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A Static Load Simulation Detection Method of Offshore Platform Hydraulic Lifting Mechanism

A lifting mechanism and offshore platform technology, applied in the field of offshore platform lifting system testing, can solve the problems of high detection difficulty, low detection efficiency, and high error rate, and achieve the effects of improving safety and reliability, reducing detection costs, and improving detection efficiency

Active Publication Date: 2019-06-04
KEEN OFFSHORE ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the complex and changeable offshore environment, the offshore operation platform is always affected by the impact of wind current, ocean current and ups and downs. Therefore, before installing the hydraulic continuous lifting mechanism of the offshore platform on the offshore lifting platform, a simulation test is required to test the various performances of the lifting device. However, the current simulation test detection method for the lifting mechanism of the offshore platform is usually only to detect the maximum load value of the lifting mechanism. The detection method is complicated, the detection is difficult, the detection efficiency is low and the detection cost is high. And There are still some performances that are difficult to meet the accurate detection standards. The detection performance is relatively single, the detection results fluctuate greatly, the error rate is high, and the detection accuracy is unstable. High Performance Guarantee Requirements

Method used

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  • A Static Load Simulation Detection Method of Offshore Platform Hydraulic Lifting Mechanism
  • A Static Load Simulation Detection Method of Offshore Platform Hydraulic Lifting Mechanism
  • A Static Load Simulation Detection Method of Offshore Platform Hydraulic Lifting Mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Example 1 - Detection of the pre-ballast load capacity of the lifting mechanism

[0054] Preparation before the test:

[0055] The factory test is carried out in the inner field of the workshop. The 5-meter range of the test area keeps the passageway smooth, and maintains sufficient ventilation and lighting; the test products, testing machines, electric control boxes, etc. are inspected by special personnel to ensure reliable connection of each position; Obstacles are properly removed; the test area is guarded and isolated, and irrelevant personnel are strictly prohibited from entering.

[0056] experiment procedure:

[0057] (1) Test preparation: use the detection device of the hydraulic lifting mechanism to detect, start the detection device and the hydraulic station;

[0058] (2) Action state adjustment: fully stretch out the piston rod of the lifting cylinder 6 of one lifting mechanism to be measured; the piston rod of the lifting cylinder 6 of another lifting mec...

Embodiment 2

[0061] Example 2 - Detection of the maximum static holding load capacity of the lifting mechanism

[0062] Preparation before the test:

[0063] The factory test is carried out in the inner field of the workshop. The 5-meter range of the test area keeps the passageway smooth, and maintains sufficient ventilation and lighting; the test products, testing machines, electric control boxes, etc. are inspected by special personnel to ensure reliable connection of each position; Obstacles are properly removed; the test area is guarded and isolated, and irrelevant personnel are strictly prohibited from entering.

[0064] experiment procedure:

[0065] (1) Test preparation: use the detection device of the hydraulic lifting mechanism to detect, start the detection device and the hydraulic station;

[0066] (2) Action state adjustment: fully stretch out the piston rod of the lifting cylinder 6 of one lifting mechanism to be measured; the piston rod of the lifting cylinder 6 of another ...

Embodiment 3

[0069] Example 3 - Detection of the storm load capacity of the lifting mechanism

[0070] Preparation before the test:

[0071] The factory test is carried out in the inner field of the workshop. The 5-meter range of the test area keeps the passageway smooth, and maintains sufficient ventilation and lighting; the test products, testing machines, electric control boxes, etc. are inspected by special personnel to ensure reliable connection of each position; Obstacles are properly removed; the test area is guarded and isolated, and irrelevant personnel are strictly prohibited from entering;

[0072] experiment procedure:

[0073] (1) Test preparation: use the detection device of the hydraulic lifting mechanism to detect, start the detection device and the hydraulic station;

[0074] (2) Action state adjustment: fully stretch out the piston rod of the lifting cylinder 6 of one lifting mechanism to be measured; the piston rod of the lifting cylinder 6 of another lifting mechanism...

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Abstract

A static load simulation detection method of a hydraulic lifting mechanism of an offshore platform, using a detection device of the hydraulic lifting mechanism, the detection method includes: (1) starting the detection device and a hydraulic station; (2) using a lifting mechanism to be tested The piston rod of the lifting cylinder is fully stretched out; the piston rod of the lifting cylinder of the other lifting mechanism to be tested is fully compressed; the locking pin connecting the box body is inserted into the second pin hole to fix; (3) the piston rod fully stretched out to the piston rod The rodless cavity of the lifting cylinder of the lifting mechanism to be tested is gradually pressurized, and the rod cavity is in an unloaded state without pressure; the rodless cavity and the rod cavity of the lifting cylinder of the lifting mechanism to be tested are both unloaded and unloaded state; (4) maintain pressure under load, check and judge the lifting mechanism to be tested with the piston rod fully stretched out and record; the static load simulation detection method of the lifting mechanism proposed by the present invention has high detection efficiency, low cost and easy steps The characteristics of simplicity and low detection difficulty.

Description

technical field [0001] The invention relates to the technical field of testing an offshore platform lifting system, in particular to a static load simulation detection method for a hydraulic lifting mechanism of an offshore platform. Background technique [0002] The lifting system of the offshore platform is the key part of the self-elevating offshore operation platform. The lifting mechanism drives the legs of the platform to move up and down to realize the lifting of the offshore operation platform. The operation platform is lifted to the specified height on the sea surface and then ballasted, so that the legs are firmly positioned on the seabed; when the operation is completed and the voyage is completed, the offshore operation platform is lowered to the sea level, and the legs are pulled out, and the legs are always raised during the return process . [0003] Due to the complex and changeable offshore environment, the offshore operation platform is always affected by t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M99/00E02B17/08
CPCE02B17/0809G01M99/007
Inventor 陆军苏伟民李光远吴平平张静波马振军
Owner KEEN OFFSHORE ENG CO LTD