Does the cooling water in the graphitization furnace have an alarm? Tri"&"ple Sensors + Two-Level Alarms + Mechanical Redundancy: In-Furnace Quality Assurance System

If you compare the graphitization furnace to a person, the cooling water is its blood. The induction coil generates enormous heat when operating at high c"&"urrent. Without continuous cooling water to dissipate this heat, the coil will burn out, deform, and become unusable within minutes. I have seen cases where coils burned out due to cooling water interruption, resulting in losses of hundreds of thousands.<"&"/p>

The water cooling system is not a secondary role; it is the lifeline. The core idea can be summarized in three words: **Multiple Protections**.

Triple Sensor Protection

• Flow Sensor: Real-time monitoring of water flow in each channel; alarms when flow is below the set value; automatically cuts off heating power if flow is severely low.
• Pressure Sensor: Monitors inlet water pressure (0.1-0.2MPa), detecti"&"ng pump aging or pipe blockage trends in advance.
• Temperature Sensor: Installed at critical locations such as the coil outlet; excessively high outlet water temperature indicates poor heat dissipation.

Flow, press"&"ure, and temperature cover the three core dimensions of the cooling water system, forming a triple protection network.

Two-level alarm mechanism

Mechanical redundancy protection

In addition to electronic sensors, the pipeline is also equipped with a mechanical electrical contact pressure"&" gauge and flow switch—a purely mechanical structure, independent of PLC and circuits. When water pressure is abnormal or flow is interrupted, it directly cuts off the main circuit to stop the equipment. Like a fuse, it works silently most of the"&" time, but steps up in critical moments.

Summary: Triple electronic sensors + two-level alarm mechanism + mechanical redundancy protection. Behind each l"&"ayer of protection may lie a real lesson. We cannot allow a second chance when it comes to coolant.