TWI830509B - Downflush aerator - Google Patents

Abstract

A downflush aerator, including a motor device installed on a floating frame mechanism, a shaft tube connected to the motor device and extending downward into the water, at least one downflush component installed on the shaft tube and located in the water, and a An impeller assembly is installed on the shaft tube and spaced below the at least one lower punch assembly. The shaft tube can be driven by a motor device to drive the impeller assembly to generate radial water flow, and drive the at least one lower flushing assembly to generate downward flow of water flow. The downflush aerator of the present invention can indeed be used to drive water bodies of different depths in the pool to produce large-scale up and down mixed flows, and can more efficiently increase the dissolved oxygen content of water bodies of different depths. It is a quite innovative and practical creation. .

Description

Downflush aerator

The present invention relates to an aerator for a pool, in particular to a straight-axis aerator.

Existing aerators used in breeding ponds mainly connect a gas-liquid mixing pipe to the drain outlet of the submersible motor. One end of the gas-liquid mixing pipe is provided with a smaller-diameter water conduit, and one end of the water conduit is connected to the submersible motor. The other end of the water conduit pipe extends into the gas-liquid mixing pipe, and an air inlet pipe is provided on the wall of the gas-liquid mixing pipe. The other end of the air inlet pipe can extend upwards out of the water surface. Through the above structure, the suction and pressurizing effect of the submersible motor can be used to provide a strong water flow from the drain port of the submersible motor, and the water flow will be sprayed into the gas-liquid mixing pipe through the water conduit pipe. During the rapid flow of water through the gas-liquid mixing tube, air will be sucked in through the air inlet tube, and the air will form bubbles and dissolve in the water to achieve the purpose of aeration.

Although the above-mentioned existing aerator is used, the negative pressure generated when the water discharged from the drain port of the submersible motor flows rapidly through the air-liquid mixing pipe can be used to suck air into the air inlet pipe and mix it with the water to achieve improvement. The purpose of dissolved oxygen, but the mixing efficiency of air and water produced is low. Therefore, there is still room for improvement in existing aerators.

Therefore, it is an object of the present invention to provide an underflush aerator that can improve at least one of the shortcomings of the prior art.

Therefore, the downflush aerator of the present invention is suitable for being installed floating on water. The downflow aerator includes a floating frame mechanism for floating on the water surface, a motor device installed on the floating frame mechanism, a shaft tube connected to the motor device and extending downward into the water, and at least A downstroke assembly is installed on the shaft tube and used to be arranged under the water surface, and an impeller assembly is installed on the shaft tube and is spaced below the downstroke assembly. The shaft tube can be driven by the motor device to rotate around its own axis. The at least one lower punch component can be rotated in conjunction with the shaft tube to generate water flowing from top to bottom. The impeller assembly can be rotated in conjunction with the shaft tube. Produce radial water flow.

The effect of the present invention is that the underflush aerator of the present invention can indeed be used to drive the upper and lower water bodies of the pool to produce large-scale up and down mixed flow, and can further be used to increase the dissolved oxygen content of the water bodies at different depths in the middle and lower layers, improving The shortcomings of existing aerators are a rather innovative and practical creation.

Referring to Figures 1 and 2, one embodiment of the downflush aerator of the present invention is suitable for installation in a pool 900, such as an aquaculture pool, and can be used to increase the dissolved oxygen content of the water in the pool 900. . The downflow aerator includes a floating frame mechanism 2 for floating on the water surface, a motor device 3 installed and fixed on the top side of the floating frame mechanism 2, and a top end coaxially connected to the motor device 3. The output shaft (not shown) extends downward through the floating frame mechanism 2 and is inserted into the shaft tube 4 in the water. A plurality of upper and lower spaced sleeves are fixed outside the shaft tube 4 and are used to be immersed in the water. 5, and an impeller assembly 6 that is sleeved and fixed outside the bottom end of the shaft tube 4 and spaced below the lower punch assemblies 5. Since there are many types of the floating frame mechanism 2 and the motor device 3, they are not the focus of the improvement of the present invention, so they will not be described in detail, and the implementation is not limited to the figures.

The shaft tube 4 is vertically connected to the motor device 3, and is used to be vertically inserted into the pool 900, and can be driven by the motor device 3 to rotate around its own axis. The shaft tube 4 is in the shape of a hollow tube, and its interior defines an air inlet passage 41 extending up and down along its length direction and opening downwards, and its section for being arranged above the water surface is radially perforated with a plurality of air inlet passages 41 connected to the inlet passage 41 . The air inlet hole 42 of the air channel 41. The air inlet channel 41 can communicate with the outside world through the air inlet holes 42 .

Referring to Figures 1, 2, and 3, the lower flush components 5 are used to be completely immersed in water. For the convenience of explanation, the following takes one of the lower punch components 5 as an example for structural description.

Each lower punch assembly 5 includes a fixed seat 51 that is sleeved and fixed outside the shaft tube 4 , a lower punch tube 52 that penetrates up and down and surrounds the fixed seat 51 at intervals, and a plurality of lower punches 52 connected to the fixed seat 51 . The water stirring blade 53 is between the opposite peripheral surface of the lower punch 52 .

The fixed seat 51 has an inner cylinder part 511 that is sleeved and fixed on the shaft tube 4, an outer cylinder part 512 that is spaced around the inner cylinder part 511, and a plurality of radially connected inner cylinder parts 511 and outer cylinder parts. The support portion 513 is between the opposing peripheral surfaces of the barrel portion 512 . The support portions 513 are spaced apart around the periphery of the inner cylinder portion 511 .

The water-stirring blades 53 are spaced around the periphery of the outer cylinder 512 and span between the outer cylinder 512 and the opposing peripheral surfaces of the top end of the lower punch cylinder 52 . Each water-stirring blade 53 is in the shape of an arc, and the top edge of each water-stirring blade 53 is higher than the top of the lower punch 52 , that is, part of it protrudes upwards from the top of the lower punch 52 . During implementation, the number of the water stirring blades 53 can be 3 to 6.

Each of the lower punch components 5 will be driven to rotate synchronously by the rotation of the shaft tube 4, and the rotation of the water stirring blades 53 will generate water flow pushed from top to bottom in the lower punch tube 52. Since the water-stirring blades 53 partially protrude upward from the top of the lower punch 52 , when the lower punch assembly 5 is driven to rotate, the water-stirring blades 53 will cooperate to move the top of the lower punch 52 . The water continues to be pushed downward into the lower flush tube 52 , thereby continuously pushing the upper water body downward toward another lower flush assembly 5 or the impeller assembly 6 below.

Because the downflush components 5 are spaced up and down outside the shaft tube 4 and distributed at different depths of the pool 900, they can be used to drive water bodies of different depths in the pool 900 to flow downward and mix.

Referring to Figures 2, 4, and 5, the impeller assembly 6 is installed and fixed on the bottom end of the shaft tube 4, and includes an upper impeller 61 that is sleeved and fixed outside the shaft tube 4, and an overlapping fixed upper impeller 61. Lower impeller 62 below. The upper impeller 61 has a tubular sleeve portion 611 that is sleeved and fixed outside the shaft tube 4, an impeller portion 612 that is sleeved and fixed outside the sleeve portion 611, and an impeller coaxially disposed in the sleeve portion 611. Stirring part 615. And the sleeve part 611 is connected with the bottom opening of the air inlet channel 41 .

The impeller part 612 has a circular top plate 613 that is horizontally sleeved outside the casing part 611, and a plurality of triangular pieces extending radially and protruding from the bottom surface of the top plate 613 at intervals around the axis of the top plate 613. Drainage board 614. The bevel edge of each drainage plate 614 is radially inwardly facing. The radially inner edges of the drainage plates 614 cooperate to define a central area 610 connected below the bottom opening of the sleeve portion 611 .

The stirring part 615 has a connecting column 616 coaxially arranged in the casing part 611 and spaced apart from the inner circumferential surface of the casing part 611, and a plurality of connecting columns 616 spaced around the periphery and connected to the casing part 611 The blade 617 is between the opposite peripheral surfaces of the connecting column 616 . Each blade 617 is in the shape of an arc blade.

The lower impeller 62 has a bottom plate portion 621 that is stacked against the bottom edge of the drainage plates 614 and installed and fixed below the top plate 613 , and a water rejector protruding from the center of the top surface of the bottom plate portion 621 and located in the central area 610 . part 622, and a plurality of blade parts 623 protruding from the top surface of the bottom plate part 621 and located in the central area 610 at intervals around the water rejection part 622. In this embodiment, the water rejection part 622 is in the shape of a right cross blade, and each blade part 623 is in the shape of an arc blade.

The impeller assembly 6 will be driven to rotate synchronously by the rotation of the shaft tube 4 . When the impeller assembly 6 rotates, the rotation of the blades 617 of the stirring part 615 will generate a downward negative pressure suction force in the casing part 611 and the air inlet channel 41, and this negative pressure suction force will drive the inlet The air channel 41 sucks outside air through the air inlet holes 42 . The air inlet channel 41 will guide the inhaled air downward and inject it into the central area 610 . The rotation of the water rejection part 622 will stir and mix the air and water injected into the central area 610, thereby generating a bubble-rich water flow flowing radially outward toward the blade parts 623. The rotation of the blade portions 623 will continuously stir the air and water, and push the bubble-rich water flow radially outward toward the drainage plates 614 . Finally, the rotation of the drainage plates 614 pushes the bubble-rich water flow radially outward and mixes with the surrounding water body, so that a large amount of air is dissolved in the water, thereby increasing the dissolved oxygen content of the surrounding water body.

Referring to Figures 2, 3, and 4, when the downflush aerator of the present invention is used, the floating frame mechanism 2 will be pulled and positioned in the pool 900 via a rope (not shown). When the motor device 3 is started, the shaft tube 4 will be driven and rotated synchronously by the motor device 3, thereby driving the lower punch components 5 and the impeller component 6 to rotate synchronously.

The downflush components 5 will generate water flowing from top to bottom in the water. That is to say, the downflush component 5 relatively above will transport the water body at the depth downward to the other downflush component 5 below. The other downflush component 5 then continuously transports the water body at the depth to the other downflush component 5 below. This design can be used to quickly transport the oxygen-rich upper water body down to different depths, and can be used to increase the dissolved oxygen content of the deeper water body.

At the same time, the impeller assembly 6 will inhale outside air through the air inlet holes 42 and the air inlet channel 41 of the shaft tube 4, and stir and mix the inhaled air and water to generate a radially outward flow of rich water. The flow of bubbles increases the amount of dissolved oxygen in the surrounding water.

Referring to FIG. 5 , in this embodiment, the blades 617 of the stirring part 615 are disposed between the connecting posts 616 and the opposing peripheral surfaces of the casing part 611 . However, during implementation, in other embodiments of the present invention, In this case, it is not necessary to provide the connecting column 616 in the stirring part 615. The blades 617 can be directly protruded on the inner circumferential surface of the casing part 611, which can also generate negative pressure suction from top to bottom when rotating. . In addition, since the blades 617 that can be driven to generate downward negative pressure suction in the air inlet passage 41 have many shapes, for example, they can be straight blades that are inclined up and down, so during implementation, the blades 617 are not Limited to the above forms. During implementation, only one blade 617 may be provided in the casing portion 611 .

Furthermore, in this embodiment, the water rejection portion 622 of the lower impeller 62 is a right cross-shaped piece, but during implementation, it can also be changed to a spiral cross-shaped piece. In addition, the lower impeller 62 does not necessarily need to be provided with the blade portions 623 .

In this embodiment, a plurality of lower punch components 5 are provided with upper and lower intervals. However, during implementation, only one lower punch component 5 may be provided.

In summary, through the structural design of the lower punch components 5 and the impeller assembly 6 that can be linked and rotated synchronously by the shaft tube 4, the lower punch components 5 can be used to cooperate to move the oxygen-rich upper water body to the It is transported downward to different depth positions, and at the same time, the impeller assembly 6 is used to directly disperse and distribute the air sucked downward through the shaft tube 4 into the lower water body, thereby greatly increasing the dissolved oxygen content of the middle and lower water bodies. Therefore, the underflush aerator of the present invention can indeed be used to drive the upper, middle and lower water bodies of the pool 900 to produce large-scale up and down mixed flows, and can directly drive air into the lower water body, thereby improving the pool more efficiently. The dissolved oxygen content of 900 can improve the shortcomings of the existing aerator. It is a quite innovative and practical creation. Therefore, the purpose of the present invention can indeed be achieved.

However, the above are only examples of the present invention. They cannot be used to limit the scope of the present invention. All simple equivalent changes and modifications made based on the patent scope of the present invention and the contents of the patent specification are still within the scope of the present invention. within the scope covered by the patent of this invention.

2: Floating frame mechanism 3: Motor device 4: Shaft tube 41:Inlet channel 42:Air intake hole 5:Under punch component 51: Fixed seat 511: Inner cylinder part 512:Outer cylinder part 513: Support part 52: Lower punch barrel 53:water stirring blade 6: Impeller assembly 61: Upper impeller 610:Central area 611:Casing Department 612: Impeller part 613:top plate 614: Drainage board 615: Stirring Department 616:Connecting column 617:Leaf plate 62: Lower impeller 621: Bottom plate part 622:Water dumping department 623: Blade part 900:Pool

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: Figure 1 is a perspective view illustrating an embodiment of the downflush aerator of the present invention; Figure 2 is a side view schematically illustrating the situation when the embodiment is floating and arranged in a pool; Figure 3 is an incomplete side cross-sectional view illustrating the structure of two lower punch assemblies of this embodiment; Figure 4 is an incomplete side cross-sectional view illustrating the structure of a lower punch assembly and an impeller assembly in this embodiment; and Figure 5 is an exploded perspective view illustrating the structure of the impeller assembly.

2: Floating frame mechanism

3: Motor device

4: Shaft tube

42:Air intake hole

5:Under punch component

6: Impeller assembly

900:Pool

Claims (13)

A downflush type aerator is suitable for floating on the water, and includes: a floating frame mechanism for floating on the water; a motor device installed on the floating frame mechanism; a shaft tube connected to the floating frame mechanism. The motor device extends downward into the water and can be driven by the motor device to rotate around its own axis; at least one downstroke component is installed on the shaft tube and is used to be arranged under the water surface. The at least one downstroke component includes a A fixed seat that is sleeved and fixed on the outside of the shaft tube, a lower punch that passes through the upper and lower parts and is spaced around the outside of the fixed seat, and a plurality of lower punches that are spaced around the periphery of the fixed seat and connected between the fixed seat and the lower punch. There are water stirring blades between the opposing peripheral surfaces. When the at least lower flushing component is driven and rotated by the shaft tube, the water stirring blades will generate water flow from top to bottom in the lower flushing tube; and an impeller assembly is installed on The shaft tube is spaced below the lower punch component and can be rotated in conjunction with the shaft tube to generate radial water flow. The downflush aerator as described in claim 1 includes a plurality of downflush assemblies that are spaced up and down and sleeved outside the shaft tube, and are spaced apart above the impeller assembly. The downflush type aerator as claimed in claim 2, wherein the fixed seat of each downflush assembly has an inner cylinder portion that is sleeved and fixed outside the shaft tube, and a spacer surrounding the inner cylinder portion. The outer cylinder part, and a plurality of support parts distributed at intervals along the periphery of the inner cylinder part and connected between the opposing peripheral surfaces of the inner cylinder part and the outer cylinder part, the water stirring blades are connected between the outer cylinder part and the outer cylinder part Between the facing peripheral surfaces of the lower punch barrel. The downflush type aerator as claimed in any one of claims 1 to 3, wherein the shaft tube defines an air inlet channel extending up and down with the mouth facing downward, and has an air inlet passage passing through its top end and connected with the air inlet channel. The air inlet passage is connected to provide an air inlet above the water surface. The impeller assembly includes an upper impeller sleeved and fixed on the shaft tube, and a lower impeller installed below the upper impeller. The upper impeller has an A tubular casing part that is sleeved outside the shaft tube and communicated with the bottom opening of the air inlet channel, an impeller part that is sleeved outside the casing part and assembled with the lower impeller, and an impeller part connected to the sleeve The stirring part on the inner circumferential surface of the pipe part. When the impeller assembly is driven to rotate, the impeller part and the lower impeller will rotate to generate radially outward flowing water. The rotation of the stirring part will generate a downward flow in the air inlet channel. Negative pressure suction. The downflush aerator according to claim 4, wherein the stirring part has a connecting column coaxially arranged in the casing part, and a plurality of connecting columns spaced around the periphery of the connecting column and connected between the casing part and the casing part. The blades connect the opposing peripheral surfaces of the columns. The downflow aerator as claimed in claim 4, wherein the impeller part has a sheet-shaped top plate that is sleeved outside the casing part, and a plurality of radially extending and spaced apart around the axis of the top plate. A drainage board protruding from the bottom of the roof. The downflush type aerator as claimed in claim 6, wherein the lower impeller has a sheet-shaped bottom plate that is stacked upward against the bottom edge of the drainage plates and installed and fixed on the top plate, and a protruding There is a water rejection part on the top surface of the bottom plate and located below the casing part, and the water rejection part is surrounded by the drainage plates. When the lower impeller rotates, the water rejection part will guide the casing part downward. The lead is empty The air is mixed with water and pushed radially outward toward the drainage plates. The downflush aerator as claimed in claim 7, wherein the lower impeller also has a plurality of blade portions protruding from the top surface of the bottom plate and distributed at intervals around the water rejection portion, and the blade portions are The drainage plates surround it. When the lower impeller rotates, the water rejection part will mix the air and water guided downward by the casing part and push it toward the blade parts, and the blade parts will cooperate with each other. Air and water are mixed and pushed toward the drainage boards. A downflush type aerator is suitable for floating on the water, and includes: a floating frame mechanism for floating on the water; a motor device installed on the floating frame mechanism; a shaft tube connected to the floating frame mechanism. The motor device extends downward into the water and can be driven by the motor device to rotate around its own axis. The shaft tube defines an air inlet channel that extends up and down and has a mouth facing downwards, and has an air inlet passage passing through its top end. and is connected with the air inlet channel and is used to set the air inlet above the water surface; at least one downflush component is installed on the shaft tube and is used to be placed under the water surface, and can be rotated in conjunction with the shaft tube to generate the flow from above. The flow of water flows downward; and an impeller assembly is installed on the shaft tube and is spaced below the downflow assembly. It can be rotated by the shaft tube to generate radial water flow. The impeller assembly includes a sleeve fixed on the shaft tube. an upper impeller, and a lower impeller installed below the upper impeller. The upper impeller has a tubular casing portion that is sleeved outside the shaft tube and communicates with the bottom opening of the air inlet passage, and a lower impeller that is sleeved on the shaft tube. The impeller part outside the casing part and assembled with the lower impeller, and A stirring part is connected to the inner circumferential surface of the casing part. When the impeller assembly is driven to rotate, the impeller part and the lower impeller will rotate to generate radially outward flowing water. The rotation of the stirring part will cause the air inlet channel to rotate. Produces a downward negative pressure suction force. The downflush aerator according to claim 9, wherein the stirring part has a connecting column coaxially arranged in the casing part, and a plurality of connecting columns spaced around the periphery of the connecting column and connected between the casing part and the casing part. The blades connect the opposing peripheral surfaces of the columns. The downflow aerator as claimed in claim 9, wherein the impeller part has a sheet-shaped top plate that is sleeved outside the casing part, and a plurality of radially extending and spaced apart around the axis of the top plate. A drainage board protruding from the bottom of the roof. The downflow aerator as claimed in claim 11, wherein the lower impeller has a sheet-shaped bottom plate that is stacked upward against the bottom edge of the drainage plates and installed and fixed on the top plate, and a protruding There is a water rejection part on the top surface of the bottom plate and located below the casing part, and the water rejection part is surrounded by the drainage plates. When the lower impeller rotates, the water rejection part will guide the casing part downward. The induced air is mixed with water and pushed radially outward toward the drainage plates. The downflush aerator according to claim 12, wherein the lower impeller also has a plurality of blade parts protruding from the top surface of the bottom plate and distributed at intervals around the water rejection part, and the blade parts are The drainage plates surround it. When the lower impeller rotates, the water rejection part will mix the air and water guided downward by the casing part and push it toward the blade parts, and the blade parts will cooperate with each other. Air and water are mixed and pushed toward the drainage boards.

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