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Abstract:
Since the
heat resistance produced by fouling of heat exchangers is great and the
energy consumption is high, the fouling of heat exchangers has brought
about billions of dollars of economic losses of China industries. In
order to realize the foul removing/preventing on line and enhance heat
transfer, the miniature hydraulic turbine in the heat exchanger tube is
invented. Such hydraulic turbine works of itself while the fluid in the
tube flow. As the rotor continuously scrub the heat exchanger tube, it
is hard to form the new foul and easy to remove the original foul.
Furthermore, the hydraulic turbine enables the sticky boundary layer to
be disturbed, and enhance heat transfer. The industrial tests prove that
using this miniature hydraulic turbine in the heat exchanger tube has a
good effect on foul removing/preventing. Utilizing this technology has
great significance in saving energy. The working principles, the
rotational speed properties, the flow resistance properties and the
industrial tests for foul removing/preventing on line of the miniature
hydraulic turbine in the heat exchanger tube are introduced.
Key words:
Hydraulic
turbine Heat exchanger tube Foul removing/preventing on line
Heat transfer enhancing Energy saving
CLC No: TQ050
国家自然科学基金资助项目. 选自2000年第一届国际机械工程学术会议，, received in revised form 20010318
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