JP5977108B2 - Water purification device - Google Patents

Description

  The present invention suppresses sludge accumulation and red sea bream by raising the bottom layer water in pooled water such as lakes in a vortex, stirring the stagnation of the water, supplying oxygen, and activating microorganisms. The present invention relates to a stored water purification apparatus that promotes activation of water quality.

  An apparatus for agitating water by disposing an impeller on the bottom of a lake and rotating it with a motor is disclosed in Patent Document 1, for example.

JP 2007-253083 A

The main cause of water pollution in lakes and marshes is that phytoplankton grows abnormally due to the eutrophication phenomenon that flows from rivers, that is, the inflow of nitrogen, phosphorus, and the like.
Factors that cause phytoplankton growth include water stagnation and stagnation, nitrogen and phosphorus flowing from rivers and increasing due to elution from bottom mud, and photosynthesis being activated by sunlight , Phytoplankton spores are present, and if the surface of the water is covered due to its large growth, the growth of other aquatic plants will be damaged by shading, and fish and aquatic organisms will be lost due to lack of dissolved oxygen. To die. Moreover, when the amount of organic substances in the bottom layer becomes excessive and anaerobic, sludge is generated and a bad odor is emitted.
These solutions include increasing the amount of dissolved oxygen in the water to suppress the elution of phosphorus, H ₂ S, etc. from the bottom mud, to prevent the generation of H ₂ S odor, to suppress the growth of algae, By circulating, algae are transferred to the bottom layer where light does not reach, thereby suppressing growth.
In order to circulate these stored water, a motor is usually used also in the stirring and aeration methods.
In large lakes and swamps, the cost of power transmission facilities is high, and the rotor is rotated by a motor in order to circulate water.
The device described in Patent Document 1 is a device in which an impeller provided at the lower end of a vertical shaft that is rotated by a motor is rotated at the bottom of the water to diffuse the water in the horizontal direction. It does not rise and requires external power.
An object of the present invention is to provide a stored water purification device that raises bottom layer water such as lakes and marshes as a vortex by natural energy without using any electric power, and efficiently stirs and circulates the stored water. .

  The specific contents of the present invention are as follows.

(1) A vertical wind turbine is arranged on the upper surface of the suspension base, and the rotor shaft is erected through a bearing provided at the lower ends of a plurality of suspension rods suspended from the suspension base. The vertical main shaft of the vertical axis wind turbine and the rotor axis of the vertical axis rotor are connected and integrated with a transmission shaft, and the vertical axis rotor has the blade tip of the horizontal lift type blade as an inclined part inclined upward, and an inclined part. When the vertical axis rotor is rotated by the rotational force of the wind turbine, the bottom layer water in the stored water is pushed at the trailing edge of the blade inclined portion. accumulated water purification device that is a so that to increase the swirl-like Te.

  (2) The suspended water purification apparatus according to (1), wherein the suspension base is a floating body in which a plurality of hollow arms are extended in a radial direction from a central portion in plan view.

  (3) The stored water purification apparatus according to (1) or (2), wherein the transmission shaft is flexible.

(4) Each lift type blade in the vertical axis rotor has a gradually widening chord length from the blade root to the blade tip, an inclined portion with the tip inclined upward from the maximum chord length portion, and the trailing edge of the blade The stored water purification apparatus according to any one of (1) to (3), wherein the apparatus is inclined higher than a front edge from a root to an inclined portion .

(5) The stored water purifier according to any one of (1) to (4), wherein each of the hanging rods is capable of adding a short one .

(6) The stored water purification apparatus according to any one of (1) to (5), wherein a weight is attached to a lower portion of each hanging rod.

  (7) The stored water purification apparatus according to any one of (1) to (6), wherein a generator and an illuminating lamp are disposed so as to generate power with the rotational force of the windmill.

  According to the present invention, the following effects can be obtained.

In the stored water purification apparatus according to (1), the vertical axis or the horizontal axis wind turbine is disposed on the upper surface of the suspension base, and the vertical axis rotor of the water bottom is rotated by the rotational force of the wind force. Therefore, it is possible to purify the polluted water so as to restore nature with natural energy, without requiring construction work and costs.
In the rotor blade, the tip of the blade is inclined upward, and when it rotates, the water flow is swept up in a conical shape, so that the sediment at the bottom is sucked from the surroundings by the rising water flow, and conically upwards It rises and diffuses as ripples to the surroundings on the water surface and circulates containing oxygen in the air, so that the water quality can be purified easily and in a short period of time .
The lift-type blade of the vertical axis rotor, which is suspended from the suspension base and provided in the lower part of the suspension rod, creates an upward vortex, so that cold and heavy bottom water easily reaches the water surface and diffuses in the centrifugal direction. By repeating this process, the accumulated water is agitated in a wide range and comes into contact with the air uniformly, so that the dissolved oxygen is sufficiently supplied. For this reason, microorganisms act, protein etc. which are contained in water are decomposed | disassembled, generation | occurrence | production of sludge is suppressed, and accumulated water is purified.
Moreover, the phytoplankton spore moves to the bottom of the water by stirring, is less susceptible to sunlight, and is inhibited from growing.

  In the stored water purification apparatus according to (2), the suspension base is a floating body in which a plurality of hollow arms are extended in the radial direction from the center in a plan view. Can diffuse in the direction. In addition, a plurality of water can be levitated at regular intervals on a large surface of a lake or the like to efficiently purify muddy water in the lake.

  In the stored water purification apparatus according to (3), since the transmission shaft that connects the wind turbine and the vertical shaft rotor in water is flexible, troubles such as rotation stoppage due to twisting or bending of the transmission shaft are prevented. The

  In the stored water purification apparatus according to (4), each lift type blade in the longitudinal axis rotor has a leading edge that is horizontal and a trailing edge that is gradually inclined upward from the blade root to the tip. The water flow pushed up from the edge gathers in a conical shape toward the center and rises as a strong vortex.

In the stored water purification apparatus according to the above (5), since each suspension can be added with a short one, it is possible to adjust the suspension according to the water depth even in places with different water depths such as swamps, lakes, and reservoirs. The length of can be adjusted .

  In the stored water purification apparatus according to the above (6), since the weight is attached to the lower part of the suspension rod, the suspension base is not easily shaken by waves, and is excellent in resilience even if it is shaken.

  In the stored water purification apparatus according to (7), since the generator is disposed so as to generate electric power with the rotational force of the main shaft of the windmill, it is possible to obtain power from an illumination lamp such as a warning lamp or a kidnapping lamp.

It is a vertical front view of Example 1 of the stored water purification apparatus of this invention. It is also a plan view. It is a bottom view similarly. It is a front view of the lift type blade of a windmill. FIG. 5 is a plan view of FIG. 4. It is a VI-VI arrow figure in FIG. It is a top view of the lift type | mold blade in a vertical axis | shaft rotor. It is a front view of a lift type blade. It is the IX-IX line enlarged vertical sectional view in FIG. It is a vertical side view of Example 2 of the stored water purification apparatus of this invention.

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

  As shown in FIG. 1, a stored water purification apparatus 1 according to the present invention is a vertical base shaft 4 </ b> A in which a vertical base shaft 4 </ b> A is supported via a vertical bearing 3 on a top surface of a suspension base 2 made of a disk-shaped hollow floating body. A shaft windmill 4 and a longitudinal rotor 8 in which a vertical rotor shaft 8A is supported by vertical bearings 7 on lower ends of a plurality of suspension rods 6 suspended from the suspension base 2 are used as main members. It is configured.

  The suspension base 2 is a hollow floating body in which an upper plate 2B is stretched over the hollow ring 2A and a lower plate 2C is stretched under the hollow ring 2A. An anchor 2F is fixed to a retaining ring 2D projecting from the upper surface of the hollow ring 2A via a mooring line 2E, and the anchor 2F is inserted into and fixed to the bottom of the water to prevent the suspension base 2 from flowing. . A downward conical rectifying plate 2G is mounted on the lower surface of the suspension base 2.

A vertical main shaft 4 </ b> A of the vertical wind turbine 4 is supported via a vertical bearing 3 at the center of the upper surface of the upper plate 2 </ b> B of the suspension base 2. A plurality of horizontal support arms 4C are fixed to a hub 4B fixed to the upper end portion of the vertical main shaft 4A, and a vertical portion is provided with an inclined portion 5A inclined at the upper and lower end portions in the direction of the vertical main shaft 4A. The lift type blade 5 is mounted.
The rotation radius of the vertical axis windmill 4 is set to be smaller than the radius of the suspension base 2 so that the entire apparatus does not roll over even if strong wind hits the vertical axis windmill 4 and the suspension base 2 shakes.

  A plurality of, for example, four hanging rods 6 are suspended from the outside of the bearing 3 in the suspended base 2. The length of the hanging rod 6 is selected according to the water depth of the lake or the like where the hanging base 2 is disposed. As shown in FIG. 1, a short hanging rod 6 is connected via a joint 6A, It is preferable to adjust the thickness.

  A weight 6 </ b> B is attached to the lower end of each hanging rod 6. Even if the suspension base 2 is shaken by waves, the weight 6B restores the balance and prevents the vertical wind turbine 4 from being overturned.

  A horizontal support arm 7A is provided at the lower end of the suspension rod 6 so as to be in the center of the suspension base 2, and a vertical rotor shaft 8A in the longitudinal rotor 8 is supported by the bearing 7 at the center of the support arm 7A. Has been.

In the vertical rotor 8, a plurality of lift-type blades 9 each having a top surface 9D having a reverse taper shape in plan view are arranged horizontally at regular intervals on the peripheral surface of the hub 8B.
As shown in FIG. 8, the trailing edge 9C of the lift-type blade 9 is gradually inclined upward from the blade root to the tip, and an inclined portion 9A that is inclined upward rapidly from the maximum chord length portion 9E. Has been.

  Further, the leading edge 9B is formed as an inclined portion 9A that gradually and gradually inclines downward from the blade root toward the maximum chord length portion 9E, and that greatly tilts upward from the maximum chord length portion 9E. Accordingly, the upper surface 9D is an inclined surface from the rear edge 9C to the front edge 9B.

  As shown in FIG. 9, the lower surface of the vertical axis rotor 8 has a leading edge 9B that is horizontal up to the maximum chord length portion 9E, and a trailing edge 9C that is gradually inclined upward from the blade root to the maximum chord length portion 9E. ing.

The vertical main shaft 4 </ b> A of the vertical axis wind turbine 4 and the rotor shaft 8 </ b> A of the vertical axis rotor 8 are connected by a flexible transmission shaft 10.
When the transmission shaft is hard like an iron pipe, it becomes difficult to rotate when twisting or bending occurs. However, with the flexible transmission shaft 10, the fear is eliminated.
The rotation radius of the vertical axis rotor 8 is smaller than the rotation radius of the vertical axis wind turbine 4.

  As shown in FIGS. 4 to 6, a plurality of horizontal support arms 4C are attached to a hub 4B fixed to the longitudinal main shaft 4A, and a vertical lift type blade 5 is attached to the tip thereof. The lift type blade 5 is gradually thinned from the thick front edge 5B to the rear edge 5C, and the upper and lower end portions are inclined portions 5A inclined toward the vertical main shaft 4A.

  The side surface shape of the lift type blade 5 is substantially square, and by making the chord length large, the wing length is made small, so that it can rotate stably even in strong winds in lakes and the like. The lift type blade 5 is used in the range of 1 to 6, but the length of the chord is large, so that when it is 2 pieces, it can rotate stably without interference of the air flow during rotation. it can.

  In FIG. 5, when wind is received from the rear direction of the trailing edge 5C, the lift-type blade 5 is pushed and rotates in the direction of the leading edge 5B. When receiving wind from the front direction of the leading edge 5B, the lift type blade 5 causes the wind speed passing through the outer surface 5E to be faster than the inner surface 5D, causing a difference in atmospheric pressure. The mold blade 5 is extruded from the rear edge 5C direction to the front edge 5B direction.

  The airflow that diffuses against the inner surface 5D of the lift type blade 5 hits the inclined portion 5A and flows in the direction indicated by the arrow P in FIG. 5, and the lift type blade 5 is pushed in the direction of the leading edge 5B by the reaction. Rotate.

The stored water purification apparatus 1 configured as described above is used, for example, floated on a lake. By introducing the plurality of anchors 2F as far as possible, the suspension base 2 is prevented from flowing.
For example, the length of the hanging rod 6 is set so that the vertical rotor 8 has a height of about 1 m from the bottom of the lake.

  If wind blows in this state, the vertical wind turbine 4 rotates, and the rotational force is transmitted to the vertical rotor 8 by the transmission shaft 10. When the rotation radius of the vertical axis wind turbine 4 is larger than that of the vertical axis rotor 8, the wind force that strikes the lift-type blade 5 generates a strong rotational torque based on the principle of leverage.

  Therefore, despite the fact that the mass of water is larger than that of air, the vertical axis rotor 8 in the water easily rotates at a high speed, raises the bottom layer water as a vortex, diffuses horizontally on the water surface, The whole will be stirred. When the diameter of the vertical axis rotor 8 is large, it can be easily rotated at a low speed by using the speed reducing means.

  7 to 9, when the vertical rotor 8 rotates, the water sprinkled by the leading edge 9B of the lift-type blade 9 slides on the upper surface 9D and is pushed up by the trailing edge 9C, but the trailing edge 9C is horizontal. However, since it is inclined upward from the blade root toward the tip, the water flow is pushed up in the direction indicated by the arrow X in FIG.

Further, as the vertical axis rotor 8 rotates, the water pushed up in the inclined portion 9A is pushed up in the direction indicated by the arrow Y in FIG. 8, which is further inclined in the axial direction than the direction indicated by the arrow X. Raised.
In this manner, the vortex flow pushed up in the axial direction hits the rectifying plate 2G in FIG. 1, and ripples are generated in the centrifugal direction indicated by the Z arrow, and are diffused in the centrifugal direction.

  When the vertical axis rotor 8 continuously rotates, the bottom layer water such as lakes and the like is pushed up by the lift-type blade 9, whereby water gathers from the periphery of the vertical axis rotor 8, and the rising water flow hits the rectifying plate 2G. A ripple is generated and diffused in the centrifugal direction, and the entire lake and the like are agitated.

Therefore, oxygen is supplied to bottom water such as lakes and marshes, the amount of dissolved oxygen is increased, and with the activation of microorganisms, water-soluble organic substances are efficiently decomposed and sludge accumulation is suppressed.
In addition, by stirring water, phytoplankton spores on the surface are moved to a thin bottom layer of sunlight, and their growth is suppressed.

In a lake with a large area, it is possible to prevent generation of sludge by installing the stored water purification device 1 at regular intervals.
Moreover, stagnant water is agitated and fluidized, so that the occurrence of water-bloom and red tide is suppressed, and the purification of water is promoted.

  For example, in a domestic sewage septic tank, a pipe installed on the bottom of the tank is constructed by installing a horizontal girder instead of a hollow suspension base on the septic tank, placing a windmill 4 thereon, and suspending a vertical axis rotor 8. Compared to a general aeration apparatus that ejects air bubbles from a general aeration apparatus, dissolved oxygen is increased by reliable stirring, bacteria are preferably propagated to decompose organic matter, and the water stored in the septic tank is purified.

  The suspension base 2 is not limited to a floating body, and a support body (not shown) can be projected on the water surface from a lake shore, a pier or the like, and can be replaced with this.

FIG. 10 is a side view showing Example 2 in which the horizontal axis windmill 11 is selected as the windmill. The same members as those of the previous example are denoted by the same reference numerals and description thereof is omitted.
A horizontal axis windmill 11 is disposed by engaging a rotating portion 11B at the bottom of the casing 11A with the upper end of the vertical main shaft 4A supported by the bearing 3 provided on the upper surface of the suspension base 2.

Inside the housing 11A, a rotor shaft 11C that is long in the front-rear direction is disposed via a bearing 11D, and a horizontal shaft rotor 12 is attached to a rear end portion that protrudes rearward from the housing 11A.
A plurality of lift-type blades 13 are fixed to the peripheral surface of the hub 12A of the horizontal shaft rotor 12, and the tip of each lift-type blade 13 is an inclined portion 13A that is inclined in the direction of the rotor shaft 11C.

In the housing 11A, transmission means including bevel gears 11E and 11F are mounted on the tip of the rotor shaft 11C and the upper end of the longitudinal main shaft 4A, respectively.
Thus, when the horizontal axis rotor 12 rotates, the rotational force is transmitted to the vertical main shaft 4A via the transmission means 11E and 11F, and the vertical axis rotor 8 is rotated.

  A rudder 11H is disposed at the rear of the housing 11A. When wind is received on this side, the housing 11A turns around the rotating portion 11B, and the front surface of the lift-type blade 13 of the vertical rotor 12 is It automatically turns upwind.

  The transmission shaft 10 is covered with a cladding tube 10B for protecting it from adhesion of biofilms, aquatic plants and shellfish due to the growth of microorganisms. The material is, for example, FRP, and it is easy to mount if split bamboo-like two pieces are combined.

  A generator 14 disposed inside the housing 11A is linked to the rotor shaft 11C via a transmission means 11G, and the generated electricity is stored in a storage battery (not shown) and used as a power source for the illumination lamp 15. .

In addition, this invention is not limited to an Example, One part in an Example can be combined, respectively.
In FIG. 1, a generator (not shown) may be disposed on the suspension base 2 and an illumination lamp may be disposed. The illuminating light can also be used as a warning light for nighttime ships or a kidnapping light.

  The support arm 4C of the vertical axis wind turbine 4 is arranged in a cross-like manner so that the lift type blade 5 is set to a small size even if the total wind receiving area of the lift type blade 5 is the same. Can be reduced in height.

  The shape of the suspension base 2 is arbitrary. For example, when a plurality of hollow arms are elongated in the radial direction from the center as in a cross shape in plan view, a wave of water flow rising from the bottom layer is radiated. Flow in the direction.

  The stored water purification apparatus of the present invention is installed in a lake or the like, rotates the vertical axis rotor of the bottom using the rotational force of the windmill, and raises the bottom layer water as a vortex, so without using external power, The water in the lake can be easily agitated and oxygen can be supplied, the generation of sludge and blue-tailed fish can be suppressed, and it can be used for the purification of stored water and waste water.

1. 1. Waste water purification device Suspension base 2A. Hollow ring 2B. Upper plate 2C. Lower plate 2D. Ring 2E. Mooring line 2F. Anchor 2G. 2. Current plate 3. 3. Bearing Vertical axis windmill 4A. Longitudinal spindle 4B. Hub 4C. 4. Support arm Lift type blade 5A. Inclined part 5B. Leading edge 5C. Trailing edge 5D. Inner surface 5E. External side surface 6. Hanging rod 6A. Fitting 6B. Weight 7 Bearing 7A. Support arm 8. Vertical axis rotor 8A. Rotor shaft 8B. Hub 9. Lifting type blade 9A. Inclined part 9B. Leading edge 9C. Trailing edge 9D. Top surface 9E. Maximum chord length
10.Transmission shaft
10A. Fitting
10B. Cladding tube
11． Horizontal axis windmill
11A. Enclosure
11B. Rotating part
11C. Rotor shaft
11D. bearing
11E. 11F. 11G. Transmission means
11H. Rudder
12． Horizontal axis rotor
12A. Hub
13. Lift type blade
13A. Slope
14. Generator
15． Lighting

Claims (7)

Via a bearing provided at the lower end of the plurality of Tsu杆it was suspended from the hanging base formed by arranging a vertical axis wind turbine on the upper surface, a vertical axis rotor and disposed upright rotor axis, the vertical axis wind turbine The vertical main shaft and the rotor shaft of the vertical axis rotor are connected and integrated with a transmission shaft, the vertical axis rotor has the blade tip of the horizontal lift-type blade as an inclined part inclined upward, and the upper surface of the inclined part is When the vertical rotor is rotated by the rotational force of the wind turbine, the bottom water in the stored water is pushed by the trailing edge of the blade inclined part and swirled. accumulated water purification device characterized by comprising in the so that to increase the.   2. The stored water purification apparatus according to claim 1, wherein the suspension base is a floating body in which a plurality of hollow arms are extended in a radial direction from a central portion in a plan view.   The stored water purification apparatus according to claim 1, wherein the transmission shaft is flexible. Each lift type blade in the longitudinal rotor gradually increases the chord length from the blade root to the blade tip, and forms an inclined portion with the tip inclined upward from the maximum chord length portion, and the trailing edge is inclined from the blade root. The stored water purification apparatus according to any one of claims 1 to 3, which is inclined higher than the front edge toward the portion . 5. The stored water purifier according to claim 1, wherein each of the hanging rods can be added with a short one . The stored water purification apparatus according to any one of claims 1 to 5, wherein a weight is attached to a lower portion of each hanging rod.   The stored water purification apparatus according to any one of claims 1 to 6, wherein a generator and an illuminating lamp are disposed so as to generate electric power with the rotational force of the windmill.

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