CN212127520U

CN212127520U - High-frequency high-voltage ozone generating equipment

Info

Publication number: CN212127520U
Application number: CN202020436775.4U
Authority: CN
Inventors: 陈军律; 白静; 叶航; 章杰
Original assignee: Zhejiang Liancheng Environmental Technology Co ltd
Current assignee: Zhejiang Liancheng Environmental Technology Co ltd
Priority date: 2020-03-30
Filing date: 2020-03-30
Publication date: 2020-12-11
Anticipated expiration: 2030-03-30

Abstract

The utility model provides a problem that ozone preparation volume in the unit interval of ozone generator among the prior art need improve provides a high frequency high pressure ozone generating device, belongs to ozone generation technical field, including direct current high pressure inverter circuit and ozone generating device, direct current high pressure inverter circuit includes main circuit breaker QF, three-phase rectifier bridge module TS1, IGBT inverter circuit, oil-immersed transformer TM, diode rectifier circuit, main circuit breaker QF, three-phase rectifier bridge TS1, IGBT inverter circuit, oil-immersed transformer TM, diode rectifier circuit connect according to the order, diode rectifier circuit's output and ozone generating device connect; a resistor R1 is connected in parallel between the three-phase rectifier bridge module TS1 and the IGBT inverter circuit, and two ends of the resistor R1 are connected in parallel with a capacitor C1; a capacitor C2 is connected in series between the IGBT inverter circuit and an initial coil of the oil-immersed transformer TM; the ozone generating device comprises an airflow stepping plate, an anode plate and a cathode wire, wherein the cathode wire is of a spiral wire structure.

Description

High-frequency high-voltage ozone generating equipment

Technical Field

The utility model belongs to the technical field of ozone takes place, concretely relates to high frequency high pressure ozone generating equipment.

Background

There are currently three ways of ozone generation: high-pressure discharge type, ultraviolet irradiation type, and electrolytic type. The most widely used ozone generator in related industries at home and abroad is of a high-voltage discharge type, and the ozone generator uses high-voltage current with certain frequency to manufacture a high-voltage corona electric field so as to cause oxygen molecules in or around the electric field to generate electrochemical reaction, thereby manufacturing ozone. For example, CN201910573659.9, entitled method for generating ozone by ozone generator, which connects 220 v ac power to transformer, and 3500 v high voltage current is generated by the transformer, and the transformer passes 3500 v high voltage current to ozone generator. Generally, the higher the discharge voltage, the higher the ozone conversion efficiency, and the higher the amount of ozone produced per unit time. The demand of ozone generators for the amount of ozone produced per unit time is increasing, and more efficient ozone generators are needed to produce more ozone to meet the needs of users.

Disclosure of Invention

The utility model provides a high-frequency high-voltage ozone generating device aiming at the problem that the ozone preparation amount in the unit time of an ozone generator in the prior art needs to be improved.

The invention aims to be realized by the following technical scheme: a high-frequency high-voltage ozone generating device comprises a high-frequency inverter circuit and an ozone generating device, wherein the high-frequency inverter circuit comprises a main circuit breaker QF, a three-phase rectifier bridge module TS1, an IGBT inverter circuit, an oil-immersed transformer TM and a diode rectifying circuit, the main circuit breaker QF, the three-phase rectifier bridge TS1, the IGBT inverter circuit, the oil-immersed transformer TM and the diode rectifying circuit are sequentially connected, and the output end of the diode rectifying circuit is connected with the ozone generating device; a resistor R1 is connected in parallel between the three-phase rectifier bridge module TS1 and the IGBT inverter circuit, and two ends of the resistor R1 are connected in parallel with a capacitor C1; a capacitor C2 is connected in series between the IGBT inverter circuit and a primary coil of the oil-immersed transformer TM; the capacitor C2 and the diode rectifying circuit are placed in transformer oil of the oil-immersed transformer TM; the ozone generating device comprises an airflow distribution plate, an anode plate and a cathode wire, wherein the cathode wire is of a spiral wire structure.

In the scheme, a three-phase power supply is rectified into direct current through the three-phase rectifier bridge module TS1 and then is inverted into two-phase high-voltage alternating current through the IGBT inverter circuit, the frequency of the high-voltage alternating current can be adjusted according to the on-off frequency of the IGBT, and the capacitor C2 and the TM primary coil of the oil-immersed transformer form a series resonance circuit, so that the inverted power supply voltage is further improved. The high-frequency high-voltage power supply boosted by the transformer is rectified into a high-voltage direct-current power supply by a diode rectifying circuit and then is transmitted to the ozone generating device. The resistor R1 is used for stabilizing the three-phase rectified voltage, and the capacitor C1 is used for filtering. The capacitor C2 and the diode rectifying circuit are placed in transformer oil of the oil-immersed transformer TM, and heat is quickly dissipated out of the heat generated inside through heat conduction of the transformer oil, so that stable and reliable operation of high-power components is guaranteed. The cathode wire adopts a spiral line structure, and can generate strong corona discharge due to the larger curvature radius of the spiral line structure, and can generate more uniform plate current between the cathode wire and the anode plate.

Preferably, the IGBT inverter circuit includes 4 IGBT modules, and the 4 IGBT modules constitute a full-bridge IGBT inverter circuit. The IGBT modules are switched on and off pairwise, a direct-current power supply is inverted into alternating current, the power supply frequency of the inverted alternating current can be controlled through the switching-on and switching-off frequency control, and the switching frequency of an IGBT inverter circuit in the system can reach over 20 KHZ.

Preferably, the capacitor C2 and the primary coil of the oil-immersed transformer TM form a series resonant circuit. The circuit is boosted using series resonance.

Preferably, the two ends of the oil-immersed transformer TM are provided with cooling fins, and the cooling fins are provided with fans. The heat dissipation can be accelerated when the equipment runs in a high-power state, and the stability and the reliability of the equipment are ensured.

Preferably, a plurality of groups of anode plates and cathode wires are arranged in the ozone generating device, and the anode plates and the cathode wires are respectively connected with each other. Thereby ensuring the space area required by oxygen in the ozone generating device to participate in the electrochemical reaction.

Preferably, the air flow distribution plates are respectively arranged at two ends of an electrode electric field formed by the anode plate and the cathode wire. The air flow distribution plate arranged at the front end can make oxygen uniformly flow into the gap between the anode plate and the cathode wire, and the air flow distribution plate arranged at the rear end can make the generated ozone uniformly flow out of the gap between the anode plate and the cathode wire.

Preferably, the oxygen inlet of the ozone generator is arranged on the same horizontal plane with the cathode wire and the anode plate. So that the oxygen can uniformly enter between the polar plates.

Preferably, the oxygen required by the ozone generator to participate in the electrochemical reaction is provided by an oxygen cylinder or an oxygen generator. The oxygen content is high, and the ozone conversion efficiency is correspondingly improved.

Compared with the prior art, the utility model discloses following beneficial effect has:

the high-frequency high-voltage discharge power supply improves the efficiency of the oxygen electrochemical reaction and improves the ozone amount prepared in unit time; the high-power components are placed in the transformer oil for heat dissipation, so that the stable and reliable operation of the high-power components is ensured, and the stable and reliable operation of equipment is further ensured; the cathode wire of the ozone generating device adopts a spiral line structure, can generate strong corona discharge and can generate more uniform plate current with the anode plate.

Drawings

FIG. 1 is a circuit diagram of a high frequency inverter circuit;

figure 2 is an ozone generating device structure diagram.

The labels in the figure are: 1. An air flow distribution plate; 2. an anode plate; 3. and a cathode line.

Detailed Description

The invention will be further described with reference to the embodiments shown in the drawings to which:

example 1

As shown in fig. 1 and 2, a high-frequency high-voltage ozone generating device comprises a high-frequency inverter circuit and an ozone generating device, wherein the high-frequency inverter circuit comprises a main circuit breaker QF, a three-phase rectifier bridge module TS1, an IGBT inverter circuit, an oil-immersed transformer TM and a diode rectifier circuit, the main circuit breaker QF, the three-phase rectifier bridge module TS1, the IGBT inverter circuit, the oil-immersed transformer TM and the diode rectifier circuit are sequentially connected, and an output end of the diode rectifier circuit is connected with the ozone generating device; a resistor R1 is connected in parallel between the three-phase rectifier bridge module TS1 and the IGBT inverter circuit, and two ends of the resistor R1 are connected in parallel with a capacitor C1; the resistor R1 is used for stabilizing the three-phase rectified voltage, and the capacitor C1 is used for filtering. After a three-phase power supply is rectified into direct current through a three-phase rectifier bridge module TS1, the direct current is inverted into two-phase high-voltage alternating current through an IGBT inverter circuit, the frequency of the high-voltage alternating current can be adjusted according to the on-off frequency of an IGBT, and a capacitor C2 is connected in series between the IGBT inverter circuit and a primary coil of the oil-immersed transformer TM; the capacitor C2 and the TM primary coil of the oil-immersed transformer form a series resonance circuit, and the voltage of the power supply can be further improved. And the capacitor C2 and the diode rectifying circuit are placed in transformer oil of the oil-immersed transformer TM. The heat can be quickly dissipated out through the heat conduction of the transformer oil, so that the stable and reliable operation of high-power components is ensured. The high-frequency high-voltage power supply boosted by the oil immersed transformer TM is rectified into a high-voltage direct-current power supply by a diode rectifying circuit and then is transmitted to the ozone generating device. And radiating fins are arranged at two ends of the TM of the oil-immersed transformer, and fans are arranged on the radiating fins. The heat dissipation can be accelerated when the equipment runs in a high-power state, and the stability and the reliability of the equipment are ensured. The IGBT inverter circuit comprises 4 IGBT modules, and the 4 IGBT modules form a full-bridge IGBT inverter circuit. The IGBT modules are switched on and off pairwise, a direct-current power supply is inverted into alternating current, the power supply frequency of the inverted alternating current can be controlled through the switching-on and switching-off frequency control, and the switching frequency of an IGBT inverter circuit in the system can reach over 20 KHZ.

The ozone generating device comprises an airflow distribution plate 1, an anode plate 2 and a cathode wire 3, wherein the cathode wire 3 is of a spiral line structure. The airflow distribution plates 1 are respectively arranged at two ends of an electrode electric field formed by the anode plate 2 and the cathode wire 3. The air flow distribution plate 1 arranged at the front end can make oxygen uniformly flow into the gap between the anode plate 2 and the cathode wire 3, and the air flow distribution plate 1 arranged at the rear end makes the generated ozone uniformly flow out between the anode plate 2 and the cathode wire 3. The oxygen inlet of the ozone generating device is arranged on the same horizontal plane with the cathode wire 3 and the anode plate 2. So that the oxygen can uniformly enter between the polar plates. The cathode wire 3 adopts a spiral wire structure, and can generate strong corona discharge due to the larger curvature radius of the spiral wire structure, and can generate more uniform plate current with the anode plate 2. A plurality of groups of anode plates 2 and cathode wires 3 are arranged in the ozone generating device, and the anode plates 2 and the cathode wires 3 are respectively connected with each other. Thereby ensuring the space area required by oxygen in the ozone generating device to participate in the electrochemical reaction.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A high-frequency high-voltage ozone generating device comprises a high-frequency inverter circuit and an ozone generating device, and is characterized in that the high-frequency inverter circuit comprises a main circuit breaker QF, a three-phase rectifier bridge module TS1, an IGBT inverter circuit, an oil-immersed transformer TM and a diode rectifying circuit, the main circuit breaker QF, the three-phase rectifier bridge TS1, the IGBT inverter circuit, the oil-immersed transformer TM and the diode rectifying circuit are sequentially connected, and the output end of the diode rectifying circuit is connected with the ozone generating device; a resistor R1 is connected in parallel between the three-phase rectifier bridge module TS1 and the IGBT inverter circuit, and two ends of the resistor R1 are connected in parallel with a capacitor C1; a capacitor C2 is connected in series between the IGBT inverter circuit and the primary coil of the oil-immersed transformer TM; the capacitor C2 and the diode rectifying circuit are placed in transformer oil of the oil-immersed transformer TM; the ozone generating device comprises an airflow distribution plate (1), an anode plate (2) and a cathode wire (3), wherein the cathode wire (3) is of a spiral line structure.

2. A high frequency high voltage ozone generating apparatus according to claim 1 wherein the IGBT inverter circuit comprises 4 IGBT modules, the 4 IGBT modules forming a full bridge IGBT inverter circuit.

3. A high frequency and high voltage ozone generating apparatus according to claim 1, wherein the capacitor C2 and the primary winding of the oil-filled transformer TM form a series resonant circuit.

4. The high-frequency high-voltage ozone generation device according to claim 1, wherein cooling fins are arranged at two ends of the oil-immersed transformer TM, and fans are arranged on the cooling fins.

5. The high-frequency high-voltage ozone generating device as claimed in claim 1, wherein a plurality of sets of anode plates (2) and cathode wires (3) are arranged in the ozone generating device, and the anode plates (2) and the cathode wires (3) are respectively connected with each other.

6. A high frequency and high voltage ozone generator as claimed in claim 1, wherein said air flow distribution plate (1) is disposed at two ends of the electric field of the electrode composed of the anode plate (2) and the cathode wire (3).

7. The high-frequency high-pressure ozone generating device as claimed in claim 1, wherein the oxygen inlet of the ozone generating device is arranged on the same horizontal plane with the cathode wire (3) and the anode plate (2).

8. The high-frequency high-pressure ozone generating device as claimed in claim 1, wherein the oxygen required by the ozone generating device to participate in the electrochemical reaction is provided by an oxygen cylinder or an oxygen generator.