Steam pipe network friction resistance coefficient identification system based on genetic algorithm

Abstract

A steam pipe network friction resistance coefficient identification system based on the genetic algorithm belongs to the technical field of parameter identification and calculation of a steam pipe network and comprises a relation data base server, a real-time data base server, an application server, an engineer station and an application module. The relation data base server is connected with the engineer station and the application server, and the application server is connected with the relation data base server, the real-time data base server and the engineer station and keeps data exchange with the same. The application module comprises a relation data base, a data acquiring module, a data result display module, a waterpower and heating power coupled calculating module and a pipe network friction resistance coefficient identification module. The steam pipe network friction resistance coefficient identification system based on the genetic algorithm has the advantages that a target function formed by the quadratic sum of pressure of nodes of the pipe network, real-time pipe flow measuring valve and a calculated value is used as a criterion function, calculation of the steam pipe network friction resistance coefficient identification and calculation are realized quickly and accurately, so that the pipe network model calculation can be more accurate, and analysis and maintenance of the pipe network are facilitated.

Description

technical field [0001] The invention belongs to the technical field of steam pipe network parameter identification and calculation, and in particular provides a steam pipe network friction coefficient identification system based on a genetic algorithm, which realizes fast and accurate pipe network friction coefficient identification. Background technique [0002] During the actual operation of the steam pipe network, with its transformation, aging, and changes in operating conditions, the friction coefficient in the pipe network will continue to change, the calculation error is large, and online measurement cannot be performed. In the hydrothermal calculation process of the pipe network, the friction coefficient is affected by the physical characteristics of the pipe wall, fluid properties and flow state changes, so it is difficult to ensure a good estimate of the pipe network friction coefficient in the dynamic process. In order to achieve the real calculation effect of the...

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Problems solved by technology

[0002] During the actual operation of the steam pipe network, with its transformation, aging, and changes in operating conditions, the friction coefficient in the pipe network will continue to change, the calculation error is large, and online measurement cannot be performed

In the hydrothermal calculation process of the pipe network, the friction coefficient is affected by the physical characteristics of the pipe wall, fluid properties and flow state changes, so it is difficult to ensure a good estimate of the pipe network friction coefficient in the dynamic process

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