Heat Exchanger

Abstract

The invention provides a heat exchanger (100, 100', 100'' or 100''') which comprises a housing (110), a baffle (120), a cold material tube (130 or 130''), a hot material tube (140 or 140''), at least a first communication device (160 or 160') and a second communication device (150), wherein the baffle (120) is arranged in the housing and used for dividing the internal space of the housing into upper and lower medium distribution chambers (111 and 112) filled with heat exchange mediums respectively; the cold material tube (130 or 130'') and the hot material tube (140 or 140'') are arranged in the upper medium distribution chamber and the lower medium distribution chamber respectively; cold and hot materials are suitable for being conveyed to pass through the cold and hot material tubes respectively to exchange heat with the heat exchange mediums; the at least a first communication device (160 or 160') and the second communication device (150) are used for communicating the two medium distribution chambers; the heat exchange medium in the upper medium distribution chamber exchanges the heat with the cold material conveyed in the cold material tube to be cooled and enters the lower medium distribution chamber through the second communication device; and the heat exchange medium in the second medium distribution chamber exchanges the heat with the hot material conveyed in the hot material tube to be heated and enters the upper medium distribution chamber through the first communication device. Therefore, all the cold and hot materials flow in a tube pass; and a shell pass is filled with impurity-free clean fluid, so that the problem of high possibility of blockage of impurity fluid in a heat exchange process is effectively solved.

Description

technical field [0001] The present invention relates to heat exchangers, and in particular, to heat exchangers suitable for heat exchange of impurity-containing fluids used in high temperature and high pressure applications. Background technique [0002] A heat pipe is a heat transfer element that relies on the phase change of its internal working liquid to transfer heat. Heat pipe technology is a heat transfer element called "heat pipe" invented by George Grover of the Los Alamos National Laboratory in the United States in 1963. It makes full use of the principle of heat conduction and refrigeration medium. The rapid heat transfer properties of the heat pipe quickly transfer the heat of the heating object to the heat source, and its thermal conductivity exceeds that of any known metal. [0003] At present, heat exchangers used in high-temperature and high-pressure occasions are usually sleeve-and-tube heat exchangers or shell-and-tube heat exchangers. There are multiple pi...

AI Technical Summary

Problems solved by technology

However, when the tube side and the shell side of the casing-and-tube heat exchanger or the shell-and-tube heat exchanger contain fluid containing impurities, it is easy to be blocked and difficult to clean due to the many dead ends in the shell side.

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