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

A hydraulic generator, precise measurement technology, applied in the direction of measuring devices, measuring inclination, using optical devices, etc., can solve the problems of staff safety threats, small installation gaps, manpower and time consumption, etc., to improve work efficiency and Quality, avoiding the collision of lifting parts, and reducing the effect of accidental injury

Inactive Publication Date: 2017-08-25
YUNFENG POWER PLANT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

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

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Embodiment Construction

[0017] see figure 1 , the names of the components are as follows: hoisted part 1, angle monitoring and alarm unit 2, displacement monitoring and alarm unit 3, background analysis and monitoring system 4.

[0018] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so that the protection scope of the present invention can be defined more clearly:

[0019] Accurate position measurement and alarm method during installation, disassembly and hoisting of large parts of hydro-generator:

[0020] (1) Real-time acquisition and alarm unit of the space state of the hoisting parts

[0021] (1) Angle monitoring and alarm unit

[0022] The inclination angle monitoring and alarm unit is powered by batteries, adopts an ultra-low power consumption design, and uses a high-precision inclination se...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/02G01C9/00
CPCG01B11/026G01C9/00
Inventor 孙丽萍宋君辉李继成单信强周玉萍邢立强成方勇杨玉英
Owner YUNFENG POWER PLANT
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