Rotating piece type automatic-cleaning and heat-transfer enhancing device

Abstract

The invention relates to a rotating piece type automatic-cleaning and heat-transfer enhancing device, in particular to a device used for a heat transfer pipe for a tubular heat exchange device. The device comprises one or more rotating piece(s), hanging parts, an axial line and limiting rivets and is used by being placed in a heat exchanger, wherein the number of the hanging parts is two, and the two hanging parts are respectively fixed at both ends of the heat transfer pipe; the rotating pieces are placed in the heat transfer pipe of the heat exchanger; the rotating pieces are used and arranged in groups, and the limiting rivets are arranged between each group of the rotating pieces at intervals; the axial line penetrates through an axle holes of the rotating pieces and the limiting rivets, and both ends of the axial line are fixed on the two hanging parts; the rotating pieces are of screw twisted shapes, concavo-convex slot structures are alternatively arranged at the position of the axial line at intervals and are axle holes of the axial line, the friction between the rotating pieces and the axial line can be effectively reduced, thus the service life of the rotating pieces is prolonged; and the rotating pieces have simple molds, can be made of plastics or metal and can be molded by pressing or by injection according to the different materials. The device has the dual functions of automatic on-line cleaning and scaling control and enhancing heat transfer in the heat transfer pipe and is convenient to manufacture, assemble, use and replace.

Description

technical field [0001] The invention relates to a device for preventing and removing scale and enhancing heat transfer in heat transfer tubes of tubular heat exchange equipment, in particular to a device for automatically preventing and removing scale and enhancing heat transfer by using the fluid in the heat transfer tube as power. Background technique [0002] Scaling on the inner wall of the heat transfer tube of the heat exchanger will lead to a decrease in heat transfer efficiency and an increase in fluid flow resistance, thus increasing energy costs and production costs of the enterprise. What is more serious is that scaling will also form corrosion under the scale, causing potential safety hazards , shorten the service life of heat transfer equipment. Shutdown cleaning will affect the normal production. [0003] Among the existing heat transfer enhancement and online cleaning methods, the spiral twisted ribbon method uses fluid kinetic energy as the driving force to ...

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Problems solved by technology

However, under more severe conditions, the wear between the rotor and the axis will be greater, which will reduce its service life; and because the shape and structure

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