The liquid nitrogen refrigeration system comprises a liquid nitrogen tank, a controller, an atomization device and a temperature sensor assembly, the atomization device and the temperature sensor assembly are arranged in a goods storage chamber of the refrigerator car, and the temperature sensor assembly is used for detecting temperature data in the goods storage chamber in real time. The atomization device is used for spraying atomized nitrogen into the goods storage chamber, and the liquid nitrogen tank communicates with the atomization device through a liquid nitrogen conveying pipeline connected with an electromagnetic flow valve; the controller is used for controlling opening and closing of the electromagnetic flow valve according to temperature data in the goods storage chamber and a set target temperature range. And after the electromagnetic flow valve is opened, the valve opening degree of the electromagnetic flow valve is adjusted according to the difference value between the temperature data and the set target temperature range and the preset incidence relation between the difference value and the valve opening degree. By the adoption of the technical scheme, the accuracy of controlling the refrigeration temperature can be improved, the using amount of liquid nitrogen in the refrigerator car is reduced, and promotion and popularization of the liquid nitrogen refrigerator car are facilitated.
本发明实施例公开了一种基于液氮制冷的冷藏车及液氮制冷系统,液氮制冷系统包括液氮罐、控制器以及设置在冷藏车储货室内的雾化装置和温度传感器组件,温度传感器组件用于实时检测储货室内的温度数据,雾化装置用于向储货室内喷洒雾化氮气,液氮罐与雾化装置之间通过连接有电磁流量阀的液氮输送管路连通;控制器用于根据储货室内的温度数据与设定目标温度范围的控制电磁流量阀的开闭;以及,在电磁流量阀开启后,根据温度数据与设定目标温度范围之间的差值及差值与阀门开度之间的预设关联关系调整电磁流量阀的阀门开度。采用本发明的技术方案,可以提高控制冷藏温度的精确度,并减少冷藏车中液氮使用量,有助于促进液氮冷藏车的推广普及。
Refrigerator car based on liquid nitrogen refrigeration and liquid nitrogen refrigeration system
一种基于液氮制冷的冷藏车及液氮制冷系统
2023-04-14
Patent
Elektronische Ressource
Chinesisch
IPC: | F25D REFRIGERATORS , Kühlschränke / B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht / B60P Fahrzeuge zum Transport von Lasten oder zum Befördern, Tragen oder Aufnehmen besonderer Lasten oder Gegenstände , VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS |
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