scholarly journals Design and Experimental Verification of Pressurized Cylinders in Hydraulic Rubber Hose Pressure Washers

Actuators ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 139
Author(s):  
Xiaoxiao Niu ◽  
Guangfa Hao ◽  
Chengliang Zhang ◽  
Lei Li
Keyword(s):  
High Pressure ◽  
Pressure Chamber ◽  
High Pressure Chamber ◽  
Rubber Hose ◽  
Hydraulic Impact ◽  
Potential Safety ◽  
Outlet Hole ◽  
Pressure Resistance ◽  
Cylinder Barrel ◽  
Pressurized Cylinder

Hydraulic rubber hoses are subject to great hydraulic impact during the actual working process, which causes a great potential safety hazard. Therefore, it is necessary to carry out pressure tests on hose assemblies to ensure its quality, so providing a high pressure for the hydraulic hose has become the key technology of this problem. Aiming at solving the problem of detection of pressure resistance in hydraulic rubber hose cleaning machines, this paper analyzed the pressurization mechanism of the hydraulic pressurized cylinder and proposed a method of continuous pressurization. This paper also theoretically analyzed the pressure expansion of the rubber hose, and the conclusion is that for the maximum hose capacity (hose size is Φ25 mm × 6 m), the volume of water required to provide water in the hose from 10 MPa to 100 MPa is 0.59 L. The pressurized cylinder was designed and checked theoretically and analyzed by the finite element method. It is concluded that the maximum stress of the pressurized cylinder is concentrated at the bottom of the high-pressure chamber, and the outlet hole at the bottom of the cylinder barrel of the high-pressure chamber is the weakest part of the pressurized cylinder. The performance of the supercharging cylinder is verified by experiments, which proves the feasibility, rapidity and stability of the supercharging cylinder.

INVESTIGATION OF PROCESSES IN THE HIGH-PRESSURE CHAMBER OF SHOCK TUBE

2020 ◽  
Author(s):  
N. G. Bykova ◽  
◽  
I. E. Zabelinsky ◽  
P. V. Kozlov ◽  
Yu. V. Tunik ◽  
...  
Keyword(s):  
Shock Wave ◽  
High Pressure ◽  
Shock Tube ◽  
High Energy ◽  
Pressure Chamber ◽  
High Pressure Chamber ◽  
Shock Tubes ◽  
The World

There are several installations with shock tubes in the world, in which a shock wave in air propagates at a speed close to the second cosmic one. Such velocities are achieved by supplying of high energy (~ 1 MJ) to the pushing gas in the high-pressure chamber.

Research on Novel Multi-Way Hydraulic Quick Connector for Underwater Production System

2021 ◽  
Vol 55 (6) ◽  
pp. 129-138
Author(s):  
Hao Wang ◽  
Jiawang Chen ◽  
Hang Zhou ◽  
Xiaoling Le ◽  
Dongrui Ruan ◽  
...  
Keyword(s):  
High Pressure ◽  
Production System ◽  
Oil Production ◽  
Production Equipment ◽  
Pressure Chamber ◽  
High Pressure Chamber ◽  
Element Analysis ◽  
Chemical Reagents ◽  
Working Principle ◽  
Plate Assembly

Abstract The underwater hydraulic connector is one of the most important components of an underwater oil production system. The equipment is mainly used to transport oil, chemical reagents, and other high-pressure fluids. We developed a novel underwater hydraulic multi-way quick connector system (MQCS) that is able to realize simultaneous, rapid, and precise plugging and unplugging of 10 underwater pipelines. It can be widely used for connection between subsea oil production equipment. The MQCS consists of a fixed plate assembly that is fixed to the oil production equipment and a free plate assembly that is connected to the pipelines on the drilling platform. This study describes the structure and working principle of the MQCS in detail. In addition, the process of the elastic collet clamping the mandrel was studied. Based on the finite element analysis software Abaqus, we investigated how the key geometric parameters of the elastic collet influence the axial force that needs to be provided by the underwater robot. A prototype was built based on the simulation results. To verify the performance of MQCS, a high-pressure chamber test was conducted. The results show that MQCS can accurately connect 10 high-pressure lines (about 69 MPa) in a high-pressure chamber and there is no pressure drop for 3 h after docking.

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