JP3234218U - Micro bubble generation nozzle and generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an efficient microbubble generator capable of increasing the amount of microbubble generation and stabilizing the size of bubbles by using an inexpensive Venturi method with a small installation space. SOLUTION: Venturi type nozzles are provided in 3 to 6 places in a round bar evenly tapered in a circular direction, an air tube is provided in the center of the round bar, an air tube is also provided from the outer periphery of the round bar, and self-priming. It is sucked from the air valve 2 and is independently sucked into the tapered multi-tube from both to generate microbubbles. Further, the screw 20 on the discharge side generates a naturally swirling flow, and large bubbles are efficiently converted into microbubbles to increase the amount. A self-priming valve is also provided from the suction side of the pump, and a small amount of air is self-sucked by adjusting the valve. The amount of generated water is increased. Further, the pressure liquid is returned from the pressure front chamber 18 of the micro-bubble generation nozzle to the pump suction side by adjusting the valve, and the amount of micro-bubble generation is further increased and adjusted by the rotary swirling flow of the pump. [Selection diagram] Fig. 2

Description

The present invention relates to a microbubble generation nozzle and a microbubble generator that more effectively increase the amount of microbubble generation by the Venturi method.

The mainstream methods are those that generate microbubbles by an inexpensive Venturi method and those that require a pressure melting method such as an expensive pressure tank or compressor.

In the normal Venturi method, microbubbles are generated by the amount of self-absorbing air due to negative pressure due to the pressure difference before and after passing, but the amount generated is smaller than that in the pressure melting method, and the bubbles are also large and unstable. However, the pressure melting method is expensive and requires a large installation space, so it requires considerable cost and space for horizontal deployment. Therefore, by using the Venturi method, which is inexpensive and requires less installation space, we devise an efficient micro-bubble generation nozzle and micro-bubble generator that can increase the amount of micro-bubble generation and stabilize the size of the bubbles. Method This is to solve the above-mentioned problems.

In the present invention, in the micro bubble generator, venturi-type nozzles are provided in 3 to 6 places in a round bar evenly tapered in a circular direction, and an air tube having a diameter of about 3 mm is provided in the center of the round bar. The front and back are sealed with screws to prevent liquid from entering, 2 to 8 screws are attached to the leakage prevention screw on the discharge side, an air pipe is also provided from the outer circumference of the round bar, and the whole is socketed on the round bar. The round bar is held by a pipe that fits into the socket and shuts off from the outside, and the valve allows air to be independently sucked into the tapered multi-tube from the outer circumference of the round bar and the central air pipe. Air is self-sucked into the minimum diameter pipe part by the pressure difference through which it passes, and microbubbles are generated. On the discharge side, the screw is naturally rotated by the discharge liquid flow to generate a swirling flow to stabilize and increase the size of bubbles. Also, a valve is provided from the suction side of the pump, and a small amount of air is self-sucked by adjusting the valve. The amount of microbubbles generated is large, and the pressure liquid is returned from the pressure front chamber side of the microbubble generating nozzle by adjusting the valve, and the amount of microbubbles generated is further increased and adjusted by the rotating swirling flow of the pump, so the problem of the ventilary method is solved. doing.

As described above, the micro-bubble generating nozzle and the micro-bubble generating device of the present invention have a synergistic effect by making the Venturi system multi-tube, attaching a screw, and providing a natural swirling flow and a unique self-priming mechanism or a rotating swirling flow of a pump. It is possible to create an inexpensive and space-saving micro-bubble generator that increases and stabilizes the amount of generation.

Micro bubble generation nozzle body Cross-sectional view of the micro-bubble generating nozzle body Micro-bubble generation differential pressure multi-tube part front, left side, right side 4-1 Top view of micro-bubble vertical generator 4-2 Top view of micro-bubble horizontal generator

In the micro bubble generator, a general-purpose pump sucks liquid (water-based, oil-based, etc.), and a pressure difference is generated at the inlet and outlet of the 3 to 6 tapered multi-tube nozzles of the venturi method, and the central air tube and the outer circumference Negative pressure is applied from both of the air pipes, and the self-priming air that is independently adjusted by the valve is evenly sucked into the minimum diameter pipe portion of each tapered multi-tube, and microbubbles are generated. The screw discharges naturally due to the flow of liquid discharged from the microbubbles, and a swirling flow is generated to stably increase the size of the microbubbles. Furthermore, the air adjusted by the valve is self-sucked from the suction side of the pump, and the pump Since it is mixed and dissolved in the pressure liquid by the rotary swirling flow, it is deposited by the tapered multi-tube nozzle and the amount of microbubbles is increased. Further, by returning the pressure liquid in front of the tapered multi-tube on the pump discharge side to the suction side of the pump by adjusting the valve, the pressure and the flow rate are adjusted, and the amount of microbubbles generated is further increased.

Hereinafter, an embodiment will be described with reference to the accompanying drawings. 1 is a micro bubble generation nozzle, which has a 3MB generation differential pressure multi-tube part, 6 inlet counterbore multi-tube part and 7 discharge taper multi-tube part 19 minimum diameter tube part, 4 perforations that are sucked by negative pressure. It consists of an outer peripheral air pipe and an eight central air pipe. The 8 central air pipe is closed by the air cap screw of 9, and is sucked into the 5 central air pipe from the outer peripheral air intake air pipe, and 4 and 8 are adjusted and sucked from the self-priming air valve on the discharge side of 2. The 3MB generated differential pressure multi-tube section has a mechanism in which suction is performed evenly and independently from both 4 and 8. In addition, the size of the microbubble liquid is stabilized and increased by a swirling flow with 20 screws. In each microbubble generator of FIG. 4, 10 general-purpose pumps suck from 17 and 1 microbubble generating nozzle generates microbubbles and discharges from 16 discharges, but 14 suctions are used to further increase the amount of generation. Adjusted suction is performed from the side self-priming air valve, and air is mixed and dissolved in the pressure liquid using the rotary swirling flow of the 10 general-purpose pumps to increase the amount generated by one generating nozzle. Further, the pressure liquid connected to 18 is returned by the 13 return pressure / flow rate / MB adjustment valve, and the microbubbles are further increased by the rotary swirling flow of the 10 general-purpose pump. Although 4-1 and 4-2 in FIG. 4 are described, the microbubble (MB) generating nozzle main body of 1 can be installed facing upward depending on the installation location. Also, it is better to have a screw, but it is not necessary.

1 Micro bubble (MB) generation nozzle body 2 Discharge side self-priming air valve 3 MB generation differential pressure multi-tube part 4 Perforated outer peripheral air pipe 5 Outer peripheral air intake air pipe to central air pipe 6 Inlet counterbore multi-tube part 7 Discharge taper multi-tube part 8 Central air pipe 9 Air stop screw 10 General-purpose pump 11 Facing valve 12 Pressure intake 13 Return pressure / flow rate / MB adjustment valve 14 Suction side self-priming air valve 15 Prefabricated joint 16 MB Discharge 17 Suction 18 Tapered multi-tube pressure Front chamber side 19 Minimum diameter tube 20 Screw

Claims (4)

In the micro-bubble generator, venturi-type nozzles are provided in 3 to 6 places in the round bar that are evenly tapered in the circular direction, and an air tube is provided in the center of the round bar, and an air tube is also provided from the outer circumference of the round bar. Microbubbles are provided, each independently sucking air from both into each tapered multi-tube, generating microbubbles by a pressure difference, and then discharging and mixing from 3 to 6 tapered multi-tubes. Generating nozzle. Attach 2 to 8 screws to the leak prevention screw of the air pipe at the center of the discharge side of the nozzle for generating microbubbles, and rotate naturally with the discharge liquid flow from 3 to 6 tapered multi-tubes to create a swirling flow. The microbubble generating nozzle according to claim 1, wherein the microbubble generating nozzle is generated. The above nozzle for generating microbubbles is connected to a general-purpose pump, a valve is provided on the suction side, a small amount of air is self-sucked by adjusting the valve, and the rotating swirling flow of the pump mixes and dissolves the air in the pressure liquid. A micro-bubble generator that deposits and generates micro-bubbles with the micro-bubble generating nozzle according to claims 1 and 2. Claims 1 and 2 are characterized in that the pressure / flow rate is adjusted by returning from the pressure liquid side of the microbubble generating nozzle to the pump suction side with a valve, and the microbubbles are further increased and adjusted by the rotary swirling flow of the pump. The micro-bubble generating nozzle according to the above and the micro-bubble generating device according to claim 3.

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