Method for load dump test of gas turbine

A technology of gas turbine and test method, which is applied in gas turbine engine test, jet engine test and other directions, can solve the problem of no test method, etc., and achieve the effect of shortening time, improving safety and ensuring safety

Active Publication Date: 2014-02-05
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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AI Technical Summary

Problems solved by technology

[0004] At present, the field of load rejection test of gas turbines in my country is still blank, and there is no mature test method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] A gas turbine load rejection test method utilizes a hydraulic dynamometer as the load of the gas turbine, comprising the steps of:

[0025] (1) After the gas turbine has completed the run-in test and inspection test run, the gas turbine performance acquisition test is carried out at the same time as the gas turbine load rejection test; the gas turbine is started to run, when the output power of the gas turbine reaches its rated output 10% of the power (7200KW), that is, 720KW, when the power swing of the hydraulic dynamometer does not exceed 3% of 720KW, record the position of the water inlet valve and drain valve of the hydraulic dynamometer, and put the hydraulic dynamometer The load control valve position of the dynamometer is set to 0.1 working condition; when the output power of the gas turbine reaches 1440KW, and the power swing of the hydraulic dynamometer does not exceed 3% of the 1440KW of the gas turbine, record the hydraulic dynamometer The water inlet valve ...

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Abstract

The invention relates to a method for a load dump test of a gas turbine. According to the technical scheme of the method for the load dump test of the gas turbine, a hydraulic dynamometer serves as a load. The method comprises the following steps that the position, corresponding to each power point of the gas turbine, of a water inlet valve and the position, corresponding to each power point of the gas turbine, of a water discharging valve of the hydraulic dynamometer are recorded; the hydraulic dynamometer is switched to a valve control mode, an over-torque and over-speed alarming value and an over-torque and over-speed alarming action of the hydraulic dynamometer are set; the fluctuation quantity of speed of a power turbine rotor is recorded. The method for the load dump test of the gas turbine aims at improving the safety of the in-field load dump test of the gas turbine and the reliable basis and the improvement direction are provided for the out-field load dump test of the gas turbine.

Description

technical field [0001] The invention relates to a load rejection test method, in particular to a gas turbine load rejection test method. Background technique [0002] A new type of gas turbine needs to do a load rejection test before leaving the factory to provide a theoretical basis and test for the field load rejection test. The outfield refers to the place where the gas turbine is used. [0003] The load rejection test of the new gas turbine refers to the assessment of the ability of the gas turbine unit to quickly connect and disconnect the load, the adaptability of each auxiliary system and equipment to the load rejection process, and the verification of the stability of the regulation system, the dynamic overshoot, and the adjustment time of the transition process. And other dynamic characteristics, the test has a high risk. [0004] At present, the field of load rejection test of gas turbines in my country is still blank, and there is no mature test method. [0005...

Claims

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Application Information

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IPC IPC(8): G01M15/14
Inventor 高新和徐玮李景波孙远伟张立南
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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