Pressure balance rotating device and pressure balance method

• Main Authors: LI SONGYU, YU GUANGAN, CAO YANG, DU XINGUANG, HOU JIAYI, CHEN KEN
• Format: Patent
• Language: Chinese; English
• Published: 03.10.2023
• Subjects: BLASTING; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR; FLUID-PRESSURE ACTUATORS; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS; HEATING; HYDRAULICS OR PNEUMATICS IN GENERAL; LIGHTING; MECHANICAL ENGINEERING; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; WEAPONS

The invention relates to a pressure balance rotating device and a pressure balance method. The pressure balance rotating device comprises an upper cylinder body and a lower cylinder body which are coaxially arranged, and a piston is arranged in the lower cylinder body in a penetrating mode; the upper cylinder body is communicated with the lower cylinder body to form an upper cavity between the upper cylinder body and the lower cylinder body and a lower cavity between the lower cylinder body and the piston, an inner ring sealing assembly and an outer ring sealing assembly are installed in the upper cavity, and a coaxiality maintaining assembly is installed between the inner ring sealing assembly and the outer ring sealing assembly; and the upper cavity and the lower cavity are hermetically isolated from the external environment. The pressure-resistant cabin can meet the requirements of the pressure-resistant cabin on sealing and rotation. The upper cylinder body and the lower cylinder body can rotate relativel