| 摘要 |
A waste water recycling and heat recovery system (10) comprises a pair of linked tanks (11 ), (12). The larger tank (11) is supplied with used bath and shower water while the smaller tank (12) is supplied from the cold water supply. A heat exchanger (19) is housed in the larger tank (11) and connects to an external hot water tank. Water is supplied from the system to toilets under control of a control system (25). In operation waste bath and shower water enters the system and has heat extracted from it by the heat exchanger (19) to pre heat the external hot water tank. The system provides a supply for toilets thus ensuring that both heat and the water itself from baths and showers is recycled. The clean water supply forms a layer at the bottom of the tanks which creates a cold water buffer which allows for a large temperature differential to exist between the tanks to allow effective extraction of heat from the water in the large tank (11). The system also works in conjunction with a solar panel system, the control system (25) monitors which part of the composite system has the highest temperature and operates so as to transfer that heat first to the external hot water tank transferring to the other source as the relative temperatures change. |
