EP3143199B1 - Verteiler - Google Patents

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Publication number
EP3143199B1
EP3143199B1 EP15747844.7A EP15747844A EP3143199B1 EP 3143199 B1 EP3143199 B1 EP 3143199B1 EP 15747844 A EP15747844 A EP 15747844A EP 3143199 B1 EP3143199 B1 EP 3143199B1
Authority
EP
European Patent Office
Prior art keywords
manifold
outlet opening
fabric
fluid
air
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.)
Active
Application number
EP15747844.7A
Other languages
English (en)
French (fr)
Other versions
EP3143199A1 (de
Inventor
Soni SHRIRAM
Thakkar ANKIT
Shah YOGESH
Panchal SAHAJ
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.)
Inspiron Engineering Private Ltd
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Inspiron Engineering Private Ltd
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Publication date
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Publication of EP3143199A1 publication Critical patent/EP3143199A1/de
Application granted granted Critical
Publication of EP3143199B1 publication Critical patent/EP3143199B1/de
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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F5/00—Dryer section of machines for making continuous webs of paper
    • D21F5/18—Drying webs by hot air
    • D21F5/185—Supporting webs in hot air dryers
    • D21F5/187—Supporting webs in hot air dryers by air jets
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C7/00—Heating or cooling textile fabrics
    • D06C7/02—Setting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes

Definitions

  • the present invention relates to a manifold. More particularly, it relates to a manifold that can be provided at the delivery end of a blower/dryer used to blow fluid e.g. hot air on fabric, cellulosic or other fibrous material.
  • a blower/dryer used to blow fluid e.g. hot air on fabric, cellulosic or other fibrous material.
  • WO03/038364A1 discloses a waste heat recovering device, cleaning-water auto-filtering device, and exhaust gas regenerating device for tenters.
  • textile (TX) woven by a weaving machine is dipped in a mixture of water, resin, and chemicals in a settling tank (ST), dehydrated by a mangle (MG), and dried and heat-treated using several chambers (CHI to CH4) so as to improve its quality.
  • Each of the chambers (CHI to CH4) comprises a main body (CM) surrounded with an insulating material (IS), and hundreds of hot-air nozzles (HN) for jetting hot air to an upper and a lower side of the textile (TX) passing throughout the center of the main body (CM).
  • CM main body
  • IS insulating material
  • HN hot-air nozzles
  • the hot-air nozzles (HN) are set on several hot-air distribution boxes (HD) connected to a hot-air pipe (HP), and the hot air heated by a heater (HT) cycles in the hot-air pipe (HP) using a hot-air blower (HB).
  • Each of gas exhaust pipes (GP) is set on an upper side of each of the chambers (CHI to CH4), the gas exhaust pipes (GP) communicate with one main gas exhaust pipe (GM), and an exhaust-blower (BW) is connected to the main gas exhaust pipe (GM).
  • cold air flowing into each chamber through its inlet and out through its outlet is mixed with air cycling in the chamber and heated by the heater (HT) to a predetermined temperature
  • the heated hot air flows by the hot-air blower (HB) through the hot-air pipe (HP) and hot-air distribution boxes (HD) to the hot-air nozzles (HN)
  • the textile (TX) passing between the upper and lower hot-air nozzles (HN) is dried or heated by the hot air jetted through the hot-air nozzles (HN).
  • the above said device does not enable a symmetrical and uniform air impingement to the material (fabric).
  • US Patent No. 4,586,268 teaches a horizontal heat treatment tunnel for the treatment of fibers, threads, slit film or the like fibrillary material used in the textile field, wherein the material to be heat treated is transported side-by-side along a travel path, in endless length form, through the horizontally arranged tunnel, said tunnel comprising a heat-insulated housing having a treatment chamber, an inlet means for allowing entry of the material and an outlet means for allowing withdrawal of the material from the housing; a fan chamber; fan means arranged within said fan chamber for effecting circulation of a gaseous treatment medium within said housing and through said treatment chamber; heater means disposed downstream of said fan means in the treatment chamber for heating said treatment medium before the treatment medium contacts fibrillary material moving along said travel path through said treatment chamber; fan intake connecting means positioned solely to draw the gaseous treatment medium away from the travel path; fan exhaust means positioned solely to direct the gaseous treatment medium toward the travel path through the fibrillary material and toward the fan intake connecting means; said fan intake connecting means including
  • EP 0979985 discloses an apparatus for heat treatment of a material web with an array of nozzles arranged above and below a central material web transportation level whereby each array of nozzles has a nozzle base with several nozzles turned towards the fabric web.
  • the nozzles have a cylindrical part which is arranged at a slant to the nozzle base and has a jet opening at one end and a funnel shaped expanding area at the other end, into which the base of the nozzle array protrudes.
  • the nozzles are arranged in recesses of the level of the base of the nozzle array.
  • US Patent No. 4271601 corresponding to DE2935866A1 discloses an apparatus for drying a web, such as a paper web, including a plurality of nozzle members successively located one after the other both in and transverse to the direction of travel of the web, each of the nozzle members defining a substantially annular slit and a carrying surface associated with the slit for directing gaseous drying fluid substantially contiguous with the carrying surface in a substantially radial flow field relative to the annular slit and in a direction substantially parallel to the web.
  • the air flow is guided by saucer members so that no central air is used in the nozzles.
  • the saucer parts attach by projections to the carrying surfaces where appropriate grooves or recesses have been provided for the projections.
  • the projections may be so dimensioned and placed that they confine the flow in such manner that two adjacent nozzles will not blow air straight against each other.
  • DE29704095 also discloses an apparatus for treating, especially drying, of sheet by treatment of gas from nozzles.
  • the nozzle body is composed of a nozzle tube, a nozzle support plate and a nozzle insert.
  • the nozzle tube is connected to a conical diverging surface (intermediate component) protruding out of the nozzle plate.
  • the nozzle insert is placed within the conical diverging surface of the nozzle which is axially displaceable and lockable in a selected position.
  • Stenter and similar equipment like hot flues, relax driers or belt driers are used to stretch the fabric width wise by air treatment of fabrics, especially by drying and/or heat setting textile or paper fabric.
  • the air/fluid that is typically heated up to 220 °C by heating element, is applied using many holes/openings on the manifold(s) (not shown) to one or both sides of the fabric which is continuously guided past the manifold(s).
  • manifold(s) not shown
  • the hot air is distributed using the so-called manifold(s) having holes/openings which are arranged above and/or below the fabric, cellulosic or other fibrous material through which the pre-heated hot air is supplied using at least one blower.
  • a disadvantage of the manifold design shown in Figs. 1(a)(i)-(a)(iii) is a flow related effect, which causes the hot air stream (21) exiting from the circular opening (26) on the manifold to be inclined in the (air) flow direction, i.e., manifold end and not at right angle to the fabric plane.
  • the angle of inclination (24) is a result of the arc cosine of the ratio - sum of the air outlet cross section area to the air-inlet cross-section area of the opening (26) of the manifold.
  • the outlet openings in the manifold are staggered, as shown in Figs. 1(c)(i)-(c)(iii) , for obtaining a perpendicular air discharge (21) from circular opening (26) on the manifold, i.e., the manifold is provided with a compensation angle with respect to the vertical plane using a zigzag-shaped design (27) of the manifold wall, which compensates the discharge angle as accurately as possible in case of the straight i.e. non-staggered outlet openings of the manifold.
  • This approach is significantly more complex to manufacture which results in additional aerodynamic losses due to the slightly zigzag-shaped manifold plate (27) that is folded.
  • the manifold claimed in the present application is simple in construction, does not involve any intermediate components interfering with the core air/gas stream flowing through the nozzle and have nozzles of greater cross-sectional area thereby increasing the efficiency of treatment of the fabric/material. Further the nozzles do not possess any annular slits or perforations which are responsible for aerodynamic losses.
  • the object of the present invention is to provide an aerodynamically efficient manifold at the delivery end of a blower/dryer for treatment of fabric, cellulosic or other fibrous material in which a uniform distribution of fluid across length and breadth of manifold can be obtained with good treatment results of fabric, cellulosic or other fibrous material.
  • At least one manifold at the delivery end of blower/dryer having a plate with at least one outlet opening which is conical having narrow inlet facing inside of the distribution channel of the manifold and wide outlet flush with the outer surface of the manifold plate and wherein fluid stream uniformly exits from the outlet opening across the length of the plate and the flow direction is controlled by varying the depth of the conical opening.
  • manifold (14/16) has a distribution channel (50) with an entry port (46) which is connected to the delivery end via feed channel (22) of a blower/dryer (not shown).
  • the distribution channel (50) is closed at the other end, making it a closed distribution channel (50).
  • the distribution channel (50) tapers from the entry port (46) to the other closed end, which typically resembles the dome shape of a chimney, to avoid problem of non-uniform treatment of the fabric, cellulosic or other fibrous material. Consequently, the cross sectional area of the distribution channel (50) reduces towards the closed end.
  • the manifold (14/16) comprises of a plate (44), having at least one outlet opening (63) which is conical, with narrow inlet (64) facing inside of the distribution channel (50) and wide outlet (65) flush with the outer surface of the plate (44) over which passes the fabric, cellulosic or other fibrous material (12).
  • more than one outlet openings (63) are provided on the plate (44) of the manifold (14/16).
  • the fluid (23) is fed into the manifold (14/16) from the feed channel (22) of a blower/dryer through the entry port (46). From the entry port (46), the fluid stream (23) flows into distribution channel (50) and then it is blown (21) onto the fabric, cellulosic or other fibrous material (12) through the conical outlet opening(s) (63) on the plate (44).
  • the sectional area of the distribution channel (50) is such that approximately the same amount of fluid is discharged from all the conical outlet openings (63) regardless of their distance from the port area (46).
  • the fluid (23) flows from the narrow inlet (64) to the wide outlet (65) of the conical outlet opening (63) on the plate (44) of the manifold (14/16) and therefore exits (21) at right angle to the plate (44).
  • the conical outlet opening (63) minimises internal aerodynamic losses and thus improves mass flow rate and provides more streamlined laminar flow. Due to improvement in mass flow rate, drying/cooling efficiency is improved with same amount of energy consumption.
  • conical outlet opening(s) (63) is/are nearly circular or oval. Due to the said nearly circular/oval shape of the conical outlet opening(s) (63) very smooth, less turbulent flow of fluid with high velocity is achieved which results in more mass flow rate and better drying/cooling efficiency. Further, the said conical outlet openings (63) are preferably embossed into the plate (44).
  • the conical outlet opening (63) has been designed to ensure that no sharp edges will come in contact with the fabric, cellulosic or other fibrous material, especially knit fabric by making the wide outlet (65) of the conical outlet opening (63) flush with the outer surface of the plate (44).
  • the plate (44) has conical outlet openings (63) across its length and breadth, as shown in fig. 2(i) .
  • the conical outlet opening(s) (63) are arranged in one or more rows, with or without offset to each other.
  • the plate (44) serves as a wall to the distribution channel (50) and is placed on top side of the distribution channel (50).
  • manifolds (14 and 16) are mirror images of each other.
  • Figure 5 is an illustration of one such preferable embodiment, which shows a schematic diagram of a pair of manifolds (14 and 16) at the delivery end of a blower/dryer.
  • the fluid stream (23) flows approximately horizontal through the distribution channel (50) and is deflected in a nearly vertical direction to stream out (21) of the conical outlet opening (63).
  • the fluid stream (23) flows from the narrow inlet (64) to the wide outlet (65) of the conical outlet opening (63).
  • This causes turbulence (66) on that half side of the conical outlet opening (63), which is located in the direction to the fluid entrance to the manifold (14/16), i.e. against the flow direction of the fluid (23) inside the distribution channel (50).
  • This turbulence (66) in turn causes a low pressure, which pulls the fluid stream in a sufficiently accurate 90° vertical direction when it flows out (21) through the conical outlet opening (63).
  • a 90° vertical out streaming of the fluid ensures a 90° vertical striking of the fluid (21) onto the fabric, cellulosic or other fibrous material (12) which in turn causes a uniform down streaming of the fluid along the fabric, cellulosic or other fibrous material (12) in the direction of both edges of the fabric, cellulosic or other fibrous material (12).
  • This uniform down streaming results in uniform drying/cooling across the length and width of the fabric, cellulosic or other fibrous material (12).
  • said outlet opening (63) works on the convergent-divergent nozzle principle, wherein the convergent part of outlet opening (63) is created virtually inside distribution channel (50) by fluid stream (23) as shown in Fig 2(v) .
  • Narrow inlet (64) of outlet opening gives throttling effect or Venturi effect to fluid flowing out from the wider outlet opening (65) which is the so called divergent part of outlet opening (63). Due to this throttling effect, kinetic energy of the fluid increases owing to the pressure and internal energy so created.
  • the divergent part of the outlet opening (63) helps to control direction of fluid flow as it exits.
  • rows of manifolds (14/16) are proposed on both sides of the fabric, cellulosic or other fibrous material (12) to be treated, between which spaces are provided, for discharging the fluid (21) blown out through the outlet openings (63).
  • the outlet opening (63) of the manifold (14/16) has varying depth.
  • one or more outlet opening(s) (63) of a manifold (14/16) vary in depth from the other outlet openings (63).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Drying Of Solid Materials (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Claims (6)

  1. Verteiler (14/16) zur Fluidbehandlung eines Gewebe-, Zellulose- oder anderen Fasermaterials (12),
    wobei der Verteiler (14/16) umfasst:
    einen geschlossenen Verteilerkanal (50), der eine Eingangsöffnung (46) an einem Ende zum Zuführen von Fluid in den Verteilerkanal (50) aufweist; und
    eine Platte (44) mit mindestens einer konischen Auslassöffnung (63);
    dadurch gekennzeichnet, dass
    die konische Auslassöffnung (63) einen schmalen Einlass (64), der auf die Innenseite des Verteilerkanals (50) zeigt, und einen breiten Auslass (65) umfasst, der bündig mit der Außenfläche der Platte (44) ist, an der das Gewebe-, Zellulose- oder andere Fasermaterial (12) passiert.
  2. Verteiler nach Anspruch 1, gekennzeichnet durch die Tatsache, dass sich der Verteilerkanal (50) von der Eingangsöffnung (46) zum anderen Ende verjüngt.
  3. Verteiler nach Anspruch 1, gekennzeichnet durch die Tatsache, dass die Platte (44) über ihre Länge und Breite Auslassöffnungen (63) aufweist.
  4. Verteiler nach Anspruch 3, gekennzeichnet durch die Tatsache, dass die Auslassöffnung(en) (63) in einer oder mehreren Reihen mit oder ohne Versatz zueinander angeordnet sind.
  5. Verteiler nach Anspruch 1, 3 und 4, gekennzeichnet durch die Tatsache, dass die Form der Auslassöffnung(en) (63) nahezu kreisförmig oder oval ist/sind.
  6. Verteiler nach Anspruch 3 und 4, gekennzeichnet durch die Tatsache, dass eine oder mehrere Auslassöffnung(en) (63) in Tiefen von den anderen Auslassöffnungen (63) variieren.
EP15747844.7A 2014-05-15 2015-05-15 Verteiler Active EP3143199B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN1656MU2014 2014-05-15
PCT/IN2015/000209 WO2015173835A1 (en) 2014-05-15 2015-05-15 A manifold

Publications (2)

Publication Number Publication Date
EP3143199A1 EP3143199A1 (de) 2017-03-22
EP3143199B1 true EP3143199B1 (de) 2019-07-31

Family

ID=53785678

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15747844.7A Active EP3143199B1 (de) 2014-05-15 2015-05-15 Verteiler

Country Status (5)

Country Link
EP (1) EP3143199B1 (de)
KR (1) KR101983889B1 (de)
CN (1) CN106605023B (de)
ES (1) ES2748449T3 (de)
WO (1) WO2015173835A1 (de)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB920034A (en) * 1960-02-26 1963-03-06 Alberto Bacilieri Jet drying apparatus
DE2935866A1 (de) * 1978-09-11 1980-03-20 Valmet Oy Bahntrockner nach dem lufttrageprinzip
GB2078356A (en) * 1980-06-20 1982-01-06 Greenbank Cast Basalt Eng Drying or conditioning webs
US4586268A (en) 1982-02-19 1986-05-06 Vepa Aktiengesellschaft Heat treatment tunnel
US4718178A (en) * 1985-11-29 1988-01-12 Whipple Rodger E Gas nozzle assembly
FI92421B (fi) * 1992-03-19 1994-07-29 Valmet Paper Machinery Inc Menetelmä ainesratojen ilmakuivatuksessa, ilmakuivattimen suutin-puhalluslaatikko ja sellukuivatin
DE29704095U1 (de) * 1997-03-06 1998-07-02 Kiersch, Walter, 22880 Wedel Vorrichtung zum Trocknen von flächigem Gut
DE19836834A1 (de) * 1998-08-13 2000-03-02 Brueckner Trockentechnik Gmbh Vorrichtung zur Wärmebehandlung einer Warenbahn
KR100470804B1 (ko) 2001-10-11 2005-02-21 임호권 섬유 원단 후가공장치용 폐열회수장치 및 세척수자동여과장치와 이들을 응용한 배출가스 재처리장치
ITFI20080100A1 (it) * 2008-05-19 2009-11-20 Coramtex Srl "macchina per la lavorazione di tessuti in largo e relativo metodo"

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
ES2748449T3 (es) 2020-03-16
KR20170005818A (ko) 2017-01-16
KR101983889B1 (ko) 2019-05-29
CN106605023B (zh) 2020-03-10
EP3143199A1 (de) 2017-03-22
WO2015173835A4 (en) 2016-03-17
CN106605023A (zh) 2017-04-26
WO2015173835A1 (en) 2015-11-19

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