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Method and device for filling hydrogen

A filling method and a filling device technology, which are applied to container filling methods, container discharge methods, fixed-capacity gas storage tanks, etc., can solve problems such as temperature rise, difficult cooling, and equipment cost rise, and achieve efficient filling and suppress hydrogen temperature rising effect

Inactive Publication Date: 2007-09-12
NIPPON SANSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, various devices such as valves are also installed on the filling path after the cooling unit, and the temperature of hydrogen rises due to the Joule-Thomson effect when passing through the above-mentioned various devices, and there is a possibility that the temperature rises faster due to rapid filling. Tendency, so if you start cooling the hydrogen at the same time you start filling, it is sometimes difficult to cool it down sufficiently
Therefore, as the cooling unit, it is necessary to use a device with a high cooling capacity, which raises the problem of an increase in the cost of the device.

Method used

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  • Method and device for filling hydrogen

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Embodiment Construction

[0037] Fig. 1 is a system diagram showing a hydrogen gas filling device according to an embodiment of the present invention. In this hydrogen gas filling device, a compressor 12 is used to boost the pressure of hydrogen gas supplied from a hydrogen gas supply source 11 , and the hydrogen gas is filled into a fuel tank of a hydrogen car 14 through a filling path 13 . In the middle of the filling path 13, a plurality of storage containers 15 storing compressed hydrogen gas, a bypass path 16 bypassing the storage containers 15, and cooling the hydrogen gas flowing through the downstream side of the storage containers 15 are provided. cooling unit 17.

[0038] Furthermore, a circulation path 18 connected to the suction side of the compressor 12 branches off from the filling path 13 on the downstream side of the cooling unit 17 , and a recovery path 20 having a recovery container 19 branches in the middle of the circulation path 18 . Moreover, one end of a connection conduit 21 su...

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Abstract

The present invention provides a method for restraining the temperature increase of hydrogen gas and effectively charging a hydrogen gas to a hydrogen automobile and an apparatus. The hydrogen gas supplied from a hydrogen supply source is compressed and stored in a storage container, one part of the stored hydrogen gas is led out to a charging path and is cooled by a cooling unit, and the cooled hydrogen gas is used for cooling the piping and machine in the charging path. The cooled hydrogen gas is reclaimed to a reclaim container, and then the hydrogen in the storage container is charged to the hydrogen automobile through a charging path.

Description

technical field [0001] The present invention relates to a method and device for filling hydrogen gas, in particular, to a method and device for filling hydrogen gas used as fuel for a hydrogen vehicle from a hydrogen supply source to a fuel tank of a hydrogen vehicle. Background technique [0002] Hydrogen used as a fuel for hydrogen vehicles such as fuel cell vehicles has a tendency to increase in temperature due to the Joule-Thomson effect when various valves and flowmeters installed on the path through which the hydrogen flows adiabatically expand. nature. Therefore, the hydrogen temperature rises due to the Joule-Thomson effect at the time of filling the hydrogen gas from the hydrogen gas supply source to the hydrogen car, etc., and the hydrogen gas is compressed and filled into the hydrogen gas. The heat of compression in the car's fuel tank raises the temperature of the hydrogen. [0003] If the hydrogen temperature rises as described above, there will be problems su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17C5/04F17C7/02F17C5/06F17C7/04
CPCY02E60/321Y02E60/324Y02E60/50Y02E60/32F17C5/06F17C13/026F17C2221/012F17C2250/0631
Inventor 大盛幹士久和野敏明
Owner NIPPON SANSO CORP