An in-situ monitoring device for seawater stray current

Abstract

The invention provides a seawater stray current in-situ monitoring device and belongs to the technical field of stray current monitoring. The monitoring device comprises a seal body, a measuring electrode system for obtaining stray current information, an upper computer system arranged above the water surface and used for displaying the stray current information of a monitoring region in real time, and a test pile. The seal body is internally provided with a single-chip microcomputer microcontroller, a storage device, a power supply module, a timing clock and a circuit conditioning module, wherein the power supply module, the timing clock and the circuit conditioning module are connected with the single-chip microcomputer microcontroller; the measuring electrode system is connected with the circuit conditioning module in the seal body through a multi-core cable; the upper computer system is internally provided with software developed based on Labview; the upper computer system is connected with the single-chip microcomputer microcontroller in the seal body through a cable; the single-chip microcomputer microcontroller realizes in-situ monitoring and recording of measurement data ofthe stray current according to a program set by the built-in software of the upper computer system; and the test pile is connected with the seal body and the measuring electrode system and is fixed to the bottom of a sea area to be monitored. The device realizes online monitoring and long-term and in-situ recording of relevant data of the stray current in the sea area.

Description

technical field [0001] The invention relates to the technical field of stray current monitoring, in particular to an in-situ monitoring device for seawater stray current. Background technique [0002] Stray current refers to a kind of current that does not move according to the prescribed path due to the influence of external conditions. For example, in the electrical high-voltage test, DC leakage or DC withstand voltage test, because the high-voltage part has capacitance to the ground, so There is current flowing through this capacitor. Due to the grounding and leakage of various electrical equipment such as electrified railways, mines, and factories, it is easy to form a stray current cycle in the soil. When it enters the pipeline through a certain part of the buried pipeline, and after moving a certain distance in the pipeline, it leaves the pipeline and returns to the soil. Corrosion occurs where these currents leave the pipeline, also known as stray current corrosion. ...

AI Technical Summary

Problems solved by technology

This is also applicable to the seawater environment. Two high-precision reference electrodes are used to measure the potential difference between two points in different directions. However, unlike the soil environment, there is no fixed fulcrum in seawater, and the hand-held probe is easily affected by waves. Solve the problem of fixing the measuring electrodes in the sea area to be monitored to obtain stable and reliable data

Images