Novel impingement plate structure for heat exchanger

Abstract

The invention relates to a novel impingement plate structure for a heat exchanger. The novel impingement plate structure comprises an inverse V-shaped impingement plate, a rib plate and a stiffener, wherein the inverse V-shaped impingement plate is in a flat plate structure with a V-shaped bulge, and is welded at the lower end of a gas inlet of the heat exchanger through the rib plate; the rib plate is in bar-shaped structure; one end of the rib plate is welded to the inner wall of a shell, and the other end of the rib plate is welded to the horizontal section of the inverse V-shaped impingement plate; the stiffener is welded between the inverse V-shaped impingement plate and the rib plate, so as to realize secondary fixing of the inverse V-shaped impingement plate. When incoming fluid firstly flows into the inverse V-shaped impingement plate, airflow is dispersed by an inverse V-shaped face of the bulge, so that the impact effect on the impingement plate by the airflow is reduced; the inverse V-shaped impingement plate is fixed below the inner wall of the heat exchanger by means of welding the rib plate; the inverse V-shaped impingement plate is fixed by the stiffener for the second time, so that the inverse V-shaped impingement plate is prevented from shaking up and down with pressure vibration, and the concentrated stress at the welding position between the rib plate and the inverse V-shaped impingement plate can be reduced at the same time. Therefore, the impingement plate is prevented from dropping off. The novel impingement plate structure provided by the invention has the advantages of simple structure and convenience for manufacturing.

Description

technical field [0001] The invention relates to an auxiliary element of a heat exchanger, in particular to a structure of an anti-shock plate on the heat exchanger. Background technique [0002] Heat exchangers are common equipment in chemical industry, petroleum, power, food and many other industrial sectors. They play an important role in production. As a key auxiliary component of heat exchangers, anti-shock plates play a very important role in heat exchangers. effect. Anti-shock plates are fixed at the inlet joints of the shell side in the heat exchanger. This is because in the heat exchanger, the density of the gas is much smaller than that of the liquid, and the flow rate of the gas is very high when entering the heat exchanger. If the anti-shock plate is not installed for protection, the gas will directly impact the heat exchange tube, causing The heat exchange tube vibrates strongly. The vibration of the heat exchange tubes will not only cause collisions between a...

AI Technical Summary

Problems solved by technology

At present, the more common anti-shock plates are flat. The medium enters the heat exchanger from the inlet, and the medium flows in the direction of vertical and anti-shock. The anti-shock plate often falls off. The heat pipe, and the falling anti-shock plate will also leak the heat exchange tube on the uppermost layer of the heat exchanger, resulting in a short circuit of the shell side and tube side medium of the heat exchanger, making the heat exchange tube unable to operate normally. Seriously, the heat exchange The tube might be scrapped.

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