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 PDF

Info

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Withdrawn
Application number
DE200610002586
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE200610002586 priority Critical patent/DE102006002586A1/en
Publication of DE102006002586A1 publication Critical patent/DE102006002586A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24CABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C1/00Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
    • B24C1/003Methods 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24CABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C1/00Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
    • B24C1/08Methods 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
    • B24C1/086Descaling; Removing coating films
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24CABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C5/00Devices or accessories for generating abrasive blasts
    • B24C5/02Blast guns, e.g. for generating high velocity abrasive fluid jets for cutting materials
    • B24C5/04Nozzles therefor

Abstract

The method involves cooling liquid carbon dioxide in coils (2) or guides. The guides are attached to a radiating device (1). The guides are attached with an outer sleeve in a pressure-sealed manner. The liquid carbon dioxide is guided and pre-cooled in a double-walled external wall (4) of the radiating device, where parts of the radiating device are made of good conducting material such as stainless steel, copper and aluminum. An external wall of the guides of the carbon dioxide is provided with a thermal isolation (5). An independent claim is also included for a device for precooling liquid carbon dioxide before feeding into a radiating device.

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.

1 zeigt eine Strahlvorrichtung 1, der durch die ringsum in der Außenhülle 4 verlaufenden Windungen 2 das für den Betrieb der Vorrichtung erforderliche Kohlendioxid zugeführt wird, wobei die Abkälte der Strahlvorrichtung 1, das die Windungen 2 durchströmende flüssige Kohlendioxid abkühlt, sobald die Strahlvorrichtung in Betrieb genommen wird. Die thermische Isolierung 5 schützt die Konstruktion gegen unerwünschte Erwärmung durch die Umgebungsluft. 1 shows a blasting device 1 by the round in the outer shell 4 running turns 2 the required for the operation of the device carbon dioxide is supplied, wherein the cooling of the jet device 1 that the turns 2 flowing liquid carbon dioxide cools as soon as the jet device is put into operation. The thermal insulation 5 protects the construction against unwanted heating by the ambient air.

2 zeigt eine Strahlvorrichtung 1, der das für den Betrieb der Vorrichtung erforderliche flüssige Kohlendioxid durch an der Außenhülle 4 verlaufende Windungen zugeführt wird. 2 shows a blasting device 1 , which required for the operation of the device liquid carbon dioxide through on the outer shell 4 running turns is supplied.

Die Abkälte der Strahlvorrichtung 1 kühlt das die Windungen 2 durchströmende flüssige Kohlendioxid ab, sobald die Strahlvorrichtung in Betrieb genommen wird. Die thermische Isolierung 5 schützt die Konstruktion gegen unerwünschte Erwärmung durch die Umgebungsluft.The cooling of the blasting device 1 that cools the turns 2 flowing liquid carbon dioxide as soon as the jet device is put into operation. The thermal insulation 5 protects the construction against unwanted heating by the ambient air.

3 zeigt eine Strahlvorrichtung 1, der das für den Betrieb der Vorrichtung erforderliche fKohlendioxid durch die doppelte Außenhülle 4 zugeführt wird. 3 shows a blasting device 1 which requires the carbon dioxide required for the operation of the device through the double outer shell 4 is supplied.

Die Abkälte der Strahlvorrichtung 1 kühlt das die Windungen 2 durchströmende flüssige Kohlendioxid ab, sobald die Strahlvorrichtung in Betrieb genommen wird. Die thermische Isolierung 5 schützt die Konstruktion gegen unerwünschte Erwärmung durch die Umgebungsluft.The cooling of the blasting device 1 that cools the turns 2 flowing liquid carbon dioxide as soon as the jet device is put into operation. The thermal insulation 5 protects the construction against unwanted heating by the ambient air.

4 zeigt eine Strahlvorrichtung 1, der das für den Betrieb der Vorrichtung erforderliche flüssige Kohlendioxid durch längs zu den Flächen der Außenhülle 4 angebrachten Führungen 3 der Strahlvorrichtung 1 zugeführt wird. Die Abkälte der Strahlvorrichtung 1 kühlt das die Windungen 2 durchströmende flüssige Kohlendioxid ab, sobald die Strahlvorrichtung in Betrieb genommen wird. Die thermische Isolierung 5 schützt die Konstruktion gegen unerwünschte Erwärmung durch die Umgebungsluft. 4 shows a blasting device 1 which requires the liquid carbon dioxide required for the operation of the device through longitudinally to the surfaces of the outer shell 4 attached guides 3 the blasting device 1 is supplied. The cooling of the blasting device 1 that cools the turns 2 flowing liquid carbon dioxide as soon as the jet device is put into operation. The thermal insulation 5 protects the construction against unwanted heating by the ambient air.

Claims (6)

Verfahren zur Vorkühlung von flüssigem Kohlendioxid vor Eingabe in eine Strahlvorrichtung 1 durch Nutzung der während des Betriebs der Strahlvorrichtung entstehenden AbkälteA method of precooling liquid carbon dioxide prior to entering a jet device 1 by using the resulting during operation of the blasting device cooling Vorrichtung nach Anspruch 1 zur Vorkühlung von flüssigem Kohlendioxid vor Eingabe in eine Strahlvorrichtung 1, dadurch gekennzeichnet, dass das flüssige Kohlendioxid in Windungen 2 oder parallel zur Strömungsrichtung verlaufenden direkt an der Strahlvorrichtung angebrachten Führungen 3 vorgekühlt wird, die mit einer Außenhülle 4 druckdicht abgeschlossen sindApparatus according to claim 1 for pre-cooling of liquid carbon dioxide before entering a jet device 1 , characterized in that the liquid carbon dioxide in turns 2 or parallel to the flow direction mounted directly on the blasting device mounted guides 3 Pre-cooled, with an outer shell 4 pressure-tight are closed Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das flüssige Kohlendioxid in einer direkt an der Strahlvorrichtung 1 angebrachten Rohrschlange geführt und vorgekühlt wirdApparatus according to claim 1, characterized in that the liquid carbon dioxide in a directly on the jet device 1 attached coil is guided and pre-cooled Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das flüssige Kohlendioxid in einer doppelwandigen Außenwand 4 der Strahlvorrichtung 1 geführt und vorgekühlt wirdApparatus according to claim 1, characterized in that the liquid carbon dioxide in a double-walled outer wall 4 the blasting device 1 guided and pre-cooled Vorrichtung nach Anspruch 1-4, dadurch gekennzeichnet, dass alle zur Vorkühlung des flüssigen Kohlendioxids kälteabgebenden Teile der Strahlvorrichtung 1 aus gut leitendem Material bestehen wie beispielsweise Edelstahl, Kupfer, AluminiumApparatus according to claim 1-4, characterized in that all the pre-cooling of the liquid carbon dioxide cold-emitting parts of the jet device 1 made of highly conductive material such as stainless steel, copper, aluminum Vorrichtung nach Anspruch 1-4, dadurch gekennzeichnet, dass die Außenwand 4 der Führungen des Kohlendioxids mit einer thermischen Isolierung 5 versehen sind.Device according to claims 1-4, characterized in that the outer wall 4 the guides of carbon dioxide with a thermal insulation 5 are provided.
DE200610002586 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 Withdrawn DE102006002586A1 (en)

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
DE (1) DE102006002586A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
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

Cited By (4)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
DE2422103C2 (en) Cryosurgical device
DE102006002586A1 (en) 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
EP2863103B1 (en) Device and method for supercooling carbon dioxide
DE102016105334A1 (en) Method for cryogenic cooling
DE102010032089A1 (en) Method and device for cooling a liquid
EP3144615B1 (en) Device and method for manufacturing dry ice
DE2453127A1 (en) Flow speed control of liquid through pipe - refrigerant applied to alter viscosity of fluid
DE102015009351B4 (en) Method and device for producing dry ice
DE1925416B2 (en) Cooling section for wire rod or rod material
DE102012008593A1 (en) Method and device for cooling products
DE1141436B (en) Device for cooling thermoplastic molded parts
DE3726960A1 (en) METHOD FOR PRODUCING A COMPRESSED GAS CONTAINER FROM AUSTENITIC STEELS BY CRYFORMING
DE10160902A1 (en) Highpressure cleaning by deepcooled gas has gas source and highpressure pump and iced particles admixer and cleaning and directing nozzle to spray jet effectively onto metal glass plastics or ceramics objects.
DE367005C (en) Device to prevent gas pressure reducing valves from freezing
DE102021005135B4 (en) Method for reducing the temperature and/or maintaining low temperatures of an object using a liquid gas, in particular using liquid carbon dioxide, and a device suitable for this
DE1001298B (en) Method and device for the expansion of compressed gases
DE3511726A1 (en) Device for shutting off gas pipes
AT525677B1 (en) Device and method for producing slush LNG
DE1047370B (en) Device for cooling gas traps in vacuum systems
WO2022268244A1 (en) Method for lowering the temperature of and/or maintaining low temperatures of an object by means of a liquid gas, especially by means of liquid carbon dioxide, and apparatus suitable for this purpose
DE102019123723A1 (en) Sublimation cooler and cryogenic cooling process
AT119953B (en) Process for the production of carbonic acid ice.
DE3008355A1 (en) Refrigerator for aircraft galleys - using dry ice vapours passed through capillary nozzle and venturi tubes
DE2354189A1 (en) Ozonise with tubular gas discharge chamber - cooled by evaporating coolant at low flow speed which avoids turbulence
AT107949B (en) Device for cooling and preserving goods.

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