Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
  • B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
  • B05B15/65—Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits
  • B05B15/658—Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits the spraying apparatus or its outlet axis being perpendicular to the flow conduit

Definitions

• the present invention refers generally to nozzles and, more particularly, to nozzles of the kind which are intended to be fixed to tubes which carry a pressurized fluid to be sprayed through the nozzle.
• Nozzles of this kind are known and include, in addition to a jet member, a holder for fastening the jet member in openings which are made in the wall surface of the tube.
• the disadvantage of these prior devices is that fo r each nozzle two components must be mounted, viz. first the holder in the wall opening and then the jet member in the holder,
• the present invention aims at eliminating this disadvantage and providing a nozzle where the holder and the jet member are constructed into a combined unit which is easy to mount on the fluid-carrying tube.
• a number of jet members are constructed into a unit with the holder.
• Fig. 1 is a perspective view of the nozzle according to the invention
• Fig. 2 is a side view of the nozzle according to Fig. 1 mounted on a fluid-carrying tube
• Fig. 3 is a cross-section of a jet member
• Fig. 4 is a cross-section along the line IV-IV in Fig. 2, and
• Fig. 5 is a front view of a tool suitable for the cleaning of a nozzle according to the invention.
• the nozzle according to the invention includes a flat strip 1 which is bent into cylinder shape. By means of a clamping device 2 the diameter of the strip or ring may be changed.
• a jet member 3 which includes a substantially conical indentation 4, an outlet orifice 5 made in the apex of the indentation and a bulge 6, hereinafter called a groove, surrounding the indentation for receiving a gasket 7 shown in Fig. 3.
• the nozzle according to the invention is intended to be fixed to a tube 8 shown in Fig. 2 and having a through opening 9 in its wall surface.
• the tube carries a press- urized fluid which is to * be sprayed through the nozzle.
• the indentation 4 is placed in the opening 9.
• the gasket 7 is placed in the groove 6. At the tightening of the clamping device a fluid-tight joint is formed between the indentation and the outer wall of the tube 8.
• Fig. 3 the strip 1 is shown at an enlarged scale before the bending thereof into a circular form.
• the substantiall conical indentation 4 the base surface of which is circ ⁇ ular, is surrounded by the annular bulge 6 in which the gasket 1 , for example an O-ring, is to be housed.
• substantially conical also three-dimensional bodies others than cones are intended to be covered, for example semispheres, pyramid shapes of other wart-like shapes.
• the bulge 6 need not connect directly to the edge of the base surface of the indentation but may be spaced from the edge.
• the outlet opening 5 may be bored, milled or made in some other way in the apex of the indentation. The form of the outlet opening 5 is adapted to the desired
• OMPI type of stream from the nozzle If a so-called jet stream (needle stream) is desired, a circular hole is bored in the apex of the indentation; if a flat stream is desired an elongated hole is milled.
• the strip 1 is preferably made from sheet steel, but also other mater ⁇ ials, such as for example aluminium, brass etc. are possible.
• Fig. 4 shows the clamping device 2 which, includes a screw 10 extending between embossed, smoothly upset portions 11 at either end of the strip.
• a nut 12 is screwed on to-..the free end of the screw. After tightening the nozzle on the tube 8 the exposed thread of the screw is deformed to avoid unscrewing the nut unintentionally, for example by vibrations.
• the apex of the indentation 4 has to extend through the opening 9 some distance out or up over the interior wall surface of the tube 8.
• the outlet opening 5 can be cleaned in a simple ' way by means of a brush, for example the brush shown in Fig. 5 which includes a tube 13 in the wall surface of which two rows of axially extending, radially projecting bristles are disposed diametrically opposite each other.
• the strip 1 may be provided with more than one jet member 3.
• the nozzle may be used, for example, in so-called spray pipes in paper and cellulose manufacturing machines.

Landscapes

• Nozzles (AREA)

Priority Applications (3)

Applications Claiming Priority (2)

Publications (1)

Family

ID=20339379

Family Applications (1)

Country Status (6)

Citations (5)

Family Cites Families (1)

• 1979
  • 1979-11-22 SE SE7909683A patent/SE433451C/sv not_active IP Right Cessation
• 1980
  • 1980-11-21 DE DE8080902250T patent/DE3070529D1/de not_active Expired
  • 1980-11-21 EP EP80902250A patent/EP0046756B1/en not_active Expired
  • 1980-11-21 JP JP56500081A patent/JPS648577B2/ja not_active Expired
  • 1980-11-21 WO PCT/SE1980/000298 patent/WO1981001374A1/en active IP Right Grant
• 1981
  • 1981-12-18 FI FI814078A patent/FI71887C/sv not_active IP Right Cessation

Patent Citations (5)

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