Application of Pre-stressed Steel Wire-winding Frame Technology in Deep-sea Hydrostatic Pressure Testing Equipment

Abstract

This paper introduces the first application of the technology of pre-stressed steel wire-winding frame in constructing hydrostatic pressure testing equipment for the environment simulation of deep-sea. In December 2015, a 200 MPa medium size ultrahigh pressure cylinder (0.8 m in diameter, 2.5 m in height) was tested experimentally, and the technical indicators met the requirements, which was operated by institute of deep-sea science and engineering, CAS and Sichuan aerospace industry Chuanxi machine Co., Ltd. Then it provided full ocean depth pressure testing support for scaled model of titanium alloy personnel hull, buoyancy material and unmanned underwater vehicle. The results of all the experiments show that the technology of pre-stressed steel wire-winding frame has apparent advantages in constructing large volume and ultrahigh pressure testing equipment compared with traditional technology.