Adjustable guide/stationary blade control device and method for axial flow compression system under variable working condition

Abstract

The invention discloses an adjustable guide / stationary blade control method for an axial flow compression system under a variable working condition and relates to the gas turbine technologies. The adjustable guide / stationary blade control method aims at an existing multistage axial flow compression system with an adjustable guide / stationary blade, can reasonably adjust an angle value of the guide / stationary blade and achieve the purpose of efficiency optimization through an on-line guide / stationary blade adjusting controller when the compression system runs under the variable working condition, wherein the controller adopts an advanced embedded operating system and a 32Bit signal processor. By means of the method, an input signal of a traditional controller is simplified, the complexity of signal detection is reduced, and the efficiency optimization when an operating point is under the variable working condition can be achieved by means of the optimizing method. The adjustable guide / stationary blade control method is suitable for any axial flow compression systems with adjustable guide / stationary blades and enables an efficiency valve of the operating point to be larger than a value before the optimization.

Description

technical field [0001] The invention relates to the technical field of gas turbines, and relates to an adjustable guide / stator vane controller and method for variable working conditions of an axial flow compression system. Background technique [0002] At present, the vast majority of compressors / fans are in non-design working conditions in actual operation, and the actual operating efficiency is about 20%-30% lower than the highest efficiency. The energy saving problem of blade type compressed fluid machinery is very urgent. , [0003] At home and abroad, the following adjustment methods are generally used to improve the efficiency of the variable working point: speed frequency conversion adjustment, throttle valve, adjustable moving vane, and adjustable guide / stator vane. Represented by TLT Company in Germany, the axial flow fan with hydraulic blade adjustment can maintain its operating efficiency at 83% to 88%. Russia is a country that mainly uses centrifugal mine fans....

AI Technical Summary

Problems solved by technology

However, there are very few literatures on how to obtain higher efficiency through self-adaptive adjustment of the guide / stator vane. Moreover, the adjustment methods currently used in the industry are either complicated in measurement signals or complex in action mechanism. In practical applications, the transmission efficiency will decrease. Very low, seriously affecting the efficient work of the compression system

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