JP2016016353A - Nanobubble liquid production storage apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a nanobubble liquid production storage apparatus for generating and storing nanobubble-containing nanobubble liquid from microbubble liquid, for easily and inexpensively using the nanobubble liquid.SOLUTION: The nanobubble liquid production storage apparatus is provided for generating and storing nanobubble liquid in which a nanobubble is contained in liquid. The nanobubble liquid production storage apparatus is composed of: a tank for storing a replenishing liquid of the liquid and the nanobubble liquid; a circulation pump for sucking-discharging the liquid and circulating the liquid in the tank; and a microbubble generator connected to a liquid discharge part of the circulation pump, transforming gas included in the liquid into a microbubble thereby forming the liquid into microbubble-containing liquid, and the microbubble-containing liquid is formed into the nanobubble liquid by holding the microbubble-containing liquid in the tank for a predetermined time.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a nanobubble liquid production and storage device that generates and stores nanobubble liquid containing nanobubbles from a microbubble-containing liquid in order to use the nanobubble liquid easily and inexpensively.

  Research on micro-nano bubbles started around 1985. Since micro-nano bubbles are a new technical field, there are many points that have not been elucidated. Currently, the following three phenomena are known for micro / nano bubbles.

  The first is a phenomenon in which dirt is removed by entering the back of fibers and pores because the microbubbles are small in size. The second is a phenomenon in which microbubbles discharged into water are pushed by water pressure in water and become smaller nanobubbles. Microbubbles disappear or become nanobubbles in about 30 to 60 seconds in the liquid, but the bubbles that have become nanobubbles are said to stay in the liquid for several hours to several days. The third is a phenomenon called crushing, in which the nanobubbles are eventually destroyed by water pressure and the internal air pressure becomes 300 atmospheres or more. It is said that when this crushing occurs, an ultrasonic wave is generated at a speed of about 400 km / h and a high heat close to 5500 ° C. is generated. Various micro / nano bubble effects such as easy removal of dirt due to the interaction of these three phenomena have been observed.

  From the above phenomenon, it is considered that nanobubbles have a wider application range than microbubbles in the liquid, and a method for efficiently using nanobubbles is desired.

Various methods for generating nanobubbles have been studied and there are methods for directly creating nanobubbles. However, since the apparatus is large and expensive, it is more efficient to generate microbubbles and change them into nanobubbles.

  As means for generating microbubbles, about six types such as a high-speed shearing method, a pressure crushing method, and a cavitation method are known.

However, for that purpose, it is indispensable to generate fine microbubbles of 25 to 30 microns or less, which are likely to become nanobubbles.

  Many structures such as Patent Documents 1 and 2 are disclosed as structures for generating microbubbles. Moreover, the inventor has already developed a structure capable of generating microbubbles, although as a shower head (Patent Document 3). As shown in Patent Document 3, in order to increase the flow speed of the liquid, a twist is added to the flow of the liquid, the inlet of the flowing water channel is widened and gradually squeezed like a water bottle, the middle is cylindrical and the outlet is By passing through a water passage that spreads in a trumpet shape, fine microbubbles are generated by cavitation.

JP 2013-107043 A JP 2012-176335 A Japanese Patent No. 2011-183125

  Accordingly, an object of the present invention is to provide a nanobubble liquid production and storage device that generates and stores nanobubble liquid containing nanobubbles from a microbubble-containing liquid in order to use the nanobubble liquid easily and inexpensively. .

In order to solve the above problems, the present invention
(1)
A nanobubble liquid production storage device for generating and storing a nanobubble liquid containing nanobubbles in a liquid,
A tank for storing the liquid replenisher and the nanobubble liquid;
A circulation pump for sucking and discharging the liquid and circulating it in the tank;
A microbubble generator connected to a liquid discharge portion of the circulation pump to microbubble a gas contained in the liquid to make the liquid a microbubble-containing liquid;
Consists of
A nanobubble liquid production and storage device characterized in that a nanobubble liquid is obtained by holding the microbubble-containing liquid in the tank for a predetermined time.
(2)
The nanobubble liquid production storage device according to (1), wherein gas or a liquid containing gas is injected before the microbubble generator to increase the amount of microbubbles.
(3)
The nanobubble liquid production storage device according to (1) or (2), further comprising a liquid feed pump for feeding the nanobubble liquid to a use environment.
(4)
The nanobubble liquid production storage device according to any one of (1) to (3), wherein the liquid replenishment liquid is controlled to be fed by opening and closing a ball tap stopper provided in the liquid supply section. .
(5)
The liquid replenisher is controlled to be supplied by opening and closing an electromagnetic valve provided in the liquid supply unit based on a signal from a liquid level sensor provided in the tank (1). The nanobubble liquid production storage apparatus in any one of-(3).
(6)
The nanobubble liquid production storage device according to any one of (1) to (5), wherein the liquid is water and the gas is air.
(7)
The nanobubble liquid production storage device according to any one of (1) to (6), wherein the liquid replenisher is a microbubble-containing liquid.
(8)
The nanobubble liquid production storage device according to any one of (1) to (7), wherein a gas is bubbled into the liquid stored in the tank.
(9)
The nanobubble liquid production storage device according to any one of (1) to (8), wherein the tank is hermetically sealed and gas is sent to the tank space to increase the dissolved amount of the liquid.
(10)
By circulating the liquid containing the gas stored in the tank using the pump equipped with the microbubble generator while circulating in the tank, the liquid is retained in the tank for 30 seconds or more.
A method of using a nanobubble liquid, wherein microbubbles are changed to nanobubbles to form a nanobubble liquid containing nanobubbles, and the nanobubble liquid is sent to a use environment and used.
It was.

  For some time, it has been known that cavitation occurs by gradually opening a water channel narrowed down as in Bernoulli's law. However, an apparatus that causes such a phenomenon in the tank and uses the generated micro / nano bubbles has not been commercialized.

  In the experiment, it was confirmed that the contained air contained in the tap water was converted into microbubbles with a combination of a pump having a pipe diameter of 13 mm and a lift of 8 m, which is the size of a normal water pipe.

  With regard to the pipe diameter, the pumping capacity may be low if the pipe diameter is reduced, and conversely, if the pipe diameter is increased, the pumping capacity needs to be increased. Depending on the viscosity of the liquid and the amount of gas contained, the required pump capacity and the amount of microbubbles generated vary.

  Naturally, the amount of micro / nano bubbles generated varies depending on the shape of the micro bubble generator.

  Since the present invention has the above-described configuration, the liquid containing the gas stored in the tank is simply circulated in the tank using a pump equipped with a microbubble generator, and the liquid in the tank is microscopic. It is a simple device that bubbles.

  When there is no dissolved gas or less dissolved gas in the liquid in the tank, by injecting and mixing the liquid containing gas or gas from the outside between the circulation pump and the microbubble generator, It is also possible to secure the expected amount of micro / nano bubbles.

  The installation place of the circulation pump or the microbubble generator may be inside or outside the tank. The method of supplying and replenishing the liquid to the tank may be manual, or a ball tap or an electromagnetic valve linked with an electric sensor may be selected according to the application and automatically controlled.

  Nanobubble liquid can be used in a wide range of industries and applications. For example, it is possible to improve fuel efficiency by installing it in a use environment where a cleaning effect is expected, for example, washing, washing hair, and other fuel tanks of automobiles and ships. It can be used as an alternative to oil-based lubricants such as coolant for cutting and cutting.

By using not only air but also carbon dioxide gas or ozone gas as a nanobubble-like liquid instead of gas, the concentration can be maintained for a long time.

1 is a schematic perspective view of a first embodiment of a nanobubble liquid production storage apparatus according to the present invention. It is a perspective schematic diagram of 2nd embodiment of the nano bubble liquid production storage apparatus which is this invention. It is a perspective schematic diagram of 3rd embodiment of the nano bubble liquid production storage apparatus which is this invention. It is a perspective schematic diagram of 4th embodiment of the nano bubble liquid production storage apparatus which is this invention.

  Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. In addition, this invention is not limited to the following Example.

  As shown in FIG. 1, a nanobubble liquid production storage apparatus 1 according to the present invention includes a tank 2, a circulation pump 3, a microbubble generator 4, a liquid feed pump 5, a manual liquid supply apparatus 6, and an automatic supply apparatus. It consists of the liquid device 7, and produces | generates and stores the nano bubble liquid 8 which made the liquid contain the nano bubble. In addition, about Example 2 or later, since description of the same code | symbol and name as Example 1 is the same as that of Example 1, the description is abbreviate | omitted.

  The tank 2 is a container for storing the replenishing liquid 8a and the nanobubble liquid 8, and the shape and capacity are appropriately selected according to the place of use, the amount of use, and the like. Even if the upper part is opened as shown in FIG. 1, the upper part may be provided with a lid and sealed. Examples of the liquid include water, fuel, and other substances that can contain a gas. The replenishing liquid 8a is a liquid that supplements the amount of liquid that contains nanobubbles.

  The circulation pump 3 is placed in the tank 2, and includes a main body 3a including a pump that sucks and discharges liquid to circulate in the tank 2, a liquid suction unit 3b, a liquid discharge unit 3c, and a pump It consists of a plug 3d for supplying driving power and a cord. The pump can be driven by a commercial power source or a battery. The circulation pump 3 continuously supplies the microbubbles to the liquid in the tank 2 by circulating the liquid. In the case of a liquid with impurities, a filter or the like is attached to the circulation pump 3 to filter the impurities. When a filter is provided, it is better to attach it in front of the microbubble generator 4. It is desirable that the filter has a structure that can be easily maintained.

  The microbubble generator 4 is connected to the discharge part 3c of the circulation pump and turns the gas contained in the liquid into microbubbles to make the liquid into a microbubble-containing liquid. As the microbubble generator 4, Patent Documents 1-3 and the like can be used, and the microbubble generator 4 is not particularly limited as long as the gas contained (dissolved) in the liquid can be microbubbled.

Although some nanobubbles are generated simultaneously with the microbubbles in the liquid immediately after passing through the microbubble generator 4, there is no influence on the nanobubble liquid production and storage device of the present invention.

The microbubble-containing liquid is stored in the tank 2 until it is used. By holding the microbubble-containing liquid in the tank 2 for a predetermined time, the microbubbles naturally become nanobubbles, and the nanobubble liquid 8 is manufactured. Mainly, microbubbles of 25 microns or less change into nanobubbles. In addition, about 60 seconds, which is the time lag until microbubbles become nanobubbles, the nanobubbles can be efficiently used depending on the adjustment based on the capacity of the tank 2 and the linkage with the automatic automatic liquid feeder 7 and the remaining time of the nanobubbles. It does not become a hindrance to the practical application of use.

The liquid feed pump 5 passes the liquid in the tank 2 through the microbubble generator with the circulation pump 3, generates microbubbles in the tank, and uses the nanobubble liquid 8 as it becomes nanobubbles. To liquid. In addition, the pressure and arrangement | positioning of the liquid feeding pump 5 which sends out the nanobubble liquid 8 from the tank 2 can select arbitrary places.

  The manual liquid supply device 6 includes a pipe 6a for feeding the replenisher 8a into the tank 2 and a valve 6b for adjusting the amount of the replenisher 8a fed. The manual liquid supply device 6 is mainly used for injecting liquid into the tank 2 at the start of production of the nanobubble liquid 8. When the amount of the nanobubble liquid 8 used is large, continuous injection can be performed.

  The manual liquid supply device 6 may be manually supplied from a hose with a lever handle or the like, as in gasoline refueling at a gas station. Further, the microbubble generator 4 may be attached to the middle or outlet of the hose to supply liquid while making the gas into microbubbles.

  The automatic liquid supply device 7 automatically controls the pipe 7a for supplying the replenisher 8a into the tank 2 and the injection amount of the replenisher 8a into the tank 2 to automatically adjust the liquid level of the nanobubble liquid 8, that is, the liquid level is lowered. Then, a replenishing liquid 8a is injected, and when the liquid in the tank 2 reaches a predetermined liquid level, it comprises a ball tap plug 7b for stopping the replenishing liquid 8a. By maintaining the liquid level at a predetermined position, nanobubbles can be stably and efficiently supplied into the liquid, and the quality of the nanobubble liquid 8 used is always high. Here, the pipe 7 a penetrates the side surface of the tank 2, but the pipe 7 a may of course be drawn into the tank 2 from the upper opening of the tank 2.

  Since the nanobubble liquid production and storage device 1 according to the present invention has such a configuration, the nanobubble liquid 8 can be easily used in a use environment.

  As shown in FIG. 2, the nanobubble liquid production storage device 1a according to the present invention includes a tank 2, a circulation pump 3, a microbubble generator 4, a liquid feed pump 5, a manual liquid supply device 6, an automatic supply device. It consists of a liquid device 7 and an air supply tube 9.

  The air supply tube 9 is a tube that is connected to a branch pipe before the microbubble generator 4 and injects a gas or a liquid containing gas. By supplying a gas component from the air supply tube 9, microbubbles are generated. The amount of microbubbles in the liquid that has passed through the vessel 4 can be increased, and as a result, nanobubbles can be present in the nanobubble liquid 8 at a high concentration.

  As shown in FIG. 3, the nanobubble liquid production storage device 11 according to the present invention includes a tank 12, a circulation pump 13, a microbubble generator 4, a liquid feed pump 5, and a liquid supply device 16.

  The tank 12 is provided with a hole for allowing the liquid in the tank 12 to flow to the circulation pump 13 by arranging the circulation pump 13 outside the tank 12. It is of course possible to arrange the circulation pump 13 together with the liquid feed pump 5 on the base 18 or the lid placed on the upper part of the tank 12 without communicating with the tank 12.

  The circulation pump 13 is disposed outside the tank 12, and includes a main body 13a that incorporates a pump that sucks and discharges liquid and circulates it in the tank 2, a suction pipe 13b that allows the liquid to flow from the tank 12 to the main body 13a, and a liquid tank. 12 comprises a discharge pipe 13c returning to 12, a plug 3d for supplying drive power to the pump, and a cord. The pump can be driven by a commercial power source or a battery. The circulation pump 13 continuously supplies the microbubbles to the liquid in the tank 12 by circulating the liquid.

  The liquid supply device 16 senses the liquid level, a pipe 6a for supplying the replenisher 8a into the tank 12, an electromagnetic valve 16b for adjusting the amount of the replenisher 8a, a controller 16c for controlling opening and closing of the electromagnetic valve 16b, and the like. The upper liquid level sensor 16d and the lower liquid level sensor 16f send a liquid level signal that is a source of the opening / closing signal of the electromagnetic valve 16b to the controller 16c.

  For example, if the liquid is a conductor such as water, the upper and lower liquid level sensors 16d and 16f include two electrodes 16e and 16g at the tip, and sense the liquid level by energizing or de-energizing. For example, as shown in FIG. 3, the upper and lower liquid level sensors 16d and 16f are locked to the edge of the tank 12 by a locking tool 16h and fixed in position.

  When liquid is stored up to the electrode 16e of the upper liquid level sensor 16d, the electrode is energized, and a liquid level signal is generated that causes the controller 16c to close the electromagnetic valve 16b and generate a signal to stop the replenishment liquid 8a. The supply of the replenisher 8a is stopped. On the other hand, the lower liquid level sensor 16f is turned off when the liquid level is lower than the electrode 16g, and the controller 16c generates a signal for opening the electromagnetic valve 16b in response to the interruption of the current supply. A signal is sent to the electromagnetic valve 16b to start replenishment of the replenisher 8a.

  Thereby, the liquid level in the tank 12 is automatically controlled within a predetermined range. As a result, the nanobubble liquid 8 is stably manufactured and stored in the tank 12 as the circulation pump 13 is driven.

  As shown in FIG. 4, the nanobubble liquid production storage device 11 a according to the present invention includes a tank 12, a circulation pump 13, a microbubble generator 4, a liquid supply pump 5, a liquid supply device 16, and an air supply tube. Nine.

  As in the second embodiment, the air supply tube 9 is connected to the branch pipe in front of the microbubble generator 4 and is a pipe for injecting gas or a liquid containing gas, and replenishes the gas component from the air supply tube 9. By doing so, the amount of microbubbles in the liquid that has passed through the microbubble generator 4 can be increased, and as a result, nanobubbles can be present in the nanobubble liquid 8 at a high concentration.

  In Examples 1 to 4, the microbubble generator 4 is attached to the pipe 6a of the manual liquid supply device 6, the pipe 7a of the automatic liquid supply device 7, the tip or the middle portion of the pipe 6a of the liquid supply device 16, and the tank 2 , 12 may be injected with a liquid containing microbubbles. At that time, an air supply tube 9 may be attached in front of the microbubble generator 4 to supply gas.

In order to increase the gas content of the liquid staying in the tank 2 or the tank 12, it is desirable to attach the air supply tube 9 in front of the microbubble generator 4. Furthermore, gas may be bubbled into the liquid accumulated in the tanks 2 and 12. Also, by injecting gas into the space in the tanks 2 and 12, the gas dissolves in the stored liquid, and the amount of dissolved gas in the retained liquid in the tanks 2 and 12 increases to some extent and increases the amount of nanobubbles. Can do. In addition, the amount of dissolved gas further increases by making the gas in the space a pressurized gas.

DESCRIPTION OF SYMBOLS 1 Nano bubble liquid production storage apparatus 1a Nano bubble liquid production storage apparatus 2 Tank 3 Circulation pump 3a Main body 3b Suction part 3c Discharge part 3d Plug 4 Microbubble generator 5 Liquid feed pump 6 Manual liquid supply apparatus 6a Pipe 6b Valve 7 Automatic liquid supply apparatus 7a Pipe 8 Nano bubble liquid 8a Replenishment liquid 9 Air supply tube 11 Nano bubble liquid production storage device 11a Nano bubble liquid production storage device 12 Tank 13 Circulation pump 13a Body 13b Suction pipe 13c Discharge pipe 16 Liquid supply apparatus 16b Electromagnetic valve 16c Controller 16d Upper liquid level Sensor 16e Electrode 16f Lower liquid level sensor 16g Electrode 16h Locking tool 18 units

Claims (10)

A nanobubble liquid production storage device for generating and storing a nanobubble liquid containing nanobubbles in a liquid,
A tank for storing the liquid replenisher and the nanobubble liquid;
A circulation pump for sucking and discharging the liquid and circulating it in the tank;
A microbubble generator connected to a liquid discharge portion of the circulation pump to microbubble a gas contained in the liquid to make the liquid a microbubble-containing liquid;
Consists of
A nanobubble liquid production and storage device characterized in that a nanobubble liquid is obtained by holding the microbubble-containing liquid in the tank for a predetermined time. The nanobubble liquid production storage device according to claim 1, wherein a gas or a liquid containing a gas is injected before the microbubble generator to increase the amount of microbubbles. The nanobubble liquid production storage device according to claim 1 or 2, further comprising a liquid feed pump for feeding the nanobubble liquid to a use environment. 4. The nanobubble liquid production according to claim 1, wherein the liquid replenishing liquid is controlled to be fed by opening and closing a ball tap stopper provided in the liquid supply section. 5. Reservoir device. 2. The liquid replenishing liquid is controlled to be supplied by opening / closing an electromagnetic valve provided in the liquid supply section based on a signal from a liquid level sensor provided in the tank. The nanobubble liquid production storage device according to any one of claims 3 to 4. The nanobubble liquid production storage device according to any one of claims 1 to 5, wherein the liquid is water and the gas is air. The nanobubble liquid production storage device according to any one of claims 1 to 6, wherein the liquid replenishment liquid is a microbubble-containing liquid. The nanobubble liquid production storage device according to any one of claims 1 to 7, wherein a gas is bubbled into the liquid stored in the tank. 9. The nanobubble liquid production storage device according to claim 1, wherein the tank is hermetically sealed and gas is sent to the space of the tank to increase the dissolved amount of the liquid. By circulating the liquid containing the gas stored in the tank using the pump equipped with the microbubble generator while circulating in the tank, the liquid is retained in the tank for 30 seconds or more.
A method of using a nanobubble liquid, wherein microbubbles are changed to nanobubbles to form a nanobubble liquid containing nanobubbles, and the nanobubble liquid is sent to a use environment and used.

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