CN110721424B - Portable fire extinguisher - Google Patents
Portable fire extinguisher Download PDFInfo
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- CN110721424B CN110721424B CN201910833039.4A CN201910833039A CN110721424B CN 110721424 B CN110721424 B CN 110721424B CN 201910833039 A CN201910833039 A CN 201910833039A CN 110721424 B CN110721424 B CN 110721424B
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- fire extinguisher
- chamber
- gas cylinder
- cylinder
- pressurized gas
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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
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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
- A62C13/70—Portable extinguishers which are permanently pressurised or pressurised immediately before use with extinguishing material and pressure gas being stored in separate containers characterised by means for releasing the pressure gas
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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
- A62C13/003—Extinguishers with spraying and projection of extinguishing agents by pressurised gas
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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
- A62C13/006—Portable extinguishers which are permanently pressurised or pressurised immediately before use for the propulsion of extinguishing powder
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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
- A62C13/74—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 the pressure gas container being pierced or broken
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C13/00—Portable extinguishers which are permanently pressurised or pressurised immediately before use
- A62C13/76—Details or accessories
Abstract
The present invention discloses an improvement to a portable fire extinguisher. After improvement, personnel can carry out conventional simplified inspection and maintenance to the fire extinguisher through simple training, need not customized equipment. The improvement comprises: an anti-fusion device connected from the outside of the chamber for shaking, mixing or stirring the powder in the chamber to make it in a liquid state. Additional improvements include: a larger opening allows for more rapid filling and inspection of the powder in the cavity. Another improvement comprises: the carbon dioxide gas storage cylinder assembled outside the cavity is used, so that the carbon dioxide gas storage cylinder is maintained or replaced independently more easily, and meanwhile, the cavity is ensured to be in a non-pressurized state, and transportation as a non-dangerous article is allowed. The maintenance interval of the fire extinguisher can be prolonged on the premise of maintaining the fire extinguisher in a suitable state.
Description
The application is a divisional application, and the parent application is an invention patent application with the name of 'fire extinguisher with internal mixing function and gas storage cylinder', the application number is 201580033867.X, and the application date is 2015, 6 and 22.
CROSS-REFERENCE TO RELATED APPLICATIONS
Para 1 this application is a partial continuation of co-pending application No. 14/704,820 filed 5/2015 by the applicant, and application No. 14/704,820 is a partial continuation of application No. 14/313,761 filed 24/6/2014 by the applicant. The entire contents of both of the above applications are expressly incorporated by reference into this application.
Technical Field
Para 2 the present invention relates to an improvement of a portable fire extinguisher. More specifically, the fire extinguisher of the present invention utilizes a replaceable gas cylinder which provides propellant fuel to expel the fire suppressant from the fire extinguisher.
Background
Para 3 most portable fire extinguishers are of similar design: fire extinguishing powder is placed in the continuously pressurized cavity. Such extinguishers require regular maintenance by technicians trained and certified by the fire department of various states. The maintenance program includes: discharge, cleaning and refilling of the fire extinguisher. Without regular maintenance, the powder in the chamber may be compacted and/or the pressure in the chamber may leak, resulting in insufficient pressure to eject the powder out of the nozzle. If not properly maintained, the powder can become wet, causing clumping and clogging of the nozzle. This situation can result in the fire extinguishing powder not being sprayed out normally when needed.
Para 4 existing fire extinguishers are subject to wear due to the continuous pressing and removal operation. During maintenance, the fire extinguisher is sent to the recovery chamber and all parts must be disassembled and cleaned. Before the chamber can be re-pressurized, all pressure rings must be replaced, all components reassembled, and new powder injected into the chamber. The wear caused by maintenance services is generally more severe for existing fire extinguishers than for use.
Para 5 united states patent No. 6,189,624 issued to James (James) on 2/20 days 2001 and japanese patent No. JP 9,225,056 issued to Yamazaki Tomoki on 9/2 days 1997 disclose the following: the chamber of the fire extinguisher device does not need to be continuously pressurized and the pressurized container is an independent part in the chamber. Although the above-mentioned patent discloses a single pressurized container, the container is located at a location that is inconvenient to repair, maintain, replace, or inspect. This location design also minimizes the ability to determine the pressurization level of the pressurized container.
Para 6 united states patent No. 2,541,554 ("US '551") issued to c.h Smith (ch Smith) on day 13 of 1951 and No. 2,209,101 ("RU' 101") issued to glasvki g.d (Glavatski g.d.) et al on day 2 of 2002 disclose a fire extinguisher equipped with an external carbon dioxide cylinder. In the US' 554 case, the carbon dioxide cylinder is located at the top of the fire extinguisher chamber and is not integral with the fire extinguisher handle. In the RU' 101 case, the carbon dioxide cylinder is located outside the fire extinguisher and is connected to the fire extinguisher through a hose or tube. Although both of the aforementioned patents disclose a carbon dioxide cylinder disposed outside the chamber, the ability to easily check and replace the fire extinguisher is not achieved because neither cylinder is connected to the handle.
Para 7 united states patent No. 7,128,163 issued on 21.11.2006, united states patent No. 7,318,484 issued on 15.1.2008, and united states patent No. 7,793,737 issued on 14.9.2010, all issued to heckt rufus (Hector Rousseau). The fire extinguisher design disclosed in the above patent incorporates a gas cylinder and a shaking device within the handle. However, these patents all have similar features: the gas cylinder will discharge gas vertically upwards. When it is desired to remove gas from a bottle containing a compressed liquefied gas, such as carbon dioxide, the liquid in the bottle must evaporate to maintain the thermodynamic equilibrium within the bottle. Heat is required to cause vaporization, but if insufficient heat is available in the environment surrounding the cylinder, both the temperature and pressure of the compressed liquefied gas will drop. In the case of carbon dioxide, if the pressure drops below 75 psi, the liquefied carbon dioxide will solidify into dry ice. Since, in general, cylinder extinguishers are used immediately after the cylinder is pierced, any dry ice formed does not have time to absorb enough heat to change phase to gas, thereby failing to promote effective discharge of the extinguisher. This phenomenon is particularly noticeable in a low-temperature environment. According to the measured parameters, the mass loss of the carbon dioxide charge in the current commercial gas cylinder type fire extinguisher at the temperature of-40 ℃ is as high as 40 percent. However, although this portion of gas is not used in a typical discharge operation, the structural design of the fire extinguisher must also meet the full gas charge, which results in less choice of the ideal design. Furthermore, due to the unique properties of carbon dioxide, fire extinguishers cannot be configured with a tortuous path between the main chamber and the cylinder in order to minimize the risk of dry ice or frozen valves blocking the flow path in the event that the carbon dioxide expands causing a low temperature.
Para 8 due to the problem of the pressurization conditions present in pressurized extinguishers, the design of the powder-filled opening in the extinguisher to maintain the pressure in the chamber at all times is limited by structural requirements. The present application addresses this need by providing an external gas cylinder, which allows the chamber to be generally in an unpressurized state. Because the cavity is not pressed, the area of the top opening of the fire extinguisher can be enlarged, thereby being easier to fill powder into the fire extinguisher or check the powder quantity and condition in the cavity.
Para 9 the fire extinguisher currently in need should comply with the following description: equipped with a replaceable gas cylinder oriented to allow the propellant to be expelled only into the fire extinguisher cylinder, and a shaking device controlled to operate from outside the chamber equipped with an enlarged top opening for filling the fire extinguisher. The fire extinguisher in the present application provides a solution by the following design: the fire extinguisher is equipped with an external gas cylinder that exhausts downward, an external device that activates an internal shaking device, and a large opening. By discharging the compressed liquefied gas downwards, the liquid is discharged into the fire extinguisher, and as such, the cylinder does not need to absorb heat to drive the necessary evaporation to ensure that the temperature and pressure within the cylinder remain above the triple point, thus avoiding solidification of the propellant. In the case of compressed liquefied carbon dioxide, the design has been experimentally verified to achieve nearly 100% emission of carbon dioxide from the cylinder even when the fire extinguisher is pre-treated in an environment at-40 ℃.
Disclosure of Invention
Para 10 the object of the present fire extinguisher is to eliminate the need for warranty personnel to enter a safe area. The fire extinguisher has higher maintenance grade, and can carry out automatic self-repair or manual maintenance by all persons or terminal users. This eliminates the need for non-employee personnel to enter private corporate and government areas. The operation, maintenance, filling and loading of the fire extinguisher only need simple training and do not need customized equipment.
Para 11 for replacement of fire extinguishers in safe areas, the feature of no need for external service and maintenance is highly desirable. This will reduce or eliminate the possibility of terrorists using the fire extinguisher as a weapon, or using a false identity to impersonate the fire extinguisher maintainer into a secure area.
Para 12 the object of the present fire extinguisher is to provide a fire extinguisher equipped with an external gas cylinder. The inverted external cylinder design allows the liquid in the cylinder to drain directly into the fire extinguisher. Other applications use common gas cylinders (e.g. carbon dioxide or nitrogen) for the operation of the fire extinguisher. Because the gas storage bottle is arranged outside the cavity, the gas storage bottle is easy to replace, and the whole fire extinguisher does not need to be replaced. When the maintenance needs to be carried out on a large number of fire extinguishers at the same time, the mode brings huge convenience.
Para 13 another object of the present fire extinguisher is to provide an alternative, externally controllable operated jitter device. The size, configuration and necessity of the whipping device can be determined according to the size of the fire extinguisher. The shaking device, which can be operated from the outside control, promotes the "anti-fusion" of the powder inside the chamber, to keep it in a shaking, stirring or stirring condition, preventing the powder from caking, while keeping the extinguishing powder in a liquid state, to ensure that it can be properly sprayed onto the flames. The shaking process is accomplished by paddle-like device(s), chain bar(s), or other agitation device disposed within the chamber. The stirring device is connected by a connecting piece connected with the top, the bottom or the side of the cavity body, and can be operated manually or by some type of tool.
Para 14 this extinguisher has yet another object: a fire extinguisher is provided with an enlarged fill opening. The enlarged filling opening makes the filling and pouring operations of the cavity simpler and faster. The opening is easy to open, so that the condition of the powder in the cavity can be directly observed.
Para 15 this extinguisher has yet another object: a quick opening and closing top housing is provided so that a user can quickly open and fill the fire extinguisher. Furthermore, the firefighters can also be charged with the corresponding fire extinguishing materials according to the different types of flames.
Para 16 objects, features, aspects and advantages of the present invention will become more apparent from the following more detailed description of preferred embodiments of the invention, along with the accompanying drawings in which numerals represent parts of the drawings.
Brief description of the drawings
Para 17 figure 1 is a perspective view of a fire extinguisher.
Para 18 figure 2 is a cross-sectional view of a fire extinguisher.
Para 24 figure 8 is a graph of the amount of dry ice produced for different pressurized gas directions.
Para 25 figure 9 is a schematic view of a shaker apparatus and siphon.
Para 26 figure 10 is a detailed view of a plurality of siphon tube intake ports and shaking arms.
Best mode of operation of the invention
Para 27 figure 1 is a perspective view of the exterior of fire extinguisher 19. The extinguisher 19 is substantially cylindrical in shape, with a bottom housing 20 and a top housing 30. In the preferred embodiment, the bottom housing 20 and the top housing 30 are made of a lightweight, resilient material (e.g., plastic), but may be made of other materials such as steel, brass, copper, or aluminum. Bottom housing 20 may further be made of a transparent material to allow visual inspection of fire extinguisher 19. The top housing 30 is screwed to the bottom housing 20, but may be secured by a snap or latch arrangement. The bottom housing 20 has an enlarged opening to facilitate filling the bottom housing 20 with fire suppressant material. A wall hook assembly can be added to the top housing 30 of fire extinguisher 19 or wrapped around the body of bottom housing 20 or can be forked on the top housing 30 of fire extinguisher 19.
Para 28 with reference to fig. 1 and 2, a handle 40 allows a user to grasp fire extinguisher 19 by gripping grasping area 41. This allows extinguisher 19 to be in an upright orientation during transport or use. Fire extinguisher 19 may be in an upright orientation during storage and transportation, but the upright orientation is not critical to the storage and operation of fire extinguisher 19. A replaceable gas cylinder 50 is partially disposed within the handle 40 and the top housing 30 below the transparent portion 42 of the handle 40. By virtue of the design of the transparent portion 42, the pressurized gas cylinder 50 inside the extinguisher 19 can be checked. In the preferred embodiment, the pressurized gas cylinder 50 is partially disposed within the handle 40 and the top housing 30, although other locations are also contemplated.
Para 29 the replaceable pressurized gas cylinder 50 consists essentially of a cylinder containing compressed carbon dioxide, although cylinders containing other types of gases that inhibit the spread of fire may be used. Since the gas in the cylinder is under high pressure and may be in liquid form, a canister of propellant is required to expel the fire-extinguishing material 99 from the interior of the extinguisher 19. It is also envisioned that a large fire extinguisher may use multiple gas cylinders without departing from the inventive nature of the present design. Pressurized gas cylinders are available and the replacement or maintenance of the gas cylinders can be carried out separately without the need to maintain the entire fire extinguisher 19.
The handle 40 and transparent portion 42 protect the pressurized gas cylinder 50 if the fire extinguisher 19 is dropped or used violently. The trigger device 60 can activate the pressurized gas cylinder 50 to pressurize the chamber 22, push the fire-extinguishing material 99 through the hose 81 and eventually out the ejection port 90.
Para 31 fig. 2 is a cross-sectional view of fire extinguisher 19. The user may grasp handle 40 with either hand or glove through gripping area 41 to carry, transport, or use fire extinguisher 19. When the top housing 30 is detached from the bottom housing 20, the fire suppressant material 99 may be poured into the cavity 22 in the bottom housing 20 through an enlarged cylindrical opening 70. Over time, the fire extinguishing material 99 compacts against the bottom of the cavity 22. When the fire-extinguishing material 99 is compacted, the risk of improper discharge increases. Within the fire extinguisher 19, a plurality of shaking arms 120 are provided on the central rod 110. The shaker wheel 100 is controllably operable from the bottom of the extinguisher 19. The rotating shaker wheel 100 can shake loose the fire-extinguishing material 99, thereby minimizing the risk of fire extinguisher 19 failing to properly discharge the fire-extinguishing material 99. The principle of rotating the shaker wheel 100 to loosen the fire-extinguishing material 99 is similar to a food mixer.
Para 32 polycarbonate is a more cost effective alternative material for making the transparent bottom housing 20, however, when exposed to ammonia gas (the primary source of ABC dry powder fire suppressant), material degradation occurs, especially in high temperature environments, and therefore isolation or protection of the polycarbonate material is required to prevent direct exposure. When a polycarbonate material is used, the interior of the bottom housing 20 is preferably covered with a transparent protective coating 21 of silicone or similar material. The coating 21 can improve chemical and abrasion resistance while providing UV protection. The coating 21 can be applied in a variety of ways to isolate the polycarbonate from the monoammonium phosphate and any released ammonia gas. The coating 21 will provide the necessary chemical protection while the polycarbonate bottom housing 20 will provide the necessary strength and impact protection.
Para 33 in another contemplated embodiment, the bottom housing 20 is formed as a transparent cylinder of two separate cylinders, with the inner cylinder 21 inserted into the outer cylinder 23 of the bottom housing 20. The above assumption may be accomplished by the following steps: a transparent inner cylinder made of copolyester (tritan) material, acrylic material, styrene acrylonitrile (san) material, or similar other material is insert molded into the polycarbonate outer cylinder 23. Outer cylinder 23 may be made of a polycarbonate material to provide the required strength and impact protection during assembly, while inner cylinder 21 will provide the necessary chemical protection against monoammonium phosphate. In such a solution, the internal cylinder 21 is strong enough to ensure the safety of operation in case the external cylinder 23 of the bottom casing 20 is subjected to harsh environments or to great impact damages.
Para 34 in order to enable the fire-extinguishing material 99 to be discharged from the fire extinguisher 19, the user must pierce the pressurized gas cylinder 50. The pressurized gas cylinder 50 is threadably 52 secured, or otherwise secured, to the top housing of the fire extinguisher 19. Within the top housing 30, a replaceable pressurized gas cylinder 50 is located below the transparent portion 42 of the handle 40. The handle 40 and its transparent portion 42 protect the pressurized gas cylinder in the event that the fire extinguisher is dropped, and also allow the user to check whether the pressurized gas cylinder 50 is already installed in the fire extinguisher 19. The user lowers or rotates the trigger 60 to push the spike 62 into the pressurized gas cylinder 50 to pierce the pressurized gas cylinder 50. Fig. 6 and 7 illustrate details of the trigger device 60 and lancet 62. When the pressurized gas cylinder 50 is pierced, gas and/or liquid is forced into the cavity 22.
Para 35 when the liquefied gas is discharged from the pressurized gas cylinder 50, the liquid in the cylinder inevitably evaporates to maintain the thermodynamic equilibrium in the pressurized gas cylinder 50. To maintain thermodynamic equilibrium, heat is required to drive evaporation. If insufficient heat is available in the environment surrounding the cylinder, both the temperature and pressure of the compressed liquefied gas will drop. In the case of liquefied carbon dioxide, if the pressure drops below 75 psi, the liquefied carbon dioxide will freeze to dry ice. If dry ice forms, it will not have time to absorb sufficient heat from the surrounding environment to phase change to a gas, thereby failing to promote efficient evacuation of fire extinguisher 19.
Para 36 in a low temperature environment, the formation of dry ice is further exacerbated. Some testing agencies, including the Underwriters Laboratories (UL), Canadian Standards Association (CSA), require that fire extinguishers be used in environments below-40 ℃ (-40F). If the pressurized cylinder containing the carbon dioxide is placed vertically with the vent port facing upward (i.e., threads 52 facing upward), tests have shown that up to 40% of the carbon dioxide (by mass) remains as dry ice after the fire extinguisher discharge is complete. If the pressurized cylinder containing carbon dioxide is placed vertically with the exhaust port facing downward (i.e., with the threads 52 facing downward), the cylinder need not absorb heat to drive the liquefied carbon dioxide in the pressurized cylinder 50 to vaporize to ensure that the temperature and pressure in the cylinder remain above the triple point to absorb heat, thereby avoiding the formation of dry ice in the pressurized cylinder 50. Experiments have demonstrated that the discharge rate of the fire extinguisher from the cylinder can be nearly 100% even when the fire extinguisher is placed in an environment at-40 ℃ (-40 DEG F). Once the carbon dioxide enters the chamber 22, sufficient heat and relatively large surface area can rapidly convert the liquid carbon dioxide to a gaseous form.
Para 37 the mixture of fire suppressant material 99 and gas is pushed via the central rod 110, the flow channel 80 to the top housing 30, where it is pushed via the hose 81 to the manually operated valve 95 and finally ejected from the ejection outlet 90. The central rod 110 has an integral siphon tube 112 therein, and the fire suppressant material 99 is pushed through the integral siphon tube 112 through a plurality of holes in the bottom of the central rod 110. The nozzle 96 has a valve 95 therein, and the opening and closing of the valve 95 is controlled by a lever 94. The lever 94 holds the valve 95 closed by a spring 93. The user can open the valve 95 by pressing the control valve pull rod 92 against the pressure of the spring 93. The spray nozzle 96 can be operated by either hand with one hand. This is shown and described in detail in figure 3.
Para 38 figure 3 is a detailed view of the spray nozzle 96. This view shows the handle 40 and a portion of the gripping area 41. In the top housing 30, a flow passage 80 passes from the extinguisher 19 into the top housing 30. When valve 95 is in the closed position, extinguisher 19 may remain pressurized after pressurized gas cylinder 50 is punctured. In this "armed" state, all pressure within extinguisher 19 and fire suppressant material 99 is controlled by valve 95. The spray nozzle 96 has a valve 95 therein, and the valve 95 is connected to the operating lever 94. By pulling the operating rod 94 back, the extinguishing material can flow through the hose 81 to the ejection opening 90.
Para 39 a user may grasp spray nozzle 96 of fire extinguisher 19 with one hand and simultaneously operate pull rod 92 with the same hand. The user may then direct the spray nozzle 96 toward the flame. When the pull rod 92 is pressed, the pull rod presses the spring 93, and the operating rod 94 is slid to open the valve 95. When the valve 95 is opened, the fire extinguishing material 99 is ejected through the ejection port 90. When the pull rod 92 is released, the spring 93 will close, closing the valve 95 to prevent further injection of the fire suppressant material 99. At this point, pressure will be present in the cavity 22 of the extinguisher 19.
Para 43 as shown in fig. 5C, the user can pull or push the trigger 60 down in a direction 69 to a lower position 67 (shown in phantom). When the trigger 60 is rotated from the upper position to the lower position 67, the spike 62 is pushed in, piercing the pressurized gas cylinder 50. The trigger device 60 may be operated by either hand.
Para 44 fig. 6 shows a detail of the puncturing device for a pressurized gas cylinder 50. The pressurized gas cylinder 50 is secured in a retainer 56 within the top housing 30 with threads 52. The pressurized gas cylinder 50 and the threaded retainer 56 remain stationary while the bottom of the pressurized gas cylinder 50 is pierced. For visual effect, a set of fasteners and spare parts are omitted from the figure. The trigger 60 rotates about the axis 58, which improves the mechanical efficiency of piercing the end of the pressurized gas cylinder 50. The movable end of the trigger 60 is connected to the lift pin 53 and the return spring 54 to maintain the trigger 60 in a normal position, i.e., the spike 62 does not contact the bottom of the pressurized gas cylinder 50. The lift pins 53 (only one shown) are connected together for rotation to raise the lift plate 55 in parallel to raise the lancet needle 62 in a linear motion.
Para 46 fire extinguishers typically require approval by regulatory agencies such as Underwriters Laboratories, UL. The housings of most fire extinguishers are pressurized. The fire extinguisher disclosed in the present invention uses a separate pressurized gas cylinder 50 which contains liquid gas which must be vented from the gas cylinder 50 into the bottom housing 20.
Para 47 for cylinder extinguishers, a 5 second wait is required after the cylinder is pierced to build up pressure before the fire suppressant is sprayed. The injection time of the fire extinguisher should be not less than 8 seconds, or not less than the minimum time specified in "fire extinguisher rating and fire test standards".
Para 51 the test environment for the above results is: the pressurized liquid carbon dioxide cylinders are vented in different directions at 70 DEG F or-40 DEG F. The amount of dry ice remaining in the cylinder was measured 30 seconds after cylinder puncture.
Industrial applicability
Claims (8)
1. A portable fire extinguisher comprising a chamber (22), said chamber (22) being configured to be filled with a fire extinguishing material (99) and pressurized by gas from a pressurized gas cylinder (50), said portable fire extinguisher further comprising a flow channel (80) for releasing said fire extinguishing material (99) from said chamber (22), said portable fire extinguisher comprising:
an integral siphon (112) having a first tube end connected to the flow channel (80) and a second tube end disposed within the chamber (22);
a shaker arm (120) disposed in the chamber (22) and configured to agitate the fire-extinguishing material (99) in the chamber (22) as the integral siphon tube (112) rotates, wherein the shaker arm (120) includes a first end connected to the integral siphon tube (112), and wherein the shaker arm (120) extends radially from the integral siphon tube (112) to an opposing second end within the chamber (22); and
a support triangle (116) connected to the integral siphon tube (112) and the oscillating arm (120), wherein the support triangle (116) extends radially from the integral siphon tube (112) within the chamber (22) and supports at least a portion of the oscillating arm (120); the support triangle (116) comprises an aperture (117), the aperture (117) being configured such that when the integral siphon (112) rotates, a portion of the fire suppressing material (99) passes through the aperture (117);
wherein the dither arm (120) includes a top surface and a bottom surface, the bottom surface having an area greater than an area of the top surface such that the dither arm (120) has a tapered cross-section; the shaking arm (120) is of a top structure; the shaking arms (120) are staggered on the integral siphon (112).
2. The portable fire extinguisher as claimed in claim 1, wherein the supporting triangle (116) is a triangular structure including:
a first portion extending along the integral siphon tube (112);
a second portion extending from a first side of the first portion to a distal end of a triangle, wherein the second portion is connected to the dither arm (120) along a length of the dither arm (120); and
a third portion extending from a second side of the first portion to the distal end of the triangle;
wherein the aperture (117) is defined within the first, second and third portions of the support triangle (116).
3. The portable fire extinguisher as claimed in claim 1, wherein the second tube end is connected to an air intake hole (114), the air intake hole (114) being configured to receive the fire extinguishing material (99) from the chamber (22).
4. The portable fire extinguisher as claimed in claim 3, wherein said air intake hole (114) comprises a plurality of different holes distributed radially along said integral siphon tube (112).
5. The portable fire extinguisher as claimed in claim 1, wherein the shaking arm (120) is configured to withstand pressure waves caused by the sudden release of the fire extinguishing material (99) from the pressurized gas cylinder (50) into the chamber (22).
6. The portable fire extinguisher as claimed in claim 1, wherein the integral siphon tube (112) includes an inlet at a first end of the integral siphon tube (112) and an outlet at an opposite second end of the integral siphon tube, wherein the inlet is configured to receive the fire extinguishing material (99) from the chamber (22), and the outlet is configured to provide the fire extinguishing material (99) to the flow channel (80).
7. The portable fire extinguisher as claimed in claim 1, further comprising a retainer (56) for the pressurized gas cylinder (50), the retainer (56) being configured to retain the pressurized gas cylinder (50) in an inverted position such that gas is expelled from the pressurized gas cylinder (50) towards the bottom surface of the chamber (22).
8. The portable fire extinguisher as claimed in claim 1, further comprising a spike (62), said spike (62) being configured to pierce said pressurized gas cylinder (50) and release liquefied gas from said pressurized gas cylinder (50) into said chamber (22).
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/313,761 US10350443B2 (en) | 2005-11-04 | 2014-06-24 | Fire extinguisher with internal mixing and external gas cartridge |
US14/313,761 | 2014-06-24 | ||
US14/704,820 US9993673B2 (en) | 2014-06-24 | 2015-05-05 | Fire extinguisher with internal mixing and gas cartridge |
US14/704,820 | 2015-05-05 | ||
CN201580033867.XA CN106573159B (en) | 2014-06-24 | 2015-06-22 | Fire extinguisher with internal mixing function and gas storage cylinder |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201580033867.XA Division CN106573159B (en) | 2014-06-24 | 2015-06-22 | Fire extinguisher with internal mixing function and gas storage cylinder |
Publications (2)
Publication Number | Publication Date |
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CN110721424A CN110721424A (en) | 2020-01-24 |
CN110721424B true CN110721424B (en) | 2021-09-17 |
Family
ID=57681840
Family Applications (4)
Application Number | Title | Priority Date | Filing Date |
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CN201580033867.XA Active CN106573159B (en) | 2014-06-24 | 2015-06-22 | Fire extinguisher with internal mixing function and gas storage cylinder |
CN201910833039.4A Active CN110721424B (en) | 2014-06-24 | 2015-06-22 | Portable fire extinguisher |
CN201910851745.1A Active CN110559581B (en) | 2014-06-24 | 2015-06-22 | Piercing device for portable fire extinguisher and method for starting portable fire extinguisher |
CN201910851763.XA Active CN110613906B (en) | 2014-06-24 | 2015-06-22 | Portable fire extinguisher |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
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CN201580033867.XA Active CN106573159B (en) | 2014-06-24 | 2015-06-22 | Fire extinguisher with internal mixing function and gas storage cylinder |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
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CN201910851745.1A Active CN110559581B (en) | 2014-06-24 | 2015-06-22 | Piercing device for portable fire extinguisher and method for starting portable fire extinguisher |
CN201910851763.XA Active CN110613906B (en) | 2014-06-24 | 2015-06-22 | Portable fire extinguisher |
Country Status (22)
Country | Link |
---|---|
JP (4) | JP6730269B2 (en) |
KR (4) | KR102465810B1 (en) |
CN (4) | CN106573159B (en) |
AU (3) | AU2015280284B9 (en) |
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WO2019010653A1 (en) * | 2017-07-12 | 2019-01-17 | 顾建磊 | Novel fire fighting apparatus |
CN113509664A (en) * | 2020-07-29 | 2021-10-19 | 马鑫 | Fire extinguisher for fire fighting |
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