WRF type fuel gas high-temperature (medium temperature) hot air boiler

After the hot blast stove is started, the fuel is burned by the burner to produce high-temperature flue gas. The multi-layered inner lining transfers the heat of the high-temperature flue gas to the heated air. After multiple passes, the combustion engine flue gas is discharged into the atmosphere through the chimney; The air that needs to be heated is sucked into the hot air stove by a blower or a thermal device through the air outlet. After absorbing heat, the temperature rises to the rated value and is sent out from the hot air outlet. When the hot air temperature reaches the rated upper limit temperature, the burner will automatically stop burning or switch to small flame combustion. When the hot air temperature drops to the rated lower limit temperature, the burner will reignite or switch to large flame combustion. The heating speed is achieved by adjusting the inlet valve.

Working Principle:

After the hot blast stove is started, the fuel is burned by the burner to produce high-temperature flue gas. The multi-layered inner lining transfers the heat of the high-temperature flue gas to the heated air. After multiple passes, the combustion engine flue gas is discharged into the atmosphere through the chimney; The air that needs to be heated is sucked into the hot air stove by a blower or a thermal device through the air outlet. After absorbing heat, the temperature rises to the rated value and is sent out from the hot air outlet. When the hot air temperature reaches the rated upper limit temperature, the burner will automatically stop burning or switch to small flame combustion. When the hot air temperature drops to the rated lower limit temperature, the burner will reignite or switch to large flame combustion. The heating speed is achieved by adjusting the inlet valve.

Technical features:

1. The hot air stove is a universal hot air heating device, which has been optimized and designed with a reasonable structure. The whole machine integrates combustion and heat exchange, and uses indirect heating technology for heat exchange at the high-temperature parts of the furnace body.

2. Smoke and air go their separate ways, and the heating air is pure, pollution-free, with high thermal efficiency, fast heating, small size, easy installation, reliable use, and long service life. This equipment is equipped with automatic temperature control and adjusts the temperature automatically according to the setting.

3. This furnace type adopts high temperature resistance measures, which greatly improves its service life compared to a tubular hot blast stove. The heat exchange part is less prone to dust accumulation, easy to clean, and has stable thermal performance. The fuel is suitable for diesel, natural gas, and liquefied gas as fuel.
Technical parameter table 1:

model project			WRF-10	WRF-20	WRF-30	WRF-40	WRF-60
rated power		kw	120	240	350	500	700
Rated heating capacity		Kcal	100 thousand	200 thousand	300 thousand	400 thousand	600 thousand
working medium			air
Applicable Temperature		℃	60-400
thermal efficiency		%	≥85%
Applicable fuel			Diesel/heavy oil/natural gas/liquefied gas/city gas
fuel consumption	diesel	kg/h	12.23	24.45	36.67	48.89	73.34
	natural gas	Nm3/h	14.7	29.42	44.2	58.83	88.24
power supply voltage		V	220				380
power consumption		KW	0.1	0.23	0.38	0.56	1.28
Overall dimensions	long	mm	2400	2400	2700	3200	3500
	wide	mm	1200	1300	1500	1600	1700
	tall	mm	1500	1700	1900	2000	2200