EP2596910A2 - Method and set for cleaning surfaces, especially surfaces of electrical devices being under voltage - Google Patents
Method and set for cleaning surfaces, especially surfaces of electrical devices being under voltage Download PDFInfo
- Publication number
- EP2596910A2 EP2596910A2 EP12184477.3A EP12184477A EP2596910A2 EP 2596910 A2 EP2596910 A2 EP 2596910A2 EP 12184477 A EP12184477 A EP 12184477A EP 2596910 A2 EP2596910 A2 EP 2596910A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- dry ice
- compressed air
- compressor
- cleaning
- dispensing device
- 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.)
- Withdrawn
Links
Images
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C11/00—Selection of abrasive materials or additives for abrasive blasts
-
- 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
- B24C3/322—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks for electrical components
Abstract
Description
- The object of the invention is a method and set for cleaning surfaces, especially surfaces of electrical devices being under voltage.
- From patent specification
PL 169486 - From patent specification
185360 - From the Polish patent application
P.296801 - There is also known another method for cleaning dirty surfaces using dry ice, in which traditional methods of sandblasting used for cleaning surface from contaminants, for example covered in lacquer, grease and resin, have been replaced by a method using dry ice in form of pellets. Because the pellets of dry ice change into gas and sublimate to the atmosphere immediately after streaming, everything that is left is dirt separated from the cleaned surface and the surface itself is not processed mechanically in any way. This method allows to keep the processed surface properties, reduces the amount of chemical residue and shortens the time of cleaning process. In a cleaning device there is a container from which by a funnel the pellets of dry ice are transported to an output hose. Simultaneously an air gun with compressed air creates vacuum, the effect is that the pellets of dry ice are gently sucked in and accelerated to flow velocity of approximately 300 m/s. Thanks to highly efficient nozzles the stream of pellets is "shot out" onto the surface of the cleaned material. Contact of dry ice pellets of the temperature -79°C with the contaminants makes them crush, and as a consequence of thermal shock separates it from the cleaned surface. High speed of the second stream of pellets causes complete separation a top layer of the contaminants. Effectiveness of this method is caused by thermal shock and pneumatic effect. In contrary to sandblasting, in this method, the cleaned surface of main material is not disturbed. Immediately after contact with the contaminant, dry ice changes into gas and escapes to the atmosphere. Using this method there is a possibility to remove all kinds of surface contaminant such as glue, oils, lacquers, grease, bitumen mass, dissolvent, rust, wax, printing ink, silicones, polyurethane foams, food industry contaminants, scale, seizing and many more.
- This method cannot be used for cleaning electric elements under voltage, because after contact with the cleaned surface, the cleaned surface is water-wet.
- A method of cleaning surfaces, especially surfaces of electric devices under voltage, in which, using dry ice method, a stream of compressed air is applied onto a cleaned surface at a safe distance. The method according to the invention characterises in that compressed air is dried to humidity of 0,008 - 0,0002 g/m3 and next is passed through a container with dry ice having the temperature from -70°C to -30°C and
granulation 1,5 to 5 mm. Drying of the compressed air before supplying it to a dispensing device of dry ice prevents wetting of the cleaned surface, therefore it enables electric devices under voltage to be cleaned with this method. - A set for cleaning surfaces, especially surfaces of electric devices under voltage, comprises a nozzle embedded on a lance connected with a hose with the dry ice dispensing device and a compressor producing compressed air. The set characterises in that between the compressor and the dispensing device of dry ice there is mounted a dehumidifier of the compressed air. It is connected with the compressor by a hose and another hose with the dispensing device. It is very advantageous to put the compressor and the dehumidifier in a thermally insulated container. Mounting the insulated container comprising the compressor and the dehumidifier together on a vehicle makes the set easy to remove to places needed to be cleaned, such as switch-rooms, transformer stations, production lines, buildings.
- The object of the invention is presented in an embodiment in the drawing in which
Fig. 1 shows a set for cleaning surfaces. - In an insulated container 1, shown in
Fig.1 , acompressor 2 is mounted connected by a hose 3 with adehumidifier 4 of compressed air. Mounting the container on a chassis makes a set mobile. Dried compressed air is delivered by ahose 5 to adevice 6, which contains dry ice. The device has acontrol panel 7 which controls quantity of pressure or pressure level of the compressed air and the amount of dry ice. From thedevice 6 there is ahose 8 connected with alance 9 ended with anozzle 10, from which the cleaning agents gets out. The arrows show the direction of the air and cleaning agent flow.
Claims (4)
- A method of cleaning surfaces, especially surfaces of electric devices under voltage, in which, using a dry ice method, a stream of compressed air is applied onto a cleaned surface at a safe distance, characterized in that compressed air is dried to humidity of 0,008 - 0,0002 g/m3 and then, is passed through a container with dry ice of the temperature from -70°C to -30°C and granulation from 1,5 to 5 mm.
- A set for cleaning surfaces, especially surface of electric devices under voltage, comprising a nozzle embedded on a lance connected by a house with a dispensing device of a dry ice and compressed air supplied by a compressor, characterized in that between the compressor (2) and the dispensing device (6) of dry ice there is mounted a dehumidifier (4) of compressed air connected by a hose (3) with the compressor (2) and by a second hose (5) with the dispensing device (6) of dry ice.
- The set for cleaning surfaces according to claim 2, characterized in that the compressor (2) and the dehumidifier (4) are embedded in a thermally insulated container (1).
- The set for cleaning surfaces according to claim 2, characterized in that the insulated container (1) is mounted on a vehicle.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL396603A PL396603A1 (en) | 2011-10-11 | 2011-10-11 | Method and a set for cleaning surfaces, especially electrical equipment under voltage |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2596910A2 true EP2596910A2 (en) | 2013-05-29 |
EP2596910A3 EP2596910A3 (en) | 2014-09-03 |
Family
ID=47225923
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12184477.3A Withdrawn EP2596910A3 (en) | 2011-10-11 | 2012-09-14 | Method and set for cleaning surfaces, especially surfaces of electrical devices being under voltage |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2596910A3 (en) |
PL (1) | PL396603A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2525400A1 (en) * | 2013-06-21 | 2014-12-22 | Proyectos Y Montajes Ingemont, S.A. | Procedure and equipment for cleaning electrical installations in tension. (Machine-translation by Google Translate, not legally binding) |
FR3066416A1 (en) * | 2017-05-16 | 2018-11-23 | Jacques Rigaill | JET CLEANING MACHINE COMPRISING AN APPLICATION LANCE EQUIPPED WITH AN IMPROVED LEMON TIP |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
PL296801A1 (en) | 1992-11-30 | 1994-06-13 | Telsidd Polsko Belgijska Sp Z | Method of cleaning, in particular switch houses when alive and apparatus therefor |
PL169486B1 (en) | 1992-11-19 | 1996-07-31 | Inst Energetyki | Method of and apparatus for cleaning indoor power substations when alive |
PL185360B1 (en) | 1996-11-05 | 2003-04-30 | Inst Energetyki | Method of cleaning with liquid cleaning agent power distribution indoor and outdoor switchgear equipment when alive |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60141474A (en) * | 1983-12-28 | 1985-07-26 | Power Reactor & Nuclear Fuel Dev Corp | Projection of ice particle |
-
2011
- 2011-10-11 PL PL396603A patent/PL396603A1/en not_active Application Discontinuation
-
2012
- 2012-09-14 EP EP12184477.3A patent/EP2596910A3/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
PL169486B1 (en) | 1992-11-19 | 1996-07-31 | Inst Energetyki | Method of and apparatus for cleaning indoor power substations when alive |
PL296801A1 (en) | 1992-11-30 | 1994-06-13 | Telsidd Polsko Belgijska Sp Z | Method of cleaning, in particular switch houses when alive and apparatus therefor |
PL185360B1 (en) | 1996-11-05 | 2003-04-30 | Inst Energetyki | Method of cleaning with liquid cleaning agent power distribution indoor and outdoor switchgear equipment when alive |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2525400A1 (en) * | 2013-06-21 | 2014-12-22 | Proyectos Y Montajes Ingemont, S.A. | Procedure and equipment for cleaning electrical installations in tension. (Machine-translation by Google Translate, not legally binding) |
FR3066416A1 (en) * | 2017-05-16 | 2018-11-23 | Jacques Rigaill | JET CLEANING MACHINE COMPRISING AN APPLICATION LANCE EQUIPPED WITH AN IMPROVED LEMON TIP |
Also Published As
Publication number | Publication date |
---|---|
EP2596910A3 (en) | 2014-09-03 |
PL396603A1 (en) | 2013-04-15 |
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RIC1 | Information provided on ipc code assigned before grant |
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Effective date: 20150304 |