CN214508858U - Extended-range oxygen dissolving device - Google Patents

Abstract

The utility model discloses a prolong journey dissolved oxygen device, including water storage container, water storage container's bottom is equipped with the aerator, still includes the bubble and divides the line ware, the bubble divides the line ware to set up the top of aerator, the bubble divides the line ware to include the support, be equipped with branch line component on the support, the one end of support is equipped with curved deflector, the deflector with branch line component meets, the deflector is facing to the aerator, divide the line component to keep away from the one end of deflector along the horizontal direction tilt up gradually. The utility model discloses an utilize the bubble of slope to divide the ware, the bubble that produces the aerator is at first guided by curved deflector on the component of dividing the line, is blockked by the inclined plane after contacting the component of dividing the line for the bubble can remove along the component of dividing the line, has increased the dwell time of bubble, utilizes the deflector can avoid piling up of bubble moreover.

Description

Extended-range oxygen dissolving device

Technical Field

The utility model relates to an aquaculture and environmental protection field especially improve device of aquatic dissolved oxygen efficiency.

Background

At present, the living body transportation of the aquatic fishes generally adopts aeration stones or aeration pipes, bubbles vertically move to the water surface after coming out from an aerator, the moving speed of the bubbles in the water is high, the retention time is short, the dissolved oxygen efficiency is low, and the aquaculture or transportation density of the aquatic fishes is reduced. Taking weever as an example, the weever generally adopts a low-temperature storage and pure oxygen aeration mode at present. The aeration is generally carried out by adopting nanotube aeration, a 65-liter foam box is used for heat preservation, and the proportion of fish to water is generally 1: 2.6. the oxygen consumption of weever is 70mg/Kg fish at 17 ℃ in a quiet state, oxygen is supplied to the weever generally through a liquid oxygen tank, about 2.5g of oxygen is supplied to each kilogram of fish per hour, and the oxygen utilization rate is only 2-3%.

Experimental analysis shows that the factors influencing the dissolved oxygen efficiency comprise the initial diameter of bubbles, the oxygen partial pressure, the temperature, the dissolved oxygen diffusion efficiency and the like; the mode of adopting the aeration pipe, the aeration point is concentrated, because the barrier effect of fish, dissolved oxygen diffusion efficiency is low, and the dissolved oxygen of everywhere is inhomogeneous in the insulation can, consequently leads to the loading density of fish not high. Meanwhile, in the current aeration mode, bubbles generated by an aerator are directly discharged into water, the bubbles vertically rise in the water, the retention time in the water is too short, most of oxygen in the bubbles is directly discharged into the air, so that the oxygen is wasted, the aeration position is too concentrated, and the dissolved oxygen in the water is unbalanced.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: it is an object of the present invention to provide a device for extended-range oxygen dissolution, which solves one or more of the problems of the prior art, and provides at least one of the advantages of the prior art.

The utility model provides a solution of its technical problem is: the utility model provides a prolong journey dissolved oxygen device, includes water storage container, water storage container's bottom is equipped with the aerator, still includes the bubble and divides the line ware, the bubble divides the line ware to set up the top of aerator, the bubble divides the line ware to include the support, be equipped with branch line component on the support, the one end of support is equipped with curved deflector, the deflector with branch line component meets, the deflector is facing to the aerator, branch line component keeps away from the one end of deflector and upwards slopes gradually along the horizontal direction.

The utility model has the advantages that: the utility model discloses an utilize the bubble of slope to divide the ware, the bubble that produces the aerator is at first guided by curved deflector on the component of dividing the line, is blockked by the inclined plane after contacting the component of dividing the line for the bubble can remove along the component of dividing the line, has increased the dwell time of bubble, utilizes the deflector can avoid piling up of bubble moreover.

As a further improvement of the above technical solution, the row dividing members are mesh cloth, and the row dividing members are fixed on the upper surface of the bracket.

The row component adopts a mesh fabric structure, wherein a plurality of meshes are arranged on the mesh fabric, and the aperture of the meshes is smaller than the outer diameter of the bubbles generated by the aerator. So that the bubbles can move obliquely upward all the way along the line-dividing member. And in the movement process, the bubbles can be mixed with water to generate oxygen, and the oxygen in the bubbles is uniformly blended into the water.

As a further improvement of the above technical solution, a grid is provided on the support, the grid is located on the lower surface of the row-dividing member, and the grid and the row-dividing member form a plurality of bubble channels. The grid rail is arranged on the separator to prevent the transverse fusion of bubbles.

As a further improvement of the technical scheme, the guide plate is provided with a plurality of blocks, and the head end of each bubble channel is provided with the guide plate. The guide plate adopts independent setting, can be so that the effect of direction is better.

As a further improvement of the above technical solution, the water storage container is a box body, the bubble separator further includes a mounting seat, the bracket is fixed on the mounting seat, and the mounting seat is mounted on a side wall of the box body. Through the mounting seat, the installation of the bubble shape divider can be facilitated, and meanwhile, the inclination angle of the bubble shape divider can be adjusted by utilizing the mounting seat.

As a further improvement of the above technical solution, a support frame is further provided on the back of the support frame, and the line-dividing member abuts against the support frame. By adding the supporting frame, the installation strength of the line-dividing component can be improved.

As a further improvement of the above technical solution, the aerator includes an air outlet pipe, and a center line of the air outlet pipe is parallel to a length direction of the branch member. The air outlet angle of the aerator is parallel to the inclination angle of the fractal component, so that the dissolved oxygen efficiency of the bubbles can be improved.

As a further improvement of the technical scheme, the number of the bubble separators is more than two, and a plurality of the bubble separators are arranged up and down. The plurality of the line dividers are arranged at intervals up and down, and can disperse dissolved oxygen and promote the diffusion of the dissolved oxygen.

As a further improvement of the above technical solution, the bubble separator includes a spiral rising portion. Partial or whole structure of the bubble separator is transformed into a spiral rising shape, and the bubbles rise spirally by changing rising motion tracks of the bubbles, so that the oxygen dissolving efficiency of the bubbles is further improved.

The technical scheme can be used for aquaculture, the oxygen content in the water body is improved, and the transportation capacity of the aquatic products is improved; meanwhile, the method can also be used for environment-friendly water body treatment, such as sewage treatment and the like.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic structural diagram of the bubble separator of the present invention.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. The preferred embodiment of the present invention is shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution. Meanwhile, all technical characteristics in the invention can be interactively combined on the premise of not conflicting with each other.

In an embodiment of the present invention, referring to fig. 1 to 2, an extended-range oxygen dissolving device includes a rectangular box 100, a mounting seat is disposed on one side wall of the box 100, an aerator 200 is disposed at the bottom of the box 100, the aerator 200 is communicated with an external air source, and an air bubble distributor 300, the air bubble distributor 300 is disposed above the aerator 200, the air bubble distributor 300 includes a bracket 310, the bracket 310 is fixed on the mounting seat, a row-dividing member 320 is disposed on the bracket 310, the row-dividing member 320 is mesh cloth, the row-dividing member 320 is fixed on the upper surface of the bracket 310 (for example, fixed by bonding), an arc-shaped guide plate 330 is disposed at one end of the bracket 310, the lower end of the guide plate 330 is spaced from the aerator 200, the tangential direction of the upper end of the guide plate 330 is parallel to the length direction of the row-dividing member 320, and the guide plate 330 is connected to the branch member 320, the guide plate 330 faces the aerator 200, and one end of the branch member 320, which is far from the guide plate 330, is gradually inclined upward in the horizontal direction. The support 310 is provided with a grating 340 extending along the length direction, the grating 340 is positioned on the lower surface of the row component, and the grating 340 and the row component 320 form a plurality of bubble channels 400. The guide plate 330 has a plurality of pieces, and the guide plate 330 is provided at the head end of each bubble passage 400. The aerator 200 includes an outlet pipe 210, and a center line of the outlet pipe 210 is parallel to a length direction of the branch member 320.

According to the theory of osmotic mass transfer of Higbie, the gas membrane and liquid membrane double-membrane method is used for analysis, and the one-dimensional unsteady state diffusion equation and corresponding boundary conditions are used for describing the bubble mass transfer process

C is the concentration of oxygen in water, D is the diffusion coefficient of oxygen in water, t is time, y is the direction of mass transfer, and the instantaneous flux of mass transfer

At a short contact time t of the two phases_τAverage mass transfer flux in

Coefficient of mass transfer

Mass transfer coefficient of modified formula according to professor of professor

d is the bubble diameter, v is the bubble velocity,

total time T of bubble staying in water, total dissolved oxygen of single bubble

Obviously, the improvement of the dissolved oxygen efficiency is to increase the two-phase oxygen flux of the bubbles, prolong the retention time of the bubbles in water and increase the total surface area of the bubbles in the water.

Based on the theory, the scheme increases the total surface area of bubbles in water by prolonging the movement time of the bubbles in the water body, thereby achieving the purpose of improving the dissolved oxygen efficiency.

Meanwhile, according to the bubble fusion theory, the fusion of two bubbles is related to the surface tension of the liquid and the distance between the bubbles, the surface tension is consistent under the same liquid state, and the distance between the bubbles needs to be controlled in order to reduce the fusion of the bubbles; in the process of rising the bubbles, the speed is increased continuously, and the distance between two bubbles in the vertical direction is also increased continuously. When the bubbles are captured by the parallel line splitter, the bubbles are subjected to the reaction force of the line splitter, the reaction force acts on the bubbles along the normal direction of the line splitter together with buoyancy and viscous force, the bubbles are compressed at the moment, the moving speed direction of the bubbles is changed, meanwhile, the line splitter and the horizontal direction have an inclination angle alpha, when the bubbles are balanced on the line splitter, the normal component force Fcos alpha of the buoyancy is equal to the supporting force, the larger the alpha is, the smaller the supporting force is, and the balance force is controlled to achieve the following beneficial results: 1. because the bubbles receive the two balanced stresses, the bubbles are compressed, the diameter is reduced, and dissolved oxygen is facilitated; 2. when the alpha changes in a certain range, the tangential component vssin alpha of the bubble velocity v is large enough, and the vcos alpha is 0 under the action of the supporting force, so that the distance from the next bubble is not shortened too much, and the bubble fusion possibility is reduced.

And because the guide plate is added and is in the shape of an arc, the buoyancy, the thrust and the viscous force of the separator are converted into the centripetal force of arc motion, and the linear velocity of the bubbles is not changed at the moment. Therefore, the distance between two successively arriving bubbles on the guide plate is not changed, when the bubbles move out of the arc-shaped guide plate and then enter the bubble channel, the bubbles accelerate upwards or move at a constant speed under the combined action of parallel component force and viscous force due to the included angle between the distributor and the horizontal direction, and the distance between the front bubbles and the rear bubbles is kept. Meanwhile, in order to reduce bubble fusion on the line splitter, a grating track is arranged on the line splitter to prevent the bubbles from being fused transversely.

In some embodiments, the bubble splitter may be partially or entirely arranged in a spiral-up shape. For example, the spiral-shaped bubble distributor may be implemented by forming the frame 310 into a spiral shape, providing the flexible row member 320 on the frame 310, and providing the grid on the frame 310 into a spiral shape in a matching manner. After a new bubble separator is adopted, bubbles rise in water in a spiral shape in a free state, so that the fusion probability of adjacent bubbles is high, and the arrangement of the grid track can prevent the bubbles from being fused transversely. The line separator is made into a spiral shape, the running direction of bubbles can be changed, normal supporting force is needed to be provided to enable the bubbles to be stressed to point to the centripetal direction in order to change the running direction of the bubbles, the normal force has an included angle with the Z axis in space, and a grating track or the line separator can be arranged to incline to the Z axis in the realization method.

And simultaneously, the utility model discloses the aerator that uses is the nanometer aerator, this nanometer aeration pipe's play bubble is linear, the bubble distributes along the pipeline, the bubble is caught the back by the inclined plane of fractal component after forming and is followed inclined plane upward movement, in same position, the bubble of catching earlier walks earlier, the bubble of back seizure is followed, thereby can avoid a plurality of bubbles to pile up like this, thereby fuse the total surface area who reduces the bubble, be favorable to the inside oxygen of bubble to dissolve in aqueous, along with the extension on inclined plane of bubble stroke, the aquatic dissolved oxygen volume is for increasing greatly.

Experiments prove that the device comprises the following components:

and (3) experimental verification:

1. no-load comparison test:

in a comparative experiment 1, a nano tube of an aeration device, a long-range dissolved oxygen + nano tube and two 65-liter heat preservation boxes are placed for 2 days respectively by 52 kilograms of tap water; oxygen supply apparatus: in an online oxygen generator, the oxygen concentration is 90 percent, and the flow rate is 500 ml/min; the dissolved oxygen detector records data every minute, the oxygen supply is started when the data is 0 minutes, the data is initial when the data is 0 minutes, the reading of the dissolved oxygen detector is C, the total dissolved oxygen content Ctotal is (ct-C0) x52, and the average dissolved oxygen content C per minute is 52x (ct-C0)/t

Time (minutes)	Dissolved oxygen amount C (mg/min) No. 0	A dissolved oxygen amount C (mg/min)	Ratio C/B
				0	0.0	0.0	0.0
1	20.0	27.0	1.4
				2	12.5	37.8	3.0
3	16.7	39.6	2.4
				4	18.8	35.1	1.9
5	20.0	41.0	2.1
				6	20.0	40.5	2.0
7	21.4	39.3	1.8
				8	21.3	39.8	1.9
9	21.7	40.2	1.9
				10	21.0	38.9	1.9
11	21.8	39.3	1.8
				12	21.3	37.4	1.8
13	21.5	36.6	1.7
				14	21.1	36.3	1.7
15	21.3	35.6	1.7
				16	21.3	35.1	1.7
17	20.6	34.9	1.7
				18	20.6	34.2	1.7
19	20.8	34.4	1.7
				20	19.8	32.9	1.7

The nanotube direct aeration test is abbreviated as No. 0, and the nanotube + extended path dissolved oxygen test is abbreviated as No. A

Comparative experiment 2, the aeration device nanotubes, the extended path dissolved oxygen + nanotubes and two 65 liter heat preservation boxes, each containing 52 kg of tap water, were placed for 4 days; oxygen supply apparatus: in an online oxygen generator, the oxygen concentration is 90 percent, and the flow rate is 500 ml/min; the dissolved oxygen detector records data every minute, the oxygen supply is started at 0 point, the initial data is at 0 point, the reading of the dissolved oxygen detector is C, the total dissolved oxygen amount Ctotal is (ct-C0) x52, and the average dissolved oxygen amount C per minute is 52x (ct-C0)/t.

Time (minutes)	0 dissolved oxygen B (mg/min)	A dissolved oxygen amount C (mg/min)	Ratio C/B
				0	0.0	0.0	0.0
1	50.0	91.8	1.8
				2	35.0	64.8	1.9
3	30.0	52.2	1.7
				4	28.8	44.6	1.5
5	29.0	44.3	1.5
				6	24.2	42.3	1.8
7	25.7	44.0	1.7
				8	23.8	42.5	1.8
9	23.9	40.8	1.7
				10	22.5	40.0	1.8
11	23.6	38.8	1.6
				12	23.3	36.9	1.6
13	21.9	36.6	1.7
				14	22.5	35.9	1.6
15	21.7	35.3	1.6
				16	21.9	34.1	1.6

The nanotube direct aeration test is abbreviated as No. 0, and the nanotube + extended path dissolved oxygen test is abbreviated as No. A

The two times of experimental data show that the dissolved oxygen of the device of the scheme is more than 1.6 times of the dissolved oxygen of the pure nanotube aeration.

Through the comparison, the extended-range oxygen dissolving device can reduce the transportation cost and improve the utilization efficiency of oxygen. The overall economic benefit is better.

In a further preferred embodiment, a support frame (not shown) is further provided on the back of the support frame 310, and the line-dividing member abuts against the support frame.

Further, as a preferred embodiment, there are more than two bubble separators 300, and a plurality of the bubble separators are arranged above and below.

When the extended-range oxygen dissolving device is applied to the field of environmental protection, the water storage container can be a pond, a water tank or a river or a lake and the like. The oxygen content in the water body is effectively improved by utilizing the extended-range oxygen dissolving device to be arranged in the water body. Thereby realizing the improvement of the water environment.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the details of the embodiments shown, but is capable of various modifications and substitutions without departing from the spirit of the invention.

Claims (9)

1. The extended-range oxygen dissolving device comprises a water storage container, wherein an aerator is arranged at the bottom of the water storage container, and the extended-range oxygen dissolving device is characterized in that: the aerator comprises an aerator and is characterized by further comprising a bubble separator, wherein the bubble separator is arranged above the aerator and comprises a support, a line separating component is arranged on the support, an arc-shaped guide plate is arranged at one end of the support and is connected with the line separating component, the guide plate faces the aerator, and one end, far away from the guide plate, of the line separating component is gradually inclined upwards along the horizontal direction.

2. The extended range oxygen dissolving device according to claim 1, wherein: the row dividing component is mesh cloth and is fixed on the upper surface of the support.

3. The extended range oxygen dissolving device according to claim 2, wherein: the support is provided with a grid, the grid is positioned on the lower surface of the row dividing component, and the grid and the row dividing component form a plurality of bubble channels.

4. The extended range oxygen dissolving device according to claim 3, wherein: the guide plate has a plurality of, every bubble passageway's head end all is equipped with the guide plate.

5. The extended range oxygen dissolving device according to claim 1, wherein: the water storage container is a box body, the bubble separator further comprises a mounting seat, the support is fixed on the mounting seat, and the mounting seat is mounted on the side wall of the box body.

6. The extended range oxygen dissolving device according to claim 1, wherein: the back of the support is also provided with a support frame, and the line-dividing component is abutted against the support frame.

7. The extended range oxygen dissolving device according to claim 1, wherein: the aerator comprises an air outlet pipe, and the central line of the air outlet pipe is parallel to the length direction of the branch members.

8. The extended range oxygen dissolving device according to claim 1, wherein: the bubble separator is provided with more than two bubble separators, and the plurality of bubble separators are arranged up and down.

9. The extended range oxygen dissolving device according to claim 1, wherein: the bubble separator includes a spiral rise portion.

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