| 摘要 |
A waste water tank (1) comprising a heat exchanger has an inlet duct (3) for carrying waste water to the tank and an outlet duct (4) for removing waste water in which the ducts open into the bottom (2) of the tank (1) respectively via an inlet aperture (5) and an outlet aperture (6), said ducts (3, 4), being interconnected and enlarged a short distance from the respective inlet and outlet apertures (5, 6) and are each at least 4 times larger, in cross- sectional area, than the respective passages of the ducts (3, 4), and in which the interconnection between the ducts (3, 4) comprises a duct (13) from respective downward extending ducts (11, 12). <IMAGE> |
