| 摘要 |
It makes it possible to maintain the fluid to be purified free of substantial drops in temperature, said fluid being conveyed by a collector 2. It consists in providing a first cladding 1 which surrounds the conduit 2 for transporting the fluid, passing a thermal fluid through the annular chamber 3 formed. There is a second cladding 4, for thermal insulation 5, in order to ensure minimum heat transfer to the outside. Irrespective of the type, the actual filter may also be provided with the double cladding 7, 8. <IMAGE>
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