A non-destructive measuring device for non-metallic pipe surface temperature

Abstract

The invention discloses a non-destructive measuring device for the surface temperature of a non-metallic pipe, which belongs to the technical field of non-metallic pipe detection. The temperature measuring ring includes a plurality of uniformly distributed flexible temperature measuring blocks, an elastic connecting belt is connected between two adjacent flexible temperature measuring blocks, a support seat is placed on the outer wall of the non-metallic pipe main body, and a support seat is fixedly connected to the support seat. A control box, a stepper motor is installed on the top of the control box, a drive wheel is fixedly connected to the power output end of the stepper motor, a drive belt is connected between the drive wheel and the temperature measuring ring, and a drive belt is fixedly connected to the outer wall of the flexible shell. Matching friction layer, the temperature measuring ring of this solution can adjust the overall length and size by stretching and splicing, so as to adapt to the temperature measurement of non-metallic pipes of different sizes and shapes, and the temperature measuring ring is attached to the outer wall of the pipe as a whole, which is convenient for disassembly Pack.

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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