Intelligent monitoring high-precision positioning drum hoisting device and hoisting method applied by same

Abstract

The invention discloses an intelligent monitoring high-precision positioning steam pocket hoisting device and a hoisting method applied to the same. The intelligent monitoring high-precision positioning steam drum hoisting device comprises a supporting beam assembly, a hydraulic lifting assembly fixedly arranged on the supporting beam assembly, a steel strand anchored to the hydraulic lifting assembly, and a monitoring alarm assembly used for monitoring the boiler steam drum hoisting process in real time. The invention further discloses a boiler drum double-lifting-point inclined hoisting method, two sets of positioning drum hoisting devices are used for conducting double-lifting-point inclined hoisting on the boiler drum, trial hoisting is conducted before formal hoisting, and whether thedevices and related control loops work normally or not is checked; and during formal hoisting, the position of the boiler drum is monitored in real time through the monitoring and alarming assembly,and obstacle avoidance is conducted till the boiler drum is in place safely. In the hoisting process, digital intelligent monitoring can be conducted on the boiler drum, stress balance of related components is guaranteed, and the boiler drum can be safely and stably placed in place.

Description

technical field [0001] The invention belongs to the technical field of installation engineering of large-scale thermal power plants, and relates to the hoisting of boiler steam drums, in particular to an intelligent monitoring and high-precision positioning steam drum hoisting device and a hoisting method for its application. Background technique [0002] In the installation project of large-scale thermal power plants, hoists or large cranes are generally used in China to hoist the boiler steam drum into place, and after long-term research by professionals, the hoisting technology is very mature. However, with the leap-forward development of high parameters, large capacity, and multiple types of domestic and foreign thermal power plant units, the power plant system design is continuously optimized, and the layout space is gradually compressed. The steam drum, an important part of the boiler in a thermal power plant, The location is continuously improved, and the hoisting spa...

AI Technical Summary

Problems solved by technology

If the force on the relevant components is unbalanced, during the tilt adjustment and horizontal adjustment of the steam drum, the end of the steam drum will easily collide with the steel frame of the boiler to form a dangerous point due to the vertical resonance of the steam drum, and the safety and stability during the hoisting process cannot be guaranteed.

[0006] (2) Due to the uneven force, the hoisting steel strand is easy to be in a tilted state

[0007] During the inclination adjustment and horizontal adjustment of the boiler steam drum, the hoisting steel strand is difficult to ensure a relatively vertical state due to uneven force, which leads to deviations in the adjustment of the steam drum position, and the hoisting accuracy is greatly reduced, seriously Slow down the hoisting efficiency of the steam drum

[0008] (3) It is extremely difficult to adjust the real-time position of the boiler drum during hoisting

The degree of intelligence is low, the position of the boiler steam drum is judged only by naked eyes, the accuracy is difficult to be guaranteed, and command errors are prone to occur, and the position of the steam drum is incorrectly adjusted, which in turn causes the steam drum to collide with obstacles in the hoisting channel

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