The invention discloses an automatic metrological verification method for a hydrogenation machine, and mainly solves the technical problems that the existing weighing verification is easily influenced by a test environment and verification errors cannot be found in time. The hydrogen output by the hydrogen adding machine is metered through the mass flow meter and the weighing device at the same time, so that the problem that the weighing device is influenced by the surrounding environment or the metering error of the mass flow meter is difficult to find is solved, and the metering reliability of the calibrating device is ensured. A mass flowmeter metering error curve is generated on the basis of historical data, the appropriate hydrogen flow is selected according to the actual hydrogen temperature in the verification process, a PID feedback closed-loop adjustment mode is adopted, the purpose of reducing the mass flowmeter adding error is achieved, and verification reliability is improved. The fuel cell is used for recycling diffused hydrogen at the weighing gas cylinder and can be used for providing electric power supply for the calibrating device, so that the diffusing pressure is reduced, and the calibrating economic benefit is improved at the same time.
本发明公开了一种加氢机自动计量检定方法,主要解决现有称重检定易受测试环境影响且无法及时发现检定误差的技术问题。通过质量流量计和称重器同时实现对加氢机输出氢气的计量,从而避免了称重器受周围环境影响或质量流量计存在计量误差时难以发现的问题,确保了检定装置的计量可靠性。基于历史数据生成质量流量计计量误差曲线,并根据检定过程中实际氢气温度选择合适的氢气流量,并采用PID反馈闭环调节方式,以达到减小质量流量计加量误差的目的,提高检定的可靠性。由燃料电池实现称量气瓶处放散氢气的回收利用,可用于向检定装置提供电力供应,由此在减小放散压力的同时,提高了检定经济效益。
Automatic metrological verification method for hydrogenation machine
加氢机自动计量检定方法
2025-03-18
Patent
Electronic Resource
Chinese
IPC: | F17C Behälter zum Aufnehmen oder Speichern verdichteter, verflüssigter oder verfestigter Gase , VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES / B60S SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR , Warten, Reinigen, Instandsetzen, Unterstützen, Anheben oder Rangieren von Fahrzeugen, soweit nicht anderweitig vorgesehen |
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