CN117142672B - Efficient diving aeration method - Google Patents
Efficient diving aeration method Download PDFInfo
- Publication number
- CN117142672B CN117142672B CN202311349996.2A CN202311349996A CN117142672B CN 117142672 B CN117142672 B CN 117142672B CN 202311349996 A CN202311349996 A CN 202311349996A CN 117142672 B CN117142672 B CN 117142672B
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- water
- mixed liquid
- steam
- water mixed
- aeration chamber
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- 238000005273 aeration Methods 0.000 title claims abstract description 180
- 238000000034 method Methods 0.000 title claims abstract description 40
- 230000009189 diving Effects 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 325
- 239000007788 liquid Substances 0.000 claims abstract description 218
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 72
- 239000001301 oxygen Substances 0.000 claims abstract description 72
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 72
- 230000000694 effects Effects 0.000 claims abstract description 49
- 238000009792 diffusion process Methods 0.000 claims description 59
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 55
- 239000000203 mixture Substances 0.000 claims description 13
- 238000005276 aerator Methods 0.000 claims description 8
- 239000007789 gas Substances 0.000 claims description 5
- 230000003584 silencer Effects 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims 1
- 239000011259 mixed solution Substances 0.000 abstract description 25
- 238000010276 construction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/22—O2
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
The invention provides a high-efficiency diving aeration method, which comprises the following steps: step 10, starting a submerged electric pump, rotating an impeller to generate negative pressure in an aeration chamber, continuously enabling external water to enter the aeration chamber from a water inlet at the top end, sucking air above the liquid level of the external water into an air inlet pipe, and enabling the air to enter the aeration chamber from the upper part of the aeration chamber; the method comprises the steps that in the downward flowing process, the entered water is premixed with air to form premixed steam-water mixed solution, and the premixed steam-water mixed solution flows in an aeration chamber to form first steam-water mixed solution; step 30, enabling the steam-water mixed liquid to flow tangentially along the circumference of the impeller under the action of the impeller, and enabling the guide vane plates to cut and split the steam-water mixed liquid to form finer water drops and bubbles; the multiple strands of steam-water mixed liquid respectively flow to the liquid outlet along the guide vane plates in the multiple flow channels, and flow into the external water body in the circumferential direction of the aeration chamber from the liquid outlet of the circumferential ring of the aeration chamber. The high-efficiency diving aeration method provided by the invention improves the aeration effect and improves the dissolved oxygen of the water body.
Description
Technical Field
The invention belongs to the technical field of environmental protection, and particularly relates to a high-efficiency diving aeration method.
Background
The submersible centrifugal aerator is widely applied to sewage treatment and aeration oxygenation of water bodies in rivers and lakes, and the impeller rotating at high speed forms negative pressure in the mixing disc, so that air on the water surface sequentially passes through the air inlet pipe and the air inlet disc and then enters the mixing disc to form steam-water mixed liquid, and the steam-water mixed liquid is sprayed out from the peripheral flow channels at high speed to oxygenate the water bodies. However, the existing submersible centrifugal aerator is subject to the following limitations: 1. the vapor-water mixed solution can not generate very small water drops and bubbles, and has poor dissolved oxygen effect. 2. The aerator is generally provided with 6 to 8 flow channels, a larger interval is arranged between adjacent flow channels, and the aeration effect between the flow channels is lower than that in the outlet direction of the flow channels. 3. After the vapor-water mixed liquid is sprayed out of the flow channel, the vapor-water mixed liquid moves upwards due to the small density of the vapor-water mixed liquid, and the oxygen dissolving effect of the sludge at the bottom of the tank is affected.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the high-efficiency diving aeration method is provided, the aeration effect is improved, and the dissolved oxygen of the water body is improved.
In order to solve the technical problems, the embodiment of the invention provides a high-efficiency diving aeration method, which comprises the following steps:
step 10, starting a submerged electric pump, rotating an impeller to generate negative pressure in an aeration chamber, continuously enabling external water to enter the aeration chamber from a water inlet at the top end, sucking air above the liquid level of the external water into an air inlet pipe, and enabling the air to enter the aeration chamber from the upper part of the aeration chamber; the water entering from the top end is premixed with air entering from the upper part in the downward flowing process to form premixed steam-water mixed liquid, and the premixed steam-water mixed liquid flows in the aeration chamber, so that the air continuously enters into the aeration chamber through the air inlet pipe, the air quantity entering into the aeration chamber is increased, and a first steam-water mixed liquid is formed;
step 30, enabling the steam-water mixed liquid to flow tangentially along the circumference of the impeller under the action of the impeller, enabling a plurality of guide vanes to divide the inside of the aeration chamber along the circumference of the impeller to form a plurality of flow channels which are connected in sequence, enabling the guide vanes to cut and split the steam-water mixed liquid to form finer water drops and bubbles, enabling more oxygen to be dissolved in water, and improving the dissolved oxygen amount of the water body; the multiple strands of steam-water mixed liquid respectively flow to the liquid outlets along the guide vane plates in the multiple flow channels, and flow into the external water body in the circumferential direction of the aeration chamber from the liquid outlet of the circumferential ring of the aeration chamber, so that the balance of the aeration chamber outside Zhou Baoqi is ensured.
In step 30, when the steam-water mixed liquid flows along the guide vane plate to the liquid outlet, the steam-water mixed liquid moves relatively to the stationary guide vane plate, and as the steam-water mixed liquid moves tangentially, the first cutting grooves on the two sides of the same guide vane plate respectively cut two adjacent steam-water mixed liquids flowing outwards, so that the steam-water mixed liquid is cut into finer and finer water drops and bubbles, the contact area of the bubbles and the water drops is enlarged, and more oxygen is dissolved in water; and the first cutting grooves cut the steam-water mixed liquid at different heights in the circumferential direction, so that the oxygen dissolving effect of the steam-water mixed liquid in the circumferential direction and the height direction in the aeration chamber is improved, and the oxygen dissolving effect of the external water body in the circumferential direction and the height direction is improved after the steam-water mixed liquid flows out.
As a further improvement of the embodiment of the present invention, in the step 30, when the vapor-water mixed liquid flows through the guide vane but does not reach the liquid outlet, part of the vapor-water mixed liquid flows obliquely upward and outward along the upper end surface of the adjusting ring, so that the vapor-water mixed liquid continues to flow obliquely upward under the inertia effect after flowing out from the liquid outlet, so as to enhance the oxygen dissolving effect of the upper part of the external water body; and part of the steam-water mixed liquid flows downwards and outwards along the lower end face of the adjusting ring in an inclined way, so that the steam-water mixed liquid flows downwards continuously under the inertia effect after flowing out from the liquid outlet, and the dissolved oxygen effect of the bottom of the tank is enhanced.
As a further improvement of the embodiment of the invention, in the process that the vapor-water mixed liquid flows upwards and outwards along the upper end face of the adjusting ring in an inclined way, the second cutting groove on the upper end face cuts the vapor-water mixed liquid, so that the vapor-water mixed liquid is cut into finer and finer water drops and bubbles, the contact area of air and the water drops is enlarged, and more oxygen is dissolved in water; in the process that the steam-water mixed liquid flows downwards and outwards along the lower end face of the adjusting ring in an inclined way, the second cutting groove of the lower end face cuts the steam-water mixed liquid, the steam-water mixed liquid is cut into finer and finer water drops and bubbles, the contact area of air and the water drops is enlarged, and more oxygen is dissolved in water.
As a further improvement of the embodiment of the present invention, between the step 10 and the step 30, there is further included:
step 21, the second blade rotates in the air storage groove, the premixed steam-water mixed liquid flowing into the air storage groove is brought into a diffusion flow channel in the hub, and the premixed steam-water mixed liquid is injected into an aeration chamber from an outlet of the diffusion flow channel; the premixed vapor-water mixed liquid ejected from the diffusion flow passage collides with the first vapor-water mixed liquid in the aeration chamber, is cut and mutually fused to form finer and finer water drops and bubbles, so that oxygen in the first vapor-water mixed liquid and the premixed vapor-water mixed liquid is better dissolved in water to form a third vapor-water mixed liquid.
As a further improvement of the embodiment of the present invention, between the step 10 and the step 30, there is further included:
step 22, generating negative pressure in the air storage groove, enabling part of air in the air inlet pipe to flow into the air storage groove, improving the air content in the premixed vapor-water mixed liquid in the air storage groove, enabling the premixed vapor-water mixed liquid to flow into the diffusion flow channel under the action of the second blade, forming second vapor-water mixed liquid, and enabling the second vapor-water mixed liquid to be injected into the aeration chamber from the outlet of the diffusion flow channel; the second vapor-water mixed liquid ejected from the diffusion flow passage collides with the first vapor-water mixed liquid in the aeration chamber, is cut and mutually fused to form finer and finer water drops and bubbles, so that oxygen in the first vapor-water mixed liquid and the second vapor-water mixed liquid is better dissolved in water to form fourth vapor-water mixed liquid.
As a further improvement of the embodiment of the present invention, the axis of the diffusion flow channel is arranged obliquely upward from the inlet to the outlet; when the steam-water mixed liquid in the diffusion flow channel is sprayed out from the outlet of the diffusion flow channel, the steam-water mixed liquid obliquely upwards and outwards flows, and the oxygen dissolving effect of the upper part of the aeration chamber is enhanced, so that the oxygen dissolving effect of the upper part of the aeration chamber is enhanced.
As a further improvement of the embodiment of the present invention, the axis of the diffusion flow channel is arranged obliquely downward from the inlet to the outlet; when the steam-water mixed liquid in the diffusion flow channel is sprayed out from the outlet of the diffusion flow channel, the steam-water mixed liquid flows downwards and outwards in an inclined way, and the oxygen dissolving effect of the lower part in the aeration chamber is enhanced, so that the oxygen dissolving effect of the bottom of the tank is enhanced.
As a further improvement of the embodiment of the invention, in the flowing process of the steam-water mixed liquid in the aeration chamber, the mixed liquid in the aeration chamber is cut by the third cutting grooves on the lower surface of the upper cover plate and the upper surface of the lower cover plate, so that finer and finer water drops and bubbles are formed, more oxygen is dissolved in the water, and the aeration effect is improved.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects: according to the efficient diving aeration method provided by the invention, under the action of the impeller, external water enters the aeration chamber from the water inlet at the top end of the aeration chamber, is premixed with air entering the aeration chamber, and the steam-water mixed liquid containing a certain amount of air formed by premixing is used as a new medium and then is subjected to a centrifugal aeration process, so that the air quantity entering the aeration chamber is increased, and the defect that water enters the aeration chamber from the bottom to enter the upper part to directly perform aeration without being premixed with the air in the prior art is overcome, so that the aeration quantity is increased. Meanwhile, the plurality of guide blades divide the aeration chamber along the circumferential direction of the impeller to form a plurality of flow passages which are connected in sequence, the interval between the outlets of the adjacent flow passages is very small, and the circumferential aeration balance outside the aeration chamber is fully ensured. When the steam-water mixed liquid in the aeration cavity flows out from the circumferential opening at a high speed, the guide vane plates cut the steam-water mixed liquid to form finer water drops and bubbles, so that more oxygen is dissolved in water, the dissolved oxygen of the water body is improved, and the aeration effect is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort to a person of ordinary skill in the art.
FIG. 1 is a schematic view of a submersible aerator according to an embodiment of the present invention;
FIG. 2 is a schematic view of the structure of the aeration cell in FIG. 1;
FIG. 3 is a schematic view of the adjusting ring of FIG. 2;
FIG. 4 is a schematic view of the impeller of FIG. 1;
FIG. 5 is a schematic view showing an assembled structure of the aeration chamber, the air inlet pipe and the impeller in FIG. 1;
FIG. 6 is a schematic view of a preferred construction of a impeller in accordance with an embodiment of the present invention;
fig. 7 is a schematic view of another preferred construction of the impeller in an embodiment of the present invention.
The drawings are as follows: the submersible electric pump 2, the aeration chamber 3, the impeller 4, the air inlet pipe 5, the upper cover plate 31, the lower cover plate 32, the guide vane plate 33, the adjusting ring 34, the water inlet 35, the liquid outlet 36, the upper end surface 341, the lower end surface 342, the second cutting groove 343, the hub 41, the first vane 42, the shaft hole 43, the air storage groove 44, the diffusion flow passage 45, the second vane 46, the air outlet 51 and the silencer 6.
Detailed Description
The technical scheme of the invention is described in detail below with reference to the accompanying drawings.
The embodiment of the invention provides a high-efficiency diving aeration method, which adopts a diving aerator. As shown in fig. 1, the submersible pump comprises a base 1, a submersible pump 2, an aeration chamber 3 and an air inlet pipe 5 from bottom to top, wherein the submersible pump 2 is arranged on the base 1. The submerged motor pump 2 and the base 1 can be placed into the bottom of the pool by the self weight, and the submerged motor pump 2 and the base 1 can be fixed on the concrete foundation of the bottom of the pool. An impeller 4 is arranged in the aeration chamber 3, and the impeller 4 is connected with the submersible electric pump 2. One end of the air inlet pipe 5 is provided with a silencer 6 and is positioned above the liquid level of the water body, and the other end of the air inlet pipe extends into the aeration chamber 3 and is positioned above the impeller 4.
The aeration chamber 3 in this embodiment includes an upper cover plate 31, a lower cover plate 32, and a plurality of guide vanes 33, as shown in fig. 2. The upper cover plate 31 and the lower cover plate 32 are hollow revolution bodies with horn mouths formed by rotating concave curves around a central shaft, and openings are formed in the centers of the upper cover plate 31 and the lower cover plate 32. The opening of the upper cover plate 31 is larger than the opening of the lower cover plate 32, and the opening of the lower cover plate 32 is matched with the output shaft of the submersible electric pump so as to enable the output shaft of the submersible electric pump to pass through. The upper cover plate 31 and the lower cover plate 32 are arranged at intervals up and down and are connected through a plurality of guide blades 33, and an aeration cavity with a water inlet 35 positioned at the top end and a liquid outlet 36 positioned at a circle of circumference is formed between the upper cover plate 31 and the lower cover plate 32. The output shaft of the submersible pump extends into the aeration chamber through the opening of the lower cover plate 32 and is connected with the impeller 4. The lower cover plate 32 is fixed to the casing of the submersible pump. The air inlet pipe 5 is fixedly connected with the upper cover plate 31.
The embodiment provides a high-efficiency diving aeration method, which comprises the following steps:
step 10, the submerged electric pump 2 is started, the impeller 4 rotates, negative pressure is generated in the aeration chamber 3, external water continuously enters the aeration chamber 3 from a water inlet at the top end, air above the liquid level of the external water is sucked into the air inlet pipe 5, and the air enters the aeration chamber 3 from the upper part in the aeration chamber 3. In the downward flowing process, the water entering from the top end is premixed with the air entering from the upper part to form a premixed steam-water mixed solution, and the premixed steam-water mixed solution flows in the aeration chamber as a new fluid medium, so that the air continuously enters into the aeration chamber through the air inlet pipe, the air quantity entering into the aeration chamber is increased, and a first steam-water mixed solution is formed.
Step 30, the steam-water mixed liquid tangentially flows along the circumference of the impeller under the action of the impeller, a plurality of flow passages which are sequentially connected are formed in the aeration chamber by separating the steam-water mixed liquid along the circumference of the impeller, and the guide vanes are used for cutting and dividing the steam-water mixed liquid to form finer water drops and bubbles, so that more oxygen is dissolved in water, and the dissolved oxygen amount of the water body is improved. The multiple strands of steam-water mixed liquid flow to the liquid outlet along the guide blade plate 33 in the multiple flow channels respectively, and flow into the external water body in the circumferential direction of the aeration chamber from the liquid outlet of the circumferential ring of the aeration chamber, so that the balance of the aeration chamber outside Zhou Baoqi is ensured.
In the submerged aeration method of the above embodiment, the aeration chamber 3 connects the upper cover plate 31 and the lower cover plate 32 by the guide vane 33, and the opening of the aeration chamber formed between the upper cover plate 31 and the lower cover plate 32 is located at a circle. Under the action of the impeller, external water continuously enters the aeration chamber from the water inlet at the top end of the aeration chamber 3, the impeller rotating at high speed generates negative pressure in the aeration chamber, and air enters the aeration chamber through the air inlet pipe under the action of atmospheric pressure. The water and air entering from the water inlet at the top end of the aeration chamber are premixed, the mixed steam-water solution containing a certain amount of air formed by premixing flows in the direction of the impeller in the aeration chamber as a new medium, and then the centrifugal aeration process is carried out, so that the air quantity entering the aeration chamber is effectively improved. The flow of the steam-water mixed liquid is guided by the guide vane plates to flow to the liquid outlet 36, so that the steam-water mixed liquid is prevented from continuously rotating to flow to lose power, the sufficient power is ensured to flow to the outside of the aeration chamber, the moving path of the steam-water mixed liquid in the external water body is prolonged, and the aeration effect is improved. Meanwhile, the plurality of guide blades 33 divide the aeration chamber along the circumferential direction of the impeller to form a plurality of flow passages which are connected in sequence to split the steam-water mixed liquid, the interval between the outlets of the adjacent flow passages is small, the steam-water mixed liquid is sprayed out from one circle of the circumferential direction of the aeration chamber, and the uniformity of one circle of aeration outside the aeration chamber can be fully ensured. When the vapor-water mixed liquid in the aeration chamber flows out from the liquid outlet at a high speed, the guide blade plate 33 cuts the vapor-water mixed liquid to form finer water drops and bubbles, so that more oxygen is dissolved in the water, and the dissolved oxygen efficiency is improved.
Preferably, a plurality of guide vanes 33 are disposed between the upper cover plate 31 and the lower cover plate 32 at uniform intervals along the circumference of the impeller 4, and each guide vane 33 is parallel to the impeller tangential line. The steam-water mixed liquid in the aeration cavity tangentially flows along the circumference of the impeller under the action of the impeller, flows towards the liquid outlet along the direction of the guide vane plate 33, is tangentially sprayed into external water bodies from the circumference of the aeration chamber, and the guide vane plate 33 is parallel to the tangent line of the impeller, so that the influence on the flow speed of the steam-water mixed liquid is reduced, the moving path of the steam-water mixed liquid after being sprayed into the external water bodies is ensured, and the aeration effect is improved.
As a preferred example, both side surfaces of the guide vane 33 are provided with first cutting grooves vertically arranged. The first cutting groove is a V-shaped groove with a certain depth, and the V-shaped groove is vertically arranged from the top end to the bottom end of the guide vane plate.
In step 30, when the soda mixed liquid flows along the guide vane 33 to the liquid outlet, the soda mixed liquid moves relatively to the stationary guide vane, and because the soda mixed liquid moves tangentially, the first cutting grooves on both sides of the same guide vane respectively cut two soda mixed liquids flowing outwards adjacently, so that the soda mixed liquid is cut into finer and finer water drops and bubbles, the contact area of the bubbles and the water drops is enlarged, and more oxygen is dissolved in water. And the first cutting grooves cut the steam-water mixed liquid at different heights in the circumferential direction, so that the oxygen dissolving effect of the inner circumference and the height direction of the aeration chamber 3 is improved, and the oxygen dissolving effect of the external water body in the circumferential direction and the height direction is improved after the steam-water mixed liquid flows out.
As a preferred example, the aeration chamber 3 further includes an annular adjusting ring 34, the adjusting ring 34 is annular, the adjusting ring 34 is disposed at the outer side of the guide vane plate 33, and the inner wall of the adjusting ring 34 is fixedly connected with the outer side surface of the guide vane plate 33. As shown in fig. 3, the upper end surface 341 of the adjusting ring 34 extends obliquely upward from inside to outside, and the lower end surface 342 of the adjusting ring 34 extends obliquely downward from inside to outside, i.e., both the upper end surface and the lower end surface of the adjusting ring 34 are tapered surfaces. The inclination angles of the upper end face and the lower end face of the adjusting ring are determined according to the water depth and the dissolved oxygen requirement of the pool bottom.
In step 30, when the steam-water mixture flows through the guide blade but does not reach the liquid outlet, part of the steam-water mixture flows obliquely upwards and outwards along the upper end face of the adjusting ring 34, so that the steam-water mixture continues to flow obliquely upwards under the inertia effect after flowing out from the liquid outlet, and the oxygen dissolving effect of the upper part of the external water body is enhanced. And part of the soda water mixed liquid flows downwards and outwards along the lower end surface of the adjusting ring 34 in an inclined way, so that the soda water mixed liquid continues to flow downwards in an inclined way under the inertia effect after flowing out from the liquid outlet, and the dissolved oxygen effect of the bottom of the tank is enhanced.
In the method of the embodiment, the adjusting ring 34 has an upper end face and a lower end face with a certain inclination angle, so that the steam-water mixed liquid is sprayed upwards and downwards in an inclined manner respectively, and the oxygen dissolving effect of the upper part of the external water body and the pool bottom is enhanced. Because the density of the soda water mixed solution is smaller, the main flowing direction is upward, the inclined upper end face strengthens the upward flowing of the soda water mixed solution, and the soda water mixed solution is suitable for occasions with larger water depth, and the inclined lower end face enables a part of soda water mixed solution to move obliquely downwards, so that the oxygen dissolving effect of activated sludge at the bottom of a tank is strengthened under the inertia effect.
As a preferred example, the upper end surface 341 and the lower end surface 342 of the adjusting ring 34 are each provided with a second cutting groove 343 which is annularly arranged. In the process that the soda mixed liquid flows upwards and outwards along the upper end face of the adjusting ring 34 in an inclined way, the second cutting groove 343 of the upper end face cuts the soda mixed liquid, the soda mixed liquid is cut into finer and finer water drops and bubbles, the contact area of air and the water drops is enlarged, and more oxygen is dissolved in water. In the process that the soda mixed liquid flows downwards and outwards along the lower end face of the adjusting ring 34 in an inclined way, the second cutting groove 343 of the lower end face cuts the soda mixed liquid, so that the soda mixed liquid is cut into finer and finer water drops and bubbles, the contact area of air and the water drops is enlarged, and more oxygen is dissolved in water.
In the method of this embodiment, since the upper end surface and the lower end surface of the adjusting ring are gradually inclined upwards and downwards from inside to outside, the second cutting groove 343 in an inclined state strengthens the cutting of the steam-water mixed liquid flowing outwards while guiding the upward and downward movement of the steam-water mixed liquid, cuts the steam-water mixed liquid into finer and finer water droplets and bubbles, enlarges the contact area of air and water droplets, and makes more oxygen dissolve in water. Since the second cutting grooves 343 are provided at the upper and lower end surfaces of the adjusting ring, that is, the steam-water mixture after circumferential cutting is cut again in the circumferential direction of the upper and lower end surfaces of the adjusting ring in the horizontal direction (approximately), so as to enhance the oxygen dissolving effect of the adjusting ring in the circumferential direction, thereby cutting water droplets and air bubbles in multiple directions to form a larger, finer and finer water droplets and air bubbles. Under the guidance of the conical surface, the vapor-water mixed liquid with higher dissolved oxygen moves upwards in an inclined way or downwards in an inclined way, so that the moving path is increased, and the dissolved oxygen effect of the water body is improved.
As a preferred example, the impeller 4 in the present embodiment includes a hub 41 and first blades 42, as shown in fig. 4, the hub 41 has a cylindrical shape, and 3 to 5 first blades 42 are provided at the tip of the hub 41 to form a centrifugal impeller. The center of the bottom end of the hub 41 is provided with a shaft hole 43 for connecting with the submersible electric pump 2, and the center of the top end of the hub 41 is provided with a gas storage groove 44. The air storage groove 44 has a diameter equal to or larger than the diameter of the shaft hole 43 and smaller than the inner diameter of the first vane 42. As shown in fig. 5. The shaft hole 43 is communicated with the air storage groove 44, and a motor shaft of the submersible electric pump 2 penetrates through the shaft hole 43 and stretches into the air storage groove 44 to be connected with the second blade 46 positioned in the air storage groove 44. The submersible electric pump 2 operates to drive the hub 41 and the second blades 46 to rotate synchronously. The hub 41 is provided with a diffusion flow passage 45, an inlet of the diffusion flow passage 45 is communicated with the air storage groove 44, and an outlet of the diffusion flow passage 45 is positioned on the outer wall of the hub 41 and is communicated with the aeration chamber 3. The number of the diffusion channels 45 is 3-6, and the diffusion channels are uniformly distributed on the same cross section of the hub 41.
In the first scheme, the bottom end of the air inlet pipe is positioned above the notch of the air storage groove.
Further included between step 10 and step 30 is:
in step 21, the second blades 46 rotate in the air storage groove 44 at a high speed, the premixed gas-water mixed liquid flowing into the air storage groove 44 is brought into the diffusion flow channel 45 in the hub, and the premixed gas-water mixed liquid is injected into the aeration chamber 3 from the outlet of the diffusion flow channel 45 at a high speed, so that aeration is realized. The premixed soda liquid ejected from the diffusion flow passage 45 collides with the first soda liquid in the aeration chamber 3, is cut and mutually fused to form finer and finer water drops and bubbles, so that oxygen in the first soda liquid and the premixed soda liquid is better dissolved in water to form a third soda liquid.
According to the submersible aeration method, inflow water at the top end of an aeration chamber is premixed with air, part of the formed premixed steam-water mixed solution is subjected to centrifugal aeration in the aeration chamber, more oxygen is absorbed into the water and dissolved in the water, and a first steam-water mixed solution is formed; and part of the premixed steam-water mixed liquid enters a diffusion flow passage of the hub, is injected into an aeration chamber after being pressurized and accelerated, and interacts with the first steam-water mixed liquid generated by centrifugal aeration, so that the premixed steam-water mixed liquid and oxygen in the first steam-water mixed liquid are better dissolved in water, a third steam-water mixed liquid is formed and sprayed into an external water body, and the aeration effect and the dissolved oxygen efficiency are improved.
In the second alternative, the outer diameter of the air inlet pipe 5 is smaller than the diameter of the air storage groove 44. The lower part of the air intake pipe 5 is located in the air storage groove 44, as shown in fig. 5, and the air intake pipe is arranged coaxially with the air storage groove. The difference between the outer diameter of the air intake pipe 5 and the inner diameter of the air storage groove 44 is 4 to 16mm, i.e., the gap width between the air intake pipe and the air storage groove 44 in the radial direction is 2 to 8mm.
Further included between step 10 and step 30 is:
step 21, the second blade 46 rotates at a high speed, negative pressure is generated in the air storage groove 44, so that part of air in the air inlet pipe flows into the air storage groove 44, the air entering into the aeration chamber is increased (the aeration quantity is increased), the air content in the premixed soda mixed liquid in the air storage groove is improved, then the premixed soda mixed liquid flows into the diffusion flow channel 45 under the action of the second blade 46, the second soda mixed liquid is formed, and the second soda mixed liquid is injected into the aeration chamber 3 from the outlet of the diffusion flow channel 45 at a high speed, so that aeration is realized. The second vapor-water mixed liquid ejected from the diffusion flow passage 45 collides with the first vapor-water mixed liquid in the aeration chamber 3, is cut and mutually fused to form finer and finer water drops and bubbles, so that oxygen in the first vapor-water mixed liquid and the second vapor-water mixed liquid is better dissolved in water to form fourth vapor-water mixed liquid.
According to the submersible aeration method, inflow water at the top end of the aeration chamber is premixed with air, a part of the formed premixed soda water mixed solution is centrifugally aerated in the aeration chamber to generate a first soda water mixed solution, the other part of the formed premixed soda water mixed solution enters the air storage groove to increase the air content in the premixed soda water mixed solution, the premixed soda water mixed solution further generates a second soda water mixed solution in the diffusion flow channel, aeration mixing is carried out for multiple times in the aeration chamber, more oxygen can be sucked into and dissolved in water, and the second soda water mixed solution interacts with the first soda water mixed solution, so that oxygen in the first soda water mixed solution and oxygen in the second soda water mixed solution are better dissolved in the first soda water mixed solution, and a fourth soda water mixed solution is formed to be sprayed into external water bodies to improve aeration effect and dissolved oxygen efficiency.
As a preferred example, the diffusion flow channel 45 is a conical through hole, the inlet of the diffusion flow channel 45 is larger than the outlet, that is, the large diameter port of the conical through hole is located at the gas storage groove 44, the small diameter port of the conical through hole is located at the outer wall of the hub, and the diameter of the diffusion flow channel gradually decreases from inside to outside.
Preferably, as shown in fig. 6, the axis of the diffusion flow path 45 is disposed obliquely upward from the inlet to the outlet. When the premixed gas-water mixture or the second gas-water mixture in the diffusion flow passage 45 is sprayed out from the outlet of the diffusion flow passage, the premixed gas-water mixture flows obliquely upwards and outwards, and the oxygen dissolving effect of the upper part in the aeration chamber 3 is enhanced, so that the oxygen dissolving effect of the upper part outside the aeration chamber is enhanced.
Alternatively, preferably, as shown in fig. 7, the axis of the diffusion flow path 45 is disposed obliquely downward from the inlet to the outlet. When the premixed gas-water mixed liquid or the second gas-water mixed liquid in the diffusion flow passage 45 is sprayed out from the outlet of the diffusion flow passage, the premixed gas-water mixed liquid or the second gas-water mixed liquid obliquely downwards and outwards flows, and the oxygen dissolving effect of the inner lower part of the aeration chamber 3 is enhanced, so that the oxygen dissolving effect of the bottom of the tank is enhanced.
In this embodiment, after the vapor-water mixed liquid in the diffusion flow channel 45 is ejected tangentially from the outlet of the diffusion flow channel at a high speed, the diameter of the diffusion flow channel gradually decreases from inside to outside, so as to increase the ejection speed of the outlet of the diffusion flow channel and the pressure of the second vapor-water mixed liquid, further increase the impact strength of the second vapor-water mixed liquid and the first vapor-water mixed liquid in the aeration chamber, and improve the aeration effect.
Preferably, the pipe wall of the air inlet pipe 5 in the aeration chamber 3 is provided with a plurality of air outlet holes 51. Part of air in the air inlet pipe 5 can enter the aeration chamber 3 through the air outlet hole 51 positioned above the air storage groove and is premixed with water entering from the water inlet 35 at the top end of the aeration chamber 3, so as to improve aeration rate, and then the first vane 42 rotating at high speed continuously drives the steam-water mixed liquid to fly out at high speed to form negative pressure, so that the air continuously enters the aeration chamber through the air inlet pipe to form first steam-water mixed liquid. The second vane 46 rotating at high speed drives the premixed vapor-water mixed liquid in the air storage tank to rotate at high speed to form negative pressure, so that a part of air enters the air storage tank through the bottom end outlet of the air inlet pipe 5 and the air outlet hole 51 positioned in the air storage tank, the air content in the premixed vapor-water mixed liquid in the air storage tank is improved, and then the premixed vapor-water mixed liquid enters the diffusion flow channel under the drive of the second vane to form the second vapor-water mixed liquid.
Preferably, the lower surface of the upper cover plate 31 and the upper surface of the lower cover plate 32 are provided with third cutting grooves, and the third cutting grooves are circular. In the process of flowing the steam-water mixed liquid in the aeration chamber 3, the mixed liquid in the aeration chamber is cut by the lower surface of the upper cover plate 31 and the third cutting groove on the upper surface of the lower cover plate 32 to form finer and finer water drops and bubbles, so that more oxygen is dissolved in water, and the aeration effect is improved.
The submersible aeration method of the above preferred embodiment adopts the submersible aerator of the preferred embodiment as described in fig. 1. The diving aeration method comprises the following steps:
the submersible electric pump 2 is started, the impeller 4 rotates, negative pressure is generated in the aeration chamber 3, external water continuously enters the aeration chamber 3 from the water inlet at the top end, and air above the liquid level of the external water is also sucked into the air inlet pipe 5. In the downward flowing process of water entering from the top end, the water is premixed with air entering the aeration chamber 3 through the air outlet hole 51 positioned above the air storage groove of the air inlet pipe to improve aeration rate, and then the impeller rotating at high speed continuously drives the steam-water mixed liquid to flow at high speed to form negative pressure, so that the air continuously enters into the aeration chamber through the air inlet pipe to form a first steam-water mixed liquid.
Simultaneously, the second vane 46 rotates at a high speed, negative pressure is generated in the air storage groove 44, so that part of air in the air inlet pipe flows into the air storage groove 44 through the air outlet hole 51 positioned in the air storage groove and the bottom opening of the air inlet pipe, the air content in the premixed soda mixed liquid in the air storage groove is improved, then the premixed soda mixed liquid flows into the diffusion flow channel 45 under the action of the second vane 46, a second soda mixed liquid is formed, and the second soda mixed liquid is injected into the aeration chamber 3 from the outlet of the diffusion flow channel 45.
The second vapor-water mixture ejected from the diffusion flow path 45 collides with the first vapor-water mixture in the aeration chamber 3, and is cut and mixed to form fine and dense water droplets and bubbles, thereby forming a fourth vapor-water mixture.
The fourth vapor-water mixed liquid tangentially flows along the circumference of the impeller under the action of the impeller, and the third cutting grooves on the lower surface of the upper cover plate 31 and the upper surface of the lower cover plate 32 respectively cut the mixed liquid in the aeration chamber up and down to further form finer and finer water drops and bubbles, so that more oxygen is dissolved in water.
And the fourth steam-water mixed liquid flows to the liquid outlet along the guide vane plate under the action of the impeller. Simultaneously, the first cutting grooves on the two side surfaces of the guide vane plate respectively cut the steam-water mixed liquid of the two adjacent flow channels, and the steam-water mixed liquid is cut into finer and finer water drops and bubbles again, so that the contact area of the bubbles and the water drops is enlarged, and more oxygen is dissolved in water.
The fourth soda water mixed liquid continues to flow to the liquid outlet of the aeration cavity, part of the soda water mixed liquid flows upwards and outwards in an inclined way along the upper end face of the adjusting ring 34, and part of the soda water mixed liquid flows downwards and outwards in an inclined way along the lower end face of the adjusting ring 34. The second cutting grooves 343 of the upper end surface and the lower end surface of the adjusting ring respectively cut the steam-water mixed liquid flowing obliquely upwards and outwards and obliquely downwards and outwards again in different directions, so that more steam-water mixed liquid is cut into finer and finer water drops and bubbles, the contact area of air and water drops is enlarged, and more oxygen is dissolved in water.
And a plurality of fourth steam-water mixed liquids flow into the external water body around the aeration chamber from the liquid outlet of the round around the aeration chamber.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the present invention.
Claims (6)
1. The high-efficiency diving aeration method is characterized in that a diving aerator is adopted, the diving aerator comprises a base (1), a diving electric pump (2), an aeration chamber (3) and an air inlet pipe (5) from bottom to top, the diving electric pump (2) is arranged on the base (1), the diving electric pump (2) and the base (1) are put into a pool bottom by relying on self weight, or the diving electric pump (2) and the base (1) are fixed on a concrete foundation of the pool bottom; an impeller (4) is arranged in the aeration chamber (3), and the impeller (4) is connected with the submerged pump (2); one end of the air inlet pipe (5) is provided with a silencer (6) and is positioned above the liquid level of the water body, and the other end of the air inlet pipe extends into the aeration chamber (3) and is positioned above the impeller (4); the aeration chamber (3) comprises an upper cover plate (31), a lower cover plate (32) and a plurality of guide blades (33), wherein the upper cover plate (31) and the lower cover plate (32) are hollow revolution bodies with horn mouths, which are formed by rotating concave curves around a central shaft, and openings are formed in the centers of the upper cover plate (31) and the lower cover plate (32); the opening of the upper cover plate (31) is larger than the opening of the lower cover plate (32), and the opening of the lower cover plate (32) is matched with the output shaft of the submersible electric pump so as to enable the output shaft of the submersible electric pump to pass through; the upper cover plate (31) and the lower cover plate (32) are arranged at intervals up and down and are connected through a plurality of guide blades (33), and an aeration cavity with a water inlet positioned at the top end and a liquid outlet positioned at a circle of circumference is formed between the upper cover plate (31) and the lower cover plate (32); an output shaft of the submersible electric pump penetrates through an opening of the lower cover plate (32) and stretches into the aeration cavity to be connected with the impeller (4); the lower cover plate (32) is fixed on the shell of the submerged electric pump; the air inlet pipe (5) is fixedly connected with the upper cover plate (31); the two side surfaces of the guide blade plate (33) are provided with first cutting grooves which are vertically distributed; the first cutting groove is a V-shaped groove with a certain depth, and the V-shaped groove is vertically arranged from the top end to the bottom end of the guide vane plate;
the impeller (4) comprises a hub (41) and first blades (42), the hub (41) is cylindrical, and 3-5 first blades (42) are arranged at the top end of the hub (41) to form a centrifugal impeller; the center of the bottom end of the hub (41) is provided with a shaft hole (43) for connecting with a motor shaft of the submersible electric pump (2), and the center of the top end of the hub (41) is provided with a gas storage groove (44); the diameter of the air storage groove (44) is larger than or equal to the diameter of the shaft hole (43) and smaller than the inner diameter of the first blade (42); the shaft hole (43) is communicated with the air storage groove (44), and a motor shaft of the submersible electric pump (2) penetrates through the shaft hole (43) and stretches into the air storage groove (44) to be connected with a second blade (46) positioned in the air storage groove (44); the submersible electric pump (2) operates to drive the hub (41) and the second blades (46) to synchronously rotate; a diffusion flow passage (45) is arranged in the hub (41), an inlet of the diffusion flow passage is communicated with the gas storage groove, and an outlet of the diffusion flow passage is positioned on the outer wall of the hub (41) and is communicated with the aeration chamber (3); 3-6 diffusion channels (45) are uniformly distributed on the same cross section of the hub (41); the diffusion flow passage (45) is a conical through hole, and the inlet of the diffusion flow passage (45) is larger than the outlet; the large-diameter port of the conical through hole is positioned at the gas storage groove (44), the small-diameter port of the conical through hole is positioned on the outer wall of the hub, and the diameter of the diffusion flow passage is gradually reduced from inside to outside; the outer diameter of the air inlet pipe (5) is smaller than the diameter of the air storage groove (44), and the lower part of the air inlet pipe (5) is positioned in the air storage groove (44); the air inlet pipe and the air storage groove are coaxially arranged; the difference between the outer diameter of the air inlet pipe (5) and the inner diameter of the air storage groove (44) is 4-16 mm, and the gap width between the air inlet pipe and the air storage groove (44) in the radial direction is 2-8 mm;
the diving aeration method comprises the following steps:
step 10, starting a submerged electric pump (2), rotating an impeller (4), generating negative pressure in an aeration chamber (3), continuously enabling external water to enter the aeration chamber (3) from a water inlet at the top end, sucking air above the liquid level of the external water into an air inlet pipe (5), and enabling the air to enter the aeration chamber (3) from the upper part in the aeration chamber (3); the water entering from the top end is premixed with air entering from the upper part in the downward flowing process to form premixed steam-water mixed liquid, and the premixed steam-water mixed liquid flows in the aeration chamber, so that the air continuously enters into the aeration chamber through the air inlet pipe, the air quantity entering into the aeration chamber is increased, and a first steam-water mixed liquid is formed;
step 21, the second blades (46) rotate, negative pressure is generated in the air storage groove (44), so that part of air in the air inlet pipe flows into the air storage groove (44), the air content in the premixed soda mixed liquid in the air storage groove is improved, then the premixed soda mixed liquid flows into the diffusion flow channel (45) under the action of the second blades (46), a second soda mixed liquid is formed, and the second soda mixed liquid is injected into the aeration chamber (3) from the outlet of the diffusion flow channel (45); the second vapor-water mixed liquid ejected from the diffusion flow channel (45) is mutually fused with the first vapor-water mixed liquid in the aeration chamber (3) through collision cutting, so that finer and finer water drops and bubbles are formed, and oxygen in the first vapor-water mixed liquid and the second vapor-water mixed liquid is better dissolved in water, so that a fourth vapor-water mixed liquid is formed;
step 30, enabling the steam-water mixed liquid to flow tangentially along the circumference of the impeller under the action of the impeller, enabling a plurality of guide blades (33) to divide the inside of the aeration chamber along the circumference of the impeller to form a plurality of flow channels which are connected in sequence, enabling the guide blades to cut and split the steam-water mixed liquid to form finer water drops and bubbles, enabling more oxygen to be dissolved in water, and improving the dissolved oxygen amount of the water body; the multiple strands of steam-water mixed liquid flow to the liquid outlet along the guide vane plates (33) in the multiple flow channels respectively, and flow into the external water body in the circumferential direction of the aeration chamber from the liquid outlet of the circumferential ring of the aeration chamber, so that the balance of the aeration chamber outside Zhou Baoqi is ensured;
in the step 30, when the steam-water mixed liquid flows to the liquid outlet along the guide vane plate (33), the steam-water mixed liquid moves relatively to the static guide vane plate, and as the steam-water mixed liquid moves tangentially, the first cutting grooves on the two sides of the same guide vane plate respectively cut two adjacent steam-water mixed liquids flowing outwards, so that the steam-water mixed liquid is cut into finer and finer water drops and bubbles, the contact area of the bubbles and the water drops is enlarged, and more oxygen is dissolved in water; and the first cutting grooves cut the steam-water mixed liquid at different heights in the circumferential direction, so that the oxygen dissolving effect in the circumferential direction and the height direction of the inner circumference of the aeration chamber (3) is improved, and the oxygen dissolving effect of the external water body in the circumferential direction and the height direction is improved after the steam-water mixed liquid flows out.
2. The method according to claim 1, wherein in the step 30, when the soda water mixture flows through the guide vane but does not reach the liquid outlet, part of the soda water mixture flows obliquely upwards and outwards along the upper end face of the adjusting ring (34), so that the soda water mixture continues to flow obliquely upwards under the inertia effect after flowing out from the liquid outlet, so as to strengthen the oxygen dissolving effect of the upper part of the external water body; and part of the vapor-water mixed liquid flows downwards and outwards along the lower end face of the adjusting ring (34) in an inclined way, so that the vapor-water mixed liquid flows downwards continuously under the inertia effect after flowing out from the liquid outlet, and the oxygen dissolving effect of the bottom of the tank is enhanced.
3. The diving aeration method according to claim 2, characterized in that in the process that the soda mixed liquid flows upwards and outwards along the upper end face of the adjusting ring (34), the second cutting groove (343) of the upper end face cuts the soda mixed liquid, cuts the soda mixed liquid into finer and finer water drops and bubbles, enlarges the contact area of air and water drops, and enables more oxygen to be dissolved in water; in the process that the steam-water mixed liquid flows downwards and outwards along the lower end face of the adjusting ring (34), the second cutting groove (343) of the lower end face cuts the steam-water mixed liquid, the steam-water mixed liquid is cut into finer and finer water drops and bubbles, the contact area of air and the water drops is enlarged, and more oxygen is dissolved in water.
4. A submersible aeration method according to claim 1, characterized in that the axis of the diffusion flow channel (45) is arranged obliquely upwards from the inlet to the outlet; when the steam-water mixed liquid in the diffusion flow channel (45) is sprayed out from the outlet of the diffusion flow channel, the steam-water mixed liquid obliquely upwards and outwards flows, and the oxygen dissolving effect of the inner upper part of the aeration chamber (3) is enhanced, so that the oxygen dissolving effect of the outer upper part of the aeration chamber is enhanced.
5. A submersible aeration method according to claim 1, characterized in that the axis of the diffusion flow channel (45) is arranged obliquely downwards from the inlet to the outlet; when the steam-water mixed liquid in the diffusion flow channel (45) is sprayed out from the outlet of the diffusion flow channel, the steam-water mixed liquid flows downwards and outwards in an inclined way, and the oxygen dissolving effect of the inner lower part of the aeration chamber (3) is enhanced, so that the oxygen dissolving effect of the bottom of the tank is enhanced.
6. The submerged aeration method according to claim 1, wherein the third cutting grooves of the lower surface of the upper cover plate (31) and the upper surface of the lower cover plate (32) cut the mixed liquid in the aeration chamber during the flow of the aerated water mixed liquid in the aeration chamber (3) to form finer and finer water droplets and bubbles, so that more oxygen is dissolved in the water, and the aeration effect is improved.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311095365.2A CN116874096A (en) | 2023-08-29 | 2023-08-29 | Efficient diving aeration method |
| CN2023110953652 | 2023-08-29 |
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| CN117142672A CN117142672A (en) | 2023-12-01 |
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| CN202311349996.2A Active CN117142672B (en) | 2023-08-29 | 2023-10-18 | Efficient diving aeration method |
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| CN116874096A (en) * | 2023-08-29 | 2023-10-13 | 南京科技职业学院 | Efficient diving aeration method |
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| USRE29075E (en) * | 1966-08-12 | 1976-12-14 | Richards Of Rockford | Liquid aerator |
| CN106745681A (en) * | 2016-12-20 | 2017-05-31 | 蓝深集团股份有限公司 | submersible aerator with cutting function |
| CN206828216U (en) * | 2017-06-19 | 2018-01-02 | 江苏如克环保设备有限公司 | Jetting type submersible aerator |
| CN109354223A (en) * | 2018-11-14 | 2019-02-19 | 南京合工智能环保研究院有限公司 | A kind of submersible agitating aerator |
| CN112427000A (en) * | 2020-12-25 | 2021-03-02 | 靖江市浩鑫电气机械配件有限公司 | High energy-saving multiphase flow rapid mixing reactor |
| CN113998791A (en) * | 2021-10-25 | 2022-02-01 | 吉林大学 | Submersible aerator |
| CN114656047A (en) * | 2022-03-24 | 2022-06-24 | 南京科技职业学院 | High-efficient dive aeration machine |
| CN116874096A (en) * | 2023-08-29 | 2023-10-13 | 南京科技职业学院 | Efficient diving aeration method |
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2023
- 2023-08-29 CN CN202311095365.2A patent/CN116874096A/en not_active Withdrawn
- 2023-10-18 CN CN202311349996.2A patent/CN117142672B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE29075E (en) * | 1966-08-12 | 1976-12-14 | Richards Of Rockford | Liquid aerator |
| CN106745681A (en) * | 2016-12-20 | 2017-05-31 | 蓝深集团股份有限公司 | submersible aerator with cutting function |
| CN206828216U (en) * | 2017-06-19 | 2018-01-02 | 江苏如克环保设备有限公司 | Jetting type submersible aerator |
| CN109354223A (en) * | 2018-11-14 | 2019-02-19 | 南京合工智能环保研究院有限公司 | A kind of submersible agitating aerator |
| CN112427000A (en) * | 2020-12-25 | 2021-03-02 | 靖江市浩鑫电气机械配件有限公司 | High energy-saving multiphase flow rapid mixing reactor |
| CN113998791A (en) * | 2021-10-25 | 2022-02-01 | 吉林大学 | Submersible aerator |
| CN114656047A (en) * | 2022-03-24 | 2022-06-24 | 南京科技职业学院 | High-efficient dive aeration machine |
| CN116874096A (en) * | 2023-08-29 | 2023-10-13 | 南京科技职业学院 | Efficient diving aeration method |
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| CN116874096A (en) | 2023-10-13 |
| CN117142672A (en) | 2023-12-01 |
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