WO2008086575A1 - Pompe comprenant une structure spiralée hélicoïdale fixe et un arbre d'entraînement à fentes pouvant tourner dans celle-ci - Google Patents

Pompe comprenant une structure spiralée hélicoïdale fixe et un arbre d'entraînement à fentes pouvant tourner dans celle-ci Download PDF

Info

Publication number
WO2008086575A1
WO2008086575A1 PCT/AU2008/000059 AU2008000059W WO2008086575A1 WO 2008086575 A1 WO2008086575 A1 WO 2008086575A1 AU 2008000059 W AU2008000059 W AU 2008000059W WO 2008086575 A1 WO2008086575 A1 WO 2008086575A1
Authority
WO
WIPO (PCT)
Prior art keywords
pump
shaft
slots
grooves
cylindrical body
Prior art date
Application number
PCT/AU2008/000059
Other languages
English (en)
Inventor
Glenn Alexander Thompson
Original Assignee
Glenn Alexander Thompson
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 AU2007900251A external-priority patent/AU2007900251A0/en
Application filed by Glenn Alexander Thompson filed Critical Glenn Alexander Thompson
Publication of WO2008086575A1 publication Critical patent/WO2008086575A1/fr

Links

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
    • F04D3/00—Axial-flow pumps
    • F04D3/02—Axial-flow pumps of screw type
    • 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
    • F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
    • F04D29/688—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for liquid 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
    • F04C2240/00—Components
    • F04C2240/60—Shafts

Definitions

  • a pump having a stationary helical spiral flange and a slotted impeller shaft rotatable within
  • the present invention relates to pumps for low viscosity fluids such as water, and more particularly, to pumps for transfer of high volumes at relatively low pressures.
  • Axial flow, multistage pumps operating at relatively low pressure are typically used for raising large volumes of water from one level to another.
  • a typical application is where such a pump is inclined at an angle to draw water from a source, raise it above an embankment and deliver it to pipes or culverts for gravity feed to an irrigation channel for example.
  • These pumps may include a relatively long barrel body and incorporate several stages, each stage including an impeller driven by a common shaft extending the length of the barrel, with stators between each impeller. Water is drawn into the lowermost stage and "pushed" past the associated stator into the next stage where the next impeller pushes the water to the next stage and so forth until the water reaches a take-off pipe at the top of the barrel.
  • a pump for transfer of volumes of a low viscosity liguid from a source; said pump including a helical spiral flange fixed within a stationary cylindrical body; outer edges of said flange in contact with an inner surface of said cylindrical body; internal edges of said flange defining a central cylindrical passage coaxial with said cylindrical body; said pump further including a central impeller shaft rotatable within said central cylindrical passage; said shaft provided with a plurality of slots or grooves.
  • said impeller shaft extends substantially the length of said helical spiral flange.
  • said slots or grooves extend substantially the length of said spiral flange; said slots or grooves radially arranged around said impeller shaft.
  • said slots or grooves are parallel to an axis of said shaft.
  • trailing edges of said slots or grooves are substantially radial to an axis of said shaft.
  • said slots or grooves are in the form of a helical spiral about said shaft.
  • trailing edges of said slots or grooves are substantially normal to sloping upper surface of said helical spiral flange.
  • said slots or grooves formed as helical spirals about said shaft are opposite in direction or sense to direction or sense of said helical spiral flange.
  • each of said slots or grooves is provided with a series of baffles spaced along the length of each of said slots or grooves.
  • sense or direction of rotation of said shaft is in a same sense as that of said helical spiral flange; that is for a right hand spiral said shaft rotates in a clockwise direction when viewed from a lower end of said helical spiral flange.
  • said shaft is retained in bearings at both a lower end and at an upper end of said cylindrical body.
  • said shaft is driven into rotation by a drive motor mounted at an upper end of said cylindrical body; said drive motor coupled to an upper end of said shaft.
  • said cylindrical body is substantially open at a lower end of said cylindrical body.
  • said cylindrical body is closed at said upper end of said cylindrical body; a fluid delivery outlet provided in said cylindrical body at a point adjacent said upper end.
  • said lower end of said cylindrical body is immersed in said fluid when said pump is in use; said lower end immersed to a depth at which at least a portion of said lower end of said helical spiral flange is immersed in said fluid.
  • a method of pumping a fluid from a source of said fluid including the steps of:
  • said shaft is provided with grooves or slots extending substantially along a length of said shaft; said slots or grooves urging said fluid into centrifugal motion so as to drive said fluid along an upper surface of said stationary helical spiral flange.
  • impeller shaft is provided with radially spaced slots or grooves extending substantially for the length of said helical spiral flange.
  • Figure 1 is a partially sectioned side view of the principle components of a preferred embodiment of the pump of the invention
  • Figure 2 is an end view of the embodiment of Figure 1
  • Figures 3A and 3B are end views of preferred embodiments of an impeller shaft of the pump of Figure 1
  • Figure 4 is a side view of a second preferred arrangement of an impeller shaft and helical spiral flange of the pump of Figure 1
  • FIGs 5 and 6 show optional baffles along the slots or grooves of the impeller shaft arrangements of Figures 1 and 4,
  • Figure 7 is a side view of the pump of the embodiments of Figures 1 and 2 shown in an exemplary use installation.
  • pump 10 includes an outer cylindrical body 12 in which is located a fixed helical spiral flange 14.
  • the outer edges 16 of spiral flange 14 are in sealing contact with the inside surface 18 of outer cylindrical body 12.
  • the inside edges 20 of spiral flange 14 define a central hole or cylindrical passage 22 coaxial with the cylindrical body 12 as best seen in Figure 2.
  • An impeller shaft 24 extends through cylindrical passage 22 and is provided with a plurality of slots or grooves 26 (see also Figures 2 and 3). Slots or grooves 26 extend along shaft 24 substantially for the length of spiral flange 14. Cylindrical body 12 is substantially open at its lower end 28, and closed at its upper end 30 by bulkhead 32, with an extension of shaft 24 projecting through the bulkhead 32. An outlet 35 is provided in cylindrical body 12 adjacent closing bulkhead 32, to which may be connected a fluid delivery pipe 37 (as can be seen in Figure 7) .
  • Shaft 24 is rotatably supported within cylindrical passage 22 by bearings 36 and 38 at lower end 28 of cylindrical body 12, and at bulkhead 32 respectively.
  • a drive motor 40 is supported from the upper end 30 of cylindrical body 12 and is coupled to the shaft extension 34.
  • Drive motor 40 rotates shaft 24 in the same direction as the sense of the spiral flange 14. That is, in the case of a right hand wound spiral flange as shown in Figure 1, the shaft rotation must be clockwise when seen from the lower end 28 of cylindrical body 12 and as indicated by the arrow adjacent bulkhead 32 in Figure 1.
  • the slots or grooves 26 of shaft 24 are parallel to the axis of the shaft.
  • the slots or grooves may take the form of helical spirals 27 around shaft 24 as shown in an alternative assembly of the shaft and helical spiral flange 14 in Figure 4.
  • the sense of the spiral slots or grooves 26 of the shaft is opposite to the sense of the spiral flange 14. That is, if the spiral flange is a right hand wound spiral as is the one shown in Figures 1 and 4, the spiral slots or grooves of the shaft 14 must be left hand wound.
  • the shaft for this second embodiment also must be rotated in the direction of the sense of the spiral flange 14.
  • the slots or grooves of shaft 14 are provided with a series of interruptions or baffles 31; in effect dividing each slot or groove into a line or spiral of slots or grooves as shown in Figures 5 and 6 respectively.
  • At least the trailing side walls 29 of the slots or grooves are substantially radial to the shaft axis as shown in the examples of Figures 3A and 3B.
  • a trailing side wall is that side of a slot or groove which trails the leading side of the slot or groove as the shaft 24 rotates, as indicated by the rotation direction arrows of Figures 3A and 3B. It is the trailing side wall of a slot or groove which acts to drive water from the slot or groove onto the sloping ramp formed by the helical spiral flange.
  • Fluid is thus continuously forced upwards along the spiral surface of the flange while also rising and filling the adjacent portions of the slots or groove at each successive level reached, thereby receiving further impetus from the centrifugal forces generated by the rotating slots or grooves.
  • pump 10 may be used to transfer a liquid, typically water from a source 52 such as a reservoir and raise it over an embankment 56, depositing it in an irrigation channel 58 for example.
  • a liquid typically water from a source 52 such as a reservoir and raise it over an embankment 56, depositing it in an irrigation channel 58 for example.
  • a fluid pump consisting of a tube with a helical or spiral member along the full length of the inside of said tube and in fixed relation to said tube.
  • Such spiral or helical member having an axial hole along the full length of the spiral or helical member and said hole also axial to said tube.
  • a further member of the pump may be a shaft extending for the length of the tube and the helical member and the shaft having a plurality of slots or grooves along the full length of the shaft; the shaft being r ⁇ tatably located within the hole and in the helical or spiral member.
  • the pump Is provided with bearing means to locate the shaft in. relation to the tube and spiral or helical member such that the shaft is coaxial to the tube and spiral or helical member and is also provided with a drive means to rotate the shaft in relation to the tube and helical member.
  • the slots or grooves in the shaft may form a helix in opposite direction or sense to the direction or sense of the helix fixed to the tube, and in a further embodiment the slots or grooves may be provided with baffle members spaced along the length of the shaft.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

La présente invention concerne une pompe (10) utilisée pour transférer des volumes d'un liquide faiblement visqueux provenant d'une source, ladite pompe (10) comprenant une structure spiralée hélicoïdale (14) fixée dans un corps cylindrique fixe (12), des bords extérieurs (16) de ladite structure qui se trouvent en contact avec une surface interne (18) du corps cylindrique (12), des bords intérieurs (20) de ladite structure qui définissent un passage cylindrique central coaxial au corps cylindrique (12); ladite pompe (10) comprenant également un arbre d'entraînement central (24) qui peut tourner dans le passage cylindrique central, cet arbre étant formé avec une pluralité de fentes ou de rainures (26).
PCT/AU2008/000059 2007-01-19 2008-01-18 Pompe comprenant une structure spiralée hélicoïdale fixe et un arbre d'entraînement à fentes pouvant tourner dans celle-ci WO2008086575A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2007900251A AU2007900251A0 (en) 2007-01-19 Pump
AU2007900251 2007-01-19

Publications (1)

Publication Number Publication Date
WO2008086575A1 true WO2008086575A1 (fr) 2008-07-24

Family

ID=39635581

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2008/000059 WO2008086575A1 (fr) 2007-01-19 2008-01-18 Pompe comprenant une structure spiralée hélicoïdale fixe et un arbre d'entraînement à fentes pouvant tourner dans celle-ci

Country Status (1)

Country Link
WO (1) WO2008086575A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101725540B (zh) * 2009-12-13 2011-12-07 虞上海 石油焦粉变频输送泵
WO2014047619A2 (fr) * 2012-09-24 2014-03-27 Chris Rorres Procédés et appareil pour déplacer un fluide à l'aide d'une virure
CN115479170A (zh) * 2022-09-11 2022-12-16 江苏大学 一种可实现储热材料保温充装的快速接头

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US589532A (en) * 1897-09-07 Lifting or irrigating pump
US2256659A (en) * 1940-06-25 1941-09-23 Leo R Thrasher Deep well pump motor
US2479724A (en) * 1946-07-01 1949-08-23 Frank P Bucklein Pump
US4343394A (en) * 1980-06-23 1982-08-10 Addare Corp. Apparatus for handling fluent material
US4877368A (en) * 1988-11-08 1989-10-31 A. Ahlstrom Corporation Fluidizing centrifugal pump
US5154572A (en) * 1990-01-26 1992-10-13 Hitachi Koki Company Limited Vacuum pump with helically threaded cylinders
US6053303A (en) * 1998-01-21 2000-04-25 Wang; Chao-Yang Transporting articles
US6116851A (en) * 1997-07-16 2000-09-12 Fluid Equipment Development Company, Llc Channel-type pump
EP1101946A2 (fr) * 1999-11-19 2001-05-23 Capstone Turbine Corporation Compresseur/pompe à spirales croisées

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US589532A (en) * 1897-09-07 Lifting or irrigating pump
US2256659A (en) * 1940-06-25 1941-09-23 Leo R Thrasher Deep well pump motor
US2479724A (en) * 1946-07-01 1949-08-23 Frank P Bucklein Pump
US4343394A (en) * 1980-06-23 1982-08-10 Addare Corp. Apparatus for handling fluent material
US4877368A (en) * 1988-11-08 1989-10-31 A. Ahlstrom Corporation Fluidizing centrifugal pump
US5154572A (en) * 1990-01-26 1992-10-13 Hitachi Koki Company Limited Vacuum pump with helically threaded cylinders
US6116851A (en) * 1997-07-16 2000-09-12 Fluid Equipment Development Company, Llc Channel-type pump
US6053303A (en) * 1998-01-21 2000-04-25 Wang; Chao-Yang Transporting articles
EP1101946A2 (fr) * 1999-11-19 2001-05-23 Capstone Turbine Corporation Compresseur/pompe à spirales croisées

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101725540B (zh) * 2009-12-13 2011-12-07 虞上海 石油焦粉变频输送泵
WO2014047619A2 (fr) * 2012-09-24 2014-03-27 Chris Rorres Procédés et appareil pour déplacer un fluide à l'aide d'une virure
WO2014047619A3 (fr) * 2012-09-24 2015-07-16 Chris Rorres Procédés et appareil pour déplacer un fluide à l'aide d'une virure
US10030627B2 (en) 2012-09-24 2018-07-24 Chris Rorres Methods and apparatus for moving fluid using a strake
CN115479170A (zh) * 2022-09-11 2022-12-16 江苏大学 一种可实现储热材料保温充装的快速接头
CN115479170B (zh) * 2022-09-11 2023-11-07 江苏大学 一种可实现储热材料保温充装的快速接头

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