Multi-purpose aeration head capable of aeration and chemical addition

Abstract

The present application relates to water and sewage treatment technical field, especially disclose a kind of multi-purpose aerator head of aeration and dosing, including upper cover and base, upper cover is gas permeable structure and is covered with diaphragm for aeration on its outside, upper cover is buckled on the top of base and leave aeration cavity for gas to pass between two, also including air pipe and dosing pipe placed in air pipe, air pipe is communicated with aeration cavity, dosing pipe is dispersed into multiple branch pipes in aeration cavity, passes through upper cover and extends to the outside of upper cover, forms high-level chemical pipe, low-level chemical pipe is provided in aeration cavity and communicated with dosing pipe, upper cover is provided with dosing outlet, and upper cover can be lifted relative to base, when upper cover is lowered, low-level chemical pipe is dosed through dosing outlet, when upper cover is raised, low-level chemical pipe stops dosing, compared with conventional technology, the present technical solution sets such structure to ensure the diffusion rate of reagent to the greatest extent under the premise of avoiding the reaction of both.

Description

Technical Field

[0001] This invention relates to the field of water and wastewater treatment technology, and in particular to a multi-purpose aeration head that can be used for both aeration and chemical dosing. Background Technology

[0002] Some processes in water treatment systems use aeration equipment, such as the aerobic section of a biological tank, ozone contact tank, and ozone / hydrogen peroxide advanced oxidation. During the water treatment process, chemicals need to be added at the same time as aeration to improve the water treatment effect.

[0003] The existing dosing method involves adding chemicals separately using a dosing tube. This method involves adding a variety of chemicals, some of which react with the aeration gases, reducing water treatment efficiency. Therefore, it's necessary to separate the chemical injection point from the aeration point. However, this dosing method doesn't improve the diffusion rate and effect of the chemicals, resulting in relatively independent aeration and chemical dosing, making it difficult for them to mutually promote each other. Furthermore, when using an aeration disc, most of the gas is released from the center of the aeration membrane, with less aeration around the perimeter. This uneven aeration reduces the density of the bubbles and makes them difficult to disperse in the water, causing the aerated gas to accumulate and react more easily with the chemicals.

[0004] Therefore, it is necessary to propose a multi-purpose aeration head that can both aerate and add chemicals, so as to improve the diffusion rate and effect of the chemicals while avoiding the reaction between the aerated gas and the chemicals. Summary of the Invention

[0005] The purpose of this invention is to solve the problems of low drug diffusion rate and poor diffusion effect in existing drug dosing methods, as well as the reaction between aerated gas and drug. A multi-purpose aeration head that can be used for both aeration and drug dosing is provided.

[0006] The technical solution of this invention is:

[0007] A multi-purpose aeration head that can aerate and add medicine includes a top cover and a base. The top cover has a breathable structure and is covered with a membrane for aeration on its outside. The top cover is fastened to the top of the base and an aeration chamber is left between the two for gas to pass through.

[0008] It also includes an air pipe and a dosing pipe placed inside the air pipe. The air pipe is connected to the aeration chamber. The dosing pipe is distributed into multiple branches in the aeration chamber, passing through the top cover and extending to the outside of the top cover to form a high-level dosing pipe.

[0009] The aeration chamber is equipped with a low-level drug tube that is connected to the drug dosing pipe. The upper cover has a drug outlet and can be raised and lowered relative to the base. When the upper cover is lowered to the low position, the low-level drug tube dispenses drugs through the drug outlet. When the upper cover is raised to the high position, the low-level drug tube stops dispensing drugs.

[0010] Furthermore, the low-position medicine tube includes an inner tube and an outer tube sleeved on the inner tube. The inner tube is fixed to the base and communicates with the medicine dosing tube, while the outer tube is fixed to the top cover and communicates with the medicine outlet.

[0011] A squeeze-opening device is installed between the inner and outer pipes. When the top cover is raised to the high position, the squeeze-opening device closes, stopping the dispensing of chemicals. When the top cover is lowered to the low position, the squeeze-opening device opens, allowing the dispensing of chemicals. The squeeze-opening device allows for different chemical release rates when the top cover is at two different heights: high and low. When the chemicals do not react with the aeration gas, the top cover is lowered to the low position, and chemicals are dispensed from both the high-level and low-level pipes simultaneously, resulting in a high chemical release rate and convenient, efficient wastewater treatment. When the chemicals will react with the aeration gas, the top cover is raised to the high position, and chemicals are dispensed from the high-level pipe while dispensing from the low-level pipe stops. This ensures that the chemicals do not come into contact with the aeration gas and maximizes the chemical release rate, guaranteeing wastewater treatment efficiency.

[0012] Furthermore, the squeeze-opening device includes a dosing hose, a dosing rigid tube, and pressure rollers arranged opposite each other on both sides of the dosing rigid tube. The pressure rollers are installed on the inner wall of the outer tube. One end of the dosing rigid tube is connected to the inner tube, and the other end is connected to the dosing hose. When the outer tube moves relative to the inner tube, it drives the pressure rollers to roll along the dosing rigid tube. When the pressure rollers roll onto the dosing hose, they squeeze from both sides of the dosing hose toward the middle to deform it, thereby stopping the dispensing of medicine. This dispensing method can greatly simplify the structural complexity between the inner and outer tubes and improve the stability of the mechanism. By combining the dosing hose and the dosing rigid tube, the dispensing of medicine in the low-position tube is stopped by squeezing the hose to deform it. The upper cover has different drug release rates when it is in the high position and the low position, and the drug release rate can be flexibly controlled, making it highly practical.

[0013] Furthermore, the pressure roller is rotatably connected to the inner wall of the outer tube via a rotating shaft. The rotating shaft is fitted with a spring, which drives the pressure roller to squeeze the opposing pressure roller. The spring allows the opposing pressure rollers to move closer to each other, thereby creating a squeezing force on the dosing hose and the dosing tube between them. When the pressure roller moves to the dosing hose, it can squeeze and deform the dosing hose, thus sealing the agent in the dosing hose.

[0014] Furthermore, the end connecting the rigid dosing tube and the flexible dosing tube is flat. The flat connection ensures a smooth transition between the two, facilitates control and handling of the seal at the connection, and allows the pressure roller to move smoothly without jamming. Moreover, the flat design at the connection is more conducive to the pressure roller squeezing and deforming the flexible dosing tube, ensuring the stability of the drug release from the low-level drug control system.

[0015] Furthermore, a one-way valve is installed at the drug outlet to prevent backflow of the drug.

[0016] Furthermore, one end of the dosing hose is fixed inside the outer tube and connected to the outer tube.

[0017] Furthermore, a sealing ring is provided on the inner side of the outer pipe to seal the gap between the outer and inner pipes, ensuring the isolation of the space inside the pipe from external sewage and preventing the agent from overflowing from the gap.

[0018] Furthermore, the top cover is slidably connected to the base, and the top cover is connected to a telescopic device, which causes the top cover to slide relative to the base.

[0019] Furthermore, the telescopic device is a cylinder.

[0020] This invention relates to a multi-purpose aeration head that can perform both aeration and dosing. A newly designed dosing pipe is incorporated within the air pipe used for aeration, enabling simultaneous aeration and dosing. The agitation generated by the aeration effectively increases the mixing speed of the added medication in the wastewater, combining aeration and dosing functions. The added medication may react with the aeration gas or not. When there is no reaction, the top cover lowers to the low position, allowing both the low and high-level dosing pipes to dispense medication simultaneously, increasing the discharge rate and facilitating faster mixing with the wastewater due to the agitation of the aeration gas, thus improving mixing efficiency. When there is a reaction, the top cover rises to the high position. The high-level dosing pipe, being at a higher position, avoids immediate contact with the aeration gas, preventing reaction and allowing continued medication dispensing. The low-level dosing pipe closes, stopping medication dispensing and preventing reaction. Compared to traditional technologies, this design maximizes the diffusion rate of the medication while preventing reaction. Attached Figure Description

[0021] Figure 1 This is a perspective view of the invention with the top cover in a high position;

[0022] Figure 2 This is the front view of the present invention;

[0023] Figure 3 For the present invention Figure 2 Cross-sectional view at point AA;

[0024] Figure 4 This is a perspective view of the invention when the top cover is in a low position;

[0025] Figure 5 This is a top view of the present invention;

[0026] Figure 6 For the present invention Figure 5 Cross-sectional view at point BB;

[0027] Figure 7 For the present invention Figure 6 A magnified view of a portion of the image is shown in the middle (C).

[0028] Figure 8 This is a diagram showing the state of the pressure roller when the upper cover of the present invention is in a high position.

[0029] Reference numerals: 1. Top cover; 2. Base; 3. Diaphragm; 4. Aeration chamber; 5. Air pipe; 6. Dosing pipe; 7. High-level dosing pipe; 8. Low-level dosing pipe; 9. Dosing outlet; 10. Inner pipe; 11. Outer pipe; 12. Dosing hose; 13. Dosing rigid pipe; 14. Pressure roller; 15. Rotating shaft; 16. Spring; 17. Branch pipe; 18. Telescopic device. Detailed Implementation

[0030] To make the technical means, technical features, inventive purpose and technical effects of this invention easier to understand, the invention will be further described below with reference to specific illustrations.

[0031] Example 1:

[0032] like Figure 1 , Figure 2 and Figure 5 As shown, a multi-purpose aerator head capable of both aeration and medication dispensing includes an upper cover 1 and a base 2. The upper cover 1 has a breathable structure and is covered with a membrane 3 for aeration on its outer side. The upper cover 1 is fastened to the top of the base 2, with an aeration chamber 4 between them for gas passage. It also includes an air pipe 5 and a medication dispensing pipe 6 placed inside the air pipe 5. The air pipe 5 communicates with the aeration chamber 4. The medication dispensing pipe 6 is distributed into multiple branch pipes 17 within the aeration chamber 4, passing through the upper cover 1 and extending to the outside of the upper cover 1, forming a high-level medication pipe 7. A low-level medication pipe 8 communicating with the medication dispensing pipe 6 is provided within the aeration chamber 4. The upper cover 1 has a medication outlet 9 and can be raised and lowered relative to the base 2. When the upper cover 1 is lowered to the low position, the low-level medication pipe 8 dispenses medication through the medication outlet 9; when the upper cover 1 is raised to the high position, the low-level medication pipe 8 stops dispensing medication. This is an optional configuration, such as... Figure 3 As shown, the branch pipe 17 extending from the dosing pipe 6 in the high-level dosing pipe 7 is spiral-shaped, so that the gas coming out of the air pipe 5 can generate a spiral, thereby making the gas contact with the membrane 3 very uniform and the generated bubbles are also very uniformly distributed, improving the aeration effect. As an alternative, the low-level dosing pipe 8 can also have a section of the pipe extending from the dosing pipe 6 designed as a spiral, specifically, the inner pipe 10 or a section of the inner pipe 10 is designed as a spiral, so as to generate a spiral together with the high-level dosing pipe 7.

[0033] Preferred, such as Figure 4As shown, the low-level dosing tube 8 includes an inner tube 10 and an outer tube 11 sleeved on the inner tube 10. The inner tube 10 is welded to the base 2 and connected to the dosing tube 6. The outer tube 11 is welded and fixed to the upper cover 1 and connected to the dosing outlet 9. A squeeze-opening device is provided between the inner tube 10 and the outer tube 11. When the upper cover 1 is raised to the high position, the squeeze-opening device closes to stop the dosing. When the upper cover 1 is lowered to the low position, the squeeze-opening device opens to dispensing the dosing. The squeeze-opening device can provide different dosing rates when the upper cover 1 is at two different heights, high and low. When the dosing does not react with the aeration gas, the upper cover 1 is lowered to the low position, and both the high-level dosing tube 7 and the low-level dosing tube 8 dispense the dosing simultaneously, resulting in a high dosing rate and convenient and efficient wastewater treatment. When the dosing reacts with the aeration gas, the upper cover 1 is raised to the high position, the high-level dosing tube 7 dispenses the dosing, and the low-level dosing tube 8 stops dispensing the dosing. This ensures that the dosing does not react with the aeration gas while maximizing the dosing rate and ensuring wastewater treatment efficiency.

[0034] Preferred, such as Figure 6 and Figure 7 As shown, the squeeze opening and closing device includes a dosing hose 12, a dosing rigid tube 13, and pressure rollers 14 arranged opposite each other on both sides of the dosing rigid tube 13. The pressure rollers 14 are installed on the inner wall of the outer tube 11. One end of the dosing rigid tube 13 is connected to the inner tube 10, and the other end of the dosing rigid tube 13 is connected to the dosing hose 12. When the outer tube 11 moves relative to the inner tube 10, it drives the pressure rollers 14 to roll along the dosing rigid tube 13. When the pressure rollers 14 roll onto the dosing hose 12, they squeeze from both sides of the dosing hose 12 toward the middle to deform it, thereby stopping the dispensing of medicine. This dispensing method can greatly simplify the structural complexity and operational stability between the inner tube 10 and the outer tube 11. By combining the dosing hose 12 and the dosing rigid tube 13, the dispensing of medicine from the low-position medicine tube 8 is stopped by squeezing the hose to deform it. This allows the upper cover 1 to have different drug release rates when it is in a high position and a low position. The drug release rate can be flexibly controlled, and the device is highly practical.

[0035] Preferred, such as Figure 7 and Figure 8 As shown, the pressure roller 14 is rotatably connected to the inner wall of the outer tube 11 via a rotating shaft 15. The rotating shaft 15 is fitted with a spring 16. The spring 16 drives the pressure roller 14 to squeeze the opposing pressure roller 14. The opposing pressure rollers 14 can move closer to each other through the spring 16, thereby forming a squeezing force on the dosing hose 12 and the dosing rigid tube 13 between them. When the pressure roller 14 moves to the dosing hose 12, it can squeeze the dosing hose 12 to deform and seal the agent in the dosing hose 12.

[0036] Preferred, such as Figure 7 and Figure 8As shown, the end where the dosing tube 13 connects to the dosing hose 12 is flat. The flat connection ensures a smooth transition between the two, making it easy to control and handle the sealing of the connection. At the same time, the pressure roller 14 can also move smoothly when passing through this point without getting stuck. Moreover, the flat design of the connection makes it easier for the pressure roller 14 to squeeze the dosing hose 12 and deform it, ensuring the stability of the drug release controlled by the lower dosing tube 8.

[0037] Specifically, the pressure rollers 14 can have various different shapes. For example, the contact surface between the pair of pressure rollers 14 can be arc-shaped, with one pressure roller 14 being a concave arc shape and the other pressure roller 14 being a matching convex arc shape. Of course, with this shape of pressure roller 14, the flat end connecting the dosing tube 13 and the dosing hose 12 also has a matching arc shape. The contact surface between the pair of pressure rollers 14 can also be bent, with one pressure roller 14 being a concave bent shape and the other pressure roller 14 being a matching convex bent shape. Similarly, the flat end connecting the dosing tube 13 and the dosing hose 12 also has a corresponding bent shape.

[0038] Preferably, a one-way valve is provided at the nine drug outlets to prevent drug backflow.

[0039] Preferably, one end of the dosing hose 12 is fixed inside the outer tube 11 and connected to the outer tube 11.

[0040] Preferably, a sealing ring is provided on the inner side of the outer pipe 11 to seal the gap between the outer pipe 11 and the inner pipe 10, ensuring the isolation of the space inside the pipe from the external sewage and preventing the agent from overflowing from the gap.

[0041] Preferred, such as Figure 3 As shown in the figure, the upper cover 1 and the base 2 are slidably connected by a guide rail. The upper cover 1 is connected to a telescopic device 18, which drives the upper cover 1 to slide relative to the base 2.

[0042] Preferably, the telescopic device 18 is a cylinder.

[0043] When using, such as Figure 6 and Figure 7As shown, the aeration head of this invention incorporates a newly designed dosing pipe 6 within the air pipe 5 used for aeration, enabling it to perform dosing simultaneously with aeration. The agitation caused by the aeration effectively increases the mixing speed of the added medication in the wastewater, combining aeration and dosing functions. Furthermore, since the added medication may react with or not react with the aeration gas, to maximize the release efficiency of the medication and ensure maximum diffusion of the medication by the aeration gas, when there is no reaction, the top cover 1 can be lowered to a low position. At this time, the pressure roller 14 is located at the dosing rigid pipe 13, the dosing hose 12 is unobstructed, and the medication can be smoothly released from the low-level dosing pipe 8. The low-level dosing pipe 8 and the high-level dosing pipe 7 can simultaneously dispense medication, increasing the discharge speed of the liquid. Under the agitation of the aeration gas, it can mix more quickly with the wastewater, improving mixing efficiency. When there is a reaction, such as... Figure 1 and Figure 8 As shown, when the upper cover 1 is raised to the high position, the pressure roller 14 in the low-position dosing tube 8 moves from the dosing rigid tube 13 to the dosing flexible tube 12. Under the elastic force of the spring 16, the pressure rollers 14 on both sides of the dosing flexible tube 12 begin to squeeze the dosing flexible tube 12, thereby deforming it and sealing the dosing flexible tube 12. The agent cannot be released from the low-position dosing tube 8, thus avoiding the phenomenon that the agent released from the low-position dosing tube 8 reacts with the aeration gas. Since the high-position dosing tube 7 is in a high position, it will not come into contact with the aeration gas immediately. When the gas rises to the height of the high-level drug pipe 7, its concentration is no longer high enough to react with the drug, thus avoiding the reaction. The drug can continue to be discharged, while the low-level drug pipe 8 is closed and the drug outlet 9 stops discharging the drug to prevent the two from reacting. Although the discharge rate of the drug is reduced to some extent, the diffusion effect of the aeration gas on the released drug is preserved to the maximum extent, which is beneficial to sewage treatment. At the same time, it improves the flexibility of the aeration head in dealing with the above two situations and improves the practicality of the aeration head.

[0044] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of the invention. All equivalent changes and modifications made in accordance with the scope of the claims of this invention should fall within the technical scope of this invention.

Claims

1. A multi-purpose aeration head capable of both aeration and chemical dosing, characterized in that: Includes an upper cover (1) and a base (2). The upper cover (1) is a breathable structure and is covered with a membrane (3) for aeration on its outside. The upper cover (1) is fastened to the top of the base (2) and an aeration chamber (4) is left between the two for gas to pass through. It also includes an air pipe (5) and a dosing pipe (6) placed inside the air pipe (5). The air pipe (5) is connected to the aeration chamber (4). The dosing pipe (6) is distributed into multiple branches (17) in the aeration chamber (4), which pass through the top cover (1) and extend to the outside of the top cover (1) to form a high-level dosing pipe (7). The aeration chamber (4) is equipped with a low-level drug tube (8) that is connected to the drug dosing tube (6). The upper cover (1) has a drug outlet (9) and the upper cover (1) can be raised and lowered relative to the base (2). When the upper cover (1) is lowered to the low position, the low-level drug tube (8) dispenses drugs through the drug outlet (9). When the upper cover (1) is raised to the high position, the low-level drug tube (8) stops dispensing drugs. The low-position medicine tube (8) includes an inner tube (10) and an outer tube (11) sleeved on the inner tube (10). The inner tube (10) is fixed on the base (2) and connected to the medicine dosing tube (6). The outer tube (11) is fixed on the top cover (1) and connected to the medicine outlet (9). A squeezing opening and closing device is provided between the inner tube (10) and the outer tube (11). When the upper cover (1) is raised to the high position, the squeezing opening and closing device closes to stop dispensing medicine. When the upper cover (1) is lowered to the low position, the squeezing opening and closing device opens to dispense medicine. The squeezing opening and closing device includes a dosing hose (12), a dosing rigid tube (13), and pressure rollers (14) arranged opposite to each other on both sides of the dosing rigid tube (13). The pressure rollers (14) are installed on the inner wall of the outer tube (11). One end of the dosing rigid tube (13) is connected to the inner tube (10), and the other end of the dosing rigid tube (13) is connected to the dosing hose (12). When the outer tube (11) moves relative to the inner tube (10), it drives the pressure rollers (14) to roll along the dosing rigid tube (13). When the pressure rollers (14) roll onto the dosing hose (12), they squeeze from both sides of the dosing hose (12) toward the middle to deform it and stop the dispensing of medicine.

2. The multi-purpose aeration head for both aeration and chemical dosing according to claim 1, characterized in that: The pressure roller (14) is rotatably connected to the inner wall of the outer tube (11) via a rotating shaft (15). The rotating shaft (15) is fitted with a spring (16), and the spring (16) drives the pressure roller (14) to squeeze the opposing pressure roller (14).

3. The multi-purpose aeration head for both aeration and chemical dosing according to claim 1, characterized in that: The end where the dosing tube (13) connects to the dosing hose (12) is flat.

4. The multi-purpose aeration head for both aeration and chemical dosing according to claim 1, characterized in that: A one-way valve is provided at the medicine outlet (9).

5. A multi-purpose aeration head for both aeration and chemical dosing according to claim 1, characterized in that: One end of the dosing hose (12) is fixed inside the outer tube (11) and connected to the outer tube (11).

6. A multi-purpose aeration head for both aeration and chemical dosing according to claim 1, characterized in that: The inner side of the outer tube (11) is provided with a sealing ring to seal the gap between the outer tube (11) and the inner tube (10).

7. A multi-purpose aeration head for both aeration and chemical dosing according to claim 1, characterized in that: The top cover (1) is slidably connected to the base (2). The top cover (1) is connected to a telescopic device (18), which drives the top cover (1) to slide relative to the base (2).

8. A multi-purpose aeration head for both aeration and chemical dosing according to claim 7, characterized in that: The telescopic device (18) is a cylinder.

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