Extinguishing-fluid-nozzle system for stationary fire-extinguishing systems

Abstract

An extinguishing fluid nozzle system (1, 100, 200), for stationary fire extinguishing systems, with an extinguishing fluid nozzle having a main body (3, 104, 204) which has an inlet opening (23, 123, 223) and can be fixed in fluid-conducting relationship to an extinguishing fluid line, a nozzle head (5, 106, 206) which has one or more outlet openings (25, 125, 225) connected in fluid-conducting relationship to the inlet opening for the discharge of the extinguishing fluid, and an aperture (7, 107, 207) having an aperture ring (15, 115, 215) for flow limitation, arranged in the fluid path between the inlet opening and the one or more outlet openings. The aperture has a grip portion (17, 117, 217) which is fixedly connected to the aperture ring and which extends outwardly from the aperture ring and which in the fitted condition of the aperture extends outside the extinguishing fluid nozzle.

Claims

1. An extinguishing gas nozzle system for stationary fire extinguishing systems comprising an extinguishing fluid nozzle and an aperture, the extinguishing fluid nozzle having: a main body which has an inlet opening and can be fixed in fluid-conducting relationship to an extinguishing fluid line, and a nozzle head which has one or more outlet openings connected in fluid-conducting relationship to the inlet opening for discharge of an extinguishing fluid, and the aperture having: an aperture ring for flow limitation, arranged in a fluid path between the inlet opening and the one or more outlet openings, and a grip portion which is fixedly connected to the aperture ring and which extends outwardly from the aperture ring and which in a fitted condition of the aperture extends outside the extinguishing fluid nozzle, wherein an outer perimeter of the aperture ring is clamped within the extinguishing fluid nozzle, and wherein the nozzle head has a circumferential wall disposed about a longitudinal axis of the extinguishing fluid nozzle and a terminal wall transverse to the longitudinal axis of the extinguishing fluid nozzle and the one or more outlet openings of the nozzle head include a plurality of outlet openings disposed about the circumferential wall of the nozzle head.

2. An extinguishing nozzle system according to claim 1 wherein the extinguishing fluid nozzle has an introduction opening passing therethrough for receiving the aperture, wherein the introduction opening extends from an inside of the extinguishing fluid nozzle to an outside at the periphery of the extinguishing fluid nozzle.

3. An extinguishing gas nozzle system according to claim 2 wherein the dimensions of the introduction opening correspond to the dimensions of an introduction portion of the grip portion of the aperture, which introduction portion extends in the fitted condition through the introduction opening.

4. An extinguishing nozzle system according to claim 2 wherein the introduction opening extends sideways at a transverse angle relative to the longitudinal axis of the extinguishing fluid nozzle.

5. An extinguishing nozzle system according to claim 4 wherein inside dimensions of the introduction opening are matched to outside dimensions of the aperture ring and the introduction portion such that the aperture can be introduced sideways into the extinguishing fluid nozzle by being pushed.

6. An extinguishing nozzle system according to claim 2 wherein the introduction opening extends in a direction of the longitudinal axis of the extinguishing fluid nozzle as far as an end of the main body or the nozzle head.

7. An extinguishing gas nozzle system according to claim 6 wherein a width of an introduction portion of the aperture transversely relative to the longitudinal axis of the extinguishing fluid nozzle is less than the width of the aperture ring transversely relative to the longitudinal axis of the extinguishing fluid nozzle.

8. An extinguishing gas nozzle system according to claim 7 wherein inside dimensions of the introduction opening are matched to outside dimensions of the introduction portion in such a way that the aperture can be introduced into the extinguishing fluid nozzle in the direction of the longitudinal axis by being pushed.

9. An extinguishing nozzle system according to claim 1 wherein the aperture is clamped in the fitted condition by a nut screwed externally on to the main body or the nozzle head.

10. An extinguishing nozzle system according to claim 9 wherein a clamping element embraces the main body or the nozzle head and additionally secures the aperture to prevent rotation thereof.

11. An extinguishing gas nozzle system according to claim 10 wherein the aperture has recesses which are matched to the clamping element and into which the clamping element extends.

12. An extinguishing nozzle system according to claim 1 wherein the nozzle head and the main body are formed in one piece.

13. An extinguishing gas nozzle system according to claim 1 wherein the nozzle head is reversibly releasably coupled to the main body by a screw connection, wherein the aperture in the fitted condition thereof is connected to the main body in force-locking and/or positively locking relationship by screwing the nozzle head to the main body.

14. An extinguishing gas nozzle system according to claim 1 wherein arranged on the grip portion on at least one surface is a respective identification element selected from the list consisting of: an optically and/or haptically perceptible identification element, a machine-readable identification element, or a combination thereof.

15. An extinguishing gas nozzle system according to claim 1 wherein the grip portion has an introduction portion adjacent the aperture ring, the introduction portion having an introduction width transverse to the axis and sized for receipt in an introduction opening of the extinguishing fluid nozzle, and an identification element adjacent the introduction portion, the identification element having an element width transverse to the axis that is greater than the introduction width of the introduction portion.

16. An extinguishing fluid nozzle system according to claim 1, wherein the terminal wall of the nozzle body comprises a closed end proximate the terminal wall.

17. An extinguishing fluid nozzle system according to claim 1, wherein the aperture ring for flow limitation comprises first and second generally planar surfaces with a single flow aperture extending therethrough from the first generally planar surface to the second generally planar surface along an axis.

18. An extinguishing fluid nozzle system, consists of: an extinguishing fluid nozzle, having: a main body which has an inlet opening and which can be fixed in fluid-conducting relationship to an extinguishing fluid line, and a nozzle head which has one or more outlet openings connected in fluid-conducting relationship to the inlet opening for discharge of an extinguishing fluid, and an aperture ring for flow limitation which can be arranged in a fluid path between the inlet opening and the one or more outlet openings, which has a grip portion which is fixedly connected to the aperture ring and which extends outwardly from the aperture ring and which in a fitted condition of the aperture extends outside the extinguishing fluid nozzle, wherein an outer perimeter of the aperture ring is clamped within the extinguishing fluid nozzle.

19. An extinguishing nozzle system having an extinguishing gas nozzle for stationary fire extinguishing systems, the extinguishing gas nozzle, comprising: a main body defining an inlet opening and a nozzle receiving opening along a longitudinal axis, the main body having a peripheral portion including an upper portion proximate the inlet opening and a lower portion proximate the nozzle receiving portion, the upper portion being configured for fixation in fluid-conducting relationship to an extinguishing fluid line, and the lower portion having a longitudinal introduction opening extending along the longitudinal axis as far as an end of the lower portion of the main body; a nozzle head disposed in the nozzle receiving opening of the main body, the nozzle head having at least one outlet opening connected in fluid-conducting relationship with the inlet opening of the main body for discharge of an extinguishing fluid, and an aperture that limits flow between the inlet opening and the one or more outlet openings, wherein the aperture has a grip portion which is fixedly connected to an aperture ring, the grip portion extending outwardly from the aperture ring and through the longitudinal introduction opening to outside the main body when an outer perimeter of the aperture ring is clamped between the main body and the nozzle head.

Description

DRAWINGS

(1) The disclosure is described in greater detail hereinafter with reference to the accompanying Figures by means of a plurality of preferred embodiments by way of example. In the drawing:

(2) FIG. 1 shows a diagrammatic exploded perspective view of an extinguishing fluid nozzle system according to a first embodiment,

(3) FIG. 2a shows a diagrammatic cross-sectional view of an extinguishing fluid nozzle system according to a second embodiment in a first condition,

(4) FIG. 2b shows the extinguishing fluid nozzle system of FIG. 2a in a second condition,

(5) FIG. 3a shows a diagrammatic exploded view of an extinguishing fluid nozzle system according to a third embodiment in a first condition,

(6) FIG. 3b shows the system of FIG. 3a in a second condition,

(7) FIG. 3c shows the system of FIGS. 3a and b in a third condition,

(8) FIG. 3d shows the system of FIGS. 3a-c in a fourth condition, and

(9) FIG. 3e shows the system of FIGS. 3a-d in a fifth condition.

DETAILED DESCRIPTION

(10) FIG. 1 shows an extinguishing fluid nozzle system 1 according to a first preferred embodiment of the disclosure. The extinguishing fluid nozzle system 1 has a main body 3 which can be reversibly releasably connected to the nozzle head 5. An aperture 7 can be arranged between the main body 3 and the nozzle head 5.

(11) In a peripheral portion which is an upper portion in FIG. 1 the main body 3 has a male thread 9. At a lower portion in FIG. 1 the main body 3 has a hexagonal profile portion 11. Provided in a side surface 11a of the periphery of the main body 3 is an introduction opening 13 which extends from the inner peripheral surface to the outer peripheral surface and extends in the longitudinal direction of the axis A. The introduction opening 13 is open at an end of the main body 3, which is the lower end in FIG. 1.

(12) The aperture 7 has an aperture ring 15 adapted for introduction into the interior of the extinguishing fluid nozzle. The aperture ring 15 is of a smaller inside diameter than the rest of the interior in the fluid path of the extinguishing fluid nozzle system 1. That inside diameter serves to limit the flow cross-section within the extinguishing fluid nozzle.

(13) The aperture 7 has a grip portion 17 extending radially outwardly from the aperture ring 15. In turn the grip portion 17 has an introduction portion 19 whose width transversely relative to the direction of the axis A is reduced and corresponds to the width of the introduction opening 13 transversely relative to the direction of the axis A. The grip portion 17 has an identification element 29.

(14) To introduce the aperture 7 into the extinguishing fluid nozzle of the extinguishing fluid nozzle system 1 the nozzle head 5 which has a male thread 21 is screwed out of the thread arranged in the interior of the hexagonal profile portion 11. Then by aligning the introduction portion 19 with the introduction opening 13 and subsequently pushing the aperture 7 along the introduction opening 13 into the main body 3 the aperture 7 can be moved into position. Subsequently the nozzle head 5 is screwed into the main body 3 again. Fluid which now passes into the main body 3 through an inlet opening 23 is impeded in its flow through the aperture ring 15 of the aperture 7, that is to say the flow cross-section is limited before it issues from a or a plurality of outlet openings 25 from the nozzle head 5.

(15) In the present embodiment the grip portion 17 is shown without characterisation with an identification element or elements. However a characterisation in accordance with an embodiment of the disclosure can be readily placed on the part of the grip portion 17, that is disposed outside the introduction portion 19.

(16) FIGS. 2a and b show a further embodiment of the disclosure. Shown here is an extinguishing fluid system 100 having a main body 104 which is one piece with a nozzle head 106. An introduction opening 113 is provided in the main body 104 towards one side transversely relative to the axis A. The introduction opening 13 is of a slot-shaped configuration and is adapted to receive an aperture 107. The aperture 107 is substantially the same in its function as the aperture 7 in FIG. 1, insofar it has an aperture ring 115 adapted to limit the flow cross-section within the extinguishing fluid nozzle. The grip portion 117 of the aperture 107 is of the same width as the outside diameter of the aperture ring 115. Thus both the aperture ring 115 and also the introduction portion 117 are adapted to the width of the introduction opening 113. The nozzle head 106 has a plurality of outlet openings 125.

(17) The aperture 107 can be pushed into the main body 104 laterally, transversely relative to the direction of the longitudinal axis A, in the direction of the arrow B. That condition is shown in FIG. 2b. To prevent unintended removal of the aperture 107 from the main body 104 or the nozzle head 106 this embodiment shown in FIGS. 2a and b has a securing nut 127 on a male thread 109 on the main body 104. As shown in FIG. 2b the securing nut 127, after introduction of the aperture 107, is screwed against same and simultaneously secures and seals the introduction opening 113.

(18) In the example shown in FIGS. 2a and b the aperture 107, at the side thereof which is downward in the Figures, has an annular step 118 which supports the aperture 107 against a corresponding shoulder 108 in the nozzle head 106. Thus the aperture is secured in both force-locking and also positively locking relationship in the illustrated condition.

(19) In addition as shown in FIGS. 2a and b the aperture 107 has a characterisation in the form of an identification element 129. In the present case the identification element 129 is in the form of an opening passing therethrough.

(20) Finally FIGS. 3a-e show a third embodiment of the disclosure. Shown there is an extinguishing fluid nozzle system 200 which again has a one-piece structure consisting of the main body 204 and the nozzle head 206. Provided in the main body 204 is an introduction opening 213 which is oriented transversely relative to the axis A and which performs substantially the same function as the introduction opening 113 in the embodiment of FIGS. 2a, b. In this respect attention is directed to the foregoing description. A male thread 209 is provided at an outside peripheral surface. A clamping element 231 is provided between the male thread 209 and the nozzle head 206 at the height of the introduction opening 213. The male thread 209 is designed to receive a securing nut 227. The nozzle head 206 has a plurality of outlet openings 225.

(21) At its grip portion 217 the aperture 207 used in the fluid nozzle system 200 has two recesses 232 for receiving ends 234 of a corresponding configuration of the clamping element 231. A characterization in the form of an optical identification element 229 is applied to the portion, shown at the right in the Figures, of the grip portion 217. FIG. 3a-e show by way of example the assembly sequence for introducing the aperture 207 into the extinguishing fluid nozzle of the extinguishing fluid nozzle system 200.

(22) Firstly, starting from the condition shown in FIG. 3a, the aperture 207 is moved in the direction of the arrow C and introduced into the introduction opening 213 of corresponding configuration. After complete introduction, shown in FIG. 3b, the clamping element is moved at the height of the aperture 207 as indicated by the arrow D, pushed on to the nozzle head 206 and embraces same in such a way that the end portions 234 engage into the recesses 232 in the aperture 207, see the condition shown in FIG. 3c.

(23) Then, for further fixing and sealing off the introduction opening 213, the securing nut 227 is screwed in the direction of the arrow E on to the male thread 209 until it has moved into the end position shown in FIG. 3d. In cross-section that gives the configuration shown in FIG. 3e.

(24) To remove the aperture 207 from the extinguishing fluid nozzle system 200 shown in FIGS. 3a-e the above-described steps are performed in the reverse sequence.

(25) As can be seen from the foregoing description the disclosure provides a system for efficient aperture change in extinguishing fluid nozzle systems. The simple characterization option on the grip portions of the apertures is a further possible way of increasing efficiency and avoiding errors.