Tunnel attachment online monitoring system and method based on acoustic principle

Abstract

The invention discloses a tunnel attachment online monitoring system and method based on the acoustic principle, the system comprises an industrial personal computer, a transducer, a communication unit, a server and a client, the transducer can emit pulse sound waves to a tunnel wall and receive the pulse sound waves reflected back from the tunnel wall; the industrial personal computer sends the received pulse sound wave data transmitted by the communication unit to the server, and the server processes the pulse sound wave data according to a preset acoustic ranging method, generates a monitoring result in combination with a preset calculation model, and then sends the monitoring result to the client. According to the technical scheme, continuous observation of the tunnel attachments can be achieved, the attachment rule of tunnel organisms can be mastered easily, a foundation is laid for solving the tunnel attachment problem from the source, data obtained through monitoring of the multiple monitoring sections are more accurate, and meanwhile the monitoring cost is low, the risk is small, and the penetrability is high.

Description

technical field [0001] The invention relates to the field of nuclear power safety, in particular to an on-line monitoring system and method for tunnel attachments based on acoustic principles. Background technique [0002] The water intake tunnel of the nuclear power plant is connected by the water intake open channel of Dajin Island and the sea reservoir, and is excavated by shield tunneling. The tunnel is always full of water. Under normal circumstances, the adhesion of the tunnel wall is unknown. If the adhesion layer is too thick, it may affect the designed water intake, and there is a possibility that the adhesion will fall off and introduce foreign objects in the cold source. Usually, the observation method of underwater submersibles based on optical principles (such as AUV (Autonomous Underwater Vehicle, AUV for short), etc.) is used. Due to the discrete data, it is difficult to couple with the operating conditions of the unit, environmental parameters, etc., and the...

AI Technical Summary

Problems solved by technology

Under normal circumstances, the adhesion of the tunnel wall is unknown. If the adhesion layer is too thick, it may affect the design water intake, and there is a possibility that the adhesion will fall off and introduce foreign matter into the cold source.

The observation method of underwater submersibles based on optical principles (such as AUV (Autonomous Underwater Vehicle, AUV for short), etc.) is usually used. Due to the discrete data, it is difficult to generate coupling with the operating conditions and environmental parameters of the unit. Moreover, using The submersible observation method for tunnel monitoring is suitable for still water environments (the water gate is closed and the flow rate is 0) and is feasible in daily life, but the ROV (Remote Operated Vehicle, remote control unmanned submersible vehicle, referred to as ROV) method may have power supply if the cable is long. problem, in addition, the AUV method may have some recycling problems

In addition, the penetrating power of light under water is weak, and the occasions with large diameters may have the problem of not being able to cover a single section, which is not conducive to grasping the law of bio-fouling in tunnels to solve the problem of adhesion once and for all, and the cycle is difficult to determine, and it is impossible to achieve from the source. Solve the problem of fouling attached to the tunnel wall

[0003] The above existing problems make the water intake tunnel blocked by marine organisms or floating objects. Therefore, there is a need for an online monitoring system and method for tunnel attachments based on acoustic principles that can solve the above problems.

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