Noiseless aeration system

Abstract

The utility model discloses a kind of noiseless aeration systems, including oxidation pond and oxygen-enriched gas pump assembly, the side of the oxidation pond is equipped with air hole, the air outlet end of the oxygen-enriched gas pump assembly is fixedly connected with ventilation duct, one end of the ventilation duct is fixedly connected with the side of air hole on oxidation pond through first connecting flange.The utility model, by setting rotary disc, poking column and servo motor etc., make the behavior of bubble breaking on water surface from sustained, regular " whoosh " sound, change into a large number of weak, irregular breaking event, its sound energy is mutually offset and dispersed, so that it realizes the remarkable " noiseless " effect on human ear hearing, effectively prolong the residence time of bubble in water simultaneously, increase the opportunity of oxygen dissolution, the relative motion between shear plate and slow-release plate also generates sustained self-cleaning effect, can effectively scrape off the dirt possibly attached to the edge of first through-hole and second through-hole, prevent clogging, ensure long-term stable operation of system.

Description

Technical Field

[0001] This utility model relates to the field of aeration system technology, and in particular to a noiseless aeration system. Background Technology

[0002] Aerators are commonly used pipeline equipment in wastewater treatment. In wastewater treatment, aerobic reactions are typically required to remove organic matter from the wastewater. These aerobic reactions usually take place in an aerobic tank. They utilize aerobic microorganisms in the wastewater, in the presence of free oxygen (molecular oxygen), to digest and degrade the organic matter, stabilizing and rendering it harmless. However, in actual use, the array-type aerators installed above the oxidation tank are mostly a single, integrated structure. This makes installation inconvenient when dealing with aerobic tanks of varying sizes, and also results in poor dissolved oxygen uniformity within the oxidation tank, especially during oxidation. The tank features a three-dimensional spatial distribution. Furthermore, the conventionally installed aeration pipe group has low gas-liquid exchange and dissolved oxygen efficiency. To address this, patent announcement number CN216336840U discloses a "novel high-efficiency aeration system." This system uses a distribution pipe group installed at the bottom of the oxidation tank and several evenly spaced aeration components on top to efficiently and evenly distribute oxygen-rich air into the oxidation tank, thereby improving the sludge treatment efficiency. Oxygen-rich air is continuously delivered to the main air supply pipe through ventilation ducts and evenly distributed into the oxidation tank through distribution pipes, thus meeting the requirements for sludge purification.

[0003] However, in this scheme, when the compressed gas is ejected at high speed from the aeration head during operation, it will violently rub and impact with the surrounding water and generate a large number of bubbles. When these bubbles break off from the aeration head and rise to the water surface, they will release energy and generate significant hydrodynamic noise. This noise accumulates in large sewage treatment plants and will form continuous environmental noise pollution, affecting the plant area and the surrounding environment. Therefore, a noiseless aeration system is proposed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a noiseless aeration system.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a noiseless aeration system, including an oxidation tank and an oxygen-enriched pump assembly, wherein an air vent is provided on one side of the oxidation tank, and a ventilation pipe is fixedly connected to the air outlet end of the oxygen-enriched pump assembly, and one end of the ventilation pipe is fixedly connected to one side of the air vent on the oxidation tank through a first connecting flange, and a slow-release barrier structure is provided inside the oxidation tank.

[0006] The slow-release barrier structure includes a slow-release plate, which is fixedly connected to the inside of the oxidation tank by multiple bolts. The upper surface of the slow-release plate has a rotating groove, and the slow-release plate has multiple first through holes. By setting the slow-release plate with the first through holes, an installation foundation and initial bubble segmentation and slow-release function are provided for the subsequent dynamic shearing components.

[0007] As a further description of the above technical solution:

[0008] The bottom of the slow-release plate is fixedly connected to two slides, and a shearing plate is slidably connected inside the two slides. The shearing plate has multiple second through holes, and the upper surface of the shearing plate has a sliding groove. Through the relative sliding of the shearing plate and the slow-release plate, the through holes of the two are periodically staggered and covered, thereby continuously shearing and breaking up rising bubbles and disrupting their flow state. This is one of the core actions to achieve noise reduction and improve dissolved oxygen efficiency.

[0009] As a further description of the above technical solution:

[0010] A first protective cover is fixedly connected to the upper surface of the slow-release plate. The bottom of the first protective cover is rotatably connected to a rotating shaft through a sealed bearing. A rotating disk is fixedly connected to the bottom of the rotating shaft. The rotating disk is rotatably connected inside the rotating groove. The first protective cover is fixedly installed on the upper surface of the slow-release plate, physically isolating the rotating disk, the actuating column and other moving parts from the sewage and bubble environment in the oxidation tank, forming a sealed cavity, which effectively prevents sludge and impurities in the sewage from entering the interior.

[0011] As a further description of the above technical solution:

[0012] A toggle post is fixedly connected to the bottom of the rotating disk. The toggle post is slidably connected to the sliding groove. The toggle post at the bottom of the rotating disk makes circular motion in the sliding groove of the shearing plate, so that the shearing plate moves horizontally back and forth in a straight line in the slide.

[0013] As a further description of the above technical solution:

[0014] A servo motor is fixedly connected to the upper surface of the first protective cover. The output shaft of the servo motor is fixedly connected to one end of the rotating shaft. When the servo motor is started, it drives the rotating shaft and the rotating disk fixed to its bottom to rotate.

[0015] As a further description of the above technical solution:

[0016] A second protective cover is fixedly connected to the upper surface of the first protective cover. The servo motor is located inside the second protective cover, which completely encloses the servo motor. Together with the first protective cover, they form a more complete waterproof and moisture-proof barrier to prevent sewage from corroding the servo motor.

[0017] As a further description of the above technical solution:

[0018] On the other side of the air vent of the oxidation tank, an air supply pipe is fixedly connected via a second flange. The other end of the air supply pipe is fixedly connected to a distribution pipe assembly. Multiple aeration components are fixedly installed on the upper surface of the distribution pipe assembly. Through the multiple aeration components, oxygen-rich air is released into the water at the bottom of the oxidation tank to form initial bubbles.

[0019] This utility model has the following beneficial effects:

[0020] 1. Compared with existing technologies, this noiseless aeration system, through the setting of a slow-release plate, rotating groove, slide rail, shear plate, sliding groove, rotating shaft, rotating disk, actuating column, and servo motor, drives the rotating shaft and the rotating disk fixed at its bottom to rotate at a constant speed. The actuating column at the bottom of the rotating disk then makes a circular motion in the sliding groove of the shear plate, causing the shear plate to move horizontally and reciprocally in a straight line within the slide rail. The second through hole on the shear plate and the first through hole on the fixed slow-release plate continuously undergo relative displacement, periodically overlapping and separating. When the bubble group rises to the bottom of the shear plate, its rising path is controlled by this set of dynamically overlapping first and second through holes. The rising bubble flow is blocked and cut by the solid part of the shear plate, and large bubbles are broken into smaller bubbles. At the same time, the bubbles... The continuously changing aperture and position of the air bubbles disrupt the stable and concentrated upward flow, making their upward paths random. After dynamic shearing and path randomization, the bubbles vary in size, rise asynchronously, and reach the water surface at dispersed positions. This transforms the continuous, regular "splashing" sound of the bubbles breaking at the water surface into a large number of weak, irregular breaking events. The sound energy cancels out and disperses, thus achieving a significant "noise-free" effect to the human ear. At the same time, it effectively prolongs the residence time of the bubbles in the water, increasing the chance of oxygen dissolution. The relative movement between the shear plate and the slow-release plate also generates a continuous self-cleaning effect, effectively scraping away dirt that may adhere to the edges of the first and second through holes, preventing blockage, and ensuring the long-term stable operation of the system.

[0021] 2. Compared with existing technologies, this noiseless aeration system, by setting up a first protective cover and a second protective cover, physically isolates the rotating disc, actuating column, and other moving parts from the sewage and bubble environment in the oxidation tank, forming a sealed cavity. This effectively prevents sludge and impurities in the sewage from entering the interior, avoiding mechanical failures, increased wear, or inaccurate operation caused by debris blockage, and ensuring the long-term reliable operation of the drive part of the slow-release barrier structure. The second protective cover completely encloses the servo motor, and together with the first protective cover, they form a more complete waterproof and moisture-proof barrier, preventing sewage from corroding the servo motor and ensuring the safe operation and service life of the servo motor. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of a noiseless aeration system proposed in this utility model;

[0023] Figure 2 This is a cross-sectional view of a noiseless aeration system proposed in this utility model;

[0024] Figure 3 This is a schematic diagram of an oxidation tank for a noiseless aeration system proposed in this utility model;

[0025] Figure 4 This is a schematic diagram of the slow-release barrier structure of a noiseless aeration system proposed in this utility model;

[0026] Figure 5 This is an exploded view of the slow-release barrier structure of a noiseless aeration system proposed in this utility model.

[0027] Legend:

[0028] 1. Oxidation tank; 2. Ventilation hole; 3. Oxygen-enriched pump assembly; 4. Ventilation duct; 5. Slow-release barrier structure; 501. Slow-release plate; 502. Rotating trough; 503. Slide rail; 504. Shear plate; 505. Sliding trough; 506. First protective cover; 507. Rotating shaft; 508. Rotating disk; 509. Actuating column; 510. Servo motor; 511. Second protective cover; 6. Air supply pipe; 7. Distribution pipe assembly; 8. Aeration assembly. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Reference Figures 1 to 5This utility model provides a noiseless aeration system, including an oxidation tank 1 and an oxygen-enriched pump assembly 3. A ventilation hole 2 is provided on one side of the oxidation tank 1. A ventilation pipe 4 is fixedly connected to the air outlet end of the oxygen-enriched pump assembly 3. One end of the ventilation pipe 4 is fixedly connected to one side of the ventilation hole 2 on the oxidation tank 1 through a first connecting flange. An air supply pipe 6 is fixedly connected to the other side of the ventilation hole 2 on the oxidation tank 1 through a second flange. A distribution pipe group 7 is fixedly connected to the other end of the air supply pipe 6. Multiple aeration components 8 are fixedly installed on the upper surface of the distribution pipe group 7. The oxygen-enriched pump assembly 3 delivers oxygen-enriched air to the distribution pipe group 7 through the ventilation pipe 4 and the air supply pipe 6. Then, it is released into the water at the bottom of the oxidation tank 1 through multiple aeration components 8 to form initial bubbles. The oxidation tank 1 is provided with a slow-release barrier structure 5.

[0031] To achieve the purpose of protection, a first protective cover 506 is fixedly connected to the upper surface of the slow-release plate 501, and a second protective cover 511 is fixedly connected to the upper surface of the first protective cover 506. The servo motor 510 is set inside the second protective cover 511. The first protective cover 506 is fixedly installed on the upper surface of the slow-release plate 501, which physically isolates the moving parts such as the rotating disk 508 and the actuating column 509 from the sewage and bubble environment in the oxidation tank 1, forming a sealed cavity. This effectively prevents sludge and impurities in the sewage from entering the interior, avoids mechanical failure, increased wear or inaccurate operation caused by dirt blockage, and ensures the long-term reliable operation of the drive part of the slow-release barrier structure 5. The second protective cover 511 completely encloses the servo motor 510. Together with the first protective cover 506, they form a more complete waterproof and moisture-proof barrier to prevent sewage from corroding the servo motor 510 and ensure the safe operation and service life of the servo motor 510.

[0032] To achieve the purpose of slow-release shearing, the slow-release barrier structure 5 includes a slow-release plate 501, which is fixedly connected to the inside of the oxidation tank 1 by multiple bolts. A rotation groove 502 is formed on the upper surface of the slow-release plate 501. Multiple first through holes are formed on the slow-release plate 501. Two slide rails 503 are fixedly connected to the bottom of the slow-release plate 501. A shearing plate 504 is slidably connected inside the two slide rails 503. Multiple second through holes are formed on the shearing plate 504. A sliding groove 505 is formed on the upper surface of the shearing plate 504. A rotating shaft 507 is rotatably connected to the inner bottom of the first protective cover 506 via a sealed bearing. The upper surface of the first protective cover 506... A servo motor 510 is fixedly connected. The output shaft of the servo motor 510 is fixedly connected to one end of a rotating shaft 507. A rotating disk 508 is fixedly connected to the bottom of the rotating shaft 507. The rotating disk 508 is rotatably connected inside a rotating groove 502. A toggle post 509 is fixedly connected to the bottom of the rotating disk 508. The toggle post 509 is slidably connected to a sliding groove 505. The servo motor 510 is electrically connected to a controller. The controller controls the operation of the servo motor 510. When the servo motor 510 starts, it drives the rotating shaft 507 and the rotating disk 508 fixed to its bottom to rotate at a constant speed. The toggle post 509 at the bottom of the rotating disk 508 moves accordingly in the sliding groove of the shearing plate 504. The shear plate 504 moves horizontally and reciprocally within the slide rail 503, causing a circular motion within the slide rail 505. The second through-hole on the shear plate 504 and the first through-hole on the stationary release plate 501 continuously undergo relative displacement, periodically overlapping and separating. When the bubble group rises to the bottom of the shear plate 504, its upward path is controlled by this dynamically alternating set of first and second through-holes. The rising bubble flow is blocked and cut by the solid part of the shear plate 504, breaking large bubbles into smaller ones. Simultaneously, the aperture and position of the bubbles continuously change, disrupting the stable and concentrated upward flow state of the bubbles, making their upward path random. This dynamic shearing... After the shearing and path randomization process, the bubbles vary in size, rise asynchronously, and reach the water surface at dispersed positions. This transforms the bubble bursting behavior at the water surface from a continuous, regular "splashing" sound to a large number of weak, irregular bursting events. The sound energy cancels out and disperses each other, thus achieving a significant "noise-free" effect to the human ear. At the same time, it effectively prolongs the residence time of the bubbles in the water, increasing the chance of oxygen dissolution. The relative movement between the shear plate 504 and the slow-release plate 501 also generates a continuous self-cleaning effect, which can effectively scrape away dirt that may adhere to the edges of the first and second through holes, prevent blockage, and ensure the long-term stable operation of the system.

[0033] Working principle: The servo motor 510 starts, driving the rotating shaft 507 and the rotating disk 508 fixed at its bottom to rotate at a constant speed. The actuating column 509 at the bottom of the rotating disk 508 then makes a circular motion in the sliding groove 505 of the shearing plate 504, causing the shearing plate 504 to move horizontally back and forth in the slide rail 503. The second through hole on the shearing plate 504 and the first through hole on the fixed slow-release plate 501 continuously undergo relative displacement, periodically overlapping and separating. When the bubble group rises to the bottom of the shearing plate 504, its rising path is affected. The dynamic, staggered control of the first and second through-holes causes the rising bubble flow to be blocked and cut by the solid shear plate 504, breaking large bubbles into smaller ones. Simultaneously, the aperture and position of the bubbles continuously change, disrupting the stable, concentrated upward flow and making their upward paths random. After dynamic shearing and path randomization, the bubbles vary in size, rise asynchronously, and reach the water surface at dispersed locations. This transforms the bubble bursting behavior at the water surface from a continuous, regular "splashing" sound to numerous weak, irregular bursts. The sound energy of the event cancels out and disperses, thus achieving a significant "noise-free" effect to the human ear. Simultaneously, it effectively prolongs the residence time of bubbles in water, increasing the chance of oxygen dissolution. The relative movement between the shear plate 504 and the slow-release plate 501 also generates a continuous self-cleaning effect, effectively scraping away dirt that may adhere to the edges of the first and second through holes, preventing blockage and ensuring long-term stable operation of the system. The first protective cover 506 is fixedly installed on the upper surface of the slow-release plate 501, preventing the movement of the rotating disk 508, the actuating column 509, etc. The components are physically isolated from the sewage and bubble environment in the oxidation tank 1, forming a sealed cavity. This effectively prevents sludge and impurities in the sewage from entering the interior, avoiding mechanical failures, increased wear, or inaccurate operation caused by dirt blockage. This ensures the long-term reliable operation of the drive part of the slow-release barrier structure 5. The second protective cover 511 completely encloses the servo motor 510, and together with the first protective cover 506, it forms a more complete waterproof and moisture-proof barrier, preventing sewage from corroding the servo motor 510 and ensuring the safe operation and service life of the servo motor 510.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A noiseless aeration system, comprising an oxidation tank (1) and an oxygen-enriched pump assembly (3), characterized in that: The oxidation tank (1) has a ventilation hole (2) on one side. The outlet end of the oxygen-enriched pump assembly (3) is fixedly connected to a ventilation pipe (4). One end of the ventilation pipe (4) is fixedly connected to one side of the ventilation hole (2) on the oxidation tank (1) through a first connecting flange. The oxidation tank (1) is provided with a slow-release barrier structure (5). The slow-release barrier structure (5) includes a slow-release plate (501), which is fixedly connected to the inside of the oxidation tank (1) by multiple bolts. A rotating groove (502) is provided on the upper surface of the slow-release plate (501), and multiple first through holes are provided on the slow-release plate (501).

2. The noiseless aeration system according to claim 1, characterized in that: The bottom of the slow-release plate (501) is fixedly connected to two slides (503), and a shear plate (504) is slidably connected inside the two slides (503). The shear plate (504) has multiple second through holes, and a sliding groove (505) is formed on the upper surface of the shear plate (504).

3. The noiseless aeration system according to claim 2, characterized in that: The upper surface of the slow-release plate (501) is fixedly connected to a first protective cover (506). The bottom of the first protective cover (506) is rotatably connected to a rotating shaft (507) through a sealed bearing. The bottom of the rotating shaft (507) is fixedly connected to a rotating disk (508), which is rotatably connected inside the rotating groove (502).

4. The noiseless aeration system according to claim 3, characterized in that: The bottom of the rotating disk (508) is fixedly connected to a toggle post (509), and the toggle post (509) is slidably connected to the sliding groove (505).

5. The noiseless aeration system according to claim 3, characterized in that: A servo motor (510) is fixedly connected to the upper surface of the first protective cover (506), and the output shaft of the servo motor (510) is fixedly connected to one end of the rotating shaft (507).

6. The noiseless aeration system according to claim 5, characterized in that: The upper surface of the first protective cover (506) is fixedly connected to the second protective cover (511), and the servo motor (510) is disposed inside the second protective cover (511).

7. The noiseless aeration system according to claim 1, characterized in that: On the other side of the air vent (2) of the oxidation tank (1), an air supply pipe (6) is fixedly connected via a second flange. The other end of the air supply pipe (6) is fixedly connected to a distribution pipe group (7). Multiple aeration components (8) are fixedly installed on the upper surface of the distribution pipe group (7).

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