EP3143199A1 - A manifold - Google Patents

A manifold

Info

Publication number
EP3143199A1
EP3143199A1 EP15747844.7A EP15747844A EP3143199A1 EP 3143199 A1 EP3143199 A1 EP 3143199A1 EP 15747844 A EP15747844 A EP 15747844A EP 3143199 A1 EP3143199 A1 EP 3143199A1
Authority
EP
European Patent Office
Prior art keywords
manifold
outlet opening
plate
fabric
fact
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
Application number
EP15747844.7A
Other languages
German (de)
French (fr)
Other versions
EP3143199B1 (en
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 Eng Private Ltd
Inspiron Engineering Private Ltd
Original Assignee
Inspiron Eng Private Ltd
Inspiron Engineering Private Ltd
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 Inspiron Eng Private Ltd, Inspiron Engineering Private Ltd filed Critical Inspiron Eng Private Ltd
Publication of EP3143199A1 publication Critical patent/EP3143199A1/en
Application granted granted Critical
Publication of EP3143199B1 publication Critical patent/EP3143199B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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 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 : 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).
  • 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 a fan
  • 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).
  • it is important to maintain a uniform outlet distribution of the hot air/fluid stream from the manifold so that the result of the treatment is symmetric and uniform across the entire width of the fabric, cellulosic or other fibrous material.
  • 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.
  • Fig. l(a)(ii) shows front view of an opening/hole on a manifold used in the prior art
  • Fig. l(a)(iii) shows front view of computational fluid flow diagram of opening/hole shown in fig.l(a)(i);
  • Fig. l(b)(i) shows top view of an opening/hole with stumbling edges on a manifold plate used in the prior art
  • Fig. l(b)(ii) Shows front view of an opening/hole with stumbling edges on a manifold plate used in the prior art
  • Fig. l(b)(iii) shows front view of computational fluid flow diagram of an opening/hole with stumbling edges on a manifold plate used in the prior art as shown in fig. l(b)(i);
  • Fig. l(c)(i) shows top view of an opening/hole with zigzag shaped design on a manifold plate used in the prior art
  • Fig. l(c)(ii) shows front view of an opening/hole with zigzag shaped design on a manifold plate used in the prior art
  • Fig. l(c)(iii) shows front view of computational fluid flow diagram of an opening/hole with zigzag shaped design on a manifold plate used in the prior art as shown in fig. l(c)(i);
  • a disadvantage of the manifold design shown in Figs. l(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.
  • l(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 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.
  • a manifold (14/16) provided at the delivery end of a blower, for fluid treatment of fabric, cellulosic or other fibrous material (12) passing over the plate (44) of the said manifold (14/ 16) comprising: a closed distribution channel (50) having an entry port (46) at one end; and, a plate (44) with at least one outlet opening (63); characterized by the fact that the said outlet opening (63) is conical having 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).
  • a manifold as described above characterized by the fact that, its distribution channel (50) tapers from the entry port (46) to the other end.
  • a manifold as described above characterized by the fact that its plate (44) has outlet openings (63) across its length and breadth.
  • a manifold as described above characterized by the fact that the outlet opening(s) (63) are arranged in one or more rows, with or without offset to each other.
  • outlet opening(s) (63) is/are nearly circular or oval.
  • manifolds as described above, characterized by the fact that at least two manifolds are mirror images of each other.
  • Figure 2(i) shows front view of the manifold according to this invention.
  • Figure 2(ii) shows side view of the manifold according to this invention.
  • Figure 2(iii) shows enlarged view of outlet opening of the manifold shown in figure 2(ii).
  • Figure 2(iv) shows elevation view of computational fluid flow diagram of outlet opening shown in figure 2(iii).
  • Figure 2(v) shows side view of computational fluid flow diagram of outlet opening shown in figure 2(iii).
  • Figure 3(i) shows top view of outlet opening of the manifold according to this invention.
  • Figure 3(ii) shows flow diagram of fluid exiting through an outlet opening according to this invention.
  • Figures 4(a)(i), 4(b)(i) and 4(c)(i) show sectional view of outlet openings of varying depths along line A-A in Figs. 4(a)(ii), 4(b)(ii) and 4(c)(ii) respectively.
  • Figures 4(a)(ii), 4(b)(ii) and 4(c)(ii) show elevation outlet openings of varying depths.
  • Figures 4(a)(iii), 4(b)(iii) and 4(c)(iii) show elevation view of computational fluid flow diagram of conical outlet opening of varying depths
  • Figure 5 shows schematic diagram of a pair of manifolds at the delivery end of a blower/dryer according to this invention.
  • numerals indicate the objects/parts stated/described against the said numerals:
  • 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 arid 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. As shown in fig 3(ii), 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 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). This is similar to the Coanda Effect, which is known from fluid dynamics.
  • 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).
  • 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).
  • the advantages of the present invention are as follows: 1.
  • the manifold has low design cost and is aerodynamically efficient.

Abstract

The present invention pertains to a manifold (14/16) provided at the delivery end of a blower/dryer, for fluid treatment of fabric, cellulosic or other fibrous material (12) passing over the plate (44) of the said manifold (14/ 16) comprising a closed distribution channel (50) having an entry port (46) at one end; and, a plate (44) with at least one outlet opening (63); characterized by the fact that the said outlet opening (63) is conical having 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).

Description

DESCRIPTION
TITLE: "A MANIFOLD'
FIELD OF INVENTION:
The present invention relates to a manifold. More particularly, it relates to a manifold provided at the delivery end of a blower/dryer used to blow fluid e.g. hot air on fabric, cellulosic or other fibrous material.
PRIOR ART:
WO03/038364A1 discloses a waste heat recovering device, cleaning-water auto-filtering device, and exhaust gas regenerating device for tenters. In the said device, 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). 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). In other words, cold air flowing into each chamber through : 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), and 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). When drying or heat-treating process of the textile (TX) is conducted, moisture contained in the textile (TX) is vaporized to form steam during the drying process, and gas containing the resin and chemicals is generated from the textile (TX) during the heat-treating process. The above said device however, 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 a fan intake chamber that is narrowed conically away from the travel path on both sides towards the center of the travel path for promoting uniform flow of the treatment medium through the fibrillary material; said heater means extending in parallel with and in close juxtaposition to the travel path over the entire length and width of the travel path; screen wall means arranged above and below said heater means for regulating the flow of treatment medium through said heater means whereby heat is retained around said heater means; means for sealing marginal zones of the heater means so that said zones are gas-impermeable to prevent heat losses from said heater means; and guide means outside of said heat-insulated housing for transporting the fibrillary material along said travel path through the treatment chamber within said housing in a contact-free manner. However, the above said device neither indicates nor teaches the subject-matter of the present invention. 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. For this purpose, 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). In the process, it is important to maintain a uniform outlet distribution of the hot air/fluid stream from the manifold so that the result of the treatment is symmetric and uniform across the entire width of the fabric, cellulosic or other fibrous material.
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.
The disadvantages of different manifold designs used in the prior art can be seen in Figures l(a)(i)-(a)(iii), l(b)(i)-l(b)(iii) and l(c)(i)-l(c)(iii) appearing in the accompanying drawings wherein Fig. l(a)(i) shows top view of an opening/hole on a manifold used in the prior art;
Fig. l(a)(ii) shows front view of an opening/hole on a manifold used in the prior art;
Fig. l(a)(iii) shows front view of computational fluid flow diagram of opening/hole shown in fig.l(a)(i);
Fig. l(b)(i) shows top view of an opening/hole with stumbling edges on a manifold plate used in the prior art;
Fig. l(b)(ii)"Shows front view of an opening/hole with stumbling edges on a manifold plate used in the prior art;
Fig. l(b)(iii) shows front view of computational fluid flow diagram of an opening/hole with stumbling edges on a manifold plate used in the prior art as shown in fig. l(b)(i);
Fig. l(c)(i) shows top view of an opening/hole with zigzag shaped design on a manifold plate used in the prior art;
Fig. l(c)(ii) shows front view of an opening/hole with zigzag shaped design on a manifold plate used in the prior art; Fig. l(c)(iii) shows front view of computational fluid flow diagram of an opening/hole with zigzag shaped design on a manifold plate used in the prior art as shown in fig. l(c)(i);
In the above described figures, the following numerals indicate the objects/parts stated/described against the said numerals:
12 - Fabric;
21- Air/Fluid stream exiting from the manifold;
23 - Air/Fluid stream inside the manifold;
24- Angle of inclination;
25 - Stumbling edge on manifold plate;
26 - Circular opening on manifold plate;
27 - Zigzag design of manifold plate;
29- Square opening on manifold plate.
A disadvantage of the manifold design shown in Figs. l(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 result of this is that the air (21) striking the fabric (12) is not deflected uniformly to the right and left in the transverse direction of the manifold but more air flows to the right in the direction of the manifold end than in the opposite direction. This means that there is more process air at higher flow speed in the area of the fabric edge which is in the direction of the manifold end than in the opposite area of the fabric edge which is away from the manifold end. This resulting difference in heat transfer on the fabric results in an unacceptable difference and varying fabric wastage in the edge area, both during drying as well as during the setting and finishing processes (the so-called right / left non-uniformity). Different state of the art approaches are known to prevent the above disadvantage:
In one approach, so-called "stumbling edges" (25) are used, as shown in Figs. l(b)(i)-(b)(iii), which ensure a roughly perpendicular air discharge (21) from the manifold having square shaped opening (29) through vortex formation and thus ensure a uniform discharge onto the fabric (12). However, the aerodynamic losses of this approach due to the vortex formation and the unfavourable restriction factor caused by the square shaped openings are relatively high. In another approach, the outlet openings in the manifold are staggered, as shown in Figs. l(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, however, is significantly more complex to manufacture which results in additional aerodynamic losses due to the slightly zigzag-shaped manifold plate (27) that is folded.
OBJECT OF THE INVENTION:
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.
This objective is achieved by providing 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.
SUMMARY OF THE INVENTION:
A manifold (14/16) provided at the delivery end of a blower, for fluid treatment of fabric, cellulosic or other fibrous material (12) passing over the plate (44) of the said manifold (14/ 16) comprising: a closed distribution channel (50) having an entry port (46) at one end; and, a plate (44) with at least one outlet opening (63); characterized by the fact that the said outlet opening (63) is conical having 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).
Typically a manifold as described above characterized by the fact that, its distribution channel (50) tapers from the entry port (46) to the other end.
Typically a manifold as described above, characterized by the fact that its plate (44) has outlet openings (63) across its length and breadth. Typically a manifold as described above, characterized by the fact that the outlet opening(s) (63) are arranged in one or more rows, with or without offset to each other.
Typically a manifold as described above, characterized by the fact that the outlet opening(s) (63) is/are nearly circular or oval.
Typically two or more manifolds as described above, characterized by the fact that at least two manifolds are mirror images of each other.
Typically a manifold as described above, characterized by the fact that its outlet opening (63) has varying depth (68).
Typically a manifold as described above, characterized by the fact that its one or more outlet opening(s) (63) vary in depths from the other outlet openings (63). DESCRIPTION OF THE INVENTION:
The present invention will now be described with the help of the accompanying drawings wherein the same numerals are used to denote the same part. However, the drawings only illustrate the invention and in no way limit the invention.
The terms and words used in the following description and claims are not limited to the bibliographical meanings, but, are merely used by the inventor to enable a clear and consistent understanding of the invention. Accordingly, it should be apparent to those skilled in the art that the following description of exemplary embodiments of the present invention are provided for illustration purpose only and not for the purpose of limiting the invention as defined by the appended claims and their equivalents.
In the accompanying drawings:
Figure 2(i) shows front view of the manifold according to this invention.
Figure 2(ii) shows side view of the manifold according to this invention.
Figure 2(iii) shows enlarged view of outlet opening of the manifold shown in figure 2(ii). Figure 2(iv) shows elevation view of computational fluid flow diagram of outlet opening shown in figure 2(iii).
Figure 2(v) shows side view of computational fluid flow diagram of outlet opening shown in figure 2(iii).
Figure 3(i) shows top view of outlet opening of the manifold according to this invention. Figure 3(ii) shows flow diagram of fluid exiting through an outlet opening according to this invention.
Figures 4(a)(i), 4(b)(i) and 4(c)(i) show sectional view of outlet openings of varying depths along line A-A in Figs. 4(a)(ii), 4(b)(ii) and 4(c)(ii) respectively.
Figures 4(a)(ii), 4(b)(ii) and 4(c)(ii) show elevation outlet openings of varying depths.
Figures 4(a)(iii), 4(b)(iii) and 4(c)(iii) show elevation view of computational fluid flow diagram of conical outlet opening of varying depths
Figure 5 shows schematic diagram of a pair of manifolds at the delivery end of a blower/dryer according to this invention. In the . above described figures, the following numerals indicate the objects/parts stated/described against the said numerals:
12 - Fabric, Cellulosic or Other Fibrous Material;
14/16- Manifold as per the present invention;
21 - Fluid Stream exiting from the distribution channel;
22 - Feed Channel of the blower;
23 - Fluid Stream inside the distribution channel;
24 - Angle of inclination
44 - Plate of the distribution channel;
46 - Entry Port of the distribution channel;
50 - Distribution Channel of the manifold;
63 - Outlet Opening;
64 - Narrow Inlet of outlet opening;
65 - Wide Outlet of outlet opening;
66 - Turbulence of hot air/fluid;
68 -Depth of the conical outlet opening.
According to this invention, 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). In a preferable embodiment of the present invention, 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). In a preferable embodiment of the present invention, 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).
In a preferable embodiment of the present invention, 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.
In another preferable embodiment according to the present invention, 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).
Since individual corrective measures for the discharge angle such as stumbling edges and staggering of the outlet openings on the manifold are avoided by implementing the innovated conical outlet opening design which is very simple and aerodynamically advantageous to implement, excellent aerodynamics is achieved with little effort, which reduces the manufacturing cost as well as the energy consumption of the system.
In a preferable embodiment of the present invention, 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). In another preferable embodiment of the present invention, the plate (44) has conical outlet openings (63) across its length and breadth, as shown in fig. 2(i).
In yet another preferable embodiment of the present invention, the conical outlet opening(s) (63) are arranged in one or more rows, with or without offset to each other.
In yet another preferable embodiment of the present invention, the plate (44) serves as a wall to the distribution channel (50) and is placed on top side of the distribution channel (50).. In yet another preferable embodiment of the present invention, manifolds (14 arid 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. As shown in fig 3(ii), 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). This is similar to the Coanda Effect, which is known from fluid dynamics. Depending on the ratio - sum of the fluid outlet cross section area to the fluid-irilet cross-section area of an outlet opening (63), more or less low pressure is needed to achieve the 90° vertical direction of the fluid stream (21). This can be achieved by varying the depth (68) of the conical outlet opening(s) (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). In a preferable embodiment of the present invention, 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).
In yet another preferable embodiment of the present invention, the outlet opening (63) of the manifold (14/16) has varying depth.
In yet another preferable embodiment of the present invention, one or more outlet opening(s) (63) of a manifold (14/16) vary in depth from the other outlet openings (63).
ADVANTAGES:
The advantages of the present invention are as follows: 1. The manifold has low design cost and is aerodynamically efficient.
2. It maintains a more uniform outlet distribution of the fluid streams which ensures uniform treatment across the entire width of the fabric, cellulosic or other fibrous material.
3. Low manufacturing cost and time.
4. Easy to maintain.
5. Easy to define width wise manifold variants.
6. Outlet streaming velocity improved due to reduced aerodynamic losses.
7. Mass flow rate improved due to reduced aerodynamic losses.
8. Drying/cooling efficiency improved.

Claims

WE CLAIM:
1. A manifold (14/16) provided at the delivery end of a blower, for fluid treatment of fabric, cellulosic or other fibrous material (12) passing over the plate (44) of the said manifold (14/ 16) comprising: a closed distribution channel (50) having an entry port (46) at one end; and, a plate (44) with at least one outlet opening (63); characterized by the fact that the said outlet opening (63) is conical having 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).
2. A manifold claimed in claim 1, characterized by the fact that its distribution channel (50) tapers from the entry port (46) to the other end.
3. A manifold claimed in claim 1, characterized by the fact that its plate (44) has outlet openings (63) across its length and breadth.
4. A manifold claimed in claim 3, characterized by the fact that the outlet opening(s) (63) are arranged in one or more rows, with or without offset to each other.
5. A manifold claimed in claims 1, 3 and 4, characterized by the fact that the outlet opening(s) (63) is/are nearly circular or oval.
6. Typically two or more manifolds claimed in claims 1 to 5 characterized by the fact that at least two manifolds are mirror images of each other.
7. A manifold claimed in claim 1, characterized by the fact that its outlet opening (63) has varying depth (68).
8. A manifold claimed in claims 3 and 4, characterized by the fact that its one or more outlet opening(s) (63) vary in depths from the other outlet openings (63).
EP15747844.7A 2014-05-15 2015-05-15 Manifold Active EP3143199B1 (en)

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 true EP3143199A1 (en) 2017-03-22
EP3143199B1 EP3143199B1 (en) 2019-07-31

Family

ID=53785678

Family Applications (1)

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

Country Status (5)

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

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 (en) * 1978-09-11 1980-03-20 Valmet Oy RAILWAY DRYER ACCORDING TO THE AIR AIR PRINCIPLE
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 (en) * 1992-03-19 1994-07-29 Valmet Paper Machinery Inc Method for Air Drying of Substances, Nozzle Blower for an Air Dryer and Cellulose Dryer
DE29704095U1 (en) * 1997-03-06 1998-07-02 Kiersch Walter Device for drying flat material
DE19836834A1 (en) * 1998-08-13 2000-03-02 Brueckner Trockentechnik Gmbh Device for the heat treatment of a web
KR100470804B1 (en) 2001-10-11 2005-02-21 임호권 waste-heat recovering system and cleaning-water auto filtering system and exhaust-gas regenerative system for tenter
ITFI20080100A1 (en) * 2008-05-19 2009-11-20 Coramtex Srl "MACHINE FOR THE PROCESSING OF FABRICS IN WIDE AND RELATIVE METHOD"

Also Published As

Publication number Publication date
KR101983889B1 (en) 2019-05-29
CN106605023A (en) 2017-04-26
WO2015173835A1 (en) 2015-11-19
WO2015173835A4 (en) 2016-03-17
ES2748449T3 (en) 2020-03-16
KR20170005818A (en) 2017-01-16
EP3143199B1 (en) 2019-07-31
CN106605023B (en) 2020-03-10

Similar Documents

Publication Publication Date Title
KR101229347B1 (en) Hotwind spray nozzle of tenter machine and hotwind spray device of tenter machine using thereof
US10724794B2 (en) Treatment device and treatment method
US4304053A (en) Steam and hot air operated drying device and method for textile articles of clothing
US7997003B2 (en) Multistage continuous dryer, especially for plate-shaped products
US3060594A (en) Apparatus for the drying of webs of material with a heated gaseous medium
US4168580A (en) Drying installation for treating webs of material
EP3033453B1 (en) Fluid treatment unit for fabrics or cellulosic material as well as fluid treatment method
JPH08500427A (en) Equipment for spraying process gases onto fibrous webs
US5074278A (en) Pocket ventilator
GB1067003A (en) Method of and apparatus for fixing woven or knitted fabric of fully synthetic fibres or filaments
JP2003517095A5 (en)
EP3143199B1 (en) Manifold
KR101936701B1 (en) Drying apparatus having nozzle unit capable of adjusting air volume and wind speed
JP6920465B2 (en) Film manufacturing equipment
US4696642A (en) Apparatus for continuously heating an elongated textile article
KR20120113763A (en) Device and method for heat treating continuously conveyed sheet materials
CN105291412B (en) A kind of slit air port plenum chamber film transversal stretching device
US3559298A (en) Method for drying or heating or cooling a process material and a device for conducting such method
EP1079011B1 (en) Hot air drier for warp sizer
US7845197B2 (en) Triple pass tunnel finisher with an articulated spraying function
CN209779223U (en) Hierarchical drying device is used to fabrics
CN102747568B (en) Side-air fabric continuous pad dyeing drying chamber
CN114536614A (en) Processing apparatus for a web of flexible material that can be guided through a processing oven
JPH04222382A (en) Push drying machine
JPS5913276Y2 (en) Processing equipment for long fiber products

Legal Events

Date Code Title Description
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: 20161110

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 MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

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: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20180517

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20190308

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

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 MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602015034819

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1161006

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190815

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20190731

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190731

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190731

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190731

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191202

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191031

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191031

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190731

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191130

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190731

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191101

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190731

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190731

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2748449

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20200316

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190731

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190731

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190731

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190731

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200224

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190731

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190731

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602015034819

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

REG Reference to a national code

Ref country code: AT

Ref legal event code: UEP

Ref document number: 1161006

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190731

PG2D Information on lapse in contracting state deleted

Ref country code: IS

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191030

26N No opposition filed

Effective date: 20200603

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200531

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200531

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190731

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20200531

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20200515

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200515

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200531

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200515

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200515

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190731

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190731

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: TR

Payment date: 20230306

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20230505

Year of fee payment: 9

Ref country code: ES

Payment date: 20230601

Year of fee payment: 9

Ref country code: DE

Payment date: 20230524

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20230511

Year of fee payment: 9