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Turbine rotor online dynamic balance disc active adjustment system

A steam turbine rotor and regulating system technology, applied in static/dynamic balance testing, machine/structural components testing, instruments, etc., can solve problems such as complicated adjustment methods and large structures, avoid frequent switch-on and test weights, and improve The effect of supporting precision and simple structure

Pending Publication Date: 2019-03-08
NORTH HUAJIN CHEM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an active adjustment system for the steam turbine rotor on-line dynamic balance disk, which solves the problems of the original dynamic balance device with large structure and complex adjustment methods

Method used

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  • Turbine rotor online dynamic balance disc active adjustment system
  • Turbine rotor online dynamic balance disc active adjustment system
  • Turbine rotor online dynamic balance disc active adjustment system

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Embodiment Construction

[0012] In order to make the purpose, content and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail.

[0013] The invention provides an active adjustment system for an online dynamic balance disk of a steam turbine rotor, which includes a dynamic balance block 1, an electromagnetic strip 6 and a radial sliding bearing system 2;

[0014] The steam turbine rotor system mainly consists of a rotor 3 and moving blades, a main shaft, and an impeller arranged on the rotor; the radial sliding bearing system 2 mainly consists of a radial sliding bearing 10, an oil injection nozzle 8, a cooling water nozzle, and a non-contact temperature sensor 11 , Angular acceleration vibration displacement sensor 7 is made up; Radial sliding bearing 10 comprises bearing housing, bearing cover, the upper and lower bearing bushes that split and double-ended stud, positioning pin;

[0015] The positioning pin is m...

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Abstract

The invention discloses a turbine rotor online dynamic balance disc active adjustment system. The system comprises dynamic balance blocks, electromagnetic strips, a radial sliding bearing, non-contacttemperature sensors and angular acceleration vibration displacement sensors; a turbine rotor is surrounded by the radial sliding bearing and rotates in the bearing under oil film lubrication protection. The system of the invention has the advantages of simple structure, high practicability, high reliability, automaticity, high precision and dynamic feedback. When a rotor system suffers a dynamicbalance problem, the dynamic balance blocks with electromagnetic forces and the circumferential electromagnetic strips laid at the innermost surface of the slide way of the slot-in-slot structure of ajournal and the innermost surface of the slide way of the slot-in-slot structure of the inner ring of the bearing attract each other through the unbalanced signals of a high-speed rotation rotor component which are fed back by the circumferentially-arranged angular acceleration vibration displacement sensors, and the dynamic balance blocks start working; and the dynamic balance blocks slide in aclosed slide way formed by the slot-in-slot structure of the inner ring of the bearing and the slot-in-slot structure of the rotator journal so as adjust the overall dynamic balance of the system.

Description

technical field [0001] The invention belongs to the field of steam turbine rotor dynamic balance, and in particular relates to a steam turbine rotor online dynamic balance disc active adjustment system. Background technique [0002] With the rapid development of modern science and technology, all walks of life have higher and higher requirements for product stability and performance. The typical problem is the dynamic balance of the steam turbine rotor. The imbalance between the centrifugal force and the rotational speed generated by the rotor rotation It is proportional to the square. For high-speed rotors, even a small amount of unbalance may generate a very large unbalanced centrifugal force, causing excessive vibration of the steam turbine, bearing wear and other failures, and then causing serious consequences. Therefore, the unbalance of the high-speed rotor system seriously affects the working capacity and service life of the steam turbine unit. [0003] The working p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M1/36
CPCG01M1/36
Inventor 刘傲翔齐国滨王力新杨仪刚周影志刘玉健陈文双王建海周旭潭王万波刘绍宏邵洪锋
Owner NORTH HUAJIN CHEM IND CO LTD
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