For safety, quality, security, use Kaydeli!
For safety, quality, security, use Kaydeli!
In chemical production, process cooling is essential for reaction efficiency, product quality, and safe system operation. A project in Xinjiang highlights how high-performance industrial chillers can meet demanding requirements for reliability, energy efficiency, and precise control.
The project is located in Xinjiang, a region with a typical continental climate—hot and dry summers and cold winters. These extreme conditions put pressure on cooling systems to maintain stable performance. The plant was built to support an annual output of 500,000 tons of sodium hypochlorite and 100,000 tons of AC blowing agent, requiring continuous chilled water supply for stable operation.
The process demanded a steady supply of 7°C chilled water for heat exchange, with return water rising to 12°C before recirculation. The cooling tower water operated at 32/40°C, and the total cooling load reached about 7,000kW. This scale made it a large industrial cooling application with strict performance standards.
In addition to cooling capacity, the client specified clear standards for refrigerants, operating pressures, heat exchange efficiency, and control integration. Refrigerants were limited to R-134a or R22, balancing performance with environmental compliance. Chilled water and cooling water inlet and outlet parameters were strictly defined. Furthermore, the system needed advanced load adjustment to handle production changes efficiently.
Based on these requirements, Kaydeli’s technical team selected three screw-type water chiller units with dual-compressor parallel design. Screw compressors are compact, stable, efficient at partial load, and easy to maintain—ideal for medium to large cooling demands. Each compressor was sourced from a leading international brand with proven reliability in chemical industry applications.
The units used R-134a as the refrigerant, chosen for its balance of energy efficiency, thermal performance, and environmental compliance. To improve heat exchange, both evaporators and condensers were built with high-efficiency enhanced tubes. Parameters were carefully matched to the user’s process: chilled water at 7/12°C, cooling water at 32/40°C, with pressures controlled at 0.4MPaG/0.32MPaG. This precision ensured that all process cooling needs were fully met.
Since commissioning, the chiller system has maintained stable and efficient operation. The outlet water temperature remained precise, ensuring reliable process control for sodium hypochlorite and AC blowing agent production. Even during peak summer heat, the units sustained rated efficiency, showing strong adaptability and redundancy.
The system’s excellent load regulation also allowed high COP values under partial load, reducing electricity and water consumption. This supported the chemical plant’s goals for energy savings and emission reduction, aligning with industry trends in green manufacturing.
The chiller system was designed with strict compliance to national and international safety standards. It included advanced fault protection and waste management features, preventing any risk of contamination to process media or the environment. An integrated oil recovery system further protected heat exchange efficiency and extended equipment lifespan.
By delivering high performance, safety, and ease of installation, the project provided valuable experience for other large-scale chemical processes such as epichlorohydrin, PVC, and isocyanates.
This Xinjiang project shows how high-efficiency screw chillers play a critical role in supporting demanding chemical production. With precise temperature control, strong energy performance, and reliable safety systems, Kaydeli industrial chillers ensured long-term stability and efficiency.
Kaydeli will continue to provide advanced temperature control solutions, helping global industries achieve high-quality and sustainable production. If you are looking for a trusted industrial chiller supplier, Kaydeli is your reliable partner.
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