WO1999046085A1 - A method of cleaning the inside surface of ducts - Google Patents
A method of cleaning the inside surface of ducts Download PDFInfo
- Publication number
- WO1999046085A1 WO1999046085A1 PCT/GB1999/000632 GB9900632W WO9946085A1 WO 1999046085 A1 WO1999046085 A1 WO 1999046085A1 GB 9900632 W GB9900632 W GB 9900632W WO 9946085 A1 WO9946085 A1 WO 9946085A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- nozzle
- inside surface
- duct
- cleaning
- trolley
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/32—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks
- B24C3/325—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks for internal surfaces, e.g. of tubes
-
- 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
- B08B7/02—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by distortion, beating, or vibration of the surface to be cleaned
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/003—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods using material which dissolves or changes phase after the treatment, e.g. ice, CO2
Definitions
- the present invention relates to a method of cleaning the inside surface of a kitchen extraction duct or other grease duct which often become coated with a layer of grease, which is very difficult to remove.
- An object of the present invention is to provide a method of cleaning the inside surface of a kitchen extraction duct or other grease duct which enables grease to be removed from the inside surface thereof without the need for cutting-in and installing the large numbers of access doors required for manual cleaning.
- the present invention provides a method of cleaning the inside surface of a kitchen extraction duct or other grease duct as claimed in Claim 1.
- Fig. 1 is a sectional side view of a kitchen extraction duct illustrating a cleaning method according to the invention
- Fig. 2 is a section taken along line A-A of Fig. 1 , and
- Fig. 3 is a part-secional diagrammatic view of an extraction unit for use with the extraction duct of Fig. 1.
- a kitchen extraction duct 1 has an inside surface 2 and a flexible outlet duct 3.
- the outlet duct 3 leads via an access door or panel 4 to an extraction unit 5 having a plenum 6, a filter 7, and an extraction fan 8, as shown in Fig. 3.
- Apparatus for cleaning the inside surface 2 of the extraction duct 1 comprises a cleaning trolley 9 having a nozzle 10, a guide rod 11 and a hose 12.
- the trolley 9 is propelled along the duct 1 by means of the guide rod 11 , which is controlled remotely from the surface being cleaned, eg from outside the extraction duct 1.
- the trolley 9 could be controlled by other remote means such as radio control, or it could be self-driven.
- the trolley 9 could be equipped with a motor and be pre-programmed to travel slowly along the extraction duct 1 during cleaning, or to stop periodically to carry out cleaning.
- Solid carbon dioxide is fed under pressure to the nozzle 10 via the hose 12, which leads from a solid carbon dioxide supply (not shown). This supply is preferably in the form of solid carbon dioxide granules. Solid carbon dioxide is then applied under pressure to the inside surface 2 of the extraction duct 1 through the nozzle 10. The thermal shock and the abrasive action caused by the blasting of the solid carbon dioxide through the nozzle 10 against the inside surface 2 of the extraction duct 1 hardens any grease on the surface 2 and dislodges it therefrom. The hardened grease flakes/particles are then more easily extracted, eg by suction, along the extraction duct 1 towards the outlet duct 3 which leads to the extraction unit 5 where they are collected in the filter 7, which can be emptied or exchanged periodically.
- a distance D which is the distance between an expulsion end 13 of the nozzle 10 and the inside surface 2 of the extraction duct 1 , is preferably as short as possible (about 15 cm or less).
- the nozzle 10 is rotatable so as to facilitate cleaning of all areas of the inside surface 2 of the extraction duct 1 and adjustably mounted on a support, eg on adjustable plates 14, so that the distance D may be maintained within the above recommended limit as the nozzle 10 is rotated.
- the nozzle 10 may be interchangeable to permit cleaning of ducts of different diameters and cross sections.
- the nozzle 10 could be circular with peripheral openings through which the dry ice would be blasted under pressure. To ensure cleaning of all the surfaces 2, such a circular nozzle should also be rotatable. Different diameter circular nozzles could be supplied depending on the diameter/cross section of the extraction duct 1.
- the above-described cleaning method is particularly useful in cleaning kitchen extraction ducts in restaurants or fast-food outlets, or any other ducts in which other sticky deposits occur.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Duct Arrangements (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000535483A JP2002505955A (en) | 1998-03-09 | 1999-03-03 | How to clean the inner surface of the duct |
DK99939176T DK1054752T3 (en) | 1998-03-09 | 1999-03-03 | Method for cleaning the inner surface of ducts |
AU32636/99A AU751665B2 (en) | 1998-03-09 | 1999-03-03 | A method of cleaning the inside surface of ducts |
US09/623,671 US6402854B1 (en) | 1998-03-09 | 1999-03-03 | Method of cleaning the inside surface of ducts |
EP99939176A EP1054752B1 (en) | 1998-03-09 | 1999-03-03 | A method of cleaning the inside surface of ducts |
CA002322869A CA2322869C (en) | 1998-03-09 | 1999-03-03 | A method of cleaning the inside surface of ducts |
AT99939176T ATE208684T1 (en) | 1998-03-09 | 1999-03-03 | METHOD FOR CLEANING THE INNER WALL OF PIPES |
DE69900464T DE69900464T2 (en) | 1998-03-09 | 1999-03-03 | METHOD FOR CLEANING THE INTERNAL WALL OF PIPELINES |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9805047.9 | 1998-03-09 | ||
GB9805047A GB2335154B (en) | 1998-03-09 | 1998-03-09 | A method of cleaning the inside surface of ducts |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999046085A1 true WO1999046085A1 (en) | 1999-09-16 |
Family
ID=10828283
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB1999/000632 WO1999046085A1 (en) | 1998-03-09 | 1999-03-03 | A method of cleaning the inside surface of ducts |
Country Status (11)
Country | Link |
---|---|
US (1) | US6402854B1 (en) |
EP (1) | EP1054752B1 (en) |
JP (1) | JP2002505955A (en) |
AT (1) | ATE208684T1 (en) |
AU (1) | AU751665B2 (en) |
CA (1) | CA2322869C (en) |
DE (1) | DE69900464T2 (en) |
DK (1) | DK1054752T3 (en) |
ES (1) | ES2165239T3 (en) |
GB (1) | GB2335154B (en) |
WO (1) | WO1999046085A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9101967B2 (en) | 2009-07-24 | 2015-08-11 | Neovision, S.R.O. | Robot for cleaning and inspection of conduits and its control unit |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6357459B1 (en) * | 2000-08-04 | 2002-03-19 | Grease Duct Technologies, Llc | Grease exhaust cleaning system |
DE10121931A1 (en) * | 2001-05-05 | 2002-11-07 | Linde Ag | Device for cleaning systems |
SE0201900D0 (en) * | 2002-06-16 | 2002-06-16 | Sinterkil Ab | New method and device |
US20050156065A1 (en) * | 2002-06-16 | 2005-07-21 | Bertil Eliasson | Cleaning device and method |
ES2221567B1 (en) * | 2003-05-22 | 2006-04-01 | Tecnologia Aplicada Als Conducters, S.L. | DEVICE FOR CLEANING INDUSTRIAL FIREPLACES. |
DE102006016314B3 (en) * | 2006-04-06 | 2007-09-20 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Jet spray tool for the production of a jet of carbon dioxide snow for dry cleaning of tube cavity, has hose-shaped shaft, carbon dioxide jet nozzle and inlet line for carbon dioxide, which is attached to the nozzle and runs along the shaft |
CN101036977B (en) * | 2007-05-21 | 2010-10-13 | 张景远 | Electric ballasting rust remover on the inner wall of pipeline |
DE102007039540A1 (en) * | 2007-08-21 | 2009-02-26 | Jens Wilkowski | Climatic and fat exhaust air channel system cleaning method, involves closing dry blasting agent by air flow from inner walls of channel system, and hurling dry blasting agent by unevenly stochastic sharp-edged granulate particles |
CN101816904B (en) * | 2010-05-19 | 2012-05-09 | 马铭傈 | Movable air stirring system for preventing and clearing away sediment of phosphoric acid slag in tank |
US8603262B2 (en) | 2010-07-30 | 2013-12-10 | Roseanne Lambert | Cleaning apparatus and method of cleaning a structure |
US20130263890A1 (en) * | 2012-03-20 | 2013-10-10 | Mid-American Gunite, Inc. | Cleaning of radioactive contamination using dry ice |
JP2015000387A (en) * | 2013-06-17 | 2015-01-05 | エム・テイ・システム株式会社 | Cleaning system of inside of air conditioner duct |
US9636721B2 (en) | 2014-04-16 | 2017-05-02 | Quickdraft, Inc. | Method and clean-in-place system for conveying tubes |
US10967408B2 (en) * | 2014-09-19 | 2021-04-06 | Wesco Distribution, Inc. | Pressurized conduit rodder |
JP6193845B2 (en) * | 2014-12-24 | 2017-09-06 | 三菱電機プラントエンジニアリング株式会社 | Rotating electric machine cleaning device |
JP7075633B2 (en) * | 2017-12-06 | 2022-05-26 | 埼玉県 | Mobile duct cleaning device |
CN109550724B (en) * | 2018-09-28 | 2021-04-20 | 武汉船用机械有限责任公司 | Shaft inner hole cleaning device |
FI20235011A1 (en) | 2023-01-04 | 2024-07-05 | Kouvolan Kuivajaeae Oy | A modular robot for maintenance of conduits |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5108512A (en) * | 1991-09-16 | 1992-04-28 | Hemlock Semiconductor Corporation | Cleaning of CVD reactor used in the production of polycrystalline silicon by impacting with carbon dioxide pellets |
DE19601814A1 (en) * | 1995-06-06 | 1996-12-12 | Kipp Jens Werner | Process for cleaning surfaces using an abrasive and robot to carry out the process |
DE19535557A1 (en) * | 1995-09-25 | 1997-03-27 | Air Liquide Gmbh | Plant for cleaning inner wall of mould by dry ice |
EP0795360A1 (en) * | 1996-03-12 | 1997-09-17 | S.E.P.S. (S.A.) | Method and device for cleaning ducts |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU588025A1 (en) * | 1976-01-04 | 1978-01-15 | Предприятие П/Я А-7179 | Method of cleaning internal surfaces of hollow articles |
JPH0711597B2 (en) * | 1989-03-24 | 1995-02-08 | 動力炉・核燃料開発事業団 | Removal method of powder adhered and accumulated in pneumatic tube |
AU4302893A (en) * | 1992-06-01 | 1993-12-30 | Ice Blast International Ltd. | Particle blasting utilizing crystalline ice |
CH686410A5 (en) * | 1994-03-17 | 1996-03-29 | Iws Ag | Device for cleaning Lueftungskanaelen. |
DE4420579A1 (en) * | 1994-06-03 | 1995-12-07 | Meyer & John Gmbh & Co | Method for cleaning pipelines |
-
1998
- 1998-03-09 GB GB9805047A patent/GB2335154B/en not_active Expired - Fee Related
-
1999
- 1999-03-03 AT AT99939176T patent/ATE208684T1/en not_active IP Right Cessation
- 1999-03-03 US US09/623,671 patent/US6402854B1/en not_active Expired - Fee Related
- 1999-03-03 AU AU32636/99A patent/AU751665B2/en not_active Ceased
- 1999-03-03 ES ES99939176T patent/ES2165239T3/en not_active Expired - Lifetime
- 1999-03-03 EP EP99939176A patent/EP1054752B1/en not_active Expired - Lifetime
- 1999-03-03 DE DE69900464T patent/DE69900464T2/en not_active Expired - Fee Related
- 1999-03-03 WO PCT/GB1999/000632 patent/WO1999046085A1/en active IP Right Grant
- 1999-03-03 JP JP2000535483A patent/JP2002505955A/en not_active Withdrawn
- 1999-03-03 CA CA002322869A patent/CA2322869C/en not_active Expired - Fee Related
- 1999-03-03 DK DK99939176T patent/DK1054752T3/en active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5108512A (en) * | 1991-09-16 | 1992-04-28 | Hemlock Semiconductor Corporation | Cleaning of CVD reactor used in the production of polycrystalline silicon by impacting with carbon dioxide pellets |
DE19601814A1 (en) * | 1995-06-06 | 1996-12-12 | Kipp Jens Werner | Process for cleaning surfaces using an abrasive and robot to carry out the process |
DE19535557A1 (en) * | 1995-09-25 | 1997-03-27 | Air Liquide Gmbh | Plant for cleaning inner wall of mould by dry ice |
EP0795360A1 (en) * | 1996-03-12 | 1997-09-17 | S.E.P.S. (S.A.) | Method and device for cleaning ducts |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9101967B2 (en) | 2009-07-24 | 2015-08-11 | Neovision, S.R.O. | Robot for cleaning and inspection of conduits and its control unit |
Also Published As
Publication number | Publication date |
---|---|
ES2165239T3 (en) | 2002-03-01 |
GB2335154A (en) | 1999-09-15 |
CA2322869C (en) | 2004-10-26 |
DK1054752T3 (en) | 2001-12-27 |
GB2335154B (en) | 2002-10-30 |
DE69900464T2 (en) | 2002-05-02 |
CA2322869A1 (en) | 1999-09-16 |
GB9805047D0 (en) | 1998-05-06 |
AU3263699A (en) | 1999-09-27 |
EP1054752A1 (en) | 2000-11-29 |
JP2002505955A (en) | 2002-02-26 |
DE69900464D1 (en) | 2001-12-20 |
US6402854B1 (en) | 2002-06-11 |
EP1054752B1 (en) | 2001-11-14 |
ATE208684T1 (en) | 2001-11-15 |
AU751665B2 (en) | 2002-08-22 |
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