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1. 发明专利

JP2004125684A Thermopile type gas densimeter, and its design method 审中-公开
公开(公告)号：JP2004125684A
公开(公告)日：2004-04-22
申请号：JP2002292049
申请日：2002-10-04
申请人： Tokyo Gas Co Ltd , Yazaki Corp , 東京瓦斯株式会社 , 矢崎総業株式会社
发明人： SETO MINORU , HARADA TOSHIHIRO , USHIJIMA KAZUHIRO , INUZUKA KAZUHIRO
IPC分类号： G01F1/68 , G01N9/00
摘要： PROBLEM TO BE SOLVED: To provide a more precise gas densimeter and a gas density measurement method, while being simple in constitution and low in price.
SOLUTION: A pocket section 21 is formed in a recessed shape on the inner wall of a gas channel 20 where gas to be measured passes, and a microflow sensor 1', having first to fourth thermopiles, is mounted into the pocket section 21. Then, the density of the gas to be measured is obtained by using at least either one of the first to fourth temperature detection signals outputted from each of the first to fourth thermopiles. Or, at least two of the first to fourth thermopiles are utilized to obtain the density of the gas to be measured. Furthermore, to prevent influence of the flow of the gas to be measured passing through the gas channel 20, the aperture of an opening 21A leading from the pocket section 21 to the gas channel is made sufficiently smaller than the volume of the pocket section 21.
COPYRIGHT: (C)2004,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

JP2005351817A Heating value calculation expression generation unit, heating value calculation device, and heating value measuring system 有权
标题翻译：加热值计算表达式生成单元，加热计算装置和加热值测量系统
公开(公告)号：JP2005351817A
公开(公告)日：2005-12-22
申请号：JP2004174524
申请日：2004-06-11
申请人： Tokyo Gas Co Ltd , Yazaki Corp , 東京瓦斯株式会社 , 矢崎総業株式会社
发明人： DOI TOSHIYUKI , SETO MINORU , OZAWA TAKASHI , SHIBATA MAKIKO
IPC分类号： G01N25/22 , G01N27/16
摘要： PROBLEM TO BE SOLVED: To provide a heating value measuring device capable of measuring the heating value of a hydrocarbon-based mixture gas accurately and inexpensively.
SOLUTION: This device comprises a driving control means 21b for the mixture gas for controlling driving of a catalytic combustion type gas sensor 10 at a mixture gas measuring temperature specified by a mixture gas measuring temperature specification means 31a16 in a heating value calculation type generation unit 300, a sensor output taking means 31a21 for taking a sensor output corresponding to the mixture gas output from the catalytic combustion type gas sensor 10 in response to the control, a heating value calculation means 31a22 for calculating the heating value, and a heating value information output means 31a23 for outputting in order to inform a user of heating value information showing the heating value calculated by the heating value calculation means 31a22. The heating value calculation means 31a22 calculates the heating value on the basis of the sensor output taken by the sensor output taking means 31a21 and a heating value calculation expression generated by a heating value calculation expression generation means 31a15 in the heating value calculation expression generation unit 300.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题：提供一种能够精确且廉价地测量烃系混合气的发热量的发热量测定装置。解决方案：该装置包括用于混合气体的驱动控制装置21b，用于控制催化燃烧型气体传感器10的驱动控制装置，该驱动控制装置以混合气体测量温度指定装置31a16以热值计算式指定的混合气体测量温度生成单元300，用于响应于控制从传感器燃烧式气体传感器10输出的混合气体进行传感器输出的传感器输出取出单元31a21，计算发热量的发热量运算单元31a22，用于输出的值信息输出装置31a23，以通知用户表示由热值计算装置31a22计算出的发热值的发热量信息。热值计算装置31a22根据由传感器输出取出装置31a21所采集的传感器输出和由发热值计算表达式生成装置31a15在发热值计算表达式生成单元300中产生的热值计算表达式计算发热值（C）2006年，JPO＆NCIPI

4. 发明专利

JP2005201647A Heating value calculation device, its method and heating value measuring system 有权
标题翻译：加热计算装置，方法和加热值测量系统
公开(公告)号：JP2005201647A
公开(公告)日：2005-07-28
申请号：JP2004005227
申请日：2004-01-13
申请人： Tokyo Gas Co Ltd , Yazaki Corp , 東京瓦斯株式会社 , 矢崎総業株式会社
发明人： SETO MINORU , DOI TOSHIYUKI , OZAWA TAKASHI , SHIBATA MAKIKO , OGINO KAORU
IPC分类号： G01K17/00 , G01N25/22 , G01N27/16
摘要： PROBLEM TO BE SOLVED: To provide a heating value calculation device capable of calculating the heating value of a gas mixture by measuring it continuously with a simple and inexpensive constitution.
SOLUTION: In this heating value calculation device, the heating value of the gas mixture comprising a plurality of kinds of gas components is calculated based on a sensor output showing a thermal balance between a detection element and a comparison element outputted from a catalytic combustion type gas sensor 10. The device is equipped with a heating value calculation information storing means 34 for storing heating value calculation information for calculating the heating value of the gas mixture based on the sensor output corresponding to the gas mixture outputted from the catalytic combustion type gas sensor 10, a heating value calculation means 31b for calculating the heating value based on the sensor output corresponding to the gas mixture taken by a sensor output taking means 31a and the heating value calculation information in the heating value calculation information storing means 34, and a heating value information output means 31c for outputting in order to inform of the heating value information showing the heating value calculated by the heating value calculation means 31b.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够以简单且便宜的结构连续测量气体混合物的热值来计算热值的热值计算装置。解决方案：在该加热值计算装置中，基于传感器输出计算出包含多种气体成分的气体混合物的发热量，该传感器输出显示检测元件和从催化剂输出的比较元件之间的热平衡燃烧式气体传感器10.该装置配备有热值计算信息存储装置34，用于存储用于根据从催化燃烧型输出的气体混合物输出的传感器输出计算气体混合物的发热值的热值计算信息气体传感器10，用于根据由传感器输出取出装置31a取得的气体混合物对应的传感器输出和发热值计算信息存储装置34中的发热量计算信息计算发热量的发热量计算装置31b，用于输出以通知h的发热值信息输出装置31c 显示由热值计算装置31b计算出的发热值的吃饭值信息。版权所有（C）2005，JPO＆NCIPI

5. 发明专利

JP2002071423A METHOD AND EQUIPMENT FOR FLOW RATE MEASUREMENT, AND ELECTRONIC GAS METER 失效
公开(公告)号：JP2002071423A
公开(公告)日：2002-03-08
申请号：JP2000236622
申请日：2000-08-04
申请人： YAZAKI CORP , TOKYO GAS CO LTD
发明人： YAMAURA MICHIAKI , NUKUI KAZUMITSU , SETO MINORU , KOBAYASHI MASATOMO
IPC分类号： G01F7/00 , G01F1/68 , G01F1/692 , G01F3/22
摘要： PROBLEM TO BE SOLVED: To provide a method and equipment for flow rate measurement and a more accurate electronic gas meter enabling more reduction of the power consumption and fluid flow rate detection and measurement conforming to fluid flow without increasing the power consumption. SOLUTION: In this system, a flow rate existence detecting means 11a-2 detects the presence of fluid flow rate in a fluid channel 17 through digital signals. When the flow rate existence detecting means 11a-2 detects no flow rate, a control means 11a-3 controls switching of measurement mode from a normal measurement mode allowing an operation means 11a-1 to execute flow rate operating action for every intermittent power supply into a rough measurement mode stopping the action of the operation means 11a-1 to omit the flow rate operating action. And, if the flow rate existence detecting means 11a-2 detects the presence of flow rate in the rough measurement mode, then the control means 11a-3 returns the mode to the normal measurement mode again.

6. 发明专利

JP2005201648A Heating value calculation device, its method and heating value measuring system 有权
标题翻译：加热计算装置，方法和加热值测量系统
公开(公告)号：JP2005201648A
公开(公告)日：2005-07-28
申请号：JP2004005228
申请日：2004-01-13
申请人： Tokyo Gas Co Ltd , Yazaki Corp , 東京瓦斯株式会社 , 矢崎総業株式会社
发明人： SETO MINORU , DOI TOSHIYUKI , OZAWA TAKASHI , SHIBATA MAKIKO
IPC分类号： G01K17/00 , G01N25/22 , G01N27/16
摘要： PROBLEM TO BE SOLVED: To provide a heating value calculation device for calculating accurately the heating value of a gas mixture. SOLUTION: This heating value calculation device 30 stores heating value calculation information for calculating the heating value of the gas mixture based on a high-temperature sensor output corresponding to the gas mixture having a desired concentration outputted from a catalytic combustion type gas sensor 10 and hydrogen concentration information showing a relation between each sensor output outputted from the catalytic combustion type gas sensor 10 heated at a high temperature and a low temperature and the hydrogen concentration, calculates the hydrogen concentration corresponding to hydrogen included in the gas mixture from the low-temperature sensor output acquired by sensing only to hydrogen, calculates from the hydrogen concentration a hydrogen sensor output in the high-temperature sensor output corresponding to the gas mixture, a gas mixture sensor output, and the gas mixture concentration of the gas mixture excluding hydrogen, and generates and outputs heating value information based on heating value information corresponding to the gas mixture concentration, the gas mixture heating value corresponding to the gas mixture sensor output, and the hydrogen heating value corresponding to the hydrogen sensor output. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于精确计算气体混合物的热值的热值计算装置。解决方案：该发热量计算装置30基于从催化燃烧式气体传感器输出的具有期望浓度的气体混合物对应的高温传感器输出，存储用于计算气体混合物的发热值的发热量计算信息 10表示从高温加热的低温催化燃烧式气体传感器10输出的各传感器输出与氢浓度之间的关系的氢浓度信息，从低浓度计算与气体混合物中所含的氢相当的氢浓度 - 通过仅感测氢气获取的温度传感器输出，从对应于气体混合物的高温传感器输出中输出的氢传感器的氢浓度，气体混合物传感器输出和除氢气之外的气体混合物的气体混合物浓度计算，并产生并输出加热值信息基于与气体混合物浓度对应的加热值信息，对应于气体混合物传感器输出的气体混合物热值，以及对应于氢传感器输出的氢气热值。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JP2004093395A Pulsation absorption structure of electronic gas meter 有权
公开(公告)号：JP2004093395A
公开(公告)日：2004-03-25
申请号：JP2002255600
申请日：2002-08-30
申请人： Tokyo Gas Co Ltd , Yazaki Corp , 東京瓦斯株式会社 , 矢崎総業株式会社
发明人： SETO MINORU , YAMAURA MICHIAKI
IPC分类号： G01F3/22 , G01F1/72 , G01F15/00
摘要： PROBLEM TO BE SOLVED: To provide a computerized gas meter wherein measurement precision is high and processing about gas flow rate measurement is reduced by reducing the influence of a pulsation. SOLUTION: A rectifier 1 containing a flow regulating plate 14 is arranged in a through conduit 53 of a computerized gas meter, and a flow rate sensor 10 is installed in the through conduit. The flow regulating plate 14 is arranged in such a manner that a section of the through conduit 53 in which the flow rate sensor 10 is installed is divided into a first layer in which the flow rate sensor 10 is installed and layers except the first layer by a prescribed ratio. In the first layer, pressure loss occurrence members 16 for pulsation absorption are arranged respectively on one end portion and the other end portion of the flow regulating plate 14. COPYRIGHT: (C)2004,JPO

8. 发明专利

JP2003240617A ABNORMALITY DETECTION METHOD AND DEVICE OF FLOW SENSOR AND FLOW SENSOR TYPE GAS METER 审中-公开
公开(公告)号：JP2003240617A
公开(公告)日：2003-08-27
申请号：JP2002037217
申请日：2002-02-14
申请人： YAZAKI CORP , TOKYO GAS CO LTD
发明人： YAMAURA MICHIAKI , HARADA TOSHIHIRO , KOBAYASHI MASATOMO , SETO MINORU , SAKAI KATSUTO
IPC分类号： G01F3/22 , G01F1/68
摘要： PROBLEM TO BE SOLVED: To provide an abnormality detection method and a device of a flow sensor capable of detecting the abnormal state of the flow sensor caused by foreign matter such as water in a gas passage, and a flow sensor type gas meter. SOLUTION: This abnormality detection device of the flow sensor comprises a determination means 26 for determining that, in the flow sensor 1 equipped with a heater 4 for heating gas and temperature sensors 5, 8, 11, 13, the foreign matter is in contact with or adheres to the temperature sensors 5, 8, 11, 13 or the heater 4 when detection outputs from the temperature sensors 5, 8, 11, 13 do not change or change less than a threshold in spite of heating by the heater 4. The device can detect the abnormal state wherein the foreign matter is in contact with or adheres to the temperature sensors or the heater. COPYRIGHT: (C)2003,JPO

9. 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

10. 发明专利

JP2002005707A FLUID FLOW MEASURING DEVICE 失效
公开(公告)号：JP2002005707A
公开(公告)日：2002-01-09
申请号：JP2000181396
申请日：2000-06-16
申请人： YAZAKI CORP , TOKYO GAS CO LTD
发明人： USHIJIMA KAZUHIRO , NUKUI KAZUMITSU , SETO MINORU , KOBAYASHI MASATOMO
IPC分类号： G01F1/684 , G01F1/00
摘要： PROBLEM TO BE SOLVED: To provide a fluid flow rate measuring device capable of obtaining desired stream lining effect by a mesh as suppressing a pressure loss. SOLUTION: In a gas meter 1 interposed halfway on a gas piping connected to a gas supply source at its upstream side and to a gas consuming source at its down stream side, the flow speed of gas is measured by using a microprocessor sensor 5 provided at the downstream side of the corner 3a of a passage 3. When finding the flow of the gas passing 3 through the passage 3 by a microcomputer 13 by multiplying it by the cross section of the passage, the stream lining effect required to uniform the flow speed distribution of the gas reaching three spots of the passage in each of which the microprocessor sensor 5 is provided can not be singly obtained between the corner 3a and the three spots of the passage where the microprocessor sensors 5 are provided. Therefore, a coarse mesh 17 and a relatively fine mesh 19 are disposed.

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