专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2003270021A STRAIGHTENER 审中-公开
公开(公告)号：JP2003270021A
公开(公告)日：2003-09-25
申请号：JP2002068564
申请日：2002-03-13
申请人： TOKYO GAS CO LTD , YAZAKI CORP
发明人： NUKUI KAZUMITSU , SETO MINORU , TASHIRO TAKESHI , KOMAKI MICHINORI , KOBAYASHI MASATOMO , USHIJIMA KAZUHIRO
IPC分类号： G01F1/00 , F15D1/02 , G01F3/22 , G01F15/00
摘要： PROBLEM TO BE SOLVED: To provide a straightener, whose measurement accuracy is high and which reduces the processing operation regarding a flow measurement is spite of being of a small size and to provide a gas meter. SOLUTION: A first mesh 15A and a second mesh 15B are arranged so as to sandwich straightening plates 14 on the way of a flow channel 53 in which a flow rate sensor 10 is arranged, and a third mesh 15C is arranged by keeping a prescribed interval on the upstream side from the first mesh 15A. The lengths of the straightening plate 14 before and after the flow rate sensor 10 are made mutually identical along the flow direction. COPYRIGHT: (C)2003,JPO

2. 发明专利

JP2003240619A FLOW MEASURING METHOD AND FLOW MEASURING DEVICE 审中-公开
公开(公告)号：JP2003240619A
公开(公告)日：2003-08-27
申请号：JP2002037442
申请日：2002-02-14
申请人： YAZAKI CORP , TOKYO GAS CO LTD
发明人： YAMAURA MICHIAKI , HARADA TOSHIHIRO , KONNO YOSHITO , KOBAYASHI MASATOMO , SAKAI KATSUTO , SETO MINORU , TASHIRO TAKESHI
IPC分类号： G01P5/10 , G01F1/696
摘要： PROBLEM TO BE SOLVED: To provide a flow measuring method capable of measuring a flow rate accurately even when a physical property value of fluid flowing in a passage is changed, and a flow measuring device performing the flow measuring method. SOLUTION: A flow operation means operates the flow rate based on a gas temperature or a sensor output which is a value based on the gas temperature acquired after elapse of a measuring time from start of heating by a heat source or cooling. The measuring time is determined in the range longer than the shortest time and shorter than the longest time among cross times TFG, TFH, TFI, TGH, TGI, THI corresponding to a plurality of cross points PFG, PFH, PFI, PGH, PGI, PHI. COPYRIGHT: (C)2003,JPO

3. 发明专利

JP2003177037A GAS FLOWMETER, GAS SUPPLY SYSTEM, AND GAS SUBSTITUTION METHOD 审中-公开
公开(公告)号：JP2003177037A
公开(公告)日：2003-06-27
申请号：JP2001389495
申请日：2001-12-21
申请人： YAZAKI CORP , TOKYO GAS CO LTD
发明人： ODA KIYOSHI , ANZAI MITSUYOSHI , KIMURA OSAMU , NUKUI KAZUMITSU , KOMAKI MICHINORI , SAKAI KATSUTO , SETO MINORU , TASHIRO TAKESHI , KOBAYASHI MASATOMO
IPC分类号： G01F1/00 , F17D1/04 , F17D3/18 , F17D5/00 , G01F1/692 , G01F3/22 , G01F15/04
摘要： PROBLEM TO BE SOLVED: To provide a gas flowmeter which favorably performs calculation and display of a precise flow of a gas in accordance with its kind, computation of its charge, abnormality judgment of the species of the gas, etc., and to provide a gas supply system and a gas substitution method using this flowmeter. SOLUTION: The gas flowmeter 1 using a sensor 14 for detecting the mass flow of a gas, is provided with a calculation means 42 which calculates the mass flow of the gas on the basis of a detection signal detected by the sensor 14, a flow reduction means 45 which specifies a standard temperature, a standard absolute pressure and a standard composition of the gas to be measured and considers the state as a standard state, and reduces the mass flow of the gas calculated by the calculation means 42 into a standard volume flow in the standard state, and a display means 51 for displaying the standard volume flow reduced by the reduction means 45. COPYRIGHT: (C)2003,JPO

4. 发明专利

JP2006322867A VESSEL INSPECTION METHOD AND ITS DEVICE 审中-公开
公开(公告)号：JP2006322867A
公开(公告)日：2006-11-30
申请号：JP2005147608
申请日：2005-05-20
申请人： TOKYO GAS CO LTD , TOYO KEIKI CO LTD , AIM TECH KK
发明人： SAITO TAKESHI , TASHIRO TAKESHI , TSUCHIDA YASUHIDE , UEHARA MOTOHIKO , ARIMA SHINICHIRO , ETO HIDETOSHI
IPC分类号： G01M3/26
摘要： PROBLEM TO BE SOLVED: To provide a vessel inspection method and its device executed during a period when temperature in a vessel is exponentially lowering like a period after repairing a pipeline by an airflow lining construction method, etc., and to enhance the efficiency of repair work and of inspection work after repair. SOLUTION: Since the inside and outside temperatures of the vessel are different and a leak from the vessel is inspected by means of a pressure higher than a pressure outside the vessel, the pressure in the inspected vessel is increased or decreased at a pressure higher than the pressure outside the vessel. A pressure difference X i between the vessel outside and the vessel inside at at least three different time points t i (i=1, 2, and 3) and the rate Y i of change in temperature with time of the pressure in the vessel are measured. The pressure difference X i and the rate Y i of change measured in this pressure state measurement process are applied to the following expressions to calculate a leak constant L related to leak: Y 1 +aY 2 +bY 3 =-L(X 1 +aX 2 +bX 3 ), where, a=γ/(1-γ), b=1/(γ-1), t 3 -t 1 =γ(t 2 -t 1 ). A leak from the inspected vessel is detected based on the leak constant L. COPYRIGHT: (C)2007,JPO&INPIT

5. 发明专利

JP2004093175A Thermal type flowmeter 有权
标题翻译：热式流量计
公开(公告)号：JP2004093175A
公开(公告)日：2004-03-25
申请号：JP2002251045
申请日：2002-08-29
申请人： Takenaka Seisakusho Co Ltd , Tokyo Gas Co Ltd , Yamatake Corp , 東京瓦斯株式会社 , 株式会社山武 , 株式会社竹中製作所
发明人： NUKUI KAZUMITSU , KOMAKI MICHINORI , TASHIRO TAKESHI , OSHIMA HIDEKAZU , ISHITANI SATOSHI , MURAOKA MANABU , SEO MASAMI
IPC分类号： G01F7/00 , G01F1/68
摘要： PROBLEM TO BE SOLVED: To provide a thermal type flowmeter enhanced in operating reliability by avoiding a flow measurement disabled situation even at the occurrence of a failure of a low-speed flow sensor.
SOLUTION: This thermal type flowmeter is provided with a plurality of low-speed flow sensors for measuring a low flow region and a plurality of high speed flow sensors for measuring a high flow region built in a prescribed passage, and a flow measuring means for measuring the flow while selectively using either the low-speed flow sensors or the high-speed flow sensors according to the flow of a fluid flowing through the passage. The thermal type flowmeter is further provided with a failure detecting means for detecting the failure of the low-speed flow sensors, and a measurement control means for carrying out flow measurement using the high-speed flow sensors regardless of the flow when detecting the failure of all the low-speed flow sensors by the failure detecting means.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：即使在低速流量传感器发生故障的情况下，通过避免流量测量禁用的情况来提供增强的操作可靠性的热式流量计。
解决方案：该热式流量计设有多个用于测量低流动区域的低速流量传感器和用于测量内置在规定通道中的高流量区域的多个高速流量传感器，以及流量测量用于根据流经通道的流体的流动选择性地使用低速流量传感器或高速流量传感器来测量流量的装置。热式流量计还设置有用于检测低速流量传感器的故障的故障检测装置，以及测量控制装置，用于当检测到故障时使用高速流量传感器进行流量测量所有的低速流量传感器都由故障检测装置。版权所有（C）2004，JPO

6. 发明专利

JP2004093173A Integrating flowmeter 有权
公开(公告)号：JP2004093173A
公开(公告)日：2004-03-25
申请号：JP2002251043
申请日：2002-08-29
申请人： Takenaka Seisakusho Co Ltd , Tokyo Gas Co Ltd , Yamatake Corp , 東京瓦斯株式会社 , 株式会社山武 , 株式会社竹中製作所
发明人： SETO MINORU , KOMAKI MICHINORI , TASHIRO TAKESHI , OSHIMA HIDEKAZU , ISHITANI SATOSHI , MURAOKA MANABU , SEO MASAMI
IPC分类号： G01F3/22 , G01F1/696 , G01F15/075
摘要： PROBLEM TO BE SOLVED: To provide an integrating flowmeter which can obtain accurately integrated flow rate of fluid passing a specified channel, without depending on the presence and absence of a pulsation state. SOLUTION: The integrating flowmeter is provided with a thermal flow rate sensor for measuring an instantaneous flow rate of the fluid passing the specified channel, a flow rate measure which integrates the instantaneous flow rate measured by the sensor, outputs a unit flow rate signal when the integrated value reaches a prescribed unit flow rate, and resets the integrated value, and a flow rate integrating means which counts the unit flow rate signal output from the integrating means, and obtains an integrated flow rate of the fluid passing the specified channel. A resetting means is installed which resets compulsorily an integrated value especially when the integrated value in the flow rate measure in a prescribed period does not reach the prescribed unit flow rate. COPYRIGHT: (C)2004,JPO

7. 发明专利

JP2004093170A Flow straightener 审中-公开
公开(公告)号：JP2004093170A
公开(公告)日：2004-03-25
申请号：JP2002251040
申请日：2002-08-29
申请人： Takenaka Seisakusho Co Ltd , Tokyo Gas Co Ltd , Yamatake Corp , 東京瓦斯株式会社 , 株式会社山武 , 株式会社竹中製作所
发明人： NUKUI KAZUMITSU , KOMAKI MICHINORI , TASHIRO TAKESHI , OSHIMA HIDEKAZU , ISHITANI SATOSHI , YAO TAKESHI , TAMURA HIROSHI
IPC分类号： G01F1/00 , F15D1/02 , G01F15/12 , G01P5/00
CPC分类号： G01F15/00 , F15D1/025
摘要： PROBLEM TO BE SOLVED: To provide a flow straightener capable of securing stable accuracy by preventing plugging of a flow straightening element even if using a detecting part of a flow meter in environment of much dust.
SOLUTION: This flow straightener 4 comprises a plurality of wire mesh 6-8 of different mesh gauge installed at spaces upstream of a flow velocity sensor 3 of the flow meter to straighten fluid flow. The wire mesh 8 of the smallest mesh gauge is disposed most upstream of the flow velocity sensor 3, and the wire mesh 7, 6 of larger mesh gauge are arranged in sequence downstream of the wire mesh 8.
COPYRIGHT: (C)2004,JPO

8. 发明专利

JP2002122456A GAS METER 失效
公开(公告)号：JP2002122456A
公开(公告)日：2002-04-26
申请号：JP2000312560
申请日：2000-10-12
申请人： TOKYO GAS CO LTD , TOSHIBA CORP
发明人： NUKUI KAZUMITSU , SUZUKI MAMORU , KOMAKI MICHINORI , TASHIRO TAKESHI , ISHINO HITOAKI , KON KAZUO , UYAMA HIROTO , MAEDA IKUO , MORINAGA TAKESHI
IPC分类号： G01F3/22 , G01F1/00
摘要： PROBLEM TO BE SOLVED: To provide a gas meter never performing an erroneous determination that a flow rate is present during interruption in the generation of a pulsation in a perfectly stopped state of the gas supply by the operation of a shut-off valve. SOLUTION: When the pulsation is generated in a perfectly stopped state of gas supply by the interrupting operation of the shut-off valve 10e, since the integrated value 10g of the momentary flow rate 10f of the gas by pulsation is 0 by positive and negative cancellation, it can be precisely determined whether the supply of gas is perfectly stopped or not even in the pulsation by the determination based on the integrated value of the momentary flow rate of gas. In this gas meter 10, a control part 10a restarts the shut-off valve 10e when the momentary flow rate integrated value 10g outputted by a momentary flow rate integration part 10b exceeds a prescribed value during the interruption by the shut-off valve after the shut-off valve 10e performs the interrupting operation once.

9. 发明专利

JP2002098567A ABNORMALITY DETECTION METHOD FOR GAS METER AND GAS SUPPLY 失效
公开(公告)号：JP2002098567A
公开(公告)日：2002-04-05
申请号：JP2000287287
申请日：2000-09-21
申请人： TOKYO GAS CO LTD , TOSHIBA CORP
发明人： NUKUI KAZUMITSU , KOMAKI MICHINORI , TASHIRO TAKESHI , KON KAZUO , UYAMA HIROTO , ISHINO HITOAKI
IPC分类号： G01F3/22 , G01F1/00
摘要： PROBLEM TO BE SOLVED: To provide an abnormality detection method for a gas meter and gas supply enabling enhancement of reliability in decisions related to warning operation. SOLUTION: CPU 12 checks that the absolute value of a difference in a flow rate ΔQS is equivalent to or more than that of reference flow rate QSK (|ΔQS|>=QSK) and then sequentially detects 'first decision shift state' where decision for gas G consumption state shifts from 'no flow rate change' to 'flow rate changed', and next 'second decision shift state' where it shifts from 'flow rate changed' to 'no flow rate change'. At this time, CPU 12 determines that a gas utensil 1 has operated when the difference in flow rate ΔQS varied within forward area during 'first decision shift state'-'flow rate changes'. Thus any operation of gas utensils can precisely be recognized at any time, so reliability in decision regarding warning action performance will be enhanced.

10. 发明专利

JP2002094679A METER DEVICE 失效
公开(公告)号：JP2002094679A
公开(公告)日：2002-03-29
申请号：JP2000276513
申请日：2000-09-12
申请人： TOKYO GAS CO LTD , TOSHIBA CORP
发明人： NUKUI KAZUMITSU , SUZUKI MAMORU , KOMAKI MICHINORI , TASHIRO TAKESHI , UYAMA HIROTO , KON KAZUO , ISHINO HITOAKI , MAEDA IKUO , MORINAGA TAKESHI
IPC分类号： G08C19/18 , H04M11/00 , H04Q9/00
摘要： PROBLEM TO BE SOLVED: To provide a meter device capable of communicating at a plurality of signaling speeds, utilizing a wireless or wired communication circuit, without burdening a communication party with addition of a pulse generator or mark signal length changer circuit. SOLUTION: Asynchronous serial communication transmitter-receiver circuits 11-1n adapted to different signaling speeds are provided in parallel to outputs from an interface circuit 1.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式