TCD Italia
Flare Systems
TCD Italia works across the complete Oil & Gas supply chain to provide comprehensive solutions combustion and recovery that allow its customers tomeet stringent air quality and safety regulations.
PETROL AND GAS PRODUCTS
1) FLARE SYSTEM
There are several types of support methods for elevated flares.
TCD Italia , optimizes the structural impact by careful consideration of all relevant factors as a firststep to an economic final solution..
TCD Italia , has the experience to propose any type of flare supporting structure and it is in a position to provide the structural and mechanical design, fabrication, trial assembly and erection.
Design is in accordance with all worldwide current used codes employing advanced finite elements and dynamic simulation techniques.
The types of structures are:
Self-supported
Guyed
Derrick
Guyed constant derrick
A thorough evaluation of the specific needs will ensure that economic and operational considerations are fully taken into account before one comes to a decision.
Self Supported Flare
A mechanically and structurally designed stack supports the flare tip without any extra support.
Guyed-Supported Flare
This type of support represents the lightest and cheapest option. It can be used when space and plant layout are large enough to accommodate the guy ropes anchor points at grade.
Guyed Constant Derrick-Supported Flare
This type of support is a good technical and cost compromise when high value of gas temperature could produce significant expansion of the riser and the setting of guy ropes supporting system will represent a problem.
Derrick-Supported Flare
The derrick-supported structure is used for very tall systems where the use of a guy wire is not allowed due to space and erection problems. The flare riser is housed within and supported by a braced framework. The flare burner can be maintained by lowering it by a davit or a crane. The derrick structure allows the installation of several flares together.
2) VENT STACK AND FIRE FIGHTING (SNUFFING) SYSTEM
The TCD Italia Vent Stack is designed to give superior performance to the discharge into atmosphere of hydrocarbon gases.The basic design takes into consideration the following:
Ground level concentration of vented gases
Toxic gases should not create a safety hazard wherepersons may be present.
Spontaneous ignition due to lightning strike, mechanical percussion, electrostatic phenomena.
Noise must be at a safe level where personnel are present.
Thermal radiation due to spontaneous ignition should not create a safety hazard.
3) LIQUID BURNER
The Burner was developed to flare liquid hydrocarbons without liquid fallout or soot formation (smoke). These burners provide excellent service for various onshore applications that require high destruction efficiency of liquid hydrocarbons.When oil is flared, a high pressure media such as an air, gas, or steam is required to mechanically atomize the heavy hydrocarbons for proper and stable combustion.
4) BURN PIT
The main use of a burn pit is to dispose of liquid or mixed liquid-vapours relieves as emergency flows or on an intermittent basis when blowing down pipelines or vessels.
The pit is simply a shallow depression or hole in the ground which acts as a reservoir for the waste liquid.
Burn pits may be manufactured with concrete and/or refractory bricks lining. Very large burn pits are frequently left as a natural excavation and surrounded by an earth or rock bund wall.
5) IGNITION SYSTEMS & PILOTS
Flare Pilot System
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.
Ignition Systems
TCD Italia, has the complete range of ignition system designed for manual or automatic operation or a combination of both.
These systems are able to ignite the TCD Italia flare burner pilots from remote location (over 800 m from flare) and they can be identified as follows:
Conventional Flame Front Generator -FFG
High Energy Ignition - HE
Pilot Burners
The TCD Italia flare pilots are suitable to be lit via a traditional FFG (Flame Front Generator) system and/or via a HE (High Energy) electronic system.
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.
BIOGAZ PRODUCTS
1) FLARE SYSTEM
Elevated Flame — Mod. EL
The flare consist of a burner installed at elevated position, equipped with a high-energy ignition Pilot and a flame detection system via Thermocouple.
The combustion air is natural conveyed from the bottom part of flame shield and the combustion temperature will be max. di 800 °C .
The height of this flare are calculated according to the heat radiation released from burning to the ground and that will ensure an adeguate level of protection to people and equipments that are within range of the flare.
This type of Flare develops a luminous flame which extends beyond the top part, so the combustion temperature and emissions monitoring are difficult to control.
The ignition system is automatic type, operated by the electrical panel installed of the flare’s bottom side and initially involves the pilot’s ignition and subsequently the opening of the main Biogas valve.
The gas train and all accessories such as valves, flame arrestor, pressure gauge and other, are installed at ground level.
Hidden Flame — Mod. FE
This type of flare is designed for the purpose of contain the flame in order not to make it visible from the outside and is adopted when is not required a hight combustion efficiency and its traceability is not required.
The flare consist of a burner installed at elevated position, equipped with a high-energy ignition Pilot and a flame detection system via UV scanner.
The combustion air is natural conveyed from the bottom part of flame shield. Incase of specific request it’s possible to get a control system by installing an automatic damper via Termocouple immersed into the combustion chamber zone, automatically modulates the appropiate air flow, ensuring the constant combustion temperature up to a max.un max. di 800 °C (visible and adjustable from control panel).
The supporting structure is composed of a vertical flame shield, (without insulation) and specially sized to contain the flame inside.
The ignition system is automatic type, operated by the electrical panel installed of the flare’s bottom side and initially involves the pilot’s ignition and subsequently the opening of the main Biogas valve.
This Biogas Flare, unlike to elevated type, developan influential radiation value at ground, since the flame is fully containedwithin the flame shield.
The gas train and all accessories such as valves, flame arrestor, pressure gauge and other, are installed inside the supporting structure.
Enclosed Flame — Mod. HE
This type of flare is designed in order to obtain ahigh combustion efficiency and thus obtain values of CO and NOx downstream of the combustion, very low and traceable truogh dedicate nozzle accessible from outside.
The high efficency flare consist of a burner installed at the base, equipped with a high-energy ignition Pilot and a flame detection system via UV scanner.
The combustion air is conveyed by means of an automatic damper which by means of a Termocouple immersed into the combustion chamber zone, automatically modulates the appropiate air flow, ensuring the constant combustion temperature up to a max.un max. di 1.200 °C (visible and adjustable from control panel).
The supporting structure is composed of a vertical combustionchamber, internally coated with ceramic fiber and specially sized to ensure appropriate residence time of the gas inside the combustion chamber.
The ignition system is automatic type, operated by the electrical panel installed of the flare’s bottom side and initially involves the pilot’s ignition and subsequently the opening of the main Biogas valve.
This Biogas Flare, unlike to elevated type, develop an influential radiation value at ground, since the flame is fully contained within the combustion chamber.
This model also allows a suitable combustion even in presence of very low amounts of methane in the Biogas ( from 25% to 70% in volume and with a Turn down 5:1 ).