Anti-backflow aeration device and air flotation separator

Abstract

The anti-backflow aeration device is characterized by comprising an air cavity (1) and a bubbling device (2), the air cavity (1) is fixedly connected with the bubbling device (2); an air flow (QL) path: the air flow (QL) enters the bubbling device (2) through the air cavity (1); the bubbling device (2) generates bubbles (3). The invention discloses an anti-backflow aeration device which comprises an air cavity (1) and a bubbling device (2), the highest point of the airflow path is taken as a demarcation point (D); the foaming device (2) is arranged on a path from the demarcation point (D) to the foaming device (2) when being installed or used in advance; an air flow (QL) path: the air flow (QL) enters the bubbling device (2) through the air cavity (1); the bubbling device (2) generates bubbles (3). An air pump (B) supplies air to the air flotation separator, and the air flotation separator is provided with the anti-backflow aeration device. And a new technical idea for stopping siphon backflow of the air pump is provided. The device is simple, convenient, easy to manufacture, low in cost and free of extra resistance, and a new thought is provided.

Description

Technical Field

[0001] The present invention relates to liquid aeration equipment, and specifically to an anti-backflow aeration device and an air flotation separator. Background Art

[0002] Diaphragm pumps are commonly used for oxygenation in fish tanks and fish ponds because of their low cost and small size; or for liquid aeration in occasions such as pharmaceutical manufacturing, chemical production, or biological cultivation. Due to the special characteristics of diaphragm pumps, if the pump body is below the liquid level and there is a sudden power outage, the diaphragm expands to create a negative pressure, which easily causes a negative pressure to form in the air pipe, sucking water into the air pipe and forming a siphon, resulting in liquid outflow, damaging the air pump or losing liquid.

[0003] In the prior art, a one-way valve is generally used to prevent backflow, but the one-way valve will generate resistance, resulting in air flow loss. There is room for improvement. Summary of the Invention

[0004] In order to solve the above problems, the present invention provides an anti-backflow aeration device and an air flotation separator.

[0005] 1. An anti-backflow aeration device, the excellent design of which lies in: including an air chamber (1) and a bubble generating device (2); the air chamber (1) and the bubble generating device (2) are fixedly connected; the air flow (QL) path is: the air flow (QL) enters the bubble generating device (2) through the air chamber (1); the bubble generating device (2) generates bubbles (3).

[0006] 2. An anti-backflow aeration device, the excellent design of which lies in: including an air chamber (1) and a bubble generating device (2); taking the highest point of the air flow path as the demarcation point (D); pre-installed or located on the path from the demarcation point (D) to the bubble generating device (2) during use; the air flow (QL) path is: the air flow (QL) enters the bubble generating device (2) through the air chamber (1); the bubble generating device (2) generates bubbles (3).

[0007] Furthermore: the buoyancy of the air chamber (1) in water is less than the gravity of the bubble generating device (2).

[0008] Furthermore: the wall of the air chamber (1) is made of elastic plastic or rigid plastic.

[0009] Furthermore: the wall of the air chamber (1) is made of flexible material.

[0010] Furthermore: the bubble generating device (2) is an air stone, an air disc, an air strip, a porous pipe or a membrane microporous device.

[0011] Furthermore: the volume of the air chamber (1) is larger than the volume of the bubble generating device (2).

[0012] The air flotation separator, supplied with air by an air pump (B), the excellent design of which lies in: having the above-mentioned anti-backflow aeration device.

[0013] Principle: When the air pump is working, the air flow passes through the air chamber without additional resistance.

[0014] When the inside of the trachea is in a negative pressure state, the liquid enters the trachea. When the liquid rises to the air chamber, the gas in the air chamber is squeezed into the trachea, increasing the pressure inside the trachea, thereby stopping the negative pressure state and preventing the occurrence of liquid siphon. Beneficial effects

[0015] It provides a new technical idea for preventing the siphon backflow of the air pump.

[0016] Simple and convenient, easy to manufacture, and low cost.

[0017] Without additional resistance, it will not cause attenuation of the air flow rate. Description of the drawings

[0018] Figure 1 It is a schematic diagram of Embodiment 1.

[0019] Figure 2 It is a schematic diagram of Embodiment 2. Specific embodiments

[0020] Embodiment 1: As Figure 1 shown, an anti-backflow aeration device, the excellent design lies in: including an air chamber (1) and a bubbling device (2); the air chamber (1) and the bubbling device (2) are fixedly connected; the air flow (QL) enters the bubbling device (2) through the air chamber (1), and the bubbling device (2) generates bubbles (3).

[0021] Embodiment 2: As Figure 2 shown, an anti-backflow aeration device, the excellent design lies in: including an air chamber (1) and a bubbling device (2); taking the highest point of the air flow path as the demarcation point (D); pre-installed or during use, located on the path from the demarcation point (D) to the bubbling device (2); the air flow (QL) enters the bubbling device (2) through the air chamber (1), and the bubbling device (2) generates bubbles (3).

[0022] Embodiment 3: Supplied by an air pump (B), the excellent design lies in: having an anti-backflow aeration device as described above.

[0023] Although the present invention is simple, it is ingeniously designed. Achieving good beneficial effects with a simple design is precisely the manifestation of the exquisite design of the present invention. Readers should judge the creativity of the present invention from multiple perspectives, such as whether the technical problem has been proposed, whether the technical solution has emerged, and whether the technical effect has been produced, rather than relying on hindsight thinking to deny 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. The technical inspiration must closely follow the content disclosed in the prior art and be analyzed in combination with the ability limitations of the virtual person, that is, those skilled in the art, as defined by the patent law.

[0024] Although the structure of the present invention is simple, it solves long-existing technical problems. Its creativity should be judged based on the objective absence of technical inspiration rather than relying on subjective assumptions.

Claims

1. An anti-reflux aeration device, characterized in that: It includes an air cavity (1) and a bubble generating device (2); the air cavity (1) and the bubble generating device (2) are fixedly connected; the air flow (QL) path is: the air flow (QL) enters the bubble generating device (2) through the air cavity (1); the bubble generating device (2) generates bubbles (3).

2. An anti-reflux aeration device, characterized in that: It includes an air cavity (1) and a bubble generating device (2); taking the highest point of the air flow path as the demarcation point (D); being pre-installed or located on the path from the demarcation point (D) to the bubble generating device (2) during use; the air flow (QL) path: the air flow (QL) enters the bubble generating device (2) through the air cavity (1); the bubble generating device (2) generates bubbles (3).

3. The anti-backflow aeration device according to claim 1 or 2, characterized in that: The buoyancy of the air cavity (1) in water is less than the gravity of the bubble generating device (2).

4. The anti-reflux aeration device according to claim 1 or 2, characterized in that: The wall of the air cavity (1) is made of elastic plastic or rigid plastic.

5. The anti-backflow aeration device according to claim 1 or 2, characterized in that: The wall of the air cavity (1) is made of flexible material.

6. The anti-reflux aeration device according to claim 1 or 2, characterized in that: The bubble generating device (2) is an air stone, an air disc, an air bar, a porous pipe or a membrane microporous device.

7. The anti-reflux aeration device according to claim 1 or 2, characterized in that: The volume of the air cavity (1) is larger than the volume of the bubble generating device (2).

8. An air flotation separator supplied with gas by an air pump (B), characterized in that: It has an anti-backflow aeration device as described in claim 1 or 2.

Images