JP4437924B2 - Purification device in bath water circulation device and bath water purification method - Google Patents

Description

  The present invention relates to, for example, a vortex bath apparatus that pumps hot water in a bathtub and re-injects it as a vortex, a bath water circulation apparatus that is used in a circulating carbonated spring production apparatus that dissolves carbon dioxide in the hot water in the bathtub, etc. The present invention relates to a purification device capable of purifying a circulation circuit and a bath water purification method thereof. In particular, the present invention relates to a purification device in a bath water circulation device and its bath capable of removing dirt and the like adhering to the circulation circuit before the operation of the bath water circulation device is started or after the operation of the bath water circulation device is finished. The present invention relates to a water purification method.

  In the eddy current bath, the eddy current is applied to the human body to promote circulation, promote metabolism, relieve pain, relax muscles, and the like. It is said that there are both the thermal stimulation by hot water and the mechanical stimulation (micro massage effect) by the vortex as the effect of the vortex bath.

  On the other hand, carbonated springs have been used in bathhouses and the like that use hot springs for a long time because of their excellent heat retention. The warming action of carbonated springs is basically considered to be due to the improvement of the body environment due to the peripheral vasodilatory action of the carbon dioxide contained. Further, it is considered that the percutaneous approach of carbon dioxide gas causes an increase and expansion of the capillary bed and improves the blood circulation of the skin. For this reason, it is said that it is effective in the treatment of degenerative lesions and peripheral circulation disorders.

  In recent years, especially in the above-described treatment, when the carbon dioxide concentration in the carbonated spring is around 1200 mg / L (liter), which is a supersaturated concentration range in warm water of about 40 ° C., the physiological effect of the carbonated spring can be more remarkably exhibited. I understand.

  As a method for artificially producing carbonated springs, for example, a carbonated spring production method using a one-pass type carbonated spring production apparatus for producing carbonated hot water by passing hot water supplied from a water heater or the like once through a carbon dioxide gas dissolver There is a carbonated spring manufacturing method using a circulating carbonated spring manufacturing apparatus that circulates hot water in a bathtub through a carbon dioxide dissolver by a circulation pump. In particular, in the above-mentioned circulation type carbonated spring production method, even if the dissolving capacity of carbon dioxide in the carbon dioxide dissolver is low, it is easy to obtain a high concentration carbonated spring by increasing the number of circulations of hot water, that is, by increasing the circulation time. Can be manufactured.

  As an example of this type of circulation type carbonated spring production apparatus, for example, a circulation type carbonated spring production apparatus provided with a purification circuit for purifying wastes, scales and the like mixed with warm water from the human body has been proposed (for example, Patent Documents). 1).

  As shown in FIG. 3, the carbonated spring manufacturing apparatus described in Patent Document 1 includes a circulation pump 101 and a circulation channel 102 outside the bathtub. In the circulation channel 102, a purification circuit including a filter 103, a filter 104, and a sterilizer 105, a temperature sensor 106, a heater 107, and a carbon dioxide gas dissolver 108 are disposed. The hot water coming out of the bathtub 100 is forcedly circulated in the circulation channel 102 outside the bathtub by the circulation pump 101.

  The hot water that has come out of the bathtub 3 is supplied to the filter 104 and the sterilizer 105 through the filter 103. The hot water is purified by removing wastes and scales from the human body and mixed with hot water by the filter 104. The sterilizer 105 sterilizes bacteria that corrode water mixed in the bathtub 100. As the sterilizer 105, for example, ozone generating means, ultraviolet irradiation means, or the like is used.

  The temperature sensor 106 detects the temperature of the hot water flowing through the circulation channel 102, and the amount of heat generated by the heater 107 is controlled so as to keep the temperature of the hot water in the bathtub 100 at a predetermined temperature. The warm water that has passed through the heater 107 is guided to the carbon dioxide gas dissolver 108, where the carbon dioxide gas is dissolved in the warm water to form a high-concentration carbonated spring, and the warm water is returned to the bathtub 100 as a carbonated spring.

Further, in the carbonated spring manufacturing apparatus shown in FIG. 3, a pH sensor 109 is disposed in the bathtub 100 in order to keep the carbon dioxide gas concentration of the carbonated spring in the bathtub 100 constant. The opening amount of the on-off valve 111 of the carbon dioxide gas cylinder 110 is controlled by the measurement signal of the carbon dioxide gas concentration output from the pH sensor 109 to adjust the amount of carbon dioxide gas supplied to the carbon dioxide gas dissolver 108. In addition, the carbonated spring manufacturing apparatus described in Patent Document 1 was previously proposed by the present applicant.
Japanese Patent No. 3168135

  As described above, the carbonated spring manufacturing apparatus described in Patent Document 1 purifies the warm water by removing the wastes and scales mixed with the warm water from the human body through the filter 104, and through the sterilizer 105. The water quality of the carbonated spring is maintained by sterilizing bacteria and the like mixed in the bathtub 100 and corroding water.

  However, the purification circuit such as the filter 104 and the sterilization device 105 purifies the circulating hot water when the circulating water is forcibly circulating the hot water in the bathtub 100 in the circulation channel 102 outside the bathtub. It is used for For this reason, the hot water remaining in the circulation channel 102 cannot be purified before the operation of the bath water circulation apparatus starts or after the operation of the bath water circulation apparatus ends.

  For this reason, after the operation of the bath water circulation device is completed, wastes, scales, and the like that come out of the human body during bathing and are mixed in the warm water of the bathtub 100 remain in the circulation channel 102 and are likely to accumulate. In addition, if wastes and scales remaining in the circulation channel 102 are left as they are, germs can easily propagate in the circulation channel 102. As a result, when the operation of the bath water circulation apparatus is started, the wastes and scales remaining in the circulation channel 102, germs that have propagated in the circulation channel 102, and the like are newly collected in the bathtub 100 and are clean bath water. There was a problem of being mixed in. In particular, as hot water to be circulated in the carbonated spring manufacturing apparatus, for example, when the bath water exposed to the human body remaining in the circulation channel 102 is circulated again, there is a problem that the newly accumulated bath water in the bathtub 100 is further contaminated. It was.

  The present invention has been made to solve the above-mentioned problems, and has as its first object to provide a bath water circulation device provided with a purification device capable of rationally purifying hot water in the circulation circuit. . Furthermore, it is a second object of the present invention to provide a purification method capable of removing dirt in the circulation circuit before the operation of the bath water circulation device is started or after the operation of the bath water circulation device is finished.

The invention according to the claims 1, chromatic temporarily taken out of hot water in the bathtub to the outside of the bathtub, a circulation circuit for circulating the hot water in then bringing it within the bathtub, a circulation pump arranged in the circulation circuit, the A bath water circulation device comprising :
The circulation circuit, a cleaning water supply means through the first switching valve, and a washing water discharge means via the second switching valve, but is connected, furthermore, is blowing means having a stop valve, wherein It exists in the purification apparatus in the bath water circulator characterized by connecting between the said 1st switching valve and the said 2nd switching valve of a circulation circuit .

The invention according to claim 2 is the invention according to claim 1 , wherein the circulation circuit has a water supply line and a drain line through the circulation pump, and the washing water supply means is the water supply line. Or it is connected to one side of the drainage line, and the washing water discharging means is connected to the other side of the drainage line or the water supply line.

The invention according to claim 3 is the invention according to claim 1 or 2, wherein the air supply means is connected between the first switching valve of the circulation circuit and the circulation pump. It is said.
The invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein at least one of the first switching valve or the second switching valve comprises a three-way switching valve. It is characterized by.

  The invention according to claim 5 is the invention according to any one of claims 1 to 4, wherein the cleaning water supply means and the cleaning water discharge means are arranged in the bathtub in the circulation circuit. It is characterized by being connected to the vicinity of each mouth.

The invention according to claim 6 is the invention according to any one of claims 1 to 5 , wherein at least one of the three-way switching valve or the stop valve is a valve that is automatically controlled. Yes.

The invention according to claim 7 is the invention according to any one of claims 1 to 6 , wherein a carbon dioxide gas dissolver is disposed in the drainage line, and a carbon dioxide supply means is connected to the carbon dioxide gas dissolver. It is characterized by being.

The invention according to claim 8 is the invention according to any one of claims 1 to 7 , characterized in that the cleaning water supplied by the cleaning water supply means is water containing chlorine.

The invention according to claim 9 is the invention according to claim 8 , wherein the water containing chlorine is a sodium hypochlorite aqueous solution.

The invention according to claim 10 is the invention according to claim 8 , characterized in that the wash water supplied by the wash water supply means is tap water.

The invention which concerns on Claim 11 is a bath water purification method which wash | cleans the said circulation circuit using the purification apparatus in any one of Claims 1-10 , Comprising: Before the operation start of the said bath water circulation apparatus, or bath water circulation After the operation of the apparatus, the first switching valve and the second switching valve are switched to the cleaning water supply means side and the cleaning water discharge means side, respectively, and the cleaning water is supplied from the cleaning water supply means to the circulation circuit. The bath water purifying method is characterized by comprising supplying to the washing water discharging means.

The invention according to claim 12 is the invention according to claim 11 , further comprising discharging the cleaning water flowing into the cleaning water discharging means out of the bathtub.

The invention according to claim 13 is the invention according to claim 12 , wherein the cleaning water is supplied from the cleaning water supply means to the circulation circuit and the cleaning water discharge means, and the supply of the cleaning water is stopped. The method further includes switching the first switching valve in a direction to stop the connection with the cleaning water supply means and introducing air from the air supply means .

  In the purification apparatus for the bath water circulation apparatus according to the present invention, as in the invention according to claim 1, the washing water supply means is connected to the circulation circuit for circulating the hot water in the bathtub by the circulation pump via the first switching valve. ing. For this reason, bath water exposed to the human body, wastes remaining in the circulation circuit, scales and germs can be completely discharged out of the circulation circuit and cleaned, and the bath water circulation device is used. You can always get a clean bath every time you do it. In addition, since the dirt in the circulation circuit can be removed using the bath water circulation device, it is possible to prevent the propagation of germs in the circulation circuit. Conventionally used filters, filters, sterilizers, and the like can be disposed in the circulation circuit.

In the purification apparatus of the present invention, the washing water discharge means can be connected to the circulation circuit via the second switching valve. The wash water supplied into the circulation circuit via the wash water supply means and the wash water discharge means can be discharged out of the bathtub.

As the said circulation circuit, like the invention which concerns on the said Claim 2 , a water supply line and a drainage line can be provided through the said circulation pump. The washing water supply means can be connected to one of the water supply line or the drainage line, and the washing water discharge means can be connected to the other drainage line or water supply line. Thereby, a purification device having a simple structure can be reasonably obtained.

The air supply means can be connected between the first switching valve of the circulation circuit and the circulation pump, as in the invention according to claim 1 or 2. The air supply means can be provided with a stop valve. After supplying the cleaning water from the cleaning water supply means to the circulation circuit and the cleaning water discharge means, the supply of the cleaning water from the cleaning water supply means is stopped by switching the first switching valve, and then stopped. The compressed air supplied from the air supply source with the valve opened can be introduced into the circulation circuit and the washing water discharge means by the air supply means. Since the compressed air introduced by the air supply means can be used to drain water in the circulation circuit, all waste products remaining in the circulation circuit, scales, bacteria, etc. Can be completely removed. Further, the inside of the circulation circuit can be dried by the introduced compressed air.
As at least one of the first switching valve and the second switching valve, a three-way switching valve can be used as in the invention according to claim 4. The three-way switching valve can be freely switched to the washing water supply means, the washing water discharge means, and the circulation circuit. Accordingly, it is possible to rationally perform the work of bath water circulation and purification.

  The washing water supply means and the washing water discharge means can be respectively connected in the vicinity of the water supply / drainage port arranged in the bathtub in the circulation circuit. By providing each switching valve of the washing water supply means and the washing water discharge means in the vicinity of the bath water supply / drainage port in the bathtub, a wide range in the circulation circuit can be washed.

At least one of the three-way switching valve or the stop valve can be constituted by a valve that is automatically controlled as in the invention according to claim 6 . Although the operation of the three-way switching valve or the stop valve can be performed manually, each valve is switched by a control signal from a detection means or a control unit by using, for example, an electromagnetic switching valve. Can be controlled automatically.

In the purification apparatus of the present invention, as in the invention according to claim 7 , a carbon dioxide gas dissolver can be disposed in the drainage line, and a carbon dioxide gas supply means can be connected to the carbon dioxide gas dissolver. . With the purification device of the present invention, the bath water circulation device can be used from the state in which the inside of the circulation circuit is always washed, and it is possible to sufficiently ensure clean bath water as bath water for the bathtub. In addition, carbon dioxide gas can be efficiently dissolved in hot water through the circulation circuit, and a high concentration carbonated spring can be obtained. Thereby, the inside of a bathtub can be made into a beautiful carbonated hot spring.

The washing water is preferably water containing chlorine as in the invention according to claim 8 . As the water containing chlorine, an aqueous sodium hypochlorite solution can be used as in the invention according to claim 9 . As the sodium hypochlorite aqueous solution, tap water containing sodium hypochlorite is particularly effective as in the invention according to claim 10 . Since this tap water is clean water and has a sterilizing effect of sodium hypochlorite, the inside of the circulation circuit can be cleaned cleanly.

The bath water purification method of the present invention is carried out using the purification device described above. The representative method is that the first and second switching valves are connected to the washing water supply means before the start of the operation of the bath water circulation device or after the operation of the bath water circulation device, as in the invention according to claim 11. By switching to the washing water discharge means side, the washing water from the washing water supply means can flow out to the washing water discharge means via the circulation circuit. Furthermore, as in the invention according to claim 12 , the washing water that has flowed into the washing water discharge means can be discharged out of the bathtub.

In the bath water purification method of the present invention, as in the invention according to claim 13 , after the cleaning water is supplied from the cleaning water supply means to the circulation circuit and the cleaning water discharge means, the supply of the cleaning water is stopped. Thus, the compressed air can be introduced from the air supply means by switching the first switching valve in the direction in which the connection with the washing water supply means is stopped. Combined with the cleaning in the circulation circuit with the washing water, all the wastes, scales and germs remaining in the circulation circuit can be completely removed. For this reason, it is possible to prevent the propagation of various germs even more effectively, and when the bath water circulation device is not used, the inside of the circulation circuit can be kept dry.

Preferred embodiments of the present invention will be specifically described below with reference to the accompanying drawings.
FIG. 1 is an overall explanatory view showing an example of a purification device in a bath water circulation apparatus which is a typical first embodiment of the present invention. In the first embodiment, the example used for the purification device in the bath water circulation device is given. However, the present invention is not limited to this example. For example, a water tank such as a water storage tank or a water supply tank is used. It can also be applied to things other than bathtubs.

  In FIG. 1, the bath water circulation device is constituted by a circulation circuit that circulates hot water in the bathtub 1 to the outside of the bathtub, and a circulation pump 4 interposed between the water supply line 2 and the drainage line 3 in the circulation circuit. Yes. Hot water in the bathtub 1 is sucked up by the circulation pump 4 and returned to the bathtub 1 through the water supply line 2 and the drainage line 3 from the prefilter 5 again. In the circulation circuit, a filter, a sterilizer, a heater, and the like (not shown) can be disposed in the circulation circuit as in the above-described Patent Document 1, and therefore the bath water circulation device is not limited to the illustrated example.

  Although it does not specifically limit as the circulation pump 4, Preferably, a centrifugal pump can be used, for example. The centrifugal pump is more preferable than other pumps in terms of quietness, cost, size, and the like. In addition, as the circulation pump 4, for example, a reversible pump capable of bi-directional discharge capable of reversing the pump tilt angle between both the discharge side and the suction side can be used. As the reversible pump, for example, a swash plate type piston pump or an oblique axis type piston pump can be used.

  The pre-filter 5 is for trapping large debris such as hair mixed in warm water and preventing contamination in the circulation circuit. In the first embodiment, it is not always necessary to provide the water supply line 2. As the prefilter 5, a sponge, a wire mesh, a sintered material, or the like can be used. The pore diameter of the prefilter 5 is preferably fine, but if it is too fine, the resistance increases. For this reason, the prefilter pore diameter is preferably several tens of μm to several hundreds of μm.

  The main feature of the present invention is that a purification device capable of removing dirt in the circulation circuit is disposed in the circulation circuit before the operation of the bath water circulation device is started or after the operation of the bath water circulation device is finished. It is said. In the first embodiment, cleaning water supply means is connected to the water supply line 2 via a first switching valve 6. A washing water discharge means is connected to the drain line 3 via a second switching valve 7. Further, according to the illustrated example, an air supply means is connected between the first switching valve 6 and the circulation pump 4 in the water supply line 2. As the first and second switching valves 6 and 7, a three-way switching valve can be used.

  These circulation circuit, washing water supply means, washing water discharge means, and air supply means constitute a purification device that is a characteristic part of the present invention. In the cleaning water supply means, cleaning water supplied from a cleaning water supply source (not shown) passes through the cleaning water supply line 8, passes through the flow rate control valve 9, the electromagnetic valve 10, and the first switching valve 6, and enters the water supply line 2. Can be supplied. In the washing water discharge means, the washing water supplied through the water supply line 2 and the drainage line 3 can be discharged out of the bathtub through the circulation pump 4, the second switching valve 7, and the washing water discharge line 11. .

  Although the switching operation of the first and second switching valves 6 and 7 can be performed manually by an operator, each switching valve 6 and 7 is, for example, an electromagnetic switching valve, and a detection means or a control unit (not shown). By connecting to, the switching of the switching valves 6 and 7 can be automatically controlled. Note that each of the switching valves 6 and 7 can be replaced with two electromagnetic valves. Further, the opening and closing operation of the electromagnetic valve 10 can be performed by an operator's manual operation. However, like the first and second switching valves 6 and 7, by connecting to a detection means and a control unit (not shown). The opening and closing of the electromagnetic valve 10 can be automatically controlled.

  When the first switching valve 6 is switched from the water supply line 2 side to the cleaning water supply line 8 side, the water supply line 2 and the cleaning water supply line 8 can be connected. By switching the second switching valve 7 to the cleaning water discharge line 11 side when the first switching valve 6 is switched to the cleaning water supply line 8 side, the bath water in the circulation circuit is moved out of the bathtub. Can be discharged.

  In the illustrated example, the first switching valve 6 is disposed between the water supply line 2 and the circulation pump 4, but can be disposed between the circulation pump 4 and the drainage line 3. When the first switching valve 6 is disposed between the circulation pump 4 and the drainage line 3, the second switching valve 7 is provided between the water supply line 2 and the circulation pump 4. By providing each switching valve 6, 7 near the bath water supply / drain port in the bathtub 1, a wide range in the circulation circuit can be washed.

  Here, the washing water is not particularly limited, but water containing chlorine, for example, a sodium hypochlorite aqueous solution is preferable. More preferably, tap water containing sodium hypochlorite is particularly effective. Since this tap water is clean water and has a sterilizing effect of sodium hypochlorite, the inside of the circulation circuit can be cleaned cleanly. Further, when tap water is used as the target of the cleaning water, the cleaning water is appropriately supplied to the cleaning water supply line 8 and the circulation circuit when necessary by connecting to a water pipe (not shown). It can flow out of the bathtub.

  In the case of using tap water, which is the object of washing water, the supply speed into the circulation circuit varies depending on the tap water supply pressure. For this reason, it is preferable to install a flow control valve 9 in the washing water discharge line 11. Moreover, a vacuum source (not shown) can be connected to the washing water discharge line 11 to suck hot water or the like in the circulation circuit.

  The switching to the purification device is preferably performed before the start of the operation of the bath water circulation device or after the operation of the bath water circulation device is completed. The staying water in the circulation circuit collected before the start of the operation of the bath water circulation device can be drained out of the bathtub, and the inside of the circulation circuit can be sterilized and disinfected. Therefore, clean bath water that is not exposed to the human body can be ensured without being contaminated by residual water remaining in the circulation circuit. Moreover, by performing after completion | finish of the operation of bath water circulation, the bath water exposed to the human body, the waste material which remain | survives in a circulation circuit, a scale, a germ, etc. can be discharged | emitted out of the system completely, and can be cleaned. For this reason, propagation of various bacteria in the circulation circuit can be prevented.

  Further, the switching to the cleaning water supply line 8 and the cleaning water discharge line 11 may be performed independently, but it is preferable to operate them together. The first switching valve 6 is switched to the washing water supply line 8 side and the second switching valve 7 is closed until the next bath water circulation operation is performed after the bath water circulation is completed. Can do. Thereby, the inside of a circulation circuit will be filled with washing water, and propagation of miscellaneous bacteria can be suppressed.

  At the start of operation of the bath water circulation device, when the wash water accumulated in the circulation circuit is returned to the bathtub 1 by opening the second switching valve 7, the wash water is mixed into the bath water or in the case of tap water. Therefore, it is preferable to open the second switching valve 7 and switch to the washing water discharge line 11 side. Thereby, the operation of bath water circulation can be performed in a clean circulation circuit.

  Further, in the air supply means, compressed air supplied from an air supply source (not shown) can be introduced into the circulation circuit and the washing water discharge line 11. After supplying cleaning water from the cleaning water supply line 11 to the circulation circuit and the cleaning water discharge line 11, the first switching valve 6 is switched in a direction to stop the connection with the cleaning water supply line 8 side. Then, the supply of cleaning water from the cleaning water supply line 11 is stopped.

  Then, by opening the electromagnetic valve 12 as a stop valve and introducing the compressed air into the circulation circuit and the washing water discharge line 11 through the air supply line 13, water can be drained from the circulation circuit. For this reason, it is possible to completely remove all wastes, scales and germs remaining in the circulation circuit in combination with purification in the circulation circuit with washing water. After the removal, the inside of the circulation circuit is dried. I can leave. For this reason, propagation of various germs can be prevented even more effectively. The opening / closing operation of the solenoid valve 12 can be performed manually by an operator, but the opening / closing operation of the solenoid valve 12 can be automatically controlled by connecting to a detection means or a control unit (not shown). Of course.

  FIG. 2 is an overall explanatory view showing an example of a circulation type carbonated spring production apparatus provided with a purification device in the bath water circulation apparatus of the present invention. In FIG. 2, substantially the same members as those in the first embodiment are given the same member names and symbols. Therefore, the detailed description regarding these members is omitted.

  In FIG. 2, a carbon dioxide gas dissolver 14 is arranged in a circulation circuit between the circulation pump 4 and the second switching valve 7. A carbon dioxide supply line 20 is connected to the carbon dioxide inlet of the carbon dioxide dissolver 14. Carbon dioxide gas is supplied from the carbon dioxide gas cylinder 15 through the carbon dioxide gas supply line 20, adjusted to a constant pressure by the pressure reducing valve 16, and adjusted by the flow rate control valve 17. An electromagnetic valve 18 that is a carbon dioxide gas shutoff valve is provided downstream of the flow rate control valve 17, and a check valve 19 is provided to prevent the backflow of carbon dioxide gas.

  The carbon dioxide gas is supplied to the carbon dioxide gas dissolver 14 through the carbon dioxide gas supply line 20 through the carbon dioxide gas cylinder 15, the pressure reducing valve 16, the flow rate control valve 17, the electromagnetic valve 18, and the check valve 19. By connecting the solenoid valve 18 to a detection means or a control unit (not shown) at the start of operation of the bath water circulation device, the solenoid valve 18 can be automatically controlled in a timely manner when necessary. The electromagnetic valve 18 can be selected and disposed on the carbon dioxide supply line 20 between the pressure reducing valve 16 and the carbon dioxide dissolver 14.

  Even in the second embodiment, clean bath water can be secured without contaminating clean bath water as in the first embodiment. In addition, carbon dioxide can be efficiently dissolved in warm water through a circulation circuit to obtain a high-concentration carbonated spring, and a beautiful hot spring can be bathed.

  The carbon dioxide dissolver 14 is not particularly limited. For example, a membrane-type carbon dioxide dissolver, a static mixer, a pressurized spray tank (carbo) configured by incorporating a membrane module in which a hollow fiber membrane is disposed. (Neter) can be used. In addition, the purification apparatus in the bath water circulation apparatus of this invention is applicable also to the eddy current bath apparatus conventionally used. Further, the present invention is not limited to the above-described embodiments, and naturally includes a technical range that can be easily changed by those skilled in the art from these embodiments.

  Hereinafter, more specific examples of the present invention will be described.

  A vortex bath was performed using the purification device in the bath water circulation device shown in FIG. The circulation circuit was cleaned before the operation of the purification device. After the bath water of appropriate temperature is filled evenly in the bathtub 1, the first and second switching valves 6 and 7 are switched to the washing water supply line 8 side and the washing water discharge line 11 side, respectively, and the washing water supply line 8 The tap water was supplied through the first switching valve 6, the water supply line 2, the circulation pump 4, the drainage line 3, the second switching valve 7, and the washing water supply line 11 to the outside of the bathtub. After supplying tap water for about 1 minute, the first switching valve 6 was switched to the water supply line 2 side. After confirming that warm water was drained from the washing water discharge line 11, the second switching valve 7 was switched to the drain line 3 side. After supplying hot water from the hot water source to the bathtub 1, a vortex bath was performed. Dirt was not observed in the bath water before the person took a bath.

  The eddy current bath was performed using the purification device in the bath water circulation shown in FIG. The circulation circuit was cleaned after the last purification device operation. The first and second switching valves 6 and 7 are switched to the cleaning water supply line 8 side and the cleaning water discharge line 11 side, respectively, and the cleaning water supply line 8, the first switching valve 6, the water supply line 2, the circulation pump 4, Tap water was supplied through the drainage line 3, the second switching valve 7, and the washing water supply line 11 outside the bathtub. After the supply of tap water was stopped, the solenoid valve 12 was opened, compressed air was introduced into the circulation circuit and the washing water discharge line 11 through the air supply line 13, and the circulation circuit was drained. After confirming that tap water no longer came out from the washing water discharge line 11, washing in the circulation circuit was completed. Several days later, a vortex bath was performed. Dirt was not observed in the bath water before the person took a bath.

It is whole explanatory drawing which shows an example of the purification apparatus in the bath water circulation apparatus of this invention. It is whole explanatory drawing which shows an example of the circulation type carbonated spring manufacturing apparatus provided with the purification apparatus of this invention. It is whole explanatory drawing which shows an example of the conventional circulation type carbonated spring manufacturing apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bathtub 2 Water supply line 3 Drainage line 4 Circulation pump 5 Pre filter 6 1st switching valve 7 2nd switching valve 8 Washing water supply line 9 Flow control valve 10 Solenoid valve 11 Washing water discharge line 12 Solenoid valve 13 Air supply line 14 Carbon dioxide gas dissolver 15 Carbon dioxide gas cylinder 16 Pressure reducing valve 17 Flow rate control valve 18 Solenoid valve 19 Check valve 20 Carbon dioxide supply line

Claims (13)

A circulation circuit that circulates the hot water by temporarily taking out the hot water in the bathtub and returning it to the bathtub again ;
A bath water circulation apparatus comprising a, a circulation pump arranged in the circulation circuit,
In the circulation circuit ,
Cleaning water supply means via the first switching valve ;
Wash water discharge means is connected to each other via the second switching valve,
further,
An air supply means having a stop valve is provided between the first switching valve and the second switching valve of the circulation circuit.
A purification device in a bath water circulation device, wherein the purification device is connected. The circulation circuit has a water supply line and the drain line through the circulation pump, the washing water supply means,
2. The purifier according to claim 1 , wherein the purifier is connected to one of the water supply line or the drainage line, and the washing water discharging means is connected to the other of the drainage line or the water supply line. The purification apparatus according to claim 1 or 2, wherein the air supply means is connected between the first switching valve of the circulation circuit and a circulation pump.   The purification apparatus according to any one of claims 1 to 3, wherein at least one of the first switching valve and the second switching valve is a three-way switching valve.   The said washing water supply means and the said washing water discharge means are each connected to the vicinity of the water supply / drain port distribute | arranged in the said bathtub in the said circulation circuit, The one in any one of Claims 1-4 characterized by the above-mentioned. Purification equipment. The purification apparatus according to any one of claims 1 to 5, wherein at least one of the three-way switching valve or the stop valve is a valve that is automatically controlled. The purification apparatus according to any one of claims 1 to 6 , wherein a carbon dioxide gas dissolver is disposed in the drainage line, and a carbon dioxide gas supply means is connected to the carbon dioxide gas dissolver. The purification device according to any one of claims 1 to 7 , wherein the cleaning water supplied by the cleaning water supply means is water containing chlorine. The purification apparatus according to claim 8 , wherein the water containing chlorine is a sodium hypochlorite aqueous solution. 9. The purification apparatus according to claim 8, wherein the cleaning water supplied by the cleaning water supply means is tap water. A method for purifying bath water using the purification device according to any one of claims 1 to 10 , wherein the inside of the circulation circuit is washed.
Switching the first switching valve and the second switching valve to the washing water supply means side and the washing water discharge means side before starting the operation of the bath water circulation apparatus or after the operation of the bath water circulation apparatus, respectively; Supplying wash water from the wash water supply means to the circulation circuit and allowing the wash water discharge means to flow out;
The bath water purification method characterized by comprising. 12. The bath water purification method according to claim 11 , further comprising discharging the cleaning water flowing into the cleaning water discharging means out of the bathtub. The cleaning water is supplied from the cleaning water supply means to the circulation circuit and the cleaning water discharge means, the supply of the cleaning water is stopped, and the connection of the first switching valve to the side of the cleaning water supply means is stopped. The bath water purification method according to claim 12 , further comprising switching to a direction and introducing air from the air supply means.

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