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 (50, 51, 52) disposed so as to be aligned along a surface of the circumferential edge section, the plurality of pipes (50, 51, 52) circulating the refrigerant that is warmed by a compressing action of a compressor (611, 621), wherein the plurality of pipes (50, 51, 52) comprise a first annular pipe and a second annular pipe; and wherein the plurality of pipes (50, 51, 52) individually belong to a plurality of refrigeration circuits (60, 610, 620) 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 (281, 282), 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 (50, 51, 52) 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 (50, 51, 52) disposed so as to be aligned along a surface of the circumferential edge section, the plurality of pipes (50, 51, 52) circulating the refrigerant that is warmed by a compressing action of a compressor (611, 621), wherein the plurality of pipes (50, 51, 52) comprise a first annular pipe and a second annular pipe; and wherein the plurality of pipes (50, 51, 52) individually belong to a plurality of refrigeration circuits (60, 610, 620) 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 (281, 282), 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 (50, 51, 52) are in contact with the metallic plate member that is located on an inner surface side of the circumferential edge section.