Novel nanobubble generating device

Abstract

The utility model discloses a novel nanobubble generating device which comprises a main body, a bubble cutting mechanism, an air inlet pipe and a water inlet pipe, the main body is internally provided with an air dissolving cavity, the center of the upper end of the main body is provided with a discharge port, and the lower end of the main body is internally provided with a filter assembly. The bubble cutting mechanism comprises a motor arranged on one side of the main body, a rotating shaft arranged in the main body and a transmission box arranged at the lower end of the main body, an output shaft of the motor and the lower end of the rotating shaft are both connected with the transmission box, and the rotating shaft is rotationally connected with the interiors of the lower portion and the upper end of the main body through bearings; the circular filter screen cleaning device has the advantages that the circular filter screen is quickly flushed by rotatably sprayed water flow by opening the valve of the blow-off pipe, and generated sewage is discharged through the blow-off port and the blow-off pipe, so that the replacement frequency of the circular filter screen is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bubble generating devices, in particular to a novel nano-bubble generating device. Background Technique

[0002] Nano-bubbles refer to bubbles with diameters between one hundred nanometers and ten micrometers. Nano-bubbles have the advantages of strong suspended solid adsorption capacity, long residence time, good stability, and high mass transfer efficiency. In recent years, nano-bubble flotation technology has been widely applied to various industrial fields such as oil-containing wastewater treatment, oxidation ditch aeration, chemical reaction devices, and fish and shellfish farming.

[0003] The patent with the application number 201921583705.5 discloses a novel nano-bubble generating device, including a fixed cylinder, a bubble generating cylinder is inserted on the fixed cylinder, a stirring mechanism is arranged in the bubble generating cylinder, an annular groove is arranged on the side wall of the bubble generating cylinder, a fixing mechanism for cooperating with the annular groove is arranged on the fixed cylinder, a through cavity is jointly arranged in the fixed cylinder and the bubble generating cylinder, a pressurizing hole is arranged at the top of the cavity, a motor is fixedly connected to the lower end surface of the fixed cylinder, the output shaft end of the motor penetrates the bottom wall of the fixed cylinder and extends into the cavity, and two symmetrically arranged fixing blocks are fixedly connected to the output shaft end of the motor. A water guide pipe is arranged on the side wall of the fixed cylinder, and an air guide pipe is arranged on the water guide pipe. The utility model is provided with a detachable bubble generating cylinder, and the bubble generating cylinder prone to problems can be easily replaced; a filter screen installation mechanism is provided to conveniently replace the ineffective filter screen.

[0004] The above-mentioned bubble generating device has the following deficiencies: 1. The air inlet pipe is directly connected to the water inlet pipe, resulting in relatively large initial bubble diameters; 2. The filter screen is installed on the water inlet pipe, and a large amount of impurities accumulate on the left side of the filter screen. When replacing the filter screen, the impurities need to be cleaned, and the sewage generated during cleaning is likely to enter the interior of the main body. At the same time, the replacement frequency of the filter screen is relatively high. Content of the Utility Model

[0005] The purpose of the utility model is to provide a novel nano-bubble generating device to solve the problems raised in the above background technique.

[0006] To achieve the above object, the present utility model provides the following technical solutions: a novel nano-bubble generating device, including a main body, a bubble cutting mechanism, an air inlet pipe, and a water inlet pipe. A dissolved air chamber is provided inside the main body. A discharge port is opened at the center of the upper end of the main body. A filtering component is installed inside the lower end of the main body. The bubble cutting mechanism includes a motor disposed on one side of the main body, a rotating shaft disposed inside the main body, and a transmission box disposed at the lower end of the main body. The output shaft of the motor and the lower end of the rotating shaft are both connected to the transmission box. The rotating shaft is rotatably connected to the lower and upper parts of the main body through bearings. A crushing blade is installed at the upper end of the rotating shaft. A central hole is provided in the middle and lower part of the rotating shaft, and a number of water outlet holes communicating with the central hole are evenly distributed on the hole wall. The lower end of the rotating shaft extends into a water tank outside the transmission box. The air inlet pipe is disposed on one side of the main body and is connected to an air equalizing mechanism inside the main body. One end of the water inlet pipe communicates with the water tank.

[0007] Preferably, the air equalizing mechanism includes an annular column disposed inside the main body. The annular column is entirely outside the rotating shaft. An annular pipe communicating with the air inlet pipe is installed at the upper end of the annular column. A number of conduits are embedded in the inner wall of the annular column. A number of air outlet holes are provided along the length direction of the pipe wall of the conduit. The upper ends of a number of the conduits communicate with the annular pipe.

[0008] Preferably, a circular filter net is outside the rotating shaft, and the center of the connecting plate is rotatably connected to the rotating shaft.

[0009] Preferably, it further includes a sewage discharging mechanism. The sewage discharging mechanism includes a sewage discharging port opened at the bottom of the main body and a sewage discharging pipe connected to the sewage discharging port.

[0010] Preferably, a valve is installed at the port of the sewage discharging pipe.

[0011] Compared with the prior art, the beneficial effects of the present utility model are:

[0012] 1. By providing an air equalizing mechanism inside the main body, connecting the air inlet pipe to the annular pipe of the air equalizing mechanism, and at the same time opening air outlet holes on the pipe walls of a number of conduits, during use, the gas is discharged through the air outlet holes of the conduits, effectively reducing the diameter of the initially formed bubbles.

[0013] 2. By opening a central hole in the middle and lower part of the rotating shaft, opening a number of water outlet holes communicating with the central hole in the middle and lower part of the rotating shaft, connecting the rotating shaft and the motor through the transmission box, and combining with the operation of the sewage discharging mechanism, after long-term use, by opening the valve of the sewage discharging pipe, the rotating and spraying water flow can quickly wash the annular filter net, and the generated sewage is discharged through the sewage discharging port and the sewage discharging pipe, thereby reducing the frequency of replacing the annular filter net. Description of the Drawings

[0014] Figure 1 It is a schematic structural diagram of the whole of the present utility model;

[0015] Figure 2 It is a schematic structural diagram of the rotating shaft of the present utility model;

[0016] Figure 3 It is a schematic structural diagram of the air equalizing mechanism of the present utility model.

[0017] In the figure: 1, main body; 2, air inlet pipe; 3, water inlet pipe; 4, air dissolution chamber; 5, discharge port; 6, motor; 7, rotating shaft; 8, transmission box; 9, crushing blade; 10, central hole; 11, water outlet hole; 12, water tank; 13, annular column; 14, annular pipe; 15, conduit; 16, air outlet hole; 17, annular filter screen; 18, connecting plate; 19, sewage discharge port; 20, sewage discharge pipe. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0019] Please refer to Figures 1-3 , the present utility model provides a technical solution: a novel nano-bubble generating device, including a main body 1, a bubble cutting mechanism, an air inlet pipe 2, and a water inlet pipe 3. A air dissolution chamber 4 is arranged inside the main body 1. A discharge port 5 is opened at the center of the upper end of the main body 1. A filtering component is installed inside the lower end of the main body 1. The bubble cutting mechanism includes a motor 6 arranged on one side of the main body 1, a rotating shaft 7 arranged inside the main body 1, and a transmission box 8 arranged at the lower end of the main body 1. The output shaft of the motor 6 and the lower end of the rotating shaft 7 are both connected to the transmission box 8. The rotating shaft 7 is rotationally connected to the lower part and the upper end inside of the main body 1 through bearings. A crushing blade 9 is installed at the upper end of the rotating shaft 7. A central hole 10 is opened in the middle and lower part of the rotating shaft 7, and a plurality of water outlet holes 11 communicating with the central hole 10 are uniformly arranged on the hole wall. The lower end of the rotating shaft 7 extends into a water tank 12 outside the transmission box 8. The air inlet pipe 2 is arranged on one side of the main body 1 and is connected to the air equalizing mechanism inside the main body 1. One end of the water inlet pipe 3 is communicated with the water tank 12.

[0020] It can be understood that the main body 1 is composed of an annular shell and end covers at both ends. The end covers and the annular shell are detachably connected by bolts, which is convenient for subsequent replacement of the crushing blade 9 and the annular filter screen 17.

[0021] The air equalizing mechanism includes an annular column 13 disposed inside the main body 1. The annular column 13 is entirely outside the rotating shaft 7. The upper end of the annular column 13 is provided with an annular pipe 14 communicating with the air inlet pipe 2. A plurality of conduits 15 are embedded in the inner wall of the annular column 13. A plurality of air outlet holes 16 are formed in the pipe wall of the conduit 15 along the length direction. The upper ends of the plurality of conduits 15 are all communicated with the annular pipe 14.

[0022] The filtering assembly includes an annular filter net 17 and a connecting plate 18 disposed above the annular filter net 17. The annular filter net 17 is outside the rotating shaft 7. The center of the connecting plate 18 is rotatably connected to the rotating shaft 7.

[0023] It further includes a sewage discharging mechanism. The sewage discharging mechanism includes a sewage discharging port 19 opened at the bottom of the main body 1 and a sewage discharging pipe 20 connected to the sewage discharging port 19.

[0024] Among them, the sewage discharging port 19 is inside the annular filter net 17.

[0025] A valve is installed at the port of the sewage discharging pipe 20.

[0026] Specifically, when using the present utility model, the air inlet pipe 2 and the water inlet pipe 3 are respectively connected to external air supply equipment and water supply equipment, so that gas and water enter the air dissolving cavity 4 of the main body 1 to form a water-gas mixture. The motor 6 is started, and the rotating shaft 7 is driven to rotate through the transmission box 8. At the same time, the crushing blades 9 rotate synchronously, thereby cutting and crushing the bubbles.

[0027] In the above process, water enters the water tank 12 through the water inlet pipe 3, enters the central hole through the lower port of the rotating shaft 7, and finally is discharged from the water outlet hole 11 and is filtered by the annular filter net 17; gas enters the annular pipe 14 through the air inlet pipe 2, then enters the inside of the conduit 15, and finally is discharged from the air outlet holes of the conduit 15.

[0028] After long-term use, by stopping the operation of the air supply equipment and opening the valve at the port of the sewage discharging pipe 20, and starting the motor 6. At this time, the water conveyed by the water inlet pipe 2 is discharged from the water outlet hole 11 and sprayed on the inner wall of the annular filter net 17. At the same time, since the rotating shaft 7 is in a rotating state, the impurities on the annular filter net 17 are washed away, and the washed sewage is discharged through the sewage discharging port 19 and the sewage discharging pipe 20 in sequence.

Claims

1. A novel nano bubble generating device, characterized in that: The invention comprises a main body (1), a bubble cutting mechanism, an air inlet pipe (2), and a water inlet pipe (3); an air dissolving chamber (4) is arranged inside the main body (1); a discharge port (5) is provided at the center of the upper end of the main body (1); a filter assembly is installed inside the lower end of the main body (1); the bubble cutting mechanism comprises a motor (6) arranged on one side of the main body (1), a rotating shaft (7) arranged inside the main body (1), and a transmission box (8) arranged at the lower end of the main body (1); the output shaft of the motor (6) and the lower end of the rotating shaft (7) are both connected to the transmission box (8); the rotating shaft (7) The lower and upper ends of the main body (1) are rotatably connected via bearings; a crushing blade (9) is mounted on the upper end of the rotating shaft (7); a central hole (10) is provided in the middle and lower part of the rotating shaft (7); and a plurality of water outlet holes (11) connected to the central hole (10) are evenly distributed on the hole wall; the lower end of the rotating shaft (7) extends to a water tank (12) outside the transmission box (8); the air inlet pipe (2) is arranged on one side of the main body (1) and connected to an air equalizing mechanism inside the main body (1); and the end of the water inlet pipe (3) is connected to the water tank (12).

2. A novel nano bubble generating device according to claim 1, characterized in that: The gas equalizing mechanism comprises a ring column (13) arranged inside the main body (1), the ring column (13) being located as a whole on the outside of the rotating shaft (7), a ring tube (14) connected to the air inlet pipe (2) being installed at the upper end of the ring column (13), a plurality of conduits (15) being embedded in the inner wall of the ring column (13), a plurality of air outlet holes (16) being opened on the tube wall of the conduit (15) along the length direction, and the upper ends of the plurality of conduits (15) being connected to the ring tube (14).

3. A novel nano bubble generating device according to claim 1, characterized in that: The filter assembly comprises an annular filter screen (17) and a connecting plate (18) arranged on the upper part of the annular filter screen (17); the annular filter screen (17) is located outside the rotating shaft (7); and the center of the connecting plate (18) is rotatably connected to the rotating shaft (7).

4. A novel nano bubble generating device according to claim 1, characterized in that: It also comprises a sewage discharge mechanism, which comprises a sewage discharge port (19) opened at the bottom of the main body (1) and a sewage discharge pipe (20) connected to the sewage discharge port (19).

5. A novel nano bubble generating device according to claim 4, characterized in that: A valve is installed at the port of the sewage discharge pipe (20).

Images