JPH03181398A - Flow station fitted with long-sized draft - Google Patents

Abstract

PURPOSE:To rightly keep the attitude of fountain by elevatably holding a water flow generating machine by a float moored in the land part and connecting a long-sized draft to the suction side of the water flow generating machine and regulating the hanging length of a hanging rope which joins the float to the long-sized draft and thereby regulating the depth of suction. CONSTITUTION:The mooring fittings 5, 5 are arranged in the symmetrical positions of an annular float 4. These mooring fittings are moored to the mooring piles 3, 3 via the mooring ropes 6, 6. A water flow generating machine 7 is elevatably held by the float 4 so as to correspond to the change in the water level. A flange 13 for fitting a contractible and expansive long-sized draft 8 is connected to the suction side of the machine 7. In this long-sized draft 8, depth D of suction can be regulated by regulating the hanging length S of the hanging ropes 9, 9. When storaged water in a water reservoir B is fluctuated to a low water level L from the high water level H, the lower-part cylindrical body 12 is grounded on the bottom part of the water reservoir. Thereafter the middle-part cylindrical body 11 and the upper-part cylindrical body 10 are successively lowered and shortened. Therefore the float 4 connected to the cylindrical body 10 and the machine 7 are not tilted and floated on the water surface and the normal attitude of fountain is held.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a flow station with a long draft used for aerating and purifying stored water.

(Prior Art) In dams and the like that store large amounts of water, flow stations are floated on the water surface to purify the stored water.

In this flow station, the float that surrounds and holds the water flow generation machine is moored to land via a mooring rope, while the water intake pipe of the water flow generation machine is installed with the water intake port maintained at a slight distance from the pond bottom. It is designed so that it can be raised and lowered as the water level fluctuates.

The water stored at the bottom of the pond is sucked into the water flow generation machine and is blown up into the atmosphere, where it is aerated and purified, adding to the beautiful scenery.

(Problems to be Solved by the Invention) Conventional flow stations rely on the extra length of the mooring rope mooring the float to land, so the height of the lift is about 2m to 3m. It often stops.

Therefore, in dams etc. where water level fluctuations are extremely large,
At low water levels, the flow station tilts and the fountain position of the water flow generation machine collapses, and at high water levels, the water intake pipe's intake port rises significantly from the pond bottom, making it impossible to aerate the ice blocks at the bottom of the pond. there were.

In view of these conventional circumstances, the present invention has been devised to provide a long fountain that maintains the correct fountain position of the water flow generation machine even when the water level changes significantly, and that also allows the ice blocks at the bottom of the pond to be evenly aerated. The purpose is to provide a flow station with a draft.

(Means for Solving the Problems) In the long draft flow station of the present invention, a float is moored to the land area via a mooring rope, and on the suction side of a water flow generating machine held movably up and down by the float, The upper end of a long draft configured to be extendable and retractable is connected, and the suction depth of this long draft can be adjusted by adjusting the hanging length of a hanging rope that connects the lower end of the long draft and the float. It is something that

(Function) The long draft installed on the suction side of the water flow generating machine is
By adjusting the hanging length and the binding position of the hanging rope, the suction depth can be set according to the depth of the reservoir, etc., and the ice at the bottom of the pond can be evenly aerated, and the water level of the reservoir can change. Due to the expansion and contraction of the long draft, the water flow generating machine can move up and down while maintaining its normal fountain posture.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

Embodiment 1 This embodiment is shown in FIGS. 1 and 2, in which a long draft is formed into a multi-stage telescopic tube shape.

In the flow station 1 with a long draft of this example, mooring piles (only one side is shown) 3.3 are driven into a land area 2 surrounding a reservoir B such as a dam, and an annular float 4 is attached to the mooring piles 3, 3. Mooring fittings 5.5 arranged at symmetrical positions are moored via mooring ropes 6.6.On the suction side of the water flow generating machine 7, which is held movable up and down by a float 4 so as to follow changes in the water level, A mounting flange 13 (described later) is connected to a long draft 8 which is extendable and retractable, and this long draft 8 is connected to a rope binding fitting 20, 20 (described later) and a mooring fitting for the float 4 at the lower end of the long draft 8. 5,
The suction depth can be adjusted by adjusting the hanging length S of the hanging rope 9.9 for connecting and tying the two.

That is, the float 4 is provided with a float main body 4b on the outer periphery of a frame 4a, and the water flow generating machine 7 is hooked to the rotation prevention rods 4c, 4c, which are set upright opposite to the inner side of the float main body 4b. 7a, 7a are engaged.

The water flow generating machine 7 is a known two-stage fountain device, in which water sucked in by a submersible pump 7b is ejected radially from a nozzle N so as to cover the float 4.
It is configured so that it falls onto the surrounding water surface, scattering water droplets, and performs the aeration process.

The long draft 8 includes an upper cylinder 10 and an intermediate cylinder 11.
The lower cylinder body 12 is provided in a multi-stage telescopic structure in which the lower cylinder body 12 is fitted in sequence. A mounting flange 13 and a flange 14 are attached to both ends of the upper cylindrical body 10, and a flange 14 is attached to both ends of the intermediate cylindrical body 11. A lower hook flange 17 and a lower support flange 18 are provided at both ends of the body 12, and when the long draft 8 is shortened, an intermediate cylinder 1 and an upper cylinder 10 are installed inside the lower cylinder 12. On the other hand, when the elongated draft 8 is extended, the upper support of the upper cylinder 10 is placed on the flange 14, the intermediate part of the intermediate cylinder 11 is placed on the flange 15, and the intermediate part support is placed on the flange 14. The flanges 17 are supported by the lower hooks of the lower cylinder 12 on the flanges 16, respectively, so that the maximum extension length is regulated. Reference numeral 19 denotes a notch portion provided in the cylindrical portion of the lower cylindrical body 12. 20.20 is a metal fitting for rope binding.

Although only one intermediate cylindrical body 11 is shown in this example, if the depth of the reservoir B is deeper, the number of intermediate cylindrical bodies 11 is increased to a plurality of stages. Reference numeral 21 is connected to a land-based power distribution board or the like by a cable of the water flow generating machine 7.

Next, the operation of the first embodiment will be explained.

In FIG. 1, the hanging rope 9.9 is tied in advance to the mooring fitting 5.5 of the float 4 and the rope binding fitting 20° 20 of the long draft 8 to set the hanging length S. One end of each mooring rope 6.6 is tied to the mooring fitting 5.5. Then, after floating the long draft flow station 1 in the reservoir B and tying the other end of the mooring rope 6.6 to the mooring piles 3, 3 on the land section 2, the water flow generating machine 7
By starting the water mass W at the bottom of the reservoir B is sucked from the lower end of the elongated draft 8 and ejected from the nozzle N to perform aeration treatment.

If the stored water in the reservoir B fluctuates from a high water level H to a low water level, the lower cylinder 12 of the long draft 8 lands on the bottom of the pond, and then the intermediate cylinder 11 and the upper cylinder 10 descend in sequence. and shorten it. Therefore, the float 4 and the water flow generating machine 7 connected to the upper cylinder 10 float on the water surface without tilting, so that a normal fountain posture is maintained.

On the other hand, if reservoir B rises further from high water level H,
By retying the hanging ropes 9.9 to extend the hanging length, the pond bottom water body W can be aerated.

Example 2 This example is shown in FIG. 3, in which a long draft is formed into a bellows shape.

The long draft flow station 51 of this example is a reservoir B.
Mooring metal fittings 55.55 are arranged at symmetrical positions of the annular float 54 on the mooring piles 53, 53 of the land area 52 surrounding the
is moored via mooring ropes 56.56. Water flow generating machine 57 held movably up and down by a float 54
An upper mounting flange 60 (described later) of the long draft 58 is connected to the suction side of the long draft 58, and a rope binding fitting 63°6 (described later) at the lower end of the long draft 58 is connected to the suction side of the long draft 58.
The suction depth can be adjusted by adjusting the hanging length S of a hanging rope 59.59 for connecting and binding the mooring metal fittings 55, 55 of the float 54.

Further, the float 54 and the water flow generating machine 57 are configured to have the same functions as in the first embodiment.

The elongated draft 58 is formed by sequentially connecting an upper mounting flange 60, a bellows body 61, and a lower cylindrical body 62, and the lower cylindrical body 62 is provided with rope binding fittings 63, 63. 64 is a notch.

Reference numeral 65 denotes a cable of the water flow generating machine 57, which is connected to a power distribution board or the like on the land section 52.

The action of this example is that the bellows body 61 of the long draft 58 expands and contracts as the water level of the reservoir B increases and decreases, and the float 54
This embodiment is the same as the first embodiment, except that the water flow generation machine 57 maintains the fountain attitude in a normal manner and the pond bottom water mass W can be aerated.

(Effects of the Invention) In the flow station with a long draft of the present invention, a float is moored to the land area via a mooring rope, and the suction side of the water flow generation machine, which is held moorable up and down by the float, is extendable and retractable. The upper ends of the constructed long draft are connected, and the suction depth of the long draft can be adjusted by adjusting the hanging length of the hanging rope that connects the lower end of the long draft and the float. Because of this, it not only allows the water flow generating machine to maintain the correct fountain position even if the water level in the reservoir changes significantly, but also has the excellent advantage of being able to evenly aerate the ice blocks at the bottom of the pond.

[Brief explanation of drawings]

The drawings show each embodiment of the present invention, and FIG. 1 is a front view of a flow station with a long draft in Embodiment 1, FIG. 2 is a plan view of the same, and FIG. 3 is a long draft in Embodiment 2. FIG. 2 is a front view of the flow station. 1.5 2.5 4.5 6.5 7.5 8.5 9.5 1... Flow station with long draft 2...
Land section 4...Float 6...Mooring rope 7...Water flow generating machine 8...Long draft 9...Suspension rope S...Suspension length D...Suction depth

Claims (1)

[Claims] 1) A float is moored on land via a mooring rope,
The upper end of the elongated draft, which is configured to be extendable and retractable, is connected to the suction side of the water flow generating machine that is held movably up and down by this float, and this elongated draft connects the lower end of the elongated draft and the float. A flow station with a long draft, characterized in that the suction depth can be adjusted by adjusting the hanging length of the hanging rope.