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The so-called heat transfer enhancement or enhanced heat transfer is heat transfer through the various factors that affect the analysis and calculation, to take some technical measures to improve the heat transfer equipment, heat transfer or heat transfer to meet the original conditions, it's smaller in size. Heat exchanger heat transfer enhancement methods commonly used include three categories: extended heat transfer area (F); increase the heat transfer temperature difference; to improve the heat transfer coefficient (K). An enhanced heat transfer heat exchanger means expansion of the heat transfer area F 1.1
Extended heat transfer area is to increase the heat transfer using the most simple way. Heat exchanger heat transfer area in the expansion process, if the simple expansion of the device through a single volume to increase heat transfer area or increase the number of equipment units to enhance heat transfer, not only need to increase investment in equipment, equipment, large area, the same time, heat transfer enhancement effect is not obvious, this method has now been eliminated. Now by using the most reasonable way to improve the heat transfer area per unit volume of equipment to achieve the purpose of enhancing heat transfer, such as large-scale use in the heat exchanger on the heat transfer area per unit volume of the larger finned tubes, bellows, plate-fin heat transfer surface and other materials, through the use of these materials, a single unit heat transfer area per unit volume will be significantly improved, fully achieve efficient heat transfer equipment, compact purpose. 1.2 increase the heat transfer temperature difference Δt
Increase the heat exchanger heat transfer temperature difference Δt is the effect of heat exchanger used to strengthen one of the measures.
In the course of the heat exchanger, radiant heating panels to improve the steam pipe pressure, increase the temperature hot water heating, hot water, air cooled condenser water temperature is lower with deep well water instead of tap water, air cooler reduces the temperature of cooling water, etc. , can directly increase the heat exchanger heat transfer temperature difference Δt.
