| 摘要 |
PURPOSE:To assure a stable operating pressure, expand an operating surrounding air range and extend a life of a freezer device by a method wherein an outer surface of an air heat exchanger is provided with an air protector for sensing a surrounding air temperature and slid upwardly or downwardly in order to prevent variation of a condensing pressure caused by natural wind. CONSTITUTION:An air type freezer device is comprised of a compressor, an evaporator, an air-cooled condensor and a pressure reducer. In this case, in order to prevent variation of condensing pressure caused by natural wind, an outer surface of the air side heat exchanger is provided with an air protection device 3 for sensing a surrounding air temperature and slid upwardly or downwardly. Then, the air protection device 3 is constructed in such a manner that it can be slid upwardly or downwardly by winding a flexible air protecting plate 5 with a winding mechanism 6. With such an arrangement, disturbance caused by natural wind in the air-cooled type freezer device is prevented, thereby a stable operation is assured, an operating surrounding air range is expanded and a life of the freezer device is extended. |
