Pipeline flexible connecting device and using method thereof

Abstract

The invention provides a pipeline flexible connecting device which is composed of at least one set of pipeline flexible connecting device unit. Each set of device unit is formed by no less than two layers of mutually-sleeved metal corrugated pipes and connecting members at two ends, and the pipeline flexible connecting device is characterized in that at least one closed space is formed among the mutually-sleeved metal corrugated pipes, at least one temperature is arranged on walls of a metal corrugated layer or a reinforcing layer of the pipeline flexible connecting device to monitor temperature during operating, and leakage alarming of the pipeline flexible connecting device is realized by judging obtained temperature change information. The pipeline flexible connecting device is safe in operating, low in cost, long in service life, high in strength, small in heat waste and good in flexible controllability and monitoring controllability.

Description

technical field [0001] The invention relates to a pipeline flexible connection device, in particular to a pipeline flexible connection device in the field of solar heat utilization. Background technique [0002] Hose is an important connecting component in engineering technology, which is composed of flexible pipes and joints. Used as compensating elements, sealing elements, connecting elements and shock absorbing elements in various gas transmission, infusion pipeline systems and length, temperature, position and angle compensation systems, used in aerospace, petrochemical, mining electronics, machinery shipbuilding, medical treatment Health, textile electronics, energy construction and other fields. [0003] At present, in the existing commercialized trough collector system, two parallel collector terminals need to be connected in series through flexible pipelines to complete a heat collecting working medium or the output terminal of a single heat collector transports th...

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Problems solved by technology

[0003] At present, in the existing commercialized trough collector system, two parallel collector terminals need to be connected in series through flexible pipelines to complete a heat collecting working medium or the output terminal of a single heat collector transports the heated working medium into the branch pipe. Due to the particularity of the trough tracking, the heat collector changes with the position of the sun, but the relative position of the branch pipe is fixed. Therefore, the two need to be connected to each other through a flexible pipeline connection device. The existing flexible connection is designed as a three-dimensional connection spherical movable joint or a bellows structure. The former has a complex structure, is inconvenient to produce and install, and is expensive. The possibility of leakage cannot be avoided; the latter is connected by bellows. Although the structure is simple and easy to install, it has the possibility of sudden leakage. rupture, a sudden large-scale leakage occurs, which seriously affects the safety of operation; at the same time, it is difficult for the two to achieve good heat preservation during the work process, and it is impossible to control the heat loss of the system well

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