Position accurate measurement and alarm method in hydraulic generator large component installation, disassembly and hoisting processes

Abstract

The invention discloses a position accurate measurement and alarm method in hydraulic generator large component installation, disassembly and hoisting processes. According to the method, the tile angle and a distance deviating from a predetermined position of a hoisted piece are monitored in real time through an angle monitoring alarm unit installed to a hoisted piece body and multiple displacement monitoring alarm units which are uniformly distributed outside the hoisted piece body in a hoisting field, monitoring data is uploaded to a background analysis monitoring system in real time, when the deviation of the hoisted piece from a predetermined position or the tile angle exceeds a set value, the horizontal and angle monitoring alarm unit of the hoisting field and the background analysis monitoring system emit alarm instructions at the same time, a correct correction strategy is given to assist hoisting operation personnel to timely correct a hoisting operation, and the collision of the hoisted piece is avoided. By applying the method, the number of staff in the hoisting process of large components can be greatly reduced, accidental injury of people caused by improper operations is reduced, and the working efficiency and quality of the hoisting are effectively improved.

Description

technical field [0001] The invention relates to the field of hydroelectric generators, in particular to a method for accurate position measurement and alarm during installation, disassembly and hoisting of large parts of hydroelectric generators. Background technique [0002] During the installation process of overhaul and renovation, hydraulic turbines need to be pre-assembled and adjusted, which involves lifting and transporting large parts such as rotors and runners. Due to the weight of these parts, they vary from tens to hundreds of tons. etc., and the installation gap is small, a slight rubbing during the hoisting process will cause great damage to the hoisting parts and fixing parts. The process often requires as many as dozens of staff to cooperate, and the monitoring and manual alarm between the rotor and the stator cause a lot of manpower and time consumption, and pose a greater threat to the safety of the staff. At the same time, due to Due to the slow speed of m...

AI Technical Summary

Problems solved by technology

[0002] During the installation process of overhaul and renovation, hydraulic turbines need to be pre-assembled and adjusted, which involves lifting and transporting large parts such as rotors and runners. Due to the weight of these parts, they vary from tens to hundreds of tons. etc., and the installation gap is small, a slight rubbing during the hoisting process will cause great damage to the hoisting parts and fixing parts. The process often requires as many as dozens of staff to cooperate, and the monitoring and manual alarm between the rotor and the stator cause a lot of manpower and time consumption, and pose a greater threat to the safety of the staff. At the same time, due to Due to the slow speed of manual observation and alarm and low accuracy, it is also urgent to improve this traditional working method

Images