EP3750633A1 - Zerlegbare zerstäuberöffnung oder -düse - Google Patents

Zerlegbare zerstäuberöffnung oder -düse Download PDF

Info

Publication number
EP3750633A1
EP3750633A1 EP20179509.3A EP20179509A EP3750633A1 EP 3750633 A1 EP3750633 A1 EP 3750633A1 EP 20179509 A EP20179509 A EP 20179509A EP 3750633 A1 EP3750633 A1 EP 3750633A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
chamber
semi
nozzle body
orifice
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
EP20179509.3A
Other languages
English (en)
French (fr)
Other versions
EP3750633B1 (de
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
Application filed by PNR Italia Srl filed Critical PNR Italia Srl
Publication of EP3750633A1 publication Critical patent/EP3750633A1/de
Application granted granted Critical
Publication of EP3750633B1 publication Critical patent/EP3750633B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/124—Accessories for subsequent treating or working cast stock in situ for cooling
    • B22D11/1246—Nozzles; Spray heads
    • 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
    • B05B1/046—Outlets formed, e.g. cut, in the circumference of tubular or spherical elements
    • 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
    • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • 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
    • B05B7/10—Spray pistols; Apparatus for discharge producing a swirling discharge

Definitions

  • the present invention belongs to the sector of dispensing atomized fluids with cooling purposes, in particular for cooling processed metal products obtained by continuous casting.
  • the present invention relates to an atomizer nozzle adapted to cool metal products, such as billets and/or similar during the solidification step defined as continuous casting.
  • an innovative mouth or nozzle forms the subject of the present invention, adapted to be used for cooling metal products of the above type.
  • the present invention relates to a nozzle or mouth of the above type, adapted to be disassembled into various components and thus facilitate maintenance, in particular the cleaning of said various components.
  • a system for dispensing atomized fluids further forms the subject of the present invention, said system comprising an innovative nozzle of the above type.
  • the principle of the continuous casting process or method is that of continuously casting liquid steel, turning it into solid bars after cooling and solidification thereof.
  • Various semi-finished products, such as slabs, blooms and billets are distinguished depending on the dimensions achieved by the bar, intended, in turn, for subsequent processing to obtain a finished iron and steel product.
  • continuous casting can be defined as an industrial production process, by means of which liquid material is pushed, by gravitational force, into an ingot mold (usually made of a copper alloy) with the purpose of obtaining manufactured products having a predefined shape depending on the needs.
  • One of the main advantages offered by the continuous casting method is that of allowing the production, with contained costs and times, of finished section bars of a suitable shape adapted to allow the further processing thereof, for example, by means of rolling mills roughers and finishing rolling mills.
  • a container is usually used, also coated with a refractory material, a tundish, intended to receive the jet (casting) of molten steel from the ladle.
  • the main task of the tundish is to keep an iron shutter - constant static, i.e., to ensure a regular outflow of the steel; in the case of several casting lines, the flow of steel is equally distributed among the various ingot molds.
  • the quality of the product is checked during the first steps of solidification, which take place in the ingot mold, a die made of a copper alloy with forced water cooling, provided with an oscillating motion generated by a machine referred to as an oscillator.
  • the heat is eliminated in the ingot mold mainly by the cooling water in forced circulation, wherein said cooling by means of water in forced circulation, and thus of the steel in the ingot mold, results in the formation of a solid film, referred to as a skin or shell, the thickness of which increases along the ingot mold. even reaching about 3 cm.
  • the material positioned more internally in the ingot mold remains liquid or semi-solid (mushing zone) for many meters along the casting descent path, wherein the state thereof depends on the casting speed and the thickness of the line.
  • the casting line with a partially solid bar (on the outside) and a partially liquid bar (on the inside), leaves the ingot mold and descends into the curved section.
  • the time spent in the ingot mold is generally less than one minute.
  • the thickness of the skin depends on the shape and size of the bar cross-section, and for such requirements, the casting speed, i.e. the line feeding speed, varies from 0.5-1.8 m/min for slabs to 2-5 m/min for billets.
  • the reason why the bar is not cooled completely inside the ingot mold is due to the fact that, during the cooling, the skin contracts (solidification shrinkage), whereby the line (bar)-ingot mold contact is absent, thus reducing the transmission efficiency of the heat (and thus of the cooling) due to the presence of a layer of air, which is interposed between the walls made of a copper alloy of the ingot mold and the newly-formed solid shell of the bar.
  • the bars are further cooled during the curved descent path thereof with biphasic atomizers (liquid-gas), which allow a regular and uniform cooling along the whole perimeter of the bar.
  • the first cooling systems were exclusively made up of water nozzles, whereas the use of a fluid atomized by means of special nozzles or mouths, referred to as atomizers, has recently been introduced.
  • a liquid (usually water) and a gas (usually air) are mixed by means of such atomizers so as to form a jet of atomized particles having a fine drop diameter. This allows both an optimization of the use of water, and, due to the reduced drop diameter, a significant improvement in the heat transmission coefficient.
  • An atomizer consists of an atomizer body and an atomizer nozzle.
  • the two fluids liquid and gas
  • the atomizer body or main pipe
  • the high-speed gas causes the fragmentation thereof into tiny drops, a process known as atomization.
  • the atomizer nozzle has the function of generating the desired distribution and form of the outgoing flow or jet.
  • the correct quality of the spray or jet understood as the quantity and distribution of the water supplied, is indispensable for determining a correct cooling speed of the steel.
  • the main problem of this type of nozzles according to the prior art is that the diffuser member, also known by the term of diffuser insert, tends to become blocked, wherein the blocking of the diffuser insert results in the interruption of the dispensing of the atomized cooling fluid.
  • said diffuser insert positioned inside the atomizer nozzle, blocks easily due to the debris present in the re-circulating water of the system, which ends up blocking the narrow passages of said diffuser insert. It arises therefore clearly from the previous description that in order to ensure the continuity of the supply of the cooling fluid, and in particular, to ensure a constant supply over time, atomizer nozzles are subject to regular maintenance with the purpose of eliminating potential debris deposited inside the inner spaces of the nozzle.
  • atomizer nozzles of the known type do not allow easy maintenance because in order to carry out maintenance (cleaning) of the nozzles of the known type, the same must be completely removed from the cooling line.
  • nozzles of the known type a further drawback found in nozzles of the known type is that internal cleaning of said nozzles of the known type is however complicated and dispersive in terms of time, because nozzles of the known type cannot be disassembled, in particular the orifice mouth thereof is not separable, wherein, on the contrary, the removal of the orifice mouth would allow access inside the nozzle, and thus improved cleaning of the nozzle.
  • the atomizer nozzles used to-date are made in a single piece consisting of a nozzle body, already comprising an orifice mouth as previously said, and an internally placed diffuser insert, assembled so as to make them integral, the nozzle body being fixed directly to the atomizer body or main pipe by means of a threaded connection.
  • the present invention basically arises from the need, highlighted above, that it is indispensable to develop an atomizer nozzle with a convenient system for disassembling the orifice mouth thereof.
  • an atomizer nozzle consisting of separate pieces, which can easily be disassembled, is suggested and obtained, wherein the disassembling of the orifice mouth has been conceived to favor the cleaning of the critical parts which are subject to clogging, adapted to mix and atomize fluids, from any solid particles present in the process fluids, thus ensuring optimum working of the atomizer nozzle.
  • the atomizer device described and suggested herein comprises a first element, otherwise also known as a nozzle body, consisting of an outer coat, provided with a connection, which allows the fastening thereof to a main pipe or fitting, otherwise known as the atomizer body.
  • the nozzle body is (partially) accommodated and removably fastened inside the nozzle orifice, the diffuser insert being accommodated in the nozzle body.
  • said nozzle body and said nozzle orifice are mutually fastened, they define an inner diffuser chamber, which is specifically designed to atomize the outcoming spray or jet.
  • the present invention relates to an atomizer nozzle for dispensing an atomized fluid, said nozzle being shaped so as to define an inner distribution chamber, adapted to accommodate a diffuser insert, said nozzle comprising fastening means adapted to allow said nozzle to be fastened to a main pipe or fitting, wherein, with said nozzle fastened to said main pipe or fitting, said inner distribution chamber is in communication with introduction means of said main pipe or fitting for introducing, into said inner distribution chamber, at least one liquid and at least one gas, wherein said nozzle comprises a nozzle body defining a first inner chamber and a nozzle orifice, defining a second inner chamber, which opens out into a dispensing orifice by means of which said second inner chamber is placed in communication with the exterior of said nozzle orifice; wherein said nozzle body and said nozzle orifice are
  • said nozzle body comprises a first portion externally delimited by an outer surface, wherein said outer surface of said first portion comprises a plurality of four surface portions mutually shaped and positioned to define a first joint of the dovetail type, said first joint of the dovetail type being adapted to engage a second joint of the dovetail type of said main pipe or fitting.
  • said four surface portions comprise a first flat portion) and a second flat portion mutually connected in order to define a solid angle smaller than 90°, and a third flat portion and a fourth flat portion mutually connected in order to define a solid angle smaller than 90°, and wherein the straight directrices of said first flat portion and said third flat portion lie on parallel planes respectively.
  • said outer surface of said first portion of said nozzle body comprises a fifth portion and a sixth portion, which are flat and parallel and perpendicular to said first portion and said third portion of said outer surface of said first portion of said nozzle body.
  • said nozzle body comprises a second portion, which extends from said first portion and which, with said nozzle body rigidly fastened to said nozzle orifice, is accommodated in said second inner chamber of said nozzle body, wherein the outer surface of said second portion comprises a seventh substantially cylindrical end portion opposite to said first portion of said nozzle body, an eighth substantially cylindrical intermediate portion between said seventh end portion and said first portion of said nozzle body, a ninth substantially cylindrical portion, which extends from said first portion of said nozzle body, and wherein said seventh portion and said ninth portion have substantially coinciding diameters, smaller than that of said eighth intermediate portion.
  • said eighth and ninth portion are connected by a tenth truncated cone portion, wherein said seventh and eighth portion are connected by an eleventh truncated cone portion, and wherein said tenth portion and eleventh portion have opposite conicity.
  • said first inner chamber comprises a first semi-chamber and a second semi-chamber, which are substantially cylindrical and communicating, wherein, with said nozzle fixed to said main pipe or fitting, said first semi-chamber and second semi-chamber are positioned upstream and downstream respectively, with respect to the flow direction of said at least one liquid and said at least one gas towards said dispensing orifice, wherein the diameter of said first semi-chamber is greater than the diameter of said second semi-chamber, and wherein said first semi-chamber and second semi-chamber are adapted to accommodate, by shape and size interference, corresponding portions of said diffuser element.
  • said second inner chamber of said nozzle orifice comprises a third semi-chamber and a fourth semi-chamber, which are substantially cylindrical and mutually communicating, wherein, with said nozzle fixed to said pipe or main connection, said third semi-chamber and fourth semi-chamber are positioned upstream and downstream, respectively, with respect to the flow direction of said at least one liquid and said at least one gas towards said dispensing orifice, wherein the diameter of said third semi-chamber is greater than the diameter of said fourth semi-chamber, wherein said fourth semi-chamber is adapted to accommodate, by shape and size interference, a corresponding portion of said nozzle body, and wherein said fourth semi-chamber opens out into said dispensing orifice.
  • said third semi-chamber of said nozzle orifice is adapted to accommodate said second portion of said nozzle body.
  • said third semi-chamber is radially delimited by a substantially cylindrical surface, from which a circular groove extends towards the outside of said third semi-chamber, adapted to accommodate an elastic contrast ring.
  • said circular groove is positioned at said ninth cylindrical portion of the outer surface of said second portion of said nozzle body.
  • said nozzle orifice is shaped to define two flat parallel contrast surfaces, and wherein, with said nozzle body rigidly fastened to said nozzle orifice, said two contrast surfaces are placed in abutment with said fifth portion and sixth portion of said outer surface of said first portion of said nozzle body, respectively.
  • said nozzle orifice is shaped to define a circular crown-shaped outer contrast surface, adapted to be engaged by a fastening ring, which is adapted, in turn, to be fastened, by screwing, to said main pipe or fitting.
  • said nozzle comprises a diffuser insert adapted to be accommodated in said distribution chamber and an elastic ring adapted to be interposed between said nozzle body and said nozzle orifice for mutually fastening said nozzle body and nozzle orifice.
  • said elastic ring is adapted to be accommodated, at least partially, in said circular groove between said circular groove and ninth cylindrical portion of the outer surface of said second portion of said nozzle body.
  • said nozzle comprises fastening means for fastening said nozzle to said main pipe or fitting.
  • said nozzle comprises a ring, which defines an inner surface adapted to engage said circular crown-shaped outer contrast surface of said nozzle orifice, said ring further comprising a thread adapted to engage, by screwing, a corresponding thread of said main pipe or fitting.
  • An atomizer system for atomizing a liquid and delivering an atomized fluid further forms the subject of the present invention, said system comprising at least one main pipe or fitting and a nozzle for dispensing said atomized fluid, which can be mutually connected, wherein said nozzle defines at least one distribution chamber and comprises at least one dispensing orifice for dispensing said atomized fluid, and wherein said pipe or fitting comprises means for introducing at least one liquid and at least one gas into said at least one distribution chamber of said nozzle, wherein said nozzle is a nozzle according to one of the previously summarized embodiments.
  • said main pipe or fitting is shaped to define a pre-chamber, into which said means for introducing said at least one liquid and at least one gas converge, wherein, with said first nozzle orifice of said nozzle being connected to said main pipe or fitting, said pre-chamber is in communication with said distribution chamber of said nozzle.
  • the disassemblable nozzle according to the embodiment of the present invention depicted herein is identified by reference numeral 100 and, as depicted, is applicable to a main pipe or fitting 500 (also referred to as an "air-water atomizer") provided with means (not depicted in detail) for introducing, into the nozzle 100, at least one liquid (usually water) and at least one gas (usually air).
  • a main pipe or fitting 500 also referred to as an "air-water atomizer”
  • means not depicted in detail
  • the nozzle 100 comprises a first main hollow body 300 (also referred to as a nozzle orifice as it comprises the dispensing orifice, see the following description), which, in turn, comprises a circular crown-shaped engaging surface 3030 adapted to be engaged by a corresponding circular crown-shaped surface and defined internally by a ring 600, said ring 600, being provided with an inner thread adapted to engage, by screwing, a corresponding thread 5002 of said main pipe 500.
  • a first main hollow body 300 also referred to as a nozzle orifice as it comprises the dispensing orifice, see the following description
  • a circular crown-shaped engaging surface 3030 adapted to be engaged by a corresponding circular crown-shaped surface and defined internally by a ring 600, said ring 600, being provided with an inner thread adapted to engage, by screwing, a corresponding thread 5002 of said main pipe 500.
  • the hollow body 200 (also referred to as a nozzle body) defines an inner chamber 2000, while the nozzle orifice 300 defines an inner chamber 3000, which opens out into a dispensing orifice 317 by means of which the inner chamber 3000 is placed in communication with the exterior.
  • said inner chamber 2000 and inner chamber 3000 are placed in mutual communication defining a distribution chamber, in which a diffuser element (also referred to as a diffuser insert) 700 is accommodated, wherein, with the body 300 (and thus with the entire nozzle 100) fastened to the atomizer body 500 according to the procedures described previously, said at least one liquid and at least one gas are introduced into the inner distribution chamber or cavity in the flow direction indicated in figure 4 by arrow F1, wherein the atomized fluid generated by the interaction of said at least one liquid and at least one gas with the diffuser element 700, is dispensed through the orifice 317 in the direction indicated in figure 4 by arrow F2.
  • a diffuser element also referred to as a diffuser insert
  • the nozzle body 200 comprises a first portion 2001 and a second portion 2002, which extends from said portion 2001, wherein, with the nozzle 100 fastened to the fitting 500, the portions 2001 and 2002 are positioned upstream and respectively downstream with respect to the flow direction (indicated by arrows F1 and F2), towards the dispensing orifice 317.
  • One feature of the nozzle 100 according to the present invention is represented by the shape of the outer surface of the portion 2001.
  • the outer surface of the portion 2001 comprises four flat portions, shaped and positioned so as to define a dovetail joint adapted to engage a corresponding dovetail joint 5001 of the fitting 500.
  • said four portions comprise a first flat portion 202 and a second flat portion 203 mutually connected in order to define a solid angle smaller than 90°, and a third flat portion 2020 and a fourth flat portion 2030 mutually connected in order to define a solid angle smaller than 90°, wherein the straight directrices of said first flat portion 202 and third flat portion 2020 lie on parallel planes, respectively, while said second flat portion 203 and fourth flat portion 2030, which are both moon crescent shaped according to a plan view from the direction F1, lie on a common plane.
  • Said outer surface of the portion 2001 further comprises a fifth portion 208 and a sixth portion 2080, which are flat and parallel and perpendicular to said second portion 203 and fourth portion 2030, said fifth portion 208 and sixth portion 2080 being intended to cooperate with corresponding surfaces of the nozzle orifice 300 (see the following description) so as to prevent, with the nozzle body 200 and the nozzle orifice coupled as in figure 4 , any mutual rotation of the nozzle body 200 with respect to the nozzle orifice 300 and vice versa.
  • said fifth portion 208 and sixth portion 2080 together with the corresponding surface portions or surfaces of the nozzle orifice 300, define the mutual orientation (with respect to a longitudinal axis parallel to the direction F1-F2) of the nozzle body 200 and nozzle orifice 300.
  • the second portion 2002 of the nozzle body 200 is externally delimited by a plurality of portions, which comprise a seventh substantially cylindrical end portion 215 opposite to said first portion 2001 of said nozzle body 200, an eighth substantially cylindrical intermediate portion 213 between said seventh end portion 215 and first portion 2001 of said nozzle body 200, a substantially cylindrical ninth portion 211, which extends from said first portion 2001 of said nozzle body 200, wherein said seventh portion 215 and ninth portion 211 have substantially coinciding diameters, smaller than that of said eighth intermediate portion 213, and wherein said eighth portion 213 and ninth portion 211 are connected by a truncated cone tenth portion 212, while said seventh portion 215 and eighth portion 213 are connected by an eleventh truncated cone portion 214, wherein said tenth portion 212 and eleventh portion 214 have opposite conicity, the portion 212 tightening from the portion 213 towards the portion 211, the portion 214 tightening from the portion 213 towards the portion 215.
  • the inner chamber 2000 of the nozzle body 200 is shaped so as to comprise a first pre-chamber 217 and a second pre-chamber 219 defined by the first portion 2001 of the nozzle body 200, said first pre-chamber 217 (positioned upstream with respect to the flow direction F1-F2) and second pre-chamber 219 (positioned downstream with respect to the flow direction F1-F2) being communicating and connected by a circular crown-shaped surface 218 (according to a plan view from the direction F1), the diameter of the pre-chamber 217 being smaller than the diameter of the pre-chamber 219, wherein the pre-chamber 219 is intended to accommodate, due to shape and size interference, a corresponding cylindrical portion of the diffuser element 700 (see figure 4 and the following description).
  • the chamber 2000 further comprises an end chamber 221 downstream of the pre-chamber 219 and communicating therewith, the end chamber 221 being intended to accommodate, due to shape and size interference, a second corresponding cylindrical portion of the diffuser element 700 (see figure 4 and the following description), different from the portion of the diffuser element 700 accommodated in the pre-chamber 219.
  • the nozzle orifice 300 comprises an engaging portion 301 radially delimited by a cylindrical surface 3010, which connects a circular crown-shaped end surface (according to a plan view from the direction F1) 306 and the engaging surface 3030, which is also circular crown-shaped according to a plan view from a direction opposite to the direction F2.
  • a first flap 302D and a second flap 302D1 extend from the surface 306, defining a flat surface 304 and a flat surface 3041, respectively, opposite and parallel to the surface 304, wherein the flaps 302D and 302D1 are delimited by an end surface 302 and 3021, respectively, both surfaces 302 and 3021 being moon crescent shaped according to a plan view from the direction F1.
  • the surfaces 304 and 3041 are placed in abutment with the flat surface 2080 and the flat surface 208 of the nozzle body, respectively, defining, as anticipated, the mutual orientation of the nozzle body 200 and the nozzle orifice 300 and preventing rotations of the nozzle body 200 with respect to the nozzle orifice 300 and vice versa.
  • the end portion 309 extends from the engaging portion 301; it is radially delimited by an outer cylindrical surface 3060 (partially knurled), from which a true truncated cone portion 305 extends with conicity tightening towards the end of the portion 309.
  • the portion 309 has an external diameter smaller than that of the portion 301 and it is connected to the portion 301 by the circular crown-shaped engaging surface 3030.
  • the inner chamber 3000 comprises a housing portion 311 intended to accommodate the portion 2002 of the nozzle body 200 ( figures 3 and 4 ), said housing portion 311 being radially delimited by a cylindrical surface 3110, from which a circular groove 312, intended to accommodate an elastic contrast ring 800, extends towards the outside of the portion 311 (see the following description).
  • the inner chamber 3000 comprises a dispensing chamber 307 radially delimited by a cylindrical surface 3070 in communication, upstream with the chamber 311 and downstream with the dispensing orifice 317, the diameter of the chamber 307 being smaller than that of the chamber 311, the surfaces 3070 and 3110 thus being connected by a circular crown-shaped surface 314 (according to a plan view from a direction opposite to the direction F2).
  • the same comprises a cylindrical engaging portion 701 with the outer diameter substantially coinciding with the inner diameter of the pre-chamber 219 of the nozzle body 200, from which a cylindrical dispensing portion 702 extends with a smaller diameter than that of the portion 701 and substantially coinciding with the inner diameter of the end chamber 221 of the nozzle body 200.
  • the diffuser element 700 is further shaped to define channels and/or grooves adapted to allow the passage of the mixture of gas and liquid therein and/or between the outer cylindrical surfaces thereof and the corresponding inner cylindrical surfaces of the pre-chamber 219 and of the end chamber 221 of the nozzle body 200, respectively.
  • the assembly of the nozzle 100 can be summarized as follows.
  • the diffuser element 700 is introduced into the nozzle body 200 taking care that the portion 701 is accommodated in the pre-chamber 219 and the portion 702 is accommodated in the end chamber 221, respectively, in particular with the portion 701 in abutment against the circular crown-shaped surface 220, which connects the pre-chamber 219 and the end chamber 221, thus, obtaining a shape and size coupling between the diffuser 700 and the nozzle body 200 so as to prevent mutual movements, in particular rotations, between the diffuser 700 and the nozzle body 200.
  • the elastic ring 800 is introduced into the nozzle orifice 300, in particular accommodated in the inner groove 312, the dimensions of the ring 800 being such that, when the ring is accommodated in the groove 312, it protrudes from said groove 312 into the housing chamber 311.
  • the nozzle body 200 is introduced into the nozzle orifice 300, wherein, during this step, the portion 2002 of the nozzle body is introduced into the housing chamber 311 of the nozzle orifice 300, also in this case, obtaining a shape and size coupling between the nozzle body 200 and the nozzle orifice 300.
  • the truncated cone surface 214 comes into abutment against the elastic ring 800, which is thus deformed and pushed inside the groove 312, in this way allowing the further insertion of the portion 2002 into the chamber 311, where, with the nozzle body 200 inserted in the nozzle orifice, as shown in figure 4 , the elastic ring 800 takes the original conformation, positioning itself at the cylindrical surface 211, thus avoiding the accidental outburst of the body 200 from the nozzle orifice 300.
  • the nozzle body 200 and the nozzle orifice must be oriented so that the surfaces 304 and 3041 are parallel to the surface 208 and to the surface 2080 respectively, said surfaces 304 and 3040 being thus in abutment against the surface 208 and 2080 respectively, with the nozzle body 200 coupled to the nozzle orifice 3000, as depicted in figure 4 .
  • the dovetail joint of the nozzle body 200 is engaged on the dovetail joint 5001 of the fitting 500, wherein, during the further next step the assembly nozzle body 200 - elastic ring 800 - diffuser element 700 and nozzle orifice is fastened to the fitting 500, engaging the inner thread of the ring 600 on the corresponding thread 5002 of the fitting 500, and thus, fastening the assembly nozzle body 200 - elastic ring 800 - diffuser element 700 and nozzle orifice to the fitting 500 by contrast between the annular abutment surface 3030 of the nozzle orifice with a corresponding annular surface defined internally by the ring 600.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles (AREA)
  • Medicines Containing Plant Substances (AREA)
EP20179509.3A 2019-06-12 2020-06-11 Zerlegbare zerstäuberöffnung oder -düse Active EP3750633B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102019000008757A IT201900008757A1 (it) 2019-06-12 2019-06-12 Ugello o bocchello atomizzatore smontabile

Publications (2)

Publication Number Publication Date
EP3750633A1 true EP3750633A1 (de) 2020-12-16
EP3750633B1 EP3750633B1 (de) 2023-08-09

Family

ID=68138676

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20179509.3A Active EP3750633B1 (de) 2019-06-12 2020-06-11 Zerlegbare zerstäuberöffnung oder -düse

Country Status (2)

Country Link
EP (1) EP3750633B1 (de)
IT (1) IT201900008757A1 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2432012A1 (de) * 1973-08-15 1975-03-06 Edward J Schaming System zur steuerung und verteilung eines kuehlmittels fuer ein walzwerk
GB1545052A (en) * 1976-01-23 1979-05-02 Spraytec Eng Ltd Nozzles
JPS645658U (de) * 1987-06-27 1989-01-12
TW201521879A (zh) * 2013-12-03 2015-06-16 Metal Ind Res & Dev Ct 定向高壓噴嘴結構及其製程

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2432012A1 (de) * 1973-08-15 1975-03-06 Edward J Schaming System zur steuerung und verteilung eines kuehlmittels fuer ein walzwerk
GB1545052A (en) * 1976-01-23 1979-05-02 Spraytec Eng Ltd Nozzles
JPS645658U (de) * 1987-06-27 1989-01-12
TW201521879A (zh) * 2013-12-03 2015-06-16 Metal Ind Res & Dev Ct 定向高壓噴嘴結構及其製程

Also Published As

Publication number Publication date
EP3750633B1 (de) 2023-08-09
IT201900008757A1 (it) 2020-12-12

Similar Documents

Publication Publication Date Title
KR101110721B1 (ko) 풀-콘형 분사노즐
EP1071514B1 (de) Zerstäubungsdüse
CA2654556C (en) Full cone air assisted spray nozzle for continuous metal casting cooling
KR100226530B1 (ko) 박슬래브용 잠입 주조관
US8616264B2 (en) Submerged entry nozzle with installable parts
WO1989012519A1 (en) Refractory feed tube
WO2019112052A1 (ja) 金属粉末製造装置並びにそのガス噴射器及びるつぼ器
EP3750633B1 (de) Zerlegbare zerstäuberöffnung oder -düse
US20070241142A1 (en) Submerged entry nozzle
US5716538A (en) Discharge nozzle for continuous casting
EP3741462B1 (de) Zerlegbare zerstäuberöffnung oder -düse
US4079868A (en) Castellated tundish nozzle
JP4181234B2 (ja) 非晶質金属粉末の製造方法および装置
JPH0592153A (ja) スプレーノズル アセンブリ
US4532980A (en) Method and apparatus for removing fine cold shut cracks on horizontally and continuously cast steel strand using ejection of a plurality of metal shots
CN214866120U (zh) 一种三辊行星轧机
CN208245775U (zh) 一种锥雾可调节水喷嘴
US4374633A (en) Apparatus for the continuous manufacture of finely divided metals, particularly magnesium
EP1847325A2 (de) Sprühdüse
US20230405617A1 (en) Method for producing a spray nozzle device, in particular for spraying a casting strand during casting of metallic products, and a spray nozzle device
CN217796755U (zh) 一种模块化空心锥型喷嘴
CN211100837U (zh) 一种铜线拉丝机挤压模具
KR102312324B1 (ko) 냉각매체 분사장치
KR102265199B1 (ko) 냉각매체 분사장치
US20080179428A1 (en) Divergent Conduit Nozzle

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

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

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

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

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20210616

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20230228

RIN1 Information on inventor provided before grant (corrected)

Inventor name: TONINI, FEDERICO

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230525

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

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

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602020015264

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20230809

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1596873

Country of ref document: AT

Kind code of ref document: T

Effective date: 20230809

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

Ref country code: GR

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

Effective date: 20231110

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

Ref country code: IS

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

Effective date: 20231209

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

Ref country code: SE

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

Effective date: 20230809

Ref country code: RS

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

Effective date: 20230809

Ref country code: PT

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

Effective date: 20231211

Ref country code: NO

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

Effective date: 20231109

Ref country code: NL

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

Effective date: 20230809

Ref country code: LV

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

Effective date: 20230809

Ref country code: LT

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

Effective date: 20230809

Ref country code: IS

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

Effective date: 20231209

Ref country code: HR

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

Effective date: 20230809

Ref country code: GR

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

Effective date: 20231110

Ref country code: FI

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

Effective date: 20230809

Ref country code: AT

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

Effective date: 20230809

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

Ref country code: PL

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

Effective date: 20230809

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

Ref country code: ES

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

Effective date: 20230809

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

Ref country code: SM

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

Effective date: 20230809

Ref country code: RO

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

Effective date: 20230809

Ref country code: ES

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

Effective date: 20230809

Ref country code: EE

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

Effective date: 20230809

Ref country code: DK

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

Effective date: 20230809

Ref country code: CZ

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

Effective date: 20230809

Ref country code: SK

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

Effective date: 20230809