CN106242098B

CN106242098B - Impeller of aeration oxygen increasing machine

Info

Publication number: CN106242098B
Application number: CN201610970848.6A
Authority: CN
Inventors: 孙文平; 孙锦都; 徐燕
Original assignee: Taizhou Tianyu Aerobic Equipment Technology Co ltd
Current assignee: Taizhou Tianyu Aerobic Equipment Technology Co ltd
Priority date: 2016-11-04
Filing date: 2016-11-04
Publication date: 2022-08-30
Anticipated expiration: 2036-11-04
Also published as: CN106242098A

Abstract

The invention provides an impeller of an aeration aerator, belonging to the technical field of aquaculture. It has solved the not enough technical problem of waiting of current aeration oxygen-increasing machine aeration rate. This aeration oxygen-increasing machine's impeller is including being discoid impeller body, and this internal a plurality of air flues that are equipped with of impeller, and impeller body's middle part has the inlet port, and the interior port and the inlet port intercommunication of air flue, impeller body's border has a plurality of dogtooths, and every dogtooth all has the flank of tooth of giving vent to anger along same one side of the same circumferencial direction of impeller body, and the position of air flue corresponds with the dogtooth and the outer port of air flue is located the flank of tooth of giving vent to anger that corresponds the dogtooth. The impeller of the aeration aerator has the advantage of improving aeration quantity.

Description

Impeller of aeration aerator

Technical Field

The invention belongs to the technical field of aquaculture, and relates to an impeller of an aeration aerator.

Background

Aquatic products are important food sources for people, and wild aquatic products are fewer and fewer along with the reduction of lakes and rivers and the reduction of marine products, so that the scale of cultured aquatic products is larger and larger. Aquatic products are cultured in a closed culture pond, and in order to ensure the oxygen content of water in the culture pond, an oxygen increasing machine is generally adopted to increase oxygen.

There are many kinds of oxygen-increasing machines, and a submersible type oxygen-increasing machine is more common at present, for example, a novel submersible type oxygen-increasing machine disclosed in chinese patent document [ grant publication No. CN 202005205U ], which comprises a submersible motor, an air tank, a sealing ring, a rotating impeller, a power line, an external air pipe, and a metal triangular bracket; the submersible motor is fixed on the top end of the metal triangular support, the upper end of the submersible motor is connected with a power cord, the air tank is arranged at the lower end of the submersible motor, the lower end of the air tank is provided with a rotary impeller, a sealing ring is arranged at the joint of the air tank and the rotary impeller, and one end of the external air pipe is connected to the air tank. The submersible motor drives the rotary impeller to rotate, the rotary impeller rotates to throw air out by the generated centrifugal force to form negative pressure, and the air is sucked into the rotary impeller from the external air pipe and the air tank to realize continuous air transmission; this type of oxygen-increasing machine relies on the rotatory centrifugal force of impeller to realize the aeration, therefore the impeller needs high-speed the rotation, and the impeller in this patent adopts vane type structure, all receives the resistance of water between every blade when the impeller rotates, therefore the resistance that receives when the impeller rotates is very big, and the impeller also is difficult to high-speed the rotation, therefore the air in the blade receives centrifugal force less, leads to the aeration volume less.

In order to solve the above problems, chinese patent literature also discloses an oxygenation pump [ publication No. CN2408679Y ], in which a main flow passage is provided in a pump impeller, and an inlet and an outlet of the pump impeller in the main flow passage are vertically distributed. Although the pump impeller is in a disc shape, the rotation resistance is reduced, the outlet of the main flow channel is located on the outer peripheral surface of the pump impeller, and when the pump impeller is located underwater, the water pressure of water on the outlet of the main flow channel is high, so that air in the main flow channel can overcome the water pressure and is sprayed out from the outlet by extremely high centrifugal force, the aeration rate is low, and the pump impeller cannot be used in deep water.

Disclosure of Invention

The invention aims to provide an impeller of an aeration oxygen-increasing machine aiming at the problems in the prior art, and the impeller of the aeration oxygen-increasing machine is used for solving the technical problem of improving aeration quantity.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides an aeration oxygen-increasing machine's impeller, is including being discoid impeller body, this internal a plurality of air flues that are equipped with of impeller, impeller body's middle part has the inlet port, the inner port and the inlet port intercommunication of air flue, its characterized in that, impeller body's border has a plurality of dogtooths, every the dogtooth all has the flank of tooth of giving vent to anger along same one side of the same circumferencial direction of impeller body, the position of air flue corresponds just with the dogtooth the outer port of air flue is located the flank of tooth of giving vent to anger that corresponds the dogtooth.

When the device is used, the impeller is positioned in the culture pond, the air inlet of the impeller is fixed with the motor shaft of the motor, the motor shaft is provided with an air inlet channel, the air inlet channel is communicated with an air inlet pipe, and air can enter the air inlet hole through the motor shaft through the air inlet pipe.

The circumferential direction of the impeller body refers to the clockwise direction or the anticlockwise direction of the impeller body, when the gas outlet tooth surface on the impeller body is positioned on the same side face of the convex tooth along the clockwise direction of the impeller body, the motor drives the impeller body to rotate along the anticlockwise direction, and when the gas outlet tooth surface on the impeller body is positioned on the same side face of the convex tooth along the anticlockwise direction of the impeller body, the motor drives the impeller body to rotate along the clockwise direction; impeller body rotates and to drive the air in the air flue along with it and rotates, and the air in the air flue can flow from the inside port to the outside port of air flue under the effect of centrifugal force to realize that the air flows from the outer port and gets into to breed in the pond, realize the purpose of aeration oxygenation, can make the air flue form the negative pressure simultaneously, and the air can be followed the inlet port and inhaled in the air flue, realizes lasting aeration.

The quantity of air flue can all have the outer port of air flue on the tooth face of giving vent to anger of every dogtooth with the quantity of dogtooth, also can the quantity of air flue and the quantity of dogtooth be different and do not have the outer port of air flue on the tooth face of giving vent to anger of part dogtooth.

Further, because the existence of dogtooth, the dogtooth rotates and can push out its rotation route with water when impeller body rotates, just also make the water pressure that dogtooth direction of rotation rear position received reduce, the flank of tooth of giving vent to anger is for being located the side at dogtooth direction of rotation rear, therefore the outer port of air flue is relative with the less position of water pressure, make the air in the air flue reduce from the pressure that the outer port flows, make the air flow from the outer port under the effect of centrifugal force more easily, just also improved the aeration rate, can satisfy simultaneously and use in darker aquatic.

Because the impeller body is the disc, the resistance that receives water when rotating is less relatively, because pivoted resistance diminishes, the higher rotational speed can be realized to the impeller, further improve the centrifugal force that the air received, make the negative pressure value in the air flue higher, therefore can be with more air suction aquatic, the slew velocity of relative dogtooth also can further promote, the dogtooth slew velocity is fast more, the water pressure that the dogtooth direction of rotation rear position received also more falls, the air also flows from the outer port more easily, the aeration rate has been improved.

In the impeller of the aeration aerator, the convex teeth are provided with the flow guide tooth backs, the flow guide tooth backs are positioned on one sides of the convex teeth, the gas outlet tooth surfaces are positioned on the other sides of the convex teeth, and the flow guide tooth backs are planes. When the impeller rotates, the resistance when the impeller rotates can be reduced and the convex teeth rotate for the planar flow guide tooth back, so that the resistance when the impeller body operates is reduced, water in front of the rotation direction of the convex teeth flows to the outer side of the impeller body under the guidance of the flow guide tooth back, the water pressure on the air outlet tooth surface behind the rotation direction of the convex teeth is reduced, the water pressure on the outer port of an air passage is reduced, and the aeration quantity of the impeller is further improved.

In the impeller of the aeration aerator, an included angle a is formed between the flow guide tooth back and the air outlet tooth surface of the convex tooth, and the included angle a is an acute angle. The structure ensures that the water pressure on the air outlet tooth surface behind the rotation direction of the convex teeth keeps a lower level, so that the impeller keeps a higher aeration amount.

In the impeller of the aeration oxygen increasing machine, an included angle b is formed between the flow guide tooth backs and the air outlet tooth surfaces of the two adjacent convex teeth, and the included angle b is an obtuse angle. If contained angle b is the acute angle, the air that the outer port of air flue was thrown away can strike the water conservancy diversion tooth back of the body on the adjacent dogtooth, causes the increase of outer port air outflow pressure of air flue, and adopts contained angle b to make the air that the outer port of air flue was thrown away directly get into the aquatic for obtuse structure, and the flow of air can not block, therefore can further promotion the aeration rate of impeller.

In the impeller of the aerator, the area of the cross section of the air passage is gradually increased from the inner port to the outer port. This structure makes the negative pressure in the air flue increase gradually from the inside port department to the outside port department when the impeller body rotates, and the velocity of flow of air increases gradually from the inside port of air flue to the outside port for the air in the air flue is more quick flows to the outside port from the inside port of air flue, has also improved the flow of air in the air flue when the impeller rotates, makes more air in the unit interval throw away the entering breed pond from the outside port of air flue, consequently can further improve the aeration rate.

In the impeller of the aeration oxygen-increasing machine, the cross section of the air passage is flat. In order to reduce the resistance when the impeller body rotates, the thickness of the impeller body is relatively small, the flat air passage can obtain the air passage with the relatively enlarged cross section in the impeller body with the relatively small thickness, the air capacity of the air passage is improved, and the larger air capacity of the air passage can further improve the aeration rate during aeration.

In the impeller of the aerator, the air passage is arc-shaped, and the curvature of the air passage gradually increases from the inner port to the outer port. The length of the air flue of this structure is longer than the length that is sharp air flue relatively, and longer air flue means that this air is longer at the centrifugation acceleration time when rotating for the air is faster from the speed of outer port outflow, can further overcome the water pressure of outer port department, further improves the aeration rate.

In the impeller of the aeration oxygen increasing machine, the plurality of convex teeth and the plurality of air passages are annularly arranged and distributed by taking the axis of the impeller body as the center. This structure makes the focus of impeller body and axis coincidence for the impeller body can adapt to high-speed rotation, just also can further improve impeller body's aeration rate under the high-speed pivoted circumstances can be realized to the impeller body.

In the impeller of the aeration oxygen increasing machine, independent weight reduction cavities are arranged between adjacent air passages on the impeller body. The weight reduction cavity can reduce the weight of the impeller body, and the lighter impeller body can realize higher rotating speed, so that the centrifugal force applied to the air in the air passage is larger, and the aeration quantity of the impeller body can be further improved.

In the impeller of the aeration oxygen-increasing machine, the impeller body is integrally formed by casting. The integrally cast impeller body is simple in structure and convenient to machine; meanwhile, when the air flue operates in deeper water, air can only enter from the inner port, and air exits from the outer port, so that the condition of water leakage in the middle of the air flue can be avoided.

Compared with the prior art, the impeller of the aeration oxygen increasing machine has the advantage of improving the aeration rate.

Drawings

Fig. 1 is a schematic perspective view of an impeller of the aerator.

Fig. 2 is a schematic perspective view of another view angle of the impeller of the aerator.

Fig. 3 is a schematic top view of the impeller of the aerator.

Fig. 4 is a side view structure schematic diagram of the impeller of the aeration oxygen increasing machine.

Fig. 5 is a schematic sectional structure view of a-a in fig. 4.

FIG. 6 is a view showing the use state of the impeller of the aerator.

In the figure, 1, an impeller body; 11. a boss portion; 111. an air inlet; 12. convex teeth; 121. the air outlet tooth surface; 13. a flow guide tooth back; 14. a weight-reducing cavity; 15. thickening part; 2. an air passage; 21. an inner port; 22. an outer port; 3. a motor; 31. an air inlet pipe.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, the impeller of the aeration oxygen-increasing machine comprises a disk-shaped impeller body 1, a raised part 11 is arranged in the middle of the upper end face of the impeller body 1, an air inlet hole 111 is formed in the raised part 11, the lower end of the air inlet hole 111 extends into the impeller body 1, threads are formed on the hole wall of the air inlet hole 111, a thickened part 15 is arranged in the middle of the upper end face of the impeller body 1, the impeller body 1 is integrally formed by casting, the air inlet hole 111 is formed by drilling, the thickened part 15 can prevent the impeller body 1 from penetrating through during drilling, as shown in fig. 6, the impeller is positioned in a culture pond during use, a motor shaft of a motor 3 is in the air inlet hole 111 of the raised part 11 by virtue of threaded connection, the motor shaft is provided with an air inlet channel and is communicated with an air inlet pipe 31, and air can enter the air inlet hole 111 through the motor shaft by virtue of the air inlet pipe 31.

As shown in fig. 1, 2 and 5, a plurality of air passages 2 are arranged in the impeller body 1, the inner ports 21 of the air passages 2 are communicated with the air inlet holes 111, the cross sections of the air passages 2 are flat, and the areas of the cross sections of the air passages 2 are gradually increased from the inner ports 21 to the outer ports 22; the air duct 2 is arc-shaped, and the curvature of the air duct 2 gradually increases from the inner port 21 to the outer port 22.

As shown in fig. 1 to 5, the rim of the impeller body 1 has a plurality of convex teeth 12, the positions of the gas passages 2 correspond to the convex teeth 12, the plurality of convex teeth 12 and the plurality of gas passages 2 are distributed in a circular array around the axis of the impeller body 1, preferably, the number of convex teeth 12 and the number of gas passages 2 are six, and the positions of the gas passages 2 and the convex teeth 12 correspond to each other one by one in this embodiment. Independent weight reduction cavities 14 are arranged between the adjacent air passages 2 on the impeller body 1.

As shown in fig. 1 to 5, each tooth 12 has an air outlet tooth surface 121 and a guide tooth back 13, the air outlet tooth surface 121 is located on the same side of each tooth 12 along the same circumferential direction of the impeller body 1, and the outer port 22 of the air duct 2 is located on the air outlet tooth surface 121 of the corresponding tooth 12. The flow guide tooth backs 13 are positioned on the same side of each convex tooth 12 along the other circumferential direction of the impeller body 1, the flow guide tooth backs 13 are planes, an included angle a is formed between the flow guide tooth backs 13 on the convex teeth 12 and the air outlet tooth surface 121, the included angle a is an acute angle, and preferably, the included angle a is 30 degrees, 45 degrees and 60 degrees in the embodiment; an included angle b is formed between the flow guide tooth back 13 and the air outlet tooth surface 121 on two adjacent convex teeth 12, and the included angle b is an obtuse angle, preferably, the included angle b is 110 °, 120 ° and 130 °. In this embodiment, the air outlet tooth surface 121 is located on one side of the convex tooth 12 in the counterclockwise direction of the impeller body 1, the guide tooth back 13 is located on one side of the convex tooth 12 in the clockwise direction of the impeller body 1, and the motor drives the impeller body 1 to rotate in the clockwise direction during operation.

The impeller body 1 rotates to drive the air in the air passage 2 to rotate along with the rotation of the impeller body, and the air in the air passage 2 flows from the inner port 21 to the outer port 22 of the air passage 2 under the action of centrifugal force, so that the air flows out of the outer port 22 to enter a culture pond, the aeration and oxygenation are realized, meanwhile, negative pressure is formed in the air passage 2, and the air is sucked into the air passage 2 from the air inlet hole 111 to realize continuous aeration; further, because the existence of dogtooth 12, dogtooth 12 rotates and to push out its rotation route with water when impeller body 1 rotates, just also make the water pressure that dogtooth 12 direction of rotation rear position received reduce, give vent to anger flank of tooth 121 for being located the side at dogtooth 12 direction of rotation rear, therefore the outer port 22 of air flue 2 is relative with the less position of water pressure, the pressure that makes the air in the air flue 2 flow out from outer port 22 diminishes, make the air flow out from outer port 22 under the effect of centrifugal force more easily, just also improved the aeration quantity, can satisfy simultaneously and use in darker aquatic.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. The utility model provides an impeller of aeration oxygen-increasing machine, is including being discoid impeller body (1), be equipped with a plurality of air flues (2) in impeller body (1), the middle part of impeller body (1) has inlet port (111), inner port (21) and inlet port (111) intercommunication of air flue (2), its characterized in that, the border of impeller body (1) has a plurality of dogteeth (12), every dogtooth (12) all have gas outlet tooth face (121) along the same one side of the same circumferencial direction of impeller body (1), the position of air flue (2) corresponds with dogtooth (12) just outer port (22) of air flue (2) are located the gas outlet tooth face (121) that corresponds dogtooth (12), have water conservancy diversion back of tooth (13) on dogtooth (12), water conservancy diversion back of tooth (13) is located one side of dogtooth (12), gas outlet tooth face (121) are located the opposite side of dogtooth (12), two adjacent formation contained angle b between water conservancy diversion back of tooth (13) on dogtooth (12) and the flank of tooth (121) of giving vent to anger, contained angle b is the length that the length of obtuse angle and water conservancy diversion back of tooth (13) is greater than the flank of tooth (121) of giving vent to anger, air flue (2) are the arc, the camber of air flue (2) is from inside port (21) outside port (22) crescent.

2. An impeller of an aerator as claimed in claim 1, wherein said deflector back (13) is planar.

3. The impeller of the aerator as claimed in claim 2, wherein an included angle a is formed between the flow guide tooth back (13) of the convex tooth (12) and the gas outlet tooth surface (121), and the included angle a is an acute angle.

4. An impeller for an aerator according to any of the claims 1 to 3, characterized in that the cross section of the air channel (2) increases gradually from the inner port (21) to the outer port (22).

5. An impeller of an aeration aerator according to any one of claims 1 to 3, characterized in that the cross section of the air duct (2) is flat.

6. An impeller of an aerator as claimed in any one of claims 1 to 3, wherein a plurality of said convex teeth (12) and a plurality of said air passages (2) are arranged in a ring shape around the axis of the impeller body (1).

7. The impeller of the aerator as claimed in claim 6, wherein independent weight-reducing cavities (14) are arranged on the impeller body (1) between the adjacent air passages (2).

8. An impeller of an aerator according to any of the claims 1 to 3, characterized in that the impeller body (1) is integrally formed by casting.