Natural gas station is an important part of the whole natural pipeline transmission system, in which vibration a hidden danger that cannot be ignored for safe operation station. In view severe enterprise, acceleration sensors are used to test each measuring point under different working conditions, and then three-dimensional finite element model established by using numerical simulation softwar...

At present, two-stage centrifugal compressors based on air bearing and high-speed motor technology are widely used in automotive hydrogen fuel cells. The low-pressure stage high-pressure of the compressor directly connected through an interstage pipeline, thus structure pipeline has important influence aerodynamic performance compressor. In this work, a with three different pipelines were inves...

The fundamental equations which describe the flow through gas and liquid pipelines are formally identical. However, the wide gap between the compressibility ranges of gases and liquids leads to quite different transport characteristics for both kinds of media. While for oil pipelines and pump stations specific topics like batch operation, surges, and possible slack line scenarios have to be con...

The object of research is the fuel gas system a turbine engine. study use secondary energy resources gas-pumping unit at compressor station main pipeline has been carried out. work engine, including system, considered. drawback revealed – ineffective excess pressure. An informational analysis options that eliminate identified It shown in order to disadvantage, it advisable turbo-expander utiliz...

In this article torque assisted anti-surge control (TASC), a compressor anti-surge control system based on model predictive control (MPC) is presented. TASC is implemented on an embedded system for the control of compressor stations with electrical variable-speed drives (VSD) which are used in applications such as natural gas transportation via pipelines. The manipulated variables of the propos...

This tutorial explains the surge phenomenon as well as the precursors of surge and the damage that surge can cause to the equipment. Then, methods to keep the compressor system from surge, i.e., modern surge control systems, are discussed. This includes the necessary instruments, algorithms used, as well as the piping layout required. Sizing considerations for valves and other system components...

The accretion of ice in the compression system of commercial gas turbine engines operating in high ice water content conditions is a safety issue being studied by the aviation community. While most of the research focuses on the underlying physics of ice accretion and the meteorological conditions in which accretion can occur, a systems-level perspective on the topic lends itself to potential n...

Abstract In order to recuperate the ultra-high purity xenon from PandaX-4T dark matter detector high-pressure gas cylinders in emergency or at end-of-run situation, a high speed recuperation system is designed and developed. This includes diaphragm pump, heat management system, main pipeline, reflux auxiliary pipeline automatic control system. The liquid vaporized by gaseous compressed 6 MPa fl...

Analysis and experiment show that to supercharge the suction volume of a cylinder by means of pressure pulsation is not certain to result in delay of the valve closing. To arrange a proper suction pipeline and valve cavity, we can not only get supercharge of the cylinder, but also,get economical specific power consumption, while valve working condition is good too. In this paper the methods of ...