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Horizontal inlet and outlet layout features low installation height, suitable for pipeline renovation with large-flow steam and process gas under limited workshop ceiling height.
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Horizontal Multi-stage Steam-Water Separator
1. Product Introduction
Horizontal Multi-stage Steam-Water Separator adopts horizontal pressure vessel structure equipped with multi-series corrugated baffle modules. Wet steam flows horizontally into cylinder. Large droplets are removed in primary stage; fine mist is captured step by step through secondary & tertiary inertial separation and gravity settling. Built-in anti-re-entrainment weir prevents condensate from being re-carried by high-speed gas flow.Automatic drain system with level transmitter can be equipped as option. Widely applied for boiler steam pipelines, MVR evaporators, multi-effect evaporation, chemical distillation and upstream protection for vacuum pumps.
2. Working Principle
Wet steam horizontally enters vessel. Large droplets are intercepted by primary baffle module.Steam with fine mist flows into multi-stage deflection units, forced to change direction repeatedly.Micro droplets collide onto baffles, coalesce and sink to liquid collection sump under gravity.Anti-re-entrainment weir avoids re-entrainment of surface liquid.Dry steam flows out horizontally.Condensate can be drained continuously by steam trap or automatic drain valve controlled by liquid level.
3. Structural Composition
Horizontal pressure vessel shell
Horizontal inlet & outlet flanges
Multi-stage corrugated baffle separation assembly
Flow homogenizer & anti-re-entrainment weir
Bottom liquid & sludge collection trough
Drain nozzle and spare inspection nozzle
Support legs, optional thermal insulation jacket
Optional: level transmitter, electric/pneumatic drain valve, sight glass
4. Main Technical Specifications
Nominal Pressure: PN16 / PN25 / PN40; Class150 / Class300
Design Temperature: ≤320 ℃
Operating Range: Full vacuum negative pressure up to 4.0 MPa
Separation Efficiency: ≥98% for droplets ≥5 μm
Pressure Drop: ≤6 kPa
Nominal Diameter: DN100 ~ DN1600
Housing Material: Q245R carbon steel, SS304, SS316L
Internal Baffles: Standard SS304 stainless steel
Installation: Strict horizontal mounting
5. Key Advantages
Multi-stage gradient separation, better dehydration performance than single baffle separator.
Long horizontal flow channel, sufficient residence time, stable under fluctuating steam load.
Special anti-re-entrainment construction to avoid mist re-generation.
No filter cartridges or wire mesh consumables, low long-term maintenance cost.
Suitable for both positive pressure steam and negative pressure evaporation process.
Flexible configuration: manual steam trap or fully automatic level-controlled drainage.
6. Typical Application
Steam purification after boiler main pipeline and steam header;
Secondary steam treatment for MVR & multi-effect evaporators, crystallizers;
Gas-liquid separation for chemical distillation and solvent recovery;
Front protection for liquid ring vacuum pumps and Roots vacuum pumps;
Heating pipelines, paper, textile and rubber vulcanization steam system.
7. Selection Guidance
Select model based on maximum steam flow, operating pressure, medium temperature and inlet steam humidity.Horizontal multi-stage type is recommended for high moisture steam and strict dryness requirement.
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