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EP2312255B1 - Procédé et dispositif de nettoyage de surfaces de chauffage alimentées en gaz de fumée d'un échangeur thermique dans une installation de combustion lors de son fonctionnement - Google Patents

Procédé et dispositif de nettoyage de surfaces de chauffage alimentées en gaz de fumée d'un échangeur thermique dans une installation de combustion lors de son fonctionnement Download PDF

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Publication number
EP2312255B1
EP2312255B1 EP20100013399 EP10013399A EP2312255B1 EP 2312255 B1 EP2312255 B1 EP 2312255B1 EP 20100013399 EP20100013399 EP 20100013399 EP 10013399 A EP10013399 A EP 10013399A EP 2312255 B1 EP2312255 B1 EP 2312255B1
Authority
EP
European Patent Office
Prior art keywords
feed line
outer pipe
flue
cooling fluid
nozzle
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.)
Not-in-force
Application number
EP20100013399
Other languages
German (de)
English (en)
Other versions
EP2312255A3 (fr
EP2312255A2 (fr
Inventor
Peter Knapp
Achim Eckert
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.)
MVV Umwelt Asset GmbH
Original Assignee
MVV O&M GmbH
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 MVV O&M GmbH filed Critical MVV O&M GmbH
Publication of EP2312255A2 publication Critical patent/EP2312255A2/fr
Publication of EP2312255A3 publication Critical patent/EP2312255A3/fr
Application granted granted Critical
Publication of EP2312255B1 publication Critical patent/EP2312255B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F28G1/00—Non-rotary, e.g. reciprocated, appliances
    • F28G1/16—Non-rotary, e.g. reciprocated, appliances using jets of fluid for removing debris
    • F28G1/166—Non-rotary, e.g. reciprocated, appliances using jets of fluid for removing debris from external surfaces of heat exchange conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
    • F23J3/02—Cleaning furnace tubes; Cleaning flues or chimneys
    • F23J3/023—Cleaning furnace tubes; Cleaning flues or chimneys cleaning the fireside of watertubes in boilers
    • 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
    • F28D7/10—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 one within the other, e.g. concentrically
    • F28D7/106—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 one within the other, e.g. concentrically consisting of two coaxial conduits or modules of two coaxial conduits
    • 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
    • F28F1/003—Multiple wall conduits, e.g. for leak detection
    • 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
    • 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
    • F28G15/00—Details
    • F28G15/02—Supports for cleaning appliances, e.g. frames

Definitions

  • the invention relates to a method and a device for cleaning flue gas exposed heating surfaces of a heat exchanger in an incinerator according to the preamble of claim 1 and 6.
  • heat exchangers are known to be used, which are acted upon by the hot flue gases generated during the combustion in order to extract the heat energy contained therein.
  • the constituents contained in the flue gases condense on the cooler surfaces of the heat exchangers, whereby deposits form after a certain time on these, which have thermally insulating properties and thereby worsen the transition of heat energy from the flue gas in the heat exchanger.
  • the thermal as well as the electrical efficiency of the system deteriorates disadvantageously.
  • the writings give no indication to arrange the opening for the exit of the cleaning fluid at the second end of the tube and to let the supplied at the other end of the outer tube cooling fluid in the region of the opening at the second end of the outer tube within the flue into the flue into it. As a result, targeted local removal of contaminants with the devices described is not possible.
  • the method for removing contaminants on heating surfaces of a heat exchanger in a flue of an incinerator, wherein the heating surfaces are acted upon during operation of the incinerator with a cleaning fluid characterized in that for cleaning the heat exchanger a preferably dimensionally stable and heat-resistant lance is introduced from an outer tube and a supply line for the cleaning fluid received therein through an opening in the flue of the incinerator.
  • a cooling fluid which flows around the supply line through an annular gap formed between the outside of the supply line and the inside of the heat-resistant outer tube.
  • the method according to the invention has the advantage that the incineration plant no longer needs to be shut down for cleaning purposes and has to be driven up again after cleaning, which is associated with a high thermal outlay due to the cooling of the downstream plant components and leads to considerable costs.
  • the entire system can be operated with a higher overall efficiency, as a result of the relatively cheap cleaning process, the cleaning intervals are shortened, thereby improving the efficiency of heat transfer to the heat exchanger surfaces and thus increases the thermal and electrical efficiency.
  • the method according to the invention is equally suitable for cleaning heat exchangers in vertical flues as well as in horizontal flues.
  • the cooling fluid which is supplied to the annular gap at a first outside the flue gas end arranged end, and in the region of the second end of the outer tube exits into the flue, remains in the flue and with the through the combustion process generated flue gases is discharged in the gaseous state.
  • the cooling fluid is a non-combustible liquid such as water, which further has the lowest possible boiling point and thus evaporated quickly.
  • a non-combustible liquid such as water
  • the cooling fluid is a non-combustible liquid such as water, which further has the lowest possible boiling point and thus evaporated quickly.
  • water as a cooling fluid, as this passes without residue and pollutant-free by the prevailing temperature in the incinerator immediately after entering the flue gas by evaporation in the gaseous state and removed as hot water vapor together with the flue gases through the trigger becomes.
  • Another advantage that results from the use of water as the cleaning medium is that this can be provided relatively inexpensively, behaves during the combustion process and the downstream processes essentially chemically neutral.
  • the cooling fluid flows around the supply line in a spiral shape when flowing through the annular gap. This advantageously ensures that the entire surface of the supply line is flowed around by the cooling fluid, whereby the risk of differences in flow in the cooling fluid arising due to temperature differences between the side facing away from the flue gas flow side and the flue gas flow side facing the outer tube in the cooling fluid can, is reduced.
  • a further advantage of the previously described embodiment of the invention can be seen in the fact that due to the spiral or helical course of the flow, additional vortices result which improve the heat transfer from the outer tube to the cooling medium.
  • the cleaning fluid exits the supply line through a nozzle arranged at the end of the supply line.
  • This advantageously converts the pumping pressure of the cleaning fluid generated by the pump into kinetic energy of the solid particles contained in the cleaning fluid, which increases the impulse energy transmitted to the polluted surfaces upon impact and improves the cleaning effect.
  • the nozzle is arranged at a substantially 90 ° relative to the supply line angled line section and the cleaning fluid polluted heating surfaces are preferably applied from below or from the front or from the side with the cleaning fluid.
  • the outer tube can be operated with the therein received supply line for cleaning the heat exchanger in a substantially horizontal position, whereby a cleaning of the spaces between the tubes of the heat exchanger through the opening in the flue through the operating personnel convenient manner can also be made at a greater distance from the flue.
  • a nozzle is preferably used, which is laterally surmounted by the outer tube and is also flows around the cooling fluid before exiting the outer tube and / or is sprayed from the under a pressure of preferably less than 10 bar exiting cooling fluid to the nozzle to protect against overheating.
  • the cleaning fluid is a mixture of a carrier gas, in particular air and solid particles, wherein the solid particles in particular sand or / and metal balls and / or silicon carbide and / or dry ice is or contains such.
  • a carrier gas in particular air and solid particles
  • the use of air as a carrier gas is of particular advantage, since it is available as space and / or ambient air virtually unlimited available and compress in a known manner with comparatively simple means such as a compressor or the like and promote with a desired pressure through the supply line leaves.
  • sand as solid particles results in particular in combination with air as a carrier gas the advantage that it can be procured not only cost, but also chemically inactive at the prevailing temperatures and thus does not adversely affect the combustion process in chemical terms.
  • dry ice particles can also be provided, with which - as with sand - a very good cleaning effect results when these on the soiled surface of the Impact heat exchanger tubes. Due to the high temperatures prevailing in the flue gas, the dry ice particles are passed through the plant as gaseous carbon dioxide together with the carbon dioxide of the flue gas.
  • the solid particles used have a particle size in the range from 0.06 mm to 2 mm, in particular from 0.2 mm to 1.2 mm, since the particles of this size can be entrained particularly well in the carrier gas and on the other hand can absorb enough kinetic energy at the exit from the nozzle to deliver it to the dirt layer on the heat exchanger surfaces. These factors advantageously affect the cleaning result and allow the use of standard pumps and nozzles.
  • the device according to the invention for carrying out the method of removing contaminants on heating surfaces of a heat exchanger of a combustion system comprises a supply line which is acted upon by a first pump, preferably a compressor, at a first end with a cleaning fluid which the supply line at a second end in the direction leaves the heating surfaces. It is characterized in that the supply line is surrounded by a heat-resistant outer tube, which encloses the supply line to form an annular gap formed between the outside of the supply line and the inside of the outer tube, and that a second pump is provided, the annular gap of a first , Exposed outside of the flue gas from the end with a cooling fluid to promote this under pressure through the annular gap and thereby to cool the supply line continuously.
  • the device according to the invention has the advantage that the device is very resistant to very high temperatures due to its cooling, as prevail, for example, in the flues of an incinerator. It is also advantageous if the cooling fluid used leaves the outer tube at its second end and does not have to be led out again within a further tube or channel within the annular gap from the flue gas to it after a complex cooling to the starting temperature - the preferred is below 30 ° Celsius - to use again as a cooling fluid. This can be especially when using be used by water as a cooling fluid in a particularly cost-effective manner, a simple water connection with a supply pressure of 5 - 6 bar. Alternatively, other non-flammable liquids with a low boiling point can be used according to the method of the invention, which are promoted for example by means of a pump from a dedicated tank.
  • flow guide elements are arranged within the annular gap, which deflect the cooling fluid flowing through the annular gap in such a way that the cooling fluid flows around the supply line on the outside in a spiral manner.
  • the flow guide elements extend around the supply line essentially over the entire length of the outer tube and in the form of a spiral or a helix.
  • the supply line is fixed in a particularly advantageous manner in its center position in the outer tube, without coming into contact with the inner surface of the outer tube. As a result, the formation of a thermal bridge and the corresponding direct transfer of heat energy is avoided on the supply line.
  • the supply line at its arranged within the flue gas duct second end to a nozzle through which the cleaning fluid at high pressure, in particular a pressure of more than 6 bar, exits.
  • the solid particles preferably contained in the cleaning fluid to transport a high kinetic energy, which is given when hitting the contaminants in an advantageous manner to this, whereby the contaminants are removed reliably and with high efficiency.
  • the outer tube also encloses the nozzle, so that the nozzle is also advantageously cooled by the exiting into the combustion chamber cooling fluid. It may be provided that the cooling fluid has a lower pressure than the cleaning fluid, and exits through a nozzle opening radially surrounding hole assembly from the outer tube.
  • the holes of the hole arrangement are arranged at an obliquely outward angle with respect to the jet axis of the cleaning fluid, so that the cooling fluid emerges obliquely at an angle to the cleaning fluid from the openings, as a result It is avoided that the emerging cleaning fluid jet is deflected by the cooling fluid or otherwise disturbed.
  • the holes of the hole arrangement are arranged in size and position relative to the nozzle tip, that forms around the nozzle tip around a nozzle open in the radiating direction, funnel-shaped wall of exiting cooling fluid, which acts in a particularly advantageous manner like a protective fluid shield around the nozzle.
  • the supply line at the first end of the outer tube is guided out of the front side, and that the first end of the outer tube with a seal, in particular a stuffing seal, is closed, as a result advantageous straight line routing is obtained, and the supply line in particular without additional couplings and bends liquid-tight can be led out of the outer tube.
  • a movable frame which has a receptacle and / or a guide for the outer tube, in which the outer tube displaceable back and forth and simultaneously in the horizontal and / or vertical direction and / or about the longitudinal direction of the External tube is received rotatably.
  • the guide in which the outer tube is received, mounted pivotably about a first pivot axis and a second pivot axis via a first and a second hinge pin, wherein the first pivot axis is preferably perpendicular to the second pivot axis and the pivot axes are arranged advantageously horizontally and vertically.
  • the guide can be arranged with the hinge pin on a particular height-adjustable and / or laterally adjustable cross member to position the outer tube relative to the opening in the flue in the vertical direction and / or horizontal direction, without raising the frame and the pipe as a whole and move to have to.
  • the supply line is preferably a flexible hose, in particular a hose for supplying a mixture of air and blasting sand, as is known in particular from the field of sand blasting technology of exterior surfaces of buildings, etc. ago.
  • a flexible compressed air hose as it is generally used for sandblasting, there is the advantage that this hose, which is subject to only minor internal wear due to its flexibility through the guided air-blasting sand mixture, cost and in reinforced quality can be purchased by the meter.
  • the advantage is obtained by the outer tube and the cooling medium guided between the outer tube and the tube that the pressure tube, which as a rule is coated with rubber-like material, can also be used inside the heat exchanger without the tube is impaired or even destroyed by the high temperatures.
  • a device 1 which comprises an outer tube 4 with a centrally located therein supply line 2, wherein in the, bounded by the outside of the supply line 2 and the inner wall of the outer tube 4 annular gap 6 are provided 6 which are in the form of a helix extend around the supply line 2 around.
  • a seal 34 in particular a stuffing seal provided, through which the supply line 2 is frontally out of the first end 8 of the outer tube 4 out to the supply line 2 to a first pump 18 for the promotion of the air-sand mixture to join.
  • the enlarged view of the seal 34 in Fig.1 it can be seen that this comprises a threaded cap 38 which can be screwed onto the first end 8 of the outer tube 4 via an inner and outer thread 36 cooperating with the threaded cap 38 and thereby clamps a form-elastic stuffing box 40 between the threaded cap 38 and the outer tube 4.
  • the illustration in Fig. 1 can be seen that in the region of the first end 8 of the outer tube 4, a connection 42 for a hose 22 for connection to a second pump 20 - Fig. 2 shown - or a supply line for the cooling fluid is arranged.
  • Fig. 1 illustrated that the supply line 2 and the outer tube 4 are angled at its second end 10 by 90 ° and that at the second end 10 of a nozzle 24 is provided with a nozzle opening 26, from which the air-sand mixture 16 exits.
  • the nozzle 24 in the illustrated embodiment is preferably enclosed by the outer tube 4 until it is close to the nozzle opening 26.
  • the outer tube 4 is closed by a preferably annular cover 28 having a passage for the nozzle opening 26 and a hole assembly 30 having a plurality of holes 32.
  • the device 1 of the invention is introduced below the tube assembly of the heat exchanger 48 through a maintenance opening 50 in the lower region of the side wall of the flue 46 in this to apply the heat exchanger 48, for example, from below with the air-sand mixture 16 ,
  • the supply line 2 is led out in accordance with the invention from the outer tube 4 and connected to a first pump 18 for conveying the air-sand mixture 16 through the supply line 2.
  • the connection 42 for the cooling fluid 14 is, as in Fig. 2 shown connected by a hose 22 to a second pump 20, which serves to convey the cooling fluid 14 through the annular gap 6, which is formed between the supply line 2 and outer tube 4.
  • Fig. 3 comprises a frame 54 for holding and moving the device 1 according to the invention within the flue 46 a frame 56, which is preferably connected via two U-profile support with feet 60.
  • the outer tube 4 is movably received in an array of guide rollers 70, which are connected by spacers 72 spaced from the guide rollers 70 L-profiles 74 with each other.
  • the two lower L-profiles 74 are connected via a first hinge pin 66 with a fork 64 in order to move the outer tube 4 accommodated in the arrangement of guide rollers 70 about a first pivot axis 76 in its position relative to the horizontal.
  • the fork 64 is connected at its lower end via a second hinge pin 68 with a cross member 62 and rotatable relative to this in the horizontal, so that the device 70 received in the assembly 70, 72, 74 following this rotational movement.
  • the representation of Fig. 3 can be seen that the cross member 62 is preferably mounted displaceably along the lateral frame members 56, so that the cross member 62, as indicated by the arrow 80, in its position relative to the feet 60 can be moved up and down.
  • the height-adjustable cross member 62 has not shown in detail for holding the set height locking means over which the cross member 62 is preferably detachably connected to the frame 56 during operation of the device 1 according to the invention.
  • Fig. 4 which shows a plan view of the frame 54 according to the invention, can finally be removed, the guide rollers 70 are viewed in the longitudinal direction of the outer tube 4 on the L-profiles 74 in pairs spaced from each other, so that the outer tube 4 in the direction of arrow 82 linear slidably guided and stored.

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  • 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)
  • Incineration Of Waste (AREA)

Claims (14)

  1. Procédé pour éliminer des salissures sur des surfaces de chauffage d'un échangeur de chaleur (48) dans un conduit de gaz de fumées (46) d'une installation de combustion, dans lequel on expose les surfaces de chauffage à un fluide de nettoyage (16) pendant le fonctionnement de l'installation de combustion, dans lequel
    on introduit le fluide de nettoyage (16) à travers une ouverture (50) dans le conduit de gaz de fumées (46) au moyen d'une conduite d'alimentation (2), qui est refroidie en continu par un fluide de refroidissement (14), qui circule autour de la conduite d'alimentation (2) à travers une fente annulaire (6) formée entre le côté extérieur de la conduite d'alimentation (2) et le côté intérieur d'un tube extérieur résistant à la chaleur (4) entourant la conduite d'alimentation (2) et le fluide de refroidissement (14) est fourni à la fente annulaire (6) à une première extrémité (8) disposée à l'extérieur du conduit de gaz de fumées (46), caractérisé en ce que le fluide de refroidissement (14) sort dans le conduit de gaz de fumées, à l'intérieur du conduit de gaz de fumées (46), dans la région de la deuxième extrémité (10) du tube extérieur (4).
  2. Procédé selon une des revendications précédentes, caractérisé en ce que le fluide de nettoyage (16) sort de la conduite d'alimentation (2) par une buse (24) disposée à la deuxième extrémité (10) de la conduite d'alimentation (2).
  3. Procédé selon la revendication 2, caractérisé en ce que la buse (24) est entourée par le tube extérieur (4) et est également enveloppée par le fluide de refroidissement (14).
  4. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le fluide de nettoyage (16) est un mélange composé d'un gaz porteur, en particulier d'air, et de particules solides, dans lequel les particules solides sont en particulier du sable et/ou des billes métalliques et/ou du carbure de silicium et/ou de la glace sèche ou en contiennent.
  5. Dispositif pour éliminer des salissures sur des surfaces de chauffage d'un échangeur de chaleur (48) dans un conduit de gaz de fumées (46) d'une installation de combustion, dans lequel le dispositif (1) comprend une conduite d'alimentation (2), qui est alimentée au moyen d'une pompe (18) à une première extrémité (8) avec un fluide de nettoyage (16), qui quitte la conduite d'alimentation (2) à une deuxième extrémité (20) en direction des surfaces de chauffage, dans lequel la conduite d'alimentation (2) est entourée par un tube extérieur (4) résistant à la chaleur, qui enveloppe la conduite d'alimentation (2) en formant une fente annulaire (6) formée entre le côté extérieur de la conduite d'alimentation (2) et le côté intérieur du tube extérieur (4), et dans lequel il est prévu une deuxième pompe (20), qui alimente la fente annulaire (6) avec un fluide de refroidissement (14) à partir d'une première extrémité (8) située à l'extérieur du conduit de gaz de fumées (46), afin de transporter celui-ci sous pression à travers la fente annulaire (6) et de refroidir ainsi en continu la conduite d'alimentation (2), en vue de la mise en oeuvre du procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le fluide de refroidissement (14) sort dans le conduit de gaz de fumées (46), dans la région de la deuxième extrémité (10) du tube extérieur (4) à l'intérieur du conduit de gaz de fumées (46).
  6. Dispositif selon la revendication 5, caractérisé en ce qu'il est prévu des éléments de guidage d'écoulement (12) à l'intérieur de la fente annulaire (6).
  7. Dispositif selon la revendication 6, caractérisé en ce que les éléments de guidage d'écoulement (12) s'étendent en spirale et essentiellement sur toute la longueur du tube extérieur (4) autour de la conduite d'alimentation (2), et fixent la conduite d'alimentation (2) dans sa position au centre dans le tube extérieur (4).
  8. Dispositif selon l'une quelconque des revendications 5 à 7, caractérisé en ce que la conduite d'alimentation (2) présente, à sa deuxième extrémité (10) disposée à l'intérieur du conduit de gaz de fumées (46), une buse (24) par laquelle le fluide de nettoyage (16) sort sous une pression élevée, en particulier sous une pression supérieure à 6 bar.
  9. Dispositif selon la revendication 8, caractérisé en ce que le tube extérieur (4) entoure également la buse (24) et en ce que le fluide de refroidissement (14) sort du tube extérieur (4) avec une pression plus basse que le fluide de nettoyage (16), à travers un agencement de trous (30) entourant radialement l'ouverture (26) de la buse.
  10. Dispositif selon la revendication 9, caractérisé en ce que l'agencement de trous (30) est réalisé de telle manière que le fluide de refroidissement sortant (14) forme une paroi d'entonnoir continue en forme de cône en fluide de refroidissement (14) autour de la pointe de la buse (24).
  11. Dispositif selon l'une quelconque des revendications 5 à 10, caractérisé en ce que la conduite d'alimentation (2) est guidée frontalement hors du tube extérieur (4) à la première extrémité (8) de celui-ci et en ce que la première extrémité (8) du tube extérieur (4) est fermée avec un joint d'étanchéité (34), en particulier un joint d'étanchéité formant bouchon.
  12. Dispositif selon l'une quelconque des revendications 5 à 11, caractérisé en ce qu'il est en outre prévu une charpente mobile (54), dans laquelle le tube extérieur (4) est monté de façon déplaçable et en même temps pivotante en direction horizontale et/ou verticale et/ou rotative autour de la direction longitudinale du tube extérieur (4).
  13. Dispositif selon la revendication 12, caractérisé en ce que le tube extérieur (4) est placé dans un guide, qui est monté, au moyen d'un premier et d'un deuxième axes d'articulation (66, 68), de façon pivotante autour d'un premier axe de pivotement (76) et d'un deuxième axe de pivotement (78) orienté de préférence perpendiculairement au premier axe de pivotement (76), et en ce que le guide est disposé avec les axes d'articulation (66, 68) sur une traverse (62) en particulier réglable en hauteur.
  14. Dispositif selon l'une quelconque des revendications 5 à 13, caractérisé en ce que la conduite d'alimentation (2) est un tuyau flexible souple, en particulier un tuyau flexible destiné à transporter un mélange d'air et de grenaille.
EP20100013399 2009-10-09 2010-10-07 Procédé et dispositif de nettoyage de surfaces de chauffage alimentées en gaz de fumée d'un échangeur thermique dans une installation de combustion lors de son fonctionnement Not-in-force EP2312255B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200910048879 DE102009048879A1 (de) 2009-10-09 2009-10-09 Verfahren und Vorrichtung zur Reinigung von rauchgasbeaufschlagten Heizflächen eines Wärmetauschers in einer Verbrennungsanlage während des Betriebs derselben

Publications (3)

Publication Number Publication Date
EP2312255A2 EP2312255A2 (fr) 2011-04-20
EP2312255A3 EP2312255A3 (fr) 2014-04-09
EP2312255B1 true EP2312255B1 (fr) 2015-01-07

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EP20100013399 Not-in-force EP2312255B1 (fr) 2009-10-09 2010-10-07 Procédé et dispositif de nettoyage de surfaces de chauffage alimentées en gaz de fumée d'un échangeur thermique dans une installation de combustion lors de son fonctionnement

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EP (1) EP2312255B1 (fr)
DE (1) DE102009048879A1 (fr)

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ITPD20120300A1 (it) * 2012-10-16 2014-04-17 Fare S R L Procedimento di pulizia di forni fusori a bacino per la produzione di articoli in vetro
CN106678846A (zh) * 2016-12-14 2017-05-17 北京神雾环境能源科技集团股份有限公司 吹灰器
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