AUXILIARY SYSTEMS

Ignition Systems Ancillaries

The Hamworthy (Airoil-Flaregas) proprietary purge reduction devices include: Flame Front Ignition Gas Seals (Purge Reduction Devices) Several types of flare pilot Ignition systems can be provided. The most usual is by the "flame front system" in which an ignition tube to the pilot is filled with a combustible mixture. This system utilises a manual or automatic control panel located at ground level which provides a combustible mixture of gas and air in a tube from the panel to the pilot at the flare tip. The system ignites the combustible mixture which then travels up the tube and ignites the pilot. Depending on the system utilised, the panel can be up to 1000 metres from the flare tip. Pilot flame monitoring and automatic re-ignition can also be incorporated. The Gaseel (also known as the Velocity Industrial seal) The AFS Flarex (also known as the Static seal) Water Seals To add extra protection against air ingress, particularly in the presence of high hydrogen content gases and when the gas can reach the flare at high temperatures, a water seal may be used. The Hamworthy (Airoil-Flaregas) range of water seals provides anti-pulsation devices as a standard, the type used is dependent on the back pressure necessary. This is important when used in combination with another flare system such as a ground flare. The water seal may be integrated within the stack base or supplied as a separate drum. Knockout Drums and Mist eliminators Hamworthy (Airoil-Flaregas) designs and supplies knockout drums either to the API standard, or in the form of a Hamworthy (Airoil- Flaregas) 'Mist Eliminator' which uses a tangential inlet to create a industrial cyclone effect within the drum. These may be integrated within the stack base, combined with the water seal in the stack base, or as stand-alone units separate from the flare. Steam Controllers To control the flow of steam to a steam assisted flare, Hamworthy (Airoil-Flaregas) offers a range of devices including ground mounted infra-red detection units and the stack mounted 'Flarescan' which detects the radiant heat from the elevated flare. These units enable the necessary feedback to the steam control valve, thus ensuring the correct ratio of steam/flare gas to ensure smokeless combustion.

Other Types of Flares Supplied

Portable Flares Pit Flares Liquid Flares Special Burn Pits Ammonia Flares Biogas Flares- Elevated and Ground Steelworks Flares

Flame Front Ignition Configurations

Electrically operated spark ignition of the flame front Manually operated 'triboliter' spark ignition of the flame front (in case of electrical failure) Flame front splitter systems, enabling the use of a single line between the ignition panel and the flare pilots Self-inspirating flame front systems Automatic re-ignition systems Pilot flame on/off indication from pilot mounted thermocouples

High Energy Direct Spark Pilot Ignition

By mounting a specially designed proprietary 'HE' ignitor inside the flare pilot nozzle, the Hamworthy (Airoil-Flaregas) system ensures immediate industrial safe and reliable ignition of the pilots whenever necessary