An online monitoring system for rubber lining integrity

Abstract

The invention relates to an on-line rubber lining integrality monitoring system. The on-line rubber lining integrality monitoring system is mounted in a plurality of pipes which are connected by flanges; rubber linings are mounted on the inner walls of the pipes; and the on-line rubber lining integrality monitoring system comprises a plurality of first sensors which are embedded in the rubber linings and are arrayed in the direction of the axes of the pipes and a plurality of second sensors which are mounted among the flanges and extend into the pipes. The first sensors which are arrayed in the direction of the axes of the pipes are arranged in the rubber linings, the second sensors which extend into the pipes are mounted among the flanges, rubber lining integrality is monitored by the first sensors, rubber lining ageing states are monitored by the second sensors, so that the rubber linings can be monitored in an on-line manner on two dimensions, the ageing state and the integrity state of the pipes with the rubber linings are acquired, and repairing of the pipes with the rubber linings can be finished in the period of heavy repair, so that the operation and maintenance costs of a power plant are reduced.

Description

technical field [0001] The invention belongs to the field of pipeline detection equipment, and in particular relates to an online monitoring system for rubber lining integrity. Background technique [0002] Because of its good corrosion resistance, reliability, processability and repairability, rubber lining (i.e. rubber lining) is used in nuclear power plants where the ambient temperature is not high (<85°C) and the medium is highly corrosive (seawater environment and acid-base salt environment) has been widely used. Rubber lining, like other materials, faces aging failure problems during service. Once the aging failure of the rubber lining occurs, such as cracking and falling off of the rubber lining, the seawater or acid-base salt corrosive medium will pass through the rubber lining and directly contact the metal substrate, resulting in rapid corrosion of the metal substrate and even corrosion perforation. , leakage and other events. In addition, when the rubber lin...

AI Technical Summary

Problems solved by technology

Once the aging failure of the rubber lining occurs, such as cracking and falling off of the rubber lining, the seawater or acid-base salt corrosive medium will pass through the rubber lining and directly contact the metal substrate, resulting in rapid corrosion of the metal substrate and even corrosion perforation. , leakage and other events

In addition, when the rubber lining ages to a certain extent, it is prone to large-scale shedding, and the peeled rubber lining layer may block equipment such as pipes, valves, pumps, filters, and heat exchangers, resulting in the failure of the functions of these equipment. The failure of equipment will bring a series of safety problems

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