Operation and maintenance method of ultra-high temperature sterilization machine

Ultra-high temperature sterilization machine operation method:

1. Check and prepare before operation: Before each use, the state of the sterilizer must be thoroughly checked, including safety valves, traps, pressure gauges and thermometers, and whether the pipes are unblocked, etc., and need to be filled in the storage tank. Clean water and connect the feed pipe.

2. Circulating temperature adjustment: open the water clear valve at the upper end of the storage tank, start the feed pump, start the circulation of clean water in the sterilizer, and then slowly open the steam to make the sterilization temperature reach the process requirement, and adjust the discharge by the size of the cooling water. temperature.

3. Drainage feed: When the predetermined requirement is reached, close the clean water valve, turn the rotary bend pipe to the overflow pipe, and discharge the clean water. When the water in the storage tank is exhausted, quickly open the feed three-way plug feed. ;

4. Sterilize the product: When the rotating elbow starts to discharge the material, the elbow is turned to make the material flow into the storage tank, and the discharge three-way rotary plug is opened at the same time, and the temperature in the sterilization is maintained.

5. Cleaning after use: fill the storage tank with clean water before sterilizing the material. When all the sterilization is completed, open the feed tee to the water inlet and open the water clear valve until the discharge tee flows out of the clear water. After adjusting the discharge tee to make the water circulate in the sterilizer, turn the rotating elbow to drain, and when the water is clear, stop the washing. Prepare the acid-base solution in the storage tank, heat it to about 75 °C, wash it separately, and then rinse it off with clean water. After the completion, drain the water to fill it in the sterilizer until the next use. Clean up the surrounding hygiene.

Maintenance method of ultra-high temperature sterilization machine:

Instantaneous UHT sterilizers have better performance and longer life, which is good for the quality and economy of the company. Therefore, the maintenance of the ultra-high temperature sterilization machine is very important.

1. Ultra-high temperature sterilization machine cleaning: Generally, the frequency of cleaning the instantaneous ultra-high temperature sterilization machine is 6 to 8 hours each time, almost every class needs to be cleaned once, especially for materials with high protein and sugar content, timely Cleaning is especially necessary. When it is found that the production capacity drops significantly in special time, it should be stopped for cleaning. Detergent should be selected according to the sterilized materials. Do not use chloride to prevent corrosion of stainless steel. At the same time, the number of acid and alkali rinsing should be minimized. Especially the pickling is irreparable for the destruction of the sterilizer.

2. In order to ensure the safety of the instantaneous ultra-high temperature sterilizer, it is necessary to install a matching safety valve at the steam inlet and check it regularly.

3. Pay attention to the correct steering of the feed pump. The feed direction is counterclockwise and cannot be reversed. Leakage of feed centrifugal pumps often occurs, which is usually caused by wear of the end seals and should be repaired or replaced in time.

4. Sometimes there will be a situation where the material supply is not available during the sterilization process. In this case, the water can be stored in the storage tank, and the water can be used instead of the material for circulation in a short time. After a long time, the material can be paused for a long time. Sterilize again.

5. In case of sudden power failure during the sterilization process, the steam should be quickly shut down, the steam exhaust valve should be exhausted to exhaust the steam in the high temperature bucket, and the inlet water shutoff valve should be opened.

6. If there is a stoppage or the air pressure does not meet the process requirements during the sterilization process, the valve should be adjusted to circulate or temporarily stop the material.

7. Prevent debris from entering the clogging sterilizer, and the entry of air will accelerate the fouling of the coil.