CN203051024U - Flow-adjusting injection pump - Google Patents
Flow-adjusting injection pump Download PDFInfo
- Publication number
- CN203051024U CN203051024U CN 201220661878 CN201220661878U CN203051024U CN 203051024 U CN203051024 U CN 203051024U CN 201220661878 CN201220661878 CN 201220661878 CN 201220661878 U CN201220661878 U CN 201220661878U CN 203051024 U CN203051024 U CN 203051024U
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- CN
- China
- Prior art keywords
- pump
- flow
- suction valve
- push rod
- injection pump
- 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 flow-adjusting injection pump, and particularly to an injection pump which can realize automatic flow adjustment in each stroke. The flow-adjusting injection pump belongs to the technical field of equipment for an oil field. A low-pressure backflow structure is adopted for the flow-adjusting injection pump. An ineffective stroke of the pump is realized through causing medium to backflow into a suction chamber in a low-pressure state. When the pump is in an effective stroke, a suction valve is closed through controlling a servo motor, an eccentric shaft, a push rod, etc. The flow-adjusting injection pump accurately controls flow of the pump. Not only is injection of single medium realized, but also the flow-adjusting injection pump can be applied for fixed-proportion injection of two mediums or even three mediums (wherein one inlet of the prior-art pump is divided into two or three inlets). For an example, at a position wherein high difficulty exists in construction of combined station for injection, high-pressure injection and mixing of low-pressure water and polymer are directly realized through the flow-adjusting injection pump without high-pressure water introduction.
Description
Technical field
The utility model relates to a kind of accent amount injection pump, specifically relates to a kind of every injection pump that can realize that all the flow automation is regulated, and it belongs to the oil field equipment technical field.
Background technique
Along with the oil field enters late high water content period exploitation, be that the tertiary oil recovery technology of representative becomes the important technical that improves oil recovery factor, continues to prolong the oilfield stable production phase to annotate ternary and the polymer injection displacement of reservoir oil.Produced ternary injection pump and polymer injection pump, the well number of going into according to every infusion successively is divided into single pump individual well, the many wells of a pump and a pump Mitsui technology again thereupon.Main use is that ratio is regulated pump in the injection technology system of a present pump Mitsui, but ratio adjusting pump exists following problem:
1, adopt the ratio of servo-actuated piston structure to regulate pump, the spring life in the servo-actuated piston structure is low; Vibrations and the noise of baffle ring are big; The seal arrangement leakage phenomenon is serious;
2, adopt the ratio of straight line switch control type to regulate pump, its seal durability is lower;
3, the pump maintenance is inconvenient.
Thereby the accent amount injection pump of researching and developing a kind of reliability height, easily damaged parts long service life and maintaining easily and keep in repair is imperative.
Summary of the invention
Problem in view of the prior art existence, the purpose of this utility model is to provide a kind of on the basis of original injection pump, on each cylinder of the fluid end of injection pump, increase a flow regulator, actuator, detection system and control system comprising flow regulator, thereby realize the every purpose that can realize Flow-rate adjustment of injection pump, and can overcome the defective that original ratio is regulated pump, and can be safely, accent amount injection pump convenient, that reliably turn round.
To achieve these goals, the technological scheme that the utility model adopts is a kind of accent amount injection pump, comprising: pump-foot, power end, driving end and fluid end; Power end, driving end and fluid end are installed on the pump-foot, and driving end is connected with fluid end; Described fluid end comprises 3 oil hydraulic cylinders, and each oil hydraulic cylinder of fluid end comprises: liquid cylinder, plunger, filler, suction valve and expulsion valve; Be provided with suction valve and expulsion valve in the liquid cylinder, plunger moves reciprocatingly in Stuffing box, is provided with filler between plunger and the filler casing, and the filler two ends are provided with guide sleeve; It is characterized in that: pump duty is regulated the suction valve lower end that actuator is installed in pump, and it is made up of push rod, guide pad, eccentric shaft, motor cabinet, actuating motor and control system thereof; Described push rod is positioned at the lower end of suction valve, and the push rod lower end is provided with guide pad, and push rod is supported by eccentric shaft, and eccentric shaft is connected with actuating motor, and actuating motor is fixed on the motor cabinet; Change over to when discharging stroke at pump, because the suction valve of accent amount injection pump is by the push rod jack-up of lower end, suction valve is in open mode, and medium is back to suction chamber by suction valve, and pump is in invalid discharge stroke; When plunger was forwarded to specified position, control system was sent control signal, driven by servomotor eccentric shaft Rotate 180 °, push rod falls, and suction valve closure, pump change effective discharge stroke over to, liquid is discharged in the pump discharge line under the effect of pressure, realizes the pump duty adjusting.
Described backlash is back to suction chamber by control media and realizes under low-pressure state, be the low pressure return-flow structure.
Described power end comprises pump drive motor and speed regulating mechanism.
Described control system is made up of the encoder that is installed in the pump drive end and electric control box, and control system has two functions:
A) by encoder, the preceding initial point position of measuring pump;
B) passing the signal of coming with encoder is benchmark, by the computing to setting value, determine till the action triggers point of encoder, send trigger signal control actuating motor Rotate 180 °, accurately the control push rod rises the opportunity of (or falling), thereby reaches the purpose of regulating pump duty.
Working principle of the present utility model is:
Plunger diameter at pump, running length, reciprocal time is all under the constant situation, regulate the flow of pump by changing pump effective travel length, the running length of pump is divided into two-part composition: a part is the effective travel length of pump, and pump is to be injected in the discharge conduit by expulsion valve in the effective travel medium; Another part is the backlash length of pump, and backlash is to be back to suction chamber by control media under low-pressure state, and pump is at this moment discharges in the stroke, and medium is got back in the suction chamber of pump by suction valve; Its formula is:
Q=
×D
×S×n×60
Wherein: Q: the flow (m of pump
3/ h), and D: pump plunger diameter (m), S: pump stroke length (m), n: the pump reciprocal time (rev/min).
Advantage of the present utility model is: it adopts the low pressure return-flow structure, and the backlash of pump is to be back to suction chamber by control media under low-pressure state to realize; When pump is in the effective travel; Close suction valve by controls such as actuating motor and eccentric shaft, push rods; The flow of its accurate control pump, not only can realize the injection of single medium, the ratio that can also be applied to two media or even three kinds of media is injected (entrance that will have single pump now separates two or three), such as not too conveniently building the place that multi-purpose station injects, need not lead to high pressure water, directly realize that by this pump the high pressure of low-pressure water and polymer injects and mixing.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the sectional drawing of this hydraulic pressure end;
Among the figure: 1, pump-foot, 2, power end, 3, driving end, 4, fluid end, 5, liquid cylinder, 6, plunger, 7, filler, 8, suction valve, 9, expulsion valve, 10 Stuffing boxes, 11, guide sleeve, 12, push rod, 13, guide pad, 14, eccentric shaft, 15, motor cabinet, 16 actuating motors.
Embodiment
A kind of accent amount injection pump, comprising: pump-foot 1, power end 2, driving end 3 and fluid end 4; Power end 2, driving end 3 and fluid end 4 are installed on the pump-foot 1, and driving end 2 is connected with fluid end 4; Described fluid end 4 comprises 3 oil hydraulic cylinders, and each oil hydraulic cylinder of fluid end 4 comprises: liquid cylinder 5, plunger 6, filler 7, suction valve 8 and expulsion valve 9; Be provided with suction valve 8 and expulsion valve 9 in the liquid cylinder, plunger 6 moves reciprocatingly in Stuffing box 10, is provided with filler 7 between plunger 6 and Stuffing box 10 bodies, and filler 7 two ends are provided with guide sleeve 11; It is characterized in that: it also comprises pump duty adjusting actuator, and described pump duty is regulated suction valve 8 lower ends that actuator is installed in pump, and it is made up of push rod 12, guide pad 13, eccentric shaft 14, motor cabinet 15, actuating motor 16 and control system thereof; Described push rod 12 is positioned at the lower end of suction valve 8, and push rod 12 lower ends are provided with guide pad 13, and push rod 12 is supported by eccentric shaft 14, and eccentric shaft 14 is connected with actuating motor 16, and actuating motor 16 is fixed on the motor cabinet 15; When pump changed the discharge stroke over to, the suction valve 8 of accent amount injection pump was by push rod 12 jack-up of lower end, and suction valve 8 is in open mode, and medium is back to suction chamber by suction valve 8, and pump is in invalid discharge stroke; When plunger 6 was forwarded to specified position, control system was sent control signal, and actuating motor 16 drives eccentric shafts 12 Rotate 180s °, push rod falls, and suction valve 8 cuts out, and pump changes effective discharge stroke over to, liquid is discharged in the pump discharge line under the effect of pressure, realizes the pump duty adjusting.
The backlash of described pump is to be back to suction chamber by control media under low-pressure state to realize.
Described power end 2 comprises pump drive motor and speed regulating mechanism.
Described control system is made up of the encoder that is installed in pump drive end 3 and electric control box, and control system has two functions:
A) by encoder, the preceding initial point position of measuring pump;
B) passing the signal of coming with encoder is benchmark, by the computing to setting value, determine till the action triggers point of encoder, send trigger signal control actuating motor 16 Rotate 180s °, accurately control push rod 12 rises the opportunity of (or falling), thereby reaches the purpose of regulating pump duty.
Working principle of the present utility model is:
Plunger 6 diameters at pump, running length, reciprocal time is all under the constant situation, regulate the flow of pump by changing pump effective travel length, the running length of pump is divided into two-part composition: a part is the effective travel length of pump, and pump is to be injected in the discharge conduit by expulsion valve in the effective travel medium; Another part is the backlash length of pump, and backlash is to be back to suction chamber by control media under low-pressure state, and pump is at this moment discharges in the stroke, and medium is got back in the suction chamber of pump by suction valve; Its formula is:
Q=
×D
×S×n×60
Wherein: Q: the flow (m of pump
3/ h), and D: pump plunger diameter (m), S: pump stroke length (m), n: the pump reciprocal time (rev/min).
Claims (1)
1. accent amount injection pump, comprising: pump-foot, power end, driving end and fluid end; Power end, driving end and fluid end are installed on the pump-foot, and driving end is connected with fluid end; Described fluid end comprises 3 oil hydraulic cylinders, and each oil hydraulic cylinder of fluid end comprises: liquid cylinder, plunger, filler, suction valve and expulsion valve; Be provided with suction valve and expulsion valve in the liquid cylinder, plunger moves reciprocatingly in Stuffing box, is provided with filler between plunger and the filler casing, and the filler two ends are provided with guide sleeve; It is characterized in that: pump duty is regulated the suction valve lower end that actuator is installed in pump, and it is made up of push rod, guide pad, eccentric shaft, motor cabinet, actuating motor and control system thereof; Described push rod is positioned at the lower end of suction valve, and the push rod lower end is provided with guide pad, and push rod is supported by eccentric shaft, and eccentric shaft is connected with actuating motor, and actuating motor is fixed on the motor cabinet; Change over to when discharging stroke at pump, because the suction valve of accent amount injection pump is by the push rod jack-up of lower end, suction valve is in open mode, and medium is back to suction chamber by suction valve, and pump is in invalid discharge stroke; When plunger was forwarded to specified position, control system was sent control signal, driven by servomotor eccentric shaft Rotate 180 °, push rod falls, and suction valve closure, pump change effective discharge stroke over to, liquid is discharged in the pump discharge line under the effect of pressure, realizes the pump duty adjusting.
2A kind of accent amount injection pump according to claim 1, it is characterized in that: described power end comprises pump drive motor and speed regulating mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220661878 CN203051024U (en) | 2012-12-05 | 2012-12-05 | Flow-adjusting injection pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220661878 CN203051024U (en) | 2012-12-05 | 2012-12-05 | Flow-adjusting injection pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203051024U true CN203051024U (en) | 2013-07-10 |
Family
ID=48733983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220661878 Expired - Fee Related CN203051024U (en) | 2012-12-05 | 2012-12-05 | Flow-adjusting injection pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203051024U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016293A (en) * | 2012-12-05 | 2013-04-03 | 王湫锂 | Adjustable-flow injection pump |
| CN104234994A (en) * | 2014-09-22 | 2014-12-24 | 杨文升 | High-precision proportional regulating pump |
| CN109779871A (en) * | 2019-02-28 | 2019-05-21 | 王湫锂 | A kind of fluid power injection device and application thereof |
-
2012
- 2012-12-05 CN CN 201220661878 patent/CN203051024U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016293A (en) * | 2012-12-05 | 2013-04-03 | 王湫锂 | Adjustable-flow injection pump |
| CN103016293B (en) * | 2012-12-05 | 2015-08-19 | 王湫锂 | Tune amount injection pump |
| CN104234994A (en) * | 2014-09-22 | 2014-12-24 | 杨文升 | High-precision proportional regulating pump |
| CN104234994B (en) * | 2014-09-22 | 2017-04-26 | 杨文升 | High-precision proportional regulating pump |
| CN109779871A (en) * | 2019-02-28 | 2019-05-21 | 王湫锂 | A kind of fluid power injection device and application thereof |
| CN109779871B (en) * | 2019-02-28 | 2024-01-19 | 王湫锂 | Hydraulic injection device and application thereof |
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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: 20130710 Termination date: 20151205 |
|
| EXPY | Termination of patent right or utility model |