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Method and system for expelling underwater organisms by high-low frequency acoustic wave transducer

A sound wave transducer and low-frequency sound wave technology, applied in chemical instruments and methods, seawater treatment, water/sewage multi-stage treatment, etc., can solve problems such as the influence of power plant circulating water system operation, and achieve the effect of ensuring safe operation

Pending Publication Date: 2020-04-07
NANJING CHANGRONG ACOUSTIC INC +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the impact of microorganisms on the operation of the circulating water system of the power plant, and to provide a method and system for driving away underwater organisms by using high and low frequency sound wave transducers

Method used

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  • Method and system for expelling underwater organisms by high-low frequency acoustic wave transducer
  • Method and system for expelling underwater organisms by high-low frequency acoustic wave transducer
  • Method and system for expelling underwater organisms by high-low frequency acoustic wave transducer

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Embodiment 1

[0035] This embodiment provides a method for driving away underwater organisms by using high and low frequency acoustic transducers. Specifically, a low frequency acoustic transducer and a high frequency acoustic transducer are arranged in the water body to be driven away along the moving direction of the underwater organisms. Use the low-frequency acoustic transducer to drive out fish in the water body, use the high-frequency acoustic transducer to kill the microorganisms that are not expelled by the low-frequency acoustic transducer, and remove microbial debris through filtration to keep the water flowing clean. 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 usage environment. In order to better play the repelling effect, the high-frequency acoustic wave transducer can adopt the mode of array setting, and the frequency range of the sound wave is that the frequency r...

Embodiment 2

[0038]This embodiment provides a system for driving away underwater organisms using high and low frequency sound wave transducers. The system is applied in the circulating water system of a power plant to drive out underwater organisms, as follows:

[0039] Such as figure 1 and figure 2 As shown, it includes a forebay 2 connected to a water intake culvert pipe 1, the water outlet of the forebay 2 is connected to the sewage grid 3, the outlet of the sewage grid 3 is connected to the rotary filter 4, and the outlet of the rotary filter 4 is provided with a circulating pump 5 and a condenser 6 is connected to the siphon well 7, wherein a mounting frame 21 is arranged in the forebay 2, and a low-frequency acoustic wave transducer 23 and a high-frequency acoustic wave transducer 22 arranged in an array are arranged on the mounting frame 21. Both sides of the forebay 2 are provided with fixed Frame 24, motor 25 and guide wheel 26 are all provided with on the fixed frame 24, and th...

Embodiment 3

[0043] This embodiment is a further improvement on the basis of the above embodiment 2, wherein the control cabinet 29 includes at least a control module, a signal generator and a power amplifier, and a temperature sensor 8 is arranged inside the vibrator cavity of the low-frequency acoustic wave transducer 23, and the temperature sensor 8 Test the working temperature of the low-frequency acoustic wave transducer 23; the liquid level gauge 9 is arranged on the top of the installation frame 21, and the temperature sensor 8 and the liquid level gauge 9 are connected to the control module in the control cabinet 29.

[0044] In this embodiment, the control system is composed of a signal generator, a power amplifier, a temperature sensor, a liquid level gauge and a control module. The schematic diagram of the control system and the control process is shown in Figure 4 , the temperature sensor is installed inside the vibrator of the low frequency transducer to monitor the internal t...

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Abstract

The invention discloses a method and system for expelling underwater organisms by a high-low frequency acoustic wave transducer. The method includes: setting a low-frequency acoustic wave transducer and a high-frequency acoustic wave transducer in a to-be-expelled water body along the moving direction of underwater organisms, utilizing the low-frequency acoustic wave transducer to expel fish in the water body, utilizing the high-frequency acoustic wave transducer to kill microorganisms which are not expelled by the low-frequency acoustic wave transducer, and performing filtering to eliminate microorganism remains so as to maintain the flowing cleanness of the water body. According to the system, by setting a forebay connected to a water taking culvert pipe, a blowdown grid, a rotary filterscreen, a condenser, a siphon well and the like, underwater organisms including fish and tiny organisms can be effectively expelled.

Description

technical field [0001] The invention belongs to the field of transducers, and relates to a method and a system for driving away underwater organisms by using high and low frequency sound wave transducers. Background technique [0002] The cooling water of condensers in power plants along the river and seaside generally uses river water or seawater as the cooling medium, and adopts a unitary DC water supply system. In order to prevent river and sea organisms from attaching and growing in the cooling water system, thereby affecting the flow area of ​​the cooling water system, reducing the heat transfer efficiency of the condenser and causing biological corrosion, the cooling water system of the condenser must be sterilized to remove algae. [0003] The commonly used treatment method for seawater direct-flow cooling system is to add fungicides to drive away or kill marine organisms so as to keep the system clean; the other is to apply anti-corrosion coatings to prevent marine o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/36C02F9/08C02F103/08
CPCC02F1/36C02F1/001C02F2303/04C02F2103/007
Inventor 陈海洋顾承真张旭娇闻小明张荣初
Owner NANJING CHANGRONG ACOUSTIC INC
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