Explosion-proof screw-type chilled water unit

Explosion-proof cold water chillers utilize a variety of explosion prevention methods, including flameproof, increased safety, intrinsic safety, positive pressure, oil-filled, sand-filled, non-sparking, sealed immersion, and airtight.

Ensure the equipment can be used in flammable and explosive environments, and select different explosion-proof levels based on the characteristics and safety requirements of the specific application.

High safety factor for air-cooled explosion-proof chillers: equipped with explosion-proof compressor, explosion-proof electrical control box, explosion-proof pump, explosion-proof flow switch, explosion-proof controller, and explosion-proof axial flow fan, etc.

Select a dry evaporator on the evaporator. It optimizes the temperature field distribution and refrigerant flow field distribution, with high heat exchange efficiency. The optimized flow field arrangement on the refrigerant side maximizes heat exchange efficiency while ensuring water pressure drop. The fin design inside the heat exchange tubes enhances heat exchange efficiency. The槽-shaped tube plate hole design and advanced tube expansion technology result in a reliable sealing structure, thus avoiding the issue of refrigerant渗入evaporator管程. Outer packaging20 ～40mm Thick, soft, closed-cell rubber foam thermal insulation material effectively prevents heat transfer between the evaporator and the machine room's external air, significantly reducing energy loss. The condenser is selected as a shell-and-tube condenser. It optimizes the temperature field distribution and refrigerant flow field distribution, with high heat exchange efficiency. The external fin design of the heat exchange tube enhances heat exchange and condensation, improving the heat exchange efficiency outside the tube. The ribbed design inside the heat exchanger increases the heat exchange area and improves the heat exchange efficiency inside the tube, while increasing turbulence by stirring to delay scaling. The unique tube bundle elastic support design greatly reduces vibration and eliminates the possibility of copper tube breakage. Grooved tube plate hole design and expansion tube technology result in a reliable sealing structure, avoiding the issue of circulating water渗入 the shell side of the condenser. The main unit adopts the third generation internationally5：6Asymmetric rotor semi-hermetic screw compressor, motor and compressor Integrated, leak-free with no shaft seal concerns; a combination of two or more compressors with a precise control program for balanced performance of the high-quality head components. Herb, extends equipment lifespan. Two-stage multi-compressor systems use multiple refrigeration circuits; when one circuit requires maintenance, the others can still operate normally.  Operational with backup features. The compressor uses a star-delta reduction start to avoid impacting the power grid.