The invention discloses a liquid nitrogen refrigeration sample working vehicle with temperature regulation and control, and relates to the technical field of low-temperature transfer trucks, the liquid nitrogen refrigeration sample working vehicle comprises a carriage arranged at the top of a frame, the carriage comprises a shell with an upward opening, a cooling box arranged in the shell, and an air duct arranged between the cooling box and the side wall of the shell; a nitrogen inlet pipe communicated with the air duct is arranged in the cooling box body, a second low-temperature electromagnetic valve is arranged on the nitrogen inlet pipe, and a first temperature sensor and a nitrogen concentration detector are arranged in the cooling box body; a nozzle used for spraying liquid nitrogen, a temperature adjusting mechanism used for vaporizing and adjusting the temperature of nitrogen and a wind wheel enabling the liquid nitrogen to circulate in the air duct are arranged in the air duct, and a first low-temperature electromagnetic valve is arranged on a connecting pipeline of the nozzle; a control system is further included. The design is reasonable, a compressor is not used, precise liquid nitrogen refrigeration is used, and the temperature under the ultralow temperature condition can be achieved; the size, noise and failure rate of the working vehicle are reduced, and the maintenance cost is reduced.
本发明公开了一种利用液氮制冷具备温度调控的样本工作车,涉及低温转运车技术领域,包括设置车架顶部的车厢,车厢包括开口向上的壳体、设置在壳体内的冷却箱体、设置在冷却箱体与壳体侧壁之间的风道;冷却箱体内设置有与风道之间通过氮气进气管连通,氮气进气管上设置有第二低温电磁阀,冷却箱体内设置有第一温度传感器和氮气浓度检测仪;风道内设置有用于喷淋液氮的喷嘴、用于汽化以及调节氮气温度的温度调节机构以及使得液氮在风道内循环的风轮,喷嘴的连接管道上设置有第一低温电磁阀;还包括控制系统。发明设计合理,不使用压缩机,使用精准的液氮制冷,可以实现超低温情况下的温度;减少工作车的体积、噪音、故障率,降低维护成本。
Liquid nitrogen refrigeration sample working vehicle with temperature regulation and control function
一种利用液氮制冷具备温度调控的样本工作车
2024-12-10
Patent
Electronic Resource
Chinese
Refrigerator car based on liquid nitrogen refrigeration and liquid nitrogen refrigeration system
European Patent Office | 2023
|Low-temperature refrigeration nitrogen-making oil tank inerting system and working method thereof
European Patent Office | 2020
|