Professional Equipment for Water Treatment

Cooling system for the ozone generator

The cooling system of the power supply unit (PSU) for the De Nora ozone generator is specifically designed to manage the thermal load generated by the rectifier, inverters, and high-voltage transformers housed within the PSU cabinet.
This system ensures that critical electronic components operate efficiently within a specified temperature range of 10 °C to 45 °C. Utilizing a closed-loop air cooling principle, the system is powered by a 7 kW air conditioning unit that maintains a stable internal temperature by continuously supplying conditioned air to the cabinet.

The cooling block is equipped with precision temperature sensors, such as PT100 or thermistors, that continuously monitor the temperature to prevent overheating of high-heat-generating components, including the rectifier bridge, capacitor banks, and IGBT/MOSFET modules.
The control system is integrated with a Siemens S7 PLC, which activates the air conditioning unit or high-performance forced ventilation when the cabinet temperature exceeds a predetermined threshold. This proactive approach to thermal management ensures that the ozone generator operates reliably and efficiently under varying environmental conditions.

In the event of a failure of the air conditioning unit, safety protocols are in place to alert the operator through an alarm signal and automatically reduce or shut down the system's power.
The cooling fans used in this system are low-noise, durable, and designed for industrial applications, making them suitable for continuous operation. This robust cooling solution is essential for maintaining optimal performance and longevity of the ozone generation equipment.

Specifications
• Cooling Type: Closed-loop air cooling
• Cooling Capacity: 7 kW
• Temperature Range: 10 °C to 45 °C
• Temperature Sensors: PT100 or thermistors
• Control System: Integrated with Siemens S7 PLC
• Alarm System: Alerts operator in case of air conditioning failure
• Fan Type: Low-noise, durable, industrial-grade fans
• Safety Protocols: Automatic power reduction/shutdown during failures

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