JP6650377B2 - Fire extinguisher tank - Google Patents

Description

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

  For large fire extinguisher tanks and small portable fire extinguisher tanks provided in fire extinguishing equipment, fire extinguisher tanks are provided with inner bags filled with foam fire extinguisher or high-viscosity gel-containing fire extinguisher. A fire extinguisher 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 extruded by the pressure is employed. In this type of fire extinguishing agent tank, a guide tube is provided in the inner bag to guide the fire extinguishing agent to the outside in order to efficiently discharge the fire extinguishing agent in the inner bag (see Patent Document 1). However, in a general guide tube having an opening only at the tip, the inner bag may stick to the opening when the inner bag pressed by the pressure gas or the like contracts and the fire extinguishing agent is released. . Then, there is a problem that the opening is closed and the release of the fire extinguishing agent stops on the way, so that all the extinguishing agent in the inner bag cannot be used. Further, even in the case of a guide tube in which a plurality of holes are provided in the peripheral wall of the guide tube or a slit is provided, the inner bag may stick to the hole or the slit, causing the same problem.

  Also, as described above, in the case of a method in which the inner bag is pressed by an external force such as a pressurized gas to discharge the internal fire extinguishing agent by compression, the external force due to the pressure difference between the inside and the outside and the external force generated when the inner bag sticks to the guide tube. However, there is a possibility that the guide tube may be bent or the inner bag may be broken at a portion in contact with the guide tube. As described above, the existing fire extinguishing agent tank has a problem that the fire extinguishing agent cannot be discharged stably and the guide tube and the inner bag are easily broken due to breakage.

JP 2015-104391 A

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

  The present invention is to solve the above-mentioned problem, and has the following configuration.

(1) The present invention provides a tank body, an inner bag provided inside the tank body, and a fire extinguisher inserted into the inner bag to discharge the fire extinguishing agent filled in the inner bag to the outside. And a guide tube, wherein the guide tube has a spirally continuous opening.

  ADVANTAGE OF THE INVENTION According to this invention, even if an inner bag shrinks and adheres to a guide tube, it does not block all the spiral continuous openings provided in the guide tube. Therefore, all of the fire extinguishing agent filled in the inner bag can be released, and the extinguishing agent and the like can be stably and efficiently discharged. In addition, the frequency of clogging of the opening can be particularly reduced with respect to a high viscosity fire extinguishing agent having thixotropic properties. Furthermore, since the guide tube is helically formed and deforms flexibly following the shrinkage of the inner bag, the guide tube and the inner bag are hardly damaged. It can easily return to its normal shape.

  (2) The present invention is the fire extinguisher tank according to (1), wherein the guide tube is formed of a coil spring.

  According to the present invention, in addition to the effect of the above (1), it is easy to obtain the guide tube, and the cost at the time of purchase can be reduced. Further, since the coil spring has flexibility, it is resistant to external force due to a pressure difference between the inside and outside and external force due to shrinkage of the inner bag, and is more resistant to breakage.

  (3) Further, in the present invention, a connection means for connecting to the guide tube is provided at a bottom portion of the inner bag in order to expand and contract the inner bag, according to any one of (1) and (2). Fire extinguisher tank.

  According to the present invention, since the inner bag expands and contracts up and down by moving the guide tube up and down, the fire extinguisher inside the inner bag can be stirred. Therefore, when a high-viscosity thixotropic fire extinguisher is used, clogging can be eliminated by stirring.

  (4) The present invention is the fire extinguisher tank according to any one of (1) and (2), further comprising an expansion / contraction means for expanding / contracting the guide tube.

  ADVANTAGE OF THE INVENTION According to this invention, a clogging with a fire extinguishing agent can be eliminated by expanding and contracting a spiral opening by expanding and contracting a spiral guide tube.

  According to the present invention, clogging of the guide tube due to the fire extinguishing agent is eliminated, and damage to the inner bag and the guide tube caused by the force due to the pressure difference between the inside and the outside and the force due to the shrinkage of the inner bag can be prevented, so that there is little failure and stable. Since the fire extinguishing agent and the like in the inner bag can be released, the performance of the fire extinguishing agent tank can be sufficiently exhibited.

1 is a longitudinal sectional view of a fire extinguishing agent tank according to a first embodiment of the present invention. FIG. 6 is a vertical sectional view of a fire extinguishing agent tank according to a second embodiment of the present invention. FIG. 10 is a partial cross-sectional view of a fire extinguishing agent tank according to a third embodiment of the present invention. FIG. 9 is a partial cross-sectional view of a fire extinguishing agent tank according to a fourth embodiment of the present invention.

  The present invention is a fire extinguishing agent tank that stores a fire extinguishing agent inside and discharges the fire extinguishing agent to the outside by a pressurized gas or the like. Hereinafter, embodiments for carrying out the present invention will be described.

  FIG. 1 is a longitudinal sectional view showing a fire extinguishing agent tank 1-1 according to Embodiment 1 of the present invention. 2 is a tank body, 2a is a socket, 3 is a first lid, 4 is an opening, 5 is a connecting part, 6 is a second lid, 7 is a flow hole provided in the second lid, and 8 is a guide tube. , 9 is an inner bag, 10 is an inner bag connection port, and 11 is a circulation hole. The tank main body 2 has a ring-shaped socket 2a formed at an upper portion, and a flow hole 11 provided at a lower portion. The first lid 3 is substantially disk-shaped, and has an outer thread provided on the outer periphery. An opening 4 is provided at the center of the first lid 3, and a connection 5 is provided below the opening 4. The connection portion 5 has a screw to which the inner bag 9 is detachably attached. The second lid 6 has a screw and a communication hole 7 is provided. The guide tube 8 has a continuous spiral opening 8a around it. When the second cover 6 is attached to the opening 4 as shown in FIG. 1, the guide tube 8 is in a state of being 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 main body 2. The inner bag 9 is attached to the connection portion 5 provided inside the first lid portion 3 by the inner bag connection opening portion 10, and the second lid portion 6 is attached to the opening 4 of the first lid portion 3. It is attached detachably. A guide tube 8 having a helical opening 8a in the peripheral wall portion is fitted to a lower portion of the second lid portion 6 inside the inner bag 9. The guide tube 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 fire extinguishing agent. The inner bag 9 is filled with a fire extinguisher. Pressure gas or the like is filled into the tank main body 2 through a flow hole 11 provided at a lower portion. When the fire extinguisher tank 1-1 is used, the fire extinguishing agent in the inner bag 9 is pressed by a pressure gas or the like, and flows into the guide tube 8 from the spirally formed opening 8a of the guide tube 8. . The fire extinguishing agent guided by the guide pipe 8 passes through the flow hole 7 and is discharged to the outside from a fire hose or the like connected to the flow hole 7.

  In the case of the fire extinguishing agent tank 1-1, when the inner bag 9 is pressed by the pressure gas or the like, it may stick to the guide tube 8 and partially close the opening 8a, but is spirally shaped. The opening 8a is not closed. Therefore, all the fire extinguishing agent in the inner bag 9 can be released. In addition, in the case of a high viscosity fire extinguishing agent having thixotropic properties, the effect of reducing the frequency of clogging with the fire extinguishing agent is particularly greater than that of an ordinary guide tube. Since the peripheral wall of the guide tube 8 has a spiral shape, even if an external force is applied to the guide tube 8 due to the contraction of the inner bag 9, the guide tube 8 can flexibly deform following the contraction of the inner bag 9. Therefore, the guide tube 8 is not damaged, and can return to the original shape when there is no external force. The size of the width of the opening 8a in the guide tube 8 may be changed according to the characteristics of the fire extinguishing agent filled in the inner bag 9 and the strength of the external force at the time of contraction. It is not limited.

  FIG. 2 is a longitudinal sectional view showing the fire extinguishing agent tank 1-2 according to the second embodiment of the present invention. Reference numeral 12 denotes a coil spring formed from an induction tube fitted to the lower portion of the second lid portion 6. Other configurations of the fire extinguishing agent tank 1-2 are the same as those of the fire extinguishing agent tank 1-1 shown in the first embodiment. It is.

  In the second embodiment, even when the fire extinguishing agent is pressed by a pressure gas or the like and the inner bag 9 contracts and adheres to the guide tube 12, the attached inner bag 9 is formed in a cylindrical shape using a coil spring as a framework and the opening is formed. Will not block everything. Therefore, all of the fire extinguishing agent filled in the inner bag 9 can be released. In addition, since the guide tube 12 is formed of a coil spring, it has an elastic force and thus is resistant to deformation due to an external force. Furthermore, since the coil spring manufacturing method can be used, molding is easy, the manufacturing cost is low, and it is possible to easily cope with the characteristics of the fire extinguishing agent and the force when the inner bag 9 is compressed.

  FIG. 3 is a partial cross-sectional view illustrating a fire extinguishing agent tank 1-3 according to a third embodiment of the present invention. Reference numeral 13 denotes a coil-spring-shaped guide tube fitted to the lower portion of the second lid portion 6 provided with a lock portion 14 at the bottom. Reference numeral 15 denotes a connection means for connecting to the guide tube 13 and a lock portion 14 at the bottom inside the bag. It is an inner bag provided with a locking portion 16 to be engaged. Other configurations of the fire extinguishing agent tank 1-3 are the same as those of the fire extinguishing agent tank 1-1 shown in the first embodiment.

  In the third embodiment, even if the fire extinguishing agent closes and blocks the opening of the guide tube 13, the inner bag 15 is expanded and contracted by moving the bottom of the inner bag 15 up and down, so that the fire extinguishing agent in the inner bag 15 is removed. And clogging of the guide tube 13 can be eliminated. At this time, the second lid 6 is detached from the first lid 3, and the guide tube 13 fitted to the lower part of the second lid 6 is moved up and down in the inner bag 15. The bottom of the inner bag 15 is moved up and down by the engaged locking portion 16.

  FIG. 4 is a partial cross-sectional view illustrating a fire extinguishing agent tank 1-4 according to a fourth embodiment of the present invention. 17 is a coil spring-shaped guide tube, 18 is a telescopic device used as a telescopic means for expanding and contracting the guide tube 17 attached to the second lid 6, 19 is a slide tube, 20 is a telescopic rod, and 21 is a locking portion. , 22 are pipe joints for attaching a fire hose or the like to the expansion device. Other configurations of the fire extinguisher tank 1-4 are the same as those of the fire extinguisher tank 1-1 shown in the first embodiment.

  The expansion / contraction device 18 is attached so that the sliding tube 19 slides vertically in FIG. 4, and a user can manually extend and contract the sliding tube 19. The flat extension / retraction rod 20 attached to the inside of the slide tube 19 penetrates the guide tube 17, and has one end 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 tube 17, and is discharged to the outside from the fire hose connected to the pipe joint 22. When the guide tube 17 is clogged with the fire extinguishing agent, the sliding tube 19 is moved up and down without removing parts such as the second lid 6. Then, the guide tube 17 expands and contracts, and the fire extinguishing agent in the inner bag 9 is stirred, and the clogging of the guide tube 17 can be eliminated. In this embodiment, a coil spring-shaped guide tube is used as the guide tube for expanding and contracting. However, if the guide tube is a spiral guide tube made of a material having elasticity or elasticity, the present invention may be used instead of the coil spring-shaped guide tube. The same effect can be obtained by expanding and contracting by the expansion and contraction device in the embodiment.

1-1 fire extinguisher tank, 1-2 fire extinguisher tank, 1-3 fire extinguisher tank, 1-4 fire extinguisher tank, 2 tank body, 2a socket, 3rd lid, 4 opening, 5 connecting part, 6 2nd lid part, 7 flow holes, 8 guide pipes, 8a opening, 9 inner bags, 10 inner bag connection mouths, 11 flow holes, 12 guide tubes, 13 guide tubes, 14 locking portions, 15 inner bags, DESCRIPTION OF SYMBOLS 16 Locking part, 17 Guide pipe, 18 Telescopic device, 19 Sliding tube, 20 Telescopic rod, 21 Locking part, 22 Pipe joint

Claims (3)

A tank body,
An inner bag provided inside the tank body,
A guide tube having a helically continuous opening , inserted into the inner bag, and discharging a fire extinguishing agent filled in the inner bag to the outside,
Connection means for connecting the bottom of the inner bag and the guide tube,
A fire extinguisher tank with
A fire extinguisher tank , wherein the bottom of the inner bag connected by the connection means is moved up and down by the up and down movement of the guide tube, so that the inner bag can be extended and contracted .   A tank body,
  An inner bag provided inside the tank body,
  A guide tube having a spirally continuous opening portion, inserted into the inner bag, and discharging a fire extinguishing agent filled in the inner bag to the outside,
  A telescopic rod that penetrates the inside of the guide tube and has one end engaged with the end of the guide tube;
Fire extinguisher tank with
  The guide tube is formed in a spiral shape with a material having elasticity or elasticity,
  The extinguishing agent is characterized in that the guide tube is extended and retracted by the up and down movement of the telescopic rod, and the bottom of the inner bag is moved up and down to stir the extinguishing agent and to eliminate clogging of the guiding tube. tank.   The fire extinguisher tank according to claim 1, wherein the guide tube is formed of a coil spring.

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