An inlet device has the purpose of dissipating momentum of incoming fluid, aiding initial separation without increasing turbulence. A correctly chosen inlet device will ensure even flow distribution, enhanced separation and increased capacity of separator.

This is generally used as a low momentum inlet device The inlet stream entering through the inlet nozzle is smoothly divided into 2 equal streams each of which is deflected through 90 to create a centrifugal gas / lquid separation effect. The streams then impinge against the vessel valls and enter the bulk fluid phases to absorb the momentum.

The inlet stream entering through the inlet nozzle is introduced tangentially into a vertical cyclone tube to create a centrifugal gas/ liquid separation effect. The Liquid stream impinges against the cyclone wall and falls, entering the bulk fluid phase via a cross baffle to absorb the momentum. Gas exits the cyclone via a top exit.

After the inlet device, the liquid passes through distribution baffles which may be single or a matched pair of transverse perforated baffle plates in the liquid zone. Their primary function is to provided a barrier and distribute the liquid evenly from the turbulent inlet zone to the calm separation zone.

Description / Specification of Single Perforated Baffle

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Features:

Sturdy design
Highly durable
Application specific design 

This is a pair of perforated baffles with typically 15-30 % open area extending from the base of the vessel to the high high liquid level ( HHLL ). It is used in more difficult separator applications or where the liquid velocity is excessive.

Majority of separators in the oil and gas industry work on the principle of gravity separation. Coalescers are devices which maximise liquid- liquid separation by reducing the effective distance that the dispersed phase droplets need to travel before encountering a coalescing surface.

Gravity separation of oil and water is accomplished by droplets settling. A certain amount of retention time is necessary to allow a droplet to settle and be united to its bulk phase. Plate pack coalescers are used in the liquid section of a separator or scrubber to optimise the degree of liquid-liquid separation. These coalescers provide excellent performance specially in applications where there is a tendency for fouling.

The packing is manufactured in corrugated sheets making it strong and well suited for this application. Liquid droplets directly impinge on the irregular surface allowing coalescence to take place. The larger droplets then flow either up or down through the packing and separate out into their respective phase.

The coalescer is manufactured from either co-knit metal / plastic filament weave or combining layers of different mesh properties. Liquid droplets directly impinge on the fine wire surfaces allowing coalescence to take place it is usually used in cleaning service for polishing applications.

Finepac offers a complete range of mist elimination devices including mesh pad demisters ,vane type mist eliminators (Chevron equivalent) and liquid coalescers for separation of entrained liquids. Products are available in a variety of metals, plastics and thermoplastics for a wide range of applications

The high speed axial cyclones [specialist design by Kirk Process Solutions] provides a high degree of separation of fine droplets and dust even at high operating pressures. Due to its high capacity it is ideal for retrofitting in to existing separators when high throughputs are required with improved efficiency.