Submersible aerator

Abstract

The submersible aerator comprises an aeration motor, an air inlet chamber, a mixing disc, a base, a support and an air inlet pipe, the aeration motor is arranged at the top of the air inlet chamber, the mixing disc is arranged at the bottom of the air inlet chamber and communicated with the air inlet chamber, and an impeller connected with the aeration motor is arranged in the mixing disc; the base is arranged at the bottom of the mixing disc; the support comprises a vertical frame and a top frame, the vertical frame is arranged on the top of the base, the top frame is arranged on the top of the vertical frame, the top frame is arranged on the top of the vertical frame, a connecting hole matched with the air inlet pipe is formed in the top frame, screw holes are formed in the periphery of the connecting hole, and the top end of the air inlet pipe penetrates through the connecting hole. Flanges are arranged on the outer sides, close to the top frame part, of the air inlet pipes and are in bolted connection with the screw holes. According to the submersible aerator disclosed by the utility model, the top end and the bottom end of the air inlet pipe are fixed and sealed by the bracket, the air inlet pipe is fixed and supported well, and the connecting stability and the sealing effect are not easily influenced by corrosion at the connecting part.

Description

Technical Field

[0001] The utility model relates to the field of sewage treatment equipment, in particular to a submersible aerator. Background Art

[0002] The submersible aerator is often used for aeration and agitation in the aeration tank and aerated grit chamber of the sewage treatment plant, to oxygenate and mix the mixed liquid of sewage sludge, for biochemical treatment of sewage or for aquaculture oxygenation and landscape water maintenance. The intake pipe of the conventional submersible aerator is connected to the intake chamber by bolts. Some substances in the sewage are likely to corrode the bolts under long-term action, affecting the connection stability. Moreover, the intake pipe itself is very long and lacks stable support. If the connection is unstable, it is likely to affect the sealing effect of the connection. Content of the Utility Model

[0003] In view of the above problems, the utility model provides a submersible aerator, which sets a bracket to fix the top end of the intake pipe, and the bottom end is sealed, with good fixing and supporting effects on the intake pipe, and the connection part is not easily corroded, affecting the connection stability and sealing effect.

[0004] The technical solution of the utility model is as follows:

[0005] A submersible aerator, comprising an aeration motor, an intake chamber, a mixing disk, a base, a bracket and an intake pipe. The aeration motor is arranged on the top of the intake chamber, the mixing disk is arranged at the bottom of the intake chamber, and the two are communicated. An impeller connecting the aeration motor is arranged in the mixing disk; the base is arranged at the bottom of the mixing disk; a connecting pipe is arranged on one side of the top of the intake chamber, and the connecting pipe is hermetically connected to the bottom end of the intake pipe. The bracket comprises a vertical frame and a top frame. The vertical frame is arranged on the top of the base, the top frame is arranged on the top of the vertical frame, a connection hole matching the intake pipe is arranged on the top frame, screw holes are arranged around the connection hole, the top end of the intake pipe passes through the connection hole, and a flange is arranged on the outer side of the intake pipe near the top frame, and the flange is bolted to the screw holes.

[0006] In a further technical solution, an extrusion ring matching the connecting pipe is arranged on the outer side of the bottom end of the intake pipe, a packing seal ring is arranged in the connecting pipe, and the extrusion ring penetrates into the connecting pipe and abuts against the packing seal ring.

[0007] In a further technical solution, an intermediate frame is also arranged in the middle of the vertical frame, and a support hole sleeved on the outer side of the intake pipe is arranged on the intermediate frame.

[0008] In a further technical solution, the base comprises a connecting ring, a support ring and support rods. The radius of the support ring is greater than that of the connecting ring. The connecting ring is connected to the bottom of the mixing disk. The central axis of the support ring coincides with the central axis of the connecting ring and is arranged at the bottom of the connecting ring. The support rods include multiple ones and are annularly arrayed between the support ring and the connecting ring.

[0009] In a further technical solution, a side support leg is further provided on one side of the vertical frame close to the air inlet pipe. The bottom of the side support leg extends to one side of the support ring close to the air inlet pipe, and the bottom of the side support leg is parallel to the bottom of the support ring.

[0010] In a further technical solution, friction teeth are respectively provided at the bottom of the support ring and the bottom of the side support leg.

[0011] In a further technical solution, a silencer is provided at the top end of the air inlet pipe.

[0012] The beneficial effects of the present utility model are as follows:

[0013] 1. On the basis of the existing submersible aerator, a bracket is provided. When connecting the air inlet pipe, the air inlet pipe can pass through the connection hole of the top frame. The bottom end of the air inlet pipe can adopt the existing sealing connection method, and the top end of the air inlet pipe is connected to the top frame through flange bolts. Since the connection at the top end of the air inlet pipe is above the water surface, it is not easily corroded by sewage, and the connection is more stable. On the basis of the stability at the top end, with the support and protection of the bracket, the sealing connection at the bottom end of the air inlet pipe is not easily loosened;

[0014] 2. An intermediate frame is provided in the middle of the vertical frame, which can further support and protect the middle part of the air inlet pipe, making it more stable;

[0015] 3. The base and the additional side support legs can stably support the aerator, and it is not easy to tilt towards the side of the air inlet pipe. The friction teeth can effectively increase the friction with the bottom of the pool, and it is not easy to shift at the bottom of the water;

[0016] 4. The silencer is used to reduce the noise generated by the air inlet pipe during air intake. Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of a submersible aerator according to an embodiment of the present utility model;

[0018] Figure 2 is a schematic diagram of the connection between the air inlet pipe and the top frame according to an embodiment of the present utility model;

[0019] Figure 3 is a schematic diagram of the connection between the air inlet pipe and the connecting pipe according to an embodiment of the present utility model.

[0020] Description of the Reference Numerals:

[0021] 10. Aeration motor; 20. Air inlet chamber; 21. Connecting pipe; 22. Packing seal ring; 30. Mixing disk; 41. Connecting ring; 42. Support ring; 43. Support rod; 44. Side support leg; 51. Vertical frame; 52. Top frame; 53. Intermediate frame; 60. Air inlet pipe; 61. Flange; 62. Extrusion ring; 63. Silencer. Detailed Embodiment

[0022] The embodiments of the present utility model will be further described below in conjunction with the accompanying drawings.

[0023] Embodiment:

[0024] As Figure 1 - Figure 2 shown, a submersible aerator includes an aeration motor 10, an air inlet chamber 20, a mixing disk 30, a base, a bracket and an air inlet pipe 60. The aeration motor 10 is arranged at the top of the air inlet chamber 20, and the mixing disk 30 is arranged at the bottom of the air inlet chamber 20, and the two are communicated. An impeller connecting the aeration motor 10 is arranged in the mixing disk 30; the base is arranged at the bottom of the mixing disk 30; a connecting pipe 21 is arranged on one side of the top of the air inlet chamber 20, and the connecting pipe 21 is hermetically connected to the bottom end of the air inlet pipe 60. The bracket includes a vertical frame 51 and a top frame 52. The vertical frame 51 is arranged on the top of the base, and the top frame 52 is arranged on the top of the vertical frame 51 and is located near the top end of the air inlet pipe 60, so as to be on the water surface after installation. A connecting hole matching the air inlet pipe 60 is arranged on the top frame 52, and screw holes are arranged around the connecting hole. The top end of the air inlet pipe 60 passes through the connecting hole, and a flange 61 is arranged on the outer side of the air inlet pipe 60 near the top frame 52. The connection between the flange 61 and the air inlet pipe 60 can be welding or bonding, and the flange 61 is bolted to the screw holes.

[0025] The working principle of the above technical solution is as follows:

[0026] This submersible aerator works at the bottom of the sewage tank. The impeller is driven to rotate by the existing aeration motor 10. Air is inhaled through the air inlet pipe 60 into the air inlet chamber 20 and enters the mixing disk 30 to mix water and gas to form an air-water mixture, and then it is discharged; when connecting the air inlet pipe 60, the air inlet pipe 60 can pass through the connecting hole of the top frame 52. The bottom end of the air inlet pipe 60 can adopt the existing sealing connection method. The top end of the air inlet pipe 60 is bolted to the top frame 52 through the flange 61. Since the connection at the top end of the air inlet pipe 60 is on the water surface and is not easily corroded by sewage, the connection is more stable. On the basis of the stability at the top end, with the support and protection of the bracket, the sealing connection at the bottom end of the air inlet pipe 60 is not easily loosened.

[0027] In another embodiment, as Figure 3 shown, an extrusion ring 62 matching the connecting pipe 21 is arranged on the outer side of the bottom end of the air inlet pipe 60. The connection between the extrusion ring 62 and the air inlet pipe 60 can be welding or bonding; a packing seal ring 22 is arranged in the connecting pipe 21, and the extrusion ring 62 penetrates into the connecting pipe 21 and abuts against the packing seal ring 22. When the flange 61 at the top end of the air inlet pipe 60 is stably connected to the top frame 52, the bottom end of the air inlet pipe 60 just passes through the connecting pipe 21 and enters the air inlet chamber 20, and the extrusion ring 62 can press the packing seal ring 22 to achieve a sealed connection.

[0028] In another embodiment, as Figure 1As shown in the figure, an intermediate frame 53 is further provided in the middle of the vertical frame 51. A support hole sleeving the outside of the air inlet pipe 60 is provided on the intermediate frame 53. The intermediate frame 53 is arranged in the middle of the vertical frame 51, which can further support and protect the middle part of the air inlet pipe 60 and make it more stable.

[0029] In another embodiment, as Figure 1 shown, the base includes a connecting ring 41, a support ring 42 and support rods 43. The radius of the support ring 42 is greater than that of the connecting ring 41. The connecting ring 41 is connected to the bottom of the mixing disc 30. The central axis of the support ring 42 coincides with the central axis of the connecting ring 41 and is arranged at the bottom of the connecting ring 41. There are multiple support rods 43, which are annularly arrayed between the support ring 42 and the connecting ring 41; a side support leg 44 is further provided on one side of the vertical frame 51 close to the air inlet pipe 60. The bottom of the side support leg 44 extends to one side of the support ring 42 close to the air inlet pipe 60, and the bottom of the side support leg 44 is parallel to the bottom of the support ring 42; a side support leg 44 is further provided on one side of the vertical frame 51 close to the air inlet pipe 60. The bottom of the side support leg 44 extends to one side of the support ring 42 close to the air inlet pipe 60, and the bottom of the side support leg 44 is parallel to the bottom of the support ring 42.

[0030] Since the support ring 42 and the connecting ring 41 are coaxially arranged and the radius of the support ring 42 is greater than that of the connecting ring 41, the base of this structure is not easy to tilt. Also, since the air inlet pipe 60 is arranged on one side of the air inlet chamber 20 and the center of gravity is relatively offset, the side support leg 44 can more stably support the aerator and is not easy to tilt towards the side of the air inlet pipe 60. The friction teeth can effectively increase the friction with the bottom of the pool, making the whole aerator not easy to shift at the bottom of the water.

[0031] In another embodiment, as Figure 1 shown, a silencer 63 is provided at the top end of the air inlet pipe 60. The silencer 63 is used to reduce the noise generated by the air inlet pipe 60 during air intake.

[0032] The above embodiments only represent the specific implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A submersible aerator, characterized in that: It includes an aeration motor, an air intake chamber, a mixing disk, a base, a bracket and an air intake pipe, the aeration motor is arranged at the top of the air intake chamber, the mixing disk is arranged at the bottom of the air intake chamber, the two are connected, the mixing disk is provided with an impeller connected to the aeration motor; the base is arranged at the bottom of the mixing disk; a connecting pipe is provided on one side of the top of the air intake chamber, the connecting pipe is sealed and connected to the bottom end of the air intake pipe, the bracket includes a vertical frame and a top frame, the vertical frame is arranged on the top of the base, the top frame is arranged on the top of the vertical frame, a connecting hole matching the air intake pipe is provided on the top frame, screw holes are provided around the connecting hole, the top end of the air intake pipe is arranged through the connecting hole, and a flange is provided on the outer side of the air intake pipe close to the top frame, and the flange is bolted to the screw hole.

2. A submersible aerator according to claim 1, characterized in that: An extrusion ring matching the connecting pipe is arranged on the outer side of the bottom end of the air inlet pipe, a packing seal ring is arranged inside the connecting pipe, and the extrusion ring penetrates into the connecting pipe and abuts against the packing seal ring.

3. A submersible aerator according to claim 1, characterized in that: An intermediate frame is also provided in the middle of the vertical frame, and a supporting hole which is sleeved on the outer side of the air inlet pipe is provided on the intermediate frame.

4. A submersible aerator according to claim 1, characterized in that: The base includes a connecting ring, a supporting ring and a supporting rod. The radius of the supporting ring is larger than the radius of the connecting ring. The connecting ring is connected to the bottom of the mixing disk. The central axis of the supporting ring coincides with the central axis of the connecting ring. The base is arranged at the bottom of the connecting ring. The supporting rod includes a plurality of supporting rods arranged in a circular array between the supporting ring and the connecting ring.

5. A submersible aerator according to claim 4, characterized in that: A side support foot is also provided on the side of the stand close to the air inlet pipe, the bottom of the side support foot extends to the side of the support ring close to the air inlet pipe, and the bottom of the side support foot is parallel to the bottom of the support ring.

6. A submersible aerator according to claim 5, characterized in that: The bottom of the support ring and the bottom of the side legs are respectively provided with friction teeth.

7. A submersible aerator according to claim 1, characterized in that: A muffler is arranged at the top end of the air intake pipe.

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