Method and system for determining compressor operating space based on variable operating conditions
A technology for determining the method and operating space, which is applied to the components of the pumping device for elastic fluids, mechanical equipment, non-variable-capacity pumps, etc., and can solve the problems of increased energy consumption of compressors and poor process adjustment accuracy.
Active Publication Date: 2017-01-04
HANGZHOU HOLLYSYS AUTOMATION
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However, doing so will result in poor process adjustment accuracy and increased energy consumption of the compressor.
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[0051] The core of the present invention is to provide a method for determining the operating space of a compressor based on variable operating conditions. This method can dynamically change the operating and control curves of the compressor as the inlet operating conditions of the compressor change, thereby improving the efficiency of centrifugal compressors. Or axial-flow compressors for accurate and efficient anti-surge control, and to maximize the adjustment accuracy of process parameters and reduce the energy consumption of the compressor.
[0052] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Base...
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The invention discloses a method and system for determining the operating space of a compressor based on variable working conditions, including: collecting coordinate data of each predetermined point in each curve of the compressor's operation and control curve under predetermined working conditions; According to the coordinate data of each predetermined point in each of the curves and the predetermined working conditions, use the predetermined normalization formula to calculate the respective predetermined points in each of the curves to obtain the normalized value of each predetermined point, according to the various The normalized compressor operation and control curve is obtained by normalizing the value at the predetermined point; according to the values of the inlet pressure and inlet temperature of the compressor under the actual working condition, the operation and control of the compressor under the actual working condition is calculated by using a predetermined formula The curve and determine the operating space of the compressor through the curve; the method can make the operation and control curve of the compressor dynamically change with the change of the inlet working condition of the compressor.
Description
technical field [0001] The invention relates to the field of rotating machinery control, in particular to a method and system for determining the operating space of a compressor based on variable working conditions. Background technique [0002] At present, domestic compressors generally adopt a fixed working condition anti-surge algorithm based on the design working condition, that is, the operation and control curve of the compressor is always consistent with the design working condition. However, in the actual operation of the compressor, the inlet working condition often deviates from the design working condition, and sometimes seriously deviates from the design working condition (for example, when the compressor starts up or the upstream process reduces production due to equipment problems), resulting in compressor failure. The anti-surge control of the compressor often refuses to operate or malfunctions, which will cause damage to the compressor equipment, disturbance ...
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IPC IPC(8): F04D27/00F04D29/66
CPCF04D27/02
Inventor 康明强秦悦明纪云锋刘康宁行增辉杜辉
Owner HANGZHOU HOLLYSYS AUTOMATION