Designing method of double-tube plate heat exchanger tube plate

Abstract

The invention provides a designing method of a double-tube plate heat exchanger tube plate, and belongs to the technical field of heat exchanger tube plate design. The method mainly comprises the steps that a double-tube plate heat exchanger is dismantled into two fixed-tube plate equivalent heat exchangers, wherein the two fixed-tube plate equivalent heat exchangers include an equivalent externalheat exchanger composed of outer tube plates and inner heat exchange tubes and an equivalent internal heat exchanger composed of inner tube plates and outer heat exchange tubes; then relevant designing calculation is carried out according to regulations of the relevant national standard. In the calculation process, the constraint effect of the inner tube plates and the outer heat exchange tubes on the equivalent cylinder body of the equivalent external heat exchanger is considered for the equivalent external heat exchanger, and the constraint effect of the outer tube plates and the inner heatexchange tubes on the cylinder body of the equivalent internal heat exchanger is considered for the equivalent internal heat exchanger. By means of the designing method of the double-tube plate heatexchanger tube plate, a novel technical scheme is provided for designing calculation of heat exchangers of the type, and a key technical problem obsessing technical workers in the relevant field for along term is solved.

Description

technical field [0001] The invention relates to a design calculation method of a heat exchanger tube sheet, in particular to a design calculation method of a double tube double tube sheet heat exchanger tube sheet. Background technique [0002] Shell-and-tube heat exchangers are widely used in the heat exchange process between hot and cold media in the process industry. Leakage is one of the common faults of heat exchange equipment. For ordinary heat exchangers, once leakage occurs, it will cause The two media are in contact with each other. In the general chemical process, a small amount of leakage of the heat exchanger is usually allowed, but in many special occasions such as polysilicon, organic silicon and fluorine chemical industry, it is required that the two media involved in heat exchange must not be mixed and contacted, otherwise it will endanger the equipment. safety, and even lead to catastrophic accidents. Therefore, those skilled in the related art have develo...

AI Technical Summary

Problems solved by technology

The designed heat exchanger tube sheet often has problems such as insufficient strength and potential safety hazards, or the waste of material selection is too thick.

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