Snow Brand Milk Products Co., Ltd.

Suzuki Metal Industry Co., Ltd.

Takashi Nakamoto

Kozo Taneda

Shigetoshi Takasu

Tatuo Asada

Mitsuo Oshiro

Tstomu Nakamura

Masao Kurihara

In a boiler or an industrial furnace, a temperature detecting sensor is mounted at the heat absorbing side of a heat pipe of a waste heat recovery device which is disposed in part of the path of exhaust gas. With an output signal of the temperature detecting sensor, a flow rate control valve is controlled, and a liquid discharging shield is utilized to maintain the flow rate of the liquid to be supplied in correspondence with the flow rate of the liquid to be discharged. The effective area of the heat pipes coming in contact with the liquid is varied to maintain the temperature at a heat absorbing side higher than the dew point of sulfur oxide, thus preventing the heat pipes from corrosion, exhaust ducts and so on, and allowing heat absorbing operation to be performed in accordance with the exhaust gas discharge temperature.

Waste heat recovery device for preventing corrosion by sulfur oxides

Growing community of inventors

Matsudo, Japan

Takashi Nakamoto