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Method for cooling hydrogen in front of hydrogenation machine

A hydrogen refueling machine and hydrogen technology, applied in the field of hydrogen refueling stations, can solve the problems of high operation and maintenance costs, safety risks, and complexity, and achieve the effects of eliminating operation and maintenance costs, easy operation and high cooling capacity

Active Publication Date: 2021-06-15
CHINA PETROLEUM & CHEM CORP +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to solve the problems of complex hydrogen cooling system before the hydrogenation machine in the prior art, one-time investment, high operation and maintenance costs and high safety risks, the present invention provides a hydrogen cooling method before the hydrogenation machine to reduce the complexity of the system and reduce the system cost. Reduce operation and maintenance costs and improve system security

Method used

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  • Method for cooling hydrogen in front of hydrogenation machine

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with the accompanying drawings.

[0029] Such as figure 1 As shown, when the hydrogen cooling system in front of the hydrogenation machine is put into use for the first time or is used again after a long period of idleness:

[0030] First, carry out normal temperature nitrogen purging steps:

[0031] Open the coolant inlet valve 4 and the coolant outlet valve 8, and use room temperature nitrogen 1 to purge and replace the coolant delivery pipeline and cooler, etc., to discharge the air and water vapor therein; open the hydrogen outlet valve 11, and use room temperature nitrogen 13 to The hydrogen delivery pipeline is purged and replaced, and the air and water vapor in it are also discharged; after the cooler 6 completes the nitrogen replacement at normal temperature, the coolant inlet valve 4 and the coolant outlet valve 8 connected to the cooler 6 are closed at the same time; the hydrogen delivery pi...

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Abstract

The invention discloses a method for cooling hydrogen in front of a hydrogenation machine. The method comprises the following steps that (1), a coolant is introduced into a cooler; and (2), hydrogen is introduced into the cooler and filling is carried out. The coolant is liquid nitrogen. The method for cooling the hydrogen in front of the hydrogenation machine has the following beneficial effects that (1), a coolant circulating cooling system is cancelled, so that the one-time investment cost and the operation and maintenance cost of the system are reduced; (2), liquid nitrogen is adopted as the coolant, so that corrosion of the coolant to equipment is avoided, the safety of the system is improved, the heat exchange efficiency is high, and the requirement of the hydrogenation machine for quickly hydrogenating an automobile can be met; and (3), the liquid nitrogen is adopted as the coolant, after the hydrogen is cooled, the liquid nitrogen is slightly treated and emptied, and no pollutant is discharged.

Description

technical field [0001] The invention relates to the technical field of hydrogenation stations, in particular to a hydrogen cooling method before a hydrogenation machine. Background technique [0002] Hydrogen is regarded as the clean energy with the most development potential in the 21st century, and hydrogen energy will play an increasingly important role in solving problems such as energy crisis, global warming and environmental pollution. As one of the important uses of hydrogen energy in transportation, hydrogen fuel cell vehicles are more and more widely used. Hydrogen refueling stations are to hydrogen fuel cell vehicles, just like gas stations are to traditional fuel vehicles, and charging piles are to electric vehicles. They are the key links of hydrogen energy in transportation, transportation and other fields. [0003] The core equipment of the hydrogen refueling station includes compressors, fixed hydrogen storage facilities, and hydrogen refueling machines. The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17D1/02F17D3/01F17D3/12F17D5/00
CPCF17D1/02F17D3/01F17D3/12F17D5/00Y02E60/34Y02E60/32
Inventor 邓矛晁君瑞
Owner CHINA PETROLEUM & CHEM CORP
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