Product Introduction
WNS series oil & gas fired vacuum hot water boiler is a horizontal internal combustion wet-back three-pass fire tube vacuum phase-change boiler, fully packaged before delivery for convenient transportation and installation. A sealed vacuum negative pressure chamber is formed inside the boiler. Hot water is supplied by phase change heat transfer of heat medium water. It can burn natural gas, LPG, biogas, diesel, heavy oil and other fuels.
Equipped with built-in stainless steel heat exchangers, the boiler can supply hot water via multiple independent circuits. Widely used for heating, domestic hot water and industrial process hot water in hotels, hospitals, schools and commercial complexes.
Specification
| Item | W N S series | ||||||||||||
| Boiler body | Heating value | 0.35 | 0.48 | 0.6 | 0.7 | 1.05 | 1.4 | 1.75 | 2.1 | 2.8 | 4.2 | 7 | |
| 70/50-Y.Q | |||||||||||||
| ×10⁴ kcal/h | 30 | 40 | 50 | 60 | 90 | 120 | 150 | 180 | 240 | 360 | 600 | ||
| Rated outlet pressure | MPa | No pressure | |||||||||||
| Rated outlet temperature | ℃ | 70(△t20℃)60(△t10℃) | |||||||||||
| Return water temperature | ℃ | 50 | |||||||||||
| Calculate heat exchange area | m² | 83 | 11.1 | 13.8 | 16.5 | 24.8 | 33 | 42.5 | 51.1 | 70 | 105 | 175 | |
| Design thermal efficiency | % | Above 90-98(natural gas with condenser) | |||||||||||
| Net weight of boiler | t | 36 | 48.1 | 60.1 | 72 | 108 | 144 | 180 | 216 | 288.1 | 432.2 | 7220.3 | |
| Water Capacity of boiler | t | 76.5 | 102.1 | 127.6 | 153.1 | 229.6 | 306.1 | 382.7 | 459.2 | 612.2 | 918.4 | 1530.6 | |
| Burning method | Micro positive chamber combustion | ||||||||||||
| Usable fuel | Fully Automatic Dual-stage Fire, Proportional Adjustment | ||||||||||||
| Fuel consumption | Usable fuel | Natural gas/light oil/city gas | |||||||||||
| Light oil | kg/h | 29.7 | 39.6 | 49.5 | 59.4 | 89.2 | 118.9 | 148.6 | 178.3 | 237.8 | 356.6 | 594.4 | |
| LNG | Nm³/h | 36 | 48.1 | 60.1 | 72 | 108 | 144 | 180 | 216 | 288.1 | 432.2 | 7220.3 | |
| Urban coal gas | Nm³/h | 76.5 | 102.1 | 127.6 | 153.1 | 229.6 | 306.1 | 382.7 | 459.2 | 612.2 | 918.4 | 1530.6 | |
| Pressure of supplied gas | pa | 6000-8000 | 8000-20000 | ||||||||||
| Condenser | Type | Finned tube type | |||||||||||
| Model | LNQ035 | LNQ048 | LNQ.6 | LNQ0.7 | LNQL.05 | LNQ14 | LNQL75 | LNQ21 | LNQ28 | LNQ42 | LNQ7.0 | ||
| Product weight | kg | 112 | 135 | 155 | 174 | 250 | 292 | 341 | 406 | 494 | 702 | 1258 | |
| Link size | Water outlet | DN | 65 | 80 | 100 | 125 | 150 | 200 | 250 | ||||
| Water outlet | DN | 80 | 100 | 125 | 150 | 200 | 250 | 300 | |||||
| Water inlet | DN | 65 | 80 | 100 | 125 | 150 | 200 | 250 | |||||
| Water inlet | DN | 80 | 100 | 125 | 150 | 200 | 250 | 300 | |||||
| Drain valve | DN | 40 | 50 | 65 | |||||||||
| Transport dimensions | Length | mm | 2636 | 2681 | 2981 | 2990 | 3546 | 3601 | 4101 | 4185 | 4640 | 5621 | 6930 |
| Width | mm | 1440 | 1540 | 1540 | 1590 | 1690 | 1810 | 1890 | 2040 | 2190 | 2390 | 2960 | |
| Height | mm | 2000 | 2180 | 2180 | 2220 | 2350 | 2550 | 2660 | 2880 | 3050 | 3310 | 3965 | |
| Transport dimensions (Double exchange type) | Length | mm | 2626 | 2682 | 2964 | 2964 | 3494 | 3545 | 4071 | 4161 | 4590 | 5442 | 6715 |
| Width | mm | 1540 | 1640 | 1690 | 1740 | 1810 | 1910 | 1990 | 2140 | 2290 | 2490 | 3060 | |
| Height | mm | 2100 | 2280 | 2320 | 2370 | 2470 | 2650 | 2460 | 2980 | 3150 | 3420 | 4065 | |
| Size of smoke outlet | mm | 200X300 | 200X400 | 250X450 | 300X500 | 350X550 | 350X750 | 500X900 | |||||
| 1. Fuel consumption in the table are calculated based on the lower heating value: light oil 42,700 kJ/kg, heavy oil 40,350 kJ/kg, Natural Gas: 35,588 kJ/Nm³; Town Coal Gas: 16,750 kJ/Nm³ 2. All data and drawings above are for reference only and subject to change without prior notice. 3. Please confirm relevant data before prefabrication, embedding reservation and boiler room design. 4. A condensing heat exchanger is recommended for natural gas firing. 5. An energy saver is recommended when light oil is used as fuel. | |||||||||||||
Advantages
01
Vacuum Safety Design
Operates under vacuum negative pressure, with high safety and no explosion risk.
02
Scale-Free Durability
No scaling inside the boiler, long service life and stable performance.
03
Multi-Fuel Compatibility
Wide fuel adaptability, suitable for natural gas, LPG, diesel, biogas and other fuels.
04
Smart Automation
Fully automatic control, unattended operation with multiple safety protections.
05
Compact & Portable
Compact packaged structure, easy transportation, installation and maintenance.
06
Energy-Efficient & Eco-Friendly
High thermal efficiency, energy saving, low emission and environmental protection.
07
Multi-Circuit Supply
Can provide multiple circuits of hot water for heating and domestic use at the same time.
Packaging and Shipping
