JP6424412B1 - Fine bubble generating apparatus and method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: In a gas-liquid mixing space, a dynamic, divided and synchronized gas layer and liquid layer, by continuously and synchronously controlling the synchronization of a gas-liquid interface (9) in a small-sized and lightweight micro-bubble generating device. A balance is formed to generate high gas-liquid dissolution efficiency, and further, the entire fluid is converted to a dynamic equilibrium flow that has reached a dynamic equilibrium state without changing forever, and excess gas is generated on the flow path. The control device for exhausting the air mechanically or electrically, and the gas-liquid dissolving and storage tank for improving the gas-liquid solubility are not required at all, and the device is reduced in size and weight. [Selected figure] Figure 1

Description

The present invention, through a dynamic equilibrium or dynamic equilibrium gas-liquid fluid, development and to its method of production of high-efficiency gas-liquid mixing dissolution system microbubble generating device is small and light.

In general, there are many types of general micro air bubble generation devices in which gas-liquid dissolving and storage tanks and the like are provided between flow paths to increase gas-liquid dissolving efficiency. However, it takes a certain time for gas-liquid dissolution in the gas-liquid dissolution storage tank, and excess gas that can not be dissolved is naturally stored in the upper layer inside the tank, causing internal pressure change, so for gas-liquid dissolution It was the biggest obstacle. Therefore, conventionally, excess gas that has accumulated is discharged to the outside using a mechanical exhaust device such as an air valve or a water level detection device that electrically controls the air-liquid interface uniformly. It is required to keep the pressure in the dissolution reservoir constant at all times. (See Patent Document 1)

In the conventional micro-bubble generator, although either the pressure dissolution method or the two-phase flow swirl generation method is used broadly, there is a distinction between the respective capabilities and characteristics, and an apparatus capable of high concentration generation Is the pressure dissolution method. In this method, gas-liquid fluid is pressurized and mixed using a strong pressure pump, and after the gas-liquid solubility is further improved in a gas-liquid dissolving tank or the like, pressure is released to generate fine bubbles. On the other hand, the two-phase flow swirling method is a generation method in which a gas and liquid two-phase flow is simultaneously swirled at a high speed in a certain flow path and the gas is refined by a shearing process of shearing by centrifugal force and centripetal force. It is. (Refer to patent documents 2 and 3)

For example, in the conventional artificial carbon dioxide spring generating apparatus, the main mechanism is the mechanism of attaching high pressure carbon dioxide cylinder for business to the outside, and further, the connection with the gas-liquid mixing apparatus composed of various pipes and various control valves is required simultaneously. In addition, in the case of a gas-liquid mixing device of the type that hangs on the wall, work for hanging on the wall is necessary. The carbon dioxide cylinder itself is also required to have a safe installation site and requires careful handling. In addition to that, although the use form is different, there is also a form in which carbon dioxide gas is directly supplied to a dedicated caran and used as a carbonated spring shower. (Refer to patent documents 4 and 5)

In the mixing process by gas-liquid injection, the method of dissolving the gas in the liquid can be roughly divided into two types. One is aeration mixing , in which the liquid is vigorously exposed to gas to generate a large amount of liquid bubbles and to dissolve a large amount of gas on the expanded liquid bubble surface. The other is an aeration mixture in which a large amount of gas is jetted into the liquid to generate a cool bubble and aeration , thereby dissolving the gas in the liquid. (Refer to patent documents 6 and 7)

In addition to the above, as a technique for mixing gas-liquid fluid, there is a so-called static mixer called a static mixer. For example, when a gas-liquid fluid passes through the mixer, a repetitive swirling flow with centrifugal force and centripetal force is generated, which is a mixing technique in which liquid and liquid, liquid and liquid or solid and liquid and gas are mixed. They are techniques that are suitable mainly for mixing targets with high viscosity and different specific gravities, based on the idea of treating the fluid as an infinite number of particle groups based on their respective physical properties. The structure of the device itself is extremely simple and has various shapes and forms, from screw-like wings arranged in alternate orientations to mushroom-like projections arranged at regular intervals in multiple layers, It is characterized in that it is subdivided by the generation of cavitation having a strong pressure wave while being a fine bubble, the collision of gas and liquid fluid with each other and the shearing. (See Patent Document 8)

JP, 2002-336668, A Patent 4129290 gazette Patent No. 5660510 Patent 6032456 JP, 2012-95976, A Patent No. 4057453 Patent No. 5800185 gazette JP 2014-226666 A

Many of the conventional micro-bubble generating devices require a secondary gas-liquid dissolving process for a certain period of time through the gas-liquid dissolving and storing tank, and some gas surplus without dissolving and dividing is naturally in the upper layer inside the tank. To store the air cushion and inhibit gas and liquid dissolution, either mechanically discharge using an exhaust device such as an air valve, or electrically control the gas / liquid interface uniformly using a water level detection device or the like. , It is necessary to keep the internal pressure constant at all times. Therefore, the larger the output scale, the higher the concentration and the amount of fine bubbles generated by the apparatus, the larger the overall structure tends to be. Accordingly, an object of the present invention is to provide a micro-bubble generating device that is as compact and lightweight as possible by an efficient and effective gas-liquid mixing and dissolving system.

A cascade pump, which is a type of eddy current pump, is a type of pressurized pump in which an impeller with symmetrical grooves on the outer periphery rotates at high speed in the casing and causes fluid to be drawn up and pumped while causing swirling around the blades. It is a pump. Almost all shallow well pumps for household use are of this pump type, and are also widely used as fine bubble generating devices. A cascade pump is stronger in suction and lift (pressure) as compared with a spiral centrifugal pump, but has a disadvantage that it has a relatively low flow rate and is not completely self-priming. On the other hand, among the centrifugal centrifugal pumps, there are high-flow, high-pressure type pressurized centrifugal pumps such as multi-stage type, but they are not self-priming type and require priming water at start-up. Many problems remain for use for household use, such as heavy weight. Among them, the first problem is that the driving noise and the vibration noise are very large, which may cause trouble at the time of bathing at night or the like. Accordingly, an object of the present invention is to provide a high-performance micro bubble generator having a high flow rate and a high flow rate without bothering water and vibration noise and requiring no priming.

At present, in general, it is mainly mainstream to enjoy the artificial hot spring bath by putting solid, liquid or powdered hot spring elements directly into the bath in general, but it is mainly in the form of white bubbles of various active ingredients. The widespread use of a micro-bubble generator to generate easily is not seen yet. Most of the conventional artificial carbon dioxide spring generators are mainly of the type that uses carbonic acid cylinders for business use, and it is inconvenient to handle as household use in terms of use or structure, and the price is expensive etc. is necessary. In recent years, carbonated spring, which is widely used in medical and other fields such as health and beauty, is expected to be effective in alleviating pain such as muscle pain, arthralgia and back pain, hypertension, arteriosclerosis and rheumatism. Accordingly, the object of the present invention is to provide a micro-bubble generating device capable of easily supplying effective benefits to enhance physiological activity such as carbon dioxide gas, and having operability and easy operability which can be widely spread to general households. It is.

The static mixer, which is a static stirring mixer, is also a very effective gas-liquid mixing device, but for example, supersaturated water and air can be converted into a supersaturated gas-liquid mixture between compact flow paths with very low viscosity water and air. At present, there are still many technical issues to be reached. Therefore, it is important to be able to complete the supersaturated gas-liquid mixture necessary for the generation of the fine bubbles between the short flow paths to compensate for the drawbacks of the static stirring mixer. Accordingly, an object of the present invention is to provide a micro-bubble generator having a flow path structure and a gas-liquid compression mechanism that can be finally converted to a supersaturated gas-liquid mixed liquid in which the gas-liquid fluid is between short flow paths. It is to provide.

The advantage of aeration mixing generated in the air layer is that a large amount of air (generic gas) is dissolved in countless liquid bubbles generated by the chaotic and intense air-liquid jet flow to generate high gas-liquid dissolution efficiency. In a simple mixing of low viscosity water and air, bubbles such as bubbles are difficult to grow, and it is important how to sustain and generate a large amount of vacuoles. On the other hand, even in the liquid phase , air (a generic term of gas) is directly injected into the liquid, and aeration mixing in which countless bubbles are dispersed in the liquid is one of the effective gas-liquid dissolving methods. Therefore, if these two mixed forms can coexist, that is, it can be an extremely high gas-liquid dissolving apparatus. Accordingly, an object of the present invention is to provide a method for normalizing and stably controlling and maintaining a state in which aeration mixing and aeration mixing are synchronized in a gas-liquid mixing space.

The micro-bubble generating device of the present invention is characterized by the following means in order to solve the above-mentioned problems.

As a first means, the present invention relates to the provision of a micro-bubble generating device which is made as small and light as possible as a whole by an efficient and effective gas-liquid mixing / dissolving system. Water pressure increasing / decreasing means (2a, 2b, 2c) where water pressure and flow velocity increase / decrease by gradually narrowing toward or gradually expanding, and gas / liquid injection in multiple directions to coordinate control of synchronization of air / liquid interface (9) The synchronization of the liquid injection means (8) and the air-liquid interface (9) spontaneously generates a dynamic equilibrium synchronized with the gas-liquid two-layer, and the air-liquid mixing means of the field completely isolated from the outside 3) A series of new system construction consisting of gas-liquid dissolving means (4) for promoting gas-liquid solubility, and gas-liquid compression means (5) for kneading and compressing into supersaturated gas-liquid mixed liquid As a solution

As a second measure, the diaphragm shown in FIGS. 11 and 12 is related to the provision of a high-performance micro-bubble generator having a large flow rate without bothering the driving noise and vibration noise and requiring no priming water and simple operation. As described in claim 2, the number of diaphragm valves (27) that reciprocate to suck gas / liquid fluid from the water absorption path and discharge it from the water discharge path behind the water absorption / discharge unit of the pump (20) is at least one or more The solution is to use an electrically driven motor type diaphragm pump (20).

As a third means, it relates provides microbubble generating apparatus having both the active ingredient can be easily supplied, and widely effective and easy to handle operability can spread to general households to improve the physiological activity such as carbon dioxide, air of claim 3 as in claim 1 liquid mixture supply means (24), by direct or proximity to the suction port of the diaphragm pump (20), and solutions that also serves as a good effectiveness and operability.

As a fourth means, the provision of a flow path structure and a gas-liquid compression mechanism which can be finally converted to a supersaturated gas-liquid mixed liquid in a short flow path of the gas-liquid fluid. The path structure is improved so that the gas-liquid mixing means (3) is the main component, and then the gas-liquid dissolving means (4) and the gas-liquid compression means (5) The diaphragm pump (20), which is placed horizontally in a substantially horizontal state orthogonal to the diaphragm pump (20), is provided at the shortest circumference . Next, as shown in FIG. 8, the gas-liquid fluid is finally supersaturated in the gas-liquid state by using the gas-liquid compression means (5) composed of the flow path that is folded back into three layers as a strong gas-liquid compression mechanism. The solution is to be efficiently converted into a mixed solution.

The fifth means relates to a method for normalizing and stably controlling a state in which aeration mixing and aeration mixing are synchronized in the gas-liquid mixing space, and as in the fifth to sixth aspects, it is elongated at the time of gas-liquid jetting. In addition, it is possible to perform gas-liquid jet in many directions violently from the injection holes that are uniformly drilled around the outer periphery of the gas-liquid jet nozzle by adding slope angle adjustment that is optimal for tilting the gas-liquid jet means (8) in hollow shape and hollow structure. The coordination of the gas-liquid interface (9) that forms the boundary between the gas layer and the liquid layer is continuously coordinated and controlled, and at the same time the dynamic balance as spatial order formation is spontaneous, divided and synchronized with the gas layer and the liquid layer. It is a solution to occur regularly and constantly.

The new system construction of claim 1 enables efficient and effective gas-liquid mixing and gas-liquid dissolution, so that the exhaust system for mechanically processing the excess gas and the electric-gas-liquid interface are controlled uniformly. water level detection device for retaining the internal pressure and, further the gas-liquid dissolving reservoir to promote gas-liquid solubility one switching installation becomes unnecessary, reduction in size and weight is very effectively implemented as compared with the conventional device. In addition, since the number of parts can be reduced due to its simple structure, the manufacturing cost can be reduced and the price can be reduced, which is effective for the spread of the apparatus. In addition, because the number of parts is small, there are few parts where parts come into contact and wear, so there are few failures, and the cost for repair and maintenance can be reduced.

The diaphragm pump (20) according to claim 2 has high quietness and can cope with high flow rate and high pressure as pressurizing pump means, and also has excellent pumping recovery ability by high self-priming ability, It also has excellent durability against idling. The quietness of the drive noise is a pressure pump means that is very effective for a warm bath device that is also expected to be used at night, etc., and further having 1 to 8 diaphragm valves (27) separately for each output. The pump (20) can cope with various product developments. For example, a microminiature micro bubble generator consisting of one or two diaphragm valves (27) can be applied to a portable beauty effect product etc., and a generator consisting of three or four is by bathing pet's or carbonated spring It is most suitable for the development of health products such as foot baths, and the production apparatus consisting of 5 and 6 can be mainly used as a fine bubble apparatus for home bathing. In addition to this, when a higher flow rate is required for industrial use, an ideal flow rate can be effectively obtained by increasing the diaphragm valve (27) to seven or eight.

Gas-liquid mixture supply means according to claim 3 (24), since a one-piece directly coupling or proximity to the suction port side (28) of the diaphragm pump (20), for example, carbon dioxide gas supply system from the high pressure carbon dioxide cylinder In place of the external equipment conventionally required, carbon dioxide gas becomes a container as a supply source in a substantially box shape obtained by a simple handling operation. Since the system itself is compact and lightweight, it can be freely carried anywhere, and there is no need for wall mounting installation of the gas-liquid mixing apparatus. The method using the gas-liquid mixed liquid supply means (24) is the conventional carbonated spring generator In comparison with it, it can be said that it is a very effective form also in terms of its convenience, effectiveness, and operability.

According to the fourth aspect of the present invention, there are few physical factors that become resistance of gas-liquid fluid in the conduit installed at the shortest circumference, pressure loss of gas-liquid fluid energy is greatly reduced, and the force of gas-liquid fluid declines. It is efficiently sent to the gas-liquid compression means (5). Therefore, the discharge amount and force of the fine bubbles increase effectively as compared with a device having a complicated flow path, and the rising from the start to the formation of the fine bubbles becomes very quick. Also, as shown in FIG. 8, when the gas-liquid fluid passes between narrow flow paths formed by including the compression mixing interior part (11) by the compression mixing exterior part (12), annular grooves (17 In the above, complex vortices and swirls are generated, and the mixing and compression are repeated intensively, so that the gas-liquid fluid is efficiently and quickly converted into a supersaturated gas-liquid mixture . Incidentally, by arranging the majority of the flow path substantially horizontally, the risk of air entrapment is effectively prevented structurally.

As described in the fifth to sixth aspects of the present invention, the coordination of the gas-liquid interface (9) forming the boundary between the gas layer and the liquid layer in the gas-liquid mixing means (3) is constantly coordinated and controlled. In this case, a large amount of liquid bubbles generated by the scattering of the gas-liquid fluid become aeration mixtures that repeat collisions and frictions with one another, and even with the liquid layer, the limp bubbles are sent into the liquid and dispersed as aeration mixture to synchronize, so very high air content The liquid dissolution efficiency is efficiently generated, and the gas-liquid fluid is instantaneously converted to a substantially saturated gas-liquid mixture . Further, the remaining excess gas is dispersed and dispersed in each of the microbubbles by the gas-liquid jet flow, and the bubbles repeat friction and the negative charges are generated on the surface, and they repel each other. Keeps the internal pressure nearly constant, always suspended, and the fluid as a whole has no time-varying changes and does not use any special equipment for dynamic equilibrium that has reached dynamic equilibrium It will metastasize.

  1 is an overhead view of a micro-bubble generating device according to an embodiment of the present invention. It is the internal structure schematic of the gas-liquid mixed liquid supply means by one Embodiment of this invention.   It is a related view of the water pressure increase-decrease means and gas-liquid injection means by one Embodiment of this invention.   It is a side view of the gas-liquid mixing means by one Embodiment of this invention.   It is the gas phase liquid layer schematic in the gas-liquid mixing means by one Embodiment of this invention.   FIG. 5 is a schematic view of a static mixer in a gas-liquid dissolving means according to an embodiment of the present invention.   It is a flow-path path | route figure inside the gas-liquid compression means by one Embodiment of this invention.   It is the ring-shaped schematic diagram inside gas-liquid compression means by one Embodiment of this invention.   FIG. 5 is a detailed structural view of the inside of the gas-liquid release means according to an embodiment of the present invention.   It is an injection hole front view of a disk member by one embodiment of the present invention.   FIG. 5 is a schematic view of a diaphragm valve according to an embodiment of the present invention   It is the schematic of the water absorption / discharge unit by one Embodiment of this invention.

The embodiment of the present invention will be described below with reference to the drawings, showing how to generate fine air bubbles and how to realize a reduction in size and weight by taking the prototype currently completed as an example. It will be described in detail. However, the embodiment shown below is one example for embodying the technical idea of the present invention, and the present invention is not limited to the following. In particular, the dimensions, materials, shapes or relative arrangements of components, etc. are merely one example of description unless specifically limited otherwise, and each component or each component to be configured is a single component. The elements may be composed of a plurality of members or elements, or conversely, the plurality of members or elements may be integrated into a single member or element.

For example, although it is often found that a multistage centrifugal pressure pump or the like corresponding to a high pressure and a high flow rate is appropriately used as an industrial fine bubble generating apparatus, it is also a gist of the present invention . The electric diaphragm pump (20) was judged to be the best solution for dealing with various situations and for generating micro bubbles of low vibration and low driving noise for the following reasons.

The diaphragm pump (20), as shown in FIG. 12, is a diaphragm valve (27) that reciprocates, such as a quadruple type as shown in FIG. 11, behind a water suction and discharge unit consisting of a water suction path (25) and a discharge path (26). Of at least 1. By setting the number to at most 8, it is possible to cope with the production of micro bubble generation devices of various output scales according to each use application, and industrial related applications requiring a large flow rate from a very small beauty related device with skin care effect. Devices can be developed. In the embodiment of the present invention, a prototype using a diaphragm pump (20) consisting of five diaphragm valves (27) is completed, but it may be eight or more. In addition, it is desirable not to install the release path which diverts a part of gas-liquid fluid in the pump head and suppresses the excessive rise of water pressure and the pulsation of the fluid.

[The following mainly relates to the outline of the gas introduction means (22) and the gas-liquid mixed liquid supply means (24). ]
1 and 2 are a bird's-eye view and a schematic view showing the basic structure of the micro-bubble generator and the internal structure of the gas-liquid mixed liquid supply means (24), respectively.

As Figure 2, the gas-liquid mixture supply means (24) is a diaphragm pump (20) directly connected or proximity to the suction port, in a container comprising a supply source such as carbon dioxide gas in a substantially box shape, inside the tip opening Is provided with a tubular tube (16) covered with a mesh. Also, it is filled with a solid foaming agent (33) processed into any of a substantially annular shape, a substantially powder shape, a roughly coarse particle shape or a lump shape, and carbon dioxide gas produced from the solid foaming agent is dissolved in water As a result, the gas and liquid are mixed to form a gas and liquid mixed liquid, which is directly supplied to the diaphragm pump (20). Incidentally, the gas-liquid mixture may be injected from the outside instead of the solid foaming agent (33).

In the gas-liquid mixed liquid supply means (24), water introduced from a liquid supply source via a liquid introduction pipe (31) to which a flexible material such as a rubber hose or the like reticulated device used for removing solid foreign matter is attached. (Generic term for liquid) and air (generic term for gas) supplied from the gas introducing means (22) become gas-liquid fluid and pass through the water inlet (21) as shown in FIG. 2 to the diaphragm pump (20) Supplied.

As shown in FIG. 2, the gas-liquid mixture supply means (24) comprises a substantially box-like container body (1) and a lid (32) fitted openably and closably to the container body (1). A cylindrical tube (16) is installed at the discharge port inside to increase the filling efficiency from swirling gas-liquid fluid, and the outer wall and inner wall of the container body (1), lid outer wall and lid inner wall of lid (32) The tubular tubes 16 are each made of a metal, a nonmetal, or a composite material thereof.

The gas introducing means (22) is a supply source of air (generally referred to as gas), and adjusts the pumping pressure of the diaphragm pump (20) by increasing or decreasing the gas supply amount.

Further, the change in the pressure of the gas-liquid fluid is closely correlated with the diameter and the number density of the microbubbles and is correlated.

[The following mainly relates to the state and effect of gas-liquid mixing which occurs in the gas-liquid mixing means (3) and the embodiment thereof. ]
Embodiments of the present invention can be divided mainly into two families. First, a high gas-liquid dissolution efficiency is generated by the gas-liquid jetting means (8) which is a slender hollow structure in the gas-liquid mixing means (3) violently jetting the gas-liquid from the jetting holes in multiple directions. A system in which gas-liquid fluid is instantaneously converted constantly into a substantially saturated gas-liquid mixture , and at the same time, a large amount of microbubbles also causes the gas-liquid mixture to be suspended. The other is that when the suspended gas-liquid mixture passes through the narrow multi-layer flow path structure in the gas-liquid compression means (5), kneading and compression are repeated while generating vortex and swirl, and the final Is a system that is dynamically converted to a supersaturated state. As shown in FIG. 6, when the gas-liquid mixture passes through the static stirring mixer (18) in the gas-liquid dissolving means (4), the gas-liquid solubility is improved due to the generation of repetitive swirling flow, The microbubbles are generated by the rapid pressure release from the gas-liquid release means (7).

As shown in FIG. 3, the water pressure increasing / decreasing means (2a) screwed on the discharge port side (29) of the diaphragm pump (20) via the joint communication pipe (19a) creates a flow in a substantially L-shaped direction and the flow Water pressure and flow velocity are increased by the different diameter type pipe material whose path sectional area gradually narrows in the direction of travel, and the injection pressure and injection speed of the gas-liquid injection means (8) pressed into the threaded joint pipe (30) are energized. There is. Water pressure increasing / decreasing means (2a) The downstream outlet and the pressure plug portion (6a) screwed in contact via the threaded joint pipe (30) are also screwed with the generally cylindrical gas-liquid mixing means (3) upstream end As a result, the gas-liquid injection means (8) is pivoted substantially concentrically with the gas-liquid mixing means (3) in a state where it protrudes in the downstream direction from the upstream end. The pressure plug portion (6a) is preferably in the form of an openable / closable sealed system for the convenience of component replacement and maintenance.

As in the embodiment 35, when the gas-liquid mixing means (3) whose upstream end is sealed is inclined to a desired inclination angle, the gas-liquid injection means (8) axially fixed on the inside is also supported. It is appropriate that similar gradient angles be added and be adjustable in tandem. In addition, the size, material, shape, relative arrangement position, etc. of the gas-liquid mixing means (3) are such that the tuning of the gas-liquid interface (9) is constantly coordinated and controlled internally, and the gas-liquid two layers In the continuous formation of the divided and synchronized dynamic balances , they are not uniform and may be changed at any time.

As shown in FIG. 5, a group of injection holes are drilled all around the gas-liquid jetting means (8) whose tip is closed, and the gas-liquid fluid is in the axial direction of the gas-liquid jetting means (8) On the other hand, it is desirable that the gas be jetted in multiple directions in the range of 30 degrees to 150 degrees, and the gas-liquid mixing means (3) be violently hit against the inner wall and mixed. The shape and the injection form of the gas-liquid injection means (8) are not necessarily limited to the embodiment of the present invention in the same meaning as in the 36th embodiment, and may be another shape and form.

The positions of the injection holes on the outer periphery of the gas-liquid injection means (8) are generated by using an inner wall near the upstream of the gas-liquid mixing means (3) to generate sufficient propulsive force to push the gas-liquid fluid downstream. From the viewpoint of securing an ideal air layer volume, as shown in FIG. 3, the positions of the gas-liquid jetting means (8) are perforated in a uniform manner between the downstream tips closed from the approximate center in the longitudinal direction. It is preferable that changes in flow velocity or water pressure occur due to the definition of the non-perforated part and the non-perforated part. The gas-liquid fluid jetted at a high pressure from the injection holes is instantaneously released to a nearly saturated gas-liquid mixture by the rapid pressure release and the shock wave of intense mixing accompanied by complex turbulent interference and destruction. Is converted to

As shown in FIG. 5, the dynamic equilibrium aeration mixing in the aeration mixing the liquid layer in the vapor layer coexist is spontaneous with gas-liquid injection means (8) are coordinated control the tuning of the gas-liquid boundary surface (9) However, it is important that the length and diameter of the gas-liquid injection means (8), the number and diameter of the injection holes, and the position of the holes should be sufficient to maximize the aeration space (15). It is important to process and adjust in consideration to maximize the air space and to perform sufficient aeration mixing . In the process of interlocking from the dynamic balance of “effect of the invention 23” to the subsequent dynamic balance , the gas-liquid jet form of all the gas-liquid jet means (8), which is the main premise, is a very important component And is the core of the present invention.

Finally, as shown in FIG. 7, through the gas-liquid compression means (5) in which two outer pipes and an inner pipe are loosely inserted concentrically inside each other to form a flow path structure which is folded back into three layers in the entire device. Liquid fluid is repeatedly compressed and mixed while generating complex and large and small vortices and swirls, and as shown in Fig. 8, grinding and grinding like a millstone is performed on an annular groove (17) in several rows. By the addition of the crushing effect, it is efficiently converted to a supersaturated gas-liquid mixture .

[The following mainly relates to the tilting of the gas-liquid mixing means (3) to the gas-liquid injection means (8) and the effect thereof. ]
First, the diaphragm pump (20) is operated to self-suck gas fluid. After confirming that the liquid has started to be discharged from the fine bubble discharge nozzle (23), the gas introduction means (22) is gradually opened to inject air to raise the water pressure. The gas-liquid fluid begins to be released one after another in the form of increasingly turbid fine bubbles, starting from about 0 to 5 to 8 Mpa in a pressure gauge. However, within the gas-liquid mixing means (3) arranged almost horizontally, synchronization of the gas-liquid interface (9) has not yet occurred, and there is a temporary formation of a gas-liquid bilayer. After a while, the air layer is replaced by the liquid layer , and the gas-liquid jetting means (8) is completely buried in the liquid, and the turbid fine bubbles are also returned to the transparent liquid.

Although it is temporary around the air-liquid injection means (8) at the beginning of injection, a constant aeration space (15) is formed and aeration mixing starts, but the synchronization of the air-liquid interface (9) is established. Under no circumstances, the gas-liquid two-layer state is gradually lost at the same time as the start of the gas-liquid injection, and finally the gas-liquid injection means (8) is submerged in the liquid layer. The effect can not be exhibited, resulting in simple aeration with only aeration mixing, which significantly reduces the gas-liquid dissolution efficiency. Therefore, it becomes difficult to continuously produce the supersaturated gas-liquid mixed liquid in the gas-liquid compression means (5), and it becomes impossible naturally to generate the fine bubbles.

On the other hand, this time, the gas-liquid mixing means (3) is dropped 90 degrees in the depression angle direction, and the gas-liquid injection is performed. As in Embodiment 42, initially, the corresponding aeration space (15) is temporarily formed on the upstream side of the gas-liquid mixing means (3), but it is also lost over time, and this time excess air is high pressure air. As a result, the area around the gas-liquid injection means (8) is finally covered with high-pressure air. Therefore, the aeration mixture is lost, and furthermore, the high pressure air acts as a cushion and completely inhibits the gas-liquid dissolution itself. As a result, the turbid fine air bubbles which were being discharged smoothly are mere transparent even with the arrows. I will return to the running water again.

Therefore, as shown in FIG. 4, the incomplete gas / liquid mixing state of the embodiments 41 and 43 is gradually inclined by adjusting the gas / liquid jetting means (8) gradually from the substantially horizontal state in the range of 45 degrees at maximum. I will go. By doing so, as shown in FIG. 5, in the gas-liquid mixing means (3), synchronization of the gas-liquid interface (9) that forms the boundary between the gas layer and the liquid layer starts to be induced gradually, and finally stability is achieved. Coordinated control begins. As a result, in the mixing space, a synchronous cycle of dynamic equilibrium is formed spontaneously and constantly without being submerged in the liquid layer or being overwhelmed by the high pressure air of the air layer , and once adjusted to the optimum gradient angle When the above is completed, the diaphragm pump (20) is kept in the horizontal state next time, and the same dynamic balance as in the previous time occurs continuously, so that the readjustment of the gradient angle is basically unnecessary.

Incidentally, it is possible to incline the gas-liquid mixing means (3) not in the depression angle direction but in the elevation angle direction to add a slope adjustment. That is, after securing a new flow path as a path along which the gas-liquid fluid is transferred in the vicinity of the upstream end of the gas-liquid mixing means (3), the gas-liquid injection means (8) is extended and the injection holes are further arranged. The same position may be drilled on the opposite side 180 degrees opposite to the original position so that the flow direction is reversed in the case of tilting. At this time, no special processing is required for the gas-liquid injection means (8) other than the extension of the nozzle and the change of the position of the injection hole group.

While the dynamic balance is constantly reproduced, the problems of both the embodiment 41 and the embodiment 43 can be solved, and in the generation process of the dynamic balance , as described in the embodiment 38, the surplus gas is Is dispersed and diffused into innumerable minute air bubbles, and the friction is repeated repeatedly, and since it is mutually repelled by the static electricity generated on the air bubble surface, the suspended state is always maintained, and the internal pressure is kept approximately constant. That is, the fluid as a whole does not change with time as it is forever, transitions to a dynamic equilibrium state which has reached a dynamic equilibrium state, and continues to transport the gas-liquid fluid without any delay.

As described above, by the combination of high gas-liquid dissolution efficiency by dynamic balance and constant gas-liquid fluid transfer by dynamic balance , the micro-bubble generating device of the present invention is characterized by including an air valve and a gas-liquid dissolution reservoir on the flow path. all without the need to install extra equipment etc., from its very compact structure, compared to conventional fine bubble generating device, thereby realizing a significant reduction in size and weight.

[The following relates to the embodiment of each member joined after the gas-liquid mixing means (3). ]
As shown in FIG. 6, the downstream end of the gas-liquid mixing means (3) is screwed with the pressure plug (6b), and further a flow in the substantially L-shaped direction is made through the joint communication pipe (19b). It screw-connects with the water pressure increasing / decreasing means (2b) of the different diameter type pipe material whose cross sectional area gradually narrows, and further, the gas / liquid dissolving means (4) is joined in a substantially L shape in a substantially horizontal state. Preferably, the gas-liquid dissolving means (4) is set to be smaller in diameter than the gas-liquid mixing means (3), and the water pressure and the flow velocity are increased to generate a repetitive swirling flow strongly. Thereafter, the gas-liquid fluid passes through the water pressure adjusting means (2c) in which the flow passage cross-sectional area gradually spreads, and is sent to the gas-liquid compression means (5) joined in the substantially L-shape direction in a substantially horizontal state.

As shown in FIG. 6, the water pressure increasing / decreasing means (2c) is screwed to the pressure plug portion (6c) via the joint communication pipe (19c), and the pressure plug portion (6c) is disposed substantially horizontally. The upstream end of the gas-liquid compression means (5) is sealed by screwing. It can generally be said that, for example, in the case of a gas-liquid mixing means (3) manufactured using a polyvinyl chloride pipe, the polyvinyl chloride pipe itself absorbs the impact of the gas-liquid jet flow collision, as can be said for the channel Because it is a member that can be a shock-absorbing material, and the polyvinyl chloride pipe itself also slightly repeats contraction and expansion, constantly changing the internal pressure, and affecting gas-liquid dissolution, Preferably, the conduit member is a non-inflatable member such as metal.

The internal structure of the gas-liquid compression means (5) is, as shown in FIG. 7, two substantially cylindrical tubes of different diameters are engaged with each other while being loosely inserted on one another. The compression / mixture sheath (5) is closed by screwing with a pressure plug (6d) sealing the dead end of the cul-de-sac, and the other end of the compression / mixture interior (11) is open at the tip. 12) is contained, and a channel path which is folded back to two layers is formed inside. Although the gas-liquid compression means (5) as a whole is folded in three layers, it may be three or more layers. The position of the gas-liquid two-phase inlet (13) to be bored in the compression mixing exterior part (12) can be as close as possible to the end of the bag channel from the viewpoint of securing a long flow path as long as possible. It is preferred that the holes be drilled. Also, the same entrance may be formed on the diametrically opposite side of 180 degrees to form a total of two entrances. In addition, the loose insertion width at which the two conduits are loosely inserted is in the range of 1 mm to 20 mm, depending on the output scale.

The gas-liquid fluid entering from the gas-liquid two-phase intake port (13) turns back again from the tip inlet port (14) of the compression mixing interior part (11) while generating a swirling swirling flow, so that high pressure is generated. In the state, force such as centrifugal force and centripetal force is added, and kneading and compression are repeated again. At this time, as shown in FIG. 8, annular grooves (17) are formed on the inner and outer peripheries of the compression and mixing interior portion (11) and the inner peripheral surface of the compression and mixing exterior portion (12). Preferably, complex vortices of various sizes are generated simultaneously. Finally, as shown in FIG. 9, a large amount of fine bubbles are generated by the rapid pressure release from the disc member (10) held down by the fine bubble discharge nozzle (23) at the final point of the compression mixing interior part (11). Be done.

In the gas-liquid compression means (5) of a compact structure, in order to mix the gas-liquid fluid strongly and efficiently through kneading and compression, an annular ring cut in the circumferential direction of the inner and outer peripheral walls of the embodiment 51. The grooves (17) are very important, and in the present invention, grooves of 2 mm in depth at equal intervals of 10 mm were judged to be appropriate, and were adopted for the prototype. The incising of the groove is intended to generate and knead a millstone-like effect with a shearing effect and a grinding effect, and a groove that is too deep can, on the contrary, be an excessive resistance to gas-liquid fluid Therefore, it is preferable that the effective depth and interval width of the annular groove (17), and also the loose insertion width between the conduits, be appropriately changed as needed depending on the output size of the device.

  As shown in FIG. 10, the disc member (10), which is the starting point for the generation of the fine bubbles, comprises one through the center and four through holes in total, and a total of five through holes, as shown in FIG. The member (10) is held between the removable fine air bubble discharge nozzle (23) screwed into the pressure plug portion (6d) and the downstream end of the compression mixing interior portion (11) It is incorporated in the means (7). The structure of the disc member (10) is characterized in that it is not a narrow structure like a Venturi tube, but a simple form of only a circular metal disc.

As an effective hole diameter for making the microbubbles white, as a result of attempting many demonstration experiments, it is appropriate to change the diameter of the injection hole between 8 mm and 12 mm for each output scale of the device. The hole diameter of the disc member (10) is closely related to the diameter and number density of the microbubbles, and if the disc member (10) is temporarily used during the period of use, the hole loss or diameter increase by erosion of the cell collapse. Even if it can be seen, the fine bubble discharge nozzle (23) is of a detachable screw type so that the disc member (10) can be easily replaced and maintenance is easy.

As shown in FIG. 9, there is no special lock-up structure due to the protruding annular annular ring and the few semicircular annular ring on the outer periphery of the nozzle body on the periphery of the tip of the fine bubble discharge nozzle (23). It is economical and convenient if the water hose etc. is fitted immediately and firmly fitted without coming off.

In addition to the above-described embodiments, the present invention can be variously modified within the scope of the present invention, for example, by appropriately changing the number, arrangement, combination or material of its components and adding conventional technical means. Design changes are possible. In the present invention, since there may be a wide variety of embodiments derived therefrom, it goes without saying that various modifications can be made without departing from the essence of the invention described in the claims. . The above embodiments and the modifications thereof are included in the invention described in the claims and the equivalents thereof.

"Effect of the embodiment"
According to the embodiment of the present invention, the number of parts required is very small, and because of the very compact and simple structure, it can be installed anywhere without taking up space. This is a great benefit, especially in large-scale microbubble generators for industrial use, and of course also in the reduction of production costs. The number of parts at least failure because it is small, including the cost of it and the frequency of maintenance, outside that can significantly reduce the running cost, micro-fine bubble generating apparatus, including the products of homes for the subject from for business until this is, According to an embodiment of the present invention, it is achievable reduction in size and weight and low cost, especially in the general households, fine Hosoki foam Ru can be enjoyed by anyone with ease. Also, what enables a constant and highly efficient gas-liquid mixing and dissolving system in a space completely shielded from the outside, pre-mixes a predetermined amount of air with the fuel, for example, the premixing of fossil fuels. It is expected that an ideal air-fuel ratio can be obtained.
"Other embodiment 1"
In another embodiment, instead of the gas introducing means (22), a portion of the gas-liquid fluid is diverted to an aspirator additionally installed from the arbitrarily defined flow path after the gas-liquid mixing means (3), and A large amount of air (generic gas) is drawn from pressure and supplied to the diaphragm pump (20) directly or through artificial water supply means (24). The aspirator may be used alone or in combination with the gas introduction means (22).
"Other embodiment 2"
As in the embodiment 32, since the adjustment of the pumping pressure by the gas introducing means (22) and the diameter and the number density of the fine bubbles are closely linked, in another embodiment, with respect to a certain electrical signal inputted arbitrarily An electronic system may be constructed and installed to automatically control the diameter and number density of the microbubbles in a certain state from the relationship between the supplied gas supply amount and the pumping pressure.
"Other embodiment 3"
In another embodiment, a level gauge may be attached so that the horizontal state of the micro-bubble generating device can be seen at a glance, or an adjustment mechanism may be provided to easily adjust the horizontal angle.

DESCRIPTION OF SYMBOLS 1 ... Container main body 18 ... Static type stirring mixer 2a, 2b, 2c ... Water pressure increase / decrease means 19a, 19b, 19c, 19d ... Joint connecting pipe 3 ... Gas-liquid mixing means 20 ... Diaphragm pump 4 ... Gas-liquid dissolution means 21 ... Water absorption Port 5 ... gas-liquid compression means 22 ... gas introduction means 6a, 6b, 6c, 6d ... pressure plug portion 23 ... fine air bubble discharge nozzle 7 ... gas-liquid release means 24 ... gas-liquid mixed liquid supply means 8 ... gas-liquid injection means 25 ... Water absorption path 9 ... Air / liquid interface 26 ... Water discharge path 10 ... Disk member 27 ... Diaphragm valve 11 ... Compression mixing interior part 28 ... Suction port side 12 ... Compression mixing exterior part 29 ... Discharge port side 13 ... Gas and liquid two-phase Intake port 30 ... threaded joint pipe 14 ... tip inflow port 31 ... liquid introduction pipe 15 ... aeration space 32 ... lid 16 ... cylindrical tube 33 ... solid foaming agent 17 ... annular groove

Claims (3)

When the pressurizing pump means introduces a liquid or gas, the solid foaming agent (33) which generates carbon dioxide gas dissolves to form a gas-liquid mixed liquid, and in the gas-liquid mixed space, a porous gas-liquid jet nozzle The constant coordination control of the gas-liquid interface (9) spontaneously generates spatial order formation divided and synchronized in the gas-liquid two layers, and finally the gas-liquid mixture is supersaturated A micro-bubble generating device in which micro-bubbles are generated by rapid pressure reduction,
A flexible liquid inlet tube (31) for introducing said liquid from a liquid source;
A gas introducing means (22) for adjusting the water pressure, the diameter of the fine bubbles and the number density by increasing or decreasing the amount of the gas injected into the liquid;
A solid blowing agent (33) which is directly connected to or in close proximity to the suction port of the pressure pump means and generates carbon dioxide gas is filled therein, and the carbon dioxide gas generated from the solid blowing agent dissolves in water. Gas-liquid mixed liquid supply means (24) in which the gas and liquid are mixed in
A diaphragm pump (20) for maintaining the horizontal axis of the motor drive motor substantially horizontal, which is the pressure pump means;
Water pressure increase / decrease means (2a, 2b, 2c) for changing the water pressure and the flow velocity with a different diameter type pipe material which creates a flow in a substantially L-shaped direction and the flow passage cross-sectional area gradually narrows or spreads in the traveling direction;
The porous gas-liquid jet nozzle according to the above-mentioned porous type, wherein the gas-liquid jet means (8) is an elongated hollow structural body that jets gas-liquid in multiple directions from the jet holes.
This is a substantially cylindrical conduit that incorporates the porous gas-liquid jet nozzle that projects inward from the upstream end in the gas-liquid mixing space, and is completely isolated from the external environment, and can be turned over in an oblique direction. Liquid mixing means (3),
A gas-liquid dissolving means (4) which is internally provided with a static stirring mixer and generates a repetitive swirling movement flow to improve the gas-liquid solubility of the gas-liquid mixture;
Inside the compression mixing interior part (11) where the compression mixing exterior part (12), which is the outer pipe, is an inner pipe. By enclosing, a flow path is formed in the outer pipe to be folded back into two layers, and the gas-liquid compression means (5) kneads and compresses the gas-liquid mixed liquid to a supersaturated state;
A gas-liquid release means (7) in which the fine bubbles are generated using a replaceable disc member (10) which is held down by screwing with the fine bubble discharge nozzle (23) which can be removed;
A micro-bubble generator comprising:           The micro-machine according to claim 1, wherein the number of diaphragm valves (27) reciprocatingly moved for sucking in and discharging gas-liquid fluid is at least one and at most eight at the pump head of said diaphragm pump (20). Air bubble generator.           The gas-liquid mixture supply means (24) comprises a substantially box-like container body (1), a lid (32) fitted openably and closably to the container body (1), and the gas-liquid fluid It consists of a cylindrical tube (16) that increases gas-liquid filling efficiency from the flow straightening effect, and the outer wall and inner wall of the container body (1), the outer wall of the lid (32) and the inner wall of the lid, the cylindrical tube (16) The respective members are formed of any material of metal, nonmetal or composite material thereof, and processed into any of a substantially annular shape, a substantially powder shape, a substantially coarse particle shape or a lump shape The micro-bubble generating device according to claim 1, characterized in that it is filled with a solid blowing agent (33).

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