1.25MPA ASME Vertical Gas Fired Combi Boiler Tightening Tube Arrangement

Product Type

YYL(W) type vertical(horizontal) type fuel oil(gas) heat boiler

Product Range

Rated thermal power: 0.7MW - 29MW (60xl04Cal/hr - 2500xl04Cal/hr)
Design pressure: 0.6MPa - 1.6MPa
Specific parameters are shown in Table6

Our Company

Founded in 1985, Zhangjiagang Hua Dong Boiler Co., Ltd is a professional manufacturing company for boiler and pressure vessel. Our company covers an area of more than 100,000 square meters, with more than 500 workers and more than 150 engineering technicians of various types. Our company holds "S" and "U" stamps of ASME (American Society of Mechanical Engineers) standards, Class-A Boiler Manufacturing License, D1D2 Pressure Vessel Manufacturing License of China. We have established and maintained a Quality Management System certified according to the international Quality Standard ISO9001. Hua Dong has developed a series of progress technologies in the field of manufacturing of boiler and pressure vessel With about 36 years' technical accumulation and innovation. Hua Dong has more than 100 invention patents and utility model patents in such aspects as boiler combustion, heat transfer and structure. The boiler products of Hua Dong include: power boiler, steam boilers, hot-water boilers, organic thermal oil boilers which fueled by the combustion of oil, natural gas, coal, biomass, electric heating, waste-heat, etc. Products are widely used in power generation, heating, chemical industry, textile industry, food industry, paper industry, pavement, plastice, rubber, wood, etc.. Our products not only serve well for all over China, but also are exported to such countries / regions as USA, Japan, Australia, Russia, Vietnam, Philippine, Malaysia, Indonesia, Pakistan, Kazakhstan, Egypt, and Africa.

Structural features of this series of products

• There are two types of structure: vertical(YYL) and horizontal(YYW).
• The boiler surface adopts the tightening-tube-arrangement with spiral structure. The chimney adopts the three-pass arrangement.
• An air preheater or a water/steam transformer is arranged behind the boiler, reducing the temperature, improving the thermal efficiency of the boiler.
• The quick opening door or the observation door is equipped for the convenience of checking the internal inspection and maintenance.

• Technical Parameter

  Cement production line capacity t/d		1000	2500	5000	10000
  Boiler inlet flow Nm3/h	Kiln(front)	60000	88000	243000	472000
  	Kiln(tail)	76000	170000	328000	612000
  Boiler inlet gas temperature℃	Kiln(front)	370	360	380	390
  	Kiln(tail)	360	320~360	330	330
  Rated evaporation t/h	Kiln(front)	5.8	7.25	24	50
  	Kiln(tail)	7.5	10~15.8	20~24.6	35.5
  Rated steam pressure Mpa	Kiln(front)	1.25	1.25	1.25	1.25
  	Kiln(tail)	1.25	1.25	1.25	1.25
  Rated steam temperature℃	Kiln(front)	340	330	350	360
  	Kiln(tail)	340	300~340	310	310
  Boiler structure	Kiln(front)	Vertical	Vertical	Vertical	Vertical
  	Kiln(tail)	Vertical	Vertical and Horizontal	Vertical and Horizontal	Vertical

Oil/Gas Thermal Boiler System Diagram

Parameters Table 6