Extrusion cleaning device for heat exchange tube

Abstract

The invention discloses an extrusion cleaning device for a heat exchange tube. A cleaning mechanism can achieve axial extrusion cleaning and circumferential extrusion cleaning along the tube, the cleaning modes are widened and can be freely switched, not only can the extrusion cleaning device be applied to cleaning of all areas in the axial direction of the tube, but also targeted cleaning can beconducted for partial areas which are prone to being scaled and have more scales, and different cleaning requirements can be met. Cleaning is conducted through two cleaning wheels for the two cleaningmodes, the switching mode is simple and easy to operate, mutual influence can not occur, more requirements are met, and the problem that a traditional cleaning mode is simple is solved. The cleaningdevice does not need a specific flexible material tube and is wide in application range.

Description

technical field [0001] The invention relates to the technical field of heat exchange tubes, in particular to a squeeze cleaning device for heat exchange tubes. Background technique [0002] The cleaning methods of heat exchanger tubes include physical cleaning, chemical cleaning, ultrasonic cleaning, etc. In the physical cleaning method in the prior art, brushes are used to scrub the tube wall, which is easy to draw traces, and by setting spoilers in the tube, Such as the spring method, the cleaning effect is not good; in the prior art, there is a way of using extrusion to separate the dirt in the tube from the tube body under pressure, so as to realize the cleaning method of cleaning the dirt in the tube, such as in CN105066748A, by The pipe body is made of elastic and deformable material. By passing fluids with different pressures, the pipe body is expanded or contracted under pressure, so as to achieve the effect of detaching dirt; this cleaning method can effectively rem...

AI Technical Summary

Problems solved by technology

[0002] The cleaning methods of heat exchanger tubes include physical cleaning, chemical cleaning, ultrasonic cleaning, etc. In the physical cleaning method in the prior art, brushes are used to scrub the tube wall, which is easy to draw traces, and by setting spoilers in the tube, Such as the spring method, the cleaning effect is not good; in the prior art, there is a way of using extrusion to separate the dirt in the tube from the tube body under pressure, so as to realize the cleaning method of cleaning the dirt in the tube, such as in CN105066748A, by The pipe body is made of elastic and deformable material. By passing fluids with different pressures, the pipe body is expanded or contracted under pressure, so as to achieve the effect of detaching dirt; this cleaning method can effectively remove dirt, but the requirements for the pipe body More stringent, the material of the pipe body needs to be deformable within a certain range, and the deformation is more obvious. For the pipe body of the slightly deformed material, the pressure difference is only caused by passing fluids with different pressures, and the effect is poor.

In addition, there is a method of extruding the pipe body with an extrusion device to remove scale, such as in CN207703075U, through the horizontal and vertical cylinders, the pressure is applied to the plate, and then transferred to the pipe, so as to achieve scale removal. Although it can be applied to tubes with slightly harder materials, this cleaning device needs to disassemble the heat exchange tubes for extrusion cleaning

It is not practical for welded pipes, and the cleaning method is relatively simple, which can only achieve extrusion along the circumference of the pipe. The cleaning method is single and the effect is not obvious

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