WO2013085433A1 - Магистральный нефтяной электронасосный агрегат и способ сборки агрегата - Google Patents
Магистральный нефтяной электронасосный агрегат и способ сборки агрегата Download PDFInfo
- Publication number
- WO2013085433A1 WO2013085433A1 PCT/RU2012/001025 RU2012001025W WO2013085433A1 WO 2013085433 A1 WO2013085433 A1 WO 2013085433A1 RU 2012001025 W RU2012001025 W RU 2012001025W WO 2013085433 A1 WO2013085433 A1 WO 2013085433A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pump
- shaft
- housing
- rotor
- installation
- Prior art date
Links
Classifications
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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
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D1/006—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps double suction pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
- F04D29/0462—Bearing cartridges
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
- F04D29/049—Roller bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/20—Mounting rotors on shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/605—Mounting; Assembling; Disassembling specially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/622—Adjusting the clearances between rotary and stationary parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/021—Units comprising pumps and their driving means containing a coupling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49229—Prime mover or fluid pump making
- Y10T29/49236—Fluid pump or compressor making
Definitions
- the main oil electric pump unit belongs to the field of units for pumping oil in main oil pipelines.
- a known frame is a vibration-damping foundation pump unit (RF patent Na 103584, IPC F04D29 / 00, published on 04/20/2011 1, patent holder is NKMZ LLC), which contains self-aligning mounting elements (or, in a more correct terminology, lead-in supports).
- RF patent Na 103584, IPC F04D29 / 00 published on 04/20/2011 1
- patent holder is NKMZ LLC
- self-aligning mounting elements or, in a more correct terminology, lead-in supports.
- the frame of the pumping unit is considered, and not the entire electric pumping unit, consisting of a single-stage two-input centrifugal pump, a drive motor, the shafts of which are connected by a coupling, and a foundation (or mounting) frame with input supports under the "legs" of the pump and / or motor, therefore, not many features of the interaction of all the listed main components of the unit are taken into account.
- this unit belongs to the nuclear industry and, therefore, does not take into account the features of main oil electric pump units.
- this patent focuses on the particular task of improving the design of the elastic coupling between the shafts of the pump and the motor.
- An elastic coupling for a centrifugal pump installation is separately described in RF patent JSTa 2246047 (IPC F04D29 / 62, published February 10, 2005), however, the disadvantage of this coupling is its relatively low operational reliability, age and temperature aging of rubber elastic elements with a change in the elastic modulus of rubber when large fluctuations in temperature, especially in the presence of oil vapors and possible oil ingress when using the coupling in a main oil centrifugal pump installation.
- a centrifugal double-entry pump for pumping oil of the Sumy plant Nasosenergomash OJSC is known (Ukrainian patent 22403, IPC F04D 1/00, publ. 24.04.2007).
- the pump contains a housing, inside of which a rotor is mounted, on the shaft of which bearings, mechanical seals and a blade impeller are fixed, which together with the supply volume and the extended spiral housing outlet form a flow part.
- the housing is additionally equipped with a circulation system for lubricating and cooling the internal cavity of the mechanical seals, and the impeller, which is mounted on the shaft, is made of two halves.
- the presence of two halves of the impeller allows you to halve the vibrational characteristics of the pump by fixing the halves of the impeller on the rotor shaft with the rotation of one half relative to the other around the axis of the rotor by half the angle between the blades.
- the rotation of the halves is ensured by the corresponding arrangement of the grooves for the keys.
- the disadvantage of this pump is the presence of dowels and grooves for them, which weaken the rotor shaft and are stress concentrators, taking into account the principal presence of lateral clearances in the key connections, the presence of grooves on the shaft for the dowels, which contribute to the excitation of vibration of the pump rotor.
- the main general objective of the invention is the creation of a main oil pumping unit with improved technical and economic characteristics, specifically, with reduced noise and vibration, increased reliability, resource and efficiency through a complex of structural and technological improvements combined in a single inventive concept in all the basic components of the unit.
- the main electric pump unit contains a horizontal horizontal centrifugal single-stage double-entry pump, a drive motor, a coupling connecting their shafts, and a common or separate frame for attaching the pump and electric motor to of them
- the pump consists of a housing with two half-spiral inlets and a double-spiral outlet and a cover to of the housing, between the housing and the cover there is a rotor consisting of a shaft and a blade impeller, the impeller mounted on the shaft using a double-sided collet clamping device with tapered bushings and screws, and the mechanical seals of the rotor mounted on the shaft using single-sided collet clamping devices with conical bushings and screws, these clamping devices are a combination of two coaxial rings with conical working surfaces with the possibility of displacement of the rings with clamping screws along shaft axis relative to each other with a shaft clamp.
- the pump rotor is installed in the cantilever bearings of two types of cantilever bearings external to the pump body: a spherical double-row roller bearing that receives the axial load of the pump shaft and a “floating” toroidal roller bearing, both bearings are mounted on the shaft on tapered shrink sleeves with an axial section, all housing connections are fastened, including pairs of removable conical pins with threaded ends.
- screw seals can be used.
- the generatrix of the inner cylindrical surface of the inner ring of the clamping device is made curvilinear of the second order on the sections near the ends, at the edges of the ends of all conical bushings of high-strength steel alloys: collet devices and shrink bushings, these edges can be smoothed with micron accuracy .
- the pump casing has the same lateral half-spiral inlets of the double-sided pump inlet, consisting of an inlet supply channel, a spiral part and a confuser section before the flow inlet to the pump impeller and characterized by design and intermediate sections of the spiral supply part, the angle of the spiral part of the supply and the presence of a “tongue” of supply separating the fluid flows going through the spiral part and the inlet channel.
- Improved approaches have a design and intermediate sections of the spiral section reduced by 15..20% in terms of throughput, the angle of coverage of the spiral section of the supply and the tongue of a modified shape increased to 200 ... 210 °, gradually tapering from the periphery to the center.
- the pump and the electric motor of the electric pump unit are installed almost seamlessly with their “paws” through the supplied supports on a common or separate frames: the pump and electric motor are fixed to a common or separate frames using height-adjustable and self-adjusting angle-mounted high-precision supplied supports, mounting surfaces of the pump “paws” raised to the level of the common central axis of the pump inlet and outlet pipes, a compensating twin coupling with flexible disks is also used, while
- the supplied Nye bearing consists of three washers, two lower threaded washer are connected, allowing to change the height of the input support, middle and upper washers have the mating spherical surfaces of the same radius of curvature; all washers have a common axial hole for the mounting bolt with nut for final clamping of the “paw” to the frame with a bolt and nut through a common through hole; the two lower washers have non-through radial holes for the possibility of using levers when adjusting the height of the support.
- the coupling connecting the shafts of the pump and the motor is a compensating double disk coupling and consists of a combination of two identical couplings connected by an intermediate hollow shaft, in each coupling a flexible hardened steel disk (or a set (package) of disks) is installed for unloading discs in the couplings have spherical joints in the form of spherical double-row rolling bearings, each of the two couplings contains the same even the number of clamping fasteners of the sets of disks, the opposite directional bushings of the fasteners are located on the flanges of the coupling halves through one uniformly and uniformly radial distance from the common central axis of rotation of the couplings and shafts, and the oppositely directed clamping fasteners of the sets of flexible disks of both couplings are coaxial.
- the technical effect of the assembly method of the unit is achieved by the fact that the manufacturing process of high-precision and practically clearance-free assembly of the unit from the basic components consists of a sequence of the following methods: first, assembly of the pump itself, then assembly of the entire unit. Before assembling the pump in the molded pump housing and in the molded cover of the pump housing, baseline grinding of the seating surfaces of the “paws” of the pump housing and the planes of the connectors — the common horizontal plane of the housing and the cover and vertical mating planes around the holes for the rotor shaft for mounting the bearing assemblies — is performed.
- the pump rotor is assembled from the shaft, the impeller, and two shaped sleeves on the shaft participating in the formation of the pump flow path using a double-sided collet clamping connection with tapered bushings and screws and using a precision measuring device in the form of a pipe lengths for accurate location of the impeller on the shaft, then install and fasten the shaped bushings on both sides of the collet chuck. Then, the rotor is installed with the axial clearance adjustment rings previously mounted on its shaft in the pump housing without a cover and the clearances are aligned between the impeller and the rings with axial shaft fixing relative to the pump housing, for example, using technological gaskets.
- two bearing assemblies are separately assembled with a spherical double-row roller bearing that accepts axial load and with a toroidal roller bearing, "Floating" and therefore not perceiving axial load.
- This is followed by adjustment mounting and after this dismantling of the bearing assembly with a spherical double-row roller bearing on the rotor shaft and on the pump housing to ensure that the clearance between the mating planes of the bearing housing and the pump housing is practically zero due to a corresponding reduction in the thickness of the expansion ring.
- fixing process gaskets are removed from the axial clearances of the shaft relative to the casing.
- connection of the cover and the pump casing is preferably reliably and gaplessly sealed or sealed with a liquid gasket (anaerobic sealant), pending the completion of the complete polymerization of the sealant.
- the sealant is polymerized in the absence of air between the gapless metal surfaces, compressed by the forces of tightening the studs.
- the initial liquid monomer is transformed into a sealant polymer from compression force, but without air, for 1 ... 2 days and then reliably holds the joint seal under operating conditions of high pressure drops.
- the installation of the pump and electric motor on a common or separate frame with mountings on the frame is preferably carried out using adjustable high-precision feed legs and usually includes the following sequence of methods: installing a common frame or individual frames on the foundation, verifying the horizontal position of their supporting surfaces in two levels and final fixing of the frames on the foundation; a fitting installation of the pump and / or electric motor on a common frame or on separate frames on supplied supports; obtaining common through holes in the supports, “Paws” and corresponding mounting surfaces of the frame and pre-installation of mounting bolts in the obtained through holes, welded or flanged connection of pump nozzles with pipelines; adjustment and final installation of all supplied supports under the pump and electric motor with the simultaneous use of a laser device for accurate alignment of the alignment of the pump and electric shafts; final tightening of the mounting bolts of the supports; connecting coaxially exposed and spaced apart pump shafts and an electric motor by mounting a compensating twin disc clutch with an intermediate shaft.
- Fig. 3 is an isometric view of a modernized oil main pump
- Figure 4 is a General side section of the pump
- Figure 10 is a General longitudinal section of a compensating dual disk clutch between the shafts of the pump and the drive motor;
- FIG. 11 is a diagram of a modified semi-spiral pump inlet.
- molded case 7 with two half spiral inlets and double-spiral outlet and molded cover 8 of the pump housing (with a common horizontal plane of the connector along the common central plane of symmetry of the holes for pump rotor), pump rotor from balanced and machined shaft 9 and impeller 10, double-sided collet clamping device 1 1 impeller on the shaft, two shaped sleeves 12 on the shaft to form the pump flow part, mechanical seals 13, one-way collet clamping devices 14 mechanical seals on the shaft, two different rolling bearings: spherical double-row roller bearing 15 and toroidal roller bearing 16, tapered shrink sleeves 17.18 for bearings, tubular housings 19.20 bearing units in (console supports), lubrication of bearings and seals, sets of fasteners (screws, bolts, nuts, studs, removable tapered pins with threaded ends).
- a clamping element For a gapless strong connection of the impeller with the shaft, a clamping element is used, consisting of three main parts: a central ring into which identical side rings are pulled by the tightening force of the screws, while the conical surfaces of the rings are pressed against the conical surfaces of the ring. The central ring and side rings contact on conical surfaces.
- the connection is self-centering relative to the axis of rotation and is an easily mounted interference fit. The joint transmits significant torques and axial forces.
- the taper of the removable conical pins is small, as a rule, 1:50. To remove the pin, use its threaded end.
- the conical coupling sleeves of the rolling bearings are provided with an axial section to increase the bending flexibility of the sleeve body.
- the unit frame is best made from channels; according to engineering empirical recommendations, the channel size is approximately 0.1 of the largest overall frame size.
- the main technical design solutions that improve the specified characteristics of the unit, first of all, reduce vibration and noise of the unit, are: - the use of keyless keyless landing of the impeller on a smooth shaft,
- the main advantage of using collet chucks with tapered sleeves and screws is the complete replacement of the keyed connections, which means eliminating sources of dangerous stress concentrators on the rotor shaft, which is guaranteed to reduce vibration activity and increase the life of the pump rotor and the unit as a whole.
- the collet clamping device has no backlash, does not damage the surface of the shaft and hub, easy mounting and dismounting of the clamping connection.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
Description
Claims
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR112014013965-2A BR112014013965B1 (pt) | 2011-12-09 | 2012-12-05 | Cojunto de bomba de óleo elétrico de linha principal e método de montagem da mesma |
DK12855650.3T DK2789858T3 (en) | 2011-12-09 | 2012-12-05 | OIL PUMP UNIT FOR MAIN PIPE AND METHOD FOR ASSEMBLING THE SAME |
ES12855650.3T ES2691739T3 (es) | 2011-12-09 | 2012-12-05 | Conjunto de bomba de petróleo eléctrica de línea principal y método para ensamblar la misma |
MX2014006867A MX347244B (es) | 2011-12-09 | 2012-12-05 | Ensamble de bomba de petróleo con conexión eléctrica a la línea principal y método para ensamblar la misma. |
PL12855650T PL2789858T3 (pl) | 2011-12-09 | 2012-12-05 | Magistralny elektryczny agregat pompowy do ropy naftowej i metoda jego montażu |
EP12855650.3A EP2789858B1 (en) | 2011-12-09 | 2012-12-05 | Mainline electric oil pump assembly and method for assembling same |
CA2854767A CA2854767C (en) | 2011-12-09 | 2012-12-05 | Mainline electric oil pump assembly and method for assembling the same |
JP2014545851A JP5966017B2 (ja) | 2011-12-09 | 2012-12-05 | メインライン電動オイルポンプ組立体、および、同組立体を組み立てるための方法 |
US14/361,559 US9644638B2 (en) | 2011-12-09 | 2012-12-05 | Mainline electric oil pump assembly and method for assembling same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2011150131 | 2011-12-09 | ||
RU2011150131/06A RU2484305C1 (ru) | 2011-12-09 | 2011-12-09 | Магистральный нефтяной электронасосный агрегат и способ улучшения характеристик агрегата |
Publications (1)
Publication Number | Publication Date |
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WO2013085433A1 true WO2013085433A1 (ru) | 2013-06-13 |
Family
ID=48574672
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/RU2012/001025 WO2013085433A1 (ru) | 2011-12-09 | 2012-12-05 | Магистральный нефтяной электронасосный агрегат и способ сборки агрегата |
Country Status (11)
Country | Link |
---|---|
US (1) | US9644638B2 (ru) |
EP (1) | EP2789858B1 (ru) |
JP (1) | JP5966017B2 (ru) |
BR (1) | BR112014013965B1 (ru) |
CA (1) | CA2854767C (ru) |
DK (1) | DK2789858T3 (ru) |
ES (1) | ES2691739T3 (ru) |
MX (1) | MX347244B (ru) |
PL (1) | PL2789858T3 (ru) |
RU (1) | RU2484305C1 (ru) |
WO (1) | WO2013085433A1 (ru) |
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RU2702452C2 (ru) * | 2014-10-01 | 2019-10-08 | ДжиИ ОЙЛ ЭНД ГЭС ЭСП, ИНК. | Опора для двигателя в горизонтальной насосной системе, состоящая из сдвоенных плит |
EA029911B1 (ru) * | 2015-05-05 | 2018-05-31 | Открытое акционерное общество (ОАО) "Турбонасос" | Узел крепления рабочего колеса на валу |
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CN105222880B (zh) * | 2015-10-03 | 2018-04-06 | 上海大学 | 推力滚针轴承振动加速度测量仪 |
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RU2629307C1 (ru) * | 2016-09-27 | 2017-08-28 | Общество с ограниченной ответственностью "Нефтекамский машиностроительный завод" (ООО "НКМЗ") | Магистральный насос |
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- 2012-12-05 EP EP12855650.3A patent/EP2789858B1/en not_active Not-in-force
- 2012-12-05 ES ES12855650.3T patent/ES2691739T3/es active Active
- 2012-12-05 PL PL12855650T patent/PL2789858T3/pl unknown
- 2012-12-05 MX MX2014006867A patent/MX347244B/es active IP Right Grant
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- 2012-12-05 JP JP2014545851A patent/JP5966017B2/ja active Active
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Also Published As
Publication number | Publication date |
---|---|
EP2789858A4 (en) | 2015-09-02 |
JP2015500426A (ja) | 2015-01-05 |
EP2789858A1 (en) | 2014-10-15 |
MX347244B (es) | 2017-04-19 |
US9644638B2 (en) | 2017-05-09 |
EP2789858B1 (en) | 2018-07-18 |
BR112014013965B1 (pt) | 2021-04-06 |
BR112014013965A2 (pt) | 2018-05-22 |
RU2484305C1 (ru) | 2013-06-10 |
JP5966017B2 (ja) | 2016-08-10 |
PL2789858T3 (pl) | 2019-01-31 |
CA2854767A1 (en) | 2013-06-13 |
CA2854767C (en) | 2017-11-28 |
ES2691739T3 (es) | 2018-11-28 |
DK2789858T3 (en) | 2018-10-29 |
US20140328706A1 (en) | 2014-11-06 |
MX2014006867A (es) | 2014-07-14 |
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