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

Abstract

The invention relates to an air flotation separation technology. The low-resistance collecting pipe for the air floatation device comprises 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; and R3. 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 invention relates to an air flotation separation technology, in particular to a low-resistance collection tube and a protein separator for an air flotation device. Background Art

[0002] In the flotation device, the collection tube is one of the key components, which is mainly used to collect sewage bubbles separated by flotation.

[0003] Prior art, patent number CN202321599552.X (Liu Wei, 2023), provides a collection method of foam or single-layer bubble film, and has good adaptability and efficient water purification effect. This technology has been applied to indoor fish tank ornamental fish farming and outdoor fish pond farming, and has achieved good economic value.

[0004] However, in the prior art collection tube, the thicker the single-layer bubble film is, the harder it is to rise, which limits the concentration of sewage that can be discharged and the improvement of sewage discharge efficiency. This problem needs to be solved. Summary of the invention

[0005] The present invention provides a low-resistance collection tube and a protein separator for an air flotation device, which effectively enhance the upward push effect of a single-layer bubble membrane (6) and improve the air flotation separation efficiency through innovative design.

[0006] The inventor discovered during the process of studying the air-floating bubble film that the water shed from the single-layer bubble film (6) will adhere to the tube wall to form a vertical liquid film (5). The vertical liquid film (5) is in contact with the edge of the single-layer bubble film (6), and the molecules of the two attract each other, forming a force conduction 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 for the single-layer bubble film (6) 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 can easily cause the single-layer bubble film (6) to explode and fail to rise smoothly, making it difficult to reach the top of the collection tube. Moreover, the higher the viscosity of the liquid, the stronger this effect is, further increasing the difficulty of the bubble film rising. Note that this is the first discovery of the inventor, and has not been disclosed in prior art and literature. The technical personnel in this field, a virtual person who relies on existing knowledge, is unaware of this fact. The scientific effect of "the vertical liquid film (5) causing the single-layer bubble film (6) to be blocked from rising" described in this paragraph exceeds the cognition of the technical personnel in this virtual person.

[0007] Technical solution: The low-resistance collection tube for an air flotation device is excellent in that it comprises a lower tube cavity (1), a constricted opening (2) and an upper tube cavity (3); the constricted opening (2) has an upper end connected to the upper tube cavity (3) and a lower end connected to the lower tube cavity (1); The inner diameter at the narrowest part of the necking (2) is R0 and the height is H. The inner diameter at the connection of the upper lumen (3) and the necking (2) is R3, and the inner diameter at the connection of the lower lumen (1) and the necking (2) is R1. H < R1, H < R3, H < R0, R0 < R1, R0 < R3.

[0008] Further: The lower end of the necking (2) is a flared opening that is wider at the bottom and narrower at the top. It can guide the airflow and liquid into the necking while reducing the turbulence or air resistance caused by the sudden change.

[0009] Further: The height of the upper end of the necking (2) is equal to the height of the bottom of the lumen connected above the necking (2).

[0010] Further: The upper end of the necking (2) is higher than the bottom of the lumen connected above the necking (2). The angle of the container boundary is used to form an interfacial tension increasing area (4).

[0011] Further: The material of the collection tube is PC or PVC plastic.

[0012] Further: The upper lumen (3) is smaller than the lower lumen (1).

[0013] Further: The upper lumen (3) is equal to the lower lumen (1).

[0014] Further: The upper lumen (3) is larger than the lower lumen (1).

[0015] Further: H = 0.

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

[0017] Further: The collection tube is a round tube, and the lower lumen (1) and the upper lumen (3) are cylindrical lumens, 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: It is composed of a combination of multiple split structures.

[0020] Further: It is produced by one-piece molding.

[0021] A protein separator having the aforementioned collection tube.

[0022] Principle 0: H < R0 can make the liquid in the necking present a cake shape rather than a column shape, which is beneficial for the liquid to re-expand into a liquid film, beneficial for rising, and prevent a large increase in air resistance caused by the necking.

[0023] Principle 1: The narrow tube effect is used to increase the upward air flow velocity, increase the upward thrust, and cut off the continuity of the liquid film in the vertical direction; the narrow tube effect at the constriction increases the air flow velocity, increases the upward friction between the air flow and the vertical liquid film (5), and causes an increase in the upward thrust received by the liquid film. This upward thrust can reduce or cut off the transmission of the downward gravity of the vertical liquid film, reduce the downward pulling force on the horizontal single-layer bubble film (6), reduce the resistance on the single-layer bubble film (6), and improve the efficiency of the collection pipe in discharging sewage.

[0024] Principle 2: The airflow of the narrow tube effect can also generate shear force, which to a certain extent cuts off the vertical liquid film (5) or reduces the connection strength of the vertical liquid film (5) above and below the constriction, reduces the downward pulling force on the single-layer bubble film (6), and improves the efficiency of the collection tube in discharging sewage bubbles.

[0025] Principle 3: The area of ​​increased interfacial tension can make it difficult for the liquid to flow downward. The corner structure increases the interfacial tension between the liquid film and the tube wall, thereby counteracting the downward gravity of the vertical liquid film (5) below. The liquid flowing downward from the vertical liquid film (5) attached to the inner wall of the upper tube cavity (3) is stored in the area of ​​increased interfacial tension, waiting to be reabsorbed by the subsequent single-layer liquid film (6) or foam and then pushed upward by the airflow.

[0026] Principle 4: By making the upper end of the constriction (2) higher than or equal to the bottom of the tube cavity connected to the upper part of the constriction (2), the structure of the container wall can be used to support the liquid upward, thereby weakening the gravity superposition and transmission of the vertical liquid film and reducing the resistance of the single-layer bubble film (6). Beneficial Effects

[0027] The superposition of vertical liquid films under gravity is cut off, the resistance to the rise of the single-layer bubble film (6) is reduced, and the sewage discharge efficiency is improved.

[0028] It provides a new technical idea for improving the efficiency of flotation sewage discharge.

[0029] Simple structure and low cost.

[0030] The present invention breaks through the traditional thinking and does not adopt the method of reducing the diameter of the entire tube, which will obviously increase the air resistance, to increase the thrust. Instead, it cleverly utilizes the narrow tube effect to greatly improve the upward thrust efficiency of the single-layer bubble film (6) without increasing the air resistance or increasing the air resistance very little. The working efficiency of the air flotation equipment is increased by just making a narrow mouth. The design is so ingenious that it is amazing.

[0031] By just making a necking, the narrow tube effect and interfacial tension were cleverly utilized to achieve the goal. A simple structure rationally utilized two special physical effects, improving the prior technology. The idea is ingenious and unparalleled in the world.

[0032] In summary, the present invention has a simple structure, low cost, ingenious design, improved efficiency and provides new ideas. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a structural diagram of Example 1.

[0034] Figure 2 yes Figure 1 The interface diagram of AA.

[0035] Figure 3 It is a schematic diagram of Example 2.

[0036] Figure 4 It is a schematic diagram of Example 3.

[0037] Figure 5 It is a schematic diagram of a single-layer bubble film (6) rising in a collection tube of the prior art.

[0038] Explanation of reference numerals: 1-lower tube cavity. 2-narrowing (2). 3-upper tube cavity. 4-interfacial tension increase zone. 5-vertical liquid film (5). 6-single-layer bubble film (6). Specific embodiments

[0039] Embodiment 1, as Figure 1 and 2 As shown, the low-resistance collection tube used in the flotation device is a circular tube, and its advantages are: it includes a lower tube cavity (1), a constricted opening (2) and an upper tube cavity (3); the constricted opening (2) is connected to the upper tube cavity (3) at its upper end, and connected to the lower tube cavity (1) at its lower end; the lower tube cavity (1) and the upper tube cavity (3) are cylindrical tube cavities, and R1=R3.

[0040] The inner diameter of the narrowest part of the constriction (2) is R0 and the height is H. The inner diameter of the connection between the upper tube cavity (3) and the constriction (2) is R3. The inner diameter of the connection between the lower tube cavity (1) and the constriction (2) is R1. H <R1,H<R3,H<R0,R0<R1,R0<R3。

[0041] The upper end of the constriction (2) is equal to the bottom of the tube cavity connected to the upper part of the constriction (2), and the interface tension increasing area (4) is formed by utilizing the angle of the container boundary.

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

[0043] Embodiment 2, as Figure 3 As shown, the low-resistance collection tube for the air flotation device is different from that in Example 1 in that the upper end of the constriction (2) is higher than the bottom of the tube cavity connected to the upper end of the constriction (2).

[0044] Embodiment 3, as Figure 4As shown, the low-resistance collection tube used in the air flotation device is different from that in Example 2 in that the structure of the interfacial tension increasing area (4) is different.

[0045] Embodiment 4, protein skimmer, has the collection tube described in embodiment 1 or 2 or 3.

[0046] Others: The collection tube may have one or more constrictions (2).

[0047] Others: Due to the difficult scientific research conditions and limited funds of the inventor, the inventor's explanation of the principle of the technical solution may not be in line with the laws of the universe. Scientific theories and technologies have been improving in various errors. It is common for inventors to get the principles wrong and produce new technical solutions. Moreover, since the patent does not care about the source of the solution, that is to say, even if the inventor's theory is wrong, as long as the technical solution ultimately achieves the effect of reducing the resistance of the single-layer bubble membrane to rise, the patent law will support it.

[0048] Others: Although the present invention is concise, it is cleverly designed; achieving good beneficial effects with a simple design is precisely the embodiment of the exquisite design of the present invention; readers should judge the creativity of the present invention from multiple perspectives, including whether the technical problem has been raised, whether the technical solution has appeared, and whether the technical effect has been produced, rather than relying on hindsight thinking and denying the creativity of the present invention on the grounds that the present invention is simple; it should be noted that simplicity does not mean easy to think of, and technical inspiration must be closely linked to the content disclosed by the prior art and analyzed in combination with the ability limitations of the virtual person of the technical personnel in the relevant field under the patent law.

Claims

1. A low-resistance collection tube for an air flotation device, characterized in that: It comprises a lower tube cavity (1), a constricted opening (2) and an upper tube cavity (3); the constricted opening (2) has an upper end connected to the upper tube cavity (3) and a lower end connected to the lower tube cavity (1); The inner diameter of the narrowest part of the constriction (2) is R0 and the height is H. The inner diameter of the connection between the upper tube cavity (3) and the constriction (2) is R3. The inner diameter of the connection between the lower tube cavity (1) and the constriction (2) is R1. H <R1,H<R3,H<R0,R0<R1,R0<R3。 2. The low-resistance collection tube for the air flotation device according to 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 tube cavity connected to the upper part of the constriction (2).

3. The low-resistance collection tube for the air flotation device according to claim 1, characterized in that: The upper end of the constricted opening (2) is higher than the bottom of the tube cavity connected to the upper part of the constricted opening (2).

4. The low-resistance collection tube for the air flotation device according to claim 1, characterized in that: The material of the collection tube is PC, PVC or acrylic plastic.

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

6. The low-resistance collection tube for the air flotation device according to claim 1, characterized in that: The collection tube is a circular tube, the lower tube cavity (1) and the upper tube cavity (3) are cylindrical tube cavities, and R1=R3.

7. The low-resistance collection tube for the air flotation device according to claim 1, characterized in that: One-piece molding.

8. A protein skimmer with a collection pipe, characterized in that: The collection pipeline is a low-resistance collection pipe for the air flotation device described in any one of claims 1 to 9.

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