果蔬温度梯度冷库的设计和应用研究-制冷与低温工程专业论文.docxVIP

ABSTRACT 句 如 电 、 区?、 吨 The sωrage factors‘ such as the reserve temperature and the relatively humidity， are the crucial factors of the technology on the storage of fruit and vegetable ，so the study on the foundation storage facilities is particularly important.ηle paper designed and constructed a kind of temperature gradient storehouse of fruit and vegetable， which provided the condition facilityωthe critical factors of the control of the technology on the storage of 仕uitand vege阳ble. Based on the simulation of the temperature gradient storehouse under different. conditions by using so优ware of ANASYS ，the temperature gradient storehouse was designed.ηle temperature gradient storehouse of fruit and vegetable uses the mother son substructure ，which consist of the static chamber，the buffer room and the gradient room，and use the special refrigeration equipment， BK-120. And the temperature gradient storehouse selects the all closed ωmpressor and the air-cooled evapor.翩。巳 The temperature. difference of the gradient room can be set within 土0.5 .C，and the temperature di仔erence of the static chamber and the gradient room 3.C ， under the microcomputer control system. And configure the static pressure air blower in the gradient room ，and the delivery speed of the air blower is 2.5m/s，the diameter ofthe inlet velocity profile is O.2-O.3m. 丁he temperature difference of the gradient room at different levels were within 士O.5 .C which is after the temperature and humidity field 阳况， under the two states of the empty room and the loading 什uits and vegetables room.ηle temperature which close to the ground level ís lower than other level in the gradient room ，and compared with the position of the top and the bottom ，the temperature of the middle position is uniform ，and the inhomogeneity of the top position of the temperature field is significantly higher than other locations，which similar ωthe results of the numerical simulation，and it can meet the needs of fru