Heat Exchangers FHC060 Exporters
Maintenance of the axial flow fan of the heat exchanger: 1. Check the centering of the heat exchanger and the belt tension. 7. Eliminate defects such as gas channel leakage points. Clean the dirt, especially the dirt on the blades. Check and tighten the anchor bolts of each heat exchanger. 6
The heat exchange unit has a complex structure and many parts, so the precision of disassembly and assembly is very high. For example, if the thread is stuck in the middle of disassembly and assembly, it will cause serious consequences. Due to the complexity of the maintenance process and the relatively high technical difficulty, the maintenance plan should be carefully formulated before the maintenance.
Therefore, the heat exchange unit should be strictly aligned with precision during installation, and handled reasonably to avoid such failures..The maintenance procedures of the heat exchange unit are divided into disassembly, maintenance, and installation steps. The maintenance plan of the heat exchange unit should be correct, reasonable, specific and detailed, and discuss and study with the technicians to ensure the smooth progress of the maintenance work
After the tube bundle is in place, measure the axial and radial positions of the heat exchanger tube bundle and compare with those before disassembly to confirm whether the shell side gasket is installed correctly, and then carefully remove the gasket protection frame. The outer rear building or saddle bracket of the heat exchanger can be used Heat Exchangers FHC060 Exporters to axially lock the shell with steel wire rope and electric hoist core pulling machine. The installation method of the tube bundle is opposite to the core-pulling scheme.Before installing the heat exchanger tube bundle, check that the gasket on the sealing surface is installed properly.
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Inlet valve, and then slowly open the outlet valve of cold and hot medium at the same time. When the pressure difference between the front and rear of the filter is large, the filter can be disassembled for cleaning. Cleaning the filter too frequently can also cause the stainless steel plate heat exchanger to fail due to blockage of the plate passages.
Filter cleaning of plate heat exchanger In order to reduce the frequency of maintenance and cleaning of the titanium plate heat exchanger, a coarse filter is generally installed on the inlet pipeline of the cold and heat medium to prevent 3 to 5 mm particles from blocking the plate passage.When the titanium plate heat exchanger is put into use for the first time, in order to avoid the leakage of the plate heat exchanger caused by excessive pressure fluctuations, the cold and hot medium water inlet valve must be opened slightly Heat Exchangers FHC060 Exporters at the same time, and the pressure in the heat exchanger is slowly increased until it is fully opened. Blindly opening and closing water inlet and outlet valves or medium pressure fluctuations caused by other reasons may cause leakage of the stainless steel plate heat exchanger
In order to meet market demand, unify the order and improve the standard, this revision adds TA9 Tihe## to this standard.. But this standard only stipulates the various technical requirements of TA1-A, and now the market uses TA8-1 and TA9-1 grades of titanium alloy plate heat exchanger materials more and more, and TA8-1 and There is no standard for TA9-1 titanium alloy heat exchanger plates. The fluid flow rate, physical properties, pressure drop and temperature difference determine the number and size of the plates
In the work of the plate heat exchanger, the working environment is very complicated. For example, using a good plate heat exchanger material will improve the heat exchange efficiency of the heat exchanger, so the value of the heat exchanger itself is also Be reflected. Good materials are more resistant to corrosion, which can not only reduce material loss, but also avoid the time wasted when the plate heat exchanger is repaired. Therefore, we must make a selection when selecting materials
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