Method for building dynamic simulation system of natural gas pipeline network conveying system

A natural gas pipeline network and dynamic simulation technology, applied in the field of pipeline systems, can solve problems such as low calculation efficiency and difficulty in overall solution

Active Publication Date: 2012-11-14
PIPECHINA SOUTH CHINA CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The classic numerical model for dynamic simulation of natural gas pipeline network transmission system can already accurately describe various conditions during the dynamic operation after filling, but the overall solution is also difficult and the calculation efficiency is low

Method used

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  • Method for building dynamic simulation system of natural gas pipeline network conveying system
  • Method for building dynamic simulation system of natural gas pipeline network conveying system
  • Method for building dynamic simulation system of natural gas pipeline network conveying system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0093] Embodiment. The specific embodiment of the present invention is described with this example and the present invention is described further. This example is an experimental method, its flow is as follows figure 1 shown.

[0094] 1. The topological structure of the natural gas pipeline network targeted by this embodiment is as follows image 3 shown. The external boundary conditions are shown in Table 2, and the branch point conditions are shown in Table 1.

[0095] Table 1 Table of external boundary conditions of the embodiment

[0096] serial number

outer border

Associated Components

1

ES001

BV001, BV002, BV003

2

ED002

BV018

3

ED003

BV019

[0097] Table 2 Example branch point situation table

[0098] serial number

branch point

Upstream Associated Components

Downstream Associated Components

1

ND010

BV004, BV005

BV007, BV008

2

ND001

ES...

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Abstract

The invention discloses a method for building a dynamic simulation system of a natural gas pipeline network conveying system and relates to the technical field of pipeline systems. The method comprises the following steps of: simultaneously building pipe section and non-pipe element mathematical models; executing linear processing after discretization to form a dynamic simulation system linear numerical model which is equivalent in engineering and can be directly solved. The flow of the method comprises the following processes of: building the dynamic simulation mathematical model of the natural gas pipeline network conveying system; carrying out discretization on the dynamic simulation mathematical model of the natural gas pipeline network conveying system; reordering after discretization of each nodal equation; executing linear processing, so as to obtain the dynamic simulation numerical model of the natural gas pipeline network conveying system. The method provided by the invention is high in accuracy and calculation efficiency in building of any topological structure.

Description

technical field [0001] The invention relates to a method for establishing a dynamic simulation system of a natural gas pipeline network delivery system. It relates to the technical field of piping systems. Background technique [0002] The simulation of natural gas pipeline network transmission system includes two aspects: steady-state simulation and dynamic simulation. Steady-state simulation is a powerful tool for pipeline network design. Dynamic simulation can simulate the change of pipeline network operating parameters over time, and can be used for different process design schemes. State-of-the-art computing ensures effective scheduling management and timely discovery and handling of emergencies. Compared with the steady-state simulation, the dynamic simulation of the natural gas pipeline network transmission system is more difficult to solve and has a wider application range. The key to a better dynamic simulation of the pipeline network system lies in the establishm...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 艾慕阳宋飞陈国群郑建国柳建军赵佳丽鹿广辉
Owner PIPECHINA SOUTH CHINA CO
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