EXPLOSION-PROOF REFRIGERATOR AND REFRIGERATION APPARATUS INCLUDING EXPLOSION-PROOF TYPE REFRIGERATOR

摘要

PROBLEM TO BE SOLVED: To provide a new explosion-proof refrigerator having a positive explosion-proof and provide a refrigerator device including this explosion-proof refrigerator.;SOLUTION: Although a refrigeration cycle is constituted by four steps of compression, condensation, expansion and evaporation and in general all these four steps are configured with pressure more than atmospheric pressure and it has almost no occurrence that air enters a refrigerant piping even if cracks or somethings occur at a part of the piping. However, the freezing cycle of cryogenic temperature has partially a part of which pressure is less than the atmospheric pressure and if the partial piping shows occurrence of cracks or the like there occurs a possibility that air enters inside of it. In view of this fact, there is provided a mechanism for detecting inner pressure by a pressure switch even if the occurrence of cracks may be found, it does not become an ignition source to enable the presence or non-presence of the cracks and the like to be detected and there is provided a special explosion-proof mechanism for cutting-off the power supply to prevent explosion as soon as occurrence of abnormal state is found.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2018,JPO&INPIT