JP3935438B2 - Cold water distribution system - Google Patents

Abstract

The invention relates to a device for delivering cold fresh water through a pipe (5) from a container (2) resting on the bottom of the sea to a receiving structure on land provided with water taps. The invention is characterized by the inner of the container (2) being divided into two compartments by a flexible membrane (3). One compartment (4) is connected by a pipe (5) to the structure (1) on land and contains fresh water. The other compartment (6) contains sea water and is by a further pipe (7) connected to a source (8) of water on land, which on the fresh water in the first compartment exerts a pressure that is decided by the elevation of the water tap that is positioned highest up in the structure.

Description

  The present invention relates to an apparatus for distributing cold fresh water through pipes from a submarine container to a terrestrial structure with a water faucet.

  A known device of this type consists of a container made of a plastic sheet in the form of a long bag filled with fresh water and is submerged in the seabed under its weight. The fresh water in the container is pumped up by a water pump located on land at the pressure required for the water to reach the highest water tap located in the structure. Here, the use of a bag-type container formed of a plastic sheet that collapses as soon as the water from the container is empty has been limited. Thereby, the rigid container needs to be kept floating in the sky, and the resulting buoyancy can continue to increase until the mooring is lost or completely eliminated. Therefore, the flexible container cannot be used on the sea bed full of stones.

  Another disadvantage is the risk of suction into the container due to a small amount of improper seawater mixed with fresh water leaking into the container or pipe due to suction on the suction side of the pump . This type of leak is difficult to confirm and it is difficult to determine the amount of remaining fresh water. In many areas, power shortages have occurred very frequently, so it is necessary to have a water pump operated by a ready-made generator or internal combustion engine to avoid a slightly longer and insufficient state of water transport There is.

  The object of the present invention is to create a device of the type mentioned in the introduction, which device can be operated completely independently of the power or standby unit and prevents the flow of seawater into fresh water. It is also possible to provide the device with means for displaying the amount of remaining fresh water.

  Thus, according to the invention, the device is characterized as in appended claim 1. By dividing the container into two compartments, one of them is filled with fresh water and the other is filled with other types of water, preferably sea water that is easily available, and the container is always filled with two types of water. Always satisfied. This means that a rigid container can be used even if the seabed is covered with stone. In the compartment filled with fresh water, the pressure required to supply fresh water to the highestly arranged water faucet and prevent the inflow of inappropriate seawater is generated. This pressure is effectively connected to a compressed air tank, or to a high level body of water, or by pumping seawater into a high level tank, suitably carried by a water tank truck or water tank ship. The water pump unit produces the desired pressure by connecting to the configured water column, which is generated by pressurizing another compartment, the water pump unit first filling the container and then refilling with fresh water Is used for.

  The present invention will be described in detail in the following description with reference to the accompanying drawings. The accompanying drawings show by way of example two embodiments of the device according to the invention. 1 is a side view of the apparatus, FIG. 2 is a longitudinal sectional view of the rigid container of FIG. 1, and FIGS. 3 and 4 are longitudinal sectional views of the flexible container in an empty state and a full state. FIG. 5 is a side view of the apparatus of FIG. 1 during the initial filling performed by the water tank ship.

  FIG. 1 shows a land structure 1 arranged to supply fresh water from a container 2 made of iron plates and moored on the seabed. The container is flexible and is divided into two compartments by a bag-shaped partition wall 3. The first compartment 4 is connected to the land structure 1 by a pipe, and the second compartment 6 is connected to a water tank 8 arranged on the land by a pipe 7. The pipe 5 has a branch pipe 9 that flows to the sea surface and extends to a buoy 10 that is moored at the sea floor. The branch pipe 9 includes a hose connection portion 12 near the stop valve 11 and the buoy.

  The pipe 7 has a branch pipe 13 that extends in a similar manner to a buoy 14 that flows to the sea surface and anchors to the sea floor. The branch pipe 13 includes a hose connection 16 near the stop valve 15 and the buoy.

  The compartment 4 in the container 2 is almost completely filled with fresh water via a branch pipe 9. There is only a small amount of seawater in the compartment 6, but there is a certain amount of seawater pumped through the branch pipe 13 in the aquarium 8, which roughly corresponds to the total amount of the container 2. The water level 17 is placed at a sufficient level above the topmost water faucet in the construct 1. When the fresh water in the compartment 4 is consumed in the structure 1, the partition 3 is arrange | positioned near the end wall which the container faces as shown by the dotted line in FIG. The water level in the aquarium 8 then falls to the bottom level, which can be displayed in the window 18 showing the condition when the construction runs out of fresh water. The bottom level is also located at a sufficient level above the water faucet of the construction 1.

  FIG. 3 discloses a container 20 made from a flexible plastic material and attached to a concrete plate 22. The partition chamber 23 on one side of the partition wall is in communication with the pipe 5 in FIG. 1, and the partition chamber 24 on the other side of the partition wall is in communication with the pipe in FIG. FIG. 4 discloses a container 20 that is approximately 50% filled with fresh water.

  FIG. 5 shows what is shown in FIG. 1 and discloses a device being refilled with fresh water from a water tank ship 30, which is connected to the hose connection 12 by a hose 31. Simultaneously with the filling of the compartment 4, the seawater in the compartment 6 is transferred to the aquarium 8, where the level has to be raised to the maximum level 32 indicated in the window 18. When compartment 4 is completely full, if not, it may be due to evaporation from the construct or a leak that has occurred on the sea water side or has occurred previously. In that case, the on-board seawater pump can be connected to the hose connection 16 by a hose 33 so that the tank is filled with the desired amount of seawater for maximum level of recovery.

  The aquarium 8 may be replaced with the use of a larger source of water located at the corresponding level. In particular, it may be appropriate to use a spring located at an appropriate level instead of the aquarium 8. In that case, the branch pipe 13 and the buoy 14 can be avoided. And different types of indications of the fresh water supply, for example sensing the position of the partition 3 or 21, are necessary.

  Of course, the invention is not limited to the embodiments shown and described herein, but can be varied in many ways within the scope of the invention as defined by the claims. The buoy may be replaced with a fluidized platform or similar method. It is also possible to distribute fresh water with a tank truck, in which case, of course, no buoy is required.

The side view of an apparatus. The longitudinal cross-sectional view of the rigid container of FIG. The longitudinal cross-sectional view of the flexible container of an empty state. The longitudinal cross-sectional view of the flexible container of a full tank state. FIG. 2 is a side view of the apparatus of FIG. 1 showing a state during an initial filling performed by a water tank ship.

Claims (5)

In the chilled water distribution system that distributes the chilled water through the pipe (5) from the container on the seabed to the onshore structure (1) with water faucet ,
The interior of the container is divided into two compartments by a flexible bulkhead (3; 21), and one compartment (4; 23) is connected to a land structure (1) by a first pipe (5). The capacity is changed so as to be equal to the capacity of the container (2; 20) at the maximum to accommodate fresh water, and the other compartment (6; 24) is empty in the first compartment (4; 23). At the time, the capacity is changed to be equal to the capacity of the container (2:20) at the maximum to accommodate water, preferably seawater, and connected by a second pipe (7) to an onshore water source (8) , A device characterized in that a pressure determined by the height of a water faucet arranged at the highest level of the structure (1) is applied to the fresh water in the first compartment (4; 23). A branch pipe (9) communicating with the first compartment (4; 23) is extended to a buoy (10) flowing on the sea surface, and the branch pipe near the buoy is a ship (30) equipped with a water pump. 2. The device according to claim 1, comprising a hose connection (12) that allows fresh water from the tank to be filled into the first compartment (4; 23 ) and a stop valve (11). Contain water at a surface level (17) where the onshore water source consists of an aquarium (8) and the water source is always located above the point with the faucet located at the top of the structure (1) The apparatus according to claim 1 or 2, characterized in that A second branch pipe (13) communicating with the second compartment (6; 24) is extended to a buoy (14) flowing on the sea surface, and the second branch pipe (13) is near the buoy . A hose connection (16) and a stop valve (15) are provided that allow water to be filled from a ship (30) equipped with a water pump to the desired level of the onshore water source (8). The apparatus of claim 3.   Device according to any one of the preceding claims, characterized in that the container (20) is made of a flexible plastic material and is anchored to a concrete plate (22).

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