Hydraulic lifting pile righting guide device for offshore jack-up platform

Abstract

A hydraulic lifting pile righting guide device for offshore jack-up platform includes a platform support pile, a platform lifting oil cylinder, a lifting ring girder, upper and lower hydraulic bolts, and a fixed lower ring girder. A righting guide sleeve is fitted outside the platform support pile, the lifting ring girder is fitted outside the righting guide sleeve and fixed with the righting guide sleeve, the fixed lower ring girder is fitted outside the platform support pile, the lifting ring girder and the fixed lower ring girder are connected by the platform lifting oil cylinder, the fixed lower ring girder is fixed on the platform body, matching bolt holes are processed at the platform support pile and the righting guide sleeve, the hydraulic bolts are evenly distributed and mounted at the circumferences of the lifting ring girder and the fixed lower ring girder, and a righting adjustment roller group is mounted outside the righting guide sleeve. As a result, the platform support pile is limited in up-and-down movement and can only operate according to the design requirements of people to therefore reduce inclination of the platform support pile, reduce resistance to pile insertion and pullout and improve working efficiency. The invention falls into the field of design and manufacturing process of jack-up platform lifting systems for exploration and exploitation of offshore oil.

Description

Technical field: [0001] The invention relates to an uprighting and guiding device for a hydraulic lifting pile of an ocean self-elevating platform, which belongs to the field of ocean engineering. technical background: [0002] The traditional hydraulic lifting ring beam of the previously designed marine jack-up platform has a large righting between the platform support pile; for example 1: There are 2 pile holes processed on the cross-section of the platform support pile, and the longitudinal surface and bottom are also uniformly processed. When there are two rows at a certain distance, in the process of inserting and pulling out piles on the platform, when the piles are tilted, the pile holes and the piles will be inclined to rub against each other, resulting in an increase in the resistance of the piles to be inserted and pulled out; and sometimes due to the inclination of the supporting piles , so that the upper hydraulic pin of the lifting ring beam and the lower hydra...

AI Technical Summary

Problems solved by technology

[0002]The traditional hydraulic lifting ring beam of the previously designed marine jack-up platform and the support pile of the platform have relatively large righting; for example 1: the cross section of the platform support pile is processed with When the two pile holes are evenly distributed on the longitudinal surface and the bottom, and there are two rows with a certain distance, in the process of inserting and pulling out piles on the platform, when the pile tilts, the pile hole and the pile tilt and rub against each other, causing the insertion , Pile pulling resistance increases; and sometimes due to the inclination of the supporting pile, the upper hydraulic pin of the lifting ring beam and the lower hydraulic pin of fixing the lower ring beam deviate from the pile hole of the supporting pile, which makes it difficult to insert and pull out the pile on the platform

For example 2: when there are 4 pile holes processed on the cross-section of the platform support pile, and 4 rows with a certain distance are also uniformly distributed on the longitudinal surface and bottom, when the pile is tilted during the process of inserting and pulling out the pile on the platform, The above-mentioned pile holes and piles are inclined to rub against each other, resulting in increased resistance to inserting and pulling out piles; and sometimes due to the inclination of the supporting piles, the upper hydraulic pin of the lifting ring beam and the lower hydraulic pin of fixing the lower ring beam deviate from the position of the supporting pile. Pile holes make it difficult to insert and pull out piles on the platform, and there is no other righting guide device

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