A Type Selection Method of 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: 2021-09-14
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 1-4 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: ...
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The invention belongs to the technical field of steam compressors, and specifically discloses a type selection method of a centrifugal steam compressor, comprising the following steps: S1: calculating the exhaust pressure and the total exhaust enthalpy of the centrifugal steam compressor at different flow rates; S2: Query the following performance parameters at a given intake air temperature: intake air density, intake air entropy, intake air total enthalpy, exhaust isentropic density, exhaust isentropic total enthalpy, and exhaust gas density; S3: in S2 The performance parameter is dimensionless, and the dimensionless performance curve of the centrifugal steam compressor is obtained; S4: determine the corresponding rotational speed under the new given operating condition; S5: obtain the accurate rotational speed under the new given operating condition; and output the accurate rotational speed The gas flow rate, exhaust pressure, variable efficiency, and aerodynamic power of the air inlet below are drawn into a performance curve. The above method can solve the problems of long time consumption and high computer resource occupation in the existing type selection method.
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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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