Gas/Oil Fired Thermal Oil Boiler
Product Introduction
1. Working principle: The fuel is fully burned in the combustion chamber, and the high-temperature flames and smoke generated transfer heat to the heat transfer oil inside the coil. The heat transfer oil is heated to the desired temperature and pumped by a circulation pump to the heating equipment, releasing heat and returning to the boiler, forming a closed-loop cycle.
Core difference
Compared to steam boilers, it can achieve high temperatures of over 300 ℃ under normal pressure or low-pressure liquid phase.
2. No need for complex pressure vessel inspection, and the system has no condensation water loss and higher thermal efficiency.
Typical applications: Chemical reactor heating, asphalt/heavy oil insulation, textile printing and dyeing shaping, wood/artificial board hot pressing, food baking, pharmaceutical drying, building materials steam curing, etc.
Main parameters and performance：
|
Model |
Rated thermal power |
Maximum operating temperature |
Design pressure |
Thermal efficiency |
Applicable fuel |
|
YQW-700 |
700 kW |
320℃ |
0.8 MPa |
≥92% |
Gas/oil |
|
YQW-1400 |
1400 kW |
320℃ |
0.8 MPa |
≥93% |
Gas/oil |
|
YQW-2100 |
2100 kW |
320℃ |
0.9 MPa |
≥93% |
Gas/oil |
|
YQW-3500 |
3500 kW |
340℃ |
0.9 MPa |
≥94% |
Gas/oil |
|
YQW-7000 |
7000 kW |
350℃ |
1.0 MPa |
≥94% |
Gas/oil |
Core selling points
High temperature and low pressure, safe and reliable
At a working pressure of around 0.8 MPa, it can stably output heat above 300 ℃, significantly improving safety and minimizing the risk of explosion.
Accurate temperature control to improve product yield
Using PLC and PID algorithm control, combined with imported gas proportional valve, the oil outlet temperature can be controlled within ± 1 ℃, suitable for temperature sensitive chemical and precision coating industries.
High thermal efficiency and low operating costs
Equipped with a standard exhaust heat recovery device, the exhaust temperature can be reduced to below 120 ℃, and the comprehensive thermal efficiency can reach 92% -95%.
Environmentally friendly and low nitrogen, policy friendly
By adopting fully premixed or FGR (flue gas recirculation) low nitrogen combustion technology, NOx emissions can be less than 30mg/m ³.
Fully automatic operation, unmanned operation
Fully automatic control including one key start, automatic ignition, furnace blowing, over temperature alarm, oil shortage interlock, etc.
Main advantages
|
|
Gas/oil fired thermal oil boiler |
Traditional steam boiler |
|
Operating pressure |
Normal or low pressure (≤ 1.0MPa) |
Medium high pressure (≥ 1.25MPa) |
|
Obtain 300 ℃ |
Easy, direct output |
Difficult, requiring ultra-high voltage and expensive equipment |
|
System loss |
No condensed water loss, fully enclosed circulation |
There are losses due to steam condensation, leakage, and dripping |
|
Startup speed |
The cold furnace can reach working temperature in about 20-30 minutes after starting |
Usually takes more than 45 minutes |
|
Annual inspection of equipment |
Usually only requires annual external inspection, simple |
Professional internal inspection is required, and the procedures are complicated |
Key considerations for selection
1. Clarify the maximum process temperature: When selecting, leave a margin of 10% -15%.
2. Confirm the fuel type and pressure: whether the natural gas calorific value and supply pressure meet the requirements; Light oil needs to consider storage tanks, filters, and preheating.
3. Integrity of supporting equipment: It must include a high-level expansion tank, a low-level oil storage tank, and an oil and gas separator. Confirm whether the complete set is provided when quoting.
4. Regarding low nitrogen emissions: Is it necessary to undergo emission testing and certification.
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