EP0410923A1 - Dispositif de pompage de liquide au moyen d'air comprimé - Google Patents

Dispositif de pompage de liquide au moyen d'air comprimé Download PDF

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Publication number
EP0410923A1
EP0410923A1 EP90610047A EP90610047A EP0410923A1 EP 0410923 A1 EP0410923 A1 EP 0410923A1 EP 90610047 A EP90610047 A EP 90610047A EP 90610047 A EP90610047 A EP 90610047A EP 0410923 A1 EP0410923 A1 EP 0410923A1
Authority
EP
European Patent Office
Prior art keywords
pump
pump chamber
liquid
pump arrangement
inlet opening
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
EP90610047A
Other languages
German (de)
English (en)
Other versions
EP0410923B1 (fr
Inventor
Aksel Sondergard Frandsen
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 EP0410923A1 publication Critical patent/EP0410923A1/fr
Application granted granted Critical
Publication of EP0410923B1 publication Critical patent/EP0410923B1/fr
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
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F1/00—Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped
    • F04F1/06—Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped the fluid medium acting on the surface of the liquid to be pumped

Definitions

  • the present invention relates to a pump arrangement of the kind described in the introduction to claim 1.
  • the pump arrangement according to the invention is open during the whole throughput action it can also pump liquids containing large objects such as plastics bags, rope ends and the like. Furthermore, it can be used to pump water containing live fish.
  • Claim 2 deals with an embodiment of the pump chamber of a pump arrangement according to the invention.
  • Claim 3 deals with another embodiment of the pump chamber of a pump arrangement according to the invention.
  • Claim 4 deals with a pump arrangement according to the invention in which the pump acts as a liquid pump.
  • Claim 5 deals with a pump arrangement in which the pump preferably pumps sludge from a sludgy liquid.
  • a pump arrangement has a pump chamber 1, with an inlet opening 2 and a discharge opening 3.
  • a discharge pipe 4 preferably by a U-shaped bend 5.
  • a supply pipe 6 for compressed air is connected to the top part of the pump chamber 1.
  • the compressed air can be supplied from a blower 7 so that compressed air is pumped into the pump arrangement when a magnet valve 8 is closed.
  • the pump arrangement is aired, when the valve 8 is open.
  • the valve 8 can be activated in various ways, e.g. by a not shown level sensor in the discharge pipe 4.
  • the pump arrangement can also be spring suspended and designed so that it can activate a not shown limit switch in a bottom position, when it is filled with liquid, and in a top position, when it is emptied of liquid.
  • an inlet pipe 9 Connected to the inlet opening 2 to the pump chamber 1 is an inlet pipe 9, reaching from the inlet opening 2 down into the liquid to a level where the pressure head H is higher than the pressure head of the pump arrangement and which is preferably lower than the lowest part of the pump chamber.
  • the inlet pipe 9 can also - as shown at the bottom of fig. 2 - enter a pump well 11 from which the pump arrangement pumps liquid.
  • the pump arrangement can in this case be buried in the ground.
  • the valve 8 When the pump chamber 1 is filled with liquid and a corresponding liquid level in the discharge pipe 4 is reached, the valve 8 will close and the blower 7 will force compressed air into the pump chamber.
  • the blower 7 can either be in continuous operation, or it can be connected to the control system for the valve 8, so that it stops when the valve 8 is open.
  • the pump arrangement can also be used as a flow meter.
  • Such a pump can send a signal to another pump, which can be a dosing pump for chemicals.
  • the pump chamber 1 can be embodied as an oblong, preferably cylindrical, pipe oriented with a backward slope from the inlet opening 2 towards the discharge opening 3. This gives the pump with the inlet pipe 9, the pump chamber, and the discharge pipe 4 the shape of an N.
  • the pump chamber 1 may also - as shown in fig. 2 - have the shape of an oblong, preferably cylindrical, pipe with a horizontal position.
  • the lower edge 10 of the inlet opening 2 is placed at a higher level than the upper edge 12 of the pump chamber 1.
  • the pump arrangement then functions as a liquid pump.
  • the pump arrangement can thus be used for cleaning of waste water for sludge.
  • the pump chamber shown in fig. 1 can be embodied with a beginning part with an inclined downward slope and then with a horizontal part and then with a part inclined downwards.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
EP19900610047 1989-07-25 1990-07-17 Dispositif de pompage de liquide au moyen d'air comprimé Expired - Lifetime EP0410923B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK365889A DK162460C (da) 1989-07-25 1989-07-25 Pumpeanordning til pumpning af vaeske ved hjaelp af trykluft
DK3658/89 1989-07-25

Publications (2)

Publication Number Publication Date
EP0410923A1 true EP0410923A1 (fr) 1991-01-30
EP0410923B1 EP0410923B1 (fr) 1993-03-17

Family

ID=8125355

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900610047 Expired - Lifetime EP0410923B1 (fr) 1989-07-25 1990-07-17 Dispositif de pompage de liquide au moyen d'air comprimé

Country Status (3)

Country Link
EP (1) EP0410923B1 (fr)
DE (1) DE69001104T2 (fr)
DK (1) DK162460C (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB241960A (en) * 1924-04-22 1925-10-22 Charles Bates Improved apparatus for raising water, sewage, sand, and the like
GB245238A (en) * 1924-11-06 1926-01-07 Samuel Henry Adams Improvements in hydro pneumatic ejectors
FR806643A (fr) * 1935-05-22 1936-12-21 Flottmannkonzern G M B H Procédé pour l'élévation de liquides, applicable notamment dans les puits tubés et dispositifs permettant se mise en oeuvre
DE960250C (de) * 1954-07-04 1957-03-21 Dipl Berging Otto Vedder Druckluftbetriebener, schwimmergesteuerter, als Saugpumpe ausgebildeter Fluessigkeitsheber
FR2227448A1 (fr) * 1973-04-30 1974-11-22 Ecodyne Corp

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB241960A (en) * 1924-04-22 1925-10-22 Charles Bates Improved apparatus for raising water, sewage, sand, and the like
GB245238A (en) * 1924-11-06 1926-01-07 Samuel Henry Adams Improvements in hydro pneumatic ejectors
FR806643A (fr) * 1935-05-22 1936-12-21 Flottmannkonzern G M B H Procédé pour l'élévation de liquides, applicable notamment dans les puits tubés et dispositifs permettant se mise en oeuvre
DE960250C (de) * 1954-07-04 1957-03-21 Dipl Berging Otto Vedder Druckluftbetriebener, schwimmergesteuerter, als Saugpumpe ausgebildeter Fluessigkeitsheber
FR2227448A1 (fr) * 1973-04-30 1974-11-22 Ecodyne Corp

Also Published As

Publication number Publication date
DE69001104D1 (de) 1993-04-22
DK162460C (da) 1992-03-23
DK365889A (da) 1991-01-26
DK162460B (da) 1991-10-28
DE69001104T2 (de) 1993-10-28
DK365889D0 (da) 1989-07-25
EP0410923B1 (fr) 1993-03-17

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