Heat transfer tube unit combined plug-in hard-wired device

Abstract

The invention provides a heat transfer tube unit combined plug-in hard-wired device, mainly comprising a central spindle, a connection buckle, a stop ball head and a rivet, wherein the connection buckle is provided with three radially rectangular through holes and a through hole; the inner diameter of the through is slightly greater than the outer diameter of a central spindle; the stop ball headis provided with a stop ball head through hole; the inner diameter of the stop ball head through hole is slightly greater than the outer diameter of the central spindle; a threaded hole is arranged at one side perpendicular to the stop ball head through hole; the stop ball head is fixed on the central spindle through a screw; and two hard-wired central spindles are connected together through the connection buckle and the stop ball head in installation. According to the heat transfer tube unit combined plug-in hard-wired device, the hard-wired rotor can be suspended in the heat transfer tubes well so as to avoid the phenomenon that the rotor scrapes the tube walls due to swing of the central spindle in the running process; the stop ball head is spherical to reduce the increased water resistance; and the two hard-wired sections can be quickly disassembled by using the connection buckle and the stop ball head, thus improving the plug-in installation efficiency on the site.

Description

technical field [0001] The invention relates to a device for enhancing heat transfer and scale removal and anti-scaling in heat exchange tubes used in shell-and-tube heat exchangers, heat exchange reactors and other equipment, in particular to a connection device between combined inserts of heat exchange tube units . Background technique [0002] With the continuous progress of society and the continuous improvement of people's living standards, people's requirements for the living environment are getting higher and higher. Therefore, energy saving and emission reduction has become a key technology that the world attaches great importance to, especially in petroleum, Many heat exchangers are used in chemical industry, nuclear power, thermal power, metallurgy, light industry, aviation equipment and ship vehicles, among which the shell and tube heat exchanger is the most widely used, but these heat exchangers generally have heat transfer The phenomenon of fouling on the inner...

AI Technical Summary

Problems solved by technology

However, since the connection adopts the soft connection of the flexible shaft, the rotor and the flexible shaft have a certain weight. Under the action of gravity, the rotor in the middle of the heat exchange tube will deviate from the axis of the heat exchange tube and sink. When the heat exchanger is working normally, under the impact of the medium, the rotor and the flexible shaft will produce an eccentric rotational movement away from the axis of the heat exchange tube, which will cause the rotor to scrape against the tube wall of the heat exchange tube, causing wear on the tube wall At the same time, the rotor itself is also subject to wear, which reduces the service life of the rotor

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