Novel heat exchanger impingement baffle

Abstract

The invention discloses a novel heat exchanger impingement baffle. The impingement baffle comprises a pipe plate. The lower end of the pipe plate is provided with a shell side cylinder, the two edgesof the inner side of the shell side cylinder are symmetrically provided with heat exchange pipes, and anti-impact check rods are symmetrically arranged on the sides, away from the shell side cylinder,of the symmetrically-arranged heat exchange pipes. An anti-impact rod is arranged on the portion, between the two symmetrically-arranged anti-impact check rods, of the lower end of the pipe plate, the lower end of the anti-impact rod is provided with an impingement baffle body, the lower end of the impingement baffle body is provided with a baffle plate, and one side of the shell side cylinder isfurther provided with a medium inlet. The novel heat exchanger impingement baffle has the advantages that after the impingement baffle is applied to a heat exchanger, fluid distribution is even, theimpingement baffle can be effectively prevented from falling off, wear and leakage of the heat exchange pipes are reduced, safe and reliable operation of the heat exchanger is guaranteed, and the service life of the heat exchanger is prolonged. The novel heat exchanger impingement baffle is simple in structure, reasonable in design and low in equipment cost and has a good anti-impact effect, and the impingement baffle does not need to be additionally welded.

Description

technical field [0001] The invention relates to the technical field of heat exchangers, in particular to a novel heat exchanger anti-shock plate. Background technique [0002] A heat exchanger is a device used to exchange heat from a medium, and it is widely used in chemical industry, petroleum, oil refining and many other industrial sectors. [0003] For heat exchangers, heat exchange tubes, tube sheets, equipment flanges, heads, shells, expansion joints, etc. are the main pressure components, while other components such as anti-shock devices are used as auxiliary components. In the design and manufacturing process, it is easy to ignore, so that the heat exchanger cannot achieve safe and reliable operation. The anti-shock problem of shell-and-tube heat exchangers has a long history. Setting a reasonable and effective anti-shock structure can prolong the use of the heat exchanger life. [0004] In the prior art, there are multiple rows of heat exchange tubes in the shell o...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, there are multiple rows of heat exchange tubes in the shell of the shell-and-tube heat exchanger, and the anti-shock plate installed at the entrance of the shell is shown in Figure (4), and the anti-shock plate is welded on the shell. Its main defects are: the area of ​​the anti-shock plate is too small; when the shell-side fluid enters, its direction is perpendicular to the anti-scourr plate, and the long-term high-speed movement of the fluid may easily cause the anti-scourr plate to fall off, causing the anti-scourr plate to lose its anti-shock On the other hand, after the anti-scouring plate is added, the fluid will be concentrated at both ends of the anti-scouring plate and enter the tube bundle area. The uneven distribution of the fluid will still cause impact damage to the heat exchange tube, and the pressure drop will increase. Vibration will inevitably lead to the impact of heat exchange tubes and baffle holes and be cut off

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