Multi-gas-source steam pipe network computing system of hydraulic thermal-coupling simulation model

Abstract

The invention relates to a multi-gas-source steam pipe network computing system of a hydraulic thermal-coupling simulation model, belonging to the technical field of energy pipe network simulation calculation. The system provided by the invention comprises a relation database, a data acquisition module, a data result display module and a pipe network simulation calculation module, wherein the data acquisition module comprises a real-time database and a data acquisition subsystem; the data result display module comprises a data input submodule and a calculation result display submodule, and the pipe network simulation calculation module comprises a coupling simulation calculation submodule and a calculation result correction submodule. The system provides a modeling reference for multi-gas-source calculation through describing the topological structure of the pipe network by using a graph theory method, is coupled with hydraulic and thermodynamic calculation models, solves the modules by using a finite element method, and can trigger result correction when the pipe network environment is changed, and the data result display module can be displayed in a view control fitting of the pipe network in a visualization mode. The invention has the advantages of improving the calculation accuracy of state parameters and solving the calculation problems of the multi-gas-source pipe network model.

Description

technical field [0001] The invention belongs to the technical field of energy pipeline network simulation calculation, and provides a relatively accurate and rapid calculation system for calculating state quantities such as temperature, pressure and flow of each node of a steam pipeline network and the amount of generated condensed water. The system uses the pipeline network simulation calculation module to solve the modeling problem of the multi-gas source steam pipeline network, making the model more universal, and uses a method of correcting the parameters of the pipeline network model proposed by the calculation result correction sub-module to correct the model results Make corrections to make the model adaptive. Background technique [0002] As the main energy-carrying medium and auxiliary process logistics in the production process, steam is widely used in various fields such as oil refining, chemical industry, steel, light industry, thermal power, and district central...

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Problems solved by technology

[0003] In the past, the hydraulic calculation of the steam pipe network was mainly completed by manually consulting the calculation manual or calculation chart, which was inefficient and had large errors

At present, there are some calculation methods for steam pipe networks at home and abroad, but most of them only choose the calculation of hydraulic conditions, ignoring the interaction between steam hydraulic conditions and thermal conditions, and often only consider the change of pressure in the calculation of state parameters Neglecting the change of temperature makes the error between the hydraulic calculation result and the actual operation data large, and the accuracy is difficult to meet the engineering needs

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