CN214570749U - Ozone generating tube - Google Patents

Abstract

An ozone generating tube comprising: the electrode assembly comprises an outer electrode body, an inner electrode body, a dielectric body, a first fixed disc, an insulating tube and a drainage assembly; the outer electrode body is provided with an opening; the inner electrode body is accommodated in the outer electrode body; the dielectric body is positioned between the outer electrode body and the inner electrode body, and a discharge gap is reserved between the dielectric body and the outer electrode body; the first fixed disc is used for being abutted against the opening of the outer electrode body, so that a sealed environment is formed inside the outer electrode body; the insulating tube penetrates through the first fixing disc; the outer side of the insulating tube is integrally connected with the first fixed disc; the drainage component penetrates into the outer electrode body from the insulating tube and inputs voltage to the inner electrode body. In the combined assembly process of the ozone generating tube, the insulating tube is integrally connected with the first fixed disk, so that a gap between the insulating tube and the first fixed disk can be eliminated, and the sealing property and the assembly efficiency of the ozone generating tube are effectively improved; prevent moisture, dust or other impurities from entering the discharge gap, and avoid the problem of high-voltage ignition in the discharge gap.

Description

Ozone generating tube

Technical Field

The utility model relates to a preparation facilities of ozone especially relates to an ozone generating tube.

Background

Generally, an ozone generator includes a dielectric tube made of a dielectric material such as glass, and a conductive mold as a first electrode is formed on an inner surface of the dielectric tube, and the conductive mold and the dielectric tube together constitute a dielectric electrode. A cylindrical second electrode is provided outside the dielectric tube so as to surround the first electrode. A spacer is interposed between the dielectric tube and the second electrode to form a minute discharge gap (gap). While a material gas containing oxygen flows through the discharge gap, a high voltage is applied between the first electrode and the second electrode, and a silent discharge occurs in the discharge gap. The silent discharge causes ozonization of oxygen contained in the ozone generating gas to generate ozonized gas.

Because high pressure needs to be introduced into the ozone generating device, the existing ozone generating device has insufficient sealing property. After the ozone generating device is used for a long time, moisture, dust or other impurities can enter the discharge gap, and under the influence of the impurities, the problem of high-voltage ignition is caused in the discharge gap.

SUMMERY OF THE UTILITY MODEL

In view of this, it is necessary to provide an ozone generating tube that addresses the problem of high-pressure sparking in the discharge gap due to insufficient sealing properties.

An ozone generating tube comprising:

an outer electrode body provided with an opening;

an inner electrode body housed in the outer electrode body;

a dielectric body between the outer electrode body and the inner electrode body, the dielectric body and the outer electrode body leaving a discharge gap therebetween;

the first fixed disk is used for being abutted against the opening of the outer electrode body so as to form a sealed environment inside the outer electrode body;

the insulating tube penetrates through the first fixing disc; the outer side of the insulating tube is integrally connected with the first fixed disc; and

and the drainage assembly penetrates into the outer electrode body from the insulating pipe and inputs voltage to the inner electrode body.

When the ozone generating tube is used, one end of a high-voltage power supply is connected to the outer electrode body, and the other end of the high-voltage power supply is connected to the inner electrode body through the drainage assembly, so that a discharge gap between the outer electrode body and the dielectric body forms discharge under the action of high voltage. The outer electrode body is provided with a gas inlet and a gas outlet, raw material gas containing oxygen is introduced into the discharge gap from the gas inlet, and high-voltage discharge in the discharge gap enables the gas raw material to generate ozone, and then the ozone is discharged from the gas outlet. In the combined assembly process of the ozone generating tube, the inner electrode body and the dielectric body are placed into the outer electrode body from the opening, and the insulating tube and the first fixing disk are integrally connected under the condition that the first fixing disk is abutted against the opening of the outer electrode body and the first fixing disk is fixed relative to the outer electrode body and the drainage assembly is abutted against the inner wall of the insulating tube, so that a gap between the insulating tube and the first fixing disk can be eliminated, and the sealing performance and the assembly efficiency of the ozone generating tube are effectively improved; prevent moisture, dust or other impurities from entering the discharge gap, and avoid the problem of high-voltage ignition in the discharge gap.

In one embodiment, the method further comprises one of the following technical characteristics:

the first fixed disc has corrosion resistance;

the first fixed disk is a ceramic fixed disk; thereby providing a long-term stable sealing action for the outer electrode body.

In one embodiment, the fuel cell further comprises a second fixed disk connected with the external electrode body, wherein the second fixed disk is close to the opening of the external electrode body; the second fixed disk is fixedly connected with the first fixed disk; so that the opening of the outer electrode body can be held against the surface of the first fixed disk.

In one embodiment, the outer electrode body is extended with an outward-turned flange at the edge of the opening, the outward-turned flange is perpendicular to the length direction of the outer electrode body and extends to the outer side of the outer electrode body; the second fixed disk is sleeved outside the outer electrode body, and the outward-turning flange is abutted between the first fixed disk and the second fixed disk; therefore, welding and fixing between the second fixed disc and the outer electrode body are not needed, and the reduction of the sealing performance caused by welding gaps is avoided.

In one embodiment, an annular groove is formed in one side, facing the second fixed disk, of the first fixed disk; a sealing ring is accommodated in the annular groove and is abutted with the outward-turning flange or the second fixed disc; thereby further strengthening the leakproofness between first fixed disk and the outer electrode body opening.

In one embodiment, the drainage assembly comprises a conductive strip fixedly arranged in the insulating tube and a flexible electric conductor connected with the conductive strip; the conductive strips are connected with the inner electrode body through the flexible conductors; therefore, the flexible electric conductor and the inner electrode body can be prevented from being disconnected in the assembling process, and the electric stability is ensured.

In one embodiment, the flexible electrical conductor is a stainless steel braid; therefore, the corrosion influence of oxygen or ozone on the flexible electric conductor can be reduced, and the service life is ensured.

In one embodiment, a disc-shaped part extends from the outer side of the insulating tube, and the disc-shaped part is positioned on the side, facing away from the outer electrode body, of the first fixed disc; thereby increasing the creepage distance between the insulating tube and the surface of the first fixing disc.

In one embodiment, the disc-shaped part is a plurality of disc-shaped parts, and the disc-shaped parts are distributed along the axial direction of the insulation pipe; thereby the creepage distance of insulating tube and first fixed disk surface can further be increased.

In one embodiment, the method further comprises at least one of the following technical characteristics:

the insulating tube extends into the outer electrode body;

and a radiating fin is connected to the outer side of the outer electrode body.

Drawings

FIG. 1 is a front view of an ozone generating tube according to an embodiment of the present invention;

FIG. 2 is an enlarged view of the ozone generating tube shown in FIG. 1 at A;

FIG. 3 is a side view of the ozone generating tube shown in FIG. 1;

FIG. 4 is a cross-sectional view of the ozone generating tube shown in FIG. 3 in the BB direction;

FIG. 5 is an enlarged view of the ozone generating tube shown in FIG. 4 at C;

FIG. 6 is an enlarged view of the ozone generating tube shown in FIG. 4 at D;

FIG. 7 is an enlarged view of the ozone generating tube shown in FIG. 4 at E;

fig. 8 is a plan view of the ozone generating tube shown in fig. 3.

The corresponding relation between each reference number and each meaning in the drawings is as follows:

100. an ozone generating tube; 20. an outer electrode body; 21. an opening; 22. an air inlet; 23. an air outlet; 24. flanging the flange outwards; 25. a heat sink; 30. an inner electrode body; 40. a dielectric body; 41. a discharge gap; 50. a first fixed disk; 51. mounting holes; 60. an insulating tube; 61. a disk-shaped portion; 70. a drainage assembly; 71. a conductive strip; 72. a flexible electrical conductor; 73. a second nut member; 74. a second bolt member; 80. a second fixed disk; 81. a first bolt member; 82. a first nut member; 900. a high voltage electrical conductor.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1 to 8, an ozone generating tube 100 according to an embodiment of the present invention is used for introducing a raw material gas containing oxygen to generate ozone under a high voltage environment. The ozone generating tube 100 includes: the electrode assembly comprises an outer electrode body 20, an inner electrode body 30, a dielectric body 40, a first fixed disk 50, an insulating tube 60 and a drainage assembly 70; the outer electrode body 20 is provided with an opening 21; the inner electrode body 30 is housed in the outer electrode body 20; the dielectric body 40 is positioned between the outer electrode body 20 and the inner electrode body 30, and a discharge gap 41 is reserved between the dielectric body 40 and the outer electrode body 20; the first fixing disk 50 is used for abutting against the opening 21 of the external electrode body 20, so that a sealed environment is formed inside the external electrode body 20; the insulating tube 60 penetrates the first fixing disk 50; the outer side of the insulating tube 60 is integrally connected with the first fixed disk 50; the current guiding member 70 penetrates from the insulating tube 60 into the outer electrode body 20, and inputs a voltage to the inner electrode body 30.

When the ozone generating tube 100 is used, one end of a high voltage power supply is connected to the outer electrode body 20, and the other end is connected to the inner electrode body 30 through the current guiding assembly 70, so that the discharge gap 41 between the outer electrode body 20 and the dielectric body 40 forms a discharge under the action of high voltage. The outer electrode body 20 is provided with a gas inlet 22 and a gas outlet 23, and a raw material gas containing oxygen is introduced into the discharge gap 41 from the gas inlet 22, and the high-voltage discharge in the discharge gap 41 causes the gas raw material to generate ozone, which is then discharged from the gas outlet 23. In the process of assembling the ozone generating tube 100, the inner electrode body 30 and the dielectric body 40 are placed into the outer electrode body 20 from the opening 21, the insulating tube 60 and the first fixing disk 50 are integrally connected under the condition that the first fixing disk 50 is abutted against the opening 21 of the outer electrode body 20 and is fixed relative to the outer electrode body 20, and the drainage assembly 70 is abutted against the inner wall of the insulating tube 60, so that the gap between the insulating tube 60 and the first fixing disk 50 can be eliminated, and the sealing performance and the assembling efficiency of the ozone generating tube 100 are effectively improved; moisture, dust or other impurities are prevented from entering the discharge gap 41, and the problem of high-voltage sparking in the discharge gap 41 is avoided. Specifically, the outer electrode body 20, the inner electrode body 30, and the dielectric body 40 extend in a tubular shape.

In one embodiment, the first fixed disk 50 has corrosion resistance; specifically, it may be that the entire first fixed disk 50 has corrosion resistance or the abutting surface of the first fixed disk 50 and the external electrode body 20 has corrosion resistance, so as to avoid the oxidation problem after the first fixed disk 50 is contacted with the oxygen-containing raw material gas for a long time, and provide a long-term stable sealing function for the external electrode body 20. Further, in order to prevent the first fixed disk 50 from burning under the condition of high-voltage ignition in the discharge gap 41, the first fixed disk 50 has flame retardancy, and specifically, the first fixed disk 50 and the insulating tube 60 may be made of ceramic materials. Further, the insulating tube 60 and the first fixed disk 50 may be integrally formed of ceramic.

Referring to fig. 4 to 6, in one embodiment, the ozone generating tube 100 further includes a second fixed disk 80 connected to the outer electrode body 20, the second fixed disk 80 being adjacent to the opening 21 of the outer electrode body 20; the second fixed disk 80 is fixedly coupled to the first fixed disk 50.

By the relative fixation of the first fixing disk 50 and the second fixing disk 80, the opening 21 of the external electrode body 20 can be kept against the surface of the first fixing disk 50, and external moisture, dust or other impurities can be prevented from entering the external electrode body 20. Alternatively, the second fixing disk 80 is fixedly connected to the outside of the outer electrode body 20. In the present embodiment, in order to relatively fix the first fixed disk 50 and the second fixed disk 80, the first fixed disk 50 and the second fixed disk 80 are respectively provided with the mounting holes 51, and the first bolt 81 passes through the mounting holes 51 of the first fixed disk 50 and the second fixed disk 80 and then is sleeved with the first nut 82, so that the first fixed disk 50 and the second fixed disk 80 can be relatively fixed.

Referring to fig. 4 to 6, in one embodiment, the outer electrode body 20 is extended with an outward flange 24 at the edge of the opening 21, the outward flange 24 is perpendicular to the length direction of the outer electrode body 20, and the outward flange 24 is extended to the outside of the outer electrode body 20; the second fixed disk 80 is sleeved outside the outer electrode body 20, and the outward-turned flange 24 abuts between the first fixed disk 50 and the second fixed disk 80.

When the second fixed disk 80 is fixedly connected to the first fixed disk 50, the second fixed disk 80 pushes and presses the outward-turned flange 24, so that the outward-turned flange 24 and the opening 21 of the external electrode body 20 are attached to the first fixed disk 50, and sealing is realized; preferably, the evagination flange 24 is ring-shaped to reduce the generation of burrs and to prevent the dielectric body 40 from being damaged by the removal of the burrs.

In one embodiment, the first fixed disk 50 is provided with an annular groove on the side facing the second fixed disk 80; the annular groove accommodates a sealing ring which abuts against the out-turned flange 24 or the second fixed disk 80. By providing the seal ring between the first fixed disk 50 and the second fixed disk 80, the seal ring having elasticity is deformed and held in contact with each other, whereby the sealing property between the first fixed disk 50 and the opening 21 of the external electrode body 20 can be further enhanced.

Referring to fig. 4, 5 and 7, in one embodiment, the current guiding assembly 70 includes a conductive strip 71 fixedly disposed in the insulating tube 60 and a flexible conductor 72 connected to the conductive strip 71; the conductive strips 71 are electrically connected to the inner electrode body 30 by flexible electrical conductors 72 to equalize or approximate the potentials of the two.

In the assembling process of the ozone generating tube 100, the flexible conductor 72 is beneficial to adjusting the relative position between the first fixing disk 50 or the insulating tube 60 and the inner electrode body 30 through deformation, so that the flexible conductor 72 is prevented from being disconnected from the inner electrode body 30 in the assembling process, and the electrical stability is ensured. Specifically, the conductive strip 71 may be inserted into the insulating tube 60 and the first fixing plate 50 during ceramic molding, so that the insulating tube 60 and the conductive strip 71 are sufficiently attached to each other, and the sealing performance is ensured. The end of the conductive bar 71 exposed outside the first fixing plate 50 is connected to the high voltage electrical lead 900, specifically, the lug connected to the high voltage electrical lead 900 is sleeved on the end of the conductive bar 71, and then the nut member fixes the lug. Two ends of the flexible conductor 72 are respectively connected with a fixing piece, one of which is sleeved on one end of the conductive bar 71 in the outer electrode body 20 and fixed by a nut member, and the other is fixedly connected with the inner side of the inner electrode body 30 by a second nut member 73 and a second bolt member 74. In this embodiment, the conductive strip 71 is threaded at its end to secure the high voltage electrical lead 900 or the flexible electrical conductor 72 with a nut.

In one embodiment, the flexible electrical conductor 72 is a stainless steel braid. Thereby possess corrosion resistance, reduce the corruption influence that receives oxygen or ozone, guarantee life to can improve the deformability of flexible conductor 72, be favorable to implementing the installation of interior electrode body 30 or first fixed disk 50, and conveniently hold flexible conductor 72 in interior electrode body 30, avoid flexible conductor 72 to drop from interior electrode body 30.

Referring to fig. 5, in one embodiment, a disk-shaped portion 61 extends outside the insulating tube 60, and the disk-shaped portion 61 is located on a side of the first fixed disk 50 facing away from the outer electrode body 20. The disk-shaped part 61 is arranged on the outer side of the insulating tube 60, so that the creepage distance between the insulating tube 60 and the surface of the first fixing disk 50 is increased, and direct discharge between the high-voltage electrical conductor 900 and the outer electrode body 20 along the insulating tube 60 and the surface of the first fixing disk 50 is avoided.

Referring to fig. 5, in one embodiment, the number of the disk-shaped portions 61 is multiple, and the multiple disk-shaped portions 61 are distributed along the axial direction of the insulating tube 60. Thereby further increasing the creepage distance between the surface of the insulating tube 60 and the first fixed disk 50.

Referring to fig. 4 and 5, in one embodiment, the insulating tube 60 extends into the outer electrode body 20, and a gap is left between the insulating tube 60 and the inner electrode body 30. Therefore, the creepage distance between the end of the conductive strip 71 connected with the flexible conductor 72 and the outer electrode 20 can be increased, and the discharge between the end of the conductive strip 71 connected with the flexible conductor 72 and the outer electrode 20 along the surface of the first fixing disk 50 can be avoided.

Referring to fig. 4 and 8, in one embodiment, a heat sink 25 is connected to an outer side of the external electrode 20. Thereby improving the heat radiation effect of the outer electrode body 20 and realizing the continuous operation of the ozone generating tube 100.

In this embodiment, when the ozone generating tube 100 is used, one end of the high voltage power supply is connected to the outer electrode body 20, and the other end is connected to the inner electrode body 30 through the current guiding assembly 70, so that the discharge gap 41 between the outer electrode body 20 and the dielectric body 40 forms a discharge under the action of high voltage. The outer electrode body 20 is provided with a gas inlet 22 and a gas outlet 23, and a raw material gas containing oxygen is introduced into the discharge gap 41 from the gas inlet 22, and the high-voltage discharge in the discharge gap 41 causes the gas raw material to generate ozone, which is then discharged from the gas outlet 23. In the process of assembling the ozone generating tube 100, the inner electrode body 30 and the dielectric body 40 are placed into the outer electrode body 20 from the opening 21, the insulating tube 60 and the first fixing disk 50 are integrally connected under the condition that the first fixing disk 50 is abutted against the opening 21 of the outer electrode body 20 and is fixed relative to the outer electrode body 20, and the drainage assembly 70 is abutted against the inner wall of the insulating tube 60, so that the gap between the insulating tube 60 and the first fixing disk 50 can be eliminated, and the sealing performance and the assembling efficiency of the ozone generating tube 100 are effectively improved; moisture, dust or other impurities are prevented from entering the discharge gap 41, and the problem of high-voltage sparking in the discharge gap 41 is avoided.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. An ozone generating tube, comprising:

an outer electrode body provided with an opening;

an inner electrode body housed in the outer electrode body;

a dielectric body between the outer electrode body and the inner electrode body, the dielectric body and the outer electrode body leaving a discharge gap therebetween;

the first fixed disk is used for being abutted against the opening of the outer electrode body so as to form a sealed environment inside the outer electrode body;

the insulating tube penetrates through the first fixing disc; the outer side of the insulating tube is integrally connected with the first fixed disc; and

a current guiding assembly penetrating from the insulating tube into the outer electrode body and inputting a voltage to the inner electrode body; the drainage assembly comprises a conductive bar fixedly arranged in the insulating tube in a penetrating way and a flexible conductor connected with the conductive bar; the conducting strips are connected with the inner electrode body through the flexible electric conductors.

2. The ozone generating channel of claim 1, further comprising one of the following technical features:

the first fixed disc has corrosion resistance;

the first fixed disk is a ceramic fixed disk.

3. The ozone generating tube as recited in claim 1, further comprising a second fixed disk that is connected to the outer electrode body, the second fixed disk being adjacent to the opening of the outer electrode body; the second fixed disk is fixedly connected with the first fixed disk.

4. The ozone generating tube as claimed in claim 3, wherein the outer electrode body is extended at the edge of the opening with an outward-turned flange which is perpendicular to the length direction of the outer electrode body and is extended to the outside of the outer electrode body; the second fixed disk is sleeved outside the outer electrode body, and the outward-turning flange is abutted between the first fixed disk and the second fixed disk.

5. The ozone generating tube of claim 4, wherein the first fixed disk is provided with an annular groove on a side facing the second fixed disk; and a sealing ring is accommodated in the annular groove and is abutted with the outward-turning flange or the second fixed disk.

6. The ozone generating tube as claimed in claim 1, wherein the flexible conductor has two ends connected to a fixing piece respectively, and the fixing piece connected to one end of the flexible conductor is fitted over the end of the conductive strip in the outer electrode; and the fixing piece connected with the other end of the flexible conductor is fixedly connected with the inner side of the inner electrode body.

7. The ozone generating tube of claim 1, wherein the flexible electrical conductor is a stainless steel braid.

8. The ozone generating tube as claimed in claim 1, wherein a disk-shaped portion extends from an outer side of the insulating tube, the disk-shaped portion being on a side of the first fixed disk facing away from the outer electrode body.

9. The ozone generating tube as claimed in claim 8, wherein the disk-shaped portion is plural, and the plural disk-shaped portions are distributed along an axial direction of the insulating tube.

10. The ozone generating channel of claim 1, further comprising at least one of the following technical features:

the insulating tube extends into the outer electrode body;

and a radiating fin is connected to the outer side of the outer electrode body.

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