Nanobubble-based capsule vibration isolation system

Abstract

The application provides a nano-bubble-based capsule vibration isolation system, and belongs to the field of vibration isolation devices.The nano-bubble-based capsule vibration isolation system comprises a vibration isolation capsule, the inside of the vibration isolation capsule is filled with buffer liquid and solid particles, at least part of the surfaces of the solid particles are attached with nano-bubbles, and bubble-attached particles are formed; wherein the bubble-attached particles are configured to collide under the action of elastic waves of a vibration source, so that the nano-bubbles on the surfaces of the bubble-attached particles are broken, the bubble-attached particles generate internal energy based on the friction of the collision and the breaking of the bubbles to increase the energy dissipation of the elastic waves, so as to perform vibration isolation treatment on the elastic waves of the vibration source; and a preparation device is configured to prepare nano-bubbles based on a target generation rate under the control of a far-infrared control signal, and input the nano-bubbles into the inside of the vibration isolation capsule through the lower surface of the vibration isolation capsule, so as to change the concentration of the bubble-attached particles in the inside of the vibration isolation capsule.

Description

Technical Field

[0001] This invention relates to the field of vibration isolation devices, and more specifically, to a capsule vibration isolation system based on nanobubbles. Background Technology

[0002] In the field of building engineering, traditional vibration isolation methods mostly employ open vibration isolation trenches and trenches filled with different materials. These methods rely on gas or liquid filling, and suffer from problems such as a single vibration isolation mechanism, poor vibration isolation effect, insufficient vibration isolation capacity of the filling medium, and inability to adjust in real time according to changes in the vibration source.

[0003] Therefore, there is an urgent need to propose a vibration isolation method that can achieve long-term stable vibration isolation and is easy to adjust in real time. Summary of the Invention

[0004] In view of this, the present invention provides a capsule vibration isolation system based on nanobubbles.

[0005] One aspect of the present invention provides a nanobubble-based capsule vibration isolation system, comprising: a vibration isolation capsule, the interior of which is filled with a buffer solution and solid particles, at least a portion of which have nanobubbles attached to their surfaces to form bubble-attached particles; wherein the bubble-attached particles are configured to collide under the action of an elastic wave from a vibration source, causing the nanobubbles on their surfaces to rupture, and the bubble-attached particles generate internal energy based on the friction from the collision and the rupture of the bubbles to increase the energy dissipation of the elastic wave, thereby isolating the elastic wave from the vibration source; and a preparation device connected to the lower surface of the vibration isolation capsule via a first conduit, the preparation device being configured to prepare nanobubbles based on a target generation rate under the control of a far-infrared control signal, and to input the nanobubbles into the interior of the vibration isolation capsule through the lower surface of the vibration isolation capsule to change the concentration of the bubble-attached particles inside the vibration isolation capsule; wherein the concentration of the bubble-attached particles is configured to change the damping of the vibration isolation capsule to adjust the vibration isolation characteristics of the vibration isolation capsule.

[0006] According to an embodiment of the present invention, the nanobubble-based capsule vibration isolation system further includes: a gas pressure control device, which is connected to the upper surface of the vibration isolation capsule through a second conduit, and is configured to control the gas pressure inside the vibration isolation capsule to change the gas-liquid mixing ratio of the gas and buffer solution inside the vibration isolation capsule; wherein the gas and buffer solution form a two-phase system, and the two-phase system is configured to change the stiffness and damping characteristics of the two-phase system based on the gas-liquid mixing ratio.

[0007] According to an embodiment of the present invention, the preparation device includes: a first nanobubble preparation chamber, fixedly disposed inside the preparation device, including a stirring module and a buffer solution; wherein, the stirring module is configured to prepare nanobubbles by rotating to cause gas dissolved in the buffer solution to escape.

[0008] According to an embodiment of the present invention, the preparation device further includes: a second nanobubble preparation chamber, which is fixedly disposed inside the preparation device and includes an electrode module and a buffer solution; wherein the electrode module is configured to electrolyze the buffer solution based on an electrical signal to prepare nanobubbles.

[0009] According to an embodiment of the present invention, the preparation apparatus further includes: a liquid pumping module, which is connected to a first nanobubble preparation chamber or a second nanobubble preparation chamber via a third conduit, and is configured to generate a mixture of gas and buffer solution with a target gas-liquid ratio under the control of a far-infrared control signal, and deliver the mixture to the first nanobubble preparation chamber or the second nanobubble preparation chamber to control the generation rate of nanobubbles.

[0010] According to an embodiment of the present invention, the solid particles have a porous structure, and the buffer solution permeates into the porous solid particles under the action of elastic waves. The porous structure is configured to increase the energy dissipation of the elastic waves based on viscosity.

[0011] According to an embodiment of the present invention, the vibration isolation bag further includes a dispersion device, which is fixedly disposed inside the vibration isolation bag and located below the buffer solution, and is configured to disperse the bubble-attached particles into the buffer solution, wherein the dispersed bubble-attached particles are configured to increase the collision frequency between the bubble-attached particles.

[0012] According to an embodiment of the present invention, the dispersing device is a porous distribution plate, which is configured based on the spatial distribution of pore size so that the bubble-attached particles are dispersed through the porous distribution plate to disperse the bubble-attached particles.

[0013] According to an embodiment of the present invention, the nanobubble-based capsule vibration isolation system further includes: a first accelerometer, which is closer to the vibration source than the vibration isolation capsule, and is configured to acquire a first acceleration signal of the elastic wave of the vibration source; a second accelerometer, which is farther from the vibration source than the vibration isolation capsule, and is configured to acquire a second acceleration signal of the elastic wave after being processed by the vibration isolation capsule; and a controller, configured to receive the first acceleration signal and the second acceleration signal, and generate a far-infrared control signal based on the first acceleration signal and / or the second acceleration signal.

[0014] According to an embodiment of the present invention, the nanobubble-based capsule vibration isolation system further includes: a buffer device disposed inside the first duct and configured to stabilize the airflow inside the first duct to maintain the shape of the nanobubbles.

[0015] According to an embodiment of the present invention, nanobubbles can be prepared based on a target generation rate and introduced into the vibration isolation bladder through the lower surface of the bladder to attach the nanobubbles to the surface of solid particles, forming particles with different concentrations of attached bubbles. The collision and friction of the attached bubble particles and the rupture of the nanobubbles generate internal energy to increase the energy dissipation of the elastic waves of the vibration source, thereby effectively improving the vibration isolation effect. Attached Figure Description

[0016] The above and other objects, features and advantages of the present invention will become more apparent from the following description of embodiments of the invention with reference to the accompanying drawings, in which:

[0017] Figure 1 A schematic diagram of a nanobubble-based capsule vibration isolation system according to an embodiment of the present invention is shown.

[0018] Figure 2 A schematic diagram of an electrode module according to an embodiment of the present invention is shown;

[0019] Figure 3 A schematic diagram of a nanobubble-based capsule vibration isolation system according to another embodiment of the present invention is shown.

[0020] Figure 4 A schematic diagram of a nanobubble-based capsule vibration isolation system according to another embodiment of the present invention is shown. Detailed Implementation

[0021] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. However, it should be understood that these descriptions are exemplary only and are not intended to limit the scope of the invention. In the following detailed description, numerous specific details are set forth to provide a thorough understanding of the embodiments of the invention for ease of explanation. However, it will be apparent that one or more embodiments may be practiced without these specific details. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0022] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The terms “comprising,” “including,” etc., as used herein indicate the presence of the stated features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.

[0023] All terms used herein (including technical and scientific terms) have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein are to be interpreted in a manner consistent with the context of this specification, and not in an idealized or overly rigid way.

[0024] When using expressions such as "at least one of A, B and C", they should generally be interpreted in accordance with the meaning that is commonly understood by those skilled in the art (e.g., "a system having at least one of A, B and C" should include, but is not limited to, a system having A alone, a system having B alone, a system having C alone, a system having A and B, a system having A and C, a system having B and C, and / or a system having A, B and C, etc.).

[0025] Figure 1 A schematic diagram of a nanobubble-based capsule vibration isolation system according to an embodiment of the present invention is shown.

[0026] like Figure 1 As shown, the nanobubble-based capsule vibration isolation system includes a first vibration isolation capsule 100 and a preparation device 110. The vibration isolation capsule is filled with a buffer solution 101, solid particles 102 and nanobubbles 103. At least some of the solid particles 102 have nanobubbles 103 attached to their surfaces, forming bubble-attached particles 104. The bubble-attached particles 104 rise inside the vibration isolation chamber based on the buoyancy of the nanobubbles 103. At the same time, under the action of the elastic wave of the vibration source, the bubble-attached particles 104 collide, causing the nanobubbles 103 on the surface of the bubble-attached particles 104 to rupture. The bubble-attached particles 104 generate internal energy based on the friction of the collision and the rupture of the bubbles to increase the energy dissipation of the elastic wave, thereby isolating the elastic wave of the vibration source. After the nanobubbles 103 on the surface of the bubble-attached particles 104 rupture, solid particles 102 are reformed and move to the bottom of the vibration isolation chamber under the action of gravity. Subsequently, they are attached to the bottom of the vibration isolation chamber again by nanobubbles 103, forming bubble-attached particles 104 again and starting to float inside the vibration isolation chamber, and so on.

[0027] The preparation device 110 is connected to the lower surface of the vibration isolation bladder 100 through a first conduit. The preparation device 100 is configured to prepare nanobubbles 103 based on a target generation rate under the control of a far-infrared control signal, and to input the nanobubbles 103 into the interior of the vibration isolation bladder 100 through the lower surface of the vibration isolation bladder 100 to change the concentration of bubble-attached particles 104 inside the vibration isolation bladder 100. The concentration of bubble-attached particles 104 is configured to change the damping of the vibration isolation bladder 100 to adjust the vibration isolation characteristics of the vibration isolation bladder 100.

[0028] In embodiments of the present invention, the vibration isolation capsule can be a sealed container made of a flexible, high-strength rubber composite material, filled with gas and a buffer solution. The buffer solution includes, but is not limited to, pure water, deionized water, ionic liquids, electrolyte solutions, organic solvents, etc. The solid particles can be ceramic materials or polymers. Various surface modification treatments can be applied to the solid particles to change the adhesion degree of the nanobubbles or to create different vibration isolation characteristics. In embodiments of the present invention, the vibration isolation capsule can have a flexible capsule top and a rigid capsule bottom. The vibration isolation capsule can be buried in the soil for vibration isolation or placed on the ground for vibration isolation.

[0029] In embodiments of the present invention, the methods for generating nanobubbles include, but are not limited to: pressurized dissolved air flotation, cyclonic shearing, ultrasonic cavitation, laser cavitation, electrolysis, membrane dispersion, high-pressure jetting, etc.

[0030] In embodiments of the present invention, far-infrared control signals can be generated based on an automatic control program, or they can be generated by manually sending commands. The target generation rate can be predefined and fixed, or it can change in real time during vibration isolation to adapt to different vibration isolation requirements.

[0031] In embodiments of the present invention, the first conduit can be a corrosion-resistant conduit to prevent corrosion of the first conduit when the buffer solution is an ionic liquid, thus affecting the preparation function. A control valve can be installed on the first conduit for safety protection by stopping the input of nanobubbles into the vibration isolation capsule in the event of a sudden dangerous situation.

[0032] In embodiments of the present invention, the higher the generation rate of nanobubbles, the more nanobubbles are inside the vibration isolation capsule, the more bubble-attached particles are formed, and the higher the concentration of bubble-attached particles inside the vibration isolation capsule. When solid particles with attached nanobubbles move in the buffer solution, the viscous resistance they experience is greater than that of smooth solid particles without attached nanobubbles. Under the action of elastic waves, the bubble-attached particles convert more kinetic energy into internal energy, thus their damping is greater, and more energy of elastic waves can be dissipated. The higher the concentration of bubble-attached particles, the greater the damping of the vibration isolation capsule. Therefore, the vibration isolation characteristics of the vibration isolation capsule can be adjusted by changing the concentration of bubble-attached particles.

[0033] Through the embodiments of the present invention, nanobubbles can be prepared based on a target generation rate, and the nanobubbles can be introduced into the vibration isolation bladder through the lower surface of the vibration isolation bladder to attach the nanobubbles to the surface of solid particles, forming particles with different concentrations of attached bubbles. The internal energy generated by the collision and friction of the attached bubble particles and the rupture of the nanobubbles increases the energy dissipation of the elastic waves of the vibration source, effectively improving the vibration isolation effect.

[0034] According to an embodiment of the present invention, the bladder vibration isolation system further includes: a gas pressure control device, which is connected to the upper surface of the vibration isolation bladder through a second conduit, and is configured to control the gas pressure inside the vibration isolation bladder to change the gas-liquid mixing ratio of the gas and buffer solution inside the vibration isolation bladder; wherein the gas and buffer solution form a two-phase system, and the two-phase system is configured to change the stiffness and damping characteristics of the two-phase system based on the gas-liquid mixing ratio.

[0035] In embodiments of the present invention, the gas pressure control device may be a gas compressor. The gas compressor changes the gas content inside the vibration isolation system by blowing gas into or drawing gas out of the second conduit, and controls the gas pressure inside the vibration isolation chamber based on the change in gas content. The second conduit may be a corrosion-resistant conduit to prevent corrosion of the second conduit when the buffer solution is an ionic liquid, which would affect the gas pressure control function.

[0036] In embodiments of the present invention, the bladder-type vibration isolation system further includes a liquid storage device. The liquid storage device can be made of corrosion-resistant material and stores the same buffer solution as inside the vibration isolation bladder. It is connected to the lower surface of the vibration isolation bladder via a conduit. When the gas compressor blows in gas, the gas content inside the vibration isolation bladder increases, and the liquid content decreases; excess liquid is stored in the liquid storage device. When the gas compressor draws in gas, the gas content inside the vibration isolation bladder decreases, and the liquid storage device introduces liquid to increase the liquid content inside the vibration isolation bladder. Control valves can be installed on the conduit connecting the pressure control device and the vibration isolation bladder, and control valves can also be installed on the conduit connecting the liquid storage device and the vibration isolation bladder, for controlling the delivery of gas and buffer solution.

[0037] Due to the compressibility of gases, as the gas proportion in a two-phase system increases, the stiffness and damping of the system relatively decrease, making the isolation chamber more prone to deformation. This allows for vibration isolation of lower-frequency elastic waves, but weakens its shock control capabilities. Conversely, due to the incompressibility of liquids, as the liquid proportion in a two-phase system increases, the stiffness and damping relatively increase. The isolation chamber is less prone to deformation, has a stronger load-bearing capacity, and provides better vibration isolation for higher-frequency elastic waves. By precisely adjusting the gas-liquid ratio, the stiffness and damping characteristics of the isolation chamber can be controlled, allowing it to be matched to specific vibration environments.

[0038] In embodiments of the present invention, the rupture time of nanobubbles can be indirectly controlled by adjusting the gas pressure change and liquid level inside the vibration isolation bladder. When the gas pressure is low and the liquid level is high, the nanobubbles are less likely to rupture, resulting in more bubble-attached particles, thereby altering the vibration isolation characteristics of the bladder. When the vibration isolation bladder is buried underground and the gas pressure is high, the macroscopic characteristics of the bladder are closer to those of an air bladder. The wave impedance of the gas is much lower than that of the surrounding soil layer, and the incident compression wave becomes a reflected tensile wave, realizing vibration isolation through a wavelet impedance transmission and reflection mechanism.

[0039] Through the embodiments of the present invention, the gas pressure inside the vibration isolation system can be changed. By controlling the gas-liquid mixing ratio of the vibration isolation system, the stiffness and damping characteristics of the vibration isolation bladder can be adjusted, thereby achieving a more precise vibration isolation effect.

[0040] According to an embodiment of the present invention, the preparation device includes: a first nanobubble preparation chamber, fixedly disposed inside the preparation device, including a stirring module and a buffer solution; wherein, the stirring module is configured to prepare nanobubbles by rotating to cause gas dissolved in the buffer solution to escape.

[0041] In embodiments of the present invention, nanobubbles can be prepared based on cyclonic shearing. For example, the buffer solution inside the first nanobubble preparation chamber is forced into a swirling flow within a high-speed rotating blade, generating strong centrifugal and shear forces. According to Bernoulli's principle, the pressure of the fluid decreases when it rotates at high speed or passes through a narrow region. When the local pressure is below a certain value, the gas dissolved in the liquid will precipitate and form bubbles. Simultaneously, the high-speed flowing liquid undergoes severe shearing in the narrow channel or rotating interface, causing the gas in the liquid to be torn and broken into nanoscale bubbles. Meanwhile, there is a microporous nozzle above the high-speed rotating blade. When the bubbles and buffer solution passing through the high-speed rotating blade pass through the microporous nozzle, the pore wall generates extremely strong viscous shear force, thereby forming a high-speed jet. The high-speed jet formed after exiting the pore has a velocity difference with the surrounding relatively stationary liquid, forming a shear layer with an extremely high shear rate. This shear layer further breaks up the bubbles, significantly reducing the bubble size and improving bubble size uniformity. Each microporous nozzle is a highly efficient bubble generation unit. Multi-pore array nozzles can be used to process a large amount of fluid per unit time, achieving high-throughput production. Above the nozzle, there can also be a gas chamber, which can be used to remove large bubbles larger than the nanoscale while maintaining pressure to provide stabilization time for the nanobubbles. In embodiments of the invention, the size, concentration, and stability of the generated nanobubbles can be adjusted by changing the structural dimensions of the high-speed rotating blades, altering the surface properties of the high-speed rotating blades, or changing the solubility of the gas in the buffer solution.

[0042] In an embodiment of the present invention, the first nanobubble preparation chamber may further include: a pressure pump located below the high-speed stirring blades to deliver the buffer solution to the vicinity of the high-speed stirring blades at a specific flow rate and velocity; and a microporous filter membrane located above the high-speed stirring blades to provide a one-way channel buffer filtration function to stabilize the airflow generated by the pressure pump.

[0043] Through the embodiments of the present invention, the stable generation of nanobubbles can be achieved based on gyratory shearing, which can be used to adjust the vibration isolation characteristics of the vibration isolation capsule.

[0044] According to an embodiment of the present invention, the preparation device further includes: a second nanobubble preparation chamber, which is fixedly disposed inside the preparation device and includes an electrode module and a buffer solution; wherein the electrode module is configured to electrolyze the buffer solution based on an electrical signal to prepare nanobubbles.

[0045] In embodiments of the present invention, nanobubbles can be generated based on an electrolyzed buffer solution. For example, the second nanobubble preparation chamber includes an electrode plate. When an electric current is applied to the electrode plate, the buffer solution undergoes a redox reaction on the electrode surface, generating gases such as hydrogen and oxygen. When the local gas concentration is supersaturated, bubbles will form near the electrode. On ordinary electrodes, bubbles nucleate at tiny defects on the surface and, with continuous gas replenishment, the bubbles merge laterally and grow larger until buoyancy exceeds adhesion, causing them to float to the surface. However, on nanoscale electrodes, the growth space for bubbles is physically locked. Once a bubble is generated, it quickly covers the entire electrode surface. At this point, the electrode can no longer provide more gas to expand the bubble, and the bubble is confined to an extremely small scale, forming stable nanobubbles. The electrode plate surface can be coated with a titanium coating to prevent corrosion from the buffer solution and extend the service life of the nanobubble preparation chamber.

[0046] In embodiments of the invention, an alternating electrode pulse transmitter can be used to generate alternating current. Current is applied for an extremely short time, causing rapid nucleation of gas on the electrode surface due to electrolysis. Then, the current is cut off. At this point, due to the loss of gas supply and the disappearance of the electric field near the electrode, the newly generated microbubbles rapidly detach from the electrode surface due to thermal motion and fluid disturbance. This results in the bubbles entering the buffer solution before they can merge and expand. By controlling the duty cycle of the pulse signal generating the alternating current, the detachment size of the bubbles can be precisely controlled.

[0047] In embodiments of the present invention, the second nanobubble preparation chamber may further include a pressure pump located below the electrode plate to deliver the buffer solution to the vicinity of the electrode plate at a specific flow rate and velocity. The second nanobubble preparation chamber may also include a microporous nozzle located above the electrode plate; its function is as described above and will not be repeated here.

[0048] Figure 2 A schematic diagram of an electrode module according to an embodiment of the present invention is shown.

[0049] like Figure 2 As shown, the electrode module includes an electrode plate 201, an anti-corrosion titanium coating 202, and anion and cation exchange membranes 203. The electrode plate 201 is used to generate an electric field to electrolyze the buffer solution. The anti-corrosion titanium coating 202 is applied to the surface of the electrode plate 201 to prevent the ions generated during electrolysis from corroding the electrode plate and extend the service life of the equipment. The anion and cation exchange membranes 203 are used to realize the generation of nanobubbles.

[0050] In embodiments of the present invention, the preparation apparatus may simultaneously include a first nanobubble preparation chamber and a second nanobubble preparation chamber, and nanobubbles may be prepared using various different nanobubble generation principles. Nanobubbles generated using different principles can be controlled separately to achieve more precise nanobubble generation.

[0051] Through the embodiments of the present invention, the stable generation of nanobubbles can be achieved based on the principle of electrolysis, which can be used to adjust the vibration isolation characteristics of the vibration isolation capsule.

[0052] According to an embodiment of the present invention, the preparation apparatus further includes: a liquid pumping module, which is connected to a first nanobubble preparation chamber or a second nanobubble preparation chamber via a third conduit, and is configured to generate a mixture of gas and buffer solution with a target gas-liquid ratio under the control of a far-infrared control signal, and deliver the mixture to the first nanobubble preparation chamber or the second nanobubble preparation chamber to control the generation rate of nanobubbles.

[0053] In an embodiment of the present invention, the liquid pumping module includes: a buffer solution storage chamber connected to a water pump via a conduit for providing buffer solution to be delivered to the nanobubble preparation chamber; a water pump connected to both the buffer solution storage chamber and the nanobubble preparation chamber via a conduit for providing power to deliver the buffer solution to the nanobubble preparation chamber; the water pump may be made of corrosion-resistant material; and a gas compressor connected to the nanobubble preparation chamber via a conduit for providing gas to be delivered to the nanobubble preparation chamber. Remote control valves can be installed at the connection points of the gas compressor and the water pump to the conduit. Under the control of a far-infrared control signal, the remote control valves can adjust the content of buffer solution and gas delivered to the nanobubble preparation chamber, mixing specific amounts of buffer solution and gas to produce a gas-liquid mixture with a target gas-liquid ratio. By controlling the gas-liquid ratio, the gas delivery rate, and the buffer solution delivery rate, the generation rate of nanobubbles can be controlled. Simultaneously, a main valve controlling the inflow and outflow of the gas and buffer solution mixture can be installed in the conduit area before the nanobubble preparation chamber to control the overall generation of nanobubbles.

[0054] According to an embodiment of the present invention, the solid particles have a porous structure, and the buffer solution permeates into the porous solid particles under the action of elastic waves. The porous structure is configured to increase the energy dissipation of the elastic waves based on viscosity.

[0055] In embodiments of the present invention, the vibration of the elastic wave drives the movement of the buffer solution. This movement dissipates the energy of the elastic wave. Simultaneously, the movement of the buffer solution allows the porous solid particles to penetrate. As the fluid flows through the narrow pores, it experiences strong viscous friction against the pore walls. The greater the viscous friction, the more kinetic energy of the fluid is converted into internal energy and dissipated, thus achieving the conversion of the kinetic energy of the elastic wave into the internal energy of the solid particles. Therefore, the porous structure of the solid particles can be optimized to increase the viscous friction between the buffer solution and the solid particles, thereby increasing the energy dissipation of the elastic wave. In embodiments of the present invention, the solid particles can be spherical or square.

[0056] According to an embodiment of the present invention, the vibration isolation bag further includes a dispersion device, which is fixedly disposed inside the vibration isolation bag and located below the buffer solution, and is configured to disperse the bubble-attached particles into the buffer solution, wherein the dispersed bubble-attached particles are configured to increase the collision frequency between the bubble-attached particles.

[0057] Inside the vibration isolation chamber, the bubble-attached particles collide under the influence of the elastic waves from the vibration source, causing the nanobubbles on their surfaces to burst. The internal energy generated by the collision friction and bubble bursting increases the energy dissipation of the elastic waves. If the bubble-attached particles are clustered together, they move in the same direction as the elastic waves, making collisions less likely and nanobubbles less prone to bursting. Therefore, the internal energy generated by collision friction and bubble bursting is relatively small, resulting in a lower energy dissipation effect on the elastic waves. Therefore, by dispersing the bubble-attached particles, the collision frequency between them can be increased, thereby generating higher collision internal energy and increasing the energy dissipation of the elastic waves.

[0058] According to an embodiment of the present invention, the dispersing device is a porous distribution plate, which is configured based on the spatial distribution of pore size so that the bubble-attached particles are dispersed through the porous distribution plate to disperse the bubble-attached particles.

[0059] In an embodiment of the present invention, the bubble-attached particles rise due to buoyancy. When they rise to the porous distribution plate, the bubble-attached particles can only continue to rise through the gaps in the pores. When the pores are distributed in the porous distribution plate, the bubble-attached particles will also disperse upwards according to the distribution of the pores, which helps the bubble-attached particles to disperse inside the vibration isolation bag.

[0060] Porous distribution plates can be made of materials such as ceramics, metals, and polymers. Ceramic porous distribution plates have advantages such as high temperature resistance and corrosion resistance, while metal porous distribution plates have advantages such as high mechanical strength, good air permeability, and ease of processing and installation. Polymer distribution plates have advantages such as light weight and wear resistance. The appropriate material can be selected according to the specific application scenario.

[0061] According to an embodiment of the present invention, the bladder vibration isolation system further includes: a first acceleration sensor, which is closer to the vibration source relative to the vibration isolation bladder, and is configured to acquire a first acceleration signal of the elastic wave of the vibration source; a second acceleration sensor, which is farther from the vibration source relative to the vibration isolation bladder, and is configured to acquire a second acceleration signal of the elastic wave after being processed by the vibration isolation bladder; and a controller, configured to receive the first acceleration signal and the second acceleration signal, and generate a far-infrared control signal based on the first acceleration signal and / or the second acceleration signal.

[0062] The controller can adjust the vibration isolation system based on a first acceleration signal. For example, a first acceleration sensor can acquire the first acceleration signal of an elastic wave and obtain the vibration frequency and amplitude information of the elastic wave based on the first acceleration signal. Based on different vibration frequencies and amplitudes of the elastic wave, a far-infrared control signal is generated to control the generation rate and concentration of nanobubbles to achieve adaptive vibration isolation. The controller can also perform output feedback adjustment of the vibration isolation system based on a second acceleration signal. For example, a second acceleration sensor can acquire the frequency band energy information of the elastic wave and adjust the generation rate and concentration of nanobubbles based on this frequency band energy information. Based on different generation rates and concentrations of nanobubbles, the concentration of particles attached to the bubbles can be controlled to adjust the damping characteristics of the vibration isolation capsule, thereby dissipating more frequency band energy. The controller can also adjust relevant parameters of the vibration isolation system based on a comprehensive analysis of the first and second acceleration signals.

[0063] According to an embodiment of the present invention, the nanobubble-based capsule vibration isolation system further includes: a buffer device disposed inside the first duct and configured to stabilize the airflow inside the first duct to maintain the shape of the nanobubbles.

[0064] During the process of generating nanobubbles in the preparation device and introducing them into the vibration isolation bladder through the first conduit, turbulent airflow inside the first conduit can cause the nanobubbles to rupture prematurely, affecting the normal operation of the vibration isolation bladder. Therefore, a buffer device can be installed inside the first conduit to stabilize the airflow and ensure that the nanobubbles inside the first conduit do not rupture prematurely.

[0065] Figure 3 A schematic diagram of a nanobubble-based capsule vibration isolation system according to another embodiment of the present invention is shown.

[0066] like Figure 3As shown, the bladder-type vibration isolation system includes a first accelerometer 301, a second vibration isolation bladder 302, and a second accelerometer 303. The second vibration isolation bladder 302 is buried in the soil below the ground surface. The elastic wave from the vibration source first passes through the first accelerometer 301, then through the second vibration isolation bladder 302 for vibration isolation treatment, and finally through the second accelerometer 303 after vibration isolation treatment.

[0067] Figure 4 A schematic diagram of a nanobubble-based capsule vibration isolation system according to another embodiment of the present invention is shown.

[0068] like Figure 4 As shown, the bladder vibration isolation system includes a liquid pumping module 410, a first nanobubble preparation chamber 421, a second nanobubble preparation chamber 422, a third vibration isolation bladder 430, a liquid storage device 440, and a pressure control device 450.

[0069] The liquid pumping module 410 is connected to the first nanobubble preparation chamber 421 and the second nanobubble preparation chamber 422 via conduits, and is used to deliver a mixture of gas and buffer solution with a target gas-liquid ratio to the first nanobubble preparation chamber 421 and the second nanobubble preparation chamber 422. The first nanobubble preparation chamber 421 and the second nanobubble preparation chamber 422 are used to prepare nanobubbles, which are then delivered to the third vibration isolation capsule 430 via conduits. The third vibration isolation capsule 430 exchanges buffer solution with the liquid storage device 440 via a conduit, and simultaneously exchanges gas with the pressure control device 450 via a conduit.

[0070] Those skilled in the art will understand that the features described in the various embodiments of the present invention can be combined and / or combined in various ways, even if such combinations or combinations are not explicitly described in the present invention. In particular, the features described in the various embodiments of the present invention can be combined and / or combined in various ways without departing from the spirit and teachings of the present invention. All such combinations and / or combinations fall within the scope of the present invention.

[0071] The embodiments of the present invention have been described above. However, these embodiments are merely illustrative and not intended to limit the scope of the invention. Although various embodiments have been described above, this does not mean that the measures in the various embodiments cannot be used advantageously in combination. Various substitutions and modifications can be made by those skilled in the art without departing from the scope of the invention, and all such substitutions and modifications should fall within the scope of the invention.

Claims

1. A capsule vibration isolation system based on nanobubbles, characterized in that, include: The vibration isolation bladder is filled with a buffer solution and solid particles, and at least a portion of the solid particles have nanobubbles attached to their surfaces to form bubble-attached particles. The bubble-attached particles are configured to collide with the elastic waves of the vibration source, causing the nanobubbles on the surface of the bubble-attached particles to rupture. The bubble-attached particles generate internal energy based on the friction of the collision and the rupture of the bubbles to increase the energy dissipation of the elastic waves, thereby isolating the elastic waves of the vibration source. The preparation device is connected to the lower surface of the vibration isolation bladder through a first conduit. The preparation device is configured to prepare nanobubbles based on a target generation rate under the control of a far-infrared control signal, and to input the nanobubbles into the interior of the vibration isolation bladder through the lower surface of the vibration isolation bladder to change the concentration of the particles attached to the bubbles inside the vibration isolation bladder. The concentration of the attached particles is configured to change the damping of the vibration isolation bladder, thereby adjusting the vibration isolation characteristics of the vibration isolation bladder.

2. The nanobubble-based capsule vibration isolation system according to claim 1, characterized in that, The nanobubble-based capsule vibration isolation system also includes: A pressure control device is connected to the upper surface of the vibration isolation bladder via a second conduit and is configured to control the gas pressure inside the vibration isolation bladder to change the gas-liquid mixing ratio of the gas inside the vibration isolation bladder and the buffer solution. The gas and the buffer solution form a two-phase system, and the two-phase system is configured to change the stiffness and damping characteristics of the two-phase system based on the gas-liquid mixing ratio.

3. The nanobubble-based capsule vibration isolation system according to claim 1, characterized in that, The preparation apparatus includes: The first nanobubble preparation chamber is fixedly disposed inside the preparation device, including a stirring module and the buffer solution; The stirring module is configured to generate nanobubbles by rotating the gas dissolved in the buffer solution to escape.

4. The nanobubble-based capsule vibration isolation system according to claim 1, characterized in that, The preparation apparatus includes: The second nanobubble preparation chamber is fixedly disposed inside the preparation device, including an electrode module and the buffer solution; The electrode module is configured to electrolyze the buffer solution based on an electrical signal to prepare the nanobubbles.

5. The nanobubble-based capsule vibration isolation system according to claim 3 or 4, characterized in that, The preparation apparatus further includes: The liquid pumping module is connected to the first or second nanobubble preparation chamber via a third conduit. It is configured to generate a mixture of gas and buffer solution with a target gas-liquid ratio under the control of the far-infrared control signal, and deliver the mixture to the first or second nanobubble preparation chamber to control the generation rate of the nanobubbles.

6. The nanobubble-based capsule vibration isolation system according to claim 1, characterized in that, The solid particles have a porous structure, and the buffer solution permeates into the porous solid particles under the action of the elastic wave. The porous structure is configured to increase the energy dissipation of the elastic wave based on viscosity.

7. The nanobubble-based capsule vibration isolation system according to claim 1, characterized in that, The vibration isolation bag also includes: A dispersion device is fixedly disposed inside the vibration isolation bag and located below the buffer solution. It is configured to disperse the bubble-attached particles into the buffer solution, and the dispersed bubble-attached particles are configured to increase the collision frequency between the bubble-attached particles.

8. The nanobubble-based capsule vibration isolation system according to claim 7, characterized in that, The dispersion device is a porous distribution plate, which is configured based on the spatial distribution of pore size so that the bubble-attached particles are dispersed through the porous distribution plate to disperse the bubble-attached particles.

9. The nanobubble-based capsule vibration isolation system according to claim 1, characterized in that, The nanobubble-based capsule vibration isolation system also includes: A first acceleration sensor is located closer to the vibration source than the vibration isolation bladder. The first acceleration sensor is configured to collect the first acceleration signal of the elastic wave of the vibration source. The second acceleration sensor is located further away from the vibration source than the vibration isolation cell, and is configured to acquire the second acceleration signal of the elastic wave after it has been processed by the vibration isolation cell. The controller is configured to receive the first acceleration signal and the second acceleration signal, and generate the far-infrared control signal based on the first acceleration signal and / or the second acceleration signal.

10. The nanobubble-based capsule vibration isolation system according to claim 1, characterized in that, The nanobubble-based capsule vibration isolation system also includes: A buffer device is disposed inside the first conduit and configured to stabilize the airflow inside the first conduit in order to maintain the shape of the nanobubbles.

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