Introduction:
Mechanical Seals generate heat and require lubrication while face sealing. Different API
Plans are used to dissipate this generated heat and cool the seal faces thus extending the seal life.
Flushing is required to cool and lubricate the seal. Controlling Flush Fluid Temperature is critical to the life of a mechanical seal. Cooling of the product also may be needed to improve the margin to vapour formation, to meet secondary sealing element temperature limits, to reduce coking or polymerizing, or to improve lubricity (as in hot water).
Disadvantage:
The basic disadvantages with water-based heat exchangers are the formation of scale around the tube due to fouling. Fouling can be very costly in refinery and petrochemical plants since it increases fuel usage, results in interrupted operation and production losses, and increases maintenance costs
Solution:
It has been often recommended to use the Air Cooler to get rid of the above problem but the size and the cooling efficiency of the so far developed air cooler had put them on the back foot and are rarely used for the cooling of the mechanical seals.
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Expert Engineering has developed a new Enhanced Air Finned Cooler for such difficult applications, where no water is used. The compact size with natural draft cooling maintains the requirement of the cooling.
Expert Engineering Enhanced Air Finned Cooler is unique in design. In which the Process Liquid flows from the pot (as the direction shown in the fig. Expert Engineering Air Cooler) and the cooling Finned Tubes and inserted in the pot, which cools the Process Liquid when it comes in contact with Tube Cooling Finned Tubes. The tubes are consists of sealed Stainless Steel tubes with Copper/Aluminium fins around it. It is filled with a liquid (the thermal transfer medium) appropriate to temperature of application. Working Principle of Finned Tubes It is filled with a liquid (the thermal transfer medium) appropriate to temperature of application. The working fluid evaporates extracting heat from the process liquid Vapor moves towards fin side of the tube wherein it dissipates heat to the ambient and condenses. The condensed liquid comes back to the bottom portion. The cycle repeats, BENEFITS OF AIR COOLER Reliability: Direct saving Cost of Water: With Air Fin Coolers no water is required hence cost of water is saved. To get desired amount of cooling normally for water-cooled heat exchangers 40 to 50 lpm water is required. @ Rs 5 per cubic meter approximate saving will be about Rs. 110000/- per year. Cost of circulation of water: The energy spent in water circulation in is saved. On an average about 0.5kW of power is required for recirculation of water in each cooling circuit. @ Rs 4.5 per kw the power cost would be Rs.19710/- Preventive Maintenance: Water causes scaling problem, and due to scaling, temperature to the seal goes up, the pump needs to be taken for removal of scale. Cost of removal of scale and loss of production is saved with Air Fin Coolers. Cost of each shut down is between Rs. 50,000/- to Rs. 1, 50,000/- (depends on criticality and cost of the product.) Shut down Maintenance: If seal fails because of poor cooling in addition to the production and maintenance loss, cost of replacement seal components add to the loss. The cost incurred varies between Rs. 75,000/- to Rs. 5, 00,000/- depending on the seal size and spares consumed. Indirect saving Fouling: In absence of water, no scaling can take place. Because of scaling heat transfer gets reduced, hence either water consumption goes up or temperature in seal area goes up which reduces the seal life. Better circulation of flushing fluid: In absence of coil, friction loss reduces hence there is better circulation of flushing liquid. The seal will be more comfortable with increased amount of flushing liquid, as there is no friction
Average Power -0 0.5kw Cooler Type - Chillers, Desert, Evaporator, Tower Temperature - 40 Degree C Expert Engineering Air Finned Cooler is unique in design. In which the Process liquid flows from the pot (as the direction shown in the fig. Expert engineering air cooler) and the cooling finned tubes and inserted in the pot, which cools the process liquid when it comes in contact with tube. Cooling Finned Tubes: * The tubes are consists of sealed stainless steel tubes with copper/aluminium fins around it * It is filled with a liquid (the thermal transfer medium) appropriate to temperature of applications Working Principle of Finned Tubes: * It is filled with a liquid (the thermal transfer medium) appropriate to temperature of applications * The working fluid evaporates extracting heat from the process liquid Vapor moves towards fin side of the tube wherein it dissipates heat to the ambient and condenses * The condensed liquid comes back to the bottom condenses * The cycle repeats Reliability: * Any equipment which depends on the reliability of other equipment is not reliable or less reliable * Expert engineering's air finned cooler cools the product with natural draft It does not have any moving parts, needs no external power source Expert Engineering's air finned cooler does not depend on the cooling water there for risk of shut down due to poor quality/quantity of water is eliminated Direct saving: * Cost of Water: With Air Fin Coolers no water is required hence cost of water is saved. * To get de sired amount of cooling normally for water-cooled heat exchange rs 40 to 50 lpm water is required. @ Rs 5 per cubic meter approxi mate saving will be about Rs. 110000/- pe r year. * Cost of circulation of water: The energy spent in water circulation in is saved On an average about 0.5kw of power is required for recirculation of water in each cooling circuit. @ Rs 4.5 per kw the power cost would be Rs 19710/- * Preventive Miantenance: Water causes scaling problem, and due to scaling, temperature to the seal goes up, the pump needs to be taken for romoval of scale * Cost of removal of scale and loss of production is saved with air fin coolers Cost of each shut down is between Rs. 50000/- to Rs 150000/-(depends of criticality and cost of the product) * Shut Down Maintenance: If seal fails because of poor cooling in addition to the Production and maintenance loss, cost fo replacement seal components add to the loss * The cost incurred varies between Rs. 75000/- to Rs. 500000/- depending on the seal size and spares consumed
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Mechanical-Seals
Double Cartridge Seal
Mechanical seals 1
Mechanical seals, encapsulated o-ring, flowserve seals, burgmann seals, aesseal seals, rotan seals, john crane seals, latty seals, roplan seals, sterling seals, us seals, vulcan seals, abs pump seals, apv seals, alfa lava seals, allwiler seals, armstron seals, calpeda seals, e.M.U seals, flygt seals, ebara seals, fristam seals, grindex seals, bell & gossett seals, goulds seals, jabsco seals, lowara seals, ibex seals, ksb seals , viking seals, ssp seals, sihi seals, tri-clover seals, tunchenhagen seals, weir seals. Standard export carton
Mechanical seals.
Mechanical seal.
