CN203465551U - Circuit for seawater desalination system - Google Patents
Circuit for seawater desalination system Download PDFInfo
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- CN203465551U CN203465551U CN201320449693.3U CN201320449693U CN203465551U CN 203465551 U CN203465551 U CN 203465551U CN 201320449693 U CN201320449693 U CN 201320449693U CN 203465551 U CN203465551 U CN 203465551U
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Abstract
The utility model discloses a circuit for a seawater desalination system. The circuit comprises a basic circuit of an STC12C5628AD chip, a 12-5V voltage conversion circuit, a liquid level measuring circuit, a PWM control circuit, a motor control circuit and a temperature detection circuit, and specifically comprises a voltage-stabilizing block U1, a single chip microcomputer chip U2, a chip U3, interfaces J1-J5, resistors R1-R9, capacitors C1-C13, a crystal oscillator Y1, field-effect tubes Q1-Q2, rectifying diodes D1-D2 and an inductor L1. According to the circuit, a plurality of liquid level signals can be received to be transmitted to a single chip microcomputer, and a plurality of liquid levels can be monitored at the same time; and the PWM control circuit utilizes the field-effect tube Q1 to control the on-off of a circuit of the interface J2, and the effect that small currents are utilized to control large currents is achieved.
Description
Technical field
The utility model belongs to semiconductor chilling plate control technology field, relates to a kind of circuit for seawater desalination system.
Background technology
Desalinization utilizes seawater desalination to produce fresh water.Be the increment technique of increasing income that realizes water resource utilization, can increase fresh water total amount, and be not subject to space-time and climate effect, water quality is good, price is gradually reasonable, can ensure the stable water supplies such as coastal Drinking Water for Residents and Industrial Boiler moisturizing.From seawater, obtain the process meaning desalinization of fresh water.Method for desalting seawater used has seawater freezing process, electroosmose process, the way of distillation, hyperfiltration now, but the control circuit in its desalting process is relatively loaded down with trivial details, and in some method for desalting seawater, there is no control circuit, make whole desalting process loaded down with trivial details.
The utility model utilizes semiconductor chilling plate to carry out in the middle of the process of desalinization needing motor, semiconductor chilling plate, solenoid valve to control accurately, and temperature, liquid level, air pressure are measured accurately, can know clearly the duty of whole system, while being convenient to break down, corresponding module be carried out to manual operation.This control circuit is controlled accurately, simple, cost is low, be swift in response, antijamming capability is strong, meets system completely and controls requirement.
Summary of the invention
The purpose of this utility model is exactly deficiency complicated, loaded down with trivial details for prior art, delay of response, and a kind of circuit for seawater desalination system is provided.
The utility model comprises basic circuit, 12-5V voltage conversion circuit, level gauging circuit, pwm control circuit, circuit for controlling motor and the temperature sensing circuit of STC12C5628AD chip.
The basic circuit of STC12C5628AD chip comprises singlechip chip U2, the first resistance R 1, the 3rd divider resistance R3, the 4th divider resistance R4, the 5th resistance R 5, the 9th electrochemical capacitor C9, the tenth capacitor C the 10, the 11 capacitor C the 11, the 12 capacitor C the 12, the 13 capacitor C 13, the first light emitting diode DS1, the second light emitting diode DS2, the first switch S 1, crystal oscillator Y1; One end of the 5th resistance R 5 joins with ground, and the 3rd pin of the negative pole end of the other end and the 9th electrochemical capacitor C9, singlechip chip U2 joins, and positive terminal and the high level of the 9th electrochemical capacitor C9 join; One end and the high level of the 3rd divider resistance R3 join, and the positive pole of the other end and the first light emitting diode DS1 joins, and the second pin of the negative pole of the first light emitting diode DS1 and singlechip chip U2 joins; One end and the high level of the 4th divider resistance R4 join, and the positive pole of the other end and the second light emitting diode DS2 joins, and the first pin of the negative pole of the second light emitting diode DS2 and singlechip chip U2 joins; One end ground connection of the first switch S 1, joins with one end of the tenth capacitor C 10 simultaneously; Ground 27 pins of the other end of one end of the other end of the first switch S 1 and the first resistance R 1, the tenth capacitor C 10, singlechip chip U2 join; The other end and the high level of the first resistance R 1 join; The 28th pin of one end of the 11 capacitor C 11 and high level, singlechip chip U2 joins; The other end of the 11 capacitor C 11 joins with ground; One end of the 12 capacitor C 12 joins with ground; The 6th pin of one end of the other end of the 12 capacitor C 12 and the first crystal oscillator Y1, singlechip chip U2 joins; One end of the 13 capacitor C 13 joins with ground; The 7th pin of the other end of the other end of the 13 capacitor C 13 and the first crystal oscillator Y1, singlechip chip U2 joins.
12-5V voltage conversion circuit comprises the 3rd electrochemical capacitor C3, the 4th capacitor C 4, regulator block U1, the 5th electrochemical capacitor C5, the 6th capacitor C 6.The positive pole of the 3rd electrochemical capacitor C3 joins with the Vin of just+12V power supply, the 4th capacitor C 4 one end, regulator block U1; One end of the GND pin of the other end of the other end of the 3rd electrochemical capacitor C3 and the 4th capacitor C 4, regulator block U1, the negative pole of the 5th electrochemical capacitor C5, the 6th capacitor C 6 joins, simultaneously ground connection; The Vout pin of the positive pole of the 5th electrochemical capacitor C5 and regulator block U1, the other end of the 6th capacitor C 6, VCC join.
Level gauging circuit comprises chip U3, the second capacitor C 2, the 8th resistance R 8, interface J5, interface J1, the 9th resistance R 9.The 9th pin of the first pin of chip U3 and singlechip chip U2 joins; The 2nd pin of chip U3 and the 10th pin of singlechip chip U2 join; The 7th pin of U3 and the 13rd pin of singlechip chip U2 join; The 16th pin of chip U3 and one end, the high level of the second capacitor C 2 join; The 15th pin of the other end of the second capacitor C 2 and chip U3, low level are joined; One end of the 8th resistance R 8 and high level VCC join; The 14th pin of the other end of the 8th resistance R 8 and chip U3, the first pin of interface J5 join; The second pin and the low level of interface J5 are joined; One end of the 9th resistance R 9 and high level VCC join; The 13 pin of the other end of the 9th resistance R 9 and chip U3, the first pin of interface J1 join; The second pin and the low level of interface J1 are joined; The 8th pin of chip U3, the 10th pin and low level are joined.
Pwm control circuit comprises the second resistance R 2, the first field effect transistor Q1, the first commutation diode D1, the first inductance L 1, the 7th electrochemical capacitor C7, the 8th capacitor C 8, interface J2.The 17 pin of one end of the second resistance R 2 and single-chip microcomputer U2, the grid of the first field effect transistor Q1 join; The other end and the low level of the second resistance R 2 are joined; Source electrode and the low level of the first field effect transistor Q1 are joined; The second pin of one end of the negative pole of the positive pole of the drain electrode of the first field effect transistor Q1 and the first commutator tube D1, the 7th electrochemical capacitor C7, the 8th capacitor C 8, interface J2 joins; One end of the negative pole of the first commutation diode D1 and the first inductance L 1 ,+12V power supply join; The first pin of the other end of the positive pole of the other end of the first inductance L 1 and the 7th electrochemical capacitor C7, the 8th capacitor C 8, interface J2 joins.
Circuit for controlling motor comprises the 6th resistance R 6, the second field effect transistor Q2, the second commutation diode D2, interface J3.25 pins of one end of the 6th resistance and singlechip chip U2, the grid of the second field effect transistor Q2 join; The other end and the low level of the 6th resistance R 6 are joined; Source electrode and the low level of the second field effect transistor Q2 are joined; The second pin of the positive pole of the drain electrode of the second field effect transistor Q2 and the second commutation diode D2, interface J3 joins; The first pin of the negative pole of the second commutation diode D2 and interface J3 ,+12V power supply join;
Temperature sensing circuit comprises interface J4, the 7th resistance R 7, the first capacitor C 1.The first pin and the low level of interface J4 are joined; The 18 pin of the second pin of interface J4 and one end of the 7th resistance R 7, singlechip chip U2 joins; The 3rd pin of interface J4 and one end, the other end of the 7th resistance R 7, the high level of the first capacitor C 1 join; The other end and the low level of the first capacitor C 1 are joined.
The utility model beneficial effect is as follows:
The singlechip chip STC12C5628AD using in the utility model has 10,8 tunnel high-speed a/d converter, and speed can reach 100KHz, has guaranteed precision and the accuracy of sampling.In the utility model, level gauging circuit utilizes parallel port to turn serial port chip 74HC165 can to accept a plurality of liquid level signals and be transferred to single-chip microcomputer, monitor a plurality of liquid levels simultaneously; In the utility model, pwm control circuit utilizes the break-make of the circuit of field effect transistor Q1 control interface J2, realizes the effect with the large electric current of Small current control.
Accompanying drawing explanation
Fig. 1 is the basic circuit schematic diagram of the STC12C5628AD chip in the utility model;
Fig. 2 is the 12-5v voltage conversion circuit schematic diagram in the utility model;
Fig. 3 is level gauging circuit diagram in the utility model;
Fig. 4 is pwm control circuit schematic diagram in the utility model;
Fig. 5 is circuit for controlling motor schematic diagram in the utility model;
Fig. 6 is temperature sensing circuit schematic diagram in the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described,
For a circuit for seawater desalination system, comprise basic circuit, 112-5V voltage conversion circuit, level gauging circuit, pwm control circuit, circuit for controlling motor and the temperature sensing circuit of STC12C5628AD chip.
As shown in Figure 1, the basic circuit of STC12C5628AD chip comprises singlechip chip U2, the first resistance R 1, the 3rd divider resistance R3, the 4th divider resistance R4, the 5th resistance R 5, the 9th electrochemical capacitor C9, the tenth capacitor C the 10, the 11 capacitor C the 11, the 12 capacitor C the 12, the 13 capacitor C 13, the first light emitting diode DS1, the second light emitting diode DS2, the first switch S 1, crystal oscillator Y1; One end of the 5th resistance R 5 joins with ground, and the 3rd pin of the negative pole end of the other end and the 9th electrochemical capacitor C9, singlechip chip U2 joins, and positive terminal and the high level of the 9th electrochemical capacitor C9 join; One end and the high level of the 3rd divider resistance R3 join, and the positive pole of the other end and the first light emitting diode DS1 joins, and the second pin of the negative pole of the first light emitting diode DS1 and singlechip chip U2 joins; One end and the high level of the 4th divider resistance R4 join, and the positive pole of the other end and the second light emitting diode DS2 joins, and the first pin of the negative pole of the second light emitting diode DS2 and singlechip chip U2 joins; One end ground connection of the first switch S 1, joins with one end of the tenth capacitor C 10 simultaneously; Ground 27 pins of the other end of one end of the other end of the first switch S 1 and the first resistance R 1, the tenth capacitor C 10, singlechip chip U2 join; The other end and the high level of the first resistance R 1 join; The 28th pin of one end of the 11 capacitor C 11 and high level, singlechip chip U2 joins; The other end of the 11 capacitor C 11 joins with ground; One end of the 12 capacitor C 12 joins with ground; The 6th pin of one end of the other end of the 12 capacitor C 12 and the first crystal oscillator Y1, singlechip chip U2 joins; One end of the 13 capacitor C 13 joins with ground; The 7th pin of the other end of the other end of the 13 capacitor C 13 and the first crystal oscillator Y1, singlechip chip U2 joins.
As shown in Figure 2,12-5V voltage conversion circuit comprises the 3rd electrochemical capacitor C3, the 4th capacitor C 4, regulator block U1, the 5th electrochemical capacitor C5, the 6th capacitor C 6.The positive pole of the 3rd electrochemical capacitor C3 joins with the Vin of just+12V power supply, the 4th capacitor C 4 one end, regulator block U1; One end of the GND pin of the other end of the other end of the 3rd electrochemical capacitor C3 and the 4th capacitor C 4, regulator block U1, the negative pole of the 5th electrochemical capacitor C5, the 6th capacitor C 6 joins, simultaneously ground connection; The Vout pin of the positive pole of the 5th electrochemical capacitor C5 and regulator block U1, the other end of the 6th capacitor C 6, VCC join.
As shown in Figure 3, level gauging circuit comprises chip U3, the second capacitor C 2, the 8th resistance R 8, interface J5, interface J1, the 9th resistance R 9.The 9th pin of the first pin of chip U3 and singlechip chip U2 joins; The 2nd pin of chip U3 and the 10th pin of singlechip chip U2 join; The 7th pin of U3 and the 13rd pin of singlechip chip U2 join; The 16th pin of chip U3 and one end, the high level of the second capacitor C 2 join; The 15th pin of the other end of the second capacitor C 2 and chip U3, low level are joined; One end of the 8th resistance R 8 and high level VCC join; The 14th pin of the other end of the 8th resistance R 8 and chip U3, the first pin of interface J5 join; The second pin and the low level of interface J5 are joined; One end of the 9th resistance R 9 and high level VCC join; The 13 pin of the other end of the 9th resistance R 9 and chip U3, the first pin of interface J1 join; The second pin and the low level of interface J1 are joined; The 8th pin of chip U3, the 10th pin and low level are joined.
As shown in Figure 4, pwm control circuit comprises the second resistance R 2, the first field effect transistor Q1, the first commutation diode D1, the first inductance L 1, the 7th electrochemical capacitor C7, the 8th capacitor C 8, interface J2.The 17 pin of one end of the second resistance R 2 and single-chip microcomputer U2, the grid of the first field effect transistor Q1 join; The other end and the low level of the second resistance R 2 are joined; Source electrode and the low level of the first field effect transistor Q1 are joined; The second pin of one end of the negative pole of the positive pole of the drain electrode of the first field effect transistor Q1 and the first commutator tube D1, the 7th electrochemical capacitor C7, the 8th capacitor C 8, interface J2 joins; One end of the negative pole of the first commutation diode D1 and the first inductance L 1 ,+12V power supply join; The first pin of the other end of the positive pole of the other end of the first inductance L 1 and the 7th electrochemical capacitor C7, the 8th capacitor C 8, interface J2 joins.
As shown in Figure 5, circuit for controlling motor comprises the 6th resistance R 6, the second field effect transistor Q2, the second commutation diode D2, interface J3.25 pins of one end of the 6th resistance and singlechip chip U2, the grid of the second field effect transistor Q2 join; The other end and the low level of the 6th resistance R 6 are joined; Source electrode and the low level of the second field effect transistor Q2 are joined; The second pin of the positive pole of the drain electrode of the second field effect transistor Q2 and the second commutation diode D2, interface J3 joins; The first pin of the negative pole of the second commutation diode D2 and interface J3 ,+12V power supply join;
As shown in Figure 6, temperature sensing circuit comprises interface J4, the 7th resistance R 7, the first capacitor C 1.The first pin and the low level of interface J4 are joined; The 18 pin of the second pin of interface J4 and one end of the 7th resistance R 7, singlechip chip U2 joins; The 3rd pin of interface J4 and one end, the other end of the 7th resistance R 7, the high level of the first capacitor C 1 join; The other end and the low level of the first capacitor C 1 are joined.
Described regulator block U1 model is LM2940, and the model of singlechip chip U2 is STC12C5628AD, and the model of chip U3 is 74HC165,
The model of interface J1, interface J2, interface J3, interface J5 is HEAD2, and the model of interface J4 is HEAD3;
The first resistance R 1 is 1K ohm, and the 3rd divider resistance R3, the 4th divider resistance R4, the 5th resistance R 5 are 10K ohm, and the second resistance R 2, the 6th resistance R 6, the 7th resistance R 7, the 8th resistance R 8, the 9th resistance R 9 are 5K ohm;
The first capacitor C 1, the second capacitor C 2 are 104 uF, the 3rd electrochemical capacitor C3, the 5th electrochemical capacitor C5, the 7th electrochemical capacitor C7 are 100uF, the 9th electrochemical capacitor C9 is for being 10uF, the tenth capacitor C 10 is for being 105uF, and the 4th capacitor C 4, the 6th capacitor C 6, the 8th capacitor C the 8, the 11 capacitor C the 11, the 12 capacitor C the 12, the 13 capacitor C 13 are 0.1uF;
Crystal oscillator Y1 is 6MHz, and the model of the first field effect transistor Q1, the second field effect transistor Q2 is IRLR7843; The model of the first commutation diode D1, the second commutation diode D2 is SS34; The first inductance L 1 is 200uH.
Claims (2)
1. for a circuit for seawater desalination system, it is characterized in that comprising basic circuit, 112-5V voltage conversion circuit, level gauging circuit, pwm control circuit, circuit for controlling motor and the temperature sensing circuit of STC12C5628AD chip;
The basic circuit of STC12C5628AD chip comprises singlechip chip U2, the first resistance R 1, the 3rd divider resistance R3, the 4th divider resistance R4, the 5th resistance R 5, the 9th electrochemical capacitor C9, the tenth capacitor C the 10, the 11 capacitor C the 11, the 12 capacitor C the 12, the 13 capacitor C 13, the first light emitting diode DS1, the second light emitting diode DS2, the first switch S 1, crystal oscillator Y1; One end of the 5th resistance R 5 joins with ground, and the 3rd pin of the negative pole end of the other end and the 9th electrochemical capacitor C9, singlechip chip U2 joins, and positive terminal and the high level of the 9th electrochemical capacitor C9 join; One end and the high level of the 3rd divider resistance R3 join, and the positive pole of the other end and the first light emitting diode DS1 joins, and the second pin of the negative pole of the first light emitting diode DS1 and singlechip chip U2 joins; One end and the high level of the 4th divider resistance R4 join, and the positive pole of the other end and the second light emitting diode DS2 joins, and the first pin of the negative pole of the second light emitting diode DS2 and singlechip chip U2 joins; One end ground connection of the first switch S 1, joins with one end of the tenth capacitor C 10 simultaneously; Ground 27 pins of the other end of one end of the other end of the first switch S 1 and the first resistance R 1, the tenth capacitor C 10, singlechip chip U2 join; The other end and the high level of the first resistance R 1 join; The 28th pin of one end of the 11 capacitor C 11 and high level, singlechip chip U2 joins; The other end of the 11 capacitor C 11 joins with ground; One end of the 12 capacitor C 12 joins with ground; The 6th pin of one end of the other end of the 12 capacitor C 12 and the first crystal oscillator Y1, singlechip chip U2 joins; One end of the 13 capacitor C 13 joins with ground; The 7th pin of the other end of the other end of the 13 capacitor C 13 and the first crystal oscillator Y1, singlechip chip U2 joins.
2. a kind of circuit for seawater desalination system as claimed in claim 1, is characterized in that
12-5V voltage conversion circuit comprises the 3rd electrochemical capacitor C3, the 4th capacitor C 4, regulator block U1, the 5th electrochemical capacitor C5, the 6th capacitor C 6; The positive pole of the 3rd electrochemical capacitor C3 joins with the Vin of just+12V power supply, the 4th capacitor C 4 one end, regulator block U1; One end of the GND pin of the other end of the other end of the 3rd electrochemical capacitor C3 and the 4th capacitor C 4, regulator block U1, the negative pole of the 5th electrochemical capacitor C5, the 6th capacitor C 6 joins, simultaneously ground connection; The Vout pin of the positive pole of the 5th electrochemical capacitor C5 and regulator block U1, the other end of the 6th capacitor C 6, VCC join.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320449693.3U CN203465551U (en) | 2013-07-24 | 2013-07-24 | Circuit for seawater desalination system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320449693.3U CN203465551U (en) | 2013-07-24 | 2013-07-24 | Circuit for seawater desalination system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203465551U true CN203465551U (en) | 2014-03-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320449693.3U Expired - Lifetime CN203465551U (en) | 2013-07-24 | 2013-07-24 | Circuit for seawater desalination system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203465551U (en) |
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2013
- 2013-07-24 CN CN201320449693.3U patent/CN203465551U/en not_active Expired - Lifetime
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Granted publication date: 20140305 |
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