Safety valve stroke detection device

• Main Authors: LI WENCHANG, MAO ZHIGUO, WANG YAHUI, WEI BAOCUN
• Format: Patent
• Language: Chinese; English
• Published: 22.07.2022
• 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 utility model discloses a large-caliber safety valve stroke detection device, which comprises a base, a liftable portal frame is arranged on the top surface of the base, the top surface of the portal frame is parallel to the top surface of the base, a hydraulic cylinder is fixedly arranged on the portal frame, and a push rod of the hydraulic cylinder slides downwards and extends into the portal frame. The base is detachably connected with a vertically-arranged telescopic connecting rod, the bottom end of the connecting rod is sleeved with a connecting sleeve used for being connected with a valve rod of the safety valve in a threaded mode, a vertically-upward distance sensor is arranged at the position, close to the top of the connecting sleeve, of the outer side wall, and a channel allowing the connecting sleeve to penetrate through is vertically formed in the base in a penetrating mode. And a programmable controller connected with the hydraulic cylinder and the portal frame is arranged. The safety valve