CN103058323B - Sunken sound pole and high frequency vibrating device - Google Patents

Abstract

The present invention discloses a sonotrode or horn and a high-frequency vibration device having the sonotrode or horn for aeration and air stripping. The sonotrode or horn has a concave feature on the output surface, a large working end surface, and a high displacement end surface. The sonotrode or horn is used to vibrate the water body at a high speed to produce tiny droplets of particles, and a plurality of sonotrode or horn high-speed vibration devices are combined to effectively perform aeration and air stripping operations.

Description

A sunken sonic pole and high-frequency vibration device

technical field

The invention relates to a sunken sonic pole and its high-frequency vibration device, in particular to a sunken sonic pole and its high-frequency vibration device combined with aeration and blow-off operations.

Background technique

High-intensity ultrasonic waves (usually referring to vibrations whose frequency exceeds 20 kHz) are widely used, such as cleaning, emulsification, mixing, dispersion, atomization, material cutting, cloth cutting, drilling, machining, plastic welding, metal welding, Atomization, cell destruction, various types of material or object destruction, etc., can all use the high-speed movement of high-intensity ultrasonic waves to achieve their working effects. In the above-mentioned applications, in order to achieve higher high-speed motion, it is desirable to have a larger displacement magnification (output surface displacement/input surface displacement) in the design of the ultrasonic sonotrode (ultrasonic horn, sonotrode) to meet the working requirements. efficiency. Most of the known designs of ultrasonic sonotrodes are longitudinal movements, and their shapes are mostly stepped, exponential, conical, Fourier, Catenoidal, Bézier, or Combination designs of the above-mentioned types, etc., in the design of the above-mentioned types or their combination designs, or adopt the small-sized folded ultrasonic sonotrode (folded sonotrode) designed by converting longitudinal vibration into bending vibration as a space exploration rock For drilling; or in order to obtain a relatively flat and large-sized output surface, the ultrasonic sonic pole is designed with a lateral slot (slot). As shown in Figure 1, in order to increase the displacement of the output end 4 of the sonic pole, the area of the output end 4 area should be reduced to increase its displacement amplification rate, but the above-mentioned ultrasonic sonic pole will cause its output The working area of terminal 4 is reduced. Also therefore prior art is mostly used in the processing operation of local solid or water body in a small range, for example: cutting, plastic welding, drilling, wire bonding (wire bonding) of IC industry, eyeball lens emulsification, scalpel etc. Another example: In order to obtain liquid droplets in the range of microns to tens of microns, the known ultrasonic nebulizer usually uses a small piezoelectric atomization device with a frequency in the range of 1 MHz to 3 MHz. Less than 25 mm, or use a small piezoelectric atomization device with a frequency in the range of 60 kHz to 80 kHz combined with a vibrating plate with an aperture of tens of microns, and its working diameter is less than 10 mm. The conventional ultrasonic atomization device mentioned above has a small working area and a low atomization volume, and is only suitable for the treatment of respiratory diseases or as a small-scale humidification device for the home environment. It is difficult to implement the atomization function on it.

Aeration and air stripping (aeration and air stripping) is to dissolve the gas into the water body, or drive the dissolved gas out of the water body. The aeration method can be divided into: air is sent into the water body through the arranged diffusion device At this time, the gas is a discontinuous phase, and the water body is a continuous phase, or the water body is dispersed into the atmosphere through an array of diffusion devices, and the water body is a discontinuous phase, and the gas is a continuous phase. Aeration is widely used in water and sewage treatment projects, such as the oxygen transfer system of the aerobic biological treatment system of sewage treatment to remove biodegradable organic matter in sewage, or the use of aeration in aeration grit chambers To achieve the effect of mixing and stirring, and to prevent sewage corruption, or to use aeration to remove organic volatiles (VOCs, volatile organic compounds) or pollutants in sewage or groundwater, such as ammonia nitrogen and gasoline additive MTBE, etc. through different A type of aeration device or stripping device (aerator or air stripper) procedure to leave the water body, or use the oxidation caused by the dissolved oxygen of the air entering the water body to oxidize other substances such as iron, manganese or organic solvents in the water .

In order to increase the effect of aeration, in addition to increasing the temperature of water or air, different types of aerators and air strippers can also be used, such as: (1) increase gas and dissolve in the liquid phase (2) increase the ratio of the contact area between gas and water, (3) increase the contact time between gas and water, etc. The known technologies include: increasing the air water ratio, increasing the height of the air stripping tower, adding different types of packings inside the stripping tower, and increasing the fountain type aerator ( The height of the spray column of the jet aerator is either to use a nozzle with a smaller aperture or to increase the turbulence of the spray column, to increase the depth of the bubble diffuser or to use a smaller aeration aperture, etc. However, the above-mentioned known technology has a relatively large pressure loss and requires a large air or water column pressure, which means that a blower or a water pump with a large power and a large energy consumption is required, or a building such as a blowing tower that is too high impact on the environment. In addition, the composition of sewage is usually complex and has many impurities. The fillings in the aeration holes, water spray holes or stripping towers are easily blocked by sewage impurities, scale or algae growth under long-term use, resulting in inefficient aeration. Significantly reduce and increase the frequency of maintenance, and therefore it is often necessary to use the sewage filter first before blowing off. These factors lead to higher operation and maintenance costs.

When the ambient temperature is below the freezing point, the freezing of the sewage surface will also affect the aeration effect of the underwater aeration device. In addition, the maintenance of the conventional underwater aeration device also needs to suspend the sewage treatment process and discharge the pool water before performing maintenance. The procedure is cumbersome and expensive, and the sewage that cannot be treated during the maintenance period may pollute the surrounding environment.

When the high-intensity ultrasonic sonic pole is placed in a water body, the high-pressure radiation sound field at the front end will produce an acoustic cavitation effect. Accompanied by the acoustic cavitation effect is an environment with a pressure exceeding thousands of atmospheres and a thermal effect exceeding 5000°C. Jet flow over 1500 m/s, and highly active OH* radicals. In the previous patents of ultrasonic blow-off devices for volatiles such as ammonia nitrogen combined with ultrasonic acoustic cavitation and aeration (CN02148455.4, CN200410067671.6, CN200610044991.9, CN201110182864.6, CN02220442.3, CN200420068588.6, CN201142002251 9, CN200910089078.4, CN201110025931.3, CN02286629.9, CN200820032722.5, CN200920063826.7, CN201020192681.3, CN201020561835.1, CN201020564461.9) It is inserted into the water body to work, without any description of the characteristics of the ultrasonic technology itself.

Contents of the invention

In the present invention, when the amplitude of the concave sonic pole exceeds the critical value, the capillary waves on the surface of the water poured above the concave sonic pole will be broken to produce tiny droplets in the air, and at the same time cooperate with the natural flow or forced flow of the air to achieve aeration and blow-off effect.

The present invention discloses a hollow sonotrode. The concave sound pole includes an output end, a neck and an input end. Wherein the output end includes an output surface and one or more depressions, and the depressions are opened on the output surface. The depressions are independent and have any shape, such as inverted cone, cylinder, cube and polygon.

The recessed sonic pole provided by the present invention has one or more recesses for use in high-speed movement to atomize water into small-diameter droplets for aeration and blow-off.

In addition, the present invention also discloses a high-speed vibration device. This high-speed vibration device includes a transducer (transducer, converter), a booster (booster), a concave sound pole and a water column device. The amplifying device is connected to the transducer and amplifies the amplitude generated by the transducer. The concave sound pole includes an output end, a neck and an input end, wherein the output end includes an output surface and one or more depressions, and the depressions open on the output surface. The output surface outputs the amplitude to pour the water column device over the output surface of the concave sound pole and quickly atomize the water body into tiny liquid droplets in the air. When the recessed sound pole works, its working direction is upward, and the water column device is located above the recessed sound pole.

The output surface of the concave sonic pole of the present invention is designed to have a concave shape. This structure can provide a larger working area and can limit the random flow of water, and effectively mist the water column water body located on the output surface of the concave sonic pole. Turn into tiny liquid droplets in the air. This atomized micro-droplet can quickly volatilize the volatile substances in the micro-droplet in the air with the natural flow or forced flow of the air. The volatile substance can be reused through the recovery process, or provide oxygen in the air. Then the tiny droplets containing high dissolved oxygen flow back to the water body such as the sewage pond or pond, so that the water body contains a higher dissolved oxygen rate, or quickly oxidize the specific substances in the tiny droplets and then return to the sewage pool Or groundwater and other parent bodies.

The present invention uses the sunken sonic pole to atomize the water column water body into tiny liquid droplets in the air, which has a high air-water ratio, high aeration efficiency and short aeration time, and the relevant height of the required blow-off tower buildings can also be reduced accordingly. Thus reducing the impact on the environment landscape. The method of the present invention is a purely physical method without the secondary pollution produced by the chemical method used in the conventional ammonia nitrogen emission reduction technology.

The present invention uses the concave sonic pole to atomize the water column into tiny liquid droplets in the air, and there is no conventional technology that uses small apertures to be blocked by sewage debris, scale or algae.

The present invention does not use any filler, and the pressure loss of blowing air is very small, the operation cost is low, and there is no pressure loss and aeration efficiency loss caused by filler scaling or algae breeding to block the filler.

The present invention uses a water column with a larger diameter, which can improve efficiency, has a high tolerance range for sewage impurities, and can use a simple sewage filter device or not use a sewage filter device to save operating costs.

The present invention uses a larger diameter water column water body, and can easily adopt waste treatment technology. For example: when performing ammonia nitrogen stripping operations, the pH value of the water body containing ammonia nitrogen must be adjusted to an appropriate alkaline range. The present invention can use alkaline coal ash, which is regarded as waste, as a modulator to make the water body contain higher Free ammonia (free ammonia) is easy to follow-up stripping operation of ammonia nitrogen.

The high-speed vibrating device of the present invention is designed as a module, which can be used alone, or the number of high-speed vibrating devices of the present invention can be adjusted in real time according to the demand for aeration, and online maintenance can be performed without suspending the sewage treatment process.

The high-speed vibrating device of the present invention can be placed on the surface of the sewage pool. When the ambient temperature is below freezing point, the high-speed vibration of the sonic pole can inhibit the freezing of the sewage surface and maintain a certain aeration effect.

The high-speed vibrating device of the present invention uses the sonic pole to atomize the water column into tiny droplets in the air, and can cooperate with the natural flow or forced flow of the air to evenly scatter the tiny droplets in the surrounding environment as a humidity increasing device in a large space environment. , such as: plant factories, or atomization pre-treatment devices that separate and purify biomass energy (such as: ethanol) from water during the production process.

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

Description of drawings

Figure 1 shows a schematic diagram of a conventional ultrasonic sonotrode;

Fig. 2 shows a schematic diagram of a recessed sonotrode having a combination of cylindrical and inverted conical recesses according to an embodiment of the present invention;

3 shows a schematic diagram of a recessed sonotrode with a cylindrical recess according to an embodiment of the present invention;

4 shows a schematic diagram of a recessed sonotrode with a cylindrical recess according to another embodiment of the present invention;

5 shows a schematic diagram of a recessed sonotrode with a plurality of cylindrical recesses according to an embodiment of the present invention;

Figure 6 shows a schematic diagram of a high-frequency vibration device according to an embodiment of the present invention;

7 shows a schematic diagram of a system composed of a plurality of high-frequency vibration devices according to an embodiment of the present invention; and

FIG. 8 shows a schematic diagram of a system composed of multiple high-frequency vibration devices according to another embodiment of the present invention.

Among them, reference signs

1', 1'' system

10, 10' concave pole

20, 20' input

30, 30' neck

40, 40' output

41, 41' output surface

42, 42' recessed

50 Amplifier

51 Flange structure

52 Ring plate

53 through hole

60 transducers

61 Piezoelectric device

70 Water column device

81 tower body

82 Air intake

83 exhaust port

91 horizontal plane

92 body of water

100 High frequency vibration device

Detailed ways

The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments to further understand the purpose, solution and effect of the present invention, but it is not intended to limit the scope of protection of the appended claims of the present invention. In addition, like component symbols correspond to the same or corresponding component parts.

As shown in the embodiment of FIG. 2 , the recessed sonotrode 10 includes an input end 20 , a neck portion 30 and an output end 40 . The output end 40 includes an output surface 41 and a recess 42 . In the embodiment shown in FIG. 2 , the recess 42 of the recessed sonic pole 10 is a combination of a cylindrical shape and an inverted conical shape, and the size of the recess can be changed according to actual needs to achieve an optimized processing level. In the embodiment shown in FIG. 3 , the recess 42 of the recessed sonic pole 10 is a cylinder. In the embodiment shown in Figure 4, the depression 42 of the concave sound pole 10 is a cylinder, but the scale of its neck 30 is the same as that of the output end. In other embodiments (not shown), the scale of the input end 20 is , the scale of the neck 30 and the scale of the output end 40 can be changed freely due to actual needs. In the embodiment shown in Figure 5, the recess 42 of the recessed sonic pole 10 is composed of a plurality of cylindrical recesses. For other embodiments (not shown), these recesses 42 can be independently selected from the reverse conical shape. , cylindrical or a combination of cylindrical and inverted conical, etc.

In Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the diameter of the output end 40 of the recessed sonic pole 10 can be designed between 30 millimeters and 300 millimeters according to different requirements, and in Fig. 2, Fig. 3, Fig. 4 and Fig. 5 The recessed 42 apertures of the recessed sound pole 10 can be designed between 3 millimeters and 300 millimeters depending on the requirements.

The vibration frequency output by the concave sound pole 10 can be designed according to different requirements. The vibration frequency of the present invention is designed between 6 kHz and 60 kHz, so as to quickly atomize the water body to produce a large number of tiny droplets in the high-frequency and high-speed motion. in the air. Theoretically, the higher the vibration frequency of the concave sonic pole 10, the smaller the size of the tiny liquid droplets. According to the theory of fine waves on the surface of water bodies, the size of the liquid droplets in the present invention is within the range of tens of microns.

The high frequency vibration device 100 shown in FIG. 6 includes a transducer 60 , an amplifier 50 , a recessed sonic pole 10 ′ and a water column device 70 . The transducer 60 includes a piezoelectric device 61 . The piezoelectric device 61 can convert electrical oscillations into mechanical oscillations. In other embodiments (not shown), the transducer 60 that converts electrical oscillations into mechanical oscillations may be of the magnetostrictive type. As shown in the embodiment of FIG. 6 , the amplifier device 50 is a flange structure 51 , and the flange structure 51 includes an annular plate 52 , wherein a plurality of through holes 53 are disposed on the annular plate 52 . The amplifier device 50 is mainly connected to the transducer 60 and the recessed sound pole 10'. The water column device 70 is located above the recessed sonic pole 10', mainly guiding the water body above the output end 40' of the recessed sonic pole 10'. The surrounding water pipe devices connected to the water column device 70 are known technologies, which are not shown in FIG. 6 of the embodiment.

In the embodiment shown in Figure 6, the output end 40' of the recessed sonotrode 10' comprises an output surface 41' and a cylindrical depression 42', and the output surface 41' outputs the amplitude. When the recessed sonotrode 10' is implemented, its The working direction is upwards. The technical features of the other recessed sonic poles 10 ′ are similar to those of the above-mentioned technical features of the recessed sonic pole 10 , and will not be repeated here. The following description is mainly aimed at the combined working modes of various high-frequency vibration devices 100 .

Embodiment 1' shown in Fig. 7 comprises a plurality of high-frequency vibrating devices 100, a tower body 81, an air inlet 82 and an exhaust port 83 as an air stripping tower (air stripping tower) system, wherein arrows are gas Flow direction. In the embodiment shown in Figure 7, a plurality of high-frequency vibrating devices 100 form a two-dimensional arrangement inside the tower body 81, but in other embodiments, a plurality of high-frequency vibrating devices 100 can be formed inside the tower body 81 A three-dimensional arrangement (not shown in the figure). In the embodiment shown in Figure 7, the gas enters the interior of the tower body 81 through the air inlet 82. When the flowing gas passes through the tiny liquid droplets atomized by the high-frequency vibration device 100, the flowing gas can dissolve in the tiny liquid droplets. The volatile substances in the droplets are quickly driven out of the water body and brought to the exhaust port 83 to be discharged, and then the discharged gas can be recycled or finally treated according to actual needs. In this embodiment 1', because no filler is used, the pressure loss of the blow-off air is extremely small, the operating cost is low, and there is no pressure loss and aeration efficiency loss caused by the scaling of the filler or the growth of algae blocking the filler. . In addition, this embodiment 1' uses a water column with a larger diameter, which can improve efficiency and has a high tolerance to sewage impurities, and can use a simple sewage filter device or not use a sewage filter device to save operating costs. In this embodiment 1', the technology of treating waste with waste can be easily adopted. For example: when carrying out ammonia nitrogen stripping operation, the pH value of the water body containing ammonia nitrogen is adjusted to an appropriate alkaline range by using alkaline coal ash which is regarded as waste, for example: pH = 11, so that the water body contains higher free ammonia ( free ammonia) to facilitate the stripping of ammonia nitrogen.

Embodiment 2'' as shown in FIG. 8 includes a plurality of high-frequency vibrating devices 100 , a water body 92 and a water surface 91 like a sewage tank aerator. In this embodiment, the high-frequency vibrating device 100 is placed on the surface of the pool, and the horizontal plane 91 is between the output surface 40 of the high-frequency vibrating device 100 and the amplification device 50, and the water body of the water column device 70 can come from the sewage through the pipeline device. any part of the pool. The micro-droplets that are rapidly atomized by the high-frequency vibration device 100 are placed in the air, and the air provides oxygen in the micro-droplets, and then the micro-droplets containing high dissolved oxygen flow back to the sewage pool, so that the water body of the sewage pool contains higher dissolved oxygen. Rate. The high-speed vibrating device 100 of this embodiment is designed as a module type, and the number of high-speed vibrating devices 100 installed can be adjusted in real time according to the demand for aeration volume, and online maintenance can be performed without suspending the sewage treatment process. In addition, the high-speed vibrating device 100 of this embodiment is placed on the surface of the sewage pool. When the ambient temperature is below freezing point, the high-speed vibration of the concave sonic pole can inhibit the surface of the sewage pool from freezing and maintain a certain amount of aeration in the sewage pool. Effect.

Another application example:

For the increase of humidity in large space environments such as plant factories, a simple water body filter device can be used or the technology of the present invention can be used to atomize a large-scale water column water body into tiny droplets in the air. The natural flow or forced flow of air distributes tiny liquid droplets evenly in the environment to increase the humidity of the large space environment.

Another application example:

In the production process of producing ethanol and other biomass energy, it is necessary to separate ethanol and water to purify ethanol biomass energy. Traditionally, the difference in boiling point of ethanol and water is used to purify by using a heating method with large energy consumption. Using the technology of the present invention, It can be used as a pretreatment technology for the purification of biomass energy such as ethanol to save energy consumption.

Another application example:

For groundwater containing manganese or iron, the technology of the present invention can be used to quickly atomize the groundwater into tiny droplets in the air, and the specific substances such as manganese or iron in the tiny droplets can be quickly oxidized and then flow back to the groundwater and other substrates, thereby purifying groundwater.

The technical contents and technical characteristics of the present invention have been disclosed as above, but those with ordinary knowledge in the technical field of the present invention should understand that the teachings and disclosures of the present invention do not depart from the spirit and scope of the present invention defined by the appended patent scope. Can be used for various replacements and modifications. For example, many of the devices or structures disclosed above can be implemented in different ways or replaced by other structures, or a combination of the above two ways can be used.

In addition, the scope of rights in this case is not limited to the process, equipment, manufacturing, material components, devices, methods or steps of the specific embodiments disclosed above. Those with ordinary knowledge in the technical field of the present invention should understand that, based on the teachings and disclosures of the present invention, the processes, machines, manufacturing, material components, devices, methods or steps, whether existing or developed in the future, are consistent with the disclosure of the embodiments of this case. Those that perform substantially the same function in substantially the same manner and achieve substantially the same result can also be used in the present invention. Therefore, the scope of claims below is intended to cover components, devices, methods or steps used in such processes, machines, manufacturing, and substances.

Claims (9)

1. a depression sound utmost point, is characterized in that, comprises:

One output, comprises an output surface and multiple depression, and wherein this depression is positioned at this output surface;

One neck, connects this input and output; And

One input, connects this neck, and this output diameter is between 30 millimeters to 300 millimeters.

2. the depression sound utmost point according to claim 1, is characterized in that, these depressions are to be independently selected from turbination, cylindrical or cylindrical and obconic combination.

3. the depression sound utmost point according to claim 1, is characterized in that, the aperture of these depressions is between 3 millimeters to 300 millimeters.

4. the depression sound utmost point according to claim 1, is characterized in that, the vibration frequency that this output is exported is between 6 kHz to 60 kHz.

5. a high-frequency vibrating device, is characterized in that, comprises:

One transducer, comprises a piezo-electric device;

One amplitude device, connects this transducer, and amplifies the amplitude that this piezo-electric device produces;

The one depression sound utmost point, comprises:

One output, comprises an output surface and multiple depression, and wherein this depression is positioned at this output surface, and this output is exported this amplitude, and this output diameter is between 30 millimeters to 300 millimeters;

One neck, connects this output and input;

One input, connects this neck; And

One water column device, by the output surface top of the water body guiding depression sound utmost point.

6. high-frequency vibrating device according to claim 5, is characterized in that, these depressions are to be independently selected from turbination, cylindrical or cylindrical and obconic combination.

7. high-frequency vibrating device according to claim 5, is characterized in that, the aperture of these depressions is between 3 millimeters to 300 millimeters.

8. high-frequency vibrating device according to claim 5, is characterized in that, the vibration frequency that this output is exported is between 6 kHz to 60 kHz.

9. high-frequency vibrating device according to claim 5, is characterized in that, the operative orientation of this output is for upwards.

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