| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce labor and repair costs in a case where a reversal sealing method and a non excavation resin lining method are implemented in the same pipe retreatment and repair site. SOLUTION: The water supply device is comprised of a feed water pump, a heating member, an electromagnetic valve connected to the outlet of the feed water pump, a water meter M that measures the quantity of water supplied to the feed water pump, and a control unit that opens and closes the electromagnetic valve. In a reversal sealing method, a warm water tank T1 is connected to the water intake of the feed water pump, piping 1 is connected to the outlet, thereby conducting warm water heated with a heater and a heat exchanger to the piping 1. In a non excavation resin lining method, a water tank is connected to the water intake of the feed water pump, one end of the piping is connected to the outlet, and the control unit, on the basis of a measurement of the water meter M, closes the electromagnetic valve when the quantity of water from the feed water pump reaches a prescribed level.</p> |
