Patent ID: 9453747
Filing Date: 2016-09-27
CPC Classification: G01F

Claim Text:
1. A metering and separating device for natural gas, comprising: an electric liquid discharge valve, a liquid flow meter, a pressure transmitter, a differential pressure transmitter, a temperature sensor and a flow computer, wherein: a multi-tubes cyclone separator is connected with said liquid flow meter and said electric liquid discharge valve via a liquid exit tube, said multi-tubes cyclone separator is connected with orifice plate flow meters via a gathering tube, said pressure transmitter is provided in a front end of said orifice plate flow meters, said differential pressure transmitter is provided on said orifice plate flow meters, said temperature sensor is provided on a rear end of said orifice plate flow meters, said electric liquid discharge valve, said liquid flow meter, said orifice plate flow meters, said pressure transmitter, said differential pressure transmitter, and said temperature sensor are connected with said flow computer via data lines; said multi-tubes cyclone separator consists of 2˜100 tubular containers, each of said tubular containers in periphery has a side close to a top thereof communicated with an annular tube via a shunt tube, said an annular tube is communicated with said gathering tube, each of said tubular containers has said top communicated with a main gas tube via a gas guide sub-tube, said main gas tube is communicated with a gas exit tube, each of said tubular containers has a bottom communicated with a main liquid tube via a liquid guide sub-tube, said main liquid tube is communicated with a liquid exit tube, a demister is provided on said top of said tubular container; each of said tubular containers in periphery of said multi-tubes cyclone separator is connected tangentially with one of said shunt tubes; each of said gas guide sub-tubes is provided in center of said top of each of said tubular containers, and has a first end inserted into said tubular container for 10-100 mm, and a second end communicated with said main gas tube.