Inner turbulent flow dirt cleaning rotor of heat exchanging pipe

Abstract

The invention discloses an inner turbulent flow dirt cleaning rotor of a heat exchanging pipe, and the inner turbulent flow dirt cleaning rotor can clean and prevent dirt and strengthen heat transferring. The inner turbulent flow dirt cleaning rotor mainly comprises inner blades, outer blades and a center shaft. The inner blades are connected with the outer blades. The inner turbulent flow dirt cleaning rotor is characterized in that the inner blades are connected with the center shaft and are in a spiral shape, and the inner blades are provided with through holes; the outer blades are in a straight plate shape, the outer portions of the outer blades are provided with cylindrical rollers with the outer surfaces making contact with the inner wall of the heat exchanging pipe, center shafts of the cylindrical rollers are fixed to the outer blades, and the cylindrical rollers rotate around the center shafts of the corresponding cylindrical rollers; gaps are reserved between the inner blades and the outer blades. When the rotor rotates, the cylindrical rollers rotate along the inner wall of the pipe, strip-shaped protrusions on the cylindrical rollers have the function of extruding and cutting the dirt on the pipe wall, promote the dirt to be peeled off the heat exchanging pipe wall, and have the function of cleaning the dirt. For the cleaned heat exchanging pipe, the rotor can postpone the starting stage of the dirt when rotating, the inner blades have the turbulent flow function on liquid, the turbulence degree of the liquid inside the pipe is increased, and the effect of strengthening heat transferring is achieved.

Description

technical field [0001] The invention relates to an interpolation element for enhancing heat transfer and anti-scaling and cleaning in the heat exchange tube of a shell-and-tube heat exchanger, in particular to an insert element powered by liquid in the heat exchange tube to enhance heat transfer and prevent fouling. Scale-cleaning rotor with disturbed flow in the heat exchange tube. technical background [0002] In recent years, energy saving and emission reduction technology has become an important key technology that countries are competing to study. Shell-and-tube heat exchangers are the most widely used heat exchange equipment in many fields such as petroleum, chemical industry, thermal power, nuclear power, metallurgy, light industry, aviation devices, and ship vehicles. The heat exchange efficiency directly affects the whole country and even the world. The effect of energy saving and emission reduction, but in the heat exchange tubes of shell and tube heat exchangers,...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the shortcomings of the existing technology that can only prevent scale and cannot remove scale, the purpose of this invention is to design a new type of rotor that can remove scale and prevent scale and enhance heat transfer. The rotor includes inner blades, outer blades and a center There is a cylindrical roller on the outside of the outer blade of the shaft, and there is a strip-shaped protrusion on the roller. When the rotor is driven by the liquid to rotate, the cylindrical roller on the outer blade of the rotor contacts and rolls on the pipe wall, and the protrusion Squeeze and cut the dirt to make it fall off, and achieve the purpose of cleaning and preventing dirt

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