I. Temperature Control System Maintenance
1. Sensor Calibration
Calibrate the PT100 sensor quarterly using a standard thermometer. Replace it if the error exceeds ±0.5℃.
Keep the sensor clean to prevent scale or dye residue from affecting accuracy.
2. Heating Element Inspection
Regularly check the resistance of the electric heating element (e.g., a normal resistance of a 380V/18kW heating element is approximately 8Ω).
For steam-heated models, check for blockages in the steam trap and ensure stable steam pressure.
3. Heat Exchanger Cleaning
Acid wash the heat exchanger pipes annually to remove scale and prevent a decrease in heat transfer efficiency.
II. Dye liquor circulation system maintenance
1. Fabric Distribution Inspection
Ensure the fabric is evenly distributed before dyeing to avoid knots or piles that could affect heat exchange.
2. Circulation Pump Maintenance
Regularly check the circulation pump current. Stop the machine for maintenance if it exceeds the rated value by 15%.
Keep the pump pipes lubricated to reduce wear. III. Safety Precautions
1. Replacement of Wear Parts
Replace wear parts such as sealing rings and filters regularly to prevent leaks or blockages.
2. Inspection of Protective Devices
Check the safety doors and emergency stop buttons daily to ensure they are in good working order.
Wear protective equipment during operation and avoid contact with high-temperature components.
IV. Operating Procedures
1. Temperature Setting
Set the temperature according to the fabric type (e.g., 100-145℃ for synthetic fibers, 30-60℃ for natural fibers).
Avoid overheating to prevent damage to the heating element.
2. Heating Rate Control
The recommended heating rate is 1-2℃/min to avoid dye buildup on the outer layer of the fibers.
