WO2010133284A1 - Fluidized-bed heat exchanger - Google Patents
Fluidized-bed heat exchanger Download PDFInfo
- Publication number
- WO2010133284A1 WO2010133284A1 PCT/EP2010/002469 EP2010002469W WO2010133284A1 WO 2010133284 A1 WO2010133284 A1 WO 2010133284A1 EP 2010002469 W EP2010002469 W EP 2010002469W WO 2010133284 A1 WO2010133284 A1 WO 2010133284A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heat exchanger
- sections
- tubes
- fluidized
- exchanger tubes
- Prior art date
Links
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
- F28D13/00—Heat-exchange apparatus using a fluidised bed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/007—Auxiliary supports for elements
- F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
- F28F9/0132—Auxiliary supports for elements for tubes or tube-assemblies formed by slats, tie-rods, articulated or expandable rods
Definitions
- This invention relates to a heat exchanger comprising a bundle of substantially parallel heat exchanger tubes for use in a primarily stationary fluidized bed, in which solid particles are put into a fluidized condition by supplying a fluid or gas stream, for heating or cooling the fluidized solids and the medium in the tubes.
- a fluid or gas stream in particular fluidizing air, in which a close contact occurs between the fluidized material and the fluidizing medium.
- the fluidizing air generally is introduced into the solids bed from below through a gas distributor, in order to achieve a uniform fluidization.
- a treatment of the fluidized material then is effected by heat and/or mass transfer, before the same is withdrawn from the fluidized bed.
- the heat or mass transfer is influenced by the bubble size of the fluidizing air introduced into the fluidized bed.
- a shell-and-tube heat exchanger in the same, through which a heating or cooling medium is passed, in order to heat or cool the fluidized material.
- these tube bundles consist of few, relatively large heat exchanger tubes, in order to avoid clogging of the bundles.
- the heat exchanger tubes influence the flow of the fluidizing air in the fluidized bed.
- this object substantially is solved with the invention in that the horizontal clear tube spacings lie in the range from 10 to 30 mm, preferably 12 to 20 mm, and that the vertical clear tube spacings are 15 to 50 mm, preferably 20 to 30 mm.
- the diameter of the heat exchanger tubes should be about 15 to 50 mm, preferably between about 20 and 30 mm.
- the heat exchanger tubes can be connected with the sections via holders, wherein the heat exchanger tubes preferably are held in recesses of the sections, in order to achieve a more stable attachment and reduce the width of the heat exchanger.
- the sections are connected with each other via the clampings, wherein the clampings in particular are welded to the holders and/or the sections. This results in a very stiff heat ex- changer tube bundle of relatively great weight, which the bed frequencies no longer can induce to oscillate.
- round tubes can be used for the heat exchanger tubes and square sections can be used for the stiffening sections.
- This invention also relates to a fluidized-bed reactor with a heat exchanger of the type of the invention as explained above.
- a fluidized-bed reactor with a heat exchanger of the type of the invention as explained above.
- the two essential effects are achieved, according to which on the one hand the heat transfer is improved and as a result the heat exchanger can become smaller, and on the other hand the product efficiency can be increased by reducing the fluidized produced discharged as a result of the small bubble energy.
- Fig. 1 shows a vertical section through a heat exchanger bundle of the invention
- Fig. 2 shows a partial top view of the heat exchanger bundle of the invention.
- the heat exchanger in accordance with the invention includes a bundle 1 with heat exchanger tubes 2 extending substantially parallel to each other for use in a stationary fluidized bed.
- the heat exchanger tubes 2 can be charged with a heating or cooling medium.
- the heat exchanger tubes 2 are arranged in several rows preferably offset with respect to each other.
- the horizontal clear tube spacings Ah lie in the range from 10 to 30 mm, preferably 12 to 20 mm, and the vertical clear tube spacings Av are 15 to 50 mm, preferably 20 to 30 mm.
- the horizontal tube pitch (Th) and vertical tube pitch (Tv) as indicated in the drawing are the spacings of the longitudinal tube axes. They are obtained by determining the clear tube spacings and the tube diameters.
- the diameter of the heat exchanger tubes should be about 15 to 50 mm, preferably between about 20 and 30 mm.
- the heat exchanger tubes 2 in the bundle 1 are clamped via holders 4 by means of square sections 3 extending substantially vertical to the heat transfer tubes 2.
- the clamping effect is obtained by the welding seams 5.
- the sections 3 include half-round recesses 6, into which the heat exchanger tubes 2 each are inserted with half their circumference. Adjacent sections 3 are connected with each other via clampings 7, which preferably are welded to the holders 4.
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)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EA201190288A EA201190288A1 (en) | 2009-05-16 | 2010-04-22 | HEAT EXCHANGER WITH A PSEEDBLATED LAYER |
BRPI1012208A BRPI1012208A2 (en) | 2009-05-16 | 2010-04-22 | fluidized bed heat exchanger |
AU2010251492A AU2010251492A1 (en) | 2009-05-16 | 2010-04-22 | Fluidized-bed heat exchanger |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009021661.8 | 2009-05-16 | ||
DE200910021661 DE102009021661A1 (en) | 2009-05-16 | 2009-05-16 | Fluidized bed heat exchanger |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010133284A1 true WO2010133284A1 (en) | 2010-11-25 |
Family
ID=42555647
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2010/002469 WO2010133284A1 (en) | 2009-05-16 | 2010-04-22 | Fluidized-bed heat exchanger |
Country Status (5)
Country | Link |
---|---|
AU (1) | AU2010251492A1 (en) |
BR (1) | BRPI1012208A2 (en) |
DE (1) | DE102009021661A1 (en) |
EA (1) | EA201190288A1 (en) |
WO (1) | WO2010133284A1 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8597600B2 (en) | 2007-05-21 | 2013-12-03 | Orbite Aluminae Inc. | Processes for extracting aluminum from aluminous ores |
US9023301B2 (en) | 2012-01-10 | 2015-05-05 | Orbite Aluminae Inc. | Processes for treating red mud |
US9150428B2 (en) | 2011-06-03 | 2015-10-06 | Orbite Aluminae Inc. | Methods for separating iron ions from aluminum ions |
US9181603B2 (en) | 2012-03-29 | 2015-11-10 | Orbite Technologies Inc. | Processes for treating fly ashes |
US9260767B2 (en) | 2011-03-18 | 2016-02-16 | Orbite Technologies Inc. | Processes for recovering rare earth elements from aluminum-bearing materials |
US9290828B2 (en) | 2012-07-12 | 2016-03-22 | Orbite Technologies Inc. | Processes for preparing titanium oxide and various other products |
US9353425B2 (en) | 2012-09-26 | 2016-05-31 | Orbite Technologies Inc. | Processes for preparing alumina and magnesium chloride by HCl leaching of various materials |
US9382600B2 (en) | 2011-09-16 | 2016-07-05 | Orbite Technologies Inc. | Processes for preparing alumina and various other products |
US9410227B2 (en) | 2011-05-04 | 2016-08-09 | Orbite Technologies Inc. | Processes for recovering rare earth elements from various ores |
US9534274B2 (en) | 2012-11-14 | 2017-01-03 | Orbite Technologies Inc. | Methods for purifying aluminium ions |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3345235A1 (en) * | 1983-12-14 | 1985-06-20 | Sulzer-Escher Wyss GmbH, 7980 Ravensburg | Fluidised bed having a heat exchanger arrangement |
US4796691A (en) * | 1985-04-24 | 1989-01-10 | Charbonnages De France | Fluidized bed heat exchange apparatus |
US5404941A (en) * | 1993-08-10 | 1995-04-11 | The Babcock & Wilcox Company | Split ring tube spacer assembly |
US20020074107A1 (en) * | 2000-10-26 | 2002-06-20 | Becker Stanley John | Apparatus & process for heat exchange with fluid beds |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3167387D1 (en) * | 1980-03-28 | 1985-01-10 | Peabody Encomech | Heat exchange apparatus |
-
2009
- 2009-05-16 DE DE200910021661 patent/DE102009021661A1/en not_active Withdrawn
-
2010
- 2010-04-22 BR BRPI1012208A patent/BRPI1012208A2/en not_active IP Right Cessation
- 2010-04-22 AU AU2010251492A patent/AU2010251492A1/en not_active Abandoned
- 2010-04-22 WO PCT/EP2010/002469 patent/WO2010133284A1/en active Application Filing
- 2010-04-22 EA EA201190288A patent/EA201190288A1/en unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3345235A1 (en) * | 1983-12-14 | 1985-06-20 | Sulzer-Escher Wyss GmbH, 7980 Ravensburg | Fluidised bed having a heat exchanger arrangement |
US4796691A (en) * | 1985-04-24 | 1989-01-10 | Charbonnages De France | Fluidized bed heat exchange apparatus |
US5404941A (en) * | 1993-08-10 | 1995-04-11 | The Babcock & Wilcox Company | Split ring tube spacer assembly |
US20020074107A1 (en) * | 2000-10-26 | 2002-06-20 | Becker Stanley John | Apparatus & process for heat exchange with fluid beds |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8597600B2 (en) | 2007-05-21 | 2013-12-03 | Orbite Aluminae Inc. | Processes for extracting aluminum from aluminous ores |
US9945009B2 (en) | 2011-03-18 | 2018-04-17 | Orbite Technologies Inc. | Processes for recovering rare earth elements from aluminum-bearing materials |
US9260767B2 (en) | 2011-03-18 | 2016-02-16 | Orbite Technologies Inc. | Processes for recovering rare earth elements from aluminum-bearing materials |
US9410227B2 (en) | 2011-05-04 | 2016-08-09 | Orbite Technologies Inc. | Processes for recovering rare earth elements from various ores |
US9150428B2 (en) | 2011-06-03 | 2015-10-06 | Orbite Aluminae Inc. | Methods for separating iron ions from aluminum ions |
US9382600B2 (en) | 2011-09-16 | 2016-07-05 | Orbite Technologies Inc. | Processes for preparing alumina and various other products |
US10174402B2 (en) | 2011-09-16 | 2019-01-08 | Orbite Technologies Inc. | Processes for preparing alumina and various other products |
US9023301B2 (en) | 2012-01-10 | 2015-05-05 | Orbite Aluminae Inc. | Processes for treating red mud |
US9556500B2 (en) | 2012-01-10 | 2017-01-31 | Orbite Technologies Inc. | Processes for treating red mud |
US9181603B2 (en) | 2012-03-29 | 2015-11-10 | Orbite Technologies Inc. | Processes for treating fly ashes |
US9290828B2 (en) | 2012-07-12 | 2016-03-22 | Orbite Technologies Inc. | Processes for preparing titanium oxide and various other products |
US9353425B2 (en) | 2012-09-26 | 2016-05-31 | Orbite Technologies Inc. | Processes for preparing alumina and magnesium chloride by HCl leaching of various materials |
US9534274B2 (en) | 2012-11-14 | 2017-01-03 | Orbite Technologies Inc. | Methods for purifying aluminium ions |
Also Published As
Publication number | Publication date |
---|---|
AU2010251492A1 (en) | 2012-01-19 |
EA201190288A1 (en) | 2012-05-30 |
BRPI1012208A2 (en) | 2016-04-05 |
DE102009021661A1 (en) | 2010-11-25 |
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