Movable gas pressure regulating metering pry

The invention relates to a movable gas pressure regulating metering pry which consists of a natural gas rectifier, a flowmeter, a safety cut-off valve, a monitoring pressure regulating valve and a working regulating valve which are connected in series from upstream to downstream. A temperature transmitter, a pressure gauge assembly and a temperature gauge assembly are designed and installed at thedownstream of the flowmeter; a pressure gauge assembly is designed at the downstream of the safety cut-off valve; a pressure gauge assembly is designed at the downstream of the monitoring pressure regulating valve; a pressure gauge assembly, an air source distributor and a pressure transmitter are designed at the downstream of an electric regulating valve; the air source distributor provides an air source signal for the safety cut-off valve and the monitoring pressure regulating valve; and the temperature transmitter and the pressure transmitter collect pressure and temperature signals to a station control system. Th