WATER FLOW RATE REGULATOR Russian patent published in 2021 - IPC G05D7/01 F16K7/17 

FIELD: hydraulic engineering.

SUBSTANCE: invention relates to hydraulic equipment and can be used to adjust the water flow rate at tubular and diaphragm water outlets. The water flow rate regulator comprises a water outlet pipe with a rectangular cross-section with a seat blocked with a shut-off body made in the form of a flexible tape fixed at one end to the upper wall of the water outlet pipe and at the other end to the seat at the base of the end wall of the water outlet pipe and forming a control cavity with the body of the water outlet pipe, communicating with the upper pool and equipped with a drainage apparatus, installed whereon is a valve connected by a rod with the membrane of the membrane body, the cavity whereof is connected with the upper pool, a threshold located on the edge of the seat on the side of the upper pool, made in the form of a spillway with a vacuum curvilinear profile and turned in the direction of contact with the flexible tape and with a height the greater, the greater the rigidity of the flexible tape. According to the invention, the part of the flexible tape located above the seat is reinforced with metal angles installed with the horizontal shelves across the long side thereof, with a pitch ensuring the rigidity of the flexible tape, wherein rows of vanes are arranged sequentially between the metal angles with a gap between the vanes, the ends of the vanes from the side of the upper pool are rigidly connected with the vertical shelf of the corresponding metal angle, and the opposite ends thereof have flexible joints for connection with the vertical shelf of the subsequent metal angle, wherein the ends of the vane of the last metal angle are not fixed at the base of the end wall of the water outlet pipe.

EFFECT: increase in the reliability in operations on water with increased turbidity, with a maintained possibility of providing increased accuracy when regulating the flow rate.

1 cl, 4 dwg