| 摘要 |
A tubular heat exchanger (1) for mounting in a bore of a building, the heat exchanger (1) comprising a tubular outer casing (3) and a fan housing (2), at least one heat exchanger element (11) being provided within the tubular outer casing(3). The tubular outer casing (3) and heat exchanger element (11) are arranged to define a supply fluid channel and an exhaust fluid channel. The fan housing (2) is mounted at one end of the tubular outer casing (3) and is provided with two impellers (29, 31), one impeller (31) being operative to force supply fluid through the supply fluid channel and the other impeller (29) being operative to force exhaust fluid through the exhaust fluid channel such that heat is recovered from the exhaust fluid into the supply fluid. The fan housing (2) is movably mounted on the tubular outer casing (3) by a mechanical joint (41) operative such that the fan housing (2) may be moved relative to the tubular outer casing (3) whilst remaining sealingly connected thereto. This enables the relative position of the fan housing (2) and tubular outer casing (3) to be adjusted to allow for the bore in the building not being perpendicular to the wall of the building against which the fan housing (2) is mounted. |
