Air preheater of oscillatory flow type heat pipe, and energy saving drying technique of using the preheater
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHAN DONG TIAN LI DRYING EQUIP
- Publication Date
- 2007-02-21
- Estimated Expiration
- Not applicable · inactive patent
Smart Images
Figure 1 Figure 2
Abstract
Description
technical field
[0001] The invention relates to a drying system waste heat recovery technology, in particular to an oscillating flow heat pipe air preheater and an energy-saving drying process using the same. Background technique
[0002] At present, in the drying or calcination system, the tail gas temperature is generally higher than 100°C. The moisture contained in the tail gas exists in a gaseous state, part of which comes from the air used for drying, and most of the rest is the moisture removed from the wet material. If it is directly emptied, a large amount of sensible heat and latent heat of water vapor carried in the exhaust gas will be lost, which will cause a great waste of energy. Since the tail gas also contains a certain amount of dust and is in a gaseous state, it is very difficult to recover the waste heat of the dry tail gas.
[0003] Usually, in the heat exchanger for waste heat recovery, because the heat transfer coefficient of exhaust gas is low, the he...