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

Abstract

The application provides a large-volume uniform bubble generating device with high liquid bubble occupancy, which comprises an air compressor for providing a stable air source, a pressure reducing valve for adjusting the air pressure output by the air compressor, an air flow monitoring device for measuring and dynamically adjusting the air flow into each bubble strip of a bubble generating plate in real time, a first shunt valve and a second shunt valve for shunting air, and a bubble generating plate for generating a uniform bubble field; the application has the following beneficial effects: the combination of the pressure reducing valve and the high-precision air flow monitoring device realizes precise control of the air flow and pressure, improves the uniformity of the bubble field, and avoids the common problem of uneven bubble distribution in traditional equipment; 48 bubble strips of the application are respectively supplied with air through two shunt valves with 24 outlets, and a plurality of micropores are arranged in each bubble strip, so that uniform bubble generation in a large-area water body is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bubble generating equipment, in particular to a large-volume uniform bubble generating device capable of realizing high-occupancy liquid bubbles. BACKGROUND

[0002] In the actual marine environment, the bubble flow has multiple positive effects on ships and offshore platforms. The bubble flow can form a bubble film around the ship bottom or platform, reducing frictional resistance and thus reducing fuel consumption, which is known as bubble drag reduction. At the same time, the 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 particularly important in military applications such as submarines. In addition, the bubble flow can also improve the stability of the offshore platform, reduce the severe motion caused by waves, and adjust the propagation of underwater sound waves, thereby improving the performance of the sonar system and reducing noise interference. In the field of shipbuilding and offshore engineering, in order to better understand and predict the changes in the marine environment, there is an increasing demand for accurate simulation of gas-liquid two-phase flow. By controlling the generation of large-volume, high-occupancy bubbles, it is possible to better understand and predict the changes in the marine environment, which is beneficial to optimizing the navigation performance of ships and ensuring the safety of offshore platform structural design. 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, and landscape design, a large-volume bubble field with uniform distribution can effectively improve the oxygenation efficiency of water bodies and enhance the self-purification capacity of water bodies.

[0003] The existing equipment has certain deficiencies in generating large-area, uniformly 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 air volume when generating bubbles, resulting in high instability of the bubble field and difficulty in maintaining efficient bubble generation for a long time. 2. Bubble distribution is uneven: In existing technologies, the bubble concentration of a single gas-liquid mixing is low, and the bubble generation is uneven, especially in large-area water bodies, where bubbles tend to concentrate in local areas, making it difficult to achieve uniform distribution. 3. High cost: In order to improve the bubble generation effect, large-flow booster pumps and complex gas-liquid mixing equipment are usually used, resulting in high manufacturing costs and increased operational complexity, which is not conducive to large-scale application. Therefore, there is an urgent need for a device that can accurately, efficiently, and uniformly generate bubbles in large-area water bodies to meet the needs of different application scenarios. SUMMARY

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present application is to provide a large-volume uniform bubble generating device capable of realizing high-occupancy liquid bubbles, which solves the problems of poor system stability, uneven bubble distribution, and high cost of existing bubble generating devices.

[0005] To achieve the above object and other related objects, the present application provides the following technical solutions.

[0006] A large-volume uniform bubble generating device capable of realizing high-occupancy liquid bubbles, comprising an air compressor for providing a stable air source, a pressure reducing valve for adjusting the air pressure output by the air compressor, an air flow monitoring device for measuring and dynamically adjusting the air flow into each bubble strip of a bubble generating plate in real time, a primary shunt valve and a secondary shunt valve for shunting 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 an air connection pipe, the outlet of the pressure reducing valve is connected to the input end of the air flow monitoring device through an air connection pipe, the output end of the air flow monitoring device is connected to the inlet of the primary shunt valve through an air connection pipe, the outlet of the primary shunt valve is connected to the inlet of the secondary shunt valve through an air connection pipe, and the outlet of the secondary shunt valve is connected to the inlet of the bubble generating plate through an air connection pipe.

[0007] In an embodiment of the present application, a pressure regulating controller is arranged in the pressure reducing valve, which is used to automatically adjust the opening degree of the valve when the inlet air pressure exceeds a set value, adjust the air flow through the pressure reducing valve, and keep the outlet air pressure at a set value at all times, so as to ensure 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 an embodiment of the present application, the air flow monitoring device comprises an air flow sensor and a flow controller, both of which are connected to an industrial computer through wires 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 computer, and the flow controller is used to real-time regulate the opening degree of the built-in valve according to the control information fed back by the industrial computer, so as to ensure stable air flow delivered to the bubble generating plate.

[0009] In an embodiment of the present application, the industrial computer 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 a target value set in advance; if the air flow data is lower than the target value set in advance, the industrial computer sends control information to the flow controller, and the flow controller controls the opening degree of the built-in valve to increase according to the control information; if the air flow data is higher than the target value set in advance, the industrial computer sends control information to the flow controller, and the flow controller controls the opening degree of the built-in valve to decrease according to the control information.

[0010] In an embodiment of the present application, the primary shunt valve is a three-way valve, the inlet of the three-way valve is connected to the output of the air flow monitoring device through a gas connection pipe, and the two outlets of the three-way valve are both connected to the inlets of the secondary shunt valves through gas connection pipes.

[0011] In an embodiment of the present application, the secondary shunt valve comprises two shunt valves connected to the outlets of the three-way valve through gas connection pipes, the shunt valve comprises a fixed pipe and a plurality of control valves mounted on the fixed pipe, the inlet of the fixed pipe is connected to the outlet of the three-way valve through a gas connection 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 a gas connection pipe.

[0012] In an embodiment of the present application, the plurality of control valves are divided into two rows and symmetrically mounted on the fixed pipe, and the plurality of control valves in each row are uniformly spaced along the length direction of the fixed pipe.

[0013] In an embodiment of the present application, the bubble generating plate comprises two bubble generating assemblies connected to each other and connected to the shunt valve through a gas connection pipe, the bubble generating assembly comprises a plurality of bubble bars connected in parallel, the inlet of the bubble bar is connected to the outlet of the control valve through a gas connection pipe, and the surface of the bubble bar is provided with a plurality of micro-nano gas outlets for generating a uniform bubble field.

[0014] As described above, the present application is a large-volume uniform bubble generating device capable of achieving high liquid bubble occupancy, which has the following beneficial effects: 1. High-precision bubble control system: the present application realizes precise control of gas flow and pressure through the combination of a pressure reducing valve and a high-precision air flow monitoring device; traditional bubble generating devices are difficult to accurately control the generation amount and distribution of bubbles in a large-volume water body, while the present application ensures the consistency of bubble size and quantity generated by each bubble bar through detailed 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 bars of the present application are supplied with air through two shunt valves with one inlet and 24 outlets, and each bubble bar is provided with a plurality of micro-holes to realize uniform bubble generation in a large-area 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-area water body. 3. Simple structure and high efficiency: compared with existing complex gas-liquid mixing systems, the present application adopts simple pipeline connection and bubble bar design, uses a single air compressor for air supply, significantly simplifies the system structure, and reduces the cost of equipment manufacturing and maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 Figure 1 shows the overall structure of the large-volume uniform bubble generator disclosed in the embodiments of the present application, which can achieve high-occupancy liquid bubbles;

[0016] Fig. 2 Figure 2 shows the overall structure of the shunt valve in the large-volume uniform bubble generator disclosed in the embodiments of the present application, which can achieve high-occupancy liquid bubbles;

[0017] Fig. 3 Figure 3 shows the overall structure of the bubble generation plate in the large-volume uniform bubble generator disclosed in the embodiments of the present application, which can achieve high-occupancy liquid bubbles.

[0018] Element number explanation

[0019] 1, air compressor; 2, pressure reducing valve; 3, air flow monitoring device; 4, primary shunt valve; 5, secondary shunt valve; 51, shunt valve; 511, fixed pipe; 512, control valve; 6, bubble generation plate; 61, bubble generation assembly; 611, bubble strip; 7, gas connection pipe; 8, industrial control computer. DETAILED DESCRIPTION

[0020] The following specific embodiments illustrate the embodiments of the present application, and those skilled in the art can easily understand other advantages and effects of the present application from the disclosure. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0021] Please refer to Figs. 1 to 3 The present application provides a large-volume uniform bubble generator that can achieve high-occupancy liquid bubbles. It should be noted that the occupancy of bubbles in water can be adjusted by adjusting the gas flow. In the present application, the gas flow range through the bubble strip 611 can be large (currently 0-300 L / min is used, and it is expected to reach at least 500 L / min), so a high-occupancy bubble field can be generated. The large-volume uniform bubble generator includes an air compressor 1, a pressure reducing valve 2, an air flow monitoring device 3, a primary shunt valve 4, a secondary shunt valve 5, and a bubble generation plate 6. The air compressor 1 is used to provide a stable gas source and continuously supply compressed air to the bubble generation 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 gas pressure and avoid excessive gas pressure affecting the bubble generation effect. It should be noted that the pressure reducing valve 2 is provided with a pressure adjusting controller. When the inlet gas pressure exceeds the set value, the pressure adjusting controller automatically adjusts the opening of the valve to adjust the gas flow through the pressure reducing valve 2, so that the outlet gas pressure always remains at the set value, ensuring stable gas pressure to the bubble generation plate 6. In addition, the required gas pressure value can 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 computer 8. It should be noted that the air flow sensor and the flow controller are connected with the industrial computer 8 through wires or 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 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 computer 8, so as to ensure stable air flow to the bubble generating plate 6. Therefore, the dynamic compensation control of the flow controller combined with the computer can adjust the air flow in the pipeline to the target value according to the user's demand and application scene, so as to ensure that the occupancy rate and distribution of the bubbles in the water are more accurate and stable.

[0024] The industrial computer 8 is used for real-time monitoring and operation of the whole system, and combines sensor feedback to ensure accurate control of parameters such as air pressure and flow. It should be noted that the industrial computer 8 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 the target value set in advance. If the air flow data is lower than the target value set in advance, the industrial computer 8 increases the opening of the built-in valve through the flow controller. If the air flow data is higher than the target value set in advance, the industrial computer 8 reduces the opening of the built-in valve through the flow controller, so as to ensure that the gas pressure and flow entering the bubble generating plate 6 remain stable. In this embodiment, the air flow monitoring device 3 uses an Austson AS200 gas mass flow controller. Through the upper computer control program matched with the sensor, the target air flow (standard atmospheric pressure, room temperature condition) can be input. The AS200 gas flow controller also has the ability to measure air flow and transmit data to the upper computer or additional acquisition equipment in the form of voltage. The control program of the upper 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 upper computer and the AS200 gas flow controller, if the flow through the AS200 gas flow controller is lower than the set target value, the upper computer increases the opening of the valve through the AS200 gas flow controller. If it is higher than the target value, the upper computer reduces the opening of the valve through the AS200 gas flow controller, so as to ensure that the gas pressure and flow entering the bubble generating plate 6 remain stable, thereby ensuring the accuracy and stability of bubble generation, and avoiding the situation that the flow is large or small.

[0025] The primary shunt valve 4 is used to split the air flow and control the air flow into different pipes. It is to be noted that the primary shunt valve 4 is a three-way valve, the inlet of the three-way valve is connected with 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 both connected with the inlets of the secondary shunt valves 5 through the gas connecting pipes 7.

[0026] The secondary shunt valve 5 is also used to split the air flow and control the air flow into different bubble strips 611. It is to be noted that the secondary shunt valve 5 includes two shunt valves 51 connected with the outlets of the three-way valve through the gas connecting pipes 7. The secondary shunt valve 5 in the embodiment is a shunt valve 51 with 24 small valves arranged in two rows. Each control valve 512 is connected with a bubble strip 611 through the gas connecting pipe 7. By opening or closing a control valve 512, the bubble strip 611 at different positions can generate bubbles to adapt to different scene requirements. The secondary shunt valve 5 further accurately distributes the air 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 are consistent, the size parameters of the bubble strips 611 are consistent, and a plurality of bubble strips 611 are in the same plane, the pressure and flow of the gas split to each bubble strip 611 are equal, thereby ensuring that the air flow of each bubble strip 611 is uniform and avoiding the problem of local bubble density unevenness. For details, please refer to Fig. 2 .

[0027] The bubble generating plate 6 is used to generate a uniform bubble field. It is to be noted that the bubble generating plate 6 includes two bubble generating assemblies 61 connected with each other and connected with the shunt valve through the gas connecting pipes 7. The bubble generating assembly 61 includes a plurality of parallel bubble strips 611. The inlets of the bubble strips 611 are connected with the outlets of the control valves 52 through the gas connecting pipes 7. The surface of the bubble strip 611 is provided with a plurality of micro-nano level gas outlets. Each bubble generating assembly 61 in the embodiment includes 24 bubble strips 611. Therefore, the bubble generating plate 6 is composed of 48 bubble strips 611 arranged in two rows. The micro-holes provided on the bubble strips 611 are micro-nano level. Air forms bubbles in water through the micro-holes to generate a uniform bubble field. By making bubble strips 611 with different scale micro-holes, the size of the bubble diameter can be adjusted. For details, please refer to Fig. 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 connection pipe 7, the outlet of the pressure reducing valve 2 is connected to the input end of the air flow monitoring device 3 through the gas connection pipe 7, and the output end of the air flow monitoring device 3 is connected to the first shunt valve 4 and the second shunt valve 5 through the gas connection pipe 7, so that the air is evenly distributed to the 48 bubble strips 611, each of which is arranged in the water body to be treated and generates a uniform bubble field through the small holes on the surface thereof; and the air flow monitoring device 3 is connected to the industrial computer 8, so as to facilitate the accurate control of the flow.

[0029] In summary, the present application has the following advantages: 1. High-precision bubble control system: the combination of the pressure reducing valve 2 and the high-precision air flow monitoring device 3 realizes the precise control of the gas flow and pressure; the traditional bubble generating device is difficult to accurately control the generation amount and distribution of bubbles in a large volume of water, while the present application ensures the consistency of the size and quantity of the bubbles generated by each bubble strip 611 through detailed 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 application are supplied with air through the shunt valve 51 with 24 outlets, and each bubble strip 611 is provided with a plurality of micro-holes, so as to realize the uniform generation of bubbles in a large area of water; such 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.

[0030] 3. Simple structure and high efficiency: compared with the existing complex gas-liquid mixing system, the present application adopts a simple pipeline connection and bubble strip 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 the industrial computer 8 and the sensor, the present application can intelligently monitor and automatically adjust the system, so as to ensure that various parameters (such as air pressure and flow) are always maintained within the set range, thereby improving the reliability and stability of the equipment operation; through the real-time monitoring and adjustment of the industrial computer 8, the present application ensures the stability of the system in long-term operation, avoids equipment failure caused by air pressure fluctuation or uneven flow, and is suitable for long-term continuous operation. 5. Suitable for precise simulation of marine aeration environment: the present application is particularly suitable for simulating the aeration environment in the ocean, and through precise control of the size and distribution of bubbles, ideal simulation conditions can be provided for scientific research experiments or marine engineering.

[0031] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not intended to limit the present application. Any equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical concept disclosed by the present application shall still be covered by the claims of the present application.

Claims

1. A large-volume uniform bubble generating device capable of achieving a high bubble occupancy rate in liquid, characterized by: The invention comprises an air compressor (1) for providing a stable air source, a pressure reducing valve (2) for adjusting the pressure of the gas outputted by the air compressor (1), an air flow monitoring device (3) for measuring the air flow entering each bubble strip (611) in a bubble generating plate (6) in real time and dynamically adjusting the air flow entering each bubble strip (611) in the bubble generating plate (6), a primary branch valve (4) and a secondary branch valve (5) for diverting air, and a bubble generating plate (6) for generating a uniform 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); The air flow monitoring device (3) includes 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 air flow delivered to the bubble generating plate (6).

2. A large-volume uniform bubble generating device capable of achieving a high bubble occupancy rate in liquid according to claim 1, characterized in that: The pressure reducing valve (2) is provided with a pressure regulating controller, which is used to automatically adjust the valve opening when the inlet air pressure exceeds the set value, and regulate 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. The large-volume uniform bubble generating device capable of achieving a high bubble occupancy rate in liquid according to claim 1, 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.

4. The large-volume uniform bubble generating device capable of achieving a high bubble occupancy rate in liquid 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).

5. The large-volume uniform bubble generating device capable of achieving a high bubble occupancy rate in liquid according to claim 4, characterized in that: The secondary branch valve (5) includes two diverter valves (51) connected to the outlet of the three-way valve through a gas connecting pipe (7), and the diverter valve (51) includes a fixed pipe (511) and a plurality of control valves (512) installed on the fixed pipe (511). The inlet of the fixed pipe (511) is connected to the outlet of the three-way valve through the 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) through the gas connecting pipe (7).

6. A large-volume uniform bubble generating device capable of achieving a high bubble occupancy rate in liquid according to claim 5, 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). 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).

7. The large-volume uniform bubble generating device capable of achieving a high bubble occupancy rate in liquid according to claim 5, 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 (51) 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 strips (611) is connected to the outlet of the control valve (512) via a gas connecting pipe (7). The surface of the bubble strips (611) is provided with a plurality of micro-nano-scale air outlet holes for generating a uniform bubble field.

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