EP4511192A1 - Reinigungsgerät - Google Patents
ReinigungsgerätInfo
- Publication number
- EP4511192A1 EP4511192A1 EP23720097.7A EP23720097A EP4511192A1 EP 4511192 A1 EP4511192 A1 EP 4511192A1 EP 23720097 A EP23720097 A EP 23720097A EP 4511192 A1 EP4511192 A1 EP 4511192A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cleaning device
- heat exchanger
- cooling channel
- cooling
- exchanger housing
- 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- Withdrawn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
- 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
- B08B7/0064—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by temperature changes
- B08B7/0092—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by temperature changes by cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/50—Carbon dioxide
- C01B32/55—Solidifying
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
- F25D3/12—Devices using other cold materials; Devices using cold-storage bodies using solidified gases, e.g. carbon-dioxide snow
- F25D3/125—Movable containers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
- F28D7/024—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
Definitions
- the present invention relates to a cleaning device for irradiating surfaces to be treated with a mixture stream of a compressed gas and CO 2 pellets, comprising a device for producing CO 2 pellets from liquid or gaseous CO 2 , the device having a compression device for compressing of CO 2 snow to form the CO 2 pellets, the compression device comprising an expansion device for producing CO 2 snow by expanding liquid or pressurized CO 2 , the expansion device comprising a expansion chamber with an expansion chamber inlet and wherein the cleaning device comprises a CO 2 connection line which is fluidly connected to the expansion chamber inlet for supplying the liquid or gaseous CO 2 to the expansion device.
- a cleaning device of the type described above is known, for example, from WO 2015/079022 Al. With this cleaning device it is possible to produce CO 2 pellets, so-called dry ice pellets, from liquid CO 2 .
- a problem with such known cleaning devices is, in particular, the limited yield of CO 2 pellets that can be produced from a given amount of liquid CO 2 .
- the cleaning device comprises a cooling device for cooling the CO 2 connecting line.
- the development proposed according to the invention makes it possible in particular to improve the efficiency of the cleaning device, that is to say in particular to increase the yield of CO 2 pellets from a predetermined amount of liquid CO 2 .
- the input product of the cleaning device i.e. gaseous or liquid CO 2 under pressure, can be cooled by the cooling device.
- the colder the gaseous or liquid CO 2 the more efficiently it can be used in the subsequent process. This means that more CO 2 snow can be formed, the colder the gaseous or liquid CO 2 used for this purpose is.
- the cooling device here can in particular be an active cooling device which cools the CO 2 connection line.
- the cooling device can be operated with electricity.
- the cooling device is designed in the form of a passive cooling device.
- the passive cooling device can be designed in the form of a countercurrent cooling device.
- a cool exhaust gas from the cleaning device for example cool CO 2
- the countercurrent cooling device direct contact between the medium to be cooled, i.e. the liquid or gaseous CO 2 on the one hand, and the cooling medium is prevented.
- any other sufficiently cool gas or liquid flow can be used as a cooling medium.
- the cooling device makes it possible, in particular, to pre-cool liquid CO 2 from bottles that are not preconditioned in order to generate as much CO 2 snow as possible when the liquid or gaseous CO 2 is expanded.
- the cleaning device can be designed in a simple manner if the cooling device includes a heat exchanger and if the CO 2 connection line extends through the heat exchanger.
- This configuration makes it possible, in particular, to cool the CO 2 connection line directly, specifically in the area in which it extends through the heat exchanger. It can then be cooled directly by a fluid flowing through the heat exchanger, i.e. a liquid or gas stream which has a correspondingly low temperature.
- the heat exchanger comprises a cooling channel with a cooling channel inlet and a cooling channel outlet and if the CO 2 connection line extends through the cooling channel.
- a connecting line section of the CO 2 connecting line can extend through the cooling channel.
- the heat exchanger has an input side and an output side, if the cooling channel inlet is arranged or designed on the input side and if the cooling channel outlet is arranged or designed on the output side. If the input side and output side are spatially separated from one another, the cooling channel inlet and the cooling channel outlet can also be spatially separated from one another in a simple manner. In this way, an optimal flow of cooling fluid through the heat exchanger can be achieved.
- the connecting line section preferably extends from the output side through the cooling channel to the input side or vice versa.
- connection line section has a connection line section length
- cooling device has a cooling device length which corresponds to a distance between the input side and the output side, and if a ratio between the connection line section length and the cooling device length is in a range of is about 5:1 to about 25:1.
- the compression device includes a CO 2 exhaust gas outlet and if the CO 2 exhaust gas outlet is fluidly connected to the cooling channel inlet.
- This configuration makes it possible, in particular, to use the gaseous CO 2 emerging from the pre-compression device, which has a significantly lower temperature compared to the ambient temperature of the cleaning device, as a cooling medium for cooling the CO 2 connection line, in particular the connection line section thereof.
- Sublimated, i.e. gaseous, CO 2 that is produced in the compression device is then not only released into the environment of the cleaning device, but is also initially used to pre-cool the CO 2 connecting line.
- the cooling device can therefore be used in particular as a passive cooling device. No additional energy is required to cool the CO 2 connection line. Rather, a waste product when using the cleaning device, namely cooled gaseous CO 2 , is used as a cooling fluid.
- the cleaning device includes a CO 2 cleaning device exhaust gas outlet and if the cooling channel outlet is fluidly connected to the CO 2 cleaning device exhaust gas outlet.
- This configuration makes it possible, in particular, for the gaseous CO 2 to flow through the cooling device in a defined manner from or from the cleaning device, for example to an environment thereof.
- the CO 2 cleaning device exhaust gas outlet can also be connected to a hose, for example to extract the gaseous CO 2 produced during the production process of CO 2 pellets from a cleaning room in which a surface to be treated is treated with a mixture of a compressed gas and CO 2 pellets are applied to derive. In this way, a proportion of CO 2 in the ambient air of the cleaning device can be controlled in a defined manner.
- the cooling device comprises at least one heat-conducting element, which is in thermal connection with the connecting line section.
- the at least one heat-conducting element serves in particular the purpose of enlarging a surface area of the connecting line section in order to achieve improved heat exchange in the area of the cooling device.
- the cooling device can be designed in a simple manner if the at least one heat-conducting element is designed in the form of a heat-conducting rib projecting from the connecting line section and/or in the form of a fabric, knitted or wool body.
- Heat-conducting ribs or the fabric, knitted and wool bodies described can be flowed around by the cooling medium, for example cold gaseous CO 2 , and cooled in this way. They are suitable for dissipating heat from the connection line section so that the cooling fluid flow that flows through the cooling device can absorb this heat.
- the at least one heat-conducting element is formed from a heat-conducting body material which has a thermal conductivity of at least approximately 30 W/(m K).
- the thermal conductivity can be at least approximately 100 W/(m K).
- Heat-conducting elements that are made of a metallic material are particularly suitable for this.
- zinc has a thermal conductivity of around 110 W/(m K)
- aluminum of around 230 W/(m K)
- Copper has a thermal conductivity in the range of approximately 240 to 380 W/(m K).
- the cooling device can be designed easily and cost-effectively if the at least one heat-conducting element is made of a metallic material.
- metallic materials especially pure metals or metal alloys such as copper alloys or aluminum alloys, have a significantly higher thermal conductivity.
- connection line section is designed to be helical.
- connection line section can be designed in the form of a helical screw.
- connecting line section can be designed in the form of a tube which is wound helically.
- the connecting line section is made of a metallic material.
- a cooling fluid flowing past the connecting line section can absorb heat from the connecting line section and cool it in this way.
- a particularly compact design of the cleaning device can be achieved in particular by the heat exchanger comprising a heat exchanger housing and the heat exchanger housing defining the cooling channel.
- the flow of a cooling medium can thus be achieved in a simple manner, in particular by passing it through the heat exchanger housing.
- the heat exchanger housing defines a heat exchanger housing longitudinal axis and is cylindrical or essentially cylindrical or cuboid or essentially cuboid.
- the cooling device can be made particularly compact and cooling of the CO 2 connection line can be optimized.
- the cooling channel inlet and/or the cooling channel outlet are arranged or designed eccentrically on the heat exchanger housing with respect to the heat exchanger housing longitudinal axis.
- the cooling channel inlet can be arranged eccentrically or coaxially to the longitudinal axis of the heat exchanger housing.
- the CO 2 connection line can be guided on the input side with an eccentrically arranged cooling channel inlet coaxially with the longitudinal axis of the heat exchanger housing or also eccentrically with respect to this from the heat exchanger housing.
- the cooling channel outlet can be arranged on the output side eccentrically or coaxially to the longitudinal axis of the heat exchanger housing.
- the CO 2 connection line can be guided coaxially to the heat exchanger housing's longitudinal axis or also eccentrically relative to this on the output side into the heat exchanger housing. In this way, in particular, optimal cooling of the connecting line section of the CO 2 connecting line in the heat exchanger housing can be achieved using the countercurrent principle.
- the cooling channel inlet defines a cooling channel inlet longitudinal axis
- the cooling channel outlet defines a cooling channel outlet longitudinal axis and that the cooling channel inlet longitudinal axis and / or the cooling channel outlet longitudinal axis run parallel to the heat exchanger housing longitudinal axis.
- This configuration makes it possible, in particular, to guide the cooling fluid into the heat exchanger housing in a defined manner.
- a flow of the cooling fluid can be optimized so that heat exchange preferably takes place in the heat exchanger housing and not beforehand, i.e. outside of it.
- the cooling channel inlet longitudinal axis defines the cooling channel outlet longitudinal axis.
- the cooling channel inlet and the cooling channel outlet can therefore be designed or arranged coaxially with one another on the heat exchanger. So In particular, an optimized flow of the cooling fluid through the heat exchanger can be achieved.
- the heat exchanger housing defines a heat exchanger housing length and a heat exchanger housing diameter and if a ratio between the heat exchanger housing length and the heat exchanger housing diameter is in a range from approximately 5:4 to approximately 5:1. In particular, the ratio can be in a range from about 3:2 to about 3:1.
- a heat exchanger is particularly compact in its structure and can easily be retrofitted, for example, to cleaning devices that are already on the market.
- the heat exchanger housing has a heat exchanger housing wall that delimits the cooling channel and if the heat exchanger housing wall is thermally insulated. In particular, it can be prevented that the cooling medium excessively cools the surroundings of the heat exchanger. In other words, a cooling effect of the cooling fluid for the CO 2 connection line can be improved.
- the heat exchanger housing wall is made of a heat exchanger housing wall material which has a thermal conductivity of at most approximately 1 W/(m K).
- the thermal conductivity can be at most approximately 0.1 W/(m K).
- the heat exchanger housing wall can be made of a plastic, for example based on polyethylene or polystyrene. Polyurethane can also be used as a heat exchanger housing wall material.
- the heat exchanger housing wall can optionally also include an insulating layer made of an insulating material suitable for this purpose, which preferably has a thermal conductivity that does not exceed the specified limit values.
- Possible suitable insulation materials are, in particular, mineral wool, sheep's wool, cellulose, flax or wood fibers.
- the cleaning device comprises a CO 2 connection which is or can be connected to a CO 2 source and that the CO 2 connection is fluidly connected to the CO 2 connection line.
- a cleaning device can be connected, for example, to a CO 2 bottle that contains liquid CO 2 . This can then be fed to the expansion device via the CO 2 connecting line.
- the expansion device comprises a switching device for opening and closing a fluid connection between the CO 2 connection and the expansion chamber inlet and if the switching device is arranged or designed between the cooling device and the expansion chamber inlet.
- a switching device for opening and closing a fluid connection between the CO 2 connection and the expansion chamber inlet and if the switching device is arranged or designed between the cooling device and the expansion chamber inlet.
- Figure 1 a schematic, partially broken overall view of an exemplary embodiment of a cleaning device
- Figure 2 a perspective, partially broken overall view of the cleaning device from Figure 1 without an outer housing
- Figure 3 a further perspective view of the arrangement from Figure 2;
- Figure 4 an enlarged, partially broken view of a cooling device of the cleaning device
- Figure 5 a sectional view along line 5-5 in Figure 4;
- Figure 6 a sectional view along line 6-6 in Figure 5;
- Figure 7 a schematic representation of the structure of a further exemplary embodiment of a cleaning device.
- FIG. 7 An exemplary embodiment of a cleaning device, designated overall by reference number 10, for irradiating surfaces to be treated with a mixture stream of a compressed gas, for example anhydrous or essentially anhydrous, i.e. dry, compressed air, and CO 2 pellets, is shown schematically in Figure 7 .
- the cleaning device 10 includes a device 12 for producing CO 2 pellets from liquid or gaseous CO 2 .
- the device 12 includes a compaction device 14 for compacting CO 2 snow to form the CO 2 pellets.
- the compression device 14 includes an expansion device 16 for producing CO 2 snow by expanding liquid or pressurized CO 2 .
- the expansion device 16 comprises an expansion chamber 18 with an expansion chamber inlet 20.
- the cleaning device 10 further comprises a CO 2 connecting line 22, which is fluidly connected to the expansion chamber inlet 20, for supplying the liquid or gaseous CO 2 to the expansion device 16.
- the cleaning device 10 includes a cooling device 24 for cooling the CO 2 connection line 22.
- the CO 2 connection line 22 can be connected or is connected to a CO 2 source 26.
- the CO 2 source can in particular be a CO 2 bottle 28 with liquid CO 2 or a CO 2 compressed gas source.
- the cooling device 24 is optionally in the form of an active cooling device 24 formed, to which energy must be supplied for cooling the CO 2 connection line 22, for example electrical energy, or in the form of a passive cooling device 24, which is explained in more detail below in connection with the exemplary embodiment shown in FIGS. 1 to 6.
- Figures 1 to 6 show a further exemplary embodiment of a cleaning device 10 for irradiating surfaces to be treated with a mixture stream of a compressed gas and CO 2 pellets.
- This exemplary embodiment of the cleaning device 10 also includes a device 12 for producing CO 2 pellets from liquid or gaseous CO 2 .
- the device 12 includes a compaction device 14 for compacting CO 2 snow to form the CO 2 pellets.
- the compression device 14 includes an expansion device 16 for producing CO 2 snow by expanding liquid or pressurized CO 2 .
- the relaxation device 16 comprises a relaxation chamber 18 in the form of a tube 30 bent at 90°.
- the expansion chamber 18 comprises an expansion chamber inlet 20, on which an expansion nozzle (not shown in the figures) is arranged, through which liquid or pressurized gaseous CO 2 can be introduced into the expansion chamber 18.
- the expansion chamber 18 forms part of a pre-compression device 32, in which CO 2 snow is pre-compacted and then fed to the main compression device 36, which is designed in the form of a gear compressor 34.
- the main compression device 36 is followed by a pellet transfer device 38.
- the pellet transfer device 38 comprises a compressed gas inlet 40, which is fluidly connected to a compressed gas connection 44 via a connecting line 42.
- a valve 46 is arranged on the connecting line 42 in order to Connecting line 42 can be optionally opened or closed in order to enable or interrupt a compressed gas flow.
- the pellet transfer device 38 also has a mixture flow outlet 48, which is fluidly connected to a mixture flow connection 52 via a connecting line 50.
- the mixture flow connection 52 can be connected via a hose to a jet nozzle, which can be guided by a user to clean or irradiate the surfaces to be treated with the mixture flow.
- both the hose and the jet nozzle are not shown in the figures.
- the cleaning device 10 further comprises a CO 2 cleaning device exhaust gas outlet 56, which is fluidly connected to the CO 2 exhaust gas outlet 54, specifically via a CO 2 exhaust gas line 58.
- the cleaning device 10 further comprises a mobile frame 60 on which all components of the cleaning device 10 are arranged.
- the cleaning device 10 can thus be moved by a user in a simple and convenient manner.
- a platform 62 is formed on the frame 60, on which a CO 2 bottle 28 can be positioned as shown schematically in FIGS. 1 to 3.
- the CO 2 bottle 28 forms a CO 2 source 26.
- the cleaning device 10 includes a CO 2 connection 64, which is led out of a housing 66 of the cleaning device 10.
- the CO 2 connection 64 can be connected to a connection 70 of the CO 2 bottle 28 via a connecting line 68. In this way, the CO 2 connection 64 is fluidly connected to the CO 2 connection line 22.
- the cooling device 24 is designed in the form of a passive cooling device. It is implemented in the form of a countercurrent cooling device 72.
- the cooling device 24 includes a heat exchanger 74 through which the CO 2 connection line 22 extends.
- the heat exchanger 74 defines or includes a cooling channel 76 with a cooling channel inlet 78 and a cooling channel outlet 80.
- the heat exchanger 74 defines an input side 84 and an output side 86, in such a way that the cooling channel inlet 78 is arranged or formed on the input side 84 and that the cooling channel outlet 80 is arranged or formed on the output side 86.
- connection line section 82 extends between the output side 86 and the input side 84 through the cooling channel 76.
- the connecting line section 82 is helical, as shown schematically in particular in FIGS. 5 and 6. It has the shape of a screw 88.
- the connecting line section 82 is tubular and made of a metallic material.
- the heat exchanger 74 includes a heat exchanger housing 90, which limits and thus defines the cooling channel 76.
- the heat exchanger housing 90 is in the exemplary embodiment shown in Figures 1 to 6, it is cylindrical or essentially cylindrical and defines a heat exchanger housing longitudinal axis 92.
- both the cooling channel inlet 78 and the cooling channel outlet 80 are arranged or designed eccentrically on the heat exchanger housing 90 with respect to the heat exchanger housing longitudinal axis 92.
- the cooling channel inlet 78 defines a cooling channel inlet longitudinal axis 94.
- the cooling channel outlet 80 defines a cooling channel outlet longitudinal axis 96.
- the cooling channel inlet longitudinal axis 94 and the cooling channel outlet longitudinal axis 96 run parallel to the heat exchanger housing longitudinal axis 92, but laterally offset from it. In other words, the heat exchanger housing longitudinal axis 92 does not coincide with the other two axes.
- the cooling channel inlet longitudinal axis defines the cooling channel outlet longitudinal axis 96.
- the two axes are therefore designed to be aligned with one another.
- the heat exchanger housing 90 includes a tubular housing wall 98 running concentrically to the heat exchanger housing longitudinal axis 92, as well as an end wall 100 defining the input side 84 and an end wall 102 defining the output side 86.
- the cooling channel inlet 78 is designed in the form of a bore 106 in the end wall 100 provided with an internal thread 104.
- the cooling channel outlet 80 is in the form of a bore 110 in the end wall 102 provided with an internal thread 108.
- the cooling channel inlet 78 includes a hose connection piece 112, which includes an external thread section 114 corresponding to the internal thread 104.
- the hose connection piece 112 is screwed into the hole 106.
- An end section of the hose connection piece 112 pointing away from the end wall 100 is connected to the tubular CO 2 exhaust gas line 58, which is directly fluidly connected to the CO 2 exhaust gas outlet.
- Another hose connection piece 116 is screwed to the bore 110 with an external thread section 118 corresponding to the internal thread 108.
- An end section of the hose connection piece 116 pointing away from the end wall 102 is connected to a further section of the CO 2 exhaust gas line 58, which is in direct fluid connection with the CO 2 cleaning device exhaust gas outlet 56.
- the heat exchanger housing 90 defines a heat exchanger housing length 120 and a heat exchanger housing diameter 122.
- a ratio between the heat exchanger housing length 120 and the heat exchanger housing diameter 122 is in a range from approximately 5:4 to approximately 5:1 , more specifically in a range from about 3:2 to about 3:1.
- the heat exchanger housing 90 defines a heat exchanger housing wall 124 delimiting the cooling channel 76.
- the heat exchanger housing wall 124 is formed by the housing wall 98 and the two end walls 100 and 102.
- the heat exchanger housing wall 124 is optionally thermally insulated. It is optionally formed from a heat exchanger housing wall material which has a thermal conductivity of a maximum of approximately 1 W/(m K). In preferred embodiments, the thermal conductivity of the heat exchanger housing wall material is a maximum of approximately 0.1 W/(m K).
- the connecting line section 82 has a connecting line section length 126. The connecting line section length 126 is defined by a length of the connecting line section 82 between the end walls 100 and 102, namely by a center line 128 of the connecting line section 82.
- the cooling device 24 defines a cooling device length 130, which corresponds to a distance 132 between the input side 84 and the output side 86.
- the helical design of the connecting line section 82 results in a ratio between the connecting line section length 126 and the cooling device length 130 in a range of approximately 5: 1 to approximately 25: 1. In this way, a surface area of the connecting line section 82 is increased in comparison to a configuration which the connecting line section would extend parallel to the heat exchanger housing longitudinal axis 92 through the cooling channel 76.
- the cooling device 24 optionally comprises one or more heat-conducting elements 134, which or which are in thermal connection with the connecting line section 82.
- a heat-conducting element 134 in the form of a woven, knitted or wool body 136 is shown in FIG.
- heat-conducting elements 134 in the form of heat-conducting ribs 138 are shown by way of example. These also increase a surface of the connecting line section 82 in the cooling channel 76 in order to achieve heat exchange between the media flowing through the cooling channel 76 on the one hand and the connecting line section 82 on the other hand.
- the heat-conducting elements 134 are optionally made of a metallic material.
- the heat-conducting elements 134 are formed from a heat-conducting body material which has a thermal conductivity of at least approximately 30 W/(m K).
- the thermal conductivity of the thermally conductive body material is at least approximately 100 W/(m K).
- the expansion device 16 comprises a switching device 140 for opening and closing a fluid connection between the CO 2 connection 64 and the expansion chamber inlet 20.
- the switching device 140 includes an electromagnetic valve 142, which is arranged in the CO 2 connection line 22 in order to selectively open and close it.
- the switching device 140 is arranged or designed between the cooling device 24 and the expansion chamber inlet 20.
- the cooling device 24 allows the efficiency in the production of CO 2 pellets with the compression device 14 to be significantly increased, namely by over 25% compared to a cleaning device 10 which does not have a heat exchanger 74.
- the CO 2 bottle 28 therefore has to be replaced less frequently.
- costs when operating the cleaning device 10 can be significantly reduced and the environment can be protected.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022109526.6A DE102022109526A1 (de) | 2022-04-20 | 2022-04-20 | Reinigungsgerät |
| PCT/EP2023/059992 WO2023203020A1 (de) | 2022-04-20 | 2023-04-18 | Reinigungsgerät |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4511192A1 true EP4511192A1 (de) | 2025-02-26 |
Family
ID=86271354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23720097.7A Withdrawn EP4511192A1 (de) | 2022-04-20 | 2023-04-18 | Reinigungsgerät |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20250041914A1 (de) |
| EP (1) | EP4511192A1 (de) |
| DE (1) | DE102022109526A1 (de) |
| WO (1) | WO2023203020A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102023128897A1 (de) | 2023-10-20 | 2025-04-24 | Alfred Kärcher SE & Co. KG | Reinigungsgerät |
| DE102024117736A1 (de) * | 2024-06-24 | 2025-12-24 | E. Zoller GmbH & Co. KG Einstell- und Messgeräte | Schrumpfspann-Fluidkühlvorrichtung, Schrumpfspannstation und Verfahren zu einer Kühlung von Schrumpfspannfuttern |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3618330A (en) | 1968-09-12 | 1971-11-09 | Chemetron Corp | Solidified gas filter |
| US3632271A (en) | 1969-07-18 | 1972-01-04 | Lewis Tyree Jr | Apparatus for making solid carbon dioxide |
| DE10261013A1 (de) | 2002-12-24 | 2004-07-08 | Jens Werner Kipp | Strahlverfahren und-vorrichtung |
| DE102004018133B3 (de) | 2004-04-08 | 2005-08-25 | Frenzel-Bau Gmbh & Co. Kg | Anordnung zur Erzeugung eines Trockeneispartikel-Strahls sowie deren Verwendung |
| DE102004053239A1 (de) | 2004-10-29 | 2006-05-04 | Technische Universität Dresden | Verfahren und Vorrichtung zur Erzeugung von festen Partikeln aus Flüssigkeiten, insbesondere aus flüssigem Kohlendioxid |
| DE102005054246C5 (de) | 2005-11-15 | 2011-08-18 | MESSER Group GmbH, 65843 | Vorrichtung und Verfahren zum Bestrahlen einer Oberfläche mit Trockeneis-Teilchen |
| DE102007046791B3 (de) | 2007-09-29 | 2008-06-19 | Messer Group Gmbh | Vorrichtung zum Erzeugen eines Strahls aus Trockeneis-Teilchen |
| DE102007052390B4 (de) * | 2007-10-31 | 2021-01-28 | Air Liquide Deutschland Gmbh | Verfahren und Vorrichtung zur Reinigung von Oberflächen |
| DE102011116228A1 (de) * | 2011-10-17 | 2013-04-18 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Strahlschneidvorrichtung |
| DE102013113275A1 (de) | 2013-11-29 | 2015-06-03 | Alfred Kärcher Gmbh & Co. Kg | Vorrichtung zur Herstellung von CO2-Pellets aus CO2-Schnee und Reinigungsgerät |
| DE102015009351B4 (de) | 2015-07-17 | 2021-02-04 | Messer Group Gmbh | Verfahren und Vorrichtung zum Herstellen von Trockeneis |
-
2022
- 2022-04-20 DE DE102022109526.6A patent/DE102022109526A1/de active Pending
-
2023
- 2023-04-18 WO PCT/EP2023/059992 patent/WO2023203020A1/de not_active Ceased
- 2023-04-18 EP EP23720097.7A patent/EP4511192A1/de not_active Withdrawn
-
2024
- 2024-10-17 US US18/918,999 patent/US20250041914A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023203020A1 (de) | 2023-10-26 |
| US20250041914A1 (en) | 2025-02-06 |
| DE102022109526A1 (de) | 2023-10-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP4511192A1 (de) | Reinigungsgerät | |
| DE102007052390B4 (de) | Verfahren und Vorrichtung zur Reinigung von Oberflächen | |
| WO2017194175A1 (de) | Vorrichtung zur herstellung von co2-pellets aus co2-schnee und reinigungsgerät | |
| EP0487002A2 (de) | Vorrichtung zur Klimatisierung des Innenraums von Kraftfahrzeugen | |
| DE10015773A1 (de) | Probenhalter für wasserhaltige Präparate und Verfahren zu dessen Verwendung sowie Hochdruckgefriereinrichtung für den Probenhalter | |
| EP0857561B1 (de) | Verfahren und Vorrichtung zur Kühlung extrudierter Hohlprofile | |
| DE2455779A1 (de) | Verfahren und vorrichtung zum abkuehlen von oberflaechen an extrudierten profilen aus kunststoff | |
| DE102004018133B3 (de) | Anordnung zur Erzeugung eines Trockeneispartikel-Strahls sowie deren Verwendung | |
| EP0287590A1 (de) | Wärmetauscher zum kühlen von kraftstoff. | |
| DE2349118A1 (de) | Verfahren und vorrichtung zur kuehlung von wasser | |
| DE102016110062B3 (de) | Reaktor für ein Speichermaterial, welches unter Absorption bzw. Desorption eines Reaktionsgases Wärme aufnimmt bzw. abgibt, bevorzugt für ein Metallhydrid, Verfahren zu dessen Herstellung und Verwendung sowie Befüllvorrichtung | |
| WO2019096432A1 (de) | Vorrichtung zur herstellung von co2-pellets aus co2-schnee und reinigungsgerät | |
| EP0620766B1 (de) | Hochdruckreinigungsgerät | |
| CH657446A5 (de) | Kaelteerzeugungsverfahren und anlage zu dessen durchfuehrung. | |
| EP1645821B1 (de) | Lanzenkopf für eine Schneelanze sowie Düsenanordnung | |
| WO2025083178A1 (de) | Reinigungsgerät | |
| DE102019102271A1 (de) | Reaktor zur Aufnahme eines Speichermaterials und Verfahren zur Herstellung desselben | |
| EP2026023A1 (de) | Vorrichtung und Verfahren zum Verflüssigen von Prozessmedien | |
| EP3569953B1 (de) | Kältekreislaufvorrichtung und verfahren zum betrieb einer kältekreislaufvorrichtung mit einem hybridverdampfer | |
| AT510064B1 (de) | Kühlvorrichtung | |
| DE102017113261A1 (de) | Werkzeugschaft und Werkzeugmodul mit integrierter Kaltgaserzeugung | |
| DE102013014313B4 (de) | Vorrichtung zur Herstellung von Spritzguss-Teilen und Heizkopf zur Verwendung in einer solchen Vorrichtung | |
| EP0355519A2 (de) | Verfahren und Vorrichtung zur Kühlung eines mit Flüssigkeit gefüllten Behälters | |
| EP2282335A1 (de) | Kühlvorrichtung und Verfahren | |
| DE10351834B4 (de) | Verfahren zur Herstellung von Clathraten und Vorrichtung zur Durchführung des Verfahrens |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20241017 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20250528 |