Steam pipe network decoupling steady-state optimization method and device, medium and program product

By constructing a digital simulation model of the steam pipeline network, the generation and separation process of condensate water is explicitly modeled, and hydraulic and thermodynamic parameters are decoupled. This improves the numerical stability and calculation accuracy of the steam pipeline network, solves the problem of inaccurate parameter distribution in existing technologies, and supports the optimized design and operation scheduling of the steam system.

CN121480392AActive Publication Date: 2026-02-06SHANGHAI THREE ZERO FOUR ZERO TECH CO LTD
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Patent Information

Application Number
CN202610019218.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-08
Publication Date
2026-02-06
Estimated Expiration
2046-01-08

AI Technical Summary

Technical Problem

Existing technologies neglect the condensation phase change behavior when determining the distribution of physical parameters of steam pipelines, leading to inaccurate calculations of mass and energy conservation. The use of homogeneous flow assumptions and strong coupling methods results in complex calculations, poor convergence, and difficulty in reflecting the hydraulic-thermal coupling characteristics under actual operating conditions.

Method used

By constructing a digital simulation model of the steam pipeline network, the generation, separation and removal process of condensate water is explicitly modeled. The hydraulic elements and thermodynamic parameters are decoupled into sequential processes. A closed-loop iterative method is adopted to dynamically update the condensate water volume to correct the mass conservation relationship, thereby achieving numerical stability and physical consistency of the multiphase flow and heat transfer coupled system.

Benefits of technology

It significantly improves the numerical stability and calculation accuracy of steady-state simulation of steam pipeline networks, and can accurately determine the distribution of physical parameters of transmission pipelines and connecting entities, supporting industrial energy-saving diagnosis and optimization design.

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Abstract

The invention discloses a steam pipe network decoupling steady-state optimization method and device, a medium and a program product, and relates to the technical field of smart city guarantee. The method comprises the following steps: determining node pressure distribution data and flow distribution data when a mass and momentum balance condition is satisfied according to fluid distribution data of a pipe network simulation model corresponding to a physical structure and an actual working condition of a steam pipe network; and determining node enthalpy data meeting an energy balance condition. Determining a condensation phase change node according to the node pressure distribution data and the node enthalpy data, associating the steam enthalpy of the condensation phase change node to a saturation state under the current pressure, and updating a current fluid distribution parameter according to the determined condensation water volume, and taking the parameters of the pipe network simulation model finally reaching the dynamic balance state as the operation state parameters of the steam pipe network under the target operation condition. The problem that the steam pipe network parameters cannot be accurately determined in the prior art can be solved, and the running state parameters of the steam pipe network can be accurately determined.
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