Hydrogen-electricity metering electricity meter

Abstract

The utility model relates to the field of measurement technology, concretely is a kind of hydrogen-electricity metering electric energy meter, including shell, and install the measurement board card in the inside of shell, the measurement board card includes electric energy measurement module, data processing module, hydrogen measurement module, electric energy terminal and hydrogen transmission pipeline;Electric energy terminal is electrically connected with electric energy measurement module, hydrogen transmission pipeline connects hydrogen measurement module, electric energy measurement module and hydrogen measurement module are electrically connected data processing module respectively.It has realized the measurement detection of distributed hydrogen energy system output electric energy and hydrogen flow, can accurately obtain energy conversion efficiency by real-time association and data fusion of electric-hydrogen measurement data.

Description

Technical Field

[0001] This utility model relates to the field of metering technology, specifically to a hydrogen-electricity meter. Background Technology

[0002] Hydrogen energy, as a clean and efficient renewable energy source, is currently being actively promoted as a distributed energy system, including fuel cell power generation systems, hydrogen energy storage microgrids, and hydrogen fuel cell vehicle charging stations. These systems generate electricity through the electrochemical reaction of hydrogen, thereby achieving energy self-sufficiency and low carbon emissions. However, distributed hydrogen energy systems require precise and synchronized metering of the generated electricity and consumed hydrogen to support the optimization, dynamic billing, efficiency assessment, and carbon emission accounting of the energy management system (EMS).

[0003] However, in existing technologies, electricity metering typically relies on separate smart meters, while hydrogen metering uses separate flow meters or mass meters (such as Coriolis mass flow meters or thermal mass flow meters). This separate metering approach makes it impossible to correlate and synchronize electricity output and hydrogen consumption data, resulting in inaccurate energy conversion efficiency (hydrogen-to-electricity conversion efficiency of fuel cells) detection. Furthermore, metering electricity and hydrogen separately increases additional procurement and integration costs, as well as wiring and maintenance costs. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a hydrogen-electricity meter, comprising a housing and a metering board installed inside the housing. The metering board includes an electricity metering module, a data processing module, a hydrogen metering module, electricity terminals, and a hydrogen transmission pipeline. The electricity terminals are electrically connected to the electricity metering module, the hydrogen transmission pipeline is connected to the hydrogen metering module, and the electricity metering module and the hydrogen metering module are respectively electrically connected to the data processing module.

[0005] The power metering module includes a voltage metering detection circuit and a current metering detection circuit; the voltage metering detection circuit includes a voltage transformer, a resistor R1, a resistor R2 and a capacitor C1, the power terminal is connected to the primary winding of the voltage transformer via the resistor R1, and the secondary winding of the voltage transformer is connected in parallel with the resistor R2 and the capacitor C1 respectively. The current metering and detection circuit includes a current transformer, resistors R3-R6, and capacitors C2 and C3. The current transformer is connected to one end of each of the resistors R3-R6, and the other end of the resistor R5 is connected to one end of the capacitor C2. One end of the resistor R6 is connected to one end of the capacitor C3. The other ends of the capacitors C2, C3, R3, and R4 are respectively grounded.

[0006] In a specific implementation, the current transformer is model ZMCT11M.

[0007] The hydrogen metering module includes a hydrogen flow sensor and a hydrogen metering unit, and the hydrogen flow sensor and the hydrogen metering unit are electrically connected.

[0008] The hydrogen flow sensor is a Coriolis mass flow meter.

[0009] The hydrogen flow sensor is sealed to the hydrogen transmission pipeline via a flange interface.

[0010] The power connection terminals include voltage connection terminals and current connection terminals.

[0011] The hydrogen transmission pipeline includes a hydrogen inlet pipeline and a hydrogen outlet pipeline.

[0012] The metering board is also equipped with an RS485 communication terminal and an RJ45 network port communication terminal, which are electrically connected to the data processing module.

[0013] The front surface of the housing is provided with signal indicator lights and control buttons, and a display module is embedded therein; the signal indicator lights, control buttons and display module are electrically connected to the data processing module respectively.

[0014] Beneficial effects: This utility model is a hydrogen-electricity meter that integrates electricity metering and hydrogen metering functions. It realizes the metering and detection of the output electricity and hydrogen flow of a distributed hydrogen energy system. By real-time correlation and data fusion of electricity-hydrogen metering data, the energy conversion efficiency can be accurately obtained, solving the problems of data incompatibility and inaccurate energy conversion efficiency detection under the existing separate metering methods. At the same time, integrating electricity metering and hydrogen metering into one meter avoids the need to purchase separate smart meters, flow meters, or mass meters, reducing additional procurement and integration costs, as well as wiring and maintenance costs. Attached Figure Description

[0015] The advantages and solutions of this application will become clear to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this invention.

[0016] In the attached diagram: Figure 1 This is a front view of a hydrogen-electricity meter. Figure 2 This is a structural diagram of the metering board; Figure 3 This is a side view of a hydrogen-electricity meter. Figure 4This is a wiring diagram for a hydrogen-to-electricity meter. Figure 5 This is the circuit diagram of the electricity metering module; 1. Housing; 2. Metering board; 3. Hydrogen metering module; 4. Data processing module; 5. Electricity metering module; 6. Hydrogen inlet pipe; 7. Hydrogen outlet pipe; 8. Voltage terminal; 9. Current terminal; 10. RS485 communication terminal; 11. RJ45 network port communication terminal; 12. Display module; 13. Signal indicator light; 14. Control buttons. Detailed Implementation

[0017] Exemplary embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings.

[0018] Example See Figures 1-3 This embodiment provides a hydrogen-electricity meter, including a housing 1 and a metering board 2 installed inside the housing 1. The metering board 2 includes an electricity metering module 5, a data processing module 4, a hydrogen metering module 3, an electricity terminal block, and a hydrogen transmission pipeline. The electricity terminal block is electrically connected to the electricity metering module 5, and can be connected to the power output terminal of a distributed hydrogen energy system, enabling the electricity metering module 5 to meter and collect the output power of the distributed hydrogen energy system and measure the output power data. The hydrogen transmission pipeline is connected to the hydrogen metering module 3, and can introduce hydrogen from the distributed hydrogen energy system during its inverter conversion, and deliver the hydrogen to the hydrogen metering module 3. The hydrogen metering module 3 is used to measure the mass flow rate and volumetric flow rate of the hydrogen during the inverter conversion. The electricity metering module 5 and the hydrogen metering module 3 are respectively electrically connected to the data processing module 4. The data processing module 4 can receive the metering data from the electricity metering module 5 and the hydrogen metering module 3 via serial communication, thereby realizing the fusion calculation of the electricity-hydrogen data to obtain the energy conversion efficiency.

[0019] like Figure 4 As shown, to facilitate wiring connections with a distributed hydrogen energy system, the bottom of the housing 1 is provided with an opening that allows the electrical wiring terminals and hydrogen transmission pipes to extend outside the housing 1. The electrical wiring terminals include voltage wiring terminals 8 and current wiring terminals 9; the hydrogen transmission pipes include hydrogen inlet pipes 6 and hydrogen outlet pipes 7.

[0020] In this embodiment, the voltage terminal 8 and the current terminal 9 are respectively electrically connected to the power output terminal of the distributed hydrogen energy system through wires. In order to realize the metering and detection of the output voltage and current of the distributed hydrogen energy system, the power metering module 5 includes a voltage metering and detection circuit and a current metering and detection circuit.

[0021] like Figure 5 As shown, the voltage metering and detection circuit includes a voltage transformer, resistor R1, resistor R2 and capacitor C1. The voltage terminal 8 is connected to the primary winding of the voltage transformer via resistor R1. The secondary winding of the voltage transformer is connected in parallel with resistor R2 and capacitor C1 respectively.

[0022] The current metering and detection circuit includes a current transformer, resistors R3-R6, and capacitors C2 and C3. The current transformer is a ZMCT11M current transformer. Current terminal 9 is connected to the input terminal of the current transformer. The output terminal of the current transformer is connected to one end of each of resistors R3-R6. The other end of resistor R5 is connected to one end of capacitor C2; one end of resistor R6 is connected to one end of capacitor C3; and the other ends of capacitors C2, C3, R3, and R4 are grounded.

[0023] Meanwhile, to detect the hydrogen flow rate, the hydrogen metering module 3 includes a hydrogen flow sensor and a hydrogen metering unit. The hydrogen flow sensor and the hydrogen metering unit are electrically connected, and the hydrogen flow sensor is a Coriolis mass flow meter. Furthermore, to prevent hydrogen leakage during detection, the hydrogen flow sensor and the hydrogen transmission pipeline are sealed together via a flange interface.

[0024] In addition, the metering board 2 is also equipped with an RS485 communication terminal 10 and an RJ45 network port communication terminal 11. The RS485 communication terminal 10 and the RJ45 network port communication terminal 11 are electrically connected to the data processing module 4. The data processing module 4 can communicate remotely through an external RS485 communication line or network cable, thereby realizing the data upload of the hydrogen-electricity meter and supporting remote control.

[0025] To facilitate on-site viewing of the hydrogen-electricity metering data, the front surface of the housing 1 is provided with a signal indicator light 13 and a control button 14, and a display module 12 is embedded therein. The signal indicator light 13, control button 14 and display module 12 are electrically connected to the data processing module 4, which can transmit the metering data of the electricity metering module 5 and the hydrogen metering module 3 to the display module 12 for display.

Claims

1. A hydrogen-electricity meter, characterized in that, It includes a housing and a metering board installed inside the housing. The metering board includes an energy metering module, a data processing module, a hydrogen metering module, energy terminals, and a hydrogen transmission pipeline. The power terminal is electrically connected to the power metering module, the hydrogen transmission pipeline is connected to the hydrogen metering module, and the power metering module and the hydrogen metering module are respectively electrically connected to the data processing module.

2. The hydrogen-electricity meter according to claim 1, characterized in that, The power metering module includes a voltage metering detection circuit and a current metering detection circuit; the voltage metering detection circuit includes a voltage transformer, a resistor R1, a resistor R2 and a capacitor C1, the power terminal is connected to the primary winding of the voltage transformer via the resistor R1, and the secondary winding of the voltage transformer is connected in parallel with the resistor R2 and the capacitor C1 respectively. The current metering and detection circuit includes a current transformer, resistors R3-R6, capacitors C2 and C3; The current transformer is connected to one end of resistors R3-R6 respectively; the other end of resistor R5 is connected to one end of capacitor C2; one end of resistor R6 is connected to one end of capacitor C3; and the other ends of capacitor C2, capacitor C3, resistor R3 and resistor R4 are respectively grounded.

3. The hydrogen-electricity meter according to claim 2, characterized in that, The current transformer is model ZMCT11M.

4. The hydrogen-electricity meter according to claim 1, characterized in that, The hydrogen metering module includes a hydrogen flow sensor and a hydrogen metering unit, and the hydrogen flow sensor and the hydrogen metering unit are electrically connected.

5. The hydrogen-electricity meter according to claim 4, characterized in that, The hydrogen flow sensor is a Coriolis mass flow meter.

6. The hydrogen-electricity meter according to claim 4, characterized in that, The hydrogen flow sensor is sealed to the hydrogen transmission pipeline via a flange interface.

7. The hydrogen-electricity meter according to claim 1, characterized in that, The power connection terminals include voltage connection terminals and current connection terminals.

8. The hydrogen-electricity meter according to claim 1, characterized in that, The hydrogen transmission pipeline includes a hydrogen inlet pipeline and a hydrogen outlet pipeline.

9. The hydrogen-electricity meter according to claim 1, characterized in that, The metering board is also equipped with an RS485 communication terminal and an RJ45 network port communication terminal, which are electrically connected to the data processing module.

10. The hydrogen-electricity meter according to claim 1, characterized in that, The front surface of the housing is provided with signal indicator lights and control buttons, and a display module is embedded therein; the signal indicator lights, control buttons and display module are electrically connected to the data processing module respectively.

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