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Heat exchanger tube

A technology of heat exchangers and tubes, which is applied in the field of tube-and-tube heat exchangers, and can solve problems such as tube corrosion or damage, and unsatisfactory cleaning effects

Inactive Publication Date: 2011-07-20
CHANGZHOU VOCATIONAL INST OF ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Practice has proved for a long time that these methods will cause corrosion or damage of the tubes to a certain extent, and the cleaning effect is not ideal

Method used

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Embodiment Construction

[0025] The present invention will be further described below through the description of specific embodiments with reference to the accompanying drawings.

[0026] One of the specific implementation modes, as attached figure 1 , 2 shown.

[0027] A tube array of a heat exchanger includes a tube body 1 on which a shape memory alloy thin film 2 is pasted. The shape memory alloy film 2 is a thermally expandable shape memory alloy film 2 - 1 , and the thermally expandable shape memory alloy film 2 - 1 is attached to the inner wall of the tube body 1 . Moreover, the heat-expandable shape memory alloy film 2-1 is formed of a sheet-shaped heat-expandable shape memory alloy thin plate, which is rounded and pasted on the inner wall of the pipe body 1 and connected with a slit opening to form a tubular structure. The heat-expandable shape memory alloy thin plate is a titanium-nickel alloy thin plate, and its thickness is in the range of 0.1-0.2 mm. The opening width of the heat-expan...

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Abstract

The invention discloses a heat exchanger tube which comprises a tube body (1). The heat exchanger tube is mainly characterized in that the tube body (1) is coated with a shape memory alloy thin film (2). The heat exchanger tube disclosed by the invention has the characteristics of simple structure and convenience in descaling, and the like. The heat exchanger tube is also suitable for many aspects such as fluid material delivery pipelines and the like.

Description

technical field [0001] The invention relates to a tube array of a heat exchanger, which belongs to the tube tube heat exchanger technology. Background technique [0002] The heat exchanger of the present invention includes a tube-and-tube heat exchanger in which the heat medium inside the tubes heats the medium to be heated outside the heat pipe, and a tube-and-tube heat exchanger in which the heat medium outside the tubes heats the medium to be heated in the heat pipe. [0003] During the use of the heat exchanger, due to the inevitable physical, chemical reaction or biological action of the fluid medium or fluid material existing inside and outside the tubes, deposits such as dirt and rust will be formed on the walls of the tubes. , Scaling and coking of ash scale, material scale and biological scale. Due to the dirt on the tube wall, the heat transfer efficiency and heat transfer per unit time decrease. The test results show that every 1mm thick dirt will consume 7-9% m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28F1/00F28F19/06
Inventor 李耀中颜惠庚李弘刘忠秀戴岩
Owner CHANGZHOU VOCATIONAL INST OF ENG
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