FEATURES OF THE DESIGN OF COMMERCIAL GAS METERING UNITS DURING THEIR RECONSTRUCTION AND MODERNIZATION

Abstract

The article analyzes the main modern methods of measuring the volume and quantity of natural gas, which are used at commercial gas metering units and gas flow measurement points at the entry and exit points of the gas transportation system of Ukraine. Considered modern means of measuring and accounting for the amount of gas - variable pressure drop devices, turbine and rotary counters and ultrasonic flowmeters.

The results of the analysis made it possible to establish that today there are no methods and means of measuring flow rates in measuring pipelines at commercial accounting nodes. If the flow speed exceeds the maximum permissible value of 25 m/s, the requirements of the regulatory document [2] will be violated. Exceeding the flow rate has a negative effect on the condition of pipelines and technological equipment, which can lead to a decrease in the operational resource and equipment failure at the GDS. The availability of information about the velocity in the measuring pipeline will make it possible to analyze the causes of emergency situations and develop measures to prevent their occurrence or minimize their impact on the state of pipelines and technological equipment at the GDS, which in the end will ensure increased reliability and an increase in the technical resource of the GTS.