CN113582140B

CN113582140B - Ozone discharge tube

Info

Publication number: CN113582140B
Application number: CN202110881069.XA
Authority: CN
Inventors: 彭冉; 张�杰; 李佳; 龙芳芳
Original assignee: Lihero Technology Hunan Co ltd
Current assignee: Lihero Technology Hunan Co ltd
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2022-08-05
Anticipated expiration: 2041-08-02
Also published as: CN113582140A

Abstract

The invention discloses an ozone discharge tube, comprising: inner and outer electrodes, and a dielectric manifold for protecting the inner and outer electrodes from oxidation by ozone. The first end of the dielectric main pipe extends along the axial direction in an inwards concave manner to form an inner installation channel with one end opened and one end closed, the second end of the dielectric main pipe extends along the axial direction in an inwards concave manner to form a reaction channel with one end opened and one end closed, the inner installation channel is positioned in the reaction channel and separated from the reaction channel, and an air inlet communicated with the reaction channel is further arranged on the outer wall of the first end of the dielectric main pipe. The inner electrode is arranged in the inner mounting channel, the outer electrode is connected to the outer wall surface of the dielectric main pipe, and the outer electrode and the inner electrode are matched to act so that reaction gas introduced into the reaction channel from the gas inlet is reacted to generate ozone. According to the ozone discharge tube, the inner electrode and the outer electrode cannot be oxidized by ozone molecules, so that the technical problems in the prior art are effectively solved.

Description

Ozone discharge tube

Technical Field

The invention relates to the field of ozone generators, in particular to an ozone discharge tube.

Background

Currently, common methods for generating ozone are ultraviolet irradiation method and corona discharge method, wherein corona discharge method is the mainstream method for synthesizing ozone industrially, and the principle thereof is as follows: corona is generated in gas through an alternating high-voltage electric field, free high-energy electrons in the corona dissociate oxygen molecules, and the oxygen molecules are polymerized into ozone molecules through collision. The method has the following advantages: the energy consumption is relatively low, the single machine ozone yield is large, and the air source can use dry air, oxygen or oxygen-enriched gas with higher oxygen concentration, and the like. Therefore, the generation of ozone under this method requires two conditions: a. the ozone power supply is used for providing an alternating high-voltage electric field; b. the ozone generator discharge tube is used for enabling oxygen-containing gas to fully pass through the alternating electric field and can resist the strong oxidizing capability of high-concentration ozone.

In view of the prior art, a method for implementing a small ozone generator, as shown in the patent application publication 202110453344.8 and the patent application publication 202022450836.5, adopts a discharge tube structure as shown in fig. 1. The structure discharges the oxygen-containing gas in the gas inlet by applying alternating high voltage to the inner and outer electrodes, so that the gas outlet discharges high-concentration ozone gas. Because ozone has extremely strong oxidizability, and the electrode is made of metal, the metal is placed in the ozone environment for a long time, so that an oxide layer is formed on the surface of the metal electrode, the electrolyte constant is influenced, and the generation of ozone is further influenced.

Disclosure of Invention

The invention provides an ozone discharge tube, which aims to solve the technical problem that the surface of a metal electrode of the existing ozone discharge tube is easy to oxidize so as to influence the generation of ozone.

The technical scheme adopted by the invention is as follows:

an ozone discharge tube comprising: the device comprises an inner electrode, an outer electrode and a dielectric main pipe, wherein the inner electrode and the outer electrode are used for generating an alternating high-voltage electric field, and the dielectric main pipe is used for protecting the inner electrode and the outer electrode from being oxidized by ozone; an inner mounting channel and a reaction channel which respectively extend along the length direction of the dielectric main pipe are arranged in the dielectric main pipe, the reaction channel is arranged outside the inner mounting channel, the inner mounting channel is not communicated with the reaction channel, an air inlet communicated with the reaction channel is arranged on the outer wall of one end of the dielectric main pipe, and an air outlet communicated with the reaction channel and used for discharging ozone generated by reaction outwards is arranged at the other end of the dielectric main pipe; the inner electrode is arranged in the inner mounting channel, the outer electrode is connected to the outer wall surface of the dielectric main pipe, and the outer electrode and the inner electrode are matched to act so that reaction gas introduced into the reaction channel from the gas inlet is reacted to generate ozone.

Furthermore, the inner electrode and the outer electrode are both leads inside the high-voltage wire; the inner electrode is inserted into the inner mounting channel from the open end of the inner mounting channel along the axial direction, the first end of the inner electrode is flush with the inner mounting channel, and the second end of the inner electrode is close to the closed end of the inner mounting channel; the outer electrodes extend along the length of the dielectric manifold.

Further, the ozone discharge tube further comprises conductive paper for conducting electricity; the conductive paper is wound and coated on the peripheral wall of the dielectric main pipe along the length direction of the dielectric main pipe, and the outer electrode is tightly fixed on the outer wall surface of the dielectric main pipe through the conductive paper.

Further, the arrangement length of the conductive paper on the dielectric manifold is not less than the length of the inner electrode.

Further, the dielectric manifold includes an inner dielectric tube and an outer dielectric tube in a hollow tubular shape, and the inner dielectric tube is disposed in the inner channel of the outer dielectric tube; the first end of the inner dielectric tube is opened or closed by a detachable sealing cover, the second end of the inner dielectric tube is closed, and the inner channel of the inner dielectric tube forms an inner installation channel; the first end of the outer dielectric tube is connected and sealed with the first end of the inner dielectric tube, the second end of the outer dielectric tube is connected and sealed with the second end of the inner dielectric tube, and an air outlet is arranged on the end face of the second end of the outer dielectric tube, or the second end of the outer dielectric tube extends beyond the inner dielectric tube and is closed, and an air outlet is arranged on the end face of the second end of the outer dielectric tube, or the second end of the outer dielectric tube is opened to form an air outlet, and a reaction channel is formed by a gap between the outer dielectric tube and the inner dielectric tube; the air inlet is arranged on the outer wall surface of the first end of the outer dielectric tube, and the outer electrode is connected to the outer wall surface of the outer dielectric tube.

Further, the air inlet is close to the first end part of the outer dielectric tube; the ozone discharge tube also comprises a gas-leading tube used for leading in reaction gas, the exhaust end of the gas-leading tube is communicated with the gas inlet, and the gas-leading tube is fixed with the outer dielectric tube.

Further, the ozone discharge tube further comprises a filter for filtering the reaction gas; the filter is arranged in the air-entraining pipe.

Further, the ozone discharge tube further comprises a detector for detecting the humidity of the reaction gas; the detector is arranged in the bleed air pipe.

Further, the ozone discharge tube also comprises an air guide tube for guiding the ozone outwards; the air duct is connected with the second end of the outer dielectric tube.

Further, the ozone discharge tube also comprises a filter material for filtering the ozone; the filtering material is arranged in the air duct.

The invention has the following beneficial effects:

when the ozone discharge tube works, reaction gas such as dry air, oxygen or oxygen-enriched gas with high oxygen concentration enters the reaction channel through the air inlet; after the reaction gas enters the reaction channel, the reaction gas reacts under the action of an alternating high-voltage electric field generated by the cooperation of the inner electrode and the outer electrode to generate ozone molecules, and the ozone molecules are finally discharged outwards from the gas outlet of the reaction channel. In the ozone discharge tube, the inner electrode is arranged in the inner mounting channel, the outer electrode is connected to the outer wall surface of the dielectric main pipe, and the reaction channel is a reaction channel which is not communicated with the outer wall surface of the dielectric main pipe and the inner mounting channel, so that ozone molecules generated in the reaction channel are not contacted with the inner electrode and the outer electrode due to the special structure of the dielectric main pipe, and the inner electrode and the outer electrode are not oxidized by the ozone molecules, thereby solving the technical problem that the oxidation layer is formed on the surface of the metal electrode to influence the electrolyte constant and further influence the generation of ozone in the prior art, and the inner electrode and the outer electrode have good working states and can be used for a long time.

In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:

FIG. 1 is a schematic front view of an ozone discharge tube of the prior art;

FIG. 2 is a schematic front view of an ozone discharge tube according to a preferred embodiment of the present invention;

fig. 3 is a schematic view of connection of an ozone discharge tube according to a preferred embodiment of the present invention.

Description of the figures

10. An inner electrode; 20. an outer electrode; 30. a dielectric manifold; 301. an inner installation channel; 302. a reaction channel; 303. an air inlet; 31. an inner dielectric tube; 32. an outer dielectric tube; 40. a conductive paper; 50. a bleed pipe; 60. an air duct; 70. a filter; 80. a detector; 90. and (3) filtering the material.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the accompanying drawings, but the invention can be embodied in many different forms, which are defined and covered by the following description.

Referring to fig. 2 and 3, a preferred embodiment of the present invention provides an ozone discharge tube including: an inner electrode 10 and an outer electrode 20 for generating an alternating high voltage electric field, and a dielectric manifold for protecting the inner electrode 10 and the outer electrode 20 from oxidation by ozone; an inner installation channel 301 and a reaction channel 302 which respectively extend along the length direction of the dielectric main pipe are arranged in the dielectric main pipe, the reaction channel 302 is arranged outside the inner installation channel 301, the inner installation channel 301 and the reaction channel 302 are not communicated, an air inlet 303 communicated with the reaction channel 302 is arranged on the outer wall of one end of the dielectric main pipe, and an air outlet communicated with the reaction channel 302 and used for discharging ozone generated by reaction outwards is arranged at the other end of the dielectric main pipe; the inner electrode 10 is arranged in the inner mounting channel 301, the outer electrode 20 is connected to the outer wall surface of the dielectric manifold, and the outer electrode 20 and the inner electrode 10 cooperate to react the reaction gas introduced into the reaction channel 302 through the gas inlet 303 to generate ozone.

When the ozone discharge tube works, reaction gas, such as dry air, oxygen or oxygen-enriched gas with high oxygen concentration enters the reaction channel 302 through the air inlet 303; after the reaction gas enters the reaction channel 302, the reaction gas reacts under the action of the alternating high-voltage electric field generated by the cooperation of the inner electrode 10 and the outer electrode 20 to generate ozone molecules, and the ozone molecules are finally discharged outwards from the gas outlet formed in the reaction channel 302. In the ozone discharge tube, the inner electrode 10 is arranged in the inner mounting channel 301, the outer electrode 20 is connected to the outer wall surface of the dielectric main pipe, and the reaction channel is the reaction channel 302 which is isolated and not communicated with the outer wall surface of the dielectric main pipe and the inner mounting channel 301, so that ozone molecules generated in the reaction channel 302 are not contacted with the inner electrode 10 and the outer electrode 20 due to the special structure of the dielectric main pipe, the inner electrode 10 and the outer electrode 20 are not oxidized by the ozone molecules, the technical problem that the ozone generation is influenced by the technical problem that the ozone is influenced by the fact that an oxidation layer is formed on the surface of a metal electrode in the prior art is solved, the inner electrode 10 and the outer electrode 20 are good in working state and can be used for a long time.

Alternatively, as shown in fig. 2 and 3, the inner electrode 10 and the outer electrode 20 are both wires inside the high voltage wire; compared with the prior art that the inner electrode tube is a round rod and the outer electrode tube is a hollow tubular structure, in the structure of the invention, the inner electrode 10 and the outer electrode 20 are both leads inside a high-voltage wire, the materials are simple to obtain, the processing and the preparation are simple, the manufacturing cost can be greatly reduced, and the industrial popularization and use of a corona discharge method are improved. The inner electrode 10 is inserted into the inner mounting channel 301 from the open end of the inner mounting channel 301 along the axial direction, the first end of the inner electrode 10 is flush with the inner mounting channel 301, and the second end of the inner electrode 10 is close to the closed end of the inner mounting channel 301; on one hand, the inner electrode 10 is simple to install and easy to fix and disassemble, and on the other hand, the two ends of the inner electrode 10 are flush with the two ends of the inner installation channel 301 as much as possible, so that the effective operation length of the inner electrode 10 can be increased, and the ozone generation efficiency and concentration can be further improved. The outer electrodes 20 extend along the length direction of the dielectric main pipe, the positioning and the arrangement of the outer electrodes 20 are simple, and the installation difficulty of the outer electrodes 20 is reduced.

Optionally, as shown in fig. 2, the ozone discharge tube further includes a conductive paper 40 for conducting electricity. The conductive paper 40 is wound and coated on the outer peripheral wall of the dielectric main pipe along the length direction of the dielectric main pipe, and the outer electrode 20 is closely fixed on the outer wall surface of the dielectric main pipe through the conductive paper 40. In the alternative, the conductive paper 40 is used, so that the outer electrode 20 is easy to fix and disassemble, and the difficulty in mounting and positioning the outer electrode 20 is reduced; on the other hand, the conductive paper 40 cooperates with the outer electrode 20 to realize the function of the outer electrode tube, so that the periphery of the inner electrode 10 can form high voltage with the outer electrode tube, thereby increasing the amount of ionized gas, improving the efficiency and quality of ozone generation, and simultaneously effectively shortening the required length of the outer electrode 20, so that the outer electrode 20 is a small section with short length, even a point for introducing current, thereby greatly reducing the manufacturing cost of the outer electrode 20. In this alternative, the conductive paper 40 is a tin foil paper, and is easy to be wound and fixed.

Preferably, as shown in fig. 2, the arrangement length of the conductive paper 40 on the dielectric manifold is not less than the length of the inner electrode 10, thereby increasing the effective working length of the inner electrode 10 and finally increasing the efficiency and mass concentration of ozone generation.

Alternatively, as shown in fig. 2 and 3, the dielectric manifold includes an inner dielectric tube 31 and an outer dielectric tube 32 in a hollow tubular shape, and the inner dielectric tube 31 is disposed in an inner passage of the outer dielectric tube 32. The first end of the inner dielectric tube 31 is opened or closed by a removable seal cap so that the inner electrode 10 is fitted into the inner mounting passage 301 from the first end of the inner dielectric tube 31; the second end of the inner dielectric tube 31 is closed, preventing its inner passage from communicating with the inner passage of the outer dielectric tube 32, and the inner passage of the inner dielectric tube 31 forms an inner mounting passage 301.

The first end of the outer dielectric tube 32 is hermetically connected to the first end of the inner dielectric tube 31, preventing the inner mounting channel 301 from communicating with the inner channel of the outer dielectric tube 32. The second end of the outer dielectric tube 32 is hermetically connected with the second end of the inner dielectric tube 31, and an air outlet is arranged on the end face of the second end of the outer dielectric tube 32 for discharging the generated ozone; or, the second end of the outer dielectric tube 32 is closed after extending beyond the inner dielectric tube 31, and the second end surface thereof is provided with an air outlet for discharging the generated ozone; or, the second end opening of the outer dielectric tube 32 forms an air outlet for discharging the generated ozone, and the gap between the outer dielectric tube 32 and the inner dielectric tube 31 forms the reaction channel 302, so that the structure of the outer dielectric tube 32 is simple and the processing difficulty is small. The gas inlet 303 opens into the outer wall of the first end of the outer dielectric tube 32, and the outer electrode 20 is connected to the outer wall of the outer dielectric tube 32.

In this alternative, the inner dielectric tube 31 and the outer dielectric tube 32 are made of quartz glass, which is simple in material selection and low in cost, and can effectively prevent ozone oxidation. In this alternative, the dielectric manifold includes an inner dielectric tube 31 and an outer dielectric tube 32 that are sleeved inside and outside, and both the inner dielectric tube 31 and the outer dielectric tube 32 may be a hollow tubular structure with an open end and a closed end, or a welded structure with a hollow tubular structure with an open end and a closed end welded together. Alternatively, the dielectric manifold includes an inner dielectric tube 31 and an outer dielectric tube 32 that are nested inside and outside, and the inner dielectric tube 31 and the outer dielectric tube 32 are integrally formed. No matter what kind of structure is that the concrete structure of dielectric house steward, the overall structure of dielectric house steward is simple, preparation easily, more importantly, in the structural setting of dielectric house steward, when realizing reaction channel 302 and interior installation passageway 301 and the sealed wall of dielectric house steward peripheral face, does not use any sealed components and parts, such as sealing ring, sealed backing plate, sealing strip etc. to can greatly improve ozone discharge tube's life and safety in utilization, reduce maintenance time and required cost.

Alternatively, as shown in fig. 3, the inlet port 303 is near the first end portion of the outer dielectric tube 32. The ozone discharge tube further comprises a gas introducing pipe 50 for introducing the reaction gas, an exhaust end of the gas introducing pipe 50 is communicated with the gas inlet 303, and the gas introducing pipe 50 is fixed with the outer dielectric tube 32. In this alternative, the bleed air pipe 50 is welded and fixed to the outer dielectric tube 32, and the bleed air pipe 50 may also be integrally formed with the outer dielectric tube 32.

Optionally, as shown in fig. 2, the ozone discharge tube further comprises a filter 70 for filtering the reaction gas. A filter 70 is arranged in the bleed air duct 50. The filter 70 is used for filtering foreign particles such as dust in the reaction gas to protect the discharge tube, prevent the discharge tube from being damaged by the foreign particles, and ensure the normal operation of the discharge tube. In this alternative, the filter 70 is a commercially available filter for filtering out foreign particles from the gas.

Optionally, as shown in fig. 2, the ozone discharge tube further comprises a detector 80 for detecting the humidity of the reaction gas. A detector 80 is provided in the bleed air duct 50. A detector is arranged in the gas guide pipe 50 and used for monitoring the drying degree of the gas source at the gas inlet end, if the humidity of the gas source is higher, the generation of ozone can be influenced, and even the discharge tube can be damaged, if the humidity of the reaction gas is higher, the reaction gas is dried by a gas drying device and then is introduced into the gas guide pipe 50; alternatively, a gas drying device is disposed in the gas outlet end of the gas introducing pipe 50 to dry the reaction gas and then introduce the reaction gas into the gas inlet 303. In this alternative, the detector 80 is a temperature and humidity sensor.

Optionally, as shown in fig. 3, the ozone discharge tube further comprises an air duct 60 for guiding the ozone out. The air duct 60 is connected to the second end of the outer dielectric tube 32 for introducing ozone into the rear-end ozone using device. In this alternative, the air duct 60 is fixed to the second end of the outer dielectric tube by welding.

Optionally, as shown in fig. 2, the ozone discharge tube further comprises a filter material 90 for filtering the ozone. A filter material 90 is disposed in the airway tube 60. Filter material 90 is arranged in filtering impurity particulate matters such as the dust in the ozone molecule to protection rear end ozone user equipment prevents it by impurity particulate matter damage, and then guarantees rear end ozone user equipment's normal work. In this alternative, filter material 90 is the filter pulp, can effectively be waterproof, prevent impurity particulate matter, protects the normal work of rear end ozone user equipment.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An ozone discharge tube, comprising:

an inner electrode (10) and an outer electrode (20) for generating an alternating high voltage electric field, and a dielectric manifold for protecting the inner electrode (10) and the outer electrode (20) from oxidation by ozone;

an inner installation channel (301) and a reaction channel (302) which respectively extend along the length direction of the dielectric main pipe are arranged in the dielectric main pipe, the reaction channel is arranged outside the inner installation channel (301), the inner installation channel (301) is not communicated with the reaction channel (302), an air inlet (303) communicated with the reaction channel (302) is arranged on the outer wall of one end of the dielectric main pipe, and an air outlet communicated with the reaction channel (302) and used for discharging ozone generated by reaction outwards is arranged at the other end of the dielectric main pipe;

the inner electrode (10) is arranged in the inner mounting channel (301), the outer electrode (20) is connected to the outer wall surface of the dielectric main pipe, and the outer electrode (20) and the inner electrode (10) are matched to react reaction gas introduced into the reaction channel (302) through the gas inlet (303) to generate ozone.

2. The ozone discharge tube of claim 1,

the inner electrode (10) and the outer electrode (20) are both leads inside a high-voltage wire;

the inner electrode (10) is axially inserted into the inner mounting channel (301) from the open end of the inner mounting channel (301), the first end of the inner electrode (10) is flush with the inner mounting channel (301), and the second end of the inner electrode (10) is close to the closed end of the inner mounting channel (301);

the outer electrodes (20) extend in the longitudinal direction of the dielectric manifold.

3. The ozone discharge tube of claim 2,

the ozone discharge tube further comprises a conductive paper (40) for conducting electricity;

the conductive paper (40) is wound and coated on the peripheral wall of the dielectric main pipe along the length direction of the dielectric main pipe, and the outer electrode (20) is tightly fixed on the outer wall surface of the dielectric main pipe through the conductive paper (40).

4. The ozone discharge tube of claim 3,

the arrangement length of the conductive paper (40) on the dielectric manifold is not less than the length of the inner electrode (10).

5. The ozone discharge tube of claim 1,

the dielectric main pipe comprises a hollow tubular inner dielectric pipe (31) and an outer dielectric pipe (32), and the inner dielectric pipe (31) is arranged in an inner channel of the outer dielectric pipe (32);

a first end of the inner dielectric tube (31) is opened or closed by a removable sealing cover, a second end of the inner dielectric tube (31) is closed, and an inner channel of the inner dielectric tube (31) forms the inner mounting channel (301);

the first end of the outer dielectric tube (32) is connected and sealed with the first end of the inner dielectric tube (31), the second end of the outer dielectric tube (32) is connected and sealed with the second end of the inner dielectric tube (31), the second end face of the outer dielectric tube (32) is provided with the air outlet, or the second end of the outer dielectric tube (32) extends beyond the inner dielectric tube (31) and is closed, the second end face of the outer dielectric tube is provided with the air outlet, or the second end of the outer dielectric tube (32) is opened to form the air outlet, and the gap between the outer dielectric tube (32) and the inner dielectric tube (31) forms the reaction channel (302);

the air inlet (303) is arranged on the outer wall surface of the first end of the outer dielectric tube (32), and the outer electrode (20) is connected to the outer wall surface of the outer dielectric tube (32).

6. The ozone discharge tube of claim 5,

the air inlet (303) is close to the first end part of the outer dielectric tube (32);

the ozone discharge tube further comprises a gas-guiding tube (50) used for introducing reaction gas, the exhaust end of the gas-guiding tube (50) is communicated with the gas inlet (303), and the gas-guiding tube (50) is fixed with the outer dielectric tube (32).

7. The ozone discharge tube of claim 6,

the ozone discharge tube further comprises a filter (70) for filtering the reaction gas;

the filter (70) is arranged in the bleed air pipe (50).

8. The ozone discharge tube of claim 6,

the ozone discharge tube further comprises a detector (80) for detecting humidity of the reaction gas;

the detector (80) is disposed in the bleed air duct (50).

9. The ozone discharge tube of claim 5,

the ozone discharge tube also comprises an air guide tube (60) for guiding the ozone outwards;

the air duct (60) is connected with the second end of the outer dielectric tube (32).

10. The ozone discharge tube of claim 9,

the ozone discharge tube further comprises a filter material (90) for filtering ozone;

the filtering material (90) is arranged in the air duct (60).