EP2626511A2 - Pompe à vis à broche double dans une construction à double flux - Google Patents

Pompe à vis à broche double dans une construction à double flux Download PDF

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Publication number
EP2626511A2
EP2626511A2 EP13000396.5A EP13000396A EP2626511A2 EP 2626511 A2 EP2626511 A2 EP 2626511A2 EP 13000396 A EP13000396 A EP 13000396A EP 2626511 A2 EP2626511 A2 EP 2626511A2
Authority
EP
European Patent Office
Prior art keywords
section
bearing
pump
gear
seal
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.)
Granted
Application number
EP13000396.5A
Other languages
German (de)
English (en)
Other versions
EP2626511B1 (fr
EP2626511A3 (fr
Inventor
Hans Jung
Weshen Christov
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jung Geraetebau GmbH and Co
Original Assignee
Jung Geraetebau GmbH and Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE201220000893 external-priority patent/DE202012000893U1/de
Priority claimed from DE201220000894 external-priority patent/DE202012000894U1/de
Application filed by Jung Geraetebau GmbH and Co filed Critical Jung Geraetebau GmbH and Co
Publication of EP2626511A2 publication Critical patent/EP2626511A2/fr
Publication of EP2626511A3 publication Critical patent/EP2626511A3/fr
Application granted granted Critical
Publication of EP2626511B1 publication Critical patent/EP2626511B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • 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
    • F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
    • F04C15/0034—Sealing arrangements in rotary-piston machines or pumps for other than the working fluid, i.e. the sealing arrangements are not between working chambers of the machine
    • 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
    • F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
    • F04C15/0034—Sealing arrangements in rotary-piston machines or pumps for other than the working fluid, i.e. the sealing arrangements are not between working chambers of the machine
    • F04C15/0038—Shaft sealings specially adapted for rotary-piston machines or pumps
    • 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
    • F04C15/0042—Systems for the equilibration of forces acting on the machines or pump
    • 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
    • F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
    • F04C15/0061—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
    • 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
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F04C2/084—Toothed wheels
    • 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
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C2/16—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
    • F04C2/165—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type having more than two rotary pistons with parallel axes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C17/00—Arrangements for drive of co-operating members, e.g. for rotary piston and casing
    • F01C17/02—Arrangements for drive of co-operating members, e.g. for rotary piston and casing of toothed-gearing type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/10—Outer members for co-operation with rotary pistons; Casings
    • 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
    • F04C2240/20—Rotors
    • 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
    • F04C2240/50—Bearings
    • F04C2240/52—Bearings for assemblies with supports on both sides
    • 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
    • F04C2240/60—Shafts
    • F04C2240/601—Shaft flexion

Definitions

  • the invention relates to a two-spindle screw pump in a double-flow design with a pump housing having a pump section, two bearing sections and at least one gear section with at least one gear housing, wherein the bearing sections and the pump section are designed separately, with a conveyor housing part as part of the pump section in which arranged on two shafts conveying screws are provided with flanks in a double-flow design, the conveyor screws on the shafts have a mecanic Vietnamese fashionr, the waves are stored on both sides in the bearing sections with bearings (external storage), a seal for sealing the bearing portion relative to the conveyor section is provided in the bearing section and the shafts extend at least on one side into the transmission section, with gears arranged on the shafts in the transmission section, by means of which the shafts are rotationally coupled
  • Such a pump is off DE 43 16 735 A1 known.
  • the structure of such externally mounted twin-screw, two-spindle screw pumps results in that the root diameter of the feed screw is greater than the seal diameter and this in turn is greater than the inner diameter of the outer bearing.
  • the shaft is suitably graded so that the diameter under the outer bearings is significantly smaller than the diameter in the middle of the shaft. The reason is that for the assembly of the conveying screws and the mechanical seals These are pushed over the bearing seats, and this is easily possible only with this structure.
  • a disadvantage of this structure is that the shaft in the region of the bearing has a significantly lower moment of resistance than in the middle of the shaft. This has a negative effect on the deflection of the shaft in the load / operating case and causes a limitation of the permissible pressure difference when using the pump, since a contact between the feed screw and the pump housing must be avoided.
  • the object of the invention is therefore to improve the design of the pump so that the limitation is reduced.
  • the object of the invention is achieved in that the inner diameter of the seal on both sides is greater than or equal to the root diameter of the conveyor screws, and / or that on both sides of the inner diameter of the bearing is greater than or equal to the inner diameter of the seal.
  • the effect is that the shaft in the region of the bearings has a greater resistance torque than in the middle and thus the deflection of the shaft is reduced / avoided in the load / operating case.
  • a further teaching of the invention provides that on at least one shaft side, a first bush is provided, which is arranged in the region of the seal and which has an outer diameter which corresponds to the inner diameter of the seal.
  • a bush is provided on at least one shaft side, which is arranged in the region of the bearing and which has an outer diameter which corresponds to the inner diameter of the bearing.
  • the shaft in the region of the bush has an outer diameter which is smaller than or equal to the root diameter and / or as the inner diameter of the seal. This makes it particularly easy to carry out the installation of the waves and to achieve the result provided by the solution according to the invention.
  • a further teaching of the invention provides that there is a hydraulic separation between the pump section and the bearing section, preferably via a mechanical seal, and / or that there is a spatial separation between the bearing section and the gear section.
  • a further teaching of the invention provides that the shaft is in operative connection with these arranged fastening element for establishing a holding connection between the shaft and gear, wherein the fastening element and the gear having corresponding bores, via the between the gear and the fastener a holding connection can be produced via a locking element.
  • the holes in the fastener are designed so that the gear and the fastener (and thus the shaft) are rotated against each other, so that a distance between the flanks of the conveyor screws (the backlash of the conveyor screws) is adjustable.
  • the fastening element has a bushing section for pushing onto the shaft, wherein the bushing section preferably has a receiving section for the gear wheel, and / or wherein the shaft and the bushing section have a groove for receiving a feather key for producing a rotationally effective connection between the shaft and fastener.
  • the holes in the fastener are provided as a radial slot in which the locking element in the inserted but not locked state is radially displaceable, and that the radial length of the slot is provided so that its end points at least with the points of contact the flanks of the conveyor screws match.
  • fastening element is provided with the oblong holes only on a shaft. This takes into account the fact that it has been found that it is sufficient to adjust only one shaft while the other shaft is mounted constantly.
  • Another teaching of the invention provides that the radial length of the elongated holes is longer than the radial distance of the contact points of the flanks of the conveyor screws. This makes it possible to compensate for any unilateral wear of the flanks by a corresponding displacement beyond the original end points addition.
  • a further teaching of the invention provides that on the gear portion of the pump housing, an opening is provided, that the opening provided with a detachable cover, that the opening is arranged so that the cover in the assembled state of the spindle pump is releasable, and that the gear compartment for Setting the backlash of the conveyor screws with the necessary tools is achievable.
  • Fig. 1 shows a sectional view of a spindle pump 10 according to the invention.
  • the spindle pump 10 has a housing 11 which has a pump section 12, a bearing section 13 and a gear section 14. These are separated spatially and hydraulically via a sealing portion 140 from each other.
  • the seal portion 140 has a slide seal 141 having an inner diameter 62.
  • the spindle pump 10 comprises a driven shaft 15 and a driven shaft 16.
  • a feed screw 17 and on the driven shaft 16 are arranged on the driven shaft 15 .
  • the conveyor screws 17, 18 each have a first screw portion 52 and a second screw portion 53, which are interconnected via a central portion 54.
  • the screw portions 52 and the screw portion 53 are respectively engaged for conveyance.
  • a needle bearing 19 and a roller bearing 20 are provided, so that the shafts are mounted in external storage outside the pump section 12.
  • the needle bearing has an inner diameter 63.
  • the shafts 15, 16 are provided to the right of the second screw portion 53 with a sealing portion 55 and a bearing portion 56. These are massively formed on the shaft 15, 16. Alternatively, these can also be pushed as sockets on the shaft.
  • a sealing portion 57 and a bearing portion 58 are also provided on the shafts 15, 16. These are arranged as a sealing bush 59 and as a bearing bush 60 on the respective shaft 15, 16.
  • the root diameter 61 is made smaller than the inner diameter 62 of the mechanical seal 141.
  • the inner diameter 63 of the needle bearing 19 is greater than the inner diameter 62 of the mechanical seal 141.
  • the outer diameters of the sealing bush 57 and the sealing portion 55 essentially correspond to the inner diameter 62 of the mechanical seal 141.
  • the outer diameter of the bearing bush 58 and the bearing portion 56 substantially correspond to the inner diameter 63 of the needle bearing 19.
  • the shaft is tapered (not shown) executed.
  • gear compartment 21 In the gear compartment 21 (see Fig. 2 ) are the shaft ends 22, 23.
  • the shaft end 22 of the driven shaft 15 extends out of the housing 11 and there has a connection 24 for a drive unit (not shown).
  • a gear 25 On the driven shaft 15 is a gear 25.
  • a gear 26 On the driven shaft, a gear 26 is arranged. The teeth of the gears 25, 26 are meshingly engaged.
  • a fastening element 27 is arranged on the shaft end 23.
  • the fastening element 27 has a bushing section 28 and a flange section 29.
  • the outside of the female portion 28 is at the same time receiving surface 30 for the gear 26.
  • a feather key 31 is inserted over the a Drehwirkitati between shaft 16 and fastener 27 is made.
  • a hexagonal screw 33 is screwed, with which a clamping plate 34 is screwed against a seat 35 on the fastening element 27.
  • the fastening element 27 is connected to the shaft end 23 in a locking manner.
  • the flange portion 29 has a bore 36.
  • the gear 26 has a corresponding bore 37, which can be designed as a through hole or as a hole.
  • a thread (not shown) is arranged in the bore 37.
  • a hexagonal screw 38 is screwed, whereby the flange portion 29 of the fastener 27 is locked to the gear 26.
  • Behind the bushing portion 28 of the fastener 27 is a spacer sleeve 39, which ensures that the gear 26 can not come into contact with the mounting screws 40 of the gear portion 14 with the bearing portion 13.
  • Fig. 3 is a plan view of the gear portion 14 without mounted lid (not shown) on the opening 42 shown.
  • the gear portion 14 in this case has a planar portion 50, in which around the opening 42 around holes 51 are arranged, which have a thread (not shown), in which the fastening screws (not shown) are screwed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
EP13000396.5A 2012-01-31 2013-01-28 Pompe à vis à broche double dans une construction à double flux Active EP2626511B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE201220000893 DE202012000893U1 (de) 2012-01-31 2012-01-31 Zweispindelige Schraubenspindelpumpe in einflutiger Bauweise
DE201220000894 DE202012000894U1 (de) 2012-01-31 2012-01-31 Zweispindelige Schraubenspindelpumpe in einflutiger Bauweise
DE102012005949A DE102012005949B4 (de) 2012-01-31 2012-03-26 Zweispindelige Schraubenspindelpumpe in zweiflutiger Bauweise

Publications (3)

Publication Number Publication Date
EP2626511A2 true EP2626511A2 (fr) 2013-08-14
EP2626511A3 EP2626511A3 (fr) 2015-11-18
EP2626511B1 EP2626511B1 (fr) 2020-07-29

Family

ID=47681605

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13000396.5A Active EP2626511B1 (fr) 2012-01-31 2013-01-28 Pompe à vis à broche double dans une construction à double flux

Country Status (4)

Country Link
US (1) US9080566B2 (fr)
EP (1) EP2626511B1 (fr)
DE (1) DE102012005949B4 (fr)
ES (1) ES2821525T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107202017A (zh) * 2016-03-18 2017-09-26 日立江森自控空调有限公司 旋转压缩机
CN109707624A (zh) * 2018-12-18 2019-05-03 江阴爱尔姆真空设备有限公司 一种分体组合式双螺杆泵

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202014010816U1 (de) 2014-08-11 2016-09-21 Jung & Co. Gerätebau GmbH Schraubenspindelpumpe mit Dampfsperre
US10704549B2 (en) * 2015-03-31 2020-07-07 Hitachi Industrial Equipment Systems Co., Ltd. Screw compressor having a discharging passage with enlarged cross section area
CN109667912A (zh) * 2018-12-20 2019-04-23 江阴爱尔姆真空设备有限公司 一种双螺杆泵用齿轮箱
CN114483576A (zh) * 2022-03-01 2022-05-13 绍兴威格隆泵业有限公司 外联式磁力驱动双螺杆泵
CN117404041B (zh) * 2023-12-14 2024-02-23 中国石油集团渤海钻探工程有限公司 一种注采气井口装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4316735A1 (de) 1993-05-19 1994-11-24 Bornemann J H Gmbh & Co Pumpverfahren zum Betreiben einer Multiphasen-Schraubenspindelpumpe und Pumpe

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DE1142108B (de) * 1956-10-12 1963-01-03 Licencia Talalmanyokat Schraubenpumpe
US3269328A (en) * 1964-09-28 1966-08-30 Laval Turbine Screw pumps or motors
CH613258A5 (fr) * 1975-09-24 1979-09-14 Suter Fa Alois
CA2058325A1 (fr) * 1990-12-24 1992-06-25 Mark E. Baran Pompes volumetriques
DE19502173C2 (de) * 1995-01-25 1997-07-03 Leistritz Ag Schraubenpumpe für drehrichtungsunabhängigen Betrieb
US6457950B1 (en) * 2000-05-04 2002-10-01 Flowserve Management Company Sealless multiphase screw-pump-and-motor package
GB2419920B (en) * 2004-11-08 2009-04-29 Automotive Motion Tech Ltd Pump
DE102005037118B3 (de) * 2005-08-03 2007-01-18 Leistritz Ag Mehrfach gelagerte zweiflutige Schraubenspindelpumpe
DE102009056218A1 (de) * 2009-11-28 2011-06-01 Robert Bosch Gmbh Schraubenspindelpumpe mit integriertem Druckbegrenzungsventil

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
DE4316735A1 (de) 1993-05-19 1994-11-24 Bornemann J H Gmbh & Co Pumpverfahren zum Betreiben einer Multiphasen-Schraubenspindelpumpe und Pumpe

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107202017A (zh) * 2016-03-18 2017-09-26 日立江森自控空调有限公司 旋转压缩机
CN107202017B (zh) * 2016-03-18 2019-10-25 日立江森自控空调有限公司 旋转压缩机
CN109707624A (zh) * 2018-12-18 2019-05-03 江阴爱尔姆真空设备有限公司 一种分体组合式双螺杆泵

Also Published As

Publication number Publication date
DE102012005949A1 (de) 2013-08-01
ES2821525T3 (es) 2021-04-26
US20130202473A1 (en) 2013-08-08
EP2626511B1 (fr) 2020-07-29
DE102012005949B4 (de) 2013-09-12
US9080566B2 (en) 2015-07-14
EP2626511A3 (fr) 2015-11-18

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