Classifications

• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
  • A47F3/00—Show cases or show cabinets
  • A47F3/001—Devices for lighting, humidifying, heating, ventilation
• • 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
  • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
  • B05B1/16—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening having selectively- effective outlets
  • B05B1/1627—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening having selectively- effective outlets with a selecting mechanism comprising a gate valve, a sliding valve or a cock
  • B05B1/1636—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening having selectively- effective outlets with a selecting mechanism comprising a gate valve, a sliding valve or a cock by relative rotative movement of the valve 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
  • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
  • B05B1/3026—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the controlling element being a gate valve, a sliding valve or a cock
• • 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
  • B05B15/652—Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits whereby the jet can be oriented
• • 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
  • B05B7/0012—Apparatus for achieving spraying before discharge from the apparatus
• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
  • A47F7/00—Show stands, hangers, or shelves, adapted for particular articles or materials
  • A47F7/0071—Show stands, hangers, or shelves, adapted for particular articles or materials for perishable goods
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
  • B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
  • B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
  • B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers

Definitions

• Mast for diffusing a fog of droplets including a deflector
• the invention relates to installations for diffusing a fog of nebulized droplets onto products.
• Document WO 2010/106276 in the name of the applicant, discloses such an installation associated with a display of food products used in sales premises and comprising diffusers that project a mist of water droplets over the products. . Such an installation preserves the freshness of the products, improves their appearance on the display and promotes their sale.
• the installation includes a mast with a cap at its upper end.
• the plug has internal conduits coinciding with the holes of the mast and having curved faces ensuring the orientation of the jet downwards so that it spreads over the products.
• An object of the invention is to provide a cap that is equally effective but does not have these disadvantages.
• a droplet mist diffusion mast which has at least one elongate opening parallel to a main axis of the mast, and comprises a flat wall capable of extending transversely to the axis. , between a main part of the mast and the opening, being located on the same side of the axis as the latter and by providing a communication between the main part and the opening through the mast.
• the wall forms a deflector which directs the flow of droplets upstream of the openings so that it emerges from the mast while being directed downwards and the products to be refreshed.
• the mast provided with such a wall is particularly simple to produce and may have a small mass.
• the elongate shape of the openings also promotes the diffusion of the fog jet downwards and the products in cooperation with the wall.
• the wall is adapted to extend perpendicularly to the axis.
• the wall can be configured to be inclined relative to the axis, we obtain good results when it is perpendicular.
• the openings are at least two in number.
• the mast comprises a post having the opening and a plug having the wall and mounted movable relative to the amount.
• the wall is part of a separate plug of the upright and movable, for example removable, relative thereto. In fact, the manufacture of the assembly is facilitated.
• the plug is rotatably mounted relative to the amount.
• the plug is able to close the opening or at least one of the openings, preferably all the openings simultaneously.
• the same plug can be used to prevent the diffusion by one of the openings or by all the openings of the mast.
• the cap is able to close at least one of the openings without simultaneously closing at least one other opening.
• the cap is also used to select the opening or openings of the mast for diffusing the fog by preventing diffusion by the other opening or openings.
• the plug has a lateral opening able to extend simultaneously opposite at least two of the elongated openings.
• the plug has a cylindrical inner face.
• the plug is particularly simple to manufacture.
• the plug has an inner end face of curved shape, a center of curvature is located on the same side of the face as the inside of the plug.
• Such a face also favors the orientation of the fog jet down at the outlet of the openings towards the products.
• the wall has a circumferential inner edge of circular shape centered on the axis.
• This edge provides an opening in the wall which also promotes the proper orientation of the jet.
• the ratio between outer and inner circumferential radii of the wall is between 1, 5 and 2.5, and is preferably 2.
• angle ⁇ measures the angle formed by the set of jets in horizontal projection, the mast occupying the top of the angle.
• angle ⁇ measures the angle formed by the set of jets in horizontal projection, the mast occupying the top of the angle.
• angle ⁇ measures the angle formed by the set of jets in horizontal projection, the mast occupying the top of the angle.
• the larger the angle ⁇ the wider is the diffusion of the jet on the products.
• a good compromise is made between the values of these angles with the aforementioned range, particularly if the ratio is 2. It can be provided that the cap is made in one piece, without any removable part. But we can also realize it as a dismountable assembly of several pieces.
• a plug is also provided for a mist misting installation, which comprises:
• a flat wall extending transversely to a main axis of the plug, between the opening and the end, on the same side of the axis as the opening.
• This cap can be part of a mast as mentioned above.
• a droplet mist diffusion installation which comprises a mist mist generator and at least one mast according to the invention and / or at least one plug according to the invention.
• FIG. 1 is a perspective view of an installation according to the invention
• Figure 2 is an exploded perspective view of the amount and the plug forming the mast of the installation of Figure 1;
• - Figure 6 is an axial sectional view of the mast of Figure 2 in the assembled state
• - Figure 7 is a cross-sectional view along the VII-VII plane of the mast of Figure 6;
• FIGS. 8 and 9 are views respectively in elevation and from above the mast of Figure 1 showing the orientation of the jet.
• a facility 2 for presenting food products This is a piece of furniture forming in this case a table. In this example, this piece of furniture is used in a place of sale of products.
• the products are, for example, fresh products such as fruits and vegetables.
• the facility can also be used for other fresh food products such as meat or fish. It is also applicable to food products such as cheese and more generally to any product sensitive to drying, for example flowers.
• the piece of furniture here forms a display and comprises in the upper part a display 6 of rectangular shape in plan.
• the display includes a bottom wall and is open at the top so that the products can be viewed or picked up by the public passing by the display stand.
• the furniture includes means for the diffusion of a fog of nebulized water droplets, above the products and up to them in order to preserve the freshness.
• These means comprise a vertical mast 8 and equipment 11 for generating the mist of water droplets and its routing to the mast.
• This equipment includes a power supply box that supplies power to a fog generator.
• the latter comprises one or more ultrasonic transmitters equipped for example with an acoustic concentration nozzle for the production of mist formed by nebulized water droplets suspended in an air flow.
• the generator is supplied with water by a suitable means. Such a generator is known in itself from FR-2 788 706.
• the installation comprises ducts 10 by means of which the fog produced by the generator or generators is transmitted to the mast at a lower axial end thereof. latest.
• the assembly is provided with an unillustrated control box for controlling and adjusting the operation of the furniture.
• the housing allows in particular to adjust the ventilation speed, that is to say the speed of the air forming part of the fog, the nebulization power and other parameters of the machine (cycle, safety threshold, etc. .).
• the mast 8 which comprises in the present example an amount 12 and a plug 14 connected to the amount.
• the amount 12 here has a rectilinear elongated shape whose longitudinal axis 16 extends in the vertical direction.
• the amount 12 has a cylindrical side wall 18 with a circular section in a plane perpendicular to the axis.
• the wall has openings 20 elongated preferably in the vertical direction that is to say that of the axis 16.
• the openings here are three in number but could be expected a number of openings equal to 1, 2, 4 or higher.
• the openings are identical to each other and regularly spaced a half turn around the axis 16. They all extend to the same height. These characteristics of openings are here given by way of example and are to be adapted case by case according to the desired results.
• the amount is open at its upper axial end 22.
• the plug 14 has a generally symmetrical shape of revolution about its main axis which is the axis 16 when the plug is received in the amount.
• the plug 14 comprises a cylindrical side wall 24 of circular section in a plane perpendicular to the axis 16.
• This wall has a shoulder 26 located approximately halfway between the lower axial ends 28 and 30 of the cap.
• the outer cylindrical face 32 of the wall 24 has a smaller diameter in its lower portion located under the shoulder than in its upper portion located above.
• the shoulder on the other hand, is not visible inside the plug so that the cylindrical inner face 34 with circular section of the wall 24 has a diameter that is unchanged over its entire height from one to the other of the axial ends. This face delimits an internal cavity 37 of the plug.
• the side wall 24 has a window or opening 36 delimited by upper and lower edges inscribed in planes perpendicular to the axis 16 and by rectilinear lateral edges parallel to the axis 16.
• the window 36 extends about a half turn around the axis 16 and communicates the cavity 37 with the outside.
• the window 36 has a height, parallel to the axis, in this case greater than or equal to the height of the openings 20. It also has an angular opening in a plane perpendicular to the axis 16 allowing the three openings 20 to come each integrally and simultaneously facing the window when the cap is received in the amount as will be seen later.
• the plug is closed at its upper end 30 by a curved wall 38 which in this case has two concentric outer and inner spherical faces whose center of curvature is located on the same side of the wall as the plug.
• the plug comprises a flat, flat bottom wall 40 which has planar upper and lower faces perpendicular to the axis 16. In the present case, it presents in the form of a semicircle shape defined in particular by circular outer circumferential 42 and internal 44 edges. , both concentric with the axis 16.
• the wall is thus recessed in the vicinity of the latter. It also has two radial edges 46 connecting the ends of the respective circular edges.
• the wall 40 extends over about half a turn and, in this case about a half turn, about the axis 16.
• the washer is fixed to the lower edge of the wall 24, at its lower axial end. 28, for example by welding points 48 illustrated in FIG. 4. Considering the side of the plug located to the right of the axis 16 in FIGS. 5 and 6 and in which the window 36 extends, we see that the washer also extends on this side of the axis.
• the washer is here contiguous to the window 36.
• the cap is sized so that it can be inserted through its lower axial end through the upper end of the upright to accommodate it.
• the plug is thus supported by the shoulder 26 on the edge of the wall 18.
• the diameter of the lower portion of the outer face 32 is chosen to be slightly smaller than the internal diameter of the wall 18.
• the face 32 has the same diameter as the outer face of the wall 18. This is a removable assembly of the cap on the amount.
• the stopper and the upright are arranged so that, when assembled in this manner as shown in FIG. 6, the stopper is rotatable relative to the upright around the axis 16.
• the wall 40 then extends perpendicularly to the axis between the window 36 above and the main part 13 of the mast below, connected to the equipment and which extends upstream of the plug with reference to the flow of fog.
• This same wall 40 provides a communication between the equipment 11 and the main part 13 of the mast on the one hand and the window 36 on the other hand. It extends completely between the main part of the mast, upstream part, and the upstream lower end of the openings 36 and 20.
• FIG. 6 There is a position of the plug with respect to the upright, illustrated in FIG. 6, in which the window 36 extends opposite all the three openings 20 simultaneously, on the same side of the axis as these.
• the fog flow rising in the mast thus bypasses the wall 40, on the left in FIG. 6, then enters the cavity 37 to pass through the window 36 and exit the mast through each of the openings 20.
• a depression is thus created by the wall 40 at the base of the openings.
• the three respective fog jets are directed downwards by being inclined with respect to the vertical direction of an angle ⁇ as illustrated in FIG. 8.
• the jets form an assembly extending over an angle whose apex is occupied by the axis 16 and whose half value is equal to ⁇ .
• Re and Ri denote respectively the radii of the edges 42 and 44 of the washer.
• the ratio Re / Ri is chosen to be equal to 2. This value indeed gives a good compromise between the angles ⁇ and ⁇ and makes it possible to have jets particularly well oriented towards the products.
• the distance separating the wall 40 from the top of the inner face of the curved wall 38 is defined by h.
• the distance h also influences the geometry of the fog jet.
• the rotatable plug may also occupy a position in which the window 36 extends entirely on the side of the axis opposite to that occupied by the openings 20.
• the wall 24 closes all the openings 20 so that the upper end portion of the mast is completely closed by the plug.
• the mast does not spread fog.
• cap it is also possible to orient the cap around the axis 16 so as to coincide with the window 36 only one or two of the openings 20, the wall 24 closing the other (s). This selects the opening or openings that ensure the diffusion of fog, so that we choose the area of the display that receives the droplets.
• the openings 20 have for example a height of 20 millimeters and a width of 10 millimeters. It is preferable that their height does not exceed 20 millimeters so as not to decrease the speed of the fog too much. These dimensions are chosen in particular according to the diameter of the amount.
• the planes of vertical symmetry of two consecutive openings form an angle of 65 ° in this case.
• the plug can be given an outer diameter of about 30 millimeters.
• the radius Ri is here about 7 millimeters.
• the embodiment presented here has the advantage of being particularly simple. But the shape of the plug and that of the baffle may be adapted according to the dimensions of the amount, those of the slots, their position, the desired result in terms of the geometry of the jet (the angles alpha and beta) and in terms of speed and concentration of the droplets.
• the installation may be equipped with several masts scattering fog on different parts of the display.
• the mast or one of the masts may be rotatably mounted relative to the display.
• the mast comprises means for adjusting the height of the openings 20 and the plug relative to the display.
• the mast may be non-rectilinear. Its axis can be inclined relative to the vertical direction.
• the installation does not necessarily form a piece of furniture. It can be used in a place of storage or production, for example a place of wine making or cheese refining. It can constitute a manufacturing facility and / or packaging.
• the installation can also be used for the disinfection or humidification of products or volumes, for example products circulating on a carpets, especially on a production or packaging line.

Landscapes

• Catching Or Destruction (AREA)
• Nozzles (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=47263401

Family Applications (1)

Country Status (3)

Families Citing this family (3)

Family Cites Families (4)

• 2011
  • 2011-10-25 FR FR1159679A patent/FR2981585B1/fr active Active
• 2012
  • 2012-10-19 WO PCT/FR2012/052406 patent/WO2013060970A1/fr active Application Filing
  • 2012-10-19 EP EP12794363.7A patent/EP2771129B1/de active Active

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events