US 11,280,310 B2 · Hydraulic machine having a device for measuring the water level in the intake pipe and method for drainage

Abstract

A hydraulic machine has a runner, a guide apparatus, a draft tube, and an apparatus for measuring the water level in the region of the draft tube. The apparatus includes a first pressure measuring device, a second pressure measuring device, and a unit for generating differential pressure values. The pressure measuring devices are arranged in such a way that they may detect the pressures applied inside the draft tube and are respectively connected to the unit. The first pressure measuring device is located above the second pressure measuring device, and the unit is configured to generate the difference between the pressures that the pressure measuring devices detect. There is also described a method for dewatering the runner of such a hydraulic machine.

Claims4

Dependent claims

A hydraulic machine, comprising:

a runner, a guide apparatus, and a draft tube;
a level detector for measuring a water level in said draft tube, said level detector including a first pressure measuring device, a second pressure measuring device, and a unit for generating differential pressure values;
said first and second pressure measuring devices being disposed to detect pressures prevailing inside said draft tube and being connected to said unit;
wherein said first pressure measuring device is located above said second pressure measuring device and said unit is configured to generate a difference between the pressures respectively detected by said first and second pressure measuring devices.

1 more element

Dependencies are inferred from the claim text.

Hydraulic machine having a device for measuring the water level in the intake pipe and method for drainage

Life of this patent

Hydraulic machine having a device for measuring the water level in the intake pipe and method for drainage

Life of this patent

Abstract

Claims4