Sewage treatment agitator with flow self-adjustment

Abstract

This utility model relates to the technical field of sewage treatment mixers with self-regulating flow rate, specifically to a sewage treatment mixer with self-regulating flow rate, comprising: a sewage tank, a drive motor fixedly connected to the outer wall of the sewage tank, a main pipe fixedly connected to the top outer wall of the sewage tank, a stirring device inside the sewage tank, and a flow regulating device on the outer wall of the main pipe. Through the flow regulating device, a flow control mechanism is established. When fluctuations in the sewage delivery pressure at the front end cause a sudden increase in the flow rate of the main pipe, the sewage pressure will push a sealed piston to slide along the pipe support, connecting the secondary pipe to the main pipe and automatically diverting the flow. This prevents excessive sewage from entering the sewage tank and disrupting the mixing ratio of sewage and treatment agents, while also preventing a sudden rise in the sewage tank level and overflow, ensuring stable and controllable influent flow. Simultaneously, the secondary pipe buffers the instantaneous impact force caused by sudden changes in sewage flow rate, preventing water hammer effects. This dual function ensures stable influent flow.

Description

Technical Field

[0001] This utility model relates to the technical field of sewage treatment mixers with self-adjusting flow rate, and specifically to a sewage treatment mixer with self-adjusting flow rate. Background Technology

[0002] In existing technologies, most wastewater treatment mixers lack an effective flow control mechanism for their inlet systems. When the wastewater delivery pressure fluctuates, the flow rate in the main pipeline can easily increase suddenly, causing excessive wastewater to rush into the wastewater tank, disrupting the mixing ratio of wastewater and chemicals, and potentially leading to a sudden rise in liquid level and overflow. Furthermore, existing equipment is not designed to protect against water hammer effects, and the instantaneous impact force generated by sudden flow changes can easily damage pipes and equipment components, shortening their service life.

[0003] Therefore, in response to the above-mentioned shortcomings, this utility model provides a wastewater treatment mixer with self-regulating flow rate. When the flow rate increases suddenly, the sealed piston is pushed and slid under high pressure, and the secondary pipe automatically diverts and stabilizes the flow, preventing excessive sewage from entering. At the same time, the secondary pipe alleviates the instantaneous impact of sudden flow changes and prevents water hammer effect. This dual function ensures stable water intake and protects the equipment. In conjunction with the guide plate, it can also improve the uniformity of mixing, meeting the urgent need of the wastewater treatment industry for the self-regulating flow rate function of wastewater treatment mixers. Utility Model Content

[0004] To address the shortcomings of existing technologies, the technical solution adopted by this utility model is as follows: a sewage treatment mixer with self-regulating flow rate, comprising: a sewage tank, a drive motor fixedly connected to the outer wall of the sewage tank, a main pipe fixedly connected to the top outer wall of the sewage tank, a stirring device provided inside the sewage tank, and a flow regulating device provided on the outer wall of the main pipe; the flow regulating device includes a secondary pipe, a pipe support fixedly connected to the inner wall of the secondary pipe, a sealing piston slidably connected to the inner wall of the pipe support, and a retaining spring fixedly connected to the outer wall of the sealing piston.

[0005] Preferably, a pressure adjusting rod is fixedly connected to the outer wall of the end of the retaining spring away from the sealing piston. A displacement ring is slidably connected to the outer wall of the pressure adjusting rod. A displacement cylinder is symmetrically fixedly connected to the outer wall of the displacement ring. A receiving cylinder is slidably connected to the outer wall of the displacement cylinder. A bellows is fixedly connected to the outer wall of the sealing piston. The sewage to be treated is first transported to the sewage tank through the main pipe fixedly connected to the outer wall of the top of the sewage tank. During this transport process, the flow regulating device set on the outer wall of the main pipe will monitor the sewage flow rate in the pipe in real time. When the flow rate suddenly increases, the diversion function will be automatically activated. At the same time, the inlet flow rate of the main pipe can be changed by adjusting the components to avoid excessive sewage from rushing into the sewage tank quickly. After the sewage enters the sewage tank stably, the drive motor fixedly connected to the outer wall of the sewage tank will start and drive the stirring device in the tank to operate, so as to fully stir and mix the sewage, laying the foundation for the subsequent sewage treatment process.

[0006] Preferably, the stirring device includes a rotating shaft, and stirring rods are symmetrically fixedly connected to the outer wall of the rotating shaft via connecting rods. Stirring blades are fixedly connected to the outer wall of the stirring rods. A guide plate is provided at the bottom end of the rotating shaft. The flow regulating device serves as the core for regulating the inlet flow rate. The outer wall of the secondary pipe is fixedly connected to the outer wall of the main pipe. Under normal inlet conditions, the sewage pressure in the main pipe is balanced with the preload of the retaining spring. At this time, the pipe support fixed to the inner wall of the secondary pipe and the sealing piston slidably connected to its inner wall are in a stationary state, sealing the secondary pipe. Sewage flows steadily into the sewage tank only along the main pipe.

[0007] When the sewage flow rate in the main pipe suddenly increases and the pressure in the pipe exceeds the preload of the retaining spring, the high-pressure sewage will push the sealing piston to slide away from the main pipe along the inner wall of the pipe support and compress the retaining spring, so that the main pipe and the secondary pipe form a communication channel. Some sewage is diverted through the secondary pipe. When the flow rate in the main pipe returns to the set range and the pressure decreases, the retaining spring releases the preload and pushes the sealing piston to reset, re-closing the secondary pipe and realizing flow self-regulation.

[0008] Preferably, the outer wall of the secondary pipe is fixedly connected to the outer wall of the main pipe. If it is necessary to adjust the range of water inlet flow variation, it can be achieved by rotating the displacement ring. The inner wall of the displacement ring is threadedly connected to the outer wall of the secondary pipe, and the symmetrically fixed displacement cylinder and the receiving cylinder are slidably connected. When the displacement ring is rotated, the threaded transmission will cause it to move axially along the secondary pipe, and at the same time drive the pressure regulating rod linked with it to move synchronously. Rotating the displacement ring clockwise will push the pressure regulating rod to compress the fixing spring, increase the preload, and increase the upper limit of the water inlet flow of the main pipe; rotating it counterclockwise will reduce the preload and lower the upper limit of the flow.

[0009] Preferably, the outer wall of the pressure regulating rod is slidably connected to the inner wall of the secondary pipe, the inner wall of the displacement ring is threadedly connected to the outer wall of the secondary pipe, the inner wall of the receiving cylinder is fixedly connected to the outer wall of the main pipe, and the outer wall of the bellows at the end away from the sealing piston is fixedly connected to the outer wall of the pressure regulating rod. In addition, to prevent sewage leakage, the displacement ring and the receiving cylinder form a first sealing barrier through a very small fitting gap. The bellows fixed to the outer wall of the sealing piston can extend and retract synchronously with the movement of the sealing piston or the pressure regulating rod, sealing the area between the sealing piston and the pressure regulating rod to avoid leakage.

[0010] Preferably, the outer wall of the rotating shaft is fixedly connected to the output end of the drive motor, the guide plate has an inclined angle, and the bottom outer wall of the guide plate is fixedly connected to the bottom inner wall of the sewage tank. The stirring device consists of a rotating shaft, a stirring rod, stirring blades, and a guide plate. Its operation depends on the drive motor to provide power. The output end of the drive motor is fixedly connected to the outer wall of the rotating shaft. After being energized, the torque is transmitted to the rotating shaft, causing it to rotate around its own axis. The stirring rod, which is symmetrically fixed to the outer wall of the rotating shaft via a connecting rod, moves in a circular motion with the rotating shaft. The stirring blades fixed to the outer wall of the stirring rod rotate synchronously, generating a shearing and pushing effect on the sewage, thereby achieving the mixing of sewage and treatment agents. The guide plate at the bottom of the rotating shaft has a certain inclined angle and is fixed to the bottom inner wall of the sewage tank, which can guide the sewage at the bottom of the sewage tank to flow towards the rotating area of ​​the sewage tank discharge pipe, facilitating the sewage to enter the next treatment equipment.

[0011] The beneficial effects of this utility model are as follows:

[0012] 1. This utility model establishes a flow regulation mechanism by setting up a flow adjustment device. When the flow rate of the main pipeline increases suddenly due to fluctuations in the sewage delivery pressure at the front end, the sewage pressure will push the sealing piston to slide along the pipeline support, so that the secondary pipeline is connected to the main pipeline and automatically diverts the flow. This avoids excessive sewage from flooding into the sewage tank and disrupting the mixing ratio of sewage and treatment agents. At the same time, it prevents the sewage tank level from rising suddenly and overflowing, ensuring that the water intake process is stable and controllable.

[0013] 2. This utility model uses a flow regulating device to buffer the instantaneous impact force caused by sudden changes in sewage flow in the secondary pipeline. When the flow in the main pipeline increases or decreases suddenly, it weakens the instantaneous impact of the flow change on the main pipeline, secondary pipeline and sewage tank, reduces the risk of pipeline rupture and equipment component damage, extends the overall service life of the device and reduces maintenance costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the back of this utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the stirring device of this utility model;

[0018] Figure 5 This is a schematic diagram of the flow regulating device of this utility model.

[0019] In the diagram: 1. Sewage tank; 2. Drive motor; 3. Agitator; 4. Main pipe; 5. Flow regulating device; 30. Rotating shaft; 31. Agitator rod; 32. Agitator blade; 33. Guide plate; 50. Secondary pipe; 51. Pipe support; 52. Sealing piston; 53. Retention spring; 54. Pressure regulating rod; 55. Displacement ring; 56. Variable cylinder; 57. Collection cylinder; 58. Corrugated pipe. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

[0021] Example:

[0022] Please see Figure 1 - Figure 5 This utility model provides a technical solution: a sewage treatment mixer with self-adjusting flow rate, comprising: a sewage tank 1, a drive motor fixedly connected to the outer wall of the sewage tank 1, a main pipe 4 fixedly connected to the top outer wall of the sewage tank 1, a stirring device 3 provided inside the sewage tank 1, and a flow regulating device 5 provided on the outer wall of the main pipe 4; the flow regulating device 5 includes a secondary pipe 50, a pipe support 51 fixedly connected to the inner wall of the secondary pipe 50, a sealing piston 52 slidably connected to the inner wall of the pipe support 51, and a retaining spring 53 fixedly connected to the outer wall of the sealing piston 52.

[0023] A pressure adjusting rod 54 is fixedly connected to the outer wall of the end of the retaining spring 53 away from the sealing piston 52. A displacement ring 55 is slidably connected to the outer wall of the pressure adjusting rod 54. A displacement cylinder 56 is symmetrically fixedly connected to the outer wall of the displacement ring 55. A receiving cylinder 57 is slidably connected to the outer wall of the displacement cylinder 56. A bellows 58 is fixedly connected to the outer wall of the sealing piston 52.

[0024] The stirring device 3 includes a rotating shaft 30, and stirring rods 31 are symmetrically fixedly connected to the outer wall of the rotating shaft 30 via connecting rods. Stirring blades 32 are fixedly connected to the outer wall of the stirring rods 31. A guide plate 33 is provided at the bottom end of the rotating shaft 30. The outer wall of the secondary pipe 50 is fixedly connected to the outer wall of the main pipe 4.

[0025] The outer wall of the pressure regulating rod 54 is slidably connected to the inner wall of the secondary pipe 50, the inner wall of the displacement ring 55 is threadedly connected to the outer wall of the secondary pipe 50, the inner wall of the receiving cylinder 57 is fixedly connected to the outer wall of the main pipe 4, and the outer wall of the end of the bellows 58 away from the sealing piston 52 is fixedly connected to the outer wall of the pressure regulating rod 54.

[0026] The outer wall of the rotating shaft 30 is fixedly connected to the output end of the drive motor, the guide plate 33 has an inclined angle, and the bottom outer wall of the guide plate 33 is fixedly connected to the bottom inner wall of the sewage tank 1.

[0027] Working principle:

[0028] The wastewater to be treated is first transported into the wastewater tank 1 through the main pipe 4 fixedly connected to the outer wall of the top of the wastewater tank 1. During this transportation process, the flow regulating device 5 set on the outer wall of the main pipe 4 will monitor the wastewater flow rate in the pipe in real time. When the flow rate suddenly increases, the diversion function will be automatically activated. At the same time, the inflow flow rate of the main pipe 4 can be changed by adjusting the components to avoid excessive wastewater from rushing into the wastewater tank 1. After the wastewater enters the wastewater tank 1 stably, the drive motor fixedly connected to the outer wall of the wastewater tank 1 will start and drive the stirring device 3 inside the tank to operate, so as to fully stir and mix the wastewater, laying the foundation for the subsequent wastewater treatment process.

[0029] As the core of the inlet flow regulation, the flow regulating device 5 has the outer wall of the secondary pipe 50 fixedly connected to the outer wall of the main pipe 4. Under normal inlet conditions, the sewage pressure in the main pipe 4 is balanced with the preload of the fixed spring 53. At this time, the pipe support 51 fixed to the inner wall of the secondary pipe 50 and the sealing piston 52 slidably connected to its inner wall are in a stationary state, which closes the secondary pipe 50, and the sewage flows steadily into the sewage tank 1 along the main pipe 4.

[0030] When the sewage flow rate in the main pipe 4 suddenly increases and the pressure in the pipe exceeds the preload of the retaining spring 53, the high-pressure sewage will push the sealing piston 52 to slide away from the main pipe 4 along the inner wall of the pipe support 51 and compress the retaining spring 53, so that the main pipe 4 and the secondary pipe 50 form a communication channel. Some sewage is diverted through the secondary pipe 50. When the flow rate in the main pipe 4 returns to the set range and the pressure decreases, the retaining spring 53 releases the preload and pushes the sealing piston 52 to reset, re-sealing the secondary pipe 50, thus realizing flow self-regulation.

[0031] If it is necessary to adjust the range of water inlet flow variation, it can be achieved by rotating the displacement ring 55. The inner wall of the displacement ring 55 is threadedly connected to the outer wall of the secondary pipe 50. The symmetrically fixed outer wall of the displacement cylinder 56 is slidably connected to the receiving cylinder 57. When the displacement ring 55 is rotated, the threaded drive will cause it to move axially along the secondary pipe 50, and at the same time drive the pressure regulating rod 54 linked with it to move synchronously. Rotating the displacement ring 55 clockwise will push the pressure regulating rod 54 to compress the fixing spring 53, increase the preload, and increase the upper limit of the water inlet flow of the main pipe 4; rotating it counterclockwise will reduce the preload and lower the upper limit of the flow.

[0032] In addition, to prevent sewage leakage, the variable cylinder 56 and the receiving cylinder 57 form the first sealing barrier through a very small fitting gap. The bellows 58 fixed on the outer wall of the sealing piston 52 can extend and retract synchronously with the movement of the sealing piston 52 or the pressure regulating rod 54, sealing the area between the sealing piston 52 and the pressure regulating rod 54 to prevent leakage.

[0033] The stirring device 3 consists of a rotating shaft 30, a stirring rod 31, a stirring blade 32, and a guide plate 33. Its operation relies on a drive motor for power. The output end of the drive motor is fixedly connected to the outer wall of the rotating shaft 30. After being energized, the torque is transmitted to the rotating shaft 30, causing it to rotate around its own axis. The stirring rod 31, which is symmetrically fixed to the outer wall of the rotating shaft 30 through a connecting rod, moves in a circular motion with the rotating shaft 30. The stirring blade 32, which is fixed to the outer wall of the stirring rod 31, rotates synchronously, generating a shearing and pushing effect on the sewage, thereby achieving the mixing of sewage and treatment agents. The guide plate 33, which is set at the bottom of the rotating shaft 30, has a certain inclination angle and is fixed to the inner wall of the bottom of the sewage tank 1. It can guide the sewage at the bottom of the sewage tank 1 to flow towards the rotating area of ​​the sewage tank discharge pipe, making it easier for the sewage to enter the next treatment equipment.

[0034] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A sewage treatment mixer with flow self-regulation, comprising: A sewage tank (1) is provided with a drive motor fixedly connected to the outer wall of the sewage tank (1) and a main pipe (4) fixedly connected to the top outer wall of the sewage tank (1). The sewage tank (1) is characterized in that a stirring device (3) is provided inside the sewage tank (1) and a flow regulating device (5) is provided on the outer wall of the main pipe (4). The flow regulating device (5) includes a secondary pipe (50), the inner wall of which is fixedly connected to a pipe support (51), the inner wall of which is slidably connected to a sealing piston (52), and the outer wall of which is fixedly connected to a retaining spring (53).

2. The sewage treatment mixer with flow self-adjustment according to claim 1, characterized in that: The outer wall of the end of the retaining spring (53) away from the sealing piston (52) is fixedly connected to an adjusting rod (54). The outer wall of the adjusting rod (54) is slidably connected to a displacement ring (55). The outer wall of the displacement ring (55) is symmetrically fixedly connected to a variable cylinder (56). The outer wall of the variable cylinder (56) is slidably connected to a receiving cylinder (57). The outer wall of the sealing piston (52) is fixedly connected to a bellows (58).

3. The sewage treatment mixer with flow self-adjustment according to claim 1, characterized in that: The stirring device (3) includes a rotating shaft (30), and a stirring rod (31) is symmetrically fixedly connected to the outer wall of the rotating shaft (30) via a connecting rod. A stirring blade (32) is fixedly connected to the outer wall of the stirring rod (31). A guide plate (33) is provided at the bottom end of the rotating shaft (30).

4. The self-flow-regulated sewage treatment mixer according to claim 1, characterized in that: The outer wall of the secondary pipe (50) is fixedly connected to the outer wall of the main pipe (4).

5. The self-flow-regulated sewage treatment mixer according to claim 2, characterized in that: The outer wall of the pressure regulating rod (54) is slidably connected to the inner wall of the secondary pipe (50), the inner wall of the displacement ring (55) is threadedly connected to the outer wall of the secondary pipe (50), the inner wall of the receiving cylinder (57) is fixedly connected to the outer wall of the main pipe (4), and the outer wall of the end of the bellows (58) away from the sealing piston (52) is fixedly connected to the outer wall of the pressure regulating rod (54).

6. The self-flow-regulated sewage treatment mixer according to claim 3, characterized in that: The outer wall of the rotating shaft (30) is fixedly connected to the output end of the drive motor. The guide plate (33) has an inclined angle. The bottom outer wall of the guide plate (33) is fixedly connected to the bottom inner wall of the sewage tank (1).

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