System and method for fast measuring perimeter deformation quantity of horizontal type strain strengthening vessel

Abstract

The invention relates to the measurement technology and aims to provide a system and method for fast measuring the perimeter deformation quantity of a horizontal type strain strengthening vessel. The system for measuring the perimeter deformation quantity of the horizontal type strain strengthening vessel comprises a steel wire rope, a base, a support, a measuring platform, a clamp, a displacement sensor, a weight piece, two pulleys and a lifting mechanism. The method for measuring the perimeter deformation quantity of the horizontal type vessel comprises the steps that the edges of the two pulleys are closely attached to the wall of the vessel, the steel wire rope is utilized for winding around the horizontal vessel to be measured, water filling or pressurizing is carried out to enable the vessel to be expanded according to the measurement requirement, the displacement sensor is used for recording displacement data of the end portion of the steel wire rope, and the perimeter deformation quantity of the horizontal type vessel to be measured is obtained. According the system and the method, the perimeter deformation quantity of a barrel of the horizontal type strain strengthening vessel can be measured fast, automatically and accurately, manual number reading is not needed, the production efficiency is improved, the labor cost is reduced, errors caused by manual number reading are avoided, and the system and the method have the advantages of being high in precision and efficiency.

Description

technical field [0001] The invention relates to measurement technology, in particular to a system and method for quickly measuring the peripheral deformation of a horizontal strain strengthening container. Background technique [0002] The strain strengthening technology specifically implements the strain strengthening of the container by overpressure processing the inner container of the austenitic stainless steel cryogenic container after forming, and maintaining the pressure under the strengthening pressure for a period of time, so that the container is fully deformed. The holding time of the strengthening process is usually determined by comparing the strain rate at the maximum deformation point of the circumference of each cylinder section with the requirements of relevant standards. Therefore, it is very necessary for the strain strengthening process to quickly and accurately measure the strain at the maximum deformation point of the circumference of each cylinder sect...

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Problems solved by technology

[0003] At present, the circumference deformation of the cylinder is usually measured by coiling a tape measure or attaching a strain gauge on the cylinder, which brings inconvenience to the actual production: for the former, manual reading is required, and with the increase in the number of cylinder sections and The reduction of measurement interval time will increase the probability of error and labor cost. In addition, manual reading needs to be close to the container with pressure exceeding the design pressure, which has certain safety risks; for the latter, although automatic and accurate measurement has been realized, the resistance strain The gage cannot be reused, so the measurement cost is increased. In addition, because the installation of the strain gage is time-consuming and requires high installation accuracy, the efficiency of this method is low

[0004] China Patent No. 2001120544850 "A Circumferential Change Tester for Circular Pressure Vessels", although it provides a measurement method for the circumference of the pressure vessel cylinder, the instrument cannot perform real-time, rapid, automatic and accurate measurement of the circumference change of the vessel cylinder , so the safety hazards caused by manual reading cannot be avoided

It can be seen from this that, for the current existing measurement technologies and methods, either the manual reading method is used for measurement, and the automatic measurement of the perimeter deformation of the horizontal strain-strengthened vessel cannot be realized, and there are considerable safety hazards; Either use strain gauges for measurement, but the strain gauges cannot be reused, and the installation process is cumbersome and the cost of use is high, which limits the improvement of the automation of the strain strengthening process

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