US3738782A - Centrifugal pump with concrete volute - Google Patents

Centrifugal pump with concrete volute Download PDF

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Publication number
US3738782A
US3738782A US00176929A US3738782DA US3738782A US 3738782 A US3738782 A US 3738782A US 00176929 A US00176929 A US 00176929A US 3738782D A US3738782D A US 3738782DA US 3738782 A US3738782 A US 3738782A
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United States
Prior art keywords
reservoir
suction inlet
fluid
volute
volute casing
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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
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US00176929A
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English (en)
Inventor
W Fraser
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Edison International Inc
Original Assignee
Worthington Corp
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Publication of US3738782A publication Critical patent/US3738782A/en
Assigned to STUDEBAKER-WORTHINGTON, INC. reassignment STUDEBAKER-WORTHINGTON, INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: WORTHINGTON PUMP INC.
Assigned to EDISON INTERNATONAL, INC. reassignment EDISON INTERNATONAL, INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: STUDEBAKER-WORTHINGTON, INC., A CORP. OF DE
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F25/00—Component parts of trickle coolers
    • 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
    • F04D29/4273—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps suction eyes
    • 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
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps
    • F04D29/448—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps bladed diffusers
    • 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
    • F04D29/606—Mounting in cavities
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
    • F28C1/00—Direct-contact trickle coolers, e.g. cooling towers
    • F28C1/12—Arrangements for preventing clogging by frost
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Definitions

  • the combined 3,024,730 3/1962 Towle 417/424 s an and trash rack may include vane means 3,532,445 10/1970 Scheffler, Jr 417/424 adjustable to guide or to prerotate the fluid delivered FOREIGN PATENTS 0R APPLICATIONS from the reservoir to the suction inlet of the volute for 558,595 1/1944 Great Britain 417 42'4 the pump 18 Claims, 9 Drawing Figures is f j as 7 as 65 m r 9 r14 *1 7 76 3 W w I w I!
  • the present invention recognizes in the manufacture of the reservoir that large quantities of reinforced concrete are poured in situ and takes advantage of this fact to reduce the cost of installation first by also making the volute casing of the main circulating pump of reinforced concrete and second utilizing a portion of the poured concrete to form the volute casing of the reservoir.
  • the concrete volute casing for the main circulat 'ing pump can be provided with a smooth surface as contrasted to the surfaces of the known cast iron or fabricated steel volutes of conventional main circulating pumps as are known to the prior art and these smooth surfaces will reduce fluid friction losses in the volute casing which will increase the efficiency of the main circulating pump by the same proportion as the reduction in fluid friction losses in the casing.
  • suction inlet for the volute casing is disposed to receive fluid from the reservoir downwardly by gravity flow' this permits the use of an in-' verted impeller in the volute casing which at all times will be completely submerged and thus require no priming means for start up.
  • a combined motor support, trash rack serves to provide a systematical flow pattern to the suction eye of the impeller-through the suction inlet for the concrete volute casing.
  • the overall structure permits each removal of the driving means the entire rotating pump assembly being adaptable for removal through the combined motor support and trash rack without dewatering the inlet channel or the concrete volute casing of the system.
  • the present invention covers a centrifugal or mix flow pump assembly for use with a concrete formed reservoir having a free standing body of fluid to be pumped from said reservoir comprising, concrete means forming a volute casing for said pump disposed adjacent to the lower portion of the reservoir, said concrete volute casing having a suction inlet communicating with said free standing body of fluid to receive the same by gravity flow and a discharge outlet for pumped fluid.
  • Bearing means is provided about the suction inlet of the volute casing to receive and rotatably mount a driven shaft which extends into said volute casing.
  • the driven shaft has a driving means connected to one end for rotating the shaft and an impeller fixedly connected to the end ofthe shaft remote from the driving means in said volute casing.
  • the impeller is disposed with the suction eye in communication with the suction inlet for the concrete volute casing whereby fluids to be pumped enters the suction eye of the impeller from the top or upper side thereof.
  • the present invention contemplates the use of a combined motor stand and trash rack disposed about the suction inlet for the volute casing and connected to the bottom of the reservoir so that in assembled position it will support said driving means in spaced relation to the suction eye and to the surface of the free standing body of water in the reservoir.
  • the combined stand and trash rack being provided with means forming flow passages therethrough to permit fluids from said reservoir to pass to the suction inlet of the concrete volute casing.
  • the means on said combined stand and trash rack for forming flow passages may be adjustable to prerotate the fluid flowing into the suction inlet of the concrete volute casing.
  • FIG. 1 is an exploded side view of a centrifugal pumping unit in accordance with the present invention.
  • FIG. 2 is an enlarged side elevation of the centrifugal pumping unit shown in FIG. 1 in assembled position partly in sections.
  • FIG. 3 is a horizontal section taken on line 3-3 of FIG. 2.
  • FIG. 4 is a horizontal section taken on line 4-4 of FIG. 2 showing one embodiment of the flow controlling vanes for the combined stand and trash rack.
  • FIG. 5 is a partial section taken on line 5-5 of FIG. 4.
  • FIG. 6 is a side view of another form of combined stand and trash rack.
  • FIG. 7 is a horizontal section taken on line 7-7 of FIG. 6.
  • FIG. 8 is-a side elevation of still another form of combined stand and trash rack.
  • FIG. 9 is a horizontal section taken on line 9-9 of FIG. 8.
  • FIGS. 1 and 2 show a centrifugal pump assembly generally designated 10, associated with a reservoir only a fragment of which is shown generally designated 11.
  • Reservoir 11 is preferably formed of poured reinforced concrete by conventional methods so as to provide a receptacle having a volume sufficient to hold fluid to be pumped for the purposes for which the reservoir will be used for example, a volume of water sufficient to provide a cooling water source for a large heat exchanger used in a power generating station to which the present invention is particularly applicable.
  • the reservoir 11 has a floor or bottom 12 and side walls 13.
  • the centrifugal pump assembly is vertically mounted to extend through the floor or bottom 12 of the reservoir 11 and is particularly associated with the reservoir 11 to utilize advantageously the fact that the reservoir is made of poured reinforced concrete in that the main casing generally designated forming the volute 21 of the centrifugal pump assembly 10 is also formed of the same reinforced concrete and thus can be poured and constructed simultaneously with the fabrication of the reservoir 11.
  • volute casing 20 in this manner not only reduces the cost of installation of a circulating pump of this type but in addition provides means to reduce fluid friction losses in that the inner wall 22 of the volute casing 20 can be made extremely smooth and can be coated as at 23 with compounds or materials for further reducing friction such as filled fluorocarbon resins, silicone compounds or other non-wetting or non-sticking materials.
  • FIGS. 1 and 2 show that in the formation of the main casing 20 forming the volute 21, a portion of the associated floor or bottom 12 of the reservoir forms the upper side of casing 20 and continuous therewith are the side walls 24 and the lower wall 25 which are provided with the desired shape to form the volute 21 and the discharge outlet 26 for the centrifugal pump assembly 10.
  • the arrangement will permit the formation of a suction inlet 27 for the volute casing 20 which opens through the floor or bottom 12 forming the upper or top side of the volute 21.
  • fluid in the reservoir 10 may pass freely through the floor or bottom 11 by gravity to maintain the volute 21 completely filled at all times or during operation will permit delivery by gravity flow to the suction inlet of the volute 21, of fluid to be pumped.
  • the inner surface 22 of the respective underside of the lower portion of the reservoir the side walls 24 and the bottom wall 25 is rendered as smooth as possible during formation by conventional concrete trowelling techniques and by the addition of a suitable coating material as above mentioned.
  • An annular connecting ring 28 lines the suction inlet 27 and is embedded in the concrete so that an annular connecting flange 29 thereon is disposed adjacent the upper side of the floor 12 for purposes which will appear clear hereinafter.
  • FIG. 2 a lower bearing 32, and an upper bearing 33 are shown in alignment with each other for rotatably mounting shaft 34.
  • Lower bearing 32 is disposed in a lower bearing holder 35 which is mounted on a bearing plate 36.
  • annular wearing ring supports 37 is disposed about the bearing holder 35 and spaced therefrom a sufficient distance so that the lower inner wall 38 of said annular wearing ring support 37 can coact with the lower outer wearing ring 39 connected at the back portion 40 of the impeller 30 which is disposed in the volute 21.
  • the hub 41 of the impeller 30 is fixedly connected to the shaft 24 between the lower bearing 32 and upper bearing 33, and thus will be rotated whenever shaft 34 is rotated by driving means generally designated 42 which is connected to the end of the shaft 34 remote from the impeller 30.
  • Driving means 42 is preferably en electric motor and is supported in spaced relation from the floor or bottom 11 of the reservoir and preferably above the surface of the fluid therein by a combined motor stand and trash rack generally designated 43 which is more fully described hereafter.
  • Upper bearing 33 is mounted in an upper bearing holder 44 which forms the central portion of a suction ball or mounting frame 45.
  • Strip like support members 46 are connected at one end to the upper bearing holder on central portion 44 and radiate laterally to connect with the funnel shaped portion 47 on the mounting frame 45 at the respective ends of the support member 45 remote from the end connected to the central portion 44.
  • Mounting frame 45 defines spaced openings as at 46 formed by the funnel shaped portion 47.
  • An upper flange 48 extends radially outward from the upper end of the funnel shaped portion 47 for mounting the suction bell or mounting frame 45 annular ring 49 fixedly embedded in the reinforced concrete about the suction inlet 27 at the point where the suction inlet 27 extends through the floor 11 of the reservoir as above described.
  • the mounting flange 27 will be connected to the annular connecting ring 28 by a plurality of circumferentially disposed threaded members 49 and is constructed so that in assembled position the spacing of the central position 44 of the mounting frame 45 will place the upper bearing in alignment with lower bearing 32.
  • a lower flange 50 extends radially outward from the lower end of the funnel shaped position 47 to permit a plurality of circumferentially disposed reinforcing plates 51 to be connected between the lower flange 50 and upper flange 48.
  • the upper outer wearing ring 52 Connected to lower flange 50 about the opening 46 formed by the funnel shaped portion 45 is the upper outer wearing ring 52 which connects with the upper inner wearing ring 43 about that portion at the top or upper end of the impeller 39 forming the suction eyes.
  • mounting frame 45 defines the spaced openings 46 fluid from the reservoir can easily pass through the openings 46 into the suction eye 31 of impeller 30. If impeller 30 is not rotating fluid will drop by gravity and pass through the impeller into the volute 21 and discharge outlet 26 until both the volute and discharge outlet are filled with fluid.
  • the support for the motor and trash rack may be advantageously combined into a single unit and this construction additionally will provide straightening vanes for forming a symetrical or rotating flow pattern to the suction eye 31 of impeller 30 as will be described hereinafter.
  • the combined motor support and trash rack 43 shown in FIGS. 1, 2, 3, 4 and 5 is a cylindically shaped member having a lower connecting member generally designated, 60 and upper connecting member generally designated 61 and a plurality of spaced circumferentially disposed vertical pipe member or straightening vanes 62 which are connected at their respective ends so as to hold the lower connecting member and upper connecting member 61 in predetermined spaced relation to each other-and at the same time form fluid flow passages 63 therebetween to permit fluid to pass from the reservoir 11 through openings 46 into the suction eye 31 of impeller 30.
  • Spacing of the upperconnecting members 60 and lower connecting member 61 will be a function of the depth of the fluid in the reservoir 11 the vertical dimension of the combined motor support and trash rack being such that the upper connecting member 61 will just be above the surface level of the fluid in the reservoir.
  • This in association with a spacer member 64 insures that the driving motor 42 will be disposed well above the surface and can be removely coupled to the driven shaft 34 as by a conventional coupling means 65.
  • the lower connecting member is L-shaped in cross section and includes a thin flat horizontally disposed circular ring 66 and a thin flat vertically disposed annular ring 67.
  • the annular ring 67 being welded to the pipe members or vanes 62 as is clearly shown in FIGS. 4 and 5 of the drawings.
  • the annular ring 66 is provided with a plurality of openings as at 68 which are circumferentially spaced to receive correspondingly spaced threaded members 69 which are mounted on a connecting ring 70 embedded in the floor 11 of the reservoir adjacent to and about the suction inlet at the point where it extends through the floor 11.
  • the combined motor support and trash rack 43 is removely connected to the threaded members 69 on the connecting ring 70 by means of nut members 71 so that it can be easily assembled or disassembled as may be required for maintainence of the reservoir or repair of the centrifugal pump assembly.
  • the pipe members or vanes 62 in the form of the invention shown in FIGS. 1 to 5 of the drawings are round in cross section and will be spaced from each other and placed in sufficient number about the combined motor stand and trash rack 42 to provide an adequate filter means for the debris and also to support the weight of the motor 42 which for the size of the main circulating pumps involved will be extremely heavy.
  • the upper connecting means 61 is constructed substantially identical to the lower member as above described and thus includes the thin flat horizontal annular ring 72 and the thin flat vertical annular member 73.
  • the thin flat horizontal member 72 similarly is also provided with a plurality of circumferentially spaced openings as at 74 to permit the upper connecting member 61 to be connected to one side of the spacer member 64 now to be described.
  • the spacer member 64 is a hollow cylindrical element having a lower flat horiziontal connecting flange 76 and an upper flat horizontal connecting flange 77 which are connected to each other by vertically disposed arcuate webs 78 and 79.
  • the arcuate webs 78 and 79 have their lateral edges in spaced relation to form openings as at 80 and 81 to facilitate access to the coupling member 65.
  • the lower connecting flange 76 will have a plurality of circumferentially spaced openings 77 which coincide with the corresponding spaced openings 74 of the upper connecting means 61 on the combined motor stand and trash rack 43 so that threaded means such as bolts 82 and nuts 83 can be passed therethrough to connect the lower connecting flange 76 of the spacer 64 to the upper connecting means 61 of the combined motor stand and trash rack during assembly of the elements of the centrifugal pump assembly 10.
  • FIGS. 6 and 7 show another form of combined motor stand and trash rack.
  • This form of the invention differs in that the rounded hollow vertically disposed vanes 62 are replaced by flat solid rods or vanes coupled with reinforcing members.
  • the combined motor support and trash rack generally designated 90 is shown to include a lower connecting means 91 and'upper connecting means 92 and the vertically disposed circumferentially spaced solid rods or vane members 93.
  • the flow passages 94 between the respective vane members 93 will permit fluid to pass from the reservoir through the openings 46 in the mounting frame 45 on into the suction eye 31 of the impeller 30.
  • vertical reinforcing buttresses 95 are also connected between the upper and lowe'r connecting members at intervals about the circumference of the combined motor stand and trash rack.
  • FIG. 8 Form of Combined Motor Stand and Trash Rack FIGS. 8 and 9 show still another form of combined motor stand and trash rack.
  • This form of the invention differs from the form of combined motor stand and trash rack shown in FIGS. 1 through 5 and FIGS. 6 and 7 in that the vertically disposed vane members are provided with a streamlined shape, are rotatable so that the flow path for fluid between the respective vanes can serve as a flow guide to prerotate the fluid being delivered from the reservoir to the suction eye of the impeller.
  • the form of combined motor stand and trash rack generally designated 100 is also shown as having a cylindrical shape. It includes a lower connecting member 101, an upper connecting member 102 and the vertically disposed pipe members 103 which are circumferentially spaced at approximately every 60 around the circumference of the combined motor stand and trash rack to hold the lower connecting member and the upper connecting member in spaced relation to each other, the length of the pipe members being predetermined in the same manner as has been described in the form of the invention shown in FIGS. 1 to 5 of the drawings.
  • the vane members 105 are connected between the lower connecting members and the upper 39 connecting member so that they are movable about their axis generally designated 107.
  • vane members have a streamlined shaped and accordingly can be angled to direct the flow of fluid through the flow channels 106 between the vane members.
  • vanes are disposed at an angle as indicated by the solid lines of the vanes as shown in FIGS. 8 and 9, then as the fluid passes from the reservoir through the flow passages 105 it will be prerotated in the given direction shown by the arrows thus the flow pattern of the fluid being delivered by gravity will be given a rotational characteristic which will permit the centrifugal pump assembly to operate at a lower net positive suction head then called for in the original design.
  • any conventional form of control could be established such as a worm and wheel design coupled with an annular connecting ring (not shown) to rotate the vane members either manually or by some automatic control means to any given angle that will provide the desired degree of prerotation for the given pump operation.
  • the unique technique of fabricating the volute casing of the centrifugal pump assembly of reinforced concrete as above described not only reduces the cost of installation but further permits a modification of the pump design first for continuous top delivery by gravity of fluid to be pumped as the suction inlet to the volute is disposed at the top of the volute casing and the impeller is inverted to permit the suction eye to coact with such suction inlet.
  • the trash rack can be provided with either stationary vanes for establishing a symetrical flow pattern to the suction inlet of the volute or movable vanes for inverting a degree of prerotating for the fluid as delivered to the suction inlet of the volute.
  • a centrifugal pump assembly for use with a reservoir formed from reinforced concrete or the like materials to contain a free standing volume of fluid to be pumped therefrom comprising:
  • A. means made of the same material as said reservoir forming a volute casing for said pump in a plane lower than the bottom of the reservoir,
  • volute casing means having a suction inlet communicating at the upper portion with the bottom of said reservoir and with said free standing volume of fluid therein, and a discharge outlet for pumped fluid
  • a centrifugal pump assembly as claimed in claim 1 including means forming a combined motor stand and trash rack connected at one end about the suction inlet of the volute casing, said combined motor stand and trash rack connected at the end remote from the suction inlet to said driving means to support said driving means in assembled position, and spaced vane means on said combined motor stand and trash rack forming flow passages therethrough to adjust the direction of flow of fluid passing from said reservoir to the suction inlet of the volute casing means.
  • centrifugal pump assembly as claimed in claim 2 including, spacer means between the combined motor stand and trash rack and the driving means.
  • the spacer means has an upper connecting flange and a lower connecting flange, acruate web means connecting said upper connecting flange to said lower connecting flange, said arcuate web means disposed in spaced relation to each other to form at least one opening for access to the point of connection between the driving means and the driven shaft.
  • A. means made of the same material as said reservoir forming a volute casing for said pump continuous with the formed reservoir and disposed adjacent to the lower portion of said reservoir,
  • volute casing means having a suction inlet communicating with said free standing volume of fluid in the reservoir to receive the same by gravity flow and a discharge outlet for passing pumped fluid from said volute casing means to any desired use
  • bearing support means forming said suction inlet for the volute casing means, and having means thereon for mounting at least one of said bearing means in assembled position
  • H. means forming a support for said driving motor means disposed to hold said driving motor means a spaced distance from the suction inlet for said volute casing,
  • the motor support is cylindrical in shape to permit the rotating parts of the pump to be mounted through the suction inlet and to be removed therethrough.
  • the motor support includes an upper connecting member and a lower connecting member, and the spaced vane means are of predetermined length and are connected to hold the upper connecting member and the lower connecting member in a given space relation as a function of the depth of the reservoir.
  • the spacer means includes:
  • said arcuate web means in space relation to form at least one opening for access to the point where the driving motor is connected to the driven shaft.
  • a combined motor stand and trash rack for a centrifugal pump assembly comprising:
  • said spaced vane means having a predetermined length to hold the upper connecting means a given spaced distance from the lower connecting means

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
US00176929A 1971-09-01 1971-09-01 Centrifugal pump with concrete volute Expired - Lifetime US3738782A (en)

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US17692971A 1971-09-01 1971-09-01

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US (1) US3738782A (enExample)
CA (1) CA964113A (enExample)
DE (1) DE2238724A1 (enExample)
FR (1) FR2149060A5 (enExample)
GB (1) GB1373039A (enExample)
IT (1) IT956813B (enExample)

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US3923418A (en) * 1974-12-23 1975-12-02 Allis Chalmers Hydraulic turbine installation and method of assembling the turbine headcover therein
US4245965A (en) * 1979-01-25 1981-01-20 Master Air Inc. Gas-handling apparatus
US5314306A (en) * 1992-04-02 1994-05-24 Ksb Aktiengesellschaft Frame for pump-motor assemblies
US5505840A (en) * 1994-08-31 1996-04-09 Caldwell; Dean Chlorinator-filter system for sewage treatment plants
WO1999047816A1 (de) * 1998-03-17 1999-09-23 Siemens Aktiengesellschaft Kühlwasserpumpe und verfahren zu deren herstellung
US6805539B2 (en) * 2000-01-27 2004-10-19 Siemens Aktiengesellschaft Plant building for an installation and method for operating a plant building
CN101358601B (zh) * 2007-08-02 2010-12-22 上海阿波罗机械股份有限公司 用于核电站的混凝土蜗壳海水循环泵
CN101943170A (zh) * 2010-09-30 2011-01-12 上海阿波罗机械制造有限公司 用于核电站的海水循环水泵
US20120228878A1 (en) * 2009-11-20 2012-09-13 Norman Perner Tidal Power Plant and Method for the Construction Thereof
CN102128558B (zh) * 2010-01-18 2013-05-29 上海法诺格风能科技有限公司 冷却塔
US20170224940A1 (en) * 2009-11-19 2017-08-10 Resmed Motor Technologies Inc. Blower
WO2019023095A1 (en) * 2017-07-25 2019-01-31 Circor Pumps North America, Llc. SUPPORT FLANGE PUMP CASING OF A SINGLE TENANT
CN114060289A (zh) * 2021-12-08 2022-02-18 上海阿波罗机械股份有限公司 一种用于核电站二次循环冷却水系统的循环水泵
US11274669B2 (en) * 2007-05-21 2022-03-15 Weir Minerals Australia Ltd. Relating to pumps

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DE3416324A1 (de) * 1984-05-03 1985-11-07 Klein, Schanzlin & Becker Ag, 6710 Frankenthal Tauchmotorpumpe
GB2195920A (en) * 1986-08-29 1988-04-20 Corrocoat Limited Coating internal surfaces of pumps
DE4041551A1 (de) * 1990-12-22 1992-06-25 Abs Pumpen Ag Verfahren zur vermeidung von grundwirbeln an pumpeneinlaeufen
JP3971018B2 (ja) 1998-02-24 2007-09-05 Ｓｍｃ株式会社 浸漬式ポンプ

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US1107591A (en) * 1913-05-17 1914-08-18 Olier Centrifugal Pump And Machine Company D Pump construction.
US1530569A (en) * 1920-09-08 1925-03-24 Moody Lewis Ferry Hydraulic pump
US1504737A (en) * 1921-07-01 1924-08-12 Allis Chalmers Mfg Co Hydraulic turbine
US1723254A (en) * 1926-12-06 1929-08-06 Morgan Smith S Co Hydraulic turbine
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US2295391A (en) * 1939-12-28 1942-09-08 Jr Augustus C Durdin Sewage treatment apparatus
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US3024730A (en) * 1960-06-24 1962-03-13 Worthington Corp Flow control means for a pumping station
US3407747A (en) * 1967-04-07 1968-10-29 Rule Marine Inc Mount means for pump apparatus
US3532445A (en) * 1968-09-20 1970-10-06 Westinghouse Electric Corp Multirange pump

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3923418A (en) * 1974-12-23 1975-12-02 Allis Chalmers Hydraulic turbine installation and method of assembling the turbine headcover therein
US4245965A (en) * 1979-01-25 1981-01-20 Master Air Inc. Gas-handling apparatus
US5314306A (en) * 1992-04-02 1994-05-24 Ksb Aktiengesellschaft Frame for pump-motor assemblies
US5505840A (en) * 1994-08-31 1996-04-09 Caldwell; Dean Chlorinator-filter system for sewage treatment plants
US5624574A (en) * 1994-08-31 1997-04-29 Caldwell; Dean Chlorinator-filter process for sewage treatment
WO1999047816A1 (de) * 1998-03-17 1999-09-23 Siemens Aktiengesellschaft Kühlwasserpumpe und verfahren zu deren herstellung
US6508625B1 (en) 1998-03-17 2003-01-21 Siemens Aktiengesellschaft Cooling-water pump and method for its production
US6805539B2 (en) * 2000-01-27 2004-10-19 Siemens Aktiengesellschaft Plant building for an installation and method for operating a plant building
US11274669B2 (en) * 2007-05-21 2022-03-15 Weir Minerals Australia Ltd. Relating to pumps
CN101358601B (zh) * 2007-08-02 2010-12-22 上海阿波罗机械股份有限公司 用于核电站的混凝土蜗壳海水循环泵
US20170224940A1 (en) * 2009-11-19 2017-08-10 Resmed Motor Technologies Inc. Blower
US10940280B2 (en) * 2009-11-19 2021-03-09 Resmed Motor Technologies Inc. Blower
US20120228878A1 (en) * 2009-11-20 2012-09-13 Norman Perner Tidal Power Plant and Method for the Construction Thereof
CN102128558B (zh) * 2010-01-18 2013-05-29 上海法诺格风能科技有限公司 冷却塔
CN101943170A (zh) * 2010-09-30 2011-01-12 上海阿波罗机械制造有限公司 用于核电站的海水循环水泵
WO2019023095A1 (en) * 2017-07-25 2019-01-31 Circor Pumps North America, Llc. SUPPORT FLANGE PUMP CASING OF A SINGLE TENANT
US11365745B2 (en) 2017-07-25 2022-06-21 Circor Pumps North America, Llc. Pump casing with integral support flange
CN114060289A (zh) * 2021-12-08 2022-02-18 上海阿波罗机械股份有限公司 一种用于核电站二次循环冷却水系统的循环水泵

Also Published As

Publication number Publication date
DE2238724A1 (de) 1973-03-08
GB1373039A (en) 1974-11-06
FR2149060A5 (enExample) 1973-03-23
CA964113A (en) 1975-03-11
IT956813B (it) 1973-10-10

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