Block-type gas boiler houses
for heat supply of buildings and structures
In KM-2 type block-modular gas boiler houses, the heat-generating equipment consists of Kolvi steel fire-tube hot-water boilers fitted with fan burners, in which combustion air is supplied under forced draft.
These boiler houses are used for the heat supply of buildings whose specifications require maintaining a heating system temperature schedule of 90/70 °C or higher, with high coolant pressure (above 0.3 MPa at the boiler house inlet).
Block-type gas boiler houses belong to the category of high-capacity boiler installations (up to 69 MW) that cannot be manufactured as transportable containers due to their large overall dimensions.
Such boiler houses are manufactured in the form of technological blocks and assemblies that are transported and assembled at the installation site. Under factory conditions, the boiler house is divided into blocks in such a way that assembling the unified structure during installation work takes minimal time.
The main model range of Kolvi KM-2 block-modular boiler houses
- KM-2-12000-B/hs-Kolvi 6000T
- KM-2-15000-B/hs-Kolvi 5000T
- KM-2-12000-B/hs-Kolvi 6000T
- KM-2-24000-B/hs-Kolvi 8000T
- KM-2-28000-B/hs-Kolvi 14000T
- KM-2-34000-B/hs-Kolvi 17000T
- KM-2-42000-B/hs-Kolvi 14000T
- KM-2-51000-B/hs-Kolvi 17000T
- KM-2-69000-B/hs-Kolvi 23000T
Technical characteristics
| Parameter name | KOLVI 5000T | KOLVI 10 000T |
|---|---|---|
| Rated heat output, kW | 5000 | 10000 |
| Maximum operating pressure of the boiler, MPa (bar) | 1,0 (10) | 1,0 (10) |
| Fuel consumption | ||
| Natural gas, m³/h | 569,9 | 1139,8 |
| Diesel fuel, kg/h | 444,4 | 888,8 |
| Max. outlet boiler water temperature, °C | 115 | 115 |
| Minimum coolant pressure, bar | 1,5 | 1,5 |
| Water volume in the boiler, L | 8561 | 19733 |
| Efficiency, not less than, % | 92 | 92 |
| Boiler furnace resistance on the flue gas side, mbar | 8,2 | 8,7 |
| Hydraulic resistance of the water circuit, mbar | 180 | 180 |
| Connection pipe diameters | ||
| Supply/return DN/PN | 200 | 300 |
| Safety valve, DN/PN | 80 | 100 |
| Drain, DN/PN | 40 | 40 |
| Flue diameter, mm | 600 | 900 |
| Boiler dimensions excluding the burner | ||
| Length, not more than, mm | 5550 | 7320 |
| Width, not more than, mm | 2260 | 2910 |
| Height (including nozzle), not more than | 2660 | 3360 |
| Boiler weight, kg | 12750 | 24630 |
| Warranty period (from the date of commissioning), years | 2 | 2 |
| Emissions when burning natural gas, mg/m³ | ||
| CO, not more than | 30 | 30 |
| NOx, not more than | 130 | 130 |
