Parallel Unit of BOCK Reciprocating Refrigeration Compressor

Parallel Unit of BOCK Reciprocating Refrigeration Compressor

Compressor brand: BOCK

Application field: Small and medium-sized cold storage for preservation and freezing at 0°C to-18°C

Product features:

1. Model selection is flexible

(1) Applicable evaporation temperature: -45°C to-7.5°C

(2) Compatible with multiple refrigerants: R404A, R507A, R22

(3) 20HP-300HP, with a maximum cooling capacity of 600KW

2. Stable and reliable operation

(1) The unique low ambient condensing pressure constant regulation system prevents liquid supply shortage or oil flow alarm caused by low ambient temperature, ensuring stable system operation.

(2) The high efficiency gas-liquid separation device and unique pipeline design can avoid the possibility of liquid hammer in compressor.

(3) Each unit comes with a full set of safety protection modules by default, covering phase loss, reverse phase sequence, overvoltage, undervoltage, oil pressure, high voltage, low voltage, and motor overload, along with control systems that effectively prevent frequent start-stop cycles.

(4) Each unit comes with a PLC controller as standard, which automatically adjusts the number of compressors in operation based on cooling demand, balances the runtime of individual compressors, and reduces energy waste, extending the unit's lifespan by over 30% compared to standalone units.

3. Use energy-efficient solutions

(1) As the cooling demand varies significantly across seasons, the unit must have high capacity control capability to maintain efficient operation under load fluctuations. The average efficiency of parallel units is 30% higher than that of single-unit systems, depending on the refrigeration system configuration.

(2) Multiple compressors operate in parallel, providing multi-stage energy regulation. The cooling output dynamically adapts to actual load requirements with greater smoothness.

(3) The PLC controller automatically adjusts the number of operational units based on the return gas pressure, ensuring maximum efficiency even under partial load conditions.

(4) The PLC controller can configure optimal operating curves (covering grid peak-valley and off-peak periods), significantly reducing energy consumption for end-users.

4. Compact and agile structure

(1) All components including compressor, receiver, gas-liquid separator, oil separator, economizer, return gas manifold, liquid supply manifold, and electronic control equipment are integrated to maximize space efficiency in the machine room.

(2) The compact design of the unit reduces installation space, providing users with more commercial space and further creating value for end-users.

5. Simple and convenient operation

(1) The PLC features secure automatic control with a Chinese touchscreen menu and intuitive graphical interface, providing real-time display of equipment status, data logging, parameter settings, and fault alarms.

(2) Equipped with a remote communication interface for convenient monitoring by customers from different locations. It also features a print output port for printing historical records of unit and system operations.