A microwave liquid phase plasma wastewater treatment device
By introducing rotating components and hydrophobic coatings into the microwave liquid phase plasma wastewater treatment device, the problem of electrode contamination has been solved, achieving efficient electrode cleaning and extended lifespan, and improving the device's maintenance convenience and operating efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI HANYI ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-06-30
AI Technical Summary
In existing microwave liquid phase plasma wastewater treatment devices, the electrodes are prone to contaminant adhesion, have a short service life, and are difficult to clean effectively.
A microwave liquid-phase plasma wastewater treatment device including a rotating component and a hydrophobic coating was designed. The rotating component drives the electrodes to rotate and remove pollutants, and the hydrophobic coating reduces scaling. Combined with the fixing component, the electrodes can be easily disassembled and maintained.
This extends the service life of the electrodes, improves the ease of maintenance and operating efficiency of the device, and reduces maintenance costs.
Smart Images

Figure CN224430288U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of microwave liquid phase plasma treatment technology, specifically a microwave liquid phase plasma wastewater treatment device. Background Technology
[0002] The microwave liquid phase plasma wastewater treatment device generates liquid phase plasma by exciting electrode discharge with microwaves, and combines it with baffles to enhance the circulation of wastewater, thereby achieving efficient, low-cost, and pollution-free degradation of organic pollutants. It is suitable for treating high-concentration, recalcitrant organic wastewater.
[0003] A search revealed that patent CN221759563U discloses a microwave liquid-phase plasma wastewater treatment device. The device describes "...including a microwave source, a rectangular waveguide, a reactor, and a liquid tank. The inlet of the rectangular waveguide is connected to the microwave outlet of the microwave source for transmitting microwave energy... The top of the reactor is connected to the bottom of the liquid tank, and the internal spaces of the reactor and the liquid tank are interconnected, both containing wastewater to be treated; the top of the liquid tank has an exhaust port to provide a vacuum for the liquid tank and the reactor; the outside of the liquid tank has a cooling jacket for introducing cooling water to cool the liquid tank and the reactor...". From the above, it can be seen that the electrodes of this device are fixed, making them prone to contamination during use. Because they are located inside the reactor, they are difficult to clean, resulting in a short electrode lifespan. Therefore, we propose a microwave liquid-phase plasma wastewater treatment device. Utility Model Content
[0004] The present invention aims to solve the problems existing in the prior art or related technologies.
[0005] Therefore, the technical solution adopted by this utility model is as follows: a microwave liquid phase plasma wastewater treatment device, comprising a reactor, a liquid tank, a cooling jacket, a waveguide, a base, a rotating assembly, an insulating cylinder, and a fixing assembly. The liquid tank is fixedly installed on the top of the reactor, and an exhaust pipe is fixedly installed on the top of the liquid tank. The cooling jacket is fixedly installed outside the liquid tank. The waveguide is fixedly installed on the reactor. The base is bolted to the bottom of the reactor. The rotating assembly includes a motor fixedly installed at the bottom of the base, a rotating shaft fixedly installed at the output end of the motor, an electrode inserted through the top of the rotating shaft, a spiral groove opened on the outside of the electrode, and a hydrophobic coating coated on the outside of the electrode. The insulating cylinder is fixedly installed at the top of the base, and the fixing assembly is fixedly installed inside the rotating shaft.
[0006] Preferably, a shielding cover is fixedly installed on the outside of the reactor, and a drain pipe is fixedly installed on the rear side of the reactor.
[0007] Preferably, the bottom of the liquid tank is provided with a support rod, and the bottom of several support rods is provided with a base plate.
[0008] Preferably, an inlet pipe and an outlet pipe are fixedly provided on both sides of the cooling jacket.
[0009] Preferably, the left side of the waveguide is fixedly connected to the microwave source.
[0010] Preferably, the electrode has a locking hole for fixing, and the electrode is cylindrical.
[0011] Preferably, gaskets are provided on both sides of the insulating cylinder, and both gaskets are fixedly connected to the base by screws.
[0012] Preferably, the fixing assembly includes a spring fixedly disposed inside the rotating shaft, a fixing plate fixedly disposed outside the spring, and a rubber piston fixedly disposed on the fixing plate.
[0013] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows: The motor of the rotating component can drive the rotating shaft and the electrode, so that the electrode can be detached from the adhering contaminants by centrifugal force. The spiral groove enhances the detachment effect. At the same time, the hydrophobic coating reduces the structure and greatly extends the service life of the electrode. Then, the spring of the fixing component has a certain elastic potential energy, which can push the fixing plate and the rubber piston through the locking hole to fix the electrode. By pressing the rubber piston, it can be disengaged from the locking hole, so that the electrode can be directly disassembled for maintenance and replacement. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This utility model Figure 1 Schematic diagram of the structure of the central base and rotating assembly;
[0016] Figure 3 This utility model Figure 2 A schematic diagram of the structure after the insulating cylinder has been disassembled.
[0017] Figure 4 This utility model Figure 3 Schematic diagram of the structure of the transfer shaft and fixing components;
[0018] Figure 5 This utility model Figure 3 A schematic diagram of the cross-section of the electric motor.
[0019] Figure label:
[0020] 100. Reactor; 101. Shielding cover; 102. Drain pipe;
[0021] 200. Liquid tank; 201. Exhaust pipe; 202. Support rod; 203. Base plate;
[0022] 300. Cooling jacket; 301. Inlet pipe; 302. Outlet pipe;
[0023] 400. Waveguide;
[0024] 500, base;
[0025] 600. Rotating component; 601. Motor; 602. Shaft; 603. Electrode; 6031. Hydrophobic coating; 604. Spiral groove; 605. Clip;
[0026] 700. Insulating cylinder; 701. Gasket;
[0027] 800, Fixing component; 801, Spring; 802, Fixing plate; 803, Rubber piston. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.
[0029] The following describes some embodiments of the present invention with reference to the accompanying drawings, providing a microwave liquid phase plasma wastewater treatment device.
[0030] Example 1:
[0031] Reference Figure 1-5 This is the first embodiment of the present invention. This embodiment provides a microwave liquid phase plasma wastewater treatment device, including a reactor 100, a liquid tank 200, a cooling jacket 300, a waveguide 400, a base 500, a rotating component 600, an insulating cylinder 700, and a fixing component 800.
[0032] Specifically, a shield 101 is fixedly installed on the outside of the reactor 100, and a drain pipe 102 is fixedly installed on the rear side of the reactor 100. During use, the shield 101 can prevent microwave energy from leaking out of the reactor 100, while the drain pipe 102 can discharge sewage.
[0033] Specifically, the liquid tank 200 is fixedly installed on the top of the reactor 100. An exhaust pipe 201 is fixedly installed on the top of the liquid tank 200, and a support rod 202 is installed at the bottom of the liquid tank 200. A base plate 203 is installed at the bottom of several support rods 202. In use, the exhaust pipe 201 can exhaust air to provide a vacuum for the liquid tank 200 and the inside of the reactor 100. The liquid tank 200 can be supported by the cooperation of the support rods 202 and the base plate 203.
[0034] Specifically, the cooling jacket 300 is fixedly installed outside the liquid tank 200. An inlet pipe 301 and an outlet pipe 302 are fixedly installed on both sides of the cooling jacket 300. In use, cooling water can be delivered into the cooling jacket 300 through the inlet pipe 301 and then discharged through the outlet pipe 302 to achieve cooling and reduce the temperature of the liquid tank 200.
[0035] Specifically, the waveguide 400 is fixedly mounted on the reactor 100, and the left side of the waveguide 400 is fixedly connected to a microwave source. During use, microwave energy can be transmitted to the waveguide 400 through the microwave source to facilitate the reaction.
[0036] Specifically, the base 500 is bolted to the bottom of the reactor 100. During use, the reactor 100 can be sealed by the base 500 for operation.
[0037] Specifically, the rotating assembly 600 includes a motor 601 fixedly mounted at the bottom of the base 500, a rotating shaft 602 fixedly mounted at the output end of the motor 601, an electrode 603 inserted at the top of the rotating shaft 602, a spiral groove 604 formed on the outside of the electrode 603, and a hydrophobic coating 6031 coated on the outside of the electrode 603. The electrode 603 has a locking hole 605 for fixing. The electrode 603 is cylindrical. In use, the motor 601 can drive the rotating shaft 602 and the electrode 603 to rotate. The rotating electrode 603 can shake off the attached contaminants, and the spiral groove 604 can enhance the shaking effect. Then, the hydrophobic coating 6031 can reduce scaling and extend the service life of the electrode 603.
[0038] Specifically, the insulating cylinder 700 is fixedly mounted on the top of the base 500. Both sides of the insulating cylinder 700 are provided with gaskets 701. Both gaskets 701 are fixedly connected to the base 500 by screws. In use, the gaskets 701 can increase the contact area of the insulating cylinder 700 for fixing, while the insulating cylinder 700 provides insulation for use.
[0039] Specifically, the fixing component 800 is fixedly installed inside the rotating shaft 602. The fixing component 800 includes a spring 801 fixedly installed inside the rotating shaft 602, a fixing plate 802 fixedly installed outside the spring 801, and a rubber piston 803 fixedly installed on the fixing plate 802. In use, the elasticity of the spring 801 allows the fixing plate 802 and the rubber piston 803 to be inserted into the locking hole 605 for quick installation or removal of the electrode 603. At the same time, the rubber piston 803 can prevent water from entering the interior of the rotating shaft 602 and delay the corrosion of the spring 801.
[0040] The working principle and usage process of this utility model are as follows: First, align the bottom of electrode 603 with the rotating shaft 602. Then, press the rubber piston 803 of the fixing component 800 until the rubber piston 803 no longer obstructs the electrode 603. Next, insert the electrode 603 onto the rotating shaft 602 and rotate the electrode 603 until the locking hole 605 aligns with the rubber piston 803. After alignment, the spring 801 will automatically push the rubber piston 803 into the locking hole 605, thus fixing the electrode 603. After fixing, the motor 601 can be controlled to run. The running motor 601 can drive the electrode 603 to rotate via the rotating shaft 602, thereby removing adhering contaminants. When it is necessary to disassemble the electrode 603, first press the rubber piston 803 until it disengages from the locking hole 605, then move the electrode 603 outwards until it is completely disengaged from the rotating shaft 602, thus disassembling the electrode 603.
[0041] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A microwave liquid plasma sewage treatment apparatus, characterized by, include: Reactor (100); A liquid tank (200) is fixedly installed on the top of the reactor (100), and an exhaust pipe (201) is fixedly installed on the top of the liquid tank (200); A cooling jacket (300) is fixedly disposed on the outside of the liquid tank (200); A waveguide (400) is fixedly mounted on the reactor (100); The base (500) is bolted to the bottom of the reactor (100); The rotating assembly (600) includes a motor (601) fixedly mounted on the bottom of the base (500), a rotating shaft (602) fixedly mounted on the output end of the motor (601), an electrode (603) inserted through the top of the rotating shaft (602), a spiral groove (604) formed on the outside of the electrode (603), and a hydrophobic coating (6031) coated on the outside of the electrode (603). An insulating cylinder (700) is fixedly mounted on the top of the base (500); The fixing component (800) is fixedly disposed inside the rotating shaft (602).
2. A microwave liquid plasma sewage treatment apparatus according to claim 1, wherein A shield (101) is fixedly installed on the outside of the reactor (100), and a drain pipe (102) is fixedly installed on the rear side of the reactor (100).
3. A microwave liquid plasma sewage treatment apparatus according to claim 1, wherein The bottom of the liquid tank (200) is provided with a support rod (202), and the bottom of several support rods (202) is provided with a base plate (203).
4. The microwave liquid plasma sewage treatment device according to claim 1, wherein, An inlet pipe (301) and an outlet pipe (302) are fixedly installed on both sides of the cooling jacket (300).
5. The microwave liquid plasma sewage treatment device according to claim 1, wherein, The left side of the waveguide (400) is fixedly connected to the microwave source.
6. The microwave liquid plasma sewage treatment apparatus of claim 1, wherein The electrode (603) is provided with a locking hole (605) for fixing, and the electrode (603) is cylindrical.
7. The microwave liquid plasma sewage treatment device of claim 1, wherein, Gaskets (701) are provided on both sides of the insulating cylinder (700), and both gaskets (701) are fixedly connected to the base (500) by screws.
8. The microwave liquid plasma sewage treatment apparatus of claim 1, wherein The fixing assembly (800) includes a spring (801) fixedly disposed inside the rotating shaft (602), a fixing plate (802) fixedly disposed outside the spring (801), and a rubber piston (803) fixedly disposed on the fixing plate (802).