Elbow baffling structure of nuclear power plant heat exchanger

Abstract

The invention discloses an elbow baffling structure of a nuclear power plant heat exchanger. The elbow baffling structure comprises a plurality of heat exchange tubes, a heat exchange shell pass whichis provided with a plurality of elbows and arranged outside the heat exchange tubes in a sleeving mode, and a baffling body which is arranged in the elbows and used for fixing the heat exchange tubes, wherein the baffling body comprises a positioning ring connected with the inner walls of the elbows, and a baffling plate closing the inner side of the positioning ring; the baffling plate is formedby splicing a plurality of baffling sheets; and the sides, close to each other, of every two adjacent baffling sheets are provided with a plurality of clamping grooves which correspond in a one-to-one mode and are used for fixing the heat exchange tubes correspondingly. Compared with the prior art, according to the elbow baffling structure of the nuclear power plant heat exchanger, by splicing the multiple baffling sheets into the baffling plate, the heat exchange tubes are washed by a shell pass medium laterally, and the heat exchange efficiency is improved; and the baffling sheets are provided with the clamping grooves for fixing the heat exchange tubes, thus, the heat exchange tubes cannot move radially, abrasion or deformation of the heat exchange tubes due to radial movement is avoided, thus, the product quality is improved, and the service life is prolonged.

Description

technical field [0001] The invention belongs to the technical field of heat exchangers, and more specifically, the invention relates to a baffle structure of an elbow pipe of a heat exchanger of a nuclear power plant. Background technique [0002] At present, multiple baffles are usually installed in the heat exchanger, so that the heat exchange medium in the heat exchanger can flush the heat exchange tubes horizontally, so as to obtain a higher heat exchange system to improve the heat exchange effect, and reduce costs and At the same time, the baffle can also support the heat exchange tube, which can effectively prevent the deformation of the heat exchange tube or the structural damage caused by vibration. [0003] However, in special industries, such as the nuclear power industry, U-shaped heat exchangers are usually used due to space constraints, thus facing the problem that it is difficult to fix the heat exchange tubes in the bent tubes of the U-shaped heat exchanger. ...

AI Technical Summary

Problems solved by technology

[0003] However, in special industries, such as the nuclear power industry, U-shaped heat exchangers are usually used due to space constraints, thus facing the problem that it is difficult to fix the heat exchange tubes in the bent tubes of the U-shaped heat exchanger. The grid bars are installed in the elbow to fix the heat exchange tube, that is, the heat exchange tube is clamped between the two grid bars to form a fixed position, so that the heat exchange tube can still move along the grid bars and cause wear, and the heat exchange medium cannot flow in the elbow tube. Medium and horizontal scour heat exchange tubes, low heat exchange efficiency

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