摘要 |
Apparatus including an elongate pipe (1) for use in the transfer of fluids susceptible to form deposits on cooling such as wax deposits in oil, and a container (12) having a reusable heat source including a supercooled solution, e.g., of aqueous sodium acetate. The container (12) is in heat conducting contact with a surface of the pipe (1), preferably on at least one surface of the container. The deposit may be removed from inside the pipe (1) by locating in heat conducting relation to the pipe a reusable heat source including a supercooled solution, and activating crystallization in the solution liberating heat which causes at least some of the deposit to melt and/or dissolve.
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