JP2010042276A - Release check apparatus used for hydrant apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a release check apparatus for hydrant apparatuses which can facilitate recovery work after its release check and can shorten the work time required for recovery. <P>SOLUTION: This release check apparatus 7 comprises a tubular body 7c, a connection base 7a, and a nozzle connection end 7b connectable to a fire nozzle 6, as well as a pressure adjustment means for causing a pressure loss to an extinguishant flowing in the passage of the release check apparatus, the pressure loss which is equivalent to the pressure loss of a fire extinguishant flowing in a passage in a fire hose. The tubular body is made of a soft material such as a shape retention hose or a rubber hose. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a discharge inspection device for checking the discharge pressure and discharge amount of a fire hydrant device installed in, for example, a tunnel.

  For example, a fire hydrant apparatus installed in a tunnel or the like is generally provided with a fire hose having a base connected to a fire extinguisher supply source and having a nozzle at the tip, and is discharged from the nozzle through the fire hose. It is used to extinguish a fire caused by a fire extinguisher. In a fire hydrant apparatus equipped with such a fire hose, the fire hose is normally wound and accommodated in the apparatus box, and is drawn out from the apparatus box when a fire occurs.

  In the fire hydrant apparatus as described above, whether or not the fire hydrant apparatus has a predetermined discharge function and discharge performance, for example, the discharge pressure and discharge amount of the fire extinguisher discharged from the nozzle through the fire hose satisfy a predetermined value. In the past, when a pressure gauge is connected to the front of the nozzle, all of the fire extinguishing hose is entrained, that is, when the pull-out amount is 0 m, or when a fire breaks out We checked by measuring the discharge pressure of the fire extinguishing agent released from the nozzle with the fire extinguishing hose pulled out according to the state (Note that the diameter of the fire extinguishing hose etc. is constant for the discharge amount) If you measure the release pressure, you can also check the release amount.)

  However, the fire hose in the above-mentioned fire hydrant device uses a shape-keeping hose or rubber hose so that the fire hose can be pulled out and released as much as necessary in the event of a fire. Therefore, after all the fire hose is pulled out and the remaining water in the fire hose is discharged, the fire hose must be rolled in and accommodated. For this reason, after performing a discharge check as described above, the fire extinguishing hose must be pulled out to drain any remaining water in the fire extinguishing hose, and then the fire extinguishing hose must be re-engaged and housed. The subsequent recovery work was very difficult, and the time required for the recovery work was long.

  In view of the above circumstances, the present invention provides a fire hydrant device discharge inspection device that can facilitate recovery work after the discharge inspection work and shorten the work time required for the operation. With the goal.

  To describe the present invention that achieves the above object, it includes a tubular body, a connection base, and a nozzle connection end that can connect a fire-extinguishing nozzle, and pressure loss that occurs in the fire-extinguishing agent that flows through the fire-extinguishing hose side flow path A discharge inspection device having pressure adjusting means for generating a pressure loss equivalent to that in the extinguishing agent flowing through the flow passage on the discharge inspection device side, wherein the tubular body is formed of a flexible material such as a shape retaining hose or a rubber hose It is the discharge | emission inspection apparatus used for the fire hydrant apparatus characterized by the above-mentioned.

  Further, the nozzle connection end is a discharge inspection measure used for a fire hydrant device, wherein a fire extinguishing nozzle of the fire hydrant device can be moved and connected.

  According to the present invention, when checking the discharge of the fire hydrant device, it is possible to check the discharge without passing water through the fire hose. For this reason, it is not necessary to draw out all the extinguishing hoses and discharge the remaining water in the extinguishing hoses after the discharge inspection work, and it is not necessary to rewind and accommodate the drawn out extinguishing hoses. Therefore, it is possible to obtain a discharge inspection device for a fire hydrant device that can facilitate a recovery operation after the discharge inspection and shorten the work time required for the recovery operation.

It is the schematic which shows the outline of the discharge | release inspection apparatus used for the fire hydrant apparatus of this invention. It is a figure which shows the Example of the fire hydrant apparatus with which the discharge | release inspection apparatus of this invention is used, and is a perspective view in the state which opened the front inclination door (lower door).

  An embodiment of the present invention will be described with reference to FIG. First, an embodiment of a discharge inspection device used in the fire hydrant device of the present invention will be described. In FIG. 1, 1 is a fire hydrant device installed in, for example, a tunnel or the like, and a fire extinguisher having a pressure regulating valve 2, a fire hydrant valve 3, a three-way switching valve 4, and a nozzle 6 at a tip portion via a pipe P from the primary side. A hose 5 is provided. Although not shown, the primary side of the pressure regulating valve 2 is connected to a water supply source, and the fire hydrant device 1 discharges fire water from the nozzle 6 in response to the supply of fire water from the water supply source. Extinguish fire. If necessary, the fire hydrant apparatus 1 may be provided with a fire-extinguishing agent supply source, for example, a foam stock solution supply source, and the foam stock solution may be added to the fire-extinguishing water and discharged from the nozzle 6.

  7 is a discharge inspection device having a flow path inside the device, and includes a tubular body 7c and a connection base portion 7a connected to the three-way switching valve 4, and is appropriately selected according to the type of nozzle of the fire hydrant device to be inspected. And a pressure gauge 8 for measuring the discharge pressure of the extinguishing agent discharged from the discharge inspection device 7. The tubular body 7c is formed of a flexible material in consideration of ease of handling at the time of inspection of the discharge inspection device 7, and is formed of, for example, a shape retaining hose or a rubber hose. Further, the discharge inspection device 7 flows through a flow path from the three-way switching valve 4 in the fire hydrant device 1 to the discharge nozzle 6 of the fire hose 5 in a state where the discharge nozzle is connected to the nozzle connection end 7b. The pressure loss equivalent to the pressure loss generated in the extinguishing agent is configured to be generated in the extinguishing agent flowing in the discharge inspection device 7. Specifically, although not shown, a pressure adjusting means, for example, an orifice is provided in the flow path in the discharge inspection device 7. In addition, as a nozzle connected to the nozzle connection end 7b of the discharge inspection device 7, the nozzle 6 of the fire hydrant device 1 may be moved and connected as shown in FIG.

  The three-way switching valve 4 includes one inlet 4c and two outlets 4a and 4b. The inlet 4c is connected to the primary side pipe P of the three-way switching valve 4, and one outlet 4a is used for the fire extinguishing. A hose 5 is connected via a pipe P. The three-way switching valve 4 is always open, that is, at the time of fire standby, the outlet 4a is in an open state so that the fire can be extinguished by discharging a fire extinguisher from the nozzle 6 via the fire hose 5. 4b is in a closed state. If it is in this state, by opening the fire hydrant valve 3, the fire extinguisher flows from the three-way switching valve 4 to the flow path on the fire hose 5 side and is discharged from the nozzle 6. That is, in this state, it is possible to discharge the fire extinguisher from the nozzle 6 toward the fire.

  The discharge inspection device 7 is connected to the other outlet 4b of the three-way switching valve 4 by the connection base portion 7a. Therefore, by connecting the discharge inspection device 7 to the three-way switching valve 4, the flow path on the fire hose 5 side and the flow path on the discharge inspection device 7 side can be switched on the secondary side of the three-way switching valve 4. Two channels are formed.

  The discharge check device 7 is connected to the three-way switching valve 4, and the three-way switching valve 4 is operated so that the outlet 4a is in the open state and the outlet 4b is in the closed state, and the outlet 4a is in the closed state and the outlet 4b is in the open state. Then, the secondary side flow path of the three-way switching valve is switched from the flow path on the fire hose 5 side to the flow path on the inspection device 7 side. If the fire hydrant valve 3 is opened in this state, the fire extinguisher flows into the flow path from the three-way switching valve 4 to the inspection device 7. That is, in this state, the discharge checking device 7 can check the discharge of the fire hydrant device 1. In the present invention, since the discharge inspection device 7 is connected to the secondary side of the three-way switching valve 4 and the discharge inspection is performed, the discharge inspection device 7 can inspect including the three-way switching valve 4. This means that the structure is on the primary side (when the fire-extinguishing nozzle 6 is moved to the discharge inspection device 7 for inspection, the fire-extinguishing nozzle 6 can also be inspected).

  As for the position where the three-way switching valve 4 is provided, the three-way switching valve 4 may be on the primary side of the fire hose 5 in order to prevent water from passing through the fire hose 5 during discharge inspection. However, it is preferable to provide the three-way switching valve 4 on the primary side of the fire hose 5 and on the secondary side of the fire hydrant valve 3. This is because the secondary side of the fire hydrant valve 3 is not filled with pressurized water of high primary pressure, so that the three-way switching valve 4 can be easily provided, and the function and performance of the fire hydrant valve 3 can be checked at the time of discharge inspection. This is because More preferably, the primary side of the fire extinguishing hose 5 and the secondary side of the pressure regulating valve 2 are good. This is because when the three-way switching valve 4 is provided on the primary side of the pressure regulating valve 2, it is necessary to provide a means having a pressure reducing function equivalent to the pressure regulating valve 2 in the discharge inspection device 7. This is because it is not necessary to provide a means having such a pressure reducing function, and it is possible to obtain an advantage that the function and performance of the pressure regulating valve 2 can be checked during the discharge check. In view of the above, in the present embodiment, the three-way switching valve 4 is provided on the primary side of the fire hose valve 5 and on the secondary side of the fire hydrant valve 3 and the pressure regulating valve 2.

  Next, a discharge inspection method for a fire hydrant apparatus that is performed using the fire hydrant apparatus 1 and the discharge inspection apparatus 7 configured as described above will be described.

The discharge inspection method using the discharge inspection apparatus of the present invention is carried out by the following process.
Step 1: The discharge inspection device 7 is connected to the outlet 4b of the three-way switching valve 4 of the fire hydrant device 1 through its connection base 7a as shown by an arrow A1 in FIG.
Step 2: Connect a nozzle appropriately selected according to the type of the nozzle 6 of the fire hydrant apparatus 1 to be inspected to the connection end 7b of the discharge inspection apparatus 7, or remove the nozzle 6 itself of the fire hydrant apparatus 1 from the fire hose 5 Then, it is connected to the nozzle connection end 7b of the discharge inspection device 7 as indicated by an arrow A2 in FIG.
Step 3: Operate the three-way switching valve 4 so that the outlet 4a is open and the outlet 4b is closed. The outlet 4a is closed and the outlet 4b is opened. The road is switched from the flow path on the fire hose 5 side to the flow path on the inspection device 7 side. In addition, about the said process 1 thru | or the process 3, you may replace the front and back suitably, respectively.
Step 4: The hydrant valve 3 of the hydrant apparatus 1 is opened.
Step 5: The extinguishing agent is discharged from the discharge check device 7, and the discharge pressure is measured by the pressure gauge 8 to check whether the discharge pressure of the fire hydrant device 1 satisfies a predetermined value.

  By performing the inspection as described above, the primary side configuration including the three-way switching valve 4 in the fire hydrant apparatus 1, that is, the three-way switching valve 4, the fire hydrant valve 3, the pressure regulating valve 2, and the pipe P connecting them, When the nozzle 6 is moved to the discharge inspection device 7 for inspection, it can be checked by measuring the discharge pressure whether the nozzle 6 has a predetermined function and performance.

  A fire hydrant device 100 that further embodies the fire hydrant device 1 as described above will be described with reference to FIG. In addition, what attached | subjected the same drawing code | symbol as the fire hydrant apparatus 1 has the same name and function.

  In FIG. 2, a fire hydrant device 100 is a so-called internally wound fire hydrant device that is installed in, for example, a tunnel or the like and contains a fire hose 5 in an inner winding. The fire hydrant apparatus 100 includes a hose bucket 12 that forms a hose accommodating portion 11 that accommodates a fire hose 5 in an inner winding, a three-way switching valve 4, a pressure adjustment valve 2, a fire hydrant valve 3, and the like in a housing 10. Yes.

  The hose bucket 12 includes two rod-like bodies 15, 15 extending from the upper surface of the inner wall of the housing 10 to the lower surface of the inner wall, and two pieces bent in a substantially L shape extending from the rod-shaped bodies 15, 15 to the back of the inner wall of the housing 10. The fire extinguishing hose 5 is drawn out and accommodated from a central opening 12a formed by the strips 16 and 16 and formed between the two rod-like bodies 15. A corner opening is provided between the strips 16 and 16 of the hose bucket 12 and the inner wall upper surface and the inner wall lower surface of the housing 10. Accordingly, when the fire hose 5 is accommodated in the hose bucket 12 from the central opening 12 a of the hose bucket 12, that is, in the hose accommodating part 11, which fire extinguishing hose 5 enters the hose accommodating part 11 from the corner opening. It is possible to visually check whether the wire is wound, and the fire hose 5 can be pushed in and adjusted by putting the hand into the hose accommodating portion 11 from the corner opening. Therefore, it is possible to easily wrap the fire hose 5 in the hose accommodating portion 11 and accommodate it.

  The housing 10 has a front opening 10a on its front surface, and the upper door 13 and the lower door provided on the upper and lower edges of the opening 10a via hinges that allow the front opening 10a to be opened and closed. A forwardly inclined door 14 as a side door is provided. That is, the housing 10 includes a door divided into an upper door 13 and a forward inclined door 14 as a lower door on the front surface. Thereby, the dimension which protrudes outward can be shortened when the door of the front of a housing | casing opens a door compared with the fire hydrant apparatus which consists of one door.

  The forwardly inclined door 14 is provided such that when the door is opened, the central opening 12a of the hose accommodating portion 11 is exposed to the outside so that the fire hose 5 can be pulled out from the opening 12a. Thereby, in order to pull out the fire hose 5 from the hose accommodating portion 11, only the forward inclined door 14 needs to be opened.

  The upper door 13 is provided so as to cover the opening / closing operation part of the three-way switching valve 4 housed in the housing 10 when the door is closed. Thereby, it can prevent that an operator operates the opening / closing operation part of the three-way switching valve 4 accidentally by closing the upper door 13 at the time of fire occurrence.

  A hose guide 17 through which the fire hose 5 is inserted, an opening / closing lever 19 of the fire hydrant valve 3, a nozzle holder 60h of the universal angle nozzle 60, and the like are provided on the inner surface side of the forward inclined door 14. For example, a mechanism portion of the opening / closing lever 19 is built in the forward tilting door 14, and a back plate 14 a covering the mechanism is provided on the inner surface side of the forward tilting door 14. The lever 19 is provided on the back plate 14a. Furthermore, the forward tilting door 14 has a recess 14 b at a position corresponding to the position of the hose accommodating portion 11.

  The hose guide 17 is constructed so as to bridge two vertical bar-like bodies erected vertically on the inner surface of the forward-tilting door 14 and the upper ends of the two bar-like bodies and to the forward-tilting door. It consists of a horizontal bar-shaped body provided so as to go in the horizontal direction. That is, the hose guide 17 has a substantially U shape as a whole. An insertion portion through which the fire hose 5 is inserted is formed inside the hose guide 17, and a guide surface that contacts the fire hose 5 when the fire hose 5 is pulled out is formed on the inner surface of the hose guide 17. Yes. Thereby, when the operator pulls out the fire hose 5, the fire hose 5 is pulled out while being in contact with the guide surface of the hose guide 17. For this reason, the movement of the fire hose 5 is appropriately limited by the frictional resistance with the guide surface. Therefore, the hose guide 17 can prevent the fire hose 5 from coming out to an extent not intended by the operator.

  The universal angle nozzle 60 includes a discharge port portion 60a and a character-shaped connection portion 60b, and connects the discharge port portion 60a and the fire hose 5 via a character-shaped connection portion 60b. The connecting portion between 60a and the letter-shaped connecting portion 60b is rotatable. As a result, when the universal angle nozzle 60 is accommodated in the nozzle holder 60h in a direction parallel to the upper side of the forward tilt door 14, the connection side of the square connection portion 60b with the fire hose 5 is connected to the hose accommodating portion 11. The fire hose 5 is also directed toward the central opening 12a side of the hose accommodating portion 11 by being directed toward the central opening 12a side. For this reason, it is possible to reduce the slack of the fire hose 5 between the hose accommodating portion 11 and the nozzle holder 60h, and even if there is a slack, the slack portion of the hose accommodating portion 11 is free from the central opening 12a. It can be accommodated in a space. Therefore, a malfunction caused by the slack of the fire hose 5 between the hose housing part 11 and the nozzle holder 60h (for example, the fire hose 5 is sandwiched between the hose housing part 11 and the forward inclined door 14 before Inability to close the tilted door 14 and the provision of a gap between the hose accommodating portion 11 and the forward tilted door 14 for the purpose of preventing the tilted door 14 can be eliminated.

  In a present Example, the malfunction which arises when there exists slack of the fire extinguishing hose 5 between the hose accommodating part 11 and the nozzle holder 60h can further be eliminated by having the recessed part 14b. That is, by accommodating the slack portion of the fire hose 5 between the hose accommodating portion 11 and the nozzle holder 60h in the concave portion 14b, the above problem can be further eliminated.

  Reference numeral 18 denotes an operation nameplate for displaying precautions for operation of the fire hydrant device, and is provided so as to be raised and lowered in conjunction with opening and closing of the forward tilt door 14 by a raising and lowering means not shown. In other words, the operation name plate 18 is provided so as to stand up from the inner surface side of the forward tilt door 14 when the forward tilt door 14 is opened and to face down to the inner surface side of the forward tilt door 14 when the forward tilt door 14 is closed. Thus, when the front tilt door 14 is opened, the operation name plate 18 can stand up from the inner surface of the front tilt door 14 so that the operator can easily confirm it. When the front tilt door 14 is closed, the operation name plate 18 is displayed. Can be in a state of being inclined with respect to the inner surface of the forward tilting door 14, and it is possible to eliminate the need to secure a space for the operation nameplate 18 to stand in the housing 10.

DESCRIPTION OF SYMBOLS 1 Fire hydrant apparatus 2 Pressure control valve 3 Fire hydrant valve 4 Three-way switching valve 5 Fire hose 6 Nozzle 7 Emission check apparatus

Claims (2)

A tubular body, a connection base, and a nozzle connection end capable of connecting a fire extinguishing nozzle are provided, and a pressure loss equivalent to a pressure loss generated in a fire extinguishing agent flowing in the fire hose side flow path is discharged to the inspection apparatus side flow path. A discharge inspection device provided with a pressure adjusting means for generating a flowing fire extinguisher,
The tubular body is formed of a flexible material such as a shape-retaining hose or a rubber hose, and the discharge inspection device used for a fire hydrant device.   The discharge inspection device for use in a fire hydrant device according to claim 1, wherein the nozzle connection end portion can be connected by moving a fire extinguishing nozzle of the fire hydrant device.

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