Solid-liquid separating system and solid-liquid separating method
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Solution Overview
Problem
Existing solid-liquid separation methods require multiple devices and complex steps to separate oil from a mixture of water and oil, as they often use materials that dissolve both components, necessitating additional separators and pumps for efficient extraction.
Innovation Solution
A solid-liquid separating system utilizing a material that is gaseous at normal temperature and pressure, which dissolves oil but not water, employing a closed cycle with heat exchangers and a compressor to efficiently separate and collect oil by gasifying and liquefying the material within a closed system, eliminating the need for additional separators and pumps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a material that dissolves both water and oil is used for separation, then the liquid part contains both water and oil, but an additional oil-water separator is required to extract only oil
Solution Approach 1:
The patent applies local quality by selecting a material A that has different dissolution properties for different components: it dissolves oil but does not dissolve water. This selective dissolution capability allows the system to separate oil from the mixture without requiring an additional oil-water separator, as the material naturally partitions the components based on their solubility characteristics.
Solution Approach 2:
The patent changes the physical parameter of material A from liquid to gas phase through temperature and pressure control. By gasifying material A after oil dissolution, the system achieves automatic phase separation where oil remains dissolved in the gas phase while water is excluded, eliminating the need for mechanical separators.
2Ease of operation
If a pump is used to deliver liquefied material A, then the material can be transported, but the system requires additional pumping equipment
Solution Approach 1:
The patent replaces the mechanical pump system with a thermal field-based transport mechanism. By controlling the temperature and pressure conditions, material A naturally transitions between liquid and gas phases, enabling it to be delivered to the processing tank without mechanical pumping. The phase change itself drives the material movement and distribution.
3Productivity
If multiple devices are used for separation, then extraction efficiency can be maintained, but the structure and steps become more complex
Solution Approach 1:
The patent merges multiple separation functions into a single integrated system. The material A performs both dissolution of oil and phase separation in one process step, combining what would traditionally require multiple separate devices (dissolution vessel, separator, pump) into a unified processing approach that maintains extraction efficiency while simplifying the overall system structure.
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
This approach simplifies the process by reducing the number of devices needed and enhancing efficiency in oil extraction from a mixture containing water and solid, while maintaining minimal heat impact on the processing object.
Implementation Method 1
a first heat exchanger that gasifies the material A contained in a mixture of the material A and the oil obtained in the processing tank
Implementation Method 2
a second heat exchanger that liquefies the material A that has been gasified in the first heat exchanger
Implementation Method 3
the first heat exchanger condenses the material B compressed with the compressor and exchanges heat of condensation of the material B for heat of evaporation of the material A
Implementation Method 4
the second heat exchanger exchanges heat of evaporation of the material B for heat of condensation of the material A
Data Source
AI summary
A solid-liquid separating method and system for separating a processing object into solid and liquid, is simplified by using fewer devices. A solid-liquid separating system includes a processing tank that houses a processing object, a first and a second heat exchanger, a material A supplying means, a collecting tank, a closed system including the first and second heat exchangers, a compressor, and an expansion valve, and a material B that circulates while a state is changed in this system. A material A that is gaseous at normal temperature and normal pressure, can dissolve oil when liquefied, and does not dissolve water is gasified in the first heat exchanger while being separated from the oil, is liquefied in the second heat exchanger, and the liquefied material A is supplied to the processing tank by the material A supplying means. The oil is collected in the tank from the first heat exchanger.