The invention provides a capacity adjusting method and system for a special variable-working-condition refrigerating unit for a rail refrigerated vehicle, and the method comprises the steps: carrying out the temperature region division of the rail refrigerated vehicle during refrigeration mode operation and freezing mode operation, and judging the temperature region of the refrigerated vehicle based on the air supply temperature in the rail refrigerated vehicle in the refrigeration mode; in the freezing mode, the temperature area where the refrigeration vehicle is located is judged based on the return air temperature in the rail refrigeration vehicle, and refrigeration temperature control adjustment and freezing temperature control adjustment are conducted through different control strategies according to the temperature area where the refrigeration vehicle is located; whether defrosting conditions are met or not is judged in the refrigeration mode and the freezing mode, and defrosting is conducted; and whether shutdown conditions are met or not is judged in the refrigeration mode and the freezing mode, if yes, a shutdown program is started, and if not, a safety protection program is started, and data collection and monitoring, alarm monitoring and output are sequentially carried out. Precise temperature control is beneficial to keeping freshness and quality of goods, and loss caused by temperature fluctuation is reduced.
本发明提出了一种轨道冷藏车辆专用变工况制冷机组容量调节方法及系统,包括:分别对轨道冷藏车辆冷藏模式运行和冷冻模式运行时进行温区划分,冷藏模式基于轨道冷藏车辆内送风温度判断冷藏车辆所处温区,冷冻模式下基于轨道冷藏车辆内回风温度判断冷藏车辆所处温区,根据所处温区采用不同的控制策略分别进行冷藏温控调节和冷冻温控调节;在冷藏模式和冷冻模式下分别判断是否符合除霜条件并进行除霜;在冷藏模式和冷冻模式下分别判断是否符合停机条件,若是则启动停机程序,若否则启动安全保护程序并依次进行数据采集及监视、报警监视及输出。本发明精确的温度控制有助于保持货物的新鲜度和质量,减少因温度波动导致的损失。
Capacity adjusting method and system for variable working condition refrigerating unit special for rail refrigerated vehicle
一种轨道冷藏车辆专用变工况制冷机组容量调节方法及系统
07.01.2025
Patent
Elektronische Ressource
Chinesisch
IPC: | B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES |
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