CN111102188A - Screw pump with equal wall thickness - Google Patents
Screw pump with equal wall thickness Download PDFInfo
- Publication number
- CN111102188A CN111102188A CN202010017916.3A CN202010017916A CN111102188A CN 111102188 A CN111102188 A CN 111102188A CN 202010017916 A CN202010017916 A CN 202010017916A CN 111102188 A CN111102188 A CN 111102188A
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- CN
- China
- Prior art keywords
- fixedly connected
- fastening sleeve
- sucker rod
- screw pump
- oil 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
- F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
- F04C13/005—Removing contaminants, deposits or scale from the pump; Cleaning
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
- F04C13/008—Pumps for submersible use, i.e. down-hole pumping
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/80—Other components
- F04C2240/805—Fastening means, e.g. bolts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The invention relates to the technical field of oil field drilling and production equipment, and discloses a screw pump with equal wall thickness, which comprises a fixed bottom plate, wherein the left side of the upper surface of the fixed bottom plate is fixedly connected with a servo motor, the middle part and the right side of the upper surface of the fixed bottom plate are respectively and fixedly connected with a communicating device and a fastening sleeve, and the inner cavity of the fastening sleeve is fixedly connected with a stator. These wall thickness screw pumps, through the outward appearance of tubular column exempt from fixedly connected with and right anti-disengaging device, and utilize and right anti-disengaging device in support slips and the mode of adapter sleeve threaded connection, position to the tubular column is restricted, avoid arousing the problem of tubular column dropout because of oil productivity is high, improve the effect that the tubular column links and detains, cup joint the surface at the tubular column through the tension anchor simultaneously, ensure the tension anchor, the centre of a circle that tubular column and adapter sleeve's cross section formed is located same point, thereby reduce the relative vibration of the screw pump body and to the wearing and tearing that itself caused, improve the life of screw pump.
Description
Technical Field
The invention relates to the technical field of oil field drilling and production equipment, in particular to a screw pump with equal wall thickness.
Background
A spiral pump, also called 'spiral water raiser' or 'Archimedes spiral pump', is a pump which utilizes the rotation of spiral blade to make water body spirally raise along axial direction, and is formed from shaft, spiral blade and shell, when the pump is used for pumping oil, the pump is obliquely placed in the oil, and the inclination angle of main shaft of the water pump is less than that of spiral blade, and the lower end of spiral blade is contacted with oil liquid, and the single-stage working pressure difference of oil-extracting screw pump is mainly implemented by means of interference between stator and rotor, and its interference is large.
When oil extraction is carried out for a long time through an oil extraction screw pump, wax contained in crude oil is in a dissolved state, but the solubility of paraffin in oil is reduced along with the reduction of temperature, so that the paraffin is continuously separated out along with the gradual reduction of the temperature in the lifting process of fluid, the crystallization of the paraffin is increased and is accumulated and deposited on the inner wall of a pipeline, when the paraffin is excessively crystallized, an oil pipe is blocked, the oil extraction effect of the oil extraction screw pump is influenced, in the using process of the screw pump, the butt joint position of the screw pump device is deviated or even falls off due to the movement of oil in the oil pumping process, and therefore, the screw pump with the equal wall thickness is provided.
Disclosure of Invention
The invention provides a screw pump with equal wall thickness, which has the advantages of improving the effect of connecting and buckling a pipe column, prolonging the service life of the screw pump, facilitating the quick cleaning of a pipeline and simultaneously prolonging the hot washing period, and solves the problems in the prior art.
In order to achieve the above purpose, the invention provides the following technical scheme to realize: a screw pump with equal wall thickness comprises a fixed base plate, wherein a servo motor is fixedly connected to the left side of the upper surface of the fixed base plate, a communication device and a fastening sleeve are fixedly connected to the middle portion and the right side of the upper surface of the fixed base plate respectively, a stator is fixedly connected to the inner cavity of the fastening sleeve, a centering anti-falling device is movably sleeved on the left side of the inner cavity of the fastening sleeve, a ring block is fixedly connected to the left side of the centering anti-falling device, the outer surface of the ring block is movably connected with the inner surface of the fastening sleeve, an oil pipe ring hollow sleeve is fixedly connected to the right side of the ring block through a hot washing device, a rotor is movably sleeved inside the stator, the left side of the rotor is fixedly connected with the right side of the oil pipe ring hollow sleeve, the hot washing device comprises an oil pipe liquid column, the right side of the oil pipe liquid column is in sealed sleeving connection with the left side of the oil pipe ring hollow sleeve through a tight ring, the outer surface activity of oil pipe liquid column has cup jointed pretension elastic expansion part, the left end of pretension elastic expansion part contacts with the right side of joint ring, the right-hand member of pretension elastic expansion part contacts with the left side of tight ring, servo motor's output shaft fixedly connected with trace.
Optionally, the sucker rod has been cup jointed in the inside activity of intercommunication device, the left side of sucker rod runs through intercommunication device and fastening sleeve and extends to fastening sleeve's inside, the surface of sucker rod cup joints with fastening sleeve's inside activity, the left end fixedly connected with oil pipe of sucker rod, oil pipe's positive fixedly connected with hot washing valve, the right-hand member of trace runs through the inside that the intercommunication device extends to the intercommunication device, the surface of trace and the inside swing joint of intercommunication device, the right-hand member of trace and the left side fixed connection of sucker rod.
Optionally, the right end of the sucker rod penetrates through the communicating device and extends to the right side of the communicating device, the right end of the sucker rod penetrates through the fastening sleeve and extends to the inside of the fastening sleeve, the right side of the sucker rod is fixedly connected with the left side of the centering anti-falling device, a speed reducer is sleeved on the front side of the sucker rod in a threaded manner, and the speed reducer is located between the communicating device and the centering anti-falling device.
Optionally, the left end of the rotor penetrates through the stator and extends to the right side of the stator, and a pipe column is fixedly connected to the right side of the rotor and located inside the fastening sleeve.
Optionally, the outer surface of the pipe column is fixedly connected with a centering anti-falling device, the centering anti-falling device comprises a tension anchor, the inner surface of the tension anchor is fixedly connected with the outer surface of the pipe column, the outer surface of the tension anchor is fixedly connected with a supporting slip, and the outer surface of the supporting slip is in threaded sleeve joint with the inner surface of the fastening sleeve.
The invention provides a screw pump with equal wall thickness, which has the following beneficial effects:
1. these wall thickness screw pumps, be connected with through the surface fixed at the tubular column and right anti-disengaging device, and utilize and right anti-disengaging device in support slips and the mode of adapter sleeve threaded connection, position to the tubular column is restricted, avoid arousing the problem of tubular column dropout because of oil productivity is high, improve the effect that the tubular column links and detains, cup joint the surface at the tubular column through the tension anchor simultaneously, ensure the tension anchor, the centre of a circle that tubular column and adapter sleeve's cross section formed is located the same point, thereby reduce the relative vibration of the screw pump body and to the wearing and tearing that itself caused, improve the life of screw pump.
2. These wall thickness screw pumps, through pour into hot water or oil into oil pipe annular space cover, utilize the hot effect of washing pressure down, will heat and wash the valve and open, melt the paraffin of stator inner wall and rotor outer wall and flow away, pour into the paraffin removal and prevention medicament that prevents the paraffin crystallization simultaneously in hot water or oil to utilize pretension elastic expansion part to the bullet of oil pipe liquid column, be convenient for wash the pipeline fast, prolonged the hot washing cycle simultaneously.
In the description of the drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is an enlarged schematic view of FIG. 1 at A;
FIG. 3 is an enlarged view of the hot washing apparatus of the present invention;
fig. 4 is a side half-sectional view of a stator and rotor of the present invention.
In the figure: 1. fixing the bottom plate; 2. a servo motor; 3. a communication device; 4. a stator; 5. a sucker rod; 6. the oil pipe is sleeved annularly; 7. a ring block; 8. a speed reducer; 9. a hot washing device; 91. an oil pipe liquid column; 92. a tight ring; 93. pre-tightening the elastic telescopic component; 94. a snap ring; 10. hot washing the valve; 11. a linkage rod; 12. a rotor; 13. fastening the sleeve; 14. a centralizing anti-drop device; 141. a tension anchor; 142. supporting slips; 15. a pipe string; 16. and (5) oil pipe passing.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, a screw pump with equal wall thickness comprises a fixed base plate 1, a servo motor 2 is fixedly connected to the left side of the upper surface of the fixed base plate 1, a communication device 3 and a fastening sleeve 13 are respectively fixedly connected to the middle and the right side of the upper surface of the fixed base plate 1, a stator 4 is fixedly connected to the inner cavity of the fastening sleeve 13, a centering anti-drop device 14 is movably sleeved on the left side of the inner cavity of the fastening sleeve 13, an annular block 7 is fixedly connected to the left side of the centering anti-drop device 14, the outer surface of the annular block 7 is movably connected to the inner surface of the fastening sleeve 13, an oil pipe annular empty sleeve 6 is fixedly connected to the right side of the annular block 7 through a hot washing device 9, a rotor 12 is movably sleeved inside the stator 4, the left side of the rotor 12 is fixedly connected to the right side of the oil pipe annular empty sleeve 6, the hot washing, the right side of the oil pipe liquid column 91 is hermetically sleeved with the left side of the oil pipe annular sleeve 6 through a compact ring 92, hot water or oil is injected into the oil pipe annular sleeve 6, the hot washing valve 10 is opened under the action of hot washing pressure, paraffin on the inner wall of the stator 4 and the outer wall of the rotor 12 is melted and flows away, a paraffin removal and prevention agent for preventing paraffin crystallization is injected into the hot water or oil, the oil pipe liquid column 91 is bounced by a pre-tightening elastic telescopic component 93, so that the pipeline can be rapidly cleaned, the hot washing period is prolonged, the left side of the oil pipe liquid column 91 is hermetically sleeved with the right side of the annular block 7 through a clamping ring 94, the outer surface of the oil pipe liquid column 91 is movably sleeved with the pre-tightening elastic telescopic component 93, the left end of the pre-tightening elastic telescopic component 93 is in contact with the right side of the clamping ring 94, and the right end of the pre-tightening elastic telescopic component 93 is in contact with the left side, and an output shaft of the servo motor 2 is fixedly connected with a linkage rod 11.
The sucker rod 5 is movably sleeved in the communicating device 3, the left side of the sucker rod 5 penetrates through the communicating device 3 and the fastening sleeve 13 and extends to the inside of the fastening sleeve 13, the outer surface of the sucker rod 5 is movably sleeved in the fastening sleeve 13, the left end of the sucker rod 5 is fixedly connected with an oil through pipe 16, the front side of the oil through pipe 16 is fixedly connected with a hot washing valve 10, the right end of a linkage rod 11 penetrates through the communicating device 3 and extends to the inside of the communicating device 3, the outer surface of the linkage rod 11 is movably connected with the inside of the communicating device 3, the right end of the linkage rod 11 is fixedly connected with the left side of the sucker rod 5, and the equal-wall-thickness screw pump has the advantages of small eccentric distance, short lead and high single-stage pressure difference compared with a single-head screw pump under the conditions of the same discharge.
The right end of the sucker rod 5 penetrates through the communicating device 3 and extends to the right side of the communicating device 3, the right end of the sucker rod 5 penetrates through the fastening sleeve 13 and extends to the inside of the fastening sleeve 13, the right side of the sucker rod 5 is fixedly connected with the left side of the centering anti-falling device 14, the front side of the sucker rod 5 is in threaded sleeve connection with the speed reducer 8, the speed reducer 8 is located between the communicating device 3 and the centering anti-falling device 14, the maximum sliding speed between the stator 4 and the rotor 12 of the equal-wall-thickness screw pump is smaller than that of a single-head screw pump under the condition that the rotating speeds of the rotors 12 are the same, the sliding friction of the rotors 12 is also smaller than that of the single-head screw pump, and therefore the rubber abrasion degree of the stator 4 is relatively small in the same.
Wherein, the left end of rotor 12 runs through stator 4 and extends to the right side of stator 4, the right side fixedly connected with tubular column 15 of rotor 12, tubular column 15 is located fastening sleeve 13's inside, rights anti-disengaging device 14 through the fixedly connected with exempts from in the outward appearance of tubular column 15 to support slips 142 and fastening sleeve 13 threaded connection's mode in utilizing and right anti-disengaging device 14, restrict tubular column 15's position, avoid causing the problem of tubular column dropout because of oil productivity is high, improve the effect that the tubular column links up the knot.
The outer surface of the pipe column 15 is fixedly connected with a centering anti-falling device 14, the centering anti-falling device 14 comprises a tension anchor 141, the inner surface of the tension anchor 141 is fixedly connected with the outer surface of the pipe column 15, the outer surface of the tension anchor 141 is fixedly connected with a supporting slip 142, the outer surface of the supporting slip 142 is in threaded sleeve connection with the inner surface of the fastening sleeve 13, the outer surface of the pipe column 15 is sleeved with the tension anchor 141, the circle centers formed by the cross sections of the tension anchor 141, the pipe column 15 and the fastening sleeve 13 are ensured to be located on the same point, accordingly, abrasion of the screw pump body caused by relative vibration to the screw pump body is reduced, and the service life of the screw pump is.
The working steps, at first, pour into the hot water into the oil pipe annulus 6, start the servomotor 2 and drive the screw pump and carry on the normal operation, the screw pump is washed while taking out this moment, the temperature of the hot water poured into rises gradually and begins the temperature control to be more suitable at fifty degrees, otherwise sink to the shaft bottom and cause the oil stream to block up because of the melting wax block on the oil pipe upper portion becomes the semi-solid galactophore state, and pour into the clear paraffin control medicament of preventing the paraffin crystallization of suitable proportion into the hot water, it melts the wax block crystal to be convenient for, cup joint the tension anchor 141 through the external surface fixation at the tubular column 15 and be convenient for limit the position of the tubular column 15, then through the external surface fixedly connected with at the tension anchor 141 support slips 142 and utilize the connected mode of the screw thread lock between support slips 142 and the fastening sleeve 13, be convenient for limit the.
Note that the present application applies to 3:4, 4:5, 5:6, 6:7, 7: 8 five structures of screw pump with less teeth and more 1 wall thickness. 3:4, 4:5, 5:6, 6:7, 7: 8, comparing the five structures with 1: 2. 2: the effective lengths of the rotor and the stator of the screw pump with the equal wall thickness of the two structures 3 are greatly shortened.
Claims (5)
1. The utility model provides a wall thickness screw pump, includes PMKD (1), its characterized in that: the left side of the upper surface of the fixed base plate (1) is fixedly connected with a servo motor (2), the middle part and the right side of the upper surface of the fixed base plate (1) are respectively fixedly connected with a communicating device (3) and a fastening sleeve (13), the inner cavity of the fastening sleeve (13) is fixedly connected with a stator (4), the left side of the inner cavity of the fastening sleeve (13) is movably sleeved with a righting anti-falling device (14), the left side of the righting anti-falling device (14) is fixedly connected with an annular block (7), the outer surface of the annular block (7) is movably connected with the inner surface of the fastening sleeve (13), the right side of the annular block (7) is fixedly connected with an oil pipe annular empty sleeve (6) through a hot washing device (9), the inner part of the stator (4) is movably sleeved with a rotor (12), and the left side of the rotor (12) is fixedly connected with the right side, device (9) are washed including oil pipe liquid column (91) to heat, the right side of oil pipe liquid column (91) is cup jointed through the left side seal of tight ring (92) with oil pipe annular space cover (6), the right side seal of left side through joint ring (94) and annular piece (7) of oil pipe liquid column (91) is cup jointed, pretension elasticity flexible part (93) have been cup jointed in the surface activity of oil pipe liquid column (91), the left end of pretension elasticity flexible part (93) contacts with the right side of joint ring (94), the right-hand member of pretension elasticity flexible part (93) contacts with the left side of tight ring (92), the output shaft fixedly connected with trace (11) of servo motor (2).
2. A screw pump according to claim 1, wherein: the utility model discloses a sucker rod, including intercommunication device (3), fastening sleeve (13), the inside activity of intercommunication device (3) has cup jointed sucker rod (5), the left side of sucker rod (5) runs through intercommunication device (3) and fastening sleeve (13) and extends to the inside of fastening sleeve (13), the surface of sucker rod (5) is cup jointed with the inside activity of fastening sleeve (13), the left end fixedly connected with of sucker rod (5) leads to oil pipe (16), the positive fixedly connected with hot washing valve (10) of leading to oil pipe (16), the right-hand member of trace (11) runs through intercommunication device (3) and extends to the inside of intercommunication device (3), the surface of trace (11) and the inside swing joint of intercommunication device (3), the right-hand member of trace (11) and the left side fixed connection of sucker rod (5).
3. A screw pump according to claim 2, wherein: the right-hand member of sucker rod (5) runs through intercommunication device (3) and extends to the right side of intercommunication device (3), the right-hand member of sucker rod (5) runs through fastening sleeve (13) and extends to the inside of fastening sleeve (13), the right side of sucker rod (5) and the left side fixed connection who rights anticreep device (14), the front screw thread of sucker rod (5) has cup jointed speed reducer (8), speed reducer (8) are located intercommunication device (3) and right between anticreep device (14).
4. A screw pump according to claim 1, wherein: the left end of the rotor (12) penetrates through the stator (4) and extends to the right side of the stator (4), a pipe column (15) is fixedly connected to the right side of the rotor (12), and the pipe column (15) is located inside the fastening sleeve (13).
5. A screw pump according to claim 4, wherein: the outer fixed surface of tubular column (15) is connected with and rights anticreep device (14), rights anticreep device (14) including tension anchor (141), the internal surface of tension anchor (141) is connected with the outer fixed surface of tubular column (15), the outer fixed surface of tension anchor (141) is connected with and supports slips (142), the surface that supports slips (142) and the internal surface screw thread of fastening sleeve (13) cup joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010017916.3A CN111102188B (en) | 2020-01-08 | 2020-01-08 | Screw pump with equal wall thickness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010017916.3A CN111102188B (en) | 2020-01-08 | 2020-01-08 | Screw pump with equal wall thickness |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111102188A true CN111102188A (en) | 2020-05-05 |
| CN111102188B CN111102188B (en) | 2020-10-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010017916.3A Active CN111102188B (en) | 2020-01-08 | 2020-01-08 | Screw pump with equal wall thickness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111102188B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1670176A1 (en) * | 1988-03-22 | 1991-08-15 | Азербайджанский государственный научно-исследовательский и проектный институт нефтяной промышленности | Device for discharging fluid from column of pump pipes |
| CN202250826U (en) * | 2011-09-21 | 2012-05-30 | 吴玉舒 | Screw pump for oil extraction in oil field |
| CN204113198U (en) * | 2014-07-16 | 2015-01-21 | 中国石油天然气股份有限公司 | Temperature control heat washes anti-pollution packer |
| CN204226182U (en) * | 2014-11-07 | 2015-03-25 | 天津泵业机械集团有限公司 | High temperature helical rotor pump |
| CN205064261U (en) * | 2015-10-16 | 2016-03-02 | 武汉市恒信泰采油设备制造有限公司 | Oil of diving directly drives oil jack |
| CN208153002U (en) * | 2018-04-08 | 2018-11-27 | 中国石油化工股份有限公司 | All-metal screw pump infuses the steam injection string and flow string for adopting integral process tubing string |
| CN110043227A (en) * | 2019-04-19 | 2019-07-23 | 中国石油天然气股份有限公司 | Latent oil hollow rotor screw pump extracting device of oil |
-
2020
- 2020-01-08 CN CN202010017916.3A patent/CN111102188B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1670176A1 (en) * | 1988-03-22 | 1991-08-15 | Азербайджанский государственный научно-исследовательский и проектный институт нефтяной промышленности | Device for discharging fluid from column of pump pipes |
| CN202250826U (en) * | 2011-09-21 | 2012-05-30 | 吴玉舒 | Screw pump for oil extraction in oil field |
| CN204113198U (en) * | 2014-07-16 | 2015-01-21 | 中国石油天然气股份有限公司 | Temperature control heat washes anti-pollution packer |
| CN204226182U (en) * | 2014-11-07 | 2015-03-25 | 天津泵业机械集团有限公司 | High temperature helical rotor pump |
| CN205064261U (en) * | 2015-10-16 | 2016-03-02 | 武汉市恒信泰采油设备制造有限公司 | Oil of diving directly drives oil jack |
| CN208153002U (en) * | 2018-04-08 | 2018-11-27 | 中国石油化工股份有限公司 | All-metal screw pump infuses the steam injection string and flow string for adopting integral process tubing string |
| CN110043227A (en) * | 2019-04-19 | 2019-07-23 | 中国石油天然气股份有限公司 | Latent oil hollow rotor screw pump extracting device of oil |
Non-Patent Citations (1)
| Title |
|---|
| 水岸华庭群上传: ""螺杆泵工作原理及故障处理"", 《百度文库》 * |
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| CN111102188B (en) | 2020-10-09 |
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Effective date of registration: 20200908 Address after: 163000 Guangfeng street, Guangfeng District, Daqing, Heilongjiang Province, No. 23-2 Guangming Street Applicant after: DAQING HUAYU PETROLEUM MACHINERY MANUFACTURING Co.,Ltd. Address before: No. 23-2, Guangming South Street, Guangming Industrial Park, Daqing City, 163000 Heilongjiang Province Applicant before: Xu Haiying |
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Inventor after: Tian Hao Inventor after: Xu Haiying Inventor before: Xu Haiying Inventor before: Tian Hao |
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Effective date of registration: 20200924 Address after: 163000 No. 99, Xuefu street, hi tech Industrial Development Zone, Heilongjiang, Daqing Patentee after: NORTHEAST PETROLEUM University Patentee after: DAQING HUAYU PETROLEUM MACHINERY MANUFACTURING Co.,Ltd. Address before: 163000 Guangfeng street, Guangfeng District, Daqing, Heilongjiang Province, No. 23-2 Guangming Street Patentee before: DAQING HUAYU PETROLEUM MACHINERY MANUFACTURING Co.,Ltd. |