Gas safety control system

摘要

PCT No. PCT/JP96/01305 Sec. 371 Date Jan. 29, 1998 Sec. 102(e) Date Jan. 29, 1998 PCT Filed May 17, 1996 PCT Pub. No. WO96/36853 PCT Pub. Date Nov. 21, 1996The present invention relates to a gas safety control system for supplying a gas that is forwarded from a gas supply source through an inspection meter to one or more gas appliances. The inspection meter comprises a cutoff valve for cutting off supply of the gas from the gas supply source, a detection unit for detecting such abnormal condition as gas leakage and abnormal flow rate of the gas, a valve control unit for actuating the cutoff valve when the detection unit detects an abnormality and a meter communication unit for outputting cutoff information indicating that the supply of gas is cut off by the cutoff valve. The gas appliance comprises an appliance communication unit for communicating with the meter communication unit and a combustion disabling unit for switching the gas appliance to a combustion disabled state, if it is in a combustion enabled state, when the cutoff information is received through the appliance communication unit. In the gas safety control system constituted in such manner, because the supply of gas and operation of the gas appliance are automatically discontinued when such abnormality as gas leakage is detected, gas explosion, gas poisoning and like accidents can be prevented.