Discontinuous spiral baffle plate heat exchanger for cooling compressed air

Abstract

The invention provides a discontinuous spiral baffle plate heat exchanger for cooling compressed air, which can solve the problems that the existing spiral baffle plate heat exchanger has a flow leakage phenomenon, the heat exchange efficiency of a center area is low, and the machining difficulty is large. The heat exchanger comprises a cylindrical outer shell, tube plates are fixedly connected tothe two ends of the outer shell, a tube box is connected to the outer side of the tube plate, a spiral baffle plate and a heat exchange tube bundle are arranged in the outer shell in the axial direction, and the heat exchange tube bundle penetrates through the spiral baffle plate and the tube plate to be communicated with the tube box. The heat exchanger also comprises an inner shell which is coaxially arranged with the outer shell and is cylindrical, the two ends of the inner shell are fixedly connected with the two tube plates respectively, and the diameter ratio of the outer shell to the inner shell is 2:1-5:1; the spiral baffle plate is fixedly arranged between the outer shell and the inner shell, the spiral baffle plate is formed by spirally arranging at least four fan-shaped flat plates, and the edges of the axial projections of every two adjacent fan-shaped flat plates coincide with each other along the outer shell.

Description

technical field [0001] The invention relates to the field of heat exchange equipment, in particular to a discontinuous spiral baffle heat exchanger for cooling compressed air. Background technique [0002] According to the "Prospect of China's Compressed Air Drying and Purification Industry Production and Marketing Demand and Transformation and Upgrading Analysis Report", compressed air is the second largest power energy after electricity, and its application range covers biological fermentation, petroleum, chemical, food, pharmaceutical and other industries and department. However, since the compressed air contains a large amount of water, it cannot be used directly. Therefore, it is often necessary to cool it to remove water and then reheat it to make a qualified gas. The cooling of the compressed air can use a heat exchanger. [0003] In traditional shell-and-tube heat exchangers, due to baffle blocking and other reasons, on the leeward side of the connection between the...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the technical problems of existing spiral baffle heat exchangers such as leakage, low heat transfer efficiency in the central area, and high processing difficulty, the present invention provides a discontinuous spiral baffle heat exchanger for compressed air cooling, which It can avoid the occurrence of leakage of the shell-side fluid during the flow process, effectively reduce the area with low heat transfer efficiency in the center, and improve the heat transfer efficiency of the heat exchanger. At the same time, the processing is simple and the assembly is convenient

Images