EP3338862B1 - Dispositif de dosage pour lutte contre l'incendie - Google Patents

Dispositif de dosage pour lutte contre l'incendie Download PDF

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Publication number
EP3338862B1
EP3338862B1 EP17202819.3A EP17202819A EP3338862B1 EP 3338862 B1 EP3338862 B1 EP 3338862B1 EP 17202819 A EP17202819 A EP 17202819A EP 3338862 B1 EP3338862 B1 EP 3338862B1
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EP
European Patent Office
Prior art keywords
dosing device
shaped
recess
dosing
movable element
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.)
Active
Application number
EP17202819.3A
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German (de)
English (en)
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EP3338862A1 (fr
Inventor
Lothar Knittel
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Tkw Armaturenvertriebs GmbH
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Tkw Armaturenvertriebs GmbH
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Publication of EP3338862A1 publication Critical patent/EP3338862A1/fr
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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C5/00—Making of fire-extinguishing materials immediately before use
    • A62C5/02—Making of fire-extinguishing materials immediately before use of foam
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C5/00—Making of fire-extinguishing materials immediately before use
    • A62C5/002—Apparatus for mixing extinguishants with water

Definitions

  • the present invention relates to a dosing device for a fire-extinguishing device or for a fire-extinguishing system for mixing an additive into an extinguishing water stream and a use of the dosing device.
  • Admixers are used to introduce liquid extinguishing agent additives in an adjustable mixing ratio into an extinguishing water flow. An extinguishing foam is then produced from this water-extinguishing agent mixture. Precise admixing or achieving a certain amount of foaming agent in the foaming agent-water mixture is extremely important for foam generation in order to obtain extinguishing foam with a certain consistency.
  • an adjustable valve (metering valve) is usually installed in the foam concentrate intake line in order to be able to react to any necessary changes in the proportioning rate.
  • an admixer which has a control piston with passage bores for an admixing of the foam agent adapted to the amount of extinguishing water.
  • a sleeve with bores is used for fine dosing.
  • the DE 20 2004 009 297 U1 discloses a further proportioner with a metering valve which has a rotary regulator with an adjustment sleeve with an orifice, in order thereby to change the flow cross-section for the foaming agent flowing into the main channel.
  • DE 39 23 891 C2 describes a further admixer with an additive channel opening out vertically in the main channel for admixing a foaming or wetting agent, it being possible for a metering valve to be connected to the inlet bore of the additive channel.
  • a proportioner is described, where the proportioning takes place by means of a dosing sleeve, which has a plurality of over the circumference spaced metering holes contains.
  • an additive channel is connected to a main channel via one of the dosing bores or a dosing opening and an associated orifice opening.
  • EP 0 318 646 A2 describes a device for generating a water-foaming agent mixture for fire extinguishing purposes with a dosing device, in which a slider interacts with a funnel-shaped opening, whereby small amounts of foaming agent can be metered.
  • the WO 82/01141 A1 and the U.S. 5,996,700A devices for liquid admixing with a movable piston are known. Also describes the GB 1 025 456 A a device for generating foam with a movable hollow piston with peripherally arranged lateral openings which are located in the vicinity of one end of the piston and through which a medium enters the inner cavity of the hollow piston.
  • a proportioner with a metering valve which has a cylindrical body with an open cavity for a coarse metering and a control piston with bores for a fine metering, is from DE 10 2006 026197 A1 famous.
  • a foam metering system with a cylindrical hollow chamber, which has lateral inlet openings, and a movable regulating element for changing the space through which the hollow chamber flows in the WO 2015/061824 A1 described.
  • Proportioners used to be designed for proportioning rates between 1% and 6% Today, proportioning rates of 0.1% to 6% are required. This requires sufficient precise dosing devices on the proportioners. This level of accuracy is usually not achieved with conventional proportioners.
  • the invention is therefore based on the object of creating an alternative dosing device or dosing device for a fire-extinguishing device for admixing an additive, for example a foaming agent or wetting agent, into a flow of extinguishing water.
  • an additive for example a foaming agent or wetting agent
  • the dosing device for a fire extinguishing device or for a fire extinguishing system for mixing an additive into a flow of extinguishing water contains an element which can be moved in a cavity and which has at least one depression with a lateral opening at one end and the wall of the cavity has an area in which the lateral opening of the depression is completely covered or closed (covering or occluding area, covering zone), and an area in which the lateral opening of the depression is not covered and is free for a passage of the additive (uncovering or open area, open zone) wherein the movable element is movable from the occluding region to the open region and the admixing rate of the additive depends on the position or displacement of the movable element.
  • the recess has only one opening to the top or face at one end of the movable member and to the side or a side face of the movable member.
  • the dosing device generally includes an adjusting device or control device for dosing one liquid into another liquid.
  • the liquid to be metered usually contains an additive.
  • the additive is, for example, a foaming agent or wetting agent.
  • additive encompasses a liquid containing additives.
  • the dosing device contains a channel for the passage of the additive, which is referred to as a dosing channel.
  • This channel leads from an inlet for the additive to an outlet opening (outlet) which is provided for the outlet of the additive.
  • the additive is generally conducted from the outlet of the dosing channel into a liquid flow, in particular into an extinguishing water flow.
  • the passage (flow) of the additive through the metering channel is changed with the aid of the adjusting device or control device of the metering device, for which purpose a movable element (throttle element) is used.
  • the throttle element acts at a point between the inlet and the outlet opening of the dosing channel. It is placed, for example, in the area of the outlet opening of the dosing channel, but can also be arranged in or on other areas of the dosing channel.
  • the throttle element is preferably designed as a closing and throttle element. However, it can also only be used to throttle the flow of liquid.
  • the throttle element has at least one depression at one end, which is referred to as the head part.
  • the depression is a notch-shaped, wedge-shaped, channel-like or channel-shaped depression.
  • the recess leads to the side of the header or runs along the side of the header.
  • the head part preferably has a cylindrical or bulbous shape.
  • the throttle element or its head part can also be cuboid and have a rectangular or square cross section.
  • the top (face) is the surface perpendicular to the cylinder axis.
  • the side is the area that corresponds to the cylinder surface for a cylindrical head part.
  • the depression on the head part of the throttle element is advantageously shaped in such a way that the width of the depression increases towards the top of the head part, ie the depression narrows with increasing depth along the side of the head part.
  • the recess has a V-shaped or wedge-shaped cross-section, ie the shape of the lateral opening of the recess is V-shaped, triangular or wedge-shaped, the lateral opening being widest at the top.
  • the indentation runs in a wedge shape from the middle of the upper side of the head part to the side of the head part, the indentation tapering to a point towards the middle of the upper side. Indentations with a V-shaped cross section, i.e.
  • V-shaped shape of the lateral opening are called throttle notches.
  • the indentations have a sloping course from the top to the side of the head part.
  • the head part of the throttle element has, for example, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 or more depressions, preferably throttle notches.
  • 3 or more indentations or throttle notches are arranged in a star shape. Notches running obliquely from the top to the side of the head part are very advantageous.
  • the Indentations eg throttle notches
  • the indentations can have a symmetrical or asymmetrical shape.
  • the indentations or throttling notches may be located across the entire top or only a portion of the top of the header. Indentations or throttling notches of different sizes, depths or geometries can be arranged in combination on the head part of the throttling element.
  • the indentations or throttle notches run, for example, radially outwards (towards the edge) from the center or a point between the center and the outer edge of the upper side of the head part, advantageously as notches running obliquely outwards.
  • indentations on the top of the head part with a lateral opening can be used on the side of the head part (lateral indentations).
  • a lateral indentation is, for example, a groove or notch.
  • a side indentation leads to the top of the headboard and has an opening at the top.
  • the function of the recess is explained using the example of a throttle notch with a V-shaped opening on the side of the head part of a throttle element.
  • the lateral opening is usually covered by a surface provided for this purpose in a cavity which is part of the metering channel or is connected to the metering channel.
  • this surface is formed by an area in the dosing channel, which completely or only partially covers the head part of the throttle element closely encloses. If the head part with the depression or depressions is moved out of this area (coverage area), the coverage of the depression can be reduced.
  • the free or open cross-section of the recess on the side of the head is changed depending on the position.
  • the passage of a liquid through a correspondingly shaped cavity can thus be changed by adjusting the throttle element.
  • the throttle element can be adjusted by a rotary movement, a movement along the dosing channel (stroke movement) or by a rotary movement combined with a movement along the metering channel (rotary/stroke movement).
  • the dosing device has a dosing channel with a cylindrical section enclosing the head part of a throttle element with a throttle notch.
  • the lateral opening of the throttle notch is completely covered (closed) by the wall of the dosing channel.
  • the cylindrical covering portion of the metering channel (covering area or zone) is followed by an extension or bulge (open zone), e.g., an annular extension, which is part of the metering channel.
  • the transition from the coverage zone to the extension forms a control edge.
  • a recess on a throttle element is a recess suitable for admixture.
  • a recess on a throttle element is usually such that proportioning rates of at least 0.1%, preferably of at least 0.2%, particularly preferably at least 0.5%. In most cases a well is designed for a proportioning rate of up to 6%.
  • a depression (e.g. a throttle notch) on the edge of the upper side of a throttle element has a depth of at least 1 mm, preferably at least 2 mm, particularly preferably at least 3 mm and very particularly preferably at least 5 mm. Indentations that are arranged in the lateral surface of a throttle element, e.g.
  • groove-shaped indentations in the area of the lateral surface of a cylindrical throttle element usually have a length of at least 1 mm, preferably at least 2 mm, particularly preferably at least 3 mm and very particularly preferably of at least 5 mm (measured from the edge of the top).
  • Such indentations generally have a depth of at least 1 mm, preferably at least 2 mm, particularly preferably at least 3 mm and very particularly preferably at least 5 mm.
  • Indentations in the form of a chamfer of an end of a choke element preferably have a straight edge at the top of the choke element (eg from the middle of the top or with an edge running diagonally at the top).
  • Indentations in the form of a bevel have, for example, a height (measured from the upper side or from the upper end of the throttle element) of at least 3 mm, preferably at least 4 mm and preferably at least 5 mm.
  • the throttle element (movable element) is usually connected or coupled to an adjustment element.
  • the throttle element can also contain the adjustment element.
  • the throttle element can be adjusted (moved) mechanically, hydraulically or pneumatically.
  • a mechanical adjustment can be made manually or with the help of a motor (e.g. electric motor).
  • the adjusting element is, for example, a part with a cylindrical body with a thread or a helical guide groove, which is used for adjustment.
  • the adjusting element can be part of a threaded drive, a spindle drive, a toothed drive or a drive known to those skilled in the art.
  • the adjusting element is preferably equipped with a latching function, whereby latching takes place at specific settings that correspond to a specific dosage.
  • a latching device can be provided in which one or more latching pins engage in depressions in certain positions of the adjustment element.
  • the throttle element can be permanently connected to the adjustment element or can form a unit or part with the adjustment element.
  • the throttle element can also be loosely coupled to the adjustment element, e.g. via a driver.
  • the metering device can be designed as a stand-alone, detachable or detachable part, e.g. as a metering valve with one or more fastening devices.
  • the dosing device or the dosing valve have, for example, a cylindrical base body with a dosing channel and an inlet and an outlet for the additive.
  • Fastening devices e.g. screw or bayonet connections, can be arranged at the input and output.
  • the adjustment element is equipped with or coupled to an actuation unit (e.g. hand wheel or rotary handle). The adjusting element acts on the throttle element.
  • the base body, throttle element and adjusting element are made of metal or plastic, for example.
  • Metals are e.g. copper-zinc alloys, especially brass, or stainless steel.
  • Suitable plastics are usually plastics that are not attacked by the additive. Parts made of metal or plastic can be partially or fully coated.
  • the dosing device has a simple structure, but allows very precise setting of the smallest proportioning rates. It can be produced inexpensively.
  • the dosing device is advantageously used in a proportioner.
  • the dosing device can be integrated or built into a proportioner.
  • the dosing device is referred to as a dosing device.
  • the term "metering device” as used herein includes metering devices.
  • the dosing device is, for example, an independent unit, which is intended for attachment or assembly to a proportioner, for example, or is otherwise used in a fire extinguishing device, or is integrated in a proportioner.
  • the dosing device can be part of the admixer (permanently integrated) or a separate part that can be exchanged or detached, for example.
  • the admixer usually has a base body with a main channel for the extinguishing water.
  • the main channel has an inlet for the additive, where the dosing device is generally placed.
  • An admixture for a fire extinguishing device or for a fire extinguishing system for admixing an additive that contains a dosing device according to the invention is therefore advantageous.
  • Another object of the invention is the use of a dosing device according to the invention in a fire extinguishing device or a fire extinguishing system, in particular in or on an admixer.
  • the dosing device can generally be used for dosing or admixing a liquid.
  • a movable element having a head part with one or more recesses having an opening in the side of the head part in a metering valve, in particular in a liquid metering valve is advantageous.
  • Such movable elements are for the dosing device according to the invention described.
  • the movable member is, for example, a movable member having one or more choke notches.
  • Fig.1 shows a dosing device 1 for a fire extinguishing device or a fire extinguishing system, in particular for an admixer or for use in the area of an admixer, with a base body 2 and a movable element (throttle element) 3.
  • the throttle element 3 is, for example, cylindrical or cuboid.
  • Metering device 1 is usually used for admixing or metering an additive, such as foaming agent or wetting agent, in a stream of extinguishing water.
  • additive includes a liquid containing an additive.
  • the metering device 1 can, for example, as Metering valve, in particular as an independent or separate part or as part of an admixer (integrated metering device), be designed.
  • the base body 2 has a cavity 4 for receiving the throttle element 3, an inlet 5 for the additive and an outlet 6 for the additive.
  • the dosing channel is located between input 5 and output 6 .
  • the cavity 4 and the throttle element 3 preferably have a cylindrical shape.
  • the throttle element 3 can be moved in the cavity along the axis AA (longitudinal axis). The movement of the throttle element 3 is used for adjustment, for example in order to set a specific dosing value or a specific proportioning rate. In general, the throttle element 3 is moved axially (along the longitudinal axis AA) for adjustment.
  • the movement can be, for example, a rotary movement, a lifting movement or a rotary movement and lifting movement.
  • the throttle element 3 is adjusted, for example, via an adjustment element (not shown here), which can be contained in the throttle element 3 .
  • the adjustment is made manually, for example, with the aid of a thread drive, a spiral groove drive, a spindle drive or a pinion drive.
  • a motor in particular an electric motor, can also be used for adjustment.
  • Pneumatic or hydraulic adjustment can also be provided.
  • An axial displacement of the throttle element 3 can be brought about by a rotary movement, for example in the case of a threaded drive, or by displacement.
  • the throttle element 3 has one end 3a (head part) with at least one depression 7, designed here as a throttle notch, and one end 3b (rear end).
  • the recess 7 runs from the side with the side opening 3c of the head part to the top (front side) at the end 3a. In the position of the throttle element 3 shown, the throttle element 3 closes the dosing channel in the area of inlet 5.
  • In 2 is the throttle element 3 of the metering device 1 of 1 adjusted in such a way that the lateral opening 3c of the recess 7 is no longer completely covered by the base body 2 and the dosing channel is slightly open at the edge 8 (called the control edge) of the base body 2 .
  • the free liquid path for the additive from inlet 5 to outlet 6 is marked by an arrow. Through the narrowing of the dosing channel in the area of the control edge 8 throttles the liquid flow.
  • a latching function can be provided, for example by latching points (e.g. hemispherical indentations) on the outside of throttle element 3 or an adjusting element, into which a pin or ball engages by spring force when adjusting to a specific position.
  • latching points e.g. hemispherical indentations
  • adjusting element e.g. a pin or ball engages by spring force when adjusting to a specific position.
  • FIG 3 shows the dosing device 1 of FIG 1 when fully open.
  • the control edge 8 releases the lateral opening 3c of the recess 7 completely.
  • the liquid flow (see arrow) between inlet 5 and outlet 6 is unrestricted or at maximum.
  • the proportioner 9 has a base body 2 in which the so-called main channel 10 is located and which extends from a water inlet end (1 9 in 10 ) to an extinguishant outlet end ( 20 in 10 ).
  • a coupling for connecting a fire hose or other fire brigade equipment For example, at the ends (inlet and outlet) of the main duct 10 there is a coupling for connecting a fire hose or other fire brigade equipment.
  • the dosing channel with outlet 6 of the integrated dosing device 1 opens into the main channel 10.
  • the base body of the dosing device 1 is part of the base body 2 of the proportioner 9.
  • an additive can be added to the flow of extinguishing water in the main channel 10 .
  • the main channel is equipped with a Venturi nozzle, for example, so that additive is sucked in from the main channel 10.
  • the additive reaches the metering device 1 via the inlet 5.
  • the additive flow can flow through the throttle element 3 reduced (throttled) or interrupted (closed).
  • the throttle element 3 is connected to an adjustment element 11 .
  • the throttle element 3 is screwed to the adjustment element 11 .
  • Throttle element 3 and adjusting element 11 are located in a cavity (corresponding to cavity 4 in Figures 1-3 ) of the base body 2. Throttle element 3 and adjusting element 11 are cylindrical in shape. Arranged on the adjusting element 11 are a spirally extending groove 13, an annular groove 12 for receiving a sealing ring 15 and a plurality of latching points (recesses or recesses for latching). A guide pin 14 engages in the spirally extending groove 13 for the drive. The groove 13 and guide pin 14 form a drive device (spiral drive).
  • the adjusting element 11 is equipped with an actuating element 17 (for example a hand wheel or rotary handle) for manual adjustment.
  • a latching element 16 (for example with a pin or a ball and a compression spring) is provided for latching into the latching points on the adjustment element 11 at specific positions of the adjustment.
  • the dosing of the additive i.e. the setting of the proportioning rate
  • the adjustment is made here by turning the operating element 17.
  • the additive inlet 5 is connected to a container with additive, for example via a coupling to which a hose or a line is connected.
  • a check valve can be provided in the area of the additive outlet 6 .
  • the proportioner 9 is usually equipped with one or more feet or attachment parts 18 .
  • proportioner 9 with metering valve 1 closed (proportioning rate 0%).
  • the dosing channel is closed. In In this position of the dosing element 3 , the addition of additive is interrupted.
  • figure 5 shows proportioner 9 with metering valve 1 fully open (proportioning rate almost 6%, maximum proportioning rate).
  • the side opening 3c of the throttle notches 7 is located outside the area between the additive outlet 6 and the control edge 8 and is no longer covered by the base body 2 .
  • the lateral opening 3c of the throttle notches 7 is free. In this position of the throttle element 3 , the admixing of additive is not throttled or is set to the maximum admixing rate (end position).
  • the arrow drawn in the area of the dosing channel shows the free path for the additive from input 5 to output 6.
  • the throttle element 3 of the in 4 and figure 5 shown proportioner 9 is in 6 (perspective view) and 7 (side view) shown.
  • the throttle element 3 shown in a perspective view corresponds to that in 4 and figure 5 shown throttle elements 3.
  • the throttle element 3 has a cylindrical head part with the top 3a (front face), which is followed by a fastening part with the end 3b .
  • the header has three indentations 7 leading from the center of the top 3a to the side of the header.
  • the recess 7 is notched here and is therefore referred to as a throttle notch.
  • the depressions 7 shown are notches with an oblique course.
  • the edge at the bottom of a recess 7 runs obliquely to the top 3a.
  • the area of the opening on the side of the headboard ( 3c in 4 and 5 ) has a triangular shape.
  • the throttle notch has a V-shaped cross section.
  • the shape, depth, opening angle and number of depressions 7 can be changed and are selected according to the desired dosing characteristics.
  • the throttle element 3 contains, for example, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 or more depressions 7. Different depressions 7 can be combined.
  • the throttle element 3 can contain depressions 7 with different shapes, depths or opening angles.
  • the indentations 7 do not have to start from the center of the upper side 3a (radial progression).
  • one or more Wells 7 run diagonally or sectorally. Indentations 7 with different depths (relative to the upper side 3a, ie the lateral length of the indentation) and widths are advantageously arranged on the head of throttle element 3 .
  • At least one deep and narrow indentation 7 can be combined with at least one less deep and wider indentation 7 on the throttle element 3 .
  • the deeper (laterally longer) depressions 7 when moving from the complete covering of the lateral openings (out of the covering zone) via the control edge 8 , first into the dosing zone (openings 3c partially or completely open).
  • a very small proportioning rate can thus be set much more precisely.
  • the fastening part (part of the throttle element 3 ) with the end 3b serves to fasten the throttle element 3 to the adjustment element 11.
  • the fastening part is equipped with a thread (not shown here), for example.
  • the edges of the throttle element 3 are advantageously beveled or rounded.
  • a bevel (chamfer) of the outer edge of the top 3a is shown in 6 shown.
  • This bevel (bevel) of the outer edge is not a depression within the meaning of the invention and is not used for admixture.
  • the throttle element 3 of 6 in 7 In the side view is the throttle element 3 of 6 in 7 to see.
  • the V-shaped depression 7 is arranged on the head part.
  • a thread In the area of the end 3b there is a thread which is used for attachment to the adjustment element 11 .
  • FIG 8 and 9 show the adjusting element 11 of the dosing device 1 of FIG 4 and figure 5 shown admixer 9 in a perspective view ( 8 ) and side view ( 9 ).
  • the cylindrical body of the adjusting element 11 has a helical groove 13 which adjusts the position of the throttle element 3 by turning the actuating element 17 .
  • the throttle element 3 performs a lifting movement (axial displacement along the longitudinal axis AA, see Figures 1 to 3 ) or a turning and lifting movement.
  • a lifting movement is carried out.
  • the annular groove 12 on the adjustment element 11 is used to attach a sealing ring 15 for sealing the cavity in which the adjustment element 11 is located.
  • the proportioner 9 from 4 and figure 5 is in 10 shown in perspective.
  • the admixer 9 has an input 19 and an output 20 for the extinguishing water.
  • the main channel 10 is located between the input 19 and the output 20 .
  • the dosing device 1 is integrated into the proportioner 9 .
  • the additive is fed to the dosing device 1 via the input 5 .
  • the dosing channel for the additive opens into the main channel 10.
  • the admixer 9 is equipped with two feet 18 .
  • FIG. 11 shows a schematic representation of the head parts of a throttle element 3 (side view) with different shapes and designs of depressions 7. You can see the open sides 3c of the depressions 7.
  • the head parts of the examples shown are cylindrical or piston-shaped and are intended for dosing devices 1 with throttle elements 3 that are moved by lifting movement or rotary and lifting movement.
  • the indentations 7 can, for example, run diagonally, radially or sectorally (in a circle segment) on the upper side 3a of a throttle element 3 or are flat (e.g.
  • the depression 7 shown with a lateral opening 3c is, for example, V-shaped, wedge-shaped or notch-shaped.
  • the depression 7 is, for example, a throttle notch.
  • the side opening 3c is triangular.
  • the tip or end of the depression 7 is, for example, in the lower region of the head part and does not reach the lower end of the head part.
  • the (pointed) end of the recess 7 can also be in the central area (for example in the middle of the side or halfway up) of the head part or in the area of the upper side 3a .
  • a V-shaped depression 7 is advantageous for dosing (mixing) from smaller to larger amounts of liquid.
  • An adjustment of the throttle element 3 causes a linear change in the proportioning rate.
  • the recesses 7 may have a rectangular side opening 3c and are, for example, slit-shaped or groove-shaped (side surface groove).
  • the depth (lateral length) of the recesses 7 is stepped (step arrangement of the recesses 7 ). A graded adjustment of the proportioning rate can be made here.
  • Fig. 11 c shows a rounded or channel-shaped depression 7.
  • the lateral opening 3c has, for example, the shape of a parabola.
  • the change in the proportioning rate is non-linear.
  • Fig. 11d shows a stepped depression 7. As in Fig. 11 b) a graded admixture is achieved.
  • FIG. 11e An example of the combination of depressions 7 with different shapes is in Fig. 11e) shown. In Fig. 11 f) these forms are united in a recess 7 .
  • a V-shaped tip could also be combined with one or more trapezoid-shaped areas.
  • the indentations 7 with a side opening 3c are flat indentations in the jacket area of the head part.
  • the lateral opening 3c is rotated from a covered zone to an open zone. Cover zone and open zone are not ring-shaped around the head part of the throttle element 3 arranged, but are, for example, open or closed partial surfaces of the wall of a cavity 4.
  • Fig. 12 a shows a depression 7 with an analogous function Fig. 11a) .
  • the throttle element 3 in Fig. 12 b) is analogous to Fig. 11e) .
  • In 13 is the view of the top 3a of a throttle element 3 of various examples.
  • Fig. 13 a) to c) radially extending depressions 7 can be seen, designed here, for example, as a throttle notch.
  • Fig. 13 a) runs the recess 7 from the center to the edge of the top 3a.
  • Fig. 13 b) and c) runs the recess 7 from another point of the top 3a to the edge of the top 3a, wherein in Fig. 13 c) the recess 7 is only in the edge area (shell area).
  • the indentation 7 could be a shallow indentation such as a groove.
  • FIG. 13d shows a diagonal arrangement of two indentations 7 (eg two throttle notches).
  • Fig. 13e shows a star-shaped or cross-shaped arrangement of four depressions 7 (eg four throttle notches).
  • Fig. 13 f shows a diagonal depression 7 (eg a slit).
  • Fig. 13 g shows a sectoral depression 7 (eg a slit).

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  • Accessories For Mixers (AREA)

Claims (11)

  1. Dispositif de dosage (1) pour un dispositif d'extinction d'incendie ou pour un système d'extinction d'incendie pour mélanger un additif dans un flux d'eau d'extinction, contenant un élément mobile (3) dans une cavité (4), caractérisé en ce que l'élément mobile (3) à une extrémité (3a) présente au moins un évidement (7) en forme d'entaille, de coin, de canal ou de conduit avec une ouverture latérale (3c), l'évidement (7) est ouvert uniquement vers le haut (3a) et sur le côté de l'élément mobile (3), et la paroi de la cavité (4) présente une zone de fermeture dans laquelle l'ouverture latérale (3c) de l'évidement (7) est complètement couverte ou fermée, et une zone ouverte, dans laquelle l'ouverture latérale (3c) de l'évidement (7) n'est pas couverte et est libre pour un passage de l'additif, où l'élément mobile (3) est déplaçable de la zone de fermeture à la zone ouverte et le taux de mélange de l'additif dépend de la position ou le déplacement de l'élément mobile (3).
  2. Dispositif de dosage (1) selon la revendication 1, caractérisé en ce que l'évidement (7) sur le dessus (3a) de l'élément mobile (3) s'étend radialement, en diagonale ou en secteur ou l'évidement (7) est situé sur le côté de l'élément mobile (3) et se prolonge vers le haut (3a) de l'élément mobile (3).
  3. Dispositif de dosage (1) selon la revendication 1 ou 2, caractérisé en ce que l'élément mobile (3) contient une pluralité de l'évidement (7) qui diffèrent par la forme, le volume ou la profondeur ou sont agencés de manière étagée.
  4. Dispositif de dosage (1) selon l'une des revendications précédentes, caractérisé en ce que l'évidement (7) ou les évidements (7) sont conçus de telle sorte que le taux de mélange de l'additif peut être ajusté linéairement ou non linéairement.
  5. Dispositif de dosage (1) selon l'une des revendications précédentes, caractérisé en ce que l'élément mobile (3) est réglable mécaniquement, pneumatiquement, hydrauliquement, à l'aide d'un moteur, à l'aide d'un moteur électrique ou manuellement ou le dispositif de dosage (1) contient un dispositif mécanique, pneumatique, hydraulique ou manuel pour déplacement ou un dispositif de réglage avec ou sans moteur.
  6. Dispositif de dosage (1) selon l'une des revendications précédentes, caractérisé en ce que l'élément mobile (3) est partiellement ou complètement cylindrique ou en forme de piston et un dispositif de déplacement ou de réglage est prévu pour un mouvement de rotation, un mouvement de levage ou un mouvement de rotation et un mouvement de levage.
  7. Dispositif de dosage (1) selon l'une des revendications précédentes, caractérisé en ce que le dispositif de dosage (1) contient un dispositif avec un entraînement à filet, un entraînement à rainure hélicoïdale, un pignon ou autre entraînement mécanique pour le réglage de l'élément mobile (3).
  8. Dispositif de dosage (1) selon l'une des revendications précédentes, caractérisé en ce que l'évidement (7) est en forme de canal, de coin, de fente, d'encoche ou gradinée, l'évidement (7) présente une ouverture latérale (3c) de forme de V, de forme triangulaire, de forme parabolique ou rectangulaire ou l'évidement (7) est symétrique ou asymétrique.
  9. Dispositif de dosage (1) selon l'une des revendications précédentes, caractérisé en ce que le dispositif de dosage (1) est contenu dans un mélangeur (9) pour un dispositif d'extinction d'incendie ou un système d'extinction d'incendie ou est relié à un mélangeur (9) pour un dispositif d'extinction d'incendie ou dans un système d'extinction d'incendie.
  10. Utilisation d'un dispositif de dosage( 1) selon l'une des revendications 1 à 8 pour doser ou mélanger un liquide.
  11. Utilisation selon la revendication 10, caractérisée en ce que le dosage ou le mélange d'un liquide a lieu dans un dispositif d'extinction d'incendie ou un système d'extinction d'incendie.
EP17202819.3A 2016-12-23 2017-11-21 Dispositif de dosage pour lutte contre l'incendie Active EP3338862B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016226203.3A DE102016226203A1 (de) 2016-12-23 2016-12-23 Dosiervorrichtung und Zumischer für Feuerlöschzwecke

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EP3338862A1 EP3338862A1 (fr) 2018-06-27
EP3338862B1 true EP3338862B1 (fr) 2022-02-23

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DE (1) DE102016226203A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114225283B (zh) * 2021-12-27 2022-11-11 湖南维尔消防工程有限公司 一种消防工程用灭火装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE644912A (fr) * 1963-03-11 1964-07-01
DK145775C (da) * 1980-09-30 1983-07-25 Westergaard Knud Erik Injektor, navnlig til hoejtryksrensere
US4417601A (en) * 1980-12-19 1983-11-29 National Foam Systems, Inc. Variable proportioning valve for balanced pressure proportioning systems, and system containing the valve
DE3740677A1 (de) * 1987-12-01 1989-06-15 Total Feuerschutz Gmbh Verfahren und vorrichtung zum zumischen eines schaum- oder netzmittels in ein loeschwasser
DE3923891A1 (de) 1989-07-19 1991-01-24 Total Feuerschutz Gmbh Zumischeinrichtung
DE4007137C2 (de) * 1990-03-07 1994-05-05 Erich Mueller Löschvorrichtung
US5996700A (en) * 1998-01-15 1999-12-07 Hale Products, Inc. Foam proportioner system
DE202004009297U1 (de) 2004-06-11 2004-09-09 Max Widenmann Kg Armaturenfabrik Dosiervorrichtung für Ansaugapparate, insbesondere für Schaummittelzumischer für Feuerlöschzwecke
DE102006026197A1 (de) 2005-06-06 2006-12-07 Max Widenmann Kg Armaturenfabrik Zumischer für eine Feuerlöschvorrichtung
AT514694B1 (de) * 2013-11-04 2015-03-15 Rosenbauer Int Ag Stufenloses Schaumdosier-System
DE102015210181B3 (de) 2015-06-02 2016-07-07 Awg Fittings Gmbh Zumischer für eine Feuerlöschvorrichtung

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EP3338862A1 (fr) 2018-06-27

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