US1945759A - Rotary gas pump - Google Patents

Rotary gas pump Download PDF

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Publication number
US1945759A
US1945759A US697220A US69722033A US1945759A US 1945759 A US1945759 A US 1945759A US 697220 A US697220 A US 697220A US 69722033 A US69722033 A US 69722033A US 1945759 A US1945759 A US 1945759A
Authority
US
United States
Prior art keywords
casing
impeller
pump
liquid
outlet
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
US697220A
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English (en)
Inventor
Sim James
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.)
Weir Group PLC
Original Assignee
G&J Weir Ltd
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
Application filed by G&J Weir Ltd filed Critical G&J Weir Ltd
Application granted granted Critical
Publication of US1945759A publication Critical patent/US1945759A/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
    • F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D1/12—Pumps with scoops or like paring members protruding in the fluid circulating in a bowl
    • 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
    • F04C19/00—Rotary-piston pumps with fluid ring or the like, specially adapted for elastic fluids
    • F04C19/002—Rotary-piston pumps with fluid ring or the like, specially adapted for elastic fluids with rotating outer members

Definitions

  • This invention relates to gas pumps of the liquid-ring type comprising a rotary impeller having intervane cells which are alternately emptied of, and filled with, liquid in each rotation of the 5 impeller, whereby to set up pumping action which withdraws the gas or air and vapor from a vessel to be exhausted and delivers the same to atmosphere.
  • the pump casing rotates with the impeller.
  • Part of the periphery of the impeller is shrouded, and a tubular scoop within the casing, having an inlet for liquid located at or near the 15 periphery of the casing, has an outlet directed into the shrouded side of the impeller, while a pipe structure extending axially of the casing is provided with gas inlet and outlet ports communicating with the impeller eye.
  • the liquid-ring gas pump shown comprises a cylindrical pump casing 1 mounted for rotation about a vertical axis and penetrated axially by a fixedpipe 2 pr sen in at its lower end inlet and outlet passages 3, 4, respectively, provided at their lower ends with diametrically opposed ports 5, 6 respectively, located in the plane of rotation of a vaned impeller '7.
  • a fixed disc 8 located within the casing 1 and forming a covering wall for the impeller 7 is provided with a depending arcuate 13 to which the impeller '7 is attached and from which depends a central boss 14 coupled to the armature shaft 15 of a driving motor disposed within a casing 16 surmounted by the pump.
  • a cover 17 detachably fitted to the casing 1 presents a hollow trunnion 18 penetrated by the pipe 2 and journalled in a roller bearing 19 mounted in a cover 20 applied to a stationary casing 21 surrounding the pump casing 1 and open to the atmosphere.
  • the disc 8 is unitary with a central boss 22 surrounding and fixed to the inner end of the pipe 2 and provided with ports 5, 6 registering, respectively, with the ports 5, 6.
  • a downward extension 23 of the boss 22 is centered in a bearing 24 fitted into the boss 14.
  • the lower end portion of the pipe 2 is provided with a diametral partition 25 separating the inlet and outlet passages 3, 4, the passage 3 being continuous with the upper portion of the pipe which merges at its upper end into an inlet branch 26.
  • the outlet passage 4 communicates with the interior of the casing 21, i. e., with the atmosphere, by way of ports 27, 28 formed, respectively, in the pipe 2 and in the pump casing cover 17, the port 28 being located within the inner periphery of the liquid ring.
  • the inlet passage 3 communicates by way of the ports 5, 5' with the unshrouded side of the impeller 7 and the outlet passage 4 communicates by way of the ports 6, 6' with the shrouded side of the impeller 7.
  • the pipe 2 is integral with a flange 29 bolted to the cover 20.
  • Make-up sealing liquid is supplied to the pump casing 1 through a branch 30 on the upper end of the pipe 2, the pump casing 1 being initially primed with sealing liquid by way of a normally plugged orifice 30' in the upper end of the pipe 2. Excess sealing liquid is entrained by the discharged gas and discharged therewith through the port 28, being trapped in an annular gutterv 31 within the casing 21 whence it is drained away by way of a drain connection32. 10
  • the shroud flange 9 and the ported pipe 2 function, in effect, as valves which open and close the intervane cells in the rotation of the impeller. Liquid in those cells unshrouded by the flange 9 recedes centrifugally from the centre outwards and thus exercises suction effect on the port 5, passage 3, and inlet 26. As the cells pass within the confines of the shroud flange 9, they receive liquid from the scoop 10 through the spiral port 12 whereby the gas within the cells is compressed towards the centre of the impeller and finally discharged through the port 6, passage 4, and ports 2'7, 28, to atmosphere. As will be evident, the arrangement is such that the impeller cells are filled with and emptied of liquid in each rotation of the impeller.
  • a liquid-ring gas pump comprising a rotary pump casing, a vaned impeller mounted within and rotatable with said casing, said impeller having a central eye, stationary means shrouding part of the periphery of said impeller, a stationary tubular scoop within said casing, said scoop having an inlet for liquid located near the periphery of said casing and an outlet directed into the shrouded part of said impeller, and a stationary pipe structure extending axially of said casing and provided with gas inlet and outlet ports communicating with said eye.
  • a liquid-ring gas pump as claimed in claim 1 in which the inner end portion of the pipe structure is provided with an internal partition defining an inlet passage and an outlet passage, said inlet passage being continuous with the outer end portion of the pipe and said outlet passage merg'- ing into an outlet port communicating with the interior of the pump casing, said pump casing being provided with an outlet port to atmosphere.
  • a liquid-ring gas pump as claimed in claim 1 in which the shrouding means is presented by a flanged disc having a slot forming the scoop outlet, said slot so disposed that the intervane cells of the impeller passing said slot are progressively filled with liquid radially inwards.
  • a liquid-ring gas pump as claimed in claim 1 in which one end wall of the pump casing is coupled to a driving shaft and the other end wall presents a hollow trunnion penetrated by the pipe structure and a stationary outer casing in which said pipe structure is journalled, said outer casing being open to atmosphere.
  • a liquid-ring gas pump as claimed in claim 1 in which the pump casing is enclosed in a stationary outer casing formed internally with an annular gutter adapted to receive excess sealing liquid discharged from the pump casing and fitted with a drain outlet.
  • a liquid-ring gas pump as claimed in claim 1 in which he shrouding means is presented by a flanged disc unitary with a ported boss attached to the inner end of the pipe structure and presenting a journal extension centred in a bearing mounted in the adjacent end wall of the pump casing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
US697220A 1932-11-16 1933-11-08 Rotary gas pump Expired - Lifetime US1945759A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB32367/32A GB399665A (en) 1932-11-16 1932-11-16 Improvements in rotary gas pumps

Publications (1)

Publication Number Publication Date
US1945759A true US1945759A (en) 1934-02-06

Family

ID=10337511

Family Applications (1)

Application Number Title Priority Date Filing Date
US697220A Expired - Lifetime US1945759A (en) 1932-11-16 1933-11-08 Rotary gas pump

Country Status (5)

Country Link
US (1) US1945759A (cs)
DE (1) DE612017C (cs)
FR (1) FR763765A (cs)
GB (1) GB399665A (cs)
NL (1) NL34369C (cs)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3484038A (en) * 1967-05-11 1969-12-16 Energy Technology Inc Liquid ring mechanism and method
US3817659A (en) * 1973-03-19 1974-06-18 Kobe Inc Pitot pump with jet pump charging system
US4045145A (en) * 1975-12-19 1977-08-30 Kobe, Inc. Pitot pump with turbulence elimination
US4332521A (en) * 1980-02-11 1982-06-01 Kobe, Inc. High speed jet rotating casing apparatus
US4596511A (en) * 1984-06-05 1986-06-24 Eddy Pump Corporation Eddy pump
WO1988005132A1 (en) * 1986-12-24 1988-07-14 Eddy Pump Corporation Improved pump construction
US4776753A (en) * 1986-10-28 1988-10-11 Eddy Pump Corporation Method of and apparatus for pumping viscous fluids
US4815929A (en) * 1984-06-05 1989-03-28 Eddy Pump Corporation Eddy pump
WO2015058741A1 (de) * 2013-10-21 2015-04-30 Asm Dimatec Deutschland Gmbh Staurohrfördereinrichtung sowie zentrifuge zum trennen von flüssigkeiten mit einem rotor und zumindest einem staurohr
US20160017887A1 (en) * 2014-06-25 2016-01-21 Envirotech Pumpsystems, Inc. Pressure reducing rotor assembly for a pump

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3093080A (en) * 1961-03-15 1963-06-11 Tarifa Carlos Sauchez Hydraulic pumps
US3395854A (en) * 1965-06-10 1968-08-06 Energy Technolgy Inc Compressor
DE3408633A1 (de) * 1984-03-09 1985-09-19 Manfred Dr. 8060 Dachau Eckert Prinzip und anlage fuer isotherme verdichtung von gasen und daempfen
DE3525136A1 (de) * 1984-03-09 1987-01-15 Heinz Groenert Prinzip und anlage zur isothermen verdichtung und isothermen expansion von gasen und daempfen
DE3546779C2 (en) * 1985-07-13 1991-05-29 Heinz 8089 Emmering De Groenert Spiral compressor with near-isothermic compression
GB2217392B (en) * 1988-04-19 1991-05-01 Plessey Co Plc Improvements relating to gas and/or vapour compressors
US7488158B2 (en) 2002-11-13 2009-02-10 Deka Products Limited Partnership Fluid transfer using devices with rotatable housings
KR101299747B1 (ko) 2002-11-13 2013-08-23 데카 프로덕츠 리미티드 파트너쉽 가압 증기 사이클 액체 증류
US8069676B2 (en) 2002-11-13 2011-12-06 Deka Products Limited Partnership Water vapor distillation apparatus, method and system
US7597784B2 (en) 2002-11-13 2009-10-06 Deka Products Limited Partnership Pressurized vapor cycle liquid distillation
US8511105B2 (en) 2002-11-13 2013-08-20 Deka Products Limited Partnership Water vending apparatus
US11826681B2 (en) 2006-06-30 2023-11-28 Deka Products Limited Partneship Water vapor distillation apparatus, method and system
EP2158161B1 (en) 2007-06-07 2020-04-01 DEKA Products Limited Partnership Fluid vapor distillation apparatus
US11884555B2 (en) 2007-06-07 2024-01-30 Deka Products Limited Partnership Water vapor distillation apparatus, method and system
RU2365789C1 (ru) * 2008-02-04 2009-08-27 Государственное образовательное учреждение высшего профессионального образования "Орловский государственный технический университет" (ОрелГТУ) Моноблочный черпаковый электронасос
MX2011001778A (es) 2008-08-15 2011-05-10 Deka Products Lp Aparato expendedor de agua.
WO2014018896A1 (en) 2012-07-27 2014-01-30 Deka Products Limited Partnership Control of conductivity in product water outlet for evaporation apparatus

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3484038A (en) * 1967-05-11 1969-12-16 Energy Technology Inc Liquid ring mechanism and method
US3817659A (en) * 1973-03-19 1974-06-18 Kobe Inc Pitot pump with jet pump charging system
US4045145A (en) * 1975-12-19 1977-08-30 Kobe, Inc. Pitot pump with turbulence elimination
US4332521A (en) * 1980-02-11 1982-06-01 Kobe, Inc. High speed jet rotating casing apparatus
US4596511A (en) * 1984-06-05 1986-06-24 Eddy Pump Corporation Eddy pump
US4815929A (en) * 1984-06-05 1989-03-28 Eddy Pump Corporation Eddy pump
US4776753A (en) * 1986-10-28 1988-10-11 Eddy Pump Corporation Method of and apparatus for pumping viscous fluids
US4792275A (en) * 1986-12-24 1988-12-20 Eddy Pump Corporation Pump construction
WO1988005132A1 (en) * 1986-12-24 1988-07-14 Eddy Pump Corporation Improved pump construction
WO2015058741A1 (de) * 2013-10-21 2015-04-30 Asm Dimatec Deutschland Gmbh Staurohrfördereinrichtung sowie zentrifuge zum trennen von flüssigkeiten mit einem rotor und zumindest einem staurohr
US20160017887A1 (en) * 2014-06-25 2016-01-21 Envirotech Pumpsystems, Inc. Pressure reducing rotor assembly for a pump
CN106460849A (zh) * 2014-06-25 2017-02-22 环境技术泵系统股份有限公司 用于泵的减压转子组件
US9719516B2 (en) * 2014-06-25 2017-08-01 Envirotech Pumpsystems, Inc. Pressure reducing rotor assembly for a pump
US10280925B2 (en) 2014-06-25 2019-05-07 Envirotech Pumpsystems, Inc. Pressure reducing rotor assembly for a pump
CN106460849B (zh) * 2014-06-25 2019-05-07 环境技术泵系统股份有限公司 用于泵的减压转子组件

Also Published As

Publication number Publication date
DE612017C (de) 1935-04-11
FR763765A (fr) 1934-05-07
GB399665A (en) 1933-10-12
NL34369C (cs) 1934-11-17

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