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    • 1. 发明专利
    • ガス遮断装置
    • 气体切断装置
    • JP2014232077A
    • 2014-12-11
    • JP2013113949
    • 2013-05-30
    • パナソニック株式会社Panasonic Corp東京瓦斯株式会社Tokyo Gas Co Ltd
    • SHIOTA KAZUKIASANO KAZUTAKAOTANI TAKAHISAFUJISAWA KAZUYAKOBAYASHI KENCHIKOMAKI MICHINORIOWAKU TAKASHISATO TAKANOBUSUZUKI MAMORU
    • G01F3/22F23N5/22F23N5/24G01F1/00
    • 【課題】地震と判定して復帰不可のガス遮断を行った後、地震の規模や地質の地域特性、建物などの条件を考慮したタイミングで所定時間内の感震信号確認を行うことが可能なガス遮断装置を提供すること。【解決手段】震動を感知して感震信号を出力する感震センサ12と、遮断弁14と、感震信号により地震ありと判定したとき遮断弁14でガス遮断を行うコントローラ19を備え、コントローラ19は、地震有りと判定したときは、復帰不可のガス遮断を行った後、第1の所定時間(待機時間)の計時を開始し、第1の所定時間経過後に、第2の所定時間の計時を開始し、この第2の所定時間の計時中に感震センサ12から感震信号を検知しないときは、復帰不可のガス遮断を復帰可能なガス遮断とすることにより、復帰スイッチの押下や自動復帰によりガスが使用できるようにする。【選択図】図1
    • 要解决的问题:提供一种能够在检测到地震之后的预定时间内确认地震信号并且在诸如地震规模等的条件的时刻执行不可恢复的气体切断的气体切断装置, 特征和建筑物被考虑。解决方案:气体切断装置包括:地震传感器12,其检测振动并输出地震信号; 截止阀14; 以及控制器19,其在基于地震信号确定地震时控制截止阀14关闭气体。 控制器19被配置为在执行不可恢复的气体切断操作之后控制截止阀,以便在检测到地震时开始测量第一预定时间(等待时间); 并且在第一预定时间过去之后,开始测量第二预定时间。 当在测量第二预定时间期间没有从地震传感器12检测到地震信号时,控制器19控制切断阀以将不可恢复的气体切断切换到可恢复的气体切断,从而当返回开关为 按下或通过自动恢复。
    • 2. 发明专利
    • Gas shut-off device
    • 气体切断装置
    • JP2013205250A
    • 2013-10-07
    • JP2012075078
    • 2012-03-28
    • Panasonic Corpパナソニック株式会社Tokyo Gas Co Ltd東京瓦斯株式会社Osaka Gas Co Ltd大阪瓦斯株式会社Toho Gas Co Ltd東邦瓦斯株式会社
    • UEKI KOICHIIWAMOTO RYUJIASANO KAZUTAKANAKABAYASHI YUJISAKUMA HIROHISAYUASA KENICHIROOWAKU TAKASHIASADA SHOJIFUJII YASUHIROMASUDA TAKEHIROISHIDA HIROSHISAKANO TAKAHIRO
    • G01F3/22F23K5/00G01F1/66
    • PROBLEM TO BE SOLVED: To prevent erroneous shut-off caused by measurement abnormality monitoring in ultrasonic flowmeter measurement.SOLUTION: A gas shut-off device comprises an upstream-side transceiver 16 and a downstream-side transceiver 17 which are disposed along a flow of a flow passage, transmission means for driving the transceivers 16, 17, switching means 18 for switching transmission/reception of the transceivers 16, 17, receiving means 20 for receiving ultrasonic waves, signal detection control means 22 for controlling detection start of a receiving signal, amplitude determination means 23 which determines an amplitude is equal to or more than a predetermined ultrasonic signal level, propagation time measuring means 24 which measures a time from driving start in the transmission means 19 to signal detection in the amplitude determination means 23, flow computing means 25 which computes an instantaneous flow value from a measurement of the propagation time measuring means 24, flow change determination means 26 which determines the presence/absence of flow fluctuation equal to or more than a predetermined value from the flow computed by the flow computing means 25, and signal detection computing means 27 which computes the time to make earlier the signal detection start in the signal detection control means 22 when the change equal to or more than the predetermined flow is detected by the flow change determination means 26.
    • 要解决的问题:为了防止超声波流量计测量中的测量异常监测引起的错误切断。解决方案:一种气体切断装置,包括上游侧收发器16和下游侧收发器17, 流路,用于驱动收发器16,17的发送装置,用于切换收发机16,17的发送/接收的切换装置18,用于接收超声波的接收装置20,用于控制接收信号的检测开始的信号检测控制装置22 确定振幅的幅度确定装置23等于或大于预定超声波信号电平;传播时间测量装置24,其测量从发送装置19中的开始启动到振幅确定装置23中的信号检测的时间;流量计算 装置25,其计算来自传播时间测量装置24的测量值的瞬时流量值, 流量变化确定装置26,其根据流量计算装置25计算的流量确定等于或大于预定值的流量波动的存在/不存在;以及信号检测计算装置27,其计算使信号检测开始更早的时间 当由流量变化确定装置26检测到等于或大于预定流量的变化时,在信号检测控制装置22中。
    • 4. 发明专利
    • Gas shut-off device
    • 气体切断装置
    • JP2010261746A
    • 2010-11-18
    • JP2009110902
    • 2009-04-30
    • Osaka Gas Co LtdPanasonic CorpToho Gas Co LtdTokyo Gas Co LtdToyo Gas Meter KkYazaki Corpパナソニック株式会社大阪瓦斯株式会社東京瓦斯株式会社東洋ガスメーター株式会社東邦瓦斯株式会社矢崎総業株式会社
    • UEKI KOICHIOTANI TAKAHISANAKABAYASHI YUJIASANO KAZUTAKAKOBAYASHI MASATOMOWATANABE AKIRAKONO SACHIKOYUASA KENICHIRONAGAI NOZOMIISHIKAWA TETSUOKAWAGUCHI KEIJIFUJII YASUHIROISHIDA HIROSHISAKANO TAKAHIROYAMAURA MICHIAKIISOBE KIMIKATSUHORI FUJIOSHIMIZU HIROSHI
    • G01F1/66G01F3/22G01N27/02
    • PROBLEM TO BE SOLVED: To provide a gas shut-off device capable of shutting off a gas by detecting infiltration of water, or the like, into a flow channel or a control part in the device.
      SOLUTION: The gas shut-off device includes an amplification degree determining means 18 for determining a signal amplification degree of a flow rate detection means 8 performing flow rate detection with propagation velocity of an ultrasonic wave between vibrators 6, 7 disposed along the flow channel 4; a propagation time determination means 20 for determining the propagation time; a measurement condition setting means 16 changing a measurement condition; a flow channel inside abnormality determination means 22 for estimating water intrusion in the flow channel, when an abnormally short propagation time is detected at the amplification degree equal to or less than a lower limit determination value; a clocking means 23, activated when the amplification degree of an upper limit determination value or more is determined; a measurement ratio calculation means 24 for obtaining a ratio set at the maximum measurement condition during the clocking; an impedance estimation means 25 for estimating the abnormality of impedance between terminals of the flow rate detection means 8, when it is determined that the amplification degree is equal to or more than the upper limit determination value and the measurement ratio is equal to or more than a prescribed value; and a shut-off means 27 for shutting off the supply of gas at abnormality.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种能够通过检测水等的渗透而关闭气体的气体切断装置到装置中的流路或控制部中。 气体切断装置包括:放大度判定装置18,用于确定流量检测装置8的信号放大度,该流量检测装置8执行流速检测,其传播速度是沿着沿着该方向设置的振动器6,7之间的超声波 流路4; 用于确定传播时间的传播时间确定装置20; 改变测量条件的测量条件设置装置16; 当以等于或小于下限确定值的放大度检测到异常较短的传播时间时,用于估计流道中的水侵入的异常确定装置22内的流路; 当确定上限确定值或更多的放大度时激活的计时装置23; 用于获得在计时期间在最大测量条件下设定的比率的测量比率计算装置24; 用于估计流量检测装置8的端子之间的阻抗的异常的阻抗估计装置25,当确定放大度等于或大于上限确定值并且测量比等于或大于 规定值 以及用于在异常情况下关闭气体供应的切断装置27。 版权所有(C)2011,JPO&INPIT
    • 5. 发明专利
    • Gas shutoff device
    • 气体开关装置
    • JP2010216725A
    • 2010-09-30
    • JP2009064545
    • 2009-03-17
    • Panasonic CorpToho Gas Co LtdTokyo Gas Co Ltdパナソニック株式会社東京瓦斯株式会社東邦瓦斯株式会社
    • MURASE KOJIUEKI KOICHIOTANI TAKAHISANAKABAYASHI YUJIASANO KAZUTAKAKOBAYASHI MASATOMOWATANABE AKIRAKONO SACHIKOYUASA KENICHIRONAGAI NOZOMIISHIDA HIROSHISAKANO TAKAHIRO
    • F23K5/00F23N5/18G01F1/66G01F3/22
    • PROBLEM TO BE SOLVED: To release gas shutoff caused by an abnormality of a sensor generated in an unexpected state of a transient measurement condition.
      SOLUTION: This gas shutoff device includes a flow rate detecting section 11, a flow rate calculating section 12, an abnormal flow rate determining section 13, a valve drive section 14, a valve 15, a return input section 16, a sensor abnormality determining section 17, and a sensor abnormality release input section 18. A valve closing signal C is outputted and the valve 15 is shut off when the sensor abnormality determining section 17 determines an abnormality in the transient sensor, the shutoff of the gas due to the sensor abnormality generated in the unexpected state of transient measurement condition can be released by outputting a sensor abnormality releasing signal F to a sensor abnormality release input section 18, and outputting a valve opening signal E to return the valve 15 when the sensor abnormality release input section 18 receives the sensor abnormality release input from the external.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:释放在瞬时测量条件的意外状态下产生的传感器异常引起的气体截止。 解决方案:该气体截止装置包括流量检测部11,流量计算部12,异常流量判定部13,阀驱动部14,阀15,返回输入部16,传感器 异常判定部17和传感器异常释放输入部18.输出阀关闭信号C,当传感器异常判定部17判定瞬时传感器的异常时,关闭阀15,由于 通过向传感器异常释放输入部18输出传感器异常释放信号F,并且当传感器异常释放输入时输出阀开启信号E以返回阀15,可以解除在瞬时测量条件的意外状态下产生的传感器异常 部分18从外部接收传感器异常释放输入。 版权所有(C)2010,JPO&INPIT