JP3000042B2 - Floating body water purification system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for purifying a water body by floating a floating body in a water area such as a river or a lake, and more particularly to an apparatus for purifying a water area by working from the floating body. tomb of the water quality improvement as Ri, also a blue-green algae
Which growth of microalgae about floating water purification device was so that reduced.

[0002]

2. Description of the Related Art FIG. 4 shows an example of a conventional floating body type water body purifying apparatus. A surface water 5 having a high oxygen concentration is suctioned by a water supply device 47 using a propeller mounted on a floating body. Water is supplied to the bottom of the water via a water supply pipe 46. At this time, bubbles are mixed into the surface water sucked by the water supply device 47 by a normal bubble mixing device 48 using a porous air discharge nozzle. In addition, in FIG. 4, the code | symbol 4 shows a poor oxygen aqueous layer,
14 is a generator, 26 is an air compressor, and 49 is a freight machine.

FIG. 5 shows another example of a conventional floating body type water body purifying apparatus. An impeller type water feeding apparatus 52 which is driven to rotate via a vertical shaft of a motor 51 installed on a floating body 50 is used. A downward flow 53 is generated which goes downward. Then, the surface water 5 having a high oxygen concentration reaches the poor oxygen aqueous layer 4 near the water bottom with the generation of the downward flow 53.

[0004]

By the way, in the conventional floating body water purifier as shown in FIG.
However, there is a problem that the frictional resistance in the water pipe is large, the amount of water per unit power is small, and the entrainment of surrounding water does not occur, so that the water quality improvement range is narrow. Furthermore, since the normal bubble mixing means is used, the diameter of the generated bubbles cannot be reduced, and the residence time of the bubbles in water is shortened, resulting in a decrease in the oxygen dissolution efficiency. .

[0005] Further, in the floating body type water area purifying apparatus as shown in Fig. 5 , since the water flow generator is directly fixed to the floating body and there is no flow direction adjusting mechanism, it is difficult to control the depth and direction of the discharge water. For this reason, when an environmental change such as a change in water depth occurs due to a shallow water bottom or a decrease in the water level on the water surface, it is difficult to adjust the flow velocity, and if the downward flow 53 is too strong, the bottom soil 5
4 directly hits the bottom layer, causing the bottom soil to be rolled up. If the downward flow 53 is too weak, short-circuit circulation of the surface water 5 occurs, and the oxygen-deficient aqueous layer 4 remains.

SUMMARY OF THE INVENTION The present invention aims at solving the above-mentioned problems. A floating body is used to support a water flow generator at a required depth in water so that surface water and intermediate water having a high oxygen concentration can be suctioned. In addition to securing the required discharge depth, the oblique flow that can lengthen the reaching distance to the water bottom and avoid direct hits to the water bottom, adds a large amount of entrained water before reaching the water bottom The objective of the present invention is to provide a floating body type water purification system capable of achieving economical large-capacity water supply to the bottom of the water, and further improving dissolved oxygen concentration by including fine bubbles of fresh air. I do.

Further, the present invention aims to increase the amount of dissolved oxygen by giving fluidity to the remaining water mass in the bottom layer, which contributes to the reduction of the amount of dissolved oxygen, and to reduce the amount of dissolved oxygen that is consumed in the bottom. It is another object of the present invention to provide a floating body water purification system capable of efficiently purifying water bodies so that pollutants as substances can be diffused.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, a floating water body purifying apparatus of the present invention is provided with a water flow generation device having open ends at both ends mounted on a self-propelled or non-self-propelled floating body via a support member. A tube, a storage mechanism for moving the water flow generation tube from a use state in water to a storage position above the water surface, and supporting the water flow generation tube diagonally up and down in the water at a distal end of the support member .
That means a discharge port of the lower end toward inhaled high above the water oxygen concentration through an inlet of the upper end diagonally downward of the water flow generator tube in use while supporting vertically obliquely same water circulating tube into the water And a water supply device mounted in the water flow generation cylinder to pump the oblique flow from the bottom to the bottom of the water flow.

The floating body water purifier of the present invention is provided with a water quality measuring device for measuring water temperature, salinity and dissolved oxygen, and an underwater monitoring device including an underwater television camera, and is obtained by the underwater monitoring device. It is characterized by being equipped with an information monitoring device.

Further, the floating water body purifying apparatus of the present invention comprises:
The floating body is configured as a catamaran, and the support member is formed in an arm shape and has a base end pivotally supported by the hull so as to be able to turn between the catamaran of the catamaran in parallel with a vertical plane including the hull center line. And the above-mentioned water flow generating cylinder is attached to the tip.

In the floating body water purifying apparatus according to the present invention, the water flow generating cylinder is rotatably supported by a tip of the support member and adjusts a tilt angle when the water flow generating cylinder is used. The generating cylinder inclination angle adjusting mechanism is mounted between the water flow generating cylinder and the support member.

Further, the floating body water purifying apparatus of the present invention comprises:
The storage mechanism is characterized in that the storage mechanism is configured as a support member rotation mechanism that stores the water flow generating cylinder at a position above the water surface by rotating the support member to a substantially horizontal state.

Further, in the floating body water purifying apparatus according to the present invention, a plurality of the water flow generating cylinders are arranged side by side, and the center line of the hull is arranged such that the discharge ports of the left and right outer water flow generating cylinders are directed toward the divergent directions. It is characterized in that it is mounted on the support member at a more outward angle.

Further, the floating body water purifying apparatus of the present invention comprises:
Fine air bubbles mixed into the water sucked into the water flow generation cylinder
Connected to the water flow generating cylinder mounted on the floating body
It is characterized by having provided air press-fitting means
You.

[0015]

In the above-mentioned floating body water purifying apparatus of the present invention, the surface water and the middle water having a high oxygen concentration are supported at both ends vertically.
Since it is sucked into the open-type water flow generation cylinder and pumped toward the water bottom as an oblique flow, the horizontal flow of the water mass is promoted, and the action of entraining a large amount of water near the surface layer or middle layer with high oxygen concentration is performed. As a result, the amount of dissolved oxygen in the bottom layer can be greatly increased, and the proliferation of microalga such as blue-green algae is further reduced. Also, if the inclination angle adjusting mechanism of the water flow generation cylinder is provided, the direction of the oblique flow is adjusted,
According to the depth of the body of water, the oblique flow to the bottom of the water is appropriately pumped.

In addition to the fact that microbubbles are mixed into the oblique flow by the air injection means, a large amount of water having a high oxygen concentration is sent to the oxygen-deficient water layer along the water bottom, and the water is supplied near the water bottom. The action of destroying the cliff with the staying temperature difference and the salt content difference is performed. In addition, there is also an action of sending microalgae such as blue-green algae in the water layer to the vicinity of the water bottom where light is difficult to reach, thereby reducing the proliferation action.

Further, in the floating body water purifying apparatus of the present invention, the support member of the water flow generating tube is formed in an arm shape and extends substantially in the longitudinal direction above the water surface between the catamaran of the catamaran. Therefore, the water flow generating cylinder is lowered to the underwater use state with the downward turning by the support member rotating mechanism, so that the moving operation for using and storing the water flow generating cylinder is easily performed. Will be able to A plurality of the water flow generating cylinders are arranged side by side at the tip of the arm-shaped support member, and the discharge ports of the left and right outer water flow generating cylinders are directed toward each other so that the oblique flow is pumped near the water bottom. Is performed over a wide range.

[0018]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a vertical sectional side view of a floating body water purifying apparatus according to an embodiment of the present invention. FIG. 2 is a horizontal sectional view showing the vicinity of a draft surface, and FIG. FIG.

As shown in FIGS. 1 to 3, surface water 5 having a high oxygen concentration (including the middle water when the oxygen concentration of the middle water is high) protrudes from the hull end of the catamaran 21 as a floating body. Three open-ended water flow generating cylinders 1 for sucking and forcing the water toward the bottom of the water are attached to the distal ends of two arm-shaped support members 20 via a securing frame 15. And each
The water flow generating cylinder 1 is raised in water during use by means described later.
It is designed to be supported diagonally below. In order to facilitate the suction of water from above in each of the water flow generating cylinders 1 in a vertically inclined support state during use , the end of the cylindrical body having the suction port 1a at the upper end is slightly upward as shown in FIG. It is formed to be curved.

Each arm-shaped support member 20 has its base end pivotally supported by a hull via a hinge 31 so as to be able to turn parallel to a vertical plane including the hull center line between the catamaran of the catamaran 21. As a support member rotation mechanism for storing the water flow generating cylinder 1 at a position above the water surface by rotating the support member 20 to a substantially horizontal state, a rotation mechanism by a hydraulic cylinder 32 is provided or suspended. A hoisting rotating mechanism including a rope 33, a davit 35 and a hoisting winch 34 is provided.

Each of the water flow generating cylinders 1 is provided with a water supply device 47 such as a jet nozzle (or an impeller) inside, and the surface water is sucked by a water supply pump 16 in the ship and discharged through discharge pipes 22 and 30. The jet is jetted from a jet nozzle in the water flow generating cylinder 1 to generate an oblique flow 3.

At this time, the surface water is also sucked by the pressurized water pump 17 and sent to the pressurized tank 27 while being mixed with the air fed from the air compressor 26 by the air mixing device 9 to increase the dissolved amount of oxygen. Can be In addition,
Instead of air, pure oxygen may be mixed. That is, in the present embodiment, the concept of air includes oxygen gas. The discharge pipe 28 from the pressurized tank 27 merges with the water flow from the discharge pipe 22 of the water pump 16 having a relatively low discharge pressure, and the merge is such that a suction effect can be generated by the principle of an eductor. This is performed via the nozzle 29. In this way, fine bubbles are mixed into the jet nozzle driving water flowing through the discharge pipe 30.

The arm-shaped support member 20 may be formed of a pipe and also serve as a water supply pipe for driving water. Steel pipes or pressure-resistant hoses are used as the discharge pipes 22, 28, and 30 for the driving water. As shown in FIGS. 2 and 3, three water flow generation cylinders 1
The discharge ports 1b of the water flow generating cylinders 1 on the left and right sides are attached to the lashing frame 15 at an angle outward from the center line of the hull so as to face in the directions of expanding toward each other. And each water flow generating cylinder 1 integrated with the lashing frame 15,
Figure to adjust the tilt angle when using underwater
As shown in FIG. 1, the lashing frame 15 is pivotally supported by the distal end of the arm-shaped support member 20, and a hydraulic cylinder 23 as a water flow generating cylinder tilt angle adjusting mechanism includes a lashing frame integrated with the water flow generating cylinder 1.
It is mounted between 15 and the support member 20. That is, water
When the flow generating cylinder 1 is used, the flow generating cylinder 1 is inclined at the tip of the support member 20.
As a means for supporting the water flow generation cylinder 1,
Arm 15 is supported by the support member 20 and the securing frame is
A hydraulic cylinder 23 is mounted between the arm 15 and the support member 20.
ing.

The water flow generating cylinder 1 or its securing frame 15
Is provided with a water quality measuring instrument 8, and such a water quality measuring instrument is also attached to the hull if necessary. In addition, a hanging or towing type underwater monitoring device 10 including a water quality measuring instrument and an underwater television camera is also provided so that the effect of improving the water quality can be confirmed behind the water flow generating cylinder 1. Information obtained by these devices 8 and 10 is observed by a monitor device 11 on the ship. The above water quality measuring instruments measure water temperature, salt concentration, dissolved oxygen, and the like.

An operation for setting the installation water depth of the water flow generating cylinder 1 to an optimum depth is performed based on the information observed by the monitor device 11, and the adjustment for the optimum operation is performed in this manner. Further, a ship position measuring device 37 using an artificial satellite and a sounding device 36 such as an echo sounder are provided on the ship, and the depth and depth of the work are measured to enhance the safety and effect of the work. In FIG. 1, reference numeral 4 denotes an anoxic water layer at the bottom of the water, 6 is a bottom mud layer, 7 is a driving flow, 12 is a self-propelled device, 13 is a rudder device, 14 is a power generator,
Reference numeral 38 denotes an inspection / adjustment platform protruding from the rear of the hull, and E denotes a main engine.

The floating water purification system of the present embodiment is constructed as described above, and the jet type water flow generating cylinder 1 for pumping the surface water 5 as the oblique flow 3 to the oxygen-depleted water layer 4 at the bottom of the water is used when the water type water purification device is used.
Together provided so as to be supported by the lower obliquely, the water flow
Since the hydraulic cylinder 23 is provided as a tilt angle mechanism for adjusting the direction of the oblique flow 3 from the generating cylinder, the oblique flow 3 is appropriately pumped to the bottom according to the water depth and the water quality of the water area. Since the oblique flow 3 is accompanied by the entrained flow 7, the oblique flow 3 includes the air compressor 26 and the pressurized tank 2.
7. In combination with the mixing of the fine bubbles from the pressurized water device 39 including the pressurized water pump 17 and the like, it becomes possible to send a large amount of oxygen-rich water to the poor oxygen aqueous layer 4.

When the catamaran 21 as a floating body of the apparatus is moved after the work is stopped, the water flow generating cylinder 1 is previously lifted above the water surface by the raising / lowering / retracting mechanism. There is also an effect that the navigation of the ship is performed in a state of low resistance. Further, in this apparatus, the worker controls the installation depth and inclination angle of the water flow generation tube while watching the monitor device 11, controls the air bubble mixing by adjusting the opening of the valve 19, and controls the water flow generation tube 1 by the valve 18. However, a control system for automatically controlling the flow rate based on detection information from the water quality measuring device 8, the underwater monitoring device 10, and the echo sounder 36 may be provided. .

Further, in this embodiment, all the water flow generating cylinders 1 are attached to the support / storage mechanism separated from the hull, but the depth adjustment function of the support / storage mechanism is omitted and the water flow generation cylinder 1 is fixed to the hull. A water flow generating cylinder can also be provided. In addition, the support / storage mechanism of the water flow generating cylinder 1 may be of a rotary type or a telescopic rod type driven by a hydraulic rod or the like. According to this method, the storage length of the water flow generating tube on the ship can be shortened, so that the water flow generating tube is stored on the deck at the end of the work to facilitate maintenance and inspection.

Depending on the situation, instead of the pressurized water system for mixing air, an air diffuser for air discharge is installed inside the water flow generating cylinder, or an air mixing device is added to the piping system on the discharge side of the water supply pump. The installed one may be used .

[0030]

As described above in detail, the following effects can be obtained by the floating water purification system of the present invention. (1) Open-ended water attached to a floating body via a support member
During use, the flow generating cylinder rises into the water at the tip of the support
It is provided so as to be supported diagonally below, and
A water supply device for generating oblique flow is installed inside.
As a result , the oblique flow to the bottom of the water will be properly pumped, and since the oblique flow involves entrainment, a large amount of oxygen-rich water will be efficiently sent to the oxygen-deficient water layer along the bottom of the water be able to. In addition, the proliferation action of microalgae such as blue-green algae can be reduced. (2) Outer left and right outermost water flow generating cylinders that pressurize surface water as oblique flow to the bottom of the water are installed diverging from each other. . (3) Simultaneous pumping of a large amount of surface water to the bottom layer can destroy the temperature and salinity stratification of the water area. (4) Equipped with an underwater monitoring device including a water temperature, salinity and dissolved oxygen water quality measuring device and an underwater television camera, and the detected information is monitored by the monitoring device, so that the operation of the device is controlled accurately. Thus, the oblique flow pressure feeding to the water bottom can be appropriately performed. (5) The water flow generating cylinder is provided so as to be able to move up and down via the storage mechanism,
When the water flow generating cylinder is not used, it is raised to above the water surface, so that the floating body is moved in a state where the water resistance is small. (6) If means for mixing air bubbles into the water drawn into the water flow generating cylinder is provided, oxygen can be more efficiently supplied to the oxygen-deficient aqueous layer along the water bottom.

[Brief description of the drawings]

FIG. 1 is a vertical sectional side view of a floating body water purifying apparatus as one embodiment of the present invention.

FIG. 2 is a horizontal sectional view of the apparatus of FIG. 1 in the vicinity of a draft surface.

FIG. 3 is a cross-sectional view of the device of FIG.

FIG. 4 is a side view showing a floating body water purifying apparatus as an example of a related art.

FIG. 5 is an elevation view showing another example of the conventional floating water body purification device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Water flow generating cylinder 1a Suction port 1b Discharge port 3 Oblique flow 4 Anoxic water layer 5 Surface water 6 Bottom mud layer 7 Entrained flow 8 Water quality measuring instrument 9 Air mixing device 10 Underwater monitoring device 11 Monitoring device 12 Self-propelled device 13 Steering Apparatus 14 Generator 15 Lashing frame 16 Water pump 17 Pressurized water pump 18, 19 Valve 20 Arm-shaped support member 21 Floating body (boat hull) 22 Discharge pipe 23 Hydraulic cylinder as water flow generating cylinder tilt angle mechanism 24 Drive unit 25 Water pipe 26 air compressor 27 pressurized tank 28 discharge pipe 29 merge nozzle 30 discharge pipe 31 hinge 32 hydraulic cylinder 33 rope 34 hoisting winch 35 davit 36 echo sounder 37 ship position measuring device 38 platform 39 pressurized water device 41 strainer 42 sea chest 43 anchor 44 mooring rope 45 Mooring Inch 46 fried water pipe 47 water supply device 48 normal bubble mixing apparatus 49 貨機 50 Floating 51 motor 52 impeller type water supply apparatus 53 downflow E master unit

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-8-2479 (JP, A) JP-A-6-313312 (JP, A) JP-A 5-269490 (JP, A) JP-A-59-1979 199391 (JP, A) Japanese Utility Model 1-168395 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) B63B 35/00

Claims (7)

(57) [Claims] An open-ended water flow generating cylinder mounted on a self-propelled or non-self-propelled floating body via a support member, and a storage for moving the water flow generating cylinder from a use state in water to a storage position above the water surface. a mechanism, the water flow generating tube of the support member
Means to support diagonally up and down in water at the tip and generate the same water flow
HasuMuko flow to bottom of water direction from the discharge port of the lower end toward the obliquely downward inhale high above the water oxygen concentration through an inlet of the upper end of the water flow generator tube in use while supporting vertically obliquely cylinder in water A water body purifying device, comprising: a water supply device mounted in the water flow generating cylinder to pressure-feed the water. 2. The underwater monitoring device according to claim 1, further comprising an underwater monitoring device including a water quality measuring device for measuring water temperature, salinity and dissolved oxygen, and an underwater television camera. A water body purifying device, characterized by being equipped with a monitor device for the information obtained in (1). 3. The floating body water purifier according to claim 1, wherein the floating body is configured as a catamaran, and the support member is formed in an arm shape, and the center of the hull is provided between the catamaran of the catamaran. A floating body water purifying device, characterized in that a base end is pivotally supported by a hull so as to be able to turn in parallel with a vertical plane including a line, and the water flow generating cylinder is mounted at a tip end. 4. The floating body water purifying apparatus according to claim 3, wherein the water flow generating cylinder is rotatably supported by a tip of the support member, and the inclination angle when the water flow generating cylinder is used is set. A floating water body purifying apparatus, characterized in that a water flow generating cylinder tilt angle adjusting mechanism to be adjusted is mounted between the water flow generating cylinder and the support member. 5. The floating body water purifier according to claim 3, wherein the storage mechanism stores the water flow generating cylinder at a position above the water surface by rotating the support member to a substantially horizontal state. A floating body water purifying apparatus, wherein the floating body water purifying apparatus is configured as a supporting member rotating mechanism. 6. The floating water purifier according to claim 3, wherein a plurality of said water flow generating cylinders are arranged side by side, and discharge ports of each of the left and right outer water flow generating cylinders are divergent. A floating water body purifying apparatus, wherein the water body purifying apparatus is mounted on the support member at an angle outward from the center line of the hull so as to be directed in the following direction. 7. A float according to claim 1, wherein
In the body type water body purification device,
In order to mix fine air bubbles into the water,
Air press-fitting means mounted on the water flow generating cylinder
A floating body of water body purifying device, characterized in that it is provided.