EP1803488A1 - Dispositif d'extinction de feu avec réservoir ainsi qu'une bouteille à gaz comprimé correspondante - Google Patents

Dispositif d'extinction de feu avec réservoir ainsi qu'une bouteille à gaz comprimé correspondante Download PDF

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Publication number
EP1803488A1
EP1803488A1 EP06100013A EP06100013A EP1803488A1 EP 1803488 A1 EP1803488 A1 EP 1803488A1 EP 06100013 A EP06100013 A EP 06100013A EP 06100013 A EP06100013 A EP 06100013A EP 1803488 A1 EP1803488 A1 EP 1803488A1
Authority
EP
European Patent Office
Prior art keywords
pressure
extinguishing agent
valve
compressed gas
gas cylinder
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Withdrawn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
EP06100013A
Other languages
German (de)
English (en)
Inventor
Frank Felten
Karl Bermes
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.)
Luxembourg Patent Co SA
Original Assignee
Luxembourg Patent Co SA
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 Luxembourg Patent Co SA filed Critical Luxembourg Patent Co SA
Priority to EP06100013A priority Critical patent/EP1803488A1/fr
Priority to US12/159,880 priority patent/US8083003B2/en
Priority to CN2006800503108A priority patent/CN101351244B/zh
Priority to EP06830847A priority patent/EP1968715B1/fr
Priority to RU2008131499/12A priority patent/RU2407570C2/ru
Priority to AT06830847T priority patent/ATE516855T1/de
Priority to CA2638173A priority patent/CA2638173C/fr
Priority to PCT/EP2006/070259 priority patent/WO2007077195A1/fr
Publication of EP1803488A1 publication Critical patent/EP1803488A1/fr
Priority to NO20083302A priority patent/NO340163B1/no
Withdrawn legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C13/00—Portable extinguishers which are permanently pressurised or pressurised immediately before use
    • A62C13/66—Portable extinguishers which are permanently pressurised or pressurised immediately before use with extinguishing material and pressure gas being stored in separate containers
    • A62C13/72—Portable extinguishers which are permanently pressurised or pressurised immediately before use with extinguishing material and pressure gas being stored in separate containers characterised by releasing means operating essentially simultaneously on both containers
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A62C35/02—Permanently-installed equipment with containers for delivering the extinguishing substance
    • A62C35/023—Permanently-installed equipment with containers for delivering the extinguishing substance the extinguishing material being expelled by compressed gas, taken from storage tanks, or by generating a pressure gas

Definitions

  • the present invention relates to a fire extinguishing device with an extinguishing agent container and a compressed gas cylinder which is particularly suitable for use together with this extinguishing agent container.
  • extinguishing agent containers are known in particular in connection with automatic fire extinguishing systems. These have over the fire extinguishers described above in particular the advantage that a complete expulsion of the extinguishing agent is ensured even with any spatial orientation of the extinguishing agent container. They are therefore already used in permanently installed in vehicles, automatic fire extinguishing systems, where it can come to an arbitrary orientation of the extinguishing agent container by an accident.
  • An extinguishing agent container with piston is in the WO 96/36398 described. This is particularly suitable for closed rooms, such as passenger compartments or engine compartments, and includes an extinguishing agent container with a cylindrical, sealed on both sides of the container casing and a piston axially displaceable in the container jacket.
  • the piston in the extinguishing agent container, separates an extinguishing agent space containing an extinguishing agent from a propellant space containing a pressurized propellant gas.
  • the extinguishing agent space is provided at an exit for the extinguishing agent with a trigger valve. Upon actuation of the trigger valve, the propellant gas, by displacement of the piston into the extinguishing agent space inside, drive the extinguishing agent from the extinguishing agent container.
  • a fire extinguishing device with an extinguishing agent container according to WO 96/36398 has the disadvantage that the extinguishing agent pressure during the discharge of the extinguishing agent is not constant. To ensure complete discharge, a considerable expansion of the volume of propellant gas is required. This brings during the expulsion of the extinguishing agent (at unchanged temperature), however, a strong pressure drop of the propellant gas and consequently also the extinguishing agent with it. As a result, the throughput of extinguishing agent falls over the deletion. Furthermore, as extraction progresses, the matching of extinguishant pressure to commonly connected atomizer nozzles for the extinguishant of such equipment degrades.
  • the US 4,889,189 describes the construction of an extinguishing agent container with an inner, expandable membrane which separates the extinguishing agent space from the propellant space. Furthermore, a method for selecting an optimal amount of extinguishing agent and a most suitable propellant pressure will be described.
  • the construction as well as the method according to the US 4,889,189 Among other things, they aim to reduce the above negative pressure drop. However, the dropping of the extinguishing agent pressure and the extinguishing agent flow rate during the erasing operation can not be satisfactorily prevented either with this extinguishing agent container or with this method.
  • Object of the present invention is therefore to propose a fire extinguishing device which is functional in any spatial orientation and ensures increased reliability.
  • a fire extinguishing device comprising an extinguishing agent container with a sealed on both sides of the container casing and an axially displaceable in the container casing piston which separates an extinguishing agent space in the extinguishing agent from a propellant space.
  • an internal and separate from the propellant space pressure gas chamber for controlled pressurization of the propellant space is provided in the extinguishing agent container.
  • the piston is slidably disposed along the pressure gas chamber.
  • the inventive, integrated in the container pressure gas chamber is independent of the propellant space, and thus also of the variable volume of the latter. This makes it possible on the one hand avoid suitable switching means that the propellant space and the extinguishing agent are at rest under operating pressure, on the other hand allows this arrangement, using suitable pressure control means, a controlled pressurization of the propellant space, in particular with constant pressure over the entire duration of Löschschschaustrags.
  • the propellant pressure in the pressure medium chamber and consequently also the extinguishing agent pressure in the construction according to the invention is not only constant over the duration of the extinguishing agent discharge but in the absolute value freely selectable and thus adaptable for various applications.
  • the container shell is cylindrical and the pressure gas chamber is arranged in the extinguishing agent container coaxial with the container shell.
  • An annular piston suitable for coaxial pressure gas chamber has e.g. a circular cylindrical outer shape and is provided with a coaxial circular cylindrical guide opening.
  • an internal combustion gas cylinder in the compressed gas cylinder is provided with at least partially cylindrical outer wall.
  • the piston is designed as an annular piston and slidably guided along the cylindrical part of the outer wall of the compressed gas cylinder.
  • the pressure gas chamber is formed by a, preferably specially processed, compressed gas cylinder so that the piston on the bottle itself can be slidably mounted, whereby an additional guide is saved.
  • the fire-extinguishing device comprises a cylindrical guide casing which is located inside the extinguishing agent container and a compressed gas cylinder which is arranged inside the cylindrical guide casing.
  • the piston is configured as an annular piston and guided displaceably along the cylindrical guide shell.
  • the fire extinguishing device advantageously further comprises a pressure control valve for controlled pressurization of the propellant space, which is connected to the input or the output of the switching valve to act on the propellant space with compressed gas at a predetermined, substantially constant pressure during the deletion process.
  • the switching valve has at least one pneumatic control port, and a temperature-sensitive, pressure-loaded detector line is present, which is connected to the pneumatic control port of the switching valve to open the pressure drop in the detector line, the switching valve.
  • the fire extinguishing device comprises a switching valve having a first and a second pneumatic control connection, a first pressure control valve, and a connection for a detector line, wherein the first pressure control valve is connected directly to the input side of the pressure gas chamber and the output side to the input of the switching valve, wherein the Connection for the detector line to the first control port and the output of the first pressure control valve is additionally connected to the second control port, and wherein the switching valve is connected on the output side to the propellant space.
  • This embodiment is particularly suitable for expelling extinguishing agent at an average pressure which coincides with that in the detector line.
  • the fire extinguishing device comprises in addition, a second pressure control valve which is connected on the input side to the output of the first pressure control valve and the output side at the input of the switching valve or input side at the output of the switching valve and the output side of the propellant space.
  • This embodiment is particularly suitable for expelling extinguishing agent at a low pressure, which is lower than that in the detector line.
  • the fire extinguishing device additionally comprises a second pressure regulating valve which is connected on the input side to the first control connection and on the output side to the connection for the detector line.
  • This embodiment is particularly suitable for expelling extinguishing agent at a high pressure, which is greater than that in the detector line.
  • the fire extinguishing device further comprises a compensation line for compensating leaks in the detector line, which is connected to the output of the first pressure regulating valve and connected to the terminal for the detector line, wherein in the compensation line a check valve is arranged, which at excessive pressure loss in the detector line an excessive Loss of propellant over the compensation line prevented.
  • the fire extinguishing device further comprises a creeping gas safety device, which is connected to the output of the switching valve in order to prevent a creeping pressure build-up in the propellant space.
  • a creeping gas safety device which is connected to the output of the switching valve in order to prevent a creeping pressure build-up in the propellant space.
  • the fire extinguishing device further comprises a compressed gas cylinder inside the extinguishing agent container, the compressed gas cylinder comprising the pressure chamber and having a thickened bottle bottom, which receives at least the switching valve, the first pressure control valve and possibly the second pressure control valve as a valve block. It is advantageous if the connecting line, which leads via the switching valve, the first pressure control valve and optionally the second pressure control valve from the pressure chamber to the propellant space is formed by holes in the dashboard. In this Construction makes the fire extinguisher even more compact, leak-proof, and more robust.
  • the piston comprises an inner guide bushing for guiding the cylindrical part of the compressed gas cylinder or on the guide casing and an outer guide shirt for guiding the container casing and wherein the guide bushing has a smaller axial extent than the guide shirt.
  • the piston is preferably guided on the basis of a, corresponding to the cross section of the pressure gas chamber recess at this, so that it surrounds the pressure gas chamber. It is also possible to arrange pistons and pressure gas chamber with complementary cross sections in the container casing so that the piston does not surround the pressure gas chamber.
  • the present invention also relates to a specially developed compressed-gas cylinder and in particular to its production method. Without being limited to this application, the use of such a special compressed gas cylinder in the fire extinguishing device according to the invention is particularly advantageous.
  • the solid, thickened bottom plate is designed as a cylindrical solid body, which has the same radius as the cylindrical bottle jacket after the backward extrusion.
  • the processing of the compressed gas cylinder blank to a compressed gas cylinder preferably the making at least one housing and valve seat bore as a receiving bore for a valve.
  • the processing of the compressed gas cylinder blank to a compressed gas cylinder advantageously comprises making at least one connecting bore from the receiving bore to the interior of the compressed gas cylinder and at least one outlet bore from the receiving bore to the outside in the thickened, solid bottom plate.
  • the step is advantageously carried out such that the bottom plate has an extension in the longitudinal direction of the compressed gas cylinder, which is 5 to 15 times the wall thickness of the bottle jacket or at least 50mm.
  • the processing of the compressed gas cylinder blank to a compressed gas cylinder further preferably, the machining of the outer surface of the bottle jacket as a cylindrical guide by cutting forming.
  • the extinguishing agent container 10 ' comprises a cylindrical container casing 12', which is closed on both sides by a first closure 14 'and a second closure 16' leak-proof.
  • the closures 14 ', 16' are screwed by means of internal threads on external thread of the container casing 12 'and sealed by means of sealing rings.
  • a cylindrical guide casing 18 ' is arranged in the extinguishing agent container 10' coaxial with the container casing 12 '.
  • the piston 20 ' is designed as an annular piston with a central guide bushing.
  • a coaxial pressure gas chamber 26 'lying inside the extinguishing agent container is again spatially separated from the extinguishing agent space 22' and from the propellant space 24 'by a compressed gas cylinder 28' of conventional design.
  • the compressed gas cylinder 28 'and the pressure gas chamber 26' are located within the guide casing 18 ', so that the piston 20' on the guide casing 18 'along the pressure gas chamber 26' is displaceable.
  • both guide casing 18', the container casing 12 'as well as the piston 20' as a cylindrical body in the geometric sense (ie not necessarily circular cylindrical) are formed.
  • a fitting block 30 ' is screwed onto the connecting thread in the bottleneck of the compressed gas cylinder 28'.
  • the fittings in the armature block 30 ' serve, inter alia, the controlled pressurization of the propellant space 24' with propellant gas from the compressed gas cylinder 28 '. 1, both the guide casing 18 ', the compressed gas cylinder 28' as well as the valve block 30 ', by appropriate shaping of the closures 14', 16 'and a holder 29', securely held in the extinguishing agent container 10 'and against Damage protected arranged.
  • the inner volume delimited by the guide casing 18 ' is sealed off from the outside and the extinguishing agent space 22'.
  • the piston 20 ' is equipped with known O-ring seals on the inner surface of the container shell 12' and on the guide casing 18 ', which in the longer term penetration of extinguishing agent in the propellant space 24' and penetration of propellant into the extinguishing agent space 22 ' reliably prevent, however, without adversely affecting the displaceability of the piston 20 '.
  • the operating principle of the extinguishing agent container 10 ' can be summarized as follows.
  • the extinguishant space 22 ' is filled with an extinguishing agent, such as water mixed with an additive.
  • an extinguishing agent such as water mixed with an additive.
  • the extinguishing agent space 22 'nor the propellant space 24' are under pressure, ie, the permanent extinguishing agent pressure in the standby state can be, for example, at atmospheric pressure.
  • the propellant space 24 ' is isolated from the pressurized gas bottle 28' in operative readiness by a switching valve 32 'in the fitting block 30'.
  • the switching valve 32 ' is triggered, for example, by a detector device explained below, so that only when triggered, the propellant gas from the pressure gas chamber 26' in the propellant space 24 'flows.
  • the propellant gas is preferably down regulated by a pressure control valve or a pressure reducer in the valve block 30 '(not shown in Figure 1) to a predetermined extinguishing pressure, eg 4bar, 15bar or 90bar.
  • a pressure control valve or a pressure reducer in the valve block 30 ' (not shown in Figure 1) to a predetermined extinguishing pressure, eg 4bar, 15bar or 90bar.
  • the piston 20 ' Under the action of the propellant gas, the piston 20 'is displaced in the direction of the arrow 34' into the original extinguishing agent space 22 'at a constant extinguishing pressure.
  • the extinguishing agent Upon reaching a predetermined pressure, the extinguishing agent is driven by a space membrane or a pressure relief valve 36 'from the extinguishing agent container 10' and passed in a known manner by means of connection 38 'to the point to be extinguished.
  • the piston via the guide casing 18 ', along the pressure gas chamber 26' of closure 16 '(as in Figure 1) to the closure 14' out (not shown) and reaches the latter when the extinguishing agent is completely discharged.
  • the compressed gas cylinder 28 ' is filled with propellant gas under adequately dimensioned accumulator pressure, so that even with smaller leaks a complete expulsion of the entire extinguishing agent is made possible.
  • the extinguishing agent container 10 comprises a container shell 12, which is closed on both sides by means of a first and a second closure 14, 16.
  • a piston 20 is axially displaceable in the container casing 12, and arranged there an extinguishing agent space 22 of a propellant space 24.
  • a in the extinguishing agent container 10 internal pressure gas chamber 26 is arranged for controlled pressurization of the propellant space 24, coaxial with the container shell 12 in the extinguishing agent container 10.
  • the piston 20 is designed as an annular piston and slidably disposed along the pressure gas chamber 26. As can be seen from FIG.
  • the pressure gas chamber 26 is not spatially separated from the extinguishing agent space 22 and the propellant space 24 by means of an additional guide casing, but is formed integrally and exclusively by a novel, cylindrical compressed gas cylinder 28.
  • the embodiment differs according to Fig.2, characterized in that in the novel compressed gas cylinder 28, more precisely in its massive, thickened compared to conventional gas cylinders, bottle bottom housing and valve seats for almost all fittings required are incorporated as holes.
  • the bottle bottom of the compressed gas cylinder 28 itself forms a valve block 30, so that several valves, space-saving and protected against damage, can be accommodated in the bottom of the compressed gas cylinder 28. Said fittings are explained in detail below.
  • the piston 20 is mounted axially displaceable directly on the outer surface of the compressed gas cylinder 28 according to arrows 34. It may be advantageous in this case that this outer surface fits exactly is processed, but this is not absolutely necessary with a sufficiently small manufacturing tolerance.
  • the piston 20 comprises an inner guide bush 40 for guiding on the pressure gas chamber 26, ie the compressed gas cylinder 28, and an outer guide shirt 42 for guiding on the container casing 12. In this case, the guide bush 40 has a smaller axial extent than the guide shirt 42.
  • an extinguishant line is generally connected to direct the extinguishing agent to the desired location. It can, as shown in Figure 2, a plurality of terminals 38 may be provided, for example, for feeding a plurality of extinguisher lines leading to different locations.
  • Fig. 3 shows a first low extinguishant pressure extinguishing device 50 (e.g., 4bar) in a simplified schematic representation.
  • the fire extinguishing device 50 comprises the extinguishing agent container 10 with axially displaceable piston 20, which separates the extinguishing agent space 22 from the propellant space 24.
  • the pressure vessel 28 with the compressed gas chamber 26 is arranged in the extinguishing agent container 10. It should be noted that for the sake of clarity, in FIGS. 3 to 5, the compressed gas chamber 26 and the compressed gas cylinder 28 are not integrated in the extinguishing agent container 10, but are shown separately.
  • the valve block 30 connects the interior of the compressed gas cylinder 28, inter alia, with the propellant space 24 via various fittings.
  • a first Pressure control valve 52 Connected directly to the outlet of the compressed gas cylinder 28 is a first Pressure control valve 52, which reduces a storage pressure p1 (eg 200bar) of the propellant in the compressed gas cylinder 28 to a first intermediate pressure p2 (eg 15bar).
  • a switching valve 32 is connected at the output of the pressure regulating valve 52.
  • the switching valve 32 is, for example, a 2/2-way valve with blocking in the counterflow direction, which has pneumatic control connections 56, 58.
  • the output of the switching valve 32 is connected to a second pressure regulating valve 60, which reduces the intermediate pressure p2 to a driving pressure p3 (eg 4bar) for the propellant space 24.
  • the pressure regulating valve 60 could also be arranged directly upstream of the switching valve 32.
  • the output of the second pressure regulating valve 60 is connected via a spring-loaded pressure relief valve 62 (or a place diaphragm) with the propellant space 24 of the extinguishing agent container 10.
  • the relief valve 62 is set to a certain minimum pressure (less than p3) which must be applied to fill the propellant space.
  • the output of the switching valve 32 is guided via a creeping gas fuse 64 to the outside.
  • the non-ideal long-term sealing of the switching valve 32 is compensated by means of a preferably equally non-ideal, or worse long-term sealing of the creeping gas fuse 64 to the outside. In this way, together with a suitable bias on the check valve 62, a creeping pressure build-up in the propellant space 24 is prevented. However, short-term pressure changes are not reduced by the creeping gas fuse 64.
  • FIG. 3 shows a spring-loaded overpressure valve 66 which is connected to the propellant space 24 and which ensures a maximum propellant pressure, with a value higher than p3, in the propellant space 24 in the case of a defect, for example on one of the pressure control valves 52, 60.
  • a manual venting valve 68 simplifies the filling of the extinguishing agent container 10, more precisely the extinguishing agent space 22 with extinguishing agent by the counter pressure in the propellant space 24 can be reduced.
  • FIG. 3 likewise shows a ball valve 70 which is connected to the valve block 30 and which is connected on the one hand to the first control connection 56 of the switching valve 32 and additionally via a check valve 72 to the output of the first pressure control valve 52 and on the other hand to a detector line 74.
  • the ball valve 70 is opened so that the detector line 70 is directly connected to the first control port 56 of the switching valve 32.
  • the ball valve 70 serves to replace the detector line 74 after use.
  • the detector line 74 comprises a special hose, which is pressurized with gaseous pressure medium. This pressurized special hose is placed above a potentially fire hazard site 76.
  • a pressure gauge 78 for control purposes and a charge port 80 for initial pressurization are connected to the detector line 74.
  • the check valve 72 is located in a compensation line which, by means of a small diameter line, compensates for a potential long-term pressure drop, for example by Brockideale tightness of the ball valve 70, the filling port 80 or other microleaks, by means of propellant gas from the pressurized gas container 28.
  • the check valve 72 in this case prevents loss of propellant via the compensation line in the event of a response of the detector line 74.
  • the mode of action is similar to that of the creeping gas safety 64th
  • the pressure in the detector line 74 is set to p 2, ie equal to the pressure at the outlet of the first pressure regulating valve 52.
  • p 2 the pressure at the outlet of the first pressure regulating valve 52.
  • a pressure difference arises between the control terminals 56, 58, whereby the switching valve 32 opens without external energy.
  • a pressure drop in the detector line 74 arises when, in the event of a fire, the detector line 74 bursts at any point, in particular at the vulnerable point 76 to be protected, under the influence of heat.
  • the propellant space 24 is fed from the compressed gas cylinder 28 via both pressure control valves 52, 60 with propellant at constant pressure p3.
  • the piston 20 is moved against the extinguishing agent space 24, so that the latter is continuously reduced, and the extinguishing agent is driven via the pressure relief valve 36 from the extinguishing agent container 10.
  • the extinguishing agent will be expelled throughout the duration of discharge at constant rate and pressure p3.
  • the extinguishing agent is passed to atomizing nozzles 84 of known type, to which the pressure p3 of the extinguishing agent over the entire extinguishing process is optimally tuned.
  • the atomizer nozzles 84 the extinguishing agent is applied to the vulnerable point, which combats the fire.
  • FIG. 4 shows a simplified, schematic representation of a fire extinguishing device 50 "according to a second variant for medium extinguishant pressure (eg 15 bar).
  • the design of the second fire extinguishing device 50" essentially corresponds to that of the first fire extinguishing device 50.
  • the fire extinguishing device 50 "differs only in that As a result, the extinguishing agent pressure during extinguishing corresponds to the pressure p2 (eg 15 bar) at the outlet of the first pressure control valve 52 and in the detector line 74.
  • This variant with single-stage pressure reduction is therefore suitable, for example, for extinguishing agents and in particular for extinguishing agent nozzles 80.
  • FIG. 5 shows a simplified, schematic representation of a fire extinguishing device 50 '' according to a third variant for high extinguishing agent pressure (eg 90bar.)
  • a second pressure regulating valve 60 '' ' between the ball valve 70 and the check valve 72, before the tap for the first control terminal 56, respectively.
  • extinguishing agent container 10 and in particular of the compressed gas cylinder 28 and its integrated valve block 30 will be explained in more detail below with reference to FIG. 2 and FIGS. 6-15.
  • extinguishing agent canister 10 and valve block 30 in these figures correspond in structure to the schematic illustration of Figure 3, that is, the first fire extinguishing device 50 for relatively low extinguishing pressure (e.g., 4 bar).
  • first fire extinguishing device 50 for relatively low extinguishing pressure (e.g., 4 bar).
  • those skilled in the art will readily be able to make the necessary adjustments according to the second and third variants for medium or high extinguishing pressure.
  • FIG. 2 shows in cross section the first pressure control valve 52, which is arranged as a first pressure reducing stage with a correspondingly shaped, multi-stage housing and valve seat bore 89 in the thickened bottom of the compressed gas cylinder 28. 2 also shows a rupture disk device 88, which ensures the maximum internal pressure of the compressed gas cylinder 28 in order to avoid an explosion due to excessive heating, for example in case of fire.
  • Both fittings serve the thickened bottom plate, which forms the main body of the valve block 30, as a housing and for the pressure control valve 52 as a valve seat. From Fig.2 it can be seen that the pressure control valve 52 is connected via a connecting hole 91 directly to the interior of the compressed gas cylinder 28.
  • the rupture disc device 88 also includes a multi-stage bore and is connected by means of a connecting bore 93 with the interior.
  • a filling or test port 86 is provided, via which the compressed gas cylinder 28 can be refilled or checked.
  • Figure 6 shows the extinguishing agent container 10 in side view from the side of the second closure 16.
  • Figure 6 shows the externally accessible fittings in the valve block 30, namely first and second pressure control valve 52, 60; Creeping gas fuse 64; Ball valve 70; Rupture disc device 88; and a high pressure gauge 94 for inspecting the internal pressure of the pressure fals 28.
  • the switching valve 32 is arranged with a corresponding multi-stage housing and valve seat bore 95 in the valve block 30.
  • the switching valve 32 comprises an inner, axially displaceable control piston 96 which is held in position by means of the control terminals 56, 58 (58 is shown in Fig. 9).
  • the ball valve 70 is connected to a connection nipple for the detector line.
  • Fig.7 also the preferred embodiment of the check valve 72 can be seen.
  • the check valve 72 is housed as a blocking element for and together with a central, multi-stage through-bore (see Fig.10) in the control piston 96.
  • FIG. 7 further shows the second pressure control valve 60 and its housing and valve seat bore 97 in the valve block 30.
  • the connection between the output of the switching valve 32 and the second pressure control valve 60 is ensured by a connecting hole 99, which is inclined with respect to the longitudinal axis of the compressed gas cylinder 28.
  • Fig. 8 shows next to another view of the switching valve 32 and the rupture disc device 88, the pressure relief valve 66 and the vent valve 68, which are screwed in the second closure and connected directly to the propellant space 24.
  • FIG. 9 shows a further view of the switching valve 32 and the first pressure regulating valve 52.
  • FIG. 9 shows, in particular, the connection between the outlet of the first pressure regulating valve 52 and the inlet of the switching valve 32, which is secured by a corresponding connecting bore 101 in the thickened bottle bottom, the latter with respect to the longitudinal axis of the compressed gas cylinder 28 extends obliquely.
  • the input of the switching valve 32 coincides with the control connection 58.
  • 9 also shows a valve insert 98, which forms the first pressure regulating valve 52 together with the housing and valve seat bore 89.
  • the control piston 96 is axially displaceably guided in a precisely fitting axial blind hole 103 in a valve insert 104 of the switching valve 32.
  • a transverse bore 105 in the valve insert 104 forms the switchable connection between the input and the output of the switching valve 32.
  • the rest and initial position of the control piston 96 is set to "closed", ie in abutment at the closed end of the blind bore 103. This will be based on appropriately selected Pressure cross-sections on the control piston 96 of the control valve 32 achieved.
  • FIG. 11 shows the second pressure control valve 60 and the high pressure gauge 94 in longitudinal cross section.
  • Figure 11 shows in the valve block 30 a multi-stage receiving bore 109 for the high pressure gauge 94.
  • the receiving bore 109 opens axially into a connecting hole 111 which connects the high pressure gauge 94 with the interior of the compressed gas cylinder 28.
  • FIG. 11 furthermore shows a valve insert 102, which together with the housing and valve seat bore 97 forms the second pressure regulating valve 60.
  • FIG. 12 and 13 show further cross-sections of the fitting block 30 in the bottom of the compressed gas cylinder 28.
  • An outlet bore 113 connects the second pressure control valve 60 to the outside to allow a pressure reduction, as shown in Fig.12. By venting the spring chamber of the pressure regulating valve 60 to the atmosphere, the outlet bore 113 ensures a pressure difference on both sides of the valve piston. From FIG. 13, the second pressure control valve 60, the creeping gas safety device 64 and the bursting disk device 88 can be seen again.
  • an outlet bore 115 which is guided transversely to the longitudinal axis of the compressed gas cylinder 28, is shown in the instrument cluster 30.
  • the outlet bore 115 opens on the one hand into the outlet of the second pressure control valve 60 and on the other hand into the propellant space 24 and forms the outlet opening of the compressed gas cylinder 28, i. the pressure gas chamber 26 for controlled pressurization of the propellant space 24. Due to the above-mentioned, shorter axial extent of the guide bush 40 of the piston 20, the mouth of the outlet bore 115 is always exposed in the propellant space 24.
  • FIG. 13 also shows the receiving bores 117, 119 for creeping gas safety device 64 and for the bursting disk device 88.
  • the method is characterized in that, on the one hand, the backward extrusion is carried out such that the bottom of the bottle as a massive, thickened bottom plate 202, i. as a solid body, is configured and on the other hand, the processing of the compressed gas cylinder blank 200 to a compressed gas cylinder comprises at least making a receiving bore for a valve in the solid, thickened bottom plate 202.
  • FIG. 14 shows a possible compressed gas cylinder blank 200 produced in this method with a solid, thickened base plate 202 as bottle bottom, a bottle jacket 204 connected thereto and a bottle neck 206.
  • the solid, thickened base plate 202 forms a cylindrical solid body with the same Radius as the bottle jacket 204.
  • the numbers used in the following in parenthesis refer to examples of Figures 2 and 6 to 13.
  • the preparation of a receiving bore for a valve when processing the compressed gas cylinder blank 200 to a compressed gas cylinder 28 comprises, for example, at least one housing and valve seat bore (89, 95, 97), and generally at least one connecting bore (91, 93) to the interior of the Compressed gas cylinder and at least one outlet hole (115) to the outside in the thickened, solid bottom plate 202.
  • a valve block 30 in which the required for the application of the compressed gas cylinder 28 valves and fittings can be completely installed.
  • a variant of a compressed gas cylinder 280, which is generated in this way is shown in Fig. 15.
  • receiving bore which perform the dual function of valve seat and valve housing
  • receiving bores which merely serve as a receptacle for conventional valves.
  • the advantage is lost that the connection sealing surface of a conventional valve with its own housing is unnecessary if the receiving bore also forms the valve seat.
  • a compressed gas cylinder 28, 280 is generated, in which a valve block 30 is an integral part of the compressed gas cylinder 28, 280.
  • a valve block 30 is an integral part of the compressed gas cylinder 28, 280.
  • the expansion of the solid, thickened bottom plate 202 after scannchen preferably at least 50mm and can be 5 to 15 times the wall thickness of the bottle jacket.
  • housing and valve seat bores (89, 95, 97) can be accommodated in the solid, thickened bottom plate 202.
  • the conduit connections between the valves incorporated later herein are preferably formed by connection bores (99, 101, 107) in the thickened, solid bottom plate 202, which run obliquely with respect to the longitudinal axis of the compressed gas cylinder. This makes it possible to make the processing of the compressed gas cylinder blank 200 as far as possible from the end face of the bottom plate 202.
  • the housing and valve seat bores (89; 95; 97) are multi-step bores which receive the male part Components accordingly.
  • such a novel compressed gas cylinder can certainly prove advantageous in other fields of application.
  • this is interesting for safety-relevant applications, in addition to the fire-fighting equipment, for example in the medical field, e.g. for emergency respirators.
  • the compact and safe design of such a compressed gas cylinder is advantageous.
  • the separate pressure gas chamber 26; 26 ' also arranging a pressure regulating valve 52 (not shown in Fig.1) is made possible.
  • the Duckregelventil 52 prevents the unwanted drop from the extinguishing agent pressure in the extinguishing agent space 22; 22 'and thus the drop in the extinguishing agent throughput during the deletion process.
  • the piston 20; 20 'around the pressure gas chamber 26; 26 ' is arranged axially displaceable, the advantages of a piston extinguishing agent container are maintained in a space-saving manner, and in particular allows the above advantages without additional external pressure vessel.
  • the extinguishing agent container 10; 10 ' can be through this design as a compact module together with pressure vessel 28; 28 'and install fittings, remove and replace if necessary, for example, for statutory maintenance purposes.
  • this extinguishing agent container 10 is designed to save space, since special holders for the compressed gas cylinder 28 omitted, and the valves are largely installed in the built-in pressure cylinder 28 dash block 30.
  • the latter also protects the fittings from damage, e.g. during transport or improper use.
  • the storage of the propellant gas is improved with regard to its safety against leaks, in that at least one sealing surface to be sealed between bottle neck and fittings is eliminated.
  • each of the fire extinguishing devices 50, 50 ", 50 '" constitutes an automatic protection device operating without external energy which triggers automatically in the event of a fire.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
EP06100013A 2006-01-02 2006-01-02 Dispositif d'extinction de feu avec réservoir ainsi qu'une bouteille à gaz comprimé correspondante Withdrawn EP1803488A1 (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
EP06100013A EP1803488A1 (fr) 2006-01-02 2006-01-02 Dispositif d'extinction de feu avec réservoir ainsi qu'une bouteille à gaz comprimé correspondante
US12/159,880 US8083003B2 (en) 2006-01-02 2006-12-12 Fire extinguisher with a container holding a fire extinguishing substance and corresponding compressed-gas cylinder
CN2006800503108A CN101351244B (zh) 2006-01-02 2006-12-28 带有灭火剂容器的灭火装置以及相应的压缩气体瓶
EP06830847A EP1968715B1 (fr) 2006-01-02 2006-12-28 Extincteur dote d'un reservoir d'agent d'extinction
RU2008131499/12A RU2407570C2 (ru) 2006-01-02 2006-12-28 Устройство пожаротушения с резервуаром для огнегасящего средства, а также соответствующим баллоном для сжатого газа
AT06830847T ATE516855T1 (de) 2006-01-02 2006-12-28 Feuerlöschvorrichtung mit löschmittelbehälter
CA2638173A CA2638173C (fr) 2006-01-02 2006-12-28 Dispositif pour l'extinction d'incendies pourvu d'un recipient contenant une substance d'extinction d'incendies et bouteille a gaz comprime correspondante
PCT/EP2006/070259 WO2007077195A1 (fr) 2006-01-02 2006-12-28 Extincteur dote d'un reservoir d'agent d'extinction et bonbonne de gaz sous pression correspondante
NO20083302A NO340163B1 (no) 2006-01-02 2008-07-25 Brannslukkreanordning med slukkemiddelbeholder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06100013A EP1803488A1 (fr) 2006-01-02 2006-01-02 Dispositif d'extinction de feu avec réservoir ainsi qu'une bouteille à gaz comprimé correspondante

Publications (1)

Publication Number Publication Date
EP1803488A1 true EP1803488A1 (fr) 2007-07-04

Family

ID=36498952

Family Applications (2)

Application Number Title Priority Date Filing Date
EP06100013A Withdrawn EP1803488A1 (fr) 2006-01-02 2006-01-02 Dispositif d'extinction de feu avec réservoir ainsi qu'une bouteille à gaz comprimé correspondante
EP06830847A Not-in-force EP1968715B1 (fr) 2006-01-02 2006-12-28 Extincteur dote d'un reservoir d'agent d'extinction

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP06830847A Not-in-force EP1968715B1 (fr) 2006-01-02 2006-12-28 Extincteur dote d'un reservoir d'agent d'extinction

Country Status (8)

Country Link
US (1) US8083003B2 (fr)
EP (2) EP1803488A1 (fr)
CN (1) CN101351244B (fr)
AT (1) ATE516855T1 (fr)
CA (1) CA2638173C (fr)
NO (1) NO340163B1 (fr)
RU (1) RU2407570C2 (fr)
WO (1) WO2007077195A1 (fr)

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CN101229417B (zh) * 2007-11-06 2011-05-18 中汽客汽车零部件（厦门）有限公司 一种强力自动灭火装置
CN101972530B (zh) * 2010-09-03 2012-03-07 北京工业大学 一种可充气式多用途水雾灭火器
US8869905B2 (en) * 2010-09-27 2014-10-28 Universal Delivery Devices, Inc. Actuation mechanism for a fire extinguisher
CN102949790B (zh) * 2011-08-16 2015-01-21 西安坚瑞安全应急设备有限责任公司 一种气溶胶灭火装置泄爆方法
CN102949795B (zh) * 2011-08-16 2014-11-12 西安坚瑞安全应急设备有限责任公司 一种泄爆型的气溶胶灭火装置内筒
US9302128B2 (en) 2011-10-25 2016-04-05 Kidde Technologies, Inc. Automatic fire extinguishing system with internal dip tube
US9192798B2 (en) 2011-10-25 2015-11-24 Kidde Technologies, Inc. Automatic fire extinguishing system with gaseous and dry powder fire suppression agents
US9308406B2 (en) * 2011-10-25 2016-04-12 Kidde Technologies, Inc. Automatic fire extinguishing system having outlet dimensions sized relative to propellant gas pressure
US9463341B2 (en) 2011-10-25 2016-10-11 Kidde Technologies, Inc. N2/CO2 fire extinguishing system propellant gas mixture
DE102012018541B4 (de) * 2012-09-19 2015-08-06 Dräger Safety AG & Co. KGaA Druckgasflaschenhalter für ein Atemschutzgerät
CN102935273B (zh) * 2012-12-06 2015-11-04 威特龙消防安全集团股份公司 一种非贮压式活塞加压自动灭火装置
US10603530B2 (en) 2017-07-16 2020-03-31 Robert S. Thomas, III Time delayed actuation mechanism for a fire extinguisher
CN108057463A (zh) * 2017-12-19 2018-05-22 孟令航 实验室危险化学品管理装置
CN109481868B (zh) * 2018-11-22 2023-09-22 陕西白杨道胜安防科技有限公司 电动汽车产气式自动灭火装置
DE102018132828A1 (de) 2018-12-19 2020-06-25 Minimax Gmbh & Co. Kg Löschmittelbehälter
CN111106276B (zh) 2018-12-28 2021-02-02 宁德时代新能源科技股份有限公司 一种电池包的喷淋系统、电池包
CN115869562A (zh) * 2022-12-22 2023-03-31 哲弗智能系统（上海）有限公司 灭火装置
CN116212282B (zh) * 2023-03-24 2023-12-05 江苏日明消防设备股份有限公司 一种智能消防灭火器

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Also Published As

Publication number Publication date
US8083003B2 (en) 2011-12-27
RU2407570C2 (ru) 2010-12-27
ATE516855T1 (de) 2011-08-15
CA2638173A1 (fr) 2007-07-12
CA2638173C (fr) 2014-11-18
CN101351244A (zh) 2009-01-21
CN101351244B (zh) 2012-09-26
EP1968715A1 (fr) 2008-09-17
NO340163B1 (no) 2017-03-20
NO20083302L (no) 2008-09-19
EP1968715B1 (fr) 2011-07-20
US20100116515A1 (en) 2010-05-13
RU2008131499A (ru) 2010-02-10
WO2007077195A1 (fr) 2007-07-12

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