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Pressure load simulating system suitable for deep-sea equipment hydraulic system and application thereof

A hydraulic system and load simulation technology, which is applied in fluid pressure actuation system components, fluid pressure actuation system testing, fluid pressure actuation devices, etc. It can solve the problem of not considering the nonlinear change of seawater pressure and the inability to simulate the hydraulic system pressure load Non-linear changes and other problems to achieve the effect of improving control accuracy

Active Publication Date: 2019-09-03
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing deep-sea pressure simulation systems do not consider the nonlinear change of seawater pressure caused by the change of seawater density, so it is impossible to simulate the nonlinear change of hydraulic system pressure load.

Method used

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  • Pressure load simulating system suitable for deep-sea equipment hydraulic system and application thereof
  • Pressure load simulating system suitable for deep-sea equipment hydraulic system and application thereof
  • Pressure load simulating system suitable for deep-sea equipment hydraulic system and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A pressure load simulation system suitable for hydraulic systems of deep sea equipment, such as figure 1 As shown, it includes piston hydraulic cylinder 1, three-position four-way reversing valve 2, working pressure gauge 3, working pressure transmitter 4, quick-change joint 5, working pressure regulating valve 7, controller 9, filter 11, First motor 12, first hydraulic pump 13, first one-way valve 14, accumulator 15, unloading valve 16, throttle valve 17, input pressure transmitter 19, input pressure gauge 20 and piston displacement sensor 22;

[0047] The first hydraulic pump 13 is connected with the first oil tank 10 through the filter 11, the first hydraulic pump 13 is connected with the first motor 12, and the first hydraulic pump 13 is respectively connected with the accumulator 15, throttling valve 14 through the first check valve 14. The valve 17, the unloading valve 16 and the first cut-off valve 8, the unloading valve 16 and the first cut-off valve 8 are all c...

Embodiment 2

[0051] A pressure load simulation system suitable for deep-sea equipment hydraulic systems, the structure is as shown in Embodiment 1, the difference is that the throttle valve 17 is an adjustable throttle valve, which can adjust the flow of hydraulic oil entering the piston hydraulic cylinder, So as to match the flow rate of the hydraulic system under test;

[0052] The three-position four-way reversing valve 2 can control the movement direction of the piston in the piston hydraulic cylinder 1, thereby controlling the hydraulic oil reserves inside the two chambers of the piston hydraulic cylinder, which is convenient for the use of the test system;

[0053] The maximum pressure of the hydraulic oil output by the first hydraulic pump 13 can reach 31.5MPa, the maximum working pressure of the accumulator 15 can reach 31.5MPa, the maximum adjustment pressure of the unloading valve 16 and the working pressure regulating valve 7 is 31.5MPa, the piston type hydraulic pressure The ma...

Embodiment 3

[0055] A pressure load simulation system suitable for hydraulic systems of deep sea equipment, such as image 3 As shown, the structure is as shown in Embodiment 2, the difference is that the piston hydraulic cylinder is a single-acting hydraulic cylinder 23, the first hydraulic pump is a pressure compensation hydraulic pump 24, and the two sides of the piston in the piston hydraulic cylinder are used to contact the hydraulic pressure. Depending on the oil area, changing the proportional relationship between the input pressure value and the output pressure value can use a smaller input pressure to obtain a larger output pressure; using the pressure compensation function of the hydraulic pump can improve the piston movement in the piston hydraulic cylinder. When the output pressure stability.

[0056] The pressurization ratio of the single-acting hydraulic cylinder 23 is 2:1-5:1, and the maximum pressure simulation of 40MPa-100MPa can be realized.

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Abstract

The invention relates to a pressure load simulating system suitable for a deep-sea equipment hydraulic system and application thereof, and belongs to the technical field of marine equipment detecting.The system comprises a piston hydraulic cylinder, a three-position four-way switching valve, a working pressure meter, a working pressure transmitter, a rapid switching joint, a working pressure regulating valve, a controller, a filtering device, a first motor, a first hydraulic pump, a first one-way valve, an energy accumulator, an unloading valve, a throttle valve, an input pressure transmitter, an input pressure meter and a piston displacement sensor; the controller is electrically connected with the working pressure adjusting valve, the unloading valve, the input pressure transmitter, thepiston displacement sensor and the working pressure transmitter. The system can be applied to the detection of the deep-sea equipment hydraulic system and suitable for the load simulation of the deep-sea equipment hydraulic system which acquires power depending on volume variation, non-linear regulations of sea water pressure along with sea water depth can be simulated, and the simulation is closer to the real condition of the sea.

Description

technical field [0001] The invention relates to a pressure load simulation system suitable for deep-sea equipment hydraulic systems and an application thereof, belonging to the technical field of marine equipment detection. Background technique [0002] With the development of marine scientific research and resource utilization, the scope of human exploration of the ocean is becoming wider and wider. In the field of deep-sea development, deep-sea equipment has become a necessary supporting condition for exploring the ocean. Because the hydraulic system has the advantages of flexible layout and high power density, deep-sea equipment generally uses hydraulic systems to transmit power. When testing deep-sea equipment, the reliability of the hydraulic system is usually tested by simulating the deep-sea high-pressure environment on land to reduce the test cost. [0003] At present, the deep sea pressure simulation chamber is widely used in the pressure test of deep sea equipmen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B19/00F15B21/041
CPCF15B19/007F15B21/041
Inventor 薛钢刘延俊李世振吉晨郭凤祥李志彤司伟伟
Owner SHANDONG UNIV
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