CN2247667Y - DC pulse power supply for ion water producer - Google Patents

Abstract

The utility model relates to a DC pulse power supply for an ion water producer, which is used for a circuit for operating and controlling water electrolysis intensity in an ion water producer. The utility model is mainly composed of a main loop, an operating loop and a water flow detecting loop, wherein, the water flow signal and the operating signal of the water flow detecting loop are conveyed to the operating loop, and after treatment, the operating loop sends out commands to control a BUZ450 switch of the main loop and the state of a relay; the output DC pulse of which the pulse width is adjustable drives an electrolytic slot to electrolyze. The utility model has the advantages of high electrolytic efficiency, constant PH value of the ion water, perfect fault protection, simple structure, and stable and reliable operation.

Description

The ionic water generator direct current pulse power source

The utility model relates to a kind of ionic water generator direct current pulse power source.This power supply is meant the circuit of the electrolysis strength that is used to operate and control water in the ionic water generator, detects and the circuit assembly of constant pH particularly including discharge.

The used power supply of producing both at home and abroad of ionic water generator is the conventional DC power supply at present; water flow failure detects and is the overheated detection of passive type; rely on detection electrolyzer heating situation to realize holding circuit when lack of water, this protected mode has a strong impact on the life-span of electrolyzer, especially influences airtight quality.Adopt plateau current in the electrolyzer of this conventional DC power supply power supply for the generation that suppresses side reaction, improve distribution of current, reconcile the mass transfer in liquid phase process, the control ionic bond is orientated does not all have effect.

The purpose of this utility model provides a kind of electrolytic efficiency height, and the pH value of ionized water is constant, and fault protection is perfect, and is simple in structure, the direct current pulse power source of reliable ionic water generator.

Direct current pulse power source described in the utility model detects loop four parts by master loop, control loop, operation circuit and current and forms.

Wherein master loop as shown in Figure 1, the alternating current 220V civil power is by rectifier bridge B and filter capacitor C4, resistance R O1 and switching tube BUZ450 join after testing again, are chopped into DC pulse into frequency and EDM Generator of Adjustable Duty Ratio at this, and JDC enters electrolyzer DJC through the control voltage directional relay.After feedback signal on the current sense resistor RO1 is isolated through photoelectrical coupler TL521, the input terminus that connects pulse-modulator TL494 by signaling point T, the modulation signal of TL494 output is simultaneously delivered to photoelectrical coupler TLP521 through signaling point S and is isolated, again through shaping rear drive switching tube BUZ450, the control signal U of rly. DJC is exported by analog switch MC14066: control loop as shown in Figure 2, mainly by unicircuit TL494, MC14066, NE555 forms, and the input terminus of analog switch MC14066 connects from Fig. 3 operation circuit polarity of electrode and electrolysis strength signal Q ₁, Q ₂, Q ₃, Q ₄Signal one tunnel after the processing is through resistance R ₄₂, signaling point U connects with Fig. 1 repeat circuit JDC, and another road is through resistance R ₅₅TL494 connects with pulse width modulator, triode S ₁₀, S ₁, S ₂Base input end connects with the level signal of the polarity of electrode of received signal points H, D, E respectively, and its emtting electrode output is joined with the NE555 input terminus, output after delay process signal through photodiode F ₁Send into pulse width modulator TL494, simultaneously also through signal Q ₅Join pulse width modulator TL494 input terminus and resistance R 55 and diode F with resistance R among Fig. 3 56 ₁Connect, pass through resistance R simultaneously ₁₁With the water-flow signal of received signal points R, join by the Faradaic current feedback signal of resistance R O7 acceptance point T, all signals pass through resistance R after treatment ₁₀Join by photoelectrical coupler TLP521 among signaling point S and Fig. 1; Operation circuit as shown in Figure 3, signaling point Q ₅Level signal connect triode S by resistance R 56 ₁₂Base stage, photodiode F ₁Indication fault is unusual, vernier switch K ₁, K ₂, K ₃, K ₄, K ₅Be polarity of electrode and electrolysis strength operated key, the level signal point A of correspondence in the time of key operation, B, C, D, E and R/S triggering device CD4044 input terminus join the signaling point Q after the output ₁, Q ₂, Q ₃, Q ₄Join synchronous signal point D, the level end of E and the resistance R among Fig. 2 with the analog switch MC14066 among Fig. 2 ₁₉, R ₂₀Join signaling point Q ₁, Q ₂, Q ₃, Q ₄Level signal pass through resistance R simultaneously ₂₈, R ₂₉, R ₃₀, R ₃₁With control triode S ₃, S ₄, S ₅, S ₆, S ₇Base stage is joined, and output directly connects photodiode F ₂, F ₃, F ₄, F ₅, F ₆The indication respective operations; Current detect the loop as shown in Figure 4, SL is the water ga(u)ge of water meter structure, shell material is the PVC plastics, the square ndfeb magnet of a pre-buried block length on central authorities' impeller shaft, and be stained with Hall element HR along water wheels radial magnetizing, the under meter SL shell wall outside, fail under current promote when leaf, when revolution moves a week, Hall element HR just sends a pulse, pulse meets device LM331 through capacitor C 7 with the F/V change and joins, send a 0-2.5V level signal after the output, and pass through signaling point R and send into pulse width modulator TL494, umber of pulse is by electric capacity E simultaneously ₂Control triode S ₁₁Electric capacity E is given in conducting ₃Charge, and send level signal to Fig. 2 resistance R by signaling point H ₈Control triode S10.

The utility model its major advantage compared with the prior art is: the electrolytic efficiency height, and the pH of ionized water is constant, and fault protection is perfect, and is simple in structure, reliable.

Description of drawings:

Fig. 1 is the master loop schematic diagram of this direct current pulse power source

Fig. 2 is the control loop schematic diagram of this direct current pulse power source

Fig. 3 is the operation circuit schematic diagram of this direct current pulse power source

Fig. 4 is that the current of this direct current pulse power source detect circuit theory figure

The following describes the working process and the principal feature of this direct current pulse power source:

This power supply comprises master loop, control loop, operation circuit and current detect the loop, wherein the operation signal of the water-flow signal in current detection loop and operation circuit control is sent into control loop, control loop sends the switch of switching tube BUZ450 that instruction controls master loop and the state of relay J DC after treatment, the adjustable pulsed drive electrolyzer of output dc pulse width carries out electrolysis, and its principal feature is:

1. adopt pulse power power supply, what obtain in electrolyzer is discrete type (discontinuous formula) electric current.Under pulse control, electrolytic electrode process becomes cycle pulsation process by original direct current process, and pulse power supply provides abundant harmonic current components for electrolyzer, and the harmonic excitation of this transient state also affects electrode process, constitutes the essence of pulse electrolysis.

2. pulse electrolysis is different with dc electrolysis: when 1. adopting pulse electrolysis, cathode surface has very high current density, and the big 3-5 of the comparable average current density of momentary current times, this makes ionic form speed greater than ionic bond speed.Simultaneously, the potential gradient of cathode surface is dynamic under impulsive condition, and is static under the DC condition, therefore, than much even under the DC condition, is easy to obtain good electrolysis effectiveness in the Potential distribution of impulsive condition like this; 2. the dc electrolysis mode mode of taking to change voltage is come constantly in load variations causes fluctuation of current, and like this, the life-span to the ion semi-permeable membranes in the electrolyzer when voltage is higher has a significant impact; And the pulse electrolysis mode, mode that adopt to reconcile the frequency of pulse and dutycycle is regulated electric current and is unlikely to produce too high voltages and life-span of influencing the ion semi-permeable membranes.

3. the pulse power mainly contains two aspects to the influence of electrolytic tank electrolysis process: 1. pulse electrolysis to the influence of mass transfer in liquid phase process is, when adopting the pulse power, will fluctuation near the sedimentary cationic concentration in cathode surface place with the effect of pulsed current, density loss when pulsed current is arranged, and during two interpulse no currents, go up, so just can not be as dc electrolysis, can form a stable diffusion layer, there is a pulse diffusion layer but be close to cathode surface, if spike pulse, because electricimpulse is short between the stopping time, the deposition positively charged ion that consumes in this pulse diffusion layer must be set up second diffusion layer by diffusion, and the thickness of this diffusion layer is the same with thickness of diffusion layer that dc electrolysis obtained under the identical power condition in essence.Between the turnoff time between two pulses, this diffusion process still exists, owing to do not consume positively charged ion during this period, this diffusion layer has caused pulsation diffusion cation concn to go up, more than the foundation of whole process the penetrating rate of ion that improves the ion semi-permeable membranes is highly profitable; 2. pulse electrolysis is to the distribution of current influence of electrolyzer, and current density and velocity of diffusion have following relation:

JP＝ZFNP

＝ZFD(ca-ce)δP

Z in the formula-cationic charge number

F-Faraday's number

D-spread coefficient

Ca-the stablize inner boundary concentration of diffusion layer

The interfacial concentration of negative electrode during Ce-end-of-pulsing

δ P-pulsation thickness of diffusion layer

More than can find out, even have under the very big situation, also can cause very big concentration gradient, thereby obtain very high current density, from electrolysis effectiveness, can be reflected as higher ionic concn and transmission efficiency in the concentration difference of pulsation diffusion layer.

4. adopt the conventional DC power supply, anhydrous flow detection device, the pH value of water outlet changes with the current size, and its water flow failure detects and is the overheated detection of passive type, when lack of water, rely on detection electrolyzer heating situation to realize holding circuit, this guarantor's expansion mode has a strong impact on the life-span of electrolyzer, also influences its airtight quality; This circuit is to flowing water size continuous detecting, and according to current size adjustment electric current, thereby constant pH.Automatically close master loop, Auto Power On after current recover to a certain degree the time when current are little.

Claims (1)

1. an ionic water generator direct current pulse power source is characterized in that this power supply by master loop, and control loop, operation circuit and current detect loop four parts to be formed, wherein:

The A master loop: the alternating current 220V civil power is by rectifier bridge B and filter capacitor C4, resistance R O1 and switching tube BUZ450 join after testing again, be chopped into DC pulse at this into frequency and EDM Generator of Adjustable Duty Ratio, JDC enters electrolyzer DJC through the control voltage directional relay, after feedback signal on the current sense resistor RO1 is isolated through photoelectrical coupler TLP521, the input terminus that connects pulse-modulator TL494 by signaling point T, the modulation signal of TL494 output is simultaneously delivered to photoelectrical coupler TLP521 through signaling point S and is isolated, through shaping rear drive switching tube BUZ450, the control signal U of rly. DJC is exported by analog switch MC14066 again;

The B control loop is mainly by unicircuit TL494, MC14066, and NE555 forms, and the input terminus of analog switch MC14066 connects from operation circuit electrode utmost point letter and electrolysis strength signal Q ₁, Q ₂, Q ₃, Q ₄, the signal one tunnel after the processing is through resistance R ₄₂, signaling point U connects with relay J DC, and another road is through resistance R ₅₅TL494 connects with pulse width modulator, triode S ₁₀, S ₁, S ₂Base input end connects with electropolar level signal of received signal points H, D, E respectively, and its emtting electrode output is joined with the NE555 input terminus, and output signal after delay process is sent into pulse width modulator TL494 through photodiode F1, also passes through resistance R simultaneously ₁₁With received signal points Q ₅With resistance R ₅₆Join pulse width modulator TL494 input terminus and resistance R ₅₅Connect with diode F1, join by the Faradaic current feedback signal of resistance R 07 received signal points T by the water-flow signal of resistance R 11 with received signal points R simultaneously, all signals pass through resistance R after treatment ₁₀Join by signaling point S and photoelectrical coupler TLP521;

C operation circuit: signaling point Q ₅Level signal pass through resistance R ₅₆Connect triode S ₁₂Base stage, photodiode F ₁Indication fault is unusual, vernier switch K ₁, K ₂, K ₃, K ₄, K ₅Be polarity of electrode and electrolysis strength operated key, the level signal of correspondence is joined the signaling point Q after the output by signaling point A, B, C, D, E and R/S triggering device CD4044 input terminus in the time of key operation ₁, Q ₂, Q ₃, Q ₄MC14066 joins with analog switch, level end and the resistance R of synchronous signal point D, E ₁₉, R ₂₀Join signaling point Q ₁, Q ₂, Q ₃, Q ₄Level signal pass through resistance R simultaneously ₂₈, R ₂₉, R ₃₀, R ₃₁With control triode S ₃, S ₄, S ₅, S ₆, S ₇Base stage is joined, and output directly connects photodiode F ₂, F ₃, F ₄, F ₅, F ₆The indication respective operations;

The D current detect the water ga(u)ge that loop: SL is the water meter structure, shell material is the PVC plastics, the square ndfeb magnet of a pre-buried block length on central authorities' impeller shaft, and be stained with Hall element HR along water wheels radial magnetizing, the under meter SL shell wall outside, fail under current promote when leaf, when revolution moves a week, Hall element HR just sends a pulse, pulse is joined with F/V umformer LM331 through capacitor C 7, send a 0-2.5V level signal after the output, and pass through signaling point R and send into pulse width modulator TL494, umber of pulse is by electric capacity E simultaneously ₂Control triode S ₁₁Electric capacity E is given in conducting ₃Charge, and send level signal to resistance R by signaling point H ₈Control triode S10.

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