JP2007190463A - Gas dissolver and circulation type bathtub apparatus using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a gas dissolver capable of easily producing a large quantity of a carbonated spring in which carbon dioxide of high concentration is dissolved and to provide a circulation type bathtub apparatus using the gas dissolver. <P>SOLUTION: Hot water to be supplied from a pipe 5A hung from the center of the upper surface of a tank 5 for storing hot water is allowed to abut on a plugged part 7A formed by plugging the lower end face of the pipe 5A and discharged in a film-like shape from a discharge port 7B so that film-shaped hot water falls down along the inner wall of the tank 5. As a result, a dissolution rate of carbon dioxide can be improved since carbon dioxide is brought into contact with the front and back surfaces of film-shaped hot water discharged from the discharge port, the surface of hot water when falling down along the inner wall of the tank and the surface of hot water when stored in the tank. The transpiration of carbon dioxide can be prevented since the film-shaped hot water discharged from the discharge port does not collide against the inner wall of the tank and the liquid level of hot water in the tank does not wave high. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a gas dissolver capable of easily and in large quantities producing a hot bath spring in which a gas such as a carbonate spring in which a high-concentration carbon dioxide gas is dissolved, and a circulation bath apparatus using the same.

It is said that a hot spring, especially a carbonated spring, in which gas is dissolved has effects such as heat retention, promotion of circulation and metabolism, relaxation of pain, and relaxation of muscles. Therefore, for example, Patent Document 1 below proposes a bath apparatus that can perform a carbonated bath in a home bathtub without going to a hot spring resort.
JP 2005-198773 A

  In patent document 1, it has a circulation circuit which circulates hot water (henceforth warm hot water and cold water generically) inside and outside a bathtub, and a circulation pump arranged in this circulation circuit, A gas dissolver is provided, and a carbon dioxide supply means is connected to the carbon dioxide dissolver.

  Moreover, about the carbon dioxide gas dissolver of Patent Document 1, it is described that a hollow fiber semipermeable membrane, a static mixer, and a carbonator may be used without particular limitation.

  However, in the so-called circulation type bathtub as in Patent Document 1, carbon dioxide gas could not be efficiently dissolved by using any of a hollow fiber semipermeable membrane, a static mixer, and a carbonator.

  The reason is that, first, even if carbon dioxide is dissolved, it easily evaporates from hot water. Therefore, since the static mixer performs active stirring even if it does not have a drive unit, there is a problem that even if the carbon dioxide gas is dissolved, it will evaporate immediately.

  In addition, when the hot water and carbon dioxide gas are dissolved under high pressure, the carbonator must be hot to a certain extent, so that it is suitable for a mode in which a hot water that is always warm is used. I can't say that.

  Hollow fiber semipermeable membranes need to increase the membrane area or increase the pressure of carbon dioxide gas in order to dissolve high-concentration carbon dioxide efficiently in large quantities. It is known that the rate decreases, and it cannot be said that it is suitable for the embodiment of the circulation type bathtub as described above.

  The problem to be solved by the present invention is that, in a circulating tub for home use, in a carbon dioxide gas dissolver using a static mixer, a carbonator, and a hollow fiber semipermeable membrane, a carbonated spring in which a high concentration of carbon dioxide gas is dissolved can be easily and This is not suitable for mass production.

  In order to solve the above problems, the gas dissolver of the present invention is provided with a liquid supplied from a pipe suspended downward from the center of the upper surface of a tank for storing gas and liquid at a lower tip portion of the pipe. The liquid is discharged in the form of a film from a liquid supply socket having a discharge port formed on the surface facing the inner wall of the tank so as to flow down in contact with the inner wall of the tank.

  Moreover, the circulation type bathtub apparatus using the gas dissolver of the present invention connects one end of each of the hot water feed path and the return path to the bathtub, and connects the other end of each of the feed path and the return path. Connected to the tank of the gas dissolver of the invention to form a hot water circulation path, and in this hot water circulation path, a heater for adjusting the temperature of the hot water and a pump for sending the hot water to the bathtub are arranged, and gas supply to the tank Connected the road.

  Once the carbon dioxide gas is dissolved, it immediately evaporates when the solution is subjected to vibration or impact. In order to increase the dissolution rate, various devices are required in the configuration, and many conditions must be satisfied in the method.

  For the gas dissolver of the present invention, a method similar to a carbonator was selected, which is basically relatively simple in construction and requires few conditions in the method. However, the carbonator simply stops the liquid for a certain period in a tank filled with pressurized carbon dioxide.

  The reason why the liquid is allowed to stand for a certain period in a tank filled with pressurized carbon dioxide gas is that, as described above, even if the carbon dioxide gas dissolves, it will evaporate if it is subjected to vibration or impact on the solution. .

  Therefore, in order to dissolve the carbon dioxide gas, conventionally, it is important that the liquid does not vibrate as much as possible. As a result, the conventional carbonator has a predetermined numerical value because the contact area with the carbon dioxide gas is only the liquid surface. Therefore, improvement in dissolution rate cannot be expected.

  Therefore, the present invention is similar to the carbonator method described above, but has a configuration in which the contact surface with carbon dioxide gas is positively increased, which is fundamentally different from the conventional one. That is, not only the liquid level stored in the tank but also a liquid level different from the liquid level of the stored liquid is discharged from the discharge port of the liquid supply socket in the form of a film. .

  In this way, if the liquid is discharged in the form of a film, in addition to the liquid level of the stored liquid, on the front and back surfaces (upper and lower surfaces) of the film-like liquid level, and the liquid level flowing down along the tank inner wall, Since it can be brought into contact with carbon dioxide gas, the contact area is increased and the dissolution rate is dramatically improved.

  In addition, since the gas dissolver of the present invention is configured to discharge in a film shape so that the liquid contacts the inner wall of the tank, the liquid discharged in the film shape collides with the inner wall of the tank or drops to store the liquid. The state in which the carbon dioxide gas is dissolved can be maintained without causing the liquid level to swell and the dissolved carbon dioxide gas to evaporate.

  Furthermore, since the circulation type bathtub apparatus of the present invention employs the gas dissolver of the present invention described above, a simple configuration in which a gas supply means and a liquid supply socket are separately provided in an existing tank for circulating hot water. Thus, a large amount of carbonated spring in which high concentration carbon dioxide gas is dissolved can be supplied to the bathtub.

  The present invention can be carried out in the form described below with reference to the drawings. In this example, the gas dissolver of the present invention will be described in the circulation-type bathtub apparatus of the present invention that employs this gas dissolver.

  In the figure, 1 is a circulation type bathtub apparatus that circulates hot water (not shown) inside and outside the bathtub, and is configured as follows. S is a feed path that is piped to feed hot water in the bathtub out of the bathtub. R is a return path piped in order to return the hot water sent out of the bathtub into the bathtub. In the circulation type bathtub apparatus 1 of the present invention, a hot water circulation path is formed by the feed path S and the return path R piped between the bathtub and a tank 5 described later.

  The following elements are connected to the transmission path S. 2 is an activation device provided immediately after the outside of the bathtub of the transmission path S. This activation device 2 is for activating hot water discharged from a bathtub using mineral ore and mineral ore-containing ceramics, for example, healthy green stone, but impurities in the hot water may be removed here. . 3 is a pump provided downstream of the activation device 2, and this pump 3 sends hot water in the bathtub to a tank 5 described later.

  A heater 4 adjusts the temperature of hot water flowing through the piping so as to cover the piping of the feeding path S and the piping of the return path R. Reference numeral 5 denotes a tank provided downstream of the heater 4. The configuration around the tank 5 will be described in detail later.

  On the other hand, the following elements are connected to the return path R. 6 is a solenoid valve provided immediately after the extraction side of the tank 5. This electromagnetic valve 6 is for adjusting the amount of hot water returned to the bathtub and is controlled in cooperation with the pump 3. The heater 4 is provided downstream of the electromagnetic valve 6 in the bathtub direction.

  The tank 5 has an upper end connected to the end of the feed path S and a lower side face connected to the start end of the return path R. Further, a drain pipe 5a is connected to the lower surface of the tank 5, and an electromagnetic valve 5b is connected to the drain pipe 5a to control the drainage in the tank 5. Further, the tank 5 is provided with a pressure sensor 5 c for detecting the pressure in the tank 5 and a water level meter 5 d for detecting the amount of hot water in the tank 5.

  The tank 5 is connected to the end of the carbon dioxide supply path G, and the start of the carbon dioxide supply path G is connected to the cylinder B. A regulator Ga and a solenoid valve Gb are connected to the carbon dioxide gas supply path G starting from the cylinder B in order from the starting end toward the tank 5. In the present invention, the gas supply means is constituted by the cylinder B, the regulator Ga, the electromagnetic valve Gb, and the carbon dioxide gas supply path G.

  As shown in FIGS. 2 to 4, a pipe 5 </ b> A is suspended from the center of the upper surface of the tank 5 to the lower part of the tank 5 at a portion where the end of the transmission path S is connected. Reference numeral 7 denotes a liquid supply socket provided at the lower end of the pipe 5A.

  The liquid supply socket 7 includes a closing portion 7A that closes the lower end surface of the pipe 5A, and a discharge port 7B formed in the pipe 5A immediately above the closing portion 7A. The discharge port 7B is formed on the surface facing the inner wall of the tank 5 so as to penetrate the inside and outside of the pipe 5A.

  As shown in FIG. 4, the discharge port 7 </ b> B is formed to discharge the hot water sent from the feed path S into a film shape so as to flow down in contact with the inner wall of the tank 5. As long as hot water can be discharged, the diameter and the number on the peripheral surface are not limited.

  In the present invention, gas is supplied from the tank 5, carbon dioxide supply means (cylinder B, regulator Ga, electromagnetic valve Gb, carbon dioxide supply passage G), pipe 5A, and liquid supply socket 7 (blocking portion 7A, discharge port 7B). A dissolver 11 is configured.

  In the gas dissolver 11 configured as described above, the hot water sent through the feed path S and the pipe 5A hits the closed portion 7A in the liquid supply socket 7, and is then discharged from the discharge port 7B.

  As shown in FIG. 4, the hot water discharged from the discharge port 7B is a radial film and is not orthogonal to the inner wall of the tank 5, but is scattered in a parabolic shape that descends in a direction away from the liquid supply socket 7. It contacts without colliding along the inner wall of the tank 5 and then flows down.

  That is, since the gas dissolver 11 of the present invention is configured to discharge hot water in a film shape so as to flow down in contact with the inner wall of the tank 5, the hot water collides with the inner wall surface of the tank 5. It is possible to prevent transpiration of carbon dioxide gas caused by or due to splashing of droplets at the time of the collision and undulating liquid level of hot water stored in the tank 5.

  Further, the gas dissolver 11 of the present invention includes a front surface and a back surface (upper and lower surfaces) of the film discharged from the discharge port 7B, a flow surface when flowing down the inner wall surface of the tank 5, and a storage surface in the tank 5, Therefore, the dissolution rate can be drastically improved as compared with the conventional case.

  In the circulation type bathtub apparatus 1 of the present invention employing the gas dissolver 11, hot water sucked by the pump 3 from the inside of the bathtub is activated by passing through the activation device 2 in the feed path S, and the heater 4 adjusts the temperature. And sent to the tank 5.

  Note that the heater 4 may have a temperature suitable for bathing the hot water in the feeding path S, but may be controlled to adjust to a suitable temperature that improves the dissolution rate of carbon dioxide gas in the gas dissolver 11, for example. This is because the heater 4 can be used in the return path R if the temperature is adjusted to a temperature suitable for bathing.

  Carbon dioxide gas is already supplied in the tank 5 so as to be in a predetermined pressurized state, and hot water is discharged from the liquid supply socket 7 in the tank 5 as described above, and the carbon dioxide gas is dissolved and stored. It becomes. Thereafter, the hot water is returned from the return path R to the bathtub. At this time, the carbonated spring which is activated by the activation device 2 and is appropriately set to the set temperature by the heater 4 in the return path R and in which the high-concentration carbon dioxide gas is dissolved is returned to the bathtub.

  In the circulation type bathtub apparatus 1 of the present invention, since a large amount of carbon dioxide gas is expected to evaporate in the bathtub, a sensor and a warning device that detect the carbon dioxide concentration in the bathtub and warn when the dangerous concentration is reached. A ventilation device may be added.

  Moreover, although the example which melt | dissolves a carbon dioxide gas especially is shown in the above, as a gas, you may melt | dissolve, for example, hydrogen sulfide gas, sulfurous acid gas, tron gas, and radon gas which are warm bath spring elements. Even in such a case, if the sensor, the warning device, and the ventilation device are added to the bathtub, it can be used safely.

It is a flowchart which shows the schematic structure of the circulation type bathtub apparatus of this invention which employ | adopted the gas dissolver of this invention. It is a figure which shows the tank periphery in the gas dissolver of this invention. It is a figure which shows the liquid supply socket in the gas dissolver of this invention. It is a figure which shows the carbon dioxide melt | dissolution condition by the gas dissolver of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Circulation-type bathtub apparatus 3 Pump 4 Heater 5 Tank 5A Pipe 7 Liquid supply socket 7A Blocking part 7B Discharge port 11 Gas dissolver S Transmission path R Return path G Carbon dioxide supply path

Claims (2)

  A gas dissolver that dissolves gas into liquid in a pressurized tank, gas supply means for supplying gas to the tank at a predetermined pressure, and a liquid that is suspended from the center of the upper surface of the tank to the inside and below. The liquid is discharged in the form of a film so as to flow down in contact with the inner wall of the tank from a discharge port formed in the surface opposite to the inner wall of the tank. And a liquid supply socket. One end of each of the hot water feed path and the return path is connected to the bathtub, and the other end of each of the feed path and the return path is connected to the tank of the gas dissolver according to claim 1 to form a hot water circulation path. A circulating bath apparatus characterized in that a heater for adjusting the temperature of hot water and a pump for feeding hot water to the bathtub are disposed in the hot water circulation path, and a gas supply path is connected to the tank.

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