WO2009030680A2 - Vorrichtung zum reinigen eines kessels einer verbrennungsanlage und verfahren zu deren betrieb - Google Patents
Vorrichtung zum reinigen eines kessels einer verbrennungsanlage und verfahren zu deren betrieb Download PDFInfo
- Publication number
- WO2009030680A2 WO2009030680A2 PCT/EP2008/061553 EP2008061553W WO2009030680A2 WO 2009030680 A2 WO2009030680 A2 WO 2009030680A2 EP 2008061553 W EP2008061553 W EP 2008061553W WO 2009030680 A2 WO2009030680 A2 WO 2009030680A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- boiler
- connection
- flow channel
- cleaning
- changer
- Prior art date
Links
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
-
- 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
-
- 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
- B08B9/093—Cleaning containers, e.g. tanks by the force of jets or sprays
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/48—Devices or arrangements for removing water, minerals or sludge from boilers ; Arrangement of cleaning apparatus in boilers; Combinations thereof with boilers
- F22B37/486—Devices for removing water, minerals or sludge from boilers
-
- 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
- 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
- F28G15/04—Feeding and driving arrangements, e.g. power operation
Definitions
- the present invention relates to a device for cleaning a boiler of a combustion plant, comprising a fluid distributor, which has at least one flow channel with an inlet opening and an outlet opening, wherein the inlet opening is connectable to a supply line for a fluid.
- a method for operating such a device for temporarily cleaning a boiler of an internal combustion engine is specified here.
- the hot flue gas is conducted past a plurality of heat exchangers so that the heat is transferred to a heat exchange medium, in particular water, flowing in the heat exchangers.
- a heat exchange medium in particular water
- impurities, soot, and the like remain adhering, which in the medium term hinder the heat transfer from the flue gas to the heat exchange medium. Therefore, it is necessary to remove the heat exchangers from these impurities at specified intervals.
- cleaning devices are used, as described in WO 96/38704.
- a space-saving constructed cleaning device of the same kind is apparent from EP 1 259 762 Bl.
- This cleaning device which is referred to in the Applicant in particular as water lance laser, has a water lance, with a bundled jet of water can be discharged through the boiler room on an opposite wall or a heat exchanger, thereby removing the impurities adhering there. Such cleaning may occur during operation of the incinerator.
- the impact area of the water jet is guided along a predetermined path on the surface to be cleaned, also called blowing figure.
- the route is meandering (but not compulsory) and thus, for example, also deliberately circles obstacles, openings or other sensitive zones in the cleaning area. Due to the genetic water jet energy and the sudden evaporation of water penetrated in the pores of the impurities, the pollutants from the soot, slag and ash are broken off.
- the device according to the invention for cleaning a boiler of a combustion plant comprises a fluid distributor which has at least one flow channel with an inlet opening and an outlet opening, wherein the inlet opening can be connected to a supply line for a fluid.
- the device is characterized in that the flow channel is designed with at least one connection changer, with which a separation of the at least one flow channel from the supply line and a connection of the at least one flow channel with at least one further connection unit can be performed.
- a "fluid distributor” means, in particular, a tube-like construction which comprises in its center a flow channel or optionally also a plurality of flow channels.
- the fluid distributor is in particular a so-called blowing tube for a cleaning device in the manner of a water lance laser.
- a fluid preferably water, but possibly also steam, air, etc. or mixtures of these fluids
- the supply line is advantageously flexible and should be at least partially resistant to high temperatures, so that it is preferably formed with a metal tube.
- means for moving the fluid distributor are provided.
- the means may comprise mechanical, magnetic, electromechanical, pneumatic or other drives, such as spindles, linear drives, etc., preferably in a cross or bridge arrangement for the realization of a simple control in the Cartesian coordinate system.
- moving is meant in particular a pivoting of the blower tube to a fixed point, but it is also possible that in this case takes place a rotation and / or displacement of the fluid distributor. In principle, it is also possible that several types of movement overlap at least partially during operation in the device.
- the flow channel is designed with at least one connection changer.
- the connection changer encloses or forms part of the flow channel.
- the connection changer now has the function, on the one hand to connect the supply line for the cleaning fluid with the at least one flow channel, in particular at the time of the cleaning process, but at desired times to solve the connection or disconnect and connect to another connection unit to realize.
- the connection changer has the property of realizing a relative movement between the supply line, the connection unit, etc., on the one hand, and the inlet opening of the flow passage of the fluid distributor, on the other hand.
- the connection changer is a device which enables the separation or connection of the flow channel or the fluid distributor with the supply line and the other connection units with corresponding drives.
- the connection exchanger with the supply line on the one hand and at least one further connection unit on the other hand.
- the at least one flow channel at a specific time is preferably connected in each case only to the supply line or to a further connection unit, ie the connection changer decides which alternative connection option or function is implemented here.
- the at least one connection changer comprises a plurality of connection units. This may mean that the connection changer itself is designed with functional units that are integrated in the connection changer or positioned on it, in which case small units are particularly suitable for this purpose.
- connection changer is a kind of multifunctional coupling point, which connects at least one flow channel and its fluid distributor with different connection units.
- the at least one connection changer comprises a turntable which has connections distributed over the circumference, which can be connected to the inlet opening.
- the connection changer comprises a plurality of hubs, which are mounted concentrically.
- the particular eccentrically positioned to the fluid distributor turntable is designed with a peripheral region which sweeps over the inlet opening during rotation of the turntable.
- the desired connection can be positioned in front of the inlet opening of the fluid distributor by means of a corresponding positioning of connections over the circumference and a concretely definable rotation angle of the rotary disk.
- the connections are preferably designed in such a way that, in particular for a fluid, they are also tight under operating conditions of the device, that is to say in particular liquid-tight and / or even gas-tight.
- the at least one connection unit comprises at least one of the following group: solid-state accelerator, radiation sensor, laser emitter, optical detection system, cleaning unit, sealing unit, cooling unit, suction device.
- a solid-state accelerator is used in particular to solid (balls, particles, ice, etc.) with - or possibly without - a support medium to move through a flow channel, so that when these solids hit the boiler wall or the heat exchanger, a corresponding cleaning can be achieved.
- a radiation sensor system in particular radiations (visible or invisible light, sound, etc.) can be transmitted in the boilers of the incinerator and / or be received again.
- a laser emitter that is to say a source for a laser light
- the connection changer to connect the fluid distributor with an optical detection system, for example, a telescope, a camera or similar instruments, which permit a visual inspection of the interior of the boiler or of the contamination.
- a cleaning unit in particular for mechanical and / or pneumatic cleaning of the flow channel itself, be connected via the connection changer to the fluid distributor.
- a sealing unit for sealing at least one flow channel at the connection changer.
- cooling units can set the temperature of the fluid distributor or the wall of the flow channel so that the function of the fluid distributor or another connection unit is ensured.
- a connection unit and a suction device may be provided, which thus removes particles and / or gases from the interior of the boiler.
- the connection changer can preferably connect the flow channels independently-that is, in particular freely selectable-to different and / or identical connection units.
- the invention also has in mind a boiler of a combustion plant with at least one device of the type described here according to the invention, in which the fluid distributor is arranged movable in a boiler wall so that the outlet opening in the interior of the boiler and the at least one connection changer outside the boiler , for this purpose, the fluid distributor is arranged in particular on the outside of the boiler wall in a frame fragment around a hatch of the boiler wall.
- This frame fragment accommodates, for example, the movement means for the fluid distributor.
- These moving means are now articulated to a region of the fluid distributor which is provided outside the boiler, in particular between the connection exchanger and the boiler wall.
- the front end of the fluid distributor, in particular the nozzle is arranged in or on a corresponding receptacle or hatch or joint of the vessel wall.
- a carry-in of the fluid distributor is regularly realized, albeit only to a small extent, of the flow channel.
- essays, adapters, joints or the like may be provided, which then extend in the same way to or into the boiler interior.
- a method for operating a device for temporarily cleaning a boiler of a combustion system of the type described herein according to the invention, wherein the device automatically connected by means of at least one connection changer with different connection units and at least by the least one flow channel one of the following processes is carried out between several cleaning processes with a water jet:
- the use of the device according to the invention is shown in a boiler of the type described above.
- the cleaning processes are carried out regularly only when a corresponding degree of slagging is achieved in the area of influence of the device or the cleaning device according to the invention.
- a function of the fluid distributor can be realized via the various connection units or the supply line.
- different functions can be separated and / or realized together with the device at predetermined, targeted times.
- the connection change is carried out automatically, i. especially fully automatic.
- the individual processes relate in particular to the cleaning of the flow channel and / or of an inner region of the vessel with solids, which may be moved or shot through the flow channel via a carrier medium (for example a fluid).
- gases at predetermined times and predetermined positions or positions of the connection changer can be either blown out or sucked in via the flow channel.
- an environmental parameter it can additionally be stated that this may be necessary in particular for monitoring the combustion processes, the degree of slagging of the heat exchangers, the cleaning of heat exchangers and the control of these individual processes.
- sound generators, sound receivers, optical aggregates (camera, pyrometers, lasers, etc.), radiation conductors, sensors, grippers or similar elements can interact via the at least one flow channel with the interior of the boiler and thus determine the environmental parameters.
- a state variable is in particular Inside the boiler meant, such as the internal temperature of the boiler, the flow velocity and / or temperature of the flue gas, the distance to an object inside the boiler, the degree of purification of the heat exchanger, the reflection behavior of components and / or installations of the boiler or the like.
- the environmental parameter also includes average values, areal and / or spatial distributions of the parameter, the change behavior of the environmental parameter or the like.
- the flow channel can also be temporarily sealed via the connection unit.
- a laser can be emitted in particular through the flow channel, which hits a reference point on the opposite inner side of the boiler. This ensures that the desired target for the fluid distributor is also achieved during thermal expansion of components of the boiler and / or the device.
- the at least one flow channel can also be used to generate an image of the interior of the boiler, for example a film, an image, a thermal image or the like.
- FIG. 1 shows a first embodiment of a device according to the invention
- FIG. 3 shows a variant of a boiler of a combustion plant with erf ⁇ ndungsdorfen devices
- 4 shows a further embodiment variant of the device according to the invention.
- FIG. 1 shows schematically an embodiment variant of a device 1 for cleaning a boiler, not shown here, of an incinerator.
- the device 1 is arranged in all directions at an angle 23 in a hatch 25 of the vessel wall 24.
- the device 1 comprises a fluid distributor 2 which extends through the hatch 25 into inner regions. This makes it possible for the outlet opening 5 for the cleaning fluid 22 of the flow channel 30 to be positioned inside the boiler.
- the inlet opening 4 is provided on the side opposite the outlet opening 5 side of the flow channel 3, the inlet opening 4 is provided.
- a connection changer 7 likewise sets in, via which the supply line 6 for the cleaning fluid 22 is attached to the flow channel 3 in the illustrated position.
- connection changer 7 is designed so that it moves, for example, on a corresponding command of a controller 34 towards the supply line 6 from the flow channel 3 (see schematic arrow) and another connection unit 8, here for example a solid-state accelerator 12, in front of the inlet opening 4 of the flow channel 2 positioned.
- the flow channel 3 can be used for the transport or the introduction of solids in the interior of the boiler.
- FIG. 2 schematically shows a detail of a further embodiment variant of the device 1 with a connection changer 7.
- the flow channel 3 is viewed in the direction of the boiler with the upstream connection changer 7.
- the connection changer 7 is designed with two turntables 9 which, like FIG illustrated with the dotted arrows, are rotatable against each other positioned so that they each cover a correspondingly shaped first flow channel and second flow channel 3.
- the fluid distributor 2 is formed in this illustration so that the smaller turntable 9 actually only covers a first flow channel 3 and thus the partition wall between the first flow channel and the second flow channel coincides with the peripheral edge of the smaller turntable 3.
- the outer, larger turntable 9 may be provided with corresponding connections, which can be aligned independently of the position of the interior, smaller turntable 9 to the fluid manifold 2.
- the larger turntable 9 is now provided with a single connection 11, which allows a connection to a laser emitter 15 and a radiation sensor 14.
- the inner, smaller turntable 9, in contrast, has six different connections 11, which are each connected to a connection unit 8, which is illustrated by the double arrows.
- the port changer 7 alternatively provides ports 11 for a seal unit 19, a refrigeration unit 20, a cleaning unit 18, a suction device 21, and an optical detection system 17. It is preferred that the terminals 11 are evenly distributed over the circumference 20 of the hub 9, in particular, a penetration of the adjacent turntable is made possible.
- FIG. 3 is intended to schematically illustrate the use of the devices 1 according to the invention in a boiler 13 of an incinerator 16.
- the bottom of the combustion chamber is shown with the flame 32, which is optionally generated by a plurality of burners 31.
- a plurality of plane sections 27 are now provided, which are each designed with one or more devices 1 in the manner of a cleaning apparatus (in particular water lance blower).
- a plurality of sensors 29 may be provided in the individual plane sections 27 in order to realize or monitor, for example, the degree of vaporizing in the vessel 13.
- a higher-level control unit 40 can then realize, for example, the cleaning process via the device 1, with corresponding control signals being transmitted via the data connections 28.
- the control unit 40 controls, for example, the devices 1 (or also the connection changers 7), the flame position via the burners 31 via control lines 33, etc.
- the exhaust gas generated by the flame 32 not only flows over the wall of the boiler 13 but also therein or subsequently arranged heat exchanger 26, which can also be optionally cleaned with the devices 1.
- FIG. 4 A further embodiment variant of the device is illustrated schematically in FIG. 4. Shown again is the fluid distributor 2, which is positioned with its outlet opening 5 in a corresponding hatch of the vessel wall 24.
- the fluid distributor 2 is connected via an articulation 39 with the movement means (not shown here), which ultimately realizes the movement of the fluid distributor 2, in particular in the manner of a so-called water lance laser of the type described above.
- an additional blocking air supply 38 is provided, with which a gas can be guided into inner areas of the fluid distributor 2 and thus via the outlet opening 5 in the boiler, so that penetration of dust is avoided.
- connection changer 7 In the region of the inlet opening 4, which is here connected in the darg Marieen embodiment via the coupling 37 of the connection changer 7 with the supply line 6, the connection changer 7 is preferably mounted equally.
- the connection changer 7 in this case also comprises a drive 35, which is fastened directly on the fluid distributor 2. This allows, for example, a rotation of the coupling 37 about the axis of rotation 36, so that equally the additionally shown connection unit 8 can be positioned in front of the inlet opening 4.
- sealing means for contacting with the fluid Expensive 2 be provided. This configuration of the connection changer in the manner of a "drum turret" can be realized relatively compact and with little mechanical effort.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Supply (AREA)
- Gasification And Melting Of Waste (AREA)
- Incineration Of Waste (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08803524A EP2185866A2 (de) | 2007-09-04 | 2008-09-02 | Vorrichtung zum reinigen eines kessels einer verbrennungsanlage und verfahren zu deren betrieb |
US12/676,131 US20100275857A1 (en) | 2007-09-04 | 2008-09-02 | Device for cleaning a boiler of a combustor, and method for the operation thereof |
CN200880105606.4A CN101809369B (zh) | 2007-09-04 | 2008-09-02 | 用于清理燃烧设备的锅炉的装置及其操作方法和相应锅炉 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007042051 | 2007-09-04 | ||
DE102007042051.1 | 2007-09-04 | ||
DE102007062449.4 | 2007-12-22 | ||
DE102007062449A DE102007062449A1 (de) | 2007-09-04 | 2007-12-22 | Verfahren und Vorrichtung zur Reinigung von Heizflächen und/oder Überwachung von Betriebszuständen einer Wärmeanlage |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2009030680A2 true WO2009030680A2 (de) | 2009-03-12 |
WO2009030680A3 WO2009030680A3 (de) | 2010-04-08 |
Family
ID=40348694
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2008/061553 WO2009030680A2 (de) | 2007-09-04 | 2008-09-02 | Vorrichtung zum reinigen eines kessels einer verbrennungsanlage und verfahren zu deren betrieb |
Country Status (5)
Country | Link |
---|---|
US (1) | US20100275857A1 (de) |
EP (1) | EP2185866A2 (de) |
CN (1) | CN101809369B (de) |
DE (1) | DE102007062449A1 (de) |
WO (1) | WO2009030680A2 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120031350A1 (en) * | 2010-08-06 | 2012-02-09 | General Electric Company | Ice blast cleaning systems and methods |
KR20220067320A (ko) | 2020-11-17 | 2022-05-24 | 주식회사 태성이엔지 | 화력발전용 물분사 세척 장치 |
Families Citing this family (7)
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FI124057B (fi) * | 2012-12-05 | 2014-02-28 | Metso Power Oy | Järjestely termisessä prosessissa ja menetelmä likakerroksen paksuuden mittaamiseksi |
CN104406177B (zh) * | 2014-11-28 | 2016-08-24 | 枣庄矿业(集团)有限责任公司柴里煤矿 | 管式空气预热器冲动式清灰器 |
CN104654323B (zh) * | 2015-01-09 | 2017-01-25 | 山东大学 | 一种基于凸轮运动实现气流切割的声波除灰器 |
CN106122991B (zh) * | 2016-08-16 | 2018-04-06 | 沈阳东朝红革仪器仪表有限公司 | 冲击波变路释放系统 |
FR3124250B1 (fr) * | 2021-06-16 | 2023-06-09 | A X System | Dispositif de nettoyage à inversion de sens hydraulique |
WO2023247840A1 (fr) * | 2022-06-23 | 2023-12-28 | A X System | Dispositif de nettoyage à inversion de sens hydraulique |
CN117782915B (zh) * | 2024-02-23 | 2024-05-28 | 武汉光谷蓝焰新能源股份有限公司 | 一种生物质锅炉烟气检测装置 |
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DD281448B5 (de) | 1987-07-15 | 1996-09-05 | Ver Energiewerke Ag | Verfahren zur Ermittlung eines Verschlackungsbereiches an den inneren Wandflaechen einer Brennkammer einer Kohlenstaubfeurung |
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-
2007
- 2007-12-22 DE DE102007062449A patent/DE102007062449A1/de not_active Withdrawn
-
2008
- 2008-09-02 US US12/676,131 patent/US20100275857A1/en not_active Abandoned
- 2008-09-02 WO PCT/EP2008/061553 patent/WO2009030680A2/de active Application Filing
- 2008-09-02 EP EP08803524A patent/EP2185866A2/de not_active Withdrawn
- 2008-09-02 CN CN200880105606.4A patent/CN101809369B/zh not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120031350A1 (en) * | 2010-08-06 | 2012-02-09 | General Electric Company | Ice blast cleaning systems and methods |
KR20220067320A (ko) | 2020-11-17 | 2022-05-24 | 주식회사 태성이엔지 | 화력발전용 물분사 세척 장치 |
Also Published As
Publication number | Publication date |
---|---|
DE102007062449A1 (de) | 2009-03-19 |
EP2185866A2 (de) | 2010-05-19 |
US20100275857A1 (en) | 2010-11-04 |
CN101809369B (zh) | 2013-06-19 |
CN101809369A (zh) | 2010-08-18 |
WO2009030680A3 (de) | 2010-04-08 |
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