Control method and device of filled water volume in fluid space

Abstract

There are provided a control method and a device of a filled water volume in a fluid space through which the fluid space can be filled with water while preventing a pipe in the fluid space from making contact with the filling water by controlling the filled water by controlling the filled water volume. The control method of a filled water volume in a fluid space requiring a water filling test includes disposing a pipe in the fluid space and enclosing the pipe with an enclosure, detecting pressure of a water filled portion in the fluid space or outside of the enclosure; and controlling, based on the detected pressure, the volumes of filling fluid and water to a water filling portion in the fluid space inside and outside the enclosure, such that the pressure in the enclosure becomes higher than the pressure at the water filling part in the fluid space outside the enclosure.

Dependencies are inferred from the claim text.