EP4000747A1 - Anschlussstutzenelement für systeme und/oder systeme zur abgabe von zerstäubten flüssigkeiten - Google Patents

Anschlussstutzenelement für systeme und/oder systeme zur abgabe von zerstäubten flüssigkeiten Download PDF

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Publication number
EP4000747A1
EP4000747A1 EP21209201.9A EP21209201A EP4000747A1 EP 4000747 A1 EP4000747 A1 EP 4000747A1 EP 21209201 A EP21209201 A EP 21209201A EP 4000747 A1 EP4000747 A1 EP 4000747A1
Authority
EP
European Patent Office
Prior art keywords
tubular element
tubular
fluid
connecting manifold
opening
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.)
Withdrawn
Application number
EP21209201.9A
Other languages
English (en)
French (fr)
Inventor
Federico Tonini
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.)
PNR Italia Srl
Original Assignee
PNR Italia Srl
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
Priority claimed from IT102020000027885A external-priority patent/IT202000027885A1/it
Priority claimed from IT202020000006441U external-priority patent/IT202000006441U1/it
Application filed by PNR Italia Srl filed Critical PNR Italia Srl
Publication of EP4000747A1 publication Critical patent/EP4000747A1/de
Withdrawn legal-status Critical Current

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
    • B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid

Definitions

  • the present invention belongs to the field of dispensing liquids and/or fluids.
  • the present invention relates to the field of dispensing atomized fluids by means of one or more nozzles or dispensing devices in general.
  • the present invention relates to a connecting manifold element adapted to allow the easy installation of one or more compressed air atomization nozzles or devices served (supplied) by a plurality of pipes or ducts, of which in particular one intended for water supply and more than one (for example three) intended for air supply.
  • the present invention relates to a connecting manifold element of the aforesaid type adapted to be applied to said plurality of main ducts or pipes so as to intercept the fluids (in particular water and air) transiting in said main pipes and to dispense a mixture of said at least two fluids.
  • the present invention relates to an element of the aforesaid type conceived so that the application thereof to said main pipes or ducts is particularly simplified and fast, as well as so that it can be assembled in simple and fast manners and therefore at low costs.
  • Said devices commonly called *compressed air atomizers*, proved to be useful and are therefore widely used in the production of atomized jets consisting of fine drops of liquid obtained by a process in which a jet of air strikes drops of water, fractionating them into much smaller drops and projecting them at high speed outside the orifice of the nozzle or dispensing device.
  • each atomizer must thus have four supply lines, one for liquid (usually water) and three (with independent pressure regulation) for air (or more generally gas).
  • a first drawback is that the installation of, for example, six atomizers involves arranging as many as twenty-four supply ducts with an apparent negative impact on assembly and/or installation times and possible sealing problems.
  • a second drawback is that, in the systems used in processes involving dust, there is inevitably a dramatic accumulation of encrustations on the several pipes present which, in the systems used in food or health processes, must be eliminated regularly and with great care and therefore require frequent stops with reduction of system productivity.
  • a further problem relates to the pressure drops in the fluid supply lines for the various atomizers, depending on the position thereof along said supply lines, wherein the atomizers farthest from the air supply source risk being supplied with insufficient air pressure, especially if the air supply line is not provided with an air inlet at each of the two ends.
  • a metal support such as a tube or a profile, to which atomizers and related supply lines are fastened, wherein alternatively the whole set of atomizers and related pipes is accommodated in a tube of greater diameter, and wherein in this case it is necessary to perforate said greater diameter tube at the positions provided for the spraying orifices.
  • the present invention is based on a very simple concept, i.e., to use the support of a manifold, in particular consisting of a set of several tubes (for example four tubes) mutually constrained (for example welded together), to channel through sections of considerable dimensions both the liquid to be sprayed and the three air supplies required.
  • the above general concept includes a very simple mode and does not require threaded connections of any kind to mount the atomizers on the manifold quickly while ensuring the seal of the connections.
  • the present invention relates to a connecting manifold element according to claim 1, wherein further embodiments of the connecting manifold element according to the present invention are defined by the claims.
  • a connecting manifold element comprises a first tubular element and a second tubular element extending each between a first end thereof and a second end thereof, wherein at least the respective first ends of said first tubular element and second tubular element are adapted to be connected to a first main supply duct and a second main supply duct, respectively, so as to intercept a first fluid and a second fluid, respectively, transiting in said first main supply duct and said second main supply duct, respectively; wherein said connecting manifold element comprises a dispensing device adapted to dispense a fluid resulting from the mixing of said first fluid and second fluid, and wherein said dispensing device is rigidly fastened to said first tubular element and second tubular element and is placed in fluid communication with the interior of said first tubular element and second tubular element, respectively, so that said first fluid and second fluid intercepted by said first tubular element and second tubular element, respectively, are introduced into said dispensing device and dispensed in the form of mixture from said dispens
  • said dispensing device comprises a dispensing terminal and an interface element, mutually fastened and placed in mutual fluid communication, wherein said interface element is fastened to said first tubular element and second tubular element and placed in fluid communication with the interior of said first tubular element and second tubular element, respectively.
  • said interface element is shaped to define a first inner channel and a second inner channel placed in fluid communication with the interior of said first tubular element and second tubular element, respectively.
  • at least said first inner channel is placed in fluid communication with said first tubular element by means of a tubular connection element which protrudes from said interface element and is at least partially accommodated in a corresponding through seat said first tubular element.
  • said connecting manifold element comprises an annular sealing element interposed between said interface element and said first tubular element, wherein said tubular connection element extends through said annular sealing element.
  • said first channel communicates with the exterior of said interface element to define a first inspection opening, wherein said inspection opening is closed by a first removable plug.
  • said dispensing device is fastened to said first tubular element and second tubular element by fastening means comprising a plate and at least one tie rod element.
  • said first tubular element and second tubular element are arranged adjacent and substantially parallel to each other, wherein said plate and said dispensing device are arranged in transversely opposite positions with respect to said first tubular element and second tubular element, and wherein said tie rod element extends between said first tubular element and second tubular element.
  • each of said first tubular element and second tubular element are closed by a first and second fixed closing elements and by a third and fourth fixed closing elements, respectively, wherein said first fixed closing element and third fixed closing element define a second opening and a third opening, respectively, adapted to be placed in fluid communication with said first main duct and second main duct, respectively, and wherein said second opening and third opening, respectively, are closed by a second removable plug and a third removable plug, respectively, wherein said connecting manifold element is thus adapted to intercept said first fluid and second fluid at the ends of said first main duct and second main duct, respectively.
  • said second fixed closing element and fourth fixed closing element also define a fourth opening and a fifth opening, respectively, adapted to be placed in fluid communication with said first main duct and second main duct, respectively, wherein said connecting manifold element comprises a fourth removable plug and a fifth removable plug adapted to close said fourth opening and fifth opening, respectively, wherein said connecting manifold element is thus adapted to intercept said first fluid and second fluid at intermediate positions of said first main duct and second main duct, respectively.
  • the present invention finds particular application in the field of atomized water or liquid dispensing systems comprising a plurality of main supply pipes or ducts for supplying air (or gas in general) to a plurality of dispensing devices, this being the reason why the present invention will be described below with possible particular reference to the applications thereof in the field of systems of the aforesaid type.
  • the possible applications of the present invention are not limited to those described below.
  • the present invention finds convenient application in all cases where it is necessary to connect at least one fluid dispensing device to a plurality of main supply pipes or ducts in a quick and reliable manner.
  • the self-supporting connecting manifold 100 comprises a first tubular element 101, a second tubular element 102 and a fluid dispensing device 103; in this regard, it should further be noted that as depicted, the manifold 100 can comprise a number of tubular elements greater than two (for example four tubular elements as depicted) and a number of dispensing devices 103 greater than one (for example two as depicted).
  • tubular elements and the fluid dispensing devices of the self-supporting manifolds 100 are substantially based on the same constructive concept, for reasons of clarity and synthesis, a description will be given below of a self-supporting manifold 100 comprising two tubular elements 101 and 102 and a dispensing device 103.
  • the tubular elements 101 and 102 can in particular be made by cutting an original pipe, for example an original pipe corresponding to the two main pipes (see the description below) to which the manifold 100 is intended to be connected, in particular assuming that said two main pipes or ducts have a similar shape.
  • the self-supporting manifold 100 is intended to be connected to two adjacent and parallel main pipes having a similar shape (in particular section) to that of the two tubular elements 101 and 102. It is therefore clear that, for example, in order to connect the manifold 100 to the aforesaid two main pipes, a portion of a length corresponding to or slightly greater than that of the tubular elements 101 and 102 can be removed (for example by cutting), wherein the removed portions of the main pipes will be replaced by the tubular elements 101 and 102, wherein the connection between each of the tubular elements 101 and 102 in the manner described above will ensure that the fluids (for example air and water, respectively) transiting in said two original pipes are intercepted by the tubular element 101 and respectively by the tubular element 102.
  • a portion of a length corresponding to or slightly greater than that of the tubular elements 101 and 102 can be removed (for example by cutting), wherein the removed portions of the main pipes will be replaced by the tubular elements 101 and 102, wherein the connection between each
  • the device 103 comprises a dispensing terminal 104 (for example an atomizer) and an interface element 105, mutually fastened by means of screws 106 extending through the interface 105 and engage respective internally threaded blind holes (not shown) of the dispensing terminal 104.
  • the interface 105 and the dispensing terminal 104 are placed in fluid communication by a channel 108 inside the interface 105, extending perpendicularly to the main opposite and parallel surfaces 1050 and 1051 of the interface 105 which delimit the interface 105 in the direction of the thickness thereof, wherein one end of the channel 108 opens onto the surface 1051 of the interface 105 placed in contact with the dispensing terminal 104.
  • the channel 108 is positioned at and thus placed in communication with a cavity 109 of the dispensing terminal 104, which in turn communicates with the dispensing end 110 (for example a nozzle) of the dispensing terminal 104, for example by means of a mixing and/or atomization chamber (not shown).
  • the interface 105 comprises a second channel 107 parallel to said first channel 108, wherein the second channel 107 comprises an end which opens onto the surface 1050 of the interface 105 opposite the surface 1051.
  • Said first channel 108 and second channel 107 are also intercepted by a third channel 111 extending perpendicularly to said first channel 108 and second channel 107 (and therefore along a direction substantially parallel to the surfaces 1050 and 1051), wherein said third channel 111 opens onto a transverse surface of the interface 105 to define an opening 112 closed by a removable screw plug 113.
  • a tubular connection element 114 is fastened to the interface 105 at the second channel 107 and partially protrudes from the surface 1050 of the interface 105, a sealing ring 115 being positioned on the surface 1050 of the interface 105 to surround the protruding part of the tubular connection element 114.
  • the dispensing device 103 fastened to the tubular elements 101 and 102 as shown in figures 2 and 3 (as well as according to the methods explained below), the tubular connection element 114 is placed at and put in communication with a hole (not shown in the figures) obtained through the wall of the tubular element 101 placed in contact with the interface 105, the dispensing terminal 104 therefore being placed in fluid communication with the interior of the tubular element 101.
  • tubular element 102 the interior of which is placed in fluid communication with the dispensing device 103 through a hole obtained in the wall thereof in contact with the interface 105 and in turn placed in fluid communication with the dispensing terminal 104 by an annular connection element, a first, a second and a third channel as well as a cavity similar to the connection 104, the first channel 108, the second channel 107, the third channel 111 and the cavity 109, respectively.
  • tubular elements 101 and 102 are placed in fluid communication with the dispensing device 104
  • methods described above according to which the tubular elements 101 and 102 are placed in fluid communication with the dispensing device 104 can also be applied to put further tubular elements in fluid communication with the dispensing device 104, as in case of the tubular elements 121 and 122 and as deducible from the observation of figure 3 in which two further annular connection elements 1140 and 1141 are depicted (surrounded by respective sealing rings 1150) for the communication of the interface 105 (and therefore of the entire dispensing device 103) with the tubular element 121 and respectively with the tubular element 122.
  • the tubular elements 101 and 102 and the dispensing device 103 are mutually constrained from a mechanical and/or structural point of view, by a constraint plate 150 which is placed abutting against the surfaces of the tubular elements 101 and 102 opposite the dispensing device 103, wherein the constraint plate 150 extends substantially transversely to the longitudinal extension direction of the tubular elements 101 and 102.
  • Two bolts or screws 151 each extend through a respective through hole of the plate 150 and each engage a respective internally threaded blind hole 152 defined by the interface element 105, wherein the bolts 151 extend into the space between the two adjacent terminals 101 and 102.
  • each of the tubular elements 101 and 102 are closed by a metal plate, for example welded, in which an opening 160 is made which is adapted to be closed by a removable plug (not shown), wherein in the absence of the plug, the opening 160 can be placed in fluid communication with a main duct or pipe in order to intercept the fluid in transit in said main duct or pipe.
  • the present invention provides a connecting manifold element which:
  • the self-supporting manifold element according to the present invention allows the widest choice of components, e.g., dispensing devices, as well as materials for manufacturing it.
  • the choice of the number of components, in particular of the tubular elements and dispensing devices can also be tuned to the specific purposes and/or needs and/or circumstances.
  • the opposite ends of the tubular elements each comprise a reclosable opening allows the manifold element according to the present invention to be installed both in an intermediate position along a plurality of main pipes (and therefore with each of the tubular elements with the opening ends 160 open to form a connecting element between two successive portions of a main pipe) and in a terminal or end position (and therefore with each of the tubular elements with an opening 160 open and the opposite one closed to form a terminal element of a main pipe.
  • the present invention allows the use of tubular elements with a desired cross section, and therefore not only rectangular as shown, but also for example square or octagonal.

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EP21209201.9A 2020-11-20 2021-11-19 Anschlussstutzenelement für systeme und/oder systeme zur abgabe von zerstäubten flüssigkeiten Withdrawn EP4000747A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102020000027885A IT202000027885A1 (it) 2020-11-20 2020-11-20 Elemento collettore di raccordo per sistemi e/o impianti per l’erogazione di liquidi atomizzati
IT202020000006441U IT202000006441U1 (it) 2020-11-20 2020-11-20 Elemento collettore di raccordo per sistemi e/o impianti per l’erogazione di liquidi atomizzati

Publications (1)

Publication Number Publication Date
EP4000747A1 true EP4000747A1 (de) 2022-05-25

Family

ID=81215093

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21209201.9A Withdrawn EP4000747A1 (de) 2020-11-20 2021-11-19 Anschlussstutzenelement für systeme und/oder systeme zur abgabe von zerstäubten flüssigkeiten

Country Status (1)

Country Link
EP (1) EP4000747A1 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995024970A1 (en) * 1994-03-17 1995-09-21 Mister Dripper Company, Llc Irrigation system with multi-functional irrigation control valve
US20070029411A1 (en) * 2003-03-27 2007-02-08 Spraying Systems Co. Modular automatic spray gun manifold
US20190151871A1 (en) * 2017-11-21 2019-05-23 Wagner Spray Tech Corporation Plural component spray gun system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995024970A1 (en) * 1994-03-17 1995-09-21 Mister Dripper Company, Llc Irrigation system with multi-functional irrigation control valve
US20070029411A1 (en) * 2003-03-27 2007-02-08 Spraying Systems Co. Modular automatic spray gun manifold
US20190151871A1 (en) * 2017-11-21 2019-05-23 Wagner Spray Tech Corporation Plural component spray gun system

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