Fired Thermic Fluid Heater

Product Details:

Salient Features of This Model Furnace is designed for multi fuel options, with major thrust on proper selection of combustion grate, furnace height, combustion volume, fuel feeding systems. To ensure efficient combustion & lesser heat loss. Coils are designed with optimum flow consideration to gain maximum heat from flue gases. Coils are tested at 3 stages before final dispatch as a part of Thermotech’s stringent quality control. ID Fan, FD Fan & booster fan (in any) are selected as per fuel’s perfect air-fuel ratio requirement, which ensures optimum air quantity for combustion & thus saves power consumption. Expansion Tank capacity is specifically selected after consulting total holdup of Thermic Oil. Deaeration Tank is specially designed considering flow & temperature requirement. Thermotech offers complete solution of Thermic Fluid heating system along with Pipeline, Pollution control equipments, fuel handling, etc on Turnkey basis. Auto Controls & Safety

1. Thermic Fluid Temperature control Digital temperature indicator-cum-controller cut of ID/FD fan of preset temperature and restart of preset temperature and restart of preset differential temperature to maintain system temperature.
2. Stack Temperature Control A blind temperature controller cut of ID/FD fan and sound alarm if stack temperature exceeds to preset temperature.
3. Low/NO Flow of Thermic Fluid Differential pressure switch connected across intel and outlet headers signals low flow alarm in case of low fluid pressure of Thermic fluid in coils.
4. Low Level of Thermic Fluid The visual level indicator and float actuated lever switch fitted in expansion tank signals alarm in case of low level thermic fluid in the system.
5. Thermic Fluid Pump Motor Trip In case of thermic fluid pump motor trip, electrical interlocks, cut off ID/FD fan.
6. Power Failure Diesel engine drive keeps thermic fluid moving in the system to prevent its degradation and overflow.
7. Excess Furnace Bed Temperature Digital temperature indicator-cum-controller senses furnace bed temperature and cut off ID/FD fan above set value(for FBC unit). Benefites : Multi-Fuel Option Low Power Consumption Energy Optimization Low Maintenance

Product Details:

The Oil Gas Fired Vertical Thermic Fluid Heater systems essentially comprises of a fully automatic packaged Oil/Gas fired heater. As a result thermic fluid can be heated up to 300°C at near atmospheric pressure, with efficiency as high as 87% on NCV of Oil/Gas fuel. The capacity ranges from 1 lac kcal/hr to 25 lacs kcal/hr in Oil/Gas firing.

The Heat Exchanger
This is designed with an integrated combustion chamber made of M. S. Seamless/ERW boiler tube of adequate size, accurately designed concentric two start helical coil placed in insulated and mild steel shell ensuring optimum heat transfer. The combustion cambers designed as per DIN 4754 to maintain safe distance between coil tube surface and burner flame ensuring longer thermic fluid life. The system gives 87% constant on NCV.

The Burner
All the Vertical type Thermic Fluid Heater are equipped with standard adjustable pressure jet-atomizing burner.

The Fuel Systems
The system comprises of electrical pre-heater (for F.O) which heats the fuel oil at the temperature of about 120°C.

Thermic Fluid Pump
Here the hot thermic fluid oil is circulated in the system by a high temperature duty C.S. body centrifugal pump set of required capacity flow rate and head. The pump is provided with gland and bearing cooling arrangement coupled with suitable electric motor by a pull out type coupling.

Auto Controls And Safeties:

• High Fluid Temperature Switch (Return) - Digital temperature indicator cum controller cut off burner at preset temperature and indicate return oil temperature and restart burner at preset differential temperature to maintain system temperature.
• High Fluid Temperature Switch (Outlet) - Digital Temperature indicator cum controller on outlet of the thermic fluid cut off burner and sound an alarm if temperature exceed to preset temperature and put the burner in electrical lock out.
• Stack Temperature Switch - A blind temperature controller cut of burner, put in electrical lock out and sound an alarm if the stack (flue gqs) temperature exceed to preset temperature.
• Liquid Level Switch - A Magnetic float level switch cut-off burner actuated indicator lamp and sound an alarm in case of low level of Thermic Fluid in the expansion tank.
• Flame Sensor - Photocell resistor actuated indicator lamp audio-visual alarm and burner cut off in case of flame failure.
• Low Fluid Pressure Switch - Differential pressure switch actuated indicator lamp, sound alarm and put the burner in electrical lock out in case of no-flow or low fluid pressure of Thermic Fluid Oil.
• Fuel Oil Temperature Switch - Thermostate automatically cut off electric heater at preset temperature to maintain furnace oil fuel temperature and interlocking with burner allows burner to start only at preset temperature of fuel.
• Spring Loaded Relief Valve - Spring loaded Relief valve assembly at second third pass of flue gas automatically lift up and make passage to escape flue gases in case of back firing of burner and prevent damage to coil.
• Circulating Pump Motor Interlock - Thermic Fluid Oil circulating pump motor electrically interlocked, do not allow burner to start till complete oil circulation take place in the system.

Optional at extra cost:

• Stand by Thermic fluid pump set.
• Mechanical seal on Thermic fluid pump.
• Drain tank and Top up pump.
• Fuel oil pre heater.
• Temperature controlling device for user equipments.
• Chimney.