What is Alcap principle?
The ALCAP Principle Its flow control disc eliminates the need to change gravity discs based on differing fuel densities. It used Transducers to detect water in oil side and oil in water side and thereby signaling the microprocessor to desludge automatically upon detecting changes in the interface.
How does Alfa Laval purifier work?
A disc stack separator separates solids and one or two liquid phases from one another using extremely high centrifugal forces. The centripetal force generated by the rotating bowl pushes solids against the periphery of the bowl, while the less dense liquid phases form concentric inner layers.
What is the function of gravity disc in purifier?
Gravity Disk in Purifier alters the location of the oil-water interface and is responsible for creating an interface between the oil and water. And further, the Interface can be shifted inwards or outwards with the correct selection of the gravity disk in your purifier.
What is Alcap purifier?
ALCAP separators are used for purifying oil of specific gravity more than 0.991. When oil is fed into the system through the oil inlet, the separated water and sludge accumulate at the bowl periphery. The purified oil is discharged through the oil outlet. It operates similar to clarifier.
What is the principle of centrifugal purifier?
The centrifugal purifier uses the principle of density difference to separate water and other contaminants from oil mixture. While the separating force of these mixtures under gravity separation is defined by formula Fs = ∏/6*D3*(ρw-ρo)*g.
What is blind disc in purifier?
Blind Disc means the disc is blind. It means there is no holes in the disc. It is used to convert the purifier into clarifier. It is inserted at the bottom of the disk stack, because there are no holes.
What is the function of pilot valve in purifier?
A pilot valve is a small valve that controls a limited-flow control feed. This valve is usually used to control a high pressure or high flow feed. When desludging is needed inside a purifier, the valve slides to relieve the pressure in the pressure chamber.
What is centrifuge purifier?
Types of Centrifuge: 1) Purifier: When a centrifuge is arranged for separating two liquids of different densities, for e.g. water from oil, it is known as a purifier. The main component of purifier is correct size gravity disc or dam ring which is responsible for creating an interface between the oil and water.
What is E line in purifier?
Q) What is the interference line/ e- line and where should it be formed for best purification? A) It is a line formed at the interface of oil and water and should be formed just inside the top disc outer circumference.
What is bowl assembly in purifier?
In a a disk-type purifier, a bowl shaped rotating element encases a stack of disks. The bowl itself sits atop the vertical bowl spindle which is driven by a worm gear and clutch assembly. The spindle and bearing absorbs the weight of the bowl assembly. Once operating, the bowl spins at approximately 7500 rpm.
What is weak link in purifier?
Weak Links is provided to connect gear pump and horizontal shaft…. In case of any problem with gear pump, weak link breaks. Which will help to avoid the damage of horizontal shaft, gears and bearings.
How does an Alfa Laval ALCAP purifier work?
This is achieved by supplying desludging water for shorter time duration. In case of Alfa Laval Purifiers, Valve Springs are used instead of Pilot Valves. Alpha Laval ALCAP design in marine centrifugal purifiers claims it can purify high density residual fuels.
Can ALCAP purify high density residue?
The ALCAP Principle Alpha Laval ALCAP design in marine centrifugal purifiers claims it can purify high density residual fuels. Its flow control disc eliminates the need to change gravity discs based on differing fuel densities.
What is the working principle of centrifugal purifier?
Centrifugal Purifier Working Principle. The dirty oil is supplied to the center from the settling tank. Then due to centrifugal force, the separation between oil and water took place due to their different density. Water being heavier than oil is thrown out toward the wall of the bowl whereas the oil is positioned in the center.
What is the working principle of water purifier?
During purification, centrifugal force acts on pilot valve therefore packing remains sealed, operating water remains filled in the chamber and bowl is kept pushed upwards to main sealing ring. Due to constant loss of water (evaporation) operating water is replenished by ‘make up water’ or ‘replenishing water’.