JP4585874B2 - Gas equipment and its fire extinguishing system - Google Patents

Description

  The present invention relates to a gas device for burning gas supplied through a gas pipe and a system including the gas device, and more particularly to a gas device for extinguishing a fire generated in the gas device and a fire extinguishing system thereof.

  Conventionally, it is known that there are many kitchens as fire spots in general households, and overheating of tempura oil has been cited as the top cause of fires in this kitchen. In order to prevent such a situation, a gas stove in recent years is provided with an overheat prevention function that automatically detects when a temperature sensor detects that the temperature of the oil is about 250 ° C. or higher and automatically stops the gas.

  However, even when such an overheat prevention function is provided, the overheating of the tempura oil can occur in a very short time, which cannot be completely prevented and may lead to a fire. In addition, gas stoves that are not equipped with an overheat prevention function are still used, and fires due to overheating of oil have not been completely prevented.

  In view of such points, various fire extinguishing devices and fire extinguishing systems have been proposed for extinguishing fires in kitchens. Specifically, there is a sprinkler system, a fire extinguisher, or a range hood fire extinguishing device.

  Among these, the sprinkler system is a system in which fire extinguishing water supplied from a water pipe is automatically discharged from a sprinkler head when a fire is detected by a sprinkler head installed on the ceiling of a kitchen. In addition, there are various fire extinguishers, which are installed above a fire extinguisher that discharges this fire extinguishing agent by manually operating the nozzle of a tank filled with extinguishing agent, a gas stove, etc. A fire extinguisher that automatically releases a fire extinguishing liquid upon melting or a fire extinguishing apparatus that destroys a glass container filled with the fire extinguishing liquid by hitting and releases the fire extinguishing liquid has been put into practical use (for example, Patent Document 1). reference). In addition, the range hood fire extinguishing device drops the ventilation range hood above the gas stove in the event of a fire, or drops the fire protection cloth built into the range hood to form a fire extinguishing agent discharge section. It is a device that extinguishes fire by discharging a fire extinguishing agent into the discharge section.

JP 2004-242993 A

  However, all of these various fire extinguishing devices and fire extinguishing systems have their merits and demerits. For example, the sprinkler system has the advantage that the fire can be extinguished automatically and there is no limit to the amount of fire water discharged, but the installation cost is high due to the large equipment required to install a water supply pipe. At the same time, it is difficult to install the existing house and change the layout, and once it is activated, there is a disadvantage that water is discharged extensively and water loss is large.

  In addition, for fire extinguishers, there is the advantage that the installation is simple and the range of contamination by fire extinguishing agents is relatively narrow, but since it must be operated manually, it does not function in the absence of people, Even if there are people, there are disadvantages that fire extinguishing cannot be completely performed depending on the skill level of the operation, or that the extinguishing range is relatively narrow due to the limited capacity of the extinguishing agent.

  In addition, the range hood fire extinguisher has the advantage of being able to extinguish automatically, but the fire protection compartment formed by the range hood and fire retardant cloth has a relatively large volume, so there is not enough fire extinguisher and the fire is completely extinguished. There was a possibility that could not be extinguished.

  This invention is made in view of the above, Comprising: It aims at providing the gas apparatus which can be installed at low cost, and can extinguish a fire reliably with a small amount of fire extinguishing agents, and its fire extinguishing system. .

In order to solve the above-described problems and achieve the object, a fire extinguishing system for a gas appliance according to claim 1 is a fire extinguishing system for extinguishing a fire generated in a gas appliance, wherein gas is supplied to the gas appliance. A gas pipe for supplying, a crater for burning the gas supplied in the gas pipe in the gas device, a fire extinguishing pipe connected to the gas pipe for supplying a fire extinguishing agent, and the gas A switching means for switching to introduce a fire extinguishing agent supplied by the fire extinguishing pipe into the gas pipe; and a switching means arranged above the gas appliance, and disposed at a connecting position between the pipe and the fire extinguishing pipe. A fire cloth releasing means capable of discharging a fire cloth for forming; and controlling the fire cloth releasing means to release the fire cloth, and controlling the switching means to introduce the fire extinguishing agent into the gas pipe. The extinguishing agent And wherein from the crater in the compartment out that a starting means for releasing the extinguishing agent.

Further, a gas equipment fire extinguishing system according to claim 2 is the gas equipment fire extinguishing system according to claim 1, further comprising a fire judging means for judging whether or not a fire has occurred in the gas equipment, When it is determined by the fire determination means that a fire has occurred in the gas appliance, the fire cloth is discharged by controlling the fire cloth discharge means, and the fire extinguishing agent is discharged by controlling the switching means. It introduce | transduces into a pipe | tube, It discharge | releases the said extinguishing agent from the said crater in the said extinguishing agent discharge | release zone, It is characterized by the above-mentioned .

Moreover, fire extinguishing system for a gas appliance according to claim 3, in fire extinguishing systems Gas equipment mounting serial to claim 2, comprising a fire detection means for detecting the occurrence of a fire in the gas appliance, the fire determining means When the occurrence of a fire is detected by the fire detection means, it is determined that a fire has occurred in the gas appliance .

A gas equipment fire extinguishing system according to claim 4 is the gas equipment fire extinguishing system according to claim 2 or 3 , further comprising temperature detecting means for detecting a heating temperature at the crater of the gas equipment, The determining means determines that a fire has occurred in the gas appliance when the temperature detecting means detects that the heating temperature has become equal to or higher than a predetermined temperature .

Further, a gas equipment fire extinguishing system according to claim 5 is the gas equipment fire extinguishing system according to any one of claims 2 to 4, further comprising a gas shut-off means for shutting off the supply of gas in the gas pipe. The starting means controls the gas shut-off means to shut off the gas supply when the fire judging means judges that a fire has occurred in the gas appliance .

Moreover, fire extinguishing system for a gas appliance according to claim 6, in extinguishing systems Gas equipment mounting serial to claim 1, wherein the activation means, when the manual operation is performed, control the fire fabric discharge means The fire cloth is discharged, and the switching means is controlled to introduce the fire extinguishing agent into the gas pipe, and the fire extinguishing agent is discharged from the crater into the fire extinguishing agent discharge section .

  According to this invention, the release of the extinguishing agent is activated by the activation means, and this extinguishing agent is released from the fire extinguishing port of the gas appliance, so that the fire that has occurred in the gas appliance can be reliably extinguished.

  Moreover, according to this invention, since a fire extinguisher is discharge | released when a fire is detected by the fire detection means, the fire extinguishing of gas equipment can be performed automatically. In addition, fire extinguishing agent release can be activated using a fire detector installed in a general house, and the installation cost of the fire extinguishing system can be further reduced.

  Moreover, according to this invention, since a fire extinguisher is discharge | released based on the heating temperature detected by the temperature detection means of gas equipment, fire extinguishing of gas equipment can be performed automatically. Moreover, the extinguishing agent release can be activated by using a temperature sensor for preventing overheating of existing gas equipment, and the installation cost of the fire extinguishing system can be further reduced.

  Moreover, according to this invention, since a fire extinguisher can be discharge | released with a switch means, when a user discovers a fire, it can extinguish rapidly. In particular, the temperature detection part and fire detector of the gas stove can be omitted, and the installation cost of the fire extinguishing system can be further reduced.

  Further, according to the present invention, the fire extinguisher can be introduced into the gas pipe and the fire extinguisher can be discharged from the crater, so that it is not necessary to make any special modifications to the piping path or the gas stove, and the fire extinguishing system can be easily installed. In addition, this installation cost can be further reduced.

  Further, according to the present invention, since the gas supply is shut off by controlling the gas shut-off means, the supply of fire energy is cut off to prompt the fire extinguishing, and the gas continues to be supplied even after the fire is extinguished and the gas poisoning or gas Eliminate the risk of explosion.

  Moreover, according to this invention, since a fire extinguisher is discharge | released in the fire extinguisher discharge | release division formed with the fireproof cloth, fire extinguishing can be promoted by the suffocation effect. In addition, the fire extinguishing agent can be prevented from being scattered, and the fire extinguishing agent can be concentrated in a narrow range to improve the fire extinguishing effect. Therefore, even when the amount of the extinguishing agent is limited, a small amount of the extinguishing agent can be efficiently discharged to extinguish the fire.

  Embodiments of a heat sensor according to the present invention will be described below in detail with reference to the accompanying drawings. First, [I] the basic configuration of the present invention will be described, then [II] an embodiment of the present invention will be described, and [III] Finally, a modification to the embodiment of the present invention will be described.

[I] Basic Configuration of the Present Invention First, the basic configuration of the present invention will be described. The basic feature of the present invention is that the gas appliance is provided with a function of releasing a fire extinguishing agent. Although the specific form of a gas apparatus is arbitrary, below, it demonstrates targeting the gas stove used in order to cook in a kitchen. As a discharge form of this extinguishing agent, there are one in which the extinguishing agent is directly discharged from a crater for burning gas, and one in which the extinguishing agent is discharged from a fire extinguishing nozzle provided separately from the crater. In addition, triggers that prompt the release of fire extinguishing agents include temperature sensors provided on gas stoves to prevent overheating, fire detectors that detect the occurrence of fires, or operations for manually instructing the release of fire extinguishing agents. Buttons can be mentioned.

  In addition, various devices are controlled in conjunction with the release of the fire extinguishing agent from the gas stove. For example, a gas microcomputer meter that shuts off the gas supply in the gas pipe is operated, or a three-way valve connected to the gas pipe is operated to introduce a fire extinguisher into the gas pipe. Alternatively, by operating a parachute type fire extinguishing device, the upper portion of the gas stove is covered with a fireproof cloth to form a fire extinguisher discharge section, and the fire extinguisher is discharged into the fire extinguisher discharge section.

[II] Embodiments of the Present Invention Next, embodiments of the heat sensor according to the present invention will be described. However, the present invention is not limited by these embodiments.

[Embodiment 1]
First, the gas equipment fire extinguishing system and the gas equipment according to Embodiment 1 of the present invention will be described. First, the configuration of the fire extinguishing system according to the first embodiment will be described, and then the fire extinguishing control process in the fire extinguishing system will be described.

(About the configuration of the fire extinguishing system)
FIG. 1 is a front view of the vicinity of a kitchen provided with a fire extinguishing system for gas equipment according to the first embodiment. As shown in FIG. 1, the fire extinguishing system according to the first embodiment includes a gas stove 1 as a gas appliance, a gas microcomputer meter 10, a fire extinguisher tank 20, a fire detector 30, a parachute fire extinguishing device 40, and a fire extinguisher. And a control panel 50.

  Among these, the gas stove 1 is generally configured in the same manner as a conventional gas stove, and includes two craters 2, in which the gas supplied through the gas pipe 3 is burned. Let The crater 2 also functions as a fire pit for releasing a fire extinguishing agent as will be described later.

  The gas stove 1 is provided with a temperature detection unit 4 (shown only in FIG. 2 described later) for detecting the heating temperature in the crater 2 in order to achieve the same overheating prevention function as in the prior art. The temperature detection unit 4 can be configured by using a known technique. For example, the temperature detection unit 4 includes a temperature sensor installed inside the virtues 5, and the temperature sensor is brought into contact with the bottom surface of the cooking utensil placed on the virtues 5. It measures temperature and corresponds to the temperature detection means in the claims. The temperature measured in this manner is input to a control unit (not shown) provided in the gas stove 1, and the control unit detects that the measured temperature is 250 below a predetermined threshold value (for example, 360 degrees below the oil ignition temperature of 360 degrees). (Hereinafter referred to as the overheat prevention threshold), the gas supply is stopped to prevent a fire from occurring.

  Moreover, the gas microcomputer meter 10 cuts off the supply of gas through the gas pipe 3 when receiving a gas cut-off signal, and corresponds to the gas cut-off means in the claims.

  The fire extinguisher tank 20 is a filling means for releasably filling an arbitrary fire extinguisher. As the fire extinguisher, for example, a powder fire extinguisher for oil fires mainly composed of ammonium dihydrogen phosphate is filled. ing. This fire extinguishing agent tank 20 is connected to a three-way valve 22 via a fire extinguishing agent pipe 21. The three-way valve 22 is a switching valve that enables introduction of the extinguishing agent supplied through the extinguishing agent pipe 21 into the gas pipe 3, and corresponds to switching means in the claims. The fire extinguisher tank 20 is normally open and closed by a three-way valve 22. When the three-way valve 22 is activated, the fire extinguisher inside the tank is automatically supplied to the gas pipe 3. To be pumped. However, in order to prevent the erroneous release of the fire extinguisher more reliably, the fire extinguisher tank 20 may be opened by a control signal from the fire extinguishing control panel 50 described later. Further, the three-way valve 22 can be arranged at an arbitrary position of the gas pipe 3, but it is preferable to arrange the three-way valve 22 at a position as close as possible to the gas stove 1 in order to reduce the discharge amount of the extinguishing agent.

  The fire detector 30 detects a fire and corresponds to the fire detection means in the claims. Although the principle of this fire detection is arbitrary, for example, a fire can be detected by detecting flames by detecting a specific wavelength, detecting smoke by a scattered light type or a dimming type, or detecting heat by a thermal detection element such as a thermistor. Can be detected. The fire detector 30 is disposed at an arbitrary position where a fire generated in the gas stove 1 can be detected. For example, in the first embodiment, the fire detector 30 is installed on a ceiling surface obliquely above the gas stove 1.

  Moreover, the parachute-type fire extinguishing apparatus 40 makes fire extinguishing agent discharge | emission area | region the inside space of this fireproof cloth 41 by dropping the fireproof cloth 41 (illustrated only in FIGS. 5-7). Corresponds to fire cloth discharge means. The parachute fire extinguishing device 40 is installed on the wall surface above the gas stove 1.

  The fire extinguishing control panel 50 controls each part of the fire extinguishing system, and corresponds to the starting means and the fire extinguishing control means in the claims. FIG. 2 is a block diagram functionally conceptually showing the electrical configuration of the fire extinguishing system. As shown in FIG. 2, the fire extinguishing control panel 50 includes a control unit 51, a memory 52, and a timer 53. The temperature detection unit 4 of the gas stove 1, the gas microcomputer meter 10, the three-way valve 22, The parachute fire extinguishing device 40 and the fire detector 30 are electrically connected.

  Among these, the memory 52 is a storage means for storing information necessary for executing various processes in the fire-extinguishing control panel 50 in a nonvolatile manner, and in particular, the temperature detected by the temperature detector of the gas stove 1. A predetermined threshold value (for example, a temperature higher than the above-described overheat prevention threshold value, 360 degrees, hereinafter referred to as a fire determination threshold value) is stored. In addition, the timer 53 performs time measurement necessary for executing various processes in the fire extinguishing control panel 50, and in particular, after the parachute fire extinguishing device 40 is started, the fire cloth 41 falls and the fire extinguishing agent is dropped. Time until a discharge section is formed (hereinafter referred to as a discharge section formation time) is counted.

  The control unit 51 is a control means for controlling each part of the fire extinguishing control panel 50, and includes, for example, a CPU (Central Processing Unit) that loads and executes a program stored in the memory 52. Yes. The control unit 51 includes a fire determination unit 54 and a fire extinguishing control unit 55 in terms of functional concept. Among these, the fire determination unit 54 is a fire determination unit that determines whether or not a fire has occurred in the gas stove 1 based on outputs from the fire detector 30 and the temperature detection unit 4 of the gas stove 1. The fire extinguishing control unit 55 is a fire extinguishing control unit that executes predetermined control necessary for extinguishing fire when the fire determining unit 54 determines that a fire has occurred. Specific processing contents of these units will be described later. In addition, the fire extinguishing control panel 50 may be arrange | positioned in places other than illustration, for example, may be installed in the inside of the storage shelf of a kitchen.

(Fire extinguishing control process of fire extinguishing system)
Next, fire extinguishing control processing in this fire extinguishing system will be described. FIG. 3 is a flowchart of the fire extinguishing control process, and FIGS. 4 to 7 are diagrams showing a process from the fire state to the fire extinguishing state. First, as shown in FIG. 3, the fire determination unit 54 of the fire extinguishing control panel 50 monitors whether or not a fire alarm signal is input from the fire detector 30 (step SA-1).

  In addition, the fire determination unit 54 monitors whether or not the temperature acquired by the temperature output signal from the temperature detection unit 4 of the gas stove 1 exceeds the fire determination threshold value stored in the memory 52 (step SA). -2). Note that the fire determination threshold is used in this way because the gas supply may not be stopped for some reason even when the overheating temperature in the gas stove 1 exceeds the overheating prevention threshold, and the fire determination threshold has been reached. In this case, it is determined that there is a high possibility that the top plastic oil reaches the ignition point.

  Then, as shown in FIG. 4, when a fire occurs from the top pan, the fire determination unit 54 receives a fire alarm signal from the fire detector 30 or outputs a temperature output from the temperature detection unit 4. When the temperature acquired by the signal exceeds the fire determination threshold, it is determined that a fire has occurred in the gas stove 1, and a signal indicating that is output to the fire extinguishing control unit 55.

  Upon receiving this signal, the fire extinguishing control unit 55 first outputs a cutoff signal to the gas microcomputer meter 10 to cause the gas microcomputer meter 10 to cut off the gas supply, as shown in FIG. 3 (step SA-3). In the gas microcomputer meter 10 that has received this shut-off signal, the gas supply by the gas pipe 3 is shut off. This cuts off the supply of fire energy and prompts extinction, and eliminates the danger of gas poisoning and gas explosions even after the fire is extinguished.

  Next, the fire extinguishing control unit 55 outputs a start signal to the parachute fire extinguishing device 40, thereby dropping the fire protection cloth 41 from the parachute fire extinguishing device 40 (step SA-4). The parachute fire extinguishing device 40 that has received this activation signal opens the door 42 and drops the fire protection cloth 41 as shown in FIG. Further, as shown in FIG. 3, the fire extinguishing control unit 55 outputs a start signal to the parachute fire extinguisher 40, and at the same time starts counting by the timer 53, and monitors whether or not the discharge section forming time has elapsed (step S1). SA-5). The reason for waiting for the elapse of the discharge section formation time is that if the fire extinguisher is released before the fire cloth 41 is dropped, the fire extinguisher may be scattered in the kitchen and cause its contamination. This is because the fire extinguishing agent is released after the fire cloth 41 has been dropped.

  Then, when the discharge section forming time has elapsed, as shown in FIG. 6, the upper portion of the gas stove 1 is substantially covered with the fireproof cloth 41 that has dropped, so that the fire extinguishing agent discharge section 43 as an internal space of the fireproof cloth 41. Is formed. At this time, as shown in FIG. 3, the fire extinguishing control unit 55 outputs a switching signal to the three-way valve 22 to cause the three-way valve 22 to perform pipe switching (step SA-6). As a result, the extinguishing agent from the extinguishing agent tank 20 is introduced into the gas pipe 3 through the extinguishing agent pipe 21 and the three-way valve 22 and is discharged from the crater 2 of the gas stove 1. As a result, as shown in FIG. 7, the fire extinguisher is discharged into the fire extinguisher discharge section 43 formed by the fireproof cloth 41, and the fire extinguisher also goes around the top of the top pan so that the fire is extinguished. . That is, in the first embodiment, the crater 2 also serves as a fire extinguisher that releases a fire extinguishing agent. This completes the fire extinguishing control process. Thereafter, when the fire extinguishing is artificially confirmed, the fire cloth 41 is accommodated again in the parachute fire extinguishing device 40, the gas microcomputer meter 10 is restored by the gas operator, and the gas supply is performed by returning the three-way valve 22. Is resumed.

(Effect of Embodiment 1)
As described above, according to the first embodiment, the presence or absence of a fire is determined based on the heating temperature of the gas stove 1 or the detection result of the fire detector 30, and the fire extinguisher is automatically released in the event of a fire to extinguish the fire. Is done. In particular, by determining that a fire has occurred when the heating temperature of the gas stove 1 exceeds the fire determination threshold value, it is possible to more reliably detect the occurrence of a fire using the existing overheat prevention function of the gas stove 1. Since the extinguishing agent can be discharged through the existing gas pipe 3 and the crater 2, it is not necessary to specially modify the piping path and the gas stove 1, and the installation cost of the fire extinguishing system can be reduced. In addition, by first shutting off the gas supply, the supply of fire energy is cut off to promote fire extinguishing, and the danger of causing gas poisoning and gas explosion by continuing to supply gas even after fire extinguishing is eliminated. Moreover, since the fire extinguishing agent discharge | emission area 43 is formed in the fireproof cloth 41, fire extinguishing can be promoted by the suffocation effect. Moreover, since the extinguishing agent is discharged into the extinguishing agent discharge section 43, it is possible to prevent the extinguishing agent from being scattered in the kitchen or the like, and to concentrate the extinguishing agent on the fire source, thereby improving the extinguishing effect. Therefore, even when the amount of the extinguishing agent is limited, a small amount of the extinguishing agent can be efficiently discharged to extinguish the fire. In addition, by discharging the extinguishing agent after waiting for the elapse of the discharge section forming time, the extinguishing agent can be more reliably discharged into the extinguishing agent discharge section 43.

[Embodiment 2]
Next, a second embodiment of the present invention will be described. A gas equipment fire extinguishing system and a gas equipment according to Embodiment 2 will be described. The fire extinguishing system according to the second embodiment is configured more simply than the fire extinguishing system according to the first embodiment by manually starting the release of the extinguishing agent. First, the configuration of the fire extinguishing system according to the first embodiment will be described, and then the fire extinguishing control process in the fire extinguishing system will be described. In addition, about the structure substantially the same as Embodiment 1, the code | symbol same as used in Embodiment 1 is attached | subjected as needed, and the description is abbreviate | omitted.

(About the configuration of the fire extinguishing system)
FIG. 8 is a front view of the vicinity of a kitchen provided with a fire extinguishing system for gas equipment according to the second embodiment, and FIG. 9 is a perspective view of the gas stove in FIG. As shown in FIG. 8, the fire extinguishing system according to the second embodiment includes a gas stove 60, a gas microcomputer meter 10, and a fire extinguishing agent tank 20.

  As shown in FIG. 9, the gas stove 60 includes a pair of fire extinguishing nozzles 61 and a start switch 62.

  Among these, each fire extinguishing nozzle 61 is for discharging | emitting a fire extinguishing agent, and respond | corresponds to the fire extinguisher and fire extinguishing nozzle in a claim. Specifically, each fire-extinguishing nozzle 61 is installed at a position where it does not become an obstacle for cooking or the like, that is, on the upper surface on the back side of the gas stove 60. Each fire extinguishing nozzle 61 is formed so as to extend upward, and is provided with a first discharge port 63 for discharging a fire extinguishing agent toward the crater 2 at a substantially intermediate position, and at its upper end position, five virtues. And a second discharge port 64 for discharging a fire extinguishing agent toward the upper surface of a cooking utensil such as a top pan placed on 5. The pair of fire-extinguishing nozzles 61 are connected to the fire-extinguishing agent tank 20 in FIG. 1 via a fire-extinguishing agent pipe 65, an on-off valve 66, and a fire-extinguishing agent pipe 67 in this order. In addition, about the shape and arrangement position of the fire extinguishing nozzle 61, the path | route of a fire extinguishing agent piping, etc. can be changed arbitrarily.

  The activation switch 62 is for manually activating the extinguishing agent and corresponds to the switch means in the claims. The start switch 62 is provided as a push button on the front surface of the gas stove 60. However, the specific structure and arrangement position of the activation switch 62 can be arbitrarily changed.

(Fire extinguishing control process of fire extinguishing system)
Next, fire extinguishing control processing in this fire extinguishing system will be described. When a user who has found that a fire has occurred in the gas stove 60 presses the start switch 62, an open signal is output from the start switch 62 to the on-off valve 66. The on-off valve 66 that has received this open signal introduces the fire extinguishing agent from the fire extinguishing agent tank 20 into the fire extinguishing nozzle 61. Thereby, a fire extinguisher is discharge | released from the 1st discharge port 63 and the 2nd discharge port 64 of the fire extinguishing nozzle 61, respectively.

(Effect of Embodiment 2)
Thus, according to this Embodiment 2, the temperature detection part 4 and the fire detector 30 like Embodiment 1 can be abbreviate | omitted by discharging | emitting a fire extinguisher by a user's manual operation. Moreover, since the fire extinguishing agent can be directly discharged toward the crater 2 and the cooking utensil by the fire extinguishing nozzle 61, the extinguishing agent can be prevented from being scattered without forming the fire extinguishing agent discharge section 43 as in the first embodiment. Moreover, the three-way valve 22 as in Embodiment 1 can be omitted by discharging the extinguishing agent through the extinguishing nozzle and the extinguishing agent piping instead of the gas pipe 3.

[III] Modifications to Embodiments Although the embodiments of the present invention have been described above, the specific configuration and means of the present invention are within the scope of the technical idea of each invention described in the claims. Can be arbitrarily modified and improved. Hereinafter, such a modification will be described.

(About problems to be solved and effects of the invention)
The problems to be solved by the invention and the effects of the invention are not limited to the above-described contents, and the present invention solves the problems not described above or produces the effects not described above. In addition, only a part of the described problems may be solved or only a part of the described effects may be achieved. For example, compared with the conventional fire extinguishing system and fire extinguishing apparatus, even when the problem of installation cost and the certainty of fire extinguishing cannot be solved completely, the problem of the present invention is achieved as long as these are slightly improved. Yes.

(About the trigger to release fire extinguishing agent)
In the first embodiment, the presence or absence of a fire is determined using both the temperature detection unit 4 and the fire detector 10, but either one may be omitted. Alternatively, the presence or absence of a fire may be determined by interlocking with any other method or device, or by ANDing two or more methods or devices. For example, the fire extinguisher may be released only when AND of the fire alarm signal of the smoke detector and the heat detector is obtained. Moreover, you may provide both the temperature detection part 4 and fire detector 10 of Embodiment 1, and the manual switch 62 of Embodiment 2. FIG.

(About the extinguishing agent release mechanism)
Further, the specific mechanism for releasing the fire extinguishing agent can take various forms. For example, one of the first discharge port 63 and the second discharge port 64 of the fire extinguishing nozzle 61 may be omitted, or more discharge ports may be provided. Further, the fire extinguishing nozzle 61 may be incorporated in the virtues 5 or disposed near the crater 2. Moreover, the fire extinguishing nozzle 61 may be provided in a ceiling or a wall surface, and a fire extinguisher may be discharge | released toward the crater 2 or a cooking appliance from here. Alternatively, only one fire extinguishing nozzle 61 is provided near the center of the gas stoves 1 and 60, and a detector (for example, an infrared detector) for specifying the fire occurrence position is provided, and the fire occurrence specified by this detector The fire extinguishing nozzle 61 may be oriented at a position by rotation or the like to discharge the fire extinguishing agent.

  This invention reduces the installation cost of a fire extinguishing system, reduces the quantity of fire extinguishing agent required for fire extinguishing, or improves the certainty of fire extinguishing with a fire extinguishing agent.

It is a front view of the kitchen periphery provided with the fire extinguishing system of the gas equipment which concerns on Embodiment 1 of this invention. It is a block diagram which shows the electrical structure of a fire extinguishing system functionally conceptually. It is a flowchart of a fire extinguishing control process. It is a figure which shows the process from a fire state to a fire extinguishing state. It is a figure which shows the next process of FIG. It is a figure which shows the next process of FIG. It is a figure which shows the next process of FIG. It is a front view of the kitchen periphery provided with the fire extinguishing system of the gas equipment which concerns on Embodiment 2 of this invention. It is a perspective view of the gas stove of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,60 Gas stove 2 Tinder 3 Gas pipe 4 Temperature detection part 5 Gotoku 10 Gas microcomputer meter 20 Fire extinguisher tank 21, 65, 67 Fire extinguisher piping 22 Three-way valve 30 Fire detector 40 Parachute type fire extinguisher 41 Fire cloth 50 Fire extinguishing control panel REFERENCE SIGNS LIST 51 Control unit 52 Memory 53 Timer 54 Fire determination unit 55 Fire extinguishing control unit 61 Fire extinguishing nozzle 62 Start switch 63 First discharge port 64 Second discharge port 65 Fire extinguisher piping 66 Open / close valve

Claims (6)

A fire extinguishing system for extinguishing a fire occurring in a gas appliance,
A gas pipe for supplying gas to the gas appliance;
A crater for burning the gas supplied in the gas pipe in the gas appliance;
A fire extinguishing pipe connected to the gas pipe for supplying a fire extinguishing agent;
A switching means disposed at a connection position between the gas pipe and the fire extinguishing pipe, for switching to introduce the fire extinguishing agent supplied by the fire extinguishing pipe into the gas pipe;
A fire cloth discharging means disposed above the gas appliance and capable of discharging a fire cloth for forming a fire extinguishing agent discharge section;
The fire cloth is discharged by controlling the fire cloth discharge means, and the fire extinguishing agent is introduced into the gas pipe by controlling the switching means, and the fire extinguisher is discharged from the crater into the fire extinguishing agent discharge section. An activation means for causing
A fire extinguishing system for gas equipment, characterized by comprising: Comprising fire determining means for determining whether or not a fire has occurred in the gas appliance;
The starting means controls the fire cloth releasing means to release the fire cloth when the fire determining means determines that a fire has occurred in the gas appliance, and controls the switching means to control the switching means. Introducing a fire extinguisher into the gas pipe and releasing the fire extinguisher from the crater into the fire extinguishing agent discharge section ;
The fire extinguishing system for gas equipment according to claim 1. Comprising fire detection means for detecting the occurrence of a fire in the gas appliance;
The fire determining means determines that a fire has occurred in the gas appliance when a fire occurrence is detected in the fire detecting means;
Extinguishing system of the serial mounting of gas appliances to claim 2, wherein. Temperature detecting means for detecting the heating temperature at the crater of the gas appliance,
The fire determining means determines that a fire has occurred in the gas appliance when the temperature detecting means detects that the heating temperature has become equal to or higher than a predetermined temperature;
The fire extinguishing system for gas equipment according to claim 2 or 3 , characterized in that. A gas shut-off means for shutting off the gas supply in the gas pipe;
The starting means is configured to control the gas shut-off means to shut off the gas supply when the fire judging means determines that a fire has occurred in the gas appliance;
The fire extinguishing system for a gas appliance according to any one of claims 2 to 4, wherein The starting means, when a manual operation is performed, controls the fire cloth discharging means to discharge the fire cloth, and controls the switching means to introduce the fire extinguishing agent into the gas pipe, Discharging the extinguishing agent from the crater into the extinguishing agent discharge section;
Extinguishing system of the serial mounting of gas appliances to claim 1, wherein the.

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