| 摘要 |
<p>A manifold (1) connects three boiler circuits (3, 4, 5) and a heat exchanger circuit (6) and an indirect cylinder heat exchanger circuit (7) of a central heating system (2) together. The manifold (1) comprises a container (20) which defines a hollow interior region (25) which is divided by a horizontally extending partition plate (28) into an upper flow water region (28) and a lower return water region (29). First ports (35) are provided for connecting flow pipes of the circuits (3 to 7) into the flow water region (29) of the manifold (1) and second ports (36) are provided for connecting the return pipes (16) of the circuits (3 to 7) into the return water region (30) of the manifold (1). A communicating opening (32) and apertures (38) in the partition plate (28) communicate the flow and return water regions. The partition plate (28) stratifies the water within the hollow interior region so that the hottest flow water is above while the cooler return water is below the partition plate (28). The manifold (1) forms a neutral pressure point in the system (2) so that the circuit (3 to 7) can operate independently of each other, while at the same time, the circuits (6, 7) operate in association with the boiler circuits (3, 4, 5).</p> |
