JP2018038640A - Extinguishant tank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an extinguishant tank capable of highly efficiently and stably discharging extinguishant or the like in an inner bag and causing little trouble.SOLUTION: An extinguishant tank 1-1 includes an inner bag 9 provided inside a tank body 2 and filled with extinguishant, fitted to a connection part 5 provided inside a first lid part 3, by an inner bag connection opening 10. The inner bag 9 includes, in the inside thereof, a guide tube 8 having a spiral opening part 8a on a peripheral wall, detachably attached to an opening 4 of a first lid part 3 and fitted to a lower side of a second lid part 6. Pressure gas or the like fills the inside of the tank body 2 from a distribution hole 11.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a fire extinguishing agent tank that stores a fire extinguishing agent inside and discharges the extinguishing agent to the outside by a pressure gas or the like.

  Large fire extinguishing agent tanks and small portable extinguishing agent tanks installed in fire extinguishing equipment are provided with an inner bag filled with foam extinguishing agent or gel-containing extinguishing agent in the extinguishing agent tank. A fire extinguishing agent tank of a type in which a pressure gas or the like is filled between the inner wall of the tank and the inner bag and the extinguishing agent in the inner bag is pushed out by the pressure is adopted. In this type of extinguishing agent tank, in order to efficiently discharge the extinguishing agent in the inner bag, a guide pipe is provided in the inner bag to guide the extinguishing agent to the outside (see Patent Document 1). However, in a general induction tube having an opening only at the distal end, the inner bag may stick to the opening when the inner bag pressed by pressure gas or the like contracts and the fire extinguishing agent is released. . If it does so, the opening part was obstruct | occluded and discharge | release of the extinguishing agent stopped on the way, and there existed a problem that all the extinguishing agents etc. in an inner bag could not be used. Even in a guide tube having a plurality of holes or slits on the peripheral wall of the guide tube, the inner bag may stick to the holes and slits, and the same problem has occurred.

  In addition, as described above, in the case of a method in which the inner bag is pressed with an external force such as pressure gas and the internal extinguishing agent is discharged by compression, the external force caused by the pressure difference between the inside and outside and the external force generated when the inner bag sticks to the guide pipe The guide tube may be bent, the guide tube may be bent, or the inner bag may be broken at the portion in contact with the guide tube. As described above, the current extinguishing agent tank has a problem that the extinguishing agent cannot be stably released and a failure is likely to occur due to breakage of the guide tube or the inner bag.

JP2015-104391A

  Therefore, an object of the present invention is to provide a fire extinguisher tank that can efficiently and stably discharge a fire extinguisher or the like in an inner bag and has few failures.

  The present invention is for solving the above-described problems and has the following configuration.

(1) The present invention provides a tank body, an inner bag provided inside the tank body, and a fire extinguishing agent that is inserted into the inner bag and fills the inner bag. A fire extinguisher tank provided with a guide pipe, wherein the guide pipe is provided with a spiral continuous opening.

  According to the present invention, even if the inner bag contracts and sticks to the guide tube, it does not block all the continuous spiral openings provided in the guide tube. Therefore, all the extinguishing agents filled in the inner bag can be discharged, and the extinguishing agents and the like can be discharged stably and efficiently. In addition, the frequency of clogging of openings can be reduced particularly for high viscosity extinguishing agents having thixotropic properties. Furthermore, since the guide tube deforms flexibly following the shrinkage of the inner bag due to being formed in a spiral shape, the guide tube and the inner bag are not easily damaged, and if there is no external force due to the shrinkage of the inner bag, the guide tube It is easy to return to the normal shape.

  (2) Further, the present invention is the fire extinguishing agent tank according to (1), wherein the guide pipe is formed of a coil spring.

  According to the present invention, in addition to the effect (1), the guide tube can be easily obtained, and the cost for purchase can be reduced. Further, since the coil spring has flexibility, it is strong against external force due to a pressure difference between the inside and outside and an external force due to contraction of the inner bag, and is more resistant to breakage.

  (3) Further, in the present invention, in order to expand and contract the inner bag, a connecting means for connecting to the guide tube is provided at the bottom of the inner bag. This is a fire extinguisher tank.

  According to the present invention, since the inner bag expands and contracts vertically by moving the guide tube up and down, the fire extinguishing agent inside the inner bag can be agitated. Therefore, even when clogging occurs when using a fire extinguisher having a high viscosity thixotropic property, it can be eliminated by stirring.

  (4) Moreover, this invention is a fire extinguisher tank in any one of (1) or (2) characterized by providing the expansion-contraction means for expanding / contracting the said guide pipe.

  According to the present invention, by expanding and contracting the spiral guide tube, it is possible to widen or narrow the spiral opening to eliminate clogging of the guide tube due to the extinguishing agent.

  According to the present invention, the clogging of the guide pipe due to the extinguishing agent is eliminated, and damage to the inner bag and the guide pipe caused by the force due to the pressure difference between the inside and outside and the force due to the contraction of the inner bag can be prevented, so that there are few failures and stable. Since the extinguishing agent in the inner bag can be discharged, the performance of the extinguishing agent tank can be sufficiently exhibited.

The longitudinal cross-sectional view of the fire extinguisher tank in Example 1 of this invention. The longitudinal cross-sectional view of the fire extinguisher tank in Example 2 of this invention. FIG. 6 is a partial cross-sectional view of a fire extinguisher tank in Example 3 of the present invention. FIG. 6 is a partial cross-sectional view of a fire extinguisher tank in Example 4 of the present invention.

  This invention is a fire extinguisher tank which stores a fire extinguisher inside and discharge | releases a fire extinguisher outside by pressure gas etc. Hereinafter, modes for carrying out the present invention will be described.

  FIG. 1 is a longitudinal sectional view showing a fire extinguisher tank 1-1 in Embodiment 1 of the present invention. 2 is a tank body, 2a is a socket, 3 is a first lid portion, 4 is an opening portion, 5 is a connection portion, 6 is a second lid portion, 7 is a flow hole provided in the second lid portion, and 8 is a guide tube , 9 is an inner bag, 10 is an inner bag connecting port, and 11 is a flow hole. The tank body 2 is formed with a ring-shaped socket 2a at the top and a circulation hole 11 at the bottom. The 1st cover part 3 is a substantially disk shape, and the outer screw is provided in the outer periphery. An opening 4 is provided at the center of the first lid 3, and a connecting part 5 is provided at the lower part thereof. The connection part 5 has a screw to which the inner bag 9 is detachably attached. The second lid 6 has a screw and is provided with a flow hole 7. The guide tube 8 has a continuous spiral opening 8a around it. As shown in FIG. 1, when the second lid 6 is attached to the opening 4, the guide tube 8 is inserted into the inner bag 9.

  In the fire extinguisher tank 1-1 of the present invention, an inner bag 9 is provided inside the tank body 2. The inner bag 9 is attached to the connecting portion 5 provided inside the first lid portion 3 by the inner bag connecting port portion 10, and the second lid portion 6 is connected to the opening portion 4 of the first lid portion 3. It is detachably attached. A guide tube 8 having a spiral opening 8 a in the peripheral wall portion is fitted to the lower portion of the second lid portion 6 inside the inner bag 9. The guide pipe 8 is provided inside the inner bag 9 and communicates with the opening 4 and the flow hole 7 to form a flow path for the extinguishing agent. The inner bag 9 is filled with a fire extinguishing agent. The pressure gas or the like is filled into the tank body 2 through a flow hole 11 provided in the lower part. When the fire extinguisher tank 1-1 is used, the fire extinguisher in the inner bag 9 is pressed by pressure gas or the like, and flows into the guide pipe 8 from the opening 8a formed in a spiral shape on the guide pipe 8. . And the fire extinguisher induced | guided | derived by the induction | guidance | derivation pipe 8 passes along the flow hole 7, and is discharge | released outside from the fire hose etc. which were connected to the flow hole 7. FIG.

  In the fire extinguisher tank 1-1, when the inner bag 9 is pressed by pressure gas or the like, it sticks to the guide tube 8 and closes a part of the opening 8a, but it is spiral, so The opening 8a is not blocked. Therefore, all the fire extinguishing agents in the inner bag 9 can be released. In addition, in the case of a highly viscous extinguisher having thixotropic properties, the effect of reducing the frequency of clogging with the extinguishing agent is particularly great as compared with a normal guide pipe. And since the surrounding wall part of the induction | guidance | derivation pipe 8 is helical, even if external force is added to the induction | guidance | derivation pipe 8 by shrinkage | contraction of the inner bag 9, it can deform | transform flexibly following the shrinkage | contraction of the inner bag 9. FIG. Therefore, the guide tube 8 is not damaged, and can return to its original shape when there is no external force. Note that the width of the opening 8a in the guide tube 8 may be changed according to the characteristics of the extinguishing agent filled in the inner bag 9 and the strength of the external force at the time of contraction. There is no limit.

  FIG. 2 is a longitudinal sectional view showing a fire extinguisher tank 1-2 in Embodiment 2 of the present invention. 12 is a coil spring made of a guide tube fitted to the lower portion of the second lid portion 6, and the other structure of the fire extinguisher tank 1-2 is the same as that of the fire extinguisher tank 1-1 shown in the first embodiment. It is.

  In Example 2, even if the extinguishing agent is pressed by pressure gas or the like and the inner bag 9 contracts and sticks to the guide tube 12, the attached inner bag 9 is formed in a cylindrical shape with a coil spring as a skeleton and has an opening. It will not block everything. Therefore, all the fire extinguishing agents filled in the inner bag 9 can be released. In addition, since the guide tube 12 is constituted by a coil spring, it has elasticity, so that it is resistant to deformation due to external force, and can return to its original shape when the external force is eliminated. Further, since the coil spring manufacturing method can be used, the molding is easy, the manufacturing cost is low, and the characteristics of the extinguishing agent and the force when compressing the inner bag 9 can be easily accommodated.

  FIG. 3 is a partial cross-sectional view showing a fire extinguisher tank 1-3 according to the third embodiment of the present invention. Reference numeral 13 denotes a coil spring-shaped induction tube fitted to the lower portion of the second lid portion 6 provided with an engagement portion 14 at the bottom, and 15 denotes an engagement portion 14 at the bottom inside the bag as a connecting means for connecting to the induction tube 13. It is an inner bag provided with a locking portion 16 to be engaged. About the other structure of the fire extinguisher tank 1-3, it is the same as that of the fire extinguisher tank 1-1 shown in Example 1. FIG.

  In Example 3, even if the fire extinguishing agent clogs the opening of the guide tube 13, the bottom of the inner bag 15 is moved up and down to expand and contract the inner bag 15, so that the fire extinguishing agent in the inner bag 15 is expanded. And the clogging of the guide tube 13 can be eliminated. At that time, the second lid 6 is removed from the first lid 3 and the guide tube 13 fitted to the lower portion of the second lid 6 is moved up and down in the inner bag 15 to The bottom portion of the inner bag 15 is moved up and down by the engaged locking portion 16.

  FIG. 4 is a partial cross-sectional view showing a fire extinguisher tank 1-4 in Embodiment 4 of the present invention. 17 is a coil spring-shaped induction tube, 18 is an expansion / contraction device used as expansion / contraction means for expanding / contracting the induction tube 17 attached to the second lid portion 6, 19 is a sliding tube, 20 is an expansion / contraction rod, and 21 is a locking portion. , 22 is a pipe joint for attaching a fire hose or the like to the telescopic device. About the other structure of the fire extinguisher tank 1-4, it is the same as that of the fire extinguisher tank 1-1 shown in Example 1. FIG.

  The expansion device 18 is attached so that the sliding tube 19 slides in the vertical direction of FIG. 4, and the user can manually expand and contract the sliding tube 19. The flat expansion / contraction rod 20 attached to the inside of the sliding tube 19 is inserted through the guide tube 17 and one end thereof is engaged with the end of the guide tube 17 by a locking portion 21. When using the fire extinguishing agent tank 1-4, the fire extinguishing agent in the inner bag 9 is guided into the sliding tube 19 by the guide pipe 17 and discharged to the outside from the fire extinguishing hose connected to the pipe joint 22. When the guide tube 17 is clogged with the fire extinguishing agent, the slide tube 19 is moved up and down without removing components such as the second lid 6. Then, the guide tube 17 expands and contracts, and the extinguishing agent in the inner bag 9 can be stirred and clogging of the guide tube 17 can be eliminated. In this embodiment, a coil spring-shaped guide tube is used as the guide tube to be expanded and contracted. However, if a spiral guide tube made of a material having elasticity or elasticity is used, the guide tube is replaced with the coil spring-shaped guide tube. The same effect can be obtained by expanding and contracting with the expansion and contraction device in the embodiment.

1-1 Extinguishing agent tank, 1-2 Extinguishing agent tank, 1-3 Extinguishing agent tank, 1-4 Extinguishing agent tank, 2 Tank body, 2a socket, 3 1st cover part, 4 opening part, 5 connection part, 6 2nd cover part, 7 Flowing hole, 8 Guide pipe, 8a Opening part, 9 Inner bag, 10 Inner bag connection port part, 11 Flowing hole, 12 Guide pipe, 13 Guide pipe, 14 Locking part, 15 Inner bag, 16 Locking portion, 17 Guide tube, 18 Telescopic device, 19 Sliding tube, 20 Telescopic rod, 21 Locking portion, 22 Pipe joint

Claims (4)

The tank body,
An inner bag provided inside the tank body;
A guide pipe that is inserted into the inner bag and discharges a fire extinguishing agent that fills the inner bag;
A fire extinguisher tank with
The fire extinguishing agent tank, wherein the guide tube has a spiral continuous opening.   The fire extinguishing agent tank according to claim 1, wherein the guide pipe is formed of a coil spring.   The fire extinguishing agent tank according to claim 1 or 2, wherein a connecting means for connecting to the guide pipe is provided at the bottom of the inner bag in order to expand and contract the inner bag.   The extinguishing agent tank according to claim 1, further comprising an expansion / contraction means for extending / contracting the guide pipe.

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