Introduction of HRSG - HRSG is composed of boiler barrel, mobile smoke hood, furnace mouth
section flue, inclined 1 section flue, inclined 2 sections flue,
end 1 section flue, end 2 sections flue, feeding tube (feeding
chute), oxygen nozzle, nitrogen sealing device and nitrogen sealing
plug, manhole, differential pressure device, support and hanger of
flue.
- HRSG boiler is divided into six circulation loops, each circulation
loop is composed of the down pipe and up pipe, each section of the
flue feed water from the boiler tube through the down pipe into the
lower collection box of each flue into each heating surface, water
through the heating surface to produce steam into the inlet
collection box, then by the rising pipe into the pot.All flanges
are connected with flanges.
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Features of HRSG | Kiln (AQC) HRSG Features | Kiln (SP) HRSG Features | | 1.Modular assembly structure, reliable sealing expansion | 1. Heating surface tubes and headers with privildged connection
structure, reducing mechanical shock and vibration | | 2. Adopt wear fin tubes, boiler pressure parts life assurance | 2. By mechanical vibration cleaning mode, continous cleaning mode
little impact on system operation | | 3.Unique flash technology, the boiler outlet temperature is reduced
to below 90ºC | 3.Set sealed scraper gray machine, greatly reducing dust tail. |
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Parameters of HRSG | 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 |
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Working Process of HRSG - The combustion of fuel oil, gas and coal produces high-temperature
flue gas to release heat. The high-temperature flue gas enters the
furnace chamber first, then enters the waste heat recovery device
in the front smoke box, then enters the pyrotechnical pipe, and
finally enters the waste heat recovery device in the flue pipe of
the rear smoke box.
- The high-temperature flue gas turns into low-temperature flue gas
and is discharged into the atmosphere through the chimney.Because
the waste heat boiler greatly improves the utilization rate of the
heat released by fuel combustion, this kind of boiler is very
energy-saving.
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Information about HDB - Hua Dong Boiler Co., Ltd. is a high-tech enterprise specialized in
manufacturing boilers. Established in early 1985s, has two
manufacturing bases, this company covers 400,000 ㎡ with fixed
assets amounting to USD 110,000,000. There are 1100 employees
including 150 technicians and 600 coded welders.
- Hua Dong holds the manufacturing licenses for Grade A boilers and
Grade A1&A2 pressure vessels issued by Chinese General
Administration of Quality Supervision, Inspection and Quarantine;
also it holds the "S" and "U" "NB" stamps issued by American
Society of Mechanical Engineers; meanwhile, this Company has passed
the certification of ISO9001, SO3834, EN12952 Quality Management
System.
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