A double anti-blocking pile flushing device and method for a self-elevating platform with hydraulic opening and closing

A self-elevating platform and anti-blocking technology, which is applied to sheet pile walls, water conservancy projects, underwater structures, etc., can solve the problems of pile flushing pipelines, seabed sediment blockage, etc., and achieve the effect of improving performance and simple and reliable structure

Active Publication Date: 2020-09-18
XI'AN PETROLEUM UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an anti-blocking device and method for hydraulically opening and closing the pile mouth, so as to solve the problem that the pile flushing pipeline is blocked by seabed sediment when the jack-up platform pile boot penetrates into the seabed

Method used

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  • A double anti-blocking pile flushing device and method for a self-elevating platform with hydraulic opening and closing
  • A double anti-blocking pile flushing device and method for a self-elevating platform with hydraulic opening and closing
  • A double anti-blocking pile flushing device and method for a self-elevating platform with hydraulic opening and closing

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Embodiment 1

[0036] Such as figure 1 As shown, a double anti-blocking pile flushing device of a hydraulic opening and closing self-elevating platform of the present invention includes:

[0037] The end cover 2, the top surface of the end cover 2 is provided with a sliding groove 1 along the axial direction, and the top surface of the end cover 2 is provided with a plurality of water inlet holes 7 along the circumference of the sliding groove 1; the inside of the side wall of the end cover 2 is provided with a positioning card 4;

[0038] A protective cover 11, the protective cover 11 is sealed and connected with the lower end of the end cover 2;

[0039] The anti-blocking valve pipe 3, the anti-blocking valve pipe 3 includes a storage fluid 15 and a sliding column 14, one end of the storage fluid 15 is closed, and the other end is open, the sliding column 14 is connected to the closed end of the storage fluid 15, and the sliding column 14 is installed In the sliding groove 1, the open en...

Embodiment 2

[0053] Such as figure 1 As shown, a hydraulic opening and closing self-elevating platform double anti-blocking pile flushing device mainly includes five parts such as an end cover 2, an anti-blocking valve pipe 3, a return spring, a sliding packing piece 8, and a protective cover 11. The end cover 2 is fixed on the pile flushing pipeline, and is in close contact with the anti-blocking valve pipe 3 through the first return spring 6, wherein the cylindrical joint at the upper end of the anti-blocking valve pipe 3 is located in the cylindrical groove reserved by the end cover 2; the sliding packing piece 8 is in close contact with the positioning card 4 and the second return spring 10, and is in vertical position higher than the four water inlets provided with the anti-blocking valve pipe 3, and is in close contact with it; the protective cover 11 is connected with the end cover 2 through threads, and In close contact with the anti-blocking valve tube 3.

[0054] Working process...

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Abstract

The invention discloses a dual anti-blocking pile washing device and method of a hydraulic opening / closing self-elevating platform. A sliding groove is axially formed in the top surface of an end cover; multiple water inlet holes are formed in the top surface of the end cover around the sliding groove; a positioning clamp is arranged in the side wall of the end cover; a protective cover is connected with the lower end of the end cover in a sealed manner; an anti-blocking valve pipe comprises a fluid storage body and a sliding column; the sliding column is connected with a closing end of the fluid storage body; the sliding column is mounted in the sliding groove; an opening end of the fluid storage body extends into the protective cover; a first return spring is arranged between the end part of the fluid storage body and the end cover; multiple water inlets are formed in the fluid storage body in the circumferential direction; a sliding separation piece sleeves the anti-blocking valve pipe, and the upper end part of the sliding separation piece is limited through the positioning clamp; and a second return spring is arranged between the sliding separation piece and the protective cover. The pile washing device is simple and reliable in structure, needs no wearable part, and greatly improves the performances.

Description

technical field [0001] The invention relates to the technical field of offshore oil exploitation, in particular to a double anti-blocking pile flushing device and method for a hydraulically opened and closed self-elevating platform. Background technique [0002] Jack-up platforms are one of the most widely used platform types for offshore oil and gas resource development. After the operation of the self-elevating platform is completed, it is necessary to lower the boat and pull out the piles to go to the next operation point. Due to the complex properties of the seabed soil, when the platform piles are inserted too deep into the mud or the soil returns, the resistance to pulling out the piles on the platform is too large If it is difficult to pull out the piles, it is necessary to carry out pile flushing operations to reduce the adsorption force of the soil on the pile boots and ensure the smooth pile pulling out of the platform. However, when the platform spud boot penetra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02B17/00E02D9/02
CPCE02B17/00E02D9/02
Inventor 赵军孙福泰余佩蓉杨怡飞朱晓栋
Owner XI'AN PETROLEUM UNIVERSITY
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