JPH0148464B2 - - Google Patents

Description

[Detailed description of the invention]

In this explanation, an example will be shown in which the liquid is replaced with water and the gas is replaced with air or oxygen. The present invention utilizes the pressure of high-pressure water obtained from tap water, a pump, or a head to generate high-speed jet water, and uses that force to efficiently circulate surrounding water and at the same time generate air bubbles and oxygen. It mixes gas bubbles, and has a simple structure with no protrusions or moving parts, so it does not break down or get dirty. Furthermore, gas is dissolved in the liquid, which not only prevents water from spoiling, but also the ultrasonic waves generated when air bubbles appear and disappear, which has a cleaning effect that stimulates the skin and has skin beauty and medical effects. It has side effects. Examples of circulation devices are shown in the drawings of FIGS. 1, 2, and 6. One end of a liquid nozzle 1 with a very small pore diameter with a thinly constricted tip is connected via a hose or pipe 4 to an outlet 5 of tap water, high-pressure pump water, or pressure water obtained by a head, and high-pressure water is supplied to the liquid nozzle. 1
When passed through the tip, a small amount of high-speed jet water will spray out from the tip. According to Bernoulli's theorem, the area around this high-speed jet water exhibits a negative pressure, so there is an annular gas nozzle 2 that opens to surround this high-speed jet water, or one or more gas nozzles are installed near the high-speed jet water. When a gas suction port such as a nozzle 3 is provided, and one end of the gas suction port is connected to a gas intake port 6 via a ventilation pipe 17, air or a gas such as oxygen is sucked from there. This gas becomes fine bubbles and moves through the water with the high-speed jet water.
Along with this, a large amount of surrounding water can be moved, and at the same time, gas is dissolved in the water. When the entire nozzle is attached and integrated to the guide tube 11 with its center line generally parallel, it becomes a forced water circulation device. If this nozzle is directed upward, the effect will be greater due to the floating effect of the bubbles. Furthermore, as shown in Fig. 6, when the gas nozzle 3 is placed inside the liquid nozzle 1, the liquid nozzle 1 has a thinly constricted annular shape, so high-speed jet water is ejected in a cylindrical shape. It is possible to efficiently suck gas from the gas nozzle 3 surrounded by the jet water and surrounding water from the outside of the jet water, mix the water and gas, move them, and transport and circulate them. This method uses the apparatus shown in FIG.
This is equivalent to flowing water through the air and opening one end of the liquid nozzle 1 into the gas. Here, it is necessary for the liquid nozzle 1 to eject water at high speed at its tip, and for this purpose, the diameter in the middle is made thicker so as to reduce the pressure loss in front of the nozzle 1, and the tip of the nozzle 1 It is preferable to have a narrow structure with a smooth curve so as not to disturb the flow. The shape of the opening at the tip of the nozzle 1 can be any shape such as round, oval, polygon, rectangle, etc., but in particular it has a round shape with a small hole diameter or a slit-like thin and wide opening with a small cross section. The liquid nozzle 1 has a large specific surface area of the jet water flow, and is efficient in that the circulation flow rate of water per unit amount of jet water is large. Although the cross-sectional shape of the guide tube 11 on the outside of the liquid nozzle 1 may be different from the shape of the opening of the liquid nozzle 1, it is preferable that the cross-sectional shape be close to a similar shape. That is, it is preferable that the distance between the edge of the opening of the liquid nozzle 1 and the inside of the guide tube 11 located outside the edge be approximately equal throughout the circumference. By bending a slit-shaped opening and connecting its two ends, an annular nozzle is constructed, and the device shown in FIG. 6 is one such device. FIG. 6 shows an example in which one end of the guide tube 11 is bent downward to move a large amount of water located below from below to near the upper surface layer. Next, the effects of the embodiment will be described in detail. In Figure 1, the diameter of the hole at the tip is made smaller (for example,
An annular gas nozzle 2 (0.7 mm diameter in this example) is installed at the end of the constricted liquid nozzle 1 with its axes being the same, and a gas annular nozzle 2 (0.7 mm diameter in this example) is installed at the end of the constricted liquid nozzle 1. slits are now formed. Then, around the outside thereof, there is a large diameter approximately parallel to the central axis of the liquid nozzle 1 (40 mm diameter in this example).
A guide tube 11 was placed to integrate the two nozzles. When tap water is poured through this liquid nozzle 1, the tap water is
Restricted by the small pore diameter of 0.5 mm, only 0.3 liters per minute flows without being affected by tap water pressure or faucet opening, but water spouts out as a jet at a high speed of approximately 25 m/s. Then, for the reason mentioned above, air was sucked in from the annular gas nozzle 2, formed minute bubbles, and mixed with water, causing the water in the guide tube 11 to flow at a rate of about 40 cm/sec. This means that 30 liters of water is moving every minute, meaning that the amount of water being transported has been amplified approximately 100 times. A characteristic feature of this process is that a large amount of air is dissolved in the water. In this example, the amount of air sucked in was 0.2 to 0.3 liters per minute, which was approximately the same volume as the jet water jetted from the liquid nozzle 1. If the source pressure of jet water is high, a larger amount of air can be sucked in and dissolved.
Furthermore, water amplified 100 times within this guide tube 11 slowly flows out from the outlet of the guide tube 11 (at a rate of 40 cm/sec).
When the water flows out, it also moves the water surrounding the outlet, which moves several times as much water. Moreover, the air sucked in becomes minute bubbles that float up and stir the water above, so that in the end, more than 1,000 times more water than the amount of jet water ejected from the liquid nozzle 1 is moved. Such an amplification effect occurs because the nozzle cross-sectional area of the liquid nozzle 1 is 1/6400 (0.5 ² /40 ² ) smaller than the inner cross-sectional area of the guide tube 11.
Although a small amount of high-speed fluid does not have the power to lift water like a pump, it is possible to move and circulate a large amount of fluid 100 to 1,000 times more slowly. What is conventionally known as a jet water pump is
The ratio of the cross-sectional area of the liquid nozzle 1 to the cross-sectional area of the throat is in the range of 0.1 to 0.9, and in that case, the water transport magnification is 4 to 5 times as large. Figure 7A shows these areas of prior art extracted from the Mechanical Engineering Handbook. In the technology of the present application, the ratio between the cross-sectional area A ₁ of the liquid nozzle 1 and the cross-sectional area A ₂ of the guide tube 11 is an order of magnitude smaller,
As shown in FIG. 7B, an area unknown in the past is utilized. Therefore, the water transport magnification is 100 to 1,000 times or more, and in other words, a very small amount (several hundredths) of high-speed water is sufficient to circulate a large amount of water. When this very small amount of water is ejected into the water, approximately the same amount of air is sucked in from the gas suction port of the gas annular nozzle 2 or gas nozzle 3 nearby, which turns into minute bubbles and generates a large amount of air. An important new technology of the present technology is that the bubbles are diffused into the water together with the water that is moved and circulated, and the floating effect of the bubbles further promotes the agitation and circulation of the water. Next, an example in which this device is applied to a general outer pot type bathtub will be explained with reference to FIGS. 3 and 8.
Attach a guide pipe 11 that integrates a liquid nozzle 1 and a gas suction port to a connecting pipe 9 or 10 of the bath,
When high-pressure water flows through the pipe 4, jet water is ejected from the tip of the liquid nozzle 1 and the annular gas nozzle 2.
Alternatively, the water in the guide tube 11 is strongly moved by minute bubbles generated by suction from the gas suction port of the gas nozzle 3, etc., and the heated hot water in the pot 8 moves into the bathtub 7. Cold water at the bottom of the bathtub is supplied into the pot 8 and can be forced to circulate within the bathtub 7 and heater 8. As shown in FIG. 8, when the guide tube 11, which is a combination of the liquid nozzle 1 and the gas annular nozzle 2, is attached to the connecting tube 9 in a downward direction, the hot water heated in the pot 8 reaches the bottom of the bathtub 7. As mentioned above, the effect of the air bubbles floating along with the surrounding water moves more than 1,000 times the amount of jet water and stirs the entire bathtub, making the temperature of the hot water more uniform. Providing a freely bendable flexible tube 20 as part of the guide tube 11 allows the direction of the heated hot water and air bubbles to be changed arbitrarily, which is convenient for purposes such as chasing. As shown in Figure 5, the bath heated in this manner has a completely uniform temperature within the bath, and there is no need to stir the bath, and there is no fear of burns.
When using this circulation device while taking a bath, the heated water quickly flows into the bathtub, which not only heats it up quickly, but also causes bubbles to form in the bath and coagulate. The ultrasonic waves emitted when they burst stimulate the skin, which has beauty and medical effects such as warming the skin, removing dirt, and revitalizing the skin. The effect of ultrasonic waves can be similarly utilized by removing the guide tube 11 from the connecting tube 9 or 10 and using it underwater, or by spraying high-speed jet water from the air into the water. The effect is even more remarkable when the bubbles are applied to the skin. In addition, when jet water is flowing from the liquid nozzle 1, bubbles are always generated and the bubbles burst on the surface, making a small sound, so you can clearly tell that it is functioning, but you forget to close the high-pressure water outlet (faucet) 5. It's incredibly convenient. In addition, due to the continuous rise of fine air bubbles, dirt such as dirt and hair in the bathtub quickly floats and collects on the floating surface, making it easy to remove and not only keeping the hot water clean, but also allowing clean hot water to flow quickly into the pot. Since it circulates, there is less dirt in the pot and the heat transfer efficiency increases, so the thermal efficiency is maintained at a high level (Table 1). As shown in FIGS. 4 and 9, the liquid nozzle 1 and the gas annular nozzle 2 or the gas nozzle 3 are assembled into either the connecting pipe 9 or 10, and the pipe 4 and the vent pipe 17 are connected to each other. Thermal efficiency can be further increased by preheating either or both of them using the exhaust heat of the heater 8 or the exhaust gas pipe 19 (Table 1).
This is because the pressure water flowing through the pipe 4 has a high flow rate.
This is because the specific surface area is large and the heat transfer heating efficiency is sufficiently high even with waste heat.

[Table] Furthermore, by interlocking the high-pressure water on-off valve 14 and the fuel on-off valve 15 for the heater burner 18, heating and circulation can be performed simultaneously, which is convenient. At this time, if the high-pressure water on-off valve 14 is closed a certain amount of time after the fuel on-off valve 15 is closed using a timer 16 or a temperature-sensitive sensor, the hot water remaining in the heater can also be effectively used. . Furthermore, it is more convenient to open and close the fuel on-off valve 15 based on a signal from a temperature sensor of hot water in the bathtub. The above effects are summarized in Table 1,
b - High-speed jet water - refers to the case where there is no annular gas nozzle 2 or gas nozzle 3 in Figures 1, 2, and 6, and therefore no bubbles are generated and only water circulates. be. On the other hand, as shown in c and d of Table 1, the technology of the present invention clearly has the effect of improving thermal efficiency and making temperature uniform. In recent years, water circulation in reservoirs, aquaculture waters, closed waters such as lakes and bays, and stagnant rivers has been poor, and the water has become eutrophic and polluted due to the influx of domestic wastewater, fish feed, excrement, etc. It is becoming rotten and no longer useful for drinking or aquaculture. An example in which this device is used as a water purification device for these water areas will be explained. The circulation device shown in Figures 1 and 6 is placed near the underwater surface of the body of water to be purified. As shown in FIG. 10, the gas intake port 6 is exposed to the air, and the guide tube 11
The lower end of the reflux pipe 21 connected to the water area is located near the bottom of the water area. On the other hand, a water intake port 23 is provided in a river basin or water source pond located at a high position near the water area, and the lower end of the pipe 22 laid to the water area is connected to the high-pressure water outlet 5.
It is connected to one end of a water pipe 4 via a. In this way, the water intake port 23 is placed at the tip of the liquid nozzle 1.
A water pressure equivalent to the head difference between the water surface and the water surface acts,
Due to this water pressure, water from the water source is jetted from the tip of the liquid nozzle 1 into the water area as a jet stream.
Due to this jet stream, more than 100 times as much water flows through the guide pipe 11 as described above, so a large amount of rotten water at the bottom is quietly and continuously sucked up and circulated through the downwardly connected reflux pipe 21, and at the same time, the gas nozzle 3, the air forms bubbles and dissolves in the putrid water, oxidizing it and purifying it. Furthermore, since this device uses water flowing into a closed water system, one of its features is that it does not have any adverse effects on the ecosystem within or around the water body.Examples will now be described. An area of 1 km x 0.5 that is severely decayed and unused.
The aquaculture pond (water volume: 10 ⁷ m ³ ), which is 20 m in length and 20 m in depth, is surrounded by mountains, and the rainwater area that flows into this pond is approximately 3 km x 2 km, and the annual rainfall is 2000 mm. In other words, the total amount of rainwater per year is 1.2×10 ⁷ m ³ . There are four streams that flow into this aquaculture pond, one of which receives about one-hundredth of the total rainwater (10 ⁵ m ³ ). This stream was dammed at a position 50 meters higher than the water level of the aquaculture pond, and this was designated as water intake port 23. The circulation device used here has the structure shown in FIGS. 6 and 10, and the liquid nozzle 1 is an annular slit nozzle with an outer diameter of 16 mm and an inner diameter of 11 mm. There is a gas nozzle 3 with a diameter of 9 mm in the center. The guide tube 11 is made of a pipe with a diameter of 1 m, and is fixed to the float at a depth of about 1 m below the water surface so as to remain substantially horizontal, and the gas intake port 6 is open above the water surface. The lower end of the reflux pipe 21 was positioned approximately 2 m above the bottom of the pond. Said water intake 2
3 and the water pipe 4 of this device are connected by a pipe 22 with a diameter of 10 cm, a water head pressure of 50 m is applied, and water is ejected from the liquid nozzle 1 at a rate of about 30 m/sec. The amount of water ejected is approximately 10 ⁵ m ³ per year, and the air sucked in is approximately the same volume as described above, which is approximately 10 ^{5 m} 3 per year.
It was ^m3 . The sucked air becomes bubbles with a diameter of around 1 mm, so the surface area is enormous, 6 x 10 ⁸ m ² , and the surface area of this aquaculture pond is 5 x 10 ⁵ m ^2.
This is equivalent to more than 1,000 times the amount of Furthermore, as the microbubbles move through the water and float to the surface, the interface between the bubbles and the water is violently agitated, and the air is efficiently dissolved into the water. At this time, the water flowing through the guide pipe 11 is 40 cm per second, and the annual flow rate is 40 cm per second.
equivalent to 10 ⁷ m ³ and amplified 100 times. This amount of circulating water
10 ⁷ m ³ is equivalent to the total water volume of the aquaculture pond, and the water in the entire pond was circulated and replaced once in a year, and the putrid water was completely purified by dissolving a large amount of air. This effect began to appear after about half a year, and after a year, the odor disappeared and the water became usable as drinking water. 10th
In the figure, if the direction of the guide tube 11 and the liquid nozzle 1 is slightly downward, the stay time of the bubbles in the liquid will be longer and the effect will be greater. FIG. 11 shows a case where the liquid nozzle 1 is directed upward, and the effect of circulation is large due to the buoyancy force of the bubbles. It has been found that when a similar small device is connected to a tap water faucet and used in a home pond or aquarium, air dissolves smoothly into the water, which has a very positive effect on the habitat of fish and shellfish. For this purpose, there are devices such as submersible pumps that pump water into the air and dissolve the air, but they use electricity, there is a risk of electric shock, and they may not be usable in quiet places, especially at night, due to noise. , etc. have drawbacks. This device not only does not have the drawbacks of conventional devices, but also has constant water circulation and air dissolution, which prevents water from spoiling and at the same time ensures that a very small amount of fresh tap water supplied from the liquid nozzle 1 is kept in the pond. This has the effect of automatically replacing water or replenishing water for evaporation loss. If tap water is wasted, the water inside can be guided to a high-pressure pump and ejected from a nozzle for reuse. In addition to the examples described above, this device can also be used to transport and circulate various liquids such as chemicals, so various types of high-pressure liquids may be used as the high-pressure liquid to be flowed into the liquid nozzle 1, and they can be moved and circulated in the same way. Water can be moved and circulated as a fluid such as various liquids or powder or granules. By appropriately selecting the diameter of the guide tube 11, the ratio of liquid, gas, and particles can be set arbitrarily. As a technology similar to the present invention, there is a method that recycles bath water or pond water through a pump, but because it circulates dirty water, it collects dirt, hair, algae in the pond, fish and shellfish, wood chips, and decay. There are problems such as dirt and other objects clogging the pump or nozzle, causing it to malfunction and no longer function properly. The feature of the present invention is that a small amount of jet water is ejected at high speed from small-diameter liquid nozzles 1 and 2 with thinly constricted tips, and the amount of surrounding water is several tens to hundreds of times larger. It circulates and sucks microscopic air bubbles into it. In other words, since a large amount of water within the system can be moved with a very small amount of jet water, the small amount of clean water outside the system can be used without recycling the dirty water within the system.

[Brief explanation of drawings]

Figures 1, 2, and 6 are a front view and a sectional view of the circulation nozzle, Figures 3, 4, 8, and 9 are examples of how the circulation device is used in a bath, and Figure 5 Figure 7 shows the distribution of temperature in the bathtub in the depth direction, demonstrating the effect of using the device of the present invention; Figure 7 shows the relationship between the cross-sectional area ratio of the pipe and the water transport magnification; figure,
FIG. 11 is a diagram showing an embodiment of the present invention in an aquaculture pond. 1...Liquid nozzle, 2...Gas annular nozzle, 3...Gas nozzle, 4...Liquid hose or pipe, 5...High-pressure liquid outlet, 6...Gas intake port, 7... Bathtub, 8... Heater, 9, 10...
... Connecting pipe, 11 ... Guide pipe, 12, 13 ... Water conduit pipe, 14 ... High-pressure liquid on-off valve, 15 ... Fuel on-off valve, 16 ... Timer or temperature sensor, 17
... Ventilation pipe, 18 ... Heater burner, 19 ...
Exhaust gas pipe, 20... Flexible pipe, 21... Circulation pipe, 2
2...Piping, 23...Water intake, 24...Air vent hole.

Claims (1)

[Claims] 1. An annular gas nozzle 2 or a gas nozzle 3 is installed near the tip of the liquid nozzle 1, which has a thinly constricted tip.
A nozzle structure with a holder is placed in a container containing liquid, the nozzles 2 and 3 are connected to a gas intake port 6 that opens into the air or various gases, and the liquid nozzle 1 is placed in a place different from this container. A gas-blown liquid circulation device connected to a source of liquid that produces a high pressure. 2. The circulation device according to claim 1, wherein the liquid nozzle 1 is placed near the center of the guide tube 11 with their center lines substantially parallel, and is integrated with the annular gas nozzle 2 or the gas nozzle 3. . 3 The containers that store the liquid are the melt tank 7 and the connecting pipes 9 and 1.
0 or the heater 8
Circulation device as described in section. 4. The circulation device according to claim 3, wherein the guide pipe 11 can be attached to the connecting pipe 9 or 10. 5. The circulation device according to claim 3, wherein one or both of the liquid pipe 4 and the ventilation pipe 17 are preheated by exhaust heat from the heater 8, the exhaust gas pipe 19, etc. 6 The opening and closing mechanisms of the high-pressure liquid on-off valve 14 and the fuel on-off valve 15 are linked directly or indirectly via a timer or temperature sensor 16,
4. The circulation device according to claim 3, which is adapted to work. 7. The circulation device according to claim 1, wherein the liquid source that generates high pressure is tap water, high-pressure pump water, a water source located at a high place with pressure obtained by a head difference, or the like. 8. The circulation device according to claim 1, wherein the container storing the liquid is a water area such as a lake, swamp, pond, bay, reservoir, river, or aquaculture pond. 9. The circulation device according to claim 2, wherein the guide pipe 11 is connected to the reflux pipe 21.