Heat exchanger with supporting plates

Abstract

The invention provides a heat exchanger with supporting plates. The heat exchanger comprises a cylindrical tube body provided with an accommodating cavity. A medium cavity is arranged at one end of the tube body, a cold fluid inlet is arranged in the top of the medium cavity, a hot fluid inlet is arranged in the top of the other end of the tube body, and a cold fluid outlet and a hot fluid outlet are sequentially arranged in the bottom of the tube body. The heat exchanger further comprises a heat exchange tube bundle and tube plates, wherein the heat exchange tube bundle and the tube plates are accommodated in the tube body. The heat exchange tube bundle is formed in the method that a plurality of heat exchange tubes are arrayed and combined regularly, and all the heat exchange tubes are communicated with the medium cavity through the tube plates. The heat exchanger is characterized in that at least two cylindrical supporting plates are accommodated in the tube body, and each heat exchange tube penetrates through the supporting plates in an inserted mode. According to the heat exchanger with the supporting plates, a plurality of supporting points are provided for the heat exchange tubes, heat stress resistance of the heat exchange tubes is improved, and therefore the problems that the heat exchange tubes are bent, broken and pulled off from the tube plates because the heat exchange tubes can not bear the heat stress between media are solved.

Description

technical field [0001] The invention relates to a heat exchange device suitable for fluid-fluid, in particular to a heat exchanger with a support plate. Background technique [0002] A heat exchanger is an energy-saving device that transfers heat between materials between two or more fluids at different temperatures. It transfers heat from a higher fluid to a lower temperature fluid so that the fluid temperature reaches the process level. The specified indicators can meet the needs of process conditions and can improve energy utilization. They are widely used in chemical, petroleum, power, food and other related departments, and play an important role in production. [0003] In order to increase the heat transfer area, the heat exchange tube is often designed as a bent tube or the number of heat exchange tubes is increased, and the length of the heat exchange tube is changed. The heat exchange tube is tightly supported by the tube sheets at both ends in the tube body, and th...

AI Technical Summary

Problems solved by technology

[0003] In order to increase the heat transfer area, the heat exchange tube is often designed as a bent tube or the number of heat exchange tubes is increased, and the length of the heat exchange tube is changed. The heat exchange tube is tightly supported by the tube sheets at both ends in the tube body, and there is no support point in the middle. , when the temperature difference between the two fluids reaches above 40°C, the heat exchange tubes are prone to bending, breaking and other defects due to the unbearable thermal stress between the media, and may be pulled off from the tube sheet

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