An inner tube spinning type purification and thermal conduction reinforced spiral -curved tooth tube

A technology of heat transfer enhancement and helical teeth, which is applied in the direction of cleaning heat transfer devices, cleaning of rotating equipment, lighting and heating equipment, etc., can solve problems such as wear and tear of heat transfer equipment, difficulty in application, etc., and achieve actual flow rate increase, efficiency improvement and uniformity The effect of stability, convenient packaging and transportation and on-site assembly

Inactive Publication Date: 2004-03-31
株洲工学院帅科机械清洗研究所
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AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is the wear problem existing in the above-mentioned self-rotating steel wire helical line cleaning technology and the problem that the low flow rate (in the range of 0.2m / s-0.7m / s) heat transfer equipment is difficult to apply. The plastic helical tooth tube with enhanced cleaning and heat transfer will not wear the heat transfer tube wall, but also double the rotation cleaning torque, which can be widely used in low flow rate heat transfer equipment

Method used

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  • An inner tube spinning type purification and thermal conduction reinforced spiral -curved tooth tube
  • An inner tube spinning type purification and thermal conduction reinforced spiral -curved tooth tube
  • An inner tube spinning type purification and thermal conduction reinforced spiral -curved tooth tube

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Embodiment Construction

[0009] Attached below figure 1 And attached figure 2 The present invention is described in further detail.

[0010] In the figure 1. Rotating shaft 2. Nozzle fixing device 3. Shaft head 4. Filling liquid 5. Inner tube 6. Helical teeth 7. Heat transfer tube 8 Ball 9 Plastic helical gear tube 10. Inner cavity

[0011] A plastic spiral-toothed tube with self-rotating cleaning and enhanced heat transfer in the tube is composed of an inner tube 5 and a spiral tooth 6 . The cross-sectional shape of the helical teeth 6 provided on the outer surface of the inner tube 5 is narrow at the tooth top and wide at the bottom, preferably trapezoidal for easy manufacture. The helix angle of the helical tooth 6 is in the range of 25°-70°. The ratio h / D of the tooth height h of the helical tooth 6 to the inner diameter D of the heat transfer tube 7 is in the range of (0.10-0.35), and the tooth tip clearance h between the helical tooth 6 and the heat transfer tube 7 0 In the range of (0.020-...

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Abstract

A inner tube rotating type purification and heat transfer reinforcement plastic helical tooth tube, wherein free rotating plastic helical tooth tube can be arranged in the heat transfer tube, whose inner chamber is stuffed by liquid or balls having good fluidity and an same integral density as that of the heat-transfer fluid in the tube, thus keeping the suspended state constantly. The tube by the invention effective reinforces the convective heat transfer, the heat transfer coefficient is increased by over 55%, thus 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 plastic spiral tooth tube with self-rotating cleaning and enhanced heat transfer in the tube. It is suitable for various heat transfer equipment with shell and tube structure, such as heat exchanger, condenser, evaporator, etc. Background technique [0002] Chinese patent ZL91213000.8 and literature (Experimental Research on Automatic Rotating Helical Heat Transfer Technology, Chemical Equipment Technology, 1997, N5, P4-8) reported a kind of steel wire helix in the heat transfer tube for descaling and anti-scaling and its heat transfer enhancement Technology, the steel wire spiral rotates under the drive of the flow energy of the heat transfer liquid in the tube, scrapes 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 steel wire spiral, the liquid flows in a spiral line and the steel wire The spiral has a disturbing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28G3/00
Inventor 俞天兰俞秀民刘桂英蒋少青支校衡崔晓利彭德其吴金香金俊杰
Owner 株洲工学院帅科机械清洗研究所
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