Technical Specifications
These are water-tube boilers with membrane walls, an overpressure furnace and natural circulation for the combustion of liquid and gaseous fuels. The pressure part is formed by steam and sludge cylinders, enclosed by dished heads, laid in horizontal position, connected with the membrane walls and the tube convection bundle. The disk heads are fitted with holes for the boiler pressure system control. The burner is fixed to a burner plate in the front membrane wall of the boiler. The boiler includes an economiser designed for natural gas or LO combustion. The economiser is supplied in blocks according to the boiler efficiency required, differing according to the type of fuel employed. For boilers burning natural gas, economisers from ribbed tubes are applied, whereas for those burning liquid fuels economisers from bare tubes are used. The boiler equipment includes a superheater with the superheated steam output temperature range specified by the client.The boiler is fitted with all the fittings and gauges and thermometers. The supplied set also includes a service platform. The boiler and economiser are fitted with insulation covered by sheeting. The boiler manufacturing, design and equipment comply with CSN 07 0240.
Boiler Modulation
The boiler can also be supplied in a hot-water modification. The boiler is ready for the installation of GESTRA equipment for steam-boiler plants operating without constant supervision (supervision intervals every 2 - 24 - 72 hours according to TRD 602 or TRD 604).
Technical Parameters
| Parameters | Units | KU-V 8000 | KU-V 12000 | KU-V 16000 | KU-V 20000 | KU-V 25000 |
| Rated steam output | kg/hr | 8000 | 12000 | 16000 | 20000 | 25000 |
| Rated thermal capacity | kW | 6216 | 9324 | 12432 | 15540 | 19425 |
| Construction overpressure | MPa | 1,6 / 2,5 / 3,8 | ||||
| Temperature of superheated steam* | °C | do 450 | ||||
| Minimum temperature of feed water | °C | 105 | ||||
| Nominal temperature of combustion air | °C | 20 | ||||
| Efficiency at rated power: - Natural gas - LO |
% |
94 - 94,5 92 - 93 |
||||
| Amount of fuel: Natural gas LO |
Nm3/h kg/hr |
665 612 |
997 918 |
1330 1224 |
1662 1530 |
2077 1913 |
| Max. of air for combustion for lambda - 1,1 ** | Nm3/h | 7261 | 10891 | 14522 | 18522 | 22691 |
| Amount of flue gases - output max** | Nm3/h | 7932 | 11898 | 15864 | 19830 | 24788 |
| Boiler resistance at the flue gas side | Pa | 2000 - 3500 | ||||
| Noise level | dB | max.80 | ||||
| Flue gas temp. at the boiler output | °C | 120 - 180 | ||||
| Emissions*** | ||||||
| Natural gas - standard / low emission | mg/Nm3 | NOx - 160, CO - 50 / NOx - 100, CO - 50 | ||||
| LO | mg/Nm3 | NOx - 450, CO - 175, SO 2 - 1000, solid substances - 100, smoke rate < 2 | ||||
| Boiler weight | ||||||
| Transport weight (Applies for design pressure of 1,4 MPa) |
kg | 20000 | 23000 | 28000 | 30000 | 32000 |
| Technical changes are reserved | ||||||
* The nominal temperatureof superheated steam can be changed, depending on the client's request and the burned fuel.
** The values relate to the maximum boiler output at the steam pressure of 2.5 MPa, superheated steam temperature of 400°C and efficiency of 92%.
*** Emission relate to 3% of O2 in dry combustion products at t = 0°C and barometric pressure.
The given emission levels may be mainained only provided that the liquid fuel contains (except for values according to CSN 656506) maximally: S < 5 000 mg/kg, N < 1 000 mg/kg, asphaltenes < 3 %.
Universal Steam Water-Tube Boiler KU-V
| PROPORTIONS (mm) | ||||||
| BOILER | A | B | C | D | E | |
| KUV 8000 | 4800 | 4340 | 3500 | 3100 | 3980 | |
| KUV 12000 | 5190 | 4730 | 3720 | 3375 | 3980 | |
| KUV 16000 | 5990 | 5530 | 3720 | 3375 | 3980 | |
| KUV 20000 | 8500 | 8040 | 4040 | 3695 | 3980 | |
| KUV 25000 | 8810 | 8350 | 4040 | 3695 | 3980 | |