Copper evaporating heat-exchanging pipe of evaporator for bromine refrigerator set

A heat exchange tube and fin technology, which is applied in the field of copper evaporation heat exchange tubes, can solve the problems of unreasonable heat exchange performance and energy exchange, lowering the temperature of the working medium in the heat exchange tube, and cannot fully meet the requirements of improving efficiency, etc. The effect of size, faster condensation, and longer service life

Active Publication Date: 2007-06-20
GOLDEN DRAGON PRECISE COPPER TUBE GROUP
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the condenser tubes produced by the existing technology are generally copper smooth tubes or other improved heat exchange tubes based on this, which can no longer fully meet the requirements of improving efficiency, reducing costs, and saving energy.
The existing condenser tubes mainly have the following defects: 1. Most of the copper tubes produced in the prior art are copper tubes specially used for non-lithium bromide absorption refrigerators, which are not suitable for the flow law of the fluid in the lithium bromide absorption refrigerator, so the heat transfer performance and The energy exchange is unreasonable and the efficiency is low; 2. Some heat exchange tubes are equipped with a large number of blades (that is, thin fins) on ordinary smooth copper tubes to increase the heat dissipation area, although the heat transfer efficiency is higher than that of ordinary smooth copper tubes. Improvement, but the assembly of fins on the heat exchange tube not only increases the cost, but also increases the overal

Method used

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  • Copper evaporating heat-exchanging pipe of evaporator for bromine refrigerator set
  • Copper evaporating heat-exchanging pipe of evaporator for bromine refrigerator set
  • Copper evaporating heat-exchanging pipe of evaporator for bromine refrigerator set

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Embodiment Construction

[0019] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0020] Please refer to FIG. 1, the heat exchange tube 100 of the present invention includes a polished rod portion 1 located at both ends of the heat exchange tube 100, a finned portion 3 with fins 31 between the two polished rod portions 1, a polished rod portion 1 and a finned portion. The transition part 11 between 3, the inner tooth 33 arranged on the inner surface of the tube, the fin 31 is a single helical fin, and the fin 31 is also provided with a secondary groove 32, and the secondary groove 32 connects the fin 31 partitions form individual fins. Preferably, the heat exchange tube 100 of the present invention is made of copper material.

[0021] The outer diameter D of the polished rod portion 1 of the present invention ranges from 12-26 mm, the wall thickness T ranges from 0.5-0.9 mm, and the length L of the transition portion ...

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Abstract

A copper evaporation heat-exchange tube for evaporators of bromide refrigerating units comprises a fin part and polish rod parts at two ends of the fin part. On the fin part are disposed single-spiral fins and on the fins are opened secondary slots. The ratio of the fin width to the width of the fin slot bottom is 0.25-0.38.

Description

technical field [0001] The invention relates to an evaporation heat exchange tube, in particular to a copper evaporation heat exchange tube used in an evaporator of a bromine refrigeration unit. Background technique [0002] Since June 1990 in London, England, it was determined to advance the timetable for restricting the use of CFC (Cholrofluorocarbons, freon). Developed countries are not allowed to use it before 2000, and developing countries can extend it for another 10 years. There is no research and application of CFC substitutes. With rapid development, green and environmentally friendly non-CFC substitutes have gradually been widely used, and lithium bromide absorption refrigerators are one of them. With the advancement of science and technology, the continuous innovation of new technologies and new methods has made lithium bromide refrigerators develop towards high efficiency, miniaturization, and light weight. The condenser tube, which is a key component of refriger...

Claims

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Application Information

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IPC IPC(8): F28F1/36F28F1/42F25B39/02
CPCF28F1/36F28D2021/0071F28F13/00F28F1/422F28F1/42F28F17/005
Inventor 郝云玉蒋强王凯张玲
Owner GOLDEN DRAGON PRECISE COPPER TUBE GROUP
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