JPS62191032A - Apparatus for supplying formed water - Google Patents

Abstract

PURPOSE:To make it possible to supply formed water and usual hot water from the same tap, by such a simple structure that a bypass pipe is provided to a hot water supply pipe through a change-over valve and again connecting the same to the supply pipe through a fine air bubble generator. CONSTITUTION:When a change-over valve 6 is changed over to a supply pipe 5, warm water mixed so as to be adjusted to proper temp. by the mixing valve connected to hot water piping 1 and water supply piping 2 is supplied from a spigot 4 as usual warm water containing no air bubbles. When the change-over valve 6 is changed over to the side of a bypass pipe 7, air is dissolved in warm water in a fine air bubble generator 8 while the air dissolved warm water is returned to the supply pipe 5 through a check valve 12 and a pressure reducing nozzle 13 to be supplied from the spigot as foamed water containing fine air bubbles. By this method, foamed water can be simply utilized from the spigot 4 and it is also unnecessary to make piping double and execution cost can be lowered and said foam water can be widely utilized in a bathtub, a sink stand and other factory equipment, etc.

Description

[Detailed description of the invention] 【Technical field】

The present invention relates to a device for supplying foamy water containing microbubbles to bathtubs, sinks, etc.

[Background technology]

As a bubble generator for generating microbubbles, the applicant of the present application previously published Japanese Patent Application No. 112517/1986 in 1988.
The patent application was filed on May 25, 2017, but this type of microbubble generator has a structure in which foamy water containing microbubbles is stored in a tank, so it is difficult to generate bubbles. Since it is not possible to easily and quickly switch between operations, such as stopping the operation and allowing hot water to pass through, it is necessary to install dedicated foam water supply equipment separately from the regular hot water supply equipment, which reduces equipment costs. becomes very large. It was also unreasonable to require duplicate equipment for both facilities. for example,
As shown in FIG. 8, a faucet 4a that supplies normal hot water is provided above the bathtub 9, and a foamy water outlet 4 that supplies foamy water is installed above the bathtub 9.
b was provided at the bottom of the bathtub 9.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned technical background, and its purpose is to provide a foam water supply device equipped with a micro-bubble generator that generates micro-bubbles with a simple structure. The purpose is to be able to supply regular hot water that does not contain water.

[Disclosure of the invention]

The foaming water supply device of the present invention connects a hot water supply pipe 1 and a water supply pipe 2 to a mixing valve 3, connects an E+ single valve 3 and a hot water supply faucet 4 through a supply pipe 5, and connects a switching valve from the supply pipe 5 to a mixing valve 3. 6, a bypass pipe 7 is extended through which the bypass pipe 7 is connected again to the supply pipe 5 via a fine bubble generator 8. Therefore, by changing the mixing ratio at the mixing valve 3, the temperature of the hot water supplied from the faucet 4 can be easily adjusted, and the hot water supply system can be switched to the bypass pipe 7 side using the switching valve 6. By using the mixing valve 3 and the micro bubble generator, you can eliminate water shortages! By discharging the water from the faucet 4 via the water supply pipe 18, the water can be discharged from the faucet 4 as foamy water containing fine air bubbles.If foamy water is not required, the hot water supply system can be connected to the supply pipe 5 by the switching valve 6. By switching to the side, normal hot water containing no air bubbles can be supplied from the faucet 4 while the fine bubble generator 8 is kept in operation. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Figure 11 shows an outline of the system of the present invention, and the second
The figure shows this as Fi4? ! This figure shows the state in which it is installed in No. 19. A water supply pipe 2 directly connected to city water and a hot water supply pipe 1 connected to a heating storage tree etc. are connected to a mixing valve 3, and this mixing valve 3 is installed under the 7 runci 11 of 'Rt Wi 9. A handle 10 of the mixing valve 3 is exposed on the upper surface of the seven lamps 11, and by operating the handle 10, the temperature of the hot water supplied from the faucet 4 can be adjusted as desired. The mixing valve 3 and the faucet 4 provided above the seven runci 11 of the mf'e9 are connected by a supply W5, and the hot water mixed at an appropriate temperature by the mixing valve 3 is supplied to the faucet 4.
The water is supplied into the bathtub 9 from the inside. A switching valve 6 is attached to the supply pipe 5 on the water side of the mixing valve 3, and a bypass pipe 7 is led out from the switching valve 6. In the middle of the bypass pipe 7, minute air bubbles are placed in the hot water. A microbubble generator 8 for dissolution is provided, and the tip of the bypass pipe 7 is connected to the supply pipe 5 again via a check valve 12 and a pressure reducing valve 13. The switching valve 6 is also housed under the seventh flange 11, and the switching handle 14 of the switching valve 6 is also exposed on the upper surface of the seventh flange 11. Further, the micro bubble generator 8 is housed in a space below the seven lunges 11. However, the switching handle 1
If the switching valve 6 is switched to the supply v5 side by the operation in step 4, as described above (the hot water mixed at an appropriate temperature by the mixing valve 3 does not pass through the fine bubble generator 8, it becomes normal hot water without bubbles). On the other hand, when the switching valve 6 is switched to the bypass pipe 7 side, the fine bubbles in the hot water are dissolved in the fine bubble generator 8, and the hot water is turned into foamy water containing fine bubbles. The water is returned to the supply pipe 5 and supplied as foamy water from the faucet 4 into the bath W39.Next, the structure of the fine bubble generator 8 for dissolving fine bubbles in hot water will be explained. As shown in Fig. 3, the gas pipe 19 having a valve 18 in the middle is joined to the bypass pipe 7, and the air sent through the gas pipe 19 and the hot water sent through the bypass pipe 7 are connected to each other. are mixed at the connection point 20 and injected into the pressure pump 15 as a two-phase flow of air and hot water. The air that is dissolved but not dissolved is injected under pressure into the buffer 'JfI 116 together with hot water.In the buffer tank 16, the air that has not been dissolved by the pressure from the pressure pump 15 is injected into the hot water. Thereafter, the hot water in which air has been sufficiently dissolved flows out from the outlet 21 of the buffer 1lff16, passes through the bypass pipe 7, reaches the vacuum nozzle 13, is depressurized, and flows from the vacuum nozzle 13 into the supply W5. Then, when hot water is discharged from the pressure reducing nozzle 13, dissolved air is released from the hot water in the form of fine bubbles.The saturation profile of air dissolved in hot water at a constant temperature is approximately proportional to the pressure. Therefore, by installing the buffer tank 16 between the pressurizing pump 15 and the depressurizing nozzle 13 and sufficiently pressurizing the hot water and air in the buffer [16], the air becomes bubbles. It is possible to increase the amount of dissolved air and increase the amount of air bubbles generated from the decompression nozzle 13 regardless of whether the buff y!1G
Air injected together with hot water through the pressurizing pump 15 is stored in the upper part of the chamber, and an air layer 17 is formed above the liquid M22. In this way, the liquid layer 22
When air W117 is formed above the air, the dissolution rate of the air is approximately proportional to the contact area and contact time between the hot water and the air, so
It has the advantage of accelerating the dissolution rate of air, and can also reduce pressure fluctuations when discharging dense microbubbles from the vacuum/zipper 13, thus continuously supplying microbubbles in a smooth state. It becomes possible. In order to maintain the volume of the air layer 17 at a substantially constant level, it is sufficient to maintain the liquid level of the liquid layer 22 at a constant height. This is possible by controlling the valve 18 of the gas pipe 19. That is, when the liquid level rises, opening the valve 18 to increase the amount of air supplied to the buffer tank 1
Since more gas than can be dissolved in the hot water is fed inside the hot water tank 6, the excess air increases in the air layer 17 and the liquid level decreases. Conversely, if the liquid level drops below a predetermined height, valve 1
8 to reduce the shortness of air supply in the buff 7a tank 16, the air in the air layer 17 inside the buffer tank 16 will be dissolved into the liquid layer 22, so the pressure of the air n417 will increase. decreases, and the liquid level of the liquid layer 22 rises. Thus, the liquid level of the liquid layer 22 is maintained at a constant height. A check valve 12 is provided at the tip of the bypass pipe 7, and the check valve 12 prevents backflow toward the bypass pipe 7 when the supply pipe 5 is directly connected to the water supply and is under high pressure. It is something. In addition, since the buffer tank 16 is under high pressure, the bypass pipe 7 on the water side of the buffer tank 16 is made of high pressure pipe, and the pressure is reduced by the vacuum/zuru 13 to precipitate fine bubbles in the supply pipe 5. It is designed to allow FIG. 4 shows an example of the pressure reducing nozzle 13. That is, an orifice member 25 having an orifice 24 smaller than the inner diameter of the flow path 23 is built into the flow path 23 in the depressurization/glue 13, and the pressurized water sent from the bypass pipe 7 passes through this orifice 24. It is designed to pass through and be depressurized. By passing the pressurized hot water containing dissolved gas through this orifice 24, the flow rate is increased. Next, the pressurized hot water with increased flow velocity collides with the speed reducer 26, where air bubbles are generated. The speed reducer 26 is stopped by a stopper 27 so that it does not fly out. The stopper 27 may be made of any material as long as it allows the pressurized water to pass through and holds the speed reducer 26, but a material in the form of a wire net or the like may be considered. The moderator 26 may be a porous body, a wire mesh, a sintered body, etc., but if there is no moderator 26, pressurized water will come out from the orifice 24 in the form of threads (rods) and the pressure will be rapidly reduced, so microbubbles will not be generated. Although it is difficult to generate, fine bubbles are more likely to occur because the pressurized water dissolving the fast-flowing bubbles from the orifice 24 hits the moderator 2G and is depressurized in two stages through the orifice 8 and the moderator 26. . The microbubbles generated as described above have various characteristics, such as VF characteristics such as a cleaning effect, ultrasonic waves, an increase in oxygen groups, and a reduction in irritation (milderization). In the above embodiment, an example was shown in which the foam water generating device was attached to mm9, but it may also be provided on the sink 28 as shown in FIG. 6, or on the sink 29 as shown in FIG.
It can also be used for other purposes such as factory construction.

【Effect of the invention】

As described above, the present invention connects a hot water supply pipe and a water supply pipe to a mixing valve, connects the mixing valve and a hot water supply faucet through a supply pipe, and extends a bypass pipe from the supply pipe via a switching valve. Since the bypass pipe is reconnected to the supply pipe via the micro bubble generator, the temperature of the hot water supplied from the faucet can be easily adjusted to 11! by changing the mixing ratio at the mixing valve. In addition, by switching the hot water supply system to the bypass pipe side using the switching valve, hot water can be discharged from the faucet through the mixing valve, through the microbubble generator, and foam containing microbubbles can be discharged from the faucet. It can be discharged as water, and if foamy water is not required, the hot water supply system can be switched to the supply pipe side using the switching valve, so that the fine bubble generator can be kept in operation and no bubbles will be released from the faucet. There is an advantage 7e: that it can be supplied as normal hot water. Therefore,
Foaming water can be easily accessed from the faucet, and there is no need to duplicate piping, etc., reducing construction costs.
Since it is sufficient to have only one set of valves and valves, it does not take up a large space in a bathtub or sink.

[Brief explanation of drawings]

Fig. 1 is a schematic diagram showing one embodiment of the present invention, Fig. 2 is a perspective view when the above foam water supply device is installed in a bathtub, f53
The figure is a schematic diagram of the same fine bubble generator as above, FIG. 4 is a sectional view of the same decompression nozzle as above, and FIG. 5 is a perspective view of the same as above speed reducer.
FIG. 6 is a perspective view showing another example of the present invention, FIG. 7 is a perspective view showing still another example of the present invention, and FIG. 8 is a schematic sectional view of a conventional example, where 1 is a hot water supply pipe, 2 is a water supply pipe. Piping, 3 is a mixing valve, 4 is a faucet, 5 is a supply pipe, 6 is a switching valve, 7 is a bypass pipe, and 8 is a fine bubble generator. Figure 1 Figure 2

Claims (1)

[Claims] (1) Connect the hot water supply pipe and the water supply pipe to the mixing valve, connect the mixing valve and the hot water supply faucet with the supply pipe, extend the bypass pipe from the supply pipe via the switching valve, and connect the bypass pipe to the A foam water supply device characterized in that the foam water supply device is connected to a supply pipe via a bubble generator.