公开(公告)号：US11105721B1

公开(公告)日：2021-08-31

申请号：US17273598

申请日：2019-08-26

Applicant: JIANGSU UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Yun Chen ,  Jian Zhang ,  Si Zhang ,  Wenxian Tang ,  Yueyang Wang ,  Zhengdao Hua ,  Baoji Yin ,  Yongmei Zhu

IPC: G01N3/12

Abstract: A complex pressure environment test device, comprising a test table and a hydraulic control system. The test table comprises a base for fastening a closure head under test, and an outer cover; the base has water inlets and outlets. The hydraulic control system comprises a watering hydraulic pump, a pressurizing hydraulic pump, and a pilot-operated overflow valve; the watering hydraulic pump is separately connected to a first two-position two-way valve and a second two-position two-way valve; the second two-position two-way valve is connected to a second one-way valve; the second one-way valve is separately connected to a water inlet and a first pilot-operated pressure regulating valve; the first pilot-operated pressure regulating valve is separately connected to a first remote pressure regulating valve and a first one-way valve. There is also a hydraulic circuit is present and used for testing.

公开(公告)号：US11727165B2

公开(公告)日：2023-08-15

申请号：US17996241

申请日：2021-04-16

Applicant: JIANGSU UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Jian Zhang ,  Rui Wang ,  Chenyang Di ,  Wenxian Tang ,  Xin Wang ,  Baoji Yin ,  Shijie Su ,  Yongmei Zhu

IPC: G06F30/15 ,  G06F119/14

CPC classification number: G06F30/15 ,  G06F2119/14

Abstract: A pressure-resistant hull for a submersible, includes unit hulls, reinforcing ribs, connecting channels, and closure heads. A plurality of unit hulls are provided, and are sequentially strung together spiralling upward or spiralling downward, the closure heads being arranged on the unit hulls at the first position and the last position respectively, an observation window being provided on each unit hull respectively, adjacent two unit hulls in a horizontal direction being respectively connected by means of a reinforcing rib, and at least two connecting channels being provided between adjacent two rings of the unit hulls in the vertical direction. The design method includes using a spiral joining structure to facilitate organic adjustment of the number of unit hulls, thus having better utilization of space and aiding to greatly expand the space. The sensitivity of the limit load to defects is low, increasing axial rigidity, improving the overall pressure-resistive ability.