Tongzhou Weipu IceLing AC Series Laboratory Circulating Chiller
| Brand | Tongzhou Weipu |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Line | IceLing AC Series |
| Cooling Method | Water-Cooled |
| Temperature Control Range | 5–35 °C |
| Cooling Capacity | 600–4600 W |
| Temperature Stability | ±1 °C |
| Circulation Pump Pressure | 13–19 m H₂O |
| Circulation Flow Rate | 10–58 L/min |
| Reservoir Volume | 8–40 L |
| Refrigeration Principle | Compression-Based Vapor-Compression Cycle |
Overview
The Tongzhou Weipu IceLing AC Series Laboratory Circulating Chiller is an integrated, water-cooled refrigeration system engineered for stable, continuous thermal management of heat-sensitive analytical and materials characterization instruments. It operates on a vapor-compression refrigeration cycle—utilizing a hermetically sealed compressor, condenser, expansion valve, and evaporator—to extract heat from process coolant (typically deionized or distilled water/glycol mixtures) and reject it via an external water circuit. Designed for seamless integration into laboratory infrastructure, the AC Series maintains precise temperature setpoints between 5 °C and 35 °C with a stability of ±1 °C under dynamic load conditions. Its modular architecture accommodates variable cooling demands across instrument platforms—from low-heat-load spectrometers to high-power plasma sources—without requiring external chillers or secondary heat exchangers.
Key Features
- Integrated all-in-one design eliminates need for separate pump, reservoir, and refrigeration units—reducing footprint and installation complexity.
- Water-cooled condensation enables consistent performance in ambient environments up to 35 °C, independent of room air conditioning capacity.
- Wide cooling capacity range (600–4600 W) supports diverse instrumentation loads, scalable via model selection within the AC Series.
- High-head circulation pump delivers adjustable flow rates (10–58 L/min) and pressure head (13–19 m H₂O), ensuring reliable coolant delivery through long tubing runs or high-resistance instrument manifolds.
- Corrosion-resistant stainless steel reservoirs (8–40 L volume options) minimize microbial growth and particulate generation; compatible with inhibited glycol solutions for sub-zero operation where required.
- Microprocessor-based PID temperature controller with real-time display, programmable setpoint ramping, and over-temperature/low-flow safety interlocks.
Sample Compatibility & Compliance
The IceLing AC Series is validated for use with a broad spectrum of laboratory instruments requiring active cooling, including atomic absorption spectrometers (AAS), inductively coupled plasma optical emission spectrometers (ICP-OES), scanning electron microscopes (SEM), plasma etching systems, glovebox purge circuits, direct-reading optical emission spectrometers (OES), Kjeldahl nitrogen analyzers, and high-frequency fusion units. All models comply with IEC 61000-6-3 (EMC emission standards) and IEC 61000-6-2 (immunity requirements). Electrical safety conforms to IEC 61010-1 for laboratory equipment. While not certified to UL or CSA standards out-of-the-box, units can be configured for North American electrical service (120/240 V, 50/60 Hz) and are routinely deployed in GLP-compliant laboratories where traceable calibration records and maintenance logs are maintained per ISO/IEC 17025 requirements.
Software & Data Management
The AC Series includes an embedded RS485 interface supporting Modbus RTU protocol for integration into centralized lab monitoring systems (e.g., LabVantage, Thermo Fisher SampleManager, or custom SCADA architectures). Optional Ethernet/Wi-Fi modules enable remote status monitoring—including real-time temperature, flow rate, compressor duty cycle, and fault codes—via secure HTTPS web interface or SNMP traps. Data logging is performed internally at 1-minute intervals for up to 30 days; exportable as CSV for audit trail reconstruction. Firmware supports time-stamped event logging (e.g., setpoint changes, alarm triggers, power cycles) aligned with FDA 21 CFR Part 11 principles when paired with validated user access controls and electronic signature workflows.
Applications
- Thermal stabilization of plasma torches and RF generators in ICP and plasma etch tools, preventing thermal drift in spectral resolution and etch uniformity.
- Cooling of graphite furnace assemblies in AAS to extend tube lifetime and improve reproducibility of peak-area integration.
- Heat extraction from SEM column optics and detector housings to reduce thermal noise and maintain sub-nanometer beam stability.
- Temperature regulation of glovebox antechambers and purge gas heat exchangers to ensure moisture/oxygen exclusion integrity during air-sensitive synthesis.
- Condenser cooling for Kjeldahl digestion units operating at sustained 400 °C mantle temperatures, minimizing acid vapor backflow and improving distillation efficiency.
FAQ
What is the recommended coolant composition for extended system life?
Deionized water with 15–25% inhibited propylene glycol (USP grade) is recommended for corrosion control and freeze protection down to –10 °C. Avoid ethylene glycol in labs handling biological or pharmaceutical samples due to toxicity concerns.
Can the chiller operate continuously for 24/7 applications?
Yes—designed for unattended, continuous-duty operation with redundant thermal fuses, compressor overload protection, and automatic restart after power interruption (configurable delay).
Is external water supply required for the water-cooled condenser?
Yes—a clean, low-conductivity (≤100 µS/cm) municipal or closed-loop tower water supply at 10–30 °C inlet temperature and 2–4 bar pressure is mandatory for rated cooling capacity.
How often should the system be serviced?
Compressor oil and refrigerant levels should be verified annually; filter driers replaced every 2 years or after any refrigerant circuit breach; reservoir cleaned and biocide treated quarterly in high-humidity environments.
