JP6182373B2 - Fire fighting experience equipment - Google Patents

Description

  The present invention relates to a fire extinguishing experience apparatus used when experiencing fire extinguishing work.

  Generally, as described in Patent Document 1 below, a fire extinguishing experience apparatus includes an apparatus main body that contains an incombustible liquid such as water, and a gas pipe that discharges combustion gas into the liquid. The combustion gas released from the gas pipe into the liquid floats in the liquid. On the other hand, an ignition port is connected to the gas pipe, and the combustion gas released from the ignition port is ignited by a spark plug to become a seed fire. By this seed fire, the combustion gas that has floated on the liquid surface is ignited and becomes a main fire. Fire extinguishing drills are conducted for this main fire. When the main fire is extinguished by the fire drill or when the burning main fire is extinguished, the supply of the combustion gas to the gas pipe is stopped.

JP 2010-210878 A

  In the conventional fire extinguishing experience apparatus, when the fire extinguishing experience apparatus is used again after use, there is a problem that the main fire does not ignite. As a result of diligently pursuing this problem, it was found that the cause is as follows.

  That is, in the conventional fire extinguishing experience apparatus, the gas pipe is disposed below the liquid level. Therefore, the communication portion of the gas passage for connecting the ignition port to the gas pipe is also arranged below the liquid level. For this reason, when the supply of the combustion gas to the gas pipe is stopped, the liquid enters the gas pipe and the gas passage. In this state, when the combustion gas is supplied to the gas pipe in order to use the fire extinguishing experience device again, the liquid that has entered the gas passage is discharged from the ignition port and adheres to the electrode of the spark plug. For this reason, there was a problem that the seed fire did not ignite and eventually the main fire did not ignite.

The present invention has been made based on the above knowledge, the upper part is opened, the apparatus main body that contains a non-combustible liquid inside, the combustion gas is supplied inside, and the downstream end is immersed in the liquid. A gas pipe having a gas discharge portion that discharges the combustion gas into the liquid, an ignition port that is disposed above the liquid inside the apparatus body, and communicates with the gas pipe via a gas passage; An ignition plug for igniting the combustion gas discharged from the ignition port to serve as a seed fire, and the combustion gas released from the gas discharge portion into the liquid and floating from the liquid surface is ignited by the seed fire. In the fire extinguishing experience apparatus, the communication portion of the gas passage with respect to the gas pipe is disposed above the liquid.
In this case, the gas pipe has a main pipe portion having the gas discharge portion at the downstream end, and a branch pipe portion that branches from the upstream portion of the main pipe portion and extends upward. The ignition port is provided at the upper end of the branch pipe part, the inside of the branch pipe part is the gas passage, and the communication part of the gas passage with the inside of the main pipe part is from the liquid. It is desirable that it is disposed above.
Further, a through hole extending upward from the inner peripheral surface of the peripheral wall portion to the outer peripheral surface is formed in a portion of the peripheral wall portion of the gas pipe disposed above the liquid, and a lower end opening portion of the through hole is formed. It is desirable that the above-mentioned communication portion is used, and the upper end opening portion of the through-hole is the above-described ignition port. In this case, it is desirable that the gas pipe is constituted by a single pipe body.

  According to the present invention having the above-described characteristic configuration, since the communicating portion of the gas passage with the gas pipe is disposed above the liquid, the liquid enters the gas pipe after the supply of the combustion gas to the gas pipe is stopped. Even so, the liquid does not reach the communication portion of the gas passage with the gas pipe. Therefore, when the combustion gas is supplied to the gas pipe in order to use the fire extinguishing experience apparatus again, the liquid is not released from the ignition port, and the combustion gas is released from the ignition port. Then, the combustion gas is ignited by a spark plug and becomes a seed fire. By this seed fire, the combustion gas that has floated to the liquid surface is ignited and becomes a main fire.

FIG. 1 is a diagram showing the overall configuration of the first embodiment of the present invention. FIG. 2 is an enlarged cross-sectional view taken along line XX in FIG. FIG. 3 is a cross-sectional view showing an apparatus main body used in the embodiment. FIG. 4 is a cross-sectional view showing a state in which a case is attached to the apparatus main body. FIG. 5 is an enlarged cross-sectional view showing a part of the gas pipe used in the embodiment and an ignition gas pipe connected to the gas pipe. FIG. 6 is a diagram showing the overall configuration of the second embodiment of the present invention. FIG. 7 is an enlarged cross-sectional view showing a main part of the same embodiment.

The best mode for carrying out the present invention will be described below with reference to the drawings.
1 to 5 show a first embodiment of the present invention. The fire extinguishing experience apparatus A of this embodiment has an apparatus main body 1 as shown in FIGS. 1 and 2. The apparatus main body 1 is made of a metal plate excellent in heat resistance and corrosion resistance, such as stainless steel, and is formed in a rectangular parallelepiped box shape with an open top. The apparatus main body 1 may be formed in a box or container shape such as a square or a circle in plan view. Support plates 1a are respectively provided at both ends of the lower surface of the apparatus main body 1 in the longitudinal direction (left-right direction in FIG. 1). Therefore, the apparatus main body 1 is placed on the ground (not shown) or the like via the support plates 1a and 1a, and the space between the ground and the lower surface of the apparatus main body 1 is equal to the height of the support plate 1a. A gap is formed. The apparatus main body 1 may be placed directly on the ground or the like.

  Projecting plate portions 1b are respectively formed at the upper ends of the two side walls extending along the longitudinal direction of the apparatus main body 1. As shown in FIG. 2, the two projecting plate portions 1b and 1b are projected horizontally toward the inside of the apparatus main body 1 so as to approach each other. Therefore, the width of the open portion at the upper end of the apparatus main body 1 is narrower than the width of the apparatus main body 1 by the width of the two protruding plate portions 1b and 1b. The protruding plate portions 1b and 1b are not necessarily formed. When not formed, the entire upper part of the apparatus main body 1 is opened upward.

  As shown in FIGS. 2 and 3, window holes 1 c are formed in both side walls extending along the longitudinal direction of the apparatus main body 1. The window hole 1c is disposed at one end portion (right end portion in FIGS. 1 and 3) in the longitudinal direction of the side wall, but may be disposed at the other end portion. The window hole 1c is formed in a square shape, but may be formed in a rectangular shape or a circular shape. Further, the window hole 1c may be formed only on one side wall, or may be formed on the other end of both side walls in addition to the two window holes 1c and 1c. The window hole 1c has the following two functions. One function is to introduce external air into the apparatus main body 1. Another function is to determine the maximum water level of water (nonflammable liquid) H stored in the apparatus main body 1. Even when the water level of water H becomes temporarily higher than the lower end of the window hole 1c when water is injected into the apparatus main body 1, when the water injection is finished, the water H located above the lower end of the window hole 1c is exposed to the outside from the window hole 1c. The water level of the water H in the apparatus main body 1 coincides with the lower end of the window hole 1c. Thereby, the highest water level of the water H is defined.

  As shown in FIG. 1, a gas pipe 2 is provided on a side wall (a side wall arranged on the right side in FIG. 1) disposed at one end of the apparatus main body 1 in the longitudinal direction. The gas pipe 2 has a support pipe 3. The support tube 3 is horizontally arranged with its longitudinal direction in the same direction as the longitudinal direction of the apparatus main body 1. In addition, the support tube 3 is disposed above the lower end of the window hole 1 c, that is, above the water surface of the water H accommodated in the apparatus main body 1. The support tube 3 penetrates the side wall disposed at one end in the longitudinal direction of the apparatus main body 1 in the same direction. The support tube 3 is supported and fixed in a penetrating manner on the side wall by tightening nuts 4 and 4 screwed to both sides of the support tube 3 with the side wall interposed therebetween.

  An elbow 5, an outer vertical tube 6, and an elbow 7 are sequentially connected to an end portion of the support tube 3 located outside the apparatus main body 1. The elbow 7 is disposed below the water surface. In this embodiment, the elbow 7 is disposed at substantially the same height as a gas discharge pipe 12 described later. Therefore, the upstream end (elbow 7) of the gas pipe 2 is disposed below the water surface. The upstream end of the gas pipe 2 may be disposed above the water surface.

  An elbow 7 that is an upstream end portion of the gas pipe 2 is connected to the gas supply pipe T <b> 1 via a joint 8. And combustion gas is supplied to the gas pipe 2 from the gas supply apparatus G via the gas supply pipe T1. Details of this point will be described later.

  As shown in FIG. 5, a three-way branch tube 9 is connected and fixed via a joint 10 to an inner end portion of the support tube 3, that is, an end portion located inside the apparatus main body 1. Inside the three-way branch tube 9, a horizontal hole portion 9a extending in the horizontal direction and a vertical hole portion 9b penetrating the three-way branch tube 9 up and down are formed.

  The outer end of the horizontal hole 9a (the right end in FIG. 5) is open at the middle of the outer surface of the three-way branch pipe 9 in the vertical direction, and is connected to the support pipe 3 via a joint 10. Yes. Accordingly, the combustion gas is supplied to the horizontal hole portion 9a. The inner end portion of the horizontal hole portion 9a intersects the vertical hole portion 9b at the middle portion in the vertical direction. As a result, the vertical hole portion 9b is divided into an intersection portion 9c with the horizontal hole portion 9a, a lower hole portion 9d below the intersection portion 9c, and an upper hole portion 9e above the intersection portion 9c. . The intersecting portion 9c is arranged such that its lower end is located above the lower end of the window hole 1c. Therefore, the horizontal hole portion 9a and the upper hole portion 9e are also arranged above the window hole 1c.

  An upper end portion of an inner vertical tube 11 extending downward from the three-way branch tube 9 is screwed and fixed to the lower hole portion 9d. The lower end portion of the inner vertical pipe 11 is located in water, and one end portion of a gas discharge pipe (gas discharge section) 12 which is a downstream end portion of the gas pipe 2 is connected thereto via an elbow 13 and a joint 14. Has been. The gas discharge pipe 12 is horizontally arranged with its longitudinal direction in the same direction as the longitudinal direction of the apparatus main body 1. Although the gas discharge pipe 12 is formed in a straight line, it may be formed in a substantially U shape and folded back to one end side at the other end of the apparatus main body 1 or may have another shape. The other end of the gas release pipe 12 is supported on the bottom of the apparatus main body 1 via a bracket 1d.

  The gas discharge pipe 12 is formed with a large number of through holes (not shown) penetrating the peripheral wall portion in the radial direction. Therefore, when the combustion gas is supplied to the gas pipe 2, the combustion gas is released from the through holes of the gas release pipe 12 into the water. In addition, although the through-hole is arrange | positioned in the lower part of the gas discharge pipe 12, you may arrange | position in the intermediate part or upper part of an up-down direction.

  As shown in FIG.1 and FIG.5, the lower end part of the ignition member (branch pipe part) 15 is screwed and fixed to the upper hole part 9e. The ignition member 15 has a rod shape and extends upward from the upper end of the three-way branch pipe 9. The upper end surface of the ignition member 15 is positioned so as to be positioned between the upper end of the apparatus main body 1 and the water surface.

  A gas hole (gas passage) 15 a is formed in the ignition member 15. The gas hole 15 a extends from the lower end surface of the ignition member 15 to the upper end surface. Therefore, the lower end opening (communication portion) of the gas hole 15a communicates with the intersecting portion 9c, and when the combustion gas is supplied to the gas pipe 2, the combustion gas enters the gas hole 15a. The upper end opening of the gas hole 15a is an ignition port 15b. Accordingly, when the combustion gas is supplied to the gas hole 15a, the combustion gas is released upward from the ignition port 15b. As is clear from the above contents, the ignition pipe 15 constitutes the branch pipe part of the gas pipe 2, and the other part of the gas pipe 2 constitutes the main pipe part.

  As shown in FIG. 1, an ignition unit 16 is provided at one end of the apparatus main body 1 in the longitudinal direction. The ignition unit 16 has a cover 16a. The cover 16a is fixed to the upper part of one end of the apparatus main body 1 so that one end (left end in FIG. 1) covers one end (right end in FIG. 1) of the apparatus main body 1. One end portion of the cover 16a is opened downward, communicates with the inside of one end side of the apparatus main body 1 through the open portion, and faces the ignition port 15b vertically.

  A spark plug 16b is provided inside the cover 16a. The spark plug 16b is connected to the control unit CU via an igniter 16d. When an ignition operation such as pressing an ignition button (not shown) is performed on the controller C for controlling the control unit CU, an ignition current is supplied from the control unit CU to the spark plug 16b for a certain time (for example, 10). S) intermittently. Then, a spark discharge occurs between the pair of electrodes 16c and 16c (see FIG. 2) of the spark plug 16b.

  As is apparent from FIGS. 1 and 2, the pair of electrodes 16c, 16c of the spark plug 16b is disposed almost directly above the ignition port 15b. Therefore, when an ignition current is supplied to the spark plug 16b in a state where the combustion gas is released from the ignition port 15b, the combustion gas released from the ignition port 15b is connected between the electrodes 16c and 16c of the ignition plug 16b. It is ignited by spark discharge. And it continues to burn as a seed fire.

  The control unit CU controls not only spark discharge of the spark plug 16b but also supply of combustion gas by the gas supply device G. That is, the control unit CU is connected to the gas supply device G through the gas supply pipe T2. When the ignition operation is performed on the controller C (when the ignition button is pressed), the control unit CU seeds part of the combustion gas supplied from the gas supply device G simultaneously with the supply of the ignition current. Is supplied to the gas pipe 2 through the gas supply pipe T1. The combustion gas passes through the support pipe 3 and the three-way branch pipe 9 which are a part of the gas pipe 2, is supplied to the ignition port 15b of the ignition member 15, and is discharged upward therefrom. The combustion gas released upward is ignited by the spark plug 16b and continues to burn as a seed flame. A part of the combustion gas for the seed fire supplied into the three-way branch pipe 9 tends to go to the gas release pipe 12 side, but water pressure acts on the through hole of the gas release pipe 12. For this reason, the combustion gas for the seed fire does not actually flow to the gas discharge pipe 12 side.

  When the combustion operation such as pressing the combustion button (not shown) is performed on the controller C after the seed flame is burned, the combustion gas supplied from the gas supply device G to the control unit CU is burned into the gas pipe 2. A large amount of combustion gas is supplied through the gas supply pipe T1. A part of the combustion gas supplied to the gas pipe 2 is discharged from the ignition port 15b and continues to burn as a seed flame. Most of the combustion gas supplied to the gas pipe 2 flows through the three-way branch pipe 9 and the inner vertical pipe section 11 into the gas discharge pipe 12 that is the downstream end of the gas pipe 2. And it discharge | releases in water from each through-hole of the gas discharge pipe 12. FIG. The combustion gas released into the water from the gas release pipe 12 floats in the water and accumulates on the water surface. The combustion gas accumulated on the surface of the water is ignited and burned by a seed fire, and becomes a main fire for a fire fighting experience. During the combustion of the main fire, air flows into the apparatus main body 1 from the window hole 1c. Therefore, the main fire continues to burn smoothly without falling short of oxygen.

  After the ignition of the main fire, when a stop operation such as pressing a stop button (not shown) is performed on the controller C, the supply of the combustion gas from the control unit CU to the gas pipe 2 is stopped. Therefore, the supply of the combustion gas to the ignition port 15b and the gas discharge pipe 12 is stopped, and the main fire and the seed fire are extinguished.

  Note that the gas supply device G and the control unit CU are provided on a transport carriage (not shown) so that the transport can be easily performed. The controller C is connected to the control unit CU wirelessly or by wire. The gas supply device G, the control unit CU, and the controller C are not limited to the above configuration, and other known configurations may be adopted.

  Further, in this embodiment, the power supply to the spark plug 16b is stopped when a predetermined time elapses after the ignition button is pressed. However, while the ignition button of the controller C is continuously pressed, the ignition is stopped. You may comprise so that the electric current for spark discharge may be sent through the plug 16b continuously. Similarly, the combustion gas for the main fire may be continuously supplied from the gas supply device G while the combustion button is kept pressed. Furthermore, other known control methods may be employed.

  When performing a fire extinguishing experience using the fire extinguishing experience apparatus A having the above configuration, first, water H is put into the apparatus main body 1. Of course, the water level is the same as the lower end of the window hole 1c. Next, the ignition button of the controller C is pressed to ignite seeds in the ignition port 15b. After ignition of the ignition, the combustion button of the controller C is pressed to release the combustion gas from the gas discharge pipe 12 into the water H of the apparatus main body 1. The combustion gas released into the water rises to the surface of the water and is then ignited by a seed fire to become a main fire. Fire extinguishing experience person performs fire extinguishing work to extinguish main fire with fire extinguisher. After the end of the fire fighting experience, the stop button of the controller C is pressed to stop the supply of combustion gas from the gas supply device G to the gas pipe 2. This extinguishes the main fire and the seed fire.

  The above procedure is repeated when the main fire is burned in order to perform the fire extinguishing experience again after extinguishing the main fire and the seed fire. That is, the ignition button of the controller C is pressed to burn the seed fire. At this time, the seed fire is immediately ignited when the ignition button is pressed. That is, when the gas supply from the gas supply device G to the gas pipe 2 is stopped to extinguish the main fire and the seed fire, the water H in the apparatus main body 1 enters the gas discharge pipe 12 through the through hole. . The water H that has entered the gas discharge pipe 12 ascends in the inner vertical pipe 11 and travels upstream of the gas pipe 2. However, the intersecting portion 9 c of the three-way branch pipe 9 is located above the water surface in the apparatus main body 1. Therefore, the water H does not enter the intersection 9c. Furthermore, water H does not enter the horizontal hole 9a that opens in the middle portion in the vertical direction of the intersection 9c as well as the gas hole 15a communicating with the upper end of the intersection 9c. Therefore, when the ignition button is pressed, the water H is not released from the ignition port 15b, and the combustion gas for seeding is immediately released from the ignition port 15b. And it is ignited by the spark plug 16b and becomes a seed fire. Then, ignite the main fire. After the fire extinguishing experience again, the fire extinguishing experience apparatus A can be returned to the original state by sequentially pressing the combustion button and the stop button.

  6 and 7 show a second embodiment of the present invention. In the fire fighting experience apparatus B of this embodiment, a gas pipe 2B is used instead of the gas pipe 2. The gas pipe 2B is composed of a single pipe body, and a bent portion 2a having a substantially “U” shape is provided at the upstream end. The horizontal upper end portion of the bent portion 2 a is arranged with its longitudinal direction facing the longitudinal direction of the apparatus main body 1. In addition, the bent portion 2 a is disposed above the water surface of the water H accommodated in the apparatus main body 1. The upper end portion of the bent portion 2a arranged in this way is supported and fixed to the side wall in a state of passing through the side wall provided at one end of the device body 1 in the longitudinal direction of the device body 1 (left and right direction in FIG. 6). ing.

  A gas supply pipe T1 is connected via a joint 8 to an upstream end (right end in FIG. 6) of the gas pipe 2B. A gas discharge part 2b is formed at the downstream end of the gas pipe 2B. This gas discharge part 2b replaces the gas discharge pipe 12 of the above embodiment. Therefore, the gas discharge part 2b is arrange | positioned substantially horizontally in water, and many through-holes (not shown) are formed. And combustion gas is discharge | released in the water of the apparatus main body 1 from each through-hole.

  As shown in FIG. 7, a through hole (gas passage) 2c is formed at the horizontal upper end of the bent portion 2a. The through-hole 2c is disposed in the upper part of the peripheral wall part constituting the upper end part of the bent part 2a, and penetrates the upper part vertically from the inner peripheral surface to the outer peripheral surface. Therefore, the lower end opening (communication portion) of the through hole 2c communicates with the inside of the gas pipe 2B, and when the combustion gas is supplied to the gas pipe 2B, a part of the combustion gas enters the through hole 2c. It flows in from the lower end opening. The upper end opening of the through hole 2c is an ignition port 2d. The ignition port 2d is disposed slightly below the electrodes 16c and 16c of the ignition plug 16b slightly to the right in FIG. 6, but may be disposed directly below the electrodes 16c and 16c. In any case, since the ignition port 2d is disposed below the electrodes 16c and 16c, when the combustion gas is released from the ignition port 2d, the combustion gas is ignited by the ignition plug 16b and becomes a seed flame. Continue to burn.

  The configuration other than the above configuration of the fire fighting experience apparatus B is the same as the configuration of the fire fighting experience apparatus A. Therefore, the description of the configuration other than the above configuration is omitted. Further, the fire fighting experience apparatus B can perform a fire fighting experience in the same manner as the case of the fire fighting experience apparatus A described above.

In addition, this invention is not limited to said embodiment, In the range which does not deviate from the summary, various modifications can be employ | adopted.
For example, in the first embodiment, the horizontal hole 9a intersects with the vertical middle part of the vertical hole 9b, but the horizontal hole 9a is separated from the horizontal one end surface of the three-way branch pipe 9. You may form so that it may penetrate in an end surface. In that case, the lower end portion of the upper hole portion 9e is opened at the middle portion in the longitudinal direction of the horizontal hole portion 9a, and the upper end portion of the inner vertical pipe 11 is connected to the other end portion of the horizontal hole portion 9a. Therefore, the lower hole portion 9d becomes unnecessary.
Further, in the first embodiment, the ignition member 15 having the ignition port 15 b is screwed and fixed to the three-way branch tube 9, but an ignition port may be provided at the upper end opening of the three-way branch tube 9.

A Fire extinguishing experience device B Fire extinguishing experience device H Water (incombustible liquid)
DESCRIPTION OF SYMBOLS 1 Apparatus main body 2 Gas pipe 2B Gas pipe 2b Gas discharge | emission part 2c Through-hole (gas passage)
2d ignition port 12 gas release pipe (gas release part)
15a Gas hole (gas passage)
15b Ignition port 16b Spark plug

Claims (2)

An apparatus body that is open at the top and contains a non-flammable liquid therein;
A gas pipe having a gas discharge portion that is supplied with combustion gas and is immersed in the liquid at the downstream end to discharge the combustion gas into the liquid;
An ignition port disposed above the liquid in the apparatus main body and communicating with the gas pipe via a gas passage;
With an ignition plug that ignites the combustion gas released from the ignition port and uses it as a seed flame,
In the fire extinguishing experience device in which the combustion gas released from the gas discharge unit into the liquid and floated from the liquid surface is ignited by the seed fire,
The gas pipe has a main pipe part having the gas discharge part at a downstream end, and a branch pipe part that branches from the upstream part of the main pipe part and extends upward. ,
The ignition port is provided at an upper end portion of the branch pipe portion, the inside of the branch pipe portion is the gas passage, and a communication portion of the gas passage with the inside of the main pipe portion is disposed above the liquid. and fire extinguishing experience apparatus you, characterized in that are. An apparatus body that is open at the top and contains a non-flammable liquid therein;
A gas pipe having a gas discharge portion that is supplied with combustion gas and is immersed in the liquid at the downstream end to discharge the combustion gas into the liquid;
An ignition port disposed above the liquid in the apparatus main body and communicating with the gas pipe via a gas passage;
With an ignition plug that ignites the combustion gas released from the ignition port and uses it as a seed flame,
In the fire extinguishing experience device in which the combustion gas released from the gas discharge unit into the liquid and floated from the liquid surface is ignited by the seed fire,
The gas pipe is constituted by one pipe body ,
A through hole extending upward from the inner peripheral surface of the peripheral wall portion to the outer peripheral surface is formed in a portion of the peripheral wall portion of the gas pipe disposed above the liquid, and the through hole serves as the gas passage. the upper end opening of the through hole is the above ignition port, the through hole extinguishing experience device you characterized in that the lower end opening is arranged above the liquid.

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