High flow disturbance sphere rotor inside heat exchange pipe

Abstract

The invention relates to a high flow disturbance sphere rotor inside a heat exchange pipe. The high flow disturbance sphere rotor inside the heat exchange pipe is formed by a sphere, inclined straight blades and spiral blades; the inclined straight blades are arranged at two ends of the sphere; the spiral blades are arranged in the middle of the sphere; transparent hollow structures are arranged in the middle of the sphere and the surfaces of the spiral blades. According to the high flow disturbance sphere rotor inside the heat exchange pipe, radial motion of the fluid and damage to the boundary layer are increased due to the fact that combination of the inclined straight blades and a sphere front projection enables the heat transmission fluid which flows through the rotor front end to rush nearby the pipe wall; the tangential motion of the fluid is reinforced and the heat exchange process is further reinforced due to the fact that the inclination directions of the inclined straight blades are opposite to the screwing directions of the spiral blades; the flow disturbance function on the fluid inside the pipe is further reinforced due to the fact that the inclined straight blades are arranged at the rear end of the sphere; alternate screw motion at left and right screw directions of the fluid inside the pipe is achieved due to the fact that the inclined straight blades which are arranged at the rear end of the sphere are matched with the inclined straight blades which are arranged at the front end of the sphere and the spiral blades which are arranged in the middle.

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, a high-disturbance spherical rotor that realizes self-cleaning and enhanced heat transfer. 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 heat exchange tubes, which lead to increased resistance of...

AI Technical Summary

Problems solved by technology

In general, 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

Afterwards, the Chinese patent application number 200910077378.0, the title of the invention is "a unit combined heat transfer enhancement device". The device is composed of a rotor, a support frame, a sleeve shaft and a connecting axis. The two ends of the axis are respectively fixed on the support frame, and multiple rotors are mounted on the connecting axis. The rotor is composed of spoiler blades, hinge structure, and tail screw drive blades. This structure can significantly reduce the flow of fluid in the pipe. resistance, reduce wear, and prolong the service life of the rotor. However, because the central part of the rotor is a hollow structure, it weakens the enhanced heat transfer and anti-scaling and descaling performance in the central mainstream area.

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