The invention relates to the technical field of
natural gas exploitation equipment, in particular to an efficient and energy-saving gas-liquid separator for
natural gas exploitation, which comprises a shell I, the interior of the shell is divided into an upper cavity and a lower cavity by a transverse partition plate, the upper cavity is divided into a first cavity, a second cavity and a third cavity by two longitudinal partition plates, and a
distributor, a mist eliminator and a
cyclone assembly containing a series
cyclone are respectively arranged in the first cavity, the second cavity and the third cavity; the longitudinal partition plate extends to the lower cavity and is provided with a baffle, the bottom of the shell is provided with a liquid outlet and an
electric control valve corresponding to the three cavities, and the lower cavity is provided with a
liquid level sensor. The
distributor comprises a main
pipe with a
spiral flow deflector and a centrifugal
disperser, and a gas distribution disc with a nested gas guide cylinder; the mist eliminator is provided with three stages of separating
layers and a
magnetorheological fluid self-adaptive adjusting structure; a gas gathering cover is arranged at the communicated part of the three cavities; and the flow guide
pipe adopts a Venturi
pipe and is provided with a one-way valve. Through three-stage grading separation, self-adaptive resistance adjustment and cavity-divided liquid seal liquid drainage, the device is high in separation efficiency, low in
energy consumption, stable in operation and convenient to maintain, and is suitable for scenes such as
natural gas wellhead exploitation and gathering and transportation
station pretreatment.