FI20115798A0 - Improvement of heat transfer from a fluid bed to a heat exchanger tube - Google Patents

Improvement of heat transfer from a fluid bed to a heat exchanger tube

Info

Publication number
FI20115798A0
FI20115798A0 FI20115798A FI20115798A FI20115798A0 FI 20115798 A0 FI20115798 A0 FI 20115798A0 FI 20115798 A FI20115798 A FI 20115798A FI 20115798 A FI20115798 A FI 20115798A FI 20115798 A0 FI20115798 A0 FI 20115798A0
Authority
FI
Finland
Prior art keywords
heat exchanger
dimension
fluidized bed
exchanger pipe
improvement
Prior art date
Application number
FI20115798A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI20115798L (en
Inventor
Mikko Varonen
Original Assignee
Metso Power Oy
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 Metso Power Oy filed Critical Metso Power Oy
Priority to FI20115798A priority Critical patent/FI20115798L/en
Publication of FI20115798A0 publication Critical patent/FI20115798A0/en
Priority to PCT/FI2012/050775 priority patent/WO2013024201A1/en
Publication of FI20115798L publication Critical patent/FI20115798L/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C10/00—Fluidised bed combustion apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C10/00—Fluidised bed combustion apparatus
    • F23C10/02—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed
    • F23C10/12—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated exclusively within the combustion zone
    • F23C10/14—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated exclusively within the combustion zone the circulating movement being promoted by inducing differing degrees of fluidisation in different parts of the bed
    • 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
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/14—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2206/00—Fluidised bed combustion

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)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)

Abstract

The use of a heat exchanger pipe (300) in the fluidized bed of a fluidized bed boiler. The heat exchanger pipe (300) has a first dimension (dmax) in its crosssectional plane and a second dimension (dmin) in a direction transverse to the first dimension, the first dimension being greater than the second dimension. At least part of the heat exchanger pipe (300) is placed in a fluidized bed (100, 136, 133, 139, 130, 145) in such a way that the longitudinal direction of the pipe is at an angle smaller than 60 degrees to the horizontal plane. Said second dimension (dmin) is horizontal. The cross-section of the heat exchanger pipe (300) tapers towards the upper and lower edges. Furthermore, a fluidized bed boiler is presented for implementing said use. Moreover, a method is presented for heating a heat transfer fluid by a granular solid substance. In the method, a fluidized bed is formed of said solid substance in the fluidized bed boiler, and the heat exchanger pipe is used in the described manner.
FI20115798A 2011-08-15 2011-08-15 Improving heat transfer from the fluidized bed to the heat exchanger tube FI20115798L (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FI20115798A FI20115798L (en) 2011-08-15 2011-08-15 Improving heat transfer from the fluidized bed to the heat exchanger tube
PCT/FI2012/050775 WO2013024201A1 (en) 2011-08-15 2012-08-08 Improvement of heat transfer from a fluidized bed to a heat exchanger pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20115798A FI20115798L (en) 2011-08-15 2011-08-15 Improving heat transfer from the fluidized bed to the heat exchanger tube

Publications (2)

Publication Number Publication Date
FI20115798A0 true FI20115798A0 (en) 2011-08-15
FI20115798L FI20115798L (en) 2013-02-16

Family

ID=44515432

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20115798A FI20115798L (en) 2011-08-15 2011-08-15 Improving heat transfer from the fluidized bed to the heat exchanger tube

Country Status (2)

Country Link
FI (1) FI20115798L (en)
WO (1) WO2013024201A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2930827A1 (en) * 2016-05-25 2017-11-25 Nova Chemicals Corporation Furnace coil modified fins
KR101876547B1 (en) * 2017-01-13 2018-07-09 정이영 A refrigeration pipe with defrost function

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1602081B1 (en) * 1967-03-04 1970-05-27 Huettenwerk Oberhausen Ag Device for the heat treatment of metallic material, in particular wire rod
US4270599A (en) * 1978-09-29 1981-06-02 Foster Wheeler Energy Corporation Tube support structure for a fluidized bed heat exchanger
US4466479A (en) * 1982-08-19 1984-08-21 Texaco Inc. Method of transferring heat between two fluids and heat exchange tube
DE3828646A1 (en) * 1988-08-24 1990-03-01 Steinmueller Gmbh L & C Heating surface for coupling out heat from a fluid flow loaded with solid particles

Also Published As

Publication number Publication date
FI20115798L (en) 2013-02-16
WO2013024201A1 (en) 2013-02-21

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Legal Events

Date Code Title Description
FD Application lapsed