Emerson Vortex Compressor ZB76KQ/ZB76KQE Medium and High Temperature Cold Storage Refrigeration Compressor American Grain Wheel
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Cooling Capacity (W): Approximately 16,400 – 35,500
Applicable Refrigerant: R22, R404A
Input Power (kW): Approximately 10 (10 HP)
Structure Type: Hermetically Sealed Scroll Type
Displacement Type: Fixed Displacement
Capable of operating stably across a wide range of evaporation and condensation temperatures (e.g., 40℃), adapting to varying operating condition requirements.
Performance Advantages1. High Efficiency and Energy Saving The compression process of a scroll compressor is continuous and gradual, with almost no clearance volume loss or suction/discharge pressure loss. Its volumetric efficiency can reach 90%–98%. For the same cooling capacity, the scroll type provides about 10% higher adiabatic efficiency compared to reciprocating compressors. The coefficient of performance (COP) can reach 3.31 W/W, which is 12% higher than advanced piston compressors on the market. Even at 30% load, the COP remains above 3.0, delivering significant energy-saving benefits. 2. Low Noise and Vibration As the scroll compressor compresses continuously rather than through intermittent shocks like piston compressors, it operates with exceptional smoothness. Its noise level is at least 5 decibels lower than that of piston compressors, with sound pressure controlled within 68 dB(A). This fully complies with the ISO 3744 Class B quiet certification standard. The compression chambers are symmetrically distributed, resulting in very low unbalanced stress, and no vibration-absorbing devices are required. 3. Strong Load-start Capability Even under conditions of significant pressure differentials between high and low sides, COPELAND compressors can start reliably. This is crucial for heat pump systems restarting after defrosting in severe cold weather. The product utilizes an unloading-start technology: the compression components separate when the unit stops, ensuring complete pressure balance inside the compressor without the need for additional starting devices.
Product Application
This series of compressors can operate stably across a wide range of evaporation and condensation temperatures (e.g., 40°C), adapting to varying operating condition requirements. The cooling capacity ranges from approximately 16,400 W to 35,500 W, with an input power of about 10 kW (10 HP). They are compatible with multiple refrigerants such as R22 and R404A and are widely used in scenarios such as medium- to high-temperature cold storage, retail display cabinets, food refrigeration, and industrial ice-making machines.
FAQ
How to use a refrigeration compressor to save more electricity?
I. Proper Selection and Matching as the Foundation
Power Matching: Select a compressor with appropriate power based on actual cooling needs to avoid "oversizing" (using an oversized compressor for a small load). An oversized compressor that frequently starts and stops can increase energy consumption by over 30%. It is recommended to choose a variable‑frequency compressor, which can automatically adjust its operating frequency according to the load, achieving energy savings of up to 32%.
Energy Efficiency Rating: Prioritize compressors with Grade‑1 or Grade‑2 energy efficiency. The coefficient of performance (COP) should be above 3.0. For every 0.1 increase in COP, annual electricity savings can reach approximately 3%–5%.
II. System Optimization Is Key
Condenser Cleaning: Regularly clean the condenser fins to maintain good heat dissipation. For every 1 °C rise in condenser temperature, compressor power consumption increases by 2%–3%. It is recommended to clean the condenser monthly, and every two weeks during the high‑temperature summer season.
Evaporator Optimization: Ensure the evaporator fins are clean to guarantee efficient heat exchange. For every 1 °C drop in evaporation temperature, compressor power consumption rises by 3%–4%. Defrost regularly to avoid excessive frost buildup, which reduces heat‑transfer efficiency.
Refrigerant Charge Level: Maintain the proper refrigerant charge. Both under‑charging and over‑charging will reduce energy efficiency. It is recommended to check refrigerant pressure quarterly and promptly replenish or recover refrigerant if any abnormality is detected.
Intact Insulation Layer: Inspect the insulation of cold rooms and pipelines to prevent cold‑loss leakage. Damaged insulation can increase cold loss by 20%–30%, forcing the compressor to run continuously to compensate.
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