Heat Exchanger Manufacturer: Common Maintenance and Inspection Methods for Heat Exchanger Units
Release Time:
2020-12-18 16:53
Source:
Heat Exchanger Manufacturer Heat Exchange Unit Small size and small footprint. However, heat exchange units, as heat exchange equipment, also have certain risks. After a period of use, they need to be overhauled. So how to Heat Exchanger Manufacturer Heat Exchange Unit overhaul it? Let me briefly introduce it to you below.
Heat Exchanger Manufacturer Heat Exchange Unit Common maintenance and overhaul methods:
During the overhaul of the heat exchange unit, it should be noted that the heat exchanger plates and gaskets must meet the corrosion resistance requirements of the heat exchange medium. Select appropriate plate and gasket materials for different media fluids. The main contents include disassembly, plate cleaning or replacement, sealing gasket replacement, and heat exchanger installation. If the plates are deformed or perforated due to corrosion, new plates need to be replaced; when cleaning the plates, care should be taken not to use carbon steel brushes for mechanical cleaning to avoid scratches on the plate surface, which will accelerate the corrosion of the plates. Chemical cleaning agents are usually used for cleaning, and different chemical cleaning agents are used for different types of fouling; using correct Heat Exchanger Manufacturer Heat Exchange Unit maintenance and overhaul methods can better prevent heat exchanger failures, increase the service life of heat exchange equipment, and ensure Heat Exchanger Manufacturer Heat Exchange Unit more reliable operation. The specific operations are as follows:
1 、core extraction, Heat Exchanger Manufacturer Heat Exchange Unit use a special core extraction machine to extract the tube bundle in the shell;
2 、clean, sweep, and clean the tube bundle, and check the deformation and bending of the heat exchange tubes;
3 、check Heat Exchanger Manufacturer Heat Exchange Unit the corrosion and rust of the baffle plates and tie rod bolts;
4 、tube-side and shell-side cleaning. Here, tube bundle cleaning refers to the overall cleaning with high-pressure water after the tube bundle is extracted, which is generally carried out in a special area. Shell-side cleaning is much easier than tube bundle cleaning and is generally carried out at the repair site;
5 、tube bundle reinstallation, leak detection by pressure test, and leak plugging. Tube bundle reinstallation is generally carried out using a core extraction machine;
6 、when Heat Exchanger Manufacturer Heat Exchange Unit the number of blocked tubes reaches 10 percent of the single-pass tubes in the tube side, the tube bundle should be updated.
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