CN110963545A - Method and system for driving underwater creatures away by using high-frequency and low-frequency acoustic wave transducer - Google Patents
Method and system for driving underwater creatures away by using high-frequency and low-frequency acoustic wave transducer Download PDFInfo
- Publication number
- CN110963545A CN110963545A CN201911030961.6A CN201911030961A CN110963545A CN 110963545 A CN110963545 A CN 110963545A CN 201911030961 A CN201911030961 A CN 201911030961A CN 110963545 A CN110963545 A CN 110963545A
- Authority
- CN
- China
- Prior art keywords
- frequency
- acoustic wave
- low
- wave transducer
- transducer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
- C02F1/36—Treatment of water, waste water, or sewage with mechanical oscillations ultrasonic vibrations
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
Abstract
The invention discloses a method and a system for expelling underwater creatures by using a high-frequency and low-frequency acoustic wave transducer. The system is characterized in that a forebay, a sewage discharge grid, a rotary filter screen, a condenser, a siphon well and the like which are connected through a water intake culvert are arranged, and underwater organisms including fishes and micro organisms are effectively driven out.
Description
Technical Field
The invention belongs to the field of transducers, and relates to a method and a system for driving underwater organisms away by using a high-frequency and low-frequency acoustic wave transducer.
Background
The condenser cooling water of power plants along the river and the seaside generally adopts river water or seawater as a cooling medium and adopts a unit system direct current water supply system. In order to prevent the adhesion and breeding of river and sea creatures in the cooling water system, further influence the flow area of the cooling water system, reduce the heat transfer efficiency of the condenser and generate biological corrosion, the condenser cooling water system is required to be sterilized and algae-removed.
The common treatment method of the seawater direct-current cooling system is to add a bactericide to drive away or kill marine organisms so as to keep the system clean; the other type is to paint an anticorrosive paint, so that marine objects cannot be attached and bred. In the actual production operation, if the dosage of the seawater circulating water inlet is insufficient, sea creatures such as hydroids and the like can be bred quickly, so that heat exchange tubes of the condenser are polluted and blocked, the operation pressure difference is increased, the heat transfer effect of the condenser is seriously influenced, and even a unit is forced to stop running and cleaning in serious cases. And to the circulating water that uses along river power plant for long river water, in order to prevent the water source pollution, often forbid to adopt and add medicine clearance, the rubber ball belt cleaning device that adopts in industry often, the rubber ball washs to a certain extent and can improve the heat transfer effect of condenser, can also prolong the life of heat exchange tube. Compared with the traditional treatment process, the sound wave expelling technology is a novel treatment technology, the sound wave generating device is used for releasing sound waves with specific frequency spectrums in a target water area, so that a sound field with a larger range is formed, then the sound waves of the sound field are directly acted on underwater organisms through interference superposition, and the characteristics of the sound waves are utilized for expelling the underwater organisms.
Disclosure of Invention
The invention aims to solve the problem of influence of microorganisms on operation of a circulating water system of a power plant, and provides a method and a system for driving underwater organisms away by using a high-frequency and low-frequency sound wave transducer.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a method for driving away underwater creatures by using a high-frequency and low-frequency acoustic wave transducer is characterized in that the low-frequency acoustic wave transducer and a high-frequency acoustic wave transducer are arranged in a water body to be driven away along the moving direction of the underwater creatures, fish in the water body is driven away by using the low-frequency acoustic wave transducer, microorganisms which are not driven away by the low-frequency acoustic wave transducer are killed by using the high-frequency acoustic wave transducer, and debris of the microorganisms is removed by filtering, so that the flowing cleanness of the water body is kept.
Further, in the method for driving away underwater creatures by using the high-frequency and low-frequency acoustic wave transducers, the high-frequency acoustic wave transducers are all arranged in an array mode.
Further, the method for driving away underwater creatures by using the high-frequency and low-frequency acoustic wave transducer is characterized in that the frequency range of the low-frequency acoustic wave transducer is 20Hz-20kHz, and the frequency range of the high-frequency acoustic wave transducer is 20kHz-50 kHz.
Further, the method for driving away the underwater creatures by using the high-frequency and low-frequency sound wave transducer is characterized in that the filtering is carried out by adopting a rotary filter screen and then is discharged by adopting a siphon well.
Further, according to the method for driving away the underwater creatures by using the high-frequency and low-frequency acoustic wave transducer, the temperature sensor is arranged in the low-frequency acoustic wave transducer to test the temperature, and the low-frequency acoustic wave transducer is automatically closed when the working temperature is higher than a preset value.
Further, in the method for driving away underwater organisms by using the high-frequency and low-frequency acoustic wave transducer, the low-frequency acoustic wave transducer and the high-frequency acoustic wave transducer are arranged on the mounting rack with adjustable height.
The utility model provides an utilize high low frequency acoustic wave transducer to drive away from biological system under water, the forebay of water intaking culvert union coupling, the blowdown bars are connected to the delivery port of forebay, blowdown bars exit linkage rotary filter screen, rotary filter screen goes out the water end and connects the siphon well through setting up circulating pump and condenser, wherein set up the mounting bracket in the forebay, be provided with the high frequency acoustic wave transducer that low frequency acoustic wave transducer and array set up on the mounting bracket, the both sides of forebay all are provided with the mount, all be provided with motor and leading wheel on the mount, wire rope is connected respectively at the both ends of mounting bracket, both ends wire rope all are connected with the motor that corresponds the end through the leading wheel.
Further, utilize high low frequency sound wave transducer to drive away from biological system under water, high frequency sound wave transducer and low frequency sound wave transducer on the mounting bracket pass through the cable conductor and are connected with the switch board.
Further, the system for driving away the underwater creatures by using the high-low frequency acoustic wave transducer comprises a control cabinet, a signal generator and a power amplifier, wherein the control cabinet at least comprises the control module, the signal generator and the power amplifier which are connected with each other.
Furthermore, in the system for driving away underwater organisms by using the high-frequency and low-frequency sound wave transducer, the temperature sensor is arranged in the cavity of the low-frequency sound wave transducer, and the working temperature of the low-frequency sound wave transducer is tested by the temperature sensor; the mounting bracket top is provided with the level gauge, links to each other through temperature sensor and level gauge and the control module in the switch board.
According to the system for driving away underwater organisms by using the high-frequency and low-frequency sound wave transducer, the high-frequency and low-frequency sound wave transducer is arranged in a front pool of a power plant, the front pool has the function of stabilizing water flow entering a water suction chamber and avoiding backflow and vortex, so that the front pool is a buffer pool before cooling water enters a circulating water system. When the system operates, part of fish organisms in the circulating water are under the action of the low-frequency sound waves at the forebay and are far away from the sound source, so that the fish organisms return to the river and the sea from the water intake, and part of microorganisms insensitive to the low-frequency sound waves are quickly killed under the action of the high-frequency sound waves at the forebay.
In the system for expelling underwater creatures by using the high-frequency and low-frequency acoustic wave transducer provided by the invention, the low-frequency acoustic wave transducer can adopt an existing transducer, such as the transducer described in patent CN201811391678.1, and the high-frequency acoustic wave transducer adopts a transducer which is commonly used at present and can generate high-frequency-band acoustic waves, such as a WBT45 transducer and the like in the hangzhou applied acoustic research institute.
According to the system for driving away underwater organisms by using the high-frequency and low-frequency sound wave transducers, the low-frequency sound wave transducers can adopt electrodynamic transducers, the high-frequency sound wave transducers can adopt piezoelectric ceramic transducers, and the number of the transducers depends on the size of the front pool. The acoustic wave action range of the low-frequency acoustic wave transducer is large, only one acoustic wave transducer needs to be configured in the front pool, but the high-frequency acoustic wave transducer needs to be densely arranged due to the limited action range, the energy output on the unit area meets the use requirement, and the high-frequency acoustic wave transducer is in an array module form due to the certain energy output requirement on the unit area.
The high-low frequency transducer can be arranged on a sliding rail from top to bottom, a liquid level sensor is arranged on the transducer, and the control system can automatically adjust the position of the transducer according to the feedback information of the liquid level sensing device to ensure that the transducer is in the optimal acting position. In addition, a temperature sensor can be additionally arranged in the low-frequency sound wave transducer to monitor the temperature in the low-frequency sound wave transducer, when the temperature exceeds the upper limit set by the system, the control system forcibly stops the system to operate, the transducer is cooled, and the safe operation of the transducer is ensured.
The invention relates to a plurality of working principles, which are as follows:
the first working principle is as follows: ultrasonic cavitation effect. The micro bubble nucleus in the liquid generates vibration under the action of ultrasonic waves, when sound pressure reaches a certain value, the bubble rapidly expands and then is suddenly closed, and when the bubble is closed, shock waves are generated, and a series of dynamic processes such as expansion, closing and oscillation are carried out. Ultrasonic cavitation effect is utilized to kill underwater microorganisms.
The working principle is as follows: fish biological sound sensitive frequency domain. The high-strength sound wave with the frequency of the section is emitted by utilizing the sensitivity of the fish organisms to sound waves in a specific frequency range, so that the fish organisms are repelled.
Advantages of the invention
① the purpose of expelling and killing aquatic creatures by sound wave is realized by adjusting the frequency of the sound wave, increasing the sound power and utilizing the inherent property of the sound wave, the phenomenon that microorganisms or algae in the circulating water of the condenser of the power plant are attached to and grow on the wall of the heat exchange pipe is effectively solved, and the heat exchange efficiency of the condenser is improved.
② compared with the traditional technology of killing aquatic organisms by adding drugs in the circulating water system of the power plant, the sound wave has no pollution to the surrounding environment, and the sound wave can be continuously used without frequently replacing equipment, thereby saving the production cost of the power plant to a certain extent.
③ the low frequency transducer acts on the high-grade aquatic creature sensitive to sound wave, the high-power sound wave emitted can drive away the aquatic creature, while the high-power ultrasonic wave of the high frequency transducer can directly kill the microorganism in the sound wave action range, the mixing action of the two transducers has better effect of driving and killing aquatic creature.
④ the acoustic wave water-killing organism has simple process flow, small transformation difficulty, small occupied space and easy maintenance and repair.
⑤ the system is equipped with temperature sensor and level meter, the control system can realize the monitoring of the equipment position and temperature, and adjust the equipment according to the monitoring result, realize the automatic operation of system.
Drawings
FIG. 1 is a schematic diagram of a system for repelling underwater organisms using a high and low frequency acoustic wave transducer as provided in example 2 of the present invention;
FIG. 2 is a schematic diagram of a forebay structure provided in embodiment 2 of the present invention;
FIG. 3 is a top view of the mounting bracket and transducer mounting in the forebay provided in embodiment 2 of the present invention;
fig. 4 is a schematic diagram of a control system and a control process provided in embodiment 3 of the present invention.
In the above fig. 1-4, 1 is a water intake culvert, 2 is a front pool, 21 is an installation frame, 22 is a high-frequency acoustic wave transducer, 23 is a low-frequency acoustic wave transducer, 24 is a fixed frame, 25 is a motor, 26 is a guide wheel, 27 is a steel wire rope, 28 is a cable, 29 is a control cabinet, 3 is a sewage disposal grid, 4 is a rotary filter screen, 5 is a circulating pump, 6 is a condenser, 7 is a siphon well, 8 is a temperature sensor, and 9 is a liquid level meter.
The specific implementation mode is as follows:
example 1
The embodiment provides a method for expelling underwater creatures by using a high-frequency and low-frequency acoustic wave transducer, which is specifically characterized in that the low-frequency acoustic wave transducer and a high-frequency acoustic wave transducer are arranged in a water body to be expelled along the moving direction of the underwater creatures, fish in the water body is expelled by using the low-frequency acoustic wave transducer, microorganisms which are not expelled by the low-frequency acoustic wave transducer are killed by using the high-frequency acoustic wave transducer, and the debris of the microorganisms is removed by filtering, so that the flowing cleanness of the water body is kept. In a specific process, the positions of the low-frequency acoustic wave transducer and the high-frequency acoustic wave transducer can be set according to the use environment. In order to better exert the driving-off effect, the high-frequency acoustic wave transducer can be arranged in an array mode, the acoustic frequency range is 20Hz-20kHz of the low-frequency acoustic wave transducer, and the frequency range of the high-frequency acoustic wave transducer is 20kHz-50 kHz. The debris of microorganisms removed by filtration may be discharged through a siphon well, for example, and the filtration may be performed by a rotary screen.
In the embodiment, the low-frequency sound wave transducer and the high-frequency sound wave transducer are combined and applied to driving away underwater living things, and the effect of driving away the underwater living things can be better on the whole by utilizing the action range of the high-frequency sound waves and the low-frequency sound waves and the mutual compensation of the high-frequency sound waves and the low-frequency sound waves.
Example 2
The embodiment provides a system for expelling underwater creatures by using a high-frequency and low-frequency sound wave transducer, which is applied to a circulating water system of a power plant to expel underwater creatures, and comprises the following specific steps:
as shown in fig. 1 and fig. 2, it includes forebay 2 that water intake culvert 1 connects, blowdown bars 3 are connected to the delivery port of forebay 2, blowdown bars 3 exit linkage rotary filter 4, rotary filter 4 goes out the water end and connects siphon well 7 through setting up circulating pump 5 and condenser 6, wherein set up mounting bracket 21 in the forebay 2, be provided with the high frequency acoustic wave transducer 22 that low frequency acoustic wave transducer 23 and array set up on the mounting bracket 21, the both sides of forebay 2 all are provided with mount 24, all be provided with motor 25 and leading wheel 26 on the mount 24, wire rope 27 is connected respectively at the both ends of mounting bracket 21, both ends wire rope 27 all are connected with the motor that corresponds the end through the leading wheel that corresponds the end, high frequency acoustic wave transducer 22 and low frequency acoustic wave transducer 23 on mounting bracket 21 are connected with switch board 29 through cable conductor 28.
In the process of driving away underwater organisms by using the system for driving away underwater organisms by using the high-frequency and low-frequency acoustic wave transducer, when fish organisms enter a circulating water system through the water intake culvert 1, because part of the fish organisms are closer to the mounting frame 21, firstly, because the action distance of the low-frequency acoustic wave is far, the action of the low-frequency acoustic wave emitted by the low-frequency acoustic wave transducer 23 is stronger and stronger, so that the fish organisms are far away from a sound source part, return to the river and sea from the water intake culvert 1, and some organisms insensitive to the low-frequency acoustic wave continue to advance to enter the front pool 2, in the front pool 2, due to the cavitation effect of the ultrasonic wave, the microorganisms further approach the mounting frame 21 along with the approach of the water flow and are killed by the ultrasonic wave emitted by the high-frequency acoustic wave transducer 22, debris enters the circulating water system along with the water flow, and, cleaned out of the circulating water system and the microbial debris drains into siphon well 7 via condenser 6 and thence into the river, during which the debris does not adsorb on condenser 6.
The mounting arrangement of the high and low frequency transducers in the front pool 2 is shown in fig. 3, fig. 3 is a top view of the front pool 2, wherein a mounting frame 21 is transversely arranged in the front pool 2, the array-arranged high frequency acoustic transducers 22 are provided with a plurality of array modules, and the low frequency acoustic transducers 23 are arranged between the array modules of the high frequency acoustic transducers 22. As can be seen from fig. 2, a lifting system composed of a fixed frame 24, a motor 25, a guide wheel 26 and a wire rope 27 is installed on both sides of the forebay 2 to lift the mounting frame 21, and the system may be installed on the dikes on both sides of the forebay 2. The mounting frame 21 is lifted in the forebay 2 through a wire rope 27, and the proper action position is adjusted according to the different water levels in the forebay 2.
Example 3
The present embodiment is a further improvement on the basis of the above embodiment 2, wherein the control cabinet 29 at least includes a control module, a signal generator and a power amplifier, the temperature sensor 8 is arranged inside the cavity of the oscillator cavity of the low-frequency acoustic wave transducer 23, and the working temperature of the low-frequency acoustic wave transducer 23 is tested by the temperature sensor 8; the top of the mounting frame 21 is provided with a liquid level meter 9, and the liquid level meter 9 is connected with a control module in a control cabinet 29 through a temperature sensor 8.
In this embodiment, a control system is composed of a signal generator, a power amplifier, a temperature sensor, a liquid level meter and a control module, the schematic diagram of the control system and the control process is shown in fig. 4, the temperature sensor is installed inside a vibrator of the low-frequency transducer, and the internal temperature of the cavity of the vibrator is monitored. The liquid level meter is arranged at the top of the mounting frame, and the purpose of monitoring the position of the transducer is achieved by monitoring the position of the mounting frame. Data measured by the temperature sensor and the liquid level meter are transmitted to the control module, and the control module makes corresponding reactions according to the data, such as: when the temperature is too high, the control module turns off the power supply of the power amplifier, stops supplying power to the low-frequency acoustic wave transducer, stops working, cools the low-frequency acoustic wave transducer, and turns on the power amplifier power supply when the temperature reaches the working temperature, the power amplifier works again, and the transducer starts to operate again; when the liquid level measured by the liquid level meter is higher than a set value, the control module starts the motor, lifts the mounting frame to enable the liquid level to reach the set value, and descends the mounting frame when the liquid level measured by the liquid level meter is lower than the set value.
The frequency bandwidth of the sound production of the whole system provided by the embodiment is divided into a low-frequency bandwidth and a high-frequency bandwidth, wherein the low-frequency bandwidth can be 20Hz-20kHz and is emitted by a low-frequency sound wave transducer, and the high-frequency bandwidth is 20kHz-50kHz and is emitted by a high-frequency sound wave transducer. However, when the system performs broadband frequency sweeping, when the frequency enters a high frequency band from a low frequency band, the control module can complete the operation of switching the low frequency underwater generator to the high frequency transducer, so that the system can smoothly complete the frequency sweeping work of the required frequency band.
Claims (10)
1. A method for driving away underwater creatures by using a high-frequency and low-frequency acoustic wave transducer is characterized in that the low-frequency acoustic wave transducer and a high-frequency acoustic wave transducer are arranged in a water body to be driven away along the moving direction of the underwater creatures, fishes in the water body are driven away by using the low-frequency acoustic wave transducer, microorganisms which are not driven away by the low-frequency acoustic wave transducer are killed by using the high-frequency acoustic wave transducer, and the remains of the microorganisms are removed through filtration, so that the flowing cleanness of the water body is kept.
2. The method for propelling aquatic creatures with high and low frequency acoustic wave transducers according to claim 1, wherein the high frequency acoustic wave transducers are all arranged in an array.
3. The method for propelling aquatic creatures with a high and low frequency sonic transducer according to claim 1, wherein the frequency range of the low frequency sonic transducer is 20Hz-20kHz and the frequency range of the high frequency sonic transducer is 20kHz-50 kHz.
4. The method for propelling organisms underwater using a high and low frequency sonic transducer according to claim 1 wherein the filtering is performed using a rotary screen followed by a siphon well.
5. The method for expelling underwater creatures using a high and low frequency acoustic wave transducer according to claim 1, wherein the low frequency transducer is automatically turned off when the operating temperature is higher than a preset value by setting a temperature sensor inside the low frequency transducer to measure the temperature.
6. The method for propelling aquatic creatures from an underwater using high and low frequency sonic transducers of claim 1 wherein the low frequency sonic transducer and the high frequency sonic transducer are mounted on a mounting frame of adjustable height.
7. A system for driving away underwater creatures by using a high-frequency and low-frequency sound wave transducer is characterized by comprising a forebay (2) connected with a water intake culvert pipe (1), a water outlet of the forebay (2) is connected with a sewage discharge grid (3), an outlet of the sewage discharge grid (3) is connected with a rotary filter screen (4), a water outlet end of the rotary filter screen (4) is connected with a siphon well (7) through a circulating pump (5) and a condenser (6), wherein set up mounting bracket (21) in forebay (2), be provided with high frequency sound wave transducer (22) that low frequency sound wave transducer (23) and array set up on mounting bracket (21), the both sides of forebay (2) all are provided with mount (24), all are provided with motor (25) and leading wheel (26) on mount (24), wire rope (27) are connected respectively at the both ends of mounting bracket (21), both ends wire rope (27) all are connected with motor (25) that correspond the end through leading wheel (26) that correspond the end.
8. The system for driving away underwater creatures with high and low frequency acoustic wave transducers according to claim 7, characterized in that the high frequency acoustic wave transducer (22) and the low frequency acoustic wave transducer (23) on the mounting frame (21) are connected with the control cabinet (29) by means of electric cables (28).
9. System for driving away underwater living beings using a high and low frequency acoustic wave transducer according to claim 8, characterized in that said control cabinet (29) comprises at least a control module, a signal generator and a power amplifier connected to each other.
10. The system for driving away underwater creatures by using the high-low frequency acoustic wave transducer according to the claim 9, characterized in that a temperature sensor (8) is arranged in the cavity of the vibrator of the low frequency acoustic wave transducer (23), and the working temperature of the low frequency acoustic wave transducer (23) is tested by the temperature sensor (8); the top of the mounting rack (21) is provided with a liquid level meter (9) which is connected with a control module in a control cabinet (29) through a temperature sensor (8) and the liquid level meter (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911030961.6A CN110963545A (en) | 2019-10-28 | 2019-10-28 | Method and system for driving underwater creatures away by using high-frequency and low-frequency acoustic wave transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911030961.6A CN110963545A (en) | 2019-10-28 | 2019-10-28 | Method and system for driving underwater creatures away by using high-frequency and low-frequency acoustic wave transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110963545A true CN110963545A (en) | 2020-04-07 |
Family
ID=70029917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911030961.6A Pending CN110963545A (en) | 2019-10-28 | 2019-10-28 | Method and system for driving underwater creatures away by using high-frequency and low-frequency acoustic wave transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110963545A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115304124A (en) * | 2022-08-17 | 2022-11-08 | 广州市市政工程设计研究总院有限公司 | Method for preventing and treating biofouling of mactra veneriformis in source water conveying system |
| CN116581067A (en) * | 2023-07-12 | 2023-08-11 | 北京东方金荣超声电器有限公司 | Control method of megasonic system based on wet processing of device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1556051A (en) * | 2003-12-31 | 2004-12-22 | 清华大学深圳研究生院 | Method of using ultra xonic wave to quickly remove algae in water plant raw water |
| CN101817571A (en) * | 2010-04-21 | 2010-09-01 | 苏州市华兴天和科技有限公司 | Variable frequency type ultrasonic algae remover |
| CN101817572A (en) * | 2010-04-28 | 2010-09-01 | 南京工业大学 | Ultrasonic sterilizing and algae removing method for industrial circulating cooling water system |
| CN102344184A (en) * | 2011-07-15 | 2012-02-08 | 水利部南京水利水文自动化研究所 | Multi-frequency supersonic wave algae removing equipment |
| CN106857492A (en) * | 2017-02-22 | 2017-06-20 | 岭东核电有限公司 | A kind of marine growth for nuclear power plant's intake expels system |
| US20170320756A1 (en) * | 2016-05-03 | 2017-11-09 | Antonio Trigiani | Ultrasonic algae control |
| CN212127603U (en) * | 2019-10-28 | 2020-12-11 | 南京常荣声学股份有限公司 | System for driving underwater creatures away by using high-low frequency acoustic wave transducer |
-
2019
- 2019-10-28 CN CN201911030961.6A patent/CN110963545A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1556051A (en) * | 2003-12-31 | 2004-12-22 | 清华大学深圳研究生院 | Method of using ultra xonic wave to quickly remove algae in water plant raw water |
| CN101817571A (en) * | 2010-04-21 | 2010-09-01 | 苏州市华兴天和科技有限公司 | Variable frequency type ultrasonic algae remover |
| CN101817572A (en) * | 2010-04-28 | 2010-09-01 | 南京工业大学 | Ultrasonic sterilizing and algae removing method for industrial circulating cooling water system |
| CN102344184A (en) * | 2011-07-15 | 2012-02-08 | 水利部南京水利水文自动化研究所 | Multi-frequency supersonic wave algae removing equipment |
| US20170320756A1 (en) * | 2016-05-03 | 2017-11-09 | Antonio Trigiani | Ultrasonic algae control |
| CN106857492A (en) * | 2017-02-22 | 2017-06-20 | 岭东核电有限公司 | A kind of marine growth for nuclear power plant's intake expels system |
| CN212127603U (en) * | 2019-10-28 | 2020-12-11 | 南京常荣声学股份有限公司 | System for driving underwater creatures away by using high-low frequency acoustic wave transducer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115304124A (en) * | 2022-08-17 | 2022-11-08 | 广州市市政工程设计研究总院有限公司 | Method for preventing and treating biofouling of mactra veneriformis in source water conveying system |
| CN116581067A (en) * | 2023-07-12 | 2023-08-11 | 北京东方金荣超声电器有限公司 | Control method of megasonic system based on wet processing of device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212127603U (en) | System for driving underwater creatures away by using high-low frequency acoustic wave transducer | |
| CN110963545A (en) | Method and system for driving underwater creatures away by using high-frequency and low-frequency acoustic wave transducer | |
| CN211322458U (en) | Environment-friendly live pig breeding equipment | |
| WO2017045394A1 (en) | Fully automatic flushing and suction low-back-pressure filter | |
| CN107583886A (en) | Structural lumber cleaning drying device | |
| KR101624118B1 (en) | Water purification apparatus having multistage model | |
| CN202844692U (en) | Filter before pumping | |
| CN214252249U (en) | Online water quality monitoring sensor cleaning system | |
| CN201214636Y (en) | Algae removal apparatus | |
| CN201268597Y (en) | Pipeline type ultrasonic algae removing reactor | |
| CN1837090A (en) | Biological treatment device for multilayer drawer type cultural water | |
| CN203333358U (en) | Floating type suction cavitation combination ozone water processing device | |
| CN101580289B (en) | Semiconductor, ultraviolet and ultrasonic combined water treatment device | |
| CN206410917U (en) | A kind of ultrasonic wave root system cleaning machine | |
| CN212403553U (en) | Simulation device for physically killing fouling organisms | |
| CN209736211U (en) | Ultrasonic cleaning equipment for aquaculture drinking line | |
| CN210796171U (en) | Fish dung and sewage concentration device for fish culture by circulating water and dung and sewage concentration and recycling system | |
| CN2674086Y (en) | Equipment for scale-removing, scale-proof and sterilizing for oil field waste water re-injection treatment system | |
| CN110357330A (en) | A kind of ultrasound sewage nitrogen removing device | |
| CN204848318U (en) | Lake water density adjustment device | |
| CN220351831U (en) | Breed effluent treatment plant | |
| CN201411398Y (en) | Semiconductor ultraviolet ultrasonic united water treating device | |
| CN204848316U (en) | Reservoir water density adjustment device | |
| CN204848317U (en) | Reservoir water density adjustment device | |
| CN214936790U (en) | Breed sewage treatment device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |