JP2014147901A - Microbubble generator and microbubble generating tube structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a microbubble generator, which can be easily placed in an existing liquid feeding pipe for flowing liquid to a liquid feeding target therethrough.SOLUTION: A microbubble generator for generating microbubbles from liquid having gas dissolved therein comprises: a cylinder having a groove bored on the outer periphery and an internal microbubble generating passage where the liquid is passed and microbubbles are generated; and an elastic O-ring fitted into the groove. The microbubble generator is placed in the liquid feeding pipe for sending a quid to a liquid feeding target with a space between the liquid feeding pipe and the cylinder sealed by the O-ring.

Description

  The present invention relates to a microbubble generator for generating microbubbles from a liquid fluid in which a gas is dissolved, and a microbubble generating pipeline structure including the microbubble generator.

  Research on microbubbles started around 1985. Since microbubbles are a new technical field, there are many unexplained points. Currently, the following two phenomena are known for microbubbles.

  One is a permeation phenomenon in which the microbubbles are small in size, so that they can easily penetrate into fibers, pores, and the like. Another is crushing. Crushing is a phenomenon in which microbubbles are discharged into the water and are crushed by the water pressure in the water to become smaller nanobubbles that are eventually destroyed. It is said that when this crushing occurs, an ultrasonic wave of about 400 km / h is generated and a high heat of nearly 5500 degrees is generated. And it is said that dirt and the like are easily removed by the interaction of these two phenomena.

  As other specific use cases, in the fisheries field, examples of growing freshwater fish and saltwater fish simultaneously by generating microbubbles in water, examples of preventing oyster red tide damage, and examples of improving scallop aquaculture efficiency Etc. have been reported.

  In the ship field, there is a research to reduce the resistance of the ship by flowing microbubbles to the bottom of the ship and increase the speed of the ship. In the field of automobiles, a technique for improving combustion efficiency by injecting a mixed fuel containing air through an internal combustion engine (engine) through a microbubble generator has been studied.

  In addition, shower heads with devices that take in air from the atmosphere and generate microbubbles are on the market. Furthermore, circulating microbubble generators for bathtubs are also sold.

  As described above, utilization and research on microbubbles are performed in a wide range of technical fields.

  Here, as a means for generating microbubbles, about six types such as a high-speed shearing method, a pressure crushing method, and a cavitation method are known. Many of them draw air from the outside by an aspirator method or the like. Or forced injection.

  On the other hand, Patent Document 1 discloses a cavitation-type microbubble generator that generates microphone bubbles from dissolved air without inhaling air from the outside.

  The microbubble generator of Patent Document 1 has a simple structure that does not require a swirling flow by a high-pressure pump, and uses cavitation that occurs when a high-speed water flow passes through a plurality of nozzles arranged at narrow intervals, (A) a first nozzle 3 on the water inlet side that gradually reduces a cross-sectional area perpendicular to the central axis from the inlet 2e toward the outlet 2f; and (b). The first nozzle 3 on the inlet side is continuously disposed through the communication passage 8 and gradually increases in cross-sectional area perpendicular to the central axis from the inlet 4e toward the outlet 4f. It has two nozzles 4 and (c) a side chamber 8b opened only in the communication path 8.

  However, sufficient proposals have not been made for a means for simply arranging the microbubble generator in an existing pipe and a specific practical example using an existing liquid fluid. For example, Patent Document 2 discloses a shower head in which a venturi tube 1 is built in a shower head and microbubbles are generated. However, the Venturi tube 1 locks the Venturi tube 1 by locking the rubber packing 7 to an annular projection that is not normally present in the shower head, and stops water. Therefore, there is a need for a custom-made (with internal annular protrusion) showerhead that is specific to the invention.

JP 2009-136864 A JP 2006-116518 A

  Therefore, the present invention provides a microbubble generator that can be easily arranged in an existing liquid supply pipe that allows liquid to flow to a liquid supply location, and a specific microbubble generation pipe that includes a microbubble generator in a pipe. The purpose is to provide a structure.

  As the effect of microbubbles, there are a cleaning effect by ultrasonic waves and high heat generated when the microbubbles are crushed, as well as a cleaning effect by microbubbles. We thought to improve the cleaning power by incorporating this effect into the water supply channels of washing machines, dishwashers and urinals.

  In this case, the tap water supply pressure is about 0.1 MPa as a general tap water pressure, and the pipe diameter of the tap water supply pipe that is generally piped without taking in air from the outside. The shape of the pipe and the arrangement method that can make the contained air contained in the microbubbles were examined. And the method of introduce | transducing to the existing liquid feeding tube simply was examined.

And in order to solve said subject, this invention
(1)
A microbubble generator that generates microbubbles from a gas-dissolved liquid,
A cylinder having a microbubble generating path for generating a microbubble through the liquid and having a groove formed in the outer periphery, and an O-ring fitted in the groove and having elasticity,
The microbubble generator has a configuration in which the liquid is disposed in a liquid feeding pipe that flows to a liquid feeding place, and the space between the liquid feeding pipe and the cylinder is sealed by the O-ring.
(2)
A pipe structure for supplying a microbubble mixed liquid to a liquid receiving place,
A liquid-feeding tube for flowing a liquid to a liquid-feeding place, a microbubble generator according to (1), wherein the microbubble generator is disposed in the liquid-feeding tube and seals between the liquid-feeding tube and the cylinder with the O-ring; It was set as the structure of the microbubble production | generation pipeline structure characterized by consisting of.
(3)
A microbubble generator that generates microbubbles from a gas-dissolved liquid,
A cylinder having a microbubble generation path for generating a microbubble through the liquid inside by providing a flange at one end and providing a flange at one end, and an O-ring fitted in the groove and having elasticity,
Microbubble generation characterized in that it is locked by the flange to the end of a liquid feed pipe that causes the liquid to flow to a liquid feed location, and the O-ring is sealed between the liquid feed pipe and the cylinder The configuration of the vessel.
(4)
A pipe structure for supplying a microbubble mixed liquid to a liquid receiving place,
The liquid is tap water, the liquid delivery place is a flush toilet, the liquid feed pipe is a water supply pipe, the water supply pipe for flowing the tap water to the flush toilet, and the flange at the end of the water supply pipe The micro-bubble generating pipe line structure is characterized by comprising the micro-bubble generator described in (3) which is stopped and sealed between the water supply pipe and the cylinder with the O-ring.
(5)
A microbubble generator that generates microbubbles from a gas-dissolved liquid,
A joint pipe that is screwed between ends of a liquid feeding pipe that flows the liquid to a liquid feeding place and has a second internal thread inside, and is screwed to the second internal thread on the outer periphery of one end. And a cylinder provided with a microbubble generating path for generating a microbubble through the liquid by providing a flange at an end on the screw part side and including the threaded portion, and the first pipe between the joint pipe and the cylinder. The microbubble generator is characterized in that sealing is performed by screwing the two inner screw portions and the screw portions.
(6)
A pipe structure for supplying a microbubble mixed liquid to a liquid receiving place,
A liquid feed pipe for flowing liquid to a liquid feed place, and the joint pipe is screwed between end portions of the liquid feed pipe, and between the joint pipe and the cylinder, the second internal thread portion and the screw portion The microbubble generator described in (5), which is sealed by screwing, has a configuration of a microbubble generating pipe line structure.
(7)
The microbubble generation path includes a first channel whose inner diameter gradually narrows from the liquid inlet side end toward the center, a second channel connected to the first channel, and a second channel The microbubble generation according to any one of (1), (3), and (5), comprising a third flow path that is connected and has an inner diameter that gradually increases toward the other outlet side of the liquid The configuration of the vessel.
(8)
The liquid in which the gas is dissolved is tap water in which air is naturally dissolved, and the configuration of the microbubble generating conduit structure according to (2) or (6) is adopted.
(9)
The liquid-delivery place is inside the washing machine or the inside of the dishwasher.
(10)
It was set as the structure of the washing machine characterized by including the microbubble production | generation pipeline structure as described in (9).
(11)
It was set as the structure of the dishwasher characterized by providing the microbubble pipe line structure as described in (9).
(12)
The liquid is liquid fuel, and the liquid-sending place is inside the internal combustion engine.
(13)
It was set as the structure of the automobile characterized by having the microbubble production | generation pipeline structure as described in (12).

  For some time, it has been known that cavitation occurs by gradually opening the water channel narrowed down as in Bernoulli's Law, but such a device is a condition of the water supply pipe diameter and water supply pressure of a general household water pipe. It was not thought that it could cause the generation of the expected amount of microbubbles, or was not commercialized. Assuming that the water pipe diameter of a general household is 13 mm and the water supply pressure is 0.1 MPa, it has been considered that in order to generate microbubbles, it is necessary to take in air from outside or to apply pressure.

  Looking at the washing machine etc., there are orifices and resin obstructions at the water intake port of the washing machine to weaken the flow rate, but basically the water supply channel should be gradually throttled and then gradually opened again. A simple pipe structure (microbubble generation path (first flow path 2c to third flow path 2e)) is unnecessary from the common sense of water supply pipes. Similarly, the dishwasher did not need such a conduit. Also, smooth water sprinkling was desirable for urinal washing.

  In order to generate microbubbles in a washing machine, etc., the inner diameter is narrowed in a conical shape from the inlet side somewhere in the pipe of the water supply pipe or internal piping, and then narrowed down so that it gradually opens. A microbubble generation path was formed in which the pipe line was again expanded into a conical shape. Cavitation was generated, and the negative pressure was used to make microbubbles.

  As a result, under the conditions of a water pipe diameter of 15A (13 mm), a water supply pressure of about 0.1 MPa, and general tap water containing air, the shape of the microbubbles can be reduced by connecting the tip portions of the cone and the cone. The occurrence was confirmed. At this time, the shape of the microbubble generation path does not need to be vertically symmetrical.

  In the study, the microbubble generation path used was a brass cut product, but it may be made of resin or casting if accuracy can be ensured. Alternatively, two trumpet-shaped cylinders may be made and connected at the outlet of each trumpet. Alternatively, a trumpet-like structure may be formed and screwed to the water supply pipe. Furthermore, you may make it integrally with a water supply pipe. Moreover, you may narrow down a part of water supply pipe | tube, and you may form the microbubble production | generation path shown in figure. In any case, a microbubble generation path may be provided.

  Even in general water pipes, when water pipes with different diameters are connected, turbulent flow may occur at the connection point, and bubbles may be generated due to cavitation. The amount generated is small and the bubble diameter seems to be large. By intentionally providing the microbubble generation flow path, for example, the first flow path 2c to the third flow path 2e exemplified here, in the water pipe, generation of microbubbles of the expected amount and diameter can be confirmed.

  In the microbubble generation path of the microbubble generator 1 according to the present invention, the amount of microbubbles generated increases as the feed water pressure increases. However, even if it is the pressure (about 0.1-0.5 MPa) of the water pipe in a general household, the microbubble of sufficient quantity and a diameter can be confirmed. The pressure can be increased if the diameter of the liquid feeding pipe into which the microbubble generator is introduced is large, and the pressure can be lowered if the diameter of the liquid feeding pipe is small. Moreover, even if the pressure of the liquid fluid is a low pressure of 0.1 to 0.15 Mpa and a high pressure of about 0.4 to 0.5 MPa, microbubbles can be generated sufficiently.

  Moreover, when the temperature of the feed water increases, the amount of contained air decreases, but the state of the contained air (dissolved air) becomes unstable, or the amount of microbubbles generated around a certain temperature increases. Moreover, when hot water and cold water are mixed, more microbubbles are generated. For example, 40 ° C. mixed water obtained by mixing warm water 60 ° C. and cold water 10 ° C. is suitable.

Moreover, in the microbubble generation path in the microbubble generator 1 according to the present invention, the amount of microbubbles generated is also affected by the amount of air contained in the water supply. However, even if it is tap water supplied to ordinary households (tap water in which air is naturally dissolved, which is not pressurized or injected with air more than usual), microbubbles of sufficient quantity and diameter Can be confirmed.

  In the present invention, since an O-ring having elasticity is fitted on the outer periphery of a cylinder having a microbubble generation path therein, an existing liquid supply pipe is left as it is, and a microbubble generator is disposed inside the liquid supply pipe. It is possible to easily construct a microbubble generation pipe line structure using an existing liquid feeding pipe.

  Further, since the O-ring seals between the liquid feed pipe through which the liquid passes and the pipe having the microbubble generation path, the entire flow rate of the liquid can be passed through the microbubble generation path. The fluid does not escape from between the liquid feeding pipe and the cylinder, and there is no loss of the liquid feeding pressure in the cylinder.

  Moreover, this invention can be easily fixed to the inside of the edge part of the existing liquid feeding pipe | tube by providing a flange in the edge part of the cylinder which equips an inside with a microbubble production | generation path.

  In addition, the present invention includes a cylinder having a microbubble generation path in the joint pipe, and the joint pipe is screwed between the liquid feeding pipes to be introduced into an arbitrary place of the existing liquid feeding pipe by screwing. can do.

  If the place where the liquid mixed with microbubbles is fed is a washing place, toilet, washing machine, dishwasher, etc., product development that improves the cleaning power and adds microbubble generation capability at a low cost It becomes possible. It is also easy to attach the micro-table generator to equipment that has already been installed.

  If the liquid feeding location where the microbubbles are mixed is an internal combustion engine, the combustion efficiency is improved.

(A) The front view of the microbubble generator of Example 1, (B) The cross-sectional schematic diagram of a microbubble duct structure. In addition, the cross section of the microbubble generator of (B) is AA 'cross-section schematic of FIG. 1 (A). It is the (A) plane of the microbubble generator of Example 2, (B) The front view, (C) The bottom view. FIG. 3 is a schematic cross-sectional view taken along the line B-B ′ in FIG. 2 of the microbubble generator according to the second embodiment. It is a cross-sectional schematic diagram of the microbubble production | generation pipeline structure (spad) of Example 2. FIG. It is a cross-sectional schematic diagram of the microbubble production | generation pipeline structure of Example 3. FIG. It is a cross-sectional schematic diagram of the microbubble production | generation pipeline structure of Example 4.

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

  In the present invention, the existing air that has been in contact with the air without being sucked or injected into the liquid from the outside, without pressurizing the liquid to a high pressure, or without any special treatment for generating microbubbles. A microbubble generator and a microbubble generating pipeline structure for generating microbubbles using a fluid such as general tap water or fluid fuel.

  As shown in FIG. 1, a microbubble generator 1 as an example of the present invention is a microbubble generator that generates microbubbles from a liquid 5 in which a gas is dissolved, and includes a cylinder 2, O-rings 3, 3, It consists of.

  The cylinder 2 is provided with a microbubble generation path in which grooves 2a and 2a are formed on the entire outer periphery, the liquid 5 is passed through the inside, and microbubbles are generated. Since the tube 2 is inserted into the liquid feeding tube 4, if both ends are tapered 2b, the tube 2 can be smoothly inserted into the liquid feeding tube 4.

  The microbubble generation path includes a first flow path 2c whose inner diameter gradually narrows from the inlet side end of the liquid 5 toward the center of the flow direction of the liquid 5, and a second flow path 2d connected to the first flow path 2c. The third flow path 2e is connected to the second flow path 2d and the inner diameter gradually increases toward the other end on the outlet side of the liquid 5. In FIG. 1, the flow of the liquid 5 is shown from the top to the bottom. However, in the microbubble generator 1 including the microbubble generation path in FIG. 1, the flow of the liquid 5 may be reversed upside down. With such a shape, there is no need to worry about the installation direction, and there is no mistake in the installation direction.

  The O-ring 3 is a ring that is fitted in the groove 2 a and has elasticity, and has an outer diameter larger than the outer diameter of the side surface of the cylinder 2. For example, a ring-shaped rubber packing, a silicon male packing, and the like can be exemplified. The material is appropriately selected depending on the flowing liquid 5.

  The microbubble generator 1 thus configured is disposed in a liquid feeding pipe 4 for flowing a liquid 5 to a liquid feeding place, an O-ring 3 is positioned between the liquid feeding pipe 4 and the cylinder 2, and a liquid feeding It is sandwiched between the tube 4 and the tube 2 and compressed to seal between the liquid feeding tube 4 and the tube 2. As a result, the microbubble generator 1 can be easily arranged inside the liquid feeding tube 4, and the liquid 5 can be flowed through the microbubble generation path without any leakage, so that the liquid 5 can be used without any pressure loss. . The microbubble generator 1 is pushed by the flow of the liquid 5 in the liquid feeding pipe 4 and may be locked to an end portion, a stepped portion, a thinned liquid feeding pipe section, or a curved portion of the liquid feeding pipe 4. And it can also be locked in arbitrary places, for example by crushing the liquid feeding tube 4.

  As shown in FIG. 1, a microbubble generation pipeline structure 1 a which is an example of the present invention is a pipeline structure for supplying a microbubble mixed liquid to a liquid feeding location, and the liquid 5 is allowed to flow to the liquid feeding location. It consists of a liquid feed pipe 4 and a microbubble generator 1 which is arranged in the liquid feed pipe 4 and seals between the liquid feed pipe 4 and the cylinder 2 with an O-ring 3.

  Such a microbubble generating pipeline structure 1a uses general tap water, causes cavitation in the pipeline, and microbubbles the air contained in tap water easily and inexpensively. Can do. The same applies to Examples 2 and 3.

  For example, if the liquid feeding place is a washing machine, a dishwasher, a flush toilet, etc., a microbubble generator can be easily provided by arranging a microbubble generator in a water supply pipe for flowing tap water to the washing place. A structure can be built. Furthermore, examples of the water supply pipe include a pipe through which water of a cleaning device such as an automobile and an aircraft passes, such as a spray pipe.

  And since microbubble mixed water is sent to these liquid feeding places, while the detergency in those liquid feeding places improves, the washing | cleaning effect in the subsequent drainage channel can also be anticipated.

  Further, if the liquid feeding place is an internal combustion engine (engine), a microbubble generator for generating microbubbles in a pipe line connected to a fuel injection hole of the internal combustion engine (for example, a microbubble generator 26 described later). It is possible to expect improvement in combustion efficiency by providing the fuel and injecting the fuel in the form of microbubbles. Similarly, a fuel consumption efficiency can be improved by providing a microbubble generator for generating microbubbles in a pipe line connected to a fuel injection hole of a combustion device such as a burner.

  Automobiles can be exemplified as those having an internal combustion engine. Automobiles include automobiles and motorcycles. It can also be applied to thermal power plants.

  In addition, a microbubble generation pipe line structure for generating microbubbles at the bottom of the ship's bow is provided to generate microbubbles and flow them to the bottom of the ship, reducing the resistance of the bottom and speeding up the ship. Can do.

  As shown in FIG. 2-4, the microbubble generator 11 as an example of the present invention is a microbubble generator that generates microbubbles from a liquid 5 in which a gas is dissolved, and includes a cylinder 12, an O-ring 3, 3.

  The tube 12 has grooves 2a and 2a formed on the entire outer periphery, provided with a flange 12f at one end, and a microbubble generating path (first flow path 2c, first flow path) for generating a microbubble through the liquid 5 therein. Two flow paths 2d and a third flow path 2e) are provided.

  The microbubble generator 11 thus configured is locked by the flange 12f at the end of the liquid feeding pipe 4 for flowing the liquid 5 to the liquid feeding place, and the liquid feeding pipe 4 and the cylinder as in the first embodiment. 12 is sealed with an O-ring 3. The flow of the liquid 5 may be reversed upside down. As shown in FIGS. 3 (B) and 3 (C), it is locked to the end of the liquid feeding tube 4.

  In FIG. 4, the microbubble production | generation pipe line structure 11a for the flush toilet (urinal 13) using the microbubble generator 11 was shown. The place where the microbubble generator 11 is introduced is an end of a water pipe 4a of an existing spud that supplies flush water 5a (tap water) for flush toilets to a ceramic urinal 13.

  The microbubble generation pipe line structure 11a is a pipe line structure for supplying a microbubble mixed liquid into the urinal 13, and includes a water supply pipe 4a for sending flush toilet water 5a to the urinal 13 and an end of the water supply pipe 4a. And a microbubble generator 11 which is locked by a flange 12f and seals between the water supply pipe and the cylinder with the O-ring.

  Next, the assembly of the microbubble generation pipeline structure 11a will be described. As shown in FIG. 4, the ceramic urinal 13 receives flush water 5a supplied from the water supply pipe 4a by a hollow portion 13p having a hole 13r formed in the bottom, and the wash water 5b from the hole 13r. As a result, it is distributed and flowed on the wall of the urinal 13. To assemble the spud, work in the opening 13n of the upper surface 13a of the urinal 13.

  First, in the opening 13n of the upper surface 13a of the urinal 13, a nozzle 13b having an upper portion in a tubular shape, a protrusion 13m projecting substantially horizontally toward the center, a screw portion 13k on a side surface, and a lower portion extending in a skirt shape. Is inserted into the cavity 13p so as not to drop. The expanded portion of the nozzle 13b has a smaller diameter than the opening 13n.

  Subsequently, while holding the nozzle 13b, the rubber skirt-shaped triangular packing 13c is fitted into the nozzle 13b from above the nozzle 13b and is inserted into the opening 13n. Then, a packing 13d and a washer 13h are inserted from the upper part of the nozzle 13b, and tightened with a flanged nut 13e.

  As a result, the nozzle 13b is fixed to the opening 13n of the upper surface 13a of the urinal 13 and seals between the nozzle 13b and the opening 13n with a triangular packing 13c. Further, the packing 13d also seals the opening.

  Subsequently, the microbubble generator 11 is press-fitted into the end of the water supply pipe 4a, and the water supply pipe 4a is inserted into the nozzle 13b. The microbubble generator 11 is locked to the inner flange 13m of the nozzle 13b. Moreover, it inserts in the order of the fastening nut 13g, the washer 13i, and the packing 13f in the outer periphery of the edge part of the water supply pipe | tube 4a.

  Finally, when the water supply pipe 4a inserted into the nozzle 13b is tightened with the tightening nut 13g, the upper portion of the nozzle 13b is sealed with the packing 13f. The O-ring 3 seals between the water supply pipe 4a and the cylinder 12. The flange 12f of the microbubble generator 11 is located between the end of the water supply pipe 4a and the inner flange 13m of the nozzle 13b.

  In this manner, the microbubble generator 11 can be introduced into the existing urinal 13 having a spud structure without any change in appearance. Of course, the same is true for new establishments. Moreover, recently, as a watering method for cleaning the urinal, a resin or metal called spreader is directly called from the water supply pipe without sprinkling water from the hole 13r opened in the potter's pottery part via the spud. Some are directly connected to the diffusion nozzle and spray water. In the case of such a structure, the shape of the microbubble generator 1 may be suitable. Similarly, it can be introduced into the water supply pipes for low tank toilets. By introducing microbubble mixed washing water into urinals and toilets, not only toilet surfaces but also drainage pipes installed in buildings The inside of the tube can also be cleaned.

  As shown in FIG. 5, a microbubble generator 21 as an example of the present invention is a microbubble generator that generates microbubbles from a liquid 5 in which a gas is dissolved, and includes a joint tube 24 that is threaded at both ends, The cylinder 22 for causing cavitation and the packings 23 and 23a.

  The joint pipe 24 is screwed between the ends 4b and 4c (dotted lines) of the liquid feeding pipe 4 for flowing the liquid 5 to the liquid feeding place, and the cylinder 22 for causing cavitation inside is screwed to the joint pipe 24. A second inner threaded portion 24c is provided. An inner screw portion 24a is provided on the inner surface of one end of the joint pipe 24, and an outer screw portion 24b is provided on the outer periphery of the other end. The joint tube 24 is screwed into the screw portions of both end portions 4b and 4c of the liquid feeding tube 4. The packing 23a may be an O-ring, but a flat packing may be used between the tip of the end 4b of the liquid feeding tube 4 and the inside of the joint tube 24 instead of the O-ring.

  The cylinder 22 is provided with a screw portion 22a that is screwed into the second inner screw portion 24c on the outer periphery of one end portion, and a flange 22b is provided at the end portion on the screw portion 22a side to stop, and the liquid 5 is placed inside. A microbubble generation path (first flow path 2c, second flow path 2d, and third flow path 2e) for generating through microbubbles is provided. The space between the joint tube 24 and the cylinder 22 is sealed by screwing the second inner screw portion 24c and the screw portion 22a.

  A ring-shaped packing 23 is fitted to the external thread portion 24 b of the joint pipe 24, and seals the joint pipe 24 and the end portion 4 c of the liquid feeding pipe 4. Similarly, a ring-shaped packing 23 a is also fitted to the end 4 b of the liquid feeding pipe 4, and the joint pipe 24 and the end 4 b of the liquid feeding pipe 4 are sealed. The seal here is a ring-shaped packing, but depending on the situation, it may be sealed with a flat-plate packing or a sealing tape.

  If it is such a microbubble generator 21, the microbubble production | generation pipeline structure 21a can be easily formed only by connecting with the both ends 4b and 4c of the liquid feeding pipe | tube 4. FIG. Therefore, the microbubble generator 21 can be easily introduced also into the existing liquid feeding pipe 4 and the microbubble mixed liquid can be supplied to the liquid feeding place.

  The space 25 on the inlet side of the liquid to be fed is a space for attaching a resin plate having four openings eccentric to 15 degrees in order to rotate the liquid to be fed to form a swirling flow and increase the flow velocity. This plate may or may not be attached depending on conditions such as water supply pressure.

  As shown in FIG. 6, a microbubble generator 26 as an example of the present invention is a microbubble generator that generates microbubbles from a liquid 5 in which a gas is dissolved. The microbubble generation flow path is provided inside. The microbubble generation paths are the first flow path 2c, the second flow path 2d, and the third flow path 2e.

  The screw portion 27a and the inner screw portion 4e provided inside the liquid feeding tube 4 are screwed together. And the water stop should just wind around the screw part 27a using the existing sealing tape, and screw it to the internal thread part 4e of the liquid feeding pipe 4. FIG. In this way, the microbubble generator can be arranged in the existing piping, and the microbubble generating pipeline structure 26a can be easily constructed.

DESCRIPTION OF SYMBOLS 1 Micro bubble generator 1a Micro bubble production | generation pipe line structure 2 Cylinder 2a Groove 2b Taper 2c First flow path 2d Second flow path 2e Third flow path 3 O-ring
4 Liquid feed pipe 4a Water supply pipe 4b End 4c End 4e Screw part 5 Liquid 5a Flowing water 5b for flush toilet 5 Wash water
11 Micro Bubble Generator 11a Micro Bubble Generation Pipe Structure 12 Tube 12f Flange 13 Urinal 13a Top Surface 13b Nozzle 13c Triangle Packing 13d Packing 13e Nut with Flange 13f Packing 13g Tightening Nut 13h Washer 13i Washer 13k Screw Part 13m Inner Flange 13n Opening 13p Cavity 13r Hole 21 Microbubble generator 21a Microbubble generation conduit structure 22 Tube 22a Screw portion 22b Flange 23 Packing 23a Packing 24 Joint tube 24a Inner screw portion 24b Outer screw portion 24c Second inner screw portion 25 Space 26 Microbubble Generator 26a Micro bubble generation pipe structure 27 Tube 27a Screw part

Claims (13)

A microbubble generator that generates microbubbles from a gas-dissolved liquid,
A cylinder having a microbubble generating path for generating a microbubble through the liquid and having a groove formed in the outer periphery, and an O-ring fitted in the groove and having elasticity,
A microbubble generator characterized in that the microbubble generator is disposed in a liquid feeding pipe for flowing the liquid to a liquid feeding place, and seals between the liquid feeding pipe and the cylinder by the O-ring. A pipe structure for supplying a microbubble mixed liquid to a liquid receiving place,
A microbubble generator according to claim 1, wherein the microbubble generator according to claim 1 is arranged in the liquid feeding pipe, and the O-ring seals between the liquid feeding pipe and the cylinder. A microbubble generating conduit structure characterized by comprising: A microbubble generator that generates microbubbles from a gas-dissolved liquid,
A cylinder having a microbubble generation path for generating a microbubble through the liquid inside by providing a flange at one end and providing a flange at one end, and an O-ring fitted in the groove and having elasticity,
Microbubble generation characterized in that it is locked by the flange to the end of a liquid feed pipe that causes the liquid to flow to a liquid feed location, and the O-ring is sealed between the liquid feed pipe and the cylinder vessel. A pipe structure for supplying a microbubble mixed liquid to a liquid receiving place,
The liquid is tap water, the liquid delivery place is a flush toilet, the liquid feed pipe is a water supply pipe, the water supply pipe for flowing the tap water to the flush toilet, and the flange at the end of the water supply pipe A microbubble generating pipe line structure comprising: the microbubble generator according to claim 3 which is stopped and sealed between the water supply pipe and the cylinder by the O-ring. A microbubble generator that generates microbubbles from a gas-dissolved liquid,
A joint pipe that is screwed between ends of a liquid feeding pipe that flows the liquid to a liquid feeding place and has a second internal thread inside, and is screwed to the second internal thread on the outer periphery of one end. And a cylinder provided with a microbubble generating path for generating a microbubble through the liquid by providing a flange at an end on the screw part side and including the threaded portion, and the first pipe between the joint pipe and the cylinder. A microbubble generator characterized in that sealing is performed by screwing between two inner thread portions and a thread portion. A pipe structure for supplying a microbubble mixed liquid to a liquid receiving place,
A liquid feed pipe for flowing liquid to a liquid feed place, and the joint pipe is screwed between end portions of the liquid feed pipe, and between the joint pipe and the cylinder, the second internal thread portion and the screw portion 6. A microbubble generator pipe structure according to claim 5, wherein the microbubble generator is sealed by screwing. The microbubble generation path includes a first channel whose inner diameter gradually narrows from the liquid inlet side end toward the center, a second channel connected to the first channel, and a second channel A microchannel according to any one of claims 1, 3, and 5, wherein the microchannel is connected to a third flow path having an inner diameter gradually expanding toward the other outlet side of the liquid. Bubble generator. The microbubble generation pipe line structure according to claim 2 or 6, wherein the liquid in which the gas is dissolved is tap water in which air is naturally dissolved. The microbubble generating pipe line structure according to claim 8, wherein the liquid-sending place is inside a washing machine or inside a dishwasher. A washing machine comprising the microbubble generating conduit structure according to claim 9. A dishwasher comprising the microbubble conduit structure according to claim 9. The microbubble generating pipe line structure according to claim 2 or 6, wherein the liquid is a liquid fuel, and the liquid feeding place is inside an internal combustion engine. An automobile comprising the microbubble generating conduit structure according to claim 12.

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