Large-volume uniform bubble generating device capable of realizing high occupancy of liquid bubbles

Abstract

The invention provides a large-volume uniform bubble generating device capable of realizing high occupancy of liquid bubbles. The air compressor is used for providing a stable air source; the pressure reducing valve is used for adjusting the pressure of air output by the air compressor; the air flow monitoring device is used for measuring the flow of air entering each bubble strip in a bubble generation plate in real time and dynamically adjusting the flow of air entering each bubble strip in the bubble generation plate; the first-stage shunt valve and the second-stage shunt valve are used for shunting air; the bubble generating plate is used for generating a uniform bubble field; compared with the prior art, the invention has the following beneficial effects: through the combination of the pressure reducing valve and the high-precision air flow monitoring device, precise control of gas flow and pressure intensity is realized, the uniformity of a bubble field is improved, the common problem of uneven bubble distribution in traditional equipment is avoided, and the production efficiency is improved. Air is supplied to the 48 bubble strips through the two flow divider valves with one inlet and 24 outlets, and a plurality of micropores are formed in each bubble strip, so that bubbles in a large-area water body are uniformly generated.

Description

Technical Field

[0001] The present invention relates to the technical field of bubble generating equipment, and in particular to a large-volume uniform bubble generating device capable of achieving a high occupancy rate of liquid bubbles. Background Art

[0002] In the actual marine environment, bubble flow has multiple positive effects on ships and offshore platforms. Bubble flow can form a bubble film around the bottom of the ship or the platform, reducing friction resistance and thus reducing fuel consumption. This phenomenon is called bubble drag reduction. At the same time, bubble flow can also buffer the impact of water flow on the structure, reduce vibration and noise, and improve the concealment of the ship, which is extremely important in military applications such as submarines. In addition, bubble flow can also improve the stability of the offshore platform, slow down the violent movement caused by waves, and regulate the propagation of underwater sound waves, thereby improving the performance of the sonar system and reducing noise interference. In the field of ship and marine engineering, in order to deeply study the impact of ocean bubbles on ships and offshore platforms, the demand for accurate simulation of gas-liquid two-phase flow is increasing. By controlling the generation of large-volume and high-occupancy bubbles, we can better understand and predict changes in the marine environment, which is conducive to optimizing the navigation performance of ships and ensuring the structural design safety of offshore platforms. It can also provide more reliable technical support for marine engineering and environmental simulation. At the same time, in the fields of water treatment, aquaculture, landscape design, etc., uniformly distributed large-volume bubble fields can effectively improve the oxygenation efficiency of water bodies and enhance the self-purification ability of water bodies.

[0003] Existing equipment has certain deficiencies in generating large-area, evenly distributed bubbles, which can be summarized as follows: 1. Poor system stability: Due to the lack of precise flow control and pressure regulation mechanisms, the existing devices have large fluctuations in air pressure and gas volume when generating bubbles, and the instability of the bubble field is high, making it difficult to maintain efficient bubble generation for a long time. 2. Uneven distribution of bubbles: In the prior art, the bubble concentration of a single gas-liquid mixture is low, and bubble generation is uneven. Especially in large areas of water, bubbles are often concentrated in local areas and cannot be evenly distributed. 3. High cost: In order to improve the bubble generation effect, a large-throughput booster pump and complex gas-liquid mixing equipment are usually required, which leads to high manufacturing costs and increased operational complexity, which is not conducive to large-scale applications. Therefore, there is an urgent need for a device that can accurately, efficiently and evenly generate bubbles in large areas of water to meet the needs of different application scenarios. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a large-volume uniform bubble generating device that can achieve a high occupancy rate of liquid bubbles, so as to solve the problems of poor system stability, uneven bubble distribution and high cost of the existing bubble generating devices.

[0005] In order to achieve the above-mentioned purpose and other related purposes, the present invention provides the following technical solutions:

[0006] A large-volume uniform bubble generating device capable of achieving a high occupancy rate of liquid bubbles comprises an air compressor for providing a stable gas source, a pressure reducing valve for adjusting the gas pressure output by the air compressor, an air flow monitoring device for measuring the air flow entering each bubble strip in a bubble generating plate in real time and dynamically adjusting the air flow entering each bubble strip in the bubble generating plate, a primary branch valve and a secondary branch valve for diverting air, and a bubble generating plate for generating a uniform bubble field; the outlet of the air compressor is connected to the inlet of the pressure reducing valve through a gas connecting pipe, the outlet of the pressure reducing valve is connected to the input end of the air flow monitoring device through the gas connecting pipe, the output end of the air flow monitoring device is connected to the inlet of the primary branch valve through the gas connecting pipe, the outlet of the primary branch valve is connected to the inlet of the secondary branch valve through the gas connecting pipe, and the outlet of the secondary branch valve is connected to the inlet of the bubble generating plate through the gas connecting pipe.

[0007] In one embodiment of the present invention, a pressure regulating controller is provided in the pressure reducing valve. The pressure regulating controller is used to automatically adjust the opening of the valve when the inlet air pressure exceeds the set value, and adjust the air flow through the pressure reducing valve so that the outlet gas pressure is always maintained at the set value, thereby ensuring a stable air pressure delivered to the bubble generating plate, wherein the required air pressure value is set by manually rotating the adjusting screw on the pressure reducing valve.

[0008] In one embodiment of the present invention, the air flow monitoring device includes an air flow sensor and a flow controller, and the air flow sensor and the flow controller are connected to an industrial control computer via a wire or a network. The air flow sensor is used to measure the air flow in the pipeline and transmit the measured air flow data to the industrial control computer. The flow controller is used to adjust the built-in valve opening in real time according to the control information fed back by the industrial control computer to ensure a stable airflow delivered to the bubble generating plate.

[0009] In one embodiment of the present invention, the industrial control computer is used to receive the air flow data sent by the air flow sensor, and determine the size relationship between the air flow data and a preset target value; if the air flow data is lower than the preset target value, the industrial control computer sends control information to the flow controller, and the flow controller controls the built-in valve opening to increase according to the control information; if the air flow data is higher than the preset target value, the industrial control computer sends control information to the flow controller, and the flow controller controls the built-in valve opening to decrease according to the control information.

[0010] In one embodiment of the present invention, the first-level branch valve is a three-way valve, the inlet of the three-way valve is connected to the output end of the air flow monitoring device through a gas connecting pipe, and the two outlets of the three-way valve are connected to the inlet of the second-level branch valve through a gas connecting pipe.

[0011] In one embodiment of the present invention, the secondary branch valve includes two diverter valves connected to the outlet of the three-way valve through a gas connecting pipe, the diverter valve includes a fixed pipe and a plurality of control valves installed on the fixed pipe, the inlet of the fixed pipe is connected to the outlet of the three-way valve through the gas connecting pipe, the outlet of the fixed pipe is connected to the inlet of the control valve, and the outlet of the control valve is connected to the inlet of the bubble generating plate through the gas connecting pipe.

[0012] In one embodiment of the present invention, the plurality of control valves are divided into two rows and the two rows of control valves are symmetrically installed on the fixed pipe, and the plurality of control valves in each row are evenly installed on the fixed pipe along the length direction of the fixed pipe.

[0013] In one embodiment of the present invention, the bubble generating plate includes two bubble generating components which are interconnected and connected to the diverter valve via a gas connecting pipe, the bubble generating component includes a plurality of bubble strips which are connected in parallel in sequence, the inlet of the bubble strips is connected to the outlet of the control valve via a gas connecting pipe, and the surface of the bubble strips is provided with a plurality of micro-nano-scale air outlet holes for generating a uniform bubble field.

[0014] As described above, the present invention has the following beneficial effects: 1. High-precision bubble control system: The present invention realizes precise control of gas flow and pressure through the combination of pressure reducing valve and high-precision air flow monitoring device; it is difficult for traditional bubble generating devices to accurately control the generation and distribution of bubbles in large-volume water bodies, while the present invention ensures the consistency of bubble size and quantity generated by each bubble strip through refined flow regulation, improves the uniformity of the bubble field, avoids the common problem of uneven bubble distribution in traditional equipment, and improves the overall effect of the bubble field. 2. Multi-channel shunt design: The 48 bubble strips of the present invention are respectively supplied with air through two 1-in 24-out shunt valves, and each bubble strip is provided with multiple micropores, so as to realize uniform generation of bubbles in a large area of ​​water body; this shunt structure can greatly improve the applicability of the bubble generating device and ensure the realization of uniform bubble distribution in a large range of water bodies. 3. Simple and efficient structure: Compared with the existing complex gas-liquid mixing system, the present invention adopts a simple pipeline connection and bubble strip design, and uses a single air compressor to supply air, which significantly simplifies the system structure and reduces the cost of equipment manufacturing and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of a large-volume uniform bubble generating device capable of achieving a high liquid bubble occupancy rate disclosed in an embodiment of the present invention;

[0016] Figure 2 It is a schematic diagram showing the overall structure of a diverter valve in a large-volume uniform bubble generating device capable of achieving a high liquid bubble occupancy rate disclosed in an embodiment of the present invention;

[0017] Figure 3 It shows a schematic diagram of the overall structure of a bubble generating plate in a large-volume uniform bubble generating device capable of achieving a high liquid bubble occupancy rate disclosed in an embodiment of the present invention.

[0018] Component number description

[0019] 1. Air compressor; 2. Pressure reducing valve; 3. Air flow monitoring device; 4. Primary branch valve; 5. Secondary branch valve; 51. Diverter valve; 511. Fixed pipe; 512. Control valve; 6. Bubble generating plate; 61. Bubble generating assembly; 611. Bubble strip; 7. Gas connecting pipe; 8. Industrial computer. DETAILED DESCRIPTION

[0020] The following specific embodiments illustrate the implementation of the present invention, and those familiar with the technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0021] See also Figures 1 to 3 The present invention provides a large-volume uniform bubble generating device which can achieve a high occupancy rate of liquid bubbles. It should be noted that the occupancy rate of bubbles in water can be adjusted by adjusting the gas flow rate. In the present invention, a large range of gas flow rates passing through the bubble strip 611 can be supported (currently 0-300L / min has been used, and it is expected to reach at least 500L / min), so a bubble field with a high occupancy rate can be generated; it includes an air compressor 1, a pressure reducing valve 2, an air flow monitoring device 3, a primary branch valve 4, a secondary branch valve 5 and a bubble generating plate 6; wherein, the air compressor 1: is used to provide a stable air source, continuously supplying compressed air to the bubble generating plate 6, to ensure the continuity of bubble generation.

[0022] The pressure reducing valve 2 is used to adjust the pressure of the gas output by the air compressor 1 to ensure stable air pressure and avoid excessive air pressure affecting the bubble generation effect. It should be noted that a pressure regulating controller is provided in the pressure reducing valve 2. The pressure regulating controller is used to automatically adjust the opening of the valve when the inlet air pressure exceeds the set value, and adjust the air flow through the pressure reducing valve 2 so that the outlet gas pressure is always maintained at the set value, ensuring a stable air pressure delivered to the bubble generation plate 6. The required air pressure value can also be set by manually rotating the adjusting screw on the pressure reducing valve 2.

[0023] The air flow monitoring device 3 integrates a high-precision air flow sensor and a flow controller, which can monitor the air flow entering each bubble strip 611 in the bubble generating plate 6 in real time, and dynamically adjust the air flow through the industrial control computer 8; it should be noted that the air flow sensor and the flow controller are connected to the industrial control computer 8 through a wire or a network, the air flow sensor is used to measure the air flow in the pipeline, and transmit the measured air flow data to the industrial control computer 8, and the flow controller is used to adjust the built-in valve opening in real time according to the control information fed back by the industrial control computer 8 to ensure a stable airflow delivered to the bubble generating plate 6, so the flow controller can be combined with the computer's dynamic compensation control to adjust the air flow in the pipeline to the target value according to user needs and application scenarios, thereby ensuring that the occupancy rate and distribution of bubbles in the water are more accurate and stable;

[0024] The industrial control computer 8 is used to monitor and operate the entire system in real time, and combined with sensor feedback, ensure accurate control of parameters such as air pressure and flow; it should be noted that the industrial control computer 8 is used to receive the air flow data sent by the air flow sensor, and judge the size relationship between the air flow data and the preset target value; if the air flow data is lower than the preset target value, the industrial control computer 8 controls the built-in valve opening to increase through the flow controller; if the air flow data is higher than the preset target value, the industrial control computer 8 controls the built-in valve opening to decrease through the flow controller, thereby ensuring that the gas pressure and flow input to the bubble generating plate 6 remain stable; in this embodiment, the air flow monitoring device 3 adopts the Aosun AS200 gas mass flow controller, and the target value can be input through the upper computer control program of the sensor. The target air flow (standard atmospheric pressure, room temperature conditions), and the AS200 gas flow controller also has the ability to measure the air flow, and transmit the data to the host computer or additional acquisition equipment in the form of voltage. The control program of the host computer has been calibrated at the factory, and the voltage data will correspond to the gas flow one by one; according to the real-time data transmission between the host computer and the AS200 gas flow controller, if the flow through the AS200 gas flow controller is lower than the set target value, the host computer controls the valve opening through the AS200 gas flow controller to increase, if it is higher than the target value, the host computer controls the valve opening through the AS200 gas flow controller to decrease, so as to ensure that the gas pressure and flow input to the bubble generating plate 6 remain stable, thereby ensuring the accuracy and stability of bubble generation, and there will be no situation where the flow is sometimes large and sometimes small.

[0025] The first-level branch valve 4 is used to divert air and control the airflow into different pipes; it should be noted that the first-level branch valve 4 is a three-way valve, the inlet of the three-way valve is connected to the output end of the air flow monitoring device 3 through the gas connecting pipe 7, and the two outlets of the three-way valve are connected to the inlet of the second-level branch valve 5 through the gas connecting pipe 7.

[0026] The secondary shunt valve 5 is also used to shunt air and control the airflow into different bubble strips 611; it should be noted that the secondary shunt valve 5 includes two shunt valves 51 connected to the outlet of the three-way valve through the gas connecting pipe 7. The secondary shunt valve 5 in this embodiment is a shunt valve 51 with two upper and lower rows of 24 small valves in total. Each control valve 512 is connected to a bubble strip 611 through the gas connecting pipe 7. By opening or closing a certain control valve 512, bubbles can be generated in the bubble strips 611 at different positions, so that it can adapt to different scene requirements; The secondary branch valve 5 further accurately distributes the gas flow to 24 gas connecting pipes 7. Each gas connecting pipe 7 is responsible for supplying a certain amount of gas to the bubble generating plate 6. Since the lengths of the gas connecting pipes 7 connected to the bubble generating plate 6 by the secondary branch valve 5 are consistent, the size parameters of the bubble strips 611 are consistent, and the multiple bubble strips 611 are in the same plane, the pressure and flow rate of the gas diverted to each bubble strip 611 are equal, thereby ensuring that the gas flow of each bubble strip 611 is uniform and avoiding the problem of uneven local bubble density. For details, please refer to Figure 2 .

[0027] The bubble generating plate 6 is used to generate a uniform bubble field; it should be noted that the bubble generating plate 6 includes two bubble generating components 61 which are interconnected and connected to the diverter valve through the gas connecting pipe 7, and the bubble generating component 61 includes a plurality of bubble strips 611 which are parallel to each other, and the inlet of the bubble strips 611 is connected to the outlet of the control valve 52 through the gas connecting pipe 7, and a plurality of micro-nano-scale air outlet holes are provided on the surface of the bubble strips 611; each bubble generating component 61 of the present embodiment includes 24 bubble strips 611, so the bubble generating plate 6 is composed of 24 bubble strips 611 in two rows, 48 ​​bubble strips 611 in total, and the micropores provided on the bubble strips 611 are of micro-nano-scale, and the air forms bubbles in the water through the micropores to generate a uniform bubble field; the bubble diameter can also be adjusted by making bubble strips 611 with micropores of different sizes, for details, please refer to Figure 3 .

[0028] Specifically, the outlet of the air compressor, i.e., the air compressor 1, is connected to the inlet of the pressure reducing valve 2 through the gas connecting pipe 7, and the outlet of the pressure reducing valve 2 is connected to the input end of the air flow monitoring device 3 through the gas connecting pipe 7. The output end of the air flow monitoring device 3 then distributes the air evenly to 48 bubble bars 611 through the first-level branch valve 4 and the second-level branch valve 5. Each bubble bar 611 is evenly arranged in the water body to be treated, and generates a uniform bubble field through the small holes on its surface; the air flow monitoring device 3 is connected to the industrial control computer 8 to facilitate the precise control of the flow rate.

[0029] In summary, the present invention has the following beneficial effects: 1. High-precision bubble control system: The present invention realizes precise control of gas flow and pressure through the combination of pressure reducing valve 2 and high-precision air flow monitoring device 3; traditional bubble generating devices are difficult to accurately control the amount and distribution of bubbles generated in large volumes of water, while the present invention ensures the consistency of bubble size and quantity generated by each bubble strip 611 through refined flow regulation, improves the uniformity of the bubble field, avoids the common problem of uneven bubble distribution in traditional equipment, and improves the overall effect of the bubble field. 2. Multi-channel shunt design: The 48 bubble strips 611 of the present invention are respectively supplied with air through a 1-in 24-out shunt valve 51, and each bubble strip 611 is provided with a plurality of micropores, which realizes uniform generation of bubbles in a large area of ​​water; this shunt structure can greatly improve the applicability of the bubble generating device and ensure the realization of uniform bubble distribution in a large range of water bodies.

[0030] 3. Simple and efficient structure: Compared with the existing complex gas-liquid mixing system, the present invention adopts a simple pipeline connection and bubble bar 611 design, and uses a single air compressor to supply air, which significantly simplifies the system structure and reduces the cost of equipment manufacturing and maintenance. 4. Intelligent control system: Through the combination of industrial control computer 8 and sensor, the present invention can intelligently monitor and automatically adjust the system to ensure that various parameters (such as air pressure, flow, etc.) are always maintained within the set range, improving the reliability and stability of equipment operation; through real-time monitoring and adjustment of industrial control computer 8, the present invention ensures the stability of the system in long-term operation, avoids equipment failures caused by air pressure fluctuations or uneven flow, and is suitable for long-term continuous operation requirements. 5. Suitable for accurate simulation of marine aeration environment: The design of the present invention is particularly suitable for simulating the aeration environment in the ocean. By accurately controlling the size and distribution of bubbles, it can provide ideal simulation conditions for scientific research experiments or marine engineering.

[0031] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. All equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A large-volume uniform bubble generating device capable of achieving a high liquid bubble occupancy rate, characterized in that: The invention comprises an air compressor (1) for providing a stable air source, a pressure reducing valve (2) for adjusting the gas pressure output by the air compressor (1), an air flow monitoring device (3) for measuring in real time the air flow rate of each air bubble strip (611) in the air bubble generating plate (6) and dynamically adjusting the air flow rate of each air bubble strip (611) in the air bubble generating plate (6), a primary branch valve (4) and a secondary branch valve (5) for diverting air, and a air bubble generating plate (6) for generating a uniform air bubble field; The outlet of the air compressor (1) is connected to the inlet of the pressure reducing valve (2) through a gas connecting pipe (7), the outlet of the pressure reducing valve (2) is connected to the input end of the air flow monitoring device (3) through a gas connecting pipe (7), the output end of the air flow monitoring device (3) is connected to the inlet of the primary branch valve (4) through a gas connecting pipe (7), the outlet of the primary branch valve (4) is connected to the inlet of the secondary branch valve (5) through a gas connecting pipe (7), and the outlet of the secondary branch valve (5) is connected to the inlet of the bubble generating plate (6) through a gas connecting pipe (7).

2. A large-volume uniform bubble generating device capable of achieving a high liquid bubble occupancy rate according to claim 1, characterized in that: The pressure reducing valve (2) is provided with a pressure regulating controller, and the pressure regulating controller is used to automatically adjust the valve opening when the inlet air pressure exceeds the set value, and adjust the air flow through the pressure reducing valve (2), so that the outlet gas pressure is always maintained at the set value, ensuring a stable air pressure delivered to the bubble generating plate (6), wherein the required air pressure value is set by manually rotating the adjusting screw on the pressure reducing valve (2).

3. A large-volume uniform bubble generating device capable of achieving high liquid bubble occupancy rate according to claim 1, characterized in that: The air flow monitoring device (3) comprises an air flow sensor and a flow controller, both of which are connected to an industrial control computer (8) via a wire or a network. The air flow sensor is used to measure the air flow in the pipeline and transmit the measured air flow data to the industrial control computer (8). The flow controller is used to adjust the opening of the built-in valve in real time according to the control information fed back by the industrial control computer (8), so as to ensure a stable airflow delivered to the bubble generating plate (6).

4. A large-volume uniform bubble generating device capable of achieving a high liquid bubble occupancy rate according to claim 3, characterized in that: The industrial control computer (8) is used to receive the air flow data sent by the air flow sensor and determine the magnitude relationship between the air flow data and a preset target value; If the air flow data is lower than the preset target value, the industrial control computer (8) sends control information to the flow controller, and the flow controller controls the built-in valve opening to increase according to the control information; if the air flow data is higher than the preset target value, the industrial control computer (8) sends control information to the flow controller, and the flow controller controls the built-in valve opening to decrease according to the control information.

5. A large-volume uniform bubble generating device capable of achieving high liquid bubble occupancy rate according to claim 1, characterized in that: The primary branch valve (4) is a three-way valve, the inlet of the three-way valve is connected to the output end of the air flow monitoring device (3) through a gas connecting pipe (7), and the two outlets of the three-way valve are connected to the inlet of the secondary branch valve (5) through a gas connecting pipe (7).

6. A large-volume uniform bubble generating device capable of achieving a high liquid bubble occupancy rate according to claim 1, characterized in that: The secondary branch valve (5) comprises two diverter valves (51) connected to the outlet of the three-way valve via a gas connecting pipe (7); the diverter valve (51) comprises a fixed pipe (511) and a plurality of control valves (512) mounted on the fixed pipe (511); the inlet of the fixed pipe (511) is connected to the outlet of the three-way valve via a gas connecting pipe (7); the outlet of the fixed pipe (511) is connected to the inlet of the control valve (512); and the outlet of the control valve (512) is connected to the inlet of the bubble generating plate (6) via a gas connecting pipe (7).

7. A large-volume uniform bubble generating device capable of achieving a high liquid bubble occupancy rate according to claim 6, characterized in that: The multiple control valves (512) are divided into two rows and the two rows of control valves (512) are symmetrically installed on the fixed pipe (511), and the multiple control valves (512) in each row are evenly spaced and installed on the fixed pipe (511) along the length direction of the fixed pipe (511).

8. A large-volume uniform bubble generating device capable of achieving high bubble occupancy in liquid according to claim 1, characterized in that: The bubble generating plate (6) comprises two bubble generating components (61) which are connected to each other and connected to the diverter valve via a gas connecting pipe (7); the bubble generating component (61) comprises a plurality of bubble strips (611) which are connected in parallel in sequence; the inlet of the bubble strip (611) is connected to the outlet of the control valve (512) via a gas connecting pipe (7); and the surface of the bubble strip (611) is provided with a plurality of micro-nano-scale air outlet holes for generating a uniform bubble field.

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