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A shell-and-tube heat exchanger of a multi-tube type steady flow device with condensable vapor phase

A shell-and-tube heat exchanger and flow stabilization device technology, applied in indirect heat exchangers, heat exchanger types, fixed tubular conduit assemblies, etc., can solve the problems of strong vibration, impact equipment and pipelines, and occupying air mass space, etc. , to reduce noise and vibration, improve heat transfer effect, strengthen heat transfer effect

Inactive Publication Date: 2019-01-18
SHANDONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Vapor-liquid two-phase flow heat exchange widely exists in various heat exchange devices. Due to the existence of the vapor phase in the heat exchange process of vapor-liquid two-phase flow, the heat exchange efficiency will be low, the heat exchange will be deteriorated, and the fluid flow process will be unstable. , and will lead to the occurrence of impact phenomenon
When the gas-liquid phase of the two-phase working fluid is not uniformly mixed and flows discontinuously, the large-sized liquid mass will occupy the air mass space at high speed, resulting in unstable two-phase flow, which will violently impact equipment and pipelines, resulting in strong vibration and noise , which seriously threatens the safety of equipment operation

Method used

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  • A shell-and-tube heat exchanger of a multi-tube type steady flow device with condensable vapor phase
  • A shell-and-tube heat exchanger of a multi-tube type steady flow device with condensable vapor phase
  • A shell-and-tube heat exchanger of a multi-tube type steady flow device with condensable vapor phase

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Embodiment Construction

[0038] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0039] In this article, if there is no special explanation, when it comes to formulas, " / " means division, and "×" and "*" mean multiplication.

[0040] It should be noted that, unless otherwise specified, the two-phase flow mentioned in the present invention is a vapor-liquid two-phase flow, where the vapor phase can be condensed into a liquid phase during the heat exchange process.

[0041] like figure 1 A shell-and-tube heat exchanger is shown, and the shell-and-tube heat exchanger includes a shell 4, a heat exchange tube 6, a tube-side inlet pipe 12, a tube-side outlet pipe 13, a shell-side inlet connecting pipe 14 and a shell The outlet connecting pipe 15; the heat exchange tube bundle composed of a plurality of parallel heat exchange tubes 6 is connected to the front tube sheet 3 and the rear tube sheet 7; the front end of the front...

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Abstract

The invention provides a gas-liquid two-phase flow multi-tube shell-and-tube heat exchanger, which includes a shell, and the two ends of the shell are respectively provided with heads, and the connection position between the head and the shell is set with a tube plate. The heat exchange tubes are connected to the tube sheets at both ends, and the vapor phase in the vapor-liquid two-phase flow can be condensed into a liquid phase during the heat exchange process. A body and a shell, the core is arranged in the shell, the shell is connected and fixed with the inner wall of the heat exchange tube, and the core is composed of several adjacent tubes. The invention provides a heat exchanger of a flow stabilizing device with a new structure, which can enhance heat transfer, weaken the vibration of the pipeline and reduce the noise level when there is a vapor-liquid two-phase flow in the pipeline.

Description

technical field [0001] The present invention relates to a shell-and-tube heat exchanger, and more particularly to a two-phase flow heat exchanger containing condensable gas. Background technique [0002] Vapor-liquid two-phase flow heat exchange widely exists in various heat exchange devices. Due to the existence of the vapor phase in the heat exchange process of vapor-liquid two-phase flow, the heat exchange efficiency will be low, the heat exchange will be deteriorated, and the fluid flow process will be unstable. , and will lead to the occurrence of impact phenomenon. When the gas-liquid phase of the two-phase working fluid is not uniformly mixed and flows discontinuously, the large-sized liquid mass will occupy the air mass space at high speed, resulting in unstable two-phase flow, which will violently impact equipment and pipelines, resulting in strong vibration and noise , which seriously threatens the safety of equipment operation. [0003] Therefore, aiming at the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28D7/16F28F1/40
CPCF28D7/16F28F1/40
Inventor 郭春生曲芳仪刘勇冯子涛王准张浩
Owner SHANDONG UNIV
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