Winding type spiral pipe heat exchanger

A spiral tube and heat exchanger technology, applied in the field of winding spiral tube heat exchangers, can solve the problem that the structure design of the heat exchanger cannot achieve the heat exchange technology without cross-contamination, the contact area between the thick tube and the thin tube is small, and the metal consumption is small. problem of large quantity

Inactive Publication Date: 2008-07-23
ZHEJIANG UNIV
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Problems solved by technology

Although this type of heat exchanger has a simple structure and is easy to process, its metal consumption per unit of heat exchange is large, and its manufacturing cost also increases accordingly.
And when the inner tube ruptures, CO 2 Leakage will affect water quality, and the structural design of the heat exchanger cannot meet the requirements of cross-contamination-free heat exchange technol

Method used

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  • Winding type spiral pipe heat exchanger
  • Winding type spiral pipe heat exchanger

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[0015] The principle and structure of the present invention will be further described below in conjunction with the accompanying drawings.

[0016] As shown in Figure 1, the wound spiral tube heat exchanger includes one or more thin tubes 1, one spiral tube 2, one or more distributors 3, one or more collectors 4, and the two ends of the thin tubes 1 are respectively It is connected with distributor 3 and collector 4 , distributor 3 is provided with inlet 5 , collector 4 is provided with outlet 6 , thin tube 1 is wound on spiral tube 2 .

[0017] The thin tube 1 is wound in parallel and embedded in the groove on the outside of the helical tube. As shown in Figures 3 and 4, the thin tube is mechanically in close contact with the groove or connected by welding. The cross-sectional shape of the groove on the outer side of the spiral tube 2 is arc-shaped at the bottom, and the two sides of the upper part are streamline transitional profiles. The shape and structure of the wound s...

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Abstract

The invention discloses a winding spiral pipe heat exchanger, the structural style is characterized in that a tubule is winded and embedded into a groove at the outside of the spiral pipe. Wherein one or a plurality of fluid is flowed in the tubule; a fluid is flowed in the spiral pipe; the winding spiral pipe can realize multi-flow heat exchange with the spiral pipe. The groove structure can enlarge heat exchange area and improve the efficiency of heat transfer. In addition, the multi-flow of the tubule can make the fluid in the spiral pipe implement heat exchange with one or a plurality of fluid, so the flexibility and heat exchange efficiency of the heat exchanger can be improved greatly. Compared with the micro-channel heat exchanger, the winding spiral pipe heat exchanger has the advantages that: the structure is simple; the processing is convenient; the metal consumption is less compared with the extension-type heat exchanger; the manufacturing cost is low; the heat exchange coefficient of the fluid is over 2 times than that of the extension-type heat exchanger; if the fluid of the tubule or the fluid of the spiral pipe is leaked, a cross-contamination will not be happened; thereby the winding spiral pipe heat exchanger is most suitable for transcritical CO2 heat pump water heater and other systems.

Description

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Claims

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Application Information

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IPC IPC(8): F28D7/02
Inventor 陈光明徐肖肖刘爽唐黎明
Owner ZHEJIANG UNIV
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