EP2480378A2 - Dispositif de distribution de jets de fluide cryogénique avec joint en polymère à coefficient de dilatation donné - Google Patents
Dispositif de distribution de jets de fluide cryogénique avec joint en polymère à coefficient de dilatation donnéInfo
- Publication number
- EP2480378A2 EP2480378A2 EP10773118A EP10773118A EP2480378A2 EP 2480378 A2 EP2480378 A2 EP 2480378A2 EP 10773118 A EP10773118 A EP 10773118A EP 10773118 A EP10773118 A EP 10773118A EP 2480378 A2 EP2480378 A2 EP 2480378A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- cryogenic
- fluid
- tool
- cryogenic fluid
- seal
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/04—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
- B05B13/0421—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation with rotating spray heads
-
- 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
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/02—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other
- B24C3/04—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other stationary
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
- B05B15/65—Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits
Definitions
- the invention relates to a device and a method for working by jets of cryogenic fluid under high pressure, in particular surface treatment, pickling or peeling, comprising a rotary joint with a given coefficient of expansion and coefficient of friction.
- cryogenic jets under very high pressure as proposed for example by US-A-7,310,955 and US-A-7,316,363 to perform surface treatments of coated or uncoated materials, in particular stripping, crushing or the like, or even cuttings, such as metals, concrete, wood, polymers, ceramics and plastics or any other type of material.
- This type of process is intended to be implemented particularly in environments where there are drastic environmental constraints, such as in nuclear and chemical environments.
- the jetting or jets of liquid nitrogen at a pressure of 1000 to 4000 bar and at a cryogenic temperature of, for example, between -100 and -200 ° C., typically about -140 and -160 ° C., are distributed by a nozzle-carrying tool. which can be fixed or animated with a rotary or oscillating movement, and which is generally supplied with liquid nitrogen by a cryogenic fluid supply line.
- the pipe and the tool are given a rotary movement about the axis of the pipe, by means of a rotary drive system with pinions or belts driven by a engine.
- the dynamic seal of the rotary system is usually provided by a rotating cylindrical seal, typically Tivar®, arranged around the pipe, traversed longitudinally by a bronze piece and surrounded by a solid piece of stainless steel.
- Tivar® is a very high molecular weight polyethylene.
- the problem to be solved is therefore to increase the reliability of a cryogenic fluid distribution system, in particular of liquid nitrogen, as described above, by proposing a distribution system with fluid distribution tool with seal rotative improved to overcome the aforementioned drawbacks.
- the solution is a device for dispensing at least one cryogenic fluid jet at high pressure comprising:
- a moving tool comprising one or more fluid distribution nozzles for dispensing one or more jets of cryogenic and high pressure fluid, and
- a supply line of the moving tool in cryogenic and high pressure fluid comprising a fixed upstream portion and a movable downstream portion connected to the moving tool, said fixed upstream portion and mobile downstream portion being fluidically connected to one another; to the other by means of a rotating system comprising a rotary joint, characterized in that the rotary joint comprises a polymeric material having a coefficient of thermal expansion between 10.10 "6 and 160.10 ⁇ 6 / K.
- the device of the invention may comprise one or more of the following characteristics:
- the rotary joint comprises a polymer material having a coefficient of thermal expansion of between 20 ⁇ 10 -6 and 130 ⁇ 10 -6 / K.
- the rotary joint comprises a polymer material having a coefficient of friction of less than 0.50.
- the seal is cylindrical.
- the seal is maintained within the rotary system by one or more metal parts.
- the seal is made of a polymer material chosen from PTFE, PCTFE, PAI and
- the invention also relates to an installation for dispensing at least one cryogenic fluid jet under high pressure comprising a device according to the invention supplied with cryogenic fluid by a source of cryogenic temperature fluid and comprising a rotating tool equipped with one or more nozzles for dispensing said cryogenic fluid under pressure.
- the invention also relates to a method for surface treatment, pickling or peeling, a high-pressure cryogenic fluid jet material, in which an installation or a device according to the invention is implemented. invention.
- the cryogenic fluid dispensed by the nozzle (s) of the tool is at a pressure of at least 500 bar, preferably between 2000 and 4000 bar.
- the fluid dispensed by the nozzle or nozzles of the tool is at a temperature below -140 ° C, preferably between about -140 and -180 ° C.
- FIG. 1 is a diagrammatic view of a part of a device for dispensing cryogenic and high pressure fluid jets equipped with a seal according to the invention
- FIG. 2 is a schematic enlarged view of the seal according to the invention of FIG. 1;
- FIG. 3 is a general block diagram of a cryogenic and high pressure fluid jet distribution installation incorporating a device; FIG. according to Figure 1,
- Figures 4A and 4B are diagrams of the nozzle holder tool of the device of Figure 1.
- Figure 1 is a diagrammatic (side view) view of the portion of a cryogenic temperature and high pressure fluid jet apparatus 6 showing the seal of the rotary system 1 and the rotary tool 3 More specifically, the gasket 20 of cylindrical shape is arranged at the intersection of the portions 2, 5 of pipeline carrying the liquid nitrogen (LN 2 ) and is traversed longitudinally by one or more bronze pieces 22, 23 and is surrounded by a solid piece of stainless steel 21.
- the seal 20 provides dynamic sealing of the rotary system 1 since the upstream portion 5 is fixed, while the downstream portion 2 is rotatable.
- the seal 20 is a cylindrical rotating seal polymer material having a coefficient of thermal expansion between 10.10 "6 160.10 and” 6 / K, preferably between about 20.10 "and 130.10 6" 6 / K. These values are valid and assumed to be constant for the considered temperature range.
- the coefficients of linear thermal expansion are obtained in accordance with DIN 50044.
- Table II below gives the coefficients of thermal expansion, on the one hand, of Tivar® and, on the other hand, of several commercially available polymers which can be used as a seal in the system of FIG. 1 and thus advantageously replace Tivar® seals conventionally used in a cryogenic medium.
- PTFE Polytetrafluoroethylene
- PCTFE Polymonochlorotrifluoroethylene
- PAI Polyamide imide
- PPS Polyphenylene sulfide
- UHMW PE Very high molecular weight polyethylene.
- Table II The values in Table II are valid and assumed to be constant for the temperature range considered. The coefficients of linear thermal expansion are obtained in accordance with DIN 50044.
- PTFE, PCTFE, PAI and PPS have low friction coefficients of the same order as Tivar ®.
- the polymers PS and PAI are the materials which are best suited to manufacture the rotary joint according to the invention.
- the other two polymers are also suitable although less preferred.
- the reliability of the cryogenic fluid distribution system can be increased, that is to say, avoid or minimize the progressive appearance of a clearance between the seal 20 and the metal parts 21, 22, 23 of the rotary system 1, and thus avoid or minimize nitrogen leakage at said seal 20.
- FIG. 3 shows an installation equipped with a device provided with a seal according to the invention, for example usable for carrying out a surface etching by jets 6 of cryogenic liquid.
- This installation consists of a storage tank 1 1, such as a tank, of liquid nitrogen (hereinafter referred to as LN 2 ) which feeds, via a supply line 16 of liquid nitrogen under low pressure, it is at around 3 to 6 bar and at a temperature of the order of -180 ° C., a compression device 12, with compressor and internal upstream heat exchanger allowing an ultra high pressure (UHP) setting of the 'liquid nitrogen.
- LN 2 liquid nitrogen
- UHP ultra high pressure
- LN 2 at the first pressure (UHP) is then conveyed via a conveyor line 17, to an external downstream heat exchanger 13 where the LN2 UHP undergoes cooling with liquid nitrogen at atmospheric pressure (at 9), to typically obtain UHP liquid nitrogen.
- LN 2 at a pressure (UHP) typically greater than 1000 bar, generally between 2000 bar and 5000 bar, advantageously between about 3000 and 4000 bar, and at a temperature below -140 ° C., typically between about -140 ° C and -180 ° C, for example of the order of about -150 to -160 ° C, which is sent via the portions of lines 5, 2, to the rotary pickling tool 4 or the like provided with dispensing nozzles 18 delivering jets 6 of liquid nitrogen UHP.
- UHP pressure
- the high-capacity fixed or mobile tank 11 such as a truck tank or a storage tank of several thousand liters of liquid nitrogen, is generally located outside the buildings, that is to say at the outdoors.
- the tank 11 is connected to the installation by means of insulated pipes comprising one or more control valves.
- the LN 2 conveying between the various elements of the system is also done via insulated pipes.
- the overall gas flow is approximately 20 l / min or 15 m 3 / min.
- the compression device 12, the external exchanger 13 and especially the tool 4 are in principle located in one or more buildings.
- a tool 4 for etching a surface for example, a tool 4 is used equipped with nozzles 18 fed with LN 2 UHP (in 2) which is preferably rotated so as to obtain jets 6 LN 2 UHP which are used to strip the surface to be treated.
- LN 2 UHP in 2
- the rotation of the downstream portion 2 of the pipe and the tool 3 is obtained by means of a conventional drive system with motor and sprockets or drive belts.
- a heat treatment device equipped with a seal according to the present invention is applicable in any operation or heat treatment process requiring the implementation of a rotation or oscillation of cryogenic fluid jets, in particular surface treatment, pickling or of a material, such as metals, concrete, stone, plastics, wood, ceramics ...
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0956537A FR2950271B1 (fr) | 2009-09-23 | 2009-09-23 | Dispositif de distribution de jets de fluide cryogenique avec joint en polymere a coefficient de dilatation donne |
PCT/FR2010/051909 WO2011036374A2 (fr) | 2009-09-23 | 2010-09-15 | Dispositif de distribution de jets de fluide cryogénique avec joint en polymère à coefficient de dilatation donné |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2480378A2 true EP2480378A2 (fr) | 2012-08-01 |
EP2480378B1 EP2480378B1 (fr) | 2014-02-26 |
Family
ID=41611297
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10773118.4A Not-in-force EP2480378B1 (fr) | 2009-09-23 | 2010-09-15 | Dispositif de distribution de jets de fluide cryogénique avec joint en polymère à coefficient de dilatation donné |
Country Status (6)
Country | Link |
---|---|
US (1) | US20120171934A1 (fr) |
EP (1) | EP2480378B1 (fr) |
JP (1) | JP2013505148A (fr) |
CN (1) | CN102497958A (fr) |
FR (1) | FR2950271B1 (fr) |
WO (1) | WO2011036374A2 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170026791A1 (en) * | 2013-12-27 | 2017-01-26 | Raz Weizman | Apparatus, system and method of bluetooth communication |
US10732507B2 (en) | 2015-10-26 | 2020-08-04 | Esko-Graphics Imaging Gmbh | Process and apparatus for controlled exposure of flexographic printing plates and adjusting the floor thereof |
US11346371B2 (en) | 2018-05-04 | 2022-05-31 | Raytheon Technologies Corporation | Method to strip coatings off of an aluminum alloy fan blade |
CN110227617B (zh) * | 2019-06-08 | 2024-02-27 | 天津海莱姆智能装备有限公司 | 雾化喷涂装置用喷头 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3526162A (en) * | 1968-05-21 | 1970-09-01 | Rogers Freels & Associates Inc | Process and apparatus for cutting of non-metallic materials |
GB1485125A (en) * | 1974-12-12 | 1977-09-08 | Plessey Co Ltd | Cylindrical bearing and sealing device |
US4396354A (en) * | 1980-10-31 | 1983-08-02 | Union Carbide Corporation | Cryogenic pump and method for pumping cryogenic liquids |
US4641786A (en) * | 1984-12-14 | 1987-02-10 | Cryoblast, Inc. | Nozzle for cryogenic cleaning apparatus |
US5782253A (en) * | 1991-12-24 | 1998-07-21 | Mcdonnell Douglas Corporation | System for removing a coating from a substrate |
TW201341B (en) * | 1992-08-07 | 1993-03-01 | Raychem Corp | Low thermal expansion seals |
US5787940A (en) * | 1993-03-30 | 1998-08-04 | Process Systems International, Inc. | Cryogenic fluid system and method of pumping cryogenic fluid |
US5456629A (en) * | 1994-01-07 | 1995-10-10 | Lockheed Idaho Technologies Company | Method and apparatus for cutting and abrading with sublimable particles |
US5456085A (en) * | 1994-03-07 | 1995-10-10 | Popp; James L. | Process and apparatus for cryogenically cleaning residue from containers and reducing the bulk volume thereof |
US5964414A (en) * | 1998-04-30 | 1999-10-12 | Stoneage, Inc | High pressure liquid rotary nozzle with viscous retarder |
JP3728396B2 (ja) * | 2000-04-12 | 2005-12-21 | セイコーエプソン株式会社 | 磁石材料の製造方法 |
US6640556B2 (en) * | 2001-09-19 | 2003-11-04 | Westport Research Inc. | Method and apparatus for pumping a cryogenic fluid from a storage tank |
EP1438157B1 (fr) * | 2001-10-22 | 2011-04-27 | Air Products And Chemicals, Inc. | Connexion d'alimentation de fluide cryogenique pour machines de fabrication |
US6581390B2 (en) * | 2001-10-29 | 2003-06-24 | Chart Inc. | Cryogenic fluid delivery system |
US7316363B2 (en) * | 2004-09-03 | 2008-01-08 | Nitrocision Llc | System and method for delivering cryogenic fluid |
US7310955B2 (en) * | 2004-09-03 | 2007-12-25 | Nitrocision Llc | System and method for delivering cryogenic fluid |
KR20070058535A (ko) * | 2004-09-28 | 2007-06-08 | 다이킨 고교 가부시키가이샤 | 습동부재 및 유체기계 |
FR2950277B1 (fr) * | 2009-09-23 | 2012-01-13 | Air Liquide | Procede pour eliminer un revetement present sur la surface d'un recipient de gaz |
-
2009
- 2009-09-23 FR FR0956537A patent/FR2950271B1/fr not_active Expired - Fee Related
-
2010
- 2010-09-15 CN CN2010800417683A patent/CN102497958A/zh active Pending
- 2010-09-15 WO PCT/FR2010/051909 patent/WO2011036374A2/fr active Application Filing
- 2010-09-15 EP EP10773118.4A patent/EP2480378B1/fr not_active Not-in-force
- 2010-09-15 JP JP2012530309A patent/JP2013505148A/ja not_active Withdrawn
- 2010-09-15 US US13/395,749 patent/US20120171934A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO2011036374A2 * |
Also Published As
Publication number | Publication date |
---|---|
EP2480378B1 (fr) | 2014-02-26 |
WO2011036374A3 (fr) | 2011-05-19 |
JP2013505148A (ja) | 2013-02-14 |
US20120171934A1 (en) | 2012-07-05 |
FR2950271A1 (fr) | 2011-03-25 |
FR2950271B1 (fr) | 2011-12-09 |
WO2011036374A2 (fr) | 2011-03-31 |
CN102497958A (zh) | 2012-06-13 |
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