Non-metallic pipe surface temperature nondestructive measurement device

Abstract

The invention discloses a non-metallic pipe surface temperature nondestructive measurement device, and belongs to the technical field of non-metallic pipe detection.The non-metallic pipe surface temperature nondestructive measurement device comprises a non-metallic pipe body, the non-metallic pipe body is sleeved with a temperature measurement ring, and the temperature measurement ring comprises a plurality of flexible temperature measurement blocks which are evenly distributed; an elastic connecting belt is connected between every two adjacent flexible temperature measuring blocks, a supporting base is placed on the outer wall of the non-metallic pipe body, a control box is fixedly connected to the supporting base, a stepping motor is installed at the top end of the control box, a transmission wheel is fixedly connected to the power output end of the stepping motor, and a transmission belt is connected between the transmission wheel and the temperature measuring ring. a friction layer matched with a transmission belt is fixedly connected to outer wall of flexible shell. According to the scheme, the overall length and size of the temperature measuring ring can be adjusted through stretching and splicing so that the temperature measuring ring can adapt to temperature measurement of nonmetal pipes of different sizes and shapes, and the temperature measuring ring is integrally attached to the outer wall of a pipeline and is convenient to disassemble and assemble.

Description

technical field [0001] The invention relates to the technical field of non-metallic pipe detection, in particular to a non-destructive measurement device for the surface temperature of non-metallic pipes. Background technique [0002] Non-metallic pipes have the advantages of light weight, corrosion resistance, anti-scaling, small resistance to conveying fluid, quick and easy construction, etc., and have been widely used in municipal, building water supply and drainage, gas, heating, agricultural water-saving irrigation and sewage, mine minerals Water injection, alcohol injection, oil and gas transportation, etc. in transportation and oil and gas fields. With the large-scale and widespread use of non-metallic pipes, the failure of non-metallic pipes is gradually increasing. Among them, the wear resistance of the pipe is an important index for evaluating the durability of the pipe. [0003] By selecting an effective test method and device for testing thermal fatigue, the he...

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Problems solved by technology

[0004] For the current test of non-metallic pipelines, it is usually necessary to open holes in the pipeline and then install thermocouples to obtain the temperature of the pipe wall during the experiment. However, some non-metallic pipelines have low structural strength and are not as stable as metal pipelines. Or the local structural strength decreases rapidly after slotting, and the opening position is more prone to thermal fatigue after heating, so the non-metallic pipe after opening is not easy to accurately reflect the actual working performance of the pipe, so a non-destructive measurement of pipe wall temperature is needed device

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