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Hydrogen gas flow rate detecting system and hydrogen gas flow rate detecting system
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A flow detection and hydrogen technology, applied in the direction of mass flow measurement device, indirect mass flowmeter, etc., can solve the problem of large hydrogen consumption error, and achieve the effect of reducing measurement error and improving detection accuracy
Inactive Publication Date: 2015-06-03
TSINGHUA UNIV
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[0004] However, the hydrogen consumption obtained by this detection method has a large error
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Embodiment 1
[0037] Such as figure 1 As shown, this embodiment provides a hydrogen flow detection system, including: a pressure reducing valve (3), a main circuit switch ball valve (4), and a flow regulating valve (5), (6) sequentially installed on the main pipeline of a high-pressure gas cylinder , pressure sensor (7), tested flow meter (8), pressure sensor (9), stagnation container switch ball valve (10), stagnation container (14), sonic nozzle (15), sonic nozzle (16), sonic Nozzle (17), pneumatic switch valve (18), pneumatic switch valve (19), pneumatic switch valve (20), outlet container (21) and flame arrester (26).
[0038] Wherein, the high-pressure gas cylinder is filled with hydrogen, and the main pipeline of the high-pressure gas cylinder is used to output the hydrogen from the high-pressure gas cylinder.
[0039] Optionally, a pressure sensor (13), a temperature sensor (11), and a temperature sensor (12) are installed on the stagnation container (14), and a pressure sensor (22)...
Embodiment 2
[0046] This embodiment provides a hydrogen flow detection method using the system described in Embodiment 1, including:
[0047] Open the main pipeline valve, open the flow regulating valve, open the sonic nozzle pneumatic on-off valve, purge the entire pipeline with a purge bottle, then close the sonic nozzle pneumatic on-off valve, close the flow regulating valve, and close the main pipeline valve;
[0048] Open the valve of the main pipeline, open the flow regulating valve, purge the pipeline with hydrogen, close the pneumatic switch valve of the sonic nozzle, close the flow regulating valve, and close the valve of the main pipeline;
[0049] Open the main pipeline valve, open the flow regulating valve, and use hydrogen to pass through the pressure reducing valve to keep the pressure of the stagnant vessel above 0.3Mpa;
[0050] Wait until the pipeline pressure sensor is consistent with the pressure of the stagnant container, and when the measured flowmeter reads 0, open th...
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Abstract
The invention discloses a hydrogen gas flow rate detecting system and a hydrogen gas flow detecting system. The system comprises a pressure reducing valve, a primary switch ball valve, a flow rate regulating valve, a flow rate regulating valve, a pressure sensor, a detected flow rate meter, a pressure sensor, a stagnation container opening-closing ball valve, a stagnation container, a sound speed spray nozzle, a pneumatic switch valve, an outlet container and a back-fire relief valve which are arranged on a high-pressure gas cylinder primary pipeline in sequence. The hydrogen gas flow rate detecting system can increase the detecting precision of the hydrogen gas and can reduce the measuring errors of the hydrogen gas consumption amount.
Description
technical field [0001] The invention relates to the field of flow detection, in particular to a hydrogen flow detection system and a hydrogen flow detection method. Background technique [0002] Hydrogen is regarded as the most ideal energy carrier due to its clean and pollution-free, high efficiency, storage and transportation, and wide range of sources. Many experts and scholars believe that hydrogen energy is the most likely power fuel to replace fossil fuels in the future, considering factors such as economy, technology, mobility and environmental friendliness. The combination of hydrogen energy and renewable energy will form a completely renewable and complete energy system. [0003] The currently commonly used hydrogen flow detection method uses a flow meter to measure the hydrogen flow, and uses the flow meter to continuously measure the hydrogen flow flowing in the fuel supply pipeline to obtain the hydrogen consumption. [0004] However, the error of the hydrogen ...
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