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An inner tube spinning type purification and thermal conduction reinforced tooth shape twisting belt

A heat transfer enhancement and twisted belt technology, applied in the field of toothed twisted belts, can solve the problem of small torque of helical twisting, and achieve the effect of high convective heat transfer coefficient and enhanced convective heat transfer effect.

Inactive Publication Date: 2004-03-31
株洲工学院帅科机械清洗研究所
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is that the dynamic torque of the existing spiral twisted belt is too small to rotate at a lower flow rate and is difficult to apply. A toothed twisted belt with self-rotating cleaning and heat transfer enhancement in the tube is proposed, which can be formed Doubling the rotation moment, it can be applied at a lower flow rate (in the range of 0.4m / s-1.0m / s), and the heat transfer enhancement effect is better

Method used

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  • An inner tube spinning type purification and thermal conduction reinforced tooth shape twisting belt
  • An inner tube spinning type purification and thermal conduction reinforced tooth shape twisting belt
  • An inner tube spinning type purification and thermal conduction reinforced tooth shape twisting belt

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Embodiment Construction

[0012] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0013] In the figure 1. Nozzle fixing device 2. Rotating shaft 3. Helical twisted belt head 4. Connection hole 5. Helical twisted belt 6. Heat transfer tube 7. Strengthening teeth 8. Flowing liquid in the tube 9. Reaction force 10. Additional rotational power moment

[0014] A tooth-shaped twisted belt with self-rotating cleaning and heat transfer enhancement in the tube, made of engineering plastics, with a width slightly smaller than the diameter of the heat transfer tube 6, a length that is basically the same as that of the heat transfer tube 6, and a connecting hole 4 The helical sheet-shaped twisted ribbon 5 is placed in the heat transfer tube 6 . The rotating shaft 2 is connected with the connecting hole 4 of the head 3 of the spiral twisted band, the other end of the rotating shaft 2 is axially fixed on the spout fixing device 1, and the rotating shaf...

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Abstract

A inner tube rotating type purification and heat transfer reinforcement notched belt, having the double functions of automatic purification and scale prevention and heat transmission reinforcement inthe heat transmission pipes, wherein reinforcement teeth are arranged on both sides of the spiral band at a finite distance, the counteracting force resulted by the guided liquid of the reinforcementteeth can increase the rotation cleaning torque by 277%. The invention can be widely used in the automatic purification and scale prevention for various type of low flow rate column tubes type heat transfer equipment.

Description

technical field [0001] The invention relates to a tooth-shaped twisted belt with self-rotating cleaning and heat transfer enhancement in a tube. In particular, it relates to an automatic descaling and antiscaling device for a shell and tube heat exchanger. It is suitable for various heat transfer equipment with shell and tube structure, such as heat exchanger, condenser, evaporator, etc. Background technique [0002] U.S. Patent US4174750 and Chinese Patent Literature CN2214239Y all disclose a kind of rotary automatic cleaning device in the heat transfer tube, which consists of a spiral twisted belt that can rotate in the heat transfer tube and an end of the spiral twisted belt that is fixed on the liquid inlet end of the heat transfer tube Axial fixing device composition. Driven by the heat transfer fluid in the tube, the spiral twisted belt rotates by itself, scraping the dirt on the inner wall of the tube, and has the function of online, automatic and continuous cleanin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28G3/00
Inventor 俞秀民俞天兰支校衡蒋少青刘桂英彭德其宁立伟谢骐吴金香金俊杰
Owner 株洲工学院帅科机械清洗研究所
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