FIELD: oil and gas industry.
SUBSTANCE: invention is applicable to the oil and gas producing industry and petrochemical industry and particularly to oil and gas transportation and processing and can be implemented at oil pumping stations and plants including in oil fields and oil refineries. The oil pumping station has a network of station utilities including oil or probably petroleum product and gas condensate forming at least one hydraulic system, and process pipelines equipped with shutoff and/or shutoff and control valves with a locking mechanism. Pumping equipment includes a group of main pressure pumps, a group of boosting pumps, as well as a storage tank battery at the entrance or at least one station tank; a connection unit to connect to the external product supply trunk pipeline and/or storage tank battery and oil metering station with filters; a pressure control unit, safety devices, cleaning devices; a receiver/starter unit for the said devices and diagnostic tools. There is also an electrical substation, a system of cold and/or hot water supply and industrial and domestic wastewater drain devices and pipelines, and a boiler house with heat supply pipework. At least one pressure process pipeline and/or hydraulic pipeline for water or heat supply to the said facilities is equipped with at least one hydromechanical mechanism to provide gradual load of the hydraulic system. It is connected to at least one pressure pipeline usually on the pressure side so that on and off operations of the shutoff and/or shutoff and control valves can be automatically prolonged. The hydromechanical device includes the following components that are connected in series with each other: an inlet nozzle; a governor to control the opening speed of the shutoff and/or shutoff and control valves and the load transfer to the hydraulic system; and hydromechanical drive. The latter includes a power chamber with a housing containing at least one variable displacement compartment and a transfer mechanism. The hydromechanical device is double-connected to the pipeline: at the inlet - an inlet nozzle allows it to communicate with the pipeline through working medium; at the outlet - it is kynematically connected by the hydromechanical drive with the locking element of the above-mentioned valves. The movable transfer mechanism is connected to the power chamber through a "piston-rod" or "membrane-rod" connection type. This reduces power inputs for hydraulic systems providing operation of oil pumping station systems.
EFFECT: reduced maintenance and repair costs.
23 cl, 11 dwg
