Device and method for turning main equipment automatically through nuclear island ring crane

Abstract

The invention discloses a device and method for turning main equipment automatically through a nuclear island ring crane. A trolley of the device is provided with a laser range finder used for detecting the traveling distance of the trolley. A laser reflecting plate corresponding to the laser range finder is arranged at the end of a ring crane portal frame. A hoisting distance sensor used for detecting the hoisting distance of the upper end of the main equipment is arranged on a hoisting mechanism. The device further comprises a hoisting control device and a controller. The hoisting control device is used for controlling the hoisting speed of the hoisting mechanism. The controller is used for controlling the traveling speed of the trolley according to the hoisting speed, the hoisting distance, the traveling distance and the length data of the main equipment in the main equipment turning process, so that the direction of a hoisting rope is kept identical to that of the gravity of the main equipment in the main equipment turning process. The method is used for turning the main equipment automatically through the device. Compared with the prior art, the hoisting rope is prevented from inclining when the main equipment is hoisted, and safety risks are effectively reduced.

Description

technical field [0001] The invention belongs to the field of nuclear power equipment installation. More specifically, the invention relates to a device and method for automatically turning over main equipment by using a nuclear island ring crane. Background technique [0002] At present, when installing nuclear power main equipment such as nuclear reactor pressure vessels and steam generators, ring cranes are basically used to turn over and hoist the main equipment in place. However, when the existing ring crane overturns the main equipment, it usually adopts manual control of trolley walking and manual control of the hoisting mechanism to lift one end of the main equipment. This method of manual control can easily cause the trolley to move too fast or too slow, causing the hoisting mechanism and the lifting lugs of the main equipment to not be on the same center of gravity, and the lifting rope to tilt, causing the trolley to be subjected to horizontal tension during moveme...

AI Technical Summary

Problems solved by technology

This method of manual control can easily cause the trolley to move too fast or too slow, causing the hoisting mechanism and the lifting lugs of the main equipment to not be on the same center of gravity line, and the lifting rope is tilted, so that the trolley is subjected to horizontal pulling force during the moving process. , the trolley does not slide smoothly on the track, causing the main equipment to shake greatly, and there is a certain safety risk

Images