A control method and system for a hydraulic submersible pump

Abstract

The invention discloses a control method and system of hydraulic immersed pumps and belongs to the technical field of automatic control. The method comprises the steps that a crude oil exportation command is received, wherein the crude oil exportation command comprises pressure required values of the hydraulic immersed pumps needing to be started; the pressure required values of all the hydraulicimmersed pumps are determined as the pressure values of branch pressure regulating valves corresponding to the hydraulic immersed pumps; the pressure value of a system pressure regulating valve is determined according to the pressure values of the branch pressure regulating valves; the number of main pumps needing to be started is determined according to the pressure values of the branch pressureregulating valves; and the corresponding number of main pumps are started according to the number of the main pumps needing to be started, the system pressure regulating valve and the branch pressureregulating valves are regulated, the pressure value of the system pressure regulating valve is kept to be the determined pressure value of the system pressure regulating valve, and the pressure valuesof the branch pressure regulating valves are kept to be pressure values of the determined pressure values of the branch pressure regulating valves. According to the control method and system of the hydraulic immersed pumps, working staff do not need to operate handles according to prior experience.

Description

technical field [0001] The invention relates to the technical field of automatic control, in particular to a control method and system for a hydraulic submersible pump. Background technique [0002] Floating production storage and offloading device (English: Floating Production Storage and Offloading, referred to as: FPSO) is used to separate oil and gas from the exploited oil, treat oily sewage, power generation, heat supply, storage and transportation of crude oil products, and gather personnel to live The comprehensive large-scale offshore oil production base integrated with the production command system can process the mixed liquid of oil, gas and water from the oil well into qualified crude oil or natural gas. transport system to shuttle tankers. [0003] FPSO is mainly composed of mooring system, carrier system, production process system and export system. Hydraulic submersible pump is an important power equipment of FPSO export system. The driving system of the hydr...

AI Technical Summary

Problems solved by technology

[0005] In the actual implementation, multiple main pumps need to be turned on to jointly drive multiple hydraulic submersible pumps. At present, the staff use the handle to open a certain number of main pumps and control the pressure regulating valves to match the hydraulic submersible pumps. The matching effect cannot be guaranteed, and the operation method is complicated, and the handle is easily damaged

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