Tower Internals
Liquid Distributor
Liquid distributors aim towards ideal liquid distribution, i.e. equal liquid rate per unit area of the packed bed surface. These distributors are available in a complete range to suit various column diameters, liquid rates and service conditions. Models, which can give turndown ratio upto 10:1, are available. Our design team selects the most suitable model for a given application.:
The following types are available:
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Distributor With Flow Multiplier
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Distributor Pan Type
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Distributor Pipe Arm Type
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Distributor Riser Deck Type
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Distributor Riser Deck With End Closure
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Distributor Spray Nozzle Type
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Distributor Trough Type With Parting Box
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Distributor Trough Type With Sump
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Distributor V Weir Type
Bed Limiter
Bed limiters are safety devices that are available for both random as well structured packing to avoid the expansion of the packed bed, as well as to maintain the bed top surface level.
The following Types are available:
- Bed Limiter for Random Packing
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Bed Limiter for Structured Packing (Hold Down Grid)
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Hold Down Plate
Support Plate
Support plates in addition to providing physical support to the packings, must also allow unrestricted flow of gas and liquid. Gas injection support plates provide separate passageways for liquid and gas, which minimizes the pressure drop across the plate. Support plate model is selected depending upon the packing type and size and the maximum design load to be supported.
The following types are available:
- Support Plate
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Support Grid
Collector Tray
Collector trays are used to collect liquid from between packed beds or packed bed to tray transition. Liquid interception is required in various situations such as total or partial draw-off of liquid etc. Different types of collector trays are available to suit the vapor and liquid rates
The following types are available:
- Chimney Collector Tray
- Vane Collector Tray
Feed Devices
Different Feed devices are available for various feed conditions of the fluid entering the column such as only liquid feed, mixed feed or gaseous feed. Feed devices are selected to complement with the type of Distributor used to give the optimum performance.
The following types are available:
- Liquid Feed Pipe
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Flash Feed Gallery
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Flash Feed Chamber
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Flashing Feed Pipe
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Vapor Inlet Device
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Vapor Distributor Plate
Liquid - Liquid
Extraction Internals
Liquid-Liquid Extraction is a Separation process in which a feed stream containing dissolved components is contacted with an immiscible solvent which forms a second liquid phase and selectively extracts the dissolved components from the feed. It is primarily used for services where distillation is not practical, like close boiling point or heat sensitive materials.
Packed columns in LLE are used in certain extraction services, such as alcohol washing and contaminant removal from light hydrocarbon. Packed columns are flexible and can handle wide range of feeds and extract to feed ratio. Packed columns are equipped with internals like Disperser Plate/Disperser cum Support Plate, Feed pipes for Dispersed and Continuous Phase. Packing promotes, contacting of two phases, as they have to follow tortuous path thru packed bed. It brings both the phases in close contact, maintaining dispersion & preventing short-circuiting.
The following types are available:
- Support Plate
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Support Grid
Non-Metallic Internals
KEVIN is also in a position to offer tower internals i.e. bed limiters, distributors, support plates, etc. in a variety of polymer materials including FRP, polypropylene, CPVC and PVDF. These internals are designed to provide optimum performance and operating conditions. Major advantages of plastic internals are their lightweight construction and chemical resistance in turn leading to extended life of internals.
The following types are available:
- Non-Metallic Feed Pipe
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Non-Metallic Distributor Trough Type With Parting Box
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Non-Metallic Bed Limiter
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Non-Metallic Support Plate