Internal and external dual-spiral-flow centrifugal separation type heat exchanger

Abstract

The invention provides an internal and external dual-spiral-flow centrifugal separation type heat exchanger. The internal and external dual-spiral-flow centrifugal separation type heat exchanger mainly aims at solving the problem that the heat exchange efficiency of cold and hot media is low, and is especially suitable for heat exchange of vapor-liquid two-phase media. The internal and external dual-spiral-flow centrifugal separation type heat exchanger is characterized in that the device has an internal spiral channel structure and an external spiral channel structure; an internal branch pipe (2) is arranged in an inner pipe (4) of a straight pipe section, a set of internal spiral pieces (3) are fixed around the inner branch pipe, and the outer edges of the internal spiral pieces make contact with the inner wall of the inner pipe (4) of the straight pipe section; a set of external spiral pieces (5) are fixed around the outer wall of the inner pipe (4) of the straight pipe section, and the outer edges of the external spiral pieces make contact with the inner wall of an outer pipe (6) of the straight pipe section. After the heat exchange device and a medium accelerator are used in cooperation, internal and external dual-spiral-flow continuous flow of the cold and hot media can be achieved, the heat exchange temperature difference and the heat exchange area are increased, vibration is lowered, and the heat exchange effect between the media is effectively improved.

Description

technical field [0001] The invention relates to a heat exchanger for heat exchange of cold and hot media used in the petrochemical industry, and is particularly suitable for heat exchange of vapor-liquid two-phase media. Background technique [0002] As a general-purpose thermal process equipment, heat exchangers are widely used in many industrial sectors such as oil refining, chemical industry, environmental protection, power generation, refrigeration, food processing, and new energy utilization. In view of the important role of heat exchangers in industrial production, improving their performance and efficiency has become an important way to save energy and reduce emissions, which will produce significant social and economic benefits. However, many heat exchangers still have the problems of insufficient heat exchange between media, low heat exchange area, small heat exchange temperature difference between cold and hot media, and poor heat exchange efficiency. Contents of...

AI Technical Summary

Problems solved by technology

However, many heat exchangers still have the problems of insufficient heat exchange between media, low heat transfer area, small heat transfer temperature difference between cold and hot media, and poor heat transfer efficiency.

Images