Novel baffle-rod longitudinal-flow shell-and-tube heat exchanger

Abstract

The invention provides a novel baffle-rod longitudinal-flow shell-and-tube heat exchanger. The novel baffle-rod longitudinal-flow shell-and-tube heat exchanger comprises a heat exchange tube (5) and a plurality of groups of baffle rods (7), wherein the heat exchange tube (5) and the plurality of groups of baffle rods (7) are positioned in a shell (8), the plurality of groups of baffle rods (7) are uniformly distributed and are arranged at intervals, and each group of baffle rod can rotate around the elliptical cylinder axis of the baffle rod. According to the novel baffle-rod longitudinal-flow shell-and-tube heat exchanger, by regulating the baffle rods of the special structure, the flowing state of a shell-pass fluid can be changed, and the heat exchange capability of the heat exchanger can be regulated within a certain range; in the condition that fluid inlet conditions cannot be changed, the baffle rods of the special structure are rotated, the turbulence intensity of the shell-pass fluid is changed, and parameters of temperature, pressure and the like of a fluid outlet are regulated, so that the requirements of different working conditions in practice are satisfied. The novel baffle-rod longitudinal-flow shell-and-tube heat exchanger has the advantages of simple structure, convenience in regulation, wide application range and the like.

Description

technical field [0001] The invention relates to a longitudinal flow shell and tube heat exchanger, in particular to a baffle bar longitudinal flow shell and tube heat exchanger with adjustable heat exchange capacity within a certain range. Background technique [0002] As a kind of heat exchange equipment, heat exchanger has been widely used in chemical industry, aerospace, refrigeration, air conditioning, metallurgy and other industries. Compared with other types of heat exchangers, shell and tube heat exchangers have the characteristics of mature technology and reliable structure, and are most widely used in industry. Based on the difference in the direction of fluid movement in the tube side and the shell side, shell and tube heat exchangers can be divided into cross flow and longitudinal flow heat exchangers. Due to the long development time and mature preparation process of cross-flow shell-and-tube heat exchangers, most of the shell-and-tube heat exchangers used in in...

AI Technical Summary

Problems solved by technology

[0004] However, most of the structures of traditional heat exchangers are fixed, and the parameters of the fluid outlet can only be adjusted by changing the fluid inlet conditions. It is determined, which limits the application of heat exchangers to a certain extent

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