WO2004025201A2 - Système et procédé de refroidissement et d'échange thermique régulateur, pour le contrôle et la maîtrise des températures de parois soumises à hautes températures - Google Patents
Système et procédé de refroidissement et d'échange thermique régulateur, pour le contrôle et la maîtrise des températures de parois soumises à hautes températures Download PDFInfo
- Publication number
- WO2004025201A2 WO2004025201A2 PCT/FR2003/002734 FR0302734W WO2004025201A2 WO 2004025201 A2 WO2004025201 A2 WO 2004025201A2 FR 0302734 W FR0302734 W FR 0302734W WO 2004025201 A2 WO2004025201 A2 WO 2004025201A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tubes
- wall
- water
- network
- thermal
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D9/00—Cooling of furnaces or of charges therein
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D9/00—Cooling of furnaces or of charges therein
- F27D2009/0002—Cooling of furnaces
- F27D2009/001—Cooling of furnaces the cooling medium being a fluid other than a gas
- F27D2009/0013—Cooling of furnaces the cooling medium being a fluid other than a gas the fluid being water
- F27D2009/0016—Water-spray
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/12—Heat utilisation in combustion or incineration of waste
Definitions
- the present invention relates to a cooling and regulating heat exchange system, for controlling and controlling the temperatures of walls subjected to high (and very high) temperatures, in incinerators, ovens and all thermal generators / systems.
- the temperatures tolerated by these fluids do not reach those required by the result expected by the thermal process.
- Document DE 3027465 already discloses a system for cooling the wall of a double-walled metallurgy furnace, comprising a network of conduits passing through an external wall and provided at their ends with vaporizing nozzles arranged facing an internal wall of the oven. The goal is to control the temperature of the wall (s), in contact with the heat source, at the upper limits, to optimize the thermal result of the system and the yield of the initial process, implemented in the system.
- a system for cooling an internal wall of a thermal system comprising a double wall, said internal wall being subjected to temperatures equal to or greater than its physical capacity
- this system comprising a network of tubes independent of said thermal system at cooling, these tubes containing cooling water circulating under pressure and being provided with nozzles provided for spraying the water and projecting it into solid cones against said internal wall and controlled by taps with adjustable flow rate.
- the network of tubes is an integral part of the external wall of the thermal system to be cooled and in that it further comprises means for maintaining in depression the water projection zone delimited by said walls, respectively internal and external.
- the tubes are traversed by the valves with adjustable flow rate, these valves comprising at their ends said nozzles.
- tubes are installed on the inner face of the outer wall. Tubes can also be installed on the outside of the outside wall.
- the cooling water circulating in the network of tubes is preferably stabilized in minerals and in PH.
- the network of tubes is for example in a closed circuit and the cooling water can be regenerated continuously and be at a temperature less than or equal to 60 ° C.
- the zone into which the water is sprayed is maintained in vacuum by a system sucking up the vapor produced.
- This steam suction system is provided for compressing this steam for injecting it into a dedicated exchanger assembly so that said steam produced and then compressed acquires its temperature and pressure useful for cogeneration of energy.
- the cooling system according to the invention can also comprise a detector system composed of contact probes which make it possible to continuously control the temperature of the walls to be regulated.
- This system can also include valves with micrometric adjustment which can be with automatic control managed by computer.
- a method for cooling an internal wall of a thermal system comprising a double wall, said internal wall being subjected to temperatures equal to or greater than its physical capacity, in which cooling water circulating under pressure is contained in a network of tubes independent of said thermal system to be cooled, these tubes containing and being provided with nozzles provided for spraying the water and projecting it into solid cones against said internal wall and controlled by taps at adjustable flow rate, characterized in that it maintains a vacuum in the water projection zone delimited by said walls, internal and external respectively, the network of tubes being an integral part of the external wall of the thermal system to be cooled.
- Maintaining the material making up the wall in contact with the hot source at its optimum temperature ensures its longevity.
- the reduction in heat exchange which is at least viable for materials, makes it easier to obtain and control process temperatures, and reduces energy consumption.
- the process implemented in this hydraulic system uses water stabilized in minerals and PH, in permanent recycling.
- FIG. 1 illustrates a first embodiment of a cooling system according to the invention
- FIG. 2 illustrates a second embodiment of a cooling system according to the invention
- - Figure 3 illustrates electrically controlled valves implemented in the cooling system according to the invention
- FIG. 4 shows a section of a tube used in the cooling system according to the invention.
- the following descriptions and the aforementioned figures demonstrate the capacity of a cooling system according to the invention to respond to all cases of configuration and geometry of the materials to be checked / regulated. These descriptions and figures are only a limited example of the cases in which the method / system can be advantageously employed.
- the cooling system according to the invention is installed in the interior space 6 of the double wall reserved for cooling the areas in contact with the hot springs.
- the system is composed of a network of tubes 1 which convey the water under pressure 4.
- the pressure relates to the flow rates useful for the regulation and control of the various zones to be controlled.
- This network of tubes can be installed either on one or the other face of the wall 9 according to the general configuration of the receiving material.
- Valves 2 pass through these tubes 1 from place to place depending on the thermal zone to be checked.
- Nozzles 3 or injectors, directed towards the wall to be cooled 7 are installed at the end of these taps.
- the control of these valves is electric and progressive, with micrometric adjustment and automatic control managed by computer. These valves are removable, the tube being loaded, for maintenance without technical shutdown.
- the water is micronized when the nozzles pass. It is projected in full conical jets 5 in the volume included in the interior space 6 on the external face of the partitions 7 subjected to a thermal release 8 to be controlled.
- This system allows the control, the control and the modulation of the temperatures of walls subjected to a thermal flux or to a significant thermal conductivity.
- each thermal zone is provided with a detector system, composed of contact probes 11 which make it possible to continuously monitor the temperature of the wall to be regulated 7.
- the system acts on the control of the taps 2 and regulates the flow of sprayed water 3 and makes it possible to control the temperature of the wall by varying this flow.
- the volume included in the double wall 6 is under vacuum thanks to a vacuum cleaner / compressor 10 of steam. This has the consequence of allowing instantaneous evaporation, at low temperature, of the sprayed water as soon as it comes into contact with the wall 7 to be controlled and of limiting thermal shocks.
- the amount of latent heat absorbed by the system allows better control of the temperature required by the useful heat exchange at the wall, by using only the necessary amount of liquid.
- FIG. 4 a section of tube 12 which can compose a grid or a spacer subjected to high temperatures.
- the tube 1 under pressure located in the tube 12 is held in place by spacers 13.
- This tube 1 is perforated 14 and each perforation corresponds to a nozzle 3 for spraying the water which it conveys.
- Water is sprayed in the heat exchange zone 15 of the tube 12.
- This tube 1 is controlled by a tap 2 installed at one of its ends and can be blinded or connected at its two ends to allow circulation of the 'water.
- a tap 2 installed at one of its ends and can be blinded or connected at its two ends to allow circulation of the 'water.
- the tube 12 is subjected to a high temperature of constant value which tends to deform it, the tube 1 is at low temperature and does not undergo this deformation. This low temperature has no consequence on the tube 12 and does not cause a thermal difference, no shocks or distortion.
- the thermal origin can be any origin known to date.
- the objective is to be able to use special steels with a very long service life under maximum conditions of performance and performance.
- This system makes it possible to considerably reduce the thickness of the materials to be used.
- the thickness of the wall in contact with the heat flux can be reduced to a minimum mechanical resistance, the pressure balance on either side of these walls being stable.
- the reduction in thicknesses optimizes the heat exchange and the efficiency of temperature control.
- the wall in contact with the heat flow can be made as a liner so as to be interchangeable.
- the structure and the load-bearing wall of the regulation system are not subjected to stress and their maintenance is reduced by their extended service life.
- the atomization of the water on the wall to be thermally controlled promotes its instantaneous evaporation.
- the projection under high pressure ensures perfect and measured wetting of the walls to be checked, whatever its situation or position in the material configuration.
- Each tap is automatically adjustable micrometrically and digitally controllable. It corresponds to one or more jets depending on the area to be checked. Each sensitive area can therefore be treated specifically.
- the pressure of the tubular assembly allows precise directional jets and to reach areas that are difficult to cool, with reference to FIGS. 2 and 3.
- the projection under high pressure of atomized water accelerates its evaporation.
- the water is distributed by a network of pipes 1 fixed on the external wall of the casing 9 of the heat exchanger.
- the pressure of the water in this network can be significant without prejudice to the strength of the walls. On the contrary, these pipes help to consolidate the support wall.
- the pressure is adjustable to the required flow rates, the flow metering of each injector 3 being more easily controllable.
- the advantage of this pressure capacity is to admit the useful flow rates in all points of the areas to be treated, to allow the atomization of the water, to project this water sprayed vigorously and thus to promote its micronization which ensures rapidity evaporation.
- the position of this distribution network on the wall of the casing 9 allows rapid maintenance without stopping the system.
- Each injection mechanism can be installed so as to be accessible from the outside.
- booster tanks for example four or more depending on the thermal power and the quantity of steam produced, participate in the production of superheated steam. These tanks are alternately emptied of their superheated steam by cogeneration devices, and again filled with low temperature steam by a compressor to acquire the “sensitive” thermal load of overpressure and so on.
- the exchange being of the gas / gas type and the frictions and fluidities being optimized.
- the exchange surfaces are maximum, the thermal acquisition in sensible heat is faster and the overpressure accelerated.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002499143A CA2499143A1 (fr) | 2002-09-16 | 2003-09-16 | Systeme et procede de refroidissement et d'echange thermique regulateur, pour le controle et la maitrise des temperatures de parois soumises a hautes temperatures |
US10/528,024 US7644752B2 (en) | 2002-09-16 | 2003-09-16 | Regulating heat exchange and cooling method and system for monitoring and controlling the temperatures of walls subjected to high temperatures |
AU2003282169A AU2003282169A1 (en) | 2002-09-16 | 2003-09-16 | Regulating heat exchange and cooling method and system for monitoring and controlling the temperatures of walls subjected to high temperatures |
EP03773786A EP1546626A2 (fr) | 2002-09-16 | 2003-09-16 | Systeme et procede de refroidissement et d'echange thermique regulateur, pour le controle et la maitrise des temperatures de parois soumises a hautes temperatures |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR02/11458 | 2002-09-16 | ||
FR0211458A FR2844582B1 (fr) | 2002-09-16 | 2002-09-16 | Systeme de refroidissement regulateur pour la maitrise des temperatures de parois soumises a des productions thermiques |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2004025201A2 true WO2004025201A2 (fr) | 2004-03-25 |
WO2004025201A3 WO2004025201A3 (fr) | 2004-05-06 |
Family
ID=31897414
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2003/002734 WO2004025201A2 (fr) | 2002-09-16 | 2003-09-16 | Système et procédé de refroidissement et d'échange thermique régulateur, pour le contrôle et la maîtrise des températures de parois soumises à hautes températures |
Country Status (6)
Country | Link |
---|---|
US (1) | US7644752B2 (fr) |
EP (1) | EP1546626A2 (fr) |
AU (1) | AU2003282169A1 (fr) |
CA (1) | CA2499143A1 (fr) |
FR (1) | FR2844582B1 (fr) |
WO (1) | WO2004025201A2 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105258514A (zh) * | 2015-08-06 | 2016-01-20 | 昌乐圣鑫管业有限公司 | 电炉热能环保冷却再利用装置 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006012985A1 (de) * | 2006-03-21 | 2007-10-11 | Linde Ag | Verfahren und Vorrichtung zum schnellen Abkühlen von Werkstücken |
TW200930850A (en) * | 2008-01-03 | 2009-07-16 | Green Energy Technology Inc | Cooling structure for body of crystal growth furnace |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3027465C1 (de) * | 1980-07-19 | 1982-03-18 | Korf-Stahl Ag, 7570 Baden-Baden | Verfahren und Vorrichtung zum Kuehlen von Gefaessteilen eines metallurgischen Ofens,insbesondere eines Lichtbogenofens |
WO1992014108A1 (fr) * | 1991-02-06 | 1992-08-20 | Kortec Ag | Dispositif de refroidissement de parties de l'enveloppe d'un four, notamment d'un four metallurgique |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6056764B2 (ja) * | 1978-02-14 | 1985-12-11 | 石川島播磨重工業株式会社 | 炉体鉄皮の非常用冷却装置 |
US4813055A (en) * | 1986-08-08 | 1989-03-14 | Union Carbide Corporation | Furnace cooling system and method |
US5115184A (en) * | 1991-03-28 | 1992-05-19 | Ucar Carbon Technology Corporation | Cooling system for furnace roof having a removable delta |
GB9322696D0 (en) * | 1993-11-03 | 1993-12-22 | Davy Mckee Stockton | Cooling of hot bodies |
US5561685A (en) * | 1995-04-27 | 1996-10-01 | Ucar Carbon Technology Corporation | Modular spray cooled side-wall for electric arc furnaces |
US6053418A (en) * | 1998-01-14 | 2000-04-25 | Yankee Scientific, Inc. | Small-scale cogeneration system for producing heat and electrical power |
-
2002
- 2002-09-16 FR FR0211458A patent/FR2844582B1/fr not_active Expired - Fee Related
-
2003
- 2003-09-16 US US10/528,024 patent/US7644752B2/en not_active Expired - Fee Related
- 2003-09-16 EP EP03773786A patent/EP1546626A2/fr not_active Withdrawn
- 2003-09-16 WO PCT/FR2003/002734 patent/WO2004025201A2/fr not_active Application Discontinuation
- 2003-09-16 AU AU2003282169A patent/AU2003282169A1/en not_active Abandoned
- 2003-09-16 CA CA002499143A patent/CA2499143A1/fr not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3027465C1 (de) * | 1980-07-19 | 1982-03-18 | Korf-Stahl Ag, 7570 Baden-Baden | Verfahren und Vorrichtung zum Kuehlen von Gefaessteilen eines metallurgischen Ofens,insbesondere eines Lichtbogenofens |
WO1992014108A1 (fr) * | 1991-02-06 | 1992-08-20 | Kortec Ag | Dispositif de refroidissement de parties de l'enveloppe d'un four, notamment d'un four metallurgique |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 003, no. 128 (C-062), 24 octobre 1979 (1979-10-24) & JP 54 107807 A (ISHIKAWAJIMA HARIMA HEAVY IND CO LTD), 24 août 1979 (1979-08-24) * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105258514A (zh) * | 2015-08-06 | 2016-01-20 | 昌乐圣鑫管业有限公司 | 电炉热能环保冷却再利用装置 |
Also Published As
Publication number | Publication date |
---|---|
AU2003282169A1 (en) | 2004-04-30 |
US7644752B2 (en) | 2010-01-12 |
US20060151148A1 (en) | 2006-07-13 |
WO2004025201A3 (fr) | 2004-05-06 |
CA2499143A1 (fr) | 2004-03-25 |
FR2844582B1 (fr) | 2005-06-17 |
FR2844582A1 (fr) | 2004-03-19 |
EP1546626A2 (fr) | 2005-06-29 |
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