| 摘要 |
The invention relates to waste water piping with heat exchanger for bathing installations, for example a shower unit, which consists of basin (9), coarse and fine filters of waste water (11, 13), trap (12), heat exchanger (5), level controller (16) and air by-pass pipe (18), wherein in the waste water pipe (15) exiting the heat exchanger (5) a vertical level controller (16) is used creating an overflow barrier allowing emptying of the heat exchanger. The air by-pass pipe (18) positioned higher than the bottom of basin (9) by-passes heat exchanger (5) and level controller (16) channels air beyond trap (12) into sewage (17) via waste water drain (20). The heat exchanger (5) is preferably a heat exchanger element (31) made of copper pipes wound in reverse directions, which is preferably placed inside the wider section of waste water piping (30) so that this section of the piping is constantly filled with waste water with the aid of the level controller (16), and the heat exchanger element (31) connected at one end through the end cap (34) of the waste water pipe (30) can be easily removed under sanitary conditions using a plastic bag longer than the heat exchange element as a protective cover for the latter, which is placed with its mouth over the waste water pipe (30) from the side of end cap (34). |
