EP0247459A1 - Pressure-feeding apparatus - Google Patents

Pressure-feeding apparatus Download PDF

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Publication number
EP0247459A1
EP0247459A1 EP87107053A EP87107053A EP0247459A1 EP 0247459 A1 EP0247459 A1 EP 0247459A1 EP 87107053 A EP87107053 A EP 87107053A EP 87107053 A EP87107053 A EP 87107053A EP 0247459 A1 EP0247459 A1 EP 0247459A1
Authority
EP
European Patent Office
Prior art keywords
pressure
oil pressure
oil
feeding apparatus
sides
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.)
Withdrawn
Application number
EP87107053A
Other languages
German (de)
English (en)
French (fr)
Inventor
Hoya Takeshi
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
Application filed by Individual filed Critical Individual
Publication of EP0247459A1 publication Critical patent/EP0247459A1/en
Withdrawn legal-status Critical Current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
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F04B43/06—Pumps having fluid drive
    • F04B43/067—Pumps having fluid drive the fluid being actuated directly by a piston
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
    • F04B9/109—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers
    • F04B9/111—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers with two mechanically connected pumping members
    • F04B9/113—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers with two mechanically connected pumping members reciprocating movement of the pumping members being obtained by a double-acting liquid motor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/0009—Special features
    • F04B43/0054—Special features particularities of the flexible members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves

Definitions

  • the technique disclosed herein relates to a technical. field of the construction of pressure-feeding apparatuses for pressure-feeding a slurry or the like to a solid-liquid separator such as a filter press.
  • a pressure-feeding apparatus main body having a swelling type flexible membrane in place of a mere diaphragm pump has been developed and put into practical use as disclosed in many patent and utility model applications filed by the present Applicant.
  • An oil pressure system pressure-feeding apparatus to be used in combination with such a pressure-feeding apparatus main body has been developed and put into practical use, too.
  • an oil pressure system pressure-feeding apparatus is great in size and is installed fixedly.
  • Pressure-feeding apparatuses to be connected to the. pressure-feeding apparatus main body are mostly of an oil pressure cylinder type but involve the problem that they need a complicated controlling apparatus.when the initial stroke of the piston of the oil pressure cylinder is to be set at the initial stage. As a resut, although they are portable, they are expensive and management control. and maintenance are complicated.
  • the present invention is directed to provide an excellent pressure-feeding apparatus which is compact in construction, can be set easily at the initial stage, employs a closed circuit for an oil pressure. circuit, has less oil leakage, can be easily connected and disconnected..to and from the pressure-feeding apparatus main body and is advantageous for the field of fluid technique.
  • Reference numeral 1 represents a pressure-feeding apparatus that constitutes.the gist of the present invention and is adapted to be connectable to pressure-feeding apparatus main bodies 2 disclosed in many prior inventions and devices proposed by the Applicant of the present invention.
  • a swelling type flexible membrane 3 made of rubber is disposed inside the barrel of each pressure-feeding apparatus main body 2 and defines a slurry chamber 4 on the swelling side.
  • This slurry chamber 4 is selectively connected to a filter pressure 9 by a three-way changeover valve 5 through a passage 6, a slurry tank 8 and a passage 7 so that the slurry chambers 4 on both sides alternately suck and.pressure-feed the slurry.
  • a support 10 which is slidable and expands and contracts the flexible membrane 3 is defined on the side opposite to the swelling side of the flexible membrane inside each pressure-feeding apparatus main body 2 and is connected to the pressure-feeding apparatus 1 through a passage 11.
  • a pair of partitions 15, 15 are disposed between covers 14, 14 on both sides of the barrel 13 of an oil pressure cylinder 12 in such a manner as to separate a center oil pressure chamber 16 and oil pressure chambers 17, 17 on both sides from one another.
  • a piston 18 is slidably disposed in each of these oil pressure chambers 16, 17, 17 and is connected integrally to each other through one rod 19 which is inserted through the partitions 15, 15 through respective seals.
  • the piston 18 separates the center oil pressure chamber 16 from the pressure chambers 20, 20.
  • Each of the oil pressure chambers.17, 17 on both sides is divided into an inner oil chamber 21 and an outer oil pressure chamber 22 and the inner oil.chamber 21 is communicated with a bypass passage 24 through an opening 23 that is bored on the partition 15.
  • the outer pressure.chamber 22 of each of the oil pressure chambers 17 on both sides is connected from the opening 25 to an oil tank 28 by a passage 27 that has a switch valve 26 such as an electromagnetic valve.
  • the pressure chamber 22 of each of the oil pressure chambers 14 on both sides is removably connected to the oil pressure passage 11 of the pressure-feeding apparatus main body 2 by a coupling 31 through an oil pressure passage 30 having a switch valve 29 sucn as an electromagnetic valve.
  • the pressure chambers 20, 20 on both sides of the center oil pressure chamber 16 are communicated with oil pressure passages 33, 33 through ports 32, 32, respectively, and from thence with an oil pressure passage 35. through a changeover valve 34 and with the oil tank 28 through an oil pressure pump 36.
  • predetermined stroke sensors 37, 37 are disposed on the pair of partitions 15, 15.
  • Reference numeral 37 represents a predetermined controlling apparatus.
  • This controlling apparatus 37 is connected to the sensor 38 for the flexible membrane 3 of each pressure-feeding apparatus main body 2, the sensor 38' for the piston 18 disposed on the partition 15 of each oil pressure cylinder 12, each switch valve 26, 29 such as. the electromagnetic valve, the switch valve 5 and the switch valve 34 by respective cables.in order. to control them in a predetermined manner.
  • the mechanical portion of the pressure-feeding apparatus represented by two-dot- chain line is mounted to and transported by a truck, for example, and can be connected and disconnected to and from a pair of the pressure-feeding apparatus main bodies 2, 2 juxtaposed with the filter press 9 of a predetermined slurry processing plant, or the like, through the oil pressure passages 11, 11.
  • the pressure-feeding apparatus 1 is disposed between. the pair of the pressure-feeding apparatus main bodies 2, 2 of the predetermined slurry processing plant in such a manner that the oil pressure passage 30, 30 of its both oil pressure chambers 17, 17 can be coupled to the respective oil pressure passages 11, 11 through the couplings 31.
  • the electromagnetic valve 29 of each oil pressure passage 30 is kept closed by the controlling apparatus 37 and the both oil pressure chambers 22 of the oil pressure cylinder.12 are not communicated with each other pressure-feeding apparatus main body 2.
  • each piston 18 does not generally reach the stroke end. Accordingly, each electromagnetic valve 26 is opened through the controlling apparatus 37 and the switch valve 31 is operated in a predetermined manner so as to pressure-feed the oil of the oil tank 28 through the oil pressure pump to either one of the pressure-chambers 20 of the center oil pressure chamber 16. Next, when the oil of the other of the oil pressure chambers 20 is returned to the oil tank 28, the piston 18 of the center oil pressure chamber 16 moves towards one of the partitions 15 at a low speed from.the middle of the stroke and reaches the sensor. 38' at its stroke end.
  • the slurry from the slurry tank 8 fulfills in advanve the slurry chamber 4 of one of the pair of the pressure-feeding apparatus main bodies 2, 2 while the slurry chamber 4 of the other is kept empty.
  • the initial state of the pressure-feeding apparatus main bodies 2 is not made, the initial setting is made on the processing plant side.
  • the controlling apparatus 37 closes the electromagnetic valves 26, 26 but opens the electromagnetic valves 29, 29.
  • the outer pressure chambers 22, 22 of the oil pressure chambers 17, 17 on both sides of the oil pressure.cylinder 12 are communicated with the inner pressure chambers 9 of the flexible membranes 3 of the corresponding pressure-feeding apparatus main bodies 2.
  • the switch valve 34 is changed over at this time, the oil is pressure-fed into the oil pressure chamber 20 on the side of the stroke end of the piston 18 of the center oil pressure chamber.12 from. the oil pressure passage 33 through the oil pressure pump 36, and each piston 18 moves.forth.
  • the oil pressure is applied to the pressure chamber 9 of the flexible membrane 3 of the pressure-feeding apparatus.main body 2 that fulfills the slurry into the slurry chamber 4, while a negative pressure develops in the oil pressure chamber 9 of the other pressure-feeding.apparatus main body 2, and the slurry from the slurry chamber 4 of the pressure-feeding apparatus main body 2 is pressure-fed into the filter press 9 while the three-way valves 5, 5 are controlled by the controlling apparatus 37.
  • the slurry from the slurry tank 8 is sucked into the slurry chamber 4 of the other of the pressure-feeding apparatus main bodies and charged fully, and the sensors 38, 38' of the partitions of the oil pressure cylinder 12 detect the stroke end of the piston 18.
  • the controlling apparatus 37 changes over the switch valve 34 and hence, changes over pressure-feeding of the oil to the pressure chambers. 20, 20 of the center oil pressure chamber 12 and the oil tank 28. Therefore, the oil pressure cylinder 12 operates and the pair of the pressure-feeding apparatus main bodies 2, 2 are alternately changed over and controlled in order to alternately pressure-feed large quantities of slurry from the slurry tank 8 into the filter press 9.
  • the oil of the inner oil chambers 21, 21 of the oil pressure.chambers 17, 17 on both sides in the oil pressure cylinder 12 is alternately moved through the bypass passage 24.
  • the initial set of the pressure-feeding apparatus 1 can be accomplished reliably by the initial set of the stroke with respect to the center oil pressure chamber 12 at the initial stage as described previously.
  • lamps can be turned on and off at each. stroke end of the piston.
  • the present invention can.be applied not only to the slurry processing plant but to the pressure-feed of chemicals, water, and the like, and the rods of the oil pressure chambers on both sides can be of a double rod type from the aspect of the design change.:
  • the present invention can always set the operation piston to the initial set position by use of the pressure-feeding apparatus itself. Therefore, the present invention provides an excellent effect that the pressure-feeding apparatus can be made transportable by a truck, or the like.
  • the pressure-feeding apparatus Since the pressure-feeding apparatus has three oil pressure chambers, its construction is extremely simple, and setting can be made by only operating the switch valves with respect to the center oil pressure chamber, thereby reducing possible trouble and making maintenance and inspection extremely easy.
  • the pressure-feeding apparatus When the pressure-feeding apparatus is connected to the pressure-feeding apparatus main bodies, its initial set can be made always easily and flexibly.
  • the switch valves Since the oil passages of the oil pressure chambers on both sides are connected to the oil tank through the switch valves, the switch valves are opened unedr the initial set state and when the pressure-feeding apparatus is connected to the pressure-feeding apparatus main bodies, they are closed whereby setting and the alternate change-over operation of the pair of the pressure-feeding apparatus main bodies can be made in a reliable manner.
  • the apparatus can be made compact as a whole, it can be minimized within the possible limit of design and can be applied to a slurry processing apparatus of a small scale plant and to plants for preventing environmental pollution of all the industrial fields.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Press Drives And Press Lines (AREA)
  • Refuse Collection And Transfer (AREA)
  • Earth Drilling (AREA)
EP87107053A 1986-05-19 1987-05-15 Pressure-feeding apparatus Withdrawn EP0247459A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP112486/86 1986-05-19
JP61112486A JPH0635870B2 (ja) 1986-05-19 1986-05-19 圧送装置

Publications (1)

Publication Number Publication Date
EP0247459A1 true EP0247459A1 (en) 1987-12-02

Family

ID=14587849

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87107053A Withdrawn EP0247459A1 (en) 1986-05-19 1987-05-15 Pressure-feeding apparatus

Country Status (9)

Country Link
EP (1) EP0247459A1 (ja)
JP (1) JPH0635870B2 (ja)
KR (1) KR870011017A (ja)
CN (1) CN86108797A (ja)
AU (1) AU6661586A (ja)
BR (1) BR8702525A (ja)
ES (1) ES2002561A6 (ja)
GB (1) GB2190712A (ja)
NO (1) NO872074L (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0419695A1 (en) * 1988-06-02 1991-04-03 Takeshi Hoya Slurry pumping apparatus
WO1994029033A1 (de) * 1993-06-15 1994-12-22 Idh Maschinen Und Anlagen Handelsgesellschaft Mbh Hydraulische pumpeneinrichtung
WO2011116911A3 (de) * 2010-03-26 2012-04-12 Promera Gmbh & Co. Kg Doppelmembranpumpe
EP3523540A4 (en) * 2016-10-07 2020-03-11 Metener OY GAS AMPLIFIER WITH LUBRICATION

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01245812A (ja) * 1988-03-28 1989-10-02 Takeshi Hoya スラリー圧送方法及び装置
AU714861B2 (en) * 1995-09-18 2000-01-13 World Wide Systems (NZ) Limited A fluid pressure driven pumping system
JP2006070821A (ja) * 2004-09-02 2006-03-16 Bay City Service Co Ltd ダイヤフラムポンプ装置
CN111520305B (zh) * 2020-07-06 2020-10-30 沈阳风正技术发展有限公司 一种油田注水二次增压泵
CN116420019A (zh) * 2020-11-09 2023-07-11 辟缔熙机械股份有限公司 液压驱动隔膜压缩机系统
DE102021125005A1 (de) 2021-09-28 2023-03-30 Lewa Gmbh Membranpumpe mit hydraulischem Antrieb

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1550572A1 (de) * 1966-05-18 1969-07-24 Vaudt Albert William Schaltventil,insbesondere zum hydraulischen Antrieb einer Pumpe
GB1320432A (en) * 1970-06-08 1973-06-13 King W R Constant flow pumping system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5429103A (en) * 1977-08-05 1979-03-05 Hoshino Kenzo Pump
JPS578372A (en) * 1980-06-16 1982-01-16 Kenzo Hoshino Pump
DE3105649A1 (de) * 1981-02-17 1982-09-30 Hartmann & Lämmle GmbH & Co KG, 7255 Rutesheim Dosierpumpe
JPS601272U (ja) * 1983-05-27 1985-01-08 小林　稔晴 光線反射盤を付設してなる漁具用浮標

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1550572A1 (de) * 1966-05-18 1969-07-24 Vaudt Albert William Schaltventil,insbesondere zum hydraulischen Antrieb einer Pumpe
GB1320432A (en) * 1970-06-08 1973-06-13 King W R Constant flow pumping system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, unexamined applications, field M, vol. 1, no. 141, November 17, 1977 THE PATENT OFFICE JAPANESE GOVERNMENT page 4 912 M 77 * JP - A 52 81 605 ( KOBESEIKOSHO ) * *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0419695A1 (en) * 1988-06-02 1991-04-03 Takeshi Hoya Slurry pumping apparatus
WO1994029033A1 (de) * 1993-06-15 1994-12-22 Idh Maschinen Und Anlagen Handelsgesellschaft Mbh Hydraulische pumpeneinrichtung
WO2011116911A3 (de) * 2010-03-26 2012-04-12 Promera Gmbh & Co. Kg Doppelmembranpumpe
CN102947593A (zh) * 2010-03-26 2013-02-27 普罗梅拉有限两合公司 双膜片泵
CN102947593B (zh) * 2010-03-26 2016-08-03 普罗梅拉有限两合公司 双膜片泵
EP3523540A4 (en) * 2016-10-07 2020-03-11 Metener OY GAS AMPLIFIER WITH LUBRICATION

Also Published As

Publication number Publication date
BR8702525A (pt) 1988-02-23
NO872074D0 (no) 1987-05-18
NO872074L (no) 1987-11-20
GB8709961D0 (en) 1987-06-03
AU6661586A (en) 1987-11-26
CN86108797A (zh) 1987-12-02
GB2190712A (en) 1987-11-25
KR870011017A (ko) 1987-12-19
JPH0635870B2 (ja) 1994-05-11
JPS62271977A (ja) 1987-11-26
ES2002561A6 (es) 1988-08-16

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