EP2936026B1 - Procédé et dispositif pour nettoyer des équipements de combustion - Google Patents

Procédé et dispositif pour nettoyer des équipements de combustion Download PDF

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Publication number
EP2936026B1
EP2936026B1 EP13811345.1A EP13811345A EP2936026B1 EP 2936026 B1 EP2936026 B1 EP 2936026B1 EP 13811345 A EP13811345 A EP 13811345A EP 2936026 B1 EP2936026 B1 EP 2936026B1
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EP
European Patent Office
Prior art keywords
tube
cleaning
section
outer tube
container
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.)
Active
Application number
EP13811345.1A
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German (de)
English (en)
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EP2936026A1 (fr
Inventor
Rainer Flury
Markus Bürgin
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.)
Bang and Clean GmbH
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Bang and Clean GmbH
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Publication date
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Publication of EP2936026A1 publication Critical patent/EP2936026A1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
    • B08B7/0007—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by explosions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08—Cleaning containers, e.g. tanks
    • 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
    • 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
    • F27D25/00—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag
    • F27D25/006—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag using explosives
    • 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
    • F28G7/00—Cleaning by vibration or pressure waves
    • F28G7/005—Cleaning by vibration or pressure waves by explosions or detonations; by pressure waves generated by combustion processes

Definitions

  • the invention is in the field of interior cleaning of containers and relates to an apparatus and a method for removing deposits in the interior of containers by means of explosion technology according to the preamble of independent claims 1 and 15. More particularly, the invention relates to an apparatus and a method for cleaning Contaminated and garbage containers with caking on the inner walls, in particular of incinerators, by means of explosion technology. Such a method is also called explosion cleaning.
  • Heating surfaces z. B. of waste incineration plants or coal boilers are generally subject to heavy pollution. These contaminants have inorganic compositions and typically result from deposition of ash particles on the wall. Coatings in the range of high flue gas temperatures are usually very hard because they either remain melted or fused stick to the wall or are glued together by their lower melting or condensing substances on the colder boiler wall. Such deposits are difficult and insufficient to remove by known cleaning process. As a result, the boiler must be periodically shut down, cooled and manually or sandblasted. Since such boilers usually have rather large dimensions, this often requires the construction of a scaffold in the furnace.
  • a cleaning method in which the cooled or the operating, hot boiler is cleaned by introducing and igniting explosive devices.
  • a disadvantage of this process is the need for explosives.
  • the introduction of explosive material in a hot container also requires a completely reliable and efficient cooling system to prevent premature detonation of the explosive.
  • This method and the associated device have the advantage over the above-mentioned explosive blasting technology that the method is favorable in operation. So z.
  • the starting components of a gas mixture comprising oxygen and a gas from the group of combustible hydrocarbons, compared to explosives cost in procurement.
  • the procurement and handling of said gases unlike explosives, does not require any special permits or qualifications so that anyone with appropriate training can perform the procedure.
  • the starting components can be supplied via separate feed lines of the cleaning lance or even separately introduced into the receiving space of the container shell and therefore the dangerous explosive gas mixture shortly before in the cleaning lance or even in the receiving space of the already placed in the boiler room container shell Triggering the explosion is made.
  • the handling of the individual components of the gas mixture is much less dangerous, since these are the single highest combustible but not explosive.
  • the container envelope accommodating the explosive gas mixture contains, for example, layers of paper and / or plastic.
  • the flexible container casings are relatively thin and flammable and therefore extremely sensitive to fire and heat. In this way, it is ensured that the container shell burns due to the triggered explosion or subsequently, in order to leave as possible no residues in the boiler room.
  • the combustible design of the container shell also has the disadvantage that they are introduced into the boiler room by the prevailing heat and by the combustion processes already before their filling or before the ignition of the explosion can be damaged or even destroyed.
  • the inventive cleaning device thus comprises a cleaning lance with a handle side and a cleaning side end portion.
  • a cleaning lance At the cleaning-side end portion is a flexible, a receiving space forming container shell attachable.
  • the cleaning lance further includes a supply passage having a container connection device disposed at the cleaning-side end portion.
  • the feed channel is used to supply the explosive mixture or its output components to the container shell.
  • the supply channel runs along the longitudinal axis of the cleaning lance and preferably has a closed channel cross section.
  • the supply channel is preferably formed as a tubular conduit body, in particular as a supply pipe.
  • the container connection device may also comprise a filling tube arranged at the cleaning-side end section and having a plurality of outlet openings arranged along the longitudinal axis on the circumference of the filling tube for filling the container envelope with the explosive mixture.
  • the filling tube may be formed as a separate component or as an integral part of the feed tube.
  • the diameter of the filling tube may be smaller than the diameter of the feed tube.
  • the cleaning device preferably comprises a supply device for providing or conditioning and / or supplying the explosive mixture or its components.
  • the explosive mixture or its components are fed via supply lines and the associated connections to the cleaning lance in the supply channel or the supply pipe of the cleaning lance.
  • the cleaning lance preferably also includes an ignition device, by means of which the explosive mixture in the supply channel or in the container shell can be ignited.
  • the cleaning device preferably also includes a control device for controlling the filling process of the container shell and for controlling the ignition of the explosive mixture. Furthermore, if a cooling device is provided, the control device preferably also serves to control a coolant supply. Furthermore, a limit switch device described below may also be connected to the control device.
  • the cleaning lance contains a protective tube with a receiving space for a container casing for the purpose of shielding the container casing attached to the container connection device to the outside.
  • the term "protective tube” is generally understood to mean a tubular or tubular shielding body having an open or closed cross-section, which has an opening for ejecting the container casing.
  • the opening is preferably arranged at the, the handle-side end portion opposite end of the protective tube, frontal opening.
  • the protective tube is z. B. preferably made of metal, in particular made of steel.
  • the cleaning method is based on the concept of an explosive mixture of gaseous, liquid and / or powdered components, which are introduced into the receiving space of the flexible container shell, together with the container shell in the vicinity of a point to be cleaned inside a To bring container to then bring the mixture to destroy the container shell to explode.
  • the explosive mixture preferably contains at least one gaseous component and is particularly preferably completely gaseous, in particular in the explosive state.
  • the explosive mixture is preferably prepared exclusively from gaseous or rapidly evaporating components.
  • the flexible container shell is inflated or inflated by the inflowing gas with expansion of the receiving space.
  • the explosive mixture preferably contains a fuel and an oxidizing agent, such as. As gaseous oxygen or an oxygen-containing gas.
  • the fuel may be liquid or gaseous. This can z.
  • a hydrocarbon compound such as acetylene, ethylene, methane, ethane, propane, gasoline, oil, etc. be.
  • the explosive mixture can already be introduced as a mixture in the container shell or fed to the cleaning lance.
  • the components or at least individual components of the mixture in particular via separate supply lines, individually supplied to the cleaning lance and mixed together in the supply channel to the explosive (final) mixture.
  • the force of the explosion and the area vibrated by the shock waves e.g. a container or pipe wall, causing the break off of Wandanbackept and slagging and thus cleaning the surface.
  • the strength of the explosion required for cleaning and thus the amount of the starting components of the mixture used depends on the type of contamination and the size and type of contaminated container.
  • the dosage and strength of the explosion can be and are preferably chosen so that no damage to installations.
  • the possibility of optimal dosage of Substances used on the one hand reduces the cleaning costs, on the other hand, the risk of damage and damage to plant and people.
  • the flexible container shell thus forms a receptacle for the explosive mixture and allows the secure positioning of the mixture at the point to be cleaned. Furthermore, the container shell prevents dilution of the explosive mixture with the ambient air. In addition, the container shell can also serve to cool the explosive mixture in order to prevent the mixture from being ignited prematurely in the hot boiler room.
  • the invention is characterized in that the supply channel along the longitudinal axis of the cleaning lance relative to the protective tube from a first position in which the container shell is shielded from the environment by the protective tube, in a second position in which the container shell of the shield through the protective tube emerges, is arranged displaceably.
  • the supply channel preferably runs in the longitudinal direction of the cleaning lance from the handle side to the cleaning side end section.
  • the cleaning lance has means, such as line connections, for supplying the explosive mixture or components thereof to the feed channel. These are preferably arranged on the handle-side end portion of the cleaning lance.
  • the protective tube may have a length of 50 to 200 cm, in particular from 100 to 200 cm.
  • the outer diameter of the protective tube can z. B. 60 to 200 mm, in particular about 100 mm.
  • the length of the cleaning lance is preferably several meters, z. B. 5 to 10 m. However, it can also be more than 10 m.
  • the protective tube or a guide tube connected to the protective tube is designed as a sliding tube or sliding tube, which is guided relative to the feed channel along the longitudinal axis L on the cleaning lance slidably, in particular slidably.
  • the protective tube or the tube connected to the protective tube for example, on the outer circumference of the supply channel designed as a feed tube or an outer channel surrounding the feed channel along the longitudinal axis of the cleaning lance displaceable, in particular slidably displaceable be performed.
  • a sliding guide is expediently provided.
  • the sliding guide can be formed for example by a stuffing box, which seals the components moving relative to each other against each other.
  • the supply channel is enveloped by an outer tube, wherein between the supply channel, in particular a feed tube, and the outer tube preferably a channel, such as cooling channel, in particular an annular cooling channel, is formed, in which a cooling medium can be fed.
  • the cooling medium is used inter alia for cooling the feed pipe.
  • the cooling channel is preferably fed at the handle-side end portion via corresponding supply lines with coolant.
  • the cooling channel On the cleaning side, the cooling channel has an axial outlet opening for the cooling medium in the protective tube, via which coolant can be applied to the protective tube and to the container casing.
  • the outer and / or the feed tube are preferably made of a metal, in particular made of steel.
  • the cleaning lance contains an outer tube which encloses the feed channel, in particular the feed channel designed as a feed tube.
  • the supply pipe is formed in this case as an inner tube.
  • the protective tube or the guide tube connected to the protective tube is guided on the outer circumference of the outer tube relative to this sliding.
  • the protective tube or the guide tube has z. B. an inner diameter which corresponds to the outer diameter of the outer tube or is larger.
  • This embodiment has the advantage that the container shell can continue to cool even after the retraction of the protective tube relative to the feed tube with the front side of the annular coolant channel escaping coolant.
  • the protective tube is connected to a guide tube, which is arranged to the handle-side end portion.
  • the guide tube is designed as a sliding tube. This is guided displaceably along with the protective tube along the longitudinal axis relative to the supply channel on the cleaning lance.
  • the guide tube is for this purpose, always understood as a relative movement, slidably guided on the outer tube.
  • the protective tube or the guide tube can be slidably guided on the outer tube via a sleeve with stuffing box.
  • the outer tube is designed in several parts and comprises at least two outer tube sections.
  • the at least two outer tube sections are arranged displaceable relative to one another along the longitudinal axis.
  • the one outer pipe section preferably a first outer pipe section
  • the one outer pipe section is guided with a pipe end in the other outer pipe section and out of this and retractable into this.
  • the two outer tube sections can in particular be telescoped against each other.
  • the arrangement can also be designed vice versa, with a first outer tube section, which has an inner diameter which corresponds to the outer diameter of the second outer tube section, or is larger.
  • the second outer pipe section is guided with a pipe end in the first outer pipe section and out of this and retractable into this.
  • a first outer pipe section is preferably connected to the handle-side end section of the cleaning lance.
  • a second outer tube section is preferably connected to the protective tube.
  • the first outer pipe section is preferably firmly connected to the supply pipe or coupled thereto. That the first outer tube section is not displaceable relative to the feed tube.
  • the second outer tube section is also displaceable relative to the feed tube by its displaceability relative to the first outer tube section.
  • the second outer pipe section is preferably slidably guided along the outer circumference of the feed pipe.
  • the supply tube and with this a container connection device can be moved relative to the protective tube and in particular moved out of this.
  • the first outer tube section can be centered relative to the feed tube via centering elements, which are positioned radially along the outer circumference of the feed tube.
  • the centering elements can be mounted on the outer circumference of the feed channel and / or on the inner circumference of the first outer tube section.
  • the first outer pipe section is preferably guided in a slidingly displaceable manner via the centering elements along the outer circumference of the feed pipe.
  • stop elements can be mounted on the outer circumference of the feed tube and / or on the inner circumference of the second outer tube section, which form a stop in cooperation with the centering elements.
  • the stop should limit the axial displacement of the outer pipe sections against each other. This is intended in particular to prevent complete pulling apart of the outer pipe sections.
  • the two outer pipe sections can be guided slidingly against each other via a sleeve with stuffing box.
  • a slide-in limiting element can be arranged on the protective tube, on the guide tube or on the outer tube of the above-mentioned embodiments.
  • the insertion limiting element serves as a stop when inserting the cleaning lance in the interior of the container to be cleaned and is after a defined insertion distance to a component on the outside of the container.
  • the insertion limiting element causes the protective tube can not be further inserted into the interior of the container, while the supply channel or the supply tube due to the relative displaceability relative to the protective tube, is inserted further into the interior of the container.
  • the insertion limiting element can, for. B. include a flange or a collar.
  • the cleaning device may also include an insertion member which z. B. introduced into a passage opening of the container wall or directly or indirectly can be attached to the outside of the container wall via a passage opening.
  • the introduction component may comprise a guide tube section for guiding the cleaning lance, ie the lance tube, the outer tube and / or the protective tube.
  • the cleaning lance is filled to perform the cleaning process through the through hole of the insertion in the interior of the container.
  • the cleaning lance is guided during insertion into the interior and during the cleaning process after the introduction of the guide tube section and supported. In this way, the user does not need to carry the full weight of the cleaning lance in the practice of the method.
  • the protective tube For receiving the container casing in the receiving space of the protective tube, this is preferably pushed over the Be bacheloreral gleichvorraum. To release the container shell, the protective tube is preferably moved to the gritf lake end portion.
  • the cleaning lance is again pulled out of the interior of the container to be cleaned.
  • the protective tube is left in its current, retracted position. With the attachment of another container shell, a new cleaning cycle can be initiated as described above.
  • the feed tube or the outer tube can in principle be moved manually or automatically relative to the protective tube or the guide tube along the longitudinal axis L.
  • the relative displacement of the feed tube or the outer tube relative to the protective tube or the guide tube can be effected via corresponding actuating means.
  • the insertion component may be part of the actuating means.
  • These actuation means may further provide a cable pull device, with fastening means on the lance tube or outer tube for fastening at least one cable and with deflection means on the insertion component for deflecting the at least one cable.
  • the limit switch device can, for. B. have a first tube attached to the first contact means and attached to the second tube body second contact means, which contact means in particular telescoping collapse of the two tubular body upon reaching a defined displacement measure come into contact with each other and trigger a control signal.
  • the container shell can remain stowed comparatively long in the protective bell.
  • the container shell needs to be ejected from the protective bell only at the place of cleaning. This significantly reduces the risk of damage to the container shell due to the harsh conditions in the boiler room.
  • the reliability is increased by the operation of the inventive cleaning device by comparatively. Small openings in the boiler wall.
  • the cleaning lance of the cleaning device can be easily guided by the comparatively small opening in the vessel wall or in the insertion component and held in a fixed position when the insertion limiting element is struck, the operation of the same is also simplified.
  • the operation of the cleaning device requires in particular less staff
  • the cleaning lance 2, 52 each contains a supply pipe 4, 54, which is guided from a grip-side end section 15, 65 to a cleaning-side end section 16, 66, designed as an inner pipe which the explosive mixture or its components of the container shell 14, 64 are supplied.
  • a first port is provided, in which a first supply line 7, 57 for supplying a first component of the explosive mixture in the supply pipe 4, 54 opens.
  • Into the supply pipe 4, 54 further opens an inlet pipe 3, 53 concentrically arranged to the feed pipe 4, 54.
  • a second pipe is opened via the inlet pipe 3, 53 Component of the explosive mixture in the feed tube 4, 54 fed.
  • the inlet port 3, 53 is for this purpose connected to a second supply line 6, 56.
  • the first component mixes in the supply pipe 4, 54 with the second component to form an explosive mixture.
  • the first component may, for. As oxygen or an oxygen-containing gas.
  • the second component may be a gaseous or liquid fuel, in particular a hydrocarbon compound.
  • An ignition device 10, 60 with a spark plug 11, 61 which opens into the feed pipe 4, 54 and is designed to ignite the explosive mixture in the feed pipe 4, 54, is furthermore attached to the cleaning lance 2, 52.
  • the supply pipe 4, 54 is from an outer tube 5; 55a, 55b sheathed. Between outer tube 5; 55a; 55b and supply pipe 4, 54, an annular cooling channel 18, 68 is formed, in which a coolant for cooling the supply pipe 4, 54 is fed.
  • a first and second connection is provided, to which for supplying a first and second coolant, a first and second supply line 8, 9; 58, 59 are connected.
  • the first coolant may include a coolant, such as water, and the second coolant, a gas, such as water. As air, be.
  • the coolant e.g. a water / air mixture, that is between the outer tube 5; 55a, 55b and the supply pipe 4, 54 out.
  • the coolant serves to protect the cleaning lance 2, 52 against excessive heating.
  • the coolant 29, 79 can emerge from the cooling channel 18, 68 at the cleaning-side end section 16, 66 via an axial outlet opening.
  • the guided through the cleaning lance 2, 52 coolant can in this way also the following described protective tube 12, 62 or its receiving space and the container shell 14, 64 contained therein cool.
  • a lance cooling designed in this way is preferably activated before the introduction of the cleaning lances 2, 52 into a hot container to be cleaned. It typically remains energized throughout the time the cleaning lance 2, 52 is exposed to heat.
  • the cleaning lance 2, 52 has a container connection device 17, 67, to which a container cover 14, 64 can be attached in such a way that it can be removed from the feed tube 4, 54 flowing, explosive mixture is filled with expansion.
  • the container connection device 17, 67 is designed as a filling tube, which is attached in extension of the feed tube 4, 54 to this or formed integrally therewith.
  • the container connection device 17, 67 may also be configured differently, for. B. as a connecting piece.
  • the filling tube 17, 67 which is designed here with a smaller diameter than the feed tube 4, 54, contains along the longitudinal axis L a plurality of outlet openings 28, 70, through which the explosive mixture is introduced into the container casing 14, 64.
  • the filling tube 17, 67 which is also called flute because of its plurality of outlet openings 28, 70 at its periphery, allows efficient and rapid filling of the container shell 14, 64.
  • the exit of the explosive mixture transversely to the longitudinal axis L causes optimal filling the container casing 14, 64.
  • the container shell 14, 64 defines for this purpose an expandable receiving space for the explosive mixture.
  • the filling tube is either formed as a separate component, which is mounted in extension of the feed tube 4, 54 at this or it is formed by an end portion of the feed tube 4, 54 itself.
  • the protective lance 12, 62 is guided concentrically over the feed tube 4, 54 and displaceable relative thereto along the longitudinal axis L of the cleaning lance 2, 52. Due to the aforementioned displaceability, a container casing 14, 64 attached to the container connection device 17, 67 can be extended or retracted from the protective tube 12, 62.
  • the protective tube 12 is guided concentrically over the outer tube 5 and relative to this and therefore also relative to the feed tube along the longitudinal axis L of the cleaning lance 2 displaced.
  • the protective tube 12 is guided via a corresponding sliding guide on the outer tube 5 and in the longitudinal direction L relative to this displaceable. As a sliding guide, the protective tube 12 to the handle-side end portion 15 toward a guide tube portion 26, which is guided over the outer tube 5.
  • the outer tube 5 is slidably guided along the longitudinal axis L in the guide tube section 26. Outer tube 5 and guide tube section 26 are sealed by a stuffing box 21 against each other.
  • a stop element 13 is mounted, which is to prevent the complete extraction of the outer tube 5 and the feed tube 4 from the protective tube 12.
  • this feature is not mandatory and the limitation of the relative displacement between the protective tube 12 and the outer tube 5 or feed tube 4 can also be realized via a different limiting means.
  • the protective tube 12 can assume a first and second end position via the above-described relative movement or relative displacement.
  • a first end position FIG. 1a
  • the protective tube 12 is moved back to the handle-side end portion 15 and releases the filling tube 17 for attaching the contactor sleeve 14 on the filling tube 17.
  • the protective tube 12 is extended to form a receiving space in the direction of the cleaning-side end portion 16 and wrapped in this position, the Beglallrolor and attached to the filling tube 17, not yet expanded container shell 14.
  • the flexible container shell 14 is folded in the protective tube 12 stowed. In this second end position, the container casing 14 is stored protected in the receiving space of the protective tube 14.
  • the cleaning lance 2 is introduced with this arrangement in the boiler room to be cleaned.
  • the cleaning lance 2 is guided with the cleaning-side end portion 16 through a boiler door 32 recessed in the boiler wall 31.
  • an insertion member 33 is embedded with a guide tube section, which receives the protective tube 12 and leads ( Figure 1c ).
  • a Einschubbegrenzungskragen 24 is mounted on the outside, which abuts when inserting the cleaning lance 2 in the boiler room due to its larger compared to the passage opening diameter on Ein 1500bauteil 33 and thus limits the insertion of the protective tube 12 in the boiler room.
  • the protective tube 12 preferably remains until immediately at the beginning of expanding the container shell 14 in the second end position, so that the container shell 14 is protected.
  • the term "boiler” is intended to stand for any type of containers, which are to be cleaned by means of the aforementioned explosion technology.
  • the protective tube 12 is for the purpose of filling the container shell 14 with the explosive mixture and expanding the container shell 14 with release derselbigen from its second end position moved back to its first end position ( Figure 1d ).
  • the protective tube 12 and the outer tube 5 slide along the longitudinal axis L relative to each other, so that the filling tube 17 is driven out of the protective tube 12 at the cleaning-side end portion 16 in the insertion direction E and the container sleeve 14 is expelled from the protective tube 12.
  • the coolant outlet on the cleaning-side end section also shifts together with the container casing 14 and the filling tube 17.
  • the container casing 14 can continue to cool with coolant leaving the coolant channel 18 at the end ,
  • the protective tube 12 assumes the first end position described above after completion of the insertion process.
  • the filling of the container casing 14 with the explosive mixture begins ( Figure 1d ).
  • the explosive mixture is ignited for the purpose of performing a cleaning process.
  • the cleaning lance 2 has a maximum ejection length 25, around which the outer tube 5 can be pushed into the guide tube section 26, and around which the filling tube 17 can be pushed out of the protective tube 12 together with the container sleeve 14.
  • a adjusting ring 34 is arranged with a limit switch 36 on the outer tube 5. This forms a contact 35 from.
  • a limit switch contact 37 is provided in the region of the plug-in sleeve 21, on which the outer tube 5 is inserted into the guide tube 26, a limit switch contact 37 is provided.
  • the cleaning lance 2 forms between the limit switch 36 and the limit switch contact 37 a pipe section whose length corresponds to the maximum ejection length 25 in the extended state.
  • the adjusting ring 34 thus forms a Aus Stammossbegrenzungselement.
  • limit switch 36 The operation of the limit switch 36 is analogous to that in the embodiment according to the Figures 5a-5g and 6a-c described limit switch. Reference is made to the corresponding description. However, the described limit switch 36 is not a mandatory feature of this embodiment.
  • the cleaning device 1 after Figure 1a-1d has the advantage that the container shell 14 is stored protected until shortly before filling with the explosive mixture and the triggering of the explosion in the protective tube 12.
  • the container shell 14 can also be ejected from the outside of the boiler room from the protective tube 12.
  • the supply pipe 54 is surrounded by an outer pipe 55, which is formed in two parts.
  • the outer tube 55 includes a first outer tube portion 55 a, which is connected to the handle-side end portion 65.
  • the first outer pipe section 55a is also connected to the feed pipe 54. That is, the first outer tube section 55a and the feed tube 54 are not displaceable relative to each other along the longitudinal axis L.
  • a second outer tube section 55b opens into the cleaning-side end section 66.
  • the protective tube 62 is attached to the cleaning-side end section 66 on the second outer tube section 55b and is fixedly connected thereto.
  • the second outer pipe section 55b is arranged concentrically to the first outer pipe section 55a and has a larger diameter than the first outer pipe section 55a.
  • the first outer pipe section 55a is inserted between the handle-side and cleaning-side end section 65, 66 with an end section into the second outer pipe section 55b.
  • the first outer tube section 55a is now displaceably guided along the longitudinal axis L in the second outer tube section 55b.
  • the first outer tube section 55a can therefore be moved in and out telescopically along the longitudinal axis L relative to the second outer tube section 55b relative to the second outer tube section 55b.
  • the cleaning lance 52 has a container connection device in the form of a filling tube 67, to which a flexible container cover 64 is attached.
  • the container shell is mounted so that this through the the feed tube 54 flowing, explosive mixture can be filled with expansion.
  • the container shell 64 defines for this purpose an expandable receiving space for the explosive mixture.
  • the protective tube 62 according to this second embodiment is guided concentrically to the outer tube 55, ie to the second outer tube section 55b.
  • the protective tube 62 fixed to the outer tube 55, that is attached to the second outer tube portion 55b.
  • the protective tube 62 extends along the longitudinal axis L or insertion direction E beyond the cleaning-side end section 66 of the second outer tube section 55b. It almost goes into its extension.
  • the protective tube 62 is according to this embodiment, in contrast to the embodiment according to Figure 1a-d , relative to the second outer tube portion 55b of the outer tube along the longitudinal axis L not displaceable. However, due to the above-described multi-part design of the outer tube 55, the protective tube 62 is displaceable along the longitudinal axis L relative to the first outer tube section 55a and correspondingly relative to the feed tube 54.
  • the second outer tube section 55b defines an insertion length 73, via which the protective tube 62 with the container casing 64 can be introduced into the boiler chamber.
  • the first outer tube section 55a is now in a first end position (see FIG. 2a ) is pushed maximally into the second outer tube section 55b.
  • the outer tube 55 has the smallest length extension in this position.
  • the protective tube 62 is recessed in this setting relative to the feed tube 54 and its filling tube 67 against the insertion direction E. The filling tube 67 is released by the protective tube 62 accordingly.
  • the first outer tube section 55a is in a second end position (see FIG. 2b ) with respect to the second outer tube section 55b maximally extended.
  • the outer tube 55 has in this position the greatest length extension.
  • the protective tube 62 is guided completely over the supply tube 54 or via the filling tube 67 and forms a receiving space for the container casing 64.
  • the container shell 64 is optimally protected to the outside against heat and combustion gases.
  • the first outer tube section 55a now occupies this second end position for the purpose of introducing the cleaning lance 52 into the boiler chamber and for positioning the cleaning-side end section 66 of the cleaning lance 52 at the point to be cleaned relative to the second outer tube section 55b.
  • the cleaning lance 52 after Figure 2a-d is similar to the first embodiment after Figure 1a-d are also introduced through a through hole 82 in the boiler wall 81 in a boiler room ( Figure 2c ). About the passage opening 82, an insertion member 72 is attached to the outside with a guide tube section. The cleaning lance 52 is guided over the second outer tube section 55b in the guide tube section of the insertion component 72.
  • An insertion limiting element attached to the second outer pipe section 55b limits the insertion of the second outer pipe section 55b and thus of the protective pipe 62 into the boiler chamber.
  • a stuffing box 71 via which the first outer pipe section 55a is inserted into the second outer pipe section 55b, simultaneously forms the insertion limiting element.
  • Einschubbegrenzungselement on the second outer tube portion 55b.
  • the insertion limiting element strikes upon insertion of the cleaning lance 52 in the boiler chamber due to its compared to the passage opening of the insertion member 72 of larger diameter on the insertion member 72.
  • the first outer pipe section 55a slides into the second outer pipe section 55b, ie the first outer pipe section 55a is inserted along the longitudinal axis L into the second outer pipe section 55b.
  • the two outer tube sections 55a, 55b are consequently pushed together telescopically along the longitudinal axis L or insertion direction E.
  • the supply pipe 54 is moved relative to the protective tube 62 in the insertion direction E.
  • the filling tube 67 is moved out of the protective tube 62 in the insertion direction E and the container sleeve 64 is ejected from the protective tube 62 (see FIG Figure 2d ).
  • the protective tube 62 assumes the first end position described above after completion of the ejection process. At the same time or following this process, the filling of the container envelope 64 with the explosive mixture (not shown) begins. After completion of the filling process, the explosive mixture is ignited for the purpose of performing a cleaning process.
  • the annular cooling channel 68 between the supply pipe 54 and the two outer pipe sections 55 a, 55 b is formed continuously along the longitudinal axis L between the handle-side end portion 65 and the cleaning-side end portion 66.
  • the two telescoping outer tube sections 55a, 55b of the outer tube are sealed against each other via said stuffing box 71, so that no cooling liquid can escape to the outside via its connection point.
  • a collar 84 For handle-side end portion 65 toward a collar 84 is arranged with a limit switch 86 on the first outer tube section 55a. This forms a contact 85. In the region of the plug-in sleeve 71, on which the first outer tube section 55a is inserted into the second outer tube section 55b, a limit switch contact 87 is provided. The cleaning lance 52 forms in the extended state between the limit switch 86 and the limit switch contact 87 a pipe section whose length corresponds to the maximum ejection length 75. The collar 84 thus forms a Aus Stammsbegrenzungselement.
  • limit switch 86 The operation of the limit switch 86 is analogous to that in the embodiment according to the Figures 5a-5g and 6a-c described limit switch. Reference is made to the corresponding description. However, the described limit switch 86 is not a mandatory feature of this embodiment.
  • first outer tube section 55a in contrast to the present embodiment, after Figure 2a-2d is pushed over the second outer tube section 55b. That is, the second outer tube section 55b is guided in the first outer pipe section 55a.
  • This arrangement also allows a telescopic displacement of the two outer tube sections 55a, 55b relative to each other.
  • the stuffing box 71 which seals the two outer pipe sections 55a, 55b against each other, is in FIG. 4 described in more detail. In contrast to the embodiment according to Figure 2a-2d however, this does not show any limit switch device.
  • the stuffing box 71 is fixedly connected to the second outer pipe section 55b.
  • the gland 71 includes a sealant 74, such as. B. a sealing cord, which seals the first outer tube portion 55 a relative to the second outer tube portion 55 b.
  • the first outer tube section 55a has, at its end section, centering elements 80 which center the first outer tube section 55a with respect to the inner feed tube 54 in a coaxial position.
  • the centering elements 80 are formed as a kind of radially arranged along the outer circumference of the feed tube 54 spacers. Passages for the coolant channel 68 are formed between the centering elements 80. That is, the centering elements 80 do not completely interrupt the coolant channel 68 (FIG. FIG. 3 ).
  • the embodiment of a cleaning device 301 according to the invention according to FIGS Figures 5a-5g and 6a-6f is especially designed for cleaning of combustion chambers, in which there is overpressure.
  • the cleaning device 301 comprises a coolable cleaning lance 302.
  • the cleaning lance 302 each contains a feed tube 304, which is guided from a handle-side end section 315 to a cleaning-side end section 316 and designed as an inner tube.
  • the feed tube 304 forms a closed channel 320, through which the explosive mixture or its Components of the container shell 314 is supplied.
  • a first terminal is provided, in which a first Supply line 307 for supplying a first component of the explosive mixture in the supply pipe 304 opens.
  • In the supply pipe 304 further opens to a supply pipe 304 concentrically arranged inlet pipe.
  • a second component of the explosive mixture is fed into the supply pipe 304 via the inlet connection.
  • the inlet port is connected to a second supply line 306 for this purpose.
  • the first component mixes in the feed tube 304 with the second component to form an explosive mixture.
  • the first component may, for. As oxygen or an oxygen-containing gas.
  • the second component may be a gaseous or liquid fuel, in particular a hydrocarbon compound.
  • an ignition device 310 with a spark plug which opens into the supply pipe 304 and is designed to ignite the explosive mixture in the supply pipe 304 electrically, is attached to the cleaning lance 302.
  • the feed tube 304 is encased by an outer tube 305. Between outer tube 305 and feed tube 304, an annular cooling channel 318 is formed, in which a coolant for cooling the supply pipe 304 is fed.
  • a first and second connection is provided, to which for supplying a first and second coolant, a first and second supply line 308, 309 are connected.
  • the first coolant may include a coolant, such as water, and the second coolant, a gas, such as water. As air, be.
  • a coolant supply line for supplying only a coolant, for.
  • a coolant for.
  • the coolant for example a water / air mixture, is thus guided between the outer 305 and supply pipe 304.
  • the coolant is used to protect the cleaning lance 302 against excessive heating.
  • the coolant 339 can emerge from the cooling channel at the cleaning-side end section 316 via an axial outlet opening.
  • the guided through the cleaning lance 302 coolant can cool in this way, the protective tube 312 described below or its receiving space and the container shell 314 contained therein.
  • a lance cooling designed in this way is preferably activated before the introduction of the cleaning lance 302 into a hot container to be cleaned. It typically remains on during the entire time the cleaning lance 302 is exposed to heat (see FIGS. 6d-6f ).
  • the cleaning lance 302 has a container connection device to which a container case 314 can be attached so as to be inflated by the explosive mixture flowing from the supply pipe 304.
  • the container shell 314 defines an expandable receiving space for the explosive mixture.
  • the cleaning lance 302 contains a protective tube 312.
  • the protective tube 312 is guided ⁇ concentrically over the supply tube 304.
  • the feed tube 304 is displaceable relative to the protective tube 312 along the longitudinal axis L of the cleaning lance 302.
  • a container casing 314 attached to the container connection device can be removed from or inserted into the protective tube 312.
  • the outer tube 305 is formed in two parts and has a first outer tube portion 305 a, which is connected to the handle-side end portion 315, and a second outer tube portion 305 b, which is connected to the cleaning side end portion 316 with the protective tube .
  • the first outer tube portion 305 a is with an end portion in second outer tube portion 305b out, so that the two pipe sections 30a, 30b pushed together telescopically and can be pulled apart again.
  • the first outer tube section 305a is guided in sections along the longitudinal axis L in a sliding manner in the second outer tube section 305b.
  • the two outer pipe sections 305a, 305b are sealed against each other via a stuffing box 321 attached to the second outer pipe section 305b.
  • a setting ring 334 with a limit switch 336 is arranged on the first outer tube section 305a. This forms a contact 335 from.
  • a limit switch contact 337 is provided in the region of the plug-in sleeve 321, on which the first outer tube section 305a is inserted into the second outer tube section 305b.
  • the cleaning lance 302 forms in the extended state between the limit switch 336 and the limit switch contact 337 a pipe section whose length corresponds to the ejection length 325.
  • the adjusting ring 334 thus forms a Aus Stammossbegrenzungselement.
  • the length of the pipe section between the gland 321 and the protective tube 312 formed by the second outer pipe section 305 depends on the required insertion length of the cleaning lance 302 into the combustion chamber. This length can be several meters, for example up to 10 meters.
  • the present cleaning device 301 further includes a lance insertion device.
  • a lance insertion device This comprises an insertion member 340 with a guide tube section and a mounting flange 341 for direct or indirect attachment of the insertion tube 340 to the wall 331 of the combustion chamber.
  • the insertion component 340 has a gland 342 at its end facing the handle-side end section 315.
  • Stuffing box 342 seals inlet member 340 and outer tube portion 305b against each other.
  • a setting ring 348 is attached to the second outer tube section 305b.
  • the lance insertion device further includes a cable 343.
  • This consists of two on both sides of the outer tube portion 305b arranged ropes 344, which are fastened by a first end via cable fittings 346 on the adjusting ring 348.
  • the two cables 344 are deflected to the handle-side end portion 315 via deflection rollers 345 of a deflection device attached to the attachment flange 341 of the insertion component 340.
  • At the second end of the ropes 344 are handles 347.
  • the collar 348 also serves as a Einschubbegrenzungselement.
  • the cleaning device 301 further includes a lock device.
  • a lock device This comprises a lock tube 350 which has a mounting flange 351, 352 on both end faces.
  • the lock tube 350 is connected via the first mounting flange 352 with the mounting flange 341 of the insertion member 340, z. B. via screw.
  • the lock tube 350 is attached via the second mounting flange 352 to the wall 331 of the combustion chamber, for. B. via screw connections, and opens into a passage opening in the wall 331.
  • the lock tube 350 further comprises sealing air supply means 353 for supplying blocking air into the lock tube 350th
  • the length of the lock tube 350 preferably corresponds to at least the length of the protection tube 312.
  • a slide gate 354 is provided with a slide.
  • the passage opening can be closed by a slide.
  • the lock device and the cable 343 are not mandatory features of the device.
  • the insertion member 340 may also be disposed directly on the vessel wall 331 above the passage opening.
  • the container connection device together with the container envelope 314 attached thereto is withdrawn into the protective tube 312 so that the container envelope 314 is stowed in the protective tube 312 (see FIG FIG. 6b ).
  • the cleaning lance 302 is inserted with the protective tube 312 into the lock tube 350.
  • the cleaning lance 302 is then attached to the lock tube 350.
  • the mounting flange 341 of the insertion tube 340 is connected to the mounting flange 351 of the lock tube 350 (see FIG. 6c ).
  • the passage opening is closed by the slide of the slider device 345.
  • the ambient pressure prevails outside the combustion chamber.
  • the lock tube 350 is sealed to the environment outside the combustion chamber. Subsequently, sealing air is introduced into the lock tube 350, which is to produce a pressure adjustment to the overpressure in the combustion chamber.
  • the passage opening is opened by actuating the slider device 354.
  • the cleaning lance 302 is pushed with the protective tube 312 and the container shell 314 through the passage opening into the combustion chamber.
  • the adjusting ring 348 mounted on the second outer pipe section 305b, on which the cables 344 are fastened is displaced in the direction of the lock pipe 350, accordingly the outer pipe section 305b is pushed into the insertion component 340 and the lock pipe 350.
  • the protective tube 312 attached to the outer tube section 305b is accordingly pushed into the combustion chamber together with the container envelope 314 (see FIG FIG. 6d ).
  • the cooling 339 is activated, which ensures the cooling of the protective tube 312 and the container casing 314 stowed therein.
  • the container casing 314 which until then has still been stowed in the protective tube 312, is ejected (see FIG. 6e ).
  • the container casing 314 is prevented from being filled with the explosive mixture before being expelled from the protective tube 312 and this can be ignited.
  • the described limit switch 336 is not a mandatory feature of this embodiment.
  • the protective tube 312 can be pulled out of the combustion chamber back into the lock tube 350 after the explosion has occurred.
  • the passage opening is closed again via the slider device 354.
  • the overpressure in the lock tube 350 is correspondingly reduced, either via the blocking air supply means 353 or by opening the lock tube 350 when releasing the connection between the two mounting flanges 341, 351.
  • the embodiment according to Figure 5a-5g and 6a-6f is particularly suitable for cleaning combustion chambers with overpressure. Thanks to this cleaning device prevents hot gases from entering the cleaning lance into the combustion chamber because of the overpressure through the passage opening to the outside.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cleaning In General (AREA)

Claims (15)

  1. Ensemble de nettoyage (1, 51) destiné à retirer des dépôts dans des récipients en utilisant une technique d'explosion,
    l'ensemble présentant une lance de nettoyage (2, 52) dotée d'une partie d'extrémité côté poignée et d'une partie d'extrémité côté nettoyage (15, 16; 65, 66),
    la lance de nettoyage (2, 52) contenant un canal d'amenée (4, 54) présentant un ensemble (17, 67) de raccordement au récipient disposé sur la partie d'extrémité (16, 66) côté nettoyage et sur lequel une enveloppe flexible (14, 64) de récipient formant un espace de réception peut être placée, ainsi qu'un tube de protection (12, 62) doté d'un espace de réception pour une enveloppe de récipient (14, 64) servant à protéger l'enveloppe de récipient (14, 64) vis-à-vis de l'extérieur,
    caractérisé en ce que
    le canal d'amenée (4, 54) est disposé de manière à pouvoir coulisser par rapport au tube de protection (12, 62) le long d'un axe longitudinal (L) de la lance de nettoyage (2, 52) depuis une première position dans laquelle une enveloppe de récipient (14, 64) placée sur l'ensemble (17, 67) de raccordement de récipient est protégée vis-à-vis de l'environnement par le tube de protection (12, 62), jusque dans une deuxième position dans laquelle l'enveloppe de récipient (14, 64) déborde hors de la protection par le tube de protection (12, 62).
  2. Ensemble de nettoyage selon la revendication 1, caractérisé en ce que le tube de protection (12) ou un tube de guidage (26) relié au tube de protection (12) sont configurés comme tube coulissant guidé de manière à pouvoir coulisser sur la lance de nettoyage (2) par rapport au canal d'amenée (4) le long de l'axe longitudinal (L).
  3. Ensemble de nettoyage selon les revendications 1 ou 2, caractérisé en ce que le canal d'amenée (4, 54) est entouré par un tube extérieur (5, 55), de préférence un canal de refroidissement (18, 68), en particulier un canal annulaire de refroidissement (18, 68), étant formé entre le canal d'amenée (4, 54) et le tube extérieur (5, 55).
  4. Ensemble de nettoyage selon l'une des revendications 1 à 3, caractérisé en ce que le canal d'amenée (4, 54) est un corps tubulaire de conduit, en particulier un tube d'amenée.
  5. Ensemble de nettoyage selon l'une des revendications 3 à 4, caractérisé en ce que le tube de protection (12) et/ou le tube de guidage (26) relié à ce dernier sont guidés à coulissement le long de l'axe longitudinal (L) sur le tube extérieur (5).
  6. Ensemble de nettoyage selon l'une des revendications 1 à 5, caractérisé en ce que le tube extérieur (55) est réalisé en plusieurs pièces constituées d'au moins une première et une deuxième section (55a, 55b) de tube extérieur, en ce que le tube de protection (62) est relié à la deuxième section (55b) de tube extérieur et en ce que les deux ou plusieurs sections (55a, 55b) du tube extérieur peuvent coulisser télescopiquement l'une dans l'autre dans le sens de la longueur (L).
  7. Ensemble de nettoyage selon la revendication 6, caractérisé en ce que la première section (55a) de tube extérieur est passée par une section d'extrémité dans la deuxième section (55b) de tube extérieur ou en ce que la deuxième section (55b) de tube extérieur est passée par une section d'extrémité dans la première section (55a) de tube extérieur.
  8. Ensemble de nettoyage selon l'une des revendications 1 à 7, caractérisé en ce que l'ensemble de nettoyage présente des moyens d'actionnement par lesquels le canal d'amenée peut être glissé manuellement ou de manière automatique par rapport au tube de protection ou au tube de guidage le long de l'axe longitudinal (L).
  9. Ensemble de nettoyage selon l'une des revendications 1 à 8, caractérisé en ce que l'ensemble de nettoyage (1, 51, 301) comporte un composant d'insertion (33, 72, 340) apte à être fixé directement ou indirectement sur la paroi (31, 81, 331) du récipient et doté d'une section tubulaire de guidage par laquelle la lance de nettoyage (2, 52, 302) peut être guidée à coulissement.
  10. Ensemble de nettoyage selon l'une des revendications 1 à 9, caractérisé en ce que le canal d'amenée (4, 54) s'étend de la section d'extrémité côté poignée (15, 65) à la section d'extrémité côté nettoyage (16, 66) et en ce que sur la section d'extrémité côté poignée (15, 65), la lance de nettoyage (2, 52) présente des moyens permettant d'amener le mélange explosif ou des composants de ce dernier dans le canal d'amenée (4, 54).
  11. Ensemble de nettoyage selon l'une des revendications 3 à 10, caractérisé en ce que le tube extérieur (55a) est centré par rapport au tube d'amenée (54) par des éléments de centrage (80) disposés radialement le long de la périphérie extérieure du tube d'amenée (54).
  12. Ensemble de nettoyage selon l'une des revendications 1 à 11, caractérisé en ce qu'un élément (24) de limitation d'insertion est disposé sur le tube de protection (12), sur le tube de guidage ou sur une section (55b) du tube extérieur et sert de limite d'insertion pour le tube de protection (12) lors de l'insertion de la lance de nettoyage (2) dans un récipient.
  13. Ensemble de nettoyage selon l'une des revendications 9 à 12, caractérisé en ce que l'ensemble de nettoyage (1) comporte un composant d'insertion qui présente la forme d'une tubulure de montage (33) dotée d'une section de tube de guidage, pour l'insertion dans la paroi ou l'ouverture ménagée dans la paroi d'un récipient à nettoyer, et dans lequel la lance de nettoyage (2) peut être guidée à coulissement.
  14. Ensemble de nettoyage selon l'une des revendications 1 à 13, caractérisé en ce que la lance de nettoyage (2, 52, 302) présente un dispositif de commutateur de fin de course (36, 86, 336), qui, en particulier lorsque deux corps tubulaires (5, 26; 55a, 55b; 305, 326) sont assemblés de manière télescopique, déclenche un signal de commande lorsqu'une dimension définie de coulissement est atteinte et en particulier lorsqu'une position d'extrémité définie est atteinte.
  15. Procédé d'élimination de dépôts dans des récipients par une technique d'explosion en recourant à un ensemble de nettoyage selon l'une des revendications 1 à 14, caractérisé par les étapes suivantes :
    placement d'une enveloppe de récipient (14, 64) sur l'ensemble (17, 67) de raccordement de récipient de la section d'extrémité côté nettoyage (16, 66) de la lance de nettoyage (2, 52),
    déplacement du tube de protection (12, 62) par rapport au canal d'amenée (4, 54) en placer l'enveloppe de récipient (14, 64) dans l'espace de réception du tube de protection (12, 62),
    insertion de la lance de nettoyage (2, 52) par sa section d'extrémité côté nettoyage (16, 66) dans l'espace intérieur d'un récipient à nettoyer,
    déplacement du tube de protection (12, 62) par rapport au canal d'amenée (4, 54) en libérer l'enveloppe de récipient (14, 64),
    remplissage de l'enveloppe de récipient (14, 64) par un mélange explosif ou ses composants, et
    allumage du mélange explosif placé dans l'enveloppe de récipient (14, 64).
EP13811345.1A 2012-12-20 2013-12-17 Procédé et dispositif pour nettoyer des équipements de combustion Active EP2936026B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH02911/12A CH707256A1 (de) 2012-12-20 2012-12-20 Vorrichtung und Verfahren zum Reinigen von Verbrennungseinrichtungen.
PCT/CH2013/000225 WO2014094190A1 (fr) 2012-12-20 2013-12-17 Procédé et dispositif pour nettoyer des équipements de combustion

Publications (2)

Publication Number Publication Date
EP2936026A1 EP2936026A1 (fr) 2015-10-28
EP2936026B1 true EP2936026B1 (fr) 2016-11-09

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EP13811345.1A Active EP2936026B1 (fr) 2012-12-20 2013-12-17 Procédé et dispositif pour nettoyer des équipements de combustion

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US (1) US9636717B2 (fr)
EP (1) EP2936026B1 (fr)
CH (1) CH707256A1 (fr)
ES (1) ES2614786T3 (fr)
WO (1) WO2014094190A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH713804A1 (de) * 2017-05-24 2018-11-30 Bang & Clean Gmbh Vorrichtung und Verfahren zum Entfernen von Ablagerungen in Innenräumen von Behältern oder Anlagen.
US11841198B2 (en) 2019-01-16 2023-12-12 Dos Viejos Amigos, LLC Cleaning system and method
US10962311B2 (en) 2019-01-16 2021-03-30 Dos Viejos Amigos, LLC Heat recovery steam generator cleaning system and method
EP4160134A1 (fr) * 2021-09-30 2023-04-05 Conservator Tyche Beheer B.V. Dispositif et procédé de nettoyage interne des installations

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5230306A (en) 1991-07-25 1993-07-27 The Babcock & Wilcox Company Ceramic sootblower element
US6431073B1 (en) * 1998-01-14 2002-08-13 North American Industrial Services, Inc. Device, system and method for on-line explosive deslagging
SK287434B6 (sk) * 2001-04-12 2010-09-07 Bang & Clean Gmbh Spôsob čistenia nečistôt alebo pripálenín, alebo troskových usadenín v nádržiach a technických zariadeniach a zariadenie na jeho vykonávanie
US20080271685A1 (en) * 2007-05-04 2008-11-06 Lupkes Kirk R Detonative cleaning apparatus

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Publication number Publication date
US9636717B2 (en) 2017-05-02
CH707256A1 (de) 2014-06-30
US20150343501A1 (en) 2015-12-03
EP2936026A1 (fr) 2015-10-28
ES2614786T3 (es) 2017-06-01
WO2014094190A1 (fr) 2014-06-26

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