Device for generating micro-nano bubbles in water

Abstract

The utility model provides a device for generating micro-nano bubbles in water, which comprises a first flow guide cavity, a gas cavity, a gas-liquid mixing cavity, an inclined hole, a second flow guide cavity and a gas inlet hole, the first flow guide cavity is arranged on the left side, the second flow guide cavity is arranged on the right side, and the inclined hole is arranged in the gas-liquid mixing cavity. A gas-liquid mixing cavity is arranged between the first flow guide cavity and the second flow guide cavity, a gas cavity is arranged on the outer side of the gas-liquid mixing cavity in a sleeving manner, a plurality of inclined holes are uniformly formed between the gas-liquid mixing cavity and the gas cavity, and a gas inlet hole is formed in the outer side wall of the gas cavity. The micro-nano bubble generator is unique in internal structure, micro-nano bubbles can be continuously generated as long as water flow enters the micro-nano bubble generator, additional active power is not needed, operation is easy and convenient, and energy conservation and environmental protection are achieved.

Description

Technical Field

[0001] This patent belongs to the fields of sewage treatment, environmental protection, and aeration technology, and particularly relates to a device for generating micro-nano bubbles in water. Background Art

[0002] In the early 19th century, the research topic of micro-nano bubbles was established, and the technology was applied in the 1990s. In Japan, the research on the operating conditions of micro-nano bubble technology was completed for the first time, and the research should be applied in the field of aquaculture. In the process of in-depth development of the research topic, it was gradually discovered that it has multiple potential applications, which are manifested in its fluid dynamics, biological characteristics and other aspects.

[0003] Aeration is a basic process in sewage treatment technology, which can complete the delivery of dissolved oxygen in the process of pollutant biodegradation. The actual concentration of dissolved oxygen delivered inside the aeration unit will directly affect the treatment effect of organic pollutants. Micro-nano bubble technology is integrated into the aeration process. As a new energy-saving technology, it has high-efficiency operation capability, excellent environmental protection, and helps to improve water quality.

[0004] Existing micro-nano bubble generation methods include: 1. Hydrodynamic cavitation or shear dispersion of the gas phase through the action of liquid flow (including: cyclone type, static mixer, mechanical shear type, micropore generator, ejector type, Venturi generator); 2. Regulation of gas solubility in the liquid phase (including: pressurized gas dissolution method, temperature rise precipitation method); 3. Phase change of the dispersed phase (including: mixed vapor condensation method); 4. Chemical change of the liquid phase (including: electrolysis generation device). Although different micro-nano bubble generation technologies can produce microscopic bubbles, they are different in terms of energy consumption and ability to stably generate large concentration coefficients and uniform size. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies in the prior art and provide a simple, efficient and low-energy-consumption micro-nano bubble generating device.

[0006] The technical solution of the utility model to solve the above technical problems is as follows:

[0007] A device for generating micro-nano bubbles in water comprises a first flow guiding cavity, a gas cavity, a gas-liquid mixing cavity, an oblique hole, a second flow guiding cavity and an air inlet hole, wherein the first flow guiding cavity is arranged on the left side, the second flow guiding cavity is arranged on the right side, a gas-liquid mixing cavity is arranged between the first flow guiding cavity and the second flow guiding cavity, a gas cavity is sleeved on the outside of the gas-liquid mixing cavity, a plurality of oblique holes are evenly arranged between the gas-liquid mixing cavity and the gas cavity, and an air inlet hole is arranged on the outer wall of the gas cavity.

[0008] Furthermore, the first flow guiding cavity is a hollow cavity, the front end of which is cylindrical, the rear end of which is truncated cone-shaped, and the diameter of the front end is larger than the diameter of the rear end.

[0009] Furthermore, the second flow guiding cavity is a hollow cavity, and its structure is in a truncated cone shape, and its front end diameter is larger than its rear end diameter.

[0010] Furthermore, a gap is provided between the end of the first flow guiding cavity and the front end of the second flow guiding cavity.

[0011] Furthermore, the diameter of the end of the first flow guiding cavity is smaller than the diameter of the front end of the second flow guiding cavity.

[0012] Furthermore, the gas cavity and the gas-liquid mixing cavity are both independent and adjacent relatively closed spaces.

[0013] Furthermore, the air inlet hole is connected to an air inlet duct.

[0014] Furthermore, a threaded opening is provided at the front end of the first flow guiding cavity, and the threaded opening is connected to a water pump.

[0015] Furthermore, a threaded opening is provided at the front end of the first flow guiding cavity, the threaded opening is connected to one end of a connecting pipe, the other end of the connecting pipe is connected to a water pump, and the connecting pipe is a hose or a hard pipe.

[0016] Furthermore, the first flow guiding cavity is provided with a first water inlet at the front end and a first water outlet at the rear end, and the second flow guiding cavity is provided with a second water inlet at the front end and a second water outlet at the rear end.

[0017] The utility model has the following beneficial effects:

[0018] 1. The device has a unique structure. As long as there is water intake, it can continuously produce micro-nano bubbles without the need for additional active power. It is simple and convenient to operate, energy-saving and environmentally friendly.

[0019] 2. This device is small and light, and produces micro-nano bubbles with small and uniform diameter. It can be directly connected to a water pump for operation, and the operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of an embodiment of the utility model;

[0023] Among them, 1-first water inlet, 2-first water outlet, 3-second water inlet, 4-second water outlet, 5-first flow guide cavity, 6-second flow guide cavity, 7-gas cavity, 8-gas-liquid mixing cavity, 9-air inlet hole, 10-oblique hole, 11-air inlet duct, 12-water pump, 13-hose. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Reference Figure 1-3 The utility model provides an embodiment: a device for generating micro-nano bubbles in water, comprising a first flow guiding cavity 5, a gas cavity 7, a gas-liquid mixing cavity 8, an oblique hole 10, a second flow guiding cavity 6 and an air inlet hole 9, wherein the first flow guiding cavity 5 is arranged on the left side, and the second flow guiding cavity 6 is arranged on the right side, a gas-liquid mixing cavity 8 is arranged between the first flow guiding cavity 5 and the second flow guiding cavity 6, a gas-liquid mixing cavity 8 is sleeved on the outside of the gas-liquid mixing cavity 8, a plurality of oblique holes 10 are evenly arranged between the gas-liquid mixing cavity 8 and the gas cavity 7, and an air inlet hole 9 is arranged on the outer wall of the gas cavity 7.

[0026] Specifically, the first flow guiding cavity 5 is a hollow cavity, the front end of which is cylindrical, the rear end of which is truncated cone-shaped, and the diameter of the front end is larger than the diameter of the rear end.

[0027] Specifically, the second flow guiding cavity 6 is a hollow cavity, and its structure is in a truncated cone shape, and its front end diameter is larger than its rear end diameter.

[0028] Specifically, a gap is provided between the end of the first flow guiding cavity 5 and the front end of the second flow guiding cavity 6 .

[0029] Specifically, the diameter of the end of the first flow guiding cavity 5 is smaller than the diameter of the front end of the second flow guiding cavity 6 .

[0030] Specifically, the gas cavity 7 and the gas-liquid mixing cavity 8 are both independent and adjacent relatively closed spaces.

[0031] Specifically, the air inlet hole 9 is connected to the air inlet duct 11 .

[0032] Specifically, a threaded opening is provided at the front end of the first flow guiding cavity 5 , and the threaded opening is connected to the water pump 12 .

[0033] Specifically, a threaded opening is provided at the front end of the first flow guiding cavity 5 , and the threaded opening is connected to one end of a connecting pipe 13 , and the other end of the connecting pipe 13 is connected to the water pump 12 . The connecting pipe 13 is a hose or a hard pipe.

[0034] Specifically, the first flow guiding cavity 5 is provided with a first water inlet 1 at the front end and a first water outlet 2 at the rear end, and the second flow guiding cavity 6 is provided with a second water inlet 3 at the front end and a second water outlet 4 at the rear end.

[0035] The front end of the first flow guiding cavity 5 is connected to the water pump 12, and the water pump 12 can provide the intake water flow as power.

[0036] Workflow:

[0037] The novel device combines the effects of Venturi, hydraulic cavitation and hydraulic shear. When the water flows from the first guide cavity through the gas-liquid mixing cavity, the air in the gas cavity enters the gas-liquid mixing cavity through the oblique hole. When the air passes through the oblique hole, a series of hydraulic cavitation and hydraulic shear effects occur, and relatively uniform micro-nano bubbles are generated, which are then scattered into the water through the second guide cavity.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for generating micro-nano bubbles in water, characterized in that: The invention comprises a first flow guiding cavity (5), a gas cavity (7), a gas-liquid mixing cavity (8), an oblique hole (10), a second flow guiding cavity (6) and an air inlet hole (9), wherein the first flow guiding cavity (5) is arranged on the left side, and the second flow guiding cavity (6) is arranged on the right side, a gas-liquid mixing cavity (8) is arranged between the first flow guiding cavity (5) and the second flow guiding cavity (6), the gas-liquid mixing cavity (8) is sleeved with the gas cavity (7) on the outside, a plurality of oblique holes (10) are evenly arranged between the gas-liquid mixing cavity (8) and the gas cavity (7), and an air inlet hole (9) is arranged on the outer wall of the gas cavity (7).

2. The device for generating micro-nano bubbles in water according to claim 1, characterized in that: The first flow guiding cavity (5) is a hollow cavity, the front end of which is cylindrical and the rear end of which is truncated cone-shaped, and the diameter of the front end is larger than the diameter of the rear end.

3. The device for generating micro-nano bubbles in water according to claim 1, characterized in that: The second flow-guiding cavity (6) is a hollow cavity having a truncated cone-shaped structure, and a front end diameter thereof is larger than a rear end diameter thereof.

4. The device for generating micro-nano bubbles in water according to claim 1, characterized in that: A gap is provided between the end of the first flow guiding cavity (5) and the front end of the second flow guiding cavity (6).

5. The device for generating micro-nano bubbles in water according to claim 1 or 4, characterized in that: The diameter of the end of the first flow guiding cavity (5) is smaller than the diameter of the front end of the second flow guiding cavity (6).

6. The device for generating micro-nano bubbles in water according to claim 1, characterized in that: The gas cavity (7) and the gas-liquid mixing cavity (8) are both independent and adjacent relatively closed spaces.

7. The device for generating micro-nano bubbles in water according to claim 1, characterized in that: The air inlet hole (9) is connected to an air inlet duct (11).

8. The device for generating micro-nano bubbles in water according to claim 1, characterized in that: The front end of the first flow guiding cavity (5) is provided with a threaded opening, and the threaded opening is connected to the water pump (12).

9. The device for generating micro-nano bubbles in water according to claim 1, characterized in that: The front end of the first flow guiding cavity (5) is provided with a threaded opening, the threaded opening is connected to one end of a connecting pipe (13), the other end of the connecting pipe (13) is connected to a water pump (12), and the connecting pipe (13) is a hose or a hard pipe.

10. The device for generating micro-nano bubbles in water according to claim 1, characterized in that: The first flow guiding cavity (5) is provided with a first water inlet (1) at the front end and a first water outlet (2) at the rear end, and the second flow guiding cavity (6) is provided with a second water inlet (3) at the front end and a second water outlet (4) at the rear end.

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