Adopt new heating furnace radiant structure, and multi-pass flue, the efficiency is high up to 95%  

 Heat-conduction oil boiler is a kind of DC-special industry boiler adopting light oil or heavy oil as fuel, heat conduction oil as heat carrier. Circulating pump compel Liquid circulation, hot liquid is transmitted to using heat equipment ,and then return to heating furnace. The boiler advanced feature is as below:

1.  Organic thermal carrier heating system continuously output highest temperature 350 at atmospheric and liquid statue. Carrier pressure is one in ten of saturate steam pressure when temperature is 300

2.  Strong high temperature load capacity, stepless adjustment can be used between ordinary temperature and 350 , the temperature can be accurately controlled in the range of requirement temperature.

3.  Adopt new heating furnace radiant structure, coil style compulsory flowing transfer and multi-pass flue, the efficiency is high up 95%.

4.  Perfect operation controlling and safety Monitoring device, multiple chain compulsory safety protection system. Conveniently operate, safe and reliable.

5.  Provide heat to more than one using heat unit at the same time, produce hot water steam, hot air and life water through heat exchanger.

6.  Organic heat carrier heating system is liquid closed circulation, hot oil used by user return to boiler through system pipe with the rest heat avoiding condensation of steam boiler and heat-losing of the boiler sludge-draining. Heat utilization and energy-saving efficiency is good.

IV.        Intelligent protection system

As same as intelligent control system, the intelligent protection system for oil-fired heat-conduct oil boiler make sure boiler operates safely. It adopts PLC programmable control, automatic temperature adjustment, search and protection. The intelligent system has following features:

 · Overheating protection and alarm

 · Overpressure protection and alarm

 · Over current protection and alarm

· High or low oil pressure protection and alarm

· Oil shortage protection and alarm

· Chain operation protection and auto-control for starting and stopping.

YLL 0.7-4.2  vertical chain grate boiler specification
model		700	1000	1200	1400	1800	2400	3000	3500	4200
rated output	KW	700	1000	1200	1400	1800	2400	3000	3500	4200
	×104KCal/h	60	80	100	120	150	200	250	300	360
efficiency		≥70	≥70	≥70	≥75	≥75	≥75	≥75	≥75	≥75
design pressure (Mpa)		1	1	1	1	1	1	1	1	1
maximum Temp.()		320	320	320	320	320	320	320	320	320
circulating flow (m3/h)		60	80	80	100	100	160	200	200	250
capacity (m3)		0.45	0.87	1	1.15	1.5	2.4	2.7	3.2	4.2
pipe diameter(mm)		100	125	125	125	125	150	200	200	250
electricity consumption (KW)		25	34	41	41	70	80	80	108	130
fuel consumption (Kg/h)		201	269	336	376	470	627	784	941	1130
weight (Kg)		11200	16000	16800	17100	23500	25500	40800	51000	58800

vertical chain grate heat conduction oilboiler