AU2020452200B2 - Temperature-sensing self-starting gas source device - Google Patents
Temperature-sensing self-starting gas source device Download PDFInfo
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- AU2020452200B2 AU2020452200B2 AU2020452200A AU2020452200A AU2020452200B2 AU 2020452200 B2 AU2020452200 B2 AU 2020452200B2 AU 2020452200 A AU2020452200 A AU 2020452200A AU 2020452200 A AU2020452200 A AU 2020452200A AU 2020452200 B2 AU2020452200 B2 AU 2020452200B2
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- temperature sensing
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- glass bulb
- spring
- vertical bar
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/08—Control of fire-fighting equipment comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers
- A62C37/10—Releasing means, e.g. electrically released
- A62C37/11—Releasing means, e.g. electrically released heat-sensitive
- A62C37/14—Releasing means, e.g. electrically released heat-sensitive with frangible vessels
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C5/00—Making of fire-extinguishing materials immediately before use
- A62C5/006—Extinguishants produced by combustion
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- 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)
- Fire-Detection Mechanisms (AREA)
- Thermally Actuated Switches (AREA)
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
A temperature-sensing self-starting gas source device, comprising a composite solid propellant (11), a needle puncture percussion cap (12), a firing pin (13), springs (14), a linkage mechanism (15) and a fire-fighting temperature-sensing glass bulb (16); the composite solid propellant is encapsulated in a housing, the composite solid propellant at the bottom of the housing is connected to the needle puncture percussion cap, and an opening is provided at the top of the housing and is used for the escape of gas generated when the composite solid propellant is decomposed; the firing pin is provided at the bottom end of the needle puncture percussion cap and is at a predetermined distance from the bottom end of the needle puncture percussion cap, and the firing pin strikes the needle puncture percussion cap by means of a stroke movement so that the needle puncture percussion cap ignites the composite solid propellant; the linkage mechanism is connected to the firing pin, the fire-fighting temperature-sensing glass bulb and the springs; the linkage mechanism enables the springs to form a compression force in the direction of connection with the fire-fighting temperature-sensing glass bulb; and when the fire-fighting temperature-sensing glass bulb senses a temperature and breaks, the spring tension is released, and the linkage mechanism drives the movement of the firing pin to generate a force for striking the needle puncture percussion cap.
Description
TECHNICAL FIELD The invention belongs to the technical field of fire protection, and in particular relates to an apparatus for self-starting a gas source by temperature sensing.
BACKGROUND At the present time, all the automatic fire protection apparatuses on the market use the apparatus for self-starting a gas source by temperature sensing as propulsion source, which mainly relies on the sensing and detection of electronic components and a pressure-storing gas source to provide propulsion. The application of such apparatus for self-starting a gas source by temperature sensing in the field of fire protection has been relatively well-developed, and it is simple as well as easy-to-use, and has a large market share. However, there are several obvious drawbacks: Firstly, the temperature sensing element and the smoke sensing element are both electronic components, which are prone to false alarms and failures as a result of the relatively large instability of their detection sensitivity; secondly, it is required to conduct electrical signals in a charged environment, as a result, in case of a complex environment, the conduction reliability may be very poor, hence detection and early warning are adversely affected; thirdly, the pressure-storing gas source is always under pressure in standby mode, which involves certain security risks.
SUMMARY OF THE INVENTION The purpose of the present invention is to provide an apparatus for self-starting a gas source by temperature sensing in view of the technical deficiencies in the prior art, which uses a composite solid propellant as a reserve gas source, and a temperature sensing glass bulb for fire protection as an element for measuring ambient temperature, wherein by means of a trigger device for ignition used for connecting the composite solid propellant and the glass bulb, upon the burst of the temperature sensing glass bulb for fire protection due to heating, the trigger device for ignition is driven to act, so as to ignite the composite solid propellant, generate gas, and create a gas source for driving the fire extinguishing agent. The technical solution of the present invention is to provide an apparatus for self-starting a gas source by temperature sensing, which comprises a composite solid propellant, a trigger device for ignition and a temperature sensing glass bulb for fire protection; the composite solid propellant is encapsulated in a first housing, and the composite solid propellant at the bottom of the first housing is connected to the trigger device for ignition, so that the trigger device for ignition triggers the ignition of the composite solid propellant, and an opening at the top of the first housing is provided for the escape of the gas generated on an ignition of the composite solid propellant; the trigger device for ignition is connected to the temperature sensing glass bulb for fire protection, so that the ignition of the composite solid propellant is triggered upon the burst of the temperature sensing glass bulb for fire protection due to heating. The composite solid propellant is loaded in the first housing, and is connected with the trigger device for ignition at the bottom of the first housing to be ignited by the trigger device for ignition, and meanwhile, the trigger device for ignition is connected with the temperature sensing glass bulb for fire protection, and the temperature sensing glass bulb for fire protection bursts once the activation temperature is reached, creating a driving force for the trigger device for ignition to ignite the composite solid propellant in the first housing. It can be seen that the principle and structure of the present invention are simple, there is no additional power supply device and electronic cabling, and the temperature sensing glass bulb for fire protection is used as the temperature detector and driver for driving the trigger device for ignition to ignite the composite solid propellant, so as to create a propulsion from gas source, hence, the present invention may be used for fire detection in the field of fire protection, driving of stored fire extinguishing agent, and driving of pneumatically triggered fire extinguishing agent. Furthermore, the trigger device for ignition described above comprises a stab primer, a firing pin, a spring and a coupling mechanism; the stab primer is positioned at the bottom of the first housing to ignite the composite solid propellant in the first housing upon a hit by the firing pin; the firing pin is positioned at the bottom end of the stab primer and is located at a predetermined distance from the bottom end of the stab primer, and the firing pin hits against the stab primer through a stroke movement, causing the stab primer to generate flames; the coupling mechanism connects the firing pin, the temperature sensing glass bulb for fire protection and the spring with each other, and the coupling mechanism causes, in the direction of connection with the temperature sensing glass bulb for fire protection, the spring to create a compressive force, and thus, upon the burst of the temperature sensing glass bulb for fire protection due to heating, the spring pressure is released, the coupling mechanism is thus driven to move, so that the coupling mechanism drives the firing pin connected to it to move, exerting a hit force on the stab primer. The stab primer is activated under a certain kinetic energy impact to generate flames that may ignite the composite solid propellant, therefore, the stab primer connected to the composite solid propellant is positioned at the bottom of the first housing, and the firing pin is then placed at a certain distance from the stab primer, so that the firing pin moves, if an activation is required, to hit against the stab primer, whereas the coupling structure connects the firing pin, the spring and the temperature sensing glass bulb for fire protection with each other to form a coupling mechanism for triggering, and the connections of the coupling mechanism with the spring and the temperature sensing glass bulb for fire protection in the same direction bring the spring into a compressed state, as a result, the pressure in the spring is released upon the burst of the temperature sensing glass bulb for fire protection, creating a force to drive the coupling mechanism to move, and as the firing pin is connected to the coupling mechanism as well, the movement of coupling mechanism results in a synchronous movement of the stab primer, thereby exerting a hit force on the stab primer, and the configuration is the mechanical principle and preliminary implementation of the structure of the trigger device for ignition described above. Moreover,, the apparatus of the present invention further comprises a second housing and an end cap; the coupling mechanism is a cross-shaped connecting structure formed by a cross bar and a vertical bar; the firing pin comprises a top end and a connecting base, and the top end located in proximity to the stab primer; one end of the cross bar passes perpendicularly through the connecting base of the firing pin and is fixed to it, and the other end passes perpendicularly through the center of the vertical bar and is fixedly connected to the vertical bar to form a connecting portion; the second housing is configured to connect the vertical bar of the coupling mechanism, the spring and the temperature sensing glass bulb for fire protection in a same direction parallel to the direction of the firing pin; one end of the vertical bar pointing in the same direction as the firing pin is connected to the temperature sensing glass bulb for fire protection, and the other end of the temperature sensing glass bulb for fire protection is fixed to the second housing; the spring is sleeved on the other end of the vertical bar, and the other end of the second housing has a through hole, to which the end cap is connected and fixed from the outside of the second housing for attaching the spring to the vertical bar between the second housing and the connecting portion; once the vertical bar of the coupling mechanism, the spring and the temperature sensing glass bulb for fire protection are mounted in the second housing, the two ends of the second housing are connected to the temperature sensing glass bulb for fire protection and the end cap, respectively, and the spring is in a compressed state; the height, by which the spring is compressed, is larger than the predetermined distance between the firing pin and the bottom end of the stab primer. It can be seen that the coupling mechanism in this solution is further optimized and a cross-connected coupling mechanism is devised, the vertical bar is provided for implementation of the sleeving of the spring and the connection with the temperature sensing glass bulb for fire protection in the same direction as described above, and the cross bar is for connecting with the firing pin and thus ensures the synchronous movement of the stab primer and the vertical bar. The nature of the configuration according to the present invention is that the end of the vertical bar, on which the spring is sleeved, is not fixedly connected and may move in relation to the spring, and once the temperature sensing glass bulb for fire protection is mounted in place, the spring is disposed between the cross-shaped portion of the coupling mechanism and the end cap in a compressed state, and thus, once the temperature sensing glass bulb for fire protection is broken, one end of the spring at the end cap cannot, by reason of the fixation of the end cap with respect to the second housing, release the compressive force, and the compressive force may be released only by the movement of that end of the spring towards to the cross-connected portion, that is to say, the spring exerts a thrust force on the cross-shaped connection between the cross bar and the vertical bar, which pushes the cross-structured coupling mechanism to move towards to the position where the temperature sensing glass bulb for fire protection locates, and the movement distance and precision coefficient of the spring are sufficient for the ignition of the stab primer upon a hit by the firing pin that moves synchronously with the coupling mechanism. Moreover, the spring constant of the above-described spring described above is 2-15N/mm, and the height, by which the spring is compressed, is 5-20mm. The compressed height along with the precision coefficient of the spring is sufficient to create the hit force that ignites the stab primer. Furthermore, the nominal activation temperature of the above-described temperature sensing glass bulb for fire protection described above is any one of 93 0C, 141 0 C or 1820 C. Furthermore, the composite solid propellant described above comprises an adhesive, a curing agent, an oxidizing agent and a cooling agent; the adhesive comprises a hydroxyl-terminated polybutadiene and/or a carboxyl-terminated polybutadiene, and its content is 10%-40% by mass; the curing agent is a toluene diisocyanate and/or an isophorone diisocyanate, and its content is 0.5%-5% by mass; the oxidizing agent is an ammonium perchlorate and/or an ammonium nitrate, and its content is 20%-60% by mass; the cooling agent is an azodicarbonamide, and its content is 20%-60% by mass. Moreover, a hole corresponding to the position of the stab primer is provided at the bottom of the housing encapsulating the composite solid propellant, so that the flames generated on a hit against the stab primer come into direct contact with the composite solid propellant and thus it is ignited. Besides, the end cap described above is in the form of a hollow tube, the outer side is threaded, the inner diameter of the hollow tube is larger than or equal to the outer diameter of the vertical bar, and the threaded outer side and the inner wall of the through hole of the second housing fit together to be fixed in relation to each other, hence the hollow tube facilitates the movement of the vertical bar in it, so that the spring could be compressed or released. The length of the vertical bar in the spring is long enough, and it may even extend out of the second housing through the hollow tube in the center of the end cap, and the first reason for this implementation is that: the spring may be supported by the vertical bar in its interior during compression or pressure release, hence the spring always moves in a straight line with the shaft of the vertical bar as the center, so that the deviation of the compression force is avoided, which would result in the deflection of the movement directions of the coupling mechanism as well as the firing pin driven by the coupling mechanism, which would, in turn, lead to an ineffective ignition of the stab primer; the second reason is that: a through hole for inserting a pin may be provided at the end of the vertical bar as needed, so that the end of the vertical bar is fixed, in the process of transportation and assembly, etc., outside the end cap by penetrating the pin, so as to avoid a hit of the firing pin caused by the movement of the coupling mechanism as a result of an accidental breakage of the temperature sensing glass bulb for fire protection. Besides, the connection type for the cross bar and the vertical bar described above comprises one of threaded connection, welding or bonding. The synchronous movement of the fixed connection between the cross bar and the vertical bar is the key point to ensure the synchronous movement of the firing pin and the coupling mechanism, and the connection type is a connection type in the prior art. Besides, the apparatus of the present invention further comprises a pin, and the end of the vertical bar of the coupling mechanism is provided with a through hole perpendicular to the axial direction of the vertical bar, so that the pin and the through hole fit together to form a fixed connection of the vertical bar in relation to the end cap. This implementation is intended to attain the goal described above: in the process of transportation and assembly, etc., the end of the vertical bar is fixed outside the end cap by inserting a pin, so as to avoid a hit of the firing pin caused by the movement of the coupling mechanism as a result of an accidental breakage of the temperature sensing glass bulb for fire protection. The present invention has the following advantageous effects with reference to the prior art: (1) The principle of the apparatus of the present invention is simple, that is, the temperature change at the scene of a fire is detected by the temperature sensing glass bulb, and once its activation temperature is reached, the ignition of solid composite propellant is triggered to generate gas, so as to carry out fire detection and drive the fire extinguishing medium; (2) The apparatus of the present invention has a compact structure and detects the ambient temperature by using the temperature sensing glass bulb for fire protection, and once its threshold temperature is reached, the burst of the temperature sensing glass bulb for fire protection starts, and after the occurrence of the burst, the trigger device for ignition connected to it moves with it, thereby triggering the ignition of the composite solid propellant; (3) The apparatus of the present invention is characterized by an adaptability to a wide range of ambient temperatures, in other words, it has the property that a wide storage temperature range for the temperature sensing glass bulb for fire protection is possible in an environment where no fire occurs, that is, the ambient temperatures may range from -60 °C to a threshold temperature, whereas most of the existing temperature sensing devices fail at a low temperature of -30°C. (4) The apparatus of the present invention is characterized by a sensitive and fast response, in other words, the coupling mechanism is activated the moment the glass bulb bursts due to heating, and then the stab primer is ignited, in consequence, the solid propellant is ignited and a high-pressure gas is generated, and since the components are mechanically connected and coupled with each other, these components of the apparatus move synchronously upon the burst of the glass bulb due to heating, and therefore the detection is performed regardless of the power supply and the driving force from the gas source may be output, as a consequence, the problems of error or failure and danger caused by the application of electronic sensing or electronic driving in the prior art do not exist. (5) The apparatus of the present invention is characterized by a high reliability, that is, the temperature sensing glass bulb for fire protection bursts only upon the condition that its activation temperature is reached, triggering the action of other related apparatuses and igniting the solid composite propellant. The apparatus of the present invention is characterized by its simple principle, compact structure, adaptability to a wide range of ambient temperatures, sensitive response and high reliability, and may be in widespread use for fire detection and driving fire extinguishing agent of fire extinguishing system in the field of fire protection technology.
The apparatus of the present invention uses the temperature sensing glass bulb for fire protections for fire temperature detection, and provides a composite solid propellant as a gas propulsion source stored at atmospheric pressure, once the ambient temperature of the temperature sensing glass bulb for fire protection reaches the threshold temperature, the glass bulb bursts and the stab primer is activated by the coupling mechanism to ignite the composite solid propellant, thereby generating high-pressure gas as the driving force from gas source. The apparatus of the present invention is characterized by its high stability as well as a wide range of applications and is used for fire detection and for driving the fire extinguishing agent of fire extinguishing systems in the field of fire protection technology.
DESCRIPTION OF THE DRAWINGS These and/or other aspects and advantages of the present invention will become clearer and be more readily understood from the following detailed description of embodiments of the present invention with reference to the accompanying drawings, wherein: Fig. 1 is a schematic diagram showing the structural composition of an apparatus for self-starting a gas source by temperature sensing in an embodiment of the present invention; FIG. 2 is a schematic overall exterior view of the apparatus for self-starting a gas source by temperature sensing with all components encapsulated therein in an embodiment of the present invention; and FIG. 3 is a working flow chart of the apparatus for self-starting a gas source by temperature sensing in an embodiment of the present invention.
DETAILED DESCRIPTION In order to provide a better understanding of the present invention for those skilled in the art, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. Embodiment 1 An apparatus for self-starting a gas source by temperature sensing, the structure of which is shown in FIG. 1, comprises a composite solid propellant 11, a stab primer 12, a firing pin 13, a spring 14, a coupling mechanism 15 and a temperature sensing glass bulb for fire protection 16; the composite solid propellant 11 is encapsulated in the first housing, the composite solid propellant 11 is disposed at the bottom of the first housing, and an opening at the top of the first housing is provided for the escape of the gas generated on an ignition of the composite solid propellant 11; the stab primer 12 is disposed at the bottom of the first housing and is in contact with the composite solid propellant 11, preferably, a hole corresponding to the position of the stab primer 12 is provided at the bottom of the housing encapsulating the composite solid propellant 11, so that the flames generated on a hit against the stab primer 12 come into direct contact with the composite solid propellant 11 in the first housing to be ignited, and the composite solid propellant 11 is ignited upon a hit by the firing pin 13; the firing pin 13 is positioned at the bottom end of the stab primer 12 and is located at a predetermined distance from the bottom end of the stab primer 12, and the firing pin 13 hits against the stab primer 12 through a stroke movement, causing the stab primer 12 to generate flames; the coupling mechanism 15 connects the firing pin 13, the temperature sensing glass bulb for fire protection 16 and the spring 14 with each other, and the coupling mechanism 15 causes, in the direction of connection with the temperature sensing glass bulb for fire protection 16, the spring 14 to create a compressive force, and thus, upon the burst of the temperature sensing glass bulb for fire protection 16 due to heating, the pressure in the spring 14 is released, the coupling mechanism 15 is driven to move, so that the coupling mechanism 15 drives the firing pin 13 connected to it to move, exerting a hit force on the stab primer 12. For the purpose of better functioning of the apparatus, the coupling mechanism 15 and other configurations and the connection relationship between the components of the present invention are preferably devised and disposed as follows: the apparatus in this embodiment further comprises a second housing and an end cap 17; the coupling mechanism 15 is a cross-shaped connecting structure formed by a cross bar 151 and a vertical bar 152; the firing pin 13 comprises a top end and a connecting base, and the top end located in proximity to the stab primer 12; one end of the cross bar 151 passes perpendicularly through the connecting base of the firing pin 13 and is fixed to it, and the other end passes perpendicularly through the center of the vertical bar and is fixedly connected to the vertical bar 152 to form a connecting portion 153; the second housing is configured to connect the vertical bar 152 of the coupling mechanism 15, the spring 14 and the temperature sensing glass bulb for fire protection 16 in a same direction parallel to the direction of the firing pin 13; one end of the vertical bar 152 pointing in the same direction as the firing pin 13 is connected to the temperature sensing glass bulb for fire protection 16, and the other end of the temperature sensing glass bulb for fire protection 16 is fixed to the second housing; the spring 14 is sleeved on the other end of the vertical bar 152, and the other end of the second housing has a through hole, to which the end cap 17 is connected and fixed from the outside of the second housing for attaching the spring 14 to the vertical bar between the second housing and the connecting portion 153; once the vertical bar 152 of the coupling mechanism 15, the spring 14 and the temperature sensing glass bulb for fire protection 16 are mounted in the second housing, the two ends of the second housing are connected to the temperature sensing glass bulb for fire protection 16 and the end cap 17, respectively, and the spring 14 is in a compressed state; the height, by which the spring 14 is compressed, is larger than the predetermined distance between the firing pin 13 and the bottom end of the stab primer 12. In order to form an advisable compressive force and an impact force on the stab primer, the spring constant of the spring 14 is preferably 2-15N/mm, and the height, by which the spring is compressed, is 5-20mm; similarly, in order to improve reliability while reducing temperature sensing interference in the environment, the nominal activation temperature of the temperature sensing glass bulb for fire protection 16 is selected from any one of 93°C, 141C or 182 0 C. The composite solid propellant 11 loaded in the first housing comprises an adhesive, a curing agent, an oxidizing agent and a cooling agent: the adhesive comprises a hydroxyl-terminated polybutadiene and/or a carboxyl-terminated polybutadiene, and its content is 10%-40% by mass; the curing agent is a toluene diisocyanate and/or an isophorone diisocyanate, and its content is 0.5%-5% by mass; the oxidizing agent is an ammonium perchlorate and/or an ammonium nitrate, and its content is 20%-60% by mass; the cooling agent is an azodicarbonamide, and its content is 20%-60% by mass. Preferably, the outer side of the end cap 17 in the form of a hollow tube connected to one end of the vertical bar 152a is threaded, the inner diameter of the hollow tube is larger than or equal to the outer diameter of the vertical bar, so as to fix the vertical bar 152, and the outer threaded structure and the internal threads of the second housing fit together to compress the spring 14 within the housing. Preferably, the connection type for the cross bar 151 and the vertical bar 152 described above comprises one of threaded connection, welding or bonding.
In the context of using an international standard temperature sensing glass bulb with a nominal activation temperature of 141°C in an apparatus of this embodiment, the temperature sensing glass bulb is activated after being baked by fire to 141°C. The free stroke of the firing pin 13 of the apparatus is 9 mm, and the spring constant of the spring is 4.9 N/mm. The apparatus has a gas production rate of 500L/kg (excluding water vapor) at a room temperature of 20 0C, and the gas generated by the composite solid propellant of 4g is transmitted to a piston with a diameter of 25mm through a stainless steel pipe with a length of 10m and an inner diameter of 4mm, generating a thrust of about 90N.
The embodiments described above are only examples for the implementation of present invention and are not intended to be construed in a limiting sense, and any other forms are possible. Various embodiments of the present invention have been described above, and the foregoing descriptions are exemplary, non-exhaustive, and are not intended to limit the disclosed embodiments. Various modifications and changes will be apparent to those skilled in the art without departing from the scope and spirit of the illustrated embodiments. Therefore, the protection scope of the present invention is to be determined entirely by the protection scope of the claims.
Claims (4)
1. An apparatus for self-starting a gas source by temperature sensing,
characterized by comprising a composite solid propellant (11), a trigger device for
ignition and a temperature sensing glass bulb for fire protection (16);
the composite solid propellant (11) is encapsulated in a first housing, the
composite solid propellant (11) at the bottom of the first housing is connected to the
trigger device for ignition, so that the trigger device for ignition triggers the ignition
of the composite solid propellant, and an opening at the top of the first housing is
provided for the escape of the gas generated on an ignition of the composite solid
propellant (11);
the trigger device for ignition is connected to the temperature sensing glass bulb
for fire protection (16), so that the ignition of the composite solid propellant (11) is
triggered upon the burst of the temperature sensing glass bulb for fire protection (16)
due to heating;
the trigger device for ignition comprises a stab primer (12), a firing pin (13), a
spring (14) and a coupling mechanism (15);
the stab primer (12) is positioned at the bottom of the first housing to ignite the
composite solid propellant (11) in the first housing upon a hit by the firing pin (13);
the firing pin (13) is positioned at the bottom end of the stab primer (12) and is
located at a predetermined distance from the bottom end of the stab primer (12), and
the firing pin (13) hits against the stab primer (12) through a stroke movement,
causing the stab primer (12) to generate flames;
the coupling mechanism (15) connects the firing pin (13), the temperature
sensing glass bulb for fire protection (16) and the spring (14) with each other, and the
coupling mechanism (15) causes, in the direction of connection with the temperature
sensing glass bulb for fire protection (16), the spring (14) to create a compressive
force, and thus, upon the burst of the temperature sensing glass bulb for fire protection
(16) due to heating, the pressure in spring (14) is released, the coupling mechanism
(15) is driven to move, so that the coupling mechanism (15) drives the firing pin (13) connected to it to move, exerting a hit force on the stab primer (12) further comprising a second housing and an end cap (17); the coupling mechanism (15) is a cross-shaped connecting structure formed by a cross bar (151) and a vertical bar (152); the firing pin (13) comprises a top end and a connecting base, and the top end located in proximity to the stab primer (12); one end of the cross bar (151) passes perpendicularly through the connecting base of the firing pin (13), and the other end passes perpendicularly through the center of the vertical bar and is fixedly connected to the vertical bar (152) to form a connecting portion (153); the second housing is configured to connect the vertical bar (152) of the coupling mechanism (15), the spring (14) and the temperature sensing glass bulb for fire protection (16) in a same direction parallel to the direction of the firing pin (13); one end of the vertical bar (152) pointing in the same direction as the firing pin (13) is connected to the temperature sensing glass bulb for fire protection (16), and the other end of the temperature sensing glass bulb for fire protection (16) is fixed to the second housing; the spring (14) is sleeved on the other end of the vertical bar (152), and the other end of the second housing has a through hole, to which the end cap (17) is connected and fixed from the outside of the second housing for attaching the spring
(14) to the vertical bar between the second housing and the connecting portion (153);
once the vertical bar (152) of the coupling mechanism (15), the spring (14) and
the temperature sensing glass bulb for fire protection (16) are mounted in the second
housing, the two ends of the second housing are connected to the temperature sensing
glass bulb for fire protection (16) and the end cap (17), respectively, and the spring
(14) is in a compressed state; the height, by which the spring (14) is compressed, is
larger than the predetermined distance between the hit end of the firing pin (13) and
the hit end of the stab primer (12) ;
the composite solid propellant (11) comprises an adhesive, a curing agent, an
oxidizing agent and a cooling agent;
the adhesive comprises a hydroxyl-terminated polybutadiene and/or a carboxyl-terminated polybutadiene, and its content is 10%-40% by mass; the curing agent is a toluene diisocyanate and/or an isophorone diisocyanate, and its content is 0.5%-5% by mass; the oxidizing agent is an ammonium perchlorate and/or an ammonium nitrate, and its content is 20%-60% by mass; the cooling agent is an azodicarbonamide, and its content is 20%-60% by mass; a hole corresponding to the position of the stab primer (12) is provided at the bottom of the housing encapsulating the composite solid propellant (11), so that the flames generated on a hit against the stab primer (12) come into direct contact with the composite solid propellant (11) and thus it is ignited; the end cap (17) is a hollow tube with threads on the outside, and the inner diameter of the hollow tube is larger than or equal to the outer diameter of the vertical bar (152) of the coupling mechanism (15), and threaded outer side of the end cap and the inner wall of the through hole of the second housing fit together to be fixed in relation to each other, and the hollow tube facilitates the movement of the vertical bar
(152) in it, so that the spring (14) could be compressed or released;
it further comprises a pin, and the end of the vertical bar (152) of the coupling
mechanism (15) is provided with a through hole perpendicular to the axial direction of
the vertical bar, so that the pin and the through hole fit together to form a fixed
connection of the vertical bar (152) in relation to the end cap (17).
2. The apparatus for self-starting a gas source by temperature sensing according
to claim 1, characterized in that: the spring constant of the spring (14) is 2-15N/mm,
and the height, by which the spring is compressed, is 5-20mm.
3. The apparatus for self-starting a gas source by temperature sensing according
to claim 1, characterized in that: the nominal activation temperature of the
temperature sensing glass bulb for fire protection (16) is any one of 93°C, 141C or
182 0 C.
4. The apparatus for self-starting a gas source by temperature sensing according
to claim 1, characterized in that: the connection type for the cross bar (151) and the
vertical bar (152) comprises one of threaded connection, welding or bonding.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010523118.8A CN111632330B (en) | 2020-06-10 | 2020-06-10 | Temperature sensing self-starting air source device |
| CN202010523118.8 | 2020-06-10 | ||
| PCT/CN2020/120584 WO2021248760A1 (en) | 2020-06-10 | 2020-10-13 | Temperature-sensing self-starting gas source device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2020452200A1 AU2020452200A1 (en) | 2022-11-24 |
| AU2020452200B2 true AU2020452200B2 (en) | 2024-07-04 |
Family
ID=72322979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2020452200A Active AU2020452200B2 (en) | 2020-06-10 | 2020-10-13 | Temperature-sensing self-starting gas source device |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN111632330B (en) |
| AU (1) | AU2020452200B2 (en) |
| DE (1) | DE112020007311B4 (en) |
| WO (1) | WO2021248760A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111632327B (en) * | 2020-06-10 | 2022-04-15 | 湖北航天化学技术研究所 | Electroless non-pressure storage type fire extinguishing system |
| CN111632330B (en) * | 2020-06-10 | 2022-03-08 | 湖北航天化学技术研究所 | Temperature sensing self-starting air source device |
| CN114001595A (en) * | 2021-12-10 | 2022-02-01 | 山西江阳兴安民爆器材有限公司 | Fuming anti-infantry training mine |
| WO2025201549A1 (en) * | 2024-03-29 | 2025-10-02 | 上海永曜一合科技有限公司 | Fire extinguishing device |
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| US20040216903A1 (en) * | 2003-04-15 | 2004-11-04 | Wierenga Paul H. | Hermetically sealed gas propellant cartridge for fire extinguishers |
| US7389825B2 (en) * | 2006-04-10 | 2008-06-24 | Fireaway Llc | Aerosol fire-retarding delivery device |
| UA98024C2 (en) | 2007-12-07 | 2012-04-10 | ДИНАМИТ НОБЕЛЬ ДИФЕНС ГмбХ | Thermally initiated triggering of aerosol fire extinguisher and method for actuating generator of fire-extinguishing aerosol |
| CN201394304Y (en) * | 2009-05-15 | 2010-02-03 | 李建芳 | Linkage start device of suspension type superfine dry powder extinguishing device |
| CN201783118U (en) * | 2010-08-27 | 2011-04-06 | 山东环绿康新材料科技有限公司 | Explosion-proof ultra-fine-powder fire extinguishing plant |
| CN103768746B (en) * | 2012-10-26 | 2016-12-21 | 胡永华 | A kind of fire extinguishing excites starter |
| CN105315115A (en) * | 2015-04-15 | 2016-02-10 | 湖北三沃力源航天科技有限公司 | High-temperature-resistant type solid propellant with calcium carbonate as cooling agent and preparation method of high-temperature-resistant type solid propellant |
| DE202017105705U1 (en) * | 2017-09-20 | 2018-12-21 | Job Lizenz Gmbh & Co. Kg | sprinkler head |
| CN209714076U (en) * | 2019-03-08 | 2019-12-03 | 重庆图安消防设备有限公司 | Automatic fire extinguisher |
| CN110801594A (en) * | 2019-10-12 | 2020-02-18 | 湖北航天化学技术研究所 | Gas generator suitable for non-pressure storage type fire extinguisher and fire extinguisher adopting same |
| CN111632330B (en) * | 2020-06-10 | 2022-03-08 | 湖北航天化学技术研究所 | Temperature sensing self-starting air source device |
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2020
- 2020-06-10 CN CN202010523118.8A patent/CN111632330B/en active Active
- 2020-10-13 AU AU2020452200A patent/AU2020452200B2/en active Active
- 2020-10-13 DE DE112020007311.4T patent/DE112020007311B4/en active Active
- 2020-10-13 WO PCT/CN2020/120584 patent/WO2021248760A1/en not_active Ceased
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| CN111632330A (en) | 2020-09-08 |
| DE112020007311B4 (en) | 2026-02-12 |
| AU2020452200A1 (en) | 2022-11-24 |
| CN111632330B (en) | 2022-03-08 |
| WO2021248760A1 (en) | 2021-12-16 |
| DE112020007311T5 (en) | 2023-03-30 |
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