The output terminal of big device U1-B is connected with one end of resistance R14, the other end of resistance R14 and the reversed input of operational amplifier U2-A
End connection, the in-phase input end of operational amplifier U2-A are grounded GND, output terminal and the electricity of operational amplifier U2-A through resistance R17
One end connection of R16 is hindered, the other end of resistance R16 is connected with one end of resistance R15, another termination power interface of resistance R15
- 15V the power supplys of J3, the output terminal of operational amplifier U2-A are connected with the reverse input end of comparator U2-B through resistance R18, compare
The in-phase input end of device U2-B and the maximum end of potentiometer R19, the minimum value end of potentiometer R19 and the slip of potentiometer R19
Contact connects, and the minimum value end of potentiometer R19 is leading-out terminal REF1, the in-phase input end of comparator U2-B through resistance R20 with than
Output terminal connection compared with device U2-B, the output terminal of comparator U2-B is connected with one end of resistance R21, the other end of resistance R21 and
The 1 pin connection of photo-coupler PC1, the 2 pins ground connection GND of photo-coupler PC1,5 pins of photo-coupler PC1 connect power interface
+ 5V the power supplys of J3,4 pins of photo-coupler PC1 are connected with one end of resistance R22, the other end and the field-effect tube Q1 of resistance R22
Grid connection, the source electrode of the grounded drain GND of field-effect tube Q1, field-effect tube Q1 through resistance R23 connect power interface J3+
24V power supplys, the source electrode of field-effect tube Q1 are connected with 6 pins of the first circuit interface J1；
The temperature-control circuit includes operational amplifier U3-A, operational amplifier U4-A, operational amplifier U5-A, computing
Amplifier U6-A, comparator U7-B, comparator U9-B and diode D1-D8, the reverse input end of the operational amplifier U3-A
It is connected with one end of resistance R26, the other end of resistance R26 is connected with one end of resistance R24, another termination power of resistance R24
+ 5V the power supplys of interface J3, the other end of resistance R26 are grounded GND through resistance R25, and the other end of resistance R26 is grounded through capacitance C10
The other end of GND, resistance R26 are connected with 1 pin of second circuit interface J2, in-phase input end and the electricity of operational amplifier U3-A
Hinder one end connection of R27, the other end of resistance R27 is connected with the anode of diode D1, the output terminal of operational amplifier U3-A and
The cathode connection of diode D5, the cathode of diode D5 are connected with the anode of diode D1, the anode and diode of diode D5
The anode connection of D6, the cathode of diode D6 are connected with the output terminal of operational amplifier U4-A, the output of operational amplifier U4-A
End is connected with the anode of diode D2, and the cathode of diode D2 is connected with the cathode of diode D1, and operational amplifier U4-A's is defeated
Outlet is connected through resistance R31 with the in-phase input end of operational amplifier U4-A, reverse input end and the electricity of operational amplifier U4-A
One end connection of R30 is hindered, the other end of resistance R30 is connected with one end of resistance R28, another termination power interface of resistance R28
+ 5V the power supplys of J3, the other end of resistance R30 are grounded GND through resistance R29, and the other end of resistance R30 is grounded GND through capacitance C11,
The other end of resistance R30 is connected with 3 pins of second circuit interface J2, and the anode of diode D5 connects with the anode of diode D7
It connects, the anode of diode D7 is connected through resistance R40 with the reverse input end of comparator U7-B, the in-phase input end of comparator U7-B
GND is grounded through resistance R42, the in-phase input end of comparator U7-B is connected with the maximum end of potentiometer R41, potentiometer R41's
Minimum value end is connected with the slider of potentiometer R41, and the minimum value end of potentiometer R41 is leading-out terminal REF2, comparator U7-B
Input terminal connection of the output terminal through resistance R43 NAND gates U10-B, the input terminal of NOT gate U10-B and the one of NAND gate U8-B defeated
Enter end connection, the input terminal of NOT gate U10-B is connected with an input terminal of NAND gate U8-A, the output terminal of NOT gate U10-B with it is non-
The input terminal connection of door U8-C, the cathode of diode D7 are connected with the output terminal of operational amplifier U5-A, operational amplifier U5-
The output terminal of A is connected through resistance R35 with the in-phase input end of operational amplifier U5-A, the output terminal of operational amplifier U5-A and two
One end of the anode connection of pole pipe D3, the reverse input end of operational amplifier U5-A and resistance R34 connects, resistance R34 it is another
End is grounded GND through resistance R33, and the other end of resistance R34 is grounded GND through capacitance C12, and the other end of resistance R34 connects through resistance R32
+ 5V the power supplys of power interface J3, the cathode of diode D3 are connected with the cathode of diode D1, the anode and diode of diode D5
The anode connection of D8, the cathode of diode D8 are connected with the output terminal of operational amplifier U6-A, the output of operational amplifier U6-A
End is connected through resistance R39 with the in-phase input end of operational amplifier U6-A, the reverse input end and resistance of operational amplifier U6-A
One end connection of R38, the other end of resistance R38 are connected with one end of resistance R36, another termination power interface J3 of resistance R36
+ 5V power supplys, the other end of resistance R38 is grounded GND through resistance R37, and the other end of resistance R38 is grounded GND, resistance through capacitance C5
The other end of R38 is connected with 7 pins of second circuit interface J2, and 2 pins, 4 pins, 6 pins and 8 of second circuit interface J2 draw
Foot is grounded GND, and the output terminal of operational amplifier U6-A is connected with the anode of diode D4, cathode and the resistance R45 of diode D4
One end connection, the other end of resistance R45 is connected with the reverse input end of comparator U9-B, the in-phase input end of comparator U9-B
GND is grounded through resistance R47, the in-phase input end of comparator U9-B is connected with the maximum end of potentiometer R46, potentiometer R46's
Minimum value end is connected with the slider of potentiometer R46, and the minimum value end of potentiometer R46 is leading-out terminal REF3, comparator U9-B
Input terminal connection of the output terminal through resistance R48 NAND gates U10-A, the input terminal of NOT gate U10-A is another with NAND gate U8-B's
Input terminal connects, and the output terminal of NOT gate U10-A is connected with another input terminal of NAND gate U8-C, the output terminal of NOT gate U10-A and
Another input terminal connection of NAND gate U8-A, the output terminal of NAND gate U8-A are connected with one end of buzzer BL, buzzer BL's
+ 5V the power supplys of another termination power interface J3,2 pins of the output terminal of NAND gate U8-B through resistance R50 and photo-coupler PC2 connect
Connect, 1 pin of photo-coupler PC2 connects the+15V power supplys of power interface J3,5 pins of photo-coupler PC2 connect power interface J3+
5V power supplys, 4 pins of photo-coupler PC2 are connected with one end of resistance R44, the other end of resistance R44 and the first circuit interface J1
The connection of 5 pins, the output terminal of NAND gate U8-C is connected through resistance R51 with 2 pins of photo-coupler PC3, photo-coupler PC3's
1 pin connects the+15V power supplys of power interface J3, and 5 pins of photo-coupler PC3 connect the+5V power supplys of power interface J3, photo-coupler
4 pins of PC3 are connected with one end of resistance R49, and the other end of resistance R49 is connected with 4 pins of the first circuit interface J1.
The configuration of the present invention is simple, it is of low cost, it recycles low-grade industrial exhaust heat and realizes to the temperature in agricultural greenhouse
With the control of humidity, the utilization rate of industrial exhaust heat energy had both been improved, while the environment in agricultural greenhouse can be made always in most
It is suitble to the environment of growth, avoids the input of three-phase electrical source of power, securely and reliably, provided for the quality and quality of agricultural product
It tries hard to keep barrier.
Description of the drawings
Fig. 1 is the circuit connection diagram of the humidity control circuit of the present invention（a）；
Fig. 2 is the circuit connection diagram of the humidity control circuit of the present invention（b）；
Fig. 3 is the circuit connection diagram of the temperature-control circuit of the present invention（a）；
Fig. 4 is the circuit connection diagram of the temperature-control circuit of the present invention（b）；
Fig. 5 is the circuit connection diagram of the first circuit interface J1 of the present invention；
Fig. 6 is the circuit connection diagram of the second circuit interface J2 of the present invention；
Fig. 7 is the circuit connection diagram of the power interface J3 of the present invention.
Specific embodiment
Below in conjunction with attached drawing, the specific embodiment of the present invention is described in further detail.
In conjunction with shown in Fig. 1 to Fig. 7, a kind of agricultural greenhouse environmental Kuznets Curves circuit using industrial exhaust heat of the invention,
The power interface J3 is the humidity control circuit of the entire agricultural greenhouse using industrial exhaust heat and temperature control electricity
Road provides electric energy, and the power interface J3 power supplys are the combination power generations by solar power generation or wind-power electricity generation or the two, using too
Positive energy or wind energy, save the energy, environmental protection.
The chip U11 of the model LM331 is LM331 voltage to frequency converter.
The first wet sensitive electricity is connected to by 1 pin and 2 pins of the first circuit interface J1 in the humidity control circuit
Resistance and the second humistor, capacitance C1, resistance R1-R4 and operational amplifier U1-A composition humidity sample circuits, by model
Chip U11, the resistance R6-R11 of LM331 and capacitance C2-C4 component frequency voltage conversion circuits, by operational amplifier U1-B, electricity
Hinder R12, resistance R13 composition voltage follower, the add circuit being made of operational amplifier U2-A, resistance R14-R17, by than
Compared with the first hysteresis comparator of device U2-B, resistance R18-R21 composition, imitated by photo-coupler PC1, resistance R22, resistance R23 and field
Should pipe Q1 composition switching value output circuit；Moisture signal is connected through humidity sample circuit with frequency-voltage conversion circuit, frequency
Conversion circuit is connected successively through voltage follower and adder with the first hysteresis comparator, and the first hysteresis comparator and the amount of opening the light are defeated
Go out circuit connection；
Moisture signal is in parallel with resistance R1 by the first humistor and the second humistor, and forms RC with capacitance C1 and return
Road, the time constant RC1 in the RC circuits, R here be after resistance R1 and the series connection of the second humistor again with the first humistor
Resistance value after parallel connection, resistance R3 and resistance R4 series connection partial pressures, are divided and are made to the output voltage of operational amplifier U1-A
For the input of operational amplifier U1-A in-phase input ends, when the voltage at capacitance C1 both ends is higher than the voltage at resistance R4 both ends, fortune
Amplifier U1-A output low level is calculated, capacitance C1 discharges at this time, when the voltage at capacitance C1 both ends is less than the voltage at resistance R4 both ends,
Operational amplifier U1-A exports high level, and the time constant in RC circuits determines the frequency of low and high level switching, that is, square wave
Frequency, so the resistance value of the first humistor and the second humistor determines the frequency of square wave, below different humidity
The frequency of ripple is different；The output terminal of humidity sample circuit and the input terminal of frequency-voltage conversion circuit connect, voltage to frequency conversion
Circuit is connected successively through voltage follower and add circuit with the first hysteresis comparator, the first hysteresis comparator and output switch parameter
Circuit connects, and one end of the capacitance C2 is connected with the output of humidity sample circuit, and the other end of capacitance C2 is connected to model
6 pins of the chip U11 of LM331, for completely cutting off direct current, the resistance R11, capacitance C3 composition RC filter circuits, for filtering out
Interference signal, 6 pins of the chip U11 of model LM331 are signal input part, 1 pin of the chip U11 of model LM331
For signal output part, for the square-wave signal of input to be converted to the amplitude voltage signal directly proportional to square wave frequency, the electricity
Follower is pressed to be influenced by front stage circuit small, DC error is small, and the add circuit is used for frequency-voltage conversion circuit
Value of the voltage signal after voltage follower is modified, the homophase input of the comparator U2-B in first hysteresis comparator
End is connected through potentiometer R19 with the first humistor, and the same phase of comparator U2-B is adjusted by adjusting the resistance value of potentiometer R19
Input voltage, so as to control the output of the output terminal of comparator U2-B；Field-effect tube Q1's in the switching value output circuit
Control signal of the source output as control humidifying spraying nozzle, when 1 pin of photo-coupler PC1 is low level, optical coupling
Device PC1 ends, at this time the source electrode output+24V power supplys of field-effect tube Q1, and the switch of humidifying spraying nozzle disconnects, when photo-coupler PC1's
When 1 pin is high level, photo-coupler PC1 conductings, the source electrode of field-effect tube Q1 exports low level, and the switch of humidifying spraying nozzle closes
It closes.
The temperature-control circuit is made of four road temperature sampling circuits, by taking temperature sampling circuit all the way as an example, by resistance
R24-R27, capacitance C10 and operational amplifier U3-A composition temperature sampling circuits, resistance R25 and the first thermistor, capacitance C10
Bleeder circuit is formed with capacitance C10, operational amplifier U3-A again after parallel connection, the right+5V power supplys of the bleeder circuit divide, and divide
The voltage follower that voltage afterwards is formed through resistance R26 and resistance R27 exports, by diode D1-D4 that four road temperature samplings are electric
The maximum output value on road is selected, and is selected the minimum output valve of four road temperature sampling circuits by diode D5-D8, the maximum selected
The second hysteresis comparator that value and minimum value are respectively compared device U7-B and comparator U9-B compositions compares, and two comparative results pass through
NAND gate U8-A outputs are connected with buzzer BL, the comparative result of minimum value negate afterwards with the comparative result of maximum by with it is non-
The first switch amount circuit that door U8-B is formed via resistance R50, photo-coupler PC2, resistance R44, the first switch amount circuit
Control signal of the signal as hot-water line triple valve is exported, the comparative result that the comparative result of maximum is negated afterwards with minimum value leads to
Cross the second switch amount circuit that NAND gate U9-C is formed via resistance R51, photo-coupler PC3 and resistance R49, the second switch amount
Control signal of the output signal of circuit as cold water pipe triple valve.
In the use of the present invention,
In Fig. 1 and Fig. 2, the humidity value in agricultural greenhouse is preset, when the actual humidity in agricultural greenhouse is less than setting
Humidity value when, the frequency of humidity sample circuit is reduced to certain value at this time, and the comparison voltage of the first hysteresis comparator is less than setting
Fixed humidity value, the output terminal output high level of comparator U2-B, photo-coupler PC1 conductings, the source electrode output of field-effect tube Q1
Low level, the control signal control humidifying spraying nozzle for inputting humidifying spraying nozzle at this time start to work, agricultural greenhouse are humidified；Work as agriculture
Actual humidity in sparetime university's canopy higher than setting humidity value when, the frequency of humidity sample circuit increases to certain value at this time, first
The comparison voltage of hysteresis comparator is higher than the output terminal output low level of the humidity value, at this time comparator U2-B of setting, optical coupling
Device PC1 ends, the source electrode output high level of field-effect tube Q1, and humidifying spraying nozzle does not work at this time, and the present invention is using sluggish ratio
Compared with device, humidifying spraying nozzle will not frequently work, and for the temperature of agricultural greenhouse in a section, humidifying spraying nozzle is idle, section
Water has been saved, and the temperature in agricultural greenhouse is made to be maintained in a suitable scope, has improved the utilization of industrial exhaust heat energy
Rate.
In Fig. 3 and Fig. 4, the temperature value in agricultural greenhouse, the first thermistor, the second thermistor, the 3rd are preset
After one resistor coupled in parallel of thermistor and the 4th thermistor and temperature sampling circuit, connect and divided with another resistance,
Obtained voltage exports after voltage follower, as long as after temperature all the way therein is less than some value, the partial pressure of the thermistor
With regard to reducing, the network being made of diode D1-D4 just selects the minimum value, if the minimum value is less than setting value, comparator U7-
The output terminal output high level of B, the output terminal output high level of comparator U9-B, the low level of NAND gate U8-B outputs at this time, light
5 pins of 4 pins of coupler PC1 through resistance R44 output high level to the first circuit interface J1 control the triple valve of hot-water line
The used hot water of cogeneration profit is sent into agricultural greenhouse to heat agricultural greenhouse；When temperature all the way therein is higher than some
During value, the output terminal of comparator U9-B exports low level, at this time the output terminal output low level of comparator U7-B, at this time NAND gate
U8-C exports low level, then 4 pins of photo-coupler PC3 draw through resistance R49 output high level to the 4 of the first circuit interface J1
Foot controls the triple valve of cold water pipe that cold water feeding agricultural greenhouse cools down to agricultural greenhouse；When the output of comparator U9-B
End output low level, the output terminal output high level of comparator U7-B illustrate that the temperature of thermistor detection has and are set higher than maximum
Definite value has less than minimum setting value, illustrates that thermistor malfunctions, and NAND gate U8-A exports low level at this time, and buzzer BL works,
Farmer's thermistor is reminded to be out of order, thermistor need to be replaced.
The configuration of the present invention is simple, it is of low cost, it recycles low-grade industrial exhaust heat and realizes to the temperature in agricultural greenhouse
With the control of humidity, the utilization rate of industrial exhaust heat energy had both been improved, while the environment in agricultural greenhouse can be made always in most
It is suitble to the environment of growth, avoids the input of three-phase electrical source of power, securely and reliably, provided for the quality and quality of agricultural product
It tries hard to keep barrier.
Claims (2)
1. a kind of agricultural greenhouse environmental Kuznets Curves circuit using industrial exhaust heat, including the first circuit interface J1, second circuit interface
J2, power interface J3, temperature-control circuit and humidity control circuit, which is characterized in that 1 pin of the first circuit interface J1
The first humistor and the second humistor, 5 pins of the first circuit interface J1 and 4 pins difference are connected to 2 pins
Hot-water line triple valve and cold water pipe triple valve are connected with, 6 pins of the first circuit interface J1 are connected with humidifying spraying nozzle；
1 pin, 3 pins, 5 pins and 7 pins of the second circuit interface J2 are connected to the first thermistor, the second heat
Quick resistance, the 3rd thermistor and the 4th thermistor；
1 pin and 2 pins of the first circuit interface J1 is connected with the input terminal of humidity control circuit, humidity control circuit
Output terminal be connected with 6 pins of the first circuit interface J1, the connection of the input terminal of second circuit interface J2 and temperature-control circuit,
The output terminal of temperature-control circuit is connected with 5 pins of the first circuit interface J1 and 4 pins, and power interface J3 is humid control electricity
Road and temperature-control circuit provide electric energy, due to make use of industrial exhaust heat, avoid the input of three-phase electrical source of power, power interface
J3 power supplys can be generated electricity by the combination of solar power generation or wind-power electricity generation or the two, utilize solar energy or wind energy；
The humidity control circuit includes operational amplifier U1-A, the chip U11 of model LM331, operational amplifier U1-B, fortune
Amplifier U2-A, comparator U2-B and photo-coupler PC1, the reverse input end of the operational amplifier U1-A is calculated to connect through capacitance C1
Ground GND, the reverse input end of operational amplifier U1-A are connected with 1 pin of the first circuit interface J1, operational amplifier U1-A's
Reverse input end is connected with one end of resistance R1, and the other end of resistance R1 is connected with 2 pins of the first circuit interface J1, resistance R1
The other end be connected with one end of resistance R2, the other end of resistance R2 is connected with the output terminal of operational amplifier U1-A, resistance R2
One end be connected with one end of resistance R3, the other end of resistance R3 is connected with the in-phase input end of operational amplifier U1-A, resistance
The other end of R3 is connected with one end of resistance R4, the other end ground connection GND of resistance R4, one end of resistance R2 and one end of capacitance C2
Connection, the other end of capacitance C2 are connected with one end of resistance R5, the other end of resistance R5 and the 7 of the chip U11 of model LM331
Pin connects, and the other end of capacitance C2 is connected with one end of resistance R6, and the other end of resistance R6 is connected with one end of resistance R7, electricity
The other end of resistance R7 is connected with 7 pins of the chip U11 of model LM331,8 pins and the electricity of the chip U11 of model LM331
One end connection of R7 is hindered, 5 pins of the chip U11 of model LM331 are connected with one end of resistance R10, the other end of resistance R10
It is connected with one end of resistance R7, the 5 of the chip U11 of model LM331 draws foot meridian capacitor C4 ground connection GND, the core of model LM331
2 pins of piece U11 are grounded GND through resistance R8, and 1 pin of the chip U11 of model LM331 is grounded GND, model through resistance R11
Draw foot meridian capacitor C3 for the 1 of the chip U11 of LM331 and be grounded GND, 3 pins and 4 pins of the chip U11 of model LM331 all connect
1 pin of the chip U11 of ground GND, model LM331 are connected through resistance R13 with the in-phase input end of operational amplifier U1-B, fortune
The reverse input end for calculating amplifier U1-B is connected through resistance R12 with the output terminal of operational amplifier U1-B, operational amplifier U1-B
Output terminal be connected with one end of resistance R14, the other end of resistance R14 is connected with the reverse input end of operational amplifier U2-A,
The in-phase input end of operational amplifier U2-A is grounded GND through resistance R17, and the output terminal of operational amplifier U2-A is with resistance R16's
One end connects, and the other end of resistance R16 is connected with one end of resistance R15 ,-the 15V of another termination power interface J3 of resistance R15
Power supply, the output terminal of operational amplifier U2-A are connected through resistance R18 with the reverse input end of comparator U2-B, comparator U2-B's
The maximum end of in-phase input end and potentiometer R19, the minimum value end of potentiometer R19 are connected with the slider of potentiometer R19,
The minimum value end of potentiometer R19 is leading-out terminal REF1, and the in-phase input end of comparator U2-B is through resistance R20's and comparator U2-B
Output terminal connects, and the output terminal of comparator U2-B is connected with one end of resistance R21, the other end and the photo-coupler PC1 of resistance R21
The connection of 1 pin, the 2 pins ground connection GND of photo-coupler PC1,5 pins of photo-coupler PC1 connect the+5V electricity of power interface J3
Source, 4 pins of photo-coupler PC1 are connected with one end of resistance R22, and the other end of resistance R22 connects with the grid of field-effect tube Q1
It connects, the source electrode of the grounded drain GND of field-effect tube Q1, field-effect tube Q1 connect the+24V power supplys of power interface J3, field through resistance R23
The source electrode of effect pipe Q1 is connected with 6 pins of the first circuit interface J1；
The temperature-control circuit includes operational amplifier U3-A, operational amplifier U4-A, operational amplifier U5-A, operation amplifier
Device U6-A, comparator U7-B, reverse input end and the electricity of comparator U9-B and diode D1-D8, the operational amplifier U3-A
One end connection of R26 is hindered, the other end of resistance R26 is connected with one end of resistance R24, another termination power interface of resistance R24
+ 5V the power supplys of J3, the other end of resistance R26 are grounded GND through resistance R25, and the other end of resistance R26 is grounded GND through capacitance C10,
The other end of resistance R26 is connected with 1 pin of second circuit interface J2, the in-phase input end and resistance of operational amplifier U3-A
One end connection of R27, the other end of resistance R27 are connected with the anode of diode D1, the output terminal of operational amplifier U3-A and two
The cathode connection of pole pipe D5, the cathode of diode D5 are connected with the anode of diode D1, anode and the diode D6 of diode D5
Anode connection, the cathode of diode D6 is connected with the output terminal of operational amplifier U4-A, the output terminal of operational amplifier U4-A
It is connected with the anode of diode D2, the cathode of diode D2 is connected with the cathode of diode D1, the output of operational amplifier U4-A
End is connected through resistance R31 with the in-phase input end of operational amplifier U4-A, the reverse input end and resistance of operational amplifier U4-A
One end connection of R30, the other end of resistance R30 are connected with one end of resistance R28, another termination power interface J3 of resistance R28
+ 5V power supplys, the other end of resistance R30 is grounded GND through resistance R29, and the other end of resistance R30 is grounded GND, electricity through capacitance C11
The other end of resistance R30 is connected with 3 pins of second circuit interface J2, and the anode of diode D5 is connected with the anode of diode D7,
The anode of diode D7 is connected through resistance R40 with the reverse input end of comparator U7-B, the in-phase input end warp of comparator U7-B
Resistance R42 is grounded GND, and the in-phase input end of comparator U7-B is connected with the maximum end of potentiometer R41, and potentiometer R41 is most
Small value end is connected with the slider of potentiometer R41, and the minimum value end of potentiometer R41 is leading-out terminal REF2, comparator U7-B's
Input terminal connection of the output terminal through resistance R43 NAND gates U10-B, the input terminal of NOT gate U10-B and an input of NAND gate U8-B
End connection, the input terminal of NOT gate U10-B are connected with an input terminal of NAND gate U8-A, the output terminal and NAND gate of NOT gate U10-B
The input terminal connection of U8-C, the cathode of diode D7 are connected with the output terminal of operational amplifier U5-A, operational amplifier U5-A
Output terminal be connected through resistance R35 with the in-phase input end of operational amplifier U5-A, the output terminal of operational amplifier U5-A and two
One end of the anode connection of pole pipe D3, the reverse input end of operational amplifier U5-A and resistance R34 connects, resistance R34 it is another
End is grounded GND through resistance R33, and the other end of resistance R34 is grounded GND through capacitance C12, and the other end of resistance R34 connects through resistance R32
+ 5V the power supplys of power interface J3, the cathode of diode D3 are connected with the cathode of diode D1, the anode and diode of diode D5
The anode connection of D8, the cathode of diode D8 are connected with the output terminal of operational amplifier U6-A, the output of operational amplifier U6-A
End is connected through resistance R39 with the in-phase input end of operational amplifier U6-A, the reverse input end and resistance of operational amplifier U6-A
One end connection of R38, the other end of resistance R38 are connected with one end of resistance R36, another termination power interface J3 of resistance R36
+ 5V power supplys, the other end of resistance R38 is grounded GND through resistance R37, and the other end of resistance R38 is grounded GND, resistance through capacitance C5
The other end of R38 is connected with 7 pins of second circuit interface J2, and 2 pins, 4 pins, 6 pins and 8 of second circuit interface J2 draw
Foot is grounded GND, and the output terminal of operational amplifier U6-A is connected with the anode of diode D4, cathode and the resistance R45 of diode D4
One end connection, the other end of resistance R45 is connected with the reverse input end of comparator U9-B, the in-phase input end of comparator U9-B
GND is grounded through resistance R47, the in-phase input end of comparator U9-B is connected with the maximum end of potentiometer R46, potentiometer R46's
Minimum value end is connected with the slider of potentiometer R46, and the minimum value end of potentiometer R46 is leading-out terminal REF3, comparator U9-B
Input terminal connection of the output terminal through resistance R48 NAND gates U10-A, the input terminal of NOT gate U10-A is another with NAND gate U8-B's
Input terminal connects, and the output terminal of NOT gate U10-A is connected with another input terminal of NAND gate U8-C, the output terminal of NOT gate U10-A and
Another input terminal connection of NAND gate U8-A, the output terminal of NAND gate U8-A are connected with one end of buzzer BL, buzzer BL's
+ 5V the power supplys of another termination power interface J3,2 pins of the output terminal of NAND gate U8-B through resistance R50 and photo-coupler PC2 connect
Connect, 1 pin of photo-coupler PC2 connects the+15V power supplys of power interface J3,5 pins of photo-coupler PC2 connect power interface J3+
5V power supplys, 4 pins of photo-coupler PC2 are connected with one end of resistance R44, the other end of resistance R44 and the first circuit interface J1
The connection of 5 pins, control the triple valve of hot-water line by the used hot water of cogeneration profit be sent into agricultural greenhouse to agricultural greenhouse into
Row heating, the output terminal of NAND gate U8-C are connected through resistance R51 with 2 pins of photo-coupler PC3,1 pin of photo-coupler PC3
Connecing+15V the power supplys of power interface J3,5 pins of photo-coupler PC3 connect the+5V power supplys of power interface J3, and the 4 of photo-coupler PC3
Pin is connected with one end of resistance R49, and the other end of resistance R49 is connected with 4 pins of the first circuit interface J1, controls cold water pipe
Triple valve by cold water feeding agricultural greenhouse cool down to agricultural greenhouse.
A kind of 2. agricultural greenhouse environmental Kuznets Curves circuit using industrial exhaust heat according to claim 1, which is characterized in that institute
The chip U11 for stating model LM331 is LM331 voltage to frequency converter.
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| CN201610350990.0A CN105824342B (en) | 2016-05-25 | 2016-05-25 | A kind of agricultural greenhouse environmental Kuznets Curves circuit using industrial exhaust heat |
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| CN201610350990.0A CN105824342B (en) | 2016-05-25 | 2016-05-25 | A kind of agricultural greenhouse environmental Kuznets Curves circuit using industrial exhaust heat |
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| CN105824342B true CN105824342B (en) | 2018-05-25 |
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| CN205644332U (en) * | 2016-05-25 | 2016-10-12 | 黄河科技学院 | Utilize green house environmental control circuit of industrial exhaust heat |
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| CN2504691Y (en) * | 2001-10-30 | 2002-08-07 | 师拴平 | Precision agriculture electronic guidance system |
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| CN105824342A (en) | 2016-08-03 |
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