| 摘要 |
<p>PURPOSE:To improve solubility and heat recovery efficiency of CO2 by a method wherein tap water is supplied to a gas/water contact chamber which recovers waste heat from an exhaust of a heat exchanger for feeding hot water and converges on a distribution pipe for supplying warm water obtained here to a bath tub to lower the temperature of the gas/air contact chamber. CONSTITUTION:A hot water supply piping 4 is arranged to supply a hot water to a hot water supply cock 3 or the like from a heat exchanger 2 for supplying hot water which heats tap water with a gas burner 1. A branch pipe 6 is arranged to supply the hot water to a bath tub 5 from the hot water supply piping 4. Moreover, exhaust gas from the heat exchanger 2 for supplying hot water is brought into contact with water and the tap water from a water supply pipe 8 is supplied to a gas/water contact chamber 7 for recovering waste heat. Then, the warm water obtained here is made to converge on the branch pining 6. On the other hand. the branch piping 6 is connected to a followup boiling piping 10 adapted to circulate the hot water to the bath tub 5 from a heat exchanger 9 for followup boiling. In other words, as the water to be supplied to the gas/water contact chamber 7, the tap water is supplied directly, not the warm water from the heat exchanger 2. Thus, the temperature of the gas/air contact chamber 7 is lowered thereby improving the solubility and the heat recovery efficiency of CO.</p> |
