Exchanger with honeycomb structure

Abstract

The invention discloses an exchanger with honeycomb structure, wherein, its frame (10) is in regular hexagon shape; the tube beam has several short honeycomb tubes (3) and long honeycomb tubes (4) to form honeycomb tube element (1), while the long honeycomb tubes (4) are adjacent with the short ones (3) with shared walls; the thickness of the wall of long and short tubes (4, 3) is 0.2-2mm; two ends of long honeycomb tube (4) are through to the inlet (7) and the outlet (1) of tube box (8). The invention has large unit heat exchange area, compact structure, high factor K, and high flexibility.

Description

technical field [0001] The invention relates to a shell-and-tube heat exchanger in energy technology, in particular to an exchanger with a honeycomb structure. Background technique [0002] Heat exchanger is a general process equipment widely used in power, metallurgy, refrigeration, oil refining, chemical industry, aviation, atomic energy, medicine and other industrial sectors. With the increasingly prominent energy problems, it is required to reduce the volume of the equipment as much as possible under the premise of satisfying the heat exchange, that is, to improve the compactness of the equipment, thereby reducing the weight of the equipment, saving materials, and correspondingly reducing the occupied area. As a result, high-efficiency heat exchangers came into being. In some application fields, there are special requirements for the size and weight of heat exchange equipment. Therefore, ultra-compact heat exchangers with small volume and large heat exchange area per un...

AI Technical Summary

Problems solved by technology

[0003] (1) The heat transfer area per unit volume is small and the compactness is poor

Due to the installation, the tubes in the tube bundle cannot be closely arranged

Although the shell and tube heat exchanger has a large volume, the total heat exchange area is small, so the economic effect is poor

[0004] (2) The heat transfer coefficient is small and the efficiency is low

After a lot of research and improvement, although the heat transfer coefficient of the shell and tube heat exchanger has been improved, it is at the cost of increasing the pressure loss, and the overall efficiency is still very low.

[0005] (3) Poor reliability

Tube bundle vibrations are likely to occur at high flow rates, causing tube ruptures, damage to equipment foundations and pipelines, and noise at the same time. It is difficult to control and prevent vibration through theoretical calculations.

Although some new anti-vibration structures have been developed in engineering applications, the effect is not ideal

[0006] (4) The production cycle is long and the metal consumption is large

Using a CNC drilling machine, the drilling cycle is about 25 days, and the production cycle is long; the amount of chips can reach several tons or even dozens of tons, and the waste of materials is relatively large.

[0007] (5) It is difficult to assemble, overhaul and maintain

The distance between the tubes is small, it is not easy to install testing instruments, and it is impossible to detect and maintain local dangerous parts

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