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Segmented combined type inner finned tube device for strengthening flow boiling heat exchange

A technology of segmented combination and boiling heat exchange, applied in tubular elements, heat transfer modification, heat exchange equipment, etc., can solve problems such as adverse effects, and achieve the effect of optimizing heat exchange performance, saving energy, and improving energy utilization efficiency

Pending Publication Date: 2022-03-11
DONGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved in this application is the problem that the pressure drop defect of the fully threaded pipe will have an adverse effect on the heat transfer of the fluid flow when the heat transfer is enhanced, and a technology for adjusting the heat transfer capacity is proposed at the same time

Method used

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  • Segmented combined type inner finned tube device for strengthening flow boiling heat exchange
  • Segmented combined type inner finned tube device for strengthening flow boiling heat exchange
  • Segmented combined type inner finned tube device for strengthening flow boiling heat exchange

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Embodiment

[0024] What this embodiment provides is a segmented combined finned tube device that enhances flow boiling heat exchange. The finned tube is divided into at least two sections, one of which is set as a threaded micro-finned tube 1 (referred to as a threaded tube), and the rest The sections are all set as smooth pipes 2, the inside of the finned tube is a gas-liquid circulation channel 5, one end is set as the fluid inlet 3 of the finned tube, and the other end is set as the fluid outlet 4;

[0025] The threaded micro-finned pipe 1 and the smooth pipe 2 are coaxially arranged, and the cumulative length and inner and outer diameters are consistent. Using welding technology, the two pipes are sealed into one body according to the front and rear sections and the middle section. There are three types in total. type, such as Figure 1 as shown, figure 1 The finned tube in a is divided into two sections as a whole, and the section near the fluid inlet 3 is set as a threaded micro-fi...

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Abstract

The invention discloses a segmented combined type inner finned tube device for strengthening flow boiling heat exchange, which is characterized in that a finned tube is at least divided into two sections, one section is arranged as a threaded micro-fin pipeline, the other section is arranged as a smooth pipeline, the finned tube is internally provided with a gas-liquid two-phase circulation channel, and the gas-liquid two-phase circulation channel is arranged in the finned tube. One end of the finned tube is a fluid inlet of the finned tube, and the other end of the finned tube is a fluid outlet. According to the segmented combined pipeline formed by combining the threaded pipe and the smooth pipe, the heat exchange performance is optimized by adjusting the arrangement of threads according to the flow pattern characteristics; meanwhile, the situation that the requirements for the heat exchange capacity are different exists in the actual life, all-smooth pipes or all-threaded pipes do not have flexible adjustability for the heat exchange effect, and a mode for controlling the heat exchange capacity is provided for people through the segmented combined type pipeline.

Description

technical field [0001] This application relates to a segmented combined inner finned tube device for enhanced flow boiling heat transfer, which is composed of threaded inner finned tubes and smooth tubes, belonging to the technical field of flow boiling heat exchange equipment, and used in nuclear energy, chemical industry, refrigeration, It is widely used in electronic cooling equipment, aerospace, new energy technology and other industrial fields. Background technique [0002] As the proportion of energy consumed by refrigeration equipment is increasing, how to further improve the working efficiency of the refrigeration system, reduce the pressure drop of the pipeline, especially how to strengthen the heat transfer performance of equipment and pipelines has become an urgent problem to be solved. At the same time, with the advancement of science and technology, heat transfer design technology for heat dissipation in high heat flux environments has become an important factor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28F1/08F28F1/40F28F13/08
CPCF28F1/08F28F1/40F28F13/08
Inventor 贾洪伟肖玉洁杨健程金玉何倩
Owner DONGHUA UNIV
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