FIELD: gas pipelines.
SUBSTANCE: group of inventions relates to the main pipeline transport of gas and is intended for emptying one, several or all gas pumping units operated in adjacent compressor shops connected by inter-shop ridges without venting gas into the atmosphere. The technical task of the claimed technical solution is to create a method for pumping gas and a system for its implementation from centrifugal superchargers of one or more stopped gas pumping units from one or two adjacent compressor shops connected by inter-shop ridges using only one technical device: an ejector. The essence is in a method for pumping gas from the centrifugal supercharger circuit of one or more stopped gas pumping units located in compressor shops connected to each other by inter-shop ridges at the entrance and exit of the compressor shop with shut-off valves installed on them, including opening a shut-off valve at the entrance to the ejector connected to the inter-shop ridge for pumping the working shop, opening a shut-off valve at the exit of the ejector connected to the inter-shop ridge for suction of the working shop, the opening of the valves of the pipelines supplying the pumped gas to the ejector from the circuits of the centrifugal supercharger of each stopped gas pumping unit of one or both workshops and the closing of all these valves after performing pumping is achieved by pumping gas from the centrifugal superchargers of one or more stopped gas pumping units from one or two adjacent compressor shops connected by inter-shop ridges using a single technical device: an ejector.
EFFECT: technical result in the gas pumping system coincides with the task set and is achieved due to the fact that in the gas pumping system from the equipment of two or more parallel compressor shops of the main gas pipeline, each of which is connected to the neighboring shop by inter-shop ridges at the entrance and exit with shut-off valves installed on them; having gas pumping units connected through input and output collectors with locking valves to the input and output collectors, connected in turn to the input and output inter-shop ridges, one ejector is installed between the latter for two adjacent workshops, and the ejector inlet with the pipeline shut-off valve is connected to the inter-shop ridge at the exit of each of the workshops, the ejector outlet to the pipeline with a shut-off valve is connected to the inter-shop ridge at the entrance of each of the workshops, and the inlet of the pumped gas to the ejector with a shut-off valve is connected in each of the two workshops through the corresponding shut-off valves with the circuit of the centrifugal supercharger of each gas pumping unit.
2 cl, 1 dwg
