JP3616461B2 - Emergency water intake device for water pipe - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an emergency water intake device for a water pipe for utilizing stagnant water in a water pipe such as a water pipe at the time of a disaster.
[0002]
[Prior art]
Recently, disasters such as earthquakes, typhoons, heavy rains and landslides caused by these have occurred extensively and frequently in various parts of Japan. And due to these disasters, power outages and water outages occur, and it takes a lot of time to recover, and securing electricity and tap water during that time has become a major problem. In particular, water is directly related to life and is necessary for a long time, and it is absolutely necessary to secure it at an early stage.
[0003]
When a water pipe that is a water distribution pipe is damaged due to a disaster, the emergency shutoff valve of the reservoir is activated to stop the supply of water from the reservoir, prevent secondary disasters, and distribute the water until the damaged pipe is restored. Will stop. In the conventional emergency water supply system, the water supply vehicle was dispatched and supplied the minimum amount of water, but in the case of a large-scale disaster such as the Great Hanshin Earthquake, the water supply vehicle could not actually be deployed. Relied on human power for a while.
[0004]
[Problems to be solved by the invention]
However, in the conventional emergency water supply system as described above, there is a possibility that even drinking water cannot be secured for a considerable time immediately after the disaster, and the life of the victim is exposed to a dangerous state. In addition, the minimum amount of water necessary for daily life, such as hand-washing water and cooking water, cannot be ensured at all.
[0005]
If the water pipe is damaged due to a normal disaster, the emergency shutoff valve of the reservoir is activated, the supply of water from the reservoir is stopped, and the water distribution is stopped until it is restored. However, the running water pipe is piped along the ground surface at a predetermined depth (for example, 1.2 to 2 m) along the topography or overcast, and the emergency shutoff valve of the reservoir is activated or the running water pipe is Even if the part breaks down and water flows out, there is water staying in the water pipe corresponding to the valley of the waves. However, there is no utilization system for the high-quality water that has stayed in the water flow pipe in the past, and there is no actual idea to use it, and its utilization is desired.
[0006]
Therefore, the present invention has been made in view of the above circumstances, and an emergency water intake device for a water pipe that can use high-quality water staying in the water pipe even if water distribution from the reservoir stops due to a disaster. The issue is to provide.
[0007]
[Means for Solving the Problems]
In order to solve the above problems, the emergency water intake device of the present invention is in a position where water is retained in the water flow pipe when water distribution is interrupted in a laid state of the water pipe buried in a wave shape along the ground surface. An insertion pipe that extends through the opening of the flowing water pipe to substantially the vicinity of the bottom of the pipe, and a spherical on-off valve that is provided above the insertion pipe and has a water passage hole at the center,
The insertion pipe is composed of a pipe that can pass through the water passage hole of the open / close valve when opened, and an elastic seal material provided on the outer periphery of the upper end of the pipe. The insertion tube is fitted in a liquid-tight manner .
According to this feature, good quality water remains in the drainage pipe except for the peaks of the corrugated drainage pipe even in the event of a water outage, and a pipe such as a hose is connected to the intake pipe of this emergency water intake system to open and close it. Since the water can be pumped out only by opening the valve, this high-quality residual water can be easily obtained without water pressure in the water pipe. In addition, in the operation of inserting the insertion pipe into the flowing water pipe, the opening of the flowing water pipe is sealed with an elastic sealing material, and the insertion pipe extends near the bottom surface of the flowing water pipe, so that a large amount of water can be pumped out. it can.
[0009]
In the emergency water intake apparatus of the present invention, it is preferable that a filter is provided at the distal end of the insertion pipe so that the foreign matter settled on the bottom surface of the water flow pipe can be removed.
By doing this, it is possible to remove high-quality water by removing the foreign substances that have settled on the bottom surface of the water pipe.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings by way of embodiments.
[0013]
FIG. 1 is a flow sheet diagram of a water distribution facility in which an embodiment of the present invention is installed, and FIGS. 2, 3 and 4 are cross-sectional views in an emergency water intake of a water pipe showing an embodiment of the present invention. In FIG. 2, reference numeral 1 denotes an emergency water intake device for a water pipe (hereinafter simply referred to as a water intake device). In this water intake device 1, the laying state of the water pipe 2, which is a water distribution pipe, is undulated as shown in FIG. A branch pipe 3 is provided at a predetermined portion of the flowing water pipe 2 located almost at the bottom, the branch pipe 3 is extended in a vertical direction by a predetermined height, and an opening / closing valve 10 is provided at a predetermined position of the branch pipe 3. is there. The position of the water intake device 1 is preferably at the lowermost part of the valley, but is not limited to the valley and may be anywhere as long as water is present in the water pipe 2.
[0014]
As shown in FIG. 1, the flow pipe 2 is provided with a gate valve 6 and the like at the outlet so that water distribution can be blocked in the reservoir 5 in an emergency, and at a predetermined interval (for example, 100 to 100) on the downstream side of the flow pipe 2. A gate valve 6 for emergency shut-off may be provided (at intervals of 200 m). Since this flowing water pipe 2 is laid and piped in a 1.2 to 2 meter covering according to the topography, its shape becomes a wave shape along the ground surface. Looking at between A-B and B-C in FIG. 1, valleys D and E are formed in the flowing water pipe 2, so that one of the flowing water pipes 2 is damaged due to a disaster and shut off by the gate valve 6 and distributed. Even if it disappears, in the water flow pipe 2 in the meantime, high-quality water collects around these valleys D and E. The above-mentioned contents are the same when a large-diameter water pipe 2 is branched from a relatively small-diameter water pipe 2 and a gate valve is installed, and high-quality water is also contained in the relatively small-diameter water pipe 2. Has accumulated. In addition, generally, an air valve is provided in the peaks A, B, and C of the water flow pipe 2 so that air can be taken into and discharged from the water flow pipe 2.
[0015]
FIG. 2 shows a first embodiment, in which the ground pipe 4 is excavated to the buried portion of the water pipe 2 and the water pipe 2 in the work manhole 7 constructed in a box shape by concrete or the like is provided with a water intake device. 1 is provided. The water intake device 1 is preferably provided in a water pipe 2 piped in the ground such as a park or public ground serving as an emergency evacuation site.
[0016]
The water intake device 1 includes a branch pipe 3 connected to the main water pipe 2 so as to face upward, a water intake pipe 9 flanged to the upper end thereof, and a water intake pipe 9 rotatably accommodated in the water intake pipe 9. It consists of a spherical on-off valve 10 having a hole 10a and a rotating shaft 11 for rotating it. In particular, this water intake device has flanges sandwiched between the flanges of the branch pipe 3 and the water intake pipe 9, respectively. In addition, an insertion pipe 12 extending to near the bottom surface in the water pipe 2 is provided.
[0017]
The distal end of the insertion tube 12 extends to the vicinity of the bottom surface of the water flow tube 2 as described above, and the distal end is open, and the filter 13 is attached to the opening. The intake pipe 9 is normally closed by an on-off valve 10, and the upper end opening is also closed by a lid plate 15. Therefore, although the inside of the intake pipe 9 to the lower end part of the on-off valve 10 is in communication with the water flowing through the flowing water pipe 2, the water does not flow out to the outside.
[0018]
An opening / closing plate 16 is detachably mounted on the opening of the manhole 7 and can be removed by pulling up the gripping rod 17.
[0019]
The water intake apparatus 1 of the said Example is used for use as follows. For example, when a downstream water pipe 2 or a water pipe connected to the downstream water pipe 2 is damaged due to the occurrence of a large earthquake, the emergency shut-off valve 6 installed at an important point of the water pipe 2 is used to prevent the tap water from overflowing wastefully. Is activated, the supply of tap water from the reservoir 5 is stopped, and the water may be cut off.
[0020]
The use method of the water intake device 1 in this emergency will be described based on FIGS. 3 and 4. The installation position of the water intake device 1 is confirmed by a flow sheet or the like, and an appropriate water intake is selected from the many water intake devices 1 that exist. Select the device and carry the pump and hose to the manhole position of the selected water intake device or bring the pump car (water supply vehicle) closer to the manhole.
[0021]
Next, the open / close plate 16 of the manhole 7 is removed, the cover plate 15 of the water intake pipe 9 is removed as shown in FIG. 3, and the tip connection port 23 of the hose 8 as a pipe extending from the pump 14 is attached to the water pipe 9. At this time, the on-off valve 10 of the water intake pipe 9 is closed, and water does not flow out from the water flow pipe 2 to the outside.
[0022]
Then, as shown in FIG. 4, the water in the water flow pipe 2 can be supplied to a predetermined water supply part (temporary water supply) etc. by rotating the rotating shaft 11, opening the on-off valve 10, and operating the pump 14. become. Here, as shown in FIG. 1, peaks A, B, and C of the water flow pipe 2 are provided with air valves, and here, air A corresponding to the outflow amount of water is supplied into the inflow pipe 2. The water can be pumped out smoothly from the hose 8.
[0023]
In this water intake device 1, the distal end of the insertion pipe 12 extends almost to the bottom surface of the water flow pipe 2, so that almost all of the water remaining in the water flow pipe 2 can be pumped out. Since the filter 13 is provided, the high-quality water can be secured without pumping out the foreign matter precipitated on the bottom surface of the water pipe 2.
[0024]
Next, the installation method of the water intake apparatus which is another embodiment of this invention is demonstrated based on FIGS.
[0025]
First, as shown in FIG. 5, in the first step, the saddle 25 to which the on-off valve 10 having the first connection port 21 and the second connection port 22 is attached is liquid-tightly attached to the flowing water pipe 2 which is an existing pipe. Reference numeral 20 denotes a cap for closing the second connection port 22.
[0026]
In the next step, as shown in FIG. 6, after the drilling tool 26 is attached to the first connection port 21 of the on-off valve 10, the drill 27 of the drilling tool 26 is lowered through the opened on-off valve 10 to remove the existing pipe. A wall surface is perforated to form an opening 29.
[0027]
When the drilling is completed, the drill 27 of the drilling tool 26 accommodates the cut section 28 of the existing pipe inside and is pulled upward through the on-off valve 10.
[0028]
In the next step, the on-off valve 10 is closed, and then the drilling tool 26 is removed from the on-off valve 10. In the next step shown in FIG. 7, the first connection port 21 of the on-off valve 10 is replaced with the drilling tool 26. The cap body 31 having the feeding means 30 for the insertion tube 35 is attached by, for example, screw joining.
[0029]
This insertion tube 35 is an open tube that allows water to flow in the vertical direction, similar to the insertion tube shown in the first embodiment, and is provided with a filter 32 at its tip. However, this insertion tube 35 has a resilient sealing member 33 near its upper end outer periphery, fitted the insertion tube 35 by the elastic sealing member 33 in the open mouth 29 of the branch port 34 or water flow pipe 2 of the saddle in a fluid-tight manner You can wear it.
[0030]
Further, a support body 36 for holding the insertion tube 35 is provided at the tip of the delivery means 30. In this embodiment, the support body 36 is formed of an elastic body and is generally fitted to the insertion tube 35. 7, the insertion tube 35 is suspended by the delivery means 30, and preparation for delivery is completed.
[0031]
In the next step, the on-off valve 10 is opened as shown in FIG. 8, the insertion pipe 35 is inserted downward from the central water passage hole 10a, and the elastic sealing material 33 is fitted and fixed to the branch port 34. Thereafter, the delivery means 30 is pulled up.
[0032]
FIG. 9 shows an emergency water intake device 1 ′ completed by a series of assembling operations as described above. After closing the on-off valve 10 from the state of FIG. 8, the cap plate 31 is replaced with the lid plate 37. Is attached.
[0033]
This structure corresponds to FIG. 2 of the above-described embodiment, and is always housed in a manhole, and is used in an emergency in the same manner as the above-described embodiment. In this case, the saddle has a first connection port and a second connection port in place of the intake pipe 9 of the first embodiment, so that it is possible not only to take out water from the two intake pipes but also to select. It is possible to draw water from either of them.
[0034]
Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments, and modifications and additions within the scope of the present invention are included in the present invention. It is. For example, in the embodiment, the first connection port and the second connection port are provided, but it is obvious that a surrounding case surrounding the water pipe may be used instead of the saddle.
[0035]
In the above-described embodiment, the insertion pipes 12 and 35 are always inserted into the flowing water pipe 2. However, after the on-off valve 10 is opened, the insertion pipe can be inserted from the outside of the saddle or the enclosing case. Is also possible. That is, after the opening 29 is formed as shown in FIG. 6, the cover plate 37 is attached as shown in FIG. 9, and the cover plate 37 is removed in an emergency, and the construction shown in FIGS. It may be inserted.
[0036]
【The invention's effect】
The present invention has the following effects.
[0037]
(A) According to the invention of claim 1, good quality water remains in the water flow pipe except for the peaks of the wavy flow water pipe even when the water is cut off, and a pipe such as a hose is provided in the water intake pipe of the emergency water intake device. Since the body can be connected and the open / close valve is opened, water can be pumped out using the pump, so that this high-quality residual water can be easily obtained without water pressure in the water pipe. In addition, in the operation of inserting the insertion pipe into the flowing water pipe, the opening of the flowing water pipe is sealed with an elastic sealing material, and the insertion pipe extends near the bottom surface of the flowing water pipe, so that a large amount of water can be pumped out. it can.
[0039]
(C) According to the invention of claim 3, it is possible to pump out high-quality water by removing the contaminants precipitated on the bottom surface of the water pipe.
[0042]
[Brief description of the drawings]
FIG. 1 is a flow sheet in which water pipes distributed by natural fall from a reservoir are waved along the ground surface.
FIG. 2 is a cross-sectional view of the first aspect of the emergency water intake of the present invention.
FIG. 3 is a cross-sectional view showing a use state in the emergency water intake section of FIG. 2;
4 is a cross-sectional view showing a use state in the emergency water intake section of FIG. 2;
FIG. 5 is a partially broken cross-sectional view showing the installation work of the emergency water intake device in the second mode.
6 is a partially broken sectional view subsequent to FIG.
7 is a partially broken cross-sectional view subsequent to FIG. 6. FIG.
FIG. 8 is a partially broken cross-sectional view subsequent to FIG.
FIG. 9 is a partially broken sectional view of the emergency water intake device after completion of installation, following FIG. 8;
[Explanation of symbols]
1, 1 'Emergency water intake device 2 Flow pipe 3 Branch pipe 4 Ground 5 Reservoir 6 Gate valve 7 Manhole 8 Hose (pipe)
9 Intake pipe 10 Open / close valve 11 Rotating shaft 12 Insertion pipe 13 Filter 14 Pump 15 Cover plate 16 Open / close plate 20 Cap 21 First connection port 22 Second connection port 23 End connection port 25 Saddle 26 Drilling tool 27 Drill 28 Section 29 Opening 30 Feeding means 31 Cap body 32 Filter 33 Elastic seal material 34 Branch port 35 Insertion tube 36 Support body 37 Cover plate

Claims (2)

When water distribution is interrupted in the laid state of the water pipe buried in a wave shape along the ground surface, it extends to the position where water stays in the water pipe through the opening of the water pipe to almost the bottom of the pipe. An insertion pipe, and a spherical on-off valve provided above the insertion pipe and having a water passage hole at the center thereof,
The insertion pipe is composed of a pipe that can pass through the water passage hole of the open / close valve when opened, and an elastic seal material provided on the outer periphery of the upper end of the pipe. An emergency water intake device, wherein the insertion tube is fitted in a liquid-tight manner . The emergency water intake device according to claim 1, wherein a filter is provided at a distal end of the insertion tube so as to be able to remove foreign substances precipitated on the bottom surface of the water flow tube.

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