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The structure of the invention
Content Description The technical problem to be solved by the invention is to provide a direct-wave-type square-wave flow channel ultrasonic water meter with strong ultrasonic signal, stable signal, and low cost.
BACKGROUND OF THE INVENTION Existing ultrasonic water meters and ultrasonic heat energy meters are mainly composed of a water flow channel housing and a transducer. According to the arranging way of the vocal tract, it can be divided into two types: the radiant type and the reflective type. The direction of the radiant ultrasonic wave and the direction of the water flow intersect at a certain angle, the output signal is small, the structure is complicated, and the cost is high. Reflective horizontal reflection type, V-shaped reflection type, and W-shaped reflection type reflect ultrasonic waves through the reflection sheet to weaken the ultrasonic energy. In operation, reflection elements are fouled by the water and can be scaled to weaken the ultrasonic energy.
On this basis, the invention overcomes the difficulties of the prior art and develops a square-wave flow path ultrasonic water meter with strong ultrasonic signal, stable signal, convenient installation of the transducer and low cost. At the same time, the invention has a smooth product flow path, less fluctuating interference, and less reflective pressure loss, and the measurement section is not easy to accumulate impurities at the highest point of the water flow channel. The transducer can be mounted directly on the measuring section, eliminating the need for parts of the original packaged transducer, making the overall flow channel less likely to leak.
Technical Principles Square-wave flowmeter Ultrasonic water meters include water meter housings, water inlet transducers, water outlet transducers, water inlet transducer liners, and water outlet transducer liners. The water meter housing is friction welded into a curved shell in order from the inlet section, the measurement section, and the outlet section, forming a complete inlet, outlet, and measurement flow path within the shell. The inlet end and the outlet end of the measuring section are respectively provided with a water inlet transducer and a water outlet transducer, and are installed at the measuring section through the inlet end transducer lining plate and the outlet end transducer liner plate. The water side and the water side. The inlet-side transducer and the outlet-end transducer send and receive ultrasonic waves through the signal line and the circuit board.
The above-mentioned flow passages in the inflow section, the measurement section, and the outflow section enable the water to flow into and out of the measurement section when the direction of the water flow is a square waveform, and are all the same flow rectangular cross-section flow passages.
The patent licensor is Shenyang Xingyu Star Instrument. Its predecessor was the gas meter factory under the Shenyang Liming Aero Engine Group Co., Ltd., which has now developed into an enterprise in the instrument industry.
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[Chinese instrument network meter patent] creative limit, instrumentation invention. Today we introduce a national authorized invention patent - square wave flow channel ultrasonic water meter. The patent was applied for by Shenyang Xingyu Star Instrument Co., Ltd. and was authorized on March 9, 2016.