1. Check the cooling water tank
Check the power supply and water circuit:
Turn on the power switch of the cooling water tank.
Open the water inlet valve of the cooling water tank, turn on the water pump operation switch, and check whether the water inlet and spray device are blocked.
Open the water outlet valve of the water tank and check whether the water outlet water circuit is normal.
Check the vacuum pump:
Turn on the water tank vacuum pump and check the operation of the vacuum pump.
Check the level and alignment:
Check whether the level of the cooling water tank and its center line are in the same straight line with the center line of the extruder.
2. Check the cooling water circuit
Check the unobstructed condition of the water circuit:
Check whether the cooling water circuit is unobstructed, and whether there is water leakage, air leakage, oil leakage, etc.
Ensure the flow and temperature of the cooling water are normal, and clean the cooling water pipe regularly to prevent scale accumulation.
Check the cooling system components:
Check the various components of the cooling system, such as water pumps, coolers, etc., to ensure that they are not leaking, blocked or damaged.
3. Check the working status of the cooling system
Check the cooling effect:
During the extrusion process, ensure that the cooling system works normally to avoid overheating caused by shear friction of the material.
Check whether the temperature of the cooling water tank meets the process requirements and adjust the flow of cooling water if necessary.
Check the temperature and flow of cooling water:
Check the temperature and flow of cooling water regularly to ensure that they are within the normal range.
If the cooling water temperature is too high or the flow is insufficient, check the working status of the cooling system in time.
4. Regular maintenance
Clean the cooling system:
Clean the cooling water tank and cooling pipe regularly to prevent the accumulation of scale and impurities.
Use descaling agent or change cooling water regularly to keep the cooling system running efficiently.
Check cooling system components:
Regularly check the various components of the cooling system, such as water pumps, coolers, etc., to ensure that they are not leaking, blocked or damaged.
If a component is found to be damaged, it should be replaced in time.
5. Precautions
Avoid overloading the cooling system:
Ensure that the load of the cooling system is within the design range to avoid overload operation.
Check the quality of cooling water:
Check the quality of cooling water regularly to ensure that it is clean and free of impurities.
Record maintenance:
Establish maintenance records for the cooling system, and record in detail the time, content and results of each maintenance in order to track the status of the equipment.
