EP3526382A1 - Jet manifold for water jet processing fibers - Google Patents

Jet manifold for water jet processing fibers

Info

Publication number
EP3526382A1
EP3526382A1 EP17764384.8A EP17764384A EP3526382A1 EP 3526382 A1 EP3526382 A1 EP 3526382A1 EP 17764384 A EP17764384 A EP 17764384A EP 3526382 A1 EP3526382 A1 EP 3526382A1
Authority
EP
European Patent Office
Prior art keywords
pressure
chamber
pressure distribution
distribution chamber
nozzle
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
EP17764384.8A
Other languages
German (de)
French (fr)
Other versions
EP3526382B1 (en
Inventor
Bernd Stork
Antonio GUZMAN NAVARRO
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.)
Truetzschler GmbH and Co KG
Original Assignee
Truetzschler GmbH and Co KG
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 Truetzschler GmbH and Co KG filed Critical Truetzschler GmbH and Co KG
Publication of EP3526382A1 publication Critical patent/EP3526382A1/en
Application granted granted Critical
Publication of EP3526382B1 publication Critical patent/EP3526382B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H18/00—Needling machines
    • D04H18/04—Needling machines with water jets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B05B1/20—Arrangements of several outlets along elongated bodies, e.g. perforated pipes or troughs, e.g. spray booms; Outlet elements therefor
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/492—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
    • B05B1/04—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in flat form, e.g. fan-like, sheet-like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B05B1/20—Arrangements of several outlets along elongated bodies, e.g. perforated pipes or troughs, e.g. spray booms; Outlet elements therefor
    • B05B1/202—Arrangements of several outlets along elongated bodies, e.g. perforated pipes or troughs, e.g. spray booms; Outlet elements therefor comprising inserted outlet elements

Definitions

  • the present invention relates to a nozzle beam for the treatment of fibers with water jets, comprising a longitudinally extending upper part, in which an elongate pressure chamber is introduced, wherein the pressure chamber has an end side with an opening for supplying water and an opposite closed end side, and wherein in the upper part of a pressure distribution chamber is introduced, which extends parallel to the pressure chamber and distributed over the length of the upper part a plurality of flow holes in the intermediate wall between the pressure chamber and the pressure distribution chamber are introduced, through which the water from the pressure chamber in the pressure distribution chamber is feasible, and comprising a longitudinally extending lower part, which is arranged liquid-tight on the upper part, and wherein a nozzle strip is received with holes for the water outlet in or on the lower part, and wherein in the upper part of a slot is introduced, the extends between the pressure distribution chamber and the nozzle strip for watering the nozzle strip.
  • a nozzle bar for the processing of a textile product with water jets is known.
  • the processing of the textile goods takes place with a plurality of water jets generated in a row, which extend for example over the entire width of a moving under the water jets textile web and act on these.
  • the nozzle bar on a water connection, with the water via the opening is fed into the pressure chamber.
  • the water for example, passes through the opening with a generated pre-pressure of 250 bar Pressure chamber, wherein the inflow velocity of the water through the opening, for example, up to 8m / s, and about in the middle of the pressure chamber, the flow rate still has a value of 2.5m / s.
  • the nozzle beam is elongate and thus slender, wherein the nozzle beam is formed substantially by the elongated upper part and the elongated lower part.
  • the lower part is arranged liquid-tight on the side of the upper part, which faces the textile product, and on the lower part and arranged in the lower part or on the lower part nozzle strips the water jets are generated by the plurality of holes which are introduced into the nozzle strip.
  • the pressure chamber is formed separately from the pressure distribution chamber, and between the pressure chamber and the pressure distribution chamber, a plurality of flow openings extend in the intermediate wall between the pressure chamber and the pressure distribution chamber.
  • the pressure is equalized over the width of the nozzle beam, so that not near the inlet opening for supplying the water, a high pressure and on the opposite, far side for feeding a lower pressure of the water prevails in front of the nozzle strip. Only by a uniform formation of the water jets over the entire width of the nozzle beam uniform processing of the textile goods can be ensured.
  • nozzle bars are permanently under water, so that any pressure loss in the nozzle bar at the same time brings a loss of energy during operation of the system. Consequently, the goal in the construction of nozzle beam in addition to a uniform formation of all water jets as low a pressure loss, starting from the opening for feeding water into the pressure chamber to the outflow of water from the holes in the nozzle strip.
  • the slit is made to equalize the water pressure in front of the outlet holes in the nozzle strip so that an increased turbulence of the water for a uniform application of the nozzle strip is generated from the inside, which, however, may be accompanied by an increased pressure loss.
  • nozzle bars must be cleaned at regular intervals, in particular, the nozzle strip must be removed in a simple manner.
  • geometric adjustments can allow a further reduction of the pressure loss, so that for example the narrow slot can be optimized to the mouth of the pressure distribution on the nozzle strip, as in EP 0 725 175 B1 described.
  • the object of the invention is the further improvement of a nozzle beam for the treatment of fibers with water jets, wherein the nozzle beam should have a low total pressure loss, and wherein the nozzle beam to be developed so that the generated over the holes in the nozzle strip water jets over the entire width of the nozzle bar as possible to be formed equal to each other. Furthermore, the nozzle bar should experience as minimal as possible space configuration, without leaving the upstream tasks of the invention unsolved.
  • the invention includes the technical teaching that the pressure chamber is cylindrical and has a circular cross section with a diameter of 70mm to 90mm and that the pressure distribution chamber is cylindrical and has a circular cross section with a diameter of 30mm to 40mm.
  • the design of the nozzle bar with the pressure chamber and the pressure distribution chamber with corresponding diameters of a circular cross section results in a surprisingly positive effect on the equalization of the outlet pressure across the slot in the direction of the nozzle strip at a simultaneously low total pressure drop in the nozzle bar.
  • the nozzle bar is in particular designed for the feeding of water at a speed of up to about 8 m / s at a pre-pressure of 250 bar.
  • the size ratios of the pressure chamber and the pressure distribution chamber results in an advantageous Overflow of water through the flow holes in the intermediate wall of, for example, up to 1 1 m / s.
  • the pressure chamber has a diameter of 75 mm to 85 mm and if the pressure distribution chamber has a diameter of 33 to 37 mm. In addition, it has been found that it is even more advantageous if the pressure chamber has a diameter of 80 mm and the pressure distribution chamber has a diameter of 35 mm. The result is a particularly minimal total pressure loss when the diameter of the pressure distribution chamber is slightly less than half of the diameter of the pressure chamber.
  • the distance between the center axis of the pressure chamber to the central axis of the pressure distribution chamber has an influence on the total pressure drop in the nozzle beam and on the most homogeneous pressure distribution of the water inside the front Holes over the length of the nozzle strip.
  • a distance between the center axis of the pressure can and the center axis of the Druckverteilkannnner of 80mm to 100mm, preferably from 85mm to 95mm and more preferably 92mm. Consequently, the length of the flow holes is 34.5mm.
  • the through-flow bores can be designed with further advantage stepped, and the mouth of the flow holes in the pressure chamber has a smaller diameter than the mouth of the flow holes in the pressure distribution chamber.
  • an impact body which is arranged cylindrical in the pressure distribution chamber, wherein the impact body has an elongated cylindrical shape and has a diameter of 20mm to 25mm and / or a diameter of 22.5mm.
  • the baffle body is received at its ends of its elongated cylindrical shape and / or the baffle body has distributed over its length spacers, by means of which the baffle body is held centrally arranged in the pressure distribution chamber. As indicated above, particularly advantageous flow conditions in the pressure distribution chamber result when the impact body is arranged centrally in the pressure distribution chamber.
  • the baffle body completely equidistant from the wall of the pressure distribution chamber, so that the flow cross section of the water from the flow holes into the slot around the baffle body is formed substantially constant. It has been found that with such a design of the impact body and its arrangement in the pressure distribution chamber, only minimal or no vortex formation occurs. Consequently, the pressure loss is minimized with the best possible pressure distribution over the length of the nozzle beam.
  • the pressure chamber in the upper part at least one of its end sides of the upper part with a Closing element is closed, and wherein a closure element has the opening for the water feed into the pressure chamber. It is also conceivable that the pressure chamber is closed on the opposite side of the closure element with the opening by the material of the upper part. For manufacturing reasons, however, it is advantageous if the upper part over its entire length has a substantially same cross-section material.
  • the pressure distribution chamber is closed in the upper part at its opposite end sides of the upper part with closure elements.
  • the impact body can be received with its ends between the closure elements. If the baffle body has to be removed from it, for example, for cleaning purposes of the pressure distribution chamber, then it is already sufficient to release one of the two closure elements from the end sides of the upper part.
  • 1 is a cross-sectional view through a nozzle bar for the
  • Fig. 2 is a cross-sectional view through the nozzle bar according to
  • Figure 1 shows a cross-sectional view through a nozzle beam 1 for the treatment of fibers with water jets
  • Figure 2 shows along the section line A-A is a cross-sectional view through the nozzle bar 1, wherein the sectional plane A-A transverse to the sectional plane through the nozzle bar 1 of Figure 1.
  • the nozzle bar 1 is described in more detail in conjunction with FIGS. 1 and 2.
  • the housing of the nozzle beam 1 has an upper part 10, which is screwed to the lower part 16 over the length of many times by screws 24.
  • the upper part 10 has two holes 1 1 and 13 extending in the longitudinal direction, of which the upper bore forms a pressure chamber 1 1 and the lower bore forms a pressure distribution chamber 13. Both chambers 1 1 and 13 are made open at the end sides of the upper part 10 and liquid-tightly closed by closure elements 22 for the pressure chamber 1 1 and by closing elements 23 for the pressure distribution chamber 13.
  • the closure element 22 for closing the pressure chamber 1 1 has a pressure measuring means 25, and the closure element 22 for closing the pressure chamber 1 1 on the right side has an opening 12, over which with a not closer Water shown in the water pressure chamber 1 1 can be fed.
  • the two chambers 1 1 and 13 are separated by an intermediate wall 15, wherein the intermediate wall 15 is formed by a cross-sectional area of the upper part 10.
  • Over the length of the nozzle bar 1 connects a large number of flow holes 14 in the intermediate wall 15, the two chambers 1 1 and 13, so that in the pressure chamber 1 1 inflowing water flows evenly distributed over the length of the nozzle beam 1 in the pressure distribution chamber 13.
  • the pressure distribution chamber 13 is open at the bottom, through the narrow compared to the diameter of the bore of the pressure distribution chamber 13 slot 19, which also extends over the length of the nozzle beam 1.
  • the upper part 10 with the lower part 16 is firmly and fluid-tight screwed to the screws 24.
  • the tightness is effected by the O-ring 26 which is seated in a groove 19 extending around the slot.
  • a spring projection 27 is seated in a corresponding groove in the lower part 16, and in the groove is another O-ring 28, which serves to seal the nozzle strip 17.
  • FIG. 1 shows the nozzle strip 17, which has a plurality of bores 18, wherein the bores 18 in the longitudinal direction to each other equally spaced pass through the nozzle strip 17.
  • the pressurized water from the pressure distribution chamber 13 and from the adjoining slot 19 acts on the nozzle strip 17 on the inside, and the water penetrates through the bores 18 and forms a water jet emerging from each of the bores 18. Due to the described embodiment of the nozzle bar 1, the water, which flows under pressure through the opening 12 in the closure element 22 into the pressure chamber 1 1, uniformly pass through the plurality of flow holes 14 in the intermediate wall 15 and enter the pressure distribution chamber 13.
  • baffle body 20 Due to the cylindrical design of the baffle body 20, which is received between the two closure elements 23, and centrally seated in the pressure distribution chamber 13, a further homogenization of the pressure distribution along the extension direction of the nozzle beam 1 is achieved, so that the nozzle strip 17 while maintaining a minimal pressure loss over its entire length is subjected to substantially the same pressure.
  • a plurality of spacers 29 are arranged on the baffle body 20, which are designed disk-like and center the baffle body 20 in the pressure distribution chamber 13.
  • the spacers 29 sit with their outer contour on the inside in the pressure distribution chamber 13 and are supported against the inner wall.
  • the spacers 29 can sit firmly on the rod-shaped or cylindrical impact body 20 for this purpose.
  • the advantage is achieved that when dismantling one of the closure elements 23 of the baffle 20 can be removed, for example, for cleaning purposes from the pressure distribution chamber 13.
  • the diameter of the pressure chamber 1 1 is according to the embodiment 80mm, and the diameter of the pressure distribution chamber 13 is 35mm.
  • the chambers 1 1 and 13 have over the entire length of the nozzle beam 1 across a substantially cylindrical cross-section.
  • the distance between the center axes the two pressure chambers 1 1 and 13 is 92mm. This results in an ideal length of the flow holes 14 for homogeneous as possible, over the extension of the nozzle beam 1 uniform inflow of pressurized water into the pressure distribution 13.
  • By the arrangement of the baffle 20 centric in the pressure distribution chamber 13 results in a likewise homogenized and preferably vortex low Inflow of the pressurized water in the adjoining the pressure distribution chamber 13 slot 19 so that the nozzle strip 17 is applied over its entire length substantially uniformly with water.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Nozzles (AREA)

Abstract

The present invention relates to a jet manifold (1) for water jet processing fibers, comprising an elongate upper part (10) in which an elongate pressure chamber (11) is inserted, said pressure chamber (11) having an end face with an opening (12) for feeding water and an opposite closed end face. A pressure distribution chamber (13) is inserted in the upper part (10) and extends in parallel to the pressure chamber (11). Distributed over the length of the upper part (10) a plurality of through-flow bores (14) are introduced into the intermediate wall (15) between the pressure chamber (11) and the pressure distribution chamber (13), the water being conductible therethrough from the pressure chamber (11) to the pressure distribution chamber (13). The jet manifold further comprises an elongate lower part (16) which is arranged on the upper part (10) in a fluid-tight manner, a nozzle strip (17) with bores (18) for water to exit being received in or on the lower part (16). A slot (19) is introduced into the upper part and extends between the pressure distribution chamber (13) and the nozzle strip (17) to feed water to the nozzle strip (17). According to the invention the pressure chamber (11) is cylindrical and has a circular cross-section with a diameter of 70 mm to 90 mm. The pressure distribution chamber (13) is cylindrical and has a circular cross-section with a diameter of 30 mm to 40 mm.

Description

Titel: Düsenbalken für die Bearbeitung von Fasern mit Wasserstrahlen  Title: Nozzle bar for the treatment of fibers with water jets
Die vorliegende Erfindung betrifft einen Düsenbalken für die Bearbeitung von Fasern mit Wasserstrahlen, aufweisend ein sich länglich erstreckendes Oberteil, in dem eine länglich ausgebildete Druckkammer eingebracht ist, wobei die Druckkammer eine Endseite mit einer Öffnung zur Einspeisung von Wasser und eine gegenüberliegende geschlossene Endseite aufweist, und wobei im Oberteil eine Druckverteilkammer eingebracht ist, die sich parallel zur Druckkammer erstreckt und wobei über der Länge des Oberteils verteilt mehrere Durchflussbohrungen in der Zwischenwandung zwischen der Druckkammer und der Druckverteilkammer eingebracht sind, durch die das Wasser von der Druckkammer in die Druckverteilkammer führbar ist, und aufweisend ein sich länglich erstreckendes Unterteil, das am Oberteil flüssigkeitsdicht angeordnet ist, und wobei ein Düsenstreifen mit Bohrungen für den Wasseraustritt im oder am Unterteil aufgenommen ist, und wobei im Oberteil ein Schlitz eingebracht ist, der sich zwischen der Druckverteilkammer und dem Düsenstreifen zur Wasserbeaufschlagung des Düsenstreifens erstreckt. The present invention relates to a nozzle beam for the treatment of fibers with water jets, comprising a longitudinally extending upper part, in which an elongate pressure chamber is introduced, wherein the pressure chamber has an end side with an opening for supplying water and an opposite closed end side, and wherein in the upper part of a pressure distribution chamber is introduced, which extends parallel to the pressure chamber and distributed over the length of the upper part a plurality of flow holes in the intermediate wall between the pressure chamber and the pressure distribution chamber are introduced, through which the water from the pressure chamber in the pressure distribution chamber is feasible, and comprising a longitudinally extending lower part, which is arranged liquid-tight on the upper part, and wherein a nozzle strip is received with holes for the water outlet in or on the lower part, and wherein in the upper part of a slot is introduced, the extends between the pressure distribution chamber and the nozzle strip for watering the nozzle strip.
Aus der DE 10 2005 055 939 B3 ist ein Düsenbalken für die Bearbeitung einer textilen Ware mit Wasserstrahlen bekannt. Die Bearbeitung der textilen Ware erfolgt dabei mit einer Vielzahl von in einer Reihe erzeugten Wasserstrahlen, die sich beispielsweise über die gesamte Breite einer unter den Wasserstrahlen bewegten textilen Warenbahn erstrecken und auf diese einwirken. Hierfür weist der Düsenbalken einen Wasseranschluss auf, mit dem über die Öffnung Wasser in die Druckkammer eingespeist wird. Das Wasser gelangt beispielsweise mit einem erzeugten Vordruck von 250bar durch die Öffnung in die Druckkammer, wobei die Einströmgeschwindigkeit des Wassers durch die Öffnung beispielsweise bis zu 8m/s beträgt, und etwa in der Mitte der Druckkammer weist die Strömungsgeschwindigkeit noch einen Wert von 2,5m/s auf. Um eine erhöhte Wirbelbildung des Wassers in der Druckkammer zu vermeiden, hat sich gezeigt, dass die einseitige Einspeisung von Wasser über eine Öffnung in die Druckkammer vorteilhaft ist. Der Düsenbalken ist dabei länglich und damit schlank ausgebildet, wobei der Düsenbalken im Wesentlichen gebildet wird durch das länglich ausgebildete Oberteil und das länglich ausgebildete Unterteil. Das Unterteil ist dabei an der Seite des Oberteils flüssigkeitsdicht angeordnet, die zur textilen Ware hin weist, und über das Unterteil und über den im Unterteil oder am Unterteil angeordneten Düsenstreifen werden die Wasserstrahlen durch die Vielzahl der Bohrungen erzeugt, die in dem Düsenstreifen eingebracht sind. From DE 10 2005 055 939 B3 a nozzle bar for the processing of a textile product with water jets is known. The processing of the textile goods takes place with a plurality of water jets generated in a row, which extend for example over the entire width of a moving under the water jets textile web and act on these. For this purpose, the nozzle bar on a water connection, with the water via the opening is fed into the pressure chamber. The water, for example, passes through the opening with a generated pre-pressure of 250 bar Pressure chamber, wherein the inflow velocity of the water through the opening, for example, up to 8m / s, and about in the middle of the pressure chamber, the flow rate still has a value of 2.5m / s. In order to avoid increased vortex formation of the water in the pressure chamber, it has been found that the one-sided feeding of water through an opening in the pressure chamber is advantageous. The nozzle beam is elongate and thus slender, wherein the nozzle beam is formed substantially by the elongated upper part and the elongated lower part. The lower part is arranged liquid-tight on the side of the upper part, which faces the textile product, and on the lower part and arranged in the lower part or on the lower part nozzle strips the water jets are generated by the plurality of holes which are introduced into the nozzle strip.
Um eine möglichst gleichmäßige Ausbildung der Wasserstrahlen durch die Bohrungen im Düsenstreifen zu erzeugen, ist es wünschenswert, den Druck über der großen Länge des Düsenbalkens im Wesentlichen gleich zu verteilen. Hierfür wird die Druckkammer getrennt von der Druckverteilkammer ausgebildet, und zwischen der Druckkammer und der Druckverteilkammer erstrecken sich mehrere Durchflussöffnungen in der Zwischenwandung zwischen der Druckkammer und der Druckverteilkammer. Dadurch vergleichmäßigt sich der Druck über der Breite des Düsenbalkens, sodass nicht nahe der Einströmöffnung zur Einspeisung des Wassers ein hoher Druck und auf der gegenüberliegenden, fernen Seite zur Einspeisung ein niedrigerer Druck des Wassers vor dem Düsenstreifen vorherrscht. Erst durch eine gleichmäßige Ausbildung der Wasserstrahlen über der gesamten Breite des Düsenbalkens kann eine gleichmäßige Bearbeitung der textilen Ware sichergestellt werden. Vorrangiges Ziel beim Bau derartiger Düsenbalken ist es, über die Vergleichmäßigung des Wasserdruckes innenseitig vor den Bohrungen im Düsenstreifen einen möglichst geringen Gesamt-Druckverlust zu erhalten. In Anlagen, in denen derartige Düsenstreifen Verwendung finden, stehen die Düsenbalken dauerhaft unter Wasserbeaufschlagung, sodass jeder Druckverlust im Düsenbalken zugleich einen Energieverlust beim Betrieb der Anlage mit sich bringt. Folglich ist das Ziel beim Bau von Düsenbalken neben einer gleichmäßigen Ausbildung sämtlicher Wasserstrahlen ein möglichst geringer Druckverlust beginnend von der Öffnung zur Einspeisung von Wasser in die Druckkammer bis hin zur Ausströmung des Wassers aus den Bohrungen im Düsenstreifen. In order to produce the most uniform possible formation of the water jets through the holes in the nozzle strip, it is desirable to distribute the pressure over the long length of the nozzle beam substantially equal. For this purpose, the pressure chamber is formed separately from the pressure distribution chamber, and between the pressure chamber and the pressure distribution chamber, a plurality of flow openings extend in the intermediate wall between the pressure chamber and the pressure distribution chamber. As a result, the pressure is equalized over the width of the nozzle beam, so that not near the inlet opening for supplying the water, a high pressure and on the opposite, far side for feeding a lower pressure of the water prevails in front of the nozzle strip. Only by a uniform formation of the water jets over the entire width of the nozzle beam uniform processing of the textile goods can be ensured. The primary objective in the construction of such nozzle bars is to obtain the lowest possible overall pressure loss on the equalization of the water pressure inside the holes in the nozzle strip. In systems where such nozzle strips are used, the nozzle bars are permanently under water, so that any pressure loss in the nozzle bar at the same time brings a loss of energy during operation of the system. Consequently, the goal in the construction of nozzle beam in addition to a uniform formation of all water jets as low a pressure loss, starting from the opening for feeding water into the pressure chamber to the outflow of water from the holes in the nozzle strip.
In der EP 0 725 175 B1 wird zur Vergleichmäßigung des Wasserdrucks vor den Austrittsbohrungen im Düsenstreifen der Schlitz so ausgeführt, dass eine verstärkte Verwirbelung des Wassers für eine gleichmäßige Beaufschlagung des Düsenstreifens von der Innenseite erzeugt wird, womit jedoch ein erhöhter Druckverlust einhergehen kann. In EP 0 725 175 B1, the slit is made to equalize the water pressure in front of the outlet holes in the nozzle strip so that an increased turbulence of the water for a uniform application of the nozzle strip is generated from the inside, which, however, may be accompanied by an increased pressure loss.
Weiterhin ist es wünschenswert, einen Düsenbalken möglichst konstruktiv einfach auszuführen und eine einfache Wartung zu ermöglichen. Beispielsweise müssen Düsenbalken in regelmäßigen Zeitabständen gereinigt werden, insbesondere muss der Düsenstreifen auf einfache Weise entnommen werden können. Bei einer strömungsoptimierten Ausgestaltung des Oberteils mit der Druckkammer und der Druckverteilkammer hat sich gezeigt, dass geometrische Anpassungen eine weitere Minderung des Druckverlustes ermöglichen können, sodass beispielsweise der schmale Schlitz zur Ausmündung der Druckverteilkammer an den Düsenstreifen optimiert werden kann, wie in der EP 0 725 175 B1 beschrieben. Aufgabe der Erfindung ist die weitere Verbesserung eines Düsenbalkens für die Bearbeitung von Fasern mit Wasserstrahlen, wobei der Düsenbalken einen geringen Gesamt-Druckverlust aufweisen soll, und wobei der Düsenbalken so weitergebildet werden soll, dass die über die Bohrungen im Düsenstreifen erzeugten Wasserstrahlen über der gesamten Breite des Düsenbalkens möglichst zueinander gleich ausgebildet werden sollen. Weiterhin sollte der Düsenbalken eine möglichst bauraumminimale Ausgestaltung erfahren, ohne die vorgelagerten Aufgaben der Erfindung ungelöst zu belassen. Furthermore, it is desirable to construct a nozzle bar as simple as possible and to allow easy maintenance. For example, nozzle bars must be cleaned at regular intervals, in particular, the nozzle strip must be removed in a simple manner. In a flow-optimized design of the upper part with the pressure chamber and the pressure distribution chamber has been shown that geometric adjustments can allow a further reduction of the pressure loss, so that for example the narrow slot can be optimized to the mouth of the pressure distribution on the nozzle strip, as in EP 0 725 175 B1 described. The object of the invention is the further improvement of a nozzle beam for the treatment of fibers with water jets, wherein the nozzle beam should have a low total pressure loss, and wherein the nozzle beam to be developed so that the generated over the holes in the nozzle strip water jets over the entire width of the nozzle bar as possible to be formed equal to each other. Furthermore, the nozzle bar should experience as minimal as possible space configuration, without leaving the upstream tasks of the invention unsolved.
Diese Aufgabe der Erfindung wird ausgehend von einem Düsenbalken für die Textilbearbeitung mit Wasserstrahlen gemäß dem Oberbegriff des Anspruches 1 in Verbindung mit den kennzeichnenden Merkmalen gelöst. Vorteilhafte Weiterbildungen der Erfindung sind in den abhängigen Ansprüchen angegeben. This object of the invention is achieved on the basis of a nozzle bar for textile processing with water jets according to the preamble of claim 1 in conjunction with the characterizing features. Advantageous developments of the invention are specified in the dependent claims.
Die Erfindung schließt die technische Lehre ein, dass die Druckkammer zylindrisch ausgeführt ist und einen Kreisquerschnitt mit einem Durchmesser von 70mm bis 90mm aufweist und dass die Druckverteilkammer zylindrisch ausgeführt ist und einen Kreisquerschnitt mit einem Durchmesser von 30mm bis 40mm aufweist. The invention includes the technical teaching that the pressure chamber is cylindrical and has a circular cross section with a diameter of 70mm to 90mm and that the pressure distribution chamber is cylindrical and has a circular cross section with a diameter of 30mm to 40mm.
Die der Ausgestaltung des Düsenbalkens mit der Druckkammer und der Druckverteilkammer mit entsprechenden Durchmessern eines Kreisquerschnitts ergibt einen überraschend positiven Effekt auf die Vergleichmäßigung des Austrittsdruckes über den Schlitz in Richtung zum Düsenstreifen bei einem zugleich geringen Gesamt-Druckverlust im Düsenbalken. Der Düsenbalken ist dabei insbesondere ausgelegt für die Einspeisung von Wasser mit einer Geschwindigkeit bis zu etwa 8m/s bei einem Vordruck von 250bar. Durch die Größenverhältnisse der Druckkammer und der Druckverteilkammer ergibt sich eine vorteilhafte Uberströmung des Wassers durch die Durchflussbohrungen in der Zwischenwandung von beispielsweise bis zu 1 1 m/s. The design of the nozzle bar with the pressure chamber and the pressure distribution chamber with corresponding diameters of a circular cross section results in a surprisingly positive effect on the equalization of the outlet pressure across the slot in the direction of the nozzle strip at a simultaneously low total pressure drop in the nozzle bar. The nozzle bar is in particular designed for the feeding of water at a speed of up to about 8 m / s at a pre-pressure of 250 bar. The size ratios of the pressure chamber and the pressure distribution chamber results in an advantageous Overflow of water through the flow holes in the intermediate wall of, for example, up to 1 1 m / s.
Dann, wenn die Druckkammer und/oder die Druckverteilkammer mit einem jeweils zu großen oder zu kleinen Durchmesser ausgeführt werden, ergeben sich entweder Totwasserbereiche, die eine Inhomogenität der Druckverteilung erzeugen, oder es entstehen Druckgradienten über den Durchflussbohrungen in der Zwischenwandung beginnend von der Endseite des Oberteils mit der Öffnung bis hin zur gegenüberliegenden Endseite ohne die Öffnung zur Einspeisung von Wasser. Bei einem optimierten Verhältnis der Durchmesser der Druckkammer zur Druckverteilkammer mit einem Durchmesser der Druckkammer von 70mm bis 90mm im Verhältnis zum Durchmesser der Druckverteilkammer von 30mm bis 40mm werden derartige negative Einflüsse auf die Druckverteilung und den Gesamt-Druckverlust minimiert. Then, when the pressure chamber and / or the Druckverteilkammer be performed with a too large or too small diameter, either Totwasserbereiche that produce an inhomogeneity of the pressure distribution, or arise pressure gradients over the flow holes in the intermediate wall starting from the end side of the upper part with the opening to the opposite end side without the opening for feeding water. With an optimized ratio of the diameter of the pressure chamber to the pressure distribution chamber with a diameter of the pressure chamber of 70mm to 90mm in relation to the diameter of the pressure distribution chamber of 30mm to 40mm such negative influences on the pressure distribution and the total pressure loss are minimized.
Besonders vorteilhaft ist es, wenn die Druckkammer einen Durchmesser von 75mm bis 85mm aufweist und wenn die Druckverteilkammer einen Durchmesser von 33 bis 37mm aufweist. Darüber hinaus konnte festgestellt werden, dass es noch vorteilhafter ist, wenn die Druckkammer einen Durchmesser von 80mm aufweist und die Druckverteilkammer einen Durchmesser von 35mm aufweist. Im Ergebnis ergibt sich ein besonders minimaler Gesamt-Druckverlust, wenn der Durchmesser der Druckverteilkammer etwas weniger als die Hälfte von dem Durchmesser der Druckkammer beträgt. It is particularly advantageous if the pressure chamber has a diameter of 75 mm to 85 mm and if the pressure distribution chamber has a diameter of 33 to 37 mm. In addition, it has been found that it is even more advantageous if the pressure chamber has a diameter of 80 mm and the pressure distribution chamber has a diameter of 35 mm. The result is a particularly minimal total pressure loss when the diameter of the pressure distribution chamber is slightly less than half of the diameter of the pressure chamber.
Ein weiterer wesentlicher Einfluss ist festgestellt worden durch die Länge der Durchflussbohrungen in der Zwischenwandung zwischen der Druckkammer und der Druckverteilkammer. Folglich hat auch der Abstand der Mittelachse der Druckkammer zur Mittelachse der Druckverteilkammer einen Einfluss auf den Gesamt-Druckverlust im Düsenbalken und auf die möglichst homogene Druckverteilung des Wassers innenseitig vor den Bohrungen über der Länge des Düsenstreifens. Besonders vorteilhaft ist ein Abstand zwischen der Mittelachse der Druckkannnner und der Mittelachse der Druckverteilkannnner von 80mm bis 100mm, vorzugsweise von 85mm bis 95mm und besonders bevorzugt von 92mm. Folgerichtig ergibt sich eine Länge der Durchflussbohrungen von 34,5mm. Dabei können die Durchflussbohrungen mit weiterem Vorteil gestuft ausgeführt sein, und die Mündung der Durchflussbohrungen in die Druckkammer weist einen kleineren Durchmesser auf als die Mündung der Durchflussbohrungen in die Druckverteilkammer. Another significant influence has been found by the length of the flow holes in the intermediate wall between the pressure chamber and the pressure distribution chamber. Consequently, the distance between the center axis of the pressure chamber to the central axis of the pressure distribution chamber has an influence on the total pressure drop in the nozzle beam and on the most homogeneous pressure distribution of the water inside the front Holes over the length of the nozzle strip. Particularly advantageous is a distance between the center axis of the pressure can and the center axis of the Druckverteilkannnner of 80mm to 100mm, preferably from 85mm to 95mm and more preferably 92mm. Consequently, the length of the flow holes is 34.5mm. In this case, the through-flow bores can be designed with further advantage stepped, and the mouth of the flow holes in the pressure chamber has a smaller diameter than the mouth of the flow holes in the pressure distribution chamber.
Mit weiterem Vorteil ist ein Prallkörper vorgesehen, der zylindrisch in der Druckverteilkammer angeordnet ist, wobei der Prallkörper eine längliche Zylinderform aufweist und einen Durchmesser von 20mm bis 25mm und/oder einen Durchmesser von 22,5mm aufweist. Mit besonderem Vorteil ist der Prallkörper an seinen Enden seiner länglichen Zylinderform aufgenommen und/oder der Prallkörper weist über seiner Länge verteilt Abstandshalter auf, mittels der der Prallkörper in der Druckverteilkammer mittig angeordnet gehalten ist. Wie vorstehend angegeben, ergeben sich besonders vorteilhafte Strömungsverhältnisse in der Druckverteilkammer, wenn der Prallkörper zentrisch in der Druckverteilkammer angeordnet ist. Mit anderen Worten bildet der Prallkörper vollumfänglich einen gleichen Abstand zur Wandung der Druckverteilkammer, sodass der Durchflussquerschnitt des Wassers von den Durchflussbohrungen bis in den Schlitz hinein um den Prallkörper im Wesentlichen gleichbleibend ausgebildet ist. Dabei konnte festgestellt werden, dass bei einer solchen Ausgestaltung des Prallkörpers und seiner Anordnung in der Druckverteilkammer eine nur minimale bis gar keine Wirbelbildung entsteht. Folgerichtig ist auch der Druckverlust bei einer möglichst optimalen Druckverteilung über der Länge des Düsenbalkens minimiert. With further advantage, an impact body is provided, which is arranged cylindrical in the pressure distribution chamber, wherein the impact body has an elongated cylindrical shape and has a diameter of 20mm to 25mm and / or a diameter of 22.5mm. With particular advantage, the baffle body is received at its ends of its elongated cylindrical shape and / or the baffle body has distributed over its length spacers, by means of which the baffle body is held centrally arranged in the pressure distribution chamber. As indicated above, particularly advantageous flow conditions in the pressure distribution chamber result when the impact body is arranged centrally in the pressure distribution chamber. In other words, the baffle body completely equidistant from the wall of the pressure distribution chamber, so that the flow cross section of the water from the flow holes into the slot around the baffle body is formed substantially constant. It has been found that with such a design of the impact body and its arrangement in the pressure distribution chamber, only minimal or no vortex formation occurs. Consequently, the pressure loss is minimized with the best possible pressure distribution over the length of the nozzle beam.
Ein weiterer Vorteil wird erreicht, wenn die Druckkammer im Oberteil an wenigstens einer ihrer Endseiten des Oberteils mit einem Verschlusselement verschlossen ist, und wobei ein Verschlusselement die Öffnung für die Wassereinspeisung in die Druckkammer aufweist. Dabei ist es auch denkbar, dass die Druckkammer auf der dem Verschlusselement mit der Öffnung gegenüberliegenden Seite durch das Material des Oberteils verschlossen ist. Aus fertigungstechnischen Gründen ist es jedoch vorteilhaft, wenn das Oberteil über seiner gesamten Länge einen im Wesentlichen gleichen Materialquerschnitt aufweist. Another advantage is achieved if the pressure chamber in the upper part at least one of its end sides of the upper part with a Closing element is closed, and wherein a closure element has the opening for the water feed into the pressure chamber. It is also conceivable that the pressure chamber is closed on the opposite side of the closure element with the opening by the material of the upper part. For manufacturing reasons, however, it is advantageous if the upper part over its entire length has a substantially same cross-section material.
Weiterhin ist es vorteilhaft, wenn auch die Druckverteilkammer im Oberteil an ihren gegenüberliegenden Endseiten des Oberteils mit Verschlusselementen verschlossen ist. Mit besonderem Vorteil kann dabei der Prallkörper mit seinen Enden zwischen den Verschlusselementen aufgenommen werden. Muss der Prallkörper beispielsweise zu Reinigungszwecken der Druckverteilkammer aus dieser herausgenommen werden, so ist es bereits hinreichend, eines der beiden Verschlusselemente von den Endseiten des Oberteils zu lösen. Furthermore, it is advantageous if the pressure distribution chamber is closed in the upper part at its opposite end sides of the upper part with closure elements. With particular advantage, the impact body can be received with its ends between the closure elements. If the baffle body has to be removed from it, for example, for cleaning purposes of the pressure distribution chamber, then it is already sufficient to release one of the two closure elements from the end sides of the upper part.
Weitere, die Erfindung verbessernde Maßnahmen werden nachstehend gemeinsam mit der Beschreibung eines bevorzugten Ausführungsbeispiels der Erfindung anhand der Figuren näher dargestellt. Es zeigen: Further, measures improving the invention will be described in more detail below together with the description of a preferred embodiment of the invention with reference to FIGS. Show it:
Fig. 1 eine Querschnittsansicht durch einen Düsenbalken für die 1 is a cross-sectional view through a nozzle bar for the
Bearbeitung einer textilen Ware mit Wasserstrahlen, wobei der Querschnitt längs durch den Düsenbalken verläuft und  Processing of a textile product with water jets, wherein the cross-section extends longitudinally through the nozzle bar and
Fig. 2 eine Querschnittsansicht durch den Düsenbalken gemäß Fig. 2 is a cross-sectional view through the nozzle bar according to
Figur 1 entlang der dargestellten Schnittlinie A-A.  Figure 1 along the illustrated section line A-A.
Figur 1 zeigt eine Querschnittsansicht durch einen Düsenbalken 1 für die Bearbeitung von Fasern mit Wasserstrahlen, und Figur 2 zeigt entlang der Schnittlinie A-A eine Querschnittsansicht durch den Düsenbalken 1 , wobei die Schnittebene A-A quer zur Schnittebene durch den Düsenbalken 1 gemäß Figur 1 verläuft. Im Folgenden wird der Düsenbalken 1 in Zusammenschau der Figuren 1 und 2 näher beschrieben. Figure 1 shows a cross-sectional view through a nozzle beam 1 for the treatment of fibers with water jets, and Figure 2 shows along the section line A-A is a cross-sectional view through the nozzle bar 1, wherein the sectional plane A-A transverse to the sectional plane through the nozzle bar 1 of Figure 1. In the following, the nozzle bar 1 is described in more detail in conjunction with FIGS. 1 and 2.
Das Gehäuse des Düsenbalkens 1 weist ein Oberteil 10 auf, das mit dem Unterteil 16 vielfach über die Länge durch Schrauben 24 verschraubt ist. Das Oberteil 10 weist in Längsrichtung verlaufend zwei Bohrungen 1 1 und 13 auf, von denen die obere Bohrung eine Druckkammer 1 1 und die untere Bohrung eine Druckverteilkammer 13 bildet. Beide Kammern 1 1 und 13 sind an den Endseiten des Oberteils 10 offen ausgeführt und durch Verschlusselemente 22 für die Druckkammer 1 1 und durch Verschlusselemente 23 für die Druckverteilkammer 13 flüssigkeitsdicht verschlossen. Das Verschlusselement 22 zum Verschluss der Druckkammer 1 1 weist ein Druckmessmittel 25 auf, und das Verschlusselement 22 zum Verschluss der Druckkammer 1 1 auf der rechten Seite weist eine Öffnung 12 auf, über die mit einem nicht näher dargestellten Wasseranschluss Wasser in die Druckkammer 1 1 eingespeist werden kann. The housing of the nozzle beam 1 has an upper part 10, which is screwed to the lower part 16 over the length of many times by screws 24. The upper part 10 has two holes 1 1 and 13 extending in the longitudinal direction, of which the upper bore forms a pressure chamber 1 1 and the lower bore forms a pressure distribution chamber 13. Both chambers 1 1 and 13 are made open at the end sides of the upper part 10 and liquid-tightly closed by closure elements 22 for the pressure chamber 1 1 and by closing elements 23 for the pressure distribution chamber 13. The closure element 22 for closing the pressure chamber 1 1 has a pressure measuring means 25, and the closure element 22 for closing the pressure chamber 1 1 on the right side has an opening 12, over which with a not closer Water shown in the water pressure chamber 1 1 can be fed.
Die beiden Kammern 1 1 und 13 sind durch eine Zwischenwandung 15 voneinander getrennt, wobei die Zwischenwandung 15 durch einen Querschnittsbereich des Oberteils 10 gebildet ist. Über die Länge des Düsenbalkens 1 verbindet eine große Anzahl von Durchflussbohrungen 14 in der Zwischenwandung 15 die beiden Kammern 1 1 und 13, sodass in die Druckkammer 1 1 einströmendes Wasser gleichmäßig verteilt über die Länge des Düsenbalkens 1 in die Druckverteilkammer 13 überströmt. Die Druckverteilkammer 13 ist nach unten offen, und zwar durch den gegenüber dem Durchmesser der Bohrung der Druckverteilkammer 13 schmal ausgeführten Schlitz 19, der sich ebenfalls über die Länge des Düsenbalkens 1 erstreckt. The two chambers 1 1 and 13 are separated by an intermediate wall 15, wherein the intermediate wall 15 is formed by a cross-sectional area of the upper part 10. Over the length of the nozzle bar 1 connects a large number of flow holes 14 in the intermediate wall 15, the two chambers 1 1 and 13, so that in the pressure chamber 1 1 inflowing water flows evenly distributed over the length of the nozzle beam 1 in the pressure distribution chamber 13. The pressure distribution chamber 13 is open at the bottom, through the narrow compared to the diameter of the bore of the pressure distribution chamber 13 slot 19, which also extends over the length of the nozzle beam 1.
Gemäß Figur 2 ist das Oberteil 10 mit dem Unterteil 16 fest und flüssigkeitsdicht mit den Schrauben 24 verschraubt. Die Dichtigkeit wird durch den O-Ring 26 bewirkt, der in einer um den Schlitz 19 verlaufenden Nut einsitzt. Ein Federvorsprung 27 sitzt in einer korrespondierenden Nut im Unterteil 16 ein, und in der Nut befindet sich ein weiterer O-Ring 28, der zur Abdichtung des Düsenstreifens 17 dient. According to Figure 2, the upper part 10 with the lower part 16 is firmly and fluid-tight screwed to the screws 24. The tightness is effected by the O-ring 26 which is seated in a groove 19 extending around the slot. A spring projection 27 is seated in a corresponding groove in the lower part 16, and in the groove is another O-ring 28, which serves to seal the nozzle strip 17.
Die Querschnittsansicht in Figur 1 zeigt den Düsenstreifen 17, der eine Vielzahl von Bohrungen 18 aufweist, wobei die Bohrungen 18 in Längsrichtung zueinander gleich beabstandet den Düsenstreifen 17 durchsetzen. Das unter Druck stehende Wasser aus der Druckverteilkammer 13 und aus dem sich anschließenden Schlitz 19 beaufschlagt den Düsenstreifen 17 innenseitig, und das Wasser dringt durch die Bohrungen 18 hindurch und bildet einen aus jeder der Bohrungen 18 austretenden Wasserstrahl. Durch die beschriebene Ausgestaltung des Düsenbalkens 1 kann das Wasser, das unter Druck stehend durch die Öffnung 12 im Verschlusselement 22 in die Druckkammer 1 1 einströmt, gleichverteilt durch die Vielzahl der Durchflussbohrungen 14 in der Zwischenwandung 15 hindurchtreten und in die Druckverteilkammer 13 gelangen. Durch die zylindrische Ausbildung des Prallkörpers 20, der zwischen den beiden Verschlusselementen 23 haltend aufgenommen ist, und der zentrisch in der Druckverteilkammer 13 einsitzt, wird eine weitere Homogenisierung der Druckverteilung entlang der Erstreckungsrichtung des Düsenbalkens 1 erreicht, sodass der Düsenstreifen 17 unter Beibehaltung eines minimalen Druckverlustes über seiner gesamten Länge im Wesentlichen mit dem gleichen Druck beaufschlagt wird. Über der Länge des Prallkörpers 20 verteilt sind mehrere Abstandshalter 29 am Prallkörper 20 angeordnet, die scheibenartig ausgestaltet sind und den Prallkörper 20 in der Druckverteilkammer 13 zentrieren. Dafür sitzen die Abstandshalter 29 mit ihrer Außenkontur innenseitig in der Druckverteilkammer 13 ein und stützen sich so gegen die Innenwand ab. Die Abstandshalter 29 können dafür fest auf dem stabförmigen oder zylinderförmigen Prallkörper 20 aufsitzen. Im Ergebnis ergeben sich bei einem Hindurchtreten des Wassers durch die Vielzahl der Bohrungen 18 gleichmäßige Wasserstrahlen, sodass die Bearbeitung der textilen Ware über der gesamten Breite der Ware gleichmäßig erfolgen kann. Auch wird der Vorteil erreicht, dass bei einer Demontage eines der Verschlusselemente 23 der Prallkörper 20 beispielsweise zu Reinigungszwecken aus der Druckverteilkammer 13 entnommen werden kann. The cross-sectional view in Figure 1 shows the nozzle strip 17, which has a plurality of bores 18, wherein the bores 18 in the longitudinal direction to each other equally spaced pass through the nozzle strip 17. The pressurized water from the pressure distribution chamber 13 and from the adjoining slot 19 acts on the nozzle strip 17 on the inside, and the water penetrates through the bores 18 and forms a water jet emerging from each of the bores 18. Due to the described embodiment of the nozzle bar 1, the water, which flows under pressure through the opening 12 in the closure element 22 into the pressure chamber 1 1, uniformly pass through the plurality of flow holes 14 in the intermediate wall 15 and enter the pressure distribution chamber 13. Due to the cylindrical design of the baffle body 20, which is received between the two closure elements 23, and centrally seated in the pressure distribution chamber 13, a further homogenization of the pressure distribution along the extension direction of the nozzle beam 1 is achieved, so that the nozzle strip 17 while maintaining a minimal pressure loss over its entire length is subjected to substantially the same pressure. Distributed over the length of the baffle 20 a plurality of spacers 29 are arranged on the baffle body 20, which are designed disk-like and center the baffle body 20 in the pressure distribution chamber 13. For this, the spacers 29 sit with their outer contour on the inside in the pressure distribution chamber 13 and are supported against the inner wall. The spacers 29 can sit firmly on the rod-shaped or cylindrical impact body 20 for this purpose. As a result, resulting in a passage of the water through the plurality of holes 18 uniform water jets, so that the processing of the textile goods over the entire width of the goods can be made uniform. Also, the advantage is achieved that when dismantling one of the closure elements 23 of the baffle 20 can be removed, for example, for cleaning purposes from the pressure distribution chamber 13.
Der Durchmesser der Druckkammer 1 1 beträgt gemäß dem Ausführungsbeispiel 80mm, und der Durchmesser der Druckverteilkammer 13 beträgt 35mm. Die Kammern 1 1 und 13 weisen dabei über der gesamten Länge des Düsenbalken 1 hinweg einen im Wesentlichen zylindrischen Querschnitt auf. Der Abstand der Mittelachsen der beiden Druckkammern 1 1 und 13 beträgt 92mm. Dadurch ergibt sich eine ideale Länge der Durchflussbohrungen 14 zur möglichst homogenen, über der Erstreckung des Düsenbalkens 1 gleichmäßigen Einströmung des unter Druck stehenden Wassers in die Druckverteilkammer 13. Durch die Anordnung des Prallkörpers 20 zentrisch in der Druckverteilkammer 13 ergibt sich eine ebenfalls homogenisierte und vorzugsweise verwirbelungsarme Einströmung des unter Druck stehenden Wassers in den sich an die Druckverteilkammer 13 anschließenden Schlitz 19, sodass der Düsenstreifen 17 über seiner gesamten Länge im Wesentlichen gleichmäßig mit Wasser beaufschlagt wird. The diameter of the pressure chamber 1 1 is according to the embodiment 80mm, and the diameter of the pressure distribution chamber 13 is 35mm. The chambers 1 1 and 13 have over the entire length of the nozzle beam 1 across a substantially cylindrical cross-section. The distance between the center axes the two pressure chambers 1 1 and 13 is 92mm. This results in an ideal length of the flow holes 14 for homogeneous as possible, over the extension of the nozzle beam 1 uniform inflow of pressurized water into the pressure distribution 13. By the arrangement of the baffle 20 centric in the pressure distribution chamber 13 results in a likewise homogenized and preferably vortex low Inflow of the pressurized water in the adjoining the pressure distribution chamber 13 slot 19 so that the nozzle strip 17 is applied over its entire length substantially uniformly with water.
Die Erfindung beschränkt sich in ihrer Ausführung nicht auf das vorstehend angegebene bevorzugte Ausführungsbeispiel. Vielmehr ist eine Anzahl von Varianten denkbar, welche von der dargestellten Lösung auch bei grundsätzlich anders gearteten Ausführungen Gebrauch macht. Sämtliche aus den Ansprüchen, der Beschreibung oder den Zeichnungen hervorgehenden Merkmale und/oder Vorteile, einschließlich konstruktiver Einzelheiten oder räumlicher Anordnungen, können sowohl für sich als auch in den verschiedensten Kombinationen erfindungswesentlich sein. The invention is not limited in its execution to the above-mentioned preferred embodiment. Rather, a number of variants is conceivable, which makes use of the illustrated solution even with fundamentally different types of use. All of the claims, the description or the drawings resulting features and / or advantages, including structural details or spatial arrangements may be essential to the invention both in itself and in various combinations.
Bezugszeichen reference numeral
I Düsenbalken I nozzle bar
10 Oberteil 10 shell
I I Druckkammer I I pressure chamber
12 Öffnung 12 opening
13 Druckverteilkammer 13 pressure distribution chamber
14 Durchflussbohrung14 flow bore
15 Zwischenwandung15 intermediate wall
16 Unterteil 16 lower part
17 Düsenstreifen 17 jet strips
18 Bohrung 18 hole
19 Schlitz  19 slot
20 Prallkörper  20 baffles
21 Ende  21 end
22 Verschlusselement 22 closure element
23 Verschlusselement23 closure element
24 Schraube 24 screw
25 Druckmessmittel 25 pressure measuring means
26 O-Ring 26 O-ring
27 Federvorsprung 27 spring projection
28 O-Ring 28 O-ring
29 Abstandshalter  29 spacers

Claims

Patentansprüche claims
1 . Düsenbalken (1 ) für die Bearbeitung von Fasern mit Wasserstrahlen, aufweisend ein sich länglich erstreckendes Oberteil (10), in dem eine länglich ausgebildete Druckkammer (1 1 ) eingebracht ist, wobei die Druckkammer (1 1 ) eine Endseite mit einer Öffnung (12) zur Einspeisung von Wasser und eine gegenüberliegende geschlossene Endseite aufweist, und wobei im Oberteil (10) eine Druckverteilkammer (13) eingebracht ist, die sich parallel zur Druckkammer (1 1 ) erstreckt und wobei über der Länge des Oberteils (10) verteilt mehrere Durchflussbohrungen (14) in der Zwischenwandung (15) zwischen der Druckkammer (1 1 ) und der Druckverteil kammer (13) eingebracht sind, durch die das Wasser von der Druckkammer (1 1 ) in die Druckverteilkammer (13) führbar ist, und aufweisend ein sich länglich erstreckendes Unterteil (16), das am Oberteil (10) flüssigkeitsdicht angeordnet ist, und wobei ein Düsenstreifen (17) mit Bohrungen (18) für den Wasseraustritt im oder am Unterteil (16) aufgenommen ist, und wobei im Oberteil ein Schlitz (19) eingebracht ist, der sich zwischen der Druckverteilkammer (13) und dem Düsenstreifen (17) zur Wasserbeaufschlagung des Düsenstreifens (17) erstreckt, 1 . Jet beam (1) for the treatment of fibers with water jets, comprising a longitudinally extending upper part (10) in which an elongated pressure chamber (1 1) is introduced, wherein the pressure chamber (1 1) has an end side with an opening (12) for supplying water and an opposite closed end side, and wherein in the upper part (10) a pressure distribution chamber (13) is introduced, which extends parallel to the pressure chamber (1 1) and wherein over the length of the upper part (10) distributed multiple flow holes ( 14) in the intermediate wall (15) between the pressure chamber (1 1) and the pressure distribution chamber (13) are introduced, through which the water from the pressure chamber (1 1) in the pressure distribution chamber (13) can be guided, and having an elongated extending lower part (16) which is liquid-tightly arranged on the upper part (10), and wherein a nozzle strip (17) with holes (18) aufgeno for the water outlet in or on the lower part (16) and in which a slot (19) is inserted in the upper part, which extends between the pressure distribution chamber (13) and the nozzle strip (17) for applying water to the nozzle strip (17),
dadurch gekennzeichnet, dass  characterized in that
die Druckkammer (1 1 ) zylindrisch ausgeführt ist und einen Kreisquerschnitt mit einem Durchmesser von 70mm bis 90mm aufweist und dass  the pressure chamber (1 1) is cylindrical and has a circular cross-section with a diameter of 70mm to 90mm and that
die Druckverteilkammer (13) zylindrisch ausgeführt ist und einen Kreisquerschnitt mit einem Durchmesser von 30mm bis 40mm aufweist. the pressure distribution chamber (13) is cylindrical and has a circular cross section with a diameter of 30mm to 40mm.
2. Düsenbalken (1 ) nach Anspruch 1 , dadurch gekennzeichnet, dass die Druckkammer (1 1 ) einen Durchmesser von 75mm bis 85mm aufweist und dass die Druckverteilkammer (13) einen Durchmesser von 33mm bis 37mm aufweist. 2. nozzle beam (1) according to claim 1, characterized in that the pressure chamber (1 1) has a diameter of 75mm to 85mm and that the pressure distribution chamber (13) has a diameter of 33mm to 37mm.
3. Düsenbalken (1 ) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Druckkammer (1 1 ) einen Durchmesser von 80mm aufweist und dass die Druckverteilkammer (13) einen Durchmesser von 35mm aufweist. 3. Nozzle bar (1) according to claim 1 or 2, characterized in that the pressure chamber (1 1) has a diameter of 80mm and that the pressure distribution chamber (13) has a diameter of 35mm.
4. Düsenbalken (1 ) nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der Abstand zwischen der Mittelachse der Druckkammer (1 1 ) und der Mittelachse der Druckverteilkammer (13) einen Wert von 80mm bis 100mm aufweist. 4. nozzle bar (1) according to one of claims 1 to 3, characterized in that the distance between the central axis of the pressure chamber (1 1) and the central axis of the pressure distribution chamber (13) has a value of 80mm to 100mm.
5. Düsenbalken (1 ) nach einem der vorgenannten Ansprüche, dadurch gekennzeichnet, dass der Abstand zwischen der Mittelachse der Druckkammer (1 1 ) und der Mittelachse der Druckverteilkammer (13) einen Wert von 85mm bis 95mm aufweist. 5. nozzle bar (1) according to one of the preceding claims, characterized in that the distance between the central axis of the pressure chamber (1 1) and the central axis of the pressure distribution chamber (13) has a value of 85mm to 95mm.
6. Düsenbalken (1 ) nach einem der vorgenannten Ansprüche, dadurch gekennzeichnet, dass der Abstand zwischen der Mittelachse der Druckkammer (1 1 ) und der Mittelachse der Druckverteilkammer (13) einen Wert von 92mm aufweist. 6. nozzle bar (1) according to any one of the preceding claims, characterized in that the distance between the central axis of the pressure chamber (1 1) and the central axis of the pressure distribution chamber (13) has a value of 92mm.
7. Düsenbalken (1 ) nach einem der vorgenannten Ansprüche, dadurch gekennzeichnet, dass ein Prallkörper (20) vorgesehen ist, der zentrisch in der Druckverteilkammer (13) angeordnet ist, wobei der Prallkörper (10) eine längliche Zylinderform aufweist und einen Durchmesser von 20mm bis 25mm und/oder einen Durchmesser von7. nozzle beam (1) according to any one of the preceding claims, characterized in that an impact body (20) is provided, which is arranged centrally in the pressure distribution chamber (13), wherein the impact body (10) has an elongated cylindrical shape and a diameter of 20mm up to 25mm and / or a diameter of
22,5mm aufweist. 22.5mm.
8. Düsenbalken (1 ) nach Anspruch 7, dadurch gekennzeichnet, dass der Prallkörper (20) an seinen Enden (21 ) seiner länglichen Zylinderfornn aufgenonnnnen ist, und/oder dass der Prallkörper (20)8. Nozzle bar (1) according to claim 7, characterized in that the impact body (20) is aufgenonnnnen at its ends (21) of its elongated Zylinderfornn, and / or that the impact body (20)
5 über seiner Länge verteilt Abstandshalter (29) aufweist, mittels der der Prallkörper (20) in der Druckverteilkammer (13) mittig angeordnet gehalten ist. 5 distributed over its length spacer (29), by means of which the baffle (20) in the pressure distribution chamber (13) is arranged centrally arranged.
9. Düsenbalken (1 ) nach einem der vorgenannten Ansprüche, dadurch i o gekennzeichnet, dass die Druckkammer (1 1 ) im Oberteil (10) an wenigstens einer ihrer Endseiten des Oberteils (10) mit einem Verschlusselement (22) verschlossen ist, wobei ein Verschlusselement (22) die Öffnung (12) für die Wassereinspeisung in die Druckkammer (1 1 ) aufweist. 9. nozzle bar (1) according to any one of the preceding claims, characterized io characterized in that the pressure chamber (1 1) in the upper part (10) on at least one of its end sides of the upper part (10) with a closure element (22) is closed, wherein a closure element (22) has the opening (12) for the water feed into the pressure chamber (1 1).
15  15
10. Düsenbalken (1 ) nach einem der Ansprüche 8 oder 9, dadurch gekennzeichnet, dass die Druckverteilkammer (13) im Oberteil (10) an ihren gegenüberliegenden Endseiten des Oberteils (10) mit Verschlusselementen (23) verschlossen ist, wobei der Prallkörper 10. nozzle bar (1) according to any one of claims 8 or 9, characterized in that the pressure distribution chamber (13) in the upper part (10) at its opposite end sides of the upper part (10) with closure elements (23) is closed, wherein the impact body
20 (20) mit seinen Enden (21 ) zwischen den Verschlusselementen (23) aufgenommen ist. 20 (20) is received with its ends (21) between the closure elements (23).
25 25
30 30
EP17764384.8A 2016-10-12 2017-09-07 Jet manifold for water jet processing fibers Active EP3526382B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016119480.8A DE102016119480A1 (en) 2016-10-12 2016-10-12 Nozzle bar for processing fibers with water jets
PCT/EP2017/072429 WO2018068951A1 (en) 2016-10-12 2017-09-07 Jet manifold for water jet processing fibers

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EP3526382A1 true EP3526382A1 (en) 2019-08-21
EP3526382B1 EP3526382B1 (en) 2020-08-19

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CN (1) CN109844204B (en)
DE (1) DE102016119480A1 (en)
WO (1) WO2018068951A1 (en)

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DE102016119481A1 (en) * 2016-10-12 2018-04-12 TRüTZSCHLER GMBH & CO. KG Nozzle bar for processing fibers with water jets

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CN109844204A (en) 2019-06-04
DE102016119480A1 (en) 2018-04-12
JP2019530810A (en) 2019-10-24
WO2018068951A1 (en) 2018-04-19
EP3526382B1 (en) 2020-08-19

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