Experiment device and method for simulating situation that natural gas pipeline bears vibration and bending moment load
A natural gas pipeline and test device technology, which is applied in the field of test devices for pipeline performance and life testing, can solve problems such as bending and pipeline damage, and achieve the effects of fast response, large hydraulic power, and high precision
Inactive Publication Date: 2016-05-04
SOUTH CHINA UNIV OF TECH
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Problems solved by technology
Due to the complexity of the environment in which the pipeline is used, certain bends may occur during the laying process, and factors such as terrain changes during the use of the pipeline will also cause excessive bending deformation of the pipeline and cause certain damage
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Embodiment
[0037] Such as Figures 1 to 3 shown. The invention discloses a test device for simulating a natural gas pipeline subjected to vibration and bending moment loads, comprising a base 2; external pressure rod assemblies 3 respectively arranged at both ends of the base 2 for providing downward pressure moment to the two ends of the test pipeline 1, To simulate the bending deformation of the test pipeline 1 when it is subjected to a bending moment load;
[0038] There are two groups of hydraulic mechanisms 4 arranged in the middle of the base 2, and the test pipeline 1 is carried on the two groups of hydraulic mechanisms 4 and fixedly connected with them by fasteners; the two groups of hydraulic mechanisms 4 are used to simulate the vibration of the test pipeline 1 status;
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The invention discloses an experiment device and method for simulating a situation that a natural gas pipeline bears vibration and bending moment load. The experiment device comprises a base, external pressure rod assemblies, and two sets of hydraulic mechanisms, wherein the external pressure rod assemblies are respectively arranged at two ends of the base and are used for providing pressure moment for two ends of an experiment pipeline; the hydraulic mechanisms are arranged in the middle of the base; the external pressure rod assemblies are used for simulating the situation that the experiment pipeline bears load when bearing bending moment; the two sets of the hydraulic mechanisms are used for simulating the state that the experiment pipeline bears vibration; one end of the experiment pipeline is sealed, and the other end of the experiment pipeline is connected with a compression system which provides air pressure or hydraulic pressure for the experiment pipeline for simulating gas or liquid conveyed in the natural gas pipeline; the two sets of the hydraulic mechanisms and the compression system are in signal connection with an industrial computer. The experiment device meets requirements for property and life tests of the gas pipeline, and provides an experiment platform for simulating the situation that the gas pipeline bears vertical vibration load and bending moment load for the property and life test project of the gas pipeline.
Description
technical field [0001] The invention relates to a test device for pipeline performance and life testing, in particular to a test device and method for simulating a natural gas pipeline subjected to vibration and bending moment loads. Background technique [0002] With the increasing degree of modernization, the lifeline system has become increasingly complex, and the natural gas pipeline system is one of the important systems. Due to the complexity of the environment in which the pipeline is used, certain bends may occur during the laying process, and factors such as terrain changes during the use of the pipeline will also cause excessive bending deformation of the pipeline and cause certain damage. In addition, the pipeline has been subjected to long-term vibration loads caused by factors such as road and underground vehicles or engineering construction, and external forces such as earthquakes can also cause pipeline vibration, which will have a great impact on the fatigue ...
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IPC IPC(8): G01N3/20G01N3/12G01N3/36
CPCG01N3/12G01N3/20G01N3/36
Inventor 曲杰岳凯
Owner SOUTH CHINA UNIV OF TECH
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