TCD italia
Liquid seals and knock-out drums
Water Seal
Flare ignition failure is one of the worst nightmares an onshore or offshore petroleum/petrochemical plant can experience.
Unburned hydrocarbon gases vented to atmosphere may cause an explosive hazard leading to loss of equipment and injury to people.
It is well known that safety of flaring depends on the performance of flare pilots.
As flare pilot failure can compromise safety and performance of the entire flare system, it is extremely important to detect the pilot flame quickly and accurately.
These reasons make the pilot ignition system and pilot flame monitoring one of the crucial component of any flare system.
TCD Italia has developed a wide range of tested and proven flare pilots system suitable to satisfy all flaring scenarios even in extreme weather conditions.
Knock-Out Drum
K.O. Drums are designed to remove effectively entrained liquid droplets from the flaring gases. Removal of entrained liquid from the flaring gas is very important for two reasons.
Primarily, the presence of liquid in the flaring gas promotes intense smoke during combustion. Also, if liquid passes through the flame at the flare burner it will cause “flaming rain” onto the ground below causing a serious safety problem.
The design of these drums is based generally on the criteria defined in API RP-521 and it considers residence time and drop-out velocity of the liquid particles in the vapour flow.
K.O. Drums can be designed as gravity separators and in this case they are usually horizontal vessels installed at a reasonable distance from flare.
Combined K.O. Drum / Liquid Seal Drum
A combined drum is split in two compartments.
The K.O. drum section has been designed to remove hydrocarbon liquid from the relief gas and it minimizes the possibility of carry-over and rain fire from flare burner.
The liquid seal section is utilized to provide positive pressure on the flaring gas header and to act as a flame arrestor in the event a flashback occurs in the flare stack.
The combined drums are usually vertically installed at flare base and the costs associated with interconnecting piping foundations and installation are significantly reduced.
HEAD OFFICE:
Via Bachelet, 81/83
46047 Porto Mantovano
Mantova – Italy (MN)
WORKSHOP:
Via Pitentino, 5
46037 Governolo di Roncoferraro
Mantova – Italy (MN)
Phone: +39 0376 408149
Email: info@tcd-italia.com
P. IVA: 02453260206
