Continuous pressurization system with adjustable pressurization rate and control method thereof

Abstract

The invention discloses a continuous pressurization system with an adjustable pressurization rate and a control method of the continuous pressurization system. The continuous pressurization system can meet ultrahigh-pressure large-flow use working conditions and realize continuous pressurization with adjustable pressurization rate of a hydraulic system, and structurally comprises a power source, an energy storage device, a hydraulic control execution unit, a high-level oil tank and a measurement and control system; the power source and the energy storage device provide required large-flow high-pressure hydraulic oil for the hydraulic control execution unit; the energy storage device comprises a piston type energy accumulator group and a nitrogen cylinder group; two pressure cylinders are arranged in the hydraulic control execution unit to realize reciprocating alternation and common pressurization, so that a continuous pressurization process is realized; and the high-level oil tank device is installed above the whole pressurization system equipment, and the measurement and control system achieves electrical control and testing. The oil supply flow and the movement speed of the pressure cylinders and the actuator can be accurately controlled, so that the pressurizing speed is accurately regulated and controlled; and the continuous pressurization system is an expansible technical innovation for the prior art, and has good popularization and use values.

Description

technical field [0001] The invention relates to an adjustable continuous pressurization technology, in particular to a continuous pressurization system with adjustable pressurization rate. Background technique [0002] With the rapid development of the national economy, various types of machinery have been widely used. In the mechanical drive process, the hydraulic system is more widely used. Especially in heavy-duty application scenarios, the development of hydraulic technology is increasingly inclined to high-pressure and ultra-high pressure. [0003] In the field of hydraulic technology, the working pressure greater than 320bar is generally called ultra-high pressure. The pressure used in hydraulic tools, powder metallurgy, pressure test equipment, large presses, pressure vessels and other equipment is usually around 1000bar. In the ultra-high pressure range, 630bar, 700bar and 800bar are currently the most widely used abroad. Countries such as Britain, the United Sta...

AI Technical Summary

Problems solved by technology

However, the flow rate of the pumps is relatively small. Due to the technical difficulty of ultra-high pressure technology, it has not yet developed into a large flow series.

[0004] The existing technology mainly eliminates the hydraulic impact of the supercharger during the reversing process. Although it has the advantages of smooth and fast unloading during the supercharging process, due to poor controllability, it cannot meet the requirements of ultra-high pressure and large flow conditions. The need for pressure rate regulation

Images