Determination method, device and system for operation state of compressor

A technology for determining the operating state and method, applied in mechanical equipment, machine/engine, pump control, etc., can solve problems such as damage to compressor equipment, compressor output impact, etc.

Inactive Publication Date: 2020-04-24
ZHEJIANG SUPCON TECH
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  • Abstract
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Problems solved by technology

However, there is a surge phenomenon in the centrifugal compressor, which will have a great impact on the output of the compressor, and even damage the compressor equipment

Method used

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  • Determination method, device and system for operation state of compressor
  • Determination method, device and system for operation state of compressor
  • Determination method, device and system for operation state of compressor

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Embodiment Construction

[0056]As mentioned in the background technology, the anti-surge control is the basic control in the compressor control, but the inventors found that the current surge control is based on the equipment characteristic data provided by the compressor manufacturer, and calculates the control safety points of multiple typical working conditions , when the actual compressor is running, once the above control safety point is touched, immediately open the anti-surge valve. This method can protect the equipment of the compressor to a certain extent, but because the equipment characteristic data given by the compressor manufacturer is based on the data obtained from the specific design working conditions, and the actual operation of the compressor, with the process control requirements The actual working condition will be different from the design working condition. In addition, the molecular weight change of the compressed gas will also affect the performance of the compressor. Therefo...

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Abstract

The embodiment of the invention provides a determination method, device and system for the operation state of a compressor. The method comprises the steps that firstly, an expected performance curve chart of a target compressor is obtained; then, a coordinate system diagram representing the operation state of the target compressor and a surge line are determined based on the expected performance curve chart; afterwards, operation data of the target compressor in the real-time operation state are obtained, and operation point data, relative to the surge line, of the operation data located in the coordinate system diagram are calculated; and finally, the operation state of the compressor is determined based on the operation point data. According to the scheme, the operation data of the real-time operation state of the target compressor are converted, and the operation point data relative to the surge line are obtained, so that the operation state of the compressor under the real-time operation working condition can be monitored.

Description

technical field [0001] The invention relates to the technical field of equipment protection, in particular to a method, device and system for determining the running state of a compressor. Background technique [0002] In the field of industrial automation control, the compressor is an important equipment in the industrial production process, especially the centrifugal compressor, which has the characteristics of high efficiency, strong stability, and no pulsation in the output of high-pressure gas. However, there is a surge phenomenon in the centrifugal compressor, which will have a great impact on the output of the compressor, and even damage the compressor equipment. [0003] Therefore, how to provide a method for determining the operating state of the compressor so as to monitor the state of the compressor is a major technical problem to be solved urgently by those skilled in the art. Contents of the invention [0004] In view of this, an embodiment of the present inv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D27/02F04D27/00
CPCF04D27/02F04D27/001
Inventor 瞿枫程高峰吴洁芸黄杰
Owner ZHEJIANG SUPCON TECH
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