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In-line predication and adaptive regulation method and device for surge of compression system

A technology of self-adaptive adjustment and compression system, which is applied to components of pumping devices for elastic fluids, pump control, non-variable pumps, etc., can solve problems such as factors dominating, and improve catastrophic accidents, Improve stability and change the effect of touch and discoloration

Inactive Publication Date: 2005-01-26
江苏中国科学院能源动力研究中心 +1
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Problems solved by technology

[0008] A common shortcoming of the above-mentioned mature technologies is that the factors of passive prevention and manual operation are dominant

Method used

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  • In-line predication and adaptive regulation method and device for surge of compression system
  • In-line predication and adaptive regulation method and device for surge of compression system
  • In-line predication and adaptive regulation method and device for surge of compression system

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Embodiment Construction

[0016] First reference figure 1 , The dynamic pressure sensor 1 collects the pressure signal at the outlet of the compression machine and provides it to the forecasting and regulating analog circuit. The DC power supply 2 is used to provide the power supply for the entire device. The preamplifier 3 amplifies the millivolt voltage signal of the dynamic pressure sensor 1 into a dynamic signal in the range of 2.5 volts, and its purpose is to improve the resolution of the dynamic signal, and then the low-pass filter 4 makes the dynamic signal related to the surge threat The low-frequency signal is extracted to lay the foundation for the analysis of the subsequent analog data module. Then, the FFT analysis DSP module 5 performs Fourier online analysis on the dynamic signal, and captures the frequency information related to the surge precursor, which is the first analog switch circuit 6 and sawtooth The wave analog circuit 9 provides a control signal, and the first analog switch circui...

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Abstract

An in-line prediction and adaptive regulation equipment for surge of compressor system is composed of dynamic pressure sensor, DC power supply, pre-amplifier analog circuit, low-pass filter analog circuit, FFT analyzing DSP module, switch analog circuit, high-speed electromagnetic unit, integrator analog circuit, analog sawtooth wave output circuit, servo motor, inlet guide blade, microregulation valve and high-speed exhaust valve. It can prevent the surge accident to improve stability of system.

Description

Technical field [0001] The invention relates to an on-line prediction and self-adaptive adjustment device for surge of a compression system. Background technique [0002] In the current field of fluid compression machinery systems, the surge phenomenon that exists during the operation of fluid compression machinery endangers the operating safety of the system, and once it occurs, it will cause catastrophic accidents. This kind of strong fluid shock will cause damage to the important parts of the compressor (rotor, axial thrust, stator, diffuser), which is the main hazard to the stable operation of the compression system, and will cause the destruction of the machine in severe cases. For nearly half a century, the surging phenomenon of compression system has been a difficult subject of general concern for turbomachinery research and designers. The current mature technology is to reserve enough surge pre-degree during design and operation to prevent this phenomenon from happening. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D27/00F04D27/02F04D29/66
Inventor 聂超群蒋骏
Owner 江苏中国科学院能源动力研究中心
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