New prefabricated insulation pipe and its leak detection and alarm system

Abstract

The invention provides a novel prefabricated heat preservation pipe and a seepage detection alarm system used for the same. The seepage detection alarm system is arranged in a heat preservation layer adjacent to the heat preservation pipe and comprises multiple sensor line pipelines, multiple feedback line pipelines and a control center, wherein the multiple sensor line pipelines are distributed at multiple positions of the steel pipe, an inner sleeve corresponding to each feedback line pipeline is located in one sensor line pipeline, the sensor line pipelines are connected with the feedback line pipelines in a one-to-one corresponding mode, and each feedback line pipeline is in communication with the control center. The seepage detection alarm system can acquire heat support data of all positions of the steel pipe, feed the data back to the control center, provide the data to an administrator for checking, analysis and positioning of the steel pipe position where seepage occurs, hidden dangers are prevented before dangers emerge, and safety reliability is improved.

Description

Technical field [0001] The invention relates to the technical field of thermal pipelines, in particular to a new type of prefabricated thermal insulation pipe and a leakage detection and alarm system used for the same. Background technique [0002] The prefabricated insulation pipe is made of polyurethane foam plastic as the insulation material, and high-density polyethylene as the outer shell of the insulation pipe. Because this kind of insulation pipe has better waterproofness, it can be used in areas with high groundwater level and moist soil. There are two new types of prefabricated thermal insulation pipes: one is the prefabricated thermal insulation pipe with the thermal insulation structure in the form of polyethylene, and the other is the prefabricated thermal insulation pipe with the tube-in-tube form. At present, these two types of prefabricated thermal insulation pipes have been mass-produced and are widely used in urban heating pipe networks and industrial and mining...

AI Technical Summary

Problems solved by technology

[0004] First, once the water leaks after the backfill of the pipeline is laid, it is difficult to find the leak point, and the degree of maintenance is quite difficult;

[0005] Second, the service life is short, generally 30 years

[0006] After the direct-buried polyurethane insulation pipe is put into use, due to its structural characteristics and high cost, any small damage (such as the inside of the steel pipe and the outside of the HDPE outer casing) will lead to expensive maintenance costs, thereby reducing revenue and pipe life

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