JP2011156525A - Gas-liquid mixing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a gas-liquid mixing device capable of shortly retaining bubbles having a nano-sized diameter in liquid for a long time. <P>SOLUTION: The gas-liquid mixing device includes a fixed quantity feeder 12 for mixing liquid and gas supplied under pressure from a booster pressure pump 11 to generate a gas/liquid mixture, and a generator 13 for generating a swirl flow and mixing gas and liquid. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

    The present invention relates to an apparatus for generating fine bubbles, and relates to a gas-liquid mixing apparatus capable of generating nanobubbles having a bubble diameter of nano size in a liquid and retaining the bubbles for a long time.

    In recent years, interest in the natural environment has increased, and research and development have been conducted on various methods and devices for treatment technologies including water quality improvement, purification treatment, sterilization and sterilization.

    Conventionally, it is known that microbubbles are effective, and a device for generating microbubbles and techniques and effects therefor have been studied and reported in various ways.

    However, in the conventional apparatus and method, the gas-liquid mixed flow supply port is connected in a tangential direction with respect to the cylindrical outer peripheral surface, the method of diffusing bubbles by the rotating blades, and the mirror surface of the inner surface of the gas-liquid mixed generating cylindrical tube It was difficult to manufacture a device such as a finishing method, the structure was complicated, and there was a problem that accuracy was required for the processing method.

    The problem to be solved by the present invention is to provide a feeder in which the production of the apparatus is simple and gas-liquid mixing can be performed in a short time, and a gas-liquid mixing apparatus using a generator using the feeder.

    Another object of the present invention is to provide a gas-liquid mixing device that can generate bubbles of nanobubbles in a short time and stay in the liquid.

    In order to solve the above-described problems, the first aspect of the present invention provides a processing method in which a gas-liquid fluid supply port of a feeder in which a swirling flow is generated is provided at the central portion in the axial direction of a cylinder.

    Further, the gas-liquid mixed solution discharged from the feeder is supplied to the generator to generate a swirling flow and provide the gas-liquid mixed solution in a short time.

The gas-liquid mixing device of the present invention generates a swirling flow and a feeder that is supplied from the center of the cylinder and generates a swirling flow along the cylindrical tank wall surface in order to stably transfer the mixing ratio of the gas-liquid mixing solution. A generator is provided, and nano-sized bubbles can be generated in a short time and fine bubbles can be retained in the liquid for a long time. Also, by inserting various gases, fine bubbles suitable for the purpose can be generated, and the effect can be expected in a wide range of fields.
Examples are given below.
1. Natural environment purification: Water purification of lakes, rivers, ponds, etc.
2. Wastewater treatment: Floating material floating treatment,
3. Farming industry: Sterilization / sterilization treatment 4, Food processing field: Sterilization, freshness preservation 5, Industrial field: Removal of harmful substances, deodorization, decolorization, sterilization, separation / mixing treatment of wastewater 6, Medical field: Sterilization, pain Stop, prevent 7, health: Sterilize and clean indoor air

FIG. 1 is an explanatory view of a gas-liquid mixing apparatus 1 of the present invention.
The base liquid 21 in the base liquid tank 16 is sent to the circulation pump 11 through the pipe 20b. In the middle, gas is inserted from the gas storage container 14 through the pipe 20c. In order to refine the bubbles in the gas mixture, the feeder 12 and the generator 13 for further reducing and discharging the bubbles are provided. The fine bubbles discharged from the generator 13 through the gas-liquid mixture discharge port 17 are discharged into the mixed liquid 22 in the mixing tank 15.
The base liquid 21 serving as the base of the mixed liquid 22 is transferred from the base liquid tank 16 through the pipe 20b and merged from the gas storage container 14 through the valve 18b at a predetermined ratio. The combined gas-liquid mixed solution is fed into the circulation pump 11 and discharged from the pump 11.
The valve 18a is opened, the mixed liquid 22 is merged with the base liquid 21 of the pipe 20b through the pipe 20a, and the gas storage container 14 fed from the pipe 20c is merged and fed to the circulation pump 11 to generate a gas-liquid mixed liquid. When the mixing tank 15 is full, the valves 18 c and 18 b are closed and only circulation through the pipe (mixed liquid) 19 is performed. The feeder 12, the generator 13, and the gas / liquid mixture discharge port 17 connected by the pipe 19 constitute the gas / liquid mixing of the present invention.

    The present invention can be widely used in sterilization, sterilization, deodorization, separation, purification and prevention in industry, agriculture, livestock, food, medicine and the like.

It is a basic block diagram of the gas-liquid mixing apparatus in this invention. It is internal explanatory drawing of the feeder used for a gas-liquid mixing apparatus. It is internal explanatory drawing of the generator used for a gas-liquid mixing apparatus. It is internal explanatory drawing of the generator which discharges a swirl | vortex flow from 2 directions used for a gas-liquid mixing apparatus.

11: Circulating pump 12: Metering feeder 13: Generator 14: Gas storage container 15: Mixing tank 16: Base liquid tank 17: Gas-liquid mixing outlet 18: Valve 19: Pipe (mixed liquid)
20: Pipe 21: Base liquid 22: Mixed liquid 31: Acceleration cylindrical part 32: Supply port 33: Discharge pipe 34: Discharge port 35: Discharge hole 41: Dispersion cylindrical part 42: Supply port 43: Discharge pipe 44: Discharge port 45 : Discharge hole 51: Discharge port 52: Dispersion cylindrical part 53: Discharge pipe 54: Discharge hole

Claims (4)

  Supplying from the central part of the cylinder to generate a swirling flow along the cylindrical tank wall surface in order to stably transfer the mixing ratio of the gas-liquid mixture generated by supplying gas to the liquid flow supplied under pressure from the pressure pump A gas-liquid mixing apparatus comprising a quantitative feeder (hereinafter referred to as a feeder) and a generator for generating a swirling flow.   The feeder and the generator are circular in cross section with the supply hole as the central axis, and the swirling method of the feeder and the generator is to discharge the gas-liquid mixture from the discharge holes at both ends of the discharge pipe fixed perpendicularly to the supply hole. The gas-liquid mixing device according to claim 1,   2. The gas-liquid mixing device according to claim 1, wherein the generator discharges the swirling flow from a discharge port of one end face of the cylinder.   The generator for discharging the swirling flow in two directions is characterized by inserting and fixing a gas-liquid fluid discharge hole on both end faces of the cylindrical member and a pipe having a discharge hole from the diametrical direction in the middle of the central axis of the cylindrical member The gas-liquid mixing device according to claim 1

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