Coalbed methane is extracted from the adsorbed state in coal seams with lower pressure and production rate. In previous studies, researchers only focused on the methods that were developed for making a relationship between the underground production rate and surface flow rate without any type of optimization procedure. In this study, the main purpose is to do a review on finding out of surface layout plan to optimize the maximum gas flow rate by developing an improved pipeline network. The more the optimization of the layout plan for designing pipeline network, the lower the amount of investment need to provide. Here, a mathematical model is proposed for the gas transportation based on the hydraulic and thermodynamic calculations of the pipeline network. Not only that, but also the filtration mechanism of depressurization and desorption for the gas flow through pipe section are evaluated here. After that, the pressure drop and pipeline efficiency are explored to find out the best design of pipeline network from the observed results. Finally, based on this study, many uncertainties can be reduced associated with the installation of pipeline network for gas transportation.
W artykule przedstawiono rozwiązanie konstrukcyjne kanalizacji podciśnieniowej w systemie Roevac. Zaprezentowano budowę i zasadę działania węzła opróżniającego z zaworem opróżniającym i stacji próżniowo-pompowej. Omówiono zasady budowy sieci rurociągów podciśnieniowych.
EN
The paper presents construction solution vacuum sewerage system type Roevac. The presented of construction and operation rules of junction emptying with interface valve and vacuum-pump station. The discussed of construction rules a network of pipelines vacuum.