CN111264458B

CN111264458B - Aerator impeller

Info

Publication number: CN111264458B
Application number: CN202010203913.9A
Authority: CN
Inventors: 郑卫兵
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-21
Filing date: 2020-03-21
Publication date: 2024-06-21
Anticipated expiration: 2040-03-21
Also published as: CN111264458A

Abstract

The invention relates to an aerator impeller which comprises a wheel disc and a plurality of blades arranged on the wheel disc, wherein a straight cylinder penetrating through the center of the wheel disc is fixed on the wheel disc, and the blades are distributed on the outer side wall of the wheel disc around the circumference of the straight cylinder; the novel rotary drum type rotary drum comprises a rotary drum body, and is characterized by further comprising an annular check ring and a sealing cover plate, wherein the annular check ring and the sealing cover plate are arranged on one side of the outer side wall of the rotary drum body, the annular check ring is arranged along the circumferential outer edge of the rotary drum body, the sealing cover plate is fixed on the side wall, away from the rotary drum body, of each blade, a cavity is jointly formed by the sealing cover plate, the annular check ring and the side wall of the straight drum body, the cavities are divided into a plurality of mixing chambers by a plurality of blades, a plurality of groups of water outlet holes are formed in the annular check ring, a plurality of groups of air inlets are formed in the rotary drum body, a plurality of water inlets are formed in the inner wall of the straight drum body, and the water inlets are communicated with the corresponding mixing chambers. When the impeller rotates, water continuously contacts and mixes with air newly entering the mixing chamber in the flowing process from the water inlet to the water outlet, so that the water flow is rich in air, the mixing degree of the water and the air is improved, and the oxygenation efficiency is higher.

Description

Aerator impeller

Technical Field

The invention relates to the technical field of aquaculture, in particular to an aerator impeller.

Background

The aerator is a relatively common machine for fishery breeding, and is a device for quickly transferring oxygen in the air into a breeding water body by driving a working part through a motor or a diesel engine and other power sources.

At present, chinese patent with publication number CN201536562U discloses an aerator impeller, which comprises a wheel body and a spoke, wherein the spoke is firmly installed on the wheel body, the wheel body comprises a blade grid and a wheel disc, the blade grid is arranged on the outer wall of the wheel disc and is a group of blades with the same shape, equal spacing and rotation symmetry, the blades are a continuous curved surface, and the wheel disc is a rotation body.

In the use process of the impeller of the aerator, the wheel disc floats on the water surface, the blades are immersed in the water, the wheel disc is driven to rotate in the water by a power source such as a motor, and the blades stir the water outwards to form a surge in the rotation process of the wheel disc, so that the contact between oxygen in the air and the water body is increased. However, although the impeller of the aerator can push a large amount of water to move, the contact time of the water body and the air is short, and the air which can actually enter the water body is limited, so that the oxygenation effect is poor.

Disclosure of Invention

In view of the shortcomings of the prior art, one of the purposes of the present invention is to provide an aerator impeller which has the advantage of improving the aeration efficiency.

The above object of the present invention is achieved by the following technical solutions: the impeller of the aerator comprises a wheel disc and a plurality of blades arranged on the wheel disc, wherein a straight cylinder penetrating through the center of the wheel disc is fixed on the wheel disc, and the blades are distributed on the outer side wall of the wheel disc around the circumference of the straight cylinder; the device also comprises an annular check ring and a cover plate which are positioned on one side of the outer side wall of the wheel disc, wherein the annular check ring is arranged along the circumferential outer edge of the wheel disc, the cover plate is fixed on the side wall of the blade away from the wheel disc, the cover plate, the annular check ring and the straight side wall jointly enclose a cavity, a plurality of blades divide the cavity into a plurality of mixing chambers, the annular baffle is provided with a plurality of groups of water outlets communicated with the cavities, the water outlets of the plurality of groups are respectively in one-to-one correspondence with the mixing chambers, the wheel disc is provided with a plurality of groups of air inlets communicated with the cavities, the air inlets of the plurality of groups are respectively in one-to-one correspondence with the mixing chambers, the cover plate is provided with a plurality of groups of water inlets, the water inlets of the plurality of groups of water inlets are respectively in one-to-one correspondence with the mixing chambers, and the water inlets are respectively communicated with the corresponding mixing chambers.

Through adopting above-mentioned technical scheme, when the impeller rotates, water in the mixing chamber is thrown away from the apopore under centrifugal force effect, and outside water rethread water inlet constantly supplements in the mixing chamber, the air enters into the mixing chamber through the air inlet, water is constantly with the air contact and the mixing of new entering into the mixing chamber to the in-process that the apopore flows from the water inlet, make in the rivers air-enriched, can once again with external air contact after the water is thrown away from the impeller again, further improve the degree of mixing of water and air, make oxygenation efficiency higher.

The present invention may be further configured in a preferred example to: the blade is provided with a plurality of water passing holes which are uniformly distributed along the length direction of the blade.

Through adopting above-mentioned technical scheme, water hole intercommunication two adjacent mixing chambers, along with the rotation of impeller, the blade can promote the water of mixing chamber and rotate together, and in the water hole got into adjacent mixing chamber was crossed to the water in the mixing chamber, stirs the water in the adjacent mixing chamber, makes the hydroenergy of mixing chamber have better mixing effect to the air.

The present invention may be further configured in a preferred example to: the water passing holes are positioned on one side of the corresponding blade close to the wheel disc.

Through adopting above-mentioned technical scheme, open on rim plate one side has the air inlet, and the water hole is when the position of rim plate is close to on the blade more, and the water that is close to rim plate part in the mixing chamber can flow to adjacent mixing chamber through the water hole, consequently at this part water in the in-process that flows more mix into the air that enters into in the mixing chamber, further improves the mixing effect with oxygen.

The present invention may be further configured in a preferred example to: one side of the blade is a high-pressure surface, the other side of the blade is a negative-pressure surface, and the air inlet is close to the blade which faces the corresponding mixing chamber with the negative-pressure surface.

Through adopting above-mentioned technical scheme, the high pressure face of blade is used for promoting water, and the water pressure that the high pressure face received is great, and the water pressure that the negative pressure face received is then very weak, and the water of blade high pressure face one side is impressed blade low pressure face one side through the water hole to form rivers, the air inlet is close to the negative pressure face of blade after, and rivers can produce the impact effect to the air that enters into the mixing chamber from the air inlet, accelerates the mixture of air and water.

The present invention may be further configured in a preferred example to: the blade is the arc setting, the tip that the blade kept away from straight section of thick bamboo is crooked to negative pressure face one side.

Through adopting above-mentioned technical scheme, the blade has the guide effect to being in the water in the mixing chamber, and the blade still can guide water to delivery port one side motion when promoting water rotation, and the centrifugal force that the cooperation rotation produced can reduce the resistance that the blade received when rotating, reduces the power requirement to the motor that is used for driving impeller pivoted.

The present invention may be further configured in a preferred example to: the outlet openings are close to the vanes facing the respective mixing chamber with a high pressure surface and the outlet openings are remote from the vanes facing the respective mixing chamber with a negative pressure surface.

Through adopting above-mentioned technical scheme, the apopore can not cover the circumference lateral wall of annular retaining ring completely, but is in the one side that is close to the blade high pressure face of corresponding mixing chamber, and the water that is close to negative pressure face one side in the mixing chamber just needs to remove to mixing chamber near negative pressure face one side from the apopore outflow, further improves the mobility of water in the mixing chamber.

The present invention may be further configured in a preferred example to: welding strips are fixed on two sides of the blade, one welding strip is fixedly connected with the cover plate through welding, and the other welding strip is fixedly connected with the wheel disc through welding.

Through adopting above-mentioned technical scheme, strengthen the connection between closing cap board and the rim plate through the blade, make whole impeller form a whole, improve impeller overall structure's stability in the use.

The present invention may be further configured in a preferred example to: the water inlets on the sealing cover plate are close to the center of the sealing cover plate, all the water inlets extend to each other and form a notch at the center of the sealing cover plate, the straight cylinder penetrates through the notch, a plurality of water inlet channels are formed in the inner wall of the straight cylinder, and the water inlet channels are in one-to-one correspondence with the mixing chambers.

Through adopting above-mentioned technical scheme, increase outside water and enter into the passageway in the mixing chamber, improve the speed of mixing chamber intaking, make the impeller can exert an influence to more water to accelerate oxygenation efficiency.

The present invention may be further configured in a preferred example to: the water inlets are positioned at one side of the corresponding mixing chamber close to the negative pressure surface, the water inlets in the same group are distributed along the length direction of the blades, the air inlets communicated with the same mixing chamber are arranged corresponding to the water inlets, a flow guiding piece is connected between the side wall of the air inlet close to the corresponding negative pressure surface and the side wall of the corresponding water inlet close to the corresponding negative pressure surface, and the middle part of the flow guiding piece protrudes towards one side of the corresponding high pressure surface.

Through adopting above-mentioned technical scheme, the water inlet sets up along blade length direction, and the quantity of water inlet can set up more for the area sum of water inlet is bigger, makes in water can more enter into the mixing chamber, improves oxygenation efficiency.

The present invention may be further configured in a preferred example to: the side of the sealing cover plate, which is away from the mixing chamber, is provided with a guide piece covered on the water inlet, the side wall of the guide piece facing the rotation direction of the impeller is provided with a water diversion channel, and the water diversion channel is communicated with the corresponding mixing chamber.

Through adopting above-mentioned technical scheme, the guide is used for increasing the area of contact with water at impeller rotation in-process to with the water under the interception through diversion passageway direction mixing chamber, increase the inflow in the mixing chamber, and can accelerate water velocity, further improve oxygenation efficiency.

In summary, the present invention includes at least one of the following beneficial technical effects:

1. by arranging the annular retainer ring and the sealing cover plate, a mixing chamber is formed in the impeller, so that water and air can be fully mixed in the mixing chamber, and the oxygenation efficiency is improved;

2. Through arranging the water passing holes, the fluidity of the water body in the impeller is improved, the contact time of water and air is increased, and the oxygenation efficiency is further improved;

3. through setting up curved blade, make things convenient for the blade to promote water, the resistance that receives when reducing the blade rotation reduces the requirement to drive power.

Drawings

Fig. 1 is a schematic structural view at a first view angle in embodiment 1;

fig. 2 is a schematic structural view at a second view angle in embodiment 1;

FIG. 3 is a partial exploded view of example 1;

FIG. 4 is a cross-sectional view in example 1;

FIG. 5 is a schematic overall structure of embodiment 2;

FIG. 6 is a partial cross-sectional view of example 2;

fig. 7 is an enlarged view of a in fig. 6.

In the figure, 1, a wheel disc; 11. an air inlet; 2. a blade; 21. a water passing hole; 22. a high pressure surface; 23. a negative pressure surface; 3. a straight cylinder; 31. a water inlet channel; 4. a mounting base; 5. an annular retainer ring; 51. a water outlet hole; 6. a plate; 61. a water inlet; 62. a flow guide; 621. a first deflector; 622. a second deflector; 63. a guide; 631. a drainage channel; 7. a mixing chamber; 8. welding strips; 9. and a connecting ring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example 1: the invention discloses an aerator impeller, which is shown in fig. 1 and comprises a wheel disc 1 and a straight cylinder 3. The rim plate 1 is a conical cylinder, the straight cylinder 3 and the rim plate 1 are coaxially arranged, one end of the straight cylinder 3 penetrates through the small end of the rim plate 1, and the circumferential outer side wall of the straight cylinder 3 and the inner diameter of the small end of the rim plate 1 are welded together. The other end of the straight cylinder 3 is positioned in the large end of the wheel disc 1, a connecting ring 9 is arranged on the circumferential outer side wall of the large end of the straight cylinder 3, the inner ring side wall of the connecting ring 9 is welded on the circumferential outer side wall of the straight cylinder 3, and the outer ring edge of the connecting ring 9 is welded and fixed with the side wall of the wheel disc 1. The straight cylinder 3 is fixed with mount pad 4 on the tip circumference inner wall that is close to the rim plate 1 big end, and mount pad 4 is used for the output shaft of motor, and when the motor starts, the output shaft of motor can drive rim plate 1 through straight cylinder 3 and rotate.

Referring to fig. 1 and 2, an annular retainer ring 5 arranged along the circumferential edge of the wheel disc 1 is fixed on one side of the wheel disc 1 facing away from the connecting ring 9, a plurality of blades 2 are arranged in the annular retainer ring 5, and the blades 2 are uniformly distributed circumferentially around the small end of the straight cylinder 3. The blade 2 is arc, and the one end of blade 2 welds on the tip lateral wall that straight section of thick bamboo 3 is close to the rim plate 1 tip, and the other end of blade 2 welds on the inner wall of annular retaining ring 5. It should be noted that, in order to reduce the resistance to rotation of the blades 2, the middle portions of the blades 2 should be protruded toward the rotation direction of the entire impeller. The side of the blade 2 facing in the direction of rotation is the high-pressure surface 22, while the other side of the blade 2 is the negative-pressure surface 23. The side of the blade 2 remote from the disk 1 is covered with a cover plate. The shape of the cover plate is similar to that of the wheel disc 1, the outer side edge of the cover plate and one end, far away from the wheel disc 1, of the annular retainer ring 5 are welded and fixed, the inner side edge of the cover plate is close to the end, close to the small end of the wheel disc 1, of the straight cylinder 3, and an interlayer for placing the blades 2 is formed between the cover plate and the wheel disc 1.

Referring to fig. 2 and 3, welding strips 8 are arranged on two sides of the blade 2, the welding strips 8 and the blade 2 are integrally formed, one side of the welding strips 8 on the blade 2 is welded on the wheel disc 1, and the other side of the welding strips 8 provides welding positions for the cover plate. The cover plate is formed by a plurality of plates 6, and the shapes of the plurality of plates 6 are consistent. A plate block 6 is arranged between the adjacent blades 2, two sides of the plate block 6 are respectively welded on welding strips 8 of the corresponding blades 2 on two sides, one end part of the plate block 6 is welded on the corresponding position of the annular check ring 5, the end parts of all the plate blocks 6 far away from the annular check ring 5 are sequentially connected and enclose a notch, and the end part of the straight cylinder 3 close to the small end of the wheel disc 1 penetrates through the notch. The blades 2 are respectively fixed with the wheel disc 1, the annular retainer ring 5, the cover plate and the straight cylinder 3, so that the whole impeller is formed into a firm whole, and the phenomenon that the structure of the impeller is scattered in the rotation process is avoided.

Referring to fig. 3 and 4, the plate 6, the two blades 2 connected to the plate 6, the annular retainer 5 and the wheel disc 1 together define a mixing chamber 7. The plate 6 is far away from the end of the annular retainer ring 5 and forms a water inlet 61 to the interval of the outer side wall of the straight cylinder 3, and a plurality of water inlet channels 31 corresponding to the mixing chambers 7 one by one are further formed in the end face of the end of the straight cylinder 3, which is close to the small end of the wheel disc 1, and the water inlet channels 31 can be matched with the water inlet 61 to improve the water inlet efficiency of the corresponding mixing chambers 7. The blade 2 is provided with a plurality of water passing holes 21, and the water passing holes 21 are uniformly distributed along the length direction of the blade 2. The water passing holes 21 are positioned on one side of the blade 2 close to the wheel disc 1. The annular retainer ring 5 is provided with a plurality of groups of water outlet holes 51 communicated with the cavities, the water outlet holes 51 of the groups are respectively in one-to-one correspondence with the mixing chambers 7, the water outlet holes 51 are close to the blades 2 facing the corresponding mixing chambers 7 through the high-pressure surfaces 22, and the water outlet holes 51 are far away from the blades 2 facing the corresponding mixing chambers 7 through the negative-pressure surfaces 23. The wheel disc 1 is provided with a plurality of groups of air inlets 11 communicated with the cavities, the plurality of groups of air inlets 11 are respectively in one-to-one correspondence with the plurality of mixing chambers 7, the air inlets 11 are close to the blades 2 which face the corresponding mixing chambers 7 through the negative pressure surface 23, one group of air inlets 11 consists of a plurality of air inlets, and the plurality of air inlets of the same group are uniformly distributed along the length direction of the similar blades 2.

In practice, the impeller is placed in a body of water such as a pond with the cover plate facing downwards, wherein the inlet 61 and inlet channel 31 are submerged in the water, with part of the inlet 11 above the water surface, and the outlet 51 preferably also being maintained above the water surface. When the motor works, the whole impeller rotates, water in the impeller is thrown out from the water outlet hole 51 under the action of centrifugal force, and negative pressure is generated in the mixing chamber 7 at a region close to the negative pressure surface 23. So that water is pressed into the mixing chamber 7 from the water inlet 61 and the corresponding water inlet channel 31 and water on the side of the high pressure side 22 of the blade 2 also enters the mixing chamber 7 on the side of the negative pressure side 23 of the blade 2 through the water passing holes 21. Air is also pressed into the mixing chamber 7 through the air inlet 11, the air and water which are flushed into the mixing chamber 7 together are mixed together in the process of moving to the water outlet 51, and in addition, when water flow is thrown out of the impeller from the water outlet 51, the water flow is in direct contact with the outside air, so that when the water flow falls into water bodies such as ponds again, enough air can be brought back, and the oxygen content in the water bodies is improved. The impeller is small in friction force when rotating in water, the power requirement on the motor is low, and the cost is well controlled.

Example 2: referring to fig. 5, this embodiment is different from embodiment 1 in that: the end of the plate 6 remote from the annular collar 5 continues along the length of the blade 2 and is welded to the circumferential outer side wall of the barrel 3. There are a plurality of water inlets 61 on one plate 6, a plurality of water inlets 61 on the same plate 6 are all close to adjacent blades 2 facing the corresponding mixing chamber 7 with the negative pressure surface 23, and a plurality of water inlets 61 on the same plate 6 are arranged along the length direction of the adjacent blades 2. Each water inlet 61 is covered with a guide member 63, the guide member 63 is positioned on one side of the cover plate away from the mixing chamber 7, the guide member 63 is in a triangular cone shape, one side surface of the guide member 63 faces the rotation direction of the impeller, and a water diversion channel communicated with the corresponding water inlet 61 is formed in the side wall.

Referring to fig. 6 and 7, the air inlets 11 and the water inlets 61 communicated with the same mixing chamber 7 are in one-to-one correspondence, a guide piece 62 is connected between the air inlets 11 and the corresponding water inlets 61, the guide piece 62 is composed of a first guide plate 621 and a second guide plate 622, the length of the first guide plate 621 is larger than that of the second guide plate 622, one end of the first guide plate 621 is connected to the side wall of the corresponding water inlet 61 near the corresponding negative pressure surface 23, the other end of the first guide plate 621 is inclined towards one side of the mixing chamber 7 near the high pressure surface 22 and is connected with one end of the second guide plate 622, and the other end of the second guide plate 622 is connected to the side wall of the corresponding air inlet 11 near the corresponding negative pressure surface 23.

When the impeller starts to rotate, since the drainage channel 631 will not block the water on the rotation path, the water in the water body will more easily enter the mixing chamber 7 through the drainage channel 631, the air pressure in the mixing chamber 7 will be lower due to the flow of the water in the mixing chamber 7, the external air will be pressed into the mixing chamber 7 from the air inlet 11, then the water flow and the air flow will be converged together under the guiding action of the first guide plate 621 and the second guide plate 622, so that the air will be mixed into the water flow more fully and intensely.

The embodiments of the present invention are all preferred embodiments of the present invention, and are not intended to limit the scope of the present invention in this way, therefore: all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.

Claims

1. The utility model provides an aerator impeller, includes rim plate (1) and a plurality of blade (2) of installing on rim plate (1), its characterized in that: a straight cylinder (3) penetrating through the center of the wheel disc (1) is fixed on the wheel disc (1), and a plurality of blades (2) are distributed on the outer side wall of the wheel disc (1) around the circumference of the straight cylinder (3); the novel turbine rotor disc also comprises an annular check ring (5) and a cover plate, wherein the annular check ring (5) is positioned on one side of the outer side wall of the wheel disc (1), the annular check ring (5) is arranged along the circumferential outer edge of the wheel disc (1), the cover plate is fixed on the side wall of the blade (2) far away from the wheel disc (1), the sealing cover plate, the annular retainer ring (5) and the side wall of the straight cylinder (3) jointly enclose a cavity, the cavity is divided into a plurality of mixing chambers (7) by a plurality of blades (2), a plurality of groups of water outlet holes (51) communicated with the cavity are arranged on the annular retainer ring (5), the water outlet holes (51) are respectively in one-to-one correspondence with the mixing chambers (7), a plurality of groups of air inlets (11) communicated with the cavities are formed in the wheel disc (1), the plurality of groups of air inlets (11) are respectively in one-to-one correspondence with the mixing chambers (7), a plurality of groups of water inlets (61) are formed in the cover plate, the plurality of groups of water inlets (61) are respectively in one-to-one correspondence with the mixing chambers (7), the water inlets (61) are respectively communicated with the corresponding mixing chambers (7), one side of each blade (2) is a high-pressure surface (22), the other side of each blade (2) is a negative-pressure surface (23), the air inlets (11) are close to the blades (2) which face the corresponding mixing chambers (7) through the negative-pressure surfaces (23), the blades (2) are in arc-shaped arrangement, the end of the blade (2) far away from the straight cylinder (3) is bent towards the negative pressure surface (23), the water outlet holes (51) are close to the blade (2) which faces the corresponding mixing chamber (7) through the high pressure surface (22), the water outlet holes (51) are far away from the blade (2) which faces the corresponding mixing chamber (7) through the negative pressure surface (23), welding strips (8) are fixed on two sides of the blade (2), one of the welding strips (8) is fixedly connected with the sealing cover plate through welding, the other welding strip (8) is fixedly connected with the wheel disc (1) through welding, the water inlet (61) is positioned on one side of the corresponding mixing chamber (7) close to the negative pressure surface (23), the water inlet (61) of the same group is distributed along the length direction of the blade (2), the air inlet (11) communicated with the same mixing chamber (7) is correspondingly arranged with the water inlet (61), a guide piece (62) is connected between the side wall of the air inlet (11) close to the corresponding negative pressure surface (23) and the side wall of the corresponding water inlet (61) close to the corresponding negative pressure surface (23), the middle part (62) is fixedly connected with the wheel disc (1) through welding, the water inlet (61) is positioned on one side of the corresponding high pressure surface (22) close to the sealing cover (7), the side wall of the guide piece (63) facing the rotation direction of the impeller is provided with a drainage channel (631), and the drainage channel (631) is communicated with the corresponding mixing chamber (7).

2. An aerator impeller according to claim 1, wherein: the blade (2) is provided with a plurality of water passing holes (21), and the water passing holes (21) are uniformly distributed along the length direction of the blade (2).

3. An aerator impeller according to claim 2, wherein: the water passing holes (21) are arranged on one side of the blade (2) close to the wheel disc (1).

4. An aerator impeller according to claim 1, wherein: the water inlets (61) on the sealing cover plate are all close to the center of the sealing cover plate, all the water inlets (61) extend to each other and form a gap at the center of the sealing cover plate, the straight cylinder (3) penetrates through the gap, a plurality of water inlet channels (31) are formed in the inner wall of the straight cylinder (3), and the water inlet channels (31) are in one-to-one correspondence with the mixing chambers (7) respectively.