Gruppo sensore - valvola per contatore di gas, contatore di gas impiegante lo stesso e metodo di controllo di contatore di gas

The utility model relates to a measuring pipe body structure for an ultrasonic gas meter. The measuring pipe body structure comprises a first port gas cabin, a second port gas cabin, a linear measuring pipe, a first ultrasonic sensor, a second ultrasonic sensor and a sealing bolt, and the central axes of the first ultrasonic sensor and the second ultrasonic sensor are overlapped with the central axis of the linear measuring tube. The port air cabins designed at the two ends of the ultrasonic gas meter are used for buffering, so that the stability of air flow in the measuring pipeline is ensured; the linear measurement pipeline is used for measurement, the flow velocity measurement sensitivity is high, and the flow measurement accuracy of the ultrasonic gas meter is good; the appearance issimple, machining and assembling are easy, and the good sealing effect is achieved.

Measuring tube structure for ultrasonic gas meter

The design and structure of a regulated digital gas dispense apparatus is exhibited in this disclosure. The MEMS mass flow meter embedded with a Bluetooth communication device and powered by a battery pack is designed to replace the mechanical low pressure gauge in a conventional gas dispense regulator such that the dispensed gas flowrate as well as totalized dispensed gas volume in each session or in consequent sessions can be continuously and precisely registered. The measured data are further relayed to local users via the local display or physical data port as well as via a paired smart device running a customized APP that can further relay the data to a designated cloud for cloud data processing, and the data can be streamed reversely. This disclosure shall assist and realize the ultimate optimized management for the users, distributors and/or gas manufacturers in the gas dispensing industry.

Digital regulated gas dispensing apparatus with a MEMS mass flow meter

The present invention relates to a sensor-valve assembly (10) for gas meter (20) comprising a housing body (9) in which there is comprised at least one measuring device (11) configured to measure a gas flow passing through the group and at least one intercept device (12) to intercept the gas flow passing through the group, characterized in that it comprises at least one electronic processing unit (14) mounted in or on the housing body (9) and provided with storage means (18), the electronic processing unit (14) being operatively connected to the measuring device (11) and configured for storing in the storage means (18) a plurality of measurement values detected by the measuring device (11), the electronic processing unit (14) being further operatively connected to the intercept device (12) and configured to control its opening and/ or closing.

Sensor-valve assembly for gas meter, gas meter using the same and method for controlling a gas meter

An electronic utility gas meter using MEMS thermal mass flow sensor to measure gas custody transfer data in city gas metering application is disclosed in the present invention. The meter is designed to have its mechanical connectors identical to those of the current diaphragm gas meters while the insertion metrology unit guided channel is placed coaxially in the main flow channel inside the meter body with gas flow conditioning apparatus. The mechanical installation of the electronic utility gas meter then can be fully compatible with the current mechanical utility gas meters, which allows a seamless replacement. The electronic utility gas meter provides gas metrology that significantly improves the accuracy of the city gas metering, and provides additional benefits for data safety, enhanced gas chemical safety, billing alternatives and full data management either locally or remotely.

Wai Tung Ivan Wong

Papers

Utility mass flow gas meter