Chemical reaction furnace system
AssigneeKawasaki Jukogyo Kabushiki Kaisha
InventorsMasanobu Inubushi, Hajime Yamamoto, Osamu Nagata
Life of this patent
Estimating the term…
Abstract
A chemical reaction furnace system having a reaction furnace, a reaction gas exhaust flowpath, and a gas scrubbing device in the exhaust flowpath and having a capability of controlling the furnace top pressure is characterized by the provision of a turbine in the exhaust flowpath downstream from the scrubbing device and being operable to recover energy in the reaction gas, a gas bypass flowpath branched from said exhaust flowpath at a point thereof between the scrubbing device and the turbine and bypassing the turbine, and a bypass valve installed in the bypass flowpath, the turbine inlet gas pressure being controlled by a turbine governor.
Claims6
A chemical reaction furnace apparatus having a reaction furnace (3), a reaction gas main flowpath for conducting reaction gas away from the top of the reaction furnace, and a reaction gas scrubbing device (5) installed in said main flowpath and being adapted to control the presence of the reaction gas in the top of the reaction furnace, said apparatus comprising:
- an expansion turbine (9) provided in the gas main flowpath downstream from said scrubbing device (5) and being operable to utilize energy in the reaction gas;
- a gas bypass flowpath (16) branched from said main flowpath at a point between said scrubbing device (5) and said turbine (9) and bypassing the turbine;
- a bypass valve (12) disposed in said bypass flowpath;
- a turbine inlet pressure detector (14) for detecting inlet gas pressure of the turbine;
- a turbine speed regulating valve (8) installed in said main flowpath between said detector (14) and said turbine (9);
- and a turbine governor (B) receiving a signal from said detector (14) to control said turbine speed regulating valve (8) for maintaining the inlet gas pressure of the turbine at the highest possible value at which the scrubbing performance of said scrubbing device (5) can be maintained.
Dependencies are inferred from the claim text.