DK27393D0 - SYSTEM CONTAINING A PUMP UNIT FOR CIRCULATION OF HEATED LIQUID IN THE SYSTEM - Google Patents

SYSTEM CONTAINING A PUMP UNIT FOR CIRCULATION OF HEATED LIQUID IN THE SYSTEM

Info

Publication number
DK27393D0
DK27393D0 DK93273A DK27393A DK27393D0 DK 27393 D0 DK27393 D0 DK 27393D0 DK 93273 A DK93273 A DK 93273A DK 27393 A DK27393 A DK 27393A DK 27393 D0 DK27393 D0 DK 27393D0
Authority
DK
Denmark
Prior art keywords
liquid
pump unit
electric motor
heated liquid
circulation
Prior art date
Application number
DK93273A
Other languages
Danish (da)
Other versions
DK169001B1 (en
DK27393A (en
Inventor
Leif Rasmussen
Original Assignee
Smedegaard As
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 Smedegaard As filed Critical Smedegaard As
Priority to DK027393A priority Critical patent/DK169001B1/en
Publication of DK27393D0 publication Critical patent/DK27393D0/en
Priority to DE69403121T priority patent/DE69403121T2/en
Priority to EP94103335A priority patent/EP0615070B1/en
Priority to AT94103335T priority patent/ATE153108T1/en
Application granted granted Critical
Publication of DK169001B1 publication Critical patent/DK169001B1/en
Publication of DK27393A publication Critical patent/DK27393A/en

Links

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
    • F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
    • F04D29/588—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps cooling or heating the machine
    • 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
    • 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
    • F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
    • F04D29/5893—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps heat insulation or conduction

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)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Central Heating Systems (AREA)
  • Cookers (AREA)

Abstract

In a plant comprising a pump unit for circulating heated liquid within the plant, said pump unit comprising a liquid pump (1,2,3,5) driven by an electric motor (4,6,7), the operating economy is improved by cooling the electric motor by circulating a part-flow of the heated liquid circulated by the liquid pump in a cooling jacket (8) provided in the electric motor (4,6,7). A further improvement is achieved by thermally insulating (10) the electric motor (4,6,7) and the liquid pump (1,2,3,5) from the surroundings, so that the heat losses from the electrical components are utilized for heating the liquid being circulated. <IMAGE>
DK027393A 1993-03-10 1993-03-10 A system comprising a pump unit for circulating heated fluid in the system DK169001B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DK027393A DK169001B1 (en) 1993-03-10 1993-03-10 A system comprising a pump unit for circulating heated fluid in the system
DE69403121T DE69403121T2 (en) 1993-03-10 1994-03-04 System with pump unit for circulating a heated liquid
EP94103335A EP0615070B1 (en) 1993-03-10 1994-03-04 Plant with a pump unit for circulating heated liquid within the plant
AT94103335T ATE153108T1 (en) 1993-03-10 1994-03-04 SYSTEM WITH A PUMP UNIT FOR CIRCULATION OF A HEATED LIQUID

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK27393 1993-03-10
DK027393A DK169001B1 (en) 1993-03-10 1993-03-10 A system comprising a pump unit for circulating heated fluid in the system

Publications (3)

Publication Number Publication Date
DK27393D0 true DK27393D0 (en) 1993-03-10
DK169001B1 DK169001B1 (en) 1994-07-25
DK27393A DK27393A (en) 1994-07-25

Family

ID=8091691

Family Applications (1)

Application Number Title Priority Date Filing Date
DK027393A DK169001B1 (en) 1993-03-10 1993-03-10 A system comprising a pump unit for circulating heated fluid in the system

Country Status (4)

Country Link
EP (1) EP0615070B1 (en)
AT (1) ATE153108T1 (en)
DE (1) DE69403121T2 (en)
DK (1) DK169001B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19633137A1 (en) * 1996-08-16 1998-02-19 Wolff Horst Dipl Ing Fh Circulating pump for liquid in solar collector circuit
WO2011034840A2 (en) * 2009-09-15 2011-03-24 Lawrence Pumps, Inc. Vertically rotatable shaft assembly with thermally insulated housing
DE102014208297B4 (en) * 2014-05-02 2019-10-31 Homa Pumpenfabrik Gmbh pump assembly

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3109624C2 (en) * 1981-03-13 1986-01-30 Wilo-Werk Gmbh & Co Pumpen- Und Apparatebau, 4600 Dortmund Circulation pump
US4854373A (en) * 1988-03-30 1989-08-08 Williams Gordon G Heat exchanger for a pump motor
DE4022610A1 (en) * 1990-07-16 1992-01-23 Abs Pumpen Ag DEVICE FOR THE AUTOMATIC VENTILATION OF A REFRIGERATION CHAMBER
DE4118057A1 (en) * 1991-06-01 1992-12-03 Oplaender Wilo Werk Gmbh PACKING A PUMP

Also Published As

Publication number Publication date
DE69403121D1 (en) 1997-06-19
ATE153108T1 (en) 1997-05-15
EP0615070B1 (en) 1997-05-14
EP0615070A1 (en) 1994-09-14
DE69403121T2 (en) 1997-09-18
DK169001B1 (en) 1994-07-25
DK27393A (en) 1994-07-25

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Legal Events

Date Code Title Description
A0 Application filed
B1 Patent granted (law 1993)
PBP Patent lapsed