Corona tube of ozone generator
By employing a combination of air cooling and liquid cooling in the corona tube, the performance degradation caused by excessive temperature in the corona tube is solved, resulting in more efficient ozone generation and extended service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO JIAO ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-12
AI Technical Summary
In existing ozone generators, the corona tubes suffer from excessively high temperatures, which affects their ozone generation performance and lifespan.
采用高导热性铜或铝质的螺纹管紧密包覆石英管外壁,形成一级气冷通道,并结合环形散热腔内置螺旋引导板形成二级液冷通道,通过气冷和液冷相结合进行散热。
It effectively prevents the quartz tube from overheating, improving ozone generation performance and service life.
Smart Images

Figure CN224226675U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ozone generator technology, and in particular to an ozone generator corona tube. Background Technology
[0002] Ozone is widely used in water treatment, air purification, food preservation, and various industrial processes due to its strong oxidizing properties. As an effective industrial disinfectant and oxidant, ozone can kill a variety of bacteria, viruses, and fungi, and has significant bactericidal and deodorizing capabilities. Therefore, the technological development of ozone generators has attracted widespread attention in recent years.
[0003] In existing ozone generator technologies, corona discharge has become one of the mainstream ozone generation methods, and the corona tube is the core component of industrial ozone generators. The corona tube ionizes oxygen molecules in the air and converts them into ozone through the principle of corona discharge.
[0004] During the discharge process, both the anode and cathode cells inside the corona tube generate a large amount of heat, leading to excessively high tube wall temperatures. These excessively high temperatures may affect the overall ozone generation performance and lifespan of the corona tube. Utility Model Content
[0005] The purpose of this invention is to solve the problem that excessively high temperatures in the prior art may cause the corona tube to overheat, affecting the ozone generation performance and service life of the corona tube, and to propose an ozone generator corona tube.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] An ozone generator corona tube includes a tube body extending from front to back, a quartz tube sleeved inside the tube body, a corona reaction chamber formed within the cavity of the quartz tube, a corona generating component disposed within the corona reaction chamber, a threaded tube sleeved on the quartz tube, an annular heat dissipation cavity disposed between the tube body and the quartz tube, a spiral guide plate fixedly connected to the inner wall of the annular heat dissipation cavity, the guide plate extending axially along the tube body to form a spiral guide cavity, the threaded tube disposed within the guide cavity, and the threaded tube fitting against the outer wall of the quartz tube.
[0008] To facilitate improved heat dissipation on the outside of the quartz tube, preferably, a groove is formed on the outer wall of the quartz tube, and the threaded tube is connected to the groove through a thermally conductive silicone grease layer, so that the outer wall of the quartz tube and the threaded tube form a surface contact for heat conduction.
[0009] To ensure that the cooling medium fully integrates with the outside of the threaded tube, a forced convection gap of 1mm-4mm is further maintained between the outer edge of the threaded tube and the spiral guide plate.
[0010] To facilitate the delivery of the cooling medium, preferably, the two ends of the annular heat dissipation cavity are respectively fixedly connected to a cooling medium inlet pipe and an outlet pipe.
[0011] In order to deliver cold air into the threaded tube, preferably, the two ends of the threaded tube are respectively connected to an air inlet pipe and an air outlet pipe, which extend to the outside of the tube body.
[0012] To facilitate the detection of the gas temperature generated by the gas outlet pipe, preferably, a temperature sensor is installed on the gas outlet pipe.
[0013] Compared with the prior art, this utility model provides an ozone generator corona tube, which has the following beneficial effects:
[0014] 1. The corona tube of this ozone generator tightly wraps the outer wall of the quartz tube with a threaded tube of high thermal conductivity copper or aluminum to form a primary air-cooling channel, thereby dissipating the temperature generated by the quartz tube during operation in real time and preventing the tube wall temperature from becoming too high.
[0015] 2. The corona tube of this ozone generator forms an annular heat dissipation cavity with the tube body and the quartz tube, and the built-in spiral guide plate forms a two-stage liquid cooling channel, which can dissipate the heat generated by the quartz tube during operation in a timely manner and prevent the tube wall temperature from being too high.
[0016] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model uses a combination of air-cooling and liquid-cooling channels to dissipate heat, which can dissipate the temperature generated by the quartz tube during operation in a timely manner, ensuring that it is within a suitable temperature range, thereby improving the overall ozone generation performance and service life of the quartz tube. Attached Figure Description
[0017] Figure 1 This is a first-view structural schematic diagram of the corona tube of an ozone generator proposed in this utility model;
[0018] Figure 2 This is a schematic diagram of the corona tube of an ozone generator proposed in this utility model from a second perspective.
[0019] Figure 3 This is a partial structural diagram of the corona tube of an ozone generator proposed in this utility model. Figure 1 ;
[0020] Figure 4 This is a partial structural diagram of the corona tube of an ozone generator proposed in this utility model. Figure 2 ;
[0021] Figure 5 This is a cross-sectional schematic diagram of the corona tube of an ozone generator proposed in this utility model.
[0022] In the diagram: 1. Pipe body; 101. Inlet pipe; 102. Outlet pipe; 2. Quartz tube; 3. Groove; 4. Threaded pipe; 401. Air inlet pipe; 402. Air outlet pipe; 5. Guide plate. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0025] Example:
[0026] Reference Figures 1-5 An ozone generator corona tube includes a tube body 1 extending from front to back, with a quartz tube 2 sleeved inside the tube body 1. A corona reaction chamber is formed within the cavity of the quartz tube 2, and a corona generating assembly is installed within the corona reaction chamber. The corona generating assembly mainly includes an anode cell and a cathode cell, with an ionization gap cavity between the quartz tube 2 and the anode cell. A cathode electrode is also installed on the quartz tube 2, and an ozone output nozzle extends to the left of the anode cell. An air inlet is formed on the right side of the quartz tube. Air enters through the air inlet and passes through the ionization gap cavity between the quartz tube 2 and the anode cell. A constant current is passed through the quartz tube 2, causing it to react with the anode and cathode cells to generate ozone, which is then output through the ozone output nozzle. A threaded tube 4 is sleeved on the quartz tube 2 for... Cooling gas is transported, and the threaded tube 4 is made of copper or aluminum. An annular heat dissipation cavity is provided between the tube body 1 and the quartz tube 2. The annular heat dissipation cavity is used to transport cooling medium, such as coolant or cooling water. A spiral guide plate 5 is fixedly connected to the inner wall of the annular heat dissipation cavity. The guide plate 5 extends along the axial direction of the tube body 1 to form a spiral guide cavity. The threaded tube 4 is placed in the guide cavity and is in contact with the outer wall of the quartz tube 2. When the cooling medium enters the annular heat dissipation cavity, the cooling medium will move along the spiral guide cavity formed by the guide plate 5. During the operation, the heat on the outer wall of the quartz tube 2 will be conducted to the threaded tube 4 first. At this time, the cooling gas flowing in the threaded tube 4 will carry some heat, while the cooling medium will carry away the other part of the heat, thus cooling and dissipating heat for the entire quartz tube 2.
[0027] In the above scheme, a high thermal conductivity copper or aluminum threaded tube 4 is used to tightly cover the outer wall of the quartz tube 2 to form a primary air cooling channel. The tube body 1 and the quartz tube 2 form an annular heat dissipation cavity, and the built-in spiral guide plate 5 forms a secondary liquid cooling channel. By cooperating with the air cooling channel and the liquid cooling channel to dissipate heat, the temperature generated by the quartz tube 2 during operation can be dissipated in a timely manner to ensure that it is within a suitable temperature range, thereby improving the overall ozone generation performance and service life of the quartz tube 2.
[0028] A groove 3 is formed on the outer wall of the quartz tube 2, and a threaded tube 4 is connected to the groove 3 through a thermally conductive silicone grease layer. The outer wall of the quartz tube 2 and the threaded tube 4 form a surface contact for heat conduction, thereby ensuring that the threaded tube 4 and the outer wall of the quartz tube 2 form a high-precision surface contact, avoiding local heat accumulation caused by traditional line contact, making the structure of the groove 3 and the temperature distribution of the outer wall of the quartz tube 2 more uniform. Combined with the liquid cooling channel of the spiral guide plate 5, it can efficiently dissipate heat.
[0029] Furthermore, a forced convection gap of 1mm-4mm is maintained between the outer edge of the threaded tube 4 and the spiral guide plate 5 to create a forced turbulence effect. The forced convection gap in this device is 2mm. Compared with a fully enclosed spiral channel, the designed forced convection gap can greatly increase the flow rate of the cooling medium, allowing it to enter a strong turbulent state and significantly enhance the convective heat transfer coefficient. In addition, the gap can also prevent the deposition of tiny impurities in the flow channel.
[0030] Cooling medium inlet pipe 101 and outlet pipe 102 are fixedly connected to both ends of the annular heat dissipation cavity, respectively. The output port of the external cooling medium conveying device can be connected to the inlet pipe 101 for conveying cooling medium, such as a circulating cooling pump. The outlet pipe 102 is used to discharge the cooling medium that has absorbed heat, thereby achieving the effect of circulation.
[0031] An inlet pipe 401 and an outlet pipe 402 are connected to both ends of the threaded pipe 4, respectively. The inlet pipe 401 and the outlet pipe 402 extend to the outside of the pipe body 1, and a temperature sensor is installed on the outlet pipe 402. The outlet of the external cooling medium delivery device can be connected to the inlet pipe 401 to deliver cooling gas, such as a cooling fan. The hot gas is then discharged into the outside air through the outlet pipe 402. The temperature sensor can detect the gas in the quartz tube 2 and adjust the temperature of the cooling medium delivered by the external cooling medium delivery device according to the actual situation.
[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An ozone generator corona tube, comprising a tube body (1) extending through the front and rear, wherein a quartz tube (2) is sleeved inside the tube body (1), a corona reaction chamber is formed within the cavity of the quartz tube (2), and a corona generating component is disposed within the corona reaction chamber, characterized in that, A threaded tube (4) is fitted onto the quartz tube (2). An annular heat dissipation cavity is provided between the tube body (1) and the quartz tube (2). A spiral guide plate (5) is fixedly connected to the inner wall of the annular heat dissipation cavity. The guide plate (5) extends along the axial direction of the tube body (1) to form a spiral guide cavity. The threaded tube (4) is set in the guide cavity and is in contact with the outer wall of the quartz tube (2).
2. The corona tube for an ozone generator according to claim 1, characterized in that, The outer wall of the quartz tube (2) is provided with a groove (3), and the threaded tube (4) is connected to the groove (3) through a thermally conductive silicone grease layer. The outer wall of the quartz tube (2) and the threaded tube (4) form a surface contact for heat conduction.
3. The corona tube for an ozone generator according to claim 2, characterized in that, A forced convection gap of 1mm-4mm is maintained between the outer edge of the threaded tube (4) and the spiral guide plate (5).
4. The corona tube for an ozone generator according to claim 1, characterized in that, The two ends of the annular heat dissipation cavity are respectively fixedly connected to a cooling medium inlet pipe (101) and an outlet pipe (102).
5. The corona tube for an ozone generator according to claim 1, characterized in that, The two ends of the threaded pipe (4) are respectively connected to an air inlet pipe (401) and an air outlet pipe (402), and the air inlet pipe (401) and the air outlet pipe (402) extend to the outside of the pipe body (1).
6. The corona tube for an ozone generator according to claim 5, characterized in that, A temperature sensor is installed on the air outlet pipe (402).