Submarine pipeline complex load joint loading test device

A technology of combined loading and complex loading, applied in measuring devices, instruments, scientific instruments, etc., can solve the problems of single external load, inability to realize local stability test, and inability to realize the joint action of multiple loads, and achieve safety calibration. nuclear effect
CN105806694BInactive Publication Date: 2018-06-12TIANJIN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TIANJIN UNIV
Publication Date
2018-06-12
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a combined loading testing device for complex loads of submarine pipelines. The combined loading testing device comprises an end cover (1-1), a cylinder end part (1-6), a cylinder main body (1-5) and a cylinder tail (1-12), wherein a front-end sealing flange (1-15) and a tail-end sealing flange (1-19) are welded to two ends of a testing pipe fitting (1-16), respectively, holes are formed in the top and the side part of the cylinder main body (1-5), respectively, and vibrating devices (1-10) are mounted at the two holes and are used for applying vibrating loads to the testing pipe fitting along the radial direction; an axial force-torque combined loading device is connected to the cylinder tail (1-12) through a connecting assembly (1-13); the tail-end sealing flange (1-19) is connected with a connecting shaft (1-21) through a tail-end connecting assembly (1-23), and the connecting shaft (1-21) stretches out of a cylinder and is connected with the axial force-torque combined loading device. According to the combined loading testing device, the approximate simulation of deepwater pipelines and vertical pipes under different limiting conditional loads is provided.
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Description

technical field

[0001] The invention relates to a combined loading test device for complex loads of submarine pipelines, which can realize the joint action of axial tension and compression, vibration, torque and external pressure loads on a scaled pipeline test piece, and approximate simulation of submarine pipelines and standpipes in the test. The real operating environment during installation and service enables in-depth exploration of the failure modes of deepwater pipelines and risers under different load combinations. Background technique

[0002] Energy security and the core competitiveness of the world economy are increasingly dependent on the utilization and development of marine resources. However, my country's offshore oil and gas exploration and development technology still has a large gap compared with the world's advanced level. It is necessary to accelerate the innovation of deep-sea oil and gas development technology and enter the "deep-sea era".

[0003] Amo...

Claims

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