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This is a gas/oil-fired steam & hot water boiler. My main structure is the below:
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Boiler shell | Corrugated furnace | Threaded firetube |
 |  |  |
Intergrated burner | Insulation material | Stainless steel coat |
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Instrument valves | Double insulation job | Debugging job |
Boiler features
1.Long working life
3-pass and wet-back are designed to avoid the damage of back tube sheet from the high temperature smoke.
2.Compact desegn
Threaded firetube and corrugated furnace are used to increase the heating area. That allows over 30% of the energy to be absorbed in the furnace. This means a shorter boiler overall. Definitely, it can save your boiler room construction costs.
3.Ease of maintenance
Everything is up front,adjustable and accessible.
4.New type economizer
It is made by finned steel tubes. The material is ND steel (09CrCuSb), which is acid-resistant and corrosion-resistant at low temperature. It is smaller but the heat exchanging area is bigger than normal. By calculation, It can save around 5% fuel.
5.Low emissions
Lowering emissions in the ZOZEN-WNS series of boiler involves two key factors:
(1) advanced burner solution;
(2) the proper sizing of furnace to minimize nitrogen oxides and other contaminants from forming during the combustion process.
6.High Efficiency
Attaining high fuel to steam/water efficiency in a boiler today requires a highly engineered package from a single source who is providing integrated burner, controls and the heat exchanging vessel. Zozen WNS series of boilers is the premier package in the domestic Industry guaranteeing the highest efficiencies.
7.Safety control system
We design the safety interlock system with multiple protection and alarm functions
- Protection program of automatic ignition
- Locking and protection program of operation
- Protection program of extinction
- Protection program of completion
- Protection program of water pumps (pressure loss)
- Protection program of ignition failure
- Protection program of combustion engine malfunction
- Protection program of combustion engine flameout
- Sound-light alarm of high pressure
- Sound-light alarm of high limit water level
- Sound-light alarm of low limit water level
- Sound-light alarm of super-high temperature of hot water
Working principle
Oversea market
Workshop
Boiler specification
| Model | Steam Capacity | Steam Pressure | Steam Temperature | Shipping Weight | Shipping Dimension | Heat Efficiency |
| WNS1-0.7-Y(Q) | 1 t/h | 0.7 Mpa | 170 ºC | 4.0 t | 3.6x2.0x2.0 (m) | >90% |
| WNS1-1.0-Y(Q) | 1 t/h | 1.0 Mpa | 184 ºC | 4.0 t | 3.6x2.0x2.0 (m) | >90% |
| WNS1.5-1.0-Y(Q) | 1.5 t/h | 1.0 Mpa | 184 ºC | 4.5 t | 3.8x2.0x2.0 (m) | >90% |
| WNS1.5-1.25-Y(Q) | 1.5 t/h | 1.25 Mpa | 194 ºC | 4.5 t | 3.8x2.0x2.0 (m) | >90% |
| WNS2-1.0-Y(Q) | 2 t/h | 1.0 Mpa | 184 ºC | 8.5 t | 4.86x2.5x2.46 (m) | >90.2% |
| WNS2-1.25-Y(Q) | 2 t/h | 1.25 Mpa | 194 ºC | 8.5 t | 4.86x2.5x2.46 (m) | >90.2% |
| WNS3-1.0-Y(Q) | 3 t/h | 1.0 Mpa | 184 ºC | 8.9 t | 5.3x2.5x2.5 (m) | >90.5% |
| WNS3-1.25-Y(Q) | 3 t/h | 1.25 Mpa | 194 ºC | 8.9 t | 5.3x2.5x2.5 (m) | >90.5% |
| WNS4-1.6-Y(Q) | 4 t/h | 1.25 Mpa | 194 ºC | 13.3 t | 5.84x2.85x2.8 (m) | >91.3% |
| WNS4-1.6-Y(Q) | 4 t/h | 1.6 Mpa | 204 ºC | 13.3 t | 5.84x2.85x2.8 (m) | >91.3% |
| WNS5-125-Y(Q) | 5 t/h | 1.25 Mpa | 194 ºC | 14.3 t | 6.3x2.9x2.8 (m) | >91.3% |
| WNS5-1.6-Y(Q) | 5 t/h | 1.6 Mpa | 204 ºC | 14.3 t | 6.3x2.9x2.8 (m) | >91.3% |
| WNS6-1.25-Y(Q) | 6 t/h | 1.25 Mpa | 194 ºC | 19.5 t | 7.25x3.1x3.15 (m) | >91.2% |
| WNS6-1.6-Y(Q) | 6 t/h | 1.6 Mpa | 204ºC | 19.5 t | 7.25x3.1x3.15 (m) | >91.2% |
| WNS8-1.25-Y(Q) | 8 t/h | 1.25 Mpa | 194 ºC | 22.6 t | 7.45x3.26x3.2 (m) | >91.6% |
| WNS8-1.6-Y(Q) | 8 t/h | 1.6 Mpa | 204 ºC | 22.6 t | 7.45x3.26x3.2 (m) | >91.6% |
| WNS10-1.25-Y(Q) | 10 t/h | 1.25 Mpa | 194 ºC | 25.8 t | 8.73x3.26x3.2 (m) | >91.8% |
| WNS10-1.6-Y(Q) | 10 t/h | 1.6 Mpa | 204 ºC | 25.8 t | 8.73x3.26x3.2 (m) | >91.8% |
| WNS15-1.25-Y(Q) | 15 t/h | 1.25 Mpa | 194 ºC | 34.7 t | 8.73x3.74x3.51 (m) | >91.9% |
| WNS15-1.6-Y(Q) | 15 t/h | 1.6 Mpa | 204 ºC | 34.7 t | 8.73x3.74x3.51 (m) | >91.9% |
| WNS20-1.25-Y(Q) | 20 t/h | 1.25 Mpa | 194 ºC | 46 t | 10.2x3.6x4.02 (m) | >92% |
| WNS20-1.6-Y(Q) | 20 t/h | 1.6 Mpa | 204 ºC | 46 t | 10.2x3.6x4.02 (m) | >92% |
Gas steam boiler quality comparison_0.pdf
Total Integration goes far beyond boilers.
Efficiency and quality don't end with our boilers. ZOZEN complete integration produces the most efficient boiler solutions in the world. Completely designed, engineered, manufactured, integrated, and serviced by our team, our systems don't have a single outsourced component to jeopardize compatibility or performance. If you are looking for the best-quality boiler systems with the lowest emissions and highest efficiencies, you are looking for Zozen.
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