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1. 发明专利

JP2001330532A GAS SHUT-OFF DEVICE 失效
公开(公告)号：JP2001330532A
公开(公告)日：2001-11-30
申请号：JP2000153996
申请日：2000-05-25
申请人： MATSUSHITA ELECTRIC IND CO LTD , TOYO GASMETER CO , YAZAKI CORP
发明人： ONISHI KAORU , NIIMURA NORIO , UEKI KOICHI , HONDA GOJI , MIZUKOSHI JIRO , ISONO NOBORU , HORI FUJIO , MASUDA ISAO , YAMASHITA TOMIISA , HARADA TOSHIHIRO
IPC分类号： G01F1/00 , F17D5/06 , G01F1/66 , G01F3/22 , G01M3/00 , G01M3/24 , G01M3/28
摘要： PROBLEM TO BE SOLVED: To provide a gas shut-off device capable of promptly detecting a leak of a medium in a supply line based on its instantaneous flow rate and capable of accurately monitoring the gas using condition. SOLUTION: A flow rate computing means 14 converts a flow velocity detected by measuring signal transmission time in the medium into a flow rate value which is compared by a leak judging means 15 with a flow rate value set by a leak amount setting means 19 to perform leakage determination. Leak duration is counted by a leak duration counting means 16. If the counted duration reaches a prescribed value, an abnormality determination means 17 determines that an abnormal gas leak exists and displays an alarm by means of an informative means 18.

2. 发明专利

JP2004011770A GAS SHUT-OFF DEVICE 审中-公开
公开(公告)号：JP2004011770A
公开(公告)日：2004-01-15
申请号：JP2002166065
申请日：2002-06-06
申请人： MATSUSHITA ELECTRIC IND CO LTD , TOYO GASMETER CO
发明人： UEKI KOICHI , ONISHI KAORU , MIZUKOSHI JIRO , ISONO NOBORU , MORITA TOSHIKAZU
IPC分类号： G01F3/22 , F17D1/04 , F17D3/01 , G01M3/28
摘要： PROBLEM TO BE SOLVED: To provide a gas shut-off device achieving high gas consumption measuring precision, and providing advantages for cost of gas for users. SOLUTION: As a flow detecting means 19 detects gas flow, it is converted into a flow signal to be outputted, and periods till next output of the flow signal are measured by a period measuring means 20. A period determining means 22 determines if periods measured by the period measuring means 20 is over periods set by a period setting means 21 by a prescribed flow or not. When it is, a time counting means 23 starts counting time. When a time determining means 25 determines that a lower limit time set by a time setting means 24 is exceeded, a flow value converted by a flow converting means 26 is integrated by a flow integration means 27. COPYRIGHT: (C)2004,JPO

3. 发明专利

JP2001295956A GAS CUT-OFF DEVICE 失效
公开(公告)号：JP2001295956A
公开(公告)日：2001-10-26
申请号：JP2000113978
申请日：2000-04-14
申请人： MATSUSHITA ELECTRIC IND CO LTD , TOYO GASMETER CO
发明人： ONISHI KAORU , UEKI KOICHI , HONDA GOJI , NIIMURA NORIO , MIZUKOSHI JIRO , ISONO NOBORU , HORI FUJIO
IPC分类号： F16K29/00 , F16K37/00 , F23K5/00
摘要： PROBLEM TO BE SOLVED: To provide a cut-off device capable of preventing the sticking gas phenomenon of a valve and a gas passage even in a gas supply stop state (a delivery mode) for a long period of time. SOLUTION: The closed time of the valve 3 after shifting to the delivery mode is counted by a valve closed time counting means 7, and the closed time of the gas passage is set by a valve closed time setting means 8. The time counted by the valve closed time counting means 7 is compared with the time set by the valve closed time setting means 8, by a valve closed time comparing means 9. Upon exceeding the set time, a valve opening signal is outputted by a valve opening driving means 6 via a control means 2 to open the valve 3, and after the lapse of fixed time, the action of closing the valve 3 by a valve closing driving means 4 is repeated to prevent the sticking of the valve 3.

4. 发明专利

JP2001264141A GAS SAFETY DEVICE 失效
公开(公告)号：JP2001264141A
公开(公告)日：2001-09-26
申请号：JP2000081120
申请日：2000-03-23
申请人： MATSUSHITA ELECTRIC IND CO LTD , TOYO GASMETER CO
发明人： HONDA GOJI , UEKI KOICHI , ONISHI KAORU , NIIMURA NORIO , MIZUKOSHI JIRO , ISONO NOBORU , HORI FUJIO
IPC分类号： G01F3/22 , G01F1/00
摘要： PROBLEM TO BE SOLVED: To provide a gas safety device in which the integrated usage time of an appliance to be maintained is clocked and which can know a maintenance timing. SOLUTION: The gas safety device is provided with a flow-rate detection part 1. The device is provided with a flow-rate-division registration part 2 in which a detection flow rate is compared with a threshold value so as to allocated to a corresponding flow-rate division. The device is provided with a flow-rate-division setting part 3 which sets the flow-rate division of the appliance to be maintained. The device is provided with a flow-rate-division judgment part 4 which outputs a signal to a next stage while the flow-rate division of the registration part 2 agrees with the flow- rate division of the setting part 3. The device is provide with an operating-time measuring part 5 which clocks and integrates the time in which the judgment part 4 outputs the signal. The device is provided with a reference-time setting part 6 which sets the usage time required for a maintenance operation. The device is provided with an operating-time judgment part 7 which outputs a warning signal when the measured time exceeds the set time. The device is provided with a reporting means 8 which reports a maintenance warning on the basis of the output of the setting part 7.

5. 发明专利

JP2003130707A GAS SHUTOFF EQUIPMENT 审中-公开
公开(公告)号：JP2003130707A
公开(公告)日：2003-05-08
申请号：JP2001329139
申请日：2001-10-26
申请人： MATSUSHITA ELECTRIC IND CO LTD , TOYO GASMETER CO
发明人： UEKI KOICHI , ONISHI KAORU , ASANO KAZUTAKA , MIZUKOSHI JIRO , ISONO NOBORU , MORITA TOSHIKAZU
IPC分类号： G01F3/22 , G01F1/00 , G01F15/075
摘要： PROBLEM TO BE SOLVED: To provide gas shutoff equipment that measures a period by a pulse signal responding to a fixed flow rate to convert the period to a flow rate and highly accurately and speedily totalize the flow rate for every group of the flow rate. SOLUTION: The flow rate of gas is detected by a means 19 for detecting the flow rate, and then converted to the pulse signal to be outputted. The period until the next pulse signal is outputted is measured by a means 20 for measuring the period. To which of the flow rate divisions set by a period setting means 21 it belongs is determined by a period decision means 22 based on the period measured by the period measuring means 20 belongs, and a flow rate value converted by a means 23 for converting the flow rate is totalized by a means 24 for totalizing the flow rate for every flow rate group applicable.

6. 发明专利

JP2001337701A GAS-BLAST CIRCUIT BREAKER 失效
公开(公告)号：JP2001337701A
公开(公告)日：2001-12-07
申请号：JP2000155937
申请日：2000-05-26
申请人： MATSUSHITA ELECTRIC IND CO LTD , TOYO GASMETER CO
发明人： UEKI KOICHI , MATSUDA AKIRA , ASANO KAZUTAKA , ONISHI KAORU , MIZUKOSHI JIRO , ISONO NOBORU , HORI FUJIO
IPC分类号： G08B21/00 , G05B9/02 , G05B23/02 , G08B21/16
摘要： PROBLEM TO BE SOLVED: To provide a gas-blast circuit breaker which detects that an erroneous of gas leak alarm sort is jointed with a gas-blast circuit breaker. SOLUTION: The sort of a gas-leak-alarm 2 is decided with based on a driving alarm outputted from an alarm connection detection intermittent driving mean 19 and an alarm signal intermittent driving mean. When this is different from that primarily connected, gas is shut off or it is informed.

7. 发明专利

JP2002031556A GAS CIRCUIT BREAKER 失效
公开(公告)号：JP2002031556A
公开(公告)日：2002-01-31
申请号：JP2000214656
申请日：2000-07-14
申请人： MATSUSHITA ELECTRIC IND CO LTD , TOYO GASMETER CO
发明人： ONISHI KAORU , NIIMURA NORIO , UEKI KOICHI , HONDA GOJI , MIZUKOSHI JIRO , ISONO NOBORU , HORI FUJIO
IPC分类号： G01F3/22 , G01F1/00 , G01F15/06
摘要： PROBLEM TO BE SOLVED: To provide a gas circuit breaker capable of switchably displaying an instantaneous flow rate in a part of an integrated flow rate display mean. SOLUTION: The instantaneous flow rate measured by an instantaneous flow rate measurement means 1 is computed into an instigated flow rate by mean of an integrated flow rate counting means 2 to be displayed in an integrated flow rate display means 3. If inspection of minor gas leakage is required in installation or the like, the instantaneous flow rate is inputted to the integrated flow rate display means 3 by means of an auxiliary display switching means 7 when a display switching signal is inputted from an auxiliary display switch inputting means 6, and consequently, the instantaneous flow rate is displayed in an auxiliary display part 3b.

8. 发明专利

JP2001330243A GAS CUTOFF DEVICE 失效
公开(公告)号：JP2001330243A
公开(公告)日：2001-11-30
申请号：JP2000151523
申请日：2000-05-23
申请人： MATSUSHITA ELECTRIC IND CO LTD , TOYO GASMETER CO
发明人： UEKI KOICHI , ONISHI KAORU , NIIMURA NORIO , MIZUKOSHI JIRO , ISONO NOBORU , HORI FUJIO
IPC分类号： F23N5/18
摘要： PROBLEM TO BE SOLVED: To provide a gas cutoff device capable of precisely performing the determination of zero-flow rate condition at the time when a gas appliance such as town gas and liquefied petroleum gas is not used and the measurement of the used flow rate and accurately monitoring the condition of gas use. SOLUTION: The flow velocity detected by measuring the signal propagation time inside a medium by a flow velocity detecting means 14 is converted into the value of flow rate by a flow rate operation means 20. This value of flow rate is compared with a set value that is preset by a zero-flow rate range setting means 21 to determine that the value of flow rate is zero with variations in measurement and the like considered by a zero-flow rate determining means 22. When the determination is except a zero-flow rate, whether or not the value of flow rate by the flow rate operation means 20 is a normal value is determined by an abnormality determining means 23. When abnormality is determined, the cutoff means 24 cuts off a medium flow path 1. When the determination is except the zero-flow rate, the value of flow rate by the flow rate operation means 20 is integrated by a flow rate integrating means 26.

9. 发明专利

JP2001159575A PRESSURE TYPE MINUTE GAS LEAKAGE DETECTING DEVICE AND METHOD 失效
公开(公告)号：JP2001159575A
公开(公告)日：2001-06-12
申请号：JP34184399
申请日：1999-12-01
申请人： YAZAKI CORP , MATSUSHITA ELECTRIC IND CO LTD
发明人： ISOBE KIMIKATSU , ASANO KAZUTAKA , UEKI KOICHI , SAITO JUNICHI , ONISHI KAORU
IPC分类号： G01F1/00 , G01F3/22 , G01M3/00
摘要： PROBLEM TO BE SOLVED: To provide a pressure type minute gas leakage detecting device and method capable of performing determination of a no minute leakage or gas by an optimal value in accordance with a gas supplying facility. SOLUTION: Pressure inside a gas supply piping detected by a pressure detecting means 6 immediately after stopping of gas usage is stored in a pressure storing means 10c-1 as a reference pressure, and a pressure difference with the reference pressure is determined by a differential pressure means 10a-1. The pressure difference and a determination value stored in a determination value storing means 10c-4 for determining a no minute gas leakage is compared by a no leakage determining means 10a-2, and when the pressure difference is larger than the determination value, a no minute gas leakage is determined. When the no minute gas leakage is not determined for a period of a predetermined number of days and the determination value is the same as a predetermined lower limit, an alarm means 10a-3 warns of a minute gas leakage. When the no minute gas leakage is not determined for the period of the predetermined number of days and the determination value is larger than the predetermined lower limit, a determination value modifying means 10a-4 lower the determination value and it is stored in place of the previous one.

10. 发明专利

JP2001159555A LP GAS RESIDUAL AMOUNT CONTROL DEVICE 失效
公开(公告)号：JP2001159555A
公开(公告)日：2001-06-12
申请号：JP34184299
申请日：1999-12-01
申请人： YAZAKI CORP , MATSUSHITA ELECTRIC IND CO LTD
发明人： ISOBE KIMIKATSU , KAWASHIMA SADAMU , ASANO KAZUTAKA , UEKI KOICHI , SAITO JUNICHI , ONISHI KAORU
IPC分类号： G01F15/075
摘要： PROBLEM TO BE SOLVED: To provide an LP gas residual amount control device capable of certainly preventing generation of an exhaustion state of gas supplied from a gas container even if a consumption state rapidly changes. SOLUTION: In this control device, an alarm signal generation means 10a-2 generates an alarm signal when the alarm signal generation means 10a-2 detects reduction of a residual gas amount in the gas container 1 below a decision value on the basis of an integrated flow rate value of a gas flow integration means 10a-1 integrating a flow rate of an LP gas from the gas container 1. The integrated flow rate value of the gas flow integration means 10a-1 can be reset. A use time shutoff device 10a-3 shuts off supply of the LP gas when the LP gas is continuously supplied over a predetermined use time shutoff set value, and automatically resets the use time shutoff set value when the LP gas is continuously supplied to a gas combustor over a predetermined watch value. When the use time shutoff device 10a-3 start to reset the use time shutoff set value after the generation of the alarm signal, an emergency alarm signal generation means 10a-4 generates an emergency alarm signal.

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