A curtain-type transfer catalytic converter and its water treatment method

Abstract

The application provides a curtain type transfer catalytic device and a water treatment method thereof, and relates to the technical field of environmental engineering. The curtain type transfer catalytic device comprises a circular pipeline, an integrated Venturi water head, a PVDF fine wire, an arc-shaped drum membrane, a shaft top rotary controller and an annular exposed cavity. A plurality of butt joints are uniformly arranged on the inner ring of the circular pipeline. The bottom end of the rotating shaft is connected with the annular exposed cavity. The shaft top rotary controller is connected with a plurality of one-way pressure pipes. The one-way pressure pipes are connected with the integrated Venturi water head at the end away from the shaft top rotary controller. The one-way pressure pipes are provided with small holes near the PVDF fine wire. The bottom of the PVDF fine wire is connected with the arc-shaped drum membrane. The arc-shaped drum membrane is connected with the annular exposed cavity in the horizontal direction. The device realizes efficient, safe and non-oxidant water treatment.

Description

Technical Field

[0001] This invention relates to the field of environmental engineering technology, specifically to a curtain-type transfer catalytic device and its water treatment method. Background Technology

[0002] Advanced oxidation processes (AOPs) are now widely used to treat wastewater containing organic pollutants and can also be used for sterilization and algae control. This is mainly attributed to the efficient generation of active species, also known as active intermediates, through the catalysis and activation of AOPs by catalysts or activators. These processes are primarily based on free radical and non-free radical processes. Common free radical processes include hydroxyl radicals, sulfate radicals, chlorine radicals, and chlorine dioxide, while non-free radical processes include high-valence metal oxides, singlet oxygen, and electron transfer. Catalytic / activation methods are primarily chemical and physical. Chemical methods utilize different catalysts / activators, such as metal-based and non-metal-based ones, while physical methods involve light fields, sound fields, plasma, temperature fields, and electric fields. Among these, effects derived from sound fields (ultrasound), such as cavitation and piezoelectric effects, are becoming a research hotspot due to their green and environmentally friendly characteristics.

[0003] The present invention aims to further extend the above-mentioned derivative effects and fully combine the technical features to design a high-efficiency, safe and oxidant-free water treatment device. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a curtain-type transfer catalytic device and its water treatment method, which solves the problem of water treatment containing oxidants.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: a curtain-type transfer catalytic device, comprising a circular pipe, an integrated Venturi head, a PVDF fine line, an arc-shaped diaphragm, a shaft top rotation controller, and an annular exposed cavity. The inner ring of the circular pipe is provided with a plurality of evenly distributed docking ports, the number of which is greater than or equal to eight, and the integrated Venturi head is connected to each docking port.

[0006] The shaft-top rotation controller is connected to a main shaft rotation shaft. The bottom end of the main shaft rotation shaft is connected to an annular exposed cavity. The shaft-top rotation controller is connected to multiple one-way pressure tubes. The end of each one-way pressure tube away from the shaft-top rotation controller is connected to the integrated Venturi head. Multiple evenly distributed PVDF fine lines are arranged at the bottom of each one-way pressure tube. Each one-way pressure tube has a small hole near the PVDF fine line. The inner diameter of each small hole is 1.5 times the diameter of the PVDF fine line. The number of PVDF fine lines is greater than or equal to six. The bottom of each PVDF fine line is connected to an arc-shaped diaphragm. The arc-shaped diaphragm is connected to the annular exposed cavity in the horizontal direction.

[0007] Preferably, the interface includes a directional controller, a deflector, and a bullet-shaped connector. The bullet-shaped connector is connected to the Venturi head. The directional controller is located on one side of the bullet-shaped connector near the interface, and the deflector is located on the other side of the bullet-shaped connector in the middle.

[0008] Preferably, a flow balancer is provided at the end of each unidirectional pressure tube near the integrated venturi head.

[0009] Preferably, a light-receiving dark plate is provided on the upper part of the interface, a focusing plate is provided on the upper part of the integrated Venturi head micro-end, and a laser emitter is provided on the focusing plate.

[0010] Preferably, a mixer is installed at the inlet of the circular pipe, and a micro-sodium bubble generator is provided at the end of the mixer away from the circular pipe.

[0011] Preferably, multiple ultrasonic transducers are arranged around the annular exposed cavity, and a water outlet is provided on one side of the annular exposed cavity.

[0012] Preferably, a water treatment method using a curtain-type transfer catalytic converter includes the following steps:

[0013] S1. The micro-sodium bubble generator makes the treatment liquid contain micro-sodium bubbles. The treatment liquid mixed with micro-nano bubbles enters the circular pipe and flows evenly towards the opposite interface under the action of annular pressure, and then enters the integrated Venturi head.

[0014] S2. The treatment fluid can generate hydraulic cavitation in the integrated Venturi head, and the presence of micro-nano bubbles can amplify the cavitation effect, generating high-speed jets, energy impacts, free radicals, supercritical water and the Leiden-Frost effect, which can rapidly destroy the molecular structure of pollutants.

[0015] S3. Under the action of the rectifier, the treated liquid flows to the one-way pressure pipe. Under the action of water pressure, the liquid flows down along the PVDF fine line through the micropores. This process can generate contact electrocatalysis and further mineralize polluting small molecules through non-free radical processes such as electron transfer and free radical processes generated by auxiliary derivation.

[0016] S4. The water flowing down the PVDF fine line passes through the arc-shaped diaphragm to release energy, avoiding the hydraulic impact of the water falling directly, and thus avoiding vibration damage and bottom damage of the PVDF fine line under long-term operation;

[0017] S5. Water flows along the polymer arc-shaped diaphragm, which facilitates collection and direct entry into the annular exposed cavity, indirectly forming a circular channel. This facilitates the ultrasonic transducer to generate acoustic catalysis, improves catalytic efficiency, and also facilitates the discharge of the treated liquid.

[0018] This invention provides a curtain-type catalytic transfer device and its water treatment method. It has the following beneficial effects:

[0019] This invention improves a water treatment device that is efficient, safe, and free of oxidants;

[0020] The system features several key features: 1. A micro-sodium bubble generator enhances cavitation by introducing micro- and nano-bubbles into the treated liquid. 2. The long, single-filament design of the PVDF fine wires ensures high water output while extending contact time and area, guaranteeing sufficient frictional contact and improving efficiency. 3. Multiple filaments form a curtain-like structure, increasing processing efficiency per unit time. 4. A rotary controller and spare connectors allow for reversible jointing, enabling cyclic flushing and timely adjustments to prevent damage to some pipes. Laser focusing prevents incorrect docking angles. The interface and Venturi tube feature a rounded, flexible design to prevent jamming. During docking, the rounded head deflects inward, and the Venturi tube, upon reaching the same deflection position, returns to center, pulling the rounded head back to center as well. 5. Water flows through an arc-shaped diaphragm for energy dissipation, preventing direct water impact and thus avoiding vibration damage to the single-filament wires and bottom wear during prolonged operation. Furthermore, the water flows along the polymer arc-shaped diaphragm, facilitating collection and direct entry into the annular exposed cavity, indirectly forming a circular channel. This promotes acoustic catalysis by the ultrasonic transducers, enhancing catalytic efficiency and facilitating the discharge of the treated liquid. Without the arc-shaped diaphragm, the water would directly converge in the entire bottom cavity, requiring more ultrasonic transducers and failing to generate the channel effect to expedite water discharge. VI. This equipment can quickly achieve functions such as sterilization, algae removal, and decontamination. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 This is a top view of the present invention;

[0023] Figure 3 This is a diagram of the rotating structure of the present invention;

[0024] Figure 4 This is a focusing diagram of the present invention;

[0025] Figure 5 This is a bottom view of the present invention.

[0026] Among them, 1. Circular pipe; 11. Connecting interface; 111. Directional controller; 112. Diverter; 113. Bullet-shaped connector; 114. Light receiving plate; 115. Focusing plate; 116. Laser emitter; 12. Mixer; 13. Micro-sodium bubble generator; 2. Integrated Venturi head; 3. Balanced flow controller; 4. Main shaft rotation shaft; 5. Shaft top rotation controller; 6. One-way pressure pipe; 7. PVDF fine line; 8. Arc-shaped diaphragm; 9. Annular exposed cavity; 91. Ultrasonic vibrator; 92. Water outlet. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Example 1:

[0029] like Figure 1-5 As shown, this embodiment of the invention provides a curtain-type transfer catalytic device, including a circular pipe 1, an integrated Venturi head 2, a PVDF fine line 7, an arc-shaped diaphragm 8, a shaft top rotation controller 5, and an annular exposed cavity 9. The circular pipe 1 is characterized by having a plurality of evenly distributed interfaces 11 in its inner ring, the number of interfaces 11 being greater than or equal to eight, the integrated Venturi head 2 being connected to the interfaces 11, and the arc-shaped diaphragm 8 being made of polymer.

[0030] The shaft top rotation controller 5 is connected to the main shaft rotation shaft 4. The bottom end of the main shaft rotation shaft 4 is connected to the annular exposed cavity 9. The shaft top rotation controller 5 is connected to multiple one-way pressure pipes 6. The end of each one-way pressure pipe 6 away from the shaft top rotation controller 5 is connected to the integrated Venturi head 2. Multiple evenly distributed PVDF fine lines 7 are set at the bottom of the one-way pressure pipe 6. Small holes are opened near the PVDF fine lines 7 in each one-way pressure pipe 6. The inner diameter of each small hole is 1.5 times the diameter of the PVDF fine line 7. The number of PVDF fine lines 7 is greater than or equal to six. The bottom of each PVDF fine line 7 is connected to the arc-shaped diaphragm 8. The arc-shaped diaphragm 8 is connected to the annular exposed cavity 9 in the horizontal direction.

[0031] The interface 11 includes a direction controller 111, a diverter 112, and a bullet-shaped connector 113. The bullet-shaped connector 113 is connected to the Venturi head 2. The direction controller 111 is located on one side of the bullet-shaped connector 113 near the interface 11, and the diverter 112 is located on the other side of the middle of the bullet-shaped connector 113. A balancing flow controller 3 is installed on the end of each unidirectional pressure pipe 6 near the integrated Venturi head 2. A light-receiving plate 114 is installed on the upper part of the interface 11. A focusing plate 115 is installed on the upper part of the micro-end of the integrated Venturi head, and a laser emitter 116 is installed on the focusing plate 115. A mixer 12 is installed at the inlet of the circular pipe 1, and a micro-sodium bubble generator 13 is installed at the end of the mixer 12 away from the circular pipe 1. Multiple ultrasonic transducers 91 are arranged around the annular exposed cavity 9, and an outlet 92 is installed on one side of the annular exposed cavity 9. As described above, in this technical solution, the treatment liquid mixed with micro-nano bubbles enters the circular pipe 1 and flows uniformly towards the interface 11 under annular pressure. Hydraulic cavitation is generated in the integrated Venturi head 2, and the presence of micro-nano bubbles intensifies the cavitation effect, producing high-speed jets, energy impacts, free radicals, supercritical water, and the Leidenfrost effect, which can rapidly destroy the molecular structure of pollutants. Under the action of the rectifier, the treated liquid flows towards the unidirectional pressure pipe 6. Under water pressure, the liquid flows downwards along the PVDF fine wires 7 through micropores. This process can generate contact electrification (triboelectric electrification) catalysis, further mineralizing small pollutant molecules through non-free radical processes such as electron transfer and auxiliary derivation of free radicals. The single-filament long-line design ensures the output water volume while also relatively extending the contact time and contact area, ensuring sufficient frictional contact and improving efficiency. Multiple filaments form a curtain-like structure, improving the treatment efficiency per unit time. The rotating joint is controlled by the shaft-top rotation controller 5 and spare connectors, allowing for cyclic flushing and timely adjustment to prevent damage to some pipes. Laser focusing is also included to avoid incorrect docking angles. The interface and venturi tube feature a round-headed, flexible design to prevent interface jamming. During docking: the round head deflects inward, and the venturi tube returns to its original position after reaching the same deflection point, driving the round head back to its original position as well. Water flows through the arc-shaped diaphragm 8 to release energy, preventing direct water impact and thus avoiding damage to the monofilament from vibration and bottom erosion during prolonged operation. Water flows along the polymer arc-shaped diaphragm 8, facilitating collection and direct entry into the annular exposed cavity 9, indirectly forming a circular pipe 1. This facilitates acoustic catalysis by the ultrasonic transducer, improving catalytic efficiency and facilitating the discharge of the treated liquid (without the arc-shaped diaphragm 8, water would directly converge in the entire bottom cavity, requiring more ultrasonic transducers 91 and failing to generate the pipe effect to expedite water discharge). This achieves functions such as sterilization, algae removal, and decontamination.

[0032] Example 2:

[0033] like Figure 1-5As shown, this embodiment of the invention provides a curtain-type energy transfer catalytic water treatment device, including a circular pipe 1, an integrated Venturi head 2, a PVDF thin line 7, an arc-shaped diaphragm 8, and an annular exposed cavity 9. The inner ring of the circular pipe 1 is equally divided into sections for the interface 11. A schematic diagram of the connection between the integrated Venturi head 2 and the interface 11 is shown in A, representing the overall connection method. The interface 11 consists of a directional controller 111, a deflector 112, and a bullet-shaped connector 113, as shown from B to C. When the shaft-top rotation controller 5 distributor rotates to rotate the unidirectional pressure pipe 6, its bullet-shaped connector 113 will deflect.

[0034] The shaft top rotation controller 5 distributor is connected to the main shaft rotation shaft 4. The top end of the main shaft rotation shaft 4 is connected to the annular exposed cavity 9. The top end is connected to the center of each one-way pressure pipe 6 through the shaft top rotation controller 5 distributor to control the direction of rotation.

[0035] A light-receiving dark plate 114 is installed on the upper part of the interface 11, and a focusing plate 115 is installed on the upper part of the tail end of the integrated Venturi head 2. A laser emitter 116 is installed on the focusing plate 115.

[0036] A mixer 12 is installed at the inlet of the circular pipe 1, and one section of the mixer 12 is connected to the micro sodium bubble generator 13.

[0037] The integrated Venturi head 2 is tightly connected to the tail end of a one-way pressure pipe 6. A balancing flow controller 3 is installed on the one-way pressure pipe 6 after the tail end of the integrated Venturi head 2. A row of PVDF thin wires 7 is installed below the one-way pressure pipe 6. The connection points are drilled according to the diameter of the PVDF thin wires 7, which is 1.5 times the diameter of the PVDF thin wires 7. The number of PVDF thin wires 7 is greater than or equal to six.

[0038] The convex end of the arc-shaped tympanic membrane 8 is connected to the PVDF thread 7, and the parallel end is connected to the annular exposed cavity 9. An ultrasonic transducer 91 is installed around the annular exposed cavity 9, and finally the water is discharged through the outlet 92.

[0039] A water treatment method using a curtain-type transfer catalytic converter includes the following steps:

[0040] S1. The micro-sodium bubble generator 13 makes the treatment liquid contain micro-sodium bubbles. The treatment liquid mixed with micro-nano bubbles enters the circular pipe 1 and flows evenly towards the opposite port 11 under the action of annular pressure, and then enters the integrated Venturi head 2.

[0041] S2. The treatment liquid can generate hydraulic cavitation in the integrated Venturi head 2, and the presence of micro-nano bubbles can amplify the cavitation effect, generating high-speed jets, energy impacts, free radicals, supercritical water and the Leiden-Frost effect, which can quickly destroy the molecular structure of pollutants.

[0042] S3. Under the action of the rectifier, the treated liquid flows to the one-way pressure pipe 6. Under the action of water pressure, the liquid flows down along the PVDF fine line 7 through the micropores. This process can generate contact electrocatalysis and further mineralize polluting small molecules through non-free radical processes such as electron transfer and free radical processes generated by auxiliary derivation.

[0043] S4. The water flowing down the PVDF fine line 7 passes through the arc-shaped diaphragm 8 to release energy, avoiding the hydraulic impact of the water falling directly, and thus avoiding vibration damage and bottom damage of the PVDF fine line 7 under long-term operation.

[0044] S5. Water flows along the polymer arc-shaped diaphragm 8, which is easy to collect and directly enters the annular exposed cavity 9, indirectly forming a circular pipe 1, which is conducive to the ultrasonic diaphragm 91 to generate acoustic catalysis, improve catalytic efficiency, and also facilitates the discharge of the treated liquid.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A curtain transfer catalytic device comprising a circular duct (1), an integrated venturi head (2), a PVDF fine wire (7), an arc-shaped drum membrane (8), a shaft top rotary controller (5) and a ring-shaped open cavity (9), characterized in that: The inner circle of the circular pipeline (1) is provided with a plurality of uniformly distributed docking interfaces (11), the number of the docking interfaces (11) is greater than or equal to eight, and the integrated Venturi water head (2) is connected with the docking interfaces (11); The shaft top rotary controller (5) is connected with a main shaft rotating shaft (4), the bottom end of the main shaft rotating shaft (4) is connected with the annular exposed cavity (9), the shaft top rotary controller (5) is connected with a plurality of one-way pressure pipes (6), the ends of the one-way pressure pipes (6) away from the shaft top rotary controller (5) are connected with the integrated Venturi water head (2), the lower part of the one-way pressure pipe (6) is provided with a plurality of uniformly distributed PVDF fine wires (7), a small hole is formed in the one-way pressure pipe (6) close to the PVDF fine wire (7), the inner diameter of the small hole is 1.5 times the diameter of the PVDF fine wire (7), the number of the PVDF fine wire (7) is greater than or equal to six, the bottom of the PVDF fine wire (7) is connected with an arc-shaped eardrum (8), and the arc-shaped eardrum (8) is connected with the annular exposed cavity (9) in the horizontal direction. The docking interface (11) comprises a direction controller (111), a diverter (112) and a bullet-shaped joint (113), the bullet-shaped joint (113) is connected with the integrated Venturi water head (2), the direction controller (111) is arranged on one side of the bullet-shaped joint (113) close to one end of the docking interface (11), the diverter (112) is arranged on the other side of the middle part of the bullet-shaped joint (113), the end of the one-way pressure pipe (6) close to the integrated Venturi water head (2) is provided with a balance flow controller (3), and the periphery of the annular exposed cavity (9) is provided with a plurality of ultrasonic vibrating pieces (91). The annular exposed cavity (9) is provided with a water outlet (92) on one side.

2. A curtain transfer catalytic device according to claim 1, characterized in that: The water inlet of the circular pipeline (1) is provided with a mixed flow device (12), and the end of the mixed flow device (12) away from the circular pipeline (1) is provided with a micro-nano bubble generator (13).

3. A method of water treatment by curtain transfer catalysis according to claim 1, characterized in that: The method comprises the following steps: S1, the micro-nano bubble generator (13) makes the treatment liquid contain micro-nano bubbles, the treatment liquid mixed with the micro-nano bubbles enters the circular pipeline (1), and under the action of the annular pressure, the treatment liquid uniformly flows to the docking interface (11) and then enters the integrated Venturi water head (2); S2, the treatment liquid generates hydraulic cavitation in the integrated Venturi water head (2), the existence of the micro-nano bubbles intensifies the cavitation effect, and high-speed jet flow, energy impact, free radicals, supercritical water and the Leidenfrost effect are generated to rapidly destroy the molecular structure of pollutants; S3, under the action of the rectifier, the treated liquid flows to the one-way pressure pipe (6), under the action of water pressure, the liquid flows downward along the PVDF fine wire (7) through the small hole, the process generates contact electrification, and through the electron transfer non-free radical process and the free radical process generated by auxiliary derivation, the pollution small molecules are further mineralized; S4, the water flowing downward along the PVDF fine wire (7) passes through the arc-shaped eardrum (8) to release energy, so as to avoid the direct hydraulic impact and the vibration and damage of the PVDF fine wire (7) and the bottom caused by long-time operation. S5, the water flows along the polymer arc-shaped membrane (8), and is collected into the annular cavity (9) directly, and forms the circular pipeline (1) indirectly, which is beneficial to the sound catalysis generated by the ultrasonic vibrating piece (91), improves the catalytic efficiency, and is also beneficial to the discharge of the treatment liquid.

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