DE102008027253A1 - Dry ice blasting device for removing incrust from surface, has supply line extending to flow passage and open into injection passage that extends with axis of flow passage and opens into expansion chamber - Google Patents
Dry ice blasting device for removing incrust from surface, has supply line extending to flow passage and open into injection passage that extends with axis of flow passage and opens into expansion chamber Download PDFInfo
- Publication number
- DE102008027253A1 DE102008027253A1 DE200810027253 DE102008027253A DE102008027253A1 DE 102008027253 A1 DE102008027253 A1 DE 102008027253A1 DE 200810027253 DE200810027253 DE 200810027253 DE 102008027253 A DE102008027253 A DE 102008027253A DE 102008027253 A1 DE102008027253 A1 DE 102008027253A1
- Authority
- DE
- Germany
- Prior art keywords
- flow channel
- flow passage
- blasting device
- supply line
- opens
- 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- Withdrawn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
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
- B24C5/00—Devices or accessories for generating abrasive blasts
- B24C5/02—Blast guns, e.g. for generating high velocity abrasive fluid jets for cutting materials
- B24C5/04—Nozzles therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
Description
Die Erfindung betrifft eine Strahlvorrichtung mit einem Strömungskanal für ein Trägergas, der am stromabwärtigen Ende eine Strahldüse bildet, und einer Zuleitung für flüssiges CO2, die in einen koaxial in dem Strömungskanal aufgenommenen Entspannungsraum mündet, sowie ein Strahlverfahren, in dem diese Strahlvorrichtung verwendet wird.The invention relates to a jet device with a flow channel for a carrier gas, which forms a jet nozzle at the downstream end, and a supply line for liquid CO 2 , which opens into a relaxation chamber accommodated coaxially in the flow channel, as well as a blasting method in which this jet device is used.
Aus
Dadurch, daß ein Teil des flüssigen CO2 im Entspannungsraum entspannt wird, entsteht Verdunstungskälte, so daß ein anderer Teil des CO2 zu festem Trockenschnee kondensiert, der dann als Strahlmittel vom Trägergas mitgeführt und durch die Strahldüse beschleunigt wird. Mit einer solchen Vorrichtung können dann festsitzende Verkrustungen auf Oberflächen wirksam und zugleich schonend entfernt werden. Die Reinigungswirkung ist dabei maßgeblich von der Anzahl, Größe und Geschwindigkeit der CO2-Partikel abhängig.Characterized in that a portion of the liquid CO 2 is expanded in the expansion space, evaporative cooling, so that another part of the CO 2 condenses into solid dry snow, which is then carried as a blasting agent from the carrier gas and accelerated by the jet. With such a device can then be fixed encrustations on surfaces effectively and at the same time gently removed. The cleaning effect is significantly dependent on the number, size and speed of the CO 2 particles.
Die Erfindung mit den in den unabhängigen Ansprüchen angegebenen Merkmalen löst die Aufgabe, mit einer kleinbauenden Vorrichtung und verringertem Verbrauch an Trägergas eine hohe Ausbeute an festem CO2 und eine hohe Reinigungswirkung durch effiziente Koagulation und Beschleunigung des festen CO2 zu erreichen.The invention with the features specified in the independent claims solves the problem of achieving a high yield of solid CO 2 and a high cleaning effect by efficient coagulation and acceleration of the solid CO 2 with a small-sized device and reduced consumption of carrier gas.
Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben.advantageous Embodiments of the invention are in the subclaims specified.
Im folgenden wird ein Ausführungsbeispiel anhand der Zeichnung naher erläutert.in the Following is an embodiment with reference to the drawing explained in more detail.
Es zeigen:It demonstrate:
Ein
Strahlrohr
Ein
Teil des geradlinigen Strömungskanals
Im
gezeigten Beispiel ist nur eine einzige Entspannungsdüse
Für
die Querschnittsfläche A der Entspannungsdüse
Stromabwärts
des Rohres
Im
gezeigten Beispiel ragt der Verdrängungskörper
Der
Verdrängungskörper
Aus
Wesentliche
Vorteile der hier gezeigten Strahlvorrichtung bestehen darin, daß durch
den niedrigen Druck des Trägergases ein geringer Verbrauch
an Trägergas erreicht wird, der beispielsweise weniger
als 0,1 m3/min betragen kann, in Vergleich zu
wenigstens 0,8 m3/min bei herkömmlichen
Trockenschneestrahlanlagen. Durch die Gestaltung und Anordnung der
Entspannungsdüse
In
dem hier gezeigten Beispiel ist der Strömungskanal
Das
Strahlrohr
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - EP 1501655 [0002] - EP 1501655 [0002]
Claims (8)
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810027253 DE102008027253A1 (en) | 2008-06-06 | 2008-06-06 | Dry ice blasting device for removing incrust from surface, has supply line extending to flow passage and open into injection passage that extends with axis of flow passage and opens into expansion chamber |
CN2008801201072A CN101896314B (en) | 2007-12-10 | 2008-12-09 | Dry ice blasting device |
BRPI0821587-1A BRPI0821587A2 (en) | 2007-12-10 | 2008-12-09 | Dry Ice Blasting Device |
PCT/EP2008/010449 WO2009074294A1 (en) | 2007-12-10 | 2008-12-09 | Dry ice blasting device |
JP2010536383A JP5276672B2 (en) | 2007-12-10 | 2008-12-09 | Dry ice spraying equipment |
PL08858637T PL2219822T3 (en) | 2007-12-10 | 2008-12-09 | Dry ice blasting device |
ES08858637T ES2420974T3 (en) | 2007-12-10 | 2008-12-09 | Dry ice projection device |
EP08858637.5A EP2219822B1 (en) | 2007-12-10 | 2008-12-09 | Dry ice blasting device |
US12/744,562 US8491354B2 (en) | 2007-12-10 | 2008-12-09 | Dry ice blasting device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810027253 DE102008027253A1 (en) | 2008-06-06 | 2008-06-06 | Dry ice blasting device for removing incrust from surface, has supply line extending to flow passage and open into injection passage that extends with axis of flow passage and opens into expansion chamber |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102008027253A1 true DE102008027253A1 (en) | 2009-12-10 |
Family
ID=41268843
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200810027253 Withdrawn DE102008027253A1 (en) | 2007-12-10 | 2008-06-06 | Dry ice blasting device for removing incrust from surface, has supply line extending to flow passage and open into injection passage that extends with axis of flow passage and opens into expansion chamber |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102008027253A1 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1501655A1 (en) | 2002-09-20 | 2005-02-02 | KIPP, Jens-Werner | Method and device for jet cleaning |
-
2008
- 2008-06-06 DE DE200810027253 patent/DE102008027253A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1501655A1 (en) | 2002-09-20 | 2005-02-02 | KIPP, Jens-Werner | Method and device for jet cleaning |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee | ||
R409 | Internal rectification of the legal status completed | ||
R082 | Change of representative |
Representative=s name: WICKORD, WIRO, M.SC. (USA) DIPL.-ING. DR.-ING., DE Representative=s name: PRUEFER & PARTNER GBR, DE Representative=s name: TARVENKORN & WICKORD PATENTANWAELTE PARTNERSCH, DE |
|
R409 | Internal rectification of the legal status completed | ||
R409 | Internal rectification of the legal status completed | ||
R082 | Change of representative |
Representative=s name: WICKORD, WIRO, M.SC. (USA) DIPL.-ING. DR.-ING., DE Representative=s name: TARVENKORN & WICKORD PATENTANWAELTE PARTNERSCH, DE |
|
R082 | Change of representative |
Representative=s name: WICKORD, WIRO, M.SC. (USA) DIPL.-ING. DR.-ING., DE Representative=s name: TARVENKORN & WICKORD PATENTANWAELTE PARTNERSCH, DE |
|
R005 | Application deemed withdrawn due to failure to request examination | ||
R082 | Change of representative |
Representative=s name: TARVENKORN & WICKORD PATENTANWAELTE PARTNERSCH, DE |