A hybrid aeration device

Abstract

The utility model discloses a kind of mixed aeration devices, including medicament mixing area and aeration area;Water inlet is provided in medicament mixing area bottom, medicament mixing area is communicated with aeration area in upper portion, water outlet is provided in aeration area bottom;Multiple groups of mixed flow units are sequentially arranged in medicament mixing area along water flow direction, the mixed flow unit includes the flow limiting unit and the flow guide unit sequentially arranged along water flow direction, the flow limiting unit has flow limiting inlet and flow limiting outlet, water flow enters flow limiting unit from flow limiting inlet and flows out from flow limiting outlet, the area of flow limiting outlet is less than the area of flow limiting inlet, and flow limiting outlet is located on the vertical center line of medicament mixing area, the flow guide unit and the side wall of medicament mixing area form flow guide outlet, for the water flow that flows out from flow limiting outlet is conducted and makes water flow from flow guide outlet flow out.The utility model can reduce head loss in medicament mixing area while realizing sufficient mixing, thereby reduce the energy consumption required for mixed aeration treatment.

Description

Technical Field

[0001] This utility model belongs to the technical field of water treatment equipment, specifically relating to a mixed aeration device. Background Technology

[0002] Some drinking water sources contain pollutants such as organic matter, microorganisms, ammonia nitrogen, and algae. Mixed aeration can improve water flow, increase dissolved oxygen in the water, promote the collision and aggregation of particulate matter in the water, improve sedimentation, and at the same time, it can oxidize and decompose organic matter in the water, reduce the color and odor of the water, inhibit the growth and reproduction of algae, reduce the pollution and clogging of filter media and membranes by algae during the water treatment process, improve the treatment effect, and improve the treatability and safety of raw water.

[0003] In water treatment processes, the addition of chemicals to raw water and their rapid and thorough mixing have a significant impact on the flocculation reaction effect. Therefore, achieving thorough mixing between chemicals and raw water, as well as aeration oxidation, is an important research direction in water treatment processes. Utility Model Content

[0004] The purpose of this invention is to provide a mixing and aeration device to achieve thorough mixing and aeration oxidation of raw water before flocculation reaction.

[0005] This utility model is achieved through the following technical solution:

[0006] A mixing aeration device includes a reagent mixing zone and an aeration zone;

[0007] An inlet is provided at the bottom of the chemical mixing zone, the chemical mixing zone is connected to the aeration zone at the top, and an outlet is provided at the bottom of the aeration zone.

[0008] Multiple sets of mixing units are arranged sequentially along the water flow direction within the reagent mixing zone. Each mixing unit includes a flow-limiting unit and a flow-guiding unit arranged sequentially along the water flow direction. The flow-limiting unit has a flow-limiting inlet and a flow-limiting outlet. Water flows into the flow-limiting unit from the flow-limiting inlet and flows out from the flow-limiting outlet. The area of ​​the flow-limiting outlet is smaller than the area of ​​the flow-limiting inlet, and the flow-limiting outlet is located on the vertical center line of the reagent mixing zone. A flow-guiding outlet is formed between the flow-guiding unit and the side wall of the reagent mixing zone to guide the water flowing out from the flow-limiting outlet and make the water flow out from the flow-guiding outlet. By continuously changing the water flow direction through the mixing units, the reagent and water are quickly and thoroughly mixed.

[0009] In some embodiments, the flow limiting unit includes two flow limiting plates that are relatively inclined and symmetrically arranged, with a flow limiting inlet formed at one end of the flow limiting plate and a flow limiting outlet formed at the other end of the flow limiting plate.

[0010] In some embodiments, the tilt angle of the flow restrictor is 45°-60°.

[0011] In some embodiments, the flow guiding unit is a V-shaped folded plate structure.

[0012] In some embodiments, the guiding surface of the flow guiding unit is inclined at an angle of 45°-60° to the horizontal plane.

[0013] In some embodiments, aeration zones are provided on both sides of the drug mixing zone.

[0014] In some embodiments, a guide arc plate is provided at the water outlet end located in the reagent mixing zone, so that the water can fall into the water outlet in a parabolic trajectory after passing through the guide arc plate.

[0015] In some embodiments, a multi-stage cascading platform is provided in the aeration zone, the cascading platforms being spaced apart in the vertical direction, so that water flowing from the outlet of the reagent mixing zone or from the previous cascading platform can flow into the next cascading platform in sequence.

[0016] In some embodiments, the outlet end of the drop platform is provided with a guide arc plate, and when the water flows out from the guide arc plate of the lowest first-level drop platform, the water flow can fall into the outlet position in a parabolic manner.

[0017] In some embodiments, the flow area of ​​the outlet is larger than the flow area of ​​the inlet.

[0018] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0019] This invention employs a bottom-inlet water-mixing-zone system with multiple sets of mixing units arranged along the water flow direction. By disturbing the water flow path through the mixing units, the chemicals are fully mixed with the raw water within the mixing zone. Furthermore, by adjusting the opening size of the flow-limiting outlet and the flow-guiding outlet, as well as the tilt angle of the flow-limiting and flow-guiding units, the water flow velocity can be controlled within the design requirements. This achieves thorough mixing while reducing head loss within the mixing zone, thereby lowering the energy consumption required for the mixing and aeration treatment.

[0020] The system combines an aeration zone with a chemical mixing zone. After the raw water is fully mixed with the chemicals in the chemical mixing zone, it falls into the aeration zone, where it is fully mixed with air. This process allows a large number of bubbles to form in the raw water before it enters the flocculation stage, thereby improving the effectiveness of subsequent flocculation treatment. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of one embodiment of the mixing aeration device of this utility model.

[0023] Figure 2 for Figure 1 Top view of the structure of the medium-mix aeration device.

[0024] Figure 3 This is a schematic diagram of another embodiment of the mixing aeration device of this utility model.

[0025] Figure 4 for Figure 3 Top view of the structure of the medium-mix aeration device.

[0026] in:

[0027] 10. Chemical mixing zone; 11. Inlet; 12. Inlet pipe; 13. Dosing pipe; 101. Flow limiting plate; 111. Flow limiting inlet; 112. Flow limiting outlet; 102. Flow guiding unit; 121. Flow guiding outlet.

[0028] 20. Aeration zone; 21. Outlet; 22. Outlet pipe; 23. Waterfall platform; 24. Guide arc plate. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0030] This utility model discloses a mixing aeration device for mixing raw water with chemicals and air in water treatment. (Refer to...) Figure 1 , Figure 2 , Figure 3 and Figure 4 In some embodiments, the mixing aeration device includes a reagent mixing zone 10 and an aeration zone 20;

[0031] An inlet 11 is located at the bottom of the chemical mixing zone. The chemical mixing zone 10 is connected to the aeration zone 20 at the top. An outlet 21 is located at the bottom of the aeration zone. An inlet pipe 12 is installed on the inlet 11. A dosing pipe 13 is connected to the inlet pipe 12. The chemicals are added to the inlet pipe through the dosing pipe and enter the chemical mixing zone along with the raw water.

[0032] Multiple sets of mixing units are arranged sequentially along the water flow direction within the chemical mixing zone. Each mixing unit includes a flow-limiting unit and a flow-guiding unit arranged sequentially along the water flow direction. The flow-limiting unit has a flow-limiting inlet 111 and a flow-limiting outlet 112. Water flows into the flow-limiting unit from the flow-limiting inlet 111 and flows out from the flow-limiting outlet 112. The area of ​​the flow-limiting outlet 112 is smaller than the area of ​​the flow-limiting inlet 111, and the flow-limiting outlet 112 is located on the vertical center line of the chemical mixing zone. A flow-guiding outlet 121 is formed between the flow-guiding unit 102 and the side wall of the chemical mixing zone. This outlet is used to guide the water flowing out from the flow-limiting outlet and make the water flow out from the flow-guiding outlet. By continuously changing the water flow direction through the mixing units, the chemical and water are quickly and thoroughly mixed.

[0033] Reference Figure 1 Within the reagent mixing zone, through the setup of flow-limiting and flow-guiding units, raw water flows in from the flow-limiting inlet and out from the flow-limiting outlet located on the vertical center line of the reagent mixing zone. Since the area of ​​the flow-limiting outlet is smaller than that of the flow-limiting inlet, the flow velocity of the raw water can be changed and turbulence can be formed by the change in the flow area. The water flowing out from the flow-limiting outlet flows from the center to both sides under the action of the flow-guiding unit and flows out from the flow-limiting outlet. This cycle repeats, and the raw water achieves thorough mixing with the reagent under the action of multiple sets of mixing units.

[0034] The reagent mixing area 10 can be a water tank or a box structure.

[0035] In some embodiments, the flow limiting unit includes two relatively inclined and symmetrically arranged flow limiting plates 101, with a flow limiting inlet 111 formed at one end of the flow limiting plate 101 and a flow limiting outlet 112 formed at the other end of the flow limiting plate 101. Taking the reagent mixing area of ​​the box structure as an example, the flow limiting plates 101 can be welded to the inner wall of the box on both sides.

[0036] The tilt angle of the flow restrictor 101 is 45°-60°, and it is generally set to 45°.

[0037] In some embodiments, the flow guiding unit 102 is a V-shaped folded plate structure. Similarly, the flow guiding unit 102 can be welded to the inner wall of the box on both sides.

[0038] The two guiding surfaces of the flow guiding unit 102 are inclined at an angle of 45°-60° to the horizontal plane, and are generally set to 45°.

[0039] The length directions of the flow-limiting outlet and the flow-guiding outlet are generally set to be parallel to each other. The flow-limiting outlet is located in the middle of the reagent mixing zone, and the flow-guiding outlets are located on both sides of the reagent mixing zone. The water flows out from the flow-limiting outlet located in the middle, and then flows out from the flow-guiding outlets located on both sides under the action of the flow-guiding unit.

[0040] An aeration zone 20 is set up on one or both sides of the drug mixing zone 10, as per [reference]. Figure 1 and Figure 3 The raw water, which is fully mixed with the chemicals in the chemical mixing zone, flows out from the outlet of the chemical mixing zone and enters the aeration zone. The raw water flowing out from the outlet enters the aeration zone to form a waterfall, and the raw water and air are fully mixed in the aeration zone.

[0041] To create a cascade within the aeration zone, a guide arc plate 24 is installed at the outlet end of the chemical mixing zone. Guided by the guide arc plate, the water flows in a parabolic trajectory into the outlet and out. When the cascade formed in the aeration zone directly falls into the outlet, it avoids disrupting the air bubbles in the water flow, allowing more air to be incorporated into the raw water. Figure 1 and Figure 3 The inflow end of the guide arc plate 24 is a plane, and the outflow end is a downward curved arc.

[0042] In some embodiments, a multi-stage cascading platform 23 is provided in the aeration zone. The cascading platforms 23 are spaced apart in the vertical direction, allowing water flowing from the outlet of the reagent mixing zone or from the previous cascading platform to flow sequentially into the next cascading platform. By providing a multi-stage cascading platform, a multi-stage cascade is formed in the aeration zone, further increasing the amount of air mixed into the raw water.

[0043] The cascading platform 23 is configured as a water tank structure. A guide arc plate 24 is installed at the water outlet end of the cascading platform. When the water flows out from the guide arc plate of the lowest first-level cascading platform, the water can fall into the location of the water outlet in a parabolic manner.

[0044] Generally, the flow area of ​​the outlet is set to be larger than that of the inlet so that the raw water can be mixed with air in the aeration zone and then flow directly out of the outlet, reducing the loss of air bubbles in the raw water.

[0045] The mixing aeration device can adopt a box structure, with partitions inside the box dividing the interior into a reagent mixing zone and one or two aeration zones. The flow restrictor can be made of rectangular plate, and the flow guiding unit can be made of bent rectangular plate. The flow restrictor and the flow guiding unit can be easily welded to the inner wall of the box, making the mixing aeration device easy to manufacture.

[0046] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", and "outer" used to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0047] Furthermore, the use of terms such as "horizontal" or "vertical" in the description of this utility model does not imply that the component is required to be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0048] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0049] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A mixing aeration device, characterized in that, Includes a drug mixing area and an aeration area; An inlet is provided at the bottom of the chemical mixing zone, the chemical mixing zone is connected to the aeration zone at the top, and an outlet is provided at the bottom of the aeration zone. Multiple sets of mixing units are arranged sequentially along the water flow direction within the reagent mixing zone. Each mixing unit includes a flow-limiting unit and a flow-guiding unit arranged sequentially along the water flow direction. The flow-limiting unit has a flow-limiting inlet and a flow-limiting outlet. Water flows into the flow-limiting unit from the flow-limiting inlet and flows out from the flow-limiting outlet. The area of ​​the flow-limiting outlet is smaller than the area of ​​the flow-limiting inlet, and the flow-limiting outlet is located on the vertical center line of the reagent mixing zone. A flow-guiding outlet is formed between the flow-guiding unit and the side wall of the reagent mixing zone to guide the water flowing out from the flow-limiting outlet and make the water flow out from the flow-guiding outlet. By continuously changing the water flow direction through the mixing units, the reagent and water are quickly and thoroughly mixed.

2. The mixing aeration device according to claim 1, characterized in that, The flow limiting unit includes two flow limiting plates that are relatively inclined and symmetrically arranged, forming a flow limiting inlet at one end of the flow limiting plate and a flow limiting outlet at the other end of the flow limiting plate.

3. The mixing aeration device according to claim 2, characterized in that, The tilt angle of the flow restrictor is 45°-60°.

4. The mixing aeration device according to claim 1, characterized in that, The flow guiding unit is a V-shaped folded plate structure.

5. The mixing aeration device according to claim 1, characterized in that, The guiding surface of the guiding unit is inclined at an angle of 45°-60° to the horizontal plane.

6. The mixing aeration device according to claim 1, characterized in that, Aeration zones are set up on both sides of the drug mixing zone.

7. The mixing aeration device according to claim 1 or 6, characterized in that, A guide arc plate is installed at the water outlet in the reagent mixing zone, allowing the water to fall in a parabolic trajectory into the outlet.

8. The mixing aeration device according to claim 1 or 6, characterized in that, A multi-stage cascading platform is set up in the aeration zone. The cascading platforms are spaced apart in the vertical direction, and the water flowing from the outlet of the reagent mixing zone or from the previous cascading platform can flow into the next cascading platform in sequence.

9. The mixing aeration device according to claim 8, characterized in that, The outlet end of the cascading platform is equipped with a guide arc plate, and when the water flows out from the guide arc plate of the lowest first-level cascading platform, the water flow can fall into the outlet position in a parabolic manner.

10. The mixing aeration device according to claim 1, characterized in that, The flow area of ​​the outlet is larger than that of the inlet.

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