A suspended underwater micro-nano bubble generator
By using a suspended underwater micro-nano bubble generator, which combines a multi-stage water pump and a high-speed rotary nanobubble pump with an advanced control system, the problems of uneven bubble size and high energy consumption are solved, and efficient and stable micro-nano bubble generation is achieved. This technology is suitable for water treatment, environmental protection and agricultural irrigation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO TIANYUN ECOLOGICAL TREATMENT ENG CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-06-26
AI Technical Summary
Existing micro-nano bubble generators suffer from problems such as uneven bubble size, low dissolution efficiency, and high energy consumption, which limit their application in water treatment, environmental protection, and agricultural irrigation.
A suspended underwater micro/nano bubble generator was designed, employing a multi-stage water pump and a high-speed rotary nanobubble pump, combined with an advanced control system, to achieve precise control of fluid velocity and pressure. Equipped with an intelligent control system and external protection mechanism, it ensures that the bubble particle size is small and the distribution is uniform.
It increases the contact area and reaction rate between gas and liquid, reduces energy consumption, achieves efficient and stable generation of micro- and nano-bubbles, adapts to different experimental needs, and has multiple operating modes to ensure safe underwater operation of the device.
Smart Images
Figure CN224404850U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bubble generator technology, specifically a suspended underwater micro-nano bubble generator. Background Technology
[0002] Micro-nano bubble generators refer to tiny bubbles with diameters ranging from micrometers to nanometers. These bubbles have significant characteristics such as large specific surface area, slow rising speed, high dissolution efficiency, and good mass transfer effect. As a cutting-edge scientific technology, micro-nano bubble generator technology is gradually penetrating into multiple fields such as water treatment, environmental protection, agricultural irrigation, and medical health, demonstrating its unique advantages and unlimited potential. Based on these characteristics, micro-nano bubble generators achieve precise control of the bubble generation process through precise mechanical structures and advanced control technology.
[0003] Currently, there are various micro-nano bubble generators on the market, among which the more common ones include swirling liquid flow type, micropore type, and devices based on the decompression release principle of pressurized containers. These devices have achieved certain results in bubble generation, but there are still many shortcomings. Due to the limitations of equipment structure and control technology, the particle size of micro-nano bubbles generated by existing technologies is often unevenly distributed, which affects the dissolution efficiency and mass transfer effect of bubbles. This limits the application effect of micro-nano bubble technology in certain fields to a certain extent. The process of generating bubbles often requires a lot of energy, especially in key links such as pressurization, decompression and gas dissolution, which leads to high equipment operating costs and is not conducive to large-scale promotion and application. Utility Model Content
[0004] The purpose of this invention is to provide a suspended underwater micro / nano bubble generator to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a suspended underwater micro-nano bubble generator, including a main unit box, an adjustable support mechanism on the surface of the main unit box, a bubble generating mechanism on the surface of the main unit box, and an external protective mechanism on the surface of the main unit box;
[0006] The bubble generating mechanism includes a multi-stage water pump, which is installed at the front end of the main unit housing. An inlet pipe is installed at the top right end of the multi-stage water pump, and a one-way inlet valve is installed at the outer end of the inlet pipe. A dissolved air chamber is installed at the rear end of the main unit housing, and a connecting pump is installed at the top left end of the dissolved air chamber. A connecting pipe is installed between the connecting pump and the multi-stage water pump. High-speed rotary cutting nanobubble pumps are installed on the left and right sides of the rear end of the main unit housing. Transport pumps are installed at the top left and right ends of the dissolved air chamber, and a transport pipe is installed between the transport pumps and the high-speed rotary cutting nanobubble pumps. A first sealing sleeve is installed at the end of the transport pipe near the high-speed rotary cutting nanobubble pump. A delivery pipe is installed at the outer end of the high-speed rotary cutting nanobubble pump, and a second sealing sleeve is installed at the end of the delivery pipe near the high-speed rotary cutting nanobubble pump. Both the first and second sealing sleeves have internal connecting threads. A first connecting seat is fixedly connected to the top outer end of the high-speed rotary cutting nanobubble pump, and a first threaded connecting post is fixedly connected to the top of the first connecting seat. A second connecting seat is fixedly connected to the outer end of the high-speed rotary cutting nanobubble pump. A second threaded connecting post is fixedly connected to the outer end of the connecting seat. A main mounting seat is provided at the outer end of the delivery pipe. A delivery valve is installed at the inner end of the main mounting seat. An aeration head is installed on the top of the main mounting seat. In the process of generating micro-nano bubbles, the regulation of fluid velocity and pressure is crucial. This device introduces an advanced control system, which can achieve precise control of liquid injection volume, flow rate, and pressure, thereby ensuring the efficient and stable generation of micro-nano bubbles. The generation of bubbles is controlled by a multi-stage water pump and two sets of high-speed rotary nanobubble pumps. Thanks to the optimized structural design and advanced control system, this device can generate micro-nano bubbles efficiently and stably. The bubble particle size is small and the distribution is uniform, which greatly improves the contact area and reaction rate between gas and liquid. This device is equipped with an intelligent control system. A control panel, flow meter, and pressure gauge are mounted on the surface of the control box. The entire operation interface is simple and easy to understand. Users can easily set and adjust the operating parameters of the device, such as bubble generation rate and oxygen flow rate. In addition, the device also has multiple operating modes, such as continuous operation and timed operation, to meet the needs of different experiments.
[0007] Preferably, the high-speed rotary cutting nanobubble pump is provided with two sets, the first sealing sleeve is threadedly connected to the first threaded connecting post through an internal connecting thread, the second sealing sleeve is threadedly connected to the second threaded connecting post through an internal connecting thread, and the delivery valve is installed at the outer end of the delivery pipe.
[0008] Preferably, the adjustable support mechanism includes a first support column, a base is fixedly connected to the four corners of the bottom of the main unit, the first support column is fixedly connected to the bottom of the base, a second support column is sleeved on the outer surface of the first support column, limit holes are opened on the surfaces of the first support column and the limit holes are equipped with anti-corrosion limit bolts, and a base is fixedly connected to the bottom of the second support column.
[0009] Preferably, the external protective mechanism includes a high-strength protective shell. The high-strength protective shell is installed around the perimeter of the main unit chassis. A sealing gasket is installed between the high-strength protective shell and the main unit chassis. A mounting base is installed on the surface of the main unit chassis, a connecting plate is installed on the surface of the mounting base, and a protective fence is installed on the surface of the connecting plate. During use, the high-strength protective shell protects the main unit chassis and its internal components, preventing water from entering the main unit chassis and damaging the devices. Simultaneously, the sealing gasket enhances its sealing performance, further ensuring the normal operation of the internal components of the main unit chassis. The protective fence installed on the outer surface of the main unit chassis protects the main unit chassis from damage, ensuring that any impact from an object will not directly affect the high-strength protective shell, thereby ensuring the safe and normal operation of the device underwater.
[0010] Preferably, mounting bases are installed on the top and bottom of the front and back of the main unit chassis, and mounting bases are installed on the front and rear ends of the left and right sides of the main unit chassis.
[0011] Preferably, lifting rings are fixedly connected to the four corners of the top of the main unit chassis, a float mounting lifting ring is fixedly connected to the center of the top of the main unit chassis, a float is installed on the top of the float mounting lifting ring, a control box is provided on the top of the front of the main unit chassis, a connecting line is installed between the control box and the main unit chassis, an external pressure monitoring sensor is installed on the left side of the bottom of the main unit chassis, and an internal pressure monitoring sensor is installed on the left side of the rear end of the main unit chassis.
[0012] Compared with the prior art, this utility model provides a suspended underwater micro / nano bubble generator, which has the following beneficial effects:
[0013] This suspended underwater micro / nano bubble generator is equipped with a bubble generation mechanism. During the generation of micro / nano bubbles, the control of fluid velocity and pressure is crucial. This device incorporates an advanced control system capable of precisely controlling the liquid injection volume, flow rate, and pressure, thereby ensuring the efficient and stable generation of micro / nano bubbles. Bubble generation is controlled by a multi-stage water pump and two sets of high-speed rotary nanobubble pumps. Thanks to its optimized structural design and advanced control system, this device can efficiently and stably generate micro / nano bubbles with small particle size and uniform distribution, greatly improving the gas-liquid contact area and reaction rate. The device is equipped with an intelligent control system, with a control panel, flow meter, and pressure gauge mounted on the surface of the control box. The entire operating interface is simple and easy to understand, allowing users to easily set and adjust the device's operating parameters, such as bubble generation rate and oxygen flow rate. Furthermore, the device has multiple operating modes, such as continuous operation and timed operation, to meet the needs of different experiments.
[0014] This suspended underwater micro-nano bubble generator is equipped with an external protective mechanism. During use, the high-strength protective shell protects the main unit and its internal components, preventing water from entering the main unit and damaging the devices. At the same time, the sealing gasket enhances its sealing performance, further ensuring the normal operation of the internal components. The protective fence installed on the outer surface of the main unit protects the main unit from damage and ensures that objects do not directly impact the high-strength protective shell, thus ensuring the safe and normal operation of the device underwater. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the internal structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the bubble generating mechanism of this utility model;
[0019] Figure 4 This is a schematic diagram of the aeration head structure of this utility model;
[0020] Figure 5 This is a schematic diagram of the high-speed rotary cutting nanobubble pump structure of this utility model;
[0021] Figure 6 This is a schematic diagram of the external protective mechanism of the present invention.
[0022] In the diagram: 1. Main unit chassis; 2. Base; 3. Lifting ring; 4. Float mounting lifting ring; 5. Float; 6. Control box; 61. Connecting cable; 62. External pressure monitoring sensor; 63. Internal pressure monitoring sensor; 7. Adjustable support mechanism; 71. First support column; 72. Second support column; 73. Limiting hole; 74. Corrosion-resistant limiting bolt; 75. Base; 8. Bubble generating mechanism; 81. Multistage water pump; 82. Inlet pipe; 83. One-way inlet valve; 84. Dissolved air tank; 85. Connecting pipe; 86. Connecting pump; 87. High-speed 88. Rotary nanobubble pump; 89. Transport pump; 89. Transport pipeline; 891. First sealing sleeve; 892. Second sealing sleeve; 893. Internal connecting thread; 801. First connecting seat; 8011. First threaded connecting post; 802. Second connecting seat; 8021. Second threaded connecting post; 803. Delivery pipe; 804. Delivery valve; 805. Main mounting seat; 806. Aeration head; 9. External protection mechanism; 91. High-strength protective shell; 92. Sealing gasket; 93. Mounting seat; 94. Connecting plate; 95. Protective fence. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0025] This utility model provides the following technical solution: Example 1
[0026] Please see Figure 1-6 A suspended underwater micro-nano bubble generator includes a main unit 1, an adjustable support mechanism 7 on the surface of the main unit 1, a bubble generating mechanism 8 on the surface of the main unit 1, and an external protection mechanism 9 on the surface of the main unit 1.
[0027] The bubble generating mechanism 8 includes a multi-stage water pump 81, which is installed at the front end inside the main unit 1. A water inlet pipe 82 is installed at the top right end of the multi-stage water pump 81, and a one-way water inlet valve 83 is installed at the outer end of the water inlet pipe 82. A dissolved air chamber 84 is installed at the rear end inside the main unit 1. A connecting pump 86 is installed at the top left end of the dissolved air chamber 84, and a connecting pipe 85 is installed between the connecting pump 86 and the multi-stage water pump 81. High-speed rotary cutting nano bubble pumps 87 are installed on the left and right sides of the rear end inside the main unit 1. Transport pumps 88 are installed at the top left and right ends of the dissolved air chamber 84, and a transport pipe is installed between the transport pumps 88 and the high-speed rotary cutting nano bubble pumps 87. Pipe 89, a first sealing sleeve 891 is installed at one end of the transport pipe 89 near the high-speed rotary cutting nano bubble pump 87. A delivery pipe 803 is installed at the outer end of the high-speed rotary cutting nano bubble pump 87. A second sealing sleeve 892 is installed at one end of the delivery pipe 803 near the high-speed rotary cutting nano bubble pump 87. Both the first sealing sleeve 891 and the second sealing sleeve 892 have internal connecting threads 893. A first connecting seat 801 is fixedly connected to the top outer end of the high-speed rotary cutting nano bubble pump 87. A first threaded connecting post 801 is fixedly connected to the top of the first connecting seat 801. The outer end of the high-speed rotary cutting nano bubble pump 87 is fixedly connected to... A second connecting seat 802 is connected, and a second threaded connecting post 8021 is fixedly connected to the outer end of the second connecting seat 802. A main mounting seat 805 is provided at the outer end of the delivery pipe 803, and a delivery valve 804 is installed at the inner end of the main mounting seat 805. An aeration head 806 is installed on the top of the main mounting seat 805. In the process of generating micro-nano bubbles, the control of fluid velocity and pressure is crucial. This device introduces an advanced control system that can achieve precise control of liquid injection volume, flow rate, and pressure, thereby ensuring the efficient and stable generation of micro-nano bubbles. This is achieved through a multi-stage water pump 81 and two sets of high-speed rotary nanobubble pumps 87. The generation of bubbles is controlled thanks to the optimized structural design and advanced control system. This device can generate micro- and nano-bubbles efficiently and stably. The bubbles are small in size and uniformly distributed, which greatly improves the contact area and reaction rate between the gas and the liquid. The device is equipped with an intelligent control system. The control panel, flow meter and pressure gauge are mounted on the surface of the control box 6. The entire operation interface is simple and easy to understand. Users can easily set and adjust the operating parameters of the device, such as bubble generation rate and oxygen flow rate. In addition, the device has multiple operating modes, such as continuous operation and timed operation, to meet the needs of different experiments.
[0028] The inner connecting thread 893 is threadedly connected to the first threaded connecting post 8011, the second sealing sleeve 892 is threadedly connected to the second threaded connecting post 8021 through the inner connecting thread 893, and the delivery valve 804 is installed at the outer end of the delivery pipe 803. Example 2
[0029] Please see Figure 1-6Furthermore, based on Embodiment 1, the adjustable support mechanism 7 includes a first support column 71, a base 2 fixedly connected to the four corners of the bottom of the main unit box 1, the first support column 71 fixedly connected to the bottom of the base 2, a second support column 72 sleeved on the outer surface of the first support column 71, and limit holes 73 opened on the surfaces of the first support column 71 and the second support column 72, with anti-corrosion limit bolts 74 installed inside the limit holes 73, and a base 75 fixedly connected to the bottom of the second support column 72.
[0030] The external protection mechanism 9 includes a high-strength protective shell 91. The high-strength protective shell 91 is installed on all four sides of the surface of the main unit box 1. A sealing gasket 92 is installed between the high-strength protective shell 91 and the main unit box 1. A mounting base 93 is installed on the surface of the main unit box 1. A connecting plate 94 is installed on the surface of the mounting base 93. A protective fence 95 is installed on the surface of the connecting plate 94. During use, the high-strength protective shell 91 can protect the main unit box 1 and its internal components, preventing water from entering the main unit box 1 and damaging the components. At the same time, the sealing gasket 92 enhances its sealing performance, further ensuring the normal operation of the internal components of the main unit box 1. The protective fence 95 installed on the outer surface of the main unit box 1 can protect the main unit box 1 from damage and ensure that when an object impacts it, it will not directly affect the high-strength protective shell 91, thereby ensuring the safe and normal operation of the device underwater.
[0031] Mounting bases 93 are installed on the top and bottom of the front and back of the main unit 1, and mounting bases 93 are installed on the front and back of the left and right sides of the main unit 1.
[0032] The main unit 1 has four fixed lifting rings 3 at the top corners, a float mounting ring 4 at the top center of the main unit 1, a float 5 on the top of the float mounting ring 4, a control box 6 at the top front of the main unit 1, a connecting cable 61 between the control box 6 and the main unit 1, an external pressure monitoring sensor 62 at the bottom left of the main unit 1, and an internal pressure monitoring sensor 63 at the rear left of the main unit 1.
[0033] In actual operation, when this device is in use, it is controlled by the control box 6, and the pressure of the device is monitored by the external pressure monitoring sensor 62 and the internal pressure monitoring sensor 63 to prevent damage. Water is introduced through the water inlet pipe 82 and the one-way water inlet valve 83, and the gas and water are mixed and then introduced into the dissolved gas tank 84. Then, the gas is dissolved into the water by the high-speed rotary cutting nanobubble pump 87 using a high-speed rotary cutting method. Subsequently, the dissolved gas is quickly and efficiently released by the gas release device to form micro-nano bubble water, which is jetted into the water at extremely high speed through the aeration head 806. The jet produces a mechanical ionization effect on the water, breaking the colloidal connection of the pollutant clusters and breaking the chemical bonds and electro-adsorption binding between the pollutants and water. Simultaneously, the injected active oxygen, oxygen ions, hydrogen ions and hydroxide ions generated by ionization, hydroxyl radicals, etc., oxidize and decompose pollutants, achieving water purification. The solubility rate of micro-nano bubbles in water exceeds 85%, and the dissolved oxygen concentration can reach above saturation concentration. Moreover, micro-nano bubbles remain in the water for a long time in the form of bubbles, and can continuously replenish active oxygen in the water as dissolved oxygen is consumed. This provides sufficient active oxygen and strong oxidizing ion groups for the microorganisms that purify wastewater, and ensures sufficient reaction time for active oxygen. The clean water restored after treatment by the micro-nano bubble generator has a minimum dissolved oxygen content of 4 ppm. The water's self-purification capacity is far higher than the self-purification capacity under natural conditions.
[0034] In the process of generating micro- and nano-bubbles, the regulation of fluid velocity and pressure is crucial. This device introduces an advanced control system that enables precise control of liquid injection volume, flow rate, and pressure, thereby ensuring the efficient and stable generation of micro- and nano-bubbles. The generation of bubbles is controlled by a multi-stage water pump 81 and two sets of high-speed rotary nano-bubble pumps 87. Thanks to the optimized structural design and advanced control system, this device can generate micro- and nano-bubbles efficiently and stably. The bubble particle size is small and the distribution is uniform, which greatly improves the contact area and reaction rate between gas and liquid. This device is equipped with an intelligent control system. The control panel, flow meter, and pressure gauge are mounted on the surface of the control box 6. The entire operation interface is simple and easy to understand. Users can easily set and adjust the operating parameters of the device, such as bubble generation rate and oxygen flow rate. In addition, the device also has multiple operating modes, such as continuous operation and timed operation, to meet the needs of different experiments.
[0035] The system supports precise setting and automatic adjustment of bubble generation parameters (such as gas flow rate, liquid flow rate, working time, etc.). Users can remotely control the operating status of the device through a touch screen or computer software and make real-time adjustments according to experimental needs.
[0036] Considering the potential corrosion issues that micro-nano bubble generators may face during long-term use, this device is made of high-quality stainless steel, which is completely resistant to various corrosive waters, ensuring good stability and durability under various experimental conditions. To ensure the safety and stability of the experimental process, this device is made of high-quality materials, with a compact structure and strong corrosion resistance. Meanwhile, multiple safety mechanisms such as overpressure protection and overheat protection are provided to prevent safety accidents caused by equipment failure or improper operation. During use, the high-strength protective shell 91 can protect the main unit 1 and its internal components, preventing water from entering the main unit 1 and damaging the components. At the same time, the sealing gasket 92 strengthens its sealing performance, further ensuring the normal operation of the internal components of the main unit 1. The protective fence 95 installed on the outer surface of the main unit 1 can protect the main unit 1 from damage and ensure that objects will not directly impact the high-strength protective shell 91, thereby ensuring the safe and normal operation of the device underwater. During use, the height of the device can also be adjusted by the adjustable support mechanism 7. By installing the anti-corrosion limit bolt 74 inside different limit holes 73, the overall height of the first support column 71 and the second support column 72 can be changed to meet different working heights. The float 5 set on the top of the main unit 1 can ensure that the staff can quickly locate the position of the device in the water area, which is convenient for recovery and maintenance operations.
[0037] Because this device can generate high-quality, high-concentration micro- and nano-bubbles, it has broad application prospects in water purification, chemical reaction catalysis, and biomedical experiments. Especially in environmental remediation, micro- and nano-bubbles can accelerate the oxidative decomposition of pollutants, potentially providing new solutions for water remediation and wastewater treatment.
[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. A suspended underwater micro / nano bubble generator, comprising a main unit (1), characterized in that: An adjustable support mechanism (7) is provided on the surface of the main unit (1), a bubble generating mechanism (8) is provided on the surface of the main unit (1), and an external protection mechanism (9) is provided on the surface of the main unit (1). The bubble generating mechanism (8) includes a multi-stage water pump (81), which is installed at the front end inside the main unit (1). A water inlet pipe (82) is installed at the top right end of the multi-stage water pump (81), and a one-way water inlet valve (83) is installed at the outer end of the water inlet pipe (82). A dissolved gas tank (84) is installed at the rear end inside the main unit (1). A connecting pump (86) is installed at the top left end of the dissolved gas tank (84). A connecting pipe (85) is installed between the connecting pump (86) and the multi-stage water pump (81). High-speed rotary nanobubble pumps (87) are installed on the left and right sides of the rear end inside the main unit (1). Transport pumps (88) are installed at the top left and right ends of the dissolved gas tank (84). A transport pipe (89) is installed between the transport pump (88) and the high-speed rotary nanobubble pump (87). A first sealing sleeve (891) is installed at the end of the transport pipe (89) closest to the high-speed rotary nanobubble pump (87). A delivery pipe (803) is installed at the outer end of the rotary cutting nano bubble pump (87). A second sealing sleeve (892) is installed at the end of the delivery pipe (803) near the high-speed rotary cutting nano bubble pump (87). The first sealing sleeve (891) and the second sealing sleeve (892) are both provided with internal connecting threads (893). A first connecting seat (801) is fixedly connected to the outer end of the top of the high-speed rotary cutting nano bubble pump (87). A first threaded connecting post (8011) is fixedly connected to the top of the first connecting seat (801). A second connecting seat (802) is fixedly connected to the outer end of the high-speed rotary cutting nano bubble pump (87). A second threaded connecting post (8021) is fixedly connected to the outer end of the second connecting seat (802). A main mounting seat (805) is provided at the outer end of the delivery pipe (803). A delivery valve (804) is installed at the inner end of the main mounting seat (805). An aeration head (806) is installed at the top of the main mounting seat (805).
2. The suspended underwater micro-nano bubble generator according to claim 1, characterized in that: The high-speed rotary cutting nano bubble pump (87) is provided with two sets. The first sealing sleeve (891) is threadedly connected to the first threaded connecting post (8011) through the internal connecting thread (893). The second sealing sleeve (892) is threadedly connected to the second threaded connecting post (8021) through the internal connecting thread (893). The delivery valve (804) is installed at the outer end of the delivery pipe (803).
3. The suspended underwater micro-nano bubble generator according to claim 1, wherein: The adjustable support mechanism (7) includes a first support column (71), and a base (2) is fixedly connected to the four corners of the bottom of the main unit (1). The first support column (71) is fixedly connected to the bottom of the base (2). A second support column (72) is sleeved on the outer surface of the first support column (71). Limiting holes (73) are opened on the surfaces of the first support column (71) and the second support column (72). Anti-corrosion limiting bolts (74) are installed inside the limiting holes (73). A base (75) is fixedly connected to the bottom of the second support column (72).
4. The suspended underwater micro-nano bubble generator according to claim 1, wherein: The external protective mechanism (9) includes a high-strength protective shell (91), and the high-strength protective shell (91) is installed on all four sides of the surface of the main unit (1). A sealing gasket (92) is installed between the high-strength protective shell (91) and the main unit (1). A mounting base (93) is installed on the surface of the main unit (1). A connecting plate (94) is installed on the surface of the mounting base (93). A protective fence (95) is installed on the surface of the connecting plate (94).
5. The suspended underwater micro-nano bubble generator according to claim 4, characterized in that: Mounting bases (93) are installed on the top and bottom of the front and back sides of the main unit (1), and mounting bases (93) are installed on the front and back ends of the left and right sides of the main unit (1).
6. The suspended underwater micro-nano bubble generator according to claim 1, wherein: The main unit (1) has four fixed lifting rings (3) at the top corners, a float mounting ring (4) at the top center of the main unit (1), a float (5) at the top of the float mounting ring (4), a control box (6) at the top front of the main unit (1), a connecting line (61) between the control box (6) and the main unit (1), an external pressure monitoring sensor (62) at the bottom left of the main unit (1), and an internal pressure monitoring sensor (63) at the rear left of the main unit (1).