WATER FLOW ENERGY SUPPRESSOR Russian patent published in 2021 - IPC E02B8/06 

FIELD: hydraulic engineering.

SUBSTANCE: invention relates to hydraulic engineering and can be used in the terminations of closed pipelines and tunnel structures. The energy extinguisher contains a water duct 1, a well 2, which is additionally equipped with a rotating slow-moving well 8 inside. The lower part of the inlet holes 9 has axisymmetric directions towards the water duct. An additional low-speed rotating well 8 is fixed to the shaft 4 with a drive on top of the cover 3. On the outside of the slow-moving well 8, support rotating rollers 10 are fixed evenly along the circumference from above and from below, and the blades 7 of the slow-moving well 8 are made of an elastic plate and have an axisymmetric transverse section with the shaft in the lower part, and a confuser 11 fixed to the blades 7 of the slow-moving well 8 and installed with the shaft. The confuser 11 is an ellipse, in which the ratio of the length of the minor axis to the diameter of the blades is determined by a special condition of the equations. The turbine 5 is made of a screw-blade with the possibility of free rotation from the water pressure relative to its axis 6 and is attached to the shaft 4, which is fixed to the drive on the cover 3 of the well 2. A horizontal shelf 12 is placed on the inner side walls of the additional well 8, made in the form of an annular reflector in the additional well 8. The turbine 5 is installed in the confuser 11 with a gap. The vertical well 2 in the upper part is provided with an outlet 13 arranged at a level coinciding with the mark of the bottom of the discharge tray 14, the bottom of which is connected to the discharge pipeline 15 with a regulating valve 16. The side walls of the additional slow-moving well 8 in the upper part are connected by rigid rods 17 with the shaft 4, and in the lower part the side walls of the well 8 are rigidly connected to each other by rods 18.

EFFECT: in all sections, the flow is intensively extinguished as a whole, a high degree of protection of the well is achieved, made of two devices relative to each other in relation to the middle part of the rotation shaft and operating from the dynamic effects of the excess energy of the high-speed flow of the supply water duct, which will increase the reliability of the device, and the cost of construction is reduced.

1 cl, 2 dwg