Vertical heat exchanger with convex thin tube sheets

Abstract

The invention discloses a vertical type heat exchanger with a convex light wall pipe plate. An upper pipe box is arranged on a profiled flange; a circular groove is arranged on a lower end of the profiled flange; the upper pipe plate is connected onto the profiled flange; the profiled flange is connected with a shell pass barrel through an upper conical transition section; the shell pass barrel is connected with a lower pipe plate through a lower conical transition section; a lower pipe box is fixedly connected onto the lower pipe plate; a pipe pass gas outlet pipe is arranged on a top part of the upper pipe box; a shell pass heat state medium outlet pipe is arranged on a side face of the upper conical transition section; a pipe bundle is connected between the upper pipe plate and the lower pipe plate; a liquid collector pipe is arranged on a bottom part of the lower pipe plate; a shell pass heat state medium inlet pipe is arranged on a side face of the liquid collector pipe; a pipe pass cold state medium inlet pipe is arranged on a bottom part of the lower pipe box; the heat exchanger is supported through lug supports on two sides of the shell pass barrel. The vertical type heat exchanger with the convex light wall pipe plate is applied in occasions with high temperature, high voltage and larger pipe shell pass temperature difference, is reliable in connection, long in equipment service life, less in equipment consumables, light in weight, and convenient to process; cleaning is convenient since the upper pipe box and the lower pipe box are detachable; the occupied space is small as a vertical type structure is adopted.

Description

technical field [0001] The invention relates to a vertical heat exchanger, in particular to a vertical heat exchanger with a convex thin tube sheet. Background technique [0002] As a typical process equipment, heat exchanger has been widely used in chemical industry, petroleum, power, food and other industrial sectors, and plays an important role in the production process. Its reasonable selection has great influence on product quality, energy utilization rate and production economy. Safety and security are of great importance. In the face of increasingly stringent process requirements and complex working environment, the limitations of traditional heat exchangers have become increasingly prominent, and the development of new high-efficiency heat exchangers is an important direction of current heat exchanger research. [0003] The tube sheet is one of the main components of the heat exchanger and plays the role of supporting the heat exchange tubes. The traditional heat e...

AI Technical Summary

Problems solved by technology

In actual chemical production, thick and flat tube sheets are widely used, which will generate large temperature difference stress in the case of large temperature difference. On the one hand, large temperature difference stress will easily cause stress corrosion and fatigue damage at the joint between heat exchange tube and tube sheet. Lead to leakage failure at the connection between the heat exchange tube and the tube sheet; on the other hand, excessive temperature difference stress may lead to increased thermal fatigue of the tube sheet and large thermal deformation, thereby reducing the service life and safety of the equipment

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