QXS-type Hot Water Water-tube Boiler
- The boiler has a direct-through structure, ensuring smooth flue gas flow without vibration.
- With two completely independent furnace chambers, the flames and airflow do not interfere with each other, enabling stable combustion and achieving a combustion adjustment ratio of 1:20.
- The volumetric condenser features a large water flow cross-section, with negligible water resistance. The vertical structural design utilizes the density difference of water: low-temperature water enters from the bottom of the condenser, and after being heated, the reduced density causes hot water to rise, forming counter current heat exchange with flue gas for high-efficiency heat transfer.
- The split integrated design not only ensures product quality but also saves on-site installation time and costs.
- The overall height of the boiler is less than 4.5 meters, minimizing vibration risks.
- Compared to water-tube boilers of the same tonnage, this boiler has a smaller footprint and volume.
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Project model
unit
QXS58-1.6 /130/70-Y(Q)
QXS70-1.6 /130/70-Y(Q)
QXS116-1.6 /130/70-Y(Q)
QXS140-1.6 /130/70-Y(Q)
QXS210-1.6 /130/70-Y(Q)
Boiler size
A
mm
19000
20000
21620
23000
24000
B
mm
5680
8060
9600
10600
15000
C
mm
6500
6500
8200
8200
8200
Rated thermal power
MW
58
70
116
140
210
Rated outlet pressure
MPa
1.6
1.6
1.6
1.6
1.6
bleed pressure
natural gas
mbar
600
700
700
800
800
city gas
mbar
600
700
700
800
800
liquefied petroleum gas
mbar
600
700
700
800
800
fuel consumption
diesel oil
kg/h
5015
6053
10031
12106
18160
dead oil
kg/h
5236.5
6319.9
10437
12639.8
18960
natural gas
Nm³/h
5624
6788
11249
13577
20365
city gas
Nm³/h
11424
13788
22849
27576
41365
liquefied petroleum gas
Nm³/h
4955.5
5980.8
9911
11961.6
17940
flange -PN
MPa
2.5
2.5
2.5
2.5
2.5
Inlet/outlet-DN
mm
400
400
600
600
800
Manual discharge port-DN
mm
50*5
50*5
50*5
50*5
50*5
Safety valve outlet-DN
mm
200*2
200*2
200*4
250*2+200*2
250*2+200*2
Size of vent
mm
Φ2000
Φ2400
Φ2000*2
Φ2400*2
Φ2400*2
common use
Power supply: 380V/50Hz
★ Micro positive pressure combustion mode, full proportion automatic adjustment
Thermal efficiency: ≥97%
★ Fuel consumption is the value after the installation of the condenser;
Water temperature difference: 70℃
★ Combustion calorific value: natural gas 9140kcal/kWh; city gas 4500kcal/Nm3; LPG 24998kcal/Nm3;
Water temperature: 130℃
★ Due to continuous improvement of technology, any change will not be notified. Please contact the headquarters for detailed parameters.