Air floatation liquid removal structure, air floatation separation device and water treatment device

Abstract

The air floatation liquid removal structure comprises a bubble gathering channel (1) and a U-shaped backflow channel (2), the U-shaped backflow channel (2) is provided with a first end (2-1) and a second end (2-2); the first end (2-1) is higher than the second end (2-2); the first end (2-1) is used for receiving separated liquid; the second end (2-2) is communicated with the bubble gathering channel (1); the second end (2-2) is higher than the lowest point of the U-shaped backflow channel (2); and the second end (2-2) is lower than the upper end of the bubble gathering channel (1). The air flotation separation device, the water treatment device and the foam collection device are provided with the air flotation liquid removal structure. Liquid return is reduced, the foam drying rate and the liquid removal stability are improved, and a new technical thought is provided.

Description

Technical Field

[0001] The present invention belongs to the field of air flotation, and particularly relates to an air flotation liquid removal structure, an air flotation separation device, and a water treatment device. Background Art

[0002] Air flotation is to introduce bubbles into a liquid and use these bubbles to carry impurities in the liquid to the liquid surface.

[0003] The prior art CN202223218555.2, a fresh liquid protein separator for aquaculture, mentions a bubble aggregation member, which includes a bubble aggregation block 461, and bubble aggregation holes 463 and a number of reflux holes 462 are provided on the bubble aggregation block 461; this design separates bubble aggregation and reflux, reducing the situation where the liquid escaped from the upper bubbles is absorbed by the lower bubbles, and can improve the liquid removal efficiency; it is an excellent design. However, when designing, the air flow channels between the bubble aggregation holes 463 and the reflux holes 462 are connected, and the air flow will drive the bubbles to rise from the reflux holes 462, resulting in the upward bubbles in the reflux holes 462 adsorbing the liquid flowing downward in the reflux holes 462, reducing the separation efficiency, and there is room for improvement. Summary of the Invention

[0004] To solve the above problems, the present invention proposes the following technical solutions.

[0005] 1. The air flotation liquid removal structure is excellent in that it includes a bubble aggregation channel (1) and a U-shaped reflux channel (2); The U-shaped reflux channel (2) has a first end (2-1) and a second end (2-2); The first end (2-1) is higher than the second end (2-2); The first end (2-1) receives the escaped liquid; The second end (2-2) communicates with the bubble aggregation channel (1); The second end (2-2) is higher than the lowest point of the U-shaped reflux channel (2); The second end (2-2) is lower than the upper end of the bubble aggregation channel (1).

[0006] Further: The first end (2-1) directly communicates with the bubble aggregation channel (1).

[0007] Further: The first end (2-1) is an open port.

[0008] Further: The first end (2-1) is lower than the upper end of the bubble aggregation channel (1).

[0009] Further: The second end (2-2) directly communicates with the bubble aggregation channel (1).

[0010] Further: The second end (2-2) indirectly communicates with the bubble aggregation channel (1).

[0011] Furthermore: The cavity of the bubble-accumulating channel (1) is cylindrical in shape.

[0012] Furthermore: The bubble-accumulating channel (1) has a straight tube cavity.

[0013] Furthermore: The cross-section of the cavity of the U-shaped reflux channel (2) is circular.

[0014] Furthermore: The U-shaped reflux channel (2) is formed by the cooperation of multiple parts.

[0015] Furthermore: The air flotation liquid removal structure is manufactured by 3D printing.

[0016] 2. An air flotation separation device, having a foam collection device, and the excellent point is that the foam collection device has the aforementioned air flotation liquid removal structure.

[0017] 3. A water treatment device, having a foam collection device, and the excellent point is that the foam collection device has the aforementioned air flotation liquid removal structure.

[0018] Working principle: A1. When starting, the air flotation foam enters from the bottom of the bubble-accumulating channel (1), and then enters the U-shaped reflux channel (2) through the second end (2-2), so that a liquid seal is formed in the U-shaped reflux channel (2); A2. After a liquid seal is formed in the U-shaped reflux channel (2), the foam flows out from the top of the bubble-accumulating channel (1), and large bubbles are generated, and the large bubbles continuously remove liquid; A3. The liquid removed from the foam at the top of the bubble-accumulating channel (1) flows back in sequence from the first end (2-1), the lowest position of the U-shaped reflux channel (2), and the second end (2-2). Beneficial effects

[0019] A liquid seal is formed in the U-shaped reflux channel (2), so as to avoid the bubbles from rising upward in the U-shaped reflux channel (2), playing a role in isolating the channel function. The structural design can realize the functional isolation of the bubble-accumulating channel and the reflux channel, reduce the situation of "re-adsorbing the reflux liquid" by the rising bubbles, reduce the liquid back-carrying, and improve the foam drying rate and the liquid removal stability.

[0020] It provides a new technical idea.

[0021] Creativity: Compared with the prior art CN202223218555.2, in the prior art, the liquid reflux is only realized by arranging the bubble-accumulating holes and the reflux holes on the bubble-accumulating block, and the gas-liquid path is interconnected in structure, and the bubbles may backflow through the reflux holes, reducing the liquid removal efficiency. The present invention forms a closed liquid path structure by introducing a height difference and a U-shaped reflux channel, physically separating the gas and liquid paths, significantly improving the liquid removal stability, and avoiding the interference of bubbles on the reflux process. Description of the drawings

[0022] Figure 1 It is a schematic diagram of Embodiment 1.

[0023] Figure 2 It is a schematic diagram of Embodiment 2.

[0024] Figure 3 It is a schematic diagram of Embodiment 3.

[0025] Figure 4 It is a schematic diagram of Embodiment 4.

[0026] Figure 5 It is a schematic diagram of Embodiment 5.

[0027] Figure 6 It is a schematic diagram of Embodiment 6.

[0028] Figure 7 It is a schematic diagram of Embodiment 7.

[0029] Figure 8 It is a schematic diagram of Embodiment 8.

[0030] Figure 9 It is a schematic diagram of Embodiment 9.

[0031] Explanation of reference numerals: 1, bubble accumulation channel; 2, U-shaped reflux channel; 2-1, first end; 2-2, second end; 3, enclosure space; 4, pipe; 5, bubble accumulation pipe cavity; 6, bubble refiner; 7, air pump. Specific embodiments

[0032] Embodiment 1: As Figure 1 , the air flotation liquid separation structure, the excellent point is that it includes a bubble accumulation channel (1) and a U-shaped reflux channel (2); The U-shaped reflux channel (2) has a first end (2-1) and a second end (2-2); The first end (2-1) is higher than the second end (2-2); The second end (2-2) is higher than the lowest point of the U-shaped reflux channel (2); The second end (2-2) communicates with the bubble accumulation channel (1); The second end (2-2) is higher than the lower end of the bubble accumulation channel (1); The first end (2-1) is lower than the upper end of the bubble accumulation channel (1).

[0033] The first end (2-1) is an open port.

[0034] Embodiment 2: As Figure 2 , the air flotation liquid separation structure, on the basis of Embodiment 1, adds an enclosure space 3.

[0035] Embodiment 3: As Figure 3, the air flotation liquid separation structure. Based on Embodiment 2, the enclosure space 3 is formed by the wall of the pipe 4.

[0036] Embodiment 4: As Figure 4 , the air flotation separation device, having a foam collection device. The excellent point is that the foam collection device has the air flotation liquid separation structure described in Embodiment 3; it also has a bubble stacking cavity (5), and a bubble refiner (6) is provided below the bubble stacking cavity (5). The bubble refiner (6) is connected to an air pump (7) through an air pipe.

[0037] Embodiment 5: As Figure 5 , the air flotation liquid separation structure. Different from Embodiment 3, the second end (2-2) is indirectly communicated with the bubble aggregation channel (1).

[0038] Embodiment 6: As Figure 6 , the air flotation liquid separation structure. Different from Embodiment 5, the upper end of the air flotation liquid separation structure has an inverted conical cavity.

[0039] Embodiment 7: As Figure 7 , the air flotation liquid separation structure. Different from Embodiment 6, the upper end of the inverted conical cavity is higher than the pipe 4.

[0040] Embodiment 8: As Figure 8 , the air flotation liquid separation structure. Different from Embodiment 1, the bubble aggregation channel (1) is a straight pipe, and the first end (2-1) is directly communicated with the bubble aggregation channel (1).

[0041] Embodiment 9: As Figure 9 , the air flotation liquid separation structure. Different from Embodiment 8, the bubble aggregation channel (1) is a bent pipe.

Claims

1. Air flotation liquid separation structure, characterized in that: It includes a polybubble channel (1) and a U-shaped reflux channel (2); The U-shaped reflux channel (2) has a first end (2-1) and a second end (2-2); The first end (2-1) is higher than the second end (2-2); The first end (2-1) receives the escaped liquid; The second end (2-2) communicates with the polybubble channel (1); The second end (2-2) is higher than the lowest point of the U-shaped reflux channel (2); The second end (2-2) is lower than the upper end of the polybubble channel (1).

2. The air flotation liquid removal structure according to claim 1, wherein: The first end (2-1) is lower than the upper end of the polybubble channel (1).

3. The air flotation liquid removal structure according to claim 1, wherein: The second end (2-2) directly communicates with the polybubble channel (1).

4. The air flotation liquid separation structure according to claim 1, wherein: The second end (2-2) indirectly communicates with the polybubble channel (1).

5. The air flotation liquid separation structure according to claim 1, characterized in that: The first end (2-1) is an open port.

6. The air flotation liquid removal structure according to claim 1, wherein: The polybubble channel (1) is a straight pipe cavity.

7. The air flotation liquid removal structure according to claim 1, characterized in that: The cross-section of the cavity of the U-shaped reflux channel (2) is circular.

8. The air flotation liquid separation structure according to claim 1, wherein: The first end (2-1) directly communicates with the polybubble channel (1).

9. Air flotation separation device, having a foam collection device, characterized in that: The foam collection device has the air flotation liquid removal structure described in claim 1.

10. Water treatment device, having a foam collection device, characterized in that: The foam collection device has the air flotation liquid removal structure described in claim 1.

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