Ozone reverse electrode circuit and ozone generator

Abstract

The utility model discloses an ozone reverse electrode circuit and an ozone generator, which belong to the technical field of water electrolysis ozone production, and comprise a main control unit, a power supply unit, a relay unit, a filtering unit, a switch unit and an ozone electrode, the power supply unit, the relay unit and the switch unit are all connected with the main control unit, and the ozone electrode is connected with the main control unit. The main control unit controls the relay unit to act, the relay unit is connected with the filtering unit, the filtering unit is connected with the ozone electrode, the ozone generator further comprises a reversing circuit, the reversing circuit is arranged between the relay unit and the filtering unit, and by changing and switching the state of electrode current, the ozone electrode is connected with the relay unit. The electrode current changes smoothly, and short zero input time occurs in the middle, so that the ozone electrode is prevented from being impacted by instantaneous current, and the electrolytic efficiency of the ozone electrode is stable.

Description

Technical Field

[0001] The utility model relates to the technical field of ozone production by electrolyzing water, in particular to an ozone reversal circuit and an ozone generator. Background Art

[0002] Ozone generator is the core component of water electrolysis to produce ozone. The existing low-voltage electrolysis to produce ozone is mainly based on PEM electrolysis. Compared with the high-frequency and high-voltage corona method, the efficiency of PEM electrolysis to produce ozone is higher. In practical applications, the life of ozone generators using PEM electrolysis is limited by the structure of the electrolytic cell, the material of the electrode sheet and the reversal circuit. Some ozone generators do not have the reversal function, so that only the anode of the ozone electrode will produce ozone during operation. Ozone is corrosive to the electrode. Long-term operation will make the electrode unable to work, shortening the service life of the electrode. Another part of the ozone generators that can achieve the reversal function only use relays to achieve the function of switching electrodes. When switching the ozone electrode, the relay generates a huge instantaneous current, so that the port originally at the output will be injected with current into the output port at the moment of reversal, causing the output port to overload and burn out, and also damaging the control circuit. In addition, the moment of reversal will cause local overheating, which is easy to damage the ozone electrode and membrane. In addition, due to the built-in electric field and ozone concentration difference at the ozone electrode, the efficiency of electrolysis to produce ozone will be reduced in a short time during reversal. Therefore, there is an urgent need for a control circuit that can solve the problem of ozone reversal momentarily damaging the ozone generator.

[0003] The existing patent application with publication number CN113862698A discloses a plate electrode ozone generator with cathode reversal descaling, which includes an electrolytic cell composed of an electrolytic cell shell, an anode, a cathode, and an auxiliary electrode, and a control circuit. The anode is composed of multiple anode plates and connected to the anode conductive plate, and the cathode is composed of multiple cathode plates and connected to the cathode conductive plate. The anode, cathode, and auxiliary electrode are respectively connected to the electrolytic cell shell through anode conductive screws, cathode conductive screws, and auxiliary electrode conductive screws. The control circuit includes a power module, a control module, and a reversal control module. The power module is respectively connected to the control module and the reversal control module. The reversal control module is connected to the anode, cathode, and auxiliary electrode. The ozone generator will generate an instantaneous large current during reversal, which is easy to damage the ozone generation. Utility Model Content

[0004] One of the purposes of the utility model is to provide an ozone reversal circuit, which solves the problem that a large current will be generated at the moment of ozone reversal.

[0005] In order to achieve the above utility model purpose, the technical solution adopted by the utility model is as follows:

[0006] An ozone inversion circuit comprises a main control unit, a power supply unit, a relay unit, a filter unit, a switch unit and an ozone electrode, wherein the power supply unit, the relay unit and the switch unit are all connected to the main control unit, the main control unit controls the action of the relay unit, the relay unit is connected to the filter unit, the filter unit is connected to the ozone electrode, and further comprises a commutation circuit 1, the commutation circuit 1 is arranged between the relay unit and the filter unit, the commutation circuit 1 comprises a first relay KR1, a second relay KR2, a diode D3, a double-control switch 11, a transistor Q1, a first inductance element R19 and a second inductance element R28, the first relay KR1 and the second relay KR2 are respectively connected to the double-control switch to control the commutation of the double-control switch, the first relay KR1 and one end of the second relay KR2 are connected in series, one end of the first relay KR1 is connected to the power supply, the other end of the second relay KR2 is connected to the collector of the transistor Q1, one end of the first inductance element R19 is connected to the relay unit, and the other end is connected to the base of the transistor Q1, the emitter of the transistor Q1 is grounded, one end of the second inductance element R28 is connected to the other end of the first inductance element R19, and the other end is grounded to the emitter of the transistor Q1, the diode D3 is connected in parallel with the circuit composed of the first relay KR1 and the second relay KR2, and by changing the state of the switching electrode current, the electrode current changes smoothly and there will be a short zero input time in the middle, which prevents the ozone electrode from being subjected to instantaneous current shock and ensures the stability of the electrolysis efficiency of the ozone electrode.

[0007] Furthermore, the double-control switch 11 includes a first single-pole double-throw switch JK1, a second single-pole double-throw switch JK2 and an electrode power supply, one end of the first single-pole double-throw switch JK1 is connected to one end of the filter unit, and the other end can be switched between the positive and negative poles of the electrode power supply, one end of the second single-pole double-throw switch JK2 is connected to the other end of the filter unit, and the other end can be switched between the positive and negative poles of the electrode power supply, the first relay KR1 controls the first single-pole double-throw switch JK1, and the second relay KR2 controls the second single-pole double-throw switch JK2, and the circuit switching is performed by two single-pole double-throw switches, and the switching process is easy to control.

[0008] Preferably, the relay unit is also connected to a first stabilization circuit 12, which includes a third inductance element L1, a first capacitor C7 and a second capacitor CY1, the first capacitor C7 and the second capacitor CY1 are connected in parallel between the relay unit and the power supply, one end of the third inductance element L1 is connected to the relay unit, and the other end is connected to a parallel circuit formed by the first capacitor C7 and the second capacitor CY1, so that the signal current input to the commutation circuit is stable, thereby protecting the commutation circuit.

[0009] Preferably, it further comprises a sensor unit, wherein the sensor unit is connected to the main control unit and is used for inputting a sensor signal to the main control unit.

[0010] More preferably, the sensor unit is also connected to a second stabilization circuit 13, the second stabilization circuit 13 includes a third capacitor C12, a fourth capacitor C11 and a first resistor R29, the first end of the sensor unit is connected to a power supply, one end of the third capacitor C12 is connected to the first end of the sensor unit, and the other end is grounded, the second end of the sensor unit is grounded to the third capacitor C12, the signal output end of the sensor unit is connected to the main control unit, the first resistor R29 is arranged between the signal output end of the sensor unit and the main control unit, one end of the fourth capacitor C11 is connected to the first resistor R29, and the other end is grounded to the third capacitor C12, so that the signal output by the sensor unit is stable.

[0011] Preferably, the switch unit comprises a second resistor R34, and the second resistor R34 is arranged between the switch unit and the main control unit to play a protective role.

[0012] More preferably, it also includes an indicator light unit, which is connected to the main control unit, and the indicator light unit includes a first indicator light LED1, a second indicator light LED2, a third indicator light LED3, a fifth capacitor R22, a sixth capacitor R23 and a seventh capacitor R24, the input end of the first indicator light LED1 is connected to one end of the fifth capacitor R22, and the other end of the fifth capacitor R22 is connected to the indicator light unit, the input end of the second indicator light LED2 is connected to one end of the sixth capacitor R23, and the other end of the sixth capacitor R23 is connected to the indicator light unit, the input end of the third indicator light LED3 is connected to one end of the seventh capacitor R24, and the other end of the seventh capacitor R24 ​​is connected to the indicator light unit, for indicating the gear state of the ozone electrode.

[0013] Preferably, it further comprises a shift unit, which is connected to the main control unit and is used to change the output power of the ozone electrode.

[0014] More preferably, the shift unit includes an eighth capacitor R25, a ninth capacitor R26 and a tenth capacitor R27, the eighth capacitor R25 is arranged between the first end of the shift unit and the signal source, the ninth capacitor R26 is arranged between the second end of the shift unit and the signal source, and the tenth capacitor R27 is arranged between the third end of the shift unit and the signal source, so that the input of the shift signal is stable.

[0015] The second purpose of the utility model is to provide an ozone generator, which solves the problem that the ozone generator will be damaged by the instantaneous reversal of ozone.

[0016] In order to achieve the above utility model purpose, the technical solution adopted by the utility model is as follows:

[0017] An ozone generator comprises the ozone inversion circuit, which prolongs the service life of the ozone electrode.

[0018] The beneficial effects of the utility model are:

[0019] (1) The ozone reversing circuit is provided with a commutation circuit, which is arranged between the relay unit and the filter unit. The filter unit can filter the current input to the ozone electrode. When the ozone electrode is working, the input current is stable and the efficiency of ozone electrolysis is high. The commutation circuit is provided with a double-control switch controlled by a relay. The control circuit of the double-control switch is controlled by a transistor. The control signal of the transistor is input by the relay unit. Two inductance elements are connected to the base of the transistor respectively. One of the inductances is used to delay the input of the current to prevent the instantaneous on and off of the transistor from causing an instantaneous large current. The other inductance can delay the reduction of the current when the transistor is turned off to prevent the formation of an instantaneous large current when the transistor is turned off. When the ozone electrode is in the reversing control, no instantaneous current will appear, which prevents the instantaneous current from damaging the electrode and the membrane. In addition, by setting the delay time, the ozone in the electrode cavity can have sufficient reaction time to ensure the stability of the electrolysis efficiency when switching the electrode.

[0020] (2) The relay unit on the ozone reversing circuit includes a stabilizing circuit. The stabilizing circuit can filter the current of the power supply through a parallel inductor element to prevent the unstable input current from causing the output current fluctuation of the relay, thereby damaging the reversing circuit and improving the service life of the ozone generator. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A system diagram of an ozone reversal circuit provided by the utility model;

[0022] Figure 2 A commutation circuit diagram provided by the utility model;

[0023] Figure 3The input circuit diagram of the relay unit provided by the utility model;

[0024] Figure 4 The input and output circuit diagram of the sensor unit provided by the utility model;

[0025] Figure 5 The output circuit diagram of the switch unit provided by the utility model;

[0026] Figure 6 An output circuit diagram of the indicator light unit provided by the utility model;

[0027] Figure 7 The output circuit diagram of the shift unit provided by the utility model;

[0028] Figure 8 This is a waveform diagram of the conversion of the inverting circuit provided by the utility model.

[0029] Reference numerals:

[0030] 1. Commutation circuit; 11. Double control switch; 12. Stabilization circuit; 13. Stabilization circuit. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Embodiment 1

[0033] like Figure 1-Figure 8As shown, this embodiment discloses an ozone inversion circuit, including a main control unit, a power supply unit, a relay unit, a filter unit, a switch unit and an ozone electrode. The power supply unit, the relay unit and the switch unit are all connected to the main control unit. The main control unit controls the action of the relay unit. The relay unit is connected to the filter unit. The filter unit is connected to the ozone electrode. The ozone electrode is used to directly electrolyze water to generate ozone. It also includes a commutation circuit 1. The commutation circuit 1 is arranged between the relay unit and the filter unit. The commutation circuit 1 is used to output a signal current for switching the direction of the ozone electrode. The commutation circuit 1 includes a first relay KR1, a second relay KR2, a diode D3, a double-control switch 11, a transistor Q1, a first inductance element R19 and a second inductance element R28. The first relay KR1 and the second relay KR2 are respectively connected to the double-control switch to control the commutation of the double-control switch. One end of the first relay KR1 and the second relay KR2 are connected in series. One end of the first relay KR1 is connected to the power supply, and the other end of the second relay KR2 is connected to the collector of the transistor Q1. The first inductance element R19 is connected to the collector of the transistor Q1. One end of the element R19 is connected to the relay unit, and the other end is connected to the base of the transistor Q1. The emitter of the transistor Q1 is grounded. One end of the second inductor element R28 is connected to the other end of the first inductor element R19, and the other end is grounded to the emitter of the transistor Q1. The diode D3 is connected in parallel with the circuit composed of the first relay KR1 and the second relay KR2. The diode D3 is used to prevent the power supply or the current from the relay unit from flowing back and damaging the components in the commutation circuit. The signal current output by the relay unit enters the base of the transistor Q1 through the first inductor element R19, so that the transistor Q1 is open. At this time, the first relay KR1 and the second relay KR2 are energized to open the double-control switch 11, and the current changes smoothly through the first inductor element R19. After the relay unit stops outputting the signal current, the second inductor element R28 reversely inputs current to the base of the transistor Q1, so that the current decreases smoothly. The switching output current of the double-control switch 11 to the ozone electrode transitions smoothly and there will be a short zero output state, so that the water at the ozone electrode has time to restore balance.

[0034] Furthermore, the double-control switch 11 includes a first single-pole double-throw switch JK1, a second single-pole double-throw switch JK2 and an electrode power supply. One end of the first single-pole double-throw switch JK1 is connected to one end of the filter unit, and the other end can be switched between the positive and negative poles of the electrode power supply. One end of the second single-pole double-throw switch JK2 is connected to the other end of the filter unit, and the other end can be switched between the positive and negative poles of the electrode power supply. The first relay KR1 controls the first single-pole double-throw switch JK1, and the second relay KR2 controls the second single-pole double-throw switch JK2. The output current switching is stable and reliable through the combination of two single-pole double-throw switches, and the time of the switching process can be controlled.

[0035] Preferably, the relay unit is also connected to the first stabilization circuit 12, which includes a third inductance element L1, a first capacitor C7 and a second capacitor CY1. The first capacitor C7 and the second capacitor CY1 are connected in parallel between the relay unit and the power supply. One end of the third inductance element L1 is connected to the relay unit, and the other end is connected to the parallel circuit formed by the first capacitor C7 and the second capacitor CY1. The first capacitor C7 and the second capacitor CY1 form a parallel filter circuit. The current from the power supply passes through the filter circuit and then passes through the third inductance L1 to prevent the generation of instantaneous large current to damage the relay unit, so that the current signal input to the relay is stable.

[0036] Preferably, it further comprises a sensor unit, which is connected to the main control unit and is used to detect the concentration or temperature of generated ozone.

[0037] More preferably, the sensor unit is also connected to a second stabilization circuit 13, the second stabilization circuit 13 includes a third capacitor C12, a fourth capacitor C11 and a first resistor R29, the first end of the sensor unit is connected to the power supply, one end of the third capacitor C12 is connected to the first end of the sensor unit, and the other end is grounded, the second end of the sensor unit and the third capacitor C12 share a common ground, the signal output end of the sensor unit is connected to the main control unit, the first resistor R29 is arranged between the signal output end of the sensor unit and the main control unit, one end of the fourth capacitor C11 is connected to the first resistor R29, and the other end is grounded to the third capacitor C12, the third capacitor C12 is used to filter out current fluctuations from the power supply, the first resistor R29 plays a role in stabilizing the input signal current, and the fourth capacitor C11 is used to filter out unstable signal current.

[0038] Preferably, the switch unit includes a second resistor R34, which is arranged between the switch unit and the main control unit. The switch unit is used to control the start and stop of the ozone electrode. The second resistor R34 stabilizes the input current and can prevent surges and other damage to the circuit.

[0039] Preferably, it also includes an indicator light unit, which is connected to the main control unit. The indicator light unit includes a first indicator light LED1, a second indicator light LED2, a third indicator light LED3, a fifth capacitor R22, a sixth capacitor R23 and a seventh capacitor R24. The input end of the first indicator light LED1 is connected to one end of the fifth capacitor R22, and the other end of the fifth capacitor R22 is connected to the indicator light unit. The input end of the second indicator light LED2 is connected to one end of the sixth capacitor R23, and the other end of the sixth capacitor R23 is connected to the indicator light unit. The input end of the third indicator light LED3 is connected to one end of the seventh capacitor R24, and the other end of the seventh capacitor R24 ​​is connected to the indicator light unit.

[0040] Furthermore, preferably, a shift unit is also included, which is connected to the main control unit. The current input to the ozone electrode can be adjusted through the shift unit, and the power of the ozone electrode for electrolyzing water can be changed, thereby playing a role in controlling the gear position.

[0041] Furthermore, the shift unit includes an eighth capacitor R25, a ninth capacitor R26 and a tenth capacitor R27, the eighth capacitor R25 is arranged between the first end of the shift unit and the signal source, the ninth capacitor R26 is arranged between the second end of the shift unit and the signal source, and the tenth capacitor R27 is arranged between the third end of the shift unit and the signal source. Specifically, the shift unit has three levels, each level corresponds to a signal input point of the main control unit, and a capacitor is provided on each signal input. The capacitor can filter out unstable input signals, thereby preventing the circuit from jittering.

[0042] See also Figure 8 The above figure is a waveform diagram of the working process of the ozone reversal circuit mentioned in the background technology. The waveform is a square wave. The electrode is replaced instantly between the peak and the trough. An instantaneous large current will be generated on the electrode, which is easy to damage the electrode and the circuit. The figure below is a waveform diagram generated by the ozone reversal circuit in the present application. In the process of current commutation, it takes a certain amount of time for the current to change from large to small. Specifically, when the cathode and anode of the electrolysis reaction are performing current commutation, the current thereon weakens at 0-0.5s and decreases to zero at 0.5-1s, so that the water at the electrode is in a static state. At 1-2s, the current is increased again. By extending the commutation time of the electrode, the instantaneous current is prevented from forming an impact. The water environment at the electrode is restored to balance through a short period of static state, which plays a role in extending the service life of the electrode and ensuring the efficient production of ozone by electrolysis of water.

[0043] Embodiment 2

[0044] This embodiment also discloses an ozone generator, including an ozone reversal circuit, which can extend the service life of the ozone generator.

[0045] According to the disclosure and teaching of the above description, the technical personnel in the field of the utility model can also change and modify the above implementation. Therefore, the utility model is not limited to the specific implementation methods disclosed and described above, and some modifications and changes of the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the utility model.

Claims

1. An ozone inversion circuit, comprising a main control unit, a power supply unit, a relay unit, a filter unit, a switch unit and an ozone electrode, wherein the power supply unit, the relay unit and the switch unit are all connected to the main control unit, the main control unit controls the action of the relay unit, the relay unit is connected to the filter unit, and the filter unit is connected to the ozone electrode, characterized in that: The invention also comprises a commutation circuit (1), wherein the commutation circuit (1) is arranged between the relay unit and the filter unit, and the commutation circuit (1) comprises a first relay KR1, a second relay KR2, a diode D3, a double-control switch (11), a transistor Q1, a first inductance element R19 and a second inductance element R28, wherein the first relay KR1 and the second relay KR2 are respectively connected to the double-control switch to control the commutation of the double-control switch, one end of the first relay KR1 and the second relay KR2 are connected in series, and the first relay KR1 is connected to the second relay KR2. One end of the electrical appliance KR1 is connected to a power supply, the other end of the second relay KR2 is connected to the collector of the transistor Q1, one end of the first inductance element R19 is connected to the relay unit, and the other end is connected to the base of the transistor Q1, the emitter of the transistor Q1 is grounded, one end of the second inductance element R28 is connected to the other end of the first inductance element R19, and the other end is grounded to the emitter of the transistor Q1, and the diode D3 is connected in parallel with the circuit composed of the first relay KR1 and the second relay KR2.

2. The ozone inversion circuit according to claim 1, characterized in that: The double-control switch (11) comprises a first single-pole double-throw switch JK1, a second single-pole double-throw switch JK2 and an electrode power supply, wherein one end of the first single-pole double-throw switch JK1 is connected to one end of the filter unit, and the other end can be switched between the positive and negative poles of the electrode power supply, one end of the second single-pole double-throw switch JK2 is connected to the other end of the filter unit, and the other end can be switched between the positive and negative poles of the electrode power supply, the first relay KR1 controls the first single-pole double-throw switch JK1, and the second relay KR2 controls the second single-pole double-throw switch JK2.

3. The ozone inversion circuit according to claim 2, characterized in that: The relay unit is also connected to a first stabilizing circuit (12), the first stabilizing circuit (12) comprising a third inductor element L1, a first capacitor C7 and a second capacitor CY1, the first capacitor C7 and the second capacitor CY1 being connected in parallel between the relay unit and a power source, one end of the third inductor element L1 being connected to the relay unit, and the other end being connected to a parallel circuit formed by the first capacitor C7 and the second capacitor CY1.

4. The ozone inversion circuit according to claim 3, characterized in that: It also includes a sensor unit, which is connected to the main control unit.

5. The ozone inversion circuit according to claim 4, characterized in that: The sensor unit is also connected to a second stabilizing circuit (13), the second stabilizing circuit (13) comprising a third capacitor C12, a fourth capacitor C11 and a first resistor R29, the first end of the sensor unit is connected to a power supply, one end of the third capacitor C12 is connected to the first end of the sensor unit, and the other end is grounded, the second end of the sensor unit shares a common ground with the third capacitor C12, the signal output end of the sensor unit is connected to the main control unit, the first resistor R29 is arranged between the signal output end of the sensor unit and the main control unit, one end of the fourth capacitor C11 is connected to the first resistor R29, and the other end shares a common ground with the third capacitor C12.

6. The ozone inversion circuit according to claim 5, characterized in that: The switch unit includes a second resistor R34, and the second resistor R34 is arranged between the switch unit and the main control unit.

7. The ozone inversion circuit according to claim 1, characterized in that: It also includes an indicator light unit, which is connected to the main control unit. The indicator light unit includes a first indicator light LED1, a second indicator light LED2, a third indicator light LED3, a fifth capacitor R22, a sixth capacitor R23 and a seventh capacitor R24. The input end of the first indicator light LED1 is connected to one end of the fifth capacitor R22, and the other end of the fifth capacitor R22 is connected to the indicator light unit. The input end of the second indicator light LED2 is connected to one end of the sixth capacitor R23, and the other end of the sixth capacitor R23 is connected to the indicator light unit. The input end of the third indicator light LED3 is connected to one end of the seventh capacitor R24, and the other end of the seventh capacitor R24 ​​is connected to the indicator light unit.

8. The ozone inversion circuit according to claim 1, characterized in that: It also includes a shift unit, which is connected to the main control unit.

9. The ozone inversion circuit according to claim 8, characterized in that: The shift unit includes an eighth capacitor R25, a ninth capacitor R26 and a tenth capacitor R27, the eighth capacitor R25 is arranged between the first end of the shift unit and the signal source, the ninth capacitor R26 is arranged between the second end of the shift unit and the signal source, and the tenth capacitor R27 is arranged between the third end of the shift unit and the signal source.

10. An ozone generator, characterized in that: The invention comprises the ozone inversion circuit as described in any one of claims 1 to 9.

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