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1. 发明专利

JP2013205250A Gas shut-off device 有权
标题翻译：气体切断装置
公开(公告)号：JP2013205250A
公开(公告)日：2013-10-07
申请号：JP2012075078
申请日：2012-03-28
申请人： 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
发明人： UEKI KOICHI , IWAMOTO RYUJI , ASANO KAZUTAKA , NAKABAYASHI YUJI , SAKUMA HIROHISA , YUASA KENICHIRO , OWAKU TAKASHI , ASADA SHOJI , FUJII YASUHIRO , MASUDA TAKEHIRO , ISHIDA HIROSHI , SAKANO TAKAHIRO
IPC分类号： G01F3/22 , F23K5/00 , G01F1/66
摘要： 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.
摘要翻译：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。

2. 发明专利

JP2013205249A Gas shut-off device 有权
标题翻译：气体切断装置
公开(公告)号：JP2013205249A
公开(公告)日：2013-10-07
申请号：JP2012075067
申请日：2012-03-28
申请人： 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
发明人： KAMIMURA TAKANORI , IWAMOTO RYUJI , ASANO KAZUTAKA , SAKUMA HIROHISA , YUASA KENICHIRO , OWAKU TAKASHI , ASADA SHOJI , FUJII YASUHIRO , MASUDA TAKEHIRO , ISHIDA HIROSHI , SAKANO TAKAHIRO
IPC分类号： G01F3/22 , F23K5/00 , G01F15/075
摘要： PROBLEM TO BE SOLVED: To prevent flow abnormality or sensor abnormality from being erroneously determined based on temporary air mixture or the like after a construction in which a meter is removed, left for several hours and then mounted again.SOLUTION: While a test shut-off input section 11 is operated, a sensor abnormality determination by sensor abnormality determination means 7 is not performed for a predetermined time and an abnormal flow determination by abnormal flow determination means is not performed for a predetermined time. In response to operation of a recovery input section 10, the sensor abnormality determination means 7 restarts the sensor abnormality determination and the abnormal flow determination means 6 restarts the abnormal flow determination. Furthermore, even if the operation of the recovery input section 10 is forgotten, after the lapse of the predetermined time, the sensor abnormality determination means 7 restarts the sensor abnormality determination and the abnormal flow determination means 6 restarts the abnormal flow determination.
摘要翻译：要解决的问题：为了防止在拆除仪表的结构之后基于临时空气混合物等错误地确定流量异常或传感器异常，留下数小时然后再次安装。解决方案：关闭输入部11动作，在规定时间内不进行传感器异常判定单元7的传感器异常判定，并且在规定时间内不进行异常流量判定单元的异常流动判定。响应于恢复输入部分10的操作，传感器异常确定装置7重新启动传感器异常判定，异常流量确定装置6重新启动异常流量确定。此外，即使忘记了恢复输入部10的动作，在经过了规定时间之后，传感器异常判定单元7重新开始传感器异常判定，异常流程判定单元6重新启动异常流动判定。

3. 发明专利

JP2010261746A Gas shut-off device 有权
标题翻译：气体切断装置
公开(公告)号：JP2010261746A
公开(公告)日：2010-11-18
申请号：JP2009110902
申请日：2009-04-30
申请人： Osaka Gas Co Ltd , Panasonic Corp , Toho Gas Co Ltd , Tokyo Gas Co Ltd , Toyo Gas Meter Kk , Yazaki 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
发明人： UEKI KOICHI , OTANI TAKAHISA , NAKABAYASHI YUJI , ASANO KAZUTAKA , KOBAYASHI MASATOMO , WATANABE AKIRA , KONO SACHIKO , YUASA KENICHIRO , NAGAI NOZOMI , ISHIKAWA TETSUO , KAWAGUCHI KEIJI , FUJII YASUHIRO , ISHIDA HIROSHI , SAKANO TAKAHIRO , YAMAURA MICHIAKI , ISOBE KIMIKATSU , HORI FUJIO , SHIMIZU HIROSHI
IPC分类号： G01F1/66 , G01F3/22 , G01N27/02
摘要： 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
摘要翻译：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

4. 发明专利

JP2013205246A Gas shut-off device 有权
标题翻译：气体切断装置
公开(公告)号：JP2013205246A
公开(公告)日：2013-10-07
申请号：JP2012075051
申请日：2012-03-28
申请人： 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
发明人： NAGATOMO KENJI , IWAMOTO RYUJI , ASANO KAZUTAKA , SAKUMA HIROHISA , YUASA KENICHIRO , OWAKU TAKASHI , ASADA SHOJI , FUJII YASUHIRO , MASUDA TAKEHIRO , ISHIDA HIROSHI , SAKANO TAKAHIRO
IPC分类号： G01F3/22 , G01F1/66
摘要： PROBLEM TO BE SOLVED: To provide a gas shut-off device in which integration in an abnormal flow is stopped and integration in a normal flow is performed in unexpected states of various transient measuring conditions.SOLUTION: When a recovery safety confirmation end signal G of a recovery safety confirmation section 18 is obtained, a post-recovery-completion flow monitoring section 19 determines normality or abnormality from a gain H of a gain adjustment section 102 and, in the case of normality, outputs a flow B to an integration section 17 or an abnormal flow determination section 13. In the case of abnormality, the flow B is not outputted to the integration part 17 or the abnormal flow determination section 13 until the flow becomes normal, thereby performing integration or abnormality determination with a normal flow value.
摘要翻译：要解决的问题：提供一种在各种瞬态测量条件的不期望状态下停止异常流动的积分并且在正常流量中的积分进行的气体切断装置。解决方案：当恢复安全确认结束信号G为恢复安全确认部分18，恢复后完成流程监控部分19根据增益调整部分102的增益H确定正常或异常，并且在正常情况下，将流程B输出到积分部分17 或异常流量判定部13.在异常的情况下，流量B不会输出到积分部17或异常流量判定部13，直到流动正常为止，由此以正常流量值进行积分或异常判定。

5. 发明专利

JP2010237060A Gas meter and control method therefor 有权
标题翻译：气体计及其控制方法
公开(公告)号：JP2010237060A
公开(公告)日：2010-10-21
申请号：JP2009085870
申请日：2009-03-31
申请人： High Pressure Gas Safety Institute Of Japan , Osaka Gas Co Ltd , Panasonic Corp , Toho Gas Co Ltd , Tokyo Gas Co Ltd , Toshiba Toko Meter Systems Co Ltd , 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 , 東光東芝メーターシステムズ株式会社 , 東邦瓦斯株式会社 , 高圧ガス保安協会
发明人： KOBAYASHI MASATOMO , NAGAI NOZOMI , KONO SACHIKO , OTSUBO KOICHIRO , SUGANO KATSUICHI , NOZAWA MASAHIRO , FUJII YASUHIRO , ISHIDA HIROSHI , NANBA MITSUO , KUBO KAZUO , SAITO TAKASHI , MARUYAMA KIYOSHI , KATO AKIRA , ASANO KAZUTAKA , IWAMOTO RYUJI , NAKAMURA HIROSUMI , OTANI TAKAHISA , HIRAYAMA YUICHI , ISHINO HITOAKI , MORINAGA TAKESHI , SAKAMAKI MICHIHIKO
IPC分类号： G01F3/22
摘要： PROBLEM TO BE SOLVED: To enable an appropriate safety-continuing time to be set on the basis of an actual flow-volume state at not only an ignition timing in equipment which carries out a proportional control for a fan heater or the like, even if a gas flow volume is decreased and increased gradually after an ignition.
SOLUTION: After the ignition, an average flow volume calculating section 220 calculates an average flow volume Qave for each prescribed time interval, based on the gas flow volume Qi, and a determining means 281 of a registration flow-volume compensation determining section 280 determines whether the average flow volume Qave is equal to or less than a threshold Qd1, and a counter means 282 increments a count value being continuously equal to or less than the threshold, determines whether the count value being continuously equal to or less than the threshold reaches a prescribed set value N, and outputs a compensation request signal of a registration flow volume to a protective section 250 when reaching the set value N, and then the protective section 250 deletes all of individual flow volumes Q0, Q1, ..., registered in an individual flow volume table 271 of a memory section 270, and newly registers the current average flow volume Qave as the maximum flow volume Q0.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了不仅在实现风扇加热器等的比例控制的设备中的点火正时基于实际流量状态来设定适当的安全持续时间即使在点火后气体流量减少并逐渐增加。解决方案：点火之后，平均流量计算部分220基于气体流量Qi计算每个规定时间间隔的平均流量Qave，以及对准流量补偿确定部分的确定装置281 280确定平均流量Qave是否等于或小于阈值Qd1，并且计数器装置282将连续等于或小于阈值的计数值递增，确定计数值是否连续等于或小于阈值阈值达到规定的设定值N，并且在达到设定值N时将登记流量的补偿请求信号输出到保护部250，然后保护部250删除各个流量Q0，Q1，...，，登记在存储部分270的单独流量表271中，并且将当前平均流量Qave新登记为最大流量Q0。版权所有（C）2011，JPO＆INPIT

6. 发明专利

JP2009243849A Gas meter with gas supply monitoring function 有权
标题翻译：气体计量器与气体供应监测功能
公开(公告)号：JP2009243849A
公开(公告)日：2009-10-22
申请号：JP2008093781
申请日：2008-03-31
申请人： High Pressure Gas Safety Institute Of Japan , Osaka Gas Co Ltd , Panasonic Corp , Toho Gas Co Ltd , Tokyo Gas Co Ltd , Toshiba 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 , 東邦瓦斯株式会社 , 株式会社東芝 , 高圧ガス保安協会
发明人： KAWAGUCHI KEIJI , OKAMURA SHIGENORI , FUJII YASUHIRO , SUZUKI MAMORU , FUJIMOTO TATSUO , KOBAYASHI MASATOMO , NAGAI NOZOMI , KONO SACHIKO , ISHIDA HIROSHI , NANBA MITSUO , KUBO KAZUO , SAITO TAKASHI , MARUYAMA KIYOSHI , KATO AKIRA , ASANO KAZUTAKA , IWAMOTO RYUJI , NAKAMURA HIROSUMI , OTANI TAKAHISA , HIRAYAMA YUICHI , ISHINO HITOAKI , SAKAMAKI MICHIHIKO
IPC分类号： F23K5/00 , F23N5/18 , F23N5/26 , G01F3/22
摘要： PROBLEM TO BE SOLVED: To add a function of generating information of blocking gas supply to a cooking stove or supply warning information to a gas meter, and to provide the gas meter with a gas supply monitoring function generating the information in the most suitable state.
SOLUTION: The gas meter is equipped with a used instrument determination means X2 for determining the kind of a gas instrument used on the downstream side from a change pattern of gas flow rate supplied to the downstream side, and a single usage determination means X3 comprising a gas flow rate storing means m for storing the gas flow rate over time until a first time limit and a first clocking means X4a for clocking continual operation of the cooking stove. When an operating time of the cooking stove exceeds the first time limit, the single usage determination means X3 determines whether the cooking stove is used in a state of being regarded as a single usage status, based on change of the gas flow rate stored in the gas flow rate storing means m. Thus, the gas meter generates the gas supply blocking information or the supply warning information.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：向烹饪炉添加阻断气体供应信息或向燃气表供应警告信息的功能，并且向气体计量器提供最多产生信息的气体供应监控功能合适的状态。解决方案：气量计配备有用于确定从供给下游侧的气体流量的变化模式而在下游侧使用的气体仪器的种类的二手仪器确定装置X2和单个使用确定装置 X3包括用于存储一段时间内的气体流量直到第一时间限制的气体流量存储装置m和用于计时烹饪炉的连续操作的第一计时装置X4a。当烹饪炉的操作时间超过第一时间限制时，单次使用确定装置X3基于存储在烹饪炉中的气体流量的变化来确定烹饪炉是否被以被认为是单一使用状态的状态使用气体流量存储装置m。因此，燃气表产生供气阻塞信息或供应警告信息。版权所有（C）2010，JPO＆INPIT

7. 发明专利

JP2013205247A Gas shut-off device 有权
标题翻译：气体切断装置
公开(公告)号：JP2013205247A
公开(公告)日：2013-10-07
申请号：JP2012075058
申请日：2012-03-28
申请人： 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
发明人： IWAMOTO RYUJI , ASANO KAZUTAKA , SAKUMA HIROHISA , YUASA KENICHIRO , OWAKU TAKASHI , ASADA SHOJI , FUJII YASUHIRO , MASUDA TAKEHIRO , ISHIDA HIROSHI , SAKANO TAKAHIRO
IPC分类号： G01F3/22 , F23K5/00 , G01F1/00
摘要： PROBLEM TO BE SOLVED: To provide a gas shut-off device in which the number of times of detecting sensor abnormality is counted, the detected number of times is compared with a predetermined number of times and when the detected number of times is less than the predetermined number of times, even without sensor abnormality cancellation input, recovery can be performed by a manual recovering operation.SOLUTION: A gas shut-off device comprises sensor abnormality determination means 6 which determines predetermined sensor abnormality in flow measurement and outputs a shut-off signal when abnormality is established. The number of times of determining abnormality by means of the sensor abnormality determination means 6 is counted by sensor abnormality time count means 8 and when sensor abnormality time determination means 7 determines that a time count value of the sensor abnormality time count means 8 is less than a sensor abnormality determination count 9, recovery can be performed by manual recovery means 11 in accordance with an instruction of recovery method decision means 10.
摘要翻译：要解决的问题：为了提供其中对传感器异常检测次数进行计数的气体切断装置，将检测次数与预定次数进行比较，并且当检测到的次数小于预定次数，即使没有传感器异常消除输入，也可以通过手动恢复操作进行恢复。解决方案：气体切断装置包括传感器异常判定装置6，其确定流量测量中的预定传感器异常并输出关闭当异常建立时发出信号。通过传感器异常判定装置6判定异常的次数由传感器异常时间计数装置8进行计数，当传感器异常时间判定装置7判断为传感器异常时间计数装置8的时间计数值小于传感器异常确定计数9，可以根据恢复方法判定装置10的指令由手动恢复装置11执行恢复。

8. 发明专利

JP2013205245A Gas shut-off device 有权
标题翻译：气体切断装置
公开(公告)号：JP2013205245A
公开(公告)日：2013-10-07
申请号：JP2012075046
申请日：2012-03-28
申请人： 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
发明人： SHIOTA KAZUKI , IWAMOTO RYUJI , ASANO KAZUTAKA , SAKUMA HIROHISA , YUASA KENICHIRO , OWAKU TAKASHI , ASADA SHOJI , FUJII YASUHIRO , MASUDA TAKEHIRO , ISHIDA HIROSHI , SAKANO TAKAHIRO
IPC分类号： G01F1/00 , G01F3/22
摘要： PROBLEM TO BE SOLVED: To provide a gas shut-off device capable of preventing the absence of a flow from being determined inexactly when the flow is shifted to a minus side by pulsation or the like.SOLUTION: A gas shut-off device comprises flow measuring means 1, time measuring means 4, flow absence determination means 2 which determines the presence/absence of a flow at a first predetermined time interval and resets a time measurement of the time measuring means 4 when the absence of the flow is determined, leakage determination means 5 which determines the presence of leakage when a predetermined period of time is measured by the time measuring means 4, and flow shift determination means 3 which determines whether the flow is shifted to a minus side. In the case where the flow shift determination means 3 determines that the flow is shifted to the minus side, the time measurement of the time measuring means 4 is prevented from being reset by the flow absence determination means 2.
摘要翻译：要解决的问题：提供一种气体切断装置，其能够防止不通过脉动等将流量偏移到负侧时精确地确定流量。解决方案：气体切断装置包括流动测量装置1，时间测量装置4，流量不存在确定装置2，其在第一预定时间间隔确定流量的存在/不存在，并且当确定不存在流量时复位时间测量装置4的时间测量，泄漏确定装置5，其在由时间测量装置4测量预定时间段时确定泄漏的存在;以及流量确定装置3，其确定流量是否偏移到负侧。在流量偏移判定单元3判断为流向偏移侧的情况下，由流量不存在判定单元2防止时间测量单元4的时间测量被复位。

9. 发明专利

JP2010217080A Gas meter and method of detecting error in flow rate measurement 有权
标题翻译：气流计和检测流量测量误差的方法
公开(公告)号：JP2010217080A
公开(公告)日：2010-09-30
申请号：JP2009065843
申请日：2009-03-18
申请人： Osaka Gas Co Ltd , Toho Gas Co Ltd , Tokyo Gas Co Ltd , 大阪瓦斯株式会社 , 東京瓦斯株式会社 , 東邦瓦斯株式会社
发明人： KOBAYASHI MASATOMO , KONO SACHIKO , NAGAI NOZOMI , FUJII YASUHIRO , ISHIDA HIROSHI
IPC分类号： G01F3/22 , G01F1/00 , G01F15/04
摘要： PROBLEM TO BE SOLVED: To provide a gas meter or the like provided in a gas supply path and including a measurement function of a gas flow rate, with which an error in the flow rate measurement is correctly and efficiently detected and a security function can be improved. SOLUTION: The gas meter includes: a flow rate measuring means for measuring an instantaneous flow rate of a gas passing through a gas flow path at predetermined time intervals; a calculating means for obtaining an average flow rate of the gas during predetermined time using the instantaneous flow rate measured by the flow rate measuring means; and an error determining means for comparing the average flow rate obtained by the calculating means with a predetermined negative threshold value and determining that the flow rate measurement by the flow rate measuring means contains an error if a case where the average flow rate is smaller occurs a predetermined number or more times during a predetermined time period. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种设置在气体供给路径中的气量计等，并且包括气体流量的测量功能，能够正确有效地检测流量测量的误差和安全性功能可以改善。气体计量器包括：流量测量装置，用于以预定的时间间隔测量通过气体流路的气体的瞬时流量; 计算装置，用于使用由流量测量装置测量的瞬时流量，在预定时间内获得气体的平均流量; 以及误差确定装置，用于将由计算装置获得的平均流量与预定的负阈值进行比较，并且如果平均流量较小的情况发生，则确定流量测量装置的流量测量值包含误差a 预定次数以上。版权所有（C）2010，JPO＆INPIT

10. 发明专利

JP2006292380A Ultrasonic gas meter 审中-公开
标题翻译：超声波气体计
公开(公告)号：JP2006292380A
公开(公告)日：2006-10-26
申请号：JP2005109121
申请日：2005-04-05
申请人： Aichi Tokei Denki Co Ltd , Osaka Gas Co Ltd , Toho Gas Co Ltd , Tokyo Gas Co Ltd , Toshiba Corp , 大阪瓦斯株式会社 , 愛知時計電機株式会社 , 東京瓦斯株式会社 , 東邦瓦斯株式会社 , 株式会社東芝
发明人： FUJIMOTO TATSUO , SUZUKI MAMORU , YUASA KENICHIRO , FUJII YASUHIRO , KIMURA YUKIO , HIROYAMA TORU , HANAMURA KOJI , MAOKA TADANORI , SAMEDA YOSHITOMI , TAKAHASHI YUKIO , KIMURA TATSUYA , HASEBE SHINYA
IPC分类号： G01F1/66 , G01F1/00 , G01F3/22 , G01F15/08
摘要： PROBLEM TO BE SOLVED: To provide an ultrasonic gas meter capable of measuring accurately the flow rate of mixture gas having a density difference or gas generating easily condensation water.
SOLUTION: This ultrasonic gas meter is equipped with a measuring pipe 13 wherein a fluid which is a measuring object flows, a first ultrasonic transducer 14 arranged on one end of the measuring pipe, a second ultrasonic transducer 15 arranged oppositely to the first ultrasonic transducer on the other end of the measuring pipe, and control circuits 18, 19 for measuring the flow rate of the fluid flowing in the measuring pipe based on the difference between a propagation time measured by transmitting an ultrasonic wave from the first ultrasonic transducer to the second ultrasonic transducer and a propagation time measured by transmitting an ultrasonic wave from the second ultrasonic transducer to the first ultrasonic transducer. The measuring pipe 13 has a double structure comprising an inner pipe 30 for allowing the fluid to pass, while removing moisture included in the fluid which is the measuring object, and an outer pipe 31 provided outside the inner pipe.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够精确地测量具有密度差的混合气体的流量或容易产生冷凝水的气体的超声波气体计量器。解决方案：该超声波气量计配备有测量管13，其中测量对象的流体流动，布置在测量管的一端的第一超声换能器14，与第一超声波换能器15相对布置的第二超声换能器15 测量管另一端的超声波换能器，以及控制电路18,19，用于根据通过从第一超声波换能器发送超声波测得的传播时间与第一超声换能器之间的差异，测量流过测量管中的流体的流量所述第二超声波换能器和通过将超声波从所述第二超声波换能器发射到所述第一超声换能器而测量的传播时间。测量管13具有双重结构，其包括用于允许流体通过的内管30，同时除去包括在作为测量对象的流体中的水分以及设置在内管外部的外管31。版权所有（C）2007，JPO＆INPIT

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