EP3480470B1 - Pumpenaggregat zur kühlung - Google Patents

Pumpenaggregat zur kühlung Download PDF

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Publication number
EP3480470B1
EP3480470B1 EP18204771.2A EP18204771A EP3480470B1 EP 3480470 B1 EP3480470 B1 EP 3480470B1 EP 18204771 A EP18204771 A EP 18204771A EP 3480470 B1 EP3480470 B1 EP 3480470B1
Authority
EP
European Patent Office
Prior art keywords
pump unit
face
channel
motor pump
unit according
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.)
Active
Application number
EP18204771.2A
Other languages
English (en)
French (fr)
Other versions
EP3480470A1 (de
Inventor
Jean-Michel Delahaye
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.)
KSB SAS
Original Assignee
KSB SAS
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 KSB SAS filed Critical KSB SAS
Publication of EP3480470A1 publication Critical patent/EP3480470A1/de
Application granted granted Critical
Publication of EP3480470B1 publication Critical patent/EP3480470B1/de
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
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/5806—Cooling the drive system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/16—Pumping installations or systems with storage reservoirs

Definitions

  • the present invention relates to pump units comprising, from bottom to top, a vertical axis wheel driven in rotation by a motor above it.
  • the engine heats up. It must be cooled, in particular for a pump unit intended to be submerged, of which the top corresponding to the motor is no longer so.
  • a motor-driven pump unit with a vertical axis wheel comprising a body, from which a discharge pipe starts and the upper part of the lateral surface of which is surrounded by a jacket at a distance leaving an interval between them.
  • an annular channel is supported by spacers on the upper face of the body and is delimited by a bottom, an inner face at a distance from the axis and an outer face.
  • the outer face is at a greater distance from the axis than the inner face.
  • the top edge of the inside face is lower than the top edge of the outside face.
  • a bypass duct places the delivery pipe in communication with the channel.
  • the water delivered by the pump unit is led through the bypass pipe into the channel. It fills it up to overflow from the interior face, lower than the exterior face. The water flows into the basin formed between the bottom of the channel and the upper face of the body up to come in between and flow along the body cooling it. The flow is thus made very homogeneous and substantially laminar, which is excellent for the good cooling of the body.
  • a pressure reducing diaphragm is mounted in the bypass duct, so that the water arrives in the channel with less pressure and thus without splashing.
  • the channel is covered with a cover, through which the bypass duct passes and to which the jacket is attached.
  • the jacket is in particular directly supported by the cover.
  • the peripheral outer face of the channel is plumb with the peripheral outer face of the body, which makes it possible to use the water as well as possible for cooling.
  • the single figure of the appended drawing is a truncated sectional view of a motor pump unit according to the invention.
  • the group comprises a body 1 surrounding a motor 2, the shaft of which drives a wheel 3 of vertical axis XX '. From the body 1 starts a delivery pipe 4. From the delivery pipe leaves a bypass duct 5, on which are mounted a strainer 6 and a diaphragm 7.
  • the bypass duct 5 opens into a channel 8 delimited by a bottom 9, by a peripheral inner face 10, by a peripheral outer face 11 and by a cover 12.
  • the top edge of the inner face 10 is lower than the top edge. of the outer face 11.
  • the face 10 is closer to the axis XX 'than the face 11.
  • the cover 12 supports a jacket 13 which extends further downwards than the upper face 14 of the body 2 and which delimits with the lateral face 1. of the body an interval 15.
  • the channel 8 is supported on the upper face 14 of the body 2 by four spacers 16. It is thus defined, between the bottom 9 of the annular channel 8 and the upper face 14 of the body, a plenum tank of the water.
  • water is diverted through pipe 5, which arrives in channel 8. It overflows from the top of the edge of the inner face of the channel, the overflow already leading to tranquilization, for arrive in the basin, which calms it even more, before flowing substantially laminarly in the gap 15 and cooling the outer face 1 of the body 2.
  • the delivery pipe 4 has a diameter of 560 mm
  • the basin has a height of 11 mm
  • the gap is 4 mm
  • the diameter of the diaphragm is 9.5 mm
  • the pump has a flow rate of 10,000 m 3 per hour.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Reciprocating Pumps (AREA)

Claims (7)

  1. Pumpenaggregat mit vertikaler Radachse (XX'), umfassend einen Körper (1, 2), von dem ein Ablaufanschluss (4) ausgeht und von dem der obere Teil der Seitenfläche in einem horizontalen Abstand von einer Ummantelung (13) umgeben ist, wobei ein Spalt dazwischen gebildet ist,
    gekennzeichnet durch:
    - einen ringförmigen Kanal (8), der durch Abstandshalter (16) auf der oberen Fläche des Körpers gestützt und von einem Boden (9), einer Innenfläche (10) in einem Abstand von der Achse (XX') und einer Außenfläche (11) begrenzt wird, wobei der obere Rand der Innenfläche tiefer ist als der obere Rand der Außenfläche, und
    - eine Umgehungsleitung (5), die den Ablaufanschluss (4) mit dem Kanal (8) in Verbindung setzt.
  2. Pumpenaggregat nach Anspruch 1, dadurch gekennzeichnet, dass eine Druckmindermembran (7) in der Umgehungsleitung (5) angebracht ist.
  3. Pumpenaggregat nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass ein Sieb (6) in der Umgehungsleitung angebracht ist.
  4. Pumpenaggregat nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Kanal (8) durch einen Deckel (12) bedeckt ist, durch den die Umgehungsleitung (5) passiert und an dem die Ummantelung (13) befestigt ist.
  5. Pumpenaggregat nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der vertikale Abstand zwischen der oberen Fläche (14) des Körpers (2) und dem Boden (9) des Kanals (8) zwischen 10 und 25 mm beträgt.
  6. Pumpenaggregat nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der horizontale Abstand zwischen der Seitenfläche (1) des Körpers (2) und der Ummantelung (13) zwischen 2 und 6 mm beträgt.
  7. Pumpenaggregat nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Außenfläche (11) lotrecht zur Umfangsaußenfläche des Körpers (1) verläuft.
EP18204771.2A 2017-11-07 2018-11-07 Pumpenaggregat zur kühlung Active EP3480470B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1771173A FR3073260B1 (fr) 2017-11-07 2017-11-07 Groupe motopompe a refroidissement

Publications (2)

Publication Number Publication Date
EP3480470A1 EP3480470A1 (de) 2019-05-08
EP3480470B1 true EP3480470B1 (de) 2020-08-19

Family

ID=60627953

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18204771.2A Active EP3480470B1 (de) 2017-11-07 2018-11-07 Pumpenaggregat zur kühlung

Country Status (2)

Country Link
EP (1) EP3480470B1 (de)
FR (1) FR3073260B1 (de)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE427953B (sv) * 1980-07-01 1983-05-24 Joenkoepings Mek Werkstads Anordning vid drenkbara, elmotordrivna centrifugalpumpar
SE469190B (sv) * 1987-03-30 1993-05-24 Scanpump Ab Pumpaggregat avsett foer korrosiva medier

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
FR3073260B1 (fr) 2019-12-20
EP3480470A1 (de) 2019-05-08
FR3073260A1 (fr) 2019-05-10

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