CN204099171U - Return liquid formula anti-airlock oil pump - Google Patents
Return liquid formula anti-airlock oil pump Download PDFInfo
- Publication number
- CN204099171U CN204099171U CN201420535484.5U CN201420535484U CN204099171U CN 204099171 U CN204099171 U CN 204099171U CN 201420535484 U CN201420535484 U CN 201420535484U CN 204099171 U CN204099171 U CN 204099171U
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- CN
- China
- Prior art keywords
- pump
- piston assembly
- storage room
- liquid storage
- oil
- 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
Be return liquid formula anti-airlock oil pump disclosed in the utility model, gas lock obstacle can be automatically terminated when oil-well pump of oil well generation gas lock fault.This anti-airlock oil pump comprises piston assembly and standing valve, and upper pump barrel is connected by box cupling with lower pump barrel, in box cupling, form liquid storage room, and piston assembly is arranged on pump barrel and is connected with sucker rod with among lower pump barrel.The utility model can fast automatic eliminating oil well pump gas lock fault, and structure is simple, low cost of manufacture, can be widely used in the oil well that gas lock easily occurs because feed flow is not enough.Simultaneously due to the existence of liquid storage room, have the effect of sands-proof check of strike-ofing concurrently, there is good using effect.
Description
Technical field
The utility model relates to petroleum industry oil recovery well plunger oil-well pump, particularly returns liquid formula anti-airlock oil pump, can automatically terminate gas lock obstacle when oil-well pump of oil well generation gas lock fault.
Background technique
Deep-well plunger oil-well pump is the down-hole pumping equipment that mechanical oil recovery oil well extensively adopts.Often there is the phenomenon that interval is fuel-displaced in the oil well for fluid supply capacity deficiency, its not fuel-displaced time period periodically occurs, several hours several days at most at least not fuel-displaced time period.This phenomenon, has wasted the energy of pumping unit on the one hand, adds the risk of frozen block pipeline on the other hand during severe cold weather, and causes the fuel-displaced immediate cause of interval to be that plunger pump there occurs periodically gas lock fault.Existing anti-airlock oil pump kind is a lot, and structure is more complicated, and processing cost is higher, and practicability is not strong.Therefore simpler, that cost the is lower anti-airlock oil pump of a kind of structure is developed necessary.
Summary of the invention
The purpose of this utility model is to provide returns liquid formula anti-airlock oil pump, solves the gas lock phenomenon of oil well pump, simplifies oil pumping pump structure, reduces manufacture cost.
Technical solution of the present utility model is: return liquid formula anti-airlock oil pump and comprise piston assembly and standing valve, upper pump barrel is connected by box cupling with lower pump barrel, in box cupling, form liquid storage room, piston assembly is arranged on pump barrel and is connected with sucker rod with among lower pump barrel.
The beneficial effects of the utility model are: in order to solve the problem of oil well pump gas lock, and pump barrel is made up of upper and lower two sections of pump barrels, connects upper and lower pump barrel, define the liquid storage room of annular tubular between upper and lower pump barrel by box cupling.When there is gas lock fault, each stroke of oil well pump has a small amount of liquid to flow back in the lower pump barrel between standing valve and piston assembly by liquid storage room, and the accumulation through several strokes just makes liquid be full of clearance.Due to the incompressibility of liquid, when piston assembly is descending, pressure sharply raises and its upper and lower travelling valve is opened, and gas is able to all discharge from upper and lower pump barrel, just can remove gas lock fault in the short time.When there is not gas lock, then no liquid returns lower pump barrel, thus on pump efficiency without impact.The utility model can fast automatic eliminating oil well pump gas lock fault, and structure is simple, low cost of manufacture, can be widely used in the oil well that gas lock easily occurs because feed flow is not enough.Simultaneously due to the existence of liquid storage room, have the effect of sands-proof check of strike-ofing concurrently, there is good using effect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing in detail the utility model is described in detail, see Fig. 1, return liquid formula anti-airlock oil pump and comprise piston assembly 3 and standing valve 6, upper pump barrel 5 is connected by box cupling 1 with lower pump barrel 4, in box cupling 1, form liquid storage room 2, piston assembly 3 is arranged on pump barrel 5 and is connected with sucker rod with among lower pump barrel 4.The length being shorter in length than piston assembly 3 of liquid storage room 2.The inner circle two ends of box cupling 1 are provided with screw thread, and screw thread is not established in stage casing.Liquid storage room 2 is positioned at the middle part of whole oil well pump, and piston assembly 3 is when lower dead centre, and liquid storage room 2 can all expose above piston assembly 3; Piston assembly 3 is when upper dead center, and liquid storage room 2 can all expose in the below of piston assembly 3.
When there is gas lock fault, the below of liquid storage room 2 is walked in piston assembly 3, liquid storage room 2 is full of liquid under the effect of oil pipe fluid pressure, then when above piston assembly 3 goes upward to liquid storage room 2, the liquid in liquid storage room 2 flow in the lower pump barrel 4 between piston assembly 3 and standing valve 6.So, in the lower pump barrel 4 that each stroke of oil well pump has liquid to turn back between standing valve 6 and piston assembly 3, the accumulation through several strokes just can make liquid be full of clearance, is namely full of the space of piston assembly 3 when lower dead centre and between standing valve 6.Due to the incompressibility of liquid, when piston assembly 3 is descending, pressure raises, and the upper and lower travelling valve of piston assembly 3 is opened, and gas is all entered oil pipe, and gas lock fault is removed immediately.And when there is not gas lock, liquid storage room 2 no liquid return, thus on pump efficiency without impact.
Claims (4)
1. return liquid formula anti-airlock oil pump, comprise piston assembly and standing valve, it is characterized in that, upper pump barrel is connected by box cupling with lower pump barrel, in box cupling, form liquid storage room, and piston assembly is arranged on pump barrel and is connected with sucker rod with among lower pump barrel.
2. according to claim 1ly return liquid formula anti-airlock oil pump, it is characterized in that, the length being shorter in length than piston assembly of described liquid storage room.
3. according to claim 1ly return liquid formula anti-airlock oil pump, it is characterized in that, the inner circle two ends of described box cupling are provided with screw thread, and screw thread is not established in stage casing.
4. according to claim 1 and 2ly return liquid formula anti-airlock oil pump, it is characterized in that, described liquid storage room is positioned at the middle part of whole oil well pump, and piston assembly is when lower dead centre, and liquid storage room can all expose above piston assembly; Piston assembly is when upper dead center, and liquid storage room can all expose in the below of piston assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420535484.5U CN204099171U (en) | 2014-09-18 | 2014-09-18 | Return liquid formula anti-airlock oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420535484.5U CN204099171U (en) | 2014-09-18 | 2014-09-18 | Return liquid formula anti-airlock oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204099171U true CN204099171U (en) | 2015-01-14 |
Family
ID=52267603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420535484.5U Expired - Fee Related CN204099171U (en) | 2014-09-18 | 2014-09-18 | Return liquid formula anti-airlock oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204099171U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110485970A (en) * | 2019-09-18 | 2019-11-22 | 东北石油大学 | A kind of exhaust sand control installation for oil well pump |
-
2014
- 2014-09-18 CN CN201420535484.5U patent/CN204099171U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110485970A (en) * | 2019-09-18 | 2019-11-22 | 东北石油大学 | A kind of exhaust sand control installation for oil well pump |
| CN110485970B (en) * | 2019-09-18 | 2021-10-29 | 东北石油大学 | Exhaust sand prevention device for oil well pump |
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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: 20150114 Termination date: 20150918 |
|
| EXPY | Termination of patent right or utility model |