DE102006002586A1 - Liquid carbon dioxide precooling method, involves guiding and pre-cooling liquid carbon dioxide in external wall of radiating device, where external wall of guides of carbon dioxide is provided with thermal isolation - Google Patents
Liquid carbon dioxide precooling method, involves guiding and pre-cooling liquid carbon dioxide in external wall of radiating device, where external wall of guides of carbon dioxide is provided with thermal isolation Download PDFInfo
- Publication number
- DE102006002586A1 DE102006002586A1 DE200610002586 DE102006002586A DE102006002586A1 DE 102006002586 A1 DE102006002586 A1 DE 102006002586A1 DE 200610002586 DE200610002586 DE 200610002586 DE 102006002586 A DE102006002586 A DE 102006002586A DE 102006002586 A1 DE102006002586 A1 DE 102006002586A1
- Authority
- DE
- Germany
- Prior art keywords
- carbon dioxide
- liquid carbon
- guides
- external wall
- radiating 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- Withdrawn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
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
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/08—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for polishing surfaces, e.g. smoothing a surface by making use of liquid-borne abrasives
- B24C1/086—Descaling; Removing coating films
-
- 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
Abstract
Description
Es sind bereits Strahlvorrichtungen bekannt, die flüssiges Kohlendioxid durch Entspannung während des Strahlvorgangs in feste Trockenschnee- bzw. Trockeneispartikel umwandeln und diese Partikel zu Reinigungszwecken bzw. Entschichtungszwecken auf Oberflächen strahlen. Das eingesetzte Kohlendioxid kann dabei aus einer Flasche, einem Hochdrucktank oder einem Niederdrucktank entnommen werden. Kohlendioxid aus einem (vakuum) isoliertem Niederdrucktank weist im allgemeinen 17-20 bar Druck auf bei einer Temperatur des Kohlendioxids von -17 bis -20 Grad. Die Kälte wird dabei durch ein Kühlaggregat oder durch Entspannungskälte gehalten. Kohlendioxid aus Flasche oder Hochdrucktank weisen Umgebungstemperatur auf.It are already known jet devices, the liquid carbon dioxide by relaxation while the blasting process into solid dry snow or dry ice particles convert and these particles for cleaning purposes or Entschichtungszwecken on surfaces radiate. The carbon dioxide used can come from a bottle, a high-pressure tank or a low-pressure tank are removed. Carbon dioxide from a (vacuum) isolated low-pressure tank points generally 17-20 bar pressure at at a temperature of the carbon dioxide of -17 to -20 degrees. The cold is doing by a cooling unit or by relaxation cold held. Carbon dioxide from bottle or high pressure tank have ambient temperature on.
Ziel und Zweck der Erfindung ist es, das flüssige Kohlendioxid zwecks besserer Umwandlung in Trockenschnee-/Trockeneispartikel ohne zusätzlichen Energieaufwand zu kühlen. Versuche haben gezeigt, dass bei einer zusätzlichen Kühlung des Kohlendioxids auf z. B. -50°C die Menge und Größe der Trockenschnee-/Trockeneispartikel bei ansonsten gleichbleibenden Verhältnissen steigen und somit zu besseren Reinigungsergebnissen führen. Die Kühlung soll gewährleistet werden bei einer Entnahme des Kohlendioxids aus Flasche, Hochdrucktank oder Niederdrucktank und ohne bzw. bei äußerst geringer zusätzlicher Energiezuführung. Die Kühlung erfolgt erfindungsgemäß durch die Abkälte der Strahlvorrichtung. Durch die Expansion des flüssigen Kohlendioxids bei Eingabe in die Strahlvorrichtung entsteht eine Temperatur von ca. -78 Grad an der Expansionsstelle, die auch den restlichen Körper der Strahlvorrichtung auf beispielweise -55 Grad abkühlt. Die gesamte Strahlvorrichtung soll dabei aus einem gutleitenden Material bestehen, z.B. aus Edelstahl, besser noch beispielsweise aus Aluminium oder Kupfer. Das flüssige Kohlendioxid wird zwecks Kühlung direkt an der Strahlvorrichtung vorbeigeführt und nutzt deren Abkälte. Die Führung des Kohlendioxids kann beispielsweise spiralförmig um oder in Längsnuten in der Außenwand bzw. Teilen der Außenwand der Strahlvorrichtung verlaufen und mit einer zusätzlichen Außenhülle druckdicht abgeschlossen sein.. Die Wandung der Strahlvorrichtung kann auch insgesamt als Doppelwand ausgebildet werden, durch die das flüssige Kohlendioxid geführt wird. Vorteilhaft ist eine thermische Isolierung der äußeren Wandung. Das Kohlendioxid wird anschließend direkt in einen Luftstrom bzw. in eine vorgeschaltete Expansionskammer geführt, wobei durch Expansion Trockenschnee- bzw. Trockeneispartikel entstehen. Der Durchgang in der Strahlvorrichtung für das Kohlendioxid muss dabei so bemessen sein, dass eine für den ordnungsgemäßen Betrieb ausreichende Kohlendioxidmenge zugeführt werden kann.aim and purpose of the invention is the liquid carbon dioxide for the purpose of better Transformation into dry snow / dry ice particles without additional Energy consumption to cool. Experiments have shown that with an additional cooling of the carbon dioxide on z. Eg -50 ° C the amount and size of the dry snow / dry ice particles otherwise the conditions remain constant and thus increase lead to better cleaning results. The cooling should be guaranteed be with a removal of carbon dioxide from bottle, high-pressure tank or Low pressure tank and without or with very little additional Power supply. The cooling takes place according to the invention the chilling the blasting device. By the expansion of the liquid carbon dioxide when entering the jet device creates a temperature of about -78 degrees at the expansion site, which also covers the remaining body of the blasting device Cooling down to -55 degrees, for example. The Whole blasting device should be made of a good conductive material exist, e.g. Made of stainless steel, better still, for example, made of aluminum or copper. The liquid Carbon dioxide is used for cooling passed directly to the blasting device and uses their Abkälte. The guide For example, the carbon dioxide may spiral around or in longitudinal grooves in the outer wall or parts of the outer wall of the Blasting device and finished pressure-tight with an additional outer shell The wall of the blasting device can also be considered as a whole Double wall are formed, through which the liquid carbon dioxide is passed. A thermal insulation of the outer wall is advantageous. The carbon dioxide will follow directly into an air flow or into an upstream expansion chamber guided, whereby dry snow or dry ice particles are formed by expansion. The passage in the jet device for the carbon dioxide must be there be sized so that one for proper operation sufficient amount of carbon dioxide can be supplied.
Die
Abkälte
der Strahlvorrichtung
Die
Abkälte
der Strahlvorrichtung
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610002586 DE102006002586A1 (en) | 2006-01-18 | 2006-01-18 | Liquid carbon dioxide precooling method, involves guiding and pre-cooling liquid carbon dioxide in external wall of radiating device, where external wall of guides of carbon dioxide is provided with thermal isolation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610002586 DE102006002586A1 (en) | 2006-01-18 | 2006-01-18 | Liquid carbon dioxide precooling method, involves guiding and pre-cooling liquid carbon dioxide in external wall of radiating device, where external wall of guides of carbon dioxide is provided with thermal isolation |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102006002586A1 true DE102006002586A1 (en) | 2008-01-03 |
Family
ID=38776687
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200610002586 Withdrawn DE102006002586A1 (en) | 2006-01-18 | 2006-01-18 | Liquid carbon dioxide precooling method, involves guiding and pre-cooling liquid carbon dioxide in external wall of radiating device, where external wall of guides of carbon dioxide is provided with thermal isolation |
Country Status (1)
Country | Link |
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DE (1) | DE102006002586A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9656094B2 (en) | 2013-06-14 | 2017-05-23 | Cardiothrive, Inc. | Biphasic or multiphasic pulse generator and method |
CN111975642A (en) * | 2020-08-14 | 2020-11-24 | 扬州泰坦信息科技有限公司 | Tap water pipeline rust cleaning device for smart city |
US11712575B2 (en) | 2013-06-14 | 2023-08-01 | Cardiothrive, Inc. | Wearable multiphasic cardioverter defibrillator system and method |
-
2006
- 2006-01-18 DE DE200610002586 patent/DE102006002586A1/en not_active Withdrawn
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9656094B2 (en) | 2013-06-14 | 2017-05-23 | Cardiothrive, Inc. | Biphasic or multiphasic pulse generator and method |
US11712575B2 (en) | 2013-06-14 | 2023-08-01 | Cardiothrive, Inc. | Wearable multiphasic cardioverter defibrillator system and method |
CN111975642A (en) * | 2020-08-14 | 2020-11-24 | 扬州泰坦信息科技有限公司 | Tap water pipeline rust cleaning device for smart city |
CN111975642B (en) * | 2020-08-14 | 2021-12-31 | 扬州泰坦信息科技有限公司 | Tap water pipeline rust cleaning device for smart city |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8122 | Nonbinding interest in granting licenses declared | ||
8181 | Inventor (new situation) |
Inventor name: INVENTOR IS APPLICANT |
|
8139 | Disposal/non-payment of the annual fee |