Accurate installation device and method of detection element of turbonator

Abstract

The invention provides an accurate installation device of a detection element of a turbonator. The accurate installation device comprises a fastening component, a voltmeter, a DC (direct-current) power supply, a commutator and a fixing support, wherein the detecting component is arranged on the support and is used for fastening the detecting component arranged on the support, the input end of the commutator is electrically connected with the detecting component, the output end of the commutator is connected with the voltmeter, the DC power supply is used for supplying power for the commutator and supplying power for the detecting component through the commutator, and the commutator is used for transforming an alternating voltage signal outputted by the detecting component into a DC voltage signal and amplifying the DC voltage signal. According to the accurate installation device, an output voltage is measured by using the precision digital voltmeter instead of direct measurement of a vernier caliper and a filler gauge; and the method is more accurate and reliable, dynamic monitoring display is adopted in the whole process, and success is achieved in the measurement for one time. The invention also provides a method for installing the detecting component by using the installation device.

Description

technical field [0001] The invention relates to the technical field of turbogenerator systems, in particular to a precise installation device for a turbogenerator detection element and an installation method using the same. Background technique [0002] The steam turbine generator (hereinafter referred to as the steam turbine) runs at high speed during work. In order to ensure the safety of the main engine in an emergency and prevent vicious accidents that cause casualties and major equipment damage, many detection components of the steam turbine are installed. Generally, the protection of the steam turbine mainly includes: overspeed protection, axial displacement protection, shaft vibration protection, large expansion difference protection, low oil pressure protection, low vacuum protection, high bearing temperature protection, OPC protection, etc. Among them, overspeed protection, axial displacement protection, shaft vibration protection, large expansion difference protect...

AI Technical Summary

Problems solved by technology

Among them, overspeed protection, axial displacement protection, shaft vibration protection, large expansion difference protection, etc. all need to install precision detection components, and the distance between the detection component and the bearing surface of the measured shaft is very strict, and the detection component is easy to be damaged if it is too close , is too far away and affects the measurement

The conventional installation method is to loosen the screw fastening the detection element first, use a vernier caliper and a feeler gauge to find the distance between the end face of the detection element and the bearing surface, and then tighten the fastening screw after finding it, so that in the process of twisting the screw , the distance will also undergo some changes, and it must be loosened, measured and tightened again, repeated many times, and the accuracy requirements may not be met in the end. Therefore, the precise installation of steam turbine detection components has been a very complicated and difficult task for a long time. work, and this problem urgently needs to be resolved

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