CN211971820U - Self-powered water surface full-coverage ultrasonic algae removal device - Google Patents
Self-powered water surface full-coverage ultrasonic algae removal device Download PDFInfo
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- CN211971820U CN211971820U CN202020046431.2U CN202020046431U CN211971820U CN 211971820 U CN211971820 U CN 211971820U CN 202020046431 U CN202020046431 U CN 202020046431U CN 211971820 U CN211971820 U CN 211971820U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E10/40—Solar thermal energy, e.g. solar towers
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Abstract
The utility model discloses a self-powered water surface full-coverage ultrasonic algae removal device, which comprises a power generation module, a control module, a bearing device, an algae removal module and a water quality monitoring module; the bearing device comprises an engineering plastic plate, a buoyancy tank and N vertical rods; the power generation module comprises M power generation units; the power generation unit comprises a Stirling engine and an electromagnetic generator; the algae removal module comprises N-1 ultrasonic probes; the N-1 ultrasonic probes and the water quality monitoring modules are arranged on the N connecting rods in a one-to-one correspondence manner; the control module comprises an electric control cabinet, a storage battery and a controller. When the water quality monitoring device works, the temperature difference between the upper part and the lower part of the water surface is utilized to compress and expand to generate electricity, and the controller controls each work according to the data of the water quality monitoring module. The utility model discloses the device is based on the temperature difference electricity generation that solar radiation heat energy and water cooling produced, has advantages such as clean high efficiency, conversion efficiency height, with low costs, automatic operation.
Description
Technical Field
The utility model relates to an ecological algae removal technical field especially relates to a self-power surface of water full coverage supersound removes algae device.
Background
With the rapid development of industry, the blue algae bloom phenomenon becomes a common water quality problem faced by lakes, rivers and the like at home and abroad, and the burst of the blue algae bloom reduces the dissolved oxygen content in water to cause water quality deterioration, so that the death of fishes and other aquatic organisms is caused, and a series of ecological problems are further caused. An efficient, clean and sustainable algae removal scheme is urgently needed. The ultrasonic technology for inhibiting the growth of algae and purifying water quality is verified by the experiments of domestic and foreign research institutions and related units. The technical operation means is automatic, no chemical medicine is required to be introduced, the reaction process is mild, the speed is high, no secondary pollution is caused, and the like, so that the technology has a wide background in the field of water quality protection. The industrialized development of ultrasonic algae removal has been realized by commercial companies in developed countries including the netherlands and the usa. For large-area lakes or reservoirs, a plurality of ultrasonic generators are required to inhibit the growth of blue-green algae on the whole water surface. Therefore, if the self-powered ultrasonic generating device can be realized, the device has important significance for inhibiting the blue algae in the water body for a long time. The MPC-Buoy algae removal instrument of the Dutch LG Sonic company can cover an ultrasonic algae removal device with the diameter of 500 meters and based on solar power supply, comprises three ultrasonic probes to realize sound field radiation in a water area, each transducer needs to undertake the ultrasonic radiation task of 120 degrees, and for the traditional ultrasonic probes, certain dead angles exist inevitably, and sound waves cannot be radiated in all directions to perform algae removal operation. In addition to the nonlinear and attenuation characteristics of ultrasonic wave propagation in water, the theoretical radiation angle of ultrasonic waves in the water area is seriously attenuated along with the expansion of the water body range.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to the defect that involves in the background art, a self-power surface of water full coverage supersound removes algae device is provided.
The utility model adopts the following technical scheme to solve the technical problems
A self-powered water surface full-coverage ultrasonic algae removal device comprises a power generation module, a control module, a bearing device, an algae removal module and a water quality monitoring module;
the bearing device comprises an engineering plastic plate, a buoyancy tank and N vertical rods, wherein N is a natural number more than or equal to 2, the buoyancy tank floats on the water surface, and the upper end surface of the buoyancy tank is fixedly connected with the lower end surface of the engineering plastic plate and used for providing buoyancy; one end of each vertical rod is fixedly connected with the lower surface of the engineering plastic plate, and the other end of each vertical rod is submerged under water; m mounting holes are formed in the engineering plastic plate, and M is a natural number greater than or equal to 1;
the power generation module comprises M power generation units;
the power generation unit comprises a Stirling engine and an electromagnetic generator, wherein the Stirling engine adopts a gas distribution piston type Stirling engine, and the electromagnetic generator is arranged on an engineering plastic plate; the input shaft of the electromagnetic generator is coaxially and fixedly connected with the output shaft of the Stirling engine and is used for generating electricity under the driving of the Stirling engine and storing electric energy to the control module;
the Stirling engines of the M power generation units are arranged in the M mounting holes in a one-to-one correspondence manner, the hot end cylinder of the Stirling engine is positioned above the water surface, and the outer surface of the Stirling engine is provided with a plurality of solar heat collection flat plates for absorbing solar energy and converting the solar energy into heat energy to be transmitted to inert gas in the hot end cylinder; a cold end cylinder of the Stirling engine is immersed in a water body, and the inert gas in the cold end cylinder is cooled by depending on the temperature of the water body;
the algae removal module comprises N-1 ultrasonic probes for sending ultrasonic waves to remove algae; the N-1 ultrasonic probes and the water quality monitoring modules are arranged on the N vertical rods in a one-to-one correspondence manner and are submerged under water;
the water quality monitoring module comprises an ammonia nitrogen sensor, a dissolved oxygen sensor, a chlorophyll a sensor, an phycocyanin sensor and a pH sensor, and is respectively used for detecting ammonia nitrogen content, dissolved oxygen content, chlorophyll-a, phycocyanin content and pH value in the water body and transmitting the ammonia nitrogen content, the dissolved oxygen content, the chlorophyll-a, the phycocyanin content and the pH value to the control module;
the control module comprises an electric control cabinet, a storage battery and a controller;
the electric control cabinet is arranged on the engineering plastic plate and is used for placing the storage battery and the controller and preventing rainwater from wetting the storage battery and the controller;
the storage battery is electrically connected with the electromagnetic generators of the power generation units respectively and is used for storing the electric energy generated by the power generation units and supplying the energy;
the controller is respectively and electrically connected with the storage battery, the ammonia nitrogen sensor, the dissolved oxygen sensor, the chlorophyll a sensor, the phycocyanin sensor, the pH sensor and the ultrasonic probes and is used for controlling the ultrasonic probes to work according to the sensing data of the ammonia nitrogen sensor, the dissolved oxygen sensor, the chlorophyll a sensor, the phycocyanin sensor and the pH sensor.
As a further optimization scheme of the self-powered water surface full-coverage ultrasonic algae removal device of the utility model, the ultrasonic probe comprises a vibrating body, an engineering plastic shell and first to fourth piezoelectric ceramic pieces;
the vibrating body is made of metal and comprises first to third vibrating parts, the first to third vibrating parts are all cylinders and are sequentially and coaxially fixedly connected, the first vibrating part and the third vibrating part are symmetrical about the second vibrating part, and the diameter of the cross section of the second vibrating part is larger than that of the first vibrating part;
the first piezoelectric ceramic pieces, the second piezoelectric ceramic pieces, the third piezoelectric ceramic pieces and the fourth piezoelectric ceramic pieces are uniformly arranged on the side wall of the second vibration part in the circumferential direction, wherein the first piezoelectric ceramic pieces and the third piezoelectric ceramic pieces are symmetrical about the center of the second vibration part, and the second piezoelectric ceramic pieces and the fourth piezoelectric ceramic pieces are symmetrical about the center of the second vibration part;
the first piezoelectric ceramic piece, the second piezoelectric ceramic piece, the third piezoelectric ceramic piece and the fourth piezoelectric ceramic piece are all longitudinal vibration ceramic pieces and are polarized along the thickness direction, wherein the polarization directions of the first piezoelectric ceramic piece and the second piezoelectric ceramic piece point to the outer wall from the inner wall, and the polarization directions of the third piezoelectric ceramic piece and the fourth piezoelectric ceramic piece point to the inner wall from the outer wall; the first piezoelectric ceramic piece, the second piezoelectric ceramic piece, the third piezoelectric ceramic piece, the fourth piezoelectric ceramic piece and the controller are electrically connected;
the engineering plastic shell seals the vibrating body and the first to fourth piezoelectric ceramic plates, and an ultrasonic coupling agent is filled in the engineering plastic shell;
and the engineering plastic shell of the ultrasonic probe is fixedly connected with the corresponding vertical rod.
As the utility model relates to a self-power surface of water all standing supersound removes algae device further optimization scheme, first to fourth piezoceramics piece adopts epoxy to paste on the lateral wall of second vibration portion.
As the utility model relates to a self-power surface of water full coverage supersound removes further optimization scheme of algae device, be equipped with a plurality of logical grooves that are used for ventilative on the automatically controlled cabinet, and put on leading to the groove and be equipped with and be used for rain-proof backplate.
The utility model also discloses a working method of this self-power surface of water full coverage supersound removes algae device, contains following process:
step 1), each power generation unit generates power:
step 1.1), a solar heat collection flat plate of the power generation unit collects and absorbs solar energy to convert the solar energy into heat energy to a hot end cylinder of the Stirling engine, and a cold end cylinder immersed in water forms a temperature difference, so that inert gas expands and contracts between the hot end cylinder and the cold end cylinder to drive an output shaft of the Stirling engine to rotate;
step 1.2), an output shaft of the Stirling engine drives an electromagnetic generator to generate electricity, and electric energy is stored in a storage battery to supply power;
step 2), the water quality monitoring module monitors the ammonia nitrogen content, the dissolved oxygen content, the chlorophyll-a content, the phycocyanin content and the PH value in water in real time and transmits the contents to the controller;
and 3), controlling each ultrasonic probe to emit an ultrasonic radiation field to inhibit the growth of algae by the controller according to the sensing data of the water quality monitoring module.
The utility model also discloses an ultrasonic probe control method of this self-power surface of water full coverage supersound algae removal device contains following step:
applying a first alternating voltage with the frequency of 2n +1 order bending resonance frequency of the ultrasonic probe unit to the first piezoelectric ceramic piece and the third piezoelectric ceramic piece, wherein n =0,1,2,3 … …, so that the ultrasonic probe unit generates left and right bending vibration, and applying a second alternating voltage with the same frequency and amplitude as the first alternating voltage and the phase difference of 90 degrees to the second piezoelectric ceramic piece and the fourth piezoelectric ceramic piece, so that the ultrasonic probe unit generates front and back bending vibration; the two bending resonance modes which are perpendicular to each other enable the ultrasonic probe to present a 2n +1 order rotation bending resonance mode, so that an ultrasonic radiation field is formed on the water surface to inhibit the growth of algae.
The utility model adopts the above technical scheme to compare with prior art, have following technological effect:
the utility model provides an supersound removes algae device, based on the phased array principle, through the transmitting frequency and the radiation range of the ultrasonic wave that control ultrasonic transducer produced, can restrain the growth and the reproduction of blue alga effectively. In addition, based on the real-time feedback of the monitoring probe, the optimal ultrasonic algae removal effect is achieved with the minimum power consumption. Meanwhile, the self-powered problem of the ultrasonic algae removal device is further solved by utilizing the high-efficiency energy conversion of the Stirling engine to be matched with the electromagnetic generator for power generation.
The utility model discloses an ultrasonic algae removal device is clean high-efficient, conversion efficiency is high, with low costs, automatic operation, remove advantages such as algae is fast, the effect is good.
Drawings
FIG. 1 is a schematic structural view of an ultrasonic algae removal device of the present invention;
FIG. 2 is a schematic structural diagram of a carrier;
FIG. 3 is a schematic view of the internal structure of the power generation unit;
FIG. 4 is a schematic structural diagram of a control module;
FIG. 5 is a schematic view of a structure in which a vibrating body and first to fourth piezoelectric ceramic pieces are matched in an ultrasonic probe;
FIG. 6 is a cross-sectional view of an ultrasound probe;
FIG. 7 is a schematic diagram of the polarization direction and energization of a piezoelectric ceramic wafer;
fig. 8 is a schematic view of a first-order rotational bending resonance mode of operation.
In the figure, 1-a power generation unit, 1.1-a Stirling engine, 1.2-a solar heat collecting plate, 1.3-an electromagnetic generator, 2-a control module, 2.1-an electric control cabinet, 2.2-a through groove on the electric control cabinet, 2.3-a protective plate on the through groove of the electric control cabinet, 3-a bearing device, 3.1-an engineering plastic plate, 3.2-a floating box, 3.3-a vertical rod, 4-an ultrasonic probe, 4.1-an engineering plastic shell, 4.2-a vibrating body, 4.3-a first piezoelectric ceramic plate, 4.4-an ultrasonic coupling agent and 5-a water quality monitoring module.
Detailed Description
The technical scheme of the utility model is further explained in detail with the attached drawings as follows:
the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, components are exaggerated for clarity.
As shown in figure 1, the utility model discloses a self-powered surface of water full coverage supersound removes algae device, including power generation module, control module, bear the device, remove algae module and water quality monitoring module.
As shown in fig. 2, the bearing device comprises an engineering plastic plate, a buoyancy tank and N vertical rods, wherein N is a natural number greater than or equal to 2, the buoyancy tank floats on the water surface, and the upper end surface of the buoyancy tank is fixedly connected with the lower end surface of the engineering plastic plate and used for providing buoyancy; one end of each vertical rod is fixedly connected with the lower surface of the engineering plastic plate, and the other end of each vertical rod is submerged under water; and M mounting holes are formed in the engineering plastic plate, and M is a natural number more than or equal to 1.
The power generation module comprises M power generation units;
as shown in fig. 3, the power generation unit comprises a stirling engine and an electromagnetic generator, wherein the stirling engine adopts a gas distribution piston type stirling engine, and the electromagnetic generator is arranged on an engineering plastic plate; the input shaft of the electromagnetic generator is coaxially and fixedly connected with the output shaft of the Stirling engine and is used for generating electricity under the driving of the Stirling engine and storing electric energy to the control module;
the Stirling engines of the M power generation units are arranged in the M mounting holes in a one-to-one correspondence manner, the hot end cylinder of the Stirling engine is positioned above the water surface, and the outer surface of the Stirling engine is provided with a plurality of solar heat collection flat plates for absorbing solar energy and converting the solar energy into heat energy to be transmitted to inert gas in the hot end cylinder; a cold end cylinder of the Stirling engine is immersed in water, and inert gas in the cold end cylinder is cooled by means of the temperature of the water.
The algae removal module comprises N-1 ultrasonic probes for sending ultrasonic waves to remove algae; the N-1 ultrasonic probes and the water quality monitoring modules are arranged on the N vertical rods in a one-to-one correspondence mode and are submerged underwater.
The water quality monitoring module comprises an ammonia nitrogen sensor, a dissolved oxygen sensor, a chlorophyll a sensor, an phycocyanin sensor and a pH sensor, and is used for detecting ammonia nitrogen content, dissolved oxygen content, chlorophyll-a, phycocyanin content and pH value in the water body and transmitting the ammonia nitrogen content, the dissolved oxygen content, the chlorophyll-a, the phycocyanin content and the pH value to the control module.
The control module comprises an electric control cabinet, a storage battery and a controller;
the electric control cabinet is arranged on the engineering plastic plate and is used for placing the storage battery and the controller and preventing rainwater from wetting the storage battery and the controller;
the storage battery is electrically connected with the electromagnetic generators of the power generation units respectively and is used for storing the electric energy generated by the power generation units and supplying the energy;
as shown in fig. 4, the electric control cabinet is provided with a plurality of through grooves for ventilation, and the through grooves are provided with a protective plate for rain prevention.
The controller is respectively and electrically connected with the storage battery, the ammonia nitrogen sensor, the dissolved oxygen sensor, the chlorophyll a sensor, the phycocyanin sensor, the pH sensor and the ultrasonic probes and is used for controlling the ultrasonic probes to work according to the sensing data of the ammonia nitrogen sensor, the dissolved oxygen sensor, the chlorophyll a sensor, the phycocyanin sensor and the pH sensor.
As shown in fig. 5 and 6, the ultrasonic probe includes a vibrating body, an engineering plastic shell and first to fourth piezoelectric ceramic plates;
the vibrating body is made of metal and comprises first to third vibrating parts, the first to third vibrating parts are all cylinders and are sequentially and coaxially fixedly connected, the first vibrating part and the third vibrating part are symmetrical about the second vibrating part, and the diameter of the cross section of the second vibrating part is larger than that of the first vibrating part;
the first piezoelectric ceramic pieces, the second piezoelectric ceramic pieces, the third piezoelectric ceramic pieces and the fourth piezoelectric ceramic pieces are uniformly arranged on the side wall of the second vibration part in the circumferential direction, wherein the first piezoelectric ceramic pieces and the third piezoelectric ceramic pieces are symmetrical about the center of the second vibration part, and the second piezoelectric ceramic pieces and the fourth piezoelectric ceramic pieces are symmetrical about the center of the second vibration part;
the first piezoelectric ceramic piece, the second piezoelectric ceramic piece, the third piezoelectric ceramic piece and the fourth piezoelectric ceramic piece are all longitudinal vibration ceramic pieces and are polarized along the thickness direction, wherein the polarization directions of the first piezoelectric ceramic piece and the second piezoelectric ceramic piece point to the outer wall from the inner wall, and the polarization directions of the third piezoelectric ceramic piece and the fourth piezoelectric ceramic piece point to the inner wall from the outer wall; the first piezoelectric ceramic piece, the second piezoelectric ceramic piece, the third piezoelectric ceramic piece, the fourth piezoelectric ceramic piece and the controller are electrically connected;
the engineering plastic shell seals the vibrating body and the first to fourth piezoelectric ceramic plates, and an ultrasonic coupling agent is filled in the engineering plastic shell;
and the engineering plastic shell of the ultrasonic probe is fixedly connected with the corresponding vertical rod.
Fig. 7 shows the polarization directions and the energization modes of the first to fourth piezoelectric ceramic plates.
The utility model also discloses a working method of this self-power surface of water full coverage supersound removes algae device, contains following process:
step 1), each power generation unit generates power:
step 1.1), a solar heat collection flat plate of the power generation unit collects and absorbs solar energy to convert the solar energy into heat energy to a hot end cylinder of the Stirling engine, and a cold end cylinder immersed in water forms a temperature difference, so that inert gas expands and contracts between the hot end cylinder and the cold end cylinder to drive an output shaft of the Stirling engine to rotate;
step 1.2), an output shaft of the Stirling engine drives an electromagnetic generator to generate electricity, and electric energy is stored in a storage battery to supply power;
step 2), the water quality monitoring module monitors the ammonia nitrogen content, the dissolved oxygen content, the chlorophyll-a content, the phycocyanin content and the pH value in water in real time and transmits the contents to the controller;
and 3), controlling each ultrasonic probe to emit an ultrasonic radiation field to inhibit the growth of algae by the controller according to the sensing data of the water quality monitoring module.
The utility model also discloses an ultrasonic probe control method of this self-power surface of water full coverage supersound algae removal device contains following step:
applying a first alternating voltage with the frequency of 2n +1 order bending resonance frequency of the ultrasonic probe unit to the first piezoelectric ceramic piece and the third piezoelectric ceramic piece, wherein n =0,1,2,3 … …, so that the ultrasonic probe unit generates left and right bending vibration, and applying a second alternating voltage with the same frequency and amplitude as the first alternating voltage and the phase difference of 90 degrees to the second piezoelectric ceramic piece and the fourth piezoelectric ceramic piece, so that the ultrasonic probe unit generates front and back bending vibration; the two bending resonance modes perpendicular to each other enable the ultrasonic probe to present a 2n +1 order rotation bending resonance mode, so that an ultrasonic radiation field is formed on the water surface to inhibit the growth of algae, as shown in fig. 8.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The above-mentioned embodiments further describe the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (4)
1. A self-powered water surface full-coverage ultrasonic algae removal device is characterized by comprising a power generation module, a control module, a bearing device, an algae removal module and a water quality monitoring module;
the bearing device comprises an engineering plastic plate, a buoyancy tank and N vertical rods, wherein N is a natural number more than or equal to 2, the buoyancy tank floats on the water surface, and the upper end surface of the buoyancy tank is fixedly connected with the lower end surface of the engineering plastic plate and used for providing buoyancy; one end of each vertical rod is fixedly connected with the lower surface of the engineering plastic plate, and the other end of each vertical rod is submerged under water; m mounting holes are formed in the engineering plastic plate, and M is a natural number greater than or equal to 1;
the power generation module comprises M power generation units;
the power generation unit comprises a Stirling engine and an electromagnetic generator, wherein the Stirling engine adopts a gas distribution piston type Stirling engine, and the electromagnetic generator is arranged on an engineering plastic plate; the input shaft of the electromagnetic generator is coaxially and fixedly connected with the output shaft of the Stirling engine and is used for generating electricity under the driving of the Stirling engine and storing electric energy to the control module;
the Stirling engines of the M power generation units are arranged in the M mounting holes in a one-to-one correspondence manner, the hot end cylinder of the Stirling engine is positioned above the water surface, and the outer surface of the Stirling engine is provided with a plurality of solar heat collection flat plates for absorbing solar energy and converting the solar energy into heat energy to be transmitted to inert gas in the hot end cylinder; a cold end cylinder of the Stirling engine is immersed in a water body, and the inert gas in the cold end cylinder is cooled by depending on the temperature of the water body;
the algae removal module comprises N-1 ultrasonic probes for sending ultrasonic waves to remove algae; the N-1 ultrasonic probes and the water quality monitoring modules are arranged on the N vertical rods in a one-to-one correspondence manner and are submerged under water;
the water quality monitoring module comprises an ammonia nitrogen sensor, a dissolved oxygen sensor, a chlorophyll a sensor, an phycocyanin sensor and a pH sensor, and is respectively used for detecting ammonia nitrogen content, dissolved oxygen content, chlorophyll-a, phycocyanin content and pH value in the water body and transmitting the ammonia nitrogen content, the dissolved oxygen content, the chlorophyll-a, the phycocyanin content and the pH value to the control module;
the control module comprises an electric control cabinet, a storage battery and a controller;
the electric control cabinet is arranged on the engineering plastic plate and is used for placing the storage battery and the controller and preventing rainwater from wetting the storage battery and the controller;
the storage battery is electrically connected with the electromagnetic generators of the power generation units respectively and is used for storing the electric energy generated by the power generation units and supplying the energy;
the controller is respectively and electrically connected with the storage battery, the ammonia nitrogen sensor, the dissolved oxygen sensor, the chlorophyll a sensor, the phycocyanin sensor, the pH sensor and the ultrasonic probes and is used for controlling the ultrasonic probes to work according to the sensing data of the ammonia nitrogen sensor, the dissolved oxygen sensor, the chlorophyll a sensor, the phycocyanin sensor and the pH sensor.
2. The self-powered water surface full-coverage ultrasonic algae removal device according to claim 1, wherein the ultrasonic probe comprises a vibrating body, an engineering plastic shell and first to fourth piezoelectric ceramic plates;
the vibrating body is made of metal and comprises first to third vibrating parts, the first to third vibrating parts are all cylinders and are sequentially and coaxially fixedly connected, the first vibrating part and the third vibrating part are symmetrical about the second vibrating part, and the diameter of the cross section of the second vibrating part is larger than that of the first vibrating part;
the first piezoelectric ceramic pieces, the second piezoelectric ceramic pieces, the third piezoelectric ceramic pieces and the fourth piezoelectric ceramic pieces are uniformly arranged on the side wall of the second vibration part in the circumferential direction, wherein the first piezoelectric ceramic pieces and the third piezoelectric ceramic pieces are symmetrical about the center of the second vibration part, and the second piezoelectric ceramic pieces and the fourth piezoelectric ceramic pieces are symmetrical about the center of the second vibration part;
the first piezoelectric ceramic piece, the second piezoelectric ceramic piece, the third piezoelectric ceramic piece and the fourth piezoelectric ceramic piece are all longitudinal vibration ceramic pieces and are polarized along the thickness direction, wherein the polarization directions of the first piezoelectric ceramic piece and the second piezoelectric ceramic piece point to the outer wall from the inner wall, and the polarization directions of the third piezoelectric ceramic piece and the fourth piezoelectric ceramic piece point to the inner wall from the outer wall; the first piezoelectric ceramic piece, the second piezoelectric ceramic piece, the third piezoelectric ceramic piece, the fourth piezoelectric ceramic piece and the controller are electrically connected;
the engineering plastic shell seals the vibrating body and the first to fourth piezoelectric ceramic plates, and an ultrasonic coupling agent is filled in the engineering plastic shell;
and the engineering plastic shell of the ultrasonic probe is fixedly connected with the corresponding vertical rod.
3. The self-powered water surface full coverage ultrasonic algae removal device according to claim 2, wherein the first to fourth piezoelectric ceramic plates are attached to the side wall of the second vibration part by epoxy resin.
4. A self-powered water surface full-coverage ultrasonic algae removal device according to claim 1, wherein a plurality of through grooves for ventilation are arranged on the electric control cabinet, and a protective plate for rain prevention is arranged on each through groove.
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| CN111056589A (en) * | 2020-01-09 | 2020-04-24 | 南京航空航天大学 | Self-powered water surface full-coverage ultrasonic algae removal device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111056589A (en) * | 2020-01-09 | 2020-04-24 | 南京航空航天大学 | Self-powered water surface full-coverage ultrasonic algae removal device and method |
| CN111056589B (en) * | 2020-01-09 | 2024-01-30 | 南京航空航天大学 | Self-powered water surface full-coverage ultrasonic algae removal device and method |
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