Analysis on the cleaning scheme of the circulating water system in the central air-conditioning fan coil
1. Cleaning conditions: Before cleaning, prepare medical personnel and analytical instruments in place, and prepare special cleaning pharma machinery. 2. Cleaning equipment and process: self-made small circulating pipeline system, self-made sealed water tank, plus pipeline circulating pump, the water inlet and outlet of the circulating pump are connected with the water supply and return port of the central air-conditioning fan coil. After the water tank is filled with water, mix the liquid medicine according to a certain proportion, and seal the water tank; turn on the power to make the liquid medicine circulate in the fan coil water system, after 30 minutes of circulation, check whether the pipe meets the requirements of removing the fouling, if not. If required, connect it again to continue the cycle until there is no scale in the pipe and the requirement is met. 3. Rinse: first remove the solid impurities in the system with clean water, and pre-wash until the water is clear and transparent. Simultaneously measure the system volume. 4. Cleaning agent: This agent is a chemical agent, which is used for the normal descaling, anti-scaling and descaling of the system. Through a special chemical reaction, it can completely dissolve all kinds of insoluble scales such as sulfate scale, silicate scale, oxide scale, iron oxide scale, copper oxide scale, oil scale, rust, rust in the system. The cleaning property is mild, the operator is safe, and the previous cleaning and corrosion phenomenon will not occur, the normal operation of the system will not be affected, and the phenomenon of dirt blocking will not occur. 5. Corrosion inhibitor treatment. 6. Finally, rinse with clean water: the purpose of water rinsing is to rinse off the solid peelings and the residual liquid of the sterilizing cleaning solution in the system after cleaning. 7. Install and restore the original water system of the central air-conditioning fan coil. 8. Pressure test 9. Restore the original decoration state of the ceiling. 10. Clean up the site, and the cleaning is over.
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