EP1268046B1 - Foam, spray or atomizer nozzle - Google Patents

Foam, spray or atomizer nozzle Download PDF

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Publication number
EP1268046B1
EP1268046B1 EP20010921366 EP01921366A EP1268046B1 EP 1268046 B1 EP1268046 B1 EP 1268046B1 EP 20010921366 EP20010921366 EP 20010921366 EP 01921366 A EP01921366 A EP 01921366A EP 1268046 B1 EP1268046 B1 EP 1268046B1
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EP
European Patent Office
Prior art keywords
nozzle
ducts
housing
inlet
characterized
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.)
Not-in-force
Application number
EP20010921366
Other languages
German (de)
French (fr)
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EP1268046A1 (en
Inventor
Manfred Rummel
Original Assignee
Manfred Rummel
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Filing date
Publication date
Priority to DE2000116926 priority Critical patent/DE10016926C2/en
Priority to DE10107826 priority
Priority to DE2001107826 priority patent/DE10107826B4/en
Priority to DE10016926 priority
Application filed by Manfred Rummel filed Critical Manfred Rummel
Priority to PCT/EP2001/003657 priority patent/WO2001076728A1/en
Publication of EP1268046A1 publication Critical patent/EP1268046A1/en
Application granted granted Critical
Publication of EP1268046B1 publication Critical patent/EP1268046B1/en
Application status is Not-in-force legal-status Critical
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/0018Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam
    • B05B7/0025Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam with a compressed gas supply
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F5/00Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F5/04Injector mixers, i.e. one or more components being added to a flowing main component
    • B01F5/0403Mixing conduits or tubes, i.e. conduits or tubes through which the main component is flown
    • B01F5/0405Mixing conduits or tubes, i.e. conduits or tubes through which the main component is flown for mixing more than two components; Devices specially adapted for generating foam, e.g. air foam
    • B01F5/0406Devices specially adapted for generating foam
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F5/00Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F5/04Injector mixers, i.e. one or more components being added to a flowing main component
    • B01F5/0403Mixing conduits or tubes, i.e. conduits or tubes through which the main component is flown
    • B01F5/0413Mixing conduits or tubes, i.e. conduits or tubes through which the main component is flown provided with a venturi element
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F5/00Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F5/04Injector mixers, i.e. one or more components being added to a flowing main component
    • B01F5/0403Mixing conduits or tubes, i.e. conduits or tubes through which the main component is flown
    • B01F5/0413Mixing conduits or tubes, i.e. conduits or tubes through which the main component is flown provided with a venturi element
    • B01F5/0425Mixing conduits or tubes, i.e. conduits or tubes through which the main component is flown provided with a venturi element characterized by the place of introduction of the main flow
    • B01F5/0428Mixing conduits or tubes, i.e. conduits or tubes through which the main component is flown provided with a venturi element characterized by the place of introduction of the main flow the main flow being injected in the central area of the venturi, creating an aspiration in the circumferential part of the conduit
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/0018Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam
    • B05B7/0025Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam with a compressed gas supply
    • B05B7/0031Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam with a compressed gas supply with disturbing means promoting mixing, e.g. balls, crowns
    • B05B7/0037Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam with a compressed gas supply with disturbing means promoting mixing, e.g. balls, crowns including sieves, porous members or the like
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F5/00Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F2005/0002Direction of flow or arrangement of feed and discharge openings
    • B01F2005/002Tangential flow, i.e. flow spiraling in a tangential direction in a flat plane or beltlike area
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F5/00Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F2005/0002Direction of flow or arrangement of feed and discharge openings
    • B01F2005/0037Characterised by the disposition of the feed and discharge openings
    • B01F2005/004Characterised by the arrangement of the feed openings for one or more flows, e.g. for the mainflow and the flow of an additional component
    • B01F2005/0045Characterised by the arrangement of the feed openings for one or more flows, e.g. for the mainflow and the flow of an additional component with feed openings at the circumference of the main flow

Abstract

The invention relates to a nozzle for foaming, spraying or atomizing especially liquid first media by means of a second, especially gaseous or gas-containing medium under pressure. The nozzle (1) has an outlet for the foam produced and comprises a housing (4) in which at least one channel (5, 5') extending radially, at an angle, tangentially, tangentially at an angle or perpendicularly tangentially inwards for feeding the second medium, and a first inlet (6) for feeding the media to be foamed are provided.

Description

The invention relates to a nozzle for foaming, spraying or misting in particular liquid first Media by means of at least one pressurized, second, in particular gaseous or gas-containing Medium, wherein at the nozzle an outlet for the generated Foam or spray is arranged.

It is known in the construction industry in a foam concrete Foam agitator or free-fall mixer made of foams manufacture.

The foam is directly in the reservoir area Generated and often has relatively long ways transported to the place of work, which creates a risk that the foam by different actions or due to the duration of transport collapses.

It is also known by means of spray containers, such as Spray cans or fire extinguishers to produce foam. This However, this is only possible as long as the respective container filled with the liquid medium and the propellant are. A variable setting of the foams is not feasible.

DE 195 37 239 C2 discloses a frothing nozzle, an inlet for the medium to be foamed and a Has inlet for gas. Furthermore, an annular gap and a Flow connection between the annular gap and the main flow channel educated. For inside the frothing nozzle foam is still provided an outlet, which is opposite to the inlet of the medium.

US Pat. No. 4,830,790 also discloses a foam-producing nozzle which is adjacent to an inlet and an outlet a turbulence generating element is provided. When turbulence generating element serves one with openings provided baffle plate, the downstream air intake openings are downstream.

From DE-OS 38 41 123 A1 discloses a nozzle mixing body for the concrete dry spraying in the form of a pipe socket known in which in the interior radially inwardly facing Holes are provided as injection elements.

Finally, from WO 82/01141 a frothing nozzle forth, which has an inlet opening for insertion of Pressurized water and an inlet opening for initiation, e.g. having a liquid detergent. The Liquids enter a main flow chamber whose end a nozzle is arranged. Following the Nozzle is an outlet opening. In the area of the nozzle there is an axially movable, pin-like Nozzle core, which moved to an active foaming position can be and in this position essentially in the nozzle. However, the nozzle core is axial pulled out of the nozzle, he is in a passive position, which generated a free flow of the Foam through the nozzle to the outlet channel allowed.

From DE-A-40 29 982 A1 is a ventilation nozzle for venting of Organically containing liquids, wherein a Liquid channel is provided, which over part of its length of surrounded by a completed annular chamber.

In DE-A-42 37 349 a device for foaming of Building materials described, with a between pipe sections usable and attachable by means of a pipe coupling pipe section is provided, whose end portions have the same clear diameter have the adjacent pipe sections.

The present invention is based on the object a nozzle for foaming, spraying or misting according to to form the preamble of claim 1 to that a reproducible quality of the foamed, sprayable or nebulizable material Location is possible and variably adjustable.

The task is performed by the nozzle with the features of claim 1. Advantageous developments and embodiments of the nozzle will become apparent from the dependent claims 2 to 11.

The nozzle according to the invention comprises a housing in which at least one radially inwardly directed channel to Supply of the second medium and an inlet to the supply line the foaming, first medium is provided. The second medium flowing in through the channel generates mixed vortexes with the first medium. Then kick the foamed media at the outlet or an associated one Lead to the respective application. The foam can so immediately before its use in the Aufschäumdüse be prepared, wherein the foam-producing media freely selectable, quality losses avoided and the Dry or Abbinderohdichte the foamed media are precisely adjustable. In addition, the nozzle is due their compactness and their relatively low weight easy to handle. In addition, is a continuous Foaming possible, whereby also materials processed that can not be well tolerated are. Finally, it is advantageous that the material not by pump pressure, but by gas pressure discharged, so not destroyed, but on the contrary aufokkert becomes.

In training of the nozzle is provided in the housing a to arrange annular component. The annular Component is designed as a reversible and replaceable component and the flow connection is as stated in claim 1. It is also a groupwise training of channels conceivable the channels being one group leaning against the channels of the other groups and extend obliquely to the main flow direction.

The annular component allows by its interchangeability when removed, clogged or soiled Channels easy to clean. For different purposes the annular component can be exchanged, optionally with one or more inside directed, preferably formed by round holes Channels, is provided. This can laterally on Housing at least a second inlet for supplying the be provided second or even further media.

It is further provided between the annular component and the housing of the nozzle to provide an annular space on the inwardly directed channels abut. That through the second inlet introduced second medium is so first distributed in the annulus and the channels in more even Distribution supplied.

The supply of the second medium can also have a infinitely adjustable annulus and / or via adjustable Channels are made so that the flow conditions, e.g. the flow pressure, the different media adaptable and the foaming is flexibly adjustable.

It is also possible, the inner diameter of both the first as well as the second inlet, the outlet as well of the annular member so adjust and to the ratio of liquid supply and foaming behavior adjust that the foaming result is always optimal.

The inlet for the first medium and the outlet for the Foamed material can be arbitrary, especially opposite one another be arranged in the main flow direction.

The inwardly directed channels can further counter and / or oriented in the main flow direction be, whereby the first-mentioned embodiment thinner and in the latter embodiment, more viscous mixtures, like cement water foaming mixtures can be foamed are and an additional acceleration in the Austragungsbereich is achievable, whereby a suction effect of the Pressure introduced gas the connected hose or the pipe is empty. Through an orientation the channels in the main flow direction can be the nozzle clean in an advantageous manner.

With particular advantage, the annular component can be different be designed and also reversible, so that he can be used for different purposes. By differently shaped annular components can the Foaming degree to be changed.

After further embodiment of the nozzle, the housing the same one, two or more parts be constructed. Of the annular component is in multi-part construction of the housing can be used in each case between the housing parts. The Housing parts of a housing can in their dimensions, i.e. in the cone length and / or diameters, identical be the same or different. Thus it is possible the nozzle depending on the application in one or the other Direction to use, without turning the ring-shaped component to have to.

Suitably, the housing parts of the nozzle overlapping together and about by screwing each other firmly be connected. Due to the partial overlap or screw connection the nozzle is stable around the foaming area built, at the same time the annular component through the two parts safe and firm in its length held.

The nozzle may further comprise a foaming heater Material or the media to be supplied. For example, a tempered foam can be improved Adhesion and curing properties as well as cleaning effects, Have setting properties and so on. Also is possible, in the exit area of the nozzle a UV lamp to arrange to be discharged there, foamed, e.g. Plastic material to harden. This can be, for example be beneficial if the nozzle becomes one Pipe coating is used because it is the foamed Material cures immediately after application.

It is understood that the nozzle with the reservoirs the individual media via lines (e.g., hoses) connectable is. Also, a dosing device for interference assigned by one or more output components which as a mixture (for example as the first medium) of the Nozzle or the discharge line are fed. This can in particular with regard to the material compatibility be problematic media appropriate.

Advantageously, at least one before or at the nozzle Pressure regulator and a flow regulator for defined Passage and flow rate of the respective medium be connected. Especially in the management of the second Medium is a pressure regulator and a flow regulator to control the Aufschäumprozesses appropriate.

According to further embodiment of the nozzle of this nozzle (I) e.g. a second nozzle (II) or an aftermixer switched on be. The foaming of different media takes place so by means of a previously generated in the nozzle I. Foam, the at least one inlet connected to the Nozzle II is deliverable. This embodiment is especially when foaming difficult foamable Materials and material mixtures advantageous. The second Medium is thus replaced by foamed material. The first frothing unit may be preferred for the Binding and dust-free transport of, e.g. Mineral fibers, Cellulose flakes and the like can be used. Likewise, a dust-free (re) binding or transport from, e.g. toxic, aggressive or explosive substances for further use or disposal conceivable.

Through the post-mixing can be a "spitting" or an irregular Discharge of materials are prevented. The remixer can be made in conventional, mechanical construction be designed.

In the following are further advantageous application or application areas the nozzle listed. These are e.g. binding of substances by means of foam, stationary or mobile and / or location-independent transport of substances by means of Foam, fire extinguishing technology, manufacturing waterproof Foams, long-term binders, gypsum-bound material mixtures for foams and granulates, open-pored foams with fixed structures and application of the nozzle for backfilling of pits, shaft structures, cavities, production of foams in food processing and processing, Pharmaceutical industry, cosmetics industry, detergents and cleaners industry.

With groupwise training of channels, these can either with separate inlet channels simultaneously or alternatively, or - if one of the housing parts has no inlet channel - through Rotating the annular member with an inlet channel get connected.

Extended by the arrangement of two groups of channels the scope of the annular component strong. Depending on how the groups of channels arranged are what diameter the channels have, which Angle they have and how large the number of channels is, results in different mixing or Foaming effects within the application, so that a variety of materials, foam densities or Spray fog densities can be generated. Optional are additional media either against the exit direction or be fed in the exit direction. Are two inlet channels present, the annular component in the nozzle housing needs not to be turned around. By closing one channel and feeding the medium through the other Channel is the injection direction relative to the Main flow direction upside down.

It is further provided with respect to the annular component form its channel arrangement mirror symmetry and the channels radial, tangential, obliquely tangential or perpendicular tangentially open into the annular component allow. This is recommended when the different Groups of channels to be used, the Injection direction of the medium to change, e.g. turning around.

The annular member may also be with at its ends be understood to mean two circumferential annular spaces whose open Groove outside with channels aligned. The annular spaces can a wedge-shaped, rectangular or round cross-section show what the deflection of the medium in Direction of the channels is advantageous. The annulus bottoms form at wedge-shaped annuli, e.g. Wedge surfaces that from the end faces of the annular member to the inlet ports of the channels.

After further development of the nozzle when using of two housing parts both with the channel of the annular Component axially aligned inlet and outlet ports to have. It is also possible that a first housing part one with the channel of the annular member axially has aligned outlet or inlet channel and the other Housing part provided with a blind hole-like mixing chamber is, in which laterally the first inlet opening occurs. Such a design is, e.g. for spray cans suitable, the entire nozzle is then miniaturized. Appropriately, with the channel of the annular Component aligned inlet and outlet ports to their outlet ends expand conically or trumpet-like.

At the inner end of the outlet channel can continue with a a plurality of openings provided grid or sieve be set to further promote foaming. Also, the two housing parts are constructed in such a way that with different angles of rotation to each other can be mounted. Overall, a round, polygonal or square cross-sectional shape for the housing parts be provided. By mounting with different Rotation angles can be the relative positions of the Select inlet channels to each other freely, so that the nozzle especially is easily adaptable to their environment elements.

Finally, an alternative nozzle is the simplest Training by the arrangement of a tubular housing for the nozzle, with a frothing zone and with each one formed by the central opening, coaxial with each other arranged inlet and outlet for the passage of the first medium and at least one oblique with a pointed one Angle a formed in the housing wall and in the central opening of the housing in the region of the foaming zone opening channel to the supply of the second medium is provided.

Alternative nozzles are by one-piece designs the same as shown in FIGS. 8 - 13 given.

The invention is explained in more detail with reference to advantageous embodiments in the drawing figures. These show:

Fig. 1
a nozzle in the cut,
Fig. 2
a schematic diagram of a nozzle,
Fig. 3
a schematic representation of another embodiment of a nozzle,
Fig. 4
a schematic representation of another embodiment of a nozzle for various application methods,
Fig. 5
a nozzle according to another embodiment in section,
Fig. 6
a nozzle according to a modified embodiment in section,
Fig. 7
a nozzle of another design in section,
Fig. 8
a sectional view of an alternative one-piece nozzle with several additional terminals,
Fig. 9
a sectional view of another alternative one-piece nozzle,
Figure 10
a sectional view of an alternative one-piece nozzle with tangentially guided channels,
Figure 11
a sectional view of another alternative nozzle,
Figure 12
a variant of a nozzle modified embodiment and
Figure 13
another variant of a nozzle.

The reference numeral 1 designates the nozzle in its entirety. The nozzle comprises a housing 4 with an annular Component 7, in which radially inwardly directed Channels 5 for supplying a second medium, in particular a gas, and a first inlet 6 to the supply line of the foaming medium and an outlet 2 are provided is. The gas flowing through the channels 5 generates a gas Verwirbelung with the by the first inlet 6 zugeleiteten Medium, so that it is foamed. The nozzle Can be used anywhere, with the foaming directly at the work site. The advantage is a consistent quality of the foamed material, at the same time a continuous foaming is possible.

The inwardly directed channels 5 are integrated in the component 7. As a result, the channels 5 in the component 7 are simple to bore. A second inlet 8, on the housing 4th is arranged laterally, serves the introduction of the gas, which flows into the inwardly directed channels 5. At the inlet 8 and the inlet and outlet 6, 2 are threads 22nd provided for tight connection of lines. Between the component 7 and the housing 4, an annular space 9 is formed, on which the inwardly directed channels 5 are adjacent. The gas flowing in at the second inlet 8 becomes thus initially distributed over the annular space 9 and flows then through the radial, oblique or tangential through the inwardly directed channels 5 in the interior of the component 7. The annular space 9 is infinitely adjustable, so that the flow conditions, e.g. the flow pressure variable are adjustable. The annular member 7 may be so be constructed that with the adjustment of the annulus 9 also simultaneously the inward channels 5 are adjusted. It is possible that both the length and the diameter of the channels 5 adjustable is.

The first inlet 6 and the outlet 2 are opposite arranged in the main flow direction 26, so that no Flow losses of the foamed material occur and a simple structure of the housing 4 allows becomes. The channels 5 are substantially opposite to Mainstream direction and the guided through them Gas generates an increased with the inflowing medium Verwirbelung, which in particular at low viscosity Media is necessary to achieve the desired foaming get.

The channels 5 are usually designed as round holes and thus enable optimal flow conditions. The annular member 7 can be flexibly exchanged be inserted into the housing. For different Applications it is possible, differently designed Insert components 7 in the housing 4.

The annular member 7 is on the inner wall of the Housing 4 sealed, so that an optimal turbulence ensured in the housing 4 and at the same time no Remove material from unwanted areas to the outside can.

The housing 4 of the nozzles of FIGS. 1, 5 and 6 consists of two parts 4 ', 4 ", between which the component 7 is arranged is. The two parts of the housing 4 are included screwed together via a thread 22 ', wherein the Component 7 between a circumferential projection 11 of the Part 4 "and the end face 12 of the part 4 'arranged is. The two parts 4 ', 4 "are simple and at the same time ensure a secure hold of the component 7. The above-mentioned seals 13 are between the one end of the component 7 and the circulating Projection 11 and the other end of the component 7 and the end face 12 is provided.

For appropriate applications can at the nozzle 1 a Heating device and / or a UV lamp be provided which, however, not shown in the drawing figures are. By means of the heater or the UV lamp may be the starting components or the foamed material heated or UV-irradiated.

The shown schematically in Fig. 2 as a flow chart Frothing unit comprises a nozzle 1, which via lines 15 with reservoirs 16 of the various starting components connected is. In the frothing unit according to Fig. 2.Wird example of water with foaming agent first mixed and then by means of compressed air to foam frothed. The nozzle 1 is a metering device 17, which with a hydraulic drive works, upstream. The Dosing device 17 has a hydraulic motor, i. the water pressure moves a dosing of a metering pump, whereby the Foaming agent is mixed. In addition to the admixture of Foamer also has the option of other media the metering device 17 or an adjoining To mix in line 15. Appropriately, the exact dosage can be set on the dispenser 17. For the supply of the gas is at the nozzle 1, a compressor 23 and an adjoining pressure regulator 18 connected to the defined supply of the gas. By means of the pressure regulator 18, the degree of foaming be set. The line 15 between the Pressure regulator 18 and the nozzle 1 has a check valve on to a backflow of the gas or the foamed Prevent material.

The nozzle 1 of the foaming unit shown in FIG 14 are essentially two different starting materials fed to the foaming. By means of the frothing unit 14 can use different foams with fixed Structures (similar, for example, pore lightweight concrete) for all hydraulically setting materials and material mixtures (e.g., cement, gypsum, lime, magnesite, etc.). The led out of the dosing device 17 water-foaming agent mixture is, e.g. a mortar mixer 24 fed. In the reservoir 16 is the foaming Material that is a separately mixed or optionally delivered by transport vehicles ready mix with foaming agent and various additives can be. This ready mix is by means of the pump 25 fed to the nozzle 1 and there by means of the incoming Foamed gas. The foamed material passes Finally, in a post-mixer 21, in which it is mixed with difficult to foam materials.

From Fig. 4 is a particularly advantageous variant of a Foaming unit 14 forth. To the provided there Nozzle 1 is a second nozzle 19 or foaming unit 20A connected, wherein the foaming by using the foamed material in the second nozzle instead of Compressed air or compressed gas takes place. The already prefoamed Material therefore passes through the inward-facing Channels 5, 5 'in the housing 4 of the nozzle 1 a. On the second inlet. 8, the material to be foamed is supplied. Thus, e.g. starting from a blowing machine, e.g. Mineral fibers, Zeluloserestflocken, dusts, powdered Materials etc. tied by the foaming or transported dust-free. On the second inlet 8 can also be difficult to foam materials and material mixtures are supplied to the foaming. The frothing unit 14 can also be used for dust-free Binding or transport, e.g. of toxic, aggressive or explosives for their further use or Disposal are used.

The nozzle 1 may be, e.g. also a mortar mixer or a Silo with a mixing pump upstream to be foamed Supply material of the nozzle 1. In the in Fig. 4 illustrated last possibility is a container provided with premixed material without foaming agent addition, wherein the premixed material by means of a Pump 25 is fed to the nozzle 1. Das in the nozzle 1 Foamed material is either directly by means of a Spraying hose discharged or previously a post-mixer 21 supplied.

The starting materials may be on their way through the Lines 15 more substances are added, what is illustrated by corresponding arrows.

When foaming, it is possible that at least one output medium before the supply line to the housing 4 or in the housing 4 itself is heated. This can be done, e.g. to an increased Foaming degree lead. However, it is also possible that the already foamed material is heated. The different media can be regulated the case 4 be fed to a desired mixing ratio to be able to adjust.

The nozzle 1 or the frothing units 14 can in particular for location-independent application of foamed Material are used. So it is possible to use it with building materials to produce suburb with consistent quality, especially if this is on rough terrain or in higher floors of a building are needed.

In the first housing part 4 '(Figures 5 and 6) is located a first inlet channel 6, in the second housing part 4 '' is an outlet channel 2 is arranged. Both housing parts 4 ', 4 " are sealingly joined together and form between themselves an annular space 9, in which one with channels 5, 5 'as well a channel 20 versehener annular member 7 rests. The channels 5, 5 'for introducing at least one another medium or a mixture of other media are connected to further inlet channels 8, 8 'in connection.

The annular member 7 is a separately interchangeable Part. The channels 5, 5 'arranged in the component 7 are oblique to the main flow direction 26 of the media to be mixed within the component 7 educated. Furthermore, the channels 5, 5 'in two separate Groups arranged in the component 7. The channels 5 of a group are obliquely against the channels 5 'of other group and at the same time obliquely to the main flow direction 26 aligned. The groups of channels 5, 5 'are alternatively or simultaneously separated by two, In the housing parts 4 ', 4' 'arranged inlet channels 8, 8 'with the at least one medium under pressure acted upon. Depending on the desired foaming or degree of mixing can be a certain annular Component 7 are used, the appropriate arrangement of channels 5, 5 ', diameter of the channels 5, 5', number the channels 5,5 'and the like. Has.

By closing the one inlet channel 8 with a Blanking plug 27 (see Fig. 6) and feeding the medium through the other inlet channel 8 'is an injection the medium only against the main flow direction.

In both embodiments according to FIGS. 5 and 6 is the annular member 7 with respect to its channel arrangement formed mirror-symmetrical, which in particular is advantageous if the injection direction of the medium just to be turned over. The component 7 indicates its end circumferential annular spaces 28, 28 ', whose respective open groove outer sides 29 with the inlet channels 8, 8 'are substantially aligned. The annular spaces 28, 28 'have a wedge-shaped cross-section. This will be through the inlet channels 8, 8 'supplied air to the channels 5, 5' Directly and optimally forwarded. The annulus bottoms 30 form wedge surfaces of the end faces 31st of the component 7 to the inlet openings 29 'of the channels 5, 5 'run.

The axes of the channels 5, 5 'close with the Hauptströmunsrichtung 26 an acute angle α and ensure by the associated oblique entry of Injektierten medium a high foaming or mixing degree.

Depending on the desired foaming or mixing effect, can the angle a between the axes of the channels 5, 5 ' of the two groups relative to the main flow direction 26 be different. Likewise, the channels 5, 5 ' the two groups also have a different diameter to have. Furthermore, the number of channels 5, 5 'of both Be different groups.

As can be clearly seen in FIGS. 5, 6, the FIGS two housing parts 4 ', 4 "with their surrounding the annular space 9 End faces 32, 33 sealed to each other to an uncontrolled escape of the injected or the to prevent mixed media.

This is in the joint area 34 between the two housing parts 4 ', 4' 'a ring-like sealing element 35, in particular, an O-ring arranged. To get a high seal to reach, the two housing parts 4 ', 4' ' be tightened by screws and pressure on the End faces of the annular member 7 and on the Exercise sealing element 35.

In the embodiment of FIG. 5, the first Housing part 4 'one with the Kanal'20 of the annular Component 7 is substantially aligned inlet channel 6 and the second identical housing part 4 '' one with the channel 20 of the component 7 is substantially aligned outlet channel 2 on.

In the embodiment according to FIG. 6, the housing part 4 "one with the channel 20 is substantially aligned Outlet channel 2 and the housing part 4 'a blind hole-like Mixing chamber 36, in which the first side Inlet channel 6 enters. The mixing chamber 36 leads to a swirling of the injected medium in the channel 20 and thus influences the foaming or mixing behavior corresponding.

In particular, such a construction is for spray cans suitable. The whole nozzle 1 is then more advantageous Fashion miniaturized trained. Depending on requirements Of course, the channel 20 as outlet channel and the Outlet channel 2 serve as an inlet channel.

In both embodiments, the expand with the channel 20 of the component 7 aligned inlet and outlet channels 6, 2 in the housing parts 4 ', 4' 'outwardly cone-like and thus ensure optimal in these areas Flow conditions.

Foaming or misting or spraying is at the inner end of the outlet channel 2 in Fig. 5 with a plurality of openings 37 provided Element 38 is arranged.

The two housing parts 4 ', 4 "are in a plurality of Rotary positions mounted to each other, so that on the one hand the assembly is facilitated and the other the nozzle 1 especially easy to its environmental elements (e.g. can be adapted.

7 shows a nozzle with a housing 39 with inserted, annular member 40. There are inlet and outlet channels 41 and 42 for the first medium and / or foam intended. The channels 41, 42 are optionally by a Plug 43 closable. In the component 40 open channels 5 for the supply of the gaseous second medium.

The alternative nozzles of Figs. 8-13 have one-piece shapes Type on. Here, the dosage of the second medium via at least one inlet 8, not opens into an annulus, but directly with an oblique inwardly directed channel 5 is connected. This manages the medium radially, obliquely or tangentially in the channel space 20 of the nozzle. With several inlets 8, 8 ', 8' ' Depending on the intended use, this is a combination of the discharges (center radial, oblique or tangential) possible. The inwardly directed channels 5, 5 'can in all possible Angles open into the channel space 20 of the nozzle.

The inlets 8, 8 ', 8' 'of the nozzle of Fig. 8 can each be closed by blind plugs 27 as needed. Furthermore, the inlets are located on supply lines 50 for the second medium.

9 shows a blind-hole nozzle with two inlets 8, 8 ', for a second medium, one depending on the purpose can be closed by blind plugs 27.

Fig. 10 shows a section through Figs. 8 and 9 with tangential introduction of the second media into the channel space 20 of the nozzle.

11 and 12 show different variants of the media feed.

The nozzle 4 of FIG. 13 has the same training in itself as the nozzle of Fig. 8, in addition to those with the Channels 5, 5 'in communicating inlets 8, 8', 8 "further inlets 8" "and 8" "on the inlets 8 '' '' and 8 '' '' 'are on channels 5' '' and 5 '' '' to the Outlet channel 2, whereby the possibility exists on the exiting medium, e.g. a coating or Apply marking. The channels 5 'and inlets 8' are shown here offset by 90 °.

Claims (11)

  1. Nozzle for foaming, spraying or atomizing in particular liquid, first media by means of at least one pressurized, second, in particular gaseous or gas-containing, medium, an outlet for the foam or spray mist produced being arranged on the nozzle, and the nozzle comprising a housing in which obliquely inwardly directed ducts are provided for feeding in the second medium and a first inlet is provided for feeding in the medium to be foamed, and the obliquely inwardly directed ducts being integrated in an annular component arranged in the housing, characterized in that the annular component (7) can be turned and interchanged, the ducts (5, 5') can be arranged obliquely counter to the main flow direction (26) of the media mixed within the annular component (7) and the ducts (5, 5') can be arranged in two separate groups in the component (7), the ducts (5) of the one group being oriented obliquely with respect to the ducts (5') of the other group and obliquely with respect to the main flow direction (26), and the groups of ducts (5, 5') alternatively or simultaneously being able to be acted upon by at least one pressurized medium via two separate inlet ducts (8, 8') arranged in the housing parts (4', 4'').
  2. Nozzle according to Claim 1, characterized in that at least one second inlet (8) is arranged laterally on the housing (4) in order to feed the second medium into radially inwardly directed ducts (5).
  3. Nozzle according to one of the preceding claims, characterized in that an annular space (9), to which the inwardly directed ducts (5) are adjacent, is provided between the annular component (7) and housing (4).
  4. Nozzle according to Claim 3, characterized in that the annular space (9) and/or the ducts (5) is/are infinitely variably adjustable.
  5. Nozzle according to one of the preceding claims, characterized in that, in the case of a multipart construction of the housing, the component (7) is arranged between the housing parts.
  6. Nozzle according to Claim 1, characterized in that a metering device (17) is connected upstream of the nozzle (1), and in that lines for different starting components are provided on the metering device (17).
  7. Nozzle according to one or more of the preceding Claims 1 to 6, characterized by a positionally independent use of the same.
  8. Nozzle according to one or more of the preceding claims, characterized in that the nozzle (7) is of mirror-symmetrical design with respect to its duct arrangements (5, 5'), and in that the ducts (5, 5') lead radially, tangentially, obliquely tangentially or vertically tangentially into the duct (20) of the component (7) and have different diameters.
  9. Nozzle according to one or more of the preceding claims, characterized in that the first housing part (4'') has an outlet duct (2) or inlet duct (6) essentially aligned with the duct (20) of the component (7) and the other housing part (4') has a blind hole-like mixing chamber (36) into which the first inlet duct (6) or outlet duct (2) enters laterally.
  10. Nozzle according to one of the preceding claims, characterized in that the inlet or outlet ducts (6, 2), which are aligned with the duct (20) of the component (7), widen conically outwards in the housing parts (4', 4'').
  11. Nozzle according to one or more of the preceding claims, characterized in that the nozzle is designed as a single-part nozzle, and in that the inwardly directed ducts (5, 5') lead tangentially centrally and/or at all possible angles into the duct space (20).
EP20010921366 2000-04-05 2001-03-30 Foam, spray or atomizer nozzle Not-in-force EP1268046B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE2000116926 DE10016926C2 (en) 2000-04-05 2000-04-05 Apparatus for frothing
DE10107826 2001-02-16
DE2001107826 DE10107826B4 (en) 2001-02-16 2001-02-16 Foaming device
DE10016926 2001-02-26
PCT/EP2001/003657 WO2001076728A1 (en) 2000-04-05 2001-03-30 Foam, spray or atomizer nozzle

Publications (2)

Publication Number Publication Date
EP1268046A1 EP1268046A1 (en) 2003-01-02
EP1268046B1 true EP1268046B1 (en) 2005-05-25

Family

ID=26005192

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20010921366 Not-in-force EP1268046B1 (en) 2000-04-05 2001-03-30 Foam, spray or atomizer nozzle

Country Status (6)

Country Link
US (1) US7040551B2 (en)
EP (1) EP1268046B1 (en)
AT (1) AT296157T (en)
AU (1) AU4836601A (en)
DE (1) DE20105711U1 (en)
WO (1) WO2001076728A1 (en)

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Also Published As

Publication number Publication date
US20030150624A1 (en) 2003-08-14
DE20105711U1 (en) 2002-01-17
EP1268046A1 (en) 2003-01-02
WO2001076728A1 (en) 2001-10-18
AT296157T (en) 2005-06-15
AU4836601A (en) 2001-10-23
US7040551B2 (en) 2006-05-09

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