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The condensing unit can achieve rapid start stop, especially in modern refrigeration systems. In order to respond to load changes, save energy and be efficient, rapid start stop has become a key function of condensing units. The following is a point by point introduction:
1、 Implementation conditions for rapid start stop of condensing units
●Adopting high-efficiency compressors (such as fully enclosed vortex and screw)
●Fast response speed, proper control of starting current, suitable for frequent start stop.
●The start and stop processes are smooth and have minimal impact on the system.
●Equipped with intelligent control system
●The controller can make quick judgments and action commands based on temperature, pressure, and other data.
●Support timed control, load sensing start stop, remote control, etc.
●Optimization Design of Electronic Control System
●Use a soft starter or frequency converter to effectively reduce the impact current and mechanical vibration during start stop.
●The start stop sequence of equipment such as compressors, fans, solenoid valves, etc. can be accurately controlled through PLC or microcomputer.
2、 The advantage of quick start stop
●Adapt to load fluctuations
●For applications with frequent changes in cooling load (such as frequent opening and closing of supermarket doors and intermittent operation of equipment), quick start stop can respond to cooling demand in a timely manner.
●Improve Energy Efficiency Ratio (COP)
●Reduce energy consumption from prolonged standby or excessive operation.
●Reduce power consumption while meeting cooling capacity requirements.
●Extend equipment lifespan
●Reasonably control the start stop frequency, cooperate with soft start and delay protection, and reduce mechanical shock and electrical aging.
●Improve system response speed
●Activate the cooling function in a short period of time, suitable for scenarios that require high cooling speed (such as cold chain transfer stations, quick freezing processing, etc.).
