Aeration denitrification device for lake and reservoir water body

Abstract

The utility model relates to a nitrogen removal device, in particular to a lake and reservoir water body aeration nitrogen removal device, which comprises an aeration cylinder, an aeration pipe communicated with the bottom of the aeration cylinder, a 7-shaped support plate mounted on one side of the outer wall of the upper part of the aeration cylinder, a motor mounted on the inner wall of the upper part of the 7-shaped support plate, and a reciprocating screw rod connected with an output shaft of the motor, the reciprocating screw rod extends into the aeration cylinder and is rotatably connected with the bottom of the inner side of the aeration cylinder, the reciprocating screw rod is in threaded connection with a piston plate, the circumferential outer wall of the piston plate is tightly attached to the inner wall of the aeration cylinder and can slide and lift along the inner wall of the aeration cylinder, the bottom of the aeration cylinder is rotatably connected with a rotating rod, and the upper end of the rotating rod rotatably extends into the aeration cylinder and is connected with the reciprocating screw rod; stirring plates are evenly arranged at the lower end of the rotating rod in the circumferential direction at intervals. The reciprocating screw rod is driven by the motor to rotate so as to drive the piston plate to do vertical lifting motion, so that gas is efficiently compressed, and the compressed gas is discharged into a water body through the aeration pipe.

Description

Technical Field

[0001] This utility model relates to a nitrogen removal device, and more particularly to a nitrogen removal device for aeration in lakes and reservoirs. Background Technology

[0002] In stagnant water bodies such as lakes and reservoirs, nitrogen pollution is a major factor leading to water quality deterioration and eutrophication. Traditional aeration devices typically use fixed aeration heads or fountain aerators to increase the dissolved oxygen concentration in the water, thereby promoting nitrification and denitrification processes and removing ammonia nitrogen and other nitrogenous substances.

[0003] However, traditional aeration devices deliver oxygen to the water body through aeration heads. Due to the uneven distribution of aeration heads, the gas dispersion is uneven, resulting in insufficient oxygen supply in some areas, which affects the effectiveness of microbial activity and has the drawback of poor nitrogen removal.

[0004] Therefore, it is necessary to design a nitrogen removal device for lake and reservoir water that has uniform aeration and good nitrogen removal effect. Utility Model Content

[0005] Technical solution: A nitrogen removal device for lake and reservoir water aeration includes an aeration cylinder with an aeration pipe connected to the bottom. A 7-shaped support plate is installed on one side of the upper outer wall of the aeration cylinder. A motor is installed on the upper inner wall of the 7-shaped support plate. The output shaft of the motor is connected to a reciprocating screw. The reciprocating screw extends into the aeration cylinder and is rotatably connected to the bottom inner side of the aeration cylinder. A piston plate is threaded onto the reciprocating screw. The outer circumferential wall of the piston plate is in close contact with the inner wall of the aeration cylinder and can slide and rise along the inner wall of the aeration cylinder. A rotating rod is rotatably connected to the bottom of the aeration cylinder. The upper end of the rotating rod rotatably extends into the aeration cylinder and its end is connected to the reciprocating screw. A stirring plate is evenly spaced along the circumference of the lower end of the rotating rod.

[0006] Furthermore, it is particularly preferred that a sealing ring be provided on the circumferential outer wall of the piston plate where it contacts the inner wall of the aeration cylinder.

[0007] Furthermore, it is particularly preferred that the piston plate has an air inlet holes arranged in a ring array, and that the bottom of the piston plate has fixed blocks symmetrically arranged on both sides of the air inlet holes, with a baffle plate for blocking the air inlet holes rotatably connected between the two fixed blocks, and a torsion spring is provided between the baffle plate and the fixed block, with the two ends of the torsion spring connected to the fixed block and the baffle plate respectively.

[0008] Furthermore, it is particularly preferred that a sealing strip be provided at the air intake port of the piston plate.

[0009] Furthermore, it is particularly preferred that an aeration head is connected to the end of the aeration pipe away from the aeration cylinder, and a one-way valve is provided between the aeration head and the aeration pipe.

[0010] Furthermore, it is particularly preferred that the agitator plate has rectangular holes.

[0011] Furthermore, it is particularly preferred that a filter screen be installed at the top opening of the aeration cylinder.

[0012] Furthermore, it is particularly preferred that an H-shaped floating plate is installed in the middle of the aeration cylinder, and an air cushion is provided on the H-shaped floating plate.

[0013] Furthermore, it is particularly preferred that the H-shaped floating board is equipped with a fixing rod for easy cable connection.

[0014] Compared with the prior art, the present invention has the following advantages: 1. The present invention uses a motor to drive a reciprocating screw to rotate, thereby driving the piston plate to move vertically up and down, thereby efficiently compressing the gas and discharging the compressed gas into the water body through the aeration pipe; at the same time, the reciprocating screw drives the rotating rod to rotate synchronously, thereby driving the stirring plate to rotate, thereby helping to disperse the bubbles generated during the aeration process and distribute them evenly throughout the water body, thereby achieving the effect of uniform aeration.

[0015] 2. This utility model can make the device float stably on the water surface by combining the H-shaped floating plate with the air cushion, reducing dependence on the underwater terrain, and also making it easy to adjust the position and direction, and convenient for daily inspection and maintenance. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a partial three-dimensional structural diagram of the present invention.

[0018] Figure 3 This is a three-dimensional structural diagram of the aeration cylinder of this utility model in cross-section.

[0019] Figure 4 This is a three-dimensional structural diagram of the piston plate, baffle, sealing ring, and sealing strip of this utility model. The diagram includes the following reference numerals: 1. Aeration cylinder; 2. L-shaped support plate; 3. Motor; 4. Reciprocating screw; 5. Piston plate; 6. Sealing ring; 7. Baffle; 8. Torsion spring; 9. Fixing block; 10. Sealing strip; 11. Aeration pipe; 12. One-way valve; 13. Rotating rod; 14. Stirring plate; 15. Rectangular hole; 16. Filter screen; 17. H-shaped floating plate; 18. Air cushion; 19. Fixing rod. Detailed Implementation

[0020] Although this invention may be described with respect to a particular application or industry, those skilled in the art will recognize its broader applicability. Those skilled in the art will understand that terms such as "above," "below," "upward," "downward," etc., are used to describe the drawings and not to indicate a limitation on the scope of the invention as defined by the appended claims. Any numerical designations such as "first" or "second" are merely illustrative and not intended to limit the scope of the invention in any way.

[0021] Example: A nitrogen removal device for aeration in lakes and reservoirs, such as... Figures 1-4 As shown, the aeration system includes an aeration cylinder 1, a 7-shaped support plate 2, a motor 3, a reciprocating screw 4, a piston plate 5, an aeration pipe 11, a rotating rod 13, and a stirring plate 14. The bottom of the aeration cylinder 1 is connected to the aeration pipe 11. A 7-shaped support plate 2 is installed on one side of the upper outer wall of the aeration cylinder 1, and a motor 3 is installed on the upper inner wall of the 7-shaped support plate 2. The 7-shaped support plate 2 provides mounting support for the motor 3 and also provides rain protection. The output shaft of the motor 3 is connected to the reciprocating screw 4, which extends into the aeration cylinder 1 and is rotatably connected to the bottom inner side of the aeration cylinder 1. A piston plate 5 is threaded onto the reciprocating screw 4. The motor 3 drives the reciprocating screw 4 to rotate, thereby realizing the reciprocating lifting and lowering movement of the piston plate 5. The circumferential outer wall of the piston plate 5 is in close contact with the inner wall of the aeration cylinder 1 and can slide and rise and fall along the inner wall of the aeration cylinder 1. A sealing ring 6 is provided on the circumferential outer wall of the piston plate 5 that contacts the inner wall of the aeration cylinder 1. The sealing ring ensures... The piston plate 5 is in close contact with the inner wall of the aeration cylinder 1 to prevent gas leakage. A rotating rod 13 is rotatably connected to the bottom of the aeration cylinder 1. The upper end of the rotating rod 13 extends into the aeration cylinder 1 and its end is connected to the reciprocating screw 4. Three agitating plates 14 are evenly spaced along the circumference of the lower end of the rotating rod 13. The rotation of the agitating plates 14 helps to disperse the bubbles generated during aeration, making them more evenly distributed throughout the water body. At the same time, it can also disturb the bottom sediment to a certain extent, preventing pollutants from settling. Rectangular holes 15 are opened on the agitating plates 14. The rectangular holes 15 on the agitating plates 14 help to enhance the turbulence effect of the water flow, increase the contact area between oxygen and water, and further promote oxygen dissolution. At the same time, it also helps to reduce the weight of the entire device and reduce the workload of the motor 3. In addition, it can effectively reduce the resistance when the agitating plates 14 rotate, and improve the energy utilization rate.

[0022] like Figure 4As shown, three air inlets are arranged in a ring array on the piston plate 5. A sealing strip 10 is provided at the air inlet of the piston plate 5. Fixing blocks 9 are symmetrically arranged on both sides of the bottom of the piston plate 5 with the air inlets as the center. A baffle 7 for blocking the air inlets is rotatably connected between the two fixing blocks 9. A torsion spring 8 is provided between the baffle 7 and the fixing blocks 9. The two ends of the torsion spring 8 are respectively connected to the fixing blocks 9 and the baffle 7. Under normal conditions, the baffle 7 fits against the piston plate 5 to block the air inlets on the piston plate 5.

[0023] like Figure 3 As shown, the end of the aeration pipe 11 away from the aeration cylinder 1 is connected to an aeration head. A one-way valve 12 is provided between the aeration head and the aeration pipe 11. The one-way valve 12 is provided to prevent water from flowing back into the aeration cylinder 1, thereby protecting the internal components of the aeration cylinder 1 from damage and ensuring that the piston plate 5 moves up and down to achieve gas compression and safe and reliable aeration operation.

[0024] like Figure 2 As shown, a filter screen 16 is installed at the top opening of the aeration cylinder 1. The filter screen 16 can prevent larger particles from entering the aeration system and extend the service life of the equipment.

[0025] In use, the reciprocating screw 4 is driven to rotate by the motor 3. The reciprocating screw 4 then drives the piston plate 5 to move vertically up and down along the inner wall of the aeration cylinder 1. The sealing ring 6 on the outer wall of the piston plate 5 ensures a tight contact between it and the inner wall of the aeration cylinder 1 to prevent gas leakage. When the piston plate 5 moves downward, it compresses the gas in the aeration cylinder 1 and pushes it to the aeration head through the aeration pipe 11. In this way, the compressed air is released into the water in the form of tiny bubbles, increasing the dissolved oxygen content in the water. When the piston plate 5 moves upward, a negative pressure zone is formed in the inner cavity of the aeration cylinder 1. As the piston plate 5 continues to move upward, the baffle 7 is gradually opened downward under the action of upper and lower pressure. The torsion spring 8 deforms, thereby opening the air inlet on the piston plate 5. The gas above the piston plate 5 enters the aeration cylinder 1 through the air inlet. When the air pressure inside and outside the aeration cylinder 1 is the same, the torsion spring 8 returns to its original position, thereby driving the baffle 7 to return upward and seal the air inlet on the piston plate 5.

[0026] When the reciprocating screw 4 rotates under the drive of the motor 3, the rotating rod 13 also rotates synchronously, thereby driving the agitator 14 to rotate. The rotation of the agitator 14 helps to disperse the bubbles generated during the aeration process, making them more evenly distributed throughout the water body. At the same time, it can also disturb the bottom sediments to a certain extent, preventing pollutants from settling.

[0027] like Figure 1 As shown, an H-shaped floating plate 17 is installed in the middle of the aeration cylinder 1, and an air cushion 18 is provided on the H-shaped floating plate 17; the H-shaped floating plate 17 is provided with a fixing rod 19 for easy cable connection.

[0028] The H-shaped floating plate 17 and the air cushion 18 on it ensure that the entire device can float stably on the water surface, while the fixing rod 19 makes it easy to fix the device in a specific position by means of a cable, ensuring the stability of the device within its working range.

[0029] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A nitrogen removal device for lake / reservoir water aeration, comprising an aeration cylinder (1) with an aeration pipe (11) connected to the bottom of the aeration cylinder (1), characterized in that, A 7-shaped support plate (2) is installed on one side of the upper outer wall of the aeration cylinder (1). A motor (3) is installed on the upper inner wall of the 7-shaped support plate (2). The output shaft of the motor (3) is connected to a reciprocating screw (4). The reciprocating screw (4) extends into the aeration cylinder (1) and is rotatably connected to the bottom of the inner side of the aeration cylinder (1). A piston plate (5) is threaded onto the reciprocating screw (4). The outer circumferential wall of the piston plate (5) is in close contact with the inner wall of the aeration cylinder (1) and can slide up and down along the inner wall of the aeration cylinder (1). A rotating rod (13) is rotatably connected to the bottom of the aeration cylinder (1). The upper end of the rotating rod (13) extends into the aeration cylinder (1) and its end is connected to the reciprocating screw (4). Agitating plates (14) are evenly spaced along the circumference of the lower end of the rotating rod (13).

2. The aeration and nitrogen removal device for lake and reservoir water according to claim 1, characterized in that, A sealing ring (6) is provided on the circumferential outer wall of the piston plate (5) that contacts the inner wall of the aeration cylinder (1).

3. A nitrogen removal device for lake / reservoir water aeration according to claim 2, characterized in that, The piston plate (5) has an air inlet holes arranged in a ring array. The bottom of the piston plate (5) is symmetrically provided with fixing blocks (9) on both sides centered on the air inlet holes. A baffle (7) for blocking the air inlet holes is rotatably connected between the two fixing blocks (9). A torsion spring (8) is provided between the baffle (7) and the fixing block (9). The two ends of the torsion spring (8) are connected to the fixing block (9) and the baffle (7) respectively.

4. A nitrogen removal device for lake / reservoir water aeration according to claim 3, characterized in that, A sealing strip (10) is provided at the air inlet of the piston plate (5).

5. A nitrogen removal device for lake / reservoir water aeration according to claim 4, characterized in that, An aeration head is connected to the end of the aeration pipe (11) away from the aeration cylinder (1), and a one-way valve (12) is provided between the aeration head and the aeration pipe (11).

6. A nitrogen removal device for lake / reservoir water aeration according to claim 5, characterized in that, A rectangular hole (15) is provided on the stirring plate (14).

7. A nitrogen removal device for lake / reservoir water aeration according to claim 6, characterized in that, A filter screen (16) is installed at the top opening of the aeration cylinder (1).

8. A nitrogen removal device for lake / reservoir water aeration according to claim 7, characterized in that, An H-shaped floating plate (17) is installed in the middle of the aeration cylinder (1), and an air cushion (18) is set on the H-shaped floating plate (17).

9. A nitrogen removal device for lake / reservoir water aeration according to claim 8, characterized in that, The H-shaped floating board (17) is equipped with a fixing rod (19) for easy cable connection.

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