CN201310743Y - Underground-liquefied petroleum gas storage tank filling system - Google Patents
Underground-liquefied petroleum gas storage tank filling system Download PDFInfo
- Publication number
- CN201310743Y CN201310743Y CNU2008202309556U CN200820230955U CN201310743Y CN 201310743 Y CN201310743 Y CN 201310743Y CN U2008202309556 U CNU2008202309556 U CN U2008202309556U CN 200820230955 U CN200820230955 U CN 200820230955U CN 201310743 Y CN201310743 Y CN 201310743Y
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- CN
- China
- Prior art keywords
- storage tank
- inlet pipe
- liquid inlet
- petroleum gas
- liquefied petroleum
- 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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- Structures Of Non-Positive Displacement Pumps (AREA)
- Reciprocating Pumps (AREA)
Abstract
The utility model discloses an underground-liquefied petroleum gas storage tank filling system, comprising an underground storage tank and a transfer pump, and is characterized in that a liquid inlet of the transfer pump is communicated with a liquid inlet pipe which is seal-communicated with the storage tank, an opening on the bottom end of the liquid inlet pipe is arranged on the bottom of the storage tank, a liquid outlet of the transfer pump is communicated with a liquid outlet pipe, an air inlet pipe is further communicated on the storage tank, the opening on the bottom end of the air inlet pipe is arranged on the top of the storage tank, the transfer pump is a volume type slide vane pump, and the bottom end of the liquid inlet pipe is communicated with a clack valve. The bottom end of the liquid inlet pipe is communicated with the clack valve, which enables the dielectrics in the liquid inlet pipe, thereby effectively overcoming the cavitation of the liquid inlet pipe and leading the underground-liquefied petroleum gas storage tank filling system to be capable of adopting the volume type slide vane pump, the cost of purchasing pumps is lowered by 80%, and the maintenance services are simple.
Description
Technical field
The utility model relates to a kind of buried liquefied petroleum gas storage tank charging system.
Background technique
Liquefied petroleum gas (LPG) is easy to gasification, causes the proper functioning that cavitates and then influence liquefied petroleum gas pump easily, the low easier pipeline cavitation erosion that causes in buried liquefied petroleum gas tank position.Because the anti-cavitation erosion poor ability of capacity type vane pump, thus in buried liquefied petroleum gas storage tank system, generally do not adopt capacity type vane pump, but adopt anti-cavitation erosion ability screw pump etc. preferably.But the price of screw pump is higher, and maintenance and maintenance difficulty are bigger.If capacity type vane pump can be used in buried liquefied petroleum gas storage tank process system, the price that makes pump is reduced about 80%, and to safeguard simply, maintenance is easily.If but system produces cavitation erosion, capacity type vane pump can't proper functioning.
The model utility content
Technical problem to be solved in the utility model provides a kind of buried liquefied petroleum gas storage tank charging system that adopts capacity type vane pump, and this charging system can effectively prevent cavitation phenomenon in when work.
For solving the problems of the technologies described above, buried liquefied petroleum gas storage tank charging system of the present utility model comprises buried storage tank and transfer pump, and the transfer pump liquid entering hole is connected with liquid inlet pipe, the sealing of liquid inlet pipe and storage tank be communicated with and its bottom end opening in tank bottom; The connection of transfer pump liquid outlet is provided with drain pipe, also is communicated with on the storage tank to be provided with suction tude, and the suction tude bottom end opening is in tank top, and described transfer pump is a capacity type vane pump, and the connection of described liquid inlet pipe bottom is provided with safety check.
As a kind of improvement of the present utility model, described safety check is for adopting the Vertical Lift Check Valves of lightweight spool.
As further improvement of the utility model, connection is provided with reflux valve between described drain pipe and the suction tude.
The utlity model has following advantage:
1. transfer pump is a capacity type vane pump, the connection of described liquid inlet pipe bottom is provided with safety check, this just makes the medium in the liquid inlet pipe be difficult for gasification, thereby effectively overcome the cavitation erosion of liquid inlet pipe, make buried liquefied petroleum gas storage tank charging system can adopt capacity type vane pump, thus make the buying pump cost reduce about 80% and maintenance, repair simple.
2. safety check can effectively reduce the flow resistance of liquefied petroleum gas (LPG) in the pipeline for adopting the Vertical Lift Check Valves of lightweight spool.
3. connection is provided with reflux valve between drain pipe and the suction tude, and the gas phase media that produces because of variation of ambient temperature is back among the storage tank, makes drain pipe send pure liquid medium, effectively overcomes the cavitation erosion of drain pipe.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
As shown in Figure 1, buried liquefied petroleum gas storage tank charging system of the present utility model comprises buried storage tank 1 and capacity type vane pump 2, the liquid entering hole of capacity type vane pump 2 is connected with liquid inlet pipe 3,1 sealing of liquid inlet pipe 3 and storage tank be communicated with and its bottom end opening in the bottom of storage tank 1; The liquid outlet of capacity type vane pump 2 is communicated with and is provided with drain pipe 4, and drain pipe 4 is connected with external aerating equipment 8.On the storage tank 1 also sealing be communicated with and be provided with suction tude 5, suction tude 5 upper ends are connected with external aerating equipment 8.Between drain pipe 4 and suction tude 5, also be communicated with and be provided with reflux valve 6.Suction tude 5 bottom end openings are at the top of storage tank 1, and the connection of liquid inlet pipe 3 bottoms is provided with safety check 7, and safety check 7 can be the Vertical Lift Check Valves that adopts the lightweight spool, also can be the safety check of other type.
During work, start capacity type vane pump 2, the liquefied petroleum gas (LPG) in the storage tank 1 enters capacity type vane pump 2 through safety check 7 and liquid inlet pipe 3 successively, enters aerating equipment for use by drain pipe 4 again after the pressurization.Liquefied petroleum gas (LPG) is by extracting out in the storage tank 1, and the gaseous medium in the aerating equipment 8 enters storage tank 1 by suction tude 5.Owing to be provided with safety check 7, the liquefied petroleum gas (LPG) in the liquid inlet pipe 3 is difficult for gasification, and this has just been avoided producing in the liquid inlet pipe 3 cavitation phenomenon.The setting of reflux valve 6 makes the gas phase petroleum gas that produces because of variation of ambient temperature in the drain pipe 4 to be back in the storage tank 1 by reflux valve 6, thereby guarantees normal operation of the present utility model.
Certainly; the utility model includes but not limited to present embodiment; can be various aerating equipment as aerating equipment 8, capacity type vane pump 2, storage tank 1, safety check 7 and reflux valve 6 etc. also can be selected different models as required for use, and this type of conversion all drops within the protection domain of the present utility model.
Claims (3)
1. buried liquefied petroleum gas storage tank charging system comprises buried storage tank and transfer pump, and the transfer pump liquid entering hole is connected with liquid inlet pipe, the sealing of liquid inlet pipe and storage tank be communicated with and its bottom end opening in tank bottom; The connection of transfer pump liquid outlet is provided with drain pipe, also is communicated with on the storage tank to be provided with suction tude, and the suction tude bottom end opening is characterized in that in tank top: described transfer pump is a capacity type vane pump, and the connection of described liquid inlet pipe bottom is provided with safety check.
2. buried liquefied petroleum gas storage tank charging system according to claim 1 is characterized in that: described safety check is for adopting the Vertical Lift Check Valves of lightweight spool.
3. buried liquefied petroleum gas storage tank charging system according to claim 1 and 2 is characterized in that: connection is provided with reflux valve between described drain pipe and the suction tude.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202309556U CN201310743Y (en) | 2008-12-18 | 2008-12-18 | Underground-liquefied petroleum gas storage tank filling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202309556U CN201310743Y (en) | 2008-12-18 | 2008-12-18 | Underground-liquefied petroleum gas storage tank filling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201310743Y true CN201310743Y (en) | 2009-09-16 |
Family
ID=41107995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202309556U Expired - Fee Related CN201310743Y (en) | 2008-12-18 | 2008-12-18 | Underground-liquefied petroleum gas storage tank filling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201310743Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102826498A (en) * | 2012-07-25 | 2012-12-19 | 江苏永钢集团有限公司 | Filling device for liquid tank car |
| CN113895676A (en) * | 2021-08-10 | 2022-01-07 | 成都汇平能源科技有限公司 | Totally-enclosed liquid feeding device and method thereof |
-
2008
- 2008-12-18 CN CNU2008202309556U patent/CN201310743Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102826498A (en) * | 2012-07-25 | 2012-12-19 | 江苏永钢集团有限公司 | Filling device for liquid tank car |
| CN113895676A (en) * | 2021-08-10 | 2022-01-07 | 成都汇平能源科技有限公司 | Totally-enclosed liquid feeding device and method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090916 Termination date: 20111218 |