EP0053586B1 - Echangeur de chaleur rotatif - Google Patents

Echangeur de chaleur rotatif Download PDF

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Publication number
EP0053586B1
EP0053586B1 EP81830228A EP81830228A EP0053586B1 EP 0053586 B1 EP0053586 B1 EP 0053586B1 EP 81830228 A EP81830228 A EP 81830228A EP 81830228 A EP81830228 A EP 81830228A EP 0053586 B1 EP0053586 B1 EP 0053586B1
Authority
EP
European Patent Office
Prior art keywords
stator
chassis
rotor
heat exchanger
hollow cylindrical
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.)
Expired
Application number
EP81830228A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0053586A3 (en
EP0053586A2 (fr
Inventor
Ulchar A. Mamedov
Boris S. Korotkevic
Evgenii G. Timofeev
Ismail M. Basiev
Iouri A. Shmuk
Nelli I. Gleiberg
Iouri N. Krilov
Paolo Straneo
Giuseppe Golla
Carlo Chiappetti
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.)
PRESSINDUSTRIA SpA
Giprokautchuk
Original Assignee
PRESSINDUSTRIA SpA
Giprokautchuk
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 PRESSINDUSTRIA SpA, Giprokautchuk filed Critical PRESSINDUSTRIA SpA
Publication of EP0053586A2 publication Critical patent/EP0053586A2/fr
Publication of EP0053586A3 publication Critical patent/EP0053586A3/fr
Application granted granted Critical
Publication of EP0053586B1 publication Critical patent/EP0053586B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • F28D11/00—Heat-exchange apparatus employing moving conduits
    • F28D11/02—Heat-exchange apparatus employing moving conduits the movement being rotary, e.g. performed by a drum or roller
    • 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

Definitions

  • the present invention relates to a rotary heat exchanger for the treatment of viscous liquids and, in particular, polymer solutions.
  • this device has the disadvantage of not allowing the use of a scraper drum for the heat exchange surface, and; in addition, not to obtain a high efficiency of heat transport.
  • any liquid can be treated in the angular spacing between the two coaxial cylinders, of which only the inner cylinder can be rotated.
  • a heat exchanger which differs from the device, object of US-A-2001.083, is described in FR-A-838 957, essentially comprising two hollow cylindrical bodies, both connected to a fixed support structure , between which is coaxially disposed a hollow cylindrical drum carrying scraper blades.
  • This device has, however, the disadvantage that the drum is supported cantilevered by a motor shaft, which obviously puts a limit on the possibility of making devices where the length-diameter ratio is as large as possible in order to exploit them to the highest degree of their yields.
  • the object of the present invention is the production of a heat exchanger in which the drawbacks noted in apparatuses of the same kind are completely eliminated, constituting the state of the art, particularly suitable for treating viscous liquids and by which very high heat exchange coefficients can be obtained, even thanks to the remarkable extension given to the surfaces in contact with the viscous liquid.
  • the rotary heat exchanger object of this invention, which comprises a hollow cylindrical body connected to a fixed support structure, a cylindrical body located coaxially with this hollow blow, and a jacketed cylindrical stator, which is located and fixed coaxially to the same hollow cylindrical body; between said body and said fixed stator being mounted a chassis which can rotate around the same longitudinal axis of symmetry, coinciding with the longitudinal axis of said hollow cylindrical body, as well as with the longitudinal axis of said stator; said supporting frame, fixed on it and arranged to clean the internal surface of said cylindrical body and the external surface of said stator, a plurality of scraper elements which operate simultaneously on the internal wall of the cylindrical body and on the external wall of the stator and which are rotated; the rotary heat exchanger according to the invention, characterized in that the cylindrical body is a rotor driven by an external motor, that the chassis is rectangular and that the scraper elements are rotated at a substantially lower speed than the rotor.
  • the heat exchanger comprises a hollow cylindrical casing 1, joined to a fixed support structure (which is not shown in the figure), where a rotor 2 and a stator 3 are placed coaxially; the latter is equipped with a jacket, in which, if liquid refrigerant (heat conductor) is used, it is necessary to install a partition, or fins arranged in a spiral 4.
  • the rotor 2 is supported by bearings 5 (which can be ball bearings, or roller bearings, or more simply bronze bearings), and can be made to rotate around its axis of symmetry by a pulley 6.
  • bearings 5 which can be ball bearings, or roller bearings, or more simply bronze bearings
  • the chambers 7 and 8, equipped with support elements are used for sending and evacuating the viscous liquid from the device.
  • scrapers 9 are used, fixed on rectangular chassis 10 in axial section and supported empty by the hollow spindle 13 and by the shaft 13 'of the stator 3, with bearings 11.
  • the circulation of the refrigerant (heat conductor) in the annular space between the body 1 and the rotor 2 is ensured through the ducts 14 (injection) and 15 (evacuation), while that of the refrigerant (conductor of the heat) in the jacket of the stator 3, takes place through the troughs 16 injection and 17 evacuation.
  • the refrigerant (heat conductor) must be pumped into the device against the flow of the viscous liquid, and is divided into two flows: one which enters through the chute 14, flows into the peripheral space between the body 1 and the rotor 2, and leaves the device through the chute 15; the other which enters through the chute 16 and the hollow spindle 13 and exits through the chute 17.
  • a spiral wall 4 is placed in the jacket of the stator.
  • the rotation of the chassis 10 on which the scrapers are fixed is ensured in operation by the rotation of the rotor 2 and the friction between the inner surface of the rotor and the scrapers which clean this inner surface.
  • the chassis 10 Because of the resistance of the scrapers 9, which clean the surface of the stator 3, the chassis 10, with these scrapers, rotate at a lower speed than that of rotation of the rotor 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP81830228A 1980-12-03 1981-11-16 Echangeur de chaleur rotatif Expired EP0053586B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2639280 1980-12-03
IT26392/80A IT1134568B (it) 1980-12-03 1980-12-03 Scambiatore di calore rotativo

Publications (3)

Publication Number Publication Date
EP0053586A2 EP0053586A2 (fr) 1982-06-09
EP0053586A3 EP0053586A3 (en) 1982-12-22
EP0053586B1 true EP0053586B1 (fr) 1985-11-06

Family

ID=11219387

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81830228A Expired EP0053586B1 (fr) 1980-12-03 1981-11-16 Echangeur de chaleur rotatif

Country Status (3)

Country Link
EP (1) EP0053586B1 (it)
DE (1) DE3172846D1 (it)
IT (1) IT1134568B (it)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9015559D0 (en) * 1990-07-16 1990-09-05 Beckswift Ltd Heat exchange apparatus
FR2818367A1 (fr) * 2000-12-15 2002-06-21 Db Ind Appareil a enveloppes tubulaires coaxiales tel qu'un echangeur de temperature annulaire
CA2450673C (en) * 2001-06-20 2010-11-16 3L Filters Ltd. Apparatus for producing potable water and slush from sea water or brine
EP1601922B1 (en) * 2003-02-26 2007-05-09 Delta Process Engineering APS Dual scraped, thin film, heat exchanger for viscous fluid
CN105972712B (zh) * 2016-05-18 2018-10-30 谢曙晖 简约型空调外机换热器
CN108590896A (zh) * 2018-04-11 2018-09-28 盐城派威机械有限公司 一种发动机油箱加热装置及加热方法
CN112229251B (zh) * 2020-09-28 2022-03-29 山东诺环建工有限公司 一种旋转式余热回收利用装置
CN113804031A (zh) * 2021-09-14 2021-12-17 黄金琪 一种旋转式换热器

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR838957A (fr) * 1937-06-18 1939-03-21 Appareil réfrigérant
US2955026A (en) * 1955-09-21 1960-10-04 Hollings Raymond Mixer reactor with scraper
NL7016466A (it) * 1970-11-10 1972-05-15
CH590443A5 (it) * 1975-10-08 1977-08-15 Bbc Brown Boveri & Cie
US4126177A (en) * 1977-03-10 1978-11-21 Chemetron Corporation Dual scraped surface heat exchanger
JPS5560178A (en) * 1978-10-27 1980-05-07 Takeuchi Yutaka Device for cooling viscous liquid

Also Published As

Publication number Publication date
DE3172846D1 (en) 1985-12-12
EP0053586A3 (en) 1982-12-22
IT1134568B (it) 1986-08-13
IT8026392A0 (it) 1980-12-03
EP0053586A2 (fr) 1982-06-09

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