CN218320783U - Dielectric barrier discharge ozone generation cavity - Google Patents
Dielectric barrier discharge ozone generation cavity Download PDFInfo
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- CN218320783U CN218320783U CN202222353368.9U CN202222353368U CN218320783U CN 218320783 U CN218320783 U CN 218320783U CN 202222353368 U CN202222353368 U CN 202222353368U CN 218320783 U CN218320783 U CN 218320783U
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Abstract
The utility model provides a dielectric barrier discharge ozone generating cavity, which comprises a cooling water sleeve, a dielectric body-inner electrode component, a flange and a high-voltage leading-out electric connector; the cooling water sleeve is characterized in that flanges are fixed at two ends of the cooling water sleeve, an ozone outlet is formed in one end of the cooling water sleeve, an oxygen/air inlet is formed in the other end of the cooling water sleeve, a high-voltage leading-out electric connector is arranged at the outer end of the inner electrode lead connector, a dielectric body-inner electrode assembly is arranged in the cooling water sleeve, and sealing support blocks are arranged at two ends of the dielectric body-inner electrode assembly respectively. The utility model discloses a better dielectric layer supports mounting structure, reduces the dielectric layer atress as far as possible to for reducing dielectric layer thickness and providing the condition, improved ozone production efficiency.
Description
Technical Field
The utility model relates to an ozone preparation technical field specifically is a dielectric barrier discharge ozone takes place chamber.
Background
The Dielectric Barrier Discharge (DBD) method is a commonly used method of generating ozone. The principle is that an insulating dielectric layer is arranged between two electrodes, high-voltage high-frequency current is conducted to the electrodes, and gas between the two electrodes is subjected to discharge treatment through the dielectric layer. When the gas contains an oxygen component, ozone (O3) is generated. Factors influencing the ozone generation efficiency are mainly dielectric body performance, generation cavity temperature, air gap size and the like. Under the same condition, the larger the equivalent capacitance of the dielectric body is, the higher the generating efficiency is, and the lower the generating voltage is, thereby being beneficial to saving energy and prolonging the service life of the generating cavity. Since the generated ozone is corrosive and the microscopic temperature at the time of discharge is several thousand degrees, the dielectric material is generally made of a high temperature resistant material such as ceramic, glass, or quartz. These materials generally have a low dielectric constant, and in order to obtain a good effect, the equivalent capacitance is usually improved by reducing the thickness. The ideal dielectric material thickness should be as thin as possible. However, the reduction of the thickness causes the mechanical strength of the dielectric layer to be reduced, and the structural stability during operation and transportation cannot be ensured. Therefore, a better dielectric layer supporting and mounting structure needs to be designed, and stress on the dielectric layer is reduced as much as possible through reasonable design, so that conditions are provided for reducing the thickness of the dielectric layer.
SUMMERY OF THE UTILITY MODEL
The utility model provides a dielectric barrier discharge ozone generation chamber, which solves the problem in the background technology.
A dielectric barrier discharge ozone generating cavity comprises a cooling water sleeve, a dielectric body-inner electrode assembly, a flange and a high-voltage lead-out electric connector; the cooling water sleeve comprises an outer sleeve and an inner sleeve, the outer sleeve is sleeved on the outer side of the inner sleeve to form a concentric sealing structure, a cooling cavity is arranged between the outer sleeve and the inner sleeve, cooling water is arranged in the cooling cavity, the cooling cavity is connected with a cooling water interface, flanges are fixed at two ends of the cooling water sleeve, an ozone outlet is arranged on one end of each flange, an oxygen/air inlet is arranged on the other end of each flange, an inner electrode lead interface is arranged on one side of each oxygen/air inlet, a high-voltage leading-out electric connector is arranged at the outer end of each inner electrode lead interface, a dielectric body-inner electrode assembly is arranged in the cooling water sleeve, sealing supporting blocks are respectively arranged at two ends of each dielectric body-inner electrode assembly, and the sealing supporting blocks are in contact with the flanges.
Flanges at two ends are connected to two ends of the cooling water sleeve to form an internal sealed cavity, gas inlet and outlet mounting holes are formed in the flanges, the flanges are connected with an external gas source and output ozone gas, and the flanges simultaneously play a role in fixing the dielectric body-inner electrode assembly.
Furthermore, the dielectric body-inner electrode assembly comprises two support rods, two conductive elastic sheets and a dielectric body, the support rods are arranged at the center of the cooling water sleeve through two sealing support blocks, the two dielectric bodies are arranged on two sides of the support rods respectively through the two sealing support blocks, a gap is formed between the dielectric body and the cooling water sleeve, a connecting block is arranged at the tail end of the support rod close to one side of an oxygen/air inlet, the conductive elastic sheets are arranged on the connecting block, the conductive elastic sheets are in contact with the dielectric body, and the connecting block is connected with a high-voltage lead-out electric connector through a lead and an inner electrode lead connector and penetrates out of the high-voltage lead-out electric connector.
The dielectric is a main component of dielectric barrier discharge, and the dielectric barrier is the dielectric barrier.
The seal support block serves to support the dielectric and provide a seal.
The support bars provide mechanical strength, maintain the dielectric-inner electrode assembly geometry, and provide conductive paths for conducting current to the inner wall coated conductive layer, while providing connection points.
Furthermore, a sealing ring is arranged between the dielectric body and the sealing support block, and the sealing ring is made of silica gel.
Two sealing rings are arranged on each side, the inner part is used for sealing, and the outer part is used for damping, so that the dielectric body is prevented from being damaged due to overlarge stress during installation.
Furthermore, the support rod is made of stainless steel.
Further, the cooling water sleeve is fixedly connected with the flange through a flange fastening screw.
Further, the dielectric body is cylindrical and made of glass or ceramic.
The thickness of the dielectric layer can reach 0.6mm at least under the condition of adopting quartz glass.
Furthermore, each side of the edge of the sealing support block is provided with three positioning bulges, and the positioning bulges are connected with the inner wall of the cooling water sleeve in a clamping manner.
The dielectric support block has 3 locating projections on each side of the edge, which provide radial location for the dielectric-inner electrode assembly through the cooling water sleeve inner barrel, keeping them concentric.
Further, the flange is provided with a support leg towards the inside, and the support leg is in contact with the sealing support block.
Which has legs at the inner portion that provide axial positioning of the dielectric-inner electrode assembly.
Furthermore, the inner wall of the dielectric body is coated with a conductive layer, and the part which is overlapped with the sealing support block is not coated.
The coated conductive layer is contacted with the conductive elastic sheet and is connected with the lead-out wire through the support rod to form an inner electrode conductive path.
Further, a flange sealing ring is arranged between the cooling water sleeve and the flange.
The utility model discloses be equipped with following beneficial effect:
1. the design implements the principle of reducing the stress of the dielectric layer as much as possible.
2. The conductive coating material is an elastic material, and the stress is small when the temperature changes.
3. The electric connection mode is of a spring sheet type and basically has no stress.
4. The sealing adopts the side surface sealing of the inner wall, the stress is the elastic force of the sealing ring, the radial stress can be reduced to an acceptable degree through reasonable optimization, and the dielectric layer and the dielectric body supporting block are supported by the rubber ring in an elastic way, so that the dielectric layer can be prevented from being damaged by vibration in transportation.
5. The axial positioning of the whole dielectric body component adopts a limiting mode, and the dielectric body component can move in a small axial range, so that the dielectric layer is not subjected to axial stress.
6. The ozone generation efficiency is improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Wherein, 1-cooling water sleeve outer sleeve, 101-inner sleeve, 102-outer sleeve, 103-cooling cavity, 104-cooling water interface, 2-dielectric body-inner electrode assembly, 201-support rod, 202-conductive elastic sheet, 203-dielectric body, 204-connecting block, 3-flange, 4-high voltage leading-out electric connector, 5-flange fastening screw, 6-ozone outlet, 7-oxygen/air inlet, 8-inner electrode leading-out interface, 9-lead, 10-sealing support block, 11-sealing ring, 12-positioning projection and 13-support leg.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
A dielectric barrier discharge ozone generating cavity comprises a cooling water sleeve 1, a dielectric body-inner electrode assembly 2, a flange 3 and a high-voltage leading-out electric connector 4; the cooling water sleeve 1 comprises an outer sleeve 101 and an inner sleeve 102, the outer sleeve 101 is sleeved on the outer side of the inner sleeve 102 to form a concentric sealing structure, a cooling cavity 103 is arranged between the outer sleeve 101 and the inner sleeve 102, cooling water is arranged in the cooling cavity 103, the cooling cavity 103 is connected with a cooling water connector 104, flanges 3 are fixed at two ends of the cooling water sleeve 1, an ozone outlet 6 is arranged on one end of each flange 3, an oxygen/air inlet 7 is arranged on the other end of each flange 3, an inner electrode lead connector 8 is arranged on one side of each oxygen/air inlet 7, a high-voltage lead-out connector 4 is arranged at the outer end of each inner electrode lead connector 8, a dielectric body-inner electrode assembly 2 is arranged in the cooling water sleeve 1, sealing support blocks 10 are respectively arranged at two ends of the dielectric body-inner electrode assembly 2, and the sealing support blocks 10 are abutted to the flanges 3.
The flanges at two ends are connected to two ends of the cooling water sleeve to form an internal sealed cavity, the flanges are provided with air inlet and outlet mounting holes for connecting an external air source and outputting ozone gas, and the flanges simultaneously play a role in fixing the dielectric body-inner electrode assembly.
Specifically, the dielectric body-inner electrode assembly 2 comprises a support rod 201, two conductive elastic sheets 202 and a dielectric body 203, wherein the support rod 201 is arranged at the center of the cooling water sleeve 1 through a sealing support block 10, the number of the dielectric bodies 203 is two, the two dielectric bodies are respectively arranged at two sides of the support rod 201 through the sealing support block 10, a gap is arranged between the dielectric body 203 and the cooling water sleeve 1, a connection block 204 is arranged at the tail end of the support rod 201 close to one side of an oxygen/air inlet 7, the conductive elastic sheets 202 are arranged on the connection block 204, the conductive elastic sheets 202 are in contact with the dielectric body 203, and the connection block 204 is connected with a high-voltage lead-out electric connector 4 through a lead wire 9 and an inner electrode lead connector 8 and penetrates out of the high-voltage lead-out electric connector 4.
The dielectric is a main component of dielectric barrier discharge, and the dielectric barrier is the dielectric barrier.
The seal support block serves to support the dielectric and provide a seal.
The support rods provide mechanical strength, maintain the dielectric-inner electrode assembly geometry, and provide conductive pathways to conduct current to the inner wall coated conductive layer while providing connection points.
Specifically, a sealing ring 11 is arranged between the dielectric body 203 and the sealing support block 10, and the sealing ring 11 is made of a silicone material.
Two sealing rings are arranged on each side, the inner part is used for sealing, and the outer part is used for damping, so that the dielectric body is prevented from being damaged due to overlarge stress during installation.
Specifically, the support rod 201 is made of stainless steel.
Specifically, the cooling water sleeve 1 and the flange 3 are fixedly connected through a flange fastening screw 5.
Specifically, the dielectric body 203 is cylindrical and is made of glass or ceramic.
Specifically, each edge of the sealing support block 10 is provided with three positioning protrusions 12, and the positioning protrusions 12 are connected with the inner wall of the cooling water sleeve 1 in a clamping mode.
The dielectric support block has 3 locating projections on each side of the edge, which provide radial location for the dielectric-inner electrode assembly through the cooling water sleeve inner barrel, keeping them concentric.
In particular, said flange 3 is provided internally with feet 13, said feet 13 being in contact with the seal support block 10.
Which has legs inward to provide axial positioning of the dielectric-inner electrode assembly.
Specifically, the inner wall of the dielectric body 203 is coated with a conductive layer, and the portion overlapping with the seal support block 10 is not coated.
The coated conducting layer is contacted with the conducting elastic sheet and is connected with the lead-out wire through the supporting rod to form an inner electrode conducting path.
Specifically, a flange seal ring 14 is provided between the cooling water jacket 1 and the flange 3.
Referring to fig. 1, fig. 1 illustrates the overall structure of the present invention, including a cooling water jacket 1, a dielectric-inner electrode assembly 2, a flange 3, and a high-voltage lead-out electric connector 4; the cooling water sleeve 1 comprises an outer sleeve 101 and an inner sleeve 102, the outer sleeve 101 is sleeved outside the inner sleeve 102 to form a concentric sealing structure, a cooling cavity 103 is arranged between the outer sleeve 101 and the inner sleeve 102, cooling water is arranged in the cooling cavity 103, the cooling cavity 103 is connected with a cooling water interface 104, flanges 3 are fixed at two ends of the cooling water sleeve 1, a flange sealing ring 14 is arranged between the cooling water sleeve 1 and the flanges 3, the cooling water sleeve 1 and the flanges 3 are fixedly connected through flange fastening screws 5, an ozone outlet 6 is arranged on the flange 3 at one end, an oxygen/air inlet 7 is arranged on the flange 3 at the other end, an inner electrode lead interface 8 is arranged at one side of the oxygen/air inlet 7, a high-voltage leading-out electric connector 4 is arranged at the outer end of the inner electrode lead interface 8, and a dielectric-inner electrode assembly 2 is arranged in the cooling water sleeve 1, the two ends of the dielectric body-inner electrode assembly 2 are respectively provided with a sealing support block 10, each edge of the sealing support block 10 is provided with three positioning protrusions 12, the positioning protrusions 12 are connected with the inner wall of the cooling water sleeve 1 in a clamping manner, the dielectric body-inner electrode assembly 2 comprises a support rod 201, a conductive elastic sheet 202 and a dielectric body 203, the support rod 201 is arranged at the center of the cooling water sleeve 1 through the sealing support blocks 10, the two dielectric bodies 203 are respectively arranged at the two sides of the support rod 201 through the sealing support blocks 10, the inner wall of the dielectric body 203 is coated with a conductive layer, the part which is overlapped with the sealing support block 10 is not coated, a sealing ring 11 is arranged between the dielectric body 203 and the sealing support block 10, the sealing ring 11 is made of silica gel, and a gap is arranged between the dielectric body 203 and the cooling water sleeve 1, the tail end of the supporting rod 201 close to one side of the oxygen/air inlet 7 is provided with a connecting block 204, the connecting block 204 is provided with a conductive elastic sheet 202, the conductive elastic sheet 202 is in contact with the dielectric body 203, the connecting block 204 is connected with a high-voltage lead-out electric connector 4 through a lead 9 and an inner electrode lead connector 8 and penetrates out of the high-voltage lead-out electric connector 4, the sealing supporting block 10 is abutted to the flange 3, the flange 3 is internally provided with supporting legs 13, and the supporting legs 13 are in contact with the sealing supporting block 10.
The working steps are as follows: the circuit is connected to the cooling water sleeve and two poles of the high-voltage leading-out electric connector, and a Dielectric Barrier (DBD) discharge consisting of an inner conducting layer-dielectric body-working gas-cooling water sleeve is formed by applying high-frequency high-voltage alternating current.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A dielectric barrier discharge ozone generating chamber, comprising: comprises a cooling water sleeve (1), a dielectric body-inner electrode component (2), a flange (3) and a high-voltage lead-out electric connector (4); the cooling water sleeve (1) comprises an outer sleeve (101) and an inner sleeve (102), the outer sleeve (101) is sleeved on the outer side of the inner sleeve (102) to form a concentric sealing structure, a cooling cavity (103) is arranged between the outer sleeve (101) and the inner sleeve (102), cooling water is arranged in the cooling cavity (103), the cooling cavity (103) is connected with a cooling water interface (104), flanges (3) are fixed at two ends of the cooling water sleeve (1), an ozone outlet (6) is arranged on the flange (3) at one end, an oxygen/air inlet (7) is arranged on the flange (3) at the other end, an inner electrode lead interface (8) is arranged on one side of the oxygen/air inlet (7), a high-pressure leading-out electric connector (4) is arranged at the outer end of the inner electrode lead interface (8), a dielectric body-inner electrode assembly (2) is arranged inside the cooling water sleeve (1), sealing supporting blocks (10) are respectively arranged at two ends of the dielectric body-inner electrode assembly (2), and the sealing supporting blocks (10) are abutted against the flanges (3).
2. The dielectric barrier discharge ozone generation chamber of claim 1, wherein: the dielectric body-inner electrode assembly (2) comprises a supporting rod (201), two conductive elastic sheets (202) and a dielectric body (203), wherein the supporting rod (201) is arranged at the center of the cooling water sleeve (1) through a sealing supporting block (10), the two dielectric bodies (203) are respectively arranged on two sides of the supporting rod (201) through the sealing supporting block (10), a gap is formed between the dielectric body (203) and the cooling water sleeve (1), a connecting block (204) is arranged at the tail end of the supporting rod (201) close to one side of an oxygen/air inlet (7), the conductive elastic sheets (202) are arranged on the connecting block (204), the conductive elastic sheets (202) are in contact with the dielectric body (203), and the connecting block (204) is connected with a high-voltage leading-out electric connector (4) through a lead wire (9) and an inner electrode lead connector (8) and penetrates out of the high-voltage leading-out electric connector (4).
3. The dielectric barrier discharge ozone generation chamber of claim 1, wherein: a sealing ring (11) is arranged between the dielectric body (203) and the sealing support block (10), and the sealing ring (11) is made of silica gel.
4. The dielectric barrier discharge ozone generation chamber of claim 3, wherein: the support rod (201) is made of stainless steel.
5. The dielectric barrier discharge ozone generation chamber of claim 1, wherein: the cooling water sleeve (1) is fixedly connected with the flange (3) through a flange fastening screw (5).
6. The dielectric barrier discharge ozone generation chamber of claim 1, wherein: the dielectric body (203) is cylindrical and made of glass or ceramic.
7. The dielectric barrier discharge ozone generating chamber as recited in claim 1, wherein: each edge of the sealing support block (10) is provided with three positioning protrusions (12), and the positioning protrusions (12) are connected with the inner wall of the cooling water sleeve (1) in a clamping mode.
8. The dielectric barrier discharge ozone generation chamber of claim 1, wherein: the flange (3) is internally provided with a support leg (13), and the support leg (13) is in contact with the sealing support block (10).
9. The dielectric barrier discharge ozone generating chamber as recited in claim 2, wherein: the inner wall of the dielectric body (203) is coated with a conductive layer, and the part which is overlapped with the sealing support block (10) is not coated.
10. The dielectric barrier discharge ozone generation chamber of claim 1, wherein: and a flange sealing ring (14) is arranged between the cooling water sleeve (1) and the flange (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222353368.9U CN218320783U (en) | 2022-09-05 | 2022-09-05 | Dielectric barrier discharge ozone generation cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222353368.9U CN218320783U (en) | 2022-09-05 | 2022-09-05 | Dielectric barrier discharge ozone generation cavity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218320783U true CN218320783U (en) | 2023-01-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222353368.9U Active CN218320783U (en) | 2022-09-05 | 2022-09-05 | Dielectric barrier discharge ozone generation cavity |
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|---|---|
| CN (1) | CN218320783U (en) |
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2022
- 2022-09-05 CN CN202222353368.9U patent/CN218320783U/en active Active
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