Product Details

Water and Fire Tube Wood Pellet Coal Fired Hot Water Boiler for Residential heating

New type DZL(H) hot water boiler is the single drum longitudinal type water and fire tube shell water boiler,the burning equipment is the moving grate.The furnace wall take heat resistance as the whole trumpet bell and ramming to be the new process,the boiler host outside is the solid figure guard board shell.

This hot water boiler adopt chain grate,suitable for molding pellet fuel,can add a small amount of wood,wood block,also can burn with coal.

This boiler adopt the newest achievements in scientific research, such as:Arched Tube plate, thread smoke tube etc, solve the tube plate crack of shell type boiler, Water wall tube burst, low efficiency, insufficient of power,Poor pf coal type adaptability etc.

Thermal Power : 0.7mw/h, 1.4mw/h, 2.8mw/h, 4.2mw/h, 5.6mw/h,7mw/h,10.5mw/h,14mw/h

CDZL Boiler is Single drum, automatic fuel feeding, automatic water feeding, automatic ashremove

Fuel for CDZL hot water boiler : Coal, biomass, rice husk, wood pellet, staw pellet, saw dust, wood waste, peanut shell so on.

Combustion Processe:

The fuel burning at the furnace through, the exhaust gas flow from the boiler barrel bottom to the smoke window outlet on the Eight character wall, then enter convection bank at the both wings, next enter the thread smoke tube through the front smoke box, pass by economizer, dust remover, and induced draft fan, finally discharged to the atmosphere by chimney.

Feeding System Introduction:

1.Conveyor feeding mode (For biomass particles)

2.Elevating automatic feeding (For coal)

3.Blast feeding (For size of less than 50mm of small sawdust, or rice husk)

4.Screw feeder

The Most Popular Models Of The CDZL biomass coal wood fired hot water boiler

Boiler Model	DZL0.7	DZL1.4	DZL2.8	DZL4.2	DZL5.6	DZL7	DZL10.5	DZL14	DZL21	DZL29
Rated thermal power(MW)	0.7	1.4	2.8	4.2	5.6	7	10.5	14	21	29
Rated steam pressure(Mpa)	0.7/1.0/1.25
Rated output water temperature(℃)	95/115/130
Rated return water temperature(℃)	70
Thermal efficiency(%)	>80
Grate effective area(m3)	1.85	3.4	5.18	7.55	9.34	12	18	22.85	27.5	34.5
Exhaust gas temperature(℃)	165	172	155	155	171	170	146	157	158	150
Fuel consumption(kg/h)	110	222	430	633	855	1068	1587	2116	3160	4327
Max transportation weight(t)	14.2	22.6	27	45.5	40	45	55.6	19.02	25.6	19.68

hot water Boiler Advantegs and Features

Durable and Long life time (more than 10years).

less heat dissipation, high thermal efficiency.lowest fuel consumption, lower power consumption.

with 95% high efficiency dust collector, more Eco-friendly.

Full automatic control, Protection devices for overheating, overpressure, lacking water, leak detection, flameout

The featured structure of the boiler: Threaded pipe, Airfoil flue , Convex tube plate , The backwater towards hightemperature tube plate, Simple loop circuit, Dust separated chamber, big furnace, compact structure so on.

Details Inside the Boiler:

Chain Grate: Strong, high temperature resistant, chain grate bar is close connect, the coal or other fuel can not draw down .

Smoke Tube and water tube: Enough smoke tube and water tube, make the boiler high efficiency. the smoke tube can be cleaned easily.

The boiler have man hold and hand hole, which make the boiler easy to maintain and repaire.

Welding: Our boiler use the advanced seamless welding technology.

Design: the most suitable design, make the boiler easy to install and operate.

Hot water Boiler Manufacturing Standard:

Auched tube plate standard: GB713-1997

Smoke Tube standard: GB3087-1999

Boiler Drum standard: GB713-2008

Water Tube standard: GB3087-1999

Boiler picture