EP2034186A2 - Dispositif destiné au transport de liquides - Google Patents

Dispositif destiné au transport de liquides Download PDF

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Publication number
EP2034186A2
EP2034186A2 EP08015254A EP08015254A EP2034186A2 EP 2034186 A2 EP2034186 A2 EP 2034186A2 EP 08015254 A EP08015254 A EP 08015254A EP 08015254 A EP08015254 A EP 08015254A EP 2034186 A2 EP2034186 A2 EP 2034186A2
Authority
EP
European Patent Office
Prior art keywords
pump
borne noise
electric motor
measured
change
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
EP08015254A
Other languages
German (de)
English (en)
Other versions
EP2034186A3 (fr
EP2034186B1 (fr
Inventor
Thomas Haar
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.)
Saeta GmbH and Co KG
Original Assignee
Saeta GmbH and Co KG
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 Saeta GmbH and Co KG filed Critical Saeta GmbH and Co KG
Publication of EP2034186A2 publication Critical patent/EP2034186A2/fr
Publication of EP2034186A3 publication Critical patent/EP2034186A3/fr
Application granted granted Critical
Publication of EP2034186B1 publication Critical patent/EP2034186B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F04B51/00—Testing machines, pumps, or pumping installations
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/10—Other safety measures
    • 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
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/08—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the rotational speed
    • 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
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/28—Safety arrangements; Monitoring
    • 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
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
    • F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • 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
    • F04C2240/80—Other components
    • F04C2240/81—Sensor, e.g. electronic sensor for control or monitoring
    • 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
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/13—Noise
    • 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
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/80—Diagnostics

Definitions

  • the invention relates to a device for conveying liquids, in particular for dispensing liquids from tank trucks according to claim 1.
  • the object of the invention is to provide a device of simple construction and action for conveying liquids, in particular for dispensing liquids from a tanker truck.
  • a structure-borne sound pickup is arranged on the housing of the pump, which is connected to an evaluation device for the measured structure-borne noise of the pump housing.
  • the evaluation device generates a signal for the control device of the drive motor the pump when a change in the measured structure-borne noise is detected.
  • the invention is based on the fact that in displacement pumps when sucking air, the noise of the pump is changed. The reason for this is the sudden pressure increase in the pump, which causes the small air bubbles present to implode. With the help of a structure-borne sound pickup, this phenomenon can now be used to detect air bubbles in liquids.
  • structure-borne noise must be suitably analyzed, for example with regard to its frequency and amplitude.
  • the drive motor of the pump is activated accordingly.
  • the drive motor can be switched off and a discharge valve can be locked.
  • the control device can reduce the drive motor in its speed, or down regulate until no more air bubbles occur.
  • the single figure shows a schematic diagram of the device according to the invention.
  • a pump 10 is shown, for example, a vane pump. It is connected to a suction duct 12, e.g. led to the chambers of a tanker, not shown. For several chambers, the line 12 is a manifold.
  • a pressure line 14 of the pump 10 passes via a dispensing valve 16 to a dispensing line 18, which e.g. connected to a hose, for conveying the liquid from the tanker in a receiving tank (also not shown).
  • the dispensing valve 16 is actuated by an actuator 20. Before the dispensing valve, a volumeter, not shown, is arranged.
  • the vane pump 10 is driven by an electric motor 22, which in turn is controlled by a control device 24.
  • the electric motor 22 may be e.g. be a three-phase motor.
  • a structure-borne sound pickup 26 With the housing of the vane pump 10, not shown, a structure-borne sound pickup 26 is connected.
  • the structure-borne sound pickup 26 registers the structure-borne noise caused in the housing.
  • the structure-borne sound signal of the structure-borne sound receiver 26 reaches an evaluation device 28, which analyzes the structure-borne sound with regard to the amplitude and / or frequency.
  • the frequency or amplitude spectrum changes with the appearance of air bubbles in the suction line 12. If this change is significant, the control device 24 is driven so that either the motor 22 is turned off or reduced in its speed. In the latter case, the speed can be adjusted so that no more air bubbles occur.
  • the Dispensing valve 16 With the switching off of the drive motor 22 may also be the Dispensing valve 16 are transferred to the blocking state, so that no more gravity delivery occurs.
  • the volume meter is arranged, with which the dispensed amount of liquid is measured. Measuring air interferes with the accuracy of the quantity measurement.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)
  • Reciprocating Pumps (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)
  • Measuring Volume Flow (AREA)
EP08015254.9A 2007-09-06 2008-08-29 Dispositif destiné au transport de liquides Active EP2034186B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200720012542 DE202007012542U1 (de) 2007-09-06 2007-09-06 Vorrichtung zur Förderung von Flüssigkeiten

Publications (3)

Publication Number Publication Date
EP2034186A2 true EP2034186A2 (fr) 2009-03-11
EP2034186A3 EP2034186A3 (fr) 2011-07-06
EP2034186B1 EP2034186B1 (fr) 2015-07-01

Family

ID=38664343

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08015254.9A Active EP2034186B1 (fr) 2007-09-06 2008-08-29 Dispositif destiné au transport de liquides

Country Status (2)

Country Link
EP (1) EP2034186B1 (fr)
DE (1) DE202007012542U1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008047122A1 (de) 2008-09-15 2010-04-22 Bartec Gmbh Vorrichtung zur Abgabe von Flüssigkeit aus einem Tank und Verfahren zur Restentleerung eines Leitungsabschnittes
WO2018151869A1 (fr) * 2017-02-16 2018-08-23 Liquid Controls Llc Système et procédé de distribution de carburant liquide

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0035217A2 (fr) 1980-02-29 1981-09-09 ALFONS HAAR Maschinenbau GmbH & Co. KG Dispositif pour empêcher la mesure d'additions gazeuses lors de la distribution de liquides
US5232006A (en) 1990-12-07 1993-08-03 F. Wennstrom Aktiebolag System for separating gas from a liquid flow whose volume is to be measured
DE19540884A1 (de) 1995-11-02 1997-05-07 Haar Maschbau Alfons Verfahren und Anlage zum Messen des Volumens durchströmender Flüssigkeiten

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3520734A1 (de) * 1985-06-10 1986-12-11 Kraftwerk Union AG, 4330 Mülheim Verfahren und einrichtung zum betrieb einer kreiselpumpe
DE19517289A1 (de) * 1995-05-11 1996-11-14 Klein Schanzlin & Becker Ag Überwachungssystem zur Feststellung einer Kavitationsintensität

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0035217A2 (fr) 1980-02-29 1981-09-09 ALFONS HAAR Maschinenbau GmbH & Co. KG Dispositif pour empêcher la mesure d'additions gazeuses lors de la distribution de liquides
US5232006A (en) 1990-12-07 1993-08-03 F. Wennstrom Aktiebolag System for separating gas from a liquid flow whose volume is to be measured
DE19540884A1 (de) 1995-11-02 1997-05-07 Haar Maschbau Alfons Verfahren und Anlage zum Messen des Volumens durchströmender Flüssigkeiten

Also Published As

Publication number Publication date
EP2034186A3 (fr) 2011-07-06
DE202007012542U1 (de) 2007-11-08
EP2034186B1 (fr) 2015-07-01

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