EP1325974A2 - Dichtungsvorrichtung für unter Druck stehende Einrichtungen zur Förderung von zu behandeldem Material - Google Patents

Dichtungsvorrichtung für unter Druck stehende Einrichtungen zur Förderung von zu behandeldem Material Download PDF

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Publication number
EP1325974A2
EP1325974A2 EP02022385A EP02022385A EP1325974A2 EP 1325974 A2 EP1325974 A2 EP 1325974A2 EP 02022385 A EP02022385 A EP 02022385A EP 02022385 A EP02022385 A EP 02022385A EP 1325974 A2 EP1325974 A2 EP 1325974A2
Authority
EP
European Patent Office
Prior art keywords
working fluid
inlet
ducts
area
treatment space
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Withdrawn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
EP02022385A
Other languages
English (en)
French (fr)
Other versions
EP1325974A3 (de
Inventor
Marco Mauro Maltagliati
Enrico Becherini
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.)
Cmt Srl Costruzione Macchine Tessili
Original Assignee
Cmt Srl Costruzione Macchine Tessili
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 Cmt Srl Costruzione Macchine Tessili filed Critical Cmt Srl Costruzione Macchine Tessili
Publication of EP1325974A2 publication Critical patent/EP1325974A2/de
Publication of EP1325974A3 publication Critical patent/EP1325974A3/de
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
    • D06B23/14—Containers, e.g. vats
    • D06B23/18—Sealing arrangements

Definitions

  • the invention relates to a method and to the respective equipment for continuously submitting a material in rope or in width, such as fabric, any kind of sliver or other material, to a treatment at a higher pressure than atmospheric pressure, at a high temperature, also in the presence of vapor and gas to be kept insulated from the external environment.
  • a material in rope or in width such as fabric, any kind of sliver or other material
  • the invention relates to a sealing device in pressure equipments through which material to be treated - such as fabrics, yarns, slivers or films- continuously flows, which presents at the entry into the pressure treatment space and/or at the exit of this space of the equipment a portion with reduced section or anyhow featuring high hydraulic resistance, in which there is a fluid, which can be gas or vapor at high viscosity or preferably a working fluid, which is fed into this treatment space with at least an equal or slightly higher pressure than the one prevailing in the treatment space, to circulate in this portion towards the outside, while being discharged between this portion and outside, and to keep a water head with respect to the treatment space.
  • a fluid which can be gas or vapor at high viscosity or preferably a working fluid
  • the working fluid can be introduced by a propelling device (such as pump or similar) or be drawn from one inlet tank at a level at which a water head is created, and can be discharged and collected in a collecting tank for its disposal and/or possible recovery.
  • a propelling device such as pump or similar
  • Each high hydraulic resistance portion of both the entry and the exit ducts can be comprised of a reduced section, namely an extended slit having a slightly larger section than that of the material to be treated, to enable the passage of the material in laminar mode, that is laid down.
  • each entry and exit duct can advantageously feature more connections along said extended slit section, to even out the flow along the path.
  • each high hydraulic resistance portion can include: one set of reduced sections causing pressure drops in series; or one labyrinth arrangement, having a similar function; or also at least an even resiliently flexible obstacle, which adapts the reduced section depending on dimensional features of passing material, even when unequal; or, again, at least a dimensionally adjustable obstacle for example a pressure-controlled air chamber or alike.
  • At least one of these entry and exit ducts extends partially as an air gap between a rotor with horizontal axis, onto which the material to be treated is guided and its direction of motion reversed, and a mantle surrounding it; in the area of this air gap with which the material is provided the portion with reduced section is formed, while in the area of said air gap free from said material a seal shield between the rotor and the mantle is foreseen.
  • An inert gas supply may be provided at the inlet duct and/or at the outlet duct, between the inlet point of the liquid and the connection to the treatment area, to avoid the contact between the gas or the vapour contained of the treatment space and the working fluid contained in the inlet and outlet ducts; this inert gas can be renewed cyclically.
  • Means to recycle and/or replace and/or reintegrate cyclically the working fluid contained in the inlet and outlet ducts can be foreseen.
  • Said working fluid in each of the entry and exit ducts can be chosen so as to exercise a certain action onto the material passing by; the two working fluids can also be different.
  • Filtering and/or conditioning means of the working fluid which is fed can also be foreseen, especially when a recycle is foreseen.
  • the high hydraulic resistance portion may advantageously be provided with seals adapted to reduce the flow of the working fluid in said portion such as to limit the required capacity of the pump.
  • 11 denotes the treatment space or chamber consisting of a chamber, through which the material M to be continuously treated flows.
  • Said material may be fabric or a yarn assembly or rope structure or a continuous or discontinuous sliver or elements which are carried by a continuous transport base; such material M is introduced as indicated by arrow f1 and comes out as indicated by arrow f3 along paths which partially extend into two inlet (13) and outlet (15) ducts; in addition to these ducts the material is also further guided through chamber 11 by guiding means wholly denoted by 17 or alike, which may also be provided along said ducts 13 and 15; the outlets of the two ducts 13 and 15 into the treatment chamber 11 are denoted by 40 and 40A.
  • Each of the two ducts 13 and 15 features a reduced section portion or an equally high hydraulic resistance portion denoted by 13A and 15A respectively, through which the material M passes anyway.
  • a working fluid is fed, which can be "inert” or active, i.e. exercising a certain function onto the material passing by.
  • Areas 25, 25A are located lower than outlets 40 and 40A.
  • a working fluid L has been foreseen, which is the same in both ducts 13 and 15.
  • the introduction of the working fluid can therefore be ensured by one device 27, such as a pump, which will be adjustable in order to set, at inlet points 25 and 25A, a pressure, which is equal to or slightly higher than that existing in the treatment space.
  • Pump 27 will be adjusted to ensure at any time the correct setting of the working fluid L level in the portion of the duct 13 and/or 15 opening into chamber 11; this portion advantageously has a larger section to facilitate the control by sensors, which should control the pump operation to correct and keep the working fluid level within predetermined limits.
  • the working fluid L tends to escape from the branch of ducts 13 and 15 which communicates with the treatment chamber 11 towards the outside both at the inlet and at the outlet of the material.
  • High hydraulic resistance portions 13A and 15A allow to limit the flow of such leakage, keeping the required pressure at points 25 and 25A, i.e. slightly higher than that existing in chamber 11.
  • a splitting of ducts 13 and 15 is provided, a branch being orientated upwards for passage - in 13X and out 15X - of the material M, and a deviation 13Y and 15Y is provided to discharge the working fluid L.
  • the two ducts 13 and 15 are not split.
  • Other arrangements may be provided such as deflectors, spurt screens, channels or deviating pipes, section expansions, collecting vessels as indicated by a dash-dot line in Fig.2, or alike.
  • FIG.3 In the diagram of Fig.3 (and in that of Fig.4) an embodiment is indicated, in which there is a double inlet system of the working fluid, comprising two recycling pumps 27X and 27Y for working fluids which can be different or the same. With two pumps there are more possibilities for a selective adjustment of inflows into the two ducts 13 and 15.
  • Fig. 3 and 4 closed circulations for the two working fluids L have been foreseen, with filtering 31 and conditioning 35 devices.
  • the filtering and conditioning devices can be located at a different position than that indicated in the drawing, provided they are inserted in the recycle circuits.
  • FIG.4 an alternative embodiment is illustrated by means of stroke and point, in which the circuit of the liquid is open, with a discharge tank 36 and a feed tank 37 for pump 38 replacing the 27X one.
  • the two tanks can be combined if the working fluid L is recycled; the working fluid can be integrated and its partial discharge will then be arranged for a progressive renewal of said working fluid L.
  • ducts 13 and 15, including portions 13A and 15A may have for example a circular section.
  • duct 113 (corresponding to inlet 13) is illustrated, with a high hydraulic resistance portion 113A corresponding to 13A and with a recycle circuit 123 corresponding to 23 and equipped with a pump 127 for the circulation of recycling working fluid L as indicated by arrow f17 from inlet branch (as indicated by arrow f1) to the branch opening into the treatment chamber 11.
  • This arrangement features a section of the duct 113 (and accordingly of outlet conduit corresponding to 15) developed as a transversal slit; therefore, it is necessary to assure a regular intake by pump 127 in the intake portion 123A and also in the inlet portion 123B towards the branch of duct 113 that reaches chamber 11.
  • the recycle circuit 123 is formed by a plurality of connections 123C suitably sized and distributed along the transversal extension between the reduced section 113A of duct 113, and the parts 123A and 123B of the recycle circuit 123; in this way the inflow and the withdrawal of the working fluid L are substantially regular along the slit transversal section of duct 113.
  • the recycle circuit 123 could include also in this case conditioning means for cooling and heating or alike.
  • conditioning means for cooling and heating or alike In the area of the reduced section 113A one system for adjusting one transfer slit or other similar arrangements could be foreseen, to adjust the size of this slit according to the material to be treated, to get the max. hydraulic resistance compatibly with the need to ensure the passage of the material. This system can, if necessary, be replicated.
  • a further embodiment is shown of either of the two ducts (that, in this case, can be U-shaped), in particular the inlet duct 213 equivalent to those numbered 13 or 113.
  • the feed of the material M according to arrow f1 occurs in a portion with elongated inlet section 213A, whereas numeral 213B denotes the branch - partially of widened section - opening into the schematically sketched treatment chamber 11.
  • the intermediate portion between the two portions 213A and 213B of inlet duct 213 extends like an air gap 213C between a mantle 245 and a rotor 247 which is surrounded by said mantle; the material M passes through this air gap 213C and the connections 223C of the two parts 223A and 223B of duct 223, respectively, into which the working fluid pump 227 is inserted.
  • the air gap 213C is closed by a diaphragm or a seal shield 249 lying between the mantle 245 and the rotor 247, in order to ensure the forming of the duct among portions 213A, 213C, 213B, partially defined from the air gap between the mantle 245 and the rotor 247.
  • the inlet of the working fluid and a recycle set can be foreseen including members and devices perfectly similar to those foreseen in other embodiments.
  • the air gap 213C presents one or more narrowings 213X or other high hydraulic resistance portions in the arched portion where material M is provided and flows, whereas the diaphragm or seal shield 249 is located where said material is not provided, with an even different arrangement from the one illustrated, in which the two elements 213X and 249 are vertically aligned.
  • one rotor like 247 promotes the regular flow of the laminar material i.e. laid-down, such as a fabric, a sliver-shaped film or others.
  • the working fluid L that - as a same liquid or as two or more different ones - is provided in either duct such as 13 and 15 or 113 and the not illustrated equivalent or as 213 and the not illustrated equivalent, can advantageously be a liquid of comparatively high viscosity to reduce at most the flow through the reduced sections such as 13A and 15A or to the equivalent ones of the following examples.
  • areas of reduced section guiding and sealing members can be foreseen such as more or less flexible rims, small apertures, labyrinths, pressure rollers in contact with the material and others, in order to reduce the flow section of the liquid L during the continuous passage of material M.
  • the liquid L in each of the inlet and exit ducts can be replenished either cyclically or systematically replaced by foreseeing an inlet and optionally a withdrawal by means for example of a overflow, as this overflow can be provided on the inlet respectively exit branch and on the branch in communication with the treatment chamber like 11, in order to gain the possibility of replenishing or cyclical or continuous replacement of said liquid L in each of the entry and exit ducts such as 13 and 15 of Fig.1 and those of the following examples.
  • a gas cushion - wherein the gas is preferably heavier than those gases or vapors which are provided in space 11 - can be foreseen in the inner branch of at least one of the ducts, such as 13 or 15, which is in communication with the treatment space 11, to avoid any contact of the liquid of said ducts with said gases or vapors.
  • This inert gas can be fed with a supply referred to with 400 in fig. 1 to 4.
  • connections 123C, 223C are foreseen and alike for an even distribution of the working fluid flow; this will also be followed by other measures or replaced by them to get an as much as possible homogeneous flow along the sections for the passage of the material, which can also extend through a very elongated slit.
  • Fig.11 to 18 show many possible solutions of arrangements permitting the pressure drop and the reduction of flow in the high hydraulic resistance points and forming seals, such as 13A and 15A and those equivalent in all different solutions, to limit the quantity of working fluid escaping to the atmosphere.
  • Fig. 11 and 13 arrangements are foreseen with one or more resiliantly flexible metal sheets.
  • suitable baffles are foreseen to create labyrinths or subsequent sections.
  • Fig. 16 and 17 the use is foreseen of one or more deviating and/or pressure rollers.
  • Fig. 18 shows one solution with blisters provided with a flexible or even elastic wall, which can be adjusted with the variation of the fluid pressure inside them.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
  • Furnace Details (AREA)
  • Treatment Of Fiber Materials (AREA)
EP02022385A 2001-10-10 2002-10-09 Dichtungsvorrichtung für unter Druck stehende Einrichtungen zur Förderung von zu behandeldem Material Withdrawn EP1325974A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITFI20010188 2001-10-10
ITFI20010188 ITFI20010188A1 (it) 2001-10-10 2001-10-10 Dispositivo di tenuta in apparecchi a pressione attraversati dal materiale da trattare

Publications (2)

Publication Number Publication Date
EP1325974A2 true EP1325974A2 (de) 2003-07-09
EP1325974A3 EP1325974A3 (de) 2003-11-19

Family

ID=11442287

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02022385A Withdrawn EP1325974A3 (de) 2001-10-10 2002-10-09 Dichtungsvorrichtung für unter Druck stehende Einrichtungen zur Förderung von zu behandeldem Material

Country Status (2)

Country Link
EP (1) EP1325974A3 (de)
IT (1) ITFI20010188A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2133192A3 (de) * 2008-06-12 2009-12-23 Robert Bosch Gmbh Vorrichtung zur Gasexposition
EP2982791A1 (de) * 2014-08-07 2016-02-10 Saurer Germany GmbH & Co. KG Vorrichtung zur thermischen behandlung von garnen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1635003A1 (de) * 1966-08-06 1971-04-08 Kleinewefers Soehne J Hochdruckdichte Durchlassvorrichtung fuer Werkstoffe,Textilien od.dgl.in breiter Bahn oder in Strangform
IL40966A (en) * 1972-11-29 1976-07-30 Klier S A process for continuous treatment of textile materials
DE3033409A1 (de) * 1980-09-05 1982-04-22 Honeywell Gmbh, 6000 Frankfurt Vorrichtung zur waermebehandlung von synthetischen faeden und garnen
DE29601719U1 (de) * 1996-02-01 1997-06-05 Strämke, Siegfried, Dr.-Ing., 52538 Selfkant Materialschleuse
DE19909380A1 (de) * 1999-02-16 2000-08-17 Temco Textilmaschkomponent Verfahren zum Einführen und Anlegen von Garn und Falschdralltexturiereinrichtung

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2133192A3 (de) * 2008-06-12 2009-12-23 Robert Bosch Gmbh Vorrichtung zur Gasexposition
EP2982791A1 (de) * 2014-08-07 2016-02-10 Saurer Germany GmbH & Co. KG Vorrichtung zur thermischen behandlung von garnen
US10465313B2 (en) 2014-08-07 2019-11-05 Saurer Technologies GmbH & Co. KG Device for the thermal treatment of yarns

Also Published As

Publication number Publication date
EP1325974A3 (de) 2003-11-19
ITFI20010188A1 (it) 2003-04-10

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