EP1660247B1 - Verfahren zum reinigen eines verunreinigungen enthaltenden produktgasrohrs und das verfahren verwendende vorrichtung - Google Patents
Verfahren zum reinigen eines verunreinigungen enthaltenden produktgasrohrs und das verfahren verwendende vorrichtung Download PDFInfo
- Publication number
- EP1660247B1 EP1660247B1 EP04742100A EP04742100A EP1660247B1 EP 1660247 B1 EP1660247 B1 EP 1660247B1 EP 04742100 A EP04742100 A EP 04742100A EP 04742100 A EP04742100 A EP 04742100A EP 1660247 B1 EP1660247 B1 EP 1660247B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pipe
- impurities
- cleaning
- chains
- product gas
- 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.)
- Expired - Lifetime
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000012535 impurity Substances 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 3
- 239000007787 solid Substances 0.000 claims abstract description 3
- 239000007789 gas Substances 0.000 description 18
- 238000002309 gasification Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
Images
Classifications
-
- 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
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
-
- 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
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
- B08B9/0436—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes provided with mechanical cleaning tools, e.g. scrapers, with or without additional fluid jets
Definitions
- the present invention relates to a method for cleaning a pipe carrying a product gas containing impurities, said pipe being substantially rectangular in cross-section.
- the invention also relates to an apparatus implementing the method.
- the invention thus relates to piping for a product gas containing different impurities.
- Impurities are produced e.g. in connection with energy production in gasification power plants.
- thermal power plants based on gasification it is common that the pipes used to conduct gases containing impurities get clogged with time. Therefore, the pipes have to be cleaned from time to time, which involves an interruption of actual energy production. This causes additional costs. Moreover, the cleaning is a cumbersome operation.
- the object of the present invention is to create a method for use in this type of gas pipe system that is free of the above-described, drawbacks.
- the method of the invention whereby solid and/or liquid impurities are detached from the walls of the pipe is characterized in that the impurities are returned into the apparatus, such as a gas generator, producing the product gas.
- a further object of the invention is to create an apparatus for implementing the method.
- the apparatus whereby a mechanical system for cleaning the pipe walls has been built inside the pipe is characterized in that the impurities detached during the cleaning are returned by the same system into the device, such as a gas generator, producing the product gas.
- a preferred embodiment of the apparatus of the invention is characterized in that the apparatus comprises a pair of chain sprockets mounted beside the side walls of the pipe at each end of the pipe, at least one of said pairs of chain sprockets being arranged to be operated by a motor, said chain sprockets carrying endless chains running at either side wall of the pipe, to which chains are attached cleaning elements moving with the chains and oriented in the widthwise direction of the pipe, said elements having a width substantially equal to the width of the pipe.
- a second preferred embodiment of the apparatus of the invention is characterized in that the cleaning elements are chain scrapers mounted between the chains at a distance from each other, which chain scrapers clean the pipe wall as the chains are moving and which carry the detached impurities back into the device producing the gas.
- a further preferred embodiment of the apparatus of the invention is characterized in that some of the chain scrapers have been arranged to clean the upper and lower surfaces of the pipe and some to clean the lateral surfaces of the pipe.
- Fig. 1 presents a sectional side view of a gas pipe provided with an apparatus according to the invention.
- Fig. 2 presents a sectional top view of a gas pipe provided with an apparatus according to the invention.
- Fig. 3 presents a cross-section of a gas pipe provided with an apparatus according to the invention.
- reference number 1 indicates the gasification space of a device producing energy gases.
- the product gas is conducted into a pipe 2, the first end of which is provided with a pair of idler sprockets 4 and the second end with a pair of driving sprockets 3.
- the second end of the gas pipe is connected to a device 6 that utilizes the product gas.
- the pipe is substantially rectangular in cross-section.
- the chains are moved by means of the driving sprocket pair 3.
- the driving sprocket pair 3 is driven by a drive machine 7, such as an electric motor. For power transmission from the drive machine, as drive shaft 11 is used.
- Chain scrapers 8 mounted on the chains 5 are cleaning elements, especially chain scrapers 8, 10, in a transverse position relative to the longitudinal direction of the pipe 2. As the chain scrapers are moving, they detach impurities accumulated on the pipe walls and carry them back into the gasification space 1. Scrapers 8 are so mounted that they clean the upper and lower surfaces of the pipe, while scrapers 10 are so mounted that they clean the lateral surfaces of the pipe. While the scrapers detach impurities from the inner walls of the pipe as they are moving, they also carry the impurities back into the gasification space.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Detergent Compositions (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
- Cleaning By Liquid Or Steam (AREA)
Claims (7)
- Verfahren zum Reinigen eines Rohres (2), das ein Verunreinigungen enthaltendes Produktgas führt, wobei das Rohr im Querschnitt im Wesentlichen rechteckig ist, wobei durch das Verfahren feste und/oder flüssige Verunreinigungen von den Wänden des Rohres (2) gelöst werden, dadurch gekennzeichnet, dass die Verunreinigungen in die das Produktgas produzierende Vorrichtung (1), wie zum Beispiel ein Generator, zurückgeführt werden.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Verunreinigungen nach Bedarf beseitigt werden.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Verunreinigungen kontinuierlich beseitig werden.
- Vorrichtung zum Reinigen eines Verunreinigungen enthaltenden Produktgasrohres, wobei das Rohr (2) im Querschnitt im Wesentlichen rechteckig ist, wobei in dem Rohr ein mechanisches System zum Reinigen der Rohrwände ausgebildet ist, dadurch gekennzeichnet, dass die während der Reinigung gelösten Verunreinigungen durch dasselbe System, das das Produktgas produziert, wie zum Beispiel ein Generator, in die Vorrichtung (1) zurückgeführt werden.
- Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass die Vorrichtung ein Paar von Kettenrädern (3, 4) aufweist, die an jedem Ende des Rohres neben den Seitenwänden des Rohres montiert sind, wobei zumindest eines der Kettenradpaare für den Antrieb durch eine Antriebsmaschine (7), wie beispielsweise ein Elektromotor, ausgebildet ist, wobei die Kettenräder Endlosketten (5) tragen, die an jeder Seitenwand des Rohres verlaufen, wobei an den Ketten Reinigungselemente (8, 10) befestigt sind, die sich mit den Ketten bewegen, wobei die Elemente in der Breitenrichtung des Rohres orientiert sind und eine Breite haben, die im Wesentlichen gleich der Breite des Rohres ist.
- Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Reinigungselemente Kettenschaber (8, 10) sind, die in einem Abstand voneinander an den Ketten (5) montiert sind, wobei die Kettenschaber die Wand des Rohres (2) reinigen, während sich die Ketten bewegen, und die gelösten Verunreinigungen in die das Gas produzierende Vorrichtung (1) zurückbefördern.
- Vorrichtung nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass einige (8) von den Kettenschabern derart angeordnet sind, dass sie die Ober- und Unterflächen des Rohres reinigen, und einige (10) derart, dass sie die Seitenflächen des Rohres reinigen.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20030900A FI118522B (fi) | 2003-06-16 | 2003-06-16 | Menetelmä epäpuhtauksia sisältävän tuotekaasuputken puhdistamiseksi sekä menetelmää soveltava laitteisto |
PCT/FI2004/000357 WO2004110658A1 (en) | 2003-06-16 | 2004-06-10 | Method for cleaning a product gas pipe which contains inpurities and an apparatus which uses the method |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1660247A1 EP1660247A1 (de) | 2006-05-31 |
EP1660247B1 true EP1660247B1 (de) | 2008-12-24 |
Family
ID=8566261
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04742100A Expired - Lifetime EP1660247B1 (de) | 2003-06-16 | 2004-06-10 | Verfahren zum reinigen eines verunreinigungen enthaltenden produktgasrohrs und das verfahren verwendende vorrichtung |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1660247B1 (de) |
AT (1) | ATE418397T1 (de) |
DE (1) | DE602004018655D1 (de) |
FI (1) | FI118522B (de) |
WO (1) | WO2004110658A1 (de) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE628502C (de) * | 1934-09-18 | 1936-04-06 | Wilhelm Von Der Linde Jr | Vorrichtung zum Reinigen von Ofenrohren |
DE1094912B (de) * | 1955-06-15 | 1960-12-15 | William Herbert Smith | Vorrichtung zur rauchgasseitigen Reinigung der Rauchrohre stehender Heizkessel |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3004278A (en) * | 1959-12-02 | 1961-10-17 | Stanley Bledsoe Corp | Pipe cleaning apparatus |
DE1409740B1 (de) * | 1961-06-16 | 1969-09-04 | Hammelmann Paul Maschf | Feuerloeschfahrzeug mit Raupenkettenfahrwerk |
US3562836A (en) * | 1968-12-30 | 1971-02-16 | Raymond M Bremner | Reaming tool |
US3604042A (en) * | 1969-10-23 | 1971-09-14 | Raymond M Bremner | Pipe-cleaning tool |
US3800358A (en) * | 1972-05-08 | 1974-04-02 | J Ryan | Duct cleaning apparatus |
US4792363A (en) * | 1988-02-01 | 1988-12-20 | Franklin Jr Smead P | Vent cleaning system |
US5244505A (en) * | 1990-07-13 | 1993-09-14 | Pipe Rehab International, Inc. | Method for cleaning pipe |
SE502348C2 (sv) * | 1991-08-19 | 1995-10-09 | Sven Eriksson | Anordning för invändig rengöring av långsträckta kanaler |
CA2354226A1 (en) * | 2001-01-31 | 2002-07-31 | Cal Holland | Robotic apparatus and method for non-destructive maintenance of intersecting conduits |
-
2003
- 2003-06-16 FI FI20030900A patent/FI118522B/fi active IP Right Grant
-
2004
- 2004-06-10 WO PCT/FI2004/000357 patent/WO2004110658A1/en active Application Filing
- 2004-06-10 DE DE602004018655T patent/DE602004018655D1/de not_active Expired - Fee Related
- 2004-06-10 EP EP04742100A patent/EP1660247B1/de not_active Expired - Lifetime
- 2004-06-10 AT AT04742100T patent/ATE418397T1/de not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE628502C (de) * | 1934-09-18 | 1936-04-06 | Wilhelm Von Der Linde Jr | Vorrichtung zum Reinigen von Ofenrohren |
DE1094912B (de) * | 1955-06-15 | 1960-12-15 | William Herbert Smith | Vorrichtung zur rauchgasseitigen Reinigung der Rauchrohre stehender Heizkessel |
Also Published As
Publication number | Publication date |
---|---|
FI20030900A (fi) | 2004-12-17 |
FI20030900A0 (fi) | 2003-06-16 |
ATE418397T1 (de) | 2009-01-15 |
FI118522B (fi) | 2007-12-14 |
WO2004110658A1 (en) | 2004-12-23 |
DE602004018655D1 (de) | 2009-02-05 |
EP1660247A1 (de) | 2006-05-31 |
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