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Our Products Top > HDN-Type: LARGE SIZED PACKAGE BOILER |
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HDN-Type: LARGE SIZED PACKAGE BOILER
POWER GENERATION BOILER OPERATING FOR GENERAL INDUSTRIAL WORLD
This HDN Type boiler can reduce a fuel cost by burning the low quality oil as fuel while performing a high efficiency. This always enables a project to incorporate the low running cost plan. These type of boilers are now active in operating in the general industrial world.
FEATURE OF PRODUCTS
- ･HIGH EFFICIENCY
- The spacious combustion chamber and air heater duct can contribute to a stable high thermal efficiency (86 to 88%) by the automatic operation even under the wide range of boiler load.
- ･WIDE COMBUSTION RANGE
- Employing a steam atomizing burner, the boiler can continuously operate long hours with 10 to 100% automatic control.
- ･COMPLETE SET OF SAFE AUTOMATIC CONTROL AND SAFETY DEVICE
- The boiler has Automatic Control Device which can follow the sudden change of boiler load and the system that fuel flow calves are automatically shut down in case of flame failure, low water level, steam pressure drop, tripping of forced draft fan, low oil temperature and so on.
- ･SIMPLE HANDLING
- The Automatic Control save labor cost with Electric Proportional Control System. Its auxiliary equipment are centralized in the form of compact at the boiler front.
- ･SMALLER INSTALLATION AREA
- The boiler and its auxiliary equipment are all designed in the form of compact and as such smaller be the boiler square and also light weight by tangential skin casing makes unnecessary strong foundation.
- ･DURABILITY
- The boiler has been reasonably designed to have an enough strength and its proper has a tangential skin casing of simple construction without any place vulnerable to corrosion and to be likely to cause burns, thus can elongate durability.
- ･EASY CLEANING IN AND OUTSIDES
- Tube cleaner can completely clean the tube inside while the outside can be cleaned by operating the soot blower during boiler operation and when the boiler is out of operation, water cleaning can be carried out, making possible the long and high efficiency operation.
- ･AIR PREHEATER
- Air preheating system installed in this boiler designed for both air preheating and noise proof can raise not only an efficiency but also prevent noise.
- ･LOW MAINTENANCE FEE
- Burning low quality oil with high efficiency can reduce fuel cost and, what is better, mechanical cleaning of the tubes is possible, thus making maintenance fee much less and unit price of steam also cheaper.
- ･APPLICABILITY TO A VARIETY OF LIQUID OR GASEOUS FUEL
- At the request of customers, it is feasible to use a variety of Liquid fuel (A 〜Ｃ heavy oil, light oil, waste oil etc.), Gaseous fuel(LNG, LPG, City gas, H2 Gas, Biogas, Waste gas from a Plant etc.) fuel with mono or mixed-fuel burning system.
SPECIFICATION
| TYPE | HDN-15 | HDN-20 | HDN-25 | HDN-30 | HDN-40 | HDN-50 | HDN-60 | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Heating Surface | m³ | 208 | 279 | 339 | 419 | 563 | 646 | 815 | ||
| Evaporated Output | M.C.R. | kg/h | 15,000 | 20,000 | 25,000 | 30,000 | 40,000 | 50,000 | 60,000 | |
| Normal Operation | kg/h | 12,000 | 16,000 | 20,000 | 24,000 | 32,000 | 40,000 | 50,000 | ||
| Heavy Oil Consumption (M.C.R.) | kg/h | 1,120 | 1,494 | 1,867.5 | 2,241 | 2,988 | 3,735 | 4,482 | ||
| Diameter of main steam stop valve | mmφ | 200 | 250 | 250 | 250 | 300 | 250x2 | 250x2 | ||
| Diameter of feed water stop valve | mmφ | 65 | 65 | 80 | 80 | 80 | 100 | 125 | ||
| Diameter of blow off valve | mmφ | 40 | 40 | 40 | 40 | 50 | 50 | 50 | ||
| Dimension for Installation | Boiler Max. Height | mm(H) | 4,868 | 5,347 | 5,497 | 5,847 | 6,547 | 6,297 | 7,697 | |
| Upper drum center level | mm(H') | 3,500 | 3,750 | 3,900 | 4,250 | 4,800 | 4,700 | 6,100 | ||
| Boiler Front Width | mm(W) | 3,165 | 3,690 | 3,790 | 4,120 | 4,730 | 4,890 | 5,760 | ||
| Boiler length | mm(L) | 4,313 | 4,541 | 4,769 | 4,921 | 6,350 | 7,050 | 8,200 | ||
| Boiler Net Weight | kg | 24,500 | 28,500 | 31,000 | 36,600 | 67,000 | 103,000 | 162,000 | ||
| Boiler Weight with Full Water | kg | 32,670 | 37,640 | 41,030 | 47,730 | 82,000 | 121,000 | 195,000 | ||
- 1. The above-mentioned diameter of each valves are calculated based on Normal Working Pressure: 0.59~0.98 MPa.
- 2. Maximum working pressure of standard products is 0.98MPa, but at customer’s request, production can extend to 9.8MPa.
- 3. Fuel consumption listed above is calculated based on low calorific value: 40.8MJ/kg and feed water temperature: 20℃.
- 4. Heavy oil or city gas can be used as fuel.
- 5. The above size is subject to change more or less as it is approximate.
- 6. Combustion air rate shall be below 1.2.
- 7. If you need further requests, please contact us.
CONSTRUCTION
HDN-Type Boiler consists of boiler proper constructed by two large diameter drums connected by vertical tubes and on its side the spacious combustion chamber with totally radiation tangential skin casing construction. The side and rear walls have fin tubes totally welded to ideally construct a pressurized combustion preventing the gas leakage.
Convection part is made in crossflow staggered arrangement which can soundly absorb heat, and cleaning can be done with soot blower even during operation, while tube cleaning can be done during the rest.
Utilizing the gas duct, heat can be recovered and air it preheated for combustion.
Boiler outer surface is forcefully cooled by air running parallel between gas duct and outer wall.
The down comer tubes at the lowest temperature portions are separated from the up comer tube wall by installing baffle plates inside the drum without any obstacle to boiler water circulation.
All auxiliary equipment except heavy oil service tank, feed water tank and softner are compactly arranged at the boiler front.
- NHA-Type: Small and medium (capacity) sized package boilers
- HDN-Type: Large (capacity) sized package boilers
- YSG-Type: Low NOx gas firing boilers
