FIELD: hearing air positively fed to burner devices from blast fan. SUBSTANCE: air preheater includes metal tube panels secured in tube sheets and located after economizer and system of flow-through tubes located under boiler and economizer and immersed in layer of temperature-resistance heat-conducting material. At one end, flow-through tubes are connected to burners and at other end they are connected to stack of metal tubes through heated air collecting chamber. EFFECT: enhanced reliability. 13 cl, 6 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| GAS PREHEATER | 1994 |
|
RU2125205C1 |
| BOILER PLANT | 1993 |
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| BOILER PLANT WITH A CYLINDRICAL BOILER AND A WATER-HEATER, A WATER-TUBE COUNTERCURRENT CYLINDRICAL BOILER WITH A CONVECTIVE BEAM, A RING-SHAPED SECTIONAL FINNED COLLECTOR | 2002 |
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| HOT-WATER BOILER | 1995 |
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| ECONOMIZER | 1994 |
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| BOILER PLANT | 1995 |
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| BOILER PLANT | 1993 |
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RU2056585C1 |
