JPS6050632B2 - Deep water intake device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a deep water intake device.

The present invention aims to provide water at an appropriate temperature at an appropriate depth below the surface of the sea or lake in order to obtain water at an appropriate temperature for use as a cold source necessary for various plants such as power plants on the ocean or on land.

In addition, the present invention focuses on the fact that there is a temperature difference between deep water and surface water (due to seasonal changes), and by taking water at the optimum temperature as a cold source for plants, it can be used for power generation plants and various other plants. It also aims to save energy and resources during plant operation. To explain the details of the embodiment with reference to the drawings, 1 is a water intake duct member whose lower end is fixed on a foundation 3 provided on the sea (lake) bottom 2 and whose upper end opening is long enough to be exposed above the water surface. , the duct member 1 is provided with water intakes 4a, 4b, 4c alternately on the left and right, and also in stages upward and downward.
, 4d, 4e, and 4f are provided.

The upper and lower inner surfaces of this duct member 1 have water intake ports 4a,
The inner cylinder 5, which allows the water intake ports 4b to be fully closed and one of them open, and the inner cylinder 6, which allows the water intake ports 4e and 4f to be fully closed and one of the ports to be open, are fitted so as to be movable up and down.

In the figure, 6' is a water inlet. Further, an outer cylinder 7 is fitted into the center of the outer surface of the duct member 1. The outer cylinder 7 can completely close the water intake ports 4c and 4d of the duct member 1 and open one of them.

In the figure, 7' is a water inlet. And these inner cylinders 5 and 6
One ends of wires 8, 9, and 10 are connected to the upper end of the outer cylinder 7, respectively, and the other ends of these wires 8, 9, and 10 are connected to a deck member provided at the upper end opening of the water intake duct member 1. a hoisting mechanism 12 such as a winch mounted on 11;
It is connected to 13 and 14.

In the figure, 15 is a water intake pipe connected to an onshore plant or an offshore barge body 16, and 17 is an anchor. The materials of the water intake duct member 1, inner tubes 5, 6, and outer tube 7 may be stainless steel, seawater-resistant steel plates, reinforced plastics, reinforced concrete, etc., and the surfaces that come into contact with seawater may be covered with algae, etc. A chemical layer or the like may be applied or treated to prevent the attachment and growth of shellfish, etc., and if necessary, insulation material may be attached to these duct members to prevent the intake water temperature from affecting the temperature of other water levels. You can also do it like this.

Furthermore, since it is desirable that the cylinders 5, 6 and the outer cylinder 7 be able to descend under their own weight, a weight or the like may be attached to a location where this will not cause any problem. Since the present invention is configured as described above, it has the following features. That is, the temperature of seawater and lake water varies depending on the region and depth, but also changes depending on the season, changes in ocean currents, etc.

For example, when it comes to seawater in general areas, deep water has a lower temperature than surface water in summer, but in winter, deep water has a higher temperature than surface water.

In response to such temperature changes, it is possible to individually raise and lower the inner cylinder or outer cylinder to open only the water intake corresponding to the desired water depth and completely close the others, allowing optimal hot water intake.
It has great effects, such as being able to constantly supply cold water at the optimal temperature required by plants on land and offshore, and saving energy resources during the operation of various plants.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway front view, FIG. 2 is a perspective view, FIG. 3 is an exploded perspective view, and FIG. 4 is a partially cutaway front view of the device in use.

Claims (1)

[Claims] 1. A water intake duct member that has water intake ports in multiple stages and has a length such that the upper end opening is exposed above the water surface is vertically fixed to the sea (lake) bottom, and along the inner and outer surfaces of the water intake duct member. A deep water intake device characterized in that an inner cylinder and an outer cylinder that can slide to open and close the water intake port are fitted into the water intake duct member so as to be able to move up and down separately.