KR100784980B1 - Automatic extingusher having triggering head using face type heating element sheet - Google Patents

Abstract

An automatic extinguisher having a triggering head using a plane heater is provided to be operated promptly in case of fire by using a plane heater and prevent malfunction. An automatic extinguisher having a triggering head using a plane heater includes a main body, a head body, a heat sensitizing body, an intercepting unit, a plane heater(112) and a power supply unit(130). A fire extinguishing material is filled into the main body having an inlet. The head body is installed on an inlet of the main body. The heat sensitizing body is decomposed at a predetermined high temperature. The intercepting unit stops the spray of the fire extinguishing material by intercepting a spray path in the state of being supported by the heat sensitizing body.

Description

AUTOMATIC EXTINGUSHER HAVING TRIGGERING HEAD USING FACE TYPE HEATING ELEMENT SHEET}

1 is a reference diagram for explaining the automatic diffusion fire extinguisher according to the prior art.

2 is a reference diagram showing a state in which the fire extinguisher of the present invention is installed in a closed space.

3 is a perspective view of a fire extinguisher according to the present invention.

Figure 4 is a schematic configuration diagram for explaining the configuration of the detonation system using a planar heating element according to the present invention.

5 is a cross-sectional view taken along line II ′ of FIG. 4.

6 is a perspective view of a maneuvering head according to the present invention;

7 is an exploded perspective view of the starting head according to the present invention;

8 is a longitudinal sectional view of the starting head according to the present invention;

9 and 10 are reference diagrams for explaining the operation of the check ring according to the present invention.

11 to 13 are a series of reference diagrams for explaining the operation of the starting head according to the present invention;

14 is a reference perspective view for explaining a fire extinguisher according to a modified embodiment.

* Description of the symbols for the main parts of the drawings *

110: glass bulb body 111: glass bulb

112: planar heating element 113: temperature sensitive material

130: power supply means 140: fire detector

150: controller 210,210A, 210B: head body

220: piston 230: guide shaft

240: connecting member 250: insulating cap

260: glass bulb support member 270: safety pin

The present invention relates to a fire extinguishing system, and in particular, using a planar heating element that is completely coated on the surface of the glass bulb used as a heat sensing element, a planar heating element that is more quickly started in a fire and has no fear of malfunction due to partial damage over a long period of time. An automatic fire extinguisher having a starting head used.

In general, a fire extinguisher is a mechanism for the initial suppression of fire, and is classified into various types such as water fire extinguishers, acids, alkali fire extinguishers, reinforcing liquid fire extinguishers, foam fire extinguishers, etc., according to extinguishing agents used.

Such a fire extinguisher uses specially processed sodium hydrogen carbonate powder in the extinguishing agent and emits the powdered medicine by incombustible high pressure gas such as nitrogen or carbon dioxide. The sprinkled powdered medicine produces carbon dioxide in the screen to suffocate, and some of them also have the effect of blocking the radiant heat of the powder and are suitable for the fire of oil, electricity and chemicals.

The fire extinguisher has a safety pin, a lever, a handle, a lid, a pressurized gas container, a siphon pipe, a hose, a nozzle, and the like. When using the fire extinguisher, the fire extinguisher is first moved from a fire site to a place of 5 [m] to 6 [m]. Next, pull out the safety pin, put together the handle and the lever together and grab it to release the powdered medicine. At this time, the wind is turned against the fire and radiated like a rain from near. At this time, the fire suppression effect is greatly influenced by the radiation form, the radiation range, the radiation time, the radiation force of the powdered medicine.

Such a fire extinguisher was mainly used for the user to directly hold the fire extinguishing agent toward the fire prevention object, but the situation is rarely used for extinguishing a fire unattended in a place where the user is difficult to reside.

On the other hand, in order to overcome the disadvantages of the fire extinguisher as described above, it is difficult to extinguish as water due to oil, such as boiler room, drying room, engine room, oil installation, etc., or to install a conventional automatic fire extinguishing system such as sprinkler. In general, it is common to install a separate automatic diffusion fire extinguisher on the ceiling.

Thus, Figure 1 is a reference diagram for explaining the automatic diffusion fire extinguisher according to the prior art.

As shown, the conventional automatic diffusion fire extinguisher is filled with a fire extinguishing agent in the cylindrical storage container 10, the medicine outlet 12 formed in the lower storage container 10 for the separate spinning for the emission of the extinguishing agent The head 20 is provided. The head 20 has a spray nozzle 22 formed at the lower center thereof, and the spray nozzle 22 is closed by a stopper 21 fixed with lead serving as a thermal element. In addition, the conventional automatic diffusion fire extinguisher is provided with a gas inlet 23 having a backflow prevention function to fill the gas for pressurization separately from the injection nozzle (22).

According to such a configuration, when a fire occurs and the ambient temperature reaches a predetermined temperature (about 72 ° C.), the lead 21, which is a heat-sensitive body that fixes the stopper 21, is melted, and the stopper 21 falls off to eject the injection nozzle 22. The fire extinguishing agent, which is opened and pressurized and filled in the storage container 10, is spun at a time. This will put out the fire at the beginning of the fire.

However, the automatic diffusion fire extinguisher according to the prior art tended to delay the rapid response to fire. This is because in recent years, since a lot of flame retardant materials are used in buildings, it is difficult to transfer sufficient heat to the thermal element at the beginning of the fire, and the thermal element could not be melted quickly. On the other hand, the area in which the thermal element can directly detect and melt the fire is limited to an extremely nearby area where an automatic diffusion fire extinguisher is installed.

In addition, according to the prior art, a separate gas inlet 23 having a backflow prevention function was required to inject the pressurized gas into the fire extinguisher storage container 10. This causes a problem that the configuration of the head 20 is complicated and the manufacturing cost increases.

Accordingly, the present invention has been proposed to solve the above-mentioned conventional problems, and an object of the present invention is the use of a planar heating element, a plane heating element which is more rapid in the case of fire and there is no fear of malfunction due to partial damage over a long period of time. It is to provide an automatic fire extinguisher having a starting head using.

In order to achieve the above object, an automatic fire extinguisher having a head for starting using a planar heating element according to the technical idea of the present invention is to extinguish a fire by extinguishing a fire extinguishing agent filled inside the main body of the fire extinguisher. The main body has a fire extinguishing agent filled therein, the main body having an inlet through which the extinguishing agent enters and is provided at an inlet of the main body, and is connected to the inlet of the main body so that a fire passage is a passage through which the extinguishing agent is radiated. One head body, a thermosensitive member that decomposes when the temperature rises to a certain temperature, and blocks the radiation path in a state supported by the thermosensitive member to prevent radiation of the extinguishing agent, and the thermosensitive member decomposes and loses the supporting force. A blocking means for releasing the blocking of the radiation path and permitting the emission of the extinguishing agent and the surface of the heat-sensitive material. And it that the planar heating element for heating the heat-sensitive material while the heating when power is applied, comprising: a power supply means for applying power to a heating element to heat the surface characterized in that on the technical configuration.

Here, the radiation path is made of a cylinder chamber provided in the head body, the medicine inlet hole in communication with the cylinder chamber and the fire extinguishing agent flows from the main body and the medicine outlet hole for extinguishing agent outflow, the blocking means is Installed in the cylinder room to be able to move up and down, blocking the communication between the medicine inflow hole and the medicine outflow hole when falling, and includes a piston to allow the medicine inflow hole and the medicine outflow space communication when rising It can be characterized.

In addition, the thermosensitive member may be characterized in that the glass bulb is exploded due to the expansion of the temperature sensitive material to accommodate the temperature sensitive material expands when the temperature rises.

In addition, the planar heating element is any one of carbon-heating coating material, metal and ITO (indium-tin oxide) is coated on the surface of the heat sensitive body by any one of vacuum deposition, electroless plating, coating and printing. It can be characterized.

In addition, a fire detector for detecting a fire, and if the fire detector detects a fire may further comprise a controller for controlling the power supply means to apply power to the planar heating element.

In addition, the head body is composed of a lower body and the upper body for dividing the cylinder chamber, the lower body is provided with the medicine inflow hole and the medicine outflow hole, the upper body is coupled to the lower body and the center It may be characterized by consisting of a coupling portion having a guide through hole, a plurality of column portions extending upward from the circumference of the coupling portion, and a column connecting portion connecting the upper end of the column portion.

The blocking means may further include a guide shaft that supports and connects between the thermal member and the piston, and rises through the guide hole when the thermal member is disassembled.

In addition, the guide is inserted into the through hole is detachably installed to the upper side, the lower side is provided with a shaft seating groove for seating the upper end of the guide shaft, and the upper side is provided with a thermal element seating groove for seating the lower end of the heat-sensitive body is the guide It may be characterized by further comprising a connecting member for connecting the shaft and the thermal element.

In addition, the piston protrudes downward and has a protrusion having a gas injection hole on the side wall, the lower end of the guide shaft is provided with a shaft fitting hole in communication with the gas injection hole, the outer peripheral surface of the lower end of the guide shaft The gas injection groove for securing a flow path for the communication between the gas injection hole and the insertion groove in the state in which the guide shaft is fitted into the shaft fitting hole is formed in the longitudinal direction, the blocking means is a flexible check ring surrounding the outer peripheral surface of the protrusion It may further be characterized in that for allowing the flow of gas from the gas injection hole but block the opposite flow.

In addition, an insulating cap fitting hole is formed at the center of the column connection part, and an insulating cap of a non-conductive material having a fastening hole installed at the center and inserted into the insulating cap fitting hole, and a spiral fastening to the fastening hole of the insulating cap. A top and bottom position adjustable and a heat-sensitive member support member made of a conductive material for contacting and supporting the heat-sensitive body so as to apply power to the planar heating element, and a safety pin that restrains the insulation cap from being separated through the column connection part. It may be characterized by further comprising.

Hereinafter, embodiments of the present invention as described above will be described in detail with reference to the accompanying drawings.

Figure 2 is a reference diagram showing a state in which the fire extinguisher of the present invention is installed in a closed space, Figure 3 is a perspective view of the fire extinguisher according to the present invention.

As shown, the automatic fire extinguisher 300 having a starting head using the planar heating element according to the present invention is a fire zone (which is rather difficult to install a large automatic fire extinguishing system such as a closed engine compartment of a ship, an internal combustion engine power generation chamber) It can be simply installed wherever a small automatic fire extinguishing system is required, such as a kitchen in a restaurant or a restaurant.

Figure 4 is a schematic configuration diagram for explaining the detonation system using a planar heating element according to the present invention, Figure 5 is a cross-sectional view taken along line II 'of FIG.

As shown, the detonation system 100 according to the present invention uses a glass bulb 111 containing a temperature sensitive material 113 as a heat sensing element for starting the fire extinguisher by detecting heat in the case of fire, the glass The planar heating element 112 was coated on the whole or part of the surface of the bulb 111 by any one of vacuum deposition, electroless plating, coating, and printing to heat the temperature sensitive material 113 in case of fire. (The reference numeral 110, which is not referred to by reference, indicates a glass bulb body composed of a glass bulb 111 and a planar heating element 112).

As described above, the present invention has a wider heating area, and is completely in close contact with the glass bulb 111, so that the glass bulb 111 can be exploded quickly by actively utilizing the characteristics of the planar heating element 112 having high heat efficiency due to less heat loss. It is configured to be. In addition, the planar heating element 112 has a start-up stability that can operate without abnormality for a long time because there is little fear of an electrical short even if partially damaged. Hereinafter, each component of the detonation system 100 according to the present invention will be described based on the planar heating element 112.

The detonation system 100 of the present invention includes a glass bulb 111 and a planar heating element 112, a power supply unit 130, a fire detector 140, and a controller 150 constituting the glass bulb body 110. It is configured by.

The glass bulb 111 is a sealed tube having a receiving space therein, and accommodates the temperature sensitive material 113 that expands when the temperature rises in the inner receiving space. As the temperature sensitive material 113, alcohol or ether which is commonly used may be used. Thus, when the glass bulb 111 reaches a predetermined temperature, the glass bulb 111 is exploded due to the expansion of the temperature sensitive material 113. The temperature exploded by the temperature sensitive material 113 may be determined in accordance with the operating standard temperature of the sprinkler legislated in accordance with the fire law and is usually about 65 ℃ to 75 ℃. The glass bulb 111 is exploded in the event of fire by the temperature sensitive material 113 which expands only by the increase of the ambient temperature even if the planar heating element 112 is not used. However, the explosive speed tends to be slow because the temperature sensitive material 113 is limited enough to sense heat and expand only to the extent of the neighboring area. Therefore, when the distance is slightly increased or the ambient temperature is moderately increased due to the flame retardant material, the explosion of the glass bulb 111 due to the planar heating element 112 may be delayed, so that a rapid response may be delayed at the early stage of fire occurrence.

The planar heating element 112, which is the heating means, is coated on the whole or part of the surface of the glass bulb 111 by a large area by vacuum deposition, electroless plating, or printing. As such, when the planar heating element 112 is widely coated on the surface of the glass bulb 111, unlike the linear heating element such as a heating coil, the planar heating element 112 is completely in contact with the surface of the glass bulb 111 and has a high density. You can also secure. As a result, the temperature sensitive material 113 contained in the glass bulb 111 can be actively heated and expanded within a short time without heat loss, and the glass bulb 111 is exploded without delay. In addition, unlike the heating coil, which is a linear heating element, the planar heating element 112 has little risk of electrical short-circuit even when partially torn or damaged and does not become inoperable due to oxidation due to contact with air even when used for a long time. As such, the planar heating element 112 gives a fire extinguisher high operational reliability. As the planar heating element 112, any kind of carbonaceous heating coating, metal, ITO (indium-tin oxide), which are currently widely used, may be used. However, since the planar heating element 112 requires a process of thin coating on the surface of the glass bulb 111 in paste or powder form by vacuum deposition, electroless plating, or printing method, the planar heating element 112 may be in paste or powder state. It is good to make it. In the present invention, the planar heating element 112 is a concept that produces a 'plane-shaped heat', which is contrasted with the linear heating element. Such planar heating elements are being actively researched in various fields recently, and thus, an excellent form will be developed. It is expected. Therefore, the present invention is not limited to adopting and employing the planar heating element 112 of a better form to be developed later.

The power supply means 130 serves to apply power so that the planar heating element 112 generates heat. The power supply unit 130 is used to use the emergency power that can be used in parallel for about 20 minutes to prepare for a power interruption that is frequently used in the event of fire, but always used from the power plant. Since the planar heating element 112 according to the present invention does not have a large power consumption, the glass bulb 111 can be exploded quickly while exhibiting a sufficiently high heating performance even with a small power supply unit 130 such as an emergency battery.

The fire detector 140 detects a fire and transmits a detection signal to the controller 150 and is installed near a fire extinguisher. Various forms may be used as the fire detector 140. For example, a differential spot detector, a constant temperature spot detector, a cumulative smoke detector, a stockpile smoke detector, and the like may be included.

The controller 150 is notified when the fire detector 140 detects a fire and serves to cause the power supply unit 130 to apply power to the planar heating element 112. The controller 150 explodes the glass bulb 111 by heating the planar heating element 112 immediately upon receiving a signal from the fire detector 140, but the user directly controls the controller 150 without interworking with the fire detector 140 as necessary. ) To explode the glass bulb 111. Here, when the detonation system 100 of the present invention is to be operated only by a manual function without an automatic function, the fire detector 140 and the controller 150 are excluded and a user directly operates to apply power to the surface heating element 112. Only one simple switch can be provided.

Subsequently, the configuration of the automatic fire extinguisher 300 of the present invention will be described in detail centering on the starting head 200.

6 is a perspective view of the starting head according to the present invention, FIG. 7 is an exploded perspective view of the starting head according to the present invention, and FIG. 8 is a longitudinal sectional view of the starting head according to the present invention.

As shown, the fire extinguisher 300 of the present invention, together with the above-described detonation system 100, the main body 310 and the head body 210 of the fire extinguisher, the piston 220, the check ring 227, The guide shaft 230, the connection member 240, the insulating cap 250, the thermal member support member 260 and the safety pin 270 is configured to further include. Here, the piston 220, the check ring 227, the guide shaft 230, the connecting member 240 forms a blocking means to allow the radiation of the extinguishing agent when the glass bulb 111 is exploded and loses the supporting force.

The following describes these components except for the detonation system 100 described above.

The main body 310 of the fire extinguisher is not different from the fire extinguisher body applied to a conventional fire extinguisher. That is, the main body 310 is a storage container having a storage space for storing the extinguishing agent such as water, powder, reinforcing liquid, halon, carbon dioxide. The main body 310 is provided with an inlet (311, see Fig. 8) for entering the extinguishing agent filled therein, the siphon pipe 330 is connected to the inlet 311 draped to the bottom of the storage space of the extinguishing agent This is installed. The main body 310 can minimize the investment cost without having to prepare a new production facility by using the cylindrical body of a stationary fire extinguisher widely used in the market as shown in FIG. The main body 310 may be filled with a fire extinguishing agent and need not be limited to a specific form.

The head body 210 is connected to the inlet 311 of the main body of the fire extinguisher (310) is provided with a radiation path that is a passage through which the extinguishing agent is radiated, and the radiation path is broken down into the medicine inlet hole (211A), cylinder chamber 211B, the medicine outflow hole 211C. The head body 210 is composed of a combination of the lower body 210A and the upper body 210B which are coupled to each other to form the cylinder chamber 211B. When the head body 210 is divided in this way, it is easy to install the piston 220 located in the cylinder chamber 211B. The lower side of the lower body (210A) is connected to the inlet 311 of the main body of the fire extinguisher is provided with a medicine inlet hole (211A) for introducing the fire extinguishing agent into the cylinder chamber (211B). The inner circumferential surface of the medicine inflow hole (211A) is preferably formed with a spiral so as to be easily coupled to the siphon tube 330 of the fire extinguisher. In addition, the side wall of the lower body (210A) is provided with a medicine outflow hole (211C) in which the medicine introduced in correspondence with the medicine inflow hole (211A) is radiated. The inner circumferential surface of the medicine discharge hole (211C) is preferably formed spirally so as to fasten the spinning nozzle 320 of the fire extinguisher. On the other hand, the upper body 210B is integrally formed including a coupling portion 213, a column portion 215, and a column connecting portion 217. In the coupling portion 213 of the upper body 210B, a circular flat surface corresponding to the upper surface of the cylinder chamber 211B is formed, and guide holes 213A penetrating through the central portion thereof are formed. The column portion 215 is formed in a plurality of vertical or slightly curved upward from the circumference of the coupling portion 213. The column connection part 217 collects and connects ends of the plurality of column parts 215. The column connector 217 has an insulating cap fitting hole 217A into which the insulating cap 250 is fitted. O-ring 218 is installed in the middle of the lower body 210A and the upper body (210B) for the sealing process when the coupling, O-ring for sealing when the lower body (210A) and the fire extinguisher inlet 311 is coupled 219 is provided.

The piston 220 is installed to be elevated in the cylinder chamber 211B. The piston 220 includes a waist 221 that is concave on an outer circumferential surface of the piston 220 so as to be in close contact with the inner wall of the cylinder chamber 211B by inserting the piston O-ring 229. The lower portion has a protrusion 223 extending downward. A shaft fitting hole 225 into which the lower end of the guide shaft 230 is fitted is formed on the upper surface of the piston 220 to the inside of the protrusion 223. In addition, a gas injection hole 223A communicating with the shaft fitting hole 225 is formed at a sidewall of the protrusion 223. As a result, the piston 220 is blocked in between the medicine inflow hole (211A) and the medicine outflow hole (211C) formed in the head body 210 while being normally lowered to suppress the radiation of the extinguishing agent. However, once a fire occurs and ascends from the cylinder chamber 211B, the medicine inflow hole 211A and the medicine outflow hole 211C are released from the fire extinguishing agent pressurized in the fire extinguisher. Allow to radiate through.

The check ring 227 is made of a cylindrical material of a flexible material to closely wrap the outer peripheral surface of the protrusion 223. This allows the check ring 227 to allow the flow of gas from the gas injection hole 223A to the outside of the protrusion 223 as shown in FIG. 9, but to block the reverse flow as shown in FIG. 10. do. In this case, the check ring 227 is preferably provided with a soft special synthetic rubber (NBR, nitrile-budadiene rubber, nitrile budadiene rubber) to smoothly perform the above-described backflow prevention function. As a result, when the gas for pressurization is injected through the medicine discharge hole 211C of the head body 210, the pressurized gas is introduced into the cylinder chamber 211B, and then formed in the longitudinal direction on the outer circumferential surface of the guide shaft 230. The main body 310 of the fire extinguisher through the gas injection groove 231 via the shaft fitting hole 225 of the piston 220, the gas injection hole 223A, and the medicine discharge hole 211C of the head body 210 in sequence. Flows inside. At this time, when the pressurized gas comes out through the gas injection hole 223A, the check ring 227 is slightly lifted from the outer circumferential surface of the protrusion 223 as shown in FIG. 9 due to the pressure of the pressurized gas. Will be allowed. However, pressure is applied to the outer surface of the check ring 227 against the pressurized gas flowing back from the pressurized fire extinguisher main body 310 in the opposite direction, so that the check ring 227 is further connected with the outer circumferential surface of the protrusion 223. It will be in close contact with each other and will interrupt the flow.

The guide shaft 230 serves to support and connect between the glass bulb 111 and the piston 220. To this end, the guide shaft 230 has a lower end portion fitted into the shaft fitting hole 225 of the piston 220, and an upper end portion of the shaft seating groove of the connecting member 240 supporting the glass bulb 111 from below. 241) and is seated. On the outer circumferential surface of the lower end of the guide shaft 230 is formed a gas injection groove 231 formed along the longitudinal direction in the concave shape. As described above, the gas injection groove 231 has a pressure gas inside the shaft fitting hole 225 even when the lower end of the guide shaft 230 is fitted into the shaft fitting hole 225 of the piston 220. Enable flow As a result, the shaft fitting hole 225 and the gas injection hole 223A of the piston 220 are not completely blocked by the guide shaft 230, thereby securing a flow path for gas flow.

The connecting member 240 is a cylindrical member installed across the guide hole 213A formed in the lower body 210A. The lower side of the connecting member 240 is provided with a shaft seating groove 241 is inserted into the upper end of the guide shaft 230 is seated on the upper side of the heat-sensitive body seating groove is supported by the lower end of the glass bulb 111 (243) is provided. In addition, a circumferential protrusion 245 protruding outward in the circumferential direction is formed around the upper end portion so as not to fall completely into the cylinder chamber 211B of the head body 210 and to extend around the guide hole 213A. As a result, the connecting member 240 is connected between the guide shaft 230 and the glass bulb 111 in a state spanning the guide through hole 213A, and then supports the glass bulb 111 when a fire occurs. The guide shaft 230 is easily separated from the guide through hole 213A due to the force of the piston 220 and the guide shaft 230 rising due to the pressure inside the main body 310, which was pressurized at the moment of explosion. And to allow the piston 220 to rise. Reference numeral 249, which is not referred to by reference, is an O-ring provided for sealing between the connecting member 240 and the guide hole 213A of the upper body 210B.

The insulating cap 250 is simply fitted into the insulating cap fitting hole 217A formed at the center of the column connecting portion 217. In the center of the insulating cap 250 is provided with a fastening hole 251 is formed in the spiral is the heat-sensitive member support member 260 is spirally fastened to enable the vertical adjustment. The insulating cap 250 is provided with a non-conductive plastic as a material, and serves to distinguish the thermal member support member 260 and the head body 210 from being electrically conductive. As a result, a power terminal 131A is connected to the upper side of the glass bulb 111 through the thermal support member 260, and a power terminal 131B to the lower side of the glass bulb 111 through the head body 210. ) Is connected. To this end, a coupling hole 213B is formed in the coupling portion 213 of the head body 210 to which a terminal fixing pin 261 for connecting and fixing the power terminal 131B is coupled.

The safety pin 270 penetrates through the column connecting portion 217 of the head body 210 to restrain the insulating cap 250 from being separated. To this end, the column connection part 217 has a safety pin through hole 217B through which the safety pin 270 passes. In addition, a safety pin restraint groove 253 is formed on an outer circumferential surface of the insulating cap 250 to prevent the insulation cap 250 from being separated while the safety pin 270 penetrating through the column connection part 217 is inserted thereinto. According to such a configuration, the worker does not directly explode the glass bulb 111 by extracting the safety pin 270 from the column connection part 217 to remove the insulation cap 250 and the thermal support member 260. Can be removed without Then, the extinguishing agent pressurized inside the fire extinguisher is radiated to the outside to extinguish the fire. As such, the present invention can be started manually as well as fire extinguishers automatically.

The operation of the automatic fire extinguisher equipped with a starting head using the planar heating element according to the present invention configured as described above will be described with reference to FIGS. 11 to 13 and other accompanying drawings.

First, in a case where a fire does not occur normally, as shown in FIG. 11, the piston 230 is supported by the glass bulb 111 and the guide shaft 230 so that the piston 230 does not rise. As a result, the piston 230 maintains the lowered state while overcoming the pressure P inside the fire extinguisher main body 310 in the case of no fire.

However, when a fire occurs in the fire protection zone that is the fire monitoring area, the fire detector 140 detects this and immediately notifies the controller 150. Then, the controller 150 receiving the fire detection signal controls the power supply means 130 to apply power to the surface heating element 112 electrically connected through the power terminals 131A and 131B.

When the planar heating element 112 receives power, heating is started immediately to heat the temperature sensitive material 113 accommodated in the glass bulb 111. In this case, the planar heating element 112 heats the temperature sensitive material 113 very quickly with almost no heat loss in a state where the planar heating element 112 is completely in contact with the entire surface of the glass bulb 111.

Then, the volume of the temperature sensitive material 113 is expanded and the glass bulb 111 is not able to withstand the expansion pressure by the temperature sensitive material 113 to explode soon. As such, when the glass bulb 111 supporting the piston 220 together with the guide shaft 230 explodes and disappears as shown in FIG. 12, the piston 220 immediately loses its supporting force and is pressurized and filled in the main body 310. The pressure (P) of the medicine does not win and rises.

As a result, a flow path between the medicine inflow hole 211A and the medicine outflow hole 211B moves while the piston 220 which blocks the medicine inlet hole 211A and the medicine outflow hole 211B in the cylinder chamber 211B moves. Is secured. Since the extinguishing agent pressurized inside the main body 310 of the fire extinguisher is strongly radiated to the outside through the medicine discharge hole (211C) and the fire extinguisher spinning nozzle 320. The fire extinguishing agent is radiated to the fire and the fire is extinguished initially.

As described above, the present invention is configured to actively utilize the planar heating element 112 having high reliability as well as heating efficiency to heat and explode the glass bulb 111, which is a thermal element, so that the fire can be extinguished early in the event of a fire.

Subsequently, a modified embodiment of the present invention will be described.

14 is a reference perspective view for explaining a fire extinguisher according to a modified embodiment.

As shown, in the modified embodiment of the present invention, the main body 310 'of the fire extinguisher 300' is provided in the form of a flying saucer rather than a cylindrical shape. The main body 310 'in the form of such a flying saucer has been widely used in an automatic diffusion fire extinguisher and is easily installed on the ceiling rather than being installed on a wall. Therefore, the maneuvering head 200 according to the present invention was installed upside down in comparison with the embodiment before deformation, and the spinning nozzle 320 'was provided with an elbow facing downward.

This modified embodiment shows that the fire extinguisher of the present invention can be installed in a variety of places required by the ceiling, wall covering only by a simple configuration modification.

Although the preferred embodiment of the present invention has been described above, the present invention may use various changes, modifications, and equivalents. It is clear that the present invention can be applied in the same manner by appropriately modifying the above embodiments. Accordingly, the above description does not limit the scope of the invention as defined by the limitations of the following claims.

As described above, the automatic fire extinguisher having a starting head using the planar heating element according to the present invention is completely adhered to a large area on the surface of the glass bulb, and the coated planar heating element quickly heats the temperature sensitive material with almost no heat loss. The bulb can be expelled to extinguish the fire early in the fire.

In addition, the present invention is not easily shorted even if the planar heating element coated on the glass bulb is partially damaged, so there is almost no fear of malfunction or inoperability.

In addition, the present invention can be easily installed in various places with only simple configuration modifications.

In addition, the present invention can be applied to a method of coating a planar heating element on the surface of various thermal elements such as fuses made of molten metal as well as glass bulbs.

In addition, the present invention does not have to provide a separate gas inlet having a backflow preventing function for injecting the gas for pressurization.

In addition, the present invention can automatically radiate the extinguishing agent, as well as to manually extinguish the extinguishing agent as needed, in the case of manual operation to operate remotely or remove the safety pin by hand through the controller can do.

In addition, the present invention can be used in almost any type of extinguishing agent existing in various forms such as water, acid, alkaline liquid, reinforcing liquid, foam, halon.

Claims (11)

Fire extinguisher In the fire extinguisher to extinguish fire by radiating a pressure-filled extinguishing agent inside the main body, A main body filled with an extinguishing agent therein and having an inlet through which the extinguishing agent is entered; Is installed at the inlet of the main body, the cylinder chamber, the communication with the cylinder chamber consists of a medicine inlet hole in which a fire extinguishing agent is introduced from the main body and a medicine outlet hole in which the extinguishing agent flows out to the outside to become a passage through which the extinguishing agent is radiated A head body having a furnace; A thermosensitive member that is a glass bulb that receives a temperature sensitive material that expands when the temperature rises and explodes when the temperature sensitive material reaches a predetermined temperature; It is installed to be able to lift in the cylinder chamber to block the communication between the medicine inflow hole and the medicine outflow hole while lowering the medicine inflow hole and the medicine outflow space provided with a piston to allow communication between the medicine inflow hole and the medicine outflow space when rising, Blocking means for blocking the radiation path in the state supported by the thermal element to prevent the radiation of the extinguishing agent, and if the thermal element is decomposed to lose the support power, blocking means for allowing the radiation of the extinguishing agent while releasing the block to the radiation path; ; A planar heating element provided with any one of carbon-heating paints, metals, and indium-tin oxide (ITO), which is installed in close contact with the surface of the heat-sensitive material, and heats the heat-sensitive material while generating heat when power is applied; An automatic fire extinguisher having a starting head using a planar heating element comprising a power supply means for supplying power to heat the planar heating element. delete delete The method of claim 1, The planar heating element is an automatic fire extinguisher having a starting head using a planar heating element, characterized in that the coating on the surface of the heat-sensitive body by any one of vacuum deposition, electroless plating, coating and printing. The method of claim 1, A fire detector for detecting a fire; And a controller for controlling the power supply means to apply power to the planar heating element when the fire detector detects a fire. The method of claim 1, The head body is composed of a lower body and an upper body for dividing the cylinder chamber, The lower body is provided with the medicine inflow hole and the medicine outflow hole, The upper body includes a coupling part coupled to the lower body and having a guide hole penetrating through the center, a plurality of column parts extending upward from a circumference of the coupling part, and a column connection part connecting an upper end of the column part. An automatic fire extinguisher having a starting head using a planar heating element. The method of claim 6, The shut-off means further includes a guide shaft which supports and connects between the heat-sensitive body and the piston and rises through the guide hole when the heat-sensitive body is disassembled. Fire extinguisher. The method of claim 7, wherein The guide shaft is inserted into the guide hole so as to be detached from the upper side, and the lower side has a shaft seating groove in which the upper end of the guide shaft is seated, and the upper side is provided with a heat sink seating groove in which the lower end of the heat shield is seated. Automatic fire extinguisher having a starting head using a planar heating element, characterized in that it further comprises a connecting member for connecting the thermal element. The method of claim 7, wherein The piston further protrudes downward and has a projection having a gas injection hole on the side wall, the lower end of the guide shaft is fitted and has a shaft fitting hole in communication with the gas injection hole, On the outer circumferential surface of the lower end of the guide shaft, a gas injection groove for securing a flow path for communication between the gas injection hole and the fitting groove is formed in the longitudinal direction while the guide shaft is fitted into the shaft fitting hole. The blocking means further includes a flexible check ring surrounding the outer circumferential surface of the protrusion to allow the flow of gas from the gas injection hole but block the flow in the opposite direction. One automatic fire extinguisher. The method of claim 6, Insulation cap fitting hole is formed in the center of the column connection portion, An insulating cap made of a non-conductive material inserted into the insulating cap fitting hole and having a fastening hole in the center thereof; Spiral fastening is fastened to the fastening hole of the insulating cap, and the surface heating element further comprises a heat-sensitive material support member of the conductive material for contacting and supporting the thermal element so that power can be applied to the surface heating element Automatic fire extinguisher equipped with a head for the operation. The method of claim 10, Automatic fire extinguisher having a starting head using a planar heating element, characterized in that it further comprises a safety pin to penetrate the column connection portion so that the insulating cap is not separated.

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