TWI679309B - Submersible electrolytic ozone generator - Google Patents

Abstract

The cathode structure of the "submerged electrolytic ozone generator" of the present invention includes a lower reinforced titanium plate, a cathode frame with cathode water-guiding holes, a cathode conductive plate with water-guiding holes, a cathode conductive stud, and a cathode microporous titanium plate. , Cathode catalyst layer, proton exchange membrane, O-shaped seal ring; anode structure includes upper reinforced titanium plate, anode frame body, anode microporous titanium plate, anode catalyst layer with anode water conducting air holes; lower reinforced titanium plate, cathode frame body , Cathode conductive plate, O-ring seal, cathode microporous titanium plate, cathode catalyst layer, proton exchange membrane and anode catalyst layer, anode microporous titanium plate, anode frame, upper reinforced titanium plate, and fastened together. The structure of the invention is simple and practical, and the user is convenient to install and replace.

Description

Submersible electrolytic ozone generator

The invention discloses a submerged electrolytic ozone generator, which relates to a submerged electrolytic ozone generator using water as a raw material, and belongs to the technical field of electrolytic ozone generators.

At present, the electrolytic ozone generator using water as a raw material adopts an exterior structure. It has the following disadvantages: in some application fields, the installation and replacement of the external structure generator is relatively cumbersome, and a small amount of water will be discharged from the cathode, causing inconvenience to the user. Furthermore, the current power supply method of the electrolytic ozone generator using water as the raw material is temporary power supply when used, and instant power off when the device is stopped, or the generator continues to supply power. It has the following disadvantages: in many fields of application, the generator cannot continue to supply power. If an instant power-off method is used, hydrogen and oxygen ions accumulated on both sides of the membrane body in the instantaneous power-off structure will diffuse in opposite directions to form a reverse current. The reversely diffused hydrogen and oxygen ions will damage the catalyst layers of the anode and cathode, which will cause the service life of the generator to be greatly reduced, and eventually cause failure.

In view of this, the inventor specially researched and created the cost case, and hopes to use the proposal of this case to improve the existing shortcomings, so that this structure can be more perfect and ideal, and meet the actual needs.

In order to improve the foregoing defects, the submerged electrolytic ozone generator of the present invention aims to overcome the shortcomings of the existing technology, and further provides a simple and practical structure, which is convenient for users to install and replace, to realize a slow increase and a decrease in power supply, and to improve the occurrence A submerged electrolytic ozone generator with a long service life.

The invention can be achieved by the following measures: a submerged electrolytic ozone generator comprising a cathode structure and an anode structure, the cathode structure includes a lower reinforced titanium plate, an anode conductive stud is connected to the lower reinforced titanium plate, and a lower reinforced titanium plate A cathode frame is provided on the cathode frame. The cathode frame is provided with a cathode water-conducting air hole. The cathode frame is embedded with a cathode conductive plate. The cathode conductive plate is processed with a water-conducting air hole. The cathode conductive plate is connected with a cathode conductive stud. A cathode microporous titanium plate is provided on the plate, and a cathode catalyst layer is provided on the cathode microporous titanium plate. A proton exchange membrane is provided on the cathode catalyst layer, and an O-shaped seal ring is provided between the proton exchange membrane and the cathode frame; the anode structure The upper reinforced titanium plate is provided with an anode water-guiding hole. An anode frame is arranged under the upper reinforced titanium plate. An anode microporous titanium plate is arranged in the anode frame. An anode catalyst is arranged under the anode microporous titanium plate. Layer; lower reinforced titanium plate, cathode frame, cathode conductive plate, O-ring seal, cathode microporous titanium plate, cathode catalyst layer, proton exchange membrane and anode catalyst layer, anode microporous titanium plate The anode casing, the strengthening titanium fastened together by a screw.

In order to further achieve the purpose of the present invention, the cathode structure passes through the bottom of the electrolytic water bucket through the bottom of the electrolytic water bucket through the cathode conductive studs, and the anode structure passes through the bottom of the electrolytic water bucket through the bottom of the electrolytic water bucket and passes through the screw The cap is fastened; the cathode conductive stud and the anode conductive stud are connected to the generator power supply device.

In order to further achieve the purpose of the present invention, the generator power supply device includes an AC / DC power converter, a micro control chip MCU, and a constant current generating circuit; the AC / DC power converter is respectively connected to the micro control chip MCU and the constant current generating circuit The micro control chip MCU is connected to a constant current generating circuit, and the constant current generating circuit is connected to a cathode conductive stud and an anode conductive stud to an anode conductive stud.

In order to further achieve the purpose of the present invention, the constant current generating circuit includes a resistor R1 and a resistor R9 connected to the micro control chip MCU. The resistor R1 is connected to one end of the capacitor C2 and the base of the transistor N2, and the other end of the capacitor C2 is connected. The emitter of transistor N2, the collector of transistor N2 is connected to one end of resistor R4, the other end of resistor R4 is connected to one end of capacitor C3 and one end of resistor R5, two pins of step-down DC power conversion chip U2, and the other end of capacitor C3 One end and the other end of the resistor R5 are respectively connected to the emitter of the transistor N2, one end of the capacitor C1, and the two pins of the integrated operational amplifier U1. The two pins of the step-down DC power conversion chip U2 are respectively connected to the negative electrode of the diode D7 and the resistor R6. One end of the step-down DC power conversion chip U2 is connected to one end of the capacitor C5, one end of the capacitor C4, one end of the electrolytic capacitor E1, and one end of the inductor ID2. The four-step of the step-down DC power conversion chip U2 is connected to the capacitor. At the other end of C5, 3 pins of the step-down DC power conversion chip U2 are connected to one end of the resistor R7, the negative pole of the voltage regulator diode D6, one end of the inductor ID4, and the other end of the resistor R7. Connect one end of capacitor C6, and the other end of inductor ID4 to one end of capacitor C7, one end of electrolytic capacitor E2, the other end of resistor R6, one end of capacitor C8, one end of electrolytic capacitor E3, the other end of electrolytic capacitor E1, and capacitor C4 The other end of the step-down DC power conversion chip U2, the other end of the capacitor C6, voltage stabilization The anode of diode D6, the other end of capacitor C7, the other end of electrolytic capacitor E2, and one end of resistor R8, the other end of resistor R8, one pin of integrated operational amplifier U1, the other end of capacitor C8, and the electrolytic capacitor E3 The other end is connected to the moving contact of relay JD1; the 5 pin of the integrated operational amplifier U1 is connected to the other end of the inductor ID2 and the other end of the capacitor C1, and the 4 pin of the integrated operational amplifier U1 is connected to the anode of the diode D7 and the potentiometer RV1. At one end, the 3 pin of the integrated operational amplifier U1 is connected to one end of resistor R3 and one end of resistor R2, and the other end of potentiometer RV1 is connected to the other end of resistor R2; the other end of resistor R9 is connected to one end of capacitor C19 and the base of transistor N1 The other end of capacitor C19 is connected to the emitter of triode N1, the collector of triode N1 is connected to one end of the coil of relay JD1, the normally open point of relay JD1 is connected to the cathode of ozone generator OG, and the anode of ozone generator OG is connected to the electrolytic capacitor One end of E3.

Compared with the prior art, the present invention has the following positive effects: since the electrolytic ozone generator of the present invention has a submerged structure, the structure is simple and practical, and the installation and replacement operations by the user are simple, and the power supply device of the present invention realizes a slow power supply. Rise and fall slowly. In the initial power supply period when the generator is turned on, slowly increase the supply voltage of the generator. A gradient distribution of hydrogen and oxygen ions is gradually established on both sides of the proton exchange membrane of the generator. At the end of the power supply when the generator is turned off, it slowly decreases. The power supply voltage of the generator gradually reduces the gradient distribution of hydrogen and oxygen ions on both sides of the generator membrane, thereby avoiding the reverse diffusion of hydrogen and oxygen ions, and also avoiding the damage caused by hydrogen and oxygen ions to the catalyst. The application field can greatly increase the service life of the generator. In addition, the electrolytic ozone generator of the present invention has a submerged structure, which has a simple and practical structure, and is easy for users to install and replace.

1‧‧‧ cathode frame

1-1‧‧‧cathode water guide air hole

10‧‧‧ lower reinforced titanium plate

10-1‧‧‧Anode conductive stud

11‧‧‧O-ring

12‧‧‧ cathode conductive plate

12-1‧‧‧ cathode conductive stud

12-2‧‧‧ Water and air holes

13‧‧‧electrolytic bucket

14‧‧‧nut

2‧‧‧ anode frame

21‧‧‧AC / DC power converter

22‧‧‧Microcontroller MCU

23‧‧‧Constant current generating circuit

3‧‧‧ Screw

4‧‧‧Anode microporous titanium plate

5‧‧‧Anode catalyst layer

6‧‧‧ proton exchange membrane

7‧‧‧ cathode microporous titanium plate

8‧‧‧ cathode catalyst layer

9‧‧‧ on reinforced titanium plate

9-1‧‧‧Anode water channel

The first figure is a schematic diagram of the structure of the ozone generator of the present invention; the second figure is the schematic diagram of the installation structure of the ozone generator and the electrolytic water bucket of the present invention. The third figure is a schematic structural diagram of the power supply device of the present invention; the fourth figure is the circuit principle diagram of the micro control chip MCU and the constant current generating circuit part of the power supply device of the present invention; the fifth figure is the voltage of the power supply in the step-down method of the present invention Waveform curve; the sixth figure is the voltage waveform curve of the power supply in the slow rise and fall mode of the present invention; the seventh figure is the voltage waveform curve of the stepwise rise and fall power supply of the present invention that maintains the initial voltage value for a long time; the eighth figure is the long The voltage waveform curve of the power supply in a slow rise and fall mode that maintains the initial voltage value over time.

The structure and composition of the "submerged electrolytic ozone generator" of the present invention and the effects it can produce are described in detail below with reference to the drawings.

As an example of the present case, a submerged electrolytic ozone generator (see the first and second figures) includes a cathode structure and an anode structure. The cathode structure includes a lower reinforced titanium plate 10, and the lower reinforced titanium plate 10 is connected to the lower reinforced titanium plate 10. The anode conductive studs 10-1, the lower reinforced titanium plate 10 is provided with a cathode frame 1, the cathode frame 1 is processed with a cathode water conducting hole 1-1, and the cathode frame 1 is embedded with a cathode conductive plate 12, the cathode is conductive Plate 12 is processed with water and air holes 12-2, and the cathode conductive plate 12 is connected with a cathode conductive stud 12-1, a cathode micro-hole titanium plate 7 is provided on the cathode conductive plate 12, a cathode catalyst layer 8 is provided on the cathode micro-hole titanium plate 7, and a proton exchange membrane 6 is provided on the cathode catalyst layer 8 An O-ring 11 is provided between the proton exchange membrane 6 and the cathode frame 1; the anode structure includes an upper reinforced titanium plate 9, the upper reinforced titanium plate 9 is processed with anode water-guiding holes 9-1, and the upper reinforced titanium plate 9 An anode frame 2 is arranged below, and an anode microporous titanium plate 4 is arranged inside the anode frame 2. An anode catalyst layer 5 is arranged under the anode microporous titanium plate 4; a lower reinforced titanium plate 10, a cathode frame 1, and a cathode conductive plate 12, O-ring seal 11, cathode microporous titanium plate 7, cathode catalyst layer 8, proton exchange membrane 6 and anode catalyst layer 5, anode microporous titanium plate 4, anode frame 2, upper reinforcing titanium plate 9 through screws 3 Fasten together; the cathode structure passes through the bottom of the electrolytic water bucket 13 through the cathode conductive stud 12-1 and goes out of the barrel; the anode structure passes the bottom of the electrolytic water bucket 13 through the anode conductive stud 10-1 and goes out of the bucket through the nut 14 The cathode conductive stud 12-1 and the anode conductive stud anode conductive stud 10-1 are connected to the generator power supply device.

Add pure water to the electrolytic water bucket before use to completely submerge the generator in water, and then connect the generator power supply device. The cathode drainage remains in the bucket during use. In terms of structure, the cathode and anode are completely isolated, and the cathode water-conducting holes 1-1 retain gas in the memory to disconnect the water to avoid the formation of a conductive path. Therefore, after the use is completed, the generator power supply is disconnected, and the generator is completely submerged in water. The poles are also electrically insulated to ensure the life of the generator. When the generator is abnormal and needs to be replaced, just remove the fixed nut. Save time and effort, fast and convenient.

The generator power supply device (see third to sixth figures) includes an AC / DC power converter 21, a micro-control chip MCU 22, and a constant current generating circuit 23. The AC / DC power converter 21 is respectively connected to the micro control chip MCU22 and the constant current generating circuit 23, and the micro control chip MCU22 is connected to the constant current production The generating circuit 23 and the constant current generating circuit 23 connect the cathode conductive stud 12-1 and the anode conductive stud anode conductive stud 10-1.

The constant current generating circuit 23 includes a resistor R1 and a resistor R9 connected to the micro control chip MCU22. The resistor R1 is connected to one end of the capacitor C2 and the base of the transistor N2, and the other end of the capacitor C2 is connected to the emitter of the transistor N2 and the transistor N2. The collector is connected to one end of resistor R4, and the other end of resistor R4 is connected to one end of capacitor C3 and one end of resistor R5, two pins of a step-down DC power conversion chip U2 (XL4016), the other end of capacitor C3, and resistor R5 The other end is connected to the emitter of the transistor N2, one end of the capacitor C1, and two pins of the integrated operational amplifier U1 (LM321), and two pins of the step-down DC power conversion chip U2 (XL4016) are respectively connected to the anode and resistor of the diode D7. One end of R6, 5 pins of step-down DC power conversion chip U2 (XL4016) are connected to one end of capacitor C5, one end of capacitor C4, one end of electrolytic capacitor E1, one end of inductor ID2, and step-down DC power conversion chip U2 ( 4 pins of XL4016) are connected to the other end of capacitor C5, and 3 pins of step-down DC power conversion chip U2 (XL4016) are connected to one end of resistor R7, the negative pole of voltage regulator diode D6, one end of inductor ID4, and the end of resistor R7. another End is connected to one end of capacitor C6, the other end of inductor ID4 is connected to one end of capacitor C7, one end of electrolytic capacitor E2, the other end of resistor R6, one end of capacitor C8, one end of electrolytic capacitor E3, the other end of electrolytic capacitor E1, and capacitor The other end of C4, pin 1 of the step-down DC power conversion chip U2 (XL4016), the other end of capacitor C6, the positive electrode of voltage regulator diode D6, the other end of capacitor C7, the other end of electrolytic capacitor E2, and resistor R8 Connect one end of the resistor R8, the other end of the integrated operational amplifier U1 (LM321), the other end of the capacitor C8, the other end of the electrolytic capacitor E3, and the moving contact of the relay JD1; the integrated operational amplifier U1 (LM321) Pin 5 is connected to the other end of the inductor ID2 and the other end of the capacitor C1 for integrated operation The 4 pin of the amplifier U1 (LM321) is connected to the anode of the diode D7 and one end of the potentiometer RV1, and the 3 pin of the integrated operational amplifier U1 (LM321) is connected to one end of the resistor R3 and one end of the resistor R2, and the other end of the potentiometer RV1 is connected to The other end of resistor R2 is connected; the other end of resistor R9 is connected to one end of capacitor C19 and the base of transistor N1, the other end of capacitor C19 is connected to the emitter of transistor N1, and the collector of transistor N1 is connected to one end of the coil of relay JD1. The normally open point of the relay JD1 is connected to the cathode of the ozone generator OG, and the anode of the ozone generator OG is connected to one end of the electrolytic capacitor E3.

With the present invention, when in use, the micro control chip MCU controls the transistor N2 to be completely cut off first, and the transistor N1 is turned on to close the relay JD1 to supply power to the generator OG. The voltage of pin 2 of the step-down DC power conversion chip U2 (XL4016) is constant to 1.25V. At this time, the power supply voltage is determined by the values of resistor R5 and resistor R6 (adjust the values of R5 and R6 to control the voltage between 1.5V and 2.3V. Range, preferably R5 = 20KΩ, R6 = 10KΩ, the initial supply voltage is about 1.9V,), at this time, only a weak current flows through the generator OG. Then the micro control chip MCU outputs a PWM waveform to control the duty cycle of the transistor N2 on and off. At this time, the power supply voltage is determined by the values of the resistors R5 and R6 and the equivalent resistances of N2 and R4 (preferably: R5 = 20KΩ, R6 = (10KΩ, R4 = 3KΩ), as the duty cycle of the transistor N2 increases, the voltage that supplies the generator OG gradually increases. When the rated operating current of the generator OG is reached, the power supply circuit enters the constant current power supply mode. The constant current supply current is controlled by the integrated operational amplifier U1 (LM321), and the value is determined by the sampling resistor R8 and resistor R2, resistor R3 and potentiometer RV1. When discontinued, the micro-control chip MCU outputs PWM waveforms to control the duty cycle of the transistor N2 on and off gradually, and the voltage that supplies the generator OG gradually decreases until the transistor N2 enters a completely off state. At the same time, the generator OG also Only weak current flow Too. Continue to wait for a period of time (preferably about 3 minutes), and then the MCU controls the transistor N1 to turn off and the relay is turned off to completely stop supplying power to the generator OG. The stepped power supply waveforms are shown in Figures 5 and 7, and the slowly lifting power supply waveforms are shown in Figures 6 and 8.

Preferably, the power supply climb time is 5 to 30 seconds, and the power supply fall time is 10 to 300 seconds.

The above embodiments are merely descriptions of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and modifications made to the technical solution of the present invention by those skilled in the art can be made. Improvements should all fall within the protection scope determined by the claims of the present invention.

Claims (1)

A submerged electrolytic ozone generator includes a cathode structure and an anode structure. The cathode structure includes a lower reinforced titanium plate (10), and an anode conductive stud (10-1) is connected to the lower reinforced titanium plate (10). The titanium plate (10) is provided with a cathode frame (1). The cathode frame (1) is processed with a cathode water-guiding hole (1-1). The cathode frame (1) is embedded with a cathode conductive plate (12). The cathode conductive plate (12) is processed with water and air holes (12-2). The cathode conductive plate (12) is connected with a cathode conductive stud (12-1). The cathode conductive plate (12) is provided with a cathode microporous titanium plate. (7) The cathode microporous titanium plate (7) is provided with a cathode catalyst layer (8), and the cathode catalyst layer (8) is provided with a proton exchange membrane (6), and the proton exchange membrane (6) and the cathode frame (1) ) Is provided with an O-shaped seal ring (11); the anode structure includes an upper reinforced titanium plate (9), and the upper reinforced titanium plate (9) is processed with anode water-guiding holes (9-1), and the upper reinforced titanium plate (9 ) Is provided with an anode frame (2), an anode microporous titanium plate (4) is arranged inside the anode frame (2), and an anode catalyst layer (5) is arranged under the anode microporous titanium plate (4); Plate (10), cathode frame (1), cathode conductive plate (12), O-ring seal (11), cathode microporous titanium (7) Cathode catalyst layer (8), proton exchange membrane (6) and anode catalyst layer (5), anode microporous titanium plate (4), anode frame (2), upper reinforced titanium plate (9) through screws (3) fastened together; the cathode structure passes through the bottom of the electrolytic water bucket (13) through the cathode conductive stud (12-1) and enters the outside of the bucket; the anode structure passes the electrolytic water bucket (13) through the anode conductive stud (10-1) ) The bottom is inserted into the barrel and fastened by a nut (14); the cathode conductive stud (12-1) and the anode conductive stud are connected to the generator power supply device; the generator is powered by The device includes an AC / DC power converter (21), a micro control chip MCU (22), and a constant current generating circuit (23); an AC / DC power converter (21) is connected to the micro control chip MCU (22) and constant current generation respectively The circuit (23), the micro control chip MCU (22) is connected to the constant current generating circuit (23), and the constant current generating circuit (23) is connected to the cathode conductive stud (12-1) and the anode conductive stud (10- 1); The constant current generating circuit (23) includes a resistor R1 and a resistor R9 connected to the micro control chip MCU (22). The resistor R1 is connected to one end of the capacitor C2 and the base of the transistor N2, and the other end of the capacitor C2 is connected. Connect the emitter of transistor N2. The collector of transistor N2 is connected to one end of resistor R4. The other end of resistor R4 is connected to one end of capacitor C3 and one end of resistor R5. Step 2 of step-down DC power conversion chip U2 and capacitor C3 The other end and the other end of the resistor R5 are respectively connected to the emitter of the transistor N2, one end of the capacitor C1, and the two pins of the integrated operational amplifier U1. The two pins of the step-down DC power conversion chip U2 are respectively connected to the anode of the diode D7 and the resistor. One end of R6, 5 pins of step-down DC power conversion chip U2 are connected to one end of capacitor C5, one end of capacitor C4, one end of electrolytic capacitor E1, one end of inductor ID2, and 4 pins of step-down DC power conversion chip U2 are connected. The other end of the capacitor C5, the 3 pins of the step-down DC power conversion chip U2 are connected to one end of the resistor R7, the negative pole of the voltage regulator diode D6, and one end of the inductor ID4, and the other end of the resistor R7 is connected to one end of the capacitor C6. The other end of ID4 is connected to one end of capacitor C7, one end of electrolytic capacitor E2, the other end of resistor R6, one end of capacitor C8, one end of electrolytic capacitor E3, the other end of electrolytic capacitor E1, and the other end of capacitor C4. Terminal, 1 pin of step-down DC power conversion chip U2, the other end of capacitor C6, the anode of voltage regulator diode D6, the other end of capacitor C7, the other end of electrolytic capacitor E2, and one end of resistor R8, and resistor R8 The other end of the integrated operational amplifier U1, the other end of the capacitor C8, the other end of the electrolytic capacitor E3, and the moving contact of the relay JD1 are connected; the five end of the integrated operational amplifier U1 is connected to the other end of the inductor ID2 and the capacitor C1. At the other end, pin 4 of the integrated operational amplifier U1 is connected to the anode of diode D7 and one end of the potentiometer RV1, and pin 3 of the integrated operational amplifier U1 is connected to one end of the resistor R3 and one end of the resistor R2, and the other end of the potentiometer RV1 and the resistor The other end of R2 is connected; the other end of resistor R9 is connected to one end of capacitor C19 and the base of transistor N1, the other end of capacitor C19 is connected to the emitter of transistor N1, and the collector of transistor N1 is connected to the coil end of relay JD1. The normally open point of JD1 is connected to the cathode of the ozone generator OG, and the anode of the ozone generator OG is connected to one end of the electrolytic capacitor E3.