Once-through boiler

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Once-through boiler

Once-through boiler

Once-through boiler SEN Series SEN-600/800/1000/1500/1700/2000/2500/3000

It is a highly efficient, economical boiler that ensures long life and safety through its uniquely structured, efficient two-row water pipe arrangement.
Product Features
  • The efficient 2-row water pipe arrangement of the unique structure ensures long life and safety without generating soot.
  • It is a highly efficient and economical boiler that achieves a thermal efficiency of over 90% using only the main body without a feedwater preheater.
  • The tubular structure with improved durability maintains high efficiency and long lifespan.
  • Equipped with a high-performance steam separator as standard, it provides continuous supply of high-quality dry steam even during rapid load changes.
  • When equipped with the artificial intelligence control device SE-Ai system, operation and maintenance become easier. (Optional)

Product standard specifications performance table

Item\Type Unit SEN-600 SEN-800 SEN-1000 SEN-1500 SEN-1700 SEN-2000 SEN-2500 SEN-3000
Rated evaporation amount kg/hr 600 800 1000 1500 2000 1700 2500 3000
Max. operating pressure Mpa 1 (10kg/㎠)
Heat output MW 0.45 0.6 0.75 1.12 1.27 1.5 1.87 2.25
kcal/h 386,220 514,960 643,700 965,550 1,094,290 1,287,400 1,609,250 1,9311,000
Thermal efficiency % 90
Heat transfer area 9.7 9.8 9.9 9.99 9.99 25.4 29.8 36
Quantity held 126 138 152 160 160 350 410 450
Product weight kg 1,320 1,460 1,780 1,880 2,030 3,100 3,600 4,100
Power used V 220V×3Ø / 380V×3Ø×4W
Electrical capacity Total power consumption kw 2.2 2.2 3.7 5.5 7.5 11 11 15
Burner motor kw 1.5 1.5 2.2 2.2 3.7 3.7 3.7 3.7
Water pump kw 0.4 0.4 0.4 0.4 0.75 0.75 0.75 0.75
Appearance Width (W) mm 1,360 1,360 1,420 1,420 1,450 2,320 2,320 2,530
Length (L) mm 1,810 1,810 1,920 1,960 2,350 3,200 3,350 3,620
Height (H) mm 2,250 2,340 2,430 2,480 2,520 3,150 3,250 3,320
Combustion method - Forced pressure ventilation
Control method - High-Low-Off (3 positions)
Fuel consumption Diesel kg/h 41.6 55.5 69.4 104.1 118 138.8 173.5 208.3
Boiler kerosene kg/h 41.3 55.1 68.9 103.4 117.2 137.9 172.4 206.9
City gas(13A) Nm³/h 43.3 57.7 72.2 108.3 122.8 144.4 180.6 216.7
LPG(Propane) Nm³/h 19.1 25.5 31.9 47.9 54.3 63.9 79.8 95.8
kg/h 38.7 51.6 67.5 96.8 109.7 129.1 161.3 193.6
LPG(Butane) Nm³/h 15.1 20.1 25.1 37.7 42.8 50.3 62.9 75.5
kg/h 39.2 52.3 65.4 98.1 111.2 130.8 163.5 196.2
Connection diameter Steam outlet A 40 50 50 65 65 80 80 100
Water inlet A 25 25 25 25 32 32 32 32
Drain A 25 40 40 40 40 40 40 40
Safety valve A 40(low) 25(low) 25(low) 32(low) 32(low) 32(low) 40(low) 40(low)
Fueling port A 20 20 20 20 20 25 25 25
Fuel gas inlet A 40 40 50 50 50 50 50 50
Flue Ømm 250 300 300 350 350 400 450 500

The above specification performance table is based on the following :

  • Steam pressure 0.7MPa[7kg/㎠], steam enthalpy 2.76MJ/kg[660.8kcal/kg], water temperature 293˚k(20˚C)
  • Low calorific value of fuel
    1. Diesel : 43.12MJ/kg (10,300kcal/kg)
    2. Boiler kerosene : 43.4MJ/kg (10,368kcal/kg)
    3. City gas(13A) : 41.45MJ/Nm3 (9,900kcal/Nm3)
  • This specification performance table may be changed without notice for quality improvement.
view table

Sekwang Boiler Co.,Ltd.Sekwang Boiler Co.,Ltd.