Working principle of explosion-proof mold temperature controller

When an explosion-proof mold temperature controller operates, the heating system first begins. When the internal heating elements (such as electric heating tubes) are energized, electrical energy is converted into heat energy, heating the heat transfer medium (commonly water or heat transfer oil). The heated heat transfer medium, its temperature rising, is forced through a circulating pump along a specific pipeline system to the internal channels of the mold requiring temperature control.

Inside the mold, the high-temperature heat transfer medium exchanges heat with the mold, transferring heat to the mold and raising its temperature to the required production temperature, maintaining it within the set range. When the mold temperature becomes too high, the cooling system activates. If water cooling is used, cold water exchanges heat with the high-temperature heat transfer medium through a heat exchanger, carrying away excess heat and lowering the medium's temperature. If air cooling is used, fans or other equipment accelerate airflow to remove heat.

Throughout the entire process, temperature sensors monitor the temperature of the heat transfer medium and the mold in real time and feed the data back to the control system. The control system compares and analyzes the preset temperature value with the actual monitored temperature. If there is a temperature deviation, it automatically adjusts the power of the heating element or controls the operating intensity of the cooling system, thereby accurately controlling the mold temperature and ensuring the safe and stable operation of the production process. Furthermore, because it is used in flammable and explosive environments, special explosion-proof designs are employed in the electrical system and other aspects to avoid dangers caused by electrical sparks.