EP2478965A1 - Améliorations portant sur la distribution d'eau vaporisée - Google Patents

Améliorations portant sur la distribution d'eau vaporisée Download PDF

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Publication number
EP2478965A1
EP2478965A1 EP12250010A EP12250010A EP2478965A1 EP 2478965 A1 EP2478965 A1 EP 2478965A1 EP 12250010 A EP12250010 A EP 12250010A EP 12250010 A EP12250010 A EP 12250010A EP 2478965 A1 EP2478965 A1 EP 2478965A1
Authority
EP
European Patent Office
Prior art keywords
water
outlet
shower head
vortex
outlet opening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP12250010A
Other languages
German (de)
English (en)
Inventor
Noel Michael Paul Murray
Philip Hickey
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.)
Applied Energy Products Ltd
Original Assignee
Applied Energy Products Ltd
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 Applied Energy Products Ltd filed Critical Applied Energy Products Ltd
Publication of EP2478965A1 publication Critical patent/EP2478965A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • 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
    • B05B1/3405—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 to produce swirl
    • B05B1/341—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 to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
    • B05B1/3421—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 to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
    • B05B1/3426—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 to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels emerging in the swirl chamber perpendicularly to the outlet axis
    • 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
    • B05B1/18—Roses; Shower heads
    • B05B1/185—Roses; Shower heads characterised by their outlet element; Mounting arrangements therefor
    • 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
    • B05B1/18—Roses; Shower 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
    • B05B1/26—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets
    • 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
    • B05B1/3405—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 to produce swirl
    • B05B1/341—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 to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
    • B05B1/3421—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 to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
    • B05B1/3431—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 to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves
    • B05B1/3436—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 to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves the interface being a plane perpendicular to the outlet axis
    • 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
    • B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
    • B05B7/0807—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets
    • B05B7/0846—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets with jets being only jets constituted by a liquid or a mixture containing a liquid

Definitions

  • the present invention relates to sprayed water distribution, in particular to improved sprayed water distribution from shower heads.
  • Conventional shower heads distribute water in a spray pattern therefrom through a plurality of holes. This forms a regular pattern of water distribution of droplets or a quite regular size. While such shower heads provide adequate distribution of water in higher flow environments, in conditions where there is only a low flow of water the water distribution, and in particular the wetted surface area provided by the water emitting from the shower head is poor and does not provide for a good showering experience.
  • a shower head having a shower head inlet for receiving a flow of water and at least two outlet openings, a vortex chamber associated with each outlet opening, each vortex chamber having a substantially tangential vortex inlet for receiving water from the shower head inlet and an axial vortex outlet leading directly to an outlet opening aligned with the axial vortex outlet, wherein the outlet openings are positioned such that, in use, water exiting each outlet opening impinges on the flow of the water emitting from at least one other outlet opening.
  • rotary movement of the water in the vortex induces the water to exit the outlet openings substantially as a continuous sheet of water prior to disintegrating into a spray and the outlet openings are positioned such that the water exiting from each outlet opening impinges on the flow of the water exiting from the other outlet opening prior to the continuous sheet of water disintegrating into a spray.
  • Impingement during the phase of the water flow prior to the flow disintegrating into individual droplets ensures maximum interference between fluid flow exiting the outlet openings.
  • the vortex chamber and outlet openings cause the rotating water exiting each outlet opening to, in use, follow a divergent/convergent flow path wherein the water initially diverges as it exits each nozzle and then converges back upon itself before dispersing in a spray and the water exiting from each outlet opening impinges on the flow of the water exiting from the at least one other outlet opening prior to the water converging back upon itself.
  • the flow path between the axial vortex outlet and the outlet opening may be outwardly tapered so that its diameter increases as the water moves towards the outlet opening.
  • water exiting each outlet opening impinges on the flow of the water emitting from at least one other outlet opening at a flow rate in the range of 2 litres per minute to 6 litres per minute. It is at these low flow rates that conventional type showers give particularly poor showering experiences and wherein the beneficial effect of the present invention is most advantageous. The effect of the present invention at these low flow rates is comparable to traditional type shower heads operating at higher flow rates.
  • the outlet openings each have a chamfered edge.
  • the diameter of the axial vortex outlet may be in the range of 10 to 90 % of the vortex chamber diameter, preferably in the range of 40 to 90%.
  • the distance between the axial vortex outlet and the outlet opening may be in the range of 1 to 3 times the axial vortex outlet diameter.
  • the outlet openings are radially arranged about a common mid point and the outlet openings are angled towards said mid point.
  • the angle may be in the region of 1 to 30 degrees, preferably 4 to 15 degrees.
  • edge to edge separation of the outlet openings is in the range of 3 to 6 times the outlet opening diameter.
  • each vortex chamber comprises a plurality of equally spaced tangential inlets.
  • the outlet openings comprise nozzles that extend from the shower head.
  • a shower head 2 having an inlet 4 for water, an handle 6 by which a user can hold the shower head, or by which it can be attached t a shower raiser rail in the conventional manner, and two outlet openings 8, 10 through which water can exit the shower head.
  • Figures 2 and 3 show similar shower heads with three and four outlet openings respectively. It will be appreciated by the skilled person that more outlet openings can be used.
  • water enters the shower head via the inlet 4 passes up the handle and splits into flow paths each feeding a vortex chamber 12 associated with each outlet opening 8, 10.
  • the outlet openings each 8, 10 have a chamfered inner edge 18. The water exits the outlet opening 8, 10 it does so in a convergent/divergent flow pattern.
  • the water initially diverges 14 and then converges 16 back in on itself.
  • the sheet of water will break down into random droplets (see Figure 6 ), either before the point of re-convergence or at the point of re-convergence, depending on the exact flow rate.
  • the outlet openings 8, 10 are spaced such that the flows from adjacent openings impinge on one another in this initial pat of the water flow before the sheet of water breaks down into random droplets, preferably in the divergent flow section 14. This flow impingement assists in the breaking down of the flow but also results in a spray distribution that is much more even. If for example the flows did not impinge then after the point of re-convergence the spray pattern of the shower head 2 would be that of two divergent rings of water. The impingement breaks this down and avoids potential "dry spots" within the spray pattern.
  • the angle and size of the chamfer 18 on the inner edge of the outlet openings can be modified to change the shape and size of the divergent/convergent spray pattern.
  • the exact dimensions required will be dependant on a number of factors including the flow rate of water, the size of the orifices and the separation of the orifices 8, 10 and can be achieved through empirical experimentation.
  • a two outlet shower head with outlet openings of 5mm diameter and 30mm edge to edge outlet separation with the outlets angled towards one another at 5 degrees.
  • outlet openings 8, 10 are angled slightly towards one another. This assists in the impingement of the water exiting the openings and helps concentrate water towards the centre of the spray distribution.
  • the vortex chambers 12 comprise a main cylindrical shaped chamber having a tangential inlet and an axial vortex outlet, the diameter of the axial vortex outlet is in the range of 40 to 90% of the vortex chamber diameter. From the axial vortex outlet a short length of flow path 20 leads to the outlet openings that have the form of small nozzles 22 the length of the flow path 20 will depend on the design parameters, flow rate etc but typically will be in the range of 1 to 3 times the axial vortex outlet diameter. If it is much longer then the rotational element of the water flow becomes decreased due to frictional losses as the water passes through the flow path 20.
  • the invention allows a showering experience of good quality using substantially lower flow rates, and thus consuming less water and energy to heat it with, than conventional showers. Not only, therefore, does the shower head enable improved showering where only a low flow rate of water is available but generally permits showering to be undertaken in a manner that conserves both energy and water, thereby benefitting the environment.
  • FIG. 7 an exploded view of the shower head 2 is shown comprising three main parts, the handle moulding 24, the spray head 26 and a distributor plate 28.
  • the distributor plate 28 When assembled the distributor plate 28 is sandwiched between the handle moulding and the spray head so that it is fully contained therein.
  • the spray head has two vortex chambers therein, each of which has a plurality of tangential inlet passages 32 leading thereinto and an axial vortex outlet (30).
  • the tangential inlet passages 32 ensure an even radial distribution of flow.
  • the distributor plate 28 takes the main flow and splits it into individual flows that enter each inlet passage 32 and pass therefrom into the vortex chambers. Seals 34 are placed between the distributor plate 28 and the spray head 26 to ensure a fluid tight connection.
  • the entire shower head is then held together by screws 36, although it may alternatively be secured together by other means, for example adhesives or plastic welds.

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EP12250010A 2011-01-22 2012-01-23 Améliorations portant sur la distribution d'eau vaporisée Withdrawn EP2478965A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1101162.4A GB2487430B (en) 2011-01-22 2011-01-22 Shower head with sprayed vortex water distribution

Publications (1)

Publication Number Publication Date
EP2478965A1 true EP2478965A1 (fr) 2012-07-25

Family

ID=43769499

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12250010A Withdrawn EP2478965A1 (fr) 2011-01-22 2012-01-23 Améliorations portant sur la distribution d'eau vaporisée

Country Status (2)

Country Link
EP (1) EP2478965A1 (fr)
GB (1) GB2487430B (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201913116D0 (en) * 2019-09-11 2019-10-23 Gjosa Sa A shower head insert

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998001229A1 (fr) * 1996-07-03 1998-01-15 Exell Trading Pty. Limited Ensemble tuyere pour tete de pulverisation
US20070246577A1 (en) * 2006-04-20 2007-10-25 Leber Leland C Converging spray showerhead
GB2462795A (en) * 2008-05-06 2010-02-24 Gary Philip Doyle A vortex atomising showerhead

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL107120A (en) * 1992-09-29 1997-09-30 Boehringer Ingelheim Int Atomising nozzle and filter and spray generating device
JPH11267059A (ja) * 1998-03-25 1999-10-05 Twinbird Corp シャワーヘッド
WO2009139069A1 (fr) * 2008-05-16 2009-11-19 株式会社初田製作所 Buse d’atomisation de brume du type assemblé et extincteur comprenant la buse d’atomisation de brume

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998001229A1 (fr) * 1996-07-03 1998-01-15 Exell Trading Pty. Limited Ensemble tuyere pour tete de pulverisation
US20070246577A1 (en) * 2006-04-20 2007-10-25 Leber Leland C Converging spray showerhead
GB2462795A (en) * 2008-05-06 2010-02-24 Gary Philip Doyle A vortex atomising showerhead

Also Published As

Publication number Publication date
GB201101162D0 (en) 2011-03-09
GB2487430A (en) 2012-07-25
GB2487430B (en) 2017-01-18

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