| 摘要 |
For heating or cooling the content of a tank, flow paths for a temperature controlling medium are provided in the form of longitudinal channels 13 of closed hollow profile separate from the tank envelope 12. The channels 13 are connected at either end to collecting channels 14 extending in the peripheral direction of the envelope 12 to form an internally continuous channel system. This channel system may be produced separately of the tank as a generally trough shaped structure and, after the tank has been placed therein, fixed to the tank and kept in close proximity to the tank envelope 12 by an insulation 16, 17 which surrounds the overall structure.
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