| The first end and the end of the gas transmission pipeline lose is poor, poor lose is one of the most key to control gas costs. The problem to the output of gas transmission system,based on error theory, taking trunk line system as the research object. First of all, with an emphasis on the working principle of ultrasonic flowmeter. Based on the research of the method is time difference ultrasonic flowmeter, to understand the flowmeter measurement method of the most commonly used. Secondly, based on natural gas group is divided, focus on understanding of natural gas compressibility factor methods and improvement. Finally,with an emphasis on BWRS equation, equation coefficient by Excel, and then to solve the gas density, then plug in gas state equation obtained by compression factor, and can be solved by VB or C density application. By solving the gas compressibility factor, obtains the main factors influencing the compressibility factor, thus correction to the gas throughput, in order to reduce the lose. |
PDF Full Text Request