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A self-cleaning method for the reflective surface of ultrasonic water meter based on condition monitoring

An ultrasonic and reflective surface technology, which is applied in the field of self-cleaning of the reflective surface of ultrasonic water meters based on state monitoring, can solve problems such as inaccurate measurement results, and achieve the effects of expanding the scope of use, ensuring measurement accuracy, and ensuring measurement accuracy

Inactive Publication Date: 2019-04-05
深圳齐环科技有限公司
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Problems solved by technology

Through the self-cleaning process of the reflective surface, the problem of inaccurate measurement results of the ultrasonic water meter caused by the fouling of the reflective surface is solved

Method used

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  • A self-cleaning method for the reflective surface of ultrasonic water meter based on condition monitoring
  • A self-cleaning method for the reflective surface of ultrasonic water meter based on condition monitoring
  • A self-cleaning method for the reflective surface of ultrasonic water meter based on condition monitoring

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] Such as figure 1 , image 3 As shown, the present invention respectively implants piezoelectric ceramic sheets 7 in the first reflective column 4A and the second reflective column 4B with the same structure installed symmetrically upstream and downstream inside the pipe section 2 of the ultrasonic water meter, and the water flow velocity in the pipe section 2 The ultrasonic beam signal strength monitored in real time with the piezoelectric ceramics is the trigger judgment condition. The trigger control circuit board 1 gives the respective piezoelectric ceramics 7 a sinusoidal excitation signal and drives the respective piezoelectric ceramics 7 to vibrate, thereby driving the reflection at the top of the respective reflection columns. The surfaces 5 vibrate and thus achieve self-cleaning of the respective reflective surface 5 .

[0024] Piezoele...

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Abstract

The invention discloses an ultrasonic water meter reflective surface self-cleaning method based on state monitoring. Piezoelectric ceramic sheets are implanted into a first reflective column and a second reflective column respectively. The first reflective column and the second reflective column, of the same structure, are symmetrically arranged at the upstream and downstream inside a pipe segment of an ultrasonic water meter. The speed of water current in the pipe segment and ultrasonic beam signals monitored by the piezoelectric ceramic sheets in real time are taken as trigger judgment conditions to trigger a control circuit board to provide sine excitation signals to the piezoelectric ceramic sheets and to drive the piezoelectric ceramic sheets to vibrate, so that reflective surfaces on tops of the respective reflective columns are driven to vibrate and clean by the reflective surfaces themselves. The method effectively solves a problem that a measurement result of the ultrasonic water meter is inaccurate because of limescale accumulating on the reflective surfaces. The ultrasonic water meter needs not to be dismounted from a pipe network, and the self-cleaning processing will not affect normal metering of water flows. The service life of the ultrasonic water meter is prolonged, and the ultrasonic water meter can still be utilized in a measuring occasion with bad water quality.

Description

technical field [0001] The invention relates to an ultrasonic water meter, in particular to a self-cleaning method for a reflective surface of an ultrasonic water meter based on state monitoring. Background technique [0002] Ultrasonic water meter (mainly including ultrasonic water meter and ultrasonic heat meter) is to calculate the flow velocity of water flow in the pipe section by detecting the time difference between the forward and countercurrent propagation of the ultrasonic beam in the water flow of the pipe section, and further accumulate A new type of water meter that calculates the flow of water in a pipe section. As the second-generation smart meter, the ultrasonic water meter has the advantages of high measurement accuracy, wide measurement range ratio, no movable parts inside, powerful communication and networking functions, etc., especially the small flow detection ability of the ultrasonic water meter Excellent (minimum flow of 20-caliber ultrasonic water me...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F15/12G01F1/66
CPCG01F1/66G01F15/12
Inventor 王利军
Owner 深圳齐环科技有限公司
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