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US3468259A - Axial relieving arrangement for impeller-type pumps - Google Patents

Axial relieving arrangement for impeller-type pumps Download PDF

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Publication number
US3468259A
US3468259A US680846A US3468259DA US3468259A US 3468259 A US3468259 A US 3468259A US 680846 A US680846 A US 680846A US 3468259D A US3468259D A US 3468259DA US 3468259 A US3468259 A US 3468259A
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US
United States
Prior art keywords
oil
pump
axial
relieving
pressure
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.)
Expired - Lifetime
Application number
US680846A
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English (en)
Inventor
Stanislaw Morzynski
Jerzy Kostyrko
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.)
Individual
Original Assignee
Individual
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 PL117322A external-priority patent/PL57681B1/pl
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3468259A publication Critical patent/US3468259A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F04D29/041—Axial thrust balancing
    • F04D29/0416—Axial thrust balancing balancing pistons

Definitions

  • An auxiliary oil pump of the relieving arrangement is driven directly from the pump shaft.
  • the space, through which the oil flows in acting against the relieving disk, is separated from the flow space of the pump by means of a packing.
  • the relieving arrangement is also equipped with a device furnishing protection against shifting of the shaft.
  • the invention relates to an arrangement for axial relief of impeller-type pumps, enabling equilibration of high axial forces, independently of the liquid being pumped.
  • axial slide bearings known in pump constructions as so-called relieving disks are employed in structural cooperation with the flow system of the pump, in which the Working medium is the liquid being pumped by the pump.
  • relieving disks are employed in structural cooperation with the flow system of the pump, in which the Working medium is the liquid being pumped by the pump.
  • the working medium is the liquid being pumped by the pump.
  • pumps provided with relieving disks for liquids contaminated with mechanical impurities, as the sliding surfaces are then subjected to rapid wear.
  • pumps of symmetrical hydraulically equilibrated flow systems or pumps provided with axial bearings forming separate members of the structure. Pumps of such a design are heavy and have large overall dimensions.
  • the invention consists essentially in application of an axial bearing completely relieved, in which the working.
  • FIG. 1 is a cross section of the delivery casing of the pump with members of the relieving arrangement
  • FIG. 2 is a similar view which shows a modification of the arrangement.
  • An oil of constant pressure, higher than that of the pumped liquid, is fed through a port 20' in the delivery pump casing H to a collector 1, wherefrom, through ports 21 in the collector, the oil flows out onto the sliding surfaces S of a packing 2 and further to the space a.
  • the outlet ports of the collector 1 are situated tangentially to the inner diameter of the collector, to provide swirling of the oil flowing out, necessary for regular operation of the packing 2.
  • the pressure of the oil in the space a is higher than that of the pumped liquid, to include the penetration of the pumped liquid (together with impurities therein) into the relieving system.
  • the packing 2 operates under a small pressure which is the difference between the pressure of the oil and the pressure of the pumped liquid.
  • an auxiliary bearing 6 which prevents excessive shifting of the pump shaft in the suction direction.
  • the bearing 6 is able to shift freely together with the pump shaft in the axial direction, and is opposed in the delivery direction by means of the spring 7.
  • a chamber d is formed between the flow space of the pump and the packing, through which liquid free from mechanical impurities flows, which impurities could damage the sliding surfaces of the packing.
  • the liquid flows to the chamber d through a port 23 in the delivery casing of the pump, parallel to the port 20 feeding the oil to the relieving system.
  • the pressure in the chamber d is somewhat lower than the pressure of the pumped liquid, owing to application of a threaded thrower 8.
  • the pump shaft is radially born in bushing 3 which is self-aligning on sleeve 9 on which is fitted the packing 2.
  • the difference of pressure in spaces a and b secures a suitable lubricating of the hearing.
  • the oil pump 10 is driven directly from the pump shaft by means of a flexible coupling.
  • Axial relieving apparatus for an impeller-type pump having a shaft with a slidable sealing means thereon for sealing the liquid being pumped said apparatus comprising means defining a first chamber around said sealing means, means for introducing a pressure fluid past said sealing means and into said first chamber, said pressure fluid being at a pressure higher than that of the liquid means for said shaft between said disc and said sealing being pumped to prevent the latter from impinging on said means, said bearing means and disc defining a second sealing means, a relieving disc on said shaft, and bearing chamber therebetween, said bearing means having at least one port providing communication between said chambers whereby the pressure fluid is throttled as it passes from said first to said second chambers to establish a pressure difference between said chambers which exerts an axial force on said shaft.
  • Apparatus as claimed in claim 1 wherein said means for introducing the pressure fluid into said space has tangential apertures to produce swirling of the pressure fluid.
  • Apparatus as claimed in claim 1 comprising means on said shaft for preventing major axial displacement thereof.
  • Apparatus as claimed in claim 3 wherein said means for preventing major axial displacement of the shaft comprises a bearing thereon and a spring biasing said bearing and thereby said shaft.
  • said pump comprises a housing having a cooling chamber and a reservoir for said pressure fluid, and an auxiliary pump driven by said shaft for circulating said pressure fluid.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Rotary Pumps (AREA)
US680846A 1966-11-12 1967-11-06 Axial relieving arrangement for impeller-type pumps Expired - Lifetime US3468259A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL117322A PL57681B1 (de) 1966-11-12

Publications (1)

Publication Number Publication Date
US3468259A true US3468259A (en) 1969-09-23

Family

ID=19949555

Family Applications (1)

Application Number Title Priority Date Filing Date
US680846A Expired - Lifetime US3468259A (en) 1966-11-12 1967-11-06 Axial relieving arrangement for impeller-type pumps

Country Status (5)

Country Link
US (1) US3468259A (de)
AT (1) AT280056B (de)
CH (1) CH501839A (de)
FR (1) FR1552051A (de)
GB (1) GB1211243A (de)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3775973A (en) * 1970-05-04 1973-12-04 P Hudson Combustion products pressure generators intermittent burner cycle and engines
US4159888A (en) * 1977-10-07 1979-07-03 General Motors Corporation Thrust balancing
US4268220A (en) * 1979-03-05 1981-05-19 General Motors Corporation Thrust balancing
US4270760A (en) * 1979-10-15 1981-06-02 Greiman Myrl H W Sealing assembly
US6182727B1 (en) * 1999-06-30 2001-02-06 Dana Corporation Rotary air coupling for tire inflation system
US6363985B1 (en) * 2000-04-18 2002-04-02 Spice Technology, Inc. Rotary air coupling for tire inflation system
US6568901B2 (en) * 1999-06-15 2003-05-27 Ksb Aktiengesellschaft Balancer for multistage centrifugal pumps
US20040151581A1 (en) * 2002-11-20 2004-08-05 Ksb Aktiengesellschaft Method and apparatus for early fault detection in centrifugal pumps
US20100239442A1 (en) * 2007-10-09 2010-09-23 Audun Grynning Protection system for subsea seawater injection pumps
CN102269177A (zh) * 2010-06-02 2011-12-07 中国石油化工集团公司 一种降低泵密封腔压力的方法
CN103696991A (zh) * 2013-12-11 2014-04-02 江苏大学 高压泵转子轴向力平衡装置
CN104265675A (zh) * 2014-10-08 2015-01-07 中国船舶重工集团公司第七0四研究所 双间隙高流阻平衡装置
US20160298638A1 (en) * 2013-11-21 2016-10-13 Ksb Aktiengesellschaft Load-Relieving Device
CN109424578A (zh) * 2017-08-23 2019-03-05 苏尔寿管理有限公司 具有提升装置的轴支承装置
US10400821B2 (en) * 2015-08-19 2019-09-03 Daido Metal Company Ltd. Vertical bearing device

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103115018B (zh) * 2013-02-28 2016-03-30 利欧集团股份有限公司 一种管线泵轴承组件的润滑及冷却机构
CN104806576A (zh) * 2015-04-28 2015-07-29 浙江科尔泵业股份有限公司 全工况运行平稳式大型切焦泵
US10513928B2 (en) * 2017-08-31 2019-12-24 Flowserve Management Company Axial thrust balancing device
CN108105164A (zh) * 2017-12-14 2018-06-01 中国航发沈阳发动机研究所 一种轴向力平衡装置
RU2693955C1 (ru) * 2018-08-20 2019-07-08 Публичное акционерное общество "Пролетарский завод" Насос
JP2022500592A (ja) * 2018-09-27 2022-01-04 カーエスベー ソシエタス ヨーロピア ウント コンパニー コマンディート ゲゼルシャフト アウフ アクチェンKSB SE & Co. KGaA 軸スラストが最適化される多段ポンプ
CN109139541A (zh) * 2018-09-30 2019-01-04 陕西科技大学 一种用于输送冷凝水的液体泵

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2349024A (en) * 1942-02-02 1944-05-16 Gasper L Waddell Stuffing box seal
US2835514A (en) * 1954-03-03 1958-05-20 Ingersoll Rand Co Rotary shaft seal
US2921533A (en) * 1956-03-30 1960-01-19 Worthington Corp Hydrodynamic and hydrostatic bearing
US3141677A (en) * 1960-11-28 1964-07-21 Worthington Corp Low leakage mechanical seal for high pressure pumps
US3213798A (en) * 1964-03-16 1965-10-26 Ingersoll Rand Co Sealing and cooling device for a pump shaft
US3370542A (en) * 1965-10-21 1968-02-27 Dresser Ind Temperature detection device
US3375014A (en) * 1966-02-09 1968-03-26 Worthington Corp Seal assembly
US3410565A (en) * 1966-07-27 1968-11-12 Worthington Corp Centrifugal and face contact seal

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2349024A (en) * 1942-02-02 1944-05-16 Gasper L Waddell Stuffing box seal
US2835514A (en) * 1954-03-03 1958-05-20 Ingersoll Rand Co Rotary shaft seal
US2921533A (en) * 1956-03-30 1960-01-19 Worthington Corp Hydrodynamic and hydrostatic bearing
US3141677A (en) * 1960-11-28 1964-07-21 Worthington Corp Low leakage mechanical seal for high pressure pumps
US3213798A (en) * 1964-03-16 1965-10-26 Ingersoll Rand Co Sealing and cooling device for a pump shaft
US3370542A (en) * 1965-10-21 1968-02-27 Dresser Ind Temperature detection device
US3375014A (en) * 1966-02-09 1968-03-26 Worthington Corp Seal assembly
US3410565A (en) * 1966-07-27 1968-11-12 Worthington Corp Centrifugal and face contact seal

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3775973A (en) * 1970-05-04 1973-12-04 P Hudson Combustion products pressure generators intermittent burner cycle and engines
US4159888A (en) * 1977-10-07 1979-07-03 General Motors Corporation Thrust balancing
US4268220A (en) * 1979-03-05 1981-05-19 General Motors Corporation Thrust balancing
US4270760A (en) * 1979-10-15 1981-06-02 Greiman Myrl H W Sealing assembly
US6568901B2 (en) * 1999-06-15 2003-05-27 Ksb Aktiengesellschaft Balancer for multistage centrifugal pumps
US6182727B1 (en) * 1999-06-30 2001-02-06 Dana Corporation Rotary air coupling for tire inflation system
US6363985B1 (en) * 2000-04-18 2002-04-02 Spice Technology, Inc. Rotary air coupling for tire inflation system
US20040151581A1 (en) * 2002-11-20 2004-08-05 Ksb Aktiengesellschaft Method and apparatus for early fault detection in centrifugal pumps
US6877947B2 (en) * 2002-11-20 2005-04-12 Ksb Aktiengesellschaft Method and apparatus for early fault detection in centrifugal pumps
US8556600B2 (en) 2007-10-09 2013-10-15 Aker Subsea As Protection system for subsea seawater injection pumps
US20100239442A1 (en) * 2007-10-09 2010-09-23 Audun Grynning Protection system for subsea seawater injection pumps
CN102269177A (zh) * 2010-06-02 2011-12-07 中国石油化工集团公司 一种降低泵密封腔压力的方法
CN102269177B (zh) * 2010-06-02 2015-09-23 中国石油化工集团公司 一种降低高压循环泵密封腔压力的方法
US20160298638A1 (en) * 2013-11-21 2016-10-13 Ksb Aktiengesellschaft Load-Relieving Device
US10094388B2 (en) * 2013-11-21 2018-10-09 Ksb Aktiengesellschaft Load-relieving device
CN103696991A (zh) * 2013-12-11 2014-04-02 江苏大学 高压泵转子轴向力平衡装置
CN103696991B (zh) * 2013-12-11 2017-10-27 江苏大学 高压泵转子轴向力平衡装置
CN104265675A (zh) * 2014-10-08 2015-01-07 中国船舶重工集团公司第七0四研究所 双间隙高流阻平衡装置
US10400821B2 (en) * 2015-08-19 2019-09-03 Daido Metal Company Ltd. Vertical bearing device
CN109424578A (zh) * 2017-08-23 2019-03-05 苏尔寿管理有限公司 具有提升装置的轴支承装置
US10989213B2 (en) * 2017-08-23 2021-04-27 Sulzer Management Ag Shaft bearing device with a lifting device
US11415142B2 (en) 2017-08-23 2022-08-16 Sulzer Management Ag Shaft bearing device with a lifting device

Also Published As

Publication number Publication date
AT280056B (de) 1970-03-25
CH501839A (fr) 1971-01-15
GB1211243A (en) 1970-11-04
FR1552051A (de) 1969-01-03

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