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.