Heat exchanger

A technology of heat exchangers and heat exchange tube bundles, applied in heat exchange equipment, heat exchanger types, indirect heat exchangers, etc., can solve problems such as pump power consumption and heat transfer performance mismatch, and achieve improved field synergy, Improve thermal efficiency and enhance the effect of convective heat transfer

Inactive Publication Date: 2012-02-08
SOUTHEAST 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 by the present invention is the mismatch between pump power consumption and heat transfer performance existing in the structural design of heat exchange tube bundles in existing heat exchangers

Method used

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with accompanying drawing.

[0027] figure 1 A structural schematic diagram of the multi-scale Sierpinski carpet heat exchanger of the present invention is given. The invention relates to a heat exchanger having the characteristic heat exchange tube bundle of Sierpinski carpet fractal structure, which is composed of Sierpinski carpet fractal heat exchange tube bundle, shell, tube plate and other main parts. The cross-sectional shape of the shell is generally rectangular. The tube sheets 1 and 4 are respectively located on both sides of the shell 2. The two ends of the Sierpinski carpet fractal heat exchange tube bundle 3 are fixed and pass through the left and right tube sheets 1 and 4. The inlet and outlet of the shell-side fluid 5 are located on the shell 2, and the inlet and outlet of the tube-side fluid 6 are located on the tube sheets 1 and 4. In this way, the tube sheet can not only separate the...

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Abstract

The invention discloses a heat exchanger, which comprises a heat exchanging pipe bundle, a shell and pipe plates. The pipe plates are positioned at two sides of the shell. The two ends of the heat exchanging pipe bundle are fixed on the pipe plates and pass through the pipe plates. The heat exchanger is characterized in that the section area size and the distribution of the heat exchanging pipe bundle satisfy Sierpinski carpet type fractal structural characteristics; and the fractal grade number is 2-8 grades. According to the heat exchanger disclosed by the invention, the space of the shell is sufficiently utilized to arrange the heat exchanging pipe bundle maximally so that the heat exchange area is increased; simultaneously, the heat exchanging pipe bundle is in multi-grade array arrangement; the section of the heat exchanging pipe bundle is periodically changed in the shell; the fluid heat exchange field cooperativity is greatly increased; the heat effectiveness (heat exchange quantity / pumping work) of the heat exchanger is increased maximally; and the purposes of effectively exchanging heat and saving energy are achieved.

Description

technical field [0001] The invention relates to a flow heat exchange device, in particular to a heat exchanger designed for enhancing the comprehensive performance of flow heat exchange and having heat exchange tube bundles with Sierpinski carpet structure characteristics. Background technique [0002] At present, heat exchangers have been widely used in industrial production. For example, in petrochemical, energy, power, machinery manufacturing, environmental protection, aerospace and other industrial fields, heat exchangers have been widely used and play a very important role. Therefore, it is particularly important to optimize the design of the heat exchanger to improve its flow heat transfer efficiency. [0003] A heat exchanger usually arranges many identical parallel tube bundles in a shell, one fluid flows in the tubes, and the other fluid flows in the shell side, and the hot and cold fluids exchange heat through the heat exchange tube bundles. According to the theor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D7/16F28F1/04F28F1/00
Inventor 陈永平邓梓龙杨立波施明恒
Owner SOUTHEAST UNIV
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