Photocatalytic oxidation reactor for water treatment

Abstract

The utility model discloses a kind of photocatalytic oxidation reactors for water treatment, belong to photocatalytic reactor technical field;It includes: reactor, the top side of reactor is provided with inlet, bottom has drain outlet;The bottom center of reactor has opening;The top of reactor is detachably connected with top cover;Ultraviolet lamp, vertically set in reactor;Quartz glass tube, cover is arranged outside ultraviolet lamp, and is sealedly connected with opening, and photocatalyst is loaded on quartz glass tube;Stirring assembly, with top cover fixed connection.The utility model irradiates photocatalyst by opening ultraviolet lamp, and photocatalytic reaction generates active group such as hydroxyl radical, sterilization, removes organic pollutant in water, and stirring assembly plays the role of low-speed stirring, so that photocatalytic reaction is evenly carried out, realizes the effect of oxidation degradation to multiple organic matter, completes water purification treatment.

Description

Technical Field

[0001] This utility model relates to the field of photocatalytic reactor technology, and in particular to a photocatalytic oxidation reactor for water treatment. Background Technology

[0002] Photocatalytic oxidation is a novel environmental remediation method, widely applied in water treatment. The principle of photocatalytic sterilization is that when a photocatalyst is irradiated by photons, electrons are excited and transition from the valence band to the conduction band, creating holes with strong oxidizing properties in the valence band and electrons with reducing properties in the conduction band. Water molecules or dissolved oxygen in the water undergo a series of reactions at these holes, generating active groups such as hydroxyl radicals. These holes and hydroxyl radicals can oxidize and lyse the outer cell structure of microorganisms such as bacteria, causing the cytoplasm to leak out. The cytoplasm is then oxidized and decomposed through photocatalysis, thus killing the microorganisms. Similarly, photocatalytic degradation of pollutants utilizes the strong oxidizing properties of hydroxyl radicals to oxidize and decompose organic matter, mineralizing it into water, carbon dioxide, or non-toxic and harmless small molecule compounds.

[0003] Existing photocatalyst materials mainly include various oxide or sulfide semiconductors such as titanium dioxide, zinc oxide, tin oxide, zirconium dioxide, and cadmium sulfide. Among them, titanium dioxide photocatalysts are the most widely used due to their stable chemical properties, high catalytic activity, strong oxidation capacity, and non-toxicity.

[0004] Photocatalysis is a highly efficient, safe, and environmentally friendly water purification technology. The photocatalytic reactor is the tool and carrier for realizing the photocatalytic reaction. However, the catalyst carrier and light source in the existing photocatalytic reactor are not easy to replace, and a separate stirrer is required.

[0005] Therefore, it is necessary to develop a photocatalytic oxidation reactor for water treatment to address the aforementioned shortcomings. Utility Model Content

[0006] The purpose of this invention is to provide a photocatalytic oxidation reactor for water treatment to solve the above-mentioned problems.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] This utility model discloses a photocatalytic oxidation reactor for water treatment, comprising:

[0009] The reactor has an inlet on one side of the top and an outlet at the bottom; the bottom center of the reactor has an opening; and the top of the reactor is detachably connected to a top cover.

[0010] An ultraviolet lamp is vertically installed inside the reactor;

[0011] A quartz glass tube is placed over the ultraviolet lamp and sealed to the opening. The quartz glass tube contains a photocatalyst.

[0012] The stirring assembly is fixedly connected to the top cover.

[0013] Furthermore, the stirring assembly includes:

[0014] The fixed shaft connected to the top cover;

[0015] A drive motor is fixedly installed on one side of the reactor, and the drive end of the drive motor is connected to a drive pulley; a through hole is provided on the side of the reactor near the drive pulley.

[0016] The driven pulley is rotatably connected to the fixed shaft via a bearing;

[0017] A timing belt, one end of which is fitted onto the driving pulley, and the other end passes through the through hole and is fitted onto the driven pulley;

[0018] A connecting bracket is fixedly connected to the lower part of the driven pulley and rotatably connected to the fixed shaft via a bearing;

[0019] The fifth bevel gear is spaced below the connecting frame and is fixedly connected to the fixed shaft;

[0020] The first rotating shaft has one end fixedly connected to the connecting frame and the other end rotatably connected to a first bevel gear, which meshes with the fifth bevel gear.

[0021] The second rotating shaft has one end fixedly connected to the connecting frame and the other end rotatably connected to a second bevel gear, which meshes with the fifth bevel gear; the first rotating shaft and the second rotating shaft are symmetrically arranged, and the first bevel gear and the second bevel gear are symmetrically arranged.

[0022] The third rotating shaft has one end fixedly connected to the connecting frame and the other end rotatably connected to a third bevel gear, which meshes with the first bevel gear.

[0023] The fourth rotating shaft has one end fixedly connected to the connecting frame and the other end rotatably connected to a fourth bevel gear, which meshes with the second bevel gear; the third rotating shaft is symmetrically arranged with the fourth rotating shaft, and the third bevel gear is symmetrically arranged with the fourth bevel gear.

[0024] The third bevel gear is connected to a first stirring rod at the end away from the third rotating shaft; the fourth bevel gear is connected to a second stirring rod at the end away from the fourth rotating shaft; the first stirring rod and the second stirring rod are arranged alternately.

[0025] Furthermore, a support base is provided below the reactor, and the bottom of the ultraviolet lamp is fixedly connected to the top of the support base.

[0026] Furthermore, it also includes a base and a support frame vertically connected above the base, with the reactor fixedly connected to the top of the support frame.

[0027] Furthermore, a fixed base is fixedly connected to the side of the reactor near the drive motor, and the bottom of the drive motor is fixedly connected to the top of the fixed base.

[0028] This utility model has the following beneficial effects:

[0029] This invention uses ultraviolet light to irradiate a photocatalyst, which generates active groups such as hydroxyl radicals through a photocatalytic reaction. This process sterilizes and removes organic pollutants from the water. The stirring component provides low-speed stirring, ensuring the photocatalytic reaction proceeds uniformly and achieving the oxidative degradation of various organic substances, thus completing the water purification process. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of the photocatalytic oxidation reactor for water treatment according to this utility model;

[0031] Figure 2 This is a schematic diagram of the internal structure of the photocatalytic oxidation reactor for water treatment according to this utility model;

[0032] Figure 3 This is an enlarged structural schematic diagram of the stirring component in the photocatalytic oxidation reactor for water treatment of this utility model.

[0033] Reference numerals in the attached drawings: 1. Reactor; 101. Inlet; 102. Outlet; 2. Top cover; 3. Base; 4. Support frame; 5. Stirring assembly; 501. Drive motor; 502. Drive pulley; 503. Synchronous belt; 504. Fixed shaft; 505. Driven pulley; 506. Connecting frame; 507. First rotating shaft; 508. Second rotating shaft; 509. Third rotating shaft; 510. Fourth rotating shaft; 511. First bevel gear; 512. Second bevel gear; 513. Third bevel gear; 514. Fourth bevel gear; 515. First stirring rod; 516. Second stirring rod; 517. Fifth bevel gear; 6. Support base; 7. Quartz glass tube; 8. Ultraviolet lamp; 9. Fixed base. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0035] 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.

[0036] Example 1

[0037] Please see Figure 1-3 This utility model provides a technical solution: a photocatalytic oxidation reactor for water treatment, comprising: a reactor 1, with an inlet 101 on one side of the top and an outlet 102 at the bottom; an opening at the center of the bottom of the reactor 1; and a top cover 2 detachably connected to the top of the reactor 1. A base 3 and a support frame 4 vertically connected above the base 3 are also present, with the reactor 1 fixedly connected above the support frame 4.

[0038] An ultraviolet lamp 8 is vertically positioned inside the reactor 1. A quartz glass tube 7 covers the outside of the ultraviolet lamp 8 and is sealed to the opening; the quartz glass tube 7 carries a photocatalyst. The stirring assembly 5 is fixedly connected to the top cover 2.

[0039] Compared to existing technologies, this invention uses ultraviolet light to irradiate the photocatalyst, which generates active groups such as hydroxyl radicals through photocatalytic reaction. This sterilizes and removes organic pollutants from the water. The stirring component plays a role in low-speed stirring, ensuring that the photocatalytic reaction proceeds uniformly and achieves the oxidative degradation of various organic substances, thus completing the water purification process.

[0040] Example 2

[0041] Please see Figure 1-3 Based on Embodiment 1, this utility model provides a technical solution: the stirring assembly 5 includes a fixed shaft 504 connected to the top cover 2. A drive motor 501 is fixedly mounted on one side of the reactor 1, and the drive end of the drive motor 501 is driven and connected to a drive pulley 502; a fixed base 9 is fixedly connected to the side of the reactor 1 near the drive motor 501, and the bottom of the drive motor 501 is fixedly connected to the top of the fixed base 9. A through hole is provided on the side of the reactor 1 near the drive pulley 502. A driven pulley 505 is rotatably connected to the fixed shaft 504 through a bearing; a synchronous belt 503 has one end sleeved on the drive pulley 502, and the other end passes through the through hole and is sleeved on the driven pulley 505.

[0042] The connecting frame 506 is fixedly connected to the lower part of the driven pulley 505 and is rotatably connected to the fixed shaft 504 through a bearing; the fifth bevel gear 517 is spaced below the connecting frame 506 and is fixedly connected to the fixed shaft 504.

[0043] One end of the first rotating shaft 507 is fixedly connected to the connecting frame 506, and the other end is rotatably connected to a first bevel gear 511, which meshes with a fifth bevel gear 517. One end of the second rotating shaft 508 is fixedly connected to the connecting frame 506, and the other end is rotatably connected to a second bevel gear 512, which meshes with a fifth bevel gear 517. The first rotating shaft 507 and the second rotating shaft 508 are symmetrically arranged, as are the first bevel gear 511 and the second bevel gear 512. One end of the third rotating shaft 509 is fixedly connected to the connecting frame 506, and the other end is rotatably connected to a third bevel gear 513, which meshes with a first bevel gear 511. One end of the fourth rotating shaft 510 is fixedly connected to the connecting frame 506, and the other end is rotatably connected to a fourth bevel gear 514, which meshes with a second bevel gear 512. The third rotating shaft 509 and the fourth rotating shaft 510 are symmetrically arranged, as are the third bevel gear 513 and the fourth bevel gear 514.

[0044] The end of the third bevel gear 513 away from the third rotating shaft 509 is connected to the first stirring rod 515; the end of the fourth bevel gear 514 away from the fourth rotating shaft 510 is connected to the second stirring rod 516; the first stirring rod 515 and the second stirring rod 516 are arranged alternately.

[0045] Compared with the prior art, this utility model drives the active pulley 502 to rotate via the drive motor 501, and the driven pulley 505 drives the connecting frame 506 to rotate. The connecting frame 506 drives the first bevel gear 511, the second bevel gear 512, the third bevel gear 513 and the fourth bevel gear 514 to rotate around the fifth bevel gear 517, thereby realizing the stirring of the first stirring rod 515 and the second stirring rod 516 around the quartz glass tube 7.

[0046] Example 3

[0047] This embodiment provides a method for using a photocatalytic oxidation reactor for water treatment, which is the method for using the photocatalytic oxidation reactor for water treatment provided in Embodiment 1 or Embodiment 2, as detailed below:

[0048] The reactor 1 is filled with raw water. When the ultraviolet lamp is turned on, the photocatalyst is irradiated. The photocatalytic reaction generates active groups such as hydroxyl radicals, which sterilize and remove organic pollutants from the water. The drive motor 501 drives the active pulley 502 to rotate, and the driven pulley 505 drives the connecting frame 506 to rotate. The connecting frame 506 drives the first bevel gear 511, the second bevel gear 512, the third bevel gear 513, and the fourth bevel gear 514 to rotate around the fifth bevel gear 517. This allows the first stirring rod 515 and the second stirring rod 516 to stir around the quartz glass tube 7, which can play a role in low-speed stirring, so that the photocatalytic reaction can proceed evenly, and achieve the oxidative degradation of various organic substances, thus completing the water purification treatment.

[0049] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0050] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A photocatalytic oxidation reactor for water treatment, characterized in that, include: The reactor has an inlet on one side of the top and an outlet at the bottom; the bottom center of the reactor has an opening; and the top of the reactor is detachably connected to a top cover. An ultraviolet lamp is vertically installed inside the reactor; A quartz glass tube is placed over the ultraviolet lamp and sealed to the opening. The quartz glass tube contains a photocatalyst. The stirring assembly is fixedly connected to the top cover.

2. The photocatalytic oxidation reactor for water treatment according to claim 1, characterized by The stirring assembly includes: The fixed shaft connected to the top cover; A drive motor is fixedly installed on one side of the reactor, and the drive end of the drive motor is connected to a drive pulley; a through hole is provided on the side of the reactor near the drive pulley. The driven pulley is rotatably connected to the fixed shaft via a bearing; A timing belt, one end of which is fitted onto the driving pulley, and the other end passes through a through hole and is fitted onto the driven pulley; A connecting bracket is fixedly connected to the lower part of the driven pulley and rotatably connected to the fixed shaft via a bearing; The fifth bevel gear is spaced below the connecting frame and is fixedly connected to the fixed shaft; The first rotating shaft has one end fixedly connected to the connecting frame and the other end rotatably connected to a first bevel gear, which meshes with the fifth bevel gear. The second rotating shaft has one end fixedly connected to the connecting frame and the other end rotatably connected to a second bevel gear, which meshes with the fifth bevel gear; the first rotating shaft and the second rotating shaft are symmetrically arranged, and the first bevel gear and the second bevel gear are symmetrically arranged. The third rotating shaft has one end fixedly connected to the connecting frame and the other end rotatably connected to a third bevel gear, which meshes with the first bevel gear. The fourth rotating shaft has one end fixedly connected to the connecting frame and the other end rotatably connected to a fourth bevel gear, which meshes with the second bevel gear; the third rotating shaft is symmetrically arranged with the fourth rotating shaft, and the third bevel gear is symmetrically arranged with the fourth bevel gear. The third bevel gear is connected to a first stirring rod at the end away from the third rotating shaft; the fourth bevel gear is connected to a second stirring rod at the end away from the fourth rotating shaft; the first stirring rod and the second stirring rod are arranged alternately.

3. The photocatalytic oxidation reactor for water treatment according to claim 2, characterized by A support base is provided below the reactor, and the bottom of the ultraviolet lamp is fixedly connected to the top of the support base.

4. The photocatalytic oxidation reactor for water treatment according to claim 2, wherein It also includes a base and a support frame vertically connected above the base, with the reactor fixedly connected to the top of the support frame.

5. The photocatalytic oxidation reactor for water treatment according to claim 2, wherein The reactor is fixedly connected to a mounting base on the side near the drive motor, and the bottom of the drive motor is fixedly connected to the top of the mounting base.

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