JPH0567399U - Deep fountain - Google Patents

Abstract

(57) [Summary] [Purpose] Even if the water level in a reservoir changes drastically, the operating posture of the fountain device should be kept normal and the aeration treatment of the reservoir water at the bottom of the reservoir should be ensured. [Structure] In a deep-layer fountain device 1 in which a long draft 6 is connected to a suction side S of a water flow generating machine 3 held by a base float 2 so as to be able to move up and down, the long draft 6 is connected to the suction side S. The fixed upper cylinder 4 and this upper cylinder 4
And at least one lower tubular body 5 fitted so as to be able to move up and down with respect to the lower tubular body 5 for adjusting buoyancy to keep the weight of the base float 2 constant. The feature is that the float 7 is provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a deep-layer fountain device used for aeration purification of deeply stored water such as dams and golf course reservoirs and public ponds.

[0002]

[Prior Art]

 In order to efficiently perform aeration purification of stored water in deep reservoirs, a fountain device is generally used to strongly eject the stored water at the bottom of the reservoir above the water surface.

This fountain device is conventionally held so that it can be raised and lowered by a float floated on the water surface so that it can respond to changes in the water level, and the water intake pipe of the fountain device faces the bottom of the pond as much as possible. One long pipe or multiple short pipes connected to each other is connected to the suction side of the pump with an appropriate distance from the bottom of the pond. Was pumped up.

[0004]

[Problems to be solved by the device]

 However, in the fountain device using the above-mentioned water absorption pipe, when the amount of stored water decreases and the water level drops significantly in the summer etc., the water absorption pipe catches on the bottom of the pond and the float rises above the water surface. There was a problem that it fell down.

Even so, if the water intake pipe is shortened in accordance with the drop in water level in the summer, it becomes impossible to pump up the reservoir water at the bottom of the pond when the water depth during flooding becomes deeper than expected.

[0006] Therefore, the stored water at the bottom of the pond is in an oxygen-deficient state, and the quality of the water rapidly deteriorates.

In view of such conventional circumstances, the present invention maintains the operating posture of the fountain device normally even if the water level of the reservoir or the like changes significantly, and ensures the aeration treatment of the reservoir water at the bottom of the pond. It is an object of the present invention to provide a deep-layer fountain device configured to be made.

[0008]

[Means for Solving the Problems]

 The deep fountain device of the present invention is a deep fountain device in which a long draft is connected to the suction side of a water flow generating machine that is held up and down by a base float, wherein the long draft is fixed to the suction side. The upper cylinder body and at least one lower cylinder body that is fitted to the upper cylinder body so as to be able to move up and down are configured to be expandable and contractible. The lower cylinder body is provided with the weight of the base float. It is characterized by a buoyancy adjustment float to keep it constant.

[0009]

[Action]

 When the water level of the reservoir water fluctuates between high and low water levels, the base float moves up and down to follow the water level fluctuation, and the expansion and contraction of the upper and lower cylinders of the long draft. With, the correct fountain posture of the deep fountain is maintained.

Further, since the underwater weight of the lower structure including the lower cylindrical body does not affect the base float, the upper structure including the base float can move up and down extremely smoothly.

[0011]

【Example】

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

Embodiment 1 This Embodiment 1 is shown in FIG. 1, in which a long draft which is a water absorption pipe is constructed in a two-stage form.

The deep fountain device 1 shown in FIG. 1 is applied to a reservoir having a deep water depth and a little large water level fluctuation. The base float 2, the water flow generating machine 3, the upper cylinder 4 and the lower cylinder are used. The long draft 6 composed of the body 5, the buoyancy adjusting float 7, the supporting legs 8 and the depth adjusting rope 9 are mainly constituted.

That is, the deep-water fountain device 1 is held by a base float 2 floating on a water surface so that the water flow generating machine 3 can move up and down so as to follow the water level fluctuation of a reservoir (not shown). The long draft 5 is connected to the suction side S of 3.

The base float 2 is moored to the land portion via a plurality of mooring ropes (not shown), and the float body 10 formed in a donut shape in plan view has an outer peripheral portion of the upper float frame 11. Four upper rope holders 12 and 13 are provided on the outer peripheral portion of the upper float frame 11 and the outer peripheral portion of the lower end portion of the float body 10 while being attached to the lower surface in a suspended manner.

In the water flow generation machine 3, a submersible pump 15 having an impeller 14 is supported by a pump frame 16, and a fountain nozzle 17 arranged concentrically with the impeller 14 is provided at an upper end of the pump frame 16. By connecting the fountain nozzle 17 together with the submersible pump 15 to the central portion of the upper float frame 11, the water flow generating machine 3 is held by the base float 2 so as to be vertically movable.

The long draft 6 is fitted to the upper cylinder 4 fixed to the base float 2 so as to surround the suction side S of the water flow generating machine 3 and to be able to move up and down with respect to the upper cylinder 4. It is configured such that it can be expanded and contracted by the one lower cylinder body 5 that is formed.

The lower tubular body 5 is provided with the buoyancy adjusting float 7, and the lower end of the buoyancy adjusting float 7 has four lower ends corresponding to the upper rope holders 12 and 13 on the outer periphery of the upper end. A rope holder 18 is provided.

The upper cylindrical body 4 is fixed to the lower surface of the upper float frame 11 by attaching a mounting flange 19 provided on the upper end portion thereof with bolts or the like, while an upper side receiving flange 20 is provided on the lower end portion thereof. Has been. Further, a strengthening ring 21 is provided at the lower open end of the upper tubular body 4.

The lower tubular body 5 has a mounting flange 22 provided at an upper end thereof, which surrounds the outer periphery of the upper tubular body 4 and faces the upper side of the upper receiving flange 20. On the other hand, the supporting leg 8 is connected to the connecting flange 24 provided at the lower end while being attached in a suspended manner.

The buoyancy adjusting float 7 is provided to prevent the underwater weight of the lower cylindrical body 5 immersed in the stored water from being applied to the base float 2, and is formed in a donut shape in a plan view and has a plug shape. Alternatively, a water injection nozzle (not shown) equipped with a valve or the like is attached to the lower surface of the lower float frame 23.

Water is injected into the buoyancy adjusting float 7 from this water injection nozzle, and the underwater weight of the lower structure in which the lower cylindrical body 5, the buoyancy adjusting float 7 and the supporting leg 8 are connected to each other causes the deep-layer fountain device 1 to operate. By adjusting the buoyancy so as to approach the specific gravity of the installed stored water, the weight applied to the base float 2 is the total weight of the upper structure in which the upper cylinder body 4, the base float 2 and the water flow generating machine 3 are combined. It remains constant without a significant increase in weight.

The stored water in the deep part of the reservoir sucked from the lower end of the long draft 6 by the impeller 14 is radially ejected from the fountain nozzle 17 so as to cover the upper part of the base float 2, and splashes the splashed water. It is configured to drop on the surrounding water surface while in contact with the atmosphere, and progress the aeration process.

The depth adjustment ropes 9 are inserted into the upper rope holders 12 and 13 and the lower rope holder 19, respectively, and each depth adjustment rope 9 has an end on the underwater side. While the end portion on the water side is formed as a retainer 26 in which this end portion is entangled.

Further, by adjusting the length of the depth adjusting rope 9 from the retainer 25 to the retainer 26, the suction depth at which the support leg 8 is seated on the bottom of the pond can be adjusted.

Although the above-mentioned deep-layer fountain device 1 is intended for the case where the long draft 6 is immersed in general-purpose water, it can be placed in a liquid other than water and used if necessary.

Therefore, in this case, the adjustment of the in-liquid weight of the lower structural body including the lower cylindrical body 5 is made on the basis of the specific gravity of the liquid.

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

In FIG. 1, in order to set the suction depth at a high water level H in a reservoir or the like in advance, the length of each depth adjusting rope 9 is adjusted so that the support leg 8 is at the high water level H even at the bottom of the pond. It is adjusted so that you can sit down.

Further, since the lower structural body in which the lower cylindrical body 5, the buoyancy adjusting float 7, the supporting leg 8 and the like are connected is adjusted to have a weight close to the specific gravity of the stored water, the lower structural body in the stored water is The lifting and lowering operation of the body is smoothly performed without applying a load to the base float 2.

Then, by starting the water flow generating machine 3, the stored water in the deep layer is sucked from the lower end of the long draft 6, and then is sprayed from the fountain nozzle 17 to proceed with the aeration process.

When the stored water descends from the high water level H toward the low water level L, the deep fountain apparatus 1 has the supporting leg 8 seated on the bottom of the pond.

When the water level further lowers, the upper structure that connects the base float 2, the water flow generating machine 3 and the upper cylinder 4 descends as the depth adjusting ropes 9 relax, and the upper cylinder 4 lowers. While being stored inside the body 5, a normal fountain posture is maintained until the water level reaches a low level L, and the aeration process in the deep part is continued.

On the other hand, when the stored water rises from the low water level L toward the high water level H, the upper structure connecting the base float 2, the water flow generating machine 3 and the upper cylinder 4 is connected to each depth adjusting rope. The long draft 6 moves up along with the connection of 9 and the elongated draft 6 pulls out the upper cylinder 4 from the lower cylinder, while maintaining the normal fountain posture and continuing the aeration process of the deep part.

After that, when the base float 2 continues to move upward toward the high water level, the upper side receiving flange 20 of the upper cylinder 4 engages with the inner peripheral edge of the lower float frame 23 of the lower cylinder 5. As a result, the supporting leg 8 is lifted together with the lower cylindrical body 5, and the deep-layer fountain device 1 is returned to the original position adapted to the high water level H.

In this way, when the raising and lowering operation of the base float 2 is repeated, the base float 2 is connected to the lower cylinder body 5, the buoyancy adjusting float 7 and the supporting leg 8 underwater of the lower structure. Since the weight does not affect, the upper structure including the base float 2 can be moved up and down extremely smoothly.

Embodiment 2 This Embodiment 2 is shown in FIG. 2, in which a long draft which is a water absorption pipe is constructed in a three-stage form.

Since the basic structure of the deep-layer fountain device common to the second embodiment has already been described with reference to FIG. 1, the same parts are designated by the same reference numerals and the description thereof will be omitted.

The deep fountain device 31 shown in FIG. 2 is applied to a reservoir having a deep water depth and extremely large fluctuations in water level. The base float 2, the water flow generating machine 3, the supporting leg 8, the upper cylinder body. 32, a first lower cylinder 33 and a second lower cylinder 34, a long draft 35, a first buoyancy adjusting float 36, a second buoyancy adjusting float 37, a supporting leg 8 and a depth adjusting rope 38. Is configured as.

The long draft 35 is fitted to the upper cylinder 32 fixed to the base float 2 so as to surround the suction side S of the water flow generating machine 3 and to be able to move up and down with respect to the upper cylinder 32. The first lower cylindrical body 33 and the second lower cylindrical body 34 that is fitted to the first lower cylindrical body 33 so as to be able to move up and down are configured to be expandable and contractable.

The upper tubular body 32 has a mounting flange 39 provided at the upper end portion joined to the lower surface of the upper float frame 11 and fixed by a bolt or the like, while a receiving flange 40 and a strengthening ring 41 are provided at the lower end portion. Has been.

The first lower cylindrical body 33 has a lower surface of the first float frame 43 in which a mounting flange 42 provided at an upper end portion surrounds the outer periphery of the upper cylindrical body 32 and faces the upper side of the receiving flange 40. On the other hand, a receiving flange 44 and a strengthening ring 45 are provided on the lower end portion while being attached in a hanging manner.

A second float frame in which the second lower tubular body 34 and a mounting flange 46 provided at the upper end portion surround the outer periphery of the first lower tubular body 33 and face above the receiving flange 44. The support leg 8 is attached to the lower surface of the support 47 in a suspended manner, and the supporting leg 8 is connected to a connecting flange 48 provided at the lower end.

The first buoyancy adjusting float 36 is for preventing the underwater weight of the first lower cylindrical body 33 immersed in the stored water from being applied to the base float 2, and is formed in a donut shape in a plan view. At the same time, a water injection nozzle equipped with a plug or a valve is attached to the lower surface of the first float frame 43.

The second buoyancy adjusting float 37 is for preventing the underwater weight of the second lower cylindrical body 34 immersed in the stored water from being applied to the base float 2 and the first lower cylindrical body 33. A water injection nozzle having a plug or a valve is attached to the lower surface of the second float frame 47 while having a donut shape in plan view.

The first buoyancy adjusting float 36 and the second buoyancy adjusting float 37 are filled with water in the same manner as in the case of the above-described first embodiment, so that the first lower cylindrical body 33 and the second lower cylindrical body 33. The underwater weight of the body 34 is adjusted so as to approach the specific gravity of the stored water.

Further, on the outer circumferences of the upper ends of the first buoyancy adjusting float 36 and the second buoyancy adjusting float 37, four intermediate rope holders 49 and 49 corresponding to the upper rope holders 12 and 13 are provided. A lower rope holder 50 is provided.

The depth adjusting ropes 38 are inserted through the upper rope holders 12 and 13, the intermediate rope holder 49, and the lower rope holder 50, respectively.

Each of the depth adjusting ropes 38 has an end on the underwater side as a retainer 51 entwined with this end, and an end on the water side as a retainer 52 entwined with this end. By adjusting the length from the retainer 51 to the retainer 52, the suction depth at which the support leg 8 is seated on the bottom of the pond can be adjusted.

In the above structure, when the water level of the reservoir water changes between the high water level H and the low water level L, the lifting operation of the base float 2 that follows this water level change and the long draft Similar to the case of the first embodiment, except that the correct position of the deep-layer fountain device 31 is maintained by the expansion and contraction operation of the upper cylinder body 32, the first lower cylinder body 33, and the second lower cylinder body 35. Is performed.

[0051]

[Effect of the device]

 In the deep fountain device of the present invention, a long draft is connected to the suction side of a water flow generating machine that is held by a base float so that it can be moved up and down, and the long draft is connected to the upper cylinder body fixed to the suction side. The upper cylinder is constructed so that it can be expanded and contracted by at least one lower cylinder fitted to be able to move up and down, and the lower cylinder has a constant weight for the base float. Since a float for adjusting buoyancy is provided for this purpose, the deep fountain device absorbs changes in height due to water level fluctuations due to the expansion and contraction of the long draft, even if the water level in the reservoir changes significantly. Therefore, the posture of the fountain is always kept correct and the aeration process in the deep layer is effectively performed.

In addition, the base float has an advantage that a smooth lifting operation is performed because the weight of the lower structure including the lower cylinder is not added.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a deep-layer fountain device according to a first embodiment.

FIG. 2 is a vertical cross-sectional view of a deep-layer fountain device according to a second embodiment.

[Explanation of symbols]

 1,31 Deep fountain device 2 Base float 3 Water flow generating machine 4,32 Upper cylinder 5 Lower cylinder 33 First lower cylinder 34 Second lower cylinder 6,35 Long draft 7 Float adjustment float 36 First buoyancy adjustment float 37 Second buoyancy adjustment float S Suction side

Claims (1)

[Scope of utility model registration request] 1. A deep fountain device in which a long draft is connected to the suction side of a water flow generating machine that is held by a base float so that it can be moved up and down, wherein the long draft is an upper cylinder fixed to the suction side. A body and at least one lower cylinder fitted to the upper cylinder so as to be able to move up and down, are configured to be expandable and contractible, and in order to keep the weight of the base float constant in the lower cylinder. The deep fountain device is provided with a float for adjusting the buoyancy.