JP2010002264A5 - - Google Patents
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- JP2010002264A5 JP2010002264A5 JP2008160406A JP2008160406A JP2010002264A5 JP 2010002264 A5 JP2010002264 A5 JP 2010002264A5 JP 2008160406 A JP2008160406 A JP 2008160406A JP 2008160406 A JP2008160406 A JP 2008160406A JP 2010002264 A5 JP2010002264 A5 JP 2010002264A5
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- gas
- pressure
- differential pressure
- value
- pressure sensor
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- 239000007789 gas Substances 0.000 claims 60
- 238000003745 diagnosis Methods 0.000 claims 8
- 230000002159 abnormal effect Effects 0.000 claims 1
- 238000009795 derivation Methods 0.000 claims 1
- 239000002737 fuel gas Substances 0.000 claims 1
Claims (7)
前記高圧タンクに設けられた第１ガス圧センサ及び前記配管に設けられた第２ガス圧センサからの前記ガスの圧力値を取得するデータ取得部と、
該データ取得部により取得された圧力Ｐ１と、該圧力Ｐ１の取得から予め定められた設定時間が経過したときに取得された圧力Ｐ２と、から差圧値を求め、該差圧値と設定閾値と比較することにより、前記差圧値が前記設定閾値を超過したかしないかを検定結果として得る差圧検定部と、
互いに重複しない時間帯における少なくとも前後２つの前記検定結果が共に超過の場合、ガス漏れと判定し、
前記第１ガス圧センサから取得して求められた前記差圧値が設定閾値を超過した旨の検定結果と、前記第２ガス圧センサから取得して求められた前記差圧値が設定閾値を超過した旨の検定結果と、がともに得られた場合は、互いに重複しない時間帯における次の検定結果を得る前にガス漏れと判定する判定部と、
を備えることを特徴とするガス漏れ診断装置。 A gas leak diagnostic device for diagnosing whether or not there is a gas leak at any of a high pressure tank in which gas is stored and a pipe connected to the high pressure tank to transport the gas,
A data acquisition unit for acquiring a pressure value of the gas from a first gas pressure sensor provided in the high-pressure tank and a second gas pressure sensor provided in the pipe ;
A differential pressure value is obtained from the pressure P1 acquired by the data acquisition unit and the pressure P2 acquired when a predetermined set time has elapsed since the acquisition of the pressure P1, and the differential pressure value and the set threshold value are obtained. a differential pressure test unit by comparing, the differential pressure value is obtained as a test result or not it has exceeded the set threshold value,
If both of the test results at least before and after two times in a time zone that does not overlap with each other exceed ,
A test result indicating that the differential pressure value obtained by obtaining from the first gas pressure sensor exceeds a set threshold value, and the differential pressure value obtained by obtaining from the second gas pressure sensor has a set threshold value. A determination unit that determines that the gas leaks before obtaining the next test result in a time zone that does not overlap with each other ,
Gas leak diagnostic apparatus comprising: a.
前記高圧タンクに設けられた第１ガス圧センサ及び前記配管に設けられた第２ガス圧センサからの前記ガスの圧力値を取得するデータ取得部と、
該データ取得部により取得された圧力Ｐ１と、該圧力Ｐ１の取得から予め定められた設定時間が経過したときに取得された圧力Ｐ２と、から差圧値を導出する差圧導出部と、
互いに重複しない時間帯において導出された少なくとも前後２つの前記差圧値が共に設定閾値を超過した場合、ガス漏れと判定し、
前記第１ガス圧センサから取得して求められた前記差圧値が設定閾値を超過し、かつ前記第２ガス圧センサから取得して求められた前記差圧値が設定閾値を超過した場合は、互いに重複しない時間帯における次の差圧値導出の前にガス漏れと判定する判定部と、
を備えることを特徴とするガス漏れ診断装置。 A gas leak diagnostic device for diagnosing whether or not there is a gas leak at any of a high pressure tank in which gas is stored and a pipe connected to the high pressure tank to transport the gas,
A data acquisition unit for acquiring a pressure value of the gas from a first gas pressure sensor provided in the high-pressure tank and a second gas pressure sensor provided in the pipe ;
The pressure P1 obtained by the data acquisition unit, a pressure P2 obtained when the time setting predetermined from the acquisition of the pressure P1 has elapsed, the difference-pressure detecting section for deriving a differential pressure value from,
If at least two front and rear of the differential pressure derived in the time period which does not overlap with each other has exceeded a preset threshold together determines that gas leakage,
When the differential pressure value obtained by obtaining from the first gas pressure sensor exceeds a set threshold value and the differential pressure value obtained by obtaining from the second gas pressure sensor exceeds a set threshold value A determination unit that determines a gas leak before derivation of the next differential pressure value in a time zone that does not overlap with each other ;
Gas leak diagnostic apparatus comprising: a.
前記超過は、ベースラインのオフセット異常とみなし、データ取得部が取得した前記圧力値に対し補正を実施する補正部を備えることを特徴とする請求項１から請求項４のいずれか１項に記載のガス漏れ診断装置。 For comparison of the at least two front and rear of the differential pressure between the set threshold value in the time period do not overlap each other, one of the front and rear, which the differential pressure value exceeds the preset threshold, the other of the front and rear, the If the differential pressure value is not intended to exceed the setting threshold value,
The excess is regarded as the offset of the baseline abnormal, according to claims 1, characterized in that it comprises a correction unit for carrying out correction with respect to the pressure value data acquisition unit has acquired in any one of claims 4 Gas leak diagnostic device.
前記ガス漏れ診断装置は、
前記高圧タンクに設けられた第１ガス圧センサ及び前記配管に設けられた第２ガス圧センサからの前記ガスの圧力値を取得するデータ取得部と、
該データ取得部により取得された圧力Ｐ１と、該圧力Ｐ１の取得から予め定められた設定時間が経過したときに取得された圧力Ｐ２と、から差圧値を求め、該差圧値と設定閾値と比較することにより、前記差圧値が前記設定閾値を超過したかしないかを検定結果として得る差圧検定部と、
ガス漏れを判定する判定部と、を備えており、
前記判定部は、
互いに重複しない時間帯における少なくとも前後２つの前記検定結果が共に超過の場合、ガス漏れと判定し、
前記第１ガス圧センサから取得して求められた前記差圧値が設定閾値を超過した旨の検定結果と、前記第２ガス圧センサから取得して求められた前記差圧値が設定閾値を超過した旨の検定結果と、がともに得られた場合は、互いに重複しない時間帯における次の検定結果を得る前にガス漏れと判定すること、
を特徴とするガス漏れ診断方法。 A gas leak diagnosis method of a gas leak diagnosis apparatus for diagnosing whether or not there is a gas leak at any location of a high pressure tank in which gas is stored and a pipe connected to the high pressure tank to transport the gas There,
The gas leak diagnostic device is
A data acquisition unit for acquiring a pressure value of the gas from a first gas pressure sensor provided in the high pressure tank and a second gas pressure sensor provided in the pipe;
A differential pressure value is obtained from the pressure P1 acquired by the data acquisition unit and the pressure P2 acquired when a predetermined set time has elapsed since the acquisition of the pressure P1, and the differential pressure value and the set threshold value are obtained. A differential pressure test part that obtains as a test result whether or not the differential pressure value exceeds the set threshold value by comparing with
A determination unit for determining gas leakage,
The determination unit
If at least two of the test results before and after the time period that do not overlap each other exceed both, it is determined that there is a gas leak,
A test result indicating that the differential pressure value obtained by obtaining from the first gas pressure sensor exceeds a set threshold value, and the differential pressure value obtained by obtaining from the second gas pressure sensor has a set threshold value. If both are obtained together with a test result indicating that it has exceeded, it is determined that there is a gas leak before obtaining the next test result in a time zone that does not overlap with each other.
Gas leakage diagnosis method according to claim.
前記ガス漏れ診断装置は、
前記高圧タンクに設けられた第１ガス圧センサ及び前記配管に設けられた第２ガス圧センサからの前記ガスの圧力値を取得するデータ取得部と、
該データ取得部により取得された圧力Ｐ１と、該圧力Ｐ１の取得から予め定められた設定時間が経過したときに取得された圧力Ｐ２と、から差圧値を導出する差圧導出部と、
ガス漏れを判定する判定部と、を備えており、
前記判定部は、
互いに重複しない時間帯において導出された少なくとも前後２つの前記差圧値が共に設定閾値を超過した場合、ガス漏れと判定し、
前記第１ガス圧センサから取得して求められた前記差圧値が設定閾値を超過し、かつ前記第２ガス圧センサから取得して求められた前記差圧値が設定閾値を超過した場合は、互いに重複しない時間帯における次の差圧値導出の前にガス漏れと判定すること、
を特徴とするガス漏れ診断方法。 A gas leak diagnosis method of a gas leak diagnosis apparatus for diagnosing whether or not there is a gas leak at any location of a high pressure tank in which gas is stored and a pipe connected to the high pressure tank to transport the gas There,
The gas leak diagnostic device is
A data acquisition unit for acquiring a pressure value of the gas from a first gas pressure sensor provided in the high-pressure tank and a second gas pressure sensor provided in the pipe;
A differential pressure deriving unit for deriving a differential pressure value from the pressure P1 acquired by the data acquisition unit and the pressure P2 acquired when a predetermined set time has elapsed since the acquisition of the pressure P1;
A determination unit for determining gas leakage,
The determination unit
When at least the two differential pressure values derived in the time zone that do not overlap each other exceed the set threshold value, it is determined that the gas leaks,
When the differential pressure value obtained by obtaining from the first gas pressure sensor exceeds a set threshold value and the differential pressure value obtained by obtaining from the second gas pressure sensor exceeds a set threshold value Determining a gas leak before deriving the next differential pressure value in a non-overlapping time zone,
Gas leakage diagnosis method according to claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008160406A JP5007278B2 (en) | 2008-06-19 | 2008-06-19 | Gas leak diagnostic device and gas leak diagnostic method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008160406A JP5007278B2 (en) | 2008-06-19 | 2008-06-19 | Gas leak diagnostic device and gas leak diagnostic method |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2010002264A JP2010002264A (en) | 2010-01-07 |
| JP2010002264A5 true JP2010002264A5 (en) | 2010-12-24 |
| JP5007278B2 JP5007278B2 (en) | 2012-08-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2008160406A Expired - Fee Related JP5007278B2 (en) | 2008-06-19 | 2008-06-19 | Gas leak diagnostic device and gas leak diagnostic method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5007278B2 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435403B (en) * | 2011-09-21 | 2014-01-22 | 浙江大学宁波理工学院 | Integrated device applicable to differential pressure leakage detection of high/low pressures |
| US9397354B2 (en) * | 2013-04-24 | 2016-07-19 | GM Global Technology Operations LLC | Systems and methods to monitor and control a flow of air within a fuel cell stack |
| JP6650194B2 (en) * | 2014-04-21 | 2020-02-19 | 株式会社ケーヒン | Detection device and detection method |
| CN105444968B (en) * | 2015-12-28 | 2019-01-11 | 苏州赛腾精密电子股份有限公司 | A kind of airtight pressure maintaining test equipment |
| CN112610905B (en) * | 2020-12-25 | 2022-09-20 | 中法渤海地质服务有限公司 | Offshore platform pipeline gas leakage identification method based on image identification and infrared thermal imaging technology |
| CN114061848B (en) * | 2021-11-18 | 2023-05-26 | 北京卫星环境工程研究所 | Method for identifying leak hole of reinforced sealing structure of spacecraft |
| CN115032340A (en) * | 2022-06-01 | 2022-09-09 | 上海贝辉木业有限公司 | Waste gas monitoring method and device for glue making workshop, electronic equipment and storage medium |
| WO2024004535A1 (en) * | 2022-06-29 | 2024-01-04 | 株式会社フジキン | Control valve seat leak detection method |
| CN115172820A (en) * | 2022-08-15 | 2022-10-11 | 上海重塑能源科技有限公司 | Hydrogen leakage detection method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5398542A (en) * | 1992-10-16 | 1995-03-21 | Nkk Corporation | Method for determining direction of travel of a wave front and apparatus therefor |
| JP3432458B2 (en) * | 1999-07-30 | 2003-08-04 | 富士通テン株式会社 | Gas leak detection and fail-safe control method and apparatus for gas fueled internal combustion engine |
| JP3949348B2 (en) * | 2000-04-20 | 2007-07-25 | 本田技研工業株式会社 | Gas fuel supply device |
| JP2005127834A (en) * | 2003-10-23 | 2005-05-19 | Fujitsu Ten Ltd | Gas leak detector |
| JP2007280671A (en) * | 2006-04-04 | 2007-10-25 | Toyota Motor Corp | Gas fuel system and its abnormality detection method |
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2008
- 2008-06-19 JP JP2008160406A patent/JP5007278B2/en not_active Expired - Fee Related
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