JP2007237114A - Liquid purification apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid purification apparatus which can lengthen the life of a bearing part by preventing the damage of the bearing part due to impurities, such as dust, even when they enter. <P>SOLUTION: The liquid purification apparatus comprises an outer cylinder 3 installed with a water intake port 12 and an air intake port 13 at the upper end, and with a communicating chamber 5 communicating with the outside at the lower end, a rotary shaft 2 installed coaxially with the outer cylinder 3 inside it so as to leave a space, rotated and driven at the upper end by a motor 7, and supported at the lower end by the bearing part 6, and a water spray plate 4 installed in the communicating chamber 5 for sending liquid in the communicating chamber 5 to the outside by being rotated by the rotary shaft 2. The rotary shaft 2 is inserted into the bearing part 6 so as to leave a space G3, and magnets 18, 10 repulsing each other are installed in the bearing part 6 and the rotary shaft 2 respectively. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a liquid purification treatment apparatus for purifying a liquid such as water to be treated which is polluted / contaminated with organic matter or the like or is eutrophied and has algae grown. Especially for the purification of ponds, moats, canals, lakes, rivers, bay waters, etc. polluted and polluted by the inflow of industrial wastewater, domestic wastewater, etc., and aquaculture fishing grounds using aquariums, rivers, inland seas, etc. It was generated in the painting process at the factory to purify the water quality of agricultural water such as for hydroponics, to purify the water quality of wastewater from food factories, etc. The present invention relates to a liquid purification treatment apparatus for aggregating and removing substances that cannot be discarded from waste liquid.

  Water purification technology for ponds, moats, canals, lakes, rivers, bay waters, etc., water purification technology for aquaculture fisheries using aquariums, rivers, inland seas, etc., or drinking water (for example, tap water or mineral water) As an example of such a water purification treatment technique, a liquid purification treatment apparatus such as the water purification treatment apparatus described in Patent Literatures 1 to 4 is known.

  This liquid purification treatment apparatus contains, for example, an intake pipe, an outer cylinder, an inner cylinder with a magnet, a water guide plate, a water spray plate with a magnet, a rotating shaft, a submersible motor, and a plurality of support columns. A bearing is disposed at a central point in the top wall of the outer cylinder, and an intake hole is formed in one or more points of the upper peripheral wall of the outer cylinder. Alternatively, each of the plurality of points is provided with a water inlet, and a plurality of vertically-filled grooves are formed on the outer peripheral surface of the inner cylinder with magnet, and each of the grooves is magnetized in the horizontal direction. A large number of permanent magnets are embedded in each, a relatively large-diameter hole is drilled in the center of the water guide plate, and the watering plate with magnet contains a rotating plate and a plurality of permanent magnets. A plurality of filling grooves are formed radially on the upper surface of the rotating plate, and one magnetic pole of each permanent magnet is embedded in each filling groove. Each of the other magnetic poles is protruded upward from each filling groove, and each intake hole of the outer cylinder is connected to the end portion of each intake pipe in a secret and watertight manner. Connected to the lower end of the outer cylinder, the outer periphery of the water guide plate is supported and fixed above the submersible motor by a plurality of columns, and the upper end of the rotating shaft is rotatably supported by a bearing, Its lower end is connected to the rotating shaft of the submersible motor, and the inner cylinder is pivotally supported on the central axis of the outer cylinder by the rotating shaft, between the outer peripheral surface of the inner cylinder and the inner peripheral surface of the outer cylinder. In this method, the air flowing from each intake pipe is mixed with the water to be treated flowing from each water inlet to generate countless fine bubbles, and the oxygen component in each bubble is made as much as possible in the water to be treated. A first gap for melting is formed, and the watering plate with magnet is parallel to the water guide plate, All the bubbles in the water to be treated that flowed in from the first gap are further divided and refined between the upper surface of the sprinkling plate with magnets and the lower surface of the water guide plate. A second gap is formed to dissolve the oxygen component in the bubbles as much as possible in the water to be treated.

Japanese Patent No. 32227567 JP 2002-346578 A JP 2003-53373 A JP 2006-35197 A

By the way, since the conventional liquid purification treatment apparatus as described above is installed in water such as a pond, a moat, a canal, a lake and the like whose water quality is relatively poor, from the water inlet formed in the outer cylinder of the liquid purification treatment apparatus Water in which impurities such as dust and dust are mixed is absorbed into the outer cylinder. On the other hand, a bearing that rotatably supports the rotating shaft is provided at the center point of the top wall of the outer cylinder.
Therefore, it is inevitable that impurities such as dust and dirt mixed in the absorbed water enter the bearing as the liquid purification processing apparatus is used. Since the rotating shaft rotates at a very high speed, the bearing is damaged by the impurities and its life is extremely shortened. Therefore, repeated replacement of the bearing is unavoidable.

  The present invention has been made on the basis of the above circumstances, and even if impurities such as dust and dirt enter, a liquid purification processing apparatus capable of preventing damage to the bearing portion due to this and extending the life of the bearing portion. The purpose is to provide.

In order to achieve the above object, the liquid purification processing apparatus according to claim 1, an outer cylinder provided with a communication chamber that communicates with the liquid suction port and the suction port at one end and communicates with the outside at the other end, Provided inside the outer cylinder coaxially with the outer cylinder and with a gap, one end of which is rotationally driven by a prime mover, and the other end is supported by a bearing portion, and is provided in the communication chamber. And a sending means for sending the liquid in the communication chamber to the outside by rotating by the rotating shaft,
By sending out the liquid in the communication chamber to the outside by the delivery means, and the negative pressure is generated in the communication chamber and the outer cylinder, the liquid and air from the suction port and the suction port into the outer cylinder. And the liquid is mixed with air when passing through the gap between the outer cylinder and the rotating shaft to generate countless minute bubbles, and the liquid in which the bubbles are mixed is supplied to the delivery means. In the liquid purification processing apparatus to be sent to the outside by
The rotating shaft is inserted into the bearing portion with a gap, and permanent magnets that repel each other are provided coaxially on the bearing portion and the rotating shaft, respectively.

  According to a second aspect of the present invention, there is provided the liquid purification apparatus according to the first aspect, wherein a gap between the bearing portion and the rotating shaft communicates with the outer cylinder or the communication chamber. It is characterized by that.

  According to the liquid purification treatment apparatus of the first aspect, the rotation shaft is inserted with a gap into the bearing portion that supports the rotation shaft, and magnets that repel each other are provided on the bearing portion and the rotation shaft, respectively. Therefore, the bearing portion and the rotating shaft are not in contact with each other by these magnets. Therefore, even if the rotating shaft rotates at a high speed, the rotating shaft is not in contact with the bearing portion. Therefore, the bearing portion is damaged due to impurities such as dust and dust mixed in the water flowing into the outer cylinder, and the service life is shortened. Can be prevented from becoming shorter. As a result, the cleaning operation is not interrupted and the bearings are not frequently replaced as in the conventional case, and the working efficiency can be improved.

  Further, since the magnets repelling each other are provided coaxially, the rotation shaft is located at the axis and rotates, so that the rotation shaft can be prevented from shaking. For this reason, since a rotating shaft can be lengthened, the gap | interval of this rotating shaft and an outer cylinder can be lengthened, Therefore Therefore, a bubble can be refined | miniaturized more when this gap | interval passage. That is, the ability of the liquid purification processing apparatus can be improved by a simple configuration in which magnets repelling each other are provided coaxially and the lengths of the rotating shaft and the outer cylinder are increased. On the other hand, when using a conventional rolling bearing, if the rotating shaft becomes longer, the rotating shaft becomes more blurred and the life of the bearing is further shortened. Therefore, the length of the rotating shaft cannot be increased. For this reason, it has been impossible to increase the length of the gap for miniaturizing the bubbles.

  According to the liquid purification treatment apparatus of the second aspect, since the gap between the rotary shaft and the bearing portion and the communication chamber or the outer cylinder communicate with each other, the communication is performed by the sending means that rotates by the rotation of the rotary shaft. As the liquid in the room is sent to the outside, the liquid in the communication chamber or the outer cylinder is also sent to the outside, and accordingly, the water in the gap communicating with the communication chamber or the outer cylinder is also sent to the outside. Is done. Thus, since there is no liquid in the gap between the rotating shaft and the bearing portion during operation of the liquid purification processing apparatus, the resistance of the liquid acting on the rotating shaft can be reduced accordingly. Therefore, it is possible to reduce a load acting on a driving source such as a motor that rotates the rotating shaft.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a longitudinal sectional view of a liquid purification processing apparatus according to an embodiment of the present invention, and FIG. 2 is a sectional view taken along line AA of FIG.
The liquid purification treatment apparatus (water purification treatment apparatus) 1 includes a rotating shaft 2, an outer cylinder 3, a water spray plate (feeding means) 4, a communication chamber 5, a bearing portion 6, and a motor (prime mover) 7. I have.

The rotary shaft 2 includes a rotary shaft main body 2a formed in a vertically long cylindrical shape, and a cylindrical portion 2b fitted on the outer side of the rotary shaft main body 2a. End) is connected to a drive shaft (not shown) of the motor 7 as a drive source.
The cylindrical portion 2b has a cylindrical shape whose inner diameter is set to be substantially equal to the outer diameter of the rotary shaft main body 2a. The rotary shaft main body 2a and the cylindrical portion 2b are connected by, for example, a key or a fixture (not shown). Yes. Thereby, the rotating shaft main body 2a rotates when the drive shaft of the motor 7 rotates, and the cylindrical portion 2b rotates together with the rotating shaft main body 2a.

  A plurality (four in this example) of permanent magnets 9 are provided on the outer peripheral surface of the cylindrical portion 2b at equal intervals in the outer peripheral direction of the cylindrical portion 2b. The permanent magnet 9 has a rectangular column shape that is long in the vertical direction, and the surface of the permanent magnet 9 is substantially flush with the outer peripheral surface of the cylindrical portion 2b in the vertically long concave groove formed on the outer peripheral surface of the cylindrical portion 2b. It is embedded and fixed with an adhesive or the like. The permanent magnet 9 is magnetized in the horizontal direction.

  A short cylindrical magnet mounting cylinder 2c is fixed to the lower end (tip) of the rotating shaft main body 2a by a fixture or the like, and the magnet mounting cylinder 2c is magnetized in the horizontal direction. A plurality (four in this example) of permanent magnets 10 are provided at equal intervals in the circumferential direction. The permanent magnet 10 has a rectangular column shape shorter than the permanent magnet 9, and the surface of the permanent magnet 10 is the lower end of the magnet mounting cylinder 2c in the vertically long concave groove formed on the outer peripheral surface of the lower end of the magnet mounting cylinder 2c. It is embedded and fixed with an adhesive or the like so as to be substantially flush with the outer peripheral surface. In addition, you may make it form the cylinder part 2b and the magnet mounting cylinder 2c integrally.

  Furthermore, a water spray plate (feeding means) 4 is provided coaxially with the rotary shaft main body 2a at the lower end (tip) of the rotary shaft main body 2a. . The water spray plate 4 is inserted outside the rotary shaft main body 2a of the rotary shaft 2, is sandwiched between the cylindrical portion 2b and the magnet mounting cylinder 2c, and is fixed to the rotary shaft 2, thereby rotating together with the rotary shaft 2. It is supposed to be. The water spray plate 4 is formed in a disc shape, and a plurality (four in this example) of permanent magnets 11 magnetized in the vertical direction are fixed radially at equal intervals in the circumferential direction. These permanent magnets 11 have a quadrangular prism shape and protrude from the upper surface of the water spray plate 4, thereby playing the role of blades in the centrifugal pump. The amount of protrusion of the permanent magnet 11 from the upper surface of the water spray plate 4 can be set to about 3 to 5 mm, for example, but is not limited to this, the strength of the permanent magnet, the load applied to the motor, the performance as a liquid delivery means, What is necessary is just to set an appropriate dimension suitably according to the other design circumstances.

  The outer cylinder 3 is formed in a cylindrical shape, and is provided coaxially with the rotating shaft 2 with a gap G1 outside the cylindrical portion 2b of the rotating shaft 2. The gap G1 can be set to about 3 to 10 mm, for example. However, the gap G1 is not limited to this, and may be appropriately set according to the strength of the permanent magnet and other design circumstances. A lid 3 a is provided at the upper end of the outer cylinder 3. A motor 7 is held on the lid 3 a by a holding member 8.

  In addition, a plurality of water inlets (liquid inlets) 12 are provided at predetermined intervals in the circumferential direction on the outer wall of the upper end portion of the outer cylinder 3, and target treated water is supplied from the water inlet 12 to the outer cylinder 3 and the rotary shaft 2. It is made to flow into the gap G1 between them. In order to prevent inhalation of dust and bubbles floating on the surface of the water, a pipe is connected to the water inlet 12 and the tip of the pipe is positioned below the water surface by a certain amount (for example, about 30 to 50 cm) to absorb water. You may make it do. Further, a filter such as a wire mesh may be provided at the water inlet 12, and relatively large dust may be supplemented by this filter to prevent the dust from flowing into the outer cylinder 3.

  Further, an intake port 13 is provided on the outer wall of the upper end portion of the outer cylinder 3, and an intake pipe 13a is connected to the intake port 13 in a watertight and airtight manner, and air flows into the gap G1 from the intake pipe 13a. It is supposed to let you. In addition, the intake pipe 13a has flexibility, and in order to prevent the view of the target water area from being damaged, the air intake pipe 13a is laid under the surface of the water area during operation, and the tip thereof is located near the water area. Will be placed on the ground.

  Further, four permanent magnets 14 are provided at equal intervals in the inner and outer circumferential directions of the outer cylinder 3 on the inner circumferential surface of the outer cylinder 3. The permanent magnet 14 has a quadrangular prism shape that is long in the vertical direction, and the surface of the permanent magnet 14 is substantially the same as the inner peripheral surface of the outer cylinder 3 in a vertically long concave groove formed on the inner peripheral surface of the outer cylinder 3. It is embedded so as to be flush with each other and fixed with an adhesive or the like. The permanent magnet 14 is magnetized in the horizontal direction.

  Furthermore, a communication chamber 5 that communicates with the internal space of the outer cylinder 3 and communicates with the outside is provided at the lower end portion of the outer cylinder 3. That is, a flat cylindrical casing portion 30 projecting radially outward from the outer cylinder 3 is provided coaxially with the outer cylinder 3 at the lower end portion of the outer cylinder 3, and the interior of the casing portion 30 is a communication chamber. It is set to 5. The casing portion 30 is fixed to the lower end of the outer cylinder 3 and has an annular plate-like casing piece 30a projecting outward in the radial direction from the outer cylinder 3, and a flat, provided piece disposed below the casing piece 30a. The bottom cylindrical casing piece 30b and a plurality of connecting pillars 30c that connect these outer peripheral portions are configured. As a result, the communication chamber 5 has an opening at the center of the upper end of the casing portion 30 (of the casing piece 30a). It communicates with the gap G1 inside the outer cylinder 3 through the opening in the center part, and externally through the opening in the outer peripheral part of the casing part 30 (the gap between the outer peripheral part of the casing piece 30a and the outer peripheral part of the casing piece 30a). Communicated with. A water spray plate 4 is provided in the communication chamber 5 (inside the casing portion 30). The upper surface of the water spray plate 4 and the upper end of the lower casing piece 30b are set at substantially the same position. The water spray plate 4 with the permanent magnet 11 and the casing part 30 constitute a centrifugal pump.

  A plurality (four in this example) of permanent magnets 15 magnetized in the vertical direction are radially fixed at equal intervals in the circumferential direction on the lower surface of the casing piece 30a on the upper side of the casing portion 30. The permanent magnet 15 has a quadrangular prism shape, and is embedded in a concave groove formed on the lower surface of the casing piece 30a so that the surface of the permanent magnet 15 is substantially flush with the lower surface of the casing piece 30a. It is fixed with agents. The gap G2 between the casing piece 30a and the upper end of the permanent magnet 11 of the water spray plate 4 can be set to about 3 to 10 mm, for example, but is not limited thereto, the strength of the permanent magnet, and other design circumstances The size may be set appropriately according to the conditions.

  The bearing portion 6 is integrally formed with the casing piece 30 b on the lower side of the casing portion 30. That is, the bearing portion 6 is formed in a bottomed cylindrical shape from a disc-shaped bottom wall 6a and a cylindrical peripheral wall 6b rising from the outer peripheral edge of the bottom wall 6a, and the upper end of the peripheral wall 6b is a casing piece. It is the structure joined to the peripheral part of the opening part of the lower wall center part of 30b. The bearing portion 6 is formed coaxially with the rotary shaft 2.

In the bearing part 6, the lower end part (tip part) of the rotating shaft 2 is inserted with a gap G3. The gap G2 extends continuously from the side of the lower end of the rotating shaft 2 to the lower side. The gap G3 can be set to about 3 to 10 mm, for example. However, the gap G3 is not limited to this, and may be set to an appropriate dimension according to the strength of the permanent magnet and other design circumstances. Furthermore, on the inner peripheral surface of the peripheral wall 6b, a plurality of (four in this example) permanent magnets 18 which are vertically magnetized in the horizontal direction are provided at equal intervals in the circumferential direction. Therefore, these permanent magnets 18 and the permanent magnets are arranged coaxially. Further, the permanent magnet 18 and the permanent magnet 10 have the same magnetic poles on the opposite side, so that the permanent magnets 18 and 10 repel each other. The number of permanent magnets 18 is not particularly limited, but is preferably at least 4 or more. Further, instead of the plurality of permanent magnets 10 and 18, cylindrical permanent magnets may be used. Further, these permanent magnets only need to repel each other, and any magnetization direction and arrangement may be used.
The gap G3 communicates with the gap G2 through a gap G4 provided between the water spray plate 4 and the casing piece 30b on the lower side of the casing portion 30. The gap G4 can be set to about 3 to 10 mm, for example. However, the gap G4 is not limited to this and may be set to an appropriate dimension according to the design circumstances.

  Next, the usage method and overall operation of the liquid purification treatment apparatus 1 configured as described above will be described. First, in the liquid purification treatment apparatus 1, a portion below the motor 7, that is, a portion below the lid 3a of the outer cylinder 3 is submerged in the treatment target water area.

  The gaps G1, G2, G3, and G4 of the liquid purification processing apparatus 1 are all filled with the water to be treated that has entered from the outer peripheral side of the gap G2. An electric wire for transmitting power from the power source to the motor 7 is sunk and laid in the target water area so as not to damage the target water area landscape. Next, when the motor 7 is started, power is transmitted by the rotating shaft 2 and the rotating shaft 2 and the water spray plate 4 rotate simultaneously. The rotational speed of the rotating shaft 2 and the water spray plate 4, that is, the rotational speed of the drive shaft of the motor 7 is, for example, about 4000 revolutions / minute or more.

  When the water spray plate 4 rotates, the water to be treated in the gap G2 is sent out in the horizontal direction, the internal water pressure decreases, and becomes atmospheric pressure or lower (negative pressure). Therefore, since the negative pressure is also generated in the gap G1 and the water surface descends, air flows from the intake pipe 13a, and water to be treated flows from the water inlet 12. The water to be treated that has flowed into the gap G1 is dragged by the high-speed rotation of the rotary shaft 2 and rotates at a high speed. As a result, the descending water surface in the outer cylinder 3 undulates and foams at the same time, and countless small vortices as secondary flows are generated below the water surface. The vortex generation mechanism at this time is considered to be substantially the same as the Taylor vortex generation mechanism. (For details on the Taylor vortex, see “Mechanical Engineering Handbook (new edition 2nd edition)” issued on May 1988, Japan Society of Mechanical Engineers, page A5-128). Therefore, the inflowing air is efficiently mixed with the inflowing water to be treated, and becomes innumerable minute bubbles. Moreover, the oxygen component in each microbubble will melt | dissolve efficiently in the said process target water lacking oxygen.

  Further, since the permanent magnet 9 is provided on the rotating shaft 2 and the permanent magnet 14 is provided on the outer cylinder 3, a horizontal (strictly speaking, radial direction) magnetic field is generated at each point in the gap G1. Therefore, finer bubbles are treated in the gap G1 by the interaction between the magnetic field and water molecules, the interaction between the induced current and water molecules, the interaction between the magnetic field and oxygen molecules, and their synergistic effect. It can be generated in water, and more oxygen components in the bubbles can be dissolved in the water to be treated.

  The water to be treated in the gap G1 descends while increasing the number of microbubbles and the amount of dissolved oxygen, and flows into the gap G2 between the casing piece 30 and the casing piece 30a. In this gap G2, all the microbubbles in the treated water that has flowed in are divided and subdivided under the synergistic action of the pumping action of the water spray plate 4 and the electromagnetic action of the permanent magnets 11 and 15, and the fine bubbles And oxygen components in the microbubbles or microbubbles are further dissolved in the water to be treated. The water to be treated containing fine bubbles and dissolved oxygen is sent out in the horizontal direction by the pumping action of the water spray plate 4 and diffused into the water area to be treated.

  The fine bubbles and dissolved oxygen diffused in the water area to be treated do not float in the water area to be treated in a short time and stay in the water area for a very long time. Since it diffuses throughout the body of water, it effectively oxidizes various organic substances. Oxidized organic matter aggregates and floats on the water surface. By collecting and removing this periodically, a sustainable purification treatment for the water to be treated is achieved.

  In such a liquid purification processing apparatus 1, the rotating shaft 2 is inserted into the bearing portion 6 with a gap G3, and the bearing portion 6 and the rotating shaft 2 are provided with magnets 10 and 18 that repel each other. Therefore, the bearings 6 and the rotating shaft 2 are not brought into contact by the magnets 10 and 18. Therefore, even if the rotating shaft 2 rotates at a high speed, the rotating shaft 2 is in a non-contact state with the bearing portion 6, and therefore the bearing portion 6 is caused by impurities such as dust and dirt mixed in the water flowing into the outer cylinder 3. Can be prevented from being damaged and shortening the service life. Therefore, it is not necessary to frequently replace the bearings during the purification work as in the prior art, so that work efficiency can be improved.

  In addition, since the magnets 10 and 18 that repel each other are provided coaxially, the rotating shaft 2 rotates while being positioned at the axis, so that the rotating shaft 2 can be prevented from shaking. For this reason, since the rotating shaft 2 can be lengthened, the gap G1 between the rotating shaft 2 and the outer cylinder 3 can be lengthened, so that bubbles can be made finer when passing through the gap G1. Thus, the ability of the liquid purification processing apparatus 1 can be improved by a simple configuration in which the magnets 10 and 18 that repel each other are provided coaxially and the lengths of the rotating shaft 2 and the outer cylinder 3 are increased. . On the other hand, when the conventional rolling bearing is used, if the rotating shaft 2 becomes longer, the rotation of the rotating shaft 2 becomes larger and the life of the bearing is further shortened. Therefore, the length of the gap G1 could not be increased.

  Further, since the gap G2 between the water spray plate 4 and the casing piece 30a of the casing part 30 and the gap G3 between the rotary shaft 2 and the bearing part 6 communicate with each other via the gap G4, the rotation The water in the gap G3 and the gap G4 is also sent to the outside as the water in the gap G2 is sent to the outside by the centrifugal pump action by the cooperation of the sprinkler plate 4 and the casing piece 30a rotating by the rotation of the shaft 2. The Accordingly, since there is no water in the gap G3 during the operation of the liquid purification processing apparatus 1, the resistance of the water acting on the rotary shaft 2 can be reduced accordingly. Therefore, the load acting on the motor 7 that rotates the rotating shaft 2 can be reduced.

  In the present embodiment, the permanent magnets 9, 14, 11, and 15 are provided on the rotating shaft 2, the outer cylinder 3, the watering plate 4, and the casing piece 30a, respectively. The permanent magnets 9 and 14 may be provided on the shaft 2 and the outer cylinder 3, or the permanent magnets 11 and 15 may be provided on the watering plate 4 and the casing piece 30a. Further, one of the permanent magnets 9 and 14 or one of the permanent magnets 11 and 15 may be provided with a ferromagnetic member such as iron instead of the permanent magnet.

  In the present embodiment, the permanent magnets 9, 14, 11, and 15 are provided. However, these permanent magnets 9, 14, 11, and 15 may not be provided at all. Compared with the case where the permanent magnets 9, 14, 11, and 15 are provided, the ability to refine the bubbles is inferior. However, the rotation shaft 2, the outer cylinder 3, or the watering plate 4 with blades, and the casing piece 30a are also refined. It is because the bubble which was made can be sent out. Furthermore, only fine gaps may be generated mainly by the gap G1 between the rotating shaft 2 and the outer cylinder 3, and the delivery means may mainly perform delivery of the liquid in the communication chamber to the outside. . As described above, it is preferable that the diameter of the bubbles when being sent to the outside by the sending means is about 10 microns or less, but of course, the liquid purification treatment apparatus of the present invention can be used even if it is larger than this. The delivery means may be of other structure as long as the liquid in the communication chamber can be delivered to the outside by rotating the rotation shaft.

  Further, in the present embodiment, the motor 7 is provided at the upper end portion of the rotating shaft 2 and the bearing portion 6 is provided at the lower end portion of the rotating shaft, but this is also described in the technical documents 1 to 3. As described above, the motor may be provided at the lower end portion of the rotating shaft, and the bearing portion may be provided at the upper portion of the rotating shaft. In this case, the bearing portion can communicate with the outer cylinder instead of the communication chamber. In addition, since the motor is located in water, it is necessary to use an underwater motor. Further, the rotary shaft 2 is connected to the drive shaft of the motor 7 and directly driven by the prime mover, and the prime mover such as the motor 7 is arranged in another place so that the flexible shaft is flexible between the prime mover and the rotary shaft 2. The rotary shaft 2 may be driven to rotate by interposing a drive transmission shaft. Furthermore, a transmission or the like may be interposed between the prime mover and the rotating shaft 2.

  Further, in the present embodiment, air is sucked from the air inlet 13, but instead of or in addition to this air, active air, ozone, or the like may be sucked. Gas may be used.

It is a longitudinal cross-sectional view of the liquid purification processing apparatus which concerns on embodiment of this invention. It is the sectional view on the AA line in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Liquid purification processing apparatus 2 Rotating shaft 3 Outer cylinder 4 Sprinkling plate (delivery means)
5 Communication room 6 Bearing 7 Motor (prime motor)
10, 18 Permanent magnet 12 Water inlet (liquid inlet)
13 Inlet G1 Gap G3 Gap

Claims (2)

An outer cylinder provided with a liquid suction port and an intake port at one end and a communication chamber communicating with the outside at the other end, and provided coaxially and with a gap inside the outer cylinder. The rotary shaft is rotationally driven by a prime mover and the other end is supported by a bearing portion, and is provided in the communication chamber, and the liquid in the communication chamber is sent to the outside by being rotated by the rotation shaft. Means and
By sending out the liquid in the communication chamber to the outside by the delivery means, and the negative pressure is generated in the communication chamber and the outer cylinder, the liquid and air from the suction port and the suction port into the outer cylinder. And the liquid is mixed with air when passing through the gap between the outer cylinder and the rotating shaft to generate countless minute bubbles, and the liquid in which the bubbles are mixed is supplied to the delivery means. In the liquid purification processing apparatus to be sent to the outside by
The liquid purification processing apparatus, wherein the rotary shaft is inserted into the bearing portion with a gap, and permanent magnets that repel each other are provided coaxially on the bearing portion and the rotary shaft.   The liquid purification processing apparatus according to claim 1, wherein a gap between the bearing portion and the rotating shaft communicates with the outer cylinder or the communication chamber.

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