JPH08224571A - Floating water intake - Google Patents

Abstract

(57) [Summary] [Purpose] Regarding a floating water intake device used in the fields of water purification, fountains, water supply, etc., ensure reliable intake of water without inhaling air. [Constitution] A water intake pipe 5 is attached to the floating body 1, a pump 6 is provided at one end, and an underwater intake 4 is provided at the other end. Pump 6
From there, a piping hose 8 extends to near the water bottom via a sluice valve 7. A water intake opening 3 is opened near the water surface 11 and is surrounded by a water intake chest 2 together with the water intake 4. The water intake is sucked from the opening 4 through the water intake 4 having a depth that does not suck air, and a piping hose It is circulated to the water bottom via 8.
In this way, water with a high dissolved oxygen concentration in the surface layer can be reliably taken in.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water purifying device used for purifying water such as oceans, freshwater lakes and rivers, and a floating body type water intake device which can be used in various fields such as fountains and waterworks. .

[0002]

2. Description of the Related Art A conventional floating body type water intake structure is shown in FIG. In the figure, 10 is a floating body equipped with equipment for purifying water bodies, 5 is an intake pipe having an intake 4 for sucking surface water, 6 is a pump for sucking from the intake pipe 5, 8 is pumped from the intake 4. Further, a piping hose suspended to the vicinity of the water bottom for supplying the surface water to the vicinity of the water bottom, and 7 is a sluice valve provided at the base of the piping hose 8. By installing the water intake pipe 5 on the floating body 10 in this way, surface water at a constant depth from the water surface can always be sucked up.

[0003]

The main cause of water quality deterioration in water bodies is that natural mixing of surface water and low-layer water is difficult. That is, when natural mixing of surface water and low-layer water is difficult, dissolved oxygen in the low-layer water is almost eliminated, so that anaerobic microorganisms decompose organic matter to generate hydrogen sulfide, which is a source of foul odor, and methane gas. Water quality will deteriorate. Therefore, it is necessary to artificially mix surface water and low-layer water to increase dissolved oxygen at the bottom of the water and prevent activation of anaerobic microorganisms.

By the way, since dissolved oxygen has a higher concentration as it approaches the surface water surface, in such artificial mixing,
Ideally, the surface water used to improve water quality should be drawn to the surface of the water or a layer near the surface and circulated to the bottom. However, the various conventional water purification devices have the above-mentioned structure, and when the position of the water intake is raised in order to suck up the water in the layer near the water surface as much as possible, the problem of air intake occurs. When the air is sucked in, the function of the pump is suddenly deteriorated, and the pump is damaged.
Therefore, the depth of the intake port must be set to the minimum required depth to avoid air suction, and surface water with high dissolved oxygen concentration could not be taken.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems found in the prior art, and to provide a floating body type water intake device which can efficiently take in surface water having a high dissolved oxygen concentration without inhaling air. .

[0006]

Therefore, according to the present invention, a water intake opening is provided in the lower part of the floating body near the surface layer of the water surface, and the intake chest is provided with the water intake opening provided at a depth where air is not sucked. It will be constructed so that it is divided by and the water is taken in.

That is, the present invention is provided with a water intake opening installed near the water surface of a floating body, a water intake opening installed at a depth below the water surface that does not cause air suction, and a lower portion of the floating body. A floating body type water intake device comprising: a water intake chest that partitions the water intake port and the water intake opening so as to communicate with each other.

[0008]

According to the present invention, by such means, water is guided into the water intake chest through the water intake opening provided near the water surface in the lower part of the floating body, and is sucked from the water intake port in the water intake chest. The water intake chest divides the water intake port and the water intake opening below the surface of the floating body, and the position of the opening can be set at an arbitrary position, so that it is possible to take water from near a certain water surface. Since the intake port in the intake chest is located at a sufficient depth so that there is no risk of air being sucked in, water intake from the vicinity of the water surface from the opening is easily guided to the intake port in the intake chest, and there is no problem. .

[0009] Water having a high dissolved oxygen concentration in the surface layer of the water area, which is necessary for the water area purification device that eliminates the oxygen-deficient water mass in the lower layer of the water area by such water intake, does not cause a problem such as intake of air from the intake port. Water can be reliably taken. Further, since no air is sucked in, damage to the pump or the like is prevented and reliability is improved.

[0010]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a sectional view of a floating body type water intake device according to an embodiment of the present invention. In the figure, 1 is a floating body, 2 is an intake chest attached to the lower part of the floating body, 3 is an opening opened in the intake chest 2, 5 is an intake pipe, and an intake port 4 is at the lower end.
The upper end is connected to the pump 6, and the water intake 4 is attached to the lower part of the water intake chest 2 through the floating body 1. Reference numeral 8 is a piping hose, one end of which is a pump 6 through a gate valve 7.
And the other end extends to near the bottom of the water. Reference numeral 7 is a sluice valve provided between the pump 6 and the piping hose 8 described above.

With such a structure, the water intake chest 2 is provided below the water surface 11 under the floating body 1, and the water intake is always provided below the water surface where air is not sucked. Water surface 1
Water in the vicinity of 1 enters the intake chest 2 through the opening 3 of the intake chest 2 and is taken in through the intake port 4 of the intake pipe 5,
This water is circulated to the bottom of the water through the piping hose 8 to improve the concentration of dissolved oxygen. The water intake is performed from a sufficient water depth that does not suck air into the opening of the water intake chest 2 and the position of the opening 3 can be set arbitrarily, so that the water can be taken from near the water surface 11. Since the position of the water intake port 4 in the water intake chest 3 is arranged at a depth where there is no fear of air suction, water can be taken from near the water surface without any problem.

Here, it is preferable that the opening 3 of the water intake chest 2 is opened so as to be located in the surface water portion having a high dissolved oxygen concentration in consideration of the position where the water intake chest floats. on the other hand,
The water intake port 4 is set so as to have a water depth at which the phenomenon of air suction does not occur from the relationship between the suction amount of the pump 6 and the water depth. If the water intake port 4 is a water intake port that does not suck air in the conventional floating body type water intake device, the water intake chest part is attached to the bottom of the main body of the floating body 1 as in the embodiment of the present invention while maintaining the water intake position. If it is modified, the existing device can be used as it is.

Even when water of a layer having a certain depth is taken from the water surface for another purpose, the present invention can be applied only by appropriately adjusting the position of the opening of the water intake chest 2.

According to such an embodiment, the water of high dissolved oxygen in the surface water portion from the opening 3 of the water intake chest 2 is taken from the water intake 4 without sucking air even if the water surface 11 changes. Since this water can be circulated to the bottom of the water through the piping hose 8, the water quality can be effectively improved, and since the air is not sucked in, the damage of the pump 6 is reduced and the reliability is improved. Is.

[0015]

As described above in detail, according to the present invention, a water intake opening is provided in the lower portion of the floating body near the surface layer of the water surface, and the opening is provided at a depth at which air is not sucked. Since the water intake is divided into a water intake and a water intake chest, water with a high dissolved oxygen concentration in the surface layer of the water area, which is necessary for a water area purification device that eliminates anoxic water lumps in the lower part of the water area, is taken from the water intake. Water can be reliably taken in without causing problems such as air suction. Further, since no air is sucked in, damage to the pump and the like is prevented, and the reliability of the water intake device is also improved.

[Brief description of drawings]

FIG. 1 is a sectional view of a floating body type water intake device according to an embodiment of the present invention.

FIG. 2 is a side view of a conventional floating body type water intake device.

[Explanation of symbols]

 1 Float 2 Intake Chest 3 Opening 4 Intake 5 Intake Pipe 6 Pump 7 Gate Valve 8 Piping Hose 11 Water Surface

Claims (1)

[Claims] 1. A water intake opening installed near the water surface of a floating body, an water intake opening installed at a depth below the water surface sufficient to prevent air suction, and the water intake opening provided at the bottom of the floating body. And a water intake chest that partitions the water intake opening so as to communicate with each other.