A refrigeration apparatus configured to perform cooling through a refrigeration cycle using a refrigerant, the refrigeration apparatus comprising: a door ; a box section comprising a circumferential edge section that faces an outer circumferential portion of the door with the door closed, wherein an interior of the box section is cooled by the refrigerant; packing configured to be held between the outer circumferential portion of the door and the circumferential edge section with the door closed ; and a plurality of pipes disposed so as to be aligned along a surface of the circumferential edge section , the plurality of pipes circulating the refrigerant that is warmed by a compressing action of a compressor , wherein the plurality of pipes comprise a first annular pipe and a second annular pipe ; and wherein the plurality of pipes individually belong to a plurality of refrigeration circuits that are independent of each other; characterized in that the second annular pipe is disposed in such a manner as to be superposed on an outer circumferential side of the first annular pipe so as to wrap around the first annular pipe ; the box section comprises an inner box section and an outer box section that covers the inner box section , and the box section further comprises a first and second collar section , which is a metallic plate member that is fixed to an inner surface of the circumferential edge section and an inner surface of the outer box section , the inner surface of the outer box section being located on a side facing the circumferential edge section ; and the plurality of pipes are in contact with the metallic plate member that is located on an inner surface side of the circumferential edge section . a door ; a box section comprising a circumferential edge section that faces an outer circumferential portion of the door with the door closed, wherein an interior of the box section is cooled by the refrigerant; packing configured to be held between the outer circumferential portion of the door and the circumferential edge section with the door closed ; and a plurality of pipes disposed so as to be aligned along a surface of the circumferential edge section , the plurality of pipes circulating the refrigerant that is warmed by a compressing action of a compressor , wherein the plurality of pipes comprise a first annular pipe and a second annular pipe ; and wherein the plurality of pipes individually belong to a plurality of refrigeration circuits that are independent of each other; characterized in that the second annular pipe is disposed in such a manner as to be superposed on an outer circumferential side of the first annular pipe so as to wrap around the first annular pipe ; the box section comprises an inner box section and an outer box section that covers the inner box section , and the box section further comprises a first and second collar section , which is a metallic plate member that is fixed to an inner surface of the circumferential edge section and an inner surface of the outer box section , the inner surface of the outer box section being located on a side facing the circumferential edge section ; and the plurality of pipes are in contact with the metallic plate member that is located on an inner surface side of the circumferential edge section . <EOS>