Description of specific requirements for maintenance of plate heat exchanger_
How to better maintain and maintain the plate heat exchanger in 503? In addition to mastering certain methods and skills, it is also necessary to operate in accordance with the prescribed standards. Then do you know which requirements should be met for the maintenance and maintenance of plate heat exchangers? Let's learn more about it below! Various types and types of heat exchangers are developing rapidly, and heat exchangers with new structures and new materials are constantly emerging. In order to meet the needs of development, my country has established standards for certain types of heat exchangers and formed a series. A perfect heat exchanger should meet the following basic requirements when designing or selecting: reasonable realization of the specified process conditions; safe and reliable structure; easy manufacturing, installation, operation and maintenance; economically reasonable. The maintenance requirements for the plate heat exchanger are as follows: 1. The heat exchanger must be installed vertically, and all lower connecting pipes should be installed with discharge ports and valves at the lower positions; keep heat preservation as much as possible as needed; reserve space for maintenance. 2. When starting up, make sure that the outlet valves of the fluid on both sides are opened; first slowly open the cold side fluid valve to allow the cold fluid to circulate, and then slowly open the hot fluid valve. Try to avoid excessive pressure fluctuations during the operation, and when shutting down First close the hot fluid inlet valve and then the cold fluid inlet valve, and operate slowly. 3. When shutting down, make sure to drain the residual liquid in the channels on both sides (open the drain at the bottom of the pipe), and check whether the inlet valve is tightly closed. 4. When using steam single-channel disinfection, the other side of the channel must ensure that the liquid is drained cleanly without residue, and the steam valve must be opened slowly. 5. Before disassembling the machine, measure the distance between the two frame splints and record the clamping size; when disassembling the machine, stand directly behind the column to remove and hang the plates with both hands to avoid deformation due to uneven force and tilt. The corners are evenly loosened and clamped. The clamping size must be appropriate and not too tight; the plates and rubber strips at special positions should be marked to avoid being unable to be replaced as they are; when cleaning the plates, the sealing rubber strips should be removed and cleaned separately. Use iron brush and corrosive liquid to soak; the rubber strip cannot be displaced when it is hung back to the plate (you can add a proper amount of glue to fix it, and the glue should not be too much and run outside the rubber pad). The above are the specific requirements for the maintenance of the plate heat exchanger. If you are interested, please read the above. For more information about the maintenance of plate heat exchangers, please visit the official website of Diguang Heat Transfer. Welcome everyone to browse and read.