EP1120623A1 - Reinigungsanordnung von Heizrohren sowie Verfahren zur Reinigung von Heizrohren - Google Patents
Reinigungsanordnung von Heizrohren sowie Verfahren zur Reinigung von Heizrohren Download PDFInfo
- Publication number
- EP1120623A1 EP1120623A1 EP01101361A EP01101361A EP1120623A1 EP 1120623 A1 EP1120623 A1 EP 1120623A1 EP 01101361 A EP01101361 A EP 01101361A EP 01101361 A EP01101361 A EP 01101361A EP 1120623 A1 EP1120623 A1 EP 1120623A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cleaning
- pipe
- steam
- steam generator
- length
- 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.)
- Granted
Links
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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
Definitions
- the invention relates to a cleaning arrangement of heating pipes of a steam generator, with a cleaning pipe, which in has a steam outlet opening in a front area, through which the heating pipes of the steam generator are to be blown, and that via at least one through opening in the Steam generator room housing is insertable and a method for cleaning heating pipes with the features the preamble of claim 9.
- sootblowers show a one-piece, lance-like cleaning tube that during the cleaning process in the steam generator room of the steam generator is inserted between the heating pipes.
- the length of the one-piece cleaning tube corresponds approximately to that Diameter of the housing of the steam generator room or Half with two-sided arrangement. The length can be up to 18 Meters. Due to the one-piece design of the cleaning pipe is for storing the cleaning pipe outside a large storage room of the steam generator room is necessary. The storage room often even determines the enclosed space of the Steam generator building and is therefore for a large part of the Responsible for costs.
- the object of the present invention is therefore a cleaning arrangement of heating pipes to deliver a reliable Cleaning the heating pipes with steam ensures and at the same time a small space requirement, especially for storage having.
- the object is achieved in that several predetermined Lengths of the cleaning tube that can be inserted into the housing by means of provided pipe sections are adjustable.
- a maximum length of the cleaning pipe is at least one half insertion depth of the steam generator room corresponds the entire steam generator room is reached in that the cleaning pipe introduced into the steam generator room from several sides becomes. Since the maximum length of the cleaning pipe from is smaller in advance than with a cleaning pipe that is suitable for reaching the entire insertion depth of the steam generator space the minimum length will be even smaller. This sets the storage space requirement and also the shunting space for repositioning for the cleaning pipe further down.
- a cleaning arrangement that can be easily adjusted to different lengths is due to the fact that the pipe sections are telescopic are slidably arranged.
- the pipe sections are in the different stages, for example during storage or when fully extended each slidably bound to each other so that they are not must be taken apart as individual parts. At the same time good rigidity is given when extended.
- the displacement of the pipe sections through mechanical and / or hydraulic length adjustment systems is controlled.
- the insertion movement will thus promoted on the one hand by the vapor pressure, and on the other hand controlled by length adjustment systems to a too sudden extension movement or an uncontrolled movement of the cleaning pipe to prevent what may Can damage the heating pipes.
- the length adjustment systems can also be used to retrieve the extended Use pipe sections of the cleaning pipe.
- a targeted and effective flow and a good cleaning function of the cleaning steam is given by the fact that the steam outlet opening from at least one steam jet nozzle formed and attached in the front pipe section.
- the Steam jet nozzle focuses the cleaning steam and enlarges it hence its cleaning effect without the need for greater pressure when the steam enters the cleaning pipe or an increased Cleaning steam temperature would be necessary.
- Multiple heating tubes can be cleaned at the same time, though at least one further steam jet nozzle in the front pipe section attached to a first steam jet nozzle is. This increases the effectiveness of the steam used and diminished by the opposite attachment at the same time that that caused by the escape of the steam Impulse the cleaning pipe in its front part into one Longitudinal direction drives vertical direction. That way keeps the tip of the cleaning pipe in its position and leaves control yourself more easily.
- a particularly stable and usable with little effort Device is provided in that telescopic pipe sections each other in the sense of sufficient rigidity of the cleaning pipe overlap when the cleaning pipe is extended is.
- telescopic pipe sections each other in the sense of sufficient rigidity of the cleaning pipe overlap when the cleaning pipe is extended is.
- the pipe section in the cleaning pipe can be an overlap area adapted to the necessary support in the sense of a support area.
- the above task is accomplished through a cleaning process solved by heating pipes of steam generators in that the length of the cleaning tube before insertion or during of insertion into the steam generator room enlarged and during pulling out or reduced after pulling out becomes.
- the length of the cleaning pipe is thus before and after pulling out but also during insertion and pulling out changed, so that each optimal Length for each request is reached. To this Wise becomes a thorough cleaning process and a achieved very little space consumption.
- the compensating pivoting of the cleaning tube is advantageous provided that the pivoting of the cleaning tube laying on a wall of the lead-through opening the housing using mechanical and / or hydraulic Means done.
- the cleaning tube can be used heavy of metal. In the extended Condition, it makes sense for easy handling, a leverage point, especially by hanging on the Wall of the through opening of the housing, to get because then lower forces are used for pivoting have to.
- the pivoting can be very operationally reliable through use mechanical means, such as spindles, or by using hydraulic devices that attack in the rear tube area. Mechanical and hydraulic Agents can also be used in combination if it is a particularly heavy cleaning pipe or moved in particularly inaccessible places should.
- Fig. 1 shows a longitudinal section through a cleaning arrangement of heating pipes of a steam generator.
- the steam generator room 5 is surrounded by a housing 4, which has a through opening 3 is broken, through which a cleaning pipe 2 with a front area 30 ahead into the steam generator room 5 is inserted up to an engagement length 18.
- the cleaning pipe 2 consists essentially of several cylindrical, hollow pipe sections 9 ', 9'',9''', 9 IV , which can have the same or different lengths 10 ', 10'',10''', 10 IV and are telescopically inserted into each other.
- the pipe sections 9 ', 9'',9''', 9 IV enclose an interior space 21.
- the height 40 can be used for different pipe sections 9', 9 '', 9 ''', 9 IV or also in the case of guide limits and pipe end collars within a pipe section, the pipe end collars 45 ', 45'',45''' stabilize the pipe section end 46 and ensure a distance corresponding to the height 40 from the inner radii 32 '', 32 ''', 32 IV of the encompassing pipe sections 9 '', 9 ''', 9 IV .
- Spacers 39', 39 are also located on the outer radii 33 ', 33'',33'' of the pipe sections 9 ', 9'',9'''', 39 '''at a predetermined distance corresponding to a support length 19 to the pipe end collars 45', 45 '', 45 '''.
- the spacers 39 ', 39'',39''' again preferably have a height 40 and, on the one hand, also serve to maintain a certain, predetermined distance 40 between an inner pipe section and a surrounding pipe section.
- the spacers 39 ', 39'',39''' provide a stop for the inner pipe sections 9 ', 9'',9''' at the beginning 41 of the surrounding pipe sections 9 '', 9 ''', 9 IV attached guide limits 37 '', 37 ''', 37 IV .
- the support length 19 can be selected differently for different pipe sections 9 ', 9'',9''' depending on the load, preferably increasing with higher loads, ie from the first pipe section 9 'to the third pipe section 9'''. However, it should not be chosen too large either, since a certain part of the pipe section length remains unused due to the overlap and, on the other hand, the weight of the cleaning pipe increases due to the double wall, which is particularly important for a larger number of pipe sections.
- the cleaning pipe 2 By applying steam 47 to a cleaning pipe 2 at a predetermined pressure, the cleaning pipe 2 can be moved out of the pushed-together state of the pipe sections 9.
- Cleaning steam 47 is passed through a steam inlet opening 6 into the interior 21 of the cleaning pipe 2 surrounded by the pipe sections 9 ', 9'',9''', 9 IV . If there is sufficient overpressure, the steam 47 flows out at a steam outlet opening 7 arranged in the front region 30 of the cleaning tube 2 at a sufficient speed through two opposing steam jet nozzles 17, so that soiled heating surfaces 1 on the outside of the heating tubes can be cleaned therewith.
- FIG. 4 show a maximum extended state of the cleaning tube 2.
- the spacers 39 ', 39'',39''' of inner pipe sections 9 ', 9'',9''' or pipe end collars 45 ', 45'',45'arranged at a distance of a support length 19 slide therefrom 'on inner walls 32'',32''', 32 IV of the next pipe sections 9 '', 9 ''', 9 IV up to the spacers 39', 39 '', 39 '''on the guide limits 31'' , 37 ''', 37 IV or a length adjustment system 15 restricts the extension movement. This means that the pipe sections sit securely inside one another, even under the highest loads.
- the length adjustment system 15 consists, for example, of a device for the controlled unwinding and winding up of a control cable 26, which is guided through a control cable guide 28 in a guide wall 42 of the cleaning tube 2.
- a control cable guide 28 in a guide wall 42 of the cleaning tube 2.
- cross struts 29 each attached to a pipe section 9 ′′, 9 ′′ ′′, 9 IV , which are stretched between opposite inner walls of a pipe section and each have a connecting point 31 for the control cable 26 to be passed through.
- the beginning of the control cable 26 is fastened in the foremost pipe section 9 'to a securing device 43, which is seated in the inner radius 32' of the first pipe section 9 '.
- the cleaning pipe 2 with the outer radius 33 IV of the last pipe section 9 IV is preferably movably mounted on a wall 16 of the through opening 3 of the housing 4, since this is very stable and is not extended.
- the movable mounting is carried out, for example, via a holding arrangement 49 with a movable element 50, to which the outer radius 33 IV is secured captively in the area of the guide limitation 37 IV .
- a return movement is caused by the length adjustment system 15.
- the foremost pipe section 9 ' is retracted until it abuts the cross struts 29 of the surrounding, second pipe section 9'', which in turn, upon further retraction, abuts the cross struts 29 of a third pipe section 9''' surrounding it and so on further.
- the pipe sections 9 ′′, 9 ′′ ′′, 9 IV can be pushed into one another until they all abut the cross struts 29 of the surrounding pipe sections.
- the cleaning tube 2 then has a minimum length 11. In this rest position, the front pipe sections 9 ′, 9 ′′, 9 ′′ ′′ are essentially drawn into the last pipe section 9 IV and in particular do not protrude into the steam generator space 5.
- the guide limits 31 '', 31 ''', 37 IV are attached with play against the outer radius 33', 33 '', 33 '''of the inner tube sections 9', 9 '', 9 ''', so that one Flowing through the interior 21 with steam between the inner pipe sections 9 ', 9'',9''' and the guide delimiters 37 '', 31 ''', 37 IV, a certain proportion of the steam 47 flows out and a barrier against the ingress of aggressive flue gases or soot from the steam generator.
- At least one opening 51 ', 51'',51''' is located between two pipe sections in a wall 52 ', 52'',52''' of the inner pipe section, through which cleaning steam 47 lies between the outer radius of the inner pipe section and can flow through the inner radius of the outer tube section and flows out between the guide delimitation and the outer radius of the inner tube section.
- the cleaning tube 2 is placed on a wall 16 of the through opening 3 of the housing 4 before or during the extension, preferably on the last tube section 9 IV movably attached for pivoting movements as described above.
- the engagement length 18 changes, the cleaning tube 2 is pivoted in the vertical direction 23 by means of a mechanical and / or hydraulic height adjustment system 25, which is fastened in the end region 36 of the cleaning tube 2, so that there is a straight horizontal movement of the front region 30 of the cleaning tube 2 .
- end area 36 is lowered and thus front area 30 is raised, and with decreasing engagement length 18, end area 36 is raised and front area 30 is thus lowered.
- condensate outlet 24 is provided to remove condensate vapor 47 from within of the cleaning pipe 2 forming condensate 48.
- This outlet 24 is preferably located at a deep point in the Cleaning pipe 2. In the rest position, the cleaning pipe continue to be pivoted so that any possible Smaller intermediate sinks condensate 48 targeted can be dissipated.
- FIG. 2 shows a cross section through the cleaning tube 2 from FIG. 1 along II / II.
- the pipe sections 9 ', 9'',9''', 9 IV are preferably cylindrical.
- the diameters 27 ', 27'',27''', 27 IV of the pipe sections 9 ', 9'',9'', 9 IV increase from the front pipe section 9 'to the last pipe section 9 IV .
- the diameter 27 'of a pipe section 9' is almost constant over the length 10 'of the pipe section 9' or it increases slightly from the front end 41 to the rear end 46 of a pipe section.
- three spacers 39 ′′ are attached to the outer radius 33 ′′ distributed on a pipe section 9 ′′, as a result of which a distance of the height 40 from the comprehensive pipe section 9 ′′ ′′ is maintained.
- FIG. 3 shows a cleaning tube 2 which is retracted into the steam generator space 5 up to the engagement length 18 in its maximum length 12.
- the tube sections 9 ', 9'',9''', 9 IV of the lengths 10 ', 10'',10''', 10 IV are extended until the guide limits 37'',37''', 37 IV touch the spacers 39 ', 39'',39''. There are overlapping areas of the support length 19 between the individual pipe sections.
- FIG. 4 shows a cleaning pipe 2 with a minimal length 11 and a completely extended cleaning pipe 2.
- the maximum length 12 of the cleaning pipe 2 is approximately three times a pipe section length.
- the minimum length 11 is approximately one pipe section length.
- the telescopic construction of the cleaning tube according to the invention thus reduces the length of the cleaning tube by 2/3. In the retracted state, the cleaning pipe 2 can be stored in a space-saving manner outside the steam generator room 5 until it is extended again for the next cleaning operation.
- the maximum length 12 of the cleaning tube 2 corresponds at least half an insertion depth 13 of the steam generator space 5.
- the insertion depth 13 corresponds to that occupied by heating surfaces 1 Diameter of the steam generator room 5. In this way through the cleaning pipe 2 when used from two sides in the steam generator room 5, the entire heating surface to be cleaned 1 easy to get to.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Cleaning In General (AREA)
Abstract
Description
- Fig. 1:
- einen Längsschnitt durch eine Reinigungsanordnung,
- Fig. 2:
- einen Querschnitt durch ein Reinigungsrohr aus Fig. 1 entlang der Linie II-II,
- Fig. 3:
- ein ausgefahrenes Reinigungsrohr und
- Fig. 4:
- Reinigungsrohre im Dampferzeugerraum.
Claims (13)
- Reinigungsanordnung von Heizrohren eines Dampferzeugers, mit einem Reinigungsrohr (2), das in einem vorderen Bereich (30) eine Dampfaustrittsöffnung (7) aufweist, durch die die Heizrohre des Dampferzeugers zu beblasen sind, und das über zumindest eine Durchführungsöffnung (3) in ein den Dampferzeugerraum (5) aufweisendes Gehäuse (4) einführbar ist, dadurch gekennzeichnet, daß mehrere vorbestimmte Längen (8) des in das Gehäuse (4) einführbaren Reinigungsrohrs (2) mittels dafür vorgesehener Rohrabschnitte (9', 9'', 9''', 9IV) einstellbar sind.
- Reinigungsanordnung nach Anspruch 1, dadurch gekennzeichnet, daß eine maximale Länge (12) mindestens einer halben Einführtiefe (13) des Dampferzeugerraums (5) entspricht.
- Reinigungsanordnung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Rohrabschnitte (9', 9'', 9''', 9IV) teleskopisch ineinander verschiebbar angeordnet sind.
- Reinigungsanordnung nach Anspruch 3, dadurch gekennzeichnet, daß die Rohrabschnitte (9', 9'', 9''', 9IV) dampfdruckbetrieben ausfahrbar sind.
- Reinigungsanordnung nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß die Verschiebung der Rohrabschnitte (9', 9'', 9''', 9IV) durch mechanische und/oder hydraulische Längeneinstellungssysteme (15) kontrolliert ist.
- Reinigungsanordnung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß Rohrabschnitte (9', 9'', 9''', 9IV) mit dampfdurchlassendem Spiel zusammengebaut sind.
- Reinigungsanordnung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß teleskopierende Rohrabschnitte (9', 9'', 9''', 9IV) einander im Sinne einer hinreichenden Steifigkeit des Reinigungsrohrs (2) überlappen, wenn das Reinigungsrohr (2) ausgefahren ist.
- Reinigungsanordnung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Rohrabschnitte (9'', 9''', 9IV) mit Abstreifkanten (20) versehen sind, an denen jeweils ein innenliegender Rohrabschnitt (9', 9'', 9''') beim Zurückziehen (3) vorbeiziehbar ist.
- Verfahren zur Reinigung von Heizrohren von Dampferzeugern, bei dem ein Reinigungsrohr (2), mit einer Dampfaustrittsöffnung (7) durch eine Durchführungsöffnung (3) eines Gehäuses (4) in einen Dampferzeugerraum (5) eingeführt wird, und bei dem dem Reinigungsrohr (2) Reinigungsdampf zugeführt wird, der durch die Dampfaustrittsöffnung (7) auf die Heizrohre des Dampferzeugers geblasen wird, zur Anwendung bei einer Reinigungsanordnung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Länge (8) des Reinigungsrohrs (2) vor dem Einführen oder während des Einführens in den Dampferzeugerraum (5) vergrößert und während eines Herausziehens oder nach einem Herausziehen verkleinert wird.
- Verfahren nach Anspruch 9, dadurch gekennzeichnet, daß das Reinigungsrohr (2) beim Wechsel in die Ruheposition außerhalb des Dampferzeugerraums (5) zusammengeschoben wird und mit einer minimalen Länge (11) verwendet wird.
- Verfahren nach Anspruch 9 oder 10, dadurch gekennzeichnet, daß das Reinigungsrohr (2) während des Beblasens der Heizrohre mit Dampf mit der Dampfaustrittsöffnung (7) parallel zu den Heizrohren geführt wird.
- Verfahren nach einem der Ansprüche 9 bis 11, dadurch gekennzeichnet, daß das Reinigungsrohr (2) mit zunehmender Eingriffslänge (18) von einer Schwenkeinrichtung rohranhebend und bei abnehmender Eingriffslänge (18) rohrabsenkend geschwenkt wird.
- Verfahren nach einem der Ansprüche 9 bis 12, dadurch gekennzeichnet, daß das Schwenken des Reinigungsrohrs (2) unter Auflegen auf einer Wand (16) der Durchführungsöffnung (3) des Gehäuses (4) unter Einsatz mechanischer und/oder hydraulischer Mittel erfolgt.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10003713 | 2000-01-28 | ||
| DE10003713 | 2000-01-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1120623A1 true EP1120623A1 (de) | 2001-08-01 |
| EP1120623B1 EP1120623B1 (de) | 2005-10-26 |
Family
ID=7629035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20010101361 Expired - Lifetime EP1120623B1 (de) | 2000-01-28 | 2001-01-22 | Reinigungsanordnung von Heizrohren sowie Verfahren zur Reinigung von Heizrohren |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1120623B1 (de) |
| DE (1) | DE50107785D1 (de) |
| PL (1) | PL196259B1 (de) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10144086A1 (de) * | 2001-09-08 | 2003-04-10 | Reinhard Leithner | Teleskopreinigungseinrichtung |
| CN101706231B (zh) * | 2004-03-24 | 2012-12-05 | 阿利发Np有限公司 | 用于清洁换热器的管的喷嘴、喷头和方法 |
| DE102012104870A1 (de) * | 2012-06-05 | 2013-12-05 | Clyde Bergemann Gmbh Maschinen- Und Apparatebau | Vorrichtung und Verfahren zum Reinigen eines Rauchgaskanals |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2257936A (en) * | 1937-07-19 | 1941-10-07 | Diamond Power Speciality | Boiler cleaner |
| US2696016A (en) * | 1950-04-11 | 1954-12-07 | Diamond Power Speciality | Retractable soot blower |
| US3750230A (en) * | 1972-04-07 | 1973-08-07 | Copes Vulcan Inc | Soot blower |
| JPS5765595A (en) * | 1980-10-08 | 1982-04-21 | Mitsubishi Heavy Ind Ltd | Cleaning device |
| US4646768A (en) * | 1983-07-18 | 1987-03-03 | Mitsubishi Jukogyo Kabushiki Kaisha | Extendable and retractable cleaning apparatus |
-
2001
- 2001-01-22 DE DE50107785T patent/DE50107785D1/de not_active Expired - Lifetime
- 2001-01-22 EP EP20010101361 patent/EP1120623B1/de not_active Expired - Lifetime
- 2001-01-26 PL PL345445A patent/PL196259B1/pl unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2257936A (en) * | 1937-07-19 | 1941-10-07 | Diamond Power Speciality | Boiler cleaner |
| US2696016A (en) * | 1950-04-11 | 1954-12-07 | Diamond Power Speciality | Retractable soot blower |
| US3750230A (en) * | 1972-04-07 | 1973-08-07 | Copes Vulcan Inc | Soot blower |
| JPS5765595A (en) * | 1980-10-08 | 1982-04-21 | Mitsubishi Heavy Ind Ltd | Cleaning device |
| US4646768A (en) * | 1983-07-18 | 1987-03-03 | Mitsubishi Jukogyo Kabushiki Kaisha | Extendable and retractable cleaning apparatus |
Non-Patent Citations (1)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 006, no. 146 (M - 147) 5 August 1982 (1982-08-05) * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10144086A1 (de) * | 2001-09-08 | 2003-04-10 | Reinhard Leithner | Teleskopreinigungseinrichtung |
| CN101706231B (zh) * | 2004-03-24 | 2012-12-05 | 阿利发Np有限公司 | 用于清洁换热器的管的喷嘴、喷头和方法 |
| DE102012104870A1 (de) * | 2012-06-05 | 2013-12-05 | Clyde Bergemann Gmbh Maschinen- Und Apparatebau | Vorrichtung und Verfahren zum Reinigen eines Rauchgaskanals |
| WO2013182554A3 (de) * | 2012-06-05 | 2014-02-20 | Clyde Bergemann Gmbh Maschinen- Und Apparatebau | Vorrichtung und verfahren zum reinigen eines rauchgaskanals |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1120623B1 (de) | 2005-10-26 |
| PL196259B1 (pl) | 2007-12-31 |
| PL345445A1 (en) | 2001-07-30 |
| DE50107785D1 (de) | 2005-12-01 |
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