The tubular multi effect distilled water machine is a commonly used high-purity water preparation equipment in laboratories and the pharmaceutical industry. Its maintenance requires a systematic operation process, mainly including daily maintenance, regular deep maintenance, and special shutdown maintenance.
1、 Daily maintenance and upkeep
Daily maintenance is the key to avoiding equipment failures and should be carried out before and after daily use, for about 5-10 minutes each time:
1. Equipment cleaning: Regularly clean the appearance of the equipment, including the distiller perimeter and control panel, to keep the equipment clean and tidy. After use, specialized cleaning solution should be used to clean the pipes to ensure that there is no residual dirt.
2. Sealing inspection: Regularly check the sealing performance of components such as water tanks, pumps, valves, etc. If there are leaks, they should be repaired in a timely manner. Check for leaks in flange ports and valves, and ensure that accessories such as pressure gauges, thermometers, safety valves, and level gauges are complete, sensitive, and accurate.
3. Residue cleaning: After the distillation is completed, when the temperature of the distillation tank drops to ≤ 40 ℃, open the residue discharge outlet to release the residue inside the tank. Use a special scraper to clean the hard residue at the bottom of the tank, and then rinse the inner wall of the tank with a clean solvent.
2、 Regular deep maintenance
Regular deep maintenance should be carried out according to the frequency of equipment use, usually at least once a month:
1. Tube cleaning: Use specialized cleaning solution to thoroughly clean the tubes, remove scale and sediment, and maintain heat transfer efficiency. The temperature of the cleaning solution is generally controlled between 25 ℃ and 35 ℃, avoiding the use of highly corrosive agents such as NaOH and NaClO.
2. Component inspection: Check the heat exchanger body for leakage, vibration, shell deformation, and other conditions. Check the combustion head, atomization mixing chamber, and atomizer components, and clean or replace the sealing O-ring if necessary.
3. System calibration: Regularly calibrate pressure gauges and flow meters, and check whether the automatic valve action is sensitive. Check whether the gas cylinder leaks and whether the gas pipeline has good airtightness.
3、 Special shutdown maintenance
Special maintenance is required when the equipment is out of service for a long time or experiences abnormalities:
1. Shutdown preparation: When stopping use, the internal liquid should be drained to prevent freezing cracking and corrosion. Try to minimize the number of device starts and stops, and avoid frequent starts and stops that may affect the lifespan of the equipment.
2. Moisture and dust prevention: Cover the equipment with a plastic cover and place moisture-proof silicone inside the cover to prevent the lamp chamber from getting damp and the mirror from getting moldy. It is advisable to use warm water and a soft cloth to clean the shell, and avoid using organic solvents.
3. Long term storage: If the equipment is not used for a long time, it is recommended to turn it on 1-2 times a week, each time for about half an hour, to prevent component aging. Before reactivation, a comprehensive check of all system functions should be conducted.
4、 Precautions
1. Safe operation: Maintenance must be carried out after the equipment is powered off and cooled to room temperature to prevent electric shock or burns. Do not apply excessive force when tightening the nut to prevent breaking the glass tube.
2. Environmental requirements: The equipment should be installed in a dry and well ventilated environment, with the machine placed on a platform at a height of more than 30cm from the ground and kept at a distance of more than 800mm from the wall.
3. Water quality management: The water source must be pure water produced by reverse osmosis to avoid impurities entering the system and affecting equipment performance. Regularly inspect and analyze changes in the composition of the medium to determine if there are any leaks.
Through the above systematic maintenance methods, the operational efficiency and service life of the tubular multi effect distilled water machine can be effectively guaranteed.