The core function of the nylon moisture absorption cooking machine is to achieve efficient moisture absorption treatment of nylon materials through precise control of steam generation and humidity environment. Its steam generation and humidity closed-loop control system can be disassembled into the following key links:
1、 Steam generation system: efficient energy conversion and stable output
The steam generation system uses electric heating elements or fuel combustion to generate heat energy, which is transferred to the flowing water inside through metal heat transfer tubes. Water undergoes two stages in a heated pipeline:
Preheating stage: The water temperature rises to the saturation temperature (boiling point), during which sensible heat is absorbed;
Vaporization stage: Water absorbs latent heat at a constant saturation temperature (approximately 2257kJ from 1kg of water to steam) and is converted into saturated steam.
The system improves heat transfer efficiency and reduces the risk of bubble adhesion by optimizing the layout of heat transfer pipelines (such as spiral coils) and forced circulation design (water pump driven water flow), achieving fast start-up (some models produce steam within 1-5 minutes) and stable steam supply. After mixing steam with non vaporized water droplets, it enters the steam water separator and separates liquid water through a swirl plate or metal filter screen to ensure the output of dry steam (low moisture content) and avoid uneven moisture absorption of nylon materials.
2、 Humidity closed-loop control system: dynamic monitoring and precise regulation
The closed-loop control system is centered around sensors, which monitor the humidity data inside the cooking chamber in real time and compare it with the set value to generate deviations. The system processes deviations through PID algorithm and outputs a regulating amount to control the heating power or steam output of the steam generator
When the humidity is low: increase the heating power, increase the steam production, and accelerate the moisture absorption of nylon material;
When the humidity is too high: reduce the heating power or suspend the steam supply to prevent excessive moisture absorption from causing material deformation.
The system supports independent control in multiple areas, such as setting humidity parameters for different sizes or types of nylon products, adjusting steam flow in each area through solenoid valves or variable frequency fans, and achieving differentiated processing. In addition, the system is equipped with an alarm module that triggers sound and light alarms and records fault information when humidity exceeds the safe range or when sensors fail, ensuring production safety.