JP2000140063A - Sauna bathing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve heat efficiency of a sauna heater, to improve feeling of a body in a sauna bathing and to realize automatic cleaning of a steam generator by an apparatus wherein steam is generated by effectively utilizing heat of exhaust gas of the sauna heater using heat of combustion as a heat source to decrease loss of exhaust gas of the sauna heater and generated steam is passed through a herb to prepare a perfume steam by adding a perfume ingredient and the perfume steam is emitted into the sauna room and a device for adding perfume and moistening is equipped. SOLUTION: A sauna apparatus provided with a combustion device 6 in a sauna room 1 is constituted in such a way that a steam generator 10 using exhaust heat of the combustion device as a heat source is provided and the generated steam is used for moistening air in the sauna room. In this case, it is pref. that a steaming room 15 in which a perfume generating material 15-2 is stored is provided and a perfume generating device 14 which passes the steam introduced from the above described steam generator 10 through the above described steaming room 15 and emits it is disposed in the sauna room. Valves are arranged on various positions such as a water inlet part of the steam generator for moistening and a steam outlet part and cleaning is performed by sending a large amt. of water to the steam generator when it is required.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a comfortable and healthy sauna bath apparatus for imparting moderate humidity and aroma such as medicinal herbs to a human body in an extremely dry and hot dry sauna room. Things.

[0002]

2. Description of the Related Art In a sauna which was widely used in Northern Europe and the like in the past, steam was generated by applying water to a heated sauna stone or the like, thereby preventing the sauna room from being extremely dried artificially. However, in recent years, high-temperature dry saunas use electric power, and electric stoves that are not sufficiently insulated from the power supply connection are used most often. Sauna baths that cannot raise the relative humidity and are extremely dry at high temperatures are the most common. However, adding a little humidity compared to an extremely dry sauna bath gives a softer bathing feeling and heating the human body faster when the humidity is added, so a steam generator that generates moderate steam Separately outside the sauna room,
An example in which the generated steam is introduced into a sauna room through a pipe and humidified, has begun to be known.

[0003] On the other hand, conventionally, a sauna bath apparatus in which aromatic steam is added to a colder steam sauna room, or an aromatic agent is artificially added to a hot sauna room to enhance the relaxing effect and refreshing effect by the aroma of the sauna bath. Is used in part, and as shown in Japanese Patent Application No. 7-21726, steam is generated by heat generated from a sauna heater, and the generated steam is used to steam aromatic herbs to add a fragrance component. Fragrance generating and humidifying device for a sauna room for humidifying and humidifying a sauna room by using the same, a sauna bath device provided with the device, and Japanese Patent Application No. 9-7 / 1997.
A sauna device equipped with a humidifying device such as No. 7444 is also disclosed.

[0004]

SUMMARY OF THE INVENTION The present invention relates to an improvement of the inventions of Japanese Patent Application Nos. 7-21726 and 9-77444. Is a sauna bath equipped with a humidifier for a sauna heater using combustion heat that further enhances thermal efficiency and is simpler and easier to maintain and maintain when the heat of combustion of fuel is used as a heat source, as long as the function of both devices is not impaired. Obtaining a device is the first problem to be solved by the present invention.

On the other hand, when the water is evaporated, the water is concentrated, and there is a problem that scale is attached to the steam generator and the steam generator is clogged. This problem does not hinder the function as a sauna heater. Obtaining a device that automatically cleans within a range is a second problem to be solved by the present invention.

[0006]

The first object of the present invention is to use a part of the heat of exhaust gas discharged outdoors as a heat source for heating and evaporating water to lower the exhaust temperature and improve the thermal efficiency. The second problem is solved by means of raising
A plurality of electric valves are provided at the water inflow section and the steam outflow section of the steam generator, and a flow path different from the normal flow path during humidification is provided. The problem is solved by means of automatically switching the flow path and cleaning the flow path of water or steam inside the steam generator during a time when the functions as the apparatus and the heating apparatus are not hindered.

More specifically, the present invention provides a sauna bath having a combustion device in a sauna room, provided with a steam generation device using heat exhausted from the combustion device as a heat source, and using the generated steam to generate air in the sauna room. The above sauna bath device is used for humidification.

[0008] In this case, it is recommended to provide in the sauna room a fragrance generator having a steaming chamber in which a fragrance generating material is housed, and discharging steam introduced from the steam generator through the steaming chamber. Is done.

In addition, a water supply valve provided at a water inflow portion to the steam generator, a steam valve provided at a steam outflow portion from the steam generator, and a drainage provided on a branch pipe leading from the steam outflow portion to a drain port. A valve is provided, and at the time of steam generation operation, the drain valve is closed, a small amount of water for steam generation is supplied to the steam generator through the water supply valve with the water supply valve and the steam valve open, and when the steam generator is washed. It is recommended to provide a valve operation control device that controls the opening and closing of the valves so that a large amount of water for washing is supplied to the steam generator through the water supply valve with the steam valve closed and the water supply valve and the drain valve opened. You. In this case, a solenoid valve or a motor-operated valve can be suitably used as each of the valves.

[0010] Alternatively, a water supply valve provided at a water inlet to the steam generator, a steam valve provided at a steam outlet from the steam generator, and a branch pipe connected from the water inlet to a drain port. A drain valve and a backwash valve provided on a branch pipe leading from the steam outlet to the water supply pipe are provided, and at the time of steam generation operation, the drain valve and the backwash valve are closed,
A small amount of water for steam generation is supplied to the steam generator through the water supply valve with the water supply valve and the steam valve open, and when the steam generator is washed, the water supply valve and the steam valve are closed, and the backwash valve and the drain valve are drained. It is recommended to provide a valve operation control device that controls the opening and closing of the valves so that a large amount of water for washing is supplied to the steam generator through the backwashing valve with the valve opened.

In the apparatus of the inventions of Japanese Patent Application Nos. 7-21726 and 9-77444, the heat source evaporates water by the heat generated by the heat source. The amount of heat required to raise and maintain the temperature of the chamber is reduced. On the other hand, since the temperature of the sauna room is as high as 80 ° C to 120 ° C, the exhaust temperature of the combustion gas that exchanges heat with the high-temperature air must be as high as 150 ° C or higher. Exhaust temperature is usually 200 ℃ ~ 300 ℃
Degree is most common.

The amount of steam humidified in a general commercial dry sauna room is a small amount of about 0.5 to 3 liters / h, and the energy for generating this amount of steam is generated by a sauna heater using combustion heat for heating the sauna room. The amount that can be safely obtained from the exhaust gas is sufficient. Also, if a large amount of humidity is given to a high-temperature sauna room, it becomes too hot and cannot take a bath. For example, 80
Considering the case of taking a bath in a sauna room with 50% humidity and 50% humidity, the air close to the bather's skin is cooled by the human body, the relative humidity increases when the air temperature decreases, and the dew point decreases when the temperature decreases to about 64 ° C. The vapors condense and the heat of condensation and condensation at 64 ° C both heat the human body. Normally, if you take a bath of 64 ° C hot water, your body will be burned, but if steam condenses, the volume will be reduced to about 1/1000, so it is not hotter than bathing in 64 ° C hot water, but a lot of The effect of the heat of condensation is so great that you cannot keep bathing. Considering this, the humidity of a dry sauna room is at most 36% of the human body temperature.
Desirably, the humidity is such that the dew point is reached at a temperature of about 45 ° C at which hot water can be bathed. Air at a temperature of 80 ° C and a relative humidity of 20%
Since the dew point is reached at 45 ° C, the maximum humidification limit for a dry sauna room is estimated to be about 20% relative humidity (64.0 g / kg absolute humidity),
As a result of installing and using such a sauna bath device in various places in Japan (more than 10 places), it has been proven in practice that relative humidity of that level is suitable, and has been well received. Therefore, it is considered how much the temperature of the combustion gas decreases when this amount of steam is generated using the heat of the exhaust gas of the sauna heater.

The inventor of the present invention invented a gas burning gas to generate far-infrared rays more than 10 years ago.
No. 45, which is widely known, and is widely used as a heat source for commercial saunas. In the case of a gas far-infrared sauna heater, in order to make the surface temperature of the far-infrared radiation tube suitable for far-infrared radiation, as described in detail in Japanese Patent Publication No. 3-7845, in addition to combustion air, a radiation tube is used. Cooling air is also introduced into the combustion chamber. The calculation is performed assuming that the gas far-infrared sauna heater is operating at the highest efficiency and satisfactorily. Assuming that the gas combustion amount is 15,000 kcal /
h, assuming an exhaust temperature of 200 ° C and an air ratio of 3, a steam generator is installed at the exhaust part of a gas far-infrared sauna heater with an exhaust loss (higher heating value standard) of about 18% (thermal efficiency 82%),
When 1 liter of steam is generated per hour, the exhaust temperature
The temperature was reduced to about 170 ° C, the exhaust loss was about 14%, and the thermal efficiency was improved by about 4%. If the exhaust temperature is around 170 ° C, there is no danger of vapor condensing in the exhaust pipe and the condensed water being discharged from the exhaust pipe and contaminating the ceiling etc., and the thermal efficiency is as high as 86% based on the higher heating value. Thus, the highest thermal efficiency that can be expected as a gas far-infrared sauna heater can be obtained. On the other hand, the humidification amount was sufficient at the upper limit of the humidification amount of a sauna room equipped with a far-infrared sauna heater of about 1 liter per hour at a rate of about 15,000 kcal / h from the actual installation example.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below with reference to the drawings. FIG. 1 is a partially cutaway front view of an embodiment showing the first and second aspects of the present invention, and FIG. 2 is a configuration diagram of a steam generator in the third embodiment.
FIG. 4 is a control circuit diagram of the steam generator according to the third embodiment, FIG. 4 is a configuration diagram of the steam generator according to the fourth embodiment, and FIG. 5 is a steam generator according to the fourth embodiment. It is a control circuit diagram of a device.

An embodiment of the sauna bath apparatus according to the present invention will be described with reference to the drawings. The illustrated embodiment is a sauna bath apparatus according to the present invention in which a sauna room far infrared ray radiating device using gas as a heat source is provided in the sauna room, and a sauna room fragrance and humidifying device is provided. The far-infrared ray radiating device for sauna using the heat of combustion used in the present embodiment as a heat source,
This is a known device that is already widely used in Japanese Patent Publication No. 3-7845. A burner (not shown) in a combustion tube 6 provided below the far-infrared radiator 3 provided in the sauna room 1 has a through hole 5 in the wall 2 from a room adjacent to the sauna room.
The fuel gas is supplied through a gas pipe 4 inserted through the fuel cell, and similarly reacts with air flowing through the through hole 5 to perform combustion. The combustion gas in the combustion tube 6 is, as shown by the arrow,
The temperature is lowered while raising the inside of the tube and supplying heat into the sauna room 1 via the radiation tube while raising and lowering the radiation tubes 7-1, 7-2, and 7-3. The air is sucked by the exhaust fan 9 through the through hole 5. The exhaust gas pressurized by the exhaust fan 9 flows into the steam generator 10 from the exhaust fan 9, and is exhausted outside from the exhaust pipe 11 while heating the water heating pipe 10-1.

The water supplied to the water heating pipe 10-1 is 0.5 to
Since it is difficult to supply water continuously because of the small amount of about 3 liters / h, Japanese Patent Application No. 7-21726 and Japanese Patent Application No. 9-7
As described in detail in No. 7444, using a water supply electric valve and a timer, for example, when supplying 0.5 liters per hour, if water is supplied continuously, it becomes extremely small as 0.4 cc per second, which is technically difficult, so it is technically difficult. If the electric water supply valve is closed for 10 minutes and opened for 5 seconds, 16.7cc / s
At an ec flow rate (60 liters per hour), water can be easily supplied at 0.5 liters per hour. (See paragraph [0027] of JP-A-9-5677)

In this way, a small amount of water is supplied from the water supply pipe 12
As shown by the arrow, it flows into the steam generator 10 and is
The gas is heated by the exhaust gas while rising slowly in the inside of 10-1 and becomes steam, and flows out of the steam generator 10 into the steam pipe 13. The steam pipe 13 passes through the through-hole 5 of the wall 2 and passes through the far-infrared radiator 3 while ascending, as shown by the arrow.
The steam is caused to flow into the fragrance generator 14 provided above the far-infrared radiator. The inflowing steam is supplied to a small hole 15-provided in a lower part of a herb storage drawer 15 provided in the fragrance generating device 14.
1 through the herb 15-2, the fragrance component of the herb 15-2 is added to produce aromatic vapor, which is released from the aromatic vapor discharge port 14-1 into the sauna room 1 and humidifies the sauna room. As a result, the sauna room is humidified to an appropriate humidity, and the bather is exposed to high-temperature room air (80-90 ° C), far-infrared rays, and latent heat when water in the air touches the human body to cool and condense water. Heated comfortably by three.

If the water in the water heating pipe 10-1 continues to evaporate in this way, scale will precipitate in the pipe, and if the scale is not removed, the inside of the water heating pipe 10-1 will eventually become clogged, and steam generation will occur. The device 10 cannot function. Therefore, an automatic cleaning device for the steam generator 10 is required. First, FIGS. 2 and 3
An embodiment of an automatic cleaning device for a steam generator according to claim 3 will be described with reference to FIG. The steam generator 10 shown in FIG. 2 includes a water supply valve V1 provided at a water inlet to the steam generator 10, a steam valve V2 provided at a steam outlet from the steam generator 10, and a Drain
A drain valve V3 provided on a branch pipe 17 leading to 18 is provided. Then, as will be described later, a small amount of water for generating steam passes through the water supply valve V1 with the drain valve V3 closed and the water supply valve V1 and the steam valve V2 opened during the steam generation operation by a valve operation control device not shown in the figure. Is supplied to the steam generator 10, and when the steam generator is washed, a large amount of water for washing is supplied to the steam generator 10 through the water supply valve V1 with the steam valve V2 closed and the water supply valve V1 and the drain valve V3 opened. The valves V1, V2, and V3 are controlled to open and close so as to be supplied. FIG.
Switch 16-1 is on the 16-1a side,
The gas far-infrared sauna heater operates automatically by operating each device by a combustion control circuit 160 including a temperature controller, a flame monitoring device, and the like. The operation is substantially the same as that of a combustion device such as a boiler and is widely known. At this time, the water supply solenoid valve V1 shown in FIG. 2 and FIG. 3, the steam solenoid valve V2 provided on the steam pipe 13 for sending generated steam to the sauna room, and the branch pipe provided at the steam generator 10 outlet of the steam pipe 13 As shown in FIG. 3, the drainage solenoid valve V3 in FIG. 17 is a switch 16-2 interlocked with the switch 16-1.
, 16-3 and 16-4 enter the contact side indicated by a white circle, connect to the combustion control circuit through the circuit indicated by the dotted line, and
In accordance with the combustion situation according to 160, according to the command from the valve operation control device omitted in the figure, the water supply solenoid valve V1 is closed for 10 minutes as described above for the purpose of adjusting the water supply amount or the humidification amount,
Automatically opens and closes, such as opening for 5 seconds, the steam solenoid valve V2 is always open, and the generated steam is supplied from the steam pipe 13 to the sauna room,
The drain solenoid valve V3 is always closed.

In order to stop the gas far-infrared sauna heater at the end of work, when the switch 16-1 is turned on to the side of 16-1b and turned off, the solenoid valves V1, V2 and V3 are turned off. The operation of the combustion control circuit 160 is electrically disconnected by the operations of -3 and 16-4. When the switch 16-1 is turned off, power is supplied to the timer relay T through 16-1b, and at the same time, the time limit B contact TB of the timer relay T is closed, and power is supplied to the water supply solenoid valve V1 and the drain solenoid valve V3. , Both solenoid valves open, water is supplied to the water heating pipe 10-1 from the water supply solenoid valve V1,
While cleaning the inside of the water heating tube 10-1, a steam generating device is used.
It flows out through 10. Since the solenoid valve V2 is closed, the discharged water passes through the drain solenoid valve V3 as shown in FIG.
The water is discharged to the drain 18. Timer relay T is usually
Water is supplied at a flow rate of about 1 liter per minute during the period from 30 minutes to about 1 hour.
Wash the inside of the water heating tube 10-1 with about 60 liters of water.
When the set time of the timer T elapses, the timer relay T
The time limit B contact TB of the timer relay T opens, and the time limit A of the timer relay T
The contact TA is closed, whereby the water supply solenoid valve V1 and the drain solenoid valve V3 are closed, the steam solenoid valve V2 is opened, and the cleaning process is automatically terminated.

Next, with reference to FIGS. 4 and 5, an embodiment of the automatic cleaning apparatus for a steam generator according to claim 4 will be described. The steam generator 10 shown in FIG. 4 includes a water supply valve V1 provided at a water inflow portion into the steam generator 10,
A steam valve V2 provided at a steam outlet from the steam generator 10, a drain valve V3 provided on a branch pipe 20 leading from the water inlet to the drain port 18, and a branch pipe 19 leading from the steam outlet to the feed pipe 12; A backwash valve V4 provided above is provided. As will be described later, the drain operation valve V3 and the backwash valve V4 are operated by the valve operation control device (not shown) during the steam generation operation.
With water supply valve V1 and steam valve V2 open.
A small amount of water for steam generation is supplied to the steam generator 10 through the steam generator.When the steam generator is washed, the water supply valve V1 and the steam valve V2 are closed, and the backwash valve V4 and the drain valve V3 are opened for backwashing. A large amount of water for cleaning through a steam valve V4
The valves V1, V2, V3, and V4 are controlled to open and close so as to be supplied to the valve 10. The switch 16-1 in FIG.
When it is on the side, the gas far-infrared sauna heater operates each device by a combustion control circuit 160 composed of a temperature controller, a flame monitoring device, etc., and performs automatic operation as in the first embodiment. . At this time, the water supply solenoid valve V1 shown in FIGS. 4 and 5, the steam solenoid valve V2 provided on the steam pipe 13 for sending the generated steam to the sauna room, and the branch pipe 19 provided at the outlet of the steam generator 10 of the steam pipe 13 The backwashing solenoid valve V4 inside, the drainage solenoid valve V3 in the branch pipe 20 provided on the outlet side of the water supply solenoid valve V1 of the water supply pipe 12
The drain solenoid valve V3 communicates with the drain port 18.
As shown in FIG. 5, each solenoid valve during operation has a switch 16-2, 16-3, 16-4, which is linked with the switch 16-1, respectively.
, 16-5 enter the contact side indicated by a white circle, connect to the combustion control circuit 160 through a circuit indicated by a dotted line, and
The water supply solenoid valve V1 is closed for 10 minutes and opened for 5 seconds as described above for the purpose of adjusting the amount of water supply or humidification in accordance with the command from the valve operation control device not shown in the figure, depending on the combustion situation caused by The steam solenoid valve V2 is always open, the generated steam is supplied to the sauna room from the steam pipe 13, and the drain solenoid valve V3 and the backwashing solenoid valve V4 are always closed.

In order to stop the gas far-infrared sauna heater, when the switch 16-1 is turned on to the 16-1b side as shown in FIG. 5 and the switch is turned off, the solenoid valves V1, V2, V3 and V4 are turned on. The combustion control circuit 160 is electrically disconnected by the operations of -3, 16-4, and 16-5. When the switch 16-1 is turned off, power is supplied to the timer relay T through the switch 16-1b. At the same time, the timer relay T is switched through the switch 16-2.
The time limit B contact TB is closed, power is applied to the drain solenoid valve V3 and the backwash solenoid valve V4, and both solenoid valves are opened. Further, since the timed A-contact TA of the timer relay T is open, the steam solenoid valve V2 is closed, and the water supply solenoid valve V1 is also closed because the switch 16-5 is turned off. Therefore, as shown in FIG. 4, water enters the branch pipe 19 from the water supply pipe 12, passes through the backwashing solenoid valve V4, and enters the water heating pipe 10-1 because the steam solenoid valve V2 is closed. As shown by the arrow on the side, the inside of the water heating tube 10-1 is washed and flows out from the steam generator 10 while flowing backward. The outflowing washing water flows to the branch pipe 20 side because the water supply solenoid valve V1 is closed and the drain solenoid valve V3 is open, and is discharged to the drain port 18 through the drain solenoid valve V3. That is, the inside of the pipe is washed while flowing in the opposite direction to that during operation.

[0022]

As described above, in the case of the present invention, a moderate humidity is applied compared with the conventional extremely dry sauna bath, so that a softer bathing feeling can be obtained and the human body can be more quickly taken. Can be heated. In other words, the human body can be sufficiently heated even if the temperature of the sauna room is lowered more than before so that bathing can be performed more easily. In other words, if it is a moderately humidified air that has a dew point at a temperature slightly higher than the human body temperature, it reaches the dew point when the temperature drops by touching the human body, the water vapor in the air condenses, and the latent heat generated at this time further increases the human body Because it is heated, the higher the relative humidity, the faster the human body can be heated even in a dry sauna. For example, air reaching a dew point at 40 ° C has a temperature of 80 ° C and a relative humidity of 15.5%,
With such air, the human body is heated faster and more comfortably because it is heated by both the convection of air and the heat of condensation of steam. On the other hand, when inhaling extremely dry high-temperature air, the mucous membrane of the throat and nose dries and irritates.However, if the air reaches the dew point at about the human body temperature, the throat and nose are condensed by the condensed water. Is replenished and has the same effect on the human body as when inhaling steam from a wet sauna.

Further, when used in combination with a far-infrared radiation heater as in the present embodiment, both the far-infrared radiation effect and the humidification effect allow heating at a lower temperature than a conventional Finnish sauna without imposing a burden on the human body and in a short time. It becomes a sauna bath equipment that can be used. The far-infrared radiation effect and the humidifying effect allow the temperature of the sauna room to be lower than that of a conventional Finnish sauna, thereby increasing energy efficiency. Further, as described in the above paragraph [0010], the present invention reduces exhaust loss by 4%. A large energy saving effect can be achieved because it can be reduced to the extent.
Further, according to the present invention, the room temperature is reduced by 15
About 20 ° C., so that the reduced thermal energy is 20-25%, and at least 5
%, A total of 25 to 30% of heat energy can be saved. Furthermore, since gas is used as a heat source, overall energy efficiency is increased as compared with a conventional sauna using electric power as a heat source, and CO 2 is reduced.
₂ can also be reduced compared to the conventional gas heat source device.

On the other hand, as compared with a system in which a steam generator is provided outside the sauna room and a steam pipe is provided from the steam generator to the sauna room to perform fragrance humidification, the apparatus of the present invention is provided with a steam generator 10 adjacent to the sauna room. Since the steam pipe is short, the construction is easy, the temperature of the internal steam is reduced, and there is little danger of drainage.

The far-infrared sauna bath apparatus according to the present invention is not necessarily limited to the above-described embodiment.
For example, the following modified embodiments are also possible. (1) In the embodiment shown in FIGS. 2 to 5, the cleaning process is performed when the gas heater is stopped. However, the cleaning process is performed at the start of operation, or the temperature of the sauna room is excessively increased, and the combustion is automatically stopped. The cleaning operation can be performed at a time other than when the gas heater is stopped, for example, by automatically performing the cleaning operation at this time. (2) If the cleaning operation is performed during combustion, the temperature of the steam generator will be lower, and the exhaust gas temperature will be lower.In some cases, the exhaust gas may be condensed. Although it is desirable to carry out the cleaning, if the exhaust gas temperature is high and there is no fear of dew condensation, the cleaning operation may be performed during the combustion. For example, every 2 hours of operation, an automatic cleaning operation is performed for 5 minutes to prevent the formation of scale as much as possible. (3) In order to prevent the temperature of the steam pipe 13 communicating between the steam generator 10 and the fragrance generator 14 from lowering and to prevent the internal steam from being condensed, the steam pipe 13 is tied to the exhaust pipe 8 or exhausted. It is also recommended that the temperature of the steam pipe 13 be increased by passing through the inside of the pipe 8. (4) Use solenoid-operated valves V1, V2, V3, and V4 instead of solenoid valves and use motor-driven motorized valves, or use three-way valves instead of two-way valves to reduce the number of valves or open and close valves. The power to be generated may be air pressure or oil pressure, and the air pressure or oil pressure may be automatically operated by a solenoid valve.

[Brief description of the drawings]

FIG. 1 is a partially broken front view of an embodiment showing the first and second aspects of the present invention.

FIG. 2 is a configuration diagram of a steam generator according to the third embodiment.

FIG. 3 is a control circuit diagram of the steam generator according to the third embodiment.

FIG. 4 is a configuration diagram of a steam generator according to an embodiment of claim 4;

FIG. 5 is a control circuit diagram of the steam generator according to the fourth embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sauna room 2 Wall 3 Far-infrared radiator 4 Gas pipe 5 Through hole 6 Combustion pipe 7-1 Radiation pipe 7-2 Radiation pipe 7-3 Radiation pipe 8 Exhaust pipe 9 Exhaust fan 10 Steam generator 10-1 Water heating pipe 11 Exhaust stack 12 Water supply pipe 13 Steam pipe 14 Aroma generator 14-1 Aroma vapor discharge port 15 Herb storage drawer 15-1 Small hole 15-2 Herb 16-1 Switch 16-1a Switch a contact 16-1b Switch b Contact 16-2 switch 16-3 switch 16-4 switch 16-5 switch 17 Branch pipe 18 Drain port 19 Branch pipe V1 Water supply solenoid valve V2 Steam solenoid valve V3 Drain solenoid valve V4 Backwash solenoid valve T Timer relay TA Time limit A contact of timer relay TB Time limit B contact of timer relay

Claims (4)

[Claims] In a sauna bath device having a combustion device (6) in a sauna room (1), a steam generation device (10) using exhaust heat of the combustion device as a heat source is provided, and the generated steam is converted into air in a sauna room. The sauna bath apparatus as described above, which is used for humidification of the room. 2. A steam chamber (15) in which an aroma generating material (15-2) is stored, wherein steam introduced from the steam generator (10) is passed through the steam chamber (15). 2. A sauna bath according to claim 1, wherein the fragrance generating device (14) is provided in the sauna room. 3. A water supply valve (V1) provided at a water inlet to the steam generator (10), a steam valve (V2) provided at a steam outlet from the steam generator (10), and a steam outlet. And a drain valve (V3) provided on a branch pipe (17) that leads to a drain port (18). When the steam is generated, the drain valve (V3) is closed, and the water supply valve (V1) and the steam valve (V2) are closed. ) With a small amount of water for steam generation supplied to the steam generator (10) through the water supply valve (V1) with the water supply valve (V1) open. When the steam generator is washed, the steam valve (V2) is closed and the water supply valve (V1) is closed. Valve operation for opening and closing the above valves (V1, V2, V3) so that a large amount of water for washing is supplied to the steam generator (10) through the water supply valve (V1) with the drain valve (V3) open. 3. The sauna bath device according to claim 1, further comprising a control device. 4. A water supply valve (V1) provided at a water inflow section to a steam generator (10), a steam valve (V2) provided at a steam outflow section from the steam generator (10), and a water inflow section. A drain valve (V3) provided on a branch pipe (20) leading to a drain port (18) from the drain and a backwash valve (V4) provided on a branch pipe (19) leading from a steam outlet to a water supply pipe (12). ), And at the time of steam generation operation, the drain valve (V3) and the backwash valve (V4) are closed, and the water supply valve (V1) and the steam valve (V2) are opened. A small amount of water for generation is supplied to the steam generator (10). When cleaning the steam generator, the water supply valve (V1) and the steam valve (V2) are closed, and the backwash valve (V4) and the drain valve (V3) ) With the backwash valve (V
4) a large amount of water for cleaning through a steam generator (10)
2. A valve operation control device for controlling the opening and closing of each of the valves (V1, V2, V3, V4) so as to supply to the valve.
Or the sauna bath apparatus according to 2.