CN1233953C - 燃气保安装置及其方法 - Google Patents

燃气保安装置及其方法 Download PDF

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Publication number
CN1233953C
CN1233953C CNB031490824A CN03149082A CN1233953C CN 1233953 C CN1233953 C CN 1233953C CN B031490824 A CNB031490824 A CN B031490824A CN 03149082 A CN03149082 A CN 03149082A CN 1233953 C CN1233953 C CN 1233953C
Authority
CN
China
Prior art keywords
propagation time
combustion gas
gas
exhaust
fuel gas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNB031490824A
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English (en)
Chinese (zh)
Other versions
CN1469077A (zh
Inventor
德南敬雄
新村纪夫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of CN1469077A publication Critical patent/CN1469077A/zh
Application granted granted Critical
Publication of CN1233953C publication Critical patent/CN1233953C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F3/00—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow
    • G01F3/02—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement
    • G01F3/20—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement having flexible movable walls, e.g. diaphragms, bellows
    • G01F3/22—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement having flexible movable walls, e.g. diaphragms, bellows for gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D3/00—Arrangements for supervising or controlling working operations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02—Alarms for ensuring the safety of persons
    • G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
    • G08B21/16—Combustible gas alarms

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Measuring Volume Flow (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Emergency Alarm Devices (AREA)
CNB031490824A 2002-07-01 2003-06-26 燃气保安装置及其方法 Expired - Fee Related CN1233953C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002191911A JP2004036937A (ja) 2002-07-01 2002-07-01 ガス保安装置
JP2002191911 2002-07-01

Publications (2)

Publication Number Publication Date
CN1469077A CN1469077A (zh) 2004-01-21
CN1233953C true CN1233953C (zh) 2005-12-28

Family

ID=29996950

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB031490824A Expired - Fee Related CN1233953C (zh) 2002-07-01 2003-06-26 燃气保安装置及其方法

Country Status (3)

Country Link
JP (1) JP2004036937A (ja)
KR (1) KR20040004103A (ja)
CN (1) CN1233953C (ja)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6576857B2 (ja) * 2015-04-06 2019-09-18 東京瓦斯株式会社 ガス遮断制御装置及び制御方法
JP6951263B2 (ja) * 2018-01-15 2021-10-20 東京瓦斯株式会社 ガスメータ
JP2019220102A (ja) * 2018-06-22 2019-12-26 東京瓦斯株式会社 作業監視システム、作業監視方法
JP7340347B2 (ja) * 2019-04-12 2023-09-07 矢崎エナジーシステム株式会社 パージ検知装置
CN114593370A (zh) * 2020-12-04 2022-06-07 中国石油化工股份有限公司 天然气脱氮溶剂吸收管道失效的预警方法及相应系统

Also Published As

Publication number Publication date
CN1469077A (zh) 2004-01-21
JP2004036937A (ja) 2004-02-05
KR20040004103A (ko) 2004-01-13

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20051228

Termination date: 20140626

EXPY Termination of patent right or utility model