Hydrogen refueling station purging control method, device and system
A control system and control method technology, applied in the pipeline system, container filling method, container discharge method, etc., can solve problems such as shutdown and affecting the normal operation of hydrogen refueling stations, and achieve the effect of reducing waste and reducing shutdown problems of the whole system
Active Publication Date: 2021-11-12
HEFEI SUNGROW RENEWABLE ENERGY SCI & TECH CO LTD
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Problems solved by technology
Since the purging operation needs to be performed on all equipment, the entire system needs to be shut down during the purging process, which affects the normal operation of the hydrogen refueling station
Method used
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[0055] Next, the technical solutions in the embodiments of the present invention will be described in connection with the drawings of the embodiments of the present invention, and it is understood that the described embodiments are merely the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art are in the range of the present invention without making creative labor premise.
[0056]The inventors have discovered through research: the prior art refueling station periodically detects a hydrogen concentration of the low pressure receiver and the high pressure receiver, because it is not real-time detection, presence detector lag, affect the safety of hydrogen refueling stations, and if the compressor stage I when mixed pry not detect harmful gases, it will result in harmful gas compressor skid by class I, class II compressor pry passage between the high-...
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The invention provides a hydrogen refueling station purging control method, device and system. By obtaining the hydrogen concentration of hydrogen outlet valves of a first-stage compressor package, a second-stage compressor package, a high-pressure storage tank and a low-pressure storage tank in real time, abnormal equipment with the hydrogen concentration lower than the threshold value can be detected in time, therefore purging operation is executed on the abnormal equipment in time, the safety of a hydrogen refueling station is guaranteed, and meanwhile harmful gas in the abnormal equipment is prevented from being mixed into next-stage equipment. In addition, due to the fact that only the abnormal equipment is subjected to purging operation, other equipment except the abnormal equipment in the system can normally operate, the problem that the whole system is shut down due to the abnormal equipment is solved to a certain degree, and waste of hydrogen and inert gas is reduced.
Description
Technical field [0001] The present invention relates to the field of hydrogen production, and more particularly, to a refueling station purge control method, device and system. Background technique [0002] Hydrogenation station is provided to the fuel cell cars hydrogen infrastructure. See figure 1 In the hydrogenation station, then hydrogen after the compressing operation of the compressor stage I and II pry pry the compressor, the high-pressure tank and finally stored the low pressure receiver. [0003] Since the concentration of hydrogen refueling station is a prerequisite for deciding whether to use normal, therefore, the concentration of the hydrogen refueling station detects a high pressure tank and low pressure tank periodically, upon detection of the hydrogen concentration below the threshold value, the inert gas purging is performed operation, i.e. sequentially with an inert gas purge compressor pry stage I, II pry stage compressor, a high pressure tank and low pressure...
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IPC IPC(8): F17D1/04F17D1/07F17D3/01F17D5/00F17C13/02
CPCF17D1/04F17D1/07F17D3/01F17D5/00F17C13/023F17C2270/0763F17C2265/065Y02E60/32Y02E60/34
Inventor 刘牛张鹏
Owner HEFEI SUNGROW RENEWABLE ENERGY SCI & TECH CO LTD