COMBUSTION FACILITY

• Main Author: KAWABATA KENSUKE
• Format: Patent
• Language: English; Japanese
• Published: 29.06.2022
• Subjects: BLASTING; COMBUSTION APPARATUS; COMBUSTION PROCESSES; HEATING; LIGHTING; MECHANICAL ENGINEERING; REGULATING OR CONTROLLING COMBUSTION; WEAPONS

To detect a combustion state in a burner, easily make adjustment so that a ratio between combustion air and fuel gas reaches an intended ratio and maintain the good combustion state.SOLUTION: In a combustion facility, air supplied through an air supply pipe 20 and fuel gas supplied through a fuel supply pipe 30 are mixed and burned by a burner 10. An equalizer valve 31 is provided in the fuel supply pipe, and air is supplied from the air supply pipe to the equalizer valve through a connecting pipe 41. The combustion facility includes an oxygen sensor 51 detecting an oxygen concentration in combustion exhaust gas that has burned by the burner. The combustion facility also includes an air ratio control device 50 controlling pressure of air guided from the air supply pipe to the equalizer valve through the connecting pipe on the basis of the oxygen concentration in the combustion exhaust gas detected by the oxygen sensor.SELECTED DRAWING: Figure 1 【課題】 バーナーにおける燃焼状態を検知し、簡単に燃焼用空気と燃料ガスとが所望の割合になるように調整して、良好な燃焼状態を維持できるようにする。【解決手段】 空気供給管20を通して供給される空気と、燃料供給管30を通して供給される燃料ガスとを混合させて、バーナー10により燃焼させる燃焼設備において、燃料供給管に均圧弁31を設け、この均圧弁に空気供給管から導圧管41を通して空気を導くと共に、バーナーにより燃焼された後の燃焼排ガス中における酸素濃度を検出する酸素センサー51を設け、酸素センサーによって検出された燃焼排ガス中における酸素濃度に基づいて、空気供給管から導圧管を通して前記の均圧弁に導かれる空気の圧力を制御する空気比制御装置50を設けた。【選択図】 図１