A water purification device for degrading water pollutants by using titanium dioxide

Abstract

This invention discloses a water purification device that utilizes titanium dioxide to degrade pollutants in water, relating to the field of water purification technology. The device includes: a support base; a drive transmission device fixed to the top center of the support base; an outer shell fixed to the top of the drive transmission device; an inner connecting column connected to the top center of the drive transmission device and coaxially arranged with the outer shell; a flow chamber rotatably disposed between the outer shell and the inner connecting column, and located above the drive transmission device; and multiple purification devices arranged in a ring, rotatably disposed within the flow chamber, with their bottoms connected to the drive transmission device. This invention achieves integrated, highly efficient, and continuous purification with enhanced mass transfer through dynamic contact between the catalyst and water, uniform photoexcitation across the entire area, uninterrupted maintenance, and zero catalyst powder loss.

Description

Technical Field

[0001] This invention relates to the field of water purification technology, and more specifically, to a water purification device that utilizes titanium dioxide to degrade pollutants in water. Background Technology

[0002] In the field of existing water photocatalytic purification technology, the degradation of organic pollutants using titanium dioxide photocatalysts has become a research hotspot. Traditional titanium dioxide photocatalytic reactors are mainly divided into two categories: suspended reactors and fixed-bed reactors. Fixed-bed reactors load titanium dioxide onto the reactor wall, packing material, or carrier surface. Although no subsequent separation process is required, the fixed catalyst limits the uniformity of its contact with the water, easily leading to laminar flow and reduced mass transfer efficiency. Furthermore, the catalyst surface is easily deactivated by intermediate pollutant products, and once the catalyst activity decreases, it must be shut down and disassembled for replacement, making continuous operation impossible. In addition, the light source in existing reactors is mostly installed on the sidewall or top, resulting in uneven illumination, short light penetration distance, and significant energy loss. Therefore, it is necessary to provide a water purification device that utilizes titanium dioxide to degrade water pollutants to solve the problems mentioned in the background technology. Summary of the Invention

[0003] To achieve the above objectives, the present invention provides the following technical solution: a water purification device that utilizes titanium dioxide to degrade pollutants in water, comprising:

[0004] Support base;

[0005] The drive transmission device is fixed at the top center of the support base;

[0006] The outer casing is fixed to the top of the drive transmission device;

[0007] The inner connecting column is connected to the top center of the drive transmission device and is coaxially arranged with the outer casing;

[0008] The flow chamber is rotatably disposed between the outer shell and the inner connecting column, and is located above the drive transmission device;

[0009] The purification device is arranged in a ring, with multiple units rotating inside the flow chamber, and its bottom is connected to the drive transmission device.

[0010] Furthermore, preferably, the drive transmission device includes:

[0011] The support column is fixed at the bottom to the bearing base and at the top to the bottom of the inner connecting column.

[0012] The planetary gear set is fixed on the outer side of the support base and rotatably connected to the support column at the center.

[0013] The transmission gear ring is fixed at the bottom center of the planetary gear set;

[0014] The transmission gear meshes with the transmission ring gear;

[0015] The drive motor is fixed on the support base and connected to the transmission gear.

[0016] Furthermore, preferably, the planetary gear set includes:

[0017] The central sun gear is rotatably mounted on the support column and rotatably connected to the bottom of the inner connecting column;

[0018] The external gear ring is coaxially mounted with the central sun gear and fixed to the support base;

[0019] The planetary pinions are arranged in a ring, and multiple of them mesh with the central sun gear and the outer gear ring.

[0020] Furthermore, as a preferred embodiment, the outer shell is provided with a water inlet channel and a drain channel on both sides, and an annular groove is provided at the corresponding positions of the water inlet channel and the drain channel. The water inlet channel corresponds to the upper part of one side of the flow cavity, and the drain channel corresponds to the lower part of the other side of the flow cavity.

[0021] Furthermore, as a preferred embodiment, the inner connecting column is made of a transparent material and has an ultraviolet light source inside.

[0022] Furthermore, preferably, the flow cavity includes:

[0023] The lower annular surface is rotatably positioned between the outer casing and the inner connecting column, located below the annular groove corresponding to the drainage channel;

[0024] The upper annular surface is set parallel to the lower annular surface and is located above the annular groove corresponding to the water inlet channel;

[0025] The spacer ring is rotatably positioned between the lower and upper ring surfaces, adjacent to the upper ring surface, and located below the annular groove corresponding to the water inlet channel;

[0026] The dividing surfaces are arranged in a ring shape, vertically connected to the upper ring surface and the interval ring surface;

[0027] The inlet notch ring is fixed in the annular groove corresponding to the inlet channel, and the notch is connected to the inlet channel;

[0028] The drainage notch ring is fixed in the annular groove corresponding to the drainage channel, and the notch is connected to the drainage channel.

[0029] Furthermore, as a preferred embodiment, the lower and upper annular surfaces are provided with a plurality of corresponding annularly distributed connecting holes, and the spacer annular surface is provided with a plurality of through holes corresponding to the connecting holes, each group having a plurality of holes distributed in annularly, and the connecting holes and through holes corresponding to the purification device.

[0030] Furthermore, preferably, the purification device includes:

[0031] Rotate the chassis to rotatably connect it to the bottom of the flow chamber;

[0032] The connecting shaft is used to fix the bottom of the rotating chassis and the drive transmission device.

[0033] The rotating top plate is rotatably connected to the top of the flow cavity, and the rotating top plate is provided with multiple annularly distributed holes;

[0034] The purification component is located inside the flow chamber, with its bottom rotatably connected to the rotating base and its top connected to the opening of the rotating top plate.

[0035] Furthermore, preferably, the purification component includes:

[0036] The connecting turntable is located at the hole in the rotating top plate, and a square connection port is provided in the center;

[0037] A limiting ring, corresponding to the hole, is fixed to the top of the rotating top plate;

[0038] The catalyst plates are arranged in a ring, with multiple plates at the bottom connected to the rotating base via a torsion spring, and the top plate slidably connected to a square connection port on the connecting turntable.

[0039] The connecting arc plate is fixed to the top of the catalyst plate and located inside the limiting ring.

[0040] Compared with the prior art, the beneficial effects of the present invention are:

[0041] In this invention, the planetary gear set drives the overall revolution of the flow chamber and the purification device rotates independently, enabling the catalyst plate to achieve compound motion in the water body. This greatly increases the randomness and uniformity of the contact between the catalyst and the water flow, and enhances the mass transfer effect.

[0042] The flow chamber is divided into multiple independent fan-shaped chambers by the partition surface, and with the through holes on the spacer ring, the water is forced to flow along the "upward in and downward out" path, which effectively prolongs the contact time between the water and the catalyst and breaks the laminar flow state.

[0043] By placing the ultraviolet light source at the center of the inner connecting column made of transparent material, the multiple purification devices distributed in a ring can be simultaneously and uniformly irradiated radially, shortening the light path and avoiding the influence of water turbidity on the light effect.

[0044] By connecting the bottom of the catalyst plate to the rotating chassis via a torsion spring and slidingly connecting the top to the connecting turntable, the catalyst plate can adaptively deflect and swing under the impact of water flow, effectively preventing suspended matter from accumulating and clogging, and achieving dynamic self-cleaning of the catalyst surface.

[0045] By setting a connecting arc plate on the top of the catalyst plate and slidingly engaging with the square connecting port on the connecting turntable, it is possible to quickly remove and replace a single catalyst plate online without stopping the machine, and no large amount of water will leak out during the replacement process, and there is no need to separate the catalyst powder. Attached Figure Description

[0046] Figure 1 This is a schematic diagram of the overall structure of a water purification device that uses titanium dioxide to degrade pollutants in water.

[0047] Figure 2 A schematic diagram of the bottom structure of a water purification device that uses titanium dioxide to degrade pollutants in water.

[0048] Figure 3 This is a schematic diagram of the drive transmission device.

[0049] Figure 4 This is a schematic diagram of the outer shell structure;

[0050] Figure 5 This is a schematic diagram of the flow cavity structure;

[0051] Figure 6 This is a schematic diagram of the purification device.

[0052] Figure 7 This is a schematic diagram of the purification component structure;

[0053] In the diagram: 1. Support base; 2. Drive transmission device; 3. Outer shell; 4. Inner connecting column; 5. Flow chamber; 6. Purification device; 21. Support column; 22. Planetary gear set; 23. Transmission gear ring; 24. Transmission gear; 25. Drive motor; 31. Water inlet channel; 32. Drainage channel; 51. Lower ring surface; 52. Upper ring surface; 53. Spacer ring surface; 54. Separating surface; 55. Water inlet notch ring; 56. Drainage notch ring; 61. Rotating chassis; 62. Connecting shaft; 63. Rotating top plate; 64. Purification component; 221. Central sun gear; 222. External gear ring; 223. Planetary pinion; 641. Connecting turntable; 642. Limiting ring; 643. Catalyst plate; 644. Connecting arc plate. Detailed Implementation

[0054] Please see Figures 1 to 7 In this embodiment of the invention, a water purification device that utilizes titanium dioxide to degrade pollutants in water includes:

[0055] Support base 1;

[0056] The drive transmission device 2 is fixed at the top center of the support base 1;

[0057] The outer casing 3 is fixed to the top of the drive transmission device 2;

[0058] The inner connecting column 4 is connected to the top center of the drive transmission device 2 and is coaxially arranged with the outer shell 3;

[0059] The flow chamber 5 is rotatably disposed between the outer shell 3 and the inner connecting column 4, and is located above the drive transmission device 2;

[0060] The purification device 6 is arranged in a ring, with multiple units rotatably disposed within the flow chamber 5, and its bottom is connected to the drive transmission device 2.

[0061] In this embodiment, the drive transmission device 2 includes:

[0062] The support column 21 is fixed at the bottom to the bearing base 1 and at the top to the bottom of the inner connecting column 4.

[0063] The planetary gear set 22 is fixed on the outer side of the bearing base 1 and rotatably connected to the support column 21 at its center.

[0064] The transmission gear ring 23 is fixed at the bottom center of the planetary gear set 22;

[0065] The transmission gear 24 meshes with the transmission gear ring 23;

[0066] The drive motor 25 is fixed on the support base 1 and connected to the transmission gear 24.

[0067] In this embodiment, the planetary gear set 22 includes:

[0068] The central sun gear 221 is rotatably mounted on the support column 21 and is rotatably connected to the bottom of the inner connecting column 4;

[0069] The external gear ring 222 is coaxially arranged with the central sun gear 221 and fixed on the support base 1;

[0070] The planetary pinions 223 are arranged in a ring and mesh with the central sun gear 221 and the external gear ring 222.

[0071] In other words, when the drive motor 25 starts, it drives the connected transmission gear 24 to rotate. The transmission gear 24 meshes with the transmission gear ring 23, transmitting torque to the planetary gear set 22. When the planetary gear set 22 is working, the central sun gear 221 rotates clockwise. Since the outer gear ring 222 is fixed on the support base 1, it drives multiple annularly distributed planetary pinions 223 to revolve clockwise around the central sun gear 221 and simultaneously rotate counterclockwise. Thus, driven by the planetary pinions 223, the entire flow cavity 5 is driven. The revolution and independent rotation of the purification device 6 greatly increase the randomness and uniformity of the catalyst's contact with the water flow, continuously purifying the water. In addition, the support column 21 provides a positioning axis for the entire rotating system, ensuring coaxiality and fixing the inner connecting column 4. Furthermore, through the transmission connection between the planetary gear set 22 and the flow chamber 5, the complex transmission mechanism is integrated into the enclosed space at the bottom, isolated from the flow chamber 5 above by a shaft dynamic seal. This ensures the accuracy of the transmission while preventing water from corroding and contaminating the precision transmission components.

[0072] In this embodiment, the outer shell 3 is provided with a water inlet channel 31 and a drainage channel 32 on both sides, and an annular groove is provided at the corresponding positions of the water inlet channel 31 and the drainage channel 32. The water inlet channel 31 corresponds to the upper part of one side of the flow cavity 5; the drainage channel 32 corresponds to the lower part of the other side of the flow cavity 5.

[0073] In other words, the water to be treated is pumped into the device through the inlet channel 31, the outlet of which corresponds to the upper region of the flow chamber 5. The purified water flows out through the drain channel 32 on the other side, the inlet of which corresponds to the lower region of the flow chamber 5. The inlet is in the upper part of the upstream region and the outlet is in the lower part of the downstream region, which forces the water to flow through multiple purification devices 6 from top to bottom in the flow chamber 5, extending the effective contact time between the water and the catalyst. The inlet channel 31 and the drain channel 32 are connected to the flow chamber 5 with independent annular grooves, so that the inlet and outlet positions are relatively fixed, but will not interfere with the overall rotation of the flow chamber 5, thus realizing a stable connection between the dynamic rotating chamber and the static pipeline.

[0074] In this embodiment, the inner connecting column 4 is made of transparent material and has an ultraviolet light source inside.

[0075] In other words, the inner connecting column 4 is fixed at the top center of the drive transmission device 2 and remains stationary with the support column 21. The ultraviolet light source inside it emits light continuously after being powered on, and shines radially outward through the transparent inner connecting column 4 onto the surrounding purification devices 6. This causes the titanium dioxide catalyst on the purification devices 6 to produce substances with strong oxidizing properties (such as hydroxyl radicals) to decompose pollutants in the water. Moreover, the light source is located in the center and radiates outward, achieving simultaneous and uniform illumination of all the ring-shaped purification devices 6. Compared with the light source installed on the side wall, this central illumination method has a shorter light path, less energy loss, and avoids the problem of reduced light penetration caused by water turbidity. The inner connecting column 4 acts as a physical barrier, separating the light source from the water in the flow chamber 5. This avoids the water temperature rise caused by the light source directly contacting the water (affecting the photocatalytic efficiency) and also utilizes the outer layer of the flowing water to provide a certain degree of indirect heat dissipation for the light source.

[0076] In this embodiment, the flow cavity 5 includes:

[0077] The lower annular surface 51 is rotatably disposed between the outer shell 3 and the inner connecting column 4, located below the annular groove corresponding to the drainage channel 32;

[0078] The upper annular surface 52 is arranged parallel to the lower annular surface 51 and is located above the annular groove corresponding to the water inlet channel 31;

[0079] The spacer ring 53 is rotatably disposed between the lower ring 51 and the upper ring 52, and is adjacent to the upper ring 52, located below the annular groove corresponding to the water inlet channel 31;

[0080] Multiple dividing surfaces 54 are arranged in a ring shape, vertically connected to the upper ring surface 52 and the spacer ring surface 53;

[0081] The water inlet notch ring 55 is fixed in the annular groove corresponding to the water inlet channel 31, and the notch is connected to the water inlet channel 31.

[0082] The drainage notch ring 56 is fixed in the annular groove corresponding to the drainage channel 32, and the notch is connected to the drainage channel 32.

[0083] In this embodiment, the lower annular surface 51 and the upper annular surface 52 are provided with a plurality of corresponding annularly distributed connecting holes, and the spacer annular surface 53 is provided with a plurality of through holes corresponding to the connecting holes, each group being provided with a plurality of holes in annular distribution, and the connecting holes and through holes are corresponding to the purification device 6.

[0084] In other words, the flow chamber 5 rotates clockwise under the drive of the transmission device 2. The inlet notch ring 55 and the outlet notch ring 56 are fixed in the corresponding annular grooves and are connected to the corresponding inlet channel 31 and outlet channel 32. The water enters through the inlet channel 31 and first enters a fan-shaped initial space formed by the upper annular surface 52, the spacer annular surface 53 and the two separating surfaces 54 through the inlet notch ring 55. Then, the water passes through the through hole on the spacer annular surface 53 and enters the annular reaction space formed by the spacer annular surface 53 and the lower annular surface 51 along the purification device 6. When the water flows to the outlet channel 32 at the outlet notch ring 56, it comes into contact with multiple purification devices 6 to continuously purify the water. The purified water is collected at the outlet notch ring 56 and discharged through the outlet channel 32.

[0085] In a preferred embodiment, the annular cavity is divided into multiple independent fan-shaped chambers by the partition surface 54, forcing the water flow to proceed only along the path of "flowing from the upper chamber through the middle through-hole into the lower chamber". This greatly increases the actual flow distance and turbulence of the water in the cavity, breaks the laminar flow state, and enhances the purification effect of the catalyst on pollutants. The area between the upper annular surface 52 and the partition annular surface 53 serves as an inlet buffer zone to stabilize the water flow distribution, while the area between the lower annular surface 51 and the partition annular surface 53 is the main reaction zone. This spatial gradation makes the distribution and reaction of the water flow more orderly and controllable. The inlet gap ring 55 and the outlet gap ring 56 are fixed on the stationary outer shell 3, while the flow cavity 5 rotates inside. By utilizing relative motion, the rotating cavity can continuously receive water and drain water from the fixed gap positions, realizing continuous flow treatment under dynamic conditions.

[0086] In this embodiment, the purification device 6 includes:

[0087] Rotate the chassis 61 to rotatably connect it to the bottom of the flow chamber 5;

[0088] The connecting shaft 62 is fixedly connected to the bottom of the rotating chassis 61 and the drive transmission device 2;

[0089] The rotating top plate 63 is rotatably connected to the top of the flow cavity 5, and the rotating top plate 63 is provided with a plurality of annularly distributed holes;

[0090] The purification component 64 is disposed inside the flow chamber 5, with its bottom rotatably connected to the rotating base 61 and its top connected to the hole in the rotating top plate 63.

[0091] In other words, the purification device 6 is connected to the planetary pinion 223 of the drive transmission device 2 via the connecting shaft 62 at the bottom. Therefore, while revolving with the flow chamber 5, it also rotates counterclockwise. The rotating base 61 and rotating top plate 63 serve as supports to ensure that the purification component 64 can be stably positioned in the flow chamber 5. That is, under the drive of the planetary pinion 223, the rotating base 61 rotates in the circular hole on the lower annular surface 51 via the connecting shaft 62. Under the transmission of the purification component 64, the rotating top plate 63 rotates in the circular hole on the upper annular surface 52. Each set of through holes rotates on the spaced annular surface 53, so that the water flow can fully contact the purification component 64.

[0092] In this embodiment, the purification component 64 includes:

[0093] The connecting turntable 641 is rotatably positioned at the hole in the rotating top plate 63, and has a square connection port in the center;

[0094] The limiting ring 642 is set to correspond to the hole and is fixed to the top of the rotating top plate 63;

[0095] Catalyst plates 643 are arranged in a ring, with multiple plates arranged in a ring. The bottom of the plates is connected to the rotating base 61 via a torsion spring, and the top of the plates is slidably connected to the square connection port on the connecting turntable 641.

[0096] The connecting arc plate 644 is fixed to the top of the catalyst plate 643 and is located inside the limiting ring 642.

[0097] In other words, the connecting turntable 641 rotates with the rotating top plate 63, and the square connecting port at its center provides support for the top of the catalyst plate 643. The bottom of the catalyst plate 643 is connected to the rotating base plate 61 through a torsion spring, and the top passes through the square connecting port. The connecting arc plate 644 at the top is located inside the limiting ring 642. When water flows through, it impacts the catalyst plate 643, causing it to deflect at a certain angle around the bottom torsion spring. As a result, the catalyst plate 643 rotates in the corresponding through hole on the spaced ring surface 53, driving the connecting turntable 641 to rotate in the hole of the rotating top plate 63. When the water flow weakens, the torsion spring resets it. When it is necessary to replace the catalyst plate 643, the entire plate can be pulled out by hooking the connecting arc plate 644 with a tool and pulling it upward. It should be noted that the torsion spring at the connection between the bottom of the catalyst plate 643 and the rotating base plate 61 is set in the rotating base plate 61. The torsion spring is engaged with the bottom of the catalyst plate 643 through a shaft.

[0098] In a preferred embodiment, the catalyst plate 643 is coated with titanium dioxide catalyst. The oscillation of the catalyst plate 643 under the action of water flow not only increases the probability of contact with the water flow, but more importantly, this oscillation can effectively prevent the large-scale deposition and blockage of suspended matter in the water on the catalyst surface (anti-fouling). At the same time, the micro-shear force generated by the oscillation helps the catalyst surface to self-clean and maintain its long-term activity, so that the surface fluid boundary layer of the catalyst plate 643 is continuously destroyed and renewed, maximizing the photonic efficiency and reaction rate. The top of the catalyst plate 643 is sealed by the connecting arc plate 644 and the limiting ring 642, and the bottom is sealed by the rotating base 61. When it is necessary to replace a catalyst plate 643 with decreased activity, the catalyst plate 643 is pulled upward from the connecting turntable 641 through the connecting arc plate 644. The catalyst plate 643 slides out along the square connection port, and the space it occupies is immediately filled with water, but the water does not leak out in large quantities. This realizes the dynamic replacement of catalyst online without stopping the machine, without emptying the water body, and without separating the powder.

[0099] In practice, the water to be treated is first pumped in through the inlet channel 31 on the outer shell 3, guided by the inlet notch ring 55 fixed in the annular groove, and enters the fan-shaped initial space enclosed by the upper annular surface 52, the spacer annular surface 53, and the two separating surfaces 54. At the same time, the drive motor 25 starts, driving the transmission gear 24 to rotate, and transmitting torque to the planetary gear set 22 through the transmission gear ring 23 meshing with it. Since the outer gear ring 222 is fixed and stationary on the support base 1, while the central sun gear 221 rotates clockwise, it drives multiple planetary pinions 223 to revolve clockwise around the central sun gear 221 and simultaneously rotate counterclockwise. The planetary pinions 223 drive the purification device 6 as a whole to achieve the same compound motion (revolution plus counterclockwise rotation) in the flow chamber 5 through the connecting shaft 62, and synchronously drive the flow chamber 5 as a whole to revolve clockwise. The water entering the fan-shaped initial space then passes through the rotating spacer annular surface 53. Multiple sets of through holes flow downwards along the rotating catalyst plate 643, entering the main reaction zone composed of the spacer ring 53 and the lower ring 51. Impacted by the water flow, the catalyst plate 643 deflects around the bottom torsion spring and resets. During this process, the ultraviolet light source inside the inner connecting column 4 shines radially and uniformly outwards through the transparent material, exciting the titanium dioxide on the catalyst plate 643 to produce strong oxidizing substances to decompose pollutants. The water continues to flow towards the drainage gap ring 56 in the main reaction zone, and after fully contacting and reacting with multiple purification devices 6, it flows into the drainage gap ring 56 and is finally discharged through the drainage channel 32. Throughout the continuous operation, the catalyst plate 643 continuously oscillates under the action of water flow to enhance mass transfer and self-cleaning. When it is necessary to replace the catalyst plate 643 with decreased activity, it can be directly hooked onto the connecting arc plate 644 and pulled upwards, allowing the catalyst plate 643 to slide out along the square connection port of the connecting turntable 641, realizing online replacement without stopping the machine.

[0100] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A water purification device that utilizes titanium dioxide to degrade pollutants in water, characterized in that: include: Support base (1); The drive transmission device (2) is fixed at the top center of the support base (1); The outer casing (3) is fixed to the top of the drive transmission device (2); The inner connecting column (4) is connected to the top center of the drive transmission device (2) and is coaxially arranged with the outer shell (3); The flow chamber (5) is rotatably disposed between the outer shell (3) and the inner connecting column (4), and is located above the drive transmission device (2); The purification device (6) is arranged in a ring, and is rotatably set in the flow chamber (5), and its bottom is connected to the drive transmission device (2).

2. The water purification device for degrading water pollutants using titanium dioxide according to claim 1, characterized in that: The drive transmission device (2) includes: The support column (21) is fixed at the bottom to the bearing base (1) and at the top to the bottom of the inner connecting column (4); The planetary gear set (22) is fixed on the outer side of the bearing base (1) and rotatably connected to the support column (21) at the center; The transmission gear ring (23) is fixed at the bottom center of the planetary gear set (22); The transmission gear (24) meshes with the transmission gear ring (23); The drive motor (25) is fixed on the support base (1) and connected to the transmission gear (24).

3. The water purification device for degrading water pollutants using titanium dioxide according to claim 2, characterized in that: The planetary gear set (22) includes: The central sun gear (221) is rotatably mounted on the support column (21) and rotatably connected to the bottom of the inner connecting column (4); The external gear ring (222) is coaxially arranged with the central sun gear (221) and fixed on the bearing base (1); The planetary pinions (223) are arranged in a ring and mesh with the central sun gear (221) and the external gear ring (222).

4. The water purification device for degrading water pollutants using titanium dioxide according to claim 1, characterized in that: The outer shell (3) is provided with a water inlet channel (31) and a drainage channel (32) on both sides, and an annular groove is provided at the corresponding position of the water inlet channel (31) and the drainage channel (32). The water inlet channel (31) corresponds to the upper part of one side of the flow cavity (5); the drainage channel (32) corresponds to the lower part of the other side of the flow cavity (5).

5. A water purification device for degrading water pollutants using titanium dioxide according to claim 1, characterized in that: The inner connecting column (4) is made of transparent material and has an ultraviolet light source inside.

6. A water purification device for degrading water pollutants using titanium dioxide according to claim 4, characterized in that: The flow cavity (5) includes: The lower annular surface (51) is rotatably disposed between the outer shell (3) and the inner connecting column (4), located below the annular groove corresponding to the drainage channel (32); The upper annular surface (52) is set parallel to the lower annular surface (51) and is located above the annular groove corresponding to the water inlet channel (31); The spacer ring (53) is rotatably disposed between the lower ring (51) and the upper ring (52), and adjacent to the upper ring (52), located below the annular groove corresponding to the water inlet channel (31); The dividing surface (54) is provided in a ring, with multiple parts arranged vertically, connecting the upper ring surface (52) and the interval ring surface (53). The water inlet notch ring (55) is fixed in the annular groove corresponding to the water inlet channel (31), and the notch is connected to the water inlet channel (31); The drainage notch ring (56) is fixed in the annular groove corresponding to the drainage channel (32), and the notch is connected to the drainage channel (32).

7. A water purification device for degrading water pollutants using titanium dioxide according to claim 6, characterized in that: The lower annular surface (51) and the upper annular surface (52) are provided with a plurality of corresponding annularly distributed connecting round holes. The spacer annular surface (53) is provided with a plurality of through holes corresponding to the connecting round holes. Each group is provided with a plurality of annularly distributed holes, and the connecting round holes and through holes correspond to the purification device (6).

8. A water purification device for degrading water pollutants using titanium dioxide according to claim 1, characterized in that: The purification device (6) includes: Rotate the chassis (61) to rotatably connect it to the bottom of the flow chamber (5); The connecting shaft (62) is fixedly connected to the bottom of the rotating chassis (61) and the drive transmission device (2). The rotating top plate (63) is rotatably connected to the top of the flow cavity (5), and the rotating top plate (63) is provided with a plurality of annularly distributed holes; The purification component (64) is located inside the flow chamber (5), with its bottom rotatably connected to the rotating base (61) and its top connected to the hole of the rotating top plate (63).

9. A water purification device for degrading water pollutants using titanium dioxide according to claim 8, characterized in that: The purification component (64) includes: The connecting turntable (641) is rotatably set at the hole of the rotating top plate (63), and a square connecting port is provided in the center; A limiting ring (642) is provided corresponding to the hole and fixed to the top of the rotating top plate (63); Catalyst plates (643) are arranged in a ring, with multiple plates arranged in a ring. The bottom is connected to the rotating base (61) by a torsion spring, and the top is slidably connected to the square connection port on the connecting turntable (641). The connecting arc plate (644) is fixed on the top of the catalyst plate (643) and located inside the limiting ring (642).

Images