FIELD: heat-power engineering; supply of preheated air to boiler units and industrial furnaces. SUBSTANCE: proposed air heater includes gas duct, hollow heat-exchange chamber with perforated sheets built in its guards which are closed with boxes provided with cold and heated air inlet and outlet branch pipes; holes of perforated sheets are connected with air nozzles and hot air traps which form passages for inlet of hot gases and outlet of cooled flue gases. EFFECT: simplified construction; enhanced reliability and efficiency due to increased rate of heat exchange; reduced usage of metals; reduced aerodynamic resistance. 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
RU2307288C1 |
| CONTACT JET HEATER | 2007 |
|
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| METHOD AND DEVICE FOR HEATING AIR BY FLUE GAS | 2003 |
|
RU2294487C2 |
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RU2331462C1 |
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|
RU2247281C1 |
| AIR HEATER | 0 |
|
SU805019A1 |
| POLYFUNCTIONAL GLASS-BLOCK AIR HEATER | 2011 |
|
RU2487301C2 |
