Piston type accumulator

Abstract

The invention discloses a piston type accumulator comprising a cylinder block, an oil-side end cover, a gas-side end cover, a piston, a central casing pipe and a displacement sensor; the oil-side endcover and the gas-side end cover are arranged on the cylinder block, and the piston is located in the cylinder block; the central casing pipe is connected among the center of the oil-side end cover, the center of the piston and the center of the gas-side end cover in sequence; the displacement sensor is located in the central casing pipe. By adopting the central casing pipe, on one hand, the concentricity requirements in the working process of the piston are met, and on the other hand the displacement sensor can be protected; and the piston type accumulator facilitates replacement of the displacement sensor. According to the piston type accumulator stated in the invention, the structure and functions of a conventional piston accumulator can be reserved, and the piston displacement monitoring can be achieved; the structure is simple and stable, and the service life is long; and the requirements that the field working conditions of the piston displacement need to be monitored are met.

Description

Technical field [0001] The invention relates to the technical field of hydraulic equipment, in particular to a piston type accumulator. Background technique [0002] The accumulator is an energy storage device in the hydraulic pneumatic system. It converts the energy in the system into compression energy or potential energy at an appropriate time and stores it. When the system needs it, it converts the compression energy or potential energy into hydraulic or pneumatic energy and releases it to replenish the system. When the system instantaneous pressure increases, it can absorb this part of the energy to ensure that the pressure of the entire system is normal. [0003] At present, piston-type accumulator products generally do not have the functions of piston position measurement and display displacement. In engineering applications, the piston position cannot be fed back in real time, so that the working state of the accumulator cannot be accurately judged, and certain control req...

AI Technical Summary

Problems solved by technology

[0003] At present, the piston accumulator products generally do not have the function of measuring the piston position and displaying the displacement. In engineering applications, the piston position cannot be fed back in real time, so that the working status of the accumulator cannot be accurately judged. For those that cannot meet certain control requirements

Especially in offshore engineering equipment, the accumulator needs to monitor the position of the piston in real time, but the existing inspection equipment is cumbersome and inefficient, and cannot meet the requirements of on-site working conditions

Images