ANTIFREEZING DEVICE FOR LOAD SIDE PIPELINE IN HOT-WATER BOILER SYSTEM

摘要

PURPOSE: To contrive the efficient antifreezing of a load side line by a method wherein the circulating pump of the load side pipeline is operated automatically and the retaining heat of a hot-water boiler is utilized effectively. ;CONSTITUTION: In a hot-water boiler system, consisting of a hot-water boiler 1, provided with anitfreezing combustion function, and a load side pipeline 3, equipped with a circulating pump 8 and connected to the hot-water boiler 1, the load side pipeline 3 is provided with a temperature sensor 13, detecting a predetermined set temperature whereat the temperature of hot-water enters the dangerous zone of freezing in the load side pipeline 3, and a controller 14, controlling the operation of the circulating pump 8 on the basis of the detecting signal of the temperature sensor 13 and the information signal of the operating condition of antifreezing combustion of the hot-water boiler 1.;COPYRIGHT: (C)1995,JPO