CN106359244B

CN106359244B - Submersible aerator

Info

Publication number: CN106359244B
Application number: CN201611014817.XA
Authority: CN
Inventors: 许海琴
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-11-18
Filing date: 2016-11-18
Publication date: 2022-06-21
Anticipated expiration: 2036-11-18
Also published as: CN106359244A

Abstract

The invention discloses a submersible aerator which comprises a motor, a shell and an impeller, wherein the shell of the motor is fixedly connected with the shell, a cavity is formed in the shell, an air inlet hole is formed in the side surface of the shell, and a connecting air hole is formed in the center of the bottom of the shell; the impeller comprises an impeller body and a flange plate, a plurality of through channels are arranged in the impeller body, a through hole is formed in the center of the flange plate, and the through hole is communicated with the through channels; a circular ring bulge is arranged on the bottom surface of the shell in a downward extending manner; the diameter of the crankshaft is smaller than that of the connecting air hole, the diameter of the mechanical oil seal central hole and the diameter of the through hole, and an interval space is formed; the air inlet hole, the cavity of the shell, the spacing space and the plurality of through channels form an air flow channel together. According to the submersible aerator, when air is discharged into seawater through the air flow channel, the air loss is low, the aeration effect is good, the size of the air flow channel can be adjusted during production, and the use types of products are increased.

Description

Submersible aerator

Technical Field

The invention relates to an oxygen increasing pump, in particular to a submersible oxygen increasing machine.

Background

The oxygenation pump, also called as an air pump, presses air into water to ensure that oxygen in the air is fully contacted with water so as to achieve the aims of melting partial oxygen into the water, increasing the oxygen content of the water and ensuring the growth of fishes in the water. The ornamental fish tank is used as large as a fish pond. The working principle is as follows: when the impeller rotates, the vane impels the air to move forwards and outwards under the action of centrifugal force, so as to form a series of spiral movements, the air between the blades of the impeller rotates in a spiral accelerating way and extrudes the air outside the pump body into the side groove (sucked by the air suction port), and after the air enters the side channel, the air is compressed and then returns to the space between the blades of the impeller to rotate in an accelerating way again. As the air follows a helical path through the impeller and side channels, each impeller blade increases in compression and acceleration, and as rotation progresses, the kinetic energy of the gas increases, causing a further increase in the pressure of the gas passing along the side channels. When the air reaches the junction of the side groove and the discharge flange (the side channel narrows at the outlet), the air is expelled from the pump body by the expression vanes.

The existing oxygenation pump generally comprises a motor, a pump body, a rotating shaft and an impeller, wherein the rotating shaft is respectively connected with the motor and the impeller, the rotating shaft is a hollow shaft, an air inlet hole and an air outlet hole are formed in the rotating shaft in the radial direction of the rotating shaft, the air inlet hole and the air outlet hole are respectively communicated with a cavity in the center of the rotating shaft, air enters from the air inlet hole and is finally discharged from the air outlet hole through the cavity in the rotating shaft during work, and the air outlet hole and the air inlet hole are axially vertical to the central line of the cavity, so that the flow path line of the air has two turns, the air suction is greatly lost, and the oxygenation efficiency of the oxygenation pump is poor; in addition, because of the limitation of production cost, the diameters of the motor rotating shafts of the oxygenation pumps with various powers are all standard, so that the aperture of the cavity in the rotating shaft is limited, and a larger aperture cannot be obtained, so that the air quantity in a unit area is increased, and the oxygenation effect of the oxygenation pump is limited.

Disclosure of Invention

The invention aims to provide a submersible aerator which can adjust the space size of an air channel to obtain the most reasonable aeration quantity and realize the optimal aeration effect.

In order to solve the technical problems, the invention provides a technical solution of a submersible aerator, which comprises the following components:

a submersible aerator comprises a motor, a shell and an impeller, wherein the shell of the motor is fixedly connected with the shell, a crankshaft of the motor penetrates through the center of the shell and extends to the outer side of the shell so as to be connected with the impeller, a cavity is formed in the shell, an air inlet hole is formed in the side surface of the shell, and a connecting air hole is formed in the center of the bottom of the shell; the impeller comprises an impeller body and a flange plate arranged at the center of the top surface of the impeller body, a plurality of through channels are arranged in the impeller body, a through hole is arranged at the center of the flange plate, and the through hole is communicated with the through channels; a circular ring bulge is arranged on the bottom surface of the shell in a downward extending manner, the circular ring bulge is coaxial with the connecting air hole, the diameter of the inner wall of the circular ring bulge is larger than the aperture of the connecting air hole, a mechanical oil seal is arranged between the flange plate and the circular ring bulge, the outer wall of the mechanical oil seal is respectively tightly matched with the inner wall of the circular ring bulge and the inner wall of the flange plate, meanwhile, the upper end of the mechanical oil seal is tightly matched with the bottom surface of a groove formed by the circular ring bulge, and the lower end of the mechanical oil seal is tightly matched with the bottom surface of the groove formed by the flange plate; the shaft penetrates through the connecting air hole, the central hole of the mechanical oil seal and the through hole in the center of the flange plate in sequence and finally penetrates through the key groove hole in the bottom of the impeller body and is exposed outside the key groove hole, the shaft, the impeller, the mechanical oil seal and the shell are fixedly connected by screwing the nut and the shaft, the diameter of the shaft is smaller than that of the connecting air hole, that of the central hole of the mechanical oil seal and that of the through hole, and a spacing space is formed between the outer wall of the shaft and the inner wall of the connecting air hole, that of the central hole of the mechanical oil seal and that of the through hole; the air inlet hole, the cavity of the shell, the spacing space and the plurality of through channels form an air flow channel together.

The impeller comprises an impeller body with a hollow cavity and a flange plate arranged at the center of the top surface of the impeller body, a plurality of triangle-like blades are uniformly distributed on the peripheral surface of the impeller body, one vertex angle of each triangle-like blade faces the outer side of the impeller body, two sides of the vertex angle are respectively a side A and a side B, a plurality of involute-shaped flow guide ribs which are consistent with the number of the triangle-like blades and are in one-to-one correspondence with the periphery of the inner wall of a through hole of the flange plate are uniformly distributed in the hollow cavity of the impeller body by taking the periphery of a certain distance away from the inner wall of the through hole as a starting point, the top surface and the bottom surface of each involute-shaped flow guide rib are respectively and integrally attached with the top surface and the bottom surface of the hollow cavity of the impeller body, a public copolymer water cavity is formed between the through hole of the flange plate and the starting points of the involute-shaped flow guide ribs, and a through channel is formed between two adjacent involute-shaped flow guide ribs, public copolymerization water cavity link up with each link up the passageway, link up the passageway inwards with the through-hole intercommunication at ring flange center, outwards extend and link up to the impeller body outer peripheral face between two class triangle-shaped blades and the side A of class triangle-shaped blade, the last edge and the lower edge of side B are equipped with the chamfer respectively, have formed a closed angle between two chamfers, set up the fillet on the closed angle.

The side B is connected with the corresponding involute flow guide rib, the track of the side B is a parabola, and the parabola is the extension of the involute flow guide rib.

The invention can achieve the technical effects that:

compared with the prior art, the submersible aerator adopts the side edge B with the parabolic track as the water pushing end surface of the impeller and is respectively provided with the chamfer angle and the fillet angle, so that the resistance between the side edge B and water is greatly reduced, and the motor has smaller load and longer service life during operation;

compared with the prior art, when the submersible aerator is used for processing parts, the air inlet hole of the shell, the cavity of the shell, the connecting air hole, the central hole of the mechanical oil seal, the through hole of the flange plate and the plurality of through channels can be subjected to size adjustment according to the actual use condition of a customer, so that the size of the spacing space can be adjusted, the air suction amount can be adjusted finally, and the optimal use effect is achieved;

compared with the prior art, the submersible aerator has the advantages that when the impeller runs, the side B cuts water flow, and when air flows to the junction between the side B and the impeller body from the through channel, because the track of the side B of the triangle-like blade extends outwards along the involute-shaped flow guide rib, the air can be naturally discharged out of the impeller along the cut water flow, and the air resistance is reduced; in addition, after the air is discharged into the cavity of the shell from the air inlet, the air directly enters the plurality of through channels through the spacing space and is finally discharged into the water, the whole through channel is smooth and has no corner, and the air loss is reduced to the minimum.

Drawings

The invention is described in further detail below with reference to the following figures and embodiments:

FIG. 1 is a perspective view of the submersible aerator of the present invention;

FIG. 2 is a cross-sectional view of the submersible aerator of the present invention;

FIG. 3 is an exploded perspective view of the submersible aerator of the present invention;

FIG. 4 is a top view of the blades of the submersible aerator of the present invention;

FIG. 5 is a lower structural view of the blades of the submersible aerator of the present invention;

FIG. 6 is a schematic structural view of a mechanical oil seal of the submersible aerator according to the present invention;

FIG. 7 is a perspective view of the housing of the submersible aerator of the present invention;

fig. 8 is a perspective view of the impeller of the submersible aerator of the present invention.

Detailed Description

Referring to fig. 1 to 8, the invention provides a submersible aerator, which comprises a motor 1, a housing 2 and an impeller 3, wherein a shell of the motor 1 is fixedly connected with the housing 2, a crankshaft 4 of the motor 1 penetrates through the center of the housing 2 and extends to the outer side of the housing 2 so as to be connected with the impeller 3, an oil seal is arranged between the crankshaft 3 and the housing 2, a cavity 5 is arranged in the housing 2, a cover 28 is arranged at the top of the housing 2, an air inlet hole 6 is arranged on the side surface of the housing 2, an air pipe 25 is connected to the air inlet hole 6, and a connecting air hole 7 is arranged at the center of the bottom of the housing 2; the impeller 3 comprises an impeller body 8 and a flange 9 arranged at the center of the top surface of the impeller body 8, a plurality of through channels 10 are arranged in the impeller body 8, a through hole 11 is arranged at the center of the flange 9, and the through hole 11 is communicated with the through channels 10; the bottom surface of the shell 2 extends downwards to be provided with a circular ring bulge 12, the circular ring bulge 12 and a connecting air hole 7 are coaxial, the diameter of the inner wall of the circular ring bulge 12 is larger than the aperture of the connecting air hole 7, a mechanical oil seal 24 is arranged between the flange plate 9 and the circular ring bulge 12, the outer wall of the mechanical oil seal 24 is respectively and tightly matched with the inner wall of the circular ring bulge 12 and the inner wall of the flange plate 9, meanwhile, the upper end of the mechanical oil seal 24 is tightly matched with the bottom surface of a groove formed by the circular ring bulge 12, the lower end of the mechanical oil seal is tightly matched with the bottom surface of the groove formed by the flange plate 9, the diameter of a central hole 26 of the mechanical oil seal 24 is smaller than the diameter of the crankshaft 4, the mechanical oil seal 24 with the structure prevents seawater from being filled into the shell 2 from a gap between the impeller 3 and the shell 2, and simultaneously ensures the communication between a cavity 5 in the shell 2 and a through hole 11 of the impeller 3; the crankshaft 4 sequentially penetrates through the connecting air hole 7, a central hole 26 of the mechanical oil seal 24 and a through hole 11 in the center of the flange plate 9 and finally penetrates through a key slot hole 22 at the bottom of the impeller body 8 and is exposed outside the key slot hole 22, the crankshaft 4, the impeller 3, the mechanical oil seal 24 and the shell 2 are fixedly connected by screwing a nut 27 with the crankshaft 4, the diameter of the crankshaft 4 is smaller than that of the connecting air hole 7, the diameter of the central hole 26 of the mechanical oil seal 24 and the diameter of the through hole 11, and a spacing space is formed between the outer wall of the crankshaft 3 and the inner wall of the connecting air hole 7, the inner wall of the central hole 26 of the mechanical oil seal 24 and the inner wall of the through hole 11; the air inlet 6, the cavity 5 of the housing 2, the intermediate space and the plurality of through-channels 10 together form an air flow channel.

The impeller 3 comprises an impeller body 8 with a hollow cavity 31 and a flange 9 arranged at the center of the top surface of the impeller body 8, the hollow cavity 31 is communicated with a through hole 11 of the flange 9 inwards and is communicated with the outer circumferential surface of the impeller body 8 outwards, the impeller body 8 can be divided into an upper part and a lower part, fig. 4 is a structure diagram of the upper part of the impeller body, therefore, the through hole 11 can be divided into through channels 10, fig. 5 is a structure diagram of the lower part of the impeller body, therefore, the center of the lower part of the impeller body 8 is provided with a key slot hole 22, a motor shaft 4 of a motor 1 is arranged in the key slot hole 22, a plurality of triangle-like blades 13 are uniformly distributed on the outer circumferential surface 35 of the impeller body 8, one vertex angle 14 of each triangle-like blade 13 faces the outer side of the impeller body 8, two sides of the vertex angle 14 are a side edge A15 and a side edge B16 respectively, and the periphery 32 in a certain distance (the distance range of 1-3cm) from the inner wall of the through hole 11 of the flange 9 is taken as a starting point in the hollow cavity 31 of the impeller body 8 and faces the periphery 32 A plurality of involute-shaped flow guiding ribs 17 which are consistent with the number of the triangle-like blades 13 and correspond to one another are uniformly distributed on the peripheral surface 35 of the impeller body 8, thus, a public water polymerization cavity 33 is formed between the through hole 11 of the flange plate 9 and the starting point of the involute-shaped flow guiding ribs 17, the top surface and the bottom surface of each involute-shaped flow guiding rib 17 are respectively and integrally jointed with the top surface and the bottom surface of the hollow cavity 31 of the impeller body 8, a through channel 10 is formed between two adjacent involute-shaped flow guiding ribs 17, water in the public water collection and water in the involute-shaped flow guiding ribs 33 finally form a plurality of branches to enter each through channel 10, the end surfaces of the starting points 34 of the involute-shaped flow guiding ribs jointly form a circular track which is concentric with the through hole 11 of the flange plate 9, an air outlet 23 is formed at the tail end of each through channel 10, each air outlet 23 exhausts in one direction to form a spiral outward airflow, the through channel 10 is communicated with the through hole 11 at the center of the flange 9 inwards, extends outwards to penetrate through the peripheral surface 35 of the impeller body 8 between the two similar triangular blades 13 and the side edge A15 of the similar triangular blade 13, chamfers 18 are respectively arranged on the upper edge and the lower edge of the side edge B16, a sharp corner is formed between the two chamfers 18, and a fillet 19 is arranged on the sharp corner.

The side B16 is connected with the corresponding involute guide rib 17, and the track of the side B16 is a parabola, which is an extension of the involute guide rib 17.

In the production process, in order to obtain the effects of shearing, stirring, pushing and the like for the seawater optimally, the chamfer angle range of the upper edge 29 and the lower edge 30 of the side edge B16 is controlled to be between 20 and 70 degrees. The upper edge of the side B16 is the intersection line of the angle between the side B16 and the top surface of the triangle-like blade 13, and the lower edge is the intersection line of the angle between the side B16 and the bottom surface of the triangle-like blade 13.

The working principle of the submersible aerator of the embodiment is explained as follows:

when the submersible aerator is used for a shallow water type sea pond, the bracket base is arranged on the shell 2, then the whole aerator pump is placed into the sea pond, and the bracket base is positioned at the bottom of the sea pond and plays a role in supporting the aerator pump; when the deep-water type sea pond is used, the floating ball can be arranged on the oxygenation pump, the floating ball floats on the water surface, and the whole oxygenation pump is positioned in water, so that the oxygenation work of the sea pond is realized.

When the seawater desalination device works, a pipe needs to be added, one end of the pipe is connected with an air inlet 6 on a shell 2, the other end of the pipe extends out of a water surface and is communicated with outside air, firstly, the shell 2 and an impeller 3 are filled with seawater, a motor 1 is started, the motor 1 drives the impeller 3 to rotate, water in a through channel 10 and the shell 2 is thrown out of the impeller 3, at the moment, negative pressure is formed in the through channel 10 of the impeller 3, air is continuously sucked into a cavity 5 of the shell 2, then the air is conveyed to the through channel 10 through a through hole 11 of a connecting air hole 7 and a flange 9, finally the impeller 3 is discharged and dissolved in the seawater, in the process, a triangular blade 13 of the impeller 3 continuously shears, stirs and impels the seawater, in order to reduce the frictional resistance between the blade 13 and the seawater and reduce the load of the motor 1, the upper edge and the lower edge of the cutting end face of the blade 13 and the seawater, namely the upper edge and the lower edge of a side edge B16 are respectively processed into chamfered faces 18, and the sharp corners formed are rounded 19, to enable the water flow to achieve a flexible separation when passing the side edge B16, and flows in a streamlined manner over the top and bottom surfaces 20 and 21 of the triangular-like vanes 13, when the water flows past the end of the triangular-like vanes 13, which end is in fact the side a15, the two flows are combined into one, and an outlet of the through channel 10, namely the last gateway of the air discharged to the seawater, is arranged between the tail end side A15 of the triangle-like vane 13 and the front end side B16 of the next adjacent triangle-like vane 13, thus, two streams of seawater flowing at high speed and instantaneously combined meet with air just and bring the air into the seawater rapidly, the instantaneously combined seawater brings certain impact, after being combined with air, a large amount of bubbles are formed, and the bubbles are dispersed by the impeller 3 rotating at high speed, so that the optimal oxygenation range and oxygenation effect are realized.

The embodiment of the invention provides a submersible aerator which is described in detail above, and the principle and the implementation mode of the invention are explained by applying specific examples, and the description of the embodiment is only used for helping to understand the technical scheme disclosed by the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims

1. The utility model provides a dive oxygen-increasing machine which characterized in that: the motor comprises a motor, a shell and an impeller, wherein the shell of the motor is fixedly connected with the shell, a crankshaft of the motor penetrates through the center of the shell and extends to the outer side of the shell so as to be connected with the impeller, a cavity is formed in the shell, an air inlet hole is formed in the side surface of the shell, and a connecting air hole is formed in the center of the bottom of the shell; the impeller comprises an impeller body and a flange plate arranged at the center of the top surface of the impeller body, a plurality of through channels are arranged in the impeller body, a through hole is arranged at the center of the flange plate, and the through hole is communicated with the through channels; a circular ring bulge is arranged on the bottom surface of the shell in a downward extending mode, the circular ring bulge and the connecting air hole are coaxial, the diameter of the inner wall of the circular ring bulge is larger than the aperture of the connecting air hole, a mechanical oil seal is arranged between the flange plate and the circular ring bulge, the outer wall of the mechanical oil seal is tightly matched with the inner wall of the circular ring bulge and the inner wall of the flange plate respectively, meanwhile, the upper end of the mechanical oil seal is tightly matched with the bottom surface of a groove formed by the circular ring bulge, and the lower end of the mechanical oil seal is tightly matched with the bottom surface of the groove formed by the flange plate; the shaft penetrates through a connecting air hole, a central hole of the mechanical oil seal and a through hole in the center of the flange plate in sequence and finally penetrates through a key groove hole in the bottom of the impeller body and is exposed outside the key groove hole, the shaft, the impeller, the mechanical oil seal and the shell are fixedly connected through the screw connection of a nut and the shaft, the diameter of the shaft is smaller than that of the connecting air hole, that of the central hole of the mechanical oil seal and that of the through hole, and a spacing space is formed between the outer wall of the shaft and the inner wall of the connecting air hole, that of the central hole of the mechanical oil seal and that of the through hole; the air inlet, the cavity of the shell, the spacing space and the plurality of through channels form an air flow channel together; the impeller comprises an impeller body with a hollow cavity and a flange plate arranged at the center of the top surface of the impeller body, a plurality of triangle-like blades are uniformly distributed on the outer peripheral surface of the impeller body, one vertex angle of each triangle-like blade faces the outer side of the impeller body, two sides of the vertex angle are respectively a side edge A and a side edge B, a plurality of involute-shaped guide ribs which are consistent with the number of the triangle-like blades and correspond to the triangle-like blades one by one are uniformly distributed in the hollow cavity of the impeller body by taking the periphery which is at a certain distance away from the inner wall of a through hole of the flange plate as a starting point and face the outer peripheral surface of the impeller body, the top surface and the bottom surface of each involute-shaped guide rib are respectively and integrally attached to the top surface and the bottom surface of the hollow cavity of the impeller body, a public copolymer water cavity is formed between the through hole of the flange plate and the starting points of the involute-shaped guide ribs, and a through channel is formed between two adjacent involute-shaped guide ribs, the public copolymerization water cavity is communicated with each through channel, the through channels are communicated with the through holes in the centers of the flange plates inwards and extend outwards to penetrate through the outer peripheral surface of the impeller body between the two similar triangular blades and the side edges A of the similar triangular blades, chamfers are respectively arranged on the upper edge and the lower edge of the side edge B, a sharp corner is formed between the two chamfers, and a fillet is arranged on the sharp corner; the chamfer angle range of the upper edge and the lower edge of the side edge B is 20-70 degrees; the upper edge of the side B is an included angle boundary line between the side B and the top surface of the triangle-like blade, and the lower edge is an included angle boundary line between the side B and the bottom surface of the triangle-like blade.

2. The submersible aerator as claimed in claim 1, wherein: the side B is connected with the corresponding involute flow guide rib, the track of the side B is a parabola, and the parabola is the extension of the involute flow guide rib.