Model selection method for centrifugal steam compressor
A steam compressor and centrifugal technology, applied in mechanical equipment, non-variable pumps, non-volume pumps, etc., can solve the problems of occupying a lot of computer resources and consuming a long time
Active Publication Date: 2020-10-27
CHONGQING GENERAL IND (GRP) LTD
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Problems solved by technology
[0004] The purpose of the present invention is to provide a centrifugal steam compressor type selection method to solve the problems of long time consumption and high computer resource occupation in the existing type selection method
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[0022] The following is further described in detail through specific implementation methods:
[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0024] The embodiment is basically as attached figure 1 Shown: a centrifugal steam compressor selection method, including the following steps:
[0025] S1: Calculate the exhaust pressure and total exhaust enthalpy of the centrifugal steam compressor at different flow rates according to the performance parameters of the centrifugal steam compressor;
[0026] S2: Que...
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The invention belongs to the technical field of steam compressors, and particularly discloses a model selection method for a centrifugal steam compressor. The method comprises the following steps: S1,calculating exhaust pressure and exhaust total enthalpy of a centrifugal steam compressor under different flow rates; s2, querying performance parameters of the intake density, the intake entropy, the intake total enthalpy, the exhaust isentropic density, the exhaust isentropic total enthalpy and the exhaust density at a given intake temperature; s3, the performance parameters in the S2 are dimensionless, and a dimensionless performance curve of the centrifugal steam compressor is obtained; s4, determining a corresponding rotating speed under a newly given operating condition; s5, obtaining an accurate rotating speed under a newly given operating condition; and outputting the gas flow, the exhaust pressure, the polytropic efficiency and the aerodynamic power of the gas inlet at the accurate rotating speed, and drawing a performance curve. According to the method, the problems that an existing model selection method is long in consumed time and occupies many computer resources can be solved.
Description
technical field [0001] The invention belongs to the technical field of steam compressors, in particular to a type selection method for centrifugal steam compressors. Background technique [0002] The overall structure of the steam compressor is relatively complex, mainly composed of three basic units: the compression system, the steam desuperheater and the lubrication system. The steam compressor is the key equipment for the heat recovery system to increase the temperature and pressure of the steam generated by compression. The function is to pressurize and heat up the low-pressure (or low-temperature) steam to meet the temperature and pressure requirements required by the process or project. Vapor compressors generally include Roots compressors (volume type), centrifugal compressors (speed type) and the like. [0003] At present, when selecting a centrifugal steam compressor, it is necessary to provide a detailed performance spectrum, such as figure 1 , 2 3. Including th...
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Login to View More IPC IPC(8): G06F30/20G06F30/17F04D17/10
CPCF04D17/10G06F30/17G06F30/20
Inventor 马亚如霍文浩孙皓王磊蒋安欢
Owner CHONGQING GENERAL IND (GRP) LTD