The Fangkuai water tube steam boiler series features a distinct dual-drum vertical "D" configuration. This system operates by circulating water, steam, or steam-water mixtures through internal tubing while directing combustion flames and flue gases along the exterior surfaces. A key innovation lies in its helical water tube arrangement, which creates a reduced flow area within the tubes compared to the external pathways. This geometry accelerates steam-water velocity, enabling rapid displacement of generated steam from heated surfaces and enhancing thermal energy transfer to the boiler water. Beyond its high-velocity steam delivery, the series incorporates an optimized hydraulic circulation network that maximizes evaporation rates. Notably, these units demonstrate exceptional responsiveness to fluctuating operational demands while maintaining stable performance under elevated pressure conditions. Combining superior heat transfer capabilities with robust pressure tolerance, the Fangkuai water tube design delivers exceptional thermal efficiency and operational reliability for industrial steam applications.
Fangkuai water tube steam boiler series adopts a double-cylinder vertical "D" type layout structure. Water, steam or a mixture of steam and water flows inside the tube, and flames and smoke burn and flow outside the tube. There is a curved water pipe inside the boiler. The cross-section inside the tube is smaller than the cross-section outside the tube.
The steam flow rate is greatly increased, and the steam generated on the heating surface is immediately washed away, increasing the heat absorption of the boiler water. It also has extremely fast steam flow rates and an excellent water circulation system. It has high evaporation efficiency and strong adaptability to load changes. More suitable for environments with higher work pressure. The boiler has high heat absorption rate and high thermal efficiency.
The boiler adopts the design concept of flue gas cascade waste heat recovery. There is a flue gas condenser at the end of the boiler body, which reduces the flue gas temperature (<100°C), improves the boiler efficiency, and also reduces harmful components in the flue gas;
An air heater is used to preheat the combustion air inlet to provide hot air for combustion, which fundamentally solves the instability caused by condensation in the combustion system, increases the temperature of the combustion air above the dew point, and improves combustion efficiency.
Learn more
The complete set of equipment consists of the main body, economizer, condenser, burner, control system, valves and instruments to ensure the best operating condition of the boiler.
There are a large number of heat transfer pipes in the furnace body, with a large heat transfer area and high thermal efficiency, thus saving a lot of fuel costs.
More than 95% of automated welding equipment is used, and each boiler undergoes flaw detection before leaving the factory to ensure a 100% pass rate.
Use world-renowned brands of burners, gas valve groups and other auxiliary machinery and components to ensure optimal fuel combustion.
Boilers have low requirements on fuel equipment and combustion chambers, can be freely designed according to needs, and have relatively complete combustion.
The furnace is placed outside the cylinder, and the volume of the furnace can be large or small to meet the needs of combustion and large evaporation.
The tube containing water vapor is used as the heating surface, so the drum is not directly heated, and the heat transfer and safety performance are significantly improved.
Using ND steel material that is more resistant to acid and hydrogen ion corrosion, the service life of the boiler can be extended to 20 years.
Type | Rated evaporation capacity (t/h) | Rated steam pressure (MPa) | Rated thermal efficiency | Power supply (V/Hz) | Product size L×W×H(mm) | Weight (t) |
---|---|---|---|---|---|---|
SZS10-1.6-Y(Q) | 10 | ≤2.5 | 100-104% | 380/50 | 9560 * 7460 * 4230 | 32 |
SZS15-1.6-Y(Q) | 15 | ≤2.5 | 100-104% | 380/50 | 10250 * 7500 * 4250 | 42 |
SZS20-1.6-Y(Q) | 20 | ≤2.5 | 100-104% | 380/50 | 10260 * 8500 * 4460 | 52 |
SZS25-1.6-Y(Q) | 25 | ≤2.5 | 100-104% | 380/50 | 10280 * 8900 * 4760 | 54 |
SZS30-1.6-Y(Q) | 30 | ≤2.5 | 100-104% | 380/50 | 13110 * 9150 * 4780 | 64 |
SZS40-1.6-Y(Q) | 40 | ≤2.5 | 100-104% | 380/50 | 13700 * 9250 * 4800 | 76 |
SZS50-1.6-Y(Q) | 50 | ≤2.5 | 100-104% | 380/50 | 14840 * 9360 * 4830 | 100 |
SZS10-1.6/350-Y(Q) | 10 | ≤2.5 | 100-104% | 380/50 | 9960 * 7470 * 4430 | 31 |
SZS15-1.6/350-Y(Q) | 15 | ≤2.5 | 100-104% | 380/50 | 11760 * 8400 * 4880 | 49 |
SZS20-1.6/350-Y(Q) | 20 | ≤2.5 | 100-104% | 380/50 | 12460 * 8670 * 4980 | 65 |
SZS25-1.6/350-Y(Q) | 25 | ≤2.5 | 100-104% | 380/50 | 12800 * 9210 * 5050 | 70 |
SZS30-1.6/350-Y(Q) | 30 | ≤2.5 | 100-104% | 380/50 | 13710 * 9350 * 5120 | 75 |
SZS35-1.6/350-Y(Q) | 35 | ≤2.5 | 100-104% | 380/50 | 14610 * 9420 * 5520 | 80 |
SZS40-1.6/350-Y(Q) | 40 | ≤2.5 | 100-104% | 380/50 | 16250 * 9500 * 5650 | 86 |
Apply for 1 To 1 online communication
Fangkuai Service System:
365Day
Free repair
24Hours
Hotline on standby
365Day
All year round
Selection guide
Selection guide
Selection guide
Selection guide
We provide you with a free full lifecycle system solution