US20160090979A1 - Pump arrangement - Google Patents

Pump arrangement Download PDF

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Publication number
US20160090979A1
US20160090979A1 US14/787,045 US201414787045A US2016090979A1 US 20160090979 A1 US20160090979 A1 US 20160090979A1 US 201414787045 A US201414787045 A US 201414787045A US 2016090979 A1 US2016090979 A1 US 2016090979A1
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US
United States
Prior art keywords
pump
pump system
arrangement
conveying
heat conducting
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.)
Abandoned
Application number
US14/787,045
Inventor
Harald Buchalla
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.)
Hanning Elektro Werke GmbH and Co KG
Original Assignee
Hanning Elektro Werke 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 Hanning Elektro Werke GmbH and Co KG filed Critical Hanning Elektro Werke GmbH and Co KG
Assigned to HANNING ELEKTRO-WERKE GMBH & CO. KG reassignment HANNING ELEKTRO-WERKE GMBH & CO. KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BUCHALLA, HARALD
Publication of US20160090979A1 publication Critical patent/US20160090979A1/en
Abandoned legal-status Critical Current

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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
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/0009—Special features
    • F04B43/0054—Special features particularities of the flexible members
    • F04B43/0072—Special features particularities of the flexible members of tubular flexible members
    • 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
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members
    • F04B43/09—Pumps having electric drive
    • 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
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B21/00—Machines, plants or systems, using electric or magnetic effects
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]

Definitions

  • the device By supplying and discharging media (gases, liquids), the device may be supplied with thermal energy, which can be transformed to a different temperature level and then be discharged.
  • thermal energy For the supply and discharge of media, pump systems are required. These pump systems must operate with low-maintenance and good efficiency. In the following, a pump system is disclosed which is particularly well suited for this application.
  • FIG. 1 shows an assembly 1 , to which a medium having a temperature ⁇ 1 is supplied, and from which a medium with temperature ⁇ 2 is discharged.
  • a medium having a temperature ⁇ 1 is supplied, and from which a medium with temperature ⁇ 2 is discharged.
  • rotary energy is input into such an assembly.
  • the rotational frequency of the rotational motion induced in the assembly by external drives must be low (in particular between 0.5 Hz and 20 Hz, preferably in the range of 1 Hz to 10 Hz).
  • These external drives can be formed, for example, by a combination of distinctly faster running, generally cylindrical shaped, electric motor 2 and a reduction gear 3 .
  • a distinctly disc-shaped, slow-running motor 4 is significantly more compact, quieter, lower-maintenance and more energy efficient.
  • the motor 4 can be particularly advantageously designed as a multi-pole axial flux motor.
  • FIG. 2 such a motor is illustrated as an asymmetrical (one sided) axial flow motor. It is designed as a synchronous motor and consists of a stator 5 and a rotor 6 .
  • a torque, and thus rotational motion, is generated in the permanent magnets 7 fixed to the rotor 6 by applying a rotating field to the coils 8 .
  • the torque can be transferred via the shaft 9 .
  • FIG. 3 shows an analogous device in the form of a symmetrical structured double-sided axial flow device. Also suitable for the above purpose is the use of a permanent magnet synchronous device according to the external rotor principle (see FIG. 4 ). Characteristic of both engine variants is the cavity between the rotor and stator.
  • the gap between the rotor and stator is in this case a particularly good way to house one or more pumps for transporting the heat conducting medium.
  • FIG. 5 shows how to put a pump system in an annular groove on the stator 5 according to the traveling wave principle.
  • the cam 10 By the rotational movement of the rotor 6 , the cam 10 periodically passes over the membrane assembly 11 , whereby a liquid or gaseous medium can be conveyed via the connections 12 and 13 .
  • the cross-section of the tubular membrane arrangement 11 corresponds to the arrangement described in the European patent EP 1317626 B1.
  • the pump can be operated virtually without wear and is virtually maintenance-free, quiet and efficient. In accordance with the principle of the traveling wave pump, no seals on moving parts are needed. Since little friction occurs between the cam 10 and diaphragm assembly 11 , the components involved are hardly subject to wear.
  • this pump arrangement can work by displacement or as a flow pump (e.g., via adjustable cam height), a wide range of pressure levels, for example in the range from 10 mbar to 20 bar, can be realized. Further, a not shown means for providing a variable magnetic field is provided.
  • FIG. 6 shows a further development of the arrangement with two independent media circulations via another concentric membrane assembly 14 and another cam 15 . Via the connections 16 and 17 another media circuit can operate. Furthermore, FIG. 6 shows that the membrane assemblies 11 and 14 would also be possible in different cross-sections (widths, heights). Therewith, for example, the different radial rotational speeds of the cam can be compensated to achieve the same flow rates in both circuits. However other mixed modes with different flow rates or pressure levels can be realized.
  • FIG. 7 shows a further development of the previous arrangement for a symmetrical (two-sided) designed axial flow, which as stated above can be realized in different variants.
  • FIG. 8 shows radially a circumferentially segmented arrangement. Segmentation can be implemented in any number and shape.
  • FIG. 9 shows an arrangement with a plurality of cams per orbit (any number and shape imaginable).
  • FIG. 10 shows further locations for the membrane assemblies.
  • FIG. 11 shows analogous conceivable positions of membrane assemblies in a permanent magnet synchronous machine according to the external rotor principle.
  • the pump system is merely exemplary housed in the gap between the rotor and the stator. Basically, the pump system can be arranged between any relatively moving components of the pump assembly or the drive unit. Further, the motor can be positioned to the side of the assembly or be integrated within the assembly at any point. In this respect, there results an integrated implementation with small space.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

A pump arrangement having a unit which comprises a material with a magnetocaloric action, an arrangement of conduits which are in the region of the unit and through which a liquid or gaseous heat-conduction medium flows and a pump system operating according to travelling-wave principles.

Description

  • Devices using the “magnetocaloric effect” phenomenon to work as heat pumps have been known for quite some time. In these devices, materials which have the magnetocaloric effect are periodically exposed to a magnetic field. Under the influence of the magnetic field, the specific heat capacity or thermal storage capacity of the material changes.
  • By supplying and discharging media (gases, liquids), the device may be supplied with thermal energy, which can be transformed to a different temperature level and then be discharged. For the supply and discharge of media, pump systems are required. These pump systems must operate with low-maintenance and good efficiency. In the following, a pump system is disclosed which is particularly well suited for this application.
    • STATE OF THE ART
  • FIG. 1 shows an assembly 1, to which a medium having a temperature δ1 is supplied, and from which a medium with temperature δ2 is discharged. In order to produce the effect of temperature transformation, preferably rotary energy is input into such an assembly. Due to the relatively large thermal time constants of the components used in the units, the rotational frequency of the rotational motion induced in the assembly by external drives must be low (in particular between 0.5 Hz and 20 Hz, preferably in the range of 1 Hz to 10 Hz). These external drives can be formed, for example, by a combination of distinctly faster running, generally cylindrical shaped, electric motor 2 and a reduction gear 3.
  • A distinctly disc-shaped, slow-running motor 4 is significantly more compact, quieter, lower-maintenance and more energy efficient. The motor 4 can be particularly advantageously designed as a multi-pole axial flux motor. In FIG. 2, such a motor is illustrated as an asymmetrical (one sided) axial flow motor. It is designed as a synchronous motor and consists of a stator 5 and a rotor 6. A torque, and thus rotational motion, is generated in the permanent magnets 7 fixed to the rotor 6 by applying a rotating field to the coils 8. The torque can be transferred via the shaft 9. FIG. 3 shows an analogous device in the form of a symmetrical structured double-sided axial flow device. Also suitable for the above purpose is the use of a permanent magnet synchronous device according to the external rotor principle (see FIG. 4). Characteristic of both engine variants is the cavity between the rotor and stator.
    • DESCRIPTION OF THE INVENTION
  • The gap between the rotor and stator is in this case a particularly good way to house one or more pumps for transporting the heat conducting medium.
  • Considering the optimal spatial and functional integration of the entire assembly and in view of the set drive characteristics with the low speed, it has been shown to be advantageous to make use of pump systems working on the traveling wave principle. Such pump systems are described for example in the European patent EP 1317626 B1.
  • FIG. 5 shows how to put a pump system in an annular groove on the stator 5 according to the traveling wave principle. By the rotational movement of the rotor 6, the cam 10 periodically passes over the membrane assembly 11, whereby a liquid or gaseous medium can be conveyed via the connections 12 and 13. The cross-section of the tubular membrane arrangement 11 corresponds to the arrangement described in the European patent EP 1317626 B1. The pump can be operated virtually without wear and is virtually maintenance-free, quiet and efficient. In accordance with the principle of the traveling wave pump, no seals on moving parts are needed. Since little friction occurs between the cam 10 and diaphragm assembly 11, the components involved are hardly subject to wear. As this pump arrangement can work by displacement or as a flow pump (e.g., via adjustable cam height), a wide range of pressure levels, for example in the range from 10 mbar to 20 bar, can be realized. Further, a not shown means for providing a variable magnetic field is provided.
  • FIG. 6 shows a further development of the arrangement with two independent media circulations via another concentric membrane assembly 14 and another cam 15. Via the connections 16 and 17 another media circuit can operate. Furthermore, FIG. 6 shows that the membrane assemblies 11 and 14 would also be possible in different cross-sections (widths, heights). Therewith, for example, the different radial rotational speeds of the cam can be compensated to achieve the same flow rates in both circuits. However other mixed modes with different flow rates or pressure levels can be realized.
  • Similarly, further, in particular concentric, arrangements for other circuits are conceivable and possible.
  • FIG. 7 shows a further development of the previous arrangement for a symmetrical (two-sided) designed axial flow, which as stated above can be realized in different variants.
  • FIG. 8 shows radially a circumferentially segmented arrangement. Segmentation can be implemented in any number and shape.
  • FIG. 9 shows an arrangement with a plurality of cams per orbit (any number and shape imaginable).
  • FIG. 10 shows further locations for the membrane assemblies.
  • FIG. 11 shows analogous conceivable positions of membrane assemblies in a permanent magnet synchronous machine according to the external rotor principle.
  • If a motor of a different design, for example by the internal rotor principle is used, the considerations are analogous between two plane-parallel plates or between respective radial hollow spaces between an inner and an outer wall of two cylindrical assemblies in or on the magnetocaloric unit.
  • In particular, it may be provided that, to improve efficiency of the arrangements, measures may be taken to reduce the friction and in particular between the membrane 11, 14 and the cams 10, 15. To that extent, the already low friction be further improved by the provision of rollers or by improving the sliding property - for example by coating the membrane 11, 14 respectively or the cams 10, 15.
  • The disclosed embodiments of the invention can be combined. They are each an example, of which individual features of the embodiments by themselves are or may be essential to the invention. In addition, the pump system is merely exemplary housed in the gap between the rotor and the stator. Basically, the pump system can be arranged between any relatively moving components of the pump assembly or the drive unit. Further, the motor can be positioned to the side of the assembly or be integrated within the assembly at any point. In this respect, there results an integrated implementation with small space.

Claims (8)

1. A pump arrangement comprising a device with a material having a magnetocaloric effect, a conduit arranged in the area of the device through which a liquid or gaseous heat transfer medium flows, and a pump system operating on the traveling wave principle.
2. A pump arrangement according to claim 1, wherein the pump system is provided spatially integrated into the working unit.
3. A pump arrangement according to claim 1, wherein characterized in that the working unit has a rotating working electrical motor having a rotor and a stator and wherein the pump system is at least partially integrated in a space formed between the rotor and the stator of the electrical motor.
4. A pump arrangement according to claim 1, wherein means are provided for periodically providing a magnetic field.
5. A method for conveying a heat conducting medium through an arrangement with a material having the magnetocaloric effect, comprising rotationally operating, at a rotational frequency in the range of 0.2 Hz to 20 Hz, a pump system operating on the traveling wave principle and conveying the heat conducting medium.
6. The method according to claim 5, wherein the material which has the magnetocaloric effect is periodically subjected to a magnetic field.
7. (canceled)
8. A method for conveying a heat conducting medium through an arrangement with a material having the magnetocaloric effect, comprising rotationally operating, at a rotational frequency in the range of 1 Hz to 10 Hz, a pump system operating on the traveling wave principle and conveying the heat conducting medium.
US14/787,045 2013-05-23 2014-05-20 Pump arrangement Abandoned US20160090979A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102013105288.6 2013-05-23
DE102013105288 2013-05-23
PCT/DE2014/100171 WO2014187447A1 (en) 2013-05-23 2014-05-20 Pump arrangement

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2014/100171 A-371-Of-International WO2014187447A1 (en) 2013-05-23 2014-05-20 Pump arrangement

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US16/157,570 Division US20190048866A1 (en) 2013-05-23 2018-10-11 Pump arrangement

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US20160090979A1 true US20160090979A1 (en) 2016-03-31

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US14/787,045 Abandoned US20160090979A1 (en) 2013-05-23 2014-05-20 Pump arrangement
US16/157,570 Abandoned US20190048866A1 (en) 2013-05-23 2018-10-11 Pump arrangement

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US (2) US20160090979A1 (en)
EP (1) EP2999886B1 (en)
JP (1) JP2016520170A (en)
KR (1) KR20160012981A (en)
CN (1) CN105164416B (en)
PL (1) PL2999886T3 (en)
WO (1) WO2014187447A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017162243A1 (en) 2016-03-24 2017-09-28 Hanning Elektro-Werke Gmbh & Co. Kg Drive unit
DE102020105915A1 (en) 2020-03-05 2021-09-09 Schaeffler Technologies AG & Co. KG Axial flux motor and driverless transport vehicle

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US2123781A (en) * 1936-06-16 1938-07-12 Charles J Huber Pump
US3105447A (en) * 1961-08-28 1963-10-01 Ruppert Robert Gene Pump construction
US3279388A (en) * 1963-09-30 1966-10-18 Philippe R L Roudaut Semi-rotary magnetic device
US3479960A (en) * 1966-12-26 1969-11-25 Magnesita Sa Encased electric pump
US3511583A (en) * 1968-09-24 1970-05-12 Gen Motors Corp Magnetic fluid actuating pump
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US4767378A (en) * 1985-08-01 1988-08-30 Siemens Aktiengesellschaft Frontal magnet coupling with integrated magnetic bearing load relief
US4968229A (en) * 1988-08-16 1990-11-06 Fresenius Ag Pressure infusion apparatus
US5011380A (en) * 1989-01-23 1991-04-30 University Of South Florida Magnetically actuated positive displacement pump
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US20070144181A1 (en) * 2002-12-24 2007-06-28 Andrej Kitanovski Method and device for continuous generation of cold and heat by means of the magneto-calorific effect
US8353685B2 (en) * 2003-01-28 2013-01-15 Capitalbio Corporation Method for fluid transfer and the micro peristaltic pump
US20050120720A1 (en) * 2003-12-04 2005-06-09 Chih-Hsing Fang Reciprocating and rotary magnetic refrigeration apparatus
US20070247017A1 (en) * 2004-05-29 2007-10-25 University Of Durham Axial-Flux, Permanent Magnet Electrical Machine
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US8376720B2 (en) * 2010-03-05 2013-02-19 GM Global Technology Operations LLC Outer ring driven gerotor pump
US20130298571A1 (en) * 2011-01-27 2013-11-14 Denso Corporation Magnetic refrigeration system and vehicle air conditioning device
US20140037480A1 (en) * 2011-04-21 2014-02-06 Sis-Ter S.P.A. Tubular insert for extra-corporeal circuit
US20130020410A1 (en) * 2011-07-21 2013-01-24 G.B.D. Corp. Method and apparatus to deliver a fluid mixture
US20130177463A1 (en) * 2012-01-11 2013-07-11 Cheshire Electric Company, Llc Precision peristaltic metering pump and device thereof
US20140029027A1 (en) * 2012-07-27 2014-01-30 Kyocera Document Solutions Inc. Color Adjustment Apparatus, Color Adjustment Method, and Non-Transitory Computer-Readable Recording Medium Storing a Color Adjustment Program
US9746214B2 (en) * 2012-12-17 2017-08-29 Astronautics Corporation Of America Use of unidirectional flow modes of magnetic cooling systems
US20140290273A1 (en) * 2013-03-29 2014-10-02 General Electric Company Conduction based magneto caloric heat pump
US9534817B2 (en) * 2013-03-29 2017-01-03 General Electric Company Conduction based magneto caloric heat pump
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JP2016520170A (en) 2016-07-11
PL2999886T3 (en) 2018-08-31
US20190048866A1 (en) 2019-02-14
WO2014187447A1 (en) 2014-11-27
CN105164416B (en) 2018-02-02
CN105164416A (en) 2015-12-16
EP2999886A1 (en) 2016-03-30
EP2999886B1 (en) 2018-03-14

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