OMEXELL Process Cooling Water (PCW) Heat Exchange Units are custom‑designed circulating cooling systems tailored for industrial process equipment. They integrate four core modules – high‑efficiency heat exchange, variable‑frequency pump sets, precision filtration, and intelligent control – to precisely match the high‑heat‑load cooling demands of industries such as electronics, semiconductors, photovoltaics, optoelectronics, lithium batteries, and various precision manufacturing sectors. With three core advantages – high energy efficiency, stable reliability, and intelligent operation and maintenance – they serve as the "temperature guardian" of process equipment.
1. System Architecture – Dual‑Loop Design
1.1 Primary side (chilled water): 7–12 °C softened water, serving as the cold source input.
1.2 Secondary side (process water): 18–30 °C (adjustable), using high‑purity water / deionized water for direct cooling of precision process equipment.
2. System Configuration – High Efficiency, Reliability, and Zero Downtime Risk
2.1 Heat exchange equipment: High heat transfer coefficient, low pressure drop, easy disassembly and maintenance, and expandable capacity. 100% redundant configuration ensures continuous operation.
2.2 Circulating pump sets: Variable‑frequency control, 100% redundancy, automatic failover upon fault detection, real‑time monitoring across the entire loop, and early warning protection.
2.3 Precision filtration: Bag filters (50 µm) with stainless steel piping, strictly controlling water quality to prevent contamination, meeting the stringent requirements of semiconductor manufacturing processes.
3. Control Accuracy – Ultra‑High Stability
3.1 Temperature control accuracy: Standard accuracy up to ±0.5 °C; for semiconductor lithography/etching applications, accuracy can reach ±0.1 °C to ±0.05 °C.
3.2 Pressure stability: 0.3–0.5 MPa with fluctuation ≤ ±0.02 MPa; flow rate is maintained constant.
4. Automation and Monitoring – Intelligent Operation and Maintenance
4.1 PLC + HMI: Siemens PLC with a Chinese/English touchscreen, displaying real‑time parameters such as temperature, pressure, flow rate, and conductivity.
4.2 Automatic control: Includes automatic start/stop, PID temperature regulation, variable‑frequency speed control, automatic water makeup, blowdown, and chemical dosing.
4.3 Remote monitoring: Supports host computer and IoT remote access, data logging, fault alarms, and traceability.
4.4 Safety protection: Provides protection against water shortage, overtemperature, overpressure, overload, and electric leakage, with self‑diagnostic fault detection.
5. Skid‑Mounted Integration
Factory‑pressure‑tested and pre‑commissioned, the unit is delivered as a highly integrated skid‑mounted package. On‑site installation requires only utility connections – plug‑and‑play. This reduces project construction time by over 60%, rapidly matching the pace of production line build‑out.
