EP4155657A1 - Flüssigkeitsverteilungssystem für kühl- oder feuerlöscheinrichtung - Google Patents

Flüssigkeitsverteilungssystem für kühl- oder feuerlöscheinrichtung Download PDF

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Publication number
EP4155657A1
EP4155657A1 EP22197541.0A EP22197541A EP4155657A1 EP 4155657 A1 EP4155657 A1 EP 4155657A1 EP 22197541 A EP22197541 A EP 22197541A EP 4155657 A1 EP4155657 A1 EP 4155657A1
Authority
EP
European Patent Office
Prior art keywords
central axis
liquid
deflector
central
distribution system
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
EP22197541.0A
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English (en)
French (fr)
Other versions
EP4155657B1 (de
EP4155657C0 (de
Inventor
Roberto Eduardo Mosiewicz
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.)
Axial Fans Int Srl
Original Assignee
Axial Fans Int 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.)
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Publication date
Application filed by Axial Fans Int Srl filed Critical Axial Fans Int Srl
Publication of EP4155657A1 publication Critical patent/EP4155657A1/de
Application granted granted Critical
Publication of EP4155657B1 publication Critical patent/EP4155657B1/de
Publication of EP4155657C0 publication Critical patent/EP4155657C0/de
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Anticipated expiration legal-status Critical

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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
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/04—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet
    • B05B3/0417—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet comprising a liquid driven rotor, e.g. a turbine
    • B05B3/0425—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet comprising a liquid driven rotor, e.g. a turbine actuated downstream of the outlet elements
    • B05B3/0426—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet comprising a liquid driven rotor, e.g. a turbine actuated downstream of the outlet elements the liquid driven rotor being a deflecting rotating element
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A62C35/58—Pipe-line systems
    • A62C35/68—Details, e.g. of pipes or valve systems

Definitions

  • the present invention relates to a liquid distribution system for cooling or fire-fighting installations of the kind recited in the preamble of the first claim.
  • the present invention relates to a distributor of a liquid such as water, suitable for being connected to pipes included in a network of external distribution.
  • distributors Under the various kinds of distributors, atomisers and nebulizers are well known. These distributors are substantially configured to receive a fluid flow and convert it into a plurality of particles. Then, these particles are distributed rather uniformly on a surface.
  • the sprinklers are indeed delivering a liquid rain, generally used to extinguish fires, comprising a body, a thermosensitive element, a plug, an orifice and a baffle.
  • the baffle is generally installed on the body of the sprinkler, on the part opposite to the orifice.
  • the baffle substantially divides the flow of water discharged from the orifice, so as to warrant a higher extinguishing power.
  • Other distributors may instead comprise rotary baffle plates.
  • These rotary baffle plates are active elements, controlled to rotate around its own axis, and configured to distribute water in view of the centrifugal force distributed thereon.
  • the baffle plates comprise two opposed ducts connected to a central duct, wherefrom water flows to be discharged from the jointly rotating opposed ducts.
  • the described prior art has some important drawbacks. More particularly, the devices provided with atomizers or nebulizers require pressurized liquid or additional components for pressurization of the liquid reaching the outlet nozzle.
  • the devices provided with static baffle plates are generally not fully effective, while devices provided with rotary baffle plates comprise feeding means to control the rotary motion of the baffle plates, with obvious increase of both structural complexity and related costs.
  • the basic technical problem of the present invention is to provide a distributor of liquids for cooling or fire-fighting installations, adapted to substantially get round at least part of the above mentioned drawbacks.
  • Another important scope of the invention is to carry out a distributor of liquid for cooling or fire-fighting installations, which is simple and economic.
  • measures, values, forms and geometrical references when associated with words like “about” or other similar terms like “almost” or “substantially”, should be understood as excluding measurement errors or inaccuracies due to manufacture and/or production errors, and above all excluding a slight deviation from the associated value, measure, form or geometric reference.
  • these terms when associated with a value, preferably mean a deviation not higher than 10% of said value.
  • treatment refers to the action and/or process of a computer or similar device of electronic calculation, treating and/or transforming data represented as physical ones, such as electronic quantities of registers of an information system and/or memory into other data likewise represented as physical quantities inside information systems, registers or other devices to store, transmit or show information.
  • liquid distributor for cooling or fire-fighting installations is globally indicated with reference number 1.
  • the distributor 1 may also be equally used inside a cooling plant or inside a fire-fighting installation.
  • the distributor 1 is fitted for supplying water in the form of jets and/or droplets made by acting on the water flow hitting the distributor 1.
  • the distributor 1 is suitable for being connected to pipes included in an external hydraulic distribution network, so as to supply continuously the water conveyed thereinto from the external hydraulic network.
  • the distributor 1 comprises at least a duct 2.
  • Duct 2 is preferably configured to convey a liquid along one direction. More particularly, duct 2 conveys the fluid parallel to or along its central axis 2a.
  • Central axis 2 is the axis around which duct 2 is mainly developed. Therefore duct 2 is substantially a tubular body extending along the central axis 2a.
  • Conveyance is preferably carried out passively.
  • the fluid i.e. water
  • duct 2 autonomously preferably by gravity. Therefore, in this connection, central axis 2a of duct 2 is suitable to be arranged at right angles to ground, when the distributor 1 is being used.
  • Duct 2 may also be a single piece, or may include a tubular container 20, inside which an extractible cartridge 21 may be arranged.
  • the tubular container 20 is a containing element preferably including a lower border, namely at an end facing the ground and configured to prevent the cartridge 21 to slide downwards. Said cartridge may be inserted into the tubular container 20 and removed therefrom, by causing the cartridge to slide along the central axis 2a. Therefore, the cartridge may be shaped externally along the tubular container 20 and may define a variable internal opening.
  • duct 2 and consequently the tubular container 20 and the cartridge 21 may define either a cylindrical or most preferably truncated conical shape.
  • the distributor 1 comprises also a concentrator 3.
  • the concentrator 3 substantially is a component suitable for directing the fluid into a predetermined concentration area 3a.
  • a concentration area 3a is substantially an area that can be defined along a plane transversal to the central axis 2a. More particularly, the concentration area 3a is defined in a main plane 2b at right angles with the central axis 2a.
  • the plane is a virtual element on which the concentration area 3a my still virtually be defined.
  • the concentrator 3 as a structure is integrally constrained to duct 2, and is spaced from duct 2 along the central axis 2a. Therefore, the fluid falling from duct 2 hits the concentrator 3 and is sent to the concentration area 3a.
  • the concentrator 3 is just configured to concentrate the liquid in the concentration area 3a.
  • the constraint between duct 2 and concentrator 3 may be carried out by different modes.
  • the distributor 1 may comprise a frame 5.
  • Frame 5 substantially is a support and connection element for duct 2 and concentrator 3. Therefore, frame 5 may ne a further component to be constrained to duct 2 and concentrator 3, or it may be integral with duct 2, more particularly the tubular container 20, and with concentrator 3. Thus, in turn, at least a portion of duct 2 and concentrator 3 may be integral.
  • Frame 5 preferably is U-shaped and therefore is configured to mutually connect duct 2 and concentrator 3, surrounding said concentrator 3.
  • Concentrator 3 may comprise an envelope 32 and two arms 33.
  • the envelope 32 substantially is a preferably at least partially hollow body extending along the main axis 2a.
  • envelope 32 preferably comprises a first barrel shaped portion 32a adjacent to deflector 4 and a second portion 32b defining a paraboloid shape. Therefore, envelope 32 defines a shape like an aircraft fuselage, with the front portion defined by the second portion 32b. Thus, the liquid coming from duct 2 substantially hits the second portion 32b and flows along the first portion 32a before falling on the deflector 4, like air flows around an aircraft fuselage.
  • Arms 33 are preferably arranged transversal, for instance perpendicular to main axis 2a. Moreover, arms 33 are integrally constrained to envelope 32 and frame 5 at the opposite sides of envelope 32.
  • arms 33 define sections on planes parallel to main axis 2a, like wing contours with a leading edge facing duct 2.
  • the concentration area 3a substantially encloses an area including at least envelope 32 and arms 33.
  • the distributor 1 comprises also a deflector 4.
  • Deflector 4 preferably has a labile constraint with concentrator 3. More particularly, deflector 4 may rotate around the main axis 2a, for instance in respect of the concentrator 3.
  • the deflector 4 is arranged in connection of fluidic passage with the concentration area. This means that the deflector 4 is substantially adapted to receive the liquid passing through the concentration area 3a in order to deflect the direction of movement of said flow. Indeed, the deflector 4 is configured to deflect the liquid along radial trajectories 4a.
  • the radial trajectories 4a are at least partially transversal to the central axis 2a. Indeed, the radial trajectories 4a extend at least from the central axis 2a to the outside, distributed around the central axis 2a. However, the radial trajectories 4a might also extend partially parallel to the central axis 2a. Preferably, the radial trajectories 4a are extending both transversally and partially around the central axis 2a.
  • the deflector 4 comprises a plurality of blades 40.
  • the blades 40 are extending along radial trajectories 4a.
  • blades 40 are configured to push, when hit by liquid, deflector 4 to rotate around the main axis 2a. Therefore, the deflector 4 is thrusted to rotate, preferably by gravity, by the liquid incoming from the concentration area 3a. With such a rotation, the deflector 4 allows the liquid to branch out along the radial trajectories, thus being subdivided into a plurality of streamlets, then divided into droplets.
  • the radial trajectories 4a are curvilinear and diverging in respect of the central axis 2a. More particularly, they are advantageously diverging to ground.
  • the radial trajectories 4a are at least partially helicoidal.
  • the blades 40 have walls that extend at least partially in a helicoidal way.
  • the deflector 4 comprises also a plurality of distribution surfaces 41.
  • the distribution surfaces 41 are preferably transversal and integral with blades 40.
  • the distribution surfaces 41 a are substantially diverging from the central axis 2a, and each surface is configured to connect two adjacent blades 40. Therefore, the distribution surfaces substantially define the radial trajectories 4a, because the liquid flows on them, once the concentration area 3a is passed.
  • the deflector 4 moreover comprises a plurality of fins 42.
  • Each fin 42 preferably is transversal and integral with a corresponding distribution surface 41.
  • each fin 42 extends along curvilinear trajectories radially to the central axis 2a.
  • each fin 42 may extend substantially along a corresponding radial trajectory 4a.
  • the fins 42 extend at the free end of the distribution surfaces 41. In this way, the liquid reaches the fins 42 shortly before leaving the deflector 4.
  • the distributor 1 preferably is provided with some measures. More particularly, the concentrator comprises a first central body 30.
  • the central body 30 is substantially aligned with the central axis 2a. Thus, it is an oblong element like for instance a pivot.
  • the first central body 30 comprises a stem 30a. Stem 30a is therefore aligned with the main axis 2a.
  • the first central body 30 comprises also two heads 30b.
  • the heads 30b substantially are mutually separated by the stem 30a, and therefore are mutually spaced along the main axis 2a. Moreover, the heads 30b define greater sections along planes perpendicular to the main axis 2a in respect of the stem 30a.
  • the first central body 30 is particularly integral with the envelope 32. Still in greater detail, envelope 32 comprises the first central body 30, or he first central body 30 extends along the main axis 2a surrounded by envelope 32.
  • Deflector 4 comprises instead a second central body 43.
  • the second central body 43 is preferably hollow.
  • the second central body 43 is the element around which blades 40 and distribution surfaces 41 are extending.
  • the second central body 43 is configured to be connected to the first central body 30. Therefore, the latter is so inserted in the second central body 43 in such a way that the second central body 43 may rotate in respect of the first central body 30.
  • the cavity of the second central body 43 extends along the main axis 2a so as to receive the first central body 30.
  • heads 30b of the central body 30 are so configured as to contact the central body 43, so that between stem 30a and second central body 43 there is a gap 31.
  • the gap 31 substantially is the enclosed space between stem 30a, heads 30b and second central body 43.
  • the second central body 43 constrained with the first central body 30, is also substantially enclosed at least partially in envelope 32.
  • the second central body 43 might also not be a single piece, and as shown in Fig. 3 , may comprise two hollow elements being concentric with the central axis 2a, where the inner element, shown without the outer element in Fig. 4 , is suitable for being connected to the first central body 30, thus providing for the gap 31.
  • the outer element may include an upper shoulder in order to block the translation of the inner element in respect of the central axis 2a.
  • the second central body 43 may also comprise further elements, for instance a washer and/or a bolt, as shown in Fig. 4 , to be constrained to the first central body 30 under said first central body 30, to block together with the shoulder of the first element, the translation of the inner element in respect of the outer element.
  • the envelope 32 is configured to surround the second central body 43, without contacting the second central body, when the distributor 1 is being used. In this way, between envelope 32 and second central body 43 there is provided a leak 34.
  • This leak 34 therefore is an opening through which at least a portion of liquid may percolate, so as to lubricate said central bodies 30, 43.
  • the operation of the distributor is the following: In substance, the liquid is conveyed by gravity throughout the duct 2 parallel to main axis 2a; then the liquid reaches the concentrator3, where it hits the second portion 32b of envelope 32 and the arms 33, being conveyed to the concentration area 3a. After the concentration area 3a, the liquid stands on the blades 40, so as to cause the deflector 4 to rotate, and on the distribution surfaces 41 so as to be radially conveyed along the radial trajectories 4a through the fins 42. The liquid coming out from the deflector 4 is then distributed in the form of droplets and/or intermittent stream lets.
  • the distributor 1 attains important advantages. Indeed, the distributor 1 of liquid for cooling or fire-fighting installations allows to deliver liquid undergoing any pressure, advantageously through simple fall by gravity. Moreover, the distributor 1 defines a simple and economic structure. Additionally, the distributor 1 is extremely efficient and does not need active control or feeding devices that may burden the global structure.
  • the leak 34 allows to keep the bodies 30, 43 always lubricated.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Nozzles (AREA)
EP22197541.0A 2021-09-28 2022-09-23 Flüssigkeitsverteilungssystem für kühl- oder feuerlöscheinrichtung Active EP4155657B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102021000024791A IT202100024791A1 (it) 2021-09-28 2021-09-28 Distributore di liquido per impianto di raffreddamento o anticendio

Publications (3)

Publication Number Publication Date
EP4155657A1 true EP4155657A1 (de) 2023-03-29
EP4155657B1 EP4155657B1 (de) 2025-11-12
EP4155657C0 EP4155657C0 (de) 2025-11-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP22197541.0A Active EP4155657B1 (de) 2021-09-28 2022-09-23 Flüssigkeitsverteilungssystem für kühl- oder feuerlöscheinrichtung

Country Status (2)

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EP (1) EP4155657B1 (de)
IT (1) IT202100024791A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117861125A (zh) * 2024-03-12 2024-04-12 四川特威特消防科技有限公司 一种适用于压缩空气泡沫液的高速旋转喷射装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5152458A (en) * 1991-06-13 1992-10-06 Curtis Harold D Automatically adjustable fluid distributor
US20040195359A1 (en) * 2003-03-13 2004-10-07 Curtis Harold D. Fluid distributing apparatus
US20200215557A1 (en) * 2019-01-09 2020-07-09 Rain Bird Corporation Rotary Nozzles and Deflectors

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5152458A (en) * 1991-06-13 1992-10-06 Curtis Harold D Automatically adjustable fluid distributor
US20040195359A1 (en) * 2003-03-13 2004-10-07 Curtis Harold D. Fluid distributing apparatus
US20200215557A1 (en) * 2019-01-09 2020-07-09 Rain Bird Corporation Rotary Nozzles and Deflectors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117861125A (zh) * 2024-03-12 2024-04-12 四川特威特消防科技有限公司 一种适用于压缩空气泡沫液的高速旋转喷射装置

Also Published As

Publication number Publication date
IT202100024791A1 (it) 2023-03-28
EP4155657B1 (de) 2025-11-12
EP4155657C0 (de) 2025-11-12

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