EP0408083A1 - Dosierungsmembranpumpe für aggressive Flüssigkeiten - Google Patents

Dosierungsmembranpumpe für aggressive Flüssigkeiten Download PDF

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Publication number
EP0408083A1
EP0408083A1 EP90113590A EP90113590A EP0408083A1 EP 0408083 A1 EP0408083 A1 EP 0408083A1 EP 90113590 A EP90113590 A EP 90113590A EP 90113590 A EP90113590 A EP 90113590A EP 0408083 A1 EP0408083 A1 EP 0408083A1
Authority
EP
European Patent Office
Prior art keywords
membrane
aggressive
item
liquid
shows
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.)
Granted
Application number
EP90113590A
Other languages
English (en)
French (fr)
Other versions
EP0408083B1 (de
Inventor
Dragutin Vukicevic
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 EP0408083A1 publication Critical patent/EP0408083A1/de
Application granted granted Critical
Publication of EP0408083B1 publication Critical patent/EP0408083B1/de
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
    • 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
    • F04B9/12—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air
    • F04B9/129—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having plural pumping chambers
    • F04B9/131—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having plural pumping chambers with two mechanically connected pumping members
    • F04B9/135—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having plural pumping chambers with two mechanically connected pumping members reciprocating movement of the pumping members being obtained by two single-acting elastic-fluid motors, each acting in one direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L25/00—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means
    • F01L25/02—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means by fluid means
    • F01L25/04—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means by fluid means by working-fluid of machine or engine, e.g. free-piston machine
    • F01L25/06—Arrangements with main and auxiliary valves, at least one of them being fluid-driven
    • F01L25/063—Arrangements with main and auxiliary valves, at least one of them being fluid-driven the auxiliary valve being actuated by the working motor-piston or piston-rod
    • 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
    • F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04B15/04—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being hot or corrosive
    • 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
    • F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members
    • F04B43/10—Pumps having fluid drive
    • F04B43/113—Pumps having fluid drive the actuating fluid being controlled by at least one valve
    • F04B43/1136—Pumps having fluid drive the actuating fluid being controlled by at least one valve with two or more pumping chambers in parallel

Definitions

  • This invention refers to the construction of an aggressive liquids dosage membrane pump. Two membranes, adjacent to each other, alternatively suck and press the aggressive liquid. While one of the membranes is sucking the aggressive liquid as a result of the pressure produced in its chamber, the other one is pressing down the aggressive liquid out of its own chamber, and vice versa. The distribution of the liquids is performed as an entirety and is situated between the two chambers. The air under the pressure of 2,5 to 5 bars moves the pump.
  • the technical problems are to make it possible for the pump: - to transport aggressive liquids - to dose (fine regulation of aggressive liquids) - to provide the material for the construction of speciifc parts for the pump - sealing - to make construction simple - easy disassembling and assembling the pump - to make the production of almost all of the parts of the pump easier - to prevent the possibility of fire, and - to minimize the energy consumption (air under pressure).
  • the aggressive liquids dosage membrane pump is, as an entirety, unique construction, which is caused, in the first place, by new solution of the distribution of aggressive liquid, which represents the point of the invention.
  • the distribution of aggressive liquid is made as an entirety with two plugs - one for sucking line and the other one for the pressing line.
  • the distribution made in this way has a very complex construction which thoroughly solves all the regulrements for previously mentioned technical problems. All parts on section I-I from figure 2 are news. Therefore, the construction of this pump is completely different from pumps at this type.
  • FIG 1 the pump is shown in three projections with the positions of some parts and structure, section I-I from picture 1 is given on figure 2.
  • This section shows the interrelated item of the parts, semistructure and structure.
  • Item 1.00 on figure 1 shows assembly of the distribution of aggressive liquids.
  • the interrelate items of parts and structure is shown on figure 2.
  • Micro-switch works in the following way:
  • the inside part of the membrane moves the valve of the micro-switch (item 2.04, picture 13), so as to close the opening (a) (fig. 13) before the other end of the valve moves the ball (position 2.06, fig. 13) and make it possible for air under the pressure to pass by the ball through the opening (b). Air under the pressure works on the part marked by the arrow (c).
  • the pump works in the following way:
  • the air under pressure of 2.5 to 5 bars enters from inside, for example, the right membrane (figure 2 and 3, item 3) and wides it. Because of the specific construction of the membrane (pict. 20), it moves to the left with its front thicker part and over connecting rod (item 5, fig. 2 and 3) pushes the left membrane. The air from the inside part of left membrane freely goes into the atmosphere through the air distributor 5/2 (item 19, fig. 3). At the same time, the left membrane produces the under pressure in the left chamber and sucks the aggressive liquid in that way.
  • the speed of the membrane movement is regulated which also regulates the flow of aggressive liquids.
  • the flow of aggressive liquids changes linearly depending on the number of cycles of the membrane in a minute.
  • the best way for economic use of the invention is: -
  • the pump is moved by the air under the pressure of 2.5 to 5 bars.
  • the number of cycles is between 10 to 60 cycles/min.
  • the flow of the pump is between 20 l/h with 10 cycles/min. to 300 l/h with 60 cycles/min.
  • the optimal work at the pump is 10 cycles/min. up to 50 cycles/min.
  • permanent magnets are installed in those parts of the two sucking valves facing each other and in the corresponding parts of the exhaust valves as well.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
EP19900113590 1989-07-14 1990-07-16 Dosierungsmembranpumpe für aggressive Flüssigkeiten Expired - Lifetime EP0408083B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
YU1423/89 1989-07-14
YU142389 1989-07-14

Publications (2)

Publication Number Publication Date
EP0408083A1 true EP0408083A1 (de) 1991-01-16
EP0408083B1 EP0408083B1 (de) 1995-06-07

Family

ID=25554115

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900113590 Expired - Lifetime EP0408083B1 (de) 1989-07-14 1990-07-16 Dosierungsmembranpumpe für aggressive Flüssigkeiten

Country Status (2)

Country Link
EP (1) EP0408083B1 (de)
DE (1) DE69019883T2 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2275972A (en) * 1993-03-08 1994-09-14 Stainless Steel Prod Inc Bellows pump for dangerous fluids
EP0898652A1 (de) * 1996-05-17 1999-03-03 Wilden Pump & Engineering Co. Luftgetriebe membranpumpe mit druckverstärkung und überdruckventil

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1920014A (en) * 1931-06-26 1933-07-25 Trico Products Corp Multiple diaphragm pump
US3282167A (en) * 1964-04-09 1966-11-01 Walker Mfg Co Reciprocating fluid motor
FR2284782A1 (fr) * 1974-09-10 1976-04-09 Rambert Sa Surpresseur alternatif a double effet
WO1984004363A1 (en) * 1983-05-04 1984-11-08 Production Tech Ltd A pump for pumping corrosive fluids and a method of circulating corrosive fluids using such a pump
EP0315264A1 (de) * 1987-11-04 1989-05-10 O.D.L. S.r.L. Förderpumpe für Flüssigkeiten, insbesondere für Bier oder mit Kohlensäure versetzte Getränke

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1920014A (en) * 1931-06-26 1933-07-25 Trico Products Corp Multiple diaphragm pump
US3282167A (en) * 1964-04-09 1966-11-01 Walker Mfg Co Reciprocating fluid motor
FR2284782A1 (fr) * 1974-09-10 1976-04-09 Rambert Sa Surpresseur alternatif a double effet
WO1984004363A1 (en) * 1983-05-04 1984-11-08 Production Tech Ltd A pump for pumping corrosive fluids and a method of circulating corrosive fluids using such a pump
EP0315264A1 (de) * 1987-11-04 1989-05-10 O.D.L. S.r.L. Förderpumpe für Flüssigkeiten, insbesondere für Bier oder mit Kohlensäure versetzte Getränke

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ENGINEERING, (INCL. MACHINE SHOP MAGAZINE) vol. 223, no. 12, December 1983, LONDON, GB, page 994, "Novel PTFE process pump handels aggressive chemicals." *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2275972A (en) * 1993-03-08 1994-09-14 Stainless Steel Prod Inc Bellows pump for dangerous fluids
EP0898652A1 (de) * 1996-05-17 1999-03-03 Wilden Pump & Engineering Co. Luftgetriebe membranpumpe mit druckverstärkung und überdruckventil
US6158982A (en) * 1996-05-17 2000-12-12 Wilden Pump & Engineering Co. Amplified pressure air driven diaphragm pump and pressure relief valve therefor
EP0898652A4 (de) * 1996-05-17 2001-03-14 Wilden Pump & Eng Luftgetriebe membranpumpe mit druckverstärkung und überdruckventil
US6357723B2 (en) 1996-05-17 2002-03-19 Wilden Pump & Engineering Co. Amplified pressure air driven diaphragm pump and pressure relief valve therefor

Also Published As

Publication number Publication date
DE69019883D1 (de) 1995-07-13
DE69019883T2 (de) 1996-03-14
EP0408083B1 (de) 1995-06-07

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