Conical Cyclone Separator With Widened Tangential Inlet
Solution Overview
Problem
Conventional cyclone separators in steam drums experience high pressure drops, which can limit their capacity and efficiency, especially in smaller diameter steam drums, and are not effectively adaptable to varying water levels.
Innovation Solution
A modified conical cyclone separator design with a widened tangential inlet, increasing the inlet flow area by 28%, maintains the same overall length as standard cyclones while reducing pressure drop by up to 40% without compromising steam and water capacity, and is unaffected by water level fluctuations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a conventional cyclone separator is used, then steam and water separation is achieved, but pressure drop is high
Solution Approach 1:
The patent modifies the geometric parameters of the cyclone separator, specifically widening the tangential inlet by 11mm (increasing flow area by 28%) and optimizing the conical section dimensions. These parameter changes reduce flow resistance and pressure drop while maintaining the separation functionality through preserved centrifugal force generation.
Solution Approach 2:
The patent transitions from a cylindrical cyclone design to a conical cyclone configuration, changing the dimensional geometry of the separation chamber. This conical shape modifies the flow patterns and pressure distribution, enabling reduced pressure drop while maintaining effective steam-water separation through optimized centrifugal forces.
2Object-affected harmful factors
If the inlet flow area is increased to reduce pressure drop, then the separator becomes longer, but space availability in smaller diameter steam drums is limited
Solution Approach 1:
The patent optimizes the conical section angle and inlet dimensions to achieve a compact configuration. By carefully selecting the half-apex angle of the conical section and the width of the tangential inlet, the design reduces pressure drop through increased flow area while controlling the overall length to fit within smaller steam drum diameters.
Solution Approach 2:
The conical configuration with optimized curvature replaces the cylindrical shape, allowing more efficient use of vertical space. The curved conical surfaces guide flow more effectively, reducing the length required to achieve the same separation performance and pressure drop reduction.
3Adaptability or versatility
If a standard cyclone separator is used, then separation capacity is maintained, but adaptability to varying water levels is poor
Solution Approach 1:
The conical configuration creates dynamic flow adaptation to varying water levels. As water level changes, the flow patterns and separation mechanisms automatically adjust, maintaining effective separation capacity across different operating conditions without requiring mechanical adjustment of components.
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 modified design achieves a significant reduction in pressure drop while maintaining equivalent steam and water capacity, allowing for installation in smaller steam drums and improved separation efficiency.
Implementation Method 1
cyclone separators for separating steam from water, in the steam drum of a boiler
Implementation Method 2
a circular whirl chamber, a tangential inlet
Implementation Method 3
The tapered configuration acts to direct the entering steam water mixture into a slightly downward direction
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
A conical cyclone separator (40) for separating steam from water in a steam/water mixture supplied to a steam drum of a boiler, comprises a conical portion (41) with upper and lower cylindrical portions (42). Using a widened tangential inlet (46) that extends the axial length of the conical portion (41) of the separator (40), the disclosed separator (40) has an inlet (46) which is increased in width by approximately 16% with no derogation in steaming capacity but with substantially less pressure drop. The inlet design of this separator (40) does not increase the overall length of the separator (40) allowing for its use in smaller diameter steam drums that would be unable to currently utilize conventional separators.