CN204002649U - Oil well sand washover device piston aspirator - Google Patents
Oil well sand washover device piston aspirator Download PDFInfo
- Publication number
- CN204002649U CN204002649U CN201420374233.3U CN201420374233U CN204002649U CN 204002649 U CN204002649 U CN 204002649U CN 201420374233 U CN201420374233 U CN 201420374233U CN 204002649 U CN204002649 U CN 204002649U
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- CN
- China
- Prior art keywords
- piston
- cavity
- pull bar
- oil well
- hole
- 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 discloses a kind of oil well sand washover device piston aspirator, comprise outer tube (1), pull bar (2), pull bar (2) is provided with righting joint (14), also comprise pump barrel (3), outer tube (1), is separated with piston cavity (7) between between the centre bore of piston body (9) and the face of cylinder of pull bar (2).Concentric tube mechanism comprises the first cavity (4), the second cavity (5), and the first cavity (4) is connected with the second cavity (5) by pump barrel ancient piece of jade, round, flat and with a hole in its centre hole (6), and the second cavity (5) is connected with piston cavity (7).Also comprise rubber cylinder pressing cap (8), be provided with packing element (10), the rod head (12) of spacer ring (11), rod head (12) is provided with joint through hole (13), the body of rod surface that is positioned at the pull bar (2) between righting joint (14) and piston apparatus is provided with valve vice mechanism, valve vice mechanism comprises the valve ball (15) sliding along pull bar (2) body of rod, be fixedly connected with the valve seat (16) of piston body (9), beneficial effect, is applicable to low liquid level operation, easy to operate, reliability and durability.
Description
Technical field
The utility model relates to oil machinery, is specifically related to a kind of piston aspirator of oil well sand washover device.
Background technology
Oil field, shale gas and coal bed gas project occur that the well head of sand setting is a lot, and having quite a few is in low liquid level state.If drag for sand at low liquid level, just must ensure the secondary normal operation of sand cleaning device piston friction to water filling in oil well, give like this and drag for abrasive band and carry out operation and make troubles, and oil reservoir is produced to pollution.In coal-bed gas exploitation process, avoid water filling, clean-out service as far as possible.
In existing technology, it is sediment outflow that piston presses down process, is above pulled through journey for taking out sand.Adopt longer pipeline for dark liquid level, weight is large, because the stiction of piston and tube wall is far smaller than the gravity of device itself, therefore operation feasible.But for low liquid level take out sand time adopt shorter pipeline, lightweight, because silt stops up the gravity that causes the stiction of piston and tube wall to be greater than device itself, therefore, in the process of taking out sand, can put forward on the whole by driving device use inconvenience.
Therefore be necessary the practical problem for low liquid level sand removal, this instrument is carried out to suction structure improvement.
Summary of the invention
The deficiency of the comprehensive background technology of the utility model provides a kind of oil well sand washover device piston aspirator, and this device is applicable to low liquid level operation.
The utility model provides following technical proposals: oil well sand washover device piston aspirator, comprise that outer tube, one end are provided with the pull bar of piston mechanism, described pull bar is provided with righting joint, its unique distinction is, described oil well sand washover device piston aspirator also comprises pump barrel, the fixing concentric tube mechanism that forms of described outer tube, described pump barrel and union, described piston mechanism comprises piston body, is separated with piston cavity between between the centre bore of described piston body and the face of cylinder of described pull bar.
Be that described concentric tube mechanism comprises the first cavity, the second cavity on this basis, described the first cavity is connected with described the second cavity by pump barrel ancient piece of jade, round, flat and with a hole in its centre hole, and described the second cavity is connected with described piston cavity.
Be that described piston mechanism also comprises rubber cylinder pressing cap, is provided with packing element, the rod head of spacer ring on this basis, described rubber cylinder pressing cap is fixedly connected with described pull bar by described rod head; Described packing element is fixedly connected with described piston body by described rubber cylinder pressing cap; Described rod head is provided with joint through hole, and described joint through hole is connected with described piston cavity.The first cavity, the second cavity, piston cavity form the loop of a sealing, and discarded object is finally because the through hole that the external world communicates is discharged.
The body of rod surface that is on this basis the described pull bar between described righting joint and described piston apparatus is provided with valve vice mechanism, and described valve vice mechanism comprises the valve ball sliding along the described pull bar body of rod, is fixedly connected with the valve seat of described piston body.
The beneficial effects of the utility model are: on piston, being pulled through journey is sediment outflow, piston presses down process for taking out sand, this process and usual operating process are contrary, and the active force of taking out sand is greater than the active force of sediment outflow, adopt like this and press down the mode of taking out sand and avoided device to carry on the whole, therefore this device is applicable to low liquid level operation, easy to operate, reliability and durability.
Brief description of the drawings
Accompanying drawing 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the utility model is further described.
In accompanying drawing 1: outer tube 1, pull bar 2, pump barrel 3, the first cavity 4, the second cavity 5, pump barrel ancient piece of jade, round, flat and with a hole in its centre hole 6, piston cavity 7, rubber cylinder pressing cap 8, piston body 9, packing element 10, spacer ring 11, rod head 12, joint through hole 13, righting joint 14, valve ball 15, valve seat 16.
Oil well sand washover device piston aspirator comprises that outer tube 1, one end are provided with the pull bar 2 of piston mechanism, described pull bar 2 is provided with righting joint 14, pump barrel 3, described outer tube 1, described pump barrel 3 and the fixing concentric tube mechanism that forms of union, described piston mechanism comprises piston body 9, is separated with piston cavity 7 between between the centre bore of described piston body 9 and the face of cylinder of described pull bar 2.
Described concentric tube mechanism comprises the first cavity 4, the second cavity 5, and described the first cavity 4 is connected with described the second cavity 5 by pump barrel ancient piece of jade, round, flat and with a hole in its centre hole 6, and described the second cavity 5 is connected with described piston cavity 7.
Described piston mechanism is provided with rubber cylinder pressing cap 8, is provided with the packing element 10 of spacer ring 11, rod head 12, and described rubber cylinder pressing cap 8 is fixedly connected with described pull bar 2 by described rod head 12; Described packing element 10 is fixedly connected with described piston body 7 by described rubber cylinder pressing cap 8; Described rod head 12 is provided with joint through hole 13, and described joint through hole 13 is connected with described piston cavity 7.
The body of rod surface of the described pull bar 2 between described righting joint 14 and described piston apparatus is provided with valve vice mechanism, and described valve vice mechanism comprises the valve ball 15 sliding along described pull bar 2 bodies of rod, is fixedly connected with the valve seat 16 of described piston body 9.The effect of valve vice mechanism is in the time that pull bar is descending, to drive valve ball 15 to contact with described valve seat 16, continues athletic meeting and makes valve ball form negative pressure in the opposite direction of the direction of motion.Under the effect of negative pressure, can make in the middle of fluid media (medium) suction apparatus.
Claims (4)
1. oil well sand washover device piston aspirator, comprise that outer tube (1), one end are provided with the pull bar (2) of piston mechanism, described pull bar (2) is provided with righting joint (14), it is characterized in that, described oil well sand washover device piston aspirator also comprises pump barrel (3), described outer tube (1), described pump barrel (3) and the fixing concentric tube mechanism that forms of union, described piston mechanism comprises piston body (9), is separated with piston cavity (7) between between the centre bore of described piston body (9) and the face of cylinder of described pull bar (2).
2. oil well sand washover device piston aspirator as claimed in claim 1, it is characterized in that, described concentric tube mechanism comprises the first cavity (4), the second cavity (5), described the first cavity (4) is connected with described the second cavity (5) by pump barrel ancient piece of jade, round, flat and with a hole in its centre hole (6), and described the second cavity (5) is connected with described piston cavity (7).
3. oil well sand washover device piston aspirator as claimed in claim 1, it is characterized in that, described piston mechanism also comprises rubber cylinder pressing cap (8), is provided with the packing element (10) of spacer ring (11), rod head (12), and described rubber cylinder pressing cap (8) is fixedly connected with described pull bar (2) by described rod head (12); Described packing element (10) is fixedly connected with described piston body (7) by described rubber cylinder pressing cap (8); Described rod head (12) is provided with joint through hole (13), and described joint through hole (13) is connected with described piston cavity (7).
4. oil well sand washover device piston aspirator as claimed in claim 1, it is characterized in that, the body of rod surface that is positioned at the described pull bar (2) between described righting joint (14) and described piston apparatus is provided with valve vice mechanism, described valve vice mechanism comprises the valve ball (15) sliding along described pull bar (2) body of rod, is fixedly connected with the valve seat (16) of described piston body (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420374233.3U CN204002649U (en) | 2014-07-08 | 2014-07-08 | Oil well sand washover device piston aspirator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420374233.3U CN204002649U (en) | 2014-07-08 | 2014-07-08 | Oil well sand washover device piston aspirator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204002649U true CN204002649U (en) | 2014-12-10 |
Family
ID=52042669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420374233.3U Expired - Fee Related CN204002649U (en) | 2014-07-08 | 2014-07-08 | Oil well sand washover device piston aspirator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204002649U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088596A (en) * | 2014-07-08 | 2014-10-08 | 南通格雷斯智能环保设备有限公司 | Piston suction device of oil well sand removal device |
-
2014
- 2014-07-08 CN CN201420374233.3U patent/CN204002649U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088596A (en) * | 2014-07-08 | 2014-10-08 | 南通格雷斯智能环保设备有限公司 | Piston suction device of oil well sand removal device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20150708 |
|
| EXPY | Termination of patent right or utility model |