Low-resistance collecting pipe and protein separator for air flotation device

Abstract

The low-resistance collecting pipe for the air floatation device is characterized by comprising a lower pipe cavity (1), a necking opening (2) and an upper pipe cavity (3), the upper end of the necking (2) is connected with the upper pipe cavity (3), and the lower end is connected with the lower pipe cavity (1); the inner diameter of the narrowest part of the necking (2) is R0, the height is H, the inner diameter of the joint of the upper pipe cavity (3) and the necking (2) is R3, and the inner diameter of the joint of the lower pipe cavity (1) and the necking (2) is R1, Hlt; r1, Hlt; r1, R2, R3, Hlt; r0, R0lt; r1, R0lt; r3; and the lower end of the necking (2) is a big-end-down horn mouth. The protein separator is provided with the collection tube. The device is simple in structure, low in cost and ingenious and ingenious in design, the efficiency is improved, and a new thought is provided.

Description

TECHNICAL FIELD

[0001] The present application relates to air floatation separation technology, in particular to a low-resistance collection pipe for air floatation device and a protein separator. BACKGROUND

[0002] In the air floatation device, the collection pipe is one of the key components, mainly used for collecting sewage bubbles separated by air floatation. The prior art, patent No. CN202321599552.X (Liu Wei, 2023), provides a collection method for foam or single-layer bubble film, and has good adaptability and high-efficiency water purification effect. This technology has been applied to indoor fish tank ornamental fish breeding and outdoor fish pond breeding, and good economic value has been achieved.

[0003] However, in the prior art collection pipe, the thicker the single-layer bubble film is, the more difficult it is to rise, which limits the concentration of sewage that can be discharged and limits the improvement of sewage discharge efficiency. This problem needs to be solved. SUMMARY

[0004] The present application provides a low-resistance collection pipe for air floatation device and a protein separator, which effectively enhances the upward effect of the single-layer bubble film (6) through innovative design, and improves the air floatation separation efficiency.

[0005] The inventor found that the water content of the single-layer bubble film (6) will adhere to the pipe wall to form a vertical liquid film (5) during the study of air floatation bubble film. The vertical liquid film (5) is in contact with the edge of the single-layer bubble film (6), and the molecular attraction between the two forms a force transmission path, causing the single-layer bubble film (6) to be pulled by the gravity of the vertical liquid film (5), thereby increasing the upward resistance of the single-layer bubble film (6), making it difficult to rise. The higher the height of the vertical liquid film (5), the greater its own gravity, and the downward pulling force increases significantly, which easily leads to the explosion of the single-layer bubble film (6) and makes it difficult to rise smoothly to the top of the collection pipe. Moreover, the higher the viscosity of the liquid, the stronger this effect, further increasing the difficulty of the bubble film rising. Note that this is the first time the inventor has discovered it, and the prior art and literature have not disclosed it. The virtual person of the person skilled in the art, who relies on existing knowledge, does not know this fact. The scientific effect of "the vertical liquid film (5) causing the single-layer bubble film (6) to rise" described in this paragraph exceeds the cognition of the virtual person of the person skilled in the art.

[0006] Technical solution:

[0007] The low-resistance collecting pipe for air floatation device has the advantages that it comprises a lower pipe cavity (1), a necked opening (2) and an upper pipe cavity (3); the necked opening (2) is connected with the upper pipe cavity (3) at the upper end and connected with the lower pipe cavity (1) at the lower end; the inner diameter of the narrowest part of the necked opening (2) is R0, the height is H, the inner diameter of the connecting part of the upper pipe cavity (3) and the necked opening (2) is R3, the inner diameter of the connecting part of the lower pipe cavity (1) and the necked opening (2) is R1, H < R1, H < R3, H < R0, R0 < R1 and R0 < R3.

[0008] Further, the lower end of the necked opening (2) is a lower-large-and-upper-small horn opening, which can guide the airflow and liquid into the necked opening while reducing the turbulence or air resistance caused by the sudden change.

[0009] Further, the upper end of the necked opening (2) is equal to the bottom of the pipe cavity connected above the necked opening (2), and the interface tension increasing area (4) is formed by the angle of the container boundary.

[0010] Further, the upper end of the necked opening (2) is higher than the bottom of the pipe cavity connected above the necked opening (2), and the interface tension increasing area (4) is formed by the angle of the container boundary.

[0011] Further, the material of the low-resistance collecting pipe is PC or PVC plastic.

[0012] Further, the upper pipe cavity (3) is smaller than the lower pipe cavity (1).

[0013] Further, the upper pipe cavity (3) is equal to the lower pipe cavity (1).

[0014] Further, the upper pipe cavity (3) is larger than the lower pipe cavity (1).

[0015] Further, H = 0.

[0016] Further, H is between 0.5 mm and 6 mm.

[0017] Further, the low-resistance collecting pipe is a circular pipe, the lower pipe cavity (1) and the upper pipe cavity (3) are cylindrical pipe cavities, and R1 = R3.

[0018] Further, R1 = R3, R1 is between 8 mm and 12 mm, R0 is between 6 mm and 7 mm, and H = 1 mm.

[0019] Further, the low-resistance collecting pipe is composed of multiple sub-structures.

[0020] Further, the low-resistance collecting pipe is integrally formed.

[0021] The protein separator has a collecting pipe, and the low-resistance collecting pipe for air floatation device is used.

[0022] Principle 0: H < R0, which can make the liquid in the neck appear pie-shaped instead of column-shaped, facilitate the re-expansion of the liquid into a liquid film, facilitate the upward movement, and prevent the neck from causing a substantial increase in air resistance.

[0023] Principle 1: The narrow tube effect increases the upward air flow speed, increases the upward thrust, and cuts off the continuity of the liquid film in the vertical direction; the narrow tube effect at the neck increases the air flow speed, increases the upward friction between the air flow and the vertical liquid film (5), and increases the upward thrust received by the liquid film, which can reduce or cut off the transmission of the downward gravity of the vertical liquid film, reduce the downward pulling force received by the horizontal single-layer bubble film (6), reduce the resistance received by the single-layer bubble film (6), and improve the efficiency of the sewage discharge of the collection tube.

[0024] Principle 2: The air flow of the narrow tube effect can also generate shear force, which can cut off the vertical liquid film (5) or reduce the connection strength of the vertical liquid film (5) above and below the neck, reduce the downward pulling force received by the single-layer bubble film (6), and improve the efficiency of the sewage bubble discharge of the collection tube.

[0025] Principle 3: The interface tension increasing area can make it difficult for the liquid to flow downward, and the corner structure can increase the interface tension between the liquid film and the pipe wall, thereby resisting the downward gravity of the vertical liquid film (5); the liquid flowing downward from the vertical liquid film (5) adhering to the inner wall of the upper tube cavity (3) is stored in the interface tension increasing area, and is pushed upward by the air flow after the subsequent single-layer liquid film (6) or bubble is reabsorbed.

[0026] Principle 4: By using the neck (2) upper end higher than or equal to the bottom of the tube cavity connected above the neck (2), the structure of the container wall can be used to support the liquid upward, to weaken the gravity superposition and transmission of the vertical liquid film, and to reduce the resistance received by the single-layer bubble film (6).

[0027] Beneficial effects

[0028] The gravity superposition of the vertical liquid film is cut off, the resistance of the single-layer bubble film (6) rising is reduced, and the sewage discharge efficiency is improved.

[0029] A new technical idea for improving the efficiency of air floatation sewage discharge is provided.

[0030] The structure is simple and the cost is low.

[0031] The present application breaks through the traditional thinking and does not use the method of reducing the whole pipe diameter to increase the thrust, which will obviously increase the air resistance; instead, the narrow tube effect is ingeniously used to greatly improve the upward efficiency of the single-layer bubble film (6) without increasing the air resistance or increasing the air resistance, only a neck is made, which increases the working efficiency of the air floatation equipment, and the design is ingenious and amazing.

[0032] Just do a necking, cleverly use the narrow tube effect and interfacial tension, to achieve the purpose, a simple structure is reasonable to use two special physical effects, improved prior art, ingenious ideas, unique in the world.

[0033] In summary, the present application simple structure, low cost, design ingenious, improve the efficiency, provide new ideas. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 Is the structural diagram of example 1.

[0035] Figure 2 Is Figure 1 Interface diagram of A-A.

[0036] Figure 3 Is the schematic diagram of example 2.

[0037] Figure 4 Is the schematic diagram of example 3.

[0038] Figure 5 Is the schematic diagram of single layer bubble film (6) rising in the collection tube of prior art.

[0039] Label explanation: 1- lower lumen. 2- necking (2). 3- upper lumen. 4- interfacial tension increasing area. 5- vertical liquid film (5). 6- single layer bubble film (6). DETAILED DESCRIPTION

[0040] Example 1, as shown in Figure 1 and 2 , the low resistance collection tube for air floatation device is a circular tube, and the excellent points are as follows: including lower lumen (1), necking (2) and upper lumen (3); the necking (2) is connected with the upper lumen (3) at the upper end and connected with the lower lumen (1) at the lower end; the lower lumen (1) and the upper lumen (3) are cylindrical lumens, and R1=R3. The inner diameter of the narrowest part of the necking (2) is R0, the height is H, the inner diameter of the connection part of the upper lumen (3) and the necking (2) is R3, the inner diameter of the connection part of the lower lumen (1) and the necking (2) is R1, H

[0041] The upper end of the necking (2) is equal to the bottom of the lumen connected above the necking (2), and the interfacial tension increasing area (4) is formed by the angle of the container boundary.

[0042] The upper lumen (3) is equal to the lower lumen (1).

[0043] Example 2, as shown in Figure 3 , the low resistance collection tube for air floatation device is different from example 1, and the upper end of the necking (2) is higher than the bottom of the lumen connected above the necking (2).

[0044] Embodiment 3, as shown in Figure 4 The low-resistance collection tube for the air floatation device is different from that of Embodiment 2 in that the structure of the interfacial tension increasing zone (4) is different.

[0045] Embodiment 4, the protein separator has the low-resistance collection tube as described in Embodiment 1 or 2 or 3.

[0046] Other: the low-resistance collection tube can have one or more neckings (2).

[0047] Other: the present application is simple but ingenious in design; the good beneficial effect achieved by the simple design is the embodiment of the ingenious design of the present application; the reader should judge the creativity of the present application from multiple angles such as whether the technical problem has been proposed, whether the technical scheme has appeared, and whether the technical effect has been produced, rather than relying on the hindsight thinking to deny the creativity of the present application on the ground that the present application is simple; it should be noted that simplicity does not mean easy to think of; the technical inspiration must be closely related to the content disclosed in the prior art, and the analysis should be made in combination with the ability limitation of the virtual person of the patent law on the technical personnel in the field.

Claims

1. A low-resistance sampling tube for an air flotation device, characterized in that: It includes a lower lumen (1), a constriction (2) and an upper lumen (3); the constriction (2) is connected to the upper lumen (3) at its upper end and to the lower lumen (1) at its lower end; The inner diameter at the narrowest part of the constriction (2) is R0 and the height is H, the inner diameter at the connection between the upper lumen (3) and the constriction (2) is R3, the inner diameter at the connection between the lower lumen (1) and the constriction (2) is R1, H < R1, H < R3, H < R0, R0 < R1, R0 < R3; the lower end of the constriction (2) is a flared mouth with a larger bottom and a smaller top.

2. The low-resistance acquisition tube for the air flotation device as described in claim 1, characterized in that: The height of the upper end of the constriction (2) is equal to the height of the bottom of the lumen connected above the constriction (2).

3. The low-resistance acquisition tube for the air flotation device as described in claim 1, characterized in that: The upper end of the constriction (2) is higher than the bottom of the lumen connected above the constriction (2).

4. The low-resistance acquisition tube for the air flotation device as described in claim 1, characterized in that: The material is PC or PVC or acrylic plastic.

5. The low-resistance acquisition tube for the air flotation device as described in claim 1, characterized in that: H is between 0.5 mm and 6 mm.

6. The low-resistance acquisition tube for the air flotation device as described in claim 1, characterized in that: It is a round tube, the lower lumen (1) and the upper lumen (3) are cylindrical lumens, and R1 = R3.

7. The low-resistance acquisition tube for the air flotation device as described in claim 1, characterized in that: It is produced by one-piece molding.

8. A protein separator, having a collection pipe, characterized in that: The collection pipe is a low-resistance collection pipe for the air flotation device described in any one of claims 1-7.

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