Direct-flow Steam Water-tube Boiler
- A top-mounted large steam drum is independently set, which can not only make the water circulation more reliable, but also provide a larger steam space, so that the steam quality is better.
- The height of the boiler tube bundle and membrane wall is only 50% of that of the bulk boiler, which greatly reduces the vibration risk during operation.
- After full combustion, the flame goes from the furnace part to the convection part, economizer, condenser and directly to the chimney. The flue gas route has no turns, the overall resistance of the boiler is small, and there is no vibration risk.
- The boiler is manufactured and inspected in the factory, and is divided into three major parts: the furnace body, economizer and condenser. On site, it can be used only by connecting the pipes.

Project model
unit
NSZS80-1.25-Y(Q)
NSZS100-1.25-Yf(Q)
NSZS130-1.25-Y(Q)
NSZS150-1.25-Y(Q)
Boiler size
A
mm
24000
26500
28000
29000
B
mm
6400
7000
7500
8000
C
mm
8000
8480
8600
8600
rated capacity
t/h
80
100
130
150
Power the pump
kW
75
90
132
160
Wind turbine power
kW
2*110
2*132
2*180
2*220
bleed pressure
mbar
500
500
500
500
fuel consumption
diesel oil
kg/h
5096
6115.2
7949.7
9172.8
dead oil
kg/h
5298.2
6357.84
8265.2
9536.8
natural gas
Nm³/h
4185.7
5022.84
6530
7534.2
city gas
Nm³/h
109.40
131.28
1706.4
1969.2
liquefied petroleum gas
Nm³/h
1969.2
2363
3071.9
3544.5
Rated steam pressure
MPa
1.25
1.25
1.25
1.25
Rated steam temperature
℃
194
194
194
194
feed inlet -DN
mm
DN125
DN150
DN150
DN150
Main steam outlet-DN
mm
DN250*2
DN250*3
DN250*3
DN250*4
Deputy steam outlet-DN
mm
DN40
DN40
DN40
DN40
Manual discharge port-DN
mm
DN50
DN50
DN50
DN50
Continuous discharge outlet-DN
mm
DN40
DN50
DN50
DN50
relief valve connection -DN
mm
DN200*2
DN250*2
DN250*3
DN250*3
common use
Power supply: 380V/50Hz ;thermal efficiency: ≥99% ;
water supply temperature: 20/104℃ ;exhaust temperature: ≤70℃
★ Micro positive pressure chamber combustion mode, automatic proportional adjustment
★ Fuel consumption is the value after the installation of the condenser;
★ Fuel calorific value: natural gas 9140kcal/Nm3, city gas 4500kcal/Nm3, liquefied petroleum gas 24998kcal/Nm³
★ Due to continuous technical improvement, if the change is not notified, please contact Meneng Boiler Co., LTD for detailed data.














