CN112412892A - Initiative gas-liquid separation formula screw axial flow formula oil-gas multiphase pump - Google Patents
Initiative gas-liquid separation formula screw axial flow formula oil-gas multiphase pump Download PDFInfo
- Publication number
- CN112412892A CN112412892A CN202011318981.6A CN202011318981A CN112412892A CN 112412892 A CN112412892 A CN 112412892A CN 202011318981 A CN202011318981 A CN 202011318981A CN 112412892 A CN112412892 A CN 112412892A
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- shaft
- gas
- oil
- inner shaft
- outer shaft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D31/00—Pumping liquids and elastic fluids at the same time
Abstract
The invention discloses an active gas-liquid separation type spiral axial flow oil-gas mixed transportation pump, which comprises an inner shaft and an outer shaft, wherein the outer shaft is connected with an impeller, a centrifugal impeller is connected with the inner shaft, a vent hole is arranged below the centrifugal impeller, the inner shaft positioned between the centrifugal impeller and a volute is a spiral shaft, a spiral shaft flow channel outlet is arranged on the outer shaft, and the spiral shaft flow channel outlet is communicated with the volute; the invention relates to a multi-phase oil-gas mixed transportation pump, which is characterized in that an inner shaft and an outer shaft are connected with a motor through a differential mechanism, compared with the existing oil-gas mixed transportation pump, the existing oil-gas mixed transportation pump inhibits oil-gas separation so as to ensure normal transportation of a medium, thus causing the problem of low medium transportation efficiency.
Description
Technical Field
The invention relates to an oil-gas mixed transportation pump, in particular to an active gas-liquid separation type spiral axial flow oil-gas mixed transportation pump.
Background
At present, when an existing oil-gas mixed transportation pump conveys an oil-gas medium, the conveyed oil-gas medium is an oil-gas mixture, so that the medium is under the action of centrifugal force in the conveying process, the phenomenon of oil-gas separation is easy to occur, the conveying efficiency is low, and even the problems of high gas content, gas-liquid two phases and the like are difficult to convey.
Disclosure of Invention
The technical task of the invention is to provide an active gas-liquid separation type spiral axial flow oil-gas mixed transportation pump aiming at the defects of the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: the driving gas-liquid separation type spiral axial flow oil-gas mixed transmission pump comprises a suction chamber at the front end of a pump body, a volute at the rear end of the pump body, an impeller, a guide vane and a transmission shaft which are arranged in the pump body, and a motor connected with the transmission shaft, wherein the transmission shaft comprises an inner shaft and an outer shaft, the outer shaft is connected with the impeller through a key, a centrifugal impeller is arranged at the rear end of the suction chamber and connected with the inner shaft, a vent hole is arranged below a flow guide channel of the centrifugal impeller, the inner shaft between the centrifugal impeller and the volute is a spiral shaft, a spiral shaft flow channel outlet is arranged on the outer shaft at the tail end of the spiral shaft, and the spiral shaft flow.
Further improvement: the inner shaft and the outer shaft are separately arranged and are connected with the motor through a differential.
The invention has the advantages that: compared with the existing oil-gas mixed transportation pump, the oil-gas mixed transportation pump provided by the invention has the advantages that the separation of oil and gas is inhibited, so that the normal transportation of a medium is ensured, and the problem of low medium transportation efficiency is solved.
Drawings
FIG. 1 is a schematic diagram of the present invention.
Fig. 2 is a partial schematic view of the invention at a in fig. 1.
Fig. 3 is a schematic view of the connection of the centrifugal impeller of the present invention.
Detailed Description
The invention is described in detail below with reference to the drawings.
As shown in fig. 1-3, an active gas-liquid separation type screw axial flow oil-gas mixture pump includes a suction chamber 1 at the front end of a pump body, a volute 6 at the rear end of the pump body, an impeller 3, a guide vane 4 and a transmission shaft in the pump body, and a motor 11 connected with the transmission shaft, wherein the transmission shaft includes an inner shaft 9 and an outer shaft 8, the outer shaft 8 is connected with the impeller 3 through a key 81, a centrifugal impeller 2 is arranged at the rear end of the suction chamber 1, the centrifugal impeller 2 is connected with the inner shaft 9, a vent hole 21 is arranged below a flow guide channel 20 of the centrifugal impeller 2, the inner shaft 9 between the centrifugal impeller 2 and the volute 6 is a screw axis 5, a screw axial flow channel outlet 7 is arranged on the outer shaft 8 at the tail end of the screw axis 5, and the screw axial flow; the inner shaft 9 is arranged separately from the outer shaft 8, and the inner shaft 9 and the outer shaft 8 are connected to an electric motor 11 via a differential 10.
The working principle is as follows: firstly, the conveyed oil-gas medium enters the suction chamber 1 from the inlet, the oil and the gas of the oil-gas medium are separated under the action of the centrifugal impeller 2, the separated oil enters a pressurizing conveying passage consisting of the impeller 3 and the guide vanes 4 from a flow guide passage 20 of the centrifugal impeller 2 and enters the volute 6 at most, the separated gas enters between the inner shaft 9 and the outer shaft 8 from a vent hole 21 of the centrifugal impeller 2, in order to facilitate the flow of the gas, a plurality of vent holes 21 are uniformly distributed on the circumference of the centrifugal impeller 2, the gas enters the volute 6 from the outlet 7 of the spiral shaft flow passage after passing through the gas conveying passage between the inner shaft 9 and the outer shaft 8, and the gas is conveyed out from the outlet after being mixed with the oil gas in the volute 6.
When the inner shaft 9 and the outer shaft 8 are separately arranged, the inner shaft 9 and the outer shaft 8 are connected with the motor 11 through the differential 10, so that the revolution numbers of the inner shaft 9 and the outer shaft 8 can be inconsistent, the gas passes through the inner shaft 9 and the outer shaft 8, the resistance is small, the oil passes through the outer part of the outer shaft 8, the resistance is large, the revolution number of the inner shaft 9 is larger than that of the outer shaft 8, the inner shaft 9 and the outer shaft 8 generate relative rotation, the inner shaft 9 positioned between the centrifugal impeller 2 and the volute 6 is the screw shaft 5, the gas conveying efficiency can be further improved through the rotation speed difference between the outer shaft 8 and the screw shaft 5, and the medium with high gas content can be conveyed.
Compared with the existing oil-gas mixed transportation pump, the existing oil-gas mixed transportation pump inhibits the separation of oil and gas, so that the normal transportation of a medium is ensured, and the problem of low medium transportation efficiency is caused.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (2)
1. The utility model provides an initiative gas-liquid separation formula screw axial flow formula oil-gas multiphase pump, includes the suction chamber of pump body front end, the spiral case of pump body rear end, impeller, stator and the transmission shaft in the pump body to and the motor of being connected with the transmission shaft, its characterized in that: the transmission shaft comprises an inner shaft and an outer shaft, the outer shaft is connected with an impeller through a key, a centrifugal impeller is arranged at the rear end of the suction chamber and connected with the inner shaft, a vent hole is formed below a flow guide channel of the centrifugal impeller, the inner shaft between the centrifugal impeller and the volute is a screw shaft, a screw shaft flow channel outlet is formed in the outer shaft at the tail end of the screw shaft, and the screw shaft flow channel outlet is communicated with the volute.
2. The active gas-liquid separation type spiral axial flow oil-gas multiphase pump according to claim 1, characterized in that: the inner shaft and the outer shaft are separately arranged and are connected with the motor through a differential.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011318981.6A CN112412892B (en) | 2020-11-23 | 2020-11-23 | Initiative gas-liquid separation formula screw axial flow formula oil-gas multiphase pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011318981.6A CN112412892B (en) | 2020-11-23 | 2020-11-23 | Initiative gas-liquid separation formula screw axial flow formula oil-gas multiphase pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112412892A true CN112412892A (en) | 2021-02-26 |
| CN112412892B CN112412892B (en) | 2021-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011318981.6A Active CN112412892B (en) | 2020-11-23 | 2020-11-23 | Initiative gas-liquid separation formula screw axial flow formula oil-gas multiphase pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN112412892B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU534588A1 (en) * | 1975-07-15 | 1976-11-05 | Предприятие П/Я М-5356 | Dynamic pump for gas-liquid mixtures |
| CN2129650Y (en) * | 1992-07-02 | 1993-04-14 | 张海峰 | Solid/liquid centrifugal separator |
| JPH05113200A (en) * | 1991-10-22 | 1993-05-07 | Mitsubishi Heavy Ind Ltd | Gas/liquid two-phase fluid pump |
| CN2303952Y (en) * | 1997-01-30 | 1999-01-13 | 中国农业机械化科学研究院排灌机械研究所 | Gas-liquid two-phase centrifugal pump |
| CN101398014A (en) * | 2008-10-30 | 2009-04-01 | 中国海洋石油总公司 | Rotating dynamical type multiphase booster pump |
| CN202746275U (en) * | 2012-01-17 | 2013-02-20 | 陕县恒颉矿业有限公司 | Centrifugal pump assembly with accelerating and multi-phase fluid separating transport |
| CN205136154U (en) * | 2015-09-29 | 2016-04-06 | 辽宁长志泵业有限公司 | Screw axis STREAMING oil gas is defeated heterogeneous pump thoughtlessly |
-
2020
- 2020-11-23 CN CN202011318981.6A patent/CN112412892B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU534588A1 (en) * | 1975-07-15 | 1976-11-05 | Предприятие П/Я М-5356 | Dynamic pump for gas-liquid mixtures |
| JPH05113200A (en) * | 1991-10-22 | 1993-05-07 | Mitsubishi Heavy Ind Ltd | Gas/liquid two-phase fluid pump |
| CN2129650Y (en) * | 1992-07-02 | 1993-04-14 | 张海峰 | Solid/liquid centrifugal separator |
| CN2303952Y (en) * | 1997-01-30 | 1999-01-13 | 中国农业机械化科学研究院排灌机械研究所 | Gas-liquid two-phase centrifugal pump |
| CN101398014A (en) * | 2008-10-30 | 2009-04-01 | 中国海洋石油总公司 | Rotating dynamical type multiphase booster pump |
| CN202746275U (en) * | 2012-01-17 | 2013-02-20 | 陕县恒颉矿业有限公司 | Centrifugal pump assembly with accelerating and multi-phase fluid separating transport |
| CN205136154U (en) * | 2015-09-29 | 2016-04-06 | 辽宁长志泵业有限公司 | Screw axis STREAMING oil gas is defeated heterogeneous pump thoughtlessly |
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| Publication number | Publication date |
|---|---|
| CN112412892B (en) | 2021-12-07 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Quan Hui Inventor after: Wang Zhongsheng Inventor after: Du Yuanying Inventor after: Song Kai Inventor after: Li Yanan Inventor after: Wu Yongkang Inventor after: Shi Lishan Inventor before: Quan Hui Inventor before: Du Yuanying Inventor before: Song Kai Inventor before: Li Yanan Inventor before: Wu Yongkang |
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| CB03 | Change of inventor or designer information | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20211111 Address after: 255400 Jin Shan Zhen Zuo Zhuang Cun Bei, Linzi District, Zibo City, Shandong Province Applicant after: Shandong Changzhi Pump Co., Ltd Address before: 730050 No. 287, langongping Road, Qilihe district, Lanzhou City, Gansu Province Applicant before: Lanzhou University of Technology |
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| TR01 | Transfer of patent right |
Effective date of registration: 20220303 Address after: 255400 66, No. 528, Nanfeng Road, Jinshan Town, Linzi District, Zibo City, Shandong Province Patentee after: Shandong Changzhi energy equipment Technology Co.,Ltd. Address before: 255400 Jin Shan Zhen Zuo Zhuang Cun Bei, Linzi District, Zibo City, Shandong Province Patentee before: Shandong Changzhi Pump Co.,Ltd. |
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| TR01 | Transfer of patent right |