Features of the DZL series boiler 1, the usage of high-performance heat transfer components - threaded pipe, with a reasonable gas flow rate, the boiler thermal efficiency is higher 6-8 percentage points than the state high professional standards. 2, arch tube plate, thread to make pot pipe from the quasi-rigid body shell variable based elastomer with the airfoil stack, completely avoid the defects that traditional high-temperature pyrotechnic tube boiler tube plate cracking. 3, reasonable and unique water circulation loop backwater ejector device (hot water boiler), improved the increased water velocity, to avoid the water-wall tube break. 4, the usage of inertial separation of dust furnace, supplemented by high-performance multi-collector, so that the concentration of dust emission boiler to meet the demand for a class. 5, reasonable structure of the boiler does not need a steel frame can support the weight of its own. 6, the usage of energy, strong radiation furnace arch, can guarantee the stability of fuel combustion. 7, the usage of a high standard, high-quality auxiliary equipment, accessories and automatic control equipment, boiler guarantee security, stability operations, while reducing the labor intensity Boiler Operators. 8, the structure is compact, the boiler1-20t / h (0.7-14MW) can be single-layer arrangement.