WATER COOLED CENTRIFUGAL CHILLER
Model：KWL
Model：KWL
Refrigeration capacity：1760~10548kW
Refrigerant：R134a
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■ Two-stage compression：Dual stage compression improves the compression ratio, broadens the operating range, provides a larger pressure ratio, achieves higher operating efficiency, and expands the applicable working range of the compressor, reduces the risk of surge under low load, and enables the unit to operate safely and stably under low load.
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■ Efficient and energy-saving：By combining two-stage compression and jet enthalpy enhancement technology, the efficiency of the refrigeration system has been improved by over 6%. Efficient economizer+high-efficiency falling film evaporator+two-stage throttling, fully improving energy efficiency. Overall meeting the national level energy efficiency standards, significantly reducing the operating costs of the system in the later stages.
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■ Built in oil pump design：Adopting a unique injection and oil return technology, the lubricating oil accumulated at the bottom of the heat exchanger and compressor is promptly injected back into the oil tank, completing the low-pressure side oil return function without energy loss of the unit, avoiding a decrease in heat exchange efficiency caused by lubricating oil entering the refrigerant system.
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■ Flash economy：Built in flash economy device, it can separate medium pressure saturated refrigerant for gas-liquid separation and improve system operation energy efficiency.
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■ Quiet operation：Adopting the optimal speed and impeller diameter configuration to reduce operating noise; And it adopts two-stage compression to reduce the speed, especially achieving low noise in the high-frequency region. Reasonable vibration reduction facilities make the unit more suitable for schools, hospitals, office buildings, and other places with high noise requirements.
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■ Low carbon and environmental protection：Using R134a environmentally friendly refrigerant, which does not contain chlorine and has no destructive effect on the atmospheric ozone layer, is currently the best choice for large chiller refrigerants.
