Microwave ultraviolet photocatalytic degradation COD device

Abstract

The microwave ultraviolet photocatalytic degradation COD device belongs to the technical field of photocatalytic degradation, and aims at solving the technical problem that the purification effect is poor when the prior art is used, and the suspended impurities in the water to be treated can reduce the reaction efficiency of the photocatalyst. The second quartz tube, the filtering component, the guide component, the scraping component and the transmission component are arranged, the spiral guide strip is arranged, multiple vortex regions are formed when the water passes through the water holes, the water can be uniformly distributed, the contact between the water and the photocatalyst on the inner wall of the water hole is promoted, and therefore the purification effect on the water can be improved. During the extraction of the first quartz tube, the filter plate is turned over by one turn under the drive of the toothed belt, one side of the filter plate where impurities are accumulated is exposed, then the accumulated impurities can be scraped off through the scraping strip, the purification effect on the water can be improved, the use of the photocatalyst is not affected by the suspended impurities, the filter plate can be cleaned without being disassembled, and the efficiency and service life of the photocatalyst can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of photocatalytic degradation, in particular to a microwave ultraviolet photocatalytic COD degradation device. BACKGROUND

[0002] The principle of ultraviolet photocatalytic oxidation technology is to use the ultraviolet light generated by the microwave electrodeless lamp to fully contact with the photocatalyst, so as to achieve the effect of photocatalytic oxidation, which can effectively degrade the organic matter (such as COD) and other pollutants in water to achieve the purpose of purifying water quality. In the prior art, the photocatalyst is usually coated in the microwave cavity, and the inner wall area of the microwave cavity is limited, so that the contact area of the photocatalyst with the water to be treated is small, resulting in poor purification effect. At the same time, the water to be treated often contains suspended impurities, which are easy to adhere to the surface of the photocatalyst after long-term use, affecting the surface morphology and activity of the photocatalyst, thereby reducing the reaction efficiency of the photocatalyst. SUMMARY

[0003] The present application aims to provide a microwave ultraviolet photocatalytic COD degradation device, which can solve the problem of poor purification effect of the prior art in use, and the suspended impurities in the water to be treated will reduce the reaction efficiency of the photocatalyst.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a microwave ultraviolet photocatalytic COD degradation device, comprising a shell assembly, a microwave electrodeless lamp assembly is embedded at one end of the shell assembly, a connecting assembly is arranged between the shell assembly and the microwave electrodeless lamp assembly for connecting the shell assembly and the microwave electrodeless lamp assembly, a filter cleaning assembly for filtering water is embedded on the outer surface of the shell assembly, a sealing assembly for sealing is arranged inside the shell assembly, and the microwave electrodeless lamp assembly is used to emit ultraviolet light and microwaves.

[0005] The filter cleaning assembly comprises a water inlet pipe embedded on the outer surface of the shell assembly and a filter part penetrating the outer surface of the water inlet pipe, and the filter part is arranged on the inner wall of the shell assembly. The inner wall of the shell assembly is provided with a guide part, and the filter part and the guide part are arranged at intervals. A scraping part is penetratingly arranged in the middle of the guide part, and the upper end of the scraping part is connected with the outer surface of the microwave electrodeless lamp assembly. A transmission part is arranged on one side of the scraping part, and the transmission part is matched with the position of the filter part. The filter part is used to filter the water input through the water inlet pipe. The guide part is used to guide the scraping part. The scraping part is used to drive the transmission part to move. The scraping part is also used to clean the filter part. The transmission part is used to drive the filter part to rotate.

[0006] Further, the shell assembly comprises a metal shell arranged on the outer surface of the microwave electrodeless lamp assembly and a water outlet pipe fixedly connected with the outer surface of the metal shell, one end of the metal shell is fixedly connected with a limiting ring, and one end of the microwave electrodeless lamp assembly is movably embedded with the limiting ring, and the limiting ring is used for limiting the microwave electrodeless lamp assembly.

[0007] Further, the filter component is fixedly connected between the fixed block and the supporting block on the inner wall of the metal shell, a rotating rod is rotatably connected between the fixed block and the supporting block, the rotating rod is rotatably connected with the outer surface of the water inlet pipe, a filter plate is fixedly connected with the outer surface of the rotating rod, and the outer surface of the filter plate is in contact with the inner wall of the water inlet pipe, and the filter plate is used for filtering suspended impurities in the water.

[0008] Further, the supporting block is fixedly connected with a torsion spring on one side, the other end of the torsion spring is fixedly connected with a gear, and the gear is fixedly sleeved on the outer surface of the rotating rod, the gear is used to drive the filter plate to rotate, and the torsion spring is used to limit the rotation of the filter plate.

[0009] Further, the guide component comprises two C-shaped supporting strips fixedly connected with the inner wall of the shell assembly, and a guide rod is fixedly connected between the two groups of C-shaped supporting strips, and the guide rod is provided in two groups, the scraping component comprises two groups of movable plates movably connected with the two groups of guide rods and scraping strips fixedly arranged at the lower end of the movable plates, and the movable plates and the scraping strips are provided in two groups, the distance between the two groups of scraping strips is the same as the radius of the filter plate, and the two ends of the scraping strips are provided as inclined surfaces, and the guide rod is used to guide the two groups of movable plates.

[0010] Further, the upper end of the two groups of movable plates is fixedly connected with a connecting plate, the upper end of the connecting plate is fixedly connected with a mounting shell, the upper end of the mounting shell is slidably connected with an embedded block, a pressure spring is fixedly connected between the lower end of the embedded block and the inner wall of the mounting shell, and the pressure spring is used to extrude the embedded block to make the embedded block extend out of the inside of the mounting shell.

[0011] Further, the transmission component comprises a transmission strip fixedly connected with one side of the two groups of movable plates and a tooth pattern fixedly arranged at the lower end of the transmission strip, the length of the tooth pattern is the same as the circumference of the gear, the position and shape of the tooth pattern match those of the gear, the position of one group of scraping strips matches that of one end of the tooth pattern, and the tooth pattern is used to drive the gear to rotate to make the filter plate overturn.

[0012] Further, the microwave electrodeless lamp assembly comprises a first quartz tube with one end embeddedly movably connected with the limiting ring and a microwave coupler fixedly arranged at the other end of the first quartz tube, the first quartz tube is internally fixedly arranged with the electrodeless ultraviolet lamp, the embedded block is movably embedded with the outer surface of the first quartz tube, the microwave coupler is fixedly connected with the microwave transmitter at one end, the metal shell inner wall is fixedly connected with the second quartz tube, the first quartz tube is movably connected with the second quartz tube, the second quartz tube is penetratedly arranged with the water through holes at both ends, the water through holes are annularly arranged with multiple groups, the water through hole inner wall is fixedly arranged with the spiral guide strips, the spiral guide strips are arranged with three groups at intervals, the water through hole inner wall is coated with the photocatalyst coating, and the spiral guide strips are used for disturbing the water flow.

[0013] Further, the metal shell one end is fixedly connected with the connecting disc, the microwave coupler outer surface is fixedly sleeved with the connecting seat, and the microwave coupler is movably connected with the connecting disc, the connecting disc and the connecting seat are threadedly connected through the bolts, and the connecting disc and the connecting seat are used for connecting the metal shell and the microwave coupler.

[0014] Further, the sealing assembly comprises a fixed ring fixedly connected with the shell assembly inner wall and a mounting ring fixedly sleeved with the outer surface of the first quartz tube, and the first quartz tube is movably connected with the fixed ring, one side of the mounting ring is fixedly connected with the sealing rubber ring, one side of the fixed ring is arranged with the embedded groove, the sealing rubber ring is embeddedly and sealingly connected with the embedded groove, and the sealing rubber ring and the embedded groove are used for preventing water leakage.

[0015] Compared with the prior art, the beneficial effects of the present application are:

[0016] The microwave ultraviolet photocatalyst COD degradation device provided by the present application can form multiple vortex regions when water passes through the water through hole, can uniformly water, and can promote the contact between the water and the photocatalyst on the inner wall of the water through hole, so that the purification effect of the water can be improved, the filter plate is turned over by the toothed belt during the extraction of the first quartz tube, one side of the filter plate accumulated with impurities is exposed, and then the accumulated impurities can be scraped off by the scraping strip, the purification effect of the water can be improved, the use of the photocatalyst is not affected by the suspended impurities, and the photocatalyst can be cleaned without disassembling the filter plate, and the reaction efficiency of the photocatalyst can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole three-dimensional structure schematic diagram of the present application;

[0018] Figure 2 It is a shell assembly, microwave electrodeless lamp assembly and sealing assembly structure split schematic diagram of the present application;

[0019] Figure 3It is the schematic diagram of the internal structure of the shell assembly of the application;

[0020] Figure 4 It is the schematic diagram of the structure of the filter cleaning assembly of the application;

[0021] Figure 5 It is the schematic diagram of the structure of the filter part, the guide part, the scraping part and the transmission part of the application;

[0022] Figure 6 It is the schematic diagram of the structure of the sealing assembly of the application.

[0023] In the figure: 1, shell assembly; 11, metal shell; 12, water outlet pipe; 13, limiting ring; 2, microwave electrodeless lamp assembly; 21, microwave emitter; 22, microwave coupler; 23, first quartz tube; 24, second quartz tube; 241, water hole; 242, spiral guide strip; 25, electrodeless ultraviolet lamp; 3, connecting assembly; 31, connecting disc; 32, connecting seat; 4, filter cleaning assembly; 41, water inlet pipe; 42, filter part; 421, fixed block; 422, support block; 423, rotating rod; 424, filter plate; 425, gear; 426, torsion spring; 43, guide part; 431, C-shaped support strip; 432, guide rod; 44, scraping part; 441, movable plate; 442, scraping strip; 443, connecting plate; 444, mounting shell; 445, embedded block; 446, pressure spring; 45, transmission part; 451, transmission strip; 452, thread; 5, sealing assembly; 51, fixed ring; 52, mounting ring; 53, sealing rubber ring; 54, embedded groove. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0025] As shown in Figure 1 , Figure 2 and Figure 4 , the microwave ultraviolet light catalyst COD degradation device comprises a shell assembly 1, the shell assembly 1 is embedded with a microwave electrodeless lamp assembly 2 at one end, a connecting assembly 3 for connecting the shell assembly 1 and the microwave electrodeless lamp assembly 2 is arranged between the shell assembly 1 and the microwave electrodeless lamp assembly 2, a filter cleaning assembly 4 for filtering water is embedded on the outer surface of the shell assembly 1, a sealing assembly 5 for sealing is arranged inside the shell assembly 1, and the microwave electrodeless lamp assembly 2 is used for emitting ultraviolet light and microwaves;

[0026] The filter cleaning assembly 4 comprises a water inlet pipe 41 embedded on the outer surface of the shell assembly 1, and a filter component 42 penetrating the outer surface of the water inlet pipe 41, and the filter component 42 is arranged on the inner wall of the shell assembly 1, the inner wall of the shell assembly 1 is provided with a guide component 43, and the filter component 42 and the guide component 43 are arranged in a spaced manner, the middle part of the guide component 43 is provided with a scraping component 44 penetratingly, the upper end of the scraping component 44 is connected with the outer surface of the microwave electrodeless lamp assembly 2, one side of the scraping component 44 is provided with a transmission component 45, and the transmission component 45 is matched with the position of the filter component 42, the filter component 42 is used for filtering the water input through the water inlet pipe 41, the guide component 43 is used for guiding the scraping component 44, the scraping component 44 is used for driving the transmission component 45 to move, and the scraping component 44 is used for scraping.

[0027] The application will be further described in connection with the embodiments. Embodiment

[0028] Please refer to Figure 3 , Figure 5 and Figure 6 , the shell assembly 1 comprises a metal shell 11 arranged in a sleeved manner on the outer surface of the microwave electrodeless lamp assembly 2, and a water outlet pipe 12 embedded and fixedly connected with the outer surface of the metal shell 11, one end of the metal shell 11 is fixedly connected with a limiting ring 13 on the inner wall, and one end of the microwave electrodeless lamp assembly 2 is movably embedded with the limiting ring 13, the limiting ring 13 is used for limiting the microwave electrodeless lamp assembly 2, and the water in the metal shell 11 can be discharged through the water outlet pipe 12.

[0029] The filter component 42 is fixedly connected between the fixed block 421 and the support block 422 on the inner wall of the metal shell 11, a rotating rod 423 is rotatably connected between the fixed block 421 and the support block 422, the rotating rod 423 is rotatably connected with the outer surface of the water inlet pipe 41, a filter plate 424 is fixedly connected with the outer surface of the rotating rod 423, and the outer surface of the filter plate 424 is arranged in contact with the inner wall of the water inlet pipe 41, and the filter plate 424 is used for filtering the suspended impurities in the water.

[0030] The support block 422 is fixedly connected with a torsion spring 426 on one side, the other end of the torsion spring 426 is fixedly connected with a gear 425, the gear 425 is fixedly sleeved on the outer surface of the rotating rod 423, the gear 425 is used for driving the filter plate 424 to rotate, the torsion spring 426 is used for limiting the rotation of the filter plate 424, the rotating rod 423 is used for connecting the gear 425 and the filter plate 424, when the gear 425 rotates, the rotating rod 423 will also rotate, so that the filter plate 424 also rotates, and when the water flows through the filter plate 424, the torsion spring 426 can provide elastic resistance to avoid the filter component 42 from being impacted and rotated by the water flow.

[0031] The guide component 43 comprises two C-shaped support strips 431 fixedly connected at intervals on the inner wall of the shell assembly 1, two groups of C-shaped support strips 431 are fixedly connected with guide rods 432, and the guide rods 432 are provided in two groups. The scraping component 44 comprises movable plates 441 movably connected with the two groups of guide rods 432 and scraping strips 442 fixedly arranged at the lower end of the movable plates 441, and the movable plates 441 and the scraping strips 442 are provided in two groups. The distance between the two groups of scraping strips 442 is the same as the radius of the filter plate 424, and the two ends of the scraping strip 442 are provided as inclined surfaces. The guide rods 432 are used for guiding the two groups of movable plates 441, and the distance between the two groups of scraping strips 442 is set so that when the scraping strips 442 of one group are located at the center of the filter plate 424, the scraping strips 442 of the other group are located at the edge of the filter plate 424. When the scraping strips 442 move away from the limiting ring 13 from the center of the filter plate 424, the filter plate 424 can be prevented from rotating.

[0032] The upper end of the two groups of movable plates 441 is fixedly connected with a connecting plate 443, the upper end of the connecting plate 443 is fixedly connected with a mounting shell 444, the upper end of the mounting shell 444 is embedded with a slidingly connected embedded block 445, the lower end of the embedded block 445 is fixedly connected with a pressure spring 446 between the inner wall of the mounting shell 444, and the pressure spring 446 is used for extruding the embedded block 445 so that the embedded block 445 extends out of the inside of the mounting shell 444.

[0033] The transmission component 45 comprises a transmission strip 451 fixedly connected to one side of the two groups of movable plates 441 and a toothed pattern 452 fixedly arranged at the lower end of the transmission strip 451, and the length of the toothed pattern 452 is the same as the circumference of the gear 425. The toothed pattern 452 is matched with the position and shape of the gear 425, the position of the scraping strip 442 of one group is matched with the position of one end of the toothed pattern 452, the toothed pattern 452 is used for driving the gear 425 to rotate so that the filter plate 424 is flipped. When the movable plate 441 drives the transmission strip 451 to move towards the gear 425, the toothed pattern 452 will engage with the gear 425. At this time, the toothed pattern 452 can drive the gear 425 to rotate. After the gear 425 rotates one revolution, the toothed pattern 452 will be separated from the gear 425. At this time, the scraping strip 442 of one group is located at the center of the filter plate 424 to limit the rotation of the filter plate 424 due to the elastic force of the torsion spring 426. When the movable plate 441 continues to move, the scraping strip 442 of the other group can scrape off the impurities accumulated on the filter plate 424.

[0034] The microwave electrodeless lamp assembly 2 comprises a first quartz tube 23 with one end embeddedly movably connected with the limiting ring 13 and a microwave coupler 22 fixedly arranged at the other end of the first quartz tube 23, the first quartz tube 23 is internally fixedly arranged with an electrodeless ultraviolet lamp 25, an embedded block 445 is movably embedded with the outer surface of the first quartz tube 23, the microwave coupler 22 is fixedly connected with a microwave emitter 21 at one end, the inner wall of the metal shell 11 is fixedly connected with a second quartz tube 24, the first quartz tube 23 and the second quartz tube 24 are movably connected in penetration, a plurality of water through holes 241 are arranged in penetration at the two ends of the second quartz tube 24, the water through holes 241 are annularly arranged in multiple groups, helical guide strips 242 are fixedly arranged on the inner wall of the water through holes 241, the helical guide strips 242 are arranged in three groups at intervals, the inner wall of the water through holes 241 is coated with a photocatalyst coating, the helical guide strips 242 are used for disturbing water flow, the microwave emitter 21, the microwave coupler 22 and the electrodeless ultraviolet lamp 25 are electrically connected with an external controller, the arrangement of the water through holes 241 can increase the area of the photocatalyst coating, so that the water can better contact with the photocatalyst, thereby the water purification effect can be improved, when the first quartz tube 23 moves, the embedded block 445 can drive the mounting shell 444, the movable plate 441 and the scraping strip 442 to move, so that the transmission strip 451 and the toothed strip 452 move together with the movable plate 441, the electrodeless ultraviolet lamp 25 can emit two wavelengths of ultraviolet rays at the same time, the two wavelengths are 253.7nm and 185.0nm respectively, the ultraviolet rays with the wavelength of 253.7nm are mainly used for sterilization and disinfection, and can also photolyze COD molecules with molecular bond energy <472, the ultraviolet rays with the wavelength of 185.0nm are mainly used for photolyzing BOD, the microwave coupler 22, the microwave emitter 21, the electrodeless ultraviolet lamp 25 and the photocatalyst are used in combination to generate a large amount of hydroxyl oxidizing groups, so that the photocatalysis effect is enhanced, the COD and BOD contents in the water to be treated can be quickly reduced, and the water quality is purified.

[0035] The metal shell 11 is fixedly connected with a connecting disc 31 at one end, the microwave coupler 22 is fixedly sleeved with a connecting seat 32 at the outer surface, and the microwave coupler 22 is movably connected in penetration with the connecting disc 31, the connecting disc 31 and the connecting seat 32 are threadedly connected through bolts, the connecting disc 31 and the connecting seat 32 are used for connecting the metal shell 11 and the microwave coupler 22, when the microwave coupler 22, the microwave emitter 21 or the electrodeless ultraviolet lamp 25 needs to be overhauled, the connecting disc 31 and the connecting seat 32 are separated, so that the first quartz tube 23 and the microwave coupler 22 can be separated from the metal shell 11, and maintenance is facilitated, the microwave ultraviolet + photocatalyst composite technology has low energy consumption, and a large amount of chemical agents do not need to be added, so that secondary pollution is not caused, and the technology is more convenient to use.

[0036] The sealing assembly 5 comprises a fixed ring 51 fixedly connected to the inner wall of the shell assembly 1 and a mounting ring 52 fixedly sleeved on the outer surface of the first quartz tube 23, and the first quartz tube 23 is movably connected with the fixed ring 51, one side of the mounting ring 52 is fixedly connected with a sealing rubber ring 53, one side of the fixed ring 51 is provided with an embedding groove 54, and the sealing rubber ring 53 is embeddedly connected with the embedding groove 54. The sealing rubber ring 53 and the embedding groove 54 are used to prevent water leakage. Through the sealing of the sealing rubber ring 53 and the embedding groove 54, the water can be prevented from contacting the microwave coupler 22 and affecting the use.

[0037] In use, the water to be treated is input into the metal shell 11 through the water inlet pipe 41. When the water passes through the filter plate 424, suspended impurities are filtered out. After the water enters the metal shell 11, it passes through the water holes 241 and contacts the photocatalyst coating. The water is purified by the ultraviolet light emitted by the electrodeless ultraviolet lamp 25 and the microwaves emitted by the microwave emitter 21. At the same time, the water forms multiple vortex regions when passing through the water holes 241 due to the three groups of spiral guide strips 242, so that the water is disturbed and uniformly distributed to promote the contact between the water and the photocatalyst on the inner wall of the water holes 241, thereby improving the purification effect of the water. When the microwave coupler 22, the microwave emitter 21 or the electrodeless ultraviolet lamp 25 needs to be repaired, the bolts between the connecting disc 31 and the connecting seat 32 are removed, and the microwave emitter 21 is pulled to pull out the first quartz tube 23 from the inside of the metal shell 11. During the pulling-out process, the first quartz tube 23 moves the embedded block 445, so that the filter plate 424 is turned over by one turn, and the side of the filter plate 424 where impurities accumulate is exposed. Then, the accumulated impurities can be scraped off into the metal shell 11 by the scraping strip 442. When the scraping strip 442 comes into contact with the C-shaped support strip 431, the embedded block 445 is pressed by the first quartz tube 23 and moves into the installation shell 444. At this time, the first quartz tube 23 can be completely pulled out of the metal shell 11. Clean water can be input into the metal shell 11 to flush out the impurities. When the first quartz tube 23 is re-embedded in the metal shell 11, the embedded block 445 is pushed a distance by the first quartz tube 23 and re-embedded with the first quartz tube 23, so that the movable plate 441 comes into contact with the C-shaped support strip 431 close to the limiting ring 13. When the toothed groove 452 is separated from the gear 425, the torsion spring 426 can drive the filter plate 424 to reset, thereby improving the purification effect of the water, avoiding the influence of suspended impurities on the use of the photocatalyst, and cleaning the filter plate 424 without disassembly, thereby improving the reaction efficiency of the photocatalyst.

[0038] It is to be noted that, in the present text, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0039] The above description is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art, according to the technical solution and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A microwave ultraviolet photocatalytic COD degradation device, comprising a housing assembly (1), characterized in that: A microwave electrodeless lamp assembly (2) is embedded in one end of the housing assembly (1); a connecting assembly (3) for connecting the housing assembly (1) and the microwave electrodeless lamp assembly (2) is provided between the housing assembly (1) and the microwave electrodeless lamp assembly (2); a filtering and cleaning assembly (4) for filtering water is embedded in the outer surface of the housing assembly (1); a sealing assembly (5) for sealing is provided inside the housing assembly (1); and the microwave electrodeless lamp assembly (2) is used to emit ultraviolet light and microwaves; The filtering and cleaning component (4) comprises a water inlet pipe (41) embedded in the outer surface of the housing component (1) and a filtering component (42) penetrating the outer surface of the water inlet pipe (41), wherein the filtering component (42) is arranged on the inner wall of the housing component (1), a guide component (43) is arranged on the inner wall of the housing component (1), and the filtering component (42) and the guide component (43) are arranged at intervals, a scraping component (44) is penetrating the middle of the guide component (43), and the upper end of the scraping component (44) is connected to the microwave electrodeless lamp component. (2) The outer surface is connected, a transmission component (45) is provided on one side of the scraping component (44), and the transmission component (45) matches the position of the filter component (42), the filter component (42) is used to filter the water input through the water inlet pipe (41), the guide component (43) is used to guide the scraping component (44), the scraping component (44) is used to drive the transmission component (45) to move, the scraping component (44) is also used to clean the filter component (42), and the transmission component (45) is used to drive the filter component (42) to rotate.

2. The microwave ultraviolet photocatalytic COD degradation device according to claim 1, characterized in that: The housing assembly (1) comprises a metal shell (11) sleeved on the outer surface of the microwave electrodeless lamp assembly (2) and a water outlet pipe (12) embedded and fixedly connected to the outer surface of the metal shell (11); a limiting ring (13) is fixedly connected to the inner wall of one end of the metal shell (11), and one end of the microwave electrodeless lamp assembly (2) is movably engaged with the limiting ring (13); the limiting ring (13) is used to limit the position of the microwave electrodeless lamp assembly (2).

3. The microwave ultraviolet photocatalytic COD degradation device according to claim 2, characterized in that: The filter component (42) is fixedly connected between a fixed block (421) and a support block (422) on the inner wall of the metal shell (11) at intervals. A rotating rod (423) is rotatably connected between the fixed block (421) and the support block (422). The rotating rod (423) is rotatably connected to the outer surface of the water inlet pipe (41). A filter plate (424) is fixedly connected to the outer surface of the rotating rod (423). The outer surface of the filter plate (424) is arranged in contact with the inner wall of the water inlet pipe (41). The filter plate (424) is used to filter suspended impurities in the water.

4. The microwave ultraviolet photocatalytic COD degradation device according to claim 3, characterized in that: One side of the support block (422) is fixedly connected to a torsion spring (426), and the other end of the torsion spring (426) is fixedly connected to a gear (425), and the gear (425) is fixedly sleeved on the outer surface of the rotating rod (423). The gear (425) is used to drive the filter plate (424) to rotate, and the torsion spring (426) is used to limit the rotation of the filter plate (424).

5. The microwave ultraviolet photocatalytic COD degradation device according to claim 4, characterized in that: The guide component (43) includes two C-shaped support bars (431) fixedly connected to the inner wall of the housing assembly (1) at intervals, a guide rod (432) fixedly connected between the two groups of the C-shaped support bars (431), and two groups of guide rods (432) are provided. The scraping component (44) includes a movable plate (441) movably connected to the two groups of guide rods (432) and a scraping bar (442) fixedly provided at the lower end of the movable plate (441), and two groups of movable plates (441) and scraping bars (442) are provided. The spacing between the two groups of scraping bars (442) is the same as the radius of the filter plate (424), and both ends of the scraping bar (442) are set as inclined surfaces. The guide rod (432) is used to guide the two groups of movable plates (441).

6. The microwave ultraviolet photocatalytic COD degradation device according to claim 5, characterized in that: The upper ends of the two groups of movable plates (441) are fixedly connected to a connecting plate (443), the upper end of the connecting plate (443) is fixedly connected to a mounting shell (444), the upper end of the mounting shell (444) is embedded with an embedding block (445) in a sliding connection, and a pressure spring (446) is fixedly connected between the lower end of the embedding block (445) and the inner wall of the mounting shell (444), and the pressure spring (446) is used to squeeze the embedding block (445) so that the embedding block (445) extends out of the interior of the mounting shell (444).

7. The microwave ultraviolet photocatalytic COD degradation device according to claim 6, characterized in that: The transmission component (45) includes a transmission bar (451) fixedly connected to one side of the two groups of movable plates (441) and a tooth pattern (452) fixedly arranged at the lower end of the transmission bar (451), wherein the length of the tooth pattern (452) is the same as the circumference of the gear (425), the position and shape of the tooth pattern (452) match those of the gear (425), the position of one group of scraping bars (442) matches the position of one end of the tooth pattern (452), and the tooth pattern (452) is used to drive the gear (425) to rotate so that the filter plate (424) flips over.

8. The microwave ultraviolet photocatalytic COD degradation device according to claim 6, characterized in that: The microwave electrodeless lamp assembly (2) comprises a first quartz tube (23) with one end embedded in a movable connection with a limiting ring (13) and a microwave coupler (22) fixedly arranged at the other end of the first quartz tube (23). An electrodeless ultraviolet lamp (25) is fixedly arranged inside the first quartz tube (23). The embedded block (445) is movably engaged with the outer surface of the first quartz tube (23). A microwave emitter (21) is fixedly connected to one end of the microwave coupler (22). The inner wall of the metal shell (11) is fixedly provided with a plurality of electrodes. A second quartz tube (24) is connected, the first quartz tube (23) and the second quartz tube (24) are movably connected, water holes (241) are provided at both ends of the second quartz tube (24), and the water holes (241) are provided in a ring shape with multiple groups, spiral guide strips (242) are fixedly provided on the inner wall of the water holes (241), and three groups of spiral guide strips (242) are provided at intervals, the inner wall of the water holes (241) is coated with a photocatalyst coating, and the spiral guide strips (242) are used to disturb the water flow.

9. The microwave ultraviolet photocatalytic COD degradation device according to claim 8, characterized in that: One end of the metal shell (11) is fixedly connected to a connecting disk (31), an outer surface of the microwave coupler (22) is fixedly sleeved with a connecting seat (32), and the microwave coupler (22) and the connecting disk (31) are movably connected through the connecting disk (31), the connecting disk (31) and the connecting seat (32) are threadedly connected by bolts, and the connecting disk (31) and the connecting seat (32) are used to connect the metal shell (11) and the microwave coupler (22).

10. The microwave ultraviolet photocatalytic COD degradation device according to claim 8, characterized in that: The sealing assembly (5) comprises a fixing ring (51) fixedly connected to the inner wall of the housing assembly (1) and a mounting ring (52) fixedly sleeved on the outer surface of the first quartz tube (23), and the first quartz tube (23) and the fixing ring (51) are movably connected through each other, a sealing rubber ring (53) is fixedly connected to one side of the mounting ring (52), and an embedding groove (54) is provided on one side of the fixing ring (51), and the sealing rubber ring (53) and the embedding groove (54) are embedded and sealed, and the sealing rubber ring (53) and the embedding groove (54) are used to prevent water leakage.

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