A high-efficiency ozone dissolution device

Abstract

This utility model relates to a high-efficiency ozone dissolved gas device, belonging to the technical field of wastewater treatment equipment. The high-efficiency ozone dissolved gas device includes: a tank, a drive mechanism, two or more stirring mechanisms, a water inlet mechanism, a water outlet mechanism, an ozone generating mechanism, and an automatic control system. The tank contains a wastewater treatment chamber with two or more layers of sieves. The stirring mechanisms are arranged in layers along the vertical central axis of the wastewater treatment chamber, arranged vertically from top to bottom. This utility model can effectively improve the utilization rate of ozone and achieve effective disinfection and sterilization of wastewater.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment equipment technology, and in particular to an ozone high-efficiency dissolved gas device. Background Technology

[0002] Ozone dissolved air devices are mainly used for the ozone addition treatment of urban domestic sewage and industrial wastewater, in order to improve ozone utilization, reduce energy consumption, and meet emission standards.

[0003] Patent CN220887175U discloses a high-efficiency ozone dissolution device, including a supporting steel ring. Support frames are fixedly mounted on both sides of the top of the supporting steel ring. A first mounting partition is fixedly connected to the top of one support frame, and a second mounting partition is fixedly connected to the top of the other support frame. An air compressor is mounted on one side of the top of the second mounting partition, and an ozone generator is mounted on the other side. This invention can be transported to a suitable location using casters. Wastewater to be treated can be placed in the dissolution pipe. Ozone is then introduced into the dissolution pipe through an air inlet hose via the air compressor and ozone generator. The air inlet hose can then be removed, and a servo motor can be turned to drive a connecting disc to rotate, thereby rotating the dissolution pipe. The rotating connecting disc can be limited by a balance support plate and a positioning collar, allowing the ozone and wastewater to mix rapidly for quick sterilization.

[0004] However, the ozone dissolving devices mentioned above cannot guarantee that ozone and sewage are fully mixed during use, resulting in the inability to inhale ozone. Alternatively, the ozone bubbles placed in the sewage tank may be too large, and after being placed in the sewage tank, the large bubbles will quickly diffuse into the air, making them ineffective and wasting resources. Utility Model Content

[0005] In order to solve the above-mentioned technical problems, this utility model provides an ozone high-efficiency dissolved gas device, which can effectively improve the utilization rate of ozone and achieve effective disinfection and sterilization of sewage.

[0006] This utility model provides an ozone high-efficiency dissolved gas device, which includes: a tank, a drive mechanism, two or more stirring mechanisms, a water inlet mechanism, a water outlet mechanism, an ozone generating mechanism, and an automatic control system.

[0007] The tank is equipped with a sewage treatment chamber, and the sewage treatment chamber is equipped with two or more layers of sieve plates.

[0008] The drive mechanism includes a rotary motor, a geared motor and a rotating shaft that are disposed at the upper end of the tank and extend into the wastewater treatment chamber along the direction of wastewater travel;

[0009] The stirring mechanism is set on the vertical central axis of the sewage treatment chamber and arranged in layers from top to bottom along the vertical direction;

[0010] The water inlet mechanism includes two or more water inlets located on the top of the tank, a water inlet pipe connected to the water inlets, a water inlet valve located on the water inlet pipe, and a water inlet pressure gauge located on the water inlet pipe.

[0011] The water outlet mechanism includes a water outlet located at the bottom of the tank, a water outlet pipe connected to the water outlet, a water outlet valve located on the water outlet pipe, and a water outlet pressure gauge located on the water outlet pipe.

[0012] The ozone generating mechanism includes an ozone generator body, two air inlet pipes connected to the ozone generator, an air inlet valve installed on the air inlet pipes, and air inlets installed on the side wall of the tank body and connected to the air inlet pipes respectively.

[0013] An automatic control system is provided, which automatically controls the drive mechanism, air intake, water intake, and water output by monitoring the ozone concentration and sewage pressure inside the tank in real time.

[0014] In the above technical solution, the ozone dissolution device of this application combines mechanical stirring with multi-layer sieve plates to greatly improve the ozone dissolution efficiency, mass transfer rate and contact time in the tank, thereby achieving efficient and automated ozone oxidation treatment.

[0015] The stirring mechanism is arranged in layers along the central axis, cooperating with multiple layers of screen plates to create a complex flow pattern within the tank, combining piston flow and fully mixed flow. This avoids short-circuiting and ensures sufficient reaction time for the treated medium. It dynamically breaks down large bubbles into microbubbles and increases turbulence, significantly increasing the contact area between the gas and liquid phases and solving the problems of low ozone solubility and poor mass transfer efficiency. Integrating ozone generation, gas-liquid mixing, reaction, and automatic control, it automatically adjusts motors and valves by real-time monitoring of ozone concentration and pressure, ensuring stable treatment results and reducing manual operation intensity and safety risks.

[0016] Optionally, the screen plate is arranged axially in the sewage treatment chamber and is divided into an upper screen plate and a lower screen plate. Both the upper screen plate and the lower screen plate have holes with a diameter of 0.1-0.5 mm, and the holes of the upper screen plate are larger than those of the lower screen plate.

[0017] In the aforementioned technical approach, the upper screen plate has a larger aperture. When ozone-containing wastewater passes through the upper screen plate, it undergoes an initial cut. Due to the larger aperture, the upper screen plate primarily serves to evenly distribute and further break up any potentially merging bubbles, while also reducing resistance and avoiding energy waste. The lower screen plate has a smaller aperture and is located below the mixing mechanism. It performs a second, finer cut on the ozone bubbles, generating smaller microbubbles. This staged treatment method is more efficient and has a lower energy consumption ratio than using a single-aperture screen plate, producing more microbubbles of more uniform size and stability.

[0018] Optionally, a filter screen is also provided at the top of the sewage treatment chamber. The filter screen is a metal mesh with a pore size of 1-5 cm, woven from stainless steel wire.

[0019] In the aforementioned technologies, the filter effectively intercepts debris that threatens mechanical components and most of the water droplets and foam carried by the airflow. The stainless steel wire can withstand the strong oxidizing environment of ozone and the corrosion of wastewater vapor for extended periods. The pore size of 1-5cm will not significantly hinder exhaust and will not cause unnecessary increases in tank pressure.

[0020] Optionally, each of the stirring mechanisms includes a support arm arranged in a horizontal direction and two rows of stirring rods of the same length arranged on the support arm in the same horizontal direction.

[0021] In the aforementioned technical solution, the staggered arrangement of the stirring rods in adjacent stirring mechanisms allows the stirring to cover the entire horizontal cross-section of the tank, preventing short-circuiting of the fluid in stirring blind zones and achieving true uniform mixing across the entire surface. As the fluid and bubbles rise, they are subjected to multiple, repeated shearing actions from the stirring rods at different angles and positions, resulting in finer and more uniformly cut bubbles, significantly improving dissolved air efficiency.

[0022] Optionally, the stirring rods of two adjacent stirring mechanisms are staggered, with each row of stirring rods arranged symmetrically in the vertical direction.

[0023] In the aforementioned technical solution, each row of stirring rods is symmetrically arranged vertically. This symmetrical structure ensures the dynamic balance of the stirring mechanism during high-speed rotation, resulting in smooth operation, low vibration, and low noise. This significantly reduces wear on bearings and the drive motor, extending the equipment's lifespan. The symmetrical stirring rods generate a balanced radial and axial flow, creating a stable and predictable circulation pattern within the tank. This promotes solid suspension and uniform gas-liquid distribution, avoiding localized eddies or impacts.

[0024] Optionally, the length of the stirring rod is 50-100cm, the distance between the stirring rods is 10-30cm, and the surface of the stirring rod is also provided with through holes.

[0025] In the aforementioned technical approach, the length of the stirring rod ensures that its stirring range effectively covers the cross-section of the tank, matching the tank diameter, which is the foundation for achieving full-area mixing. The spacing between the stirring rods creates a dense shear surface, ensuring a high-intensity and uniform shear force field, leaving no escape for bubbles and ensuring their complete breakup. Through-holes are provided on the surface of the stirring rods. When the stirring rods rotate at high speed, the low pressure in their central region draws in and entrains ozone gas. This gas can be squeezed out through the through-holes on the surface of the stirring rods under centrifugal force. Therefore, the fluid is subjected to both macroscopic shear from the stirring rods as a whole and microscopic shear from the high-speed gas-liquid mixture ejected from its orifices, resulting in excellent bubble dispersion.

[0026] Optionally, the water outlet mechanism further includes a spiral agitator disposed in the water outlet pipe, the spiral agitator being connected to the rotating shaft, and the spiral agitator including a propeller blade and a spiral agitator shaft.

[0027] In the aforementioned technologies, after ozone oxidation treatment, some suspended solids or micro-flocs in the water may not be fully mineralized. These may lead to sedimentation and accumulation in the effluent pipe during the low-flow-rate zone towards the outlet. The spiral agitator provides a built-in, online mixing function. Furthermore, the ozone reaction is a continuous process; even after wastewater containing residual dissolved ozone and incompletely oxidized intermediates enters the effluent pipe, the reaction continues. The gentle mixing provided by the spiral agitator provides the necessary mass transfer power for these remaining reactions.

[0028] Optionally, the ozone high-efficiency dissolved gas device further includes a skirt seat disposed at the bottom of the tank, the skirt seat including stiffening plates, a cover plate, and a manhole.

[0029] Among the aforementioned technical solutions, the skirt support can evenly transfer the large weight of the device to the concrete foundation and effectively resist the overturning moment caused by wind loads, seismic loads, etc., ensuring the safety and stability of the device.

[0030] In summary, this utility model has at least one of the following beneficial technical effects:

[0031] 1. The ozone high-efficiency dissolved gas device of this application, through the combination of mechanical stirring and multi-layer sieve plates, greatly improves the ozone dissolution efficiency, mass transfer rate and contact time in the tank, thereby achieving efficient and automated ozone oxidation treatment.

[0032] 2. By setting up an automatic control system, the system monitors the data from the dissolved ozone concentration sensor and pressure sensor in the tank in real time, and automatically adjusts the speed of the drive motor, the opening degree of the ozone inlet valve, and the start and stop of the water inlet valve and water outlet valve to ensure that the device always operates under the optimal process parameters. Attached Figure Description

[0033] Figure 1This is a schematic diagram of the overall structure of the ozone high-efficiency dissolved gas device according to an embodiment of this application;

[0034] Figure 2 This is a schematic diagram of the upper sieve plate in an embodiment of this application;

[0035] Figure 3 This is a schematic diagram of the filter screen structure in an embodiment of this application;

[0036] Figure 4 This is a schematic diagram of the spiral stirrer in an embodiment of this application.

[0037] Figure label:

[0038] 1-Tank body, 11-Sewage treatment chamber, 12-Screen plate, 121-Screen plate hole, 13-Filter screen, 131-Filter screen hole;

[0039] 21-Rotary motor, 22-Drive motor, 23-Rotating shaft;

[0040] 31-Support arm, 32-Stirring rod, 33-Through hole;

[0041] 41-Water inlet, 42-Water inlet pipe, 43-Water inlet valve, 44-Water inlet pressure gauge;

[0042] 51-Outlet, 52-Outlet pipe, 53-Outlet valve, 54-Outlet pressure gauge, 55-Spiral agitator, 551-Propeller blade, 552-Spiral agitator shaft;

[0043] 61-Ozone generator body, 62-Inlet pipe, 63-Inlet valve, 64-Inlet port;

[0044] 7-Skirt seat, 71-Firming plate, 71-Cover plate, 73-Manhole. Detailed Implementation

[0045] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0046] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0047] The following combination Figures 1 to 4 The present invention will be described in further detail below.

[0048] Reference Figure 1The ozone high-efficiency dissolved gas device includes: a tank 1, a drive mechanism, two stirring mechanisms, a water inlet mechanism, a water outlet mechanism, an ozone generating mechanism, an automatic control system (not shown), and a skirt 7.

[0049] The ozone dissolution device of this application combines mechanical stirring with multi-layer sieve plates to significantly improve the ozone dissolution efficiency, mass transfer rate, and contact time in wastewater within the tank, thereby achieving efficient and automated ozone oxidation treatment. The stirring mechanism is arranged in layers along the central axis, cooperating with the multi-layer sieve plates to create a complex flow pattern combining piston flow and completely mixed flow within the tank, avoiding short-circuiting and ensuring sufficient reaction time for the treated medium. Dynamically breaking large bubbles into microbubbles and increasing turbulence significantly increases the contact area between the gas and liquid phases, solving the problems of low ozone solubility and poor mass transfer efficiency. Integrating ozone generation, gas-liquid mixing, reaction, and automatic control, the device automatically adjusts motors and valves by real-time monitoring of ozone concentration and pressure, ensuring stable treatment results and reducing manual operation intensity and safety risks.

[0050] The tank body is provided with a sewage treatment chamber 11, and the sewage treatment chamber 11 is provided with two layers of screen plates 12. The screen plates 12 are arranged axially within the sewage treatment chamber 11 and are divided into an upper screen plate and a lower screen plate, as shown below. Figure 2 As shown, the aperture of the screen plate holes 121 of the upper screen plate is 0.1-0.5 mm, and the aperture of the upper screen plate is larger than that of the lower screen plate. A filter screen 13 is also provided at the top of the wastewater treatment chamber 11, such as... Figure 3 As shown, the filter screen 13 is a metal mesh woven from stainless steel wire, and the aperture of the filter screen 131 is 1-5cm.

[0051] The drive mechanism includes a rotary motor 21, a reduction motor 22, and a rotating shaft 23 that extends into the sewage treatment chamber 11 along the direction of sewage travel, all located at the upper end of the tank 1.

[0052] Specifically, the rotary motor 21 and the geared motor 22 are located on the top of the outer wall of the tank and are directly connected to the upper end of the rotating shaft 23. The connection between the top of the inner wall of the tank 1 and the rotating shaft 23 is sealed with packing to ensure the airtightness of the tank. The rotating shaft 23 can be configured to extend into the wastewater treatment chamber 11 along the direction of wastewater flow (e.g., from top to bottom). The rotary motor 21 is configured to provide the rotating shaft 23 with a variable rotational power, and the geared motor 22 is configured to control the rotational speed of the rotating shaft 23. For example, the rotary motor 21 can be configured to drive the rotating shaft 23 to move in a clockwise or counterclockwise direction, and the geared motor 22 can be configured to control the rotational speed of the rotating shaft 23. When the rotational speed of the rotating shaft 23 is fast, the geared motor 22 is activated to slow down the rotational speed of the rotating shaft 23. The stirring mechanism is connected to the rotating shaft 23 and moves in a clockwise or counterclockwise direction under the drive of the rotating shaft 23, thereby driving the stirring rod 32 to mix and stir the wastewater and ozone entering the wastewater treatment chamber 11.

[0053] The stirring mechanisms are arranged in layers from top to bottom along the vertical central axis of the wastewater treatment chamber 11. Each stirring mechanism includes a horizontally positioned support arm 31 and two rows of stirring rods 32 of the same length arranged on the support arm 31. The stirring rods 32 of adjacent stirring mechanisms are staggered, and each row of stirring rods 32 is symmetrically arranged along the vertical direction. The length of each stirring rod 32 is 100-200 cm, the distance between each stirring rod 32 is 20-70 cm, and the surface of each stirring rod 32 is provided with through holes 33.

[0054] The water inlet mechanism includes four water inlets 41 located on the top of the tank 1, a water inlet pipe 42 connected to the water inlets, a water inlet valve 43 located on the water inlet pipe 42, and a water inlet pressure gauge 44 located on the water inlet pipe 42.

[0055] The water outlet mechanism 5 includes a water outlet 51 located at the bottom of the tank 1, a water outlet pipe 52 connected to the water outlet 51, a water outlet valve 53 located on the water outlet pipe 52, and a water outlet pressure gauge 54 located on the water outlet pipe 52. The water outlet mechanism 5 also includes a spiral stirrer 55 located in the water outlet pipe 52, such as... Figure 4 As shown, the spiral stirrer 55 is provided with a spiral blade 551 and a spiral stirring shaft 552. The spiral stirrer 55 is connected to the rotating shaft 23, and the rotating shaft 23 drives the spiral stirrer 55 to stir.

[0056] The ozone generating mechanism includes an ozone generator body 61, two air inlet pipes 62 connected to the ozone generator body 61, an air inlet valve 63 disposed on the air inlet pipes 62, and air inlets 64 disposed on the side wall of the tank body 1 and respectively connected to the air inlet pipes 62. The two air inlets 64 are respectively disposed on the side wall of the corresponding tank body 1 at the positions of the two stirring mechanisms.

[0057] The automatic control system monitors the ozone concentration and sewage pressure inside the tank in real time, and automatically controls the rotary motor 21, the geared motor 22, the inlet valve 43, the outlet valve 53, and the air inlet valve 63.

[0058] The skirt support includes a stiffening plate 71, a cover plate 72, and a manhole 73.

[0059] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. An ozone-efficient gas dissolving device, characterized by, The ozone high-efficiency dissolved air device includes: a tank, a drive mechanism, two or more stirring mechanisms, a water inlet mechanism, a water outlet mechanism, an ozone generating mechanism, and an automatic control system; The tank is equipped with a sewage treatment chamber, and the sewage treatment chamber is equipped with two or more layers of sieve plates. The drive mechanism includes a rotary motor, a geared motor and a rotating shaft that are disposed at the upper end of the tank and extend into the wastewater treatment chamber along the direction of wastewater travel; The stirring mechanism is set on the vertical central axis of the sewage treatment chamber and arranged in layers from top to bottom along the vertical direction; The water inlet mechanism includes two or more water inlets located on the top of the tank, a water inlet pipe connected to the water inlets, a water inlet valve located on the water inlet pipe, and a water inlet pressure gauge located on the water inlet pipe. The water outlet mechanism includes a water outlet located at the bottom of the tank, a water outlet pipe connected to the water outlet, a water outlet valve located on the water outlet pipe, and a water outlet pressure gauge located on the water outlet pipe. The ozone generating mechanism includes an ozone generator body, two air inlet pipes connected to the ozone generator, an air inlet valve installed on the air inlet pipes, and air inlets installed on the side wall of the tank body and connected to the air inlet pipes respectively. An automatic control system is provided, which automatically controls the drive mechanism, air intake, water intake, and water output by monitoring the ozone concentration and sewage pressure inside the tank in real time.

2. The ozone high-efficiency dissolved gas device according to claim 1, characterized in that, The screen plate is arranged axially in the sewage treatment chamber and is divided into an upper screen plate and a lower screen plate. Both the upper screen plate and the lower screen plate have holes with a diameter of 0.1-0.5mm. The holes of the upper screen plate are larger than those of the lower screen plate.

3. The ozone high-efficiency dissolved gas device according to claim 1 or 2, characterized in that, The top of the sewage treatment chamber is also equipped with a filter screen, which is a metal mesh woven from stainless steel wire with a pore size of 1-5cm.

4. The ozone high-efficiency dissolved gas device according to claim 1, characterized in that, Each of the stirring mechanisms includes a support arm arranged in a horizontal direction and two rows of stirring rods of the same length arranged on the support arm in the same horizontal direction.

5. The ozone high-efficiency dissolved gas device according to claim 4, characterized in that, The stirring rods of two adjacent stirring mechanisms are staggered, and each row of stirring rods is symmetrically arranged in the vertical direction.

6. The ozone high-efficiency dissolved gas device according to claim 5, characterized in that, The stirring rod is 100-200cm long, the distance between the stirring rods is 20-70cm, and the surface of the stirring rod is also provided with through holes.

7. The ozone high-efficiency dissolved gas device according to claim 1, characterized in that, The water outlet mechanism includes a spiral agitator installed in the water outlet pipe. The spiral agitator is connected to the rotating shaft and includes a propeller blade and a spiral agitator shaft.

8. The ozone high-efficiency dissolved gas device according to claim 1, characterized in that, The ozone high-efficiency dissolved gas device also includes a skirt base installed at the bottom of the tank, the skirt base including stiffening plates, a cover plate, and a manhole.

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