Two-way steel hot water boiler is designed for heat-transfer medium production in heating systems and hot-water supply for industrial, community and residential buildings as well as for the production facilities.
Boiler advantages.
- High efficiency – to 93,5% at low exhaust emission
- Boiler operation at furnace negative pressure as well as under supercharge
- Factory assembled to installation
- Reduced requirement to inlet water temperature
- Minimal hydraulic resistance
- Use of high-efficiency automated burners by Russian and foreign manufactures
- Low detention lag
| Parameter | KSV-0,1 | KSV-02 | KSV-0,3 | KSV-0,4 | KSV-0,5 |
| Heat efficiency, MW | 0,1 | 0,2 | 0,25 | 0,4 | 0,5 |
| Fuel | gas, liquid fuel | ||||
| Efficiency, % | 92 | 92 | 92 | 93 | 93 |
| Inlet/outlet temperature, ºC | 115/70 | 115/70 | 115/70 | 115/70 | 115/70 |
| Boiler operating pressure, MPa | 0,5 | 0,5 | 0,5 | 0,5 | 0,5 |
| Hydraulic resistance, MPa, max | 0,004 | 0,007 | 0,01 | 0,015 | 0,019 |
| Aerodynamic resistance, Pa | 110 | 205 | 255 | 340 | 410 |
| Negative pressure after the boiler, Pa, max | 30 | 30 | 30 | 30 | 30 |
| α coefficient | 1.05 | 1.05 | 1.05 | 1.05 | 1.05 |
| Pressure/negative pressure inside the furnace, Pa | +350/-30 | +350/-30 | +350/-30 | +350/-30 | +350/-30 |
|
Heating surface, m2
|
3,31 | 5,66 | 6,72 | 10,76 | 12,12 |
|
Furnace space volume, m3
|
0,11 | 0,137 | 0,146 | 0,237 | 0,39 |
| Waste gas volume, m3/h | 145 | 295 | 365 | 600 | 725 |
| Furnace space diameter/length | 384/660 | 464/965 | 464/1165 | 524/1493 | 524/1693 |
| Waste gas temperature, ºC | 160 | 160 | 160 | 155 | 150 |
|
CO/NOx content, mg/m3
|
60/80 | 60/80 | 60/80 | 55/80 | 55/80 |
| External surface heat generation, kW | 1,2 | 2,42 | 2,68 | 3,95 | 4,97 |
| Overall dimensions, m: length | 1,3 | 1,54 | 1,74 | 2,34 | 2,54 |
| width | 0,76 | 0,8 | 0,8 | 1,0 | 1,0 |
| height | 1,1 | 1,16 | 1,16 | 1,33 | 1,33 |
| Weight, kg | 270 | 430 | 490 | 1000 | 1100 |
Boiler structure.
The boiler consists of a welded body, front cover, back cover with smoke offtake, heat insulation, face veneer, supports.
Cylindrical boiler body is made of steel sheet and includes the combustion chamber – “floating” fire tube with oval head, front and back tube sheets, convection part, front backfire chamber, supports.
Reversing type furnace is welded into the front tube sheet. It provides axial thermal stress self-compensation. Convection pass is formed by tubes welded into tube sheets. There are turbulators inside the pipes for effective convection part heat removal. Heat transfer medium inlet and outlet elbows and handholes are on the body ring. Heat transfer medium discharge elbow is welded into the bottom part of the body ring. Supports are welded to the bottom part of the body. There is a smoke gas backfire chamber between the tube sheet and front cover. Flange for the burner mounting is welded to the front cover. Back cover has a smoke gas offtake and stack connection. Boiler body is covered with heat insulating blankets, thickness 100mm, and shell made of zinc-coated sheet with decorative coating.
Boiler operation.
Smoke gas movement:
Combustion chamber is blind with turning flare. Smoke gases are formed inside the furnace while fuel burning. They turn back 180° at the head, come in a circumferential direction to the boiler front and go to the convection part fire tubes through the backfire chamber. After exchanging heat with the heat carrier smoke case moves through the smoke offtake to the stack.
Heat transfer medium movement:
Heat transfer medium (treated water) is charged to the boiler through the inlet elbow and shared inside the body. Heat transfer medium makes forced longitudinal motions and is heated by natural circulation inside the body. Heat transfer medium discharged from the boiler through the outlet charging elbow.
Boiler complete:
Boiler is supplied in a block. Upon the customer request the boiler is equipped with automated block furnace regulating the boiler heat efficiency by steps, smoothly rated 40-110%, locking safety fittings.
