Ultra-temperature and ultra-rotation protection device and control method thereof

Abstract

The invention discloses an ultra-temperature and ultra-rotation protection device and a control method thereof. The protection device comprises signal collecting circuit boards and a relay system, wherein the signal collecting circuit boards are used for conducting signal collecting and processing on the temperature and the rotating speed, and the relay system executes protection motion; a power processing unit, a rotating speed signal unit, a temperature signal unit and a processor unit are integrated to each signal collecting circuit board; the protection device is in dual-channel redundancy design, the signal collecting circuit boards collect the rotating speed and temperate signals at the same time, after the signals are collected, a processor does logic distinguishing on the signals, and the two channels are in communication; and when a set condition is met, corresponding relays move, and therefore the effect of protecting a marine engine of a gas turbine is achieved.

Description

technical field [0001] The invention relates to the field of gas turbine control, and more specifically, to an over-temperature and over-rotation protector and a control method thereof. Background technique [0002] The gas turbine unit is one of the important generator sets of national defense and military equipment. It will generate high temperature and high speed when starting or running. Once the temperature or speed exceeds a certain value, it will cause the gas turbine to burn or be damaged. The reliability and sensitivity of the protection device for over-temperature and over-rotation of the gas turbine directly affect the safety and reliability of the gas turbine. [0003] At present, similar protection devices in China do not have the function of protecting against over-temperature and over-rotation at the same time. The existing gas turbine protection device is a temperature limiter, which has the following disadvantages: [0004] (1) There is only a simple tempe...

AI Technical Summary

Problems solved by technology

[0004] (1) There is only a simple temperature control oil drainage function, and the function is single, and the overtemperature and overrotation protection of the gas turbine cannot be realized at the same time;

[0005] (2) It adopts analog electronic technology, which is not intelligent, and cannot realize self-inspection, data and event recording and modification, and is only suitable for plain areas, and cannot adapt to different atmospheric environments;

[0006] (3) In addition, the ability to resist electromagnetic fields and radio interference is weak, and the stability is not high;

[0007] (4) Most of the single-channel temperature limiters are used to protect the gas turbines. Without redundant measures, when the limiter fails, the gas turbine cannot be reliably protected

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