Complex pressure environment test device

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.

Description

BACKGROUND OF THE INVENTIONField of the Invention[0001]The present invention relates to a pressure resistance test device for diving equipment, and particular to, a complex pressure environment test device.Description of Related Art[0002]In February 2016, China published the Law on the Exploration and Development of Resources in Deep Seabed Areas, to legally support the research and development of deep-sea scientific and technological equipment including deep-sea submersibles. Moreover, a closure head, as a seal protection device for an opening, such as an outlet, an inlet, or an observation window, on a pressure hull of a submersible, plays a vital role in safety of the submersible, and a device capable of accurately simulating a water pressure environment of the closure head is of profound significance in design and development of the closure head.[0003]The existing test pressure devices are mainly classified into two types:[0004]One type is mechanical pressurization, which is mai...

AI Technical Summary

Benefits of technology

The patent describes a hydraulic control solution for testing the closure head of a container. The solution includes using different hydraulic valves to relieve and maintain pressure inside and outside of the closure head. The closure head can be mounted on a table without a heavy base plate, making it easy to disassemble and replace. The testing process can be observed through a transparent window on the table, and the closure head is in three-segment contact with the table, ensuring reliable sealing and stability during testing. The installation between the closure head and the table includes pre-locating, radial clamping, and normal-direction pressing to ensure uniform pressure distribution and safe testing. The technical effects of the invention include simplified testing procedures, improved accuracy, reliability, and safety.

Problems solved by technology

Simulation of a pressure on the closure head is not accurate enough.

In addition, it is difficult to simulate that a real underwater closure head is subject to a pressure.

A test device of this type can more accurately simulate that the closure head is subject to a pressure underwater, but most devices of this type distribute external pressures uniformly, and cannot simulate that the closure head is subject to an internal pressure or internal and external pressures at the same time.

In addition, it is difficult to simulate that the closure head is subject to a complex changed water pressure.

In addition, when the device of this type simulates a pressure, a bottom of the closure head needs to be sealed with a thick steel plate, which increases preparations for testing on the closure head, and it is difficult to recycle the steel plate, which increases test costs.

In addition, the thick steel plate greatly increases the overall mass of the closure head.

During testing, it is relatively difficult to place and take out the closure head.

Therefore, the device of this type has specific limitations.

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