PIPE CONTAINING DOUBLE CONDUITS UNIFYING A PIPE FOR DRINKING WATER AND A PIPE FOR HEATING, AND FREEZE-BREAKAGE PREVENTIVE STRUCTURE USING THE SAME

摘要

PURPOSE: A pipe containing double conduits and a freeze-breakage preventive structure using the same are provided to prevent a water pipe from bursting away in the cold weather with the double conduits. CONSTITUTION: A pipe includes an inner conduit(1) through which drinking water flows and an outer conduit(2) through which heating water flows. Couplings(4) are located on the lower and upper portions of the inner conduit to supply/discharge the drinking water. Couplings are located on the right and left portions or the upper and lower portions of the outer conduit to be connected to heating water supply and recovery units. Barriers(3) are formed in certain intervals from the upper or lower portion of the pipe to flow the heating water from the heating water supply unit throughout the surroundings of the inner conduit. When using only cold water in the warm weather, a cut-off valve and a T-shaped socket are used to cut off the heating water from a heating unit.