Spiral Ramp Hydrocyclone for Oil Water Separation
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Solution Overview
Problem
Current hydrocyclone separators used for separating oil and water do not achieve complete separation, leading to residual oil in treated water, which fails to meet increasingly stringent environmental standards due to inefficiencies in centrifugal force generation and turbulence during fluid entry.
Innovation Solution
A hydrocyclone separator design incorporating a spiral fluid ramp with a tapered cross-sectional area, which reduces turbulence and increases fluid flow velocity, allowing for enhanced centrifugal separation of lighter and heavier components before they enter the frustoconical segment, thereby improving separation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a tangential entry opening is used to generate centrifugal force, then separation capability is improved, but turbulence during fluid entry increases and reduces separation efficiency
Solution Approach 1:
The spiral ramp performs preliminary action by pre-swirling the fluid before it enters the frustoconical separation zone. This preliminary swirling action is achieved through the spiral geometry of the ramp, which imparts rotational motion to the fluid as it flows along the ramp surface, reducing turbulence upon entry into the separation zone.
Solution Approach 2:
The spiral ramp utilizes curved surfaces to guide fluid flow in a spiral path. The curved geometry of the ramp transforms linear fluid entry into rotational flow, smoothly transitioning the fluid into the centrifugal separation zone without creating turbulence. The curvature of the ramp surface is essential for generating the swirling motion required for effective separation.
2Speed
If fluid velocity is increased to enhance centrifugal separation, then separation efficiency is improved, but turbulence increases and reduces separation quality
Solution Approach 1:
The curved spiral ramp surface guides the fluid at higher velocities while maintaining smooth flow patterns. The curvature allows the fluid to follow the spiral path without separation or turbulence, enabling high-speed flow that enhances centrifugal separation effectiveness without compromising separation quality.
Solution Approach 2:
The design converts what would normally be harmful turbulence into beneficial swirling motion. The spiral ramp transforms random turbulent fluctuations into organized rotational flow, where the centrifugal force generated by the controlled swirl enhances separation rather than disrupting it. The turbulence is converted into useful centrifugal action.
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 spiral ramp design reduces turbulence and enhances centrifugal force, resulting in more efficient separation of oil and water, maintaining larger oil droplets and improving the purity of treated water to meet stringent environmental standards.
Implementation Method 1
converting the pressure of the incoming fluid into centrifugal force
Implementation Method 2
reduces turbulence and increases fluid flow velocity
Implementation Method 3
uses centrifugal force to separate the oil from the water
Implementation Method 4
the denser water phase of the mixture to be flung outwards while the lighter oil phase is displaced to the center
Implementation Method 5
a vortex is created, which causes the denser water phase of the mixture to be flung outwards
Data Source
AI summary
The invention comprises a hydrocyclone separator which includes a first segment including a fluid inlet, an overflow outlet and a spiral fluid ramp having a first and second end. The first end of the spiral fluid ramp is in fluid communication with and extends from the fluid inlet. The second end of the spiral fluid ramp is connected in fluid communication with the wider end of a frustoconical second segment and the narrower end of the frustoconical second segment is connected in fluid communication with a first end of a third segment comprising a tubular element. An underflow outlet is located at the second end of said tubular element.