| abstract |
The invention discloses a heat exchange plate for a rotary air preheater, which comprises a hollow interlayer heat exchange plate, an electric heating wire and a thermocouple, wherein the hollow interlayer heat exchange plate is provided with a hollow interlayer; the heating wire is arranged in the interlayer of the hollow interlayer heat exchange plate, and the thermocouple is embedded in the thin steel plate. The invention also discloses an air preheater, and the heat exchange plate is arranged in the air preheater. The invention can solve the problem of ammonium bisulfate bonding in the air preheater, thereby achieving the aims of keeping the heat exchange efficiency of the air preheater and avoiding frequent flushing of the air preheater. |