Magnetic Bionic Blade Rotor in Heat Exchange Tubes

Abstract

The invention aims at designing rotors of a novel structure. Rectangular open hole structures are arranged on the surfaces of blades of the rotors; spiral small blade structures opposite to the overall direction of the blades are arranged at rectangular open holes; and meanwhile, magnets are attached to the two ends of a hollow shaft of each rotor. According to the rotors of the structure, the frictional resistance between the adjacent rotors is obviously reduced, and the fluid resistance is reduced; meanwhile, the strengthened heat transfer performance and the self-cleaning performance of the rotors are not reduced; and the strengthened heat exchange performance and the descaling performance of the rotors can be further improved.

Description

technical field [0001] The invention relates to an interpolation element for enhancing heat transfer and anti-fouling and decontamination in heat exchange tubes used in shell-and-tube heat exchangers, heat exchange reactors and other equipment, in particular to an interpolation element that uses the heat transfer fluid inside the heat exchange tube as the Power, low energy consumption and high efficiency magnetic bionic (shark gills) blade rotor that realizes self-cleaning and enhanced heat transfer function. Background technique [0002] Energy saving and emission reduction is a key technology that the whole world attaches great importance to. It is applied to many heat exchangers in many fields such as petroleum, chemical industry, thermal power, nuclear power, metallurgy, light industry, aviation devices and marine vehicles, among which the most Shell-and-tube heat exchangers are widely used, but there are common problems of fouling and fouling in the inner walls of these...

AI Technical Summary

Problems solved by technology

To sum up, the spiral bond has the following main disadvantages: (1) The bond is a whole, which directly scratches the heat transfer tube and damages the inner wall of the heat transfer tube; (2) When the fluid flows to push the bond to rotate, it requires a large driving torque and consumes more (3) The service life of the bearing used for single-end fixing is short; (4) The effect of field synergy enhanced heat transfer generated by the bond is not significant

But the disadvantage is that when a certain fluid passes through, the rotation speed of the rotor is determined by the helix angle of the flight. When the flight lead is small, the rotation speed of the rotor is fast, and the resistance to the fluid increases accordingly; in order to solve this problem , China Patent Application No. 200910077378.0, the title of the invention is "A Unit Combined Enhanced Heat Transfer Device". The device is composed of a rotor, a support frame, a sleeve shaft and a connecting axis. The two ends of the tube are respectively fixed on the support frame, and multiple rotors are mounted on the connecting axis. The rotor is composed of a spoiler blade, a hinge structure, and a tail screw drive blade. This structure can significantly reduce the flow resistance of the fluid in the tube. , reduce wear and prolong the service life of the rotor, but the enhanced heat transfer and anti-scaling and descaling capabilities of the rotor with this structure are limited to a certain extent

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