Performance testing device and method for rotary joint of LNG conveying system with horizontal structure
A technology of rotary joints and conveying systems, which is applied in the testing of machines/structural components, measuring devices, testing of mechanical components, etc., and can solve problems such as lack of testing methods
Pending Publication Date: 2021-05-18
CNOOC GAS & POWER GRP
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Problems solved by technology
In the existing technology, the performance evaluation of the rotary joint after processing and manufacturing is mostly carried out by the processing and manufacturing manufacturer's own experience, and there is a lack of corresponding testing methods
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[0036] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0037] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer" and the like are based on the orientation or positional relationship shown in the accompanying drawings, and are only for It is convenient to describe the present invention and simplify the description, but does not indicate or imply that the system or el...
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The invention relates to a performance testing device and method for a rotary joint of a LNG low-temperature conveying system with a horizontal structure, which comprises a mounting support, a low-temperature medium circulating mechanism which is connected with a first flange and a second flange of the rotary joint and is configured to inject a low-temperature medium into the rotary joint, a bending moment applying mechanism configured to apply a bending moment to the rotary joint, an axial load applying mechanism configured to apply an axial load to the rotary joint, a radial load applying mechanism configured to apply a radial load to the rotary joint, and a circumferential rotation driving mechanism configured to drive the rotary joint to do reciprocating alternate motion clockwise and anticlockwise in the circumferential direction. According to the invention, the operation performance of the rotary joint can be scientifically and quantitatively measured, and especially the fatigue condition of the rotary joint in the long-period operation process can be evaluated, so that the safety and reliability of the rotary joint of the LNG rigid unloading arm or the LNG low-temperature hose in the operation process are guaranteed.
Description
technical field [0001] The invention relates to a performance testing device and method of an LNG conveying system, in particular to a performance testing device and method suitable for an LNG rigid unloading arm or an LNG cryogenic hose rotary joint. Background technique [0002] my country's South China Sea has more than 100 billion tons of oil equivalent oil and gas resources, of which natural gas resources account for 83%, and 70% of the natural gas resources come from deep water areas 500 kilometers away from the mainland of my country. How to economically and effectively develop the deep sea natural gas resources in the South China Sea has become a One of the focuses of attention. [0003] LNG receiving terminals can be divided into land receiving terminals and sea receiving terminals. Land receiving terminals have been widely used around the world, and are still developing rapidly with the increase of natural gas demand. Offshore LNG receiving terminal is a new form ...
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IPC IPC(8): G01M13/00
CPCG01M13/00
Inventor 杨亮刘淼儿宋坤许佳伟范嘉堃毕晓星陈海平李欣欣张彧
Owner CNOOC GAS & POWER GRP