Wall thickness detection device based on spheroidal graphite cast pipe

Abstract

The invention discloses a spheroidal graphite cast pipe-based wall thickness detection device, which comprises a rack, an X-axis mechanism, a Y-axis mechanism, a trolley mounting rack, a four-wheel passive trolley, a thickness gauge water tank and a control system, and is characterized in that the X-axis mechanism is a gear rack transmission mechanism, the X-axis mechanism is horizontally mounted on the rack, the Y-axis mechanism is a screw rod structure, the Y-axis mechanism is mounted on the X-axis mechanism, and the control system is connected with the rack. The Y-axis mechanism is vertically orthogonal to the X-axis mechanism, the trolley mounting frame is mounted on the Y-axis mechanism, and the four-wheel passive trolley is fixedly connected with the trolley mounting frame; the thickness gauge water tank is arranged on the rack, an outlet of the thickness gauge water tank is connected with the four-wheel passive trolley through a coupling agent output pipeline, and control modules of the X-axis mechanism, the Y-axis mechanism, the four-wheel passive trolley and the thickness gauge water tank are all connected with the control system through control cables. The wall thickness detection device has the advantages of being simple in structure, easy to machine and assemble, high in adaptability, low in maintenance cost, good in shock resistance and the like.

Description

technical field [0001] The invention relates to the technical field of pipeline detection, in particular to a wall thickness detection device based on a ductile cast pipe. Background technique [0002] Ductile iron pipes are mostly used for infusion and water pipelines. To withstand high pressure, they need to have good mechanical properties. If the wall thickness of ductile iron pipes is less than the safe wall thickness, the pressure bearing capacity will be reduced, which will cause pipe burst events. occur. Therefore, it is very important to ensure the safety of various pipelines. The American Petroleum Institute's standard stipulates that oil pipes are to be measured for full length thickness before being produced, processed and put into service. my country's demand for measuring the full length of ductile cast pipes is becoming more and more urgent. Ultrasonic detection technology has the advantages of full wall thickness detection and no need to remove the covering...

AI Technical Summary

Problems solved by technology

Due to the technological characteristics of the surface of the ductile cast pipe, there are a large number of concave and convex points on the outer cylindrical surface, which will interfere with the detection signal and even cause the loss of the measurement signal. The production process of centrifugal casting cannot guarantee its shape after cooling. Therefore, how does the measuring device ensure that it can adapt to the complex spatial surface of the detected pipeline in real time during online real-time detection, ensure that the detector and the surface of the detected pipeline are kept perpendicular and the distance is constant, and obtain as many effective signals as possible, and Reasonable data analysis and processing is the key to accurate detection

Images