CN106054725A - Drive protection type intelligent dosing system for sewage treatment - Google Patents
Drive protection type intelligent dosing system for sewage treatment Download PDFInfo
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- CN106054725A CN106054725A CN201610499316.9A CN201610499316A CN106054725A CN 106054725 A CN106054725 A CN 106054725A CN 201610499316 A CN201610499316 A CN 201610499316A CN 106054725 A CN106054725 A CN 106054725A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0428—Safety, monitoring
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24215—Scada supervisory control and data acquisition
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
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Abstract
The invention discloses a drive protection type intelligent dosing system for sewage treatment. The system comprises a control chip U1, a capacitor C4, a capacitor C5, a drive circuit, a signal input circuit, a power input circuit, a chip two-stage drive circuit, and a drive protection circuit. To be specific, a positive electrode of the capacitor C4 is connected with a THRES pin of the control chip U1 and a negative electrode of the capacitor C4 is connected with a GND pin of the control chip U1; a positive electrode of the capacitor C5 is connected with a CONT pin of the control chip U1 and a negative electrode of the capacitor C5 is connected with a GND pin of the control chip U1; the drive circuit is connected with the control chip U1; the signal input circuit is connected with the control chip U1; the power input circuit is connected with the signal input circuit; the chip two-stage drive circuit is connected with the control chip U1 and the power input circuit; and the drive protection circuit is connected with the drive circuit. The type of the control chip U1 is NE555. According to the system, the using effect and the intelligent level of the product can be improved; frequent manual operation is avoided; the manpower resource looses are reduced; and the sewage processing effect of the enterprise is improved further.
Description
Technical field
The invention belongs to sewage treatment area, specifically refer to a kind of sewage disposal protection and drive intelligent dosing system.
Background technology
Along with society growing, going from bad to worse of environment, instant stage has been arrived in environmental conservation.For
Reducing the impact on environment, enterprise of today all can arrange what the treatment tank matched to produce in processing production process
Sewage.During sewage disposal, need often to add in treatment tank medicament improve the effect of sewage disposal with
Efficiency.And in order to reduce the difficulty that medicament adds, most enterprises selects to use chemicals dosing plant to realize, its mode realized
For: in chemicals dosing plant, add the medicament needing to use in advance, then by the Teat pipette timing working in chemicals dosing plant by compound pump
Enter in treatment tank.But the dosing pattern of existing chemicals dosing plant is relatively simple, and it is intelligent poor, when actually used
Need preset additive amount of medicament and add interval time, by strict accordance with default additive amount of medicament and interpolation during its work
Work interval time, it is impossible to according to concrete sewage situation from the addition of Row sum-equal matrix medicament and the time of interpolation, at needs
When adjusting additive amount of medicament with the time of interpolation, operator need to be adjusted equipment the most voluntarily, even need time frequent
Want operator every day equipment to be adjusted 5-7 time, significantly waste human resources.
Summary of the invention
It is an object of the invention to overcome the problems referred to above, it is provided that a kind of sewage disposal protection drives intelligent dosing system, energy
Enough improve the using effect of product with intelligent, it is not necessary to carry out artificial frequent operation, reduce the loss of human resources, enter one
Step improves the wastewater treatment efficiency of enterprise.
The purpose of the present invention is achieved through the following technical solutions:
Sewage disposal protection drives intelligent dosing system, including the THRES pipe of control chip U1, positive pole and control chip U1
The electric capacity C4 that foot is connected, negative pole is connected with the GND pin of control chip U1, the CONT pin phase of positive pole and control chip U1
The electric capacity C5 that connection, negative pole are connected with the GND pin of control chip U1, the drive circuit being connected with control chip U1, with
The signal input circuit that control chip U1 is connected, the power supply input circuit being connected with signal input circuit, simultaneously with control
The chip secondary drive circuit that chip U1 is connected with power supply input circuit, and the driving protection electricity being connected with drive circuit
Road；Wherein, the model of control chip U1 is NE555.
As preferably, described power supply input circuit is by the current collection of audion VT1, audion VT2, one end and audion VT1
Resistance R1, the P pole that pole is connected, other end colelctor electrode with audion VT2 after resistance R2 is connected after resistance R3 with three
The colelctor electrode of pole pipe VT2 is connected, N pole is sequentially connected through resistance R4 emitter stage with audion VT2 after resistance R5 two
Pole pipe D1, electric capacity C1, the N pole being arranged in parallel with resistance R3 is connected with the junction point of resistance R4 and resistance R5, P pole is through resistance R6
The Zener diode D2 that base stage with audion VT1 is connected afterwards, and the electric capacity C2 group being arranged in parallel with Zener diode D2
Become；Wherein, the emitter stage of audion VT1 is connected with the base stage of audion VT2, and the P pole of Zener diode D2 is with electric capacity C4's
Negative pole is connected, and the power supply that the junction point of resistance R1 and resistance R2 forms this power supply input circuit with the base stage of audion VT1 is defeated
Enter end.
As preferably, described signal input circuit is connected by the positive pole of negative pole with electric capacity C4, positive pole is through slide rheostat
The electric capacity C3 that after RP2, negative pole with electric capacity C4 is connected, one end is connected with the positive pole of electric capacity C3, the other end after resistance R7 with
The resistance R8 that the TRIG pin of control chip U1 is connected, and one end simultaneously with VCC pin and the RESET pipe of control chip U1
The resistance R9 composition that foot is connected, other end junction point with resistance R7 and resistance R8 after slide rheostat RP1 is connected；Its
In, the negative pole of electric capacity C3 is connected with TRIG pin and the THRES pin of control chip U1 simultaneously, resistance R9 and slide rheostat
The junction point of RP1 is connected with the N pole of diode D1, and the sliding end of slide rheostat RP1 is as the letter of this signal input circuit
Number input Vin.
As preferably, described drive circuit is by the OUT pin of bidirectional thyristor VS1, Teat pipette M, one end and control chip U1
Be connected, the other end and bidirectional thyristor VS1 control the resistance R10 that pole is connected, and positive pole is with bidirectional thyristor VS1's
Control the electric capacity C6 composition that pole is connected, negative pole is connected with second electrode of single file IGCT VS1；Wherein, electric capacity C6's is negative
Pole is connected with the negative pole of electric capacity C5, one end of Teat pipette M is connected with first electrode of bidirectional thyristor VS1, the other end with electricity
The junction point of resistance R1 and resistance R2 is connected.
Further, described chip secondary drive circuit is by audion VT3, audion VT4, and one end is with audion VT3's
The resistance R12 that emitter stage is connected, the other end is connected with the base stage of audion VT3, one end is connected with the base stage of audion VT3
Connect, resistance R11 that other end base stage with audion VT3 after resistance R13 is connected, the base stage phase of positive pole and audion VT3
The electric capacity C7 that connection, negative pole are connected with the colelctor electrode of audion VT4, one end is connected with the colelctor electrode of audion VT3, another
Resistance R14, the N pole that is connected with the base stage of audion VT4 of end is connected with the base stage of audion VT3, P pole is after diode D4
The diode D3 being connected with the junction point of resistance R11 and resistance R13, positive pole is connected with the P pole of diode D4, negative pole is through electricity
The electric capacity C8 that is connected with the N pole of diode D4 after resistance R15, one end is connected with the emitter stage of audion VT3, the other end is with electric
Hold the inductance L1 that is connected of negative pole of C7, and P pole is connected with the negative pole of electric capacity C7, N pole after resistance R16 with electric capacity C8's
The diode D5 composition that negative pole is connected；Wherein, the N pole of diode D4 is connected with the P pole of diode D3, audion VT3's
Base stage is as the input of this chip secondary drive circuit, and the emitter stage of audion VT4 is as this chip secondary drive circuit
Outfan, the base stage of audion VT3 is connected with the junction point of resistance R1 and resistance R2, the emitter stage of audion VT4 and control
The VCC pin of chip U1 is connected.
Further, described Drive Protecting Circuit is sent out with audion VT6's by audion VT5, audion VT6, negative pole
The electric capacity C9 that emitter-base bandgap grading is connected, positive pole is connected with the colelctor electrode of audion VT5, the resistance R18 being arranged in parallel with electric capacity C9, one
The resistance R19 that end is connected with the negative pole of electric capacity C9, the other end is connected with the base stage of audion VT5, positive pole and audion VT5
The electric capacity C10 that base stage is connected, negative pole emitter stage with audion VT5 after resistance R20 is connected, positive pole and audion
The electric capacity C11 that the base stage of VT6 is connected, negative pole positive pole with electric capacity C9 after resistance R17 is connected, one end and audion VT5
The slip that base stage is connected, the other end is connected with the negative pole of electric capacity C10, sliding end is connected with the positive pole of electric capacity C11 become
Resistance device RP3, and one end negative pole with electric capacity C10 after resistance R21 is connected, the other end is connected with the negative pole of electric capacity C11,
The slide rheostat RP4 composition that sliding end is connected with the colelctor electrode of audion VT6；Wherein, the colelctor electrode conduct of audion VT5
The input of this Drive Protecting Circuit, the negative pole of electric capacity C10 is as the outfan of this Drive Protecting Circuit, the collection of audion VT5
Electrode is connected with the junction point of resistance R1 and resistance R2, and the negative pole of electric capacity C10 is connected with the negative pole of electric capacity C6.
The present invention compared with prior art, has the following advantages and beneficial effect:
The present invention can improving product intelligent so that product can adjust chemicals dosing plant according to concrete Monitoring Data
Working strength, thus well overcome prior art cannot according to real needs add dose defect so that work people
Member, without adjusting chemicals dosing plant frequently, substantially increases the using effect of product, according to the storage volume of medicinal liquid, staff
7-15 talent need to go to add a medicament, is greatly saved the human cost of enterprise；By arranging chip secondary drive circuit, energy
Enough when power-supply fluctuation, chip U1 is compensated power supply so that chip U1 can keep running normally and using, and improves
The operation stability of system, its using effect improves 20%；Drive Protecting Circuit is set so that drive circuit runs more
Add steadily, it is to avoid the impact that drive system is caused by fluctuation occurs in power supply, improves the using effect of system, it is possible to extend system
The service life of system 2-3.
Accompanying drawing explanation
Fig. 1 is the circuit structure diagram of the intelligent dosing system of the present invention.
Fig. 2 is the circuit structure diagram of the chip secondary drive circuit of the present invention.
Fig. 3 is the circuit structure diagram of the Drive Protecting Circuit of the present invention.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Embodiment
As it is shown in figure 1, the present invention includes control chip U1, positive pole is connected with the THRES pin of control chip U1, negative pole
The electric capacity C4 being connected with the GND pin of control chip U1, positive pole is connected with the CONT pin of control chip U1, negative pole and control
The electric capacity C5 that the GND pin of coremaking sheet U1 is connected, the drive circuit being connected with control chip U1, it is connected with control chip U1
The signal input circuit connect, the power supply input circuit being connected with signal input circuit, the most defeated with control chip U1 and power supply
Enter the chip secondary drive circuit that circuit is connected, and the Drive Protecting Circuit being connected with drive circuit；Wherein, core is controlled
The model of sheet U1 is NE555.
Power supply input circuit by audion VT1, audion VT2, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5,
Resistance R6, electric capacity C1, electric capacity C2, diode D1, and Zener diode D2 form.
During connection, one end of resistance R1 is connected with the colelctor electrode of audion VT1, the other end after resistance R2 with audion
The colelctor electrode of VT2 is connected, and the P pole of diode D1 colelctor electrode with audion VT2 after resistance R3 is connected, N pole sequentially warp
After resistance R4 and resistance R5, the emitter stage with audion VT2 is connected, and electric capacity C1 is arranged in parallel with resistance R3, Zener diode D2
N pole be connected with the junction point of resistance R4 and resistance R5, P pole base stage with audion VT1 after resistance R6 is connected, electric capacity
C2 is arranged in parallel with Zener diode D2.
Wherein, the emitter stage of audion VT1 is connected with the base stage of audion VT2, the P pole of Zener diode D2 and electric capacity
The negative pole of C4 is connected, and the base stage of the junction point of resistance R1 and resistance R2 and audion VT1 forms the electricity of this power supply input circuit
Source input.
Signal input circuit is by slide rheostat RP1, slide rheostat RP2, electric capacity C3, resistance R7, resistance R8, Yi Ji electricity
Resistance R9 composition.
During connection, the negative pole of electric capacity C3 is connected with the positive pole of electric capacity C4, positive pole after slide rheostat RP2 with electric capacity C4
Negative pole be connected, one end of resistance R8 is connected with the positive pole of electric capacity C3, the other end after resistance R7 with control chip U1's
TRIG pin is connected, and one end of resistance R9 is connected with VCC pin and the RESET pin of control chip U1 simultaneously, the other end
After slide rheostat RP1, the junction point with resistance R7 and resistance R8 is connected.
Wherein, the negative pole of electric capacity C3 is connected with TRIG pin and the THRES pin of control chip U1 simultaneously, resistance R9 and
The junction point of slide rheostat RP1 is connected with the N pole of diode D1, and the sliding end of slide rheostat RP1 is defeated as this signal
Enter the signal input part Vin of circuit.
Drive circuit is made up of bidirectional thyristor VS1, Teat pipette M, resistance R10, and electric capacity C6.
During connection, one end of resistance R10 is connected with the OUT pin of control chip U1, the other end and bidirectional thyristor VS1
Control pole be connected, the positive pole of electric capacity C6 is connected with the control pole of bidirectional thyristor VS1, negative pole and single file IGCT VS1
The second electrode be connected.
Wherein, the negative pole of electric capacity C6 is connected with the negative pole of electric capacity C5, the of one end of Teat pipette M and bidirectional thyristor VS1
One electrode is connected, the other end is connected with the junction point of resistance R1 and resistance R2.
As in figure 2 it is shown, chip secondary drive circuit is by audion VT3, audion VT4, inductance L1, diode D3, two poles
Pipe D4, diode D5, electric capacity C7, electric capacity C8, resistance R11, resistance R12, resistance R13, resistance R14, resistance R15, and resistance
R16 forms.
During connection, one end of resistance R12 is connected with the emitter stage of audion VT3, the base stage of the other end and audion VT3
Be connected, one end of resistance R11 is connected with the base stage of audion VT3, the other end after resistance R13 with the base of audion VT3
Pole is connected, and the positive pole of electric capacity C7 is connected with the base stage of audion VT3, negative pole is connected with the colelctor electrode of audion VT4, electricity
One end of resistance R14 is connected with the colelctor electrode of audion VT3, the other end is connected with the base stage of audion VT4, diode D3's
N pole is connected with the base stage of audion VT3, P pole junction point with resistance R11 and resistance R13 after diode D4 is connected, electricity
The positive pole holding C8 is connected with the P pole of diode D4, negative pole N pole with diode D4 after resistance R15 is connected, inductance L1's
One end is connected with the emitter stage of audion VT3, the other end is connected with the negative pole of electric capacity C7, the P pole of diode D5 and electric capacity
The negative pole of C7 is connected, N pole negative pole with electric capacity C8 after resistance R16 is connected.
Wherein, the N pole of diode D4 is connected with the P pole of diode D3, and the base stage of audion VT3 is as this chip two grades
The input of drive circuit, the emitter stage of audion VT4 as the outfan of this chip secondary drive circuit, audion VT3's
Base stage is connected with the junction point of resistance R1 and resistance R2, and the emitter stage of audion VT4 is connected with the VCC pin of control chip U1
Connect.
As it is shown on figure 3, Drive Protecting Circuit is by audion VT5, audion VT6, electric capacity C9, electric capacity C10, electric capacity C11, sliding
Dynamic rheostat RP3, slide rheostat RP4, resistance R17, resistance R18, resistance R19, resistance R20, and resistance R21 composition.
During connection, the negative pole of electric capacity C9 is connected with the emitter stage of audion VT6, the colelctor electrode of positive pole and audion VT5
Being connected, resistance R18 is arranged in parallel with electric capacity C9, and one end of resistance R19 is connected with the negative pole of electric capacity C9, the other end and three poles
The base stage of pipe VT5 is connected, the positive pole of electric capacity C10 is connected with the base stage of audion VT5, negative pole after resistance R20 with three poles
The emitter stage of pipe VT5 is connected, the positive pole of electric capacity C11 is connected with the base stage of audion VT6, negative pole after resistance R17 with electricity
The positive pole holding C9 is connected, and one end of slide rheostat RP3 is connected with the base stage of audion VT5, the other end and electric capacity C10
Negative pole is connected, sliding end is connected with the positive pole of electric capacity C11, one end of slide rheostat RP4 after resistance R21 with electric capacity
The negative pole of C10 is connected, the other end is connected with the negative pole of electric capacity C11, sliding end is connected with the colelctor electrode of audion VT6.
Wherein, the colelctor electrode of audion VT5 is as the input of this Drive Protecting Circuit, and the negative pole of electric capacity C10 is as this
The outfan of Drive Protecting Circuit, the colelctor electrode of audion VT5 is connected with the junction point of resistance R1 and resistance R2, electric capacity C10
Negative pole be connected with the negative pole of electric capacity C6.
During work, power supply is connected on the power input of native system, and by the signal output part of corresponding sensor
Being connected on the signal input part of native system, the concentration at sensor measurement to corresponding need material to be processed reaches preset value
Time just can trigger control chip U1 so that the OUT pin output electric current of control chip U1, and then conducting bidirectional thyristor VS1 makes
Obtain the work of the Teat pipette M in chemicals dosing plant and in treatment tank, pump into corresponding treatment agent, needing material to be processed
Concentration controls Teat pipette M less than control chip U1 after preset value and quits work, thus completes the process of whole dosing.Using
Time, the preset value of system can be changed by adjusting the sliding end of slide rheostat RP1, control chip U1 will be defeated according to signal
The signal intensity entering the upper input of end controls the working strength of Teat pipette M, thus has reached the purpose of automatic adjustment product chemical feeding quantity.
So, the present invention can improving product intelligent so that product can adjust according to concrete Monitoring Data and add
The working strength of medicine device, thus well overcome prior art and cannot add the defect of dose according to real needs so that
Staff, without adjusting chemicals dosing plant frequently, substantially increases the using effect of product, according to the storage volume of medicinal liquid, work
Make personnel 7-15 talent need to go to add a medicament, be greatly saved the human cost of enterprise；By arranging chip secondary drive
Circuit, it is possible to chip U1 is compensated power supply when power-supply fluctuation so that chip U1 can keep running normally and using,
Improve the operation stability of system, its using effect improves 20%；Drive Protecting Circuit is set so that drive circuit is transported
Row more steady, it is to avoid the impact that drive system is caused by fluctuation occurs in power supply, improves the using effect of system, it is possible to
The service life of prolongation system 2-3.
As it has been described above, just can well realize the present invention.
Claims (7)
1. sewage disposal protection drives intelligent dosing system, it is characterised in that: include control chip U1, positive pole and control chip U1
The electric capacity C4 that THRES pin is connected, negative pole is connected with the GND pin of control chip U1, positive pole and control chip U1's
The electric capacity C5 that CONT pin is connected, negative pole is connected with the GND pin of control chip U1, with driving that control chip U1 is connected
Galvanic electricity road, the signal input circuit being connected with control chip U1, the power supply input circuit being connected with signal input circuit, with
Time the chip secondary drive circuit that is connected with control chip U1 and power supply input circuit, and driving of being connected with drive circuit
Dynamic protection circuit；Wherein, the model of control chip U1 is NE555.
Sewage disposal the most according to claim 1 protection drives intelligent dosing system, it is characterised in that: described chip two grades
Drive circuit is by audion VT3, audion VT4, and one end is connected with the emitter stage of audion VT3, the other end and audion VT3
The resistance R12 that is connected of base stage, one end is connected with the base stage of audion VT3, the other end after resistance R13 with audion
The resistance R11 that the base stage of VT3 is connected, positive pole is connected with the base stage of audion VT3, the colelctor electrode of negative pole and audion VT4
The electric capacity C7 being connected, one end is connected with the colelctor electrode of audion VT3, the other end is connected with the base stage of audion VT4
Resistance R14, N pole is connected with the base stage of audion VT3, P pole after diode D4 with resistance R11 and the junction point of resistance R13
The diode D3 being connected, positive pole is connected with the P pole of diode D4, negative pole N with diode D4 after resistance R15 is extremely connected
The electric capacity C8 connect, the inductance L1 that one end is connected with the emitter stage of audion VT3, the other end is connected with the negative pole of electric capacity C7,
And the diode D5 composition that P pole is connected with the negative pole of electric capacity C7, N pole negative pole with electric capacity C8 after resistance R16 is connected；
Wherein, the N pole of diode D4 is connected with the P pole of diode D3, and the base stage of audion VT3 is as this chip secondary drive circuit
Input, the emitter stage of audion VT4 is as the outfan of this chip secondary drive circuit.
Sewage disposal the most according to claim 2 protection drives intelligent dosing system, it is characterised in that: described driving is protected
Circuit is by audion VT5, audion VT6, and negative pole is connected with the emitter stage of audion VT6, the current collection of positive pole and audion VT5
The electric capacity C9 that pole is connected, the resistance R18 being arranged in parallel with electric capacity C9, one end is connected with the negative pole of electric capacity C9, the other end with
The resistance R19 that the base stage of audion VT5 is connected, positive pole is connected with the base stage of audion VT5, negative pole after resistance R20 with
The electric capacity C10 that the emitter stage of audion VT5 is connected, positive pole is connected with the base stage of audion VT6, negative pole is after resistance R17
The electric capacity C11 being connected with the positive pole of electric capacity C9, one end is connected with the base stage of audion VT5, the other end is negative with electric capacity C10's
The slide rheostat RP3 that pole is connected, sliding end is connected with the positive pole of electric capacity C11, and one end after resistance R21 with electric capacity
The negative pole of C10 is connected, the other end is connected with the negative pole of electric capacity C11, sliding end is connected with the colelctor electrode of audion VT6
Slide rheostat RP4 forms；Wherein, the colelctor electrode of audion VT5 as the input of this Drive Protecting Circuit, electric capacity C10's
Negative pole is as the outfan of this Drive Protecting Circuit.
Sewage disposal the most according to claim 3 protection drives intelligent dosing system, it is characterised in that: described power supply inputs
Circuit by audion VT1, audion VT2, one end is connected with the colelctor electrode of audion VT1, the other end after resistance R2 with three
Resistance R1, the P pole that the colelctor electrode of pole pipe VT2 is connected colelctor electrode with audion VT2 after resistance R3 is connected, N pole sequentially
Through the diode D1 that resistance R4 emitter stage with audion VT2 after resistance R5 is connected, the electric capacity being arranged in parallel with resistance R3
C1, N pole is connected with the junction point of resistance R4 and resistance R5, P pole is steady with what the base stage of audion VT1 was connected after resistance R6
Pressure diode D2, and the electric capacity C2 composition being arranged in parallel with Zener diode D2；Wherein, the emitter stage and three of audion VT1
The base stage of pole pipe VT2 is connected, and the P pole of Zener diode D2 is connected with the negative pole of electric capacity C4, resistance R1 and the company of resistance R2
The base stage of contact and audion VT1 forms the power input of this power supply input circuit.
Sewage disposal the most according to claim 4 protection drives intelligent dosing system, it is characterised in that: described signal inputs
The electricity that circuit is connected by the positive pole of negative pole with electric capacity C4, positive pole negative pole with electric capacity C4 after slide rheostat RP2 is connected
Holding C3, one end is connected with the positive pole of electric capacity C3, the other end is connected with the TRIG pin of control chip U1 after resistance R7
Resistance R8, and one end is connected with VCC pin and the RESET pin of control chip U1 simultaneously, the other end is through slide rheostat
The resistance R9 composition that after RP1, junction point with resistance R7 and resistance R8 is connected；Wherein, the negative pole of electric capacity C3 simultaneously with control core
The TRIG pin of sheet U1 is connected with THRES pin, the junction point of resistance R9 and slide rheostat RP1 and the N pole of diode D1
Being connected, the sliding end of slide rheostat RP1 is as the signal input part Vin of this signal input circuit.
Sewage disposal the most according to claim 5 protection drives intelligent dosing system, it is characterised in that: described drive circuit
By bidirectional thyristor VS1, Teat pipette M, one end is connected with the OUT pin of control chip U1, the other end and bidirectional thyristor VS1
Control the resistance R10 that is connected of pole, and positive pole is connected with the control pole of bidirectional thyristor VS1, negative pole and single file IGCT
The electric capacity C6 composition that second electrode of VS1 is connected；Wherein, the negative pole of electric capacity C6 is connected with the negative pole of electric capacity C5, Teat pipette M's
One end is connected with first electrode of bidirectional thyristor VS1, the other end is connected with the junction point of resistance R1 and resistance R2.
Sewage disposal the most according to claim 6 protection drives intelligent dosing system, it is characterised in that: described audion
The base stage of VT3 is connected with the junction point of resistance R1 and resistance R2, the VCC pipe of the emitter stage of audion VT4 and control chip U1
Foot is connected, and the colelctor electrode of audion VT5 is connected with the junction point of resistance R1 and resistance R2, the negative pole of electric capacity C10 and electric capacity
The negative pole of C6 is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610499316.9A CN106054725A (en) | 2016-06-29 | 2016-06-29 | Drive protection type intelligent dosing system for sewage treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610499316.9A CN106054725A (en) | 2016-06-29 | 2016-06-29 | Drive protection type intelligent dosing system for sewage treatment |
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| CN106054725A true CN106054725A (en) | 2016-10-26 |
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| CN201610499316.9A Pending CN106054725A (en) | 2016-06-29 | 2016-06-29 | Drive protection type intelligent dosing system for sewage treatment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107612506A (en) * | 2017-09-29 | 2018-01-19 | 苏州星阁星诚机电工程有限公司 | FM modulation circuits based on base chip when 555 |
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2016
- 2016-06-29 CN CN201610499316.9A patent/CN106054725A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107612506A (en) * | 2017-09-29 | 2018-01-19 | 苏州星阁星诚机电工程有限公司 | FM modulation circuits based on base chip when 555 |
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Application publication date: 20161026 |