WO2001036105A1

WO2001036105A1 - Micro-bubble generating nozzle and application device therefor

Info

Publication number: WO2001036105A1
Application number: PCT/JP2000/008010
Authority: WO
Inventors: Toshihiko Yahiro
Original assignee: Aura Tec Co., Ltd.
Priority date: 1999-11-15
Filing date: 2000-11-13
Publication date: 2001-05-25
Also published as: AU1309401A; JP4002439B2

Abstract

A micro-bubble generating nozzle comprising an introduction unit (1) for pressurized liquid and gas, a cylindrical bubble generating space (2), a pressurizing liquid introducing hole (4) and a gas introducing hole (5) formed in the introduction unit (1) and opened to the bubble generating space (2), the pressurized liquid introducing hole (4) being opened in the end face of the introducing unit (1) and the gas introducing hole (5) being opened in the side face of the introduction unit (1), and a regulating valve (7) disposed in a gas introducing tube (6) communicating with the gas introducing hole (5), for regulating a gas introducing amount. Pressurized liquid introduced into the bubble generating space (2) from the opening of the pressurized liquid introducing hole (4) is discharged into the space under a high pressure to cause a separation region. The gas introduced from the gas introducing hole (5) is dispersed into discharged water current as micro-bubbles (fine bubbles) due to this separation phenomenon, the dispersion amount and size of the micro-bubbles being properly regulated by regulating the opening of the gas introduction amount regulating valve (7).

Description

Specification

Microbubble generating nozzle and its application device

The present invention discharges fine bubbles having a diameter of several tens of microns into water and air in order to purify rivers, lakes, marshes, tap water, etc., and to improve the washing ability of washing water due to dirt in washing machines, toilets, and the like. And a device for applying the same to a microbubble generating nozzle. Background art

The water purification function of microbubbles is already widely known, for example, as described in the Nikkan Kogyo Shimbun published on July 24, 1999. However, it is necessary to obtain the required jetting power to spread the purification effect more widely in a closed water area with no fluidity, and to freely adjust the size of the generated bubbles depending on the environment of use. is there. Conventionally, in order to satisfy these required characteristics, Japanese Patent Application Laid-Open Nos. Hei 5-6480, Hei 5-146976, Hei 8-230761 As can be seen, many closed water purification systems have been proposed.

In the past, various bubble-generating bathtubs have been proposed in which bubbles are generated in a bathtub so that a comfortable bathing with the bubbles can be performed.

Japanese Patent Application Laid-Open No. Hei 9-11734404 discloses a pressure detecting means for detecting a discharge pressure of a pump, a gas suction amount adjusting means for changing a suction amount of gas sucked from the gas suction port, There is disclosed an air bubble generating device comprising: a control means for drivingly controlling the gas suction amount adjusting means based on a detection result of the detecting means.

Japanese Patent Application Laid-Open No. H10-2955761 discloses an apparatus body including a pump section for discharging the absorbed hot water as a water flow, and an air intake for mixing air into the water flow into the apparatus body. An in-bath air bubble generator having an inlet portion, and a nozzle portion communicating with the pump portion and ejecting air bubbles out of the device main body together with a water flow from the pump portion; A box-shaped wing-shaped injector having a plurality of injection ports is detachably and rotatably attached to a nozzle portion, and the plurality of injection ports are arranged in parallel on a surface opposite to a surface facing the nozzle portion. A disclosed in-bath bubble generator is disclosed.

Further, Japanese Patent Application Laid-Open No. H11-1595924 discloses that when hot water in a bathtub is sucked in from a suction port by a circulation pump and jetted from a bubble nozzle, the hot water is injected from the bubble nozzle. In a bubble generating bathtub that entrains air supplied through an air pipe from the air suction section to the bubble nozzle to the bathwater, and sprays it into the bathtub as bubbled bathwater, an open / close valve is provided in the air pipe. There is disclosed a bubble generating bath tub having a control device for controlling the opening / closing valve to be opened when the bath water is being injected from the bubble nozzle and closed when the injection of the bath water is stopped.

Furthermore, if oxygen is contained in the water, the inner wall of the boiler can is oxidized and the mackerel comes out and corrodes. To prevent this, in the past, Ca was put in water and attached to the inner wall of the boiler can to form a protective film.However, if Ca is attached too much, the Ca film is a heat insulating material, Thermal efficiency is reduced. Therefore, it was necessary to periodically remove the Ca film.

Techniques for degassing such dissolved gases, such as oxygen, from liquids include (1) a method in which the gas in the liquid is separated by applying a vacuum, and (2) a method in which the temperature of the liquid is raised and the gas is boiled. There was a way to separate.

However, the vacuum method requires equipment such as a large compressor and a pressure vessel, and has the problem of large equipment and cost.The boiling method cannot raise the temperature depending on the liquid. Was.

Conventionally, a carburetor system, a mechanical fuel injection system, and an electronically controlled fuel injection system have been known as fuel injection devices. In recent years, the electronically controlled fuel injection system, which is generally used, is equipped with a fuel injection valve in the intake manifold, and adjusts the intake air amount and throttle opening so that the optimum air-fuel ratio is adjusted to the operating conditions. And the like, and the fuel injection amount is finely controlled according to the operating state. However, with these conventional devices, it is extremely difficult to generate microbubbles of about 10 m, and a large capacity (5 kg required the pump cm about ^2).

In addition, since the pressurized dissolution method is mainly used to generate microbubbles, large-diameter bubbles of 100 m or more cannot be generated in an apparatus that focuses on the generation of microbubbles. That is, the bubble size cannot be selected.

Furthermore, the above conventional fuel injection devices have complicated structures and are not satisfactory in performance. As a result of a study by the applicant, it has been found that in the prior art, in a mixed state of the fuel injected from the fuel injection valve and the supplied air, the fuel is not sufficiently refined and uniformized with the air. If the mixture is not sufficiently refined and homogenized, not only will fuel efficiency and emission performance not be improved, but also output power performance will be limited. Normally, the fuel injection valve is provided near the intake valve of the intake manifold, so the fuel injected from the fuel injection valve is conveyed to the downstream while being mixed with the intake air sent from the upstream. Will be introduced. At this time, since the intake air is laminar, there is a limit to the good mixing of the two.

The first problem to be solved by the present invention is that the structure is simple, the applicability is high, and at the same time, it generates bubbles of various sizes as the microbubble generator, and at the same time, it has a wide range of purification effects. An object of the present invention is to provide a microbubble generating nozzle which satisfies a required characteristic of obtaining a jet output for generating a liquid movement required for diffusion.

A second object is to provide a microbubble generating nozzle, a bubble crushing nozzle, and a bubble bath device that can generate microbubbles using a small pump and can select a bubble size.

A third object is to provide a deaerator that can efficiently deaerate at room temperature and pressure without equipment such as a compressor and a pressure vessel.

A fourth object is to provide an air-fuel mixture production nozzle capable of obtaining a uniform air-fuel mixture with a simple structure. Disclosure of the invention In order to solve the first problem, a microbubble generating nozzle of the present invention has an introduction portion for pressurized liquid and gas and a cylindrical bubble generation space. Forming a pressurized liquid introduction hole and a gas introduction hole to be opened, opening the pressurized liquid introduction hole to an end face of the introduction section, opening the gas introduction hole to a side surface of the introduction section, An adjustment valve for adjusting the amount of introduced gas is provided in the gas introduction pipe communicating with the gas.

The pressurized liquid introduced into the bubble generation space from the opening of the pressurized liquid introduction hole is discharged into the space under high pressure to generate a peeling area. Due to this peeling phenomenon, the gas introduced from the gas inlet is dispersed in the discharged water stream as microbubbles (fine bubbles). The amount and size of the microbubbles can be arbitrarily adjusted by adjusting the degree of opening of the gas introduction amount adjusting valve.

Further, by providing a gas introduction hole having an opening in the bubble generation space in the introduction portion, the dispersed state and size of the discharged bubbles can be reduced.

Furthermore, by providing the flow velocity reduction suppressing hole in the bubble generating space forming cylinder, it is possible to suppress energy loss occurring in the peeling area and mix fine bubbles into the liquid in the connected piping on the discharge side.

Further, by providing a reduced diameter portion or a portion filled with an activator, etc. below the bubble generating space forming cylinder, the present invention can be applied to the use of discharging microbubbles into the atmosphere.

Further, by mounting the micro-bubble generating nozzle on the pressurized liquid-side connection pipe in a detachable manner, it is possible to easily select a nozzle to be used in a liquid and a usage environment.

By arranging these microbubble generating nozzles or nozzle-loaded containers concentrically inside a large-diameter cylinder, the flow of water in a closed water area or the like can be promoted. In addition, by preparing a multi-nozzle loading tool provided between the pressurized liquid side connection pipe and the bubble generation side connection pipe and having a loading portion capable of loading a plurality of micro bubble generation nozzles, a large nozzle is provided. It is possible to generate a large number of microbubbles without manufacturing a microbubble. At this time, gas introduction to the multiple nozzles can be achieved by preparing a gas introduction pipe collecting chamber provided with a connection part that collects and connects the gas introduction pipes of multiple microbubble generation nozzles to one space. Can be combined into one.

The nozzle of the present invention is provided with a container filled with an activator at a position below the bubble generation space, and makes the ejected liquid mixed with the microbubbles contact and pass, thereby discharging the ejected liquid activated by the activator. Obtainable.

According to the nozzle structure of the present invention, a large amount of microbubbles can be supplied over a wide area of a closed water area with a simple structure.

In addition, the field of application is applicable to any of oxygen supply to water bodies, removal of chlorine, washing, etc., and there is no limitation.

By making the shape of the pressurized liquid introduction hole elliptical, it is possible to secure the water passage area and at the same time to make the area of the discharge surface of the bubble generation space smaller, thereby increasing the efficiency of generating fine bubbles.

By providing a straight or helical groove with a piercing or contracting flow communicating with the pressurized liquid introduction hole on the inner surface of the bubble generating space forming cylinder, the area and volume of the discharge surface of the bubble generating space can be reduced. As a result, the generation efficiency of the microbubbles is increased, the rectification effect and the generation efficiency due to the swirling flow are improved (energy loss is suppressed), and the expansion range of the microbubbles is improved with the improvement of the injection power.

By installing a window in the bubble generation space forming cylinder to check the generation state of fine bubbles, when installing a nozzle in the middle of the pipe, the air volume and the bubble generation state without directly checking the bubble generation state at the tip Can be easily adjusted at hand.

A plurality of liquids are provided at the downstream position of the bubble generation space forming cylinder by providing one or more kinds of gases or liquids that are automatically sucked, mixed with the pressurized liquid and discharged. Alternatively, it is possible to mix the gas uniformly, and it is possible to supply food to a distant place at a farm or the like.

In addition to the generation of microbubbles, a plurality of types of gas-liquid can be introduced into the introduction section and discharged into the gas-liquid mixing space, whereby the introduced substances can be efficiently mixed.

Further, a gas chamber is formed at an opening of the gas introduction hole on the side of the bubble generation space. By attaching a porous plug to the gas chamber, the generation efficiency of microbubbles can be increased.

The pressurized liquid introduced into the bubble generation space from the opening of the pressurized liquid introduction hole is discharged into the bubble generation space under a predetermined pressure, and generates a reduced pressure region in the bubble generation space. Due to this depressurization phenomenon, the gas introduced into the bubble generation space from the gas introduction hole through the pores of the porous plug mounted in the gas chamber is dispersed as microbubbles (fine bubbles) in the discharged water flow. The amount and size of the microbubbles can be arbitrarily adjusted by adjusting the diameter of the pores of the porous plug and the degree of opening of the gas introduction amount adjusting valve.

In addition, by providing a gas bypass hole in the gas introduction hole that bypasses the gas chamber and directly communicates with the bubble generation space, when the pressure of the pressurized liquid is low, the gas introduction hole is formed due to the pressure loss of the porous plug. The gas is prevented from being more difficult to be introduced into the bubble generating space, and the gas is introduced into the gas generating space from the gas bypass hole to disperse the microbubbles in the discharged water flow.

Further, by making the shape of the pressurized liquid introduction hole elliptical, it is possible to secure a water passage area, and at the same time, it is possible to further reduce the area of the discharge surface of the bubble generation space, thereby increasing the efficiency of generating fine bubbles.

The opening rate of the flow rate reduction suppression hole and the space length from the discharge surface of the bubble generation space forming cylinder to the flow rate control cylinder discharge surface can be adjusted on the outer circumference of the bubble generation space forming cylinder connected to the introduction part. By installing a flow rate adjusting cylinder, the flow rate can be easily adjusted when used in a bubble bath or the like.

By attaching a micro-bubble curtain generation nozzle having a flat divergent discharge section with a flow rate reduction suppression hole formed at the base at the downstream position of the bubble generation space forming cylinder joined to the introduction section, the bubbles are planarized. Can be spouted. The control valve is composed of a gas introduction pipe connection part and an air adjustment cock, and the ventilation hole of the gas introduction pipe connection part has a circular cross section, and the ventilation hole of the air adjustment cock has an elliptical cross section. Fine adjustment of the bubble generating area can be easily performed. By attaching an air filter to the air inlet of the gas inlet tube, it is possible to prevent the porous plug from being clogged by dust in the introduced air, which is likely to occur when a porous plug is used in the gas inlet hole.

In order to solve the second problem, the bubble bath device of the present invention is provided with a pump that sucks water in a bathtub and discharges water into the bathtub again, and is provided in a discharge-side channel of the pump. A micro-bubble generating nozzle for mixing the air in the atmosphere with the water pumped by the pump to discharge the micro-bubbles into the bathtub is provided. Another bubble bath apparatus of the present invention includes a pump for sucking water in a bathtub and discharging water into the bathtub again, and a microbubble provided on the suction side of the pump for mixing atmospheric air into the suction water. A generating nozzle, and a bubble crushing nozzle provided in a discharge side water channel of the pump for miniaturizing bubbles in air mixed with air in the air and bubble mixed water pumped by the pump and discharging microbubbles into the bathtub. It is characterized by. In order to solve the third problem, a degassing device of the present invention comprises: a first introduction part having a pressurized gas-liquid introduction hole for introducing a liquid containing gas; and a discharge side of the pressurized gas-liquid introduction hole. A gas-liquid separation nozzle having a gas-liquid separation space having a larger cross-sectional area than the total area of the pressurized gas-liquid introduction holes,

A separation gas-liquid introduction hole for introducing a separation gas-liquid discharged from the discharge side of the gas-liquid separation nozzle near the bottom of the swirling flow generating cylinder having a dome-shaped bottom and having a bias with respect to a center axis; A gas aggregating section including a gas aggregating cylinder provided coaxially with a center axis through the bottom of the swirling flow generating cylinder;

A gas-liquid riser pipe provided at the top of the swirling flow generating cylinder of the gas aggregation part, a gas recovery part inserted through the bottom of the gas-liquid riser, and a gas recovery part; A second introduction portion connected to the lower end via a valve and having a pressurized liquid introduction hole for introducing a pressurized liquid to be discharged, and a pressurized liquid introduction hole at a discharge side of the pressurized liquid introduction hole. One end opens to the return liquid suction pressure generation space having a cross-sectional area larger than the total area, and the return liquid suction pressure generation space of the second introduction part, and another is provided on the side of the second introduction part. A gas collecting section pressure reducing nozzle having a return liquid introduction hole having an open end, A gas recovery unit pressure adjusting pipe is provided for connecting the bottom of the gas recovery unit and the return liquid introduction hole of the gas recovery unit pressure reducing nozzle.

A plurality of pressurized gas-liquid introduction holes are formed in a pressurized gas-liquid introduction portion of the gas-liquid separation nozzle, and a discharge side opening of the plurality of pressurized gas-liquid introduction holes is formed on a discharge side of the introduction portion. This is characterized by communicating with the gas-liquid separation space.

In addition, a stepped portion whose diameter increases discontinuously as the pressurized gas-liquid introduction hole of the gas-liquid separation nozzle goes downstream is provided.

In this deaerator, by forming a biased tap on the inner wall of the gas-liquid separation tube of the gas-liquid separation nozzle, cavitation also occurs on the wall surface of the gas-liquid separation tube. This cavitation phenomenon becomes more remarkable when the position of the triangular peak of the tap cross section is formed so as to be shifted downstream in the flow direction of the pressurized gas-liquid.

In order to solve the fourth problem, an air-fuel mixture injection nozzle according to the present invention is provided with a cylindrical connection having a pressurized gas connection portion connected to a pressurization source and a nozzle connection connected to an intake portion of an internal combustion engine. And a fuel connection part on a side surface, a cylinder having a mixture production space in the cylinder, and a pressurized gas introduction hole penetrating through the pressurized gas connection part and the fuel in this space. A fuel introduction hole penetrating through the connection portion and an air-fuel mixture discharge hole penetrating through the nozzle connection portion are opened, and at least a diameter of the mixture-production space near the fuel connection portion is a diameter of the pressurized gas introduction hole. It is characterized by being set larger.

In this air-fuel mixture production nozzle, a reduced diameter portion is provided below the air-fuel mixture production space.

An annular concave portion is formed between the fuel introduction section and the pressurized gas introduction hole.

Further, the opening of the pressurized gas introduction hole is formed on an inner wall of the mixed gas production space, and is connected to guide means extending downstream in the flow direction of the mixed gas.

Further, a step portion is provided in which the diameter increases discontinuously as the gas mixture exhaust hole goes to the injection hole. A tap is formed on the inner wall of the air-fuel mixture discharge hole, the tap having a peak deviating toward the injection hole.

The pressurized gas introduced into the air-fuel mixture production space from the opening of the pressurized gas introduction hole is discharged into the space under high pressure to generate a peeling area. Fluid energy that accelerates the mixing of the fuel and air is generated in the separation area, and the mixed gas produced by the separation phenomenon is in a state in which the fuel and air are uniformly mixed. The nozzle of the present invention can be used by pressurizing the fuel introduced into the fuel introduction pipe connected to the fuel connection portion, but can supply the fuel without pressurization by the self-priming action of the nozzle itself. .

Further, the use of the nozzle of the present invention eliminates the necessity of the conventionally used devices such as the intake side piping and start valve of the intake manifold and the intake valve.

According to the nozzle of the present invention, it is possible to produce a uniform mixed gas with a simple structure.Also, in the structure on the intake side, the shape of the intake port is changed to a mixed gas injection sub-chamber, or the intake valve is changed. By abolishing it, the nozzle of the present invention allows the air-fuel mixture to be directly injected into the cylinder. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 shows a first embodiment of a micro-bubble generating nozzle according to the present invention.

FIG. 2 shows a second embodiment of the microbubble generating nozzle of the present invention.

FIG. 3 shows a third embodiment of the microbubble generating nozzle of the present invention.

FIG. 4 shows a fourth embodiment of the microbubble generating nozzle of the present invention.

FIG. 5 shows a fifth embodiment of the microbubble generating nozzle of the present invention.

FIG. 6 shows a sixth embodiment of the microbubble generating nozzle of the present invention.

FIG. 7 shows a seventh embodiment of the microbubble generating nozzle of the present invention.

FIG. 8 shows an eighth embodiment of the microbubble generating nozzle of the present invention.

FIG. 9 shows a ninth embodiment of the microbubble generating nozzle of the present invention.

FIG. 10 shows a _tenth embodiment of the microbubble generating nozzle of the present invention. FIG. 11 shows a first embodiment of a microbubble generating nozzle according to the present invention. FIG. 12 shows a microbubble generating nozzle according to a 12th embodiment of the present invention. FIG. 13 shows a thirteenth embodiment of the microbubble generating nozzle of the present invention. FIG. 14 shows a 14th embodiment of the microbubble generating nozzle of the present invention. FIG. 15 shows a fifteenth embodiment of the microbubble generating nozzle of the present invention. FIG. 16 shows a sixteenth embodiment of the microbubble generating nozzle of the present invention. FIG. 17 shows an embodiment of the gas-liquid mixing nozzle of the present invention.

FIG. 18 is a view showing the structure of a bubble crushing / bubble mixing nozzle used in the present invention.

FIG. 19 is a view showing the structure of the bubble crushing nozzle used in the present invention.

FIG. 20 shows an embodiment of the loading container according to the present invention.

FIG. 21 shows an embodiment of the loading container according to the present invention.

FIG. 22 shows an embodiment of the flow promoting cylinder according to the present invention.

FIG. 23 shows an embodiment of the flow velocity suppressing cylinder according to the present invention.

FIG. 24 shows a conveyed product introduction cylinder according to the present invention.

FIG. 25 shows a container filled with an activator or the like according to the present invention.

FIG. 26 shows the introduced article confirming cylinder according to the present invention.

FIG. 27 shows a flow rate adjusting cylinder according to the present invention.

FIG. 28 shows a micro bubble curtain generating nozzle according to the present invention.

FIG. 29 shows an air regulating valve according to the present invention.

FIG. 30 shows an air intake filter according to the present invention.

FIG. 31 is a front view and a longitudinal sectional view showing an embodiment of a bubble discharge direction changing elbow according to the present invention.

FIG. 32 is a front view, a longitudinal sectional view, and an AB sectional view showing an embodiment of a bubble dispersing nozzle for changing the bubble discharge direction according to the present invention.

FIG. 33 is a sectional view showing an embodiment of the multiple nozzle loading device of the present invention.

FIG. 34 is a sectional view taken along the line AA and a sectional view taken along the line BB of the embodiment of FIG.

FIG. 35 is a plan view showing the structure of the microbubble generating nozzle used in the embodiment of FIG. FIG. 3 is a front view, an A-A cross-sectional view, a bottom view, and a BB cross-sectional view.

FIG. 36 is a perspective view showing another example of the multiple nozzle loading device of the present invention.

FIG. 37 is a plan view, an AA sectional view, a bottom view, and a BB sectional view showing an embodiment of the gas inlet tube collecting chamber of the present invention.

FIG. 38 is a cross-sectional view showing a bathtub to which the bubble bath apparatus according to the first embodiment of the present invention is attached.

FIG. 39 is a sectional view showing a bathtub to which a bubble bath apparatus according to a second embodiment of the present invention is attached.

FIG. 40 is a detailed view of the hose fitting.

FIG. 41 is a cross-sectional view showing details of a water intake section and a discharge section.

FIG. 42 is a sectional view showing a bathtub to which a bubble bath apparatus according to a third embodiment of the present invention is attached.

FIG. 43 is a sectional view showing a bathtub to which a bubble bath apparatus according to a fourth embodiment of the present invention is attached.

FIG. 44 is a sectional view showing a bathtub to which a bubble bath apparatus according to a fifth embodiment of the present invention is attached.

FIG. 45 is a sectional view showing a bathtub to which a bubble bath apparatus according to a sixth embodiment of the present invention is attached.

FIG. 46 is a diagram showing an embodiment of the deaerator of the present invention.

FIG. 47 is a diagram showing an embodiment of the gas-liquid separation nozzle of the present invention.

FIG. 48 is a cross-sectional view taken along the line AB of FIG. 46, illustrating an embodiment of the gas-liquid aggregation section of the present invention. FIG. 49 is a cross-sectional view taken along the line C-D of FIG. 46 showing an embodiment of the gas recovery unit of the present invention. FIG. 50 is a view showing an embodiment of the nozzle for reducing the pressure of the gas recovery section of the present invention. FIG. 51 shows a first embodiment of the air-fuel mixture production nozzle of the present invention.

FIG. 52 shows a second embodiment of the air-fuel mixture production nozzle of the present invention.

FIG. 53 shows a third embodiment of the air-fuel mixture production nozzle of the present invention.

FIG. 54 shows a first embodiment of an internal combustion engine to which the present invention is applied.

FIG. 55 is an enlarged view of the air-fuel mixture injection sub-chamber of the present invention. FIG. 56 shows a second embodiment of the internal combustion engine to which the present invention is applied.

FIG. 57 shows a connection portion of the air-fuel mixture production nozzle of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, an embodiment of the present invention will be described by using a city water supply having a water pressure of 1.S kg Z cm ² 3.0 kg Z cm ² as an introduction pressurized liquid and a nozzle for purifying a closed water area using air as an introduction gas. This will be described based on an example.

A. Micro bubble generation nozzle

Example 1

FIG. 1 shows the structure of the nozzle 1OA according to the first embodiment. (A) is a plan view showing the configuration of the introduction portion 1 as viewed from the pressurized liquid inflow side on the upper surface, (b) is a longitudinal sectional view, and (c) is a bottom view as viewed from the bubble discharge port side on the lower surface. is there.

As shown in FIG. 1 (b), the nozzle 1OA has an introduction portion 1 for pressurized liquid and gas, and a bubble generation space 2. The figure shows a structure in which the introduction section 1 and the bubble generating space forming cylinder 3 that forms the bubble generating space 2 are formed separately, and they are fitted together and integrated. Can also be formed.

A pressurized liquid introduction hole 4 is formed in the introduction section 1 and opens in the upper surface thereof, and opens into a bubble generation space 2 formed below the introduction section 1. The pressurized liquid introduction hole 4 has the shape of a truncated cone with the top surface of the introduction section 1 as the bottom surface. The size and number of the diameters vary depending on the use of this nozzle and the type of pressurized liquid. As shown in (a), several (in this case, six) bubbles whose opening cross-sectional area is 10 to 40% with respect to the end face are symmetrical at the end face. So that it penetrates through the introduction portion 1 and opens into the bubble generation space 2. Reference numeral 5 denotes a gas introduction hole. This gas introduction hole 5 is formed by a gas introduction pipe 6 inserted from the side opening into the gas introduction hole 5 of the introduction section 1, and is radiated to the bubble generation space 2 or one at the center (radially in this case) In addition to the opening, a gas introduction amount adjusting valve 7 is mounted outside the side opening. In addition, the flow velocity reduction suppressing hole 8 opens to the bubble generation space 2 side as shown in FIG. The number and diameter of the flow velocity reduction suppression holes 8 The pressure and the amount of the pressurized liquid introduced through 15 are adjusted according to the number of the pressurized liquid introduction holes 4 and the opening position in the bubble generation space 2.

Example 2

FIG. 2 shows the structure of the nozzle 10B according to the second embodiment. The figure shows the shape of the bubble generation space forming cylinder 3, the fact that the flow velocity reduction suppression hole 8 is not opened in the bubble generation space formation cylinder 3, and the bubble generation space 2 side of the bubble generation space formation cylinder 3. This is the same as the embodiment of FIG. 1 except that a reduced diameter portion 9 is formed on the inner side toward the discharge surface side.

In the case of the nozzle 10 B of this embodiment, in comparison with the case of the first embodiment, the nozzle 10 B is suitable for use in an application in which the liquid mixed with fine bubbles is discharged into the air, for example, for attachment to a faucet or the like. I have. In this case, the reduced diameter portion 9 provided below the bubble generation space 2 enables use in applications in which microbubbles are discharged into the atmosphere.

Example 3

FIG. 3 shows the structure of the nozzle 10C according to the third embodiment. (A) shows the configuration of the introduction part 1 as viewed from the pressurized liquid inflow side on the upper surface, (b) shows a vertical cross section, (c) shows a view from the bubble discharge port side on the lower surface, and (d) shows It is an enlarged view of (c).

As shown in FIG. 2B, the nozzle 10 C has an inlet 1 for pressurized liquid and gas, and a bubble generating space 23. The figure shows a structure in which the introduction part 1 and the bubble generation space forming cylinder 3 that forms the bubble generation space 2 are formed separately, and they are fitted together and integrated. It can also be formed.

A pressurized liquid introduction hole 4 is formed in the introduction section 1 and opens in the upper surface thereof, and opens into a bubble generation space 2 formed below the introduction section 1. The pressurized liquid introduction hole 4 has the shape of a circle, an ellipse, or a truncated cone or a truncated cone having the top surface of the introduction portion 1 as a bottom surface. Although different depending on the type, as shown in Figure (a), several (three in this case) end faces with an opening cross-sectional area of 10 to 40% of the bubble generation space 2 with respect to the end face To open each point so that they are in point symmetry, penetrate through the introduction section 1 and open to the bubble generation space 2 are doing. In addition, the periphery 4a of the inflow side opening of the pressurized liquid introduction hole 4 is rounded in order to make the flow of the inflowing liquid smooth. Reference numeral 5 denotes a gas introduction hole. The gas introduction hole 5 is formed by a gas introduction pipe 6 inserted from the side opening into the gas introduction hole 5 of the introduction section 1, and is radially or one (in this case, radially) opened in the bubble generation space 2. At the same time, a gas introduction amount adjusting valve 7 is mounted outside the opening on the side surface. In addition, 11 is a gas inlet hole for closing the hole that is opened in manufacturing when the gas inlet hole 5 is formed radially, 15 is a connecting pipe for connecting the inlet 1 to the fluid flow path, and 1 2 Is an arc-shaped pressurized liquid guide groove formed on the inner surface of the bubble generating space forming cylinder 3 and communicated with the pressurized liquid introduction hole 4, and 13 is formed at an end of the bubble generating space forming cylinder 3 The joining projections 14 are joining stoppers for joining the introduction section 1 and the bubble generating space forming cylindrical body 3.

Example 4

FIG. 4 shows the structure of the nozzle 10D according to the fourth embodiment. The figure shows the embodiment of FIG. 3 in which the shape of the pressurized liquid introduction hole 4 is elliptical. By making it elliptical, it is possible to secure a water passage area and at the same time to make the area of the discharge surface of the bubble generation space 2 smaller, thereby increasing the generation efficiency of fine bubbles.

The nozzle 10D of this embodiment is suitable for use in applications requiring more microbubbles, for example, for on-land aquaculture, as compared with the case of Embodiment 1.

Example 5

FIG. 5 shows the structure of the nozzle 10E according to the fifth embodiment. This figure shows a configuration in which the pressurized liquid guide groove 12 on the side of the bubble generating space forming cylinder 3 communicating with the pressurized liquid introduction hole 4 has a contraction portion 16 in the embodiment of FIG. Things. By doing so, the volume of the bubble generation space 2 and the area of the discharge surface become smaller, and the generation efficiency of fine bubbles increases. In addition, the diffusion range of fine bubbles can be expanded with the improvement of the injection power.

In the case of the nozzle 10E of this embodiment, it is used in an application in which more fine bubbles are ejected farther than in the case of the embodiment 1, for example, in a sea area. Suitable for aquaculture, etc.

Example 6

FIG. 6 shows the structure of the nozzle 10F according to the sixth embodiment. In the embodiment of FIG. 3, the pressurized liquid guiding groove 12 on the side of the bubble generating space forming cylinder 3 communicating with the pressurized liquid introducing hole 4 in the embodiment of FIG. 3 has a spiral shape with a contraction. . By doing so, a swirl flow is generated in the bubble generation space 2, which increases the efficiency of generation of fine bubbles, and can expand the range of fine bubble diffusion as the injection power increases, and also generates air bubbles due to the rectification effect It can be expected to improve efficiency and suppress energy loss.

In the case of the nozzle 10F of this embodiment, the use in an application in which more fine bubbles are ejected farther than in the case of the embodiment 3, for example, oxygen in water in a dam lake is used. Suitable for supply.

Example 7

FIG. 7 shows the structure of the nozzle 10G according to the seventh embodiment. (A) shows the configuration of the introduction part 1 as viewed from the pressurized liquid inflow side on the upper surface, (b) shows a vertical cross section, (c) shows a view from the bubble discharge port side on the lower surface, and (d) shows It is an enlarged view of (c).

As shown in FIG. 1 (b), the nozzle 10G has an introduction portion 1 for pressurized liquid and gas, and a bubble generation space 2. The figure shows a structure in which the introduction section 1 and the bubble generating space forming cylinder 3 that forms the bubble generating space 2 are formed separately, and they are fitted together and integrated. Can also be formed.

A pressurized liquid introduction hole 4 is formed in the introduction section 1 and opens in the upper surface thereof, and opens into a bubble generation space 2 formed below the introduction section 1. The pressurized liquid introduction hole 4 has the shape of a circle, an ellipse, or a truncated cone or a truncated cone having the top surface of the introduction portion 1 as a bottom surface. Although different depending on the type, as shown in Figure (a), several (three in this case) end faces with an opening cross-sectional area of 10 to 40% of the bubble generation space 2 with respect to the end face Then, each is opened so as to be in a point symmetrical position, penetrates through the introduction portion 1, and opens into the bubble generation space 2. In addition, the periphery 4a of the inflow side opening of the pressurized liquid introduction hole 4 is rounded in order to make the flow of the inflowing liquid smooth. Reference numeral 5 denotes a gas introduction hole. The gas introduction hole 5 is formed by a gas introduction pipe 6 inserted from the side opening into the gas introduction hole 5 of the introduction section 1, and is provided radially or centrally in the bubble generation space 2 (in this case, one at the center). The gas introduction amount adjustment valve 7 is attached outside the side opening. In the present invention, a gas chamber 17 is formed at an opening on the second side of the bubble generation space of the gas introduction hole 5, and a porous plug 18 is attached to the gas chamber 17. The porous plug 18 is made of a porous material or a porous material having micropores communicating with each other, such as a foamed aluminum / porous ceramic. The diameter of the fine pores is preferably about 100 to 100 m, which is suitable for generating microbubbles.

In addition, 1 1 is a gas inlet hole 5 for closing the hole required for cleaning the inside of the gas inlet hole 5, 15 is a connecting pipe for connecting the inlet 1 to the fluid flow path, and 1 2 is a bubble. An arc-shaped pressurized liquid guide groove formed on the inner surface of the generation space forming cylinder 3 and communicating with the pressurized liquid introduction hole 4. 13 is a joint formed at the end of the bubble generation space formation cylinder 3. The projecting projection 14 is a joining stopper for joining the introduction section 1 and the bubble generating space forming cylindrical body 3.

Example 8

FIG. 8 shows the structure of the nozzle 10H according to the eighth embodiment. In the figure, the shape of the pressurized liquid introduction hole 4 in the embodiment of FIG. 7 is made elliptical. By making it elliptical, it is possible to secure a water passage area and at the same time to make the area of the discharge surface of the bubble generation space 2 smaller, thereby increasing the generation efficiency of fine bubbles.

The nozzle 10H of this embodiment is suitable for use in applications that require more microbubbles, for example, for on-land aquaculture, as compared to the case of Embodiment 7.

Example 9

FIG. 9 shows the structure of the nozzle 10J according to the ninth embodiment. This embodiment is different from the embodiment shown in FIG. 7 in that a gas bypass hole 5a is provided which bypasses the gas chamber 17 and directly communicates with the bubble generation space 2. This is because when the pressure of the pressurized liquid is low, it is difficult for gas to be introduced into the bubble generation space 2 from the gas introduction hole 5 due to the pressure loss of the porous plug 18. By doing so, the generation of microbubbles is also significantly reduced. Therefore, by introducing gas from the gas bypass hole 5a into the bubble generation space 2, the microbubbles are dispersed in the discharged water flow.

Example 10

FIG. 10 shows the structure of the nozzle 10 K according to the tenth embodiment. In this figure, the gas bypass hole 5a in FIG. 9 is applied to the structure of the embodiment shown in FIG. Other configurations and operations are the same as those in the ninth embodiment.

Example 1 1

FIG. 11 shows the structure of the microbubble generating nozzle 10L. (A) shows the configuration of the inlet section 1 as viewed from the pressurized liquid inflow side on the upper surface, (b) shows a vertical cross section, (c) shows a view from the lower bubble discharge port side, (d) () Is an enlarged view of (c), and (e) is an enlarged sectional view of the inside of the cylinder for forming the bubble generation space.

As shown in FIG. 1B, the nozzle 10 L has an introduction portion 1 for pressurized liquid and gas, and a bubble generation space 2. The figure shows a structure in which the introduction section 1 and the bubble generating space forming cylinder 3 that forms the bubble generating space 2 are formed separately, and they are fitted together and integrated. Can also be formed.

A pressurized liquid introduction hole 4 is formed in the introduction section 1 and opens in the upper surface thereof, and opens into a bubble generation space 2 formed below the introduction section 1. The pressurized liquid introduction hole 4 has the shape of a circle, an ellipse, or a truncated cone or an elliptical truncated cone with the top surface of the introduction portion 1 as a bottom surface. As shown in Fig. 3 (a), the number of bubbles (three in this case) is such that the opening cross-sectional area of the bubble generation space 2 is 10 to 40% with respect to the end face. Each of the openings opens so as to be a point symmetrical position, penetrates through the introduction portion 1, and opens into the bubble generation space 2. The periphery 4a of the inflow side opening of the pressurized liquid introduction hole 4 is rounded in order to make the flow of the inflowing liquid smooth. Reference numeral 5 denotes a gas introduction hole.

The gas introduction hole 5 is formed by a gas introduction pipe 6 inserted from the side opening into the gas introduction hole 5 of the introduction section 1, and is provided radially or centrally in the bubble generation space 2 (in this case, one at the center). (4 in total, 3 radially open), and a gas introduction adjustment valve 7 is attached outside the side opening. Reference numeral 1 denotes a gas introduction hole 5, a gas introduction hole for closing a hole required for cleaning the inside of the gas introduction hole, and 12 denotes a pressurized liquid introduction hole formed on the inner surface of the cylinder 3 for forming a bubble generation space. An arc-shaped pressurized liquid guiding groove communicating with 4, 13 is a bonding projection formed at the end of the bubble generating space forming cylinder 3, 14 is an inlet 1 and a bubble generating space forming A joining stopper for joining the cylindrical body 3, 15 is a connection pipe for connecting the introduction section 1 to the fluid flow path, and 19 is a downstream connection pipe connected to the introduction section 1.

The inner wall of the bubble generation space forming cylinder 3 on the bubble discharge side of the pressurized liquid introduction hole 4 may be straight-worked, but as shown in FIG. By forming the deviating taps, the miniaturization of bubbles can be promoted.

Example 1 2

FIG. 12 shows the structure of the microbubble generating nozzle 10M. In the figure, in the embodiment of FIG. 11, the shape of the pressurized liquid introduction hole 4 is made elliptical. By making the shape elliptical, it is possible to secure a water flow area and at the same time to make the area of the discharge surface of the bubble generation space 2 smaller, thereby increasing the efficiency of generating microbubbles. Example 13

FIG. 13 shows the structure of the microbubble generating nozzle 1 ON. In this embodiment, gas introduction holes 5 are formed in three places around one introduction part 1, and three pressurized liquid introduction holes 4 are formed around the three gas introduction holes, respectively. It has a structure in which the pressurized liquid introduction side of the hole 5 is closed with Mekurabis 11. The pressurized liquid guide groove 12 is formed in the bubble generating space forming cylinder 3 on the discharge side of each pressurized liquid introduction hole 4 so that a common space is formed.

Also in this embodiment, the inner wall of the bubble generation space forming cylinder 3 on the bubble discharge side of the pressurized liquid introduction hole 4 may be formed by straight processing, but as shown in FIG. In addition, by forming a tap whose mountain is deviated downstream, the miniaturization of bubbles can be promoted.

In the nozzle having the above-described structure, the pressurized liquid introduced into the bubble generation space 2 from the opening of the pressurized liquid introduction hole 4 is discharged into the space under high pressure to form a peeling area. Due to this peeling phenomenon, the gas introduced from the gas introduction hole 5 is dispersed in the discharged water stream as microbubbles having a diameter of about 10 m. The dispersion amount and size of the microbubbles can be arbitrarily adjusted by adjusting the degree of opening of the gas introduction amount adjustment valve 7.

Example 14: L 6

FIGS. 14 to 16 show a gas chamber 17 formed at the opening of the gas introduction hole 5 in the nozzle shown in FIGS. 11 to 13 on the side of the bubble generation space 2, and a porous plug in the gas chamber 17. 18 is attached. The porous plug 18 is made of a porous material or a porous material having fine pores, such as foamed aluminum and porous ceramics. The diameter of the pores is preferably about 10 to 100 m, which is suitable for generating microbubbles.

In this way, the gas chamber 17 is formed at the opening of the gas introduction hole 5 on the side of the bubble generation space 2, and the porous plug 18 is attached to the gas chamber 17. Microbubbles can be generated even if a pressurized liquid is introduced.

B. Other nozzles

Example 1 (gas-liquid mixing nozzle)

FIG. 17 shows the structure of the gas-liquid mixing nozzle 20 according to the first embodiment. (A) is a plan view showing the configuration of the introduction part 21 as viewed from the pressurized gas-liquid inflow side on the upper surface, (b) is a longitudinal sectional view, (c) is a view as viewed from the bubble discharge port side on the lower surface, (D) is an enlarged view of (c).

As shown in FIG. 2B, the nozzle 20 has an inlet 21 for pressurized liquid and gas, and a cylindrical inlet mixing space 22. A pressurized gas-liquid introduction hole 23 and a plurality of gas-liquid introduction holes 24 formed in the space 22 are formed, and the pressurized gas-liquid introduction hole 23 is opened at an end face of the introduction portion 21 to form a plurality of gas-liquid introduction holes. Adjustment valves 2 7, 2 that open 24 to the side of the inlet 21 and adjust the gas-liquid introduction amount to the gas-liquid introduction pipes 25, 26 that communicate with the gas-liquid introduction holes 24 8 are provided. Figure In the above, there is shown a structure in which an introduction part mixing space forming cylindrical body 29 in which an introduction part 21 and an introduction substance mixing space 22 are formed is formed separately, and each is fitted and integrated. It can be formed integrally from the beginning.

The above-mentioned pressurized gas-liquid introduction hole 23 has a shape of a circle, an ellipse, or a truncated cone or a truncated elliptical cone with the top surface of the introduction portion 1 as a bottom surface. Although it depends on the type of pressurized gas and liquid, as shown in Figure (a), a plurality of pipes whose opening cross-sectional area of the inlet mixture space 22 is 10 to 40% with respect to the end face (in this case, 3) are opened at the end faces so that they are point-symmetrical to each other, penetrate through the introduction section 21, and open to the introduced substance mixing space 22. The gas-liquid introduction holes 23 are formed by gas-liquid introduction pipes 25 and 26 inserted into the introduction part 21 from the side opening, and a plurality of gas-liquid introduction holes 22 are radially opened in the introduction mixture space 22 and Gas-liquid introduction amount adjustment valves 27 and 28 are mounted outside the opening. In addition, 30 is a connection pipe for connecting the introduction section 21 to the fluid flow path, and 31 is connected to the pressurized gas-liquid introduction hole 23 formed on the inner surface of the cylinder 29 for forming the introduction mixture space. An arc-shaped pressurized liquid guiding groove, 32 is a joining projection formed at the end of the introduced material mixing space forming cylinder 29, and 33 is an introducing portion 21 and the introduced material mixing space forming cylinder. This is a joining stop for joining with 29. Example 2 (bubble crushing and bubble mixing nozzle)

FIG. 18 shows an embodiment of the bubble crushing / bubble mixing nozzle 40, in which a gas introduction hole 42 is formed at the center of the introduction section 41, and a plurality of pressurized liquid introduction holes 4 are formed around the hole. 3 and a gas introduction pipe 4 4 is provided on the side of the introduction section 4 1 to allow outside air to communicate with the gas introduction hole 4 2, and the pressurized liquid introduction hole 4 3 Blocked at 5. The inflow side peripheral surface 43 a of the pressurized liquid introduction hole 43 is rounded. The pressurized liquid introduction hole 43 and the gas introduction hole 42 of the introduction part 41 are discharged into the common bubble crushing space 47 on the bubble generation space 46 side. As shown in Fig. 18 (e), the bubble crushing tube 48 inside the pressurized liquid introduction hole 4 3 introduction section 4 1 has a plurality of discontinuous large diameters on the inner wall as it goes to the discharge side. With steps. In addition, taps are formed on the inner wall, with the mountain deviating downstream. Multiple holes are made into a single hole in the bubble crushing space 47 on the outlet side. In the figure, 49 is a connecting pipe, and 50 is a gas introduction amount adjusting valve. Example 3 (bubble crushing nozzle)

FIG. 19 shows an embodiment of the bubble crushing nozzle 60, in which the gas inlet for introducing outside air is not provided in the inlet section 61, and the bubble crushing tube 63 is passed through the pressurized liquid inlet 62 and the bubble crushing pipe 63. The pressurized liquid is directly discharged into the bubble crushing space 64, and the step in the bubble crushing tube 163 that has an intermittently large diameter is set up. With the combined cavitation action, bubbles of several hundred meters contained in the pressurized liquid are made finer to about 10 zm and ejected as microbubbles. This bubble crushing nozzle 60 also has a function as a gas-liquid separation nozzle that separates dissolved gas from liquid into mist when pressurized water of about 1 kg Z cm ² is passed. In the figure, 62 a is a rounded side surface on the inflow side of the pressurized liquid introduction hole 62, and 65 is a connecting pipe.

C. Ancillary equipment

Example 1 (loading container)

FIG. 20 shows the structure of the loading container 70 when the introduction portion 1 of the microbubble generating nozzle 10 according to the first embodiment is used alone.

This loading container 70 is a loading container used for the purpose of discharging into a liquid, and can be easily attached to and detached from the connection pipes 15 and 19 by using screws at both ends of the container. 1 can be freely attached and detached. In addition, by providing the rail 71 for preventing displacement, the rotation of the introduction portion 1 can be prevented. In the figure, 72 is the gas inlet tube insertion hole,

7 3 is a packing.

Example 2 (loading container)

FIG. 21 shows the loading container 8 when the introduction unit 1 according to the second embodiment is used alone.

The structure of 0 is shown.

In the case of this embodiment, in comparison with the case of the first embodiment, the loading container is used for the purpose of discharging into the air. The generation space 2 can be filled with an activator or the like. In the figure, reference numeral 75 denotes a net holding rubber for preventing scattering of activators and the like, and 76 denotes a net mounting cap. Example 3 (flow promotion cylinder)

FIG. 22 shows the structure of a flow promoting cylinder 90 according to the third embodiment when the introduction unit 1 is loaded in the loading container 70 of the first embodiment.

In the flow promoting cylinder 90, the flow of water is further promoted in a closed water area or the like by attaching the loading container 70 to the central portion of the large-diameter cylindrical body 91 with a fixing bracket 92. The upstream side of the flow promotion cylinder 90 is spread in a trumpet shape, so that the flow of fluid to the cylinder 91 is smooth.

Example 4 (flow control cylinder)

FIG. 23 shows a structure of a flow velocity suppressing cylinder 100 according to the fourth embodiment. In the present embodiment, a flow rate reduction suppression hole 101 is provided in a flow rate suppression cylinder 100 connected to a bubble generation space forming cylinder 3 joined to the discharge side of the introduction section 1, and a bubble generation space is provided. An arc-shaped flange 102 is provided at the joint with the forming cylinder 3 to prevent turbulence. The collar 102 is provided for preventing a turbulent flow, if necessary, because the collar is applied to a material having a remarkably high flow velocity according to the present invention. In addition, the flow rate reduction suppression hole 101 is provided for suppressing the flow rate decrease because the flow rate is decreased at the same time as the flow velocity by simply connecting a cylinder.

Example 5 (conveyance introduction tube)

FIG. 24 shows the structure of the transported article introduction cylinder 110 according to the fifth embodiment. The conveyed product introduction cylinder 110 is connected to the bubble generating space forming cylinder 3 and has one or more (in this case, three) conveyed material introduction holes 1 1 1 and a conveyed material introduction pipe 1 1 2 Are connected to connecting pipes 1 1 and 3. In this embodiment, the fine bubbles and the introduced material can be conveyed to the connection pipe terminal by being connected to the bubble generating space forming cylinder 3. Example 6 (Activated agent filled container)

FIG. 25 shows the structure of a container 80 filled with an activator or the like according to the sixth embodiment. This embodiment is for use in the air, and an activator or other scattering prevention net 74 is attached to the bubble generation space forming cylinder 3 side and the discharge section side via a packing 73 and a pressing rubber 75. Thereby, the activator and the like can be filled in the activator and the like filling space 77. In the figure, 72 is a gas inlet tube insertion hole, and 76 is a cap. In addition, the gap stop The introduction rail 1 can be prevented from rotating by providing the rail 71.

Example 7 (Introduction confirmation tube)

FIG. 26 shows the structure of the introduced matter checking cylinder 120 according to the seventh embodiment. In this embodiment, the introduction confirmation tube 120 is connected in the middle of the pipe of the connection tube 19 (downstream of the bubble generating space forming cylinder 3), and the confirmation window 1 2 1 of glass or transparent plastic is connected to the window. It is sealed with a material retainer 1 2 2. The confirmation windows 122 are preferably provided on both sides of the pipe.

If a nozzle is installed in the middle of the pipe, the air volume can be adjusted without checking the bubble generation state at the terminal. In addition, by providing windows 12 on both sides, the interior can be easily checked by illuminating from the opposite side and transmitting light.

Example 8 (flow rate adjusting cylinder)

FIG. 27 shows the structure of a flow rate adjusting cylinder 130 according to the eighth embodiment. In this embodiment, a flow rate adjusting cylinder mounting auxiliary tool 1 3 2 having a flow rate reduction suppressing hole 13 1 formed on the outer periphery of the discharge port side of the bubble generating space forming cylinder 3 joined to the discharge side of the introduction section 1 3 2 By mounting the flow rate control cylinder 13, the flow rate control cylinder 13 3 slides and the flow rate reduction hole 13 1 opening rate and the bubble generation space forming cylinder 3 The space length from the discharge surface to the flow rate control cylinder 13 30 discharge surface The flow rate can be easily adjusted when used in a bubble injection bath or the like. The figure shows a structure in which the air bubble generation space forming cylinder 3 and the flow rate adjusting cylinder mounting aid 1 32 are formed separately and fitted together to integrate them. Can also be formed.

Example 9 (Micro bubble curtain generating nozzle)

FIG. 28 shows the structure of the microbubble curtain generating nozzle 140 according to the ninth embodiment. The nozzle 140 has a width diverging from the circular nozzle mounting portion 141 for joining to the bubble generating space forming cylinder 3 toward the bubble discharge port 144 side, and a tapered height. And a bubble guide plate 144 is provided inside. In this embodiment, the bubbles can be ejected into the liquid in a planar manner by being connected to the bubble generating space forming cylinder 3.

Example 10 (Air adjustment valve) FIG. 29 shows the structure of the air adjusting valve 150 according to the tenth embodiment. The gas required for microbubble generation is very small. Therefore, in this embodiment, the ventilation hole 158 in the air adjustment cock 153 is formed into an elliptical shape so that the fine adjustment of the region where the microbubbles are generated can be easily performed. In the figure, 15 1 is the outer cylinder, 15 2 is the inner cylinder, 15 3 is the air adjustment cock, 15 4 is the fully open and fully closed stopper, 15 5 is the gas inlet connection, and 15 6 is the seal. A ring, 157 is a connection part of the inner cylinder part, 158 is a vent, and 159 is a contraction part for connecting the cross section of the vent.

Example 1 1 (Air intake fill evening)

FIG. 30 shows the structure of the air intake filter 160 according to the first embodiment. In particular, when a porous material is used for the gas introduction hole 5, there is a possibility of blockage due to introduced air. For this purpose, a perforated filter for preventing blockage of the porous material is connected to the gas inlet 5. In Fig. 30, 16 1 is a filter cylinder, 16 2 is a cap, 16 3 is a net stopper, 16 4 is a filter holding net, 16 5 is a filter receiving projection, 1 6 6 Is a filter, 167 is a connection part of the inner cylinder, and 168 is a vent.

Example 13 (Elbow for changing the direction of bubble discharge)

When the nozzle is used in parallel with the water surface, that is, in the horizontal direction with respect to the water surface, the following problems occur.

In particular, when a large-diameter nozzle is provided with a plurality of gas introduction holes in the bubble generation space, the depth from the water surface, that is, the water pressure in each gas introduction hole differs. For this reason, air bubbles are likely to come out from the gas inlet nearer to the water surface, and conversely, air bubbles are harder to come out from the deeper gas inlet. This makes it difficult to generate stable bubbles of the same diameter.

In this embodiment, as shown in FIG. 31, the nozzle introduction portion 1 is attached downward, that is, vertically attached to the water surface, and an elbow 170 is used to horizontally change the direction of bubbles. As a result, the depth (water pressure) from the water surface to each gas introduction hole becomes the same, and the discharge direction is changed to the horizontal direction by using an elbow 170. As a result, bubbles of stable and uniform size are generated, especially for large-diameter nozzles. Becomes possible.

Embodiment 14 (Bubble Dispersion Nozzle for Changing Bubble Discharge Direction)

By attaching the microbubble dispersion nozzle 180 shown in FIG. 32 for the same purpose as in the embodiment 13, a large amount of microbubbles can be dispersed in multiple directions and discharged. This microbubble dispersion nozzle has a hemispherical bubble dispersion convex portion 181 provided immediately below a vertically attached microbubble generating nozzle 10 and a bubble discharge port 182 provided in a horizontal direction.

Example 15 (multiple nozzle loading device)

FIGS. 33 and 34 show an embodiment of a multi-nozzle loader in which a plurality of micro-bubble generating nozzles are loaded to increase the amount of generated micro-bubbles as a whole.

More specifically, the multiple-nozzle loading device 190 is provided with holes for loading a plurality of, in this example, three, microbubble generating nozzles, and the microbubble generating nozzle as shown in FIG. 35 is provided. 10 is loaded. In the figure, 1 is an introduction part, la is a nozzle fixing flange, lb is a nozzle fixing projection, 2 is a bubble generation space, 3 is a bubble generation space forming cylinder, 4 is a pressurized liquid introduction hole, and 5 is a gas. Inlet, 6 is a gas inlet pipe, 7 is a gas inlet adjustment valve, 1 1 is a gas inlet hole mekravis, 1 2 is a pressurized liquid guide groove, 19 1 is a nozzle fixture, and 19 2 is a nozzle fixture. Recesses, 193 is a recess for fixing the nozzle, 194 is packing, and 195 is a gas introduction pipe.

According to this multi-nozzle loading device, since a plurality of nozzles can be freely attached and detached, the ejection power and the amount of bubbles can be controlled according to the pumping ability. Also, the pressure of each nozzle can be kept constant.

Example 16 (Multiple nozzle loading device)

FIG. 36 shows another embodiment of a multi-nozzle loading tool for loading a plurality of micro-bubble generating nozzles 10. The multi-nozzle loader 200 has a plurality of microbubble generating nozzles 10 mounted on a side of a straight pipe 201 into which a pressurized gas is introduced.

Example 17 (gas inlet tube collecting chamber) FIG. 37 shows an example of a gas introduction tube collecting chamber 210 that integrates gas introduction into a plurality of nozzles into one.

In the figure, 21 1 is the upper part of the outer cylinder of the collecting chamber, 212 is the lower part of the outer cylinder of the collecting chamber, 2 13 is the connection part of the gas introduction pipe, 214 is the vent, 215 is the convex part of the filter receiver, 216 is the filter, Is a gas introduction amount adjustment valve.

According to the present embodiment, when a plurality of nozzles are installed in one place, the connecting pipe for gas introduction can be integrated into one. In addition, the gas introduction amount of a plurality of nozzles can be adjusted at one place. Filters can be loaded inside if necessary. The main unit and the gas introduction amount adjustment valve can be separate. D. Application Examples

First example (bath)

FIG. 38 shows a first embodiment of the present invention, in which a bubble generator 330 is attached to a water inlet 310 and a discharge outlet 320 of a bathtub 300. Fig. 38 (a) is a sectional view of the bathtub mounting part, (b) is an enlarged sectional view of the water intake, (c) is an enlarged sectional view of the outlet, and (d) is an enlarged sectional view of the outlet attachment hose. .

In this embodiment, the bubble generating device 330 includes a circulation pump 301, a microbubble generating nozzle 10, and a bubble crushing / bubble mixing nozzle 40 (or a bubble crushing nozzle 60). In the present embodiment, the microbubble generating nozzle 10 has a diameter of the introduction portion 1 of 20 mm, a length of 40 mm, a diameter of the pressurized liquid introduction hole 4 of 7 mm × 3, a diameter of the gas introduction hole 5 of lmm, The outer diameter of the bubble generating space forming cylinder 3 is 20 mm, the length is 30 mm, and the inner diameter of the pressurized liquid guide groove 12 is expanded to 7.0 mm, 7.5 mm, 8.0 mm by two steps. The structure shown in Fig. 11 was used in which the bubble generation space 2 was expanded to 10.0 mm, 10.5 mm, and 11.0 mm by two steps. The diameter of the inlet 41 is 15 mm, the length is 30 mm, and the diameter of the pressurized liquid inlet 43 is 1.2 mm, 1.5 mm, and 1.8 mm. The structure shown in Fig. 18 was used in which nine gas inlet holes 42 had a diameter of lmm.

In the figure, 302 is a gas introduction pipe, 303a and 303b are gas introduction amount adjusting valves, and 15 is It is a connecting pipe. As shown in Fig. 38 (b), the intake port 3 110 is equipped with the intake port connector 3 1 1, the intake filter attaching / detaching device 3 1 2 and the intake filter 3 1 3, and the intake port connector 3 1 The connection pipe 15 is connected to 1. Also, as shown in Fig. 38 (c), the discharge port 3 20 is equipped with the discharge port fitting 3 2 1 and the discharge port attachment 3 2 2, and the discharge port 3 2 1 is connected to the connection pipe 1 5 Is connected. As shown in Fig. 38 (d), the discharge outlet attachment 3 2 2 has a discharge lower attachment hose 3 consisting of a discharge outlet attachment hose fitting 3 2 4, a hose 3 2 5 and a hose tip protector 3 2 6 23 can be attached, and micro-bubbles can be applied to any part of the human body to apply the massaging effect to the human body.

In this embodiment, when the apparatus is operated, first, microbubbles are mixed into the suction water from the microbubble generating nozzle 10 attached to the suction side. At this point, the amount of microbubbles is not necessarily large.

In the gas-liquid mixed with the microbubbles, the large-diameter bubbles are further finely broken by the blades in the pump 301. Normally, when air bubbles enter the pump 301, abnormal noise and noise are generated. However, since this device is mixed in a miniaturized state, this kind of sound is hardly generated. In addition, there is almost no decrease in pressure.

The gas-liquid mixed with air bubbles further crushed in the pump 301 is guided to the air bubble crushing / air mixing nozzle 40 attached to the discharge port. Due to the cavitation function of this nozzle, the air bubbles are further broken, and most of the air bubbles become microbubbles of about 10 m. In addition, the regulating valve 303 a attached to the nozzle 10 is adjusted and fixed to the state of generating micro-sized fine bubbles, and by adjusting the regulating valve 303 b, the bubbles of several mm from the micro-sized bubbles are adjusted. Up to the generation of air bubbles is possible.

In this embodiment, a gas introduction hole having a fixed flow rate may be used instead of the regulating valve 303a.

2nd embodiment> (Bath)

FIG. 39 shows a second embodiment of the present invention, in which an external bubble bath is attached to a bathtub 300. The device 340 is to be attached. This bubble bath apparatus 340 has a hose fitting 350 attached to the wall surface of a bathtub 300, and is connected to a pump 301 by connecting pipes 15, 19 (hose). In the figure, reference numeral 360 denotes a water intake unit, and reference numeral 370 denotes a discharge unit. As shown in Fig. 40, the hose mounting fixture 350 has three mounting position adjustment grooves on the hose mounting support plate 3 51 whose upper part is bent in a U-shape, and the mounting position fixing knob 3 5 3 And a generation nozzle fixture 354 are attached, and a scratch prevention rubber 355 is attached to the back side of the portion bent in a U-shape. A connecting member 356 provided with a hose through hole 357 is attached to the upper and lower mounting position fixing knobs 353 so that the sucker 358 sucks the inner wall of the bathtub. At the center, the nozzle fixing device 3 5 4 is fixed to the hose mounting support plate 3 51 with the mounting position fixing knob 3 5 3 from the back side, and the bubble crushing / bubble mixing nozzle 40 or the bubble crushing nozzle 60 is attached. ing.

Details of the water intake section 360 are shown in Figure 41 (a). Connect the connection pipe 15 to the pump 30 1 with the hose connection 3 7 1 to the intake filter connection 3 6 1, and attach the intake filter loading cap 3 6 2 with the intake filter 3 6 4 at the end. It is installed. 3 6 3 is an intake filter holding net.

Details of the discharge section 370 are shown in FIG. 41 (b). The connecting pipe 19 from the pump 301 is connected to the nozzle mounting elbow pipe 372 at the hose connecting part 371, and the bubble pulverizing / bubble mixing nozzle 40 or the bubble pulverizing nozzle 60 is attached to the tip of the pipe. . At the front end, a flow rate adjusting cylinder 373 provided with a flow rate reduction suppressing hole 374 is attached via a flow rate adjusting cylinder mounting auxiliary tool 375.

<Third embodiment> (bath)

FIG. 42 shows a third embodiment of the present invention, and shows a bubble bath apparatus 370 having a built-in pump 301 which is used by being immersed in a bathtub 300. In the present embodiment, a water intake slit 381 and a discharge port attachment mounting portion 383 are provided in the device case 380, and a water intake filter is attached to the water intake loss slit 381 with a water stop filter 382. Attach the microbubble generation nozzle 10 near the water intake filter 1, and connect it to the pump 301 with the connecting pipe 15. A bubble crushing / bubble mixing nozzle 40 or a discharge port attachment fitting 3 22 connected to the bubble crushing nozzle 60 is attached to the attachment portion 3 83. A discharge port attachment hose 3 2 3 can be connected to the discharge port attachment fixture 3 2 2. The gas inlet tube 302 is taken out of the bathtub 300 to take in air. In the figure, reference numeral 384 denotes an operation section for operating the switch 385 of the pump 301 from outside.

4th embodiment> (Bath)

FIG. 43 shows a fourth embodiment of the present invention. In the first embodiment, the bubble crushing / bubble mixing nozzle 40 or the bubble crushing nozzle 60 in the first embodiment is omitted. A bubble generating nozzle 10 is attached.

<Fifth embodiment> (bath)

FIG. 44 shows a fifth embodiment of the present invention, in which the bubble crushing / bubble mixing nozzle 40 or the bubble crushing nozzle 60 in the second embodiment is omitted, and microbubbles are generated in the discharge section 370. Nozzle 10 is attached.

<Sixth embodiment> (bath)

FIG. 45 shows a sixth embodiment of the present invention, in which the bubble crushing / bubble mixing nozzle 40 or the bubble crushing nozzle 60 in the third embodiment is omitted, and the discharge side of the pump 301 is provided with a microstructure. A bubble generating nozzle 10 is attached.

In these fourth to sixth embodiments, although the amount and diameter of air bubbles are inferior to those in the case where the two nozzles of the first to third embodiments are provided, compared to the conventional bubble bath, microbubbles are used. The effect can be expected enough.

7th embodiment> (Degassing device)

FIG. 46 is a sectional view showing the structure of the embodiment of the deaerator of the present invention.

In the figure, in a degassing device 400, a pressurized liquid that needs to be degassed from outside is introduced into a gas-liquid separation nozzle 420 through a connection pipe 401. The gas-liquid separation nozzle 420 has the structure shown in FIG. Fig. 47 (a) is a plan view showing the form of the introduction part 4 21 viewed from the pressurized liquid inflow side on the upper surface, (b) is a longitudinal sectional view, (c) is a view from the lower surface, (d) ) Is an enlarged view of (c), and (e) is an enlarged sectional view of the gas-liquid separation tube 4 23. is there. In the figure, reference numeral 404 denotes a gas recovery motorized valve, 406 denotes a gas recovery section pressure control valve, 408 denotes a pressure in the gas condensing section pressure control valve, 470 denotes a control panel, and 471 denotes a flow trace liquid. The surface relay, 472 is instrumentation wiring.

As shown in FIG. 2B, the gas-liquid separation nozzle 420 has a pressurized gas-liquid introduction section 421 and a gas-liquid separation space 424. Although the drawing shows the structure in which the introduction part 421 and the gas-liquid separation space forming cylinder 425 forming the gas-liquid separation space 424 are integrally formed, they may be formed separately.

A pressurized gas-liquid introduction hole 4 22 formed on the upper surface of the introduction section 4 21 is formed in the introduction section 4 21, and a gas-liquid separation space 4 formed below the introduction section 4 2 1 as a gas-liquid separation pipe 4 2 3. Opened to 24. The pressurized gas-liquid introduction hole 422 has a circular or elliptical shape, and the size and number of the diameters vary depending on the pressure and type of the pressurized gas-liquid, as shown in FIG. A plurality of pipes (31 in this case) are opened so that they are point-symmetrical at the end face, and a gas-liquid separation pipe 4 2 3 penetrating through the introduction section 4 2 1 as a gas-liquid separation space 4 2 4 It is open to. Around the inflow side opening of the pressurized gas-liquid introduction hole 422 is rounded in order to make the flow of the flowing liquid smooth. The pressurized gas-liquid introduced into the gas-liquid separation nozzle 420 passes through a gas-liquid separation tube 423 provided with a step portion whose diameter increases discontinuously toward the downstream side, and has a sharp cross-sectional area. When the gas is discharged into the gas-liquid separation space 4 2 4 that is widened, cavitation occurs in the inside of the gas-liquid separation tube 4 2 3 and the upper bottom wall 4 2 4 a of the gas-liquid separation space 4 2 4. The gas becomes mist and separates from the liquid.

In addition, as shown in FIG. 47 (e), the gas-liquid separation tube 423 has a biased inner wall formed therein, which causes cavitation on the wall surface of the gas-liquid separation tube. This cavitation phenomenon becomes more remarkable when the position of the triangular peak of the tap cross section is formed so as to be shifted downstream in the flow direction of the pressurized gas-liquid.

Returning to FIG. 46, the separated gas-liquid discharged from the gas-liquid separation nozzle 420 is introduced into the gas aggregating section 4330 by the separation gas-liquid introduction connection tube 402. At this time, the outer surface of the end surface of the gas-liquid separation nozzle A turbulence prevention collar 403 is formed to prevent turbulence from occurring between them.

The gas aggregating part 4330 has a dome-shaped swirling flow generating cylinder 432 and a gas aggregating cylinder 434 that is provided concentrically through the bottom of the swirling flow generating cylinder 43. As shown in FIG. 48, the connecting pipe for separation gas-liquid introduction 402 generates a swirl flow so that the separation gas and liquid are introduced into the swirl flow generation cylinder 43 while generating a swirl flow. A separation gas-liquid introduction hole 431 is provided at a position (tangential direction) deviated from the center axis of the cylinder 432. In Fig. 48, the separation gas-liquid introduction hole 431 is provided in the direction in which the swirling flow is generated to the left (counterclockwise) in the direction of fluid flow. May be generated.

A gas-liquid riser pipe 4336 penetrates the top of the swirling flow generation cylinder 432 of the gas aggregation section 4330, and a gas recovery section 44 is provided above the gas-liquid riser pipe 436. It is provided through the bottom of the zero. As shown in FIG. 49, a gas backflow prevention reduced diameter portion 443 is formed in the middle of the gas recovery portion 440, and is higher than the gas backflow prevention reduced diameter portion 443. The upper end of the gas-liquid riser pipe 436 is located at the top. Above the gas recovery section 440, a gas recovery pipe 405 is provided via a floatless liquid level relay for detecting the recovery state of gas and a gas recovery valve 404, and the device is connected continuously. It is connected to a decompression device 473 to enable operation. On the other hand, the lower end of the gas condensing cylinder 4 3 4 is connected to a gas collecting section pressure reducing nozzle 4 50 via a gas collecting section pressure control valve 408 and a collecting section pressure reducing nozzle connecting pipe 409. I have.

FIG. 50 shows the structure of the nozzle 450 for reducing the pressure in the gas recovery section. (A) shows the configuration of the introduction section 451, as viewed from the pressurized liquid inflow side on the upper surface, (b) shows a vertical cross section, and (c) shows a view as viewed from the pressurized liquid discharge port side on the lower surface. Show.

As shown in FIG. 2B, the nozzle 450 has a pressurized gas-liquid introduction section 451, and a return liquid suction pressure generation space 457. In the figure, the introduction part 45 1 and the return liquid suction pressure generating cylinder 45 56 that forms the return liquid suction pressure generation space 45 57 are formed separately, and they are fitted together and integrated. Although it is shown, it can be formed integrally from the beginning. A pressurized liquid introduction hole 452 is formed in the introduction section 451, which opens on the upper surface, and opens into the return liquid suction pressure generation space 457 formed below the introduction section 451. I have. The pressurized liquid introduction hole 452 has the shape of a circle, an ellipse, or a truncated cone or a truncated cone with the top surface of the introduction part 451 as the bottom surface. And the type of pressurized liquid, but as shown in Fig. 7 (a), a plurality of openings whose cross-sectional area of the return liquid suction pressure generating space 457 is 10% to 40% with respect to the end face. The books (three in this case) are opened so that they are point-symmetrical on the end face, penetrate through the introduction part 451, and open to the return liquid suction pressure generation space 457. Further, the periphery 452a of the inflow side opening of the pressurized liquid introduction hole 452 is rounded in order to make the flow of the flowing liquid smooth. Reference numeral 453 denotes a return liquid introduction hole.

The return liquid introduction hole 4 5 3 is formed by the return liquid introduction pipe 4 5 4 inserted from the side opening into the return liquid introduction hole 4 5 3 of the introduction section 4 5 1, and the return liquid suction pressure generation space 4 5 There is one radial or central opening (in this case, one central).

In addition, 455 is the return liquid introduction hole for closing the hole required for cleaning the inside of the return liquid introduction hole 545, and 458 is formed on the inner surface of the return liquid suction pressure generating cylinder 456. The arc-shaped pressurized liquid guide groove communicating with the pressurized liquid introduction hole 452, the connecting protrusion 509 formed at the end of the return liquid suction pressure generating cylinder 456, Reference numeral 460 denotes a joining stopper for joining the introduction portion 451 and the return liquid suction pressure generating cylinder 456.

Next, the deaeration process by the deaerator of the present invention will be described.

1. The pressurized gas-liquid introduced into the gas-liquid separation nozzle 420 generates a state close to a vacuum due to the cavitation phenomenon inside the gas-liquid separation nozzle 420, and the gas in the liquid becomes mist-like and is separated. .

2. The separated gas-liquid is sent as a swirling flow from the separated gas-liquid introduction hole 431 to the gas aggregation section 4330.

3. The sent gas and liquid accompany the swirling flow and reach the upper part of the dome, and the gas condensing cylinder 4 3 4 accelerates the swirling flow and descends. At this time, the gas condenses at the center of the gas condensing space 435 to form a tornado.

4. The liquid flows to the pressure regulating valve 408 below the gas condensing part 430 in the flow direction, but the tornado-shaped gas as described above acts as an air lift (the gas flow in the liquid). Due to the floating action), it stays in the center of the gas aggregation space 435.

5. The gas remaining in the central part is returned to the gas collecting part pressure reducing nozzle 450, and the gas collecting part 444 is connected to the gas collecting part pressure adjusting pipe 407 connected to the liquid introduction pipe 454. The inside of the chamber is decompressed and sent to the gas recovery section 440. That is, deaerator

4 10 0 Gas recovery unit attached to the front of the degassed water discharge port at the bottom of the bottom 4 Pressure reducing nozzle 4 5 0 Introducing section 4 5 1 Negative pressure generation effect of the pressurized liquid flowing into the liquid returning hole 4 5 3, whereby the pressure in the gas recovery section 44 is reduced, and the tornado-like gas is promoted.

6. The air bubbles that have floated pass through the gas-liquid riser pipe 436 and collect in the gas collection space 441 in the gas recovery section 4400.

7. As the gas recovery proceeds, the floatless liquid level relay 471 in the gas recovery space 441 detects the low liquid level and sends a signal to the control panel 470.

8. When receiving the signal of the liquid level drop, the motorized valve 404 opens and the motorized valve 406 closes. At the same time, the electric valve 408 provided at the lower part of the gas coagulation cylinder 4 3 4 is operated in the closing direction, and the gas in the gas recovery space 4 4 1 is forcibly recovered by the pressure reducing device 4 7 3. The flow in the riser pipe 436 is forcibly guided to the gas recovery section 4440 to raise the internal liquid level.

9. When the liquid level reaches the upper limit, the floatless liquid level relay 471 detects and sends a signal to the control panel 470.

10. When the signal of the liquid level rise is received, the pressure reducing device stops, the electric valve 404 closes, and the electric valve 406 opens.

1 1. At the same time, operate the motor-operated valve 408 at the bottom of the gas coagulation cylinder in the opening direction to collect gas.

1 2. By the above process, gas recovery under continuous operation of the equipment. Eighth Embodiment> (Air-fuel mixture production nozzle)

Hereinafter, an embodiment of the present invention will be described with reference to the drawings, taking as an example a four-stroke internal combustion engine using gasoline as an introduction fuel and air having a pressure of 2.0 kg / cm ² as an introduction fuel.

FIG. 51 shows a first embodiment of the structure of the air-fuel mixture production nozzle 500 according to the present invention. In the figure, A and B show the configuration of the pressurized gas connection section 502 and the pressurized gas introduction hole 503 viewed from the pressurized gas introduction side, and C to D show the fuel connection section 505 and pressurized gas introduction. The shape of the holes 503, E-F are the shapes of the fuel introduction section 506 and the pressurized gas introduction hole 503 viewed from the gas-mixture production space 507, and GH is the mixture injection surface. 1 shows an air-fuel mixture injection hole 509 as viewed from above.

As shown in the figure (a), the air-fuel mixture production nozzle 500 has a pressurized gas introduction hole 503, a fuel introduction part 506, and an air-fuel mixture discharge hole 508 in the air-fuel mixture production space 507. It is open. The pressurized gas introduction hole 503 is provided on a partition between the pressurized gas introduction pipe 501 and the air-fuel mixture production space 507 on a circumference around the fuel introduction section 506. You. Six pressurized gas introduction holes 503 are arranged at equal intervals. The number of pressurized gas introduction holes is not limited to six as long as they are equidistant from each other. As is clear from the cross section E--F in FIG. 51 (b), the outlet of the pressurized gas introduction hole 503 on the mixture gas production space 507 is provided on the inner wall of the gas mixture production space 507. And continuous with the linear groove 507a formed along the flow direction of the mixture. The groove 507a extends to the vicinity of the reduced cross section 507b of the mixed gas production space 507, and thereafter gradually disappears, and its shape is desirably a semicircular shape. The groove 507a constitutes guide means for guiding the pressurized gas so as to generate only a vertical vortex in the downstream direction. An annular recess 507 c is formed between the pressurized gas introduction hole 503 and the fuel introduction section 506 and is continuous in the circumferential direction, and the recess 507 c has a semicircular shape. are doing. In addition, the gas-mixture discharge space 507 is formed such that the gas-mixture production space 507 is reduced in diameter and communicates with the gas-mixture injection hole 509 and is opened. Inside the mixture exhaust hole 508, there is formed a stepped portion whose diameter is discontinuously increased toward the injection hole, and a tap in which the position of the peak is deviated toward the injection hole side. As shown in FIG. 2B, the fuel connection portion 505 is arranged at the center of the mixture-producing space so as to inject fuel along the flow direction of the mixture. If the air-fuel mixture is offset from the center of the air-fuel mixture production space, helical energy is applied to the air flow during fuel injection, making it difficult to control the mixing process, resulting in a stable combustion state. Absent.

The air introduced from the pressurized gas introduction pipe 501 to the pressurized gas connection section 502 and then narrowed down to the pressurized gas introduction hole 503 is discharged to the mixed gas production space 507. You. At this time, rapid expansion occurs and the flow becomes turbulent, and a so-called peeling area is generated near the fuel introduction section 506. Due to this peeling phenomenon, the air and fuel are evenly and uniformly mixed. In the case of the present embodiment, the air flow with the turbulent flow returns to the upstream side from the air-fuel mixture discharge hole 508 in a state where the spiral flow is suppressed by the groove The fuel is concentrated around the fuel introduction section 506, so that the mixing of air and fuel is remarkably improved. Furthermore, a stepped portion whose diameter increases discontinuously as it goes to the injection hole and a tap where the position of the peak is deviated toward the injection hole are formed inside the mixture exhaust hole 508. In a state in which the fuel and the air are well mixed, the air-fuel mixture is introduced into the cylinder with a spiral from the air-fuel mixture discharge hole 508, so that the combustion state is further improved.

Ninth Embodiment> (Air-fuel mixture production nozzle)

FIG. 52 shows a second embodiment of the structure of the air-fuel mixture production nozzle 500 according to the present invention. In the figure, A and B show the configuration of the pressurized gas connection section 502 and the pressurized gas introduction hole 503 viewed from the pressurized gas introduction side, and C to D show the fuel connection section 505 and pressurized gas introduction. The shape of the hole 503, E-F is the shape of the fuel introduction part 506 and the pressurized gas introduction hole 503 as viewed from the air-fuel mixture production space, and GH is the shape of the air-fuel mixture injection surface. The mixture injection hole 509 is shown. As shown in the figure (a), the air-fuel mixture production nozzle 510 has a pressurized gas introduction hole 503, a fuel introduction part 506, and an air-fuel mixture discharge hole 508 in the air-fuel mixture production space 507. It is open. The pressurized gas introduction hole 503 has the shape of a truncated cone with the pressurized gas connection surface at the bottom, and is open to the mixed gas production space 507. The fuel introduction section 506 is formed by a fuel introduction pipe connected to the fuel connection section 505 on the side surface, and the fuel-air mixture production space 507 It is oriented in the direction along the flow direction of the mixture, that is, parallel to the flow direction. The fuel introduction section 506 is open at the bottom of a semicircular annular concave section 507d formed around the pressurized gas introduction hole 503. The mixture exhaust hole 508 has an air-mixing production space 507 with a reduced diameter and is open to communicate with the mixture mixture injection hole 509. There is a step where the diameter increases discontinuously as it goes, and a tap where the position of the peak is deviated toward the injection hole side. As shown in FIG. 3B, three fuel introduction portions 506 are arranged around the pressurized gas introduction hole 503, and each of the fuel introduction holes 506 is arranged at an equal interval and has an additional space. It is equidistant from the pressurized gas introduction hole 503. The number of the fuel introduction portions 506 is not limited to three as long as they are at equal intervals.

The air introduced from the pressurized gas introduction pipe 501 to the pressurized gas connection section 502 and then narrowed down to the pressurized gas introduction hole 503 is discharged to the mixed gas production space 507. You. At this time, rapid expansion occurs and the flow becomes turbulent, and a so-called peeling area is generated near the fuel introduction hole 506. Due to this peeling phenomenon, the air and the fuel are evenly and uniformly mixed. In the case of the present embodiment, the turbulent airflow returning from the air-fuel mixture discharge hole 508 to the upstream side is concentrated in the fuel introduction portion 506 by the concave portion 507d. Therefore, mixing of air and fuel is improved. Further, a stepped portion whose diameter increases discontinuously toward the injection hole and a tap where the position of the mountain is biased toward the injection hole are formed inside the mixture discharge hole 508, In a state where the fuel and the air are well mixed, the air-fuel mixture is introduced into the cylinder with a spiral from the air-fuel mixture discharge hole 508, so that the combustion state is further improved.

<First Example> (Air-fuel mixture production nozzle)

FIG. 53 shows a third embodiment of the structure of the air-fuel mixture production nozzle 500. FIGS. A and B show the configuration of the pressurized gas connection section 502 and the pressurized gas introduction hole 503 viewed from the pressurized gas introduction side, and C to D show the fuel connection in the mixed gas production space 507. The shape of the part 505, the fuel introduction part 506, and the pressurized gas introduction hole 503 is shown, and EF indicates the mixture injection hole 509 viewed from the mixture injection surface.

As shown in the figure (a), the air-fuel mixture production nozzle 500 is located in the air-fuel mixture production space 507 A pressurized gas introduction hole 503, a fuel introduction portion 506, and a mixture gas discharge hole 508 are opened. The pressurized gas introduction hole 503 has the shape of a truncated cone with the pressurized gas connection surface at the bottom, and is open to the air-fuel mixture production space 507. The fuel introduction section 506 is formed by a fuel introduction pipe 504 connected to the fuel connection section 505 on the side surface, and is opened to the air-fuel mixture production space 507. In addition, the gas-mixture discharge hole 509 is formed such that the gas-mixture production space 507 has a reduced diameter and the diameter is substantially the same as that of the pressurized gas introduction hole 503 and communicates with the gas-mixture injection hole 509 and is opened. Inside the mixture exhaust hole 508, there is formed a stepped portion whose diameter increases discontinuously as it goes to the injection hole, and a tap where the position of the peak is deviated toward the injection hole.

As shown in FIG. 3B, three fuel connection portions 505 are provided evenly at every 120 degrees in the circumferential direction, and the fuel connection portions 505 are arranged in a direction perpendicular to the flow of the air-fuel mixture. The mixture is oriented to the center of the production space. The number of fuel introduction sections 506 is not limited to three as long as they are at equal intervals.

The air introduced from the pressurized gas introduction pipe 501 to the pressurized gas connection section 502 and then narrowed down to the pressurized gas introduction hole 503 is discharged to the mixed gas production space 507. You. At this time, rapid expansion occurs, resulting in a flow with turbulence, and a so-called peeling area is generated near the fuel introduction section 506. Due to this peeling phenomenon, the air and the fuel are evenly and uniformly mixed. It is preferable that the diameter of the pressurized gas introduction hole 503 and the diameter of the mixed gas discharge hole 508 are substantially equal. Further, a stepped portion whose diameter increases discontinuously toward the injection hole and a tap where the position of the mountain is deviated toward the injection hole are formed inside the mixture discharge hole 508, In a state where the fuel and the air are well mixed, the air-fuel mixture is introduced into the cylinder with a spiral from the air-fuel mixture discharge hole 508, so that the combustion state is further improved.

<First Embodiment> (First Embodiment of Overall System of Internal Combustion Engine)

FIG. 54 shows a first embodiment of the entire system of a fuel internal combustion engine to which the air-fuel mixture production nozzle according to the present invention is applied. The cylinder 561 is provided with an intake port 564 and an exhaust port 565, and each port is provided with an intake valve 531 and an exhaust valve 551. Ignition between intake port 564 and exhaust port 565 A plug 5 7 1 is provided. The intake port 564 communicates with the mixture-air injection sub-chamber 530, and the mixture-air injection sub-chamber 530 forms an intake manifold. An air-fuel mixture injection injection nozzle 500 is attached to the air-fuel mixture injection sub-chamber 530. The exhaust port 5 65 communicates with the exhaust manifold 5 52. 56 2 and 56 3 indicate a piston and a connecting rod, respectively.

The pressurized gas introduction pipe 5 0 1 sends the air pressurized by the compressor 5 41 to the mixture air injection nozzle 500 via the throttle valve 5 2 4. And a fuel introduction pipe 504 for feeding fuel from the reservoir tank 522 to the fuel-air mixture injection nozzle 500 through the shutoff valve 523 and the throttle valve 524. It is connected. The reservoir tank 522 receives the supply of fuel from the fuel tank 521.

FIG. 55 shows an enlarged view of the air-fuel mixture injection sub-chamber 530 according to FIG. 54. A nozzle mounting portion 534 into which 33 is inserted and fixed is provided, and is fastened to the cylinder head via a sealing member.

12th Embodiment> (Second Embodiment of Overall System for Internal Combustion Engine)

FIG. 56 shows a second embodiment of the entire system of the fuel internal combustion engine to which the air-fuel mixture production nozzle according to the present invention is applied. In this embodiment, the intake valve of the first embodiment shown in FIG. 54 is omitted, and the shut-out valve 523 is connected to the fuel introduction pipe 504 downstream of the throttle valve 524. The present embodiment differs from the first embodiment in that it is provided and that a shut-out valve 523 is added to the pressurized air introducing pipe 501.

FIG. 57 is an enlarged view of the connection portion of the fuel-air mixture production injection valve 500 according to FIG. 56. The fuel-air mixture production injection nozzle 5 is formed in the nozzle mounting portion 534 formed in the cylinder 561. The injection part 5 33 of 00 is fitted. A shut-out valve 523 is provided between the air-fuel mixture production injection valve 500 and the injection part 533.

According to the nozzle of the present invention, the pressurized air from the compressor 541 is directly introduced into the air-fuel mixture injection sub-chamber 530 or the cylinder 561, which was conventionally required. Machines such as an intake side pipe of the intake manifold and a start valve are not required, and a compact internal combustion engine can be obtained. In addition, the nozzle of the present invention can produce a uniform gas mixture, so that the two-stroke engine and the rotary

', It can be used also in Dieseljinjin. Industrial applicability

INDUSTRIAL APPLICABILITY The present invention can be used for purification of rivers and lakes, bubble baths, washing machines, hydroponics, gas recovery from liquids, and fuel-efficient internal combustion engines.

Claims

The scope of the claims

1. It has a pressurized liquid and gas introduction part and a cylindrical bubble generation space,

Forming a pressurized liquid introduction hole and a gas introduction hole that open into the bubble generation space in the introduction section;

Opening the pressurized liquid introduction hole at the end face of the introduction section,

Opening the gas introduction hole on a side surface of the introduction portion,

A micro-bubble generating nozzle provided with an adjusting valve for adjusting a gas introduction amount in a gas introduction pipe communicating with the gas introduction hole.

2. The microbubble generating nozzle according to claim 1, wherein a flow velocity reduction suppressing hole is provided in the bubble generating space forming cylinder.

3. The microbubble generating nozzle according to claim 1 or 2, wherein a reduced diameter portion or a portion filled with an activator or the like is provided below the bubble generating space forming cylinder.

4. The microbubble generating nozzle according to claim 1 or 3, wherein the shape of the pressurized liquid introduction hole is a circle or an ellipse.

5. The micro-cell according to any one of claims 1 to 4, wherein a straight or helical groove with a piercing or contracting flow is provided on the inner surface of the air bubble generating space forming cylinder to communicate with the pressurized liquid introduction hole. Bubble generation nozzle.

6. Microbubble generation according to any one of claims 1 to 5, wherein an introductory material check tube provided with a window for checking the generation state of microbubbles is connected at a downstream position of the bubble generation space forming cylinder. nozzle.

7. At the downstream position of the bubble generating space forming cylinder, a conveyer tube is provided that automatically sucks one or more types of gas or liquid or powder, mixes it with the pressurized liquid, and discharges it. 7. The microbubble generating nozzle according to any one of claims 1 to 6.

8. The microbubble generation nozzle according to any one of claims 1 to 7, further comprising a flow velocity suppression cylinder provided at a position downstream of the bubble generation space forming cylinder to suppress the flow velocity and to suppress a decrease in the flow rate.

9. A gas chamber is formed at an opening of a gas introduction hole on a bubble generation space side, and a porous plug is attached to the gas chamber, according to any one of claims 1 to 8. Micro bubble generation nozzle.

10. The microbubble generating nozzle according to any one of claims 1 to 9, wherein a gas bypass hole is provided in the gas introducing hole to bypass the gas chamber and directly to the bubble generating space. .

1 1. At the outer periphery of the bubble generation space forming cylinder joined to the introduction part, set the opening ratio of the flow rate reduction suppression hole and Z or the space length from the bubble generation space formation cylinder discharge surface to the flow rate control cylinder discharge surface. The microbubble generation nozzle according to any one of claims 1 to 10, further comprising a flow rate adjusting cylinder that is adjustable.

12. A micro-bubble curtain generating nozzle having a flat and divergent discharge part with a flow rate reduction suppression hole formed in the base at the downstream position of the bubble generation space forming cylinder joined to the introduction part. The microbubble generating nozzle according to any one of 1 to 11 above.

13. The regulating valve is composed of a gas introduction pipe connection portion and an air adjustment cock, wherein the ventilation hole of the gas introduction tube connection portion has a circular cross section, and the ventilation hole of the air adjustment cock has a cross-sectional ellipse. The microbubble generation nozzle according to any one of the range 1 to 12.

14. The microbubble generating nozzle according to any one of claims 1 to 13, wherein an air filter is attached to an air inlet of the gas inlet tube.

15. The stepped portion whose diameter increases discontinuously toward the downstream side in the pressurized liquid guiding groove and the inner wall of the bubble generating space in the bubble generating space forming cylinder on the bubble discharge side of the pressurized liquid introducing hole. The microbubble generating nozzle according to any one of claims 1 to 14, wherein the nozzle is provided with:

16. Taps whose peaks are shifted downstream are formed in the pressurized liquid guiding groove and the inner wall of the bubble generating space inside the bubble generating space forming cylinder on the bubble discharge side of the pressurized liquid introducing hole. The micro-bubble generating nozzle according to claim 15, characterized in that:

17. Microbubble generation noise according to any one of claims 1 to 16 Nozzle-loaded container with a nozzle attached to the pressurized liquid side connection pipe detachably.

18. A flow-promoting cylinder in which the microbubble generating nozzle or the nozzle loading container according to any one of claims 1 to 16 is concentrically arranged inside a large-diameter cylinder.

19. The microbubble generating nozzle according to any one of claims 1 to 16 is attached to the bubble discharge side of the nozzle, and has a bottomed casing having a diameter larger than the bubble generating space of the nozzle. A bubble dispersing nozzle for changing a bubble discharge direction, comprising a hemispherical bubble dispersing convex portion at the bottom center of the casing, and a bubble discharging port provided on a side peripheral wall.

20. A multi-nozzle loader provided between the pressurized liquid-side connection pipe and the bubble generation-side connection pipe, and provided with a loading section capable of loading a plurality of microbubble generation nozzles.

2 1. A gas introduction tube collecting chamber provided with a connection part that collects and connects the gas introduction tubes of a plurality of microbubble generation nozzles in one space.

2 2. It has a pressurized liquid and gas introduction part and a cylindrical introduction mixture space,

Forming a pressurized gas-liquid introduction hole and a plurality of gas-liquid introduction holes that open into the introduction mixture space in the introduction portion;

Opening the pressurized gas-liquid introduction hole at the end face of the introduction section,

Opening the plurality of gas-liquid introduction holes on the side surface of the introduction unit,

A gas-liquid mixing nozzle provided with an adjusting valve for adjusting a gas-liquid introduction amount to a plurality of gas-liquid introduction pipes communicating with the plurality of gas-liquid introduction holes.

23. The gas-liquid mixing nozzle according to claim 22, wherein a groove having a straight or spiral penetrating or contracting flow communicating with the pressurized gas-liquid introduction hole is provided on the inner surface of the cylinder for forming the introduced material mixing space. .

2 4. The diameter of the pressurized gas-liquid guiding groove and the inner wall of the mixed gas space inside the cylinder for forming the mixed material on the gas-liquid discharge side of the pressurized gas-liquid introduction hole increases discontinuously as it goes downstream. 24. The gas-liquid mixing nozzle according to claim 22, wherein a step portion is provided.

25. In the pressurized gas / liquid guide groove and the inner wall of the introduced material mixing space in the cylinder for forming the introduced material mixing space on the gas / liquid discharge side of the pressurized gas / liquid introducing hole, tap the mountain whose position is shifted to the downstream side. The gas-liquid mixing nozzle according to any one of claims 22 to 24, which is formed.

26. A plurality of pressurized liquid introduction holes are drilled in the pressurized liquid introduction section, and the discharge side openings of the plurality of pressurized liquid introduction holes are formed on the discharge side of the introduction section. A bubble crushing nozzle characterized by communicating with a space.

27. The bubble crushing nozzle according to claim 26, further comprising a step portion whose diameter increases discontinuously as the pressurized liquid introduction hole goes downstream.

28. The bubble crushing nozzle according to claim 26 or 27, wherein a tap is formed on the inner wall of the pressurized liquid introduction hole so that the position of the peak is deviated to the downstream side.

29. A plurality of pressurized liquid introduction holes and at least one gas introduction hole are formed in the introduction portion of the pressurized liquid and the gas, and the discharge side openings of the plurality of pressurized liquid introduction holes are formed in the introduction portion. A bubble crushing nozzle characterized in that it is provided with a common bubble generation space formed on the discharge side, and each of the pressurized liquid introduction holes is provided with a stepped portion whose diameter is discontinuously increased toward the downstream side.

30. The bubble crushing nozzle according to claim 29, wherein a tap whose mountain position is deviated downstream is formed on the inner wall of the pressurized liquid introduction hole.

3 1. A pump that draws water in the bathtub and discharges water into the bathtub again, and mixes atmospheric air with water pumped by the pump, which is provided in the discharge channel of this pump. A bubble bath device comprising a micro-bubble generating nozzle for discharging micro-bubbles in a bathtub.

32. A pump that sucks water in the bathtub and discharges water into the bathtub again, a microbubble generation nozzle that is provided on the suction side of this pump and mixes atmospheric air into the suction water, A bubble crushing nozzle provided in the discharge-side waterway, and provided with a bubble crushing nozzle for discharging air bubbles and microbubbles into the bathtub by miniaturizing bubbles in air mixed with bubble air fed by a pump. Bath equipment.

33. The first introduction section having a pressurized gas-liquid introduction hole for introducing liquid containing gas, and the cross-sectional area larger than the total area of the pressurized gas-liquid introduction hole on the discharge side of the pressurized gas-liquid introduction hole A gas-liquid separation nozzle having a gas-liquid separation space,

The gas-liquid separation nozzle discharges near the bottom of a swirling flow generating cylinder with a dome-shaped bottom. A separation gas-liquid introduction hole for introducing a separation gas-liquid discharged from the outlet side with respect to the central axis, and a gas agglomeration cylinder penetrating through the bottom of the swirling flow generating cylinder and provided coaxially with the central axis. A gas aggregating unit comprising:

A gas-liquid riser pipe penetrating the top of the swirling flow generating cylinder of the gas aggregation part; a gas recovery part penetrating the gas-liquid riser pipe to the bottom and communicating inside; A second introduction portion connected to a lower end of the pressurized liquid via a valve and formed with a pressurized liquid introduction hole for introducing a pressurized liquid to be discharged, and a pressurized liquid introduction hole on a discharge side of the pressurized liquid introduction hole. One end opens to the return liquid suction pressure generating space having a cross-sectional area larger than the total area of the second liquid inlet and the return liquid suction pressure generating space of the second introduction portion, and a side portion of the second introduction portion. A gas collection section pressure reducing nozzle having a return liquid introduction hole with the other end open;

A gas recovery part pressure adjusting pipe connecting the bottom of the gas recovery part and the return liquid introduction hole of the gas recovery part pressure reducing nozzle;

Degassing device equipped with.

3 4. A plurality of pressurized gas-liquid introduction holes are formed in the pressurized gas-liquid introduction portion of the gas-liquid separation nozzle, and discharge side openings of the plurality of pressurized gas-liquid introduction holes are formed on the discharge side of the introduction portion. 33. The degassing device according to claim 33, wherein the degassing device communicates with the common gas-liquid separation space.

35. The degassing device according to claim 33, wherein a step portion whose diameter increases discontinuously as it goes downstream of the pressurized gas-liquid introduction hole of the gas-liquid separation nozzle is provided. .

36. A claim in which the triangular cross section of the cross-section is formed on the inner wall of the pressurized gas-liquid introduction hole of the gas-liquid separation nozzle with a tap whose position is deviated to the downstream side in the flow direction of the pressurized gas-liquid. The degassing device as described.

37. The method according to any one of claims 33 to 37, wherein each valve connected to the gas recovery pipe, the gas recovery section pressure control pipe, and the downstream of the gas aggregation pipe is electrically controlled. The degassing device according to item 1.

38. The deaerator according to any one of claims 33 to 37, wherein a pressure reducing device such as a vacuum pump is attached to the gas recovery pipe.

39. A fuel injection device used in an internal combustion engine, wherein a pressurized gas connection portion connected to a pressurization source and a nozzle connection portion connected to an intake portion of the internal combustion engine are formed at both ends of a cylindrical shape. Having a fuel connection portion on the side surface, having a mixed gas production space in the cylinder, and a pressurized gas introduction hole penetrating through the pressurized gas connection portion in the space and penetrating through the fuel connection portion. A fuel introduction hole and an air-fuel mixture discharge hole penetrating through the nozzle connection portion are opened, and at least a diameter of the air-fuel mixture production space near the fuel introduction portion is set to be larger than a diameter of the pressurized gas introduction hole. An injection nozzle for producing an air-fuel mixture.

40. The air-fuel mixture injection nozzle according to claim 39, wherein a reduced diameter portion is provided below the air-fuel mixture production space.

41. The fuel-air mixture injection nozzle according to claim 37, wherein an annular concave portion is formed between the fuel introduction portion and the pressurized gas introduction hole.

42. The claim 39, wherein the opening of the pressurized gas introduction hole is formed in the inner wall of the mixture gas production space, and is connected to guide means extending downstream in the flow direction of the mixture gas. 41. The air-fuel mixture production injection nozzle according to any one of the above items.

43. The mixing according to any one of claims 39 to 42, characterized in that a step portion is provided in which the diameter increases discontinuously as the mixture gas exhaust hole approaches the injection hole. Qi injection nozzle.

44. The mixing according to any one of claims 39 to 43, wherein a tap is formed on the inner wall of the air-fuel mixture discharge hole such that the position of the peak is deviated toward the injection hole. Qi injection nozzle.