Personal portable forest fire extinguishing equipment

Abstract

The present invention relates to a portable personal wildfire extinguishing device, characterized by comprising: a fire extinguishing agent tank that can be carried on a user's back, the interior of which is partitioned by a partition into a fire extinguishing material storage unit that stores a plurality of dry ices in layers and a fire extinguishing gas generation unit that rapidly vaporizes the dry ice by reacting it with a vaporization-promoting solution; a fire extinguishing material supply unit that sequentially supplies dry ice stored in the fire extinguishing material storage unit to the fire extinguishing gas generation unit in individual units; and a fire extinguishing gas injection unit that enables the user to spray the fire extinguishing gas inside the fire extinguishing gas generation unit to the outside.

Description

Technology Field

[0001] The present invention relates to a portable personal wildfire extinguishing device that uses dry ice as the main extinguishing agent, enabling rapid movement and efficient extinguishing operations when a wildfire occurs, as well as unmanned monitoring and extinguishing of residual fires. Background Technology

[0003] Wildfires start from a small spark and spread rapidly carried by the wind, not only damaging vast forests and destroying natural landscapes but also inflicting immense damage on animals inhabiting the mountains and nearby residents. While the risk of wildfires varies by region, their frequency is generally inversely proportional to water volume and humidity, and they occur primarily during dry periods, such as winter.

[0004] The numerous trees and plants that make up a forest are highly susceptible to fire and easily catch fire. In particular, the abundance of tinder such as dry twigs, grass, and dry fallen leaves causes the fire to spread rapidly and extensively once ignited. Furthermore, wildfires not only cover a vast area but also make it impossible for firefighting equipment like fire trucks to enter due to the mountainous terrain, and it is also extremely difficult for firefighters to operate. For these reasons, wildfires are extremely difficult and tricky to suppress.

[0005] Therefore, wildfire suppression operations typically involve using firefighting helicopters to spray water on the fire area, deploying numerous firefighters, and using portable personal firefighting equipment such as backpack pumps to extinguish the fire.

[0006] However, firefighting helicopters face the problem of limited water capacity, inability to operate continuously for long periods due to fuel replenishment issues, and inability to fly, especially at night when visibility is poor or in poor weather conditions. Additionally, since backpack pumps use water as their primary extinguishing agent, they face many difficulties, such as difficulty in rapid movement due to their weight of approximately 20 kg, rapid physical exhaustion, and the significant amount of time required to replenish water.

[0007] Meanwhile, even after a wildfire is extinguished, there are often embers or sparks remaining in the ashes, requiring continuous monitoring; however, it is difficult to station monitoring personnel at night. Consequently, re-ignition caused by embers frequently occurs overnight and spreads rapidly, so there is an urgent need for measures to efficiently monitor embers at night and to quickly suppress them when they ignite.

[0009] Patent Document 1 discloses a portable wildfire extinguishing device configured so that a firefighter can carry a small engine and a pump on their back, and connects a nozzle to the pump via a hose to extinguish wildfires using water from valleys or springs. However, Patent Document 1 has the inconvenience of requiring operation by a two-person team consisting of a water supply worker carrying the pump and a water sprayer spraying water through the nozzle, and has the problem of being difficult to operate when there are no valleys or similar areas near the wildfire site or they are too far away.

[0010] In addition, Patent Document 2 discloses a personal portable wildfire extinguishing device equipped with a soil collector, a collection container, and a power generator on a frame that can be carried on the user's back, wherein a soil spraying unit extinguishes the fire by spraying soil supplied from the collection container. However, since Patent Document 2 collects and stores soil in the collection container and is equipped with a power generator, it is considerably heavy, resulting in significantly reduced mobility. Furthermore, due to the characteristics of the backpack structure, it cannot store a large amount of soil, making the extinguishing process cumbersome and difficult to extinguish quickly, as soil must be collected frequently. Prior art literature

[0012] Korean Registered Utility Model No. 20-0431869 (Published Nov. 27, 2006) Korean Registered Patent No. 10-1995261 (Published July 2, 2019) The problem to be solved

[0013] The present invention was conceived in consideration of the aforementioned conventional problems, and its objective is to provide a portable personal wildfire extinguishing device that reduces the weight of the backpack-type personal extinguishing equipment, thereby increasing mobility and slowing down physical exhaustion, which allows for rapid movement and easy extinguishing operations in the event of a wildfire.

[0014] Another problem to be solved by the present invention is to provide a portable personal wildfire extinguishing device capable of rapidly extinguishing wildfires by spraying cooled carbon dioxide gas using dry ice as the main extinguishing agent.

[0015] Another objective of the present invention is to provide a portable personal wildfire extinguishing device capable of unmanned monitoring of residual fires even at night and rapidly suppressing re-ignition caused by residual fires.

[0016] The problems of the present invention are not limited to those mentioned above, and other unmentioned problems will be clearly understood by those skilled in the art from the description below. means of solving the problem

[0018] A portable personal wildfire extinguishing device according to the present invention for achieving such objectives comprises: a fire extinguishing agent tank that can be carried on a user's back, the interior of which is partitioned by a partition into a fire extinguishing material storage unit that stores a plurality of dry ices in layers and a fire extinguishing gas generation unit that rapidly vaporizes dry ice by reacting it with a vaporization-promoting solution; a fire extinguishing material supply unit that sequentially supplies dry ice stored in the fire extinguishing material storage unit to the fire extinguishing gas generation unit in individual units; and a fire extinguishing gas injection unit that enables the user to spray fire extinguishing gas from within the fire extinguishing gas generation unit to the outside.

[0019] According to one embodiment of the present invention, the system may further include an automatic extinguishing gas injection means for monitoring residual embers of a extinguished wildfire and automatically injecting extinguishing gas from within a extinguishing gas generating unit when re-ignition occurs due to residual embers.

[0020] According to one embodiment of the present invention, the automatic extinguishing gas injection means may comprise: at least one temperature sensor provided in a extinguishing agent tank and detecting the ambient temperature; and a extinguishing gas injection nozzle opening / closing unit provided in a extinguishing gas injection nozzle provided in a extinguishing gas generating part, which opens the extinguishing gas injection nozzle so that the extinguishing gas is injected to the outside when the temperature detected by the temperature sensor is higher than a preset temperature.

[0021] According to one embodiment of the present invention, it may be configured to further include a remote monitoring means capable of monitoring in real time at a remote location whether re-ignition occurs due to residual fire.

[0022] According to one embodiment of the present invention, the remote monitoring means may be configured to include: a remote monitoring terminal including a display unit capable of displaying the location coordinates where re-ignition has occurred; a GPS module provided in a fire extinguishing agent tank; and wireless communication modules provided respectively in the remote monitoring terminal and the fire extinguishing agent tank.

[0023] According to one embodiment of the present invention, a remote monitoring terminal may further include an alarm means for notifying of the occurrence of re-ignition when re-ignition occurs due to residual fire.

[0024] According to one embodiment of the present invention, the remote monitoring means further includes at least one camera provided in the fire extinguishing agent tank, so that surrounding images can be transmitted in real time to a remote monitoring terminal.

[0025] According to one embodiment of the present invention, a plurality of fixing members are further foldably included on the bottom surface of the fire extinguishing agent tank so as to firmly fix the fire extinguishing agent tank to the ground, thereby enabling effective monitoring of residual fires, for example, at night.

[0026] According to one embodiment of the present invention, the fire extinguishing gas nozzle opening and closing unit may be composed of an electronically controllable solenoid valve.

[0027] According to one embodiment of the present invention, a fire extinguishing material supply unit may be configured to include: a fire extinguishing material inlet formed in a partition wall of a fire extinguishing agent tank; a material inlet opening and closing means for sealing and opening the fire extinguishing material inlet in an airtight state; a lifting means for moving dry ice stacked in layers in a fire extinguishing material storage unit upward in predetermined steps; and a pusher unit for pushing the uppermost dry ice among the stacked dry ice through the fire extinguishing material inlet into a fire extinguishing gas generating unit.

[0028] According to one embodiment of the present invention, the lifting means may be configured to include: a stopper member provided on the upper side of the storage portion of the extinguishing material; a lifting member that supports dry ice from below; and an elastic member that biases the lifting member upward.

[0029] According to one embodiment of the present invention, the pusher unit may be configured to include: a linear actuator provided on the upper side of the digestion material storage unit; and a push member that reciprocates horizontally by the linear actuator and pushes dry ice into the digestion gas generating unit.

[0030] According to one embodiment of the present invention, a fire extinguishing gas injection unit may be configured to include: an extension hose connected to a fire extinguishing gas injection port provided in a fire extinguishing gas generating unit; a nozzle member connected to the tip of the extension hose for injecting fire extinguishing gas; and an operating valve provided in the nozzle member for opening and closing the nozzle member.

[0031] According to one embodiment of the present invention, the extinguishing gas generation unit further includes a extinguishing gas detection sensor for detecting the amount of extinguishing gas, and the extinguishing raw material supply unit may be configured to supply dry ice stored in the extinguishing raw material storage unit to the extinguishing gas generation unit when the amount of extinguishing gas detected by the extinguishing gas detection sensor is less than a preset reference amount.

[0032] According to one embodiment of the present invention, the system may further include a raw material detection sensor that detects the presence or absence of dry ice in a storage unit for extinguishing raw materials; and an alarm unit that alerts when the raw material detection sensor detects that there is no dry ice, thereby enabling rapid replenishment of dry ice.

[0033] According to one embodiment of the present invention, the operational safety of the wildfire extinguishing equipment can be enhanced by further including first and second automatic pressure control valves that maintain the pressure of the fire extinguishing material storage unit and the fire extinguishing gas generation unit at or below a preset reference pressure.

[0034] According to one embodiment of the present invention, the first and second pressure gauges are further included to indicate the pressure of the digestion raw material storage unit and the digestion gas generation unit, respectively, so that the pressure acting on each can be easily checked from the outside.

[0035] According to one embodiment of the present invention, a fire extinguishing agent tank may include a viewing window that allows the amount of dry ice stored in the fire extinguishing material storage section to be identified from the outside.

[0036] According to one embodiment of the present invention, the vaporization-promoting solution may be water filled in a predetermined amount in a digestion gas generating part.

[0037] According to one embodiment of the present invention, the fire extinguishing agent tank can minimize unnecessary vaporization loss of dry ice by interposing an insulating material between the inner and outer walls made of plastic material. Effects of the invention

[0039] According to the portable personal wildfire extinguishing equipment of the present invention, since dry ice, which can exhibit excellent fire extinguishing capabilities through cooling (-78.5℃) and suffocation, is used as the main extinguishing agent, the weight of the backpack-type personal extinguishing equipment can be significantly reduced. Accordingly, the portability and mobility of personal firefighters (firefighters, etc.) can be enhanced and physical exertion reduced, thereby enabling rapid movement and easy extinguishing operations in the event of a wildfire.

[0040] In addition, by using dry ice as the primary extinguishing agent to spray cooled carbon dioxide gas onto the flames for extinguishment, wildfires can be extinguished quickly and reliably, and the operating time of personal firefighting equipment can be extended, allowing wildfire suppression operations to be performed more efficiently.

[0041] In addition, residual embers can be easily monitored unmanned even at night, and a rapid response is possible even if re-ignition occurs due to residual embers. Brief explanation of the drawing

[0043] FIG. 1 is a schematic perspective view illustrating a portable personal wildfire extinguishing device according to the present invention. FIG. 2 is a cross-sectional view of a portable personal wildfire extinguishing device according to the present invention. FIG. 3 is an excerpted cross-sectional view taken along line III-III of FIG. 2, FIG. 4 is a partially cutaway side view illustrating a ground-fixing structure of a portable personal wildfire extinguishing device according to the present invention. FIG. 5 is a block diagram illustrating the configuration of a portable personal wildfire extinguishing device according to the present invention. FIG. 6 is a flowchart for explaining an unmanned monitoring method of a portable personal wildfire extinguishing device according to the present invention. Specific details for implementing the invention

[0044] Specific features and other advantages of the present invention, and methods for achieving them, will become clear by referring to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below but may be implemented in various different forms. These embodiments are provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims. Throughout the specification, the same reference numerals refer to the same components.

[0045] Hereinafter, a portable personal wildfire extinguishing device according to embodiments of the present invention will be described with reference to the drawings.

[0047] In FIGS. 1 to 3, the portable personal wildfire extinguishing equipment (1) according to the present invention may be configured to basically include a fire extinguishing agent tank (10) that can be carried on the back by an individual firefighter, such as a firefighter, by storing a fire extinguishing agent inside, a fire extinguishing raw material supply unit (30), and a fire extinguishing gas injection unit (40).

[0049] The fire extinguishing agent tank (10) may be equipped with a fire extinguishing material storage unit (11) capable of storing multiple dry ice (D) as fire extinguishing materials, and a fire extinguishing gas generation unit (12) that rapidly vaporizes the dry ice (D) supplied from the fire extinguishing material storage unit (11) to generate a cooled carbon dioxide (CO₂) fire extinguishing gas. The fire extinguishing material storage unit (11) and the fire extinguishing gas generation unit (12) may be configured by partitioning the interior of the fire extinguishing agent tank (10) by a partition wall (13). These fire extinguishing material storage unit (11) and the fire extinguishing gas generation unit (12) may be arranged in a left-right direction as illustrated, for example, and may also be arranged in an up-down direction, although not separately illustrated. Accordingly, in this embodiment, multiple dry ice (D) may be stored in a layered stacked form within the fire extinguishing material storage unit (11).

[0050] The dry ice (D) used in the present invention may be adopted in the form of square blocks (width × height × depth: approximately 140 mm × 70 mm × 50 mm) with a weight of about 1.6 kg per block, for example, and at least three blocks may be stacked. Preferably, about 3 to 5 blocks may be stacked.

[0051] A predetermined amount of vaporization-promoting solution (L) can be filled into the extinguishing gas generation unit (12) to promote the rapid vaporization of dry ice (D). Any vaporization-promoting solution (L) is acceptable as long as it promotes the vaporization of dry ice (D). For example, the vaporization-promoting solution (L) can be water and can be filled in about 5 liters. Accordingly, the dry ice (D) supplied from the extinguishing agent storage unit (11) reacts with the vaporization-promoting solution (L) inside the extinguishing gas generation unit (12) to rapidly vaporize and turn into a cooled carbon dioxide (about -78.5°C) extinguishing gas.

[0052] Here, according to the inventor's experiments, when three pieces of dry ice (D) of the size described above are reacted with approximately 5 liters of water, which is a vaporization-promoting solution (L), to generate carbon dioxide extinguishing gas, it was found that the time required for one fire extinguishing operation could last for approximately 20 minutes. This demonstrates that the extinguishing time can be significantly increased compared to the time required for one fire extinguishing operation when using conventional backpack-type personal fire extinguishing equipment that uses water as a extinguishing agent, which is approximately 10 minutes (using about 2 liters of water per minute). In addition, the weight is within approximately 10 kg (3 pieces of dry ice weighing 1.6 kg each + 5 liters of water = 9.8 kg), which is significantly reduced compared to conventional fire extinguishing equipment weighing about 20 kg (20 liters of water). Therefore, compared to conventional methods, the number of times the extinguishing agent needs to be refilled can be reduced by more than half, while the weight of the equipment is significantly reduced, making very rapid and efficient wildfire extinguishing operations possible.

[0053] A fire extinguishing agent tank (10) of this type may have a roughly rectangular shape so as to be carried on the back, and may be equipped with a shoulder strap member (14) on one side. Additionally, it may be made of lightweight plastic for ease of portability, and it may be preferable to include an insulating material (10c) to minimize unnecessary vaporization loss of dry ice (D) stored inside. The insulating material (10c) may be provided in various forms, for example, as shown in FIG. 3, the fire extinguishing agent tank (10) may be composed of inner and outer walls (10a) (10b), and the insulating material (10c) may be provided in a form interposed between the inner and outer walls (10a) (10b).

[0054] On one side of the fire extinguishing agent tank (10), a fire extinguishing material supply slot (slot: 15) may be provided to communicate with the fire extinguishing material storage unit (11), so as to allow dry ice (D), which is a fire extinguishing material, to be supplied from the outside into the fire extinguishing material storage unit (11). The fire extinguishing material supply slot (15) may be opened and closed by a cover (16). The cover (16) may be provided with a sealing material (not shown) to close the fire extinguishing material supply slot (15) in an airtight state.

[0055] Additionally, the fire extinguishing agent tank (10) may be equipped with a viewing window (17) made of a transparent material so that the quantity or presence of dry ice (D) stored in the fire extinguishing material storage section (11) can be easily checked from the outside. Since the dry ice (D) is stacked in layers within the fire extinguishing material storage section (11), the viewing window (17) may be provided in a vertically elongated shape.

[0056] And on the other side of the fire extinguishing agent tank (10), a fire extinguishing gas nozzle (18) may be provided to communicate with the fire extinguishing gas generating unit (12) so as to allow the cooled carbon dioxide (CO₂) fire extinguishing gas generated within the fire extinguishing gas generating unit (12) to be ejected to the outside.

[0057] Meanwhile, it is preferable that the fire extinguishing agent tank (10) be equipped with first and second automatic pressure control valves (19)(20) to automatically control the internal pressure of the fire extinguishing raw material storage unit (11) and the fire extinguishing gas generation unit (12), respectively. This is because when cooled carbon dioxide expanded by the combination of dry ice (D) and water, which is a vaporization promoting solution (L), is generated within the fire extinguishing gas generation unit (12), the internal pressure rises, posing a risk of explosion. The first and second automatic pressure control valves (19)(20) automatically maintain the pressure within the fire extinguishing raw material storage unit (11) and the fire extinguishing gas generation unit (12) below a preset pressure through the controller (60) described later. These first and second automatic pressure control valves (19)(20) may be configured as conventional safety valves, and therefore a detailed description is omitted.

[0058] In addition, the fire extinguishing agent tank (10) may be equipped with first and second pressure gauges (21)(22) capable of displaying the internal pressure of the fire extinguishing material storage unit (11) and the fire extinguishing gas generation unit (12). The first and second pressure gauges (21)(22) allow the internal pressure of the fire extinguishing material storage unit (11) and the fire extinguishing gas generation unit (12) to be easily checked from the outside. These first and second pressure gauges (21)(22) may also be conventional analog or digital pressure gauges, and a detailed description is omitted.

[0060] The digestion material supply unit (30) may be configured to include a digestion material inlet (31), a means for opening and closing the material inlet (32), a lifting means (33), and a pusher unit (37).

[0061] The fire extinguishing material inlet (31) can be formed by penetrating the upper side of the partition wall (13) of the fire extinguishing agent tank (10) and can be configured with a size and shape corresponding to the outer shape of dry ice (D). The means for opening and closing the material inlet (32) can seal and open the fire extinguishing material inlet (31) in a hermetically sealed state. To this end, the means for opening and closing the material inlet (32) may be configured to include, for example, a shielding door (not shown) that is slidably mounted on the partition wall (13) to open and close the fire extinguishing material inlet (31), and an actuator (not shown) that reciprocates sliding the shielding door.

[0062] The lifting means (33)) may be configured to move the dry ice (D) stacked in layers in the fire extinguishing material storage unit (11) upward in predetermined steps. The lifting means (33) may be configured to include a stopper member (34), a lifting member (35), and a compression coil spring (36) as an elastic member.

[0063] The stopper member (34) can be installed horizontally on the upper side of the fire extinguishing material storage section (11). The bottom surface of the stopper member (34) is positioned at a level corresponding to the top of the fire extinguishing material inlet (31) of the partition wall (13) so as not to obstruct the insertion of dry ice (D). The stopper member (34) may be provided with a guide slot (34a) in the middle portion to guide the push member (39) of the pusher unit (37) described later to move in a horizontal direction.

[0064] The lifting member (35) may be configured, for example, as a plate that supports the dry ice (D) from below so that the dry ice (D) can be stacked on the upper surface. The lifting member (35) may be provided with a guide rail (not shown) in a vertical direction on the inner side of the fire extinguishing material storage unit (11) to allow for smooth lifting. A compression coil spring (36) is located at the bottom of the lifting member (35) and biases the lifting member (35) upward. Accordingly, the lifting means (33) can sequentially raise a plurality of dry ice (D) stacked within the fire extinguishing material storage unit (11).

[0065] The pusher unit (37) may be of any shape as long as it is configured to push the uppermost dry ice (D) among the stacked dry ice (D) toward the extinguishing gas generating unit (12). For example, as illustrated, it may be configured to include a linear actuator (38) mounted on the upper surface of the stopper member (34) and a push member (39) that reciprocates in a horizontal direction (left and right direction in FIG. 2) by the linear actuator (38). The push member (39) moves guided by the guide slot (34a) of the stopper member (34) and pushes the uppermost dry ice (D) toward the extinguishing gas generating unit (12) (right direction in FIG. 2), thereby pushing it into the extinguishing gas generating unit (12) through the extinguishing raw material inlet (31).

[0067] The fire extinguishing gas injection unit (40) may be configured to include an extension hose (41), a nozzle member (42), and an operating valve (43).

[0068] The extension hose (41) can be connected at one end to a fire extinguishing gas nozzle (18) provided to communicate with the fire extinguishing gas generating part (12) of the fire extinguishing agent tank (10) in a detachable structure. For example, a standard one-touch connector (44) can be provided at one end of the extension hose (41) to allow for easy connection and disconnection. The extension hose (41) is preferably composed of a flexible hose that can be freely bent to facilitate the injection of fire extinguishing gas.

[0069] The nozzle member (42) may be connected to the other end of the extension hose (41) either integrally or in a detachable structure. The nozzle member (42) may be configured in the shape of a long pipe so that a suppression officer can easily grasp it and spray fire extinguishing gas. An operating valve (43) is installed on the nozzle member (42) to control the spraying of fire extinguishing gas by opening and closing the nozzle member (42).

[0071] As shown in FIG. 5, the wildfire extinguishing equipment (1) of the present invention may further include a raw material detection sensor (51) that detects the presence or absence of dry ice (D) in the fire extinguishing raw material storage section (11) of the fire extinguishing agent tank (10), a fire extinguishing gas detection sensor (52) that detects the presence or absence of carbon dioxide in the fire extinguishing gas generation section (12) and automatically supplies dry ice (D), and a controller (60) for operating and controlling the above-described components. Additionally, it is preferable to include an alarm unit (53) that notifies the user when the dry ice (D) is detected by the raw material detection sensor (51) to be completely depleted. The alarm unit (53) may be composed of a raw material alarm buzzer (54) that indicates the absence of raw material with sound and / or a raw material alarm lamp (55) that indicates it visually.

[0072] As shown in FIG. 3, the raw material detection sensor (51) may be provided on the inner side of the extinguishing raw material storage unit (11). The raw material detection sensor (51) may be, for example, a proximity sensor and may be installed at a position corresponding to the stacked uppermost dry ice (D). Accordingly, when all the stored dry ice (D) is depleted, this is detected and transmitted to the controller (60), and the controller (60) can quickly and reliably indicate that there is no raw material by driving the alarm unit (53).

[0073] A extinguishing gas detection sensor (52) may be provided on the inner side of the extinguishing gas generation unit (12). The extinguishing gas detection sensor (52) detects the amount of carbon dioxide in the extinguishing gas generation unit (12) and transmits it to the controller (60). Then, by the signal from the controller (60), the raw material input opening / closing unit (32) is operated to open the extinguishing raw material input port (31), and at the same time, the extinguishing raw material supply unit (30) is operated to supply dry ice (D) stored in the extinguishing raw material storage unit (11) into the extinguishing gas generation unit (12).

[0074] A controller (60) is provided in a fire extinguishing agent tank (10). The controller (60) includes a control module (61) containing a predetermined control logic and a battery (not shown) to automatically control the operation of the equipment and to set specific necessary items. Additionally, it may be equipped with various operation switches (not shown) required for operation or a display unit (not shown), such as a touchscreen.

[0076] Meanwhile, the portable personal wildfire extinguishing device (1) of the present invention may further include an automatic extinguishing gas injection means capable of monitoring residual fires unmanned even at night when visibility is poor, and automatically injecting extinguishing gas from within the extinguishing gas generating unit (12) when re-ignition occurs. The unmanned automatic night monitoring mode can be set via a controller (60), and the operating time can be set by a timer (62).

[0077] The automatic extinguishing gas injection means may be configured to include a temperature sensor (71) and a extinguishing gas injection nozzle opening / closing unit (72). Multiple temperature sensors (71) may be provided and appropriately distributed around the perimeter of the extinguishing agent tank (10). The extinguishing gas injection nozzle opening / closing unit (72) may be provided at the extinguishing gas injection nozzle (18) provided in the extinguishing gas generation unit (12) of the extinguishing agent tank (10). The extinguishing gas injection nozzle opening / closing unit (72) may automatically open the extinguishing gas injection nozzle (18) so that the extinguishing gas is injected to the outside when the temperature detected by the temperature sensor (71) is higher than a preset temperature. Such a extinguishing gas injection nozzle opening / closing unit (72) may be configured as a solenoid valve that is operated by a signal from a controller (60), for example.

[0078] Accordingly, the present invention may further be equipped with a remote monitoring means to monitor in real time at a remote location whether re-ignition caused by residual embers occurs.

[0079] The remote monitoring means may be configured to include a remote monitoring terminal (81), a GPS module (82), and a wireless communication module (83). The remote monitoring terminal (81) may include a display unit (84) to display the location coordinates of the ignition point (P) where re-ignition occurred. Additionally, the remote monitoring terminal (81) may be equipped with an alarm lamp (85) and a speaker (86) to alert that re-ignition has occurred.

[0080] The GPS module (82) may be provided in the controller (60) provided in the fire extinguishing agent tank (10), and the wireless communication module (83) may be provided in the controller (60) and the remote monitoring terminal (81), respectively.

[0081] It is even better if such remote monitoring means are equipped with a camera (87) capable of monitoring a residual fire monitoring area via video and an image module (88) for processing the video captured by the camera (87) and transmitting it to a remote monitoring terminal (81).

[0082] At least one camera (87) may be provided in the fire extinguishing agent tank (10), and the image module (88) may be provided in the controller (60) and controlled by the control module (61). The image from the camera (87) may be transmitted to the remote monitoring terminal (81) in real time, but the configuration may be such that the image is captured and transmitted to the remote monitoring terminal (81) only when an abnormal temperature is detected by the temperature sensor (71).

[0083] Meanwhile, in order to monitor residual fires unmanned at night in this manner, the wildfire extinguishing equipment (1) of the present invention must be fixed firmly and stably so as not to be overturned by wind or the like. To this end, a plurality of fixing members (90) capable of fixing the fire extinguishing agent tank (10) to the ground (G) may be provided on the bottom surface of the fire extinguishing agent tank (10).

[0084] The fixing member (90) may be of any shape as long as it can fix the fire extinguishing agent tank (10) to the ground (G), and for example, as shown in FIG. 4, it may be configured with a structure that can be folded and unfolded by providing a hinge (94) on the bottom surface of the fire extinguishing agent tank (10). This fixing member (90) may have a structure in which the first, second, and third anchor parts (91)(92)(93) can be extended and retracted in multiple stages so that it can be driven deep into the ground (G). Also, if necessary, it is possible to use a string (not shown) to firmly tie it to nearby trees, etc.

[0086] Next, the operation of the portable personal wildfire extinguishing device (1) according to the present invention configured as described above will be explained.

[0087] When a wildfire occurs, firefighters store multiple blocks of dry ice (D) in a block shape by introducing them into the fire extinguishing material storage section (11) of the fire extinguishing agent tank (10) through the fire extinguishing material supply slot (15). The dry ice (D) introduced sequentially is stacked in layers on the lifting member (35) of the lifting means (33), and the lifting member (35) supports the dry ice (D) elastically by descending while compressing the compression coil spring (36). At this time, the uppermost dry ice (D) is in contact with the lower surface of the stopper member (34), and the dry ice (D) stacked in layers can be elastically supported between the stopper member (34) and the lifting member (35).

[0088] Along with this, about 5 liters of water is filled into the extinguishing gas generating part (12) of the extinguishing agent tank (10) as a vaporization promoting solution (L).

[0089] Here, for example, when three dry ice (D) are stored, as described above, the weight of the firefighting equipment (1) is approximately 10 kg, which is much lighter than conventional equipment that uses water as a firefighting agent, so it can be moved quickly and easily even in rugged mountainous terrain while minimizing physical exertion.

[0090] The dry ice (D) stored in the fire extinguishing material storage unit (11) can be introduced into the fire extinguishing gas generation unit (12) by operating the controller (60) immediately upon arrival at the fire scene or during dispatch. The initial supply of dry ice (D) is carried out by operating the controller (60), but thereafter it can be carried out automatically by the signal of the fire extinguishing gas detection sensor (52).

[0091] That is, when the controller (60) is operated, the inlet opening / closing unit (32) opens to open the fire extinguishing material inlet (31) formed in the partition (13), and then the pusher unit (37) is operated so that the push member (39) moves forward in the horizontal direction (right direction in Fig. 2) by the linear actuator (38). Then, the uppermost dry ice (D) moves horizontally toward the fire extinguishing material inlet (31) and is introduced into the fire extinguishing gas generating unit (12).

[0092] After the uppermost dry ice (D) is introduced into the extinguishing gas generating unit (12), the push member (39) moves backward (to the left in FIG. 2) and returns to the initial position, and then the inlet opening / closing unit (32) closes to close the extinguishing raw material inlet (31). At the same time, the lifting member (35) rises due to the restoring elasticity of the compression coil spring (36), and the dry ice (D) that was in the second position from the top comes into contact with the lower surface of the stopper member (34) and stops, becoming positioned at the uppermost side.

[0093] Dry ice (D) introduced into the extinguishing gas generating unit (12) reacts with water and rapidly vaporizes, and the extinguishing gas generating unit (12) becomes filled with cooled carbon dioxide extinguishing gas (G). Accordingly, the pressure in the extinguishing gas generating unit (12) increases significantly due to the expanded extinguishing gas (G).

[0094] In this state, when a firefighter holds the nozzle member (42) of the fire extinguishing gas injection unit (40) with his hand and opens the operating valve (43), the fire extinguishing gas (G) inside the fire extinguishing gas generating unit (12) can move through the fire extinguishing gas injection port (18) and the extension hose (41) and be sprayed outward from the nozzle member (42). Then, the firefighter can move the nozzle member (42) to spray the fire extinguishing gas (G) toward the flames to extinguish the wildfire.

[0095] At this time, since the carbon dioxide extinguishing gas (G) sprayed outward is cooled to a very low temperature (approx. -78.5℃), the flame can be quickly extinguished by the cooling action of the extinguishing gas (G) and the suffocating action of the carbon dioxide.

[0096] Meanwhile, when the amount of extinguishing gas (G) in the extinguishing gas generating unit (12) gradually decreases and the pressure in the extinguishing gas generating unit (12) is detected by the extinguishing gas detection sensor (52) to be below a preset reference pressure, the control module (61) of the controller (60) transmits a raw material supply signal. Then, the input opening / closing unit (32) and the pusher unit (37) operate automatically as described above to re-inject dry ice (D) in the extinguishing raw material storage unit (11) into the extinguishing gas generating unit (12), thereby enabling the extinguishing operation to continue.

[0097] And, when all the dry ice (D) stored in the fire extinguishing material storage unit (11) is depleted, the fire extinguishing material detection sensor (51) detects this and transmits the signal to the controller (60). Then, the raw material alarm buzzer (54) and raw material alarm lamp (55) of the alarm unit (53) emit a raw material shortage alarm by means of the control signal of the controller (60), so that the firefighter can easily know that the raw material is depleted while carrying the equipment (1) on their back and performing fire extinguishing work. In addition, when storing dry ice (D), the quantity and presence of dry ice (D) can also be easily determined through the viewing window (17) provided in the fire extinguishing agent tank (10).

[0099] Even after a wildfire is extinguished, re-ignition by residual embers is frequent. The extinguishing equipment (1) of the present invention can easily monitor residual embers unmanned, regardless of location or time, especially at night. The night unmanned monitoring mode can be operated as follows and is explained in conjunction with Fig. 6.

[0100] First, as shown in FIG. 4, a plurality of fixing members (90) provided in a folded state on the bottom surface of the fire extinguishing agent tank (10) are rotated and unfolded. Next, each anchor part (91)(92)(93) of the multi-stage fixing member (90) is extended, and then the fire extinguishing agent tank (10) is fixed by driving it deep into the ground (E). Then, the fire extinguishing gas injection unit (40) is separated from the fire extinguishing agent tank (10).

[0101] In this state, the controller (60) is set to nighttime unmanned monitoring mode, and the operating time and reference temperature are set (step, 110). Then, a plurality of temperature sensors (71) provided around the fire extinguishing agent tank (10) detect the ambient temperature in real time (step, 120).

[0102] Next, the ambient temperature detected by the temperature sensor (71) is compared with the set temperature in real time (step, 130), and if the detected temperature is lower than the set temperature, the standby state is maintained (step, 140).

[0103] However, if the detected temperature is higher than the set temperature, the fire extinguishing gas injection nozzle opening / closing unit (72) is automatically opened to spray carbon dioxide fire extinguishing gas (G) inside the fire extinguishing gas generating unit (12) to the outside. At the same time, location coordinates for the re-ignition point (P) are transmitted to a remote monitoring terminal (81) via a GPS module (82) and a wireless communication module (83) (step, 150).

[0104] Then, the location coordinates of the re-ignition point (P) are displayed on the display unit (84) of the remote monitoring terminal (81), and the alarm lamp (85) lights up or flashes while the speaker (86) emits an alarm sound (step 160).

[0105] In addition, if a camera (87) is provided, video information regarding the re-ignition site can also be transmitted to the remote monitoring terminal (81) through the video module (88) and wireless communication module (83) of the controller (60).

[0106] Therefore, not only can residual embers be easily monitored unmanned even at night regardless of location, but firefighting operations and related countermeasures can also be carried out very quickly in the event of re-ignition caused by residual embers.

[0108] A person skilled in the art to which the present invention pertains will understand that the present invention may be implemented in other specific forms without altering its technical concept or essential features. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive. The scope of the present invention is defined by the claims set forth below rather than by the detailed description above, and all modifications or variations derived from the meaning and scope of the claims and equivalent concepts should be interpreted as being included within the scope of the present invention. Explanation of the symbols

[0110] 10: Fire extinguishing agent tank 10a, 10b: Inner and outer walls 10c: Insulation material 11: Fire extinguishing material storage section 12: Extinguishing gas generation section 13: Bulkhead 14: Suspenders 15: Digestive material supply slot 17: Viewing window 18: Fire extinguishing gas nozzle 19, 20: First and second automatic pressure regulating valves 21, 22: 1st and 2nd pressure gauges 30: Digestion material supply unit 31: Digestive material inlet 32: Inlet opening / closing unit 33: Lifting means 34: Stopper member 35: Lifting member 36: Compression coil spring 37: Pusher unit 38: Linear actuator 39: Push member 40: Fire extinguishing gas injection unit 41: Extension hose 42: Nozzle member 43: Control valve 51: Fire extinguishing material detection sensor 52: Fire extinguishing gas detection sensor 53: Alarm unit 54: Raw material alarm buzzer 55: Raw material alarm lamp 60: Controller 61: Control Module 62: Timer 71: Temperature sensor 81: Remote monitoring terminal 82: GPS module 83: Wireless communication module 84: Display unit 85: Alarm lamp 86: Speaker D: Dry ice L: Vaporization accelerating solution P: Point of re-ignition E: Ground surface

Claims

Claim 1 A portable personal wildfire extinguishing device comprising: a fire extinguishing agent tank that can be carried on a user's back, the interior of which is partitioned by a partition wall into a fire extinguishing agent storage unit that stores multiple dry ices in layers and a fire extinguishing gas generation unit that rapidly vaporizes the dry ice by reacting it with a vaporization promoting solution; a fire extinguishing agent supply unit that sequentially supplies the dry ice stored in the fire extinguishing agent storage unit in individual pieces to the fire extinguishing gas generation unit; and a fire extinguishing gas injection unit that enables the user to eject the fire extinguishing gas inside the fire extinguishing gas generation unit to the outside; wherein the fire extinguishing agent supply unit comprises: a fire extinguishing agent inlet formed in the partition wall of the fire extinguishing agent tank; a means for opening and closing the fire extinguishing agent inlet to seal and open the fire extinguishing agent inlet in an airtight state; a lifting means for moving the dry ice stacked in layers in the fire extinguishing agent storage unit upward in predetermined steps; and a pusher unit that pushes the uppermost dry ice among the stacked dry ices into the fire extinguishing gas generation unit through the fire extinguishing agent inlet. Claim 2 A portable personal wildfire extinguishing device according to claim 1, further comprising an automatic extinguishing gas injection means for monitoring residual embers of a extinguished wildfire and automatically injecting extinguishing gas within the extinguishing gas generating unit when re-ignition occurs due to residual embers. Claim 3 A portable personal wildfire extinguishing device according to claim 2, wherein the automatic extinguishing gas injection means comprises: at least one temperature sensor provided in the extinguishing agent tank and detecting the ambient temperature; and a extinguishing gas injection nozzle opening / closing unit provided in the extinguishing gas injection nozzle provided in the extinguishing gas generating part, which opens the extinguishing gas injection nozzle so that the extinguishing gas is injected to the outside when the temperature detected by the temperature sensor is higher than a preset temperature. Claim 4 A portable personal wildfire extinguishing device according to claim 2 or claim 3, further comprising a remote monitoring means capable of monitoring in real-time at a remote location whether re-ignition occurs due to residual fire. Claim 5 A portable personal wildfire extinguishing device according to claim 4, wherein the remote monitoring means comprises: a remote monitoring terminal including a display unit capable of displaying the location coordinates where re-ignition occurred; a GPS module provided in the fire extinguishing agent tank; and wireless communication modules provided respectively in the remote monitoring terminal and the fire extinguishing agent tank. Claim 6 A portable personal wildfire extinguishing device according to claim 5, further comprising an alarm means for notifying the occurrence of re-ignition when re-ignition occurs due to residual fire at the remote monitoring terminal. Claim 7 A portable personal wildfire extinguishing device according to claim 5, wherein the remote monitoring means further comprises at least one camera provided in the fire extinguishing agent tank to transmit surrounding images in real time to the remote monitoring terminal. Claim 8 A portable personal wildfire extinguishing device according to claim 2, further comprising a plurality of foldable fixing members on the bottom surface of the fire extinguishing agent tank capable of fixing the fire extinguishing agent tank to the ground. Claim 9 A portable personal wildfire extinguishing device according to claim 3, wherein the fire extinguishing gas nozzle opening / closing unit is composed of a solenoid valve. Claim 10 delete Claim 11 A portable personal wildfire extinguishing device according to claim 1, wherein the lifting means comprises: a stopper member provided on the upper side of the fire extinguishing material storage part; a lifting member supporting the dry ice from below; and an elastic member biasing the lifting member upward. Claim 12 A portable personal wildfire extinguishing device according to claim 1, wherein the pusher unit comprises: a linear actuator provided on the upper side of the fire extinguishing material storage unit; and a push member that reciprocates horizontally by the linear actuator and pushes the dry ice into the fire extinguishing gas generating unit. Claim 13 A portable personal wildfire extinguishing device according to claim 1 or claim 2, wherein the extinguishing gas injection unit comprises: an extension hose connected to a extinguishing gas injection port provided in the extinguishing gas generating unit; a nozzle member connected to the tip of the extension hose for injecting extinguishing gas; and an operating valve provided in the nozzle member for opening and closing the nozzle member. Claim 14 A portable personal wildfire extinguishing device according to claim 1, further comprising a extinguishing gas detection sensor for detecting the amount of extinguishing gas in the extinguishing gas generating unit, wherein the extinguishing raw material supply unit supplies the dry ice stored in the extinguishing raw material storage unit to the extinguishing gas generating unit when the amount of extinguishing gas detected by the extinguishing gas detection sensor is less than a preset reference amount. Claim 15 A portable personal wildfire extinguishing device according to claim 1 or claim 14, further comprising: a raw material detection sensor for detecting the presence or absence of dry ice in the fire extinguishing raw material storage unit; and an alarm unit for alarming when the raw material detection sensor detects that there is no dry ice. Claim 16 A portable personal wildfire extinguishing device according to claim 1, further comprising first and second automatic pressure regulating valves that maintain the pressure of the fire extinguishing material storage unit and the fire extinguishing gas generation unit, respectively, at or below a preset reference pressure. Claim 17 A portable personal wildfire extinguishing device according to claim 1 or claim 16, further comprising first and second pressure gauges for indicating the pressure of the fire extinguishing material storage unit and the fire extinguishing gas generation unit, respectively. Claim 18 A portable personal wildfire extinguishing device according to claim 1, wherein the fire extinguishing agent tank includes a viewing window that allows the amount of dry ice stored in the fire extinguishing material storage unit to be identified from the outside. Claim 19 A portable personal wildfire extinguishing device according to claim 1, wherein the vaporization-promoting solution is water filled in a predetermined amount in the extinguishing gas generating part. Claim 20 A portable personal wildfire extinguishing device according to claim 1, wherein the fire extinguishing agent tank is constructed by interposing an insulating material between inner and outer walls made of plastic material.

Images