Clod/hot two-way protecting device and method for steam and pipeline

A technology for steam pipelines and protection devices, which is used in pipeline heating/cooling, pipes/pipe joints/fittings, mechanical equipment, etc., to achieve the effects of stable properties, long service life, working requirements and strong environmental adaptability

Active Publication Date: 2017-06-23
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It solves the stability problem of steam working conditions while effectively preventing steam condensation and overheating

Method used

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  • Clod/hot two-way protecting device and method for steam and pipeline
  • Clod/hot two-way protecting device and method for steam and pipeline

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Embodiment Construction

[0020] In order to make the object, technical solution and advantages of the present invention clearer, the following will further describe the embodiments of the present invention in detail in conjunction with the accompanying drawings.

[0021] Such as figure 1 As shown, a cold / heat two-way protection device for steam pipes includes a thermal insulation material layer (1), a phase change material layer (2), a memory alloy layer (3), a memory alloy wire (4), and a phase change material capsule (5). The heat insulating material layer (1) is made of a heat insulating material with extremely low thermal conductivity, and is concentrically wrapped around the steam pipe (6); the phase change material layer (2) is made of a solid with a freezing point higher than the steam condensation temperature. -Consisting of liquid phase change material, filled between the heat insulating material layer (1) and the outer wall of the steam pipe (6); the memory alloy mesh (3) is attached to the...

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Abstract

The invention discloses a clod / hot two-way protecting device and a clod / hot two-way protecting method for steam and a pipeline. The clod / hot two-way protecting device is applied to the technical field of pipeline transport and condensation and overheating prevention. The clod / hot two-way protecting device comprises a thermal insulation material layer, a phase-change material layer, a memory alloy layer, memory alloy wires and phase-change material capsules. The influence on the pipeline and the steam from an outer circumstance temperature is reduced by employing the thermal insulation material layer; the temperatures of the pipeline and the steam are kept unchanged in a low temperature environment for a long time by employing solidification heat release of the phase-change material layer, and the pipeline is prevented from being corroded by steam condensation; and an overheating phenomenon is avoided since a memory alloy net attached to the outer wall of the pipeline and the phase-change material capsules connected with the memory alloy net via the memory alloy wires undergo shrinkage deformation, the phase-change material capsules are pulled to be enriched in a heating zone, heat transfer of the heating zone is strengthened and heat is absorbed in a large amount rapidly. The steam is effectively prevented from condensing and overheating, and the problem that a steam working condition is not stable is solved.

Description

technical field [0001] The invention belongs to the technical field of simultaneously preventing condensation and overheating of transport pipelines, and in particular relates to a cold / heat bidirectional protection device and method for steam pipelines. Background technique [0002] Steam is widely used in various mechanical devices and energy transmission applications, such as aircraft carrier catapults, heating and power generation. Steam usually encounters problems such as condensation caused by heat dissipation, local overheating caused by various factors, and fluctuations in working conditions caused by condensation and overheating during transportation. Both steam condensation and overheating can cause damage to the pipeline. The fluctuation of steam working conditions will seriously affect the stability and safety of the system. It is very important to prevent steam condensation, overheating and the resulting fluctuations in operating conditions. [0003] At prese...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L53/00
CPCF16L53/00
Inventor 范利武朱子钦胡楠邵雪峰黄元凯冯飙曾轶郑梦莲俞自涛胡亚才
Owner ZHEJIANG UNIV
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