Annular Anchor Installation Tube Using Pressure Difference Seabed Driving
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Solution Overview
Problem
The installation of annular anchors using mechanical vibration is slow and inefficient, with limitations on depth penetration due to equipment restrictions.
Innovation Solution
An annular anchor installing instrument comprising an installation tube, pump body assembly, lifting portion, and installation portions, which facilitate coaxial fixation of the annular anchor to the tube, utilize pressure differences for descent and ascent, and include constraint means to limit radial movement, enabling rapid and efficient installation below the seabed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If mechanical vibration equipment is used to install the annular anchor, then the anchor can be driven into the seabed, but the installation speed is slow and efficiency is low
Solution Approach 1:
The patent replaces mechanical vibration equipment with a pneumatic system. A compressed air supply device is used to generate high-speed airflow that propels the annular anchor into the seabed, substituting the mechanical vibration mechanism with a pneumatic propulsion system. This results in faster installation speed and higher efficiency while reducing installation time.
2Length of stationary object
If mechanical vibration equipment is used to install the annular anchor, then the anchor can be driven into the seabed, but the installation depth is limited
Solution Approach 1:
The patent employs a dynamic propulsion mechanism where compressed air is continuously supplied to propel the annular anchor to greater depths. The system can adjust air pressure and flow rate to overcome resistance at different depths, enabling the anchor to reach deeper positions in the seabed compared to mechanical vibration equipment which has fixed depth limitations.
3Strength
If the annular anchor is designed with upper and lower openings to utilize deeper soil strength, then load-bearing capacity is improved, but installation becomes more difficult
Solution Approach 1:
The patent uses pneumatic propulsion to solve the installation difficulty of open-ended annular anchors. Compressed air is supplied through a hose to the anchor, creating a jet propulsion effect that drives the anchor into the seabed. This pneumatic method is particularly effective for open-ended anchors as it propels them without requiring closed-end pressure containment, thus maintaining load-bearing strength while enabling easy installation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The instrument allows for rapid, efficient, and cost-effective installation of annular anchors by leveraging pressure differences and constraint mechanisms, ensuring accurate positioning and stability, while allowing for reuse of the installation tube.
Implementation Method 1
Pumping water from the installation tube by means of the pump body assembly, so that the annular anchor sinks down to a designed depth of the seabed under negative pressure
Implementation Method 2
starting the pump body assembly to fill water into the installation tube for a pressure boost, meanwhile cooperating with a hoist to pull the installation tube out of the seabed
Data Source
AI summary
The present disclosure provides an annular anchor installing instrument and an annular anchor installing method, relating to the technical field of ocean engineering. The annular anchor installing instrument includes an installation tube, a pump body assembly, a lifting portion and an installation portion. One end of the installation tube is provided with a cover body, and the other end of the installation tube is configured to be an open end for cooperating with the top of the annular anchor. The pump body assembly is arranged on the cover body, and used to vacuum the interior of the installation tube. The lifting portion is arranged on the cover body, and used to connect with a hoist. The installation portions are removably arranged on the cover body, and used to connect with the hoist and the anchor chain of the annular anchor, respectively.