HTF Heaters are used in many different applications. Wide range temperature from -80 to 400 ºC, -110 ºF to 750 ºF, makes its use very flexible and friendly for many different industrial or service fields, but specially at medium-high temperatures from 200 ºC, 400 ºF, HFT Heaters are practically the only realistic way to heat up an industrial process.
Basically HTF heaters are industrial hot oil boilers where a heat transfer fluid, HTF, is circulating into a two concentric helical coils. The combustion of a fuel as natural gas, light oil, heavy fuel oil, or other, produces a flame that heats these coils by convection and radiation. Even there are also available on the market dual burners in order to choice the more convenient fuel. Through main pumps the HFT Heaters supply heat transfer fluid at a certain temperature to the different consumers.
Main industrial applications for HTF Heaters are:
- Tank storage facilities
- Asphalt bitumen processing
- Heavy Fuel Oil HFO tanks
- Resin reactors
- Thermal solar plants
- Plastic and rubber
- Gas processing
- Distillation columns
- Heat exchangers
- Drying processes
- Flexography and gravure printing machines
- Textile stenter machines
- Frying machines
- Ironing machines
HTF Heaters are also used to produce steam, hot air or hot water indirectly through a suitable heat exchanger. Normal HTF Heaters are three flue gas passes execution. With this system is easy to achieve an efficiency of 85-90 % according to the hot oil temperature. As high is thermal fluid temperature, higher is smokes temperature. So, in that case efficiency will be lower. But this efficiency is global, no other losses because of the energy transport.
The execution can be vertical or horizontal having always a chimney for exhaust. In electric HTF heaters there is not combustion, so in that case, performance is 100 % without chimney.
Pirobloc vertical gas fired HTF Heaters 3000 kW each
You can see the P&ID of a General P&ID HTF circuit: General P&ID HTF circuit
Pirobloc horizontal gas, LFO and HFO fired HTF Heaters 2700 kW each according ASME code U Stamp.