Certificate of Compliance
Picture of PWHT Burners

High Velocity Oil Fire Burner
Picture of High Velocity Gas Fire Burner

High Velocity Gas Fire Burners

HIGH VELOCITY BURNERS / FUEL FIRED BURNERS FOR PWHT

INCERTECH high velocity burners have been in use for years in the industry and offered its relentless, quality and safe service for all types of heat treatment like PWHT/Stress Relieving, Solution annealing and refractory drying applications. The use of high velocity burners is an effective method of curing and drying out moisture from refractory materials in the start-up process. Working under carefully controlled conditions, the risk of damage to refractories caused by spalling can be fully eliminated and thereby extend the life of the refractory.

In external firing method, large vessel seam LSR operation can be carried out by applying heat under controlled conditions using incertech high velocity fuel fired burners inserted via suitable openings into the temporary furnace and the products of combustion exhausted through suitable openings to the top of the furnace with mechanical control dampers arrangement.

A large variety of Storage Tanks, LPG Bullets, Pressure Vessels, Spheres and welded fabrications structures can be subjected to Post Weld Heat Treatment as per ASME & other international Codes by utilizing Incertech High Velocity Diesel/Gas Burners.

The temperature uniformity that can be achieved by direct internal fuel firing method ensures that even the most stringent standards and specifications are met fully. The method utilise burner(s) directly inserted into the vessels through suitable openings such as man ways, nozzles etc It is then of most importance that throughout the heating and cooling cycle, the expansion and contraction of the vessel must be closely monitored and controlled to avoid any distortion or deformation in the vessel. For this moving saddles play a crucial role and absorb all such stresses that may cause deformation.

High Velocity Fuel (Oil/Gas) Burners & equipment from INCERTECH have always led the way and been in use for years in carrying out:

  • Heat treatment (PWHT) of vessels, columns, and spheres, by internal firing
  • Drying out of refractory linings
  • Use as the thermal power source in temporary heat treatment furnaces

Some of the KEY FEATURES of our BURNERS used for HEAT TREATMENT are :

  1. Incertech expert tradesmen ensure our cutting edge BURNERS are always serviced and ready for dispatch to any project site at short notice.
  2. The Total Combustion System employed by Incertech are specially designed by us and manufactured in compliance with all relevant quality and safety international Standards.
  3. The Most important special feature of our HIGH VELOCITY BURNERS is its lightweight and portable nature, which enables easy placement of our burners at locations best suited to get optimum circulation of flue and control during the PWHT Cycle.
  4. Incertech uses the conventional method to reach and maintain uniform heat throughout the Refractory lined equipment, with a specialised high velocity burner system for dry-out and pre-heating applications, due to its excellent turndown ratio.

ADVANTAGES OF INCERTECH HIGH VELOCITY BURNERS OVER OTHER CONVENTIONAL BURNERS:

  1. Mass flow control of hot gases ensures there are no stagnant areas or hot spots / localised heating, within the object equipment, thereby promoting a uniform temperature throughout the operation.
  2. The turbulence of hot gases created by the High Velocity Burners promote a scrubbing action of the refractory surface, ensuring rapid and safe removal of any residual moisture, and hastening the heat-transfer process throughout the refractory thickness.
  3. The extremely high, turn-down ratio ensures accurate temperature control at all levels of fuel and combustion air flow, enabling the fastest gradient permitted by the refractory supplier's recommendations to be safely achieved, while resulting in substantial savings in plant downtime.
  4. Where Gas / Oil is the fuel medium, all burners are fully protected by flame safety units, eliminating potential explosive situations from arising.
  5. The burners have interchangeable outlet nozzles, which have been designed to suit the specific openings available in the vessel or furnace, thereby ensuring that the hot gases are distributed in the most efficient and uniform manner.
  6. Incertech provides all necessary spare equipment as standby to avoid any interruption during processes at far off remote project sites.

The Combustion unit is designed for manual operation, while automatic control can also be provided.

  1. Fuel used can be LPG, Natural Gas or Propane for gas fired burners and HSD or LDO for Oil Fired Burners
  2. It is suitably controlled by PID type controllers for automatic burners and by operating valve train for manual burners in order to achieve complete combustion
  3. Combustion air is fan blown, requiring 380/440 V, 50 Hz, 3 phase electrical Supply
  4. Flame supervision is by flame relay and U.V. flame sensor
  5. Ignition is achieved by direct spark ignition transformer & fitted spark probe

For ALL your heating and combustion needs CALL INCERTECH for their BURNERS !