CN101696687A - Semi-closed double-screw oil-gas mixed pump for underwater operation - Google Patents
Semi-closed double-screw oil-gas mixed pump for underwater operation Download PDFInfo
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- CN101696687A CN101696687A CN200910218544A CN200910218544A CN101696687A CN 101696687 A CN101696687 A CN 101696687A CN 200910218544 A CN200910218544 A CN 200910218544A CN 200910218544 A CN200910218544 A CN 200910218544A CN 101696687 A CN101696687 A CN 101696687A
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Abstract
The invention discloses a semi-closed double-screw oil-gas mixed pump for underwater operation. The oil-gas mixed pump comprises a motor and a double-screw pump. The double-screw pump comprises a pump shell and a pump body bushing arranged in the pump shell. The double-screw pump adopts a horizontal side-in-top-out structure, and the output shaft of the motor penetrates the pump body bushing. A driven shaft is arranged on one side of the output shaft in the pump bushing, and the output shaft is engaged with the driven shaft through a synchronizer gear. The outside of the synchronizer gear is also provided with a gearbox containing lubricating oil, and the inside of the gearbox is also provided with an oil pump connected with the output shaft. The double-screw oil-gas mixed pump completely meets the conditions such as sealing and anti-corrosion for the underwater operation; the pump has a compact integral structure, a shaft joint and other devices are saved, and the floor area is small. Theoretically, the axial forces are counterbalanced, the motor is conveniently cooled, and the integral operation of the pump is stable so as to finally achieve the reliable and high-efficient underwater operation of the double-screw oil-gas mixed pump.
Description
Technical field
The present invention relates to a kind of two screw pump, specifically be meant a kind of semi-closed double-screw oil-gas mixed defeated pump that is used for underwater operation.
Background technique
Usually oil, gas association in the petroleum production, traditional method are will oil, gas is carried respectively after separating, and the multiphase pump of oil and gas multiphase flow technology to be Yi Yitai carry out multi-phase mixed delivering is carried liquid, gas component simultaneously.The multi-phase pipeline system compares with traditional fixed platform production system under water, can save a large amount of oil field development expenses, it has tangible economic benefit, especially be fit to remote the conveying, promoted global offshore oil exploration exploitation to turn to deep water sea area by the diving marine site, marginal oil field being developed, have remarkable economic efficiency and application prospects, is the current high-tech process engineering of abroad researching and developing.Key equipment in the multi-phase pipeline system is the multi-phase pipeline pump.In various multi-phase pipeline pumps, the twin-screw multiphase mixing transmission pump has remarkable advantages, thereby has been subjected to the attention of each major oil companies of the world, also is to use many a kind of oil-gas mixed delivery pumps at present.
The operating conditions of oil-gas mining under water, proposed specific (special) requirements for the double-screw oil-gas multiphase mixing transmission pump of operation under water, no matter be, still all be different from traditional screw pump aspect pressure-bearing shell design, driving mode design, sealing technique, the aseptic technic from multiphase pump global design aspect.
Summary of the invention
The objective of the invention is to design a kind of semi-closed double-screw oil-gas mixed defeated pump of underwater operation, overcome the variety of issue that the operating conditions of oil-gas mining is under water brought, satisfy the specific (special) requirements of underwater operation.
For achieving the above object, the technical solution used in the present invention is: comprise motor and the two screw pump that is connected with motor, described two screw pump comprises the two screw pump housing and is arranged on the interior pump housing lining of two screw pump housing, the horizontal side of this two screw pump employing goes out structure on advancing, promptly offer the medium inlet in two screw pump housing side, two screw pump housing upside offers media outlet, the housing of motor is connected with the two screw pump housing by seal ring, the output shaft of motor runs through pump housing lining, and a side that is positioned at output shaft in pump housing lining also is provided with driven shaft, output shaft is meshed by synchromesh gear with driven shaft, the outside at synchromesh gear also is provided with the gear-box that lubricant oil is housed, and also is provided with the oil pump that is connected with output shaft in gear-box.
Be provided with the screw rotor of two sections symmetric arrangement on output shaft of the present invention and the driven shaft, to eliminate axial force, screw rotor is connected with axle by key, and medium is entered from the side by inlet and is divided into the suction of two route screw rotor two ends, after supercharging, conflux, discharge from the top through outlet by intermediate section; Synchromesh gear and screw rotor rotate synchronously, guarantee the phase place and the back lash of screw rotor, and synchromesh gear adopts the oil sump flooding system lubrication; Motor adopts the immersion oil insulated motor, and the arranged outside at motor field frame has attached heat exchanging tube, lubricant oil in the gear-box is in oil pump and lubricating oil pipeline are transported to attached heat exchanging tube outside the electric machine casing, utilize cooled with seawater that heat is taken away, be transported in the electric machine casing through attached heat exchanging tube afterwards, electric machine casing and gear-box are connected to form the loop by the bottom pipeline; Place spraying HEMPASIL 77500 anti-corrosion materials that electric machine casing, two screw pump housing and gear-box contact with water.Said each housing joint is provided with seal ring, and the pump fed sheet of a media separates by the combination of oil sealing and mechanical seal and the lubricant medium of gear-box and electric machine casing, thereby reaches sealing effect.
In sum, the invention enables double-screw oil-gas mixed defeated pump to satisfy the air-proof condition and the aseptic condition of underwater operation, while pump compact overall structure, equipment such as coupling have been saved, floor space is little, and axial force offsets in theory, and the motor cooling is convenient, the pump overall operation is stable, has finally realized oil and gas multiphase flow two screw pump operating mode reliability of operation and high efficiency under water.
Description of drawings
Fig. 1 is a cross-sectional structure schematic representation of the present invention;
Fig. 2 is a vertical section structure schematic representation of the present invention;
Fig. 3 is an overall structure schematic representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
Referring to Fig. 1,2,3, the two screw pump that the present invention includes motor 3 and be connected with motor 3, two screw pump comprises two screw pump housing 7 and is arranged on pump housing lining 8 in the two screw pump housing 7, the horizontal side of this two screw pump employing goes out structure on advancing, promptly offer medium inlet 13 in two screw pump housing 7 sides, two screw pump housing 7 upsides offer media outlet 14, the housing 4 of motor 3 is connected with two screw pump housing 7 by seal ring 6, the output shaft 1 of motor 3 runs through pump housing lining 8, and a side that is positioned at output shaft 1 in pump housing lining 8 also is provided with driven shaft 2, output shaft 1 is meshed by synchromesh gear 10 with driven shaft 2, also be provided with the gear-box 11 that lubricant oil is housed in the outside of synchromesh gear 10, output shaft 1 and driven shaft 2 are provided with the screw rotor 9 of two sections symmetric arrangement, to eliminate axial force, screw rotor 9 is connected with axle by key, medium is entered from the side by inlet 13 and is divided into the suction of two route screw rotors, 9 two ends, after supercharging, conflux by intermediate section, discharge from the top through exporting 14, synchromesh gear 10 rotates synchronously with screw rotor 9, guarantee the phase place and the back lash of screw rotor 9, and synchromesh gear 10 adopts the oil sump flooding system lubrication, and in gear-box 11, also be provided with the oil pump 12 that is connected with output shaft 1, electric machine casing 4, two screw pump housing 7 sprays HEMPASIL 77500 anti-corrosion materials with the place that gear-box 11 contacts with water, motor 3 adopts the immersion oil insulated motor, and the arranged outside at motor field frame 4 has attached heat exchanging tube 5, lubricant oil in the gear-box 11 is in oil pump 12 and lubricating oil pipeline 15 are transported to attached heat exchanging tube 5 outside the electric machine casing 4, utilize cooled with seawater that heat is taken away, be transported in the electric machine casing 4 through attached heat exchanging tube 5 afterwards, electric machine casing 4 and gear-box 11 are connected to form the loop by bottom pipeline 16, each housing joint all connects by seal ring 6, the pump fed sheet of a media separates by the combination of oil sealing 17 and mechanical seal 18 and the lubricant medium of gear-box 11 and electric machine casing 4, thereby reaches sealing effect.
Its working procedure is as follows: motor 3 rotates back drive output shaft 1 and forwards to, output shaft 1 drives oil pump 12 and makes the lubrication oil circulation cooling, output shaft 1 rotates synchronously by synchromesh gear 10 drive driven shafts 2 simultaneously, guarantee the phase place and the back lash of screw rotor 9, synchromesh gear 10 adopts the oil sump flooding system lubrication.Be divided into two route screw rotors, 9 two ends after fed sheet of a media enters body from 13 sides, medium inlet and suck, after supercharging, conflux, discharge from the top through media outlet 14 by intermediate section.
Claims (6)
1. the semi-closed double-screw oil-gas mixed defeated pump that is used for underwater operation, comprise motor (3) and the two screw pump that is connected with motor (3), it is characterized in that: described two screw pump comprises two screw pump housing (7) and is arranged on the interior pump housing lining (8) of two screw pump housing (7), the horizontal side of this two screw pump employing goes out structure on advancing, promptly offer medium inlet (13) in two screw pump housing (7) side, two screw pump housing (7) upside offers media outlet (14), the housing (4) of motor (3) is connected with two screw pump housing (7) by seal ring (6), the output shaft (1) of motor (3) runs through pump housing lining (8), and a side that is positioned at output shaft (1) in pump housing lining (8) also is provided with driven shaft (2), output shaft (1) is meshed by synchromesh gear (10) with driven shaft (2), also be provided with the gear-box (11) that lubricant oil is housed in the outside of synchromesh gear (10), and in gear-box (11), also be provided with the oil pump (12) that is connected with output shaft (1).
2. the semi-closed double-screw oil-gas mixed defeated pump that is used for underwater operation according to claim 1, it is characterized in that: said output shaft (1) and driven shaft (2) are provided with the screw rotor (9) of two sections symmetric arrangement, to eliminate axial force, screw rotor (9) is connected with axle by key, medium is entered from the side by inlet (13) and is divided into the suction of two route screw rotor (9) two ends, after supercharging, conflux, discharge from the top through outlet (14) by intermediate section.
3. the semi-closed double-screw oil-gas mixed defeated pump that is used for underwater operation according to claim 1 and 2, it is characterized in that: said synchromesh gear (10) rotates synchronously with screw rotor (9), guarantee the phase place and the back lash of screw rotor (9), and synchromesh gear (10) adopts the oil sump flooding system lubrication.
4. the semi-closed double-screw oil-gas mixed defeated pump that is used for underwater operation according to claim 1, it is characterized in that: said motor (3) adopts the immersion oil insulated motor, and the arranged outside at motor field frame (4) has attached heat exchanging tube (5), lubricant oil in the gear-box (11) is in oil pump (12) and lubricating oil pipeline (15) are transported to attached heat exchanging tube (5) outside the electric machine casing (4), utilize cooled with seawater that heat is taken away, in attached heat exchanging tube (5) was transported to electric machine casing (4), electric machine casing (4) and gear-box (11) were connected to form the loop by bottom pipeline (16) afterwards.
5. the semi-closed double-screw oil-gas mixed defeated pump that is used for underwater operation according to claim 1 is characterized in that: place spraying HEMPASIL 77500 anti-corrosion materials that said electric machine casing (4), two screw pump housing (7) and gear-box (11) contact with water.
6. the semi-closed double-screw oil-gas mixed defeated pump that is used for underwater operation according to claim 1, it is characterized in that: said each housing joint is provided with seal ring (6), the pump fed sheet of a media separates by the combination of oil sealing (17) and mechanical seal (18) and the lubricant medium of gear-box (11) and electric machine casing (4), thereby reaches sealing effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910218544A CN101696687A (en) | 2009-10-27 | 2009-10-27 | Semi-closed double-screw oil-gas mixed pump for underwater operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910218544A CN101696687A (en) | 2009-10-27 | 2009-10-27 | Semi-closed double-screw oil-gas mixed pump for underwater operation |
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| Publication Number | Publication Date |
|---|---|
| CN101696687A true CN101696687A (en) | 2010-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910218544A Pending CN101696687A (en) | 2009-10-27 | 2009-10-27 | Semi-closed double-screw oil-gas mixed pump for underwater operation |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102062088A (en) * | 2011-01-19 | 2011-05-18 | 西安交通大学 | Two-screw multiphase pump device suitable for working condition with high air void |
| WO2012065320A1 (en) * | 2010-11-16 | 2012-05-24 | 上海维尔泰克螺杆机械有限公司 | Twin-screw liquid pump |
| CN102997516A (en) * | 2011-09-08 | 2013-03-27 | 上海汉钟精机股份有限公司 | Semi-closed twin-screw expander |
| CN105443374A (en) * | 2015-12-31 | 2016-03-30 | 台州佳迪泵业有限公司 | Electric submersible screw pump for well |
| CN117780636A (en) * | 2024-02-26 | 2024-03-29 | 东营华来智能科技有限公司 | Proportional quantitative liquid feedback device applied to single-screw oil-gas mixed delivery pump |
-
2009
- 2009-10-27 CN CN200910218544A patent/CN101696687A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012065320A1 (en) * | 2010-11-16 | 2012-05-24 | 上海维尔泰克螺杆机械有限公司 | Twin-screw liquid pump |
| CN102062088A (en) * | 2011-01-19 | 2011-05-18 | 西安交通大学 | Two-screw multiphase pump device suitable for working condition with high air void |
| CN102062088B (en) * | 2011-01-19 | 2012-11-28 | 西安交通大学 | Two-screw multiphase pump device suitable for working condition with high air void |
| CN102997516A (en) * | 2011-09-08 | 2013-03-27 | 上海汉钟精机股份有限公司 | Semi-closed twin-screw expander |
| CN105443374A (en) * | 2015-12-31 | 2016-03-30 | 台州佳迪泵业有限公司 | Electric submersible screw pump for well |
| CN105443374B (en) * | 2015-12-31 | 2018-05-08 | 台州佳迪泵业有限公司 | A kind of well immersible screw pump |
| CN117780636A (en) * | 2024-02-26 | 2024-03-29 | 东营华来智能科技有限公司 | Proportional quantitative liquid feedback device applied to single-screw oil-gas mixed delivery pump |
| CN117780636B (en) * | 2024-02-26 | 2024-05-03 | 东营华来智能科技有限公司 | Proportional quantitative liquid feedback device applied to single-screw oil-gas mixed delivery pump |
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Open date: 20100421 |