Deformation detection device and detection method for valve body in ultralow temperature environment

• Main Authors: XIA FUMIN, FAN ZHIHE, CAI FEI, XIA ZHIKUN, CAO ERSHUAI, CHEN JINBIAO, SUN ZHANJIANG
• Format: Patent
• Language: Chinese; English
• Published: 27.05.2022
• Subjects: MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; PHYSICS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

The invention provides a device and a method for detecting the deformation of a valve body in an ultralow-temperature environment, relates to the technical field of valves, and aims to solve the technical problem that the deformation of the valve body in the ultralow-temperature environment is difficult to detect. The deformation detection device comprises a base, a liquid nitrogen soaking pool, a three-point inside micrometer and a driving assembly, the driving assembly comprises a lifting driving unit and a horizontal driving unit, the lifting driving unit comprises a first power device and a lifting pedestal, and the first power device drives the lifting pedestal to descend or ascend on the base; the horizontal driving unit comprises a second power device arranged on the lifting pedestal and a horizontal pedestal, the second power device drives the horizontal pedestal to horizontally move on the lifting pedestal, and a valve body fixing unit is arranged on the horizontal pedestal; the driving assembly is u