Thermal power: 29-116MW
Working pressure: 1.25-1.6 MPA
Output water temperature: 150/130/90/70
Applicable Fuel: Bituminous Coal  Biomass
Applicable industry: Heating


The corner tube boiler uses a piping system as the skeleton of the entire boiler, and it bears the full load of the boiler, which makes a non-framework boiler. At the same time, this skeleton also serves as the down tube of the boiler and upper and lower headers. The boiler drum is an external type drum, the furnace is a fully enclosed membrane wall structure, the convective heating surface adopts the flag structure. The corner boiler has the advantages of compact structure, low steel consumption and rapid temperature increase, which makes the boiler very popular. The boiler is field assembled boiler.

Technical advantages:

Safe water circulation: The boiler adopts a unique water circulation structure, the drum is free from heat and the heated water flows in one direction. In the event of a power outage, the water system does not vaporize and the water circulation is safe and reliable.

Anti-seismic Structure: Corner tube boiler adopts non-framework structure, body weight is supported by membrane water wall and down tube, and all membrane walls are all welded into one whole, with good anti-seismicity.

Complete sealed structure: All around the boiler body is made of welded membrane water walls, and the steel structure is completely sealed to prevent the occurrence of air leakage. The upper part of the boiler can be divided according to the size of the railway transportation limit. The excess air coefficient after the heating surface of the boiler tail is only less than 1.2, which not only reduces the heat loss of the exhaust fumes, reduces the power consumption of the induced draft fan, but also greatly reduces the environmental pollution of the boiler house.






DHL29-1.25/130/70-A DHL46-1.6/150/90-A DHL58-1.6/150/90-A DHL70-1.6/150/90-A

Rated thermal power

29 46 58 70

Rated working pressure

1.25 1.6 1.6 1.6

Rated output water temperature

130 150 150 150

Rated imported water temperature

70 90 90 90


Heating area


Boiler Proper

915 1631 1983 2345

Effective area of great

35.7 58.5 71.6 90.0

Available Fuel


Designed coal


Low heating value

17700 17700 17700 17700

The company’s strength

The company has advanced production processing equipment and complete testing method. the main processing equipment are serpent tube line, CNC coiler production line, membrane wall line, vertical & circle welding line, steel frame automatic welding line, digital control plasma(flame)cutting machine, CNC drum drilling, high-speed CNC flat surface drilling, high-speed header digital control drilling, 100mm three roller CNC universal binder, intersecting lines digital control cutting, CNC, robot welding equipment, 168 CNC three-dimensional bending equipment, 4 axis NC tube bending machine, 3D laser cutting machine, pipe end forming equipment, 100T universal material testing machine, metallurgical microscope, x-ray detector, hardness tester, spectrum analyzer, large scale heat treatment furnace, sand blasting and painting etc.

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