1216 results about "Gas meter" patented technology

The invention provides a testing device for competitive adsorption of supercritical CO2 and CH4 in shale and a testing method of the device. The device comprises an injection pump system, a long core holder, a back-pressure valve, a differential pressure gauge, a temperature control system, a liquid fraction collector, a gas meter and a gas chromatograph instrument. The testing method comprises an evaluation method of CH4 single component gas in a shale core and an evaluation method of CH4 gas, converted by the supercritical CO2, in the shale core. According to the device and method, the detection conditions of a laboratory test that the supercritical CO2 displaces CH4 adsorbed in the shale under the high temperature and high pressure conditions of a stratum are met through a multifunctional long core displacement method, and then the purpose of evaluating the efficiency that the supercritical CO2 displaces the adsorbed CH4 is achieved; by using the combined long core, the gas injection volume is large, the errors are decreased, and the formation condition is truly restored; the cracked long core can simulate the competitive adsorption process of the fractured supercritical CO2 and the CH4 under the true shale reservoir condition; the injected CO2 is in the supercritical state, and an experiment is performed in a step-by-step depressurizing mode, and the depletion exploitation process of a stratum can be truly simulated.

The invention relates to a combustion gas metering system. The combustion gas metering system comprises a combustion gas metering device. The combustion gas metering device comprises a combustion gas counter and an intelligent gateway/intelligent information terminal, and the combustion gas counter and the intelligent gateway/intelligent information terminal are mutually independent/unintegrated. The intelligent gateway/intelligent information terminal comprises a display. A radio communication link is arranged between the combustion gas metering device and the intelligent gateway/intelligent information terminal. The intelligent gateway/intelligent information terminal is in a wireless connection relationship with a combustion gas cloud platform. The combustion gas counter has a radio communication function, and a metering function of the traditional gas meter. Through remoting of the display part, the combustion gas counter volume can be reduced relatively to a gas meter so that arrangement is more convenient. The intelligent gateway/intelligent information terminal can be individually arranged at other appropriate positions such as parlor, bedroom and the like far away from the combustion gas counter. The combustion gas metering system realizes remoting and immobilization of the combustion gas display part and is convenient for observation, operation and management by users. By means of the cloud platform and the display part, the combustion gas metering system is convenient for electronic commerce.

The invention discloses a photoelectric coding counting device and a photoelectric coding counter thereof, wherein the photoelectric coding counting device is provided with an infrared transmitting plate, a counter print wheel and an infrared receiver plate, and coding holes are arranged on the counter print wheel, and an infrared receiver tube can transform photoelectric signals into a group of binary codes according to whether infrared lights sent by an infrared transmitting tube pass through the coding holes and are received by the infrared receiver tube. The photoelectric coding counter comprises a counter bracket, a circuit board and five groups of photoelectric coding counting devices, wherein the circuit board is provided with a microprocessor, a photoelectric sampling circuit and a wireless transceiving circuit, wherein infrared receiver tubes in each group of photoelectric coding counting devices can transform the photoelectric signals of the infrared transmitting tubes in relative group into a group binary codes, each group of binary codes are transformed into some decimal digit value of the photoelectric coding counter after being decoded by the microprocessor, each decimal value can combine into an integral actual value, and the actual value is transmitted to a counter system through controlling the wireless transceiving circuit by the microprocessor. The device has simple structure design and accurate and reliable data collection, and can conveniently realize the wireless automatic meter reading and real-timely monitor the operation condition of a fuel gas meter.

The invention discloses a cutting type diaphragm gas meter and belongs to a gas meter. The cutting type diaphragm gas meter comprises a base meter body, wherein a gas inlet and a gas outlet are arranged on the base meter body; a cutting valve is mounted at the gas inlet; the gas meter further comprises a signal acquisition treating circuit and a cutting type diaphragm gas meter terminal microcomputer controller; the signal acquisition treating circuit is connected with the cutting type diaphragm gas meter terminal microcomputer controller; the cutting valve is connected with the cutting type diaphragm gas meter terminal microcomputer controller through a cutting valve control circuit; the signal acquisition treating circuit is used for acquiring the flow of fuel gas flowing by the base meter body in real time and timely transmitting to the cutting type diaphragm gas meter terminal microcomputer controller; and when the abnormal states, such as small flow leakage, abnormal mass flow and over long service time, of the output of the base meter body are detected, the cutting valve on the base meter body is timely turned off and a liquid crystal display screen and a buzzer are utilized to alarm, so that the burning or explosion phenomenon caused by excessive leakage of the fuel gas is avoided and the life and property of people are protected.

The invention discloses a safety cut-off type remotely-controlled intelligent mass flow rate gas meter and a management system thereof, and belongs to a gas metering device. The gas meter comprises a microcomputer controller, a micro-electro-mechanical system metering unit, a valve control circuit, a gas working condition collecting and processing unit and a communication module. The micro-electro-mechanical system metering unit accesses to the microcomputer controller through a signal collection unit and a signal processing unit sequentially. The microcomputer controller is connected with a cut-off valve through the valve control circuit and is also connected with the communication module. The safety cut-off type remotely-controlled intelligent mass flow rate gas meter and the management system thereof have the advantages that a mass flow rate metering principle is adopted, and mechanical transmission components are omitted, so that metering problems caused by mechanical aging are avoided, and metering accuracy is guaranteed; a temperature correction function is achieved through mass flow rate metering, a correction device does not need to be arranged externally to compensate temperature and pressure, and the whole meter is small in size, high in metering accuracy and high in reliability.

The related flux gauging device for oil-water-gas three phase flow comprises: divided by the flange and pipeline, a separation tank with top connected with a gas-liquid inlet pipe and both top and bottom connected with the control tank top and bottom through a gas-release and liquid-release pipe, a control tank with a floating-ball regulating valve inside and a gas/liquid outlet pipe on top/bottom, a liquid flowmeter, a constituent device, a gas meter on a gas release pipe, and a gas-liquid buffer tank, wherein the gas-release pipe and liquid-release pipe conflux at the confluxing pipe. This invention has measuring precision up to +-0.5~2%, fit to run for long term reliably, and has small size and weight for wide application.

A gas meter with a simple structure for detecting a range from a minute flow rate, such as a gas leak, to the large flow rate of the normal state of use of the gas, while protecting the flow rate sensor from dust and without producing the problem of pressure loss. First, second, and third flow paths for carrying partial flows of a gas to be measured, in accordance with the flow rate, are provided by partitioning, in parallel, the cross-sectional surface of a main flow path. A flow rate sensor for flow rate measurement is provided in the first flow path with a small flow path cross-sectional area, and a flow rate sensor for detecting a gas leak is provided in the second flow path with a small flow path cross-sectional area, where a flow baffling filter is provided on one end side or both ends of the first and second flow paths, and a contaminant (dust) removing filter is provided on one end side or both ends of the first flow path.

The invention relates to a working method of a multi-energy information collection control system. The system comprises a master station layer, a communication channel layer and a collection equipment layer, the master station layer comprises an electricity consumption information collection system and a tap water and fuel gas business application system connected with the same, the communication channel layer serves as a channel mode for communication among equipment, and the collection equipment layer serves as bottom equipment for collection and comprise a concentrator, a collector, an intelligent ammeter, an interface converter, an image recognition water meter, a remote water meter, an image recognition fuel gas meter and a remote fuel gas meter. The multi-energy information collection control system integrates three systems for electricity, water and gas through archival information synchronization, meter reading time synchronization, meter reading planning, collected data receiving, data auditing and correcting, sent data sharing and data accounting integration.

A gas meter comprising a housing (2) with a gas inlet connection (5) and an inflow chamber (16) which is arranged downstream of the latter and into which gas flows via an inflow opening (14), arranged downstream of which inflow chamber (16) is a measuring section (19) arranged upstream of a gas outlet connection (6) and having a measuring device (20), in which the gas flow is measured, wherein projecting into the inflow chamber (16) there is a tube (15) which merges into the measuring section (19) or forms the latter and runs substantially perpendicularly to the gas flow direction through the inflow opening (14) and overlaps the inflow opening (14), at least in a certain section.

The invention relates to a remote centralized display system for dial reading of tap water meters and gas pipeline meters. According to the invention, remote centralized displaying of the dial reading of the tap water meters and the gas pipeline meters with no error can be realized. According to the invention, the dial reading showed on domestic tap water meters and/or domestic gas pipeline meters are shot by a camera to form image signals which are transmitted to a display via a video cable, and the images of the dial reading showed on the tap water meters or the gas pipeline meters are displayed on the display. Multi-path video images transmitted from a plurality of families can be displayed on the display one-path by one-path by a video switcher or a frame segmenter. In this way, the dial reading of the tap water meters and the gas pipeline meters can be displayed in a remote centralization way, and water suppliers or gas pipeline suppliers can read the tap water meters and/or the gas pipeline meters conveniently and rapidly on the display.

The invention discloses high-temperature high-pressure dry gas injection longitudinal wave and efficiency testing device and method for a gas condensate reservoir. The device mainly comprises a high-pressure displacement pump, a medium container, a data acquiring system, a high-temperature and high-pressure slab model system, a backpressure controller, an oil-gas separator and a gas meter; the high-temperature and high-pressure slab model system mainly comprises a slab model, a model rack, a vertical lifting mechanism, a temperature control system, a fastening bolt, a fluid physical property testing point and a pressure sensor. The method comprises the steps of (1) manufacturing a sand filling model; (2) preparing a condensate gas sample and a formation water sample; (3) recovering the gas reservoir initial condition for the sand filling model; (4) injecting dry gas to replace condensate gas; (5) processing data, and calculating wave and efficiency. The device and method are reliable in principle, simple and convenient to operate, intuitive in measuring results, provide guidance suggestions to the condensate gas reservoir gas injection development effect and preparation of a development scheme, and have a wide application prospect.

The present invention provides a water-electricity-gas meter remote intelligent integrated meter reading system based on the digital television set top box, including: a three meters information search display subsystem for searching and output the searched three meters information, achieving by the set top box and the television of each user; a three meters information storage processing subsystem, for storage and processing three meters information of each user, achieving by the logistics management center computer; a three meters information collecting subsystem, for collecting the three meters information of each user, achieving by the three meters information collector of each user. The invention achieves the interactive communication based on the communication centrum of the Cable DTV web by the logistics management center computer, the three meters information collector and the Cable DTV web. The present Cable DTV web having high quality substitutes for the traditional complex bus or private line to achieve signal communication, this makes the system have simple structure, convenient for install and implement, reducing the fault latency at the same time, enhancing the credibility of system.

A retrofit system includes a body, a cup and a valve. The body has a top wall and a plurality of side walls defining a opening and a chamber and is configured to be connected to a gas meter such that the chamber is in fluid communication with a chamber of the gas meter. An inlet channel is configured to be in fluid communication with an inlet of a diaphragm disposed within the gas meter and an outlet channel configured to be in fluid communication with an outlet of the diaphragm. The cup is disposed within an aperture located in the top wall and defines compartment configured to receive a radio frequency (RF) controller and a power supply. The valve is connected to one of the inlet or outlet channels and is electrically coupled to the RF controller and the power supply. The valve is configured to close in response to receiving an electrical signal from the RF controller.

The invention discloses a collecting system for collecting water, gas, heat and electricity meter data. The collecting system comprises a system main station, a concentrator, a collector, a water meter, an electricity meter, a heat meter and a gas meter, wherein the concentrator is in transmission connection with the system main station; the collector is in transmission connection with the concentrator; the water meter, the electricity meter, the heat meter and the gas meter are in transmission connection with the collector; the collector comprises a collection unit, a conversion unit and a first transmission unit; the concentrator comprises a second transmission unit used for transmitting the data of the water meter, the electricity meter, the heat meter and the gas meter from the collector to the system main station; the system main station comprises an analysis unit used for analyzing the received data of the water meter, the electricity meter, the heat meter and the gas meter into an original data format. The transmission format of the data of the water meter, the gas meter and the heat meter is converted into the data transmission format matched with the electricity meter, so that the data of the water meter, the gas meter and the heat meter can be merged into an electricity meter collection system for concentrated collection; the problem that the data of the water meter, the electricity meter, the heat meter and the gas meter cannot be collected in a unified way is solved.

The invention discloses a wireless and non-source water meter and gas meter. It has the intelligent water meter, the gas meter and the main station recording the meters. The intelligent water and gas meters carve the absolute codes on the mechanical character wheel of the meters; equip the infrared sending and receiving tubes at two sides of the wheel; equip the radio wave receiving and adjusting circuits in the meters; the water and the gas meters do not connect the electric source; the main station is the radio wave launching and receiving circuit. The effects of the invention are: (1) the absolute coding takes less space and is easily processes; (2) the meters simultaneously have mechanical and digital reading and keep accordance; (3) easily sealed; (4) the main station and the water and gas meter exchange the data through radio communication.

The invention provides a construction layout-based topological system for data collection and an implementation method thereof, belonging to the field of data collection of gauges. The topological system comprises a layout generation module, a group unit module, an intermediate node module, a slave node module and a node corresponding module. The implementation method comprises the following steps of: firstly, establishing a corresponding relation between a gauge code and an installation physical address; secondly, dividing a group unit according to the space distribution condition corresponding to the physical address of a gauge by using at least one of a serial mode, a parallel mode, a complex mode and other modes; setting an optimal intermediate node and salve node and a corresponding work mode of the optimal intermediate node and salve node in the group unit to construct the topological system. Because the intermediate node data are collected, the wireless data of at least one of a gas meter, an ammeter, a water meter, a heating meter and the like are intensively collected. By using the topological system, the work load of a meter reader can be reduced, and the difficulty of indoor meter reading of a gas enterprise is solved.

The invention discloses an optical fiber network system and a method thereby for modulating and demodulating asynchronous communication data on optical fiber transmission. The system comprises a collector and more than one carrier wave ammeter, wherein the collector and each ammeter are connected into a single-ring or double-ring optical fiber network by an optical fiber; the collector and the ammeter are respectively connected with an optical communication module; each optical communication module is provided with one or two optical receiving modules (FR) and one or two optical transmitting modules (FT); and the optical fiber is connected to FR and FT. According to the situation, the optical communication module forwards received data to other ammeters or collectors in a mode of directly forwarding or indirectly forwarding . The ammeter can be replaced by a water meter, a gas meter or a fuel gas meter.

The present invention provides a gas meter fault prompting method and Internet of Things (IoT) system based on a compound IoT, and relates to the field of an IoT. According to the gas meter fault prompting method and IoT system based on the compound IoT, each of object sub-platforms is configured to check its own operation state information in real time for a fault; a management platform is configured to inquire a fault type and a fault solution according to the operation state information and preset fault inquiry table, and send the fault type and solution to a corresponding user sub-platform via the service platform to display, so that a user can know and view the fault type and solution of a gas meter at the user sub-platform in a timely manner and thus may repair some simple faults of the gas meter independently; the invitation for a person of a gas company to the site for handling turns out to be unnecessary; and therefore, the time cost and the labor cost are saved.

A gas meter reading system is provided that allows automated meter reading capability to be incorporated with sealed mechanical type gas meters. The reading system is mounted to the window of the meter adjacent to the measurement dial. The reading system senses the rotation of the dial and provides data, such as a pulse, that may be recorded by an external source. A method of detecting for leaks with a gas meter having a reading system is also provided.