a water meter

Abstract

The invention discloses a water meter, which includes a meter head, a flow tube and an ultrasonic transducer, wherein a transduction hole is opened on the flow tube, and the ultrasonic transducer is installed in the transduction hole. The meter head is installed on the flow tube, the ultrasonic transducer is connected to the meter head, and a shunt reflector is installed in the flow tube, and the shunt reflector is set correspondingly to the ultrasonic transducer, and the shunt reflector includes A splitter plate, one end of the splitter plate is obliquely connected to the sound beam reflection plate, the ultrasonic transducer corresponds to the sound beam reflection plate, and the sound beam emitted by the ultrasonic transducer is generated on the sound beam reflection plate reflection. The water meter of the present invention can divide and regularize the water flow in the flow tube, eliminate the unstable state of the fluid, reduce the difference of flow velocity at each point of the same cross section, thereby improving the accuracy of flow measurement.

Description

technical field [0001] The invention belongs to the technical field of physical control and adjustment, and in particular relates to a water meter. Background technique [0002] The use of ultrasound to measure fluid flow velocity is a relatively widely used technology, and usually in the process of actually measuring the flow velocity, due to the fact that the liquid itself will have laminar flow, transition flow or turbulent flow when it flows in the pipeline, and it will be affected by the pipe wall. The liquid flow velocity at each point at the same section in the pipe is quite different, which will affect the accurate measurement of the liquid flow velocity to a certain extent, and the stability of the flow velocity will greatly affect the accuracy of the flow measurement. In some flow control precision requirements In high places, the unstable state of the flow rate should be eliminated to ensure accurate and reliable measurement of the water meter. Therefore, a measur...

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Problems solved by technology

[0002] The use of ultrasound to measure fluid flow velocity is a relatively widely used technology, and usually in the process of actually measuring the flow velocity, due to the fact that the liquid itself will have laminar flow, transition flow or turbulent flow when it flows in the pipeline, and it will be affected by the pipe wall. The liquid flow velocity at each point at the same section in the pipe is quite different, which will affect the accurate measurement of the liquid flow velocity to a certain extent, and the stability of the flow velocity will greatly affect the accuracy of the flow measurement. In some flow control precision requirements In high places, the unstable state of the flow rate should be eliminated to ensure accurate and reliable measurement of the water meter. Therefore, a measuring meter that can stably measure the flow rate of the fluid is needed.

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