Sacrifice flange

Abstract

The invention discloses a sacrifice flange which comprises a flange body, a piston mechanism and a detection device. The piston mechanism comprises a shell and a piston part. A butt joint hole communicating with a failure hole is formed in one end of the shell, and an inner cavity used for containing the piston part is formed in the other end of the shell. The butt joint hole communicates with the inner cavity. The detection device is connected with the shell. The shell of the piston mechanism is arranged on the failure hole of the flange body. When the flange body is not in failure yet, the failure hole does not communicate with high-pressure water in a pipeline, the piston mechanism is not subjected to the pressure effect of the water pressure, and the displacement action cannot happen; and when the flange body fails, the high-pressure water in the pipeline enters the inner cavity of the shell through the failure hole, the displacement action happens to the piston part under push of the water pressure, the detection device obtains the displacement action and converts the displacement action into an electronic signal, and the sacrifice flange can be better maintained and replaced on time.

Description

technical field [0001] The invention relates to the technical field of ship fittings, in particular to a sacrificial flange. Background technique [0002] During the operation of the ship, most of the heat generated by the equipment is taken away by the seawater through heat exchange. The seawater system, as the main body of the ship’s heat exchange, is always in operation, but the seawater is highly corrosive, so seawater pipelines and piping The equipment connected to the road has become the hardest hit area of ​​corrosion. According to the summary of the quality assurance sheet of the pipeline system after the delivery of the ship, most of them are corrosion of the pipeline. At the same time, there are traces of corrosion on some equipment interfaces. Advanced measures such as paint and internal plastic coating to treat the inner surface of the pipeline still cannot prevent seawater from corroding the pipeline and equipment. In this case, the use of sacrificial anodes to...

AI Technical Summary

Problems solved by technology

This signal sending method can only be known through the crew inspection, and cannot be connected to the information alarm system

This is not conducive to the continuous and stable protection of the protected equipment, and is not conducive to the realization of automation of system operation and maintenance. It may even cause serious leakage of the pipeline due to excessive corrosion of the sacrificial flange.

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