Liquid separation from gas, air or steam flows - Kelburn Engineering

HIGH EFFICIENCY COALESCENT CYCLONE STEAM SEPARATORS

Condensate droplets within the steam flow at both start up and during normal operation may cause the following problems within a steam system.

• Equipment damage due to erosion and/or corrosion.
• Reduction in process efficiency due to lower heat transfer rates.
• Waterhammer.
• Thermal shock.
• Reduced heat content.
• Pipeline corrosion.
• Wire drawing effects.

The Kelburn Engineering Coalescent Cyclone Steam Separator, having been proven throughout the world, both protects equipment and prevents the problems associated with wet steam.

PERFORMANCE

These highly efficient, flow driven separators remove all droplets down to 10 microns in size and 80 - 90% in the range 5 - 10 microns. The separator operates with overall extraction efficiencies of more than 99.5%, giving a typical steam dryness fraction of over 0.997 at outlet from a 0.9 dry inlet steam.

The Kelburn Engineering separator generates a very low pressure drop, typically less than 1% of the system operating pressure.

HIGH EFFICIENCY KNOCKOUT CYCLONE STEAM SEPARATORS

Steam plants, turbines and other equipment are always vulnerable to the ingestion of pipe scale and swarf or to the severe loadings imposed by the sudden transmission of large volumes (slugs) of water. This may result in the following problems within a steam system.

• Shock loadings due to water hammer.
• Steam turbine blading and thrust bearing damage.
• Thermal shock effects on cold fittings and ancillary equipment.
• Erosion and damage due to pipe scale and other debris.
• Overloading of condensate drainage system.

The Kelburn Engineering High Efficiency Knockout Cyclone Steam Separator has been developed to satisfy the dual separation requirement of large volumes of water and the removal of solid debris. This type of separator also provides efficient wet steam separation during normal flow conditions.

OPERATION

Slugs or streams of water, pipe scale and other debris enter the separator entrained within the steam flow and hits the coned deflector vane section (designed to withstand the large impact loadings) where the flow is split into multiple streams. The flow then enters a vortex chamber tangentially from the deflector vanes and is subjected to a powerful centrifugal action. The water and solid particles are forced to the cyclone walls and leave the unit via a large area drain. The large bore drain and pipe reservoir provide rapid liquid removal and high capacity storage during a large water carryover event, providing clean dry steam at outlet.

PERFORMANCE

These highly efficient, flow driven separators operate with extraction efficiencies of more than 99.5%, giving a typical steam dryness fraction of over 0.995 at outlet from a 0.90 dry inlet steam.

ADDITIONALLY

Separation of pipe scale, swarf and other solid debris down to 15 microns in size. Separation and dispersion of boiler prime or other water streams. The Kelburn Engineering separator generates a very low pressure drop, less than 1% of the system operating pressure.