JP4512229B2 - Radiation hose cleaning device, inspection device, cleaning method and inspection method for fire extinguishing equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cleaning device, an inspection device, a cleaning method and an inspection method for a radiation hose of a fire extinguishing facility, and more particularly to a cleaning device, an inspection device, a cleaning method and an inspection method for a radiation hose of a mobile powder fire extinguishing facility.
[0002]
[Prior art]
Conventionally, the mobile powder fire extinguishing equipment shown in FIG. 4 is known. The mobile powder fire extinguishing equipment includes a powder storage tank 2 that stores powder fire extinguishing chemicals and is housed in a storage box 1, a high-pressure carbon dioxide cylinder 3 that is integrally attached to the outside of the powder storage tank 2, and a powder. A siphon-type discharge pipe 4 that allows the inside and the outside of the storage tank 2 to communicate with each other, a radiation hose 6 that is connected to the discharge pipe 4 via a discharge valve 5 outside the powder storage tank 2, and a tip portion of the radiation hose 6 The radiating hose 6 is held in a wound state inside the storage box 1 via a hose bracket 9 or the like. Further, the outlet of the high-pressure carbon dioxide gas cylinder 3 communicates with the inside of the powder storage tank 2 through the gas introduction pipe 10.
[0003]
In the mobile powder fire extinguisher having such a structure, in the event of a fire, first, the valve handle 3A provided at the upper end of the high-pressure carbon dioxide gas cylinder 3 is opened, and high-pressure carbon dioxide gas is introduced into the powder storage tank 2. Supply and pressurize. Next, the discharge valve 5 is opened, the radiation hose 6 is removed from the hose bracket 9, the radiation hose 6 is stretched in a state where the radiation nozzle 8 is gripped, and the nozzle opening / closing valve 7 is opened. The fire extinguishing operation is performed by radiating the powder fire-extinguishing agent in the powder storage tank 2 from the radiation nozzle 8 at the tip of the radiation hose 6 by the pressure pushing action of the high-pressure carbon dioxide gas supplied to the interior of the material 2.
[0004]
After the extinguishing operation, the nozzle opening / closing valve 7 is closed, the discharge valve 5 is closed, and the valve handle 3A of the high-pressure carbon dioxide cylinder 3 is closed. Next, the radiation hose 6 is held in a wound state inside the storage box 1 via the hose bracket 9 or the like. The replacement of the high-pressure carbon dioxide cylinder 3 and the refilling of the powder extinguishing agent into the powder storage tank 2 are performed by a worker on the manufacturer side.
[0005]
[Problems to be solved by the invention]
By the way, there is no problem when the entire amount of the powder fire extinguishing agent in the powder storage tank 2 is emitted by the execution of the fire extinguishing operation. However, if the fire extinguishing operation is finished with the powder extinguishing agent still remaining in the powder storage tank 2, the powder extinguishing agent remains in the radiation hose 6, and if left untreated, the radiation hose 6 is left. There is a risk of clogging. In particular, when the radiation hose 6 is held in a wound state inside the storage box 1 after the extinguishing operation, the residual powder fire extinguishing agent in the radiation hose 6 is curved below the radiation hose 6 as shown in FIG. The clogging 14 is generated which is strongly solidified with a bias toward the portion. If such clogging 14 is left as it is, the powder fire extinguishing agent will not radiate when the mobile powder fire extinguishing equipment is reused, and the next fire extinguishing operation will be hindered. For this reason, the cleaning which discharges | emits the residual powder fire extinguishing agent in the radiation hose 6 in the front | former stage of a mobile powder fire extinguishing equipment reuse is requested | required. However, the conventional mobile powder fire extinguishing equipment does not have a function of cleaning the radiation hose.
[0006]
Therefore, the present invention enables cleaning that discharges the residual powder fire extinguishing agent in the radiation hose, reliably emits the powder fire extinguishing agent at the time of reuse, and performs the fire extinguishing operation. It is an object to provide a cleaning device and a cleaning method. Another object of the present invention is to provide an inspection device and an inspection method for a radiation hose of a fire extinguishing facility that can conduct a continuity test of the radiation hose of the fire extinguishing facility.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, a cleaning device for a radiation hose of a fire extinguishing facility according to claim 1 comprises a powder storage tank in which a powder extinguishing agent is stored and fixed, and a pressure extrusion to the inside of the powder storage tank. A gas cylinder capable of supplying a high-pressure gas for use, a discharge pipe communicating the inside and the outside of the powder storage tank, and a radiation hose connected to the discharge pipe via a discharge valve outside the powder storage tank, In the powder fire extinguishing equipment configured to radiate powder fire extinguishing chemical from the radiation hose by pressurizing and pushing the high pressure gas supplied from the gas cylinder to the inside of the powder storage tank, the cleaning gas is disposed downstream of the discharge valve. The introduction port is provided so as to be releasably closed by a plug that closes the cleaning gas introduction port .
[0008]
In order to achieve the above object, a cleaning method for a radiation hose of a fire extinguishing facility according to claim 2 comprises a powder storage tank in which a powder fire extinguishing agent is stored and fixed, and an inside of the powder storage tank. A gas cylinder capable of supplying a high-pressure gas for pressure extrusion; a discharge pipe communicating the inside and the outside of the powder storage tank; and a radiation hose connected to the discharge pipe via a discharge valve outside the powder storage tank. In the powder fire extinguishing equipment configured to radiate a powder fire extinguishing agent from the radiation hose by pressurizing and extruding a high pressure gas supplied from the gas cylinder to the inside of the powder storage tank, the inside of the powder storage tank from the gas cylinder After the extinguishing operation of radiating the powder fire extinguishing agent from the radiation hose by the pressure extruding action of the high pressure gas supplied to the Closed valve to off valve, the cleaning gas inlet port provided to close to be opened by the plug on the downstream side of the dissipating-off valve is opened by removing the plug, cleaning gas cylinder to the opened inlet And a cleaning gas is supplied from the cleaning gas cylinder to the inside of the radiation hose to discharge and remove the residual powder inside the radiation hose.
[0009]
A radiation hose inspection device for a fire extinguishing facility according to a third aspect of the present invention includes a powder storage tank that stores and fixes a powder fire extinguishing agent, and a gas cylinder that can supply high-pressure gas for pressure extrusion into the powder storage tank. A discharge pipe for communicating the inside and the outside of the powder storage tank; and a radiation hose connected to the discharge pipe via a discharge valve outside the powder storage tank, from the gas cylinder to the inside of the powder storage tank by pressure extrusion effect of the supplied high-pressure gas, in the produced powder fire-extinguishing system to emit chemical powder from said radiation hose, inspection gas inlet downstream of the discharge valve, the inspection gas It is characterized in that it is provided so that it can be opened by a plug that closes the introduction port .
[0010]
According to a fourth aspect of the present invention, there is provided a method for checking a radiation hose of a fire extinguishing facility, wherein the discharge valve is closed when the powder fire extinguishing device is inspected, and the downstream side of the discharge valve the inspection gas inlet port provided to close to be opened by the plug to the side opening by removing the plug, to connect the inspection gas cylinder to the opened inlet, the radiation of the gas from the gas cylinder It is characterized in that it is supplied into a hose and the conduction test of the radiation hose is performed.
[0011]
[Action]
According to the first and second aspects of the present invention, the cleaning gas inlet is opened in a state before reuse with the release valve closed, and a cleaning gas cylinder is connected to the inlet, and the cleaning gas By supplying the cleaning gas from the gas cylinder to the inside of the radiation hose, the residual powder inside the radiation hose can be easily released and removed. In addition, the supply pressure of the cleaning gas can be adjusted.
[0012]
According to the third and fourth aspects of the invention, similar to the operation in the case of the cleaning, the release valve is closed, the inspection gas introduction port is opened, and the inspection gas cylinder is connected to the introduction port. Thus, by supplying gas from the gas cylinder into the radiation hose and confirming the radiation state of the gas from the radiation nozzle at the tip of the radiation hose, the conduction test of the radiation hose can be easily performed.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an overall configuration diagram showing an embodiment of the present invention, and FIG. 2 is a longitudinal sectional view showing an example of a discharge valve. The structure and operation of the storage box 1, the powder storage tank 2, the high-pressure carbon dioxide gas cylinder 3, the siphon type discharge pipe 4, the radiation hose 6, the nozzle on-off valve 7, the radiation nozzle 8, the hose bracket 9, the gas introduction pipe 10, etc. Since this is the same as the conventional example shown in FIG. 4, the same reference numerals are given and their detailed description is omitted. 1 and 2, a cleaning or inspection gas introduction port 11 is provided on the downstream side of the discharge valve 5, and this introduction port 11 is normally closed by a plug 12.
[0014]
The release valve 5 is a manually opened / closed ball valve, and includes a valve box 5A, a valve body 5B, a valve stem 5C, and a handle 5D. The opening / closing operation of the handle 5D is performed via the valve stem 5C in the valve chamber 5E in the valve box 5A. The valve body 5B is switched to the valve open state shown in the figure or the valve closed state rotated 90 degrees around the axis of the valve stem 5C from the valve open state. Further, the valve chamber 5E communicates with the upstream passage 5F and the downstream passage 5G, the outlet of the discharge pipe 4 is connected to the upstream passage 5F, and the inlet of the radiation hose 6 is connected to the downstream passage 5G. In addition, a cleaning or inspection gas introduction port 11 is provided in communication with the downstream passage 5G.
[0015]
In the above-described configuration, the plug 12 shown in FIG. 2 is used by a manufacturer worker for cleaning to release and remove the powder fire extinguishing agent remaining in the radiation hose 6 in a state before reuse after the discharge valve 5 is closed after the extinguishing operation. Is opened, the cleaning or inspection gas introduction port 11 is opened, and the cleaning gas cylinder 13 (see the two-dot chain line in FIG. 1) brought in by the manufacturer's worker is connected to the opened introduction port 11, The valve is opened to supply the cleaning gas from the cleaning gas cylinder 13 into the radiation hose 6 and the nozzle opening / closing valve 7 is opened. Thereby, the residual powder inside the radiation hose 6 can be discharged and removed from the radiation nozzle 8. After releasing and removing the residual powder, the inlet 11 and the cleaning gas cylinder 13 are disconnected, and the inlet 11 is closed by the plug 12.
[0016]
By adjusting the opening of the valve of the cleaning gas cylinder 13 by an operator on the manufacturer side, the supply pressure of the cleaning gas can be adjusted to release and remove the residual powder inside the radiation hose 6, thereby reducing the supply pressure of the cleaning gas to the radiation hose. It is possible to perform cleaning by adjusting to an appropriate value adapted to the aging degree of 6. That is, when the aging degree of the radiation hose 6 is small, the supply pressure is set high to release and remove the residual powder. When the aging change degree of the radiation hose 6 is large, the supply pressure is set low to remain. By discharging and removing the powder, the radiation hose 6 having a large degree of aging can be protected.
[0017]
On the other hand, when the elapsed time from the time when the radiation hose 6 is held in the wound state inside the storage box 1 after the completion of the fire fighting operation to the start of cleaning of the radiation hose 6 by the worker on the manufacturer side is slightly longer, it is shown in FIG. The clogging 14 of the residual powder that is generated in the lower curved portion of the radiation hose 6 becomes strong. In this way, when the cleaning gas is supplied to the radiation hose 6 where the clogging 14 that has become strong over time is generated at a high supply pressure, the powder particles in the upstream portion of the clogging 14 become the powder particles on the downstream side. The phenomenon that the clogging 14 is further strengthened due to the pressing occurs, and the clogging 14 is prevented from collapsing. Therefore, by adjusting the valve opening of the cleaning gas cylinder 13 by the worker on the manufacturer side, the low-pressure cleaning gas is intermittently supplied, and a small impact is repeatedly applied to the powder particles in the upstream portion of the clogging 14. Residual powder can be reliably discharged and removed by sequentially clogging the clogging 14 from the upstream side toward the downstream side.
[0018]
On the other hand, by adjusting the supply pressure of the cleaning gas by the worker on the manufacturer side, the residual powder discharged from the radiation nozzle 8 is prevented from being excessively scattered, and the powder fire extinguishing agent is applied to the structure around the fire extinguishing equipment. It is also possible to avoid the inconvenience of adhesion.
[0019]
In the above-described embodiment, the discharge valve 5 provided with the cleaning or inspection gas introduction port 11 in communication with the downstream passage 5G is used. However, as shown in FIG. 3, the downstream passage 5G of the valve box 5A is used. The hose adapter 15 may be connected to the discharge valve 5, and the hose adapter 15 may be provided with a cleaning or inspection gas inlet 11. In addition, in this discharge valve 5, the same code | symbol is attached | subjected to the same part as the discharge valve 5 of FIG.
[0020]
Next, the case where the radiation hose 6 of the mobile powder fire extinguishing equipment having the above configuration is inspected will be described. This inspection can be performed by the same operation as the above cleaning operation and by using the same gas cylinder as the cleaning gas cylinder 13. That is, the plug 12 shown in FIG. 2 is removed to open the cleaning or inspection gas introduction port 11, the inspection gas cylinder 13 identical to the cleaning gas cylinder 13 is connected to the opened introduction port 11, and the valve is opened. Then, the inspection gas is supplied from the inspection gas cylinder 13 to the inside of the radiation hose 6 and the nozzle opening / closing valve 7 is opened. Thereby, the conduction | electrical_connection test of the radiation hose 6 can be performed by confirming the radiation state of the gas from the radiation nozzle 8 of the front-end | tip of the radiation hose 6. FIG. After the inspection, the connection between the introduction port 11 and the inspection gas cylinder 13 is released, and the introduction port 11 is closed by the plug 12.
[0021]
Incidentally, the cleaning and inspection of the radiation hose 6 of the above-mentioned fire extinguishing equipment is performed to remove the powder fire extinguishing agent remaining in the radiation hose 6, whereas the inspection is performed in the radiation hose 6. Even if there is no powder fire extinguishing agent, the purpose of both is different in that it is performed to check the quality of the conduction state of the radiation hose 6, and the operation method itself is exactly the same.
[0022]
The cleaning or inspection gas cylinder 13 may be arbitrarily brought into the field by an operator during use, or may be installed in advance as a cleaning or inspection gas cylinder kit together with a fire extinguishing facility in advance. The cleaning or inspection gas cylinder kit includes a nitrogen gas cylinder, a pressure regulator, a hose, and a gas inlet connection jig.
[0023]
【The invention's effect】
According to the first and second aspects of the present invention, the cleaning gas inlet is opened in the previous stage of reuse with the release valve closed, and a cleaning gas cylinder is connected to the inlet, By supplying the cleaning gas from the cleaning gas cylinder to the inside of the radiation hose, the residual powder inside the radiation hose can be released and removed. Can be executed. In addition, by adjusting the supply pressure of the cleaning gas, it is possible to discharge and remove residual powder by setting the supply pressure according to the aging of the radiant hose, thus protecting the radiant hose with large aging. I can plan. In addition, even after a fire extinguishing operation is completed, even if the clogging is biased to the lower curved portion of the radiation hose held in a wound state inside the containment box, a low-pressure cleaning gas is intermittently supplied. Thus, the residual powder can be surely released and removed by sequentially breaking the strong clogging. In addition, it is possible to prevent the residual powder discharged from the radiation nozzle from being excessively scattered and to avoid the disadvantage that the powder fire extinguishing agent adheres to structures around the fire extinguishing equipment.
[0024]
According to the invention concerning Claim 2 and Claim 3, there exists an advantage that the reliability test | inspection of a fire extinguishing installation can be improved by the continuity test | inspection of a radiation hose being easily performed.
[Brief description of the drawings]
FIG. 1 is an overall configuration diagram showing an embodiment of the present invention.
FIG. 2 is a longitudinal sectional view showing an example of a discharge valve.
FIG. 3 is a longitudinal sectional view showing another example of the discharge valve.
FIG. 4 is an overall configuration diagram of a conventional example.
FIG. 5 is an explanatory view showing, in an enlarged manner, clogging that is generated in a biased manner at the lower curved portion of the radiation hose.
[Explanation of symbols]
2 Powder storage tank 3 Gas cylinder (high pressure carbon dioxide gas cylinder)
4 Release pipe 5 Release valve 6 Radiation hose 11 Gas inlet for cleaning or inspection 13 Gas cylinder for cleaning or inspection

Claims (4)

A powder storage tank for storing and fixing a powder fire extinguishing agent, a gas cylinder capable of supplying a high pressure gas for pressurized extrusion into the powder storage tank, a discharge pipe communicating the inside and the outside of the powder storage tank, and A radiation hose connected to the discharge pipe via a discharge valve outside the powder storage tank, and the powder from the radiation hose by the pressure extrusion action of high-pressure gas supplied from the gas cylinder to the inside of the powder storage tank In the powder fire extinguishing equipment configured to radiate a fire extinguishing agent, a cleaning gas introduction port is provided on the downstream side of the discharge valve so as to be openably closed by a plug. Radiation hose cleaning device. A powder storage tank for storing and fixing a powder fire extinguishing agent, a gas cylinder capable of supplying a high pressure gas for pressurized extrusion into the powder storage tank, a discharge pipe communicating the inside and the outside of the powder storage tank, and A radiation hose connected to the discharge pipe via a discharge valve outside the powder storage tank, and the powder from the radiation hose by the pressure extrusion action of high-pressure gas supplied from the gas cylinder to the inside of the powder storage tank In the powder fire extinguishing equipment configured to radiate the fire extinguishing agent, the extinguishing operation of radiating the powder extinguishing agent from the radiation hose is completed by the press-out action of the high pressure gas supplied from the gas cylinder to the inside of the powder storage tank later, closed valve the discharge valve, cleaning is provided to close to be opened by the plug on the downstream side of the dissipating off valve The scan inlet opening by removing the plug, to connect the cleaning gas cylinder to the opened inlet, by supplying a cleaning gas from the cleaning gas bottle inside the radiation hose, residual internal radiation hose A method for cleaning a radiation hose of a fire extinguishing facility, characterized by discharging and removing powder. A powder storage tank for storing and fixing a powder fire extinguishing agent, a gas cylinder capable of supplying a high pressure gas for pressurized extrusion into the powder storage tank, a discharge pipe communicating the inside and the outside of the powder storage tank, and A radiation hose connected to the discharge pipe via a discharge valve outside the powder storage tank, and the powder from the radiation hose by the pressure extrusion action of high-pressure gas supplied from the gas cylinder to the inside of the powder storage tank In the powder fire extinguishing equipment configured to radiate a fire extinguishing agent, an inspection gas introduction port is provided on the downstream side of the discharge valve so as to be openably closed by a plug. Radiation hose inspection device. A powder storage tank for storing and fixing a powder fire extinguishing agent, a gas cylinder capable of supplying a high pressure gas for pressurized extrusion into the powder storage tank, a discharge pipe communicating the inside and the outside of the powder storage tank, and A radiation hose connected to the discharge pipe via a discharge valve outside the powder storage tank, and the powder from the radiation hose by the pressure extrusion action of high-pressure gas supplied from the gas cylinder to the inside of the powder storage tank In the powder fire extinguishing equipment configured to radiate a fire extinguishing agent, when the powder fire extinguishing equipment is inspected, the discharge valve is closed and is provided on the downstream side of the discharge valve so as to be openable by a plug . the inspection gas inlet opening by removing the plug, to connect the inspection gas cylinder to the opened inlet, the radiation Ho gas from the gas cylinder Inspection method for radiation hose extinguishing systems, characterized in that to supply within perform continuity testing of the radiation hose.

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