Dynamic Sampling Pipe Buffer Mechanism for Vessel Water Resistance
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Solution Overview
Problem
Current ocean surface water sampling methods face challenges in maintaining stable and accurate continuous sampling during research vessel travel, as existing devices are prone to damage from water resistance and instability, limiting the collection of large-scale sea data without disrupting navigation.
Innovation Solution
An adaptive dynamic sampling device with a support system that allows the sampling pipe to ascend or descend, featuring a buffer mechanism with hydraulic tanks and a depth transducer for real-time adjustment, enabling the sampling pipe to move laterally and axially within a buffer housing to mitigate water resistance and ensure continuous, accurate sampling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the sampling pipe is fixed rigidly on the stern for continuous sampling during vessel travel, then sampling stability is improved, but the sampling pipe is damaged by constant water resistance
Solution Approach 1:
The sampling pipe is transformed from a fixed rigid structure to a dynamic movable one. It can move freely in the axial direction within the buffer housing, allowing it to adapt to water resistance forces during vessel travel while maintaining sampling stability through controlled movement rather than rigid fixation.
Solution Approach 2:
The buffer housing acts as a flexible containment structure that allows the sampling pipe to move axially within it. This flexible arrangement absorbs water resistance forces while keeping the sampling pipe secured, preventing damage from constant mechanical stress during continuous sampling operations.
2Productivity
If the sampling pipe extends 20-30 cm below water surface during travel for sampling, then continuous sampling capability is improved, but the sampling pipe produces floating power and becomes unstable
Solution Approach 1:
The depth transducer provides real-time feedback on the sampling pipe's depth position, and the hydraulic tank adjusts the pipe's position based on this feedback. This closed-loop control system maintains stable sampling depth despite water resistance and vessel movement, enabling continuous sampling while preserving position stability.
Solution Approach 2:
The hydraulic tank uses hydraulic pressure to control the sampling pipe's depth position dynamically. This allows the system to counteract floating forces and maintain stable positioning of the sampling pipe at the desired depth during continuous sampling operations despite water resistance.
3Ease of manufacture
If the sampling pipe is made rigid for structural strength, then manufacturing simplicity is improved, but the sampling pipe cannot adapt to water resistance during vessel travel
Solution Approach 1:
The sampling pipe system is segmented into a rigid pipe section and a movable mounting section. The rigid pipe maintains structural strength and manufacturing simplicity, while the movable mounting section within the buffer housing provides adaptability to water resistance forces during vessel travel.
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 device allows for continuous, stable, and accurate surface water sampling over a large sea area without delaying vessel navigation, reducing damage from water resistance and extending the sampling device's lifespan through automatic depth adjustment and control.
Implementation Method 1
at a bottom portion of the sampling pipe a depth transducer to check a distance from a sampling pipe water inlet to the water surface is provided; a control unit is provided too, wherein the depth transducer detects signals of a position of the water inlet
Implementation Method 2
a hydraulic tank for driving the support up and down, to send the sampling pipe to the surface water; the hydraulic tank will in turn push the support to have the sampling pipe water inlet posed at the surface water, after the sampling is done, send quit signal to the hydraulic tank, and draws the support and the sampling pipe back
Implementation Method 3
a buffer spring for undermining impact from water resistance on the sampling pipe
Data Source
AI summary
The present invention discloses an ocean surface water continuous sampling device, the device comprises a support that ascends and descends along the stern, on the support a sampling pipe for drawing and sampling the surface water, and hydraulic tanks for driving the support up and down to send the sampling pipe to where the surface water is are provided, and a buffer mechanism for avoiding damage due to constant water resistance to the sampling pipe during sailing is provided on the support too. Configuration of the depth transducer, control unit and hydraulic tanks, promises surface water accurate and continuous collection during research vessel travelling; the buffer mechanism works effectively in avoiding radial and axial damage to the sampling pipe due to continuous water current resistance, which successfully relieves the resistance, and prolongs sampling pipe life; and automatic surface water collection is realized with the automatic control design.