The nylon constant temperature and humidity machine achieves dynamic balance between temperature and humidity through precise physical mechanisms. Its core consists of four major systems: refrigeration, heating, humidification, and dehumidification, as well as an intelligent control system. Each system works together to maintain environmental stability.
The refrigeration system adopts the cascade vapor compression refrigeration technology, which consists of two independent refrigeration circuits: high temperature and low temperature. The high-temperature refrigerant evaporates and absorbs the low-temperature heat, while the low-temperature refrigerant absorbs heat from the air and exchanges heat through an evaporative condenser, thereby reducing the ambient temperature. This design can meet the extremely low temperature requirements (such as below -55 ℃), ensuring precise and controllable temperature in nylon processing or storage environments.
The heating system is centered around high-power resistance wires, which directly heat the air by converting electrical energy into thermal energy. The system power is relatively high, and a heater is added to the equipment base plate to quickly respond to the heating demand and ensure temperature uniformity.
Humidity regulation is achieved through a dual mechanism of humidification and dehumidification:
Humidification: Using steam humidification or ultrasonic humidification technology. Steam humidification generates steam through electric heating and injects it into the air, with fast response and uniform humidity; Ultrasonic humidification utilizes high-frequency vibration to atomize water, with high precision and energy efficiency.
Dehumidification: relying on compressor refrigeration dehumidification or desiccant adsorption dehumidification. The former achieves high efficiency by cooling the air to below the dew point to condense and discharge water vapor; The latter is suitable for extremely low humidity environments (such as below 10% RH), achieving deep dehumidification through the recycling of moisture absorbing materials.
The humidity response logic is based on a closed-loop control system: high-precision humidity sensors (such as capacitive sensors) monitor the environmental humidity in real time and feed the data back to the PID controller. When the humidity is lower than the set value, the controller starts the humidification system; When the humidity exceeds the standard, the dehumidification mechanism is triggered. The system dynamically adjusts the output of humidification/dehumidification equipment, combined with temperature coupling control (such as synchronously starting heating in low-temperature environments), to ensure that the humidity fluctuation range meets the requirements of nylon processing (usually within ± 5% RH), avoiding fiber performance degradation or production failures caused by improper humidity.