JP2013188404A - Fire extinguisher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fire extinguisher that, on the basis of a comparatively simple structure, effectively primes a water pump and that has a function of selectively discharging fire-extinguishing foams or fire-extinguishing water.SOLUTION: There is provided a fire extinguisher 1 having a water pump 10 and a water-lubricating type compressor 20 that is connected to the water pump 10. In the water pump 10, there are provided a water inlet piping part 13, a first discharge piping part 11, and a second discharge piping part 12. The first discharge piping part 11 is connected to a nozzle part 30 while the second discharge piping part 12 is connected to the water lubricating type compressor 20. The fire extinguisher is characterized in that, between the first discharge piping part 11 and the nozzle part 30, fire extinguishing stock solution piping part 41 is connected and that, between the fire extinguishing stock solution piping part 41 and the nozzle part 30, a compressor discharge piping part 24 is connected which is in communication with the water lubricating type compressor 20.

Description

  The present invention relates to a fire extinguisher, for example, a fire extinguishing apparatus that can be used in a fire truck.

  As a fire extinguishing apparatus according to the prior art, fire extinguishing by discharging water pumped by a water pump as fire extinguishing water, or mixing fire extinguishing stock solution into water pumped by a water pump and releasing it as a fire extinguishing foam It is known to extinguish fires.

  In the normal use, the water pump constituting the fire extinguishing apparatus described above needs to introduce priming water into the water pump and fill the water pump with the priming water before discharging the fire extinguishing water or the fire extinguishing bubbles. As a technique related to the priming water of such a water pump, for example, a technique disclosed in Patent Document 1 is known.

  In addition, as a fire extinguisher in recent years, as described above, a device that mixes a fire extinguishing stock solution into water pumped by a water pump and discharges it as a fire extinguisher foam is known. Depending on the fire location and fire condition, it may be better to release the fire-extinguishing foam, or it may be better to release the fire-extinguishing water.

  That is, the fire extinguishing apparatus according to the related art requires a configuration for introducing priming water in the water pump or a configuration for generating fire extinguishing bubbles, so that complication of the apparatus is inevitable. There was a problem.

JP 7-42675 A

  Therefore, the present invention has been made to solve the above-described problems of the prior art, and based on a relatively simple configuration, the priming water is effectively introduced into the water pump, and fire extinguishing foam or fire fighting water is removed. It is an object to provide a fire extinguishing apparatus having a function of selectively releasing.

  A first aspect of the present invention is made to solve the above problems, and is a fire extinguishing apparatus including a water pump and a water-lubricated compressor connected to the water pump. Is provided with a water absorption pipe part, a first discharge pipe part, and a second discharge pipe part, the first discharge pipe part is connected to a nozzle part, and the second discharge pipe part is the water lubrication type A fire extinguishing concentrate pipe section is connected between the first discharge pipe section and the nozzle section, and the water lubricated compressor is connected between the fire extinguishing concentrate pipe section and the nozzle section. The compressor discharge piping part connected is connected, It is characterized by the above-mentioned.

  The second aspect of the present invention is made to solve the above-described problem, and is a fire extinguishing apparatus including a water pump and a water-lubricated compressor connected to the water pump. The pump is provided with a water absorption pipe part, a first discharge pipe part, and a second discharge pipe part, and the water lubricated compressor has a first suction pipe part, a second suction pipe part, A third suction pipe section and a compressor discharge pipe section are provided, the first discharge pipe section is connected to a nozzle section, and a fire extinguishing concentrate pipe section is provided between the first discharge pipe section and the nozzle section. And the second discharge piping is connected to the first suction piping and the third suction piping of the water-lubricated compressor, and the second discharge piping upstream of the first suction piping. The part is provided with a first valve part, the first suction pipe part and the A second valve portion is provided in the second discharge piping portion between the three suction piping portions, the third suction piping portion is configured to communicate with outside air, and the compressor discharge piping portion is The fire extinguishing stock solution piping section and the nozzle section are connected to the first discharge piping section.

  ADVANTAGE OF THE INVENTION According to this invention, based on a comparatively simple structure, while introducing the priming water in a water pump effectively, the fire extinguishing apparatus which has a function which discharge | releases fire extinguishing foam or fire-extinguishing water selectively can be obtained.

BRIEF DESCRIPTION OF THE DRAWINGS The schematic block diagram of the fire extinguishing apparatus concerning 1st embodiment of this invention is shown. The schematic block diagram of the fire extinguishing apparatus concerning 1st embodiment of this invention is shown, and specifically, the drive state (opening-closing state etc. of a fluid piping part) of the apparatus at the time of "priming water" is shown. The schematic block diagram of the fire extinguishing apparatus concerning 1st embodiment of this invention is shown, Specifically, the drive state (opening-closing state etc. of a fluid piping part) of the apparatus at the time of "water discharge" is shown. The schematic block diagram of the fire extinguishing apparatus concerning 1st embodiment of this invention is shown, Specifically, the drive state (opening-closing state etc. of a fluid piping part) of the apparatus at the time of "bubble emission" is shown. The schematic block diagram of the fire extinguishing apparatus concerning 2nd embodiment of this invention is shown.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<First embodiment>
FIG. 1: shows the schematic block diagram of the fire extinguishing apparatus concerning 1st embodiment of this invention. 2 to 4 show a driving state (opening / closing state of the fluid piping portion, etc.) in an appropriate usage state of the fire extinguishing apparatus according to the first embodiment of the present invention. Specifically, FIG. 2 shows the open / close state of the fluid piping section at the time of “priming”, FIG. 3 shows the open / close state of the fluid piping section at the “water discharge”, and FIG. The opening and closing state of the fluid piping portion at “time” is shown.

  As shown in FIG. 1, the fire extinguisher 1 according to this embodiment is configured by connecting a water pump 10, a water-lubricated compressor 20, a nozzle part 30, a fire extinguishing stock solution tank 40, and the like to a plurality of fluid piping parts. ing. In addition, the fluid piping part connecting each component includes a plurality of valve parts (first valve part 61 to fourth valve part 64) and a plurality of check valves (first check valve 71 to fourth valve). A check valve 74) and the like are provided.

  The water pump 10 is provided with a first discharge piping portion 11, a second discharge piping portion 12, and a water absorption piping portion 13. One end of the water absorption pipe portion 13 provided in the water pump 10 is provided at a position where water can be absorbed from the water source S. Further, the first discharge piping part 11 provided in the water pump 10 is connected to the nozzle part 30. Further, the second discharge pipe portion 12 provided in the water pump 10 is connected to the water lubricated compressor 20.

  A first check valve 71 is provided in the first discharge piping section 11 that connects the water pump 10 and the nozzle section 30. Further, a fire extinguishing stock solution piping part 41 communicating with the fire extinguishing stock solution tank 40 is connected to the downstream side of the first check valve 71, and a fourth check valve 74 is provided in the fire fighting stock solution piping part 41. . Further, a compressor discharge piping portion 24 communicating with the water-lubricated compressor 20 is connected to the downstream side of the connection portion of the first discharge piping portion 11 with the fire extinguishing stock solution piping portion 41. A third check valve 73 is provided. The first discharge pipe section 12 provided in the water pump 10 is provided with a first valve section 61.

  The water lubricated compressor 20 is provided with a first suction pipe part 21, a second suction pipe part 22, a third suction pipe part 23, and a compressor discharge pipe part 24. The water-lubricated compressor 20 according to the present embodiment can perform lubrication of the rotor bearing and sealing between the rotors with water that is sucked and press-fitted (press-fed), and separates the lubricating water and the sealed water into sealed water. By suctioning on the side, a high vacuum state can be stably generated.

  One end of the first suction pipe section 21 provided in the lubricating water suction section of the water-lubricated compressor 20 is downstream of the first valve section 61 in the second discharge pipe section 12 communicating with the water pump 10. It is connected to the. A second valve portion 62 is provided on the downstream side of the first suction piping portion 21 in the second discharge piping portion 12, and the downstream side of the second valve portion 62 is connected to the third suction piping portion 23. Has been.

  One end portion of the second suction pipe portion 22 provided in the outside air intake portion of the water-lubricated compressor 20 is configured to be able to suck outside air, and the second suction pipe portion 22 includes a third valve portion. 63 is provided.

  One end of the third suction pipe portion 23 provided in the sealed water suction portion of the water-lubricated compressor 20 is connected to a bearing lubrication pipe portion 51 communicating with the water tank 50, and the bearing lubrication piping portion 51. Is provided with a second check valve 72.

  One end of the compressor discharge pipe section 24 provided in the water discharge section of the water-lubricated compressor 20 is connected to the downstream side of the first discharge pipe section 11 where the fire extinguishing concentrate pipe section 41 is connected. The compressor discharge piping section 24 is provided with a third check valve 73. A drain piping 52 is connected to the upstream side of the third check valve 73 installation location in the compressor discharge piping 24.

  As described above, the nozzle portion 30 is provided at the downstream end portion of the first discharge piping portion 11. The nozzle portion 30 has a diameter (diameter) of about 16 mm to 23 mm, for example. And this nozzle part 30 is open | released outside.

  As described above, the fire-extinguishing stock solution tank 40 is provided with the fire-extinguishing stock solution piping section 41, and one end thereof is connected to the downstream side of the first check valve 71 in the first discharge piping section 11. The fire extinguishing stock solution piping part 41 is provided with a fourth check valve 74.

  Examples of the fire extinguishing stock solution stored in the fire extinguishing stock solution tank 40 include a surfactant.

  The water tank 50 is provided with a bearing lubrication piping part 51, a drain piping part 52, and a water-covering piping part 53.

  As described above, the bearing lubrication piping portion 51 provided in the water tank 50 is connected to the third suction piping portion 23 provided in the water lubrication compressor 20, and the bearing lubrication piping portion 51 includes: A second check valve 72 is provided. As described above, one end of the drain pipe portion 52 provided in the water tank 50 is connected to the upstream side of the third check valve 73 in the compressor discharge pipe portion 24. The drain pipe portion 52 is provided with a fourth valve portion 64. One end portion of the water-covering piping part 53 provided in the water tank 50 is configured to be open to the outside of the water tank 50.

  The fire extinguisher 1 according to the present embodiment is configured as described above, and functions in the following manner at the time of “priming”, “at the time of water discharge”, and “at the time of bubble emission” based on the structural features. To do. Hereinafter, it demonstrates concretely using FIGS.

  It is necessary to drive the water pump 10 in any case where the fire extinguishing apparatus 1 according to the present embodiment is used to discharge the fire extinguishing water or to emit fire extinguishing bubbles. When the water pump 10 is driven to discharge water and emit bubbles, the water pump 10 must first be filled with priming water. In the present embodiment, the priming water is configured to be introduced into the water pump 10 using a water-lubricated compressor 20.

  FIG. 2 shows a driving state of the fire extinguisher 1 according to the present embodiment at the time of “priming” (opening / closing state of the fluid piping portion, etc.).

  As shown in FIG. 2, the fire extinguisher 1 according to the present embodiment includes a first valve portion 61 provided in the second discharge piping portion 12 and a drain piping portion 52 when the water pump 10 is filled with priming water. The provided fourth valve portion 64 is set to the “open” state. And the 2nd valve part 62 provided in the 2nd discharge piping part 12 and the 3rd valve part 63 provided in the 2nd suction piping part 22 are made into a "closed" state.

  In the present embodiment, the water-lubricated compressor 20 is driven by opening and closing each of the valve portions 61 to 64 in the state shown in FIG. Then, from the lubricating water suction part (first suction pipe part 21) of the water-lubricated compressor 20, the water in the water source S is passed through the water pump 10 (the water suction pipe part 13 and the second discharge pipe part 12). Water in the water tank 50 is sucked from the sealed water suction part (third suction pipe part 23), and the sucked water is returned to the water tank 50 from the water discharge part of the water-lubricated compressor 20 via the drain pipe part 52. . At this time, the water-lubricated compressor 20 is driven so as to generate a negative pressure that can open the second check portion 72 provided in the bearing lubrication piping portion 51.

  Thus, in this embodiment, it becomes possible to fill the water pump 10 with priming water by driving the water-lubricated compressor 20 in the state of FIG. 2, and the second discharge piping section as described above. 12 and the 1st suction piping part 21 function as priming piping.

  Next, the drive state of each apparatus which comprises the fire extinguishing apparatus 1 at the time of discharging water (at the time of water discharging) using the fire extinguishing apparatus 1 concerning this embodiment is demonstrated. FIG. 3 shows the driving state of the fire extinguisher 1 according to the present embodiment during “water discharge” (opening / closing state of the fluid piping portion, etc.).

  As shown in FIG. 3, in the fire extinguishing apparatus 1 according to the present embodiment, when the fire extinguishing water is discharged from the nozzle portion 30, as described in FIG. 2, after filling the water pump 10 with priming water, All the valve parts 61-64 are made into a "closed" state, and the water pump 10 is driven.

  According to the fire extinguisher 1 according to the present embodiment, the water pump 10 is driven by opening and closing each of the valve portions 61 to 64 in a state as shown in FIG. If it does so, the water of the water source S will be absorbed through the water absorption piping part 13, and this absorbed water will be pumped by the water pump 10 (it will pump with the pressure which open | releases the 1st non-return valve 71). That is, according to this embodiment, by driving the water pump 10, the water in the water source S is pumped at a pressure that opens the first check valve 71 provided in the first discharge pipe section 11, and the water absorption Fire extinguishing water can be discharged from the nozzle unit 30 via the piping unit 13 and the first discharge piping unit 11. That is, the fire extinguisher 1 according to the present embodiment can discharge the fire-extinguishing water with the nozzle portion 30 directed toward the place where the fire is necessary in the state shown in FIG.

  Next, the drive state of each apparatus which comprises the fire-extinguishing apparatus 1 in the case of performing bubble radiation using the fire-extinguishing apparatus 1 concerning this embodiment (at the time of foam radiation) is demonstrated. FIG. 4 shows a driving state of the fire extinguishing apparatus 1 according to the present embodiment at the time of “bubble emission” (opening / closing state of the fluid piping portion, etc.).

  As shown in FIG. 4, in the fire extinguisher 1 according to the present embodiment, when the fire extinguishing bubbles are discharged from the nozzle portion 30, as described in FIG. 2, after filling the water pump 10 with priming water, The first valve unit 61, the second valve 62, and the third valve unit 63 are set in the “open” state, and the fourth valve unit 64 is set in the “closed” state. Then, the water pump 10 and the water lubricated compressor 20 are driven.

  In the present embodiment, the water pump 10 and the water-lubricated compressor 20 are driven by opening / closing the valve portions 61 to 64 in the state shown in FIG. If it does so, the water of the water source S will be absorbed through the water absorption piping part 13, and this water absorption will be pumped by the water pump 10 to the 1st discharge piping part 11 and the 2nd discharge piping part 12.

  In the state of FIG. 4, on the first discharge pipe unit 11 side, the water absorption is performed by the driving force of the water pump 10 at a pressure that opens the first check valve 71 provided in the first discharge pipe unit 11. The water from the water source S is pumped toward the nozzle unit 30 via the piping unit 13 and the first discharge piping unit 11. At this time, the fire extinguishing stock solution is mixed into the first discharge piping unit 11 via the fire extinguishing stock solution piping unit 41 communicated with the fire extinguishing stock solution tank 40. Here, the fourth check valve 74 provided in the fire extinguishing stock solution piping part 41 is configured to be opened at a negative pressure obtained by the discharge pressure of the water pump 10 and the discharge pressure of the water-lubricated compressor 20. Yes.

  Next, on the second discharge pipe 12 side, the water from the water source S is pumped toward the water-lubricated compressor 20 through the water absorption pipe 13 and the second discharge pipe 12 by the driving force of the water pump 10. Then, with the driving force of the water-lubricated compressor 20, together with the water discharged from the second discharge pipe section 12, the outside air sucked through the second suction pipe section 22 is sucked, and the water and the outside air are mixed. In this state, this mixed fluid (a fluid in which water and outside air are mixed) is applied to the first discharge pipe section 11 at a pressure that opens the third check valve 73 provided in the compressor discharge pipe section 24. It is pumped towards.

  According to the fire extinguishing apparatus 1 according to the present embodiment, the water and the fire extinguishing stock solution that are pumped through the first discharge pipe section 11 and the mixed fluid that is pumped through the compressor discharge pipe section 24 are the first discharge pipe. By mixing in the part 11, a “fire-extinguishing foam” is formed, and the fire-extinguishing foam can be discharged from the nozzle part 30 through the first discharge piping part 11. That is, the fire extinguisher 1 according to the present embodiment can emit the fire extinguishing bubbles with the nozzle portion 30 directed to the place where the fire extinguishing is necessary in the state shown in FIG.

  Now, as described above, the fire extinguisher 1 according to the present embodiment is configured and functions as shown in FIGS. 1 to 4, and therefore the following operational effects can be obtained. Hereinafter, specific effects and the like will be described.

  The fire extinguishing apparatus 1 according to the present embodiment is based on the configuration as described above, and appropriately operates the valve sections 61 to 64, the water pump 10, and the water lubricated compressor 20, thereby performing priming water introduction work and water discharge work. , And the bubble radiation operation can be performed effectively. More specifically, since the water-lubricated compressor 20 is used and the valve portions 61 to 64 and the check valves 71 to 74 are provided at the locations as shown in the drawings, based on a relatively simple configuration. Thus, it is possible to obtain the fire extinguishing apparatus 1 that effectively introduces priming water in the water pump and has a function of selectively discharging fire extinguishing bubbles or fire extinguishing water.

  Moreover, the fire extinguisher 1 according to the present embodiment uses a water-lubricated compressor 20 as a pumping device for filling the water pump 10 with priming water, and each valve unit 61 to an appropriate place as shown in FIG. 64 and check valves 71 to 74 are provided, so that a water stop valve and a steam / water separator that are necessary in a conventional fire extinguishing device or the like are not required. That is, by setting it as such a structure, the structure of the fire extinguishing apparatus 1 can be simplified.

  In addition, when using an oil lubricated compressor, high temperature operation is required to suppress emulsification of lubricating oil, but the fire extinguishing apparatus 1 according to the present embodiment uses a water lubricated compressor 20, and thus High temperature operation is not required. Furthermore, if it is the fire extinguishing apparatus 1 concerning this embodiment, an oil separator is also unnecessary. Therefore, by setting it as such a structure, the structure of the fire extinguishing apparatus 1 can be simplified.

  Moreover, according to the fire extinguishing apparatus 1 concerning this embodiment, since the 2nd discharge piping part 12 is utilized as priming water piping, from pumping completion (state of FIG. 2) to radiation | emission of fire extinguishing bubbles (state of FIG. 4) In the meantime, it is possible to perform the radiation operation of the fire extinguishing foam with the minimum necessary valve operation. In particular, the first valve portion 61 provided between the water pump 10 and the water-lubricated compressor 20 does not need to be opened or closed (the work can be performed in the open state). Therefore, according to such a configuration, it is possible to obtain the fire extinguishing apparatus 1 that can perform the bubble radiation operation in a relatively simple configuration and in a short time.

  Moreover, since the fire-extinguishing apparatus 1 concerning this embodiment uses the water lubrication type compressor 20, it can be sucked in even if it is gas or liquid. Therefore, freezing of the priming device (water-lubricated compressor 20 or the like) can be prevented by sucking antifreeze or the like as necessary.

<Second embodiment>
Next, a second embodiment of the present invention will be described.

  FIG. 5: shows the schematic block diagram of the fire extinguishing apparatus concerning 2nd embodiment of this invention.

  As shown in FIG. 5, the fire extinguisher 2 according to the present embodiment basically has the same configuration as that of the first embodiment, except that a mixer 80 is provided.

  That is, since the fire extinguishing apparatus 2 according to the present embodiment has substantially the same configuration and the like as the first embodiment, it has the same effects as the first embodiment.

  In addition, since the fire extinguisher 2 according to the present embodiment is provided with the mixer 80 at the connection point between the first discharge pipe section 11 and the compressor discharge pipe section, foam having higher functionality (fire extinguishing foam) is formed. can do.

<Other embodiments>
It should be noted that the present invention is not limited to the above-described embodiment, and can be implemented with various modifications as necessary within the scope that can meet the spirit of the present invention. It is included in the technical scope of the invention.

  In the said embodiment, although the structure which connects the water pump 10 and the water source S in the water absorption piping part 13 was demonstrated, this invention is not limited to this structure. Therefore, for example, the water pump and the water tank 50 may be connected by the water absorption pipe unit 13 and the water in the water tank 50 may be used. According to such a configuration, when the fire engine arrives at the fire extinguishing site, the fire extinguishing process can be smoothly performed without requiring the water source S or the like.

Moreover, in the said embodiment, although the structure which provides the 2nd check valve 72 in the bearing lubrication piping part 51 was demonstrated, this invention is not limited to this structure. Therefore, for example, a bearing lubrication valve may be provided in the bearing lubrication piping section 51, and the bearing lubrication valve may be “opened” as necessary to cool the shaft section of the water-lubricated compressor 20.
When it is set as such a structure, when the fire extinguisher 1 concerning this embodiment mentioned above fills the water pump 10 with priming water, the 1st valve part 61 provided in the 2nd discharge piping part 12, the drain piping part 52 The fourth valve portion 64 provided in the bearing and the bearing lubrication valve provided in the bearing lubrication piping portion 51 are set in the “open” state. And the 2nd valve part 62 provided in the 2nd discharge piping part 12 and the 3rd valve part 63 provided in the 2nd suction piping part 22 are made into a "closed" state.

  Further, in the above-described embodiment and the like, the configuration in which the second check valve 72 is provided in the bearing lubrication piping portion 51 or the configuration in which the bearing lubrication valve is provided in the bearing lubrication piping portion 51 has been described, but the present invention is limited to this configuration. Not. Therefore, for example, in the present invention, instead of the bearing lubrication valve, the bearing lubrication pipe portion 51 is provided with a pressure pump, and the pressure pump is operated as necessary to provide the shaft of the water lubricated compressor 20. It is good also as a structure which sends cooling water to a part.

  Moreover, this invention is not limited to the said embodiment, It is good also as a structure which provides a pressure pump in the fire extinguishing stock solution piping part 41 connected to the fire extinguishing stock solution tank 40 as needed. According to such a configuration, the fire-extinguishing stock solution is mixed into the first discharge piping unit 11 by pumping the fire-extinguishing stock solution with the pressure pump provided in the fire-extinguishing stock solution piping unit 41.

  Furthermore, this invention is not limited to the said embodiment etc. For example, it is good also as a structure which provides an ejector in the connection location of the 1st discharge piping part 11 and the fire extinguishing stock solution piping part 41. FIG. According to such a configuration, the fire-extinguishing stock solution can be mixed using the discharge pressure of the water pump 10 and the discharge pressure of the water-lubricated compressor 20.

The use location of the fire extinguishing apparatus according to the present invention is not particularly limited. Therefore, it may be used as a fire extinguisher fixed at a predetermined place, or it may be mounted on a fire engine or the like.
Since the fire extinguishing apparatus according to the present invention has a relatively simple configuration as described above, when it is mounted on a fire engine or the like, it is possible to realize cost reduction and effective use of the in-vehicle space. .

1 ... Fire extinguishing device (fire extinguishing device according to the first embodiment)
2. Fire extinguishing device (fire extinguishing device according to the second embodiment)
DESCRIPTION OF SYMBOLS 10 ... Water pump 11 ... 1st discharge piping part 12 ... 2nd discharge piping part 13 ... Water absorption piping part 20 ... Water lubrication type compressor 21 ... 1st suction piping part 22 ... 2nd suction piping part 23 ... 3rd suction piping part 24 ... Compressor discharge piping section 30 ... Nozzle section 40 ... Fire extinguishing stock solution tank 41 ... Fire extinguishing stock solution piping section 50 ... Water tank 51 ... Bearing lubrication piping section 52 ... Drain piping section 53 ... Water-covering piping section 61 ... First valve section 62 ... Second Valve part 63 ... Third valve part 64 ... Fourth valve part 71 ... First check valve 72 ... Second check valve 73 ... Third check valve 74 ... Fourth check valve 80 ... Mixer S ... Water source

Claims (2)

A fire extinguisher comprising a water pump and a water-lubricated compressor connected to the water pump,
The water pump is provided with a water absorption pipe part, a first discharge pipe part, and a second discharge pipe part,
The first discharge pipe part is connected to a nozzle part, and the second discharge pipe part is connected to the water-lubricated compressor,
Compressor discharge piping connected between the first discharge piping portion and the nozzle portion, and a fire-extinguishing concentrate piping portion and the nozzle portion communicating with the water-lubricated compressor. Fire extinguishing device, characterized in that the parts are connected. A fire extinguisher comprising a water pump and a water-lubricated compressor connected to the water pump,
The water pump is provided with a water absorption pipe part, a first discharge pipe part, and a second discharge pipe part,
The water lubricated compressor is provided with a first suction pipe, a second suction pipe, a third suction pipe, and a compressor discharge pipe.
The first discharge pipe part is connected to a nozzle part, and a fire extinguishing stock solution pipe part is connected between the first discharge pipe part and the nozzle part,
The second discharge pipe section is connected to the first suction pipe section and the third suction pipe section of the water-lubricated compressor, and a first valve is provided on the second discharge pipe section upstream of the first suction pipe section. A second valve part is provided in the second discharge pipe part between the first suction pipe part and the third suction pipe part,
The third suction pipe portion is configured to communicate with the outside air,
The fire-extinguishing apparatus, wherein the compressor discharge piping section is connected to the first discharge piping section between the fire-extinguishing stock solution piping section and the nozzle section.

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