冷库实行节能运行的实时控制任务，可由数据釆集、计算控制和监控系统来完成。数据采集计算控制系统的采集对象是制冷装置、制冷系统和工作环境的所有相关参数，类别有温度、压力、压差、液位、电流、运行状态和故障情况等内容。

The cold store implements the real-time control task of energy saving operation, which can be completed by data acquisition, computation control and monitoring system. The acquisition objects of the data acquisition and calculation control system are all the related parameters of the refrigeration system, the refrigeration system and the working environment, including temperature, pressure, pressure difference, liquid level, current, running state and failure condition.

电子膨脹阀的釆用，可节能10%;按需融霜功能，可节能5%;夜间回置的库温设定，可节能4%;冷风机风扇运行控制，可节能3%;冷库门防结露丝控制，可节能2%;压缩机组和冷凝风扇控制，可节能10%。以上6条措施的综合节能效果，可达15～34%。

The use of electronic expansion valve can save energy by 10%, energy saving 5%, energy saving at night, energy saving 4%, cooling fan fan operation control, energy saving 3%, cold storage door anti knot Ruth control, energy saving 2%, compressor unit and condensing fan control, energy saving 10%. The comprehensive energy saving effect of the above 6 measures can reach 15 to 34%.

能量调节使压缩机的制冷量能随热负荷的变化而变化，是冷库节能自动控制的重要内容之一。不同的制冷压缩机或制冷机组，实施节能运行和能量调节的侧重点也有所不同。

Energy regulation makes the refrigerating capacity of compressor change with the change of heat load. It is one of the important contents of automatic control of cold storage energy saving. Different refrigeration compressors or refrigerating units have different emphasis on energy-saving operation and energy regulation.

设定压缩机运行制冷量时，避免其低能效比的运行范围;对运行工况变化范围较大的制冷系统，实行内容积比自动调节;对于带经济器运行的螺杆机，探讨实施经济器运行工况的自动调节。

The operation range of low energy efficiency ratio is avoided when the compressor operation cooling capacity is set, and the content product ratio is automatically adjusted for the refrigeration system with large range of operating conditions, and the automatic adjustment of the operating condition of the economy is discussed for the screw machine running with the economy.

减少以某台压缩机工作的气缸数为能量调节单元的做法，避免活塞的无功运行，亦避免降低压缩机C0P值的运行;采用变频技术，实现能量无级调节，在改善运行工况中节能。

Reducing the number of cylinders working in a compressor as an energy adjustment unit, avoiding the reactive power of the piston, and avoiding the operation of the C0P value of the compressor; using frequency conversion technology to realize the energy stepless regulation, and to improve the energy saving in the operation condition.

变频技术用于压缩机能量调节是目前较为流行的方法之一。变频过低，会造成油压差降低和油量减少的缺点;变频过高，会增加油循环量和消耗量，还会使压缩机阀门故障增加。变频驱动还应注意其电机应按最大功率选择。

Frequency conversion technology is one of the popular methods for compressor energy regulation. The low frequency of frequency conversion will cause the shortcoming of the oil pressure difference and the decrease of oil quantity; high frequency conversion will increase the oil circulation and consumption, and will also increase the failure of the compressor valve. The frequency conversion drive should also be noted that the motor should be selected according to the maximum power.

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