Multi-channel oil-water conveying device and method of arm centrifuge

Abstract

The invention discloses a multi-channel oil-water conveying device and method for an arm type centrifugal machine. A liquid conveying pipeline can adapt to the change of the angle and distance between a hanging basket and a rotating arm before and after the arm type hanging basket centrifugal machine works, and the water-electricity-oil-gas conveying requirement of the centrifugal machine is met; the connecting outlet of the rotating arm moves forwards from the end of the rotating arm to the hanging basket pin shaft, the total length of the hose of the hanging basket part of the centrifugal machine is reduced, the relay reinforcing connector is used for being matched with the reinforcing crosspiece, the hose is effectively reinforced, and the safety of centrifugal machine-hanging basket liquid conveying is greatly improved. The designed hose penetrates through the reinforcing crosspiece instead of being fixed to the reinforcing crosspiece, and the situation that under the constant gravity, a pipeline is too short in the process that the hanging basket rotates relative to the rotating arm, and consequently the pipeline is excessively stretched and fails can be avoided. The pipelines are arranged side by side, so that smooth arrangement of the pipelines can be ensured under the conditions of constant gravity and supergravity; and a hose length calculation method is provided, so that local buckling failure of the hose due to overlength under the supergravity is avoided, and the safety is improved.

Description

technical field [0001] The invention belongs to the field of geotechnical engineering model tests, and in particular relates to a multi-channel oil-water conveying device and method for an arm centrifuge. Background technique [0002] Arm-type geotechnical centrifuge is a kind of test equipment used for physical simulation test of geotechnical engineering. It simulates self-weight stress through centrifugal force generated by high-speed rotation, so that the stress field in the scaled model of rock and soil mass carried in the gondola is different from that of the field. Similar to the size prototype, simulate the force, deformation and failure of the prototype geotechnical structure to verify the design scheme, carry out material parameter research, verify the mathematical model and numerical analysis calculation results, explore new geotechnical engineering physical phenomena, in the field of geotechnical engineering has been widely used. The related experiments currently...

AI Technical Summary

Problems solved by technology

However, the existing high-pressure oil pipes and supporting joints are generally designed to resist internal pressure, and there is no index and capacity for tensile strength. On a centrifuge with large capacity and high centrifugal force, the safety of the basket delivery hose and joints cannot be guaranteed.

With the improvement of the capacity of the experimental device and the increase of the centrifugal force, there is a risk of seal failure or even fracture due to the ultimate failure of the basket delivery hose and joints to withstand the ultra-high centrifugal load

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