SAFETY DEVICE OF OPEN TYPE BURNER

摘要

PURPOSE:To obtain a safety device which has a fine responsibility and imparts the alarm or carry out extinction accurately in oxygen deficient state by a method wherein the displacement for of a deformation element installed outside a combustion cylinder located on or near the cylinder is so applied to an interlocking device at the time of temp. fall that the device is disconnected from a mating part. CONSTITUTION:A one-way-opened door 12 installed at the tip of a bimetal 5 touching an interlocking device 8 is freely opened in a displacement direction at the time of temp. rise. When oxygen deficient state is formed, the temp. on or near the outer surface of a combustion cylinder 4 falls down. Then a bimetal 5 installed on or near the outer surface of the cylinder 4 is displaced to rotate the device 8 with an inverse L-shaped tip part in the direction of the arrow. Then, the inverse L-shaped device 8 is disconnected from a mating part 13 and falls down by the use of a spring 10 force or under its own weight and a switch 6 is operated so that an alarmer 25 is lighted or sounded or extinc tion is carried out by a solenoid 30. Even if the one-way-opened door 12 placed at the tip of the bimetal 5 touches the device 8 during the time of temp. rise, the door 12 opens and passes over the device 8 easily.