A switchable regenerative high-efficiency heat exchanger

Abstract

The invention discloses a switchover heat accumulating type efficient heat exchanger. The inside part of a cylindrical shell (19) is divided into six equal axial cavities which are internally filled with heat accumulators by using partition boards; a first air pipe (10) and a second air pipe (21), which are communicated with the both ends of three axial cavities, are respectively arranged on the cylindrical shell (19); a third air pipe (9) and a fourth air pipe (20), which are communicated with the both ends of the other three axial cavities, are respectively arranged on the cylindrical shell (19); the first air pipe (10) and the third air pipe (9) are respectively alternatively communicated with a first air inlet pipe (8) and a first air discharging pipe (7) through a first gas reversing device; and the second air pipe (21) and the fourth air pipe (20) are respectively alternatively communicated with a second air inlet pipe (13) and a second air discharging pipe (12) through a second air reversing device. According to the switchover heat accumulating type efficient heat exchanger provided by the invention, a heat accumulation chamber is still, and the continuous hot air supply and the cooling smoke discharge of the nozzle can be realized.

Description

technical field [0001] The invention relates to a regenerative heat exchange device. Background technique [0002] The tension and shortage of energy in our country is a foregone conclusion, which has seriously affected the economic development. In the heat treatment of industrial plants, large quantities of exhaust gases with a high heat content are frequently produced, which offers an economic advantage for the recovery of the exhaust gases at the very times when energy consumption usually occurs. At present, the energy utilization rate of industrial furnaces in my country is generally low. Now there are some forging heating furnaces. Due to the characteristics of process operation, the exhaust gas temperature of most forging heating furnaces is higher than 1000 °C. [1] , because there is no high-efficiency waste heat recovery device suitable for long-term use, the heat loss of the exhaust gas is very large, so that the thermal efficiency of the furnace is only 5% to 10%,...

AI Technical Summary

Problems solved by technology

However, due to the fact that there is no heat exchange device that fully meets the requirements, none of them can be well realized.

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