Fin type heat exchanger

Abstract

The invention discloses a fin type heat exchanger, and relates to the technical field of heat exchangers, in particular to a reinforced jet flow type heat exchanger. Comprising a tube box, a tube plate, a barrel, heat exchange tubes, baffle plates, a pull rod and a pipe spacer, the barrel is transversely arranged, the tube box, the tube plate and the barrel are sequentially connected, the axes of the tube box, the tube plate and the barrel are the same, the heat exchange tubes and the pull rod are fixedly connected to the tube plate, the baffle plates and the pipe spacer are connected to the pull rod in a sleeving mode, and the distance between the baffle plates is determined through the pipe spacer; the heat exchange tubes comprise light tubes, fins and supporting rings, the multiple fins are circumferentially distributed and fixedly connected to the outer walls of the light tubes, the supporting rings are fixedly connected to the fins, and the heat exchange tubes are supported through the supporting rings; and the baffle plate is a whole annular plate. The outer fins are adopted for enhancing heat transfer, and the size of the heat exchanger is reduced; fluid induced vibration is effectively eliminated, and the abrasion of the tube bundle is reduced; and meanwhile, due to the self-cleaning effect of the turbulent flow, dirt is not easy to deposit.

Description

technical field [0001] The invention relates to the technical field of heat exchangers, in particular to a fin heat exchanger. Background technique [0002] Existing heat exchangers use baffles or support plates as the supporting structure of the tube bundle, and the fluid cross-flows through the tube bundle multiple times according to the specified path to improve the heat transfer coefficient of the shell side. However, since the fluid needs to pass across the tube bundle many times, the scouring direction is changed repeatedly, and the scouring angle is roughly vertical, so the flow resistance of the fluid is very large, there is a flow dead zone locally, and it is easy to cause induced vibration, causing the heat exchange tube Vibration wear, eventually leading to leakage of heat exchange tubes. [0003] The heat exchange tube of the existing heat exchanger adopts a bare tube, and the heat exchanger has a large volume and high cost. Contents of the invention [0004]...

AI Technical Summary

Problems solved by technology

However, since the fluid needs to pass across the tube bundle many times, the scouring direction is changed repeatedly, and the scouring angle is roughly vertical, so the flow resistance of the fluid is very large, there is a flow dead zone locally, and it is easy to cause induced vibration, causing the heat exchange tube Vibration wear, which eventually leads to leakage of heat exchange tubes

[0003] The heat exchange tube of the existing heat exchanger adopts a light tube, the heat exchanger is large in size and high in cost

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