Annular Anchor Recycling via Hydraulic Pressure Differential
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Solution Overview
Problem
The existing annular anchor recycling process is inefficient due to the need for excessive pulling force and slow speed when lifting anchors installed below the seabed, which results in low efficiency and environmental impact.
Innovation Solution
An annular anchor recycling instrument featuring a recycling tube with a cover body, pump body assembly, lifting portion, and installation portions that allow the anchor to be coaxially fixed and lifted using a hoist, with constraint means to prevent radial movement and ensure stability, facilitating efficient and noise-reduced retrieval without penetrating the seabed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a hoist provides a pulling force for lifting the annular anchors installed below the seabed, then the anchors can be retrieved, but the pulling force is excessively big with slow speed and low efficiency
Solution Approach 1:
The patent introduces a recycling tube as an intermediary device that encloses the annular anchor. By pumping water into the tube, the system creates a pressure differential that assists in lifting the anchor, rather than relying solely on direct mechanical pulling force from the hoist. This mediator (recycling tube with water pressure) distributes and reduces the required pulling force.
Solution Approach 2:
The patent employs hydraulic principles by using a pump to inject water into the recycling tube. The water pressure creates a pressure differential between the inside and outside of the tube, generating an upward buoyant force that assists the hoist in lifting the anchor. This hydraulic assistance reduces the mechanical pulling force required and increases retrieval speed.
2Speed
If a hoist provides a big pulling force for lifting, then the anchors can be lifted, but the speed is slow and efficiency is low
Solution Approach 1:
The pump body assembly injects water into the recycling tube, creating a pressure differential that generates upward buoyant force. This hydraulic assistance increases the lifting speed by reducing the reliance on slow mechanical pulling alone, thereby improving overall recycling efficiency.
Solution Approach 2:
The system changes the physical state parameters by introducing water pressure into the recycling tube. The pressure differential (parameter change) creates additional upward force, transforming the lifting process from slow mechanical extraction to faster assisted retrieval, improving both speed and efficiency.
3Ease of operation
If the recycling tube penetrates to the level of the seabed, then the annular anchor can be reached, but the recycling tube may be jammed with soil and soil may be sucked into the pump body assembly
Solution Approach 1:
The constraint means (constraint plates with guiding portions) are pre-installed on the recycling tube to guide and constrain the annular anchor's movement. This preliminary action prevents the anchor from shifting or tilting during retrieval, avoiding soil jamming and protecting the pump assembly from contamination before the problem can occur.
Solution Approach 2:
The constraint plates act as intermediary elements between the recycling tube and the annular anchor. They mediate the interaction by providing guidance and constraint, preventing direct contact between the soil and the pump body assembly, thus protecting the equipment while maintaining access to the anchor.
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 solution enables fast, efficient, and environmentally friendly recycling of annular anchors with reduced noise and impact, avoiding soil jamming and equipment damage, while maintaining high stability and accuracy in the lifting process.
Implementation Method 1
starting the pump body assembly to fill water into the recycling tube for a pressure boost, meanwhile cooperating with a hoist to pull the recycling tube and the annular anchor out of the seabed
Implementation Method 2
driven by the pressure difference, the annular anchor to rise
Data Source
AI summary
The present disclosure provides an annular anchor recycling instrument and an annular anchor recycling method, relating to the technical field of ocean engineering. The annular anchor recycling instrument includes a recycling tube, a pump body assembly, a lifting portion and an installation portion. One end of the recycling tube is provided with a cover body, and the other end of the recycling 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 boost pressure to the interior of the recycling tube. The lifting portion is arranged on the cover body, and used to connect with a hoist. The installation portion are arranged on the cover body, and used to connect with the anchor chain on the annular anchor.