1. Reasonable design: Horizontal internal combustion three-return full wet back structure, water-in-fire design, wavy furnace gallbladder, with good expansibility.It has sufficient heating area and reasonable structure layout.
2. High efficiency and energy saving: corrugated furnace gallbladder, threaded flue gas pipe, large space combustion chamber with reasonable structure layout, in order to achieve low energy consumption.With high efficiency of heat transfer, the thermal efficiency of the boiler can reach more than 96%.
3. Production specification: Each component of the boiler is manufactured in accordance with national and international standards (ISO).
4. Large water volume: Boiler has large water volume, handling fluctuation of load and variation of peak value, so as to make the operation condition stable.
5. Longevity and durability: Professional design of boilers and strict quality control are the guarantee of the quality of every Yuji boilers.The service life of the boilers used is more than 20 years.
6. Easy maintenance: front and rear movable smoke box doors, rear inspection holes can enter the furnace for inspection and cleaning. Opening Manhole in Ontology. Head holes and hand holes, structural design fully considers future maintenance.
Technical Parameters
Main Technical Parameters of WNS Series Pressure Hot Water Boilers
| Item Type | WNS0.35 | WNS0.7 | WNS1.4 | WNS2.8 | WNS4.2 | WNS7 | WNS105 | WNS14 |
| Rated Heat Efficiency | MW | 0.35 | 0.7 | 1.4 | | 4.2 | 7 | 10.5 | 14 |
| Rated Working Pressure | MPa | 0.7 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.25 |
| Rated Effluent temperature | °C | 95 | 95 | 115 | 115 | 115 | 115 | 115 | 115 |
| Return water temperature | °C | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 |
| Efficiency | / | >96% |
| Design Fuel | / | Natural gas, liquid gas, city gas, light oil |
| Fuel Theoretical consumption | gas | NM3/h | 37 | 74 | 146 | 288 | 434 | 729 | 1080 | 1450 |
| Liquid gas | Kg/h | 29 | 58 | 116 | 232 | 350 | 586 | 869 | 1149 |
| City Gas | NM3/h | 79 | 157 | 305 | 603 | 943 | 1572 | 2347 | 3141 |
| Light Oil | Kg/h | 31 | 62 | 119 | 237 | 357 | 602 | 903 | 1203 |
| Natural gas | mbar | 70-100 | 100-150 | 100-150 | 150-200 | 150-200 | 150-200 | 150-300 | 150-300 |
| City gas | mbar | 100200 | 100-200 | 100-200 | 150-200 | 150-200 | 150-200 | 150-300 | 150300 |
| Rated water circulation | M³/h | 12 | 24 | 26.67 | 53.33 | 80 | 133.33 | 200 | 266.67 |
| water capacity | M3 | 1.1 | 5.2 | 6.26 | 7.19 | 9 | 14.1 | 26.9 | 35.2 |
Note: The fuel consumption in the table is calculated by low calorific value of light oil 42915KJ/Kg (10260Kcal/Kg), low calorific value of natural gas 35588KJ/NM3 (8500Kcal/NM3), low calorific value of liquefied gas 45998KJ/Kg (11000Kcal/Kg), low calorific value of urban gas 16750K/NM3 (4000Kcal/NM3).
Configuration and Interface Dimensions of WNS Series Pressure Hot Water Boilers
| Item | type | WNS0.35 | WNS0.7 | WNS1.4 | WNS2.8 | WNS4.2 | WNS7 | WNS105 | WNS14 |
| Host transport dimensions (length * width * height) | / | mm | 2949*14 54*1707 | 3198*18 80*2166 | 4131*22 47*2422 | 4928*22 50*2600 | 5401*24 06*2650 | 6280*26 40*3176 | 7804*33 93*3540 | 9120*44 00*4100 |
| Host Weight | / | t | 2.8 | 5 | 8 | 10.5 | 17.8 | 19 | 35 | 48 |
| Outlet Valve Diameter | DN | mm | 50 | 65 | 100 | 125 | 125 | 200 | 200 | 200 |
| Backwater Valve Diameter | DN | mm | 50 | 65 | 100 | 125 | 125 | 200 | 200 | 200 |
| Atmospheric Connecting Pipe Diameter | DN | mm | 40 | 50 | 2,40 | 2*50 | 2,65 | 2,80 | 2*100 | 2*150 |
| Drainage Valve Diameter | DN | mm | 40 | 40 | 2*40 | 2*40 | 2,40 | 2*40 | 2*50 | 2*50 |
| Chimney diameter | DN | mm | 250 | 280 | 350 | 400 | 600 | 750 | 1000 | 1100 |
Note: Due to the continuous updating of products, the company reserves the right to modify the data in the above two tables.
