| 摘要 |
<p>A gas burner assembly of modular construction enabling the configuration to be varied to suit boiler of different types comprises a main burner (1), a control arrangement (3) including valves for controlling supply of gas to the burner, a manifold (2) made as a metal casting and including respective gas passages for conducting main gas and pilot gas, and an inlet shroud (7) interconnecting the main burner and manifold, the inlet shroud including a bracket (105) for mounting the pilot burner (102) and associated control devices (103, 104) and having a duct formed within its wall for carrying gas from the manifold to the pilot burner. The control arrangement (3) has alternative mounting locations on side and end faces for connection of the manifold thereto. <IMAGE></p> |
