KR20160077696A - A discharge tube for the ozone generator comprised of a pair of cap - Google Patents

Abstract

Provided is a discharge tube for an ozone generator. The discharge tube uses caps having a plurality of protrusions, and can more stably form a discharging space while being easily assembled, wherein the protrusions act as spacers by having a width thicker than the gap in the discharging space. Also, provided is a discharge tube for an ozone generator, which can relatively accurately form a gap in the discharging space, and can be easily assembled by using caps having groove parts forming a plurality of pairs and a curved part inserted between the groove parts and an electrode tube.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a discharge tube for an ozone generator including a pair of caps,

The present invention relates to a discharge tube for an ozone generator, and more particularly, to a discharge tube for an ozone generator which is formed by uniformly arranging a gap between discharge spaces between an inner electrode tube as a high voltage electrode and an outer electrode tube as a ground electrode, Discharge tube.

Ozone is a molecule bound to three oxygen atoms, unstable gas at room temperature and normal pressure. After a certain period of time, it is disassociated into one oxygen atom and oxygen molecule and has a property of becoming stable state. At this time, It emits strong oxidative power because it emits.

Since ozone does not leave chemical properties after oxidation, it does not cause secondary pollution and is used in industries such as bleaching of pulp and paper, pharmaceutical manufacturing, chemical industry as well as treatment of water supply, sewage, wastewater and manure, And sterilization of an inhalation air such as an air conditioner.

Various methods of ozone generation have been researched and developed for ozone generation due to the increase in the use field of ozone. Various methods of generating ozone such as a ceramic discharge method, a silent discharge method, an electrolytic method, a photochemical reaction method, a radiation method, . Among them, the silent discharge method is most advantageous in commercialized ozone generating apparatus because it has the best energy efficiency, safety of performance, simplicity of operation and control, and the like.

In the silent discharge method, when a dielectric such as ceramic or glass is inserted between two electrodes and an AC voltage is applied, a discharge occurs between the electrode and the dielectric gap. When oxygen is supplied between the electrodes, oxygen molecules dissociate, The dissociated oxygen atoms combine with other oxygen molecules to form ozone.

Conventionally, a discharge tube for an ozone generator has a structure in which a dielectric such as glass is sandwiched between metal electrodes and a high-voltage alternating current is applied to generate a silent discharge in a source gas (oxygen gas) introduced into a discharge space between metal electrodes to generate ozone gas And a separate spacer for maintaining a discharge space between the metal electrodes.

Conventionally, a spacer used in a discharge tube for an ozone generator has been welded at both ends of an electrode at 90 DEG to 120 DEG intervals around a discharge tube axis to support between metal electrodes with a minute area. Patent Publication No. 2006-76837)

However, in such a case, a separate spacer welding process is required, and since it is necessary to insert the spacer into a shape including a spacer, it is not easy to assemble the discharge tube and the manufacturing cost is increased.

Also, the smaller the spacing of the discharge spaces is, the higher the efficiency of generating ozone. However, there is a limit in manufacturing the spacers, and there is a limit in reducing the interval of the discharge spaces.

An object of the present invention is to provide a discharge tube for an ozone generator which has a pair of caps and which has a stable and uniform discharge space and is easy to assemble.

In one embodiment of the present invention, an inner electrode tube is coated with a dielectric layer on its outer circumferential surface and includes an inclined portion whose diameter decreases from a certain point on both ends; An outer electrode tube inserted to be spaced apart from the outer periphery of the inner electrode tube; And a pair of caps inserted into both ends of the inner electrode tube and the outer electrode tube, the plurality of protrusions extending from one end of the inner receiving space having the plurality of stages, to provide.

The protruding portion may include a first surface contacting the inner circumferential surface of the outer electrode tube and a second surface contacting the outer surface of the inner electrode tube and facing the first surface, A discharge tube for an ozone generator, which is inserted between inner peripheral surfaces of a tube to form a discharge space.

Further, the projecting portion has an inclination of an angle to the thickness is reduced from a certain point in the second face, the minimum value (t _min) is a discharge tube for a large ozone generation than the distance (s) of the discharge space unit of the projection thickness to provide.

The cap may further include an outer electrode tube support groove and an inner electrode tube through groove, the outer electrode tube support groove may include a first surface of the protrusion to support both ends of the outer electrode tube, Wherein the inner electrode tube through-groove is formed in a central axis of the cap and penetrates a coupling portion of a certain diameter extending from an inclined portion of the inner electrode tube.

Further, the discharge tube for the ozone generator may further include a fastening member including a threaded portion and a cap supporting portion and further fastened to the cap in addition to the fastening portion, wherein the threaded portion has a screw formed on an inner side surface or an outer side surface thereof through a through- And the cap supporting portion is formed to be larger than the diameter of the through-hole, thereby providing a discharge tube for an ozone generator, which applies a pressing pressure to the cap at the time of screwing.

The pair of caps may include an upper cap including a raw material gas inflow passage and a lower cap including a product gas outflow passage, wherein the raw material gas inflow passage and the product gas outflow passage are provided at 170 to 190 A discharge tube for an ozone generator is inserted so as to be positioned in a different direction.

Also, three to five protrusions are formed at regular intervals, and the cap is made of Pyridinium p-toluenesulfonate (PPTS) or Polytetrafluoroethylene (PTFE, Teflon).

According to another embodiment of the present invention, there is provided a plasma display panel comprising: an inner electrode tube coated with a dielectric layer on an outer circumferential surface thereof and having an inclined portion at a predetermined angle with a reduced diameter from a certain point on both ends; An outer electrode tube inserted to be spaced apart from the outer periphery of the inner electrode tube; And a pair of caps inserted into both ends of the inner electrode tube and the outer electrode tube, wherein the pair of cavities are formed in an inner receiving space having a plurality of stages; And spacers inserted between both ends of the electrode tube and into the groove to form a discharge space,

Wherein the bent portion includes a pair of first bent portions inserted in the pair of the groove portions and a second bent portion inserted between both ends of the electrode tube, Which is an inclined portion connected to one end of the ozone generator.

Also, the spacer is in the form of a line having a diameter (d) in which the first bent portion-connecting portion-the second bent portion-connecting portion-the first bent portion are continuously formed, and the diameter d is equal to the interval s of the discharge spaces The inclined portion of the connecting portion of the spacer and the inclined portion of the inclined portion of the inner electrode tube are the same, and the connecting portion is closely attached to the inclined portion.

The cap may further include an outer electrode tube support groove and an inner electrode tube support groove. The outer electrode tube support groove is formed in the inner space of the cap to support both ends of the outer electrode tube, The electrode tube through-hole is formed in the center axis of the cap and penetrates the coupling portion of a certain diameter extending from the inclined portion of the inner electrode tube.

Further, the discharge tube for the ozone generator may further include a fastening member including a threaded portion and a cap supporting portion and further fastened to the cap in addition to the cap, wherein the threaded portion has a screw formed on an inner side surface or an outer side surface thereof through a through- And the cap supporting portion is formed to be larger than the diameter of the through hole, thereby providing a discharge tube for an ozone generator, which applies a pressing pressure to the cap when the screw is engaged.

In addition, the pair of caps may include an upper cap including a raw material gas inflow passage and a lower cap including an ozone gas outflow passage, wherein the raw material gas inflow passage and the ozone gas outflow passage are provided at 170 [deg.] To 190 A discharge tube for an ozone generator is inserted so as to be positioned in a different direction.

3 to 5 pairs of paired grooves are formed at regular intervals, and the material of the cap is Pyridinium p-toluenesulfonate (PPTS) or Polytetrafluoroethylene (PTFE, Teflon), and the spacer is a metal spring having elasticity , And a discharge tube for an ozone generator in which 1,1-Nylon is coated on the entire surface.

It is necessary to insert a cap including a plurality of protrusions formed from one end of an inner space having several stages into both ends of the electrode tube so as to keep the interval of the discharge spaces constant and to weld another spacer It is possible to provide a discharge tube for an ozone generator which is easy to assemble while forming a fine discharge space of 0.3 mm to 0.5 mm.

In addition, since the one end of the projecting end has a certain angle of inclination, it forms a contact surface with the inclination of the inner electrode tube which is inclined at both ends, and can form a stable and uniform discharge space. So that the discharge tube assembly and the discharge space can be more stably formed.

Further, the cap has an inner space and an appropriate number of protrusions to prevent the flow of the raw material gas and the outflow of the generated gas, and the inner accommodating space has an outer electrode tube support groove and an inner electrode tube through groove, The risk of eccentricity of the inner electrode tube can be reduced.

In addition, the cap which is paired at both ends of the electrode tube is inserted such that the raw material gas inflow path and the product gas outflow path are positioned in the direction that is 170 ° to 190 ° different from each other so that the raw material gas passes through the discharge space sufficiently, .

In addition, when the cap is manufactured, the protrusions are integrally manufactured, so that a separate spacer manufacturing process is not required, which is convenient to manufacture and can save cost.

Further, the present invention further includes a fastening member that is further fastened in addition to the cap, so that the cap can be more firmly inserted into both ends of the electrode tube by providing the pressing pressure to the cap, and the assembly of the discharge tube can be facilitated by a screw- .

According to another aspect of the present invention, there is provided a discharge tube for an ozone generator, comprising: a spacer including a groove portion formed at one end of an inner accommodation space and having a curved portion inserted between the electrode tube and the groove; Can be accurately formed, and the interval of the discharge spaces can be easily adjusted. Moreover, since it is not necessary to weld the spacers between the electrode tubes, assembly is easy even if a fine discharge space is formed.

1 is a longitudinal sectional view of an inner electrode tube 10 which is one embodiment of the present invention.
2 is a longitudinal sectional view of an outer electrode tube 20 which is an embodiment of the present invention.
3 is a top view and perspective view of the cap 30, which is one embodiment of the present invention.
4 is a longitudinal sectional view of the cap 30, which is an embodiment of the present invention, and a projected perspective view of the projection 301. FIG.
Fig. 5 is a longitudinal sectional side view and a longitudinal sectional view of the cap 30, which is one embodiment of the present invention.
6 is a longitudinal sectional view of the fastening member 60, which is one embodiment of the present invention.
7 is a cross-sectional view of a discharge tube according to an embodiment of the present invention.
8 is another cross-sectional view of a discharge tube according to an embodiment of the present invention.
9 is a longitudinal sectional view of the cap 40 which is one embodiment of the present invention.
10 is another longitudinal cross-sectional view of the cap 40 which is an embodiment of the present invention.
11 is a perspective view of a spacer 50, which is an embodiment of the present invention.
12 is a cross-sectional view of a coupled state discharge tube including a spacer 50, which is an embodiment of the present invention.

Before describing the present invention in detail, it is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention, which is defined solely by the appended claims. shall. All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art unless otherwise stated.

Throughout this specification and claims, the word "comprise", "comprises", "comprising" means including a stated article, step or group of articles, and steps, , Step, or group of objects, or a group of steps.

On the contrary, the various embodiments of the present invention can be combined with any other embodiments as long as there is no clear counterpoint. Any feature that is specifically or advantageously indicated as being advantageous may be combined with any other feature or feature that is indicated as being preferred or advantageous. Hereinafter, embodiments of the present invention and effects thereof will be described with reference to the accompanying drawings.

A discharge tube for an ozone generator according to an embodiment of the present invention includes a pair of electrode tubes (10, 20); And a pair of caps 30 inserted at both ends of the electrode tube.

The pair of electrode tubes 10 and 20 are composed of an inner electrode tube 10 which is a high voltage electrode and an outer electrode tube 20 which is a ground electrode and is made of electrically conductive material such as gold, Aluminum, tin, zinc, copper, stainless steel or the like, and has a hollow tube shape in which both end portions in the longitudinal direction of the electrode tube are opened.

When a high-voltage AC voltage is applied to the pair of electrode tubes 10 and 20, the space between the pair of electrode tubes, that is, the space between the outer circumferential surface of the inner electrode tube 10 and the outer surface of the outer electrode tube 20 A discharge occurs in a space between the inner circumferential surfaces (hereinafter referred to as a 'discharge space'). When a raw material gas containing oxygen is supplied to the discharge space, oxygen is dissociated as in the following reaction mechanism, and the dissociated oxygen atoms bond with other oxygen molecules to generate ozone.

[Reaction Mechanism]

O ₂ + e ^- > O + O + e ^-

O ₂ + e ^- > O ₂ * + e ^-

_{O + O 2 + M → O} 3 + M

_{O 2 * + O 2 → O} 3 + O

(M: third substance (O, O ₂ ), e ^- : electron)

As shown in FIG. 1, the inner electrode tube 10 is hollow and includes an inclined portion 101 whose outer circumferential surface is uniformly coated with a dielectric layer, and whose diameters decrease from a certain point on both ends. For example, the inclined portion 101 having a curved cross section may be a gradually decreasing portion of the diameter gradually increasing or decreasing, or the inclined portion 101 having a straight cross section having a constant decreasing ratio of the diameter.

By including the inclined portion 101 at both ends of the inner electrode tube 10, the discharge spaces at both ends of the electrode tube are increased, thereby reducing the discharge density at both ends of the electrode tube, thereby preventing the re-decomposition of the generated ozone And it is possible to suppress the phenomenon of thermal overheating, so that the temperature can be uniformly maintained throughout the discharge tube.

The inner electrode tube 10 further includes a fastening portion 102 that extends from an end of the sloped portion 101 having a minimum diameter and has a constant diameter. The fastening part 102 has a screw formed on the inner or outer surface thereof and is capable of being screwed to the fastening member 60 to be described later.

The inner electrode tube 10 includes a dielectric layer coating on the outer circumferential surface so that silent discharge occurs when a high-voltage AC voltage is applied. The dielectric layer coating may be coated with an insulating material such as glass, ceramics or quartz, for example.

As shown in FIG. 2, the outer electrode tube 20 is a hollow tube having a constant diameter, and is inserted into the outer circumference of the inner electrode tube 10 at a distance to form a discharge space.

The outer electrode tube 20 further includes a double outer circumferential surface 201 which forms a cooling water flow path 202 on the outer circumferential surface and the double circumferential surface 201 includes a cooling water inflow portion 2011 and a cooling water outflow 2012 And has a closed shape.

The cooling water inflow part 2011 and the cooling water outflow part 2012 may be formed at both ends of the double outer circumferential surface 201 of the outer electrode tube 20 and are formed to be positioned at 170 ° -190 ° The cooling efficiency can be improved. More preferably, 180 degrees.

The cap 30 according to the embodiment of the present invention includes a plurality of protrusions 301 having an internal accommodation space and extending from one end of the internal accommodation space, End. 3 is a plan view and a perspective view of a cap 30 according to an embodiment of the present invention.

4, the protrusion 301 includes a first surface 3011 and a second surface 3012 opposed to the first surface 3011, and the first surface 3011 includes an outer electrode tube 2011 And the second surface 3012 comes into contact with the outer peripheral surface of the inner electrode tube 10 to form a discharge space.

The protrusion 301 has a thickness t corresponding to the distance between the first surface 3011 and the second surface 3012 and the thickness t decreases from a certain point on the second surface 3012 to the protrusion 301 has a certain angle of inclination at one surface of the end portion and has a thickness t _min as the end portion of the protrusion 301 decreases. The protruding portion 301 is inserted into the inner electrode tube 10 forming the contact surface with the inclined portion 101 by inclining the protruding portion 301 at a certain angle on one surface of the end portion.

The interval s of the discharge spaces formed by the present invention is 0.3 mm to 0.5 mm and the minimum value t _{min of the} thickness of the projection 301 is larger than the interval s of the discharge spaces. Therefore, the interval of the discharge spaces is not determined by the thickness of the protrusions 301, and the discharge space is formed through the protrusions 301 having a thickness thicker than the interval of the discharge spaces, thereby keeping the interval s of the discharge spaces stable and constant .

It is preferable that three to five protrusions 301 are formed at regular intervals. There is a problem that the inner electrode tube 10 is eccentric in the outer electrode tube 20 due to the external impact and the gas flow in the discharge space. If the number of the inner electrode tube 10 exceeds 5, There is a problem. More preferably, four protrusions 301 are formed at intervals of 90 [deg.].

The protrusions 301 are integrally formed together when the cap 30 is molded so that the inner electrode tube 10 is prevented from being displaced even when the raw material gas containing oxygen is introduced into the outer electrode tube 20, ), The discharge space can be kept more stable and constant.

The cap 30 further includes an outer electrode tube support groove 302 and an inner electrode tube through groove 303. The outer electrode tube support groove 302 is formed to include the first surface 3011 of the protrusion 301 to support both ends of the outer electrode tube 20 and the inner electrode tube through- So that the fastening portion 102 of the inner electrode tube 10 penetrates.

The cap 30 is formed of a material having high strength, chemical resistance (ozone) and insulation such as (super) engineering plastic, and is made of, for example, Pyridinium p-toluenesulfonate (PPTS) or Polytetrafluoroethylene (PTFE, Teflon) Can be used.

The cap 30 is inserted in pairs at both ends of the pair of electrode tubes 10 and 20 and the pair of caps 30 is connected to the upper cap 31 including the raw gas inflow passage 311 containing oxygen 31 and a product gas outlet passage 321 containing ozone gas. 5 is a cross-sectional perspective view and a cross-sectional view of a cap 30 according to an embodiment of the present invention.

It is also preferable that the pair of caps 30 are inserted such that the raw material gas inflow passage 311 and the generated gas outflow passage 321 are positioned at 170 ° -190 ° from both ends of the pair of electrode tubes. In this case, the raw material gas containing oxygen can sufficiently pass through the discharge space, and the efficiency of generating ozone can be improved.

The discharge tube for an ozone generator according to an embodiment of the present invention further includes a fastening member 60 to be additionally fastened in addition to the cap 30. FIG. 6 is a cross-sectional view of a fastening member 60 according to an embodiment of the present invention. The fastening member (60) includes a threaded portion (601) and a cap supporting portion (602). The screw portion 601 is screwed to the fastening portion 102 of the inner electrode tube 10 through the penetration groove 303 of the cap 30 and the cap support portion 602 is screwed into the penetration groove 303 of the cap 30, So that the cap can be more firmly inserted into both end portions of the electrode tube by providing a pressing pressure to the cap 30 when screwing, and the assembly of the discharge tube can be facilitated by a screw coupling method.

7 and 8 are cross-sectional views of a coupled state discharge tube according to an embodiment of the present invention.

A discharge tube for an ozone generator according to another embodiment of the present invention includes a pair of electrode tubes (10, 20); A pair of caps (40) inserted at both ends of the electrode tube; And a spacer 50, and may further include a fastening member 60. The electrode tubes 10 and 20 and the fastening member 60 according to the present embodiment have the same configuration and effect as those of the electrode tubes 10 and 20 and the fastening member 60 according to the above- The cap 40 and the spacer 50 according to the embodiment will be described in detail.

The cap 40 according to another embodiment of the present invention includes a plurality of pairs of groove portions 401 formed at one end of the inner accommodation space and having a pair of electrode tubes 10 and 20 ). The first bent portion 501 of the spacer 50, which will be described later, is inserted into the pair of the groove portions 401. FIG. 9 is a cross-sectional view of a cap 40 according to an embodiment of the present invention.

Further, the cap 40 further includes an outer electrode tube support groove 402 and an inner electrode tube through-groove 403. The outer electrode tube support groove 402 is formed in the inner housing space of the cap 40 to support both ends of the outer electrode tube 20 and the inner electrode tube through groove 403 is formed in the center axis of the cap 40 And the fastening portion 102 of the inner electrode tube 10 penetrates.

The cap 40 is formed of a material having high strength, chemical resistance (ozone), and insulation such as (super) engineering plastic. For example, the cap 40 is made of Pyridinium p-toluenesulfonate (PPTS), or Polytetrafluoroethylene (PTFE, Teflon) Can be used.

The cap 40 is inserted in pairs at both ends of the pair of electrode tubes 10 and 20 and the pair of caps 40 is connected to an upper cap (not shown) including a raw gas inflow passage 411 containing oxygen And a bottom cap 42 including a product gas outflow passage 421 containing ozone gas. Fig. 10 is a cross-sectional view of another embodiment of the cap 40 according to the present invention.

It is also preferable that the pair of the caps 40 are inserted such that the raw material gas inflow passage 411 and the generated gas outflow passage 421 are positioned in the direction of 170 ° to 190 ° from both ends of the pair of electrode tubes. In this case, the raw material gas containing oxygen can sufficiently pass through the discharge space, and the efficiency of generating ozone can be improved.

The spacer 50 according to an embodiment of the present invention includes a curved portion and a connection portion and forms a discharge space between the outer peripheral surface of the inner electrode tube 10 and the inner peripheral surface of the outer electrode tube 20. 11 is a perspective view of a spacer 50 according to an embodiment of the present invention.

The bent portion includes a pair of first bent portions 501 inserted into the pair of the groove portions 401 of the cap 40 and a second bent portion 502 inserted between one ends of the pair of electrode tubes, The second bent portion 503 is paired with an inclined portion where both ends of the second bent portion 502 are connected to one end of the first bent portion 501. [

The spacer 50 is in the form of a line having a diameter d in which the first bending portion 501-the connecting portion 503 -the second bending portion 502 -the connecting portion 503-the first bending portion 501 are continuously formed. The diameter d of the spacer 50 is equal to the interval s of the discharge spaces. The spacing s of the discharge spaces to be achieved by the present invention is 0.3 mm to 0.5 mm, and therefore the diameter d of the spacer 50 is also 0.3 mm to 0.5 mm.

The angle of inclination of the connecting portion 503 of the spacer 50 and the angle of the inclined portion 101 of the end of the inner electrode tube 10 coincide with each other so that when the spacer 50 is inserted, (101) to form a discharge space. 12 shows one end surface of the coupled state discharge tube including the spacer 50, which is one embodiment of the present invention.

The spacer 50 is made of a metal spring having elasticity, for example, a spring steel material, and the surface of the spacer 50 is made of 1,1-Nylon or fluorine.

According to this embodiment, since the spacing s of the discharge spaces is determined by the diameter d of the spacer 50, the spacing of the discharge spaces can be easily adjusted.

It is preferable that three to five spacers are formed at a predetermined interval in the groove portion 401 forming the pair of the caps 40 and the spacers 50 inserted therein. There is a problem that the inner electrode tube 10 is eccentric due to the external impact and the gas flow in the discharge space. If the number of the inner electrode tube 10 is more than 5, there is a problem that the flow of the raw material gas is interfered. More preferably, four protrusions 301 are formed at intervals of 90 [deg.].

The characteristics of the discharge tube for an ozone generator having the structure according to the present invention are as follows.

In the present invention, by using an inner electrode tube (high voltage electrode) having an inclined portion whose diameter is reduced from a certain point at both ends, the discharge space at both ends of the discharge tube is increased to decrease the discharge density, It is possible to provide a discharge tube for an ozone generator which can keep the temperature uniform throughout the discharge tube.

Also, the present invention is characterized in that an outer electrode tube having a double outer circumferential surface capable of forming a cooling water flow path on the outer circumferential surface is used, and the cooling water inflow portion and the cooling water outflow portion on the outer circumferential surface are formed to be positioned in the direction shifted by 170 ° to 190 ° from both ends, A water-cooled discharge tube for an ozone generator with improved efficiency can be provided.

Further, by inserting a cap including a plurality of protrusions extending from one end of the internal space having several stages into both ends of the electrode tube, the gap of the discharge space can be kept constant, and a separate spacer It is possible to provide a discharge tube for an ozone generator which is easy to assemble while forming a fine discharge space of 0.3 mm to 0.5 mm.

In addition, since the one end of the projecting end has a certain angle of inclination, it forms a contact surface with the inclination of the inner electrode tube which is inclined at both ends, and can form a stable and uniform discharge space. So that the discharge tube assembly and the discharge space can be more stably formed.

Further, the cap has an inner space and an appropriate number of protrusions to prevent the flow of the raw material gas and the outflow of the generated gas, and the inner accommodating space has an outer electrode tube support groove and an inner electrode tube through groove, The risk of eccentricity of the inner electrode tube can be reduced.

In addition, the cap which is paired at both ends of the electrode tube is inserted such that the raw material gas inflow path and the product gas outflow path are positioned in the direction that is 170 ° to 190 ° different from each other so that the raw material gas passes through the discharge space sufficiently, .

In addition, when the cap is formed, the protrusions are integrally formed together to eliminate the need for a separate spacer manufacturing process, which is convenient to manufacture and can save costs.

Further, the present invention further includes a fastening member which is further fastened in addition to the cap, so that the cap can be more firmly inserted into both ends of the electrode tube by providing a pressing pressure to the cap, and the discharge tube can be easily assembled by screwing.

According to another aspect of the present invention, there is provided a discharge tube for an ozone generator, comprising: a spacer including a groove portion formed at one end of an inner accommodation space and having a curved portion inserted between the electrode tube and the groove; Can be accurately formed, and the interval of the discharge spaces can be easily adjusted. Moreover, since it is not necessary to weld the spacers between the electrode tubes, assembly is easy even if a fine discharge space is formed.

The features, structures, effects, and the like illustrated in the above-described embodiments can be combined and modified in other embodiments by those skilled in the art to which the embodiments belong. Therefore, it should be understood that the present invention is not limited to these combinations and modifications.

Claims (16)

An inner electrode tube including an inclined portion coated on the outer circumferential surface with a dielectric layer and having a diameter decreasing from a certain point on both ends;
An outer electrode tube inserted to be spaced apart from the outer periphery of the inner electrode tube; And
And a pair of caps inserted into both ends of the inner electrode tube and the outer electrode tube, the cap including a plurality of protrusions extending from one end of the inner accommodating space having various stages,
Wherein the projecting portion includes a first surface contacting the inner circumferential surface of the outer electrode tube and a second surface contacting the outer surface of the inner electrode tube and facing the first surface, A discharge tube for an ozone generator, which is interposed between inner peripheral surfaces to form a discharge space. The method according to claim 1,
The protrusion is a discharge tube for the first reduced thickness from the predetermined point on the second surface and has a slope of a predetermined angle, the minimum value (t _min) of the projecting portion thickness is greater than the ozone generating interval (s) of the unit discharge space. 3. The method of claim 2,
Wherein the cap further includes an outer electrode tube support groove and an inner electrode tube through groove,
Wherein the outer electrode tube support groove is formed to include a first surface of the protrusion to support both ends of the outer electrode tube,
Wherein the inner electrode tube through-hole is formed in the center axis of the cap and the fastening portion of a certain diameter extending from the inclined portion of the inner electrode tube passes through. The method of claim 3,
The discharge tube for an ozone generator further comprises a fastening member including a threaded portion and a cap supporting portion and further fastened in addition to the cap,
Wherein the screw portion is threadedly engaged with the fastening portion having a screw formed on an inner side surface or an outer side surface through a through groove of the cap,
Wherein the cap supporting portion is formed to have a diameter larger than the diameter of the through-hole, and applies a pressing pressure to the cap when the screw is engaged. 5. The method of claim 4,
Wherein the pair of caps comprises an upper cap including a feed gas inlet passage and a lower cap including a product gas outlet passage,
Wherein the raw material gas inflow passage and the product gas outflow passage are inserted so as to be positioned in a direction which is different from 170 ° to 190 ° from both ends. 6. The method according to any one of claims 1 to 5,
Wherein three to five protrusions are formed at regular intervals. 6. The method according to any one of claims 1 to 5,
The cap is made of Pyridinium p-toluenesulfonate (PPTS) or Polytetrafluoroethylene (PTFE, Teflon). An inner electrode tube coated with a dielectric layer on an outer circumferential surface thereof and having an inclined portion at a certain angle with a reduced diameter from a certain point on both ends;
An outer electrode tube inserted to be spaced apart from the outer periphery of the inner electrode tube; And
A pair of caps inserted into both ends of the inner electrode tube and the outer electrode tube, the pair of cavities being formed in an inner receiving space having a plurality of stages; And
And a spacer inserted between both ends of the electrode tube and into the groove to form a discharge space,
Wherein the bent portion includes a pair of first bent portions inserted into the pair of the groove portions and a second bent portion inserted between both ends of the electrode tube,
Wherein the connecting portion is an inclined portion at which both ends of the second bent portion are connected to one end of the first bent portion. 9. The method of claim 8,
Wherein the spacers are in the form of a line having a diameter d in which the first bend-connecting portion-the second bend-connecting portion-the first bend portion are continuously formed, and the diameter d is equal to the spacing s of the discharge spaces, Discharge tube. 10. The method of claim 9,
Wherein the inclined portion of the connecting portion of the spacer and the inclined portion of the inclined portion of the inner electrode tube are the same and the connecting portion is closely attached to the inclined portion. 11. The method of claim 10,
Wherein the cap further includes an outer electrode tube support groove and an inner electrode tube through groove,
The outer electrode tube support groove is formed in the inner space of the cap to support both ends of the outer electrode tube,
Wherein the inner electrode tube through-hole is formed in the central axis of the cap and the fastening portion of a certain diameter extending from the inclined portion of the inner electrode tube penetrates. 12. The method of claim 11,
The discharge tube for an ozone generator further comprises a fastening member including a threaded portion and a cap supporting portion and further fastened in addition to the cap,
Wherein the screw portion is screwed with the engaging portion formed with the screw on the inner side surface or the outer side surface through the through groove of the cap,
Wherein the cap supporting portion is formed to be larger than the diameter of the through-hole, and applies a pressing pressure to the cap when the screw is engaged. 13. The method of claim 12,
Wherein the pair of caps comprises an upper cap including a raw material gas inflow passage and a lower cap including an ozone gas outflow passage,
Wherein the source gas inflow passage and the ozone gas outflow passage are inserted so as to be positioned at 170 占 to 190 占 direction from both ends of the discharge gas passage. 14. The method according to any one of claims 8 to 13,
Wherein the pair of grooves are formed with 3 to 5 pairs at regular intervals. 14. The method according to any one of claims 8 to 13,
The cap is made of Pyridinium p-toluenesulfonate (PPTS) or Polytetrafluoroethylene (PTFE, Teflon). 14. The method according to any one of claims 8 to 13,
Wherein the spacer is a metal spring having elasticity and is coated with 1,1-Nylon on the entire surface thereof.

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