Slotted partition plate structure for reducing temperature difference between tube plates and heat exchanger

Abstract

The invention relates to a slotted partition plate structure for reducing the temperature difference between tube plates and a heat exchanger, the slotted partition plate structure for reducing the temperature difference between the tube plates comprises a partition plate body, a plurality of first through holes are formed in the partition plate body, and heat exchange tubes penetrate through the first through holes; a groove part is formed in one side surface of the partition plate body and can allow fluid to flow in. The slotted partition plate structure used for reducing the temperature difference of the tube plate abuts against and is tightly attached to the side, close to a shell pass, of the tube plate, flowing of a medium on the shell pass side is limited at the groove part, and even a dead zone is formed in the groove part, so that the heat resistance on the shell pass side is greatly improved, the temperature difference between the two sides of the tube plate is reduced, the heat stress of the tube plate is reduced, and the structural strength of the heat exchanger tube plate is improved.

Description

technical field [0001] The invention relates to the technical field of heat exchangers, in particular to a slotted separator structure and a heat exchanger for reducing the temperature difference of a tube sheet. Background technique [0002] The heat exchanger has a solid structure, simple manufacture and high reliability, and is widely used in petrochemical plants. Among the various parts of the heat exchanger, the tube sheet is the most important and the most complicated part. Its function is to arrange the heat exchange tubes, divide the tube side and the shell side fluid, avoid the mixing of cold and hot fluids, and at the same time be affected by the tube side, shell side fluid. The effects of side pressure and thermal stress caused by the temperature difference between the tube and shell side. [0003] During the normal operation of the equipment, thermal stress has a greater impact on the tube sheet, especially when the operating temperature difference between the t...

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Problems solved by technology

[0003] During the normal operation of the equipment, thermal stress has a greater impact on the tube sheet, especially when the operating temperature difference between the tube side and the shell side is relatively large, the temperature difference stress value of the heat exchanger tube sheet increases, and when superimposed with the pressure stress, it exceeds many When the stress value is used, plastic deformation may occur, affecting the normal use of the tube sheet

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