Problem: the height of the whole device is suppressed.Solution: the tank main body 150 and an inner pipe 102 on which one end surface is bonded to the bottom surface 105 of the main body 150 of the tank, and an outer pipe 101 having one end surface adhered to the bottom surface 105, and the bottom surface 105 are in contact with a hole 103 provided inside the end face to which the inner tube 102 is adhered and an inner pipe 102 A hole 104 provided inside the end surface of the outer tube 102 is attached to the outside of the end face.Diagram【課題】装置全体の高さを抑える。【解決手段】水槽本体１５０と、水槽本体１５０の底面１０５に一方の端面が接着された内管１０２と、底面１０５に一方の端面が接着された外管１０１とを有し、底面１０５は、内管１０２が接着された端面の内側に設けられた孔１０３と、内管１０２が接着された端面の外側であって外管１０２が接着された端面の内側に設けられた孔１０４とを設ける。【選択図】図１
