EP2113661B1 - Amortisseur de pulsations pour flux d'acheminement pulsés - Google Patents

Amortisseur de pulsations pour flux d'acheminement pulsés Download PDF

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Publication number
EP2113661B1
EP2113661B1 EP08008183A EP08008183A EP2113661B1 EP 2113661 B1 EP2113661 B1 EP 2113661B1 EP 08008183 A EP08008183 A EP 08008183A EP 08008183 A EP08008183 A EP 08008183A EP 2113661 B1 EP2113661 B1 EP 2113661B1
Authority
EP
European Patent Office
Prior art keywords
pulsation dampener
cover element
casing
receiving space
pulsation
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.)
Not-in-force
Application number
EP08008183A
Other languages
German (de)
English (en)
Other versions
EP2113661A1 (fr
Inventor
Manfred Kleimeier
Alexander Dipl.-Ing. Machaczek
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.)
MAT Mischanlagentechnik GmbH
Original Assignee
MAT Mischanlagentechnik GmbH
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 MAT Mischanlagentechnik GmbH filed Critical MAT Mischanlagentechnik GmbH
Priority to AT08008183T priority Critical patent/ATE486217T1/de
Priority to DE502008001645T priority patent/DE502008001645D1/de
Priority to EP08008183A priority patent/EP2113661B1/fr
Publication of EP2113661A1 publication Critical patent/EP2113661A1/fr
Application granted granted Critical
Publication of EP2113661B1 publication Critical patent/EP2113661B1/fr
Not-in-force 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
    • F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
    • 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
    • F04B11/00—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation

Definitions

  • the invention relates to a pulsation damper for pulsating flow rates with a housing which encloses a receiving space and has a line connection for connection to a delivery line.
  • a pulsation damper is for example in the document US 20050089428 shown which is considered next coming to the state of the art.
  • the invention relates to a system for promoting settable suspensions with a feed pump, through which a pulsating flow in a delivery line can be generated.
  • pulsation dampers of the type mentioned above are often used.
  • the object of the invention is to provide a pulsation damper for pulsating flow rates and a system for promoting settable suspensions with a feed pump, which work very reliable and durable.
  • An inventive pulsation damper is characterized in that the housing has a bottom element and a cover element, which are connected for enclosing the receiving space with a jacket, and that the jacket is formed elastically deformable.
  • a basic idea of the invention can be seen in constructing the pulsation damper from a plurality of easily detachable individual parts. As a result, the remaining in the container, hardened components of the conveyed can be removed with relatively little effort.
  • the receiving space is variable in its volume. This achieves a particularly good damping effect by the air bubble, which forms in the housing when the fluid is pressed into the housing.
  • the compressed air in the housing changes the volume of the elastic housing, which in turn pushes back the pumped into the housing conveying medium.
  • a dynamic volume change of the housing counteracts deposits and caking in hardening suspensions.
  • a particularly preferred embodiment of the invention is characterized in that a membrane is arranged in the receiving space, which accommodates the receiving space divided into at least two separate subspaces.
  • the air bubble is separated by the membrane from the fluid.
  • the air bubble can be biased, that is filled with an overpressure. This is particularly advantageous at high delivery pressures, as a result, a greater attenuation can be achieved.
  • the line connection is located in the floor element. This ensures that the pulsating fluid must flow from below through the line connection in the housing of the pulsation damper against the gravitational effect.
  • the damping effect is thus in this arrangement from the back pressure of the compressed air cushion and the gravitational effect of the dead weight together.
  • bottom element and cover element mean the respective housing part which lies in the direction of gravity below or above.
  • Another pulsation damper according to the invention is characterized in that a measuring connection for a measuring device, in particular for a pressure gauge, is located in the cover element.
  • a measuring connection for a measuring device in particular for a pressure gauge
  • the pressure inside the housing can be monitored via an opening during pump operation. This is extremely advantageous because it can be concluded on the basis of the pressure monitoring in the housing, whether destructions threaten to the suction and / or pressure lines. If such hazards are identified, the pump power can be adjusted accordingly via a control device or other components of the system can be changed in order to avert damage to the system.
  • a further advantageous embodiment of the pulsation damper according to the invention is characterized in that at least one pull rod is arranged, which is fastened both to the cover element and to the floor element.
  • the pull rod can be dimensioned so that it can absorb the pressure forces acting on the bottom element and the cover element from the delivery pressure.
  • Particularly preferred such tie rods are elastically formed, in particular of a spring-like metal, an elastic material, such as rubber, plastic, etc, or of a combination of such materials.
  • the bottom element and / or the cover element are circular and that the jacket is cylindrical.
  • These shapes for bottom and cover element as well as jacket are very advantageous, since thus a cylindrical pulsation damper can be built.
  • This form has some beneficial aspects.
  • the bottom and cover elements can be made stable in order to be able to absorb the vertically acting pressure forces of the pulsating delivery flow.
  • the elastic jacket can absorb the compressive forces of the air symmetrically in an ideal manner and return them in the direction of the pulsating delivery flow.
  • these three elements can be easily disassembled and, since there are no corners and edges, are very easily cleaned.
  • a further particularly advantageous embodiment of the invention is characterized in that a plurality of tie rods are present, which are arranged on a circular line.
  • tie rods are present, which are arranged on a circular line.
  • the advantage of several arranged on a circular line tie rods is that on the one hand acting tensile and compressive forces in the vertical direction can be compensated much better, on the other hand is achieved by the arrangement of the tie rods on a circular line further that any existing Transverse forces can also be largely eliminated by the rotationally symmetrical arrangement.
  • the jacket has a rubber or plastic material.
  • the jacket can be made particularly inexpensive by cutting a hose from the rubber or plastic material.
  • settable suspensions such as, for example, cement-, lime- and gypsum-containing suspensions, hardly adhere to such materials. It can thus be achieved, in particular by a movement of the elastic jacket, that any conveying media adhering to the jacket again fall off and return to the delivery flow. This ensures that the pulsation damper works more reliably and is more durable.
  • the jacket has at least one insert made of textile or steel fabric.
  • a further advantageous embodiment of the invention consists in that the lateral edge of the cover element and / or the bottom element is designed to connect to the shell with a shaping contour.
  • the shaping contour can be elevations and / or countersinks, in particular circumferential projections and grooves, which form into the elastic jacket and thus ensure a good force and positive connection. In this way, it is achieved with simple means to create an effective and firm connection between the jacket and the cover element and the bottom element.
  • a tubular jacket with the upper end is slipped over the lid member and slipped with the lower end on the lateral contour of the bottom element.
  • the lower end and upper end of the jacket are connected at the lateral edge of the cover element or the floor element respectively by means of a releasable fastening device, in particular a circumferential clamp.
  • a releasable fastening device in particular a circumferential clamp.
  • the plant according to the invention for conveying settable suspensions with a feed pump is characterized in that a pulsation damper according to the invention is connected to the feed line.
  • a pulsation damper according to the invention is connected to the feed line.
  • a particularly preferred embodiment of the system according to the invention is characterized in that the pulsation damper is connected to the delivery line via a T-piece.
  • a T-piece is the best way to connect a pulsation damper to a delivery line. The flow can continue to flow in the intended direction, while the flow is simultaneously forced through the T-piece in the pulsation damper and damped.
  • FIGURE shows a schematic cross-sectional view of an embodiment according to the invention of a pulsation damper.
  • An inventive pulsation damper 20 consists of a housing 15 having a receiving space 16.
  • the main components of the housing 15 are a bottom element 4, a cover element 1 and a jacket 7.
  • a line connection 5 for connecting the pulsation damper 20 to a delivery line.
  • a measuring connection 2 to which a measuring device, in particular a pressure gauge, for checking the air pressure in the receiving space 16 of the pulsation damper 20 is connected.
  • Both bottom element 4 and cover element 1 are circular disc-shaped with a diameter D.
  • the two discs of the bottom member 4 and the lid member 1 are aligned parallel to each other and have a distance H.
  • the thickness of the bottom member 4 is in the figure with sb, the thickness of Cover element 1 designated sd.
  • the cylindrical shell 7 consists of an elastic, tubular rubber or plastic molding with at least one insert made of textile or steel fabric.
  • the jacket 7 has a minimum height of H + sb + sd, an inner diameter D, a jacket thickness sm and has several inserts made of textile or steel fabric.
  • the volume, the diameter D and the height H of the pulsation damper 20, the thickness sb and shape of the bottom member 4, the thickness sd and the shape of the lid member 1 and the thickness sm and the structure of the shell 7 are each determined by the required damping volume, the at the pulsation damper 20 pending delivery pressure and the installation situation and the materials used determined.
  • the pulsation damper 20 is attached either directly via the line connection 5 or by additional retaining tabs on the base element 4 or on the cover element 1.
  • the jacket 7 is placed around the bottom element 4 and the cover element 1 such that the lower end of the jacket 7 terminates with the lower end of the bottom element 4 and closes the upper end of the jacket 7 with the upper end of the cover element 1. Since the inner diameter of the shell 7 coincides with the outer diameters of the bottom element 4 and the cover element 1, this results in a dense Housing 15.
  • a bottom clamp 13 is placed at the vertical position of the bottom element 4 and a cover clamp 14 at the position of the cover element 1 around the jacket 7.
  • Both clamps 13, 14 can each be tensioned by means of a screw, so that the respective clamp 13, 14 at the positions of the bottom element 4 and the cover element 1 from the outside annularly presses the jacket 7 on the bottom element 4 and the cover element 1. As a result, the housing 15 is sealed.
  • the bottom element 4 and the cover element 1 at the lateral edge circumferentially a cover sealing surface 3 and a bottom sealing surface 6 in the form of several Grooves on.
  • the illustrated embodiment has two possible embodiments 8 and 8a for the tie rods 8, 8a used.
  • On the left side of the Fig. 1 is the execution option with a pull rod 8 and on the right side of Fig. 1 the embodiment is shown with pull rod 8a.
  • pull rod 8a In an actual embodiment, as a rule, only tie rods 8, 8a of one and the same type will be located.
  • the tie rods 8, 8a are fixed both in the bottom element 4 and in the cover element 1 and arranged on a circular line.
  • the pull rod 8 is fastened both in the bottom element 4 and in the cover element 1.
  • the bottom element 4 and the cover element 1 is first pierced parallel to the longitudinal axis of the Pulsationsdämpfers 20 and a pull rod 8 passes, which protrudes above and below the Pulsationsdämpfers 20 via the bottom element 4 and the cover element 1.
  • the pull rod 8 is fastened to the cover element 1 on the outside with a nut 9 and an outer sealing disc 11 and on the inside of the cover element 1 with a lock nut 10 and an inner sealing disc 12.
  • the pull rod 8 is fastened in the same way as on the cover element 1.
  • both the lid member 1 and the bottom member 4 are also pierced, however, both the lid member 1 and the bottom member 4 is provided on the inside, in the receiving space 16 with a counterbore. Seen from the receiving space 16, the bore through the bottom element 4 and the lid member 1 for forming a shoulder first on a larger and on the outside then a smaller diameter.
  • the tie rod 8a has in the same way in the middle of the housing 15 has a larger and towards the ends a smaller diameter for forming a corresponding paragraph.
  • Floor element 4, cover element 1 and pull rod 8a are dimensioned so that the pull rod 8a can be inserted accurately into the bottom element 4 and the cover element 1.
  • the cover element 1 and the pull rod 8a is in each case an inner sealing disc 12a.
  • an external thread At the two thin ends of the pull rod 8a is an external thread, at which each with the help of a nut 9a and an outer sealing disc 11a of the inserted from the inside to the outside part of the pull rod 8a is screwed.
  • the tie rods 8, 8a are each dimensioned so that they can absorb the pressure forces acting on the base element 4 and the cover element 1 from the delivery pressure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Pipe Accessories (AREA)
  • Slot Machines And Peripheral Devices (AREA)
  • Vehicle Body Suspensions (AREA)

Claims (14)

  1. Amortisseur de pulsations pour des débits d'acheminement pulsés
    avec un boîtier (15) qui entoure un logement (16) et comprend un raccord (5) de conduite pour raccorder une conduite d'acheminement,
    caractérisé
    en ce que le boîtier (15) comprend un élément de fond (4) et un élément de couverture (1) qui sont reliés pour entourer le logement (16) avec une enveloppe (7), et
    en ce que l'enveloppe (7) est réalisée déformable élastiquement.
  2. Amortisseur de pulsations selon la revendication 1,
    caractérisé en ce que le logement (16) est de volume variable.
  3. Amortisseur de pulsations selon la revendication 1 ou 2,
    caractérisé en ce que, dans le logement (16), est placée une membrane qui divise le logement (16) en au moins deux chambres séparées.
  4. Amortisseur de pulsations selon l'une quelconque des revendications 1 à 3,
    caractérisé en ce que le raccord (5) de conduite se trouve dans l'élément de fond (4).
  5. Amortisseur de pulsations selon l'une quelconque des revendications 1 à 4,
    caractérisé en ce que dans l'élément de couverture (1) se trouve un raccord (2) pour mesures, pour un dispositif de mesure, en particulier un manomètre.
  6. Amortisseur de pulsations selon l'une quelconque des revendications 1 à 5,
    caractérisé en ce qu'au moins une barre de traction (8, 8a) est disposée, qui est fixée à la fois à l'élément de couverture (1) et à l'élément de fond (4).
  7. Amortisseur de pulsations selon l'une quelconque des revendications 1 à 6,
    caractérisé
    en ce que l'élément de fond (4) et/ou l'élément de couverture (1) sont réalisés circulaires, et
    en ce que l'enveloppe (7) est réalisée cylindrique.
  8. Amortisseur de pulsations selon la revendication 6 ou 7,
    caractérisé en ce que plusieurs barres de traction (8, 8a) sont prévues, qui sont placées sur une ligne circulaire.
  9. Amortisseur de pulsations selon l'une quelconque des revendications 1 à 8,
    caractérisé en ce que l'enveloppe (7) comprend un matériau à base de caoutchouc ou de matière plastique.
  10. Amortisseur de pulsations selon l'une quelconque des revendications 1 à 9,
    caractérisé en ce que l'enveloppe (7) comprend au moins un insert en voile textile ou d'acier.
  11. Amortisseur de pulsations selon l'une quelconque des revendications 1 à 10,
    caractérisé en ce que le bord latéral de l'élément de couverture (1) et/ou de l'élément de fond (4) est réalisé avec un contour façonné pour se raccorder à l'enveloppe (7).
  12. Amortisseur de pulsations selon l'une quelconque des revendications 1 à 11,
    caractérisé en ce que les extrémités inférieure et supérieure de l'enveloppe (7) sont reliées au niveau du bord latéral, respectivement de l'élément de couverture (1) et de l'élément de fond (4), dans chaque cas au moyen d'un dispositif de fixation amovible, en particulier d'un collier périphérique.
  13. Dispositif d'acheminement de suspensions durcissables, avec une pompe d'alimentation, par laquelle un débit d'acheminement, en particulier pulsé, peut être produit dans une conduite d'acheminement,
    caractérisé en ce qu'un amortisseur de pulsations (20) selon l'une quelconque des revendications 1 à 12 est raccordé à la conduite d'acheminement.
  14. Dispositif selon la revendication 13,
    caractérisé en ce que l'amortisseur de pulsations (20) est raccordé à la conduite d'acheminement par un connecteur en T.
EP08008183A 2008-04-29 2008-04-29 Amortisseur de pulsations pour flux d'acheminement pulsés Not-in-force EP2113661B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT08008183T ATE486217T1 (de) 2008-04-29 2008-04-29 Pulsationsdämpfer für pulsierende förderströme
DE502008001645T DE502008001645D1 (de) 2008-04-29 2008-04-29 Pulsationsdämpfer für pulsierende Förderströme
EP08008183A EP2113661B1 (fr) 2008-04-29 2008-04-29 Amortisseur de pulsations pour flux d'acheminement pulsés

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08008183A EP2113661B1 (fr) 2008-04-29 2008-04-29 Amortisseur de pulsations pour flux d'acheminement pulsés

Publications (2)

Publication Number Publication Date
EP2113661A1 EP2113661A1 (fr) 2009-11-04
EP2113661B1 true EP2113661B1 (fr) 2010-10-27

Family

ID=39705178

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08008183A Not-in-force EP2113661B1 (fr) 2008-04-29 2008-04-29 Amortisseur de pulsations pour flux d'acheminement pulsés

Country Status (3)

Country Link
EP (1) EP2113661B1 (fr)
AT (1) ATE486217T1 (fr)
DE (1) DE502008001645D1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201503779D0 (en) * 2015-03-06 2015-04-22 Delphi International Operations Luxembourg S.�.R.L. Damping apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2355001A (en) * 1942-05-21 1944-08-01 Chain Belt Co Pulsation dampener for concrete-conveying pipe-line systems
DE4318553C2 (de) * 1993-06-04 1995-05-18 Daimler Benz Ag Adaptiver hydropneumatischer Pulsationsdämpfer
WO2002081917A1 (fr) * 2001-04-09 2002-10-17 Pumping Systems Technologies Pty Limited Pompe volumetrique et equipement auxiliaire
US20050089428A1 (en) * 2003-10-24 2005-04-28 Navarro Ramon M. Pump pulsation dampening attachment and method for dampening pump pulsations

Also Published As

Publication number Publication date
ATE486217T1 (de) 2010-11-15
EP2113661A1 (fr) 2009-11-04
DE502008001645D1 (de) 2010-12-09

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