| 摘要 |
<p>Device for a heating installation with a combustion chamber (3) for a burner, said combustion chamber (3) being surrounded with a double envelope traversed by the fluid to be heated. To improve its efficiency, there is provided before the double envelope a register (11) arranged in the combustion chamber and exposed to the flame. To further improve its efficiency, there is also provided at the inlet of the register (11) a restriction valve which is actuated as a function of the fluid temperature, which enables, by means of the flow restriction, to maintain the temperature difference between the inlet and the outlet of the fluid at a relatively high value, even when the fluid temperature increases.</p> |
