Simple floating heat exchanger pressure test tool

Abstract

A simple floating heat exchanger pressure test tool comprises a heat exchanger barrel, a fixed tube plate, a floating tube plate and a heat exchange tube bundle. A tube box side flange and an outer head cover side flange are welded at two ends of the heat exchanger barrel respectively, the fixed tube plate and the floating tube plate are welded into an integral structure through the heat exchange tube bundle, the outer head cover side flange and the tube box side flange are matched to fix the fixed tube plate at one end of the heat exchanger barrel, the other end of the heat exchanger barrel is provided with a pressure test barrel section with the floating tube plate fixed in the section, the pressure test barrel section achieves connection of the heat exchanger barrel and the pressure test barrel section by means of matching of the tool flange arranged on the pressure test barrel section and the outer head cover side flange, a sealing gasket matched with an annular cutting groove formed in the inner surface of the pressure test barrel section is arranged on the floating tube plate, and an air hole applying pressing force on the sealing gasket is formed in the pressure test barrel section. The test tool avoids traditional welding connection of the pressure test barrel section and the floating tube plate, facilitates disassembly after pressure test and is good in sealing effect in the pressure test process.

Description

technical field [0001] The invention relates to the technical field of pressure testing of heat exchangers, in particular to a simple floating head type heat exchanger pressure testing tooling. Background technique [0002] In the floating head heat exchanger structure, the heat exchange tube bundle and tube head often fail due to leakage, so pressure test and leak detection become a crucial step. Among the existing pressure test equipment, some need to use high-neck flanges, which increases the cost; some pressure test devices have complex structures and high operation requirements; Not only is it cumbersome, but also the welding workload of large-diameter heat exchangers is relatively large, and the recycling rate of tooling equipment is relatively low, which wastes materials and increases manufacturing costs. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides a simple floating head heat exchanger pressure t...

AI Technical Summary

Problems solved by technology

Among the existing pressure test equipment, some need to use high-neck flanges, which increases the cost; some pressure test devices have complex structures and high operation requirements; Not only is it troublesome, but also the welding workload of large-diameter heat exchangers is relatively large, and the recycling rate of tooling equipment is relatively low, which wastes materials and increases manufacturing costs.

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