A kind of natural gas station gas transmission method

Abstract

The invention relates to the technical field of natural gas transportation, in particular to a natural gas field station gas transmission method, which is suitable for gas transmission control of gas supply branches in the filter area and metering area of ​​the field station. The low automation level of existing natural gas stations cannot guarantee the gas safety of downstream users, especially the faulty gas supply branch in the filtering area and the metering area cannot respond quickly to switch the branch and cause the gas supply branch to be shut down. The present invention proposes a A natural gas station gas transmission method, the method is based on self-diagnosis to improve the reliability of natural gas station gas transmission, specifically through real-time diagnosis of the health of the interlocking gas supply branch, based on the status of valves and transmitters on the gas supply branch. Judging whether to switch the gas supply branch can effectively shorten the reaction time required for the branch switching action after the gas supply branch is shut down and fails, thereby improving the redundancy level of the filtering and metering branch of the natural gas station, and improving the safety of the natural gas pipeline network operation sex and reliability.

Description

technical field [0001] The invention relates to the technical field of natural gas transportation, in particular to a natural gas field station gas transportation method, which is suitable for the gas supply branch of the field station filtering area and metering area. Background technique [0002] At present, the automation level of domestic natural gas stations is generally not high, and some provinces still rely on manual gas supply. In some provinces with advanced gas supply technology, the natural gas pipeline network adopts the SCADA system (Supervisory Control And Data Acquisition) for remote data collection and process station monitoring, and each station adopts the Station Control System (Station Control System) with PLC (Programmable Logic Controller) as the core ), complete the data collection and monitoring tasks of the process in the station, and transmit the operation status and various parameters of the process equipment to the dispatch control center in the p...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved and the technical task proposed by the present invention are to overcome the low level of automation of existing natural gas stations, which cannot guarantee the safety of gas consumption for downstream users, especially the faulty gas supply branch in the filtering area and metering area cannot quickly respond to make branch switching In order to solve the problem that the gas supply branch is shut off due to the action, the present invention proposes a gas transmission method for a natural gas station. The gas transmission method is suitable for the gas supply branch of the metering area and the filtering area, and can be based on the valve on the gas supply branch , The status of the transmitter automatically judges whether to switch the gas supply branch, so as to shorten the reaction time required for the switching action of the gas supply branch, improve the safety and reliability of the operation of the natural gas pipeline network, and the gas supply branch in the filter area of ​​the existing station The pipeline has a filter, and the gas supply branch of the metering area has a flow meter

Images