[Chinese instrument network meter patent] creative limit, instrumentation invention. Today, we introduce a national patent for invention invention - ultrasonic IC card water meter and heat meter. The patent was applied for by Hunan Changde Brand Water Meter Manufacturing Co., Ltd., and was authorized to be announced on May 4, 2016.
Description of the Invention The invention pertains to tap water meters and thermal energy meters, in particular to an ultrasonic IC card water meter and thermal energy meter.
BACKGROUND OF THE INVENTION Currently, IC cards water meters and heat energy meters used in various places generally adopt a water flow to push the impeller to perform a mechanical rotation and an ultrasonic wave to measure a water flow velocity. Water meters are more mechanical, while thermal energy meters use ultrasonic waves to measure water velocity. Because of mechanical problems such as the wear of impellers and other rotating parts, their service life is relatively short. Ultrasonic measurement of water velocity has the advantage of long life.
The current method of measuring the flow velocity of ultrasonic waves for water meters and thermal energy meters is divided into ultrasonic direct reflection and reflection. Since the reflection type needs to fix one or two reflection surfaces in the ultrasonic path, these reflection surfaces are easily contaminated. Reducing reflectivity, so it is more common to use direct methods to do ultrasonic water meters and heat meters.
At present, most of the water meters and heat energy meters made by using direct ultrasonic waves are equipped with ultrasonic transducers installed on both sides of the velocity measuring tube, so that the ultrasonic wave propagation path has a certain angle with respect to the flow path of water. The influence of the ultrasonic wave on the water flow will only have the effect of the same component as the ultrasonic wave propagation direction, thus reducing the amplitude of the ultrasonic waves being affected by the water flow. This means that this method reduces the accuracy and sensitivity of the ultrasonic flow velocity measurement.
In addition, the current ultrasonic water meters and heat energy meters, the majority of the use of the flow velocity tube diameter and the nominal diameter of the table is basically the same, so that the water velocity in the flow velocity tube can not be improved, but also to reduce the accuracy of the flow velocity measurement One of the reasons for sensitivity. At the same time, most of the flow velocity tubes are made of metal materials and the surface is rough, which also has a certain influence on the uniformity of water flow.
In addition, most current transducer holders made of metal or plastic are used to fix and seal the ultrasonic piezoelectric ceramics, and these transducer holders cannot effectively prevent scale formation on the surface and collect rust in the water. Therefore, the surface of the transducer is easily fouled and loses its normal transmission and reception of ultrasonic waves.
Another is that most of the ultrasonic water meters and heat meters currently connected to the signal line of the ultrasonic transducer and temperature sensor are exposed outside the case, so that they can easily be destroyed by humans or accidentally, causing them to lose their normal measurement function. .
Summary of the Invention
The front view of the invention patent
The invention provides a solution which can improve the metering accuracy and sensitivity of the IC card water meter and the heat energy meter made by using ultrasonic waves, and the outer surface of the transducer does not generate scale and accumulate rust, and simultaneously connects ultrasonic waves. The signal lines of the transducer and the temperature sensor are enclosed in the case cover so that their signal lines will not be artificially or accidentally destroyed without destroying the case cover, and when the preset amount in the table runs out The electronically controlled valve will automatically close, and its control circuit board and power supply battery and electronic control part of the valve are all sealed in electronic and valve electronically controlled sealed boxes.
For more information, please download the full specification of the patent.
More information on the latest technology of meter technology patents, please continue to pay attention to [instrument patents]
Description of the Invention The invention pertains to tap water meters and thermal energy meters, in particular to an ultrasonic IC card water meter and thermal energy meter.
BACKGROUND OF THE INVENTION Currently, IC cards water meters and heat energy meters used in various places generally adopt a water flow to push the impeller to perform a mechanical rotation and an ultrasonic wave to measure a water flow velocity. Water meters are more mechanical, while thermal energy meters use ultrasonic waves to measure water velocity. Because of mechanical problems such as the wear of impellers and other rotating parts, their service life is relatively short. Ultrasonic measurement of water velocity has the advantage of long life.
The current method of measuring the flow velocity of ultrasonic waves for water meters and thermal energy meters is divided into ultrasonic direct reflection and reflection. Since the reflection type needs to fix one or two reflection surfaces in the ultrasonic path, these reflection surfaces are easily contaminated. Reducing reflectivity, so it is more common to use direct methods to do ultrasonic water meters and heat meters.
At present, most of the water meters and heat energy meters made by using direct ultrasonic waves are equipped with ultrasonic transducers installed on both sides of the velocity measuring tube, so that the ultrasonic wave propagation path has a certain angle with respect to the flow path of water. The influence of the ultrasonic wave on the water flow will only have the effect of the same component as the ultrasonic wave propagation direction, thus reducing the amplitude of the ultrasonic waves being affected by the water flow. This means that this method reduces the accuracy and sensitivity of the ultrasonic flow velocity measurement.
In addition, the current ultrasonic water meters and heat energy meters, the majority of the use of the flow velocity tube diameter and the nominal diameter of the table is basically the same, so that the water velocity in the flow velocity tube can not be improved, but also to reduce the accuracy of the flow velocity measurement One of the reasons for sensitivity. At the same time, most of the flow velocity tubes are made of metal materials and the surface is rough, which also has a certain influence on the uniformity of water flow.
In addition, most current transducer holders made of metal or plastic are used to fix and seal the ultrasonic piezoelectric ceramics, and these transducer holders cannot effectively prevent scale formation on the surface and collect rust in the water. Therefore, the surface of the transducer is easily fouled and loses its normal transmission and reception of ultrasonic waves.
Another is that most of the ultrasonic water meters and heat meters currently connected to the signal line of the ultrasonic transducer and temperature sensor are exposed outside the case, so that they can easily be destroyed by humans or accidentally, causing them to lose their normal measurement function. .
Summary of the Invention
The front view of the invention patent
The invention provides a solution which can improve the metering accuracy and sensitivity of the IC card water meter and the heat energy meter made by using ultrasonic waves, and the outer surface of the transducer does not generate scale and accumulate rust, and simultaneously connects ultrasonic waves. The signal lines of the transducer and the temperature sensor are enclosed in the case cover so that their signal lines will not be artificially or accidentally destroyed without destroying the case cover, and when the preset amount in the table runs out The electronically controlled valve will automatically close, and its control circuit board and power supply battery and electronic control part of the valve are all sealed in electronic and valve electronically controlled sealed boxes.
For more information, please download the full specification of the patent.
More information on the latest technology of meter technology patents, please continue to pay attention to [instrument patents]
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