EP0801695A1 - Breitstrahldüse - Google Patents
BreitstrahldüseInfo
- Publication number
- EP0801695A1 EP0801695A1 EP96900510A EP96900510A EP0801695A1 EP 0801695 A1 EP0801695 A1 EP 0801695A1 EP 96900510 A EP96900510 A EP 96900510A EP 96900510 A EP96900510 A EP 96900510A EP 0801695 A1 EP0801695 A1 EP 0801695A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- plane
- jet nozzle
- feed pipe
- wide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
- D06B1/02—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by spraying or projecting
Definitions
- the invention relates to a wide jet nozzle of the type corresponding to the preamble of claim 1.
- a wide jet nozzle results from DE 25 04 856 C 3, in which the fluid medium, for example washing water for textile webs, is supplied from one end in the direction of the longitudinal direction of the housing of the wide jet nozzle.
- the housing tapers from the feed end towards the opposite end, so that the flow cross section is reduced and the pressure remains reasonably constant over the width of the jet. Nevertheless, one-sidedness of the jet is not easy to avoid in this embodiment. This one-sidedness means a force attack on the material web acting in the lateral direction, which usually has to be avoided.
- DE 23 34 99 & A 1 combines two wide jet nozzles of this type, each of which extends from the center of the web to an edge of the web and in which the fluid medium is fed in via a center which opens into the center Longitudinal direction of the housing of the two wide jet nozzles extending feed pipe takes place.
- This embodiment is complex and has constructive disadvantages which are related to the need to supply the fluid medium from both sides.
- the invention has for its object to design a generic wide jet nozzle so that it does not work on one side and the supply of the fluid medium is associated with less construction and space requirements.
- the individual feed pipe opens into the wide jet nozzle from above or below, so that the one-sidedness is suppressed from the feed direction.
- the supply takes place only at one point in the middle of the wide jet nozzle, care is taken to ensure that the multiple pressure causes the outlet pressure to be equalized while avoiding a preference for the surroundings of the center.
- the feed pipe can open into a specially provided bulge in the housing (claim 3).
- liquid is intended to encompass treatment liquids of any kind, i.e. in addition to pure water, e.g. also dyeing liquid, wetting agent fleets and other finishing liquids.
- FIG. 1 shows a view of the wide jet nozzle according to FIG. 3 from the right;
- FIG. 2 shows a view of the broad jet nozzle according to FIG. 1 from the left;
- Fig. 3 shows a section along the line III-III in Figure 1 in a greatly enlarged scale.
- FIG. 4 and 5 show cross sections along the lines IV-IV and V-V in Fig. 1 on a less enlarged scale.
- the broad jet nozzle denoted as a whole in FIG. 1 comprises an elongated housing 10 made of bent and welded sheet metal, which is closed except for an outlet slot 30 extending over the length of the housing 10 and a feed opening 2 and one Rectangular cross section with an upper boundary wall 5 according to FIG. 3, a lower boundary wall 6 and a right and left boundary wall 4, 9.
- the housing 10 is formed symmetrically to a central plane M running through the center of the feed opening 2 and perpendicular to the longitudinal direction of the housing. From Fig. 1 it can be seen that the cross section of the housing 10 decreases from the central plane M to the two ends in order to compensate for the pressure drop in the flowing liquor.
- the housing 10 has a bulge 20 which projects symmetrically to the central plane M towards the side facing away from the outlet slot 30, in the area of which the feed pipe 3 at the feed opening 2 into the interior of the bulge 20 or of the housing 10 opens.
- the junction is perpendicular to the exit jet plane, which is located in FIG. 1 parallel to the plane of the drawing.
- the feed pipe 3 comprises a 90 "pipe elbow 3 'opening into the feed opening 2, from which the feed pipe 3 continues straight laterally and has a connecting flange 19 at its end outside the working width.
- the housing 10 and the feed pipe 3 are connected to one another by a web 17.
- the housing 10 and the bulge 20 have approximately rectangular cross sections rather width.
- the plan of the bulge 20 in the plane of FIG. 1 is that of a trapezoid arranged symmetrically to the central plane M.
- the feed opening 2 is located in the common boundary wall 4 of the housing 10 and the bulge 20.
- the cross-section of the feed opening 2 is for the most part in the region of the bulge 20 and only to a lesser extent in the region of the housing 10 to accommodate the large cross section of the feed pipe 3 shown in FIG. 3.
- the upper boundary wall 5 of the housing 10 is cut away in the region of the bulge 20, as is indicated by the missing hatching.
- the position of the upper boundary wall 5 corresponds to the position shown unshaded in FIG. 3, in which the inner distance from the lower boundary wall is 6 a.
- the position of the edge 5 ′ located in the outer corner 5 ′′ (FIG. 1) is also indicated in FIG. 3.
- the inner distance from the front boundary wall 6 is only b, that is to say approximately half in the exemplary embodiment Accordingly, the cross section of the housing 10 has decreased towards the outside.
- the boundary wall 9 on the left in FIGS. 2 and 3 is tapered towards the outside at the ends of the housing 10, as can be seen in FIG. 2, so that the internal cross section is narrowed continuously and dead corners are avoided.
- the housing 10 is also free over its entire length of internal internals such as deflections, reinforcements and the like, so that no unevenness in the outlet flow can occur.
- a guide body 22 is provided in the form of a pipe section which is welded in perpendicularly between the boundary walls 4 and 9 and has the axis thereof, and which is approximately a third up to half the diameter of the feed pipe 3 and its upper apex according to FIG. 3 is aligned with the deepest point of the feed pipe 3.
- a free flow cross section remains in the housing 10 below the guide body 22.
- the guide body 22 is flowed around and prevents a "hole" from forming in the emerging jet in the area of the feed tube 3.
- the lower boundary wall 6 has on the side of the inlet of the feed pipe 3 an outwardly directed right-angled bend which forms a nozzle lip 7 in the form of a flat boundary of the outlet slot 30.
- the right-hand boundary wall 4 of the housing 10 in FIG. 3 is pulled down in a step 8 and also angled to form a nozzle lip 11 which is parallel to the nozzle lip 7 at a small distance d. It forms the other boundary of the outlet slot 30.
- the nozzle lips 7, 11 formed by plane anglings define the jet plane 12 of the flat liquor jet emerging from the housing 10.
- the ratio of the nozzle lip length e to the nozzle width d should not be less than 8: 1, e is the length measured in the direction of flow, on which the nozzle lips 7, 11 are parallel to each other, d their clear distance, e in one exemplary embodiment is 18 mm, d 2 mm.
- the beam should therefore have a certain guide length, which is conducive to its uniformity.
- the free edges of the nozzle lips 7, 11 should be sharply delimited at the trailing edge 21 in order to generate an exact jet. This is particularly important in the case of smaller fleet quantities being enforced.
- the liquor enters through the feed pipe 3 at the feed opening 2 into the bulge 20 into the interior of the bulge 20 and the housing 10. It bounces speaking their flow direction in the feed pipe 3 at 13 onto the left boundary wall 16 of the bulge 20 in FIG. 3, which merges into the boundary wall 9 of the housing 10, and becomes meaningful because there is the only outlet possibility of the arrow 13 'deflected for the first time.
- the fleet then impacts with its new flow direction at 14 onto the lower boundary wall 6 and is deflected to the right in the direction of arrow 14 '(FIG. 3).
- the fleet encounters a narrowed flow cross-section c and impinges at 15 on the inside of the lower nozzle lip 11 in order to be deflected into the outlet slot 30 in the direction of arrow 15 'by the flow cross-section c again narrowing considerably.
- the reduction in the flow cross section towards the outlet slot 30 results in a dynamic pressure which distributes the liquor on both sides, that is to say perpendicular to the plane of the drawing in FIG. 3.
- the three-fold deflection 13 ', 14', 15 'in conjunction with the cross-sectional constriction results in an equalization of the outlet pressure along the outlet slot, ie perpendicular to the plane of the drawing in FIG. 3.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Nonwoven Fabrics (AREA)
- Nozzles (AREA)
- Paper (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29503446U DE29503446U1 (de) | 1995-03-01 | 1995-03-01 | Breitstrahldüse |
DE29503446U | 1995-03-01 | ||
PCT/DE1996/000039 WO1996027042A1 (de) | 1995-03-01 | 1996-01-16 | Breitstrahldüse |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0801695A1 true EP0801695A1 (de) | 1997-10-22 |
EP0801695B1 EP0801695B1 (de) | 1998-11-18 |
Family
ID=8004679
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96900510A Expired - Lifetime EP0801695B1 (de) | 1995-03-01 | 1996-01-16 | Breitstrahldüse |
Country Status (4)
Country | Link |
---|---|
US (1) | US5906320A (de) |
EP (1) | EP0801695B1 (de) |
DE (2) | DE29503446U1 (de) |
WO (1) | WO1996027042A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007031657A1 (de) | 2007-07-06 | 2009-01-08 | Küsters Textile GmbH | Verfahren und Vorrichtung zum kontinuierlichen Waschen einer textilen Warenbahn |
US7897018B2 (en) * | 2007-09-05 | 2011-03-01 | Albany International Corp. | Process for producing papermaker's and industrial fabrics |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE243733C (de) * | ||||
DE1410047A1 (de) * | 1959-09-07 | 1968-10-10 | Arthur Thiel | Vorrichtung zur gleichmaessigen Behandlung von Stoffbahnen im ausgebreiteten Zustandmit fluessigen oder gasfoermigen Behandlungsmitteln |
AT243733B (de) * | 1961-08-12 | 1965-11-25 | Benteler Intertex Organisation | Breitnaßbehandlungsvorrichtung für Warenbahnen |
DE2334998B2 (de) * | 1973-07-10 | 1978-02-09 | Küsters, Eduard, 4150 Krefeld | Waschmaschine |
US4132363A (en) * | 1975-02-06 | 1979-01-02 | Eduard Kusters | Nozzle for producing a wide liquid jet |
DE2504856B2 (de) * | 1975-02-06 | 1978-07-27 | Kuesters, Eduard, 4150 Krefeld | Spaltdüse zur Erzeugung eines breiten Flussigkeitsstrahls |
US4347805A (en) * | 1976-05-12 | 1982-09-07 | National Steel Corporation | Apparatus for liquid coating thickness control |
DE2822977A1 (de) * | 1978-05-26 | 1979-11-29 | Vepa Ag | Vorrichtung zum nassbehandeln von bahnfoermigem textilgut |
FR2469212A1 (fr) * | 1979-11-16 | 1981-05-22 | Delepine Jean C | Bec d'ecoulement pour liquide |
DE3808698A1 (de) * | 1988-03-16 | 1989-09-28 | Textilmaschinen Service Gmbh | Vorrichtung zum auftragen gasartiger, fluessiger, pastoeser, vorzugsweise verschaeumter medien auf eine auftragsebene bzw. eine laufende insbes. textile warenbahn |
-
1995
- 1995-03-01 DE DE29503446U patent/DE29503446U1/de not_active Expired - Lifetime
-
1996
- 1996-01-16 US US08/894,510 patent/US5906320A/en not_active Expired - Fee Related
- 1996-01-16 DE DE59600830T patent/DE59600830D1/de not_active Expired - Fee Related
- 1996-01-16 WO PCT/DE1996/000039 patent/WO1996027042A1/de active IP Right Grant
- 1996-01-16 EP EP96900510A patent/EP0801695B1/de not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9627042A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE29503446U1 (de) | 1996-07-04 |
DE59600830D1 (en) | 1998-12-24 |
WO1996027042A1 (de) | 1996-09-06 |
US5906320A (en) | 1999-05-25 |
EP0801695B1 (de) | 1998-11-18 |
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