A piezoelectric photocatalytic water treatment reaction device

Abstract

This invention discloses a piezoelectric photocatalytic water treatment reaction device. The device includes: a water inlet and outlet on the side of the tank; a drive motor and a high-pressure air pump installed on the top of the tank; a partition plate at the upper middle of the tank; a stirring shaft installed in the middle of the partition plate, with several stirring rollers evenly installed on the side of the stirring shaft; the drive motor drives the stirring shaft to rotate, mixing water and the piezoelectric photocatalyst evenly; the upper end of a hollow tube is connected to the high-pressure air pump via an air pipe; several air jets are evenly provided on the side of the stirring rollers, and the high-pressure gas output from the high-pressure air pump passes sequentially through the air pipe, the hollow tube, and the stirring rollers before being ejected through the air jets; and lamps are arranged side-by-side on the inner wall of the tank. This invention uses a stirring shaft and stirring rollers to evenly stir the piezoelectric photocatalyst, illuminates it with lamps, and enhances the collision of piezoelectric photocatalytic particles by pumping in high-pressure gas, effectively enhancing the piezoelectric photocatalytic reaction effect.

Description

Technical Field

[0001] This utility model belongs to the field of water treatment technology, and in particular relates to a piezoelectric photocatalytic water treatment reaction device. Background Technology

[0002] Photocatalysis is a green high-tech technology with important application prospects in the environmental field. It has attracted widespread attention in the environmental protection field and has been successfully applied to the degradation research of various organic pollutants.

[0003] Piezoelectric materials generate an electric potential when subjected to asymmetric external forces. The resulting built-in electric field can macroscopically promote charge separation for catalysis. Compared to photocatalysis or electrocatalysis, it utilizes only mechanical energy, reducing its dependence on light and electricity.

[0004] Combining piezoelectric materials with photocatalysts is considered an effective method for achieving photoinduced carrier separation and migration. Under strain, piezoelectric materials generate an internal electric field that provides the driving force for the transport of photoinduced charges on the photocatalyst bulk and surface, thereby promoting their separation and inhibiting their recombination. This novel catalytic mechanism, which simultaneously utilizes light and mechanical energy, is called "piezoelectric photocatalysis." Utility Model Content

[0005] The purpose of this invention is to provide a piezoelectric photocatalytic water treatment reaction device. By setting a stirring shaft and stirring rod to stir the piezoelectric photocatalyst evenly, and by setting a lamp tube for illumination, and by pumping in high-pressure gas to enhance the collision of piezoelectric photocatalytic particles, the piezoelectric photocatalytic reaction effect is effectively enhanced.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This invention relates to a piezoelectric photocatalytic water treatment reaction device, comprising a tank. The upper side of the tank has an inlet for inputting a mixture of water and a piezoelectric photocatalyst; the bottom side of the tank has an outlet for outputting treated purified water; the bottom of the tank has an outlet for discharging sediment; a drive motor and a high-pressure air pump are mounted on the top of the tank; the output shaft of the drive motor extends into the tank, and a drive gear is mounted at its end; a partition is located at the upper middle part of the tank; a stirring shaft is mounted in the middle of the partition, and the sides of the stirring shaft are evenly equipped with… The device is equipped with several stirring rollers; a driven tooth is installed at the upper end of the stirring shaft, which meshes with a drive gear, and the drive motor drives the stirring shaft to rotate and mix water and piezoelectric photocatalyst evenly; a hollow tube for high-pressure gas to pass through is provided in the middle of the stirring shaft, and the upper end of the hollow tube is connected to a high-pressure gas pump through a gas pipe; the stirring rollers are hollow in the middle, and several air jets are evenly provided on the sides of the stirring rollers; the high-pressure gas output by the high-pressure gas pump passes through the gas pipe, the hollow tube, and the stirring rollers in sequence and is then ejected through the air jets; several lamp tubes serving as photocatalytic lamp sources are arranged side by side on the inner wall of the tank.

[0007] As a preferred technical solution of this application, the partition divides the tank into an equipment compartment and a reaction compartment; a through hole is provided in the middle of the partition, the stirring shaft is installed in the through hole, and a first sealing bearing is installed between the stirring shaft and the through hole.

[0008] As a preferred technical solution of this application, the circumferential side of the stirring shaft is provided with a plurality of vent holes arranged side by side, and a fixing seat is provided on the outside of the vent holes. The stirring roller is fixed to the side of the stirring shaft by the fixing seat. The high-pressure gas of the hollow tube enters the stirring roller through the vent holes.

[0009] As a preferred technical solution of this application, the end of the stirring roller is provided with a mounting seat, and the mounting seat and the fixed seat are assembled by threaded engagement.

[0010] As a preferred technical solution of this application, the top of the stirring shaft is provided with a sealing cover, the middle of the sealing cover is provided with an installation hole, the air pipe extends into the hollow tube through the installation hole, and a second sealing bearing is installed between the air pipe and the inner side of the installation hole.

[0011] As a preferred technical solution of this application, a plug is installed on the outside of the air nozzle, and the lower end of the plug is fixed to the outside of the air nozzle by a number of support columns; a telescopic rod is provided in the middle of the lower end of the plug, and a blocking block for blocking the air nozzle is provided at the end of the telescopic rod; a return spring is installed inside the telescopic rod.

[0012] As a preferred technical solution of this application, both the blocking block and the side of the air jet are inclined surfaces.

[0013] This utility model has the following beneficial effects: This invention uses a stirring shaft and stirring rod to stir the piezoelectric photocatalyst evenly, and uses a lamp tube for illumination and pumps in high-pressure gas to enhance the collision of piezoelectric photocatalyst particles, thus effectively enhancing the piezoelectric photocatalytic reaction effect.

[0014] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of a piezoelectric photocatalytic water treatment reaction device; Figure 2 This is a side view of a piezoelectric photocatalytic water treatment reactor. Figure 3 This is a cross-sectional view of a piezoelectric photocatalytic water treatment reactor; Figure 4 for Figure 3 A magnified view of a section at point A in the middle; Figure 5 This is a cross-sectional view of the stirring rod.

[0017] In the diagram, the correspondence between component names and drawing numbers is as follows: 1. Tank body; 2. Drive motor; 3. High-pressure air pump; 4. Agitator shaft; 5. Agitator roller; 6. Plug; 7. Lamp tube; 101. Water inlet; 102. Water outlet; 103. Discharge outlet; 104. Baffle plate; 105. Through hole; 106. First sealing bearing; 201. Drive gear; 301. Air pipe; 401. Hollow pipe; 402. Vent hole; 403. Fixed base; 404. Driven gear; 405. Sealing cover; 406. Mounting hole; 407. Second sealing bearing; 501. Mounting base; 502. Air jet nozzle; 601. Support column; 602. Telescopic rod; 603. Plug; 604. Return spring. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0019] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0020] Please see Figure 1-5 As shown, this utility model is a piezoelectric photocatalytic water treatment reaction device, including a tank 1. The upper side of the tank 1 is provided with an inlet 101 for inputting a mixture of water and piezoelectric photocatalyst, and the bottom side of the tank 1 is provided with an outlet 102 for outputting treated purified water. The bottom of the tank 1 is provided with an outlet 103 for discharging sediment. After the water is treated, the impurities and piezoelectric photocatalyst settle to the bottom of the tank 1 after standing, and can be discharged through the outlet 103, so that the piezoelectric photocatalyst can be recovered.

[0021] A partition 104 is provided at the upper middle part of the tank body 1; the partition 104 divides the tank body 1 into an equipment compartment and a reaction compartment; a stirring shaft 4 is installed in the middle of the partition 104, and several stirring rollers 5 are evenly installed on the side of the stirring shaft 4; the water inlet 101 inputs the mixture of water and piezoelectric photocatalyst into the reaction compartment for stirring and reaction. Understandably, in practical applications, to improve water treatment efficiency, the piezoelectric photocatalyst is thoroughly stirred with the water by rotating the driving shaft 4; specifically, for example... Figure 3-4 As shown, a drive motor 2 and a high-pressure air pump 3 are installed on the top of the tank 1; the output shaft of the drive motor 2 extends into the tank 1, and a drive gear 201 is installed at its end; a driven gear 404 is installed at the upper end of the stirring shaft 4, and the driven gear 404 meshes with the drive gear 201. The drive motor 2 drives the stirring shaft 4 to rotate and mix the water and piezoelectric photocatalyst evenly. A through hole 105 is provided in the middle of the partition plate 104, the stirring shaft 4 is installed in the through hole 105, and a first sealing bearing 106 is installed between the stirring shaft 4 and the through hole 105. A hollow tube 401 for high-pressure gas to pass through is provided in the middle of the stirring shaft 4. The upper end of the hollow tube 401 is connected to the high-pressure gas pump 3 through a gas pipe 301. A sealing cover 405 is provided at the top of the stirring shaft 4. A mounting hole 406 is provided in the middle of the sealing cover 405. The gas pipe 301 extends into the hollow tube 401 through the mounting hole 406. A second sealing bearing 407 is installed between the gas pipe 301 and the inner side of the mounting hole 406. The sealing cover 405 is provided to prevent high-pressure gas from being ejected from the upper end of the hollow tube 401. The stirring roller 5 has a hollow structure in the middle, and several jet nozzles 502 are evenly provided on the side of the stirring roller 5. The high-pressure gas output by the high-pressure gas pump 3 passes through the gas pipe 301, the hollow pipe 401, and the stirring roller 5 in sequence, and is then ejected through the jet nozzles 502. By pumping high-pressure gas into the reaction chamber, the piezoelectric photocatalyst can be fully collided and mixed with water, effectively improving the water treatment effect. The inner wall of the tank 1 is provided with several lamp tubes 7 arranged side by side as photocatalytic lamp sources. The lamp tubes 7 emit light to irradiate the piezoelectric photocatalyst, promote its reaction, and thus purify the water.

[0022] It is understandable that, in actual use, when the high-pressure air pump 3 is not working, impurities or piezoelectric photocatalysts in the water may enter the jet nozzle 502, causing it to become clogged. To avoid this, this application seals the jet nozzle 502 by installing a plug 6 on it when high-pressure gas is not being pumped in. Specifically, as shown... Figure 3-5 As shown, the circumferential side of the stirring shaft 4 is provided with several vent holes 402 arranged side by side. A fixing seat 403 is provided on the outer side of the vent holes 402. The stirring roller 5 is fixed to the side of the stirring shaft 4 through the fixing seat 403. The high-pressure gas of the hollow tube 401 enters the stirring roller 5 through the vent holes 402. The end of the stirring roller 5 is provided with a mounting seat 501. The mounting seat 501 and the fixing seat 403 are assembled by threaded engagement. A plug 6 is installed on the outer side of the jet nozzle 502. The lower end of the plug 6 is fixed to the outer side of the jet nozzle 502 by several support columns 601. The middle of the lower end of the plug 6 is provided with The device includes a telescopic rod 602, with a plug 603 at its end for blocking the jet nozzle 502. A return spring 604 is installed inside the telescopic rod 602. During water treatment, under the action of high-pressure gas pumped by the high-pressure air pump 3, the plug 603 detaches from the jet nozzle 502, allowing high-pressure gas to be pumped into the water to promote the reaction. After water treatment is completed, the high-pressure air pump 3 stops working, and the plug 603, under the action of the return spring 604, seals the jet nozzle 502, preventing impurities or piezoelectric photocatalysts in the water from entering and clogging the nozzle. Both the blocking block 603 and the jet nozzle 502 have beveled sides. By setting the sides of the blocking block 603 and the jet nozzle 502 to be beveled, the sealing effect of the blocking block 603 can be effectively improved.

[0023] As a supplementary example of this embodiment, in actual use, in order to better stimulate the piezoelectric effect of the piezoelectric photocatalyst, one or more ultrasonic generators (not shown in the figure) can be installed on the lower surface of the partition 104. The power lines of the ultrasonic generators pass through the partition 104 and the openings at the top of the tank 1 (not shown in the figure) and are then connected to the power supply. Ultrasonic waves are emitted by the ultrasonic generators to induce the piezoelectric material in the piezoelectric photocatalyst to produce a piezoelectric effect. Due to the low crystal symmetry of the piezoelectric material, the positive and negative charges are separated, and the crystal undergoes macroscopic polarization, resulting in a voltage between the two end faces. The piezoelectric photocatalytic material can couple piezoelectric and photocatalytic properties, better achieve advanced oxidation, reduce the recombination of holes and electrons, and improve the catalytic effect.

[0024] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0025] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A piezoelectric photocatalytic water treatment reaction device, characterized by comprising: The tank (1) includes a water inlet (101) on the upper side of the tank (1) for inputting a mixture of water and piezoelectric photocatalyst, and a water outlet (102) on the bottom side of the tank (1) for outputting treated purified water; and a discharge outlet (103) at the bottom of the tank (1) for discharging sediment. A drive motor (2) and a high-pressure air pump (3) are installed on the top of the tank (1); the output shaft of the drive motor (2) extends into the tank (1), and a drive gear (201) is installed at its end. A partition (104) is provided at the upper middle part of the tank (1). A stirring shaft (4) is installed in the middle of the partition (104), and several stirring rollers (5) are evenly installed on the side of the stirring shaft (4). A driven tooth (404) is installed at the upper end of the stirring shaft (4). The driven tooth (404) meshes with the drive gear (201). The drive motor (2) drives the stirring shaft (4) to rotate and mix the water and piezoelectric photocatalyst evenly. The stirring shaft (4) has a hollow tube (401) in the middle for high-pressure gas to pass through, and the upper end of the hollow tube (401) is connected to the high-pressure gas pump (3) through a gas pipe (301). The stirring roller (5) has a hollow structure in the middle, and several jet nozzles (502) are evenly provided on the side of the stirring roller (5). The high-pressure gas output by the high-pressure air pump (3) passes through the air pipe (301), the hollow pipe (401), and the stirring roller (5) in sequence and is then ejected through the jet nozzles (502). The inner wall of the tank (1) is provided with several lamp tubes (7) arranged side by side as photocatalytic lamp sources.

2. The piezoelectric photocatalytic water treatment reaction device according to claim 1, characterized in that, The partition (104) divides the tank (1) into an equipment compartment and a reaction compartment. A through hole (105) is provided in the middle of the partition (104). The stirring shaft (4) is installed in the through hole (105). A first sealed bearing (106) is installed between the stirring shaft (4) and the through hole (105).

3. The piezoelectric photocatalytic water treatment reaction device according to claim 1, characterized in that, The stirring shaft (4) has several ventilation holes (402) arranged side by side on its peripheral side. A fixing seat (403) is provided on the outside of the ventilation hole (402). The stirring roller (5) is fixed on the side of the stirring shaft (4) through the fixing seat (403). The high-pressure gas of the hollow tube (401) enters the stirring roller (5) through the ventilation hole (402).

4. The piezoelectric photocatalytic water treatment reaction device according to claim 3, characterized in that, The end of the stirring roller (5) is provided with a mounting seat (501), and the mounting seat (501) and the fixed seat (403) are assembled by threaded engagement.

5. The piezoelectric photocatalytic water treatment reaction device according to claim 1, characterized in that, The top of the stirring shaft (4) is provided with a sealing cover (405), and the sealing cover (405) is provided with an installation hole (406) in the middle. The air pipe (301) passes through the installation hole (406) and extends into the hollow tube (401). A second sealing bearing (407) is installed between the air pipe (301) and the inner side of the installation hole (406).

6. The piezoelectric photocatalytic water treatment reaction device according to claim 1, characterized in that, A plug (6) is installed on the outside of the jet nozzle (502), and the lower end of the plug (6) is fixed to the outside of the jet nozzle (502) by a number of support columns (601); The lower end of the plug (6) is provided with a telescopic rod (602), and the end of the telescopic rod (602) is provided with a plug (603) for blocking the air jet (502). A return spring (604) is installed inside the telescopic rod (602).

7. The piezoelectric photocatalytic water treatment reaction device according to claim 6, characterized in that, Both the side surfaces of the block (603) and the jet nozzle (502) are inclined.

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