Electric melting pipe with non-metal pipeline leakage monitoring function and machining method thereof

Abstract

The invention relates to the field of pipeline leakage monitoring, and aims to provide an electric melting pipe with a non-metal pipeline leakage monitoring function and a machining method thereof. The electric melting pipe comprises a resistance wire and binding posts, the binding posts are arranged in tubular sheaths, the two sheaths are correspondingly provided with sealing elements, and the sheaths and the sealing elements are made of insulating materials; and one sealing element is internally provided with a built-in wire used for connecting the binding posts and an external wire, and anexternal wire access port; a part of the resistance wire is exposed in an inner cavity of the electric melting pipe and is used as an internal monitoring electrode. The novel electric melting joint provided based on the resistance monitoring principle can be used for monitoring fluid medium leakage generated in a non-metal pipeline system, and the problem that non-metal pipeline leakage is difficult to monitor is solved. Complex detection equipment is not needed, the test method is easy to implement, and the cost of non-metal pipeline leakage monitoring is reduced. And the monitoring electrodeand the binding posts are fused into a whole through welding, so that the sealing performance and the component strength are better.

Description

technical field [0001] The invention relates to the field of pipeline leakage monitoring, in particular to an electrofusion pipe fitting with a non-metallic pipeline leakage monitoring function and a processing method thereof. Background technique [0002] Pipelines are the core facilities for energy and water transportation, and are the lifelines for national economic development and human survival. With the adjustment of my country's energy structure and the acceleration of urbanization, non-metallic pipelines are widely used in major national projects, such as high-pressure jumper pipes in tidal flats and shallow sea oil industry, and gas transmission pipelines in urban gas pipeline networks. , as a cooling water circulation pipe in nuclear power plants, and it is also an ideal substitute for oil well water injection pipes and shallow sea medium and low pressure marine hoses. my country has become the country with the largest output and demand of non-metallic pipes, and t...

AI Technical Summary

Problems solved by technology

This method has been successfully applied in metal pipelines, but in non-metal pipelines, due to the fast attenuation speed of sound waves in non-metal (plastic) materials, the propagation distance is short, and the system construction cost is high.

Moreover, this method is greatly disturbed by external noise and produces many false alarms, so the acoustic wave detection technology cannot be applied to the leakage of non-metallic pipelines

In optical fiber detection technology, it is difficult to decouple the optical fiber signal due to the influence of temperature and strain factors, and the optical fiber material is easy to break, requiring special maintenance, which limits its application

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