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Home Hot water boilerBiomass-Fired Pressurized
Biomass-Fired Pressurized
  • Biomass-Fired Pressurized

Biomass-Fired Pressurized Hot Water Boiler

Brand: Delivery Date: 5-10 days Place of Origin: Made in China China Shipping: WorldwideKey Features: This boiler is a single-drum vertical boiler with a water-fire tube shell structure, using a chain grate for combustion, and includes threaded smoke pipes and heat-resistant concrete for efficient heat exchange and durability. 
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Technical Parameters

Item \ model DZH0.35-0.7/95/70-SC DZHO.7-0.7/95/70- S0
DZH0.7-1.0/95/70- S0l 		DZH1.4-0.7/95/70- SC
DZH1.4-1.0/95/70- S0 		DZH2.8-0.7/95/70- SC
DZH2.8-1.0/95/70- SCll
Rated thermal power(MW) 0.35 0.7 1.4 2.8
Rated pressure (MPa) 0.7 0.7/1.0 0.7/1.0 0.7/1.0
Rated supply water temperature (℃) 95 95 95 95
Rated Return water temperature (℃) 70 70 70 70
Heating area(m?) Body 21.31 33 50 93
Economizer 8.28 15 30 55
Effective area of grate(m? ) 1.28 2.1 3.36 5.2
Fuel type Il class bituminous coal, low leave heat value Q ~ 21000KJ/Kg
Fuel consumption (kg/h) ~ 76 ~ 150 ~ 301 ~ 602
Exhaust gas temperature (℃) 135 ~ 145
Thermal efficiency (%) 83 ~ 84
Weight of biggest part
for transportation (t) 		8 12 15 22
Overall dimension part for transportation
L×W×H（mm） 		3228×2000×2656 4108×2200×2915 4700×2300×3270 5600×2550×3563
Notes: Parameter is for reference only,if any changes should follow Actual drawings

Item / model 		DZL0.7-
0.7/95/70- SCIl
DZL0.7-
1.0/95/70- SCll 		DZL1.4-
0.7/95/70- SCl
DZL1.4-
1.0/95/70- SCll 		DZL2.8-
0.7/95/70- SCl
DZL2.8-
1.0/95/70- SC 		DZL4.2-
1.0/95/70- SC 		DZL5.6-
1.0/95/70- SC
DZL5.6-
1.25/95/70- SC 		DZL7-1.0/95/70-
SCIl
DZL7-1.25/95/70-
Rated thermal power(MW) 0.7 1.4 2.8 4.2 5.6 7
Rated supply water pressure (MPa) 0.7/1.0 0.7/1.0 0.7/1.0 0.7/1.0 1.0/1.25 1.0/1.25
Rated supply water temperature (℃) 95 95 95 95 95 95
Rated Return water temperature(℃) 70 70 70 70 70 70
Heating area(m2) body ~33 ~50 ~100 ~170 ~200 ~250
Economizer 10 30 55 86 98 174
Effective area of grate(m) 2.22 4.1 5.85 7.95 9.75 10.77
Fuel type Il class bituminous coal, low leave heat value Q ~ 21000KJ/Kg
Fuel consumption (kg/h) ~ 151 ~ 302 ~ 600 ~ 880 ~ 1150 ~ 1450
Exhaust gas temperature (℃) 135 ~ 145
Thermal efficiency (%) 83 ~ 84
Weight of biggest part for transportation (t) 17 23 25 35 45 33（upside）
28（underpart）
Overall dimension part for transportation
L×W×H（mm） 		5.1×2.2×3 5.5×2.3×3.3 6.6×2.6×3.6 7.5×2.9×3.8 8.1×3.1×3.8 7.7×3.2×3.6
8.6×3.0×2.6

Supply Water and Heating System Schematic

Biomass-Fired Pressurized Hot Water Boiler

Why choose
Biomass-Fired Pressurized Hot Water Boiler?

The new model of hot water boiler features a single-barrel, vertical, water-fire tube, shell-type layout with a chain (moving) grate for combustion equipment. The left and right sides of the furnace are equipped with water-cooled walls that serve as the radiant heating surfaces, with the two wings of the furnace functioning as the convection heating surfaces.

Internally, the boiler barrel contains threaded smoke pipes that act as additional convection heating surfaces. The furnace walls are constructed using a novel technique of integral pouring and tamping with heat-resistant concrete, and the outer casing of the boiler's main body is enclosed with a three-dimensional shaped protective guard.

The overall structure of the boiler body utilizes an elevated drum with water-cooled wall tubes and collection boxes symmetrically arranged on both sides. The drum is composed of a cylinder body and front and rear tube plates welded together. The boiler’s furnace is designed with a spark-arresting wall to ensure high combustion efficiency.

Boiler Features

An innovative drum design using an arch tube plate and threaded smoke tubes, shifting from a quasi-steel to a quasi-elastic structure, reducing stress and solving plate cracking issues.
Riser rows at the bottom prevent sediment build-up and ensure effective cooling, especially avoiding drum bulging.
High-efficiency threaded smoke tubes significantly enhance heat transfer, speeding up heating and pressurization for improved thermal efficiency.
Compared to similar boilers, its compact structure reduces the boiler room's construction investment.
Offers stable operation with easy adjustments and reliable output.
A manifold backwater ejection system increases water speed in risers, preventing under-cooled boiling and tube rupture during power outages without special shutdown measures.
Threaded smoke tubes increase heat transfer efficiency and reduce ash deposition, aiding in self-cleaning.
Furnace design and exit flue modifications help reduce dust, ensuring emissions meet environmental standards.

  • Host maintenance

    12 months

  • Auxiliary repair

    12 months

  • Guidance on installation

    Throughout

  • Guarantee

    Lifetime