| 摘要 |
PCT No. PCT/AU89/00082 Sec. 371 Date Dec. 28, 1989 Sec. 102(e) Date Dec. 28, 1989 PCT Filed Mar. 1, 1989 PCT Pub. No. WO89/08074 PCT Pub. Date Sep. 8, 1989.A python for maintaining the drinking liquid flowing in lines therein at a predetermined temperature has a drinking liquid delivery line adapted to deliver drinking liquid, coolant tubes adapted to carry coolant and insulator tubing arranged in that order concentrically outwardly. The central drinking liquid delivery line consists of a central drinking liquid tube surrounded by secondary drinking liquid tubes. The central drinking liquid delivery line is in thermal contact with and surrounded by the coolant tubes. The coolant tubes are surrounded by insulator tubing in such a way as to restrict the free movement of both the drinking liquid delivery line and coolant tubes. The drinking liquid is thereby maintained at a predetermined temperature by the temperature of the coolant and the effect of the above-mentioned concentric arrangement of drinking liquid delivery line, coolant tubes and insulator tubing. |
