Turbomachinery – Basic Features

turbine flow meter

A turbine flow meter, sometimes called a turbomachinery, is a device that measures the rotational speed of a rotating shaft. The blades of the shaft are generally made of rubber or other flexible material and mounted on a flexible bracket that rotates on two wheels. The stationary wheel is known as the spindle. The turbine is a shaft enclosed in an acrylic tube, which may be spun by electric or hydraulic pressure. The turbine spindle may be moved vertically, horizontally, vertically and lateral to obtain the required measurements.}

The turbine flow meter consists of a rotor that rotates on flexible blades in the flowing fluid. The rotor is supported by an inner ring, which may be rotated by rollers. When the flowing fluid passes through a strain Gage at the end of the blade, it registers the velocity change, which is proportional to the applied force. The turbine flow meter thus records the rotational speed of the blades and the flow stream shaft.

There are two common methods of measurement, depending on the pipe used. The first method is based on the Pipe velocities, where the applied force is measured against the pipe velocity. The second method is based on the Pipe friction, where the applied force is measured against the pipe friction. The turbine flow meters are normally designed for pipes whose diameter is greater than 0.5 mm. There are also other types such as the so-called permeable and the non-permeable pipe. The permeable pipe is usually used for the measurement of small pipe sizes.

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