SAFETY CONTROL SYSTEM FOR SAFE COMBUSTION OF GAS BOILER

• Main Author: LEE, JUN SU
• Format: Patent
• Language: English
• Published: 15.12.2000
• Edition: 7
• Subjects: BLASTING; FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEATGENERATING MEANS, IN GENERAL; HEATING; LIGHTING; MECHANICAL ENGINEERING; RANGES; VENTILATING; WEAPONS

PURPOSE: A safety control system for safe combustion of gas boiler is provided to inhibit incomplete combustion as maximum as possible so as to prevent carbon monoxide from being discharged excessively. Also, the system is provided to allow the combustion to be normally carried out independently with the variations of atmospheric pressure and temperature as well as to use remain gas completely in case that a LPG bomb is used. CONSTITUTION: A safety control system for safe combustion of gas boiler is provided in a boiler of an overall primary combustion type. The safety control system is comprised of a feed air fan(100) including an intake inlet(110) connected to a gas pipe(200) and a discharge outlet(120) for discharging the gas and the air induced through the intake inlet(110) toward a burner(300) side, the feed air fan generating minus pressure of high load upon its operation; a gas valve(400) for allowing gas discharged when a first solenoid valve(420) is opened under the open state of atmospheric pressure side according to an operation of the feed air fan(100) and, simultaneously, a second solenoid valve(430) is sequentially opened to be induced into the feed air fan(100) through a nozzle(440) and the gas pipe(200); and an air damper(500) for forcedly mixing the gas and the external air at a ratio of 1 to 1 when the gas is discharged form the gas valve(400) and then supplying the mixture to the burner(300) side.