TOPPING-UP PUMP-COMPRESSOR PLANT Russian patent published in 2007 - IPC F04B35/00 

FIELD: oil and gas producing industry.

SUBSTANCE: invention relates to compression and delivery of gas-liquid mixtures, particularly, to topping-up pump-compressor plant for use in oil and gas producing industry. Proposed plant contains topping-up compressor with hydraulic seal and system to deliver feed liquid and low-pressure gas. Design peculiarity of plant is that system delivering feed water and low-pressure gas includes receiver whose upper communicates through gas-pipeline with delivery manifold of low-pressure compressor with adjustable delivery and with branch pipe of gas intake valve of topping-up compressor with hydraulic seal, and lower space communicates through liquid pipeline with branch pipe of suction liquid valve of said compressor. Receiver is furnished with level gauge, shutoff and regulating gate and flow meter on liquid pipeline, and reducing valve and gas flow meter on gas pipeline and control system preventing breakthrough of gas into liquid pipeline. Plant is furnished with system to provide automatic replenishment of liquid in receiver. Device is adapted for operation in systems with closed circulation.

EFFECT: provision of control ratio of gas-liquid mixture in wide range.

3 cl