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Flow sensor of ultrasonic water meter and heat meter

A flow sensor and ultrasonic technology, applied in the field of heat meter flow sensor, ultrasonic water meter, can solve the problems of difficult meter calibration, difficult to achieve accuracy, difficult data correction, etc., to achieve accurate measurement, simple structure, and small pressure loss Effect

Inactive Publication Date: 2009-11-11
山东水立方电子有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It is difficult to correct the detected data, so it is difficult to achieve a relatively high accuracy, and it is difficult to calibrate the meter

Method used

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  • Flow sensor of ultrasonic water meter and heat meter
  • Flow sensor of ultrasonic water meter and heat meter
  • Flow sensor of ultrasonic water meter and heat meter

Examples

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Embodiment Construction

[0020] Accompanying drawing is a kind of concrete embodiment of the present invention, present embodiment ultrasonic water meter, heat meter flow sensor: comprise sensor housing, ultrasonic transducer 2, ultrasonic reflector 4 and the rectifier tube between ultrasonic transducer 2 , it is characterized in that: the ultrasonic reflector 4 is fixed on the bottom of the sensor housing with screws, the rectifying straight pipe has rectifying corrugations 5, and the inner wall of the rectifying straight pipe can be processed into an inner wall according to the function of the machining equipment. Thread-like or other rough internal surface shape, in this example we machined it into a double thread internal thread. The rectification corrugation 5 includes a variety of processing and forming methods: first, the inner surface of the rectification tube is continuous grooves; second, internal threads are processed on the inner surface of the rectification tube; third, protrusions are pro...

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Abstract

The invention relates to the technical field of acoustics and senor technology, in particular to a flow sensor of an ultrasonic water meter and a heat meter. The flow sensor of the ultrasonic water meter and the heat meter comprises a sensor shell, an ultrasonic transducer and a reflector positioned below the ultrasonic transducer; the flow sensor is characterized in that the centre of the sensor shell is provided with a rectifying tube; and the inner surface of the rectifying tube is provided with rectifying ripple. The flow sensor has the advantages of accurate measurement, good sealing performance for mounting the transducer, small pressure loss and simple assembly and operation.

Description

(1) Technical field [0001] The invention relates to the technical fields of acoustics and sensor technology flow measurement, in particular to flow sensors for ultrasonic water meters and heat meters. (2) Background technology [0002] At present, the existing ultrasonic water meters and heat meter flow sensors at home and abroad are generally composed of sensor housings, transducers, and reflectors. The inner hole wall between the two reflectors is a smooth tube wall without treatment. The flow pattern of the above situation is relatively chaotic, and the law is not obvious. Moreover, the speed of water flow is different, and the shape of water flow is very different. It is difficult to correct the detected data, so it is difficult to achieve a relatively high accuracy, and it is difficult to calibrate the meter. [0003] To develop a high-quality and practical ultrasonic water meter and heat meter flow sensor should meet the following conditions: 1. The consistency of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F15/06G01F1/66G01K17/00
Inventor 邓鲁坚
Owner 山东水立方电子有限责任公司
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