JPH0773593B2 - Micro bubble carbonated spring manufacturing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is a method in which a gas is dissolved under pressure in a liquid, and the liquid is depressurized to generate fine bubbles, and carbon dioxide is added as a gas to water which is a liquid. The present invention relates to a fine bubble carbonated spring manufacturing apparatus capable of manufacturing a carbonated spring by melting under pressure.

[Prior Art] Conventionally, when a carbonated spring is manufactured, a tablet (sodium hydrogen carbonate and citric acid, etc.) that chemically generates carbon dioxide is placed in bath water in the bathtub, and carbon dioxide in the bathtub is used. There were things such as bubbling and dissolving it in the bath water inside, but when trying to make a high-concentration carbonated spring, it was necessary to put a large amount of tablets with the former chemical substance method, and there was a cost problem. It was Also, with this method, the carbon dioxide that could not be dissolved in the bath water escaped from the water surface as bubbles gradually, and the concentration could only be increased to a certain degree. There was a danger of suffocation due to the high concentration of carbon dioxide inside.

Even in the latter method, the concentration can be increased to some extent by bubbling over time, but the concentration cannot be increased further. The amount that escapes is greater than the amount that dissolves, which is economically problematic.As with the former case, the concentration becomes high and the water escapes from the surface of the bath water. There was a risk of suffocation.

Therefore, as a method for dissolving carbon dioxide under pressure in bath water, there is a method as shown in FIG. This one is
A pipe line 4 is formed between the suction port 2 and the discharge port 3 provided in the bathtub 10, and the suction port 2 is provided by a pressurizing pump 11 provided in the pipe line 4.
Carbon dioxide is supplied from the supply pipe 20 to the bath water 1a in the pipe 4 that has been sucked in to dissolve the carbon dioxide in the bath water 1a, and the carbon dioxide spring is again jetted from the discharge port 3 into the bath 10. Is. This device will be described in detail. When the pressurizing pump 11 is turned on, the bath water 1a as the liquid 1 in the bath 10 is sucked from the suction port 2 provided in the bath 10 through the pipe line 4. Reference numeral 20 is a supply pipe line for supplying gas such as carbon dioxide and air communicated with the pipe line 4. Then, at the same time when the pressurizing pump 11 is switched on, the supply pipe 20 becomes negative pressure in the gas-liquid mixing section 12 due to the flow velocity due to the suction of the bath water 1a that is the liquid 1, so that the gas passes through the supply pipe 20. It is sucked into the conduit 4 and mixed with the bath water 1a in the conduit 4. The liquid 1 in which the gas is mixed in the gas-liquid mixing section 12 is pressurized by the pressure pump 11 and the gas is dissolved in the liquid 1. At this time, in order to increase the dissolution efficiency in the pressure pump 11, it is necessary to supply an excessive amount of gas with respect to the amount of gas actually dissolved in the liquid 1, and even if the pressure pump 11 pressurizes a large amount. There are undissolved gases. for that reason,
An accumulator 6 is provided in the pipe line 4 located below the water of the pressurizing pump 11, and an excess gas (undissolved gas) is separated by the accumulator 6 and exhausted from the exhaust throttle valve 6a. At this time, a small amount of water is discharged from the exhaust throttle valve 6a together with the exhaust. The exhaust throttle valve 6a adjusts the exhaust amount while keeping the pressure of the accumulator 6 constant. Then, the liquid 1 in which the gas in which the surplus gas is not mixed is dissolved is ejected as a carbonated spring into the bath 10 through the discharge port 3. In this case, 100% carbon dioxide may be used as the gas, but when 100% carbon dioxide is decompressed and ejected, some of it becomes large bubbles and escapes into the air. A fine bubble carbonated spring can be obtained by supplying a mixed gas in which air is mixed.

[Problems to be Solved by the Invention] However, in the case of producing a fine bubble carbonated spring by the method as described above,
It is extremely difficult to mix carbon dioxide and air and continuously supply a gas of a certain concentration, because the amount of gas suction changes with changes in negative suction pressure and gas supply pressure. It was difficult to stably and continuously supply the gas.

The present invention is intended to solve the above problems, and an object of the present invention is to provide a fine bubble carbonated spring production apparatus capable of continuously mixing gas air and carbon dioxide at a constant ratio and continuously supplying the mixture. To provide.

[Means for Solving the Problem] In order to achieve the above object, the apparatus for producing a fine bubble carbonated spring according to the present invention dissolves a gas in a liquid by mixing and pressurizing the gas and the liquid, and depressurizes the liquid again. A fine bubble generating device for depositing fine bubbles by means of which a suction port 2 for sucking the liquid and a discharge port 3 for discharging the liquid are provided.
A supply unit 5 for supplying carbon dioxide and air which is a gas is provided in a pipe line 4 provided between the accumulator 6 and the supply unit 5, and an accumulator 6 is provided below the supply unit 5 provided in the pipe line 4. In a fine bubble carbonated spring manufacturing apparatus having a pressurizing pump 11 provided between a supply unit 5 and a supply unit 5, a gas is supplied to a carbon dioxide supply pipe 5a for supplying carbon dioxide and an air supply pipe 5b for supplying air. Device for adjusting the supply amount of
5a 'and 5b' are provided.

Further, a supply pipe for supplying carbon dioxide and air is connected to a pipe line 4 through which the liquid passes, and this supply pipe is constituted by one gas supply pipe 7, and the gas supply pipe 7 is led out from an accumulator 6. The exhaust pipe 6a may be connected.

[Operation] Gas is mixed with the liquid in the supply unit 5. Carbon dioxide supply pipe 5a and air supply pipe 5b are used as the gas supplied to the liquid here.
Not only carbon dioxide but also air is supplied via and carbon dioxide is dissolved under pressure in the liquid together with air. Mixing of air and carbon dioxide is carried out by the valve devices 5a 'and 5b' attached to the carbon dioxide supply pipe 5a and the air supply pipe 5b, respectively, and the desired concentration can be obtained by alternately opening and closing or switching at regular intervals. Continuously supplied.

Further, by sending the undissolved gas from the accumulator 6 to the gas supply pipe 7 through the exhaust pipe 6a and recycling it, a certain amount of gas is always present in the gas supply pipe 7, so that the gas is replenished. Even if the valve devices 5a 'and 5b' are opened and closed, the amount of gas in the gas supply pipe 7 and the carbon dioxide concentration change are small, so that stable supply can be achieved.

[Examples] The present invention will be described in detail below based on illustrated examples.

The illustrated embodiment shows an embodiment in which a fine bubble carbonated spring is jetted into the bathtub 10. 10 is a bathtub, and the inner wall of the bathtub 10 is the liquid 1 that is the bathwater in the bathtub 10.
A suction port 2 for sucking 1a is provided, and the bath water 1a sucked from the suction port 2 is ejected from the discharge port 3. Reference numeral 4 denotes a pipe line that is provided between the suction port 2 and the discharge port 3. The pipe line 4 sucks the bath water 1a in the bathtub 10 from the suction port 2 and ejects it from the discharge port 3. A pressurizing pump 11 capable of operating is arranged. The conduit 4 located between the pressurizing pump 11 and the suction port 2 is provided with a supply unit 5 for supplying carbon dioxide as a gas and air. This supply unit 5 is composed of a carbon dioxide supply pipe 5a to which carbon dioxide is supplied and an air supply pipe 5b to which air is supplied, and each is connected to a gas supply pipe 7, and the gas supply pipe 7 is Liquid mixing section 12
It is connected to the conduit 4 via. Valve devices 5a 'and 5b' for adjusting the amount of gas sent to the gas supply pipe 7 are attached to the carbon dioxide supply pipe 5a and the air supply pipe 5b, respectively. The valve devices 5a 'and 5b' are electromagnetic valves whose opening and closing are controlled by the timer 8. A carbon dioxide tank 9 is connected to a tip of a carbon dioxide supply pipe 5a to which a valve device 5a 'is attached via a pressure reducing valve 5a ". 8 is a timer for controlling opening / closing of each valve device 5a', 5b '. By opening and closing the valve devices 5a ', 5b' via the timer 8, carbon dioxide or air can be supplied to the gas supply pipe 7 while adjusting the supply amount. It is an accumulator installed in the pipe line 4 located under the water of the pressure pump 11.

Then, when the pressurizing pump 11 is turned on, the bath water 1a in the bath 10 which is the liquid 1 is sucked into the conduit 4 through the suction port 2. At this time, either of the valve devices 5a ′ and 5b ′ provided on the carbon dioxide supply pipe 5a and the air supply pipe 5b is opened in association with the switching on of the pressurizing pump 11. At this time, both valve devices 5a 'and 5b' are not opened at the same time. This is because if both solenoid valves are opened at the same time, the negative pressure changes greatly during suction, making it difficult to maintain a constant amount of carbon dioxide and air suction. To do. Then, by alternately opening and closing each solenoid valve, the negative pressure is kept constant and the supply amount of gas can inhale substantially constant amounts of carbon dioxide and air. After that, the setting of the suction time is changed by the timer 8. Carbon dioxide of any concentration can be supplied by itself. Then, at the flow velocity of the liquid 1, the carbon dioxide supply pipe 5a and the air supply pipe 5b have a negative pressure than the pipe line 4, and the ejector effect sucks air and carbon dioxide from the supply unit 5 into the pipe line 4 and the bath water 1a.
Is mixed with and pressurized by the pressure pump 11, and carbon dioxide and air are dissolved under pressure in the bath water 1a. At this time, pressurizing pump
In order to increase the dissolution efficiency of air and carbon dioxide by 11, it is necessary to supply an excess amount of gas relative to the amount of gas that actually dissolves. Gas is present. Therefore, the surplus gas is separated by the accumulator 6 and is discharged from the throttle valve 6b connected to the accumulator 6, and at the same time, a small amount of water is also discharged. At this time, the throttle valve 6b adjusts the amount of exhaust gas so that the pressure in the accumulator 6 is not significantly reduced. That is, the bath water 1a in which air and carbon dioxide are dissolved passes through the pipe line 4 while maintaining the pressurized state, and the discharge port 3a.
While passing through the accumulator 6 in the middle of this, the accumulator 6 not only has the general function of absorbing the pulsation of the bath water 1a and the impact pressure, but also has a pressure pump. While accelerating the dissolution of air and carbon dioxide that could not be completely dissolved by the pressurization in 11, the surplus gas mixed in the bath water 1a without being dissolved is floated above the accumulator 6 and the bath water 1a It acts to separate the excess gas from the. The bath water 1a that has passed through the accumulator 6 is in a state in which air and carbon dioxide, which are gases, are dissolved in a high concentration, and the bath water 1a in which the gas is dissolved in the high concentration is again discharged from the discharge port 3 into the bath 10 It is what is ejected inside. Then, when the bath water 1a in which the gas is dissolved is jetted into the bathtub 10 from the discharge port 3, the pressure of the bath water 1a is released from the pressurized state all at once, and therefore the bath water 1a is released.
The air that was dissolved inside will precipitate out and become fine air bubbles.
It will occur in the bath water 1a in 10. Then, carbon dioxide is mixed with these fine bubbles, and when the pressure-dissolved carbon dioxide is conventionally decompressed, it is prevented from becoming large bubbles and rapidly rising toward the water surface. It floats in the bath water 1a along with the slow-moving fine bubbles and can be redissolved with high efficiency by utilizing a large gas-liquid contact area of the fine bubbles.

Regarding the supply ratio of air and carbon dioxide, the more air, the more fine bubbles will be generated, and the more carbon dioxide, the less precipitation of fine bubbles will occur, and therefore the degree of turbidity due to fine bubbles will become smaller. Further, when a large amount of carbon dioxide is supplied, large bubbles are deposited, so the ratio may be adjusted according to the purpose and application.

FIG. 2 shows another embodiment of the present invention. In the embodiment shown in FIG. 1, the exhaust gas from the accumulator 6 and a small amount of water are discharged into the atmosphere through the throttle valve 6b, but in the embodiment shown in FIG. The throttle valve 6b and the gas supply pipe 7 are connected by the exhaust pipe 6a in the mixing section 13 so that the exhaust gas flows into the gas supply pipe 7. By connecting in this way, a certain amount of gas is always consumed in the gas supply pipe 7 while the supplied gas is consumed, and it is possible to supply the gas to the pipe line 4 in the gas-liquid mixing section 12. The pressure fluctuation during gas supply is small, and stable pressure dissolution is always possible. In addition, the gas can be supplied only by replenishing the amount consumed by the pressure dissolution, and the replenishment can be performed by intermittent injection. Therefore, the number of times the solenoid valve is opened and closed can be reduced, and the life (durability) of the solenoid valve can be extended. Also, since there is no exhaust or drainage, there is no exhaust noise or drainage noise, and there is no need to install drainage pipes, etc., and it can be installed anywhere. In addition, when a gas such as expensive carbon dioxide gas other than air is dissolved under pressure, there is no need to discard the gas that cannot be completely dissolved, and 100% utilization is possible, which is economical.

[Advantages of the Invention] As described above, according to the present invention, a carbon dioxide supply pipe for supplying carbon dioxide and an air supply pipe for supplying air are provided with valve devices for adjusting the supply amounts of gas, respectively. By alternately opening and closing each valve device or arbitrarily setting the opening and closing time of each valve device, it is possible to easily and stably supply a gas having an arbitrary concentration, continuously. It is possible to continuously and stably produce a fine bubble carbonated spring.

Further, according to the second aspect of the present invention, a supply pipe for supplying carbon dioxide and air is connected to a pipe line through which the liquid passes, and the supply pipe is constituted by one gas supply pipe. Since the exhaust pipe led from the accumulator is connected to the pipe, the undissolved gas generated in the accumulator can be sent to the gas supply pipe through the exhaust pipe for recycling, and a certain amount of gas is always in the gas supply pipe. Therefore, it is only necessary to supply the gas in the amount consumed, so that the supply amount can be kept low, the pressure fluctuation during supply can be minimized, and the stable supply of fine bubble carbonated springs becomes possible. . In addition, since there is no exhaust or drainage, there is no drainage noise or exhaust noise, which reduces noise and eliminates the need for piping for drainage. In addition, since the gas is used for melting without being discarded, even if an expensive gas other than air is used, there is no waste and it is economical.

[Brief description of drawings]

FIG. 1 is a system diagram of an embodiment of the present invention, FIG. 2 is a system diagram of another embodiment of the above, FIG. 3 is a system diagram of a conventional example, 4 is a pipeline, 5a is carbon dioxide A supply pipe, 5b is an air supply pipe, 5a 'is a valve device, 5b' is a valve device, 6 is an accumulator, 6a is an exhaust pipe, and 7 is a gas supply pipe.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-1-176426 (JP, A) Actually opened 63-38523 (JP, U) Actually opened 61-142037 (JP, U) Actually opened 60- 102020 (JP, U)

Claims (2)

[Claims] 1. A fine bubble generator for mixing fine gas with a liquid by pressurizing the liquid to dissolve the gas in the liquid, and depressurizing the liquid again to deposit fine bubbles. A supply unit for supplying carbon dioxide and air which is a gas is provided in a pipe line provided between a discharge port for discharging a liquid, an accumulator is provided below the supply unit provided in the pipe line, and an accumulator is provided. In a fine bubble carbonated spring manufacturing apparatus having a pressurizing pump provided between a supply unit and a supply unit, the supply amount of gas is respectively supplied to a carbon dioxide supply pipe for supplying carbon dioxide and an air supply pipe for supplying air. A fine bubble carbonated spring manufacturing device equipped with a valve device for adjustment. 2. A supply pipe for supplying carbon dioxide and air is connected to a pipe through which a liquid passes, and the supply pipe is constituted by a single gas supply pipe, and the exhaust gas led out from an accumulator to the gas supply pipe. The device for producing fine bubble carbonated spring according to claim 1, characterized in that a pipe is connected.