JPH0688585A - Aerator with large diametral pipe body solid moving blade - Google Patents

Abstract

PURPOSE:To provide an aerator consisting of a stirring simultaneous aerating system for liquid raising the flow velocity and penetration of a water current. CONSTITUTION:A large diametral pipe body connected to a turning shaft in a concentric state is connected to the turning center in the concentric direction, while it is formed into such a structure as submerging the one end in the water even at the lowest, and further it is formed into a construction that installs a spiral or wingy blade part 1 in an inner wall of the large diametral pipe body at the submerged side. Diagonal water currents other than the propulsive direction in the case where moment in time of rotation is added to the blade part are concentrated on the center of the pipe body, and it is also formed into such a structure as amplifying a flow as a water current or muddy stream, etc., structuring the large diametral pipe body on one side as a water current exhaust nozzle, through which a water inlet port 2 is installed in the pipe and simultaneously an air inflow port 15 for letting air flow in is also installed there. Likewise it is also structured to utilize a difference of water currents produced as the blade part produces the water current forcibly, and then a pressure differential is produced and it is structured to draw in air compulsorily.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the flow velocity and penetration of water flow while utilizing the synergistic effect by concentrating the flow direction of the water flow generated at the time of draining water in the large-diameter pipe body to the central part without diffusing it. This is an aerator of the stirring simultaneous aeration system for liquids that strengthens the force, and an aerator with a large-diameter tube-integrated rotary blade that also enhances the suction force of air by the flow velocity of the water flow.

[0002]

[Prior art] Conventionally, there is a method of performing aeration by forcibly compressing gas with a blower or the like when blowing air into the septic tank, but there is a problem in terms of efficient aeration, and aeration by compression Whether the method is a piston method, a rotary method, or a diaphragm method, first of all, there is a problem in compressing the gas itself, which has the property of large elasticity, and especially to a deep area where water pressure is applied. However, there is also a problem in performing aeration by compressing from one end of a thin pipe, and it is pointed out that the efficiency is poor. Further, the piston system and the rotary system are systems with extremely low aeration efficiency because frictional heat is generated during the reversal or rotary motion of the piston system, resulting in energy loss.

[0003]

Therefore, there is an aerator of the air suction type using a screw or the like. This is because the rotation of a ship's screw is used to forcibly generate a water flow in the axial direction in water, and the flow velocity or vortex of the water flow generated in the axial direction is used to end the end of the rotation shaft. In this method, the air is sucked in the opposite direction to the conventional one. According to this method, a highly elastic gas is expanded into the opposite state and is sucked into the water, while at the same time, the bubbles are made fine by the flow velocity of the water flow. This is an epoch-making aeration method that can be performed.

However, the inventor of the present invention has found that during the experiment of this system, the water flow generated suddenly spreads toward the end and becomes weak. Further, the air jetted into the water flow further mixes the brakes to the flow velocity of the water flow, and more air floats, resulting in a weaker penetrating force of the water flow. Therefore, the present inventor considered that the reason why the water flow generated by such a blade portion is rapidly and divergently attenuated is that the conventional screw type blade portion has a problem. In other words, the water is cut off by the rotation of the blades and a swirl is generated at the same time as the propelling water flow in the axial direction, but at this moment the water at the moment of being cut by the blades has a rotational moment as well as a force moment in the axial direction. It was found that the resulting water flow inevitably generated an oblique water flow, resulting in the eddy current being diffused in a radial divergent manner.

[0005]

In view of the above, the present invention concentrates the water flow generated toward the center of the point by making the structure of the blade portion of the screw type of the conventional ship completely different from the arrangement. By doing so, the conventional problems can be solved, and the structure thereof will be described below in detail with reference to the drawings.

A large-diameter pipe 3 is provided which is connected coaxially with a rotating shaft connected to power, and the large-diameter pipe 3 is connected to the rotation center of the rotating shaft in a concentric direction. As a structure in which at least one end of the body 3 is submerged in water, a spiral or wing-shaped blade portion 1 is projected on the inner wall of the large-diameter tubular body 3 on the submerged side. As a structure for concentrating a diagonal water flow other than the propulsion direction when a moment is applied at the center of the large diameter pipe body 3, as a structure for amplifying the flow such as the water flow or vortex flow in the propulsion direction, the large diameter pipe body 3
As a structure in which one of them is used as a water jet outlet, a water intake port 2 is provided in the pipe of the large-diameter tubular body 3 and at the same time, an air inlet port 4 for allowing air to flow in is also provided so that the blade portion 1 forcibly flows the water. In addition to the structure for generating air, a structure for utilizing the difference in the generated water flow is used to generate a pressure difference and forcibly suck air.

With the structure in which the large-diameter pipe 3 and the blade portion 1 rotate, the water flowing into the large-diameter pipe 3 is forcibly rotated, and at the same time, the water flow rotates to generate a vortex. As the structure to be used, the structure in which the vortex generated by the vortex in the large-diameter tubular body 3 is used in the air passage 15 is a structure in which the air passage 15 and the air inlet 4 are communicated with each other.

An air introduction pipe 11 is provided at the center of the large-diameter pipe body 3.
As a structure in which the hollow portion in the introduction pipe 11 is communicated with the air inlet 4, the introduction pipe 11 is extended in the large-diameter pipe body 3 and has an air ejection hole portion 10 near the blade portion 1. The structure has a structure in which air is sucked by utilizing the pressure difference due to the flow velocity of water flow and the action of vortex or turbulence.

A difference in blade flow generated when the blade portion 1 drains water by forming the ejection hole portion 10 in the surface of the blade portion 1 provided in the large-diameter tubular body 3 or in the introduction pipe 11 or the like near the surface portion. As a structure for generating a pressure difference due to the flow difference, the air passage 15 is communicated to the ejection hole portion 10 in the hollow blade portion 1 or in the vicinity of the surface portion, and The structure for communicating with the air inlet 4 through the air passage 15 is a structure for utilizing the pressure difference generated at the time when the blade portion 1 performs the draining motion, and the structure for sucking air from the ejection hole portion 10.

The rising portion 13 is formed in the blade width direction in the blade portion 1 provided in the large-diameter tubular body 3 while forming the rising portion 13 in the flow direction of the water flow.
As the structure for sucking air in the width direction of the blade by utilizing the pressure difference of the water flow from the jet hole portion 10 provided near the root or the tip of the nozzle, the structure for generating the pressure difference of the water flow by the rising portion 13 is adopted in the air suction method. .

[0011]

[Operation] The present invention has a completely different generation structure from the conventional screw type, which is different from the water flow generation method in which the blade portions 1 are radially projected to the tip of the rotary shaft, and is absolutely different. The feature of the present invention is that the vane portions 1 projecting from the inner wall of the large-diameter tubular body 3 concentrate the water flow generated between them to the central portion to utilize the synergistic effect of the water flow and the flow velocity and the penetration force. In particular, the force component when the water flow is generated by the rotation of the blade portion 1 is that the water is first cut off and the swirling flow is generated at the same time as the propelling water flow in the axial direction. At the moment when the water is cut into the part 1, a rotational moment is applied at the same time as a force moment in the axial direction, and thus the generated water flow is an oblique water flow which is a force direction component that becomes a divergent eddy current. In the structure of the present invention, this diagonal water flow is applied to the large-diameter pipe body 3. Among the water streams generated in a spiral shape by collecting at the central portion, the diagonal water streams are pressed against each other to the central portion to correct the force in the propulsion direction. Further, as an important structural difference for that purpose, the direction in which the blade portion 1 is formed is fundamentally different. In other words, the present invention is different from the conventional structure in which the direction in which the blade portion 1 is formed is projected in the radial direction from a certain object, and the present invention is configured so that the direction in which the blade 1 is projected is directed toward the point center direction. Therefore, while the certain object is conventionally a rod (shaft) -shaped rotating body, the present invention absolutely requires a large-diameter tubular rotating body because of its structure. By the way, the blade portion 1 of the present invention may have any shape such as a spiral shape or a blade shape, and the number of the blade portions 1 does not matter, and for example, one spiral blade is projected so as to wind around the inside of the large-diameter tube body 3. It may be the one that was given.

Further, according to the present invention, a pressure difference is generated to forcibly suck air by using a structure that utilizes the difference in the generated water flow.

2. A structure for forcibly rotating the water flowing into the large-diameter pipe body 3 as described above, the water is forcibly swirled by the rotation of the blade portion 1 at the same time, and a vortex flow is generated in the large-diameter pipe body 3. Although generated, at this time, a vortex is also generated in the large-diameter tube body 3, the water surface is sucked at the center of the vortex, and the air passage 15 to the blade portion 1 is gradually formed, and the blade portion 1 The air sucked up to is crushed there and ejected from the large-diameter pipe body 3. That is, the spiral is used as the air passage 15.

Also according to the present invention

3. A method for supplying air by utilizing a function different from the method of utilizing a spiral, which eliminates irregular elements such as suction from the spiral. In other words, this is to provide the air introduction pipe 11 in the central portion of the large-diameter pipe body 3 and use the hollow portion therein as the air passage 15. What is the thickness and length of the introduction pipe 11? However, the water flow may be forcibly generated by the blade portion 1, and the introduction pipe 11 may be used by utilizing the flow velocity of the water flow or the pressure difference between the water flow generated around the blade portion 1 and the generated pressure difference at the center of the vortex flow. Although the air is ejected from the ejection hole portion 10, the number and size of the ejection hole portions 10 and the position where the introduction pipe 11 is formed do not matter.

Further of the present invention

4. The jet hole portion 10 is formed on the surface portion of the blade portion 1 or the introduction pipe 11 or the like near the surface portion by utilizing the pressure difference generated when the blade portion 1 cuts water. Although the structure for sucking air from the ejection hole portion 10 is used, when the blade portion 1 makes a rotational movement at an angle of attack, the portion that cuts off water to generate a water flow is the blade portion 1 ventral surface portion 16, but By creating a streamlined shape that creates a flow difference by causing the water flowing to the part 17 to be turbulent as much as possible and to join the flow with the abdominal part 16 again at the trailing edge 18 The propulsion force or the lift force is generated in the case of an airplane, but the present invention is to increase the flow velocity by rectifying the water flow as much as possible in the air suction method like the principle of the fluid flowing through the streamlined object. The air pressure is increased by increasing the pressure difference generated at There is one way to increase it, and it is a suction principle that is completely opposite to the above principle.The irregular pressure of the turbulent flow is generated by generating turbulent flow by increasing the fluid resistance of the water flow flowing through the back surface as much as possible. Although it is possible to suck air from the difference, the suction principle by turbulence has the disadvantage that the flow velocity of the water flow does not increase, and even if the rotation speed is increased, the flow velocity of the water flow increases due to the turbulence. However, the pressure difference does not increase, and the suction force of the air does not increase correspondingly. However, this method may be used. By the way, while making the water flow flowing on the surface of the blade 1 a pressure difference,
Moreover, the structure is such that the air is sucked by the force of the water flow when the blade portion 1 drains water. The method of sucking the air at the time of draining water is to provide a washing plate-like step on the abdominal surface portion 16. The air ejection hole portion 10 is provided at the rising portion or the depressed portion.
How to provide. A method in which the ejection hole portion 10 is formed near the tip edge portion 18 and the ejection hole portion 10 is provided in the cavitation generation portion of the conventional screw where the pressure difference occurs most. A method of providing the ejection hole portion 10 on the rear edge portion 18. A method of providing the ejection hole portion 10 on the back surface portion 17. A method of ejecting air by projecting the introduction pipe 11 near the back surface portion 17 or the rear edge portion 18. Etc. and any method is acceptable. This is the patent application Nos. 62-016634 and 62-11 filed by the present applicant as a new aeration method for a conventional screw type aeration apparatus.
This is the technology of the blade surface jet aeration device of No. 1366 and No. 2-254693 of Heisei.

Other methods for ejecting air

5. The jet hole portion 10 provided near the root or tip of the blade portion 1 while having the structure in which the rising portion 13 is formed in the flow direction of the water flow flowing through the back surface portion 17 of the blade portion 1 as described above. The back flow flows through the rising portion 13 by using the structure for sucking the air in the width direction of the blade by utilizing the pressure difference of the water flow and the structure for generating the pressure difference of the water flow by the rising portion 13 in the air suction method. In this case, a vortex is generated in the blade width direction, and the suction force of the vortex is used to forcibly suck air from the ejection hole portion 10. However, the rising portion 13 not only generates the vortex, but also the rear surface. The surface separation phenomenon occurs when the flow velocity is increased. This surface peeling phenomenon is that a void is naturally formed along the rising portion 13, and the present invention uses this void as an air passage, but the air jetted into the void is sucked into the water flow. While being carried out, it is sucked up to the front end direction of the rising portion 13 and as a result air is evenly ejected from the entire back surface portion 17. In this sense, the present invention can be said to be a “structure that utilizes a vortex flow in the blade width direction” by forming the rising portion 13, and at the same time a “structure that utilizes voids due to surface separation”. Further, the present invention is directed to the trailing edge portion 1 of the blade portion 1.
8 is cut into a wedge shape to stand up and rise 13
The structure may be a vortex generating structure corresponding to the above, and air may be sucked from the ejection hole portion 10. Furthermore, since the present invention, which is also a “vortex flow utilizing structure or a void utilizing structure due to surface separation”, is a “pressure difference utilizing structure”, for example, even a “stepped structure” is a “rise portion” of the present invention. It can be said that there is. This is a patent application filed by the applicant of the present invention as a new aeration method for a conventional screw type aeration device.
This is the technology for the aeration device of the partition structure type 929.

[0016]

【Example】

FIG. 1 is a sectional perspective view showing a first embodiment of the present invention. This figure is

1.

2. An aeration device having the characteristics of claim 2, but a large amount of water may flow into the pipe by attaching an ear portion 12 to the water intake port 2 of the large diameter pipe body 3. Further, the fixing method of this device depends on the motor portion 9 and the shaft supporting portion 6, but the shaft supporting portion 6 may be omitted and the motor portion 9 alone may be used for supporting. Further, in this figure, the power from the motor unit 9 is transmitted to the large-diameter pipe body 3 by the universal joint 7 such as a spring, but this structure is omitted and the large-diameter pipe body is directly passed from the motor unit 9 through the joint unit 8. It may be one that transmits power to the body 3. In addition, the air aeration method of the present invention does not require any structural material for the passage, which has conventionally been used as the air passage 15 by making the rotating shaft a hollow structure, and uses the vortex naturally generated in the pipe as the air passage 15. Since it is used, no structural material is needed for the air passage 15. By the way, the present invention may have any shape as long as the blade portion 1 has a spiral shape or a blade shape as long as it generates a water flow or a pressure difference.

Further

FIG. 1 is an aeration apparatus according to a first embodiment that can be developed in various ways in each part.
C, D, E, and F are developed views, respectively, and the specification diagrams A and B are cross-sectional perspective views when an introduction pipe is provided, and the specification diagrams C, D, E, and F are The cross-sectional perspective view of the blade part 1 is shown, respectively.

The specification diagram A is

3. An introduction pipe 1 having the characteristics of claim 3.
1 is provided at the center of the large-diameter tubular body 3,

2. A special introduction pipe 11 is provided instead of using such a spiral as the air passage 15, and the air passage 1 is provided.
It is used as No. 5 and is sucked into water through the ejection hole portion 10. However, the length of the introduction pipe 11 in this case does not matter, and the position of the ejection hole portion 10 does not matter either.

In the specification diagram B, the air supplied from the introduction pipe 11 is supplied to the air passage 15 on the back side of the protruding blade portion 1.
Although it is sucked into the water on the back surface from the ejection hole portion 10 at the base of the blade portion 1, though the structure of the blade portion 1 is spiral,

5. A jetting hole portion 10 formed at the base of the blade portion 1 by having the rising portion 13 of the blade portion 1 as a stepped shape on the back surface portion 17 and causing turbulent flow or surface separation phenomenon in the back flow. More air is sucked in.

Specifications C is

4. An air ejection hole portion 10 is formed on the surface of the blade portion 1 while the inside of the blade portion 1 is hollow so as to communicate with the air inlet 4 through an air passage 15. The drawing is just the back part 1 of the blade part 1.
7 and the edge portion 18 are formed with the ejection hole portion 10, and when the water flow that flows around the back surface portion 17 when draining water is merged again at the trailing edge portion 18, a difference in flow is caused by a pressure difference. However, in this section, in this flow difference, the force generated in the rear surface portion 17 is a force that pulls the surface portion upward, so that air is efficiently generated from the ejection hole portion 10 of the rear surface portion 17. It will be ejected. Further, by providing the ejection hole portion 10 at the tip edge portion 18 of the blade portion 1, the ejection hole portion 10 is provided at a place where a pressure difference is most likely to occur such as cavitation.

Specification diagram D is the same as C diagram

4. The rear part 17 is characterized by having the rising portion 13 as in claim 5, while having the features of claim 4.
In addition to the force of pulling the surface portion of the above, the turbulent flow and the surface separation phenomenon are generated to further generate a pressure difference. However, the basic point of this drawing is different only in that the jet hole portion 10 is also connected to the vane portion 1 as in claim 4, and therefore the vane portion 1 is also hollow to form the air passage 15.

The specification diagram E is

5. The drawings are characterized by the following:

5. The front edge portion 18 of the vane portion 1 as described above is formed as a partition-shaped rising portion 13, and a vortex or a surface separation phenomenon is generated in the rising portion 13 of the back flow to suck in the gap. Air is sucked from the ejection hole portion 10 formed at the base of the blade portion 1 by a force.

The specification diagram F is

4. The introduction pipe 11 is provided so as to form the air ejection hole portion 10 near the back surface portion 17 of the surface portion, although the inside of the blade portion 1 is not hollow. In the drawing, the jet holes 10 are just formed in the back surface portion 17 and the edge portion 18 of the blade portion 1, and when the water is drained, the water flow circling around the back surface portion 17 again becomes the rear edge portion. 1
When merged at 8, there is a difference in flow due to the pressure difference,
In this section, the force generated in the back surface portion 17 of the difference in the flow is a force that pulls the surface portion upward,
Air is efficiently ejected from the ejection hole portion 10 of the back surface portion 17. Further, by providing the ejection hole portion 10 at the tip edge portion 18 of the blade portion 1, the ejection hole portion 10 is provided at a place where a pressure difference is most likely to occur such as cavitation.

By the way, according to the present invention, the large-diameter pipe body 3 is further extended for deep aeration, and the blade portion 1 for the purpose of aeration as in this embodiment is projected and at the same time air and water flow are transferred. It is also possible to provide a special spiral blade part etc. at the same time to transfer the dissolved oxygen water to the water bottom at the same time, or to bring a new transfer pipe body close to the water jet outlet of the aeration device of this figure and to transfer the liquid by the spiral. It may be transferred. As described above, the liquid transfer method using the spiral is already known.

[0025]

According to the present invention, the vanes projecting from the inner wall of the large-diameter pipe concentrate the water flow generated between them into the central part, thereby utilizing the synergistic effect of the water flow and the flow velocity. It enhances penetration. Especially, when the water flow is generated by the rotation of the blade part 1, the oblique water flow, which is the force direction component of the water flow that becomes a vortex that spreads toward the end, is collected at the center of the large-diameter tubular body, thereby The pressing force to the central portion is corrected so as to extract the force in the propulsion direction. Further, as an effect from an important structural difference for that, in particular, since the direction in which the blade portion 1 is formed is fundamentally different, the blade portion 1 is projected from a certain object in the radial direction, as compared with the conventional structure. , The present invention has a structure in which the direction of projecting from a certain object is directed toward the center of the point, so that even if the blade width is the same, the water flow is concentrated in the central part It is possible to narrow down while strengthening by the effect or mutual compulsion effect, etc., and it is also possible to speed up the flow velocity while strengthening the penetrating force of the water flow. In this way, the pressure difference increases in proportion to the increase in the flow velocity of the water flow or swirl flow, so that the suction force of the air can also be increased. Further, according to the present invention, since the structure and the operation are fundamentally different from the conventional screw type aerator, the vortex flow generated even when the spiral in the pipe body is used for the air passage as in claim 2 is strong, Since the vortex is generated in the body while the tube is rotating, the vortex continues to be generated without interruption and can be used as an air passage, which has been impossible in the past. Further, the present invention can utilize the technology such as the blade surface jetting method, which is the new aeration technology of the applicant's patent application, and the suction method by the partition structure of the blade portion, so that the distribution state of the air to the cross section of the vortex flow is evenly distributed. It is possible to mix without mixing, and the amount of air jetted can be further increased. Further, the blade portion of the present invention may be any shape such as a spiral shape or a blade shape, and the number of blade portions does not matter, and for example, one spiral blade is provided so as to be wound around the inside of the large-diameter pipe body. Anything is fine. By the way, the present invention relates to the transport of something at the same time as the minute generation of bubbles. However, due to the structure of this device, it can be used as it is for the transport of liquids or the transport of something, for example, in a snow mine. It is also possible to crush the snow and agitate it by the action of bubbles at the same time as transferring.

[Brief description of drawings]

FIG. 1 and specification diagrams A, B, C, D, E, and F are sectional perspective views showing a first embodiment of the present invention. A, B, C, D, E, F --- Specification drawing, 1--blade part,
2--Inlet, 3--Large diameter tube, 4-Air inlet, 5-tube support, 6-shaft support, 7-universal joint, 8-joint, 9-motor, 10-spout hole, 11- Introducing pipe, 12-ears, 13-rising part, 14-bearing part, 15-air passage, 16-belly part, 17-back part, 18-edge part

Claims (5)

[Claims] 1. A large-diameter tube body coaxially connected to a rotating shaft connected to power is provided, and the large-diameter tube body is connected to the center of rotation of the rotating shaft concentrically. As a structure in which at least one end of the diameter pipe body is submerged in water, as a structure in which a spiral or wing-shaped blade portion is projected on the inner wall of the large diameter pipe on the submerged side, As a structure for concentrating a diagonal water flow other than the propulsion direction when a moment is applied at the center of the large-diameter pipe, one of the large-diameter pipes is used as a structure for amplifying a flow such as the water flow or vortex in the propulsion direction. As a structure for making a water jet, a structure is provided in which a water inlet is provided in the pipe of the large-diameter pipe body and at the same time an air inlet for letting in air is also provided so that the vanes forcefully generate a water flow. However, a structure that utilizes the difference in the generated water flow By generating a pressure difference, aerator having a large diameter pipe member integrally rotating blades, characterized in that it has a structure for forcibly sucking air. 2. The structure in which the large-diameter pipe body and the vane portion are rotated so that the water flowing into the large-diameter pipe body is forcedly rotated, and at the same time, the water flow is rotated to cause a vortex flow. 2. The structure for generating the above-mentioned structure, wherein the vortex generated by the vortex flow in the large-diameter tubular body is used for the air passage, and the air passage and the air inlet are connected to each other. An aeration device having the large-diameter tubular body-integrated rotary vane described. 3. A structure in which an air introduction pipe is provided at the center of the large-diameter pipe body, a hollow portion in the introduction pipe communicates with an air inlet, and the introduction pipe is the large-diameter pipe body. A structure having an air ejection hole portion in the vicinity of the vane portion while being extended, so that air is sucked by utilizing a pressure difference due to a flow velocity of a water flow and a vortex or turbulent flow. An aeration apparatus having a large-diameter tubular body-integrated rotary blade according to the item. 4. A jet hole portion is formed in a surface portion of a blade portion provided in the large-diameter tubular body or an introduction pipe in the vicinity of the surface portion,
As a structure that utilizes the difference in the flow of the blades that occurs when the blades cut water, as a structure that generates a pressure difference due to the difference in the flow, up to the ejection holes in the hollow blades or near the surface As a structure in which the air passage is communicated to communicate from the ejection hole portion to the air inlet through the air passage, a structure that utilizes a pressure difference generated when the blade portion performs a draining motion is used. An aeration device having a large-diameter tubular body integrated rotary blade according to claim 1, 2 or 3 having a structure for sucking more air. 5. The blade portion provided on the large-diameter tubular body has a structure for forming a rising portion with respect to the flow direction of the water flow, and the rising portion is extended in the blade width direction to form a root or a tip of the blade portion. The structure for sucking air in the width direction of the blade by utilizing the pressure difference of the water flow from a jet hole provided in the vicinity, and the structure for generating the pressure difference of the water flow by the rising portion is adopted in the method of sucking the air. Item 1, Item 2, or Item 3
An aeration apparatus having a large-diameter tubular body-integrated rotary blade according to the item.