CN114105284A

CN114105284A - Solar energy aeration machine

Info

Publication number: CN114105284A
Application number: CN202111259734.8A
Authority: CN
Inventors: 钱声源; 张晓东; 陈从建; 黎雅乐; 白阳; 江胜锋; 江蕾
Original assignee: Jiangsu Open University of Jiangsu City Vocational College
Current assignee: Jiangsu Open University of Jiangsu City Vocational College
Priority date: 2021-10-28
Filing date: 2021-10-28
Publication date: 2022-03-01
Anticipated expiration: 2041-10-28
Also published as: CN114105284B

Abstract

The invention provides a solar aerator which comprises a floating barrel, a floating body, an aerator body and a solar photovoltaic system, wherein the floating barrel is fixedly connected with the floating body; the aerator body comprises a host, a first guide cylinder, an impeller and a second guide cylinder, wherein the host and the impeller are arranged in the first guide cylinder, and the host is connected with the first guide cylinder; the second guide cylinder is arranged at the upper end in the first guide cylinder, the second guide cylinder is connected with the inner wall of the first guide cylinder, a gap is formed between the outer wall of the second guide cylinder and the inner wall of the first guide cylinder, and the second guide cylinder is positioned above the impeller; the inner wall of the first guide cylinder is provided with a pressurizing body, the pressurizing body is positioned between the first guide cylinder and the second guide cylinder, and a gap is formed between the pressurizing body and the outer wall of the second guide cylinder. The solar aerator provided by the invention can increase the mixing effect of the water body and the air and increase the dissolved oxygen of the water body.

Description

Solar energy aeration machine

Technical Field

The invention belongs to the technical field of environmental protection, and particularly relates to a solar aerator.

Background

Because the lake water body is seriously anoxic, the activity of aerobic microorganisms is inhibited, and the water quality is continuously deteriorated, an aerator is required to be used for carrying out aeration oxygenation on the water body which is seriously anoxic, so that the self-purification capacity of the water body is improved. The prior surface aerator has the following defects for oxygenating water:

the kuppe of aeration machine is hollow cylinder usually, and the kuppe has restricted the fluid to diffusion all around, and the fluid service range who sprays out receives the restriction, has reduced the mixed effect of the liquid that the aeration machine sprayed out and air, has reduced the dissolved oxygen volume in the water.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the solar aerator is provided, the mixing effect of the water body and the air is improved, and the dissolved oxygen of the water body is increased.

In order to solve the technical problems, the embodiment of the invention provides a solar aerator, which comprises a floating barrel, a floating body, an aerator body and a solar photovoltaic system, wherein the floating barrel is fixedly connected with the floating body; the aerator body comprises a host, a first guide cylinder, an impeller and a second guide cylinder, wherein the host and the impeller are arranged in the first guide cylinder, and the host is connected with the first guide cylinder; the impeller is connected with the main machine and is positioned above the main machine; the second guide cylinder is arranged at the upper end in the first guide cylinder, the second guide cylinder is connected with the inner wall of the first guide cylinder, a gap is formed between the outer wall of the second guide cylinder and the inner wall of the first guide cylinder, and the second guide cylinder is positioned above the impeller; the inner wall of the first guide cylinder is provided with a pressurizing body, the pressurizing body is positioned between the first guide cylinder and the second guide cylinder, and a gap is formed between the pressurizing body and the outer wall of the second guide cylinder.

As a further improvement of the embodiment of the invention, the pressurizing body is of an annular structure, and the lower part of the pressurizing body of the annular structure is provided with a diameter reducing section from bottom to top.

As a further improvement of the embodiment of the present invention, a plurality of arc-shaped through grooves are uniformly formed on the wall surface of the second guide cylinder at the same horizontal height along the circumferential direction of the second guide cylinder.

As a further improvement of the embodiment of the present invention, the arc-shaped through groove is located at a first position of the wall surface of the second guide cylinder, and the first position is a position where a distance between the outer wall of the second guide cylinder and the pressure body in the axial direction is the smallest.

As a further improvement of the embodiment of the present invention, the first guide cylinder and the second guide cylinder are coaxially disposed.

As a further improvement of the embodiment of the invention, the top end openings of the first guide cylinder and the second guide cylinder are the same in shape.

As a further improvement of the embodiment of the present invention, the openings at the top ends of the first guide cylinder and the second guide cylinder are both straight.

As a further improvement of the embodiment of the present invention, the top end of the second guide cylinder is flush with the top end of the first guide cylinder.

As a further improvement of the embodiment of the invention, the radial clearance between the outer wall of the second guide cylinder and the inner wall of the first guide cylinder is 5-50 mm.

As a further improvement of the embodiment of the present invention, the first guide cylinder and the second guide cylinder are both cylindrical thin-walled tubes.

Compared with the prior art, the technical scheme of the invention has the following beneficial effects: according to the solar aerator provided by the embodiment of the invention, the aerator body is provided with two flow channels, wherein one flow channel is formed by a gap between the first guide cylinder and the second guide cylinder, the other flow channel is formed in the second guide cylinder, and water flows out of the first flow channel and the second flow channel simultaneously under the action of the impeller and falls down after contacting with air. Through setting up two runners, increased the mixed effect of rivers and outside air, increased the dissolved oxygen volume of water. Through set up the pressure boost body on the inner wall at first draft tube, the pressure boost body is arranged in first runner, reduce the width of the first runner of pressure boost body department, receive the extrusion when making rivers in the first runner pass through the clearance between pressure boost body and the second draft tube, increase water pressure, thereby improve the jet height of the rivers that first runner flows, the time of the rivers that first runner flows and air contact is prolonged, improve the mixed effect of rivers and air, further increase the dissolved oxygen volume of water.

Drawings

FIG. 1 is a schematic plan view of a solar aerator according to an embodiment of the invention;

FIG. 2 is a schematic elevation view of an aerator body according to an embodiment of the invention;

fig. 3 is a schematic structural diagram of the connection between the upper part of the first guide shell and the second guide shell and the pressurizing body in fig. 2.

The figure shows that: the solar photovoltaic system comprises a buoy 1, a floating body 2, an aerator body 3, a host 31, a first guide cylinder 32, an impeller 33, a second guide cylinder 34, a narrow flow passage 341, a pressure boosting body 342, an arc-shaped through groove 343, a transition flow passage 344, a wide flow passage 345, outer ring water flow S1, inner ring water flow S2 and a solar photovoltaic system 4.

Detailed Description

The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, or uses. It should be understood that throughout the drawings, corresponding reference numerals indicate like or corresponding parts and features.

The embodiment of the invention provides a solar aerator, which comprises a floating barrel 1, a floating body 2, an aerator body 3 and a solar photovoltaic system 4, wherein the floating barrel 1 is fixedly connected with the floating body 2, the solar photovoltaic system 4 and the aerator body 3 are both connected with the floating body 2, and the aerator body 3 is connected with the solar photovoltaic system 4, as shown in figure 1. The float 1 is installed on the body 2 that floats, and the aerator body 3 assembly is on the body 2 that floats, still is provided with the solar photovoltaic system 4 that provides the electric energy for the aerator body 3 on the body 2 that floats. When the solar aerator works, the floating body 1 plays a role in changing the buoyancy of the whole device and adjusting the submerging depth of the solar aerator, and the floating body 2 floats on the water surface. The aerator body 3 and the solar photovoltaic system 4 move along with the floating body 2. Preferably, the number of the floating barrels 1 is 3-4, the floating barrels are uniformly distributed below the floating body 2 to form an equilateral triangle or a square, and the solar aerator can stably float in a water body.

In the embodiment of the present invention, as shown in fig. 2, the aerator body 3 includes a main body 31, a first guide cylinder 32, an impeller 33, and a second guide cylinder 34, and the first guide cylinder 32 is vertically installed. The main machine 31 and the impeller 33 are both arranged in the first guide shell 32, and the main machine 31 is connected with the first guide shell 32. The impeller 33 is connected with the main machine 31 and is positioned above the main machine 31, and the impeller 33 is positioned in an inner cavity at the upper part of the first guide cylinder 32. The second guide cylinder 34 is arranged at the upper end in the first guide cylinder 32, the second guide cylinder 34 is connected with the inner wall of the first guide cylinder 32, a gap is formed between the outer wall of the second guide cylinder 34 and the inner wall of the first guide cylinder 32, and the second guide cylinder 34 is positioned above the impeller 33. The inner wall of the first guide cylinder 32 is provided with a pressurizing body 342, the pressurizing body 342 is located between the first guide cylinder 32 and the second guide cylinder 34, and a gap is formed between the pressurizing body 342 and the outer wall of the second guide cylinder 34.

In the embodiment of the present invention, the aerator body 3 has two flow channels, one of the two flow channels is a first flow channel formed by a gap between the first guide cylinder 32 and the second guide cylinder 34, the first flow channel is an annular flow channel, and a water flow flowing out of the first flow channel forms the outer ring water flow S1. The other is a second flow passage formed in the second guide cylinder 34, the second flow passage is a cylindrical flow passage, and water flowing out of the second flow passage forms an inner-ring water flow S2. The water flows out of the first and second flow passages simultaneously by the action of the impeller 32, and falls after contacting the air. According to the embodiment of the invention, the two flow passages are arranged, so that the mixing effect of water flow and outside air is improved, and the dissolved oxygen of the water body is increased. In the embodiment of the invention, the pressurizing body 342 is arranged on the inner wall of the first guide cylinder 32, and the pressurizing body 342 is positioned in the first flow passage, so that the width of the first flow passage at the position where the pressurizing body is arranged is reduced, water flow in the first flow passage is extruded when passing through the gap between the pressurizing body 342 and the second guide cylinder 34, and the water flow pressure is increased, thereby improving the spraying height of the water flow flowing out of the first flow passage, prolonging the contact time of the water flow flowing out of the first flow passage and air, improving the mixing effect of the water flow and the air, and further increasing the dissolved oxygen of the water body. Because the water flow in the first flow channel is extruded by the pressurizing body 342 at the outlet, the inlet width of the first flow channel is smaller than that of the second flow channel, and the first flow channel is arranged above the edge of the impeller, the pressure of the water flow flowing out of the first flow channel is larger than that of the water flow flowing out of the second flow channel, and the spraying height of the water flow in the first flow channel is higher than that of the water flow in the second flow channel. Because first flow path is located the second flow path outside, the rivers that second flow path was sprayed reach the high back diffusion all around, are strikeed by the rivers that upwards first flow path was sprayed, and two strands of rivers are cut apart into more tiny drop of water to increase the area of contact of drop of water and air, absorb more air, improve the aeration effect.

As a preferred example, as shown in fig. 3, the pressurizing body 342 is a ring-shaped structure, and the bottom end surface of the pressurizing body 342 is a conical surface gradually inclined upward from outside to inside. The gap between the pressurizing body 342 and the second guide cylinder 34 is gradually reduced from bottom to top, so that the first flow channel is divided into a wide flow channel 345, a transition flow channel 344 and a narrow flow channel 341 which are sequentially communicated from bottom to top, the wide flow channel 345 is the part of the first flow channel located below the pressurizing body 342, the transition flow channel 344 is the part of the first flow channel located between the conical surface of the pressurizing body 342 and the second guide cylinder 34, and the narrow flow channel 341 is the part of the first flow channel located between the cylindrical side wall of the pressurizing body 342 and the second guide cylinder 34. The water flow in the first flow channel flows from bottom to top, and because the sectional area of the first flow channel is gradually reduced, the pressure of the water flow is gradually increased, when the water flow enters the narrow flow channel 341, the water flow pressure reaches the maximum value, namely, the water flow pressure entering the narrow flow channel is obviously increased, and meanwhile, the flow speed of the water flow in the first flow channel is increased. On one hand, the pressure and the flow speed of the water flow in the first flow channel are improved, so that the spraying height of the water flow in the first flow channel is improved, the contact area and time of the water flow and air are improved, and the oxygen dissolving effect is increased; on the other hand, the pressure of the water flow in the first flow channel is increased, the force of the outer ring water flow S1 impacting the inner ring water flow S2 is larger, the collision effect of the two water flows is effectively improved, water drops are made to be finer, the mixing effect of the water drops and air is improved, and the oxygenation effect of liquid is improved.

As a preferable example, the wall surface of the second guide cylinder 34 is provided with an arc through groove 343 along the circumferential direction. When the water flow in the first flow channel flows into the gap between the pressure increasing body 342 and the second guide cylinder 34, most of the water flow continues to flow upwards from the opening of the first flow channel, a small part of the water flow enters the second flow channel through the arc through groove 343, and the water flow flowing in from the arc through groove 343 extrudes the water flow in the second flow channel, so that the water flow in the second flow channel at the arc through groove 343 flows inwards. This process has three effects: firstly, rivers in the second runner receive the extrusion, and the extrusion direction extrudees to the center for the circumference from the second draft tube, and the extrusion force is at the circumferencial direction equipartition. On the horizontal cross section of the arc-shaped through groove 343 of the second guide cylinder, the water flow in the second flow channel is compressed and uniformly contracted for a certain distance towards the central axis direction, so that the water flow in the second guide cylinder generates a turbulent flow effect, the spraying height of the inner-ring water flow S2 is improved, the contact area and time between the inner-ring water flow and air are increased, and the oxygen dissolving effect of the liquid is improved; secondly, the water flow in the second flow channel is uniformly compressed, so that the water flow pressure at the arc-shaped through groove is increased, the spraying height of the water flow in the inner ring is further increased, the fluid is uniformly and symmetrically distributed in all directions after flowing out, the aeration effect is symmetrically and uniformly distributed around the aerator, the oxygenation effect of the water body of each part is ensured to be the same, and the self-purification capacity of the water body is effectively improved; thirdly, on the horizontal plane provided with the arc-shaped through groove, the water flow in the circumferential direction of the second flow channel is uniformly compressed inwards for a certain distance, and when the water flow continuously flows upwards to the opening of the second guide cylinder 34, the water flow is rapidly diffused all around, so that the spraying range of the water flow in the inner ring is expanded, and the contact area of the liquid and the air is also increased.

Further, the fluid entering the second channel from the arc-shaped through groove 343 presses the fluid in the second channel, and the radial pressing distance is determined by the height of the arc-shaped through groove 343. The higher the height of the arcuate channel 343, the greater the radial distance of inward extrusion.

Further, the arc-shaped through groove 343 is located at a first position on the wall surface of the second guide cylinder 34, where the first position is a position where the distance between the outer wall of the second guide cylinder 34 and the pressure boost body 342 in the axial direction is the smallest. The arc-shaped through groove 343 is located at the position where the distance between the second guide cylinder 34 and the pressure boost body 342 is minimum, that is, the position where the first flow channel is narrowest, and the water flow pressure in the first flow channel is the largest, the more obvious the effect of squeezing the water flow in the second flow channel through the arc-shaped through groove 343 is, the better the oxygenation effect of the water body is.

As a preferred example, the first guide cylinder 32 and the second guide cylinder 34 are coaxially disposed. The first flow channel and the second flow channel are coaxial, and the first flow channel uniformly surrounds the second flow channel, so that the first flow channel can be better divided into fine water drops when impacting the second flow channel, and more air is absorbed.

Preferably, the top openings of the first guide shell 32 and the second guide shell 34 have the same shape. The sectional area of the first flow channel formed between the first guide cylinder 32 and the second guide cylinder 34 is kept consistent from bottom to top, the water flow pressure in the first flow channel after passing through the pressurizing body 342 is effectively ensured, the spraying height of the water flow flowing out of the first flow channel is improved, the power of the water flow flowing out of the second flow channel is impacted, and the mixing effect of the water flow and the air is improved.

Further, the top openings of the first guide cylinder 32 and the second guide cylinder 34 are both straight. The top end opening of draft tube 32 and the top end opening of guide ring 34 are the straight mouth form for the rivers that first runner jetted are vertical upwards, thereby increase the jet height of first runner, prolong the rivers that first runner flows and the time of air contact, improve the mixed effect of rivers and air.

Preferably, the top end of the second guide cylinder 34 is flush with the top end of the first guide cylinder 32. In the first guide cylinder 32, the two water flows of the first flow passage and the second flow passage are ensured not to interact, and the aeration effect of the water flow flowing out of the first guide cylinder 32 is improved.

Preferably, the radial gap between the outer wall of the second guide cylinder 34 and the inner wall of the first guide cylinder 32 is 5mm to 50 mm. The gap between the second guide cylinder 34 and the first guide cylinder 32 is small, that is, the first flow passage is narrow, the water flow pressure of the first flow passage is greater than that of the second flow passage, and the water flow jet height of the first flow passage is greater. The rivers that the second runner sprays reach the certain height and then spread all around, are strikeed by the rivers that upwards spout of first runner, and tiny drop of water is cut apart into to two strands of rivers to increase the area of contact of drop of water and air, absorb more air, improve the aeration effect.

Preferably, the first guide cylinder 32 and the second guide cylinder 34 are both cylindrical thin-walled tubes. A first flow passage formed between the first guide cylinder 32 and the second guide cylinder 34 is annular, and a second flow passage formed in the second guide cylinder 34 is cylindrical. And the thin-wall pipe is adopted, so that the resistance of water flow is reduced, and the aeration effect is improved.

The solar aerator with the aerator body shown in fig. 2 of the preferred embodiment of the invention works as follows:

the assembled solar aerator is put into water, and the weight of the liquid in the buoy 1 is adjusted to enable the liquid level to be higher than the top end of the first guide cylinder 32 by a proper distance. The solar photovoltaic system 4 is connected, and the motor 31 of the aerator body 3 is started.

The impeller 33 rotates to drive the water flow in the first guide cylinder 32 to move upwards at a high speed. When the water flows to the upper portion of the first guide cylinder 32, the water simultaneously enters a first flow passage formed between the first guide cylinder 32 and the second guide cylinder 34 and a second flow passage formed in the second guide cylinder 34. The water flow flowing out of the first flow passage is directed vertically upwards to form an outer ring water flow S1. The water flow flowing out of the second flow passage is cylindrical, and forms an inner ring water flow S2. The outer ring water flow and the inner ring water flow fall after contacting with the air, so that the mixing effect of the water flow and the outside air is improved, and the dissolved oxygen of the water body is increased. The rivers in the second runner receive the extrusion when passing through the clearance between pressure boost 342 and the second draft tube 34, increase pressure to improve outer lane rivers S1' S jet height, the time of extension outer lane rivers and air contact improves the mixed effect of rivers and air, further increases the dissolved oxygen volume of water. Since the water flow in the first flow passage is squeezed by the pressurizing body 342, the inlet width of the first flow passage is smaller than the width of the second flow passage, and the first flow passage is located above the edge of the impeller, the outer ring water flow pressure is greater than the inner ring water flow pressure, and the jet height of the outer ring water flow is higher than that of the inner ring water flow. Outer lane rivers are located the inner circle rivers outside, and inner circle rivers reach the altitude and spread all around, are strikeed by ascending outer lane rivers, and more tiny drop of water is cut apart into to two strands of rivers to increase the area of contact of drop of water and air, absorb more air, improve the aeration effect.

When the water flow in the first flow passage flows from bottom to top, the sectional area of the first flow passage is gradually reduced, the pressure of the water flow is gradually increased, and when the water flow enters the narrow flow passage 341, the pressure of the water flow reaches the maximum value. On one hand, the pressure and the flow speed of the water flow in the first flow channel are improved, so that the spraying height of the water flow on the outer ring is improved, the contact area and time of the water flow and air are improved, and the dissolved oxygen effect is increased; on the other hand, the pressure of the water flow in the first flow channel is increased, the force of the outer ring water flow S1 impacting the inner ring water flow S2 is larger, the collision effect of the two water flows is effectively improved, water drops are made to be finer, the mixing effect of the water drops and air is improved, and the oxygenation effect of liquid is improved.

When the water in the first flow passage flows into the gap between the pressure body 342 and the second guide cylinder 34 and reaches the narrowest position (i.e., in the narrow flow passage 341), most of the water continues to flow upward from the opening of the first flow passage, and a small part of the water enters the second flow passage through the arc-shaped through groove 343 on the second guide cylinder 34. The water flowing in from the arc through groove 343 presses the water in the second flow passage, so that the water in the second flow passage at the arc through groove 343 flows toward the center of the second guide shell 34. On the first hand, the water flow in the second flow channel is extruded, the extrusion direction is from the circumference of the second guide shell to the center, and the extrusion force is uniformly distributed in the circumferential direction. On the horizontal cross section that the second draft tube set up arc through groove 343, rivers in the second runner are compressed, evenly shrink certain distance to the center pin direction, make rivers in the second draft tube produce turbulent flow effect to improve inner circle rivers S2' S jet height, increase inner circle rivers and air area of contact and time, improve the dissolved oxygen effect of liquid. In the second aspect, the water flow in the second flow channel is uniformly compressed, the water flow pressure at the arc-shaped through groove is increased, the spraying height of the water flow in the inner ring is further increased, the uniform symmetry of the fluid in all directions after flowing out is ensured, the aeration effect is symmetrical and uniform around the aerator, the oxygenation effect of the water body of each part is ensured to be the same, and the self-purification capacity of the water body is effectively improved. In the third aspect, on the horizontal plane provided with the arc-shaped through groove, the water flow in the circumferential direction of the second flow channel is uniformly compressed inwards for a certain distance, and when the water flow continues to flow upwards to the opening of the second guide cylinder 34, the water flow is rapidly diffused all around, so that the spraying range of the water flow in the inner ring is expanded, and the contact area between the liquid and the air is also increased.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to further illustrate the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, which is also intended to be covered by the appended claims. The scope of the invention is defined by the claims and their equivalents.

Claims

1. A solar aerator is characterized by comprising a floating drum (1), a floating body (2), an aerator body (3) and a solar photovoltaic system (4), wherein the floating drum (1) is fixedly connected with the floating body (2), the solar photovoltaic system (4) and the aerator body (3) are both connected with the floating body (2), and the aerator body (3) is connected with the solar photovoltaic system (4); the aerator body (3) comprises a main machine (31), a first guide cylinder (32), an impeller (33) and a second guide cylinder (34), wherein the main machine (31) and the impeller (33) are both arranged in the first guide cylinder (32), and the main machine (31) is connected with the first guide cylinder (32); the impeller (33) is connected with the main machine (31) and is positioned above the main machine (31); the second guide cylinder (34) is arranged at the upper end in the first guide cylinder (32), the second guide cylinder (34) is connected with the inner wall of the first guide cylinder (32), a gap is formed between the outer wall of the second guide cylinder (34) and the inner wall of the first guide cylinder (32), and the second guide cylinder (34) is positioned above the impeller (33); the inner wall of the first guide shell (32) is provided with a pressurizing body (342), the pressurizing body (342) is positioned between the first guide shell (32) and the second guide shell (34), and a gap is formed between the pressurizing body (342) and the outer wall of the second guide shell (34).

2. The solar aerator as claimed in claim 1, wherein the pressurizing body (342) is of a ring-shaped structure, and the lower part of the pressurizing body (342) of the ring-shaped structure is provided with a diameter reducing section from bottom to top.

3. The solar energy aerator as claimed in claim 1, wherein a plurality of arc-shaped through grooves (343) are uniformly arranged on the same horizontal height of the wall surface of the second guide cylinder (34) along the circumferential direction of the second guide cylinder.

4. The solar aerator according to claim 3, wherein the curved through-slot (343) is located at a first position of the wall surface of the second guide cylinder (34), the first position being a position where the distance between the outer wall of the second guide cylinder (34) and the pressure body (342) in the axial direction is smallest.

5. The solar aerator of claim 1, wherein the first draft tube (32) is coaxially disposed with the second draft tube (34).

6. The solar aerator of claim 1, wherein the top openings of the first and second draft tubes (32, 34) are the same shape.

7. The solar aerator as claimed in claim 6, wherein the top openings of the first and second guide cylinders (32, 34) are straight.

8. The solar aerator of claim 1, wherein the top end of the second draft tube (34) is flush with the top end of the first draft tube (32).

9. The solar aerator as claimed in claim 1, wherein the radial clearance between the outer wall of the second draft tube (34) and the inner wall of the first draft tube (32) is 5mm to 50 mm.

10. The solar aerator of claim 1, wherein the first and second draft tubes (32, 34) are both cylindrical, thin walled tubes.