Compressing device and method for carrying out compressing device

A compressing device comprising:

• a compressor having a cylinder portion configured to form a compression chamber in which gas is compressed;
• a housing having a peripheral wall configured to form an internal space in which the compressor is stored;
• and
• a supporting member situated above the compressor in the internal space,
• wherein the peripheral wall includes an opening wall in which a carry-out port is formed so that the cylinder portion is carried out through the carry-out port, and
• wherein the supporting member extends to guide movement of a first lifting device between a position above the compressor and a position above the carry-out port, the cylinder portion being hung from the first lifting device.