Axial positioning device of heat transfer pipe internal rotation cleaning element

An axial positioning and heat transfer tube technology, which is used in cleaning heat transfer devices, rotating equipment cleaning, lighting and heating equipment, etc. It can solve the problems of difficult dirt cleaning resistance, reduced rotation torque of rotating cleaning elements, and low flow rate.
CN1206507CInactive Publication Date: 2005-06-15株洲工学院帅科机械清洗研究所
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
株洲工学院帅科机械清洗研究所
Publication Date
2005-06-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

An axial positioning device for rotating cleaning elements in a heat transfer tube. The deflectors and wall-attached cylinders arranged on the bearing seat and the wall of the heat transfer tube form a spiral flow channel. When the heat transfer fluid entering the tube passes through the spiral flow channel, it forms a The fast swirling flow with a large radius directly pushes the rotary cleaning element to generate a large dynamic moment, which is superimposed on the same direction as the original rotation moment of the cleaning element, which can increase the working torque by more than twice as much as the original, so that the driven The flow rate in the tube required for the rotation of the cleaning element is reduced by more than 60%, so that the self-rotation cleaning and anti-scaling technology can be widely applied to various shell and tube heat transfer equipment with low flow rate. This nozzle fixing device is also equipped with an adjusting plate, which can be used to improve the uniformity of the amount of liquid entering each heat transfer tube, improve the heat transfer efficiency, and the resistance is not large, so the application range is quite wide.
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Description

technical field

[0001] The invention relates to an axial positioning device for a rotating cleaning element in a heat transfer tube. It is suitable for various shell and tube heat transfer equipment for on-line rotary cleaning, such as heat exchangers, condensers, evaporators, etc. Background technique

[0002] US Patent No. 4174750 and Chinese Patent Document CN2214239Y both disclose a cleaning device in a heat transfer tube, which includes a heat transfer tube, a rotating cleaning element in the tube, and a fixing device for the rotating cleaning element at the liquid inlet end of the heat transfer tube. Driven by the heat transfer fluid in the tube, the rotating cleaning element rotates to scrape the dirt on the inner wall of the tube, and has the function of online, automatic and continuous cleaning and anti-scaling; due to the diversion effect of the rotating cleaning element, the liquid flows in a helical line, and the inside of the tube The disturbance of the fluid f...

Claims

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