Deep-Sea Suction Sampler With Pressure Compensation And Semiconductor Cooling
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Solution Overview
Problem
Current methods for collecting deep-sea floor organisms are inefficient and often result in the death of samples due to failure to maintain in situ pressure and temperature, limiting the effectiveness of deep-sea floor organism sampling in China.
Innovation Solution
A suction sampler system that includes a pressure-retaining cylinder with a pressure compensation device and semiconductor refrigeration components to maintain in situ conditions, allowing for the collection and preservation of deep-sea floor organisms through controlled suction and active cooling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional sampling methods (TV grabs and ROVs) are used to collect deep-sea floor organisms, then the collection operation can be performed, but the in situ pressure and temperature cannot be maintained, resulting in death of the collected larvae
Solution Approach 1:
The sampling system is divided into separate functional modules: a sampling device for collecting organisms, a pressure-retaining container for maintaining in situ pressure, and a refrigeration device for maintaining in situ temperature. Each module independently performs its specific function, allowing the system to maintain complex environmental conditions without overwhelming operational complexity.
Solution Approach 2:
The sampling device is nested within the pressure-retaining container, which in turn is integrated with the refrigeration device. This nested structure allows multiple functions (sampling, pressure maintenance, temperature control) to be combined in a compact configuration, reducing overall system complexity while maintaining all necessary functions for larva survival.
2Reliability
If a pressure-retaining system is added to maintain in situ pressure, then the survival rate of collected larvae improves, but the device complexity increases
Solution Approach 1:
The pressure-retaining container merges multiple functions: it serves as both the storage vessel for collected organisms and the pressure-maintaining chamber. By combining these functions into a single integrated component rather than separate systems, the device complexity is reduced while still providing effective pressure maintenance for larva survival.
3Temperature
If active cooling with semiconductor refrigeration chip is added, then the temperature control precision improves, but the device complexity and power consumption increase
Solution Approach 1:
The semiconductor refrigeration chip replaces traditional mechanical compression-based refrigeration systems. This solid-state device provides precise temperature control through electrical control without moving parts, reducing power consumption while maintaining or improving temperature control precision for preserving deep-sea organism samples.
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 system effectively preserves the life characteristics of deep-sea floor organisms by maintaining in situ pressure and temperature, enabling efficient collection and transfer to a culture tank while being simple and compact for operation on submersibles.
Implementation Method 1
deep-sea floor organisms are sucked into the suction sampler system by controlling the rotation of the propeller
Implementation Method 2
a pressure compensator is provided for passive pressure preservation
Implementation Method 3
a semiconductor refrigeration chip is provided for active cooling
Implementation Method 4
an inner wall of the pressure-retaining cylinder is provided with a pressure sensor and a temperature sensor; the pressure sensor and the temperature sensor are respectively connected to the controller
Implementation Method 5
an inner wall of the pressure-retaining cylinder is provided with a pressure sensor and a temperature sensor; the pressure sensor and the temperature sensor are respectively connected to the controller
Data Source
AI summary
A suction sampler system for in situ collection of deep-sea floor organisms includes a pressure-retaining cylinder, a pressure compensation device, a cone component, semiconductor refrigeration components, a circuit cylinder and a collection cylinder. Two ends of the pressure-retaining cylinder are respectively equipped with a first and second seal mechanisms, and the cone component is arranged in the pressure-retaining cylinder. The pressure compensation device is connected to the pressure-retaining cylinder through a high-pressure pipe. The semiconductor refrigeration components are arranged outside the pressure-retaining cylinder. The circuit cylinder is equipped with a power supply and a controller, and the semiconductor refrigeration components are connected to the controller. A pressure sensor and a temperature sensor are arranged inside the pressure-retaining cylinder, and respectively connected to the controller. The collection cylinder communicates with the valve hole of the second seal mechanism through a pipeline.