Tube row arrangement and tube type selecting optimization method for horizontal shell-and-tube cooler

Abstract

The invention discloses a tube row arrangement and tube type selecting optimization method for a horizontal shell-and-tube cooler. An upper heat transfer tube of the tube row of the horizontal shell-and-tube cooler is a three-dimensional reinforcing heat transfer tube, while a lower heat transfer tube is a low-rib tube, and the upper and lower heat transfer tubes are arranged in different row distances. Compared with the arrangement mode of the conventional tube row, the method is characterized in that 1), different heat transfer tube types are adopted at different positions to fit for the different heat transfer tubes to play different roles in heat transfer; 2), the different tube types adopt different arrangement heights to fully develop the advantages of the different reinforcing heat transfer tubes; and 3), the different tube types are arranged in different distances comprising transverse distance and longitudinal distances to reduce the sensitivities of the different heat transfer tubes to the tube row heights. The method replaces the primary heat exchanger by only adopting a transverse and longitudinal tube row distance based on the shell side size of the primary heat exchanger; and the consumption of a copper material is saved by nearly 1 / 5 compared with the past by the method purely adopting the heat transfer tube, and the heat exchange amount is slightly improved based on the primary heat exchange amount requirement.

Description

technical field [0001] The invention relates to a method for tube arrangement and tube type selection of a horizontal shell-and-tube condenser, in particular to an optimization method for tube arrangement and tube type selection of a horizontal shell-and-tube condenser. Background technique [0002] The shell-and-tube condenser is a key heat exchange component in a large-scale refrigeration and air-conditioning system. The heat exchange efficiency of the condenser directly affects the efficient operation of the entire refrigeration unit. Therefore, designing a high-performance condenser is an effective way to improve the overall performance of the refrigeration system. [0003] The disadvantage of the tube row layout method currently used in the horizontal shell-and-tube condenser is that the horizontal and vertical spacing of the tube rows in different tube passes are consistent, and the spacing is small, which is not conducive to efficient heat exchange for each enhanced he...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the disadvantages of the existing condensers such as simple and compact arrangement of tube rows, single selection of tube types, large consumption of non-ferrous metal copper, and low heat transfer efficiency, and to provide a highly efficient and compact horizontal shell-and-tube condenser Tube row arrangement and tube type selection optimization method to improve the overall performance of the shell-and-tube condenser, while saving copper consumption and simplifying the processing difficulty of the tube type

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