CN203929517U - Gravity type pipe negative pressure pick-up unit - Google Patents
Gravity type pipe negative pressure pick-up unit Download PDFInfo
- Publication number
- CN203929517U CN203929517U CN201420210872.6U CN201420210872U CN203929517U CN 203929517 U CN203929517 U CN 203929517U CN 201420210872 U CN201420210872 U CN 201420210872U CN 203929517 U CN203929517 U CN 203929517U
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- CN
- China
- Prior art keywords
- negative pressure
- pipeline
- tested pipeline
- unit
- type pipe
- 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
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Abstract
The utility model relates to a kind of gravity type pipe negative pressure pick-up unit.It is comprised of cistern, admission valve, make-up pump, outlet valve, tensimeter, flange, tested pipeline and stop valve, is linked in sequence, and forms closed circuit by pipeline.By termination of pumping, make fluid in vertical tested pipeline produce negative pressure of vacuum under Action of Gravity Field, thereby detect the resistance to negative pressure ability of tested pipeline.This device utilizes gravity to produce negative pressure, simple in structure, easy for installation.
Description
Technical field
The utility model relates to a kind of device that detects pipe negative pressure, and application of weight is used for that pipeline is produced to negative pressure and is also detected the resistance to negative pressure performance of pipeline, belongs to pipeline and carries experimental facilities technical field.
Background technology
If pipeline conveying engineering particularly occurs unexpected termination of pumping accident in long-distance transportation through pipeline engineering, in pipeline, will there will be water hammer.Water hammer not only damages the equipment being contained in piping, can also make pipe destroy because of the too high pressure in inside, or because internal pressure shrivels lower than atmospheric pressure, produce negative pressure.Negative pressure is huge to the destruction of piping system, once piping system is destroyed by affecting the normal safe operation of pipeline, manufacturing enterprise is caused to loss difficult to the appraisal.
Summary of the invention
Can detect in advance the bearing capacity of pipeline under negative pressure state, avoid because of negative pressure, making in operational process pipeline to produce and destroy, the utility model provides a kind of pipe negative pressure pick-up unit, this device utilizes gravity to produce negative pressure, simple in structure, easy for installation, detect effect more accurate.
Utility model solves the technical scheme that its technical matters adopts: gravity type pipe negative pressure pick-up unit is comprised of cistern, admission valve, make-up pump, outlet valve, tensimeter, flange, tested pipeline and stop valve.Cistern provides water source, make-up pump is delivered to tested pipeline by imported valve and pipeline by the water in cistern, tested pipeline at right angle setting is in a high position, peak is provided with tensimeter and is used for vacuum tightness in detector tube, current can flow back to cistern again by pipeline, thereby reach the effect recycling.Termination of pumping immediately after device is stable, the water in tested pipeline can continue descendingly due to Action of Gravity Field, and high some pipe interior produces negative pressure of vacuum, thereby is able to detect the object of the resistance to negative pressure of pipeline.
The beneficial effect of utility model is, only utilizes fluid gravity principle can produce negative pressure, do not need the complex apparatus such as vacuum pump, and tested pipeline can be changed by flange, simple in structure, easy for installation, can effectively to the resistance to negative pressure performance of tested pipeline, detect.
Accompanying drawing explanation
Face further illustrates the utility model in conjunction with the accompanying drawings and embodiments.
1. cistern in Fig. 1,2. admission valve, 3. make-up pump, 4. outlet valve, 5. tensimeter, 6. upper flange, 7. tested pipeline, 8. lower flange, 9. stop valve.
Embodiment
In Fig. 1, cistern (1), admission valve (2), make-up pump (3) are connected by pipeline with outlet valve (4), upper flange (6) is detachable with lower flange (8), and for connecting tested pipeline (7), tensimeter (5) is installed on peak pipeline.
Before detecting, guarantee there are enough water yields in cistern (1), first open admission valve (2), then start make-up pump (3) and outlet valve (4), after whole device is stable, close down make-up pump (3), tensimeter (5) is carried out to reading, then observe tested pipeline (7) outward appearance, see if there is by negative pressure breakoff phenomenon.
Claims (1)
1. a gravity type pipe negative pressure pick-up unit, it is comprised of cistern, admission valve, make-up pump, outlet valve, tensimeter, flange, tested pipeline and stop valve, by pipeline, is linked in sequence, and it is characterized in that: the upper and lower joint flange of tested pipeline, at right angle setting, can dismantle; Tested pipeline top peak is provided with tensimeter in order to vacuum tightness in detector tube; By termination of pumping, make the fluid of tested pipeline inside produce negative pressure of vacuum under Action of Gravity Field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420210872.6U CN203929517U (en) | 2014-04-29 | 2014-04-29 | Gravity type pipe negative pressure pick-up unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420210872.6U CN203929517U (en) | 2014-04-29 | 2014-04-29 | Gravity type pipe negative pressure pick-up unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203929517U true CN203929517U (en) | 2014-11-05 |
Family
ID=51825317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420210872.6U Expired - Fee Related CN203929517U (en) | 2014-04-29 | 2014-04-29 | Gravity type pipe negative pressure pick-up unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203929517U (en) |
-
2014
- 2014-04-29 CN CN201420210872.6U patent/CN203929517U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151019 Address after: 430064 Hubei Province, Wuhan city Wuchang District Wuluo Road No. 442 Patentee after: Wuhan Design and Research Institute Co., Ltd. pf China Coal Technology & Engineering Group Patentee after: SHAANXI SHENWEI COAL PIPELINE TRANSPORTATION OF GOD CO., LTD. Address before: 430064 Hubei Province, Wuhan city Wuchang District Wuluo Road No. 442 Patentee before: Wuhan Design and Research Institute Co., Ltd. pf China Coal Technology & Engineering Group |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20170429 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |