JPH06142679A - Purifying device and its operating method - Google Patents

Abstract

PURPOSE:To provide the operating method for the purifying device and its device, by which a ventilation tube and the whole device not exposed on the water surface and a scene is not spoiled. CONSTITUTION:The device is provided with an underwater motor 11, a stream straightening cylinder 12 attached to the motor underwater 11, a screw 13 driven by the underwater motor 11, a ventilation tube 14 for sucking air into the stream straightening cylinder 12 by utilizing negative pressure generated by a rotation of the screw 13, and plural pieces of floats 21 for suspending them in the water, and control is executed by a weight 22 so that gravity of the purifying device main body becomes a little larger than buoyancy. While the underwater motor 11 is being stopped, the whole device including the upper end opening of the ventilation tube 14 and the float is always submerged into the water, and while the underwater motor 11 is being operated, at least the upper end opening is exposed on the surface of the water by reaction force of a water flow caused by a rotation of the screw 13. By air sucked through the ventilation tube 14, minute bubbles are generated in a stirring flow and water is purified.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a purification device for a pond or the like, and more particularly to a purification device used for a pond or the like where landscape is important.

[0002]

2. Description of the Related Art Conventionally, in a pond where water is stagnant, a purifying device is used to stir the pond water to generate a water flow, and oxygen is supplied by aeration to suppress the progress of pollution of the pond. Has been done. As a conventional purifying device, for example, there is an aeration device disclosed in Japanese Utility Model Publication 1-31356.

This aeration device generates a negative pressure in water by the rotation of a stirring blade, and uses this negative pressure to suck air on the water surface into the water and agitate the self-priming stirring device. It consists of an attached bracket, a float provided on the bracket, and a guide bar that engages the bracket.

The guide bar is erected vertically on the bottom of the water, and a bracket is attached to the guide bar. The bracket is provided on one or more floats, and even if the water level changes, the stirring device responds to the fluctuation of the water level, and the stirring device is locked to the guide bar even during operation. .

[0005]

However, in the conventional purifying apparatus, since the entire purifying apparatus is always exposed on the water surface, it becomes an obstacle to the scenery.
Therefore, an underwater type that is not exposed on the water surface has been devised.
However, the pond bottom has a lot of ups and downs, and a great deal of labor is required not only for installation work but also for maintenance work and relocation work. The present invention was devised in view of the above circumstances, and an object of the present invention is to provide a purification device that is easy to install and maintain without damaging the landscape.

[0006]

A method of operating a purifying apparatus according to the present invention is a method of operating a purifying apparatus suspended in water so that the purifying apparatus includes an underwater motor and a rectifying cylinder attached to the underwater motor. It has a main body consisting of a screw driven by a submersible motor, a ventilation pipe for sucking air into the rectifying cylinder by using the negative pressure generated by the rotation of the screw, and a plurality of floats connected to the main body. In addition, while the submersible motor is at rest, the entire top end opening of the vent pipe and the float are immersed in the water, and at least the top end opening of the vent pipe is projected above the water surface during operation of the submersible motor. There is.

Further, the purifying device is a purifying device suspended in water so as to be swingable, and comprises a submersible motor, a rectifying cylinder attached to the submersible motor, a main body composed of a screw driven by the submersible motor, and a screw. It is equipped with a ventilation pipe that draws air into the rectifying cylinder by using the negative pressure generated by rotation, and a plurality of floats connected to the main body. It is characterized in that it is always immersed in water, and at least the upper end opening is exposed above the water surface by the reaction force of the water flow caused by the rotation of the screw only while the submersible motor is operating.

Further, the submersible motor has a hollow drive shaft, the drive shaft is connected to a ventilation pipe bent in an L-shape on the opposite output side, and the output side is rectified by a screw. Includes those that are open inside. Further, the main body also includes a main body suspended in a predetermined position through a plurality of tow ropes in the output side and the counter output side of the submersible motor. Further, it also includes one provided on a mechanical lifting device that is raised to a predetermined position after the submersible motor is turned on, and is lowered to a predetermined position after the submersible motor is turned off. Further, the purifying device is swingably suspended in water, and the main body is composed of an underwater motor, a rectifying cylinder attached to the underwater motor, a screw driven by the underwater motor, and a negative pressure generated by the rotation of the screw. A ventilation pipe that draws air into the rectifying cylinder by using it, a plurality of floats connected to the main body, a pair of mooring poles standing vertically on the bottom of the water, the tip of the mooring pole and the submersible motor output side of the main body It also includes a support bar that swingably connects the ends.

Further, it is a purifying device which is swingably installed in water, wherein a submersible motor, a rectifying cylinder attached to the submersible motor, a main body composed of a screw driven by the submersible motor, and a negative force generated by rotation of the screw. A ventilation pipe that draws air into the rectifying cylinder using pressure, an anchor provided on the bottom of the water, a support bar that connects the anchor and the main body so that the main body can swing, a tow rope that suspends the main body in a predetermined position, and a tow Equipped with a rope winding device, and winds the tow rope to expose the upper end opening of the ventilation pipe on the water surface while the submersible motor is operating, and includes the upper end opening of the ventilation pipe by its own weight while the submersible motor is at rest. It is characterized by being able to immerse the whole body in water.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a front view of the purifying device, FIG. 2 is a plan view of the same,
FIG. 3 is a side view of the same, and each shows a state in which the submersible motor is in operation. 4 and 5 are front views for explaining the operating principle of the purifying device. FIG. 4 shows a state of rest and FIG. 5 shows a state of operation. FIG. 6 is a vector diagram for explaining the operation. The purifying device 10 of the present invention includes an underwater motor 11, a rectifying cylinder 12, and a screw.
13, a ventilation pipe 14, a bracket 15, a plurality of floats 21 connected to the bracket 15, and a weight 22 are included, and the main body 10 is suspended at a predetermined position such as a pond by way of traction ropes 23, 24. . The submersible motor 11 is sealed so that external water does not enter inside, and is provided with a hollow drive shaft 111 whose both ends are open.

The flow straightening cylinder 12 is formed in a cylindrical shape with its tip wider than the base end, and the base end is attached to the frame of the submersible motor 11. Further, a plurality of water inlets 121 are provided on the peripheral surface on the base end side. Screw 13 is pipe 13
1 is equipped with a stirring blade 132 on the outer circumference.
132 is directly connected to the drive shaft 111 so as to be accommodated in the straightening cylinder 12. The ventilation pipe 14 is bent into an L shape,
The opening on the lower end side is connected to the opposite output side of the drive shaft 111. On the other hand, the upper end opening is always immersed in the water while the submersible motor 11 is at rest, and the height of the vertical portion of the ventilation pipe 14 can be adjusted so as to be exposed on the water surface during the operation of the submersible motor 11. It has become. Further, the diameter of the ventilation pipe 14 is determined so that a required amount of air is sucked into the water while the submersible motor 11 is operating.

The submersible motor 11 is fixed to the bracket 15, and is disposed near the front and rear ends of the bracket 15 at right angles to the bracket 15.
A pair of output beam 152 and anti-output beam 153 are provided. A plurality of floats 21 are attached to the beams 152 and 153.
(In the example shown in the figure, two each is connected to the front and back). The bracket 15 is a mooring fitting 154 provided on the beams 152 and 153.
, 155 via two output-side traction ropes 23 and one anti-output-side traction rope 46, which are moored at predetermined positions such as on the shore. A power supply cable 112 of the underwater motor 11 is stretched around the anti-output side traction rope 46.

The weight 22 is attached to the bracket 15 so that the gravity of the main body 10 is slightly higher than its buoyancy. And while the submersible motor 11 is at rest, the ventilation pipe
The upper opening of 14 is always immersed in the water,
Further, the screw 13 is configured such that the direction of the central axis of the screw 13 has a predetermined inclination angle with respect to the water surface.

Next, the operation of the purifying device according to the present invention will be described. When the submersible motor 11 is at rest, the gravity W applied to the body 10 is buoyant.
Being slightly larger than the WF, the body 10 is supported by the tow ropes 23, 24 and is therefore submerged in water (Fig. 4).
. When the submersible motor 11 is operated, rotation of the screw 13 causes propulsive force in the direction of arrow A. An upward component force B that balances the reaction force F of this propulsive force and the tension T of the tow rope 23 is generated in the main body (Fig. 6). Upon receiving the component force B, the main body floats in the direction of arrow B, and at least the upper end opening of the ventilation pipe 14 is exposed above the water surface (Fig. 5). A negative pressure is generated in the water at the tip of the screw 13 by the stirring flow. Air is sucked from the upper end opening of the ventilation pipe 14 by this negative pressure. The sucked air is the drive shaft 11
1 and through the pipe 131 of the screw 13 and mixed with the agitated flow to form fine bubbles and diffuse into water. When the submersible motor 11 is stopped, the component force B is not generated, and the main body 10 is submerged in the water under its own weight and returns to the original position (FIG. 4).

The main body 10 is a tow rope 46 and an underwater motor 11
Since the opposite output side is moored, the main body 10 does not advance to the output side even if the underwater motor 11 is repeatedly turned on and off. In the present embodiment, the main body 10 is shown to be maintained parallel to the water surface while the submersible motor 11 is at rest, but it is not always necessary to maintain it parallel. That is, if the central axis of the screw 13 is slightly tilted with respect to the water surface, the downward inclination angle of the rectifying cylinder 12 is increased during the operation of the submersible motor 11, and therefore the distance for carrying fine bubbles is long. Therefore, the residence time of the fine bubbles becomes longer, and the purification effect can be enhanced. Further, the above-mentioned ventilation pipe 14 is not limited to this embodiment, and may be a device that sucks air into the rectifying cylinder by utilizing the negative pressure generated by the rotation of the screw and always immerses in the water when the submersible motor is at rest. Good.

Next, a second embodiment will be described with reference to the drawings. FIG. 7 is a side view of the purification device, and FIG. 8 is a plan view of the same. The purification device includes the main body 10, a ventilation pipe 14, a float 21, an anchor 31, a mooring pole 32 and a support bar 33.

The anchor 31 is fixed to the bottom of the water. The mooring poles 32 consist of one pair and are erected vertically on the anchor 31. The support bar 33 connects the tip of the mooring pole 32 and the output side beam 152 of the main body 10 to each other.
The tip of the shaft is pivotally supported by the mooring pole 32 via the pin 34.

While the submersible motor 11 is at rest, as shown by the broken line in FIG. 7, the entire submersible motor 11 is immersed in the water under its own weight. When the submersible motor 11 is operated, at least the upper end opening of the ventilation pipe 14 is exposed above the water surface by the reaction force of the propulsive force as described above. When the submersible motor 11 is stopped, the body 10 returns to its original posture due to its own weight. According to this embodiment, since the tow rope exposed on the water surface is eliminated, the appearance is good.

Next, a third embodiment will be described with reference to the drawings. FIG. 9 is a side view of the purifying device, and FIG. 10 is a configuration explanatory view of the purifying device. This purifier has a main body 10 and a ventilation pipe.
14, anchor 41, support bar 42, tow rope 46, and winding device
Contains 44.

The anchor 41 is fixed to the bottom of the water. The base end of the support bar 42 is pivotally supported via a pin 43, and the front end is fixed to the bracket 15 via a connecting plate 44. The connecting plate 44 is provided with a plurality of adjustment holes 44A for changing the inclination angle of the main body 10 with respect to the water surface. The tow rope 46 is wound and unwound together with the cable of the submersible motor 11 by a winding device 45 provided at a predetermined position such as a shore.

During operation of the submersible motor 11, when the tow rope 46 is wound by the winding device 44, the main body 10 is pulled up around the pin 43. When the tow rope 46 is unwound while the submersible motor 11 is at rest, the main body 10 sinks due to its own weight and assumes the posture shown by the broken line in the figure. According to this embodiment, it is more convenient to use in a place where the water depth is relatively shallower than that of the above embodiment. In the above embodiment, the tow rope 46 is used to mechanically move up and down, but the point is that it is a lifting device, and of course a mechanical lifting device such as a cylinder / piston type or a screw nut type can be used. Is.

[0022]

As described above, the purifying apparatus according to the present invention is provided with the submersible motor and the screw, and the upper end opening of the ventilation pipe is always depressed during the suspension of the submersible motor. At least the upper end opening of the ventilation pipe is exposed above the water surface only during operation, and the shaft center of the screw can be suspended with the posture arbitrarily inclined with respect to the water surface. Therefore, when the landscape is emphasized, it is very convenient because the annoying portion cannot be seen.

[Brief description of drawings]

FIG. 1 is a front view of a purification device according to the present invention.

FIG. 2 is a plan view of the purification device according to the present invention.

FIG. 3 is a side view of the purification device according to the present invention.

FIG. 4 is a front view illustrating the operating principle of the purification device according to the present invention.

FIG. 5 is a front view illustrating the operating principle of the purification device according to the present invention.

FIG. 6 is a diagram according to the present invention, which is a vector diagram illustrating an operation.

FIG. 7 is a view according to the second embodiment and is a side view of the purification device.

FIG. 8 is a plan view of the purification device according to the second embodiment.

FIG. 9 is a side view of the purifying device according to the third embodiment.

FIG. 10 is a drawing related to the third embodiment and is a structural explanatory view of a purifying device.

[Explanation of symbols]

 10 Main body 11 Submersible motor 111 Drive shaft 12 Rectifier 13 Screw 14 Vent pipe 15 Bracket 21 Float 22 Weight 23 Tow rope 24 Tow rope 31 Anchor 32 Mooring pole 33 Support bar 41 Anchor 42 Support bar 45 Winder 46 Tow rope

Claims (7)

[Claims] 1. A method of operating a purifying device that is swingably suspended in water, comprising a submersible motor, a rectifying cylinder attached to the submersible motor, a main body including a screw driven by the submersible motor, and a screw. It is equipped with a ventilation pipe that draws air into the rectifying cylinder by using the negative pressure generated by the rotation of the, and a plurality of floats connected to the main body. A method for operating a purifying device, characterized in that the whole body including the float is always immersed in water, and at least the upper end opening of the ventilation pipe is made to project above the water surface when operating the underwater motor. 2. A purifying device suspended swingably in water, comprising an underwater motor and a rectifying cylinder attached to the underwater motor.
It has a main body composed of a screw driven by a submersible motor, a ventilation pipe for sucking air into the rectifying cylinder by utilizing a negative pressure generated by the rotation of the screw, and a plurality of floats connected to the main body, and When the submersible motor is at rest, the entire top end opening of the ventilation pipe and the float are immersed in the water, and the top end opening is exposed above the water surface by the reaction force of the water flow caused by the rotation of the screw only while the submersible motor is operating. Purification device characterized in that 3. The submersible motor includes a hollow drive shaft, the drive shaft is connected to a ventilation pipe bent in an L-shape on the opposite output side, and the output side is provided with a rectifying cylinder through a screw. The purifying device according to claim 2, wherein the purifying device is opened inside. 4. The purifying apparatus according to claim 2, wherein the main body is suspended at a predetermined position through a plurality of tow ropes in the output side and the counter output side of the submersible motor. 5. The purifying apparatus according to claim 2, wherein the main body is provided on a mechanical lifting device that moves up to a predetermined position after the submersible motor is turned on and descends to a predetermined position after the submersible motor is turned off. apparatus. 6. A purifying device suspended swingably in water, comprising a submersible motor, a rectifying cylinder attached to the submersible motor, a main body of a screw driven by the submersible motor, and a rotation of the screw. A ventilation pipe that draws air into the rectifying cylinder by using the generated negative pressure, a plurality of floats connected to the main body, a pair of mooring poles standing vertically on the water bottom, and the tip of the mooring pole and the main body. The purifying device according to claim 2, further comprising a support bar that swingably connects the underwater motor output side end portion. 7. A purifying device swingably installed in water, which is generated by rotation of a submersible motor, a rectifying cylinder attached to the submersible motor, a main body including a screw driven by the submersible motor, and a screw. A ventilation pipe that sucks air into the rectifying cylinder by using negative pressure, an anchor provided on the bottom of the water, a support bar that swingably connects the anchor and the main body, and a tow rope that suspends the main body at a predetermined position, It is equipped with a tow rope take-up device, and the tow rope is taken up during operation of the submersible motor to expose the upper end opening of the ventilation pipe above the water surface. A purifying device characterized in that the whole including it is made to be immersed in water.