JPH11336140A - Water storage device and its using method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively utilize the water stored in a water receiving tank by connecting a first water storage tank and a second water storage tank, providing an emergency cutoff means of a water flow on a first water output port, and providing a cutoff means of a water flow from the second water storage tank to the first water storage tank on a communication path. SOLUTION: An intermediate partition plate 3 is provided in a water receiving tank 2A serving as a water storage tank, a main water receiving tank 4 is installed as a first water storage tank, and an emergency water receiving tank 5 is installed as a second water storage tank. A passage guiding the water overflowing from the second water storage tank to the first water storage tank is installed in an inner space 56 above the intermediate partition plate 3. Feed water pipes 6 normally feeding water to the water receiving tanks 2A, 2B from the water service and lifting pipes 7 feeding water to facilities of a building from the water receiving tanks 2A, 2B are installed on the water receiving tanks 2A, 2B. Solenoid valves 8, 9 are arranged on the feed water pipes 6 and lifting pipes 7, and the feed water pipes 6 and lifting pipes 7 are cut off in an emergency to prevent the supply of water between the water receiving tanks 2A, 2B. Water is preferentially stored in the second water storage tank in an emergency and can be surely extracted and utilized.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid storage device for storing liquid, and more particularly to a water receiving tank for storing water supplied by a water truck when a disaster such as an earthquake occurs.

[0002]

2. Description of the Related Art A building such as a hospital, which accommodates a large number of people, is provided with a water receiving tank for temporarily storing water received from a water pipe or a well. Needed water was distributed. Normally, water is supplied from a water supply facility or well to the receiving tank.However, due to a disaster such as an earthquake, the water supply may be cut off or water may not be supplied from the well due to drought of groundwater due to abnormal weather. When this occurred, water was carried by the water truck to the receiving tank, and the water was supplied from the water truck to the receiving tank.

[0003]

However, a water receiving tank provided in a building in which a large number of people are housed has a large capacity, and it is not unusual that the tank has a capacity of several hundred tons. Even if the water tank with such a large capacity is supplied by a water tank with a water supply capacity of 2 to 3 tons, the water level in the water tank rises only slightly, and water cannot be supplied by the provided pump in one water supply. In addition, even when the water supply valve of the water receiving tank was twisted, water might flow out little by little.

[0004] Therefore, the present invention is to appropriately take out the water stored in the water receiving tank, when water of a much smaller volume than the total capacity of the water receiving tank is supplied by a water truck at the time of a disaster such as an earthquake. It is an object of the present invention to provide a liquid storage device and a method of using the liquid storage device that can effectively use the liquid storage device.

[0005]

In order to achieve the above object, a liquid storage device 1 according to the first aspect of the present invention comprises a first liquid storage tank 4 and a first liquid storage tank 4 as shown in FIGS. A second liquid reservoir 5 having a second liquid inlet 15 and a second liquid outlet 17, a communication passage 53 communicating the first liquid reservoir 4 and the second liquid reservoir 5, A first liquid inlet 10 attached to the first liquid tank 4 or the second liquid tank 5 and a first liquid inlet 10 attached to the first liquid tank 4 or the second liquid tank 5 Liquid outlet 1
The first liquid outlet 11 has an emergency shut-off means 9 for interrupting the flow of the liquid in an emergency; the communication passage 53 is provided between the second liquid storage tank 5 and the first liquid storage tank 4. It is characterized by having blocking means 54 and 55 for blocking the flow of the liquid to the liquid.

As the emergency shutoff means, an electromagnetic valve that closes the valve by turning on or off the power supply to the electromagnetic valve in an emergency, supplies the working air in an emergency, or closes the valve by cutting off the supply of the working air There are pneumatic valves and the like. The shutoff means may be an electromagnetic valve that closes the valve by turning on or off the power to the solenoid valve when necessary, or an air-operated valve that closes the valve by supplying working air or cutting off the supply of working air when necessary. It may be a check valve or the like that blocks the flow from the second storage tank arranged in parallel with any one of the valves to the first storage tank. Further, the check valve may be provided alone. The communication path may pass only inside the tank, or may pass outside the tank. When the communication passage passes through the inside of the tank, a check valve may be provided inside the tank.

The fact that the first liquid outlet has the emergency shutoff means means that the emergency shutoff means may be directly attached to the first liquid outlet or may be attached via a pipe or the like. . The second liquid inlet is used, for example, to take liquid into the second reservoir in an emergency, and the second liquid outlet is used to take liquid from the second reservoir in an emergency. can do.

[0008] With the above configuration, since the communication path includes the shut-off means, when the shut-off means is operated, the liquid stored in the first storage tank passes through the communication path from the first storage tank to the second storage tank. However, the liquid stored in the second liquid storage tank can be prevented from flowing from the second liquid storage tank to the first liquid storage tank through the communication path. Therefore, when the shut-off means is activated when necessary or in an emergency, the second storage tank stores the second storage tank.
If the liquid is supplied from the liquid inlet, the supplied liquid is stored only in the second liquid storage tank until the second liquid storage tank is full. Therefore, if the capacity of the second liquid storage tank and the mounting height of the second liquid outlet are determined in consideration of the liquid supply capacity of the liquid supply means such as a liquid supply vehicle, one time by the liquid supply means is determined. The liquid level of the second storage tank can be sufficiently increased beyond the second liquid outlet by supplying the liquid, and the liquid can be smoothly extracted from the second liquid outlet and used.

Further, since the first liquid outlet has an emergency shut-off means for interrupting the flow of the liquid in an emergency, the liquid in the water storage tank is taken out from the first liquid outlet in an emergency to reduce the amount of liquid stored. Reduction can be prevented.

The shutoff means provided in the communication passage for shutting off the flow of liquid from the second storage tank to the first storage tank may be an emergency shutoff means for emergency shutoff in an emergency. In this case, the emergency shut-off means does not normally operate, so that the second liquid storage tank and the first liquid storage tank can be connected to each other, and the first liquid outlet is connected to the first liquid storage tank side. Even if it is attached to the first liquid outlet, the liquid can be taken out from the first liquid outlet until the liquid in the first liquid storage tank and the liquid in the second liquid storage tank reach the minimum pumping water level.

The first liquid storage tank and the second liquid storage tank may have separate structures or may have an integral structure.

A liquid storage device according to a second aspect of the present invention is the liquid storage device according to the first aspect, wherein the first liquid intake port 1 is provided.
0 has an emergency shut-off means 8 for shutting off the flow of liquid in an emergency.

Therefore, when the state of the liquid is different from the normal state in an emergency, for example, when the liquid supplied due to breakage of the liquid supply line becomes turbid, this turbid liquid is prevented from being supplied to the liquid storage tank. be able to.

According to a third aspect of the present invention, in the liquid storage device according to the first or second aspect, the interior of the large storage tank is divided into two by a partition plate to provide two sections. Was used as the first liquid storage tank, and the other was used as the second liquid storage tank. In this case, the first liquid storage tank and the second liquid storage tank form an integrated large liquid storage tank.

According to a fourth aspect of the present invention, in the liquid storage device according to any one of the first to third aspects, the liquid overflowing from the second liquid storage tank is stored in the first liquid storage tank. It has a channel for guiding. When the capacity of the second liquid storage tank is smaller than the liquid supply capacity of the liquid supply means such as a liquid supply vehicle, or the liquid remains at the high liquid level in the second liquid storage tank before liquid supply by the liquid supply means. In this case, the surplus supply liquid can be guided from the second liquid storage tank to the first liquid storage tank and stored.

Here, the overflow of the liquid from the second storage tank means that the liquid overflows from the second storage tank beyond the partition plate.

According to a fifth aspect of the present invention, in the liquid storage device according to any one of the first to fourth aspects, the liquid storage device includes a space surrounded by the liquid storage tank and a fence. The wall of the liquid storage tank can be used as a fence, and the liquid storage device can be made compact. In addition, since a portion not surrounded by the fence can be provided in the liquid storage tank, for example, a liquid storage vehicle or the like as a liquid supply means can be easily laid sideways and stopped in this portion, and the liquid supply means can be stored in the water tank. The solution can be supplied close to the tank. Further, necessary equipment and the like can be stored in the space.

The method of using the liquid storage device according to the invention according to claim 6 includes a step of taking the liquid into the first liquid storage tank; and a step of communicating the first liquid storage tank with the second liquid storage tank; Removing the liquid from the first storage tank; urgently stopping the removal of the liquid from the first storage tank; and controlling the flow of the liquid from the second storage tank to the first storage tank. A step of shutting off; a step of taking in the liquid into the second liquid storage tank; a step of guiding the liquid overflowing to the first liquid storage tank when the second liquid storage tank is full; And removing the liquid from the second storage tank.

[0019]

FIG. 1 shows a first embodiment of a water receiving device 1 as a liquid storage device according to the present invention, which is attached to a building accommodating a large number of people. FIG. 1A is a plan view,
FIG. 1B is a front view. This water receiving device 1 is an independent two-tank type, and includes two rectangular large water receiving tanks 2A and 2B as a large liquid storage tank of the present invention. The two large water receiving tanks 2A and 2B are independent of each other, have the same size, and are installed at the same level at a predetermined distance in parallel. By using two large water receiving tanks 2A and 2B, even if one of them is damaged by a disaster or the like, the other can be used, and the danger can be dispersed.

The large receiving tanks 2A and 2B are installed on a concrete foundation 41. Further, since the two large water receiving tanks 2A and 2B are arranged at a predetermined distance, a space 42 is secured between the two large water receiving tanks 2A and 2B. Valves, equipment, fixtures, etc. can be arranged. Walls 44 of the large water receiving tanks 2A and 2B other than the wall 43 facing each other are boundaries with the outside of the liquid storage device. Fences 45 are installed at both ends of the space 42 surrounded by the two large water receiving tanks 2A and 2B, so that unnecessary persons cannot enter the inside of the apparatus without permission.
Access to the inside of the apparatus is performed through an entrance 47 provided with a door 46 (two-dot chain line) provided on one side of the fence 45.

The large water receiving tank 2A is provided with an intermediate partition plate 3 (shown by broken lines) as a partition plate of the present invention inside the large water receiving tank 2A. Is divided into a main water receiving tank 4 as a first liquid storage tank of the present invention and an emergency water receiving tank 5 as a second liquid storage tank of the present invention. The height of the intermediate partition plate 3 is about half the height of the space inside the large water receiving tank 2A. The inner space 56 above the intermediate partition plate 3 is the second space of the present invention.
And a flow path for guiding the liquid overflowing from the liquid storage tank to the first liquid storage tank.

The storage capacity of each of the two large water receiving tanks 2A and 2B is about 60 tons, and the intermediate partition plate 3 of the emergency water receiving tank 5 is provided.
The water storage capacity of the lower part of the top is about 6 tons. The large water receiving tank 2B is not provided with an intermediate partition plate, but may be provided with an intermediate partition plate, and furthermore, can be arranged as a mirror-like structure exactly like the large water receiving tank 2A.

The large water receiving tank 2A is provided with one manhole 48 on the partial upper surface of the main water receiving tank 4 and one manhole 49 on the partial upper surface of the emergency water receiving tank 5. On the other hand, in the large water receiving tank 2B, one manhole 50 is provided on the tank upper surface near the entrance 47.

The two large water receiving tanks 2A and 2B are provided with a water supply pipe 6 for supplying water from the water supply to the large water receiving tanks 2A and 2B at normal times.
And a pumping pipe 7 for supplying water from the large receiving tanks 2A and 2B to each facility of the building at normal times.
An electromagnetic valve 8 and an electromagnetic valve 9 as emergency shutoff means of the present invention are attached to each of the water supply pipes 6 and each of the pumping pipes 7, respectively. In an emergency, each solenoid valve 8 and each solenoid valve 9 operate to shut off each water supply pipe 6 and each pumping pipe 7, and no water is supplied to the large water receiving tanks 2A and 2B. Are not taken out.

This is because, in an emergency such as a disaster, the equipment connected to the water supply pipe 6 and the water pumping pipe 7 is damaged, and for example, turbid water is supplied to the large water receiving tanks 2A and 2B or the large water receiving tank 2
This is to prevent the water taken out from A and 2B from leaking before reaching the target equipment or the like, and not being sent wastefully and losing valuable water.

The water supply pipe 6 is connected to a water supply port 10 as a first liquid intake of the present invention, and the water supply pipe 7 is connected to a water intake 11 as a first liquid intake of the present invention. In the large water receiving tank 2A, the water supply port 10 is attached to the emergency water receiving tank 5 side, and the water intake port 11 is attached to the main water receiving tank 4 side.

Further, there is provided a communication passage 12 for communicating between the main water receiving tank 4 and the emergency water receiving tank 5. Therefore, as described above, since the water supply port 10 is attached to the emergency water receiving tank 5 side, the water supplied from the water supply pipe 6 is first stored in the emergency water receiving tank 5, but the liquid level rises and the intermediate partition plate 3 through the communication passage 12 until the height of the main tank 4 is exceeded.
Flowing to the side. An electromagnetic valve 13 as a shutoff means of the present invention is attached to the communication passage 12. The solenoid valve 13 is designed to be operated in an emergency in the same manner as the solenoid valves 8 and 9 described above. When the solenoid valve 13 is operated, it not only shuts off the flow of water from the emergency water receiving tank 5 to the main water receiving tank 4 but also shuts off water. Also, the flow from the main receiving tank 4 to the emergency receiving tank 5 is shut off.

For example, in the case of an emergency disaster such as a major earthquake, the water supply may often be cut off. In this case, a water supply vehicle 14 is used as a water supply means. In the present embodiment, the water supply vehicle 14 is arranged so that it can be laid right beside the emergency water receiving tank 5.

An emergency water supply port 15 as a second liquid intake of the present invention is attached to the emergency water supply tank 5, and a hose 16 of a water supply vehicle 14 is connected to the emergency water supply tank 5. Water is supplied to Since the water tank 14 of the present embodiment has a capacity of about 3 tons, when the emergency water tank 5 is empty,
One-time water supply supplies half the capacity of the emergency water receiving tank 5,
The portion below the intermediate partition plate 3 of the emergency water receiving tank 5 is filled with water by two water supplies. When the water supply is further continued after being full, the water overflows over the intermediate partition plate 3 and enters the main water receiving tank 4 from the emergency water receiving tank 5.

The emergency water receiving tank 5 is provided with an emergency water intake 17 as a second liquid outlet of the present invention.
In case of emergency, take water from here and use it. The emergency water intake 17 includes a manual valve, and is mounted at a predetermined height from the bottom of the emergency water tank 5. This height is determined so that when water is taken out, water can be taken in without trapping mud or the like settling at the bottom.

Emergency intakes 18 are also provided near the bottoms of the main water receiving tank 4 and the large water receiving tank 2B in the same manner as described above, and these emergency water intakes 18 are also provided with manual valves. In addition, the large water receiving tank 2B is provided with a substitute water intake port 19 on the upper surface, and can supply substitute water such as well water. If necessary, use the large water receiving tank 2A for water supply.
It is also possible to use B separately for middle water. A communication pipe may be provided between the large water receiving tank 2A and the large water receiving tank 2B. The communication pipe may be provided with a manual valve or a solenoid valve. With this configuration, even if a failure occurs in the water supply pipe system of one large water receiving tank at normal times and water is not supplied to the large water receiving tank, the large water receiving tank passes through the communication pipe from the other large water receiving tank. Since water flows into the water tank, water can be supplied from the large water receiving tank. In order to shut off the communication path in an emergency, the manual valve may be closed or the solenoid valve may be closed.

A space 42 between the two large receiving tanks 2A and 2B.
In addition, a storage box 20 for storing emergency equipment may be installed. The equipment stored in the storage box 20 may include a portable pump for transferring water in the main water tank 4 to the emergency water tank 5. An instrument panel that accommodates a detecting means (for example, a seismograph) for detecting the occurrence of an emergency disaster may be installed in the space 42. When an earthquake or the like is detected by this detecting means, the electromagnetic valves 8, 9, 13 may be operated.

Main water receiving tank 4, emergency water receiving tank 5, large water receiving tank 2
A level gauge may be attached so that the level of the water level B can be detected from the outside. In addition, emergency intake 17,
The package filter may be stored in the storage box 20 as a fixture so that the package filter can be attached to the storage box 18.

In the present embodiment, the number of the intermediate partition plates 3 is one and the number of the emergency water receiving tanks 5 of the large water receiving tank 2A is one. Two or more plates may be arranged inside the large water receiving tank. Also, the emergency water tank 5 is provided only in the large water tank 2A,
It may be provided also in the large water receiving tank 2B.

As shown in FIG. 4, as another embodiment, the communication passage 53 may have a configuration in which a solenoid valve 54 and a check valve 55 are arranged in parallel. The presence of the check valve 55 allows water to flow through the check valve 55 to the main receiving tank 4.
From the emergency water receiving tank 5, but does not flow from the emergency water receiving tank 5 to the main water receiving tank 4. If the electromagnetic valve 54 is normally opened and the electromagnetic valve 54 is closed in an emergency, the main water tank 4 and the emergency water tank 5 are normally communicated with each other at normal times, and water can flow between the former two. At times, water can flow only in the direction from the main receiving tank 4 to the emergency receiving tank 5.

Therefore, when an emergency occurs while a large amount of liquid is stored in the main water receiving tank 4, if water is taken out from the emergency water receiving tank 5 and the water level in the emergency water receiving tank 5 drops, Then, water flows from the main receiving tank 4 to the emergency receiving tank 5. On the other hand, when an emergency occurs when only a small amount of water is stored in the main receiving tank 4, when water is supplied to the emergency receiving tank 5, the water level in the emergency receiving tank 5 becomes the primary receiving level. Even if the water level becomes higher than the water level of the water tank 4, water does not flow from the emergency water receiving tank 5 to the main water receiving tank 4 until reaching the top of the intermediate partition plate 3.

In FIG. 4, it is possible to provide only a check valve without providing an electromagnetic valve. However, in this case, if the water is continuously taken out without supplying the water in the main water receiving tank 4 in a normal state, even if the water level in the main water receiving tank is lower than the water level in the emergency water receiving tank 5, the emergency water receiving tank 4 may be used. 5 to main receiving tank 4
No water flows in If only check valve is used,
The communication passage may be provided not inside the tank but inside the tank, and a check valve may be installed inside the tank.

FIG. 2 schematically shows a water receiving device 1C according to a second embodiment of the present invention. Water receiving device 1C is large water receiving tank 2C
It is composed of one. The large water receiving tank 2C has a structure in which a second rectangular parallelepiped having an upper surface at the same height, the same width, and a lower bottom is attached to one side surface of the first rectangular parallelepiped.
The large water receiving tank 2C is placed on the foundation 41 so that the bottom surface of the second rectangular parallelepiped portion is at a level higher than the ground. First
The upper half where the rectangular parallelepiped and the second rectangular parallelepiped are in surface contact has no partition between the former two, but the lower half has an intermediate partition 3
C is provided to divide the large water tank 2C into a main water tank 4C and an emergency water tank 5C. Here, the boundary between the main water receiving tank 4C and the emergency water receiving tank 5C is an intermediate partition plate 3C and a virtual extension surface of the intermediate partition plate 3C above.

Structure of communication passage and solenoid valve (not shown in FIG. 2)
Can be the same as in FIG. 1 or FIG. The main receiving tank 4C is located at a predetermined height near the bottom of the main receiving tank 4C.
And a communication passage for communicating the emergency water receiving tank 5C with the emergency water receiving tank 5C. The communication path is provided outside the tank, and a solenoid valve for shutting off communication between the main water receiving tank 4C and the emergency water receiving tank 5C is provided in the communication path. Can be installed. The height of the communication passage from the bottom of the main water receiving tank 4C may be determined so that mud or the like settled in the main water receiving tank 4C does not flow into the emergency water receiving tank 5C through the communication passage.

The water supply port 10C for supplying water from the tap to the large water receiving tank 2C at normal time is installed on the upper surface of the emergency water receiving tank 5C so that the supplied water is first stored in the emergency water receiving tank 5C. After the lower part of the intermediate partition plate 3C of the emergency water receiving tank 5C becomes full, water overflows from the emergency water receiving tank 5C over the intermediate partition plate 3C, and water is stored in the main water receiving tank 4C. Can be Intake 11C used at normal time is
It is attached to the side surface of the main water receiving tank 4C at a predetermined height from the bottom surface. The emergency water supply port 15C is provided on the upper surface of the emergency water receiving tank 5C. The emergency water intake 17C is attached to a side surface of the emergency water tank 5C at a predetermined height from the bottom surface.

A water supply pipe 6C, to which an electromagnetic valve 8C that operates in an emergency and shuts off water supply, is connected to the water inlet 10C, and an electromagnetic valve that operates in an emergency and shuts off water intake is connected to the water intake 11C. A pumping pipe 7C to which 9C is attached is connected.

A vent pipe 52 protruding vertically upward is provided on the upper surface of the emergency water receiving tank 5C, and its distal end has an inverted U-shape and has a filter (not shown). For this reason, the pressure in the internal space of the large water receiving tank 2C can be equalized with the atmospheric pressure.

In the water receiving apparatus 2C of the present embodiment, the water stored in the emergency water receiving tank 5C in an emergency is used for the emergency intake port 17C.
When the water is taken out from the tank C and a certain amount of water remains in the main water receiving tank 4C, after the water level in the emergency water receiving tank 5C falls below the water level in the main water receiving tank 4C, the electromagnetic passage blocking the communication passage is stopped. When the valve is opened, the water in the main water receiving tank 4C flows into the emergency water receiving tank 5C, so that the liquid in the main water receiving tank 4C almost runs out, that is, the water stored in the main water receiving tank 4C is almost completely used. can do.

Two large water receiving tanks 2C of the present embodiment are provided in the same manner as the large water receiving tank of the first embodiment, are separated by a predetermined distance, are parallel and parallel, have the same height, and are mirror symmetric. May be arranged.

FIG. 3 schematically shows a water receiving device 1D according to a third embodiment of the present invention. Water receiving device 1D of the present embodiment
Has one main water receiving tank 4D and one emergency water receiving tank 5D separately. Bottom of main receiving tank 4D and emergency receiving tank 5
The bottom surface of D is at the same height, and the upper surface of the main water receiving tank 4D is at a higher level than the upper surface of the emergency water receiving tank 5D. Main receiving tank 4
The storage capacity of D is larger than the storage capacity of the emergency receiving tank 5D. The height of the upper surface of the main water receiving tank 4D may be the same as the height of the upper surface of the emergency water receiving tank 5D. In this case, even if the emergency water supply port 15D of the emergency water receiving tank is opened when the main water receiving tank 5D is full, the water does not overflow.

The water receiving device 1D is provided with a communication path 12D for communicating the main water receiving tank 4D and the emergency water receiving tank 5D, and the communication path 12D is provided with an emergency shutoff solenoid valve 13D. Instead of the electromagnetic valve 13D, a check valve for preventing the flow from the emergency water receiving tank 5D to the main water receiving tank 4D may be attached. A water supply port 10D is mounted on the upper surface of the main water receiving tank 4D, and a water intake port 11D is mounted near the bottom of the side wall. An emergency water supply port 15D is mounted on the upper surface of the emergency water receiving tank 5D, and an emergency water intake 17D is mounted near the bottom of the side wall. A water supply pipe 6D having an emergency shutoff electromagnetic valve 8D is provided at the water inlet 10D, and an emergency shutoff electromagnetic valve 9 is provided at the water intake 11D.
D is connected to a pumping pipe 7D.

In the vicinity of the upper surface of the side wall of the emergency water receiving tank 5D,
An overflow pipe 51 connected to the main water receiving tank 4D is connected. The size of the overflow pipe 51 is sufficiently large so that when the water supplied to the emergency water receiving tank 5D exceeds a certain level, the main water receiving tank 4D smoothly overflows.

The upper surface of the emergency water receiving tank 5D is provided with a vent pipe 52D protruding vertically upward, the highest part of which is higher than the upper surface of the main water tank 4D, and the tip of which is inverted U-shaped. And a filter (not shown).
For this reason, when water at a level exceeding the overflow pipe 51 exists in the emergency water receiving tank 5D, the emergency water intake 17
Water can be taken out smoothly from D.

The main water receiving tank 4D and the emergency water receiving tank 5D of the present embodiment are provided two each in the same manner as the large water receiving tank of the first embodiment, are separated by a predetermined distance, and are arranged in parallel and parallel. They may be arranged at a height and mirror-symmetrically.

In the above embodiment, the height of the intermediate partition plate 3 is half the height of the internal space of the large water receiving tank 2A.
It only has to be lower than the height of the internal space. In short, the middle partition plate 3
It suffices that water overflows from above and smoothly flows from the emergency water receiving tank 5 to the main water receiving tank 4. Therefore, if a weir-shaped notch is provided in a part of the uppermost part of the intermediate partition plate 3,
The height of the intermediate partition plate can be the same as the height of the internal space, and water can overflow from this weir-shaped notch. Although the water intake 11 is provided in the main water receiving tank 4, it may be provided in the emergency water receiving tank 5. In this way, water can be taken out of the emergency water receiving tank 5 at normal times.

Although the liquid to be handled has been described as water, it may be another liquid such as kerosene.

[0052]

As described above, according to the present invention, the first liquid storage tank and the second liquid storage tank are provided, and the first liquid storage tank and the second liquid storage tank are provided.
A communication passage communicating with the liquid storage tank is provided, and the communication path has a blocking means for blocking the flow of the liquid from the second liquid storage tank to the first liquid storage tank. Therefore, it is possible to store the total volume of the liquid in both the first and second liquid storage tanks in the normal state. Normally, it is possible to prevent the communication passage from being interrupted. At this time, at least the total volume of liquid stored in the first and second liquid storage tanks can be taken out and used. On the other hand, in an emergency, the flow of the liquid from the second storage tank to the first storage tank in the communication passage is interrupted, and if the liquid is first supplied to the second storage tank, the supplied liquid is first supplied to the second storage tank. Is stored only in the liquid storage tank, and the liquid level of the liquid is reliably raised. When a flow path for guiding the liquid overflowing from the second storage tank to the first storage tank is provided,
After the liquid storage tank is filled up to the uppermost level of the partition plate, water can be stored in the first liquid storage tank.

Therefore, it is possible to use both the first and second liquid storage tanks in a normal state, and store the liquid preferentially in the second liquid storage tank in an emergency. Therefore, in an emergency, the liquid supplied to the second storage tank can be reliably stored, and the stored liquid can be reliably taken out and used.
In addition, since the first liquid outlet has an emergency shutoff means for urgently shutting off the flow of the liquid in an emergency, it is possible to prevent the liquid from being taken out of the storage tank in an emergency and to prevent the liquid from being unnecessarily taken out. .

If the first liquid inlet has an emergency shut-off means for urgently shutting off the flow of the liquid in an emergency, it is possible to cut off the liquid from the liquid storage tank in an emergency, and Unnecessary intake of liquid can be prevented, for example, when the water becomes cloudy.

[Brief description of the drawings]

FIG. 1 is a schematic plan view and a schematic front view showing a first embodiment of a water receiving device of the present invention.

FIG. 2 is a schematic front view showing a water receiving device according to a second embodiment of the present invention.

FIG. 3 is a schematic front view showing a water receiving device according to a third embodiment of the present invention.

FIG. 4 is a schematic plan view illustrating a configuration of a communication path according to another embodiment.

[Explanation of symbols]

 1, 1C, 1D water receiving device 2A, 2B, 2C, 2D large water receiving tank 3, 3C intermediate partition plate 4, 4C, 4D main water receiving tank 5, 5C, 5D emergency water receiving tank 6, 6C, 6D water supply pipe 7, 7C, 7D pumping pipe 8, 8C, 8D solenoid valve 9, 9C, 9D solenoid valve 10, 10C, 10D water supply port 11, 11C, 11D intake port 12, 12D communication passage 13, 13D solenoid valve 14 water supply vehicle 15, 15C, 15D Emergency water inlet 16 Hose 17, 17C, 17D Emergency water intake 18 Emergency water intake 19 Alternative water intake 20 Storage box 41 Foundation 42 Space 43 Wall 44 Wall 45 Fence 46 Door 47 Entrance 48, 49, 50 Manhole 51 Overflow pipe 52C, 52D Ventilation pipe 53 Communication path 54 Solenoid valve 55 Check valve 56 Internal space

Continued on the front page (72) Inventor Naoko Shima 2-6-16 Yaesu, Chuo-ku, Tokyo N.W.K.

Claims (6)

[Claims] A first liquid storage tank, a second liquid inlet, and a second liquid inlet;
A second liquid storage tank having a liquid take-out port, a communication path communicating the first liquid storage tank and the second liquid storage tank, and the first liquid storage tank or the second liquid storage tank. The first installed in the reservoir
And a first liquid outlet attached to the first liquid storage tank or the second liquid storage tank; wherein the first liquid discharge port is capable of controlling the flow of liquid in an emergency. An emergency shut-off means for shutting off; the communication path having shut-off means for shutting off a flow of liquid from the second liquid storage tank to the first liquid storage tank; . 2. The liquid storage device according to claim 1, wherein the first liquid inlet has an emergency shutoff means for shutting off the flow of the liquid in an emergency. 3. The interior of the large liquid storage tank is divided into two by a partition plate to provide two sections, one of the sections being the first liquid storage tank and the other being the second liquid storage tank. The liquid storage device according to claim 1 or 2, wherein: 4. The method according to claim 1, wherein the liquid overflowing from said second storage tank is discharged to said first storage tank.
The liquid storage device according to any one of claims 1 to 3, further comprising a flow path leading to the liquid storage tank. 5. The liquid storage device according to claim 1, further comprising a space surrounded by the liquid storage tank and a fence. 6. A step of taking the liquid into the first liquid storage tank; a step of communicating the first liquid storage tank with the second liquid storage tank; a step of taking out the liquid from the first liquid storage tank; A step of urgently stopping the removal of liquid from the first reservoir;
Shutting off the flow of the liquid to the liquid storage tank of the above; a step of taking the liquid into the second liquid storage tank; and discharging the liquid overflowing when the second liquid storage tank is full to the first liquid storage tank. Leading to the reservoir;
A method of using the liquid storage device including a step of taking out the liquid from the second liquid storage tank.