FLUID FLOW SWITCH Russian patent published in 2022 - IPC E21B34/02 E21B47/10 F16K11/65 

FIELD: oil industry.

SUBSTANCE: invention relates to the field of the oil industry and can be used in various devices that switch fluid flows, in particular to devices that measure the flow rate of oil wells. The liquid flow switch comprises a housing with an inlet and outlet branch pipe, a measuring branch pipe, a measurement channel, a cover with a motor-reducer installed on it when the shutter is automatically moved or a shaft with a gear and a flywheel when the shutter is manually moved. The body is made in the form of a rectangular parallelepiped with fluid inlet pipes installed in it, an outlet pipe connected to the end and side walls of the body. The measuring branch pipe is connected to the body from the side opposite to the inlet pipes. The gate is made in the form of a rectangular parallelepiped with an opening for communication of one of the inlet pipe with the measuring pipe through an oval cavity on one side and a rectangular cavity on the other side. The shutter is connected to the shaft, with a magnet installed at its end, and the hollow body of the shaft. Valve position sensors are mounted on the hollow shaft housing, configured to initiate a stop of the valve movement.

EFFECT: increasing the operational reliability, durability and efficiency of the device by changing and simplifying the design, increasing the tightness in the measuring path.

1 cl, 3 dwg