Dynamics characteristic experimental apparatus of heavy type gas turbine pull rod rotor

Abstract

The invention discloses a dynamic property experimental device of a pull rod rotor of a heavy-duty gas turbine, which comprises two bearing blocks that are arranged oppositely on the left and the right on the basis of an experimental platform, a pull rod rotor used for experiment is arranged between the bearing blocks, and a direct current motor is arranged outside the left bearing block, electrically connected with an electric control cabinet and connected with one end of the pull rod motor that extends out of the left bearing block through a first sleeve pipe; an electric generator is arranged outside the right bearing block and connected with the other end of the pull rod motor that extends out of the right bearing block through a second sleeve pipe; an electric eddy current displacement sensor is respectively arranged on shaft necks at the two ends of a rotating shaft of the pull rod motor that are corresponding to the left and the right bearing blocks, and the electric eddy current displacement sensor is connected with a dynamic signal collector that is connected with a computer; a speed measuring gear is respectively arranged at the shaft rear of the electric generator and the first and the second sleeve pipes, a pair of rotating speed sensors are symmetrically arranged along the diameter direction of the gears and connected with a torsional vibrometer, and the torsionalvibrometer is connected with the dynamic signal collector by a signal.

Description

technical field [0001] The invention relates to a rotor dynamics characteristic experiment device, in particular to a heavy-duty gas turbine pull rod rotor dynamics characteristic experiment device. Background technique [0002] The heavy-duty (applied to ground combined cycle power generation) gas turbine tie-rod rotor is structurally different from the ordinary steam turbine rotor. The special tie-rod structure makes it have special rotor dynamic characteristics. At present, the research on the dynamic characteristics of the heavy-duty gas turbine tie-rod rotor is in its infancy. At this stage, there are no mature modeling models and theories in China, and reports in this area are rare in foreign countries due to technology monopoly. Contents of the invention [0003] The purpose of the present invention is to provide an experimental device for the dynamic characteristics of the tie-rod rotor of a heavy-duty gas turbine, which can measure the variation of the rotor ampli...

AI Technical Summary

Problems solved by technology

[0002] The heavy-duty (applied to ground combined cycle power generation) gas turbine tie-rod rotor is structurally different from the ordinary steam turbine rotor. The special tie-rod structure makes it have special rotor dynamic characteristics. At present, the research on the dynamic characteristics of the heavy-duty gas turbine tie-rod rotor is in its infancy. At this stage, there are no mature modeling models and theories in China, and reports in this area are rare in foreign countries due to technology monopoly

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