[go: up one dir, main page]

WO2011123060A1 - Extincteur actionné par cartouche - Google Patents

Extincteur actionné par cartouche Download PDF

Info

Publication number
WO2011123060A1
WO2011123060A1 PCT/SG2010/000130 SG2010000130W WO2011123060A1 WO 2011123060 A1 WO2011123060 A1 WO 2011123060A1 SG 2010000130 W SG2010000130 W SG 2010000130W WO 2011123060 A1 WO2011123060 A1 WO 2011123060A1
Authority
WO
WIPO (PCT)
Prior art keywords
fire extinguisher
improved cartridge
cartridge
operated fire
hollow cylindrical
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.)
Ceased
Application number
PCT/SG2010/000130
Other languages
English (en)
Inventor
Choon Lye Tan
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.)
FIRE ARMOUR Pte Ltd
Original Assignee
FIRE ARMOUR Pte Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by FIRE ARMOUR Pte Ltd filed Critical FIRE ARMOUR Pte Ltd
Priority to PCT/SG2010/000130 priority Critical patent/WO2011123060A1/fr
Publication of WO2011123060A1 publication Critical patent/WO2011123060A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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

Definitions

  • the present invention is an improved cartridge-operated fire extinguishers, both portable and wheel-mounted, of 4 kg to 50 kg and multiples of 50 kg weight.
  • fire extinguishers There are two main types of fire extinguishers: stored pressure and cartridge- operated. Both types of fire extinguishers contain a propellant gas and a fire fighting agent or extinguishant. The main difference between both types lie in the method of discharge of the propellant and the nature of the extinguishant.
  • the invention is an improved cartridge-operated fire extinguisher.
  • Cartridge-operated extinguishers contain the propellant gas in a separate cartridge which is punctured or by opening a valve prior to use, ejecting the propellant through a gas tube into the extinguishant, which is then forcefully discharged. They have the advantage of simple and prompt recharge, allowing an operator to discharge the extinguisher, recharge it, and return to the fire in a reasonable amount of time.
  • the propellant could be compressed carbon dioxide or nitrogen or mixture of carbon dioxide and nitrogen.
  • Overhaul C0 2 extinguishers due to their high operating pressure, are subject to pressure vessel safety legislation and must be hydraulic pressure tested, inspected internally & externally and date stamped every 10 years or less. As valves cannot be pressure tested, a new valve is also fitted. If any part of the extinguisher (valve, horn, etc) is replaced with a part from another manufacturer, the extinguisher will lose its fire rating. This may invalidate insurance, as would incorrect or inadequate servicing if such practices were to be found.
  • External Cartridge-operated fire extinguishers suffer failures to discharge due to the blockage or choking of the gas tube for passage of propellant gas into the body of the cylinder to force the extinguishant out.
  • Such blockages are hard to detect because the design of the cartridge is unfriendly to visual inspections making it impossible to replace even by the manufacturer.
  • the gas tube for discharge of propellant is welded on the inside the body of cylinder of the fire extinguisher during manufacturing. The gas tube therefore cannot be inspected.
  • a fire fighting system comprising of a plurality of fire extinguishers arranged in a systematic manner which can be switched on and are directed at the source of fire. If all the fire extinguishers can be arranged to make a fire fighting system to fight a fire, the combined fire fighting power would be equivalent to the use of an fire engine.
  • the improved cartridge-operated fire extinguisher of the invention uses a "pre- filled replaceable inner container" which is packed into the cylinder body of the conventional cartridge-operated fire extinguisher.
  • a pre-filled replaceable inner container will ensure the maintenance by users such as ship crew can be easily carried out. This is because refilling the extinguishant into an older used replaceable inner container will actually require more effort than replacing it with a new pre-replaceable inner container.
  • replenishment of extinguishant by insertion of a new pre-filled replaceable inner container will be much more convenient. The property owner can also be assured that the fire extinguisher maintenance company or its own maintenance crew is carrying out the maintenance properly.
  • a first object of the invention is an improved cartridge-operated fire extinguisher weighing from 4 kg to 50 kg and in multiples of 50 kilos, with an external cartridge connected to the improved fire extinguisher, said external cartridge containing a gas propellant which upon activation, is ejected into an extinguishant which then forces the extinguishant through an outlet hose leading from a hose connection at the neck of the improved cartridge-operated fire extinguisher, the improved cartridge-operated fire extinguisher comprising :- a first hollow cylindrical portion;
  • a pre-filled replaceable inner container characterised in that the pre-filled replaceable inner container is pre-filled with extinguishant and is packed into the first hollow cylindrical portion and the second hollow cylindrical portion.
  • a second object of the invention is an improved cartridge-operated fire extinguisher weighing from 4 kg to 50 kg and in multiples of 50 kilos, with an external cartridge connected to the improved cartridge-operated fire extinguisher, said external cartridge containing a gas propellant which upon activation, is ejected into an extinguishant which then forces the extinguishant through an outlet hose leading from a hose connection at the neck of the improved cartridge-operated fire extinguisher, the improved cartridge-operated fire extinguisher comprising:- a first hollow cylindrical portion, said first hollow cylindrical
  • the neck at one end and an opening at the other end; a second hollow cylindrical portion, said second cylindrical portion having an opening at its first end and a closed base at the other end; a securing means to join the first hollow cylindrical portion to the second hollow cylindrical portion; and a replaceable inner container pre-filled with the extinguishant characterised in that the replaceable inner container is packed into the second hollow cylindrical portion through its opening, and the first hollow cylinder fitted into the replaceable inner container, the first end of the second hollow cylindrical portion joined to other end of the first hollow cylindrical portion by the securing means.
  • the first hollow cylindrical portion for an improved fire extinguisher has a flange at the opening at the other end.
  • the second hollow cylindrical portion for an improved cartridge- operated fire extinguisher has a flange at the opening at its first end.
  • the flange in the first hollow cylindrical portion for an improved cartridge-operated fire extinguisher has two or more holes spaced apart.
  • the first hollow cylindrical portion for an improved cartridge-operated fire extinguisher has a hose connection at the neck of the first hollow cylindrical portion for insertion of the outlet hose.
  • the first hollow cylindrical portion for an improved cartridge-operated fire extinguisher has a cylinder valve at the neck of the first hollow cylindrical portion for insertion of an inspectable gas tube.
  • the flange in the second hollow cylindrical portion for an improved cartridge-operated fire extinguisher has two or more holes spaced apart.
  • the securing means for an improved cartridge-operated fire extinguisher has two or more nuts and bolts.
  • the securing means for an improved cartridge-operated fire extinguisher has two or more fasteners.
  • the securing means for an improved cartridge-operated fire extinguisher has two or more clamps.
  • the improved cartridge-operated fire extinguisher has an opening at the second end of the first portion and an opening at the first end of the second portion which are joined to each other at one point by one or more hinges so that the first portion and the second portion can be unhinged.
  • a third object of the invention for an improved cartridge-operated fire extinguisher is a gas regulator to maintain a constant even flow of the extinguishant upon its release from the outlet.
  • the gas regulator for an improved cartridge-operated fire extinguisher has an inlet valve connected to the cartridge to regulate the flow of gas propellant from the cartridge, and an outlet valve cum inspectable gas tube to regulate the flow of propellant gas.
  • a fourth object of the invention is an outlet valve cum inspectable gas tube which has a first opening at a first end and a second opening at a second end; the first end of the outlet valve cum inspectable gas tube connected to the regulator and the second end of the outlet valve cum inspectable gas tube protruding inside the replaceable inner container and passing through the neck connection of the first cylindrical hollow portion.
  • the outlet valve cum inspectable gas tube for a gas regulator has a second end of the gas tube which is covered by an one way rubber cover.
  • the outlet valve cum inspectable gas tube for a gas regulator has a first end of the gas tube coupled to the gas regulator by a first compression ring system.
  • the outlet valve cum inspectable gas tube for a gas regulator has a second end of the gas tube which is coupled to a second compression ring system.
  • the second compression ring system is fitted into the neck connection of the first hollow cylindrical portion.
  • the outlet valve cum inspectable gas tube for a regulator allows the condition of the outlet valve cum inspectable gas tube to be checked by taking out the neck connection, uncoupling the first compression system from the gas regulator, uncoupling the second compression system, taking the outlet valve cum inspectable gas tube and removing the rubber cover, inserting a tip of an air pump into the first end of the outlet valve cum inspectable gas tube and pressing the air pump to force air through the outlet valve cum inspectable gas tube to check for blockage of the outlet valve cum inspectable gas tube.
  • a fifth object of the invention is a method of checking the condition of the outlet valve cum inspectable gas tube comprising the following steps:- removing the neck connection; uncoupling the first compression ring system; uncoupling the second compression ring system; removing the rubber cover at the tip of the first end of the outlet valve cum inspectable gas tube taking out the outlet valve cum inspectable gas tube inserting an air pump into the first end of the outlet valve cum inspectable gas tube pressing the air pump to force air into the outlet valve cum 10 000130 inspectable gas tube of the improved cartridge-operated fire extinguisher; and replacing the outlet valve cum inspectable gas tube if air could not be forced through.
  • a sixth object of the invention is a replaceable inner container having a body shaped to fit the hollow cylindrical body.
  • the replaceable inner container for an improved cartridge-operated fire extinguisher has a body shaped to fit the hollow cylindrical body and a cover for a hole and handle at one end and a puncture point at the other end.
  • the replaceable inner container has a cover for the hole which is removed for filling of extinguishant.
  • the replaceable inner container has a puncture point which is punctured for release of propellant into the extinguishant which is then ejected the _extinguishant out of the replaceable inner container.
  • the replaceable inner container has a handle which is used to lift the replaceable inner container, to remove an used replaceable inner container from the hollow cylinder body or to fit a new replaceable inner container into the hollow cylinder body.
  • the replaceable inner container is made of plastic
  • the replaceable inner container is made of polyurethane
  • the replaceable inner container is made of fabric which is strong enough to contain up to 50 kilos of extinguishant and is not hygroscopic.
  • the replaceable inner container is made or any material which is strong enough to contain up to 50 kilos of extinguishant and is not hygroscopic.
  • a seventh object of the invention is an electric pressure generator on the valve of the improved cartridge-operated fire extinguisher.
  • the pyromechanical actuator and valve are wired to a very small power supply of less than 1 amp.
  • the power supply for a pyromechanical actuator for an improved cartridge-operated fire extinguisher is one or more batteries.
  • the power supply for a pyromechanical actuator for an improved cartridge-operated fire extinguisher is from electrical generators.
  • the improved cartridge-operated fire extinguisher has additionally a controller, a pyromechanical actuator on the valve and electrical wiring to a source of electrical power wherein the improved cartridge-operated fire extinguisher can function as a fire fighting system upon activation by the pyromechanical actuator to discharge the extinguishant automatically and without user intervention .
  • An eighth object of the invention is a fire fighting system consisting of a plurality of improved cartridge-operated fire extinguishers arranged in a specific configuration in a confined space, said plurality of improved cartridge-operated fire extinguishers connected to each other and to controller, a pyromechanical actuator and electrical wiring to a source of electrical power wherein the improved cartridge-operated fire extinguisher can be activated to discharge the extinguishant automatically and without user intervention.
  • a ninth object of the invention is a method of refilling an improved cartridge- operated fire extinguisher using the replaceable inner container of the invention, comprising these steps:- turning the improved cartridge-operated fire extinguisher so that the neck of the improved cartridge-operated fire extinguisher is upright; removing the securing means at the flanges; separating the first hollow cylindrical portion from the
  • a tenth object of the invention is a method of checking whether the improved cartridge-operated fire extinguisher has been refilled after discharge, comprising the following steps:- turning the improved cartridge-operated fire extinguisher so that the neck of the improved cartridge-operated fire extinguisher is upright; removing the securing means at the flanges; separating the first hollow cylindrical portion from the second hollow cylindrical portion; checking the replaceable inner container; bringing the first and second hollow cylindrical portions together; securing the first and second hollow cylindrical portions with the securing means; and returning the improved cartridge-operated fire extinguisher to its normal position
  • FIG. 1A is a cross section view of a cartridge operated water fire extinguisher of the prior art, where the cartridge is located inside the cylindrical body of the fire extinguisher (referred to as " internal cartridge ").
  • FIG. 1B is a cross section view of a cartridge operated powder fire extinguisher of the prior art, where the cartridge is located externally outside the cylindrical body of the fire extinguisher (referred to as " external cartridge ").
  • FIG. 2A is a close up of the conventional gas tube leading from an internal cartridge fire extinguisher and which directs the propellant gas into the extinguishant.
  • FIG. 2B is a close up of the conventional gas tube leading from an external cartridge fire extinguisher and which directs the propellant gas into the extinguishant.
  • FIG. 3 is a cross section view of the improved cartridge-operated fire extinguisher.
  • FIG. 4 is an expanded cross section view of the improved cartridge-operated fire extinguisher showing the gas regulator, outlet valve cum inspectable gas tube which are the other inventive features of the improved cartridge-operated fire extinguisher.
  • FIG. 5 is a table illustrating the flow rate of extinguishant from an improved cartridge-operated fire extinguisher and from a conventional fire extinguisher.
  • FIG. 6 is a cross section view of the first step in replenishing the extinguishant in the improved cartridge-operated fire extinguisher.
  • FIG. 7 is a cross section view of the second step in replenishing the extinguishant in the improved cartridge-operated fire extinguisher.
  • FIG. 8 is a cross section view of the third step in replenishing the extinguishant in the improved cartridge-operated fire extinguisher.
  • FIG. 9 is a cross section view of the fourth step in replenishing the extinguishant in the improved cartridge-operated fire extinguisher.
  • FIG. 10 is a cross section view of the fifth step in replenishing the extinguishant in the improved cartridge-operated fire extinguisher.
  • FIG. 1 1 is a cross section view of the sixth and last step in replenishing the extinguishant in the improved cartridge-operated fire extinguisher.
  • FIG. 12 is an illustration of how an arrangement of improved cartridge- operated fire extinguishers can be used as a fire fighting system to fight fires on board a sea-going vessel.
  • FIG. 13 is a cross section view of another embodiment of the improved cartridge-operated fire extinguisher in which the improved cartridge-operated fire extinguisher is modified to fit the replaceable inner container.
  • FIG. 1A is a cross section view of a cartridge operated water fire extinguisher of the prior art, where the cartridge (5) is located inside the cylindrical body (6) of the fire extinguisher. This type of cartridge operated fire extinguisher is referred to as "internal cartridge fire extinguisher".
  • FIG. 1A is a cross section view of a cartridge operated water fire extinguisher of the prior art, where the cartridge (5) is located inside the cylindrical body (6) of the fire extinguisher. This type of cartridge operated fire extinguisher is referred to as "internal cartridge fire extinguisher".
  • FIG. 1 B is a cross section view of a cartridge operated powder fire extinguisher of the prior art, where the cartridge (5) is located externally outside the cylindrical body (6) of the fire extinguisher.
  • This type of cartridge operated fire extinguisher is referred to as "internal cartridge fire extinguisher”.
  • the cylindrical body (6) is filled with extinguishant in order for it to perform its function.
  • Cartridge-operated fire extinguishers contain the propellant (in gaseous form and under pressure) in a separate cartridge (5) which is punctured/opened prior to discharge. When punctured, the propellant gas will rush through a gas tube leading from the cartridge (5) into the cylindrical body (6) of the fire extinguisher.
  • the cartridge (5) could be located outside the cylindrical body (6) of the fire extinguisher (called “external cartridge”) or internally inside the cylindrical body (6) of the fire extinguisher (called “internal cartridge”). They have the advantage of simple and prompt recharge, allowing an operator to discharge the extinguisher, recharge it, and return to the fire in a reasonable amount of time.
  • the propellant gas used in cartridge-operated fire extinguishers could be compressed carbon dioxide, nitrogen or a mixture of carbon dioxide and nitrogen.
  • a discharge mechanism is provided in the fire extinguisher so that when the discharge mechanism is activated, a valve in the neck of the metal cylinder is opened, and at the same time, a disc (as in FIG. 3 and FIG.
  • FIG. 2A shows a close up view of the construction of the gas tube (4) (for passage of propellant gas) and the powder tube (4) for ejection of extinguishant in a conventional internal cartridge fire extinguisher.
  • the gas tube (3) and the powder tube (4) are usually reinforced together with a metal or jubilee clip (8), because it is easier to insert both tubes simultaneously and thus easier to seal the dry powder fire extinguisher.
  • the powder tube (4) has to be unscrewed first. While doing this, the metal or jubilee clip (8) will be permanently damaged. Since the existing metal or jubilee clip (8) is permanently formed by using special tools, once the metal or jubilee clip (8) is removed, it will be damaged. Therefore a new metal or jubilee clip (8) has to be fitted into the conventional fire extinguisher after checking. In addition, one of the drawbacks of using the metal or jubilee clip (8) is that it will always be damage by corrosion or jammed by extinguishant powder. The rubber on the gas tube (3) is attached by clamping a metal clip or jubilee clip (8).
  • FIG. 2B is a close up view of the circled portion of FIG. 1 B.
  • FIG. 2B shows the construction of the gas tube (3) and the powder tube (4) for ejection of extinguishant for a conventional external cartridge fire extinguisher.
  • the gas tube (3) normally is welded along the wall of the cylindrical body (6) during the manufacturing process of the fire extinguisher. Hence, the external cartridge fire extinguisher will be condemned when the gas tube (3) is choked or damaged.
  • the metal or jubilee clip (8) is permanently formed by using special tools. Once the metal or jubilee clip (8) is removed, it will be damaged and a new metal or jubilee clip (8) is required. In addition, one of the drawbacks of using the metal or jubilee clip (8) is that it will always be damaged by corrosion or jammed by extinguishant powder. Detailed description of the improved cartridge-operated fire extinguisher
  • FIG. 3 is a cross section view of the improved cartridge-operated fire extinguisher (1 ).
  • FIG. 4 is an expanded cross section view of the improved cartridge-operated fire extinguisher (1) showing the other inventive features of the improved cartridge- operated fire extinguisher (1):-.
  • the improved cartridge-operated fire extinguisher (1 ) continues to use the existing 4 kilo to 50 kilo metal cylinders or cylinders in multiples of 50 kg weights.
  • the workings of the improved cartridge-operated fire extinguisher (1 ) remains much the same as conventional cartridge-operated fire extinguishers in that upon activation of the fire extinguisher, a gas propellant passes through an outlet valve cum inspectable gas tube (13) into the pre-filled replaceable inner container (19) of the improved cartridge-operated fire extinguisher (1), forcing the extinguishant out of the improved cartridge-operated fire extinguisher (1).
  • the main inventive features of the improved cartridge-operated fire extinguisher (1 ) are:- a replaceable inner container (19) pre-filled with extinguishant,
  • the improved cartridge-operated fire extinguisher (1 ) is a conventional metal cylindrical body (6) which now consists of two portions, a first portion and a second portion. Both the first portion and second portion end with flanges which meets when assembled together, and both portions of the cylindrical body (6) are secured to each other with two or more securing means.
  • the securing means may be nuts and bolts (11 ). Alternatively, the securing means could be fasteners. The securing means could also be clamps.
  • the first and second portions can also be connected by a hinge at the connecting flanges and secured by securing means such as two or more nuts and bolts (11 ).
  • replaceable inner container (19) (which is pre-filled with extinguishant) to be packed into the cylindrical body (6) of the improved cartridge-operated fire extinguisher (1 ) in a simple operation.
  • the inventive replaceable inner container (19) is pre-filled with the extinguishant and comes in sizes of 4 kilo to 50 kilo or multiplies of 50 kilo of extinguishant.
  • the use of replaceable inner container (19) pre-filled with extinguishant overcomes many of the drawbacks faced in conventional cartridge-operated fire extinguishers, which had been mentioned earlier.
  • the replaceable inner container (19) may be made of plastic or polyurethane or fabric or any material which is strong enough to contain up to 50 kilos of extinguishant and is not hygroscopic.
  • the improved cartridge-operated fire extinguisher (1) can be manufactured in two portions, so as to enable the replaceable inner container (19) of extinguishant to be packed into the improved cartridge-operated fire extinguisher (1 ) in a simple operation.
  • the improved cartridge-operated fire extinguisher (1 ) can also be manufactured to fit the shape of the replaceable inner container (19) as shown later on in FIG. 12.
  • the other parts of the improved cartridge-operated fire extinguisher (1 ) are similar to conventional fire extinguishers including:-
  • the gas regulator (15) ensures a constant flow when the improved cartridge- operated fire extinguisher (1) is activated.
  • the inlet valve of the gas regulator (13) is fitted to the cartridge (5) of the improved cartridge-operated fire extinguisher (1) and the outlet valve fitted to an outlet valve cum inspectable gas tube (13) which leads into the hose connection/cylinder valve of the improved cartridge-operated fire extinguisher (1).
  • the outlet valve cum inspectable gas tube (13) has a first opening at a first end and a second opening at a second end. The first end of the outlet valve cum inspectable gas tube ( 3) is connected to the outlet valve of the gas regulator (15).
  • outlet valve and inspectable gas tube (13) is made as a single piece, hence it is referred to as "outlet valve cum inspectable gas tube (13)".
  • the second end of the outlet valve cum inspectable gas tube (13) leads to the inside of the replaceable inner container (19) and cylindrical body (6), through the hose connection/cylinder valve [at neck of the improved cartridge-operated fire extinguisher (1 )].
  • the second end of the outlet valve cum inspectable gas tube (13) passes through the hose connection at the hose connection/cylinder valve, said second end being covered with a one way rubber cover (17).
  • FIG. 4 is an expanded cross section view of the neck of the improved cartridge-operated fire extinguisher (1 ).
  • a gas regulator (15) fitted into the gas cartridge (5) will control the release of extinguishant, overcoming the problem of varying pressure and thus declining pressure and flow of extinguishant over the duration of fire fighting.
  • the gas regulator (15) is now described with reference to FIG. 4, in particular the blown up picture of the outlet valve cum inspectable gas tube (13).
  • the gas regulator (15) has an outlet valve which allows the propellant gas to be released at a constant rate.
  • the outlet valve is connected to an outlet valve cum inspectable gas tube (13).
  • a first end of the outlet valve cum inspectable gas tube (13) is connected to the outlet valve of the gas regulator (15) by a first compression ring system coupling (23).
  • a second end of the outlet valve cum inspectable gas tube (13) is connected by a second compression ring system coupling (24) to the hose connection/cylinder valve of the improved cartridge- operated fire extinguisher (1).
  • the second end of the outlet valve cum inspectable tube (13) opens to the inside of the cylindrical body (6) and replaceable inner container (19).
  • a rubber cover (17) which serves as a one way valve is placed at the opening of the second end.
  • This inventive gas regulator (15) with outlet valve cum inspectable gas tube (13) serves to transfer propellant gas from the cartridge (5) to the replaceable inner container (19) at a constant rate. It also offers a quick and simple way to check the contents of the replaceable inner container (19) as well as whether there is any blockage in the outlet valve cum inspectable gas tube (13) itself.
  • the hose connection/cylinder valve at the neck of the improved cartridge-operated fire extinguisher (1) is unscrewed.
  • the hose connection/cylinder valve and outlet valve cum inspectable gas tube (13) is then removed from the replaceable inner container (19).
  • the first compression ring system coupling (23) at the first end of the outlet valve cum inspectable gas tube (13) to the gas regulator (15) is then unscrewed.
  • the second compression ring system coupling (24) to the second end of the outlet valve cum inspectable gas tube (13) is also unscrewed.
  • the rubber cover (17) at the tip of the second end of the outlet valve cum inspectable gas tube (13) is then removed.
  • the outlet valve cum inspectable gas tube (13) is then taken out from the hose connection/cylinder valve.
  • An air pump (25) can be pushed into the first end of the outlet valve cum inspectable gas tube (13).
  • the air pump (25) is then pressed so that air is forced through the outlet valve cum inspectable gas tube (13). If air cannot be forced through, it would indicate a blockage of the outlet valve cum inspectable gas tube (13).
  • any person can check by blowing through the outlet valve cum inspectable gas tube (13) using a simple air pump (25).
  • a simple way to check the workings of the improved cartridge- operated fire extinguisher (1) is achieved. Furthermore, this quick and simple check can be carried out without the need for specialised equipment and can be checked by untrained personnel.
  • the inventive feature of an outlet valve cum inspectable gas tube (13) connected to the gas regulator (15) will overcome the problem associated with inspection of the gas tube (3) of conventional fire extinguisher, such as:- inability to fully discharge the contents. inability to replace gas tube (3) if there is a blockage of gas tube (3). inability to blow though the gas tube (3) to check for blockages.
  • FIG. 5 is a table illustrating the flow rate of extinguishant from an improved cartridge-operated fire extinguisher (1 ) and from a conventional fire extinguisher.
  • a simple pyromechanical actuator (14) on the valve of the improved cartridge-operated fire extinguisher (1 ) is to automatically open the valve when switched on.
  • the pyromechanical actuator (14) and valve are wired to a very small power supply of less than 1 amp.
  • the device of the pyromechanical actuator (14) is useful when a number of improved cartridge-operated fire extinguishers (1 ) are arranged for fire fighting purpose, allowing all the improved cartridge-operated fire extinguishers (1) to be operated automatically. Re-filling process of the Improved cartridge-operated fire extinguisher
  • FIG. 6 to FIG. 1 are cross section views of the first step until the 6 th (last) step in replenishing the extinguishant in the improved cartridge-operated fire extinguisher (1 ).
  • the improved cartridge-operated fire extinguisher (1) is now turned over by gripping its carry handle (10).
  • the improved cartridge-operated fire extinguisher (1 ) When the improved cartridge-operated fire extinguisher (1 ) is turned over, it will be standing on its conventional legs [which in the improved cartridge- operated fire extinguisher (1 ) acts as the carry handle (10)].
  • the two or more nuts and bolts (11 ) which joined both portions at their flanges are taken out.
  • the first portion is then separated from the second portion of the cylindrical body (6).
  • the first portion of the cylindrical body (6) of the improved cartridge-operated fire extinguisher (1 ) has been removed and therefore not shown.
  • the used replaceable inner container (19) is shown still packed inside the walls of the second portion of the improved cartridge-operated fire extinguisher (1).
  • FIG. 7 the used replaceable inner container (19) is now removed from the second portion of the improved cartridge-operated fire extinguisher (1 ).
  • the used replaceable inner container (19) is now shown separated from the second portion of the improved cartridge-operated fire extinguisher (1 ).
  • the second portion of the improved cartridge- operated fire extinguisher (1 ) is now packed with a fresh replaceable inner container (19), pre-filled with extinguishant.
  • the first portion of the improved cartridge-operated fire extinguisher (1 ) is now fitted onto the second portion at their flanges.
  • the two or more nut and bolts (11 ) are inserted into the flange and tightened, closing the improved cartridge-operated fire extinguisher (1) tightly.
  • the replaceable inner container (19) is placed onto the second portion, the first portion is placed on top of the replaceable inner container (19), secured to the second portion by the flange, and tightened by the one or more nuts and bolts (1 ). It can be seen that use of a pre-filled replaceable inner container (19) makes the task of re-filling an improved cartridge-operated fire extinguisher (1) so much easier.
  • the 6 and final step is shown in FIG. 10.
  • the improved cartridge-operated fire extinguisher (1) is now turned over (with the stand facing upwards).
  • the improved cartridge-operated fire extinguisher (1 ) in its normal position is therefore opposite to the conventional fire extinguisher in its normal position.
  • the improved cartridge-operated fire extinguisher (1) When used to fight a fire, its operations would be identical as if a conventional fire extinguisher is used. Since the improved cartridge-operated fire extinguisher (1 ) is on a wheel, it can be pushed to the location of the fire.
  • the improved cartridge-operated fire extinguisher (1 ) works in a slightly different and more effective manner: a. The safety clip is removed, the rupture disc in the cartridge (5)
  • the propellant rushes out through the outlet valve cum inspectable gas tube (13), exiting through the second opening, passing through the rubber cover (17) which acts as a one way valve, preventing backflow of the .extinguishant.
  • the propellant upon entering the replaceable inner container (19) forces the extinguishant out through the outlet hose, ejecting the extinguishant through the nozzle of the hose.
  • the first portion of the cylindrical body (6) removed.
  • the used replaceable inner container (19) is removed and a new replaceable inner container (19) pre-filled with extinguishant is packed into the second portion.
  • the first portion of the cylindrical body (6) is then placed onto the second portion and the nut and bolt ( 1) tightened at the flanges, thus forming the improved cartridge-operated fire extinguisher (1).
  • the task of packing the replaceable inner container (19) into the improved cartridge-operated fire extinguisher (1 ) can be carried out by anyone.
  • the use of the improved cartridge-operated fire extinguisher (1) is thus advantageous for ocean going vessels as the seamen can carry out the repacking of the prefilled plastic container into the improved cartridge-operated fire extinguisher (1 ).
  • the improved cartridge-operated fire extinguisher (1 ) will also enable property owners to check whether refilling had been carried out since the fire extinguisher technician can be simply refill in front of him. Furthermore, the refilling process is swift and can be very easily verified by anyone. With such a simple operation, the task of checking the contents of the fire extinguisher and the task of refilling the fire extinguisher is completed, without the need for special tools nor technical training.
  • the improved cartridge-operated fire extinguisher (1 ) has been described as comprising of two portions, connected to each other at the flanges and secured by nuts and bolts (11 ). It is possible for the first portion and second portion to be connected at the flanges by a hinge and secured by nuts and bolts (11 ).
  • the proposed replaceable inner container (19) containing pre-filled extinguishant will also serve as a back up instead of traditional polyurethane powder bags containing the extinguishant which requires special tools and trained personnel to carry out the refilling operations.
  • the use of the replaceable inner container (19) pre-filled with extinguishant will do away with inadequacies of the current inspection requirements for fire extinguishers:- inability to discharge its entire contents even after inspection caused by spoilage of the extinguishant powder;
  • Fig. 12 is an illustration of how an arrangement of improved cartridge-operated fire extinguishers (1 ) can be used as a fire fighting system to fight fires on board a sea-going vessel.
  • the improved cartridge-operated fire extinguisher (1 ) With the improved cartridge-operated fire extinguisher (1 ), a team of 5 man or more and using 4 units of 25 or 50 kg improved cartridge-operated fire extinguisher (1 ) and one man to pass the spare refill can provide a nonstop fire fighting ability similar to a fire engine. Therefore if an array of improved cartridge-operated fire extinguishers (1 ) are laid out, say in the engine room of a ocean going vessel or any room to be protected in a building. The array of fire extinguishers are connected by wires to an electrical switch, the array of improved cartridge-operated fire extinguishers (1 ) can become a fire fighting system for the particular area, such as the engine room. Should a fire breaks out, all the improved cartridge-operated fire extinguishers (1) in the array can be switched on all at once. The extinguishant can then be directed towards the engines to snuff out any fire.
  • a simple pyromechanical actuator (14) on the valve of the cartridge (5) will enable the valve to open automatically when switched on.
  • the pyromechanical actuator (14) and valve are wired to a very small power supply of less than 1 amp.
  • the improved cartridge-operated fire extinguisher (1 ) can now be turned on and off automatically. Therefore if a number of improved cartridge-operated fire extinguishers (1) are placed together in a confined space, these can function as a fire fighting system.
  • a plurality of improved cartridge-operated fire extinguishers (1 ) are placed at spaced intervals along a wall of a room in a sea going , vessel. Therefore if an array of improved cartridge-operated fire extinguishers (1) are laid out, say in the engine room of an ocean going vessel, or room to be protected in a building and connected by wires to an electrical switch, the array of improved cartridge-operated fire extinguishers (1 ) can become a fire fighting system for the particular area, such as the engine room. Should a fire breaks out, all the improved cartridge-operated fire extinguishers (1) in the array can be switched on all at once. The extinguishant can then be directed towards the engines to snuff out any fire.
  • Each of the improved cartridge-operated fire extinguishers (1) are connected to a 9V battery power supply and wired to each other and to a manual switch. Should a fire break out and the situation warrants the activation of this fire fighting system, the door of the room is shut and the manual switch set to on.
  • Each of the improved cartridge-operated fire extinguisher (1 ) would be activated through the pyromechanicall actuator (14). The extinguishant would be directed at the source of fire. With all improved cartridge-operated fire extinguishers (1) directed at the source of fire, the fire would be contained.
  • the improved cartridge-operated fire extinguishers (1) to form a fire fighting system for a confined space in a sea going vessel or even in offices which do not have any fire system or in case of a failure of existing fire system.
  • FIG. 13 shows a second embodiment of the improved cartridge-operated fire extinguisher (1 ) wherein the cylinder of the improved cartridge-operated fire extinguisher (1 ) is modified to fit the form and shape of the replaceable inner container (19).
  • the cylinder of the improved cartridge- operated fire extinguisher (1 ) not only fits the replaceable inner container (19) but is modified to suit the replaceable inner container (19), having these inventive features:- a. a hole for filling of extinguishant by the powder manufacturer directly, ensuring quality control; b. a handle for the said replaceable inner container (19), enabling it to be easily handled. c. shaped to fit the chemical inlet; d.
  • the checking means which is the outlet valve cum inspectable gas tube (13) connected to the gas regulator (15) which allows for quick check of the contents of the said replaceable inner container (19); and shaped to fit puncture device to puncture said replaceable inner container (19) at the bottom of the improved cartridge-operated fire extinguisher (1 ) to allow chemical to rush into the discharge hose.
  • the essence of the second embodiment is still a replaceable inner container (19) pre-filled with extinguishant which is fitted into the hollow cylindrical body (6) of the improved cartridge-operated fire extinguisher (1 ).
  • the hollow cylindrical body (6) of the improved cartridge-operated fire extinguisher (1 ) consists of a first portion and a second portion, which is joined to each other at their flanges and tightened by securing means, in the form of one or more nuts and bolts (11 ).
  • the replaceable inner container (19) may be made of plastic or polyurethane or fabric or any material which is strong enough to contain up to 50 kilos of extinguishant and is not hygroscopic.
  • the improved cartridge-operated fire extinguisher (1 ) can overcome the deficiencies of conventional fire extinguishers:-

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)

Abstract

L'invention porte sur un extincteur amélioré actionné par cartouche (1) pesant de 4 kg à 50 kg et par multiple de 50 kilos, ayant une cartouche (5) contenant un agent propulsif. L'extincteur amélioré actionné par cartouche (1) est doté d'un contenant interne remplaçable (19) pré-rempli d'un agent extincteur. Il consiste en deux parties cylindriques creuses réunies de façon sécurisée. Lors de l'activation, l'agent propulsif est expulsé à travers une soupape, à travers une soupape de sortie-tube de gaz inspectable (13)-régulateur de gaz (15), dans l'agent extincteur. A la fois l'agent propulsif et l'agent extincteur sont éjectés à un débit constant à travers une sortie dans l'extincteur amélioré actionné par cartouche (1). L'extincteur amélioré actionné par cartouche (1) peut, après la décharge, être aisément ouvert pour la mise en place d'un nouveau contenant interne remplaçable (19) rempli d'agent extincteur. La soupape de sortie-tube de gaz inspectable (13) permet le contrôle sans outils spécialisés.
PCT/SG2010/000130 2010-03-31 2010-03-31 Extincteur actionné par cartouche Ceased WO2011123060A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/SG2010/000130 WO2011123060A1 (fr) 2010-03-31 2010-03-31 Extincteur actionné par cartouche

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SG2010/000130 WO2011123060A1 (fr) 2010-03-31 2010-03-31 Extincteur actionné par cartouche

Publications (1)

Publication Number Publication Date
WO2011123060A1 true WO2011123060A1 (fr) 2011-10-06

Family

ID=44712501

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SG2010/000130 Ceased WO2011123060A1 (fr) 2010-03-31 2010-03-31 Extincteur actionné par cartouche

Country Status (1)

Country Link
WO (1) WO2011123060A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102688575A (zh) * 2012-05-24 2012-09-26 中北大学 冷气溶胶灭火装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB911233A (en) * 1960-03-11 1962-11-21 John Kerr & Company Manchester Improvements in or relating to fire extinguishers
US3650329A (en) * 1969-08-20 1972-03-21 Centrale Sicli Sa Comp Refillable fire extinguisher
FR2502810A1 (fr) * 1981-03-27 1982-10-01 Sicli Appareil d'expulsion a debit controle d'un produit contenu dans un reservoir a pression auxiliaire, notamment pour extincteur
US5915480A (en) * 1996-09-20 1999-06-29 R-Amtech International, Inc. Fire extinguishing system
US6189624B1 (en) * 1997-09-09 2001-02-20 Ff Seeley Nominees Pty. Ltd. Actuating mechanism for fire extinguisher
US7318484B2 (en) * 2005-11-04 2008-01-15 Hector Rousseau Self servicing fire extinguisher with external operated internal mixing with wide mouth and external pressurized canister

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB911233A (en) * 1960-03-11 1962-11-21 John Kerr & Company Manchester Improvements in or relating to fire extinguishers
US3650329A (en) * 1969-08-20 1972-03-21 Centrale Sicli Sa Comp Refillable fire extinguisher
FR2502810A1 (fr) * 1981-03-27 1982-10-01 Sicli Appareil d'expulsion a debit controle d'un produit contenu dans un reservoir a pression auxiliaire, notamment pour extincteur
US5915480A (en) * 1996-09-20 1999-06-29 R-Amtech International, Inc. Fire extinguishing system
US6189624B1 (en) * 1997-09-09 2001-02-20 Ff Seeley Nominees Pty. Ltd. Actuating mechanism for fire extinguisher
US7318484B2 (en) * 2005-11-04 2008-01-15 Hector Rousseau Self servicing fire extinguisher with external operated internal mixing with wide mouth and external pressurized canister

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102688575A (zh) * 2012-05-24 2012-09-26 中北大学 冷气溶胶灭火装置

Similar Documents

Publication Publication Date Title
CA2640600C (fr) Recipient a fluide et procede pour charger un recipient a fluide
KR100948019B1 (ko) 넓은 입구 및 외부 가압용기를 갖는 외부 작동 내부 혼합식자가 서비스 소화기
US7318484B2 (en) Self servicing fire extinguisher with external operated internal mixing with wide mouth and external pressurized canister
US7793737B2 (en) Self servicing fire extinguisher with external operated internal mixing with wide mouth and external CO2 chamber
US3005495A (en) Hand fire extinguishers
US10350442B2 (en) Nozzle cap for fire extinguisher
US10159862B2 (en) Fire extinguisher with recessed gauge
WO2011123060A1 (fr) Extincteur actionné par cartouche
CN113648564B (zh) 灭火设备和车辆
CN213285459U (zh) 一种修井现场一键启动灭火装置
CN108057192A (zh) 无源式汽车火灾自动抑制方法及其装置
KR20100069338A (ko) 질소충진수단이 구비된 선박의 드라이 파우더 소화장치
JP2017086398A (ja) 移動式粉末消火設備
KR100313681B1 (ko) 이동식소화기 충전장치
KR200471633Y1 (ko) 교육용 소화기
CN106573159B (zh) 配有内部混合功能和储气瓶的灭火器
CN212817736U (zh) 一种便于安装的灭火设备容器阀
KR20050016813A (ko) 교재용 만능소화기
KR20060116278A (ko) 소화기
KR200421466Y1 (ko) 유조탱크의 소화용 소화 챔버 구조
CN223220866U (zh) 一种高强度直喷式二氧化碳阀门
NO168088B (no) Slukningsanlegg for et kombinert brannslukningskjoeretoey
RU199810U1 (ru) Кассета для транспортировки невзрывчатых компонентов эмульсионных взрывчатых веществ
CN210527382U (zh) 一种干粉料斗
CN211611397U (zh) 一种快速灭火的灭火器

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10849112

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205 DATED 25.01.2013)

122 Ep: pct application non-entry in european phase

Ref document number: 10849112

Country of ref document: EP

Kind code of ref document: A1