CN101059410A - 煤矿井下用抽排瓦斯管材承受负压能力的检测方法 - Google Patents
煤矿井下用抽排瓦斯管材承受负压能力的检测方法 Download PDFInfo
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- CN101059410A CN101059410A CN 200710015828 CN200710015828A CN101059410A CN 101059410 A CN101059410 A CN 101059410A CN 200710015828 CN200710015828 CN 200710015828 CN 200710015828 A CN200710015828 A CN 200710015828A CN 101059410 A CN101059410 A CN 101059410A
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- China
- Prior art keywords
- tubing
- negative pressure
- pressure
- closed container
- gas exhausting
- 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.)
- Granted
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- Examining Or Testing Airtightness (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
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Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CNB2007100158284A CN100554930C (zh) | 2007-05-30 | 2007-05-30 | 煤矿井下用抽排瓦斯管材承受负压能力的检测方法 |
Applications Claiming Priority (1)
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CNB2007100158284A CN100554930C (zh) | 2007-05-30 | 2007-05-30 | 煤矿井下用抽排瓦斯管材承受负压能力的检测方法 |
Publications (2)
Publication Number | Publication Date |
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CN101059410A true CN101059410A (zh) | 2007-10-24 |
CN100554930C CN100554930C (zh) | 2009-10-28 |
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CNB2007100158284A Expired - Fee Related CN100554930C (zh) | 2007-05-30 | 2007-05-30 | 煤矿井下用抽排瓦斯管材承受负压能力的检测方法 |
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CN (1) | CN100554930C (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103837363A (zh) * | 2014-03-18 | 2014-06-04 | 安徽理工大学 | 瓦斯动力灾害对矿井通风网络影响试验系统及方法 |
CN107305175A (zh) * | 2016-04-25 | 2017-10-31 | 株洲中车时代电气股份有限公司 | 管道容器的自动化气体压力试验装置 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3750043D1 (de) * | 1987-10-28 | 1994-07-14 | Martin Lehmann | Verfahren und Verwendung einer Anordnung zur Prüfung mindestens eines Hohlkörpers auf sein Volumenverhalten. |
CN2501073Y (zh) * | 2000-12-18 | 2002-07-17 | 王天明 | 夹持式可掀眼镜 |
CN100425968C (zh) * | 2005-08-05 | 2008-10-15 | 中国水利水电科学研究院 | 管材试压机 |
-
2007
- 2007-05-30 CN CNB2007100158284A patent/CN100554930C/zh not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103837363A (zh) * | 2014-03-18 | 2014-06-04 | 安徽理工大学 | 瓦斯动力灾害对矿井通风网络影响试验系统及方法 |
CN103837363B (zh) * | 2014-03-18 | 2016-06-15 | 安徽理工大学 | 瓦斯动力灾害对矿井通风网络影响试验系统及方法 |
CN107305175A (zh) * | 2016-04-25 | 2017-10-31 | 株洲中车时代电气股份有限公司 | 管道容器的自动化气体压力试验装置 |
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Publication number | Publication date |
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CN100554930C (zh) | 2009-10-28 |
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Legal Events
Date | Code | Title | Description |
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C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: SHANDONG WOFENG GERUI PIPE INDUSTRY CO., LTD. Assignor: Yankuang Group Zoucheng plastic products Co., Ltd.|Wang Xin Hyland Contract record no.: 2010370000346 Denomination of invention: Method for detecting negative pressure endurance capability of gas exhausting tubing for downhole of coal mine Granted publication date: 20091028 License type: Exclusive License Open date: 20071024 Record date: 20100705 |
|
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091028 Termination date: 20210530 |