ATE153108T1 - SYSTEM WITH A PUMP UNIT FOR CIRCULATION OF A HEATED LIQUID - Google Patents

SYSTEM WITH A PUMP UNIT FOR CIRCULATION OF A HEATED LIQUID

Info

Publication number
ATE153108T1
ATE153108T1 AT94103335T AT94103335T ATE153108T1 AT E153108 T1 ATE153108 T1 AT E153108T1 AT 94103335 T AT94103335 T AT 94103335T AT 94103335 T AT94103335 T AT 94103335T AT E153108 T1 ATE153108 T1 AT E153108T1
Authority
AT
Austria
Prior art keywords
liquid
pump unit
electric motor
heated liquid
circulation
Prior art date
Application number
AT94103335T
Other languages
German (de)
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
Application granted granted Critical
Publication of ATE153108T1 publication Critical patent/ATE153108T1/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

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>
AT94103335T 1993-03-10 1994-03-04 SYSTEM WITH A PUMP UNIT FOR CIRCULATION OF A HEATED LIQUID ATE153108T1 (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
ATE153108T1 true ATE153108T1 (en) 1997-05-15

Family

ID=8091691

Family Applications (1)

Application Number Title Priority Date Filing Date
AT94103335T ATE153108T1 (en) 1993-03-10 1994-03-04 SYSTEM WITH A PUMP UNIT FOR CIRCULATION OF A HEATED LIQUID

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
EP2477731B1 (en) * 2009-09-15 2020-05-20 Flowserve Management Company 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
EP0615070B1 (en) 1997-05-14
EP0615070A1 (en) 1994-09-14
DK27393A (en) 1994-07-25
DE69403121T2 (en) 1997-09-18
DK27393D0 (en) 1993-03-10
DE69403121D1 (en) 1997-06-19
DK169001B1 (en) 1994-07-25

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties