Detachable shell and tube heat exchanger

Abstract

The invention relates to a detachable shell and tube heat exchanger, which comprises a shell layer, an upper tube plate, a lower tube plate and heat exchange tubes. The upper tube plate and the lower tube plate are arranged at the upper and lower ends of the shell layer respectively; the upper tube plate is provided with upper installation holes into which the heat exchange tubes are arranged; the lower tube plate is provided with lower installation holes into which the heat exchange tubes are arranged; the heat exchange tubes pass through the upper installation holes and the lower installation holes in turn and are arranged in the form of an array; annular grooves are formed in the upper installation holes and the lower installation holes; a seal ring is arranged in each annular groove; and the inner side face of the seal ring is pressed against the outer wall of each heat exchange tube. The detachable shell and tube heat exchanger effectively eliminates the influence of heat stress, has high material applicability, long service life and a wide application range and is convenient to maintain.

Description

technical field [0001] The invention belongs to a shell and tube heat exchanger. Background technique [0002] Heat exchangers (also known as condensers) are commonly used heat exchange components in chemical and other industries. During the working process, each internal part has a certain temperature difference and heat exchange occurs, and the internal heat exchange components will inevitably produce a certain temperature rise or fall process. Since the material has the characteristics of thermal expansion and contraction, the size of each component will inevitably change during the temperature change. [0003] The existing tube-and-tube heat exchanger usually includes a shell, upper and lower tube sheets and heat exchange tubes, the upper and lower tube sheets are respectively installed at the upper and lower ends of the shell, and the shell and the upper and lower tube sheets form a substantially airtight cavity, the upper tube plate is provided with upper installatio...

AI Technical Summary

Problems solved by technology

[0009] In order to overcome the deficiencies of the existing shell and tube heat exchangers, such as large thermal stress influence, poor material applicability, short service life, troublesome maintenance, and small application range, the present invention provides a heat exchanger that effectively eliminates the thermal stress influence and has good material applicability. , long service life, convenient maintenance and a wide range of detachable shell and tube heat exchangers

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