Method of controlling operation of fuel gas production apparatus

Inactive Publication Date: 2005-11-03
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

[0010] A general object of the present invention is to provide a method of controlling a fuel gas production apparatus in which conditions of the fuel gas production apparatus can be detected before starti

Problems solved by technology

Operation of the hydrogen production apparatus described above is subject to unscheduled, urgent interruption for some reasons.
For example, an abnormal condition may occur during operation of the hydrogen production apparatus, and a user may stop operation of the hydrogen production apparatus externally.
However, in some situations, it is not possible to

Method used

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  • Method of controlling operation of fuel gas production apparatus
  • Method of controlling operation of fuel gas production apparatus

Examples

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Example

[0060] In view of the above, in the first embodiment, operation of the home fuel gas refining system 10 is started according to a flow chart shown in FIG. 4.

[0061] Firstly, when an unillustrated start up switch (ignition switch) is turned on for inputting an ON signal to the ECU 108, the ECU 108 starts checking the status of the home fuel gas refining system 10. Specifically, the ECU 108 controls the pressure sensors 104b, 104c for pressure detection, and determines whether the detected pressures are lower than a predetermined pressure of P1 kPa (e.g., 10 kPa) (step S1).

[0062] If it is determined that the pressure detected by the pressure sensor 104b is not lower than P1 kPa (NO in step S1), it is determined that there is an obstacle in the off gas discharging air supply passage 36. If it is determined that the pressure detected by the pressure sensor 104c is not lower than P1 kPa, it is determined that there is an obstacle in a water supply passage. The ECU 108 displays an abnorm...

Example

[0112] In the second embodiment, as shown in FIG. 7, a plurality of stop patterns, e.g., the first through sixth stop patterns (blocks 222a through 222f) are determined in advance in correspondence with the system operation modes of the home fuel gas production system 210. Therefore, for example, by stopping operation of the home fuel gas production system 210 in accordance with the stop pattern in correspondence with the abnormal condition detected by the pressure sensors 104a through 104g and the temperature sensors 106a, 106c, 106h, if operation of the system can be started again, a suitable stop process can be performed.

[0113] In summary, in the second through fifth stop patterns (blocks 222b through 222e), if an abnormal condition is detected, operation is continued for a short period of time, and operation is stopped in a normal operation mode for preventing the system failure at the time of starting operation again. Therefore, no undue burden for the maintenance operation is...

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Abstract

An ECU detects various conditions of a home fuel gas refining system before starting operation of the home fuel gas refining system using pressure sensors and temperature sensors. Then, it is determined whether the detected conditions are abnormal or not. If abnormal conditions are determined, a self-repair process is performed for a predetermined abnormal condition among the conditions determined as abnormal.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a method of controlling operation of a fuel gas production apparatus for reforming a hydrogen-containing fuel, which contains, for example, hydrocarbon or alcohol, into a reformed gas, and refining the reformed gas to produce a hydrogen-rich fuel gas. [0003] 2. Description of the Related Art [0004] For example, hydrogen production apparatuses (fuel gas production apparatuses) for reforming a hydrocarbon fuel such as natural gas or a hydrogen-containing fuel such as an alcohol (e.g., methanol) into a hydrogen-containing gas (reformed gas), and refining the hydrogen-containing gas to produce a fuel gas supplied to a fuel cell or the like are adopted conventionally. [0005] For example, Japanese Laid-Open Patent Publication No. 2002-20102 discloses a hydrogen production apparatus shown in FIG. 15. The hydrogen production apparatus includes a compressor 1, a hydrodesulfurization unit 2, a...

Claims

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Application Information

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IPC IPC(8): F23N1/00F23N5/00F23N5/24
CPCF23N5/003F23N5/242F23N2025/04H01M8/0668F23N2031/10F23N2031/20H01M8/0618F23N2027/16F23N2225/04F23N2227/16F23N2231/10F23N2231/20Y02E60/50Y02P70/50
Inventor OKADA, HIKARUSUMI, HIDEAKIHANAI, SATOSHIMACHIDA, HIROSHI
Owner HONDA MOTOR CO LTD
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