US20140209274A1 - Self-pumping heat exchange unit - Google Patents

Self-pumping heat exchange unit Download PDF

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Publication number
US20140209274A1
US20140209274A1 US14/047,712 US201314047712A US2014209274A1 US 20140209274 A1 US20140209274 A1 US 20140209274A1 US 201314047712 A US201314047712 A US 201314047712A US 2014209274 A1 US2014209274 A1 US 2014209274A1
Authority
US
United States
Prior art keywords
heat exchange
exchange unit
self
pumping
inner tube
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
US14/047,712
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English (en)
Inventor
Marcos Antonio ALARCON GONZALEZ
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.)
HRS Investments Ltd
Original Assignee
HRS Investments Ltd
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 HRS Investments Ltd filed Critical HRS Investments Ltd
Assigned to HRS INVESTMENTS, LTD. reassignment HRS INVESTMENTS, LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ALARCON GONZALEZ, MARCOS ANTONIO
Publication of US20140209274A1 publication Critical patent/US20140209274A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G3/00—Rotary appliances
    • F28G3/08—Rotary appliances having coiled wire tools, i.e. basket type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G3/00—Rotary appliances
    • F28G3/10—Rotary appliances having scrapers, hammers, or cutters, e.g. rigidly mounted
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • F28F13/12—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
    • F28F13/125—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation by stirring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F28F19/008—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using scrapers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0042—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for foodstuffs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
    • F28F2250/08—Fluid driving means, e.g. pumps, fans

Definitions

  • the present invention belongs to the field of heat exchange apparatuses, and more specifically to machines for heat exchange between fluids having the same or different characteristics, applicable in different sectors, such as the food sector, pharmaceutical sector, health sector, etc.
  • the main object of the present invention is a heat exchange unit which fundamentally stands out because it provides a self-pumping effect and keeps the exchange surface clean at all times, improving the heat transfer coefficient and allowing a substantial reduction in head losses through its inner and outer tubes.
  • Machines for heat exchange between fluids which generally have at least one inner tube through which the “product fluid”, i.e., fluid to be heated or cooled, circulates and an outer tube or shell, through which the “service fluid”, i.e., heat transfer fluid, circulates are known today.
  • heat exchangers the inner conduits of which are provided with cleaning means, thus providing a self-cleaning effect on their inner surface and allowing maintenance and a prolonged service life of said heat exchangers, reducing the dead time thereof, are known in the current state of the art.
  • An example of the aforementioned exchangers can be found in Spanish patent application ES2158752.
  • current machines for heat exchange between fluids have several problems and drawbacks among which the following stand out:
  • the present invention solves the aforementioned drawbacks by providing a self-pumping heat exchange unit which successfully reduces head loss through its conduits, substantially optimizing the heat transfer coefficient, and also allowing regulating and obtaining different pumping flow rates for the product fluid, i.e., fluid to be heated or cooled.
  • the heat exchange unit object of the invention is of the type comprising an outer shell provided with an inlet and an outlet for a “service” fluid, i.e., a heat carrier fluid, being able to be glycol or cold water vapor, thermal oil, etc.; at least one hollow inner tube housed inside the outer shell and also linked to an inlet and an outlet for a product fluid, i.e., fluid to be heated or cooled; an elongated rotary rod arranged inside the at least one inner tube and having cleaning means for cleaning the inner wall of the at least one inner tube
  • a “service” fluid i.e., a heat carrier fluid
  • a product fluid i.e., fluid to be heated or cooled
  • an elongated rotary rod arranged inside the at least one inner tube and having cleaning means for cleaning the inner wall of the at least one inner tube
  • the heat exchange unit described herein stands out fundamentally because it additionally comprises: scraping elements linked to the rotary rod and suitable for scraping and detaching the product fluid accumulated or fixed on the inner wall of the at least one inner tube; and an endless spiral also linked to the rotary rod, dimensionally suitable for running along and surrounding the rod longitudinally through the spaces existing between the scraping elements, said endless spiral being suitable for displacement of the product fluid circulating through the at least one inner tube, generating a self-pumping effect.
  • the scraping elements preferably have an elongated planar configuration, thus allowing covering the entire the inner surface of the inner tubes, increasing cleaning efficiency.
  • the heat exchange unit comprises three inner tubes. So by means of varying the rotational speed of the rods existing in the inner tubes, and therefore of the endless spiral, it is possible to achieve different pumping flow rates for the product fluid circulating through said inner tubes, which allows improving the heat transfer coefficient and reducing the head losses generated by friction of the actual inner walls of the tubes.
  • the heat exchange unit herein described has been envisaged to be applicable in the food sector, health sector, environmental sector or industrial sector. It can be also used as a regenerative unit, i.e., using one and the same product fluid in both parts of the unit, namely, the shell and the inner tubes, thus recovering the actual energy of the product fluid.
  • the present invention provides a heat exchange unit which, in addition to efficiently removing residues from the inner wall of the tubes, reducing head loss and substantially improving the heat transfer coefficient, also stands out for obtaining a “self-pumping effect” of the product fluid circulating through said inner tubes, which makes it possible for the requirements of the outer pump to be lower, even to the extent of being able to dispense with said outer pump in some cases, being a more efficient, economical and viable alternative solution than the self-cleaning systems of current heat exchangers.
  • FIG. 1 shows a general perspective view of the self-pumping heat exchange unit object of the invention.
  • FIG. 2 shows a perspective view of the shell of the exchange unit of the invention, with its inlets and outlets for the service fluid, three inner tubes being seen according to this embodiment.
  • FIG. 3 shows a perspective view of one of the rods arranged internally inside each of the three inner tubes of FIG. 2 .
  • FIG. 4 shows a detailed view of the gears for driving each of the rods existing inside the inner tubes.
  • FIG. 1 shows a general view of the self-pumping heat exchange unit ( 1 ) which comprises:
  • the heat exchange unit ( 1 ) additionally comprises a main geared motor ( 60 ) connected through a central shaft ( 70 ), shown in FIG. 4 , with a main gear ( 71 ) made of stainless steel, the latter is in turn connected with secondary gears ( 72 ) which are linked to the ends of each of the rotary rods ( 30 ), as shown in FIG. 3 .
  • Said secondary gears ( 72 ), depicted in FIGS. 3 and 4 are manufactured from a plastic material, such that in addition to acting as a safety fuse element, it allows preventing the irritating noise generally produced by the transmissions of the gears.
  • FIG. 1 also shows an auxiliary geared motor ( 80 ) which is coupled to the main geared motor ( 60 ) and which allows separating the heat exchange unit into two blocks when connected with a threaded screw and a nut for a quick, simple and comfortable opening of the heat exchange unit ( 1 ), facilitating inspection and/or maintenance tasks by qualified personnel.
  • the unit incorporates a lower frame ( 90 ), also shown in FIG. 1 , making up the base support of the heat exchange unit ( 1 ), and which in the present embodiment further comprises an additional telescopic prolongation ( 91 ) provided with wheels ( 92 ) in the lower portion, thus facilitating its movement and allowing it to take up minimum space.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Cleaning In General (AREA)
US14/047,712 2013-01-25 2013-10-07 Self-pumping heat exchange unit Abandoned US20140209274A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ESP201330088 2013-01-25
ES201330088A ES2481190B1 (es) 2013-01-25 2013-01-25 Unidad de intercambio térmico autobombeante

Publications (1)

Publication Number Publication Date
US20140209274A1 true US20140209274A1 (en) 2014-07-31

Family

ID=50068953

Family Applications (1)

Application Number Title Priority Date Filing Date
US14/047,712 Abandoned US20140209274A1 (en) 2013-01-25 2013-10-07 Self-pumping heat exchange unit

Country Status (4)

Country Link
US (1) US20140209274A1 (de)
EP (1) EP2759796B1 (de)
ES (2) ES2481190B1 (de)
PT (1) PT2759796T (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170367370A1 (en) * 2014-12-23 2017-12-28 Carrier Corporation Freezing Cylinder Beater

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106736328B (zh) * 2016-11-30 2021-02-09 重庆渝青机械配件制造有限公司 多纽带式扰流件加工工艺
AT519546B1 (de) * 2017-04-12 2018-08-15 Brandstetter Johann Wärmetauscher
NL2024720B1 (en) 2020-01-21 2021-09-09 Ireliemar B V Heat exchanger and use of heat exchanger

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1184612A (fr) * 1957-07-12 1959-07-23 Holo Flite Int Inc Dispositif d'échange de chaleur
US4081875A (en) * 1975-11-15 1978-04-04 Eizo Nishino Scale removal device
FR2439630A1 (fr) * 1978-10-23 1980-05-23 Montage Cie Indle Dispositif de nettoyage de tubes conduisant des gaz charges d'impuretes et d'epuration des gaz
US4240401A (en) * 1978-02-21 1980-12-23 Arvin Industries, Inc. Fireplace heat exchanger
WO2012125586A2 (en) * 2011-03-11 2012-09-20 Blentech Corporation Multi-surface heat exchange with vacuum capability and magnetic scrapers
WO2013007842A1 (es) * 2011-07-14 2013-01-17 Antonio Moreno Garcia Dispositivo intercambiador térmico mejorado para tratamiento de líquidos y otros
KR20130045231A (ko) * 2011-09-30 2013-05-03 미쓰비시덴키 가부시키가이샤 모터

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1214074A (fr) * 1958-01-22 1960-04-06 Zieren Chemiebau Gmbh Dr A Perfectionnements apportés aux procédés et dispositifs pour l'échange de chaleurentre des fluides liquides ou gazeux susceptibles de salir les surfaces d'échange dechaleur
FR2224728A1 (en) * 1973-04-09 1974-10-31 Rouchy Christian Spirally wound scraper rod - for automatic internal cleaning of heat exchanger tubes
US3848289A (en) * 1973-04-16 1974-11-19 Chemetron Corp Scraper blade
ES2158752B1 (es) 1998-07-16 2002-06-16 Hrs Spiratube S L Mejoras en intercambiadores termicos para tratamiento de liquidos.
DE102009026173A1 (de) * 2009-02-24 2010-08-26 Georg Hipp Maschinenbau Gmbh Wartungsarmer Wärmetauscher
EP2593728B1 (de) * 2010-07-12 2019-09-18 Evert Frederik Potgieter Industrieller hüllen- und rohrwärmetauscher
EP2410279A1 (de) * 2010-07-21 2012-01-25 Thomas Hipp Wartungsarmer Wärmetauscher mit rotierenden Abstreifern

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1184612A (fr) * 1957-07-12 1959-07-23 Holo Flite Int Inc Dispositif d'échange de chaleur
US4081875A (en) * 1975-11-15 1978-04-04 Eizo Nishino Scale removal device
US4240401A (en) * 1978-02-21 1980-12-23 Arvin Industries, Inc. Fireplace heat exchanger
FR2439630A1 (fr) * 1978-10-23 1980-05-23 Montage Cie Indle Dispositif de nettoyage de tubes conduisant des gaz charges d'impuretes et d'epuration des gaz
WO2012125586A2 (en) * 2011-03-11 2012-09-20 Blentech Corporation Multi-surface heat exchange with vacuum capability and magnetic scrapers
US20150083366A1 (en) * 2011-03-11 2015-03-26 Janis Zakis Multi-surface heat exchange with vacuum capability and magnetic scrapers
WO2013007842A1 (es) * 2011-07-14 2013-01-17 Antonio Moreno Garcia Dispositivo intercambiador térmico mejorado para tratamiento de líquidos y otros
KR20130045231A (ko) * 2011-09-30 2013-05-03 미쓰비시덴키 가부시키가이샤 모터

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170367370A1 (en) * 2014-12-23 2017-12-28 Carrier Corporation Freezing Cylinder Beater

Also Published As

Publication number Publication date
EP2759796A3 (de) 2015-05-27
PT2759796T (pt) 2019-07-25
ES2481190B1 (es) 2015-01-16
ES2735632T3 (es) 2019-12-19
ES2481190A1 (es) 2014-07-29
EP2759796B1 (de) 2019-06-05
EP2759796A2 (de) 2014-07-30

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Date Code Title Description
AS Assignment

Owner name: HRS INVESTMENTS, LTD., UNITED KINGDOM

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ALARCON GONZALEZ, MARCOS ANTONIO;REEL/FRAME:031620/0856

Effective date: 20130628

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION