CN201521489U - 煤层气排采泵冷却装置 - Google Patents
煤层气排采泵冷却装置 Download PDFInfo
- Publication number
- CN201521489U CN201521489U CN2009201673573U CN200920167357U CN201521489U CN 201521489 U CN201521489 U CN 201521489U CN 2009201673573 U CN2009201673573 U CN 2009201673573U CN 200920167357 U CN200920167357 U CN 200920167357U CN 201521489 U CN201521489 U CN 201521489U
- Authority
- CN
- China
- Prior art keywords
- pump
- impeller
- bed gas
- coal bed
- cooling
- 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 - Lifetime
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009201673573U CN201521489U (zh) | 2009-07-28 | 2009-07-28 | 煤层气排采泵冷却装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009201673573U CN201521489U (zh) | 2009-07-28 | 2009-07-28 | 煤层气排采泵冷却装置 |
Publications (1)
Publication Number | Publication Date |
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CN201521489U true CN201521489U (zh) | 2010-07-07 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2009201673573U Expired - Lifetime CN201521489U (zh) | 2009-07-28 | 2009-07-28 | 煤层气排采泵冷却装置 |
Country Status (1)
Country | Link |
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CN (1) | CN201521489U (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101956694A (zh) * | 2010-10-09 | 2011-01-26 | 中国石油大学(华东) | 防煤粉管式排采泵 |
-
2009
- 2009-07-28 CN CN2009201673573U patent/CN201521489U/zh not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101956694A (zh) * | 2010-10-09 | 2011-01-26 | 中国石油大学(华东) | 防煤粉管式排采泵 |
CN101956694B (zh) * | 2010-10-09 | 2013-04-10 | 中国石油大学(华东) | 防煤粉管式排采泵 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: CHAOTUO-YUANDA PETROLEUM SCIENCE-TECHNOLOGY CO., L Free format text: FORMER OWNER: ZHOU BAOXING Effective date: 20100901 Free format text: FORMER OWNER: JIANG DESHENG KOU MINGHU |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20100901 Address after: 100085, Room 501, building C, Ka Wah building, No. nine, 3rd Street, Haidian District, Beijing Patentee after: Beijing Supercontrol Bright Petroleum Technology Co., Ltd. Address before: 100085, Ka Wah building, No. nine, 3rd Street, Beijing, Haidian District, C-501 Co-patentee before: Jiang Desheng Patentee before: Zhou Baoxing Co-patentee before: Kou Minghu |
|
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Cooling device for coal bed gas discharging and extracting pump Effective date of registration: 20130823 Granted publication date: 20100707 Pledgee: Zhongguancun Beijing technology financing Company limited by guarantee Pledgor: Beijing Supercontrol Bright Petroleum Technology Co., Ltd. Registration number: 2013990000607 |
|
PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
CX01 | Expiry of patent term |
Granted publication date: 20100707 |
|
CX01 | Expiry of patent term | ||
DD01 | Delivery of document by public notice |
Addressee: Beijing Supercontrol Bright Petroleum Technology Co., Ltd. Document name: Notification of Expiration of Patent Right Duration |
|
DD01 | Delivery of document by public notice |