Chiller heater and method of modification

摘要

In an absorption type chiller heater, a generator (1) is heated in order to heat a refrigerant-mixed solution to generate refrigerant vapor. This heating is generally carried out by causing high-temperature combustion gas to flow in contact with heat transfer fins (1a), which are provided on the periphery of the generator (1). The aforesaid burner uses a burner (8) of liquid-fuel combustion structure to produce a longer flame as compared to that of a gas burner. The extremity of the lengthened flame coming into contact with the heat transfer fins can cause problems such that the fins are locally overheated to burn out. Accordingly, the present invention arranges a flame buffer plate (13) between the liquid fuel burner and the heat transfer fins and provides a curved flame channel. This forms a curved flame, whereby the flame, despite of its great length, is kept from its extremity coming into contact with the heat transfer fins. <IMAGE>