Manufacturing and overturning device for heat exchanger tube bundle assembly

Abstract

The invention provides a manufacturing and overturning device for a heat exchanger tube bundle assembly. The manufacturing and overturning device comprises a pedestal, a supporting piece and a fixingpart, wherein the supporting piece and the fixing part are connected with the pedestal. By means of the manufacturing and overturning device, the whole tube bundle assembly can be manufactured, the device and the tube bundle assembly can be overturned by 90 degrees, the purpose of erecting the tube bundle assembly is achieved, and vertical-type sleeving of the tube bundle assembly and a shell canbe completed smoothly. The manufacturing and overturning device is novel in structure and high in practicability and universality, tube bundle assembly manufacturing and shell sleeving can be integrated, manufacturing efficiency of a heat exchanger is greatly improved, and manufacturing difficulties of the heat exchanger are lowered.

Description

technical field [0001] The invention relates to the field of manufacturing shell-and-tube heat exchangers, in particular to a device for assisting the manufacture of tube bundle assemblies and tube bundle erection of the shell-and-tube heat exchanger. Background technique [0002] Heat exchangers are widely used in industrial fields such as chemical industry, petroleum, nuclear energy and power, among which shell-and-tube heat exchangers are the most commonly used. A shell and tube heat exchanger consists of a tube bundle assembly and a shell. The main part of the heat exchanger is the tube bundle assembly. The common tube bundle assembly is composed of tube sheets, baffles, heat exchange tubes, tie rods and other parts. Due to the long service life of the heat exchanger, the maintenance is difficult, and the requirements of the manufacturing process for each process It is relatively strict and requires high precision, requiring specific process equipment to support the tub...

AI Technical Summary

Problems solved by technology

[0004] After the tube bundle assembly is manufactured, the heat exchanger shell needs to be installed horizontally. However, when the tube bundle assembly is long and heavy, the horizontal assembly shell has the following difficulties and disadvantages: 1. During the assembly process, the tube bundle assembly will be separated from the The shell produces a large friction force, and the shell is difficult to introduce; 2. There is only a small gap between the baffle and the inner wall of the shell, and it is difficult to adjust the shell during the introduction process; The surface flatness and cylindricity requirements are high, and the shell is spliced ​​by multi-section cylinders, and there will be misalignment at the butt joints of the cylinders. Although it can meet the manufacturing standards, it is difficult to meet the requirements of horizontal packaging; 4. When the tube bundle assembly is shelled It will be pressed on the inner wall of the shell by its own weight, and there is a risk of deformation of the baffle, scratching the inner wall of the shell, or even being stuck with the shell

[0005] If the tube bundle assembly is used to set the shell vertically, it can not only avoid the adverse effects of the tube bundle assembly’s own weight, but also flexibly adjust the gap between the shell and the tube bundle assembly to avoid the above difficulties. However, the tube bundle assembly has certain flexibility and is very difficult to erect

If it is lifted directly, the tube bundle will be bent and deformed to damage the heat exchange tube, and it will also have an adverse effect on the weld

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