| 摘要 |
PURPOSE: An anti-freezing system for a hot water boiler is provided to prevent a boiler from rupturing while freeze protection pipes are closely placed to a hot water supply pipe and a tap water pipe. CONSTITUTION: An anti-freezing system for a hot water boiler comprises a boiler device(10), a vertical pipe(20), a heating water supply pipe(30), a heating water return pipe(40), a hot water pipe(50), and first/second freeze protection pipes(60,70). One end of the vertical pipe is connected to a water pipe, and the other end is connected to the boiler device. The vertical pipe supplies water to the boiler device. One end of the heating water supply pipe is connected to the boiler device, and the other end is extended to the outside. The hot water heated in the boiler device circulates through the heating water supply pipe. One end of the heating water return pipe is connected to the heating water supply pipe, and the other end is connected to the boiler device. The heating water return pipe collects the circulated hot water. The hot water heated in the boiler device is supplied to the hot water pipe. The first freeze protection pipe branches from the heating water supply pipe, and is placed near the hot water pipe. The second freeze protection pipe branches from the heating water return pipe, and is placed near the vertical pipe. |
