| 摘要 |
PROBLEM TO BE SOLVED: To easily change an undamped natural frequency by correcting the shape of refrigerant piping or adding a weight to the refrigerant piping since the undamped natural frequency of the refrigerant piping does not go beyond the vibration frequency range of a refrigerant compressor when a refrigeration device is assembled due to fluctuation in manufacturing the refrigerant piping and the structure or the like of equipment parts and the refrigeration device being connected to the refrigerant piping. SOLUTION: The frame or the like of the refrigeration device is provided with a plurality of mounting holes at the same pitch for one fixing device for fixing refrigerant piping, thus easily changing the natural frequency of the refrigerant piping by changing a fixed position and preventing the refrigerant piping from being damaged due to the generation of a resonance phenomenon.
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