Product Introduction
The new DZL series hot water boiler is a single-drum longitudinal water-fire tube shell boiler with a chain grate. Water walls act as radiant heating surfaces, while threaded smoke tubes provide convection heating. The furnace wall uses heat-resistant concrete, and the boiler is enclosed with a protective shell.
With a top-mounted drum and symmetrically arranged headers, the boiler features a spark baffle for high combustion efficiency.
Adopting arched tube plates, threaded smoke tubes and header return water injection, it effectively solves problems such as tube plate cracking, tube bursting, low efficiency and poor coal adaptability.
Specification
| Item | DZL0.7-0.7/95/70-SCII DZL0.7-1.0/95/70-SCII | DZL1.4-0.7/95/70-SCII DZL1.4-1.0/95/70-SCII | DZL2.8-0.7/95/70-SCII DZL2.8-1.0/95/70-SCII | DZL4.2-1.0/95/70-SCII | DZL5.6-1.0/95/70-SCII DZL5.6-1.25/95/70-SCII | DZL7-1.0/95/70-SCII DZL7-1.25/95/70-SCII (Upper & Lower Modular Assembly) | |
| Rated thermal power(MW) | 0.7 | 1.4 | 2.8 | 4.2 | 5.6 | 7 | |
| Rated outlet 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(m²) | 2.22 | 4.1 | 5.85 | 7.95 | 9.75 | 10.77 | |
| Exhaust gas temperature(℃) | 135~145 | ||||||
| Thermal efficiency(%) | 84~86 | ||||||
| Weight of biggest part for transportation(t) | 17 | 23 | 25 | 35 | 45 | 33 (side) 28 (underside) | |
| Overall dimension partFor transportationL×W×H(mm) | 5100×2200×3000 | 5500×2300×3300 | 6600×2600×3600 | 7500×2900 ×3800 | 8100×3100 ×3800 | 7700×3200×3600 8600×3000×2600 | |
| Note: Due to continuous technological development, our company may change technical parameters without prior notice. Please understand! | |||||||
Advantages
01
Wide fuel adaptability.
Fuel adaptability wide, can burn biomass pellets, sawdust, rice husk, straw and other biomass fuels.
02
High thermal efficiency.
High thermal efficiency with threaded smoke tubes for enhanced heat transfer and self-cleaning.
03
Sufficient & clean combustion.
Reasonable furnace design for sufficient combustion, low slag and less dust emission.
04
Reliable structure.
Arched tube plate structure eliminates stress concentration and prevents tube plate cracking.
05
Safe and stable operation.
Natural circulation under power failure, effectively avoiding water wall tube bursting.
06
Compact structure.
Compact structure, stable operation, easy installation and low operation & maintenance cost.
