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A compressor blade top plasma stabilization system

A plasma and compressor technology, used in mechanical equipment, machines/engines, liquid fuel engines, etc., can solve problems such as improper power-on voltage control, complicated wiring, creepage phenomenon, etc., to achieve easy installation and use, good control effect, the effect of reducing flow loss

Active Publication Date: 2016-09-14
INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this arrangement also has some disadvantages, such as relatively complicated wiring, and improper control of the power supply voltage can easily cause creepage, etc.

Method used

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  • A compressor blade top plasma stabilization system
  • A compressor blade top plasma stabilization system
  • A compressor blade top plasma stabilization system

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Embodiment Construction

[0026] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0027] The plasma stability expansion system on the top of the compressor blade provided by the invention changes the traditional staggered arrangement of electrodes into an opposite arrangement, which can block the leakage flow and delay the occurrence of a stall when the working condition of the compressor changes. Such as figure 2 as shown, figure 2 A schematic diagram of a compressor blade top plasma stabilization system provided for the present invention, the system includes a plasma actuator 301, a neutral line 302, a high voltage line 303, a pressure sensor 304, a casing 305 of a turbomachinery, an insulating material 306, and a compressor Blade 307, high voltage electrode 308, AM / FM circuit 309, computer 310 an...

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Abstract

The invention discloses a compressor blade top plasma stabilization system, which comprises: a compressor blade; a high-voltage electrode arranged in a casing above the compressor blade, and the high-voltage electrode is arranged opposite to the compressor blade, In addition, the upper and lower sides of the high-voltage electrode are covered with insulating materials; the pressure sensor is connected to the computer through the acquisition board; the plasma actuator is connected to the high-voltage electrode and the compressor blades, and the AM and FM circuit is also connected to the computer. With the present invention, since the whole system can be automatically controlled by a computer, and the pressure sensor is used to detect the pressure signal on the inner wall of the compressor, the one shown can automatically detect the sign of a stall when the compressor is near a stall condition and utilize the top of the blade and the discharge of the casing to generate The plasma blocks the leakage flow, thereby reducing the flow loss, widening the stability margin, and delaying the stall.

Description

technical field [0001] The invention mainly relates to the technical field of active control of fluid machinery, especially a compressor blade top plasma stabilization system, which is used for active flow control of compressors in gas turbines and aero-engines, and can also be applied to civil applications such as pumps and fans. In turbomachinery. Background technique [0002] Turbomachinery plays an important role in the development of the national economy, and pumps and fans are widely used in industry; while the development and manufacture of gas turbines and aeroengines is an important symbol of a country's comprehensive scientific research strength. As one of the three major components of gas turbines and aero-engines, the stability of the axial flow compressor is an important indicator. The operating range of the compressor is limited by the stall boundary line. In order to prevent serious accidents caused by the compressor entering the stall state during variable o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/54
Inventor 林峰张文强王子楠
Owner INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
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