Vane Type Demister Introduction
The DynaVaneTM style of mist eliminators presents a sophisticated and ingeniously engineered array of vanes. Designed with precision, these vanes excel in separating liquid droplets from vapor streams through inertial impaction—a process where droplets skillfully collide with the vane surfaces. During this separation dance, the gas navigates a carefully structured zigzag pathway between the vanes, ensuring optimal separation performance. Over time, several foundational styles have emerged, setting industry benchmarks for a variety of specialized applications.
Rhine Ruhr proudly designs and manufactures the following standard DynaVaneTM styles:
- The VC single pocket range, featuring chevron vanes without drainage channels, offers a streamlined and efficient solution.
- The VDC double pocket range is crafted with intelligently enclosed drainage channels for superior efficiency.
- The HC single pocket range is designed with open drainage for effective liquid removal.
- The HDC double pocket range, equipped with enclosed drainage channels, enhances overall functionality and performance.
The precise level of droplet removal for any specific droplet size can be accurately calculated using centrifugal forces combined with Stokes Law. Rhine Ruhr has pioneered advanced computer models to estimate droplet removal efficiencies, enabling the precise optimization of vane geometry tailored to any specific duty.
The liquid removal efficiency of DynaVaneTM series reaches an impressive 99.9% for droplets ranging from 10µ+ to 30µ+
In general, droplet removal efficiency is significantly enhanced under the following conditions:
- Increasing Gas Velocity, which propels droplets with more force against the vanes, enhancing separation.
- Increasing Gas and Liquid density difference, promoting a more substantial separation effect.
- Decreasing Gas Viscosity, allowing droplets to be more readily captured and removed.
- Increase Vane Angle, optimizing impact and capture rate for superior performance.
- Decreasing Vane Pitch, enhancing the thoroughness and effectiveness of separation.
DynaVaneTM Mist Eliminators are meticulously custom-manufactured to seamlessly integrate with specific vessel arrangements. Whether the installation consists of loose segments supported by annular rings and/or beams secured with retainer bars, or vane packs designed for integration with a sealed gas box, every component is engineered for both efficacy and ease of use.
- Loose segments are supported on annular rings and/or beams to be securely fastened with retainer bars.
- Vane Packs are expertly crafted for easy fixing to a sealed gas box.
In every scenario, the complete assembly is thoughtfully designed and supplied in manageable sections, each crafted to fit through access manways, ensuring effortless installation within the vessel.
While every component is constructed from lightweight materials for ease of installation and assembly, the overall design is robust enough to withstand a wide range of service conditions, including vibrations and slugging, within an appropriately designed and sized vessel arrangement.
DynaVaneTM Style | Drainage Channels | Unit Thickness (mm) | Fouling Resistance | Removal Range | ||
VC2040 | None | 200 | Very High | 30µ + | ||
VC3040 | None | 280 | Very High | 30µ + | ||
VC4040 | None | 360 | Very High | 30µ + | ||
VC2025 | None | 125 | Good | 20µ + | ||
VC3025 | None | 175 | Good | 20µ + | ||
VC4025 | None | 230 | Good | 20µ + | ||
VC4020 | None | 180 | Reasonable | 15µ + | ||
VC4015 | None | 135 | Avoid | 10µ + | ||
VC6010 | None | 130 | Avoid | 10µ + | ||
VDC2025 | Enclosed | 234 | Avoid | 10µ + | ||
VDC3025 | Enclosed | 288 | Avoid | 10µ + | ||
VDC4025 | Enclosed | 341 | Avoid | 10µ + | ||
HC2040 | Open | 183 | Good | 30µ + | ||
HC2025 | Open | 183 | Reasonable | 15µ + | ||
HC3025 | Open | 254 | Reasonable | 15µ + | ||
HC4025 | Open | 325 | Reasonable | 15µ + | ||
HC2020 | Open | 183 | Reasonable | 12µ + | ||
HC3020 | Open | 254 | Reasonable | 12µ + | ||
HC4020 | Open | 325 | Reasonable | 12µ + | ||
HDC2025 | Enclosed | 234 | Avoid | 10µ + | ||
HDC3025 | Enclosed | 288 | Avoid | 10µ + | ||
HDC4025 | Enclosed | 341 | Avoid | 10µ + | ||
Note: Actual droplet removal size range will vary according to system properties. Mechanical Design: DynaVaneTM Mist Eliminators are custom manufactured to be compatible with the required vessel arrangement. Installation can be either:- · Loose segments supported on annular rings and/or beams secured with either retainer bars. · Vane Packs designed for fixing to a sealed gas box. In each case, the complete assembly is designed and supplied in sections which are sized to fit through access manways and are able to be man handled inside the vessel. Vane Packs consist of DynaVaneTM elements fully enclosed in housings with built in drainage sump. Although all parts are constructed from lightweight material to assist installation and assembly, the overall construction is sufficiently robust to withstand most service conditions including vibration and slugging in a suitably designed and sized vessel arrangement. |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |